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authorSagi Grimberg <sagig@mellanox.com>2014-07-31 13:27:46 +0300
committerRoland Dreier <roland@purestorage.com>2014-08-01 15:10:04 -0700
commit2ea32938f3a702d08c5cc2cc9cb8b11235eaad8c (patch)
treea5da1c2e39be09ba448a184de49fd900ba4f3bfd /drivers/infiniband
parent9579d603502d0f24272c4dd70451d97c8d306b54 (diff)
downloadop-kernel-dev-2ea32938f3a702d08c5cc2cc9cb8b11235eaad8c.zip
op-kernel-dev-2ea32938f3a702d08c5cc2cc9cb8b11235eaad8c.tar.gz
IB/iser: Fix responder resources advertisement
The iser initiator is the RDMA responder so it should publish to the target the max inflight rdma read requests its local HCA can handle in responder_resources (max_qp_rd_atom). The iser target should take the min of that and its local HCA max inflight oustanding rdma read requests (max_qp_init_rd_atom). We keep initiator_depth set to 1 in order to compat with old targets. Signed-off-by: Sagi Grimberg <sagig@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/ulp/iser/iser_verbs.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
index da6f3dd..6c7d8ce 100644
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -694,13 +694,15 @@ static void iser_route_handler(struct rdma_cm_id *cma_id)
struct rdma_conn_param conn_param;
int ret;
struct iser_cm_hdr req_hdr;
+ struct iser_conn *ib_conn = (struct iser_conn *)cma_id->context;
+ struct iser_device *device = ib_conn->device;
ret = iser_create_ib_conn_res((struct iser_conn *)cma_id->context);
if (ret)
goto failure;
memset(&conn_param, 0, sizeof conn_param);
- conn_param.responder_resources = 4;
+ conn_param.responder_resources = device->dev_attr.max_qp_rd_atom;
conn_param.initiator_depth = 1;
conn_param.retry_count = 7;
conn_param.rnr_retry_count = 6;
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