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authorMike Marciniszyn <mike.marciniszyn@intel.com>2012-05-07 14:02:31 -0400
committerRoland Dreier <roland@purestorage.com>2012-05-14 12:43:34 -0700
commit1c94283ddbe8a9945c4aaac8b0be90d47f97f2df (patch)
tree37d46ea239d1e872007bd0dc93b2a3d40311afa8 /drivers/infiniband/hw/qib/qib_ud.c
parent3236b2d469dba42fde837b8cb06308f7f360dfed (diff)
IB/qib: Add cache line awareness to qib_qp and qib_devdata structures
This patch reorganizes the QP and devdata files to be more cache line aware. qib_qp fields in particular are split into read-mostly, send, and receive fields. qib_devdata fields are split into read-mostly and read/write fields Testing has show that bidirectional tests improve by as much as 100% with this patch. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_ud.c')
-rw-r--r--drivers/infiniband/hw/qib/qib_ud.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/qib/qib_ud.c b/drivers/infiniband/hw/qib/qib_ud.c
index 828609fa4d2..a468bf2d446 100644
--- a/drivers/infiniband/hw/qib/qib_ud.c
+++ b/drivers/infiniband/hw/qib/qib_ud.c
@@ -321,11 +321,11 @@ int qib_make_ud_req(struct qib_qp *qp)
if (ah_attr->ah_flags & IB_AH_GRH) {
/* Header size in 32-bit words. */
- qp->s_hdrwords += qib_make_grh(ibp, &qp->s_hdr.u.l.grh,
+ qp->s_hdrwords += qib_make_grh(ibp, &qp->s_hdr->u.l.grh,
&ah_attr->grh,
qp->s_hdrwords, nwords);
lrh0 = QIB_LRH_GRH;
- ohdr = &qp->s_hdr.u.l.oth;
+ ohdr = &qp->s_hdr->u.l.oth;
/*
* Don't worry about sending to locally attached multicast
* QPs. It is unspecified by the spec. what happens.
@@ -333,7 +333,7 @@ int qib_make_ud_req(struct qib_qp *qp)
} else {
/* Header size in 32-bit words. */
lrh0 = QIB_LRH_BTH;
- ohdr = &qp->s_hdr.u.oth;
+ ohdr = &qp->s_hdr->u.oth;
}
if (wqe->wr.opcode == IB_WR_SEND_WITH_IMM) {
qp->s_hdrwords++;
@@ -346,15 +346,15 @@ int qib_make_ud_req(struct qib_qp *qp)
lrh0 |= 0xF000; /* Set VL (see ch. 13.5.3.1) */
else
lrh0 |= ibp->sl_to_vl[ah_attr->sl] << 12;
- qp->s_hdr.lrh[0] = cpu_to_be16(lrh0);
- qp->s_hdr.lrh[1] = cpu_to_be16(ah_attr->dlid); /* DEST LID */
- qp->s_hdr.lrh[2] = cpu_to_be16(qp->s_hdrwords + nwords + SIZE_OF_CRC);
+ qp->s_hdr->lrh[0] = cpu_to_be16(lrh0);
+ qp->s_hdr->lrh[1] = cpu_to_be16(ah_attr->dlid); /* DEST LID */
+ qp->s_hdr->lrh[2] = cpu_to_be16(qp->s_hdrwords + nwords + SIZE_OF_CRC);
lid = ppd->lid;
if (lid) {
lid |= ah_attr->src_path_bits & ((1 << ppd->lmc) - 1);
- qp->s_hdr.lrh[3] = cpu_to_be16(lid);
+ qp->s_hdr->lrh[3] = cpu_to_be16(lid);
} else
- qp->s_hdr.lrh[3] = IB_LID_PERMISSIVE;
+ qp->s_hdr->lrh[3] = IB_LID_PERMISSIVE;
if (wqe->wr.send_flags & IB_SEND_SOLICITED)
bth0 |= IB_BTH_SOLICITED;
bth0 |= extra_bytes << 20;