RDMA/nes: Stop spurious MAC interrupts

Mask off MAC interrupts on netdev_stop to prevent spurious MAC interrupts
on unload/reload of iw_nes.

Signed-off-by: Sweta Bhatt <sweta.bhatt@einfochips.com>
Signed-off-by: Chien Tung <ctung@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index 852546b..639d0fc 100644 (file)
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -272,14 +272,18 @@ static int nes_netdev_stop(struct net_device *netdev)
                        break;
        }
 
-       if (first_nesvnic->netdev_open == 0)
+       if ((first_nesvnic->netdev_open == 1) && (first_nesvnic != nesvnic)  &&
+               (PCI_FUNC(first_nesvnic->nesdev->pcidev->devfn) !=
+               PCI_FUNC(nesvnic->nesdev->pcidev->devfn))) {
+                       nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK+
+                               (0x200*nesdev->mac_index), 0xffffffff);
+                       nes_write_indexed(first_nesvnic->nesdev,
+                               NES_IDX_MAC_INT_MASK+
+                               (0x200*first_nesvnic->nesdev->mac_index),
+                       ~(NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT |
+                       NES_MAC_INT_TX_UNDERFLOW | NES_MAC_INT_TX_ERROR));
+       } else {
                nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK+(0x200*nesdev->mac_index), 0xffffffff);
-       else if ((first_nesvnic != nesvnic) &&
-                (PCI_FUNC(first_nesvnic->nesdev->pcidev->devfn) != PCI_FUNC(nesvnic->nesdev->pcidev->devfn))) {
-               nes_write_indexed(nesdev, NES_IDX_MAC_INT_MASK + (0x200 * nesdev->mac_index), 0xffffffff);
-               nes_write_indexed(first_nesvnic->nesdev, NES_IDX_MAC_INT_MASK + (0x200 * first_nesvnic->nesdev->mac_index),
-                               ~(NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT |
-                               NES_MAC_INT_TX_UNDERFLOW | NES_MAC_INT_TX_ERROR));
        }
 
        nic_active_mask = ~((u32)(1 << nesvnic->nic_index));