diff options
| author | Mike Marciniszyn <mike.marciniszyn@intel.com> | 2014-03-07 08:40:55 -0500 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2014-03-17 16:16:51 -0700 |
| commit | 7d7632add8dd99f68b21546efff08a5a162de184 (patch) | |
| tree | 297e7ae3fd16e09386fefa6687281c53b3ca5549 /drivers/infiniband/hw/qib/qib_verbs.c | |
| parent | 1ed88dd7d0b361e677b2690f573e5c274bb25c87 (diff) | |
| download | linux-stable-7d7632add8dd99f68b21546efff08a5a162de184.tar.gz linux-stable-7d7632add8dd99f68b21546efff08a5a162de184.tar.bz2 linux-stable-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_verbs.c')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_verbs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c index 092b0bb1bb78..1b00734fb80d 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.c +++ b/drivers/infiniband/hw/qib/qib_verbs.c @@ -662,7 +662,7 @@ void qib_ib_rcv(struct qib_ctxtdata *rcd, void *rhdr, void *data, u32 tlen) mcast = qib_mcast_find(ibp, &hdr->u.l.grh.dgid); if (mcast == NULL) goto drop; - ibp->n_multicast_rcv++; + this_cpu_inc(ibp->pmastats->n_multicast_rcv); list_for_each_entry_rcu(p, &mcast->qp_list, list) qib_qp_rcv(rcd, hdr, 1, data, tlen, p->qp); /* @@ -689,7 +689,7 @@ void qib_ib_rcv(struct qib_ctxtdata *rcd, void *rhdr, void *data, u32 tlen) rcd->lookaside_qpn = qp_num; } else qp = rcd->lookaside_qp; - ibp->n_unicast_rcv++; + this_cpu_inc(ibp->pmastats->n_unicast_rcv); qib_qp_rcv(rcd, hdr, lnh == QIB_LRH_GRH, data, tlen, qp); } return; |