diff options
| author |   James Smart <jsmart2021@gmail.com> | 2019-04-05 16:04:20 -0700 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2019-04-08 21:29:16 -0400 |
| commit | a7dff3ad4787381a3aa831d558fb720b8f354435 (patch) | |
| tree | a8983897b4576e16cabb4ca3c1e650931d61635b /include/uapi/scsi | |
| parent | scsi: lpfc: Fix a recently introduced compiler warning (diff) | |
| download | linux-dev-a7dff3ad4787381a3aa831d558fb720b8f354435.tar.xz linux-dev-a7dff3ad4787381a3aa831d558fb720b8f354435.zip | |
scsi: fc: add FPIN ELS definition
T11 has introduced a new Fabric Notifications mechanism whereby the fabric
can notify a port of events occurring in the fabric. The notifications are
given by the FPIN ELS.
Add the FPIN ELS definitions to the kernel.
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/uapi/scsi')
| -rw-r--r-- | include/uapi/scsi/fc/fc_els.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/uapi/scsi/fc/fc_els.h b/include/uapi/scsi/fc/fc_els.h index b7e0a5ed40de..a81c53508cc6 100644 --- a/include/uapi/scsi/fc/fc_els.h +++ b/include/uapi/scsi/fc/fc_els.h @@ -52,6 +52,7 @@ enum fc_els_cmd { ELS_RRQ = 0x12, /* reinstate recovery qualifier */ ELS_REC = 0x13, /* read exchange concise */ ELS_SRR = 0x14, /* sequence retransmission request */ + ELS_FPIN = 0x16, /* Fabric Performance Impact Notification */ ELS_PRLI = 0x20, /* process login */ ELS_PRLO = 0x21, /* process logout */ ELS_SCN = 0x22, /* state change notification */ @@ -119,6 +120,7 @@ enum fc_els_cmd { [ELS_RRQ] = "RRQ", \ [ELS_REC] = "REC", \ [ELS_SRR] = "SRR", \ + [ELS_FPIN] = "FPIN", \ [ELS_PRLI] = "PRLI", \ [ELS_PRLO] = "PRLO", \ [ELS_SCN] = "SCN", \ @@ -829,4 +831,35 @@ enum fc_els_clid_ic { ELS_CLID_IC_LIP = 8, /* receiving LIP */ }; + +/* + * Fabric Notification Descriptor Tag values + */ +enum fc_fn_dtag { + ELS_FN_DTAG_LNK_INTEGRITY = 0x00020001, /* Link Integrity */ + ELS_FN_DTAG_PEER_CONGEST = 0x00020003, /* Peer Congestion */ + ELS_FN_DTAG_CONGESTION = 0x00020004, /* Congestion */ +}; + +/* + * Fabric Notification Descriptor + */ +struct fc_fn_desc { + __be32 fn_desc_tag; /* Notification Descriptor Tag */ + __be32 fn_desc_value_len; /* Length of Descriptor Value field + * (in bytes) + */ + __u8 fn_desc_value[0]; /* Descriptor Value */ +}; + +/* + * ELS_FPIN - Fabric Performance Impact Notification + */ +struct fc_els_fpin { + __u8 fpin_cmd; /* command (0x16) */ + __u8 fpin_zero[3]; /* specified as zero - part of cmd */ + __be32 fpin_desc_cnt; /* count of descriptors */ + struct fc_fn_desc fpin_desc[0]; /* Descriptor list */ +}; + #endif /* _FC_ELS_H_ */ |