diff options
| author | Vasu Dev <vasu.dev@intel.com> | 2012-05-25 10:26:48 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-07-20 08:31:48 +0100 |
| commit | 0f02a6652803235a4893c7b01dd6eab862a913ec (patch) | |
| tree | 21c80b2f5778a620da6c3e2599b6deee8e459ec0 | |
| parent | 1bd49b482077e231842352621169dedff1f41931 (diff) | |
| download | linux-0f02a6652803235a4893c7b01dd6eab862a913ec.tar.bz2 | |
[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>
| -rw-r--r-- | drivers/scsi/libfc/fc_fcp.c | 8 | ||||
| -rw-r--r-- | include/scsi/libfc.h | 6 |
2 files changed, 14 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; diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h index ea52ca203c95..f257a74e6de4 100644 --- a/include/scsi/libfc.h +++ b/include/scsi/libfc.h @@ -232,6 +232,9 @@ struct fc_rport_priv { * @RxWords: Number of received words * @ErrorFrames: Number of received error frames * @DumpedFrames: Number of dumped frames + * @FcpPktAllocFails: Number of fcp packet allocation failures + * @FcpPktAborts: Number of fcp packet aborts + * @FcpFrameAllocFails: Number of fcp frame allocation failures * @LinkFailureCount: Number of link failures * @LossOfSignalCount: Number for signal losses * @InvalidTxWordCount: Number of invalid transmitted words @@ -252,6 +255,9 @@ struct fc_stats { u64 RxWords; u64 ErrorFrames; u64 DumpedFrames; + u64 FcpPktAllocFails; + u64 FcpPktAborts; + u64 FcpFrameAllocFails; u64 LinkFailureCount; u64 LossOfSignalCount; u64 InvalidTxWordCount; |