From: Chien Tung Date: Fri, 26 Sep 2008 20:08:10 +0000 (-0500) Subject: RDMA/nes: Stop spurious MAC interrupts X-Git-Tag: v2.6.28-rc1~727^2^10~6 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=068e80de6af2b920d2644bba3a2c060431834160;p=linux-2.6-omap-h63xx.git 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 Signed-off-by: Chien Tung Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c index 852546b67f7..639d0fcc00b 100644 --- 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));