[net-next-2.6.git] / drivers / scsi / qla2xxx / qla_attr.c

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

#include <linux/vmalloc.h>
#include <scsi/scsi_transport_fc.h>

/* SYSFS attributes --------------------------------------------------------- */

static ssize_t
qla2x00_sysfs_read_fw_dump(struct kobject *kobj, char *buf, loff_t off,
    size_t count)
{
	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
	    struct device, kobj)));

	if (ha->fw_dump_reading == 0)
		return 0;
	if (off > ha->fw_dump_buffer_len)
		return 0;
	if (off + count > ha->fw_dump_buffer_len)
		count = ha->fw_dump_buffer_len - off;

	memcpy(buf, &ha->fw_dump_buffer[off], count);

	return (count);
}

static ssize_t
qla2x00_sysfs_write_fw_dump(struct kobject *kobj, char *buf, loff_t off,
    size_t count)
{
	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
	    struct device, kobj)));
	int reading;
	uint32_t dump_size;

	if (off != 0)
		return (0);

	reading = simple_strtol(buf, NULL, 10);
	switch (reading) {
	case 0:
		if (ha->fw_dump_reading == 1) {
			qla_printk(KERN_INFO, ha,
			    "Firmware dump cleared on (%ld).\n",
			    ha->host_no);

			vfree(ha->fw_dump_buffer);
			if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha))
				free_pages((unsigned long)ha->fw_dump,
				    ha->fw_dump_order);

			ha->fw_dump_reading = 0;
			ha->fw_dump_buffer = NULL;
			ha->fw_dump = NULL;
			ha->fw_dumped = 0;
		}
		break;
	case 1:
		if ((ha->fw_dump || ha->fw_dumped) && !ha->fw_dump_reading) {
			ha->fw_dump_reading = 1;

			if (IS_QLA24XX(ha) || IS_QLA25XX(ha))
				dump_size = FW_DUMP_SIZE_24XX;
			else {
				dump_size = FW_DUMP_SIZE_1M;
				if (ha->fw_memory_size < 0x20000)
					dump_size = FW_DUMP_SIZE_128K;
				else if (ha->fw_memory_size < 0x80000)
					dump_size = FW_DUMP_SIZE_512K;
			}
			ha->fw_dump_buffer = (char *)vmalloc(dump_size);
			if (ha->fw_dump_buffer == NULL) {
				qla_printk(KERN_WARNING, ha,
				    "Unable to allocate memory for firmware "
				    "dump buffer (%d).\n", dump_size);

				ha->fw_dump_reading = 0;
				return (count);
			}
			qla_printk(KERN_INFO, ha,
			    "Firmware dump ready for read on (%ld).\n",
			    ha->host_no);
			memset(ha->fw_dump_buffer, 0, dump_size);
			ha->isp_ops.ascii_fw_dump(ha);
			ha->fw_dump_buffer_len = strlen(ha->fw_dump_buffer);
		}
		break;
	}
	return (count);
}

static struct bin_attribute sysfs_fw_dump_attr = {
	.attr = {
		.name = "fw_dump",
		.mode = S_IRUSR | S_IWUSR,
		.owner = THIS_MODULE,
	},
	.size = 0,
	.read = qla2x00_sysfs_read_fw_dump,
	.write = qla2x00_sysfs_write_fw_dump,
};

static ssize_t
qla2x00_sysfs_read_nvram(struct kobject *kobj, char *buf, loff_t off,
    size_t count)
{
	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
	    struct device, kobj)));
	unsigned long	flags;

	if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size)
		return 0;

	/* Read NVRAM. */
	spin_lock_irqsave(&ha->hardware_lock, flags);
	ha->isp_ops.read_nvram(ha, (uint8_t *)buf, ha->nvram_base,
	    ha->nvram_size);
	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	return (count);
}

static ssize_t
qla2x00_sysfs_write_nvram(struct kobject *kobj, char *buf, loff_t off,
    size_t count)
{
	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
	    struct device, kobj)));
	unsigned long	flags;
	uint16_t	cnt;

	if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size)
		return 0;

	/* Checksum NVRAM. */
	if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
		uint32_t *iter;
		uint32_t chksum;

		iter = (uint32_t *)buf;
		chksum = 0;
		for (cnt = 0; cnt < ((count >> 2) - 1); cnt++)
			chksum += le32_to_cpu(*iter++);
		chksum = ~chksum + 1;
		*iter = cpu_to_le32(chksum);
	} else {
		uint8_t *iter;
		uint8_t chksum;

		iter = (uint8_t *)buf;
		chksum = 0;
		for (cnt = 0; cnt < count - 1; cnt++)
			chksum += *iter++;
		chksum = ~chksum + 1;
		*iter = chksum;
	}

	/* Write NVRAM. */
	spin_lock_irqsave(&ha->hardware_lock, flags);
	ha->isp_ops.write_nvram(ha, (uint8_t *)buf, ha->nvram_base, count);
	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	return (count);
}

static struct bin_attribute sysfs_nvram_attr = {
	.attr = {
		.name = "nvram",
		.mode = S_IRUSR | S_IWUSR,
		.owner = THIS_MODULE,
	},
	.size = 0,
	.read = qla2x00_sysfs_read_nvram,
	.write = qla2x00_sysfs_write_nvram,
};

void
qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha)
{
	struct Scsi_Host *host = ha->host;

	sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr);
	sysfs_nvram_attr.size = ha->nvram_size;
	sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr);
}

void
qla2x00_free_sysfs_attr(scsi_qla_host_t *ha)
{
	struct Scsi_Host *host = ha->host;

	sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr);
	sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr);
}

/* Scsi_Host attributes. */

static ssize_t
qla2x00_drvr_version_show(struct class_device *cdev, char *buf)
{
	return snprintf(buf, PAGE_SIZE, "%s\n", qla2x00_version_str);
}

static ssize_t
qla2x00_fw_version_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	char fw_str[30];

	return snprintf(buf, PAGE_SIZE, "%s\n",
	    ha->isp_ops.fw_version_str(ha, fw_str));
}

static ssize_t
qla2x00_serial_num_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	uint32_t sn;

	sn = ((ha->serial0 & 0x1f) << 16) | (ha->serial2 << 8) | ha->serial1;
	return snprintf(buf, PAGE_SIZE, "%c%05d\n", 'A' + sn / 100000,
	    sn % 100000);
}

static ssize_t
qla2x00_isp_name_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	return snprintf(buf, PAGE_SIZE, "%s\n", ha->brd_info->isp_name);
}

static ssize_t
qla2x00_isp_id_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	return snprintf(buf, PAGE_SIZE, "%04x %04x %04x %04x\n",
	    ha->product_id[0], ha->product_id[1], ha->product_id[2],
	    ha->product_id[3]);
}

static ssize_t
qla2x00_model_name_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	return snprintf(buf, PAGE_SIZE, "%s\n", ha->model_number);
}

static ssize_t
qla2x00_model_desc_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	return snprintf(buf, PAGE_SIZE, "%s\n",
	    ha->model_desc ? ha->model_desc: "");
}

static ssize_t
qla2x00_pci_info_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	char pci_info[30];

	return snprintf(buf, PAGE_SIZE, "%s\n",
	    ha->isp_ops.pci_info_str(ha, pci_info));
}

static ssize_t
qla2x00_state_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	int len = 0;

	if (atomic_read(&ha->loop_state) == LOOP_DOWN ||
	    atomic_read(&ha->loop_state) == LOOP_DEAD)
		len = snprintf(buf, PAGE_SIZE, "Link Down\n");
	else if (atomic_read(&ha->loop_state) != LOOP_READY ||
	    test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
	    test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags))
		len = snprintf(buf, PAGE_SIZE, "Unknown Link State\n");
	else {
		len = snprintf(buf, PAGE_SIZE, "Link Up - ");

		switch (ha->current_topology) {
		case ISP_CFG_NL:
			len += snprintf(buf + len, PAGE_SIZE-len, "Loop\n");
			break;
		case ISP_CFG_FL:
			len += snprintf(buf + len, PAGE_SIZE-len, "FL_Port\n");
			break;
		case ISP_CFG_N:
			len += snprintf(buf + len, PAGE_SIZE-len,
			    "N_Port to N_Port\n");
			break;
		case ISP_CFG_F:
			len += snprintf(buf + len, PAGE_SIZE-len, "F_Port\n");
			break;
		default:
			len += snprintf(buf + len, PAGE_SIZE-len, "Loop\n");
			break;
		}
	}
	return len;
}

static ssize_t
qla2x00_zio_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	int len = 0;

	switch (ha->zio_mode) {
	case QLA_ZIO_MODE_5:
		len += snprintf(buf + len, PAGE_SIZE-len, "Mode 5\n");
		break;
	case QLA_ZIO_MODE_6:
		len += snprintf(buf + len, PAGE_SIZE-len, "Mode 6\n");
		break;
	case QLA_ZIO_DISABLED:
		len += snprintf(buf + len, PAGE_SIZE-len, "Disabled\n");
		break;
	}
	return len;
}

static ssize_t
qla2x00_zio_store(struct class_device *cdev, const char *buf, size_t count)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	int val = 0;
	uint16_t zio_mode;

	if (sscanf(buf, "%d", &val) != 1)
		return -EINVAL;

	switch (val) {
	case 1:
		zio_mode = QLA_ZIO_MODE_5;
		break;
	case 2:
		zio_mode = QLA_ZIO_MODE_6;
		break;
	default:
		zio_mode = QLA_ZIO_DISABLED;
		break;
	}

	/* Update per-hba values and queue a reset. */
	if (zio_mode != QLA_ZIO_DISABLED || ha->zio_mode != QLA_ZIO_DISABLED) {
		ha->zio_mode = zio_mode;
		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
	}
	return strlen(buf);
}

static ssize_t
qla2x00_zio_timer_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));

	return snprintf(buf, PAGE_SIZE, "%d us\n", ha->zio_timer * 100);
}

static ssize_t
qla2x00_zio_timer_store(struct class_device *cdev, const char *buf,
    size_t count)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	int val = 0;
	uint16_t zio_timer;

	if (sscanf(buf, "%d", &val) != 1)
		return -EINVAL;
	if (val > 25500 || val < 100)
		return -ERANGE;

	zio_timer = (uint16_t)(val / 100);
	ha->zio_timer = zio_timer;

	return strlen(buf);
}

static CLASS_DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show,
	NULL);
static CLASS_DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
static CLASS_DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
static CLASS_DEVICE_ATTR(isp_name, S_IRUGO, qla2x00_isp_name_show, NULL);
static CLASS_DEVICE_ATTR(isp_id, S_IRUGO, qla2x00_isp_id_show, NULL);
static CLASS_DEVICE_ATTR(model_name, S_IRUGO, qla2x00_model_name_show, NULL);
static CLASS_DEVICE_ATTR(model_desc, S_IRUGO, qla2x00_model_desc_show, NULL);
static CLASS_DEVICE_ATTR(pci_info, S_IRUGO, qla2x00_pci_info_show, NULL);
static CLASS_DEVICE_ATTR(state, S_IRUGO, qla2x00_state_show, NULL);
static CLASS_DEVICE_ATTR(zio, S_IRUGO | S_IWUSR, qla2x00_zio_show,
    qla2x00_zio_store);
static CLASS_DEVICE_ATTR(zio_timer, S_IRUGO | S_IWUSR, qla2x00_zio_timer_show,
    qla2x00_zio_timer_store);

struct class_device_attribute *qla2x00_host_attrs[] = {
	&class_device_attr_driver_version,
	&class_device_attr_fw_version,
	&class_device_attr_serial_num,
	&class_device_attr_isp_name,
	&class_device_attr_isp_id,
	&class_device_attr_model_name,
	&class_device_attr_model_desc,
	&class_device_attr_pci_info,
	&class_device_attr_state,
	&class_device_attr_zio,
	&class_device_attr_zio_timer,
	NULL,
};

/* Host attributes. */

static void
qla2x00_get_host_port_id(struct Scsi_Host *shost)
{
	scsi_qla_host_t *ha = to_qla_host(shost);

	fc_host_port_id(shost) = ha->d_id.b.domain << 16 |
	    ha->d_id.b.area << 8 | ha->d_id.b.al_pa;
}

static void
qla2x00_get_starget_node_name(struct scsi_target *starget)
{
	struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
	scsi_qla_host_t *ha = to_qla_host(host);
	fc_port_t *fcport;
	u64 node_name = 0;

	list_for_each_entry(fcport, &ha->fcports, list) {
		if (starget->id == fcport->os_target_id) {
			node_name = wwn_to_u64(fcport->node_name);
			break;
		}
	}

	fc_starget_node_name(starget) = node_name;
}

static void
qla2x00_get_starget_port_name(struct scsi_target *starget)
{
	struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
	scsi_qla_host_t *ha = to_qla_host(host);
	fc_port_t *fcport;
	u64 port_name = 0;

	list_for_each_entry(fcport, &ha->fcports, list) {
		if (starget->id == fcport->os_target_id) {
			port_name = wwn_to_u64(fcport->port_name);
			break;
		}
	}

	fc_starget_port_name(starget) = port_name;
}

static void
qla2x00_get_starget_port_id(struct scsi_target *starget)
{
	struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
	scsi_qla_host_t *ha = to_qla_host(host);
	fc_port_t *fcport;
	uint32_t port_id = ~0U;

	list_for_each_entry(fcport, &ha->fcports, list) {
		if (starget->id == fcport->os_target_id) {
			port_id = fcport->d_id.b.domain << 16 |
			    fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
			break;
		}
	}

	fc_starget_port_id(starget) = port_id;
}

static void
qla2x00_get_rport_loss_tmo(struct fc_rport *rport)
{
	struct Scsi_Host *host = rport_to_shost(rport);
	scsi_qla_host_t *ha = to_qla_host(host);

	rport->dev_loss_tmo = ha->port_down_retry_count + 5;
}

static void
qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
{
	struct Scsi_Host *host = rport_to_shost(rport);
	scsi_qla_host_t *ha = to_qla_host(host);

	if (timeout)
		ha->port_down_retry_count = timeout;
	else
		ha->port_down_retry_count = 1;

	rport->dev_loss_tmo = ha->port_down_retry_count + 5;
}

struct fc_function_template qla2xxx_transport_functions = {

	.show_host_node_name = 1,
	.show_host_port_name = 1,
	.show_host_supported_classes = 1,

	.get_host_port_id = qla2x00_get_host_port_id,
	.show_host_port_id = 1,

	.dd_fcrport_size = sizeof(struct fc_port *),
	.show_rport_supported_classes = 1,

	.get_starget_node_name = qla2x00_get_starget_node_name,
	.show_starget_node_name = 1,
	.get_starget_port_name = qla2x00_get_starget_port_name,
	.show_starget_port_name = 1,
	.get_starget_port_id  = qla2x00_get_starget_port_id,
	.show_starget_port_id = 1,

	.get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo,
	.set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
	.show_rport_dev_loss_tmo = 1,

};

void
qla2x00_init_host_attr(scsi_qla_host_t *ha)
{
	fc_host_node_name(ha->host) = wwn_to_u64(ha->init_cb->node_name);
	fc_host_port_name(ha->host) = wwn_to_u64(ha->init_cb->port_name);
	fc_host_supported_classes(ha->host) = FC_COS_CLASS3;
}
Commit	Line	Data
8482e118	1	/*
fa90c54f AV	2	* QLogic Fibre Channel HBA Driver
fa90c54f AV	3	* Copyright (c) 2003-2005 QLogic Corporation
8482e118	4	*
fa90c54f	5	* See LICENSE.qla2xxx for copyright and licensing details.
8482e118 AV	6	*/
	7	#include "qla_def.h"
	8
7aaef27b	9	#include <linux/vmalloc.h>
8482e118 AV	10	#include <scsi/scsi_transport_fc.h>
	11
	12	/* SYSFS attributes --------------------------------------------------------- */
	13
	14	static ssize_t
	15	qla2x00_sysfs_read_fw_dump(struct kobject kobj, char buf, loff_t off,
	16	size_t count)
	17	{
	18	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
	19	struct device, kobj)));
	20
	21	if (ha->fw_dump_reading == 0)
	22	return 0;
	23	if (off > ha->fw_dump_buffer_len)
	24	return 0;
	25	if (off + count > ha->fw_dump_buffer_len)
	26	count = ha->fw_dump_buffer_len - off;
	27
	28	memcpy(buf, &ha->fw_dump_buffer[off], count);
	29
	30	return (count);
	31	}
	32
	33	static ssize_t
	34	qla2x00_sysfs_write_fw_dump(struct kobject kobj, char buf, loff_t off,
	35	size_t count)
	36	{
	37	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
	38	struct device, kobj)));
	39	int reading;
	40	uint32_t dump_size;
	41
	42	if (off != 0)
	43	return (0);
	44
	45	reading = simple_strtol(buf, NULL, 10);
	46	switch (reading) {
	47	case 0:
	48	if (ha->fw_dump_reading == 1) {
	49	qla_printk(KERN_INFO, ha,
	50	"Firmware dump cleared on (%ld).\n",
	51	ha->host_no);
	52
	53	vfree(ha->fw_dump_buffer);
fca29703 AV	54	if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha))
	55	free_pages((unsigned long)ha->fw_dump,
	56	ha->fw_dump_order);
8482e118 AV	57
	58	ha->fw_dump_reading = 0;
	59	ha->fw_dump_buffer = NULL;
	60	ha->fw_dump = NULL;
fca29703	61	ha->fw_dumped = 0;
8482e118 AV	62	}
	63	break;
	64	case 1:
fca29703	65	if ((ha->fw_dump \|\| ha->fw_dumped) && !ha->fw_dump_reading) {
8482e118 AV	66	ha->fw_dump_reading = 1;
8482e118 AV	67
fca29703 AV	68	if (IS_QLA24XX(ha) \|\| IS_QLA25XX(ha))
	69	dump_size = FW_DUMP_SIZE_24XX;
	70	else {
	71	dump_size = FW_DUMP_SIZE_1M;
	72	if (ha->fw_memory_size < 0x20000)
	73	dump_size = FW_DUMP_SIZE_128K;
	74	else if (ha->fw_memory_size < 0x80000)
	75	dump_size = FW_DUMP_SIZE_512K;
	76	}
8482e118 AV	77	ha->fw_dump_buffer = (char *)vmalloc(dump_size);
	78	if (ha->fw_dump_buffer == NULL) {
	79	qla_printk(KERN_WARNING, ha,
	80	"Unable to allocate memory for firmware "
	81	"dump buffer (%d).\n", dump_size);
	82
	83	ha->fw_dump_reading = 0;
	84	return (count);
	85	}
	86	qla_printk(KERN_INFO, ha,
	87	"Firmware dump ready for read on (%ld).\n",
	88	ha->host_no);
	89	memset(ha->fw_dump_buffer, 0, dump_size);
abbd8870	90	ha->isp_ops.ascii_fw_dump(ha);
8482e118 AV	91	ha->fw_dump_buffer_len = strlen(ha->fw_dump_buffer);
	92	}
	93	break;
	94	}
	95	return (count);
	96	}
	97
	98	static struct bin_attribute sysfs_fw_dump_attr = {
	99	.attr = {
	100	.name = "fw_dump",
	101	.mode = S_IRUSR \| S_IWUSR,
	102	.owner = THIS_MODULE,
	103	},
	104	.size = 0,
	105	.read = qla2x00_sysfs_read_fw_dump,
	106	.write = qla2x00_sysfs_write_fw_dump,
	107	};
	108
	109	static ssize_t
	110	qla2x00_sysfs_read_nvram(struct kobject kobj, char buf, loff_t off,
	111	size_t count)
	112	{
	113	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
	114	struct device, kobj)));
8482e118	115	unsigned long flags;
8482e118	116
459c5378	117	if (!capable(CAP_SYS_ADMIN) \|\| off != 0 \|\| count != ha->nvram_size)
8482e118 AV	118	return 0;
	119
	120	/* Read NVRAM. */
	121	spin_lock_irqsave(&ha->hardware_lock, flags);
459c5378 AV	122	ha->isp_ops.read_nvram(ha, (uint8_t *)buf, ha->nvram_base,
459c5378 AV	123	ha->nvram_size);
8482e118 AV	124	spin_unlock_irqrestore(&ha->hardware_lock, flags);
	125
	126	return (count);
	127	}
	128
	129	static ssize_t
	130	qla2x00_sysfs_write_nvram(struct kobject kobj, char buf, loff_t off,
	131	size_t count)
	132	{
	133	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
	134	struct device, kobj)));
8482e118 AV	135	unsigned long flags;
8482e118 AV	136	uint16_t cnt;
8482e118	137
459c5378	138	if (!capable(CAP_SYS_ADMIN) \|\| off != 0 \|\| count != ha->nvram_size)
8482e118 AV	139	return 0;
	140
	141	/* Checksum NVRAM. */
459c5378 AV	142	if (IS_QLA24XX(ha) \|\| IS_QLA25XX(ha)) {
	143	uint32_t *iter;
	144	uint32_t chksum;
	145
	146	iter = (uint32_t *)buf;
	147	chksum = 0;
	148	for (cnt = 0; cnt < ((count >> 2) - 1); cnt++)
	149	chksum += le32_to_cpu(*iter++);
	150	chksum = ~chksum + 1;
	151	*iter = cpu_to_le32(chksum);
	152	} else {
	153	uint8_t *iter;
	154	uint8_t chksum;
	155
	156	iter = (uint8_t *)buf;
	157	chksum = 0;
	158	for (cnt = 0; cnt < count - 1; cnt++)
	159	chksum += *iter++;
	160	chksum = ~chksum + 1;
	161	*iter = chksum;
	162	}
8482e118 AV	163
	164	/* Write NVRAM. */
	165	spin_lock_irqsave(&ha->hardware_lock, flags);
459c5378	166	ha->isp_ops.write_nvram(ha, (uint8_t *)buf, ha->nvram_base, count);
8482e118 AV	167	spin_unlock_irqrestore(&ha->hardware_lock, flags);
	168
	169	return (count);
	170	}
	171
	172	static struct bin_attribute sysfs_nvram_attr = {
	173	.attr = {
	174	.name = "nvram",
	175	.mode = S_IRUSR \| S_IWUSR,
	176	.owner = THIS_MODULE,
	177	},
459c5378	178	.size = 0,
8482e118 AV	179	.read = qla2x00_sysfs_read_nvram,
	180	.write = qla2x00_sysfs_write_nvram,
	181	};
	182
	183	void
	184	qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha)
	185	{
	186	struct Scsi_Host *host = ha->host;
	187
	188	sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr);
459c5378	189	sysfs_nvram_attr.size = ha->nvram_size;
8482e118 AV	190	sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr);
	191	}
	192
	193	void
	194	qla2x00_free_sysfs_attr(scsi_qla_host_t *ha)
	195	{
	196	struct Scsi_Host *host = ha->host;
	197
	198	sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr);
	199	sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr);
	200	}
	201
afb046e2 AV	202	/* Scsi_Host attributes. */
	203
	204	static ssize_t
	205	qla2x00_drvr_version_show(struct class_device cdev, char buf)
	206	{
	207	return snprintf(buf, PAGE_SIZE, "%s\n", qla2x00_version_str);
	208	}
	209
	210	static ssize_t
	211	qla2x00_fw_version_show(struct class_device cdev, char buf)
	212	{
	213	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	214	char fw_str[30];
	215
	216	return snprintf(buf, PAGE_SIZE, "%s\n",
	217	ha->isp_ops.fw_version_str(ha, fw_str));
	218	}
	219
	220	static ssize_t
	221	qla2x00_serial_num_show(struct class_device cdev, char buf)
	222	{
	223	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	224	uint32_t sn;
	225
	226	sn = ((ha->serial0 & 0x1f) << 16) \| (ha->serial2 << 8) \| ha->serial1;
	227	return snprintf(buf, PAGE_SIZE, "%c%05d\n", 'A' + sn / 100000,
	228	sn % 100000);
	229	}
	230
	231	static ssize_t
	232	qla2x00_isp_name_show(struct class_device cdev, char buf)
	233	{
	234	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	235	return snprintf(buf, PAGE_SIZE, "%s\n", ha->brd_info->isp_name);
	236	}
	237
	238	static ssize_t
	239	qla2x00_isp_id_show(struct class_device cdev, char buf)
	240	{
	241	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	242	return snprintf(buf, PAGE_SIZE, "%04x %04x %04x %04x\n",
	243	ha->product_id[0], ha->product_id[1], ha->product_id[2],
	244	ha->product_id[3]);
	245	}
	246
	247	static ssize_t
	248	qla2x00_model_name_show(struct class_device cdev, char buf)
	249	{
	250	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	251	return snprintf(buf, PAGE_SIZE, "%s\n", ha->model_number);
	252	}
	253
	254	static ssize_t
	255	qla2x00_model_desc_show(struct class_device cdev, char buf)
	256	{
	257	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	258	return snprintf(buf, PAGE_SIZE, "%s\n",
	259	ha->model_desc ? ha->model_desc: "");
	260	}
	261
	262	static ssize_t
	263	qla2x00_pci_info_show(struct class_device cdev, char buf)
	264	{
	265	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
266	char pci_info[30];
267
268	return snprintf(buf, PAGE_SIZE, "%s\n",
269	ha->isp_ops.pci_info_str(ha, pci_info));
270	}
271
272	static ssize_t
273	qla2x00_state_show(struct class_device cdev, char buf)
274	{
275	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
276	int len = 0;
277
278	if (atomic_read(&ha->loop_state) == LOOP_DOWN \|\|
279	atomic_read(&ha->loop_state) == LOOP_DEAD)
280	len = snprintf(buf, PAGE_SIZE, "Link Down\n");
281	else if (atomic_read(&ha->loop_state) != LOOP_READY \|\|
282	test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) \|\|
283	test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags))
284	len = snprintf(buf, PAGE_SIZE, "Unknown Link State\n");
285	else {
286	len = snprintf(buf, PAGE_SIZE, "Link Up - ");
287
288	switch (ha->current_topology) {
289	case ISP_CFG_NL:
290	len += snprintf(buf + len, PAGE_SIZE-len, "Loop\n");
291	break;
292	case ISP_CFG_FL:
293	len += snprintf(buf + len, PAGE_SIZE-len, "FL_Port\n");
294	break;
295	case ISP_CFG_N:
296	len += snprintf(buf + len, PAGE_SIZE-len,
297	"N_Port to N_Port\n");
298	break;
299	case ISP_CFG_F:
300	len += snprintf(buf + len, PAGE_SIZE-len, "F_Port\n");
301	break;
302	default:
303	len += snprintf(buf + len, PAGE_SIZE-len, "Loop\n");
304	break;
305	}
306	}
307	return len;
308	}
309
4fdfefe5 AV	310	static ssize_t
	311	qla2x00_zio_show(struct class_device cdev, char buf)
	312	{
	313	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	314	int len = 0;
	315
	316	switch (ha->zio_mode) {
	317	case QLA_ZIO_MODE_5:
	318	len += snprintf(buf + len, PAGE_SIZE-len, "Mode 5\n");
	319	break;
	320	case QLA_ZIO_MODE_6:
	321	len += snprintf(buf + len, PAGE_SIZE-len, "Mode 6\n");
	322	break;
	323	case QLA_ZIO_DISABLED:
	324	len += snprintf(buf + len, PAGE_SIZE-len, "Disabled\n");
	325	break;
	326	}
	327	return len;
	328	}
	329
	330	static ssize_t
	331	qla2x00_zio_store(struct class_device cdev, const char buf, size_t count)
	332	{
	333	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	334	int val = 0;
	335	uint16_t zio_mode;
	336
	337	if (sscanf(buf, "%d", &val) != 1)
	338	return -EINVAL;
	339
	340	switch (val) {
	341	case 1:
	342	zio_mode = QLA_ZIO_MODE_5;
	343	break;
	344	case 2:
	345	zio_mode = QLA_ZIO_MODE_6;
	346	break;
	347	default:
	348	zio_mode = QLA_ZIO_DISABLED;
	349	break;
	350	}
	351
	352	/* Update per-hba values and queue a reset. */
	353	if (zio_mode != QLA_ZIO_DISABLED \|\| ha->zio_mode != QLA_ZIO_DISABLED) {
	354	ha->zio_mode = zio_mode;
	355	set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
	356	}
	357	return strlen(buf);
	358	}
	359
	360	static ssize_t
	361	qla2x00_zio_timer_show(struct class_device cdev, char buf)
	362	{
	363	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	364
	365	return snprintf(buf, PAGE_SIZE, "%d us\n", ha->zio_timer * 100);
	366	}
	367
	368	static ssize_t
	369	qla2x00_zio_timer_store(struct class_device cdev, const char buf,
	370	size_t count)
	371	{
	372	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	373	int val = 0;
374	uint16_t zio_timer;
375
376	if (sscanf(buf, "%d", &val) != 1)
377	return -EINVAL;
378	if (val > 25500 \|\| val < 100)
379	return -ERANGE;
380
381	zio_timer = (uint16_t)(val / 100);
382	ha->zio_timer = zio_timer;
383
384	return strlen(buf);
385	}
386
afb046e2 AV	387	static CLASS_DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show,
	388	NULL);
	389	static CLASS_DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
	390	static CLASS_DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
	391	static CLASS_DEVICE_ATTR(isp_name, S_IRUGO, qla2x00_isp_name_show, NULL);
	392	static CLASS_DEVICE_ATTR(isp_id, S_IRUGO, qla2x00_isp_id_show, NULL);
	393	static CLASS_DEVICE_ATTR(model_name, S_IRUGO, qla2x00_model_name_show, NULL);
	394	static CLASS_DEVICE_ATTR(model_desc, S_IRUGO, qla2x00_model_desc_show, NULL);
	395	static CLASS_DEVICE_ATTR(pci_info, S_IRUGO, qla2x00_pci_info_show, NULL);
	396	static CLASS_DEVICE_ATTR(state, S_IRUGO, qla2x00_state_show, NULL);
4fdfefe5 AV	397	static CLASS_DEVICE_ATTR(zio, S_IRUGO \| S_IWUSR, qla2x00_zio_show,
	398	qla2x00_zio_store);
	399	static CLASS_DEVICE_ATTR(zio_timer, S_IRUGO \| S_IWUSR, qla2x00_zio_timer_show,
	400	qla2x00_zio_timer_store);
afb046e2 AV	401
	402	struct class_device_attribute *qla2x00_host_attrs[] = {
	403	&class_device_attr_driver_version,
	404	&class_device_attr_fw_version,
	405	&class_device_attr_serial_num,
	406	&class_device_attr_isp_name,
	407	&class_device_attr_isp_id,
	408	&class_device_attr_model_name,
	409	&class_device_attr_model_desc,
	410	&class_device_attr_pci_info,
	411	&class_device_attr_state,
4fdfefe5 AV	412	&class_device_attr_zio,
4fdfefe5 AV	413	&class_device_attr_zio_timer,
afb046e2 AV	414	NULL,
	415	};
	416
8482e118 AV	417	/* Host attributes. */
	418
	419	static void
	420	qla2x00_get_host_port_id(struct Scsi_Host *shost)
	421	{
	422	scsi_qla_host_t *ha = to_qla_host(shost);
	423
	424	fc_host_port_id(shost) = ha->d_id.b.domain << 16 \|
	425	ha->d_id.b.area << 8 \| ha->d_id.b.al_pa;
	426	}
	427
	428	static void
	429	qla2x00_get_starget_node_name(struct scsi_target *starget)
	430	{
	431	struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
	432	scsi_qla_host_t *ha = to_qla_host(host);
bdf79621	433	fc_port_t *fcport;
f8b02a85	434	u64 node_name = 0;
8482e118	435
bdf79621 AV	436	list_for_each_entry(fcport, &ha->fcports, list) {
bdf79621 AV	437	if (starget->id == fcport->os_target_id) {
f8b02a85	438	node_name = wwn_to_u64(fcport->node_name);
bdf79621 AV	439	break;
	440	}
	441	}
	442
f8b02a85	443	fc_starget_node_name(starget) = node_name;
8482e118 AV	444	}
	445
	446	static void
	447	qla2x00_get_starget_port_name(struct scsi_target *starget)
	448	{
	449	struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
	450	scsi_qla_host_t *ha = to_qla_host(host);
bdf79621	451	fc_port_t *fcport;
f8b02a85	452	u64 port_name = 0;
8482e118	453
bdf79621 AV	454	list_for_each_entry(fcport, &ha->fcports, list) {
bdf79621 AV	455	if (starget->id == fcport->os_target_id) {
f8b02a85	456	port_name = wwn_to_u64(fcport->port_name);
bdf79621 AV	457	break;
	458	}
	459	}
	460
f8b02a85	461	fc_starget_port_name(starget) = port_name;
8482e118 AV	462	}
	463
	464	static void
	465	qla2x00_get_starget_port_id(struct scsi_target *starget)
	466	{
	467	struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
	468	scsi_qla_host_t *ha = to_qla_host(host);
bdf79621 AV	469	fc_port_t *fcport;
	470	uint32_t port_id = ~0U;
	471
	472	list_for_each_entry(fcport, &ha->fcports, list) {
	473	if (starget->id == fcport->os_target_id) {
	474	port_id = fcport->d_id.b.domain << 16 \|
	475	fcport->d_id.b.area << 8 \| fcport->d_id.b.al_pa;
	476	break;
	477	}
	478	}
8482e118	479
8482e118 AV	480	fc_starget_port_id(starget) = port_id;
	481	}
	482
	483	static void
	484	qla2x00_get_rport_loss_tmo(struct fc_rport *rport)
	485	{
bdf79621 AV	486	struct Scsi_Host *host = rport_to_shost(rport);
bdf79621 AV	487	scsi_qla_host_t *ha = to_qla_host(host);
8482e118 AV	488
	489	rport->dev_loss_tmo = ha->port_down_retry_count + 5;
	490	}
	491
	492	static void
	493	qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
	494	{
bdf79621 AV	495	struct Scsi_Host *host = rport_to_shost(rport);
bdf79621 AV	496	scsi_qla_host_t *ha = to_qla_host(host);
8482e118 AV	497
	498	if (timeout)
	499	ha->port_down_retry_count = timeout;
	500	else
	501	ha->port_down_retry_count = 1;
	502
	503	rport->dev_loss_tmo = ha->port_down_retry_count + 5;
	504	}
	505
1c97a12a	506	struct fc_function_template qla2xxx_transport_functions = {
8482e118 AV	507
	508	.show_host_node_name = 1,
	509	.show_host_port_name = 1,
ad3e0eda AV	510	.show_host_supported_classes = 1,
ad3e0eda AV	511
8482e118 AV	512	.get_host_port_id = qla2x00_get_host_port_id,
	513	.show_host_port_id = 1,
	514
bdf79621	515	.dd_fcrport_size = sizeof(struct fc_port *),
ad3e0eda	516	.show_rport_supported_classes = 1,
8482e118 AV	517
	518	.get_starget_node_name = qla2x00_get_starget_node_name,
	519	.show_starget_node_name = 1,
	520	.get_starget_port_name = qla2x00_get_starget_port_name,
	521	.show_starget_port_name = 1,
	522	.get_starget_port_id = qla2x00_get_starget_port_id,
	523	.show_starget_port_id = 1,
	524
	525	.get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo,
	526	.set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
	527	.show_rport_dev_loss_tmo = 1,
	528
	529	};
	530
8482e118 AV	531	void
	532	qla2x00_init_host_attr(scsi_qla_host_t *ha)
	533	{
f8b02a85 AV	534	fc_host_node_name(ha->host) = wwn_to_u64(ha->init_cb->node_name);
f8b02a85 AV	535	fc_host_port_name(ha->host) = wwn_to_u64(ha->init_cb->port_name);
ad3e0eda	536	fc_host_supported_classes(ha->host) = FC_COS_CLASS3;
8482e118	537	}