diff options
| author |   Michal Kalderon <Michal.Kalderon@cavium.com> | 2017-09-24 12:09:44 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-09-26 11:22:03 -0700 |
| commit | 471115ab9804f45cb8e091e426c9c67fe75e41b0 (patch) | |
| tree | 4b420b0186986d45987560e417f058597c925d5a /drivers/net/ethernet/qlogic/qed/qed_rdma.c | |
| parent | qed: Add iWARP out of order support (diff) | |
| download | linux-dev-471115ab9804f45cb8e091e426c9c67fe75e41b0.tar.xz linux-dev-471115ab9804f45cb8e091e426c9c67fe75e41b0.zip | |
qed: Fix maximum number of CQs for iWARP
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: 67b40dccc45 ("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>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_rdma.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_rdma.c b/drivers/net/ethernet/qlogic/qed/qed_rdma.c index 4f46f2851780..c8c4b3940564 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_rdma.c +++ b/drivers/net/ethernet/qlogic/qed/qed_rdma.c @@ -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); |