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Commit 2dfe0e1f authored by Eilon Greenstein's avatar Eilon Greenstein Committed by David S. Miller
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bnx2x: Handling load failures 

Failures on load were not handled correctly - separate the flow to handle

different failures
Signed-off-by: default avatarEilon Greenstein <eilong@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e94d8af3
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Showing with 88 additions and 66 deletions
drivers/net/bnx2x_main.c
View file @ 2dfe0e1f
......@@ -6328,7 +6328,7 @@ static void bnx2x_set_rx_mode(struct net_device *dev);
static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
{
u32 load_code;
int i, rc;
int i, rc = 0;
#ifdef BNX2X_STOP_ON_ERROR
if (unlikely(bp->panic))
return -EPERM;
......@@ -6336,48 +6336,6 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
bp->state = BNX2X_STATE_OPENING_WAIT4_LOAD;
/* Send LOAD_REQUEST command to MCP
Returns the type of LOAD command:
if it is the first port to be initialized
common blocks should be initialized, otherwise - not
*/
if (!BP_NOMCP(bp)) {
load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ);
if (!load_code) {
BNX2X_ERR("MCP response failure, aborting\n");
return -EBUSY;
}
if (load_code == FW_MSG_CODE_DRV_LOAD_REFUSED)
return -EBUSY; /* other port in diagnostic mode */
} else {
int port = BP_PORT(bp);
DP(NETIF_MSG_IFUP, "NO MCP load counts before us %d, %d, %d\n",
load_count[0], load_count[1], load_count[2]);
load_count[0]++;
load_count[1 + port]++;
DP(NETIF_MSG_IFUP, "NO MCP new load counts %d, %d, %d\n",
load_count[0], load_count[1], load_count[2]);
if (load_count[0] == 1)
load_code = FW_MSG_CODE_DRV_LOAD_COMMON;
else if (load_count[1 + port] == 1)
load_code = FW_MSG_CODE_DRV_LOAD_PORT;
else
load_code = FW_MSG_CODE_DRV_LOAD_FUNCTION;
}
if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) ||
(load_code == FW_MSG_CODE_DRV_LOAD_PORT))
bp->port.pmf = 1;
else
bp->port.pmf = 0;
DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf);
/* if we can't use MSI-X we only need one fp,
* so try to enable MSI-X with the requested number of fp's
* and fallback to inta with one fp
*/
if (use_inta) {
bp->num_queues = 1;
......@@ -6392,7 +6350,15 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
else
bp->num_queues = 1;
if (bnx2x_enable_msix(bp)) {
DP(NETIF_MSG_IFUP,
"set number of queues to %d\n", bp->num_queues);
/* if we can't use MSI-X we only need one fp,
* so try to enable MSI-X with the requested number of fp's
* and fallback to MSI or legacy INTx with one fp
*/
rc = bnx2x_enable_msix(bp);
if (rc) {
/* failed to enable MSI-X */
bp->num_queues = 1;
if (use_multi)
......@@ -6400,8 +6366,6 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
" to enable MSI-X\n");
}
}
DP(NETIF_MSG_IFUP,
"set number of queues to %d\n", bp->num_queues);
if (bnx2x_alloc_mem(bp))
return -ENOMEM;
......@@ -6410,30 +6374,85 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
bnx2x_fp(bp, i, disable_tpa) =
((bp->flags & TPA_ENABLE_FLAG) == 0);
for_each_queue(bp, i)
netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
bnx2x_poll, 128);
#ifdef BNX2X_STOP_ON_ERROR
for_each_queue(bp, i) {
struct bnx2x_fastpath *fp = &bp->fp[i];
fp->poll_no_work = 0;
fp->poll_calls = 0;
fp->poll_max_calls = 0;
fp->poll_complete = 0;
fp->poll_exit = 0;
}
#endif
bnx2x_napi_enable(bp);
if (bp->flags & USING_MSIX_FLAG) {
rc = bnx2x_req_msix_irqs(bp);
if (rc) {
pci_disable_msix(bp->pdev);
goto load_error;
goto load_error1;
}
printk(KERN_INFO PFX "%s: using MSI-X\n", bp->dev->name);
} else {
bnx2x_ack_int(bp);
rc = bnx2x_req_irq(bp);
if (rc) {
BNX2X_ERR("IRQ request failed, aborting\n");
goto load_error;
BNX2X_ERR("IRQ request failed rc %d, aborting\n", rc);
goto load_error1;
}
}
for_each_queue(bp, i)
netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
bnx2x_poll, 128);
/* Send LOAD_REQUEST command to MCP
Returns the type of LOAD command:
if it is the first port to be initialized
common blocks should be initialized, otherwise - not
*/
if (!BP_NOMCP(bp)) {
load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ);
if (!load_code) {
BNX2X_ERR("MCP response failure, aborting\n");
rc = -EBUSY;
goto load_error2;
}
if (load_code == FW_MSG_CODE_DRV_LOAD_REFUSED) {
rc = -EBUSY; /* other port in diagnostic mode */
goto load_error2;
}
} else {
int port = BP_PORT(bp);
DP(NETIF_MSG_IFUP, "NO MCP load counts before us %d, %d, %d\n",
load_count[0], load_count[1], load_count[2]);
load_count[0]++;
load_count[1 + port]++;
DP(NETIF_MSG_IFUP, "NO MCP new load counts %d, %d, %d\n",
load_count[0], load_count[1], load_count[2]);
if (load_count[0] == 1)
load_code = FW_MSG_CODE_DRV_LOAD_COMMON;
else if (load_count[1 + port] == 1)
load_code = FW_MSG_CODE_DRV_LOAD_PORT;
else
load_code = FW_MSG_CODE_DRV_LOAD_FUNCTION;
}
if ((load_code == FW_MSG_CODE_DRV_LOAD_COMMON) ||
(load_code == FW_MSG_CODE_DRV_LOAD_PORT))
bp->port.pmf = 1;
else
bp->port.pmf = 0;
DP(NETIF_MSG_LINK, "pmf %d\n", bp->port.pmf);
/* Initialize HW */
rc = bnx2x_init_hw(bp, load_code);
if (rc) {
BNX2X_ERR("HW init failed, aborting\n");
goto load_int_disable;
goto load_error2;
}
/* Setup NIC internals and enable interrupts */
......@@ -6445,7 +6464,7 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
if (!load_code) {
BNX2X_ERR("MCP response failure, aborting\n");
rc = -EBUSY;
goto load_rings_free;
goto load_error3;
}
}
......@@ -6454,7 +6473,7 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
rc = bnx2x_setup_leading(bp);
if (rc) {
BNX2X_ERR("Setup leading failed!\n");
goto load_netif_stop;
goto load_error3;
}
if (CHIP_IS_E1H(bp))
......@@ -6467,7 +6486,7 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
for_each_nondefault_queue(bp, i) {
rc = bnx2x_setup_multi(bp, i);
if (rc)
goto load_netif_stop;
goto load_error3;
}
if (CHIP_IS_E1(bp))
......@@ -6483,18 +6502,18 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
case LOAD_NORMAL:
/* Tx queue should be only reenabled */
netif_wake_queue(bp->dev);
/* Initialize the receive filter. */
bnx2x_set_rx_mode(bp->dev);
break;
case LOAD_OPEN:
netif_start_queue(bp->dev);
/* Initialize the receive filter. */
bnx2x_set_rx_mode(bp->dev);
if (bp->flags & USING_MSIX_FLAG)
printk(KERN_INFO PFX "%s: using MSI-X\n",
bp->dev->name);
break;
case LOAD_DIAG:
/* Initialize the receive filter. */
bnx2x_set_rx_mode(bp->dev);
bp->state = BNX2X_STATE_DIAG;
break;
......@@ -6512,20 +6531,23 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
return 0;
load_netif_stop:
bnx2x_napi_disable(bp);
load_rings_free:
load_error3:
bnx2x_int_disable_sync(bp, 1);
if (!BP_NOMCP(bp)) {
bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_REQ_WOL_MCP);
bnx2x_fw_command(bp, DRV_MSG_CODE_UNLOAD_DONE);
}
bp->port.pmf = 0;
/* Free SKBs, SGEs, TPA pool and driver internals */
bnx2x_free_skbs(bp);
for_each_queue(bp, i)
bnx2x_free_rx_sge_range(bp, bp->fp + i, NUM_RX_SGE);
load_int_disable:
bnx2x_int_disable_sync(bp, 1);
load_error2:
/* Release IRQs */
bnx2x_free_irq(bp);
load_error:
load_error1:
bnx2x_napi_disable(bp);
bnx2x_free_mem(bp);
bp->port.pmf = 0;
/* TBD we really need to reset the chip
if we want to recover from this */
......
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