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authorMitesh Ahuja <mitesh.ahuja@emulex.com>2014-12-18 11:43:05 +0300
committerRoland Dreier <roland@purestorage.com>2015-02-18 19:31:04 +0300
commitb4dbe8d52d08e5ed60c9d01efbcd7b8694cf4b9f (patch)
tree0b76375dc4c59382a3b2126304f93bc24efe50d7 /drivers/infiniband/hw/ocrdma/ocrdma_main.c
parenta601dc77f8bf71818d679cbd97e953becb2a085e (diff)
downloadlinux-b4dbe8d52d08e5ed60c9d01efbcd7b8694cf4b9f.tar.xz
RDMA/ocrdma: Add support for interrupt moderation
Add support for interrupt moderation for ocrdma device. Thresholds for high interrupt rates are static values derived based on experimental results. Signed-off-by: Mitesh Ahuja <mitesh.ahuja@emulex.com> Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/ocrdma/ocrdma_main.c')
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_main.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
index 0083360d918e..7a2b59aca004 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -493,6 +493,9 @@ static struct ocrdma_dev *ocrdma_add(struct be_dev_info *dev_info)
spin_unlock(&ocrdma_devlist_lock);
/* Init stats */
ocrdma_add_port_stats(dev);
+ /* Interrupt Moderation */
+ INIT_DELAYED_WORK(&dev->eqd_work, ocrdma_eqd_set_task);
+ schedule_delayed_work(&dev->eqd_work, msecs_to_jiffies(1000));
pr_info("%s %s: %s \"%s\" port %d\n",
dev_name(&dev->nic_info.pdev->dev), hca_name(dev),
@@ -530,6 +533,7 @@ static void ocrdma_remove(struct ocrdma_dev *dev)
/* first unregister with stack to stop all the active traffic
* of the registered clients.
*/
+ cancel_delayed_work_sync(&dev->eqd_work);
ocrdma_remove_sysfiles(dev);
ib_unregister_device(&dev->ibdev);