path: root/net/9p/trans_rdma.c
diff options
authorChuck Lever <chuck.lever@oracle.com>2019-07-29 13:22:09 -0400
committerDoug Ledford <dledford@redhat.com>2019-08-05 11:50:32 -0400
commit20cf4e026730104892fa1268de0371a631cee294 (patch)
tree08a7e60c303ff468d50a33d52e2bc98eab9b1b30 /net/9p/trans_rdma.c
parentmlx5: Fix formats with line continuation whitespace (diff)
rdma: Enable ib_alloc_cq to spread work over a device's comp_vectors
Send and Receive completion is handled on a single CPU selected at the time each Completion Queue is allocated. Typically this is when an initiator instantiates an RDMA transport, or when a target accepts an RDMA connection. Some ULPs cannot open a connection per CPU to spread completion workload across available CPUs and MSI vectors. For such ULPs, provide an API that allows the RDMA core to select a completion vector based on the device's complement of available comp_vecs. ULPs that invoke ib_alloc_cq() with only comp_vector 0 are converted to use the new API so that their completion workloads interfere less with each other. Suggested-by: HÃ¥kon Bugge <haakon.bugge@oracle.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Cc: <linux-cifs@vger.kernel.org> Cc: <v9fs-developer@lists.sourceforge.net> Link: https://lore.kernel.org/r/20190729171923.13428.52555.stgit@manet.1015granger.net Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'net/9p/trans_rdma.c')
1 files changed, 3 insertions, 3 deletions
diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
index bac8dad5dd69..b21c3c209815 100644
--- a/net/9p/trans_rdma.c
+++ b/net/9p/trans_rdma.c
@@ -685,9 +685,9 @@ rdma_create_trans(struct p9_client *client, const char *addr, char *args)
goto error;
/* Create the Completion Queue */
- rdma->cq = ib_alloc_cq(rdma->cm_id->device, client,
- opts.sq_depth + opts.rq_depth + 1,
+ rdma->cq = ib_alloc_cq_any(rdma->cm_id->device, client,
+ opts.sq_depth + opts.rq_depth + 1,
if (IS_ERR(rdma->cq))
goto error;