diff options
| author | Mike Marciniszyn <mike.marciniszyn@intel.com> | 2012-05-07 14:02:31 -0400 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2012-05-14 12:43:34 -0700 |
| commit | 1c94283ddbe8a9945c4aaac8b0be90d47f97f2df (patch) | |
| tree | 37d46ea239d1e872007bd0dc93b2a3d40311afa8 /drivers/infiniband/hw/qib/qib_qp.c | |
| parent | 3236b2d469dba42fde837b8cb06308f7f360dfed (diff) | |
| download | linux-1c94283ddbe8a9945c4aaac8b0be90d47f97f2df.tar.bz2 | |
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_qp.c')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_qp.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/qib/qib_qp.c b/drivers/infiniband/hw/qib/qib_qp.c index 7e7e16fbee99..1ce56b51ab1a 100644 --- a/drivers/infiniband/hw/qib/qib_qp.c +++ b/drivers/infiniband/hw/qib/qib_qp.c @@ -1038,6 +1038,11 @@ struct ib_qp *qib_create_qp(struct ib_pd *ibpd, goto bail_swq; } RCU_INIT_POINTER(qp->next, NULL); + qp->s_hdr = kzalloc(sizeof(*qp->s_hdr), GFP_KERNEL); + if (!qp->s_hdr) { + ret = ERR_PTR(-ENOMEM); + goto bail_qp; + } qp->timeout_jiffies = usecs_to_jiffies((4096UL * (1UL << qp->timeout)) / 1000UL); @@ -1159,6 +1164,7 @@ bail_ip: vfree(qp->r_rq.wq); free_qpn(&dev->qpn_table, qp->ibqp.qp_num); bail_qp: + kfree(qp->s_hdr); kfree(qp); bail_swq: vfree(swq); @@ -1214,6 +1220,7 @@ int qib_destroy_qp(struct ib_qp *ibqp) else vfree(qp->r_rq.wq); vfree(qp->s_wq); + kfree(qp->s_hdr); kfree(qp); return 0; } |