diff options
| author |   Bart Van Assche <bvanassche@acm.org> | 2020-05-25 10:22:12 -0700 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2020-05-29 14:49:55 -0300 |
| commit | e0cca8b456e2319804c9187f237268b14c50d323 (patch) | |
| tree | 0a2c3d725be607acff405a39427868aaa7337bfc /drivers/infiniband/ulp | |
| parent | RDMA/srpt: Reduce max_recv_sge to 1 (diff) | |
| download | linux-dev-e0cca8b456e2319804c9187f237268b14c50d323.tar.xz linux-dev-e0cca8b456e2319804c9187f237268b14c50d323.zip | |
RDMA/srpt: Increase max_send_sge
The ib_srpt driver limits max_send_sge to 16. Since that is a workaround
for an mlx4 bug that has been fixed, increase max_send_sge. See also
commit f95ccffc715b ("IB/mlx4: Use 4K pages for kernel QP's WQE buffer").
Link: https://lore.kernel.org/r/20200525172212.14413-5-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/ulp')
| -rw-r--r-- | drivers/infiniband/ulp/srpt/ib_srpt.c | 3 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/srpt/ib_srpt.h | 5 |
2 files changed, 1 insertions, 7 deletions
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index 84f80f35ec8a..ef7fcd3e8e15 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -1816,8 +1816,7 @@ retry: */ qp_init->cap.max_send_wr = min(sq_size / 2, attrs->max_qp_wr); qp_init->cap.max_rdma_ctxs = sq_size / 2; - qp_init->cap.max_send_sge = min(attrs->max_send_sge, - SRPT_MAX_SG_PER_WQE); + qp_init->cap.max_send_sge = attrs->max_send_sge; qp_init->cap.max_recv_sge = 1; qp_init->port_num = ch->sport->port; if (sdev->use_srq) diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.h b/drivers/infiniband/ulp/srpt/ib_srpt.h index 2e1a69840857..f31c349d07a1 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.h +++ b/drivers/infiniband/ulp/srpt/ib_srpt.h @@ -105,11 +105,6 @@ enum { SRP_CMD_ACA = 0x4, SRPT_DEF_SG_TABLESIZE = 128, - /* - * An experimentally determined value that avoids that QP creation - * fails due to "swiotlb buffer is full" on systems using the swiotlb. - */ - SRPT_MAX_SG_PER_WQE = 16, MIN_SRPT_SQ_SIZE = 16, DEF_SRPT_SQ_SIZE = 4096, |