bnx2x: Move netif_napi_add to the open call

Move netif_napi_add for all queues from the probe call to the open call, to
avoid the case that napi objects are added for queues that may eventually not
be initialized and activated. With the former behavior, the driver could crash
when netpoll was calling ndo_poll_controller.

Signed-off-by: Merav Sicron <meravs@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 463b9ec57d8077c8a1599457974ab15dc1210536..6d1a24acb77e1cb9332906759811980aa537b4e2 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -1708,9 +1708,6 @@ struct bnx2x_func_init_params {
                        continue;               \
                else
 
-#define for_each_napi_rx_queue(bp, var) \
-       for ((var) = 0; (var) < bp->num_napi_queues; (var)++)
-
 /* Skip OOO FP */
 #define for_each_tx_queue(bp, var) \
        for ((var) = 0; (var) < BNX2X_NUM_QUEUES(bp); (var)++) \

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index e879e19eb0d68926a883ee55ffcaaa194a8b513b..af20c6ee2cd9292dfa41c8693e6d8253dfe667e4 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2046,6 +2046,8 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
         */
        bnx2x_setup_tc(bp->dev, bp->max_cos);
 
+       /* Add all NAPI objects */
+       bnx2x_add_all_napi(bp);
        bnx2x_napi_enable(bp);
 
        /* set pf load just before approaching the MCP */
@@ -2408,6 +2410,8 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
 
                /* Disable HW interrupts, NAPI */
                bnx2x_netif_stop(bp, 1);
+               /* Delete all NAPI objects */
+               bnx2x_del_all_napi(bp);
 
                /* Release IRQs */
                bnx2x_free_irq(bp);

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index dfa757e742966998fb8e9ea8b99f2667b0835a43..21b553229ea4c176dfe6c53c60ddde9df3f3f977 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -792,7 +792,7 @@ static inline void bnx2x_add_all_napi(struct bnx2x *bp)
        bp->num_napi_queues = bp->num_queues;
 
        /* Add NAPI objects */
-       for_each_napi_rx_queue(bp, i)
+       for_each_rx_queue(bp, i)
                netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
                               bnx2x_poll, BNX2X_NAPI_WEIGHT);
 }
@@ -801,7 +801,7 @@ static inline void bnx2x_del_all_napi(struct bnx2x *bp)
 {
        int i;
 
-       for_each_napi_rx_queue(bp, i)
+       for_each_rx_queue(bp, i)
                netif_napi_del(&bnx2x_fp(bp, i, napi));
 }
 

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index fc4e0e3885b039f0cb7dff48edade89e211de15b..c37a68d68090e1326b6f491c9f4e28f26a78f87b 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -2888,11 +2888,9 @@ static void bnx2x_get_channels(struct net_device *dev,
  */
 static void bnx2x_change_num_queues(struct bnx2x *bp, int num_rss)
 {
-       bnx2x_del_all_napi(bp);
        bnx2x_disable_msi(bp);
        BNX2X_NUM_QUEUES(bp) = num_rss + NON_ETH_CONTEXT_USE;
        bnx2x_set_int_mode(bp);
-       bnx2x_add_all_napi(bp);
 }
 
 /**

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 02b5a343b19506a2edc60be5dd6b41d781aadb85..5b42275ed03380db27ad6c9b74cc925c2b143d71 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -8427,6 +8427,8 @@ unload_error:
 
        /* Disable HW interrupts, NAPI */
        bnx2x_netif_stop(bp, 1);
+       /* Delete all NAPI objects */
+       bnx2x_del_all_napi(bp);
 
        /* Release IRQs */
        bnx2x_free_irq(bp);
@@ -11899,9 +11901,6 @@ static int __devinit bnx2x_init_one(struct pci_dev *pdev,
         */
        bnx2x_set_int_mode(bp);
 
-       /* Add all NAPI objects */
-       bnx2x_add_all_napi(bp);
-
        rc = register_netdev(dev);
        if (rc) {
                dev_err(&pdev->dev, "Cannot register net device\n");
@@ -11976,9 +11975,6 @@ static void __devexit bnx2x_remove_one(struct pci_dev *pdev)
 
        unregister_netdev(dev);
 
-       /* Delete all NAPI objects */
-       bnx2x_del_all_napi(bp);
-
        /* Power on: we can't let PCI layer write to us while we are in D3 */
        bnx2x_set_power_state(bp, PCI_D0);
 
@@ -12025,6 +12021,8 @@ static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
        bnx2x_tx_disable(bp);
 
        bnx2x_netif_stop(bp, 0);
+       /* Delete all NAPI objects */
+       bnx2x_del_all_napi(bp);
 
        del_timer_sync(&bp->timer);