1 files changed, 90 insertions, 55 deletions

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 23d095d3817..2d720121a0d 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1,20 +1,8 @@
 /*
- *                  QLOGIC LINUX SOFTWARE
- *
- * QLogic ISP2x00 device driver for Linux 2.6.x
- * Copyright (C) 2003-2005 QLogic Corporation
- * (www.qlogic.com)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * QLogic Fibre Channel HBA Driver
+ * Copyright (c)  2003-2005 QLogic Corporation
  *
+ * See LICENSE.qla2xxx for copyright and licensing details.
  */
 #include "qla_def.h"
 
@@ -159,8 +147,8 @@ check_fw_ready_again:
 					 * LIP to complete
 					 */
 
-					if (atomic_read(&ha->loop_state) ==
-					    LOOP_DOWN && retry--) {
+					if (atomic_read(&ha->loop_state) !=
+					    LOOP_READY && retry--) {
 						goto check_fw_ready_again;
 					}
 					wait_time--;
@@ -579,6 +567,7 @@ qla24xx_reset_risc(scsi_qla_host_t *ha)
 	unsigned long flags = 0;
 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 	uint32_t cnt, d2;
+	uint16_t wd;
 
 	spin_lock_irqsave(&ha->hardware_lock, flags);
 
@@ -593,10 +582,10 @@ qla24xx_reset_risc(scsi_qla_host_t *ha)
 
 	WRT_REG_DWORD(&reg->ctrl_status,
 	    CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
-	RD_REG_DWORD(&reg->ctrl_status);
+	pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
 
+	udelay(100);
 	/* Wait for firmware to complete NVRAM accesses. */
-	udelay(5);
 	d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
 	for (cnt = 10000 ; cnt && d2; cnt--) {
 		udelay(5);
@@ -604,7 +593,7 @@ qla24xx_reset_risc(scsi_qla_host_t *ha)
 		barrier();
 	}
 
-	udelay(20);
+	/* Wait for soft-reset to complete. */
 	d2 = RD_REG_DWORD(&reg->ctrl_status);
 	for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
 		udelay(5);
@@ -1270,9 +1259,15 @@ qla2x00_configure_hba(scsi_qla_host_t *ha)
 	rval = qla2x00_get_adapter_id(ha,
 	    &loop_id, &al_pa, &area, &domain, &topo);
 	if (rval != QLA_SUCCESS) {
-		qla_printk(KERN_WARNING, ha,
-		    "ERROR -- Unable to get host loop ID.\n");
-		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+		if (LOOP_NOT_READY(ha) || atomic_read(&ha->loop_down_timer) ||
+		    (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
+			DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
+			    __func__, ha->host_no));
+		} else {
+			qla_printk(KERN_WARNING, ha,
+			    "ERROR -- Unable to get host loop ID.\n");
+			set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+		}
 		return (rval);
 	}
 
@@ -1372,7 +1367,6 @@ qla2x00_nvram_config(scsi_qla_host_t *ha)
 	nvram_t         *nv = (nvram_t *)ha->request_ring;
 	uint8_t         *ptr = (uint8_t *)ha->request_ring;
 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
-	uint8_t         timer_mode;
 
 	rval = QLA_SUCCESS;
 
@@ -1650,22 +1644,26 @@ qla2x00_nvram_config(scsi_qla_host_t *ha)
 
 		ha->flags.process_response_queue = 1;
 	} else {
-		/* Enable ZIO -- Support mode 5 only. */
-		timer_mode = icb->add_firmware_options[0] &
-		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
+		/* Enable ZIO. */
+		if (!ha->flags.init_done) {
+			ha->zio_mode = icb->add_firmware_options[0] &
+			    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
+			ha->zio_timer = icb->interrupt_delay_timer ?
+			    icb->interrupt_delay_timer: 2;
+		}
 		icb->add_firmware_options[0] &=
 		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
-		if (ql2xenablezio)
-			timer_mode = BIT_2 | BIT_0;
-		if (timer_mode == (BIT_2 | BIT_0)) {
-			DEBUG2(printk("scsi(%ld): ZIO enabled; timer delay "
-			    "(%d).\n", ha->host_no, ql2xintrdelaytimer));
+		ha->flags.process_response_queue = 0;
+		if (ha->zio_mode != QLA_ZIO_DISABLED) {
+			DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
+			    "delay (%d us).\n", ha->host_no, ha->zio_mode,
+			    ha->zio_timer * 100));
 			qla_printk(KERN_INFO, ha,
-			    "ZIO enabled; timer delay (%d).\n",
-			    ql2xintrdelaytimer);
+			    "ZIO mode %d enabled; timer delay (%d us).\n",
+			    ha->zio_mode, ha->zio_timer * 100);
 
-			icb->add_firmware_options[0] |= timer_mode;
-			icb->interrupt_delay_timer = ql2xintrdelaytimer;
+			icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
+			icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
 			ha->flags.process_response_queue = 1;
 		}
 	}
@@ -1677,6 +1675,24 @@ qla2x00_nvram_config(scsi_qla_host_t *ha)
 	return (rval);
 }
 
+static void
+qla2x00_rport_add(void *data)
+{
+	fc_port_t *fcport = data;
+
+	qla2x00_reg_remote_port(fcport->ha, fcport);
+}
+
+static void
+qla2x00_rport_del(void *data)
+{
+	fc_port_t *fcport = data;
+
+	if (fcport->rport)
+		fc_remote_port_delete(fcport->rport);
+	fcport->rport = NULL;
+}
+
 /**
  * qla2x00_alloc_fcport() - Allocate a generic fcport.
  * @ha: HA context
@@ -1685,7 +1701,7 @@ qla2x00_nvram_config(scsi_qla_host_t *ha)
  * Returns a pointer to the allocated fcport, or NULL, if none available.
  */
 fc_port_t *
-qla2x00_alloc_fcport(scsi_qla_host_t *ha, int flags)
+qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
 {
 	fc_port_t *fcport;
 
@@ -1702,6 +1718,8 @@ qla2x00_alloc_fcport(scsi_qla_host_t *ha, int flags)
 	atomic_set(&fcport->state, FCS_UNCONFIGURED);
 	fcport->flags = FCF_RLC_SUPPORT;
 	fcport->supported_classes = FC_COS_UNSPECIFIED;
+	INIT_WORK(&fcport->rport_add_work, qla2x00_rport_add, fcport);
+	INIT_WORK(&fcport->rport_del_work, qla2x00_rport_del, fcport);
 
 	return (fcport);
 }
@@ -1778,7 +1796,7 @@ qla2x00_configure_loop(scsi_qla_host_t *ha)
 	}
 
 	if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
-		if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
+		if (LOOP_NOT_READY(ha)) {
 			rval = QLA_FUNCTION_FAILED;
 		} else {
 			rval = qla2x00_configure_fabric(ha);
@@ -1966,8 +1984,7 @@ qla2x00_configure_local_loop(scsi_qla_host_t *ha)
 	}
 
 cleanup_allocation:
-	if (new_fcport)
-		kfree(new_fcport);
+	kfree(new_fcport);
 
 	if (rval != QLA_SUCCESS) {
 		DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
@@ -2065,8 +2082,8 @@ qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
 	struct fc_rport *rport;
 
 	if (fcport->rport) {
-		fc_remote_port_unblock(fcport->rport);
-		return;
+		fc_remote_port_delete(fcport->rport);
+		fcport->rport = NULL;
 	}
 
 	rport_ids.node_name = wwn_to_u64(fcport->node_name);
@@ -2080,7 +2097,7 @@ qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
 		    "Unable to allocate fc remote port!\n");
 		return;
 	}
-	rport->dd_data = fcport;
+	*((fc_port_t **)rport->dd_data) = fcport;
 	rport->supported_classes = fcport->supported_classes;
 
 	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
@@ -2337,8 +2354,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
 	/* Allocate temporary fcport for any new fcports discovered. */
 	new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
 	if (new_fcport == NULL) {
-		if (swl)
-			kfree(swl);
+		kfree(swl);
 		return (QLA_MEMORY_ALLOC_FAILED);
 	}
 	new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
@@ -2353,8 +2369,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
 		if (qla2x00_is_reserved_id(ha, loop_id))
 			continue;
 
-		if (atomic_read(&ha->loop_down_timer) ||
-		    test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
+		if (atomic_read(&ha->loop_down_timer) || LOOP_NOT_READY(ha))
 			break;
 
 		if (swl != NULL) {
@@ -2474,19 +2489,15 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
 		nxt_d_id.b24 = new_fcport->d_id.b24;
 		new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
 		if (new_fcport == NULL) {
-			if (swl)
-				kfree(swl);
+			kfree(swl);
 			return (QLA_MEMORY_ALLOC_FAILED);
 		}
 		new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
 		new_fcport->d_id.b24 = nxt_d_id.b24;
 	}
 
-	if (swl)
-		kfree(swl);
-
-	if (new_fcport)
-		kfree(new_fcport);
+	kfree(swl);
+	kfree(new_fcport);
 
 	if (!list_empty(new_fcports))
 		ha->device_flags |= DFLG_FABRIC_DEVICES;
@@ -2858,7 +2869,7 @@ qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
 			    fcport->d_id.b.domain, fcport->d_id.b.area,
 			    fcport->d_id.b.al_pa);
 			fcport->loop_id = FC_NO_LOOP_ID;
-			atomic_set(&fcport->state, FCS_DEVICE_DEAD);
+			fcport->login_retry = 0;
 
 			rval = 3;
 			break;
@@ -3442,6 +3453,30 @@ qla24xx_nvram_config(scsi_qla_host_t *ha)
 	if (ql2xloginretrycount)
 		ha->login_retry_count = ql2xloginretrycount;
 
+	/* Enable ZIO. */
+	if (!ha->flags.init_done) {
+		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
+		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
+		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
+		    le16_to_cpu(icb->interrupt_delay_timer): 2;
+	}
+	icb->firmware_options_2 &= __constant_cpu_to_le32(
+	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
+	ha->flags.process_response_queue = 0;
+	if (ha->zio_mode != QLA_ZIO_DISABLED) {
+		DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
+		    "(%d us).\n", ha->host_no, ha->zio_mode,
+		    ha->zio_timer * 100));
+		qla_printk(KERN_INFO, ha,
+		    "ZIO mode %d enabled; timer delay (%d us).\n",
+		    ha->zio_mode, ha->zio_timer * 100);
+
+		icb->firmware_options_2 |= cpu_to_le32(
+		    (uint32_t)ha->zio_mode);
+		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
+		ha->flags.process_response_queue = 1;
+	}
+
 	if (rval) {
 		DEBUG2_3(printk(KERN_WARNING
 		    "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));