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qed: Fix maximum number of CQs for iWARP

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The maximum number of CQs supported is bound to the number
of connections supported, which differs between RoCE and iWARP.

This fixes a crash that occurred in iWARP when running 1000 sessions
using perftest.

Fixes: 67b40dccc4 ("qed: Implement iWARP initialization, teardown and qp operations")

Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michal Kalderon 2017-09-24 12:09:44 +03:00 committed by David S. Miller
parent d1abfd0b4e
commit 471115ab98
1 changed files with 6 additions and 6 deletions
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12
drivers/net/ethernet/qlogic/qed/qed_rdma.c
View file

@ -209,11 +209,11 @@ static int qed_rdma_alloc(struct qed_hwfn *p_hwfn,
goto free_pd_map;
}
/* Allocate bitmap for cq's. The maximum number of CQs is bounded to
* twice the number of QPs.
/* Allocate bitmap for cq's. The maximum number of CQs is bound to
* the number of connections we support. (num_qps in iWARP or
* num_qps/2 in RoCE).
*/
rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->cq_map,
p_rdma_info->num_qps * 2, "CQ");
rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->cq_map, num_cons, "CQ");
if (rc) {
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"Failed to allocate cq bitmap, rc = %d\n", rc);
@ -222,10 +222,10 @@ static int qed_rdma_alloc(struct qed_hwfn *p_hwfn,
/* Allocate bitmap for toggle bit for cq icids
* We toggle the bit every time we create or resize cq for a given icid.
* The maximum number of CQs is bounded to twice the number of QPs.
* Size needs to equal the size of the cq bmap.
*/
rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->toggle_bits,
p_rdma_info->num_qps * 2, "Toggle");
num_cons, "Toggle");
if (rc) {
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"Failed to allocate toogle bits, rc = %d\n", rc);