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scsi: fc: Update formal FPIN descriptor definitions 

Add Fabric Performance Impact Notification (FPIN) descriptor definitions
for the following FPINs:

 - Delivery Notification Descriptor

 - Peer Congestion Notification Descriptor

 - Congestion Notification Descriptor

Link: https://lore.kernel.org/r/20201021092715.22669-2-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>
This commit is contained in:
Shyam Sundar 2020-10-21 02:27:11 -07:00 committed by Martin K. Petersen
parent 3650b228f8
commit 874163aab7
1 changed files with 113 additions and 1 deletions
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114
include/uapi/scsi/fc/fc_els.h
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@ -916,7 +916,9 @@ enum fc_els_clid_ic {
ELS_CLID_IC_LIP = 8, /* receiving LIP */
};
/*
* Link Integrity event types
*/
enum fc_fpin_li_event_types {
FPIN_LI_UNKNOWN = 0x0,
FPIN_LI_LINK_FAILURE = 0x1,
@ -943,6 +945,54 @@ enum fc_fpin_li_event_types {
{ FPIN_LI_DEVICE_SPEC, "Device Specific" }, \
}
/*
* Delivery event types
*/
enum fc_fpin_deli_event_types {
FPIN_DELI_UNKNOWN = 0x0,
FPIN_DELI_TIMEOUT = 0x1,
FPIN_DELI_UNABLE_TO_ROUTE = 0x2,
FPIN_DELI_DEVICE_SPEC = 0xF,
};
/*
* Initializer useful for decoding table.
* Please keep this in sync with the above definitions.
*/
#define FC_FPIN_DELI_EVT_TYPES_INIT { \
{ FPIN_DELI_UNKNOWN, "Unknown" }, \
{ FPIN_DELI_TIMEOUT, "Timeout" }, \
{ FPIN_DELI_UNABLE_TO_ROUTE, "Unable to Route" }, \
{ FPIN_DELI_DEVICE_SPEC, "Device Specific" }, \
}
/*
* Congestion event types
*/
enum fc_fpin_congn_event_types {
FPIN_CONGN_CLEAR = 0x0,
FPIN_CONGN_LOST_CREDIT = 0x1,
FPIN_CONGN_CREDIT_STALL = 0x2,
FPIN_CONGN_OVERSUBSCRIPTION = 0x3,
FPIN_CONGN_DEVICE_SPEC = 0xF,
};
/*
* Initializer useful for decoding table.
* Please keep this in sync with the above definitions.
*/
#define FC_FPIN_CONGN_EVT_TYPES_INIT { \
{ FPIN_CONGN_CLEAR, "Clear" }, \
{ FPIN_CONGN_LOST_CREDIT, "Lost Credit" }, \
{ FPIN_CONGN_CREDIT_STALL, "Credit Stall" }, \
{ FPIN_CONGN_OVERSUBSCRIPTION, "Oversubscription" }, \
{ FPIN_CONGN_DEVICE_SPEC, "Device Specific" }, \
}
enum fc_fpin_congn_severity_types {
FPIN_CONGN_SEVERITY_WARNING = 0xF1,
FPIN_CONGN_SEVERITY_ERROR = 0xF7,
};
/*
* Link Integrity Notification Descriptor
@ -974,6 +1024,68 @@ struct fc_fn_li_desc {
*/
};
/*
* Delivery Notification Descriptor
*/
struct fc_fn_deli_desc {
__be32 desc_tag; /* Descriptor Tag (0x00020002) */
__be32 desc_len; /* Length of Descriptor (in bytes).
* Size of descriptor excluding
* desc_tag and desc_len fields.
*/
__be64 detecting_wwpn; /* Port Name that detected event */
__be64 attached_wwpn; /* Port Name of device attached to
* detecting Port Name
*/
__be32 deli_reason_code;/* see enum fc_fpin_deli_event_types */
};
/*
* Peer Congestion Notification Descriptor
*/
struct fc_fn_peer_congn_desc {
__be32 desc_tag; /* Descriptor Tag (0x00020003) */
__be32 desc_len; /* Length of Descriptor (in bytes).
* Size of descriptor excluding
* desc_tag and desc_len fields.
*/
__be64 detecting_wwpn; /* Port Name that detected event */
__be64 attached_wwpn; /* Port Name of device attached to
* detecting Port Name
*/
__be16 event_type; /* see enum fc_fpin_congn_event_types */
__be16 event_modifier; /* Implementation specific value
* describing the event type
*/
__be32 event_period; /* duration (ms) of the detected
* congestion event
*/
__be32 pname_count; /* number of portname_list elements */
__be64 pname_list[0]; /* list of N_Port_Names accessible
* through the attached port
*/
};
/*
* Congestion Notification Descriptor
*/
struct fc_fn_congn_desc {
__be32 desc_tag; /* Descriptor Tag (0x00020004) */
__be32 desc_len; /* Length of Descriptor (in bytes).
* Size of descriptor excluding
* desc_tag and desc_len fields.
*/
__be16 event_type; /* see enum fc_fpin_congn_event_types */
__be16 event_modifier; /* Implementation specific value
* describing the event type
*/
__be32 event_period; /* duration (ms) of the detected
* congestion event
*/
__u8 severity; /* command */
__u8 resv[3]; /* reserved - must be zero */
};
/*
* ELS_FPIN - Fabric Performance Impact Notification
*/