Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 1464 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
new file mode 100644
index 0000000..603d4c6
--- /dev/null
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -0,0 +1,1464 @@
+/*
+ *                  QLOGIC LINUX SOFTWARE
+ *
+ * QLogic ISP2x00 device driver for Linux 2.6.x
+ * Copyright (C) 2003-2004 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.
+ *
+ */
+#include "qla_def.h"
+
+static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
+static void qla2x00_async_event(scsi_qla_host_t *, uint32_t);
+static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t);
+void qla2x00_process_response_queue(struct scsi_qla_host *);
+static void qla2x00_status_entry(scsi_qla_host_t *, sts_entry_t *);
+static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *);
+static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *);
+static void qla2x00_ms_entry(scsi_qla_host_t *, ms_iocb_entry_t *);
+
+static int qla2x00_check_sense(struct scsi_cmnd *cp, os_lun_t *);
+
+/**
+ * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
+ * @irq:
+ * @dev_id: SCSI driver HA context
+ * @regs:
+ *
+ * Called by system whenever the host adapter generates an interrupt.
+ *
+ * Returns handled flag.
+ */
+irqreturn_t
+qla2100_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+	scsi_qla_host_t	*ha;
+	device_reg_t __iomem *reg;
+	int		status;
+	unsigned long	flags;
+	unsigned long	iter;
+	uint32_t	mbx;
+
+	ha = (scsi_qla_host_t *) dev_id;
+	if (!ha) {
+		printk(KERN_INFO
+		    "%s(): NULL host pointer\n", __func__);
+		return (IRQ_NONE);
+	}
+
+	reg = ha->iobase;
+	status = 0;
+
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+	for (iter = 50; iter--; ) {
+		if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
+			break;
+
+		if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
+			WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
+			RD_REG_WORD(&reg->hccr);
+
+			/* Get mailbox data. */
+			mbx = RD_MAILBOX_REG(ha, reg, 0);
+			if (mbx > 0x3fff && mbx < 0x8000) {
+				qla2x00_mbx_completion(ha, (uint16_t)mbx);
+				status |= MBX_INTERRUPT;
+			} else if (mbx > 0x7fff && mbx < 0xc000) {
+				qla2x00_async_event(ha, mbx);
+			} else {
+				/*EMPTY*/
+				DEBUG2(printk("scsi(%ld): Unrecognized "
+				    "interrupt type (%d)\n",
+				    ha->host_no, mbx));
+			}
+			/* Release mailbox registers. */
+			WRT_REG_WORD(&reg->semaphore, 0);
+			RD_REG_WORD(&reg->semaphore);
+		} else {
+			qla2x00_process_response_queue(ha);
+
+			WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
+			RD_REG_WORD(&reg->hccr);
+		}
+	}
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	qla2x00_next(ha);
+	ha->last_irq_cpu = _smp_processor_id();
+	ha->total_isr_cnt++;
+
+	if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
+	    (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
+		spin_lock_irqsave(&ha->mbx_reg_lock, flags);
+
+		set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
+		up(&ha->mbx_intr_sem);
+
+		spin_unlock_irqrestore(&ha->mbx_reg_lock, flags);
+	}
+
+	if (!list_empty(&ha->done_queue))
+		qla2x00_done(ha);
+
+	return (IRQ_HANDLED);
+}
+
+/**
+ * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
+ * @irq:
+ * @dev_id: SCSI driver HA context
+ * @regs:
+ *
+ * Called by system whenever the host adapter generates an interrupt.
+ *
+ * Returns handled flag.
+ */
+irqreturn_t
+qla2300_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+	scsi_qla_host_t	*ha;
+	device_reg_t __iomem *reg;
+	int		status;
+	unsigned long	flags;
+	unsigned long	iter;
+	uint32_t	stat;
+	uint32_t	mbx;
+	uint16_t	hccr;
+
+	ha = (scsi_qla_host_t *) dev_id;
+	if (!ha) {
+		printk(KERN_INFO
+		    "%s(): NULL host pointer\n", __func__);
+		return (IRQ_NONE);
+	}
+
+	reg = ha->iobase;
+	status = 0;
+
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+	for (iter = 50; iter--; ) {
+		stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
+		if (stat & HSR_RISC_PAUSED) {
+			hccr = RD_REG_WORD(&reg->hccr);
+			if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
+				qla_printk(KERN_INFO, ha,
+				    "Parity error -- HCCR=%x.\n", hccr);
+			else
+				qla_printk(KERN_INFO, ha,
+				    "RISC paused -- HCCR=%x\n", hccr);
+
+			/*
+			 * Issue a "HARD" reset in order for the RISC
+			 * interrupt bit to be cleared.  Schedule a big
+			 * hammmer to get out of the RISC PAUSED state.
+			 */
+			WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
+			RD_REG_WORD(&reg->hccr);
+			set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+			break;
+		} else if ((stat & HSR_RISC_INT) == 0)
+			break;
+
+		mbx = MSW(stat);
+		switch (stat & 0xff) {
+		case 0x13:
+			qla2x00_process_response_queue(ha);
+			break;
+		case 0x1:
+		case 0x2:
+		case 0x10:
+		case 0x11:
+			qla2x00_mbx_completion(ha, (uint16_t)mbx);
+			status |= MBX_INTERRUPT;
+
+			/* Release mailbox registers. */
+			WRT_REG_WORD(&reg->semaphore, 0);
+			break;
+		case 0x12:
+			qla2x00_async_event(ha, mbx);
+			break;
+		case 0x15:
+			mbx = mbx << 16 | MBA_CMPLT_1_16BIT;
+			qla2x00_async_event(ha, mbx);
+			break;
+		case 0x16:
+			mbx = mbx << 16 | MBA_SCSI_COMPLETION;
+			qla2x00_async_event(ha, mbx);
+			break;
+		default:
+			DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
+			    "(%d)\n",
+			    ha->host_no, stat & 0xff));
+			break;
+		}
+		WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
+		RD_REG_WORD_RELAXED(&reg->hccr);
+	}
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	qla2x00_next(ha);
+	ha->last_irq_cpu = _smp_processor_id();
+	ha->total_isr_cnt++;
+
+	if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
+	    (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
+		spin_lock_irqsave(&ha->mbx_reg_lock, flags);
+
+		set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
+		up(&ha->mbx_intr_sem);
+
+		spin_unlock_irqrestore(&ha->mbx_reg_lock, flags);
+	}
+
+	if (!list_empty(&ha->done_queue))
+		qla2x00_done(ha);
+
+	return (IRQ_HANDLED);
+}
+
+/**
+ * qla2x00_mbx_completion() - Process mailbox command completions.
+ * @ha: SCSI driver HA context
+ * @mb0: Mailbox0 register
+ */
+static void
+qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0)
+{
+	uint16_t	cnt;
+	uint16_t __iomem *wptr;
+	device_reg_t __iomem *reg = ha->iobase;
+
+	/* Load return mailbox registers. */
+	ha->flags.mbox_int = 1;
+	ha->mailbox_out[0] = mb0;
+	wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
+
+	for (cnt = 1; cnt < ha->mbx_count; cnt++) {
+		if (IS_QLA2200(ha) && cnt == 8) 
+			wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
+		if (cnt == 4 || cnt == 5)
+			ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
+		else
+			ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
+	
+		wptr++;
+	}
+
+	if (ha->mcp) {
+		DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
+		    __func__, ha->host_no, ha->mcp->mb[0]));
+	} else {
+		DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
+		    __func__, ha->host_no));
+	}
+}
+
+/**
+ * qla2x00_async_event() - Process aynchronous events.
+ * @ha: SCSI driver HA context
+ * @mb0: Mailbox0 register
+ */
+static void
+qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx)
+{
+	static char	*link_speeds[5] = { "1", "2", "4", "?", "10" };
+	char		*link_speed;
+	uint16_t	mb[4];
+	uint16_t	handle_cnt;
+	uint16_t	cnt;
+	uint32_t	handles[5];
+	device_reg_t __iomem *reg = ha->iobase;
+	uint32_t	rscn_entry, host_pid;
+	uint8_t		rscn_queue_index;
+
+	/* Setup to process RIO completion. */
+	handle_cnt = 0;
+	mb[0] = LSW(mbx);
+	switch (mb[0]) {
+	case MBA_SCSI_COMPLETION:
+		if (IS_QLA2100(ha) || IS_QLA2200(ha))
+			handles[0] = le32_to_cpu(
+			    ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
+			    RD_MAILBOX_REG(ha, reg, 1));
+		else
+			handles[0] = le32_to_cpu(
+			    ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
+			    MSW(mbx));
+		handle_cnt = 1;
+		break;
+	case MBA_CMPLT_1_16BIT:
+		if (IS_QLA2100(ha) || IS_QLA2200(ha))
+			handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
+		else
+			handles[0] = MSW(mbx);
+		handle_cnt = 1;
+		mb[0] = MBA_SCSI_COMPLETION;
+		break;
+	case MBA_CMPLT_2_16BIT:
+		handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
+		handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
+		handle_cnt = 2;
+		mb[0] = MBA_SCSI_COMPLETION;
+		break;
+	case MBA_CMPLT_3_16BIT:
+		handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
+		handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
+		handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
+		handle_cnt = 3;
+		mb[0] = MBA_SCSI_COMPLETION;
+		break;
+	case MBA_CMPLT_4_16BIT:
+		handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
+		handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
+		handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
+		handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
+		handle_cnt = 4;
+		mb[0] = MBA_SCSI_COMPLETION;
+		break;
+	case MBA_CMPLT_5_16BIT:
+		handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
+		handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
+		handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
+		handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
+		handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
+		handle_cnt = 5;
+		mb[0] = MBA_SCSI_COMPLETION;
+		break;
+	case MBA_CMPLT_2_32BIT:
+		handles[0] = le32_to_cpu(
+		    ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
+		    RD_MAILBOX_REG(ha, reg, 1));
+		handles[1] = le32_to_cpu(
+		    ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
+		    RD_MAILBOX_REG(ha, reg, 6));
+		handle_cnt = 2;
+		mb[0] = MBA_SCSI_COMPLETION;
+		break;
+	default:
+		break;
+	}
+
+	switch (mb[0]) {
+	case MBA_SCSI_COMPLETION:	/* Fast Post */
+		if (!ha->flags.online)
+			break;
+
+		for (cnt = 0; cnt < handle_cnt; cnt++)
+			qla2x00_process_completed_request(ha, handles[cnt]);
+		break;
+
+	case MBA_RESET:			/* Reset */
+		DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no));
+
+		set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
+		break;
+
+	case MBA_SYSTEM_ERR:		/* System Error */
+		mb[1] = RD_MAILBOX_REG(ha, reg, 1);
+		mb[2] = RD_MAILBOX_REG(ha, reg, 2);
+		mb[3] = RD_MAILBOX_REG(ha, reg, 3);
+
+		qla_printk(KERN_INFO, ha,
+		    "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
+		    mb[1], mb[2], mb[3]);
+
+		if (IS_QLA2100(ha) || IS_QLA2200(ha))
+			qla2100_fw_dump(ha, 1);
+		else
+	    		qla2300_fw_dump(ha, 1);
+
+		if (mb[1] == 0) {
+			qla_printk(KERN_INFO, ha,
+			    "Unrecoverable Hardware Error: adapter marked "
+			    "OFFLINE!\n");
+			ha->flags.online = 0;
+		} else
+			set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+		break;
+
+	case MBA_REQ_TRANSFER_ERR:	/* Request Transfer Error */
+		DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
+		    ha->host_no));
+		qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n");
+
+		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+		break;
+
+	case MBA_RSP_TRANSFER_ERR:	/* Response Transfer Error */
+		DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
+		    ha->host_no));
+		qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
+
+		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+		break;
+
+	case MBA_WAKEUP_THRES:		/* Request Queue Wake-up */
+		DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
+		    ha->host_no));
+		break;
+
+	case MBA_LIP_OCCURRED:		/* Loop Initialization Procedure */
+		mb[1] = RD_MAILBOX_REG(ha, reg, 1);
+
+		DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no,
+		    mb[1]));
+		qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]);
+
+		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
+			atomic_set(&ha->loop_state, LOOP_DOWN);
+			atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
+			qla2x00_mark_all_devices_lost(ha);
+		}
+
+		set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
+
+		ha->flags.management_server_logged_in = 0;
+
+		/* Update AEN queue. */
+		qla2x00_enqueue_aen(ha, MBA_LIP_OCCURRED, NULL);
+
+		ha->total_lip_cnt++;
+		break;
+
+	case MBA_LOOP_UP:		/* Loop Up Event */
+		mb[1] = RD_MAILBOX_REG(ha, reg, 1);
+
+		ha->link_data_rate = 0;
+		if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
+			link_speed = link_speeds[0];
+		} else {
+			link_speed = link_speeds[3];
+			if (mb[1] < 5)
+				link_speed = link_speeds[mb[1]];
+			ha->link_data_rate = mb[1];
+		}
+
+		DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
+		    ha->host_no, link_speed));
+		qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
+		    link_speed);
+
+		ha->flags.management_server_logged_in = 0;
+
+		/* Update AEN queue. */
+		qla2x00_enqueue_aen(ha, MBA_LOOP_UP, NULL);
+		break;
+
+	case MBA_LOOP_DOWN:		/* Loop Down Event */
+		DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN.\n",
+		    ha->host_no));
+		qla_printk(KERN_INFO, ha, "LOOP DOWN detected.\n");
+
+		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
+			atomic_set(&ha->loop_state, LOOP_DOWN);
+			atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
+			ha->device_flags |= DFLG_NO_CABLE;
+			qla2x00_mark_all_devices_lost(ha);
+		}
+
+		ha->flags.management_server_logged_in = 0;
+		ha->link_data_rate = 0;
+
+		/* Update AEN queue. */
+		qla2x00_enqueue_aen(ha, MBA_LOOP_DOWN, NULL);
+		break;
+
+	case MBA_LIP_RESET:		/* LIP reset occurred */
+		mb[1] = RD_MAILBOX_REG(ha, reg, 1);
+
+		DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
+		    ha->host_no, mb[1]));
+		qla_printk(KERN_INFO, ha,
+		    "LIP reset occured (%x).\n", mb[1]);
+
+		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
+			atomic_set(&ha->loop_state, LOOP_DOWN);
+			atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
+			qla2x00_mark_all_devices_lost(ha);
+		}
+
+		set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
+
+		ha->operating_mode = LOOP;
+		ha->flags.management_server_logged_in = 0;
+
+		/* Update AEN queue. */
+		qla2x00_enqueue_aen(ha, MBA_LIP_RESET, NULL);
+
+		ha->total_lip_cnt++;
+		break;
+
+	case MBA_POINT_TO_POINT:	/* Point-to-Point */
+		if (IS_QLA2100(ha))
+			break;
+
+		DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
+		    ha->host_no));
+
+		/*
+		 * Until there's a transition from loop down to loop up, treat
+		 * this as loop down only.
+		 */
+		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
+			atomic_set(&ha->loop_state, LOOP_DOWN);
+			if (!atomic_read(&ha->loop_down_timer))
+				atomic_set(&ha->loop_down_timer,
+				    LOOP_DOWN_TIME);
+			qla2x00_mark_all_devices_lost(ha);
+		}
+
+		if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
+			set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
+		}
+		set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
+		break;
+
+	case MBA_CHG_IN_CONNECTION:	/* Change in connection mode */
+		if (IS_QLA2100(ha))
+			break;
+
+		mb[1] = RD_MAILBOX_REG(ha, reg, 1);
+
+		DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
+		    "received.\n",
+		    ha->host_no));
+		qla_printk(KERN_INFO, ha,
+		    "Configuration change detected: value=%x.\n", mb[1]);
+
+		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
+			atomic_set(&ha->loop_state, LOOP_DOWN);  
+			if (!atomic_read(&ha->loop_down_timer))
+				atomic_set(&ha->loop_down_timer,
+				    LOOP_DOWN_TIME);
+			qla2x00_mark_all_devices_lost(ha);
+		}
+
+		set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
+		set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
+		break;
+
+	case MBA_PORT_UPDATE:		/* Port database update */
+		mb[1] = RD_MAILBOX_REG(ha, reg, 1);
+		mb[2] = RD_MAILBOX_REG(ha, reg, 2);
+
+		/*
+		 * If a single remote port just logged into (or logged out of)
+		 * us, create a new entry in our rscn fcports list and handle
+		 * the event like an RSCN.
+		 */
+		if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA6312(ha) &&
+		    !IS_QLA6322(ha) && ha->flags.init_done && mb[1] != 0xffff &&
+		    ((ha->operating_mode == P2P && mb[1] != 0) ||
+		    (ha->operating_mode != P2P && mb[1] !=
+			SNS_FIRST_LOOP_ID)) && (mb[2] == 6 || mb[2] == 7)) {
+			int rval;
+			fc_port_t *rscn_fcport;
+
+			/* Create new fcport for login. */
+			rscn_fcport = qla2x00_alloc_rscn_fcport(ha, GFP_ATOMIC);
+			if (rscn_fcport) {
+				DEBUG14(printk("scsi(%ld): Port Update -- "
+				    "creating RSCN fcport %p for %x/%x.\n",
+				    ha->host_no, rscn_fcport, mb[1], mb[2]));
+
+				rscn_fcport->loop_id = mb[1];
+				rscn_fcport->d_id.b24 = INVALID_PORT_ID;
+				atomic_set(&rscn_fcport->state,
+				    FCS_DEVICE_LOST);
+				list_add_tail(&rscn_fcport->list,
+				    &ha->rscn_fcports);
+
+				rval = qla2x00_handle_port_rscn(ha, 0,
+				    rscn_fcport, 1);
+				if (rval == QLA_SUCCESS)
+					break;
+			} else {
+				DEBUG14(printk("scsi(%ld): Port Update -- "
+				    "-- unable to allocate RSCN fcport "
+				    "login.\n", ha->host_no));
+			}
+		}
+
+		/*
+		 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
+		 * event etc. earlier indicating loop is down) then process
+		 * it.  Otherwise ignore it and Wait for RSCN to come in.
+		 */
+		atomic_set(&ha->loop_down_timer, 0);
+		if (atomic_read(&ha->loop_state) != LOOP_DOWN &&
+		    atomic_read(&ha->loop_state) != LOOP_DEAD) {
+			DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
+			    "ignored.\n", ha->host_no));
+			break;
+		}
+
+		DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
+		    ha->host_no));
+		DEBUG(printk(KERN_INFO
+		    "scsi(%ld): Port database changed %04x %04x.\n",
+		    ha->host_no, mb[1], mb[2]));
+
+		/*
+		 * Mark all devices as missing so we will login again.
+		 */
+		atomic_set(&ha->loop_state, LOOP_UP);
+
+		qla2x00_mark_all_devices_lost(ha);
+
+		ha->flags.rscn_queue_overflow = 1;
+
+		set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
+		set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
+
+		/* Update AEN queue. */
+		qla2x00_enqueue_aen(ha, MBA_PORT_UPDATE, NULL);
+		break;
+
+	case MBA_RSCN_UPDATE:		/* State Change Registration */
+		mb[1] = RD_MAILBOX_REG(ha, reg, 1);
+		mb[2] = RD_MAILBOX_REG(ha, reg, 2);
+
+		DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
+		    ha->host_no));
+		DEBUG(printk(KERN_INFO
+		    "scsi(%ld): RSCN database changed -- %04x %04x.\n",
+		    ha->host_no, mb[1], mb[2]));
+
+		rscn_entry = (mb[1] << 16) | mb[2];
+		host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) |
+		    ha->d_id.b.al_pa;
+		if (rscn_entry == host_pid) {
+			DEBUG(printk(KERN_INFO
+			    "scsi(%ld): Ignoring RSCN update to local host "
+			    "port ID (%06x)\n",
+			    ha->host_no, host_pid));
+			break;
+		}
+
+		rscn_queue_index = ha->rscn_in_ptr + 1;
+		if (rscn_queue_index == MAX_RSCN_COUNT)
+			rscn_queue_index = 0;
+		if (rscn_queue_index != ha->rscn_out_ptr) {
+			ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry;
+			ha->rscn_in_ptr = rscn_queue_index;
+		} else {
+			ha->flags.rscn_queue_overflow = 1;
+		}
+
+		atomic_set(&ha->loop_state, LOOP_UPDATE);
+		atomic_set(&ha->loop_down_timer, 0);
+		ha->flags.management_server_logged_in = 0;
+
+		set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
+		set_bit(RSCN_UPDATE, &ha->dpc_flags);
+
+		/* Update AEN queue. */
+		qla2x00_enqueue_aen(ha, MBA_RSCN_UPDATE, &mb[0]);
+		break;
+
+	/* case MBA_RIO_RESPONSE: */
+	case MBA_ZIO_RESPONSE:
+		DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
+		    ha->host_no));
+		DEBUG(printk(KERN_INFO
+		    "scsi(%ld): [R|Z]IO update completion.\n",
+		    ha->host_no));
+
+		qla2x00_process_response_queue(ha);
+		break;
+	}
+}
+
+/**
+ * qla2x00_process_completed_request() - Process a Fast Post response.
+ * @ha: SCSI driver HA context
+ * @index: SRB index
+ */
+static void
+qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index)
+{
+	srb_t *sp;
+
+	/* Validate handle. */
+	if (index >= MAX_OUTSTANDING_COMMANDS) {
+		DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
+		    ha->host_no, index));
+		qla_printk(KERN_WARNING, ha,
+		    "Invalid SCSI completion handle %d.\n", index);
+
+		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+		return;
+	}
+
+	sp = ha->outstanding_cmds[index];
+	if (sp) {
+		/* Free outstanding command slot. */
+		ha->outstanding_cmds[index] = NULL;
+
+		if (ha->actthreads)
+			ha->actthreads--;
+		sp->lun_queue->out_cnt--;
+		CMD_COMPL_STATUS(sp->cmd) = 0L;
+		CMD_SCSI_STATUS(sp->cmd) = 0L;
+
+		/* Save ISP completion status */
+		sp->cmd->result = DID_OK << 16;
+		sp->fo_retry_cnt = 0;
+		add_to_done_queue(ha, sp);
+	} else {
+		DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n",
+		    ha->host_no));
+		qla_printk(KERN_WARNING, ha,
+		    "Invalid ISP SCSI completion handle\n");
+
+		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+	}
+}
+
+/**
+ * qla2x00_process_response_queue() - Process response queue entries.
+ * @ha: SCSI driver HA context
+ */
+void
+qla2x00_process_response_queue(struct scsi_qla_host *ha)
+{
+	device_reg_t __iomem *reg = ha->iobase;
+	sts_entry_t	*pkt;
+	uint16_t        handle_cnt;
+	uint16_t        cnt;
+
+	if (!ha->flags.online)
+		return;
+
+	while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) {
+		pkt = (sts_entry_t *)ha->response_ring_ptr;
+
+		ha->rsp_ring_index++;
+		if (ha->rsp_ring_index == ha->response_q_length) {
+			ha->rsp_ring_index = 0;
+			ha->response_ring_ptr = ha->response_ring;
+		} else {
+			ha->response_ring_ptr++;
+		}
+
+		if (pkt->entry_status != 0) {
+			DEBUG3(printk(KERN_INFO
+			    "scsi(%ld): Process error entry.\n", ha->host_no));
+
+			qla2x00_error_entry(ha, pkt);
+			((response_t *)pkt)->signature = RESPONSE_PROCESSED;
+			wmb();
+			continue;
+		}
+
+		switch (pkt->entry_type) {
+		case STATUS_TYPE:
+			qla2x00_status_entry(ha, pkt);
+			break;
+		case STATUS_TYPE_21:
+			handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
+			for (cnt = 0; cnt < handle_cnt; cnt++) {
+				qla2x00_process_completed_request(ha,
+				    ((sts21_entry_t *)pkt)->handle[cnt]);
+			}
+			break;
+		case STATUS_TYPE_22:
+			handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
+			for (cnt = 0; cnt < handle_cnt; cnt++) {
+				qla2x00_process_completed_request(ha,
+				    ((sts22_entry_t *)pkt)->handle[cnt]);
+			}
+			break;
+		case STATUS_CONT_TYPE:
+			qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt);
+			break;
+		case MS_IOCB_TYPE:
+			qla2x00_ms_entry(ha, (ms_iocb_entry_t *)pkt);
+			break;
+		case MBX_IOCB_TYPE:
+			if (!IS_QLA2100(ha) && !IS_QLA2200(ha) &&
+			    !IS_QLA6312(ha) && !IS_QLA6322(ha)) {
+				if (pkt->sys_define == SOURCE_ASYNC_IOCB) {
+					qla2x00_process_iodesc(ha,
+					    (struct mbx_entry *)pkt);
+				} else {
+					/* MBX IOCB Type Not Supported. */
+					DEBUG4(printk(KERN_WARNING
+					    "scsi(%ld): Received unknown MBX "
+					    "IOCB response pkt type=%x "
+					    "source=%x entry status=%x.\n",
+					    ha->host_no, pkt->entry_type,
+					    pkt->sys_define,
+					    pkt->entry_status));
+				}
+				break;
+			}
+			/* Fallthrough. */
+		default:
+			/* Type Not Supported. */
+			DEBUG4(printk(KERN_WARNING
+			    "scsi(%ld): Received unknown response pkt type %x "
+			    "entry status=%x.\n",
+			    ha->host_no, pkt->entry_type, pkt->entry_status));
+			break;
+		}
+		((response_t *)pkt)->signature = RESPONSE_PROCESSED;
+		wmb();
+	}
+
+	/* Adjust ring index */
+	WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index);
+}
+
+/**
+ * qla2x00_status_entry() - Process a Status IOCB entry.
+ * @ha: SCSI driver HA context
+ * @pkt: Entry pointer
+ */
+static void
+qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt)
+{
+	int		ret;
+	unsigned	b, t, l;
+	srb_t		*sp;
+	os_lun_t	*lq;
+	os_tgt_t	*tq;
+	fc_port_t	*fcport;
+	struct scsi_cmnd *cp;
+	uint16_t	comp_status;
+	uint16_t	scsi_status;
+	uint8_t		lscsi_status;
+	int32_t		resid;
+	uint8_t		sense_sz = 0;
+	uint16_t	rsp_info_len;
+
+	/* Fast path completion. */
+	if (le16_to_cpu(pkt->comp_status) == CS_COMPLETE &&
+	    (le16_to_cpu(pkt->scsi_status) & SS_MASK) == 0) {
+		qla2x00_process_completed_request(ha, pkt->handle);
+
+		return;
+	}
+
+	/* Validate handle. */
+	if (pkt->handle < MAX_OUTSTANDING_COMMANDS) {
+		sp = ha->outstanding_cmds[pkt->handle];
+		ha->outstanding_cmds[pkt->handle] = NULL;
+	} else
+		sp = NULL;
+
+	if (sp == NULL) {
+		DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
+		    ha->host_no));
+		qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n");
+
+		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+		if (ha->dpc_wait && !ha->dpc_active) 
+			up(ha->dpc_wait);
+
+		return;
+	}
+	cp = sp->cmd;
+	if (cp == NULL) {
+		DEBUG2(printk("scsi(%ld): Command already returned back to OS "
+		    "pkt->handle=%d sp=%p sp->state:%d\n",
+		    ha->host_no, pkt->handle, sp, sp->state));
+		qla_printk(KERN_WARNING, ha,
+		    "Command is NULL: already returned to OS (sp=%p)\n", sp);
+
+		return;
+	}
+
+	if (ha->actthreads)
+		ha->actthreads--;
+
+	if (sp->lun_queue == NULL) {
+		DEBUG2(printk("scsi(%ld): Status Entry invalid lun pointer.\n",
+		    ha->host_no));
+		qla_printk(KERN_WARNING, ha,
+		    "Status Entry invalid lun pointer.\n");
+
+		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+		if (ha->dpc_wait && !ha->dpc_active) 
+			up(ha->dpc_wait);
+
+		return;
+	}
+
+	sp->lun_queue->out_cnt--;
+
+	comp_status = le16_to_cpu(pkt->comp_status);
+	/* Mask of reserved bits 12-15, before we examine the scsi status */
+	scsi_status = le16_to_cpu(pkt->scsi_status) & SS_MASK;
+	lscsi_status = scsi_status & STATUS_MASK;
+
+	CMD_ENTRY_STATUS(cp) = pkt->entry_status;
+	CMD_COMPL_STATUS(cp) = comp_status;
+	CMD_SCSI_STATUS(cp) = scsi_status;
+
+	/* Generate LU queue on cntrl, target, LUN */
+	b = cp->device->channel;
+	t = cp->device->id;
+	l = cp->device->lun,
+
+	tq = sp->tgt_queue;
+	lq = sp->lun_queue;
+
+	/*
+	 * If loop is in transient state Report DID_BUS_BUSY
+	 */
+	if ((comp_status != CS_COMPLETE || scsi_status != 0)) {
+		if (!(sp->flags & (SRB_IOCTL | SRB_TAPE)) &&
+		    (atomic_read(&ha->loop_down_timer) ||
+			atomic_read(&ha->loop_state) != LOOP_READY)) {
+
+			DEBUG2(printk("scsi(%ld:%d:%d:%d): Loop Not Ready - "
+			    "pid=%lx.\n",
+			    ha->host_no, b, t, l, cp->serial_number));
+
+			qla2x00_extend_timeout(cp, EXTEND_CMD_TIMEOUT);
+			add_to_retry_queue(ha, sp);
+			return;
+		}
+	}
+
+	/* Check for any FCP transport errors. */
+	if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
+		rsp_info_len = le16_to_cpu(pkt->rsp_info_len);
+		if (rsp_info_len > 3 && pkt->rsp_info[3]) {
+			DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
+			    "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
+			    "retrying command\n", ha->host_no, b, t, l,
+			    rsp_info_len, pkt->rsp_info[0], pkt->rsp_info[1],
+			    pkt->rsp_info[2], pkt->rsp_info[3],
+			    pkt->rsp_info[4], pkt->rsp_info[5],
+			    pkt->rsp_info[6], pkt->rsp_info[7]));
+
+			cp->result = DID_BUS_BUSY << 16;
+			add_to_done_queue(ha, sp);
+			return;
+		}
+	}
+
+	/*
+	 * Based on Host and scsi status generate status code for Linux
+	 */
+	switch (comp_status) {
+	case CS_COMPLETE:
+		if (scsi_status == 0) {
+			cp->result = DID_OK << 16;
+			break;
+		}
+		if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
+			resid = le32_to_cpu(pkt->residual_length);
+			cp->resid = resid;
+			CMD_RESID_LEN(cp) = resid;
+		}
+		if (lscsi_status == SS_BUSY_CONDITION) {
+			cp->result = DID_BUS_BUSY << 16 | lscsi_status;
+			break;
+		}
+
+		cp->result = DID_OK << 16 | lscsi_status;
+
+		if (lscsi_status != SS_CHECK_CONDITION)
+			break;
+
+		/*
+		 * Copy Sense Data into sense buffer
+		 */
+		memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));
+
+		if (!(scsi_status & SS_SENSE_LEN_VALID))
+			break;
+
+		if (le16_to_cpu(pkt->req_sense_length) <
+		    sizeof(cp->sense_buffer))
+			sense_sz = le16_to_cpu(pkt->req_sense_length);
+		else
+			sense_sz = sizeof(cp->sense_buffer);
+
+		CMD_ACTUAL_SNSLEN(cp) = sense_sz;
+		sp->request_sense_length = sense_sz;
+		sp->request_sense_ptr = cp->sense_buffer;
+
+		if (sp->request_sense_length > 32)
+			sense_sz = 32;
+
+		memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz);
+
+		sp->request_sense_ptr += sense_sz;
+		sp->request_sense_length -= sense_sz;
+		if (sp->request_sense_length != 0)
+			ha->status_srb = sp;
+
+		if (!(sp->flags & (SRB_IOCTL | SRB_TAPE)) &&
+		    qla2x00_check_sense(cp, lq) == QLA_SUCCESS) {
+			/* Throw away status_cont if any */
+			ha->status_srb = NULL;
+			add_to_scsi_retry_queue(ha, sp);
+			return;
+		}
+
+		DEBUG5(printk("%s(): Check condition Sense data, "
+		    "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
+		    __func__, ha->host_no, b, t, l, cp,
+		    cp->serial_number));
+		if (sense_sz)
+			DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
+			    CMD_ACTUAL_SNSLEN(cp)));
+		break;
+
+	case CS_DATA_UNDERRUN:
+		DEBUG2(printk(KERN_INFO
+		    "scsi(%ld:%d:%d) UNDERRUN status detected 0x%x-0x%x.\n",
+		    ha->host_no, t, l, comp_status, scsi_status));
+
+		resid = le32_to_cpu(pkt->residual_length);
+		if (scsi_status & SS_RESIDUAL_UNDER) {
+			cp->resid = resid;
+			CMD_RESID_LEN(cp) = resid;
+		}
+
+		/*
+		 * Check to see if SCSI Status is non zero. If so report SCSI 
+		 * Status.
+		 */
+		if (lscsi_status != 0) {
+			if (lscsi_status == SS_BUSY_CONDITION) {
+				cp->result = DID_BUS_BUSY << 16 |
+				    lscsi_status;
+				break;
+			}
+
+			cp->result = DID_OK << 16 | lscsi_status;
+
+			if (lscsi_status != SS_CHECK_CONDITION)
+				break;
+
+			/* Copy Sense Data into sense buffer */
+			memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));
+
+			if (!(scsi_status & SS_SENSE_LEN_VALID))
+				break;
+
+			if (le16_to_cpu(pkt->req_sense_length) <
+			    sizeof(cp->sense_buffer))
+				sense_sz = le16_to_cpu(pkt->req_sense_length);
+			else
+				sense_sz = sizeof(cp->sense_buffer);
+
+			CMD_ACTUAL_SNSLEN(cp) = sense_sz;
+			sp->request_sense_length = sense_sz;
+			sp->request_sense_ptr = cp->sense_buffer;
+
+			if (sp->request_sense_length > 32) 
+				sense_sz = 32;
+
+			memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz);
+
+			sp->request_sense_ptr += sense_sz;
+			sp->request_sense_length -= sense_sz;
+			if (sp->request_sense_length != 0)
+				ha->status_srb = sp;
+
+			if (!(sp->flags & (SRB_IOCTL | SRB_TAPE)) &&
+			    (qla2x00_check_sense(cp, lq) == QLA_SUCCESS)) {
+				ha->status_srb = NULL;
+				add_to_scsi_retry_queue(ha, sp);
+				return;
+			}
+			DEBUG5(printk("%s(): Check condition Sense data, "
+			    "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
+			    __func__, ha->host_no, b, t, l, cp,
+			    cp->serial_number));
+			if (sense_sz)
+				DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
+				    CMD_ACTUAL_SNSLEN(cp)));
+		} else {
+			/*
+			 * If RISC reports underrun and target does not report
+			 * it then we must have a lost frame, so tell upper
+			 * layer to retry it by reporting a bus busy.
+			 */
+			if (!(scsi_status & SS_RESIDUAL_UNDER)) {
+				DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
+				    "frame(s) detected (%x of %x bytes)..."
+				    "retrying command.\n",
+				    ha->host_no, b, t, l, resid,
+				    cp->request_bufflen));
+
+				cp->result = DID_BUS_BUSY << 16;
+				ha->dropped_frame_error_cnt++;
+				break;
+			}
+
+			/* Handle mid-layer underflow */
+			if ((unsigned)(cp->request_bufflen - resid) <
+			    cp->underflow) {
+				qla_printk(KERN_INFO, ha,
+				    "scsi(%ld:%d:%d:%d): Mid-layer underflow "
+				    "detected (%x of %x bytes)...returning "
+				    "error status.\n",
+				    ha->host_no, b, t, l, resid,
+				    cp->request_bufflen);
+
+				cp->result = DID_ERROR << 16;
+				break;
+			}
+
+			/* Everybody online, looking good... */
+			cp->result = DID_OK << 16;
+		}
+		break;
+
+	case CS_DATA_OVERRUN:
+		DEBUG2(printk(KERN_INFO
+		    "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
+		    ha->host_no, t, l, comp_status, scsi_status));
+		DEBUG2(printk(KERN_INFO
+		    "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
+		    cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
+		    cp->cmnd[4], cp->cmnd[5]));
+		DEBUG2(printk(KERN_INFO
+		    "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
+		    "status!\n",
+		    cp->serial_number, cp->request_bufflen,
+		    le32_to_cpu(pkt->residual_length)));
+
+		cp->result = DID_ERROR << 16;
+		break;
+
+	case CS_PORT_LOGGED_OUT:
+	case CS_PORT_CONFIG_CHG:
+	case CS_PORT_BUSY:
+	case CS_INCOMPLETE:
+	case CS_PORT_UNAVAILABLE:
+		/*
+		 * If the port is in Target Down state, return all IOs for this
+		 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
+		 * retry_queue.
+		 */
+		fcport = sp->fclun->fcport;
+		DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
+		    "pid=%ld, compl status=0x%x, port state=0x%x\n",
+		    ha->host_no, t, l, cp->serial_number, comp_status,
+		    atomic_read(&fcport->state)));
+
+		if ((sp->flags & (SRB_IOCTL | SRB_TAPE)) ||
+		    atomic_read(&fcport->state) == FCS_DEVICE_DEAD) {
+			cp->result = DID_NO_CONNECT << 16;
+			if (atomic_read(&ha->loop_state) == LOOP_DOWN) 
+				sp->err_id = SRB_ERR_LOOP;
+			else
+				sp->err_id = SRB_ERR_PORT;
+			add_to_done_queue(ha, sp);
+		} else {
+			qla2x00_extend_timeout(cp, EXTEND_CMD_TIMEOUT);
+			add_to_retry_queue(ha, sp);
+		}
+
+		if (atomic_read(&fcport->state) == FCS_ONLINE) {
+			qla2x00_mark_device_lost(ha, fcport, 1);
+		}
+
+		return;
+		break;
+
+	case CS_RESET:
+		DEBUG2(printk(KERN_INFO
+		    "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
+		    ha->host_no, comp_status, scsi_status));
+
+		if (sp->flags & (SRB_IOCTL | SRB_TAPE)) {
+			cp->result = DID_RESET << 16;
+		} else {
+			qla2x00_extend_timeout(cp, EXTEND_CMD_TIMEOUT);
+			add_to_retry_queue(ha, sp);
+			return;
+		}
+		break;
+
+	case CS_ABORTED:
+		/* 
+		 * hv2.19.12 - DID_ABORT does not retry the request if we
+		 * aborted this request then abort otherwise it must be a
+		 * reset.
+		 */
+		DEBUG2(printk(KERN_INFO
+		    "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
+		    ha->host_no, comp_status, scsi_status));
+
+		cp->result = DID_RESET << 16;
+		break;
+
+	case CS_TIMEOUT:
+		DEBUG2(printk(KERN_INFO
+		    "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
+		    "sflags=%x.\n", ha->host_no, b, t, l, comp_status,
+		    scsi_status, le16_to_cpu(pkt->status_flags)));
+
+		cp->result = DID_BUS_BUSY << 16;
+
+		fcport = lq->fclun->fcport;
+
+		/* Check to see if logout occurred */
+		if ((le16_to_cpu(pkt->status_flags) & SF_LOGOUT_SENT)) {
+			qla2x00_mark_device_lost(ha, fcport, 1);
+		}
+		break;
+
+	case CS_QUEUE_FULL:
+		DEBUG2(printk(KERN_INFO
+		    "scsi(%ld): QUEUE FULL status detected 0x%x-0x%x.\n",
+		    ha->host_no, comp_status, scsi_status));
+
+		/* SCSI Mid-Layer handles device queue full */
+
+		cp->result = DID_OK << 16 | lscsi_status; 
+
+		/* TODO: ??? */
+		/* Adjust queue depth */
+		ret = scsi_track_queue_full(cp->device,
+		    sp->lun_queue->out_cnt - 1);
+		if (ret) {
+			qla_printk(KERN_INFO, ha,
+			    "scsi(%ld:%d:%d:%d): Queue depth adjusted to %d.\n",
+			    ha->host_no, cp->device->channel, cp->device->id,
+			    cp->device->lun, ret);
+		}
+		break;
+
+	default:
+		DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
+		    "0x%x-0x%x.\n",
+		    ha->host_no, comp_status, scsi_status));
+		qla_printk(KERN_INFO, ha,
+		    "Unknown status detected 0x%x-0x%x.\n",
+		    comp_status, scsi_status);
+
+		cp->result = DID_ERROR << 16;
+		break;
+	}
+
+	/* Place command on done queue. */
+	if (ha->status_srb == NULL)
+		add_to_done_queue(ha, sp);
+}
+
+/**
+ * qla2x00_status_cont_entry() - Process a Status Continuations entry.
+ * @ha: SCSI driver HA context
+ * @pkt: Entry pointer
+ *
+ * Extended sense data.
+ */
+static void
+qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt)
+{
+	uint8_t		sense_sz = 0;
+	srb_t		*sp = ha->status_srb;
+	struct scsi_cmnd *cp;
+
+	if (sp != NULL && sp->request_sense_length != 0) {
+		cp = sp->cmd;
+		if (cp == NULL) {
+			DEBUG2(printk("%s(): Cmd already returned back to OS "
+			    "sp=%p sp->state:%d\n", __func__, sp, sp->state));
+			qla_printk(KERN_INFO, ha,
+			    "cmd is NULL: already returned to OS (sp=%p)\n",
+			    sp); 
+
+			ha->status_srb = NULL;
+			return;
+		}
+
+		if (sp->request_sense_length > sizeof(pkt->data)) {
+			sense_sz = sizeof(pkt->data);
+		} else {
+			sense_sz = sp->request_sense_length;
+		}
+
+		/* Move sense data. */
+		memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
+		DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));
+
+		sp->request_sense_ptr += sense_sz;
+		sp->request_sense_length -= sense_sz;
+
+		/* Place command on done queue. */
+		if (sp->request_sense_length == 0) {
+			add_to_done_queue(ha, sp);
+			ha->status_srb = NULL;
+		}
+	}
+}
+
+/**
+ * qla2x00_error_entry() - Process an error entry.
+ * @ha: SCSI driver HA context
+ * @pkt: Entry pointer
+ */
+static void
+qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) 
+{
+	srb_t *sp;
+
+#if defined(QL_DEBUG_LEVEL_2)
+	if (pkt->entry_status & RF_INV_E_ORDER)
+		qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
+	else if (pkt->entry_status & RF_INV_E_COUNT)
+		qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
+	else if (pkt->entry_status & RF_INV_E_PARAM)
+		qla_printk(KERN_ERR, ha, 
+		    "%s: Invalid Entry Parameter\n", __func__);
+	else if (pkt->entry_status & RF_INV_E_TYPE)
+		qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
+	else if (pkt->entry_status & RF_BUSY)
+		qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
+	else
+		qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
+#endif
+
+	/* Validate handle. */
+	if (pkt->handle < MAX_OUTSTANDING_COMMANDS)
+		sp = ha->outstanding_cmds[pkt->handle];
+	else
+		sp = NULL;
+
+	if (sp) {
+		/* Free outstanding command slot. */
+		ha->outstanding_cmds[pkt->handle] = NULL;
+		if (ha->actthreads)
+			ha->actthreads--;
+		sp->lun_queue->out_cnt--;
+
+		/* Bad payload or header */
+		if (pkt->entry_status &
+		    (RF_INV_E_ORDER | RF_INV_E_COUNT |
+		     RF_INV_E_PARAM | RF_INV_E_TYPE)) {
+			sp->cmd->result = DID_ERROR << 16;
+		} else if (pkt->entry_status & RF_BUSY) {
+			sp->cmd->result = DID_BUS_BUSY << 16;
+		} else {
+			sp->cmd->result = DID_ERROR << 16;
+		}
+		/* Place command on done queue. */
+		add_to_done_queue(ha, sp);
+
+	} else if (pkt->entry_type == COMMAND_A64_TYPE ||
+	    pkt->entry_type == COMMAND_TYPE) {
+		DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
+		    ha->host_no));
+		qla_printk(KERN_WARNING, ha,
+		    "Error entry - invalid handle\n");
+
+		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+		if (ha->dpc_wait && !ha->dpc_active) 
+			up(ha->dpc_wait);
+	}
+}
+
+/**
+ * qla2x00_ms_entry() - Process a Management Server entry.
+ * @ha: SCSI driver HA context
+ * @index: Response queue out pointer
+ */
+static void
+qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt) 
+{
+	srb_t          *sp;
+
+	DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
+	    __func__, ha->host_no, pkt, pkt->handle1));
+
+	/* Validate handle. */
+ 	if (pkt->handle1 < MAX_OUTSTANDING_COMMANDS)
+ 		sp = ha->outstanding_cmds[pkt->handle1];
+	else
+		sp = NULL;
+
+	if (sp == NULL) {
+		DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
+		    ha->host_no));
+		qla_printk(KERN_WARNING, ha, "MS entry - invalid handle\n");
+
+		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+		return;
+	}
+
+	CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->status);
+	CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status;
+
+	/* Free outstanding command slot. */
+	ha->outstanding_cmds[pkt->handle1] = NULL;
+
+	add_to_done_queue(ha, sp);
+}
+
+/**
+ * qla2x00_check_sense() - Perform any sense data interrogation.
+ * @cp: SCSI Command
+ * @lq: Lun queue
+ *
+ * Returns QLA_SUCCESS if the lun queue is suspended, else
+ * QLA_FUNCTION_FAILED  (lun queue not suspended).
+ */
+static int 
+qla2x00_check_sense(struct scsi_cmnd *cp, os_lun_t *lq)
+{
+	scsi_qla_host_t	*ha;
+	srb_t		*sp;
+	fc_port_t	*fcport;
+
+	ha = (scsi_qla_host_t *) cp->device->host->hostdata;
+	if ((cp->sense_buffer[0] & 0x70) != 0x70) {
+		return (QLA_FUNCTION_FAILED);
+	}
+
+	sp = (srb_t * )CMD_SP(cp);
+	sp->flags |= SRB_GOT_SENSE;
+
+	switch (cp->sense_buffer[2] & 0xf) {
+	case RECOVERED_ERROR:
+		cp->result = DID_OK << 16;
+		cp->sense_buffer[0] = 0;
+		break;
+
+	case NOT_READY:
+		fcport = lq->fclun->fcport;
+
+		/*
+		 * Suspend the lun only for hard disk device type.
+		 */
+		if ((fcport->flags & FCF_TAPE_PRESENT) == 0 &&
+		    lq->q_state != LUN_STATE_TIMEOUT) {
+			/*
+			 * If target is in process of being ready then suspend
+			 * lun for 6 secs and retry all the commands.
+			 */
+			if (cp->sense_buffer[12] == 0x4 &&
+			    cp->sense_buffer[13] == 0x1) {
+
+				/* Suspend the lun for 6 secs */
+				qla2x00_suspend_lun(ha, lq, 6,
+				    ql2xsuspendcount);
+
+				return (QLA_SUCCESS);
+			}
+		}
+		break;
+	}
+
+	return (QLA_FUNCTION_FAILED);
+}