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IB/mlx4: Factor out setting WQE data segment entries

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Factor code to set data segment entries out of mlx4_ib_post_send()
into set_data_seg().  This cleans up the code and lets the compiler do
a better job -- on x86_64:

add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-16 (-16)
function                                     old     new   delta
mlx4_ib_post_send                           1598    1582     -16

Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Roland Dreier 2007-07-18 11:46:27 -07:00
parent 80885456e8
commit d420d9e32f
1 changed files with 9 additions and 6 deletions
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15
drivers/infiniband/hw/mlx4/qp.c
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@ -1183,6 +1183,14 @@ static int mlx4_wq_overflow(struct mlx4_ib_wq *wq, int nreq, struct ib_cq *ib_cq
return cur + nreq >= wq->max_post; return cur + nreq >= wq->max_post;
} }
static void set_data_seg(struct mlx4_wqe_data_seg *dseg,
struct ib_sge *sg)
{
dseg->byte_count = cpu_to_be32(sg->length);
dseg->lkey = cpu_to_be32(sg->lkey);
dseg->addr = cpu_to_be64(sg->addr);
}
int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
struct ib_send_wr **bad_wr) struct ib_send_wr **bad_wr)
{ {
@ -1313,12 +1321,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
} }
for (i = 0; i < wr->num_sge; ++i) { for (i = 0; i < wr->num_sge; ++i) {
((struct mlx4_wqe_data_seg *) wqe)->byte_count = set_data_seg(wqe, wr->sg_list + i);
cpu_to_be32(wr->sg_list[i].length);
((struct mlx4_wqe_data_seg *) wqe)->lkey =
cpu_to_be32(wr->sg_list[i].lkey);
((struct mlx4_wqe_data_seg *) wqe)->addr =
cpu_to_be64(wr->sg_list[i].addr);
wqe += sizeof (struct mlx4_wqe_data_seg); wqe += sizeof (struct mlx4_wqe_data_seg);
size += sizeof (struct mlx4_wqe_data_seg) / 16; size += sizeof (struct mlx4_wqe_data_seg) / 16;