| Message ID | 1400427160-11314-2-git-send-email-sagig@mellanox.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Headers | show |
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index ae788d2..410d3a0 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -2263,7 +2263,10 @@ static int set_sig_umr_wr(struct ib_send_wr *wr, struct mlx5_ib_qp *qp, /* length of the protected region, data + protection */ region_len = wr->sg_list->length; - if (wr->wr.sig_handover.prot) + if (wr->wr.sig_handover.prot && + (wr->wr.sig_handover.prot->lkey != wr->sg_list->lkey || + wr->wr.sig_handover.prot->addr != wr->sg_list->addr || + wr->wr.sig_handover.prot->length != wr->sg_list->length)) region_len += wr->wr.sig_handover.prot->length; /**
When the data and protection are interleaved in the memory domain, no need to expand the mkey total length. At the moment no Linux user works (iSER initiator & target) in interleaved mode. This may change in the future as for SCSI pass-through devices there is no real point in target performing de-interleaving and re-interleaving of the protection data in the PT stage. Regardless, signature verbs support this mode. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> --- drivers/infiniband/hw/mlx5/qp.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-)