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authorChristoph Hellwig <hch@lst.de>2015-10-08 09:16:33 +0100
committerChristoph Hellwig <hch@lst.de>2015-10-08 11:09:10 +0100
commite622f2f4ad2142d2a613a57fb85f8cf737935ef5 (patch)
tree19fa458bcaacf3f8b2f5e40676f748afc3df1e84 /drivers/infiniband/hw/mthca/mthca_qp.c
parentb8cab5dab15ff5c2acc3faefdde28919b0341c11 (diff)
downloadlinux-e622f2f4ad2142d2a613a57fb85f8cf737935ef5.tar.bz2
IB: split struct ib_send_wr
This patch split up struct ib_send_wr so that all non-trivial verbs use their own structure which embedds struct ib_send_wr. This dramaticly shrinks the size of a WR for most common operations: sizeof(struct ib_send_wr) (old): 96 sizeof(struct ib_send_wr): 48 sizeof(struct ib_rdma_wr): 64 sizeof(struct ib_atomic_wr): 96 sizeof(struct ib_ud_wr): 88 sizeof(struct ib_fast_reg_wr): 88 sizeof(struct ib_bind_mw_wr): 96 sizeof(struct ib_sig_handover_wr): 80 And with Sagi's pending MR rework the fast registration WR will also be down to a reasonable size: sizeof(struct ib_fastreg_wr): 64 Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> [srp, srpt] Reviewed-by: Chuck Lever <chuck.lever@oracle.com> [sunrpc] Tested-by: Haggai Eran <haggaie@mellanox.com> Tested-by: Sagi Grimberg <sagig@mellanox.com> Tested-by: Steve Wise <swise@opengridcomputing.com>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_qp.c')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_qp.c84
1 files changed, 42 insertions, 42 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index e354b2f04ad9..35fe506e2cfa 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -1476,7 +1476,7 @@ void mthca_free_qp(struct mthca_dev *dev,
/* Create UD header for an MLX send and build a data segment for it */
static int build_mlx_header(struct mthca_dev *dev, struct mthca_sqp *sqp,
- int ind, struct ib_send_wr *wr,
+ int ind, struct ib_ud_wr *wr,
struct mthca_mlx_seg *mlx,
struct mthca_data_seg *data)
{
@@ -1485,10 +1485,10 @@ static int build_mlx_header(struct mthca_dev *dev, struct mthca_sqp *sqp,
u16 pkey;
ib_ud_header_init(256, /* assume a MAD */ 1, 0, 0,
- mthca_ah_grh_present(to_mah(wr->wr.ud.ah)), 0,
+ mthca_ah_grh_present(to_mah(wr->ah)), 0,
&sqp->ud_header);
- err = mthca_read_ah(dev, to_mah(wr->wr.ud.ah), &sqp->ud_header);
+ err = mthca_read_ah(dev, to_mah(wr->ah), &sqp->ud_header);
if (err)
return err;
mlx->flags &= ~cpu_to_be32(MTHCA_NEXT_SOLICIT | 1);
@@ -1499,7 +1499,7 @@ static int build_mlx_header(struct mthca_dev *dev, struct mthca_sqp *sqp,
mlx->rlid = sqp->ud_header.lrh.destination_lid;
mlx->vcrc = 0;
- switch (wr->opcode) {
+ switch (wr->wr.opcode) {
case IB_WR_SEND:
sqp->ud_header.bth.opcode = IB_OPCODE_UD_SEND_ONLY;
sqp->ud_header.immediate_present = 0;
@@ -1507,7 +1507,7 @@ static int build_mlx_header(struct mthca_dev *dev, struct mthca_sqp *sqp,
case IB_WR_SEND_WITH_IMM:
sqp->ud_header.bth.opcode = IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE;
sqp->ud_header.immediate_present = 1;
- sqp->ud_header.immediate_data = wr->ex.imm_data;
+ sqp->ud_header.immediate_data = wr->wr.ex.imm_data;
break;
default:
return -EINVAL;
@@ -1516,18 +1516,18 @@ static int build_mlx_header(struct mthca_dev *dev, struct mthca_sqp *sqp,
sqp->ud_header.lrh.virtual_lane = !sqp->qp.ibqp.qp_num ? 15 : 0;
if (sqp->ud_header.lrh.destination_lid == IB_LID_PERMISSIVE)
sqp->ud_header.lrh.source_lid = IB_LID_PERMISSIVE;
- sqp->ud_header.bth.solicited_event = !!(wr->send_flags & IB_SEND_SOLICITED);
+ sqp->ud_header.bth.solicited_event = !!(wr->wr.send_flags & IB_SEND_SOLICITED);
if (!sqp->qp.ibqp.qp_num)
ib_get_cached_pkey(&dev->ib_dev, sqp->qp.port,
sqp->pkey_index, &pkey);
else
ib_get_cached_pkey(&dev->ib_dev, sqp->qp.port,
- wr->wr.ud.pkey_index, &pkey);
+ wr->pkey_index, &pkey);
sqp->ud_header.bth.pkey = cpu_to_be16(pkey);
- sqp->ud_header.bth.destination_qpn = cpu_to_be32(wr->wr.ud.remote_qpn);
+ sqp->ud_header.bth.destination_qpn = cpu_to_be32(wr->remote_qpn);
sqp->ud_header.bth.psn = cpu_to_be32((sqp->send_psn++) & ((1 << 24) - 1));
- sqp->ud_header.deth.qkey = cpu_to_be32(wr->wr.ud.remote_qkey & 0x80000000 ?
- sqp->qkey : wr->wr.ud.remote_qkey);
+ sqp->ud_header.deth.qkey = cpu_to_be32(wr->remote_qkey & 0x80000000 ?
+ sqp->qkey : wr->remote_qkey);
sqp->ud_header.deth.source_qpn = cpu_to_be32(sqp->qp.ibqp.qp_num);
header_size = ib_ud_header_pack(&sqp->ud_header,
@@ -1569,34 +1569,34 @@ static __always_inline void set_raddr_seg(struct mthca_raddr_seg *rseg,
}
static __always_inline void set_atomic_seg(struct mthca_atomic_seg *aseg,
- struct ib_send_wr *wr)
+ struct ib_atomic_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);
+ if (wr->wr.opcode == IB_WR_ATOMIC_CMP_AND_SWP) {
+ aseg->swap_add = cpu_to_be64(wr->swap);
+ aseg->compare = cpu_to_be64(wr->compare_add);
} else {
- aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add);
+ aseg->swap_add = cpu_to_be64(wr->compare_add);
aseg->compare = 0;
}
}
static void set_tavor_ud_seg(struct mthca_tavor_ud_seg *useg,
- struct ib_send_wr *wr)
+ struct ib_ud_wr *wr)
{
- useg->lkey = cpu_to_be32(to_mah(wr->wr.ud.ah)->key);
- useg->av_addr = cpu_to_be64(to_mah(wr->wr.ud.ah)->avdma);
- useg->dqpn = cpu_to_be32(wr->wr.ud.remote_qpn);
- useg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey);
+ useg->lkey = cpu_to_be32(to_mah(wr->ah)->key);
+ useg->av_addr = cpu_to_be64(to_mah(wr->ah)->avdma);
+ useg->dqpn = cpu_to_be32(wr->remote_qpn);
+ useg->qkey = cpu_to_be32(wr->remote_qkey);
}
static void set_arbel_ud_seg(struct mthca_arbel_ud_seg *useg,
- struct ib_send_wr *wr)
+ struct ib_ud_wr *wr)
{
- memcpy(useg->av, to_mah(wr->wr.ud.ah)->av, MTHCA_AV_SIZE);
- useg->dqpn = cpu_to_be32(wr->wr.ud.remote_qpn);
- useg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey);
+ memcpy(useg->av, to_mah(wr->ah)->av, MTHCA_AV_SIZE);
+ useg->dqpn = cpu_to_be32(wr->remote_qpn);
+ useg->qkey = cpu_to_be32(wr->remote_qkey);
}
int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
@@ -1664,11 +1664,11 @@ int mthca_tavor_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:
- set_raddr_seg(wqe, wr->wr.atomic.remote_addr,
- wr->wr.atomic.rkey);
+ set_raddr_seg(wqe, atomic_wr(wr)->remote_addr,
+ atomic_wr(wr)->rkey);
wqe += sizeof (struct mthca_raddr_seg);
- set_atomic_seg(wqe, wr);
+ set_atomic_seg(wqe, atomic_wr(wr));
wqe += sizeof (struct mthca_atomic_seg);
size += (sizeof (struct mthca_raddr_seg) +
sizeof (struct mthca_atomic_seg)) / 16;
@@ -1677,8 +1677,8 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
case IB_WR_RDMA_WRITE:
case IB_WR_RDMA_WRITE_WITH_IMM:
case IB_WR_RDMA_READ:
- set_raddr_seg(wqe, wr->wr.rdma.remote_addr,
- wr->wr.rdma.rkey);
+ set_raddr_seg(wqe, rdma_wr(wr)->remote_addr,
+ rdma_wr(wr)->rkey);
wqe += sizeof (struct mthca_raddr_seg);
size += sizeof (struct mthca_raddr_seg) / 16;
break;
@@ -1694,8 +1694,8 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
switch (wr->opcode) {
case IB_WR_RDMA_WRITE:
case IB_WR_RDMA_WRITE_WITH_IMM:
- set_raddr_seg(wqe, wr->wr.rdma.remote_addr,
- wr->wr.rdma.rkey);
+ set_raddr_seg(wqe, rdma_wr(wr)->remote_addr,
+ rdma_wr(wr)->rkey);
wqe += sizeof (struct mthca_raddr_seg);
size += sizeof (struct mthca_raddr_seg) / 16;
break;
@@ -1708,13 +1708,13 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
break;
case UD:
- set_tavor_ud_seg(wqe, wr);
+ set_tavor_ud_seg(wqe, ud_wr(wr));
wqe += sizeof (struct mthca_tavor_ud_seg);
size += sizeof (struct mthca_tavor_ud_seg) / 16;
break;
case MLX:
- err = build_mlx_header(dev, to_msqp(qp), ind, wr,
+ err = build_mlx_header(dev, to_msqp(qp), ind, ud_wr(wr),
wqe - sizeof (struct mthca_next_seg),
wqe);
if (err) {
@@ -2005,11 +2005,11 @@ int mthca_arbel_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:
- set_raddr_seg(wqe, wr->wr.atomic.remote_addr,
- wr->wr.atomic.rkey);
+ set_raddr_seg(wqe, atomic_wr(wr)->remote_addr,
+ atomic_wr(wr)->rkey);
wqe += sizeof (struct mthca_raddr_seg);
- set_atomic_seg(wqe, wr);
+ set_atomic_seg(wqe, atomic_wr(wr));
wqe += sizeof (struct mthca_atomic_seg);
size += (sizeof (struct mthca_raddr_seg) +
sizeof (struct mthca_atomic_seg)) / 16;
@@ -2018,8 +2018,8 @@ int mthca_arbel_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:
- set_raddr_seg(wqe, wr->wr.rdma.remote_addr,
- wr->wr.rdma.rkey);
+ set_raddr_seg(wqe, rdma_wr(wr)->remote_addr,
+ rdma_wr(wr)->rkey);
wqe += sizeof (struct mthca_raddr_seg);
size += sizeof (struct mthca_raddr_seg) / 16;
break;
@@ -2035,8 +2035,8 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
switch (wr->opcode) {
case IB_WR_RDMA_WRITE:
case IB_WR_RDMA_WRITE_WITH_IMM:
- set_raddr_seg(wqe, wr->wr.rdma.remote_addr,
- wr->wr.rdma.rkey);
+ set_raddr_seg(wqe, rdma_wr(wr)->remote_addr,
+ rdma_wr(wr)->rkey);
wqe += sizeof (struct mthca_raddr_seg);
size += sizeof (struct mthca_raddr_seg) / 16;
break;
@@ -2049,13 +2049,13 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
break;
case UD:
- set_arbel_ud_seg(wqe, wr);
+ set_arbel_ud_seg(wqe, ud_wr(wr));
wqe += sizeof (struct mthca_arbel_ud_seg);
size += sizeof (struct mthca_arbel_ud_seg) / 16;
break;
case MLX:
- err = build_mlx_header(dev, to_msqp(qp), ind, wr,
+ err = build_mlx_header(dev, to_msqp(qp), ind, ud_wr(wr),
wqe - sizeof (struct mthca_next_seg),
wqe);
if (err) {