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

Pull first round of SCSI updates from James Bottomley:
 "This is a large set of updates, mostly for drivers (qla2xxx [including
  support for new 83xx based card], qla4xxx, mpt2sas, bfa, zfcp, hpsa,
  be2iscsi, isci, lpfc, ipr, ibmvfc, ibmvscsi, megaraid_sas).

  There's also a rework for tape adding virtually unlimited numbers of
  tape drives plus a set of dif fixes for sd and a fix for a live lock
  on hot remove of SCSI devices.

  This round includes a signed tag pull of isci-for-3.6

  Signed-off-by: James Bottomley <JBottomley@Parallels.com>"

Fix up trivial conflict in drivers/scsi/qla2xxx/qla_nx.c due to new PCI
helper function use in a function that was removed by this pull.

* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (198 commits)
  [SCSI] st: remove st_mutex
  [SCSI] sd: Ensure we correctly disable devices with unknown protection type
  [SCSI] hpsa: gen8plus Smart Array IDs
  [SCSI] qla4xxx: Update driver version to 5.03.00-k1
  [SCSI] qla4xxx: Disable generating pause frames for ISP83XX
  [SCSI] qla4xxx: Fix double clearing of risc_intr for ISP83XX
  [SCSI] qla4xxx: IDC implementation for Loopback
  [SCSI] qla4xxx: update copyrights in LICENSE.qla4xxx
  [SCSI] qla4xxx: Fix panic while rmmod
  [SCSI] qla4xxx: Fail probe_adapter if IRQ allocation fails
  [SCSI] qla4xxx: Prevent MSI/MSI-X falling back to INTx for ISP82XX
  [SCSI] qla4xxx: Update idc reg in case of PCI AER
  [SCSI] qla4xxx: Fix double IDC locking in qla4_8xxx_error_recovery
  [SCSI] qla4xxx: Clear interrupt while unloading driver for ISP83XX
  [SCSI] qla4xxx: Print correct IDC version
  [SCSI] qla4xxx: Added new mbox cmd to pass driver version to FW
  [SCSI] scsi_dh_alua: Enable STPG for unavailable ports
  [SCSI] scsi_remove_target: fix softlockup regression on hot remove
  [SCSI] ibmvscsi: Fix host config length field overflow
  [SCSI] ibmvscsi: Remove backend abstraction
  ...

1 files changed, 83 insertions, 68 deletions

diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index 7cfdf2bd8edb..14cd361742fa 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -1,6 +1,6 @@
 /*
  * QLogic Fibre Channel HBA Driver
- * Copyright (c)  2003-2011 QLogic Corporation
+ * Copyright (c)  2003-2012 QLogic Corporation
  *
  * See LICENSE.qla2xxx for copyright and licensing details.
  */
@@ -1612,23 +1612,6 @@ qla82xx_get_fw_offs(struct qla_hw_data *ha)
 }
 
 /* PCI related functions */
-char *
-qla82xx_pci_info_str(struct scsi_qla_host *vha, char *str)
-{
-	struct qla_hw_data *ha = vha->hw;
-	char lwstr[6];
-	uint16_t lnk;
-
-	pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
-	ha->link_width = (lnk >> 4) & 0x3f;
-
-	strcpy(str, "PCIe (");
-	strcat(str, "2.5Gb/s ");
-	snprintf(lwstr, sizeof(lwstr), "x%d)", ha->link_width);
-	strcat(str, lwstr);
-	return str;
-}
-
 int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
 {
 	unsigned long val = 0;
@@ -2320,6 +2303,29 @@ void qla82xx_init_flags(struct qla_hw_data *ha)
 }
 
 inline void
+qla82xx_set_idc_version(scsi_qla_host_t *vha)
+{
+	int idc_ver;
+	uint32_t drv_active;
+	struct qla_hw_data *ha = vha->hw;
+
+	drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
+	if (drv_active == (QLA82XX_DRV_ACTIVE << (ha->portnum * 4))) {
+		qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
+		    QLA82XX_IDC_VERSION);
+		ql_log(ql_log_info, vha, 0xb082,
+		    "IDC version updated to %d\n", QLA82XX_IDC_VERSION);
+	} else {
+		idc_ver = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_IDC_VERSION);
+		if (idc_ver != QLA82XX_IDC_VERSION)
+			ql_log(ql_log_info, vha, 0xb083,
+			    "qla2xxx driver IDC version %d is not compatible "
+			    "with IDC version %d of the other drivers\n",
+			    QLA82XX_IDC_VERSION, idc_ver);
+	}
+}
+
+inline void
 qla82xx_set_drv_active(scsi_qla_host_t *vha)
 {
 	uint32_t drv_active;
@@ -2353,7 +2359,7 @@ qla82xx_need_reset(struct qla_hw_data *ha)
 	uint32_t drv_state;
 	int rval;
 
-	if (ha->flags.isp82xx_reset_owner)
+	if (ha->flags.nic_core_reset_owner)
 		return 1;
 	else {
 		drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
@@ -2860,7 +2866,7 @@ qla82xx_device_bootstrap(scsi_qla_host_t *vha)
 		timeout = msleep_interruptible(200);
 		if (timeout) {
 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-				QLA82XX_DEV_FAILED);
+				QLA8XXX_DEV_FAILED);
 			return QLA_FUNCTION_FAILED;
 		}
 
@@ -2891,10 +2897,7 @@ dev_initialize:
 	/* set to DEV_INITIALIZING */
 	ql_log(ql_log_info, vha, 0x009e,
 	    "HW State: INITIALIZING.\n");
-	qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
-
-	/* Driver that sets device state to initializating sets IDC version */
-	qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
+	qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
 
 	qla82xx_idc_unlock(ha);
 	rval = qla82xx_start_firmware(vha);
@@ -2904,14 +2907,14 @@ dev_initialize:
 		ql_log(ql_log_fatal, vha, 0x00ad,
 		    "HW State: FAILED.\n");
 		qla82xx_clear_drv_active(ha);
-		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
+		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_FAILED);
 		return rval;
 	}
 
 dev_ready:
 	ql_log(ql_log_info, vha, 0x00ae,
 	    "HW State: READY.\n");
-	qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
+	qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_READY);
 
 	return QLA_SUCCESS;
 }
@@ -2935,7 +2938,7 @@ qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
 
 	if (vha->flags.online) {
 		/*Block any further I/O and wait for pending cmnds to complete*/
-		qla82xx_quiescent_state_cleanup(vha);
+		qla2x00_quiesce_io(vha);
 	}
 
 	/* Set the quiescence ready bit */
@@ -2960,7 +2963,7 @@ qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
 			    "DRV_STATE:%d.\n", QLA2XXX_DRIVER_NAME,
 			    drv_active, drv_state);
 			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			    QLA82XX_DEV_READY);
+			    QLA8XXX_DEV_READY);
 			ql_log(ql_log_info, vha, 0xb025,
 			    "HW State: DEV_READY.\n");
 			qla82xx_idc_unlock(ha);
@@ -2981,10 +2984,10 @@ qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
 	}
 	dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
 	/* everyone acked so set the state to DEV_QUIESCENCE */
-	if (dev_state == QLA82XX_DEV_NEED_QUIESCENT) {
+	if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
 		ql_log(ql_log_info, vha, 0xb026,
 		    "HW State: DEV_QUIESCENT.\n");
-		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_QUIESCENT);
+		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_QUIESCENT);
 	}
 }
 
@@ -3014,8 +3017,8 @@ qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
 	return dev_state;
 }
 
-static void
-qla82xx_dev_failed_handler(scsi_qla_host_t *vha)
+void
+qla8xxx_dev_failed_handler(scsi_qla_host_t *vha)
 {
 	struct qla_hw_data *ha = vha->hw;
 
@@ -3023,9 +3026,10 @@ qla82xx_dev_failed_handler(scsi_qla_host_t *vha)
 	ql_log(ql_log_fatal, vha, 0x00b8,
 	    "Disabling the board.\n");
 
-	qla82xx_idc_lock(ha);
-	qla82xx_clear_drv_active(ha);
-	qla82xx_idc_unlock(ha);
+	if (IS_QLA82XX(ha)) {
+		qla82xx_clear_drv_active(ha);
+		qla82xx_idc_unlock(ha);
+	}
 
 	/* Set DEV_FAILED flag to disable timer */
 	vha->device_flags |= DFLG_DEV_FAILED;
@@ -3064,7 +3068,7 @@ qla82xx_need_reset_handler(scsi_qla_host_t *vha)
 	}
 
 	drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
-	if (!ha->flags.isp82xx_reset_owner) {
+	if (!ha->flags.nic_core_reset_owner) {
 		ql_dbg(ql_dbg_p3p, vha, 0xb028,
 		    "reset_acknowledged by 0x%x\n", ha->portnum);
 		qla82xx_set_rst_ready(ha);
@@ -3076,7 +3080,7 @@ qla82xx_need_reset_handler(scsi_qla_host_t *vha)
 	}
 
 	/* wait for 10 seconds for reset ack from all functions */
-	reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
+	reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
 
 	drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
 	drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
@@ -3088,7 +3092,7 @@ qla82xx_need_reset_handler(scsi_qla_host_t *vha)
 	    drv_state, drv_active, dev_state, active_mask);
 
 	while (drv_state != drv_active &&
-	    dev_state != QLA82XX_DEV_INITIALIZING) {
+	    dev_state != QLA8XXX_DEV_INITIALIZING) {
 		if (time_after_eq(jiffies, reset_timeout)) {
 			ql_log(ql_log_warn, vha, 0x00b5,
 			    "Reset timeout.\n");
@@ -3099,7 +3103,7 @@ qla82xx_need_reset_handler(scsi_qla_host_t *vha)
 		qla82xx_idc_lock(ha);
 		drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
 		drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
-		if (ha->flags.isp82xx_reset_owner)
+		if (ha->flags.nic_core_reset_owner)
 			drv_active &= active_mask;
 		dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
 	}
@@ -3115,11 +3119,11 @@ qla82xx_need_reset_handler(scsi_qla_host_t *vha)
 	    dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
 
 	/* Force to DEV_COLD unless someone else is starting a reset */
-	if (dev_state != QLA82XX_DEV_INITIALIZING &&
-	    dev_state != QLA82XX_DEV_COLD) {
+	if (dev_state != QLA8XXX_DEV_INITIALIZING &&
+	    dev_state != QLA8XXX_DEV_COLD) {
 		ql_log(ql_log_info, vha, 0x00b7,
 		    "HW State: COLD/RE-INIT.\n");
-		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
+		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_COLD);
 		qla82xx_set_rst_ready(ha);
 		if (ql2xmdenable) {
 			if (qla82xx_md_collect(vha))
@@ -3226,8 +3230,10 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
 	int loopcount = 0;
 
 	qla82xx_idc_lock(ha);
-	if (!vha->flags.init_done)
+	if (!vha->flags.init_done) {
 		qla82xx_set_drv_active(vha);
+		qla82xx_set_idc_version(vha);
+	}
 
 	dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
 	old_dev_state = dev_state;
@@ -3237,7 +3243,7 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
 	    dev_state < MAX_STATES ? qdev_state(dev_state) : "Unknown");
 
 	/* wait for 30 seconds for device to go ready */
-	dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
+	dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
 
 	while (1) {
 
@@ -3261,18 +3267,18 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
 		}
 
 		switch (dev_state) {
-		case QLA82XX_DEV_READY:
-			ha->flags.isp82xx_reset_owner = 0;
-			goto exit;
-		case QLA82XX_DEV_COLD:
+		case QLA8XXX_DEV_READY:
+			ha->flags.nic_core_reset_owner = 0;
+			goto rel_lock;
+		case QLA8XXX_DEV_COLD:
 			rval = qla82xx_device_bootstrap(vha);
 			break;
-		case QLA82XX_DEV_INITIALIZING:
+		case QLA8XXX_DEV_INITIALIZING:
 			qla82xx_idc_unlock(ha);
 			msleep(1000);
 			qla82xx_idc_lock(ha);
 			break;
-		case QLA82XX_DEV_NEED_RESET:
+		case QLA8XXX_DEV_NEED_RESET:
 			if (!ql2xdontresethba)
 				qla82xx_need_reset_handler(vha);
 			else {
@@ -3281,31 +3287,31 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
 				qla82xx_idc_lock(ha);
 			}
 			dev_init_timeout = jiffies +
-			    (ha->nx_dev_init_timeout * HZ);
+			    (ha->fcoe_dev_init_timeout * HZ);
 			break;
-		case QLA82XX_DEV_NEED_QUIESCENT:
+		case QLA8XXX_DEV_NEED_QUIESCENT:
 			qla82xx_need_qsnt_handler(vha);
 			/* Reset timeout value after quiescence handler */
-			dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
+			dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
 							 * HZ);
 			break;
-		case QLA82XX_DEV_QUIESCENT:
+		case QLA8XXX_DEV_QUIESCENT:
 			/* Owner will exit and other will wait for the state
 			 * to get changed
 			 */
 			if (ha->flags.quiesce_owner)
-				goto exit;
+				goto rel_lock;
 
 			qla82xx_idc_unlock(ha);
 			msleep(1000);
 			qla82xx_idc_lock(ha);
 
 			/* Reset timeout value after quiescence handler */
-			dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
+			dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout\
 							 * HZ);
 			break;
-		case QLA82XX_DEV_FAILED:
-			qla82xx_dev_failed_handler(vha);
+		case QLA8XXX_DEV_FAILED:
+			qla8xxx_dev_failed_handler(vha);
 			rval = QLA_FUNCTION_FAILED;
 			goto exit;
 		default:
@@ -3315,8 +3321,9 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
 		}
 		loopcount++;
 	}
-exit:
+rel_lock:
 	qla82xx_idc_unlock(ha);
+exit:
 	return rval;
 }
 
@@ -3364,22 +3371,30 @@ void qla82xx_watchdog(scsi_qla_host_t *vha)
 	struct qla_hw_data *ha = vha->hw;
 
 	/* don't poll if reset is going on */
-	if (!ha->flags.isp82xx_reset_hdlr_active) {
+	if (!ha->flags.nic_core_reset_hdlr_active) {
 		dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
 		if (qla82xx_check_temp(vha)) {
 			set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
 			ha->flags.isp82xx_fw_hung = 1;
 			qla82xx_clear_pending_mbx(vha);
-		} else if (dev_state == QLA82XX_DEV_NEED_RESET &&
+		} else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
 		    !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
 			ql_log(ql_log_warn, vha, 0x6001,
 			    "Adapter reset needed.\n");
 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
-		} else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
+		} else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
 			!test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
 			ql_log(ql_log_warn, vha, 0x6002,
 			    "Quiescent needed.\n");
 			set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
+		} else if (dev_state == QLA8XXX_DEV_FAILED &&
+			!test_bit(ISP_UNRECOVERABLE, &vha->dpc_flags) &&
+			vha->flags.online == 1) {
+			ql_log(ql_log_warn, vha, 0xb055,
+			    "Adapter state is failed. Offlining.\n");
+			set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
+			ha->flags.isp82xx_fw_hung = 1;
+			qla82xx_clear_pending_mbx(vha);
 		} else {
 			if (qla82xx_check_fw_alive(vha)) {
 				ql_dbg(ql_dbg_timer, vha, 0x6011,
@@ -3441,12 +3456,12 @@ qla82xx_set_reset_owner(scsi_qla_host_t *vha)
 	uint32_t dev_state;
 
 	dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
-	if (dev_state == QLA82XX_DEV_READY) {
+	if (dev_state == QLA8XXX_DEV_READY) {
 		ql_log(ql_log_info, vha, 0xb02f,
 		    "HW State: NEED RESET\n");
 		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			QLA82XX_DEV_NEED_RESET);
-		ha->flags.isp82xx_reset_owner = 1;
+			QLA8XXX_DEV_NEED_RESET);
+		ha->flags.nic_core_reset_owner = 1;
 		ql_dbg(ql_dbg_p3p, vha, 0xb030,
 		    "reset_owner is 0x%x\n", ha->portnum);
 	} else
@@ -3477,7 +3492,7 @@ qla82xx_abort_isp(scsi_qla_host_t *vha)
 		    "Device in failed state, exiting.\n");
 		return QLA_SUCCESS;
 	}
-	ha->flags.isp82xx_reset_hdlr_active = 1;
+	ha->flags.nic_core_reset_hdlr_active = 1;
 
 	qla82xx_idc_lock(ha);
 	qla82xx_set_reset_owner(vha);
@@ -3491,7 +3506,7 @@ qla82xx_abort_isp(scsi_qla_host_t *vha)
 
 	if (rval == QLA_SUCCESS) {
 		ha->flags.isp82xx_fw_hung = 0;
-		ha->flags.isp82xx_reset_hdlr_active = 0;
+		ha->flags.nic_core_reset_hdlr_active = 0;
 		qla82xx_restart_isp(vha);
 	}
 
@@ -4026,7 +4041,7 @@ qla82xx_minidump_process_rdmem(scsi_qla_host_t *vha,
 
 	if (r_addr & 0xf) {
 		ql_log(ql_log_warn, vha, 0xb033,
-		    "Read addr 0x%x not 16 bytes alligned\n", r_addr);
+		    "Read addr 0x%x not 16 bytes aligned\n", r_addr);
 		return rval;
 	}