1 files changed, 245 insertions, 305 deletions

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index d4c3baec9172..643d2324082e 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -37,8 +37,8 @@ static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
 static int qla84xx_init_chip(scsi_qla_host_t *);
 static int qla25xx_init_queues(struct qla_hw_data *);
 static int qla24xx_post_prli_work(struct scsi_qla_host*, fc_port_t *);
-static void qla24xx_handle_plogi_done_event(struct scsi_qla_host *,
-    struct event_arg *);
+static void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha,
+				      struct event_arg *ea);
 static void qla24xx_handle_prli_done_event(struct scsi_qla_host *,
     struct event_arg *);
 static void __qla24xx_handle_gpdb_event(scsi_qla_host_t *, struct event_arg *);
@@ -63,10 +63,8 @@ qla2x00_sp_timeout(struct timer_list *t)
 	iocb->timeout(sp);
 }
 
-void
-qla2x00_sp_free(void *ptr)
+void qla2x00_sp_free(srb_t *sp)
 {
-	srb_t *sp = ptr;
 	struct srb_iocb *iocb = &sp->u.iocb_cmd;
 
 	del_timer(&iocb->timer);
@@ -99,22 +97,33 @@ static void qla24xx_abort_iocb_timeout(void *data)
 {
 	srb_t *sp = data;
 	struct srb_iocb *abt = &sp->u.iocb_cmd;
+	struct qla_qpair *qpair = sp->qpair;
+	u32 handle;
+	unsigned long flags;
+
+	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
+	for (handle = 1; handle < qpair->req->num_outstanding_cmds; handle++) {
+		/* removing the abort */
+		if (qpair->req->outstanding_cmds[handle] == sp) {
+			qpair->req->outstanding_cmds[handle] = NULL;
+			break;
+		}
+	}
+	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
 
 	abt->u.abt.comp_status = CS_TIMEOUT;
-	sp->done(sp, QLA_FUNCTION_TIMEOUT);
+	sp->done(sp, QLA_OS_TIMER_EXPIRED);
 }
 
-static void qla24xx_abort_sp_done(void *ptr, int res)
+static void qla24xx_abort_sp_done(srb_t *sp, int res)
 {
-	srb_t *sp = ptr;
 	struct srb_iocb *abt = &sp->u.iocb_cmd;
 
-	if (del_timer(&sp->u.iocb_cmd.timer)) {
-		if (sp->flags & SRB_WAKEUP_ON_COMP)
-			complete(&abt->u.abt.comp);
-		else
-			sp->free(sp);
-	}
+	del_timer(&sp->u.iocb_cmd.timer);
+	if (sp->flags & SRB_WAKEUP_ON_COMP)
+		complete(&abt->u.abt.comp);
+	else
+		sp->free(sp);
 }
 
 static int qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait)
@@ -127,7 +136,7 @@ static int qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait)
 	sp = qla2xxx_get_qpair_sp(cmd_sp->vha, cmd_sp->qpair, cmd_sp->fcport,
 				  GFP_ATOMIC);
 	if (!sp)
-		goto done;
+		return rval;
 
 	abt_iocb = &sp->u.iocb_cmd;
 	sp->type = SRB_ABT_CMD;
@@ -151,20 +160,18 @@ static int qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait)
 	       cmd_sp->type);
 
 	rval = qla2x00_start_sp(sp);
-	if (rval != QLA_SUCCESS)
-		goto done_free_sp;
+	if (rval != QLA_SUCCESS) {
+		sp->free(sp);
+		return rval;
+	}
 
 	if (wait) {
 		wait_for_completion(&abt_iocb->u.abt.comp);
 		rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
 			QLA_SUCCESS : QLA_FUNCTION_FAILED;
-	} else {
-		goto done;
+		sp->free(sp);
 	}
 
-done_free_sp:
-	sp->free(sp);
-done:
 	return rval;
 }
 
@@ -234,13 +241,15 @@ qla2x00_async_iocb_timeout(void *data)
 			sp->done(sp, QLA_FUNCTION_TIMEOUT);
 		}
 		break;
+	default:
+		WARN_ON_ONCE(true);
+		sp->done(sp, QLA_FUNCTION_TIMEOUT);
+		break;
 	}
 }
 
-static void
-qla2x00_async_login_sp_done(void *ptr, int res)
+static void qla2x00_async_login_sp_done(srb_t *sp, int res)
 {
-	srb_t *sp = ptr;
 	struct scsi_qla_host *vha = sp->vha;
 	struct srb_iocb *lio = &sp->u.iocb_cmd;
 	struct event_arg ea;
@@ -252,14 +261,13 @@ qla2x00_async_login_sp_done(void *ptr, int res)
 
 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
 		memset(&ea, 0, sizeof(ea));
-		ea.event = FCME_PLOGI_DONE;
 		ea.fcport = sp->fcport;
 		ea.data[0] = lio->u.logio.data[0];
 		ea.data[1] = lio->u.logio.data[1];
 		ea.iop[0] = lio->u.logio.iop[0];
 		ea.iop[1] = lio->u.logio.iop[1];
 		ea.sp = sp;
-		qla2x00_fcport_event_handler(vha, &ea);
+		qla24xx_handle_plogi_done_event(vha, &ea);
 	}
 
 	sp->free(sp);
@@ -289,8 +297,13 @@ qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
 	struct srb_iocb *lio;
 	int rval = QLA_FUNCTION_FAILED;
 
-	if (!vha->flags.online)
-		goto done;
+	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT) ||
+	    fcport->loop_id == FC_NO_LOOP_ID) {
+		ql_log(ql_log_warn, vha, 0xffff,
+		    "%s: %8phC - not sending command.\n",
+		    __func__, fcport->port_name);
+		return rval;
+	}
 
 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 	if (!sp)
@@ -341,11 +354,8 @@ done:
 	return rval;
 }
 
-static void
-qla2x00_async_logout_sp_done(void *ptr, int res)
+static void qla2x00_async_logout_sp_done(srb_t *sp, int res)
 {
-	srb_t *sp = ptr;
-
 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
 	sp->fcport->login_gen++;
 	qlt_logo_completion_handler(sp->fcport, res);
@@ -359,9 +369,6 @@ qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
 	struct srb_iocb *lio;
 	int rval = QLA_FUNCTION_FAILED;
 
-	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
-		return rval;
-
 	fcport->flags |= FCF_ASYNC_SENT;
 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 	if (!sp)
@@ -405,10 +412,8 @@ qla2x00_async_prlo_done(struct scsi_qla_host *vha, fc_port_t *fcport,
 	qlt_logo_completion_handler(fcport, data[0]);
 }
 
-static void
-qla2x00_async_prlo_sp_done(void *s, int res)
+static void qla2x00_async_prlo_sp_done(srb_t *sp, int res)
 {
-	srb_t *sp = (srb_t *)s;
 	struct srb_iocb *lio = &sp->u.iocb_cmd;
 	struct scsi_qla_host *vha = sp->vha;
 
@@ -469,6 +474,9 @@ void qla24xx_handle_adisc_event(scsi_qla_host_t *vha, struct event_arg *ea)
 	    fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
 	    fcport->rscn_gen, ea->sp->gen1, fcport->loop_id);
 
+	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
+		  ea->data[0]);
+
 	if (ea->data[0] != MBS_COMMAND_COMPLETE) {
 		ql_dbg(ql_dbg_disc, vha, 0x2066,
 		    "%s %8phC: adisc fail: post delete\n",
@@ -511,10 +519,8 @@ static int qla_post_els_plogi_work(struct scsi_qla_host *vha, fc_port_t *fcport)
 	return qla2x00_post_work(vha, e);
 }
 
-static void
-qla2x00_async_adisc_sp_done(void *ptr, int res)
+static void qla2x00_async_adisc_sp_done(srb_t *sp, int res)
 {
-	srb_t *sp = ptr;
 	struct scsi_qla_host *vha = sp->vha;
 	struct event_arg ea;
 	struct srb_iocb *lio = &sp->u.iocb_cmd;
@@ -526,7 +532,6 @@ qla2x00_async_adisc_sp_done(void *ptr, int res)
 	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
 
 	memset(&ea, 0, sizeof(ea));
-	ea.event = FCME_ADISC_DONE;
 	ea.rc = res;
 	ea.data[0] = lio->u.logio.data[0];
 	ea.data[1] = lio->u.logio.data[1];
@@ -535,7 +540,7 @@ qla2x00_async_adisc_sp_done(void *ptr, int res)
 	ea.fcport = sp->fcport;
 	ea.sp = sp;
 
-	qla2x00_fcport_event_handler(vha, &ea);
+	qla24xx_handle_adisc_event(vha, &ea);
 
 	sp->free(sp);
 }
@@ -803,6 +808,15 @@ static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
 			fcport->fw_login_state = current_login_state;
 			fcport->d_id = id;
 			switch (current_login_state) {
+			case DSC_LS_PRLI_PEND:
+				/*
+				 * In the middle of PRLI. Let it finish.
+				 * Allow relogin code to recheck state again
+				 * with GNL. Push disc_state back to DELETED
+				 * so GNL can go out again
+				 */
+				fcport->disc_state = DSC_DELETED;
+				break;
 			case DSC_LS_PRLI_COMP:
 				if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
 					fcport->port_type = FCT_INITIATOR;
@@ -917,10 +931,8 @@ static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
 	}
 } /* gnl_event */
 
-static void
-qla24xx_async_gnl_sp_done(void *s, int res)
+static void qla24xx_async_gnl_sp_done(srb_t *sp, int res)
 {
-	struct srb *sp = s;
 	struct scsi_qla_host *vha = sp->vha;
 	unsigned long flags;
 	struct fc_port *fcport = NULL, *tf;
@@ -943,7 +955,6 @@ qla24xx_async_gnl_sp_done(void *s, int res)
 	memset(&ea, 0, sizeof(ea));
 	ea.sp = sp;
 	ea.rc = res;
-	ea.event = FCME_GNL_DONE;
 
 	if (sp->u.iocb_cmd.u.mbx.in_mb[1] >=
 	    sizeof(struct get_name_list_extended)) {
@@ -982,7 +993,7 @@ qla24xx_async_gnl_sp_done(void *s, int res)
 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
 		ea.fcport = fcport;
 
-		qla2x00_fcport_event_handler(vha, &ea);
+		qla24xx_handle_gnl_done_event(vha, &ea);
 	}
 
 	/* create new fcport if fw has knowledge of new sessions */
@@ -1107,10 +1118,8 @@ int qla24xx_post_gnl_work(struct scsi_qla_host *vha, fc_port_t *fcport)
 	return qla2x00_post_work(vha, e);
 }
 
-static
-void qla24xx_async_gpdb_sp_done(void *s, int res)
+static void qla24xx_async_gpdb_sp_done(srb_t *sp, int res)
 {
-	struct srb *sp = s;
 	struct scsi_qla_host *vha = sp->vha;
 	struct qla_hw_data *ha = vha->hw;
 	fc_port_t *fcport = sp->fcport;
@@ -1129,11 +1138,10 @@ void qla24xx_async_gpdb_sp_done(void *s, int res)
 
 	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
 	memset(&ea, 0, sizeof(ea));
-	ea.event = FCME_GPDB_DONE;
 	ea.fcport = fcport;
 	ea.sp = sp;
 
-	qla2x00_fcport_event_handler(vha, &ea);
+	qla24xx_handle_gpdb_event(vha, &ea);
 
 	dma_pool_free(ha->s_dma_pool, sp->u.iocb_cmd.u.mbx.in,
 		sp->u.iocb_cmd.u.mbx.in_dma);
@@ -1154,10 +1162,8 @@ static int qla24xx_post_prli_work(struct scsi_qla_host *vha, fc_port_t *fcport)
 	return qla2x00_post_work(vha, e);
 }
 
-static void
-qla2x00_async_prli_sp_done(void *ptr, int res)
+static void qla2x00_async_prli_sp_done(srb_t *sp, int res)
 {
-	srb_t *sp = ptr;
 	struct scsi_qla_host *vha = sp->vha;
 	struct srb_iocb *lio = &sp->u.iocb_cmd;
 	struct event_arg ea;
@@ -1170,7 +1176,6 @@ qla2x00_async_prli_sp_done(void *ptr, int res)
 
 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
 		memset(&ea, 0, sizeof(ea));
-		ea.event = FCME_PRLI_DONE;
 		ea.fcport = sp->fcport;
 		ea.data[0] = lio->u.logio.data[0];
 		ea.data[1] = lio->u.logio.data[1];
@@ -1178,7 +1183,7 @@ qla2x00_async_prli_sp_done(void *ptr, int res)
 		ea.iop[1] = lio->u.logio.iop[1];
 		ea.sp = sp;
 
-		qla2x00_fcport_event_handler(vha, &ea);
+		qla24xx_handle_prli_done_event(vha, &ea);
 	}
 
 	sp->free(sp);
@@ -1262,8 +1267,13 @@ int qla24xx_async_gpdb(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
 	struct port_database_24xx *pd;
 	struct qla_hw_data *ha = vha->hw;
 
-	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
+	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT) ||
+	    fcport->loop_id == FC_NO_LOOP_ID) {
+		ql_log(ql_log_warn, vha, 0xffff,
+		    "%s: %8phC - not sending command.\n",
+		    __func__, fcport->port_name);
 		return rval;
+	}
 
 	fcport->disc_state = DSC_GPDB;
 
@@ -1473,7 +1483,7 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
 	u64 wwn;
 	u16 sec;
 
-	ql_dbg(ql_dbg_disc + ql_dbg_verbose, vha, 0x20d8,
+	ql_dbg(ql_dbg_disc, vha, 0x20d8,
 	    "%s %8phC DS %d LS %d P %d fl %x confl %p rscn %d|%d login %d lid %d scan %d\n",
 	    __func__, fcport->port_name, fcport->disc_state,
 	    fcport->fw_login_state, fcport->login_pause, fcport->flags,
@@ -1484,6 +1494,7 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
 		return 0;
 
 	if ((fcport->loop_id != FC_NO_LOOP_ID) &&
+	    qla_dual_mode_enabled(vha) &&
 	    ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
 	     (fcport->fw_login_state == DSC_LS_PRLI_PEND)))
 		return 0;
@@ -1636,12 +1647,34 @@ int qla24xx_post_newsess_work(struct scsi_qla_host *vha, port_id_t *id,
 	return qla2x00_post_work(vha, e);
 }
 
-static
+void qla2x00_handle_rscn(scsi_qla_host_t *vha, struct event_arg *ea)
+{
+	fc_port_t *fcport;
+	unsigned long flags;
+
+	fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
+	if (fcport) {
+		fcport->scan_needed = 1;
+		fcport->rscn_gen++;
+	}
+
+	spin_lock_irqsave(&vha->work_lock, flags);
+	if (vha->scan.scan_flags == 0) {
+		ql_dbg(ql_dbg_disc, vha, 0xffff, "%s: schedule\n", __func__);
+		vha->scan.scan_flags |= SF_QUEUED;
+		schedule_delayed_work(&vha->scan.scan_work, 5);
+	}
+	spin_unlock_irqrestore(&vha->work_lock, flags);
+}
+
 void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
 	struct event_arg *ea)
 {
 	fc_port_t *fcport = ea->fcport;
 
+	if (test_bit(UNLOADING, &vha->dpc_flags))
+		return;
+
 	ql_dbg(ql_dbg_disc, vha, 0x2102,
 	    "%s %8phC DS %d LS %d P %d del %d cnfl %p rscn %d|%d login %d|%d fl %x\n",
 	    __func__, fcport->port_name, fcport->disc_state,
@@ -1651,110 +1684,16 @@ void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
 	    fcport->last_login_gen, fcport->login_gen,
 	    fcport->flags);
 
-	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
-	    (fcport->fw_login_state == DSC_LS_PRLI_PEND))
-		return;
-
-	if (fcport->fw_login_state == DSC_LS_PLOGI_COMP) {
-		if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) {
-			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
-			return;
-		}
-	}
-
 	if (fcport->last_rscn_gen != fcport->rscn_gen) {
-		ql_dbg(ql_dbg_disc, vha, 0x20e9, "%s %d %8phC post gidpn\n",
+		ql_dbg(ql_dbg_disc, vha, 0x20e9, "%s %d %8phC post gnl\n",
 		    __func__, __LINE__, fcport->port_name);
-
+		qla24xx_post_gnl_work(vha, fcport);
 		return;
 	}
 
 	qla24xx_fcport_handle_login(vha, fcport);
 }
 
-
-static void qla_handle_els_plogi_done(scsi_qla_host_t *vha,
-				      struct event_arg *ea)
-{
-	ql_dbg(ql_dbg_disc, vha, 0x2118,
-	    "%s %d %8phC post PRLI\n",
-	    __func__, __LINE__, ea->fcport->port_name);
-	qla24xx_post_prli_work(vha, ea->fcport);
-}
-
-void qla2x00_fcport_event_handler(scsi_qla_host_t *vha, struct event_arg *ea)
-{
-	fc_port_t *fcport;
-
-	switch (ea->event) {
-	case FCME_RELOGIN:
-		if (test_bit(UNLOADING, &vha->dpc_flags))
-			return;
-
-		qla24xx_handle_relogin_event(vha, ea);
-		break;
-	case FCME_RSCN:
-		if (test_bit(UNLOADING, &vha->dpc_flags))
-			return;
-		{
-			unsigned long flags;
-
-			fcport = qla2x00_find_fcport_by_nportid
-				(vha, &ea->id, 1);
-			if (fcport) {
-				fcport->scan_needed = 1;
-				fcport->rscn_gen++;
-			}
-
-			spin_lock_irqsave(&vha->work_lock, flags);
-			if (vha->scan.scan_flags == 0) {
-				ql_dbg(ql_dbg_disc, vha, 0xffff,
-				    "%s: schedule\n", __func__);
-				vha->scan.scan_flags |= SF_QUEUED;
-				schedule_delayed_work(&vha->scan.scan_work, 5);
-			}
-			spin_unlock_irqrestore(&vha->work_lock, flags);
-		}
-		break;
-	case FCME_GNL_DONE:
-		qla24xx_handle_gnl_done_event(vha, ea);
-		break;
-	case FCME_GPSC_DONE:
-		qla24xx_handle_gpsc_event(vha, ea);
-		break;
-	case FCME_PLOGI_DONE:	/* Initiator side sent LLIOCB */
-		qla24xx_handle_plogi_done_event(vha, ea);
-		break;
-	case FCME_PRLI_DONE:
-		qla24xx_handle_prli_done_event(vha, ea);
-		break;
-	case FCME_GPDB_DONE:
-		qla24xx_handle_gpdb_event(vha, ea);
-		break;
-	case FCME_GPNID_DONE:
-		qla24xx_handle_gpnid_event(vha, ea);
-		break;
-	case FCME_GFFID_DONE:
-		qla24xx_handle_gffid_event(vha, ea);
-		break;
-	case FCME_ADISC_DONE:
-		qla24xx_handle_adisc_event(vha, ea);
-		break;
-	case FCME_GNNID_DONE:
-		qla24xx_handle_gnnid_event(vha, ea);
-		break;
-	case FCME_GFPNID_DONE:
-		qla24xx_handle_gfpnid_event(vha, ea);
-		break;
-	case FCME_ELS_PLOGI_DONE:
-		qla_handle_els_plogi_done(vha, ea);
-		break;
-	default:
-		BUG_ON(1);
-		break;
-	}
-}
-
 /*
  * RSCN(s) came in for this fcport, but the RSCN(s) was not able
  * to be consumed by the fcport
@@ -1772,10 +1711,9 @@ void qla_rscn_replay(fc_port_t *fcport)
 
 	if (fcport->scan_needed) {
 		memset(&ea, 0, sizeof(ea));
-		ea.event = FCME_RSCN;
 		ea.id = fcport->d_id;
 		ea.id.b.rsvd_1 = RSCN_PORT_ADDR;
-		qla2x00_fcport_event_handler(fcport->vha, &ea);
+		qla2x00_handle_rscn(fcport->vha, &ea);
 	}
 }
 
@@ -1789,10 +1727,8 @@ qla2x00_tmf_iocb_timeout(void *data)
 	complete(&tmf->u.tmf.comp);
 }
 
-static void
-qla2x00_tmf_sp_done(void *ptr, int res)
+static void qla2x00_tmf_sp_done(srb_t *sp, int res)
 {
-	srb_t *sp = ptr;
 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
 
 	complete(&tmf->u.tmf.comp);
@@ -1890,6 +1826,9 @@ qla24xx_async_abort_command(srb_t *sp)
 static void
 qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
 {
+	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
+		  ea->data[0]);
+
 	switch (ea->data[0]) {
 	case MBS_COMMAND_COMPLETE:
 		ql_dbg(ql_dbg_disc, vha, 0x2118,
@@ -1929,7 +1868,7 @@ qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
 	}
 }
 
-static void
+void
 qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
 {
 	port_id_t cid;	/* conflict Nport id */
@@ -1953,8 +1892,11 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
 		return;
 	}
 
-	if (fcport->disc_state == DSC_DELETE_PEND)
+	if ((fcport->disc_state == DSC_DELETE_PEND) ||
+	    (fcport->disc_state == DSC_DELETED)) {
+		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
 		return;
+	}
 
 	if (ea->sp->gen2 != fcport->login_gen) {
 		/* target side must have changed it. */
@@ -1972,6 +1914,9 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
 		return;
 	}
 
+	WARN_ONCE(!qla2xxx_is_valid_mbs(ea->data[0]), "mbs: %#x\n",
+		  ea->data[0]);
+
 	switch (ea->data[0]) {
 	case MBS_COMMAND_COMPLETE:
 		/*
@@ -2266,6 +2211,10 @@ qla2x00_initialize_adapter(scsi_qla_host_t *vha)
 	if (qla_ini_mode_enabled(vha) || qla_dual_mode_enabled(vha))
 		rval = qla2x00_init_rings(vha);
 
+	/* No point in continuing if firmware initialization failed. */
+	if (rval != QLA_SUCCESS)
+		return rval;
+
 	ha->flags.chip_reset_done = 1;
 
 	if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
@@ -3082,103 +3031,113 @@ qla24xx_chip_diag(scsi_qla_host_t *vha)
 }
 
 static void
-qla2x00_alloc_offload_mem(scsi_qla_host_t *vha)
+qla2x00_init_fce_trace(scsi_qla_host_t *vha)
 {
 	int rval;
 	dma_addr_t tc_dma;
 	void *tc;
 	struct qla_hw_data *ha = vha->hw;
 
-	if (ha->eft) {
+	if (!IS_FWI2_CAPABLE(ha))
+		return;
+
+	if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
+	    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
+		return;
+
+	if (ha->fce) {
 		ql_dbg(ql_dbg_init, vha, 0x00bd,
-		    "%s: Offload Mem is already allocated.\n",
-		    __func__);
+		       "%s: FCE Mem is already allocated.\n",
+		       __func__);
 		return;
 	}
 
-	if (IS_FWI2_CAPABLE(ha)) {
-		/* Allocate memory for Fibre Channel Event Buffer. */
-		if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
-		    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
-			goto try_eft;
+	/* Allocate memory for Fibre Channel Event Buffer. */
+	tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
+				GFP_KERNEL);
+	if (!tc) {
+		ql_log(ql_log_warn, vha, 0x00be,
+		       "Unable to allocate (%d KB) for FCE.\n",
+		       FCE_SIZE / 1024);
+		return;
+	}
 
-		if (ha->fce)
-			dma_free_coherent(&ha->pdev->dev,
-			    FCE_SIZE, ha->fce, ha->fce_dma);
+	rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
+					ha->fce_mb, &ha->fce_bufs);
+	if (rval) {
+		ql_log(ql_log_warn, vha, 0x00bf,
+		       "Unable to initialize FCE (%d).\n", rval);
+		dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc, tc_dma);
+		return;
+	}
 
-		/* Allocate memory for Fibre Channel Event Buffer. */
-		tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
-					GFP_KERNEL);
-		if (!tc) {
-			ql_log(ql_log_warn, vha, 0x00be,
-			    "Unable to allocate (%d KB) for FCE.\n",
-			    FCE_SIZE / 1024);
-			goto try_eft;
-		}
-
-		rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
-		    ha->fce_mb, &ha->fce_bufs);
-		if (rval) {
-			ql_log(ql_log_warn, vha, 0x00bf,
-			    "Unable to initialize FCE (%d).\n", rval);
-			dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc,
-			    tc_dma);
-			ha->flags.fce_enabled = 0;
-			goto try_eft;
-		}
-		ql_dbg(ql_dbg_init, vha, 0x00c0,
-		    "Allocate (%d KB) for FCE...\n", FCE_SIZE / 1024);
-
-		ha->flags.fce_enabled = 1;
-		ha->fce_dma = tc_dma;
-		ha->fce = tc;
-
-try_eft:
-		if (ha->eft)
-			dma_free_coherent(&ha->pdev->dev,
-			    EFT_SIZE, ha->eft, ha->eft_dma);
+	ql_dbg(ql_dbg_init, vha, 0x00c0,
+	       "Allocated (%d KB) for FCE...\n", FCE_SIZE / 1024);
 
-		/* Allocate memory for Extended Trace Buffer. */
-		tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
-					GFP_KERNEL);
-		if (!tc) {
-			ql_log(ql_log_warn, vha, 0x00c1,
-			    "Unable to allocate (%d KB) for EFT.\n",
-			    EFT_SIZE / 1024);
-			goto eft_err;
-		}
+	ha->flags.fce_enabled = 1;
+	ha->fce_dma = tc_dma;
+	ha->fce = tc;
+}
 
-		rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
-		if (rval) {
-			ql_log(ql_log_warn, vha, 0x00c2,
-			    "Unable to initialize EFT (%d).\n", rval);
-			dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc,
-			    tc_dma);
-			goto eft_err;
-		}
-		ql_dbg(ql_dbg_init, vha, 0x00c3,
-		    "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
+static void
+qla2x00_init_eft_trace(scsi_qla_host_t *vha)
+{
+	int rval;
+	dma_addr_t tc_dma;
+	void *tc;
+	struct qla_hw_data *ha = vha->hw;
+
+	if (!IS_FWI2_CAPABLE(ha))
+		return;
 
-		ha->eft_dma = tc_dma;
-		ha->eft = tc;
+	if (ha->eft) {
+		ql_dbg(ql_dbg_init, vha, 0x00bd,
+		    "%s: EFT Mem is already allocated.\n",
+		    __func__);
+		return;
 	}
 
-eft_err:
-	return;
+	/* Allocate memory for Extended Trace Buffer. */
+	tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
+				GFP_KERNEL);
+	if (!tc) {
+		ql_log(ql_log_warn, vha, 0x00c1,
+		       "Unable to allocate (%d KB) for EFT.\n",
+		       EFT_SIZE / 1024);
+		return;
+	}
+
+	rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
+	if (rval) {
+		ql_log(ql_log_warn, vha, 0x00c2,
+		       "Unable to initialize EFT (%d).\n", rval);
+		dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc, tc_dma);
+		return;
+	}
+
+	ql_dbg(ql_dbg_init, vha, 0x00c3,
+	       "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
+
+	ha->eft_dma = tc_dma;
+	ha->eft = tc;
+}
+
+static void
+qla2x00_alloc_offload_mem(scsi_qla_host_t *vha)
+{
+	qla2x00_init_fce_trace(vha);
+	qla2x00_init_eft_trace(vha);
 }
 
 void
 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
 {
-	int rval;
 	uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
 	    eft_size, fce_size, mq_size;
 	struct qla_hw_data *ha = vha->hw;
 	struct req_que *req = ha->req_q_map[0];
 	struct rsp_que *rsp = ha->rsp_q_map[0];
 	struct qla2xxx_fw_dump *fw_dump;
-	dma_addr_t tc_dma;
-	void *tc;
 
 	dump_size = fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
 	req_q_size = rsp_q_size = 0;
@@ -3216,37 +3175,13 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
 		}
 		if (ha->tgt.atio_ring)
 			mq_size += ha->tgt.atio_q_length * sizeof(request_t);
-		/* Allocate memory for Fibre Channel Event Buffer. */
-		if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
-		    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
-			goto try_eft;
 
-		fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
-try_eft:
+		qla2x00_init_fce_trace(vha);
+		if (ha->fce)
+			fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
+		qla2x00_init_eft_trace(vha);
 		if (ha->eft)
-			dma_free_coherent(&ha->pdev->dev,
-			    EFT_SIZE, ha->eft, ha->eft_dma);
-
-		/* Allocate memory for Extended Trace Buffer. */
-		tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
-					 GFP_KERNEL);
-		if (!tc) {
-			ql_log(ql_log_warn, vha, 0x00c1,
-			    "Unable to allocate (%d KB) for EFT.\n",
-			    EFT_SIZE / 1024);
-			goto allocate;
-		}
-
-		rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
-		if (rval) {
-			ql_log(ql_log_warn, vha, 0x00c2,
-			    "Unable to initialize EFT (%d).\n", rval);
-			dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc,
-			    tc_dma);
-		}
-		ql_dbg(ql_dbg_init, vha, 0x00c3,
-		    "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
-		eft_size = EFT_SIZE;
+			eft_size = EFT_SIZE;
 	}
 
 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
@@ -3268,24 +3203,22 @@ try_eft:
 			    j, fwdt->dump_size);
 			dump_size += fwdt->dump_size;
 		}
-		goto allocate;
+	} else {
+		req_q_size = req->length * sizeof(request_t);
+		rsp_q_size = rsp->length * sizeof(response_t);
+		dump_size = offsetof(struct qla2xxx_fw_dump, isp);
+		dump_size += fixed_size + mem_size + req_q_size + rsp_q_size
+			+ eft_size;
+		ha->chain_offset = dump_size;
+		dump_size += mq_size + fce_size;
+		if (ha->exchoffld_buf)
+			dump_size += sizeof(struct qla2xxx_offld_chain) +
+				ha->exchoffld_size;
+		if (ha->exlogin_buf)
+			dump_size += sizeof(struct qla2xxx_offld_chain) +
+				ha->exlogin_size;
 	}
 
-	req_q_size = req->length * sizeof(request_t);
-	rsp_q_size = rsp->length * sizeof(response_t);
-	dump_size = offsetof(struct qla2xxx_fw_dump, isp);
-	dump_size += fixed_size + mem_size + req_q_size + rsp_q_size + eft_size;
-	ha->chain_offset = dump_size;
-	dump_size += mq_size + fce_size;
-
-	if (ha->exchoffld_buf)
-		dump_size += sizeof(struct qla2xxx_offld_chain) +
-			ha->exchoffld_size;
-	if (ha->exlogin_buf)
-		dump_size += sizeof(struct qla2xxx_offld_chain) +
-			ha->exlogin_size;
-
-allocate:
 	if (!ha->fw_dump_len || dump_size > ha->fw_dump_alloc_len) {
 
 		ql_dbg(ql_dbg_init, vha, 0x00c5,
@@ -4400,7 +4333,7 @@ qla2x00_configure_hba(scsi_qla_host_t *vha)
 
 inline void
 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
-	char *def)
+		       const char *def)
 {
 	char *st, *en;
 	uint16_t index;
@@ -4412,7 +4345,7 @@ qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
 	if (len > sizeof(zero))
 		len = sizeof(zero);
 	if (memcmp(model, &zero, len) != 0) {
-		strncpy(ha->model_number, model, len);
+		memcpy(ha->model_number, model, len);
 		st = en = ha->model_number;
 		en += len - 1;
 		while (en > st) {
@@ -4425,21 +4358,23 @@ qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
 		if (use_tbl &&
 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
 		    index < QLA_MODEL_NAMES)
-			strncpy(ha->model_desc,
+			strlcpy(ha->model_desc,
 			    qla2x00_model_name[index * 2 + 1],
-			    sizeof(ha->model_desc) - 1);
+			    sizeof(ha->model_desc));
 	} else {
 		index = (ha->pdev->subsystem_device & 0xff);
 		if (use_tbl &&
 		    ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
 		    index < QLA_MODEL_NAMES) {
-			strcpy(ha->model_number,
-			    qla2x00_model_name[index * 2]);
-			strncpy(ha->model_desc,
+			strlcpy(ha->model_number,
+				qla2x00_model_name[index * 2],
+				sizeof(ha->model_number));
+			strlcpy(ha->model_desc,
 			    qla2x00_model_name[index * 2 + 1],
-			    sizeof(ha->model_desc) - 1);
+			    sizeof(ha->model_desc));
 		} else {
-			strcpy(ha->model_number, def);
+			strlcpy(ha->model_number, def,
+				sizeof(ha->model_number));
 		}
 	}
 	if (IS_FWI2_CAPABLE(ha))
@@ -5044,7 +4979,7 @@ qla2x00_configure_local_loop(scsi_qla_host_t *vha)
 
 	uint16_t	index;
 	uint16_t	entries;
-	char		*id_iter;
+	struct gid_list_info *gid;
 	uint16_t	loop_id;
 	uint8_t		domain, area, al_pa;
 	struct qla_hw_data *ha = vha->hw;
@@ -5119,18 +5054,16 @@ qla2x00_configure_local_loop(scsi_qla_host_t *vha)
 	new_fcport->flags &= ~FCF_FABRIC_DEVICE;
 
 	/* Add devices to port list. */
-	id_iter = (char *)ha->gid_list;
+	gid = ha->gid_list;
 	for (index = 0; index < entries; index++) {
-		domain = ((struct gid_list_info *)id_iter)->domain;
-		area = ((struct gid_list_info *)id_iter)->area;
-		al_pa = ((struct gid_list_info *)id_iter)->al_pa;
+		domain = gid->domain;
+		area = gid->area;
+		al_pa = gid->al_pa;
 		if (IS_QLA2100(ha) || IS_QLA2200(ha))
-			loop_id = (uint16_t)
-			    ((struct gid_list_info *)id_iter)->loop_id_2100;
+			loop_id = gid->loop_id_2100;
 		else
-			loop_id = le16_to_cpu(
-			    ((struct gid_list_info *)id_iter)->loop_id);
-		id_iter += ha->gid_list_info_size;
+			loop_id = le16_to_cpu(gid->loop_id);
+		gid = (void *)gid + ha->gid_list_info_size;
 
 		/* Bypass reserved domain fields. */
 		if ((domain & 0xf0) == 0xf0)
@@ -5355,7 +5288,7 @@ qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
 	    "%s %8phN. rport %p is %s mode\n",
 	    __func__, fcport->port_name, rport,
 	    (fcport->port_type == FCT_TARGET) ? "tgt" :
-	    ((fcport->port_type & FCT_NVME) ? "nvme" :"ini"));
+	    ((fcport->port_type & FCT_NVME) ? "nvme" : "ini"));
 
 	fc_remote_port_rolechg(rport, rport_ids.roles);
 }
@@ -6596,7 +6529,8 @@ qla2x00_quiesce_io(scsi_qla_host_t *vha)
 					LOOP_DOWN_TIME);
 	}
 	/* Wait for pending cmds to complete */
-	qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST);
+	WARN_ON_ONCE(qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST)
+		     != QLA_SUCCESS);
 }
 
 void
@@ -6684,8 +6618,10 @@ qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
 	}
 
 	/* Clear all async request states across all VPs. */
-	list_for_each_entry(fcport, &vha->vp_fcports, list)
+	list_for_each_entry(fcport, &vha->vp_fcports, list) {
 		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
+		fcport->scan_state = 0;
+	}
 	spin_lock_irqsave(&ha->vport_slock, flags);
 	list_for_each_entry(vp, &ha->vp_list, list) {
 		atomic_inc(&vp->vref_count);
@@ -7519,8 +7455,12 @@ qla27xx_get_active_image(struct scsi_qla_host *vha,
 		goto check_sec_image;
 	}
 
-	qla24xx_read_flash_data(vha, (void *)(&pri_image_status),
-	    ha->flt_region_img_status_pri, sizeof(pri_image_status) >> 2);
+	if (qla24xx_read_flash_data(vha, (void *)(&pri_image_status),
+	    ha->flt_region_img_status_pri, sizeof(pri_image_status) >> 2) !=
+	    QLA_SUCCESS) {
+		WARN_ON_ONCE(true);
+		goto check_sec_image;
+	}
 	qla27xx_print_image(vha, "Primary image", &pri_image_status);
 
 	if (qla27xx_check_image_status_signature(&pri_image_status)) {
@@ -8274,7 +8214,7 @@ qla81xx_nvram_config(scsi_qla_host_t *vha)
 		    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
 		    "primary" : "secondary");
 	}
-	qla24xx_read_flash_data(vha, ha->vpd, faddr, ha->vpd_size >> 2);
+	ha->isp_ops->read_optrom(vha, ha->vpd, faddr << 2, ha->vpd_size);
 
 	/* Get NVRAM data into cache and calculate checksum. */
 	faddr = ha->flt_region_nvram;
@@ -8286,7 +8226,7 @@ qla81xx_nvram_config(scsi_qla_host_t *vha)
 	    "Loading %s nvram image.\n",
 	    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
 	    "primary" : "secondary");
-	qla24xx_read_flash_data(vha, ha->nvram, faddr, ha->nvram_size >> 2);
+	ha->isp_ops->read_optrom(vha, ha->nvram, faddr << 2, ha->nvram_size);
 
 	dptr = (uint32_t *)nv;
 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++, dptr++)