mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-21 16:29:59 +00:00
Code Issues Releases Wiki Activity

IB/rdmavt: Use new driver specific post send table

Browse source 
Change rvt_post_one_wr to use the new table mechanism for
post send.

Validate that each low level driver specifies the table.

Reviewed-by: Jianxin Xiong <jianxin.xiong@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Mike Marciniszyn 2016-07-01 16:02:24 -07:00 committed by Doug Ledford
parent 9ec4faa391
commit 2821c509fc
2 changed files with 10 additions and 39 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

46
drivers/infiniband/sw/rdmavt/qp.c
View file

@ -1535,6 +1535,7 @@ static int rvt_post_one_wr(struct rvt_qp *qp,
struct rvt_dev_info *rdi = ib_to_rvt(qp->ibqp.device);
u8 log_pmtu;
int ret;
size_t cplen;
BUILD_BUG_ON(IB_QPT_MAX >= (sizeof(u32) * BITS_PER_BYTE));
@ -1542,32 +1543,11 @@ static int rvt_post_one_wr(struct rvt_qp *qp,
if (unlikely(wr->num_sge > qp->s_max_sge))
return -EINVAL;
/*
* Don't allow RDMA reads or atomic operations on UC or
* undefined operations.
* Make sure buffer is large enough to hold the result for atomics.
*/
if (qp->ibqp.qp_type == IB_QPT_UC) {
if ((unsigned)wr->opcode >= IB_WR_RDMA_READ)
return -EINVAL;
} else if (qp->ibqp.qp_type != IB_QPT_RC) {
/* Check IB_QPT_SMI, IB_QPT_GSI, IB_QPT_UD opcode */
if (wr->opcode != IB_WR_SEND &&
wr->opcode != IB_WR_SEND_WITH_IMM)
return -EINVAL;
/* Check UD destination address PD */
if (qp->ibqp.pd != ud_wr(wr)->ah->pd)
return -EINVAL;
} else if ((unsigned)wr->opcode > IB_WR_ATOMIC_FETCH_AND_ADD) {
return -EINVAL;
} else if (wr->opcode >= IB_WR_ATOMIC_CMP_AND_SWP &&
(wr->num_sge == 0 ||
wr->sg_list[0].length < sizeof(u64) ||
wr->sg_list[0].addr & (sizeof(u64) - 1))) {
return -EINVAL;
} else if (wr->opcode >= IB_WR_RDMA_READ && !qp->s_max_rd_atomic) {
return -EINVAL;
}
ret = rvt_qp_valid_operation(qp, rdi->post_parms, wr);
if (ret < 0)
return ret;
cplen = ret;
/* check for avail */
if (unlikely(!qp->s_avail)) {
qp->s_avail = qp_get_savail(qp);
@ -1588,18 +1568,8 @@ static int rvt_post_one_wr(struct rvt_qp *qp,
pd = ibpd_to_rvtpd(qp->ibqp.pd);
wqe = rvt_get_swqe_ptr(qp, qp->s_head);
if (qp->ibqp.qp_type != IB_QPT_UC &&
qp->ibqp.qp_type != IB_QPT_RC)
memcpy(&wqe->ud_wr, ud_wr(wr), sizeof(wqe->ud_wr));
else if (wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM ||
wr->opcode == IB_WR_RDMA_WRITE ||
wr->opcode == IB_WR_RDMA_READ)
memcpy(&wqe->rdma_wr, rdma_wr(wr), sizeof(wqe->rdma_wr));
else if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP ||
wr->opcode == IB_WR_ATOMIC_FETCH_AND_ADD)
memcpy(&wqe->atomic_wr, atomic_wr(wr), sizeof(wqe->atomic_wr));
else
memcpy(&wqe->wr, wr, sizeof(wqe->wr));
/* cplen has length from above */
memcpy(&wqe->wr, wr, cplen);
wqe->length = 0;
j = 0;

3
drivers/infiniband/sw/rdmavt/vt.c
View file

@ -528,7 +528,8 @@ static noinline int check_support(struct rvt_dev_info *rdi, int verb)
post_send),
rvt_post_send))
if (!rdi->driver_f.schedule_send ||
!rdi->driver_f.do_send)
!rdi->driver_f.do_send ||
!rdi->post_parms)
return -EINVAL;
break;