From 80885456e844552044c8c5f1f9bf0f6773b187ea Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 18 Jul 2007 11:30:34 -0700 Subject: [PATCH] IB/mthca: Factor out setting WQE data segment entries Factor code to set data segment entries out of the work request posting functions into inline functions mthca_set_data_seg() and mthca_set_data_seg_inval(). This makes the code more readable and also allows the compiler to do a better job -- on x86_64: add/remove: 0/0 grow/shrink: 0/6 up/down: 0/-69 (-69) function old new delta mthca_arbel_post_srq_recv 373 369 -4 mthca_arbel_post_receive 570 562 -8 mthca_tavor_post_srq_recv 520 508 -12 mthca_tavor_post_send 1344 1330 -14 mthca_arbel_post_send 1481 1467 -14 mthca_tavor_post_receive 792 775 -17 Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_qp.c | 41 ++++++------------------- drivers/infiniband/hw/mthca/mthca_srq.c | 28 ++++------------- drivers/infiniband/hw/mthca/mthca_wqe.h | 15 +++++++++ 3 files changed, 30 insertions(+), 54 deletions(-) diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index 0e9ef24f663..2548250a822 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -1740,13 +1740,8 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); - wqe += sizeof (struct mthca_data_seg); + mthca_set_data_seg(wqe, wr->sg_list + i); + wqe += sizeof (struct mthca_data_seg); size += sizeof (struct mthca_data_seg) / 16; } @@ -1869,13 +1864,8 @@ int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); - wqe += sizeof (struct mthca_data_seg); + mthca_set_data_seg(wqe, wr->sg_list + i); + wqe += sizeof (struct mthca_data_seg); size += sizeof (struct mthca_data_seg) / 16; } @@ -2125,13 +2115,8 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); - wqe += sizeof (struct mthca_data_seg); + mthca_set_data_seg(wqe, wr->sg_list + i); + wqe += sizeof (struct mthca_data_seg); size += sizeof (struct mthca_data_seg) / 16; } @@ -2253,20 +2238,12 @@ int mthca_arbel_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); + mthca_set_data_seg(wqe, wr->sg_list + i); wqe += sizeof (struct mthca_data_seg); } - if (i < qp->rq.max_gs) { - ((struct mthca_data_seg *) wqe)->byte_count = 0; - ((struct mthca_data_seg *) wqe)->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); - ((struct mthca_data_seg *) wqe)->addr = 0; - } + if (i < qp->rq.max_gs) + mthca_set_data_seg_inval(wqe); qp->wrid[ind] = wr->wr_id; diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c index b8f05a52667..88d219e730a 100644 --- a/drivers/infiniband/hw/mthca/mthca_srq.c +++ b/drivers/infiniband/hw/mthca/mthca_srq.c @@ -543,20 +543,12 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); + mthca_set_data_seg(wqe, wr->sg_list + i); wqe += sizeof (struct mthca_data_seg); } - if (i < srq->max_gs) { - ((struct mthca_data_seg *) wqe)->byte_count = 0; - ((struct mthca_data_seg *) wqe)->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); - ((struct mthca_data_seg *) wqe)->addr = 0; - } + if (i < srq->max_gs) + mthca_set_data_seg_inval(wqe); ((struct mthca_next_seg *) prev_wqe)->nda_op = cpu_to_be32((ind << srq->wqe_shift) | 1); @@ -662,20 +654,12 @@ int mthca_arbel_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr, } for (i = 0; i < wr->num_sge; ++i) { - ((struct mthca_data_seg *) wqe)->byte_count = - cpu_to_be32(wr->sg_list[i].length); - ((struct mthca_data_seg *) wqe)->lkey = - cpu_to_be32(wr->sg_list[i].lkey); - ((struct mthca_data_seg *) wqe)->addr = - cpu_to_be64(wr->sg_list[i].addr); + mthca_set_data_seg(wqe, wr->sg_list + i); wqe += sizeof (struct mthca_data_seg); } - if (i < srq->max_gs) { - ((struct mthca_data_seg *) wqe)->byte_count = 0; - ((struct mthca_data_seg *) wqe)->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); - ((struct mthca_data_seg *) wqe)->addr = 0; - } + if (i < srq->max_gs) + mthca_set_data_seg_inval(wqe); srq->wrid[ind] = wr->wr_id; srq->first_free = next_ind; diff --git a/drivers/infiniband/hw/mthca/mthca_wqe.h b/drivers/infiniband/hw/mthca/mthca_wqe.h index e7d2c1e8619..f6a66fe78e4 100644 --- a/drivers/infiniband/hw/mthca/mthca_wqe.h +++ b/drivers/infiniband/hw/mthca/mthca_wqe.h @@ -113,4 +113,19 @@ struct mthca_mlx_seg { __be16 vcrc; }; +static __always_inline void mthca_set_data_seg(struct mthca_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); +} + +static __always_inline void mthca_set_data_seg_inval(struct mthca_data_seg *dseg) +{ + dseg->byte_count = 0; + dseg->lkey = cpu_to_be32(MTHCA_INVAL_LKEY); + dseg->addr = 0; +} + #endif /* MTHCA_WQE_H */ -- 2.39.2