blob: 0ba59d5aeb7f54253171f56dc711b2a3e47f0f89 [file] [log] [blame]
/* bnx2.c: Broadcom NX2 network driver.
*
* Copyright (c) 2004-2010 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/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_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 "2.0.21"
#define DRV_MODULE_RELDATE "Dec 23, 2010"
#define FW_MIPS_FILE_06 "bnx2/bnx2-mips-06-6.2.1.fw"
#define FW_RV2P_FILE_06 "bnx2/bnx2-rv2p-06-6.0.15.fw"
#define FW_MIPS_FILE_09 "bnx2/bnx2-mips-09-6.2.1.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[] __devinitdata =
"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[] __devinitdata = {
{ "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);
REG_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, offset);
val = REG_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);
REG_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, offset);
REG_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;
REG_WR(bp, BNX2_CTX_CTX_DATA, val);
REG_WR(bp, BNX2_CTX_CTX_CTRL,
offset | BNX2_CTX_CTX_CTRL_WRITE_REQ);
for (i = 0; i < 5; i++) {
val = REG_RD(bp, BNX2_CTX_CTX_CTRL);
if ((val & BNX2_CTX_CTX_CTRL_WRITE_REQ) == 0)
break;
udelay(5);
}
} else {
REG_WR(bp, BNX2_CTX_DATA_ADR, offset);
REG_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;
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_assign_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;
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 = bp->cnic_ops;
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 = bp->cnic_ops;
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 = REG_RD(bp, BNX2_EMAC_MDIO_MODE);
val1 &= ~BNX2_EMAC_MDIO_MODE_AUTO_POLL;
REG_WR(bp, BNX2_EMAC_MDIO_MODE, val1);
REG_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;
REG_WR(bp, BNX2_EMAC_MDIO_COMM, val1);
for (i = 0; i < 50; i++) {
udelay(10);
val1 = REG_RD(bp, BNX2_EMAC_MDIO_COMM);
if (!(val1 & BNX2_EMAC_MDIO_COMM_START_BUSY)) {
udelay(5);
val1 = REG_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 = REG_RD(bp, BNX2_EMAC_MDIO_MODE);
val1 |= BNX2_EMAC_MDIO_MODE_AUTO_POLL;
REG_WR(bp, BNX2_EMAC_MDIO_MODE, val1);
REG_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 = REG_RD(bp, BNX2_EMAC_MDIO_MODE);
val1 &= ~BNX2_EMAC_MDIO_MODE_AUTO_POLL;
REG_WR(bp, BNX2_EMAC_MDIO_MODE, val1);
REG_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;
REG_WR(bp, BNX2_EMAC_MDIO_COMM, val1);
for (i = 0; i < 50; i++) {
udelay(10);
val1 = REG_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 = REG_RD(bp, BNX2_EMAC_MDIO_MODE);
val1 |= BNX2_EMAC_MDIO_MODE_AUTO_POLL;
REG_WR(bp, BNX2_EMAC_MDIO_MODE, val1);
REG_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];
REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
}
REG_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];
REG_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);
REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |
BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
bnapi->last_status_idx);
}
REG_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 = (void *) (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;
REG_WR(bp, BNX2_EMAC_TX_LENGTHS, 0x2620);
if (bp->link_up && (bp->line_speed == SPEED_1000) &&
(bp->duplex == DUPLEX_HALF)) {
REG_WR(bp, BNX2_EMAC_TX_LENGTHS, 0x26ff);
}
/* Configure the EMAC mode register. */
val = REG_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;
REG_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;
REG_WR(bp, BNX2_EMAC_RX_MODE, bp->rx_mode);
/* Enable/disable tx PAUSE. */
val = REG_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;
REG_WR(bp, BNX2_EMAC_TX_MODE, val);
/* Acknowledge the interrupt. */
REG_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 = REG_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;
REG_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, addr);
REG_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;
case BNX2_LINK_STATUS_10FULL:
bp->line_speed = SPEED_10;
break;
case BNX2_LINK_STATUS_100HALF:
bp->duplex = DUPLEX_HALF;
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;
case BNX2_LINK_STATUS_1000FULL:
bp->line_speed = SPEED_1000;
break;
case BNX2_LINK_STATUS_2500HALF:
bp->duplex = DUPLEX_HALF;
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_reg = 0;
u32 new_adv1000_reg = 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;
if (bp->advertising & ADVERTISED_10baseT_Half)
new_adv_reg |= ADVERTISE_10HALF;
if (bp->advertising & ADVERTISED_10baseT_Full)
new_adv_reg |= ADVERTISE_10FULL;
if (bp->advertising & ADVERTISED_100baseT_Half)
new_adv_reg |= ADVERTISE_100HALF;
if (bp->advertising & ADVERTISED_100baseT_Full)
new_adv_reg |= ADVERTISE_100FULL;
if (bp->advertising & ADVERTISED_1000baseT_Full)
new_adv1000_reg |= ADVERTISE_1000FULL;
new_adv_reg |= ADVERTISE_CSMA;
new_adv_reg |= bnx2_phy_get_pause_adv(bp);
if ((adv1000_reg != new_adv1000_reg) ||
(adv_reg != new_adv_reg) ||
((bmcr & BMCR_ANENABLE) == 0)) {
bnx2_write_phy(bp, bp->mii_adv, new_adv_reg);
bnx2_write_phy(bp, MII_CTRL1000, new_adv1000_reg);
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)
REG_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;
REG_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 = REG_RD(bp, BNX2_EMAC_MODE);
mac_mode &= ~BNX2_EMAC_MODE_PORT;
mac_mode |= BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK;
REG_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 = REG_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;
REG_WR(bp, BNX2_EMAC_MODE, mac_mode);
bp->link_up = 1;
return 0;
}
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)) {
if (!silent)
pr_err("fw sync timeout, reset code = %x\n", msg_data);
msg_data &= ~BNX2_DRV_MSG_CODE;
msg_data |= BNX2_DRV_MSG_CODE_FW_TIMEOUT;
bnx2_shmem_wr(bp, BNX2_DRV_MB, msg_data);
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;
REG_WR(bp, BNX2_CTX_COMMAND, val);
for (i = 0; i < 10; i++) {
val = REG_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;
REG_WR(bp, BNX2_CTX_HOST_PAGE_TBL_DATA0,
(bp->ctx_blk_mapping[i] & 0xffffffff) |
BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID);
REG_WR(bp, BNX2_CTX_HOST_PAGE_TBL_DATA1,
(u64) bp->ctx_blk_mapping[i] >> 32);
REG_WR(bp, BNX2_CTX_HOST_PAGE_TBL_CTRL, i |
BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
for (j = 0; j < 10; j++) {
val = REG_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);
REG_WR(bp, BNX2_CTX_VIRT_ADDR, vcid_addr);
REG_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) {
pr_err("Failed to allocate memory in %s\n", __func__);
return -ENOMEM;
}
REG_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];
REG_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];
REG_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_skb(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index, gfp_t gfp)
{
struct sk_buff *skb;
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)];
unsigned long align;
skb = __netdev_alloc_skb(bp->dev, bp->rx_buf_size, gfp);
if (skb == NULL) {
return -ENOMEM;
}
if (unlikely((align = (unsigned long) skb->data & (BNX2_RX_ALIGN - 1))))
skb_reserve(skb, BNX2_RX_ALIGN - align);
mapping = dma_map_single(&bp->pdev->dev, skb->data, bp->rx_buf_use_size,
PCI_DMA_FROMDEVICE);
if (dma_mapping_error(&bp->pdev->dev, mapping)) {
dev_kfree_skb(skb);
return -EIO;
}
rx_buf->skb = skb;
rx_buf->desc = (struct l2_fhdr *) skb->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)
REG_WR(bp, BNX2_PCICFG_STATUS_BIT_SET_CMD, event);
else
REG_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