[PATCH 2/7] IB/rdmavt: Add hardware driver send work request check
From: Dennis Dalessandro <hidden>
Date: 2016-02-03 22:14:45
Subsystem:
infiniband subsystem, the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Linus Torvalds
From: Ira Weiny <redacted> Some hardware drivers requires additional checks on send WRs. Create an optional call back to allow hardware drivers to reject a send WR. Reviewed-by: Dennis Dalessandro <redacted> Signed-off-by: Ira Weiny <redacted> --- drivers/infiniband/sw/rdmavt/qp.c | 4 ++++ include/rdma/rdma_vt.h | 2 ++ 2 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c
index 8efb0f5..34c92c0 100644
--- a/drivers/infiniband/sw/rdmavt/qp.c
+++ b/drivers/infiniband/sw/rdmavt/qp.c@@ -1387,6 +1387,10 @@ static int rvt_post_one_wr(struct rvt_qp *qp, struct ib_send_wr *wr) if (next == qp->s_last) return -ENOMEM; + if (rdi->driver_f.check_send_wr && + rdi->driver_f.check_send_wr(qp, wr)) + return -EINVAL; + rkt = &rdi->lkey_table; pd = ibpd_to_rvtpd(qp->ibqp.pd); wqe = rvt_get_swqe_ptr(qp, qp->s_head);
diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h
index 1b77065..52dfa9c 100644
--- a/include/rdma/rdma_vt.h
+++ b/include/rdma/rdma_vt.h@@ -265,6 +265,8 @@ struct rvt_driver_provided { void (*modify_qp)(struct rvt_qp *qp, struct ib_qp_attr *attr, int attr_mask, struct ib_udata *udata); + int (*check_send_wr)(struct rvt_qp *qp, struct ib_send_wr *wr); + void (*notify_create_mad_agent)(struct rvt_dev_info *rdi, int port_idx); void (*notify_free_mad_agent)(struct rvt_dev_info *rdi, int port_idx); }; --
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