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Date: Wed, 14 Jan 2009 18:43:41 +0200
From: "Eilon Greenstein" <eilong@...adcom.com>
To: "David Miller" <davem@...emloft.net>,
netdev <netdev@...r.kernel.org>
Subject: [PATCH 20/34]bnx2x: Handling load failures
Failures on load were not handled correctly - separate the flow to handle
different failures
Signed-off-by: Eilon Greenstein <eilong@...adcom.com>
---
drivers/net/bnx2x_main.c | 154 ++++++++++++++++++++++++++--------------------
1 files changed, 88 insertions(+), 66 deletions(-)
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 801a283..84c8aeb 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -6330,7 +6330,7 @@ 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;
@@ -6338,48 +6338,6 @@ 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;
@@ -6394,7 +6352,15 @@ 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)
@@ -6402,8 +6368,6 @@ 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;
@@ -6412,30 +6376,85 @@ 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 */
@@ -6447,7 +6466,7 @@ 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;
}
}
@@ -6456,7 +6475,7 @@ 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))
@@ -6469,7 +6488,7 @@ 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))
@@ -6485,18 +6504,18 @@ 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;
@@ -6514,20 +6533,23 @@ 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 */
--
1.5.4.3
--
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