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scsi: qla2xxx: edif: Reduce N2N thrashing at app_start time

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For N2N + remote WWPN is bigger than local adapter, remote adapter will
login to local adapter while authentication application is not running.
When authentication application starts, the current session in FW needs to
to be invalidated.

Make sure the old session is torn down before triggering a relogin.

Link: https://lore.kernel.org/r/20220608115849.16693-9-njavali@marvell.com
Fixes: 4de067e5df ("scsi: qla2xxx: edif: Add N2N support for EDIF")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@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:
Quinn Tran 2022-06-08 04:58:47 -07:00 committed by Martin K. Petersen
parent ec538eb838
commit 37be3f9d69
1 changed files with 34 additions and 13 deletions
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47
drivers/scsi/qla2xxx/qla_edif.c
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@ -517,11 +517,28 @@ qla_edif_app_start(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list)
fcport->n2n_link_reset_cnt = 0;
if (vha->hw->flags.n2n_fw_acc_sec)
set_bit(N2N_LINK_RESET, &vha->dpc_flags);
else
if (vha->hw->flags.n2n_fw_acc_sec) {
list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list)
qla_edif_sa_ctl_init(vha, fcport);
/*
* While authentication app was not running, remote device
* could still try to login with this local port. Let's
* clear the state and try again.
*/
qla2x00_wait_for_sess_deletion(vha);
/* bounce the link to get the other guy to relogin */
if (!vha->hw->flags.n2n_bigger) {
set_bit(N2N_LINK_RESET, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
} else {
qla2x00_wait_for_hba_online(vha);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
qla2xxx_wake_dpc(vha);
qla2x00_wait_for_hba_online(vha);
}
} else {
list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
ql_dbg(ql_dbg_edif, vha, 0x2058,
@ -920,17 +937,21 @@ qla_edif_app_getfcinfo(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
if (tdid.b24 != 0 && tdid.b24 != fcport->d_id.b24)
continue;
if (fcport->scan_state != QLA_FCPORT_FOUND)
continue;
if (!N2N_TOPO(vha->hw)) {
if (fcport->scan_state != QLA_FCPORT_FOUND)
continue;
if (fcport->port_type == FCT_UNKNOWN && !fcport->fc4_features)
rval = qla24xx_async_gffid(vha, fcport, true);
if (fcport->port_type == FCT_UNKNOWN &&
!fcport->fc4_features)
rval = qla24xx_async_gffid(vha, fcport,
true);
if (!rval &&
!(fcport->fc4_features & FC4_FF_TARGET ||
fcport->port_type &
(FCT_TARGET | FCT_NVME_TARGET)))
continue;
if (!rval &&
!(fcport->fc4_features & FC4_FF_TARGET ||
fcport->port_type &
(FCT_TARGET | FCT_NVME_TARGET)))
continue;
}
rval = 0;