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IB/rdmavt: Add hardware driver send work request check

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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 <dennis.dalessandro@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Ira Weiny 2016-02-03 14:14:45 -08:00 committed by Doug Ledford
parent b8f881b913
commit 60c30f5725
2 changed files with 6 additions and 0 deletions
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4
drivers/infiniband/sw/rdmavt/qp.c
View file

@ -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);

2
include/rdma/rdma_vt.h
View file

@ -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);
};