diff options
| author |   Shyam Sundar <ssundar@marvell.com> | 2020-10-21 02:27:14 -0700 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2020-10-26 18:06:45 -0400 |
| commit | 846101960fdbe312efac13ae4843410f516ff599 (patch) | |
| tree | 46a1b668a5e0634bf350df97e96b9321835068d8 | |
| parent | scsi: fc: Parse FPIN packets and update statistics (diff) | |
| download | linux-dev-846101960fdbe312efac13ae4843410f516ff599.tar.xz linux-dev-846101960fdbe312efac13ae4843410f516ff599.zip | |
scsi: fc: Add mechanism to update FPIN signal statistics
Under fc_host_statistics add statistics for Congestion Signals that are
delivered to the host as interrupt signals.
Link: https://lore.kernel.org/r/20201021092715.22669-5-njavali@marvell.com
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/scsi_transport_fc.c | 5 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_fc.h | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 4dfa0e40d8e5..3f816ab1d845 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -2100,6 +2100,9 @@ fc_host_statistic(fc_xid_not_found); fc_host_statistic(fc_xid_busy); fc_host_statistic(fc_seq_not_found); fc_host_statistic(fc_non_bls_resp); +fc_host_statistic(cn_sig_warn); +fc_host_statistic(cn_sig_alarm); + #define fc_host_fpin_statistic(name) \ static ssize_t fc_host_fpinstat_##name(struct device *cd, \ @@ -2182,6 +2185,8 @@ static struct attribute *fc_statistics_attrs[] = { &device_attr_host_fc_xid_busy.attr, &device_attr_host_fc_seq_not_found.attr, &device_attr_host_fc_non_bls_resp.attr, + &device_attr_host_cn_sig_warn.attr, + &device_attr_host_cn_sig_alarm.attr, &device_attr_host_reset_statistics.attr, &device_attr_host_fpin_dn.attr, &device_attr_host_fpin_dn_unknown.attr, diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index a636c1986e22..c759b29e46c7 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -468,6 +468,9 @@ struct fc_host_statistics { u64 fc_seq_not_found; /* seq is not found for exchange */ u64 fc_non_bls_resp; /* a non BLS response frame with a sequence responder in new exch */ + /* Host Congestion Signals */ + u64 cn_sig_warn; + u64 cn_sig_alarm; }; |