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authorMoni Shoua <monis@mellanox.com>2014-08-21 14:28:42 +0300
committerRoland Dreier <roland@purestorage.com>2014-09-22 09:46:52 -0700
commit4bf9715f184969dc703bde7be94919995024a6a9 (patch)
tree6845226145b3df4638f3e52834d1e57fc3d725d4 /drivers/infiniband
parentdba3ad2addcd74ec850e510f3b8a9d046cc24ef3 (diff)
downloadlinux-4bf9715f184969dc703bde7be94919995024a6a9.tar.gz
IB/mlx4: Avoid executing gid task when device is being removed
When device is being removed (e.g during VPI port link type change from ETH to IB), tasks for gid table changes should not be executed. Flush the current queue of tasks and block further tasks from entering the queue. Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/mlx4/main.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index c231112396b2..c61bcee9ee8a 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -1390,6 +1390,9 @@ static void update_gids_task(struct work_struct *work)
int err;
struct mlx4_dev *dev = gw->dev->dev;
+ if (!gw->dev->ib_active)
+ return;
+
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox)) {
pr_warn("update gid table failed %ld\n", PTR_ERR(mailbox));
@@ -1420,6 +1423,9 @@ static void reset_gids_task(struct work_struct *work)
int err;
struct mlx4_dev *dev = gw->dev->dev;
+ if (!gw->dev->ib_active)
+ return;
+
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox)) {
pr_warn("reset gid table failed\n");
@@ -2369,6 +2375,9 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
struct mlx4_ib_dev *ibdev = ibdev_ptr;
int p;
+ ibdev->ib_active = false;
+ flush_workqueue(wq);
+
mlx4_ib_close_sriov(ibdev);
mlx4_ib_mad_cleanup(ibdev);
ib_unregister_device(&ibdev->ib_dev);