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Commit 068e80de authored by Chien Tung's avatar Chien Tung Committed by Roland Dreier
Browse files

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: default avatarSweta Bhatt <sweta.bhatt@einfochips.com>
Signed-off-by: default avatarChien Tung <ctung@neteffect.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 168ac824

drivers/infiniband/hw/nes/nes_nic.c

+11 −7
Original line number Diff line number Diff line
@@ -272,14 +272,18 @@ static int nes_netdev_stop(struct net_device *netdev) 
			break;

	}



	if (first_nesvnic->netdev_open == 0)

		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),

	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);

	}



	nic_active_mask = ~((u32)(1 << nesvnic->nic_index));