From 60c30f572595e46c819503b5a8c3a8e2f922de7a Mon Sep 17 00:00:00 2001 From: Ira Weiny Date: Wed, 3 Feb 2016 14:14:45 -0800 Subject: [PATCH] IB/rdmavt: Add hardware driver send work request check 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 Signed-off-by: Ira Weiny Signed-off-by: Doug Ledford --- drivers/infiniband/sw/rdmavt/qp.c | 4 ++++ include/rdma/rdma_vt.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c index 4711e14..e9e3138 100644 --- a/drivers/infiniband/sw/rdmavt/qp.c +++ b/drivers/infiniband/sw/rdmavt/qp.c @@ -1394,6 +1394,10 @@ 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); }; -- 2.7.4