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gerrit-public.fairphone.software / kernel / msm-4.9 / e503e0662447ce2bd7c0a73c90395c78ebee494c / . / drivers / net / ethernet / broadcom / bnx2.c
blob: 41fa6af2fd86d013d6d2df750cd5c9c1069fef06 [file] [log] [blame]
/* bnx2.c: Broadcom NX2 network driver.
*
* Copyright (c) 2004-2011 Broadcom Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* Written by: Michael Chan (mchan@broadcom.com)
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/stringify.h>
#include <linux/kernel.h>
#include <linux/timer.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/dma-mapping.h>
#include <linux/bitops.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <linux/delay.h>
#include <asm/byteorder.h>
#include <asm/page.h>
#include <linux/time.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/if.h>
#include <linux/if_vlan.h>
#include <net/ip.h>
#include <net/tcp.h>
#include <net/checksum.h>
#include <linux/workqueue.h>
#include <linux/crc32.h>
#include <linux/prefetch.h>
#include <linux/cache.h>
#include <linux/firmware.h>
#include <linux/log2.h>
#include <linux/aer.h>
#if defined(CONFIG_CNIC) || defined(CONFIG_CNIC_MODULE)
#define BCM_CNIC 1
#include "cnic_if.h"
#endif
#include "bnx2.h"
#include "bnx2_fw.h"
#define DRV_MODULE_NAME "bnx2"
#define DRV_MODULE_VERSION "2.2.3"
#define DRV_MODULE_RELDATE "June 27, 2012"
#define FW_MIPS_FILE_06 "bnx2/bnx2-mips-06-6.2.3.fw"
#define FW_RV2P_FILE_06 "bnx2/bnx2-rv2p-06-6.0.15.fw"
#define FW_MIPS_FILE_09 "bnx2/bnx2-mips-09-6.2.1b.fw"
#define FW_RV2P_FILE_09_Ax "bnx2/bnx2-rv2p-09ax-6.0.17.fw"
#define FW_RV2P_FILE_09 "bnx2/bnx2-rv2p-09-6.0.17.fw"
#define RUN_AT(x) (jiffies + (x))
/* Time in jiffies before concluding the transmitter is hung. */
#define TX_TIMEOUT (5*HZ)
static char version[] =
"Broadcom NetXtreme II Gigabit Ethernet Driver " DRV_MODULE_NAME " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
MODULE_AUTHOR("Michael Chan <mchan@broadcom.com>");
MODULE_DESCRIPTION("Broadcom NetXtreme II BCM5706/5708/5709/5716 Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);
MODULE_FIRMWARE(FW_MIPS_FILE_06);
MODULE_FIRMWARE(FW_RV2P_FILE_06);
MODULE_FIRMWARE(FW_MIPS_FILE_09);
MODULE_FIRMWARE(FW_RV2P_FILE_09);
MODULE_FIRMWARE(FW_RV2P_FILE_09_Ax);
static int disable_msi = 0;
module_param(disable_msi, int, 0);
MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
typedef enum {
BCM5706 = 0,
NC370T,
NC370I,
BCM5706S,
NC370F,
BCM5708,
BCM5708S,
BCM5709,
BCM5709S,
BCM5716,
BCM5716S,
} board_t;
/* indexed by board_t, above */
static struct {
char *name;
} board_info[] = {
{ "Broadcom NetXtreme II BCM5706 1000Base-T" },
{ "HP NC370T Multifunction Gigabit Server Adapter" },
{ "HP NC370i Multifunction Gigabit Server Adapter" },
{ "Broadcom NetXtreme II BCM5706 1000Base-SX" },
{ "HP NC370F Multifunction Gigabit Server Adapter" },
{ "Broadcom NetXtreme II BCM5708 1000Base-T" },
{ "Broadcom NetXtreme II BCM5708 1000Base-SX" },
{ "Broadcom NetXtreme II BCM5709 1000Base-T" },
{ "Broadcom NetXtreme II BCM5709 1000Base-SX" },
{ "Broadcom NetXtreme II BCM5716 1000Base-T" },
{ "Broadcom NetXtreme II BCM5716 1000Base-SX" },
};
static DEFINE_PCI_DEVICE_TABLE(bnx2_pci_tbl) = {
{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706,
PCI_VENDOR_ID_HP, 0x3101, 0, 0, NC370T },
{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706,
PCI_VENDOR_ID_HP, 0x3106, 0, 0, NC370I },
{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5706 },
{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5708,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5708 },
{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706S,
PCI_VENDOR_ID_HP, 0x3102, 0, 0, NC370F },
{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706S,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5706S },
{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5708S,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5708S },
{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5709,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5709 },
{ PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5709S,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5709S },
{ PCI_VENDOR_ID_BROADCOM, 0x163b,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5716 },
{ PCI_VENDOR_ID_BROADCOM, 0x163c,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5716S },
{ 0, }
};
static const struct flash_spec flash_table[] =
{
#define BUFFERED_FLAGS (BNX2_NV_BUFFERED | BNX2_NV_TRANSLATE)
#define NONBUFFERED_FLAGS (BNX2_NV_WREN)
/* Slow EEPROM */
{0x00000000, 0x40830380, 0x009f0081, 0xa184a053, 0xaf000400,
BUFFERED_FLAGS, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE,
SEEPROM_BYTE_ADDR_MASK, SEEPROM_TOTAL_SIZE,
"EEPROM - slow"},
/* Expansion entry 0001 */
{0x08000002, 0x4b808201, 0x00050081, 0x03840253, 0xaf020406,
NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
"Entry 0001"},
/* Saifun SA25F010 (non-buffered flash) */
/* strap, cfg1, & write1 need updates */
{0x04000001, 0x47808201, 0x00050081, 0x03840253, 0xaf020406,
NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE*2,
"Non-buffered flash (128kB)"},
/* Saifun SA25F020 (non-buffered flash) */
/* strap, cfg1, & write1 need updates */
{0x0c000003, 0x4f808201, 0x00050081, 0x03840253, 0xaf020406,
NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE*4,
"Non-buffered flash (256kB)"},
/* Expansion entry 0100 */
{0x11000000, 0x53808201, 0x00050081, 0x03840253, 0xaf020406,
NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
"Entry 0100"},
/* Entry 0101: ST M45PE10 (non-buffered flash, TetonII B0) */
{0x19000002, 0x5b808201, 0x000500db, 0x03840253, 0xaf020406,
NONBUFFERED_FLAGS, ST_MICRO_FLASH_PAGE_BITS, ST_MICRO_FLASH_PAGE_SIZE,
ST_MICRO_FLASH_BYTE_ADDR_MASK, ST_MICRO_FLASH_BASE_TOTAL_SIZE*2,
"Entry 0101: ST M45PE10 (128kB non-bufferred)"},
/* Entry 0110: ST M45PE20 (non-buffered flash)*/
{0x15000001, 0x57808201, 0x000500db, 0x03840253, 0xaf020406,
NONBUFFERED_FLAGS, ST_MICRO_FLASH_PAGE_BITS, ST_MICRO_FLASH_PAGE_SIZE,
ST_MICRO_FLASH_BYTE_ADDR_MASK, ST_MICRO_FLASH_BASE_TOTAL_SIZE*4,
"Entry 0110: ST M45PE20 (256kB non-bufferred)"},
/* Saifun SA25F005 (non-buffered flash) */
/* strap, cfg1, & write1 need updates */
{0x1d000003, 0x5f808201, 0x00050081, 0x03840253, 0xaf020406,
NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE,
"Non-buffered flash (64kB)"},
/* Fast EEPROM */
{0x22000000, 0x62808380, 0x009f0081, 0xa184a053, 0xaf000400,
BUFFERED_FLAGS, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE,
SEEPROM_BYTE_ADDR_MASK, SEEPROM_TOTAL_SIZE,
"EEPROM - fast"},
/* Expansion entry 1001 */
{0x2a000002, 0x6b808201, 0x00050081, 0x03840253, 0xaf020406,
NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
"Entry 1001"},
/* Expansion entry 1010 */
{0x26000001, 0x67808201, 0x00050081, 0x03840253, 0xaf020406,
NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
"Entry 1010"},
/* ATMEL AT45DB011B (buffered flash) */
{0x2e000003, 0x6e808273, 0x00570081, 0x68848353, 0xaf000400,
BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,
BUFFERED_FLASH_BYTE_ADDR_MASK, BUFFERED_FLASH_TOTAL_SIZE,
"Buffered flash (128kB)"},
/* Expansion entry 1100 */
{0x33000000, 0x73808201, 0x00050081, 0x03840253, 0xaf020406,
NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
"Entry 1100"},
/* Expansion entry 1101 */
{0x3b000002, 0x7b808201, 0x00050081, 0x03840253, 0xaf020406,
NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
"Entry 1101"},
/* Ateml Expansion entry 1110 */
{0x37000001, 0x76808273, 0x00570081, 0x68848353, 0xaf000400,
BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,
BUFFERED_FLASH_BYTE_ADDR_MASK, 0,
"Entry 1110 (Atmel)"},
/* ATMEL AT45DB021B (buffered flash) */
{0x3f000003, 0x7e808273, 0x00570081, 0x68848353, 0xaf000400,
BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,
BUFFERED_FLASH_BYTE_ADDR_MASK, BUFFERED_FLASH_TOTAL_SIZE*2,
"Buffered flash (256kB)"},
};
static const struct flash_spec flash_5709 = {
.flags = BNX2_NV_BUFFERED,
.page_bits = BCM5709_FLASH_PAGE_BITS,
.page_size = BCM5709_FLASH_PAGE_SIZE,
.addr_mask = BCM5709_FLASH_BYTE_ADDR_MASK,
.total_size = BUFFERED_FLASH_TOTAL_SIZE*2,
.name = "5709 Buffered flash (256kB)",
};
MODULE_DEVICE_TABLE(pci, bnx2_pci_tbl);
static void bnx2_init_napi(struct bnx2 *bp);
static void bnx2_del_napi(struct bnx2 *bp);
static inline u32 bnx2_tx_avail(struct bnx2 *bp, struct bnx2_tx_ring_info *txr)
{
u32 diff;
/* Tell compiler to fetch tx_prod and tx_cons from memory. */
barrier();
/* The ring uses 256 indices for 255 entries, one of them
* needs to be skipped.
*/
diff = txr->tx_prod - txr->tx_cons;
if (unlikely(diff >= TX_DESC_CNT)) {
diff &= 0xffff;
if (diff == TX_DESC_CNT)
diff = MAX_TX_DESC_CNT;
}
return bp->tx_ring_size - diff;
}
static u32
bnx2_reg_rd_ind(struct bnx2 *bp, u32 offset)
{
u32 val;
spin_lock_bh(&bp->indirect_lock);
BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, offset);
val = BNX2_RD(bp, BNX2_PCICFG_REG_WINDOW);
spin_unlock_bh(&bp->indirect_lock);
return val;
}
static void
bnx2_reg_wr_ind(struct bnx2 *bp, u32 offset, u32 val)
{
spin_lock_bh(&bp->indirect_lock);
BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, offset);
BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW, val);
spin_unlock_bh(&bp->indirect_lock);
}
static void
bnx2_shmem_wr(struct bnx2 *bp, u32 offset, u32 val)
{
bnx2_reg_wr_ind(bp, bp->shmem_base + offset, val);
}
static u32
bnx2_shmem_rd(struct bnx2 *bp, u32 offset)
{
return bnx2_reg_rd_ind(bp, bp->shmem_base + offset);
}
static void
bnx2_ctx_wr(struct bnx2 *bp, u32 cid_addr, u32 offset, u32 val)
{
offset += cid_addr;
spin_lock_bh(&bp->indirect_lock);
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
int i;
BNX2_WR(bp, BNX2_CTX_CTX_DATA, val);
BNX2_WR(bp, BNX2_CTX_CTX_CTRL,
offset | BNX2_CTX_CTX_CTRL_WRITE_REQ);
for (i = 0; i < 5; i++) {
val = BNX2_RD(bp, BNX2_CTX_CTX_CTRL);
if ((val & BNX2_CTX_CTX_CTRL_WRITE_REQ) == 0)
break;
udelay(5);
}
} else {
BNX2_WR(bp, BNX2_CTX_DATA_ADR, offset);
BNX2_WR(bp, BNX2_CTX_DATA, val);
}
spin_unlock_bh(&bp->indirect_lock);
}
#ifdef BCM_CNIC
static int
bnx2_drv_ctl(struct net_device *dev, struct drv_ctl_info *info)
{
struct bnx2 *bp = netdev_priv(dev);
struct drv_ctl_io *io = &info->data.io;
switch (info->cmd) {
case DRV_CTL_IO_WR_CMD:
bnx2_reg_wr_ind(bp, io->offset, io->data);
break;
case DRV_CTL_IO_RD_CMD:
io->data = bnx2_reg_rd_ind(bp, io->offset);
break;
case DRV_CTL_CTX_WR_CMD:
bnx2_ctx_wr(bp, io->cid_addr, io->offset, io->data);
break;
default:
return -EINVAL;
}
return 0;
}
static void bnx2_setup_cnic_irq_info(struct bnx2 *bp)
{
struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
int sb_id;
if (bp->flags & BNX2_FLAG_USING_MSIX) {
cp->drv_state |= CNIC_DRV_STATE_USING_MSIX;
bnapi->cnic_present = 0;
sb_id = bp->irq_nvecs;
cp->irq_arr[0].irq_flags |= CNIC_IRQ_FL_MSIX;
} else {
cp->drv_state &= ~CNIC_DRV_STATE_USING_MSIX;
bnapi->cnic_tag = bnapi->last_status_idx;
bnapi->cnic_present = 1;
sb_id = 0;
cp->irq_arr[0].irq_flags &= ~CNIC_IRQ_FL_MSIX;
}
cp->irq_arr[0].vector = bp->irq_tbl[sb_id].vector;
cp->irq_arr[0].status_blk = (void *)
((unsigned long) bnapi->status_blk.msi +
(BNX2_SBLK_MSIX_ALIGN_SIZE * sb_id));
cp->irq_arr[0].status_blk_num = sb_id;
cp->num_irq = 1;
}
static int bnx2_register_cnic(struct net_device *dev, struct cnic_ops *ops,
void *data)
{
struct bnx2 *bp = netdev_priv(dev);
struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
if (ops == NULL)
return -EINVAL;
if (cp->drv_state & CNIC_DRV_STATE_REGD)
return -EBUSY;
if (!bnx2_reg_rd_ind(bp, BNX2_FW_MAX_ISCSI_CONN))
return -ENODEV;
bp->cnic_data = data;
rcu_assign_pointer(bp->cnic_ops, ops);
cp->num_irq = 0;
cp->drv_state = CNIC_DRV_STATE_REGD;
bnx2_setup_cnic_irq_info(bp);
return 0;
}
static int bnx2_unregister_cnic(struct net_device *dev)
{
struct bnx2 *bp = netdev_priv(dev);
struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
mutex_lock(&bp->cnic_lock);
cp->drv_state = 0;
bnapi->cnic_present = 0;
RCU_INIT_POINTER(bp->cnic_ops, NULL);
mutex_unlock(&bp->cnic_lock);
synchronize_rcu();
return 0;
}
struct cnic_eth_dev *bnx2_cnic_probe(struct net_device *dev)
{
struct bnx2 *bp = netdev_priv(dev);
struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
if (!cp->max_iscsi_conn)
return NULL;
cp->drv_owner = THIS_MODULE;
cp->chip_id = bp->chip_id;
cp->pdev = bp->pdev;
cp->io_base = bp->regview;
cp->drv_ctl = bnx2_drv_ctl;
cp->drv_register_cnic = bnx2_register_cnic;
cp->drv_unregister_cnic = bnx2_unregister_cnic;
return cp;
}
EXPORT_SYMBOL(bnx2_cnic_probe);
static void
bnx2_cnic_stop(struct bnx2 *bp)
{
struct cnic_ops *c_ops;
struct cnic_ctl_info info;
mutex_lock(&bp->cnic_lock);
c_ops = rcu_dereference_protected(bp->cnic_ops,
lockdep_is_held(&bp->cnic_lock));
if (c_ops) {
info.cmd = CNIC_CTL_STOP_CMD;
c_ops->cnic_ctl(bp->cnic_data, &info);
}
mutex_unlock(&bp->cnic_lock);
}
static void
bnx2_cnic_start(struct bnx2 *bp)
{
struct cnic_ops *c_ops;
struct cnic_ctl_info info;
mutex_lock(&bp->cnic_lock);
c_ops = rcu_dereference_protected(bp->cnic_ops,
lockdep_is_held(&bp->cnic_lock));
if (c_ops) {
if (!(bp->flags & BNX2_FLAG_USING_MSIX)) {
struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
bnapi->cnic_tag = bnapi->last_status_idx;
}
info.cmd = CNIC_CTL_START_CMD;
c_ops->cnic_ctl(bp->cnic_data, &info);
}
mutex_unlock(&bp->cnic_lock);
}
#else
static void
bnx2_cnic_stop(struct bnx2 *bp)
{
}
static void
bnx2_cnic_start(struct bnx2 *bp)
{
}
#endif
static int
bnx2_read_phy(struct bnx2 *bp, u32 reg, u32 *val)
{
u32 val1;
int i, ret;
if (bp->phy_flags & BNX2_PHY_FLAG_INT_MODE_AUTO_POLLING) {
val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
val1 &= ~BNX2_EMAC_MDIO_MODE_AUTO_POLL;
BNX2_WR(bp, BNX2_EMAC_MDIO_MODE, val1);
BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
udelay(40);
}
val1 = (bp->phy_addr << 21) | (reg << 16) |
BNX2_EMAC_MDIO_COMM_COMMAND_READ | BNX2_EMAC_MDIO_COMM_DISEXT |
BNX2_EMAC_MDIO_COMM_START_BUSY;
BNX2_WR(bp, BNX2_EMAC_MDIO_COMM, val1);
for (i = 0; i < 50; i++) {
udelay(10);
val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_COMM);
if (!(val1 & BNX2_EMAC_MDIO_COMM_START_BUSY)) {
udelay(5);
val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_COMM);
val1 &= BNX2_EMAC_MDIO_COMM_DATA;
break;
}
}
if (val1 & BNX2_EMAC_MDIO_COMM_START_BUSY) {
*val = 0x0;
ret = -EBUSY;
}
else {
*val = val1;
ret = 0;
}
if (bp->phy_flags & BNX2_PHY_FLAG_INT_MODE_AUTO_POLLING) {
val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
val1 |= BNX2_EMAC_MDIO_MODE_AUTO_POLL;
BNX2_WR(bp, BNX2_EMAC_MDIO_MODE, val1);
BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
udelay(40);
}
return ret;
}
static int
bnx2_write_phy(struct bnx2 *bp, u32 reg, u32 val)
{
u32 val1;
int i, ret;
if (bp->phy_flags & BNX2_PHY_FLAG_INT_MODE_AUTO_POLLING) {
val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
val1 &= ~BNX2_EMAC_MDIO_MODE_AUTO_POLL;
BNX2_WR(bp, BNX2_EMAC_MDIO_MODE, val1);
BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
udelay(40);
}
val1 = (bp->phy_addr << 21) | (reg << 16) | val |
BNX2_EMAC_MDIO_COMM_COMMAND_WRITE |
BNX2_EMAC_MDIO_COMM_START_BUSY | BNX2_EMAC_MDIO_COMM_DISEXT;
BNX2_WR(bp, BNX2_EMAC_MDIO_COMM, val1);
for (i = 0; i < 50; i++) {
udelay(10);
val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_COMM);
if (!(val1 & BNX2_EMAC_MDIO_COMM_START_BUSY)) {
udelay(5);
break;
}
}
if (val1 & BNX2_EMAC_MDIO_COMM_START_BUSY)
ret = -EBUSY;
else
ret = 0;
if (bp->phy_flags & BNX2_PHY_FLAG_INT_MODE_AUTO_POLLING) {
val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
val1 |= BNX2_EMAC_MDIO_MODE_AUTO_POLL;
BNX2_WR(bp, BNX2_EMAC_MDIO_MODE, val1);
BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);
udelay(40);
}
return ret;
}
static void
bnx2_disable_int(struct bnx2 *bp)
{
int i;
struct bnx2_napi *bnapi;
for (i = 0; i < bp->irq_nvecs; i++) {
bnapi = &bp->bnx2_napi[i];
BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
}
BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD);
}
static void
bnx2_enable_int(struct bnx2 *bp)
{
int i;
struct bnx2_napi *bnapi;
for (i = 0; i < bp->irq_nvecs; i++) {
bnapi = &bp->bnx2_napi[i];
BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
BNX2_PCICFG_INT_ACK_CMD_MASK_INT |
bnapi->last_status_idx);
BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
bnapi->last_status_idx);
}
BNX2_WR(bp, BNX2_HC_COMMAND, bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW);
}
static void
bnx2_disable_int_sync(struct bnx2 *bp)
{
int i;
atomic_inc(&bp->intr_sem);
if (!netif_running(bp->dev))
return;
bnx2_disable_int(bp);
for (i = 0; i < bp->irq_nvecs; i++)
synchronize_irq(bp->irq_tbl[i].vector);
}
static void
bnx2_napi_disable(struct bnx2 *bp)
{
int i;
for (i = 0; i < bp->irq_nvecs; i++)
napi_disable(&bp->bnx2_napi[i].napi);
}
static void
bnx2_napi_enable(struct bnx2 *bp)
{
int i;
for (i = 0; i < bp->irq_nvecs; i++)
napi_enable(&bp->bnx2_napi[i].napi);
}
static void
bnx2_netif_stop(struct bnx2 *bp, bool stop_cnic)
{
if (stop_cnic)
bnx2_cnic_stop(bp);
if (netif_running(bp->dev)) {
bnx2_napi_disable(bp);
netif_tx_disable(bp->dev);
}
bnx2_disable_int_sync(bp);
netif_carrier_off(bp->dev); /* prevent tx timeout */
}
static void
bnx2_netif_start(struct bnx2 *bp, bool start_cnic)
{
if (atomic_dec_and_test(&bp->intr_sem)) {
if (netif_running(bp->dev)) {
netif_tx_wake_all_queues(bp->dev);
spin_lock_bh(&bp->phy_lock);
if (bp->link_up)
netif_carrier_on(bp->dev);
spin_unlock_bh(&bp->phy_lock);
bnx2_napi_enable(bp);
bnx2_enable_int(bp);
if (start_cnic)
bnx2_cnic_start(bp);
}
}
}
static void
bnx2_free_tx_mem(struct bnx2 *bp)
{
int i;
for (i = 0; i < bp->num_tx_rings; i++) {
struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
if (txr->tx_desc_ring) {
dma_free_coherent(&bp->pdev->dev, TXBD_RING_SIZE,
txr->tx_desc_ring,
txr->tx_desc_mapping);
txr->tx_desc_ring = NULL;
}
kfree(txr->tx_buf_ring);
txr->tx_buf_ring = NULL;
}
}
static void
bnx2_free_rx_mem(struct bnx2 *bp)
{
int i;
for (i = 0; i < bp->num_rx_rings; i++) {
struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
int j;
for (j = 0; j < bp->rx_max_ring; j++) {
if (rxr->rx_desc_ring[j])
dma_free_coherent(&bp->pdev->dev, RXBD_RING_SIZE,
rxr->rx_desc_ring[j],
rxr->rx_desc_mapping[j]);
rxr->rx_desc_ring[j] = NULL;
}
vfree(rxr->rx_buf_ring);
rxr->rx_buf_ring = NULL;
for (j = 0; j < bp->rx_max_pg_ring; j++) {
if (rxr->rx_pg_desc_ring[j])
dma_free_coherent(&bp->pdev->dev, RXBD_RING_SIZE,
rxr->rx_pg_desc_ring[j],
rxr->rx_pg_desc_mapping[j]);
rxr->rx_pg_desc_ring[j] = NULL;
}
vfree(rxr->rx_pg_ring);
rxr->rx_pg_ring = NULL;
}
}
static int
bnx2_alloc_tx_mem(struct bnx2 *bp)
{
int i;
for (i = 0; i < bp->num_tx_rings; i++) {
struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
txr->tx_buf_ring = kzalloc(SW_TXBD_RING_SIZE, GFP_KERNEL);
if (txr->tx_buf_ring == NULL)
return -ENOMEM;
txr->tx_desc_ring =
dma_alloc_coherent(&bp->pdev->dev, TXBD_RING_SIZE,
&txr->tx_desc_mapping, GFP_KERNEL);
if (txr->tx_desc_ring == NULL)
return -ENOMEM;
}
return 0;
}
static int
bnx2_alloc_rx_mem(struct bnx2 *bp)
{
int i;
for (i = 0; i < bp->num_rx_rings; i++) {
struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
int j;
rxr->rx_buf_ring =
vzalloc(SW_RXBD_RING_SIZE * bp->rx_max_ring);
if (rxr->rx_buf_ring == NULL)
return -ENOMEM;
for (j = 0; j < bp->rx_max_ring; j++) {
rxr->rx_desc_ring[j] =
dma_alloc_coherent(&bp->pdev->dev,
RXBD_RING_SIZE,
&rxr->rx_desc_mapping[j],
GFP_KERNEL);
if (rxr->rx_desc_ring[j] == NULL)
return -ENOMEM;
}
if (bp->rx_pg_ring_size) {
rxr->rx_pg_ring = vzalloc(SW_RXPG_RING_SIZE *
bp->rx_max_pg_ring);
if (rxr->rx_pg_ring == NULL)
return -ENOMEM;
}
for (j = 0; j < bp->rx_max_pg_ring; j++) {
rxr->rx_pg_desc_ring[j] =
dma_alloc_coherent(&bp->pdev->dev,
RXBD_RING_SIZE,
&rxr->rx_pg_desc_mapping[j],
GFP_KERNEL);
if (rxr->rx_pg_desc_ring[j] == NULL)
return -ENOMEM;
}
}
return 0;
}
static void
bnx2_free_mem(struct bnx2 *bp)
{
int i;
struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
bnx2_free_tx_mem(bp);
bnx2_free_rx_mem(bp);
for (i = 0; i < bp->ctx_pages; i++) {
if (bp->ctx_blk[i]) {
dma_free_coherent(&bp->pdev->dev, BCM_PAGE_SIZE,
bp->ctx_blk[i],
bp->ctx_blk_mapping[i]);
bp->ctx_blk[i] = NULL;
}
}
if (bnapi->status_blk.msi) {
dma_free_coherent(&bp->pdev->dev, bp->status_stats_size,
bnapi->status_blk.msi,
bp->status_blk_mapping);
bnapi->status_blk.msi = NULL;
bp->stats_blk = NULL;
}
}
static int
bnx2_alloc_mem(struct bnx2 *bp)
{
int i, status_blk_size, err;
struct bnx2_napi *bnapi;
void *status_blk;
/* Combine status and statistics blocks into one allocation. */
status_blk_size = L1_CACHE_ALIGN(sizeof(struct status_block));
if (bp->flags & BNX2_FLAG_MSIX_CAP)
status_blk_size = L1_CACHE_ALIGN(BNX2_MAX_MSIX_HW_VEC *
BNX2_SBLK_MSIX_ALIGN_SIZE);
bp->status_stats_size = status_blk_size +
sizeof(struct statistics_block);
status_blk = dma_alloc_coherent(&bp->pdev->dev, bp->status_stats_size,
&bp->status_blk_mapping, GFP_KERNEL);
if (status_blk == NULL)
goto alloc_mem_err;
memset(status_blk, 0, bp->status_stats_size);
bnapi = &bp->bnx2_napi[0];
bnapi->status_blk.msi = status_blk;
bnapi->hw_tx_cons_ptr =
&bnapi->status_blk.msi->status_tx_quick_consumer_index0;
bnapi->hw_rx_cons_ptr =
&bnapi->status_blk.msi->status_rx_quick_consumer_index0;
if (bp->flags & BNX2_FLAG_MSIX_CAP) {
for (i = 1; i < bp->irq_nvecs; i++) {
struct status_block_msix *sblk;
bnapi = &bp->bnx2_napi[i];
sblk = (status_blk + BNX2_SBLK_MSIX_ALIGN_SIZE * i);
bnapi->status_blk.msix = sblk;
bnapi->hw_tx_cons_ptr =
&sblk->status_tx_quick_consumer_index;
bnapi->hw_rx_cons_ptr =
&sblk->status_rx_quick_consumer_index;
bnapi->int_num = i << 24;
}
}
bp->stats_blk = status_blk + status_blk_size;
bp->stats_blk_mapping = bp->status_blk_mapping + status_blk_size;
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
bp->ctx_pages = 0x2000 / BCM_PAGE_SIZE;
if (bp->ctx_pages == 0)
bp->ctx_pages = 1;
for (i = 0; i < bp->ctx_pages; i++) {
bp->ctx_blk[i] = dma_alloc_coherent(&bp->pdev->dev,
BCM_PAGE_SIZE,
&bp->ctx_blk_mapping[i],
GFP_KERNEL);
if (bp->ctx_blk[i] == NULL)
goto alloc_mem_err;
}
}
err = bnx2_alloc_rx_mem(bp);
if (err)
goto alloc_mem_err;
err = bnx2_alloc_tx_mem(bp);
if (err)
goto alloc_mem_err;
return 0;
alloc_mem_err:
bnx2_free_mem(bp);
return -ENOMEM;
}
static void
bnx2_report_fw_link(struct bnx2 *bp)
{
u32 fw_link_status = 0;
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
return;
if (bp->link_up) {
u32 bmsr;
switch (bp->line_speed) {
case SPEED_10:
if (bp->duplex == DUPLEX_HALF)
fw_link_status = BNX2_LINK_STATUS_10HALF;
else
fw_link_status = BNX2_LINK_STATUS_10FULL;
break;
case SPEED_100:
if (bp->duplex == DUPLEX_HALF)
fw_link_status = BNX2_LINK_STATUS_100HALF;
else
fw_link_status = BNX2_LINK_STATUS_100FULL;
break;
case SPEED_1000:
if (bp->duplex == DUPLEX_HALF)
fw_link_status = BNX2_LINK_STATUS_1000HALF;
else
fw_link_status = BNX2_LINK_STATUS_1000FULL;
break;
case SPEED_2500:
if (bp->duplex == DUPLEX_HALF)
fw_link_status = BNX2_LINK_STATUS_2500HALF;
else
fw_link_status = BNX2_LINK_STATUS_2500FULL;
break;
}
fw_link_status |= BNX2_LINK_STATUS_LINK_UP;
if (bp->autoneg) {
fw_link_status |= BNX2_LINK_STATUS_AN_ENABLED;
bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
if (!(bmsr & BMSR_ANEGCOMPLETE) ||
bp->phy_flags & BNX2_PHY_FLAG_PARALLEL_DETECT)
fw_link_status |= BNX2_LINK_STATUS_PARALLEL_DET;
else
fw_link_status |= BNX2_LINK_STATUS_AN_COMPLETE;
}
}
else
fw_link_status = BNX2_LINK_STATUS_LINK_DOWN;
bnx2_shmem_wr(bp, BNX2_LINK_STATUS, fw_link_status);
}
static char *
bnx2_xceiver_str(struct bnx2 *bp)
{
return (bp->phy_port == PORT_FIBRE) ? "SerDes" :
((bp->phy_flags & BNX2_PHY_FLAG_SERDES) ? "Remote Copper" :
"Copper");
}
static void
bnx2_report_link(struct bnx2 *bp)
{
if (bp->link_up) {
netif_carrier_on(bp->dev);
netdev_info(bp->dev, "NIC %s Link is Up, %d Mbps %s duplex",
bnx2_xceiver_str(bp),
bp->line_speed,
bp->duplex == DUPLEX_FULL ? "full" : "half");
if (bp->flow_ctrl) {
if (bp->flow_ctrl & FLOW_CTRL_RX) {
pr_cont(", receive ");
if (bp->flow_ctrl & FLOW_CTRL_TX)
pr_cont("& transmit ");
}
else {
pr_cont(", transmit ");
}
pr_cont("flow control ON");
}
pr_cont("\n");
} else {
netif_carrier_off(bp->dev);
netdev_err(bp->dev, "NIC %s Link is Down\n",
bnx2_xceiver_str(bp));
}
bnx2_report_fw_link(bp);
}
static void
bnx2_resolve_flow_ctrl(struct bnx2 *bp)
{
u32 local_adv, remote_adv;
bp->flow_ctrl = 0;
if ((bp->autoneg & (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) !=
(AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) {
if (bp->duplex == DUPLEX_FULL) {
bp->flow_ctrl = bp->req_flow_ctrl;
}
return;
}
if (bp->duplex != DUPLEX_FULL) {
return;
}
if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
(CHIP_NUM(bp) == CHIP_NUM_5708)) {
u32 val;
bnx2_read_phy(bp, BCM5708S_1000X_STAT1, &val);
if (val & BCM5708S_1000X_STAT1_TX_PAUSE)
bp->flow_ctrl |= FLOW_CTRL_TX;
if (val & BCM5708S_1000X_STAT1_RX_PAUSE)
bp->flow_ctrl |= FLOW_CTRL_RX;
return;
}
bnx2_read_phy(bp, bp->mii_adv, &local_adv);
bnx2_read_phy(bp, bp->mii_lpa, &remote_adv);
if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
u32 new_local_adv = 0;
u32 new_remote_adv = 0;
if (local_adv & ADVERTISE_1000XPAUSE)
new_local_adv |= ADVERTISE_PAUSE_CAP;
if (local_adv & ADVERTISE_1000XPSE_ASYM)
new_local_adv |= ADVERTISE_PAUSE_ASYM;
if (remote_adv & ADVERTISE_1000XPAUSE)
new_remote_adv |= ADVERTISE_PAUSE_CAP;
if (remote_adv & ADVERTISE_1000XPSE_ASYM)
new_remote_adv |= ADVERTISE_PAUSE_ASYM;
local_adv = new_local_adv;
remote_adv = new_remote_adv;
}
/* See Table 28B-3 of 802.3ab-1999 spec. */
if (local_adv & ADVERTISE_PAUSE_CAP) {
if(local_adv & ADVERTISE_PAUSE_ASYM) {
if (remote_adv & ADVERTISE_PAUSE_CAP) {
bp->flow_ctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
}
else if (remote_adv & ADVERTISE_PAUSE_ASYM) {
bp->flow_ctrl = FLOW_CTRL_RX;
}
}
else {
if (remote_adv & ADVERTISE_PAUSE_CAP) {
bp->flow_ctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
}
}
}
else if (local_adv & ADVERTISE_PAUSE_ASYM) {
if ((remote_adv & ADVERTISE_PAUSE_CAP) &&
(remote_adv & ADVERTISE_PAUSE_ASYM)) {
bp->flow_ctrl = FLOW_CTRL_TX;
}
}
}
static int
bnx2_5709s_linkup(struct bnx2 *bp)
{
u32 val, speed;
bp->link_up = 1;
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_GP_STATUS);
bnx2_read_phy(bp, MII_BNX2_GP_TOP_AN_STATUS1, &val);
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
if ((bp->autoneg & AUTONEG_SPEED) == 0) {
bp->line_speed = bp->req_line_speed;
bp->duplex = bp->req_duplex;
return 0;
}
speed = val & MII_BNX2_GP_TOP_AN_SPEED_MSK;
switch (speed) {
case MII_BNX2_GP_TOP_AN_SPEED_10:
bp->line_speed = SPEED_10;
break;
case MII_BNX2_GP_TOP_AN_SPEED_100:
bp->line_speed = SPEED_100;
break;
case MII_BNX2_GP_TOP_AN_SPEED_1G:
case MII_BNX2_GP_TOP_AN_SPEED_1GKV:
bp->line_speed = SPEED_1000;
break;
case MII_BNX2_GP_TOP_AN_SPEED_2_5G:
bp->line_speed = SPEED_2500;
break;
}
if (val & MII_BNX2_GP_TOP_AN_FD)
bp->duplex = DUPLEX_FULL;
else
bp->duplex = DUPLEX_HALF;
return 0;
}
static int
bnx2_5708s_linkup(struct bnx2 *bp)
{
u32 val;
bp->link_up = 1;
bnx2_read_phy(bp, BCM5708S_1000X_STAT1, &val);
switch (val & BCM5708S_1000X_STAT1_SPEED_MASK) {
case BCM5708S_1000X_STAT1_SPEED_10:
bp->line_speed = SPEED_10;
break;
case BCM5708S_1000X_STAT1_SPEED_100:
bp->line_speed = SPEED_100;
break;
case BCM5708S_1000X_STAT1_SPEED_1G:
bp->line_speed = SPEED_1000;
break;
case BCM5708S_1000X_STAT1_SPEED_2G5:
bp->line_speed = SPEED_2500;
break;
}
if (val & BCM5708S_1000X_STAT1_FD)
bp->duplex = DUPLEX_FULL;
else
bp->duplex = DUPLEX_HALF;
return 0;
}
static int
bnx2_5706s_linkup(struct bnx2 *bp)
{
u32 bmcr, local_adv, remote_adv, common;
bp->link_up = 1;
bp->line_speed = SPEED_1000;
bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
if (bmcr & BMCR_FULLDPLX) {
bp->duplex = DUPLEX_FULL;
}
else {
bp->duplex = DUPLEX_HALF;
}
if (!(bmcr & BMCR_ANENABLE)) {
return 0;
}
bnx2_read_phy(bp, bp->mii_adv, &local_adv);
bnx2_read_phy(bp, bp->mii_lpa, &remote_adv);
common = local_adv & remote_adv;
if (common & (ADVERTISE_1000XHALF | ADVERTISE_1000XFULL)) {
if (common & ADVERTISE_1000XFULL) {
bp->duplex = DUPLEX_FULL;
}
else {
bp->duplex = DUPLEX_HALF;
}
}
return 0;
}
static int
bnx2_copper_linkup(struct bnx2 *bp)
{
u32 bmcr;
bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
if (bmcr & BMCR_ANENABLE) {
u32 local_adv, remote_adv, common;
bnx2_read_phy(bp, MII_CTRL1000, &local_adv);
bnx2_read_phy(bp, MII_STAT1000, &remote_adv);
common = local_adv & (remote_adv >> 2);
if (common & ADVERTISE_1000FULL) {
bp->line_speed = SPEED_1000;
bp->duplex = DUPLEX_FULL;
}
else if (common & ADVERTISE_1000HALF) {
bp->line_speed = SPEED_1000;
bp->duplex = DUPLEX_HALF;
}
else {
bnx2_read_phy(bp, bp->mii_adv, &local_adv);
bnx2_read_phy(bp, bp->mii_lpa, &remote_adv);
common = local_adv & remote_adv;
if (common & ADVERTISE_100FULL) {
bp->line_speed = SPEED_100;
bp->duplex = DUPLEX_FULL;
}
else if (common & ADVERTISE_100HALF) {
bp->line_speed = SPEED_100;
bp->duplex = DUPLEX_HALF;
}
else if (common & ADVERTISE_10FULL) {
bp->line_speed = SPEED_10;
bp->duplex = DUPLEX_FULL;
}
else if (common & ADVERTISE_10HALF) {
bp->line_speed = SPEED_10;
bp->duplex = DUPLEX_HALF;
}
else {
bp->line_speed = 0;
bp->link_up = 0;
}
}
}
else {
if (bmcr & BMCR_SPEED100) {
bp->line_speed = SPEED_100;
}
else {
bp->line_speed = SPEED_10;
}
if (bmcr & BMCR_FULLDPLX) {
bp->duplex = DUPLEX_FULL;
}
else {
bp->duplex = DUPLEX_HALF;
}
}
return 0;
}
static void
bnx2_init_rx_context(struct bnx2 *bp, u32 cid)
{
u32 val, rx_cid_addr = GET_CID_ADDR(cid);
val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE;
val |= BNX2_L2CTX_CTX_TYPE_SIZE_L2;
val |= 0x02 << 8;
if (bp->flow_ctrl & FLOW_CTRL_TX)
val |= BNX2_L2CTX_FLOW_CTRL_ENABLE;
bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_CTX_TYPE, val);
}
static void
bnx2_init_all_rx_contexts(struct bnx2 *bp)
{
int i;
u32 cid;
for (i = 0, cid = RX_CID; i < bp->num_rx_rings; i++, cid++) {
if (i == 1)
cid = RX_RSS_CID;
bnx2_init_rx_context(bp, cid);
}
}
static void
bnx2_set_mac_link(struct bnx2 *bp)
{
u32 val;
BNX2_WR(bp, BNX2_EMAC_TX_LENGTHS, 0x2620);
if (bp->link_up && (bp->line_speed == SPEED_1000) &&
(bp->duplex == DUPLEX_HALF)) {
BNX2_WR(bp, BNX2_EMAC_TX_LENGTHS, 0x26ff);
}
/* Configure the EMAC mode register. */
val = BNX2_RD(bp, BNX2_EMAC_MODE);
val &= ~(BNX2_EMAC_MODE_PORT | BNX2_EMAC_MODE_HALF_DUPLEX |
BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK |
BNX2_EMAC_MODE_25G_MODE);
if (bp->link_up) {
switch (bp->line_speed) {
case SPEED_10:
if (CHIP_NUM(bp) != CHIP_NUM_5706) {
val |= BNX2_EMAC_MODE_PORT_MII_10M;
break;
}
/* fall through */
case SPEED_100:
val |= BNX2_EMAC_MODE_PORT_MII;
break;
case SPEED_2500:
val |= BNX2_EMAC_MODE_25G_MODE;
/* fall through */
case SPEED_1000:
val |= BNX2_EMAC_MODE_PORT_GMII;
break;
}
}
else {
val |= BNX2_EMAC_MODE_PORT_GMII;
}
/* Set the MAC to operate in the appropriate duplex mode. */
if (bp->duplex == DUPLEX_HALF)
val |= BNX2_EMAC_MODE_HALF_DUPLEX;
BNX2_WR(bp, BNX2_EMAC_MODE, val);
/* Enable/disable rx PAUSE. */
bp->rx_mode &= ~BNX2_EMAC_RX_MODE_FLOW_EN;
if (bp->flow_ctrl & FLOW_CTRL_RX)
bp->rx_mode |= BNX2_EMAC_RX_MODE_FLOW_EN;
BNX2_WR(bp, BNX2_EMAC_RX_MODE, bp->rx_mode);
/* Enable/disable tx PAUSE. */
val = BNX2_RD(bp, BNX2_EMAC_TX_MODE);
val &= ~BNX2_EMAC_TX_MODE_FLOW_EN;
if (bp->flow_ctrl & FLOW_CTRL_TX)
val |= BNX2_EMAC_TX_MODE_FLOW_EN;
BNX2_WR(bp, BNX2_EMAC_TX_MODE, val);
/* Acknowledge the interrupt. */
BNX2_WR(bp, BNX2_EMAC_STATUS, BNX2_EMAC_STATUS_LINK_CHANGE);
bnx2_init_all_rx_contexts(bp);
}
static void
bnx2_enable_bmsr1(struct bnx2 *bp)
{
if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
(CHIP_NUM(bp) == CHIP_NUM_5709))
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
MII_BNX2_BLK_ADDR_GP_STATUS);
}
static void
bnx2_disable_bmsr1(struct bnx2 *bp)
{
if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
(CHIP_NUM(bp) == CHIP_NUM_5709))
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
}
static int
bnx2_test_and_enable_2g5(struct bnx2 *bp)
{
u32 up1;
int ret = 1;
if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
return 0;
if (bp->autoneg & AUTONEG_SPEED)
bp->advertising |= ADVERTISED_2500baseX_Full;
if (CHIP_NUM(bp) == CHIP_NUM_5709)
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_OVER1G);
bnx2_read_phy(bp, bp->mii_up1, &up1);
if (!(up1 & BCM5708S_UP1_2G5)) {
up1 |= BCM5708S_UP1_2G5;
bnx2_write_phy(bp, bp->mii_up1, up1);
ret = 0;
}
if (CHIP_NUM(bp) == CHIP_NUM_5709)
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
return ret;
}
static int
bnx2_test_and_disable_2g5(struct bnx2 *bp)
{
u32 up1;
int ret = 0;
if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
return 0;
if (CHIP_NUM(bp) == CHIP_NUM_5709)
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_OVER1G);
bnx2_read_phy(bp, bp->mii_up1, &up1);
if (up1 & BCM5708S_UP1_2G5) {
up1 &= ~BCM5708S_UP1_2G5;
bnx2_write_phy(bp, bp->mii_up1, up1);
ret = 1;
}
if (CHIP_NUM(bp) == CHIP_NUM_5709)
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
return ret;
}
static void
bnx2_enable_forced_2g5(struct bnx2 *bp)
{
u32 uninitialized_var(bmcr);
int err;
if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
return;
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
u32 val;
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
MII_BNX2_BLK_ADDR_SERDES_DIG);
if (!bnx2_read_phy(bp, MII_BNX2_SERDES_DIG_MISC1, &val)) {
val &= ~MII_BNX2_SD_MISC1_FORCE_MSK;
val |= MII_BNX2_SD_MISC1_FORCE |
MII_BNX2_SD_MISC1_FORCE_2_5G;
bnx2_write_phy(bp, MII_BNX2_SERDES_DIG_MISC1, val);
}
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
} else if (CHIP_NUM(bp) == CHIP_NUM_5708) {
err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
if (!err)
bmcr |= BCM5708S_BMCR_FORCE_2500;
} else {
return;
}
if (err)
return;
if (bp->autoneg & AUTONEG_SPEED) {
bmcr &= ~BMCR_ANENABLE;
if (bp->req_duplex == DUPLEX_FULL)
bmcr |= BMCR_FULLDPLX;
}
bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
}
static void
bnx2_disable_forced_2g5(struct bnx2 *bp)
{
u32 uninitialized_var(bmcr);
int err;
if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
return;
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
u32 val;
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
MII_BNX2_BLK_ADDR_SERDES_DIG);
if (!bnx2_read_phy(bp, MII_BNX2_SERDES_DIG_MISC1, &val)) {
val &= ~MII_BNX2_SD_MISC1_FORCE;
bnx2_write_phy(bp, MII_BNX2_SERDES_DIG_MISC1, val);
}
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,
MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
} else if (CHIP_NUM(bp) == CHIP_NUM_5708) {
err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
if (!err)
bmcr &= ~BCM5708S_BMCR_FORCE_2500;
} else {
return;
}
if (err)
return;
if (bp->autoneg & AUTONEG_SPEED)
bmcr |= BMCR_SPEED1000 | BMCR_ANENABLE | BMCR_ANRESTART;
bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
}
static void
bnx2_5706s_force_link_dn(struct bnx2 *bp, int start)
{
u32 val;
bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS, MII_EXPAND_SERDES_CTL);
bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &val);
if (start)
bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val & 0xff0f);
else
bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val | 0xc0);
}
static int
bnx2_set_link(struct bnx2 *bp)
{
u32 bmsr;
u8 link_up;
if (bp->loopback == MAC_LOOPBACK || bp->loopback == PHY_LOOPBACK) {
bp->link_up = 1;
return 0;
}
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
return 0;
link_up = bp->link_up;
bnx2_enable_bmsr1(bp);
bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);
bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);
bnx2_disable_bmsr1(bp);
if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
(CHIP_NUM(bp) == CHIP_NUM_5706)) {
u32 val, an_dbg;
if (bp->phy_flags & BNX2_PHY_FLAG_FORCED_DOWN) {
bnx2_5706s_force_link_dn(bp, 0);
bp->phy_flags &= ~BNX2_PHY_FLAG_FORCED_DOWN;
}
val = BNX2_RD(bp, BNX2_EMAC_STATUS);
bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG);
bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
if ((val & BNX2_EMAC_STATUS_LINK) &&
!(an_dbg & MISC_SHDW_AN_DBG_NOSYNC))
bmsr |= BMSR_LSTATUS;
else
bmsr &= ~BMSR_LSTATUS;
}
if (bmsr & BMSR_LSTATUS) {
bp->link_up = 1;
if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
if (CHIP_NUM(bp) == CHIP_NUM_5706)
bnx2_5706s_linkup(bp);
else if (CHIP_NUM(bp) == CHIP_NUM_5708)
bnx2_5708s_linkup(bp);
else if (CHIP_NUM(bp) == CHIP_NUM_5709)
bnx2_5709s_linkup(bp);
}
else {
bnx2_copper_linkup(bp);
}
bnx2_resolve_flow_ctrl(bp);
}
else {
if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
(bp->autoneg & AUTONEG_SPEED))
bnx2_disable_forced_2g5(bp);
if (bp->phy_flags & BNX2_PHY_FLAG_PARALLEL_DETECT) {
u32 bmcr;
bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
bmcr |= BMCR_ANENABLE;
bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
bp->phy_flags &= ~BNX2_PHY_FLAG_PARALLEL_DETECT;
}
bp->link_up = 0;
}
if (bp->link_up != link_up) {
bnx2_report_link(bp);
}
bnx2_set_mac_link(bp);
return 0;
}
static int
bnx2_reset_phy(struct bnx2 *bp)
{
int i;
u32 reg;
bnx2_write_phy(bp, bp->mii_bmcr, BMCR_RESET);
#define PHY_RESET_MAX_WAIT 100
for (i = 0; i < PHY_RESET_MAX_WAIT; i++) {
udelay(10);
bnx2_read_phy(bp, bp->mii_bmcr, &reg);
if (!(reg & BMCR_RESET)) {
udelay(20);
break;
}
}
if (i == PHY_RESET_MAX_WAIT) {
return -EBUSY;
}
return 0;
}
static u32
bnx2_phy_get_pause_adv(struct bnx2 *bp)
{
u32 adv = 0;
if ((bp->req_flow_ctrl & (FLOW_CTRL_RX | FLOW_CTRL_TX)) ==
(FLOW_CTRL_RX | FLOW_CTRL_TX)) {
if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
adv = ADVERTISE_1000XPAUSE;
}
else {
adv = ADVERTISE_PAUSE_CAP;
}
}
else if (bp->req_flow_ctrl & FLOW_CTRL_TX) {
if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
adv = ADVERTISE_1000XPSE_ASYM;
}
else {
adv = ADVERTISE_PAUSE_ASYM;
}
}
else if (bp->req_flow_ctrl & FLOW_CTRL_RX) {
if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
adv = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
}
else {
adv = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
}
}
return adv;
}
static int bnx2_fw_sync(struct bnx2 *, u32, int, int);
static int
bnx2_setup_remote_phy(struct bnx2 *bp, u8 port)
__releases(&bp->phy_lock)
__acquires(&bp->phy_lock)
{
u32 speed_arg = 0, pause_adv;
pause_adv = bnx2_phy_get_pause_adv(bp);
if (bp->autoneg & AUTONEG_SPEED) {
speed_arg |= BNX2_NETLINK_SET_LINK_ENABLE_AUTONEG;
if (bp->advertising & ADVERTISED_10baseT_Half)
speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_10HALF;
if (bp->advertising & ADVERTISED_10baseT_Full)
speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_10FULL;
if (bp->advertising & ADVERTISED_100baseT_Half)
speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_100HALF;
if (bp->advertising & ADVERTISED_100baseT_Full)
speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_100FULL;
if (bp->advertising & ADVERTISED_1000baseT_Full)
speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_1GFULL;
if (bp->advertising & ADVERTISED_2500baseX_Full)
speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_2G5FULL;
} else {
if (bp->req_line_speed == SPEED_2500)
speed_arg = BNX2_NETLINK_SET_LINK_SPEED_2G5FULL;
else if (bp->req_line_speed == SPEED_1000)
speed_arg = BNX2_NETLINK_SET_LINK_SPEED_1GFULL;
else if (bp->req_line_speed == SPEED_100) {
if (bp->req_duplex == DUPLEX_FULL)
speed_arg = BNX2_NETLINK_SET_LINK_SPEED_100FULL;
else
speed_arg = BNX2_NETLINK_SET_LINK_SPEED_100HALF;
} else if (bp->req_line_speed == SPEED_10) {
if (bp->req_duplex == DUPLEX_FULL)
speed_arg = BNX2_NETLINK_SET_LINK_SPEED_10FULL;
else
speed_arg = BNX2_NETLINK_SET_LINK_SPEED_10HALF;
}
}
if (pause_adv & (ADVERTISE_1000XPAUSE | ADVERTISE_PAUSE_CAP))
speed_arg |= BNX2_NETLINK_SET_LINK_FC_SYM_PAUSE;
if (pause_adv & (ADVERTISE_1000XPSE_ASYM | ADVERTISE_PAUSE_ASYM))
speed_arg |= BNX2_NETLINK_SET_LINK_FC_ASYM_PAUSE;
if (port == PORT_TP)
speed_arg |= BNX2_NETLINK_SET_LINK_PHY_APP_REMOTE |
BNX2_NETLINK_SET_LINK_ETH_AT_WIRESPEED;
bnx2_shmem_wr(bp, BNX2_DRV_MB_ARG0, speed_arg);
spin_unlock_bh(&bp->phy_lock);
bnx2_fw_sync(bp, BNX2_DRV_MSG_CODE_CMD_SET_LINK, 1, 0);
spin_lock_bh(&bp->phy_lock);
return 0;
}
static int
bnx2_setup_serdes_phy(struct bnx2 *bp, u8 port)
__releases(&bp->phy_lock)
__acquires(&bp->phy_lock)
{
u32 adv, bmcr;
u32 new_adv = 0;
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
return bnx2_setup_remote_phy(bp, port);
if (!(bp->autoneg & AUTONEG_SPEED)) {
u32 new_bmcr;
int force_link_down = 0;
if (bp->req_line_speed == SPEED_2500) {
if (!bnx2_test_and_enable_2g5(bp))
force_link_down = 1;
} else if (bp->req_line_speed == SPEED_1000) {
if (bnx2_test_and_disable_2g5(bp))
force_link_down = 1;
}
bnx2_read_phy(bp, bp->mii_adv, &adv);
adv &= ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF);
bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
new_bmcr = bmcr & ~BMCR_ANENABLE;
new_bmcr |= BMCR_SPEED1000;
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
if (bp->req_line_speed == SPEED_2500)
bnx2_enable_forced_2g5(bp);
else if (bp->req_line_speed == SPEED_1000) {
bnx2_disable_forced_2g5(bp);
new_bmcr &= ~0x2000;
}
} else if (CHIP_NUM(bp) == CHIP_NUM_5708) {
if (bp->req_line_speed == SPEED_2500)
new_bmcr |= BCM5708S_BMCR_FORCE_2500;
else
new_bmcr = bmcr & ~BCM5708S_BMCR_FORCE_2500;
}
if (bp->req_duplex == DUPLEX_FULL) {
adv |= ADVERTISE_1000XFULL;
new_bmcr |= BMCR_FULLDPLX;
}
else {
adv |= ADVERTISE_1000XHALF;
new_bmcr &= ~BMCR_FULLDPLX;
}
if ((new_bmcr != bmcr) || (force_link_down)) {
/* Force a link down visible on the other side */
if (bp->link_up) {
bnx2_write_phy(bp, bp->mii_adv, adv &
~(ADVERTISE_1000XFULL |
ADVERTISE_1000XHALF));
bnx2_write_phy(bp, bp->mii_bmcr, bmcr |
BMCR_ANRESTART | BMCR_ANENABLE);
bp->link_up = 0;
netif_carrier_off(bp->dev);
bnx2_write_phy(bp, bp->mii_bmcr, new_bmcr);
bnx2_report_link(bp);
}
bnx2_write_phy(bp, bp->mii_adv, adv);
bnx2_write_phy(bp, bp->mii_bmcr, new_bmcr);
} else {
bnx2_resolve_flow_ctrl(bp);
bnx2_set_mac_link(bp);
}
return 0;
}
bnx2_test_and_enable_2g5(bp);
if (bp->advertising & ADVERTISED_1000baseT_Full)
new_adv |= ADVERTISE_1000XFULL;
new_adv |= bnx2_phy_get_pause_adv(bp);
bnx2_read_phy(bp, bp->mii_adv, &adv);
bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
bp->serdes_an_pending = 0;
if ((adv != new_adv) || ((bmcr & BMCR_ANENABLE) == 0)) {
/* Force a link down visible on the other side */
if (bp->link_up) {
bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK);
spin_unlock_bh(&bp->phy_lock);
msleep(20);
spin_lock_bh(&bp->phy_lock);
}
bnx2_write_phy(bp, bp->mii_adv, new_adv);
bnx2_write_phy(bp, bp->mii_bmcr, bmcr | BMCR_ANRESTART |
BMCR_ANENABLE);
/* Speed up link-up time when the link partner
* does not autonegotiate which is very common
* in blade servers. Some blade servers use
* IPMI for kerboard input and it's important
* to minimize link disruptions. Autoneg. involves
* exchanging base pages plus 3 next pages and
* normally completes in about 120 msec.
*/
bp->current_interval = BNX2_SERDES_AN_TIMEOUT;
bp->serdes_an_pending = 1;
mod_timer(&bp->timer, jiffies + bp->current_interval);
} else {
bnx2_resolve_flow_ctrl(bp);
bnx2_set_mac_link(bp);
}
return 0;
}
#define ETHTOOL_ALL_FIBRE_SPEED \
(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE) ? \
(ADVERTISED_2500baseX_Full | ADVERTISED_1000baseT_Full) :\
(ADVERTISED_1000baseT_Full)
#define ETHTOOL_ALL_COPPER_SPEED \
(ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
ADVERTISED_1000baseT_Full)
#define PHY_ALL_10_100_SPEED (ADVERTISE_10HALF | ADVERTISE_10FULL | \
ADVERTISE_100HALF | ADVERTISE_100FULL | ADVERTISE_CSMA)
#define PHY_ALL_1000_SPEED (ADVERTISE_1000HALF | ADVERTISE_1000FULL)
static void
bnx2_set_default_remote_link(struct bnx2 *bp)
{
u32 link;
if (bp->phy_port == PORT_TP)
link = bnx2_shmem_rd(bp, BNX2_RPHY_COPPER_LINK);
else
link = bnx2_shmem_rd(bp, BNX2_RPHY_SERDES_LINK);
if (link & BNX2_NETLINK_SET_LINK_ENABLE_AUTONEG) {
bp->req_line_speed = 0;
bp->autoneg |= AUTONEG_SPEED;
bp->advertising = ADVERTISED_Autoneg;
if (link & BNX2_NETLINK_SET_LINK_SPEED_10HALF)
bp->advertising |= ADVERTISED_10baseT_Half;
if (link & BNX2_NETLINK_SET_LINK_SPEED_10FULL)
bp->advertising |= ADVERTISED_10baseT_Full;
if (link & BNX2_NETLINK_SET_LINK_SPEED_100HALF)
bp->advertising |= ADVERTISED_100baseT_Half;
if (link & BNX2_NETLINK_SET_LINK_SPEED_100FULL)
bp->advertising |= ADVERTISED_100baseT_Full;
if (link & BNX2_NETLINK_SET_LINK_SPEED_1GFULL)
bp->advertising |= ADVERTISED_1000baseT_Full;
if (link & BNX2_NETLINK_SET_LINK_SPEED_2G5FULL)
bp->advertising |= ADVERTISED_2500baseX_Full;
} else {
bp->autoneg = 0;
bp->advertising = 0;
bp->req_duplex = DUPLEX_FULL;
if (link & BNX2_NETLINK_SET_LINK_SPEED_10) {
bp->req_line_speed = SPEED_10;
if (link & BNX2_NETLINK_SET_LINK_SPEED_10HALF)
bp->req_duplex = DUPLEX_HALF;
}
if (link & BNX2_NETLINK_SET_LINK_SPEED_100) {
bp->req_line_speed = SPEED_100;
if (link & BNX2_NETLINK_SET_LINK_SPEED_100HALF)
bp->req_duplex = DUPLEX_HALF;
}
if (link & BNX2_NETLINK_SET_LINK_SPEED_1GFULL)
bp->req_line_speed = SPEED_1000;
if (link & BNX2_NETLINK_SET_LINK_SPEED_2G5FULL)
bp->req_line_speed = SPEED_2500;
}
}
static void
bnx2_set_default_link(struct bnx2 *bp)
{
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
bnx2_set_default_remote_link(bp);
return;
}
bp->autoneg = AUTONEG_SPEED | AUTONEG_FLOW_CTRL;
bp->req_line_speed = 0;
if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
u32 reg;
bp->advertising = ETHTOOL_ALL_FIBRE_SPEED | ADVERTISED_Autoneg;
reg = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_CONFIG);
reg &= BNX2_PORT_HW_CFG_CFG_DFLT_LINK_MASK;
if (reg == BNX2_PORT_HW_CFG_CFG_DFLT_LINK_1G) {
bp->autoneg = 0;
bp->req_line_speed = bp->line_speed = SPEED_1000;
bp->req_duplex = DUPLEX_FULL;
}
} else
bp->advertising = ETHTOOL_ALL_COPPER_SPEED | ADVERTISED_Autoneg;
}
static void
bnx2_send_heart_beat(struct bnx2 *bp)
{
u32 msg;
u32 addr;
spin_lock(&bp->indirect_lock);
msg = (u32) (++bp->fw_drv_pulse_wr_seq & BNX2_DRV_PULSE_SEQ_MASK);
addr = bp->shmem_base + BNX2_DRV_PULSE_MB;
BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, addr);
BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW, msg);
spin_unlock(&bp->indirect_lock);
}
static void
bnx2_remote_phy_event(struct bnx2 *bp)
{
u32 msg;
u8 link_up = bp->link_up;
u8 old_port;
msg = bnx2_shmem_rd(bp, BNX2_LINK_STATUS);
if (msg & BNX2_LINK_STATUS_HEART_BEAT_EXPIRED)
bnx2_send_heart_beat(bp);
msg &= ~BNX2_LINK_STATUS_HEART_BEAT_EXPIRED;
if ((msg & BNX2_LINK_STATUS_LINK_UP) == BNX2_LINK_STATUS_LINK_DOWN)
bp->link_up = 0;
else {
u32 speed;
bp->link_up = 1;
speed = msg & BNX2_LINK_STATUS_SPEED_MASK;
bp->duplex = DUPLEX_FULL;
switch (speed) {
case BNX2_LINK_STATUS_10HALF:
bp->duplex = DUPLEX_HALF;
/* fall through */
case BNX2_LINK_STATUS_10FULL:
bp->line_speed = SPEED_10;
break;
case BNX2_LINK_STATUS_100HALF:
bp->duplex = DUPLEX_HALF;
/* fall through */
case BNX2_LINK_STATUS_100BASE_T4:
case BNX2_LINK_STATUS_100FULL:
bp->line_speed = SPEED_100;
break;
case BNX2_LINK_STATUS_1000HALF:
bp->duplex = DUPLEX_HALF;
/* fall through */
case BNX2_LINK_STATUS_1000FULL:
bp->line_speed = SPEED_1000;
break;
case BNX2_LINK_STATUS_2500HALF:
bp->duplex = DUPLEX_HALF;
/* fall through */
case BNX2_LINK_STATUS_2500FULL:
bp->line_speed = SPEED_2500;
break;
default:
bp->line_speed = 0;
break;
}
bp->flow_ctrl = 0;
if ((bp->autoneg & (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) !=
(AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) {
if (bp->duplex == DUPLEX_FULL)
bp->flow_ctrl = bp->req_flow_ctrl;
} else {
if (msg & BNX2_LINK_STATUS_TX_FC_ENABLED)
bp->flow_ctrl |= FLOW_CTRL_TX;
if (msg & BNX2_LINK_STATUS_RX_FC_ENABLED)
bp->flow_ctrl |= FLOW_CTRL_RX;
}
old_port = bp->phy_port;
if (msg & BNX2_LINK_STATUS_SERDES_LINK)
bp->phy_port = PORT_FIBRE;
else
bp->phy_port = PORT_TP;
if (old_port != bp->phy_port)
bnx2_set_default_link(bp);
}
if (bp->link_up != link_up)
bnx2_report_link(bp);
bnx2_set_mac_link(bp);
}
static int
bnx2_set_remote_link(struct bnx2 *bp)
{
u32 evt_code;
evt_code = bnx2_shmem_rd(bp, BNX2_FW_EVT_CODE_MB);
switch (evt_code) {
case BNX2_FW_EVT_CODE_LINK_EVENT:
bnx2_remote_phy_event(bp);
break;
case BNX2_FW_EVT_CODE_SW_TIMER_EXPIRATION_EVENT:
default:
bnx2_send_heart_beat(bp);
break;
}
return 0;
}
static int
bnx2_setup_copper_phy(struct bnx2 *bp)
__releases(&bp->phy_lock)
__acquires(&bp->phy_lock)
{
u32 bmcr;
u32 new_bmcr;
bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
if (bp->autoneg & AUTONEG_SPEED) {
u32 adv_reg, adv1000_reg;
u32 new_adv = 0;
u32 new_adv1000 = 0;
bnx2_read_phy(bp, bp->mii_adv, &adv_reg);
adv_reg &= (PHY_ALL_10_100_SPEED | ADVERTISE_PAUSE_CAP |
ADVERTISE_PAUSE_ASYM);
bnx2_read_phy(bp, MII_CTRL1000, &adv1000_reg);
adv1000_reg &= PHY_ALL_1000_SPEED;
new_adv = ethtool_adv_to_mii_adv_t(bp->advertising);
new_adv |= ADVERTISE_CSMA;
new_adv |= bnx2_phy_get_pause_adv(bp);
new_adv1000 |= ethtool_adv_to_mii_ctrl1000_t(bp->advertising);
if ((adv1000_reg != new_adv1000) ||
(adv_reg != new_adv) ||
((bmcr & BMCR_ANENABLE) == 0)) {
bnx2_write_phy(bp, bp->mii_adv, new_adv);
bnx2_write_phy(bp, MII_CTRL1000, new_adv1000);
bnx2_write_phy(bp, bp->mii_bmcr, BMCR_ANRESTART |
BMCR_ANENABLE);
}
else if (bp->link_up) {
/* Flow ctrl may have changed from auto to forced */
/* or vice-versa. */
bnx2_resolve_flow_ctrl(bp);
bnx2_set_mac_link(bp);
}
return 0;
}
new_bmcr = 0;
if (bp->req_line_speed == SPEED_100) {
new_bmcr |= BMCR_SPEED100;
}
if (bp->req_duplex == DUPLEX_FULL) {
new_bmcr |= BMCR_FULLDPLX;
}
if (new_bmcr != bmcr) {
u32 bmsr;
bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
if (bmsr & BMSR_LSTATUS) {
/* Force link down */
bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK);
spin_unlock_bh(&bp->phy_lock);
msleep(50);
spin_lock_bh(&bp->phy_lock);
bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);
}
bnx2_write_phy(bp, bp->mii_bmcr, new_bmcr);
/* Normally, the new speed is setup after the link has
* gone down and up again. In some cases, link will not go
* down so we need to set up the new speed here.
*/
if (bmsr & BMSR_LSTATUS) {
bp->line_speed = bp->req_line_speed;
bp->duplex = bp->req_duplex;
bnx2_resolve_flow_ctrl(bp);
bnx2_set_mac_link(bp);
}
} else {
bnx2_resolve_flow_ctrl(bp);
bnx2_set_mac_link(bp);
}
return 0;
}
static int
bnx2_setup_phy(struct bnx2 *bp, u8 port)
__releases(&bp->phy_lock)
__acquires(&bp->phy_lock)
{
if (bp->loopback == MAC_LOOPBACK)
return 0;
if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
return bnx2_setup_serdes_phy(bp, port);
}
else {
return bnx2_setup_copper_phy(bp);
}
}
static int
bnx2_init_5709s_phy(struct bnx2 *bp, int reset_phy)
{
u32 val;
bp->mii_bmcr = MII_BMCR + 0x10;
bp->mii_bmsr = MII_BMSR + 0x10;
bp->mii_bmsr1 = MII_BNX2_GP_TOP_AN_STATUS1;
bp->mii_adv = MII_ADVERTISE + 0x10;
bp->mii_lpa = MII_LPA + 0x10;
bp->mii_up1 = MII_BNX2_OVER1G_UP1;
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_AER);
bnx2_write_phy(bp, MII_BNX2_AER_AER, MII_BNX2_AER_AER_AN_MMD);
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
if (reset_phy)
bnx2_reset_phy(bp);
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_SERDES_DIG);
bnx2_read_phy(bp, MII_BNX2_SERDES_DIG_1000XCTL1, &val);
val &= ~MII_BNX2_SD_1000XCTL1_AUTODET;
val |= MII_BNX2_SD_1000XCTL1_FIBER;
bnx2_write_phy(bp, MII_BNX2_SERDES_DIG_1000XCTL1, val);
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_OVER1G);
bnx2_read_phy(bp, MII_BNX2_OVER1G_UP1, &val);
if (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE)
val |= BCM5708S_UP1_2G5;
else
val &= ~BCM5708S_UP1_2G5;
bnx2_write_phy(bp, MII_BNX2_OVER1G_UP1, val);
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_BAM_NXTPG);
bnx2_read_phy(bp, MII_BNX2_BAM_NXTPG_CTL, &val);
val |= MII_BNX2_NXTPG_CTL_T2 | MII_BNX2_NXTPG_CTL_BAM;
bnx2_write_phy(bp, MII_BNX2_BAM_NXTPG_CTL, val);
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_CL73_USERB0);
val = MII_BNX2_CL73_BAM_EN | MII_BNX2_CL73_BAM_STA_MGR_EN |
MII_BNX2_CL73_BAM_NP_AFT_BP_EN;
bnx2_write_phy(bp, MII_BNX2_CL73_BAM_CTL1, val);
bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_COMBO_IEEEB0);
return 0;
}
static int
bnx2_init_5708s_phy(struct bnx2 *bp, int reset_phy)
{
u32 val;
if (reset_phy)
bnx2_reset_phy(bp);
bp->mii_up1 = BCM5708S_UP1;
bnx2_write_phy(bp, BCM5708S_BLK_ADDR, BCM5708S_BLK_ADDR_DIG3);
bnx2_write_phy(bp, BCM5708S_DIG_3_0, BCM5708S_DIG_3_0_USE_IEEE);
bnx2_write_phy(bp, BCM5708S_BLK_ADDR, BCM5708S_BLK_ADDR_DIG);
bnx2_read_phy(bp, BCM5708S_1000X_CTL1, &val);
val |= BCM5708S_1000X_CTL1_FIBER_MODE | BCM5708S_1000X_CTL1_AUTODET_EN;
bnx2_write_phy(bp, BCM5708S_1000X_CTL1, val);
bnx2_read_phy(bp, BCM5708S_1000X_CTL2, &val);
val |= BCM5708S_1000X_CTL2_PLLEL_DET_EN;
bnx2_write_phy(bp, BCM5708S_1000X_CTL2, val);
if (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE) {
bnx2_read_phy(bp, BCM5708S_UP1, &val);
val |= BCM5708S_UP1_2G5;
bnx2_write_phy(bp, BCM5708S_UP1, val);
}
if ((CHIP_ID(bp) == CHIP_ID_5708_A0) ||
(CHIP_ID(bp) == CHIP_ID_5708_B0) ||
(CHIP_ID(bp) == CHIP_ID_5708_B1)) {
/* increase tx signal amplitude */
bnx2_write_phy(bp, BCM5708S_BLK_ADDR,
BCM5708S_BLK_ADDR_TX_MISC);
bnx2_read_phy(bp, BCM5708S_TX_ACTL1, &val);
val &= ~BCM5708S_TX_ACTL1_DRIVER_VCM;
bnx2_write_phy(bp, BCM5708S_TX_ACTL1, val);
bnx2_write_phy(bp, BCM5708S_BLK_ADDR, BCM5708S_BLK_ADDR_DIG);
}
val = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_CONFIG) &
BNX2_PORT_HW_CFG_CFG_TXCTL3_MASK;
if (val) {
u32 is_backplane;
is_backplane = bnx2_shmem_rd(bp, BNX2_SHARED_HW_CFG_CONFIG);
if (is_backplane & BNX2_SHARED_HW_CFG_PHY_BACKPLANE) {
bnx2_write_phy(bp, BCM5708S_BLK_ADDR,
BCM5708S_BLK_ADDR_TX_MISC);
bnx2_write_phy(bp, BCM5708S_TX_ACTL3, val);
bnx2_write_phy(bp, BCM5708S_BLK_ADDR,
BCM5708S_BLK_ADDR_DIG);
}
}
return 0;
}
static int
bnx2_init_5706s_phy(struct bnx2 *bp, int reset_phy)
{
if (reset_phy)
bnx2_reset_phy(bp);
bp->phy_flags &= ~BNX2_PHY_FLAG_PARALLEL_DETECT;
if (CHIP_NUM(bp) == CHIP_NUM_5706)
BNX2_WR(bp, BNX2_MISC_GP_HW_CTL0, 0x300);
if (bp->dev->mtu > 1500) {
u32 val;
/* Set extended packet length bit */
bnx2_write_phy(bp, 0x18, 0x7);
bnx2_read_phy(bp, 0x18, &val);
bnx2_write_phy(bp, 0x18, (val & 0xfff8) | 0x4000);
bnx2_write_phy(bp, 0x1c, 0x6c00);
bnx2_read_phy(bp, 0x1c, &val);
bnx2_write_phy(bp, 0x1c, (val & 0x3ff) | 0xec02);
}
else {
u32 val;
bnx2_write_phy(bp, 0x18, 0x7);
bnx2_read_phy(bp, 0x18, &val);
bnx2_write_phy(bp, 0x18, val & ~0x4007);
bnx2_write_phy(bp, 0x1c, 0x6c00);
bnx2_read_phy(bp, 0x1c, &val);
bnx2_write_phy(bp, 0x1c, (val & 0x3fd) | 0xec00);
}
return 0;
}
static int
bnx2_init_copper_phy(struct bnx2 *bp, int reset_phy)
{
u32 val;
if (reset_phy)
bnx2_reset_phy(bp);
if (bp->phy_flags & BNX2_PHY_FLAG_CRC_FIX) {
bnx2_write_phy(bp, 0x18, 0x0c00);
bnx2_write_phy(bp, 0x17, 0x000a);
bnx2_write_phy(bp, 0x15, 0x310b);
bnx2_write_phy(bp, 0x17, 0x201f);
bnx2_write_phy(bp, 0x15, 0x9506);
bnx2_write_phy(bp, 0x17, 0x401f);
bnx2_write_phy(bp, 0x15, 0x14e2);
bnx2_write_phy(bp, 0x18, 0x0400);
}
if (bp->phy_flags & BNX2_PHY_FLAG_DIS_EARLY_DAC) {
bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS,
MII_BNX2_DSP_EXPAND_REG | 0x8);
bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &val);
val &= ~(1 << 8);
bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val);
}
if (bp->dev->mtu > 1500) {
/* Set extended packet length bit */
bnx2_write_phy(bp, 0x18, 0x7);
bnx2_read_phy(bp, 0x18, &val);
bnx2_write_phy(bp, 0x18, val | 0x4000);
bnx2_read_phy(bp, 0x10, &val);
bnx2_write_phy(bp, 0x10, val | 0x1);
}
else {
bnx2_write_phy(bp, 0x18, 0x7);
bnx2_read_phy(bp, 0x18, &val);
bnx2_write_phy(bp, 0x18, val & ~0x4007);
bnx2_read_phy(bp, 0x10, &val);
bnx2_write_phy(bp, 0x10, val & ~0x1);
}
/* ethernet@wirespeed */
bnx2_write_phy(bp, 0x18, 0x7007);
bnx2_read_phy(bp, 0x18, &val);
bnx2_write_phy(bp, 0x18, val | (1 << 15) | (1 << 4));
return 0;
}
static int
bnx2_init_phy(struct bnx2 *bp, int reset_phy)
__releases(&bp->phy_lock)
__acquires(&bp->phy_lock)
{
u32 val;
int rc = 0;
bp->phy_flags &= ~BNX2_PHY_FLAG_INT_MODE_MASK;
bp->phy_flags |= BNX2_PHY_FLAG_INT_MODE_LINK_READY;
bp->mii_bmcr = MII_BMCR;
bp->mii_bmsr = MII_BMSR;
bp->mii_bmsr1 = MII_BMSR;
bp->mii_adv = MII_ADVERTISE;
bp->mii_lpa = MII_LPA;
BNX2_WR(bp, BNX2_EMAC_ATTENTION_ENA, BNX2_EMAC_ATTENTION_ENA_LINK);
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
goto setup_phy;
bnx2_read_phy(bp, MII_PHYSID1, &val);
bp->phy_id = val << 16;
bnx2_read_phy(bp, MII_PHYSID2, &val);
bp->phy_id |= val & 0xffff;
if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
if (CHIP_NUM(bp) == CHIP_NUM_5706)
rc = bnx2_init_5706s_phy(bp, reset_phy);
else if (CHIP_NUM(bp) == CHIP_NUM_5708)
rc = bnx2_init_5708s_phy(bp, reset_phy);
else if (CHIP_NUM(bp) == CHIP_NUM_5709)
rc = bnx2_init_5709s_phy(bp, reset_phy);
}
else {
rc = bnx2_init_copper_phy(bp, reset_phy);
}
setup_phy:
if (!rc)
rc = bnx2_setup_phy(bp, bp->phy_port);
return rc;
}
static int
bnx2_set_mac_loopback(struct bnx2 *bp)
{
u32 mac_mode;
mac_mode = BNX2_RD(bp, BNX2_EMAC_MODE);
mac_mode &= ~BNX2_EMAC_MODE_PORT;
mac_mode |= BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK;
BNX2_WR(bp, BNX2_EMAC_MODE, mac_mode);
bp->link_up = 1;
return 0;
}
static int bnx2_test_link(struct bnx2 *);
static int
bnx2_set_phy_loopback(struct bnx2 *bp)
{
u32 mac_mode;
int rc, i;
spin_lock_bh(&bp->phy_lock);
rc = bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK | BMCR_FULLDPLX |
BMCR_SPEED1000);
spin_unlock_bh(&bp->phy_lock);
if (rc)
return rc;
for (i = 0; i < 10; i++) {
if (bnx2_test_link(bp) == 0)
break;
msleep(100);
}
mac_mode = BNX2_RD(bp, BNX2_EMAC_MODE);
mac_mode &= ~(BNX2_EMAC_MODE_PORT | BNX2_EMAC_MODE_HALF_DUPLEX |
BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK |
BNX2_EMAC_MODE_25G_MODE);
mac_mode |= BNX2_EMAC_MODE_PORT_GMII;
BNX2_WR(bp, BNX2_EMAC_MODE, mac_mode);
bp->link_up = 1;
return 0;
}
static void
bnx2_dump_mcp_state(struct bnx2 *bp)
{
struct net_device *dev = bp->dev;
u32 mcp_p0, mcp_p1;
netdev_err(dev, "<--- start MCP states dump --->\n");
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
mcp_p0 = BNX2_MCP_STATE_P0;
mcp_p1 = BNX2_MCP_STATE_P1;
} else {
mcp_p0 = BNX2_MCP_STATE_P0_5708;
mcp_p1 = BNX2_MCP_STATE_P1_5708;
}
netdev_err(dev, "DEBUG: MCP_STATE_P0[%08x] MCP_STATE_P1[%08x]\n",
bnx2_reg_rd_ind(bp, mcp_p0), bnx2_reg_rd_ind(bp, mcp_p1));
netdev_err(dev, "DEBUG: MCP mode[%08x] state[%08x] evt_mask[%08x]\n",
bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_MODE),
bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_STATE),
bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_EVENT_MASK));
netdev_err(dev, "DEBUG: pc[%08x] pc[%08x] instr[%08x]\n",
bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_PROGRAM_COUNTER),
bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_PROGRAM_COUNTER),
bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_INSTRUCTION));
netdev_err(dev, "DEBUG: shmem states:\n");
netdev_err(dev, "DEBUG: drv_mb[%08x] fw_mb[%08x] link_status[%08x]",
bnx2_shmem_rd(bp, BNX2_DRV_MB),
bnx2_shmem_rd(bp, BNX2_FW_MB),
bnx2_shmem_rd(bp, BNX2_LINK_STATUS));
pr_cont(" drv_pulse_mb[%08x]\n", bnx2_shmem_rd(bp, BNX2_DRV_PULSE_MB));
netdev_err(dev, "DEBUG: dev_info_signature[%08x] reset_type[%08x]",
bnx2_shmem_rd(bp, BNX2_DEV_INFO_SIGNATURE),
bnx2_shmem_rd(bp, BNX2_BC_STATE_RESET_TYPE));
pr_cont(" condition[%08x]\n",
bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION));
DP_SHMEM_LINE(bp, BNX2_BC_RESET_TYPE);
DP_SHMEM_LINE(bp, 0x3cc);
DP_SHMEM_LINE(bp, 0x3dc);
DP_SHMEM_LINE(bp, 0x3ec);
netdev_err(dev, "DEBUG: 0x3fc[%08x]\n", bnx2_shmem_rd(bp, 0x3fc));
netdev_err(dev, "<--- end MCP states dump --->\n");
}
static int
bnx2_fw_sync(struct bnx2 *bp, u32 msg_data, int ack, int silent)
{
int i;
u32 val;
bp->fw_wr_seq++;
msg_data |= bp->fw_wr_seq;
bnx2_shmem_wr(bp, BNX2_DRV_MB, msg_data);
if (!ack)
return 0;
/* wait for an acknowledgement. */
for (i = 0; i < (BNX2_FW_ACK_TIME_OUT_MS / 10); i++) {
msleep(10);
val = bnx2_shmem_rd(bp, BNX2_FW_MB);
if ((val & BNX2_FW_MSG_ACK) == (msg_data & BNX2_DRV_MSG_SEQ))
break;
}
if ((msg_data & BNX2_DRV_MSG_DATA) == BNX2_DRV_MSG_DATA_WAIT0)
return 0;
/* If we timed out, inform the firmware that this is the case. */
if ((val & BNX2_FW_MSG_ACK) != (msg_data & BNX2_DRV_MSG_SEQ)) {
msg_data &= ~BNX2_DRV_MSG_CODE;
msg_data |= BNX2_DRV_MSG_CODE_FW_TIMEOUT;
bnx2_shmem_wr(bp, BNX2_DRV_MB, msg_data);
if (!silent) {
pr_err("fw sync timeout, reset code = %x\n", msg_data);
bnx2_dump_mcp_state(bp);
}
return -EBUSY;
}
if ((val & BNX2_FW_MSG_STATUS_MASK) != BNX2_FW_MSG_STATUS_OK)
return -EIO;
return 0;
}
static int
bnx2_init_5709_context(struct bnx2 *bp)
{
int i, ret = 0;
u32 val;
val = BNX2_CTX_COMMAND_ENABLED | BNX2_CTX_COMMAND_MEM_INIT | (1 << 12);
val |= (BCM_PAGE_BITS - 8) << 16;
BNX2_WR(bp, BNX2_CTX_COMMAND, val);
for (i = 0; i < 10; i++) {
val = BNX2_RD(bp, BNX2_CTX_COMMAND);
if (!(val & BNX2_CTX_COMMAND_MEM_INIT))
break;
udelay(2);
}
if (val & BNX2_CTX_COMMAND_MEM_INIT)
return -EBUSY;
for (i = 0; i < bp->ctx_pages; i++) {
int j;
if (bp->ctx_blk[i])
memset(bp->ctx_blk[i], 0, BCM_PAGE_SIZE);
else
return -ENOMEM;
BNX2_WR(bp, BNX2_CTX_HOST_PAGE_TBL_DATA0,
(bp->ctx_blk_mapping[i] & 0xffffffff) |
BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID);
BNX2_WR(bp, BNX2_CTX_HOST_PAGE_TBL_DATA1,
(u64) bp->ctx_blk_mapping[i] >> 32);
BNX2_WR(bp, BNX2_CTX_HOST_PAGE_TBL_CTRL, i |
BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
for (j = 0; j < 10; j++) {
val = BNX2_RD(bp, BNX2_CTX_HOST_PAGE_TBL_CTRL);
if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ))
break;
udelay(5);
}
if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) {
ret = -EBUSY;
break;
}
}
return ret;
}
static void
bnx2_init_context(struct bnx2 *bp)
{
u32 vcid;
vcid = 96;
while (vcid) {
u32 vcid_addr, pcid_addr, offset;
int i;
vcid--;
if (CHIP_ID(bp) == CHIP_ID_5706_A0) {
u32 new_vcid;
vcid_addr = GET_PCID_ADDR(vcid);
if (vcid & 0x8) {
new_vcid = 0x60 + (vcid & 0xf0) + (vcid & 0x7);
}
else {
new_vcid = vcid;
}
pcid_addr = GET_PCID_ADDR(new_vcid);
}
else {
vcid_addr = GET_CID_ADDR(vcid);
pcid_addr = vcid_addr;
}
for (i = 0; i < (CTX_SIZE / PHY_CTX_SIZE); i++) {
vcid_addr += (i << PHY_CTX_SHIFT);
pcid_addr += (i << PHY_CTX_SHIFT);
BNX2_WR(bp, BNX2_CTX_VIRT_ADDR, vcid_addr);
BNX2_WR(bp, BNX2_CTX_PAGE_TBL, pcid_addr);
/* Zero out the context. */
for (offset = 0; offset < PHY_CTX_SIZE; offset += 4)
bnx2_ctx_wr(bp, vcid_addr, offset, 0);
}
}
}
static int
bnx2_alloc_bad_rbuf(struct bnx2 *bp)
{
u16 *good_mbuf;
u32 good_mbuf_cnt;
u32 val;
good_mbuf = kmalloc(512 * sizeof(u16), GFP_KERNEL);
if (good_mbuf == NULL)
return -ENOMEM;
BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS,
BNX2_MISC_ENABLE_SET_BITS_RX_MBUF_ENABLE);
good_mbuf_cnt = 0;
/* Allocate a bunch of mbufs and save the good ones in an array. */
val = bnx2_reg_rd_ind(bp, BNX2_RBUF_STATUS1);
while (val & BNX2_RBUF_STATUS1_FREE_COUNT) {
bnx2_reg_wr_ind(bp, BNX2_RBUF_COMMAND,
BNX2_RBUF_COMMAND_ALLOC_REQ);
val = bnx2_reg_rd_ind(bp, BNX2_RBUF_FW_BUF_ALLOC);
val &= BNX2_RBUF_FW_BUF_ALLOC_VALUE;
/* The addresses with Bit 9 set are bad memory blocks. */
if (!(val & (1 << 9))) {
good_mbuf[good_mbuf_cnt] = (u16) val;
good_mbuf_cnt++;
}
val = bnx2_reg_rd_ind(bp, BNX2_RBUF_STATUS1);
}
/* Free the good ones back to the mbuf pool thus discarding
* all the bad ones. */
while (good_mbuf_cnt) {
good_mbuf_cnt--;
val = good_mbuf[good_mbuf_cnt];
val = (val << 9) | val | 1;
bnx2_reg_wr_ind(bp, BNX2_RBUF_FW_BUF_FREE, val);
}
kfree(good_mbuf);
return 0;
}
static void
bnx2_set_mac_addr(struct bnx2 *bp, u8 *mac_addr, u32 pos)
{
u32 val;
val = (mac_addr[0] << 8) | mac_addr[1];
BNX2_WR(bp, BNX2_EMAC_MAC_MATCH0 + (pos * 8), val);
val = (mac_addr[2] << 24) | (mac_addr[3] << 16) |
(mac_addr[4] << 8) | mac_addr[5];
BNX2_WR(bp, BNX2_EMAC_MAC_MATCH1 + (pos * 8), val);
}
static inline int
bnx2_alloc_rx_page(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index, gfp_t gfp)
{
dma_addr_t mapping;
struct sw_pg *rx_pg = &rxr->rx_pg_ring[index];
struct rx_bd *rxbd =
&rxr->rx_pg_desc_ring[RX_RING(index)][RX_IDX(index)];
struct page *page = alloc_page(gfp);
if (!page)
return -ENOMEM;
mapping = dma_map_page(&bp->pdev->dev, page, 0, PAGE_SIZE,
PCI_DMA_FROMDEVICE);
if (dma_mapping_error(&bp->pdev->dev, mapping)) {
__free_page(page);
return -EIO;
}
rx_pg->page = page;
dma_unmap_addr_set(rx_pg, mapping, mapping);
rxbd->rx_bd_haddr_hi = (u64) mapping >> 32;
rxbd->rx_bd_haddr_lo = (u64) mapping & 0xffffffff;
return 0;
}
static void
bnx2_free_rx_page(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index)
{
struct sw_pg *rx_pg = &rxr->rx_pg_ring[index];
struct page *page = rx_pg->page;
if (!page)
return;
dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(rx_pg, mapping),
PAGE_SIZE, PCI_DMA_FROMDEVICE);
__free_page(page);
rx_pg->page = NULL;
}
static inline int
bnx2_alloc_rx_data(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index, gfp_t gfp)
{
u8 *data;
struct sw_bd *rx_buf = &rxr->rx_buf_ring[index];
dma_addr_t mapping;
struct rx_bd *rxbd = &rxr->rx_desc_ring[RX_RING(index)][RX_IDX(index)];
data = kmalloc(bp->rx_buf_size, gfp);
if (!data)
return -ENOMEM;
mapping = dma_map_single(&bp->pdev->dev,
get_l2_fhdr(data),
bp->rx_buf_use_size,
PCI_DMA_FROMDEVICE);
if (dma_mapping_error(&bp->pdev->dev, mapping)) {
kfree(data);
return -EIO;
}
rx_buf->data = data;
dma_unmap_addr_set(rx_buf, mapping, mapping);
rxbd->rx_bd_haddr_hi = (u64) mapping >> 32;
rxbd->rx_bd_haddr_lo = (u64) mapping & 0xffffffff;
rxr->rx_prod_bseq += bp->rx_buf_use_size;
return 0;
}
static int
bnx2_phy_event_is_set(struct bnx2 *bp, struct bnx2_napi *bnapi, u32 event)
{
struct status_block *sblk = bnapi->status_blk.msi;
u32 new_link_state, old_link_state;
int is_set = 1;
new_link_state = sblk->status_attn_bits & event;
old_link_state = sblk->status_attn_bits_ack & event;
if (new_link_state != old_link_state) {
if (new_link_state)
BNX2_WR(bp, BNX2_PCICFG_STATUS_BIT_SET_CMD, event);
else
BNX2_WR(bp, BNX2_PCICFG_STATUS_BIT_CLEAR_CMD, event);
} else
is_set = 0;
return is_set;
}
static void
bnx2_phy_int(struct bnx2 *bp, struct bnx2_napi *bnapi)
{
spin_lock(&bp->phy_lock);
if (bnx2_phy_event_is_set(bp, bnapi, STATUS_ATTN_BITS_LINK_STATE))
bnx2_set_link(bp);
if (bnx2_phy_event_is_set(bp, bnapi, STATUS_ATTN_BITS_TIMER_ABORT))
bnx2_set_remote_link(bp);
spin_unlock(&bp->phy_lock);
}
static inline u16
bnx2_get_hw_tx_cons(struct bnx2_napi *bnapi)
{
u16 cons;
/* Tell compiler that status block fields can change. */
barrier();
cons = *bnapi->hw_tx_cons_ptr;
barrier();
if (unlikely((cons & MAX_TX_DESC_CNT) == MAX_TX_DESC_CNT))
cons++;
return cons;
}
static int
bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
{
struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
u16 hw_cons, sw_cons, sw_ring_cons;
int tx_pkt = 0, index;
unsigned int tx_bytes = 0;
struct netdev_queue *txq;
index = (bnapi - bp->bnx2_napi);
txq = netdev_get_tx_queue(bp->dev, index);
hw_cons = bnx2_get_hw_tx_cons(bnapi);
sw_cons = txr->tx_cons;
while (sw_cons != hw_cons) {
struct sw_tx_bd *tx_buf;
struct sk_buff *skb;
int i, last;
sw_ring_cons = TX_RING_IDX(sw_cons);
tx_buf = &txr->tx_buf_ring[sw_ring_cons];
skb = tx_buf->skb;
/* prefetch skb_end_pointer() to speedup skb_shinfo(skb) */
prefetch(&skb->end);
/* partial BD completions possible with TSO packets */
if (tx_buf->is_gso) {
u16 last_idx, last_ring_idx;
last_idx = sw_cons + tx_buf->nr_frags + 1;
last_ring_idx = sw_ring_cons + tx_buf->nr_frags + 1;
if (unlikely(last_ring_idx >= MAX_TX_DESC_CNT)) {
last_idx++;
}
if (((s16) ((s16) last_idx - (s16) hw_cons)) > 0) {
break;
}
}
dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),
skb_headlen(skb), PCI_DMA_TODEVICE);
tx_buf->skb = NULL;
last = tx_buf->nr_frags;
for (i = 0; i < last; i++) {
sw_cons = NEXT_TX_BD(sw_cons);
dma_unmap_page(&bp->pdev->dev,
dma_unmap_addr(
&txr->tx_buf_ring[TX_RING_IDX(sw_cons)],
mapping),
skb_frag_size(&skb_shinfo(skb)->frags[i]),
PCI_DMA_TODEVICE);
}
sw_cons = NEXT_TX_BD(sw_cons);
tx_bytes += skb->len;
dev_kfree_skb(skb);
tx_pkt++;
if (tx_pkt == budget)
break;
if (hw_cons == sw_cons)
hw_cons = bnx2_get_hw_tx_cons(bnapi);
}
netdev_tx_completed_queue(txq, tx_pkt, tx_bytes);
txr->hw_tx_cons = hw_cons;
txr->tx_cons = sw_cons;
/* Need to make the tx_cons update visible to bnx2_start_xmit()
* before checking for netif_tx_queue_stopped(). Without the
* memory barrier, there is a small possibility that bnx2_start_xmit()
* will miss it and cause the queue to be stopped forever.
*/
smp_mb();
if (unlikely(netif_tx_queue_stopped(txq)) &&
(bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh)) {
__netif_tx_lock(txq, smp_processor_id());
if ((netif_tx_queue_stopped(txq)) &&
(bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh))
netif_tx_wake_queue(txq);
__netif_tx_unlock(txq);
}
return tx_pkt;
}
static void
bnx2_reuse_rx_skb_pages(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr,
struct sk_buff *skb, int count)
{
struct sw_pg *cons_rx_pg, *prod_rx_pg;
struct rx_bd *cons_bd, *prod_bd;
int i;
u16 hw_prod, prod;
u16 cons = rxr->rx_pg_cons;
cons_rx_pg = &rxr->rx_pg_ring[cons];
/* The caller was unable to allocate a new page to replace the
* last one in the frags array, so we need to recycle that page
* and then free the skb.
*/
if (skb) {
struct page *page;
struct skb_shared_info *shinfo;
shinfo = skb_shinfo(skb);
shinfo->nr_frags--;
page = skb_frag_page(&shinfo->frags[shinfo->nr_frags]);
__skb_frag_set_page(&shinfo->frags[shinfo->nr_frags], NULL);
cons_rx_pg->page = page;
dev_kfree_skb(skb);
}
hw_prod = rxr->rx_pg_prod;
for (i = 0; i < count; i++) {
prod = RX_PG_RING_IDX(hw_prod);
prod_rx_pg = &rxr->rx_pg_ring[prod];
cons_rx_pg = &rxr->rx_pg_ring[cons];
cons_bd = &rxr->rx_pg_desc_ring[RX_RING(cons)][RX_IDX(cons)];
prod_bd = &rxr->rx_pg_desc_ring[RX_RING(prod)][RX_IDX(prod)];
if (prod != cons) {
prod_rx_pg->page = cons_rx_pg->page;
cons_rx_pg->page = NULL;
dma_unmap_addr_set(prod_rx_pg, mapping,
dma_unmap_addr(cons_rx_pg, mapping));
prod_bd->rx_bd_haddr_hi = cons_bd->rx_bd_haddr_hi;
prod_bd->rx_bd_haddr_lo = cons_bd->rx_bd_haddr_lo;
}
cons = RX_PG_RING_IDX(NEXT_RX_BD(cons));
hw_prod = NEXT_RX_BD(hw_prod);
}
rxr->rx_pg_prod = hw_prod;
rxr->rx_pg_cons = cons;
}
static inline void
bnx2_reuse_rx_data(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr,
u8 *data, u16 cons, u16 prod)
{
struct sw_bd *cons_rx_buf, *prod_rx_buf;
struct rx_bd *cons_bd, *prod_bd;
cons_rx_buf = &rxr->rx_buf_ring[cons];
prod_rx_buf = &rxr->rx_buf_ring[prod];
dma_sync_single_for_device(&bp->pdev->dev,
dma_unmap_addr(cons_rx_buf, mapping),
BNX2_RX_OFFSET + BNX2_RX_COPY_THRESH, PCI_DMA_FROMDEVICE);
rxr->rx_prod_bseq += bp->rx_buf_use_size;
prod_rx_buf->data = data;
if (cons == prod)
return;
dma_unmap_addr_set(prod_rx_buf, mapping,
dma_unmap_addr(cons_rx_buf, mapping));
cons_bd = &rxr->rx_desc_ring[RX_RING(cons)][RX_IDX(cons)];
prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)];
prod_bd->rx_bd_haddr_hi = cons_bd->rx_bd_haddr_hi;
prod_bd->rx_bd_haddr_lo = cons_bd->rx_bd_haddr_lo;
}
static struct sk_buff *
bnx2_rx_skb(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u8 *data,
unsigned int len, unsigned int hdr_len, dma_addr_t dma_addr,
u32 ring_idx)
{
int err;
u16 prod = ring_idx & 0xffff;
struct sk_buff *skb;
err = bnx2_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC);
if (unlikely(err)) {
bnx2_reuse_rx_data(bp, rxr, data, (u16) (ring_idx >> 16), prod);
error:
if (hdr_len) {
unsigned int raw_len = len + 4;
int pages = PAGE_ALIGN(raw_len - hdr_len) >> PAGE_SHIFT;
bnx2_reuse_rx_skb_pages(bp, rxr, NULL, pages);
}
return NULL;
}
dma_unmap_single(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size,
PCI_DMA_FROMDEVICE);
skb = build_skb(data, 0);
if (!skb) {
kfree(data);
goto error;
}
skb_reserve(skb, ((u8 *)get_l2_fhdr(data) - data) + BNX2_RX_OFFSET);
if (hdr_len == 0) {
skb_put(skb, len);
return skb;
} else {
unsigned int i, frag_len, frag_size, pages;
struct sw_pg *rx_pg;
u16 pg_cons = rxr->rx_pg_cons;
u16 pg_prod = rxr->rx_pg_prod;
frag_size = len + 4 - hdr_len;
pages = PAGE_ALIGN(frag_size) >> PAGE_SHIFT;
skb_put(skb, hdr_len);
for (i = 0; i < pages; i++) {
dma_addr_t mapping_old;
frag_len = min(frag_size, (unsigned int) PAGE_SIZE);
if (unlikely(frag_len <= 4)) {
unsigned int tail = 4 - frag_len;
rxr->rx_pg_cons = pg_cons;
rxr->rx_pg_prod = pg_prod;
bnx2_reuse_rx_skb_pages(bp, rxr, NULL,
pages - i);
skb->len -= tail;
if (i == 0) {
skb->tail -= tail;
} else {
skb_frag_t *frag =
&skb_shinfo(skb)->frags[i - 1];
skb_frag_size_sub(frag, tail);
skb->data_len -= tail;
}
return skb;
}
rx_pg = &rxr->rx_pg_ring[pg_cons];
/* Don't unmap yet. If we're unable to allocate a new
* page, we need to recycle the page and the DMA addr.
*/
mapping_old = dma_unmap_addr(rx_pg, mapping);
if (i == pages - 1)
frag_len -= 4;
skb_fill_page_desc(skb, i, rx_pg->page, 0, frag_len);
rx_pg->page = NULL;
err = bnx2_alloc_rx_page(bp, rxr,
RX_PG_RING_IDX(pg_prod),
GFP_ATOMIC);
if (unlikely(err)) {
rxr->rx_pg_cons = pg_cons;
rxr->rx_pg_prod = pg_prod;
bnx2_reuse_rx_skb_pages(bp, rxr, skb,
pages - i);
return NULL;
}
dma_unmap_page(&bp->pdev->dev, mapping_old,
PAGE_SIZE, PCI_DMA_FROMDEVICE);
frag_size -= frag_len;
skb->data_len += frag_len;
skb->truesize += PAGE_SIZE;
skb->len += frag_len;
pg_prod = NEXT_RX_BD(pg_prod);
pg_cons = RX_PG_RING_IDX(NEXT_RX_BD(pg_cons));
}
rxr->rx_pg_prod = pg_prod;
rxr->rx_pg_cons = pg_cons;
}
return skb;
}
static inline u16
bnx2_get_hw_rx_cons(struct bnx2_napi *bnapi)
{
u16 cons;
/* Tell compiler that status block fields can change. */
barrier();
cons = *bnapi->hw_rx_cons_ptr;
barrier();
if (unlikely((cons & MAX_RX_DESC_CNT) == MAX_RX_DESC_CNT))
cons++;
return cons;
}
static int
bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
{
struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
u16 hw_cons, sw_cons, sw_ring_cons, sw_prod, sw_ring_prod;
struct l2_fhdr *rx_hdr;
int rx_pkt = 0, pg_ring_used = 0;
hw_cons = bnx2_get_hw_rx_cons(bnapi);
sw_cons = rxr->rx_cons;
sw_prod = rxr->rx_prod;
/* Memory barrier necessary as speculative reads of the rx
* buffer can be ahead of the index in the status block
*/
rmb();
while (sw_cons != hw_cons) {
unsigned int len, hdr_len;
u32 status;
struct sw_bd *rx_buf, *next_rx_buf;
struct sk_buff *skb;
dma_addr_t dma_addr;
u8 *data;
sw_ring_cons = RX_RING_IDX(sw_cons);
sw_ring_prod = RX_RING_IDX(sw_prod);
rx_buf = &rxr->rx_buf_ring[sw_ring_cons];
data = rx_buf->data;
rx_buf->data = NULL;
rx_hdr = get_l2_fhdr(data);
prefetch(rx_hdr);
dma_addr = dma_unmap_addr(rx_buf, mapping);
dma_sync_single_for_cpu(&bp->pdev->dev, dma_addr,
BNX2_RX_OFFSET + BNX2_RX_COPY_THRESH,
PCI_DMA_FROMDEVICE);
next_rx_buf =
&rxr->rx_buf_ring[RX_RING_IDX(NEXT_RX_BD(sw_cons))];
prefetch(get_l2_fhdr(next_rx_buf->data));
len = rx_hdr->l2_fhdr_pkt_len;
status = rx_hdr->l2_fhdr_status;
hdr_len = 0;
if (status & L2_FHDR_STATUS_SPLIT) {
hdr_len = rx_hdr->l2_fhdr_ip_xsum;
pg_ring_used = 1;
} else if (len > bp->rx_jumbo_thresh) {
hdr_len = bp->rx_jumbo_thresh;
pg_ring_used = 1;
}
if (unlikely(status & (L2_FHDR_ERRORS_BAD_CRC |
L2_FHDR_ERRORS_PHY_DECODE |
L2_FHDR_ERRORS_ALIGNMENT |
L2_FHDR_ERRORS_TOO_SHORT |
L2_FHDR_ERRORS_GIANT_FRAME))) {
bnx2_reuse_rx_data(bp, rxr, data, sw_ring_cons,
sw_ring_prod);
if (pg_ring_used) {
int pages;
pages = PAGE_ALIGN(len - hdr_len) >> PAGE_SHIFT;
bnx2_reuse_rx_skb_pages(bp, rxr, NULL, pages);
}
goto next_rx;
}
len -= 4;
if (len <= bp->rx_copy_thresh) {
skb = netdev_alloc_skb(bp->dev, len + 6);
if (skb == NULL) {
bnx2_reuse_rx_data(bp, rxr, data, sw_ring_cons,
sw_ring_prod);
goto next_rx;
}
/* aligned copy */
memcpy(skb->data,
(u8 *)rx_hdr + BNX2_RX_OFFSET - 6,
len + 6);
skb_reserve(skb, 6);
skb_put(skb, len);
bnx2_reuse_rx_data(bp, rxr, data,
sw_ring_cons, sw_ring_prod);
} else {
skb = bnx2_rx_skb(bp, rxr, data, len, hdr_len, dma_addr,
(sw_ring_cons << 16) | sw_ring_prod);
if (!skb)
goto next_rx;
}
if ((status & L2_FHDR_STATUS_L2_VLAN_TAG) &&
!(bp->rx_mode & BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG))
__vlan_hwaccel_put_tag(skb, rx_hdr->l2_fhdr_vlan_tag);
skb->protocol = eth_type_trans(skb, bp->dev);
if ((len > (bp->dev->mtu + ETH_HLEN)) &&
(ntohs(skb->protocol) != 0x8100)) {
dev_kfree_skb(skb);
goto next_rx;
}
skb_checksum_none_assert(skb);
if ((bp->dev->features & NETIF_F_RXCSUM) &&
(status & (L2_FHDR_STATUS_TCP_SEGMENT |
L2_FHDR_STATUS_UDP_DATAGRAM))) {
if (likely((status & (L2_FHDR_ERRORS_TCP_XSUM |
L2_FHDR_ERRORS_UDP_XSUM)) == 0))
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
if ((bp->dev->features & NETIF_F_RXHASH) &&
((status & L2_FHDR_STATUS_USE_RXHASH) ==
L2_FHDR_STATUS_USE_RXHASH))
skb->rxhash = rx_hdr->l2_fhdr_hash;
skb_record_rx_queue(skb, bnapi - &bp->bnx2_napi[0]);
napi_gro_receive(&bnapi->napi, skb);
rx_pkt++;
next_rx:
sw_cons = NEXT_RX_BD(sw_cons);
sw_prod = NEXT_RX_BD(sw_prod);
if ((rx_pkt == budget))
break;
/* Refresh hw_cons to see if there is new work */
if (sw_cons == hw_cons) {
hw_cons = bnx2_get_hw_rx_cons(bnapi);
rmb();
}
}
rxr->rx_cons = sw_cons;
rxr->rx_prod = sw_prod;
if (pg_ring_used)
BNX2_WR16(bp, rxr->rx_pg_bidx_addr, rxr->rx_pg_prod);
BNX2_WR16(bp, rxr->rx_bidx_addr, sw_prod);
BNX2_WR(bp, rxr->rx_bseq_addr, rxr->rx_prod_bseq);
mmiowb();
return rx_pkt;
}
/* MSI ISR - The only difference between this and the INTx ISR
* is that the MSI interrupt is always serviced.
*/
static irqreturn_t
bnx2_msi(int irq, void *dev_instance)
{
struct bnx2_napi *bnapi = dev_instance;
struct bnx2 *bp = bnapi->bp;
prefetch(bnapi->status_blk.msi);
BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
BNX2_PCICFG_INT_ACK_CMD_USE_INT_HC_PARAM |
BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
/* Return here if interrupt is disabled. */
if (unlikely(atomic_read(&bp->intr_sem) != 0))
return IRQ_HANDLED;
napi_schedule(&bnapi->napi);
return IRQ_HANDLED;
}
static irqreturn_t
bnx2_msi_1shot(int irq, void *dev_instance)
{
struct bnx2_napi *bnapi = dev_instance;
struct bnx2 *bp = bnapi->bp;
prefetch(bnapi->status_blk.msi);
/* Return here if interrupt is disabled. */
if (unlikely(atomic_read(&bp->intr_sem) != 0))
return IRQ_HANDLED;
napi_schedule(&bnapi->napi);
return IRQ_HANDLED;
}
static irqreturn_t
bnx2_interrupt(int irq, void *dev_instance)
{
struct bnx2_napi *bnapi = dev_instance;
struct bnx2 *bp = bnapi->bp;
struct status_block *sblk = bnapi->status_blk.msi;
/* When using INTx, it is possible for the interrupt to arrive
* at the CPU before the status block posted prior to the
* interrupt. Reading a register will flush the status block.
* When using MSI, the MSI message will always complete after
* the status block write.
*/
if ((sblk->status_idx == bnapi->last_status_idx) &&
(BNX2_RD(bp, BNX2_PCICFG_MISC_STATUS) &
BNX2_PCICFG_MISC_STATUS_INTA_VALUE))
return IRQ_NONE;
BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
BNX2_PCICFG_INT_ACK_CMD_USE_INT_HC_PARAM |
BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
/* Read back to deassert IRQ immediately to avoid too many
* spurious interrupts.
*/
BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD);
/* Return here if interrupt is shared and is disabled. */
if (unlikely(atomic_read(&bp->intr_sem) != 0))
return IRQ_HANDLED;
if (napi_schedule_prep(&bnapi->napi)) {
bnapi->last_status_idx = sblk->status_idx;
__napi_schedule(&bnapi->napi);
}
return IRQ_HANDLED;
}
static inline int
bnx2_has_fast_work(struct bnx2_napi *bnapi)
{
struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
if ((bnx2_get_hw_rx_cons(bnapi) != rxr->rx_cons) ||
(bnx2_get_hw_tx_cons(bnapi) != txr->hw_tx_cons))
return 1;
return 0;
}
#define STATUS_ATTN_EVENTS (STATUS_ATTN_BITS_LINK_STATE | \
STATUS_ATTN_BITS_TIMER_ABORT)
static inline int
bnx2_has_work(struct bnx2_napi *bnapi)
{
struct status_block *sblk = bnapi->status_blk.msi;
if (bnx2_has_fast_work(bnapi))
return 1;
#ifdef BCM_CNIC
if (bnapi->cnic_present && (bnapi->cnic_tag != sblk->status_idx))
return 1;
#endif
if ((sblk->status_attn_bits & STATUS_ATTN_EVENTS) !=
(sblk->status_attn_bits_ack & STATUS_ATTN_EVENTS))
return 1;
return 0;
}
static void
bnx2_chk_missed_msi(struct bnx2 *bp)
{
struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
u32 msi_ctrl;
if (bnx2_has_work(bnapi)) {
msi_ctrl = BNX2_RD(bp, BNX2_PCICFG_MSI_CONTROL);
if (!(msi_ctrl & BNX2_PCICFG_MSI_CONTROL_ENABLE))
return;
if (bnapi->last_status_idx == bp->idle_chk_status_idx) {
BNX2_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl &
~BNX2_PCICFG_MSI_CONTROL_ENABLE);
BNX2_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl);
bnx2_msi(bp->irq_tbl[0].vector, bnapi);
}
}
bp->idle_chk_status_idx = bnapi->last_status_idx;
}
#ifdef BCM_CNIC
static void bnx2_poll_cnic(struct bnx2 *bp, struct bnx2_napi *bnapi)
{
struct cnic_ops *c_ops;
if (!bnapi->cnic_present)
return;
rcu_read_lock();
c_ops = rcu_dereference(bp->cnic_ops);
if (c_ops)
bnapi->cnic_tag = c_ops->cnic_handler(bp->cnic_data,
bnapi->status_blk.msi);
rcu_read_unlock();
}
#endif
static void bnx2_poll_link(struct bnx2 *bp, struct bnx2_napi *bnapi)
{
struct status_block *sblk = bnapi->status_blk.msi;
u32 status_attn_bits = sblk->status_attn_bits;
u32 status_attn_bits_ack = sblk->status_attn_bits_ack;
if ((status_attn_bits & STATUS_ATTN_EVENTS) !=
(status_attn_bits_ack & STATUS_ATTN_EVENTS)) {
bnx2_phy_int(bp, bnapi);
/* This is needed to take care of transient status
* during link changes.
*/
BNX2_WR(bp, BNX2_HC_COMMAND,
bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
BNX2_RD(bp, BNX2_HC_COMMAND);
}
}
static int bnx2_poll_work(struct bnx2 *bp, struct bnx2_napi *bnapi,
int work_done, int budget)
{
struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
if (bnx2_get_hw_tx_cons(bnapi) != txr->hw_tx_cons)
bnx2_tx_int(bp, bnapi, 0);
if (bnx2_get_hw_rx_cons(bnapi) != rxr->rx_cons)
work_done += bnx2_rx_int(bp, bnapi, budget - work_done);
return work_done;
}
static int bnx2_poll_msix(struct napi_struct *napi, int budget)
{
struct bnx2_napi *bnapi = container_of(napi, struct bnx2_napi, napi);
struct bnx2 *bp = bnapi->bp;
int work_done = 0;
struct status_block_msix *sblk = bnapi->status_blk.msix;
while (1) {
work_done = bnx2_poll_work(bp, bnapi, work_done, budget);
if (unlikely(work_done >= budget))
break;
bnapi->last_status_idx = sblk->status_idx;
/* status idx must be read before checking for more work. */
rmb();
if (likely(!bnx2_has_fast_work(bnapi))) {
napi_complete(napi);
BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
bnapi->last_status_idx);
break;
}
}
return work_done;
}
static int bnx2_poll(struct napi_struct *napi, int budget)
{
struct bnx2_napi *bnapi = container_of(napi, struct bnx2_napi, napi);
struct bnx2 *bp = bnapi->bp;
int work_done = 0;
struct status_block *sblk = bnapi->status_blk.msi;
while (1) {
bnx2_poll_link(bp, bnapi);
work_done = bnx2_poll_work(bp, bnapi, work_done, budget);
#ifdef BCM_CNIC
bnx2_poll_cnic(bp, bnapi);
#endif
/* bnapi->last_status_idx is used below to tell the hw how
* much work has been processed, so we must read it before
* checking for more work.
*/
bnapi->last_status_idx = sblk->status_idx;
if (unlikely(work_done >= budget))
break;
rmb();
if (likely(!bnx2_has_work(bnapi))) {
napi_complete(napi);
if (likely(bp->flags & BNX2_FLAG_USING_MSI_OR_MSIX)) {
BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
bnapi->last_status_idx);
break;
}
BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
BNX2_PCICFG_INT_ACK_CMD_MASK_INT |
bnapi->last_status_idx);
BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
bnapi->last_status_idx);
break;
}
}
return work_done;
}
/* Called with rtnl_lock from vlan functions and also netif_tx_lock
* from set_multicast.
*/
static void
bnx2_set_rx_mode(struct net_device *dev)
{
struct bnx2 *bp = netdev_priv(dev);
u32 rx_mode, sort_mode;
struct netdev_hw_addr *ha;
int i;
if (!netif_running(dev))
return;
spin_lock_bh(&bp->phy_lock);
rx_mode = bp->rx_mode & ~(BNX2_EMAC_RX_MODE_PROMISCUOUS |
BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG);
sort_mode = 1 | BNX2_RPM_SORT_USER0_BC_EN;
if (!(dev->features & NETIF_F_HW_VLAN_RX) &&
(bp->flags & BNX2_FLAG_CAN_KEEP_VLAN))
rx_mode |= BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG;
if (dev->flags & IFF_PROMISC) {
/* Promiscuous mode. */
rx_mode |= BNX2_EMAC_RX_MODE_PROMISCUOUS;
sort_mode |= BNX2_RPM_SORT_USER0_PROM_EN |
BNX2_RPM_SORT_USER0_PROM_VLAN;
}
else if (dev->flags & IFF_ALLMULTI) {
for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {
BNX2_WR(bp, BNX2_EMAC_MULTICAST_HASH0 + (i * 4),
0xffffffff);
}
sort_mode |= BNX2_RPM_SORT_USER0_MC_EN;
}
else {
/* Accept one or more multicast(s). */
u32 mc_filter[NUM_MC_HASH_REGISTERS];
u32 regidx;
u32 bit;
u32 crc;
memset(mc_filter, 0, 4 * NUM_MC_HASH_REGISTERS);
netdev_for_each_mc_addr(ha, dev) {
crc = ether_crc_le(ETH_ALEN, ha->addr);
bit = crc & 0xff;
regidx = (bit & 0xe0) >> 5;
bit &= 0x1f;
mc_filter[regidx] |= (1 << bit);
}
for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {
BNX2_WR(bp, BNX2_EMAC_MULTICAST_HASH0 + (i * 4),
mc_filter[i]);
}
sort_mode |= BNX2_RPM_SORT_USER0_MC_HSH_EN;
}
if (netdev_uc_count(dev) > BNX2_MAX_UNICAST_ADDRESSES) {
rx_mode |= BNX2_EMAC_RX_MODE_PROMISCUOUS;
sort_mode |= BNX2_RPM_SORT_USER0_PROM_EN |
BNX2_RPM_SORT_USER0_PROM_VLAN;
} else if (!(dev->flags & IFF_PROMISC)) {
/* Add all entries into to the match filter list */
i = 0;
netdev_for_each_uc_addr(ha, dev) {
bnx2_set_mac_addr(bp, ha->addr,
i + BNX2_START_UNICAST_ADDRESS_INDEX);
sort_mode |= (1 <<
(i + BNX2_START_UNICAST_ADDRESS_INDEX));
i++;
}
}
if (rx_mode != bp->rx_mode) {
bp->rx_mode = rx_mode;
BNX2_WR(bp, BNX2_EMAC_RX_MODE, rx_mode);
}
BNX2_WR(bp, BNX2_RPM_SORT_USER0, 0x0);
BNX2_WR(bp, BNX2_RPM_SORT_USER0, sort_mode);
BNX2_WR(bp, BNX2_RPM_SORT_USER0, sort_mode | BNX2_RPM_SORT_USER0_ENA);
spin_unlock_bh(&bp->phy_lock);
}
static int
check_fw_section(const struct firmware *fw,
const struct bnx2_fw_file_section *section,
u32 alignment, bool non_empty)
{
u32 offset = be32_to_cpu(section->offset);
u32 len = be32_to_cpu(section->len);
if ((offset == 0 && len != 0) || offset >= fw->size || offset & 3)
return -EINVAL;
if ((non_empty && len == 0) || len > fw->size - offset ||
len & (alignment - 1))
return -EINVAL;
return 0;
}
static int
check_mips_fw_entry(const struct firmware *fw,
const struct bnx2_mips_fw_file_entry *entry)
{
if (check_fw_section(fw, &entry->text, 4, true) ||
check_fw_section(fw, &entry->data, 4, false) ||
check_fw_section(fw, &entry->rodata, 4, false))
return -EINVAL;
return 0;
}
static void bnx2_release_firmware(struct bnx2 *bp)
{
if (bp->rv2p_firmware) {
release_firmware(bp->mips_firmware);
release_firmware(bp->rv2p_firmware);
bp->rv2p_firmware = NULL;
}
}
static int bnx2_request_uncached_firmware(struct bnx2 *bp)
{
const char *mips_fw_file, *rv2p_fw_file;
const struct bnx2_mips_fw_file *mips_fw;
const struct bnx2_rv2p_fw_file *rv2p_fw;
int rc;
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
mips_fw_file = FW_MIPS_FILE_09;
if ((CHIP_ID(bp) == CHIP_ID_5709_A0) ||
(CHIP_ID(bp) == CHIP_ID_5709_A1))
rv2p_fw_file = FW_RV2P_FILE_09_Ax;
else
rv2p_fw_file = FW_RV2P_FILE_09;
} else {
mips_fw_file = FW_MIPS_FILE_06;
rv2p_fw_file = FW_RV2P_FILE_06;
}
rc = request_firmware(&bp->mips_firmware, mips_fw_file, &bp->pdev->dev);
if (rc) {
pr_err("Can't load firmware file \"%s\"\n", mips_fw_file);
goto out;
}
rc = request_firmware(&bp->rv2p_firmware, rv2p_fw_file, &bp->pdev->dev);
if (rc) {
pr_err("Can't load firmware file \"%s\"\n", rv2p_fw_file);
goto err_release_mips_firmware;
}
mips_fw = (const struct bnx2_mips_fw_file *) bp->mips_firmware->data;
rv2p_fw = (const struct bnx2_rv2p_fw_file *) bp->rv2p_firmware->data;
if (bp->mips_firmware->size < sizeof(*mips_fw) ||
check_mips_fw_entry(bp->mips_firmware, &mips_fw->com) ||
check_mips_fw_entry(bp->mips_firmware, &mips_fw->cp) ||
check_mips_fw_entry(bp->mips_firmware, &mips_fw->rxp) ||
check_mips_fw_entry(bp->mips_firmware, &mips_fw->tpat) ||
check_mips_fw_entry(bp->mips_firmware, &mips_fw->txp)) {
pr_err("Firmware file \"%s\" is invalid\n", mips_fw_file);
rc = -EINVAL;
goto err_release_firmware;
}
if (bp->rv2p_firmware->size < sizeof(*rv2p_fw) ||
check_fw_section(bp->rv2p_firmware, &rv2p_fw->proc1.rv2p, 8, true) ||
check_fw_section(bp->rv2p_firmware, &rv2p_fw->proc2.rv2p, 8, true)) {
pr_err("Firmware file \"%s\" is invalid\n", rv2p_fw_file);
rc = -EINVAL;
goto err_release_firmware;
}
out:
return rc;
err_release_firmware:
release_firmware(bp->rv2p_firmware);
bp->rv2p_firmware = NULL;
err_release_mips_firmware:
release_firmware(bp->mips_firmware);
goto out;
}
static int bnx2_request_firmware(struct bnx2 *bp)
{
return bp->rv2p_firmware ? 0 : bnx2_request_uncached_firmware(bp);
}
static u32
rv2p_fw_fixup(u32 rv2p_proc, int idx, u32 loc, u32 rv2p_code)
{
switch (idx) {
case RV2P_P1_FIXUP_PAGE_SIZE_IDX:
rv2p_code &= ~RV2P_BD_PAGE_SIZE_MSK;
rv2p_code |= RV2P_BD_PAGE_SIZE;
break;
}
return rv2p_code;
}
static int
load_rv2p_fw(struct bnx2 *bp, u32 rv2p_proc,
const struct bnx2_rv2p_fw_file_entry *fw_entry)
{
u32 rv2p_code_len, file_offset;
__be32 *rv2p_code;
int i;
u32 val, cmd, addr;
rv2p_code_len = be32_to_cpu(fw_entry->rv2p.len);
file_offset = be32_to_cpu(fw_entry->rv2p.offset);
rv2p_code = (__be32 *)(bp->rv2p_firmware->data + file_offset);
if (rv2p_proc == RV2P_PROC1) {
cmd = BNX2_RV2P_PROC1_ADDR_CMD_RDWR;
addr = BNX2_RV2P_PROC1_ADDR_CMD;
} else {
cmd = BNX2_RV2P_PROC2_ADDR_CMD_RDWR;
addr = BNX2_RV2P_PROC2_ADDR_CMD;
}
for (i = 0; i < rv2p_code_len; i += 8) {
BNX2_WR(bp, BNX2_RV2P_INSTR_HIGH, be32_to_cpu(*rv2p_code));
rv2p_code++;
BNX2_WR(bp, BNX2_RV2P_INSTR_LOW, be32_to_cpu(*rv2p_code));
rv2p_code++;
val = (i / 8) | cmd;
BNX2_WR(bp, addr, val);
}
rv2p_code = (__be32 *)(bp->rv2p_firmware->data + file_offset);
for (i = 0; i < 8; i++) {
u32 loc, code;
loc = be32_to_cpu(fw_entry->fixup[i]);
if (loc && ((loc * 4) < rv2p_code_len)) {
code = be32_to_cpu(*(rv2p_code + loc - 1));
BNX2_WR(bp, BNX2_RV2P_INSTR_HIGH, code);
code = be32_to_cpu(*(rv2p_code + loc));
code = rv2p_fw_fixup(rv2p_proc, i, loc, code);
BNX2_WR(bp, BNX2_RV2P_INSTR_LOW, code);
val = (loc / 2) | cmd;
BNX2_WR(bp, addr, val);
}
}
/* Reset the processor, un-stall is done later. */
if (rv2p_proc == RV2P_PROC1) {
BNX2_WR(bp, BNX2_RV2P_COMMAND, BNX2_RV2P_COMMAND_PROC1_RESET);
}
else {
BNX2_WR(bp, BNX2_RV2P_COMMAND, BNX2_RV2P_COMMAND_PROC2_RESET);
}
return 0;
}
static int
load_cpu_fw(struct bnx2 *bp, const struct cpu_reg *cpu_reg,
const struct bnx2_mips_fw_file_entry *fw_entry)
{
u32 addr, len, file_offset;
__be32 *data;
u32 offset;
u32 val;
/* Halt the CPU. */
val = bnx2_reg_rd_ind(bp, cpu_reg->mode);
val |= cpu_reg->mode_value_halt;
bnx2_reg_wr_ind(bp, cpu_reg->mode, val);
bnx2_reg_wr_ind(bp, cpu_reg->state, cpu_reg->state_value_clear);
/* Load the Text area. */
addr = be32_to_cpu(fw_entry->text.addr);
len = be32_to_cpu(fw_entry->text.len);
file_offset = be32_to_cpu(fw_entry->text.offset);
data = (__be32 *)(bp->mips_firmware->data + file_offset);
offset = cpu_reg->spad_base + (addr - cpu_reg->mips_view_base);
if (len) {
int j;
for (j = 0; j < (len / 4); j++, offset += 4)
bnx2_reg_wr_ind(bp, offset, be32_to_cpu(data[j]));
}
/* Load the Data area. */
addr = be32_to_cpu(fw_entry->data.addr);
len = be32_to_cpu(fw_entry->data.len);
file_offset = be32_to_cpu(fw_entry->data.offset);
data = (__be32 *)(bp->mips_firmware->data + file_offset);
offset = cpu_reg->spad_base + (addr - cpu_reg->mips_view_base);
if (len) {
int j;
for (j = 0; j < (len / 4); j++, offset += 4)
bnx2_reg_wr_ind(bp, offset, be32_to_cpu(data[j]));
}
/* Load the Read-Only area. */
addr = be32_to_cpu(fw_entry->rodata.addr);
len = be32_to_cpu(fw_entry->rodata.len);
file_offset = be32_to_cpu(fw_entry->rodata.offset);
data = (__be32 *)(bp->mips_firmware->data + file_offset);
offset = cpu_reg->spad_base + (addr - cpu_reg->mips_view_base);
if (len) {
int j;
for (j = 0; j < (len / 4); j++, offset += 4)
bnx2_reg_wr_ind(bp, offset, be32_to_cpu(data[j]));
}
/* Clear the pre-fetch instruction. */
bnx2_reg_wr_ind(bp, cpu_reg->inst, 0);
val = be32_to_cpu(fw_entry->start_addr);
bnx2_reg_wr_ind(bp, cpu_reg->pc, val);
/* Start the CPU. */
val = bnx2_reg_rd_ind(bp, cpu_reg->mode);
val &= ~cpu_reg->mode_value_halt;
bnx2_reg_wr_ind(bp, cpu_reg->state, cpu_reg->state_value_clear);
bnx2_reg_wr_ind(bp, cpu_reg->mode, val);
return 0;
}
static int
bnx2_init_cpus(struct bnx2 *bp)
{
const struct bnx2_mips_fw_file *mips_fw =
(const struct bnx2_mips_fw_file *) bp->mips_firmware->data;
const struct bnx2_rv2p_fw_file *rv2p_fw =
(const struct bnx2_rv2p_fw_file *) bp->rv2p_firmware->data;
int rc;
/* Initialize the RV2P processor. */
load_rv2p_fw(bp, RV2P_PROC1, &rv2p_fw->proc1);
load_rv2p_fw(bp, RV2P_PROC2, &rv2p_fw->proc2);
/* Initialize the RX Processor. */
rc = load_cpu_fw(bp, &cpu_reg_rxp, &mips_fw->rxp);
if (rc)
goto init_cpu_err;
/* Initialize the TX Processor. */
rc = load_cpu_fw(bp, &cpu_reg_txp, &mips_fw->txp);
if (rc)
goto init_cpu_err;
/* Initialize the TX Patch-up Processor. */
rc = load_cpu_fw(bp, &cpu_reg_tpat, &mips_fw->tpat);
if (rc)
goto init_cpu_err;
/* Initialize the Completion Processor. */
rc = load_cpu_fw(bp, &cpu_reg_com, &mips_fw->com);
if (rc)
goto init_cpu_err;
/* Initialize the Command Processor. */
rc = load_cpu_fw(bp, &cpu_reg_cp, &mips_fw->cp);
init_cpu_err:
return rc;
}
static int
bnx2_set_power_state(struct bnx2 *bp, pci_power_t state)
{
u16 pmcsr;
pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &pmcsr);
switch (state) {
case PCI_D0: {
u32 val;
pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL,
(pmcsr & ~PCI_PM_CTRL_STATE_MASK) |
PCI_PM_CTRL_PME_STATUS);
if (pmcsr & PCI_PM_CTRL_STATE_MASK)
/* delay required during transition out of D3hot */
msleep(20);
val = BNX2_RD(bp, BNX2_EMAC_MODE);
val |= BNX2_EMAC_MODE_MPKT_RCVD | BNX2_EMAC_MODE_ACPI_RCVD;
val &= ~BNX2_EMAC_MODE_MPKT;
BNX2_WR(bp, BNX2_EMAC_MODE, val);
val = BNX2_RD(bp, BNX2_RPM_CONFIG);
val &= ~BNX2_RPM_CONFIG_ACPI_ENA;
BNX2_WR(bp, BNX2_RPM_CONFIG, val);
break;
}
case PCI_D3hot: {
int i;
u32 val, wol_msg;
if (bp->wol) {
u32 advertising;
u8 autoneg;
autoneg = bp->autoneg;
advertising = bp->advertising;
if (bp->phy_port == PORT_TP) {
bp->autoneg = AUTONEG_SPEED;
bp->advertising = ADVERTISED_10baseT_Half |
ADVERTISED_10baseT_Full |
ADVERTISED_100baseT_Half |
ADVERTISED_100baseT_Full |
ADVERTISED_Autoneg;
}
spin_lock_bh(&bp->phy_lock);
bnx2_setup_phy(bp, bp->phy_port);
spin_unlock_bh(&bp->phy_lock);
bp->autoneg = autoneg;
bp->advertising = advertising;
bnx2_set_mac_addr(bp, bp->dev->dev_addr, 0);
val = BNX2_RD(bp, BNX2_EMAC_MODE);
/* Enable port mode. */
val &= ~BNX2_EMAC_MODE_PORT;
val |= BNX2_EMAC_MODE_MPKT_RCVD |
BNX2_EMAC_MODE_ACPI_RCVD |
BNX2_EMAC_MODE_MPKT;
if (bp->phy_port == PORT_TP)
val |= BNX2_EMAC_MODE_PORT_MII;
else {
val |= BNX2_EMAC_MODE_PORT_GMII;
if (bp->line_speed == SPEED_2500)
val |= BNX2_EMAC_MODE_25G_MODE;
}
BNX2_WR(bp, BNX2_EMAC_MODE, val);
/* receive all multicast */
for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {
BNX2_WR(bp, BNX2_EMAC_MULTICAST_HASH0 + (i * 4),
0xffffffff);
}
BNX2_WR(bp, BNX2_EMAC_RX_MODE,
BNX2_EMAC_RX_MODE_SORT_MODE);
val = 1 | BNX2_RPM_SORT_USER0_BC_EN |
BNX2_RPM_SORT_USER0_MC_EN;
BNX2_WR(bp, BNX2_RPM_SORT_USER0, 0x0);
BNX2_WR(bp, BNX2_RPM_SORT_USER0, val);
BNX2_WR(bp, BNX2_RPM_SORT_USER0, val |
BNX2_RPM_SORT_USER0_ENA);
/* Need to enable EMAC and RPM for WOL. */
BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS,
BNX2_MISC_ENABLE_SET_BITS_RX_PARSER_MAC_ENABLE |
BNX2_MISC_ENABLE_SET_BITS_TX_HEADER_Q_ENABLE |
BNX2_MISC_ENABLE_SET_BITS_EMAC_ENABLE);
val = BNX2_RD(bp, BNX2_RPM_CONFIG);
val &= ~BNX2_RPM_CONFIG_ACPI_ENA;
BNX2_WR(bp, BNX2_RPM_CONFIG, val);
wol_msg = BNX2_DRV_MSG_CODE_SUSPEND_WOL;
}
else {
wol_msg = BNX2_DRV_MSG_CODE_SUSPEND_NO_WOL;
}
if (!(bp->flags & BNX2_FLAG_NO_WOL))
bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT3 | wol_msg,
1, 0);
pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
if ((CHIP_ID(bp) == CHIP_ID_5706_A0) ||
(CHIP_ID(bp) == CHIP_ID_5706_A1)) {
if (bp->wol)
pmcsr |= 3;
}
else {
pmcsr |= 3;
}
if (bp->wol) {
pmcsr |= PCI_PM_CTRL_PME_ENABLE;
}
pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL,
pmcsr);
/* No more memory access after this point until
* device is brought back to D0.
*/
udelay(50);
break;
}
default:
return -EINVAL;
}
return 0;
}
static int
bnx2_acquire_nvram_lock(struct bnx2 *bp)
{
u32 val;
int j;
/* Request access to the flash interface. */
BNX2_WR(bp, BNX2_NVM_SW_ARB, BNX2_NVM_SW_ARB_ARB_REQ_SET2);
for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
val = BNX2_RD(bp, BNX2_NVM_SW_ARB);
if (val & BNX2_NVM_SW_ARB_ARB_ARB2)
break;
udelay(5);
}
if (j >= NVRAM_TIMEOUT_COUNT)
return -EBUSY;
return 0;
}
static int
bnx2_release_nvram_lock(struct bnx2 *bp)
{
int j;
u32 val;
/* Relinquish nvram interface. */
BNX2_WR(bp, BNX2_NVM_SW_ARB, BNX2_NVM_SW_ARB_ARB_REQ_CLR2);
for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
val = BNX2_RD(bp, BNX2_NVM_SW_ARB);
if (!(val & BNX2_NVM_SW_ARB_ARB_ARB2))
break;
udelay(5);
}
if (j >= NVRAM_TIMEOUT_COUNT)
return -EBUSY;
return 0;
}
static int
bnx2_enable_nvram_write(struct bnx2 *bp)
{
u32 val;
val = BNX2_RD(bp, BNX2_MISC_CFG);
BNX2_WR(bp, BNX2_MISC_CFG, val | BNX2_MISC_CFG_NVM_WR_EN_PCI);
if (bp->flash_info->flags & BNX2_NV_WREN) {
int j;
BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);
BNX2_WR(bp, BNX2_NVM_COMMAND,
BNX2_NVM_COMMAND_WREN | BNX2_NVM_COMMAND_DOIT);
for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
udelay(5);
val = BNX2_RD(bp, BNX2_NVM_COMMAND);
if (val & BNX2_NVM_COMMAND_DONE)
break;
}
if (j >= NVRAM_TIMEOUT_COUNT)
return -EBUSY;
}
return 0;
}
static void
bnx2_disable_nvram_write(struct bnx2 *bp)
{
u32 val;
val = BNX2_RD(bp, BNX2_MISC_CFG);
BNX2_WR(bp, BNX2_MISC_CFG, val & ~BNX2_MISC_CFG_NVM_WR_EN);
}
static void
bnx2_enable_nvram_access(struct bnx2 *bp)
{
u32 val;
val = BNX2_RD(bp, BNX2_NVM_ACCESS_ENABLE);
/* Enable both bits, even on read. */
BNX2_WR(bp, BNX2_NVM_ACCESS_ENABLE,
val | BNX2_NVM_ACCESS_ENABLE_EN | BNX2_NVM_ACCESS_ENABLE_WR_EN);
}
static void
bnx2_disable_nvram_access(struct bnx2 *bp)
{
u32 val;
val = BNX2_RD(bp, BNX2_NVM_ACCESS_ENABLE);
/* Disable both bits, even after read. */
BNX2_WR(bp, BNX2_NVM_ACCESS_ENABLE,
val & ~(BNX2_NVM_ACCESS_ENABLE_EN |
BNX2_NVM_ACCESS_ENABLE_WR_EN));
}
static int
bnx2_nvram_erase_page(struct bnx2 *bp, u32 offset)
{
u32 cmd;
int j;
if (bp->flash_info->flags & BNX2_NV_BUFFERED)
/* Buffered flash, no erase needed */
return 0;
/* Build an erase command */
cmd = BNX2_NVM_COMMAND_ERASE | BNX2_NVM_COMMAND_WR |
BNX2_NVM_COMMAND_DOIT;
/* Need to clear DONE bit separately. */
BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);
/* Address of the NVRAM to read from. */
BNX2_WR(bp, BNX2_NVM_ADDR, offset & BNX2_NVM_ADDR_NVM_ADDR_VALUE);
/* Issue an erase command. */
BNX2_WR(bp, BNX2_NVM_COMMAND, cmd);
/* Wait for completion. */
for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
u32 val;
udelay(5);
val = BNX2_RD(bp, BNX2_NVM_COMMAND);
if (val & BNX2_NVM_COMMAND_DONE)
break;
}
if (j >= NVRAM_TIMEOUT_COUNT)
return -EBUSY;
return 0;
}
static int
bnx2_nvram_read_dword(struct bnx2 *bp, u32 offset, u8 *ret_val, u32 cmd_flags)
{
u32 cmd;
int j;
/* Build the command word. */
cmd = BNX2_NVM_COMMAND_DOIT | cmd_flags;
/* Calculate an offset of a buffered flash, not needed for 5709. */
if (bp->flash_info->flags & BNX2_NV_TRANSLATE) {
offset = ((offset / bp->flash_info->page_size) <<
bp->flash_info->page_bits) +
(offset % bp->flash_info->page_size);
}
/* Need to clear DONE bit separately. */
BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);
/* Address of the NVRAM to read from. */
BNX2_WR(bp, BNX2_NVM_ADDR, offset & BNX2_NVM_ADDR_NVM_ADDR_VALUE);
/* Issue a read command. */
BNX2_WR(bp, BNX2_NVM_COMMAND, cmd);
/* Wait for completion. */
for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
u32 val;
udelay(5);
val = BNX2_RD(bp, BNX2_NVM_COMMAND);
if (val & BNX2_NVM_COMMAND_DONE) {
__be32 v = cpu_to_be32(BNX2_RD(bp, BNX2_NVM_READ));
memcpy(ret_val, &v, 4);
break;
}
}
if (j >= NVRAM_TIMEOUT_COUNT)
return -EBUSY;
return 0;
}
static int
bnx2_nvram_write_dword(struct bnx2 *bp, u32 offset, u8 *val, u32 cmd_flags)
{
u32 cmd;
__be32 val32;
int j;
/* Build the command word. */
cmd = BNX2_NVM_COMMAND_DOIT | BNX2_NVM_COMMAND_WR | cmd_flags;
/* Calculate an offset of a buffered flash, not needed for 5709. */
if (bp->flash_info->flags & BNX2_NV_TRANSLATE) {
offset = ((offset / bp->flash_info->page_size) <<
bp->flash_info->page_bits) +
(offset % bp->flash_info->page_size);
}
/* Need to clear DONE bit separately. */
BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);
memcpy(&val32, val, 4);
/* Write the data. */
BNX2_WR(bp, BNX2_NVM_WRITE, be32_to_cpu(val32));
/* Address of the NVRAM to write to. */
BNX2_WR(bp, BNX2_NVM_ADDR, offset & BNX2_NVM_ADDR_NVM_ADDR_VALUE);
/* Issue the write command. */
BNX2_WR(bp, BNX2_NVM_COMMAND, cmd);
/* Wait for completion. */
for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
udelay(5);
if (BNX2_RD(bp, BNX2_NVM_COMMAND) & BNX2_NVM_COMMAND_DONE)
break;
}
if (j >= NVRAM_TIMEOUT_COUNT)
return -EBUSY;
return 0;
}
static int
bnx2_init_nvram(struct bnx2 *bp)
{
u32 val;
int j, entry_count, rc = 0;
const struct flash_spec *flash;
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
bp->flash_info = &flash_5709;
goto get_flash_size;
}
/* Determine the selected interface. */
val = BNX2_RD(bp, BNX2_NVM_CFG1);
entry_count = ARRAY_SIZE(flash_table);
if (val & 0x40000000) {
/* Flash interface has been reconfigured */
for (j = 0, flash = &flash_table[0]; j < entry_count;
j++, flash++) {
if ((val & FLASH_BACKUP_STRAP_MASK) ==
(flash->config1 & FLASH_BACKUP_STRAP_MASK)) {
bp->flash_info = flash;
break;
}
}
}
else {
u32 mask;
/* Not yet been reconfigured */
if (val & (1 << 23))
mask = FLASH_BACKUP_STRAP_MASK;
else
mask = FLASH_STRAP_MASK;
for (j = 0, flash = &flash_table[0]; j < entry_count;
j++, flash++) {
if ((val & mask) == (flash->strapping & mask)) {
bp->flash_info = flash;
/* Request access to the flash interface. */
if ((rc = bnx2_acquire_nvram_lock(bp)) != 0)
return rc;
/* Enable access to flash interface */
bnx2_enable_nvram_access(bp);
/* Reconfigure the flash interface */
BNX2_WR(bp, BNX2_NVM_CFG1, flash->config1);
BNX2_WR(bp, BNX2_NVM_CFG2, flash->config2);
BNX2_WR(bp, BNX2_NVM_CFG3, flash->config3);
BNX2_WR(bp, BNX2_NVM_WRITE1, flash->write1);
/* Disable access to flash interface */
bnx2_disable_nvram_access(bp);
bnx2_release_nvram_lock(bp);
break;
}
}
} /* if (val & 0x40000000) */
if (j == entry_count) {
bp->flash_info = NULL;
pr_alert("Unknown flash/EEPROM type\n");
return -ENODEV;
}
get_flash_size:
val = bnx2_shmem_rd(bp, BNX2_SHARED_HW_CFG_CONFIG2);
val &= BNX2_SHARED_HW_CFG2_NVM_SIZE_MASK;
if (val)
bp->flash_size = val;
else
bp->flash_size = bp->flash_info->total_size;
return rc;
}
static int
bnx2_nvram_read(struct bnx2 *bp, u32 offset, u8 *ret_buf,
int buf_size)
{
int rc = 0;
u32 cmd_flags, offset32, len32, extra;
if (buf_size == 0)
return 0;
/* Request access to the flash interface. */
if ((rc = bnx2_acquire_nvram_lock(bp)) != 0)
return rc;
/* Enable access to flash interface */
bnx2_enable_nvram_access(bp);
len32 = buf_size;
offset32 = offset;
extra = 0;
cmd_flags = 0;
if (offset32 & 3) {
u8 buf[4];
u32 pre_len;
offset32 &= ~3;
pre_len = 4 - (offset & 3);
if (pre_len >= len32) {
pre_len = len32;
cmd_flags = BNX2_NVM_COMMAND_FIRST |
BNX2_NVM_COMMAND_LAST;
}
else {
cmd_flags = BNX2_NVM_COMMAND_FIRST;
}
rc = bnx2_nvram_read_dword(bp, offset32, buf, cmd_flags);
if (rc)
return rc;
memcpy(ret_buf, buf + (offset & 3), pre_len);
offset32 += 4;
ret_buf += pre_len;
len32 -= pre_len;
}
if (len32 & 3) {
extra = 4 - (len32 & 3);
len32 = (len32 + 4) & ~3;
}
if (len32 == 4) {
u8 buf[4];
if (cmd_flags)
cmd_flags = BNX2_NVM_COMMAND_LAST;
else
cmd_flags = BNX2_NVM_COMMAND_FIRST |
BNX2_NVM_COMMAND_LAST;
rc = bnx2_nvram_read_dword(bp, offset32, buf, cmd_flags);
memcpy(ret_buf, buf, 4 - extra);
}
else if (len32 > 0) {
u8 buf[4];
/* Read the first word. */
if (cmd_flags)
cmd_flags = 0;
else
cmd_flags = BNX2_NVM_COMMAND_FIRST;
rc = bnx2_nvram_read_dword(bp, offset32, ret_buf, cmd_flags);
/* Advance to the next dword. */
offset32 += 4;
ret_buf += 4;
len32 -= 4;
while (len32 > 4 && rc == 0) {
rc = bnx2_nvram_read_dword(bp, offset32, ret_buf, 0);
/* Advance to the next dword. */
offset32 += 4;
ret_buf += 4;
len32 -= 4;
}
if (rc)
return rc;
cmd_flags = BNX2_NVM_COMMAND_LAST;
rc = bnx2_nvram_read_dword(bp, offset32, buf, cmd_flags);
memcpy(ret_buf, buf, 4 - extra);
}
/* Disable access to flash interface */
bnx2_disable_nvram_access(bp);
bnx2_release_nvram_lock(bp);
return rc;
}
static int
bnx2_nvram_write(struct bnx2 *bp, u32 offset, u8 *data_buf,
int buf_size)
{
u32 written, offset32, len32;
u8 *buf, start[4], end[4], *align_buf = NULL, *flash_buffer = NULL;
int rc = 0;
int align_start, align_end;
buf = data_buf;
offset32 = offset;
len32 = buf_size;
align_start = align_end = 0;
if ((align_start = (offset32 & 3))) {
offset32 &= ~3;
len32 += align_start;
if (len32 < 4)
len32 = 4;
if ((rc = bnx2_nvram_read(bp, offset32, start, 4)))
return rc;
}
if (len32 & 3) {
align_end = 4 - (len32 & 3);
len32 += align_end;
if ((rc = bnx2_nvram_read(bp, offset32 + len32 - 4, end, 4)))
return rc;
}
if (align_start || align_end) {
align_buf = kmalloc(len32, GFP_KERNEL);
if (align_buf == NULL)
return -ENOMEM;
if (align_start) {
memcpy(align_buf, start, 4);
}
if (align_end) {
memcpy(align_buf + len32 - 4, end, 4);
}
memcpy(align_buf + align_start, data_buf, buf_size);
buf = align_buf;
}
if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {
flash_buffer = kmalloc(264, GFP_KERNEL);
if (flash_buffer == NULL) {
rc = -ENOMEM;
goto nvram_write_end;
}
}
written = 0;
while ((written < len32) && (rc == 0)) {
u32 page_start, page_end, data_start, data_end;
u32 addr, cmd_flags;
int i;
/* Find the page_start addr */
page_start = offset32 + written;
page_start -= (page_start % bp->flash_info->page_size);
/* Find the page_end addr */
page_end = page_start + bp->flash_info->page_size;
/* Find the data_start addr */
data_start = (written == 0) ? offset32 : page_start;
/* Find the data_end addr */
data_end = (page_end > offset32 + len32) ?
(offset32 + len32) : page_end;
/* Request access to the flash interface. */
if ((rc = bnx2_acquire_nvram_lock(bp)) != 0)
goto nvram_write_end;
/* Enable access to flash interface */
bnx2_enable_nvram_access(bp);
cmd_flags = BNX2_NVM_COMMAND_FIRST;
if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {
int j;
/* Read the whole page into the buffer
* (non-buffer flash only) */
for (j = 0; j < bp->flash_info->page_size; j += 4) {
if (j == (bp->flash_info->page_size - 4)) {
cmd_flags |= BNX2_NVM_COMMAND_LAST;
}
rc = bnx2_nvram_read_dword(bp,
page_start + j,
&flash_buffer[j],
cmd_flags);
if (rc)
goto nvram_write_end;
cmd_flags = 0;
}
}
/* Enable writes to flash interface (unlock write-protect) */
if ((rc = bnx2_enable_nvram_write(bp)) != 0)
goto nvram_write_end;
/* Loop to write back the buffer data from page_start to
* data_start */
i = 0;
if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {
/* Erase the page */
if ((rc = bnx2_nvram_erase_page(bp, page_start)) != 0)
goto nvram_write_end;
/* Re-enable the write again for the actual write */
bnx2_enable_nvram_write(bp);
for (addr = page_start; addr < data_start;
addr += 4, i += 4) {
rc = bnx2_nvram_write_dword(bp, addr,
&flash_buffer[i], cmd_flags);
if (rc != 0)
goto nvram_write_end;
cmd_flags = 0;
}
}
/* Loop to write the new data from data_start to data_end */
for (addr = data_start; addr < data_end; addr += 4, i += 4) {
if ((addr == page_end - 4) ||
((bp->flash_info->flags & BNX2_NV_BUFFERED) &&
(addr == data_end - 4))) {
cmd_flags |= BNX2_NVM_COMMAND_LAST;
}
rc = bnx2_nvram_write_dword(bp, addr, buf,
cmd_flags);
if (rc != 0)
goto nvram_write_end;
cmd_flags = 0;
buf += 4;
}
/* Loop to write back the buffer data from data_end
* to page_end */
if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {
for (addr = data_end; addr < page_end;
addr += 4, i += 4) {
if (addr == page_end-4) {
cmd_flags = BNX2_NVM_COMMAND_LAST;
}
rc = bnx2_nvram_write_dword(bp, addr,
&flash_buffer[i], cmd_flags);
if (rc != 0)
goto nvram_write_end;
cmd_flags = 0;
}
}
/* Disable writes to flash interface (lock write-protect) */
bnx2_disable_nvram_write(bp);
/* Disable access to flash interface */
bnx2_disable_nvram_access(bp);
bnx2_release_nvram_lock(bp);
/* Increment written */
written += data_end - data_start;
}
nvram_write_end:
kfree(flash_buffer);
kfree(align_buf);
return rc;
}
static void
bnx2_init_fw_cap(struct bnx2 *bp)
{
u32 val, sig = 0;
bp->phy_flags &= ~BNX2_PHY_FLAG_REMOTE_PHY_CAP;
bp->flags &= ~BNX2_FLAG_CAN_KEEP_VLAN;
if (!(bp->flags & BNX2_FLAG_ASF_ENABLE))
bp->flags |= BNX2_FLAG_CAN_KEEP_VLAN;
val = bnx2_shmem_rd(bp, BNX2_FW_CAP_MB);
if ((val & BNX2_FW_CAP_SIGNATURE_MASK) != BNX2_FW_CAP_SIGNATURE)
return;
if ((val & BNX2_FW_CAP_CAN_KEEP_VLAN) == BNX2_FW_CAP_CAN_KEEP_VLAN) {
bp->flags |= BNX2_FLAG_CAN_KEEP_VLAN;
sig |= BNX2_DRV_ACK_CAP_SIGNATURE | BNX2_FW_CAP_CAN_KEEP_VLAN;
}
if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&
(val & BNX2_FW_CAP_REMOTE_PHY_CAPABLE)) {
u32 link;
bp->phy_flags |= BNX2_PHY_FLAG_REMOTE_PHY_CAP;
link = bnx2_shmem_rd(bp, BNX2_LINK_STATUS);
if (link & BNX2_LINK_STATUS_SERDES_LINK)
bp->phy_port = PORT_FIBRE;
else
bp->phy_port = PORT_TP;
sig |= BNX2_DRV_ACK_CAP_SIGNATURE |
BNX2_FW_CAP_REMOTE_PHY_CAPABLE;
}
if (netif_running(bp->dev) && sig)
bnx2_shmem_wr(bp, BNX2_DRV_ACK_CAP_MB, sig);
}
static void
bnx2_setup_msix_tbl(struct bnx2 *bp)
{
BNX2_WR(bp, BNX2_PCI_GRC_WINDOW_ADDR, BNX2_PCI_GRC_WINDOW_ADDR_SEP_WIN);
BNX2_WR(bp, BNX2_PCI_GRC_WINDOW2_ADDR, BNX2_MSIX_TABLE_ADDR);
BNX2_WR(bp, BNX2_PCI_GRC_WINDOW3_ADDR, BNX2_MSIX_PBA_ADDR);
}
static int
bnx2_reset_chip(struct bnx2 *bp, u32 reset_code)
{
u32 val;
int i, rc = 0;
u8 old_port;
/* Wait for the current PCI transaction to complete before
* issuing a reset. */
if ((CHIP_NUM(bp) == CHIP_NUM_5706) ||
(CHIP_NUM(bp) == CHIP_NUM_5708)) {
BNX2_WR(bp, BNX2_MISC_ENABLE_CLR_BITS,
BNX2_MISC_ENABLE_CLR_BITS_TX_DMA_ENABLE |
BNX2_MISC_ENABLE_CLR_BITS_DMA_ENGINE_ENABLE |
BNX2_MISC_ENABLE_CLR_BITS_RX_DMA_ENABLE |
BNX2_MISC_ENABLE_CLR_BITS_HOST_COALESCE_ENABLE);
val = BNX2_RD(bp, BNX2_MISC_ENABLE_CLR_BITS);
udelay(5);
} else { /* 5709 */
val = BNX2_RD(bp, BNX2_MISC_NEW_CORE_CTL);
val &= ~BNX2_MISC_NEW_CORE_CTL_DMA_ENABLE;
BNX2_WR(bp, BNX2_MISC_NEW_CORE_CTL, val);
val = BNX2_RD(bp, BNX2_MISC_NEW_CORE_CTL);
for (i = 0; i < 100; i++) {
msleep(1);
val = BNX2_RD(bp, BNX2_PCICFG_DEVICE_CONTROL);
if (!(val & BNX2_PCICFG_DEVICE_STATUS_NO_PEND))
break;
}
}
/* Wait for the firmware to tell us it is ok to issue a reset. */
bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT0 | reset_code, 1, 1);
/* Deposit a driver reset signature so the firmware knows that
* this is a soft reset. */
bnx2_shmem_wr(bp, BNX2_DRV_RESET_SIGNATURE,
BNX2_DRV_RESET_SIGNATURE_MAGIC);
/* Do a dummy read to force the chip to complete all current transaction
* before we issue a reset. */
val = BNX2_RD(bp, BNX2_MISC_ID);
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
BNX2_WR(bp, BNX2_MISC_COMMAND, BNX2_MISC_COMMAND_SW_RESET);
BNX2_RD(bp, BNX2_MISC_COMMAND);
udelay(5);
val = BNX2_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |
BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP;
BNX2_WR(bp, BNX2_PCICFG_MISC_CONFIG, val);
} else {
val = BNX2_PCICFG_MISC_CONFIG_CORE_RST_REQ |
BNX2_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |
BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP;
/* Chip reset. */
BNX2_WR(bp, BNX2_PCICFG_MISC_CONFIG, val);
/* Reading back any register after chip reset will hang the
* bus on 5706 A0 and A1. The msleep below provides plenty
* of margin for write posting.
*/
if ((CHIP_ID(bp) == CHIP_ID_5706_A0) ||
(CHIP_ID(bp) == CHIP_ID_5706_A1))
msleep(20);
/* Reset takes approximate 30 usec */
for (i = 0; i < 10; i++) {
val = BNX2_RD(bp, BNX2_PCICFG_MISC_CONFIG);
if ((val & (BNX2_PCICFG_MISC_CONFIG_CORE_RST_REQ |
BNX2_PCICFG_MISC_CONFIG_CORE_RST_BSY)) == 0)
break;
udelay(10);
}
if (val & (BNX2_PCICFG_MISC_CONFIG_CORE_RST_REQ |
BNX2_PCICFG_MISC_CONFIG_CORE_RST_BSY)) {
pr_err("Chip reset did not complete\n");
return -EBUSY;
}
}
/* Make sure byte swapping is properly configured. */
val = BNX2_RD(bp, BNX2_PCI_SWAP_DIAG0);
if (val != 0x01020304) {
pr_err("Chip not in correct endian mode\n");
return -ENODEV;
}
/* Wait for the firmware to finish its initialization. */
rc = bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT1 | reset_code, 1, 0);
if (rc)
return rc;
spin_lock_bh(&bp->phy_lock);
old_port = bp->phy_port;
bnx2_init_fw_cap(bp);
if ((bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) &&
old_port != bp->phy_port)
bnx2_set_default_remote_link(bp);
spin_unlock_bh(&bp->phy_lock);
if (CHIP_ID(bp) == CHIP_ID_5706_A0) {
/* Adjust the voltage regular to two steps lower. The default
* of this register is 0x0000000e. */
BNX2_WR(bp, BNX2_MISC_VREG_CONTROL, 0x000000fa);
/* Remove bad rbuf memory from the free pool. */
rc = bnx2_alloc_bad_rbuf(bp);
}
if (bp->flags & BNX2_FLAG_USING_MSIX) {
bnx2_setup_msix_tbl(bp);
/* Prevent MSIX table reads and write from timing out */
BNX2_WR(bp, BNX2_MISC_ECO_HW_CTL,
BNX2_MISC_ECO_HW_CTL_LARGE_GRC_TMOUT_EN);
}
return rc;
}
static int
bnx2_init_chip(struct bnx2 *bp)
{
u32 val, mtu;
int rc, i;
/* Make sure the interrupt is not active. */
BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
val = BNX2_DMA_CONFIG_DATA_BYTE_SWAP |
BNX2_DMA_CONFIG_DATA_WORD_SWAP |
#ifdef __BIG_ENDIAN
BNX2_DMA_CONFIG_CNTL_BYTE_SWAP |
#endif
BNX2_DMA_CONFIG_CNTL_WORD_SWAP |
DMA_READ_CHANS << 12 |
DMA_WRITE_CHANS << 16;
val |= (0x2 << 20) | (1 << 11);
if ((bp->flags & BNX2_FLAG_PCIX) && (bp->bus_speed_mhz == 133))
val |= (1 << 23);
if ((CHIP_NUM(bp) == CHIP_NUM_5706) &&
(CHIP_ID(bp) != CHIP_ID_5706_A0) && !(bp->flags & BNX2_FLAG_PCIX))
val |= BNX2_DMA_CONFIG_CNTL_PING_PONG_DMA;
BNX2_WR(bp, BNX2_DMA_CONFIG, val);
if (CHIP_ID(bp) == CHIP_ID_5706_A0) {
val = BNX2_RD(bp, BNX2_TDMA_CONFIG);
val |= BNX2_TDMA_CONFIG_ONE_DMA;
BNX2_WR(bp, BNX2_TDMA_CONFIG, val);
}
if (bp->flags & BNX2_FLAG_PCIX) {
u16 val16;
pci_read_config_word(bp->pdev, bp->pcix_cap + PCI_X_CMD,
&val16);
pci_write_config_word(bp->pdev, bp->pcix_cap + PCI_X_CMD,
val16 & ~PCI_X_CMD_ERO);
}
BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS,
BNX2_MISC_ENABLE_SET_BITS_HOST_COALESCE_ENABLE |
BNX2_MISC_ENABLE_STATUS_BITS_RX_V2P_ENABLE |
BNX2_MISC_ENABLE_STATUS_BITS_CONTEXT_ENABLE);
/* Initialize context mapping and zero out the quick contexts. The
* context block must have already been enabled. */
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
rc = bnx2_init_5709_context(bp);
if (rc)
return rc;
} else
bnx2_init_context(bp);
if ((rc = bnx2_init_cpus(bp)) != 0)
return rc;
bnx2_init_nvram(bp);
bnx2_set_mac_addr(bp, bp->dev->dev_addr, 0);
val = BNX2_RD(bp, BNX2_MQ_CONFIG);
val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;
val |= BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE_256;
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
val |= BNX2_MQ_CONFIG_BIN_MQ_MODE;
if (CHIP_REV(bp) == CHIP_REV_Ax)
val |= BNX2_MQ_CONFIG_HALT_DIS;
}
BNX2_WR(bp, BNX2_MQ_CONFIG, val);
val = 0x10000 + (MAX_CID_CNT * MB_KERNEL_CTX_SIZE);
BNX2_WR(bp, BNX2_MQ_KNL_BYP_WIND_START, val);
BNX2_WR(bp, BNX2_MQ_KNL_WIND_END, val);
val = (BCM_PAGE_BITS - 8) << 24;
BNX2_WR(bp, BNX2_RV2P_CONFIG, val);
/* Configure page size. */
val = BNX2_RD(bp, BNX2_TBDR_CONFIG);
val &= ~BNX2_TBDR_CONFIG_PAGE_SIZE;
val |= (BCM_PAGE_BITS - 8) << 24 | 0x40;
BNX2_WR(bp, BNX2_TBDR_CONFIG, val);
val = bp->mac_addr[0] +
(bp->mac_addr[1] << 8) +
(bp->mac_addr[2] << 16) +
bp->mac_addr[3] +
(bp->mac_addr[4] << 8) +
(bp->mac_addr[5] << 16);
BNX2_WR(bp, BNX2_EMAC_BACKOFF_SEED, val);
/* Program the MTU. Also include 4 bytes for CRC32. */
mtu = bp->dev->mtu;
val = mtu + ETH_HLEN + ETH_FCS_LEN;
if (val > (MAX_ETHERNET_PACKET_SIZE + 4))
val |= BNX2_EMAC_RX_MTU_SIZE_JUMBO_ENA;
BNX2_WR(bp, BNX2_EMAC_RX_MTU_SIZE, val);
if (mtu < 1500)
mtu = 1500;
bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG, BNX2_RBUF_CONFIG_VAL(mtu));
bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG2, BNX2_RBUF_CONFIG2_VAL(mtu));
bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG3, BNX2_RBUF_CONFIG3_VAL(mtu));
memset(bp->bnx2_napi[0].status_blk.msi, 0, bp->status_stats_size);
for (i = 0; i < BNX2_MAX_MSIX_VEC; i++)
bp->bnx2_napi[i].last_status_idx = 0;
bp->idle_chk_status_idx = 0xffff;
bp->rx_mode = BNX2_EMAC_RX_MODE_SORT_MODE;
/* Set up how to generate a link change interrupt. */
BNX2_WR(bp, BNX2_EMAC_ATTENTION_ENA, BNX2_EMAC_ATTENTION_ENA_LINK);
BNX2_WR(bp, BNX2_HC_STATUS_ADDR_L,
(u64) bp->status_blk_mapping & 0xffffffff);
BNX2_WR(bp, BNX2_HC_STATUS_ADDR_H, (u64) bp->status_blk_mapping >> 32);
BNX2_WR(bp, BNX2_HC_STATISTICS_ADDR_L,
(u64) bp->stats_blk_mapping & 0xffffffff);
BNX2_WR(bp, BNX2_HC_STATISTICS_ADDR_H,
(u64) bp->stats_blk_mapping >> 32);
BNX2_WR(bp, BNX2_HC_TX_QUICK_CONS_TRIP,
(bp->tx_quick_cons_trip_int << 16) | bp->tx_quick_cons_trip);
BNX2_WR(bp, BNX2_HC_RX_QUICK_CONS_TRIP,
(bp->rx_quick_cons_trip_int << 16) | bp->rx_quick_cons_trip);
BNX2_WR(bp, BNX2_HC_COMP_PROD_TRIP,
(bp->comp_prod_trip_int << 16) | bp->comp_prod_trip);
BNX2_WR(bp, BNX2_HC_TX_TICKS, (bp->tx_ticks_int << 16) | bp->tx_ticks);
BNX2_WR(bp, BNX2_HC_RX_TICKS, (bp->rx_ticks_int << 16) | bp->rx_ticks);
BNX2_WR(bp, BNX2_HC_COM_TICKS,
(bp->com_ticks_int << 16) | bp->com_ticks);
BNX2_WR(bp, BNX2_HC_CMD_TICKS,
(bp->cmd_ticks_int << 16) | bp->cmd_ticks);
if (bp->flags & BNX2_FLAG_BROKEN_STATS)
BNX2_WR(bp, BNX2_HC_STATS_TICKS, 0);
else
BNX2_WR(bp, BNX2_HC_STATS_TICKS, bp->stats_ticks);
BNX2_WR(bp, BNX2_HC_STAT_COLLECT_TICKS, 0xbb8); /* 3ms */
if (CHIP_ID(bp) == CHIP_ID_5706_A1)
val = BNX2_HC_CONFIG_COLLECT_STATS;
else {
val = BNX2_HC_CONFIG_RX_TMR_MODE | BNX2_HC_CONFIG_TX_TMR_MODE |
BNX2_HC_CONFIG_COLLECT_STATS;
}
if (bp->flags & BNX2_FLAG_USING_MSIX) {
BNX2_WR(bp, BNX2_HC_MSIX_BIT_VECTOR,
BNX2_HC_MSIX_BIT_VECTOR_VAL);
val |= BNX2_HC_CONFIG_SB_ADDR_INC_128B;
}
if (bp->flags & BNX2_FLAG_ONE_SHOT_MSI)
val |= BNX2_HC_CONFIG_ONE_SHOT | BNX2_HC_CONFIG_USE_INT_PARAM;
BNX2_WR(bp, BNX2_HC_CONFIG, val);
if (bp->rx_ticks < 25)
bnx2_reg_wr_ind(bp, BNX2_FW_RX_LOW_LATENCY, 1);
else
bnx2_reg_wr_ind(bp, BNX2_FW_RX_LOW_LATENCY, 0);
for (i = 1; i < bp->irq_nvecs; i++) {
u32 base = ((i - 1) * BNX2_HC_SB_CONFIG_SIZE) +
BNX2_HC_SB_CONFIG_1;
BNX2_WR(bp, base,
BNX2_HC_SB_CONFIG_1_TX_TMR_MODE |
BNX2_HC_SB_CONFIG_1_RX_TMR_MODE |
BNX2_HC_SB_CONFIG_1_ONE_SHOT);
BNX2_WR(bp, base + BNX2_HC_TX_QUICK_CONS_TRIP_OFF,
(bp->tx_quick_cons_trip_int << 16) |
bp->tx_quick_cons_trip);
BNX2_WR(bp, base + BNX2_HC_TX_TICKS_OFF,
(bp->tx_ticks_int << 16) | bp->tx_ticks);
BNX2_WR(bp, base + BNX2_HC_RX_QUICK_CONS_TRIP_OFF,
(bp->rx_quick_cons_trip_int << 16) |
bp->rx_quick_cons_trip);
BNX2_WR(bp, base + BNX2_HC_RX_TICKS_OFF,
(bp->rx_ticks_int << 16) | bp->rx_ticks);
}
/* Clear internal stats counters. */
BNX2_WR(bp, BNX2_HC_COMMAND, BNX2_HC_COMMAND_CLR_STAT_NOW);
BNX2_WR(bp, BNX2_HC_ATTN_BITS_ENABLE, STATUS_ATTN_EVENTS);
/* Initialize the receive filter. */
bnx2_set_rx_mode(bp->dev);
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
val = BNX2_RD(bp, BNX2_MISC_NEW_CORE_CTL);
val |= BNX2_MISC_NEW_CORE_CTL_DMA_ENABLE;
BNX2_WR(bp, BNX2_MISC_NEW_CORE_CTL, val);
}
rc = bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT2 | BNX2_DRV_MSG_CODE_RESET,
1, 0);
BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS, BNX2_MISC_ENABLE_DEFAULT);
BNX2_RD(bp, BNX2_MISC_ENABLE_SET_BITS);
udelay(20);
bp->hc_cmd = BNX2_RD(bp, BNX2_HC_COMMAND);
return rc;
}
static void
bnx2_clear_ring_states(struct bnx2 *bp)
{
struct bnx2_napi *bnapi;
struct bnx2_tx_ring_info *txr;
struct bnx2_rx_ring_info *rxr;
int i;
for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {
bnapi = &bp->bnx2_napi[i];
txr = &bnapi->tx_ring;
rxr = &bnapi->rx_ring;
txr->tx_cons = 0;
txr->hw_tx_cons = 0;
rxr->rx_prod_bseq = 0;
rxr->rx_prod = 0;
rxr->rx_cons = 0;
rxr->rx_pg_prod = 0;
rxr->rx_pg_cons = 0;
}
}
static void
bnx2_init_tx_context(struct bnx2 *bp, u32 cid, struct bnx2_tx_ring_info *txr)
{
u32 val, offset0, offset1, offset2, offset3;
u32 cid_addr = GET_CID_ADDR(cid);
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
offset0 = BNX2_L2CTX_TYPE_XI;
offset1 = BNX2_L2CTX_CMD_TYPE_XI;
offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;
offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;
} else {
offset0 = BNX2_L2CTX_TYPE;
offset1 = BNX2_L2CTX_CMD_TYPE;
offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;
offset3 = BNX2_L2CTX_TBDR_BHADDR_LO;
}
val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2;
bnx2_ctx_wr(bp, cid_addr, offset0, val);
val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);
bnx2_ctx_wr(bp, cid_addr, offset1, val);
val = (u64) txr->tx_desc_mapping >> 32;
bnx2_ctx_wr(bp, cid_addr, offset2, val);
val = (u64) txr->tx_desc_mapping & 0xffffffff;
bnx2_ctx_wr(bp, cid_addr, offset3, val);
}
static void
bnx2_init_tx_ring(struct bnx2 *bp, int ring_num)
{
struct tx_bd *txbd;
u32 cid = TX_CID;
struct bnx2_napi *bnapi;
struct bnx2_tx_ring_info *txr;
bnapi = &bp->bnx2_napi[ring_num];
txr = &bnapi->tx_ring;
if (ring_num == 0)
cid = TX_CID;
else
cid = TX_TSS_CID + ring_num - 1;
bp->tx_wake_thresh = bp->tx_ring_size / 2;
txbd = &txr->tx_desc_ring[MAX_TX_DESC_CNT];
txbd->tx_bd_haddr_hi = (u64) txr->tx_desc_mapping >> 32;
txbd->tx_bd_haddr_lo = (u64) txr->tx_desc_mapping & 0xffffffff;
txr->tx_prod = 0;
txr->tx_prod_bseq = 0;
txr->tx_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_TX_HOST_BIDX;
txr->tx_bseq_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_TX_HOST_BSEQ;
bnx2_init_tx_context(bp, cid, txr);
}
static void
bnx2_init_rxbd_rings(struct rx_bd *rx_ring[], dma_addr_t dma[], u32 buf_size,
int num_rings)
{
int i;
struct rx_bd *rxbd;
for (i = 0; i < num_rings; i++) {
int j;
rxbd = &rx_ring[i][0];
for (j = 0; j < MAX_RX_DESC_CNT; j++, rxbd++) {
rxbd->rx_bd_len = buf_size;
rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
}
if (i == (num_rings - 1))
j = 0;
else
j = i + 1;
rxbd->rx_bd_haddr_hi = (u64) dma[j] >> 32;
rxbd->rx_bd_haddr_lo = (u64) dma[j] & 0xffffffff;
}
}
static void
bnx2_init_rx_ring(struct bnx2 *bp, int ring_num)
{
int i;
u16 prod, ring_prod;
u32 cid, rx_cid_addr, val;
struct bnx2_napi *bnapi = &bp->bnx2_napi[ring_num];
struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
if (ring_num == 0)
cid = RX_CID;
else
cid = RX_RSS_CID + ring_num - 1;
rx_cid_addr = GET_CID_ADDR(cid);
bnx2_init_rxbd_rings(rxr->rx_desc_ring, rxr->rx_desc_mapping,
bp->rx_buf_use_size, bp->rx_max_ring);
bnx2_init_rx_context(bp, cid);
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
val = BNX2_RD(bp, BNX2_MQ_MAP_L2_5);
BNX2_WR(bp, BNX2_MQ_MAP_L2_5, val | BNX2_MQ_MAP_L2_5_ARM);
}
bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_PG_BUF_SIZE, 0);
if (bp->rx_pg_ring_size) {
bnx2_init_rxbd_rings(rxr->rx_pg_desc_ring,
rxr->rx_pg_desc_mapping,
PAGE_SIZE, bp->rx_max_pg_ring);
val = (bp->rx_buf_use_size << 16) | PAGE_SIZE;
bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_PG_BUF_SIZE, val);
bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_RBDC_KEY,
BNX2_L2CTX_RBDC_JUMBO_KEY - ring_num);
val = (u64) rxr->rx_pg_desc_mapping[0] >> 32;
bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_PG_BDHADDR_HI, val);
val = (u64) rxr->rx_pg_desc_mapping[0] & 0xffffffff;
bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_PG_BDHADDR_LO, val);
if (CHIP_NUM(bp) == CHIP_NUM_5709)
BNX2_WR(bp, BNX2_MQ_MAP_L2_3, BNX2_MQ_MAP_L2_3_DEFAULT);
}
val = (u64) rxr->rx_desc_mapping[0] >> 32;
bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val);
val = (u64) rxr->rx_desc_mapping[0] & 0xffffffff;
bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val);
ring_prod = prod = rxr->rx_pg_prod;
for (i = 0; i < bp->rx_pg_ring_size; i++) {
if (bnx2_alloc_rx_page(bp, rxr, ring_prod, GFP_KERNEL) < 0) {
netdev_warn(bp->dev, "init'ed rx page ring %d with %d/%d pages only\n",
ring_num, i, bp->rx_pg_ring_size);
break;
}
prod = NEXT_RX_BD(prod);
ring_prod = RX_PG_RING_IDX(prod);
}
rxr->rx_pg_prod = prod;
ring_prod = prod = rxr->rx_prod;
for (i = 0; i < bp->rx_ring_size; i++) {
if (bnx2_alloc_rx_data(bp, rxr, ring_prod, GFP_KERNEL) < 0) {
netdev_warn(bp->dev, "init'ed rx ring %d with %d/%d skbs only\n",
ring_num, i, bp->rx_ring_size);
break;
}
prod = NEXT_RX_BD(prod);
ring_prod = RX_RING_IDX(prod);
}
rxr->rx_prod = prod;
rxr->rx_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_HOST_BDIDX;
rxr->rx_bseq_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_HOST_BSEQ;
rxr->rx_pg_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_HOST_PG_BDIDX;
BNX2_WR16(bp, rxr->rx_pg_bidx_addr, rxr->rx_pg_prod);
BNX2_WR16(bp, rxr->rx_bidx_addr, prod);
BNX2_WR(bp, rxr->rx_bseq_addr, rxr->rx_prod_bseq);
}
static void
bnx2_init_all_rings(struct bnx2 *bp)
{
int i;
u32 val;
bnx2_clear_ring_states(bp);
BNX2_WR(bp, BNX2_TSCH_TSS_CFG, 0);
for (i = 0; i < bp->num_tx_rings; i++)
bnx2_init_tx_ring(bp, i);
if (bp->num_tx_rings > 1)
BNX2_WR(bp, BNX2_TSCH_TSS_CFG, ((bp->num_tx_rings - 1) << 24) |
(TX_TSS_CID << 7));
BNX2_WR(bp, BNX2_RLUP_RSS_CONFIG, 0);
bnx2_reg_wr_ind(bp, BNX2_RXP_SCRATCH_RSS_TBL_SZ, 0);
for (i = 0; i < bp->num_rx_rings; i++)
bnx2_init_rx_ring(bp, i);
if (bp->num_rx_rings > 1) {
u32 tbl_32 = 0;
for (i = 0; i < BNX2_RXP_SCRATCH_RSS_TBL_MAX_ENTRIES; i++) {
int shift = (i % 8) << 2;
tbl_32 |= (i % (bp->num_rx_rings - 1)) << shift;
if ((i % 8) == 7) {
BNX2_WR(bp, BNX2_RLUP_RSS_DATA, tbl_32);
BNX2_WR(bp, BNX2_RLUP_RSS_COMMAND, (i >> 3) |
BNX2_RLUP_RSS_COMMAND_RSS_WRITE_MASK |
BNX2_RLUP_RSS_COMMAND_WRITE |
BNX2_RLUP_RSS_COMMAND_HASH_MASK);
tbl_32 = 0;
}
}
val = BNX2_RLUP_RSS_CONFIG_IPV4_RSS_TYPE_ALL_XI |
BNX2_RLUP_RSS_CONFIG_IPV6_RSS_TYPE_ALL_XI;
BNX2_WR(bp, BNX2_RLUP_RSS_CONFIG, val);
}
}
static u32 bnx2_find_max_ring(u32 ring_size, u32 max_size)
{
u32 max, num_rings = 1;
while (ring_size > MAX_RX_DESC_CNT) {
ring_size -= MAX_RX_DESC_CNT;
num_rings++;
}
/* round to next power of 2 */
max = max_size;
while ((max & num_rings) == 0)
max >>= 1;
if (num_rings != max)
max <<= 1;
return max;
}
static void
bnx2_set_rx_ring_size(struct bnx2 *bp, u32 size)
{
u32 rx_size, rx_space, jumbo_size;
/* 8 for CRC and VLAN */
rx_size = bp->dev->mtu + ETH_HLEN + BNX2_RX_OFFSET + 8;
rx_space = SKB_DATA_ALIGN(rx_size + BNX2_RX_ALIGN) + NET_SKB_PAD +
SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
bp->rx_copy_thresh = BNX2_RX_COPY_THRESH;
bp->rx_pg_ring_size = 0;
bp->rx_max_pg_ring = 0;
bp->rx_max_pg_ring_idx = 0;
if ((rx_space > PAGE_SIZE) && !(bp->flags & BNX2_FLAG_JUMBO_BROKEN)) {
int pages = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT;
jumbo_size = size * pages;
if (jumbo_size > MAX_TOTAL_RX_PG_DESC_CNT)
jumbo_size = MAX_TOTAL_RX_PG_DESC_CNT;
bp->rx_pg_ring_size = jumbo_size;
bp->rx_max_pg_ring = bnx2_find_max_ring(jumbo_size,
MAX_RX_PG_RINGS);
bp->rx_max_pg_ring_idx = (bp->rx_max_pg_ring * RX_DESC_CNT) - 1;
rx_size = BNX2_RX_COPY_THRESH + BNX2_RX_OFFSET;
bp->rx_copy_thresh = 0;
}
bp->rx_buf_use_size = rx_size;
/* hw alignment + build_skb() overhead*/
bp->rx_buf_size = SKB_DATA_ALIGN(bp->rx_buf_use_size + BNX2_RX_ALIGN) +
NET_SKB_PAD + SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
bp->rx_jumbo_thresh = rx_size - BNX2_RX_OFFSET;
bp->rx_ring_size = size;
bp->rx_max_ring = bnx2_find_max_ring(size, MAX_RX_RINGS);
bp->rx_max_ring_idx = (bp->rx_max_ring * RX_DESC_CNT) - 1;
}
static void
bnx2_free_tx_skbs(struct bnx2 *bp)
{
int i;
for (i = 0; i < bp->num_tx_rings; i++) {
struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
int j;
if (txr->tx_buf_ring == NULL)
continue;
for (j = 0; j < TX_DESC_CNT; ) {
struct sw_tx_bd *tx_buf = &txr->tx_buf_ring[j];
struct sk_buff *skb = tx_buf->skb;
int k, last;
if (skb == NULL) {
j = NEXT_TX_BD(j);
continue;
}
dma_unmap_single(&bp->pdev->dev,
dma_unmap_addr(tx_buf, mapping),
skb_headlen(skb),
PCI_DMA_TODEVICE);
tx_buf->skb = NULL;
last = tx_buf->nr_frags;
j = NEXT_TX_BD(j);
for (k = 0; k < last; k++, j = NEXT_TX_BD(j)) {
tx_buf = &txr->tx_buf_ring[TX_RING_IDX(j)];
dma_unmap_page(&bp->pdev->dev,
dma_unmap_addr(tx_buf, mapping),
skb_frag_size(&skb_shinfo(skb)->frags[k]),
PCI_DMA_TODEVICE);
}
dev_kfree_skb(skb);
}
netdev_tx_reset_queue(netdev_get_tx_queue(bp->dev, i));
}
}
static void
bnx2_free_rx_skbs(struct bnx2 *bp)
{
int i;
for (i = 0; i < bp->num_rx_rings; i++) {
struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
int j;
if (rxr->rx_buf_ring == NULL)
return;
for (j = 0; j < bp->rx_max_ring_idx; j++) {
struct sw_bd *rx_buf = &rxr->rx_buf_ring[j];
u8 *data = rx_buf->data;
if (data == NULL)
continue;
dma_unmap_single(&bp->pdev->dev,
dma_unmap_addr(rx_buf, mapping),
bp->rx_buf_use_size,
PCI_DMA_FROMDEVICE);
rx_buf->data = NULL;
kfree(data);
}
for (j = 0; j < bp->rx_max_pg_ring_idx; j++)
bnx2_free_rx_page(bp, rxr, j);
}
}
static void
bnx2_free_skbs(struct bnx2 *bp)
{
bnx2_free_tx_skbs(bp);
bnx2_free_rx_skbs(bp);
}
static int
bnx2_reset_nic(struct bnx2 *bp, u32 reset_code)
{
int rc;
rc = bnx2_reset_chip(bp, reset_code);
bnx2_free_skbs(bp);
if (rc)
return rc;
if ((rc = bnx2_init_chip(bp)) != 0)
return rc;
bnx2_init_all_rings(bp);
return 0;
}
static int
bnx2_init_nic(struct bnx2 *bp, int reset_phy)
{
int rc;
if ((rc = bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET)) != 0)
return rc;
spin_lock_bh(&bp->phy_lock);
bnx2_init_phy(bp, reset_phy);
bnx2_set_link(bp);
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
bnx2_remote_phy_event(bp);
spin_unlock_bh(&bp->phy_lock);
return 0;
}
static int
bnx2_shutdown_chip(struct bnx2 *bp)
{
u32 reset_code;
if (bp->flags & BNX2_FLAG_NO_WOL)
reset_code = BNX2_DRV_MSG_CODE_UNLOAD_LNK_DN;
else if (bp->wol)
reset_code = BNX2_DRV_MSG_CODE_SUSPEND_WOL;
else
reset_code = BNX2_DRV_MSG_CODE_SUSPEND_NO_WOL;
return bnx2_reset_chip(bp, reset_code);
}
static int
bnx2_test_registers(struct bnx2 *bp)
{
int ret;
int i, is_5709;
static const struct {
u16 offset;
u16 flags;
#define BNX2_FL_NOT_5709 1
u32 rw_mask;
u32 ro_mask;
} reg_tbl[] = {
{ 0x006c, 0, 0x00000000, 0x0000003f },
{ 0x0090, 0, 0xffffffff, 0x00000000 },
{ 0x0094, 0, 0x00000000, 0x00000000 },
{ 0x0404, BNX2_FL_NOT_5709, 0x00003f00, 0x00000000 },
{ 0x0418, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
{ 0x041c, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
{ 0x0420, BNX2_FL_NOT_5709, 0x00000000, 0x80ffffff },
{ 0x0424, BNX2_FL_NOT_5709, 0x00000000, 0x00000000 },
{ 0x0428, BNX2_FL_NOT_5709, 0x00000000, 0x00000001 },
{ 0x0450, BNX2_FL_NOT_5709, 0x00000000, 0x0000ffff },
{ 0x0454, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
{ 0x0458, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
{ 0x0808, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
{ 0x0854, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },
{ 0x0868, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },
{ 0x086c, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },
{ 0x0870, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },
{ 0x0874, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },
{ 0x0c00, BNX2_FL_NOT_5709, 0x00000000, 0x00000001 },
{ 0x0c04, BNX2_FL_NOT_5709, 0x00000000, 0x03ff0001 },
{ 0x0c08, BNX2_FL_NOT_5709, 0x0f0ff073, 0x00000000 },
{ 0x1000, 0, 0x00000000, 0x00000001 },
{ 0x1004, BNX2_FL_NOT_5709, 0x00000000, 0x000f0001 },
{ 0x1408, 0, 0x01c00800, 0x00000000 },
{ 0x149c, 0, 0x8000ffff, 0x00000000 },
{ 0x14a8, 0, 0x00000000, 0x000001ff },
{ 0x14ac, 0, 0x0fffffff, 0x10000000 },
{ 0x14b0, 0, 0x00000002, 0x00000001 },
{ 0x14b8, 0, 0x00000000, 0x00000000 },
{ 0x14c0, 0, 0x00000000, 0x00000009 },
{ 0x14c4, 0, 0x00003fff, 0x00000000 },
{ 0x14cc, 0, 0x00000000, 0x00000001 },
{ 0x14d0, 0, 0xffffffff, 0x00000000 },
{ 0x1800, 0, 0x00000000, 0x00000001 },
{ 0x1804, 0, 0x00000000, 0x00000003 },
{ 0x2800, 0, 0x00000000, 0x00000001 },
{ 0x2804, 0, 0x00000000, 0x00003f01 },
{ 0x2808, 0, 0x0f3f3f03, 0x00000000 },
{ 0x2810, 0, 0xffff0000, 0x00000000 },
{ 0x2814, 0, 0xffff0000, 0x00000000 },
{ 0x2818, 0, 0xffff0000, 0x00000000 },
{ 0x281c, 0, 0xffff0000, 0x00000000 },
{ 0x2834, 0, 0xffffffff, 0x00000000 },
{ 0x2840, 0, 0x00000000, 0xffffffff },
{ 0x2844, 0, 0x00000000, 0xffffffff },
{ 0x2848, 0, 0xffffffff, 0x00000000 },
{ 0x284c, 0, 0xf800f800, 0x07ff07ff },
{ 0x2c00, 0, 0x00000000, 0x00000011 },
{ 0x2c04, 0, 0x00000000, 0x00030007 },
{ 0x3c00, 0, 0x00000000, 0x00000001 },
{ 0x3c04, 0, 0x00000000, 0x00070000 },
{ 0x3c08, 0, 0x00007f71, 0x07f00000 },
{ 0x3c0c, 0, 0x1f3ffffc, 0x00000000 },
{ 0x3c10, 0, 0xffffffff, 0x00000000 },
{ 0x3c14, 0, 0x00000000, 0xffffffff },
{ 0x3c18, 0, 0x00000000, 0xffffffff },
{ 0x3c1c, 0, 0xfffff000, 0x00000000 },
{ 0x3c20, 0, 0xffffff00, 0x00000000 },
{ 0x5004, 0, 0x00000000, 0x0000007f },
{ 0x5008, 0, 0x0f0007ff, 0x00000000 },
{ 0x5c00, 0, 0x00000000, 0x00000001 },
{ 0x5c04, 0, 0x00000000, 0x0003000f },
{ 0x5c08, 0, 0x00000003, 0x00000000 },
{ 0x5c0c, 0, 0x0000fff8, 0x00000000 },
{ 0x5c10, 0, 0x00000000, 0xffffffff },
{ 0x5c80, 0, 0x00000000, 0x0f7113f1 },
{ 0x5c84, 0, 0x00000000, 0x0000f333 },
{ 0x5c88, 0, 0x00000000, 0x00077373 },
{ 0x5c8c, 0, 0x00000000, 0x0007f737 },
{ 0x6808, 0, 0x0000ff7f, 0x00000000 },
{ 0x680c, 0, 0xffffffff, 0x00000000 },
{ 0x6810, 0, 0xffffffff, 0x00000000 },
{ 0x6814, 0, 0xffffffff, 0x00000000 },
{ 0x6818, 0, 0xffffffff, 0x00000000 },
{ 0x681c, 0, 0xffffffff, 0x00000000 },
{ 0x6820, 0, 0x00ff00ff, 0x00000000 },
{ 0x6824, 0, 0x00ff00ff, 0x00000000 },
{ 0x6828, 0, 0x00ff00ff, 0x00000000 },
{ 0x682c, 0, 0x03ff03ff, 0x00000000 },
{ 0x6830, 0, 0x03ff03ff, 0x00000000 },
{ 0x6834, 0, 0x03ff03ff, 0x00000000 },
{ 0x6838, 0, 0x03ff03ff, 0x00000000 },
{ 0x683c, 0, 0x0000ffff, 0x00000000 },
{ 0x6840, 0, 0x00000ff0, 0x00000000 },
{ 0x6844, 0, 0x00ffff00, 0x00000000 },
{ 0x684c, 0, 0xffffffff, 0x00000000 },
{ 0x6850, 0, 0x7f7f7f7f, 0x00000000 },
{ 0x6854, 0, 0x7f7f7f7f, 0x00000000 },
{ 0x6858, 0, 0x7f7f7f7f, 0x00000000 },
{ 0x685c, 0, 0x7f7f7f7f, 0x00000000 },
{ 0x6908, 0, 0x00000000, 0x0001ff0f },
{ 0x690c, 0, 0x00000000, 0x0ffe00f0 },
{ 0xffff, 0, 0x00000000, 0x00000000 },
};
ret = 0;
is_5709 = 0;
if (CHIP_NUM(bp) == CHIP_NUM_5709)
is_5709 = 1;
for (i = 0; reg_tbl[i].offset != 0xffff; i++) {
u32 offset, rw_mask, ro_mask, save_val, val;
u16 flags = reg_tbl[i].flags;
if (is_5709 && (flags & BNX2_FL_NOT_5709))
continue;
offset = (u32) reg_tbl[i].offset;
rw_mask = reg_tbl[i].rw_mask;
ro_mask = reg_tbl[i].ro_mask;
save_val = readl(bp->regview + offset);
writel(0, bp->regview + offset);
val = readl(bp->regview + offset);
if ((val & rw_mask) != 0) {
goto reg_test_err;
}
if ((val & ro_mask) != (save_val & ro_mask)) {
goto reg_test_err;
}
writel(0xffffffff, bp->regview + offset);
val = readl(bp->regview + offset);
if ((val & rw_mask) != rw_mask) {
goto reg_test_err;
}
if ((val & ro_mask) != (save_val & ro_mask)) {
goto reg_test_err;
}
writel(save_val, bp->regview + offset);
continue;
reg_test_err:
writel(save_val, bp->regview + offset);
ret = -ENODEV;
break;
}
return ret;
}
static int
bnx2_do_mem_test(struct bnx2 *bp, u32 start, u32 size)
{
static const u32 test_pattern[] = { 0x00000000, 0xffffffff, 0x55555555,
0xaaaaaaaa , 0xaa55aa55, 0x55aa55aa };
int i;
for (i = 0; i < sizeof(test_pattern) / 4; i++) {
u32 offset;
for (offset = 0; offset < size; offset += 4) {
bnx2_reg_wr_ind(bp, start + offset, test_pattern[i]);
if (bnx2_reg_rd_ind(bp, start + offset) !=
test_pattern[i]) {
return -ENODEV;
}
}
}
return 0;
}
static int
bnx2_test_memory(struct bnx2 *bp)
{
int ret = 0;
int i;
static struct mem_entry {
u32 offset;
u32 len;
} mem_tbl_5706[] = {
{ 0x60000, 0x4000 },
{ 0xa0000, 0x3000 },
{ 0xe0000, 0x4000 },
{ 0x120000, 0x4000 },
{ 0x1a0000, 0x4000 },
{ 0x160000, 0x4000 },
{ 0xffffffff, 0 },
},
mem_tbl_5709[] = {
{ 0x60000, 0x4000 },
{ 0xa0000, 0x3000 },
{ 0xe0000, 0x4000 },
{ 0x120000, 0x4000 },
{ 0x1a0000, 0x4000 },
{ 0xffffffff, 0 },
};
struct mem_entry *mem_tbl;
if (CHIP_NUM(bp) == CHIP_NUM_5709)
mem_tbl = mem_tbl_5709;
else
mem_tbl = mem_tbl_5706;
for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
if ((ret = bnx2_do_mem_test(bp, mem_tbl[i].offset,
mem_tbl[i].len)) != 0) {
return ret;
}
}
return ret;
}
#define BNX2_MAC_LOOPBACK 0
#define BNX2_PHY_LOOPBACK 1
static int
bnx2_run_loopback(struct bnx2 *bp, int loopback_mode)
{
unsigned int pkt_size, num_pkts, i;
struct sk_buff *skb;
u8 *data;
unsigned char *packet;
u16 rx_start_idx, rx_idx;
dma_addr_t map;
struct tx_bd *txbd;
struct sw_bd *rx_buf;
struct l2_fhdr *rx_hdr;
int ret = -ENODEV;
struct bnx2_napi *bnapi = &bp->bnx2_napi[0], *tx_napi;
struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
tx_napi = bnapi;
txr = &tx_napi->tx_ring;
rxr = &bnapi->rx_ring;
if (loopback_mode == BNX2_MAC_LOOPBACK) {
bp->loopback = MAC_LOOPBACK;
bnx2_set_mac_loopback(bp);
}
else if (loopback_mode == BNX2_PHY_LOOPBACK) {
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
return 0;
bp->loopback = PHY_LOOPBACK;
bnx2_set_phy_loopback(bp);
}
else
return -EINVAL;
pkt_size = min(bp->dev->mtu + ETH_HLEN, bp->rx_jumbo_thresh - 4);
skb = netdev_alloc_skb(bp->dev, pkt_size);
if (!skb)
return -ENOMEM;
packet = skb_put(skb, pkt_size);
memcpy(packet, bp->dev->dev_addr, 6);
memset(packet + 6, 0x0, 8);
for (i = 14; i < pkt_size; i++)
packet[i] = (unsigned char) (i & 0xff);
map = dma_map_single(&bp->pdev->dev, skb->data, pkt_size,
PCI_DMA_TODEVICE);
if (dma_mapping_error(&bp->pdev->dev, map)) {
dev_kfree_skb(skb);
return -EIO;
}
BNX2_WR(bp, BNX2_HC_COMMAND,
bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
BNX2_RD(bp, BNX2_HC_COMMAND);
udelay(5);
rx_start_idx = bnx2_get_hw_rx_cons(bnapi);
num_pkts = 0;
txbd = &txr->tx_desc_ring[TX_RING_IDX(txr->tx_prod)];
txbd->tx_bd_haddr_hi = (u64) map >> 32;
txbd->tx_bd_haddr_lo = (u64) map & 0xffffffff;
txbd->tx_bd_mss_nbytes = pkt_size;
txbd->tx_bd_vlan_tag_flags = TX_BD_FLAGS_START | TX_BD_FLAGS_END;
num_pkts++;
txr->tx_prod = NEXT_TX_BD(txr->tx_prod);
txr->tx_prod_bseq += pkt_size;
BNX2_WR16(bp, txr->tx_bidx_addr, txr->tx_prod);
BNX2_WR(bp, txr->tx_bseq_addr, txr->tx_prod_bseq);
udelay(100);
BNX2_WR(bp, BNX2_HC_COMMAND,
bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);
BNX2_RD(bp, BNX2_HC_COMMAND);
udelay(5);
dma_unmap_single(&bp->pdev->dev, map, pkt_size, PCI_DMA_TODEVICE);
dev_kfree_skb(skb);
if (bnx2_get_hw_tx_cons(tx_napi) != txr->tx_prod)
goto loopback_test_done;
rx_idx = bnx2_get_hw_rx_cons(bnapi);
if (rx_idx != rx_start_idx + num_pkts) {
goto loopback_test_done;
}
rx_buf = &rxr->rx_buf_ring[rx_start_idx];
data = rx_buf->data;
rx_hdr = get_l2_fhdr(data);
data = (u8 *)rx_hdr + BNX2_RX_OFFSET;
dma_sync_single_for_cpu(&bp->pdev->dev,
dma_unmap_addr(rx_buf, mapping),
bp->rx_buf_use_size, PCI_DMA_FROMDEVICE);
if (rx_hdr->l2_fhdr_status &
(L2_FHDR_ERRORS_BAD_CRC |
L2_FHDR_ERRORS_PHY_DECODE |
L2_FHDR_ERRORS_ALIGNMENT |
L2_FHDR_ERRORS_TOO_SHORT |
L2_FHDR_ERRORS_GIANT_FRAME)) {
goto loopback_test_done;
}
if ((rx_hdr->l2_fhdr_pkt_len - 4) != pkt_size) {
goto loopback_test_done;
}
for (i = 14; i < pkt_size; i++) {
if (*(data + i) != (unsigned char) (i & 0xff)) {
goto loopback_test_done;
}
}
ret = 0;
loopback_test_done:
bp->loopback = 0;
return ret;
}
#define BNX2_MAC_LOOPBACK_FAILED 1
#define BNX2_PHY_LOOPBACK_FAILED 2
#define BNX2_LOOPBACK_FAILED (BNX2_MAC_LOOPBACK_FAILED | \
BNX2_PHY_LOOPBACK_FAILED)
static int
bnx2_test_loopback(struct bnx2 *bp)
{
int rc = 0;
if (!netif_running(bp->dev))
return BNX2_LOOPBACK_FAILED;
bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET);
spin_lock_bh(&bp->phy_lock);
bnx2_init_phy(bp, 1);
spin_unlock_bh(&bp->phy_lock);
if (bnx2_run_loopback(bp, BNX2_MAC_LOOPBACK))
rc |= BNX2_MAC_LOOPBACK_FAILED;
if (bnx2_run_loopback(bp, BNX2_PHY_LOOPBACK))
rc |= BNX2_PHY_LOOPBACK_FAILED;
return rc;
}
#define NVRAM_SIZE 0x200
#define CRC32_RESIDUAL 0xdebb20e3
static int
bnx2_test_nvram(struct bnx2 *bp)
{
__be32 buf[NVRAM_SIZE / 4];
u8 *data = (u8 *) buf;
int rc = 0;
u32 magic, csum;
if ((rc = bnx2_nvram_read(bp, 0, data, 4)) != 0)
goto test_nvram_done;
magic = be32_to_cpu(buf[0]);
if (magic != 0x669955aa) {
rc = -ENODEV;
goto test_nvram_done;
}
if ((rc = bnx2_nvram_read(bp, 0x100, data, NVRAM_SIZE)) != 0)
goto test_nvram_done;
csum = ether_crc_le(0x100, data);
if (csum != CRC32_RESIDUAL) {
rc = -ENODEV;
goto test_nvram_done;
}
csum = ether_crc_le(0x100, data + 0x100);
if (csum != CRC32_RESIDUAL) {
rc = -ENODEV;
}
test_nvram_done:
return rc;
}
static int
bnx2_test_link(struct bnx2 *bp)
{
u32 bmsr;
if (!netif_running(bp->dev))
return -ENODEV;
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
if (bp->link_up)
return 0;
return -ENODEV;
}
spin_lock_bh(&bp->phy_lock);
bnx2_enable_bmsr1(bp);
bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);
bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);
bnx2_disable_bmsr1(bp);
spin_unlock_bh(&bp->phy_lock);
if (bmsr & BMSR_LSTATUS) {
return 0;
}
return -ENODEV;
}
static int
bnx2_test_intr(struct bnx2 *bp)
{
int i;
u16 status_idx;
if (!netif_running(bp->dev))
return -ENODEV;
status_idx = BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD) & 0xffff;
/* This register is not touched during run-time. */
BNX2_WR(bp, BNX2_HC_COMMAND, bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW);
BNX2_RD(bp, BNX2_HC_COMMAND);
for (i = 0; i < 10; i++) {
if ((BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD) & 0xffff) !=
status_idx) {
break;
}
msleep_interruptible(10);
}
if (i < 10)
return 0;
return -ENODEV;
}
/* Determining link for parallel detection. */
static int
bnx2_5706_serdes_has_link(struct bnx2 *bp)
{
u32 mode_ctl, an_dbg, exp;
if (bp->phy_flags & BNX2_PHY_FLAG_NO_PARALLEL)
return 0;
bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_MODE_CTL);
bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &mode_ctl);
if (!(mode_ctl & MISC_SHDW_MODE_CTL_SIG_DET))
return 0;
bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG);
bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);
if (an_dbg & (MISC_SHDW_AN_DBG_NOSYNC | MISC_SHDW_AN_DBG_RUDI_INVALID))
return 0;
bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS, MII_EXPAND_REG1);
bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &exp);
bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &exp);
if (exp & MII_EXPAND_REG1_RUDI_C) /* receiving CONFIG */
return 0;
return 1;
}
static void
bnx2_5706_serdes_timer(struct bnx2 *bp)
{
int check_link = 1;
spin_lock(&bp->phy_lock);
if (bp->serdes_an_pending) {
bp->serdes_an_pending--;
check_link = 0;
} else if ((bp->link_up == 0) && (bp->autoneg & AUTONEG_SPEED)) {
u32 bmcr;
bp->current_interval = BNX2_TIMER_INTERVAL;
bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
if (bmcr & BMCR_ANENABLE) {
if (bnx2_5706_serdes_has_link(bp)) {
bmcr &= ~BMCR_ANENABLE;
bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;
bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
bp->phy_flags |= BNX2_PHY_FLAG_PARALLEL_DETECT;
}
}
}
else if ((bp->link_up) && (bp->autoneg & AUTONEG_SPEED) &&
(bp->phy_flags & BNX2_PHY_FLAG_PARALLEL_DETECT)) {
u32 phy2;
bnx2_write_phy(bp, 0x17, 0x0f01);
bnx2_read_phy(bp, 0x15, &phy2);
if (phy2 & 0x20) {
u32 bmcr;
bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
bmcr |= BMCR_ANENABLE;
bnx2_write_phy(bp, bp->mii_bmcr, bmcr);
bp->phy_flags &= ~BNX2_PHY_FLAG_PARALLEL_DETECT;
}
} else
bp->current_interval = BNX2_TIMER_INTERVAL;
if (check_link) {
u32 val;
bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG);
bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &val);
bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &val);
if (bp->link_up && (val & MISC_SHDW_AN_DBG_NOSYNC)) {
if (!(bp->phy_flags & BNX2_PHY_FLAG_FORCED_DOWN)) {
bnx2_5706s_force_link_dn(bp, 1);
bp->phy_flags |= BNX2_PHY_FLAG_FORCED_DOWN;
} else
bnx2_set_link(bp);
} else if (!bp->link_up && !(val & MISC_SHDW_AN_DBG_NOSYNC))
bnx2_set_link(bp);
}
spin_unlock(&bp->phy_lock);
}
static void
bnx2_5708_serdes_timer(struct bnx2 *bp)
{
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
return;
if ((bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE) == 0) {
bp->serdes_an_pending = 0;
return;
}
spin_lock(&bp->phy_lock);
if (bp->serdes_an_pending)
bp->serdes_an_pending--;
else if ((bp->link_up == 0) && (bp->autoneg & AUTONEG_SPEED)) {
u32 bmcr;
bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
if (bmcr & BMCR_ANENABLE) {
bnx2_enable_forced_2g5(bp);
bp->current_interval = BNX2_SERDES_FORCED_TIMEOUT;
} else {
bnx2_disable_forced_2g5(bp);
bp->serdes_an_pending = 2;
bp->current_interval = BNX2_TIMER_INTERVAL;
}
} else
bp->current_interval = BNX2_TIMER_INTERVAL;
spin_unlock(&bp->phy_lock);
}
static void
bnx2_timer(unsigned long data)
{
struct bnx2 *bp = (struct bnx2 *) data;
if (!netif_running(bp->dev))
return;
if (atomic_read(&bp->intr_sem) != 0)
goto bnx2_restart_timer;
if ((bp->flags & (BNX2_FLAG_USING_MSI | BNX2_FLAG_ONE_SHOT_MSI)) ==
BNX2_FLAG_USING_MSI)
bnx2_chk_missed_msi(bp);
bnx2_send_heart_beat(bp);
bp->stats_blk->stat_FwRxDrop =
bnx2_reg_rd_ind(bp, BNX2_FW_RX_DROP_COUNT);
/* workaround occasional corrupted counters */
if ((bp->flags & BNX2_FLAG_BROKEN_STATS) && bp->stats_ticks)
BNX2_WR(bp, BNX2_HC_COMMAND, bp->hc_cmd |
BNX2_HC_COMMAND_STATS_NOW);
if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
if (CHIP_NUM(bp) == CHIP_NUM_5706)
bnx2_5706_serdes_timer(bp);
else
bnx2_5708_serdes_timer(bp);
}
bnx2_restart_timer:
mod_timer(&bp->timer, jiffies + bp->current_interval);
}
static int
bnx2_request_irq(struct bnx2 *bp)
{
unsigned long flags;
struct bnx2_irq *irq;
int rc = 0, i;
if (bp->flags & BNX2_FLAG_USING_MSI_OR_MSIX)
flags = 0;
else
flags = IRQF_SHARED;
for (i = 0; i < bp->irq_nvecs; i++) {
irq = &bp->irq_tbl[i];
rc = request_irq(irq->vector, irq->handler, flags, irq->name,
&bp->bnx2_napi[i]);
if (rc)
break;
irq->requested = 1;
}
return rc;
}
static void
__bnx2_free_irq(struct bnx2 *bp)
{
struct bnx2_irq *irq;
int i;
for (i = 0; i < bp->irq_nvecs; i++) {
irq = &bp->irq_tbl[i];
if (irq->requested)
free_irq(irq->vector, &bp->bnx2_napi[i]);
irq->requested = 0;
}
}
static void
bnx2_free_irq(struct bnx2 *bp)
{
__bnx2_free_irq(bp);
if (bp->flags & BNX2_FLAG_USING_MSI)
pci_disable_msi(bp->pdev);
else if (bp->flags & BNX2_FLAG_USING_MSIX)
pci_disable_msix(bp->pdev);
bp->flags &= ~(BNX2_FLAG_USING_MSI_OR_MSIX | BNX2_FLAG_ONE_SHOT_MSI);
}
static void
bnx2_enable_msix(struct bnx2 *bp, int msix_vecs)
{
int i, total_vecs, rc;
struct msix_entry msix_ent[BNX2_MAX_MSIX_VEC];
struct net_device *dev = bp->dev;
const int len = sizeof(bp->irq_tbl[0].name);
bnx2_setup_msix_tbl(bp);
BNX2_WR(bp, BNX2_PCI_MSIX_CONTROL, BNX2_MAX_MSIX_HW_VEC - 1);
BNX2_WR(bp, BNX2_PCI_MSIX_TBL_OFF_BIR, BNX2_PCI_GRC_WINDOW2_BASE);
BNX2_WR(bp, BNX2_PCI_MSIX_PBA_OFF_BIT, BNX2_PCI_GRC_WINDOW3_BASE);
/* Need to flush the previous three writes to ensure MSI-X
* is setup properly */
BNX2_RD(bp, BNX2_PCI_MSIX_CONTROL);
for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {
msix_ent[i].entry = i;
msix_ent[i].vector = 0;
}
total_vecs = msix_vecs;
#ifdef BCM_CNIC
total_vecs++;
#endif
rc = -ENOSPC;
while (total_vecs >= BNX2_MIN_MSIX_VEC) {
rc = pci_enable_msix(bp->pdev, msix_ent, total_vecs);
if (rc <= 0)
break;
if (rc > 0)
total_vecs = rc;
}
if (rc != 0)
return;
msix_vecs = total_vecs;
#ifdef BCM_CNIC
msix_vecs--;
#endif
bp->irq_nvecs = msix_vecs;
bp->flags |= BNX2_FLAG_USING_MSIX | BNX2_FLAG_ONE_SHOT_MSI;
for (i = 0; i < total_vecs; i++) {
bp->irq_tbl[i].vector = msix_ent[i].vector;
snprintf(bp->irq_tbl[i].name, len, "%s-%d", dev->name, i);
bp->irq_tbl[i].handler = bnx2_msi_1shot;
}
}
static int
bnx2_setup_int_mode(struct bnx2 *bp, int dis_msi)
{
int cpus = netif_get_num_default_rss_queues();
int msix_vecs;
if (!bp->num_req_rx_rings)
msix_vecs = max(cpus + 1, bp->num_req_tx_rings);
else if (!bp->num_req_tx_rings)
msix_vecs = max(cpus, bp->num_req_rx_rings);
else
msix_vecs = max(bp->num_req_rx_rings, bp->num_req_tx_rings);
msix_vecs = min(msix_vecs, RX_MAX_RINGS);
bp->irq_tbl[0].handler = bnx2_interrupt;
strcpy(bp->irq_tbl[0].name, bp->dev->name);
bp->irq_nvecs = 1;
bp->irq_tbl[0].vector = bp->pdev->irq;
if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !dis_msi)
bnx2_enable_msix(bp, msix_vecs);
if ((bp->flags & BNX2_FLAG_MSI_CAP) && !dis_msi &&
!(bp->flags & BNX2_FLAG_USING_MSIX)) {
if (pci_enable_msi(bp->pdev) == 0) {
bp->flags |= BNX2_FLAG_USING_MSI;
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
bp->flags |= BNX2_FLAG_ONE_SHOT_MSI;
bp->irq_tbl[0].handler = bnx2_msi_1shot;
} else
bp->irq_tbl[0].handler = bnx2_msi;
bp->irq_tbl[0].vector = bp->pdev->irq;
}
}
if (!bp->num_req_tx_rings)
bp->num_tx_rings = rounddown_pow_of_two(bp->irq_nvecs);
else
bp->num_tx_rings = min(bp->irq_nvecs, bp->num_req_tx_rings);
if (!bp->num_req_rx_rings)
bp->num_rx_rings = bp->irq_nvecs;
else
bp->num_rx_rings = min(bp->irq_nvecs, bp->num_req_rx_rings);
netif_set_real_num_tx_queues(bp->dev, bp->num_tx_rings);
return netif_set_real_num_rx_queues(bp->dev, bp->num_rx_rings);
}
/* Called with rtnl_lock */
static int
bnx2_open(struct net_device *dev)
{
struct bnx2 *bp = netdev_priv(dev);
int rc;
rc = bnx2_request_firmware(bp);
if (rc < 0)
goto out;
netif_carrier_off(dev);
bnx2_set_power_state(bp, PCI_D0);
bnx2_disable_int(bp);
rc = bnx2_setup_int_mode(bp, disable_msi);
if (rc)
goto open_err;
bnx2_init_napi(bp);
bnx2_napi_enable(bp);
rc = bnx2_alloc_mem(bp);
if (rc)
goto open_err;
rc = bnx2_request_irq(bp);
if (rc)
goto open_err;
rc = bnx2_init_nic(bp, 1);
if (rc)
goto open_err;
mod_timer(&bp->timer, jiffies + bp->current_interval);
atomic_set(&bp->intr_sem, 0);
memset(bp->temp_stats_blk, 0, sizeof(struct statistics_block));
bnx2_enable_int(bp);
if (bp->flags & BNX2_FLAG_USING_MSI) {
/* Test MSI to make sure it is working
* If MSI test fails, go back to INTx mode
*/
if (bnx2_test_intr(bp) != 0) {
netdev_warn(bp->dev, "No interrupt was generated using MSI, switching to INTx mode. Please report this failure to the PCI maintainer and include system chipset information.\n");
bnx2_disable_int(bp);
bnx2_free_irq(bp);
bnx2_setup_int_mode(bp, 1);
rc = bnx2_init_nic(bp, 0);
if (!rc)
rc = bnx2_request_irq(bp);
if (rc) {
del_timer_sync(&bp->timer);
goto open_err;
}
bnx2_enable_int(bp);
}
}
if (bp->flags & BNX2_FLAG_USING_MSI)
netdev_info(dev, "using MSI\n");
else if (bp->flags & BNX2_FLAG_USING_MSIX)
netdev_info(dev, "using MSIX\n");
netif_tx_start_all_queues(dev);
out:
return rc;
open_err:
bnx2_napi_disable(bp);
bnx2_free_skbs(bp);
bnx2_free_irq(bp);
bnx2_free_mem(bp);
bnx2_del_napi(bp);
bnx2_release_firmware(bp);
goto out;
}
static void
bnx2_reset_task(struct work_struct *work)
{
struct bnx2 *bp = container_of(work, struct bnx2, reset_task);
int rc;
u16 pcicmd;
rtnl_lock();
if (!netif_running(bp->dev)) {
rtnl_unlock();
return;
}
bnx2_netif_stop(bp, true);
pci_read_config_word(bp->pdev, PCI_COMMAND, &pcicmd);
if (!(pcicmd & PCI_COMMAND_MEMORY)) {
/* in case PCI block has reset */
pci_restore_state(bp->pdev);
pci_save_state(bp->pdev);
}
rc = bnx2_init_nic(bp, 1);
if (rc) {
netdev_err(bp->dev, "failed to reset NIC, closing\n");
bnx2_napi_enable(bp);
dev_close(bp->dev);
rtnl_unlock();
return;
}
atomic_set(&bp->intr_sem, 1);
bnx2_netif_start(bp, true);
rtnl_unlock();
}
#define BNX2_FTQ_ENTRY(ftq) { __stringify(ftq##FTQ_CTL), BNX2_##ftq##FTQ_CTL }
static void
bnx2_dump_ftq(struct bnx2 *bp)
{
int i;
u32 reg, bdidx, cid, valid;
struct net_device *dev = bp->dev;
static const struct ftq_reg {
char *name;
u32 off;
} ftq_arr[] = {
BNX2_FTQ_ENTRY(RV2P_P),
BNX2_FTQ_ENTRY(RV2P_T),
BNX2_FTQ_ENTRY(RV2P_M),
BNX2_FTQ_ENTRY(TBDR_),
BNX2_FTQ_ENTRY(TDMA_),
BNX2_FTQ_ENTRY(TXP_),
BNX2_FTQ_ENTRY(TXP_),
BNX2_FTQ_ENTRY(TPAT_),
BNX2_FTQ_ENTRY(RXP_C),
BNX2_FTQ_ENTRY(RXP_),
BNX2_FTQ_ENTRY(COM_COMXQ_),
BNX2_FTQ_ENTRY(COM_COMTQ_),
BNX2_FTQ_ENTRY(COM_COMQ_),
BNX2_FTQ_ENTRY(CP_CPQ_),
};
netdev_err(dev, "<--- start FTQ dump --->\n");
for (i = 0; i < ARRAY_SIZE(ftq_arr); i++)
netdev_err(dev, "%s %08x\n", ftq_arr[i].name,
bnx2_reg_rd_ind(bp, ftq_arr[i].off));
netdev_err(dev, "CPU states:\n");
for (reg = BNX2_TXP_CPU_MODE; reg <= BNX2_CP_CPU_MODE; reg += 0x40000)
netdev_err(dev, "%06x mode %x state %x evt_mask %x pc %x pc %x instr %x\n",
reg, bnx2_reg_rd_ind(bp, reg),
bnx2_reg_rd_ind(bp, reg + 4),
bnx2_reg_rd_ind(bp, reg + 8),
bnx2_reg_rd_ind(bp, reg + 0x1c),
bnx2_reg_rd_ind(bp, reg + 0x1c),
bnx2_reg_rd_ind(bp, reg + 0x20));
netdev_err(dev, "<--- end FTQ dump --->\n");
netdev_err(dev, "<--- start TBDC dump --->\n");
netdev_err(dev, "TBDC free cnt: %ld\n",
BNX2_RD(bp, BNX2_TBDC_STATUS) & BNX2_TBDC_STATUS_FREE_CNT);
netdev_err(dev, "LINE CID BIDX CMD VALIDS\n");
for (i = 0; i < 0x20; i++) {
int j = 0;
BNX2_WR(bp, BNX2_TBDC_BD_ADDR, i);
BNX2_WR(bp, BNX2_TBDC_CAM_OPCODE,
BNX2_TBDC_CAM_OPCODE_OPCODE_CAM_READ);
BNX2_WR(bp, BNX2_TBDC_COMMAND, BNX2_TBDC_COMMAND_CMD_REG_ARB);
while ((BNX2_RD(bp, BNX2_TBDC_COMMAND) &
BNX2_TBDC_COMMAND_CMD_REG_ARB) && j < 100)
j++;
cid = BNX2_RD(bp, BNX2_TBDC_CID);
bdidx = BNX2_RD(bp, BNX2_TBDC_BIDX);
valid = BNX2_RD(bp, BNX2_TBDC_CAM_OPCODE);
netdev_err(dev, "%02x %06x %04lx %02x [%x]\n",
i, cid, bdidx & BNX2_TBDC_BDIDX_BDIDX,
bdidx >> 24, (valid >> 8) & 0x0ff);
}
netdev_err(dev, "<--- end TBDC dump --->\n");
}
static void
bnx2_dump_state(struct bnx2 *bp)
{
struct net_device *dev = bp->dev;
u32 val1, val2;
pci_read_config_dword(bp->pdev, PCI_COMMAND, &val1);
netdev_err(dev, "DEBUG: intr_sem[%x] PCI_CMD[%08x]\n",
atomic_read(&bp->intr_sem), val1);
pci_read_config_dword(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &val1);
pci_read_config_dword(bp->pdev, BNX2_PCICFG_MISC_CONFIG, &val2);
netdev_err(dev, "DEBUG: PCI_PM[%08x] PCI_MISC_CFG[%08x]\n", val1, val2);
netdev_err(dev, "DEBUG: EMAC_TX_STATUS[%08x] EMAC_RX_STATUS[%08x]\n",
BNX2_RD(bp, BNX2_EMAC_TX_STATUS),
BNX2_RD(bp, BNX2_EMAC_RX_STATUS));
netdev_err(dev, "DEBUG: RPM_MGMT_PKT_CTRL[%08x]\n",
BNX2_RD(bp, BNX2_RPM_MGMT_PKT_CTRL));
netdev_err(dev, "DEBUG: HC_STATS_INTERRUPT_STATUS[%08x]\n",
BNX2_RD(bp, BNX2_HC_STATS_INTERRUPT_STATUS));
if (bp->flags & BNX2_FLAG_USING_MSIX)
netdev_err(dev, "DEBUG: PBA[%08x]\n",
BNX2_RD(bp, BNX2_PCI_GRC_WINDOW3_BASE));
}
static void
bnx2_tx_timeout(struct net_device *dev)
{
struct bnx2 *bp = netdev_priv(dev);
bnx2_dump_ftq(bp);
bnx2_dump_state(bp);
bnx2_dump_mcp_state(bp);
/* This allows the netif to be shutdown gracefully before resetting */
schedule_work(&bp->reset_task);
}
/* Called with netif_tx_lock.
* bnx2_tx_int() runs without netif_tx_lock unless it needs to call
* netif_wake_queue().
*/
static netdev_tx_t
bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct bnx2 *bp = netdev_priv(dev);
dma_addr_t mapping;
struct tx_bd *txbd;
struct sw_tx_bd *tx_buf;
u32 len, vlan_tag_flags, last_frag, mss;
u16 prod, ring_prod;
int i;
struct bnx2_napi *bnapi;
struct bnx2_tx_ring_info *txr;
struct netdev_queue *txq;
/* Determine which tx ring we will be placed on */
i = skb_get_queue_mapping(skb);
bnapi = &bp->bnx2_napi[i];
txr = &bnapi->tx_ring;
txq = netdev_get_tx_queue(dev, i);
if (unlikely(bnx2_tx_avail(bp, txr) <
(skb_shinfo(skb)->nr_frags + 1))) {
netif_tx_stop_queue(txq);
netdev_err(dev, "BUG! Tx ring full when queue awake!\n");
return NETDEV_TX_BUSY;
}
len = skb_headlen(skb);
prod = txr->tx_prod;
ring_prod = TX_RING_IDX(prod);
vlan_tag_flags = 0;
if (skb->ip_summed == CHECKSUM_PARTIAL) {
vlan_tag_flags |= TX_BD_FLAGS_TCP_UDP_CKSUM;
}
if (vlan_tx_tag_present(skb)) {
vlan_tag_flags |=
(TX_BD_FLAGS_VLAN_TAG | (vlan_tx_tag_get(skb) << 16));
}
if ((mss = skb_shinfo(skb)->gso_size)) {
u32 tcp_opt_len;
struct iphdr *iph;
vlan_tag_flags |= TX_BD_FLAGS_SW_LSO;
tcp_opt_len = tcp_optlen(skb);
if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) {
u32 tcp_off = skb_transport_offset(skb) -
sizeof(struct ipv6hdr) - ETH_HLEN;
vlan_tag_flags |= ((tcp_opt_len >> 2) << 8) |
TX_BD_FLAGS_SW_FLAGS;
if (likely(tcp_off == 0))
vlan_tag_flags &= ~TX_BD_FLAGS_TCP6_OFF0_MSK;
else {
tcp_off >>= 3;
vlan_tag_flags |= ((tcp_off & 0x3) <<
TX_BD_FLAGS_TCP6_OFF0_SHL) |
((tcp_off & 0x10) <<
TX_BD_FLAGS_TCP6_OFF4_SHL);
mss |= (tcp_off & 0xc) << TX_BD_TCP6_OFF2_SHL;
}
} else {
iph = ip_hdr(skb);
if (tcp_opt_len || (iph->ihl > 5)) {
vlan_tag_flags |= ((iph->ihl - 5) +
(tcp_opt_len >> 2)) << 8;
}
}
} else
mss = 0;
mapping = dma_map_single(&bp->pdev->dev, skb->data, len, PCI_DMA_TODEVICE);
if (dma_mapping_error(&bp->pdev->dev, mapping)) {
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
tx_buf = &txr->tx_buf_ring[ring_prod];
tx_buf->skb = skb;
dma_unmap_addr_set(tx_buf, mapping, mapping);
txbd = &txr->tx_desc_ring[ring_prod];
txbd->tx_bd_haddr_hi = (u64) mapping >> 32;
txbd->tx_bd_haddr_lo = (u64) mapping & 0xffffffff;
txbd->tx_bd_mss_nbytes = len | (mss << 16);
txbd->tx_bd_vlan_tag_flags = vlan_tag_flags | TX_BD_FLAGS_START;
last_frag = skb_shinfo(skb)->nr_frags;
tx_buf->nr_frags = last_frag;
tx_buf->is_gso = skb_is_gso(skb);
for (i = 0; i < last_frag; i++) {
const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
prod = NEXT_TX_BD(prod);
ring_prod = TX_RING_IDX(prod);
txbd = &txr->tx_desc_ring[ring_prod];
len = skb_frag_size(frag);
mapping = skb_frag_dma_map(&bp->pdev->dev, frag, 0, len,
DMA_TO_DEVICE);
if (dma_mapping_error(&bp->pdev->dev, mapping))
goto dma_error;
dma_unmap_addr_set(&txr->tx_buf_ring[ring_prod], mapping,
mapping);
txbd->tx_bd_haddr_hi = (u64) mapping >> 32;
txbd->tx_bd_haddr_lo = (u64) mapping & 0xffffffff;
txbd->tx_bd_mss_nbytes = len | (mss << 16);
txbd->tx_bd_vlan_tag_flags = vlan_tag_flags;
}
txbd->tx_bd_vlan_tag_flags |= TX_BD_FLAGS_END;
/* Sync BD data before updating TX mailbox */
wmb();
netdev_tx_sent_queue(txq, skb->len);
prod = NEXT_TX_BD(prod);
txr->tx_prod_bseq += skb->len;
BNX2_WR16(bp, txr->tx_bidx_addr, prod);
BNX2_WR(bp, txr->tx_bseq_addr, txr->tx_prod_bseq);
mmiowb();
txr->tx_prod = prod;
if (unlikely(bnx2_tx_avail(bp, txr) <= MAX_SKB_FRAGS)) {
netif_tx_stop_queue(txq);
/* netif_tx_stop_queue() must be done before checking
* tx index in bnx2_tx_avail() below, because in
* bnx2_tx_int(), we update tx index before checking for
* netif_tx_queue_stopped().
*/
smp_mb();
if (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh)
netif_tx_wake_queue(txq);
}
return NETDEV_TX_OK;
dma_error:
/* save value of frag that failed */
last_frag = i;
/* start back at beginning and unmap skb */
prod = txr->tx_prod;
ring_prod = TX_RING_IDX(prod);
tx_buf = &txr->tx_buf_ring[ring_prod];
tx_buf->skb = NULL;
dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),
skb_headlen(skb), PCI_DMA_TODEVICE);
/* unmap remaining mapped pages */
for (i = 0; i < last_frag; i++) {
prod = NEXT_TX_BD(prod);
ring_prod = TX_RING_IDX(prod);
tx_buf = &txr->tx_buf_ring[ring_prod];
dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),
skb_frag_size(&skb_shinfo(skb)->frags[i]),
PCI_DMA_TODEVICE);
}
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
/* Called with rtnl_lock */
static int
bnx2_close(struct net_device *dev)
{
struct bnx2 *bp = netdev_priv(dev);
bnx2_disable_int_sync(bp);
bnx2_napi_disable(bp);
netif_tx_disable(dev);
del_timer_sync(&bp->timer);
bnx2_shutdown_chip(bp);
bnx2_free_irq(bp);
bnx2_free_skbs(bp);
bnx2_free_mem(bp);
bnx2_del_napi(bp);
bp->link_up = 0;
netif_carrier_off(bp->dev);
bnx2_set_power_state(bp, PCI_D3hot);
return 0;
}
static void
bnx2_save_stats(struct bnx2 *bp)
{
u32 *hw_stats = (u32 *) bp->stats_blk;
u32 *temp_stats = (u32 *) bp->temp_stats_blk;
int i;
/* The 1st 10 counters are 64-bit counters */
for (i = 0; i < 20; i += 2) {
u32 hi;
u64 lo;
hi = temp_stats[i] + hw_stats[i];
lo = (u64) temp_stats[i + 1] + (u64) hw_stats[i + 1];
if (lo > 0xffffffff)
hi++;
temp_stats[i] = hi;
temp_stats[i + 1] = lo & 0xffffffff;
}
for ( ; i < sizeof(struct statistics_block) / 4; i++)
temp_stats[i] += hw_stats[i];
}
#define GET_64BIT_NET_STATS64(ctr) \
(((u64) (ctr##_hi) << 32) + (u64) (ctr##_lo))
#define GET_64BIT_NET_STATS(ctr) \
GET_64BIT_NET_STATS64(bp->stats_blk->ctr) + \
GET_64BIT_NET_STATS64(bp->temp_stats_blk->ctr)
#define GET_32BIT_NET_STATS(ctr) \
(unsigned long) (bp->stats_blk->ctr + \
bp->temp_stats_blk->ctr)
static struct rtnl_link_stats64 *
bnx2_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats)
{
struct bnx2 *bp = netdev_priv(dev);
if (bp->stats_blk == NULL)
return net_stats;
net_stats->rx_packets =
GET_64BIT_NET_STATS(stat_IfHCInUcastPkts) +
GET_64BIT_NET_STATS(stat_IfHCInMulticastPkts) +
GET_64BIT_NET_STATS(stat_IfHCInBroadcastPkts);
net_stats->tx_packets =
GET_64BIT_NET_STATS(stat_IfHCOutUcastPkts) +
GET_64BIT_NET_STATS(stat_IfHCOutMulticastPkts) +
GET_64BIT_NET_STATS(stat_IfHCOutBroadcastPkts);
net_stats->rx_bytes =
GET_64BIT_NET_STATS(stat_IfHCInOctets);
net_stats->tx_bytes =
GET_64BIT_NET_STATS(stat_IfHCOutOctets);
net_stats->multicast =
GET_64BIT_NET_STATS(stat_IfHCInMulticastPkts);
net_stats->collisions =
GET_32BIT_NET_STATS(stat_EtherStatsCollisions);
net_stats->rx_length_errors =
GET_32BIT_NET_STATS(stat_EtherStatsUndersizePkts) +
GET_32BIT_NET_STATS(stat_EtherStatsOverrsizePkts);
net_stats->rx_over_errors =
GET_32BIT_NET_STATS(stat_IfInFTQDiscards) +
GET_32BIT_NET_STATS(stat_IfInMBUFDiscards);
net_stats->rx_frame_errors =
GET_32BIT_NET_STATS(stat_Dot3StatsAlignmentErrors);
net_stats->rx_crc_errors =
GET_32BIT_NET_STATS(stat_Dot3StatsFCSErrors);
net_stats->rx_errors = net_stats->rx_length_errors +
net_stats->rx_over_errors + net_stats->rx_frame_errors +
net_stats->rx_crc_errors;
net_stats->tx_aborted_errors =
GET_32BIT_NET_STATS(stat_Dot3StatsExcessiveCollisions) +
GET_32BIT_NET_STATS(stat_Dot3StatsLateCollisions);
if ((CHIP_NUM(bp) == CHIP_NUM_5706) ||
(CHIP_ID(bp) == CHIP_ID_5708_A0))
net_stats->tx_carrier_errors = 0;
else {
net_stats->tx_carrier_errors =
GET_32BIT_NET_STATS(stat_Dot3StatsCarrierSenseErrors);
}
net_stats->tx_errors =
GET_32BIT_NET_STATS(stat_emac_tx_stat_dot3statsinternalmactransmiterrors) +
net_stats->tx_aborted_errors +
net_stats->tx_carrier_errors;
net_stats->rx_missed_errors =
GET_32BIT_NET_STATS(stat_IfInFTQDiscards) +
GET_32BIT_NET_STATS(stat_IfInMBUFDiscards) +
GET_32BIT_NET_STATS(stat_FwRxDrop);
return net_stats;
}
/* All ethtool functions called with rtnl_lock */
static int
bnx2_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct bnx2 *bp = netdev_priv(dev);
int support_serdes = 0, support_copper = 0;
cmd->supported = SUPPORTED_Autoneg;
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
support_serdes = 1;
support_copper = 1;
} else if (bp->phy_port == PORT_FIBRE)
support_serdes = 1;
else
support_copper = 1;
if (support_serdes) {
cmd->supported |= SUPPORTED_1000baseT_Full |
SUPPORTED_FIBRE;
if (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE)
cmd->supported |= SUPPORTED_2500baseX_Full;
}
if (support_copper) {
cmd->supported |= SUPPORTED_10baseT_Half |
SUPPORTED_10baseT_Full |
SUPPORTED_100baseT_Half |
SUPPORTED_100baseT_Full |
SUPPORTED_1000baseT_Full |
SUPPORTED_TP;
}
spin_lock_bh(&bp->phy_lock);
cmd->port = bp->phy_port;
cmd->advertising = bp->advertising;
if (bp->autoneg & AUTONEG_SPEED) {
cmd->autoneg = AUTONEG_ENABLE;
} else {
cmd->autoneg = AUTONEG_DISABLE;
}
if (netif_carrier_ok(dev)) {
ethtool_cmd_speed_set(cmd, bp->line_speed);
cmd->duplex = bp->duplex;
}
else {
ethtool_cmd_speed_set(cmd, -1);
cmd->duplex = -1;
}
spin_unlock_bh(&bp->phy_lock);
cmd->transceiver = XCVR_INTERNAL;
cmd->phy_address = bp->phy_addr;
return 0;
}
static int
bnx2_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct bnx2 *bp = netdev_priv(dev);
u8 autoneg = bp->autoneg;
u8 req_duplex = bp->req_duplex;
u16 req_line_speed = bp->req_line_speed;
u32 advertising = bp->advertising;
int err = -EINVAL;
spin_lock_bh(&bp->phy_lock);
if (cmd->port != PORT_TP && cmd->port != PORT_FIBRE)
goto err_out_unlock;
if (cmd->port != bp->phy_port &&
!(bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP))
goto err_out_unlock;
/* If device is down, we can store the settings only if the user
* is setting the currently active port.
*/
if (!netif_running(dev) && cmd->port != bp->phy_port)
goto err_out_unlock;
if (cmd->autoneg == AUTONEG_ENABLE) {
autoneg |= AUTONEG_SPEED;
advertising = cmd->advertising;
if (cmd->port == PORT_TP) {
advertising &= ETHTOOL_ALL_COPPER_SPEED;
if (!advertising)
advertising = ETHTOOL_ALL_COPPER_SPEED;
} else {
advertising &= ETHTOOL_ALL_FIBRE_SPEED;
if (!advertising)
advertising = ETHTOOL_ALL_FIBRE_SPEED;
}
advertising |= ADVERTISED_Autoneg;
}
else {
u32 speed = ethtool_cmd_speed(cmd);
if (cmd->port == PORT_FIBRE) {
if ((speed != SPEED_1000 &&
speed != SPEED_2500) ||
(cmd->duplex != DUPLEX_FULL))
goto err_out_unlock;
if (speed == SPEED_2500 &&
!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))
goto err_out_unlock;
} else if (speed == SPEED_1000 || speed == SPEED_2500)
goto err_out_unlock;
autoneg &= ~AUTONEG_SPEED;
req_line_speed = speed;
req_duplex = cmd->duplex;
advertising = 0;
}
bp->autoneg = autoneg;
bp->advertising = advertising;
bp->req_line_speed = req_line_speed;
bp->req_duplex = req_duplex;
err = 0;
/* If device is down, the new settings will be picked up when it is
* brought up.
*/
if (netif_running(dev))
err = bnx2_setup_phy(bp, cmd->port);
err_out_unlock:
spin_unlock_bh(&bp->phy_lock);
return err;
}
static void
bnx2_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
struct bnx2 *bp = netdev_priv(dev);
strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
strlcpy(info->bus_info, pci_name(bp->pdev), sizeof(info->bus_info));
strlcpy(info->fw_version, bp->fw_version, sizeof(info->fw_version));
}
#define BNX2_REGDUMP_LEN (32 * 1024)
static int
bnx2_get_regs_len(struct net_device *dev)
{
return BNX2_REGDUMP_LEN;
}
static void
bnx2_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p)
{
u32 *p = _p, i, offset;
u8 *orig_p = _p;
struct bnx2 *bp = netdev_priv(dev);
static const u32 reg_boundaries[] = {
0x0000, 0x0098, 0x0400, 0x045c,
0x0800, 0x0880, 0x0c00, 0x0c10,
0x0c30, 0x0d08, 0x1000, 0x101c,
0x1040, 0x1048, 0x1080, 0x10a4,
0x1400, 0x1490, 0x1498, 0x14f0,
0x1500, 0x155c, 0x1580, 0x15dc,
0x1600, 0x1658, 0x1680, 0x16d8,
0x1800, 0x1820, 0x1840, 0x1854,
0x1880, 0x1894, 0x1900, 0x1984,
0x1c00, 0x1c0c, 0x1c40, 0x1c54,
0x1c80, 0x1c94, 0x1d00, 0x1d84,
0x2000, 0x2030, 0x23c0, 0x2400,
0x2800, 0x2820, 0x2830, 0x2850,
0x2b40, 0x2c10, 0x2fc0, 0x3058,
0x3c00, 0x3c94, 0x4000, 0x4010,
0x4080, 0x4090, 0x43c0, 0x4458,
0x4c00, 0x4c18, 0x4c40, 0x4c54,
0x4fc0, 0x5010, 0x53c0, 0x5444,
0x5c00, 0x5c18, 0x5c80, 0x5c90,
0x5fc0, 0x6000, 0x6400, 0x6428,
0x6800, 0x6848, 0x684c, 0x6860,
0x6888, 0x6910, 0x8000
};
regs->version = 0;
memset(p, 0, BNX2_REGDUMP_LEN);
if (!netif_running(bp->dev))
return;
i = 0;
offset = reg_boundaries[0];
p += offset;
while (offset < BNX2_REGDUMP_LEN) {
*p++ = BNX2_RD(bp, offset);
offset += 4;
if (offset == reg_boundaries[i + 1]) {
offset = reg_boundaries[i + 2];
p = (u32 *) (orig_p + offset);
i += 2;
}
}
}
static void
bnx2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct bnx2 *bp = netdev_priv(dev);
if (bp->flags & BNX2_FLAG_NO_WOL) {
wol->supported = 0;
wol->wolopts = 0;
}
else {
wol->supported = WAKE_MAGIC;
if (bp->wol)
wol->wolopts = WAKE_MAGIC;
else
wol->wolopts = 0;
}
memset(&wol->sopass, 0, sizeof(wol->sopass));
}
static int
bnx2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct bnx2 *bp = netdev_priv(dev);
if (wol->wolopts & ~WAKE_MAGIC)
return -EINVAL;
if (wol->wolopts & WAKE_MAGIC) {
if (bp->flags & BNX2_FLAG_NO_WOL)
return -EINVAL;
bp->wol = 1;
}
else {
bp->wol = 0;
}
return 0;
}
static int
bnx2_nway_reset(struct net_device *dev)
{
struct bnx2 *bp = netdev_priv(dev);
u32 bmcr;
if (!netif_running(dev))
return -EAGAIN;
if (!(bp->autoneg & AUTONEG_SPEED)) {
return -EINVAL;
}
spin_lock_bh(&bp->phy_lock);
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {
int rc;
rc = bnx2_setup_remote_phy(bp, bp->phy_port);
spin_unlock_bh(&bp->phy_lock);
return rc;
}
/* Force a link down visible on the other side */
if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK);
spin_unlock_bh(&bp->phy_lock);
msleep(20);
spin_lock_bh(&bp->phy_lock);
bp->current_interval = BNX2_SERDES_AN_TIMEOUT;
bp->serdes_an_pending = 1;
mod_timer(&bp->timer, jiffies + bp->current_interval);
}
bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);
bmcr &= ~BMCR_LOOPBACK;
bnx2_write_phy(bp, bp->mii_bmcr, bmcr | BMCR_ANRESTART | BMCR_ANENABLE);
spin_unlock_bh(&bp->phy_lock);
return 0;
}
static u32
bnx2_get_link(struct net_device *dev)
{
struct bnx2 *bp = netdev_priv(dev);
return bp->link_up;
}
static int
bnx2_get_eeprom_len(struct net_device *dev)
{
struct bnx2 *bp = netdev_priv(dev);
if (bp->flash_info == NULL)
return 0;
return (int) bp->flash_size;
}
static int
bnx2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
u8 *eebuf)
{
struct bnx2 *bp = netdev_priv(dev);
int rc;
if (!netif_running(dev))
return -EAGAIN;
/* parameters already validated in ethtool_get_eeprom */
rc = bnx2_nvram_read(bp, eeprom->offset, eebuf, eeprom->len);
return rc;
}
static int
bnx2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
u8 *eebuf)
{
struct bnx2 *bp = netdev_priv(dev);
int rc;
if (!netif_running(dev))
return -EAGAIN;
/* parameters already validated in ethtool_set_eeprom */
rc = bnx2_nvram_write(bp, eeprom->offset, eebuf, eeprom->len);
return rc;
}
static int
bnx2_get_coalesce(struct net_device *dev, struct ethtool_coalesce *coal)
{
struct bnx2 *bp = netdev_priv(dev);
memset(coal, 0, sizeof(struct ethtool_coalesce));
coal->rx_coalesce_usecs = bp->rx_ticks;
coal->rx_max_coalesced_frames = bp->rx_quick_cons_trip;
coal->rx_coalesce_usecs_irq = bp->rx_ticks_int;
coal->rx_max_coalesced_frames_irq = bp->rx_quick_cons_trip_int;
coal->tx_coalesce_usecs = bp->tx_ticks;
coal->tx_max_coalesced_frames = bp->tx_quick_cons_trip;
coal->tx_coalesce_usecs_irq = bp->tx_ticks_int;
coal->tx_max_coalesced_frames_irq = bp->tx_quick_cons_trip_int;
coal->stats_block_coalesce_usecs = bp->stats_ticks;
return 0;
}
static int
bnx2_set_coalesce(struct net_device *dev, struct ethtool_coalesce *coal)
{
struct bnx2 *bp = netdev_priv(dev);
bp->rx_ticks = (u16) coal->rx_coalesce_usecs;
if (bp->rx_ticks > 0x3ff) bp->rx_ticks = 0x3ff;
bp->rx_quick_cons_trip = (u16) coal->rx_max_coalesced_frames;
if (bp->rx_quick_cons_trip > 0xff) bp->rx_quick_cons_trip = 0xff;
bp->rx_ticks_int = (u16) coal->rx_coalesce_usecs_irq;
if (bp->rx_ticks_int > 0x3ff) bp->rx_ticks_int = 0x3ff;
bp->rx_quick_cons_trip_int = (u16) coal->rx_max_coalesced_frames_irq;
if (bp->rx_quick_cons_trip_int > 0xff)
bp->rx_quick_cons_trip_int = 0xff;
bp->tx_ticks = (u16) coal->tx_coalesce_usecs;
if (bp->tx_ticks > 0x3ff) bp->tx_ticks = 0x3ff;
bp->tx_quick_cons_trip = (u16) coal->tx_max_coalesced_frames;
if (bp->tx_quick_cons_trip > 0xff) bp->tx_quick_cons_trip = 0xff;
bp->tx_ticks_int = (u16) coal->tx_coalesce_usecs_irq;
if (bp->tx_ticks_int > 0x3ff) bp->tx_ticks_int = 0x3ff;
bp->tx_quick_cons_trip_int = (u16) coal->tx_max_coalesced_frames_irq;
if (bp->tx_quick_cons_trip_int > 0xff) bp->tx_quick_cons_trip_int =
0xff;
bp->stats_ticks = coal->stats_block_coalesce_usecs;
if (bp->flags & BNX2_FLAG_BROKEN_STATS) {
if (bp->stats_ticks != 0 && bp->stats_ticks != USEC_PER_SEC)
bp->stats_ticks = USEC_PER_SEC;
}
if (bp->stats_ticks > BNX2_HC_STATS_TICKS_HC_STAT_TICKS)
bp->stats_ticks = BNX2_HC_STATS_TICKS_HC_STAT_TICKS;
bp->stats_ticks &= BNX2_HC_STATS_TICKS_HC_STAT_TICKS;
if (netif_running(bp->dev)) {
bnx2_netif_stop(bp, true);
bnx2_init_nic(bp, 0);
bnx2_netif_start(bp, true);
}
return 0;
}
static void
bnx2_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
{
struct bnx2 *bp = netdev_priv(dev);
ering->rx_max_pending = MAX_TOTAL_RX_DESC_CNT;
ering->rx_jumbo_max_pending = MAX_TOTAL_RX_PG_DESC_CNT;
ering->rx_pending = bp->rx_ring_size;
ering->rx_jumbo_pending = bp->rx_pg_ring_size;
ering->tx_max_pending = MAX_TX_DESC_CNT;
ering->tx_pending = bp->tx_ring_size;
}
static int
bnx2_change_ring_size(struct bnx2 *bp, u32 rx, u32 tx, bool reset_irq)
{
if (netif_running(bp->dev)) {
/* Reset will erase chipset stats; save them */
bnx2_save_stats(bp);
bnx2_netif_stop(bp, true);
bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_RESET);
if (reset_irq) {
bnx2_free_irq(bp);
bnx2_del_napi(bp);
} else {
__bnx2_free_irq(bp);
}
bnx2_free_skbs(bp);
bnx2_free_mem(bp);
}
bnx2_set_rx_ring_size(bp, rx);
bp->tx_ring_size = tx;
if (netif_running(bp->dev)) {
int rc = 0;
if (reset_irq) {
rc = bnx2_setup_int_mode(bp, disable_msi);
bnx2_init_napi(bp);
}
if (!rc)
rc = bnx2_alloc_mem(bp);
if (!rc)
rc = bnx2_request_irq(bp);
if (!rc)
rc = bnx2_init_nic(bp, 0);
if (rc) {
bnx2_napi_enable(bp);
dev_close(bp->dev);
return rc;
}
#ifdef BCM_CNIC
mutex_lock(&bp->cnic_lock);
/* Let cnic know about the new status block. */
if (bp->cnic_eth_dev.drv_state & CNIC_DRV_STATE_REGD)
bnx2_setup_cnic_irq_info(bp);
mutex_unlock(&bp->cnic_lock);
#endif
bnx2_netif_start(bp, true);
}
return 0;
}
static int
bnx2_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
{
struct bnx2 *bp = netdev_priv(dev);
int rc;
if ((ering->rx_pending > MAX_TOTAL_RX_DESC_CNT) ||
(ering->tx_pending > MAX_TX_DESC_CNT) ||
(ering->tx_pending <= MAX_SKB_FRAGS)) {
return -EINVAL;
}
rc = bnx2_change_ring_size(bp, ering->rx_pending, ering->tx_pending,
false);
return rc;
}
static void
bnx2_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
{
struct bnx2 *bp = netdev_priv(dev);
epause->autoneg = ((bp->autoneg & AUTONEG_FLOW_CTRL) != 0);
epause->rx_pause = ((bp->flow_ctrl & FLOW_CTRL_RX) != 0);
epause->tx_pause = ((bp->flow_ctrl & FLOW_CTRL_TX) != 0);
}
static int
bnx2_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
{
struct bnx2 *bp = netdev_priv(dev);
bp->req_flow_ctrl = 0;
if (epause->rx_pause)
bp->req_flow_ctrl |= FLOW_CTRL_RX;
if (epause->tx_pause)
bp->req_flow_ctrl |= FLOW_CTRL_TX;
if (epause->autoneg) {
bp->autoneg |= AUTONEG_FLOW_CTRL;
}
else {
bp->autoneg &= ~AUTONEG_FLOW_CTRL;
}
if (netif_running(dev)) {
spin_lock_bh(&bp->phy_lock);
bnx2_setup_phy(bp, bp->phy_port);
spin_unlock_bh(&bp->phy_lock);
}
return 0;
}
static struct {
char string[ETH_GSTRING_LEN];
} bnx2_stats_str_arr[] = {
{ "rx_bytes" },
{ "rx_error_bytes" },
{ "tx_bytes" },
{ "tx_error_bytes" },
{ "rx_ucast_packets" },
{ "rx_mcast_packets" },
{ "rx_bcast_packets" },
{ "tx_ucast_packets" },
{ "tx_mcast_packets" },
{ "tx_bcast_packets" },
{ "tx_mac_errors" },
{ "tx_carrier_errors" },
{ "rx_crc_errors" },
{ "rx_align_errors" },
{ "tx_single_collisions" },
{ "tx_multi_collisions" },
{ "tx_deferred" },
{ "tx_excess_collisions" },
{ "tx_late_collisions" },
{ "tx_total_collisions" },
{ "rx_fragments" },
{ "rx_jabbers" },
{ "rx_undersize_packets" },
{ "rx_oversize_packets" },
{ "rx_64_byte_packets" },
{ "rx_65_to_127_byte_packets" },
{ "rx_128_to_255_byte_packets" },
{ "rx_256_to_511_byte_packets" },
{ "rx_512_to_1023_byte_packets" },
{ "rx_1024_to_1522_byte_packets" },
{ "rx_1523_to_9022_byte_packets" },
{ "tx_64_byte_packets" },
{ "tx_65_to_127_byte_packets" },
{ "tx_128_to_255_byte_packets" },
{ "tx_256_to_511_byte_packets" },
{ "tx_512_to_1023_byte_packets" },
{ "tx_1024_to_1522_byte_packets" },
{ "tx_1523_to_9022_byte_packets" },
{ "rx_xon_frames" },
{ "rx_xoff_frames" },
{ "tx_xon_frames" },
{ "tx_xoff_frames" },
{ "rx_mac_ctrl_frames" },
{ "rx_filtered_packets" },
{ "rx_ftq_discards" },
{ "rx_discards" },
{ "rx_fw_discards" },
};
#define BNX2_NUM_STATS ARRAY_SIZE(bnx2_stats_str_arr)
#define STATS_OFFSET32(offset_name) (offsetof(struct statistics_block, offset_name) / 4)
static const unsigned long bnx2_stats_offset_arr[BNX2_NUM_STATS] = {
STATS_OFFSET32(stat_IfHCInOctets_hi),
STATS_OFFSET32(stat_IfHCInBadOctets_hi),
STATS_OFFSET32(stat_IfHCOutOctets_hi),
STATS_OFFSET32(stat_IfHCOutBadOctets_hi),
STATS_OFFSET32(stat_IfHCInUcastPkts_hi),
STATS_OFFSET32(stat_IfHCInMulticastPkts_hi),
STATS_OFFSET32(stat_IfHCInBroadcastPkts_hi),
STATS_OFFSET32(stat_IfHCOutUcastPkts_hi),
STATS_OFFSET32(stat_IfHCOutMulticastPkts_hi),
STATS_OFFSET32(stat_IfHCOutBroadcastPkts_hi),
STATS_OFFSET32(stat_emac_tx_stat_dot3statsinternalmactransmiterrors),
STATS_OFFSET32(stat_Dot3StatsCarrierSenseErrors),
STATS_OFFSET32(stat_Dot3StatsFCSErrors),
STATS_OFFSET32(stat_Dot3StatsAlignmentErrors),
STATS_OFFSET32(stat_Dot3StatsSingleCollisionFrames),
STATS_OFFSET32(stat_Dot3StatsMultipleCollisionFrames),
STATS_OFFSET32(stat_Dot3StatsDeferredTransmissions),
STATS_OFFSET32(stat_Dot3StatsExcessiveCollisions),
STATS_OFFSET32(stat_Dot3StatsLateCollisions),
STATS_OFFSET32(stat_EtherStatsCollisions),
STATS_OFFSET32(stat_EtherStatsFragments),
STATS_OFFSET32(stat_EtherStatsJabbers),
STATS_OFFSET32(stat_EtherStatsUndersizePkts),
STATS_OFFSET32(stat_EtherStatsOverrsizePkts),
STATS_OFFSET32(stat_EtherStatsPktsRx64Octets),
STATS_OFFSET32(stat_EtherStatsPktsRx65Octetsto127Octets),
STATS_OFFSET32(stat_EtherStatsPktsRx128Octetsto255Octets),
STATS_OFFSET32(stat_EtherStatsPktsRx256Octetsto511Octets),
STATS_OFFSET32(stat_EtherStatsPktsRx512Octetsto1023Octets),
STATS_OFFSET32(stat_EtherStatsPktsRx1024Octetsto1522Octets),
STATS_OFFSET32(stat_EtherStatsPktsRx1523Octetsto9022Octets),
STATS_OFFSET32(stat_EtherStatsPktsTx64Octets),
STATS_OFFSET32(stat_EtherStatsPktsTx65Octetsto127Octets),
STATS_OFFSET32(stat_EtherStatsPktsTx128Octetsto255Octets),
STATS_OFFSET32(stat_EtherStatsPktsTx256Octetsto511Octets),
STATS_OFFSET32(stat_EtherStatsPktsTx512Octetsto1023Octets),
STATS_OFFSET32(stat_EtherStatsPktsTx1024Octetsto1522Octets),
STATS_OFFSET32(stat_EtherStatsPktsTx1523Octetsto9022Octets),
STATS_OFFSET32(stat_XonPauseFramesReceived),
STATS_OFFSET32(stat_XoffPauseFramesReceived),
STATS_OFFSET32(stat_OutXonSent),
STATS_OFFSET32(stat_OutXoffSent),
STATS_OFFSET32(stat_MacControlFramesReceived),
STATS_OFFSET32(stat_IfInFramesL2FilterDiscards),
STATS_OFFSET32(stat_IfInFTQDiscards),
STATS_OFFSET32(stat_IfInMBUFDiscards),
STATS_OFFSET32(stat_FwRxDrop),
};
/* stat_IfHCInBadOctets and stat_Dot3StatsCarrierSenseErrors are
* skipped because of errata.
*/
static u8 bnx2_5706_stats_len_arr[BNX2_NUM_STATS] = {
8,0,8,8,8,8,8,8,8,8,
4,0,4,4,4,4,4,4,4,4,
4,4,4,4,4,4,4,4,4,4,
4,4,4,4,4,4,4,4,4,4,
4,4,4,4,4,4,4,
};
static u8 bnx2_5708_stats_len_arr[BNX2_NUM_STATS] = {
8,0,8,8,8,8,8,8,8,8,
4,4,4,4,4,4,4,4,4,4,
4,4,4,4,4,4,4,4,4,4,
4,4,4,4,4,4,4,4,4,4,
4,4,4,4,4,4,4,
};
#define BNX2_NUM_TESTS 6
static struct {
char string[ETH_GSTRING_LEN];
} bnx2_tests_str_arr[BNX2_NUM_TESTS] = {
{ "register_test (offline)" },
{ "memory_test (offline)" },
{ "loopback_test (offline)" },
{ "nvram_test (online)" },
{ "interrupt_test (online)" },
{ "link_test (online)" },
};
static int
bnx2_get_sset_count(struct net_device *dev, int sset)
{
switch (sset) {
case ETH_SS_TEST:
return BNX2_NUM_TESTS;
case ETH_SS_STATS:
return BNX2_NUM_STATS;
default:
return -EOPNOTSUPP;
}
}
static void
bnx2_self_test(struct net_device *dev, struct ethtool_test *etest, u64 *buf)
{
struct bnx2 *bp = netdev_priv(dev);
bnx2_set_power_state(bp, PCI_D0);
memset(buf, 0, sizeof(u64) * BNX2_NUM_TESTS);
if (etest->flags & ETH_TEST_FL_OFFLINE) {
int i;
bnx2_netif_stop(bp, true);
bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_DIAG);
bnx2_free_skbs(bp);
if (bnx2_test_registers(bp) != 0) {
buf[0] = 1;
etest->flags |= ETH_TEST_FL_FAILED;
}
if (bnx2_test_memory(bp) != 0) {
buf[1] = 1;
etest->flags |= ETH_TEST_FL_FAILED;
}
if ((buf[2] = bnx2_test_loopback(bp)) != 0)
etest->flags |= ETH_TEST_FL_FAILED;
if (!netif_running(bp->dev))
bnx2_shutdown_chip(bp);
else {
bnx2_init_nic(bp, 1);
bnx2_netif_start(bp, true);
}
/* wait for link up */
for (i = 0; i < 7; i++) {
if (bp->link_up)
break;
msleep_interruptible(1000);
}
}
if (bnx2_test_nvram(bp) != 0) {
buf[3] = 1;
etest->flags |= ETH_TEST_FL_FAILED;
}
if (bnx2_test_intr(bp) != 0) {
buf[4] = 1;
etest->flags |= ETH_TEST_FL_FAILED;
}
if (bnx2_test_link(bp) != 0) {
buf[5] = 1;
etest->flags |= ETH_TEST_FL_FAILED;
}
if (!netif_running(bp->dev))
bnx2_set_power_state(bp, PCI_D3hot);
}
static void
bnx2_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
{
switch (stringset) {
case ETH_SS_STATS:
memcpy(buf, bnx2_stats_str_arr,
sizeof(bnx2_stats_str_arr));
break;
case ETH_SS_TEST:
memcpy(buf, bnx2_tests_str_arr,
sizeof(bnx2_tests_str_arr));
break;
}
}
static void
bnx2_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *buf)
{
struct bnx2 *bp = netdev_priv(dev);
int i;
u32 *hw_stats = (u32 *) bp->stats_blk;
u32 *temp_stats = (u32 *) bp->temp_stats_blk;
u8 *stats_len_arr = NULL;
if (hw_stats == NULL) {
memset(buf, 0, sizeof(u64) * BNX2_NUM_STATS);
return;
}
if ((CHIP_ID(bp) == CHIP_ID_5706_A0) ||
(CHIP_ID(bp) == CHIP_ID_5706_A1) ||
(CHIP_ID(bp) == CHIP_ID_5706_A2) ||
(CHIP_ID(bp) == CHIP_ID_5708_A0))
stats_len_arr = bnx2_5706_stats_len_arr;
else
stats_len_arr = bnx2_5708_stats_len_arr;
for (i = 0; i < BNX2_NUM_STATS; i++) {
unsigned long offset;
if (stats_len_arr[i] == 0) {
/* skip this counter */
buf[i] = 0;
continue;
}
offset = bnx2_stats_offset_arr[i];
if (stats_len_arr[i] == 4) {
/* 4-byte counter */
buf[i] = (u64) *(hw_stats + offset) +
*(temp_stats + offset);
continue;
}
/* 8-byte counter */
buf[i] = (((u64) *(hw_stats + offset)) << 32) +
*(hw_stats + offset + 1) +
(((u64) *(temp_stats + offset)) << 32) +
*(temp_stats + offset + 1);
}
}
static int
bnx2_set_phys_id(struct net_device *dev, enum ethtool_phys_id_state state)
{
struct bnx2 *bp = netdev_priv(dev);
switch (state) {
case ETHTOOL_ID_ACTIVE:
bnx2_set_power_state(bp, PCI_D0);
bp->leds_save = BNX2_RD(bp, BNX2_MISC_CFG);
BNX2_WR(bp, BNX2_MISC_CFG, BNX2_MISC_CFG_LEDMODE_MAC);
return 1; /* cycle on/off once per second */
case ETHTOOL_ID_ON:
BNX2_WR(bp, BNX2_EMAC_LED, BNX2_EMAC_LED_OVERRIDE |
BNX2_EMAC_LED_1000MB_OVERRIDE |
BNX2_EMAC_LED_100MB_OVERRIDE |
BNX2_EMAC_LED_10MB_OVERRIDE |
BNX2_EMAC_LED_TRAFFIC_OVERRIDE |
BNX2_EMAC_LED_TRAFFIC);
break;
case ETHTOOL_ID_OFF:
BNX2_WR(bp, BNX2_EMAC_LED, BNX2_EMAC_LED_OVERRIDE);
break;
case ETHTOOL_ID_INACTIVE:
BNX2_WR(bp, BNX2_EMAC_LED, 0);
BNX2_WR(bp, BNX2_MISC_CFG, bp->leds_save);
if (!netif_running(dev))
bnx2_set_power_state(bp, PCI_D3hot);
break;
}
return 0;
}
static netdev_features_t
bnx2_fix_features(struct net_device *dev, netdev_features_t features)
{
struct bnx2 *bp = netdev_priv(dev);
if (!(bp->flags & BNX2_FLAG_CAN_KEEP_VLAN))
features |= NETIF_F_HW_VLAN_RX;
return features;
}
static int
bnx2_set_features(struct net_device *dev, netdev_features_t features)
{
struct bnx2 *bp = netdev_priv(dev);
/* TSO with VLAN tag won't work with current firmware */
if (features & NETIF_F_HW_VLAN_TX)
dev->vlan_features |= (dev->hw_features & NETIF_F_ALL_TSO);
else
dev->vlan_features &= ~NETIF_F_ALL_TSO;
if ((!!(features & NETIF_F_HW_VLAN_RX) !=
!!(bp->rx_mode & BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG)) &&
netif_running(dev)) {
bnx2_netif_stop(bp, false);
dev->features = features;
bnx2_set_rx_mode(dev);
bnx2_fw_sync(bp, BNX2_DRV_MSG_CODE_KEEP_VLAN_UPDATE, 0, 1);
bnx2_netif_start(bp, false);
return 1;
}
return 0;
}
static void bnx2_get_channels(struct net_device *dev,
struct ethtool_channels *channels)
{
struct bnx2 *bp = netdev_priv(dev);
u32 max_rx_rings = 1;
u32 max_tx_rings = 1;
if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !disable_msi) {
max_rx_rings = RX_MAX_RINGS;
max_tx_rings = TX_MAX_RINGS;
}
channels->max_rx = max_rx_rings;
channels->max_tx = max_tx_rings;
channels->max_other = 0;
channels->max_combined = 0;
channels->rx_count = bp->num_rx_rings;
channels->tx_count = bp->num_tx_rings;
channels->other_count = 0;
channels->combined_count = 0;
}
static int bnx2_set_channels(struct net_device *dev,
struct ethtool_channels *channels)
{
struct bnx2 *bp = netdev_priv(dev);
u32 max_rx_rings = 1;
u32 max_tx_rings = 1;
int rc = 0;
if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !disable_msi) {
max_rx_rings = RX_MAX_RINGS;
max_tx_rings = TX_MAX_RINGS;
}
if (channels->rx_count > max_rx_rings ||
channels->tx_count > max_tx_rings)
return -EINVAL;
bp->num_req_rx_rings = channels->rx_count;
bp->num_req_tx_rings = channels->tx_count;
if (netif_running(dev))
rc = bnx2_change_ring_size(bp, bp->rx_ring_size,
bp->tx_ring_size, true);
return rc;
}
static const struct ethtool_ops bnx2_ethtool_ops = {
.get_settings = bnx2_get_settings,
.set_settings = bnx2_set_settings,
.get_drvinfo = bnx2_get_drvinfo,
.get_regs_len = bnx2_get_regs_len,
.get_regs = bnx2_get_regs,
.get_wol = bnx2_get_wol,
.set_wol = bnx2_set_wol,
.nway_reset = bnx2_nway_reset,
.get_link = bnx2_get_link,
.get_eeprom_len = bnx2_get_eeprom_len,
.get_eeprom = bnx2_get_eeprom,
.set_eeprom = bnx2_set_eeprom,
.get_coalesce = bnx2_get_coalesce,
.set_coalesce = bnx2_set_coalesce,
.get_ringparam = bnx2_get_ringparam,
.set_ringparam = bnx2_set_ringparam,
.get_pauseparam = bnx2_get_pauseparam,
.set_pauseparam = bnx2_set_pauseparam,
.self_test = bnx2_self_test,
.get_strings = bnx2_get_strings,
.set_phys_id = bnx2_set_phys_id,
.get_ethtool_stats = bnx2_get_ethtool_stats,
.get_sset_count = bnx2_get_sset_count,
.get_channels = bnx2_get_channels,
.set_channels = bnx2_set_channels,
};
/* Called with rtnl_lock */
static int
bnx2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct mii_ioctl_data *data = if_mii(ifr);
struct bnx2 *bp = netdev_priv(dev);
int err;
switch(cmd) {
case SIOCGMIIPHY:
data->phy_id = bp->phy_addr;
/* fallthru */
case SIOCGMIIREG: {
u32 mii_regval;
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -EAGAIN;
spin_lock_bh(&bp->phy_lock);
err = bnx2_read_phy(bp, data->reg_num & 0x1f, &mii_regval);
spin_unlock_bh(&bp->phy_lock);
data->val_out = mii_regval;
return err;
}
case SIOCSMIIREG:
if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -EAGAIN;
spin_lock_bh(&bp->phy_lock);
err = bnx2_write_phy(bp, data->reg_num & 0x1f, data->val_in);
spin_unlock_bh(&bp->phy_lock);
return err;
default:
/* do nothing */
break;
}
return -EOPNOTSUPP;
}
/* Called with rtnl_lock */
static int
bnx2_change_mac_addr(struct net_device *dev, void *p)
{
struct sockaddr *addr = p;
struct bnx2 *bp = netdev_priv(dev);
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
if (netif_running(dev))
bnx2_set_mac_addr(bp, bp->dev->dev_addr, 0);
return 0;
}
/* Called with rtnl_lock */
static int
bnx2_change_mtu(struct net_device *dev, int new_mtu)
{
struct bnx2 *bp = netdev_priv(dev);
if (((new_mtu + ETH_HLEN) > MAX_ETHERNET_JUMBO_PACKET_SIZE) ||
((new_mtu + ETH_HLEN) < MIN_ETHERNET_PACKET_SIZE))
return -EINVAL;
dev->mtu = new_mtu;
return bnx2_change_ring_size(bp, bp->rx_ring_size, bp->tx_ring_size,
false);
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void
poll_bnx2(struct net_device *dev)
{
struct bnx2 *bp = netdev_priv(dev);
int i;
for (i = 0; i < bp->irq_nvecs; i++) {
struct bnx2_irq *irq = &bp->irq_tbl[i];
disable_irq(irq->vector);
irq->handler(irq->vector, &bp->bnx2_napi[i]);
enable_irq(irq->vector);
}
}
#endif
static void
bnx2_get_5709_media(struct bnx2 *bp)
{
u32 val = BNX2_RD(bp, BNX2_MISC_DUAL_MEDIA_CTRL);
u32 bond_id = val & BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID;
u32 strap;
if (bond_id == BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID_C)
return;
else if (bond_id == BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID_S) {
bp->phy_flags |= BNX2_PHY_FLAG_SERDES;
return;
}
if (val & BNX2_MISC_DUAL_MEDIA_CTRL_STRAP_OVERRIDE)
strap = (val & BNX2_MISC_DUAL_MEDIA_CTRL_PHY_CTRL) >> 21;
else
strap = (val & BNX2_MISC_DUAL_MEDIA_CTRL_PHY_CTRL_STRAP) >> 8;
if (bp->func == 0) {
switch (strap) {
case 0x4:
case 0x5:
case 0x6:
bp->phy_flags |= BNX2_PHY_FLAG_SERDES;
return;
}
} else {
switch (strap) {
case 0x1:
case 0x2:
case 0x4:
bp->phy_flags |= BNX2_PHY_FLAG_SERDES;
return;
}
}
}
static void
bnx2_get_pci_speed(struct bnx2 *bp)
{
u32 reg;
reg = BNX2_RD(bp, BNX2_PCICFG_MISC_STATUS);
if (reg & BNX2_PCICFG_MISC_STATUS_PCIX_DET) {
u32 clkreg;
bp->flags |= BNX2_FLAG_PCIX;
clkreg = BNX2_RD(bp, BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS);
clkreg &= BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET;
switch (clkreg) {
case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_133MHZ:
bp->bus_speed_mhz = 133;
break;
case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_95MHZ:
bp->bus_speed_mhz = 100;
break;
case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_66MHZ:
case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_80MHZ:
bp->bus_speed_mhz = 66;
break;
case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_48MHZ:
case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_55MHZ:
bp->bus_speed_mhz = 50;
break;
case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_LOW:
case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_32MHZ:
case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_38MHZ:
bp->bus_speed_mhz = 33;
break;
}
}
else {
if (reg & BNX2_PCICFG_MISC_STATUS_M66EN)
bp->bus_speed_mhz = 66;
else
bp->bus_speed_mhz = 33;
}
if (reg & BNX2_PCICFG_MISC_STATUS_32BIT_DET)
bp->flags |= BNX2_FLAG_PCI_32BIT;
}
static void
bnx2_read_vpd_fw_ver(struct bnx2 *bp)
{
int rc, i, j;
u8 *data;
unsigned int block_end, rosize, len;
#define BNX2_VPD_NVRAM_OFFSET 0x300
#define BNX2_VPD_LEN 128
#define BNX2_MAX_VER_SLEN 30
data = kmalloc(256, GFP_KERNEL);
if (!data)
return;
rc = bnx2_nvram_read(bp, BNX2_VPD_NVRAM_OFFSET, data + BNX2_VPD_LEN,
BNX2_VPD_LEN);
if (rc)
goto vpd_done;
for (i = 0; i < BNX2_VPD_LEN; i += 4) {
data[i] = data[i + BNX2_VPD_LEN + 3];
data[i + 1] = data[i + BNX2_VPD_LEN + 2];
data[i + 2] = data[i + BNX2_VPD_LEN + 1];
data[i + 3] = data[i + BNX2_VPD_LEN];
}
i = pci_vpd_find_tag(data, 0, BNX2_VPD_LEN, PCI_VPD_LRDT_RO_DATA);
if (i < 0)
goto vpd_done;
rosize = pci_vpd_lrdt_size(&data[i]);
i += PCI_VPD_LRDT_TAG_SIZE;
block_end = i + rosize;
if (block_end > BNX2_VPD_LEN)
goto vpd_done;
j = pci_vpd_find_info_keyword(data, i, rosize,
PCI_VPD_RO_KEYWORD_MFR_ID);
if (j < 0)
goto vpd_done;
len = pci_vpd_info_field_size(&data[j]);
j += PCI_VPD_INFO_FLD_HDR_SIZE;
if (j + len > block_end || len != 4 ||
memcmp(&data[j], "1028", 4))
goto vpd_done;
j = pci_vpd_find_info_keyword(data, i, rosize,
PCI_VPD_RO_KEYWORD_VENDOR0);
if (j < 0)
goto vpd_done;
len = pci_vpd_info_field_size(&data[j]);
j += PCI_VPD_INFO_FLD_HDR_SIZE;
if (j + len > block_end || len > BNX2_MAX_VER_SLEN)
goto vpd_done;
memcpy(bp->fw_version, &data[j], len);
bp->fw_version[len] = ' ';
vpd_done:
kfree(data);
}
static int
bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
{
struct bnx2 *bp;
int rc, i, j;
u32 reg;
u64 dma_mask, persist_dma_mask;
int err;
SET_NETDEV_DEV(dev, &pdev->dev);
bp = netdev_priv(dev);
bp->flags = 0;
bp->phy_flags = 0;
bp->temp_stats_blk =
kzalloc(sizeof(struct statistics_block), GFP_KERNEL);
if (bp->temp_stats_blk == NULL) {
rc = -ENOMEM;
goto err_out;
}
/* enable device (incl. PCI PM wakeup), and bus-mastering */
rc = pci_enable_device(pdev);
if (rc) {
dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
goto err_out;
}
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
dev_err(&pdev->dev,
"Cannot find PCI device base address, aborting\n");
rc = -ENODEV;
goto err_out_disable;
}
rc = pci_request_regions(pdev, DRV_MODULE_NAME);
if (rc) {
dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
goto err_out_disable;
}
pci_set_master(pdev);
bp->pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
if (bp->pm_cap == 0) {
dev_err(&pdev->dev,
"Cannot find power management capability, aborting\n");
rc = -EIO;
goto err_out_release;
}
bp->dev = dev;
bp->pdev = pdev;
spin_lock_init(&bp->phy_lock);
spin_lock_init(&bp->indirect_lock);
#ifdef BCM_CNIC
mutex_init(&bp->cnic_lock);
#endif
INIT_WORK(&bp->reset_task, bnx2_reset_task);
bp->regview = pci_iomap(pdev, 0, MB_GET_CID_ADDR(TX_TSS_CID +
TX_MAX_TSS_RINGS + 1));
if (!bp->regview) {
dev_err(&pdev->dev, "Cannot map register space, aborting\n");
rc = -ENOMEM;
goto err_out_release;
}
bnx2_set_power_state(bp, PCI_D0);
/* Configure byte swap and enable write to the reg_window registers.
* Rely on CPU to do target byte swapping on big endian systems
* The chip's target access swapping will not swap all accesses
*/
BNX2_WR(bp, BNX2_PCICFG_MISC_CONFIG,
BNX2_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |
BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP);
bp->chip_id = BNX2_RD(bp, BNX2_MISC_ID);
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
if (!pci_is_pcie(pdev)) {
dev_err(&pdev->dev, "Not PCIE, aborting\n");
rc = -EIO;
goto err_out_unmap;
}
bp->flags |= BNX2_FLAG_PCIE;
if (CHIP_REV(bp) == CHIP_REV_Ax)
bp->flags |= BNX2_FLAG_JUMBO_BROKEN;
/* AER (Advanced Error Reporting) hooks */
err = pci_enable_pcie_error_reporting(pdev);
if (!err)
bp->flags |= BNX2_FLAG_AER_ENABLED;
} else {
bp->pcix_cap = pci_find_capability(pdev, PCI_CAP_ID_PCIX);
if (bp->pcix_cap == 0) {
dev_err(&pdev->dev,
"Cannot find PCIX capability, aborting\n");
rc = -EIO;
goto err_out_unmap;
}
bp->flags |= BNX2_FLAG_BROKEN_STATS;
}
if (CHIP_NUM(bp) == CHIP_NUM_5709 && CHIP_REV(bp) != CHIP_REV_Ax) {
if (pci_find_capability(pdev, PCI_CAP_ID_MSIX))
bp->flags |= BNX2_FLAG_MSIX_CAP;
}
if (CHIP_ID(bp) != CHIP_ID_5706_A0 && CHIP_ID(bp) != CHIP_ID_5706_A1) {
if (pci_find_capability(pdev, PCI_CAP_ID_MSI))
bp->flags |= BNX2_FLAG_MSI_CAP;
}
/* 5708 cannot support DMA addresses > 40-bit. */
if (CHIP_NUM(bp) == CHIP_NUM_5708)
persist_dma_mask = dma_mask = DMA_BIT_MASK(40);
else
persist_dma_mask = dma_mask = DMA_BIT_MASK(64);
/* Configure DMA attributes. */
if (pci_set_dma_mask(pdev, dma_mask) == 0) {
dev->features |= NETIF_F_HIGHDMA;
rc = pci_set_consistent_dma_mask(pdev, persist_dma_mask);
if (rc) {
dev_err(&pdev->dev,
"pci_set_consistent_dma_mask failed, aborting\n");
goto err_out_unmap;
}
} else if ((rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
dev_err(&pdev->dev, "System does not support DMA, aborting\n");
goto err_out_unmap;
}
if (!(bp->flags & BNX2_FLAG_PCIE))
bnx2_get_pci_speed(bp);
/* 5706A0 may falsely detect SERR and PERR. */
if (CHIP_ID(bp) == CHIP_ID_5706_A0) {
reg = BNX2_RD(bp, PCI_COMMAND);
reg &= ~(PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
BNX2_WR(bp, PCI_COMMAND, reg);
}
else if ((CHIP_ID(bp) == CHIP_ID_5706_A1) &&
!(bp->flags & BNX2_FLAG_PCIX)) {
dev_err(&pdev->dev,
"5706 A1 can only be used in a PCIX bus, aborting\n");
goto err_out_unmap;
}
bnx2_init_nvram(bp);
reg = bnx2_reg_rd_ind(bp, BNX2_SHM_HDR_SIGNATURE);
if (bnx2_reg_rd_ind(bp, BNX2_MCP_TOE_ID) & BNX2_MCP_TOE_ID_FUNCTION_ID)
bp->func = 1;
if ((reg & BNX2_SHM_HDR_SIGNATURE_SIG_MASK) ==
BNX2_SHM_HDR_SIGNATURE_SIG) {
u32 off = bp->func << 2;
bp->shmem_base = bnx2_reg_rd_ind(bp, BNX2_SHM_HDR_ADDR_0 + off);
} else
bp->shmem_base = HOST_VIEW_SHMEM_BASE;
/* Get the permanent MAC address. First we need to make sure the
* firmware is actually running.
*/
reg = bnx2_shmem_rd(bp, BNX2_DEV_INFO_SIGNATURE);
if ((reg & BNX2_DEV_INFO_SIGNATURE_MAGIC_MASK) !=
BNX2_DEV_INFO_SIGNATURE_MAGIC) {
dev_err(&pdev->dev, "Firmware not running, aborting\n");
rc = -ENODEV;
goto err_out_unmap;
}
bnx2_read_vpd_fw_ver(bp);
j = strlen(bp->fw_version);
reg = bnx2_shmem_rd(bp, BNX2_DEV_INFO_BC_REV);
for (i = 0; i < 3 && j < 24; i++) {
u8 num, k, skip0;
if (i == 0) {
bp->fw_version[j++] = 'b';
bp->fw_version[j++] = 'c';
bp->fw_version[j++] = ' ';
}
num = (u8) (reg >> (24 - (i * 8)));
for (k = 100, skip0 = 1; k >= 1; num %= k, k /= 10) {
if (num >= k || !skip0 || k == 1) {
bp->fw_version[j++] = (num / k) + '0';
skip0 = 0;
}
}
if (i != 2)
bp->fw_version[j++] = '.';
}
reg = bnx2_shmem_rd(bp, BNX2_PORT_FEATURE);
if (reg & BNX2_PORT_FEATURE_WOL_ENABLED)
bp->wol = 1;
if (reg & BNX2_PORT_FEATURE_ASF_ENABLED) {
bp->flags |= BNX2_FLAG_ASF_ENABLE;
for (i = 0; i < 30; i++) {
reg = bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION);
if (reg & BNX2_CONDITION_MFW_RUN_MASK)
break;
msleep(10);
}
}
reg = bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION);
reg &= BNX2_CONDITION_MFW_RUN_MASK;
if (reg != BNX2_CONDITION_MFW_RUN_UNKNOWN &&
reg != BNX2_CONDITION_MFW_RUN_NONE) {
u32 addr = bnx2_shmem_rd(bp, BNX2_MFW_VER_PTR);
if (j < 32)
bp->fw_version[j++] = ' ';
for (i = 0; i < 3 && j < 28; i++) {
reg = bnx2_reg_rd_ind(bp, addr + i * 4);
reg = be32_to_cpu(reg);
memcpy(&bp->fw_version[j], &reg, 4);
j += 4;
}
}
reg = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_MAC_UPPER);
bp->mac_addr[0] = (u8) (reg >> 8);
bp->mac_addr[1] = (u8) reg;
reg = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_MAC_LOWER);
bp->mac_addr[2] = (u8) (reg >> 24);
bp->mac_addr[3] = (u8) (reg >> 16);
bp->mac_addr[4] = (u8) (reg >> 8);
bp->mac_addr[5] = (u8) reg;
bp->tx_ring_size = MAX_TX_DESC_CNT;
bnx2_set_rx_ring_size(bp, 255);
bp->tx_quick_cons_trip_int = 2;
bp->tx_quick_cons_trip = 20;
bp->tx_ticks_int = 18;
bp->tx_ticks = 80;
bp->rx_quick_cons_trip_int = 2;
bp->rx_quick_cons_trip = 12;
bp->rx_ticks_int = 18;
bp->rx_ticks = 18;
bp->stats_ticks = USEC_PER_SEC & BNX2_HC_STATS_TICKS_HC_STAT_TICKS;
bp->current_interval = BNX2_TIMER_INTERVAL;
bp->phy_addr = 1;
/* Disable WOL support if we are running on a SERDES chip. */
if (CHIP_NUM(bp) == CHIP_NUM_5709)
bnx2_get_5709_media(bp);
else if (CHIP_BOND_ID(bp) & CHIP_BOND_ID_SERDES_BIT)
bp->phy_flags |= BNX2_PHY_FLAG_SERDES;
bp->phy_port = PORT_TP;
if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {
bp->phy_port = PORT_FIBRE;
reg = bnx2_shmem_rd(bp, BNX2_SHARED_HW_CFG_CONFIG);
if (!(reg & BNX2_SHARED_HW_CFG_GIG_LINK_ON_VAUX)) {
bp->flags |= BNX2_FLAG_NO_WOL;
bp->wol = 0;
}
if (CHIP_NUM(bp) == CHIP_NUM_5706) {
/* Don't do parallel detect on this board because of
* some board problems. The link will not go down
* if we do parallel detect.
*/
if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
pdev->subsystem_device == 0x310c)
bp->phy_flags |= BNX2_PHY_FLAG_NO_PARALLEL;
} else {
bp->phy_addr = 2;
if (reg & BNX2_SHARED_HW_CFG_PHY_2_5G)
bp->phy_flags |= BNX2_PHY_FLAG_2_5G_CAPABLE;
}
} else if (CHIP_NUM(bp) == CHIP_NUM_5706 ||
CHIP_NUM(bp) == CHIP_NUM_5708)
bp->phy_flags |= BNX2_PHY_FLAG_CRC_FIX;
else if (CHIP_NUM(bp) == CHIP_NUM_5709 &&
(CHIP_REV(bp) == CHIP_REV_Ax ||
CHIP_REV(bp) == CHIP_REV_Bx))
bp->phy_flags |= BNX2_PHY_FLAG_DIS_EARLY_DAC;
bnx2_init_fw_cap(bp);
if ((CHIP_ID(bp) == CHIP_ID_5708_A0) ||
(CHIP_ID(bp) == CHIP_ID_5708_B0) ||
(CHIP_ID(bp) == CHIP_ID_5708_B1) ||
!(BNX2_RD(bp, BNX2_PCI_CONFIG_3) & BNX2_PCI_CONFIG_3_VAUX_PRESET)) {
bp->flags |= BNX2_FLAG_NO_WOL;
bp->wol = 0;
}
if (CHIP_ID(bp) == CHIP_ID_5706_A0) {
bp->tx_quick_cons_trip_int =
bp->tx_quick_cons_trip;
bp->tx_ticks_int = bp->tx_ticks;
bp->rx_quick_cons_trip_int =
bp->rx_quick_cons_trip;
bp->rx_ticks_int = bp->rx_ticks;
bp->comp_prod_trip_int = bp->comp_prod_trip;
bp->com_ticks_int = bp->com_ticks;
bp->cmd_ticks_int = bp->cmd_ticks;
}
/* Disable MSI on 5706 if AMD 8132 bridge is found.
*
* MSI is defined to be 32-bit write. The 5706 does 64-bit MSI writes
* with byte enables disabled on the unused 32-bit word. This is legal
* but causes problems on the AMD 8132 which will eventually stop
* responding after a while.
*
* AMD believes this incompatibility is unique to the 5706, and
* prefers to locally disable MSI rather than globally disabling it.
*/
if (CHIP_NUM(bp) == CHIP_NUM_5706 && disable_msi == 0) {
struct pci_dev *amd_8132 = NULL;
while ((amd_8132 = pci_get_device(PCI_VENDOR_ID_AMD,
PCI_DEVICE_ID_AMD_8132_BRIDGE,
amd_8132))) {
if (amd_8132->revision >= 0x10 &&
amd_8132->revision <= 0x13) {
disable_msi = 1;
pci_dev_put(amd_8132);
break;
}
}
}
bnx2_set_default_link(bp);
bp->req_flow_ctrl = FLOW_CTRL_RX | FLOW_CTRL_TX;
init_timer(&bp->timer);
bp->timer.expires = RUN_AT(BNX2_TIMER_INTERVAL);
bp->timer.data = (unsigned long) bp;
bp->timer.function = bnx2_timer;
#ifdef BCM_CNIC
if (bnx2_shmem_rd(bp, BNX2_ISCSI_INITIATOR) & BNX2_ISCSI_INITIATOR_EN)
bp->cnic_eth_dev.max_iscsi_conn =
(bnx2_shmem_rd(bp, BNX2_ISCSI_MAX_CONN) &
BNX2_ISCSI_MAX_CONN_MASK) >> BNX2_ISCSI_MAX_CONN_SHIFT;
#endif
pci_save_state(pdev);
return 0;
err_out_unmap:
if (bp->flags & BNX2_FLAG_AER_ENABLED) {
pci_disable_pcie_error_reporting(pdev);
bp->flags &= ~BNX2_FLAG_AER_ENABLED;
}
pci_iounmap(pdev, bp->regview);
bp->regview = NULL;
err_out_release:
pci_release_regions(pdev);
err_out_disable:
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
err_out:
return rc;
}
static char *
bnx2_bus_string(struct bnx2 *bp, char *str)
{
char *s = str;
if (bp->flags & BNX2_FLAG_PCIE) {
s += sprintf(s, "PCI Express");
} else {
s += sprintf(s, "PCI");
if (bp->flags & BNX2_FLAG_PCIX)
s += sprintf(s, "-X");
if (bp->flags & BNX2_FLAG_PCI_32BIT)
s += sprintf(s, " 32-bit");
else
s += sprintf(s, " 64-bit");
s += sprintf(s, " %dMHz", bp->bus_speed_mhz);
}
return str;
}
static void
bnx2_del_napi(struct bnx2 *bp)
{
int i;
for (i = 0; i < bp->irq_nvecs; i++)
netif_napi_del(&bp->bnx2_napi[i].napi);
}
static void
bnx2_init_napi(struct bnx2 *bp)
{
int i;
for (i = 0; i < bp->irq_nvecs; i++) {
struct bnx2_napi *bnapi = &bp->bnx2_napi[i];
int (*poll)(struct napi_struct *, int);
if (i == 0)
poll = bnx2_poll;
else
poll = bnx2_poll_msix;
netif_napi_add(bp->dev, &bp->bnx2_napi[i].napi, poll, 64);
bnapi->bp = bp;
}
}
static const struct net_device_ops bnx2_netdev_ops = {
.ndo_open = bnx2_open,
.ndo_start_xmit = bnx2_start_xmit,
.ndo_stop = bnx2_close,
.ndo_get_stats64 = bnx2_get_stats64,
.ndo_set_rx_mode = bnx2_set_rx_mode,
.ndo_do_ioctl = bnx2_ioctl,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = bnx2_change_mac_addr,
.ndo_change_mtu = bnx2_change_mtu,
.ndo_fix_features = bnx2_fix_features,
.ndo_set_features = bnx2_set_features,
.ndo_tx_timeout = bnx2_tx_timeout,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = poll_bnx2,
#endif
};
static int
bnx2_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
static int version_printed = 0;
struct net_device *dev;
struct bnx2 *bp;
int rc;
char str[40];
if (version_printed++ == 0)
pr_info("%s", version);
/* dev zeroed in init_etherdev */
dev = alloc_etherdev_mq(sizeof(*bp), TX_MAX_RINGS);
if (!dev)
return -ENOMEM;
rc = bnx2_init_board(pdev, dev);
if (rc < 0)
goto err_free;
dev->netdev_ops = &bnx2_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
dev->ethtool_ops = &bnx2_ethtool_ops;
bp = netdev_priv(dev);
pci_set_drvdata(pdev, dev);
memcpy(dev->dev_addr, bp->mac_addr, 6);
memcpy(dev->perm_addr, bp->mac_addr, 6);
dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |
NETIF_F_TSO | NETIF_F_TSO_ECN |
NETIF_F_RXHASH | NETIF_F_RXCSUM;
if (CHIP_NUM(bp) == CHIP_NUM_5709)
dev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
dev->vlan_features = dev->hw_features;
dev->hw_features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
dev->features |= dev->hw_features;
dev->priv_flags |= IFF_UNICAST_FLT;
if ((rc = register_netdev(dev))) {
dev_err(&pdev->dev, "Cannot register net device\n");
goto error;
}
netdev_info(dev, "%s (%c%d) %s found at mem %lx, IRQ %d, "
"node addr %pM\n", board_info[ent->driver_data].name,
((CHIP_ID(bp) & 0xf000) >> 12) + 'A',
((CHIP_ID(bp) & 0x0ff0) >> 4),
bnx2_bus_string(bp, str), (long)pci_resource_start(pdev, 0),
pdev->irq, dev->dev_addr);
return 0;
error:
pci_iounmap(pdev, bp->regview);
pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
err_free:
free_netdev(dev);
return rc;
}
static void
bnx2_remove_one(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct bnx2 *bp = netdev_priv(dev);
unregister_netdev(dev);
del_timer_sync(&bp->timer);
cancel_work_sync(&bp->reset_task);
pci_iounmap(bp->pdev, bp->regview);
kfree(bp->temp_stats_blk);
if (bp->flags & BNX2_FLAG_AER_ENABLED) {
pci_disable_pcie_error_reporting(pdev);
bp->flags &= ~BNX2_FLAG_AER_ENABLED;
}
bnx2_release_firmware(bp);
free_netdev(dev);
pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
}
static int
bnx2_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct bnx2 *bp = netdev_priv(dev);
/* PCI register 4 needs to be saved whether netif_running() or not.
* MSI address and data need to be saved if using MSI and
* netif_running().
*/
pci_save_state(pdev);
if (!netif_running(dev))
return 0;
cancel_work_sync(&bp->reset_task);
bnx2_netif_stop(bp, true);
netif_device_detach(dev);
del_timer_sync(&bp->timer);
bnx2_shutdown_chip(bp);
bnx2_free_skbs(bp);
bnx2_set_power_state(bp, pci_choose_state(pdev, state));
return 0;
}
static int
bnx2_resume(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct bnx2 *bp = netdev_priv(dev);
pci_restore_state(pdev);
if (!netif_running(dev))
return 0;
bnx2_set_power_state(bp, PCI_D0);
netif_device_attach(dev);
bnx2_init_nic(bp, 1);
bnx2_netif_start(bp, true);
return 0;
}
/**
* bnx2_io_error_detected - called when PCI error is detected
* @pdev: Pointer to PCI device
* @state: The current pci connection state
*
* This function is called after a PCI bus error affecting
* this device has been detected.
*/
static pci_ers_result_t bnx2_io_error_detected(struct pci_dev *pdev,
pci_channel_state_t state)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct bnx2 *bp = netdev_priv(dev);
rtnl_lock();
netif_device_detach(dev);
if (state == pci_channel_io_perm_failure) {
rtnl_unlock();
return PCI_ERS_RESULT_DISCONNECT;
}
if (netif_running(dev)) {
bnx2_netif_stop(bp, true);
del_timer_sync(&bp->timer);
bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET);
}
pci_disable_device(pdev);
rtnl_unlock();
/* Request a slot slot reset. */
return PCI_ERS_RESULT_NEED_RESET;
}
/**
* bnx2_io_slot_reset - called after the pci bus has been reset.
* @pdev: Pointer to PCI device
*
* Restart the card from scratch, as if from a cold-boot.
*/
static pci_ers_result_t bnx2_io_slot_reset(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct bnx2 *bp = netdev_priv(dev);
pci_ers_result_t result;
int err;
rtnl_lock();
if (pci_enable_device(pdev)) {
dev_err(&pdev->dev,
"Cannot re-enable PCI device after reset\n");
result = PCI_ERS_RESULT_DISCONNECT;
} else {
pci_set_master(pdev);
pci_restore_state(pdev);
pci_save_state(pdev);
if (netif_running(dev)) {
bnx2_set_power_state(bp, PCI_D0);
bnx2_init_nic(bp, 1);
}
result = PCI_ERS_RESULT_RECOVERED;
}
rtnl_unlock();
if (!(bp->flags & BNX2_FLAG_AER_ENABLED))
return result;
err = pci_cleanup_aer_uncorrect_error_status(pdev);
if (err) {
dev_err(&pdev->dev,
"pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n",
err); /* non-fatal, continue */
}
return result;
}
/**
* bnx2_io_resume - called when traffic can start flowing again.
* @pdev: Pointer to PCI device
*
* This callback is called when the error recovery driver tells us that
* its OK to resume normal operation.
*/
static void bnx2_io_resume(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct bnx2 *bp = netdev_priv(dev);
rtnl_lock();
if (netif_running(dev))
bnx2_netif_start(bp, true);
netif_device_attach(dev);
rtnl_unlock();
}
static const struct pci_error_handlers bnx2_err_handler = {
.error_detected = bnx2_io_error_detected,
.slot_reset = bnx2_io_slot_reset,
.resume = bnx2_io_resume,
};
static struct pci_driver bnx2_pci_driver = {
.name = DRV_MODULE_NAME,
.id_table = bnx2_pci_tbl,
.probe = bnx2_init_one,
.remove = bnx2_remove_one,
.suspend = bnx2_suspend,
.resume = bnx2_resume,
.err_handler = &bnx2_err_handler,
};
static int __init bnx2_init(void)
{
return pci_register_driver(&bnx2_pci_driver);
}
static void __exit bnx2_cleanup(void)
{
pci_unregister_driver(&bnx2_pci_driver);
}
module_init(bnx2_init);
module_exit(bnx2_cleanup);