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| author |   Shyam Sundar <ssundar@marvell.com> | 2020-10-21 02:27:12 -0700 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2020-10-26 18:06:45 -0400 |
| commit | 547aab51a914e1f18394d8238ef9fb4f76d5b491 (patch) | |
| tree | 36b4507443f7a00eab561ca366cfc5a774137efa /include/scsi | |
| parent | scsi: fc: Update formal FPIN descriptor definitions (diff) | |
| download | linux-dev-547aab51a914e1f18394d8238ef9fb4f76d5b491.tar.xz linux-dev-547aab51a914e1f18394d8238ef9fb4f76d5b491.zip | |
scsi: fc: Add FPIN statistics to fc_host and fc_rport objects
Add a structure for holding FPIN statistics, for host & rport respectively,
and add associated sysfs nodes:
/sys/class/fc_host/hostXX/statistics/
/sys/class/fc_remote_ports/rport-XX\:Y-Z/statistics/
Link: https://lore.kernel.org/r/20201021092715.22669-3-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>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_transport_fc.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index 1c7dd35cb7a0..487a403ee51e 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -285,6 +285,36 @@ struct fc_rport_identifiers { u32 roles; }; +/* + * Fabric Performance Impact Notification Statistics + */ +struct fc_fpin_stats { + /* Delivery */ + u64 dn; + u64 dn_unknown; + u64 dn_timeout; + u64 dn_unable_to_route; + u64 dn_device_specific; + + /* Link Integrity */ + u64 li; + u64 li_failure_unknown; + u64 li_link_failure_count; + u64 li_loss_of_sync_count; + u64 li_loss_of_signals_count; + u64 li_prim_seq_err_count; + u64 li_invalid_tx_word_count; + u64 li_invalid_crc_count; + u64 li_device_specific; + + /* Congestion/Peer Congestion */ + u64 cn; + u64 cn_clear; + u64 cn_lost_credit; + u64 cn_credit_stall; + u64 cn_oversubscription; + u64 cn_device_specific; +}; /* Macro for use in defining Remote Port attributes */ #define FC_RPORT_ATTR(_name,_mode,_show,_store) \ @@ -326,6 +356,7 @@ struct fc_rport { /* aka fc_starget_attrs */ /* Dynamic Attributes */ u32 dev_loss_tmo; /* Remote Port loss timeout in seconds. */ + struct fc_fpin_stats fpin_stats; /* Private (Transport-managed) Attributes */ u64 node_name; @@ -516,6 +547,7 @@ struct fc_host_attrs { char symbolic_name[FC_SYMBOLIC_NAME_SIZE]; char system_hostname[FC_SYMBOLIC_NAME_SIZE]; u32 dev_loss_tmo; + struct fc_fpin_stats fpin_stats; /* Private (Transport-managed) Attributes */ enum fc_tgtid_binding_type tgtid_bind_type; |