diff options
| author | Sagi Grimberg <sagig@mellanox.com> | 2014-12-07 14:10:03 (GMT) |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2014-12-16 02:11:45 (GMT) |
| commit | da64bdb25b541ff261bdfc1bfba3408520cbaff0 (patch) | |
| tree | 8aa659630b4597bab5c908279607695e137722cc /drivers/infiniband/ulp | |
| parent | 7e1fd4d1e3c801a07609300e03912524b3abb5cb (diff) | |
| download | linux-da64bdb25b541ff261bdfc1bfba3408520cbaff0.tar.xz | |
IB/iser: Use more completion queues
No reason to settle with four, can use the min between device max comp
vectors and number of cores.
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/ulp')
| -rw-r--r-- | drivers/infiniband/ulp/iser/iscsi_iser.h | 4 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/iser/iser_verbs.c | 12 |
2 files changed, 12 insertions, 4 deletions
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index e34263c..4234a9c 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -326,8 +326,6 @@ struct iser_rx_desc { char pad[ISER_RX_PAD_SIZE]; } __attribute__((packed)); -#define ISER_MAX_CQ 4 - struct iser_conn; struct ib_conn; struct iscsi_iser_task; @@ -378,7 +376,7 @@ struct iser_device { struct list_head ig_list; int refcount; int comps_used; - struct iser_comp comps[ISER_MAX_CQ]; + struct iser_comp *comps; int (*iser_alloc_rdma_reg_res)(struct ib_conn *ib_conn, unsigned cmds_max); void (*iser_free_rdma_reg_res)(struct ib_conn *ib_conn); diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index ad493d2..5d69927 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -104,9 +104,14 @@ static int iser_create_device_ib_res(struct iser_device *device) return -1; } - device->comps_used = min(ISER_MAX_CQ, + device->comps_used = min_t(int, num_online_cpus(), device->ib_device->num_comp_vectors); + device->comps = kcalloc(device->comps_used, sizeof(*device->comps), + GFP_KERNEL); + if (!device->comps) + goto comps_err; + max_cqe = min(ISER_MAX_CQ_LEN, dev_attr->max_cqe); iser_info("using %d CQs, device %s supports %d vectors max_cqe %d\n", @@ -165,6 +170,8 @@ cq_err: } ib_dealloc_pd(device->pd); pd_err: + kfree(device->comps); +comps_err: iser_err("failed to allocate an IB resource\n"); return -1; } @@ -190,6 +197,9 @@ static void iser_free_device_ib_res(struct iser_device *device) (void)ib_dereg_mr(device->mr); (void)ib_dealloc_pd(device->pd); + kfree(device->comps); + device->comps = NULL; + device->mr = NULL; device->pd = NULL; } |