UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

IB/mlx4: Factor out setting other WQE segments 

Factor code to set remote address, atomic and datagram segments out of
mlx4_ib_post_send() into small helper functions.  This doesn't change
the generated code in any significant way, and makes the source easier
on the eyes.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Roland Dreier 2007-07-18 11:47:55 -07:00
parent d420d9e32f
commit 0fbfa6a906
1 changed files with 36 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
drivers/infiniband/hw/mlx4/qp.c
View File

@ -1183,6 +1183,35 @@ static int mlx4_wq_overflow(struct mlx4_ib_wq *wq, int nreq, struct ib_cq *ib_cq
return cur + nreq >= wq->max_post;
}
static __always_inline void set_raddr_seg(struct mlx4_wqe_raddr_seg *rseg,
u64 remote_addr, u32 rkey)
{
rseg->raddr = cpu_to_be64(remote_addr);
rseg->rkey = cpu_to_be32(rkey);
rseg->reserved = 0;
}
static void set_atomic_seg(struct mlx4_wqe_atomic_seg *aseg, struct ib_send_wr *wr)
{
if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) {
aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap);
aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add);
} else {
aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add);
aseg->compare = 0;
}
}
static void set_datagram_seg(struct mlx4_wqe_datagram_seg *dseg,
struct ib_send_wr *wr)
{
memcpy(dseg->av, &to_mah(wr->wr.ud.ah)->av, sizeof (struct mlx4_av));
dseg->dqpn = cpu_to_be32(wr->wr.ud.remote_qpn);
dseg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey);
}
static void set_data_seg(struct mlx4_wqe_data_seg *dseg,
struct ib_sge *sg)
{
@ -1246,26 +1275,13 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
switch (wr->opcode) {
case IB_WR_ATOMIC_CMP_AND_SWP:
case IB_WR_ATOMIC_FETCH_AND_ADD:
((struct mlx4_wqe_raddr_seg *) wqe)->raddr =
cpu_to_be64(wr->wr.atomic.remote_addr);
((struct mlx4_wqe_raddr_seg *) wqe)->rkey =
cpu_to_be32(wr->wr.atomic.rkey);
((struct mlx4_wqe_raddr_seg *) wqe)->reserved = 0;
set_raddr_seg(wqe, wr->wr.atomic.remote_addr,
wr->wr.atomic.rkey);
wqe += sizeof (struct mlx4_wqe_raddr_seg);
if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) {
((struct mlx4_wqe_atomic_seg *) wqe)->swap_add =
cpu_to_be64(wr->wr.atomic.swap);
((struct mlx4_wqe_atomic_seg *) wqe)->compare =
cpu_to_be64(wr->wr.atomic.compare_add);
} else {
((struct mlx4_wqe_atomic_seg *) wqe)->swap_add =
cpu_to_be64(wr->wr.atomic.compare_add);
((struct mlx4_wqe_atomic_seg *) wqe)->compare = 0;
}
set_atomic_seg(wqe, wr);
wqe += sizeof (struct mlx4_wqe_atomic_seg);
size += (sizeof (struct mlx4_wqe_raddr_seg) +
sizeof (struct mlx4_wqe_atomic_seg)) / 16;
@ -1274,15 +1290,10 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
case IB_WR_RDMA_READ:
case IB_WR_RDMA_WRITE:
case IB_WR_RDMA_WRITE_WITH_IMM:
((struct mlx4_wqe_raddr_seg *) wqe)->raddr =
cpu_to_be64(wr->wr.rdma.remote_addr);
((struct mlx4_wqe_raddr_seg *) wqe)->rkey =
cpu_to_be32(wr->wr.rdma.rkey);
((struct mlx4_wqe_raddr_seg *) wqe)->reserved = 0;
set_raddr_seg(wqe, wr->wr.rdma.remote_addr,
wr->wr.rdma.rkey);
wqe += sizeof (struct mlx4_wqe_raddr_seg);
size += sizeof (struct mlx4_wqe_raddr_seg) / 16;
break;
default:
@ -1292,13 +1303,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
break;
case IB_QPT_UD:
memcpy(((struct mlx4_wqe_datagram_seg *) wqe)->av,
&to_mah(wr->wr.ud.ah)->av, sizeof (struct mlx4_av));
((struct mlx4_wqe_datagram_seg *) wqe)->dqpn =
cpu_to_be32(wr->wr.ud.remote_qpn);
((struct mlx4_wqe_datagram_seg *) wqe)->qkey =
cpu_to_be32(wr->wr.ud.remote_qkey);
set_datagram_seg(wqe, wr);
wqe += sizeof (struct mlx4_wqe_datagram_seg);
size += sizeof (struct mlx4_wqe_datagram_seg) / 16;
break;