[RFC PATCH linux-next] et131x: Promote staging et131x driver to drivers/net
From: Mark Einon
Date: Mon Sep 22 2014 - 17:28:31 EST
This patch moves the et131x gigabit ethernet driver from drivers/staging
to drivers/net/ethernet/agere.
There are no known issues at this time.
Signed-off-by: Mark Einon <mark.einon@xxxxxxxxx>
---
This patch will only apply once the last few pending changes
make their way from staging-next to linux-next, but posting
now in the hope that feedback can be given and this change can
make it in before the next merge window.
drivers/net/ethernet/Kconfig | 1 +
drivers/net/ethernet/Makefile | 1 +
drivers/net/ethernet/agere/Kconfig | 31 +
drivers/net/ethernet/agere/Makefile | 5 +
drivers/net/ethernet/agere/et131x.c | 4412 +++++++++++++++++++++++++++++++++++
drivers/net/ethernet/agere/et131x.h | 1533 ++++++++++++
drivers/staging/Kconfig | 2 -
drivers/staging/Makefile | 1 -
drivers/staging/et131x/Kconfig | 10 -
drivers/staging/et131x/Makefile | 5 -
drivers/staging/et131x/README | 15 -
drivers/staging/et131x/et131x.c | 4412 -----------------------------------
drivers/staging/et131x/et131x.h | 1533 ------------
13 files changed, 5983 insertions(+), 5978 deletions(-)
create mode 100644 drivers/net/ethernet/agere/Kconfig
create mode 100644 drivers/net/ethernet/agere/Makefile
create mode 100644 drivers/net/ethernet/agere/et131x.c
create mode 100644 drivers/net/ethernet/agere/et131x.h
delete mode 100644 drivers/staging/et131x/Kconfig
delete mode 100644 drivers/staging/et131x/Makefile
delete mode 100644 drivers/staging/et131x/README
delete mode 100644 drivers/staging/et131x/et131x.c
delete mode 100644 drivers/staging/et131x/et131x.h
diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
index dc7406c..d48fc9c 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -20,6 +20,7 @@ config SUNGEM_PHY
source "drivers/net/ethernet/3com/Kconfig"
source "drivers/net/ethernet/adaptec/Kconfig"
source "drivers/net/ethernet/aeroflex/Kconfig"
+source "drivers/net/ethernet/agere/Kconfig"
source "drivers/net/ethernet/allwinner/Kconfig"
source "drivers/net/ethernet/alteon/Kconfig"
source "drivers/net/ethernet/altera/Kconfig"
diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
index 224a018..89207ac 100644
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -6,6 +6,7 @@ obj-$(CONFIG_NET_VENDOR_3COM) += 3com/
obj-$(CONFIG_NET_VENDOR_8390) += 8390/
obj-$(CONFIG_NET_VENDOR_ADAPTEC) += adaptec/
obj-$(CONFIG_GRETH) += aeroflex/
+obj-$(CONFIG_NET_VENDOR_AGERE) += agere/
obj-$(CONFIG_NET_VENDOR_ALLWINNER) += allwinner/
obj-$(CONFIG_NET_VENDOR_ALTEON) += alteon/
obj-$(CONFIG_ALTERA_TSE) += altera/
diff --git a/drivers/net/ethernet/agere/Kconfig b/drivers/net/ethernet/agere/Kconfig
new file mode 100644
index 0000000..b26b185a
--- /dev/null
+++ b/drivers/net/ethernet/agere/Kconfig
@@ -0,0 +1,31 @@
+#
+# Agere device configuration
+#
+
+config NET_VENDOR_AGERE
+ bool "Agere devices"
+ default y
+ depends on PCI
+ ---help---
+ If you have a network (Ethernet) card belonging to this class, say Y
+ and read the Ethernet-HOWTO, available from
+ <http://www.tldp.org/docs.html#howto>.
+
+ Note that the answer to this question doesn't directly affect the
+ kernel: saying N will just cause the configurator to skip all
+ the questions about Atheros devices. If you say Y, you will be asked
+ for your specific card in the following questions.
+
+if NET_VENDOR_AGERE
+
+config ET131X
+ tristate "Agere ET-1310 Gigabit Ethernet support"
+ depends on PCI
+ select PHYLIB
+ ---help---
+ This driver supports Agere ET-1310 ethernet adapters.
+
+ To compile this driver as a module, choose M here. The module
+ will be called et131x.
+
+endif # NET_VENDOR_AGERE
diff --git a/drivers/net/ethernet/agere/Makefile b/drivers/net/ethernet/agere/Makefile
new file mode 100644
index 0000000..027ff94
--- /dev/null
+++ b/drivers/net/ethernet/agere/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the Agere ET-131x ethernet driver
+#
+
+obj-$(CONFIG_ET131X) += et131x.o
diff --git a/drivers/net/ethernet/agere/et131x.c b/drivers/net/ethernet/agere/et131x.c
new file mode 100644
index 0000000..93afd61
--- /dev/null
+++ b/drivers/net/ethernet/agere/et131x.c
@@ -0,0 +1,4412 @@
+/* Agere Systems Inc.
+ * 10/100/1000 Base-T Ethernet Driver for the ET1301 and ET131x series MACs
+ *
+ * Copyright  2005 Agere Systems Inc.
+ * All rights reserved.
+ * http://www.agere.com
+ *
+ * Copyright (c) 2011 Mark Einon <mark.einon@xxxxxxxxx>
+ *
+ *------------------------------------------------------------------------------
+ *
+ * SOFTWARE LICENSE
+ *
+ * This software is provided subject to the following terms and conditions,
+ * which you should read carefully before using the software. Using this
+ * software indicates your acceptance of these terms and conditions. If you do
+ * not agree with these terms and conditions, do not use the software.
+ *
+ * Copyright  2005 Agere Systems Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source or binary forms, with or without
+ * modifications, are permitted provided that the following conditions are met:
+ *
+ * . Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following Disclaimer as comments in the code as
+ * well as in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * . Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following Disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * . Neither the name of Agere Systems Inc. nor the names of the contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * Disclaimer
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY
+ * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
+ * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/ctype.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/in.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+#include <linux/ioport.h>
+#include <linux/crc32.h>
+#include <linux/random.h>
+#include <linux/phy.h>
+
+#include "et131x.h"
+
+MODULE_AUTHOR("Victor Soriano <vjsoriano@xxxxxxxxx>");
+MODULE_AUTHOR("Mark Einon <mark.einon@xxxxxxxxx>");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_DESCRIPTION("10/100/1000 Base-T Ethernet Driver for the ET1310 by Agere Systems");
+
+/* EEPROM defines */
+#define MAX_NUM_REGISTER_POLLS 1000
+#define MAX_NUM_WRITE_RETRIES 2
+
+/* MAC defines */
+#define COUNTER_WRAP_16_BIT 0x10000
+#define COUNTER_WRAP_12_BIT 0x1000
+
+/* PCI defines */
+#define INTERNAL_MEM_SIZE 0x400 /* 1024 of internal memory */
+#define INTERNAL_MEM_RX_OFFSET 0x1FF /* 50% Tx, 50% Rx */
+
+/* ISR defines */
+/* For interrupts, normal running is:
+ * rxdma_xfr_done, phy_interrupt, mac_stat_interrupt,
+ * watchdog_interrupt & txdma_xfer_done
+ *
+ * In both cases, when flow control is enabled for either Tx or bi-direction,
+ * we additional enable rx_fbr0_low and rx_fbr1_low, so we know when the
+ * buffer rings are running low.
+ */
+#define INT_MASK_DISABLE 0xffffffff
+
+/* NOTE: Masking out MAC_STAT Interrupt for now...
+ * #define INT_MASK_ENABLE 0xfff6bf17
+ * #define INT_MASK_ENABLE_NO_FLOW 0xfff6bfd7
+ */
+#define INT_MASK_ENABLE 0xfffebf17
+#define INT_MASK_ENABLE_NO_FLOW 0xfffebfd7
+
+/* General defines */
+/* Packet and header sizes */
+#define NIC_MIN_PACKET_SIZE 60
+
+/* Multicast list size */
+#define NIC_MAX_MCAST_LIST 128
+
+/* Supported Filters */
+#define ET131X_PACKET_TYPE_DIRECTED 0x0001
+#define ET131X_PACKET_TYPE_MULTICAST 0x0002
+#define ET131X_PACKET_TYPE_BROADCAST 0x0004
+#define ET131X_PACKET_TYPE_PROMISCUOUS 0x0008
+#define ET131X_PACKET_TYPE_ALL_MULTICAST 0x0010
+
+/* Tx Timeout */
+#define ET131X_TX_TIMEOUT (1 * HZ)
+#define NIC_SEND_HANG_THRESHOLD 0
+
+/* MP_ADAPTER flags */
+#define FMP_ADAPTER_INTERRUPT_IN_USE 0x00000008
+
+/* MP_SHARED flags */
+#define FMP_ADAPTER_LOWER_POWER 0x00200000
+
+#define FMP_ADAPTER_NON_RECOVER_ERROR 0x00800000
+#define FMP_ADAPTER_HARDWARE_ERROR 0x04000000
+
+#define FMP_ADAPTER_FAIL_SEND_MASK 0x3ff00000
+
+/* Some offsets in PCI config space that are actually used. */
+#define ET1310_PCI_MAC_ADDRESS 0xA4
+#define ET1310_PCI_EEPROM_STATUS 0xB2
+#define ET1310_PCI_ACK_NACK 0xC0
+#define ET1310_PCI_REPLAY 0xC2
+#define ET1310_PCI_L0L1LATENCY 0xCF
+
+/* PCI Product IDs */
+#define ET131X_PCI_DEVICE_ID_GIG 0xED00 /* ET1310 1000 Base-T 8 */
+#define ET131X_PCI_DEVICE_ID_FAST 0xED01 /* ET1310 100 Base-T */
+
+/* Define order of magnitude converter */
+#define NANO_IN_A_MICRO 1000
+
+#define PARM_RX_NUM_BUFS_DEF 4
+#define PARM_RX_TIME_INT_DEF 10
+#define PARM_RX_MEM_END_DEF 0x2bc
+#define PARM_TX_TIME_INT_DEF 40
+#define PARM_TX_NUM_BUFS_DEF 4
+#define PARM_DMA_CACHE_DEF 0
+
+/* RX defines */
+#define FBR_CHUNKS 32
+#define MAX_DESC_PER_RING_RX 1024
+
+/* number of RFDs - default and min */
+#define RFD_LOW_WATER_MARK 40
+#define NIC_DEFAULT_NUM_RFD 1024
+#define NUM_FBRS 2
+
+#define MAX_PACKETS_HANDLED 256
+
+#define ALCATEL_MULTICAST_PKT 0x01000000
+#define ALCATEL_BROADCAST_PKT 0x02000000
+
+/* typedefs for Free Buffer Descriptors */
+struct fbr_desc {
+ u32 addr_lo;
+ u32 addr_hi;
+ u32 word2; /* Bits 10-31 reserved, 0-9 descriptor */
+};
+
+/* Packet Status Ring Descriptors
+ *
+ * Word 0:
+ *
+ * top 16 bits are from the Alcatel Status Word as enumerated in
+ * PE-MCXMAC Data Sheet IPD DS54 0210-1 (also IPD-DS80 0205-2)
+ *
+ * 0: hp hash pass
+ * 1: ipa IP checksum assist
+ * 2: ipp IP checksum pass
+ * 3: tcpa TCP checksum assist
+ * 4: tcpp TCP checksum pass
+ * 5: wol WOL Event
+ * 6: rxmac_error RXMAC Error Indicator
+ * 7: drop Drop packet
+ * 8: ft Frame Truncated
+ * 9: jp Jumbo Packet
+ * 10: vp VLAN Packet
+ * 11-15: unused
+ * 16: asw_prev_pkt_dropped e.g. IFG too small on previous
+ * 17: asw_RX_DV_event short receive event detected
+ * 18: asw_false_carrier_event bad carrier since last good packet
+ * 19: asw_code_err one or more nibbles signalled as errors
+ * 20: asw_CRC_err CRC error
+ * 21: asw_len_chk_err frame length field incorrect
+ * 22: asw_too_long frame length > 1518 bytes
+ * 23: asw_OK valid CRC + no code error
+ * 24: asw_multicast has a multicast address
+ * 25: asw_broadcast has a broadcast address
+ * 26: asw_dribble_nibble spurious bits after EOP
+ * 27: asw_control_frame is a control frame
+ * 28: asw_pause_frame is a pause frame
+ * 29: asw_unsupported_op unsupported OP code
+ * 30: asw_VLAN_tag VLAN tag detected
+ * 31: asw_long_evt Rx long event
+ *
+ * Word 1:
+ * 0-15: length length in bytes
+ * 16-25: bi Buffer Index
+ * 26-27: ri Ring Index
+ * 28-31: reserved
+ */
+struct pkt_stat_desc {
+ u32 word0;
+ u32 word1;
+};
+
+/* Typedefs for the RX DMA status word */
+
+/* rx status word 0 holds part of the status bits of the Rx DMA engine
+ * that get copied out to memory by the ET-1310. Word 0 is a 32 bit word
+ * which contains the Free Buffer ring 0 and 1 available offset.
+ *
+ * bit 0-9 FBR1 offset
+ * bit 10 Wrap flag for FBR1
+ * bit 16-25 FBR0 offset
+ * bit 26 Wrap flag for FBR0
+ */
+
+/* RXSTAT_WORD1_t structure holds part of the status bits of the Rx DMA engine
+ * that get copied out to memory by the ET-1310. Word 3 is a 32 bit word
+ * which contains the Packet Status Ring available offset.
+ *
+ * bit 0-15 reserved
+ * bit 16-27 PSRoffset
+ * bit 28 PSRwrap
+ * bit 29-31 unused
+ */
+
+/* struct rx_status_block is a structure representing the status of the Rx
+ * DMA engine it sits in free memory, and is pointed to by 0x101c / 0x1020
+ */
+struct rx_status_block {
+ u32 word0;
+ u32 word1;
+};
+
+/* Structure for look-up table holding free buffer ring pointers, addresses
+ * and state.
+ */
+struct fbr_lookup {
+ void *virt[MAX_DESC_PER_RING_RX];
+ u32 bus_high[MAX_DESC_PER_RING_RX];
+ u32 bus_low[MAX_DESC_PER_RING_RX];
+ void *ring_virtaddr;
+ dma_addr_t ring_physaddr;
+ void *mem_virtaddrs[MAX_DESC_PER_RING_RX / FBR_CHUNKS];
+ dma_addr_t mem_physaddrs[MAX_DESC_PER_RING_RX / FBR_CHUNKS];
+ u32 local_full;
+ u32 num_entries;
+ dma_addr_t buffsize;
+};
+
+/* struct rx_ring is the structure representing the adaptor's local
+ * reference(s) to the rings
+ */
+struct rx_ring {
+ struct fbr_lookup *fbr[NUM_FBRS];
+ void *ps_ring_virtaddr;
+ dma_addr_t ps_ring_physaddr;
+ u32 local_psr_full;
+ u32 psr_entries;
+
+ struct rx_status_block *rx_status_block;
+ dma_addr_t rx_status_bus;
+
+ /* RECV */
+ struct list_head recv_list;
+ u32 num_ready_recv;
+
+ u32 num_rfd;
+
+ bool unfinished_receives;
+};
+
+/* TX defines */
+/* word 2 of the control bits in the Tx Descriptor ring for the ET-1310
+ *
+ * 0-15: length of packet
+ * 16-27: VLAN tag
+ * 28: VLAN CFI
+ * 29-31: VLAN priority
+ *
+ * word 3 of the control bits in the Tx Descriptor ring for the ET-1310
+ *
+ * 0: last packet in the sequence
+ * 1: first packet in the sequence
+ * 2: interrupt the processor when this pkt sent
+ * 3: Control word - no packet data
+ * 4: Issue half-duplex backpressure : XON/XOFF
+ * 5: send pause frame
+ * 6: Tx frame has error
+ * 7: append CRC
+ * 8: MAC override
+ * 9: pad packet
+ * 10: Packet is a Huge packet
+ * 11: append VLAN tag
+ * 12: IP checksum assist
+ * 13: TCP checksum assist
+ * 14: UDP checksum assist
+ */
+#define TXDESC_FLAG_LASTPKT 0x0001
+#define TXDESC_FLAG_FIRSTPKT 0x0002
+#define TXDESC_FLAG_INTPROC 0x0004
+
+/* struct tx_desc represents each descriptor on the ring */
+struct tx_desc {
+ u32 addr_hi;
+ u32 addr_lo;
+ u32 len_vlan; /* control words how to xmit the */
+ u32 flags; /* data (detailed above) */
+};
+
+/* The status of the Tx DMA engine it sits in free memory, and is pointed to
+ * by 0x101c / 0x1020. This is a DMA10 type
+ */
+
+/* TCB (Transmit Control Block: Host Side) */
+struct tcb {
+ struct tcb *next; /* Next entry in ring */
+ u32 count; /* Used to spot stuck/lost packets */
+ u32 stale; /* Used to spot stuck/lost packets */
+ struct sk_buff *skb; /* Network skb we are tied to */
+ u32 index; /* Ring indexes */
+ u32 index_start;
+};
+
+/* Structure representing our local reference(s) to the ring */
+struct tx_ring {
+ /* TCB (Transmit Control Block) memory and lists */
+ struct tcb *tcb_ring;
+
+ /* List of TCBs that are ready to be used */
+ struct tcb *tcb_qhead;
+ struct tcb *tcb_qtail;
+
+ /* list of TCBs that are currently being sent. NOTE that access to all
+ * three of these (including used) are controlled via the
+ * TCBSendQLock. This lock should be secured prior to incementing /
+ * decrementing used, or any queue manipulation on send_head /
+ * tail
+ */
+ struct tcb *send_head;
+ struct tcb *send_tail;
+ int used;
+
+ /* The actual descriptor ring */
+ struct tx_desc *tx_desc_ring;
+ dma_addr_t tx_desc_ring_pa;
+
+ /* send_idx indicates where we last wrote to in the descriptor ring. */
+ u32 send_idx;
+
+ /* The location of the write-back status block */
+ u32 *tx_status;
+ dma_addr_t tx_status_pa;
+
+ /* Packets since the last IRQ: used for interrupt coalescing */
+ int since_irq;
+};
+
+/* Do not change these values: if changed, then change also in respective
+ * TXdma and Rxdma engines
+ */
+#define NUM_DESC_PER_RING_TX 512 /* TX Do not change these values */
+#define NUM_TCB 64
+
+/* These values are all superseded by registry entries to facilitate tuning.
+ * Once the desired performance has been achieved, the optimal registry values
+ * should be re-populated to these #defines:
+ */
+#define TX_ERROR_PERIOD 1000
+
+#define LO_MARK_PERCENT_FOR_PSR 15
+#define LO_MARK_PERCENT_FOR_RX 15
+
+/* RFD (Receive Frame Descriptor) */
+struct rfd {
+ struct list_head list_node;
+ struct sk_buff *skb;
+ u32 len; /* total size of receive frame */
+ u16 bufferindex;
+ u8 ringindex;
+};
+
+/* Flow Control */
+#define FLOW_BOTH 0
+#define FLOW_TXONLY 1
+#define FLOW_RXONLY 2
+#define FLOW_NONE 3
+
+/* Struct to define some device statistics */
+struct ce_stats {
+ /* MIB II variables
+ *
+ * NOTE: atomic_t types are only guaranteed to store 24-bits; if we
+ * MUST have 32, then we'll need another way to perform atomic
+ * operations
+ */
+ u32 multicast_pkts_rcvd;
+ u32 rcvd_pkts_dropped;
+
+ /* Tx Statistics. */
+ u32 tx_underflows;
+ u32 tx_collisions;
+ u32 tx_excessive_collisions;
+ u32 tx_first_collisions;
+ u32 tx_late_collisions;
+ u32 tx_max_pkt_errs;
+ u32 tx_deferred;
+
+ /* Rx Statistics. */
+ u32 rx_overflows;
+ u32 rx_length_errs;
+ u32 rx_align_errs;
+ u32 rx_crc_errs;
+ u32 rx_code_violations;
+ u32 rx_other_errs;
+
+ u32 interrupt_status;
+};
+
+/* The private adapter structure */
+struct et131x_adapter {
+ struct net_device *netdev;
+ struct pci_dev *pdev;
+ struct mii_bus *mii_bus;
+ struct phy_device *phydev;
+ struct napi_struct napi;
+
+ /* Flags that indicate current state of the adapter */
+ u32 flags;
+
+ /* local link state, to determine if a state change has occurred */
+ int link;
+
+ /* Configuration */
+ u8 rom_addr[ETH_ALEN];
+ u8 addr[ETH_ALEN];
+ bool has_eeprom;
+ u8 eeprom_data[2];
+
+ spinlock_t tcb_send_qlock; /* protects the tx_ring send tcb list */
+ spinlock_t tcb_ready_qlock; /* protects the tx_ring ready tcb list */
+ spinlock_t rcv_lock; /* protects the rx_ring receive list */
+
+ /* Packet Filter and look ahead size */
+ u32 packet_filter;
+
+ /* multicast list */
+ u32 multicast_addr_count;
+ u8 multicast_list[NIC_MAX_MCAST_LIST][ETH_ALEN];
+
+ /* Pointer to the device's PCI register space */
+ struct address_map __iomem *regs;
+
+ /* Registry parameters */
+ u8 wanted_flow; /* Flow we want for 802.3x flow control */
+ u32 registry_jumbo_packet; /* Max supported ethernet packet size */
+
+ /* Derived from the registry: */
+ u8 flow; /* flow control validated by the far-end */
+
+ /* Minimize init-time */
+ struct timer_list error_timer;
+
+ /* variable putting the phy into coma mode when boot up with no cable
+ * plugged in after 5 seconds
+ */
+ u8 boot_coma;
+
+ /* Tx Memory Variables */
+ struct tx_ring tx_ring;
+
+ /* Rx Memory Variables */
+ struct rx_ring rx_ring;
+
+ /* Stats */
+ struct ce_stats stats;
+};
+
+static int eeprom_wait_ready(struct pci_dev *pdev, u32 *status)
+{
+ u32 reg;
+ int i;
+
+ /* 1. Check LBCIF Status Register for bits 6 & 3:2 all equal to 0 and
+ * bits 7,1:0 both equal to 1, at least once after reset.
+ * Subsequent operations need only to check that bits 1:0 are equal
+ * to 1 prior to starting a single byte read/write
+ */
+ for (i = 0; i < MAX_NUM_REGISTER_POLLS; i++) {
+ /* Read registers grouped in DWORD1 */
+ if (pci_read_config_dword(pdev, LBCIF_DWORD1_GROUP, ®))
+ return -EIO;
+
+ /* I2C idle and Phy Queue Avail both true */
+ if ((reg & 0x3000) == 0x3000) {
+ if (status)
+ *status = reg;
+ return reg & 0xFF;
+ }
+ }
+ return -ETIMEDOUT;
+}
+
+/* eeprom_write - Write a byte to the ET1310's EEPROM
+ * @adapter: pointer to our private adapter structure
+ * @addr: the address to write
+ * @data: the value to write
+ *
+ * Returns 1 for a successful write.
+ */
+static int eeprom_write(struct et131x_adapter *adapter, u32 addr, u8 data)
+{
+ struct pci_dev *pdev = adapter->pdev;
+ int index = 0;
+ int retries;
+ int err = 0;
+ int writeok = 0;
+ u32 status;
+ u32 val = 0;
+
+ /* For an EEPROM, an I2C single byte write is defined as a START
+ * condition followed by the device address, EEPROM address, one byte
+ * of data and a STOP condition. The STOP condition will trigger the
+ * EEPROM's internally timed write cycle to the nonvolatile memory.
+ * All inputs are disabled during this write cycle and the EEPROM will
+ * not respond to any access until the internal write is complete.
+ */
+ err = eeprom_wait_ready(pdev, NULL);
+ if (err < 0)
+ return err;
+
+ /* 2. Write to the LBCIF Control Register: bit 7=1, bit 6=1, bit 3=0,
+ * and bits 1:0 both =0. Bit 5 should be set according to the
+ * type of EEPROM being accessed (1=two byte addressing, 0=one
+ * byte addressing).
+ */
+ if (pci_write_config_byte(pdev, LBCIF_CONTROL_REGISTER,
+ LBCIF_CONTROL_LBCIF_ENABLE |
+ LBCIF_CONTROL_I2C_WRITE))
+ return -EIO;
+
+ /* Prepare EEPROM address for Step 3 */
+ for (retries = 0; retries < MAX_NUM_WRITE_RETRIES; retries++) {
+ /* Write the address to the LBCIF Address Register */
+ if (pci_write_config_dword(pdev, LBCIF_ADDRESS_REGISTER, addr))
+ break;
+ /* Write the data to the LBCIF Data Register (the I2C write
+ * will begin).
+ */
+ if (pci_write_config_byte(pdev, LBCIF_DATA_REGISTER, data))
+ break;
+ /* Monitor bit 1:0 of the LBCIF Status Register. When bits
+ * 1:0 are both equal to 1, the I2C write has completed and the
+ * internal write cycle of the EEPROM is about to start.
+ * (bits 1:0 = 01 is a legal state while waiting from both
+ * equal to 1, but bits 1:0 = 10 is invalid and implies that
+ * something is broken).
+ */
+ err = eeprom_wait_ready(pdev, &status);
+ if (err < 0)
+ return 0;
+
+ /* Check bit 3 of the LBCIF Status Register. If equal to 1,
+ * an error has occurred.Don't break here if we are revision
+ * 1, this is so we do a blind write for load bug.
+ */
+ if ((status & LBCIF_STATUS_GENERAL_ERROR) &&
+ adapter->pdev->revision == 0)
+ break;
+
+ /* Check bit 2 of the LBCIF Status Register. If equal to 1 an
+ * ACK error has occurred on the address phase of the write.
+ * This could be due to an actual hardware failure or the
+ * EEPROM may still be in its internal write cycle from a
+ * previous write. This write operation was ignored and must be
+ *repeated later.
+ */
+ if (status & LBCIF_STATUS_ACK_ERROR) {
+ /* This could be due to an actual hardware failure
+ * or the EEPROM may still be in its internal write
+ * cycle from a previous write. This write operation
+ * was ignored and must be repeated later.
+ */
+ udelay(10);
+ continue;
+ }
+
+ writeok = 1;
+ break;
+ }
+
+ /* Set bit 6 of the LBCIF Control Register = 0.
+ */
+ udelay(10);
+
+ while (1) {
+ if (pci_write_config_byte(pdev, LBCIF_CONTROL_REGISTER,
+ LBCIF_CONTROL_LBCIF_ENABLE))
+ writeok = 0;
+
+ /* Do read until internal ACK_ERROR goes away meaning write
+ * completed
+ */
+ do {
+ pci_write_config_dword(pdev,
+ LBCIF_ADDRESS_REGISTER,
+ addr);
+ do {
+ pci_read_config_dword(pdev,
+ LBCIF_DATA_REGISTER,
+ &val);
+ } while ((val & 0x00010000) == 0);
+ } while (val & 0x00040000);
+
+ if ((val & 0xFF00) != 0xC000 || index == 10000)
+ break;
+ index++;
+ }
+ return writeok ? 0 : -EIO;
+}
+
+/* eeprom_read - Read a byte from the ET1310's EEPROM
+ * @adapter: pointer to our private adapter structure
+ * @addr: the address from which to read
+ * @pdata: a pointer to a byte in which to store the value of the read
+ * @eeprom_id: the ID of the EEPROM
+ * @addrmode: how the EEPROM is to be accessed
+ *
+ * Returns 1 for a successful read
+ */
+static int eeprom_read(struct et131x_adapter *adapter, u32 addr, u8 *pdata)
+{
+ struct pci_dev *pdev = adapter->pdev;
+ int err;
+ u32 status;
+
+ /* A single byte read is similar to the single byte write, with the
+ * exception of the data flow:
+ */
+ err = eeprom_wait_ready(pdev, NULL);
+ if (err < 0)
+ return err;
+ /* Write to the LBCIF Control Register: bit 7=1, bit 6=0, bit 3=0,
+ * and bits 1:0 both =0. Bit 5 should be set according to the type
+ * of EEPROM being accessed (1=two byte addressing, 0=one byte
+ * addressing).
+ */
+ if (pci_write_config_byte(pdev, LBCIF_CONTROL_REGISTER,
+ LBCIF_CONTROL_LBCIF_ENABLE))
+ return -EIO;
+ /* Write the address to the LBCIF Address Register (I2C read will
+ * begin).
+ */
+ if (pci_write_config_dword(pdev, LBCIF_ADDRESS_REGISTER, addr))
+ return -EIO;
+ /* Monitor bit 0 of the LBCIF Status Register. When = 1, I2C read
+ * is complete. (if bit 1 =1 and bit 0 stays = 0, a hardware failure
+ * has occurred).
+ */
+ err = eeprom_wait_ready(pdev, &status);
+ if (err < 0)
+ return err;
+ /* Regardless of error status, read data byte from LBCIF Data
+ * Register.
+ */
+ *pdata = err;
+ /* Check bit 2 of the LBCIF Status Register. If = 1,
+ * then an error has occurred.
+ */
+ return (status & LBCIF_STATUS_ACK_ERROR) ? -EIO : 0;
+}
+
+static int et131x_init_eeprom(struct et131x_adapter *adapter)
+{
+ struct pci_dev *pdev = adapter->pdev;
+ u8 eestatus;
+
+ /* We first need to check the EEPROM Status code located at offset
+ * 0xB2 of config space
+ */
+ pci_read_config_byte(pdev, ET1310_PCI_EEPROM_STATUS, &eestatus);
+
+ /* THIS IS A WORKAROUND:
+ * I need to call this function twice to get my card in a
+ * LG M1 Express Dual running. I tried also a msleep before this
+ * function, because I thought there could be some time conditions
+ * but it didn't work. Call the whole function twice also work.
+ */
+ if (pci_read_config_byte(pdev, ET1310_PCI_EEPROM_STATUS, &eestatus)) {
+ dev_err(&pdev->dev,
+ "Could not read PCI config space for EEPROM Status\n");
+ return -EIO;
+ }
+
+ /* Determine if the error(s) we care about are present. If they are
+ * present we need to fail.
+ */
+ if (eestatus & 0x4C) {
+ int write_failed = 0;
+
+ if (pdev->revision == 0x01) {
+ int i;
+ static const u8 eedata[4] = { 0xFE, 0x13, 0x10, 0xFF };
+
+ /* Re-write the first 4 bytes if we have an eeprom
+ * present and the revision id is 1, this fixes the
+ * corruption seen with 1310 B Silicon
+ */
+ for (i = 0; i < 3; i++)
+ if (eeprom_write(adapter, i, eedata[i]) < 0)
+ write_failed = 1;
+ }
+ if (pdev->revision != 0x01 || write_failed) {
+ dev_err(&pdev->dev,
+ "Fatal EEPROM Status Error - 0x%04x\n",
+ eestatus);
+
+ /* This error could mean that there was an error
+ * reading the eeprom or that the eeprom doesn't exist.
+ * We will treat each case the same and not try to
+ * gather additional information that normally would
+ * come from the eeprom, like MAC Address
+ */
+ adapter->has_eeprom = 0;
+ return -EIO;
+ }
+ }
+ adapter->has_eeprom = 1;
+
+ /* Read the EEPROM for information regarding LED behavior. Refer to
+ * ET1310_phy.c, et131x_xcvr_init(), for its use.
+ */
+ eeprom_read(adapter, 0x70, &adapter->eeprom_data[0]);
+ eeprom_read(adapter, 0x71, &adapter->eeprom_data[1]);
+
+ if (adapter->eeprom_data[0] != 0xcd)
+ /* Disable all optional features */
+ adapter->eeprom_data[1] = 0x00;
+
+ return 0;
+}
+
+/* et131x_rx_dma_enable - re-start of Rx_DMA on the ET1310.
+ * @adapter: pointer to our adapter structure
+ */
+static void et131x_rx_dma_enable(struct et131x_adapter *adapter)
+{
+ /* Setup the receive dma configuration register for normal operation */
+ u32 csr = ET_RXDMA_CSR_FBR1_ENABLE;
+ struct rx_ring *rx_ring = &adapter->rx_ring;
+
+ if (rx_ring->fbr[1]->buffsize == 4096)
+ csr |= ET_RXDMA_CSR_FBR1_SIZE_LO;
+ else if (rx_ring->fbr[1]->buffsize == 8192)
+ csr |= ET_RXDMA_CSR_FBR1_SIZE_HI;
+ else if (rx_ring->fbr[1]->buffsize == 16384)
+ csr |= ET_RXDMA_CSR_FBR1_SIZE_LO | ET_RXDMA_CSR_FBR1_SIZE_HI;
+
+ csr |= ET_RXDMA_CSR_FBR0_ENABLE;
+ if (rx_ring->fbr[0]->buffsize == 256)
+ csr |= ET_RXDMA_CSR_FBR0_SIZE_LO;
+ else if (rx_ring->fbr[0]->buffsize == 512)
+ csr |= ET_RXDMA_CSR_FBR0_SIZE_HI;
+ else if (rx_ring->fbr[0]->buffsize == 1024)
+ csr |= ET_RXDMA_CSR_FBR0_SIZE_LO | ET_RXDMA_CSR_FBR0_SIZE_HI;
+ writel(csr, &adapter->regs->rxdma.csr);
+
+ csr = readl(&adapter->regs->rxdma.csr);
+ if (csr & ET_RXDMA_CSR_HALT_STATUS) {
+ udelay(5);
+ csr = readl(&adapter->regs->rxdma.csr);
+ if (csr & ET_RXDMA_CSR_HALT_STATUS) {
+ dev_err(&adapter->pdev->dev,
+ "RX Dma failed to exit halt state. CSR 0x%08x\n",
+ csr);
+ }
+ }
+}
+
+/* et131x_rx_dma_disable - Stop of Rx_DMA on the ET1310
+ * @adapter: pointer to our adapter structure
+ */
+static void et131x_rx_dma_disable(struct et131x_adapter *adapter)
+{
+ u32 csr;
+ /* Setup the receive dma configuration register */
+ writel(ET_RXDMA_CSR_HALT | ET_RXDMA_CSR_FBR1_ENABLE,
+ &adapter->regs->rxdma.csr);
+ csr = readl(&adapter->regs->rxdma.csr);
+ if (!(csr & ET_RXDMA_CSR_HALT_STATUS)) {
+ udelay(5);
+ csr = readl(&adapter->regs->rxdma.csr);
+ if (!(csr & ET_RXDMA_CSR_HALT_STATUS))
+ dev_err(&adapter->pdev->dev,
+ "RX Dma failed to enter halt state. CSR 0x%08x\n",
+ csr);
+ }
+}
+
+/* et131x_tx_dma_enable - re-start of Tx_DMA on the ET1310.
+ * @adapter: pointer to our adapter structure
+ *
+ * Mainly used after a return to the D0 (full-power) state from a lower state.
+ */
+static void et131x_tx_dma_enable(struct et131x_adapter *adapter)
+{
+ /* Setup the transmit dma configuration register for normal
+ * operation
+ */
+ writel(ET_TXDMA_SNGL_EPKT | (PARM_DMA_CACHE_DEF << ET_TXDMA_CACHE_SHIFT),
+ &adapter->regs->txdma.csr);
+}
+
+static inline void add_10bit(u32 *v, int n)
+{
+ *v = INDEX10(*v + n) | (*v & ET_DMA10_WRAP);
+}
+
+static inline void add_12bit(u32 *v, int n)
+{
+ *v = INDEX12(*v + n) | (*v & ET_DMA12_WRAP);
+}
+
+/* et1310_config_mac_regs1 - Initialize the first part of MAC regs
+ * @adapter: pointer to our adapter structure
+ */
+static void et1310_config_mac_regs1(struct et131x_adapter *adapter)
+{
+ struct mac_regs __iomem *macregs = &adapter->regs->mac;
+ u32 station1;
+ u32 station2;
+ u32 ipg;
+
+ /* First we need to reset everything. Write to MAC configuration
+ * register 1 to perform reset.
+ */
+ writel(ET_MAC_CFG1_SOFT_RESET | ET_MAC_CFG1_SIM_RESET |
+ ET_MAC_CFG1_RESET_RXMC | ET_MAC_CFG1_RESET_TXMC |
+ ET_MAC_CFG1_RESET_RXFUNC | ET_MAC_CFG1_RESET_TXFUNC,
+ ¯egs->cfg1);
+
+ /* Next lets configure the MAC Inter-packet gap register */
+ ipg = 0x38005860; /* IPG1 0x38 IPG2 0x58 B2B 0x60 */
+ ipg |= 0x50 << 8; /* ifg enforce 0x50 */
+ writel(ipg, ¯egs->ipg);
+
+ /* Next lets configure the MAC Half Duplex register */
+ /* BEB trunc 0xA, Ex Defer, Rexmit 0xF Coll 0x37 */
+ writel(0x00A1F037, ¯egs->hfdp);
+
+ /* Next lets configure the MAC Interface Control register */
+ writel(0, ¯egs->if_ctrl);
+
+ /* Let's move on to setting up the mii management configuration */
+ writel(ET_MAC_MIIMGMT_CLK_RST, ¯egs->mii_mgmt_cfg);
+
+ /* Next lets configure the MAC Station Address register. These
+ * values are read from the EEPROM during initialization and stored
+ * in the adapter structure. We write what is stored in the adapter
+ * structure to the MAC Station Address registers high and low. This
+ * station address is used for generating and checking pause control
+ * packets.
+ */
+ station2 = (adapter->addr[1] << ET_MAC_STATION_ADDR2_OC2_SHIFT) |
+ (adapter->addr[0] << ET_MAC_STATION_ADDR2_OC1_SHIFT);
+ station1 = (adapter->addr[5] << ET_MAC_STATION_ADDR1_OC6_SHIFT) |
+ (adapter->addr[4] << ET_MAC_STATION_ADDR1_OC5_SHIFT) |
+ (adapter->addr[3] << ET_MAC_STATION_ADDR1_OC4_SHIFT) |
+ adapter->addr[2];
+ writel(station1, ¯egs->station_addr_1);
+ writel(station2, ¯egs->station_addr_2);
+
+ /* Max ethernet packet in bytes that will be passed by the mac without
+ * being truncated. Allow the MAC to pass 4 more than our max packet
+ * size. This is 4 for the Ethernet CRC.
+ *
+ * Packets larger than (registry_jumbo_packet) that do not contain a
+ * VLAN ID will be dropped by the Rx function.
+ */
+ writel(adapter->registry_jumbo_packet + 4, ¯egs->max_fm_len);
+
+ /* clear out MAC config reset */
+ writel(0, ¯egs->cfg1);
+}
+
+/* et1310_config_mac_regs2 - Initialize the second part of MAC regs
+ * @adapter: pointer to our adapter structure
+ */
+static void et1310_config_mac_regs2(struct et131x_adapter *adapter)
+{
+ int32_t delay = 0;
+ struct mac_regs __iomem *mac = &adapter->regs->mac;
+ struct phy_device *phydev = adapter->phydev;
+ u32 cfg1;
+ u32 cfg2;
+ u32 ifctrl;
+ u32 ctl;
+
+ ctl = readl(&adapter->regs->txmac.ctl);
+ cfg1 = readl(&mac->cfg1);
+ cfg2 = readl(&mac->cfg2);
+ ifctrl = readl(&mac->if_ctrl);
+
+ /* Set up the if mode bits */
+ cfg2 &= ~ET_MAC_CFG2_IFMODE_MASK;
+ if (phydev->speed == SPEED_1000) {
+ cfg2 |= ET_MAC_CFG2_IFMODE_1000;
+ /* Phy mode bit */
+ ifctrl &= ~ET_MAC_IFCTRL_PHYMODE;
+ } else {
+ cfg2 |= ET_MAC_CFG2_IFMODE_100;
+ ifctrl |= ET_MAC_IFCTRL_PHYMODE;
+ }
+
+ /* We need to enable Rx/Tx */
+ cfg1 |= ET_MAC_CFG1_RX_ENABLE | ET_MAC_CFG1_TX_ENABLE |
+ ET_MAC_CFG1_TX_FLOW;
+ /* Initialize loop back to off */
+ cfg1 &= ~(ET_MAC_CFG1_LOOPBACK | ET_MAC_CFG1_RX_FLOW);
+ if (adapter->flow == FLOW_RXONLY || adapter->flow == FLOW_BOTH)
+ cfg1 |= ET_MAC_CFG1_RX_FLOW;
+ writel(cfg1, &mac->cfg1);
+
+ /* Now we need to initialize the MAC Configuration 2 register */
+ /* preamble 7, check length, huge frame off, pad crc, crc enable
+ * full duplex off
+ */
+ cfg2 |= 0x7 << ET_MAC_CFG2_PREAMBLE_SHIFT;
+ cfg2 |= ET_MAC_CFG2_IFMODE_LEN_CHECK;
+ cfg2 |= ET_MAC_CFG2_IFMODE_PAD_CRC;
+ cfg2 |= ET_MAC_CFG2_IFMODE_CRC_ENABLE;
+ cfg2 &= ~ET_MAC_CFG2_IFMODE_HUGE_FRAME;
+ cfg2 &= ~ET_MAC_CFG2_IFMODE_FULL_DPLX;
+
+ /* Turn on duplex if needed */
+ if (phydev->duplex == DUPLEX_FULL)
+ cfg2 |= ET_MAC_CFG2_IFMODE_FULL_DPLX;
+
+ ifctrl &= ~ET_MAC_IFCTRL_GHDMODE;
+ if (phydev->duplex == DUPLEX_HALF)
+ ifctrl |= ET_MAC_IFCTRL_GHDMODE;
+
+ writel(ifctrl, &mac->if_ctrl);
+ writel(cfg2, &mac->cfg2);
+
+ do {
+ udelay(10);
+ delay++;
+ cfg1 = readl(&mac->cfg1);
+ } while ((cfg1 & ET_MAC_CFG1_WAIT) != ET_MAC_CFG1_WAIT && delay < 100);
+
+ if (delay == 100) {
+ dev_warn(&adapter->pdev->dev,
+ "Syncd bits did not respond correctly cfg1 word 0x%08x\n",
+ cfg1);
+ }
+
+ /* Enable txmac */
+ ctl |= ET_TX_CTRL_TXMAC_ENABLE | ET_TX_CTRL_FC_DISABLE;
+ writel(ctl, &adapter->regs->txmac.ctl);
+
+ /* Ready to start the RXDMA/TXDMA engine */
+ if (adapter->flags & FMP_ADAPTER_LOWER_POWER) {
+ et131x_rx_dma_enable(adapter);
+ et131x_tx_dma_enable(adapter);
+ }
+}
+
+/* et1310_in_phy_coma - check if the device is in phy coma
+ * @adapter: pointer to our adapter structure
+ *
+ * Returns 0 if the device is not in phy coma, 1 if it is in phy coma
+ */
+static int et1310_in_phy_coma(struct et131x_adapter *adapter)
+{
+ u32 pmcsr = readl(&adapter->regs->global.pm_csr);
+
+ return ET_PM_PHY_SW_COMA & pmcsr ? 1 : 0;
+}
+
+static void et1310_setup_device_for_multicast(struct et131x_adapter *adapter)
+{
+ struct rxmac_regs __iomem *rxmac = &adapter->regs->rxmac;
+ u32 hash1 = 0;
+ u32 hash2 = 0;
+ u32 hash3 = 0;
+ u32 hash4 = 0;
+ u32 pm_csr;
+
+ /* If ET131X_PACKET_TYPE_MULTICAST is specified, then we provision
+ * the multi-cast LIST. If it is NOT specified, (and "ALL" is not
+ * specified) then we should pass NO multi-cast addresses to the
+ * driver.
+ */
+ if (adapter->packet_filter & ET131X_PACKET_TYPE_MULTICAST) {
+ int i;
+
+ /* Loop through our multicast array and set up the device */
+ for (i = 0; i < adapter->multicast_addr_count; i++) {
+ u32 result;
+
+ result = ether_crc(6, adapter->multicast_list[i]);
+
+ result = (result & 0x3F800000) >> 23;
+
+ if (result < 32) {
+ hash1 |= (1 << result);
+ } else if ((31 < result) && (result < 64)) {
+ result -= 32;
+ hash2 |= (1 << result);
+ } else if ((63 < result) && (result < 96)) {
+ result -= 64;
+ hash3 |= (1 << result);
+ } else {
+ result -= 96;
+ hash4 |= (1 << result);
+ }
+ }
+ }
+
+ /* Write out the new hash to the device */
+ pm_csr = readl(&adapter->regs->global.pm_csr);
+ if (!et1310_in_phy_coma(adapter)) {
+ writel(hash1, &rxmac->multi_hash1);
+ writel(hash2, &rxmac->multi_hash2);
+ writel(hash3, &rxmac->multi_hash3);
+ writel(hash4, &rxmac->multi_hash4);
+ }
+}
+
+static void et1310_setup_device_for_unicast(struct et131x_adapter *adapter)
+{
+ struct rxmac_regs __iomem *rxmac = &adapter->regs->rxmac;
+ u32 uni_pf1;
+ u32 uni_pf2;
+ u32 uni_pf3;
+ u32 pm_csr;
+
+ /* Set up unicast packet filter reg 3 to be the first two octets of
+ * the MAC address for both address
+ *
+ * Set up unicast packet filter reg 2 to be the octets 2 - 5 of the
+ * MAC address for second address
+ *
+ * Set up unicast packet filter reg 3 to be the octets 2 - 5 of the
+ * MAC address for first address
+ */
+ uni_pf3 = (adapter->addr[0] << ET_RX_UNI_PF_ADDR2_1_SHIFT) |
+ (adapter->addr[1] << ET_RX_UNI_PF_ADDR2_2_SHIFT) |
+ (adapter->addr[0] << ET_RX_UNI_PF_ADDR1_1_SHIFT) |
+ adapter->addr[1];
+
+ uni_pf2 = (adapter->addr[2] << ET_RX_UNI_PF_ADDR2_3_SHIFT) |
+ (adapter->addr[3] << ET_RX_UNI_PF_ADDR2_4_SHIFT) |
+ (adapter->addr[4] << ET_RX_UNI_PF_ADDR2_5_SHIFT) |
+ adapter->addr[5];
+
+ uni_pf1 = (adapter->addr[2] << ET_RX_UNI_PF_ADDR1_3_SHIFT) |
+ (adapter->addr[3] << ET_RX_UNI_PF_ADDR1_4_SHIFT) |
+ (adapter->addr[4] << ET_RX_UNI_PF_ADDR1_5_SHIFT) |
+ adapter->addr[5];
+
+ pm_csr = readl(&adapter->regs->global.pm_csr);
+ if (!et1310_in_phy_coma(adapter)) {
+ writel(uni_pf1, &rxmac->uni_pf_addr1);
+ writel(uni_pf2, &rxmac->uni_pf_addr2);
+ writel(uni_pf3, &rxmac->uni_pf_addr3);
+ }
+}
+
+static void et1310_config_rxmac_regs(struct et131x_adapter *adapter)
+{
+ struct rxmac_regs __iomem *rxmac = &adapter->regs->rxmac;
+ struct phy_device *phydev = adapter->phydev;
+ u32 sa_lo;
+ u32 sa_hi = 0;
+ u32 pf_ctrl = 0;
+ u32 __iomem *wolw;
+
+ /* Disable the MAC while it is being configured (also disable WOL) */
+ writel(0x8, &rxmac->ctrl);
+
+ /* Initialize WOL to disabled. */
+ writel(0, &rxmac->crc0);
+ writel(0, &rxmac->crc12);
+ writel(0, &rxmac->crc34);
+
+ /* We need to set the WOL mask0 - mask4 next. We initialize it to
+ * its default Values of 0x00000000 because there are not WOL masks
+ * as of this time.
+ */
+ for (wolw = &rxmac->mask0_word0; wolw <= &rxmac->mask4_word3; wolw++)
+ writel(0, wolw);
+
+ /* Lets setup the WOL Source Address */
+ sa_lo = (adapter->addr[2] << ET_RX_WOL_LO_SA3_SHIFT) |
+ (adapter->addr[3] << ET_RX_WOL_LO_SA4_SHIFT) |
+ (adapter->addr[4] << ET_RX_WOL_LO_SA5_SHIFT) |
+ adapter->addr[5];
+ writel(sa_lo, &rxmac->sa_lo);
+
+ sa_hi = (u32)(adapter->addr[0] << ET_RX_WOL_HI_SA1_SHIFT) |
+ adapter->addr[1];
+ writel(sa_hi, &rxmac->sa_hi);
+
+ /* Disable all Packet Filtering */
+ writel(0, &rxmac->pf_ctrl);
+
+ /* Let's initialize the Unicast Packet filtering address */
+ if (adapter->packet_filter & ET131X_PACKET_TYPE_DIRECTED) {
+ et1310_setup_device_for_unicast(adapter);
+ pf_ctrl |= ET_RX_PFCTRL_UNICST_FILTER_ENABLE;
+ } else {
+ writel(0, &rxmac->uni_pf_addr1);
+ writel(0, &rxmac->uni_pf_addr2);
+ writel(0, &rxmac->uni_pf_addr3);
+ }
+
+ /* Let's initialize the Multicast hash */
+ if (!(adapter->packet_filter & ET131X_PACKET_TYPE_ALL_MULTICAST)) {
+ pf_ctrl |= ET_RX_PFCTRL_MLTCST_FILTER_ENABLE;
+ et1310_setup_device_for_multicast(adapter);
+ }
+
+ /* Runt packet filtering. Didn't work in version A silicon. */
+ pf_ctrl |= (NIC_MIN_PACKET_SIZE + 4) << ET_RX_PFCTRL_MIN_PKT_SZ_SHIFT;
+ pf_ctrl |= ET_RX_PFCTRL_FRAG_FILTER_ENABLE;
+
+ if (adapter->registry_jumbo_packet > 8192)
+ /* In order to transmit jumbo packets greater than 8k, the
+ * FIFO between RxMAC and RxDMA needs to be reduced in size
+ * to (16k - Jumbo packet size). In order to implement this,
+ * we must use "cut through" mode in the RxMAC, which chops
+ * packets down into segments which are (max_size * 16). In
+ * this case we selected 256 bytes, since this is the size of
+ * the PCI-Express TLP's that the 1310 uses.
+ *
+ * seg_en on, fc_en off, size 0x10
+ */
+ writel(0x41, &rxmac->mcif_ctrl_max_seg);
+ else
+ writel(0, &rxmac->mcif_ctrl_max_seg);
+
+ /* Initialize the MCIF water marks */
+ writel(0, &rxmac->mcif_water_mark);
+
+ /* Initialize the MIF control */
+ writel(0, &rxmac->mif_ctrl);
+
+ /* Initialize the Space Available Register */
+ writel(0, &rxmac->space_avail);
+
+ /* Initialize the the mif_ctrl register
+ * bit 3: Receive code error. One or more nibbles were signaled as
+ * errors during the reception of the packet. Clear this
+ * bit in Gigabit, set it in 100Mbit. This was derived
+ * experimentally at UNH.
+ * bit 4: Receive CRC error. The packet's CRC did not match the
+ * internally generated CRC.
+ * bit 5: Receive length check error. Indicates that frame length
+ * field value in the packet does not match the actual data
+ * byte length and is not a type field.
+ * bit 16: Receive frame truncated.
+ * bit 17: Drop packet enable
+ */
+ if (phydev && phydev->speed == SPEED_100)
+ writel(0x30038, &rxmac->mif_ctrl);
+ else
+ writel(0x30030, &rxmac->mif_ctrl);
+
+ /* Finally we initialize RxMac to be enabled & WOL disabled. Packet
+ * filter is always enabled since it is where the runt packets are
+ * supposed to be dropped. For version A silicon, runt packet
+ * dropping doesn't work, so it is disabled in the pf_ctrl register,
+ * but we still leave the packet filter on.
+ */
+ writel(pf_ctrl, &rxmac->pf_ctrl);
+ writel(ET_RX_CTRL_RXMAC_ENABLE | ET_RX_CTRL_WOL_DISABLE, &rxmac->ctrl);
+}
+
+static void et1310_config_txmac_regs(struct et131x_adapter *adapter)
+{
+ struct txmac_regs __iomem *txmac = &adapter->regs->txmac;
+
+ /* We need to update the Control Frame Parameters
+ * cfpt - control frame pause timer set to 64 (0x40)
+ * cfep - control frame extended pause timer set to 0x0
+ */
+ if (adapter->flow == FLOW_NONE)
+ writel(0, &txmac->cf_param);
+ else
+ writel(0x40, &txmac->cf_param);
+}
+
+static void et1310_config_macstat_regs(struct et131x_adapter *adapter)
+{
+ struct macstat_regs __iomem *macstat = &adapter->regs->macstat;
+ u32 __iomem *reg;
+
+ /* initialize all the macstat registers to zero on the device */
+ for (reg = &macstat->txrx_0_64_byte_frames;
+ reg <= &macstat->carry_reg2; reg++)
+ writel(0, reg);
+
+ /* Unmask any counters that we want to track the overflow of.
+ * Initially this will be all counters. It may become clear later
+ * that we do not need to track all counters.
+ */
+ writel(0xFFFFBE32, &macstat->carry_reg1_mask);
+ writel(0xFFFE7E8B, &macstat->carry_reg2_mask);
+}
+
+/* et131x_phy_mii_read - Read from the PHY through the MII Interface on the MAC
+ * @adapter: pointer to our private adapter structure
+ * @addr: the address of the transceiver
+ * @reg: the register to read
+ * @value: pointer to a 16-bit value in which the value will be stored
+ */
+static int et131x_phy_mii_read(struct et131x_adapter *adapter, u8 addr,
+ u8 reg, u16 *value)
+{
+ struct mac_regs __iomem *mac = &adapter->regs->mac;
+ int status = 0;
+ u32 delay = 0;
+ u32 mii_addr;
+ u32 mii_cmd;
+ u32 mii_indicator;
+
+ /* Save a local copy of the registers we are dealing with so we can
+ * set them back
+ */
+ mii_addr = readl(&mac->mii_mgmt_addr);
+ mii_cmd = readl(&mac->mii_mgmt_cmd);
+
+ /* Stop the current operation */
+ writel(0, &mac->mii_mgmt_cmd);
+
+ /* Set up the register we need to read from on the correct PHY */
+ writel(ET_MAC_MII_ADDR(addr, reg), &mac->mii_mgmt_addr);
+
+ writel(0x1, &mac->mii_mgmt_cmd);
+
+ do {
+ udelay(50);
+ delay++;
+ mii_indicator = readl(&mac->mii_mgmt_indicator);
+ } while ((mii_indicator & ET_MAC_MGMT_WAIT) && delay < 50);
+
+ /* If we hit the max delay, we could not read the register */
+ if (delay == 50) {
+ dev_warn(&adapter->pdev->dev,
+ "reg 0x%08x could not be read\n", reg);
+ dev_warn(&adapter->pdev->dev, "status is 0x%08x\n",
+ mii_indicator);
+
+ status = -EIO;
+ goto out;
+ }
+
+ /* If we hit here we were able to read the register and we need to
+ * return the value to the caller
+ */
+ *value = readl(&mac->mii_mgmt_stat) & ET_MAC_MIIMGMT_STAT_PHYCRTL_MASK;
+
+out:
+ /* Stop the read operation */
+ writel(0, &mac->mii_mgmt_cmd);
+
+ /* set the registers we touched back to the state at which we entered
+ * this function
+ */
+ writel(mii_addr, &mac->mii_mgmt_addr);
+ writel(mii_cmd, &mac->mii_mgmt_cmd);
+
+ return status;
+}
+
+static int et131x_mii_read(struct et131x_adapter *adapter, u8 reg, u16 *value)
+{
+ struct phy_device *phydev = adapter->phydev;
+
+ if (!phydev)
+ return -EIO;
+
+ return et131x_phy_mii_read(adapter, phydev->addr, reg, value);
+}
+
+/* et131x_mii_write - Write to a PHY reg through the MII interface of the MAC
+ * @adapter: pointer to our private adapter structure
+ * @reg: the register to read
+ * @value: 16-bit value to write
+ */
+static int et131x_mii_write(struct et131x_adapter *adapter, u8 addr, u8 reg,
+ u16 value)
+{
+ struct mac_regs __iomem *mac = &adapter->regs->mac;
+ int status = 0;
+ u32 delay = 0;
+ u32 mii_addr;
+ u32 mii_cmd;
+ u32 mii_indicator;
+
+ /* Save a local copy of the registers we are dealing with so we can
+ * set them back
+ */
+ mii_addr = readl(&mac->mii_mgmt_addr);
+ mii_cmd = readl(&mac->mii_mgmt_cmd);
+
+ /* Stop the current operation */
+ writel(0, &mac->mii_mgmt_cmd);
+
+ /* Set up the register we need to write to on the correct PHY */
+ writel(ET_MAC_MII_ADDR(addr, reg), &mac->mii_mgmt_addr);
+
+ /* Add the value to write to the registers to the mac */
+ writel(value, &mac->mii_mgmt_ctrl);
+
+ do {
+ udelay(50);
+ delay++;
+ mii_indicator = readl(&mac->mii_mgmt_indicator);
+ } while ((mii_indicator & ET_MAC_MGMT_BUSY) && delay < 100);
+
+ /* If we hit the max delay, we could not write the register */
+ if (delay == 100) {
+ u16 tmp;
+
+ dev_warn(&adapter->pdev->dev,
+ "reg 0x%08x could not be written", reg);
+ dev_warn(&adapter->pdev->dev, "status is 0x%08x\n",
+ mii_indicator);
+ dev_warn(&adapter->pdev->dev, "command is 0x%08x\n",
+ readl(&mac->mii_mgmt_cmd));
+
+ et131x_mii_read(adapter, reg, &tmp);
+
+ status = -EIO;
+ }
+ /* Stop the write operation */
+ writel(0, &mac->mii_mgmt_cmd);
+
+ /* set the registers we touched back to the state at which we entered
+ * this function
+ */
+ writel(mii_addr, &mac->mii_mgmt_addr);
+ writel(mii_cmd, &mac->mii_mgmt_cmd);
+
+ return status;
+}
+
+static void et1310_phy_read_mii_bit(struct et131x_adapter *adapter,
+ u16 regnum,
+ u16 bitnum,
+ u8 *value)
+{
+ u16 reg;
+ u16 mask = 1 << bitnum;
+
+ /* Read the requested register */
+ et131x_mii_read(adapter, regnum, ®);
+
+ *value = (reg & mask) >> bitnum;
+}
+
+static void et1310_config_flow_control(struct et131x_adapter *adapter)
+{
+ struct phy_device *phydev = adapter->phydev;
+
+ if (phydev->duplex == DUPLEX_HALF) {
+ adapter->flow = FLOW_NONE;
+ } else {
+ char remote_pause, remote_async_pause;
+
+ et1310_phy_read_mii_bit(adapter, 5, 10, &remote_pause);
+ et1310_phy_read_mii_bit(adapter, 5, 11, &remote_async_pause);
+
+ if (remote_pause && remote_async_pause) {
+ adapter->flow = adapter->wanted_flow;
+ } else if (remote_pause && !remote_async_pause) {
+ if (adapter->wanted_flow == FLOW_BOTH)
+ adapter->flow = FLOW_BOTH;
+ else
+ adapter->flow = FLOW_NONE;
+ } else if (!remote_pause && !remote_async_pause) {
+ adapter->flow = FLOW_NONE;
+ } else {
+ if (adapter->wanted_flow == FLOW_BOTH)
+ adapter->flow = FLOW_RXONLY;
+ else
+ adapter->flow = FLOW_NONE;
+ }
+ }
+}
+
+/* et1310_update_macstat_host_counters - Update local copy of the statistics */
+static void et1310_update_macstat_host_counters(struct et131x_adapter *adapter)
+{
+ struct ce_stats *stats = &adapter->stats;
+ struct macstat_regs __iomem *macstat =
+ &adapter->regs->macstat;
+
+ stats->tx_collisions += readl(&macstat->tx_total_collisions);
+ stats->tx_first_collisions += readl(&macstat->tx_single_collisions);
+ stats->tx_deferred += readl(&macstat->tx_deferred);
+ stats->tx_excessive_collisions +=
+ readl(&macstat->tx_multiple_collisions);
+ stats->tx_late_collisions += readl(&macstat->tx_late_collisions);
+ stats->tx_underflows += readl(&macstat->tx_undersize_frames);
+ stats->tx_max_pkt_errs += readl(&macstat->tx_oversize_frames);
+
+ stats->rx_align_errs += readl(&macstat->rx_align_errs);
+ stats->rx_crc_errs += readl(&macstat->rx_code_errs);
+ stats->rcvd_pkts_dropped += readl(&macstat->rx_drops);
+ stats->rx_overflows += readl(&macstat->rx_oversize_packets);
+ stats->rx_code_violations += readl(&macstat->rx_fcs_errs);
+ stats->rx_length_errs += readl(&macstat->rx_frame_len_errs);
+ stats->rx_other_errs += readl(&macstat->rx_fragment_packets);
+}
+
+/* et1310_handle_macstat_interrupt
+ *
+ * One of the MACSTAT counters has wrapped. Update the local copy of
+ * the statistics held in the adapter structure, checking the "wrap"
+ * bit for each counter.
+ */
+static void et1310_handle_macstat_interrupt(struct et131x_adapter *adapter)
+{
+ u32 carry_reg1;
+ u32 carry_reg2;
+
+ /* Read the interrupt bits from the register(s). These are Clear On
+ * Write.
+ */
+ carry_reg1 = readl(&adapter->regs->macstat.carry_reg1);
+ carry_reg2 = readl(&adapter->regs->macstat.carry_reg2);
+
+ writel(carry_reg1, &adapter->regs->macstat.carry_reg1);
+ writel(carry_reg2, &adapter->regs->macstat.carry_reg2);
+
+ /* We need to do update the host copy of all the MAC_STAT counters.
+ * For each counter, check it's overflow bit. If the overflow bit is
+ * set, then increment the host version of the count by one complete
+ * revolution of the counter. This routine is called when the counter
+ * block indicates that one of the counters has wrapped.
+ */
+ if (carry_reg1 & (1 << 14))
+ adapter->stats.rx_code_violations += COUNTER_WRAP_16_BIT;
+ if (carry_reg1 & (1 << 8))
+ adapter->stats.rx_align_errs += COUNTER_WRAP_12_BIT;
+ if (carry_reg1 & (1 << 7))
+ adapter->stats.rx_length_errs += COUNTER_WRAP_16_BIT;
+ if (carry_reg1 & (1 << 2))
+ adapter->stats.rx_other_errs += COUNTER_WRAP_16_BIT;
+ if (carry_reg1 & (1 << 6))
+ adapter->stats.rx_crc_errs += COUNTER_WRAP_16_BIT;
+ if (carry_reg1 & (1 << 3))
+ adapter->stats.rx_overflows += COUNTER_WRAP_16_BIT;
+ if (carry_reg1 & (1 << 0))
+ adapter->stats.rcvd_pkts_dropped += COUNTER_WRAP_16_BIT;
+ if (carry_reg2 & (1 << 16))
+ adapter->stats.tx_max_pkt_errs += COUNTER_WRAP_12_BIT;
+ if (carry_reg2 & (1 << 15))
+ adapter->stats.tx_underflows += COUNTER_WRAP_12_BIT;
+ if (carry_reg2 & (1 << 6))
+ adapter->stats.tx_first_collisions += COUNTER_WRAP_12_BIT;
+ if (carry_reg2 & (1 << 8))
+ adapter->stats.tx_deferred += COUNTER_WRAP_12_BIT;
+ if (carry_reg2 & (1 << 5))
+ adapter->stats.tx_excessive_collisions += COUNTER_WRAP_12_BIT;
+ if (carry_reg2 & (1 << 4))
+ adapter->stats.tx_late_collisions += COUNTER_WRAP_12_BIT;
+ if (carry_reg2 & (1 << 2))
+ adapter->stats.tx_collisions += COUNTER_WRAP_12_BIT;
+}
+
+static int et131x_mdio_read(struct mii_bus *bus, int phy_addr, int reg)
+{
+ struct net_device *netdev = bus->priv;
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+ u16 value;
+ int ret;
+
+ ret = et131x_phy_mii_read(adapter, phy_addr, reg, &value);
+
+ if (ret < 0)
+ return ret;
+
+ return value;
+}
+
+static int et131x_mdio_write(struct mii_bus *bus, int phy_addr,
+ int reg, u16 value)
+{
+ struct net_device *netdev = bus->priv;
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ return et131x_mii_write(adapter, phy_addr, reg, value);
+}
+
+/* et1310_phy_power_switch - PHY power control
+ * @adapter: device to control
+ * @down: true for off/false for back on
+ *
+ * one hundred, ten, one thousand megs
+ * How would you like to have your LAN accessed
+ * Can't you see that this code processed
+ * Phy power, phy power..
+ */
+static void et1310_phy_power_switch(struct et131x_adapter *adapter, bool down)
+{
+ u16 data;
+ struct phy_device *phydev = adapter->phydev;
+
+ et131x_mii_read(adapter, MII_BMCR, &data);
+ data &= ~BMCR_PDOWN;
+ if (down)
+ data |= BMCR_PDOWN;
+ et131x_mii_write(adapter, phydev->addr, MII_BMCR, data);
+}
+
+/* et131x_xcvr_init - Init the phy if we are setting it into force mode */
+static void et131x_xcvr_init(struct et131x_adapter *adapter)
+{
+ u16 lcr2;
+ struct phy_device *phydev = adapter->phydev;
+
+ /* Set the LED behavior such that LED 1 indicates speed (off =
+ * 10Mbits, blink = 100Mbits, on = 1000Mbits) and LED 2 indicates
+ * link and activity (on for link, blink off for activity).
+ *
+ * NOTE: Some customizations have been added here for specific
+ * vendors; The LED behavior is now determined by vendor data in the
+ * EEPROM. However, the above description is the default.
+ */
+ if ((adapter->eeprom_data[1] & 0x4) == 0) {
+ et131x_mii_read(adapter, PHY_LED_2, &lcr2);
+
+ lcr2 &= (ET_LED2_LED_100TX | ET_LED2_LED_1000T);
+ lcr2 |= (LED_VAL_LINKON_ACTIVE << LED_LINK_SHIFT);
+
+ if ((adapter->eeprom_data[1] & 0x8) == 0)
+ lcr2 |= (LED_VAL_1000BT_100BTX << LED_TXRX_SHIFT);
+ else
+ lcr2 |= (LED_VAL_LINKON << LED_TXRX_SHIFT);
+
+ et131x_mii_write(adapter, phydev->addr, PHY_LED_2, lcr2);
+ }
+}
+
+/* et131x_configure_global_regs - configure JAGCore global regs
+ *
+ * Used to configure the global registers on the JAGCore
+ */
+static void et131x_configure_global_regs(struct et131x_adapter *adapter)
+{
+ struct global_regs __iomem *regs = &adapter->regs->global;
+
+ writel(0, ®s->rxq_start_addr);
+ writel(INTERNAL_MEM_SIZE - 1, ®s->txq_end_addr);
+
+ if (adapter->registry_jumbo_packet < 2048) {
+ /* Tx / RxDMA and Tx/Rx MAC interfaces have a 1k word
+ * block of RAM that the driver can split between Tx
+ * and Rx as it desires. Our default is to split it
+ * 50/50:
+ */
+ writel(PARM_RX_MEM_END_DEF, ®s->rxq_end_addr);
+ writel(PARM_RX_MEM_END_DEF + 1, ®s->txq_start_addr);
+ } else if (adapter->registry_jumbo_packet < 8192) {
+ /* For jumbo packets > 2k but < 8k, split 50-50. */
+ writel(INTERNAL_MEM_RX_OFFSET, ®s->rxq_end_addr);
+ writel(INTERNAL_MEM_RX_OFFSET + 1, ®s->txq_start_addr);
+ } else {
+ /* 9216 is the only packet size greater than 8k that
+ * is available. The Tx buffer has to be big enough
+ * for one whole packet on the Tx side. We'll make
+ * the Tx 9408, and give the rest to Rx
+ */
+ writel(0x01b3, ®s->rxq_end_addr);
+ writel(0x01b4, ®s->txq_start_addr);
+ }
+
+ /* Initialize the loopback register. Disable all loopbacks. */
+ writel(0, ®s->loopback);
+
+ /* MSI Register */
+ writel(0, ®s->msi_config);
+
+ /* By default, disable the watchdog timer. It will be enabled when
+ * a packet is queued.
+ */
+ writel(0, ®s->watchdog_timer);
+}
+
+/* et131x_config_rx_dma_regs - Start of Rx_DMA init sequence */
+static void et131x_config_rx_dma_regs(struct et131x_adapter *adapter)
+{
+ struct rxdma_regs __iomem *rx_dma = &adapter->regs->rxdma;
+ struct rx_ring *rx_local = &adapter->rx_ring;
+ struct fbr_desc *fbr_entry;
+ u32 entry;
+ u32 psr_num_des;
+ unsigned long flags;
+ u8 id;
+
+ /* Halt RXDMA to perform the reconfigure. */
+ et131x_rx_dma_disable(adapter);
+
+ /* Load the completion writeback physical address */
+ writel(upper_32_bits(rx_local->rx_status_bus), &rx_dma->dma_wb_base_hi);
+ writel(lower_32_bits(rx_local->rx_status_bus), &rx_dma->dma_wb_base_lo);
+
+ memset(rx_local->rx_status_block, 0, sizeof(struct rx_status_block));
+
+ /* Set the address and parameters of the packet status ring into the
+ * 1310's registers
+ */
+ writel(upper_32_bits(rx_local->ps_ring_physaddr), &rx_dma->psr_base_hi);
+ writel(lower_32_bits(rx_local->ps_ring_physaddr), &rx_dma->psr_base_lo);
+ writel(rx_local->psr_entries - 1, &rx_dma->psr_num_des);
+ writel(0, &rx_dma->psr_full_offset);
+
+ psr_num_des = readl(&rx_dma->psr_num_des) & ET_RXDMA_PSR_NUM_DES_MASK;
+ writel((psr_num_des * LO_MARK_PERCENT_FOR_PSR) / 100,
+ &rx_dma->psr_min_des);
+
+ spin_lock_irqsave(&adapter->rcv_lock, flags);
+
+ /* These local variables track the PSR in the adapter structure */
+ rx_local->local_psr_full = 0;
+
+ for (id = 0; id < NUM_FBRS; id++) {
+ u32 __iomem *num_des;
+ u32 __iomem *full_offset;
+ u32 __iomem *min_des;
+ u32 __iomem *base_hi;
+ u32 __iomem *base_lo;
+ struct fbr_lookup *fbr = rx_local->fbr[id];
+
+ if (id == 0) {
+ num_des = &rx_dma->fbr0_num_des;
+ full_offset = &rx_dma->fbr0_full_offset;
+ min_des = &rx_dma->fbr0_min_des;
+ base_hi = &rx_dma->fbr0_base_hi;
+ base_lo = &rx_dma->fbr0_base_lo;
+ } else {
+ num_des = &rx_dma->fbr1_num_des;
+ full_offset = &rx_dma->fbr1_full_offset;
+ min_des = &rx_dma->fbr1_min_des;
+ base_hi = &rx_dma->fbr1_base_hi;
+ base_lo = &rx_dma->fbr1_base_lo;
+ }
+
+ /* Now's the best time to initialize FBR contents */
+ fbr_entry = fbr->ring_virtaddr;
+ for (entry = 0; entry < fbr->num_entries; entry++) {
+ fbr_entry->addr_hi = fbr->bus_high[entry];
+ fbr_entry->addr_lo = fbr->bus_low[entry];
+ fbr_entry->word2 = entry;
+ fbr_entry++;
+ }
+
+ /* Set the address and parameters of Free buffer ring 1 and 0
+ * into the 1310's registers
+ */
+ writel(upper_32_bits(fbr->ring_physaddr), base_hi);
+ writel(lower_32_bits(fbr->ring_physaddr), base_lo);
+ writel(fbr->num_entries - 1, num_des);
+ writel(ET_DMA10_WRAP, full_offset);
+
+ /* This variable tracks the free buffer ring 1 full position,
+ * so it has to match the above.
+ */
+ fbr->local_full = ET_DMA10_WRAP;
+ writel(((fbr->num_entries * LO_MARK_PERCENT_FOR_RX) / 100) - 1,
+ min_des);
+ }
+
+ /* Program the number of packets we will receive before generating an
+ * interrupt.
+ * For version B silicon, this value gets updated once autoneg is
+ *complete.
+ */
+ writel(PARM_RX_NUM_BUFS_DEF, &rx_dma->num_pkt_done);
+
+ /* The "time_done" is not working correctly to coalesce interrupts
+ * after a given time period, but rather is giving us an interrupt
+ * regardless of whether we have received packets.
+ * This value gets updated once autoneg is complete.
+ */
+ writel(PARM_RX_TIME_INT_DEF, &rx_dma->max_pkt_time);
+
+ spin_unlock_irqrestore(&adapter->rcv_lock, flags);
+}
+
+/* et131x_config_tx_dma_regs - Set up the tx dma section of the JAGCore.
+ *
+ * Configure the transmit engine with the ring buffers we have created
+ * and prepare it for use.
+ */
+static void et131x_config_tx_dma_regs(struct et131x_adapter *adapter)
+{
+ struct txdma_regs __iomem *txdma = &adapter->regs->txdma;
+ struct tx_ring *tx_ring = &adapter->tx_ring;
+
+ /* Load the hardware with the start of the transmit descriptor ring. */
+ writel(upper_32_bits(tx_ring->tx_desc_ring_pa), &txdma->pr_base_hi);
+ writel(lower_32_bits(tx_ring->tx_desc_ring_pa), &txdma->pr_base_lo);
+
+ /* Initialise the transmit DMA engine */
+ writel(NUM_DESC_PER_RING_TX - 1, &txdma->pr_num_des);
+
+ /* Load the completion writeback physical address */
+ writel(upper_32_bits(tx_ring->tx_status_pa), &txdma->dma_wb_base_hi);
+ writel(lower_32_bits(tx_ring->tx_status_pa), &txdma->dma_wb_base_lo);
+
+ *tx_ring->tx_status = 0;
+
+ writel(0, &txdma->service_request);
+ tx_ring->send_idx = 0;
+}
+
+/* et131x_adapter_setup - Set the adapter up as per cassini+ documentation */
+static void et131x_adapter_setup(struct et131x_adapter *adapter)
+{
+ /* Configure the JAGCore */
+ et131x_configure_global_regs(adapter);
+
+ et1310_config_mac_regs1(adapter);
+
+ /* Configure the MMC registers */
+ /* All we need to do is initialize the Memory Control Register */
+ writel(ET_MMC_ENABLE, &adapter->regs->mmc.mmc_ctrl);
+
+ et1310_config_rxmac_regs(adapter);
+ et1310_config_txmac_regs(adapter);
+
+ et131x_config_rx_dma_regs(adapter);
+ et131x_config_tx_dma_regs(adapter);
+
+ et1310_config_macstat_regs(adapter);
+
+ et1310_phy_power_switch(adapter, 0);
+ et131x_xcvr_init(adapter);
+}
+
+/* et131x_soft_reset - Issue soft reset to the hardware, complete for ET1310 */
+static void et131x_soft_reset(struct et131x_adapter *adapter)
+{
+ u32 reg;
+
+ /* Disable MAC Core */
+ reg = ET_MAC_CFG1_SOFT_RESET | ET_MAC_CFG1_SIM_RESET |
+ ET_MAC_CFG1_RESET_RXMC | ET_MAC_CFG1_RESET_TXMC |
+ ET_MAC_CFG1_RESET_RXFUNC | ET_MAC_CFG1_RESET_TXFUNC;
+ writel(reg, &adapter->regs->mac.cfg1);
+
+ reg = ET_RESET_ALL;
+ writel(reg, &adapter->regs->global.sw_reset);
+
+ reg = ET_MAC_CFG1_RESET_RXMC | ET_MAC_CFG1_RESET_TXMC |
+ ET_MAC_CFG1_RESET_RXFUNC | ET_MAC_CFG1_RESET_TXFUNC;
+ writel(reg, &adapter->regs->mac.cfg1);
+ writel(0, &adapter->regs->mac.cfg1);
+}
+
+/* et131x_enable_interrupts - enable interrupt
+ *
+ * Enable the appropriate interrupts on the ET131x according to our
+ * configuration
+ */
+static void et131x_enable_interrupts(struct et131x_adapter *adapter)
+{
+ u32 mask;
+
+ /* Enable all global interrupts */
+ if (adapter->flow == FLOW_TXONLY || adapter->flow == FLOW_BOTH)
+ mask = INT_MASK_ENABLE;
+ else
+ mask = INT_MASK_ENABLE_NO_FLOW;
+
+ writel(mask, &adapter->regs->global.int_mask);
+}
+
+/* et131x_disable_interrupts - interrupt disable
+ *
+ * Block all interrupts from the et131x device at the device itself
+ */
+static void et131x_disable_interrupts(struct et131x_adapter *adapter)
+{
+ /* Disable all global interrupts */
+ writel(INT_MASK_DISABLE, &adapter->regs->global.int_mask);
+}
+
+/* et131x_tx_dma_disable - Stop of Tx_DMA on the ET1310 */
+static void et131x_tx_dma_disable(struct et131x_adapter *adapter)
+{
+ /* Setup the transmit dma configuration register */
+ writel(ET_TXDMA_CSR_HALT | ET_TXDMA_SNGL_EPKT,
+ &adapter->regs->txdma.csr);
+}
+
+/* et131x_enable_txrx - Enable tx/rx queues */
+static void et131x_enable_txrx(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ /* Enable the Tx and Rx DMA engines (if not already enabled) */
+ et131x_rx_dma_enable(adapter);
+ et131x_tx_dma_enable(adapter);
+
+ /* Enable device interrupts */
+ if (adapter->flags & FMP_ADAPTER_INTERRUPT_IN_USE)
+ et131x_enable_interrupts(adapter);
+
+ /* We're ready to move some data, so start the queue */
+ netif_start_queue(netdev);
+}
+
+/* et131x_disable_txrx - Disable tx/rx queues */
+static void et131x_disable_txrx(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ /* First thing is to stop the queue */
+ netif_stop_queue(netdev);
+
+ /* Stop the Tx and Rx DMA engines */
+ et131x_rx_dma_disable(adapter);
+ et131x_tx_dma_disable(adapter);
+
+ /* Disable device interrupts */
+ et131x_disable_interrupts(adapter);
+}
+
+/* et131x_init_send - Initialize send data structures */
+static void et131x_init_send(struct et131x_adapter *adapter)
+{
+ u32 ct;
+ struct tx_ring *tx_ring = &adapter->tx_ring;
+ struct tcb *tcb = tx_ring->tcb_ring;
+
+ tx_ring->tcb_qhead = tcb;
+
+ memset(tcb, 0, sizeof(struct tcb) * NUM_TCB);
+
+ /* Go through and set up each TCB */
+ for (ct = 0; ct++ < NUM_TCB; tcb++)
+ /* Set the link pointer in HW TCB to the next TCB in the
+ * chain
+ */
+ tcb->next = tcb + 1;
+
+ /* Set the tail pointer */
+ tcb--;
+ tx_ring->tcb_qtail = tcb;
+ tcb->next = NULL;
+ /* Curr send queue should now be empty */
+ tx_ring->send_head = NULL;
+ tx_ring->send_tail = NULL;
+}
+
+/* et1310_enable_phy_coma - called when network cable is unplugged
+ *
+ * driver receive an phy status change interrupt while in D0 and check that
+ * phy_status is down.
+ *
+ * -- gate off JAGCore;
+ * -- set gigE PHY in Coma mode
+ * -- wake on phy_interrupt; Perform software reset JAGCore,
+ * re-initialize jagcore and gigE PHY
+ *
+ * Add D0-ASPM-PhyLinkDown Support:
+ * -- while in D0, when there is a phy_interrupt indicating phy link
+ * down status, call the MPSetPhyComa routine to enter this active
+ * state power saving mode
+ * -- while in D0-ASPM-PhyLinkDown mode, when there is a phy_interrupt
+ * indicating linkup status, call the MPDisablePhyComa routine to
+ * restore JAGCore and gigE PHY
+ */
+static void et1310_enable_phy_coma(struct et131x_adapter *adapter)
+{
+ u32 pmcsr = readl(&adapter->regs->global.pm_csr);
+
+ /* Save the GbE PHY speed and duplex modes. Need to restore this
+ * when cable is plugged back in
+ */
+
+ /* Stop sending packets. */
+ adapter->flags |= FMP_ADAPTER_LOWER_POWER;
+
+ /* Wait for outstanding Receive packets */
+ et131x_disable_txrx(adapter->netdev);
+
+ /* Gate off JAGCore 3 clock domains */
+ pmcsr &= ~ET_PMCSR_INIT;
+ writel(pmcsr, &adapter->regs->global.pm_csr);
+
+ /* Program gigE PHY in to Coma mode */
+ pmcsr |= ET_PM_PHY_SW_COMA;
+ writel(pmcsr, &adapter->regs->global.pm_csr);
+}
+
+/* et1310_disable_phy_coma - Disable the Phy Coma Mode */
+static void et1310_disable_phy_coma(struct et131x_adapter *adapter)
+{
+ u32 pmcsr;
+
+ pmcsr = readl(&adapter->regs->global.pm_csr);
+
+ /* Disable phy_sw_coma register and re-enable JAGCore clocks */
+ pmcsr |= ET_PMCSR_INIT;
+ pmcsr &= ~ET_PM_PHY_SW_COMA;
+ writel(pmcsr, &adapter->regs->global.pm_csr);
+
+ /* Restore the GbE PHY speed and duplex modes;
+ * Reset JAGCore; re-configure and initialize JAGCore and gigE PHY
+ */
+
+ /* Re-initialize the send structures */
+ et131x_init_send(adapter);
+
+ /* Bring the device back to the state it was during init prior to
+ * autonegotiation being complete. This way, when we get the auto-neg
+ * complete interrupt, we can complete init by calling ConfigMacREGS2.
+ */
+ et131x_soft_reset(adapter);
+
+ /* setup et1310 as per the documentation ?? */
+ et131x_adapter_setup(adapter);
+
+ /* Allow Tx to restart */
+ adapter->flags &= ~FMP_ADAPTER_LOWER_POWER;
+
+ et131x_enable_txrx(adapter->netdev);
+}
+
+static inline u32 bump_free_buff_ring(u32 *free_buff_ring, u32 limit)
+{
+ u32 tmp_free_buff_ring = *free_buff_ring;
+
+ tmp_free_buff_ring++;
+ /* This works for all cases where limit < 1024. The 1023 case
+ * works because 1023++ is 1024 which means the if condition is not
+ * taken but the carry of the bit into the wrap bit toggles the wrap
+ * value correctly
+ */
+ if ((tmp_free_buff_ring & ET_DMA10_MASK) > limit) {
+ tmp_free_buff_ring &= ~ET_DMA10_MASK;
+ tmp_free_buff_ring ^= ET_DMA10_WRAP;
+ }
+ /* For the 1023 case */
+ tmp_free_buff_ring &= (ET_DMA10_MASK | ET_DMA10_WRAP);
+ *free_buff_ring = tmp_free_buff_ring;
+ return tmp_free_buff_ring;
+}
+
+/* et131x_rx_dma_memory_alloc
+ *
+ * Allocates Free buffer ring 1 for sure, free buffer ring 0 if required,
+ * and the Packet Status Ring.
+ */
+static int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
+{
+ u8 id;
+ u32 i, j;
+ u32 bufsize;
+ u32 psr_size;
+ u32 fbr_chunksize;
+ struct rx_ring *rx_ring = &adapter->rx_ring;
+ struct fbr_lookup *fbr;
+
+ /* Alloc memory for the lookup table */
+ rx_ring->fbr[0] = kmalloc(sizeof(*fbr), GFP_KERNEL);
+ if (rx_ring->fbr[0] == NULL)
+ return -ENOMEM;
+ rx_ring->fbr[1] = kmalloc(sizeof(*fbr), GFP_KERNEL);
+ if (rx_ring->fbr[1] == NULL)
+ return -ENOMEM;
+
+ /* The first thing we will do is configure the sizes of the buffer
+ * rings. These will change based on jumbo packet support. Larger
+ * jumbo packets increases the size of each entry in FBR0, and the
+ * number of entries in FBR0, while at the same time decreasing the
+ * number of entries in FBR1.
+ *
+ * FBR1 holds "large" frames, FBR0 holds "small" frames. If FBR1
+ * entries are huge in order to accommodate a "jumbo" frame, then it
+ * will have less entries. Conversely, FBR1 will now be relied upon
+ * to carry more "normal" frames, thus it's entry size also increases
+ * and the number of entries goes up too (since it now carries
+ * "small" + "regular" packets.
+ *
+ * In this scheme, we try to maintain 512 entries between the two
+ * rings. Also, FBR1 remains a constant size - when it's size doubles
+ * the number of entries halves. FBR0 increases in size, however.
+ */
+ if (adapter->registry_jumbo_packet < 2048) {
+ rx_ring->fbr[0]->buffsize = 256;
+ rx_ring->fbr[0]->num_entries = 512;
+ rx_ring->fbr[1]->buffsize = 2048;
+ rx_ring->fbr[1]->num_entries = 512;
+ } else if (adapter->registry_jumbo_packet < 4096) {
+ rx_ring->fbr[0]->buffsize = 512;
+ rx_ring->fbr[0]->num_entries = 1024;
+ rx_ring->fbr[1]->buffsize = 4096;
+ rx_ring->fbr[1]->num_entries = 512;
+ } else {
+ rx_ring->fbr[0]->buffsize = 1024;
+ rx_ring->fbr[0]->num_entries = 768;
+ rx_ring->fbr[1]->buffsize = 16384;
+ rx_ring->fbr[1]->num_entries = 128;
+ }
+
+ rx_ring->psr_entries = rx_ring->fbr[0]->num_entries +
+ rx_ring->fbr[1]->num_entries;
+
+ for (id = 0; id < NUM_FBRS; id++) {
+ fbr = rx_ring->fbr[id];
+ /* Allocate an area of memory for Free Buffer Ring */
+ bufsize = sizeof(struct fbr_desc) * fbr->num_entries;
+ fbr->ring_virtaddr = dma_alloc_coherent(&adapter->pdev->dev,
+ bufsize,
+ &fbr->ring_physaddr,
+ GFP_KERNEL);
+ if (!fbr->ring_virtaddr) {
+ dev_err(&adapter->pdev->dev,
+ "Cannot alloc memory for Free Buffer Ring %d\n",
+ id);
+ return -ENOMEM;
+ }
+ }
+
+ for (id = 0; id < NUM_FBRS; id++) {
+ fbr = rx_ring->fbr[id];
+ fbr_chunksize = (FBR_CHUNKS * fbr->buffsize);
+
+ for (i = 0; i < fbr->num_entries / FBR_CHUNKS; i++) {
+ dma_addr_t fbr_physaddr;
+
+ fbr->mem_virtaddrs[i] = dma_alloc_coherent(
+ &adapter->pdev->dev, fbr_chunksize,
+ &fbr->mem_physaddrs[i],
+ GFP_KERNEL);
+
+ if (!fbr->mem_virtaddrs[i]) {
+ dev_err(&adapter->pdev->dev,
+ "Could not alloc memory\n");
+ return -ENOMEM;
+ }
+
+ /* See NOTE in "Save Physical Address" comment above */
+ fbr_physaddr = fbr->mem_physaddrs[i];
+
+ for (j = 0; j < FBR_CHUNKS; j++) {
+ u32 k = (i * FBR_CHUNKS) + j;
+
+ /* Save the Virtual address of this index for
+ * quick access later
+ */
+ fbr->virt[k] = (u8 *)fbr->mem_virtaddrs[i] +
+ (j * fbr->buffsize);
+
+ /* now store the physical address in the
+ * descriptor so the device can access it
+ */
+ fbr->bus_high[k] = upper_32_bits(fbr_physaddr);
+ fbr->bus_low[k] = lower_32_bits(fbr_physaddr);
+ fbr_physaddr += fbr->buffsize;
+ }
+ }
+ }
+
+ /* Allocate an area of memory for FIFO of Packet Status ring entries */
+ psr_size = sizeof(struct pkt_stat_desc) * rx_ring->psr_entries;
+
+ rx_ring->ps_ring_virtaddr = dma_alloc_coherent(&adapter->pdev->dev,
+ psr_size,
+ &rx_ring->ps_ring_physaddr,
+ GFP_KERNEL);
+
+ if (!rx_ring->ps_ring_virtaddr) {
+ dev_err(&adapter->pdev->dev,
+ "Cannot alloc memory for Packet Status Ring\n");
+ return -ENOMEM;
+ }
+
+ /* NOTE : dma_alloc_coherent(), used above to alloc DMA regions,
+ * ALWAYS returns SAC (32-bit) addresses. If DAC (64-bit) addresses
+ * are ever returned, make sure the high part is retrieved here before
+ * storing the adjusted address.
+ */
+
+ /* Allocate an area of memory for writeback of status information */
+ rx_ring->rx_status_block = dma_alloc_coherent(&adapter->pdev->dev,
+ sizeof(struct rx_status_block),
+ &rx_ring->rx_status_bus,
+ GFP_KERNEL);
+ if (!rx_ring->rx_status_block) {
+ dev_err(&adapter->pdev->dev,
+ "Cannot alloc memory for Status Block\n");
+ return -ENOMEM;
+ }
+ rx_ring->num_rfd = NIC_DEFAULT_NUM_RFD;
+
+ /* The RFDs are going to be put on lists later on, so initialize the
+ * lists now.
+ */
+ INIT_LIST_HEAD(&rx_ring->recv_list);
+ return 0;
+}
+
+/* et131x_rx_dma_memory_free - Free all memory allocated within this module */
+static void et131x_rx_dma_memory_free(struct et131x_adapter *adapter)
+{
+ u8 id;
+ u32 ii;
+ u32 bufsize;
+ u32 psr_size;
+ struct rfd *rfd;
+ struct rx_ring *rx_ring = &adapter->rx_ring;
+ struct fbr_lookup *fbr;
+
+ /* Free RFDs and associated packet descriptors */
+ WARN_ON(rx_ring->num_ready_recv != rx_ring->num_rfd);
+
+ while (!list_empty(&rx_ring->recv_list)) {
+ rfd = list_entry(rx_ring->recv_list.next,
+ struct rfd, list_node);
+
+ list_del(&rfd->list_node);
+ rfd->skb = NULL;
+ kfree(rfd);
+ }
+
+ /* Free Free Buffer Rings */
+ for (id = 0; id < NUM_FBRS; id++) {
+ fbr = rx_ring->fbr[id];
+
+ if (!fbr || !fbr->ring_virtaddr)
+ continue;
+
+ /* First the packet memory */
+ for (ii = 0; ii < fbr->num_entries / FBR_CHUNKS; ii++) {
+ if (fbr->mem_virtaddrs[ii]) {
+ bufsize = fbr->buffsize * FBR_CHUNKS;
+
+ dma_free_coherent(&adapter->pdev->dev,
+ bufsize,
+ fbr->mem_virtaddrs[ii],
+ fbr->mem_physaddrs[ii]);
+
+ fbr->mem_virtaddrs[ii] = NULL;
+ }
+ }
+
+ bufsize = sizeof(struct fbr_desc) * fbr->num_entries;
+
+ dma_free_coherent(&adapter->pdev->dev,
+ bufsize,
+ fbr->ring_virtaddr,
+ fbr->ring_physaddr);
+
+ fbr->ring_virtaddr = NULL;
+ }
+
+ /* Free Packet Status Ring */
+ if (rx_ring->ps_ring_virtaddr) {
+ psr_size = sizeof(struct pkt_stat_desc) * rx_ring->psr_entries;
+
+ dma_free_coherent(&adapter->pdev->dev, psr_size,
+ rx_ring->ps_ring_virtaddr,
+ rx_ring->ps_ring_physaddr);
+
+ rx_ring->ps_ring_virtaddr = NULL;
+ }
+
+ /* Free area of memory for the writeback of status information */
+ if (rx_ring->rx_status_block) {
+ dma_free_coherent(&adapter->pdev->dev,
+ sizeof(struct rx_status_block),
+ rx_ring->rx_status_block,
+ rx_ring->rx_status_bus);
+ rx_ring->rx_status_block = NULL;
+ }
+
+ /* Free the FBR Lookup Table */
+ kfree(rx_ring->fbr[0]);
+ kfree(rx_ring->fbr[1]);
+
+ /* Reset Counters */
+ rx_ring->num_ready_recv = 0;
+}
+
+/* et131x_init_recv - Initialize receive data structures */
+static int et131x_init_recv(struct et131x_adapter *adapter)
+{
+ struct rfd *rfd;
+ u32 rfdct;
+ struct rx_ring *rx_ring = &adapter->rx_ring;
+
+ /* Setup each RFD */
+ for (rfdct = 0; rfdct < rx_ring->num_rfd; rfdct++) {
+ rfd = kzalloc(sizeof(*rfd), GFP_ATOMIC | GFP_DMA);
+ if (!rfd)
+ return -ENOMEM;
+
+ rfd->skb = NULL;
+
+ /* Add this RFD to the recv_list */
+ list_add_tail(&rfd->list_node, &rx_ring->recv_list);
+
+ /* Increment the available RFD's */
+ rx_ring->num_ready_recv++;
+ }
+
+ return 0;
+}
+
+/* et131x_set_rx_dma_timer - Set the heartbeat timer according to line rate */
+static void et131x_set_rx_dma_timer(struct et131x_adapter *adapter)
+{
+ struct phy_device *phydev = adapter->phydev;
+
+ /* For version B silicon, we do not use the RxDMA timer for 10 and 100
+ * Mbits/s line rates. We do not enable and RxDMA interrupt coalescing.
+ */
+ if ((phydev->speed == SPEED_100) || (phydev->speed == SPEED_10)) {
+ writel(0, &adapter->regs->rxdma.max_pkt_time);
+ writel(1, &adapter->regs->rxdma.num_pkt_done);
+ }
+}
+
+/* NICReturnRFD - Recycle a RFD and put it back onto the receive list
+ * @adapter: pointer to our adapter
+ * @rfd: pointer to the RFD
+ */
+static void nic_return_rfd(struct et131x_adapter *adapter, struct rfd *rfd)
+{
+ struct rx_ring *rx_local = &adapter->rx_ring;
+ struct rxdma_regs __iomem *rx_dma = &adapter->regs->rxdma;
+ u16 buff_index = rfd->bufferindex;
+ u8 ring_index = rfd->ringindex;
+ unsigned long flags;
+ struct fbr_lookup *fbr = rx_local->fbr[ring_index];
+
+ /* We don't use any of the OOB data besides status. Otherwise, we
+ * need to clean up OOB data
+ */
+ if (buff_index < fbr->num_entries) {
+ u32 free_buff_ring;
+ u32 __iomem *offset;
+ struct fbr_desc *next;
+
+ if (ring_index == 0)
+ offset = &rx_dma->fbr0_full_offset;
+ else
+ offset = &rx_dma->fbr1_full_offset;
+
+ next = (struct fbr_desc *)(fbr->ring_virtaddr) +
+ INDEX10(fbr->local_full);
+
+ /* Handle the Free Buffer Ring advancement here. Write
+ * the PA / Buffer Index for the returned buffer into
+ * the oldest (next to be freed)FBR entry
+ */
+ next->addr_hi = fbr->bus_high[buff_index];
+ next->addr_lo = fbr->bus_low[buff_index];
+ next->word2 = buff_index;
+
+ free_buff_ring = bump_free_buff_ring(&fbr->local_full,
+ fbr->num_entries - 1);
+ writel(free_buff_ring, offset);
+ } else {
+ dev_err(&adapter->pdev->dev,
+ "%s illegal Buffer Index returned\n", __func__);
+ }
+
+ /* The processing on this RFD is done, so put it back on the tail of
+ * our list
+ */
+ spin_lock_irqsave(&adapter->rcv_lock, flags);
+ list_add_tail(&rfd->list_node, &rx_local->recv_list);
+ rx_local->num_ready_recv++;
+ spin_unlock_irqrestore(&adapter->rcv_lock, flags);
+
+ WARN_ON(rx_local->num_ready_recv > rx_local->num_rfd);
+}
+
+/* nic_rx_pkts - Checks the hardware for available packets
+ *
+ * Returns rfd, a pointer to our MPRFD.
+ *
+ * Checks the hardware for available packets, using completion ring
+ * If packets are available, it gets an RFD from the recv_list, attaches
+ * the packet to it, puts the RFD in the RecvPendList, and also returns
+ * the pointer to the RFD.
+ */
+static struct rfd *nic_rx_pkts(struct et131x_adapter *adapter)
+{
+ struct rx_ring *rx_local = &adapter->rx_ring;
+ struct rx_status_block *status;
+ struct pkt_stat_desc *psr;
+ struct rfd *rfd;
+ unsigned long flags;
+ struct list_head *element;
+ u8 ring_index;
+ u16 buff_index;
+ u32 len;
+ u32 word0;
+ u32 word1;
+ struct sk_buff *skb;
+ struct fbr_lookup *fbr;
+
+ /* RX Status block is written by the DMA engine prior to every
+ * interrupt. It contains the next to be used entry in the Packet
+ * Status Ring, and also the two Free Buffer rings.
+ */
+ status = rx_local->rx_status_block;
+ word1 = status->word1 >> 16; /* Get the useful bits */
+
+ /* Check the PSR and wrap bits do not match */
+ if ((word1 & 0x1FFF) == (rx_local->local_psr_full & 0x1FFF))
+ return NULL; /* Looks like this ring is not updated yet */
+
+ /* The packet status ring indicates that data is available. */
+ psr = (struct pkt_stat_desc *)(rx_local->ps_ring_virtaddr) +
+ (rx_local->local_psr_full & 0xFFF);
+
+ /* Grab any information that is required once the PSR is advanced,
+ * since we can no longer rely on the memory being accurate
+ */
+ len = psr->word1 & 0xFFFF;
+ ring_index = (psr->word1 >> 26) & 0x03;
+ fbr = rx_local->fbr[ring_index];
+ buff_index = (psr->word1 >> 16) & 0x3FF;
+ word0 = psr->word0;
+
+ /* Indicate that we have used this PSR entry. */
+ /* FIXME wrap 12 */
+ add_12bit(&rx_local->local_psr_full, 1);
+ if ((rx_local->local_psr_full & 0xFFF) > rx_local->psr_entries - 1) {
+ /* Clear psr full and toggle the wrap bit */
+ rx_local->local_psr_full &= ~0xFFF;
+ rx_local->local_psr_full ^= 0x1000;
+ }
+
+ writel(rx_local->local_psr_full, &adapter->regs->rxdma.psr_full_offset);
+
+ if (ring_index > 1 || buff_index > fbr->num_entries - 1) {
+ /* Illegal buffer or ring index cannot be used by S/W*/
+ dev_err(&adapter->pdev->dev,
+ "NICRxPkts PSR Entry %d indicates length of %d and/or bad bi(%d)\n",
+ rx_local->local_psr_full & 0xFFF, len, buff_index);
+ return NULL;
+ }
+
+ /* Get and fill the RFD. */
+ spin_lock_irqsave(&adapter->rcv_lock, flags);
+
+ element = rx_local->recv_list.next;
+ rfd = list_entry(element, struct rfd, list_node);
+
+ if (!rfd) {
+ spin_unlock_irqrestore(&adapter->rcv_lock, flags);
+ return NULL;
+ }
+
+ list_del(&rfd->list_node);
+ rx_local->num_ready_recv--;
+
+ spin_unlock_irqrestore(&adapter->rcv_lock, flags);
+
+ rfd->bufferindex = buff_index;
+ rfd->ringindex = ring_index;
+
+ /* In V1 silicon, there is a bug which screws up filtering of runt
+ * packets. Therefore runt packet filtering is disabled in the MAC and
+ * the packets are dropped here. They are also counted here.
+ */
+ if (len < (NIC_MIN_PACKET_SIZE + 4)) {
+ adapter->stats.rx_other_errs++;
+ rfd->len = 0;
+ goto out;
+ }
+
+ if ((word0 & ALCATEL_MULTICAST_PKT) && !(word0 & ALCATEL_BROADCAST_PKT))
+ adapter->stats.multicast_pkts_rcvd++;
+
+ rfd->len = len;
+
+ skb = dev_alloc_skb(rfd->len + 2);
+ if (!skb) {
+ dev_err(&adapter->pdev->dev, "Couldn't alloc an SKB for Rx\n");
+ return NULL;
+ }
+
+ adapter->netdev->stats.rx_bytes += rfd->len;
+
+ memcpy(skb_put(skb, rfd->len), fbr->virt[buff_index], rfd->len);
+
+ skb->protocol = eth_type_trans(skb, adapter->netdev);
+ skb->ip_summed = CHECKSUM_NONE;
+ netif_receive_skb(skb);
+
+out:
+ nic_return_rfd(adapter, rfd);
+ return rfd;
+}
+
+/* et131x_handle_recv_pkts - Interrupt handler for receive processing
+ *
+ * Assumption, Rcv spinlock has been acquired.
+ */
+static int et131x_handle_recv_pkts(struct et131x_adapter *adapter, int budget)
+{
+ struct rfd *rfd = NULL;
+ int count = 0;
+ int limit = budget;
+ bool done = true;
+ struct rx_ring *rx_ring = &adapter->rx_ring;
+
+ if (budget > MAX_PACKETS_HANDLED)
+ limit = MAX_PACKETS_HANDLED;
+
+ /* Process up to available RFD's */
+ while (count < limit) {
+ if (list_empty(&rx_ring->recv_list)) {
+ WARN_ON(rx_ring->num_ready_recv != 0);
+ done = false;
+ break;
+ }
+
+ rfd = nic_rx_pkts(adapter);
+
+ if (rfd == NULL)
+ break;
+
+ /* Do not receive any packets until a filter has been set.
+ * Do not receive any packets until we have link.
+ * If length is zero, return the RFD in order to advance the
+ * Free buffer ring.
+ */
+ if (!adapter->packet_filter ||
+ !netif_carrier_ok(adapter->netdev) ||
+ rfd->len == 0)
+ continue;
+
+ /* Increment the number of packets we received */
+ adapter->netdev->stats.rx_packets++;
+
+ /* Set the status on the packet, either resources or success */
+ if (rx_ring->num_ready_recv < RFD_LOW_WATER_MARK)
+ dev_warn(&adapter->pdev->dev, "RFD's are running out\n");
+
+ count++;
+ }
+
+ if (count == limit || !done) {
+ rx_ring->unfinished_receives = true;
+ writel(PARM_TX_TIME_INT_DEF * NANO_IN_A_MICRO,
+ &adapter->regs->global.watchdog_timer);
+ } else {
+ /* Watchdog timer will disable itself if appropriate. */
+ rx_ring->unfinished_receives = false;
+ }
+
+ return count;
+}
+
+/* et131x_tx_dma_memory_alloc
+ *
+ * Allocates memory that will be visible both to the device and to the CPU.
+ * The OS will pass us packets, pointers to which we will insert in the Tx
+ * Descriptor queue. The device will read this queue to find the packets in
+ * memory. The device will update the "status" in memory each time it xmits a
+ * packet.
+ */
+static int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter)
+{
+ int desc_size = 0;
+ struct tx_ring *tx_ring = &adapter->tx_ring;
+
+ /* Allocate memory for the TCB's (Transmit Control Block) */
+ tx_ring->tcb_ring = kcalloc(NUM_TCB, sizeof(struct tcb),
+ GFP_ATOMIC | GFP_DMA);
+ if (!tx_ring->tcb_ring)
+ return -ENOMEM;
+
+ desc_size = (sizeof(struct tx_desc) * NUM_DESC_PER_RING_TX);
+ tx_ring->tx_desc_ring = dma_alloc_coherent(&adapter->pdev->dev,
+ desc_size,
+ &tx_ring->tx_desc_ring_pa,
+ GFP_KERNEL);
+ if (!tx_ring->tx_desc_ring) {
+ dev_err(&adapter->pdev->dev,
+ "Cannot alloc memory for Tx Ring\n");
+ return -ENOMEM;
+ }
+
+ /* Save physical address
+ *
+ * NOTE: dma_alloc_coherent(), used above to alloc DMA regions,
+ * ALWAYS returns SAC (32-bit) addresses. If DAC (64-bit) addresses
+ * are ever returned, make sure the high part is retrieved here before
+ * storing the adjusted address.
+ */
+ /* Allocate memory for the Tx status block */
+ tx_ring->tx_status = dma_alloc_coherent(&adapter->pdev->dev,
+ sizeof(u32),
+ &tx_ring->tx_status_pa,
+ GFP_KERNEL);
+ if (!tx_ring->tx_status_pa) {
+ dev_err(&adapter->pdev->dev,
+ "Cannot alloc memory for Tx status block\n");
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+/* et131x_tx_dma_memory_free - Free all memory allocated within this module */
+static void et131x_tx_dma_memory_free(struct et131x_adapter *adapter)
+{
+ int desc_size = 0;
+ struct tx_ring *tx_ring = &adapter->tx_ring;
+
+ if (tx_ring->tx_desc_ring) {
+ /* Free memory relating to Tx rings here */
+ desc_size = (sizeof(struct tx_desc) * NUM_DESC_PER_RING_TX);
+ dma_free_coherent(&adapter->pdev->dev,
+ desc_size,
+ tx_ring->tx_desc_ring,
+ tx_ring->tx_desc_ring_pa);
+ tx_ring->tx_desc_ring = NULL;
+ }
+
+ /* Free memory for the Tx status block */
+ if (tx_ring->tx_status) {
+ dma_free_coherent(&adapter->pdev->dev,
+ sizeof(u32),
+ tx_ring->tx_status,
+ tx_ring->tx_status_pa);
+
+ tx_ring->tx_status = NULL;
+ }
+ /* Free the memory for the tcb structures */
+ kfree(tx_ring->tcb_ring);
+}
+
+/* nic_send_packet - NIC specific send handler for version B silicon.
+ * @adapter: pointer to our adapter
+ * @tcb: pointer to struct tcb
+ */
+static int nic_send_packet(struct et131x_adapter *adapter, struct tcb *tcb)
+{
+ u32 i;
+ struct tx_desc desc[24]; /* 24 x 16 byte */
+ u32 frag = 0;
+ u32 thiscopy, remainder;
+ struct sk_buff *skb = tcb->skb;
+ u32 nr_frags = skb_shinfo(skb)->nr_frags + 1;
+ struct skb_frag_struct *frags = &skb_shinfo(skb)->frags[0];
+ struct phy_device *phydev = adapter->phydev;
+ dma_addr_t dma_addr;
+ struct tx_ring *tx_ring = &adapter->tx_ring;
+
+ /* Part of the optimizations of this send routine restrict us to
+ * sending 24 fragments at a pass. In practice we should never see
+ * more than 5 fragments.
+ *
+ * NOTE: The older version of this function (below) can handle any
+ * number of fragments. If needed, we can call this function,
+ * although it is less efficient.
+ */
+
+ /* nr_frags should be no more than 18. */
+ BUILD_BUG_ON(MAX_SKB_FRAGS + 1 > 23);
+
+ memset(desc, 0, sizeof(struct tx_desc) * (nr_frags + 1));
+
+ for (i = 0; i < nr_frags; i++) {
+ /* If there is something in this element, lets get a
+ * descriptor from the ring and get the necessary data
+ */
+ if (i == 0) {
+ /* If the fragments are smaller than a standard MTU,
+ * then map them to a single descriptor in the Tx
+ * Desc ring. However, if they're larger, as is
+ * possible with support for jumbo packets, then
+ * split them each across 2 descriptors.
+ *
+ * This will work until we determine why the hardware
+ * doesn't seem to like large fragments.
+ */
+ if (skb_headlen(skb) <= 1514) {
+ /* Low 16bits are length, high is vlan and
+ * unused currently so zero
+ */
+ desc[frag].len_vlan = skb_headlen(skb);
+ dma_addr = dma_map_single(&adapter->pdev->dev,
+ skb->data,
+ skb_headlen(skb),
+ DMA_TO_DEVICE);
+ desc[frag].addr_lo = lower_32_bits(dma_addr);
+ desc[frag].addr_hi = upper_32_bits(dma_addr);
+ frag++;
+ } else {
+ desc[frag].len_vlan = skb_headlen(skb) / 2;
+ dma_addr = dma_map_single(&adapter->pdev->dev,
+ skb->data,
+ (skb_headlen(skb) / 2),
+ DMA_TO_DEVICE);
+ desc[frag].addr_lo = lower_32_bits(dma_addr);
+ desc[frag].addr_hi = upper_32_bits(dma_addr);
+ frag++;
+
+ desc[frag].len_vlan = skb_headlen(skb) / 2;
+ dma_addr = dma_map_single(&adapter->pdev->dev,
+ skb->data +
+ (skb_headlen(skb) / 2),
+ (skb_headlen(skb) / 2),
+ DMA_TO_DEVICE);
+ desc[frag].addr_lo = lower_32_bits(dma_addr);
+ desc[frag].addr_hi = upper_32_bits(dma_addr);
+ frag++;
+ }
+ } else {
+ desc[frag].len_vlan = frags[i - 1].size;
+ dma_addr = skb_frag_dma_map(&adapter->pdev->dev,
+ &frags[i - 1],
+ 0,
+ frags[i - 1].size,
+ DMA_TO_DEVICE);
+ desc[frag].addr_lo = lower_32_bits(dma_addr);
+ desc[frag].addr_hi = upper_32_bits(dma_addr);
+ frag++;
+ }
+ }
+
+ if (phydev && phydev->speed == SPEED_1000) {
+ if (++tx_ring->since_irq == PARM_TX_NUM_BUFS_DEF) {
+ /* Last element & Interrupt flag */
+ desc[frag - 1].flags =
+ TXDESC_FLAG_INTPROC | TXDESC_FLAG_LASTPKT;
+ tx_ring->since_irq = 0;
+ } else { /* Last element */
+ desc[frag - 1].flags = TXDESC_FLAG_LASTPKT;
+ }
+ } else {
+ desc[frag - 1].flags =
+ TXDESC_FLAG_INTPROC | TXDESC_FLAG_LASTPKT;
+ }
+
+ desc[0].flags |= TXDESC_FLAG_FIRSTPKT;
+
+ tcb->index_start = tx_ring->send_idx;
+ tcb->stale = 0;
+
+ thiscopy = NUM_DESC_PER_RING_TX - INDEX10(tx_ring->send_idx);
+
+ if (thiscopy >= frag) {
+ remainder = 0;
+ thiscopy = frag;
+ } else {
+ remainder = frag - thiscopy;
+ }
+
+ memcpy(tx_ring->tx_desc_ring + INDEX10(tx_ring->send_idx),
+ desc,
+ sizeof(struct tx_desc) * thiscopy);
+
+ add_10bit(&tx_ring->send_idx, thiscopy);
+
+ if (INDEX10(tx_ring->send_idx) == 0 ||
+ INDEX10(tx_ring->send_idx) == NUM_DESC_PER_RING_TX) {
+ tx_ring->send_idx &= ~ET_DMA10_MASK;
+ tx_ring->send_idx ^= ET_DMA10_WRAP;
+ }
+
+ if (remainder) {
+ memcpy(tx_ring->tx_desc_ring,
+ desc + thiscopy,
+ sizeof(struct tx_desc) * remainder);
+
+ add_10bit(&tx_ring->send_idx, remainder);
+ }
+
+ if (INDEX10(tx_ring->send_idx) == 0) {
+ if (tx_ring->send_idx)
+ tcb->index = NUM_DESC_PER_RING_TX - 1;
+ else
+ tcb->index = ET_DMA10_WRAP|(NUM_DESC_PER_RING_TX - 1);
+ } else {
+ tcb->index = tx_ring->send_idx - 1;
+ }
+
+ spin_lock(&adapter->tcb_send_qlock);
+
+ if (tx_ring->send_tail)
+ tx_ring->send_tail->next = tcb;
+ else
+ tx_ring->send_head = tcb;
+
+ tx_ring->send_tail = tcb;
+
+ WARN_ON(tcb->next != NULL);
+
+ tx_ring->used++;
+
+ spin_unlock(&adapter->tcb_send_qlock);
+
+ /* Write the new write pointer back to the device. */
+ writel(tx_ring->send_idx, &adapter->regs->txdma.service_request);
+
+ /* For Gig only, we use Tx Interrupt coalescing. Enable the software
+ * timer to wake us up if this packet isn't followed by N more.
+ */
+ if (phydev && phydev->speed == SPEED_1000) {
+ writel(PARM_TX_TIME_INT_DEF * NANO_IN_A_MICRO,
+ &adapter->regs->global.watchdog_timer);
+ }
+ return 0;
+}
+
+/* send_packet - Do the work to send a packet
+ *
+ * Assumption: Send spinlock has been acquired
+ */
+static int send_packet(struct sk_buff *skb, struct et131x_adapter *adapter)
+{
+ int status;
+ struct tcb *tcb;
+ unsigned long flags;
+ struct tx_ring *tx_ring = &adapter->tx_ring;
+
+ /* All packets must have at least a MAC address and a protocol type */
+ if (skb->len < ETH_HLEN)
+ return -EIO;
+
+ /* Get a TCB for this packet */
+ spin_lock_irqsave(&adapter->tcb_ready_qlock, flags);
+
+ tcb = tx_ring->tcb_qhead;
+
+ if (tcb == NULL) {
+ spin_unlock_irqrestore(&adapter->tcb_ready_qlock, flags);
+ return -ENOMEM;
+ }
+
+ tx_ring->tcb_qhead = tcb->next;
+
+ if (tx_ring->tcb_qhead == NULL)
+ tx_ring->tcb_qtail = NULL;
+
+ spin_unlock_irqrestore(&adapter->tcb_ready_qlock, flags);
+
+ tcb->skb = skb;
+ tcb->next = NULL;
+
+ /* Call the NIC specific send handler. */
+ status = nic_send_packet(adapter, tcb);
+
+ if (status != 0) {
+ spin_lock_irqsave(&adapter->tcb_ready_qlock, flags);
+
+ if (tx_ring->tcb_qtail)
+ tx_ring->tcb_qtail->next = tcb;
+ else
+ /* Apparently ready Q is empty. */
+ tx_ring->tcb_qhead = tcb;
+
+ tx_ring->tcb_qtail = tcb;
+ spin_unlock_irqrestore(&adapter->tcb_ready_qlock, flags);
+ return status;
+ }
+ WARN_ON(tx_ring->used > NUM_TCB);
+ return 0;
+}
+
+/* free_send_packet - Recycle a struct tcb
+ * @adapter: pointer to our adapter
+ * @tcb: pointer to struct tcb
+ *
+ * Complete the packet if necessary
+ * Assumption - Send spinlock has been acquired
+ */
+static inline void free_send_packet(struct et131x_adapter *adapter,
+ struct tcb *tcb)
+{
+ unsigned long flags;
+ struct tx_desc *desc = NULL;
+ struct net_device_stats *stats = &adapter->netdev->stats;
+ struct tx_ring *tx_ring = &adapter->tx_ring;
+ u64 dma_addr;
+
+ if (tcb->skb) {
+ stats->tx_bytes += tcb->skb->len;
+
+ /* Iterate through the TX descriptors on the ring
+ * corresponding to this packet and umap the fragments
+ * they point to
+ */
+ do {
+ desc = tx_ring->tx_desc_ring +
+ INDEX10(tcb->index_start);
+
+ dma_addr = desc->addr_lo;
+ dma_addr |= (u64)desc->addr_hi << 32;
+
+ dma_unmap_single(&adapter->pdev->dev,
+ dma_addr,
+ desc->len_vlan, DMA_TO_DEVICE);
+
+ add_10bit(&tcb->index_start, 1);
+ if (INDEX10(tcb->index_start) >=
+ NUM_DESC_PER_RING_TX) {
+ tcb->index_start &= ~ET_DMA10_MASK;
+ tcb->index_start ^= ET_DMA10_WRAP;
+ }
+ } while (desc != tx_ring->tx_desc_ring + INDEX10(tcb->index));
+
+ dev_kfree_skb_any(tcb->skb);
+ }
+
+ memset(tcb, 0, sizeof(struct tcb));
+
+ /* Add the TCB to the Ready Q */
+ spin_lock_irqsave(&adapter->tcb_ready_qlock, flags);
+
+ stats->tx_packets++;
+
+ if (tx_ring->tcb_qtail)
+ tx_ring->tcb_qtail->next = tcb;
+ else
+ /* Apparently ready Q is empty. */
+ tx_ring->tcb_qhead = tcb;
+
+ tx_ring->tcb_qtail = tcb;
+
+ spin_unlock_irqrestore(&adapter->tcb_ready_qlock, flags);
+ WARN_ON(tx_ring->used < 0);
+}
+
+/* et131x_free_busy_send_packets - Free and complete the stopped active sends
+ *
+ * Assumption - Send spinlock has been acquired
+ */
+static void et131x_free_busy_send_packets(struct et131x_adapter *adapter)
+{
+ struct tcb *tcb;
+ unsigned long flags;
+ u32 freed = 0;
+ struct tx_ring *tx_ring = &adapter->tx_ring;
+
+ /* Any packets being sent? Check the first TCB on the send list */
+ spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
+
+ tcb = tx_ring->send_head;
+
+ while (tcb != NULL && freed < NUM_TCB) {
+ struct tcb *next = tcb->next;
+
+ tx_ring->send_head = next;
+
+ if (next == NULL)
+ tx_ring->send_tail = NULL;
+
+ tx_ring->used--;
+
+ spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
+
+ freed++;
+ free_send_packet(adapter, tcb);
+
+ spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
+
+ tcb = tx_ring->send_head;
+ }
+
+ WARN_ON(freed == NUM_TCB);
+
+ spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
+
+ tx_ring->used = 0;
+}
+
+/* et131x_handle_send_pkts - Interrupt handler for sending processing
+ *
+ * Re-claim the send resources, complete sends and get more to send from
+ * the send wait queue.
+ *
+ * Assumption - Send spinlock has been acquired
+ */
+static void et131x_handle_send_pkts(struct et131x_adapter *adapter)
+{
+ unsigned long flags;
+ u32 serviced;
+ struct tcb *tcb;
+ u32 index;
+ struct tx_ring *tx_ring = &adapter->tx_ring;
+
+ serviced = readl(&adapter->regs->txdma.new_service_complete);
+ index = INDEX10(serviced);
+
+ /* Has the ring wrapped? Process any descriptors that do not have
+ * the same "wrap" indicator as the current completion indicator
+ */
+ spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
+
+ tcb = tx_ring->send_head;
+
+ while (tcb &&
+ ((serviced ^ tcb->index) & ET_DMA10_WRAP) &&
+ index < INDEX10(tcb->index)) {
+ tx_ring->used--;
+ tx_ring->send_head = tcb->next;
+ if (tcb->next == NULL)
+ tx_ring->send_tail = NULL;
+
+ spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
+ free_send_packet(adapter, tcb);
+ spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
+
+ /* Goto the next packet */
+ tcb = tx_ring->send_head;
+ }
+ while (tcb &&
+ !((serviced ^ tcb->index) & ET_DMA10_WRAP) &&
+ index > (tcb->index & ET_DMA10_MASK)) {
+ tx_ring->used--;
+ tx_ring->send_head = tcb->next;
+ if (tcb->next == NULL)
+ tx_ring->send_tail = NULL;
+
+ spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
+ free_send_packet(adapter, tcb);
+ spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
+
+ /* Goto the next packet */
+ tcb = tx_ring->send_head;
+ }
+
+ /* Wake up the queue when we hit a low-water mark */
+ if (tx_ring->used <= NUM_TCB / 3)
+ netif_wake_queue(adapter->netdev);
+
+ spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
+}
+
+static int et131x_get_settings(struct net_device *netdev,
+ struct ethtool_cmd *cmd)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ return phy_ethtool_gset(adapter->phydev, cmd);
+}
+
+static int et131x_set_settings(struct net_device *netdev,
+ struct ethtool_cmd *cmd)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ return phy_ethtool_sset(adapter->phydev, cmd);
+}
+
+static int et131x_get_regs_len(struct net_device *netdev)
+{
+#define ET131X_REGS_LEN 256
+ return ET131X_REGS_LEN * sizeof(u32);
+}
+
+static void et131x_get_regs(struct net_device *netdev,
+ struct ethtool_regs *regs, void *regs_data)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+ struct address_map __iomem *aregs = adapter->regs;
+ u32 *regs_buff = regs_data;
+ u32 num = 0;
+ u16 tmp;
+
+ memset(regs_data, 0, et131x_get_regs_len(netdev));
+
+ regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
+ adapter->pdev->device;
+
+ /* PHY regs */
+ et131x_mii_read(adapter, MII_BMCR, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, MII_BMSR, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, MII_PHYSID1, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, MII_PHYSID2, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, MII_ADVERTISE, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, MII_LPA, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, MII_EXPANSION, &tmp);
+ regs_buff[num++] = tmp;
+ /* Autoneg next page transmit reg */
+ et131x_mii_read(adapter, 0x07, &tmp);
+ regs_buff[num++] = tmp;
+ /* Link partner next page reg */
+ et131x_mii_read(adapter, 0x08, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, MII_CTRL1000, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, MII_STAT1000, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, 0x0b, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, 0x0c, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, MII_MMD_CTRL, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, MII_MMD_DATA, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, MII_ESTATUS, &tmp);
+ regs_buff[num++] = tmp;
+
+ et131x_mii_read(adapter, PHY_INDEX_REG, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, PHY_DATA_REG, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, PHY_LOOPBACK_CONTROL, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, PHY_LOOPBACK_CONTROL + 1, &tmp);
+ regs_buff[num++] = tmp;
+
+ et131x_mii_read(adapter, PHY_REGISTER_MGMT_CONTROL, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, PHY_CONFIG, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, PHY_PHY_CONTROL, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, PHY_INTERRUPT_MASK, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, PHY_INTERRUPT_STATUS, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, PHY_PHY_STATUS, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, PHY_LED_1, &tmp);
+ regs_buff[num++] = tmp;
+ et131x_mii_read(adapter, PHY_LED_2, &tmp);
+ regs_buff[num++] = tmp;
+
+ /* Global regs */
+ regs_buff[num++] = readl(&aregs->global.txq_start_addr);
+ regs_buff[num++] = readl(&aregs->global.txq_end_addr);
+ regs_buff[num++] = readl(&aregs->global.rxq_start_addr);
+ regs_buff[num++] = readl(&aregs->global.rxq_end_addr);
+ regs_buff[num++] = readl(&aregs->global.pm_csr);
+ regs_buff[num++] = adapter->stats.interrupt_status;
+ regs_buff[num++] = readl(&aregs->global.int_mask);
+ regs_buff[num++] = readl(&aregs->global.int_alias_clr_en);
+ regs_buff[num++] = readl(&aregs->global.int_status_alias);
+ regs_buff[num++] = readl(&aregs->global.sw_reset);
+ regs_buff[num++] = readl(&aregs->global.slv_timer);
+ regs_buff[num++] = readl(&aregs->global.msi_config);
+ regs_buff[num++] = readl(&aregs->global.loopback);
+ regs_buff[num++] = readl(&aregs->global.watchdog_timer);
+
+ /* TXDMA regs */
+ regs_buff[num++] = readl(&aregs->txdma.csr);
+ regs_buff[num++] = readl(&aregs->txdma.pr_base_hi);
+ regs_buff[num++] = readl(&aregs->txdma.pr_base_lo);
+ regs_buff[num++] = readl(&aregs->txdma.pr_num_des);
+ regs_buff[num++] = readl(&aregs->txdma.txq_wr_addr);
+ regs_buff[num++] = readl(&aregs->txdma.txq_wr_addr_ext);
+ regs_buff[num++] = readl(&aregs->txdma.txq_rd_addr);
+ regs_buff[num++] = readl(&aregs->txdma.dma_wb_base_hi);
+ regs_buff[num++] = readl(&aregs->txdma.dma_wb_base_lo);
+ regs_buff[num++] = readl(&aregs->txdma.service_request);
+ regs_buff[num++] = readl(&aregs->txdma.service_complete);
+ regs_buff[num++] = readl(&aregs->txdma.cache_rd_index);
+ regs_buff[num++] = readl(&aregs->txdma.cache_wr_index);
+ regs_buff[num++] = readl(&aregs->txdma.tx_dma_error);
+ regs_buff[num++] = readl(&aregs->txdma.desc_abort_cnt);
+ regs_buff[num++] = readl(&aregs->txdma.payload_abort_cnt);
+ regs_buff[num++] = readl(&aregs->txdma.writeback_abort_cnt);
+ regs_buff[num++] = readl(&aregs->txdma.desc_timeout_cnt);
+ regs_buff[num++] = readl(&aregs->txdma.payload_timeout_cnt);
+ regs_buff[num++] = readl(&aregs->txdma.writeback_timeout_cnt);
+ regs_buff[num++] = readl(&aregs->txdma.desc_error_cnt);
+ regs_buff[num++] = readl(&aregs->txdma.payload_error_cnt);
+ regs_buff[num++] = readl(&aregs->txdma.writeback_error_cnt);
+ regs_buff[num++] = readl(&aregs->txdma.dropped_tlp_cnt);
+ regs_buff[num++] = readl(&aregs->txdma.new_service_complete);
+ regs_buff[num++] = readl(&aregs->txdma.ethernet_packet_cnt);
+
+ /* RXDMA regs */
+ regs_buff[num++] = readl(&aregs->rxdma.csr);
+ regs_buff[num++] = readl(&aregs->rxdma.dma_wb_base_hi);
+ regs_buff[num++] = readl(&aregs->rxdma.dma_wb_base_lo);
+ regs_buff[num++] = readl(&aregs->rxdma.num_pkt_done);
+ regs_buff[num++] = readl(&aregs->rxdma.max_pkt_time);
+ regs_buff[num++] = readl(&aregs->rxdma.rxq_rd_addr);
+ regs_buff[num++] = readl(&aregs->rxdma.rxq_rd_addr_ext);
+ regs_buff[num++] = readl(&aregs->rxdma.rxq_wr_addr);
+ regs_buff[num++] = readl(&aregs->rxdma.psr_base_hi);
+ regs_buff[num++] = readl(&aregs->rxdma.psr_base_lo);
+ regs_buff[num++] = readl(&aregs->rxdma.psr_num_des);
+ regs_buff[num++] = readl(&aregs->rxdma.psr_avail_offset);
+ regs_buff[num++] = readl(&aregs->rxdma.psr_full_offset);
+ regs_buff[num++] = readl(&aregs->rxdma.psr_access_index);
+ regs_buff[num++] = readl(&aregs->rxdma.psr_min_des);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr0_base_lo);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr0_base_hi);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr0_num_des);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr0_avail_offset);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr0_full_offset);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr0_rd_index);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr0_min_des);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr1_base_lo);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr1_base_hi);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr1_num_des);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr1_avail_offset);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr1_full_offset);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr1_rd_index);
+ regs_buff[num++] = readl(&aregs->rxdma.fbr1_min_des);
+}
+
+static void et131x_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *info)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver));
+ strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
+ strlcpy(info->bus_info, pci_name(adapter->pdev),
+ sizeof(info->bus_info));
+}
+
+static struct ethtool_ops et131x_ethtool_ops = {
+ .get_settings = et131x_get_settings,
+ .set_settings = et131x_set_settings,
+ .get_drvinfo = et131x_get_drvinfo,
+ .get_regs_len = et131x_get_regs_len,
+ .get_regs = et131x_get_regs,
+ .get_link = ethtool_op_get_link,
+};
+
+/* et131x_hwaddr_init - set up the MAC Address on the ET1310 */
+static void et131x_hwaddr_init(struct et131x_adapter *adapter)
+{
+ /* If have our default mac from init and no mac address from
+ * EEPROM then we need to generate the last octet and set it on the
+ * device
+ */
+ if (is_zero_ether_addr(adapter->rom_addr)) {
+ /* We need to randomly generate the last octet so we
+ * decrease our chances of setting the mac address to
+ * same as another one of our cards in the system
+ */
+ get_random_bytes(&adapter->addr[5], 1);
+ /* We have the default value in the register we are
+ * working with so we need to copy the current
+ * address into the permanent address
+ */
+ memcpy(adapter->rom_addr,
+ adapter->addr, ETH_ALEN);
+ } else {
+ /* We do not have an override address, so set the
+ * current address to the permanent address and add
+ * it to the device
+ */
+ memcpy(adapter->addr,
+ adapter->rom_addr, ETH_ALEN);
+ }
+}
+
+/* et131x_pci_init - initial PCI setup
+ *
+ * Perform the initial setup of PCI registers and if possible initialise
+ * the MAC address. At this point the I/O registers have yet to be mapped
+ */
+static int et131x_pci_init(struct et131x_adapter *adapter,
+ struct pci_dev *pdev)
+{
+ u16 max_payload;
+ int i, rc;
+
+ rc = et131x_init_eeprom(adapter);
+ if (rc < 0)
+ goto out;
+
+ if (!pci_is_pcie(pdev)) {
+ dev_err(&pdev->dev, "Missing PCIe capabilities\n");
+ goto err_out;
+ }
+
+ /* Let's set up the PORT LOGIC Register. */
+
+ /* Program the Ack/Nak latency and replay timers */
+ max_payload = pdev->pcie_mpss;
+
+ if (max_payload < 2) {
+ static const u16 acknak[2] = { 0x76, 0xD0 };
+ static const u16 replay[2] = { 0x1E0, 0x2ED };
+
+ if (pci_write_config_word(pdev, ET1310_PCI_ACK_NACK,
+ acknak[max_payload])) {
+ dev_err(&pdev->dev,
+ "Could not write PCI config space for ACK/NAK\n");
+ goto err_out;
+ }
+ if (pci_write_config_word(pdev, ET1310_PCI_REPLAY,
+ replay[max_payload])) {
+ dev_err(&pdev->dev,
+ "Could not write PCI config space for Replay Timer\n");
+ goto err_out;
+ }
+ }
+
+ /* l0s and l1 latency timers. We are using default values.
+ * Representing 001 for L0s and 010 for L1
+ */
+ if (pci_write_config_byte(pdev, ET1310_PCI_L0L1LATENCY, 0x11)) {
+ dev_err(&pdev->dev,
+ "Could not write PCI config space for Latency Timers\n");
+ goto err_out;
+ }
+
+ /* Change the max read size to 2k */
+ if (pcie_set_readrq(pdev, 2048)) {
+ dev_err(&pdev->dev,
+ "Couldn't change PCI config space for Max read size\n");
+ goto err_out;
+ }
+
+ /* Get MAC address from config space if an eeprom exists, otherwise
+ * the MAC address there will not be valid
+ */
+ if (!adapter->has_eeprom) {
+ et131x_hwaddr_init(adapter);
+ return 0;
+ }
+
+ for (i = 0; i < ETH_ALEN; i++) {
+ if (pci_read_config_byte(pdev, ET1310_PCI_MAC_ADDRESS + i,
+ adapter->rom_addr + i)) {
+ dev_err(&pdev->dev, "Could not read PCI config space for MAC address\n");
+ goto err_out;
+ }
+ }
+ ether_addr_copy(adapter->addr, adapter->rom_addr);
+out:
+ return rc;
+err_out:
+ rc = -EIO;
+ goto out;
+}
+
+/* et131x_error_timer_handler
+ * @data: timer-specific variable; here a pointer to our adapter structure
+ *
+ * The routine called when the error timer expires, to track the number of
+ * recurring errors.
+ */
+static void et131x_error_timer_handler(unsigned long data)
+{
+ struct et131x_adapter *adapter = (struct et131x_adapter *)data;
+ struct phy_device *phydev = adapter->phydev;
+
+ if (et1310_in_phy_coma(adapter)) {
+ /* Bring the device immediately out of coma, to
+ * prevent it from sleeping indefinitely, this
+ * mechanism could be improved!
+ */
+ et1310_disable_phy_coma(adapter);
+ adapter->boot_coma = 20;
+ } else {
+ et1310_update_macstat_host_counters(adapter);
+ }
+
+ if (!phydev->link && adapter->boot_coma < 11)
+ adapter->boot_coma++;
+
+ if (adapter->boot_coma == 10) {
+ if (!phydev->link) {
+ if (!et1310_in_phy_coma(adapter)) {
+ /* NOTE - This was originally a 'sync with
+ * interrupt'. How to do that under Linux?
+ */
+ et131x_enable_interrupts(adapter);
+ et1310_enable_phy_coma(adapter);
+ }
+ }
+ }
+
+ /* This is a periodic timer, so reschedule */
+ mod_timer(&adapter->error_timer, jiffies + TX_ERROR_PERIOD * HZ / 1000);
+}
+
+/* et131x_adapter_memory_free - Free all memory allocated for use by Tx & Rx */
+static void et131x_adapter_memory_free(struct et131x_adapter *adapter)
+{
+ et131x_tx_dma_memory_free(adapter);
+ et131x_rx_dma_memory_free(adapter);
+}
+
+/* et131x_adapter_memory_alloc
+ * Allocate all the memory blocks for send, receive and others.
+ */
+static int et131x_adapter_memory_alloc(struct et131x_adapter *adapter)
+{
+ int status;
+
+ /* Allocate memory for the Tx Ring */
+ status = et131x_tx_dma_memory_alloc(adapter);
+ if (status) {
+ dev_err(&adapter->pdev->dev,
+ "et131x_tx_dma_memory_alloc FAILED\n");
+ et131x_tx_dma_memory_free(adapter);
+ return status;
+ }
+ /* Receive buffer memory allocation */
+ status = et131x_rx_dma_memory_alloc(adapter);
+ if (status) {
+ dev_err(&adapter->pdev->dev,
+ "et131x_rx_dma_memory_alloc FAILED\n");
+ et131x_adapter_memory_free(adapter);
+ return status;
+ }
+
+ /* Init receive data structures */
+ status = et131x_init_recv(adapter);
+ if (status) {
+ dev_err(&adapter->pdev->dev, "et131x_init_recv FAILED\n");
+ et131x_adapter_memory_free(adapter);
+ }
+ return status;
+}
+
+static void et131x_adjust_link(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+ struct phy_device *phydev = adapter->phydev;
+
+ if (!phydev)
+ return;
+ if (phydev->link == adapter->link)
+ return;
+
+ /* Check to see if we are in coma mode and if
+ * so, disable it because we will not be able
+ * to read PHY values until we are out.
+ */
+ if (et1310_in_phy_coma(adapter))
+ et1310_disable_phy_coma(adapter);
+
+ adapter->link = phydev->link;
+ phy_print_status(phydev);
+
+ if (phydev->link) {
+ adapter->boot_coma = 20;
+ if (phydev->speed == SPEED_10) {
+ u16 register18;
+
+ et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG,
+ ®ister18);
+ et131x_mii_write(adapter, phydev->addr,
+ PHY_MPHY_CONTROL_REG, register18 | 0x4);
+ et131x_mii_write(adapter, phydev->addr, PHY_INDEX_REG,
+ register18 | 0x8402);
+ et131x_mii_write(adapter, phydev->addr, PHY_DATA_REG,
+ register18 | 511);
+ et131x_mii_write(adapter, phydev->addr,
+ PHY_MPHY_CONTROL_REG, register18);
+ }
+
+ et1310_config_flow_control(adapter);
+
+ if (phydev->speed == SPEED_1000 &&
+ adapter->registry_jumbo_packet > 2048) {
+ u16 reg;
+
+ et131x_mii_read(adapter, PHY_CONFIG, ®);
+ reg &= ~ET_PHY_CONFIG_TX_FIFO_DEPTH;
+ reg |= ET_PHY_CONFIG_FIFO_DEPTH_32;
+ et131x_mii_write(adapter, phydev->addr, PHY_CONFIG,
+ reg);
+ }
+
+ et131x_set_rx_dma_timer(adapter);
+ et1310_config_mac_regs2(adapter);
+ } else {
+ adapter->boot_coma = 0;
+
+ if (phydev->speed == SPEED_10) {
+ u16 register18;
+
+ et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG,
+ ®ister18);
+ et131x_mii_write(adapter, phydev->addr,
+ PHY_MPHY_CONTROL_REG, register18 | 0x4);
+ et131x_mii_write(adapter, phydev->addr,
+ PHY_INDEX_REG, register18 | 0x8402);
+ et131x_mii_write(adapter, phydev->addr,
+ PHY_DATA_REG, register18 | 511);
+ et131x_mii_write(adapter, phydev->addr,
+ PHY_MPHY_CONTROL_REG, register18);
+ }
+
+ /* Free the packets being actively sent & stopped */
+ et131x_free_busy_send_packets(adapter);
+
+ /* Re-initialize the send structures */
+ et131x_init_send(adapter);
+
+ /* Bring the device back to the state it was during
+ * init prior to autonegotiation being complete. This
+ * way, when we get the auto-neg complete interrupt,
+ * we can complete init by calling config_mac_regs2.
+ */
+ et131x_soft_reset(adapter);
+
+ /* Setup ET1310 as per the documentation */
+ et131x_adapter_setup(adapter);
+
+ /* perform reset of tx/rx */
+ et131x_disable_txrx(netdev);
+ et131x_enable_txrx(netdev);
+ }
+}
+
+static int et131x_mii_probe(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+ struct phy_device *phydev = NULL;
+
+ phydev = phy_find_first(adapter->mii_bus);
+ if (!phydev) {
+ dev_err(&adapter->pdev->dev, "no PHY found\n");
+ return -ENODEV;
+ }
+
+ phydev = phy_connect(netdev, dev_name(&phydev->dev),
+ &et131x_adjust_link, PHY_INTERFACE_MODE_MII);
+
+ if (IS_ERR(phydev)) {
+ dev_err(&adapter->pdev->dev, "Could not attach to PHY\n");
+ return PTR_ERR(phydev);
+ }
+
+ phydev->supported &= (SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half |
+ SUPPORTED_100baseT_Full |
+ SUPPORTED_Autoneg |
+ SUPPORTED_MII |
+ SUPPORTED_TP);
+
+ if (adapter->pdev->device != ET131X_PCI_DEVICE_ID_FAST)
+ phydev->supported |= SUPPORTED_1000baseT_Half |
+ SUPPORTED_1000baseT_Full;
+
+ phydev->advertising = phydev->supported;
+ phydev->autoneg = AUTONEG_ENABLE;
+ adapter->phydev = phydev;
+
+ dev_info(&adapter->pdev->dev,
+ "attached PHY driver [%s] (mii_bus:phy_addr=%s)\n",
+ phydev->drv->name, dev_name(&phydev->dev));
+
+ return 0;
+}
+
+/* et131x_adapter_init
+ *
+ * Initialize the data structures for the et131x_adapter object and link
+ * them together with the platform provided device structures.
+ */
+static struct et131x_adapter *et131x_adapter_init(struct net_device *netdev,
+ struct pci_dev *pdev)
+{
+ static const u8 default_mac[] = { 0x00, 0x05, 0x3d, 0x00, 0x02, 0x00 };
+
+ struct et131x_adapter *adapter;
+
+ /* Allocate private adapter struct and copy in relevant information */
+ adapter = netdev_priv(netdev);
+ adapter->pdev = pci_dev_get(pdev);
+ adapter->netdev = netdev;
+
+ /* Initialize spinlocks here */
+ spin_lock_init(&adapter->tcb_send_qlock);
+ spin_lock_init(&adapter->tcb_ready_qlock);
+ spin_lock_init(&adapter->rcv_lock);
+
+ adapter->registry_jumbo_packet = 1514; /* 1514-9216 */
+
+ /* Set the MAC address to a default */
+ ether_addr_copy(adapter->addr, default_mac);
+
+ return adapter;
+}
+
+/* et131x_pci_remove
+ *
+ * Registered in the pci_driver structure, this function is called when the
+ * PCI subsystem detects that a PCI device which matches the information
+ * contained in the pci_device_id table has been removed.
+ */
+static void et131x_pci_remove(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ unregister_netdev(netdev);
+ netif_napi_del(&adapter->napi);
+ phy_disconnect(adapter->phydev);
+ mdiobus_unregister(adapter->mii_bus);
+ kfree(adapter->mii_bus->irq);
+ mdiobus_free(adapter->mii_bus);
+
+ et131x_adapter_memory_free(adapter);
+ iounmap(adapter->regs);
+ pci_dev_put(pdev);
+
+ free_netdev(netdev);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+}
+
+/* et131x_up - Bring up a device for use. */
+static void et131x_up(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ et131x_enable_txrx(netdev);
+ phy_start(adapter->phydev);
+}
+
+/* et131x_down - Bring down the device */
+static void et131x_down(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ /* Save the timestamp for the TX watchdog, prevent a timeout */
+ netdev->trans_start = jiffies;
+
+ phy_stop(adapter->phydev);
+ et131x_disable_txrx(netdev);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int et131x_suspend(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct net_device *netdev = pci_get_drvdata(pdev);
+
+ if (netif_running(netdev)) {
+ netif_device_detach(netdev);
+ et131x_down(netdev);
+ pci_save_state(pdev);
+ }
+
+ return 0;
+}
+
+static int et131x_resume(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct net_device *netdev = pci_get_drvdata(pdev);
+
+ if (netif_running(netdev)) {
+ pci_restore_state(pdev);
+ et131x_up(netdev);
+ netif_device_attach(netdev);
+ }
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(et131x_pm_ops, et131x_suspend, et131x_resume);
+#define ET131X_PM_OPS (&et131x_pm_ops)
+#else
+#define ET131X_PM_OPS NULL
+#endif
+
+/* et131x_isr - The Interrupt Service Routine for the driver.
+ * @irq: the IRQ on which the interrupt was received.
+ * @dev_id: device-specific info (here a pointer to a net_device struct)
+ *
+ * Returns a value indicating if the interrupt was handled.
+ */
+static irqreturn_t et131x_isr(int irq, void *dev_id)
+{
+ bool handled = true;
+ bool enable_interrupts = true;
+ struct net_device *netdev = (struct net_device *)dev_id;
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+ struct address_map __iomem *iomem = adapter->regs;
+ struct rx_ring *rx_ring = &adapter->rx_ring;
+ struct tx_ring *tx_ring = &adapter->tx_ring;
+ u32 status;
+
+ if (!netif_device_present(netdev)) {
+ handled = false;
+ enable_interrupts = false;
+ goto out;
+ }
+
+ /* If the adapter is in low power state, then it should not
+ * recognize any interrupt
+ */
+
+ /* Disable Device Interrupts */
+ et131x_disable_interrupts(adapter);
+
+ /* Get a copy of the value in the interrupt status register
+ * so we can process the interrupting section
+ */
+ status = readl(&adapter->regs->global.int_status);
+
+ if (adapter->flow == FLOW_TXONLY || adapter->flow == FLOW_BOTH)
+ status &= ~INT_MASK_ENABLE;
+ else
+ status &= ~INT_MASK_ENABLE_NO_FLOW;
+
+ /* Make sure this is our interrupt */
+ if (!status) {
+ handled = false;
+ et131x_enable_interrupts(adapter);
+ goto out;
+ }
+
+ /* This is our interrupt, so process accordingly */
+ if (status & ET_INTR_WATCHDOG) {
+ struct tcb *tcb = tx_ring->send_head;
+
+ if (tcb)
+ if (++tcb->stale > 1)
+ status |= ET_INTR_TXDMA_ISR;
+
+ if (rx_ring->unfinished_receives)
+ status |= ET_INTR_RXDMA_XFR_DONE;
+ else if (tcb == NULL)
+ writel(0, &adapter->regs->global.watchdog_timer);
+
+ status &= ~ET_INTR_WATCHDOG;
+ }
+
+ if (status & (ET_INTR_RXDMA_XFR_DONE | ET_INTR_TXDMA_ISR)) {
+ enable_interrupts = false;
+ napi_schedule(&adapter->napi);
+ }
+
+ status &= ~(ET_INTR_TXDMA_ISR | ET_INTR_RXDMA_XFR_DONE);
+
+ if (!status)
+ goto out;
+
+ /* Handle the TXDMA Error interrupt */
+ if (status & ET_INTR_TXDMA_ERR) {
+ /* Following read also clears the register (COR) */
+ u32 txdma_err = readl(&iomem->txdma.tx_dma_error);
+
+ dev_warn(&adapter->pdev->dev,
+ "TXDMA_ERR interrupt, error = %d\n",
+ txdma_err);
+ }
+
+ /* Handle Free Buffer Ring 0 and 1 Low interrupt */
+ if (status & (ET_INTR_RXDMA_FB_R0_LOW | ET_INTR_RXDMA_FB_R1_LOW)) {
+ /* This indicates the number of unused buffers in RXDMA free
+ * buffer ring 0 is <= the limit you programmed. Free buffer
+ * resources need to be returned. Free buffers are consumed as
+ * packets are passed from the network to the host. The host
+ * becomes aware of the packets from the contents of the packet
+ * status ring. This ring is queried when the packet done
+ * interrupt occurs. Packets are then passed to the OS. When
+ * the OS is done with the packets the resources can be
+ * returned to the ET1310 for re-use. This interrupt is one
+ * method of returning resources.
+ */
+
+ /* If the user has flow control on, then we will
+ * send a pause packet, otherwise just exit
+ */
+ if (adapter->flow == FLOW_TXONLY || adapter->flow == FLOW_BOTH) {
+ u32 pm_csr;
+
+ /* Tell the device to send a pause packet via the back
+ * pressure register (bp req and bp xon/xoff)
+ */
+ pm_csr = readl(&iomem->global.pm_csr);
+ if (!et1310_in_phy_coma(adapter))
+ writel(3, &iomem->txmac.bp_ctrl);
+ }
+ }
+
+ /* Handle Packet Status Ring Low Interrupt */
+ if (status & ET_INTR_RXDMA_STAT_LOW) {
+ /* Same idea as with the two Free Buffer Rings. Packets going
+ * from the network to the host each consume a free buffer
+ * resource and a packet status resource. These resources are
+ * passed to the OS. When the OS is done with the resources,
+ * they need to be returned to the ET1310. This is one method
+ * of returning the resources.
+ */
+ }
+
+ /* Handle RXDMA Error Interrupt */
+ if (status & ET_INTR_RXDMA_ERR) {
+ /* The rxdma_error interrupt is sent when a time-out on a
+ * request issued by the JAGCore has occurred or a completion is
+ * returned with an un-successful status. In both cases the
+ * request is considered complete. The JAGCore will
+ * automatically re-try the request in question. Normally
+ * information on events like these are sent to the host using
+ * the "Advanced Error Reporting" capability. This interrupt is
+ * another way of getting similar information. The only thing
+ * required is to clear the interrupt by reading the ISR in the
+ * global resources. The JAGCore will do a re-try on the
+ * request. Normally you should never see this interrupt. If
+ * you start to see this interrupt occurring frequently then
+ * something bad has occurred. A reset might be the thing to do.
+ */
+ /* TRAP();*/
+
+ dev_warn(&adapter->pdev->dev,
+ "RxDMA_ERR interrupt, error %x\n",
+ readl(&iomem->txmac.tx_test));
+ }
+
+ /* Handle the Wake on LAN Event */
+ if (status & ET_INTR_WOL) {
+ /* This is a secondary interrupt for wake on LAN. The driver
+ * should never see this, if it does, something serious is
+ * wrong. We will TRAP the message when we are in DBG mode,
+ * otherwise we will ignore it.
+ */
+ dev_err(&adapter->pdev->dev, "WAKE_ON_LAN interrupt\n");
+ }
+
+ /* Let's move on to the TxMac */
+ if (status & ET_INTR_TXMAC) {
+ u32 err = readl(&iomem->txmac.err);
+
+ /* When any of the errors occur and TXMAC generates an
+ * interrupt to report these errors, it usually means that
+ * TXMAC has detected an error in the data stream retrieved
+ * from the on-chip Tx Q. All of these errors are catastrophic
+ * and TXMAC won't be able to recover data when these errors
+ * occur. In a nutshell, the whole Tx path will have to be reset
+ * and re-configured afterwards.
+ */
+ dev_warn(&adapter->pdev->dev,
+ "TXMAC interrupt, error 0x%08x\n",
+ err);
+
+ /* If we are debugging, we want to see this error, otherwise we
+ * just want the device to be reset and continue
+ */
+ }
+
+ /* Handle RXMAC Interrupt */
+ if (status & ET_INTR_RXMAC) {
+ /* These interrupts are catastrophic to the device, what we need
+ * to do is disable the interrupts and set the flag to cause us
+ * to reset so we can solve this issue.
+ */
+ /* MP_SET_FLAG( adapter, FMP_ADAPTER_HARDWARE_ERROR); */
+
+ dev_warn(&adapter->pdev->dev,
+ "RXMAC interrupt, error 0x%08x. Requesting reset\n",
+ readl(&iomem->rxmac.err_reg));
+
+ dev_warn(&adapter->pdev->dev,
+ "Enable 0x%08x, Diag 0x%08x\n",
+ readl(&iomem->rxmac.ctrl),
+ readl(&iomem->rxmac.rxq_diag));
+
+ /* If we are debugging, we want to see this error, otherwise we
+ * just want the device to be reset and continue
+ */
+ }
+
+ /* Handle MAC_STAT Interrupt */
+ if (status & ET_INTR_MAC_STAT) {
+ /* This means at least one of the un-masked counters in the
+ * MAC_STAT block has rolled over. Use this to maintain the top,
+ * software managed bits of the counter(s).
+ */
+ et1310_handle_macstat_interrupt(adapter);
+ }
+
+ /* Handle SLV Timeout Interrupt */
+ if (status & ET_INTR_SLV_TIMEOUT) {
+ /* This means a timeout has occurred on a read or write request
+ * to one of the JAGCore registers. The Global Resources block
+ * has terminated the request and on a read request, returned a
+ * "fake" value. The most likely reasons are: Bad Address or the
+ * addressed module is in a power-down state and can't respond.
+ */
+ }
+
+out:
+ if (enable_interrupts)
+ et131x_enable_interrupts(adapter);
+
+ return IRQ_RETVAL(handled);
+}
+
+static int et131x_poll(struct napi_struct *napi, int budget)
+{
+ struct et131x_adapter *adapter =
+ container_of(napi, struct et131x_adapter, napi);
+ int work_done = et131x_handle_recv_pkts(adapter, budget);
+
+ et131x_handle_send_pkts(adapter);
+
+ if (work_done < budget) {
+ napi_complete(&adapter->napi);
+ et131x_enable_interrupts(adapter);
+ }
+
+ return work_done;
+}
+
+/* et131x_stats - Return the current device statistics */
+static struct net_device_stats *et131x_stats(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+ struct net_device_stats *stats = &adapter->netdev->stats;
+ struct ce_stats *devstat = &adapter->stats;
+
+ stats->rx_errors = devstat->rx_length_errs +
+ devstat->rx_align_errs +
+ devstat->rx_crc_errs +
+ devstat->rx_code_violations +
+ devstat->rx_other_errs;
+ stats->tx_errors = devstat->tx_max_pkt_errs;
+ stats->multicast = devstat->multicast_pkts_rcvd;
+ stats->collisions = devstat->tx_collisions;
+
+ stats->rx_length_errors = devstat->rx_length_errs;
+ stats->rx_over_errors = devstat->rx_overflows;
+ stats->rx_crc_errors = devstat->rx_crc_errs;
+ stats->rx_dropped = devstat->rcvd_pkts_dropped;
+
+ /* NOTE: Not used, can't find analogous statistics */
+ /* stats->rx_frame_errors = devstat->; */
+ /* stats->rx_fifo_errors = devstat->; */
+ /* stats->rx_missed_errors = devstat->; */
+
+ /* stats->tx_aborted_errors = devstat->; */
+ /* stats->tx_carrier_errors = devstat->; */
+ /* stats->tx_fifo_errors = devstat->; */
+ /* stats->tx_heartbeat_errors = devstat->; */
+ /* stats->tx_window_errors = devstat->; */
+ return stats;
+}
+
+/* et131x_open - Open the device for use. */
+static int et131x_open(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+ struct pci_dev *pdev = adapter->pdev;
+ unsigned int irq = pdev->irq;
+ int result;
+
+ /* Start the timer to track NIC errors */
+ init_timer(&adapter->error_timer);
+ adapter->error_timer.expires = jiffies + TX_ERROR_PERIOD * HZ / 1000;
+ adapter->error_timer.function = et131x_error_timer_handler;
+ adapter->error_timer.data = (unsigned long)adapter;
+ add_timer(&adapter->error_timer);
+
+ result = request_irq(irq, et131x_isr,
+ IRQF_SHARED, netdev->name, netdev);
+ if (result) {
+ dev_err(&pdev->dev, "could not register IRQ %d\n", irq);
+ return result;
+ }
+
+ adapter->flags |= FMP_ADAPTER_INTERRUPT_IN_USE;
+
+ napi_enable(&adapter->napi);
+
+ et131x_up(netdev);
+
+ return result;
+}
+
+/* et131x_close - Close the device */
+static int et131x_close(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ et131x_down(netdev);
+ napi_disable(&adapter->napi);
+
+ adapter->flags &= ~FMP_ADAPTER_INTERRUPT_IN_USE;
+ free_irq(adapter->pdev->irq, netdev);
+
+ /* Stop the error timer */
+ return del_timer_sync(&adapter->error_timer);
+}
+
+/* et131x_ioctl - The I/O Control handler for the driver
+ * @netdev: device on which the control request is being made
+ * @reqbuf: a pointer to the IOCTL request buffer
+ * @cmd: the IOCTL command code
+ */
+static int et131x_ioctl(struct net_device *netdev, struct ifreq *reqbuf,
+ int cmd)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ if (!adapter->phydev)
+ return -EINVAL;
+
+ return phy_mii_ioctl(adapter->phydev, reqbuf, cmd);
+}
+
+/* et131x_set_packet_filter - Configures the Rx Packet filtering on the device
+ * @adapter: pointer to our private adapter structure
+ *
+ * FIXME: lot of dups with MAC code
+ */
+static int et131x_set_packet_filter(struct et131x_adapter *adapter)
+{
+ int filter = adapter->packet_filter;
+ u32 ctrl;
+ u32 pf_ctrl;
+
+ ctrl = readl(&adapter->regs->rxmac.ctrl);
+ pf_ctrl = readl(&adapter->regs->rxmac.pf_ctrl);
+
+ /* Default to disabled packet filtering. Enable it in the individual
+ * case statements that require the device to filter something
+ */
+ ctrl |= 0x04;
+
+ /* Set us to be in promiscuous mode so we receive everything, this
+ * is also true when we get a packet filter of 0
+ */
+ if ((filter & ET131X_PACKET_TYPE_PROMISCUOUS) || filter == 0)
+ pf_ctrl &= ~7; /* Clear filter bits */
+ else {
+ /* Set us up with Multicast packet filtering. Three cases are
+ * possible - (1) we have a multi-cast list, (2) we receive ALL
+ * multicast entries or (3) we receive none.
+ */
+ if (filter & ET131X_PACKET_TYPE_ALL_MULTICAST)
+ pf_ctrl &= ~2; /* Multicast filter bit */
+ else {
+ et1310_setup_device_for_multicast(adapter);
+ pf_ctrl |= 2;
+ ctrl &= ~0x04;
+ }
+
+ /* Set us up with Unicast packet filtering */
+ if (filter & ET131X_PACKET_TYPE_DIRECTED) {
+ et1310_setup_device_for_unicast(adapter);
+ pf_ctrl |= 4;
+ ctrl &= ~0x04;
+ }
+
+ /* Set us up with Broadcast packet filtering */
+ if (filter & ET131X_PACKET_TYPE_BROADCAST) {
+ pf_ctrl |= 1; /* Broadcast filter bit */
+ ctrl &= ~0x04;
+ } else {
+ pf_ctrl &= ~1;
+ }
+
+ /* Setup the receive mac configuration registers - Packet
+ * Filter control + the enable / disable for packet filter
+ * in the control reg.
+ */
+ writel(pf_ctrl, &adapter->regs->rxmac.pf_ctrl);
+ writel(ctrl, &adapter->regs->rxmac.ctrl);
+ }
+ return 0;
+}
+
+/* et131x_multicast - The handler to configure multicasting on the interface */
+static void et131x_multicast(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+ int packet_filter;
+ struct netdev_hw_addr *ha;
+ int i;
+
+ /* Before we modify the platform-independent filter flags, store them
+ * locally. This allows us to determine if anything's changed and if
+ * we even need to bother the hardware
+ */
+ packet_filter = adapter->packet_filter;
+
+ /* Clear the 'multicast' flag locally; because we only have a single
+ * flag to check multicast, and multiple multicast addresses can be
+ * set, this is the easiest way to determine if more than one
+ * multicast address is being set.
+ */
+ packet_filter &= ~ET131X_PACKET_TYPE_MULTICAST;
+
+ /* Check the net_device flags and set the device independent flags
+ * accordingly
+ */
+ if (netdev->flags & IFF_PROMISC)
+ adapter->packet_filter |= ET131X_PACKET_TYPE_PROMISCUOUS;
+ else
+ adapter->packet_filter &= ~ET131X_PACKET_TYPE_PROMISCUOUS;
+
+ if ((netdev->flags & IFF_ALLMULTI) ||
+ (netdev_mc_count(netdev) > NIC_MAX_MCAST_LIST))
+ adapter->packet_filter |= ET131X_PACKET_TYPE_ALL_MULTICAST;
+
+ if (netdev_mc_count(netdev) < 1) {
+ adapter->packet_filter &= ~ET131X_PACKET_TYPE_ALL_MULTICAST;
+ adapter->packet_filter &= ~ET131X_PACKET_TYPE_MULTICAST;
+ } else {
+ adapter->packet_filter |= ET131X_PACKET_TYPE_MULTICAST;
+ }
+
+ /* Set values in the private adapter struct */
+ i = 0;
+ netdev_for_each_mc_addr(ha, netdev) {
+ if (i == NIC_MAX_MCAST_LIST)
+ break;
+ memcpy(adapter->multicast_list[i++], ha->addr, ETH_ALEN);
+ }
+ adapter->multicast_addr_count = i;
+
+ /* Are the new flags different from the previous ones? If not, then no
+ * action is required
+ *
+ * NOTE - This block will always update the multicast_list with the
+ * hardware, even if the addresses aren't the same.
+ */
+ if (packet_filter != adapter->packet_filter)
+ et131x_set_packet_filter(adapter);
+}
+
+/* et131x_tx - The handler to tx a packet on the device */
+static netdev_tx_t et131x_tx(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+ struct tx_ring *tx_ring = &adapter->tx_ring;
+
+ /* stop the queue if it's getting full */
+ if (tx_ring->used >= NUM_TCB - 1 && !netif_queue_stopped(netdev))
+ netif_stop_queue(netdev);
+
+ /* Save the timestamp for the TX timeout watchdog */
+ netdev->trans_start = jiffies;
+
+ /* TCB is not available */
+ if (tx_ring->used >= NUM_TCB)
+ goto drop_err;
+
+ if ((adapter->flags & FMP_ADAPTER_FAIL_SEND_MASK) ||
+ !netif_carrier_ok(netdev))
+ goto drop_err;
+
+ if (send_packet(skb, adapter))
+ goto drop_err;
+
+ return NETDEV_TX_OK;
+
+drop_err:
+ dev_kfree_skb_any(skb);
+ adapter->netdev->stats.tx_dropped++;
+ return NETDEV_TX_OK;
+}
+
+/* et131x_tx_timeout - Timeout handler
+ *
+ * The handler called when a Tx request times out. The timeout period is
+ * specified by the 'tx_timeo" element in the net_device structure (see
+ * et131x_alloc_device() to see how this value is set).
+ */
+static void et131x_tx_timeout(struct net_device *netdev)
+{
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+ struct tx_ring *tx_ring = &adapter->tx_ring;
+ struct tcb *tcb;
+ unsigned long flags;
+
+ /* If the device is closed, ignore the timeout */
+ if (~(adapter->flags & FMP_ADAPTER_INTERRUPT_IN_USE))
+ return;
+
+ /* Any nonrecoverable hardware error?
+ * Checks adapter->flags for any failure in phy reading
+ */
+ if (adapter->flags & FMP_ADAPTER_NON_RECOVER_ERROR)
+ return;
+
+ /* Hardware failure? */
+ if (adapter->flags & FMP_ADAPTER_HARDWARE_ERROR) {
+ dev_err(&adapter->pdev->dev, "hardware error - reset\n");
+ return;
+ }
+
+ /* Is send stuck? */
+ spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
+ tcb = tx_ring->send_head;
+ spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
+
+ if (tcb) {
+ tcb->count++;
+
+ if (tcb->count > NIC_SEND_HANG_THRESHOLD) {
+ dev_warn(&adapter->pdev->dev,
+ "Send stuck - reset. tcb->WrIndex %x\n",
+ tcb->index);
+
+ adapter->netdev->stats.tx_errors++;
+
+ /* perform reset of tx/rx */
+ et131x_disable_txrx(netdev);
+ et131x_enable_txrx(netdev);
+ }
+ }
+}
+
+/* et131x_change_mtu - The handler called to change the MTU for the device */
+static int et131x_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ int result = 0;
+ struct et131x_adapter *adapter = netdev_priv(netdev);
+
+ /* Make sure the requested MTU is valid */
+ if (new_mtu < 64 || new_mtu > 9216)
+ return -EINVAL;
+
+ et131x_disable_txrx(netdev);
+
+ /* Set the new MTU */
+ netdev->mtu = new_mtu;
+
+ /* Free Rx DMA memory */
+ et131x_adapter_memory_free(adapter);
+
+ /* Set the config parameter for Jumbo Packet support */
+ adapter->registry_jumbo_packet = new_mtu + 14;
+ et131x_soft_reset(adapter);
+
+ /* Alloc and init Rx DMA memory */
+ result = et131x_adapter_memory_alloc(adapter);
+ if (result != 0) {
+ dev_warn(&adapter->pdev->dev,
+ "Change MTU failed; couldn't re-alloc DMA memory\n");
+ return result;
+ }
+
+ et131x_init_send(adapter);
+
+ et131x_hwaddr_init(adapter);
+ memcpy(netdev->dev_addr, adapter->addr, ETH_ALEN);
+
+ /* Init the device with the new settings */
+ et131x_adapter_setup(adapter);
+ et131x_enable_txrx(netdev);
+
+ return result;
+}
+
+static const struct net_device_ops et131x_netdev_ops = {
+ .ndo_open = et131x_open,
+ .ndo_stop = et131x_close,
+ .ndo_start_xmit = et131x_tx,
+ .ndo_set_rx_mode = et131x_multicast,
+ .ndo_tx_timeout = et131x_tx_timeout,
+ .ndo_change_mtu = et131x_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_get_stats = et131x_stats,
+ .ndo_do_ioctl = et131x_ioctl,
+};
+
+/* et131x_pci_setup - Perform device initialization
+ * @pdev: a pointer to the device's pci_dev structure
+ * @ent: this device's entry in the pci_device_id table
+ *
+ * Registered in the pci_driver structure, this function is called when the
+ * PCI subsystem finds a new PCI device which matches the information
+ * contained in the pci_device_id table. This routine is the equivalent to
+ * a device insertion routine.
+ */
+static int et131x_pci_setup(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct net_device *netdev;
+ struct et131x_adapter *adapter;
+ int rc;
+ int ii;
+
+ rc = pci_enable_device(pdev);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "pci_enable_device() failed\n");
+ goto out;
+ }
+
+ /* Perform some basic PCI checks */
+ if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
+ dev_err(&pdev->dev, "Can't find PCI device's base address\n");
+ rc = -ENODEV;
+ goto err_disable;
+ }
+
+ rc = pci_request_regions(pdev, DRIVER_NAME);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "Can't get PCI resources\n");
+ goto err_disable;
+ }
+
+ pci_set_master(pdev);
+
+ /* Check the DMA addressing support of this device */
+ if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) &&
+ dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) {
+ dev_err(&pdev->dev, "No usable DMA addressing method\n");
+ rc = -EIO;
+ goto err_release_res;
+ }
+
+ /* Allocate netdev and private adapter structs */
+ netdev = alloc_etherdev(sizeof(struct et131x_adapter));
+ if (!netdev) {
+ dev_err(&pdev->dev, "Couldn't alloc netdev struct\n");
+ rc = -ENOMEM;
+ goto err_release_res;
+ }
+
+ netdev->watchdog_timeo = ET131X_TX_TIMEOUT;
+ netdev->netdev_ops = &et131x_netdev_ops;
+
+ SET_NETDEV_DEV(netdev, &pdev->dev);
+ netdev->ethtool_ops = &et131x_ethtool_ops;
+
+ adapter = et131x_adapter_init(netdev, pdev);
+
+ rc = et131x_pci_init(adapter, pdev);
+ if (rc < 0)
+ goto err_free_dev;
+
+ /* Map the bus-relative registers to system virtual memory */
+ adapter->regs = pci_ioremap_bar(pdev, 0);
+ if (!adapter->regs) {
+ dev_err(&pdev->dev, "Cannot map device registers\n");
+ rc = -ENOMEM;
+ goto err_free_dev;
+ }
+
+ /* If Phy COMA mode was enabled when we went down, disable it here. */
+ writel(ET_PMCSR_INIT, &adapter->regs->global.pm_csr);
+
+ /* Issue a global reset to the et1310 */
+ et131x_soft_reset(adapter);
+
+ /* Disable all interrupts (paranoid) */
+ et131x_disable_interrupts(adapter);
+
+ /* Allocate DMA memory */
+ rc = et131x_adapter_memory_alloc(adapter);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "Could not alloc adapter memory (DMA)\n");
+ goto err_iounmap;
+ }
+
+ /* Init send data structures */
+ et131x_init_send(adapter);
+
+ netif_napi_add(netdev, &adapter->napi, et131x_poll, 64);
+
+ /* Copy address into the net_device struct */
+ memcpy(netdev->dev_addr, adapter->addr, ETH_ALEN);
+
+ rc = -ENOMEM;
+
+ /* Setup the mii_bus struct */
+ adapter->mii_bus = mdiobus_alloc();
+ if (!adapter->mii_bus) {
+ dev_err(&pdev->dev, "Alloc of mii_bus struct failed\n");
+ goto err_mem_free;
+ }
+
+ adapter->mii_bus->name = "et131x_eth_mii";
+ snprintf(adapter->mii_bus->id, MII_BUS_ID_SIZE, "%x",
+ (adapter->pdev->bus->number << 8) | adapter->pdev->devfn);
+ adapter->mii_bus->priv = netdev;
+ adapter->mii_bus->read = et131x_mdio_read;
+ adapter->mii_bus->write = et131x_mdio_write;
+ adapter->mii_bus->irq = kmalloc_array(PHY_MAX_ADDR, sizeof(int),
+ GFP_KERNEL);
+ if (!adapter->mii_bus->irq)
+ goto err_mdio_free;
+
+ for (ii = 0; ii < PHY_MAX_ADDR; ii++)
+ adapter->mii_bus->irq[ii] = PHY_POLL;
+
+ rc = mdiobus_register(adapter->mii_bus);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "failed to register MII bus\n");
+ goto err_mdio_free_irq;
+ }
+
+ rc = et131x_mii_probe(netdev);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "failed to probe MII bus\n");
+ goto err_mdio_unregister;
+ }
+
+ /* Setup et1310 as per the documentation */
+ et131x_adapter_setup(adapter);
+
+ /* Init variable for counting how long we do not have link status */
+ adapter->boot_coma = 0;
+ et1310_disable_phy_coma(adapter);
+
+ /* We can enable interrupts now
+ *
+ * NOTE - Because registration of interrupt handler is done in the
+ * device's open(), defer enabling device interrupts to that
+ * point
+ */
+
+ /* Register the net_device struct with the Linux network layer */
+ rc = register_netdev(netdev);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "register_netdev() failed\n");
+ goto err_phy_disconnect;
+ }
+
+ /* Register the net_device struct with the PCI subsystem. Save a copy
+ * of the PCI config space for this device now that the device has
+ * been initialized, just in case it needs to be quickly restored.
+ */
+ pci_set_drvdata(pdev, netdev);
+out:
+ return rc;
+
+err_phy_disconnect:
+ phy_disconnect(adapter->phydev);
+err_mdio_unregister:
+ mdiobus_unregister(adapter->mii_bus);
+err_mdio_free_irq:
+ kfree(adapter->mii_bus->irq);
+err_mdio_free:
+ mdiobus_free(adapter->mii_bus);
+err_mem_free:
+ et131x_adapter_memory_free(adapter);
+err_iounmap:
+ iounmap(adapter->regs);
+err_free_dev:
+ pci_dev_put(pdev);
+ free_netdev(netdev);
+err_release_res:
+ pci_release_regions(pdev);
+err_disable:
+ pci_disable_device(pdev);
+ goto out;
+}
+
+static const struct pci_device_id et131x_pci_table[] = {
+ { PCI_VDEVICE(ATT, ET131X_PCI_DEVICE_ID_GIG), 0UL},
+ { PCI_VDEVICE(ATT, ET131X_PCI_DEVICE_ID_FAST), 0UL},
+ {0,}
+};
+MODULE_DEVICE_TABLE(pci, et131x_pci_table);
+
+static struct pci_driver et131x_driver = {
+ .name = DRIVER_NAME,
+ .id_table = et131x_pci_table,
+ .probe = et131x_pci_setup,
+ .remove = et131x_pci_remove,
+ .driver.pm = ET131X_PM_OPS,
+};
+
+module_pci_driver(et131x_driver);
diff --git a/drivers/net/ethernet/agere/et131x.h b/drivers/net/ethernet/agere/et131x.h
new file mode 100644
index 0000000..0727523
--- /dev/null
+++ b/drivers/net/ethernet/agere/et131x.h
@@ -0,0 +1,1533 @@
+/*
+ * Copyright  2005 Agere Systems Inc.
+ * All rights reserved.
+ * http://www.agere.com
+ *
+ * SOFTWARE LICENSE
+ *
+ * This software is provided subject to the following terms and conditions,
+ * which you should read carefully before using the software. Using this
+ * software indicates your acceptance of these terms and conditions. If you do
+ * not agree with these terms and conditions, do not use the software.
+ *
+ * Copyright  2005 Agere Systems Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source or binary forms, with or without
+ * modifications, are permitted provided that the following conditions are met:
+ *
+ * . Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following Disclaimer as comments in the code as
+ * well as in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * . Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following Disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * . Neither the name of Agere Systems Inc. nor the names of the contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * Disclaimer
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY
+ * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
+ * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ */
+
+#define DRIVER_NAME "et131x"
+#define DRIVER_VERSION "v2.0"
+
+/* EEPROM registers */
+
+/* LBCIF Register Groups (addressed via 32-bit offsets) */
+#define LBCIF_DWORD0_GROUP 0xAC
+#define LBCIF_DWORD1_GROUP 0xB0
+
+/* LBCIF Registers (addressed via 8-bit offsets) */
+#define LBCIF_ADDRESS_REGISTER 0xAC
+#define LBCIF_DATA_REGISTER 0xB0
+#define LBCIF_CONTROL_REGISTER 0xB1
+#define LBCIF_STATUS_REGISTER 0xB2
+
+/* LBCIF Control Register Bits */
+#define LBCIF_CONTROL_SEQUENTIAL_READ 0x01
+#define LBCIF_CONTROL_PAGE_WRITE 0x02
+#define LBCIF_CONTROL_EEPROM_RELOAD 0x08
+#define LBCIF_CONTROL_TWO_BYTE_ADDR 0x20
+#define LBCIF_CONTROL_I2C_WRITE 0x40
+#define LBCIF_CONTROL_LBCIF_ENABLE 0x80
+
+/* LBCIF Status Register Bits */
+#define LBCIF_STATUS_PHY_QUEUE_AVAIL 0x01
+#define LBCIF_STATUS_I2C_IDLE 0x02
+#define LBCIF_STATUS_ACK_ERROR 0x04
+#define LBCIF_STATUS_GENERAL_ERROR 0x08
+#define LBCIF_STATUS_CHECKSUM_ERROR 0x40
+#define LBCIF_STATUS_EEPROM_PRESENT 0x80
+
+/* START OF GLOBAL REGISTER ADDRESS MAP */
+/*
+ * 10bit registers
+ *
+ * Tx queue start address reg in global address map at address 0x0000
+ * tx queue end address reg in global address map at address 0x0004
+ * rx queue start address reg in global address map at address 0x0008
+ * rx queue end address reg in global address map at address 0x000C
+ */
+
+/*
+ * structure for power management control status reg in global address map
+ * located at address 0x0010
+ * jagcore_rx_rdy bit 9
+ * jagcore_tx_rdy bit 8
+ * phy_lped_en bit 7
+ * phy_sw_coma bit 6
+ * rxclk_gate bit 5
+ * txclk_gate bit 4
+ * sysclk_gate bit 3
+ * jagcore_rx_en bit 2
+ * jagcore_tx_en bit 1
+ * gigephy_en bit 0
+ */
+#define ET_PM_PHY_SW_COMA 0x40
+#define ET_PMCSR_INIT 0x38
+
+/*
+ * Interrupt status reg at address 0x0018
+ */
+#define ET_INTR_TXDMA_ISR 0x00000008
+#define ET_INTR_TXDMA_ERR 0x00000010
+#define ET_INTR_RXDMA_XFR_DONE 0x00000020
+#define ET_INTR_RXDMA_FB_R0_LOW 0x00000040
+#define ET_INTR_RXDMA_FB_R1_LOW 0x00000080
+#define ET_INTR_RXDMA_STAT_LOW 0x00000100
+#define ET_INTR_RXDMA_ERR 0x00000200
+#define ET_INTR_WATCHDOG 0x00004000
+#define ET_INTR_WOL 0x00008000
+#define ET_INTR_PHY 0x00010000
+#define ET_INTR_TXMAC 0x00020000
+#define ET_INTR_RXMAC 0x00040000
+#define ET_INTR_MAC_STAT 0x00080000
+#define ET_INTR_SLV_TIMEOUT 0x00100000
+
+/*
+ * Interrupt mask register at address 0x001C
+ * Interrupt alias clear mask reg at address 0x0020
+ * Interrupt status alias reg at address 0x0024
+ *
+ * Same masks as above
+ */
+
+/*
+ * Software reset reg at address 0x0028
+ * 0: txdma_sw_reset
+ * 1: rxdma_sw_reset
+ * 2: txmac_sw_reset
+ * 3: rxmac_sw_reset
+ * 4: mac_sw_reset
+ * 5: mac_stat_sw_reset
+ * 6: mmc_sw_reset
+ *31: selfclr_disable
+ */
+#define ET_RESET_ALL 0x007F
+
+/*
+ * SLV Timer reg at address 0x002C (low 24 bits)
+ */
+
+/*
+ * MSI Configuration reg at address 0x0030
+ */
+#define ET_MSI_VECTOR 0x0000001F
+#define ET_MSI_TC 0x00070000
+
+/*
+ * Loopback reg located at address 0x0034
+ */
+#define ET_LOOP_MAC 0x00000001
+#define ET_LOOP_DMA 0x00000002
+
+/*
+ * GLOBAL Module of JAGCore Address Mapping
+ * Located at address 0x0000
+ */
+struct global_regs { /* Location: */
+ u32 txq_start_addr; /* 0x0000 */
+ u32 txq_end_addr; /* 0x0004 */
+ u32 rxq_start_addr; /* 0x0008 */
+ u32 rxq_end_addr; /* 0x000C */
+ u32 pm_csr; /* 0x0010 */
+ u32 unused; /* 0x0014 */
+ u32 int_status; /* 0x0018 */
+ u32 int_mask; /* 0x001C */
+ u32 int_alias_clr_en; /* 0x0020 */
+ u32 int_status_alias; /* 0x0024 */
+ u32 sw_reset; /* 0x0028 */
+ u32 slv_timer; /* 0x002C */
+ u32 msi_config; /* 0x0030 */
+ u32 loopback; /* 0x0034 */
+ u32 watchdog_timer; /* 0x0038 */
+};
+
+/* START OF TXDMA REGISTER ADDRESS MAP */
+/*
+ * txdma control status reg at address 0x1000
+ */
+#define ET_TXDMA_CSR_HALT 0x00000001
+#define ET_TXDMA_DROP_TLP 0x00000002
+#define ET_TXDMA_CACHE_THRS 0x000000F0
+#define ET_TXDMA_CACHE_SHIFT 4
+#define ET_TXDMA_SNGL_EPKT 0x00000100
+#define ET_TXDMA_CLASS 0x00001E00
+
+/*
+ * structure for txdma packet ring base address hi reg in txdma address map
+ * located at address 0x1004
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for txdma packet ring base address low reg in txdma address map
+ * located at address 0x1008
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for txdma packet ring number of descriptor reg in txdma address
+ * map. Located at address 0x100C
+ *
+ * 31-10: unused
+ * 9-0: pr ndes
+ */
+#define ET_DMA12_MASK 0x0FFF /* 12 bit mask for DMA12W types */
+#define ET_DMA12_WRAP 0x1000
+#define ET_DMA10_MASK 0x03FF /* 10 bit mask for DMA10W types */
+#define ET_DMA10_WRAP 0x0400
+#define ET_DMA4_MASK 0x000F /* 4 bit mask for DMA4W types */
+#define ET_DMA4_WRAP 0x0010
+
+#define INDEX12(x) ((x) & ET_DMA12_MASK)
+#define INDEX10(x) ((x) & ET_DMA10_MASK)
+#define INDEX4(x) ((x) & ET_DMA4_MASK)
+
+/*
+ * 10bit DMA with wrap
+ * txdma tx queue write address reg in txdma address map at 0x1010
+ * txdma tx queue write address external reg in txdma address map at 0x1014
+ * txdma tx queue read address reg in txdma address map at 0x1018
+ *
+ * u32
+ * txdma status writeback address hi reg in txdma address map at0x101C
+ * txdma status writeback address lo reg in txdma address map at 0x1020
+ *
+ * 10bit DMA with wrap
+ * txdma service request reg in txdma address map at 0x1024
+ * structure for txdma service complete reg in txdma address map at 0x1028
+ *
+ * 4bit DMA with wrap
+ * txdma tx descriptor cache read index reg in txdma address map at 0x102C
+ * txdma tx descriptor cache write index reg in txdma address map at 0x1030
+ *
+ * txdma error reg in txdma address map at address 0x1034
+ * 0: PyldResend
+ * 1: PyldRewind
+ * 4: DescrResend
+ * 5: DescrRewind
+ * 8: WrbkResend
+ * 9: WrbkRewind
+ */
+
+/*
+ * Tx DMA Module of JAGCore Address Mapping
+ * Located at address 0x1000
+ */
+struct txdma_regs { /* Location: */
+ u32 csr; /* 0x1000 */
+ u32 pr_base_hi; /* 0x1004 */
+ u32 pr_base_lo; /* 0x1008 */
+ u32 pr_num_des; /* 0x100C */
+ u32 txq_wr_addr; /* 0x1010 */
+ u32 txq_wr_addr_ext; /* 0x1014 */
+ u32 txq_rd_addr; /* 0x1018 */
+ u32 dma_wb_base_hi; /* 0x101C */
+ u32 dma_wb_base_lo; /* 0x1020 */
+ u32 service_request; /* 0x1024 */
+ u32 service_complete; /* 0x1028 */
+ u32 cache_rd_index; /* 0x102C */
+ u32 cache_wr_index; /* 0x1030 */
+ u32 tx_dma_error; /* 0x1034 */
+ u32 desc_abort_cnt; /* 0x1038 */
+ u32 payload_abort_cnt; /* 0x103c */
+ u32 writeback_abort_cnt; /* 0x1040 */
+ u32 desc_timeout_cnt; /* 0x1044 */
+ u32 payload_timeout_cnt; /* 0x1048 */
+ u32 writeback_timeout_cnt; /* 0x104c */
+ u32 desc_error_cnt; /* 0x1050 */
+ u32 payload_error_cnt; /* 0x1054 */
+ u32 writeback_error_cnt; /* 0x1058 */
+ u32 dropped_tlp_cnt; /* 0x105c */
+ u32 new_service_complete; /* 0x1060 */
+ u32 ethernet_packet_cnt; /* 0x1064 */
+};
+
+/* END OF TXDMA REGISTER ADDRESS MAP */
+
+/* START OF RXDMA REGISTER ADDRESS MAP */
+/*
+ * structure for control status reg in rxdma address map
+ * Located at address 0x2000
+ *
+ * CSR
+ * 0: halt
+ * 1-3: tc
+ * 4: fbr_big_endian
+ * 5: psr_big_endian
+ * 6: pkt_big_endian
+ * 7: dma_big_endian
+ * 8-9: fbr0_size
+ * 10: fbr0_enable
+ * 11-12: fbr1_size
+ * 13: fbr1_enable
+ * 14: unused
+ * 15: pkt_drop_disable
+ * 16: pkt_done_flush
+ * 17: halt_status
+ * 18-31: unused
+ */
+#define ET_RXDMA_CSR_HALT 0x0001
+#define ET_RXDMA_CSR_FBR0_SIZE_LO 0x0100
+#define ET_RXDMA_CSR_FBR0_SIZE_HI 0x0200
+#define ET_RXDMA_CSR_FBR0_ENABLE 0x0400
+#define ET_RXDMA_CSR_FBR1_SIZE_LO 0x0800
+#define ET_RXDMA_CSR_FBR1_SIZE_HI 0x1000
+#define ET_RXDMA_CSR_FBR1_ENABLE 0x2000
+#define ET_RXDMA_CSR_HALT_STATUS 0x00020000
+
+/*
+ * structure for dma writeback lo reg in rxdma address map
+ * located at address 0x2004
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for dma writeback hi reg in rxdma address map
+ * located at address 0x2008
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for number of packets done reg in rxdma address map
+ * located at address 0x200C
+ *
+ * 31-8: unused
+ * 7-0: num done
+ */
+
+/*
+ * structure for max packet time reg in rxdma address map
+ * located at address 0x2010
+ *
+ * 31-18: unused
+ * 17-0: time done
+ */
+
+/*
+ * structure for rx queue read address reg in rxdma address map
+ * located at address 0x2014
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for rx queue read address external reg in rxdma address map
+ * located at address 0x2018
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for rx queue write address reg in rxdma address map
+ * located at address 0x201C
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for packet status ring base address lo reg in rxdma address map
+ * located at address 0x2020
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for packet status ring base address hi reg in rxdma address map
+ * located at address 0x2024
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for packet status ring number of descriptors reg in rxdma address
+ * map. Located at address 0x2028
+ *
+ * 31-12: unused
+ * 11-0: psr ndes
+ */
+#define ET_RXDMA_PSR_NUM_DES_MASK 0xFFF
+
+/*
+ * structure for packet status ring available offset reg in rxdma address map
+ * located at address 0x202C
+ *
+ * 31-13: unused
+ * 12: psr avail wrap
+ * 11-0: psr avail
+ */
+
+/*
+ * structure for packet status ring full offset reg in rxdma address map
+ * located at address 0x2030
+ *
+ * 31-13: unused
+ * 12: psr full wrap
+ * 11-0: psr full
+ */
+
+/*
+ * structure for packet status ring access index reg in rxdma address map
+ * located at address 0x2034
+ *
+ * 31-5: unused
+ * 4-0: psr_ai
+ */
+
+/*
+ * structure for packet status ring minimum descriptors reg in rxdma address
+ * map. Located at address 0x2038
+ *
+ * 31-12: unused
+ * 11-0: psr_min
+ */
+
+/*
+ * structure for free buffer ring base lo address reg in rxdma address map
+ * located at address 0x203C
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for free buffer ring base hi address reg in rxdma address map
+ * located at address 0x2040
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for free buffer ring number of descriptors reg in rxdma address
+ * map. Located at address 0x2044
+ *
+ * 31-10: unused
+ * 9-0: fbr ndesc
+ */
+
+/*
+ * structure for free buffer ring 0 available offset reg in rxdma address map
+ * located at address 0x2048
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for free buffer ring 0 full offset reg in rxdma address map
+ * located at address 0x204C
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for free buffer cache 0 full offset reg in rxdma address map
+ * located at address 0x2050
+ *
+ * 31-5: unused
+ * 4-0: fbc rdi
+ */
+
+/*
+ * structure for free buffer ring 0 minimum descriptor reg in rxdma address map
+ * located at address 0x2054
+ *
+ * 31-10: unused
+ * 9-0: fbr min
+ */
+
+/*
+ * structure for free buffer ring 1 base address lo reg in rxdma address map
+ * located at address 0x2058 - 0x205C
+ * Defined earlier (RXDMA_FBR_BASE_LO_t and RXDMA_FBR_BASE_HI_t)
+ */
+
+/*
+ * structure for free buffer ring 1 number of descriptors reg in rxdma address
+ * map. Located at address 0x2060
+ * Defined earlier (RXDMA_FBR_NUM_DES_t)
+ */
+
+/*
+ * structure for free buffer ring 1 available offset reg in rxdma address map
+ * located at address 0x2064
+ * Defined Earlier (RXDMA_FBR_AVAIL_OFFSET_t)
+ */
+
+/*
+ * structure for free buffer ring 1 full offset reg in rxdma address map
+ * located at address 0x2068
+ * Defined Earlier (RXDMA_FBR_FULL_OFFSET_t)
+ */
+
+/*
+ * structure for free buffer cache 1 read index reg in rxdma address map
+ * located at address 0x206C
+ * Defined Earlier (RXDMA_FBC_RD_INDEX_t)
+ */
+
+/*
+ * structure for free buffer ring 1 minimum descriptor reg in rxdma address map
+ * located at address 0x2070
+ * Defined Earlier (RXDMA_FBR_MIN_DES_t)
+ */
+
+/*
+ * Rx DMA Module of JAGCore Address Mapping
+ * Located at address 0x2000
+ */
+struct rxdma_regs { /* Location: */
+ u32 csr; /* 0x2000 */
+ u32 dma_wb_base_lo; /* 0x2004 */
+ u32 dma_wb_base_hi; /* 0x2008 */
+ u32 num_pkt_done; /* 0x200C */
+ u32 max_pkt_time; /* 0x2010 */
+ u32 rxq_rd_addr; /* 0x2014 */
+ u32 rxq_rd_addr_ext; /* 0x2018 */
+ u32 rxq_wr_addr; /* 0x201C */
+ u32 psr_base_lo; /* 0x2020 */
+ u32 psr_base_hi; /* 0x2024 */
+ u32 psr_num_des; /* 0x2028 */
+ u32 psr_avail_offset; /* 0x202C */
+ u32 psr_full_offset; /* 0x2030 */
+ u32 psr_access_index; /* 0x2034 */
+ u32 psr_min_des; /* 0x2038 */
+ u32 fbr0_base_lo; /* 0x203C */
+ u32 fbr0_base_hi; /* 0x2040 */
+ u32 fbr0_num_des; /* 0x2044 */
+ u32 fbr0_avail_offset; /* 0x2048 */
+ u32 fbr0_full_offset; /* 0x204C */
+ u32 fbr0_rd_index; /* 0x2050 */
+ u32 fbr0_min_des; /* 0x2054 */
+ u32 fbr1_base_lo; /* 0x2058 */
+ u32 fbr1_base_hi; /* 0x205C */
+ u32 fbr1_num_des; /* 0x2060 */
+ u32 fbr1_avail_offset; /* 0x2064 */
+ u32 fbr1_full_offset; /* 0x2068 */
+ u32 fbr1_rd_index; /* 0x206C */
+ u32 fbr1_min_des; /* 0x2070 */
+};
+
+/* END OF RXDMA REGISTER ADDRESS MAP */
+
+/* START OF TXMAC REGISTER ADDRESS MAP */
+/*
+ * structure for control reg in txmac address map
+ * located at address 0x3000
+ *
+ * bits
+ * 31-8: unused
+ * 7: cklseg_disable
+ * 6: ckbcnt_disable
+ * 5: cksegnum
+ * 4: async_disable
+ * 3: fc_disable
+ * 2: mcif_disable
+ * 1: mif_disable
+ * 0: txmac_en
+ */
+#define ET_TX_CTRL_FC_DISABLE 0x0008
+#define ET_TX_CTRL_TXMAC_ENABLE 0x0001
+
+/*
+ * structure for shadow pointer reg in txmac address map
+ * located at address 0x3004
+ * 31-27: reserved
+ * 26-16: txq rd ptr
+ * 15-11: reserved
+ * 10-0: txq wr ptr
+ */
+
+/*
+ * structure for error count reg in txmac address map
+ * located at address 0x3008
+ *
+ * 31-12: unused
+ * 11-8: reserved
+ * 7-4: txq_underrun
+ * 3-0: fifo_underrun
+ */
+
+/*
+ * structure for max fill reg in txmac address map
+ * located at address 0x300C
+ * 31-12: unused
+ * 11-0: max fill
+ */
+
+/*
+ * structure for cf parameter reg in txmac address map
+ * located at address 0x3010
+ * 31-16: cfep
+ * 15-0: cfpt
+ */
+
+/*
+ * structure for tx test reg in txmac address map
+ * located at address 0x3014
+ * 31-17: unused
+ * 16: reserved
+ * 15: txtest_en
+ * 14-11: unused
+ * 10-0: txq test pointer
+ */
+
+/*
+ * structure for error reg in txmac address map
+ * located at address 0x3018
+ *
+ * 31-9: unused
+ * 8: fifo_underrun
+ * 7-6: unused
+ * 5: ctrl2_err
+ * 4: txq_underrun
+ * 3: bcnt_err
+ * 2: lseg_err
+ * 1: segnum_err
+ * 0: seg0_err
+ */
+
+/*
+ * structure for error interrupt reg in txmac address map
+ * located at address 0x301C
+ *
+ * 31-9: unused
+ * 8: fifo_underrun
+ * 7-6: unused
+ * 5: ctrl2_err
+ * 4: txq_underrun
+ * 3: bcnt_err
+ * 2: lseg_err
+ * 1: segnum_err
+ * 0: seg0_err
+ */
+
+/*
+ * structure for error interrupt reg in txmac address map
+ * located at address 0x3020
+ *
+ * 31-2: unused
+ * 1: bp_req
+ * 0: bp_xonxoff
+ */
+
+/*
+ * Tx MAC Module of JAGCore Address Mapping
+ */
+struct txmac_regs { /* Location: */
+ u32 ctl; /* 0x3000 */
+ u32 shadow_ptr; /* 0x3004 */
+ u32 err_cnt; /* 0x3008 */
+ u32 max_fill; /* 0x300C */
+ u32 cf_param; /* 0x3010 */
+ u32 tx_test; /* 0x3014 */
+ u32 err; /* 0x3018 */
+ u32 err_int; /* 0x301C */
+ u32 bp_ctrl; /* 0x3020 */
+};
+
+/* END OF TXMAC REGISTER ADDRESS MAP */
+
+/* START OF RXMAC REGISTER ADDRESS MAP */
+
+/*
+ * structure for rxmac control reg in rxmac address map
+ * located at address 0x4000
+ *
+ * 31-7: reserved
+ * 6: rxmac_int_disable
+ * 5: async_disable
+ * 4: mif_disable
+ * 3: wol_disable
+ * 2: pkt_filter_disable
+ * 1: mcif_disable
+ * 0: rxmac_en
+ */
+#define ET_RX_CTRL_WOL_DISABLE 0x0008
+#define ET_RX_CTRL_RXMAC_ENABLE 0x0001
+
+/*
+ * structure for Wake On Lan Control and CRC 0 reg in rxmac address map
+ * located at address 0x4004
+ * 31-16: crc
+ * 15-12: reserved
+ * 11: ignore_pp
+ * 10: ignore_mp
+ * 9: clr_intr
+ * 8: ignore_link_chg
+ * 7: ignore_uni
+ * 6: ignore_multi
+ * 5: ignore_broad
+ * 4-0: valid_crc 4-0
+ */
+
+/*
+ * structure for CRC 1 and CRC 2 reg in rxmac address map
+ * located at address 0x4008
+ *
+ * 31-16: crc2
+ * 15-0: crc1
+ */
+
+/*
+ * structure for CRC 3 and CRC 4 reg in rxmac address map
+ * located at address 0x400C
+ *
+ * 31-16: crc4
+ * 15-0: crc3
+ */
+
+/*
+ * structure for Wake On Lan Source Address Lo reg in rxmac address map
+ * located at address 0x4010
+ *
+ * 31-24: sa3
+ * 23-16: sa4
+ * 15-8: sa5
+ * 7-0: sa6
+ */
+#define ET_RX_WOL_LO_SA3_SHIFT 24
+#define ET_RX_WOL_LO_SA4_SHIFT 16
+#define ET_RX_WOL_LO_SA5_SHIFT 8
+
+/*
+ * structure for Wake On Lan Source Address Hi reg in rxmac address map
+ * located at address 0x4014
+ *
+ * 31-16: reserved
+ * 15-8: sa1
+ * 7-0: sa2
+ */
+#define ET_RX_WOL_HI_SA1_SHIFT 8
+
+/*
+ * structure for Wake On Lan mask reg in rxmac address map
+ * located at address 0x4018 - 0x4064
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for Unicast Packet Filter Address 1 reg in rxmac address map
+ * located at address 0x4068
+ *
+ * 31-24: addr1_3
+ * 23-16: addr1_4
+ * 15-8: addr1_5
+ * 7-0: addr1_6
+ */
+#define ET_RX_UNI_PF_ADDR1_3_SHIFT 24
+#define ET_RX_UNI_PF_ADDR1_4_SHIFT 16
+#define ET_RX_UNI_PF_ADDR1_5_SHIFT 8
+
+/*
+ * structure for Unicast Packet Filter Address 2 reg in rxmac address map
+ * located at address 0x406C
+ *
+ * 31-24: addr2_3
+ * 23-16: addr2_4
+ * 15-8: addr2_5
+ * 7-0: addr2_6
+ */
+#define ET_RX_UNI_PF_ADDR2_3_SHIFT 24
+#define ET_RX_UNI_PF_ADDR2_4_SHIFT 16
+#define ET_RX_UNI_PF_ADDR2_5_SHIFT 8
+
+/*
+ * structure for Unicast Packet Filter Address 1 & 2 reg in rxmac address map
+ * located at address 0x4070
+ *
+ * 31-24: addr2_1
+ * 23-16: addr2_2
+ * 15-8: addr1_1
+ * 7-0: addr1_2
+ */
+#define ET_RX_UNI_PF_ADDR2_1_SHIFT 24
+#define ET_RX_UNI_PF_ADDR2_2_SHIFT 16
+#define ET_RX_UNI_PF_ADDR1_1_SHIFT 8
+
+/*
+ * structure for Multicast Hash reg in rxmac address map
+ * located at address 0x4074 - 0x4080
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for Packet Filter Control reg in rxmac address map
+ * located at address 0x4084
+ *
+ * 31-23: unused
+ * 22-16: min_pkt_size
+ * 15-4: unused
+ * 3: filter_frag_en
+ * 2: filter_uni_en
+ * 1: filter_multi_en
+ * 0: filter_broad_en
+ */
+#define ET_RX_PFCTRL_MIN_PKT_SZ_SHIFT 16
+#define ET_RX_PFCTRL_FRAG_FILTER_ENABLE 0x0008
+#define ET_RX_PFCTRL_UNICST_FILTER_ENABLE 0x0004
+#define ET_RX_PFCTRL_MLTCST_FILTER_ENABLE 0x0002
+#define ET_RX_PFCTRL_BRDCST_FILTER_ENABLE 0x0001
+
+/*
+ * structure for Memory Controller Interface Control Max Segment reg in rxmac
+ * address map. Located at address 0x4088
+ *
+ * 31-10: reserved
+ * 9-2: max_size
+ * 1: fc_en
+ * 0: seg_en
+ */
+#define ET_RX_MCIF_CTRL_MAX_SEG_SIZE_SHIFT 2
+#define ET_RX_MCIF_CTRL_MAX_SEG_FC_ENABLE 0x0002
+#define ET_RX_MCIF_CTRL_MAX_SEG_ENABLE 0x0001
+
+/*
+ * structure for Memory Controller Interface Water Mark reg in rxmac address
+ * map. Located at address 0x408C
+ *
+ * 31-26: unused
+ * 25-16: mark_hi
+ * 15-10: unused
+ * 9-0: mark_lo
+ */
+
+/*
+ * structure for Rx Queue Dialog reg in rxmac address map.
+ * located at address 0x4090
+ *
+ * 31-26: reserved
+ * 25-16: rd_ptr
+ * 15-10: reserved
+ * 9-0: wr_ptr
+ */
+
+/*
+ * structure for space available reg in rxmac address map.
+ * located at address 0x4094
+ *
+ * 31-17: reserved
+ * 16: space_avail_en
+ * 15-10: reserved
+ * 9-0: space_avail
+ */
+
+/*
+ * structure for management interface reg in rxmac address map.
+ * located at address 0x4098
+ *
+ * 31-18: reserved
+ * 17: drop_pkt_en
+ * 16-0: drop_pkt_mask
+ */
+
+/*
+ * structure for Error reg in rxmac address map.
+ * located at address 0x409C
+ *
+ * 31-4: unused
+ * 3: mif
+ * 2: async
+ * 1: pkt_filter
+ * 0: mcif
+ */
+
+/*
+ * Rx MAC Module of JAGCore Address Mapping
+ */
+struct rxmac_regs { /* Location: */
+ u32 ctrl; /* 0x4000 */
+ u32 crc0; /* 0x4004 */
+ u32 crc12; /* 0x4008 */
+ u32 crc34; /* 0x400C */
+ u32 sa_lo; /* 0x4010 */
+ u32 sa_hi; /* 0x4014 */
+ u32 mask0_word0; /* 0x4018 */
+ u32 mask0_word1; /* 0x401C */
+ u32 mask0_word2; /* 0x4020 */
+ u32 mask0_word3; /* 0x4024 */
+ u32 mask1_word0; /* 0x4028 */
+ u32 mask1_word1; /* 0x402C */
+ u32 mask1_word2; /* 0x4030 */
+ u32 mask1_word3; /* 0x4034 */
+ u32 mask2_word0; /* 0x4038 */
+ u32 mask2_word1; /* 0x403C */
+ u32 mask2_word2; /* 0x4040 */
+ u32 mask2_word3; /* 0x4044 */
+ u32 mask3_word0; /* 0x4048 */
+ u32 mask3_word1; /* 0x404C */
+ u32 mask3_word2; /* 0x4050 */
+ u32 mask3_word3; /* 0x4054 */
+ u32 mask4_word0; /* 0x4058 */
+ u32 mask4_word1; /* 0x405C */
+ u32 mask4_word2; /* 0x4060 */
+ u32 mask4_word3; /* 0x4064 */
+ u32 uni_pf_addr1; /* 0x4068 */
+ u32 uni_pf_addr2; /* 0x406C */
+ u32 uni_pf_addr3; /* 0x4070 */
+ u32 multi_hash1; /* 0x4074 */
+ u32 multi_hash2; /* 0x4078 */
+ u32 multi_hash3; /* 0x407C */
+ u32 multi_hash4; /* 0x4080 */
+ u32 pf_ctrl; /* 0x4084 */
+ u32 mcif_ctrl_max_seg; /* 0x4088 */
+ u32 mcif_water_mark; /* 0x408C */
+ u32 rxq_diag; /* 0x4090 */
+ u32 space_avail; /* 0x4094 */
+
+ u32 mif_ctrl; /* 0x4098 */
+ u32 err_reg; /* 0x409C */
+};
+
+/* END OF RXMAC REGISTER ADDRESS MAP */
+
+/* START OF MAC REGISTER ADDRESS MAP */
+/*
+ * structure for configuration #1 reg in mac address map.
+ * located at address 0x5000
+ *
+ * 31: soft reset
+ * 30: sim reset
+ * 29-20: reserved
+ * 19: reset rx mc
+ * 18: reset tx mc
+ * 17: reset rx func
+ * 16: reset tx fnc
+ * 15-9: reserved
+ * 8: loopback
+ * 7-6: reserved
+ * 5: rx flow
+ * 4: tx flow
+ * 3: syncd rx en
+ * 2: rx enable
+ * 1: syncd tx en
+ * 0: tx enable
+ */
+#define ET_MAC_CFG1_SOFT_RESET 0x80000000
+#define ET_MAC_CFG1_SIM_RESET 0x40000000
+#define ET_MAC_CFG1_RESET_RXMC 0x00080000
+#define ET_MAC_CFG1_RESET_TXMC 0x00040000
+#define ET_MAC_CFG1_RESET_RXFUNC 0x00020000
+#define ET_MAC_CFG1_RESET_TXFUNC 0x00010000
+#define ET_MAC_CFG1_LOOPBACK 0x00000100
+#define ET_MAC_CFG1_RX_FLOW 0x00000020
+#define ET_MAC_CFG1_TX_FLOW 0x00000010
+#define ET_MAC_CFG1_RX_ENABLE 0x00000004
+#define ET_MAC_CFG1_TX_ENABLE 0x00000001
+#define ET_MAC_CFG1_WAIT 0x0000000A /* RX & TX syncd */
+
+/*
+ * structure for configuration #2 reg in mac address map.
+ * located at address 0x5004
+ * 31-16: reserved
+ * 15-12: preamble
+ * 11-10: reserved
+ * 9-8: if mode
+ * 7-6: reserved
+ * 5: huge frame
+ * 4: length check
+ * 3: undefined
+ * 2: pad crc
+ * 1: crc enable
+ * 0: full duplex
+ */
+#define ET_MAC_CFG2_PREAMBLE_SHIFT 12
+#define ET_MAC_CFG2_IFMODE_MASK 0x0300
+#define ET_MAC_CFG2_IFMODE_1000 0x0200
+#define ET_MAC_CFG2_IFMODE_100 0x0100
+#define ET_MAC_CFG2_IFMODE_HUGE_FRAME 0x0020
+#define ET_MAC_CFG2_IFMODE_LEN_CHECK 0x0010
+#define ET_MAC_CFG2_IFMODE_PAD_CRC 0x0004
+#define ET_MAC_CFG2_IFMODE_CRC_ENABLE 0x0002
+#define ET_MAC_CFG2_IFMODE_FULL_DPLX 0x0001
+
+/*
+ * structure for Interpacket gap reg in mac address map.
+ * located at address 0x5008
+ *
+ * 31: reserved
+ * 30-24: non B2B ipg 1
+ * 23: undefined
+ * 22-16: non B2B ipg 2
+ * 15-8: Min ifg enforce
+ * 7-0: B2B ipg
+ *
+ * structure for half duplex reg in mac address map.
+ * located at address 0x500C
+ * 31-24: reserved
+ * 23-20: Alt BEB trunc
+ * 19: Alt BEB enable
+ * 18: BP no backoff
+ * 17: no backoff
+ * 16: excess defer
+ * 15-12: re-xmit max
+ * 11-10: reserved
+ * 9-0: collision window
+ */
+
+/*
+ * structure for Maximum Frame Length reg in mac address map.
+ * located at address 0x5010: bits 0-15 hold the length.
+ */
+
+/*
+ * structure for Reserve 1 reg in mac address map.
+ * located at address 0x5014 - 0x5018
+ * Defined earlier (u32)
+ */
+
+/*
+ * structure for Test reg in mac address map.
+ * located at address 0x501C
+ * test: bits 0-2, rest unused
+ */
+
+/*
+ * structure for MII Management Configuration reg in mac address map.
+ * located at address 0x5020
+ *
+ * 31: reset MII mgmt
+ * 30-6: unused
+ * 5: scan auto increment
+ * 4: preamble suppress
+ * 3: undefined
+ * 2-0: mgmt clock reset
+ */
+#define ET_MAC_MIIMGMT_CLK_RST 0x0007
+
+/*
+ * structure for MII Management Command reg in mac address map.
+ * located at address 0x5024
+ * bit 1: scan cycle
+ * bit 0: read cycle
+ */
+
+/*
+ * structure for MII Management Address reg in mac address map.
+ * located at address 0x5028
+ * 31-13: reserved
+ * 12-8: phy addr
+ * 7-5: reserved
+ * 4-0: register
+ */
+#define ET_MAC_MII_ADDR(phy, reg) ((phy) << 8 | (reg))
+
+/*
+ * structure for MII Management Control reg in mac address map.
+ * located at address 0x502C
+ * 31-16: reserved
+ * 15-0: phy control
+ */
+
+/*
+ * structure for MII Management Status reg in mac address map.
+ * located at address 0x5030
+ * 31-16: reserved
+ * 15-0: phy control
+ */
+#define ET_MAC_MIIMGMT_STAT_PHYCRTL_MASK 0xFFFF
+
+/*
+ * structure for MII Management Indicators reg in mac address map.
+ * located at address 0x5034
+ * 31-3: reserved
+ * 2: not valid
+ * 1: scanning
+ * 0: busy
+ */
+#define ET_MAC_MGMT_BUSY 0x00000001 /* busy */
+#define ET_MAC_MGMT_WAIT 0x00000005 /* busy | not valid */
+
+/*
+ * structure for Interface Control reg in mac address map.
+ * located at address 0x5038
+ *
+ * 31: reset if module
+ * 30-28: reserved
+ * 27: tbi mode
+ * 26: ghd mode
+ * 25: lhd mode
+ * 24: phy mode
+ * 23: reset per mii
+ * 22-17: reserved
+ * 16: speed
+ * 15: reset pe100x
+ * 14-11: reserved
+ * 10: force quiet
+ * 9: no cipher
+ * 8: disable link fail
+ * 7: reset gpsi
+ * 6-1: reserved
+ * 0: enable jabber protection
+ */
+#define ET_MAC_IFCTRL_GHDMODE (1 << 26)
+#define ET_MAC_IFCTRL_PHYMODE (1 << 24)
+
+/*
+ * structure for Interface Status reg in mac address map.
+ * located at address 0x503C
+ *
+ * 31-10: reserved
+ * 9: excess_defer
+ * 8: clash
+ * 7: phy_jabber
+ * 6: phy_link_ok
+ * 5: phy_full_duplex
+ * 4: phy_speed
+ * 3: pe100x_link_fail
+ * 2: pe10t_loss_carrier
+ * 1: pe10t_sqe_error
+ * 0: pe10t_jabber
+ */
+
+/*
+ * structure for Mac Station Address, Part 1 reg in mac address map.
+ * located at address 0x5040
+ *
+ * 31-24: Octet6
+ * 23-16: Octet5
+ * 15-8: Octet4
+ * 7-0: Octet3
+ */
+#define ET_MAC_STATION_ADDR1_OC6_SHIFT 24
+#define ET_MAC_STATION_ADDR1_OC5_SHIFT 16
+#define ET_MAC_STATION_ADDR1_OC4_SHIFT 8
+
+/*
+ * structure for Mac Station Address, Part 2 reg in mac address map.
+ * located at address 0x5044
+ *
+ * 31-24: Octet2
+ * 23-16: Octet1
+ * 15-0: reserved
+ */
+#define ET_MAC_STATION_ADDR2_OC2_SHIFT 24
+#define ET_MAC_STATION_ADDR2_OC1_SHIFT 16
+
+/*
+ * MAC Module of JAGCore Address Mapping
+ */
+struct mac_regs { /* Location: */
+ u32 cfg1; /* 0x5000 */
+ u32 cfg2; /* 0x5004 */
+ u32 ipg; /* 0x5008 */
+ u32 hfdp; /* 0x500C */
+ u32 max_fm_len; /* 0x5010 */
+ u32 rsv1; /* 0x5014 */
+ u32 rsv2; /* 0x5018 */
+ u32 mac_test; /* 0x501C */
+ u32 mii_mgmt_cfg; /* 0x5020 */
+ u32 mii_mgmt_cmd; /* 0x5024 */
+ u32 mii_mgmt_addr; /* 0x5028 */
+ u32 mii_mgmt_ctrl; /* 0x502C */
+ u32 mii_mgmt_stat; /* 0x5030 */
+ u32 mii_mgmt_indicator; /* 0x5034 */
+ u32 if_ctrl; /* 0x5038 */
+ u32 if_stat; /* 0x503C */
+ u32 station_addr_1; /* 0x5040 */
+ u32 station_addr_2; /* 0x5044 */
+};
+
+/* END OF MAC REGISTER ADDRESS MAP */
+
+/* START OF MAC STAT REGISTER ADDRESS MAP */
+/*
+ * structure for Carry Register One and it's Mask Register reg located in mac
+ * stat address map address 0x6130 and 0x6138.
+ *
+ * 31: tr64
+ * 30: tr127
+ * 29: tr255
+ * 28: tr511
+ * 27: tr1k
+ * 26: trmax
+ * 25: trmgv
+ * 24-17: unused
+ * 16: rbyt
+ * 15: rpkt
+ * 14: rfcs
+ * 13: rmca
+ * 12: rbca
+ * 11: rxcf
+ * 10: rxpf
+ * 9: rxuo
+ * 8: raln
+ * 7: rflr
+ * 6: rcde
+ * 5: rcse
+ * 4: rund
+ * 3: rovr
+ * 2: rfrg
+ * 1: rjbr
+ * 0: rdrp
+ */
+
+/*
+ * structure for Carry Register Two Mask Register reg in mac stat address map.
+ * located at address 0x613C
+ *
+ * 31-20: unused
+ * 19: tjbr
+ * 18: tfcs
+ * 17: txcf
+ * 16: tovr
+ * 15: tund
+ * 14: trfg
+ * 13: tbyt
+ * 12: tpkt
+ * 11: tmca
+ * 10: tbca
+ * 9: txpf
+ * 8: tdfr
+ * 7: tedf
+ * 6: tscl
+ * 5: tmcl
+ * 4: tlcl
+ * 3: txcl
+ * 2: tncl
+ * 1: tpfh
+ * 0: tdrp
+ */
+
+/*
+ * MAC STATS Module of JAGCore Address Mapping
+ */
+struct macstat_regs { /* Location: */
+ u32 pad[32]; /* 0x6000 - 607C */
+
+ /* counters */
+ u32 txrx_0_64_byte_frames; /* 0x6080 */
+ u32 txrx_65_127_byte_frames; /* 0x6084 */
+ u32 txrx_128_255_byte_frames; /* 0x6088 */
+ u32 txrx_256_511_byte_frames; /* 0x608C */
+ u32 txrx_512_1023_byte_frames; /* 0x6090 */
+ u32 txrx_1024_1518_byte_frames; /* 0x6094 */
+ u32 txrx_1519_1522_gvln_frames; /* 0x6098 */
+ u32 rx_bytes; /* 0x609C */
+ u32 rx_packets; /* 0x60A0 */
+ u32 rx_fcs_errs; /* 0x60A4 */
+ u32 rx_multicast_packets; /* 0x60A8 */
+ u32 rx_broadcast_packets; /* 0x60AC */
+ u32 rx_control_frames; /* 0x60B0 */
+ u32 rx_pause_frames; /* 0x60B4 */
+ u32 rx_unknown_opcodes; /* 0x60B8 */
+ u32 rx_align_errs; /* 0x60BC */
+ u32 rx_frame_len_errs; /* 0x60C0 */
+ u32 rx_code_errs; /* 0x60C4 */
+ u32 rx_carrier_sense_errs; /* 0x60C8 */
+ u32 rx_undersize_packets; /* 0x60CC */
+ u32 rx_oversize_packets; /* 0x60D0 */
+ u32 rx_fragment_packets; /* 0x60D4 */
+ u32 rx_jabbers; /* 0x60D8 */
+ u32 rx_drops; /* 0x60DC */
+ u32 tx_bytes; /* 0x60E0 */
+ u32 tx_packets; /* 0x60E4 */
+ u32 tx_multicast_packets; /* 0x60E8 */
+ u32 tx_broadcast_packets; /* 0x60EC */
+ u32 tx_pause_frames; /* 0x60F0 */
+ u32 tx_deferred; /* 0x60F4 */
+ u32 tx_excessive_deferred; /* 0x60F8 */
+ u32 tx_single_collisions; /* 0x60FC */
+ u32 tx_multiple_collisions; /* 0x6100 */
+ u32 tx_late_collisions; /* 0x6104 */
+ u32 tx_excessive_collisions; /* 0x6108 */
+ u32 tx_total_collisions; /* 0x610C */
+ u32 tx_pause_honored_frames; /* 0x6110 */
+ u32 tx_drops; /* 0x6114 */
+ u32 tx_jabbers; /* 0x6118 */
+ u32 tx_fcs_errs; /* 0x611C */
+ u32 tx_control_frames; /* 0x6120 */
+ u32 tx_oversize_frames; /* 0x6124 */
+ u32 tx_undersize_frames; /* 0x6128 */
+ u32 tx_fragments; /* 0x612C */
+ u32 carry_reg1; /* 0x6130 */
+ u32 carry_reg2; /* 0x6134 */
+ u32 carry_reg1_mask; /* 0x6138 */
+ u32 carry_reg2_mask; /* 0x613C */
+};
+
+/* END OF MAC STAT REGISTER ADDRESS MAP */
+
+/* START OF MMC REGISTER ADDRESS MAP */
+/*
+ * Main Memory Controller Control reg in mmc address map.
+ * located at address 0x7000
+ */
+#define ET_MMC_ENABLE 1
+#define ET_MMC_ARB_DISABLE 2
+#define ET_MMC_RXMAC_DISABLE 4
+#define ET_MMC_TXMAC_DISABLE 8
+#define ET_MMC_TXDMA_DISABLE 16
+#define ET_MMC_RXDMA_DISABLE 32
+#define ET_MMC_FORCE_CE 64
+
+/*
+ * Main Memory Controller Host Memory Access Address reg in mmc
+ * address map. Located at address 0x7004. Top 16 bits hold the address bits
+ */
+#define ET_SRAM_REQ_ACCESS 1
+#define ET_SRAM_WR_ACCESS 2
+#define ET_SRAM_IS_CTRL 4
+
+/*
+ * structure for Main Memory Controller Host Memory Access Data reg in mmc
+ * address map. Located at address 0x7008 - 0x7014
+ * Defined earlier (u32)
+ */
+
+/*
+ * Memory Control Module of JAGCore Address Mapping
+ */
+struct mmc_regs { /* Location: */
+ u32 mmc_ctrl; /* 0x7000 */
+ u32 sram_access; /* 0x7004 */
+ u32 sram_word1; /* 0x7008 */
+ u32 sram_word2; /* 0x700C */
+ u32 sram_word3; /* 0x7010 */
+ u32 sram_word4; /* 0x7014 */
+};
+
+/* END OF MMC REGISTER ADDRESS MAP */
+
+/*
+ * JAGCore Address Mapping
+ */
+struct address_map {
+ struct global_regs global;
+ /* unused section of global address map */
+ u8 unused_global[4096 - sizeof(struct global_regs)];
+ struct txdma_regs txdma;
+ /* unused section of txdma address map */
+ u8 unused_txdma[4096 - sizeof(struct txdma_regs)];
+ struct rxdma_regs rxdma;
+ /* unused section of rxdma address map */
+ u8 unused_rxdma[4096 - sizeof(struct rxdma_regs)];
+ struct txmac_regs txmac;
+ /* unused section of txmac address map */
+ u8 unused_txmac[4096 - sizeof(struct txmac_regs)];
+ struct rxmac_regs rxmac;
+ /* unused section of rxmac address map */
+ u8 unused_rxmac[4096 - sizeof(struct rxmac_regs)];
+ struct mac_regs mac;
+ /* unused section of mac address map */
+ u8 unused_mac[4096 - sizeof(struct mac_regs)];
+ struct macstat_regs macstat;
+ /* unused section of mac stat address map */
+ u8 unused_mac_stat[4096 - sizeof(struct macstat_regs)];
+ struct mmc_regs mmc;
+ /* unused section of mmc address map */
+ u8 unused_mmc[4096 - sizeof(struct mmc_regs)];
+ /* unused section of address map */
+ u8 unused_[1015808];
+ u8 unused_exp_rom[4096]; /* MGS-size TBD */
+ u8 unused__[524288]; /* unused section of address map */
+};
+
+/*
+ * Defines for generic MII registers 0x00 -> 0x0F can be found in
+ * include/linux/mii.h
+ */
+/* some defines for modem registers that seem to be 'reserved' */
+#define PHY_INDEX_REG 0x10
+#define PHY_DATA_REG 0x11
+#define PHY_MPHY_CONTROL_REG 0x12
+
+/* defines for specified registers */
+#define PHY_LOOPBACK_CONTROL 0x13 /* TRU_VMI_LOOPBACK_CONTROL_1_REG 19 */
+ /* TRU_VMI_LOOPBACK_CONTROL_2_REG 20 */
+#define PHY_REGISTER_MGMT_CONTROL 0x15 /* TRU_VMI_MI_SEQ_CONTROL_REG 21 */
+#define PHY_CONFIG 0x16 /* TRU_VMI_CONFIGURATION_REG 22 */
+#define PHY_PHY_CONTROL 0x17 /* TRU_VMI_PHY_CONTROL_REG 23 */
+#define PHY_INTERRUPT_MASK 0x18 /* TRU_VMI_INTERRUPT_MASK_REG 24 */
+#define PHY_INTERRUPT_STATUS 0x19 /* TRU_VMI_INTERRUPT_STATUS_REG 25 */
+#define PHY_PHY_STATUS 0x1A /* TRU_VMI_PHY_STATUS_REG 26 */
+#define PHY_LED_1 0x1B /* TRU_VMI_LED_CONTROL_1_REG 27 */
+#define PHY_LED_2 0x1C /* TRU_VMI_LED_CONTROL_2_REG 28 */
+ /* TRU_VMI_LINK_CONTROL_REG 29 */
+ /* TRU_VMI_TIMING_CONTROL_REG */
+
+/* MI Register 10: Gigabit basic mode status reg(Reg 0x0A) */
+#define ET_1000BT_MSTR_SLV 0x4000
+
+/* MI Register 16 - 18: Reserved Reg(0x10-0x12) */
+
+/* MI Register 19: Loopback Control Reg(0x13)
+ * 15: mii_en
+ * 14: pcs_en
+ * 13: pmd_en
+ * 12: all_digital_en
+ * 11: replica_en
+ * 10: line_driver_en
+ * 9-0: reserved
+ */
+
+/* MI Register 20: Reserved Reg(0x14) */
+
+/* MI Register 21: Management Interface Control Reg(0x15)
+ * 15-11: reserved
+ * 10-4: mi_error_count
+ * 3: reserved
+ * 2: ignore_10g_fr
+ * 1: reserved
+ * 0: preamble_suppress_en
+ */
+
+/* MI Register 22: PHY Configuration Reg(0x16)
+ * 15: crs_tx_en
+ * 14: reserved
+ * 13-12: tx_fifo_depth
+ * 11-10: speed_downshift
+ * 9: pbi_detect
+ * 8: tbi_rate
+ * 7: alternate_np
+ * 6: group_mdio_en
+ * 5: tx_clock_en
+ * 4: sys_clock_en
+ * 3: reserved
+ * 2-0: mac_if_mode
+ */
+#define ET_PHY_CONFIG_TX_FIFO_DEPTH 0x3000
+
+#define ET_PHY_CONFIG_FIFO_DEPTH_8 0x0000
+#define ET_PHY_CONFIG_FIFO_DEPTH_16 0x1000
+#define ET_PHY_CONFIG_FIFO_DEPTH_32 0x2000
+#define ET_PHY_CONFIG_FIFO_DEPTH_64 0x3000
+
+/* MI Register 23: PHY CONTROL Reg(0x17)
+ * 15: reserved
+ * 14: tdr_en
+ * 13: reserved
+ * 12-11: downshift_attempts
+ * 10-6: reserved
+ * 5: jabber_10baseT
+ * 4: sqe_10baseT
+ * 3: tp_loopback_10baseT
+ * 2: preamble_gen_en
+ * 1: reserved
+ * 0: force_int
+ */
+
+/* MI Register 24: Interrupt Mask Reg(0x18)
+ * 15-10: reserved
+ * 9: mdio_sync_lost
+ * 8: autoneg_status
+ * 7: hi_bit_err
+ * 6: np_rx
+ * 5: err_counter_full
+ * 4: fifo_over_underflow
+ * 3: rx_status
+ * 2: link_status
+ * 1: automatic_speed
+ * 0: int_en
+ */
+
+/* MI Register 25: Interrupt Status Reg(0x19)
+ * 15-10: reserved
+ * 9: mdio_sync_lost
+ * 8: autoneg_status
+ * 7: hi_bit_err
+ * 6: np_rx
+ * 5: err_counter_full
+ * 4: fifo_over_underflow
+ * 3: rx_status
+ * 2: link_status
+ * 1: automatic_speed
+ * 0: int_en
+ */
+
+/* MI Register 26: PHY Status Reg(0x1A)
+ * 15: reserved
+ * 14-13: autoneg_fault
+ * 12: autoneg_status
+ * 11: mdi_x_status
+ * 10: polarity_status
+ * 9-8: speed_status
+ * 7: duplex_status
+ * 6: link_status
+ * 5: tx_status
+ * 4: rx_status
+ * 3: collision_status
+ * 2: autoneg_en
+ * 1: pause_en
+ * 0: asymmetric_dir
+ */
+#define ET_PHY_AUTONEG_STATUS 0x1000
+#define ET_PHY_POLARITY_STATUS 0x0400
+#define ET_PHY_SPEED_STATUS 0x0300
+#define ET_PHY_DUPLEX_STATUS 0x0080
+#define ET_PHY_LSTATUS 0x0040
+#define ET_PHY_AUTONEG_ENABLE 0x0020
+
+/* MI Register 27: LED Control Reg 1(0x1B)
+ * 15-14: reserved
+ * 13-12: led_dup_indicate
+ * 11-10: led_10baseT
+ * 9-8: led_collision
+ * 7-4: reserved
+ * 3-2: pulse_dur
+ * 1: pulse_stretch1
+ * 0: pulse_stretch0
+ */
+
+/* MI Register 28: LED Control Reg 2(0x1C)
+ * 15-12: led_link
+ * 11-8: led_tx_rx
+ * 7-4: led_100BaseTX
+ * 3-0: led_1000BaseT
+ */
+#define ET_LED2_LED_LINK 0xF000
+#define ET_LED2_LED_TXRX 0x0F00
+#define ET_LED2_LED_100TX 0x00F0
+#define ET_LED2_LED_1000T 0x000F
+
+/* defines for LED control reg 2 values */
+#define LED_VAL_1000BT 0x0
+#define LED_VAL_100BTX 0x1
+#define LED_VAL_10BT 0x2
+#define LED_VAL_1000BT_100BTX 0x3 /* 1000BT on, 100BTX blink */
+#define LED_VAL_LINKON 0x4
+#define LED_VAL_TX 0x5
+#define LED_VAL_RX 0x6
+#define LED_VAL_TXRX 0x7 /* TX or RX */
+#define LED_VAL_DUPLEXFULL 0x8
+#define LED_VAL_COLLISION 0x9
+#define LED_VAL_LINKON_ACTIVE 0xA /* Link on, activity blink */
+#define LED_VAL_LINKON_RECV 0xB /* Link on, receive blink */
+#define LED_VAL_DUPLEXFULL_COLLISION 0xC /* Duplex on, collision blink */
+#define LED_VAL_BLINK 0xD
+#define LED_VAL_ON 0xE
+#define LED_VAL_OFF 0xF
+
+#define LED_LINK_SHIFT 12
+#define LED_TXRX_SHIFT 8
+#define LED_100TX_SHIFT 4
+
+/* MI Register 29 - 31: Reserved Reg(0x1D - 0x1E) */
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 6e2d6fd..9d18a1c 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -24,8 +24,6 @@ menuconfig STAGING
if STAGING
-source "drivers/staging/et131x/Kconfig"
-
source "drivers/staging/slicoss/Kconfig"
source "drivers/staging/wlan-ng/Kconfig"
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 74c679e..8c56326 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -4,7 +4,6 @@
obj-$(CONFIG_STAGING) += staging.o
obj-y += media/
-obj-$(CONFIG_ET131X) += et131x/
obj-$(CONFIG_SLICOSS) += slicoss/
obj-$(CONFIG_PRISM2_USB) += wlan-ng/
obj-$(CONFIG_COMEDI) += comedi/
diff --git a/drivers/staging/et131x/Kconfig b/drivers/staging/et131x/Kconfig
deleted file mode 100644
index 8190f2a..0000000
--- a/drivers/staging/et131x/Kconfig
+++ /dev/null
@@ -1,10 +0,0 @@
-config ET131X
- tristate "Agere ET-1310 Gigabit Ethernet support"
- depends on PCI && NET && NETDEVICES
- select PHYLIB
- default n
- ---help---
- This driver supports Agere ET-1310 ethernet adapters.
-
- To compile this driver as a module, choose M here. The module
- will be called et131x.
diff --git a/drivers/staging/et131x/Makefile b/drivers/staging/et131x/Makefile
deleted file mode 100644
index 027ff94..0000000
--- a/drivers/staging/et131x/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the Agere ET-131x ethernet driver
-#
-
-obj-$(CONFIG_ET131X) += et131x.o
diff --git a/drivers/staging/et131x/README b/drivers/staging/et131x/README
deleted file mode 100644
index 13c8168..0000000
--- a/drivers/staging/et131x/README
+++ /dev/null
@@ -1,15 +0,0 @@
-This is a driver for the ET1310 network device.
-
-Based on the driver found at https://sourceforge.net/projects/et131x/
-
-Cleaned up immensely by Olaf Hartman and Christoph Hellwig <hch@xxxxxxxxxxxxx>
-
-Note, the powermanagement options were removed from the vendor provided
-driver as they did not build properly at the time.
-
-TODO:
-
-Please send patches to:
- Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
- Mark Einon <mark.einon@xxxxxxxxx>
-
diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
deleted file mode 100644
index 93afd61..0000000
--- a/drivers/staging/et131x/et131x.c
+++ /dev/null
@@ -1,4412 +0,0 @@
-/* Agere Systems Inc.
- * 10/100/1000 Base-T Ethernet Driver for the ET1301 and ET131x series MACs
- *
- * Copyright  2005 Agere Systems Inc.
- * All rights reserved.
- * http://www.agere.com
- *
- * Copyright (c) 2011 Mark Einon <mark.einon@xxxxxxxxx>
- *
- *------------------------------------------------------------------------------
- *
- * SOFTWARE LICENSE
- *
- * This software is provided subject to the following terms and conditions,
- * which you should read carefully before using the software. Using this
- * software indicates your acceptance of these terms and conditions. If you do
- * not agree with these terms and conditions, do not use the software.
- *
- * Copyright  2005 Agere Systems Inc.
- * All rights reserved.
- *
- * Redistribution and use in source or binary forms, with or without
- * modifications, are permitted provided that the following conditions are met:
- *
- * . Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following Disclaimer as comments in the code as
- * well as in the documentation and/or other materials provided with the
- * distribution.
- *
- * . Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following Disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * . Neither the name of Agere Systems Inc. nor the names of the contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * Disclaimer
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY
- * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
- * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-
-#include <linux/sched.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/ctype.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/in.h>
-#include <linux/delay.h>
-#include <linux/bitops.h>
-#include <linux/io.h>
-
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-#include <linux/ioport.h>
-#include <linux/crc32.h>
-#include <linux/random.h>
-#include <linux/phy.h>
-
-#include "et131x.h"
-
-MODULE_AUTHOR("Victor Soriano <vjsoriano@xxxxxxxxx>");
-MODULE_AUTHOR("Mark Einon <mark.einon@xxxxxxxxx>");
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_DESCRIPTION("10/100/1000 Base-T Ethernet Driver for the ET1310 by Agere Systems");
-
-/* EEPROM defines */
-#define MAX_NUM_REGISTER_POLLS 1000
-#define MAX_NUM_WRITE_RETRIES 2
-
-/* MAC defines */
-#define COUNTER_WRAP_16_BIT 0x10000
-#define COUNTER_WRAP_12_BIT 0x1000
-
-/* PCI defines */
-#define INTERNAL_MEM_SIZE 0x400 /* 1024 of internal memory */
-#define INTERNAL_MEM_RX_OFFSET 0x1FF /* 50% Tx, 50% Rx */
-
-/* ISR defines */
-/* For interrupts, normal running is:
- * rxdma_xfr_done, phy_interrupt, mac_stat_interrupt,
- * watchdog_interrupt & txdma_xfer_done
- *
- * In both cases, when flow control is enabled for either Tx or bi-direction,
- * we additional enable rx_fbr0_low and rx_fbr1_low, so we know when the
- * buffer rings are running low.
- */
-#define INT_MASK_DISABLE 0xffffffff
-
-/* NOTE: Masking out MAC_STAT Interrupt for now...
- * #define INT_MASK_ENABLE 0xfff6bf17
- * #define INT_MASK_ENABLE_NO_FLOW 0xfff6bfd7
- */
-#define INT_MASK_ENABLE 0xfffebf17
-#define INT_MASK_ENABLE_NO_FLOW 0xfffebfd7
-
-/* General defines */
-/* Packet and header sizes */
-#define NIC_MIN_PACKET_SIZE 60
-
-/* Multicast list size */
-#define NIC_MAX_MCAST_LIST 128
-
-/* Supported Filters */
-#define ET131X_PACKET_TYPE_DIRECTED 0x0001
-#define ET131X_PACKET_TYPE_MULTICAST 0x0002
-#define ET131X_PACKET_TYPE_BROADCAST 0x0004
-#define ET131X_PACKET_TYPE_PROMISCUOUS 0x0008
-#define ET131X_PACKET_TYPE_ALL_MULTICAST 0x0010
-
-/* Tx Timeout */
-#define ET131X_TX_TIMEOUT (1 * HZ)
-#define NIC_SEND_HANG_THRESHOLD 0
-
-/* MP_ADAPTER flags */
-#define FMP_ADAPTER_INTERRUPT_IN_USE 0x00000008
-
-/* MP_SHARED flags */
-#define FMP_ADAPTER_LOWER_POWER 0x00200000
-
-#define FMP_ADAPTER_NON_RECOVER_ERROR 0x00800000
-#define FMP_ADAPTER_HARDWARE_ERROR 0x04000000
-
-#define FMP_ADAPTER_FAIL_SEND_MASK 0x3ff00000
-
-/* Some offsets in PCI config space that are actually used. */
-#define ET1310_PCI_MAC_ADDRESS 0xA4
-#define ET1310_PCI_EEPROM_STATUS 0xB2
-#define ET1310_PCI_ACK_NACK 0xC0
-#define ET1310_PCI_REPLAY 0xC2
-#define ET1310_PCI_L0L1LATENCY 0xCF
-
-/* PCI Product IDs */
-#define ET131X_PCI_DEVICE_ID_GIG 0xED00 /* ET1310 1000 Base-T 8 */
-#define ET131X_PCI_DEVICE_ID_FAST 0xED01 /* ET1310 100 Base-T */
-
-/* Define order of magnitude converter */
-#define NANO_IN_A_MICRO 1000
-
-#define PARM_RX_NUM_BUFS_DEF 4
-#define PARM_RX_TIME_INT_DEF 10
-#define PARM_RX_MEM_END_DEF 0x2bc
-#define PARM_TX_TIME_INT_DEF 40
-#define PARM_TX_NUM_BUFS_DEF 4
-#define PARM_DMA_CACHE_DEF 0
-
-/* RX defines */
-#define FBR_CHUNKS 32
-#define MAX_DESC_PER_RING_RX 1024
-
-/* number of RFDs - default and min */
-#define RFD_LOW_WATER_MARK 40
-#define NIC_DEFAULT_NUM_RFD 1024
-#define NUM_FBRS 2
-
-#define MAX_PACKETS_HANDLED 256
-
-#define ALCATEL_MULTICAST_PKT 0x01000000
-#define ALCATEL_BROADCAST_PKT 0x02000000
-
-/* typedefs for Free Buffer Descriptors */
-struct fbr_desc {
- u32 addr_lo;
- u32 addr_hi;
- u32 word2; /* Bits 10-31 reserved, 0-9 descriptor */
-};
-
-/* Packet Status Ring Descriptors
- *
- * Word 0:
- *
- * top 16 bits are from the Alcatel Status Word as enumerated in
- * PE-MCXMAC Data Sheet IPD DS54 0210-1 (also IPD-DS80 0205-2)
- *
- * 0: hp hash pass
- * 1: ipa IP checksum assist
- * 2: ipp IP checksum pass
- * 3: tcpa TCP checksum assist
- * 4: tcpp TCP checksum pass
- * 5: wol WOL Event
- * 6: rxmac_error RXMAC Error Indicator
- * 7: drop Drop packet
- * 8: ft Frame Truncated
- * 9: jp Jumbo Packet
- * 10: vp VLAN Packet
- * 11-15: unused
- * 16: asw_prev_pkt_dropped e.g. IFG too small on previous
- * 17: asw_RX_DV_event short receive event detected
- * 18: asw_false_carrier_event bad carrier since last good packet
- * 19: asw_code_err one or more nibbles signalled as errors
- * 20: asw_CRC_err CRC error
- * 21: asw_len_chk_err frame length field incorrect
- * 22: asw_too_long frame length > 1518 bytes
- * 23: asw_OK valid CRC + no code error
- * 24: asw_multicast has a multicast address
- * 25: asw_broadcast has a broadcast address
- * 26: asw_dribble_nibble spurious bits after EOP
- * 27: asw_control_frame is a control frame
- * 28: asw_pause_frame is a pause frame
- * 29: asw_unsupported_op unsupported OP code
- * 30: asw_VLAN_tag VLAN tag detected
- * 31: asw_long_evt Rx long event
- *
- * Word 1:
- * 0-15: length length in bytes
- * 16-25: bi Buffer Index
- * 26-27: ri Ring Index
- * 28-31: reserved
- */
-struct pkt_stat_desc {
- u32 word0;
- u32 word1;
-};
-
-/* Typedefs for the RX DMA status word */
-
-/* rx status word 0 holds part of the status bits of the Rx DMA engine
- * that get copied out to memory by the ET-1310. Word 0 is a 32 bit word
- * which contains the Free Buffer ring 0 and 1 available offset.
- *
- * bit 0-9 FBR1 offset
- * bit 10 Wrap flag for FBR1
- * bit 16-25 FBR0 offset
- * bit 26 Wrap flag for FBR0
- */
-
-/* RXSTAT_WORD1_t structure holds part of the status bits of the Rx DMA engine
- * that get copied out to memory by the ET-1310. Word 3 is a 32 bit word
- * which contains the Packet Status Ring available offset.
- *
- * bit 0-15 reserved
- * bit 16-27 PSRoffset
- * bit 28 PSRwrap
- * bit 29-31 unused
- */
-
-/* struct rx_status_block is a structure representing the status of the Rx
- * DMA engine it sits in free memory, and is pointed to by 0x101c / 0x1020
- */
-struct rx_status_block {
- u32 word0;
- u32 word1;
-};
-
-/* Structure for look-up table holding free buffer ring pointers, addresses
- * and state.
- */
-struct fbr_lookup {
- void *virt[MAX_DESC_PER_RING_RX];
- u32 bus_high[MAX_DESC_PER_RING_RX];
- u32 bus_low[MAX_DESC_PER_RING_RX];
- void *ring_virtaddr;
- dma_addr_t ring_physaddr;
- void *mem_virtaddrs[MAX_DESC_PER_RING_RX / FBR_CHUNKS];
- dma_addr_t mem_physaddrs[MAX_DESC_PER_RING_RX / FBR_CHUNKS];
- u32 local_full;
- u32 num_entries;
- dma_addr_t buffsize;
-};
-
-/* struct rx_ring is the structure representing the adaptor's local
- * reference(s) to the rings
- */
-struct rx_ring {
- struct fbr_lookup *fbr[NUM_FBRS];
- void *ps_ring_virtaddr;
- dma_addr_t ps_ring_physaddr;
- u32 local_psr_full;
- u32 psr_entries;
-
- struct rx_status_block *rx_status_block;
- dma_addr_t rx_status_bus;
-
- /* RECV */
- struct list_head recv_list;
- u32 num_ready_recv;
-
- u32 num_rfd;
-
- bool unfinished_receives;
-};
-
-/* TX defines */
-/* word 2 of the control bits in the Tx Descriptor ring for the ET-1310
- *
- * 0-15: length of packet
- * 16-27: VLAN tag
- * 28: VLAN CFI
- * 29-31: VLAN priority
- *
- * word 3 of the control bits in the Tx Descriptor ring for the ET-1310
- *
- * 0: last packet in the sequence
- * 1: first packet in the sequence
- * 2: interrupt the processor when this pkt sent
- * 3: Control word - no packet data
- * 4: Issue half-duplex backpressure : XON/XOFF
- * 5: send pause frame
- * 6: Tx frame has error
- * 7: append CRC
- * 8: MAC override
- * 9: pad packet
- * 10: Packet is a Huge packet
- * 11: append VLAN tag
- * 12: IP checksum assist
- * 13: TCP checksum assist
- * 14: UDP checksum assist
- */
-#define TXDESC_FLAG_LASTPKT 0x0001
-#define TXDESC_FLAG_FIRSTPKT 0x0002
-#define TXDESC_FLAG_INTPROC 0x0004
-
-/* struct tx_desc represents each descriptor on the ring */
-struct tx_desc {
- u32 addr_hi;
- u32 addr_lo;
- u32 len_vlan; /* control words how to xmit the */
- u32 flags; /* data (detailed above) */
-};
-
-/* The status of the Tx DMA engine it sits in free memory, and is pointed to
- * by 0x101c / 0x1020. This is a DMA10 type
- */
-
-/* TCB (Transmit Control Block: Host Side) */
-struct tcb {
- struct tcb *next; /* Next entry in ring */
- u32 count; /* Used to spot stuck/lost packets */
- u32 stale; /* Used to spot stuck/lost packets */
- struct sk_buff *skb; /* Network skb we are tied to */
- u32 index; /* Ring indexes */
- u32 index_start;
-};
-
-/* Structure representing our local reference(s) to the ring */
-struct tx_ring {
- /* TCB (Transmit Control Block) memory and lists */
- struct tcb *tcb_ring;
-
- /* List of TCBs that are ready to be used */
- struct tcb *tcb_qhead;
- struct tcb *tcb_qtail;
-
- /* list of TCBs that are currently being sent. NOTE that access to all
- * three of these (including used) are controlled via the
- * TCBSendQLock. This lock should be secured prior to incementing /
- * decrementing used, or any queue manipulation on send_head /
- * tail
- */
- struct tcb *send_head;
- struct tcb *send_tail;
- int used;
-
- /* The actual descriptor ring */
- struct tx_desc *tx_desc_ring;
- dma_addr_t tx_desc_ring_pa;
-
- /* send_idx indicates where we last wrote to in the descriptor ring. */
- u32 send_idx;
-
- /* The location of the write-back status block */
- u32 *tx_status;
- dma_addr_t tx_status_pa;
-
- /* Packets since the last IRQ: used for interrupt coalescing */
- int since_irq;
-};
-
-/* Do not change these values: if changed, then change also in respective
- * TXdma and Rxdma engines
- */
-#define NUM_DESC_PER_RING_TX 512 /* TX Do not change these values */
-#define NUM_TCB 64
-
-/* These values are all superseded by registry entries to facilitate tuning.
- * Once the desired performance has been achieved, the optimal registry values
- * should be re-populated to these #defines:
- */
-#define TX_ERROR_PERIOD 1000
-
-#define LO_MARK_PERCENT_FOR_PSR 15
-#define LO_MARK_PERCENT_FOR_RX 15
-
-/* RFD (Receive Frame Descriptor) */
-struct rfd {
- struct list_head list_node;
- struct sk_buff *skb;
- u32 len; /* total size of receive frame */
- u16 bufferindex;
- u8 ringindex;
-};
-
-/* Flow Control */
-#define FLOW_BOTH 0
-#define FLOW_TXONLY 1
-#define FLOW_RXONLY 2
-#define FLOW_NONE 3
-
-/* Struct to define some device statistics */
-struct ce_stats {
- /* MIB II variables
- *
- * NOTE: atomic_t types are only guaranteed to store 24-bits; if we
- * MUST have 32, then we'll need another way to perform atomic
- * operations
- */
- u32 multicast_pkts_rcvd;
- u32 rcvd_pkts_dropped;
-
- /* Tx Statistics. */
- u32 tx_underflows;
- u32 tx_collisions;
- u32 tx_excessive_collisions;
- u32 tx_first_collisions;
- u32 tx_late_collisions;
- u32 tx_max_pkt_errs;
- u32 tx_deferred;
-
- /* Rx Statistics. */
- u32 rx_overflows;
- u32 rx_length_errs;
- u32 rx_align_errs;
- u32 rx_crc_errs;
- u32 rx_code_violations;
- u32 rx_other_errs;
-
- u32 interrupt_status;
-};
-
-/* The private adapter structure */
-struct et131x_adapter {
- struct net_device *netdev;
- struct pci_dev *pdev;
- struct mii_bus *mii_bus;
- struct phy_device *phydev;
- struct napi_struct napi;
-
- /* Flags that indicate current state of the adapter */
- u32 flags;
-
- /* local link state, to determine if a state change has occurred */
- int link;
-
- /* Configuration */
- u8 rom_addr[ETH_ALEN];
- u8 addr[ETH_ALEN];
- bool has_eeprom;
- u8 eeprom_data[2];
-
- spinlock_t tcb_send_qlock; /* protects the tx_ring send tcb list */
- spinlock_t tcb_ready_qlock; /* protects the tx_ring ready tcb list */
- spinlock_t rcv_lock; /* protects the rx_ring receive list */
-
- /* Packet Filter and look ahead size */
- u32 packet_filter;
-
- /* multicast list */
- u32 multicast_addr_count;
- u8 multicast_list[NIC_MAX_MCAST_LIST][ETH_ALEN];
-
- /* Pointer to the device's PCI register space */
- struct address_map __iomem *regs;
-
- /* Registry parameters */
- u8 wanted_flow; /* Flow we want for 802.3x flow control */
- u32 registry_jumbo_packet; /* Max supported ethernet packet size */
-
- /* Derived from the registry: */
- u8 flow; /* flow control validated by the far-end */
-
- /* Minimize init-time */
- struct timer_list error_timer;
-
- /* variable putting the phy into coma mode when boot up with no cable
- * plugged in after 5 seconds
- */
- u8 boot_coma;
-
- /* Tx Memory Variables */
- struct tx_ring tx_ring;
-
- /* Rx Memory Variables */
- struct rx_ring rx_ring;
-
- /* Stats */
- struct ce_stats stats;
-};
-
-static int eeprom_wait_ready(struct pci_dev *pdev, u32 *status)
-{
- u32 reg;
- int i;
-
- /* 1. Check LBCIF Status Register for bits 6 & 3:2 all equal to 0 and
- * bits 7,1:0 both equal to 1, at least once after reset.
- * Subsequent operations need only to check that bits 1:0 are equal
- * to 1 prior to starting a single byte read/write
- */
- for (i = 0; i < MAX_NUM_REGISTER_POLLS; i++) {
- /* Read registers grouped in DWORD1 */
- if (pci_read_config_dword(pdev, LBCIF_DWORD1_GROUP, ®))
- return -EIO;
-
- /* I2C idle and Phy Queue Avail both true */
- if ((reg & 0x3000) == 0x3000) {
- if (status)
- *status = reg;
- return reg & 0xFF;
- }
- }
- return -ETIMEDOUT;
-}
-
-/* eeprom_write - Write a byte to the ET1310's EEPROM
- * @adapter: pointer to our private adapter structure
- * @addr: the address to write
- * @data: the value to write
- *
- * Returns 1 for a successful write.
- */
-static int eeprom_write(struct et131x_adapter *adapter, u32 addr, u8 data)
-{
- struct pci_dev *pdev = adapter->pdev;
- int index = 0;
- int retries;
- int err = 0;
- int writeok = 0;
- u32 status;
- u32 val = 0;
-
- /* For an EEPROM, an I2C single byte write is defined as a START
- * condition followed by the device address, EEPROM address, one byte
- * of data and a STOP condition. The STOP condition will trigger the
- * EEPROM's internally timed write cycle to the nonvolatile memory.
- * All inputs are disabled during this write cycle and the EEPROM will
- * not respond to any access until the internal write is complete.
- */
- err = eeprom_wait_ready(pdev, NULL);
- if (err < 0)
- return err;
-
- /* 2. Write to the LBCIF Control Register: bit 7=1, bit 6=1, bit 3=0,
- * and bits 1:0 both =0. Bit 5 should be set according to the
- * type of EEPROM being accessed (1=two byte addressing, 0=one
- * byte addressing).
- */
- if (pci_write_config_byte(pdev, LBCIF_CONTROL_REGISTER,
- LBCIF_CONTROL_LBCIF_ENABLE |
- LBCIF_CONTROL_I2C_WRITE))
- return -EIO;
-
- /* Prepare EEPROM address for Step 3 */
- for (retries = 0; retries < MAX_NUM_WRITE_RETRIES; retries++) {
- /* Write the address to the LBCIF Address Register */
- if (pci_write_config_dword(pdev, LBCIF_ADDRESS_REGISTER, addr))
- break;
- /* Write the data to the LBCIF Data Register (the I2C write
- * will begin).
- */
- if (pci_write_config_byte(pdev, LBCIF_DATA_REGISTER, data))
- break;
- /* Monitor bit 1:0 of the LBCIF Status Register. When bits
- * 1:0 are both equal to 1, the I2C write has completed and the
- * internal write cycle of the EEPROM is about to start.
- * (bits 1:0 = 01 is a legal state while waiting from both
- * equal to 1, but bits 1:0 = 10 is invalid and implies that
- * something is broken).
- */
- err = eeprom_wait_ready(pdev, &status);
- if (err < 0)
- return 0;
-
- /* Check bit 3 of the LBCIF Status Register. If equal to 1,
- * an error has occurred.Don't break here if we are revision
- * 1, this is so we do a blind write for load bug.
- */
- if ((status & LBCIF_STATUS_GENERAL_ERROR) &&
- adapter->pdev->revision == 0)
- break;
-
- /* Check bit 2 of the LBCIF Status Register. If equal to 1 an
- * ACK error has occurred on the address phase of the write.
- * This could be due to an actual hardware failure or the
- * EEPROM may still be in its internal write cycle from a
- * previous write. This write operation was ignored and must be
- *repeated later.
- */
- if (status & LBCIF_STATUS_ACK_ERROR) {
- /* This could be due to an actual hardware failure
- * or the EEPROM may still be in its internal write
- * cycle from a previous write. This write operation
- * was ignored and must be repeated later.
- */
- udelay(10);
- continue;
- }
-
- writeok = 1;
- break;
- }
-
- /* Set bit 6 of the LBCIF Control Register = 0.
- */
- udelay(10);
-
- while (1) {
- if (pci_write_config_byte(pdev, LBCIF_CONTROL_REGISTER,
- LBCIF_CONTROL_LBCIF_ENABLE))
- writeok = 0;
-
- /* Do read until internal ACK_ERROR goes away meaning write
- * completed
- */
- do {
- pci_write_config_dword(pdev,
- LBCIF_ADDRESS_REGISTER,
- addr);
- do {
- pci_read_config_dword(pdev,
- LBCIF_DATA_REGISTER,
- &val);
- } while ((val & 0x00010000) == 0);
- } while (val & 0x00040000);
-
- if ((val & 0xFF00) != 0xC000 || index == 10000)
- break;
- index++;
- }
- return writeok ? 0 : -EIO;
-}
-
-/* eeprom_read - Read a byte from the ET1310's EEPROM
- * @adapter: pointer to our private adapter structure
- * @addr: the address from which to read
- * @pdata: a pointer to a byte in which to store the value of the read
- * @eeprom_id: the ID of the EEPROM
- * @addrmode: how the EEPROM is to be accessed
- *
- * Returns 1 for a successful read
- */
-static int eeprom_read(struct et131x_adapter *adapter, u32 addr, u8 *pdata)
-{
- struct pci_dev *pdev = adapter->pdev;
- int err;
- u32 status;
-
- /* A single byte read is similar to the single byte write, with the
- * exception of the data flow:
- */
- err = eeprom_wait_ready(pdev, NULL);
- if (err < 0)
- return err;
- /* Write to the LBCIF Control Register: bit 7=1, bit 6=0, bit 3=0,
- * and bits 1:0 both =0. Bit 5 should be set according to the type
- * of EEPROM being accessed (1=two byte addressing, 0=one byte
- * addressing).
- */
- if (pci_write_config_byte(pdev, LBCIF_CONTROL_REGISTER,
- LBCIF_CONTROL_LBCIF_ENABLE))
- return -EIO;
- /* Write the address to the LBCIF Address Register (I2C read will
- * begin).
- */
- if (pci_write_config_dword(pdev, LBCIF_ADDRESS_REGISTER, addr))
- return -EIO;
- /* Monitor bit 0 of the LBCIF Status Register. When = 1, I2C read
- * is complete. (if bit 1 =1 and bit 0 stays = 0, a hardware failure
- * has occurred).
- */
- err = eeprom_wait_ready(pdev, &status);
- if (err < 0)
- return err;
- /* Regardless of error status, read data byte from LBCIF Data
- * Register.
- */
- *pdata = err;
- /* Check bit 2 of the LBCIF Status Register. If = 1,
- * then an error has occurred.
- */
- return (status & LBCIF_STATUS_ACK_ERROR) ? -EIO : 0;
-}
-
-static int et131x_init_eeprom(struct et131x_adapter *adapter)
-{
- struct pci_dev *pdev = adapter->pdev;
- u8 eestatus;
-
- /* We first need to check the EEPROM Status code located at offset
- * 0xB2 of config space
- */
- pci_read_config_byte(pdev, ET1310_PCI_EEPROM_STATUS, &eestatus);
-
- /* THIS IS A WORKAROUND:
- * I need to call this function twice to get my card in a
- * LG M1 Express Dual running. I tried also a msleep before this
- * function, because I thought there could be some time conditions
- * but it didn't work. Call the whole function twice also work.
- */
- if (pci_read_config_byte(pdev, ET1310_PCI_EEPROM_STATUS, &eestatus)) {
- dev_err(&pdev->dev,
- "Could not read PCI config space for EEPROM Status\n");
- return -EIO;
- }
-
- /* Determine if the error(s) we care about are present. If they are
- * present we need to fail.
- */
- if (eestatus & 0x4C) {
- int write_failed = 0;
-
- if (pdev->revision == 0x01) {
- int i;
- static const u8 eedata[4] = { 0xFE, 0x13, 0x10, 0xFF };
-
- /* Re-write the first 4 bytes if we have an eeprom
- * present and the revision id is 1, this fixes the
- * corruption seen with 1310 B Silicon
- */
- for (i = 0; i < 3; i++)
- if (eeprom_write(adapter, i, eedata[i]) < 0)
- write_failed = 1;
- }
- if (pdev->revision != 0x01 || write_failed) {
- dev_err(&pdev->dev,
- "Fatal EEPROM Status Error - 0x%04x\n",
- eestatus);
-
- /* This error could mean that there was an error
- * reading the eeprom or that the eeprom doesn't exist.
- * We will treat each case the same and not try to
- * gather additional information that normally would
- * come from the eeprom, like MAC Address
- */
- adapter->has_eeprom = 0;
- return -EIO;
- }
- }
- adapter->has_eeprom = 1;
-
- /* Read the EEPROM for information regarding LED behavior. Refer to
- * ET1310_phy.c, et131x_xcvr_init(), for its use.
- */
- eeprom_read(adapter, 0x70, &adapter->eeprom_data[0]);
- eeprom_read(adapter, 0x71, &adapter->eeprom_data[1]);
-
- if (adapter->eeprom_data[0] != 0xcd)
- /* Disable all optional features */
- adapter->eeprom_data[1] = 0x00;
-
- return 0;
-}
-
-/* et131x_rx_dma_enable - re-start of Rx_DMA on the ET1310.
- * @adapter: pointer to our adapter structure
- */
-static void et131x_rx_dma_enable(struct et131x_adapter *adapter)
-{
- /* Setup the receive dma configuration register for normal operation */
- u32 csr = ET_RXDMA_CSR_FBR1_ENABLE;
- struct rx_ring *rx_ring = &adapter->rx_ring;
-
- if (rx_ring->fbr[1]->buffsize == 4096)
- csr |= ET_RXDMA_CSR_FBR1_SIZE_LO;
- else if (rx_ring->fbr[1]->buffsize == 8192)
- csr |= ET_RXDMA_CSR_FBR1_SIZE_HI;
- else if (rx_ring->fbr[1]->buffsize == 16384)
- csr |= ET_RXDMA_CSR_FBR1_SIZE_LO | ET_RXDMA_CSR_FBR1_SIZE_HI;
-
- csr |= ET_RXDMA_CSR_FBR0_ENABLE;
- if (rx_ring->fbr[0]->buffsize == 256)
- csr |= ET_RXDMA_CSR_FBR0_SIZE_LO;
- else if (rx_ring->fbr[0]->buffsize == 512)
- csr |= ET_RXDMA_CSR_FBR0_SIZE_HI;
- else if (rx_ring->fbr[0]->buffsize == 1024)
- csr |= ET_RXDMA_CSR_FBR0_SIZE_LO | ET_RXDMA_CSR_FBR0_SIZE_HI;
- writel(csr, &adapter->regs->rxdma.csr);
-
- csr = readl(&adapter->regs->rxdma.csr);
- if (csr & ET_RXDMA_CSR_HALT_STATUS) {
- udelay(5);
- csr = readl(&adapter->regs->rxdma.csr);
- if (csr & ET_RXDMA_CSR_HALT_STATUS) {
- dev_err(&adapter->pdev->dev,
- "RX Dma failed to exit halt state. CSR 0x%08x\n",
- csr);
- }
- }
-}
-
-/* et131x_rx_dma_disable - Stop of Rx_DMA on the ET1310
- * @adapter: pointer to our adapter structure
- */
-static void et131x_rx_dma_disable(struct et131x_adapter *adapter)
-{
- u32 csr;
- /* Setup the receive dma configuration register */
- writel(ET_RXDMA_CSR_HALT | ET_RXDMA_CSR_FBR1_ENABLE,
- &adapter->regs->rxdma.csr);
- csr = readl(&adapter->regs->rxdma.csr);
- if (!(csr & ET_RXDMA_CSR_HALT_STATUS)) {
- udelay(5);
- csr = readl(&adapter->regs->rxdma.csr);
- if (!(csr & ET_RXDMA_CSR_HALT_STATUS))
- dev_err(&adapter->pdev->dev,
- "RX Dma failed to enter halt state. CSR 0x%08x\n",
- csr);
- }
-}
-
-/* et131x_tx_dma_enable - re-start of Tx_DMA on the ET1310.
- * @adapter: pointer to our adapter structure
- *
- * Mainly used after a return to the D0 (full-power) state from a lower state.
- */
-static void et131x_tx_dma_enable(struct et131x_adapter *adapter)
-{
- /* Setup the transmit dma configuration register for normal
- * operation
- */
- writel(ET_TXDMA_SNGL_EPKT | (PARM_DMA_CACHE_DEF << ET_TXDMA_CACHE_SHIFT),
- &adapter->regs->txdma.csr);
-}
-
-static inline void add_10bit(u32 *v, int n)
-{
- *v = INDEX10(*v + n) | (*v & ET_DMA10_WRAP);
-}
-
-static inline void add_12bit(u32 *v, int n)
-{
- *v = INDEX12(*v + n) | (*v & ET_DMA12_WRAP);
-}
-
-/* et1310_config_mac_regs1 - Initialize the first part of MAC regs
- * @adapter: pointer to our adapter structure
- */
-static void et1310_config_mac_regs1(struct et131x_adapter *adapter)
-{
- struct mac_regs __iomem *macregs = &adapter->regs->mac;
- u32 station1;
- u32 station2;
- u32 ipg;
-
- /* First we need to reset everything. Write to MAC configuration
- * register 1 to perform reset.
- */
- writel(ET_MAC_CFG1_SOFT_RESET | ET_MAC_CFG1_SIM_RESET |
- ET_MAC_CFG1_RESET_RXMC | ET_MAC_CFG1_RESET_TXMC |
- ET_MAC_CFG1_RESET_RXFUNC | ET_MAC_CFG1_RESET_TXFUNC,
- ¯egs->cfg1);
-
- /* Next lets configure the MAC Inter-packet gap register */
- ipg = 0x38005860; /* IPG1 0x38 IPG2 0x58 B2B 0x60 */
- ipg |= 0x50 << 8; /* ifg enforce 0x50 */
- writel(ipg, ¯egs->ipg);
-
- /* Next lets configure the MAC Half Duplex register */
- /* BEB trunc 0xA, Ex Defer, Rexmit 0xF Coll 0x37 */
- writel(0x00A1F037, ¯egs->hfdp);
-
- /* Next lets configure the MAC Interface Control register */
- writel(0, ¯egs->if_ctrl);
-
- /* Let's move on to setting up the mii management configuration */
- writel(ET_MAC_MIIMGMT_CLK_RST, ¯egs->mii_mgmt_cfg);
-
- /* Next lets configure the MAC Station Address register. These
- * values are read from the EEPROM during initialization and stored
- * in the adapter structure. We write what is stored in the adapter
- * structure to the MAC Station Address registers high and low. This
- * station address is used for generating and checking pause control
- * packets.
- */
- station2 = (adapter->addr[1] << ET_MAC_STATION_ADDR2_OC2_SHIFT) |
- (adapter->addr[0] << ET_MAC_STATION_ADDR2_OC1_SHIFT);
- station1 = (adapter->addr[5] << ET_MAC_STATION_ADDR1_OC6_SHIFT) |
- (adapter->addr[4] << ET_MAC_STATION_ADDR1_OC5_SHIFT) |
- (adapter->addr[3] << ET_MAC_STATION_ADDR1_OC4_SHIFT) |
- adapter->addr[2];
- writel(station1, ¯egs->station_addr_1);
- writel(station2, ¯egs->station_addr_2);
-
- /* Max ethernet packet in bytes that will be passed by the mac without
- * being truncated. Allow the MAC to pass 4 more than our max packet
- * size. This is 4 for the Ethernet CRC.
- *
- * Packets larger than (registry_jumbo_packet) that do not contain a
- * VLAN ID will be dropped by the Rx function.
- */
- writel(adapter->registry_jumbo_packet + 4, ¯egs->max_fm_len);
-
- /* clear out MAC config reset */
- writel(0, ¯egs->cfg1);
-}
-
-/* et1310_config_mac_regs2 - Initialize the second part of MAC regs
- * @adapter: pointer to our adapter structure
- */
-static void et1310_config_mac_regs2(struct et131x_adapter *adapter)
-{
- int32_t delay = 0;
- struct mac_regs __iomem *mac = &adapter->regs->mac;
- struct phy_device *phydev = adapter->phydev;
- u32 cfg1;
- u32 cfg2;
- u32 ifctrl;
- u32 ctl;
-
- ctl = readl(&adapter->regs->txmac.ctl);
- cfg1 = readl(&mac->cfg1);
- cfg2 = readl(&mac->cfg2);
- ifctrl = readl(&mac->if_ctrl);
-
- /* Set up the if mode bits */
- cfg2 &= ~ET_MAC_CFG2_IFMODE_MASK;
- if (phydev->speed == SPEED_1000) {
- cfg2 |= ET_MAC_CFG2_IFMODE_1000;
- /* Phy mode bit */
- ifctrl &= ~ET_MAC_IFCTRL_PHYMODE;
- } else {
- cfg2 |= ET_MAC_CFG2_IFMODE_100;
- ifctrl |= ET_MAC_IFCTRL_PHYMODE;
- }
-
- /* We need to enable Rx/Tx */
- cfg1 |= ET_MAC_CFG1_RX_ENABLE | ET_MAC_CFG1_TX_ENABLE |
- ET_MAC_CFG1_TX_FLOW;
- /* Initialize loop back to off */
- cfg1 &= ~(ET_MAC_CFG1_LOOPBACK | ET_MAC_CFG1_RX_FLOW);
- if (adapter->flow == FLOW_RXONLY || adapter->flow == FLOW_BOTH)
- cfg1 |= ET_MAC_CFG1_RX_FLOW;
- writel(cfg1, &mac->cfg1);
-
- /* Now we need to initialize the MAC Configuration 2 register */
- /* preamble 7, check length, huge frame off, pad crc, crc enable
- * full duplex off
- */
- cfg2 |= 0x7 << ET_MAC_CFG2_PREAMBLE_SHIFT;
- cfg2 |= ET_MAC_CFG2_IFMODE_LEN_CHECK;
- cfg2 |= ET_MAC_CFG2_IFMODE_PAD_CRC;
- cfg2 |= ET_MAC_CFG2_IFMODE_CRC_ENABLE;
- cfg2 &= ~ET_MAC_CFG2_IFMODE_HUGE_FRAME;
- cfg2 &= ~ET_MAC_CFG2_IFMODE_FULL_DPLX;
-
- /* Turn on duplex if needed */
- if (phydev->duplex == DUPLEX_FULL)
- cfg2 |= ET_MAC_CFG2_IFMODE_FULL_DPLX;
-
- ifctrl &= ~ET_MAC_IFCTRL_GHDMODE;
- if (phydev->duplex == DUPLEX_HALF)
- ifctrl |= ET_MAC_IFCTRL_GHDMODE;
-
- writel(ifctrl, &mac->if_ctrl);
- writel(cfg2, &mac->cfg2);
-
- do {
- udelay(10);
- delay++;
- cfg1 = readl(&mac->cfg1);
- } while ((cfg1 & ET_MAC_CFG1_WAIT) != ET_MAC_CFG1_WAIT && delay < 100);
-
- if (delay == 100) {
- dev_warn(&adapter->pdev->dev,
- "Syncd bits did not respond correctly cfg1 word 0x%08x\n",
- cfg1);
- }
-
- /* Enable txmac */
- ctl |= ET_TX_CTRL_TXMAC_ENABLE | ET_TX_CTRL_FC_DISABLE;
- writel(ctl, &adapter->regs->txmac.ctl);
-
- /* Ready to start the RXDMA/TXDMA engine */
- if (adapter->flags & FMP_ADAPTER_LOWER_POWER) {
- et131x_rx_dma_enable(adapter);
- et131x_tx_dma_enable(adapter);
- }
-}
-
-/* et1310_in_phy_coma - check if the device is in phy coma
- * @adapter: pointer to our adapter structure
- *
- * Returns 0 if the device is not in phy coma, 1 if it is in phy coma
- */
-static int et1310_in_phy_coma(struct et131x_adapter *adapter)
-{
- u32 pmcsr = readl(&adapter->regs->global.pm_csr);
-
- return ET_PM_PHY_SW_COMA & pmcsr ? 1 : 0;
-}
-
-static void et1310_setup_device_for_multicast(struct et131x_adapter *adapter)
-{
- struct rxmac_regs __iomem *rxmac = &adapter->regs->rxmac;
- u32 hash1 = 0;
- u32 hash2 = 0;
- u32 hash3 = 0;
- u32 hash4 = 0;
- u32 pm_csr;
-
- /* If ET131X_PACKET_TYPE_MULTICAST is specified, then we provision
- * the multi-cast LIST. If it is NOT specified, (and "ALL" is not
- * specified) then we should pass NO multi-cast addresses to the
- * driver.
- */
- if (adapter->packet_filter & ET131X_PACKET_TYPE_MULTICAST) {
- int i;
-
- /* Loop through our multicast array and set up the device */
- for (i = 0; i < adapter->multicast_addr_count; i++) {
- u32 result;
-
- result = ether_crc(6, adapter->multicast_list[i]);
-
- result = (result & 0x3F800000) >> 23;
-
- if (result < 32) {
- hash1 |= (1 << result);
- } else if ((31 < result) && (result < 64)) {
- result -= 32;
- hash2 |= (1 << result);
- } else if ((63 < result) && (result < 96)) {
- result -= 64;
- hash3 |= (1 << result);
- } else {
- result -= 96;
- hash4 |= (1 << result);
- }
- }
- }
-
- /* Write out the new hash to the device */
- pm_csr = readl(&adapter->regs->global.pm_csr);
- if (!et1310_in_phy_coma(adapter)) {
- writel(hash1, &rxmac->multi_hash1);
- writel(hash2, &rxmac->multi_hash2);
- writel(hash3, &rxmac->multi_hash3);
- writel(hash4, &rxmac->multi_hash4);
- }
-}
-
-static void et1310_setup_device_for_unicast(struct et131x_adapter *adapter)
-{
- struct rxmac_regs __iomem *rxmac = &adapter->regs->rxmac;
- u32 uni_pf1;
- u32 uni_pf2;
- u32 uni_pf3;
- u32 pm_csr;
-
- /* Set up unicast packet filter reg 3 to be the first two octets of
- * the MAC address for both address
- *
- * Set up unicast packet filter reg 2 to be the octets 2 - 5 of the
- * MAC address for second address
- *
- * Set up unicast packet filter reg 3 to be the octets 2 - 5 of the
- * MAC address for first address
- */
- uni_pf3 = (adapter->addr[0] << ET_RX_UNI_PF_ADDR2_1_SHIFT) |
- (adapter->addr[1] << ET_RX_UNI_PF_ADDR2_2_SHIFT) |
- (adapter->addr[0] << ET_RX_UNI_PF_ADDR1_1_SHIFT) |
- adapter->addr[1];
-
- uni_pf2 = (adapter->addr[2] << ET_RX_UNI_PF_ADDR2_3_SHIFT) |
- (adapter->addr[3] << ET_RX_UNI_PF_ADDR2_4_SHIFT) |
- (adapter->addr[4] << ET_RX_UNI_PF_ADDR2_5_SHIFT) |
- adapter->addr[5];
-
- uni_pf1 = (adapter->addr[2] << ET_RX_UNI_PF_ADDR1_3_SHIFT) |
- (adapter->addr[3] << ET_RX_UNI_PF_ADDR1_4_SHIFT) |
- (adapter->addr[4] << ET_RX_UNI_PF_ADDR1_5_SHIFT) |
- adapter->addr[5];
-
- pm_csr = readl(&adapter->regs->global.pm_csr);
- if (!et1310_in_phy_coma(adapter)) {
- writel(uni_pf1, &rxmac->uni_pf_addr1);
- writel(uni_pf2, &rxmac->uni_pf_addr2);
- writel(uni_pf3, &rxmac->uni_pf_addr3);
- }
-}
-
-static void et1310_config_rxmac_regs(struct et131x_adapter *adapter)
-{
- struct rxmac_regs __iomem *rxmac = &adapter->regs->rxmac;
- struct phy_device *phydev = adapter->phydev;
- u32 sa_lo;
- u32 sa_hi = 0;
- u32 pf_ctrl = 0;
- u32 __iomem *wolw;
-
- /* Disable the MAC while it is being configured (also disable WOL) */
- writel(0x8, &rxmac->ctrl);
-
- /* Initialize WOL to disabled. */
- writel(0, &rxmac->crc0);
- writel(0, &rxmac->crc12);
- writel(0, &rxmac->crc34);
-
- /* We need to set the WOL mask0 - mask4 next. We initialize it to
- * its default Values of 0x00000000 because there are not WOL masks
- * as of this time.
- */
- for (wolw = &rxmac->mask0_word0; wolw <= &rxmac->mask4_word3; wolw++)
- writel(0, wolw);
-
- /* Lets setup the WOL Source Address */
- sa_lo = (adapter->addr[2] << ET_RX_WOL_LO_SA3_SHIFT) |
- (adapter->addr[3] << ET_RX_WOL_LO_SA4_SHIFT) |
- (adapter->addr[4] << ET_RX_WOL_LO_SA5_SHIFT) |
- adapter->addr[5];
- writel(sa_lo, &rxmac->sa_lo);
-
- sa_hi = (u32)(adapter->addr[0] << ET_RX_WOL_HI_SA1_SHIFT) |
- adapter->addr[1];
- writel(sa_hi, &rxmac->sa_hi);
-
- /* Disable all Packet Filtering */
- writel(0, &rxmac->pf_ctrl);
-
- /* Let's initialize the Unicast Packet filtering address */
- if (adapter->packet_filter & ET131X_PACKET_TYPE_DIRECTED) {
- et1310_setup_device_for_unicast(adapter);
- pf_ctrl |= ET_RX_PFCTRL_UNICST_FILTER_ENABLE;
- } else {
- writel(0, &rxmac->uni_pf_addr1);
- writel(0, &rxmac->uni_pf_addr2);
- writel(0, &rxmac->uni_pf_addr3);
- }
-
- /* Let's initialize the Multicast hash */
- if (!(adapter->packet_filter & ET131X_PACKET_TYPE_ALL_MULTICAST)) {
- pf_ctrl |= ET_RX_PFCTRL_MLTCST_FILTER_ENABLE;
- et1310_setup_device_for_multicast(adapter);
- }
-
- /* Runt packet filtering. Didn't work in version A silicon. */
- pf_ctrl |= (NIC_MIN_PACKET_SIZE + 4) << ET_RX_PFCTRL_MIN_PKT_SZ_SHIFT;
- pf_ctrl |= ET_RX_PFCTRL_FRAG_FILTER_ENABLE;
-
- if (adapter->registry_jumbo_packet > 8192)
- /* In order to transmit jumbo packets greater than 8k, the
- * FIFO between RxMAC and RxDMA needs to be reduced in size
- * to (16k - Jumbo packet size). In order to implement this,
- * we must use "cut through" mode in the RxMAC, which chops
- * packets down into segments which are (max_size * 16). In
- * this case we selected 256 bytes, since this is the size of
- * the PCI-Express TLP's that the 1310 uses.
- *
- * seg_en on, fc_en off, size 0x10
- */
- writel(0x41, &rxmac->mcif_ctrl_max_seg);
- else
- writel(0, &rxmac->mcif_ctrl_max_seg);
-
- /* Initialize the MCIF water marks */
- writel(0, &rxmac->mcif_water_mark);
-
- /* Initialize the MIF control */
- writel(0, &rxmac->mif_ctrl);
-
- /* Initialize the Space Available Register */
- writel(0, &rxmac->space_avail);
-
- /* Initialize the the mif_ctrl register
- * bit 3: Receive code error. One or more nibbles were signaled as
- * errors during the reception of the packet. Clear this
- * bit in Gigabit, set it in 100Mbit. This was derived
- * experimentally at UNH.
- * bit 4: Receive CRC error. The packet's CRC did not match the
- * internally generated CRC.
- * bit 5: Receive length check error. Indicates that frame length
- * field value in the packet does not match the actual data
- * byte length and is not a type field.
- * bit 16: Receive frame truncated.
- * bit 17: Drop packet enable
- */
- if (phydev && phydev->speed == SPEED_100)
- writel(0x30038, &rxmac->mif_ctrl);
- else
- writel(0x30030, &rxmac->mif_ctrl);
-
- /* Finally we initialize RxMac to be enabled & WOL disabled. Packet
- * filter is always enabled since it is where the runt packets are
- * supposed to be dropped. For version A silicon, runt packet
- * dropping doesn't work, so it is disabled in the pf_ctrl register,
- * but we still leave the packet filter on.
- */
- writel(pf_ctrl, &rxmac->pf_ctrl);
- writel(ET_RX_CTRL_RXMAC_ENABLE | ET_RX_CTRL_WOL_DISABLE, &rxmac->ctrl);
-}
-
-static void et1310_config_txmac_regs(struct et131x_adapter *adapter)
-{
- struct txmac_regs __iomem *txmac = &adapter->regs->txmac;
-
- /* We need to update the Control Frame Parameters
- * cfpt - control frame pause timer set to 64 (0x40)
- * cfep - control frame extended pause timer set to 0x0
- */
- if (adapter->flow == FLOW_NONE)
- writel(0, &txmac->cf_param);
- else
- writel(0x40, &txmac->cf_param);
-}
-
-static void et1310_config_macstat_regs(struct et131x_adapter *adapter)
-{
- struct macstat_regs __iomem *macstat = &adapter->regs->macstat;
- u32 __iomem *reg;
-
- /* initialize all the macstat registers to zero on the device */
- for (reg = &macstat->txrx_0_64_byte_frames;
- reg <= &macstat->carry_reg2; reg++)
- writel(0, reg);
-
- /* Unmask any counters that we want to track the overflow of.
- * Initially this will be all counters. It may become clear later
- * that we do not need to track all counters.
- */
- writel(0xFFFFBE32, &macstat->carry_reg1_mask);
- writel(0xFFFE7E8B, &macstat->carry_reg2_mask);
-}
-
-/* et131x_phy_mii_read - Read from the PHY through the MII Interface on the MAC
- * @adapter: pointer to our private adapter structure
- * @addr: the address of the transceiver
- * @reg: the register to read
- * @value: pointer to a 16-bit value in which the value will be stored
- */
-static int et131x_phy_mii_read(struct et131x_adapter *adapter, u8 addr,
- u8 reg, u16 *value)
-{
- struct mac_regs __iomem *mac = &adapter->regs->mac;
- int status = 0;
- u32 delay = 0;
- u32 mii_addr;
- u32 mii_cmd;
- u32 mii_indicator;
-
- /* Save a local copy of the registers we are dealing with so we can
- * set them back
- */
- mii_addr = readl(&mac->mii_mgmt_addr);
- mii_cmd = readl(&mac->mii_mgmt_cmd);
-
- /* Stop the current operation */
- writel(0, &mac->mii_mgmt_cmd);
-
- /* Set up the register we need to read from on the correct PHY */
- writel(ET_MAC_MII_ADDR(addr, reg), &mac->mii_mgmt_addr);
-
- writel(0x1, &mac->mii_mgmt_cmd);
-
- do {
- udelay(50);
- delay++;
- mii_indicator = readl(&mac->mii_mgmt_indicator);
- } while ((mii_indicator & ET_MAC_MGMT_WAIT) && delay < 50);
-
- /* If we hit the max delay, we could not read the register */
- if (delay == 50) {
- dev_warn(&adapter->pdev->dev,
- "reg 0x%08x could not be read\n", reg);
- dev_warn(&adapter->pdev->dev, "status is 0x%08x\n",
- mii_indicator);
-
- status = -EIO;
- goto out;
- }
-
- /* If we hit here we were able to read the register and we need to
- * return the value to the caller
- */
- *value = readl(&mac->mii_mgmt_stat) & ET_MAC_MIIMGMT_STAT_PHYCRTL_MASK;
-
-out:
- /* Stop the read operation */
- writel(0, &mac->mii_mgmt_cmd);
-
- /* set the registers we touched back to the state at which we entered
- * this function
- */
- writel(mii_addr, &mac->mii_mgmt_addr);
- writel(mii_cmd, &mac->mii_mgmt_cmd);
-
- return status;
-}
-
-static int et131x_mii_read(struct et131x_adapter *adapter, u8 reg, u16 *value)
-{
- struct phy_device *phydev = adapter->phydev;
-
- if (!phydev)
- return -EIO;
-
- return et131x_phy_mii_read(adapter, phydev->addr, reg, value);
-}
-
-/* et131x_mii_write - Write to a PHY reg through the MII interface of the MAC
- * @adapter: pointer to our private adapter structure
- * @reg: the register to read
- * @value: 16-bit value to write
- */
-static int et131x_mii_write(struct et131x_adapter *adapter, u8 addr, u8 reg,
- u16 value)
-{
- struct mac_regs __iomem *mac = &adapter->regs->mac;
- int status = 0;
- u32 delay = 0;
- u32 mii_addr;
- u32 mii_cmd;
- u32 mii_indicator;
-
- /* Save a local copy of the registers we are dealing with so we can
- * set them back
- */
- mii_addr = readl(&mac->mii_mgmt_addr);
- mii_cmd = readl(&mac->mii_mgmt_cmd);
-
- /* Stop the current operation */
- writel(0, &mac->mii_mgmt_cmd);
-
- /* Set up the register we need to write to on the correct PHY */
- writel(ET_MAC_MII_ADDR(addr, reg), &mac->mii_mgmt_addr);
-
- /* Add the value to write to the registers to the mac */
- writel(value, &mac->mii_mgmt_ctrl);
-
- do {
- udelay(50);
- delay++;
- mii_indicator = readl(&mac->mii_mgmt_indicator);
- } while ((mii_indicator & ET_MAC_MGMT_BUSY) && delay < 100);
-
- /* If we hit the max delay, we could not write the register */
- if (delay == 100) {
- u16 tmp;
-
- dev_warn(&adapter->pdev->dev,
- "reg 0x%08x could not be written", reg);
- dev_warn(&adapter->pdev->dev, "status is 0x%08x\n",
- mii_indicator);
- dev_warn(&adapter->pdev->dev, "command is 0x%08x\n",
- readl(&mac->mii_mgmt_cmd));
-
- et131x_mii_read(adapter, reg, &tmp);
-
- status = -EIO;
- }
- /* Stop the write operation */
- writel(0, &mac->mii_mgmt_cmd);
-
- /* set the registers we touched back to the state at which we entered
- * this function
- */
- writel(mii_addr, &mac->mii_mgmt_addr);
- writel(mii_cmd, &mac->mii_mgmt_cmd);
-
- return status;
-}
-
-static void et1310_phy_read_mii_bit(struct et131x_adapter *adapter,
- u16 regnum,
- u16 bitnum,
- u8 *value)
-{
- u16 reg;
- u16 mask = 1 << bitnum;
-
- /* Read the requested register */
- et131x_mii_read(adapter, regnum, ®);
-
- *value = (reg & mask) >> bitnum;
-}
-
-static void et1310_config_flow_control(struct et131x_adapter *adapter)
-{
- struct phy_device *phydev = adapter->phydev;
-
- if (phydev->duplex == DUPLEX_HALF) {
- adapter->flow = FLOW_NONE;
- } else {
- char remote_pause, remote_async_pause;
-
- et1310_phy_read_mii_bit(adapter, 5, 10, &remote_pause);
- et1310_phy_read_mii_bit(adapter, 5, 11, &remote_async_pause);
-
- if (remote_pause && remote_async_pause) {
- adapter->flow = adapter->wanted_flow;
- } else if (remote_pause && !remote_async_pause) {
- if (adapter->wanted_flow == FLOW_BOTH)
- adapter->flow = FLOW_BOTH;
- else
- adapter->flow = FLOW_NONE;
- } else if (!remote_pause && !remote_async_pause) {
- adapter->flow = FLOW_NONE;
- } else {
- if (adapter->wanted_flow == FLOW_BOTH)
- adapter->flow = FLOW_RXONLY;
- else
- adapter->flow = FLOW_NONE;
- }
- }
-}
-
-/* et1310_update_macstat_host_counters - Update local copy of the statistics */
-static void et1310_update_macstat_host_counters(struct et131x_adapter *adapter)
-{
- struct ce_stats *stats = &adapter->stats;
- struct macstat_regs __iomem *macstat =
- &adapter->regs->macstat;
-
- stats->tx_collisions += readl(&macstat->tx_total_collisions);
- stats->tx_first_collisions += readl(&macstat->tx_single_collisions);
- stats->tx_deferred += readl(&macstat->tx_deferred);
- stats->tx_excessive_collisions +=
- readl(&macstat->tx_multiple_collisions);
- stats->tx_late_collisions += readl(&macstat->tx_late_collisions);
- stats->tx_underflows += readl(&macstat->tx_undersize_frames);
- stats->tx_max_pkt_errs += readl(&macstat->tx_oversize_frames);
-
- stats->rx_align_errs += readl(&macstat->rx_align_errs);
- stats->rx_crc_errs += readl(&macstat->rx_code_errs);
- stats->rcvd_pkts_dropped += readl(&macstat->rx_drops);
- stats->rx_overflows += readl(&macstat->rx_oversize_packets);
- stats->rx_code_violations += readl(&macstat->rx_fcs_errs);
- stats->rx_length_errs += readl(&macstat->rx_frame_len_errs);
- stats->rx_other_errs += readl(&macstat->rx_fragment_packets);
-}
-
-/* et1310_handle_macstat_interrupt
- *
- * One of the MACSTAT counters has wrapped. Update the local copy of
- * the statistics held in the adapter structure, checking the "wrap"
- * bit for each counter.
- */
-static void et1310_handle_macstat_interrupt(struct et131x_adapter *adapter)
-{
- u32 carry_reg1;
- u32 carry_reg2;
-
- /* Read the interrupt bits from the register(s). These are Clear On
- * Write.
- */
- carry_reg1 = readl(&adapter->regs->macstat.carry_reg1);
- carry_reg2 = readl(&adapter->regs->macstat.carry_reg2);
-
- writel(carry_reg1, &adapter->regs->macstat.carry_reg1);
- writel(carry_reg2, &adapter->regs->macstat.carry_reg2);
-
- /* We need to do update the host copy of all the MAC_STAT counters.
- * For each counter, check it's overflow bit. If the overflow bit is
- * set, then increment the host version of the count by one complete
- * revolution of the counter. This routine is called when the counter
- * block indicates that one of the counters has wrapped.
- */
- if (carry_reg1 & (1 << 14))
- adapter->stats.rx_code_violations += COUNTER_WRAP_16_BIT;
- if (carry_reg1 & (1 << 8))
- adapter->stats.rx_align_errs += COUNTER_WRAP_12_BIT;
- if (carry_reg1 & (1 << 7))
- adapter->stats.rx_length_errs += COUNTER_WRAP_16_BIT;
- if (carry_reg1 & (1 << 2))
- adapter->stats.rx_other_errs += COUNTER_WRAP_16_BIT;
- if (carry_reg1 & (1 << 6))
- adapter->stats.rx_crc_errs += COUNTER_WRAP_16_BIT;
- if (carry_reg1 & (1 << 3))
- adapter->stats.rx_overflows += COUNTER_WRAP_16_BIT;
- if (carry_reg1 & (1 << 0))
- adapter->stats.rcvd_pkts_dropped += COUNTER_WRAP_16_BIT;
- if (carry_reg2 & (1 << 16))
- adapter->stats.tx_max_pkt_errs += COUNTER_WRAP_12_BIT;
- if (carry_reg2 & (1 << 15))
- adapter->stats.tx_underflows += COUNTER_WRAP_12_BIT;
- if (carry_reg2 & (1 << 6))
- adapter->stats.tx_first_collisions += COUNTER_WRAP_12_BIT;
- if (carry_reg2 & (1 << 8))
- adapter->stats.tx_deferred += COUNTER_WRAP_12_BIT;
- if (carry_reg2 & (1 << 5))
- adapter->stats.tx_excessive_collisions += COUNTER_WRAP_12_BIT;
- if (carry_reg2 & (1 << 4))
- adapter->stats.tx_late_collisions += COUNTER_WRAP_12_BIT;
- if (carry_reg2 & (1 << 2))
- adapter->stats.tx_collisions += COUNTER_WRAP_12_BIT;
-}
-
-static int et131x_mdio_read(struct mii_bus *bus, int phy_addr, int reg)
-{
- struct net_device *netdev = bus->priv;
- struct et131x_adapter *adapter = netdev_priv(netdev);
- u16 value;
- int ret;
-
- ret = et131x_phy_mii_read(adapter, phy_addr, reg, &value);
-
- if (ret < 0)
- return ret;
-
- return value;
-}
-
-static int et131x_mdio_write(struct mii_bus *bus, int phy_addr,
- int reg, u16 value)
-{
- struct net_device *netdev = bus->priv;
- struct et131x_adapter *adapter = netdev_priv(netdev);
-
- return et131x_mii_write(adapter, phy_addr, reg, value);
-}
-
-/* et1310_phy_power_switch - PHY power control
- * @adapter: device to control
- * @down: true for off/false for back on
- *
- * one hundred, ten, one thousand megs
- * How would you like to have your LAN accessed
- * Can't you see that this code processed
- * Phy power, phy power..
- */
-static void et1310_phy_power_switch(struct et131x_adapter *adapter, bool down)
-{
- u16 data;
- struct phy_device *phydev = adapter->phydev;
-
- et131x_mii_read(adapter, MII_BMCR, &data);
- data &= ~BMCR_PDOWN;
- if (down)
- data |= BMCR_PDOWN;
- et131x_mii_write(adapter, phydev->addr, MII_BMCR, data);
-}
-
-/* et131x_xcvr_init - Init the phy if we are setting it into force mode */
-static void et131x_xcvr_init(struct et131x_adapter *adapter)
-{
- u16 lcr2;
- struct phy_device *phydev = adapter->phydev;
-
- /* Set the LED behavior such that LED 1 indicates speed (off =
- * 10Mbits, blink = 100Mbits, on = 1000Mbits) and LED 2 indicates
- * link and activity (on for link, blink off for activity).
- *
- * NOTE: Some customizations have been added here for specific
- * vendors; The LED behavior is now determined by vendor data in the
- * EEPROM. However, the above description is the default.
- */
- if ((adapter->eeprom_data[1] & 0x4) == 0) {
- et131x_mii_read(adapter, PHY_LED_2, &lcr2);
-
- lcr2 &= (ET_LED2_LED_100TX | ET_LED2_LED_1000T);
- lcr2 |= (LED_VAL_LINKON_ACTIVE << LED_LINK_SHIFT);
-
- if ((adapter->eeprom_data[1] & 0x8) == 0)
- lcr2 |= (LED_VAL_1000BT_100BTX << LED_TXRX_SHIFT);
- else
- lcr2 |= (LED_VAL_LINKON << LED_TXRX_SHIFT);
-
- et131x_mii_write(adapter, phydev->addr, PHY_LED_2, lcr2);
- }
-}
-
-/* et131x_configure_global_regs - configure JAGCore global regs
- *
- * Used to configure the global registers on the JAGCore
- */
-static void et131x_configure_global_regs(struct et131x_adapter *adapter)
-{
- struct global_regs __iomem *regs = &adapter->regs->global;
-
- writel(0, ®s->rxq_start_addr);
- writel(INTERNAL_MEM_SIZE - 1, ®s->txq_end_addr);
-
- if (adapter->registry_jumbo_packet < 2048) {
- /* Tx / RxDMA and Tx/Rx MAC interfaces have a 1k word
- * block of RAM that the driver can split between Tx
- * and Rx as it desires. Our default is to split it
- * 50/50:
- */
- writel(PARM_RX_MEM_END_DEF, ®s->rxq_end_addr);
- writel(PARM_RX_MEM_END_DEF + 1, ®s->txq_start_addr);
- } else if (adapter->registry_jumbo_packet < 8192) {
- /* For jumbo packets > 2k but < 8k, split 50-50. */
- writel(INTERNAL_MEM_RX_OFFSET, ®s->rxq_end_addr);
- writel(INTERNAL_MEM_RX_OFFSET + 1, ®s->txq_start_addr);
- } else {
- /* 9216 is the only packet size greater than 8k that
- * is available. The Tx buffer has to be big enough
- * for one whole packet on the Tx side. We'll make
- * the Tx 9408, and give the rest to Rx
- */
- writel(0x01b3, ®s->rxq_end_addr);
- writel(0x01b4, ®s->txq_start_addr);
- }
-
- /* Initialize the loopback register. Disable all loopbacks. */
- writel(0, ®s->loopback);
-
- /* MSI Register */
- writel(0, ®s->msi_config);
-
- /* By default, disable the watchdog timer. It will be enabled when
- * a packet is queued.
- */
- writel(0, ®s->watchdog_timer);
-}
-
-/* et131x_config_rx_dma_regs - Start of Rx_DMA init sequence */
-static void et131x_config_rx_dma_regs(struct et131x_adapter *adapter)
-{
- struct rxdma_regs __iomem *rx_dma = &adapter->regs->rxdma;
- struct rx_ring *rx_local = &adapter->rx_ring;
- struct fbr_desc *fbr_entry;
- u32 entry;
- u32 psr_num_des;
- unsigned long flags;
- u8 id;
-
- /* Halt RXDMA to perform the reconfigure. */
- et131x_rx_dma_disable(adapter);
-
- /* Load the completion writeback physical address */
- writel(upper_32_bits(rx_local->rx_status_bus), &rx_dma->dma_wb_base_hi);
- writel(lower_32_bits(rx_local->rx_status_bus), &rx_dma->dma_wb_base_lo);
-
- memset(rx_local->rx_status_block, 0, sizeof(struct rx_status_block));
-
- /* Set the address and parameters of the packet status ring into the
- * 1310's registers
- */
- writel(upper_32_bits(rx_local->ps_ring_physaddr), &rx_dma->psr_base_hi);
- writel(lower_32_bits(rx_local->ps_ring_physaddr), &rx_dma->psr_base_lo);
- writel(rx_local->psr_entries - 1, &rx_dma->psr_num_des);
- writel(0, &rx_dma->psr_full_offset);
-
- psr_num_des = readl(&rx_dma->psr_num_des) & ET_RXDMA_PSR_NUM_DES_MASK;
- writel((psr_num_des * LO_MARK_PERCENT_FOR_PSR) / 100,
- &rx_dma->psr_min_des);
-
- spin_lock_irqsave(&adapter->rcv_lock, flags);
-
- /* These local variables track the PSR in the adapter structure */
- rx_local->local_psr_full = 0;
-
- for (id = 0; id < NUM_FBRS; id++) {
- u32 __iomem *num_des;
- u32 __iomem *full_offset;
- u32 __iomem *min_des;
- u32 __iomem *base_hi;
- u32 __iomem *base_lo;
- struct fbr_lookup *fbr = rx_local->fbr[id];
-
- if (id == 0) {
- num_des = &rx_dma->fbr0_num_des;
- full_offset = &rx_dma->fbr0_full_offset;
- min_des = &rx_dma->fbr0_min_des;
- base_hi = &rx_dma->fbr0_base_hi;
- base_lo = &rx_dma->fbr0_base_lo;
- } else {
- num_des = &rx_dma->fbr1_num_des;
- full_offset = &rx_dma->fbr1_full_offset;
- min_des = &rx_dma->fbr1_min_des;
- base_hi = &rx_dma->fbr1_base_hi;
- base_lo = &rx_dma->fbr1_base_lo;
- }
-
- /* Now's the best time to initialize FBR contents */
- fbr_entry = fbr->ring_virtaddr;
- for (entry = 0; entry < fbr->num_entries; entry++) {
- fbr_entry->addr_hi = fbr->bus_high[entry];
- fbr_entry->addr_lo = fbr->bus_low[entry];
- fbr_entry->word2 = entry;
- fbr_entry++;
- }
-
- /* Set the address and parameters of Free buffer ring 1 and 0
- * into the 1310's registers
- */
- writel(upper_32_bits(fbr->ring_physaddr), base_hi);
- writel(lower_32_bits(fbr->ring_physaddr), base_lo);
- writel(fbr->num_entries - 1, num_des);
- writel(ET_DMA10_WRAP, full_offset);
-
- /* This variable tracks the free buffer ring 1 full position,
- * so it has to match the above.
- */
- fbr->local_full = ET_DMA10_WRAP;
- writel(((fbr->num_entries * LO_MARK_PERCENT_FOR_RX) / 100) - 1,
- min_des);
- }
-
- /* Program the number of packets we will receive before generating an
- * interrupt.
- * For version B silicon, this value gets updated once autoneg is
- *complete.
- */
- writel(PARM_RX_NUM_BUFS_DEF, &rx_dma->num_pkt_done);
-
- /* The "time_done" is not working correctly to coalesce interrupts
- * after a given time period, but rather is giving us an interrupt
- * regardless of whether we have received packets.
- * This value gets updated once autoneg is complete.
- */
- writel(PARM_RX_TIME_INT_DEF, &rx_dma->max_pkt_time);
-
- spin_unlock_irqrestore(&adapter->rcv_lock, flags);
-}
-
-/* et131x_config_tx_dma_regs - Set up the tx dma section of the JAGCore.
- *
- * Configure the transmit engine with the ring buffers we have created
- * and prepare it for use.
- */
-static void et131x_config_tx_dma_regs(struct et131x_adapter *adapter)
-{
- struct txdma_regs __iomem *txdma = &adapter->regs->txdma;
- struct tx_ring *tx_ring = &adapter->tx_ring;
-
- /* Load the hardware with the start of the transmit descriptor ring. */
- writel(upper_32_bits(tx_ring->tx_desc_ring_pa), &txdma->pr_base_hi);
- writel(lower_32_bits(tx_ring->tx_desc_ring_pa), &txdma->pr_base_lo);
-
- /* Initialise the transmit DMA engine */
- writel(NUM_DESC_PER_RING_TX - 1, &txdma->pr_num_des);
-
- /* Load the completion writeback physical address */
- writel(upper_32_bits(tx_ring->tx_status_pa), &txdma->dma_wb_base_hi);
- writel(lower_32_bits(tx_ring->tx_status_pa), &txdma->dma_wb_base_lo);
-
- *tx_ring->tx_status = 0;
-
- writel(0, &txdma->service_request);
- tx_ring->send_idx = 0;
-}
-
-/* et131x_adapter_setup - Set the adapter up as per cassini+ documentation */
-static void et131x_adapter_setup(struct et131x_adapter *adapter)
-{
- /* Configure the JAGCore */
- et131x_configure_global_regs(adapter);
-
- et1310_config_mac_regs1(adapter);
-
- /* Configure the MMC registers */
- /* All we need to do is initialize the Memory Control Register */
- writel(ET_MMC_ENABLE, &adapter->regs->mmc.mmc_ctrl);
-
- et1310_config_rxmac_regs(adapter);
- et1310_config_txmac_regs(adapter);
-
- et131x_config_rx_dma_regs(adapter);
- et131x_config_tx_dma_regs(adapter);
-
- et1310_config_macstat_regs(adapter);
-
- et1310_phy_power_switch(adapter, 0);
- et131x_xcvr_init(adapter);
-}
-
-/* et131x_soft_reset - Issue soft reset to the hardware, complete for ET1310 */
-static void et131x_soft_reset(struct et131x_adapter *adapter)
-{
- u32 reg;
-
- /* Disable MAC Core */
- reg = ET_MAC_CFG1_SOFT_RESET | ET_MAC_CFG1_SIM_RESET |
- ET_MAC_CFG1_RESET_RXMC | ET_MAC_CFG1_RESET_TXMC |
- ET_MAC_CFG1_RESET_RXFUNC | ET_MAC_CFG1_RESET_TXFUNC;
- writel(reg, &adapter->regs->mac.cfg1);
-
- reg = ET_RESET_ALL;
- writel(reg, &adapter->regs->global.sw_reset);
-
- reg = ET_MAC_CFG1_RESET_RXMC | ET_MAC_CFG1_RESET_TXMC |
- ET_MAC_CFG1_RESET_RXFUNC | ET_MAC_CFG1_RESET_TXFUNC;
- writel(reg, &adapter->regs->mac.cfg1);
- writel(0, &adapter->regs->mac.cfg1);
-}
-
-/* et131x_enable_interrupts - enable interrupt
- *
- * Enable the appropriate interrupts on the ET131x according to our
- * configuration
- */
-static void et131x_enable_interrupts(struct et131x_adapter *adapter)
-{
- u32 mask;
-
- /* Enable all global interrupts */
- if (adapter->flow == FLOW_TXONLY || adapter->flow == FLOW_BOTH)
- mask = INT_MASK_ENABLE;
- else
- mask = INT_MASK_ENABLE_NO_FLOW;
-
- writel(mask, &adapter->regs->global.int_mask);
-}
-
-/* et131x_disable_interrupts - interrupt disable
- *
- * Block all interrupts from the et131x device at the device itself
- */
-static void et131x_disable_interrupts(struct et131x_adapter *adapter)
-{
- /* Disable all global interrupts */
- writel(INT_MASK_DISABLE, &adapter->regs->global.int_mask);
-}
-
-/* et131x_tx_dma_disable - Stop of Tx_DMA on the ET1310 */
-static void et131x_tx_dma_disable(struct et131x_adapter *adapter)
-{
- /* Setup the transmit dma configuration register */
- writel(ET_TXDMA_CSR_HALT | ET_TXDMA_SNGL_EPKT,
- &adapter->regs->txdma.csr);
-}
-
-/* et131x_enable_txrx - Enable tx/rx queues */
-static void et131x_enable_txrx(struct net_device *netdev)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
-
- /* Enable the Tx and Rx DMA engines (if not already enabled) */
- et131x_rx_dma_enable(adapter);
- et131x_tx_dma_enable(adapter);
-
- /* Enable device interrupts */
- if (adapter->flags & FMP_ADAPTER_INTERRUPT_IN_USE)
- et131x_enable_interrupts(adapter);
-
- /* We're ready to move some data, so start the queue */
- netif_start_queue(netdev);
-}
-
-/* et131x_disable_txrx - Disable tx/rx queues */
-static void et131x_disable_txrx(struct net_device *netdev)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
-
- /* First thing is to stop the queue */
- netif_stop_queue(netdev);
-
- /* Stop the Tx and Rx DMA engines */
- et131x_rx_dma_disable(adapter);
- et131x_tx_dma_disable(adapter);
-
- /* Disable device interrupts */
- et131x_disable_interrupts(adapter);
-}
-
-/* et131x_init_send - Initialize send data structures */
-static void et131x_init_send(struct et131x_adapter *adapter)
-{
- u32 ct;
- struct tx_ring *tx_ring = &adapter->tx_ring;
- struct tcb *tcb = tx_ring->tcb_ring;
-
- tx_ring->tcb_qhead = tcb;
-
- memset(tcb, 0, sizeof(struct tcb) * NUM_TCB);
-
- /* Go through and set up each TCB */
- for (ct = 0; ct++ < NUM_TCB; tcb++)
- /* Set the link pointer in HW TCB to the next TCB in the
- * chain
- */
- tcb->next = tcb + 1;
-
- /* Set the tail pointer */
- tcb--;
- tx_ring->tcb_qtail = tcb;
- tcb->next = NULL;
- /* Curr send queue should now be empty */
- tx_ring->send_head = NULL;
- tx_ring->send_tail = NULL;
-}
-
-/* et1310_enable_phy_coma - called when network cable is unplugged
- *
- * driver receive an phy status change interrupt while in D0 and check that
- * phy_status is down.
- *
- * -- gate off JAGCore;
- * -- set gigE PHY in Coma mode
- * -- wake on phy_interrupt; Perform software reset JAGCore,
- * re-initialize jagcore and gigE PHY
- *
- * Add D0-ASPM-PhyLinkDown Support:
- * -- while in D0, when there is a phy_interrupt indicating phy link
- * down status, call the MPSetPhyComa routine to enter this active
- * state power saving mode
- * -- while in D0-ASPM-PhyLinkDown mode, when there is a phy_interrupt
- * indicating linkup status, call the MPDisablePhyComa routine to
- * restore JAGCore and gigE PHY
- */
-static void et1310_enable_phy_coma(struct et131x_adapter *adapter)
-{
- u32 pmcsr = readl(&adapter->regs->global.pm_csr);
-
- /* Save the GbE PHY speed and duplex modes. Need to restore this
- * when cable is plugged back in
- */
-
- /* Stop sending packets. */
- adapter->flags |= FMP_ADAPTER_LOWER_POWER;
-
- /* Wait for outstanding Receive packets */
- et131x_disable_txrx(adapter->netdev);
-
- /* Gate off JAGCore 3 clock domains */
- pmcsr &= ~ET_PMCSR_INIT;
- writel(pmcsr, &adapter->regs->global.pm_csr);
-
- /* Program gigE PHY in to Coma mode */
- pmcsr |= ET_PM_PHY_SW_COMA;
- writel(pmcsr, &adapter->regs->global.pm_csr);
-}
-
-/* et1310_disable_phy_coma - Disable the Phy Coma Mode */
-static void et1310_disable_phy_coma(struct et131x_adapter *adapter)
-{
- u32 pmcsr;
-
- pmcsr = readl(&adapter->regs->global.pm_csr);
-
- /* Disable phy_sw_coma register and re-enable JAGCore clocks */
- pmcsr |= ET_PMCSR_INIT;
- pmcsr &= ~ET_PM_PHY_SW_COMA;
- writel(pmcsr, &adapter->regs->global.pm_csr);
-
- /* Restore the GbE PHY speed and duplex modes;
- * Reset JAGCore; re-configure and initialize JAGCore and gigE PHY
- */
-
- /* Re-initialize the send structures */
- et131x_init_send(adapter);
-
- /* Bring the device back to the state it was during init prior to
- * autonegotiation being complete. This way, when we get the auto-neg
- * complete interrupt, we can complete init by calling ConfigMacREGS2.
- */
- et131x_soft_reset(adapter);
-
- /* setup et1310 as per the documentation ?? */
- et131x_adapter_setup(adapter);
-
- /* Allow Tx to restart */
- adapter->flags &= ~FMP_ADAPTER_LOWER_POWER;
-
- et131x_enable_txrx(adapter->netdev);
-}
-
-static inline u32 bump_free_buff_ring(u32 *free_buff_ring, u32 limit)
-{
- u32 tmp_free_buff_ring = *free_buff_ring;
-
- tmp_free_buff_ring++;
- /* This works for all cases where limit < 1024. The 1023 case
- * works because 1023++ is 1024 which means the if condition is not
- * taken but the carry of the bit into the wrap bit toggles the wrap
- * value correctly
- */
- if ((tmp_free_buff_ring & ET_DMA10_MASK) > limit) {
- tmp_free_buff_ring &= ~ET_DMA10_MASK;
- tmp_free_buff_ring ^= ET_DMA10_WRAP;
- }
- /* For the 1023 case */
- tmp_free_buff_ring &= (ET_DMA10_MASK | ET_DMA10_WRAP);
- *free_buff_ring = tmp_free_buff_ring;
- return tmp_free_buff_ring;
-}
-
-/* et131x_rx_dma_memory_alloc
- *
- * Allocates Free buffer ring 1 for sure, free buffer ring 0 if required,
- * and the Packet Status Ring.
- */
-static int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
-{
- u8 id;
- u32 i, j;
- u32 bufsize;
- u32 psr_size;
- u32 fbr_chunksize;
- struct rx_ring *rx_ring = &adapter->rx_ring;
- struct fbr_lookup *fbr;
-
- /* Alloc memory for the lookup table */
- rx_ring->fbr[0] = kmalloc(sizeof(*fbr), GFP_KERNEL);
- if (rx_ring->fbr[0] == NULL)
- return -ENOMEM;
- rx_ring->fbr[1] = kmalloc(sizeof(*fbr), GFP_KERNEL);
- if (rx_ring->fbr[1] == NULL)
- return -ENOMEM;
-
- /* The first thing we will do is configure the sizes of the buffer
- * rings. These will change based on jumbo packet support. Larger
- * jumbo packets increases the size of each entry in FBR0, and the
- * number of entries in FBR0, while at the same time decreasing the
- * number of entries in FBR1.
- *
- * FBR1 holds "large" frames, FBR0 holds "small" frames. If FBR1
- * entries are huge in order to accommodate a "jumbo" frame, then it
- * will have less entries. Conversely, FBR1 will now be relied upon
- * to carry more "normal" frames, thus it's entry size also increases
- * and the number of entries goes up too (since it now carries
- * "small" + "regular" packets.
- *
- * In this scheme, we try to maintain 512 entries between the two
- * rings. Also, FBR1 remains a constant size - when it's size doubles
- * the number of entries halves. FBR0 increases in size, however.
- */
- if (adapter->registry_jumbo_packet < 2048) {
- rx_ring->fbr[0]->buffsize = 256;
- rx_ring->fbr[0]->num_entries = 512;
- rx_ring->fbr[1]->buffsize = 2048;
- rx_ring->fbr[1]->num_entries = 512;
- } else if (adapter->registry_jumbo_packet < 4096) {
- rx_ring->fbr[0]->buffsize = 512;
- rx_ring->fbr[0]->num_entries = 1024;
- rx_ring->fbr[1]->buffsize = 4096;
- rx_ring->fbr[1]->num_entries = 512;
- } else {
- rx_ring->fbr[0]->buffsize = 1024;
- rx_ring->fbr[0]->num_entries = 768;
- rx_ring->fbr[1]->buffsize = 16384;
- rx_ring->fbr[1]->num_entries = 128;
- }
-
- rx_ring->psr_entries = rx_ring->fbr[0]->num_entries +
- rx_ring->fbr[1]->num_entries;
-
- for (id = 0; id < NUM_FBRS; id++) {
- fbr = rx_ring->fbr[id];
- /* Allocate an area of memory for Free Buffer Ring */
- bufsize = sizeof(struct fbr_desc) * fbr->num_entries;
- fbr->ring_virtaddr = dma_alloc_coherent(&adapter->pdev->dev,
- bufsize,
- &fbr->ring_physaddr,
- GFP_KERNEL);
- if (!fbr->ring_virtaddr) {
- dev_err(&adapter->pdev->dev,
- "Cannot alloc memory for Free Buffer Ring %d\n",
- id);
- return -ENOMEM;
- }
- }
-
- for (id = 0; id < NUM_FBRS; id++) {
- fbr = rx_ring->fbr[id];
- fbr_chunksize = (FBR_CHUNKS * fbr->buffsize);
-
- for (i = 0; i < fbr->num_entries / FBR_CHUNKS; i++) {
- dma_addr_t fbr_physaddr;
-
- fbr->mem_virtaddrs[i] = dma_alloc_coherent(
- &adapter->pdev->dev, fbr_chunksize,
- &fbr->mem_physaddrs[i],
- GFP_KERNEL);
-
- if (!fbr->mem_virtaddrs[i]) {
- dev_err(&adapter->pdev->dev,
- "Could not alloc memory\n");
- return -ENOMEM;
- }
-
- /* See NOTE in "Save Physical Address" comment above */
- fbr_physaddr = fbr->mem_physaddrs[i];
-
- for (j = 0; j < FBR_CHUNKS; j++) {
- u32 k = (i * FBR_CHUNKS) + j;
-
- /* Save the Virtual address of this index for
- * quick access later
- */
- fbr->virt[k] = (u8 *)fbr->mem_virtaddrs[i] +
- (j * fbr->buffsize);
-
- /* now store the physical address in the
- * descriptor so the device can access it
- */
- fbr->bus_high[k] = upper_32_bits(fbr_physaddr);
- fbr->bus_low[k] = lower_32_bits(fbr_physaddr);
- fbr_physaddr += fbr->buffsize;
- }
- }
- }
-
- /* Allocate an area of memory for FIFO of Packet Status ring entries */
- psr_size = sizeof(struct pkt_stat_desc) * rx_ring->psr_entries;
-
- rx_ring->ps_ring_virtaddr = dma_alloc_coherent(&adapter->pdev->dev,
- psr_size,
- &rx_ring->ps_ring_physaddr,
- GFP_KERNEL);
-
- if (!rx_ring->ps_ring_virtaddr) {
- dev_err(&adapter->pdev->dev,
- "Cannot alloc memory for Packet Status Ring\n");
- return -ENOMEM;
- }
-
- /* NOTE : dma_alloc_coherent(), used above to alloc DMA regions,
- * ALWAYS returns SAC (32-bit) addresses. If DAC (64-bit) addresses
- * are ever returned, make sure the high part is retrieved here before
- * storing the adjusted address.
- */
-
- /* Allocate an area of memory for writeback of status information */
- rx_ring->rx_status_block = dma_alloc_coherent(&adapter->pdev->dev,
- sizeof(struct rx_status_block),
- &rx_ring->rx_status_bus,
- GFP_KERNEL);
- if (!rx_ring->rx_status_block) {
- dev_err(&adapter->pdev->dev,
- "Cannot alloc memory for Status Block\n");
- return -ENOMEM;
- }
- rx_ring->num_rfd = NIC_DEFAULT_NUM_RFD;
-
- /* The RFDs are going to be put on lists later on, so initialize the
- * lists now.
- */
- INIT_LIST_HEAD(&rx_ring->recv_list);
- return 0;
-}
-
-/* et131x_rx_dma_memory_free - Free all memory allocated within this module */
-static void et131x_rx_dma_memory_free(struct et131x_adapter *adapter)
-{
- u8 id;
- u32 ii;
- u32 bufsize;
- u32 psr_size;
- struct rfd *rfd;
- struct rx_ring *rx_ring = &adapter->rx_ring;
- struct fbr_lookup *fbr;
-
- /* Free RFDs and associated packet descriptors */
- WARN_ON(rx_ring->num_ready_recv != rx_ring->num_rfd);
-
- while (!list_empty(&rx_ring->recv_list)) {
- rfd = list_entry(rx_ring->recv_list.next,
- struct rfd, list_node);
-
- list_del(&rfd->list_node);
- rfd->skb = NULL;
- kfree(rfd);
- }
-
- /* Free Free Buffer Rings */
- for (id = 0; id < NUM_FBRS; id++) {
- fbr = rx_ring->fbr[id];
-
- if (!fbr || !fbr->ring_virtaddr)
- continue;
-
- /* First the packet memory */
- for (ii = 0; ii < fbr->num_entries / FBR_CHUNKS; ii++) {
- if (fbr->mem_virtaddrs[ii]) {
- bufsize = fbr->buffsize * FBR_CHUNKS;
-
- dma_free_coherent(&adapter->pdev->dev,
- bufsize,
- fbr->mem_virtaddrs[ii],
- fbr->mem_physaddrs[ii]);
-
- fbr->mem_virtaddrs[ii] = NULL;
- }
- }
-
- bufsize = sizeof(struct fbr_desc) * fbr->num_entries;
-
- dma_free_coherent(&adapter->pdev->dev,
- bufsize,
- fbr->ring_virtaddr,
- fbr->ring_physaddr);
-
- fbr->ring_virtaddr = NULL;
- }
-
- /* Free Packet Status Ring */
- if (rx_ring->ps_ring_virtaddr) {
- psr_size = sizeof(struct pkt_stat_desc) * rx_ring->psr_entries;
-
- dma_free_coherent(&adapter->pdev->dev, psr_size,
- rx_ring->ps_ring_virtaddr,
- rx_ring->ps_ring_physaddr);
-
- rx_ring->ps_ring_virtaddr = NULL;
- }
-
- /* Free area of memory for the writeback of status information */
- if (rx_ring->rx_status_block) {
- dma_free_coherent(&adapter->pdev->dev,
- sizeof(struct rx_status_block),
- rx_ring->rx_status_block,
- rx_ring->rx_status_bus);
- rx_ring->rx_status_block = NULL;
- }
-
- /* Free the FBR Lookup Table */
- kfree(rx_ring->fbr[0]);
- kfree(rx_ring->fbr[1]);
-
- /* Reset Counters */
- rx_ring->num_ready_recv = 0;
-}
-
-/* et131x_init_recv - Initialize receive data structures */
-static int et131x_init_recv(struct et131x_adapter *adapter)
-{
- struct rfd *rfd;
- u32 rfdct;
- struct rx_ring *rx_ring = &adapter->rx_ring;
-
- /* Setup each RFD */
- for (rfdct = 0; rfdct < rx_ring->num_rfd; rfdct++) {
- rfd = kzalloc(sizeof(*rfd), GFP_ATOMIC | GFP_DMA);
- if (!rfd)
- return -ENOMEM;
-
- rfd->skb = NULL;
-
- /* Add this RFD to the recv_list */
- list_add_tail(&rfd->list_node, &rx_ring->recv_list);
-
- /* Increment the available RFD's */
- rx_ring->num_ready_recv++;
- }
-
- return 0;
-}
-
-/* et131x_set_rx_dma_timer - Set the heartbeat timer according to line rate */
-static void et131x_set_rx_dma_timer(struct et131x_adapter *adapter)
-{
- struct phy_device *phydev = adapter->phydev;
-
- /* For version B silicon, we do not use the RxDMA timer for 10 and 100
- * Mbits/s line rates. We do not enable and RxDMA interrupt coalescing.
- */
- if ((phydev->speed == SPEED_100) || (phydev->speed == SPEED_10)) {
- writel(0, &adapter->regs->rxdma.max_pkt_time);
- writel(1, &adapter->regs->rxdma.num_pkt_done);
- }
-}
-
-/* NICReturnRFD - Recycle a RFD and put it back onto the receive list
- * @adapter: pointer to our adapter
- * @rfd: pointer to the RFD
- */
-static void nic_return_rfd(struct et131x_adapter *adapter, struct rfd *rfd)
-{
- struct rx_ring *rx_local = &adapter->rx_ring;
- struct rxdma_regs __iomem *rx_dma = &adapter->regs->rxdma;
- u16 buff_index = rfd->bufferindex;
- u8 ring_index = rfd->ringindex;
- unsigned long flags;
- struct fbr_lookup *fbr = rx_local->fbr[ring_index];
-
- /* We don't use any of the OOB data besides status. Otherwise, we
- * need to clean up OOB data
- */
- if (buff_index < fbr->num_entries) {
- u32 free_buff_ring;
- u32 __iomem *offset;
- struct fbr_desc *next;
-
- if (ring_index == 0)
- offset = &rx_dma->fbr0_full_offset;
- else
- offset = &rx_dma->fbr1_full_offset;
-
- next = (struct fbr_desc *)(fbr->ring_virtaddr) +
- INDEX10(fbr->local_full);
-
- /* Handle the Free Buffer Ring advancement here. Write
- * the PA / Buffer Index for the returned buffer into
- * the oldest (next to be freed)FBR entry
- */
- next->addr_hi = fbr->bus_high[buff_index];
- next->addr_lo = fbr->bus_low[buff_index];
- next->word2 = buff_index;
-
- free_buff_ring = bump_free_buff_ring(&fbr->local_full,
- fbr->num_entries - 1);
- writel(free_buff_ring, offset);
- } else {
- dev_err(&adapter->pdev->dev,
- "%s illegal Buffer Index returned\n", __func__);
- }
-
- /* The processing on this RFD is done, so put it back on the tail of
- * our list
- */
- spin_lock_irqsave(&adapter->rcv_lock, flags);
- list_add_tail(&rfd->list_node, &rx_local->recv_list);
- rx_local->num_ready_recv++;
- spin_unlock_irqrestore(&adapter->rcv_lock, flags);
-
- WARN_ON(rx_local->num_ready_recv > rx_local->num_rfd);
-}
-
-/* nic_rx_pkts - Checks the hardware for available packets
- *
- * Returns rfd, a pointer to our MPRFD.
- *
- * Checks the hardware for available packets, using completion ring
- * If packets are available, it gets an RFD from the recv_list, attaches
- * the packet to it, puts the RFD in the RecvPendList, and also returns
- * the pointer to the RFD.
- */
-static struct rfd *nic_rx_pkts(struct et131x_adapter *adapter)
-{
- struct rx_ring *rx_local = &adapter->rx_ring;
- struct rx_status_block *status;
- struct pkt_stat_desc *psr;
- struct rfd *rfd;
- unsigned long flags;
- struct list_head *element;
- u8 ring_index;
- u16 buff_index;
- u32 len;
- u32 word0;
- u32 word1;
- struct sk_buff *skb;
- struct fbr_lookup *fbr;
-
- /* RX Status block is written by the DMA engine prior to every
- * interrupt. It contains the next to be used entry in the Packet
- * Status Ring, and also the two Free Buffer rings.
- */
- status = rx_local->rx_status_block;
- word1 = status->word1 >> 16; /* Get the useful bits */
-
- /* Check the PSR and wrap bits do not match */
- if ((word1 & 0x1FFF) == (rx_local->local_psr_full & 0x1FFF))
- return NULL; /* Looks like this ring is not updated yet */
-
- /* The packet status ring indicates that data is available. */
- psr = (struct pkt_stat_desc *)(rx_local->ps_ring_virtaddr) +
- (rx_local->local_psr_full & 0xFFF);
-
- /* Grab any information that is required once the PSR is advanced,
- * since we can no longer rely on the memory being accurate
- */
- len = psr->word1 & 0xFFFF;
- ring_index = (psr->word1 >> 26) & 0x03;
- fbr = rx_local->fbr[ring_index];
- buff_index = (psr->word1 >> 16) & 0x3FF;
- word0 = psr->word0;
-
- /* Indicate that we have used this PSR entry. */
- /* FIXME wrap 12 */
- add_12bit(&rx_local->local_psr_full, 1);
- if ((rx_local->local_psr_full & 0xFFF) > rx_local->psr_entries - 1) {
- /* Clear psr full and toggle the wrap bit */
- rx_local->local_psr_full &= ~0xFFF;
- rx_local->local_psr_full ^= 0x1000;
- }
-
- writel(rx_local->local_psr_full, &adapter->regs->rxdma.psr_full_offset);
-
- if (ring_index > 1 || buff_index > fbr->num_entries - 1) {
- /* Illegal buffer or ring index cannot be used by S/W*/
- dev_err(&adapter->pdev->dev,
- "NICRxPkts PSR Entry %d indicates length of %d and/or bad bi(%d)\n",
- rx_local->local_psr_full & 0xFFF, len, buff_index);
- return NULL;
- }
-
- /* Get and fill the RFD. */
- spin_lock_irqsave(&adapter->rcv_lock, flags);
-
- element = rx_local->recv_list.next;
- rfd = list_entry(element, struct rfd, list_node);
-
- if (!rfd) {
- spin_unlock_irqrestore(&adapter->rcv_lock, flags);
- return NULL;
- }
-
- list_del(&rfd->list_node);
- rx_local->num_ready_recv--;
-
- spin_unlock_irqrestore(&adapter->rcv_lock, flags);
-
- rfd->bufferindex = buff_index;
- rfd->ringindex = ring_index;
-
- /* In V1 silicon, there is a bug which screws up filtering of runt
- * packets. Therefore runt packet filtering is disabled in the MAC and
- * the packets are dropped here. They are also counted here.
- */
- if (len < (NIC_MIN_PACKET_SIZE + 4)) {
- adapter->stats.rx_other_errs++;
- rfd->len = 0;
- goto out;
- }
-
- if ((word0 & ALCATEL_MULTICAST_PKT) && !(word0 & ALCATEL_BROADCAST_PKT))
- adapter->stats.multicast_pkts_rcvd++;
-
- rfd->len = len;
-
- skb = dev_alloc_skb(rfd->len + 2);
- if (!skb) {
- dev_err(&adapter->pdev->dev, "Couldn't alloc an SKB for Rx\n");
- return NULL;
- }
-
- adapter->netdev->stats.rx_bytes += rfd->len;
-
- memcpy(skb_put(skb, rfd->len), fbr->virt[buff_index], rfd->len);
-
- skb->protocol = eth_type_trans(skb, adapter->netdev);
- skb->ip_summed = CHECKSUM_NONE;
- netif_receive_skb(skb);
-
-out:
- nic_return_rfd(adapter, rfd);
- return rfd;
-}
-
-/* et131x_handle_recv_pkts - Interrupt handler for receive processing
- *
- * Assumption, Rcv spinlock has been acquired.
- */
-static int et131x_handle_recv_pkts(struct et131x_adapter *adapter, int budget)
-{
- struct rfd *rfd = NULL;
- int count = 0;
- int limit = budget;
- bool done = true;
- struct rx_ring *rx_ring = &adapter->rx_ring;
-
- if (budget > MAX_PACKETS_HANDLED)
- limit = MAX_PACKETS_HANDLED;
-
- /* Process up to available RFD's */
- while (count < limit) {
- if (list_empty(&rx_ring->recv_list)) {
- WARN_ON(rx_ring->num_ready_recv != 0);
- done = false;
- break;
- }
-
- rfd = nic_rx_pkts(adapter);
-
- if (rfd == NULL)
- break;
-
- /* Do not receive any packets until a filter has been set.
- * Do not receive any packets until we have link.
- * If length is zero, return the RFD in order to advance the
- * Free buffer ring.
- */
- if (!adapter->packet_filter ||
- !netif_carrier_ok(adapter->netdev) ||
- rfd->len == 0)
- continue;
-
- /* Increment the number of packets we received */
- adapter->netdev->stats.rx_packets++;
-
- /* Set the status on the packet, either resources or success */
- if (rx_ring->num_ready_recv < RFD_LOW_WATER_MARK)
- dev_warn(&adapter->pdev->dev, "RFD's are running out\n");
-
- count++;
- }
-
- if (count == limit || !done) {
- rx_ring->unfinished_receives = true;
- writel(PARM_TX_TIME_INT_DEF * NANO_IN_A_MICRO,
- &adapter->regs->global.watchdog_timer);
- } else {
- /* Watchdog timer will disable itself if appropriate. */
- rx_ring->unfinished_receives = false;
- }
-
- return count;
-}
-
-/* et131x_tx_dma_memory_alloc
- *
- * Allocates memory that will be visible both to the device and to the CPU.
- * The OS will pass us packets, pointers to which we will insert in the Tx
- * Descriptor queue. The device will read this queue to find the packets in
- * memory. The device will update the "status" in memory each time it xmits a
- * packet.
- */
-static int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter)
-{
- int desc_size = 0;
- struct tx_ring *tx_ring = &adapter->tx_ring;
-
- /* Allocate memory for the TCB's (Transmit Control Block) */
- tx_ring->tcb_ring = kcalloc(NUM_TCB, sizeof(struct tcb),
- GFP_ATOMIC | GFP_DMA);
- if (!tx_ring->tcb_ring)
- return -ENOMEM;
-
- desc_size = (sizeof(struct tx_desc) * NUM_DESC_PER_RING_TX);
- tx_ring->tx_desc_ring = dma_alloc_coherent(&adapter->pdev->dev,
- desc_size,
- &tx_ring->tx_desc_ring_pa,
- GFP_KERNEL);
- if (!tx_ring->tx_desc_ring) {
- dev_err(&adapter->pdev->dev,
- "Cannot alloc memory for Tx Ring\n");
- return -ENOMEM;
- }
-
- /* Save physical address
- *
- * NOTE: dma_alloc_coherent(), used above to alloc DMA regions,
- * ALWAYS returns SAC (32-bit) addresses. If DAC (64-bit) addresses
- * are ever returned, make sure the high part is retrieved here before
- * storing the adjusted address.
- */
- /* Allocate memory for the Tx status block */
- tx_ring->tx_status = dma_alloc_coherent(&adapter->pdev->dev,
- sizeof(u32),
- &tx_ring->tx_status_pa,
- GFP_KERNEL);
- if (!tx_ring->tx_status_pa) {
- dev_err(&adapter->pdev->dev,
- "Cannot alloc memory for Tx status block\n");
- return -ENOMEM;
- }
- return 0;
-}
-
-/* et131x_tx_dma_memory_free - Free all memory allocated within this module */
-static void et131x_tx_dma_memory_free(struct et131x_adapter *adapter)
-{
- int desc_size = 0;
- struct tx_ring *tx_ring = &adapter->tx_ring;
-
- if (tx_ring->tx_desc_ring) {
- /* Free memory relating to Tx rings here */
- desc_size = (sizeof(struct tx_desc) * NUM_DESC_PER_RING_TX);
- dma_free_coherent(&adapter->pdev->dev,
- desc_size,
- tx_ring->tx_desc_ring,
- tx_ring->tx_desc_ring_pa);
- tx_ring->tx_desc_ring = NULL;
- }
-
- /* Free memory for the Tx status block */
- if (tx_ring->tx_status) {
- dma_free_coherent(&adapter->pdev->dev,
- sizeof(u32),
- tx_ring->tx_status,
- tx_ring->tx_status_pa);
-
- tx_ring->tx_status = NULL;
- }
- /* Free the memory for the tcb structures */
- kfree(tx_ring->tcb_ring);
-}
-
-/* nic_send_packet - NIC specific send handler for version B silicon.
- * @adapter: pointer to our adapter
- * @tcb: pointer to struct tcb
- */
-static int nic_send_packet(struct et131x_adapter *adapter, struct tcb *tcb)
-{
- u32 i;
- struct tx_desc desc[24]; /* 24 x 16 byte */
- u32 frag = 0;
- u32 thiscopy, remainder;
- struct sk_buff *skb = tcb->skb;
- u32 nr_frags = skb_shinfo(skb)->nr_frags + 1;
- struct skb_frag_struct *frags = &skb_shinfo(skb)->frags[0];
- struct phy_device *phydev = adapter->phydev;
- dma_addr_t dma_addr;
- struct tx_ring *tx_ring = &adapter->tx_ring;
-
- /* Part of the optimizations of this send routine restrict us to
- * sending 24 fragments at a pass. In practice we should never see
- * more than 5 fragments.
- *
- * NOTE: The older version of this function (below) can handle any
- * number of fragments. If needed, we can call this function,
- * although it is less efficient.
- */
-
- /* nr_frags should be no more than 18. */
- BUILD_BUG_ON(MAX_SKB_FRAGS + 1 > 23);
-
- memset(desc, 0, sizeof(struct tx_desc) * (nr_frags + 1));
-
- for (i = 0; i < nr_frags; i++) {
- /* If there is something in this element, lets get a
- * descriptor from the ring and get the necessary data
- */
- if (i == 0) {
- /* If the fragments are smaller than a standard MTU,
- * then map them to a single descriptor in the Tx
- * Desc ring. However, if they're larger, as is
- * possible with support for jumbo packets, then
- * split them each across 2 descriptors.
- *
- * This will work until we determine why the hardware
- * doesn't seem to like large fragments.
- */
- if (skb_headlen(skb) <= 1514) {
- /* Low 16bits are length, high is vlan and
- * unused currently so zero
- */
- desc[frag].len_vlan = skb_headlen(skb);
- dma_addr = dma_map_single(&adapter->pdev->dev,
- skb->data,
- skb_headlen(skb),
- DMA_TO_DEVICE);
- desc[frag].addr_lo = lower_32_bits(dma_addr);
- desc[frag].addr_hi = upper_32_bits(dma_addr);
- frag++;
- } else {
- desc[frag].len_vlan = skb_headlen(skb) / 2;
- dma_addr = dma_map_single(&adapter->pdev->dev,
- skb->data,
- (skb_headlen(skb) / 2),
- DMA_TO_DEVICE);
- desc[frag].addr_lo = lower_32_bits(dma_addr);
- desc[frag].addr_hi = upper_32_bits(dma_addr);
- frag++;
-
- desc[frag].len_vlan = skb_headlen(skb) / 2;
- dma_addr = dma_map_single(&adapter->pdev->dev,
- skb->data +
- (skb_headlen(skb) / 2),
- (skb_headlen(skb) / 2),
- DMA_TO_DEVICE);
- desc[frag].addr_lo = lower_32_bits(dma_addr);
- desc[frag].addr_hi = upper_32_bits(dma_addr);
- frag++;
- }
- } else {
- desc[frag].len_vlan = frags[i - 1].size;
- dma_addr = skb_frag_dma_map(&adapter->pdev->dev,
- &frags[i - 1],
- 0,
- frags[i - 1].size,
- DMA_TO_DEVICE);
- desc[frag].addr_lo = lower_32_bits(dma_addr);
- desc[frag].addr_hi = upper_32_bits(dma_addr);
- frag++;
- }
- }
-
- if (phydev && phydev->speed == SPEED_1000) {
- if (++tx_ring->since_irq == PARM_TX_NUM_BUFS_DEF) {
- /* Last element & Interrupt flag */
- desc[frag - 1].flags =
- TXDESC_FLAG_INTPROC | TXDESC_FLAG_LASTPKT;
- tx_ring->since_irq = 0;
- } else { /* Last element */
- desc[frag - 1].flags = TXDESC_FLAG_LASTPKT;
- }
- } else {
- desc[frag - 1].flags =
- TXDESC_FLAG_INTPROC | TXDESC_FLAG_LASTPKT;
- }
-
- desc[0].flags |= TXDESC_FLAG_FIRSTPKT;
-
- tcb->index_start = tx_ring->send_idx;
- tcb->stale = 0;
-
- thiscopy = NUM_DESC_PER_RING_TX - INDEX10(tx_ring->send_idx);
-
- if (thiscopy >= frag) {
- remainder = 0;
- thiscopy = frag;
- } else {
- remainder = frag - thiscopy;
- }
-
- memcpy(tx_ring->tx_desc_ring + INDEX10(tx_ring->send_idx),
- desc,
- sizeof(struct tx_desc) * thiscopy);
-
- add_10bit(&tx_ring->send_idx, thiscopy);
-
- if (INDEX10(tx_ring->send_idx) == 0 ||
- INDEX10(tx_ring->send_idx) == NUM_DESC_PER_RING_TX) {
- tx_ring->send_idx &= ~ET_DMA10_MASK;
- tx_ring->send_idx ^= ET_DMA10_WRAP;
- }
-
- if (remainder) {
- memcpy(tx_ring->tx_desc_ring,
- desc + thiscopy,
- sizeof(struct tx_desc) * remainder);
-
- add_10bit(&tx_ring->send_idx, remainder);
- }
-
- if (INDEX10(tx_ring->send_idx) == 0) {
- if (tx_ring->send_idx)
- tcb->index = NUM_DESC_PER_RING_TX - 1;
- else
- tcb->index = ET_DMA10_WRAP|(NUM_DESC_PER_RING_TX - 1);
- } else {
- tcb->index = tx_ring->send_idx - 1;
- }
-
- spin_lock(&adapter->tcb_send_qlock);
-
- if (tx_ring->send_tail)
- tx_ring->send_tail->next = tcb;
- else
- tx_ring->send_head = tcb;
-
- tx_ring->send_tail = tcb;
-
- WARN_ON(tcb->next != NULL);
-
- tx_ring->used++;
-
- spin_unlock(&adapter->tcb_send_qlock);
-
- /* Write the new write pointer back to the device. */
- writel(tx_ring->send_idx, &adapter->regs->txdma.service_request);
-
- /* For Gig only, we use Tx Interrupt coalescing. Enable the software
- * timer to wake us up if this packet isn't followed by N more.
- */
- if (phydev && phydev->speed == SPEED_1000) {
- writel(PARM_TX_TIME_INT_DEF * NANO_IN_A_MICRO,
- &adapter->regs->global.watchdog_timer);
- }
- return 0;
-}
-
-/* send_packet - Do the work to send a packet
- *
- * Assumption: Send spinlock has been acquired
- */
-static int send_packet(struct sk_buff *skb, struct et131x_adapter *adapter)
-{
- int status;
- struct tcb *tcb;
- unsigned long flags;
- struct tx_ring *tx_ring = &adapter->tx_ring;
-
- /* All packets must have at least a MAC address and a protocol type */
- if (skb->len < ETH_HLEN)
- return -EIO;
-
- /* Get a TCB for this packet */
- spin_lock_irqsave(&adapter->tcb_ready_qlock, flags);
-
- tcb = tx_ring->tcb_qhead;
-
- if (tcb == NULL) {
- spin_unlock_irqrestore(&adapter->tcb_ready_qlock, flags);
- return -ENOMEM;
- }
-
- tx_ring->tcb_qhead = tcb->next;
-
- if (tx_ring->tcb_qhead == NULL)
- tx_ring->tcb_qtail = NULL;
-
- spin_unlock_irqrestore(&adapter->tcb_ready_qlock, flags);
-
- tcb->skb = skb;
- tcb->next = NULL;
-
- /* Call the NIC specific send handler. */
- status = nic_send_packet(adapter, tcb);
-
- if (status != 0) {
- spin_lock_irqsave(&adapter->tcb_ready_qlock, flags);
-
- if (tx_ring->tcb_qtail)
- tx_ring->tcb_qtail->next = tcb;
- else
- /* Apparently ready Q is empty. */
- tx_ring->tcb_qhead = tcb;
-
- tx_ring->tcb_qtail = tcb;
- spin_unlock_irqrestore(&adapter->tcb_ready_qlock, flags);
- return status;
- }
- WARN_ON(tx_ring->used > NUM_TCB);
- return 0;
-}
-
-/* free_send_packet - Recycle a struct tcb
- * @adapter: pointer to our adapter
- * @tcb: pointer to struct tcb
- *
- * Complete the packet if necessary
- * Assumption - Send spinlock has been acquired
- */
-static inline void free_send_packet(struct et131x_adapter *adapter,
- struct tcb *tcb)
-{
- unsigned long flags;
- struct tx_desc *desc = NULL;
- struct net_device_stats *stats = &adapter->netdev->stats;
- struct tx_ring *tx_ring = &adapter->tx_ring;
- u64 dma_addr;
-
- if (tcb->skb) {
- stats->tx_bytes += tcb->skb->len;
-
- /* Iterate through the TX descriptors on the ring
- * corresponding to this packet and umap the fragments
- * they point to
- */
- do {
- desc = tx_ring->tx_desc_ring +
- INDEX10(tcb->index_start);
-
- dma_addr = desc->addr_lo;
- dma_addr |= (u64)desc->addr_hi << 32;
-
- dma_unmap_single(&adapter->pdev->dev,
- dma_addr,
- desc->len_vlan, DMA_TO_DEVICE);
-
- add_10bit(&tcb->index_start, 1);
- if (INDEX10(tcb->index_start) >=
- NUM_DESC_PER_RING_TX) {
- tcb->index_start &= ~ET_DMA10_MASK;
- tcb->index_start ^= ET_DMA10_WRAP;
- }
- } while (desc != tx_ring->tx_desc_ring + INDEX10(tcb->index));
-
- dev_kfree_skb_any(tcb->skb);
- }
-
- memset(tcb, 0, sizeof(struct tcb));
-
- /* Add the TCB to the Ready Q */
- spin_lock_irqsave(&adapter->tcb_ready_qlock, flags);
-
- stats->tx_packets++;
-
- if (tx_ring->tcb_qtail)
- tx_ring->tcb_qtail->next = tcb;
- else
- /* Apparently ready Q is empty. */
- tx_ring->tcb_qhead = tcb;
-
- tx_ring->tcb_qtail = tcb;
-
- spin_unlock_irqrestore(&adapter->tcb_ready_qlock, flags);
- WARN_ON(tx_ring->used < 0);
-}
-
-/* et131x_free_busy_send_packets - Free and complete the stopped active sends
- *
- * Assumption - Send spinlock has been acquired
- */
-static void et131x_free_busy_send_packets(struct et131x_adapter *adapter)
-{
- struct tcb *tcb;
- unsigned long flags;
- u32 freed = 0;
- struct tx_ring *tx_ring = &adapter->tx_ring;
-
- /* Any packets being sent? Check the first TCB on the send list */
- spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
-
- tcb = tx_ring->send_head;
-
- while (tcb != NULL && freed < NUM_TCB) {
- struct tcb *next = tcb->next;
-
- tx_ring->send_head = next;
-
- if (next == NULL)
- tx_ring->send_tail = NULL;
-
- tx_ring->used--;
-
- spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
-
- freed++;
- free_send_packet(adapter, tcb);
-
- spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
-
- tcb = tx_ring->send_head;
- }
-
- WARN_ON(freed == NUM_TCB);
-
- spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
-
- tx_ring->used = 0;
-}
-
-/* et131x_handle_send_pkts - Interrupt handler for sending processing
- *
- * Re-claim the send resources, complete sends and get more to send from
- * the send wait queue.
- *
- * Assumption - Send spinlock has been acquired
- */
-static void et131x_handle_send_pkts(struct et131x_adapter *adapter)
-{
- unsigned long flags;
- u32 serviced;
- struct tcb *tcb;
- u32 index;
- struct tx_ring *tx_ring = &adapter->tx_ring;
-
- serviced = readl(&adapter->regs->txdma.new_service_complete);
- index = INDEX10(serviced);
-
- /* Has the ring wrapped? Process any descriptors that do not have
- * the same "wrap" indicator as the current completion indicator
- */
- spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
-
- tcb = tx_ring->send_head;
-
- while (tcb &&
- ((serviced ^ tcb->index) & ET_DMA10_WRAP) &&
- index < INDEX10(tcb->index)) {
- tx_ring->used--;
- tx_ring->send_head = tcb->next;
- if (tcb->next == NULL)
- tx_ring->send_tail = NULL;
-
- spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
- free_send_packet(adapter, tcb);
- spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
-
- /* Goto the next packet */
- tcb = tx_ring->send_head;
- }
- while (tcb &&
- !((serviced ^ tcb->index) & ET_DMA10_WRAP) &&
- index > (tcb->index & ET_DMA10_MASK)) {
- tx_ring->used--;
- tx_ring->send_head = tcb->next;
- if (tcb->next == NULL)
- tx_ring->send_tail = NULL;
-
- spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
- free_send_packet(adapter, tcb);
- spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
-
- /* Goto the next packet */
- tcb = tx_ring->send_head;
- }
-
- /* Wake up the queue when we hit a low-water mark */
- if (tx_ring->used <= NUM_TCB / 3)
- netif_wake_queue(adapter->netdev);
-
- spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
-}
-
-static int et131x_get_settings(struct net_device *netdev,
- struct ethtool_cmd *cmd)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
-
- return phy_ethtool_gset(adapter->phydev, cmd);
-}
-
-static int et131x_set_settings(struct net_device *netdev,
- struct ethtool_cmd *cmd)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
-
- return phy_ethtool_sset(adapter->phydev, cmd);
-}
-
-static int et131x_get_regs_len(struct net_device *netdev)
-{
-#define ET131X_REGS_LEN 256
- return ET131X_REGS_LEN * sizeof(u32);
-}
-
-static void et131x_get_regs(struct net_device *netdev,
- struct ethtool_regs *regs, void *regs_data)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
- struct address_map __iomem *aregs = adapter->regs;
- u32 *regs_buff = regs_data;
- u32 num = 0;
- u16 tmp;
-
- memset(regs_data, 0, et131x_get_regs_len(netdev));
-
- regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
- adapter->pdev->device;
-
- /* PHY regs */
- et131x_mii_read(adapter, MII_BMCR, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, MII_BMSR, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, MII_PHYSID1, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, MII_PHYSID2, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, MII_ADVERTISE, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, MII_LPA, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, MII_EXPANSION, &tmp);
- regs_buff[num++] = tmp;
- /* Autoneg next page transmit reg */
- et131x_mii_read(adapter, 0x07, &tmp);
- regs_buff[num++] = tmp;
- /* Link partner next page reg */
- et131x_mii_read(adapter, 0x08, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, MII_CTRL1000, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, MII_STAT1000, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, 0x0b, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, 0x0c, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, MII_MMD_CTRL, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, MII_MMD_DATA, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, MII_ESTATUS, &tmp);
- regs_buff[num++] = tmp;
-
- et131x_mii_read(adapter, PHY_INDEX_REG, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, PHY_DATA_REG, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, PHY_LOOPBACK_CONTROL, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, PHY_LOOPBACK_CONTROL + 1, &tmp);
- regs_buff[num++] = tmp;
-
- et131x_mii_read(adapter, PHY_REGISTER_MGMT_CONTROL, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, PHY_CONFIG, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, PHY_PHY_CONTROL, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, PHY_INTERRUPT_MASK, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, PHY_INTERRUPT_STATUS, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, PHY_PHY_STATUS, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, PHY_LED_1, &tmp);
- regs_buff[num++] = tmp;
- et131x_mii_read(adapter, PHY_LED_2, &tmp);
- regs_buff[num++] = tmp;
-
- /* Global regs */
- regs_buff[num++] = readl(&aregs->global.txq_start_addr);
- regs_buff[num++] = readl(&aregs->global.txq_end_addr);
- regs_buff[num++] = readl(&aregs->global.rxq_start_addr);
- regs_buff[num++] = readl(&aregs->global.rxq_end_addr);
- regs_buff[num++] = readl(&aregs->global.pm_csr);
- regs_buff[num++] = adapter->stats.interrupt_status;
- regs_buff[num++] = readl(&aregs->global.int_mask);
- regs_buff[num++] = readl(&aregs->global.int_alias_clr_en);
- regs_buff[num++] = readl(&aregs->global.int_status_alias);
- regs_buff[num++] = readl(&aregs->global.sw_reset);
- regs_buff[num++] = readl(&aregs->global.slv_timer);
- regs_buff[num++] = readl(&aregs->global.msi_config);
- regs_buff[num++] = readl(&aregs->global.loopback);
- regs_buff[num++] = readl(&aregs->global.watchdog_timer);
-
- /* TXDMA regs */
- regs_buff[num++] = readl(&aregs->txdma.csr);
- regs_buff[num++] = readl(&aregs->txdma.pr_base_hi);
- regs_buff[num++] = readl(&aregs->txdma.pr_base_lo);
- regs_buff[num++] = readl(&aregs->txdma.pr_num_des);
- regs_buff[num++] = readl(&aregs->txdma.txq_wr_addr);
- regs_buff[num++] = readl(&aregs->txdma.txq_wr_addr_ext);
- regs_buff[num++] = readl(&aregs->txdma.txq_rd_addr);
- regs_buff[num++] = readl(&aregs->txdma.dma_wb_base_hi);
- regs_buff[num++] = readl(&aregs->txdma.dma_wb_base_lo);
- regs_buff[num++] = readl(&aregs->txdma.service_request);
- regs_buff[num++] = readl(&aregs->txdma.service_complete);
- regs_buff[num++] = readl(&aregs->txdma.cache_rd_index);
- regs_buff[num++] = readl(&aregs->txdma.cache_wr_index);
- regs_buff[num++] = readl(&aregs->txdma.tx_dma_error);
- regs_buff[num++] = readl(&aregs->txdma.desc_abort_cnt);
- regs_buff[num++] = readl(&aregs->txdma.payload_abort_cnt);
- regs_buff[num++] = readl(&aregs->txdma.writeback_abort_cnt);
- regs_buff[num++] = readl(&aregs->txdma.desc_timeout_cnt);
- regs_buff[num++] = readl(&aregs->txdma.payload_timeout_cnt);
- regs_buff[num++] = readl(&aregs->txdma.writeback_timeout_cnt);
- regs_buff[num++] = readl(&aregs->txdma.desc_error_cnt);
- regs_buff[num++] = readl(&aregs->txdma.payload_error_cnt);
- regs_buff[num++] = readl(&aregs->txdma.writeback_error_cnt);
- regs_buff[num++] = readl(&aregs->txdma.dropped_tlp_cnt);
- regs_buff[num++] = readl(&aregs->txdma.new_service_complete);
- regs_buff[num++] = readl(&aregs->txdma.ethernet_packet_cnt);
-
- /* RXDMA regs */
- regs_buff[num++] = readl(&aregs->rxdma.csr);
- regs_buff[num++] = readl(&aregs->rxdma.dma_wb_base_hi);
- regs_buff[num++] = readl(&aregs->rxdma.dma_wb_base_lo);
- regs_buff[num++] = readl(&aregs->rxdma.num_pkt_done);
- regs_buff[num++] = readl(&aregs->rxdma.max_pkt_time);
- regs_buff[num++] = readl(&aregs->rxdma.rxq_rd_addr);
- regs_buff[num++] = readl(&aregs->rxdma.rxq_rd_addr_ext);
- regs_buff[num++] = readl(&aregs->rxdma.rxq_wr_addr);
- regs_buff[num++] = readl(&aregs->rxdma.psr_base_hi);
- regs_buff[num++] = readl(&aregs->rxdma.psr_base_lo);
- regs_buff[num++] = readl(&aregs->rxdma.psr_num_des);
- regs_buff[num++] = readl(&aregs->rxdma.psr_avail_offset);
- regs_buff[num++] = readl(&aregs->rxdma.psr_full_offset);
- regs_buff[num++] = readl(&aregs->rxdma.psr_access_index);
- regs_buff[num++] = readl(&aregs->rxdma.psr_min_des);
- regs_buff[num++] = readl(&aregs->rxdma.fbr0_base_lo);
- regs_buff[num++] = readl(&aregs->rxdma.fbr0_base_hi);
- regs_buff[num++] = readl(&aregs->rxdma.fbr0_num_des);
- regs_buff[num++] = readl(&aregs->rxdma.fbr0_avail_offset);
- regs_buff[num++] = readl(&aregs->rxdma.fbr0_full_offset);
- regs_buff[num++] = readl(&aregs->rxdma.fbr0_rd_index);
- regs_buff[num++] = readl(&aregs->rxdma.fbr0_min_des);
- regs_buff[num++] = readl(&aregs->rxdma.fbr1_base_lo);
- regs_buff[num++] = readl(&aregs->rxdma.fbr1_base_hi);
- regs_buff[num++] = readl(&aregs->rxdma.fbr1_num_des);
- regs_buff[num++] = readl(&aregs->rxdma.fbr1_avail_offset);
- regs_buff[num++] = readl(&aregs->rxdma.fbr1_full_offset);
- regs_buff[num++] = readl(&aregs->rxdma.fbr1_rd_index);
- regs_buff[num++] = readl(&aregs->rxdma.fbr1_min_des);
-}
-
-static void et131x_get_drvinfo(struct net_device *netdev,
- struct ethtool_drvinfo *info)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
-
- strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver));
- strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
- strlcpy(info->bus_info, pci_name(adapter->pdev),
- sizeof(info->bus_info));
-}
-
-static struct ethtool_ops et131x_ethtool_ops = {
- .get_settings = et131x_get_settings,
- .set_settings = et131x_set_settings,
- .get_drvinfo = et131x_get_drvinfo,
- .get_regs_len = et131x_get_regs_len,
- .get_regs = et131x_get_regs,
- .get_link = ethtool_op_get_link,
-};
-
-/* et131x_hwaddr_init - set up the MAC Address on the ET1310 */
-static void et131x_hwaddr_init(struct et131x_adapter *adapter)
-{
- /* If have our default mac from init and no mac address from
- * EEPROM then we need to generate the last octet and set it on the
- * device
- */
- if (is_zero_ether_addr(adapter->rom_addr)) {
- /* We need to randomly generate the last octet so we
- * decrease our chances of setting the mac address to
- * same as another one of our cards in the system
- */
- get_random_bytes(&adapter->addr[5], 1);
- /* We have the default value in the register we are
- * working with so we need to copy the current
- * address into the permanent address
- */
- memcpy(adapter->rom_addr,
- adapter->addr, ETH_ALEN);
- } else {
- /* We do not have an override address, so set the
- * current address to the permanent address and add
- * it to the device
- */
- memcpy(adapter->addr,
- adapter->rom_addr, ETH_ALEN);
- }
-}
-
-/* et131x_pci_init - initial PCI setup
- *
- * Perform the initial setup of PCI registers and if possible initialise
- * the MAC address. At this point the I/O registers have yet to be mapped
- */
-static int et131x_pci_init(struct et131x_adapter *adapter,
- struct pci_dev *pdev)
-{
- u16 max_payload;
- int i, rc;
-
- rc = et131x_init_eeprom(adapter);
- if (rc < 0)
- goto out;
-
- if (!pci_is_pcie(pdev)) {
- dev_err(&pdev->dev, "Missing PCIe capabilities\n");
- goto err_out;
- }
-
- /* Let's set up the PORT LOGIC Register. */
-
- /* Program the Ack/Nak latency and replay timers */
- max_payload = pdev->pcie_mpss;
-
- if (max_payload < 2) {
- static const u16 acknak[2] = { 0x76, 0xD0 };
- static const u16 replay[2] = { 0x1E0, 0x2ED };
-
- if (pci_write_config_word(pdev, ET1310_PCI_ACK_NACK,
- acknak[max_payload])) {
- dev_err(&pdev->dev,
- "Could not write PCI config space for ACK/NAK\n");
- goto err_out;
- }
- if (pci_write_config_word(pdev, ET1310_PCI_REPLAY,
- replay[max_payload])) {
- dev_err(&pdev->dev,
- "Could not write PCI config space for Replay Timer\n");
- goto err_out;
- }
- }
-
- /* l0s and l1 latency timers. We are using default values.
- * Representing 001 for L0s and 010 for L1
- */
- if (pci_write_config_byte(pdev, ET1310_PCI_L0L1LATENCY, 0x11)) {
- dev_err(&pdev->dev,
- "Could not write PCI config space for Latency Timers\n");
- goto err_out;
- }
-
- /* Change the max read size to 2k */
- if (pcie_set_readrq(pdev, 2048)) {
- dev_err(&pdev->dev,
- "Couldn't change PCI config space for Max read size\n");
- goto err_out;
- }
-
- /* Get MAC address from config space if an eeprom exists, otherwise
- * the MAC address there will not be valid
- */
- if (!adapter->has_eeprom) {
- et131x_hwaddr_init(adapter);
- return 0;
- }
-
- for (i = 0; i < ETH_ALEN; i++) {
- if (pci_read_config_byte(pdev, ET1310_PCI_MAC_ADDRESS + i,
- adapter->rom_addr + i)) {
- dev_err(&pdev->dev, "Could not read PCI config space for MAC address\n");
- goto err_out;
- }
- }
- ether_addr_copy(adapter->addr, adapter->rom_addr);
-out:
- return rc;
-err_out:
- rc = -EIO;
- goto out;
-}
-
-/* et131x_error_timer_handler
- * @data: timer-specific variable; here a pointer to our adapter structure
- *
- * The routine called when the error timer expires, to track the number of
- * recurring errors.
- */
-static void et131x_error_timer_handler(unsigned long data)
-{
- struct et131x_adapter *adapter = (struct et131x_adapter *)data;
- struct phy_device *phydev = adapter->phydev;
-
- if (et1310_in_phy_coma(adapter)) {
- /* Bring the device immediately out of coma, to
- * prevent it from sleeping indefinitely, this
- * mechanism could be improved!
- */
- et1310_disable_phy_coma(adapter);
- adapter->boot_coma = 20;
- } else {
- et1310_update_macstat_host_counters(adapter);
- }
-
- if (!phydev->link && adapter->boot_coma < 11)
- adapter->boot_coma++;
-
- if (adapter->boot_coma == 10) {
- if (!phydev->link) {
- if (!et1310_in_phy_coma(adapter)) {
- /* NOTE - This was originally a 'sync with
- * interrupt'. How to do that under Linux?
- */
- et131x_enable_interrupts(adapter);
- et1310_enable_phy_coma(adapter);
- }
- }
- }
-
- /* This is a periodic timer, so reschedule */
- mod_timer(&adapter->error_timer, jiffies + TX_ERROR_PERIOD * HZ / 1000);
-}
-
-/* et131x_adapter_memory_free - Free all memory allocated for use by Tx & Rx */
-static void et131x_adapter_memory_free(struct et131x_adapter *adapter)
-{
- et131x_tx_dma_memory_free(adapter);
- et131x_rx_dma_memory_free(adapter);
-}
-
-/* et131x_adapter_memory_alloc
- * Allocate all the memory blocks for send, receive and others.
- */
-static int et131x_adapter_memory_alloc(struct et131x_adapter *adapter)
-{
- int status;
-
- /* Allocate memory for the Tx Ring */
- status = et131x_tx_dma_memory_alloc(adapter);
- if (status) {
- dev_err(&adapter->pdev->dev,
- "et131x_tx_dma_memory_alloc FAILED\n");
- et131x_tx_dma_memory_free(adapter);
- return status;
- }
- /* Receive buffer memory allocation */
- status = et131x_rx_dma_memory_alloc(adapter);
- if (status) {
- dev_err(&adapter->pdev->dev,
- "et131x_rx_dma_memory_alloc FAILED\n");
- et131x_adapter_memory_free(adapter);
- return status;
- }
-
- /* Init receive data structures */
- status = et131x_init_recv(adapter);
- if (status) {
- dev_err(&adapter->pdev->dev, "et131x_init_recv FAILED\n");
- et131x_adapter_memory_free(adapter);
- }
- return status;
-}
-
-static void et131x_adjust_link(struct net_device *netdev)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
- struct phy_device *phydev = adapter->phydev;
-
- if (!phydev)
- return;
- if (phydev->link == adapter->link)
- return;
-
- /* Check to see if we are in coma mode and if
- * so, disable it because we will not be able
- * to read PHY values until we are out.
- */
- if (et1310_in_phy_coma(adapter))
- et1310_disable_phy_coma(adapter);
-
- adapter->link = phydev->link;
- phy_print_status(phydev);
-
- if (phydev->link) {
- adapter->boot_coma = 20;
- if (phydev->speed == SPEED_10) {
- u16 register18;
-
- et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG,
- ®ister18);
- et131x_mii_write(adapter, phydev->addr,
- PHY_MPHY_CONTROL_REG, register18 | 0x4);
- et131x_mii_write(adapter, phydev->addr, PHY_INDEX_REG,
- register18 | 0x8402);
- et131x_mii_write(adapter, phydev->addr, PHY_DATA_REG,
- register18 | 511);
- et131x_mii_write(adapter, phydev->addr,
- PHY_MPHY_CONTROL_REG, register18);
- }
-
- et1310_config_flow_control(adapter);
-
- if (phydev->speed == SPEED_1000 &&
- adapter->registry_jumbo_packet > 2048) {
- u16 reg;
-
- et131x_mii_read(adapter, PHY_CONFIG, ®);
- reg &= ~ET_PHY_CONFIG_TX_FIFO_DEPTH;
- reg |= ET_PHY_CONFIG_FIFO_DEPTH_32;
- et131x_mii_write(adapter, phydev->addr, PHY_CONFIG,
- reg);
- }
-
- et131x_set_rx_dma_timer(adapter);
- et1310_config_mac_regs2(adapter);
- } else {
- adapter->boot_coma = 0;
-
- if (phydev->speed == SPEED_10) {
- u16 register18;
-
- et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG,
- ®ister18);
- et131x_mii_write(adapter, phydev->addr,
- PHY_MPHY_CONTROL_REG, register18 | 0x4);
- et131x_mii_write(adapter, phydev->addr,
- PHY_INDEX_REG, register18 | 0x8402);
- et131x_mii_write(adapter, phydev->addr,
- PHY_DATA_REG, register18 | 511);
- et131x_mii_write(adapter, phydev->addr,
- PHY_MPHY_CONTROL_REG, register18);
- }
-
- /* Free the packets being actively sent & stopped */
- et131x_free_busy_send_packets(adapter);
-
- /* Re-initialize the send structures */
- et131x_init_send(adapter);
-
- /* Bring the device back to the state it was during
- * init prior to autonegotiation being complete. This
- * way, when we get the auto-neg complete interrupt,
- * we can complete init by calling config_mac_regs2.
- */
- et131x_soft_reset(adapter);
-
- /* Setup ET1310 as per the documentation */
- et131x_adapter_setup(adapter);
-
- /* perform reset of tx/rx */
- et131x_disable_txrx(netdev);
- et131x_enable_txrx(netdev);
- }
-}
-
-static int et131x_mii_probe(struct net_device *netdev)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
- struct phy_device *phydev = NULL;
-
- phydev = phy_find_first(adapter->mii_bus);
- if (!phydev) {
- dev_err(&adapter->pdev->dev, "no PHY found\n");
- return -ENODEV;
- }
-
- phydev = phy_connect(netdev, dev_name(&phydev->dev),
- &et131x_adjust_link, PHY_INTERFACE_MODE_MII);
-
- if (IS_ERR(phydev)) {
- dev_err(&adapter->pdev->dev, "Could not attach to PHY\n");
- return PTR_ERR(phydev);
- }
-
- phydev->supported &= (SUPPORTED_10baseT_Half |
- SUPPORTED_10baseT_Full |
- SUPPORTED_100baseT_Half |
- SUPPORTED_100baseT_Full |
- SUPPORTED_Autoneg |
- SUPPORTED_MII |
- SUPPORTED_TP);
-
- if (adapter->pdev->device != ET131X_PCI_DEVICE_ID_FAST)
- phydev->supported |= SUPPORTED_1000baseT_Half |
- SUPPORTED_1000baseT_Full;
-
- phydev->advertising = phydev->supported;
- phydev->autoneg = AUTONEG_ENABLE;
- adapter->phydev = phydev;
-
- dev_info(&adapter->pdev->dev,
- "attached PHY driver [%s] (mii_bus:phy_addr=%s)\n",
- phydev->drv->name, dev_name(&phydev->dev));
-
- return 0;
-}
-
-/* et131x_adapter_init
- *
- * Initialize the data structures for the et131x_adapter object and link
- * them together with the platform provided device structures.
- */
-static struct et131x_adapter *et131x_adapter_init(struct net_device *netdev,
- struct pci_dev *pdev)
-{
- static const u8 default_mac[] = { 0x00, 0x05, 0x3d, 0x00, 0x02, 0x00 };
-
- struct et131x_adapter *adapter;
-
- /* Allocate private adapter struct and copy in relevant information */
- adapter = netdev_priv(netdev);
- adapter->pdev = pci_dev_get(pdev);
- adapter->netdev = netdev;
-
- /* Initialize spinlocks here */
- spin_lock_init(&adapter->tcb_send_qlock);
- spin_lock_init(&adapter->tcb_ready_qlock);
- spin_lock_init(&adapter->rcv_lock);
-
- adapter->registry_jumbo_packet = 1514; /* 1514-9216 */
-
- /* Set the MAC address to a default */
- ether_addr_copy(adapter->addr, default_mac);
-
- return adapter;
-}
-
-/* et131x_pci_remove
- *
- * Registered in the pci_driver structure, this function is called when the
- * PCI subsystem detects that a PCI device which matches the information
- * contained in the pci_device_id table has been removed.
- */
-static void et131x_pci_remove(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct et131x_adapter *adapter = netdev_priv(netdev);
-
- unregister_netdev(netdev);
- netif_napi_del(&adapter->napi);
- phy_disconnect(adapter->phydev);
- mdiobus_unregister(adapter->mii_bus);
- kfree(adapter->mii_bus->irq);
- mdiobus_free(adapter->mii_bus);
-
- et131x_adapter_memory_free(adapter);
- iounmap(adapter->regs);
- pci_dev_put(pdev);
-
- free_netdev(netdev);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
-}
-
-/* et131x_up - Bring up a device for use. */
-static void et131x_up(struct net_device *netdev)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
-
- et131x_enable_txrx(netdev);
- phy_start(adapter->phydev);
-}
-
-/* et131x_down - Bring down the device */
-static void et131x_down(struct net_device *netdev)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
-
- /* Save the timestamp for the TX watchdog, prevent a timeout */
- netdev->trans_start = jiffies;
-
- phy_stop(adapter->phydev);
- et131x_disable_txrx(netdev);
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int et131x_suspend(struct device *dev)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct net_device *netdev = pci_get_drvdata(pdev);
-
- if (netif_running(netdev)) {
- netif_device_detach(netdev);
- et131x_down(netdev);
- pci_save_state(pdev);
- }
-
- return 0;
-}
-
-static int et131x_resume(struct device *dev)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct net_device *netdev = pci_get_drvdata(pdev);
-
- if (netif_running(netdev)) {
- pci_restore_state(pdev);
- et131x_up(netdev);
- netif_device_attach(netdev);
- }
-
- return 0;
-}
-
-static SIMPLE_DEV_PM_OPS(et131x_pm_ops, et131x_suspend, et131x_resume);
-#define ET131X_PM_OPS (&et131x_pm_ops)
-#else
-#define ET131X_PM_OPS NULL
-#endif
-
-/* et131x_isr - The Interrupt Service Routine for the driver.
- * @irq: the IRQ on which the interrupt was received.
- * @dev_id: device-specific info (here a pointer to a net_device struct)
- *
- * Returns a value indicating if the interrupt was handled.
- */
-static irqreturn_t et131x_isr(int irq, void *dev_id)
-{
- bool handled = true;
- bool enable_interrupts = true;
- struct net_device *netdev = (struct net_device *)dev_id;
- struct et131x_adapter *adapter = netdev_priv(netdev);
- struct address_map __iomem *iomem = adapter->regs;
- struct rx_ring *rx_ring = &adapter->rx_ring;
- struct tx_ring *tx_ring = &adapter->tx_ring;
- u32 status;
-
- if (!netif_device_present(netdev)) {
- handled = false;
- enable_interrupts = false;
- goto out;
- }
-
- /* If the adapter is in low power state, then it should not
- * recognize any interrupt
- */
-
- /* Disable Device Interrupts */
- et131x_disable_interrupts(adapter);
-
- /* Get a copy of the value in the interrupt status register
- * so we can process the interrupting section
- */
- status = readl(&adapter->regs->global.int_status);
-
- if (adapter->flow == FLOW_TXONLY || adapter->flow == FLOW_BOTH)
- status &= ~INT_MASK_ENABLE;
- else
- status &= ~INT_MASK_ENABLE_NO_FLOW;
-
- /* Make sure this is our interrupt */
- if (!status) {
- handled = false;
- et131x_enable_interrupts(adapter);
- goto out;
- }
-
- /* This is our interrupt, so process accordingly */
- if (status & ET_INTR_WATCHDOG) {
- struct tcb *tcb = tx_ring->send_head;
-
- if (tcb)
- if (++tcb->stale > 1)
- status |= ET_INTR_TXDMA_ISR;
-
- if (rx_ring->unfinished_receives)
- status |= ET_INTR_RXDMA_XFR_DONE;
- else if (tcb == NULL)
- writel(0, &adapter->regs->global.watchdog_timer);
-
- status &= ~ET_INTR_WATCHDOG;
- }
-
- if (status & (ET_INTR_RXDMA_XFR_DONE | ET_INTR_TXDMA_ISR)) {
- enable_interrupts = false;
- napi_schedule(&adapter->napi);
- }
-
- status &= ~(ET_INTR_TXDMA_ISR | ET_INTR_RXDMA_XFR_DONE);
-
- if (!status)
- goto out;
-
- /* Handle the TXDMA Error interrupt */
- if (status & ET_INTR_TXDMA_ERR) {
- /* Following read also clears the register (COR) */
- u32 txdma_err = readl(&iomem->txdma.tx_dma_error);
-
- dev_warn(&adapter->pdev->dev,
- "TXDMA_ERR interrupt, error = %d\n",
- txdma_err);
- }
-
- /* Handle Free Buffer Ring 0 and 1 Low interrupt */
- if (status & (ET_INTR_RXDMA_FB_R0_LOW | ET_INTR_RXDMA_FB_R1_LOW)) {
- /* This indicates the number of unused buffers in RXDMA free
- * buffer ring 0 is <= the limit you programmed. Free buffer
- * resources need to be returned. Free buffers are consumed as
- * packets are passed from the network to the host. The host
- * becomes aware of the packets from the contents of the packet
- * status ring. This ring is queried when the packet done
- * interrupt occurs. Packets are then passed to the OS. When
- * the OS is done with the packets the resources can be
- * returned to the ET1310 for re-use. This interrupt is one
- * method of returning resources.
- */
-
- /* If the user has flow control on, then we will
- * send a pause packet, otherwise just exit
- */
- if (adapter->flow == FLOW_TXONLY || adapter->flow == FLOW_BOTH) {
- u32 pm_csr;
-
- /* Tell the device to send a pause packet via the back
- * pressure register (bp req and bp xon/xoff)
- */
- pm_csr = readl(&iomem->global.pm_csr);
- if (!et1310_in_phy_coma(adapter))
- writel(3, &iomem->txmac.bp_ctrl);
- }
- }
-
- /* Handle Packet Status Ring Low Interrupt */
- if (status & ET_INTR_RXDMA_STAT_LOW) {
- /* Same idea as with the two Free Buffer Rings. Packets going
- * from the network to the host each consume a free buffer
- * resource and a packet status resource. These resources are
- * passed to the OS. When the OS is done with the resources,
- * they need to be returned to the ET1310. This is one method
- * of returning the resources.
- */
- }
-
- /* Handle RXDMA Error Interrupt */
- if (status & ET_INTR_RXDMA_ERR) {
- /* The rxdma_error interrupt is sent when a time-out on a
- * request issued by the JAGCore has occurred or a completion is
- * returned with an un-successful status. In both cases the
- * request is considered complete. The JAGCore will
- * automatically re-try the request in question. Normally
- * information on events like these are sent to the host using
- * the "Advanced Error Reporting" capability. This interrupt is
- * another way of getting similar information. The only thing
- * required is to clear the interrupt by reading the ISR in the
- * global resources. The JAGCore will do a re-try on the
- * request. Normally you should never see this interrupt. If
- * you start to see this interrupt occurring frequently then
- * something bad has occurred. A reset might be the thing to do.
- */
- /* TRAP();*/
-
- dev_warn(&adapter->pdev->dev,
- "RxDMA_ERR interrupt, error %x\n",
- readl(&iomem->txmac.tx_test));
- }
-
- /* Handle the Wake on LAN Event */
- if (status & ET_INTR_WOL) {
- /* This is a secondary interrupt for wake on LAN. The driver
- * should never see this, if it does, something serious is
- * wrong. We will TRAP the message when we are in DBG mode,
- * otherwise we will ignore it.
- */
- dev_err(&adapter->pdev->dev, "WAKE_ON_LAN interrupt\n");
- }
-
- /* Let's move on to the TxMac */
- if (status & ET_INTR_TXMAC) {
- u32 err = readl(&iomem->txmac.err);
-
- /* When any of the errors occur and TXMAC generates an
- * interrupt to report these errors, it usually means that
- * TXMAC has detected an error in the data stream retrieved
- * from the on-chip Tx Q. All of these errors are catastrophic
- * and TXMAC won't be able to recover data when these errors
- * occur. In a nutshell, the whole Tx path will have to be reset
- * and re-configured afterwards.
- */
- dev_warn(&adapter->pdev->dev,
- "TXMAC interrupt, error 0x%08x\n",
- err);
-
- /* If we are debugging, we want to see this error, otherwise we
- * just want the device to be reset and continue
- */
- }
-
- /* Handle RXMAC Interrupt */
- if (status & ET_INTR_RXMAC) {
- /* These interrupts are catastrophic to the device, what we need
- * to do is disable the interrupts and set the flag to cause us
- * to reset so we can solve this issue.
- */
- /* MP_SET_FLAG( adapter, FMP_ADAPTER_HARDWARE_ERROR); */
-
- dev_warn(&adapter->pdev->dev,
- "RXMAC interrupt, error 0x%08x. Requesting reset\n",
- readl(&iomem->rxmac.err_reg));
-
- dev_warn(&adapter->pdev->dev,
- "Enable 0x%08x, Diag 0x%08x\n",
- readl(&iomem->rxmac.ctrl),
- readl(&iomem->rxmac.rxq_diag));
-
- /* If we are debugging, we want to see this error, otherwise we
- * just want the device to be reset and continue
- */
- }
-
- /* Handle MAC_STAT Interrupt */
- if (status & ET_INTR_MAC_STAT) {
- /* This means at least one of the un-masked counters in the
- * MAC_STAT block has rolled over. Use this to maintain the top,
- * software managed bits of the counter(s).
- */
- et1310_handle_macstat_interrupt(adapter);
- }
-
- /* Handle SLV Timeout Interrupt */
- if (status & ET_INTR_SLV_TIMEOUT) {
- /* This means a timeout has occurred on a read or write request
- * to one of the JAGCore registers. The Global Resources block
- * has terminated the request and on a read request, returned a
- * "fake" value. The most likely reasons are: Bad Address or the
- * addressed module is in a power-down state and can't respond.
- */
- }
-
-out:
- if (enable_interrupts)
- et131x_enable_interrupts(adapter);
-
- return IRQ_RETVAL(handled);
-}
-
-static int et131x_poll(struct napi_struct *napi, int budget)
-{
- struct et131x_adapter *adapter =
- container_of(napi, struct et131x_adapter, napi);
- int work_done = et131x_handle_recv_pkts(adapter, budget);
-
- et131x_handle_send_pkts(adapter);
-
- if (work_done < budget) {
- napi_complete(&adapter->napi);
- et131x_enable_interrupts(adapter);
- }
-
- return work_done;
-}
-
-/* et131x_stats - Return the current device statistics */
-static struct net_device_stats *et131x_stats(struct net_device *netdev)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
- struct net_device_stats *stats = &adapter->netdev->stats;
- struct ce_stats *devstat = &adapter->stats;
-
- stats->rx_errors = devstat->rx_length_errs +
- devstat->rx_align_errs +
- devstat->rx_crc_errs +
- devstat->rx_code_violations +
- devstat->rx_other_errs;
- stats->tx_errors = devstat->tx_max_pkt_errs;
- stats->multicast = devstat->multicast_pkts_rcvd;
- stats->collisions = devstat->tx_collisions;
-
- stats->rx_length_errors = devstat->rx_length_errs;
- stats->rx_over_errors = devstat->rx_overflows;
- stats->rx_crc_errors = devstat->rx_crc_errs;
- stats->rx_dropped = devstat->rcvd_pkts_dropped;
-
- /* NOTE: Not used, can't find analogous statistics */
- /* stats->rx_frame_errors = devstat->; */
- /* stats->rx_fifo_errors = devstat->; */
- /* stats->rx_missed_errors = devstat->; */
-
- /* stats->tx_aborted_errors = devstat->; */
- /* stats->tx_carrier_errors = devstat->; */
- /* stats->tx_fifo_errors = devstat->; */
- /* stats->tx_heartbeat_errors = devstat->; */
- /* stats->tx_window_errors = devstat->; */
- return stats;
-}
-
-/* et131x_open - Open the device for use. */
-static int et131x_open(struct net_device *netdev)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
- struct pci_dev *pdev = adapter->pdev;
- unsigned int irq = pdev->irq;
- int result;
-
- /* Start the timer to track NIC errors */
- init_timer(&adapter->error_timer);
- adapter->error_timer.expires = jiffies + TX_ERROR_PERIOD * HZ / 1000;
- adapter->error_timer.function = et131x_error_timer_handler;
- adapter->error_timer.data = (unsigned long)adapter;
- add_timer(&adapter->error_timer);
-
- result = request_irq(irq, et131x_isr,
- IRQF_SHARED, netdev->name, netdev);
- if (result) {
- dev_err(&pdev->dev, "could not register IRQ %d\n", irq);
- return result;
- }
-
- adapter->flags |= FMP_ADAPTER_INTERRUPT_IN_USE;
-
- napi_enable(&adapter->napi);
-
- et131x_up(netdev);
-
- return result;
-}
-
-/* et131x_close - Close the device */
-static int et131x_close(struct net_device *netdev)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
-
- et131x_down(netdev);
- napi_disable(&adapter->napi);
-
- adapter->flags &= ~FMP_ADAPTER_INTERRUPT_IN_USE;
- free_irq(adapter->pdev->irq, netdev);
-
- /* Stop the error timer */
- return del_timer_sync(&adapter->error_timer);
-}
-
-/* et131x_ioctl - The I/O Control handler for the driver
- * @netdev: device on which the control request is being made
- * @reqbuf: a pointer to the IOCTL request buffer
- * @cmd: the IOCTL command code
- */
-static int et131x_ioctl(struct net_device *netdev, struct ifreq *reqbuf,
- int cmd)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
-
- if (!adapter->phydev)
- return -EINVAL;
-
- return phy_mii_ioctl(adapter->phydev, reqbuf, cmd);
-}
-
-/* et131x_set_packet_filter - Configures the Rx Packet filtering on the device
- * @adapter: pointer to our private adapter structure
- *
- * FIXME: lot of dups with MAC code
- */
-static int et131x_set_packet_filter(struct et131x_adapter *adapter)
-{
- int filter = adapter->packet_filter;
- u32 ctrl;
- u32 pf_ctrl;
-
- ctrl = readl(&adapter->regs->rxmac.ctrl);
- pf_ctrl = readl(&adapter->regs->rxmac.pf_ctrl);
-
- /* Default to disabled packet filtering. Enable it in the individual
- * case statements that require the device to filter something
- */
- ctrl |= 0x04;
-
- /* Set us to be in promiscuous mode so we receive everything, this
- * is also true when we get a packet filter of 0
- */
- if ((filter & ET131X_PACKET_TYPE_PROMISCUOUS) || filter == 0)
- pf_ctrl &= ~7; /* Clear filter bits */
- else {
- /* Set us up with Multicast packet filtering. Three cases are
- * possible - (1) we have a multi-cast list, (2) we receive ALL
- * multicast entries or (3) we receive none.
- */
- if (filter & ET131X_PACKET_TYPE_ALL_MULTICAST)
- pf_ctrl &= ~2; /* Multicast filter bit */
- else {
- et1310_setup_device_for_multicast(adapter);
- pf_ctrl |= 2;
- ctrl &= ~0x04;
- }
-
- /* Set us up with Unicast packet filtering */
- if (filter & ET131X_PACKET_TYPE_DIRECTED) {
- et1310_setup_device_for_unicast(adapter);
- pf_ctrl |= 4;
- ctrl &= ~0x04;
- }
-
- /* Set us up with Broadcast packet filtering */
- if (filter & ET131X_PACKET_TYPE_BROADCAST) {
- pf_ctrl |= 1; /* Broadcast filter bit */
- ctrl &= ~0x04;
- } else {
- pf_ctrl &= ~1;
- }
-
- /* Setup the receive mac configuration registers - Packet
- * Filter control + the enable / disable for packet filter
- * in the control reg.
- */
- writel(pf_ctrl, &adapter->regs->rxmac.pf_ctrl);
- writel(ctrl, &adapter->regs->rxmac.ctrl);
- }
- return 0;
-}
-
-/* et131x_multicast - The handler to configure multicasting on the interface */
-static void et131x_multicast(struct net_device *netdev)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
- int packet_filter;
- struct netdev_hw_addr *ha;
- int i;
-
- /* Before we modify the platform-independent filter flags, store them
- * locally. This allows us to determine if anything's changed and if
- * we even need to bother the hardware
- */
- packet_filter = adapter->packet_filter;
-
- /* Clear the 'multicast' flag locally; because we only have a single
- * flag to check multicast, and multiple multicast addresses can be
- * set, this is the easiest way to determine if more than one
- * multicast address is being set.
- */
- packet_filter &= ~ET131X_PACKET_TYPE_MULTICAST;
-
- /* Check the net_device flags and set the device independent flags
- * accordingly
- */
- if (netdev->flags & IFF_PROMISC)
- adapter->packet_filter |= ET131X_PACKET_TYPE_PROMISCUOUS;
- else
- adapter->packet_filter &= ~ET131X_PACKET_TYPE_PROMISCUOUS;
-
- if ((netdev->flags & IFF_ALLMULTI) ||
- (netdev_mc_count(netdev) > NIC_MAX_MCAST_LIST))
- adapter->packet_filter |= ET131X_PACKET_TYPE_ALL_MULTICAST;
-
- if (netdev_mc_count(netdev) < 1) {
- adapter->packet_filter &= ~ET131X_PACKET_TYPE_ALL_MULTICAST;
- adapter->packet_filter &= ~ET131X_PACKET_TYPE_MULTICAST;
- } else {
- adapter->packet_filter |= ET131X_PACKET_TYPE_MULTICAST;
- }
-
- /* Set values in the private adapter struct */
- i = 0;
- netdev_for_each_mc_addr(ha, netdev) {
- if (i == NIC_MAX_MCAST_LIST)
- break;
- memcpy(adapter->multicast_list[i++], ha->addr, ETH_ALEN);
- }
- adapter->multicast_addr_count = i;
-
- /* Are the new flags different from the previous ones? If not, then no
- * action is required
- *
- * NOTE - This block will always update the multicast_list with the
- * hardware, even if the addresses aren't the same.
- */
- if (packet_filter != adapter->packet_filter)
- et131x_set_packet_filter(adapter);
-}
-
-/* et131x_tx - The handler to tx a packet on the device */
-static netdev_tx_t et131x_tx(struct sk_buff *skb, struct net_device *netdev)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
- struct tx_ring *tx_ring = &adapter->tx_ring;
-
- /* stop the queue if it's getting full */
- if (tx_ring->used >= NUM_TCB - 1 && !netif_queue_stopped(netdev))
- netif_stop_queue(netdev);
-
- /* Save the timestamp for the TX timeout watchdog */
- netdev->trans_start = jiffies;
-
- /* TCB is not available */
- if (tx_ring->used >= NUM_TCB)
- goto drop_err;
-
- if ((adapter->flags & FMP_ADAPTER_FAIL_SEND_MASK) ||
- !netif_carrier_ok(netdev))
- goto drop_err;
-
- if (send_packet(skb, adapter))
- goto drop_err;
-
- return NETDEV_TX_OK;
-
-drop_err:
- dev_kfree_skb_any(skb);
- adapter->netdev->stats.tx_dropped++;
- return NETDEV_TX_OK;
-}
-
-/* et131x_tx_timeout - Timeout handler
- *
- * The handler called when a Tx request times out. The timeout period is
- * specified by the 'tx_timeo" element in the net_device structure (see
- * et131x_alloc_device() to see how this value is set).
- */
-static void et131x_tx_timeout(struct net_device *netdev)
-{
- struct et131x_adapter *adapter = netdev_priv(netdev);
- struct tx_ring *tx_ring = &adapter->tx_ring;
- struct tcb *tcb;
- unsigned long flags;
-
- /* If the device is closed, ignore the timeout */
- if (~(adapter->flags & FMP_ADAPTER_INTERRUPT_IN_USE))
- return;
-
- /* Any nonrecoverable hardware error?
- * Checks adapter->flags for any failure in phy reading
- */
- if (adapter->flags & FMP_ADAPTER_NON_RECOVER_ERROR)
- return;
-
- /* Hardware failure? */
- if (adapter->flags & FMP_ADAPTER_HARDWARE_ERROR) {
- dev_err(&adapter->pdev->dev, "hardware error - reset\n");
- return;
- }
-
- /* Is send stuck? */
- spin_lock_irqsave(&adapter->tcb_send_qlock, flags);
- tcb = tx_ring->send_head;
- spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
-
- if (tcb) {
- tcb->count++;
-
- if (tcb->count > NIC_SEND_HANG_THRESHOLD) {
- dev_warn(&adapter->pdev->dev,
- "Send stuck - reset. tcb->WrIndex %x\n",
- tcb->index);
-
- adapter->netdev->stats.tx_errors++;
-
- /* perform reset of tx/rx */
- et131x_disable_txrx(netdev);
- et131x_enable_txrx(netdev);
- }
- }
-}
-
-/* et131x_change_mtu - The handler called to change the MTU for the device */
-static int et131x_change_mtu(struct net_device *netdev, int new_mtu)
-{
- int result = 0;
- struct et131x_adapter *adapter = netdev_priv(netdev);
-
- /* Make sure the requested MTU is valid */
- if (new_mtu < 64 || new_mtu > 9216)
- return -EINVAL;
-
- et131x_disable_txrx(netdev);
-
- /* Set the new MTU */
- netdev->mtu = new_mtu;
-
- /* Free Rx DMA memory */
- et131x_adapter_memory_free(adapter);
-
- /* Set the config parameter for Jumbo Packet support */
- adapter->registry_jumbo_packet = new_mtu + 14;
- et131x_soft_reset(adapter);
-
- /* Alloc and init Rx DMA memory */
- result = et131x_adapter_memory_alloc(adapter);
- if (result != 0) {
- dev_warn(&adapter->pdev->dev,
- "Change MTU failed; couldn't re-alloc DMA memory\n");
- return result;
- }
-
- et131x_init_send(adapter);
-
- et131x_hwaddr_init(adapter);
- memcpy(netdev->dev_addr, adapter->addr, ETH_ALEN);
-
- /* Init the device with the new settings */
- et131x_adapter_setup(adapter);
- et131x_enable_txrx(netdev);
-
- return result;
-}
-
-static const struct net_device_ops et131x_netdev_ops = {
- .ndo_open = et131x_open,
- .ndo_stop = et131x_close,
- .ndo_start_xmit = et131x_tx,
- .ndo_set_rx_mode = et131x_multicast,
- .ndo_tx_timeout = et131x_tx_timeout,
- .ndo_change_mtu = et131x_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_get_stats = et131x_stats,
- .ndo_do_ioctl = et131x_ioctl,
-};
-
-/* et131x_pci_setup - Perform device initialization
- * @pdev: a pointer to the device's pci_dev structure
- * @ent: this device's entry in the pci_device_id table
- *
- * Registered in the pci_driver structure, this function is called when the
- * PCI subsystem finds a new PCI device which matches the information
- * contained in the pci_device_id table. This routine is the equivalent to
- * a device insertion routine.
- */
-static int et131x_pci_setup(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- struct net_device *netdev;
- struct et131x_adapter *adapter;
- int rc;
- int ii;
-
- rc = pci_enable_device(pdev);
- if (rc < 0) {
- dev_err(&pdev->dev, "pci_enable_device() failed\n");
- goto out;
- }
-
- /* Perform some basic PCI checks */
- if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
- dev_err(&pdev->dev, "Can't find PCI device's base address\n");
- rc = -ENODEV;
- goto err_disable;
- }
-
- rc = pci_request_regions(pdev, DRIVER_NAME);
- if (rc < 0) {
- dev_err(&pdev->dev, "Can't get PCI resources\n");
- goto err_disable;
- }
-
- pci_set_master(pdev);
-
- /* Check the DMA addressing support of this device */
- if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) &&
- dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) {
- dev_err(&pdev->dev, "No usable DMA addressing method\n");
- rc = -EIO;
- goto err_release_res;
- }
-
- /* Allocate netdev and private adapter structs */
- netdev = alloc_etherdev(sizeof(struct et131x_adapter));
- if (!netdev) {
- dev_err(&pdev->dev, "Couldn't alloc netdev struct\n");
- rc = -ENOMEM;
- goto err_release_res;
- }
-
- netdev->watchdog_timeo = ET131X_TX_TIMEOUT;
- netdev->netdev_ops = &et131x_netdev_ops;
-
- SET_NETDEV_DEV(netdev, &pdev->dev);
- netdev->ethtool_ops = &et131x_ethtool_ops;
-
- adapter = et131x_adapter_init(netdev, pdev);
-
- rc = et131x_pci_init(adapter, pdev);
- if (rc < 0)
- goto err_free_dev;
-
- /* Map the bus-relative registers to system virtual memory */
- adapter->regs = pci_ioremap_bar(pdev, 0);
- if (!adapter->regs) {
- dev_err(&pdev->dev, "Cannot map device registers\n");
- rc = -ENOMEM;
- goto err_free_dev;
- }
-
- /* If Phy COMA mode was enabled when we went down, disable it here. */
- writel(ET_PMCSR_INIT, &adapter->regs->global.pm_csr);
-
- /* Issue a global reset to the et1310 */
- et131x_soft_reset(adapter);
-
- /* Disable all interrupts (paranoid) */
- et131x_disable_interrupts(adapter);
-
- /* Allocate DMA memory */
- rc = et131x_adapter_memory_alloc(adapter);
- if (rc < 0) {
- dev_err(&pdev->dev, "Could not alloc adapter memory (DMA)\n");
- goto err_iounmap;
- }
-
- /* Init send data structures */
- et131x_init_send(adapter);
-
- netif_napi_add(netdev, &adapter->napi, et131x_poll, 64);
-
- /* Copy address into the net_device struct */
- memcpy(netdev->dev_addr, adapter->addr, ETH_ALEN);
-
- rc = -ENOMEM;
-
- /* Setup the mii_bus struct */
- adapter->mii_bus = mdiobus_alloc();
- if (!adapter->mii_bus) {
- dev_err(&pdev->dev, "Alloc of mii_bus struct failed\n");
- goto err_mem_free;
- }
-
- adapter->mii_bus->name = "et131x_eth_mii";
- snprintf(adapter->mii_bus->id, MII_BUS_ID_SIZE, "%x",
- (adapter->pdev->bus->number << 8) | adapter->pdev->devfn);
- adapter->mii_bus->priv = netdev;
- adapter->mii_bus->read = et131x_mdio_read;
- adapter->mii_bus->write = et131x_mdio_write;
- adapter->mii_bus->irq = kmalloc_array(PHY_MAX_ADDR, sizeof(int),
- GFP_KERNEL);
- if (!adapter->mii_bus->irq)
- goto err_mdio_free;
-
- for (ii = 0; ii < PHY_MAX_ADDR; ii++)
- adapter->mii_bus->irq[ii] = PHY_POLL;
-
- rc = mdiobus_register(adapter->mii_bus);
- if (rc < 0) {
- dev_err(&pdev->dev, "failed to register MII bus\n");
- goto err_mdio_free_irq;
- }
-
- rc = et131x_mii_probe(netdev);
- if (rc < 0) {
- dev_err(&pdev->dev, "failed to probe MII bus\n");
- goto err_mdio_unregister;
- }
-
- /* Setup et1310 as per the documentation */
- et131x_adapter_setup(adapter);
-
- /* Init variable for counting how long we do not have link status */
- adapter->boot_coma = 0;
- et1310_disable_phy_coma(adapter);
-
- /* We can enable interrupts now
- *
- * NOTE - Because registration of interrupt handler is done in the
- * device's open(), defer enabling device interrupts to that
- * point
- */
-
- /* Register the net_device struct with the Linux network layer */
- rc = register_netdev(netdev);
- if (rc < 0) {
- dev_err(&pdev->dev, "register_netdev() failed\n");
- goto err_phy_disconnect;
- }
-
- /* Register the net_device struct with the PCI subsystem. Save a copy
- * of the PCI config space for this device now that the device has
- * been initialized, just in case it needs to be quickly restored.
- */
- pci_set_drvdata(pdev, netdev);
-out:
- return rc;
-
-err_phy_disconnect:
- phy_disconnect(adapter->phydev);
-err_mdio_unregister:
- mdiobus_unregister(adapter->mii_bus);
-err_mdio_free_irq:
- kfree(adapter->mii_bus->irq);
-err_mdio_free:
- mdiobus_free(adapter->mii_bus);
-err_mem_free:
- et131x_adapter_memory_free(adapter);
-err_iounmap:
- iounmap(adapter->regs);
-err_free_dev:
- pci_dev_put(pdev);
- free_netdev(netdev);
-err_release_res:
- pci_release_regions(pdev);
-err_disable:
- pci_disable_device(pdev);
- goto out;
-}
-
-static const struct pci_device_id et131x_pci_table[] = {
- { PCI_VDEVICE(ATT, ET131X_PCI_DEVICE_ID_GIG), 0UL},
- { PCI_VDEVICE(ATT, ET131X_PCI_DEVICE_ID_FAST), 0UL},
- {0,}
-};
-MODULE_DEVICE_TABLE(pci, et131x_pci_table);
-
-static struct pci_driver et131x_driver = {
- .name = DRIVER_NAME,
- .id_table = et131x_pci_table,
- .probe = et131x_pci_setup,
- .remove = et131x_pci_remove,
- .driver.pm = ET131X_PM_OPS,
-};
-
-module_pci_driver(et131x_driver);
diff --git a/drivers/staging/et131x/et131x.h b/drivers/staging/et131x/et131x.h
deleted file mode 100644
index 0727523..0000000
--- a/drivers/staging/et131x/et131x.h
+++ /dev/null
@@ -1,1533 +0,0 @@
-/*
- * Copyright  2005 Agere Systems Inc.
- * All rights reserved.
- * http://www.agere.com
- *
- * SOFTWARE LICENSE
- *
- * This software is provided subject to the following terms and conditions,
- * which you should read carefully before using the software. Using this
- * software indicates your acceptance of these terms and conditions. If you do
- * not agree with these terms and conditions, do not use the software.
- *
- * Copyright  2005 Agere Systems Inc.
- * All rights reserved.
- *
- * Redistribution and use in source or binary forms, with or without
- * modifications, are permitted provided that the following conditions are met:
- *
- * . Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following Disclaimer as comments in the code as
- * well as in the documentation and/or other materials provided with the
- * distribution.
- *
- * . Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following Disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * . Neither the name of Agere Systems Inc. nor the names of the contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * Disclaimer
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY
- * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
- * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- */
-
-#define DRIVER_NAME "et131x"
-#define DRIVER_VERSION "v2.0"
-
-/* EEPROM registers */
-
-/* LBCIF Register Groups (addressed via 32-bit offsets) */
-#define LBCIF_DWORD0_GROUP 0xAC
-#define LBCIF_DWORD1_GROUP 0xB0
-
-/* LBCIF Registers (addressed via 8-bit offsets) */
-#define LBCIF_ADDRESS_REGISTER 0xAC
-#define LBCIF_DATA_REGISTER 0xB0
-#define LBCIF_CONTROL_REGISTER 0xB1
-#define LBCIF_STATUS_REGISTER 0xB2
-
-/* LBCIF Control Register Bits */
-#define LBCIF_CONTROL_SEQUENTIAL_READ 0x01
-#define LBCIF_CONTROL_PAGE_WRITE 0x02
-#define LBCIF_CONTROL_EEPROM_RELOAD 0x08
-#define LBCIF_CONTROL_TWO_BYTE_ADDR 0x20
-#define LBCIF_CONTROL_I2C_WRITE 0x40
-#define LBCIF_CONTROL_LBCIF_ENABLE 0x80
-
-/* LBCIF Status Register Bits */
-#define LBCIF_STATUS_PHY_QUEUE_AVAIL 0x01
-#define LBCIF_STATUS_I2C_IDLE 0x02
-#define LBCIF_STATUS_ACK_ERROR 0x04
-#define LBCIF_STATUS_GENERAL_ERROR 0x08
-#define LBCIF_STATUS_CHECKSUM_ERROR 0x40
-#define LBCIF_STATUS_EEPROM_PRESENT 0x80
-
-/* START OF GLOBAL REGISTER ADDRESS MAP */
-/*
- * 10bit registers
- *
- * Tx queue start address reg in global address map at address 0x0000
- * tx queue end address reg in global address map at address 0x0004
- * rx queue start address reg in global address map at address 0x0008
- * rx queue end address reg in global address map at address 0x000C
- */
-
-/*
- * structure for power management control status reg in global address map
- * located at address 0x0010
- * jagcore_rx_rdy bit 9
- * jagcore_tx_rdy bit 8
- * phy_lped_en bit 7
- * phy_sw_coma bit 6
- * rxclk_gate bit 5
- * txclk_gate bit 4
- * sysclk_gate bit 3
- * jagcore_rx_en bit 2
- * jagcore_tx_en bit 1
- * gigephy_en bit 0
- */
-#define ET_PM_PHY_SW_COMA 0x40
-#define ET_PMCSR_INIT 0x38
-
-/*
- * Interrupt status reg at address 0x0018
- */
-#define ET_INTR_TXDMA_ISR 0x00000008
-#define ET_INTR_TXDMA_ERR 0x00000010
-#define ET_INTR_RXDMA_XFR_DONE 0x00000020
-#define ET_INTR_RXDMA_FB_R0_LOW 0x00000040
-#define ET_INTR_RXDMA_FB_R1_LOW 0x00000080
-#define ET_INTR_RXDMA_STAT_LOW 0x00000100
-#define ET_INTR_RXDMA_ERR 0x00000200
-#define ET_INTR_WATCHDOG 0x00004000
-#define ET_INTR_WOL 0x00008000
-#define ET_INTR_PHY 0x00010000
-#define ET_INTR_TXMAC 0x00020000
-#define ET_INTR_RXMAC 0x00040000
-#define ET_INTR_MAC_STAT 0x00080000
-#define ET_INTR_SLV_TIMEOUT 0x00100000
-
-/*
- * Interrupt mask register at address 0x001C
- * Interrupt alias clear mask reg at address 0x0020
- * Interrupt status alias reg at address 0x0024
- *
- * Same masks as above
- */
-
-/*
- * Software reset reg at address 0x0028
- * 0: txdma_sw_reset
- * 1: rxdma_sw_reset
- * 2: txmac_sw_reset
- * 3: rxmac_sw_reset
- * 4: mac_sw_reset
- * 5: mac_stat_sw_reset
- * 6: mmc_sw_reset
- *31: selfclr_disable
- */
-#define ET_RESET_ALL 0x007F
-
-/*
- * SLV Timer reg at address 0x002C (low 24 bits)
- */
-
-/*
- * MSI Configuration reg at address 0x0030
- */
-#define ET_MSI_VECTOR 0x0000001F
-#define ET_MSI_TC 0x00070000
-
-/*
- * Loopback reg located at address 0x0034
- */
-#define ET_LOOP_MAC 0x00000001
-#define ET_LOOP_DMA 0x00000002
-
-/*
- * GLOBAL Module of JAGCore Address Mapping
- * Located at address 0x0000
- */
-struct global_regs { /* Location: */
- u32 txq_start_addr; /* 0x0000 */
- u32 txq_end_addr; /* 0x0004 */
- u32 rxq_start_addr; /* 0x0008 */
- u32 rxq_end_addr; /* 0x000C */
- u32 pm_csr; /* 0x0010 */
- u32 unused; /* 0x0014 */
- u32 int_status; /* 0x0018 */
- u32 int_mask; /* 0x001C */
- u32 int_alias_clr_en; /* 0x0020 */
- u32 int_status_alias; /* 0x0024 */
- u32 sw_reset; /* 0x0028 */
- u32 slv_timer; /* 0x002C */
- u32 msi_config; /* 0x0030 */
- u32 loopback; /* 0x0034 */
- u32 watchdog_timer; /* 0x0038 */
-};
-
-/* START OF TXDMA REGISTER ADDRESS MAP */
-/*
- * txdma control status reg at address 0x1000
- */
-#define ET_TXDMA_CSR_HALT 0x00000001
-#define ET_TXDMA_DROP_TLP 0x00000002
-#define ET_TXDMA_CACHE_THRS 0x000000F0
-#define ET_TXDMA_CACHE_SHIFT 4
-#define ET_TXDMA_SNGL_EPKT 0x00000100
-#define ET_TXDMA_CLASS 0x00001E00
-
-/*
- * structure for txdma packet ring base address hi reg in txdma address map
- * located at address 0x1004
- * Defined earlier (u32)
- */
-
-/*
- * structure for txdma packet ring base address low reg in txdma address map
- * located at address 0x1008
- * Defined earlier (u32)
- */
-
-/*
- * structure for txdma packet ring number of descriptor reg in txdma address
- * map. Located at address 0x100C
- *
- * 31-10: unused
- * 9-0: pr ndes
- */
-#define ET_DMA12_MASK 0x0FFF /* 12 bit mask for DMA12W types */
-#define ET_DMA12_WRAP 0x1000
-#define ET_DMA10_MASK 0x03FF /* 10 bit mask for DMA10W types */
-#define ET_DMA10_WRAP 0x0400
-#define ET_DMA4_MASK 0x000F /* 4 bit mask for DMA4W types */
-#define ET_DMA4_WRAP 0x0010
-
-#define INDEX12(x) ((x) & ET_DMA12_MASK)
-#define INDEX10(x) ((x) & ET_DMA10_MASK)
-#define INDEX4(x) ((x) & ET_DMA4_MASK)
-
-/*
- * 10bit DMA with wrap
- * txdma tx queue write address reg in txdma address map at 0x1010
- * txdma tx queue write address external reg in txdma address map at 0x1014
- * txdma tx queue read address reg in txdma address map at 0x1018
- *
- * u32
- * txdma status writeback address hi reg in txdma address map at0x101C
- * txdma status writeback address lo reg in txdma address map at 0x1020
- *
- * 10bit DMA with wrap
- * txdma service request reg in txdma address map at 0x1024
- * structure for txdma service complete reg in txdma address map at 0x1028
- *
- * 4bit DMA with wrap
- * txdma tx descriptor cache read index reg in txdma address map at 0x102C
- * txdma tx descriptor cache write index reg in txdma address map at 0x1030
- *
- * txdma error reg in txdma address map at address 0x1034
- * 0: PyldResend
- * 1: PyldRewind
- * 4: DescrResend
- * 5: DescrRewind
- * 8: WrbkResend
- * 9: WrbkRewind
- */
-
-/*
- * Tx DMA Module of JAGCore Address Mapping
- * Located at address 0x1000
- */
-struct txdma_regs { /* Location: */
- u32 csr; /* 0x1000 */
- u32 pr_base_hi; /* 0x1004 */
- u32 pr_base_lo; /* 0x1008 */
- u32 pr_num_des; /* 0x100C */
- u32 txq_wr_addr; /* 0x1010 */
- u32 txq_wr_addr_ext; /* 0x1014 */
- u32 txq_rd_addr; /* 0x1018 */
- u32 dma_wb_base_hi; /* 0x101C */
- u32 dma_wb_base_lo; /* 0x1020 */
- u32 service_request; /* 0x1024 */
- u32 service_complete; /* 0x1028 */
- u32 cache_rd_index; /* 0x102C */
- u32 cache_wr_index; /* 0x1030 */
- u32 tx_dma_error; /* 0x1034 */
- u32 desc_abort_cnt; /* 0x1038 */
- u32 payload_abort_cnt; /* 0x103c */
- u32 writeback_abort_cnt; /* 0x1040 */
- u32 desc_timeout_cnt; /* 0x1044 */
- u32 payload_timeout_cnt; /* 0x1048 */
- u32 writeback_timeout_cnt; /* 0x104c */
- u32 desc_error_cnt; /* 0x1050 */
- u32 payload_error_cnt; /* 0x1054 */
- u32 writeback_error_cnt; /* 0x1058 */
- u32 dropped_tlp_cnt; /* 0x105c */
- u32 new_service_complete; /* 0x1060 */
- u32 ethernet_packet_cnt; /* 0x1064 */
-};
-
-/* END OF TXDMA REGISTER ADDRESS MAP */
-
-/* START OF RXDMA REGISTER ADDRESS MAP */
-/*
- * structure for control status reg in rxdma address map
- * Located at address 0x2000
- *
- * CSR
- * 0: halt
- * 1-3: tc
- * 4: fbr_big_endian
- * 5: psr_big_endian
- * 6: pkt_big_endian
- * 7: dma_big_endian
- * 8-9: fbr0_size
- * 10: fbr0_enable
- * 11-12: fbr1_size
- * 13: fbr1_enable
- * 14: unused
- * 15: pkt_drop_disable
- * 16: pkt_done_flush
- * 17: halt_status
- * 18-31: unused
- */
-#define ET_RXDMA_CSR_HALT 0x0001
-#define ET_RXDMA_CSR_FBR0_SIZE_LO 0x0100
-#define ET_RXDMA_CSR_FBR0_SIZE_HI 0x0200
-#define ET_RXDMA_CSR_FBR0_ENABLE 0x0400
-#define ET_RXDMA_CSR_FBR1_SIZE_LO 0x0800
-#define ET_RXDMA_CSR_FBR1_SIZE_HI 0x1000
-#define ET_RXDMA_CSR_FBR1_ENABLE 0x2000
-#define ET_RXDMA_CSR_HALT_STATUS 0x00020000
-
-/*
- * structure for dma writeback lo reg in rxdma address map
- * located at address 0x2004
- * Defined earlier (u32)
- */
-
-/*
- * structure for dma writeback hi reg in rxdma address map
- * located at address 0x2008
- * Defined earlier (u32)
- */
-
-/*
- * structure for number of packets done reg in rxdma address map
- * located at address 0x200C
- *
- * 31-8: unused
- * 7-0: num done
- */
-
-/*
- * structure for max packet time reg in rxdma address map
- * located at address 0x2010
- *
- * 31-18: unused
- * 17-0: time done
- */
-
-/*
- * structure for rx queue read address reg in rxdma address map
- * located at address 0x2014
- * Defined earlier (u32)
- */
-
-/*
- * structure for rx queue read address external reg in rxdma address map
- * located at address 0x2018
- * Defined earlier (u32)
- */
-
-/*
- * structure for rx queue write address reg in rxdma address map
- * located at address 0x201C
- * Defined earlier (u32)
- */
-
-/*
- * structure for packet status ring base address lo reg in rxdma address map
- * located at address 0x2020
- * Defined earlier (u32)
- */
-
-/*
- * structure for packet status ring base address hi reg in rxdma address map
- * located at address 0x2024
- * Defined earlier (u32)
- */
-
-/*
- * structure for packet status ring number of descriptors reg in rxdma address
- * map. Located at address 0x2028
- *
- * 31-12: unused
- * 11-0: psr ndes
- */
-#define ET_RXDMA_PSR_NUM_DES_MASK 0xFFF
-
-/*
- * structure for packet status ring available offset reg in rxdma address map
- * located at address 0x202C
- *
- * 31-13: unused
- * 12: psr avail wrap
- * 11-0: psr avail
- */
-
-/*
- * structure for packet status ring full offset reg in rxdma address map
- * located at address 0x2030
- *
- * 31-13: unused
- * 12: psr full wrap
- * 11-0: psr full
- */
-
-/*
- * structure for packet status ring access index reg in rxdma address map
- * located at address 0x2034
- *
- * 31-5: unused
- * 4-0: psr_ai
- */
-
-/*
- * structure for packet status ring minimum descriptors reg in rxdma address
- * map. Located at address 0x2038
- *
- * 31-12: unused
- * 11-0: psr_min
- */
-
-/*
- * structure for free buffer ring base lo address reg in rxdma address map
- * located at address 0x203C
- * Defined earlier (u32)
- */
-
-/*
- * structure for free buffer ring base hi address reg in rxdma address map
- * located at address 0x2040
- * Defined earlier (u32)
- */
-
-/*
- * structure for free buffer ring number of descriptors reg in rxdma address
- * map. Located at address 0x2044
- *
- * 31-10: unused
- * 9-0: fbr ndesc
- */
-
-/*
- * structure for free buffer ring 0 available offset reg in rxdma address map
- * located at address 0x2048
- * Defined earlier (u32)
- */
-
-/*
- * structure for free buffer ring 0 full offset reg in rxdma address map
- * located at address 0x204C
- * Defined earlier (u32)
- */
-
-/*
- * structure for free buffer cache 0 full offset reg in rxdma address map
- * located at address 0x2050
- *
- * 31-5: unused
- * 4-0: fbc rdi
- */
-
-/*
- * structure for free buffer ring 0 minimum descriptor reg in rxdma address map
- * located at address 0x2054
- *
- * 31-10: unused
- * 9-0: fbr min
- */
-
-/*
- * structure for free buffer ring 1 base address lo reg in rxdma address map
- * located at address 0x2058 - 0x205C
- * Defined earlier (RXDMA_FBR_BASE_LO_t and RXDMA_FBR_BASE_HI_t)
- */
-
-/*
- * structure for free buffer ring 1 number of descriptors reg in rxdma address
- * map. Located at address 0x2060
- * Defined earlier (RXDMA_FBR_NUM_DES_t)
- */
-
-/*
- * structure for free buffer ring 1 available offset reg in rxdma address map
- * located at address 0x2064
- * Defined Earlier (RXDMA_FBR_AVAIL_OFFSET_t)
- */
-
-/*
- * structure for free buffer ring 1 full offset reg in rxdma address map
- * located at address 0x2068
- * Defined Earlier (RXDMA_FBR_FULL_OFFSET_t)
- */
-
-/*
- * structure for free buffer cache 1 read index reg in rxdma address map
- * located at address 0x206C
- * Defined Earlier (RXDMA_FBC_RD_INDEX_t)
- */
-
-/*
- * structure for free buffer ring 1 minimum descriptor reg in rxdma address map
- * located at address 0x2070
- * Defined Earlier (RXDMA_FBR_MIN_DES_t)
- */
-
-/*
- * Rx DMA Module of JAGCore Address Mapping
- * Located at address 0x2000
- */
-struct rxdma_regs { /* Location: */
- u32 csr; /* 0x2000 */
- u32 dma_wb_base_lo; /* 0x2004 */
- u32 dma_wb_base_hi; /* 0x2008 */
- u32 num_pkt_done; /* 0x200C */
- u32 max_pkt_time; /* 0x2010 */
- u32 rxq_rd_addr; /* 0x2014 */
- u32 rxq_rd_addr_ext; /* 0x2018 */
- u32 rxq_wr_addr; /* 0x201C */
- u32 psr_base_lo; /* 0x2020 */
- u32 psr_base_hi; /* 0x2024 */
- u32 psr_num_des; /* 0x2028 */
- u32 psr_avail_offset; /* 0x202C */
- u32 psr_full_offset; /* 0x2030 */
- u32 psr_access_index; /* 0x2034 */
- u32 psr_min_des; /* 0x2038 */
- u32 fbr0_base_lo; /* 0x203C */
- u32 fbr0_base_hi; /* 0x2040 */
- u32 fbr0_num_des; /* 0x2044 */
- u32 fbr0_avail_offset; /* 0x2048 */
- u32 fbr0_full_offset; /* 0x204C */
- u32 fbr0_rd_index; /* 0x2050 */
- u32 fbr0_min_des; /* 0x2054 */
- u32 fbr1_base_lo; /* 0x2058 */
- u32 fbr1_base_hi; /* 0x205C */
- u32 fbr1_num_des; /* 0x2060 */
- u32 fbr1_avail_offset; /* 0x2064 */
- u32 fbr1_full_offset; /* 0x2068 */
- u32 fbr1_rd_index; /* 0x206C */
- u32 fbr1_min_des; /* 0x2070 */
-};
-
-/* END OF RXDMA REGISTER ADDRESS MAP */
-
-/* START OF TXMAC REGISTER ADDRESS MAP */
-/*
- * structure for control reg in txmac address map
- * located at address 0x3000
- *
- * bits
- * 31-8: unused
- * 7: cklseg_disable
- * 6: ckbcnt_disable
- * 5: cksegnum
- * 4: async_disable
- * 3: fc_disable
- * 2: mcif_disable
- * 1: mif_disable
- * 0: txmac_en
- */
-#define ET_TX_CTRL_FC_DISABLE 0x0008
-#define ET_TX_CTRL_TXMAC_ENABLE 0x0001
-
-/*
- * structure for shadow pointer reg in txmac address map
- * located at address 0x3004
- * 31-27: reserved
- * 26-16: txq rd ptr
- * 15-11: reserved
- * 10-0: txq wr ptr
- */
-
-/*
- * structure for error count reg in txmac address map
- * located at address 0x3008
- *
- * 31-12: unused
- * 11-8: reserved
- * 7-4: txq_underrun
- * 3-0: fifo_underrun
- */
-
-/*
- * structure for max fill reg in txmac address map
- * located at address 0x300C
- * 31-12: unused
- * 11-0: max fill
- */
-
-/*
- * structure for cf parameter reg in txmac address map
- * located at address 0x3010
- * 31-16: cfep
- * 15-0: cfpt
- */
-
-/*
- * structure for tx test reg in txmac address map
- * located at address 0x3014
- * 31-17: unused
- * 16: reserved
- * 15: txtest_en
- * 14-11: unused
- * 10-0: txq test pointer
- */
-
-/*
- * structure for error reg in txmac address map
- * located at address 0x3018
- *
- * 31-9: unused
- * 8: fifo_underrun
- * 7-6: unused
- * 5: ctrl2_err
- * 4: txq_underrun
- * 3: bcnt_err
- * 2: lseg_err
- * 1: segnum_err
- * 0: seg0_err
- */
-
-/*
- * structure for error interrupt reg in txmac address map
- * located at address 0x301C
- *
- * 31-9: unused
- * 8: fifo_underrun
- * 7-6: unused
- * 5: ctrl2_err
- * 4: txq_underrun
- * 3: bcnt_err
- * 2: lseg_err
- * 1: segnum_err
- * 0: seg0_err
- */
-
-/*
- * structure for error interrupt reg in txmac address map
- * located at address 0x3020
- *
- * 31-2: unused
- * 1: bp_req
- * 0: bp_xonxoff
- */
-
-/*
- * Tx MAC Module of JAGCore Address Mapping
- */
-struct txmac_regs { /* Location: */
- u32 ctl; /* 0x3000 */
- u32 shadow_ptr; /* 0x3004 */
- u32 err_cnt; /* 0x3008 */
- u32 max_fill; /* 0x300C */
- u32 cf_param; /* 0x3010 */
- u32 tx_test; /* 0x3014 */
- u32 err; /* 0x3018 */
- u32 err_int; /* 0x301C */
- u32 bp_ctrl; /* 0x3020 */
-};
-
-/* END OF TXMAC REGISTER ADDRESS MAP */
-
-/* START OF RXMAC REGISTER ADDRESS MAP */
-
-/*
- * structure for rxmac control reg in rxmac address map
- * located at address 0x4000
- *
- * 31-7: reserved
- * 6: rxmac_int_disable
- * 5: async_disable
- * 4: mif_disable
- * 3: wol_disable
- * 2: pkt_filter_disable
- * 1: mcif_disable
- * 0: rxmac_en
- */
-#define ET_RX_CTRL_WOL_DISABLE 0x0008
-#define ET_RX_CTRL_RXMAC_ENABLE 0x0001
-
-/*
- * structure for Wake On Lan Control and CRC 0 reg in rxmac address map
- * located at address 0x4004
- * 31-16: crc
- * 15-12: reserved
- * 11: ignore_pp
- * 10: ignore_mp
- * 9: clr_intr
- * 8: ignore_link_chg
- * 7: ignore_uni
- * 6: ignore_multi
- * 5: ignore_broad
- * 4-0: valid_crc 4-0
- */
-
-/*
- * structure for CRC 1 and CRC 2 reg in rxmac address map
- * located at address 0x4008
- *
- * 31-16: crc2
- * 15-0: crc1
- */
-
-/*
- * structure for CRC 3 and CRC 4 reg in rxmac address map
- * located at address 0x400C
- *
- * 31-16: crc4
- * 15-0: crc3
- */
-
-/*
- * structure for Wake On Lan Source Address Lo reg in rxmac address map
- * located at address 0x4010
- *
- * 31-24: sa3
- * 23-16: sa4
- * 15-8: sa5
- * 7-0: sa6
- */
-#define ET_RX_WOL_LO_SA3_SHIFT 24
-#define ET_RX_WOL_LO_SA4_SHIFT 16
-#define ET_RX_WOL_LO_SA5_SHIFT 8
-
-/*
- * structure for Wake On Lan Source Address Hi reg in rxmac address map
- * located at address 0x4014
- *
- * 31-16: reserved
- * 15-8: sa1
- * 7-0: sa2
- */
-#define ET_RX_WOL_HI_SA1_SHIFT 8
-
-/*
- * structure for Wake On Lan mask reg in rxmac address map
- * located at address 0x4018 - 0x4064
- * Defined earlier (u32)
- */
-
-/*
- * structure for Unicast Packet Filter Address 1 reg in rxmac address map
- * located at address 0x4068
- *
- * 31-24: addr1_3
- * 23-16: addr1_4
- * 15-8: addr1_5
- * 7-0: addr1_6
- */
-#define ET_RX_UNI_PF_ADDR1_3_SHIFT 24
-#define ET_RX_UNI_PF_ADDR1_4_SHIFT 16
-#define ET_RX_UNI_PF_ADDR1_5_SHIFT 8
-
-/*
- * structure for Unicast Packet Filter Address 2 reg in rxmac address map
- * located at address 0x406C
- *
- * 31-24: addr2_3
- * 23-16: addr2_4
- * 15-8: addr2_5
- * 7-0: addr2_6
- */
-#define ET_RX_UNI_PF_ADDR2_3_SHIFT 24
-#define ET_RX_UNI_PF_ADDR2_4_SHIFT 16
-#define ET_RX_UNI_PF_ADDR2_5_SHIFT 8
-
-/*
- * structure for Unicast Packet Filter Address 1 & 2 reg in rxmac address map
- * located at address 0x4070
- *
- * 31-24: addr2_1
- * 23-16: addr2_2
- * 15-8: addr1_1
- * 7-0: addr1_2
- */
-#define ET_RX_UNI_PF_ADDR2_1_SHIFT 24
-#define ET_RX_UNI_PF_ADDR2_2_SHIFT 16
-#define ET_RX_UNI_PF_ADDR1_1_SHIFT 8
-
-/*
- * structure for Multicast Hash reg in rxmac address map
- * located at address 0x4074 - 0x4080
- * Defined earlier (u32)
- */
-
-/*
- * structure for Packet Filter Control reg in rxmac address map
- * located at address 0x4084
- *
- * 31-23: unused
- * 22-16: min_pkt_size
- * 15-4: unused
- * 3: filter_frag_en
- * 2: filter_uni_en
- * 1: filter_multi_en
- * 0: filter_broad_en
- */
-#define ET_RX_PFCTRL_MIN_PKT_SZ_SHIFT 16
-#define ET_RX_PFCTRL_FRAG_FILTER_ENABLE 0x0008
-#define ET_RX_PFCTRL_UNICST_FILTER_ENABLE 0x0004
-#define ET_RX_PFCTRL_MLTCST_FILTER_ENABLE 0x0002
-#define ET_RX_PFCTRL_BRDCST_FILTER_ENABLE 0x0001
-
-/*
- * structure for Memory Controller Interface Control Max Segment reg in rxmac
- * address map. Located at address 0x4088
- *
- * 31-10: reserved
- * 9-2: max_size
- * 1: fc_en
- * 0: seg_en
- */
-#define ET_RX_MCIF_CTRL_MAX_SEG_SIZE_SHIFT 2
-#define ET_RX_MCIF_CTRL_MAX_SEG_FC_ENABLE 0x0002
-#define ET_RX_MCIF_CTRL_MAX_SEG_ENABLE 0x0001
-
-/*
- * structure for Memory Controller Interface Water Mark reg in rxmac address
- * map. Located at address 0x408C
- *
- * 31-26: unused
- * 25-16: mark_hi
- * 15-10: unused
- * 9-0: mark_lo
- */
-
-/*
- * structure for Rx Queue Dialog reg in rxmac address map.
- * located at address 0x4090
- *
- * 31-26: reserved
- * 25-16: rd_ptr
- * 15-10: reserved
- * 9-0: wr_ptr
- */
-
-/*
- * structure for space available reg in rxmac address map.
- * located at address 0x4094
- *
- * 31-17: reserved
- * 16: space_avail_en
- * 15-10: reserved
- * 9-0: space_avail
- */
-
-/*
- * structure for management interface reg in rxmac address map.
- * located at address 0x4098
- *
- * 31-18: reserved
- * 17: drop_pkt_en
- * 16-0: drop_pkt_mask
- */
-
-/*
- * structure for Error reg in rxmac address map.
- * located at address 0x409C
- *
- * 31-4: unused
- * 3: mif
- * 2: async
- * 1: pkt_filter
- * 0: mcif
- */
-
-/*
- * Rx MAC Module of JAGCore Address Mapping
- */
-struct rxmac_regs { /* Location: */
- u32 ctrl; /* 0x4000 */
- u32 crc0; /* 0x4004 */
- u32 crc12; /* 0x4008 */
- u32 crc34; /* 0x400C */
- u32 sa_lo; /* 0x4010 */
- u32 sa_hi; /* 0x4014 */
- u32 mask0_word0; /* 0x4018 */
- u32 mask0_word1; /* 0x401C */
- u32 mask0_word2; /* 0x4020 */
- u32 mask0_word3; /* 0x4024 */
- u32 mask1_word0; /* 0x4028 */
- u32 mask1_word1; /* 0x402C */
- u32 mask1_word2; /* 0x4030 */
- u32 mask1_word3; /* 0x4034 */
- u32 mask2_word0; /* 0x4038 */
- u32 mask2_word1; /* 0x403C */
- u32 mask2_word2; /* 0x4040 */
- u32 mask2_word3; /* 0x4044 */
- u32 mask3_word0; /* 0x4048 */
- u32 mask3_word1; /* 0x404C */
- u32 mask3_word2; /* 0x4050 */
- u32 mask3_word3; /* 0x4054 */
- u32 mask4_word0; /* 0x4058 */
- u32 mask4_word1; /* 0x405C */
- u32 mask4_word2; /* 0x4060 */
- u32 mask4_word3; /* 0x4064 */
- u32 uni_pf_addr1; /* 0x4068 */
- u32 uni_pf_addr2; /* 0x406C */
- u32 uni_pf_addr3; /* 0x4070 */
- u32 multi_hash1; /* 0x4074 */
- u32 multi_hash2; /* 0x4078 */
- u32 multi_hash3; /* 0x407C */
- u32 multi_hash4; /* 0x4080 */
- u32 pf_ctrl; /* 0x4084 */
- u32 mcif_ctrl_max_seg; /* 0x4088 */
- u32 mcif_water_mark; /* 0x408C */
- u32 rxq_diag; /* 0x4090 */
- u32 space_avail; /* 0x4094 */
-
- u32 mif_ctrl; /* 0x4098 */
- u32 err_reg; /* 0x409C */
-};
-
-/* END OF RXMAC REGISTER ADDRESS MAP */
-
-/* START OF MAC REGISTER ADDRESS MAP */
-/*
- * structure for configuration #1 reg in mac address map.
- * located at address 0x5000
- *
- * 31: soft reset
- * 30: sim reset
- * 29-20: reserved
- * 19: reset rx mc
- * 18: reset tx mc
- * 17: reset rx func
- * 16: reset tx fnc
- * 15-9: reserved
- * 8: loopback
- * 7-6: reserved
- * 5: rx flow
- * 4: tx flow
- * 3: syncd rx en
- * 2: rx enable
- * 1: syncd tx en
- * 0: tx enable
- */
-#define ET_MAC_CFG1_SOFT_RESET 0x80000000
-#define ET_MAC_CFG1_SIM_RESET 0x40000000
-#define ET_MAC_CFG1_RESET_RXMC 0x00080000
-#define ET_MAC_CFG1_RESET_TXMC 0x00040000
-#define ET_MAC_CFG1_RESET_RXFUNC 0x00020000
-#define ET_MAC_CFG1_RESET_TXFUNC 0x00010000
-#define ET_MAC_CFG1_LOOPBACK 0x00000100
-#define ET_MAC_CFG1_RX_FLOW 0x00000020
-#define ET_MAC_CFG1_TX_FLOW 0x00000010
-#define ET_MAC_CFG1_RX_ENABLE 0x00000004
-#define ET_MAC_CFG1_TX_ENABLE 0x00000001
-#define ET_MAC_CFG1_WAIT 0x0000000A /* RX & TX syncd */
-
-/*
- * structure for configuration #2 reg in mac address map.
- * located at address 0x5004
- * 31-16: reserved
- * 15-12: preamble
- * 11-10: reserved
- * 9-8: if mode
- * 7-6: reserved
- * 5: huge frame
- * 4: length check
- * 3: undefined
- * 2: pad crc
- * 1: crc enable
- * 0: full duplex
- */
-#define ET_MAC_CFG2_PREAMBLE_SHIFT 12
-#define ET_MAC_CFG2_IFMODE_MASK 0x0300
-#define ET_MAC_CFG2_IFMODE_1000 0x0200
-#define ET_MAC_CFG2_IFMODE_100 0x0100
-#define ET_MAC_CFG2_IFMODE_HUGE_FRAME 0x0020
-#define ET_MAC_CFG2_IFMODE_LEN_CHECK 0x0010
-#define ET_MAC_CFG2_IFMODE_PAD_CRC 0x0004
-#define ET_MAC_CFG2_IFMODE_CRC_ENABLE 0x0002
-#define ET_MAC_CFG2_IFMODE_FULL_DPLX 0x0001
-
-/*
- * structure for Interpacket gap reg in mac address map.
- * located at address 0x5008
- *
- * 31: reserved
- * 30-24: non B2B ipg 1
- * 23: undefined
- * 22-16: non B2B ipg 2
- * 15-8: Min ifg enforce
- * 7-0: B2B ipg
- *
- * structure for half duplex reg in mac address map.
- * located at address 0x500C
- * 31-24: reserved
- * 23-20: Alt BEB trunc
- * 19: Alt BEB enable
- * 18: BP no backoff
- * 17: no backoff
- * 16: excess defer
- * 15-12: re-xmit max
- * 11-10: reserved
- * 9-0: collision window
- */
-
-/*
- * structure for Maximum Frame Length reg in mac address map.
- * located at address 0x5010: bits 0-15 hold the length.
- */
-
-/*
- * structure for Reserve 1 reg in mac address map.
- * located at address 0x5014 - 0x5018
- * Defined earlier (u32)
- */
-
-/*
- * structure for Test reg in mac address map.
- * located at address 0x501C
- * test: bits 0-2, rest unused
- */
-
-/*
- * structure for MII Management Configuration reg in mac address map.
- * located at address 0x5020
- *
- * 31: reset MII mgmt
- * 30-6: unused
- * 5: scan auto increment
- * 4: preamble suppress
- * 3: undefined
- * 2-0: mgmt clock reset
- */
-#define ET_MAC_MIIMGMT_CLK_RST 0x0007
-
-/*
- * structure for MII Management Command reg in mac address map.
- * located at address 0x5024
- * bit 1: scan cycle
- * bit 0: read cycle
- */
-
-/*
- * structure for MII Management Address reg in mac address map.
- * located at address 0x5028
- * 31-13: reserved
- * 12-8: phy addr
- * 7-5: reserved
- * 4-0: register
- */
-#define ET_MAC_MII_ADDR(phy, reg) ((phy) << 8 | (reg))
-
-/*
- * structure for MII Management Control reg in mac address map.
- * located at address 0x502C
- * 31-16: reserved
- * 15-0: phy control
- */
-
-/*
- * structure for MII Management Status reg in mac address map.
- * located at address 0x5030
- * 31-16: reserved
- * 15-0: phy control
- */
-#define ET_MAC_MIIMGMT_STAT_PHYCRTL_MASK 0xFFFF
-
-/*
- * structure for MII Management Indicators reg in mac address map.
- * located at address 0x5034
- * 31-3: reserved
- * 2: not valid
- * 1: scanning
- * 0: busy
- */
-#define ET_MAC_MGMT_BUSY 0x00000001 /* busy */
-#define ET_MAC_MGMT_WAIT 0x00000005 /* busy | not valid */
-
-/*
- * structure for Interface Control reg in mac address map.
- * located at address 0x5038
- *
- * 31: reset if module
- * 30-28: reserved
- * 27: tbi mode
- * 26: ghd mode
- * 25: lhd mode
- * 24: phy mode
- * 23: reset per mii
- * 22-17: reserved
- * 16: speed
- * 15: reset pe100x
- * 14-11: reserved
- * 10: force quiet
- * 9: no cipher
- * 8: disable link fail
- * 7: reset gpsi
- * 6-1: reserved
- * 0: enable jabber protection
- */
-#define ET_MAC_IFCTRL_GHDMODE (1 << 26)
-#define ET_MAC_IFCTRL_PHYMODE (1 << 24)
-
-/*
- * structure for Interface Status reg in mac address map.
- * located at address 0x503C
- *
- * 31-10: reserved
- * 9: excess_defer
- * 8: clash
- * 7: phy_jabber
- * 6: phy_link_ok
- * 5: phy_full_duplex
- * 4: phy_speed
- * 3: pe100x_link_fail
- * 2: pe10t_loss_carrier
- * 1: pe10t_sqe_error
- * 0: pe10t_jabber
- */
-
-/*
- * structure for Mac Station Address, Part 1 reg in mac address map.
- * located at address 0x5040
- *
- * 31-24: Octet6
- * 23-16: Octet5
- * 15-8: Octet4
- * 7-0: Octet3
- */
-#define ET_MAC_STATION_ADDR1_OC6_SHIFT 24
-#define ET_MAC_STATION_ADDR1_OC5_SHIFT 16
-#define ET_MAC_STATION_ADDR1_OC4_SHIFT 8
-
-/*
- * structure for Mac Station Address, Part 2 reg in mac address map.
- * located at address 0x5044
- *
- * 31-24: Octet2
- * 23-16: Octet1
- * 15-0: reserved
- */
-#define ET_MAC_STATION_ADDR2_OC2_SHIFT 24
-#define ET_MAC_STATION_ADDR2_OC1_SHIFT 16
-
-/*
- * MAC Module of JAGCore Address Mapping
- */
-struct mac_regs { /* Location: */
- u32 cfg1; /* 0x5000 */
- u32 cfg2; /* 0x5004 */
- u32 ipg; /* 0x5008 */
- u32 hfdp; /* 0x500C */
- u32 max_fm_len; /* 0x5010 */
- u32 rsv1; /* 0x5014 */
- u32 rsv2; /* 0x5018 */
- u32 mac_test; /* 0x501C */
- u32 mii_mgmt_cfg; /* 0x5020 */
- u32 mii_mgmt_cmd; /* 0x5024 */
- u32 mii_mgmt_addr; /* 0x5028 */
- u32 mii_mgmt_ctrl; /* 0x502C */
- u32 mii_mgmt_stat; /* 0x5030 */
- u32 mii_mgmt_indicator; /* 0x5034 */
- u32 if_ctrl; /* 0x5038 */
- u32 if_stat; /* 0x503C */
- u32 station_addr_1; /* 0x5040 */
- u32 station_addr_2; /* 0x5044 */
-};
-
-/* END OF MAC REGISTER ADDRESS MAP */
-
-/* START OF MAC STAT REGISTER ADDRESS MAP */
-/*
- * structure for Carry Register One and it's Mask Register reg located in mac
- * stat address map address 0x6130 and 0x6138.
- *
- * 31: tr64
- * 30: tr127
- * 29: tr255
- * 28: tr511
- * 27: tr1k
- * 26: trmax
- * 25: trmgv
- * 24-17: unused
- * 16: rbyt
- * 15: rpkt
- * 14: rfcs
- * 13: rmca
- * 12: rbca
- * 11: rxcf
- * 10: rxpf
- * 9: rxuo
- * 8: raln
- * 7: rflr
- * 6: rcde
- * 5: rcse
- * 4: rund
- * 3: rovr
- * 2: rfrg
- * 1: rjbr
- * 0: rdrp
- */
-
-/*
- * structure for Carry Register Two Mask Register reg in mac stat address map.
- * located at address 0x613C
- *
- * 31-20: unused
- * 19: tjbr
- * 18: tfcs
- * 17: txcf
- * 16: tovr
- * 15: tund
- * 14: trfg
- * 13: tbyt
- * 12: tpkt
- * 11: tmca
- * 10: tbca
- * 9: txpf
- * 8: tdfr
- * 7: tedf
- * 6: tscl
- * 5: tmcl
- * 4: tlcl
- * 3: txcl
- * 2: tncl
- * 1: tpfh
- * 0: tdrp
- */
-
-/*
- * MAC STATS Module of JAGCore Address Mapping
- */
-struct macstat_regs { /* Location: */
- u32 pad[32]; /* 0x6000 - 607C */
-
- /* counters */
- u32 txrx_0_64_byte_frames; /* 0x6080 */
- u32 txrx_65_127_byte_frames; /* 0x6084 */
- u32 txrx_128_255_byte_frames; /* 0x6088 */
- u32 txrx_256_511_byte_frames; /* 0x608C */
- u32 txrx_512_1023_byte_frames; /* 0x6090 */
- u32 txrx_1024_1518_byte_frames; /* 0x6094 */
- u32 txrx_1519_1522_gvln_frames; /* 0x6098 */
- u32 rx_bytes; /* 0x609C */
- u32 rx_packets; /* 0x60A0 */
- u32 rx_fcs_errs; /* 0x60A4 */
- u32 rx_multicast_packets; /* 0x60A8 */
- u32 rx_broadcast_packets; /* 0x60AC */
- u32 rx_control_frames; /* 0x60B0 */
- u32 rx_pause_frames; /* 0x60B4 */
- u32 rx_unknown_opcodes; /* 0x60B8 */
- u32 rx_align_errs; /* 0x60BC */
- u32 rx_frame_len_errs; /* 0x60C0 */
- u32 rx_code_errs; /* 0x60C4 */
- u32 rx_carrier_sense_errs; /* 0x60C8 */
- u32 rx_undersize_packets; /* 0x60CC */
- u32 rx_oversize_packets; /* 0x60D0 */
- u32 rx_fragment_packets; /* 0x60D4 */
- u32 rx_jabbers; /* 0x60D8 */
- u32 rx_drops; /* 0x60DC */
- u32 tx_bytes; /* 0x60E0 */
- u32 tx_packets; /* 0x60E4 */
- u32 tx_multicast_packets; /* 0x60E8 */
- u32 tx_broadcast_packets; /* 0x60EC */
- u32 tx_pause_frames; /* 0x60F0 */
- u32 tx_deferred; /* 0x60F4 */
- u32 tx_excessive_deferred; /* 0x60F8 */
- u32 tx_single_collisions; /* 0x60FC */
- u32 tx_multiple_collisions; /* 0x6100 */
- u32 tx_late_collisions; /* 0x6104 */
- u32 tx_excessive_collisions; /* 0x6108 */
- u32 tx_total_collisions; /* 0x610C */
- u32 tx_pause_honored_frames; /* 0x6110 */
- u32 tx_drops; /* 0x6114 */
- u32 tx_jabbers; /* 0x6118 */
- u32 tx_fcs_errs; /* 0x611C */
- u32 tx_control_frames; /* 0x6120 */
- u32 tx_oversize_frames; /* 0x6124 */
- u32 tx_undersize_frames; /* 0x6128 */
- u32 tx_fragments; /* 0x612C */
- u32 carry_reg1; /* 0x6130 */
- u32 carry_reg2; /* 0x6134 */
- u32 carry_reg1_mask; /* 0x6138 */
- u32 carry_reg2_mask; /* 0x613C */
-};
-
-/* END OF MAC STAT REGISTER ADDRESS MAP */
-
-/* START OF MMC REGISTER ADDRESS MAP */
-/*
- * Main Memory Controller Control reg in mmc address map.
- * located at address 0x7000
- */
-#define ET_MMC_ENABLE 1
-#define ET_MMC_ARB_DISABLE 2
-#define ET_MMC_RXMAC_DISABLE 4
-#define ET_MMC_TXMAC_DISABLE 8
-#define ET_MMC_TXDMA_DISABLE 16
-#define ET_MMC_RXDMA_DISABLE 32
-#define ET_MMC_FORCE_CE 64
-
-/*
- * Main Memory Controller Host Memory Access Address reg in mmc
- * address map. Located at address 0x7004. Top 16 bits hold the address bits
- */
-#define ET_SRAM_REQ_ACCESS 1
-#define ET_SRAM_WR_ACCESS 2
-#define ET_SRAM_IS_CTRL 4
-
-/*
- * structure for Main Memory Controller Host Memory Access Data reg in mmc
- * address map. Located at address 0x7008 - 0x7014
- * Defined earlier (u32)
- */
-
-/*
- * Memory Control Module of JAGCore Address Mapping
- */
-struct mmc_regs { /* Location: */
- u32 mmc_ctrl; /* 0x7000 */
- u32 sram_access; /* 0x7004 */
- u32 sram_word1; /* 0x7008 */
- u32 sram_word2; /* 0x700C */
- u32 sram_word3; /* 0x7010 */
- u32 sram_word4; /* 0x7014 */
-};
-
-/* END OF MMC REGISTER ADDRESS MAP */
-
-/*
- * JAGCore Address Mapping
- */
-struct address_map {
- struct global_regs global;
- /* unused section of global address map */
- u8 unused_global[4096 - sizeof(struct global_regs)];
- struct txdma_regs txdma;
- /* unused section of txdma address map */
- u8 unused_txdma[4096 - sizeof(struct txdma_regs)];
- struct rxdma_regs rxdma;
- /* unused section of rxdma address map */
- u8 unused_rxdma[4096 - sizeof(struct rxdma_regs)];
- struct txmac_regs txmac;
- /* unused section of txmac address map */
- u8 unused_txmac[4096 - sizeof(struct txmac_regs)];
- struct rxmac_regs rxmac;
- /* unused section of rxmac address map */
- u8 unused_rxmac[4096 - sizeof(struct rxmac_regs)];
- struct mac_regs mac;
- /* unused section of mac address map */
- u8 unused_mac[4096 - sizeof(struct mac_regs)];
- struct macstat_regs macstat;
- /* unused section of mac stat address map */
- u8 unused_mac_stat[4096 - sizeof(struct macstat_regs)];
- struct mmc_regs mmc;
- /* unused section of mmc address map */
- u8 unused_mmc[4096 - sizeof(struct mmc_regs)];
- /* unused section of address map */
- u8 unused_[1015808];
- u8 unused_exp_rom[4096]; /* MGS-size TBD */
- u8 unused__[524288]; /* unused section of address map */
-};
-
-/*
- * Defines for generic MII registers 0x00 -> 0x0F can be found in
- * include/linux/mii.h
- */
-/* some defines for modem registers that seem to be 'reserved' */
-#define PHY_INDEX_REG 0x10
-#define PHY_DATA_REG 0x11
-#define PHY_MPHY_CONTROL_REG 0x12
-
-/* defines for specified registers */
-#define PHY_LOOPBACK_CONTROL 0x13 /* TRU_VMI_LOOPBACK_CONTROL_1_REG 19 */
- /* TRU_VMI_LOOPBACK_CONTROL_2_REG 20 */
-#define PHY_REGISTER_MGMT_CONTROL 0x15 /* TRU_VMI_MI_SEQ_CONTROL_REG 21 */
-#define PHY_CONFIG 0x16 /* TRU_VMI_CONFIGURATION_REG 22 */
-#define PHY_PHY_CONTROL 0x17 /* TRU_VMI_PHY_CONTROL_REG 23 */
-#define PHY_INTERRUPT_MASK 0x18 /* TRU_VMI_INTERRUPT_MASK_REG 24 */
-#define PHY_INTERRUPT_STATUS 0x19 /* TRU_VMI_INTERRUPT_STATUS_REG 25 */
-#define PHY_PHY_STATUS 0x1A /* TRU_VMI_PHY_STATUS_REG 26 */
-#define PHY_LED_1 0x1B /* TRU_VMI_LED_CONTROL_1_REG 27 */
-#define PHY_LED_2 0x1C /* TRU_VMI_LED_CONTROL_2_REG 28 */
- /* TRU_VMI_LINK_CONTROL_REG 29 */
- /* TRU_VMI_TIMING_CONTROL_REG */
-
-/* MI Register 10: Gigabit basic mode status reg(Reg 0x0A) */
-#define ET_1000BT_MSTR_SLV 0x4000
-
-/* MI Register 16 - 18: Reserved Reg(0x10-0x12) */
-
-/* MI Register 19: Loopback Control Reg(0x13)
- * 15: mii_en
- * 14: pcs_en
- * 13: pmd_en
- * 12: all_digital_en
- * 11: replica_en
- * 10: line_driver_en
- * 9-0: reserved
- */
-
-/* MI Register 20: Reserved Reg(0x14) */
-
-/* MI Register 21: Management Interface Control Reg(0x15)
- * 15-11: reserved
- * 10-4: mi_error_count
- * 3: reserved
- * 2: ignore_10g_fr
- * 1: reserved
- * 0: preamble_suppress_en
- */
-
-/* MI Register 22: PHY Configuration Reg(0x16)
- * 15: crs_tx_en
- * 14: reserved
- * 13-12: tx_fifo_depth
- * 11-10: speed_downshift
- * 9: pbi_detect
- * 8: tbi_rate
- * 7: alternate_np
- * 6: group_mdio_en
- * 5: tx_clock_en
- * 4: sys_clock_en
- * 3: reserved
- * 2-0: mac_if_mode
- */
-#define ET_PHY_CONFIG_TX_FIFO_DEPTH 0x3000
-
-#define ET_PHY_CONFIG_FIFO_DEPTH_8 0x0000
-#define ET_PHY_CONFIG_FIFO_DEPTH_16 0x1000
-#define ET_PHY_CONFIG_FIFO_DEPTH_32 0x2000
-#define ET_PHY_CONFIG_FIFO_DEPTH_64 0x3000
-
-/* MI Register 23: PHY CONTROL Reg(0x17)
- * 15: reserved
- * 14: tdr_en
- * 13: reserved
- * 12-11: downshift_attempts
- * 10-6: reserved
- * 5: jabber_10baseT
- * 4: sqe_10baseT
- * 3: tp_loopback_10baseT
- * 2: preamble_gen_en
- * 1: reserved
- * 0: force_int
- */
-
-/* MI Register 24: Interrupt Mask Reg(0x18)
- * 15-10: reserved
- * 9: mdio_sync_lost
- * 8: autoneg_status
- * 7: hi_bit_err
- * 6: np_rx
- * 5: err_counter_full
- * 4: fifo_over_underflow
- * 3: rx_status
- * 2: link_status
- * 1: automatic_speed
- * 0: int_en
- */
-
-/* MI Register 25: Interrupt Status Reg(0x19)
- * 15-10: reserved
- * 9: mdio_sync_lost
- * 8: autoneg_status
- * 7: hi_bit_err
- * 6: np_rx
- * 5: err_counter_full
- * 4: fifo_over_underflow
- * 3: rx_status
- * 2: link_status
- * 1: automatic_speed
- * 0: int_en
- */
-
-/* MI Register 26: PHY Status Reg(0x1A)
- * 15: reserved
- * 14-13: autoneg_fault
- * 12: autoneg_status
- * 11: mdi_x_status
- * 10: polarity_status
- * 9-8: speed_status
- * 7: duplex_status
- * 6: link_status
- * 5: tx_status
- * 4: rx_status
- * 3: collision_status
- * 2: autoneg_en
- * 1: pause_en
- * 0: asymmetric_dir
- */
-#define ET_PHY_AUTONEG_STATUS 0x1000
-#define ET_PHY_POLARITY_STATUS 0x0400
-#define ET_PHY_SPEED_STATUS 0x0300
-#define ET_PHY_DUPLEX_STATUS 0x0080
-#define ET_PHY_LSTATUS 0x0040
-#define ET_PHY_AUTONEG_ENABLE 0x0020
-
-/* MI Register 27: LED Control Reg 1(0x1B)
- * 15-14: reserved
- * 13-12: led_dup_indicate
- * 11-10: led_10baseT
- * 9-8: led_collision
- * 7-4: reserved
- * 3-2: pulse_dur
- * 1: pulse_stretch1
- * 0: pulse_stretch0
- */
-
-/* MI Register 28: LED Control Reg 2(0x1C)
- * 15-12: led_link
- * 11-8: led_tx_rx
- * 7-4: led_100BaseTX
- * 3-0: led_1000BaseT
- */
-#define ET_LED2_LED_LINK 0xF000
-#define ET_LED2_LED_TXRX 0x0F00
-#define ET_LED2_LED_100TX 0x00F0
-#define ET_LED2_LED_1000T 0x000F
-
-/* defines for LED control reg 2 values */
-#define LED_VAL_1000BT 0x0
-#define LED_VAL_100BTX 0x1
-#define LED_VAL_10BT 0x2
-#define LED_VAL_1000BT_100BTX 0x3 /* 1000BT on, 100BTX blink */
-#define LED_VAL_LINKON 0x4
-#define LED_VAL_TX 0x5
-#define LED_VAL_RX 0x6
-#define LED_VAL_TXRX 0x7 /* TX or RX */
-#define LED_VAL_DUPLEXFULL 0x8
-#define LED_VAL_COLLISION 0x9
-#define LED_VAL_LINKON_ACTIVE 0xA /* Link on, activity blink */
-#define LED_VAL_LINKON_RECV 0xB /* Link on, receive blink */
-#define LED_VAL_DUPLEXFULL_COLLISION 0xC /* Duplex on, collision blink */
-#define LED_VAL_BLINK 0xD
-#define LED_VAL_ON 0xE
-#define LED_VAL_OFF 0xF
-
-#define LED_LINK_SHIFT 12
-#define LED_TXRX_SHIFT 8
-#define LED_100TX_SHIFT 4
-
-/* MI Register 29 - 31: Reserved Reg(0x1D - 0x1E) */
--
2.1.0
--
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