| Message ID | 20181108235959.37164-1-tatyana.e.nikolova@intel.com (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Jason Gunthorpe |
| Headers | show |
| Series | [rdma-core] providers/i40iw: Return correct value for max_send_wr and max_recv_wr | expand |
On Thu, Nov 08, 2018 at 05:59:59PM -0600, Tatyana Nikolova wrote: > From: "Sindhu, Devale" <sindhu.devale@intel.com> > > The max_send_wr and max_recv_wr attributes returned in create QP do not > account for the internally reserved quantas (minimum sized WQE) used in > sizing the WQ. Thus the values reported exceed what can actually be fit > in the WQ. > > Fix this accounting for the reserve quantas when returning > max_send_wr/max_recv_wr. > > Reported-by: Stefan Assmann <sassmann@redhat.com> > Signed-off-by: Sindhu, Devale <sindhu.devale@intel.com> > Reviewed-by: Shiraz, Saleem <shiraz.saleem@intel.com> > Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> > --- > providers/i40iw/i40iw_uverbs.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) Applied to rdma-core Thanks, Jason
diff --git a/providers/i40iw/i40iw_uverbs.c b/providers/i40iw/i40iw_uverbs.c index 9d407c76..63b7206a 100644 --- a/providers/i40iw/i40iw_uverbs.c +++ b/providers/i40iw/i40iw_uverbs.c @@ -689,8 +689,11 @@ struct ibv_qp *i40iw_ucreate_qp(struct ibv_pd *pd, struct ibv_qp_init_attr *attr info.max_rq_frag_cnt = attr->cap.max_recv_sge; info.max_inline_data = attr->cap.max_inline_data; - if (!iwvctx->dev.ops_uk.iwarp_qp_uk_init(&iwuqp->qp, &info)) + if (!iwvctx->dev.ops_uk.iwarp_qp_uk_init(&iwuqp->qp, &info)) { + attr->cap.max_send_wr = (sqdepth - I40IW_SQ_RSVD) >> sqshift; + attr->cap.max_recv_wr = (rqdepth - I40IW_RQ_RSVD) >> rqshift; return &iwuqp->ibv_qp; + } i40iw_destroy_vmapped_qp(iwuqp, info.sq); err_free_rq_wrid: