qla_init.c 96.4 KB
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/*
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 * QLogic Fibre Channel HBA Driver
 * Copyright (c)  2003-2005 QLogic Corporation
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 *
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 * See LICENSE.qla2xxx for copyright and licensing details.
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 */
#include "qla_def.h"

#include <linux/delay.h>
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#include <linux/vmalloc.h>
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#include "qla_devtbl.h"

/* XXX(hch): this is ugly, but we don't want to pull in exioctl.h */
#ifndef EXT_IS_LUN_BIT_SET
#define EXT_IS_LUN_BIT_SET(P,L) \
    (((P)->mask[L/8] & (0x80 >> (L%8)))?1:0)
#define EXT_SET_LUN_BIT(P,L) \
    ((P)->mask[L/8] |= (0x80 >> (L%8)))
#endif

/*
*  QLogic ISP2x00 Hardware Support Function Prototypes.
*/
static int qla2x00_isp_firmware(scsi_qla_host_t *);
static void qla2x00_resize_request_q(scsi_qla_host_t *);
static int qla2x00_setup_chip(scsi_qla_host_t *);
static void qla2x00_init_response_q_entries(scsi_qla_host_t *);
static int qla2x00_init_rings(scsi_qla_host_t *);
static int qla2x00_fw_ready(scsi_qla_host_t *);
static int qla2x00_configure_hba(scsi_qla_host_t *);
static int qla2x00_configure_loop(scsi_qla_host_t *);
static int qla2x00_configure_local_loop(scsi_qla_host_t *);
static int qla2x00_configure_fabric(scsi_qla_host_t *);
static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
static int qla2x00_device_resync(scsi_qla_host_t *);
static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
    uint16_t *);

static int qla2x00_restart_isp(scsi_qla_host_t *);

/****************************************************************************/
/*                QLogic ISP2x00 Hardware Support Functions.                */
/****************************************************************************/

/*
* qla2x00_initialize_adapter
*      Initialize board.
*
* Input:
*      ha = adapter block pointer.
*
* Returns:
*      0 = success
*/
int
qla2x00_initialize_adapter(scsi_qla_host_t *ha)
{
	int	rval;
	uint8_t	restart_risc = 0;
	uint8_t	retry;
	uint32_t wait_time;

	/* Clear adapter flags. */
	ha->flags.online = 0;
	ha->flags.reset_active = 0;
	atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
	atomic_set(&ha->loop_state, LOOP_DOWN);
	ha->device_flags = 0;
	ha->dpc_flags = 0;
	ha->flags.management_server_logged_in = 0;
	ha->marker_needed = 0;
	ha->mbx_flags = 0;
	ha->isp_abort_cnt = 0;
	ha->beacon_blink_led = 0;
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	set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
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	qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
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	rval = ha->isp_ops.pci_config(ha);
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	if (rval) {
		DEBUG2(printk("scsi(%ld): Unable to configure PCI space=n",
		    ha->host_no));
		return (rval);
	}

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	ha->isp_ops.reset_chip(ha);
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	qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
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	ha->isp_ops.nvram_config(ha);
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	qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");

	retry = 10;
	/*
	 * Try to configure the loop.
	 */
	do {
		restart_risc = 0;

		/* If firmware needs to be loaded */
		if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
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			if ((rval = ha->isp_ops.chip_diag(ha)) == QLA_SUCCESS) {
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				rval = qla2x00_setup_chip(ha);
			}
		}

		if (rval == QLA_SUCCESS &&
		    (rval = qla2x00_init_rings(ha)) == QLA_SUCCESS) {
check_fw_ready_again:
			/*
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			 * Wait for a successful LIP up to a maximum
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			 * of (in seconds): RISC login timeout value,
			 * RISC retry count value, and port down retry
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			 * value OR a minimum of 4 seconds OR If no
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			 * cable, only 5 seconds.
			 */
			rval = qla2x00_fw_ready(ha);
			if (rval == QLA_SUCCESS) {
				clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);

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				/* Issue a marker after FW becomes ready. */
				qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);

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				/*
				 * Wait at most MAX_TARGET RSCNs for a stable
				 * link.
				 */
				wait_time = 256;
				do {
					clear_bit(LOOP_RESYNC_NEEDED,
					    &ha->dpc_flags);
					rval = qla2x00_configure_loop(ha);

					if (test_and_clear_bit(ISP_ABORT_NEEDED,
					    &ha->dpc_flags)) {
						restart_risc = 1;
						break;
					}

					/*
					 * If loop state change while we were
					 * discoverying devices then wait for
					 * LIP to complete
					 */

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					if (atomic_read(&ha->loop_state) !=
					    LOOP_READY && retry--) {
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						goto check_fw_ready_again;
					}
					wait_time--;
				} while (!atomic_read(&ha->loop_down_timer) &&
				    retry &&
				    wait_time &&
				    (test_bit(LOOP_RESYNC_NEEDED,
					&ha->dpc_flags)));

				if (wait_time == 0)
					rval = QLA_FUNCTION_FAILED;
			} else if (ha->device_flags & DFLG_NO_CABLE)
				/* If no cable, then all is good. */
				rval = QLA_SUCCESS;
		}
	} while (restart_risc && retry--);

	if (rval == QLA_SUCCESS) {
		clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
		qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
		ha->marker_needed = 0;

		ha->flags.online = 1;
	} else {
		DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
	}

	return (rval);
}

/**
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 * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
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 * @ha: HA context
 *
 * Returns 0 on success.
 */
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int
qla2100_pci_config(scsi_qla_host_t *ha)
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{
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	uint16_t w, mwi;
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	uint32_t d;
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	unsigned long flags;
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	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
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	pci_set_master(ha->pdev);
	mwi = 0;
	if (pci_set_mwi(ha->pdev))
		mwi = PCI_COMMAND_INVALIDATE;

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

	/* Reset expansion ROM address decode enable */
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	pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
	d &= ~PCI_ROM_ADDRESS_ENABLE;
	pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
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	/* Get PCI bus information. */
	spin_lock_irqsave(&ha->hardware_lock, flags);
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	ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
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	spin_unlock_irqrestore(&ha->hardware_lock, flags);

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	return QLA_SUCCESS;
}
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/**
 * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
int
qla2300_pci_config(scsi_qla_host_t *ha)
{
	uint16_t	w, mwi;
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	uint32_t	d;
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	unsigned long   flags = 0;
	uint32_t	cnt;
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	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
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	pci_set_master(ha->pdev);
	mwi = 0;
	if (pci_set_mwi(ha->pdev))
		mwi = PCI_COMMAND_INVALIDATE;
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	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
	w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
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	if (IS_QLA2322(ha) || IS_QLA6322(ha))
		w &= ~PCI_COMMAND_INTX_DISABLE;
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	/*
	 * If this is a 2300 card and not 2312, reset the
	 * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
	 * the 2310 also reports itself as a 2300 so we need to get the
	 * fb revision level -- a 6 indicates it really is a 2300 and
	 * not a 2310.
	 */
	if (IS_QLA2300(ha)) {
		spin_lock_irqsave(&ha->hardware_lock, flags);
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		/* Pause RISC. */
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		WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
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		for (cnt = 0; cnt < 30000; cnt++) {
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			if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
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				break;
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			udelay(10);
		}
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		/* Select FPM registers. */
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		WRT_REG_WORD(&reg->ctrl_status, 0x20);
		RD_REG_WORD(&reg->ctrl_status);
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		/* Get the fb rev level */
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		ha->fb_rev = RD_FB_CMD_REG(ha, reg);
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		if (ha->fb_rev == FPM_2300)
			w &= ~PCI_COMMAND_INVALIDATE;

		/* Deselect FPM registers. */
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		WRT_REG_WORD(&reg->ctrl_status, 0x0);
		RD_REG_WORD(&reg->ctrl_status);
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		/* Release RISC module. */
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		WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
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		for (cnt = 0; cnt < 30000; cnt++) {
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			if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
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				break;

			udelay(10);
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		}

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		spin_unlock_irqrestore(&ha->hardware_lock, flags);
	}
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	pci_write_config_word(ha->pdev, PCI_COMMAND, w);

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	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);

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	/* Reset expansion ROM address decode enable */
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	pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
	d &= ~PCI_ROM_ADDRESS_ENABLE;
	pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
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	/* Get PCI bus information. */
	spin_lock_irqsave(&ha->hardware_lock, flags);
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	ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
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	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	return QLA_SUCCESS;
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}

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/**
 * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
int
qla24xx_pci_config(scsi_qla_host_t *ha)
{
	uint16_t w, mwi;
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	uint32_t d;
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	unsigned long flags = 0;
	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
	int pcix_cmd_reg, pcie_dctl_reg;

	pci_set_master(ha->pdev);
	mwi = 0;
	if (pci_set_mwi(ha->pdev))
		mwi = PCI_COMMAND_INVALIDATE;

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

	pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);

	/* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
	pcix_cmd_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX);
	if (pcix_cmd_reg) {
		uint16_t pcix_cmd;

		pcix_cmd_reg += PCI_X_CMD;
		pci_read_config_word(ha->pdev, pcix_cmd_reg, &pcix_cmd);
		pcix_cmd &= ~PCI_X_CMD_MAX_READ;
		pcix_cmd |= 0x0008;
		pci_write_config_word(ha->pdev, pcix_cmd_reg, pcix_cmd);
	}

	/* PCIe -- adjust Maximum Read Request Size (2048). */
	pcie_dctl_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
	if (pcie_dctl_reg) {
		uint16_t pcie_dctl;

		pcie_dctl_reg += PCI_EXP_DEVCTL;
		pci_read_config_word(ha->pdev, pcie_dctl_reg, &pcie_dctl);
		pcie_dctl &= ~PCI_EXP_DEVCTL_READRQ;
		pcie_dctl |= 0x4000;
		pci_write_config_word(ha->pdev, pcie_dctl_reg, pcie_dctl);
	}

	/* Reset expansion ROM address decode enable */
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	pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d);
	d &= ~PCI_ROM_ADDRESS_ENABLE;
	pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);
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	/* Get PCI bus information. */
	spin_lock_irqsave(&ha->hardware_lock, flags);
	ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	return QLA_SUCCESS;
}

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/**
 * qla2x00_isp_firmware() - Choose firmware image.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
static int
qla2x00_isp_firmware(scsi_qla_host_t *ha)
{
	int  rval;

	/* Assume loading risc code */
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	rval = QLA_FUNCTION_FAILED;
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	if (ha->flags.disable_risc_code_load) {
		DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
		    ha->host_no));
		qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");

		/* Verify checksum of loaded RISC code. */
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		rval = qla2x00_verify_checksum(ha, ha->fw_srisc_address);
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	}

	if (rval) {
		DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
		    ha->host_no));
	}

	return (rval);
}

/**
 * qla2x00_reset_chip() - Reset ISP chip.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
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void
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qla2x00_reset_chip(scsi_qla_host_t *ha)
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{
	unsigned long   flags = 0;
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	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
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	uint32_t	cnt;
	uint16_t	cmd;

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	ha->isp_ops.disable_intrs(ha);
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	spin_lock_irqsave(&ha->hardware_lock, flags);

	/* Turn off master enable */
	cmd = 0;
	pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
	cmd &= ~PCI_COMMAND_MASTER;
	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);

	if (!IS_QLA2100(ha)) {
		/* Pause RISC. */
		WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
		if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
			for (cnt = 0; cnt < 30000; cnt++) {
				if ((RD_REG_WORD(&reg->hccr) &
				    HCCR_RISC_PAUSE) != 0)
					break;
				udelay(100);
			}
		} else {
			RD_REG_WORD(&reg->hccr);	/* PCI Posting. */
			udelay(10);
		}

		/* Select FPM registers. */
		WRT_REG_WORD(&reg->ctrl_status, 0x20);
		RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */

		/* FPM Soft Reset. */
		WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
		RD_REG_WORD(&reg->fpm_diag_config);	/* PCI Posting. */

		/* Toggle Fpm Reset. */
		if (!IS_QLA2200(ha)) {
			WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
			RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
		}

		/* Select frame buffer registers. */
		WRT_REG_WORD(&reg->ctrl_status, 0x10);
		RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */

		/* Reset frame buffer FIFOs. */
		if (IS_QLA2200(ha)) {
			WRT_FB_CMD_REG(ha, reg, 0xa000);
			RD_FB_CMD_REG(ha, reg);		/* PCI Posting. */
		} else {
			WRT_FB_CMD_REG(ha, reg, 0x00fc);

			/* Read back fb_cmd until zero or 3 seconds max */
			for (cnt = 0; cnt < 3000; cnt++) {
				if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
					break;
				udelay(100);
			}
		}

		/* Select RISC module registers. */
		WRT_REG_WORD(&reg->ctrl_status, 0);
		RD_REG_WORD(&reg->ctrl_status);		/* PCI Posting. */

		/* Reset RISC processor. */
		WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */

		/* Release RISC processor. */
		WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */
	}

	WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
	WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);

	/* Reset ISP chip. */
	WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);

	/* Wait for RISC to recover from reset. */
	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
		/*
		 * It is necessary to for a delay here since the card doesn't
		 * respond to PCI reads during a reset. On some architectures
		 * this will result in an MCA.
		 */
		udelay(20);
		for (cnt = 30000; cnt; cnt--) {
			if ((RD_REG_WORD(&reg->ctrl_status) &
			    CSR_ISP_SOFT_RESET) == 0)
				break;
			udelay(100);
		}
	} else
		udelay(10);

	/* Reset RISC processor. */
	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);

	WRT_REG_WORD(&reg->semaphore, 0);

	/* Release RISC processor. */
	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */

	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
		for (cnt = 0; cnt < 30000; cnt++) {
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			if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
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				break;

			udelay(100);
		}
	} else
		udelay(100);

	/* Turn on master enable */
	cmd |= PCI_COMMAND_MASTER;
	pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);

	/* Disable RISC pause on FPM parity error. */
	if (!IS_QLA2100(ha)) {
		WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
		RD_REG_WORD(&reg->hccr);		/* PCI Posting. */
	}

	spin_unlock_irqrestore(&ha->hardware_lock, flags);
}

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/**
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 * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
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 * @ha: HA context
 *
 * Returns 0 on success.
 */
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static inline void
qla24xx_reset_risc(scsi_qla_host_t *ha)
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{
	unsigned long flags = 0;
	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
	uint32_t cnt, d2;
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	uint16_t wd;
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	spin_lock_irqsave(&ha->hardware_lock, flags);

	/* Reset RISC. */
	WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
	for (cnt = 0; cnt < 30000; cnt++) {
		if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
			break;

		udelay(10);
	}

	WRT_REG_DWORD(&reg->ctrl_status,
	    CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
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	pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
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	udelay(100);
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	/* Wait for firmware to complete NVRAM accesses. */
	d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
	for (cnt = 10000 ; cnt && d2; cnt--) {
		udelay(5);
		d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
		barrier();
	}

575
	/* Wait for soft-reset to complete. */
576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601
	d2 = RD_REG_DWORD(&reg->ctrl_status);
	for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
		udelay(5);
		d2 = RD_REG_DWORD(&reg->ctrl_status);
		barrier();
	}

	WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
	RD_REG_DWORD(&reg->hccr);

	WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
	RD_REG_DWORD(&reg->hccr);

	WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
	RD_REG_DWORD(&reg->hccr);

	d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
	for (cnt = 6000000 ; cnt && d2; cnt--) {
		udelay(5);
		d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
		barrier();
	}

	spin_unlock_irqrestore(&ha->hardware_lock, flags);
}

602 603 604 605 606 607 608 609 610 611 612 613 614 615 616
/**
 * qla24xx_reset_chip() - Reset ISP24xx chip.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
void
qla24xx_reset_chip(scsi_qla_host_t *ha)
{
	ha->isp_ops.disable_intrs(ha);

	/* Perform RISC reset. */
	qla24xx_reset_risc(ha);
}

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/**
 * qla2x00_chip_diag() - Test chip for proper operation.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
623
int
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qla2x00_chip_diag(scsi_qla_host_t *ha)
{
	int		rval;
627
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
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	unsigned long	flags = 0;
	uint16_t	data;
	uint32_t	cnt;
	uint16_t	mb[5];

	/* Assume a failed state */
	rval = QLA_FUNCTION_FAILED;

	DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
	    ha->host_no, (u_long)&reg->flash_address));

	spin_lock_irqsave(&ha->hardware_lock, flags);

	/* Reset ISP chip. */
	WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);

	/*
	 * We need to have a delay here since the card will not respond while
	 * in reset causing an MCA on some architectures.
	 */
	udelay(20);
	data = qla2x00_debounce_register(&reg->ctrl_status);
	for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
		udelay(5);
		data = RD_REG_WORD(&reg->ctrl_status);
		barrier();
	}

	if (!cnt)
		goto chip_diag_failed;

	DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
	    ha->host_no));

	/* Reset RISC processor. */
	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);

	/* Workaround for QLA2312 PCI parity error */
	if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
		data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
		for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
			udelay(5);
			data = RD_MAILBOX_REG(ha, reg, 0);
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			barrier();
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		}
	} else
		udelay(10);

	if (!cnt)
		goto chip_diag_failed;

	/* Check product ID of chip */
	DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no));

	mb[1] = RD_MAILBOX_REG(ha, reg, 1);
	mb[2] = RD_MAILBOX_REG(ha, reg, 2);
	mb[3] = RD_MAILBOX_REG(ha, reg, 3);
	mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
	if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
	    mb[3] != PROD_ID_3) {
		qla_printk(KERN_WARNING, ha,
		    "Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);

		goto chip_diag_failed;
	}
	ha->product_id[0] = mb[1];
	ha->product_id[1] = mb[2];
	ha->product_id[2] = mb[3];
	ha->product_id[3] = mb[4];

	/* Adjust fw RISC transfer size */
	if (ha->request_q_length > 1024)
		ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
	else
		ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
		    ha->request_q_length;

	if (IS_QLA2200(ha) &&
	    RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
		/* Limit firmware transfer size with a 2200A */
		DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
		    ha->host_no));

712
		ha->device_type |= DT_ISP2200A;
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		ha->fw_transfer_size = 128;
	}

	/* Wrap Incoming Mailboxes Test. */
	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no));
	rval = qla2x00_mbx_reg_test(ha);
	if (rval) {
		DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha,
		    "Failed mailbox send register test\n");
	}
	else {
		/* Flag a successful rval */
		rval = QLA_SUCCESS;
	}
	spin_lock_irqsave(&ha->hardware_lock, flags);

chip_diag_failed:
	if (rval)
		DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
		    "****\n", ha->host_no));

	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	return (rval);
}

743 744 745 746 747 748 749 750 751 752 753
/**
 * qla24xx_chip_diag() - Test ISP24xx for proper operation.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
int
qla24xx_chip_diag(scsi_qla_host_t *ha)
{
	int rval;

754 755
	/* Perform RISC reset. */
	qla24xx_reset_risc(ha);
756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775

	ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;

	rval = qla2x00_mbx_reg_test(ha);
	if (rval) {
		DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
		    ha->host_no));
		qla_printk(KERN_WARNING, ha,
		    "Failed mailbox send register test\n");
	} else {
		/* Flag a successful rval */
		rval = QLA_SUCCESS;
	}

	return rval;
}

static void
qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
{
776 777
	uint32_t dump_size = 0;

778
	ha->fw_dumped = 0;
779 780 781 782 783 784 785 786 787 788 789 790
	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
		dump_size = sizeof(struct qla2100_fw_dump);
	} else if (IS_QLA23XX(ha)) {
		dump_size = sizeof(struct qla2300_fw_dump);
		dump_size += (ha->fw_memory_size - 0x11000) * sizeof(uint16_t);
        } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
		dump_size = sizeof(struct qla24xx_fw_dump);
		dump_size += (ha->fw_memory_size - 0x100000) * sizeof(uint32_t);
	}

	ha->fw_dump = vmalloc(dump_size);
	if (ha->fw_dump)
791
		qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware "
792
		    "dump...\n", dump_size / 1024);
793 794
	else
		qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
795
		    "firmware dump!!!\n", dump_size / 1024);
796 797
}

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/**
 * qla2x00_resize_request_q() - Resize request queue given available ISP memory.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
static void
qla2x00_resize_request_q(scsi_qla_host_t *ha)
{
	int rval;
	uint16_t fw_iocb_cnt = 0;
	uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM;
	dma_addr_t request_dma;
	request_t *request_ring;

813 814
	qla2x00_alloc_fw_dump(ha);

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	/* Valid only on recent ISPs. */
	if (IS_QLA2100(ha) || IS_QLA2200(ha))
		return;

	/* Retrieve IOCB counts available to the firmware. */
	rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt);
	if (rval)
		return;
	/* No point in continuing if current settings are sufficient. */
	if (fw_iocb_cnt < 1024)
		return;
	if (ha->request_q_length >= request_q_length)
		return;

	/* Attempt to claim larger area for request queue. */
	request_ring = dma_alloc_coherent(&ha->pdev->dev,
	    (request_q_length + 1) * sizeof(request_t), &request_dma,
	    GFP_KERNEL);
	if (request_ring == NULL)
		return;

	/* Resize successful, report extensions. */
	qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n",
	    (ha->fw_memory_size + 1) / 1024);
	qla_printk(KERN_INFO, ha, "Resizing request queue depth "
	    "(%d -> %d)...\n", ha->request_q_length, request_q_length);

	/* Clear old allocations. */
	dma_free_coherent(&ha->pdev->dev,
	    (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring,
	    ha->request_dma);

	/* Begin using larger queue. */
	ha->request_q_length = request_q_length;
	ha->request_ring = request_ring;
	ha->request_dma = request_dma;
}

/**
 * qla2x00_setup_chip() - Load and start RISC firmware.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
static int
qla2x00_setup_chip(scsi_qla_host_t *ha)
{
862 863
	int rval;
	uint32_t srisc_address = 0;
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	/* Load firmware sequences */
866 867
	rval = ha->isp_ops.load_risc(ha, &srisc_address);
	if (rval == QLA_SUCCESS) {
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		DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
		    "code.\n", ha->host_no));

871
		rval = qla2x00_verify_checksum(ha, srisc_address);
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		if (rval == QLA_SUCCESS) {
			/* Start firmware execution. */
			DEBUG(printk("scsi(%ld): Checksum OK, start "
			    "firmware.\n", ha->host_no));

877
			rval = qla2x00_execute_fw(ha, srisc_address);
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			/* Retrieve firmware information. */
			if (rval == QLA_SUCCESS && ha->fw_major_version == 0) {
				qla2x00_get_fw_version(ha,
				    &ha->fw_major_version,
				    &ha->fw_minor_version,
				    &ha->fw_subminor_version,
				    &ha->fw_attributes, &ha->fw_memory_size);
				qla2x00_resize_request_q(ha);
			}
		} else {
			DEBUG2(printk(KERN_INFO
			    "scsi(%ld): ISP Firmware failed checksum.\n",
			    ha->host_no));
		}
	}

	if (rval) {
		DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
		    ha->host_no));
	}

	return (rval);
}

/**
 * qla2x00_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.
 */
static void
qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
{
	uint16_t cnt;
	response_t *pkt;

	pkt = ha->response_ring_ptr;
	for (cnt = 0; cnt < ha->response_q_length; cnt++) {
		pkt->signature = RESPONSE_PROCESSED;
		pkt++;
	}

}

/**
 * qla2x00_update_fw_options() - Read and process firmware options.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
931
void
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qla2x00_update_fw_options(scsi_qla_host_t *ha)
{
	uint16_t swing, emphasis, tx_sens, rx_sens;

	memset(ha->fw_options, 0, sizeof(ha->fw_options));
	qla2x00_get_fw_options(ha, ha->fw_options);

	if (IS_QLA2100(ha) || IS_QLA2200(ha))
		return;

	/* Serial Link options. */
	DEBUG3(printk("scsi(%ld): Serial link options:\n",
	    ha->host_no));
	DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
	    sizeof(ha->fw_seriallink_options)));

	ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
	if (ha->fw_seriallink_options[3] & BIT_2) {
		ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;

		/*  1G settings */
		swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
		emphasis = (ha->fw_seriallink_options[2] &
		    (BIT_4 | BIT_3)) >> 3;
		tx_sens = ha->fw_seriallink_options[0] &
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		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
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		rx_sens = (ha->fw_seriallink_options[0] &
		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
		ha->fw_options[10] = (emphasis << 14) | (swing << 8);
		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
			if (rx_sens == 0x0)
				rx_sens = 0x3;
			ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
			ha->fw_options[10] |= BIT_5 |
			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
			    (tx_sens & (BIT_1 | BIT_0));

		/*  2G settings */
		swing = (ha->fw_seriallink_options[2] &
		    (BIT_7 | BIT_6 | BIT_5)) >> 5;
		emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
		tx_sens = ha->fw_seriallink_options[1] &
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		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
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		rx_sens = (ha->fw_seriallink_options[1] &
		    (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
		ha->fw_options[11] = (emphasis << 14) | (swing << 8);
		if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
			if (rx_sens == 0x0)
				rx_sens = 0x3;
			ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
		} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
			ha->fw_options[11] |= BIT_5 |
			    ((rx_sens & (BIT_1 | BIT_0)) << 2) |
			    (tx_sens & (BIT_1 | BIT_0));
	}

	/* FCP2 options. */
	/*  Return command IOCBs without waiting for an ABTS to complete. */
	ha->fw_options[3] |= BIT_13;

	/* LED scheme. */
	if (ha->flags.enable_led_scheme)
		ha->fw_options[2] |= BIT_12;

997 998 999 1000
	/* Detect ISP6312. */
	if (IS_QLA6312(ha))
		ha->fw_options[2] |= BIT_13;

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	/* Update firmware options. */
	qla2x00_set_fw_options(ha, ha->fw_options);
}

1005 1006 1007 1008 1009 1010
void
qla24xx_update_fw_options(scsi_qla_host_t *ha)
{
	int rval;

	/* Update Serial Link options. */
1011
	if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1012 1013
		return;

1014 1015 1016 1017
	rval = qla2x00_set_serdes_params(ha,
	    le16_to_cpu(ha->fw_seriallink_options24[1]),
	    le16_to_cpu(ha->fw_seriallink_options24[2]),
	    le16_to_cpu(ha->fw_seriallink_options24[3]));
1018 1019 1020 1021 1022 1023
	if (rval != QLA_SUCCESS) {
		qla_printk(KERN_WARNING, ha,
		    "Unable to update Serial Link options (%x).\n", rval);
	}
}

1024 1025 1026
void
qla2x00_config_rings(struct scsi_qla_host *ha)
{
1027
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045

	/* Setup ring parameters in initialization control block. */
	ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
	ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
	ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
	ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
	ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
	ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
	ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
	ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));

	WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
	WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
	WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
	WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
	RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));		/* PCI Posting. */
}

1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069
void
qla24xx_config_rings(struct scsi_qla_host *ha)
{
	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
	struct init_cb_24xx *icb;

	/* Setup ring parameters in initialization control block. */
	icb = (struct init_cb_24xx *)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(ha->request_q_length);
	icb->response_q_length = cpu_to_le16(ha->response_q_length);
	icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
	icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
	icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
	icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_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);
	RD_REG_DWORD(&reg->rsp_q_out);
}

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/**
 * qla2x00_init_rings() - Initializes firmware.
 * @ha: HA context
 *
 * Beginning of request ring has initialization control block already built
 * by nvram config routine.
 *
 * Returns 0 on success.
 */
static int
qla2x00_init_rings(scsi_qla_host_t *ha)
{
	int	rval;
	unsigned long flags = 0;
	int cnt;

	spin_lock_irqsave(&ha->hardware_lock, flags);

	/* Clear outstanding commands array. */
	for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
		ha->outstanding_cmds[cnt] = NULL;

	ha->current_outstanding_cmd = 0;

	/* Clear RSCN queue. */
	ha->rscn_in_ptr = 0;
	ha->rscn_out_ptr = 0;

	/* Initialize firmware. */
	ha->request_ring_ptr  = ha->request_ring;
	ha->req_ring_index    = 0;
	ha->req_q_cnt         = ha->request_q_length;
	ha->response_ring_ptr = ha->response_ring;
	ha->rsp_ring_index    = 0;

	/* Initialize response queue entries */
	qla2x00_init_response_q_entries(ha);

1108
	ha->isp_ops.config_rings(ha);
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	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	/* Update any ISP specific firmware options before initialization. */
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	ha->isp_ops.update_fw_options(ha);
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	DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
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	rval = qla2x00_init_firmware(ha, ha->init_cb_size);
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	if (rval) {
		DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
		    ha->host_no));
	} else {
		DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
		    ha->host_no));
	}

	return (rval);
}

/**
 * qla2x00_fw_ready() - Waits for firmware ready.
 * @ha: HA context
 *
 * Returns 0 on success.
 */
static int
qla2x00_fw_ready(scsi_qla_host_t *ha)
{
	int		rval;
	unsigned long	wtime, mtime;
	uint16_t	min_wait;	/* Minimum wait time if loop is down */
	uint16_t	wait_time;	/* Wait time if loop is coming ready */
	uint16_t	fw_state;

	rval = QLA_SUCCESS;

	/* 20 seconds for loop down. */
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	min_wait = 20;
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	/*
	 * Firmware should take at most one RATOV to login, plus 5 seconds for
	 * our own processing.
	 */
	if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
		wait_time = min_wait;
	}

	/* Min wait time if loop down */
	mtime = jiffies + (min_wait * HZ);

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

	/* Wait for ISP to finish LIP */
	if (!ha->flags.init_done)
 		qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");

	DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
	    ha->host_no));

	do {
		rval = qla2x00_get_firmware_state(ha, &fw_state);
		if (rval == QLA_SUCCESS) {
			if (fw_state < FSTATE_LOSS_OF_SYNC) {
				ha->device_flags &= ~DFLG_NO_CABLE;
			}
			if (fw_state == FSTATE_READY) {
				DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
				    ha->host_no));

				qla2x00_get_retry_cnt(ha, &ha->retry_count,
				    &ha->login_timeout, &ha->r_a_tov);

				rval = QLA_SUCCESS;
				break;
			}

			rval = QLA_FUNCTION_FAILED;

			if (atomic_read(&ha->loop_down_timer) &&
			    (fw_state >= FSTATE_LOSS_OF_SYNC ||
				fw_state == FSTATE_WAIT_AL_PA)) {
				/* Loop down. Timeout on min_wait for states
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				 * other than Wait for Login.
				 */
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				if (time_after_eq(jiffies, mtime)) {
					qla_printk(KERN_INFO, ha,
					    "Cable is unplugged...\n");

					ha->device_flags |= DFLG_NO_CABLE;
					break;
				}
			}
		} else {
			/* Mailbox cmd failed. Timeout on min_wait. */
			if (time_after_eq(jiffies, mtime))
				break;
		}

		if (time_after_eq(jiffies, wtime))
			break;

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

		DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
		    ha->host_no, fw_state, jiffies));
	} while (1);

	DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
	    ha->host_no, fw_state, jiffies));

	if (rval) {
		DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
		    ha->host_no));
	}

	return (rval);
}

/*
*  qla2x00_configure_hba
*      Setup adapter context.
*
* Input:
*      ha = adapter state pointer.
*
* Returns:
*      0 = success
*
* Context:
*      Kernel context.
*/
static int
qla2x00_configure_hba(scsi_qla_host_t *ha)
{
	int       rval;
	uint16_t      loop_id;
	uint16_t      topo;
	uint8_t       al_pa;
	uint8_t       area;
	uint8_t       domain;
	char		connect_type[22];

	/* Get host addresses. */
	rval = qla2x00_get_adapter_id(ha,
	    &loop_id, &al_pa, &area, &domain, &topo);
	if (rval != QLA_SUCCESS) {
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		if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) ||
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		    (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
			DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
			    __func__, ha->host_no));
		} else {
			qla_printk(KERN_WARNING, ha,
			    "ERROR -- Unable to get host loop ID.\n");
			set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
		}
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		return (rval);
	}

	if (topo == 4) {
		qla_printk(KERN_INFO, ha,
			"Cannot get topology - retrying.\n");
		return (QLA_FUNCTION_FAILED);
	}

	ha->loop_id = loop_id;

	/* initialize */
	ha->min_external_loopid = SNS_FIRST_LOOP_ID;
	ha->operating_mode = LOOP;

	switch (topo) {
	case 0:
		DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
		    ha->host_no));
		ha->current_topology = ISP_CFG_NL;
		strcpy(connect_type, "(Loop)");
		break;

	case 1:
		DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
		    ha->host_no));
		ha->current_topology = ISP_CFG_FL;
		strcpy(connect_type, "(FL_Port)");
		break;

	case 2:
		DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
		    ha->host_no));
		ha->operating_mode = P2P;
		ha->current_topology = ISP_CFG_N;
		strcpy(connect_type, "(N_Port-to-N_Port)");
		break;

	case 3:
		DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
		    ha->host_no));
		ha->operating_mode = P2P;
		ha->current_topology = ISP_CFG_F;
		strcpy(connect_type, "(F_Port)");
		break;

	default:
		DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
		    "Using NL.\n",
		    ha->host_no, topo));
		ha->current_topology = ISP_CFG_NL;
		strcpy(connect_type, "(Loop)");
		break;
	}

	/* Save Host port and loop ID. */
	/* byte order - Big Endian */
	ha->d_id.b.domain = domain;
	ha->d_id.b.area = area;
	ha->d_id.b.al_pa = al_pa;

	if (!ha->flags.init_done)
 		qla_printk(KERN_INFO, ha,
		    "Topology - %s, Host Loop address 0x%x\n",
 		    connect_type, ha->loop_id);

	if (rval) {
		DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
	} else {
		DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
	}

	return(rval);
}

/*
* NVRAM configuration for ISP 2xxx
*
* Input:
*      ha                = adapter block pointer.
*
* Output:
*      initialization control block in response_ring
*      host adapters parameters in host adapter block
*
* Returns:
*      0 = success.
*/
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int
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qla2x00_nvram_config(scsi_qla_host_t *ha)
{
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	int             rval;
	uint8_t         chksum = 0;
	uint16_t        cnt;
	uint8_t         *dptr1, *dptr2;
	init_cb_t       *icb = ha->init_cb;
	nvram_t         *nv = (nvram_t *)ha->request_ring;
	uint8_t         *ptr = (uint8_t *)ha->request_ring;
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	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
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	rval = QLA_SUCCESS;

	/* Determine NVRAM starting address. */
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	ha->nvram_size = sizeof(nvram_t);
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	ha->nvram_base = 0;
	if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
		if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
			ha->nvram_base = 0x80;

	/* Get NVRAM data and calculate checksum. */
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	ha->isp_ops.read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size);
	for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
		chksum += *ptr++;
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	DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
	DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
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	    ha->nvram_size));
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	/* Bad NVRAM data, set defaults parameters. */
	if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
	    nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
		/* Reset NVRAM data. */
		qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
		    "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
		    nv->nvram_version);
		qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
		    "invalid -- WWPN) defaults.\n");

		/*
		 * Set default initialization control block.
		 */
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		memset(nv, 0, ha->nvram_size);
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		nv->parameter_block_version = ICB_VERSION;

		if (IS_QLA23XX(ha)) {
			nv->firmware_options[0] = BIT_2 | BIT_1;
			nv->firmware_options[1] = BIT_7 | BIT_5;
			nv->add_firmware_options[0] = BIT_5;
			nv->add_firmware_options[1] = BIT_5 | BIT_4;
			nv->frame_payload_size = __constant_cpu_to_le16(2048);
			nv->special_options[1] = BIT_7;
		} else if (IS_QLA2200(ha)) {
			nv->firmware_options[0] = BIT_2 | BIT_1;
			nv->firmware_options[1] = BIT_7 | BIT_5;
			nv->add_firmware_options[0] = BIT_5;
			nv->add_firmware_options[1] = BIT_5 | BIT_4;
			nv->frame_payload_size = __constant_cpu_to_le16(1024);
		} else if (IS_QLA2100(ha)) {
			nv->firmware_options[0] = BIT_3 | BIT_1;
			nv->firmware_options[1] = BIT_5;
			nv->frame_payload_size = __constant_cpu_to_le16(1024);
		}

		nv->max_iocb_allocation = __constant_cpu_to_le16(256);
		nv->execution_throttle = __constant_cpu_to_le16(16);
		nv->retry_count = 8;
		nv->retry_delay = 1;

		nv->port_name[0] = 33;
		nv->port_name[3] = 224;
		nv->port_name[4] = 139;

		nv->login_timeout = 4;

		/*
		 * Set default host adapter parameters
		 */
		nv->host_p[1] = BIT_2;
		nv->reset_delay = 5;
		nv->port_down_retry_count = 8;
		nv->max_luns_per_target = __constant_cpu_to_le16(8);
		nv->link_down_timeout = 60;

		rval = 1;
	}

#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
	/*
	 * The SN2 does not provide BIOS emulation which means you can't change
	 * potentially bogus BIOS settings. Force the use of default settings
	 * for link rate and frame size.  Hope that the rest of the settings
	 * are valid.
	 */
	if (ia64_platform_is("sn2")) {
		nv->frame_payload_size = __constant_cpu_to_le16(2048);
		if (IS_QLA23XX(ha))
			nv->special_options[1] = BIT_7;
	}
#endif

	/* Reset Initialization control block */
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	memset(icb, 0, ha->init_cb_size);
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	/*
	 * Setup driver NVRAM options.
	 */
	nv->firmware_options[0] |= (BIT_6 | BIT_1);
	nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
	nv->firmware_options[1] |= (BIT_5 | BIT_0);
	nv->firmware_options[1] &= ~BIT_4;

	if (IS_QLA23XX(ha)) {
		nv->firmware_options[0] |= BIT_2;
		nv->firmware_options[0] &= ~BIT_3;
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		nv->add_firmware_options[1] |= BIT_5 | BIT_4;
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		if (IS_QLA2300(ha)) {
			if (ha->fb_rev == FPM_2310) {
				strcpy(ha->model_number, "QLA2310");
			} else {
				strcpy(ha->model_number, "QLA2300");
			}
		} else {
			if (rval == 0 &&
			    memcmp(nv->model_number, BINZERO,
				    sizeof(nv->model_number)) != 0) {
				char *st, *en;

				strncpy(ha->model_number, nv->model_number,
				    sizeof(nv->model_number));
				st = en = ha->model_number;
				en += sizeof(nv->model_number) - 1;
				while (en > st) {
					if (*en != 0x20 && *en != 0x00)
						break;
					*en-- = '\0';
				}
			} else {
				uint16_t        index;

				index = (ha->pdev->subsystem_device & 0xff);
				if (index < QLA_MODEL_NAMES) {
					strcpy(ha->model_number,
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					    qla2x00_model_name[index * 2]);
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					ha->model_desc =
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					    qla2x00_model_name[index * 2 + 1];
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				} else {
					strcpy(ha->model_number, "QLA23xx");
				}
			}
		}
	} else if (IS_QLA2200(ha)) {
		nv->firmware_options[0] |= BIT_2;
		/*
		 * 'Point-to-point preferred, else loop' is not a safe
		 * connection mode setting.
		 */
		if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
		    (BIT_5 | BIT_4)) {
			/* Force 'loop preferred, else point-to-point'. */
			nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
			nv->add_firmware_options[0] |= BIT_5;
		}
		strcpy(ha->model_number, "QLA22xx");
	} else /*if (IS_QLA2100(ha))*/ {
		strcpy(ha->model_number, "QLA2100");
	}

	/*
	 * Copy over NVRAM RISC parameter block to initialization control block.
	 */
	dptr1 = (uint8_t *)icb;
	dptr2 = (uint8_t *)&nv->parameter_block_version;
	cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
	while (cnt--)
		*dptr1++ = *dptr2++;

	/* Copy 2nd half. */
	dptr1 = (uint8_t *)icb->add_firmware_options;
	cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
	while (cnt--)
		*dptr1++ = *dptr2++;

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	/* Use alternate WWN? */
	if (nv->host_p[1] & BIT_7) {
		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
	}

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	/* Prepare nodename */
	if ((icb->firmware_options[1] & BIT_6) == 0) {
		/*
		 * Firmware will apply the following mask if the nodename was
		 * not provided.
		 */
		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
		icb->node_name[0] &= 0xF0;
	}

	/*
	 * Set host adapter parameters.
	 */
	ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
	/* Always load RISC code on non ISP2[12]00 chips. */
	if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
		ha->flags.disable_risc_code_load = 0;
	ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
	ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
	ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
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	ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
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	ha->operating_mode =
	    (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;

	memcpy(ha->fw_seriallink_options, nv->seriallink_options,
	    sizeof(ha->fw_seriallink_options));

	/* save HBA serial number */
	ha->serial0 = icb->port_name[5];
	ha->serial1 = icb->port_name[6];
	ha->serial2 = icb->port_name[7];
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	ha->node_name = icb->node_name;
	ha->port_name = icb->port_name;
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	icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);

	ha->retry_count = nv->retry_count;

	/* Set minimum login_timeout to 4 seconds. */
	if (nv->login_timeout < ql2xlogintimeout)
		nv->login_timeout = ql2xlogintimeout;
	if (nv->login_timeout < 4)
		nv->login_timeout = 4;
	ha->login_timeout = nv->login_timeout;
	icb->login_timeout = nv->login_timeout;

	/* Set minimum RATOV to 200 tenths of a second. */
	ha->r_a_tov = 200;

	ha->loop_reset_delay = nv->reset_delay;

	/* Link Down Timeout = 0:
	 *
	 * 	When Port Down timer expires we will start returning
	 *	I/O's to OS with "DID_NO_CONNECT".
	 *
	 * Link Down Timeout != 0:
	 *
	 *	 The driver waits for the link to come up after link down
	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
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	 */
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	if (nv->link_down_timeout == 0) {
		ha->loop_down_abort_time =
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		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
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	} else {
		ha->link_down_timeout =	 nv->link_down_timeout;
		ha->loop_down_abort_time =
		    (LOOP_DOWN_TIME - ha->link_down_timeout);
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	}
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	/*
	 * Need enough time to try and get the port back.
	 */
	ha->port_down_retry_count = nv->port_down_retry_count;
	if (qlport_down_retry)
		ha->port_down_retry_count = qlport_down_retry;
	/* Set login_retry_count */
	ha->login_retry_count  = nv->retry_count;
	if (ha->port_down_retry_count == nv->port_down_retry_count &&
	    ha->port_down_retry_count > 3)
		ha->login_retry_count = ha->port_down_retry_count;
	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
		ha->login_retry_count = ha->port_down_retry_count;
	if (ql2xloginretrycount)
		ha->login_retry_count = ql2xloginretrycount;

	icb->lun_enables = __constant_cpu_to_le16(0);
	icb->command_resource_count = 0;
	icb->immediate_notify_resource_count = 0;
	icb->timeout = __constant_cpu_to_le16(0);

	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
		/* Enable RIO */
		icb->firmware_options[0] &= ~BIT_3;
		icb->add_firmware_options[0] &=
		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
		icb->add_firmware_options[0] |= BIT_2;
		icb->response_accumulation_timer = 3;
		icb->interrupt_delay_timer = 5;

		ha->flags.process_response_queue = 1;
	} else {
1648 1649 1650 1651 1652 1653 1654
		/* Enable ZIO. */
		if (!ha->flags.init_done) {
			ha->zio_mode = icb->add_firmware_options[0] &
			    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
			ha->zio_timer = icb->interrupt_delay_timer ?
			    icb->interrupt_delay_timer: 2;
		}
L
Linus Torvalds 已提交
1655 1656
		icb->add_firmware_options[0] &=
		    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
1657 1658
		ha->flags.process_response_queue = 0;
		if (ha->zio_mode != QLA_ZIO_DISABLED) {
1659 1660
			ha->zio_mode = QLA_ZIO_MODE_6;

1661 1662 1663
			DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer "
			    "delay (%d us).\n", ha->host_no, ha->zio_mode,
			    ha->zio_timer * 100));
L
Linus Torvalds 已提交
1664
			qla_printk(KERN_INFO, ha,
1665 1666
			    "ZIO mode %d enabled; timer delay (%d us).\n",
			    ha->zio_mode, ha->zio_timer * 100);
L
Linus Torvalds 已提交
1667

1668 1669
			icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
			icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
L
Linus Torvalds 已提交
1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680
			ha->flags.process_response_queue = 1;
		}
	}

	if (rval) {
		DEBUG2_3(printk(KERN_WARNING
		    "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
	}
	return (rval);
}

1681 1682 1683 1684
static void
qla2x00_rport_del(void *data)
{
	fc_port_t *fcport = data;
1685 1686 1687 1688 1689 1690 1691 1692 1693
	struct fc_rport *rport;
	unsigned long flags;

	spin_lock_irqsave(&fcport->rport_lock, flags);
	rport = fcport->drport;
	fcport->drport = NULL;
	spin_unlock_irqrestore(&fcport->rport_lock, flags);
	if (rport)
		fc_remote_port_delete(rport);
1694 1695 1696

}

L
Linus Torvalds 已提交
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/**
 * qla2x00_alloc_fcport() - Allocate a generic fcport.
 * @ha: HA context
 * @flags: allocation flags
 *
 * Returns a pointer to the allocated fcport, or NULL, if none available.
 */
fc_port_t *
A
Al Viro 已提交
1705
qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags)
L
Linus Torvalds 已提交
1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719
{
	fc_port_t *fcport;

	fcport = kmalloc(sizeof(fc_port_t), flags);
	if (fcport == NULL)
		return (fcport);

	/* Setup fcport template structure. */
	memset(fcport, 0, sizeof (fc_port_t));
	fcport->ha = ha;
	fcport->port_type = FCT_UNKNOWN;
	fcport->loop_id = FC_NO_LOOP_ID;
	atomic_set(&fcport->state, FCS_UNCONFIGURED);
	fcport->flags = FCF_RLC_SUPPORT;
1720
	fcport->supported_classes = FC_COS_UNSPECIFIED;
1721
	spin_lock_init(&fcport->rport_lock);
L
Linus Torvalds 已提交
1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738

	return (fcport);
}

/*
 * qla2x00_configure_loop
 *      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.
 */
static int
A
Andrew Vasquez 已提交
1739
qla2x00_configure_loop(scsi_qla_host_t *ha)
L
Linus Torvalds 已提交
1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779
{
	int  rval;
	unsigned long flags, save_flags;

	rval = QLA_SUCCESS;

	/* Get Initiator ID */
	if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
		rval = qla2x00_configure_hba(ha);
		if (rval != QLA_SUCCESS) {
			DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
			    ha->host_no));
			return (rval);
		}
	}

	save_flags = flags = ha->dpc_flags;
	DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
	    ha->host_no, flags));

	/*
	 * If we have both an RSCN and PORT UPDATE pending then handle them
	 * both at the same time.
	 */
	clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
	clear_bit(RSCN_UPDATE, &ha->dpc_flags);

	/* Determine what we need to do */
	if (ha->current_topology == ISP_CFG_FL &&
	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {

		ha->flags.rscn_queue_overflow = 1;
		set_bit(RSCN_UPDATE, &flags);

	} else if (ha->current_topology == ISP_CFG_F &&
	    (test_bit(LOCAL_LOOP_UPDATE, &flags))) {

		ha->flags.rscn_queue_overflow = 1;
		set_bit(RSCN_UPDATE, &flags);
		clear_bit(LOCAL_LOOP_UPDATE, &flags);
1780 1781 1782

	} else if (ha->current_topology == ISP_CFG_N) {
		clear_bit(RSCN_UPDATE, &flags);
L
Linus Torvalds 已提交
1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800

	} else if (!ha->flags.online ||
	    (test_bit(ABORT_ISP_ACTIVE, &flags))) {

		ha->flags.rscn_queue_overflow = 1;
		set_bit(RSCN_UPDATE, &flags);
		set_bit(LOCAL_LOOP_UPDATE, &flags);
	}

	if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
		if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
			rval = QLA_FUNCTION_FAILED;
		} else {
			rval = qla2x00_configure_local_loop(ha);
		}
	}

	if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
1801
		if (LOOP_TRANSITION(ha)) {
L
Linus Torvalds 已提交
1802 1803 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
			rval = QLA_FUNCTION_FAILED;
		} else {
			rval = qla2x00_configure_fabric(ha);
		}
	}

	if (rval == QLA_SUCCESS) {
		if (atomic_read(&ha->loop_down_timer) ||
		    test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
			rval = QLA_FUNCTION_FAILED;
		} else {
			atomic_set(&ha->loop_state, LOOP_READY);

			DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
		}
	}

	if (rval) {
		DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
		    __func__, ha->host_no));
	} else {
		DEBUG3(printk("%s: exiting normally\n", __func__));
	}

	/* Restore state if a resync event occured during processing */
	if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
		if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
			set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
		if (test_bit(RSCN_UPDATE, &save_flags))
			set_bit(RSCN_UPDATE, &ha->dpc_flags);
	}

	return (rval);
}



/*
 * qla2x00_configure_local_loop
 *	Updates Fibre Channel Device Database with local loop devices.
 *
 * Input:
 *	ha = adapter block pointer.
 *
 * Returns:
 *	0 = success.
 */
static int
A
Andrew Vasquez 已提交
1850
qla2x00_configure_local_loop(scsi_qla_host_t *ha)
L
Linus Torvalds 已提交
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 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912
{
	int		rval, rval2;
	int		found_devs;
	int		found;
	fc_port_t	*fcport, *new_fcport;

	uint16_t	index;
	uint16_t	entries;
	char		*id_iter;
	uint16_t	loop_id;
	uint8_t		domain, area, al_pa;

	found_devs = 0;
	new_fcport = NULL;
	entries = MAX_FIBRE_DEVICES;

	DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
	DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));

	/* Get list of logged in devices. */
	memset(ha->gid_list, 0, GID_LIST_SIZE);
	rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
	    &entries);
	if (rval != QLA_SUCCESS)
		goto cleanup_allocation;

	DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
	    ha->host_no, entries));
	DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
	    entries * sizeof(struct gid_list_info)));

	/* Allocate temporary fcport for any new fcports discovered. */
	new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
	if (new_fcport == NULL) {
		rval = QLA_MEMORY_ALLOC_FAILED;
		goto cleanup_allocation;
	}
	new_fcport->flags &= ~FCF_FABRIC_DEVICE;

	/*
	 * Mark local devices that were present with FCF_DEVICE_LOST for now.
	 */
	list_for_each_entry(fcport, &ha->fcports, list) {
		if (atomic_read(&fcport->state) == FCS_ONLINE &&
		    fcport->port_type != FCT_BROADCAST &&
		    (fcport->flags & FCF_FABRIC_DEVICE) == 0) {

			DEBUG(printk("scsi(%ld): Marking port lost, "
			    "loop_id=0x%04x\n",
			    ha->host_no, fcport->loop_id));

			atomic_set(&fcport->state, FCS_DEVICE_LOST);
			fcport->flags &= ~FCF_FARP_DONE;
		}
	}

	/* Add devices to port list. */
	id_iter = (char *)ha->gid_list;
	for (index = 0; index < entries; index++) {
		domain = ((struct gid_list_info *)id_iter)->domain;
		area = ((struct gid_list_info *)id_iter)->area;
		al_pa = ((struct gid_list_info *)id_iter)->al_pa;
1913
		if (IS_QLA2100(ha) || IS_QLA2200(ha))
L
Linus Torvalds 已提交
1914 1915
			loop_id = (uint16_t)
			    ((struct gid_list_info *)id_iter)->loop_id_2100;
1916
		else
L
Linus Torvalds 已提交
1917 1918
			loop_id = le16_to_cpu(
			    ((struct gid_list_info *)id_iter)->loop_id);
1919
		id_iter += ha->gid_list_info_size;
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Linus Torvalds 已提交
1920 1921 1922 1923 1924 1925

		/* Bypass reserved domain fields. */
		if ((domain & 0xf0) == 0xf0)
			continue;

		/* Bypass if not same domain and area of adapter. */
1926 1927
		if (area && domain &&
		    (area != ha->d_id.b.area || domain != ha->d_id.b.domain))
L
Linus Torvalds 已提交
1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944
			continue;

		/* Bypass invalid local loop ID. */
		if (loop_id > LAST_LOCAL_LOOP_ID)
			continue;

		/* Fill in member data. */
		new_fcport->d_id.b.domain = domain;
		new_fcport->d_id.b.area = area;
		new_fcport->d_id.b.al_pa = al_pa;
		new_fcport->loop_id = loop_id;
		rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
		if (rval2 != QLA_SUCCESS) {
			DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
			    "information -- get_port_database=%x, "
			    "loop_id=0x%04x\n",
			    ha->host_no, rval2, new_fcport->loop_id));
1945 1946 1947
			DEBUG2(printk("scsi(%ld): Scheduling resync...\n",
			    ha->host_no));
			set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
L
Linus Torvalds 已提交
1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 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
			continue;
		}

		/* Check for matching device in port list. */
		found = 0;
		fcport = NULL;
		list_for_each_entry(fcport, &ha->fcports, list) {
			if (memcmp(new_fcport->port_name, fcport->port_name,
			    WWN_SIZE))
				continue;

			fcport->flags &= ~(FCF_FABRIC_DEVICE |
			    FCF_PERSISTENT_BOUND);
			fcport->loop_id = new_fcport->loop_id;
			fcport->port_type = new_fcport->port_type;
			fcport->d_id.b24 = new_fcport->d_id.b24;
			memcpy(fcport->node_name, new_fcport->node_name,
			    WWN_SIZE);

			found++;
			break;
		}

		if (!found) {
			/* New device, add to fcports list. */
			new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
			list_add_tail(&new_fcport->list, &ha->fcports);

			/* Allocate a new replacement fcport. */
			fcport = new_fcport;
			new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
			if (new_fcport == NULL) {
				rval = QLA_MEMORY_ALLOC_FAILED;
				goto cleanup_allocation;
			}
			new_fcport->flags &= ~FCF_FABRIC_DEVICE;
		}

		qla2x00_update_fcport(ha, fcport);

		found_devs++;
	}

cleanup_allocation:
J
Jesper Juhl 已提交
1992
	kfree(new_fcport);
L
Linus Torvalds 已提交
1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

	if (rval != QLA_SUCCESS) {
		DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
		    "rval=%x\n", ha->host_no, rval));
	}

	if (found_devs) {
		ha->device_flags |= DFLG_LOCAL_DEVICES;
		ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
	}

	return (rval);
}

static void
A
Andrew Vasquez 已提交
2008
qla2x00_probe_for_all_luns(scsi_qla_host_t *ha)
L
Linus Torvalds 已提交
2009 2010 2011
{
	fc_port_t	*fcport;

2012
	qla2x00_mark_all_devices_lost(ha, 0);
L
Linus Torvalds 已提交
2013 2014 2015 2016
 	list_for_each_entry(fcport, &ha->fcports, list) {
		if (fcport->port_type != FCT_TARGET)
			continue;

A
Andrew Vasquez 已提交
2017
		qla2x00_update_fcport(ha, fcport);
L
Linus Torvalds 已提交
2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035
	}
}

/*
 * qla2x00_update_fcport
 *	Updates device on list.
 *
 * Input:
 *	ha = adapter block pointer.
 *	fcport = port structure pointer.
 *
 * Return:
 *	0  - Success
 *  BIT_0 - error
 *
 * Context:
 *	Kernel context.
 */
2036
void
L
Linus Torvalds 已提交
2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047
qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
{
	fcport->ha = ha;
	fcport->login_retry = 0;
	fcport->port_login_retry_count = ha->port_down_retry_count *
	    PORT_RETRY_TIME;
	atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
	    PORT_RETRY_TIME);
	fcport->flags &= ~FCF_LOGIN_NEEDED;

	atomic_set(&fcport->state, FCS_ONLINE);
2048

已提交
2049 2050
	if (ha->flags.init_done)
		qla2x00_reg_remote_port(ha, fcport);
L
Linus Torvalds 已提交
2051 2052
}

已提交
2053 2054 2055 2056
void
qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport)
{
	struct fc_rport_identifiers rport_ids;
2057
	struct fc_rport *rport;
2058
	unsigned long flags;
已提交
2059

2060 2061 2062 2063
	if (fcport->drport)
		qla2x00_rport_del(fcport);
	if (fcport->rport)
		return;
已提交
2064

2065 2066
	rport_ids.node_name = wwn_to_u64(fcport->node_name);
	rport_ids.port_name = wwn_to_u64(fcport->port_name);
已提交
2067 2068
	rport_ids.port_id = fcport->d_id.b.domain << 16 |
	    fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
2069
	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
2070
	rport = fc_remote_port_add(ha->host, 0, &rport_ids);
2071 2072 2073 2074 2075
	if (!rport) {
		qla_printk(KERN_WARNING, ha,
		    "Unable to allocate fc remote port!\n");
		return;
	}
2076 2077
	spin_lock_irqsave(&fcport->rport_lock, flags);
	fcport->rport = rport;
2078
	*((fc_port_t **)rport->dd_data) = fcport;
2079 2080
	spin_unlock_irqrestore(&fcport->rport_lock, flags);

2081
	rport->supported_classes = fcport->supported_classes;
2082

已提交
2083 2084 2085 2086 2087
	rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
	if (fcport->port_type == FCT_INITIATOR)
		rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
	if (fcport->port_type == FCT_TARGET)
		rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
2088
	fc_remote_port_rolechg(rport, rport_ids.roles);
L
Linus Torvalds 已提交
2089

2090 2091
	if (rport->scsi_target_id != -1 &&
	    rport->scsi_target_id < ha->host->max_id)
2092
		fcport->os_target_id = rport->scsi_target_id;
L
Linus Torvalds 已提交
2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112
}

/*
 * qla2x00_configure_fabric
 *      Setup SNS devices with loop ID's.
 *
 * Input:
 *      ha = adapter block pointer.
 *
 * Returns:
 *      0 = success.
 *      BIT_0 = error
 */
static int
qla2x00_configure_fabric(scsi_qla_host_t *ha)
{
	int	rval, rval2;
	fc_port_t	*fcport, *fcptemp;
	uint16_t	next_loopid;
	uint16_t	mb[MAILBOX_REGISTER_COUNT];
2113
	uint16_t	loop_id;
L
Linus Torvalds 已提交
2114 2115 2116
	LIST_HEAD(new_fcports);

	/* If FL port exists, then SNS is present */
2117
	if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
2118 2119 2120 2121
		loop_id = NPH_F_PORT;
	else
		loop_id = SNS_FL_PORT;
	rval = qla2x00_get_port_name(ha, loop_id, NULL, 0);
L
Linus Torvalds 已提交
2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136
	if (rval != QLA_SUCCESS) {
		DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
		    "Port\n", ha->host_no));

		ha->device_flags &= ~SWITCH_FOUND;
		return (QLA_SUCCESS);
	}

	/* Mark devices that need re-synchronization. */
	rval2 = qla2x00_device_resync(ha);
	if (rval2 == QLA_RSCNS_HANDLED) {
		/* No point doing the scan, just continue. */
		return (QLA_SUCCESS);
	}
	do {
2137 2138 2139 2140 2141
		/* FDMI support. */
		if (ql2xfdmienable &&
		    test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags))
			qla2x00_fdmi_register(ha);

L
Linus Torvalds 已提交
2142
		/* Ensure we are logged into the SNS. */
2143
		if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
2144 2145 2146 2147
			loop_id = NPH_SNS;
		else
			loop_id = SIMPLE_NAME_SERVER;
		ha->isp_ops.fabric_login(ha, loop_id, 0xff, 0xff,
2148
		    0xfc, mb, BIT_1 | BIT_0);
L
Linus Torvalds 已提交
2149 2150 2151
		if (mb[0] != MBS_COMMAND_COMPLETE) {
			DEBUG2(qla_printk(KERN_INFO, ha,
			    "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
2152
			    "mb[2]=%x mb[6]=%x mb[7]=%x\n", loop_id,
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Linus Torvalds 已提交
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			    mb[0], mb[1], mb[2], mb[6], mb[7]));
			return (QLA_SUCCESS);
		}

		if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
			if (qla2x00_rft_id(ha)) {
				/* EMPTY */
				DEBUG2(printk("scsi(%ld): Register FC-4 "
				    "TYPE failed.\n", ha->host_no));
			}
			if (qla2x00_rff_id(ha)) {
				/* EMPTY */
				DEBUG2(printk("scsi(%ld): Register FC-4 "
				    "Features failed.\n", ha->host_no));
			}
			if (qla2x00_rnn_id(ha)) {
				/* EMPTY */
				DEBUG2(printk("scsi(%ld): Register Node Name "
				    "failed.\n", ha->host_no));
			} else if (qla2x00_rsnn_nn(ha)) {
				/* EMPTY */
				DEBUG2(printk("scsi(%ld): Register Symbolic "
				    "Node Name failed.\n", ha->host_no));
			}
		}

		rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
		if (rval != QLA_SUCCESS)
			break;

		/*
		 * Logout all previous fabric devices marked lost, except
		 * tape devices.
		 */
		list_for_each_entry(fcport, &ha->fcports, list) {
			if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
				break;

			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
				continue;

			if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
				qla2x00_mark_device_lost(ha, fcport,
2196
				    ql2xplogiabsentdevice, 0);
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				if (fcport->loop_id != FC_NO_LOOP_ID &&
				    (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
				    fcport->port_type != FCT_INITIATOR &&
				    fcport->port_type != FCT_BROADCAST) {
2201
					ha->isp_ops.fabric_logout(ha,
2202 2203 2204 2205
					    fcport->loop_id,
					    fcport->d_id.b.domain,
					    fcport->d_id.b.area,
					    fcport->d_id.b.al_pa);
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					fcport->loop_id = FC_NO_LOOP_ID;
				}
			}
		}

		/* Starting free loop ID. */
		next_loopid = ha->min_external_loopid;

		/*
		 * Scan through our port list and login entries that need to be
		 * logged in.
		 */
		list_for_each_entry(fcport, &ha->fcports, list) {
			if (atomic_read(&ha->loop_down_timer) ||
			    test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
				break;

			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
			    (fcport->flags & FCF_LOGIN_NEEDED) == 0)
				continue;

			if (fcport->loop_id == FC_NO_LOOP_ID) {
				fcport->loop_id = next_loopid;
				rval = qla2x00_find_new_loop_id(ha, fcport);
				if (rval != QLA_SUCCESS) {
					/* Ran out of IDs to use */
					break;
				}
			}
			/* Login and update database */
			qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
		}

		/* Exit if out of loop IDs. */
		if (rval != QLA_SUCCESS) {
			break;
		}

		/*
		 * Login and add the new devices to our port list.
		 */
		list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
			if (atomic_read(&ha->loop_down_timer) ||
			    test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
				break;

			/* Find a new loop ID to use. */
			fcport->loop_id = next_loopid;
			rval = qla2x00_find_new_loop_id(ha, fcport);
			if (rval != QLA_SUCCESS) {
				/* Ran out of IDs to use */
				break;
			}

			/* Remove device from the new list and add it to DB */
			list_del(&fcport->list);
			list_add_tail(&fcport->list, &ha->fcports);
2263 2264 2265

			/* Login and update database */
			qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
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		}
	} while (0);

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

	if (rval) {
		DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
		    "rval=%d\n", ha->host_no, rval));
	}

	return (rval);
}


/*
 * qla2x00_find_all_fabric_devs
 *
 * Input:
 *	ha = adapter block pointer.
 *	dev = database device entry pointer.
 *
 * Returns:
 *	0 = success.
 *
 * Context:
 *	Kernel context.
 */
static int
qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
{
	int		rval;
	uint16_t	loop_id;
	fc_port_t	*fcport, *new_fcport, *fcptemp;
	int		found;

	sw_info_t	*swl;
	int		swl_idx;
	int		first_dev, last_dev;
	port_id_t	wrap, nxt_d_id;

	rval = QLA_SUCCESS;

	/* Try GID_PT to get device list, else GAN. */
	swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC);
	if (swl == NULL) {
		/*EMPTY*/
		DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
		    "on GA_NXT\n", ha->host_no));
	} else {
		memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES);
		if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
			kfree(swl);
			swl = NULL;
		} else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
			kfree(swl);
			swl = NULL;
		} else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
			kfree(swl);
			swl = NULL;
		}
	}
	swl_idx = 0;

	/* Allocate temporary fcport for any new fcports discovered. */
	new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
	if (new_fcport == NULL) {
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		kfree(swl);
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		return (QLA_MEMORY_ALLOC_FAILED);
	}
	new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);

	/* Set start port ID scan at adapter ID. */
	first_dev = 1;
	last_dev = 0;

	/* Starting free loop ID. */
	loop_id = ha->min_external_loopid;
	for (; loop_id <= ha->last_loop_id; loop_id++) {
2348
		if (qla2x00_is_reserved_id(ha, loop_id))
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			continue;

2351
		if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
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			break;

		if (swl != NULL) {
			if (last_dev) {
				wrap.b24 = new_fcport->d_id.b24;
			} else {
				new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
				memcpy(new_fcport->node_name,
				    swl[swl_idx].node_name, WWN_SIZE);
				memcpy(new_fcport->port_name,
				    swl[swl_idx].port_name, WWN_SIZE);

				if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
					last_dev = 1;
				}
				swl_idx++;
			}
		} else {
			/* Send GA_NXT to the switch */
			rval = qla2x00_ga_nxt(ha, new_fcport);
			if (rval != QLA_SUCCESS) {
				qla_printk(KERN_WARNING, ha,
				    "SNS scan failed -- assuming zero-entry "
				    "result...\n");
				list_for_each_entry_safe(fcport, fcptemp,
				    new_fcports, list) {
					list_del(&fcport->list);
					kfree(fcport);
				}
				rval = QLA_SUCCESS;
				break;
			}
		}

		/* If wrap on switch device list, exit. */
		if (first_dev) {
			wrap.b24 = new_fcport->d_id.b24;
			first_dev = 0;
		} else if (new_fcport->d_id.b24 == wrap.b24) {
			DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
			    ha->host_no, new_fcport->d_id.b.domain,
			    new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
			break;
		}

		/* Bypass if host adapter. */
		if (new_fcport->d_id.b24 == ha->d_id.b24)
			continue;

2401 2402 2403 2404 2405 2406
		/* Bypass if same domain and area of adapter. */
		if (((new_fcport->d_id.b24 & 0xffff00) ==
		    (ha->d_id.b24 & 0xffff00)) && ha->current_topology ==
			ISP_CFG_FL)
			    continue;

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		/* Bypass reserved domain fields. */
		if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
			continue;

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

			found++;

			/*
			 * If address the same and state FCS_ONLINE, nothing
			 * changed.
			 */
			if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
			    atomic_read(&fcport->state) == FCS_ONLINE) {
				break;
			}

			/*
			 * If device was not a fabric device before.
			 */
			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
				fcport->d_id.b24 = new_fcport->d_id.b24;
				fcport->loop_id = FC_NO_LOOP_ID;
				fcport->flags |= (FCF_FABRIC_DEVICE |
				    FCF_LOGIN_NEEDED);
				fcport->flags &= ~FCF_PERSISTENT_BOUND;
				break;
			}

			/*
			 * Port ID changed or device was marked to be updated;
			 * Log it out if still logged in and mark it for
			 * relogin later.
			 */
			fcport->d_id.b24 = new_fcport->d_id.b24;
			fcport->flags |= FCF_LOGIN_NEEDED;
			if (fcport->loop_id != FC_NO_LOOP_ID &&
			    (fcport->flags & FCF_TAPE_PRESENT) == 0 &&
			    fcport->port_type != FCT_INITIATOR &&
			    fcport->port_type != FCT_BROADCAST) {
2452 2453 2454
				ha->isp_ops.fabric_logout(ha, fcport->loop_id,
				    fcport->d_id.b.domain, fcport->d_id.b.area,
				    fcport->d_id.b.al_pa);
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				fcport->loop_id = FC_NO_LOOP_ID;
			}

			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. */
		nxt_d_id.b24 = new_fcport->d_id.b24;
		new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
		if (new_fcport == NULL) {
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			kfree(swl);
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			return (QLA_MEMORY_ALLOC_FAILED);
		}
		new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
		new_fcport->d_id.b24 = nxt_d_id.b24;
	}

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	kfree(swl);
	kfree(new_fcport);
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	if (!list_empty(new_fcports))
		ha->device_flags |= DFLG_FABRIC_DEVICES;

	return (rval);
}

/*
 * qla2x00_find_new_loop_id
 *	Scan through our port list and find a new usable loop ID.
 *
 * Input:
 *	ha:	adapter state pointer.
 *	dev:	port structure pointer.
 *
 * Returns:
 *	qla2x00 local function return status code.
 *
 * Context:
 *	Kernel context.
 */
int
qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
{
	int	rval;
	int	found;
	fc_port_t *fcport;
	uint16_t first_loop_id;

	rval = QLA_SUCCESS;

	/* Save starting loop ID. */
	first_loop_id = dev->loop_id;

	for (;;) {
		/* Skip loop ID if already used by adapter. */
		if (dev->loop_id == ha->loop_id) {
			dev->loop_id++;
		}

		/* Skip reserved loop IDs. */
2521
		while (qla2x00_is_reserved_id(ha, dev->loop_id)) {
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			dev->loop_id++;
		}

		/* Reset loop ID if passed the end. */
		if (dev->loop_id > ha->last_loop_id) {
			/* first loop ID. */
			dev->loop_id = ha->min_external_loopid;
		}

		/* Check for loop ID being already in use. */
		found = 0;
		fcport = NULL;
		list_for_each_entry(fcport, &ha->fcports, list) {
			if (fcport->loop_id == dev->loop_id && fcport != dev) {
				/* ID possibly in use */
				found++;
				break;
			}
		}

		/* If not in use then it is free to use. */
		if (!found) {
			break;
		}

		/* ID in use. Try next value. */
		dev->loop_id++;

		/* If wrap around. No free ID to use. */
		if (dev->loop_id == first_loop_id) {
			dev->loop_id = FC_NO_LOOP_ID;
			rval = QLA_FUNCTION_FAILED;
			break;
		}
	}

	return (rval);
}

/*
 * qla2x00_device_resync
 *	Marks devices in the database that needs resynchronization.
 *
 * Input:
 *	ha = adapter block pointer.
 *
 * Context:
 *	Kernel context.
 */
static int
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qla2x00_device_resync(scsi_qla_host_t *ha)
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{
	int	rval;
	uint32_t mask;
	fc_port_t *fcport;
	uint32_t rscn_entry;
	uint8_t rscn_out_iter;
	uint8_t format;
	port_id_t d_id;

	rval = QLA_RSCNS_HANDLED;

	while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
	    ha->flags.rscn_queue_overflow) {

		rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
		format = MSB(MSW(rscn_entry));
		d_id.b.domain = LSB(MSW(rscn_entry));
		d_id.b.area = MSB(LSW(rscn_entry));
		d_id.b.al_pa = LSB(LSW(rscn_entry));

		DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
		    "[%02x/%02x%02x%02x].\n",
		    ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
		    d_id.b.area, d_id.b.al_pa));

		ha->rscn_out_ptr++;
		if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
			ha->rscn_out_ptr = 0;

		/* Skip duplicate entries. */
		for (rscn_out_iter = ha->rscn_out_ptr;
		    !ha->flags.rscn_queue_overflow &&
		    rscn_out_iter != ha->rscn_in_ptr;
		    rscn_out_iter = (rscn_out_iter ==
			(MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {

			if (rscn_entry != ha->rscn_queue[rscn_out_iter])
				break;

			DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
			    "entry found at [%d].\n", ha->host_no,
			    rscn_out_iter));

			ha->rscn_out_ptr = rscn_out_iter;
		}

		/* Queue overflow, set switch default case. */
		if (ha->flags.rscn_queue_overflow) {
			DEBUG(printk("scsi(%ld): device_resync: rscn "
			    "overflow.\n", ha->host_no));

			format = 3;
			ha->flags.rscn_queue_overflow = 0;
		}

		switch (format) {
		case 0:
			mask = 0xffffff;
			break;
		case 1:
			mask = 0xffff00;
			break;
		case 2:
			mask = 0xff0000;
			break;
		default:
			mask = 0x0;
			d_id.b24 = 0;
			ha->rscn_out_ptr = ha->rscn_in_ptr;
			break;
		}

		rval = QLA_SUCCESS;

		list_for_each_entry(fcport, &ha->fcports, list) {
			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
			    (fcport->d_id.b24 & mask) != d_id.b24 ||
			    fcport->port_type == FCT_BROADCAST)
				continue;

			if (atomic_read(&fcport->state) == FCS_ONLINE) {
				if (format != 3 ||
				    fcport->port_type != FCT_INITIATOR) {
2656 2657
					qla2x00_mark_device_lost(ha, fcport,
					    0, 0);
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				}
			}
			fcport->flags &= ~FCF_FARP_DONE;
		}
	}
	return (rval);
}

/*
 * qla2x00_fabric_dev_login
 *	Login fabric target device and update FC port database.
 *
 * Input:
 *	ha:		adapter state pointer.
 *	fcport:		port structure list pointer.
 *	next_loopid:	contains value of a new loop ID that can be used
 *			by the next login attempt.
 *
 * Returns:
 *	qla2x00 local function return status code.
 *
 * Context:
 *	Kernel context.
 */
static int
qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
    uint16_t *next_loopid)
{
	int	rval;
	int	retry;
2688
	uint8_t opts;
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	rval = QLA_SUCCESS;
	retry = 0;

	rval = qla2x00_fabric_login(ha, fcport, next_loopid);
	if (rval == QLA_SUCCESS) {
2695 2696 2697 2698 2699
		/* Send an ADISC to tape devices.*/
		opts = 0;
		if (fcport->flags & FCF_TAPE_PRESENT)
			opts |= BIT_1;
		rval = qla2x00_get_port_database(ha, fcport, opts);
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		if (rval != QLA_SUCCESS) {
2701 2702 2703
			ha->isp_ops.fabric_logout(ha, fcport->loop_id,
			    fcport->d_id.b.domain, fcport->d_id.b.area,
			    fcport->d_id.b.al_pa);
2704
			qla2x00_mark_device_lost(ha, fcport, 1, 0);
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		} else {
			qla2x00_update_fcport(ha, fcport);
		}
	}

	return (rval);
}

/*
 * qla2x00_fabric_login
 *	Issue fabric login command.
 *
 * Input:
 *	ha = adapter block pointer.
 *	device = pointer to FC device type structure.
 *
 * Returns:
 *      0 - Login successfully
 *      1 - Login failed
 *      2 - Initiator device
 *      3 - Fatal error
 */
int
qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
    uint16_t *next_loopid)
{
	int	rval;
	int	retry;
	uint16_t tmp_loopid;
	uint16_t mb[MAILBOX_REGISTER_COUNT];

	retry = 0;
	tmp_loopid = 0;

	for (;;) {
		DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
 		    "for port %02x%02x%02x.\n",
 		    ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
		    fcport->d_id.b.area, fcport->d_id.b.al_pa));

		/* Login fcport on switch. */
2746
		ha->isp_ops.fabric_login(ha, fcport->loop_id,
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		    fcport->d_id.b.domain, fcport->d_id.b.area,
		    fcport->d_id.b.al_pa, mb, BIT_0);
		if (mb[0] == MBS_PORT_ID_USED) {
			/*
			 * Device has another loop ID.  The firmware team
2752 2753 2754 2755
			 * recommends the driver perform an implicit login with
			 * the specified ID again. The ID we just used is save
			 * here so we return with an ID that can be tried by
			 * the next login.
L
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			 */
			retry++;
			tmp_loopid = fcport->loop_id;
			fcport->loop_id = mb[1];

			DEBUG(printk("Fabric Login: port in use - next "
 			    "loop id=0x%04x, port Id=%02x%02x%02x.\n",
			    fcport->loop_id, fcport->d_id.b.domain,
			    fcport->d_id.b.area, fcport->d_id.b.al_pa));

		} else if (mb[0] == MBS_COMMAND_COMPLETE) {
			/*
			 * Login succeeded.
			 */
			if (retry) {
				/* A retry occurred before. */
				*next_loopid = tmp_loopid;
			} else {
				/*
				 * No retry occurred before. Just increment the
				 * ID value for next login.
				 */
				*next_loopid = (fcport->loop_id + 1);
			}

			if (mb[1] & BIT_0) {
				fcport->port_type = FCT_INITIATOR;
			} else {
				fcport->port_type = FCT_TARGET;
				if (mb[1] & BIT_1) {
					fcport->flags |= FCF_TAPE_PRESENT;
				}
			}

2790 2791 2792 2793 2794
			if (mb[10] & BIT_0)
				fcport->supported_classes |= FC_COS_CLASS2;
			if (mb[10] & BIT_1)
				fcport->supported_classes |= FC_COS_CLASS3;

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			rval = QLA_SUCCESS;
			break;
		} else if (mb[0] == MBS_LOOP_ID_USED) {
			/*
			 * Loop ID already used, try next loop ID.
			 */
			fcport->loop_id++;
			rval = qla2x00_find_new_loop_id(ha, fcport);
			if (rval != QLA_SUCCESS) {
				/* Ran out of loop IDs to use */
				break;
			}
		} else if (mb[0] == MBS_COMMAND_ERROR) {
			/*
			 * Firmware possibly timed out during login. If NO
			 * retries are left to do then the device is declared
			 * dead.
			 */
			*next_loopid = fcport->loop_id;
2814 2815 2816
			ha->isp_ops.fabric_logout(ha, fcport->loop_id,
			    fcport->d_id.b.domain, fcport->d_id.b.area,
			    fcport->d_id.b.al_pa);
2817
			qla2x00_mark_device_lost(ha, fcport, 1, 0);
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			rval = 1;
			break;
		} else {
			/*
			 * unrecoverable / not handled error
			 */
			DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
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 			    "loop_id=%x jiffies=%lx.\n",
 			    __func__, ha->host_no, mb[0],
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			    fcport->d_id.b.domain, fcport->d_id.b.area,
			    fcport->d_id.b.al_pa, fcport->loop_id, jiffies));

			*next_loopid = fcport->loop_id;
2832 2833 2834
			ha->isp_ops.fabric_logout(ha, fcport->loop_id,
			    fcport->d_id.b.domain, fcport->d_id.b.area,
			    fcport->d_id.b.al_pa);
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			fcport->loop_id = FC_NO_LOOP_ID;
2836
			fcport->login_retry = 0;
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			rval = 3;
			break;
		}
	}

	return (rval);
}

/*
 * qla2x00_local_device_login
 *	Issue local device login command.
 *
 * Input:
 *	ha = adapter block pointer.
 *	loop_id = loop id of device to login to.
 *
 * Returns (Where's the #define!!!!):
 *      0 - Login successfully
 *      1 - Login failed
 *      3 - Fatal error
 */
int
2860
qla2x00_local_device_login(scsi_qla_host_t *ha, fc_port_t *fcport)
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{
	int		rval;
	uint16_t	mb[MAILBOX_REGISTER_COUNT];

	memset(mb, 0, sizeof(mb));
2866
	rval = qla2x00_login_local_device(ha, fcport, mb, BIT_0);
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	if (rval == QLA_SUCCESS) {
		/* Interrogate mailbox registers for any errors */
		if (mb[0] == MBS_COMMAND_ERROR)
			rval = 1;
		else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
			/* device not in PCB table */
			rval = 3;
	}

	return (rval);
}

/*
 *  qla2x00_loop_resync
 *      Resync with fibre channel devices.
 *
 * Input:
 *      ha = adapter block pointer.
 *
 * Returns:
 *      0 = success
 */
int
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qla2x00_loop_resync(scsi_qla_host_t *ha)
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{
	int   rval;
	uint32_t wait_time;

	rval = QLA_SUCCESS;

	atomic_set(&ha->loop_state, LOOP_UPDATE);
	clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
	if (ha->flags.online) {
		if (!(rval = qla2x00_fw_ready(ha))) {
			/* Wait at most MAX_TARGET RSCNs for a stable link. */
			wait_time = 256;
			do {
				atomic_set(&ha->loop_state, LOOP_UPDATE);

2906 2907 2908
				/* Issue a marker after FW becomes ready. */
				qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
				ha->marker_needed = 0;
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				/* Remap devices on Loop. */
				clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);

				qla2x00_configure_loop(ha);
				wait_time--;
			} while (!atomic_read(&ha->loop_down_timer) &&
				!(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
				wait_time &&
				(test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
		}
	}

	if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
		return (QLA_FUNCTION_FAILED);
	}

	if (rval) {
		DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
	}

	return (rval);
}

void
qla2x00_rescan_fcports(scsi_qla_host_t *ha)
{
	int rescan_done;
	fc_port_t *fcport;

	rescan_done = 0;
	list_for_each_entry(fcport, &ha->fcports, list) {
		if ((fcport->flags & FCF_RESCAN_NEEDED) == 0)
			continue;

		qla2x00_update_fcport(ha, fcport);
		fcport->flags &= ~FCF_RESCAN_NEEDED;

		rescan_done = 1;
	}
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	qla2x00_probe_for_all_luns(ha);
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}

2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962
void
qla2x00_update_fcports(scsi_qla_host_t *ha)
{
	fc_port_t *fcport;

	/* Go with deferred removal of rport references. */
	list_for_each_entry(fcport, &ha->fcports, list)
		if (fcport->drport)
			qla2x00_rport_del(fcport);
}

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/*
*  qla2x00_abort_isp
*      Resets ISP and aborts all outstanding commands.
*
* Input:
*      ha           = adapter block pointer.
*
* Returns:
*      0 = success
*/
int
qla2x00_abort_isp(scsi_qla_host_t *ha)
{
	unsigned long flags = 0;
	uint16_t       cnt;
	srb_t          *sp;
	uint8_t        status = 0;

	if (ha->flags.online) {
		ha->flags.online = 0;
		clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);

		qla_printk(KERN_INFO, ha,
		    "Performing ISP error recovery - ha= %p.\n", ha);
2987
		ha->isp_ops.reset_chip(ha);
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		atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
		if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
			atomic_set(&ha->loop_state, LOOP_DOWN);
2992
			qla2x00_mark_all_devices_lost(ha, 0);
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		} else {
			if (!atomic_read(&ha->loop_down_timer))
				atomic_set(&ha->loop_down_timer,
				    LOOP_DOWN_TIME);
		}

		spin_lock_irqsave(&ha->hardware_lock, flags);
		/* Requeue all commands in outstanding command list. */
		for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
			sp = ha->outstanding_cmds[cnt];
			if (sp) {
				ha->outstanding_cmds[cnt] = NULL;
				sp->flags = 0;
已提交
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				sp->cmd->result = DID_RESET << 16;
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				sp->cmd->host_scribble = (unsigned char *)NULL;
已提交
3008
				qla2x00_sp_compl(ha, sp);
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			}
		}
		spin_unlock_irqrestore(&ha->hardware_lock, flags);

3013
		ha->isp_ops.nvram_config(ha);
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		if (!qla2x00_restart_isp(ha)) {
			clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);

			if (!atomic_read(&ha->loop_down_timer)) {
				/*
				 * Issue marker command only when we are going
				 * to start the I/O .
				 */
				ha->marker_needed = 1;
			}

			ha->flags.online = 1;

3028
			ha->isp_ops.enable_intrs(ha);
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			ha->isp_abort_cnt = 0;
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			clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
		} else {	/* failed the ISP abort */
			ha->flags.online = 1;
			if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
				if (ha->isp_abort_cnt == 0) {
 					qla_printk(KERN_WARNING, ha,
					    "ISP error recovery failed - "
					    "board disabled\n");
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					/*
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					 * The next call disables the board
					 * completely.
					 */
3043
					ha->isp_ops.reset_adapter(ha);
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					ha->flags.online = 0;
					clear_bit(ISP_ABORT_RETRY,
					    &ha->dpc_flags);
					status = 0;
				} else { /* schedule another ISP abort */
					ha->isp_abort_cnt--;
					DEBUG(printk("qla%ld: ISP abort - "
3051
					    "retry remaining %d\n",
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					    ha->host_no, ha->isp_abort_cnt);)
					status = 1;
				}
			} else {
				ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
				DEBUG(printk("qla2x00(%ld): ISP error recovery "
				    "- retrying (%d) more times\n",
				    ha->host_no, ha->isp_abort_cnt);)
				set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
				status = 1;
			}
		}
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	}

	if (status) {
		qla_printk(KERN_INFO, ha,
			"qla2x00_abort_isp: **** FAILED ****\n");
	} else {
		DEBUG(printk(KERN_INFO
				"qla2x00_abort_isp(%ld): exiting.\n",
				ha->host_no);)
	}

	return(status);
}

/*
*  qla2x00_restart_isp
*      restarts the ISP after a reset
*
* Input:
*      ha = adapter block pointer.
*
* Returns:
*      0 = success
*/
static int
qla2x00_restart_isp(scsi_qla_host_t *ha)
{
	uint8_t		status = 0;
3093
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
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	unsigned long	flags = 0;
	uint32_t wait_time;

	/* If firmware needs to be loaded */
	if (qla2x00_isp_firmware(ha)) {
		ha->flags.online = 0;
3100
		if (!(status = ha->isp_ops.chip_diag(ha))) {
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			if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
				status = qla2x00_setup_chip(ha);
				goto done;
			}

			spin_lock_irqsave(&ha->hardware_lock, flags);

3108
			if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha)) {
3109 3110 3111 3112 3113 3114 3115 3116
				/*
				 * Disable SRAM, Instruction RAM and GP RAM
				 * parity.
				 */
				WRT_REG_WORD(&reg->hccr,
				    (HCCR_ENABLE_PARITY + 0x0));
				RD_REG_WORD(&reg->hccr);
			}
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3117 3118

			spin_unlock_irqrestore(&ha->hardware_lock, flags);
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3119

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			status = qla2x00_setup_chip(ha);

			spin_lock_irqsave(&ha->hardware_lock, flags);
A
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3123

3124
			if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha)) {
3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138
				/* Enable proper parity */
				if (IS_QLA2300(ha))
					/* SRAM parity */
					WRT_REG_WORD(&reg->hccr,
					    (HCCR_ENABLE_PARITY + 0x1));
				else
					/*
					 * SRAM, Instruction RAM and GP RAM
					 * parity.
					 */
					WRT_REG_WORD(&reg->hccr,
					    (HCCR_ENABLE_PARITY + 0x7));
				RD_REG_WORD(&reg->hccr);
			}
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			spin_unlock_irqrestore(&ha->hardware_lock, flags);
		}
	}

 done:
	if (!status && !(status = qla2x00_init_rings(ha))) {
		clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
		if (!(status = qla2x00_fw_ready(ha))) {
			DEBUG(printk("%s(): Start configure loop, "
3149 3150 3151 3152 3153
			    "status = %d\n", __func__, status);)

			/* Issue a marker after FW becomes ready. */
			qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);

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			ha->flags.online = 1;
			/* Wait at most MAX_TARGET RSCNs for a stable link. */
			wait_time = 256;
			do {
				clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
				qla2x00_configure_loop(ha);
				wait_time--;
			} while (!atomic_read(&ha->loop_down_timer) &&
				!(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
				wait_time &&
				(test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
		}

		/* if no cable then assume it's good */
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		if ((ha->device_flags & DFLG_NO_CABLE))
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			status = 0;

		DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
				__func__,
				status);)
	}
	return (status);
}

/*
* qla2x00_reset_adapter
*      Reset adapter.
*
* Input:
*      ha = adapter block pointer.
*/
3185
void
L
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qla2x00_reset_adapter(scsi_qla_host_t *ha)
{
	unsigned long flags = 0;
3189
	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
L
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	ha->flags.online = 0;
3192
	ha->isp_ops.disable_intrs(ha);
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	spin_lock_irqsave(&ha->hardware_lock, flags);
	WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
	WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
	RD_REG_WORD(&reg->hccr);			/* PCI Posting. */
	spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
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

void
qla24xx_reset_adapter(scsi_qla_host_t *ha)
{
	unsigned long flags = 0;
	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;

	ha->flags.online = 0;
	ha->isp_ops.disable_intrs(ha);

	spin_lock_irqsave(&ha->hardware_lock, flags);
	WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
	RD_REG_DWORD(&reg->hccr);
	WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
	RD_REG_DWORD(&reg->hccr);
	spin_unlock_irqrestore(&ha->hardware_lock, flags);
}

int
qla24xx_nvram_config(scsi_qla_host_t *ha)
{
	int   rval;
	struct init_cb_24xx *icb;
	struct nvram_24xx *nv;
	uint32_t *dptr;
	uint8_t  *dptr1, *dptr2;
	uint32_t chksum;
	uint16_t cnt;

	rval = QLA_SUCCESS;
	icb = (struct init_cb_24xx *)ha->init_cb;
	nv = (struct nvram_24xx *)ha->request_ring;

	/* Determine NVRAM starting address. */
	ha->nvram_size = sizeof(struct nvram_24xx);
	ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
3237 3238 3239
	ha->vpd_size = FA_NVRAM_VPD_SIZE;
	ha->vpd_base = FA_NVRAM_VPD0_ADDR;
	if (PCI_FUNC(ha->pdev->devfn)) {
3240
		ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
3241 3242
		ha->vpd_base = FA_NVRAM_VPD1_ADDR;
	}
3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 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 3347 3348 3349 3350

	/* Get NVRAM data and calculate checksum. */
	dptr = (uint32_t *)nv;
	ha->isp_ops.read_nvram(ha, (uint8_t *)dptr, ha->nvram_base,
	    ha->nvram_size);
	for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
		chksum += le32_to_cpu(*dptr++);

	DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
	DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
	    ha->nvram_size));

	/* Bad NVRAM data, set defaults parameters. */
	if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
	    || nv->id[3] != ' ' ||
	    nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
		/* Reset NVRAM data. */
		qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
		    "checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
		    le16_to_cpu(nv->nvram_version));
		qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
		    "invalid -- WWPN) defaults.\n");

		/*
		 * Set default initialization control block.
		 */
		memset(nv, 0, ha->nvram_size);
		nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
		nv->version = __constant_cpu_to_le16(ICB_VERSION);
		nv->frame_payload_size = __constant_cpu_to_le16(2048);
		nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
		nv->exchange_count = __constant_cpu_to_le16(0);
		nv->hard_address = __constant_cpu_to_le16(124);
		nv->port_name[0] = 0x21;
		nv->port_name[1] = 0x00 + PCI_FUNC(ha->pdev->devfn);
		nv->port_name[2] = 0x00;
		nv->port_name[3] = 0xe0;
		nv->port_name[4] = 0x8b;
		nv->port_name[5] = 0x1c;
		nv->port_name[6] = 0x55;
		nv->port_name[7] = 0x86;
		nv->node_name[0] = 0x20;
		nv->node_name[1] = 0x00;
		nv->node_name[2] = 0x00;
		nv->node_name[3] = 0xe0;
		nv->node_name[4] = 0x8b;
		nv->node_name[5] = 0x1c;
		nv->node_name[6] = 0x55;
		nv->node_name[7] = 0x86;
		nv->login_retry_count = __constant_cpu_to_le16(8);
		nv->link_down_timeout = __constant_cpu_to_le16(200);
		nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
		nv->login_timeout = __constant_cpu_to_le16(0);
		nv->firmware_options_1 =
		    __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
		nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
		nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
		nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
		nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
		nv->efi_parameters = __constant_cpu_to_le32(0);
		nv->reset_delay = 5;
		nv->max_luns_per_target = __constant_cpu_to_le16(128);
		nv->port_down_retry_count = __constant_cpu_to_le16(30);
		nv->link_down_timeout = __constant_cpu_to_le16(30);

		rval = 1;
	}

	/* Reset Initialization control block */
	memset(icb, 0, sizeof(struct init_cb_24xx));

	/* Copy 1st segment. */
	dptr1 = (uint8_t *)icb;
	dptr2 = (uint8_t *)&nv->version;
	cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
	while (cnt--)
		*dptr1++ = *dptr2++;

	icb->login_retry_count = nv->login_retry_count;
	icb->link_down_timeout = nv->link_down_timeout;

	/* Copy 2nd segment. */
	dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
	dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
	cnt = (uint8_t *)&icb->reserved_3 -
	    (uint8_t *)&icb->interrupt_delay_timer;
	while (cnt--)
		*dptr1++ = *dptr2++;

	/*
	 * Setup driver NVRAM options.
	 */
	if (memcmp(nv->model_name, BINZERO, sizeof(nv->model_name)) != 0) {
		char *st, *en;
		uint16_t index;

		strncpy(ha->model_number, nv->model_name,
		    sizeof(nv->model_name));
		st = en = ha->model_number;
		en += sizeof(nv->model_name) - 1;
		while (en > st) {
			if (*en != 0x20 && *en != 0x00)
				break;
			*en-- = '\0';
		}

		index = (ha->pdev->subsystem_device & 0xff);
		if (index < QLA_MODEL_NAMES)
3351
			ha->model_desc = qla2x00_model_name[index * 2 + 1];
3352 3353 3354
	} else
		strcpy(ha->model_number, "QLA2462");

3355 3356 3357 3358 3359 3360
	/* Use alternate WWN? */
	if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
		memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
		memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
	}

3361
	/* Prepare nodename */
3362
	if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377
		/*
		 * Firmware will apply the following mask if the nodename was
		 * not provided.
		 */
		memcpy(icb->node_name, icb->port_name, WWN_SIZE);
		icb->node_name[0] &= 0xF0;
	}

	/* Set host adapter parameters. */
	ha->flags.disable_risc_code_load = 0;
	ha->flags.enable_lip_reset = 1;
	ha->flags.enable_lip_full_login = 1;
	ha->flags.enable_target_reset = 1;
	ha->flags.enable_led_scheme = 0;

3378 3379
	ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
	    (BIT_6 | BIT_5 | BIT_4)) >> 4;
3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390

	memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
	    sizeof(ha->fw_seriallink_options24));

	/* save HBA serial number */
	ha->serial0 = icb->port_name[5];
	ha->serial1 = icb->port_name[6];
	ha->serial2 = icb->port_name[7];
	ha->node_name = icb->node_name;
	ha->port_name = icb->port_name;

3391 3392
	icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);

3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442
	ha->retry_count = le16_to_cpu(nv->login_retry_count);

	/* Set minimum login_timeout to 4 seconds. */
	if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
		nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
	if (le16_to_cpu(nv->login_timeout) < 4)
		nv->login_timeout = __constant_cpu_to_le16(4);
	ha->login_timeout = le16_to_cpu(nv->login_timeout);
	icb->login_timeout = cpu_to_le16(nv->login_timeout);

	/* Set minimum RATOV to 200 tenths of a second. */
	ha->r_a_tov = 200;

	ha->loop_reset_delay = nv->reset_delay;

	/* Link Down Timeout = 0:
	 *
	 * 	When Port Down timer expires we will start returning
	 *	I/O's to OS with "DID_NO_CONNECT".
	 *
	 * Link Down Timeout != 0:
	 *
	 *	 The driver waits for the link to come up after link down
	 *	 before returning I/Os to OS with "DID_NO_CONNECT".
	 */
	if (le16_to_cpu(nv->link_down_timeout) == 0) {
		ha->loop_down_abort_time =
		    (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
	} else {
		ha->link_down_timeout =	le16_to_cpu(nv->link_down_timeout);
		ha->loop_down_abort_time =
		    (LOOP_DOWN_TIME - ha->link_down_timeout);
	}

	/* Need enough time to try and get the port back. */
	ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
	if (qlport_down_retry)
		ha->port_down_retry_count = qlport_down_retry;

	/* Set login_retry_count */
	ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
	if (ha->port_down_retry_count ==
	    le16_to_cpu(nv->port_down_retry_count) &&
	    ha->port_down_retry_count > 3)
		ha->login_retry_count = ha->port_down_retry_count;
	else if (ha->port_down_retry_count > (int)ha->login_retry_count)
		ha->login_retry_count = ha->port_down_retry_count;
	if (ql2xloginretrycount)
		ha->login_retry_count = ql2xloginretrycount;

3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453
	/* Enable ZIO. */
	if (!ha->flags.init_done) {
		ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
		    (BIT_3 | BIT_2 | BIT_1 | BIT_0);
		ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
		    le16_to_cpu(icb->interrupt_delay_timer): 2;
	}
	icb->firmware_options_2 &= __constant_cpu_to_le32(
	    ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
	ha->flags.process_response_queue = 0;
	if (ha->zio_mode != QLA_ZIO_DISABLED) {
3454 3455
		ha->zio_mode = QLA_ZIO_MODE_6;

3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468
		DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay "
		    "(%d us).\n", ha->host_no, ha->zio_mode,
		    ha->zio_timer * 100));
		qla_printk(KERN_INFO, ha,
		    "ZIO mode %d enabled; timer delay (%d us).\n",
		    ha->zio_mode, ha->zio_timer * 100);

		icb->firmware_options_2 |= cpu_to_le32(
		    (uint32_t)ha->zio_mode);
		icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
		ha->flags.process_response_queue = 1;
	}

3469 3470 3471 3472 3473 3474 3475
	if (rval) {
		DEBUG2_3(printk(KERN_WARNING
		    "scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
	}
	return (rval);
}

3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559
int
qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr)
{
	int	rval;
	int	segments, fragment;
	uint32_t faddr;
	uint32_t *dcode, dlen;
	uint32_t risc_addr;
	uint32_t risc_size;
	uint32_t i;

	rval = QLA_SUCCESS;

	segments = FA_RISC_CODE_SEGMENTS;
	faddr = FA_RISC_CODE_ADDR;
	dcode = (uint32_t *)ha->request_ring;
	*srisc_addr = 0;

	/* Validate firmware image by checking version. */
	qla24xx_read_flash_data(ha, dcode, faddr + 4, 4);
	for (i = 0; i < 4; i++)
		dcode[i] = be32_to_cpu(dcode[i]);
	if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
	    dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
	    (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
		dcode[3] == 0)) {
		qla_printk(KERN_WARNING, ha,
		    "Unable to verify integrity of flash firmware image!\n");
		qla_printk(KERN_WARNING, ha,
		    "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
		    dcode[1], dcode[2], dcode[3]);

		return QLA_FUNCTION_FAILED;
	}

	while (segments && rval == QLA_SUCCESS) {
		/* Read segment's load information. */
		qla24xx_read_flash_data(ha, dcode, faddr, 4);

		risc_addr = be32_to_cpu(dcode[2]);
		*srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
		risc_size = be32_to_cpu(dcode[3]);

		fragment = 0;
		while (risc_size > 0 && rval == QLA_SUCCESS) {
			dlen = (uint32_t)(ha->fw_transfer_size >> 2);
			if (dlen > risc_size)
				dlen = risc_size;

			DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
			    "addr %x, number of dwords 0x%x, offset 0x%x.\n",
			    ha->host_no, risc_addr, dlen, faddr));

			qla24xx_read_flash_data(ha, dcode, faddr, dlen);
			for (i = 0; i < dlen; i++)
				dcode[i] = swab32(dcode[i]);

			rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
			    dlen);
			if (rval) {
				DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
				    "segment %d of firmware\n", ha->host_no,
				    fragment));
				qla_printk(KERN_WARNING, ha,
				    "[ERROR] Failed to load segment %d of "
				    "firmware\n", fragment);
				break;
			}

			faddr += dlen;
			risc_addr += dlen;
			risc_size -= dlen;
			fragment++;
		}

		/* Next segment. */
		segments--;
	}

	return rval;
}

#define QLA_FW_URL "ftp://ftp.qlogic.com/outgoing/linux/firmware/"

3560
int
3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572
qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
{
	int	rval;
	int	i, fragment;
	uint16_t *wcode, *fwcode;
	uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
	struct fw_blob *blob;

	/* Load firmware blob. */
	blob = qla2x00_request_firmware(ha);
	if (!blob) {
		qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3573 3574
		qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
		    "from: " QLA_FW_URL ".\n");
3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661
		return QLA_FUNCTION_FAILED;
	}

	rval = QLA_SUCCESS;

	wcode = (uint16_t *)ha->request_ring;
	*srisc_addr = 0;
	fwcode = (uint16_t *)blob->fw->data;
	fwclen = 0;

	/* Validate firmware image by checking version. */
	if (blob->fw->size < 8 * sizeof(uint16_t)) {
		qla_printk(KERN_WARNING, ha,
		    "Unable to verify integrity of firmware image (%Zd)!\n",
		    blob->fw->size);
		goto fail_fw_integrity;
	}
	for (i = 0; i < 4; i++)
		wcode[i] = be16_to_cpu(fwcode[i + 4]);
	if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
	    wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
		wcode[2] == 0 && wcode[3] == 0)) {
		qla_printk(KERN_WARNING, ha,
		    "Unable to verify integrity of firmware image!\n");
		qla_printk(KERN_WARNING, ha,
		    "Firmware data: %04x %04x %04x %04x!\n", wcode[0],
		    wcode[1], wcode[2], wcode[3]);
		goto fail_fw_integrity;
	}

	seg = blob->segs;
	while (*seg && rval == QLA_SUCCESS) {
		risc_addr = *seg;
		*srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
		risc_size = be16_to_cpu(fwcode[3]);

		/* Validate firmware image size. */
		fwclen += risc_size * sizeof(uint16_t);
		if (blob->fw->size < fwclen) {
			qla_printk(KERN_WARNING, ha,
			    "Unable to verify integrity of firmware image "
			    "(%Zd)!\n", blob->fw->size);
			goto fail_fw_integrity;
		}

		fragment = 0;
		while (risc_size > 0 && rval == QLA_SUCCESS) {
			wlen = (uint16_t)(ha->fw_transfer_size >> 1);
			if (wlen > risc_size)
				wlen = risc_size;

			DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
			    "addr %x, number of words 0x%x.\n", ha->host_no,
			    risc_addr, wlen));

			for (i = 0; i < wlen; i++)
				wcode[i] = swab16(fwcode[i]);

			rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
			    wlen);
			if (rval) {
				DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
				    "segment %d of firmware\n", ha->host_no,
				    fragment));
				qla_printk(KERN_WARNING, ha,
				    "[ERROR] Failed to load segment %d of "
				    "firmware\n", fragment);
				break;
			}

			fwcode += wlen;
			risc_addr += wlen;
			risc_size -= wlen;
			fragment++;
		}

		/* Next segment. */
		seg++;
	}
	return rval;

fail_fw_integrity:
	return QLA_FUNCTION_FAILED;
}

int
qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr)
3662 3663 3664 3665 3666 3667 3668
{
	int	rval;
	int	segments, fragment;
	uint32_t *dcode, dlen;
	uint32_t risc_addr;
	uint32_t risc_size;
	uint32_t i;
3669
	struct fw_blob *blob;
3670 3671
	uint32_t *fwcode, fwclen;

3672 3673 3674 3675
	/* Load firmware blob. */
	blob = qla2x00_request_firmware(ha);
	if (!blob) {
		qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n");
3676 3677 3678 3679 3680 3681 3682
		qla_printk(KERN_ERR, ha, "Firmware images can be retrieved "
		    "from: " QLA_FW_URL ".\n");

		/* Try to load RISC code from flash. */
		qla_printk(KERN_ERR, ha, "Attempting to load (potentially "
		    "outdated) firmware from flash.\n");
		return qla24xx_load_risc_flash(ha, srisc_addr);
3683 3684 3685 3686 3687 3688 3689
	}

	rval = QLA_SUCCESS;

	segments = FA_RISC_CODE_SEGMENTS;
	dcode = (uint32_t *)ha->request_ring;
	*srisc_addr = 0;
3690
	fwcode = (uint32_t *)blob->fw->data;
3691 3692 3693
	fwclen = 0;

	/* Validate firmware image by checking version. */
3694
	if (blob->fw->size < 8 * sizeof(uint32_t)) {
3695
		qla_printk(KERN_WARNING, ha,
3696 3697
		    "Unable to verify integrity of firmware image (%Zd)!\n",
		    blob->fw->size);
3698 3699 3700 3701 3702 3703 3704 3705 3706
		goto fail_fw_integrity;
	}
	for (i = 0; i < 4; i++)
		dcode[i] = be32_to_cpu(fwcode[i + 4]);
	if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
	    dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
	    (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
		dcode[3] == 0)) {
		qla_printk(KERN_WARNING, ha,
3707
		    "Unable to verify integrity of firmware image!\n");
3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720
		qla_printk(KERN_WARNING, ha,
		    "Firmware data: %08x %08x %08x %08x!\n", dcode[0],
		    dcode[1], dcode[2], dcode[3]);
		goto fail_fw_integrity;
	}

	while (segments && rval == QLA_SUCCESS) {
		risc_addr = be32_to_cpu(fwcode[2]);
		*srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
		risc_size = be32_to_cpu(fwcode[3]);

		/* Validate firmware image size. */
		fwclen += risc_size * sizeof(uint32_t);
3721
		if (blob->fw->size < fwclen) {
3722
			qla_printk(KERN_WARNING, ha,
3723 3724 3725
			    "Unable to verify integrity of firmware image "
			    "(%Zd)!\n", blob->fw->size);

3726 3727 3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741
			goto fail_fw_integrity;
		}

		fragment = 0;
		while (risc_size > 0 && rval == QLA_SUCCESS) {
			dlen = (uint32_t)(ha->fw_transfer_size >> 2);
			if (dlen > risc_size)
				dlen = risc_size;

			DEBUG7(printk("scsi(%ld): Loading risc segment@ risc "
			    "addr %x, number of dwords 0x%x.\n", ha->host_no,
			    risc_addr, dlen));

			for (i = 0; i < dlen; i++)
				dcode[i] = swab32(fwcode[i]);

3742 3743
			rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr,
			    dlen);
3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767
			if (rval) {
				DEBUG(printk("scsi(%ld):[ERROR] Failed to load "
				    "segment %d of firmware\n", ha->host_no,
				    fragment));
				qla_printk(KERN_WARNING, ha,
				    "[ERROR] Failed to load segment %d of "
				    "firmware\n", fragment);
				break;
			}

			fwcode += dlen;
			risc_addr += dlen;
			risc_size -= dlen;
			fragment++;
		}

		/* Next segment. */
		segments--;
	}
	return rval;

fail_fw_integrity:
	return QLA_FUNCTION_FAILED;
}