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scsi: qla2xxx: Changes to support N2N logins

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If we discovered a topology that is N2N then we will issue a login to
the target. If our WWPN is bigger than the target's WWPN then we will
initiate login, otherwise we will just wait for the target to initiate
login.

[mkp: many whitespace errors]

Signed-off-by: Duane Grigsby <duane.grigsby@cavium.com>
Signed-off-by: Michael Hernandez <michael.hernandez@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Tested-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Duane Grigsby
2017-10-13 09:34:06 -07:00
committed by Martin K. Petersen
parent c0c462c8a0
commit edd05de197
7 changed files with 459 additions and 21 deletions
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4
drivers/scsi/qla2xxx/qla_gbl.h
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@@ -45,6 +45,8 @@ extern int qla2x00_fabric_login(scsi_qla_host_t *, fc_port_t *, uint16_t *);
extern int qla2x00_local_device_login(scsi_qla_host_t *, fc_port_t *);
extern int qla24xx_els_dcmd_iocb(scsi_qla_host_t *, int, port_id_t);
extern int qla24xx_els_dcmd2_iocb(scsi_qla_host_t *, int, fc_port_t *,
port_id_t);
extern void qla2x00_update_fcports(scsi_qla_host_t *);
@@ -487,6 +489,8 @@ int qla24xx_gidlist_wait(struct scsi_qla_host *, void *, dma_addr_t,
uint16_t *);
int __qla24xx_parse_gpdb(struct scsi_qla_host *, fc_port_t *,
struct port_database_24xx *);
int qla24xx_get_port_login_templ(scsi_qla_host_t *, dma_addr_t,
void *, uint16_t);
extern int qla27xx_get_zio_threshold(scsi_qla_host_t *, uint16_t *);
extern int qla27xx_set_zio_threshold(scsi_qla_host_t *, uint16_t);