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authorLi Zhijian <lizhijian@fujitsu.com>2022-12-06 16:01:59 +0300
committerJason Gunthorpe <jgg@nvidia.com>2022-12-10 02:36:02 +0300
commit70aad902ce8aeb094dd3ef14988a652f24cce7c8 (patch)
tree6c44abeac91676645eb841c2bfd9a493b1745586 /drivers/infiniband
parentea1bb00ee9a5527b032a6efebe4a879db4cb42bb (diff)
downloadlinux-70aad902ce8aeb094dd3ef14988a652f24cce7c8.tar.xz
RDMA/rxe: Implement flush completion
Per IBA SPEC, FLUSH will ack in rdma read response with 0 length. Use IB_WC_FLUSH (aka IB_UVERBS_WC_FLUSH) code to tell userspace a FLUSH completion. Link: https://lore.kernel.org/r/20221206130201.30986-9-lizhijian@fujitsu.com Reviewed-by: Zhu Yanjun <zyjzyj2000@gmail.com> Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/sw/rxe/rxe_comp.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_comp.c b/drivers/infiniband/sw/rxe/rxe_comp.c
index 1c525325e271..20737fec392b 100644
--- a/drivers/infiniband/sw/rxe/rxe_comp.c
+++ b/drivers/infiniband/sw/rxe/rxe_comp.c
@@ -105,6 +105,7 @@ static enum ib_wc_opcode wr_to_wc_opcode(enum ib_wr_opcode opcode)
case IB_WR_REG_MR: return IB_WC_REG_MR;
case IB_WR_BIND_MW: return IB_WC_BIND_MW;
case IB_WR_ATOMIC_WRITE: return IB_WC_ATOMIC_WRITE;
+ case IB_WR_FLUSH: return IB_WC_FLUSH;
default:
return 0xff;
@@ -278,7 +279,8 @@ static inline enum comp_state check_ack(struct rxe_qp *qp,
*/
case IB_OPCODE_RC_RDMA_READ_RESPONSE_MIDDLE:
if (wqe->wr.opcode != IB_WR_RDMA_READ &&
- wqe->wr.opcode != IB_WR_RDMA_READ_WITH_INV) {
+ wqe->wr.opcode != IB_WR_RDMA_READ_WITH_INV &&
+ wqe->wr.opcode != IB_WR_FLUSH) {
wqe->status = IB_WC_FATAL_ERR;
return COMPST_ERROR;
}