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bnx2.c
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/* bnx2.c: Broadcom NX2 network driver.
*
* Copyright (c) 2004, 2005 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 ([email protected])
*/
#include "bnx2.h"
#include "bnx2_fw.h"
#define DRV_MODULE_NAME "bnx2"
#define PFX DRV_MODULE_NAME ": "
#define DRV_MODULE_VERSION "1.4.30"
#define DRV_MODULE_RELDATE "October 11, 2005"
#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 <[email protected]>");
MODULE_DESCRIPTION("Broadcom NetXtreme II BCM5706/5708 Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);
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,
} 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" },
};
static struct pci_device_id 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 },
{ 0, }
};
static struct flash_spec flash_table[] =
{
/* Slow EEPROM */
{0x00000000, 0x40830380, 0x009f0081, 0xa184a053, 0xaf000400,
1, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE,
SEEPROM_BYTE_ADDR_MASK, SEEPROM_TOTAL_SIZE,
"EEPROM - slow"},
/* Expansion entry 0001 */
{0x08000002, 0x4b808201, 0x00050081, 0x03840253, 0xaf020406,
0, 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,
0, 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,
0, 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,
0, 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,
0, 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,
0, 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,
0, 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,
1, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE,
SEEPROM_BYTE_ADDR_MASK, SEEPROM_TOTAL_SIZE,
"EEPROM - fast"},
/* Expansion entry 1001 */
{0x2a000002, 0x6b808201, 0x00050081, 0x03840253, 0xaf020406,
0, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
"Entry 1001"},
/* Expansion entry 1010 */
{0x26000001, 0x67808201, 0x00050081, 0x03840253, 0xaf020406,
0, 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,
1, 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,
0, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
"Entry 1100"},
/* Expansion entry 1101 */
{0x3b000002, 0x7b808201, 0x00050081, 0x03840253, 0xaf020406,
0, 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,
1, 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,
1, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,
BUFFERED_FLASH_BYTE_ADDR_MASK, BUFFERED_FLASH_TOTAL_SIZE*2,
"Buffered flash (256kB)"},
};
MODULE_DEVICE_TABLE(pci, bnx2_pci_tbl);
static inline u32 bnx2_tx_avail(struct bnx2 *bp)
{
u32 diff = TX_RING_IDX(bp->tx_prod) - TX_RING_IDX(bp->tx_cons);
if (diff > MAX_TX_DESC_CNT)
diff = (diff & MAX_TX_DESC_CNT) - 1;
return (bp->tx_ring_size - diff);
}
static u32
bnx2_reg_rd_ind(struct bnx2 *bp, u32 offset)
{
REG_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, offset);
return (REG_RD(bp, BNX2_PCICFG_REG_WINDOW));
}
static void
bnx2_reg_wr_ind(struct bnx2 *bp, u32 offset, u32 val)
{
REG_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, offset);
REG_WR(bp, BNX2_PCICFG_REG_WINDOW, val);
}
static void
bnx2_ctx_wr(struct bnx2 *bp, u32 cid_addr, u32 offset, u32 val)
{
offset += cid_addr;
REG_WR(bp, BNX2_CTX_DATA_ADR, offset);
REG_WR(bp, BNX2_CTX_DATA, val);
}
static int
bnx2_read_phy(struct bnx2 *bp, u32 reg, u32 *val)
{
u32 val1;
int i, ret;
if (bp->phy_flags & PHY_INT_MODE_AUTO_POLLING_FLAG) {
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 & PHY_INT_MODE_AUTO_POLLING_FLAG) {
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 & PHY_INT_MODE_AUTO_POLLING_FLAG) {
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 & PHY_INT_MODE_AUTO_POLLING_FLAG) {
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)
{
REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
BNX2_PCICFG_INT_ACK_CMD_MASK_INT);
REG_RD(bp, BNX2_PCICFG_INT_ACK_CMD);
}
static void
bnx2_enable_int(struct bnx2 *bp)
{
u32 val;
REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD,
BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | bp->last_status_idx);
val = REG_RD(bp, BNX2_HC_COMMAND);
REG_WR(bp, BNX2_HC_COMMAND, val | BNX2_HC_COMMAND_COAL_NOW);
}
static void
bnx2_disable_int_sync(struct bnx2 *bp)
{
atomic_inc(&bp->intr_sem);
bnx2_disable_int(bp);
synchronize_irq(bp->pdev->irq);
}
static void
bnx2_netif_stop(struct bnx2 *bp)
{
bnx2_disable_int_sync(bp);
if (netif_running(bp->dev)) {
netif_poll_disable(bp->dev);
netif_tx_disable(bp->dev);
bp->dev->trans_start = jiffies; /* prevent tx timeout */
}
}
static void
bnx2_netif_start(struct bnx2 *bp)
{
if (atomic_dec_and_test(&bp->intr_sem)) {
if (netif_running(bp->dev)) {
netif_wake_queue(bp->dev);
netif_poll_enable(bp->dev);
bnx2_enable_int(bp);
}
}
}
static void
bnx2_free_mem(struct bnx2 *bp)
{
if (bp->stats_blk) {
pci_free_consistent(bp->pdev, sizeof(struct statistics_block),
bp->stats_blk, bp->stats_blk_mapping);
bp->stats_blk = NULL;
}
if (bp->status_blk) {
pci_free_consistent(bp->pdev, sizeof(struct status_block),
bp->status_blk, bp->status_blk_mapping);
bp->status_blk = NULL;
}
if (bp->tx_desc_ring) {
pci_free_consistent(bp->pdev,
sizeof(struct tx_bd) * TX_DESC_CNT,
bp->tx_desc_ring, bp->tx_desc_mapping);
bp->tx_desc_ring = NULL;
}
kfree(bp->tx_buf_ring);
bp->tx_buf_ring = NULL;
if (bp->rx_desc_ring) {
pci_free_consistent(bp->pdev,
sizeof(struct rx_bd) * RX_DESC_CNT,
bp->rx_desc_ring, bp->rx_desc_mapping);
bp->rx_desc_ring = NULL;
}
kfree(bp->rx_buf_ring);
bp->rx_buf_ring = NULL;
}
static int
bnx2_alloc_mem(struct bnx2 *bp)
{
bp->tx_buf_ring = kmalloc(sizeof(struct sw_bd) * TX_DESC_CNT,
GFP_KERNEL);
if (bp->tx_buf_ring == NULL)
return -ENOMEM;
memset(bp->tx_buf_ring, 0, sizeof(struct sw_bd) * TX_DESC_CNT);
bp->tx_desc_ring = pci_alloc_consistent(bp->pdev,
sizeof(struct tx_bd) *
TX_DESC_CNT,
&bp->tx_desc_mapping);
if (bp->tx_desc_ring == NULL)
goto alloc_mem_err;
bp->rx_buf_ring = kmalloc(sizeof(struct sw_bd) * RX_DESC_CNT,
GFP_KERNEL);
if (bp->rx_buf_ring == NULL)
goto alloc_mem_err;
memset(bp->rx_buf_ring, 0, sizeof(struct sw_bd) * RX_DESC_CNT);
bp->rx_desc_ring = pci_alloc_consistent(bp->pdev,
sizeof(struct rx_bd) *
RX_DESC_CNT,
&bp->rx_desc_mapping);
if (bp->rx_desc_ring == NULL)
goto alloc_mem_err;
bp->status_blk = pci_alloc_consistent(bp->pdev,
sizeof(struct status_block),
&bp->status_blk_mapping);
if (bp->status_blk == NULL)
goto alloc_mem_err;
memset(bp->status_blk, 0, sizeof(struct status_block));
bp->stats_blk = pci_alloc_consistent(bp->pdev,
sizeof(struct statistics_block),
&bp->stats_blk_mapping);
if (bp->stats_blk == NULL)
goto alloc_mem_err;
memset(bp->stats_blk, 0, sizeof(struct statistics_block));
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->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, MII_BMSR, &bmsr);
bnx2_read_phy(bp, MII_BMSR, &bmsr);
if (!(bmsr & BMSR_ANEGCOMPLETE) ||
bp->phy_flags & PHY_PARALLEL_DETECT_FLAG)
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;
REG_WR_IND(bp, bp->shmem_base + BNX2_LINK_STATUS, fw_link_status);
}
static void
bnx2_report_link(struct bnx2 *bp)
{
if (bp->link_up) {
netif_carrier_on(bp->dev);
printk(KERN_INFO PFX "%s NIC Link is Up, ", bp->dev->name);
printk("%d Mbps ", bp->line_speed);
if (bp->duplex == DUPLEX_FULL)
printk("full duplex");
else
printk("half duplex");
if (bp->flow_ctrl) {
if (bp->flow_ctrl & FLOW_CTRL_RX) {
printk(", receive ");
if (bp->flow_ctrl & FLOW_CTRL_TX)
printk("& transmit ");
}
else {
printk(", transmit ");
}
printk("flow control ON");
}
printk("\n");
}
else {
netif_carrier_off(bp->dev);
printk(KERN_ERR PFX "%s NIC Link is Down\n", bp->dev->name);
}
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 & PHY_SERDES_FLAG) &&
(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, MII_ADVERTISE, &local_adv);
bnx2_read_phy(bp, MII_LPA, &remote_adv);
if (bp->phy_flags & PHY_SERDES_FLAG) {
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_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, 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, MII_ADVERTISE, &local_adv);
bnx2_read_phy(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, 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, MII_ADVERTISE, &local_adv);
bnx2_read_phy(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 int
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);
if (bp->link_up) {
switch (bp->line_speed) {
case SPEED_10:
if (CHIP_NUM(bp) == CHIP_NUM_5708) {
val |= BNX2_EMAC_MODE_PORT_MII_10;
break;
}
/* fall through */
case SPEED_100:
val |= BNX2_EMAC_MODE_PORT_MII;
break;
case SPEED_2500:
val |= BNX2_EMAC_MODE_25G;
/* 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);
return 0;
}
static int
bnx2_set_link(struct bnx2 *bp)
{
u32 bmsr;
u8 link_up;
if (bp->loopback == MAC_LOOPBACK) {
bp->link_up = 1;
return 0;
}
link_up = bp->link_up;
bnx2_read_phy(bp, MII_BMSR, &bmsr);
bnx2_read_phy(bp, MII_BMSR, &bmsr);
if ((bp->phy_flags & PHY_SERDES_FLAG) &&
(CHIP_NUM(bp) == CHIP_NUM_5706)) {
u32 val;
val = REG_RD(bp, BNX2_EMAC_STATUS);
if (val & BNX2_EMAC_STATUS_LINK)
bmsr |= BMSR_LSTATUS;
else
bmsr &= ~BMSR_LSTATUS;
}
if (bmsr & BMSR_LSTATUS) {
bp->link_up = 1;
if (bp->phy_flags & PHY_SERDES_FLAG) {
if (CHIP_NUM(bp) == CHIP_NUM_5706)
bnx2_5706s_linkup(bp);
else if (CHIP_NUM(bp) == CHIP_NUM_5708)
bnx2_5708s_linkup(bp);
}
else {
bnx2_copper_linkup(bp);
}
bnx2_resolve_flow_ctrl(bp);
}
else {
if ((bp->phy_flags & PHY_SERDES_FLAG) &&
(bp->autoneg & AUTONEG_SPEED)) {
u32 bmcr;
bnx2_read_phy(bp, MII_BMCR, &bmcr);
if (!(bmcr & BMCR_ANENABLE)) {
bnx2_write_phy(bp, MII_BMCR, bmcr |
BMCR_ANENABLE);
}
}
bp->phy_flags &= ~PHY_PARALLEL_DETECT_FLAG;
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, 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, MII_BMCR, ®);
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 & PHY_SERDES_FLAG) {
adv = ADVERTISE_1000XPAUSE;
}
else {
adv = ADVERTISE_PAUSE_CAP;
}
}
else if (bp->req_flow_ctrl & FLOW_CTRL_TX) {
if (bp->phy_flags & PHY_SERDES_FLAG) {
adv = ADVERTISE_1000XPSE_ASYM;
}
else {
adv = ADVERTISE_PAUSE_ASYM;
}
}
else if (bp->req_flow_ctrl & FLOW_CTRL_RX) {
if (bp->phy_flags & PHY_SERDES_FLAG) {
adv = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
}
else {
adv = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
}
}
return adv;
}
static int
bnx2_setup_serdes_phy(struct bnx2 *bp)
{
u32 adv, bmcr, up1;
u32 new_adv = 0;
if (!(bp->autoneg & AUTONEG_SPEED)) {
u32 new_bmcr;
int force_link_down = 0;
if (CHIP_NUM(bp) == CHIP_NUM_5708) {
bnx2_read_phy(bp, BCM5708S_UP1, &up1);
if (up1 & BCM5708S_UP1_2G5) {
up1 &= ~BCM5708S_UP1_2G5;
bnx2_write_phy(bp, BCM5708S_UP1, up1);
force_link_down = 1;
}
}
bnx2_read_phy(bp, MII_ADVERTISE, &adv);
adv &= ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF);
bnx2_read_phy(bp, MII_BMCR, &bmcr);
new_bmcr = bmcr & ~BMCR_ANENABLE;
new_bmcr |= BMCR_SPEED1000;
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, MII_ADVERTISE, adv &
~(ADVERTISE_1000XFULL |
ADVERTISE_1000XHALF));
bnx2_write_phy(bp, MII_BMCR, bmcr |
BMCR_ANRESTART | BMCR_ANENABLE);
bp->link_up = 0;
netif_carrier_off(bp->dev);
bnx2_write_phy(bp, MII_BMCR, new_bmcr);
}
bnx2_write_phy(bp, MII_ADVERTISE, adv);
bnx2_write_phy(bp, MII_BMCR, new_bmcr);
}
return 0;
}
if (bp->phy_flags & PHY_2_5G_CAPABLE_FLAG) {
bnx2_read_phy(bp, BCM5708S_UP1, &up1);
up1 |= BCM5708S_UP1_2G5;
bnx2_write_phy(bp, BCM5708S_UP1, up1);
}
if (bp->advertising & ADVERTISED_1000baseT_Full)
new_adv |= ADVERTISE_1000XFULL;
new_adv |= bnx2_phy_get_pause_adv(bp);
bnx2_read_phy(bp, MII_ADVERTISE, &adv);
bnx2_read_phy(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) {
int i;