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authorLeon Romanovsky <leonro@nvidia.com>2021-07-23 14:39:49 +0300
committerJason Gunthorpe <jgg@nvidia.com>2021-08-03 19:44:27 +0300
commit44da3730e046a784d088157175d9418ba60661fc (patch)
treed215dc33adcd0165ab149c74d20af01427f7037a /include/rdma
parent0dc0da15ed7d1f50ec3ef0cdbb7f2975abefec1f (diff)
downloadlinux-44da3730e046a784d088157175d9418ba60661fc.tar.xz
RDMA/rdmavt: Decouple QP and SGE lists allocations
The rdmavt QP has fields that are both needed for the control and data path. Such mixed declaration caused to the very specific allocation flow with kzalloc_node and SGE list embedded into the struct rvt_qp. This patch separates QP creation to two: regular memory allocation for the control path and specific code for the SGE list, while the access to the later is performed through derefenced pointer. Such pointer and its context are expected to be in the cache, so performance difference is expected to be negligible, if any exists. Link: https://lore.kernel.org/r/f66c1e20ccefba0db3c69c58ca9c897f062b4d1c.1627040189.git.leonro@nvidia.com Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/rdmavt_qp.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h
index 8275954f5ce6..2e58d5e6ac0e 100644
--- a/include/rdma/rdmavt_qp.h
+++ b/include/rdma/rdmavt_qp.h
@@ -444,7 +444,7 @@ struct rvt_qp {
/*
* This sge list MUST be last. Do not add anything below here.
*/
- struct rvt_sge r_sg_list[] /* verified SGEs */
+ struct rvt_sge *r_sg_list /* verified SGEs */
____cacheline_aligned_in_smp;
};