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authorMike Marciniszyn <mike.marciniszyn@intel.com>2014-03-07 08:40:55 -0500
committerRoland Dreier <roland@purestorage.com>2014-03-17 16:16:51 -0700
commit7d7632add8dd99f68b21546efff08a5a162de184 (patch)
tree297e7ae3fd16e09386fefa6687281c53b3ca5549 /drivers/infiniband/hw/qib/qib_ruc.c
parentIB/qib: Add percpu counter replacing qib_devdata int_counter (diff)
downloadlinux-dev-7d7632add8dd99f68b21546efff08a5a162de184.tar.xz
linux-dev-7d7632add8dd99f68b21546efff08a5a162de184.zip
IB/qib: Modify software pma counters to use percpu variables
The counters, unicast_xmit, unicast_rcv, multicast_xmit, multicast_rcv are now maintained as percpu variables. The mad code is modified to add a z_ latch so that the percpu counters monotonically increase with appropriate adjustments in the reset, read logic to maintain the z_ latch. This patch also corrects the fact the unitcast_xmit wasn't handled at all for UC and RC QPs. 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_ruc.c')
-rw-r--r--drivers/infiniband/hw/qib/qib_ruc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/qib/qib_ruc.c b/drivers/infiniband/hw/qib/qib_ruc.c
index 357b6cfcd46c..4c07a8b34ffe 100644
--- a/drivers/infiniband/hw/qib/qib_ruc.c
+++ b/drivers/infiniband/hw/qib/qib_ruc.c
@@ -703,6 +703,7 @@ void qib_make_ruc_header(struct qib_qp *qp, struct qib_other_headers *ohdr,
ohdr->bth[0] = cpu_to_be32(bth0);
ohdr->bth[1] = cpu_to_be32(qp->remote_qpn);
ohdr->bth[2] = cpu_to_be32(bth2);
+ this_cpu_inc(ibp->pmastats->n_unicast_xmit);
}
/**