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authorVasu Dev <vasu.dev@intel.com>2012-05-25 10:26:48 -0700
committerJames Bottomley <JBottomley@Parallels.com>2012-07-20 08:31:48 +0100
commit0f02a6652803235a4893c7b01dd6eab862a913ec (patch)
tree21c80b2f5778a620da6c3e2599b6deee8e459ec0 /drivers/scsi/libfc
parent1bd49b482077e231842352621169dedff1f41931 (diff)
[SCSI] libfc: adds FCP failures stats
Adds stats to track FCP pkt and frame alloc failure. Signed-off-by: Vasu Dev <vasu.dev@intel.com> Acked-by : Robert Love <robert.w.love@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/libfc')
-rw-r--r--drivers/scsi/libfc/fc_fcp.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 5c4c504fc105..3c96e9300d00 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -158,6 +158,9 @@ static struct fc_fcp_pkt *fc_fcp_pkt_alloc(struct fc_lport *lport, gfp_t gfp)
fsp->timer.data = (unsigned long)fsp;
INIT_LIST_HEAD(&fsp->list);
spin_lock_init(&fsp->scsi_pkt_lock);
+ } else {
+ per_cpu_ptr(lport->stats, get_cpu())->FcpPktAllocFails++;
+ put_cpu();
}
return fsp;
}
@@ -264,6 +267,9 @@ static int fc_fcp_send_abort(struct fc_fcp_pkt *fsp)
if (!fsp->seq_ptr)
return -EINVAL;
+ per_cpu_ptr(fsp->lp->stats, get_cpu())->FcpPktAborts++;
+ put_cpu();
+
fsp->state |= FC_SRB_ABORT_PENDING;
return fsp->lp->tt.seq_exch_abort(fsp->seq_ptr, 0);
}
@@ -420,6 +426,8 @@ static inline struct fc_frame *fc_fcp_frame_alloc(struct fc_lport *lport,
if (likely(fp))
return fp;
+ per_cpu_ptr(lport->stats, get_cpu())->FcpFrameAllocFails++;
+ put_cpu();
/* error case */
fc_fcp_can_queue_ramp_down(lport);
return NULL;