qla_mr.c 90.7 KB
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/*
 * QLogic Fibre Channel HBA Driver
 * Copyright (c)  2003-2013 QLogic Corporation
 *
 * See LICENSE.qla2xxx for copyright and licensing details.
 */
#include "qla_def.h"
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/ratelimit.h>
#include <linux/vmalloc.h>
#include <scsi/scsi_tcq.h>
#include <linux/utsname.h>


/* QLAFX00 specific Mailbox implementation functions */

/*
 * qlafx00_mailbox_command
 *	Issue mailbox command and waits for completion.
 *
 * Input:
 *	ha = adapter block pointer.
 *	mcp = driver internal mbx struct pointer.
 *
 * Output:
 *	mb[MAX_MAILBOX_REGISTER_COUNT] = returned mailbox data.
 *
 * Returns:
 *	0 : QLA_SUCCESS = cmd performed success
 *	1 : QLA_FUNCTION_FAILED   (error encountered)
 *	6 : QLA_FUNCTION_TIMEOUT (timeout condition encountered)
 *
 * Context:
 *	Kernel context.
 */
static int
qlafx00_mailbox_command(scsi_qla_host_t *vha, struct mbx_cmd_32 *mcp)

{
	int		rval;
	unsigned long    flags = 0;
	device_reg_t __iomem *reg;
	uint8_t		abort_active;
	uint8_t		io_lock_on;
	uint16_t	command = 0;
	uint32_t	*iptr;
	uint32_t __iomem *optr;
	uint32_t	cnt;
	uint32_t	mboxes;
	unsigned long	wait_time;
	struct qla_hw_data *ha = vha->hw;
	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);

	if (ha->pdev->error_state > pci_channel_io_frozen) {
		ql_log(ql_log_warn, vha, 0x115c,
		    "error_state is greater than pci_channel_io_frozen, "
		    "exiting.\n");
		return QLA_FUNCTION_TIMEOUT;
	}

	if (vha->device_flags & DFLG_DEV_FAILED) {
		ql_log(ql_log_warn, vha, 0x115f,
		    "Device in failed state, exiting.\n");
		return QLA_FUNCTION_TIMEOUT;
	}

	reg = ha->iobase;
	io_lock_on = base_vha->flags.init_done;

	rval = QLA_SUCCESS;
	abort_active = test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);

	if (ha->flags.pci_channel_io_perm_failure) {
		ql_log(ql_log_warn, vha, 0x1175,
		    "Perm failure on EEH timeout MBX, exiting.\n");
		return QLA_FUNCTION_TIMEOUT;
	}

	if (ha->flags.isp82xx_fw_hung) {
		/* Setting Link-Down error */
		mcp->mb[0] = MBS_LINK_DOWN_ERROR;
		ql_log(ql_log_warn, vha, 0x1176,
		    "FW hung = %d.\n", ha->flags.isp82xx_fw_hung);
		rval = QLA_FUNCTION_FAILED;
		goto premature_exit;
	}

	/*
	 * Wait for active mailbox commands to finish by waiting at most tov
	 * seconds. This is to serialize actual issuing of mailbox cmds during
	 * non ISP abort time.
	 */
	if (!wait_for_completion_timeout(&ha->mbx_cmd_comp, mcp->tov * HZ)) {
		/* Timeout occurred. Return error. */
		ql_log(ql_log_warn, vha, 0x1177,
		    "Cmd access timeout, cmd=0x%x, Exiting.\n",
		    mcp->mb[0]);
		return QLA_FUNCTION_TIMEOUT;
	}

	ha->flags.mbox_busy = 1;
	/* Save mailbox command for debug */
	ha->mcp32 = mcp;

	ql_dbg(ql_dbg_mbx, vha, 0x1178,
	    "Prepare to issue mbox cmd=0x%x.\n", mcp->mb[0]);

	spin_lock_irqsave(&ha->hardware_lock, flags);

	/* Load mailbox registers. */
	optr = (uint32_t __iomem *)&reg->ispfx00.mailbox0;

	iptr = mcp->mb;
	command = mcp->mb[0];
	mboxes = mcp->out_mb;

	for (cnt = 0; cnt < ha->mbx_count; cnt++) {
		if (mboxes & BIT_0)
			WRT_REG_DWORD(optr, *iptr);

		mboxes >>= 1;
		optr++;
		iptr++;
	}

	/* Issue set host interrupt command to send cmd out. */
	ha->flags.mbox_int = 0;
	clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);

	ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1172,
	    (uint8_t *)mcp->mb, 16);
	ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1173,
	    ((uint8_t *)mcp->mb + 0x10), 16);
	ql_dump_buffer(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1174,
	    ((uint8_t *)mcp->mb + 0x20), 8);

	/* Unlock mbx registers and wait for interrupt */
	ql_dbg(ql_dbg_mbx, vha, 0x1179,
	    "Going to unlock irq & waiting for interrupts. "
	    "jiffies=%lx.\n", jiffies);

	/* Wait for mbx cmd completion until timeout */
	if ((!abort_active && io_lock_on) || IS_NOPOLLING_TYPE(ha)) {
		set_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);

		QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
		spin_unlock_irqrestore(&ha->hardware_lock, flags);

		wait_for_completion_timeout(&ha->mbx_intr_comp, mcp->tov * HZ);
	} else {
		ql_dbg(ql_dbg_mbx, vha, 0x112c,
		    "Cmd=%x Polling Mode.\n", command);

		QLAFX00_SET_HST_INTR(ha, ha->mbx_intr_code);
		spin_unlock_irqrestore(&ha->hardware_lock, flags);

		wait_time = jiffies + mcp->tov * HZ; /* wait at most tov secs */
		while (!ha->flags.mbox_int) {
			if (time_after(jiffies, wait_time))
				break;

			/* Check for pending interrupts. */
			qla2x00_poll(ha->rsp_q_map[0]);

			if (!ha->flags.mbox_int &&
			    !(IS_QLA2200(ha) &&
			    command == MBC_LOAD_RISC_RAM_EXTENDED))
				usleep_range(10000, 11000);
		} /* while */
		ql_dbg(ql_dbg_mbx, vha, 0x112d,
		    "Waited %d sec.\n",
		    (uint)((jiffies - (wait_time - (mcp->tov * HZ)))/HZ));
	}

	/* Check whether we timed out */
	if (ha->flags.mbox_int) {
		uint32_t *iptr2;

		ql_dbg(ql_dbg_mbx, vha, 0x112e,
		    "Cmd=%x completed.\n", command);

		/* Got interrupt. Clear the flag. */
		ha->flags.mbox_int = 0;
		clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);

		if (ha->mailbox_out32[0] != MBS_COMMAND_COMPLETE)
			rval = QLA_FUNCTION_FAILED;

		/* Load return mailbox registers. */
		iptr2 = mcp->mb;
		iptr = (uint32_t *)&ha->mailbox_out32[0];
		mboxes = mcp->in_mb;
		for (cnt = 0; cnt < ha->mbx_count; cnt++) {
			if (mboxes & BIT_0)
				*iptr2 = *iptr;

			mboxes >>= 1;
			iptr2++;
			iptr++;
		}
	} else {

		rval = QLA_FUNCTION_TIMEOUT;
	}

	ha->flags.mbox_busy = 0;

	/* Clean up */
	ha->mcp32 = NULL;

	if ((abort_active || !io_lock_on) && !IS_NOPOLLING_TYPE(ha)) {
		ql_dbg(ql_dbg_mbx, vha, 0x113a,
		    "checking for additional resp interrupt.\n");

		/* polling mode for non isp_abort commands. */
		qla2x00_poll(ha->rsp_q_map[0]);
	}

	if (rval == QLA_FUNCTION_TIMEOUT &&
	    mcp->mb[0] != MBC_GEN_SYSTEM_ERROR) {
		if (!io_lock_on || (mcp->flags & IOCTL_CMD) ||
		    ha->flags.eeh_busy) {
			/* not in dpc. schedule it for dpc to take over. */
			ql_dbg(ql_dbg_mbx, vha, 0x115d,
			    "Timeout, schedule isp_abort_needed.\n");

			if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
			    !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
			    !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {

				ql_log(ql_log_info, base_vha, 0x115e,
				    "Mailbox cmd timeout occurred, cmd=0x%x, "
				    "mb[0]=0x%x, eeh_busy=0x%x. Scheduling ISP "
				    "abort.\n", command, mcp->mb[0],
				    ha->flags.eeh_busy);
				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
				qla2xxx_wake_dpc(vha);
			}
		} else if (!abort_active) {
			/* call abort directly since we are in the DPC thread */
			ql_dbg(ql_dbg_mbx, vha, 0x1160,
			    "Timeout, calling abort_isp.\n");

			if (!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) &&
			    !test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) &&
			    !test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {

				ql_log(ql_log_info, base_vha, 0x1161,
				    "Mailbox cmd timeout occurred, cmd=0x%x, "
				    "mb[0]=0x%x. Scheduling ISP abort ",
				    command, mcp->mb[0]);

				set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
				clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
				if (ha->isp_ops->abort_isp(vha)) {
					/* Failed. retry later. */
					set_bit(ISP_ABORT_NEEDED,
					    &vha->dpc_flags);
				}
				clear_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
				ql_dbg(ql_dbg_mbx, vha, 0x1162,
				    "Finished abort_isp.\n");
			}
		}
	}

premature_exit:
	/* Allow next mbx cmd to come in. */
	complete(&ha->mbx_cmd_comp);

	if (rval) {
		ql_log(ql_log_warn, base_vha, 0x1163,
		    "**** Failed mbx[0]=%x, mb[1]=%x, mb[2]=%x, "
		    "mb[3]=%x, cmd=%x ****.\n",
		    mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3], command);
	} else {
		ql_dbg(ql_dbg_mbx, base_vha, 0x1164, "Done %s.\n", __func__);
	}

	return rval;
}

/*
 * qlafx00_driver_shutdown
 *	Indicate a driver shutdown to firmware.
 *
 * Input:
 *	ha = adapter block pointer.
 *
 * Returns:
 *	local function return status code.
 *
 * Context:
 *	Kernel context.
 */
297
int
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qlafx00_driver_shutdown(scsi_qla_host_t *vha, int tmo)
{
	int rval;
	struct mbx_cmd_32 mc;
	struct mbx_cmd_32 *mcp = &mc;

	ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1166,
	    "Entered %s.\n", __func__);

	mcp->mb[0] = MBC_MR_DRV_SHUTDOWN;
	mcp->out_mb = MBX_0;
	mcp->in_mb = MBX_0;
	if (tmo)
		mcp->tov = tmo;
	else
		mcp->tov = MBX_TOV_SECONDS;
	mcp->flags = 0;
	rval = qlafx00_mailbox_command(vha, mcp);

	if (rval != QLA_SUCCESS) {
		ql_dbg(ql_dbg_mbx, vha, 0x1167,
		    "Failed=%x.\n", rval);
	} else {
		ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1168,
		    "Done %s.\n", __func__);
	}

	return rval;
}

/*
 * qlafx00_get_firmware_state
 *	Get adapter firmware state.
 *
 * Input:
 *	ha = adapter block pointer.
 *	TARGET_QUEUE_LOCK must be released.
 *	ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *	qla7xxx local function return status code.
 *
 * Context:
 *	Kernel context.
 */
static int
qlafx00_get_firmware_state(scsi_qla_host_t *vha, uint32_t *states)
{
	int rval;
	struct mbx_cmd_32 mc;
	struct mbx_cmd_32 *mcp = &mc;

	ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1169,
	    "Entered %s.\n", __func__);

	mcp->mb[0] = MBC_GET_FIRMWARE_STATE;
	mcp->out_mb = MBX_0;
	mcp->in_mb = MBX_1|MBX_0;
	mcp->tov = MBX_TOV_SECONDS;
	mcp->flags = 0;
	rval = qlafx00_mailbox_command(vha, mcp);

	/* Return firmware states. */
	states[0] = mcp->mb[1];

	if (rval != QLA_SUCCESS) {
		ql_dbg(ql_dbg_mbx, vha, 0x116a,
		    "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
	} else {
		ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116b,
		    "Done %s.\n", __func__);
	}
	return rval;
}

/*
 * qlafx00_init_firmware
 *	Initialize adapter firmware.
 *
 * Input:
 *	ha = adapter block pointer.
 *	dptr = Initialization control block pointer.
 *	size = size of initialization control block.
 *	TARGET_QUEUE_LOCK must be released.
 *	ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *	qlafx00 local function return status code.
 *
 * Context:
 *	Kernel context.
 */
int
qlafx00_init_firmware(scsi_qla_host_t *vha, uint16_t size)
{
	int rval;
	struct mbx_cmd_32 mc;
	struct mbx_cmd_32 *mcp = &mc;
	struct qla_hw_data *ha = vha->hw;

	ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116c,
	    "Entered %s.\n", __func__);

	mcp->mb[0] = MBC_INITIALIZE_FIRMWARE;

	mcp->mb[1] = 0;
	mcp->mb[2] = MSD(ha->init_cb_dma);
	mcp->mb[3] = LSD(ha->init_cb_dma);

	mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
	mcp->in_mb = MBX_0;
	mcp->buf_size = size;
	mcp->flags = MBX_DMA_OUT;
	mcp->tov = MBX_TOV_SECONDS;
	rval = qlafx00_mailbox_command(vha, mcp);

	if (rval != QLA_SUCCESS) {
		ql_dbg(ql_dbg_mbx, vha, 0x116d,
		    "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
	} else {
		ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116e,
		    "Done %s.\n", __func__);
	}
	return rval;
}

/*
 * qlafx00_mbx_reg_test
 */
static int
qlafx00_mbx_reg_test(scsi_qla_host_t *vha)
{
	int rval;
	struct mbx_cmd_32 mc;
	struct mbx_cmd_32 *mcp = &mc;

	ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x116f,
	    "Entered %s.\n", __func__);


	mcp->mb[0] = MBC_MAILBOX_REGISTER_TEST;
	mcp->mb[1] = 0xAAAA;
	mcp->mb[2] = 0x5555;
	mcp->mb[3] = 0xAA55;
	mcp->mb[4] = 0x55AA;
	mcp->mb[5] = 0xA5A5;
	mcp->mb[6] = 0x5A5A;
	mcp->mb[7] = 0x2525;
	mcp->mb[8] = 0xBBBB;
	mcp->mb[9] = 0x6666;
	mcp->mb[10] = 0xBB66;
	mcp->mb[11] = 0x66BB;
	mcp->mb[12] = 0xB6B6;
	mcp->mb[13] = 0x6B6B;
	mcp->mb[14] = 0x3636;
	mcp->mb[15] = 0xCCCC;


	mcp->out_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
			MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
	mcp->in_mb = MBX_15|MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|
			MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
	mcp->buf_size = 0;
	mcp->flags = MBX_DMA_OUT;
	mcp->tov = MBX_TOV_SECONDS;
	rval = qlafx00_mailbox_command(vha, mcp);
	if (rval == QLA_SUCCESS) {
		if (mcp->mb[17] != 0xAAAA || mcp->mb[18] != 0x5555 ||
		    mcp->mb[19] != 0xAA55 || mcp->mb[20] != 0x55AA)
			rval = QLA_FUNCTION_FAILED;
		if (mcp->mb[21] != 0xA5A5 || mcp->mb[22] != 0x5A5A ||
		    mcp->mb[23] != 0x2525 || mcp->mb[24] != 0xBBBB)
			rval = QLA_FUNCTION_FAILED;
		if (mcp->mb[25] != 0x6666 || mcp->mb[26] != 0xBB66 ||
		    mcp->mb[27] != 0x66BB || mcp->mb[28] != 0xB6B6)
			rval = QLA_FUNCTION_FAILED;
		if (mcp->mb[29] != 0x6B6B || mcp->mb[30] != 0x3636 ||
		    mcp->mb[31] != 0xCCCC)
			rval = QLA_FUNCTION_FAILED;
	}

	if (rval != QLA_SUCCESS) {
		ql_dbg(ql_dbg_mbx, vha, 0x1170,
		    "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
	} else {
		ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1171,
		    "Done %s.\n", __func__);
	}
	return rval;
}

/**
 * qlafx00_pci_config() - Setup ISPFx00 PCI configuration registers.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
int
qlafx00_pci_config(scsi_qla_host_t *vha)
{
	uint16_t w;
	struct qla_hw_data *ha = vha->hw;

	pci_set_master(ha->pdev);
	pci_try_set_mwi(ha->pdev);

	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
	w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
	w &= ~PCI_COMMAND_INTX_DISABLE;
	pci_write_config_word(ha->pdev, PCI_COMMAND, w);

	/* PCIe -- adjust Maximum Read Request Size (2048). */
	if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
		pcie_set_readrq(ha->pdev, 2048);

	ha->chip_revision = ha->pdev->revision;

	return QLA_SUCCESS;
}

/**
 * qlafx00_warm_reset() - Perform warm reset of iSA(CPUs being reset on SOC).
 * @ha: HA context
 *
  */
static inline void
qlafx00_soc_cpu_reset(scsi_qla_host_t *vha)
{
	unsigned long flags = 0;
	struct qla_hw_data *ha = vha->hw;
	int i, core;
	uint32_t cnt;

	/* Set all 4 cores in reset */
	for (i = 0; i < 4; i++) {
		QLAFX00_SET_HBA_SOC_REG(ha,
		    (SOC_SW_RST_CONTROL_REG_CORE0 + 8*i), (0xF01));
	}

	/* Set all 4 core Clock gating control */
	for (i = 0; i < 4; i++) {
		QLAFX00_SET_HBA_SOC_REG(ha,
		    (SOC_SW_RST_CONTROL_REG_CORE0 + 4 + 8*i), (0x01010101));
	}

	/* Reset all units in Fabric */
	QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x11F0101));

	/* Reset all interrupt control registers */
	for (i = 0; i < 115; i++) {
		QLAFX00_SET_HBA_SOC_REG(ha,
		    (SOC_INTERRUPT_SOURCE_I_CONTROL_REG + 4*i), (0x0));
	}

	/* Reset Timers control registers. per core */
	for (core = 0; core < 4; core++)
		for (i = 0; i < 8; i++)
			QLAFX00_SET_HBA_SOC_REG(ha,
			    (SOC_CORE_TIMER_REG + 0x100*core + 4*i), (0x0));

	/* Reset per core IRQ ack register */
	for (core = 0; core < 4; core++)
		QLAFX00_SET_HBA_SOC_REG(ha,
		    (SOC_IRQ_ACK_REG + 0x100*core), (0x3FF));

	/* Set Fabric control and config to defaults */
	QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONTROL_REG, (0x2));
	QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_CONFIG_REG, (0x3));

	spin_lock_irqsave(&ha->hardware_lock, flags);

	/* Kick in Fabric units */
	QLAFX00_SET_HBA_SOC_REG(ha, SOC_FABRIC_RST_CONTROL_REG, (0x0));

	/* Kick in Core0 to start boot process */
	QLAFX00_SET_HBA_SOC_REG(ha, SOC_SW_RST_CONTROL_REG_CORE0, (0xF00));

	/* Wait 10secs for soft-reset to complete. */
	for (cnt = 10; cnt; cnt--) {
		msleep(1000);
		barrier();
	}
	spin_unlock_irqrestore(&ha->hardware_lock, flags);
}

/**
 * qlafx00_soft_reset() - Soft Reset ISPFx00.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
void
qlafx00_soft_reset(scsi_qla_host_t *vha)
{
	struct qla_hw_data *ha = vha->hw;

	if (unlikely(pci_channel_offline(ha->pdev) &&
	    ha->flags.pci_channel_io_perm_failure))
		return;

	ha->isp_ops->disable_intrs(ha);
	qlafx00_soc_cpu_reset(vha);
	ha->isp_ops->enable_intrs(ha);
}

/**
 * qlafx00_chip_diag() - Test ISPFx00 for proper operation.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
int
qlafx00_chip_diag(scsi_qla_host_t *vha)
{
	int rval = 0;
	struct qla_hw_data *ha = vha->hw;
	struct req_que *req = ha->req_q_map[0];

	ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;

	rval = qlafx00_mbx_reg_test(vha);
	if (rval) {
		ql_log(ql_log_warn, vha, 0x1165,
		    "Failed mailbox send register test\n");
	} else {
		/* Flag a successful rval */
		rval = QLA_SUCCESS;
	}
	return rval;
}

void
qlafx00_config_rings(struct scsi_qla_host *vha)
{
	struct qla_hw_data *ha = vha->hw;
	struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
	struct init_cb_fx *icb;
	struct req_que *req = ha->req_q_map[0];
	struct rsp_que *rsp = ha->rsp_q_map[0];

	/* Setup ring parameters in initialization control block. */
	icb = (struct init_cb_fx *)ha->init_cb;
	icb->request_q_outpointer = __constant_cpu_to_le16(0);
	icb->response_q_inpointer = __constant_cpu_to_le16(0);
	icb->request_q_length = cpu_to_le16(req->length);
	icb->response_q_length = cpu_to_le16(rsp->length);
	icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
	icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
	icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
	icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));

	WRT_REG_DWORD(&reg->req_q_in, 0);
	WRT_REG_DWORD(&reg->req_q_out, 0);

	WRT_REG_DWORD(&reg->rsp_q_in, 0);
	WRT_REG_DWORD(&reg->rsp_q_out, 0);

	/* PCI posting */
	RD_REG_DWORD(&reg->rsp_q_out);
}

char *
qlafx00_pci_info_str(struct scsi_qla_host *vha, char *str)
{
	struct qla_hw_data *ha = vha->hw;
	int pcie_reg;

	pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
	if (pcie_reg) {
		strcpy(str, "PCIe iSA");
		return str;
	}
	return str;
}

char *
qlafx00_fw_version_str(struct scsi_qla_host *vha, char *str)
{
	struct qla_hw_data *ha = vha->hw;

	sprintf(str, "%s", ha->mr.fw_version);
	return str;
}

void
qlafx00_enable_intrs(struct qla_hw_data *ha)
{
	unsigned long flags = 0;

	spin_lock_irqsave(&ha->hardware_lock, flags);
	ha->interrupts_on = 1;
	QLAFX00_ENABLE_ICNTRL_REG(ha);
	spin_unlock_irqrestore(&ha->hardware_lock, flags);
}

void
qlafx00_disable_intrs(struct qla_hw_data *ha)
{
	unsigned long flags = 0;

	spin_lock_irqsave(&ha->hardware_lock, flags);
	ha->interrupts_on = 0;
	QLAFX00_DISABLE_ICNTRL_REG(ha);
	spin_unlock_irqrestore(&ha->hardware_lock, flags);
}

static void
qlafx00_tmf_iocb_timeout(void *data)
{
	srb_t *sp = (srb_t *)data;
	struct srb_iocb *tmf = &sp->u.iocb_cmd;

710
	tmf->u.tmf.comp_status = cpu_to_le16((uint16_t)CS_TIMEOUT);
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	complete(&tmf->u.tmf.comp);
}

static void
qlafx00_tmf_sp_done(void *data, void *ptr, int res)
{
	srb_t *sp = (srb_t *)ptr;
	struct srb_iocb *tmf = &sp->u.iocb_cmd;

	complete(&tmf->u.tmf.comp);
}

static int
qlafx00_async_tm_cmd(fc_port_t *fcport, uint32_t flags,
		     uint32_t lun, uint32_t tag)
{
	scsi_qla_host_t *vha = fcport->vha;
	struct srb_iocb *tm_iocb;
	srb_t *sp;
	int rval = QLA_FUNCTION_FAILED;

	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
	if (!sp)
		goto done;

	tm_iocb = &sp->u.iocb_cmd;
	sp->type = SRB_TM_CMD;
	sp->name = "tmf";
	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha));
	tm_iocb->u.tmf.flags = flags;
	tm_iocb->u.tmf.lun = lun;
	tm_iocb->u.tmf.data = tag;
	sp->done = qlafx00_tmf_sp_done;
	tm_iocb->timeout = qlafx00_tmf_iocb_timeout;
	init_completion(&tm_iocb->u.tmf.comp);

	rval = qla2x00_start_sp(sp);
	if (rval != QLA_SUCCESS)
		goto done_free_sp;

	ql_dbg(ql_dbg_async, vha, 0x507b,
	    "Task management command issued target_id=%x\n",
	    fcport->tgt_id);

	wait_for_completion(&tm_iocb->u.tmf.comp);

	rval = tm_iocb->u.tmf.comp_status == CS_COMPLETE ?
	    QLA_SUCCESS : QLA_FUNCTION_FAILED;

done_free_sp:
	sp->free(vha, sp);
done:
	return rval;
}

int
qlafx00_abort_target(fc_port_t *fcport, unsigned int l, int tag)
{
	return qlafx00_async_tm_cmd(fcport, TCF_TARGET_RESET, l, tag);
}

int
qlafx00_lun_reset(fc_port_t *fcport, unsigned int l, int tag)
{
	return qlafx00_async_tm_cmd(fcport, TCF_LUN_RESET, l, tag);
}

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int
qlafx00_loop_reset(scsi_qla_host_t *vha)
{
	int ret;
	struct fc_port *fcport;
	struct qla_hw_data *ha = vha->hw;

	if (ql2xtargetreset) {
		list_for_each_entry(fcport, &vha->vp_fcports, list) {
			if (fcport->port_type != FCT_TARGET)
				continue;

			ret = ha->isp_ops->target_reset(fcport, 0, 0);
			if (ret != QLA_SUCCESS) {
				ql_dbg(ql_dbg_taskm, vha, 0x803d,
				    "Bus Reset failed: Reset=%d "
				    "d_id=%x.\n", ret, fcport->d_id.b24);
			}
		}
	}
	return QLA_SUCCESS;
}

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int
qlafx00_iospace_config(struct qla_hw_data *ha)
{
	if (pci_request_selected_regions(ha->pdev, ha->bars,
	    QLA2XXX_DRIVER_NAME)) {
		ql_log_pci(ql_log_fatal, ha->pdev, 0x014e,
		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
		    pci_name(ha->pdev));
		goto iospace_error_exit;
	}

	/* Use MMIO operations for all accesses. */
	if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
		ql_log_pci(ql_log_warn, ha->pdev, 0x014f,
		    "Invalid pci I/O region size (%s).\n",
		    pci_name(ha->pdev));
		goto iospace_error_exit;
	}
	if (pci_resource_len(ha->pdev, 0) < BAR0_LEN_FX00) {
		ql_log_pci(ql_log_warn, ha->pdev, 0x0127,
		    "Invalid PCI mem BAR0 region size (%s), aborting\n",
			pci_name(ha->pdev));
		goto iospace_error_exit;
	}

	ha->cregbase =
	    ioremap_nocache(pci_resource_start(ha->pdev, 0), BAR0_LEN_FX00);
	if (!ha->cregbase) {
		ql_log_pci(ql_log_fatal, ha->pdev, 0x0128,
		    "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
		goto iospace_error_exit;
	}

	if (!(pci_resource_flags(ha->pdev, 2) & IORESOURCE_MEM)) {
		ql_log_pci(ql_log_warn, ha->pdev, 0x0129,
		    "region #2 not an MMIO resource (%s), aborting\n",
		    pci_name(ha->pdev));
		goto iospace_error_exit;
	}
	if (pci_resource_len(ha->pdev, 2) < BAR2_LEN_FX00) {
		ql_log_pci(ql_log_warn, ha->pdev, 0x012a,
		    "Invalid PCI mem BAR2 region size (%s), aborting\n",
			pci_name(ha->pdev));
		goto iospace_error_exit;
	}

	ha->iobase =
	    ioremap_nocache(pci_resource_start(ha->pdev, 2), BAR2_LEN_FX00);
	if (!ha->iobase) {
		ql_log_pci(ql_log_fatal, ha->pdev, 0x012b,
		    "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
		goto iospace_error_exit;
	}

	/* Determine queue resources */
	ha->max_req_queues = ha->max_rsp_queues = 1;

	ql_log_pci(ql_log_info, ha->pdev, 0x012c,
	    "Bars 0x%x, iobase0 0x%p, iobase2 0x%p\n",
	    ha->bars, ha->cregbase, ha->iobase);

	return 0;

iospace_error_exit:
	return -ENOMEM;
}

static void
qlafx00_save_queue_ptrs(struct scsi_qla_host *vha)
{
	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];

	req->length_fx00 = req->length;
	req->ring_fx00 = req->ring;
	req->dma_fx00 = req->dma;

	rsp->length_fx00 = rsp->length;
	rsp->ring_fx00 = rsp->ring;
	rsp->dma_fx00 = rsp->dma;

	ql_dbg(ql_dbg_init, vha, 0x012d,
	    "req: %p, ring_fx00: %p, length_fx00: 0x%x,"
	    "req->dma_fx00: 0x%llx\n", req, req->ring_fx00,
	    req->length_fx00, (u64)req->dma_fx00);

	ql_dbg(ql_dbg_init, vha, 0x012e,
	    "rsp: %p, ring_fx00: %p, length_fx00: 0x%x,"
	    "rsp->dma_fx00: 0x%llx\n", rsp, rsp->ring_fx00,
	    rsp->length_fx00, (u64)rsp->dma_fx00);
}

static int
qlafx00_config_queues(struct scsi_qla_host *vha)
{
	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];
	dma_addr_t bar2_hdl = pci_resource_start(ha->pdev, 2);

	req->length = ha->req_que_len;
	req->ring = (void *)ha->iobase + ha->req_que_off;
	req->dma = bar2_hdl + ha->req_que_off;
	if ((!req->ring) || (req->length == 0)) {
		ql_log_pci(ql_log_info, ha->pdev, 0x012f,
		    "Unable to allocate memory for req_ring\n");
		return QLA_FUNCTION_FAILED;
	}

	ql_dbg(ql_dbg_init, vha, 0x0130,
	    "req: %p req_ring pointer %p req len 0x%x "
	    "req off 0x%x\n, req->dma: 0x%llx",
	    req, req->ring, req->length,
	    ha->req_que_off, (u64)req->dma);

	rsp->length = ha->rsp_que_len;
	rsp->ring = (void *)ha->iobase + ha->rsp_que_off;
	rsp->dma = bar2_hdl + ha->rsp_que_off;
	if ((!rsp->ring) || (rsp->length == 0)) {
		ql_log_pci(ql_log_info, ha->pdev, 0x0131,
		    "Unable to allocate memory for rsp_ring\n");
		return QLA_FUNCTION_FAILED;
	}

	ql_dbg(ql_dbg_init, vha, 0x0132,
	    "rsp: %p rsp_ring pointer %p rsp len 0x%x "
	    "rsp off 0x%x, rsp->dma: 0x%llx\n",
	    rsp, rsp->ring, rsp->length,
	    ha->rsp_que_off, (u64)rsp->dma);

	return QLA_SUCCESS;
}

static int
qlafx00_init_fw_ready(scsi_qla_host_t *vha)
{
	int rval = 0;
	unsigned long wtime;
	uint16_t wait_time;	/* Wait time */
	struct qla_hw_data *ha = vha->hw;
	struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
	uint32_t aenmbx, aenmbx7 = 0;
	uint32_t state[5];
	bool done = false;

	/* 30 seconds wait - Adjust if required */
	wait_time = 30;

	/* wait time before firmware ready */
	wtime = jiffies + (wait_time * HZ);
	do {
		aenmbx = RD_REG_DWORD(&reg->aenmailbox0);
		barrier();
		ql_dbg(ql_dbg_mbx, vha, 0x0133,
		    "aenmbx: 0x%x\n", aenmbx);

		switch (aenmbx) {
		case MBA_FW_NOT_STARTED:
		case MBA_FW_STARTING:
			break;

		case MBA_SYSTEM_ERR:
		case MBA_REQ_TRANSFER_ERR:
		case MBA_RSP_TRANSFER_ERR:
		case MBA_FW_INIT_FAILURE:
			qlafx00_soft_reset(vha);
			break;

		case MBA_FW_RESTART_CMPLT:
			/* Set the mbx and rqstq intr code */
			aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
			ha->mbx_intr_code = MSW(aenmbx7);
			ha->rqstq_intr_code = LSW(aenmbx7);
			ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
			ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
			ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
			ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);
			WRT_REG_DWORD(&reg->aenmailbox0, 0);
			RD_REG_DWORD_RELAXED(&reg->aenmailbox0);
			ql_dbg(ql_dbg_init, vha, 0x0134,
			    "f/w returned mbx_intr_code: 0x%x, "
			    "rqstq_intr_code: 0x%x\n",
			    ha->mbx_intr_code, ha->rqstq_intr_code);
			QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
			rval = QLA_SUCCESS;
			done = true;
			break;

		default:
			/* If fw is apparently not ready. In order to continue,
			 * we might need to issue Mbox cmd, but the problem is
			 * that the DoorBell vector values that come with the
			 * 8060 AEN are most likely gone by now (and thus no
			 * bell would be rung on the fw side when mbox cmd is
			 * issued). We have to therefore grab the 8060 AEN
			 * shadow regs (filled in by FW when the last 8060
			 * AEN was being posted).
			 * Do the following to determine what is needed in
			 * order to get the FW ready:
			 * 1. reload the 8060 AEN values from the shadow regs
			 * 2. clear int status to get rid of possible pending
			 *    interrupts
			 * 3. issue Get FW State Mbox cmd to determine fw state
			 * Set the mbx and rqstq intr code from Shadow Regs
			 */
			aenmbx7 = RD_REG_DWORD(&reg->initval7);
			ha->mbx_intr_code = MSW(aenmbx7);
			ha->rqstq_intr_code = LSW(aenmbx7);
			ha->req_que_off = RD_REG_DWORD(&reg->initval1);
			ha->rsp_que_off = RD_REG_DWORD(&reg->initval3);
			ha->req_que_len = RD_REG_DWORD(&reg->initval5);
			ha->rsp_que_len = RD_REG_DWORD(&reg->initval6);
			ql_dbg(ql_dbg_init, vha, 0x0135,
			    "f/w returned mbx_intr_code: 0x%x, "
			    "rqstq_intr_code: 0x%x\n",
			    ha->mbx_intr_code, ha->rqstq_intr_code);
			QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);

			/* Get the FW state */
			rval = qlafx00_get_firmware_state(vha, state);
			if (rval != QLA_SUCCESS) {
				/* Retry if timer has not expired */
				break;
			}

			if (state[0] == FSTATE_FX00_CONFIG_WAIT) {
				/* Firmware is waiting to be
				 * initialized by driver
				 */
				rval = QLA_SUCCESS;
				done = true;
				break;
			}

			/* Issue driver shutdown and wait until f/w recovers.
			 * Driver should continue to poll until 8060 AEN is
			 * received indicating firmware recovery.
			 */
			ql_dbg(ql_dbg_init, vha, 0x0136,
			    "Sending Driver shutdown fw_state 0x%x\n",
			    state[0]);

			rval = qlafx00_driver_shutdown(vha, 10);
			if (rval != QLA_SUCCESS) {
				rval = QLA_FUNCTION_FAILED;
				break;
			}
			msleep(500);

			wtime = jiffies + (wait_time * HZ);
			break;
		}

		if (!done) {
			if (time_after_eq(jiffies, wtime)) {
				ql_dbg(ql_dbg_init, vha, 0x0137,
				    "Init f/w failed: aen[7]: 0x%x\n",
				    RD_REG_DWORD(&reg->aenmailbox7));
				rval = QLA_FUNCTION_FAILED;
				done = true;
				break;
			}
			/* Delay for a while */
			msleep(500);
		}
	} while (!done);

	if (rval)
		ql_dbg(ql_dbg_init, vha, 0x0138,
		    "%s **** FAILED ****.\n", __func__);
	else
		ql_dbg(ql_dbg_init, vha, 0x0139,
		    "%s **** SUCCESS ****.\n", __func__);

	return rval;
}

/*
 * qlafx00_fw_ready() - Waits for firmware ready.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
int
qlafx00_fw_ready(scsi_qla_host_t *vha)
{
	int		rval;
	unsigned long	wtime;
	uint16_t	wait_time;	/* Wait time if loop is coming ready */
	uint32_t	state[5];

	rval = QLA_SUCCESS;

	wait_time = 10;

	/* wait time before firmware ready */
	wtime = jiffies + (wait_time * HZ);

	/* Wait for ISP to finish init */
	if (!vha->flags.init_done)
		ql_dbg(ql_dbg_init, vha, 0x013a,
		    "Waiting for init to complete...\n");

	do {
		rval = qlafx00_get_firmware_state(vha, state);

		if (rval == QLA_SUCCESS) {
			if (state[0] == FSTATE_FX00_INITIALIZED) {
				ql_dbg(ql_dbg_init, vha, 0x013b,
				    "fw_state=%x\n", state[0]);
				rval = QLA_SUCCESS;
					break;
			}
		}
		rval = QLA_FUNCTION_FAILED;

		if (time_after_eq(jiffies, wtime))
			break;

		/* Delay for a while */
		msleep(500);

		ql_dbg(ql_dbg_init, vha, 0x013c,
		    "fw_state=%x curr time=%lx.\n", state[0], jiffies);
	} while (1);


	if (rval)
		ql_dbg(ql_dbg_init, vha, 0x013d,
		    "Firmware ready **** FAILED ****.\n");
	else
		ql_dbg(ql_dbg_init, vha, 0x013e,
		    "Firmware ready **** SUCCESS ****.\n");

	return rval;
}

static int
qlafx00_find_all_targets(scsi_qla_host_t *vha,
	struct list_head *new_fcports)
{
	int		rval;
	uint16_t	tgt_id;
	fc_port_t	*fcport, *new_fcport;
	int		found;
	struct qla_hw_data *ha = vha->hw;

	rval = QLA_SUCCESS;

	if (!test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
		return QLA_FUNCTION_FAILED;

	if ((atomic_read(&vha->loop_down_timer) ||
	     STATE_TRANSITION(vha))) {
		atomic_set(&vha->loop_down_timer, 0);
		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
		return QLA_FUNCTION_FAILED;
	}

	ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x2088,
	    "Listing Target bit map...\n");
	ql_dump_buffer(ql_dbg_disc + ql_dbg_init, vha,
	    0x2089, (uint8_t *)ha->gid_list, 32);

	/* Allocate temporary rmtport for any new rmtports discovered. */
	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
	if (new_fcport == NULL)
		return QLA_MEMORY_ALLOC_FAILED;

	for_each_set_bit(tgt_id, (void *)ha->gid_list,
	    QLAFX00_TGT_NODE_LIST_SIZE) {

		/* Send get target node info */
		new_fcport->tgt_id = tgt_id;
		rval = qlafx00_fx_disc(vha, new_fcport,
		    FXDISC_GET_TGT_NODE_INFO);
		if (rval != QLA_SUCCESS) {
			ql_log(ql_log_warn, vha, 0x208a,
			    "Target info scan failed -- assuming zero-entry "
			    "result...\n");
			continue;
		}

		/* Locate matching device in database. */
		found = 0;
		list_for_each_entry(fcport, &vha->vp_fcports, list) {
			if (memcmp(new_fcport->port_name,
			    fcport->port_name, WWN_SIZE))
				continue;

			found++;

			/*
			 * If tgt_id is same and state FCS_ONLINE, nothing
			 * changed.
			 */
			if (fcport->tgt_id == new_fcport->tgt_id &&
			    atomic_read(&fcport->state) == FCS_ONLINE)
				break;

			/*
			 * Tgt ID changed or device was marked to be updated.
			 */
			ql_dbg(ql_dbg_disc + ql_dbg_init, vha, 0x208b,
			    "TGT-ID Change(%s): Present tgt id: "
			    "0x%x state: 0x%x "
			    "wwnn = %llx wwpn = %llx.\n",
			    __func__, fcport->tgt_id,
			    atomic_read(&fcport->state),
			    (unsigned long long)wwn_to_u64(fcport->node_name),
			    (unsigned long long)wwn_to_u64(fcport->port_name));

			ql_log(ql_log_info, vha, 0x208c,
			    "TGT-ID Announce(%s): Discovered tgt "
			    "id 0x%x wwnn = %llx "
			    "wwpn = %llx.\n", __func__, new_fcport->tgt_id,
			    (unsigned long long)
			    wwn_to_u64(new_fcport->node_name),
			    (unsigned long long)
			    wwn_to_u64(new_fcport->port_name));

			if (atomic_read(&fcport->state) != FCS_ONLINE) {
				fcport->old_tgt_id = fcport->tgt_id;
				fcport->tgt_id = new_fcport->tgt_id;
				ql_log(ql_log_info, vha, 0x208d,
				   "TGT-ID: New fcport Added: %p\n", fcport);
				qla2x00_update_fcport(vha, fcport);
			} else {
				ql_log(ql_log_info, vha, 0x208e,
				    " Existing TGT-ID %x did not get "
				    " offline event from firmware.\n",
				    fcport->old_tgt_id);
				qla2x00_mark_device_lost(vha, fcport, 0, 0);
				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
				kfree(new_fcport);
				return rval;
			}
			break;
		}

		if (found)
			continue;

		/* If device was not in our fcports list, then add it. */
		list_add_tail(&new_fcport->list, new_fcports);

		/* Allocate a new replacement fcport. */
		new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
		if (new_fcport == NULL)
			return QLA_MEMORY_ALLOC_FAILED;
	}

	kfree(new_fcport);
	return rval;
}

/*
 * qlafx00_configure_all_targets
 *      Setup target devices with node ID's.
 *
 * Input:
 *      ha = adapter block pointer.
 *
 * Returns:
 *      0 = success.
 *      BIT_0 = error
 */
static int
qlafx00_configure_all_targets(scsi_qla_host_t *vha)
{
	int rval;
	fc_port_t *fcport, *rmptemp;
	LIST_HEAD(new_fcports);

	rval = qlafx00_fx_disc(vha, &vha->hw->mr.fcport,
	    FXDISC_GET_TGT_NODE_LIST);
	if (rval != QLA_SUCCESS) {
		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
		return rval;
	}

	rval = qlafx00_find_all_targets(vha, &new_fcports);
	if (rval != QLA_SUCCESS) {
		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
		return rval;
	}

	/*
	 * Delete all previous devices marked lost.
	 */
	list_for_each_entry(fcport, &vha->vp_fcports, list) {
		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
			break;

		if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
			if (fcport->port_type != FCT_INITIATOR)
				qla2x00_mark_device_lost(vha, fcport, 0, 0);
		}
	}

	/*
	 * Add the new devices to our devices list.
	 */
	list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
			break;

		qla2x00_update_fcport(vha, fcport);
		list_move_tail(&fcport->list, &vha->vp_fcports);
		ql_log(ql_log_info, vha, 0x208f,
		    "Attach new target id 0x%x wwnn = %llx "
		    "wwpn = %llx.\n",
		    fcport->tgt_id,
		    (unsigned long long)wwn_to_u64(fcport->node_name),
		    (unsigned long long)wwn_to_u64(fcport->port_name));
	}

	/* Free all new device structures not processed. */
	list_for_each_entry_safe(fcport, rmptemp, &new_fcports, list) {
		list_del(&fcport->list);
		kfree(fcport);
	}

	return rval;
}

/*
 * qlafx00_configure_devices
 *      Updates Fibre Channel Device Database with what is actually on loop.
 *
 * Input:
 *      ha                = adapter block pointer.
 *
 * Returns:
 *      0 = success.
 *      1 = error.
 *      2 = database was full and device was not configured.
 */
int
qlafx00_configure_devices(scsi_qla_host_t *vha)
{
	int  rval;
	unsigned long flags, save_flags;
	rval = QLA_SUCCESS;

	save_flags = flags = vha->dpc_flags;

	ql_dbg(ql_dbg_disc, vha, 0x2090,
	    "Configure devices -- dpc flags =0x%lx\n", flags);

	rval = qlafx00_configure_all_targets(vha);

	if (rval == QLA_SUCCESS) {
		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
			rval = QLA_FUNCTION_FAILED;
		} else {
			atomic_set(&vha->loop_state, LOOP_READY);
			ql_log(ql_log_info, vha, 0x2091,
			    "Device Ready\n");
		}
	}

	if (rval) {
		ql_dbg(ql_dbg_disc, vha, 0x2092,
		    "%s *** FAILED ***.\n", __func__);
	} else {
		ql_dbg(ql_dbg_disc, vha, 0x2093,
		    "%s: exiting normally.\n", __func__);
	}
	return rval;
}

static void
qlafx00_abort_isp_cleanup(scsi_qla_host_t *vha)
{
	struct qla_hw_data *ha = vha->hw;
	fc_port_t *fcport;

	vha->flags.online = 0;
	ha->flags.chip_reset_done = 0;
	ha->mr.fw_hbt_en = 0;
	clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
	vha->qla_stats.total_isp_aborts++;

	ql_log(ql_log_info, vha, 0x013f,
	    "Performing ISP error recovery - ha = %p.\n", ha);

	ha->isp_ops->reset_chip(vha);

	if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
		atomic_set(&vha->loop_state, LOOP_DOWN);
		atomic_set(&vha->loop_down_timer,
		    QLAFX00_LOOP_DOWN_TIME);
	} else {
		if (!atomic_read(&vha->loop_down_timer))
			atomic_set(&vha->loop_down_timer,
			    QLAFX00_LOOP_DOWN_TIME);
	}

	/* Clear all async request states across all VPs. */
	list_for_each_entry(fcport, &vha->vp_fcports, list) {
		fcport->flags = 0;
		if (atomic_read(&fcport->state) == FCS_ONLINE)
			qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
	}

	if (!ha->flags.eeh_busy) {
		/* Requeue all commands in outstanding command list. */
		qla2x00_abort_all_cmds(vha, DID_RESET << 16);
	}

	qla2x00_free_irqs(vha);
	set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);

	/* Clear the Interrupts */
	QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);

	ql_log(ql_log_info, vha, 0x0140,
	    "%s Done done - ha=%p.\n", __func__, ha);
}

/**
 * qlafx00_init_response_q_entries() - Initializes response queue entries.
 * @ha: HA context
 *
 * Beginning of request ring has initialization control block already built
 * by nvram config routine.
 *
 * Returns 0 on success.
 */
void
qlafx00_init_response_q_entries(struct rsp_que *rsp)
{
	uint16_t cnt;
	response_t *pkt;

	rsp->ring_ptr = rsp->ring;
	rsp->ring_index    = 0;
	rsp->status_srb = NULL;
	pkt = rsp->ring_ptr;
	for (cnt = 0; cnt < rsp->length; cnt++) {
		pkt->signature = RESPONSE_PROCESSED;
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		WRT_REG_DWORD((void __iomem *)&pkt->signature,
		    RESPONSE_PROCESSED);
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		pkt++;
	}
}

int
qlafx00_rescan_isp(scsi_qla_host_t *vha)
{
	uint32_t status = QLA_FUNCTION_FAILED;
	struct qla_hw_data *ha = vha->hw;
	struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;
	uint32_t aenmbx7;

	qla2x00_request_irqs(ha, ha->rsp_q_map[0]);

	aenmbx7 = RD_REG_DWORD(&reg->aenmailbox7);
	ha->mbx_intr_code = MSW(aenmbx7);
	ha->rqstq_intr_code = LSW(aenmbx7);
	ha->req_que_off = RD_REG_DWORD(&reg->aenmailbox1);
	ha->rsp_que_off = RD_REG_DWORD(&reg->aenmailbox3);
	ha->req_que_len = RD_REG_DWORD(&reg->aenmailbox5);
	ha->rsp_que_len = RD_REG_DWORD(&reg->aenmailbox6);

	ql_dbg(ql_dbg_disc, vha, 0x2094,
	    "fw returned mbx_intr_code: 0x%x, rqstq_intr_code: 0x%x "
	    " Req que offset 0x%x Rsp que offset 0x%x\n",
	    ha->mbx_intr_code, ha->rqstq_intr_code,
	    ha->req_que_off, ha->rsp_que_len);

	/* Clear the Interrupts */
	QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);

	status = qla2x00_init_rings(vha);
	if (!status) {
		vha->flags.online = 1;

		/* if no cable then assume it's good */
		if ((vha->device_flags & DFLG_NO_CABLE))
			status = 0;
		/* Register system information */
		if (qlafx00_fx_disc(vha,
		    &vha->hw->mr.fcport, FXDISC_REG_HOST_INFO))
			ql_dbg(ql_dbg_disc, vha, 0x2095,
			    "failed to register host info\n");
	}
	scsi_unblock_requests(vha->host);
	return status;
}

void
qlafx00_timer_routine(scsi_qla_host_t *vha)
{
	struct qla_hw_data *ha = vha->hw;
	uint32_t fw_heart_beat;
	uint32_t aenmbx0;
	struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;

	/* Check firmware health */
	if (ha->mr.fw_hbt_cnt)
		ha->mr.fw_hbt_cnt--;
	else {
		if ((!ha->flags.mr_reset_hdlr_active) &&
		    (!test_bit(UNLOADING, &vha->dpc_flags)) &&
		    (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&
		    (ha->mr.fw_hbt_en)) {
			fw_heart_beat = RD_REG_DWORD(&reg->fwheartbeat);
			if (fw_heart_beat != ha->mr.old_fw_hbt_cnt) {
				ha->mr.old_fw_hbt_cnt = fw_heart_beat;
				ha->mr.fw_hbt_miss_cnt = 0;
			} else {
				ha->mr.fw_hbt_miss_cnt++;
				if (ha->mr.fw_hbt_miss_cnt ==
				    QLAFX00_HEARTBEAT_MISS_CNT) {
					set_bit(ISP_ABORT_NEEDED,
					    &vha->dpc_flags);
					qla2xxx_wake_dpc(vha);
					ha->mr.fw_hbt_miss_cnt = 0;
				}
			}
		}
		ha->mr.fw_hbt_cnt = QLAFX00_HEARTBEAT_INTERVAL;
	}

	if (test_bit(FX00_RESET_RECOVERY, &vha->dpc_flags)) {
		/* Reset recovery to be performed in timer routine */
		aenmbx0 = RD_REG_DWORD(&reg->aenmailbox0);
		if (ha->mr.fw_reset_timer_exp) {
			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
			qla2xxx_wake_dpc(vha);
			ha->mr.fw_reset_timer_exp = 0;
		} else if (aenmbx0 == MBA_FW_RESTART_CMPLT) {
			/* Wake up DPC to rescan the targets */
			set_bit(FX00_TARGET_SCAN, &vha->dpc_flags);
			clear_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
			qla2xxx_wake_dpc(vha);
			ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
		} else if ((aenmbx0 == MBA_FW_STARTING) &&
		    (!ha->mr.fw_hbt_en)) {
			ha->mr.fw_hbt_en = 1;
		} else if (!ha->mr.fw_reset_timer_tick) {
			if (aenmbx0 == ha->mr.old_aenmbx0_state)
				ha->mr.fw_reset_timer_exp = 1;
			ha->mr.fw_reset_timer_tick = QLAFX00_RESET_INTERVAL;
		} else if (aenmbx0 == 0xFFFFFFFF) {
			uint32_t data0, data1;

			data0 = QLAFX00_RD_REG(ha,
			    QLAFX00_BAR1_BASE_ADDR_REG);
			data1 = QLAFX00_RD_REG(ha,
			    QLAFX00_PEX0_WIN0_BASE_ADDR_REG);

			data0 &= 0xffff0000;
			data1 &= 0x0000ffff;

			QLAFX00_WR_REG(ha,
			    QLAFX00_PEX0_WIN0_BASE_ADDR_REG,
			    (data0 | data1));
		} else if ((aenmbx0 & 0xFF00) == MBA_FW_POLL_STATE) {
			ha->mr.fw_reset_timer_tick =
			    QLAFX00_MAX_RESET_INTERVAL;
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		} else if (aenmbx0 == MBA_FW_RESET_FCT) {
			ha->mr.fw_reset_timer_tick =
			    QLAFX00_MAX_RESET_INTERVAL;
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		}
		ha->mr.old_aenmbx0_state = aenmbx0;
		ha->mr.fw_reset_timer_tick--;
	}
}

/*
 *  qlfx00a_reset_initialize
 *      Re-initialize after a iSA device reset.
 *
 * Input:
 *      ha  = adapter block pointer.
 *
 * Returns:
 *      0 = success
 */
int
qlafx00_reset_initialize(scsi_qla_host_t *vha)
{
	struct qla_hw_data *ha = vha->hw;

	if (vha->device_flags & DFLG_DEV_FAILED) {
		ql_dbg(ql_dbg_init, vha, 0x0142,
		    "Device in failed state\n");
		return QLA_SUCCESS;
	}

	ha->flags.mr_reset_hdlr_active = 1;

	if (vha->flags.online) {
		scsi_block_requests(vha->host);
		qlafx00_abort_isp_cleanup(vha);
	}

	ql_log(ql_log_info, vha, 0x0143,
	    "(%s): succeeded.\n", __func__);
	ha->flags.mr_reset_hdlr_active = 0;
	return QLA_SUCCESS;
}

/*
 *  qlafx00_abort_isp
 *      Resets ISP and aborts all outstanding commands.
 *
 * Input:
 *      ha  = adapter block pointer.
 *
 * Returns:
 *      0 = success
 */
int
qlafx00_abort_isp(scsi_qla_host_t *vha)
{
	struct qla_hw_data *ha = vha->hw;

	if (vha->flags.online) {
		if (unlikely(pci_channel_offline(ha->pdev) &&
		    ha->flags.pci_channel_io_perm_failure)) {
			clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
			return QLA_SUCCESS;
		}

		scsi_block_requests(vha->host);
		qlafx00_abort_isp_cleanup(vha);
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	} else {
		scsi_block_requests(vha->host);
		clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
		vha->qla_stats.total_isp_aborts++;
		ha->isp_ops->reset_chip(vha);
		set_bit(FX00_RESET_RECOVERY, &vha->dpc_flags);
		/* Clear the Interrupts */
		QLAFX00_CLR_INTR_REG(ha, QLAFX00_HST_INT_STS_BITS);
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	}

	ql_log(ql_log_info, vha, 0x0145,
	    "(%s): succeeded.\n", __func__);

	return QLA_SUCCESS;
}

static inline fc_port_t*
qlafx00_get_fcport(struct scsi_qla_host *vha, int tgt_id)
{
	fc_port_t	*fcport;

	/* Check for matching device in remote port list. */
	fcport = NULL;
	list_for_each_entry(fcport, &vha->vp_fcports, list) {
		if (fcport->tgt_id == tgt_id) {
			ql_dbg(ql_dbg_async, vha, 0x5072,
			    "Matching fcport(%p) found with TGT-ID: 0x%x "
			    "and Remote TGT_ID: 0x%x\n",
			    fcport, fcport->tgt_id, tgt_id);
			break;
		}
	}
	return fcport;
}

static void
qlafx00_tgt_detach(struct scsi_qla_host *vha, int tgt_id)
{
	fc_port_t	*fcport;

	ql_log(ql_log_info, vha, 0x5073,
	    "Detach TGT-ID: 0x%x\n", tgt_id);

	fcport = qlafx00_get_fcport(vha, tgt_id);
	if (!fcport)
		return;

	qla2x00_mark_device_lost(vha, fcport, 0, 0);

	return;
}

int
qlafx00_process_aen(struct scsi_qla_host *vha, struct qla_work_evt *evt)
{
	int rval = 0;
	uint32_t aen_code, aen_data;

	aen_code = FCH_EVT_VENDOR_UNIQUE;
	aen_data = evt->u.aenfx.evtcode;

	switch (evt->u.aenfx.evtcode) {
	case QLAFX00_MBA_PORT_UPDATE:		/* Port database update */
		if (evt->u.aenfx.mbx[1] == 0) {
			if (evt->u.aenfx.mbx[2] == 1) {
				if (!vha->flags.fw_tgt_reported)
					vha->flags.fw_tgt_reported = 1;
				atomic_set(&vha->loop_down_timer, 0);
				atomic_set(&vha->loop_state, LOOP_UP);
				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
				qla2xxx_wake_dpc(vha);
			} else if (evt->u.aenfx.mbx[2] == 2) {
				qlafx00_tgt_detach(vha, evt->u.aenfx.mbx[3]);
			}
		} else if (evt->u.aenfx.mbx[1] == 0xffff) {
			if (evt->u.aenfx.mbx[2] == 1) {
				if (!vha->flags.fw_tgt_reported)
					vha->flags.fw_tgt_reported = 1;
				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
			} else if (evt->u.aenfx.mbx[2] == 2) {
				vha->device_flags |= DFLG_NO_CABLE;
				qla2x00_mark_all_devices_lost(vha, 1);
			}
		}
		break;
	case QLAFX00_MBA_LINK_UP:
		aen_code = FCH_EVT_LINKUP;
		aen_data = 0;
		break;
	case QLAFX00_MBA_LINK_DOWN:
		aen_code = FCH_EVT_LINKDOWN;
		aen_data = 0;
		break;
	}

	fc_host_post_event(vha->host, fc_get_event_number(),
	    aen_code, aen_data);

	return rval;
}

static void
qlafx00_update_host_attr(scsi_qla_host_t *vha, struct port_info_data *pinfo)
{
	u64 port_name = 0, node_name = 0;

	port_name = (unsigned long long)wwn_to_u64(pinfo->port_name);
	node_name = (unsigned long long)wwn_to_u64(pinfo->node_name);

	fc_host_node_name(vha->host) = node_name;
	fc_host_port_name(vha->host) = port_name;
	if (!pinfo->port_type)
		vha->hw->current_topology = ISP_CFG_F;
	if (pinfo->link_status == QLAFX00_LINK_STATUS_UP)
		atomic_set(&vha->loop_state, LOOP_READY);
	else if (pinfo->link_status == QLAFX00_LINK_STATUS_DOWN)
		atomic_set(&vha->loop_state, LOOP_DOWN);
	vha->hw->link_data_rate = (uint16_t)pinfo->link_config;
}

static void
qla2x00_fxdisc_iocb_timeout(void *data)
{
	srb_t *sp = (srb_t *)data;
	struct srb_iocb *lio = &sp->u.iocb_cmd;

	complete(&lio->u.fxiocb.fxiocb_comp);
}

static void
qla2x00_fxdisc_sp_done(void *data, void *ptr, int res)
{
	srb_t *sp = (srb_t *)ptr;
	struct srb_iocb *lio = &sp->u.iocb_cmd;

	complete(&lio->u.fxiocb.fxiocb_comp);
}

int
1771
qlafx00_fx_disc(scsi_qla_host_t *vha, fc_port_t *fcport, uint16_t fx_type)
1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796
{
	srb_t *sp;
	struct srb_iocb *fdisc;
	int rval = QLA_FUNCTION_FAILED;
	struct qla_hw_data *ha = vha->hw;
	struct host_system_info *phost_info;
	struct register_host_info *preg_hsi;
	struct new_utsname *p_sysid = NULL;
	struct timeval tv;

	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
	if (!sp)
		goto done;

	fdisc = &sp->u.iocb_cmd;
	switch (fx_type) {
	case FXDISC_GET_CONFIG_INFO:
	fdisc->u.fxiocb.flags =
		    SRB_FXDISC_RESP_DMA_VALID;
		fdisc->u.fxiocb.rsp_len = sizeof(struct config_info_data);
		break;
	case FXDISC_GET_PORT_INFO:
		fdisc->u.fxiocb.flags =
		    SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
		fdisc->u.fxiocb.rsp_len = QLAFX00_PORT_DATA_INFO;
1797
		fdisc->u.fxiocb.req_data = cpu_to_le32(fcport->port_id);
1798 1799 1800 1801 1802
		break;
	case FXDISC_GET_TGT_NODE_INFO:
		fdisc->u.fxiocb.flags =
		    SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
		fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_INFO;
1803
		fdisc->u.fxiocb.req_data = cpu_to_le32(fcport->tgt_id);
1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888
		break;
	case FXDISC_GET_TGT_NODE_LIST:
		fdisc->u.fxiocb.flags =
		    SRB_FXDISC_RESP_DMA_VALID | SRB_FXDISC_REQ_DWRD_VALID;
		fdisc->u.fxiocb.rsp_len = QLAFX00_TGT_NODE_LIST_SIZE;
		break;
	case FXDISC_REG_HOST_INFO:
		fdisc->u.fxiocb.flags = SRB_FXDISC_REQ_DMA_VALID;
		fdisc->u.fxiocb.req_len = sizeof(struct register_host_info);
		p_sysid = utsname();
		if (!p_sysid) {
			ql_log(ql_log_warn, vha, 0x303c,
			    "Not able to get the system informtion\n");
			goto done_free_sp;
		}
		break;
	default:
		break;
	}

	if (fdisc->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
		fdisc->u.fxiocb.req_addr = dma_alloc_coherent(&ha->pdev->dev,
		    fdisc->u.fxiocb.req_len,
		    &fdisc->u.fxiocb.req_dma_handle, GFP_KERNEL);
		if (!fdisc->u.fxiocb.req_addr)
			goto done_free_sp;

		if (fx_type == FXDISC_REG_HOST_INFO) {
			preg_hsi = (struct register_host_info *)
				fdisc->u.fxiocb.req_addr;
			phost_info = &preg_hsi->hsi;
			memset(preg_hsi, 0, sizeof(struct register_host_info));
			phost_info->os_type = OS_TYPE_LINUX;
			strncpy(phost_info->sysname,
			    p_sysid->sysname, SYSNAME_LENGTH);
			strncpy(phost_info->nodename,
			    p_sysid->nodename, NODENAME_LENGTH);
			strncpy(phost_info->release,
			    p_sysid->release, RELEASE_LENGTH);
			strncpy(phost_info->version,
			    p_sysid->version, VERSION_LENGTH);
			strncpy(phost_info->machine,
			    p_sysid->machine, MACHINE_LENGTH);
			strncpy(phost_info->domainname,
			    p_sysid->domainname, DOMNAME_LENGTH);
			strncpy(phost_info->hostdriver,
			    QLA2XXX_VERSION, VERSION_LENGTH);
			do_gettimeofday(&tv);
			preg_hsi->utc = (uint64_t)tv.tv_sec;
			ql_dbg(ql_dbg_init, vha, 0x0149,
			    "ISP%04X: Host registration with firmware\n",
			    ha->pdev->device);
			ql_dbg(ql_dbg_init, vha, 0x014a,
			    "os_type = '%d', sysname = '%s', nodname = '%s'\n",
			    phost_info->os_type,
			    phost_info->sysname,
			    phost_info->nodename);
			ql_dbg(ql_dbg_init, vha, 0x014b,
			    "release = '%s', version = '%s'\n",
			    phost_info->release,
			    phost_info->version);
			ql_dbg(ql_dbg_init, vha, 0x014c,
			    "machine = '%s' "
			    "domainname = '%s', hostdriver = '%s'\n",
			    phost_info->machine,
			    phost_info->domainname,
			    phost_info->hostdriver);
			ql_dump_buffer(ql_dbg_init + ql_dbg_disc, vha, 0x014d,
			    (uint8_t *)phost_info,
			    sizeof(struct host_system_info));
		}
	}

	if (fdisc->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
		fdisc->u.fxiocb.rsp_addr = dma_alloc_coherent(&ha->pdev->dev,
		    fdisc->u.fxiocb.rsp_len,
		    &fdisc->u.fxiocb.rsp_dma_handle, GFP_KERNEL);
		if (!fdisc->u.fxiocb.rsp_addr)
			goto done_unmap_req;
	}

	sp->type = SRB_FXIOCB_DCMD;
	sp->name = "fxdisc";
	qla2x00_init_timer(sp, FXDISC_TIMEOUT);
	fdisc->timeout = qla2x00_fxdisc_iocb_timeout;
1889
	fdisc->u.fxiocb.req_func_type = cpu_to_le16(fx_type);
1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941
	sp->done = qla2x00_fxdisc_sp_done;

	rval = qla2x00_start_sp(sp);
	if (rval != QLA_SUCCESS)
		goto done_unmap_dma;

	wait_for_completion(&fdisc->u.fxiocb.fxiocb_comp);

	if (fx_type == FXDISC_GET_CONFIG_INFO) {
		struct config_info_data *pinfo =
		    (struct config_info_data *) fdisc->u.fxiocb.rsp_addr;
		memcpy(&vha->hw->mr.product_name, pinfo->product_name,
		    sizeof(vha->hw->mr.product_name));
		memcpy(&vha->hw->mr.symbolic_name, pinfo->symbolic_name,
		    sizeof(vha->hw->mr.symbolic_name));
		memcpy(&vha->hw->mr.serial_num, pinfo->serial_num,
		    sizeof(vha->hw->mr.serial_num));
		memcpy(&vha->hw->mr.hw_version, pinfo->hw_version,
		    sizeof(vha->hw->mr.hw_version));
		memcpy(&vha->hw->mr.fw_version, pinfo->fw_version,
		    sizeof(vha->hw->mr.fw_version));
		strim(vha->hw->mr.fw_version);
		memcpy(&vha->hw->mr.uboot_version, pinfo->uboot_version,
		    sizeof(vha->hw->mr.uboot_version));
		memcpy(&vha->hw->mr.fru_serial_num, pinfo->fru_serial_num,
		    sizeof(vha->hw->mr.fru_serial_num));
	} else if (fx_type == FXDISC_GET_PORT_INFO) {
		struct port_info_data *pinfo =
		    (struct port_info_data *) fdisc->u.fxiocb.rsp_addr;
		memcpy(vha->node_name, pinfo->node_name, WWN_SIZE);
		memcpy(vha->port_name, pinfo->port_name, WWN_SIZE);
		vha->d_id.b.domain = pinfo->port_id[0];
		vha->d_id.b.area = pinfo->port_id[1];
		vha->d_id.b.al_pa = pinfo->port_id[2];
		qlafx00_update_host_attr(vha, pinfo);
		ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0141,
		    (uint8_t *)pinfo, 16);
	} else if (fx_type == FXDISC_GET_TGT_NODE_INFO) {
		struct qlafx00_tgt_node_info *pinfo =
		    (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
		memcpy(fcport->node_name, pinfo->tgt_node_wwnn, WWN_SIZE);
		memcpy(fcport->port_name, pinfo->tgt_node_wwpn, WWN_SIZE);
		fcport->port_type = FCT_TARGET;
		ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0144,
		    (uint8_t *)pinfo, 16);
	} else if (fx_type == FXDISC_GET_TGT_NODE_LIST) {
		struct qlafx00_tgt_node_info *pinfo =
		    (struct qlafx00_tgt_node_info *) fdisc->u.fxiocb.rsp_addr;
		ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0146,
		    (uint8_t *)pinfo, 16);
		memcpy(vha->hw->gid_list, pinfo, QLAFX00_TGT_NODE_LIST_SIZE);
	}
1942
	rval = le32_to_cpu(fdisc->u.fxiocb.result);
1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964

done_unmap_dma:
	if (fdisc->u.fxiocb.rsp_addr)
		dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.rsp_len,
		    fdisc->u.fxiocb.rsp_addr, fdisc->u.fxiocb.rsp_dma_handle);

done_unmap_req:
	if (fdisc->u.fxiocb.req_addr)
		dma_free_coherent(&ha->pdev->dev, fdisc->u.fxiocb.req_len,
		    fdisc->u.fxiocb.req_addr, fdisc->u.fxiocb.req_dma_handle);
done_free_sp:
	sp->free(vha, sp);
done:
	return rval;
}

static void
qlafx00_abort_iocb_timeout(void *data)
{
	srb_t *sp = (srb_t *)data;
	struct srb_iocb *abt = &sp->u.iocb_cmd;

1965
	abt->u.abt.comp_status = cpu_to_le16((uint16_t)CS_TIMEOUT);
1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205
	complete(&abt->u.abt.comp);
}

static void
qlafx00_abort_sp_done(void *data, void *ptr, int res)
{
	srb_t *sp = (srb_t *)ptr;
	struct srb_iocb *abt = &sp->u.iocb_cmd;

	complete(&abt->u.abt.comp);
}

static int
qlafx00_async_abt_cmd(srb_t *cmd_sp)
{
	scsi_qla_host_t *vha = cmd_sp->fcport->vha;
	fc_port_t *fcport = cmd_sp->fcport;
	struct srb_iocb *abt_iocb;
	srb_t *sp;
	int rval = QLA_FUNCTION_FAILED;

	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
	if (!sp)
		goto done;

	abt_iocb = &sp->u.iocb_cmd;
	sp->type = SRB_ABT_CMD;
	sp->name = "abort";
	qla2x00_init_timer(sp, FXDISC_TIMEOUT);
	abt_iocb->u.abt.cmd_hndl = cmd_sp->handle;
	sp->done = qlafx00_abort_sp_done;
	abt_iocb->timeout = qlafx00_abort_iocb_timeout;
	init_completion(&abt_iocb->u.abt.comp);

	rval = qla2x00_start_sp(sp);
	if (rval != QLA_SUCCESS)
		goto done_free_sp;

	ql_dbg(ql_dbg_async, vha, 0x507c,
	    "Abort command issued - hdl=%x, target_id=%x\n",
	    cmd_sp->handle, fcport->tgt_id);

	wait_for_completion(&abt_iocb->u.abt.comp);

	rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
	    QLA_SUCCESS : QLA_FUNCTION_FAILED;

done_free_sp:
	sp->free(vha, sp);
done:
	return rval;
}

int
qlafx00_abort_command(srb_t *sp)
{
	unsigned long   flags = 0;

	uint32_t	handle;
	fc_port_t	*fcport = sp->fcport;
	struct scsi_qla_host *vha = fcport->vha;
	struct qla_hw_data *ha = vha->hw;
	struct req_que *req = vha->req;

	spin_lock_irqsave(&ha->hardware_lock, flags);
	for (handle = 1; handle < DEFAULT_OUTSTANDING_COMMANDS; handle++) {
		if (req->outstanding_cmds[handle] == sp)
			break;
	}
	spin_unlock_irqrestore(&ha->hardware_lock, flags);
	if (handle == DEFAULT_OUTSTANDING_COMMANDS) {
		/* Command not found. */
		return QLA_FUNCTION_FAILED;
	}
	return qlafx00_async_abt_cmd(sp);
}

/*
 * qlafx00_initialize_adapter
 *      Initialize board.
 *
 * Input:
 *      ha = adapter block pointer.
 *
 * Returns:
 *      0 = success
 */
int
qlafx00_initialize_adapter(scsi_qla_host_t *vha)
{
	int	rval;
	struct qla_hw_data *ha = vha->hw;

	/* Clear adapter flags. */
	vha->flags.online = 0;
	ha->flags.chip_reset_done = 0;
	vha->flags.reset_active = 0;
	ha->flags.pci_channel_io_perm_failure = 0;
	ha->flags.eeh_busy = 0;
	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
	atomic_set(&vha->loop_state, LOOP_DOWN);
	vha->device_flags = DFLG_NO_CABLE;
	vha->dpc_flags = 0;
	vha->flags.management_server_logged_in = 0;
	vha->marker_needed = 0;
	ha->isp_abort_cnt = 0;
	ha->beacon_blink_led = 0;

	set_bit(0, ha->req_qid_map);
	set_bit(0, ha->rsp_qid_map);

	ql_dbg(ql_dbg_init, vha, 0x0147,
	    "Configuring PCI space...\n");

	rval = ha->isp_ops->pci_config(vha);
	if (rval) {
		ql_log(ql_log_warn, vha, 0x0148,
		    "Unable to configure PCI space.\n");
		return rval;
	}

	rval = qlafx00_init_fw_ready(vha);
	if (rval != QLA_SUCCESS)
		return rval;

	qlafx00_save_queue_ptrs(vha);

	rval = qlafx00_config_queues(vha);
	if (rval != QLA_SUCCESS)
		return rval;

	/*
	 * Allocate the array of outstanding commands
	 * now that we know the firmware resources.
	 */
	rval = qla2x00_alloc_outstanding_cmds(ha, vha->req);
	if (rval != QLA_SUCCESS)
		return rval;

	rval = qla2x00_init_rings(vha);
	ha->flags.chip_reset_done = 1;

	return rval;
}

uint32_t
qlafx00_fw_state_show(struct device *dev, struct device_attribute *attr,
		      char *buf)
{
	scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
	int rval = QLA_FUNCTION_FAILED;
	uint32_t state[1];

	if (qla2x00_reset_active(vha))
		ql_log(ql_log_warn, vha, 0x70ce,
		    "ISP reset active.\n");
	else if (!vha->hw->flags.eeh_busy) {
		rval = qlafx00_get_firmware_state(vha, state);
	}
	if (rval != QLA_SUCCESS)
		memset(state, -1, sizeof(state));

	return state[0];
}

void
qlafx00_get_host_speed(struct Scsi_Host *shost)
{
	struct qla_hw_data *ha = ((struct scsi_qla_host *)
					(shost_priv(shost)))->hw;
	u32 speed = FC_PORTSPEED_UNKNOWN;

	switch (ha->link_data_rate) {
	case QLAFX00_PORT_SPEED_2G:
		speed = FC_PORTSPEED_2GBIT;
		break;
	case QLAFX00_PORT_SPEED_4G:
		speed = FC_PORTSPEED_4GBIT;
		break;
	case QLAFX00_PORT_SPEED_8G:
		speed = FC_PORTSPEED_8GBIT;
		break;
	case QLAFX00_PORT_SPEED_10G:
		speed = FC_PORTSPEED_10GBIT;
		break;
	}
	fc_host_speed(shost) = speed;
}

/** QLAFX00 specific ISR implementation functions */

static inline void
qlafx00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
		     uint32_t sense_len, struct rsp_que *rsp, int res)
{
	struct scsi_qla_host *vha = sp->fcport->vha;
	struct scsi_cmnd *cp = GET_CMD_SP(sp);
	uint32_t track_sense_len;

	SET_FW_SENSE_LEN(sp, sense_len);

	if (sense_len >= SCSI_SENSE_BUFFERSIZE)
		sense_len = SCSI_SENSE_BUFFERSIZE;

	SET_CMD_SENSE_LEN(sp, sense_len);
	SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
	track_sense_len = sense_len;

	if (sense_len > par_sense_len)
		sense_len = par_sense_len;

	memcpy(cp->sense_buffer, sense_data, sense_len);

	SET_FW_SENSE_LEN(sp, GET_FW_SENSE_LEN(sp) - sense_len);

	SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
	track_sense_len -= sense_len;
	SET_CMD_SENSE_LEN(sp, track_sense_len);

	ql_dbg(ql_dbg_io, vha, 0x304d,
	    "sense_len=0x%x par_sense_len=0x%x track_sense_len=0x%x.\n",
	    sense_len, par_sense_len, track_sense_len);
	if (GET_FW_SENSE_LEN(sp) > 0) {
		rsp->status_srb = sp;
		cp->result = res;
	}

	if (sense_len) {
		ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3039,
		    "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
		    sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
		    cp);
		ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3049,
		    cp->sense_buffer, sense_len);
	}
}

static void
qlafx00_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
		      struct tsk_mgmt_entry_fx00 *pkt, srb_t *sp,
2206
		      __le16 sstatus, __le16 cpstatus)
2207 2208 2209 2210
{
	struct srb_iocb *tmf;

	tmf = &sp->u.iocb_cmd;
2211 2212 2213
	if (cpstatus != cpu_to_le16((uint16_t)CS_COMPLETE) ||
	    (sstatus & cpu_to_le16((uint16_t)SS_RESPONSE_INFO_LEN_VALID)))
		cpstatus = cpu_to_le16((uint16_t)CS_INCOMPLETE);
2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230
	tmf->u.tmf.comp_status = cpstatus;
	sp->done(vha, sp, 0);
}

static void
qlafx00_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
			 struct abort_iocb_entry_fx00 *pkt)
{
	const char func[] = "ABT_IOCB";
	srb_t *sp;
	struct srb_iocb *abt;

	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
	if (!sp)
		return;

	abt = &sp->u.iocb_cmd;
2231
	abt->u.abt.comp_status = pkt->tgt_id_sts;
2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252
	sp->done(vha, sp, 0);
}

static void
qlafx00_ioctl_iosb_entry(scsi_qla_host_t *vha, struct req_que *req,
			 struct ioctl_iocb_entry_fx00 *pkt)
{
	const char func[] = "IOSB_IOCB";
	srb_t *sp;
	struct fc_bsg_job *bsg_job;
	struct srb_iocb *iocb_job;
	int res;
	struct qla_mt_iocb_rsp_fx00 fstatus;
	uint8_t	*fw_sts_ptr;

	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
	if (!sp)
		return;

	if (sp->type == SRB_FXIOCB_DCMD) {
		iocb_job = &sp->u.iocb_cmd;
2253 2254 2255
		iocb_job->u.fxiocb.seq_number = pkt->seq_no;
		iocb_job->u.fxiocb.fw_flags = pkt->fw_iotcl_flags;
		iocb_job->u.fxiocb.result = pkt->status;
2256 2257
		if (iocb_job->u.fxiocb.flags & SRB_FXDISC_RSP_DWRD_VALID)
			iocb_job->u.fxiocb.req_data =
2258
			    pkt->dataword_r;
2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311
	} else {
		bsg_job = sp->u.bsg_job;

		memset(&fstatus, 0, sizeof(struct qla_mt_iocb_rsp_fx00));

		fstatus.reserved_1 = pkt->reserved_0;
		fstatus.func_type = pkt->comp_func_num;
		fstatus.ioctl_flags = pkt->fw_iotcl_flags;
		fstatus.ioctl_data = pkt->dataword_r;
		fstatus.adapid = pkt->adapid;
		fstatus.adapid_hi = pkt->adapid_hi;
		fstatus.reserved_2 = pkt->reserved_1;
		fstatus.res_count = pkt->residuallen;
		fstatus.status = pkt->status;
		fstatus.seq_number = pkt->seq_no;
		memcpy(fstatus.reserved_3,
		    pkt->reserved_2, 20 * sizeof(uint8_t));

		fw_sts_ptr = ((uint8_t *)bsg_job->req->sense) +
		    sizeof(struct fc_bsg_reply);

		memcpy(fw_sts_ptr, (uint8_t *)&fstatus,
		    sizeof(struct qla_mt_iocb_rsp_fx00));
		bsg_job->reply_len = sizeof(struct fc_bsg_reply) +
			sizeof(struct qla_mt_iocb_rsp_fx00) + sizeof(uint8_t);

		ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
		    sp->fcport->vha, 0x5080,
		    (uint8_t *)pkt, sizeof(struct ioctl_iocb_entry_fx00));

		ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
		    sp->fcport->vha, 0x5074,
		    (uint8_t *)fw_sts_ptr, sizeof(struct qla_mt_iocb_rsp_fx00));

		res = bsg_job->reply->result = DID_OK << 16;
		bsg_job->reply->reply_payload_rcv_len =
		    bsg_job->reply_payload.payload_len;
	}
	sp->done(vha, sp, res);
}

/**
 * qlafx00_status_entry() - Process a Status IOCB entry.
 * @ha: SCSI driver HA context
 * @pkt: Entry pointer
 */
static void
qlafx00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
{
	srb_t		*sp;
	fc_port_t	*fcport;
	struct scsi_cmnd *cp;
	struct sts_entry_fx00 *sts;
2312 2313
	__le16		comp_status;
	__le16		scsi_status;
2314
	uint16_t	ox_id;
2315
	__le16		lscsi_status;
2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328
	int32_t		resid;
	uint32_t	sense_len, par_sense_len, rsp_info_len, resid_len,
	    fw_resid_len;
	uint8_t		*rsp_info = NULL, *sense_data = NULL;
	struct qla_hw_data *ha = vha->hw;
	uint32_t hindex, handle;
	uint16_t que;
	struct req_que *req;
	int logit = 1;
	int res = 0;

	sts = (struct sts_entry_fx00 *) pkt;

2329 2330
	comp_status = sts->comp_status;
	scsi_status = sts->scsi_status & cpu_to_le16((uint16_t)SS_MASK);
2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375
	hindex = sts->handle;
	handle = LSW(hindex);

	que = MSW(hindex);
	req = ha->req_q_map[que];

	/* Validate handle. */
	if (handle < req->num_outstanding_cmds)
		sp = req->outstanding_cmds[handle];
	else
		sp = NULL;

	if (sp == NULL) {
		ql_dbg(ql_dbg_io, vha, 0x3034,
		    "Invalid status handle (0x%x).\n", handle);

		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
		qla2xxx_wake_dpc(vha);
		return;
	}

	if (sp->type == SRB_TM_CMD) {
		req->outstanding_cmds[handle] = NULL;
		qlafx00_tm_iocb_entry(vha, req, pkt, sp,
		    scsi_status, comp_status);
		return;
	}

	/* Fast path completion. */
	if (comp_status == CS_COMPLETE && scsi_status == 0) {
		qla2x00_do_host_ramp_up(vha);
		qla2x00_process_completed_request(vha, req, handle);
		return;
	}

	req->outstanding_cmds[handle] = NULL;
	cp = GET_CMD_SP(sp);
	if (cp == NULL) {
		ql_dbg(ql_dbg_io, vha, 0x3048,
		    "Command already returned (0x%x/%p).\n",
		    handle, sp);

		return;
	}

2376
	lscsi_status = scsi_status & cpu_to_le16((uint16_t)STATUS_MASK);
2377 2378 2379 2380 2381 2382

	fcport = sp->fcport;

	ox_id = 0;
	sense_len = par_sense_len = rsp_info_len = resid_len =
		fw_resid_len = 0;
2383 2384 2385 2386
	if (scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID))
		sense_len = sts->sense_len;
	if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
	    | (uint16_t)SS_RESIDUAL_OVER)))
2387
		resid_len = le32_to_cpu(sts->residual_len);
2388
	if (comp_status == cpu_to_le16((uint16_t)CS_DATA_UNDERRUN))
2389 2390 2391 2392 2393 2394
		fw_resid_len = le32_to_cpu(sts->residual_len);
	rsp_info = sense_data = sts->data;
	par_sense_len = sizeof(sts->data);

	/* Check for overrun. */
	if (comp_status == CS_COMPLETE &&
2395 2396
	    scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_OVER))
		comp_status = cpu_to_le16((uint16_t)CS_DATA_OVERRUN);
2397 2398 2399 2400

	/*
	 * Based on Host and scsi status generate status code for Linux
	 */
2401
	switch (le16_to_cpu(comp_status)) {
2402 2403 2404 2405 2406 2407
	case CS_COMPLETE:
	case CS_QUEUE_FULL:
		if (scsi_status == 0) {
			res = DID_OK << 16;
			break;
		}
2408 2409
		if (scsi_status & cpu_to_le16(((uint16_t)SS_RESIDUAL_UNDER
		    | (uint16_t)SS_RESIDUAL_OVER))) {
2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424
			resid = resid_len;
			scsi_set_resid(cp, resid);

			if (!lscsi_status &&
			    ((unsigned)(scsi_bufflen(cp) - resid) <
			     cp->underflow)) {
				ql_dbg(ql_dbg_io, fcport->vha, 0x3050,
				    "Mid-layer underflow "
				    "detected (0x%x of 0x%x bytes).\n",
				    resid, scsi_bufflen(cp));

				res = DID_ERROR << 16;
				break;
			}
		}
2425
		res = DID_OK << 16 | le16_to_cpu(lscsi_status);
2426

2427 2428
		if (lscsi_status ==
		    cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
2429 2430 2431 2432 2433
			ql_dbg(ql_dbg_io, fcport->vha, 0x3051,
			    "QUEUE FULL detected.\n");
			break;
		}
		logit = 0;
2434
		if (lscsi_status != cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
2435 2436 2437
			break;

		memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2438
		if (!(scsi_status & cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451
			break;

		qlafx00_handle_sense(sp, sense_data, par_sense_len, sense_len,
		    rsp, res);
		break;

	case CS_DATA_UNDERRUN:
		/* Use F/W calculated residual length. */
		if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
			resid = fw_resid_len;
		else
			resid = resid_len;
		scsi_set_resid(cp, resid);
2452
		if (scsi_status & cpu_to_le16((uint16_t)SS_RESIDUAL_UNDER)) {
2453 2454 2455 2456 2457 2458 2459
			if ((IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
			    && fw_resid_len != resid_len) {
				ql_dbg(ql_dbg_io, fcport->vha, 0x3052,
				    "Dropped frame(s) detected "
				    "(0x%x of 0x%x bytes).\n",
				    resid, scsi_bufflen(cp));

2460 2461
				res = DID_ERROR << 16 |
				    le16_to_cpu(lscsi_status);
2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476
				goto check_scsi_status;
			}

			if (!lscsi_status &&
			    ((unsigned)(scsi_bufflen(cp) - resid) <
			    cp->underflow)) {
				ql_dbg(ql_dbg_io, fcport->vha, 0x3053,
				    "Mid-layer underflow "
				    "detected (0x%x of 0x%x bytes, "
				    "cp->underflow: 0x%x).\n",
				    resid, scsi_bufflen(cp), cp->underflow);

				res = DID_ERROR << 16;
				break;
			}
2477 2478 2479
		} else if (lscsi_status !=
		    cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL) &&
		    lscsi_status != cpu_to_le16((uint16_t)SAM_STAT_BUSY)) {
2480 2481 2482 2483 2484 2485 2486 2487 2488 2489
			/*
			 * scsi status of task set and busy are considered
			 * to be task not completed.
			 */

			ql_dbg(ql_dbg_io, fcport->vha, 0x3054,
			    "Dropped frame(s) detected (0x%x "
			    "of 0x%x bytes).\n", resid,
			    scsi_bufflen(cp));

2490
			res = DID_ERROR << 16 | le16_to_cpu(lscsi_status);
2491 2492 2493 2494 2495 2496 2497
			goto check_scsi_status;
		} else {
			ql_dbg(ql_dbg_io, fcport->vha, 0x3055,
			    "scsi_status: 0x%x, lscsi_status: 0x%x\n",
			    scsi_status, lscsi_status);
		}

2498
		res = DID_OK << 16 | le16_to_cpu(lscsi_status);
2499 2500 2501 2502 2503 2504 2505 2506
		logit = 0;

check_scsi_status:
		/*
		 * Check to see if SCSI Status is non zero. If so report SCSI
		 * Status.
		 */
		if (lscsi_status != 0) {
2507 2508
			if (lscsi_status ==
			    cpu_to_le16((uint16_t)SAM_STAT_TASK_SET_FULL)) {
2509 2510 2511 2512 2513
				ql_dbg(ql_dbg_io, fcport->vha, 0x3056,
				    "QUEUE FULL detected.\n");
				logit = 1;
				break;
			}
2514 2515
			if (lscsi_status !=
			    cpu_to_le16((uint16_t)SS_CHECK_CONDITION))
2516 2517 2518
				break;

			memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2519 2520
			if (!(scsi_status &
			    cpu_to_le16((uint16_t)SS_SENSE_LEN_VALID)))
2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561
				break;

			qlafx00_handle_sense(sp, sense_data, par_sense_len,
			    sense_len, rsp, res);
		}
		break;

	case CS_PORT_LOGGED_OUT:
	case CS_PORT_CONFIG_CHG:
	case CS_PORT_BUSY:
	case CS_INCOMPLETE:
	case CS_PORT_UNAVAILABLE:
	case CS_TIMEOUT:
	case CS_RESET:

		/*
		 * We are going to have the fc class block the rport
		 * while we try to recover so instruct the mid layer
		 * to requeue until the class decides how to handle this.
		 */
		res = DID_TRANSPORT_DISRUPTED << 16;

		ql_dbg(ql_dbg_io, fcport->vha, 0x3057,
		    "Port down status: port-state=0x%x.\n",
		    atomic_read(&fcport->state));

		if (atomic_read(&fcport->state) == FCS_ONLINE)
			qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
		break;

	case CS_ABORTED:
		res = DID_RESET << 16;
		break;

	default:
		res = DID_ERROR << 16;
		break;
	}

	if (logit)
		ql_dbg(ql_dbg_io, fcport->vha, 0x3058,
2562 2563 2564 2565
		    "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%d "
		    "tgt_id: 0x%x lscsi_status: 0x%x cdb=%10phN len=0x%x "
		    "rsp_info=0x%x resid=0x%x fw_resid=0x%x sense_len=0x%x, "
		    "par_sense_len=0x%x, rsp_info_len=0x%x\n",
2566 2567
		    comp_status, scsi_status, res, vha->host_no,
		    cp->device->id, cp->device->lun, fcport->tgt_id,
2568
		    lscsi_status, cp->cmnd, scsi_bufflen(cp),
2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670
		    rsp_info_len, resid_len, fw_resid_len, sense_len,
		    par_sense_len, rsp_info_len);

	if (!res)
		qla2x00_do_host_ramp_up(vha);

	if (rsp->status_srb == NULL)
		sp->done(ha, sp, res);
}

/**
 * qlafx00_status_cont_entry() - Process a Status Continuations entry.
 * @ha: SCSI driver HA context
 * @pkt: Entry pointer
 *
 * Extended sense data.
 */
static void
qlafx00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
{
	uint8_t	sense_sz = 0;
	struct qla_hw_data *ha = rsp->hw;
	struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
	srb_t *sp = rsp->status_srb;
	struct scsi_cmnd *cp;
	uint32_t sense_len;
	uint8_t *sense_ptr;

	if (!sp) {
		ql_dbg(ql_dbg_io, vha, 0x3037,
		    "no SP, sp = %p\n", sp);
		return;
	}

	if (!GET_FW_SENSE_LEN(sp)) {
		ql_dbg(ql_dbg_io, vha, 0x304b,
		    "no fw sense data, sp = %p\n", sp);
		return;
	}
	cp = GET_CMD_SP(sp);
	if (cp == NULL) {
		ql_log(ql_log_warn, vha, 0x303b,
		    "cmd is NULL: already returned to OS (sp=%p).\n", sp);

		rsp->status_srb = NULL;
		return;
	}

	if (!GET_CMD_SENSE_LEN(sp)) {
		ql_dbg(ql_dbg_io, vha, 0x304c,
		    "no sense data, sp = %p\n", sp);
	} else {
		sense_len = GET_CMD_SENSE_LEN(sp);
		sense_ptr = GET_CMD_SENSE_PTR(sp);
		ql_dbg(ql_dbg_io, vha, 0x304f,
		    "sp=%p sense_len=0x%x sense_ptr=%p.\n",
		    sp, sense_len, sense_ptr);

		if (sense_len > sizeof(pkt->data))
			sense_sz = sizeof(pkt->data);
		else
			sense_sz = sense_len;

		/* Move sense data. */
		ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304e,
		    (uint8_t *)pkt, sizeof(sts_cont_entry_t));
		memcpy(sense_ptr, pkt->data, sense_sz);
		ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x304a,
		    sense_ptr, sense_sz);

		sense_len -= sense_sz;
		sense_ptr += sense_sz;

		SET_CMD_SENSE_PTR(sp, sense_ptr);
		SET_CMD_SENSE_LEN(sp, sense_len);
	}
	sense_len = GET_FW_SENSE_LEN(sp);
	sense_len = (sense_len > sizeof(pkt->data)) ?
	    (sense_len - sizeof(pkt->data)) : 0;
	SET_FW_SENSE_LEN(sp, sense_len);

	/* Place command on done queue. */
	if (sense_len == 0) {
		rsp->status_srb = NULL;
		sp->done(ha, sp, cp->result);
	}
}

/**
 * qlafx00_multistatus_entry() - Process Multi response queue entries.
 * @ha: SCSI driver HA context
 */
static void
qlafx00_multistatus_entry(struct scsi_qla_host *vha,
	struct rsp_que *rsp, void *pkt)
{
	srb_t		*sp;
	struct multi_sts_entry_fx00 *stsmfx;
	struct qla_hw_data *ha = vha->hw;
	uint32_t handle, hindex, handle_count, i;
	uint16_t que;
	struct req_que *req;
2671
	__le32 *handle_ptr;
2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684

	stsmfx = (struct multi_sts_entry_fx00 *) pkt;

	handle_count = stsmfx->handle_count;

	if (handle_count > MAX_HANDLE_COUNT) {
		ql_dbg(ql_dbg_io, vha, 0x3035,
		    "Invalid handle count (0x%x).\n", handle_count);
		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
		qla2xxx_wake_dpc(vha);
		return;
	}

2685
	handle_ptr =  &stsmfx->handles[0];
2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755

	for (i = 0; i < handle_count; i++) {
		hindex = le32_to_cpu(*handle_ptr);
		handle = LSW(hindex);
		que = MSW(hindex);
		req = ha->req_q_map[que];

		/* Validate handle. */
		if (handle < req->num_outstanding_cmds)
			sp = req->outstanding_cmds[handle];
		else
			sp = NULL;

		if (sp == NULL) {
			ql_dbg(ql_dbg_io, vha, 0x3044,
			    "Invalid status handle (0x%x).\n", handle);
			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
			qla2xxx_wake_dpc(vha);
			return;
		}
		qla2x00_process_completed_request(vha, req, handle);
		handle_ptr++;
	}
}

/**
 * qlafx00_error_entry() - Process an error entry.
 * @ha: SCSI driver HA context
 * @pkt: Entry pointer
 */
static void
qlafx00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp,
		    struct sts_entry_fx00 *pkt, uint8_t estatus, uint8_t etype)
{
	srb_t *sp;
	struct qla_hw_data *ha = vha->hw;
	const char func[] = "ERROR-IOCB";
	uint16_t que = MSW(pkt->handle);
	struct req_que *req = NULL;
	int res = DID_ERROR << 16;

	ql_dbg(ql_dbg_async, vha, 0x507f,
	    "type of error status in response: 0x%x\n", estatus);

	req = ha->req_q_map[que];

	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
	if (sp) {
		sp->done(ha, sp, res);
		return;
	}

	set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
	qla2xxx_wake_dpc(vha);
}

/**
 * qlafx00_process_response_queue() - Process response queue entries.
 * @ha: SCSI driver HA context
 */
static void
qlafx00_process_response_queue(struct scsi_qla_host *vha,
	struct rsp_que *rsp)
{
	struct sts_entry_fx00 *pkt;
	response_t *lptr;

	if (!vha->flags.online)
		return;

2756
	while (RD_REG_DWORD((void __iomem *)&(rsp->ring_ptr->signature)) !=
2757 2758
	    RESPONSE_PROCESSED) {
		lptr = rsp->ring_ptr;
2759 2760
		memcpy_fromio(rsp->rsp_pkt, (void __iomem *)lptr,
		    sizeof(rsp->rsp_pkt));
2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810
		pkt = (struct sts_entry_fx00 *)rsp->rsp_pkt;

		rsp->ring_index++;
		if (rsp->ring_index == rsp->length) {
			rsp->ring_index = 0;
			rsp->ring_ptr = rsp->ring;
		} else {
			rsp->ring_ptr++;
		}

		if (pkt->entry_status != 0 &&
		    pkt->entry_type != IOCTL_IOSB_TYPE_FX00) {
			qlafx00_error_entry(vha, rsp,
			    (struct sts_entry_fx00 *)pkt, pkt->entry_status,
			    pkt->entry_type);
			goto next_iter;
			continue;
		}

		switch (pkt->entry_type) {
		case STATUS_TYPE_FX00:
			qlafx00_status_entry(vha, rsp, pkt);
			break;

		case STATUS_CONT_TYPE_FX00:
			qlafx00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
			break;

		case MULTI_STATUS_TYPE_FX00:
			qlafx00_multistatus_entry(vha, rsp, pkt);
			break;

		case ABORT_IOCB_TYPE_FX00:
			qlafx00_abort_iocb_entry(vha, rsp->req,
			   (struct abort_iocb_entry_fx00 *)pkt);
			break;

		case IOCTL_IOSB_TYPE_FX00:
			qlafx00_ioctl_iosb_entry(vha, rsp->req,
			    (struct ioctl_iocb_entry_fx00 *)pkt);
			break;
		default:
			/* Type Not Supported. */
			ql_dbg(ql_dbg_async, vha, 0x5081,
			    "Received unknown response pkt type %x "
			    "entry status=%x.\n",
			    pkt->entry_type, pkt->entry_status);
			break;
		}
next_iter:
2811 2812
		WRT_REG_DWORD((void __iomem *)&lptr->signature,
		    RESPONSE_PROCESSED);
2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974
		wmb();
	}

	/* Adjust ring index */
	WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
}

/**
 * qlafx00_async_event() - Process aynchronous events.
 * @ha: SCSI driver HA context
 */
static void
qlafx00_async_event(scsi_qla_host_t *vha)
{
	struct qla_hw_data *ha = vha->hw;
	struct device_reg_fx00 __iomem *reg;
	int data_size = 1;

	reg = &ha->iobase->ispfx00;
	/* Setup to process RIO completion. */
	switch (ha->aenmb[0]) {
	case QLAFX00_MBA_SYSTEM_ERR:		/* System Error */
		ql_log(ql_log_warn, vha, 0x5079,
		    "ISP System Error - mbx1=%x\n", ha->aenmb[0]);
		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
		break;

	case QLAFX00_MBA_SHUTDOWN_RQSTD:	/* Shutdown requested */
		ql_dbg(ql_dbg_async, vha, 0x5076,
		    "Asynchronous FW shutdown requested.\n");
		set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
		qla2xxx_wake_dpc(vha);
		break;

	case QLAFX00_MBA_PORT_UPDATE:		/* Port database update */
		ha->aenmb[1] = RD_REG_WORD(&reg->aenmailbox1);
		ha->aenmb[2] = RD_REG_WORD(&reg->aenmailbox2);
		ha->aenmb[3] = RD_REG_WORD(&reg->aenmailbox3);
		ql_dbg(ql_dbg_async, vha, 0x5077,
		    "Asynchronous port Update received "
		    "aenmb[0]: %x, aenmb[1]: %x, aenmb[2]: %x, aenmb[3]: %x\n",
		    ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3]);
		data_size = 4;
		break;
	default:
		ha->aenmb[1] = RD_REG_WORD(&reg->aenmailbox1);
		ha->aenmb[2] = RD_REG_WORD(&reg->aenmailbox2);
		ha->aenmb[3] = RD_REG_WORD(&reg->aenmailbox3);
		ha->aenmb[4] = RD_REG_WORD(&reg->aenmailbox4);
		ha->aenmb[5] = RD_REG_WORD(&reg->aenmailbox5);
		ha->aenmb[6] = RD_REG_WORD(&reg->aenmailbox6);
		ha->aenmb[7] = RD_REG_WORD(&reg->aenmailbox7);
		ql_dbg(ql_dbg_async, vha, 0x5078,
		    "AEN:%04x %04x %04x %04x :%04x %04x %04x %04x\n",
		    ha->aenmb[0], ha->aenmb[1], ha->aenmb[2], ha->aenmb[3],
		    ha->aenmb[4], ha->aenmb[5], ha->aenmb[6], ha->aenmb[7]);
		break;
	}
	qlafx00_post_aenfx_work(vha, ha->aenmb[0],
	    (uint32_t *)ha->aenmb, data_size);
}

/**
 *
 * qlafx00x_mbx_completion() - Process mailbox command completions.
 * @ha: SCSI driver HA context
 * @mb16: Mailbox16 register
 */
static void
qlafx00_mbx_completion(scsi_qla_host_t *vha, uint32_t mb0)
{
	uint16_t	cnt;
	uint16_t __iomem *wptr;
	struct qla_hw_data *ha = vha->hw;
	struct device_reg_fx00 __iomem *reg = &ha->iobase->ispfx00;

	if (!ha->mcp32)
		ql_dbg(ql_dbg_async, vha, 0x507e, "MBX pointer ERROR.\n");

	/* Load return mailbox registers. */
	ha->flags.mbox_int = 1;
	ha->mailbox_out32[0] = mb0;
	wptr = (uint16_t __iomem *)&reg->mailbox17;

	for (cnt = 1; cnt < ha->mbx_count; cnt++) {
		ha->mailbox_out32[cnt] = RD_REG_WORD(wptr);
		wptr++;
	}
}

/**
 * qlafx00_intr_handler() - Process interrupts for the ISPFX00.
 * @irq:
 * @dev_id: SCSI driver HA context
 *
 * Called by system whenever the host adapter generates an interrupt.
 *
 * Returns handled flag.
 */
irqreturn_t
qlafx00_intr_handler(int irq, void *dev_id)
{
	scsi_qla_host_t	*vha;
	struct qla_hw_data *ha;
	struct device_reg_fx00 __iomem *reg;
	int		status;
	unsigned long	iter;
	uint32_t	stat;
	uint32_t	mb[8];
	struct rsp_que *rsp;
	unsigned long	flags;
	uint32_t clr_intr = 0;

	rsp = (struct rsp_que *) dev_id;
	if (!rsp) {
		ql_log(ql_log_info, NULL, 0x507d,
		    "%s: NULL response queue pointer.\n", __func__);
		return IRQ_NONE;
	}

	ha = rsp->hw;
	reg = &ha->iobase->ispfx00;
	status = 0;

	if (unlikely(pci_channel_offline(ha->pdev)))
		return IRQ_HANDLED;

	spin_lock_irqsave(&ha->hardware_lock, flags);
	vha = pci_get_drvdata(ha->pdev);
	for (iter = 50; iter--; clr_intr = 0) {
		stat = QLAFX00_RD_INTR_REG(ha);
		if ((stat & QLAFX00_HST_INT_STS_BITS) == 0)
			break;

		switch (stat & QLAFX00_HST_INT_STS_BITS) {
		case QLAFX00_INTR_MB_CMPLT:
		case QLAFX00_INTR_MB_RSP_CMPLT:
		case QLAFX00_INTR_MB_ASYNC_CMPLT:
		case QLAFX00_INTR_ALL_CMPLT:
			mb[0] = RD_REG_WORD(&reg->mailbox16);
			qlafx00_mbx_completion(vha, mb[0]);
			status |= MBX_INTERRUPT;
			clr_intr |= QLAFX00_INTR_MB_CMPLT;
			break;
		case QLAFX00_INTR_ASYNC_CMPLT:
		case QLAFX00_INTR_RSP_ASYNC_CMPLT:
			ha->aenmb[0] = RD_REG_WORD(&reg->aenmailbox0);
			qlafx00_async_event(vha);
			clr_intr |= QLAFX00_INTR_ASYNC_CMPLT;
			break;
		case QLAFX00_INTR_RSP_CMPLT:
			qlafx00_process_response_queue(vha, rsp);
			clr_intr |= QLAFX00_INTR_RSP_CMPLT;
			break;
		default:
			ql_dbg(ql_dbg_async, vha, 0x507a,
			    "Unrecognized interrupt type (%d).\n", stat);
			break;
		}
		QLAFX00_CLR_INTR_REG(ha, clr_intr);
		QLAFX00_RD_INTR_REG(ha);
	}
2975 2976

	qla2x00_handle_mbx_completion(ha, status);
2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001
	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	return IRQ_HANDLED;
}

/** QLAFX00 specific IOCB implementation functions */

static inline cont_a64_entry_t *
qlafx00_prep_cont_type1_iocb(struct req_que *req,
			     cont_a64_entry_t *lcont_pkt)
{
	cont_a64_entry_t *cont_pkt;

	/* Adjust ring index. */
	req->ring_index++;
	if (req->ring_index == req->length) {
		req->ring_index = 0;
		req->ring_ptr = req->ring;
	} else {
		req->ring_ptr++;
	}

	cont_pkt = (cont_a64_entry_t *)req->ring_ptr;

	/* Load packet defaults. */
3002
	lcont_pkt->entry_type = CONTINUE_A64_TYPE_FX00;
3003 3004 3005 3006 3007 3008 3009 3010 3011

	return cont_pkt;
}

static inline void
qlafx00_build_scsi_iocbs(srb_t *sp, struct cmd_type_7_fx00 *cmd_pkt,
			 uint16_t tot_dsds, struct cmd_type_7_fx00 *lcmd_pkt)
{
	uint16_t	avail_dsds;
3012
	__le32 *cur_dsd;
3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028
	scsi_qla_host_t	*vha;
	struct scsi_cmnd *cmd;
	struct scatterlist *sg;
	int i, cont;
	struct req_que *req;
	cont_a64_entry_t lcont_pkt;
	cont_a64_entry_t *cont_pkt;

	vha = sp->fcport->vha;
	req = vha->req;

	cmd = GET_CMD_SP(sp);
	cont = 0;
	cont_pkt = NULL;

	/* Update entry type to indicate Command Type 3 IOCB */
3029
	lcmd_pkt->entry_type = FX00_COMMAND_TYPE_7;
3030 3031 3032 3033 3034 3035 3036 3037 3038

	/* No data transfer */
	if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
		lcmd_pkt->byte_count = __constant_cpu_to_le32(0);
		return;
	}

	/* Set transfer direction */
	if (cmd->sc_data_direction == DMA_TO_DEVICE) {
3039
		lcmd_pkt->cntrl_flags = TMF_WRITE_DATA;
3040 3041
		vha->qla_stats.output_bytes += scsi_bufflen(cmd);
	} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
3042
		lcmd_pkt->cntrl_flags = TMF_READ_DATA;
3043 3044 3045 3046 3047
		vha->qla_stats.input_bytes += scsi_bufflen(cmd);
	}

	/* One DSD is available in the Command Type 3 IOCB */
	avail_dsds = 1;
3048
	cur_dsd = (__le32 *)&lcmd_pkt->dseg_0_address;
3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062

	/* Load data segments */
	scsi_for_each_sg(cmd, sg, tot_dsds, i) {
		dma_addr_t	sle_dma;

		/* Allocate additional continuation packets? */
		if (avail_dsds == 0) {
			/*
			 * Five DSDs are available in the Continuation
			 * Type 1 IOCB.
			 */
			memset(&lcont_pkt, 0, REQUEST_ENTRY_SIZE);
			cont_pkt =
			    qlafx00_prep_cont_type1_iocb(req, &lcont_pkt);
3063
			cur_dsd = (__le32 *)lcont_pkt.dseg_0_address;
3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265
			avail_dsds = 5;
			cont = 1;
		}

		sle_dma = sg_dma_address(sg);
		*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
		*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
		*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
		avail_dsds--;
		if (avail_dsds == 0 && cont == 1) {
			cont = 0;
			memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
			    REQUEST_ENTRY_SIZE);
		}

	}
	if (avail_dsds != 0 && cont == 1) {
		memcpy_toio((void __iomem *)cont_pkt, &lcont_pkt,
		    REQUEST_ENTRY_SIZE);
	}
}

/**
 * qlafx00_start_scsi() - Send a SCSI command to the ISP
 * @sp: command to send to the ISP
 *
 * Returns non-zero if a failure occurred, else zero.
 */
int
qlafx00_start_scsi(srb_t *sp)
{
	int		ret, nseg;
	unsigned long   flags;
	uint32_t        index;
	uint32_t	handle;
	uint16_t	cnt;
	uint16_t	req_cnt;
	uint16_t	tot_dsds;
	struct req_que *req = NULL;
	struct rsp_que *rsp = NULL;
	struct scsi_cmnd *cmd = GET_CMD_SP(sp);
	struct scsi_qla_host *vha = sp->fcport->vha;
	struct qla_hw_data *ha = vha->hw;
	struct cmd_type_7_fx00 *cmd_pkt;
	struct cmd_type_7_fx00 lcmd_pkt;
	struct scsi_lun llun;
	char		tag[2];

	/* Setup device pointers. */
	ret = 0;

	rsp = ha->rsp_q_map[0];
	req = vha->req;

	/* So we know we haven't pci_map'ed anything yet */
	tot_dsds = 0;

	/* Forcing marker needed for now */
	vha->marker_needed = 0;

	/* Send marker if required */
	if (vha->marker_needed != 0) {
		if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
		    QLA_SUCCESS)
			return QLA_FUNCTION_FAILED;
		vha->marker_needed = 0;
	}

	/* Acquire ring specific lock */
	spin_lock_irqsave(&ha->hardware_lock, flags);

	/* Check for room in outstanding command list. */
	handle = req->current_outstanding_cmd;
	for (index = 1; index < req->num_outstanding_cmds; index++) {
		handle++;
		if (handle == req->num_outstanding_cmds)
			handle = 1;
		if (!req->outstanding_cmds[handle])
			break;
	}
	if (index == req->num_outstanding_cmds)
		goto queuing_error;

	/* Map the sg table so we have an accurate count of sg entries needed */
	if (scsi_sg_count(cmd)) {
		nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
		    scsi_sg_count(cmd), cmd->sc_data_direction);
		if (unlikely(!nseg))
			goto queuing_error;
	} else
		nseg = 0;

	tot_dsds = nseg;
	req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
	if (req->cnt < (req_cnt + 2)) {
		cnt = RD_REG_DWORD_RELAXED(req->req_q_out);

		if (req->ring_index < cnt)
			req->cnt = cnt - req->ring_index;
		else
			req->cnt = req->length -
				(req->ring_index - cnt);
		if (req->cnt < (req_cnt + 2))
			goto queuing_error;
	}

	/* Build command packet. */
	req->current_outstanding_cmd = handle;
	req->outstanding_cmds[handle] = sp;
	sp->handle = handle;
	cmd->host_scribble = (unsigned char *)(unsigned long)handle;
	req->cnt -= req_cnt;

	cmd_pkt = (struct cmd_type_7_fx00 *)req->ring_ptr;

	memset(&lcmd_pkt, 0, REQUEST_ENTRY_SIZE);

	lcmd_pkt.handle = MAKE_HANDLE(req->id, sp->handle);
	lcmd_pkt.handle_hi = 0;
	lcmd_pkt.dseg_count = cpu_to_le16(tot_dsds);
	lcmd_pkt.tgt_idx = cpu_to_le16(sp->fcport->tgt_id);

	int_to_scsilun(cmd->device->lun, &llun);
	host_to_adap((uint8_t *)&llun, (uint8_t *)&lcmd_pkt.lun,
	    sizeof(lcmd_pkt.lun));

	/* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */
	if (scsi_populate_tag_msg(cmd, tag)) {
		switch (tag[0]) {
		case HEAD_OF_QUEUE_TAG:
			lcmd_pkt.task = TSK_HEAD_OF_QUEUE;
			break;
		case ORDERED_QUEUE_TAG:
			lcmd_pkt.task = TSK_ORDERED;
			break;
		}
	}

	/* Load SCSI command packet. */
	host_to_adap(cmd->cmnd, lcmd_pkt.fcp_cdb, sizeof(lcmd_pkt.fcp_cdb));
	lcmd_pkt.byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));

	/* Build IOCB segments */
	qlafx00_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, &lcmd_pkt);

	/* Set total data segment count. */
	lcmd_pkt.entry_count = (uint8_t)req_cnt;

	/* Specify response queue number where completion should happen */
	lcmd_pkt.entry_status = (uint8_t) rsp->id;

	ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e,
	    (uint8_t *)cmd->cmnd, cmd->cmd_len);
	ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x3032,
	    (uint8_t *)&lcmd_pkt, REQUEST_ENTRY_SIZE);

	memcpy_toio((void __iomem *)cmd_pkt, &lcmd_pkt, REQUEST_ENTRY_SIZE);
	wmb();

	/* Adjust ring index. */
	req->ring_index++;
	if (req->ring_index == req->length) {
		req->ring_index = 0;
		req->ring_ptr = req->ring;
	} else
		req->ring_ptr++;

	sp->flags |= SRB_DMA_VALID;

	/* Set chip new ring index. */
	WRT_REG_DWORD(req->req_q_in, req->ring_index);
	QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);

	spin_unlock_irqrestore(&ha->hardware_lock, flags);
	return QLA_SUCCESS;

queuing_error:
	if (tot_dsds)
		scsi_dma_unmap(cmd);

	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	return QLA_FUNCTION_FAILED;
}

void
qlafx00_tm_iocb(srb_t *sp, struct tsk_mgmt_entry_fx00 *ptm_iocb)
{
	struct srb_iocb *fxio = &sp->u.iocb_cmd;
	scsi_qla_host_t *vha = sp->fcport->vha;
	struct req_que *req = vha->req;
	struct tsk_mgmt_entry_fx00 tm_iocb;
	struct scsi_lun llun;

	memset(&tm_iocb, 0, sizeof(struct tsk_mgmt_entry_fx00));
	tm_iocb.entry_type = TSK_MGMT_IOCB_TYPE_FX00;
	tm_iocb.entry_count = 1;
	tm_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
	tm_iocb.handle_hi = 0;
	tm_iocb.timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2);
	tm_iocb.tgt_id = cpu_to_le16(sp->fcport->tgt_id);
	tm_iocb.control_flags = cpu_to_le32(fxio->u.tmf.flags);
3266
	if (tm_iocb.control_flags == cpu_to_le32((uint32_t)TCF_LUN_RESET)) {
3267 3268 3269 3270 3271
		int_to_scsilun(fxio->u.tmf.lun, &llun);
		host_to_adap((uint8_t *)&llun, (uint8_t *)&tm_iocb.lun,
		    sizeof(struct scsi_lun));
	}

3272
	memcpy((void *)ptm_iocb, &tm_iocb,
3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293
	    sizeof(struct tsk_mgmt_entry_fx00));
	wmb();
}

void
qlafx00_abort_iocb(srb_t *sp, struct abort_iocb_entry_fx00 *pabt_iocb)
{
	struct srb_iocb *fxio = &sp->u.iocb_cmd;
	scsi_qla_host_t *vha = sp->fcport->vha;
	struct req_que *req = vha->req;
	struct abort_iocb_entry_fx00 abt_iocb;

	memset(&abt_iocb, 0, sizeof(struct abort_iocb_entry_fx00));
	abt_iocb.entry_type = ABORT_IOCB_TYPE_FX00;
	abt_iocb.entry_count = 1;
	abt_iocb.handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
	abt_iocb.abort_handle =
	    cpu_to_le32(MAKE_HANDLE(req->id, fxio->u.abt.cmd_hndl));
	abt_iocb.tgt_id_sts = cpu_to_le16(sp->fcport->tgt_id);
	abt_iocb.req_que_no = cpu_to_le16(req->id);

3294
	memcpy((void *)pabt_iocb, &abt_iocb,
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	    sizeof(struct abort_iocb_entry_fx00));
	wmb();
}

void
qlafx00_fxdisc_iocb(srb_t *sp, struct fxdisc_entry_fx00 *pfxiocb)
{
	struct srb_iocb *fxio = &sp->u.iocb_cmd;
	struct qla_mt_iocb_rqst_fx00 *piocb_rqst;
	struct fc_bsg_job *bsg_job;
	struct fxdisc_entry_fx00 fx_iocb;
	uint8_t entry_cnt = 1;

	memset(&fx_iocb, 0, sizeof(struct fxdisc_entry_fx00));
	fx_iocb.entry_type = FX00_IOCB_TYPE;
	fx_iocb.handle = cpu_to_le32(sp->handle);
	fx_iocb.entry_count = entry_cnt;

	if (sp->type == SRB_FXIOCB_DCMD) {
		fx_iocb.func_num =
3315 3316 3317 3318 3319 3320
		    sp->u.iocb_cmd.u.fxiocb.req_func_type;
		fx_iocb.adapid = fxio->u.fxiocb.adapter_id;
		fx_iocb.adapid_hi = fxio->u.fxiocb.adapter_id_hi;
		fx_iocb.reserved_0 = fxio->u.fxiocb.reserved_0;
		fx_iocb.reserved_1 = fxio->u.fxiocb.reserved_1;
		fx_iocb.dataword_extra = fxio->u.fxiocb.req_data_extra;
3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346

		if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DMA_VALID) {
			fx_iocb.req_dsdcnt = cpu_to_le16(1);
			fx_iocb.req_xfrcnt =
			    cpu_to_le16(fxio->u.fxiocb.req_len);
			fx_iocb.dseg_rq_address[0] =
			    cpu_to_le32(LSD(fxio->u.fxiocb.req_dma_handle));
			fx_iocb.dseg_rq_address[1] =
			    cpu_to_le32(MSD(fxio->u.fxiocb.req_dma_handle));
			fx_iocb.dseg_rq_len =
			    cpu_to_le32(fxio->u.fxiocb.req_len);
		}

		if (fxio->u.fxiocb.flags & SRB_FXDISC_RESP_DMA_VALID) {
			fx_iocb.rsp_dsdcnt = cpu_to_le16(1);
			fx_iocb.rsp_xfrcnt =
			    cpu_to_le16(fxio->u.fxiocb.rsp_len);
			fx_iocb.dseg_rsp_address[0] =
			    cpu_to_le32(LSD(fxio->u.fxiocb.rsp_dma_handle));
			fx_iocb.dseg_rsp_address[1] =
			    cpu_to_le32(MSD(fxio->u.fxiocb.rsp_dma_handle));
			fx_iocb.dseg_rsp_len =
			    cpu_to_le32(fxio->u.fxiocb.rsp_len);
		}

		if (fxio->u.fxiocb.flags & SRB_FXDISC_REQ_DWRD_VALID) {
3347
			fx_iocb.dataword = fxio->u.fxiocb.req_data;
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		}
		fx_iocb.flags = fxio->u.fxiocb.flags;
	} else {
		struct scatterlist *sg;
		bsg_job = sp->u.bsg_job;
		piocb_rqst = (struct qla_mt_iocb_rqst_fx00 *)
			&bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];

		fx_iocb.func_num = piocb_rqst->func_type;
		fx_iocb.adapid = piocb_rqst->adapid;
		fx_iocb.adapid_hi = piocb_rqst->adapid_hi;
		fx_iocb.reserved_0 = piocb_rqst->reserved_0;
		fx_iocb.reserved_1 = piocb_rqst->reserved_1;
		fx_iocb.dataword_extra = piocb_rqst->dataword_extra;
		fx_iocb.dataword = piocb_rqst->dataword;
3363 3364
		fx_iocb.req_xfrcnt = piocb_rqst->req_len;
		fx_iocb.rsp_xfrcnt = piocb_rqst->rsp_len;
3365 3366 3367 3368 3369

		if (piocb_rqst->flags & SRB_FXDISC_REQ_DMA_VALID) {
			int avail_dsds, tot_dsds;
			cont_a64_entry_t lcont_pkt;
			cont_a64_entry_t *cont_pkt = NULL;
3370
			__le32 *cur_dsd;
3371 3372 3373 3374 3375
			int index = 0, cont = 0;

			fx_iocb.req_dsdcnt =
			    cpu_to_le16(bsg_job->request_payload.sg_cnt);
			tot_dsds =
3376 3377
			    bsg_job->request_payload.sg_cnt;
			cur_dsd = (__le32 *)&fx_iocb.dseg_rq_address[0];
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			avail_dsds = 1;
			for_each_sg(bsg_job->request_payload.sg_list, sg,
			    tot_dsds, index) {
				dma_addr_t sle_dma;

				/* Allocate additional continuation packets? */
				if (avail_dsds == 0) {
					/*
					 * Five DSDs are available in the Cont.
					 * Type 1 IOCB.
					 */
					memset(&lcont_pkt, 0,
					    REQUEST_ENTRY_SIZE);
					cont_pkt =
					    qlafx00_prep_cont_type1_iocb(
						sp->fcport->vha->req,
						&lcont_pkt);
3395
					cur_dsd = (__le32 *)
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					    lcont_pkt.dseg_0_address;
					avail_dsds = 5;
					cont = 1;
					entry_cnt++;
				}

				sle_dma = sg_dma_address(sg);
				*cur_dsd++   = cpu_to_le32(LSD(sle_dma));
				*cur_dsd++   = cpu_to_le32(MSD(sle_dma));
				*cur_dsd++   = cpu_to_le32(sg_dma_len(sg));
				avail_dsds--;

				if (avail_dsds == 0 && cont == 1) {
					cont = 0;
					memcpy_toio(
					    (void __iomem *)cont_pkt,
					    &lcont_pkt, REQUEST_ENTRY_SIZE);
					ql_dump_buffer(
					    ql_dbg_user + ql_dbg_verbose,
					    sp->fcport->vha, 0x3042,
					    (uint8_t *)&lcont_pkt,
					     REQUEST_ENTRY_SIZE);
				}
			}
			if (avail_dsds != 0 && cont == 1) {
				memcpy_toio((void __iomem *)cont_pkt,
				    &lcont_pkt, REQUEST_ENTRY_SIZE);
				ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
				    sp->fcport->vha, 0x3043,
				    (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
			}
		}

		if (piocb_rqst->flags & SRB_FXDISC_RESP_DMA_VALID) {
			int avail_dsds, tot_dsds;
			cont_a64_entry_t lcont_pkt;
			cont_a64_entry_t *cont_pkt = NULL;
3433
			__le32 *cur_dsd;
3434 3435 3436 3437
			int index = 0, cont = 0;

			fx_iocb.rsp_dsdcnt =
			   cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3438 3439
			tot_dsds = bsg_job->reply_payload.sg_cnt;
			cur_dsd = (__le32 *)&fx_iocb.dseg_rsp_address[0];
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			avail_dsds = 1;

			for_each_sg(bsg_job->reply_payload.sg_list, sg,
			    tot_dsds, index) {
				dma_addr_t sle_dma;

				/* Allocate additional continuation packets? */
				if (avail_dsds == 0) {
					/*
					* Five DSDs are available in the Cont.
					* Type 1 IOCB.
					*/
					memset(&lcont_pkt, 0,
					    REQUEST_ENTRY_SIZE);
					cont_pkt =
					    qlafx00_prep_cont_type1_iocb(
						sp->fcport->vha->req,
						&lcont_pkt);
3458
					cur_dsd = (__le32 *)
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					    lcont_pkt.dseg_0_address;
					avail_dsds = 5;
					cont = 1;
					entry_cnt++;
				}

				sle_dma = sg_dma_address(sg);
				*cur_dsd++   = cpu_to_le32(LSD(sle_dma));
				*cur_dsd++   = cpu_to_le32(MSD(sle_dma));
				*cur_dsd++   = cpu_to_le32(sg_dma_len(sg));
				avail_dsds--;

				if (avail_dsds == 0 && cont == 1) {
					cont = 0;
					memcpy_toio((void __iomem *)cont_pkt,
					    &lcont_pkt,
					    REQUEST_ENTRY_SIZE);
					ql_dump_buffer(
					    ql_dbg_user + ql_dbg_verbose,
					    sp->fcport->vha, 0x3045,
					    (uint8_t *)&lcont_pkt,
					    REQUEST_ENTRY_SIZE);
				}
			}
			if (avail_dsds != 0 && cont == 1) {
				memcpy_toio((void __iomem *)cont_pkt,
				    &lcont_pkt, REQUEST_ENTRY_SIZE);
				ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
				    sp->fcport->vha, 0x3046,
				    (uint8_t *)&lcont_pkt, REQUEST_ENTRY_SIZE);
			}
		}

		if (piocb_rqst->flags & SRB_FXDISC_REQ_DWRD_VALID)
3493
			fx_iocb.dataword = piocb_rqst->dataword;
3494 3495 3496 3497 3498 3499 3500 3501
		fx_iocb.flags = piocb_rqst->flags;
		fx_iocb.entry_count = entry_cnt;
	}

	ql_dump_buffer(ql_dbg_user + ql_dbg_verbose,
	    sp->fcport->vha, 0x3047,
	    (uint8_t *)&fx_iocb, sizeof(struct fxdisc_entry_fx00));

3502
	memcpy((void *)pfxiocb, &fx_iocb,
3503 3504 3505
	    sizeof(struct fxdisc_entry_fx00));
	wmb();
}