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scsi: scsi_transport_fc: Add FPIN fc event codes 

Add a new event type - an FPIN event.

Add a new routine, fc_host_fpin_rcv(), that lldd's call when an FPIN is
received. The routine processes the fpin payload.  For now, the routine
only logs an FPIN event.

Signed-off-by: Muneendra <muneendra.kumar@broadcom.com>
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>
This commit is contained in:
James Smart 2019-04-05 16:04:22 -07:00 committed by Martin K. Petersen
parent 2b1be55819
commit c39e0af64b
2 changed files with 20 additions and 0 deletions
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18
drivers/scsi/scsi_transport_fc.c
View File

@ -147,6 +147,7 @@ static const struct {
{ FCH_EVT_PORT_OFFLINE, "port_offline" },
{ FCH_EVT_PORT_FABRIC, "port_fabric" },
{ FCH_EVT_LINK_UNKNOWN, "link_unknown" },
{ FCH_EVT_LINK_FPIN, "link_FPIN" },
{ FCH_EVT_VENDOR_UNIQUE, "vendor_unique" },
};
fc_enum_name_search(host_event_code, fc_host_event_code,
@ -640,6 +641,23 @@ fc_host_post_vendor_event(struct Scsi_Host *shost, u32 event_number,
}
EXPORT_SYMBOL(fc_host_post_vendor_event);
/**
* fc_host_rcv_fpin - routine to process a received FPIN.
* @shost: host the FPIN was received on
* @fpin_len: length of FPIN payload, in bytes
* @fpin_buf: pointer to FPIN payload
*
* Notes:
* This routine assumes no locks are held on entry.
*/
void
fc_host_fpin_rcv(struct Scsi_Host *shost, u32 fpin_len, char *fpin_buf)
{
fc_host_post_fc_event(shost, fc_get_event_number(),
FCH_EVT_LINK_FPIN, fpin_len, fpin_buf, 0);
}
EXPORT_SYMBOL(fc_host_fpin_rcv);
static __init int fc_transport_init(void)
{

2
include/scsi/scsi_transport_fc.h
View File

@ -473,6 +473,7 @@ enum fc_host_event_code {
FCH_EVT_PORT_ONLINE = 0x202,
FCH_EVT_PORT_FABRIC = 0x204,
FCH_EVT_LINK_UNKNOWN = 0x500,
FCH_EVT_LINK_FPIN = 0x501,
FCH_EVT_VENDOR_UNIQUE = 0xffff,
};
@ -808,6 +809,7 @@ void fc_host_post_fc_event(struct Scsi_Host *shost, u32 event_number,
* Note: when calling fc_host_post_fc_event(), vendor_id may be
* specified as 0.
*/
void fc_host_fpin_rcv(struct Scsi_Host *shost, u32 fpin_len, char *fpin_buf);
struct fc_vport *fc_vport_create(struct Scsi_Host *shost, int channel,
struct fc_vport_identifiers *);
int fc_vport_terminate(struct fc_vport *vport);