Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This is mostly updates to the usual drivers: mpt3sas, lpfc, qla2xxx,
  hisi_sas, smartpqi, megaraid_sas, arcmsr.

  In addition, with the continuing absence of Nic we have target updates
  for tcmu and target core (all with reviews and acks).

  The biggest observable change is going to be that we're (again) trying
  to switch to mulitqueue as the default (a user can still override the
  setting on the kernel command line).

  Other major core stuff is the removal of the remaining Microchannel
  drivers, an update of the internal timers and some reworks of
  completion and result handling"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (203 commits)
  scsi: core: use blk_mq_run_hw_queues in scsi_kick_queue
  scsi: ufs: remove unnecessary query(DM) UPIU trace
  scsi: qla2xxx: Fix issue reported by static checker for qla2x00_els_dcmd2_sp_done()
  scsi: aacraid: Spelling fix in comment
  scsi: mpt3sas: Fix calltrace observed while running IO & reset
  scsi: aic94xx: fix an error code in aic94xx_init()
  scsi: st: remove redundant pointer STbuffer
  scsi: qla2xxx: Update driver version to 10.00.00.08-k
  scsi: qla2xxx: Migrate NVME N2N handling into state machine
  scsi: qla2xxx: Save frame payload size from ICB
  scsi: qla2xxx: Fix stalled relogin
  scsi: qla2xxx: Fix race between switch cmd completion and timeout
  scsi: qla2xxx: Fix Management Server NPort handle reservation logic
  scsi: qla2xxx: Flush mailbox commands on chip reset
  scsi: qla2xxx: Fix unintended Logout
  scsi: qla2xxx: Fix session state stuck in Get Port DB
  scsi: qla2xxx: Fix redundant fc_rport registration
  scsi: qla2xxx: Silent erroneous message
  scsi: qla2xxx: Prevent sysfs access when chip is down
  scsi: qla2xxx: Add longer window for chip reset
  ...

1 files changed, 78 insertions, 55 deletions

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 1fbd16c8c9a7..42b8f0d3e580 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -2816,6 +2816,9 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
 	ha->optrom_size = OPTROM_SIZE_2300;
 	ha->max_exchg = FW_MAX_EXCHANGES_CNT;
+	atomic_set(&ha->num_pend_mbx_stage1, 0);
+	atomic_set(&ha->num_pend_mbx_stage2, 0);
+	atomic_set(&ha->num_pend_mbx_stage3, 0);
 
 	/* Assign ISP specific operations. */
 	if (IS_QLA2100(ha)) {
@@ -3046,7 +3049,8 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	host = base_vha->host;
 	base_vha->req = req;
 	if (IS_QLA2XXX_MIDTYPE(ha))
-		base_vha->mgmt_svr_loop_id = NPH_MGMT_SERVER;
+		base_vha->mgmt_svr_loop_id =
+			qla2x00_reserve_mgmt_server_loop_id(base_vha);
 	else
 		base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
 						base_vha->vp_idx;
@@ -3830,14 +3834,6 @@ void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
 		return;
 
 	set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
-
-	if (fcport->login_retry == 0) {
-		fcport->login_retry = vha->hw->login_retry_count;
-
-		ql_dbg(ql_dbg_disc, vha, 0x20a3,
-		    "Port login retry %8phN, lid 0x%04x retry cnt=%d.\n",
-		    fcport->port_name, fcport->loop_id, fcport->login_retry);
-	}
 }
 
 /*
@@ -4785,7 +4781,6 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
 	struct qlt_plogi_ack_t *pla =
 	    (struct qlt_plogi_ack_t *)e->u.new_sess.pla;
 	uint8_t free_fcport = 0;
-	u64 wwn;
 
 	ql_dbg(ql_dbg_disc, vha, 0xffff,
 	    "%s %d %8phC enter\n",
@@ -4813,10 +4808,10 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
 			fcport->d_id = e->u.new_sess.id;
 			fcport->flags |= FCF_FABRIC_DEVICE;
 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
-			if (e->u.new_sess.fc4_type & FS_FC4TYPE_FCP)
+			if (e->u.new_sess.fc4_type == FS_FC4TYPE_FCP)
 				fcport->fc4_type = FC4_TYPE_FCP_SCSI;
 
-			if (e->u.new_sess.fc4_type & FS_FC4TYPE_NVME) {
+			if (e->u.new_sess.fc4_type == FS_FC4TYPE_NVME) {
 				fcport->fc4_type = FC4_TYPE_OTHER;
 				fcport->fc4f_nvme = FC4_TYPE_NVME;
 			}
@@ -4858,9 +4853,6 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
 
 	if (fcport) {
-		if (N2N_TOPO(vha->hw))
-			fcport->flags &= ~FCF_FABRIC_DEVICE;
-
 		fcport->id_changed = 1;
 		fcport->scan_state = QLA_FCPORT_FOUND;
 		memcpy(fcport->node_name, e->u.new_sess.node_name, WWN_SIZE);
@@ -4921,12 +4913,22 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
 			if (dfcp)
 				qlt_schedule_sess_for_deletion(tfcp);
 
-			wwn = wwn_to_u64(fcport->node_name);
 
-			if (!wwn)
-				qla24xx_async_gnnid(vha, fcport);
-			else
-				qla24xx_async_gnl(vha, fcport);
+			if (N2N_TOPO(vha->hw))
+				fcport->flags &= ~FCF_FABRIC_DEVICE;
+
+			if (N2N_TOPO(vha->hw)) {
+				if (vha->flags.nvme_enabled) {
+					fcport->fc4f_nvme = 1;
+					fcport->n2n_flag = 1;
+				}
+				fcport->fw_login_state = 0;
+				/*
+				 * wait link init done before sending login
+				 */
+			} else {
+				qla24xx_fcport_handle_login(vha, fcport);
+			}
 		}
 	}
 
@@ -5061,6 +5063,10 @@ qla2x00_do_work(struct scsi_qla_host *vha)
 		case QLA_EVT_IIDMA:
 			qla_do_iidma_work(vha, e->u.fcport.fcport);
 			break;
+		case QLA_EVT_ELS_PLOGI:
+			qla24xx_els_dcmd2_iocb(vha, ELS_DCMD_PLOGI,
+			    e->u.fcport.fcport, false);
+			break;
 		}
 		if (e->flags & QLA_EVT_FLAG_FREE)
 			kfree(e);
@@ -5090,7 +5096,7 @@ int qla24xx_post_relogin_work(struct scsi_qla_host *vha)
 void qla2x00_relogin(struct scsi_qla_host *vha)
 {
 	fc_port_t       *fcport;
-	int status;
+	int status, relogin_needed = 0;
 	struct event_arg ea;
 
 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
@@ -5099,47 +5105,59 @@ void qla2x00_relogin(struct scsi_qla_host *vha)
 		 * to it if we haven't run out of retries.
 		 */
 		if (atomic_read(&fcport->state) != FCS_ONLINE &&
-		    fcport->login_retry &&
-		    !(fcport->flags & (FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE))) {
-			if (vha->hw->current_topology != ISP_CFG_NL) {
-				ql_dbg(ql_dbg_disc, fcport->vha, 0x2108,
-				    "%s %8phC DS %d LS %d\n", __func__,
-				    fcport->port_name, fcport->disc_state,
-				    fcport->fw_login_state);
-				memset(&ea, 0, sizeof(ea));
-				ea.event = FCME_RELOGIN;
-				ea.fcport = fcport;
-				qla2x00_fcport_event_handler(vha, &ea);
-			} else if (vha->hw->current_topology == ISP_CFG_NL) {
-				fcport->login_retry--;
-				status = qla2x00_local_device_login(vha,
-								fcport);
-				if (status == QLA_SUCCESS) {
-					fcport->old_loop_id = fcport->loop_id;
-					ql_dbg(ql_dbg_disc, vha, 0x2003,
-					    "Port login OK: logged in ID 0x%x.\n",
-					    fcport->loop_id);
-					qla2x00_update_fcport(vha, fcport);
-				} else if (status == 1) {
-					set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
-					/* retry the login again */
-					ql_dbg(ql_dbg_disc, vha, 0x2007,
-					    "Retrying %d login again loop_id 0x%x.\n",
-					    fcport->login_retry,
-					    fcport->loop_id);
-				} else {
-					fcport->login_retry = 0;
-				}
+		    fcport->login_retry) {
+			if (fcport->scan_state != QLA_FCPORT_FOUND ||
+			    fcport->disc_state == DSC_LOGIN_COMPLETE)
+				continue;
+
+			if (fcport->flags & (FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE) ||
+				fcport->disc_state == DSC_DELETE_PEND) {
+				relogin_needed = 1;
+			} else {
+				if (vha->hw->current_topology != ISP_CFG_NL) {
+					memset(&ea, 0, sizeof(ea));
+					ea.event = FCME_RELOGIN;
+					ea.fcport = fcport;
+					qla2x00_fcport_event_handler(vha, &ea);
+				} else if (vha->hw->current_topology ==
+				    ISP_CFG_NL) {
+					fcport->login_retry--;
+					status =
+					    qla2x00_local_device_login(vha,
+						fcport);
+					if (status == QLA_SUCCESS) {
+						fcport->old_loop_id =
+						    fcport->loop_id;
+						ql_dbg(ql_dbg_disc, vha, 0x2003,
+						    "Port login OK: logged in ID 0x%x.\n",
+						    fcport->loop_id);
+						qla2x00_update_fcport
+							(vha, fcport);
+					} else if (status == 1) {
+						set_bit(RELOGIN_NEEDED,
+						    &vha->dpc_flags);
+						/* retry the login again */
+						ql_dbg(ql_dbg_disc, vha, 0x2007,
+						    "Retrying %d login again loop_id 0x%x.\n",
+						    fcport->login_retry,
+						    fcport->loop_id);
+					} else {
+						fcport->login_retry = 0;
+					}
 
-				if (fcport->login_retry == 0 &&
-				    status != QLA_SUCCESS)
-					qla2x00_clear_loop_id(fcport);
+					if (fcport->login_retry == 0 &&
+					    status != QLA_SUCCESS)
+						qla2x00_clear_loop_id(fcport);
+				}
 			}
 		}
 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
 			break;
 	}
 
+	if (relogin_needed)
+		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
+
 	ql_dbg(ql_dbg_disc, vha, 0x400e,
 	    "Relogin end.\n");
 }
@@ -6179,6 +6197,11 @@ intr_on_check:
 		if (!IS_QLAFX00(ha))
 			qla2x00_do_dpc_all_vps(base_vha);
 
+		if (test_and_clear_bit(N2N_LINK_RESET,
+			&base_vha->dpc_flags)) {
+			qla2x00_lip_reset(base_vha);
+		}
+
 		ha->dpc_active = 0;
 end_loop:
 		set_current_state(TASK_INTERRUPTIBLE);