lpfc_attr.c

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	}
	vport->cfg_restrict_login = val;
	return 0;
}
lpfc_vport_param_store(restrict_login);
static CLASS_DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
			 lpfc_restrict_login_show, lpfc_restrict_login_store);

/*
# Some disk devices have a "select ID" or "select Target" capability.
# From a protocol standpoint "select ID" usually means select the
# Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
# annex" which contains a table that maps a "select ID" (a number
# between 0 and 7F) to an ALPA.  By default, for compatibility with
# older drivers, the lpfc driver scans this table from low ALPA to high
# ALPA.
#
# Turning on the scan-down variable (on  = 1, off = 0) will
# cause the lpfc driver to use an inverted table, effectively
# scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
#
# (Note: This "select ID" functionality is a LOOP ONLY characteristic
# and will not work across a fabric. Also this parameter will take
# effect only in the case when ALPA map is not available.)
*/
LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
		  "Start scanning for devices from highest ALPA to lowest");

/*
# lpfc_topology:  link topology for init link
#            0x0  = attempt loop mode then point-to-point
#            0x01 = internal loopback mode
#            0x02 = attempt point-to-point mode only
#            0x04 = attempt loop mode only
#            0x06 = attempt point-to-point mode then loop
# Set point-to-point mode if you want to run as an N_Port.
# Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
# Default value is 0.
*/
LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");

/*
# lpfc_link_speed: Link speed selection for initializing the Fibre Channel
# connection.
#       0  = auto select (default)
#       1  = 1 Gigabaud
#       2  = 2 Gigabaud
#       4  = 4 Gigabaud
#       8  = 8 Gigabaud
# Value range is [0,8]. Default value is 0.
*/
LPFC_ATTR_R(link_speed, 0, 0, 8, "Select link speed");

/*
# lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
# Value range is [2,3]. Default value is 3.
*/
LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
		  "Select Fibre Channel class of service for FCP sequences");

/*
# lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
# is [0,1]. Default value is 0.
*/
LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
		   "Use ADISC on rediscovery to authenticate FCP devices");

/*
# lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
# range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");

/*
# lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
# cr_delay (msec) or cr_count outstanding commands. cr_delay can take
# value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
# is 0. Default value of cr_count is 1. The cr_count feature is disabled if
# cr_delay is set to 0.
*/
LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
		"interrupt response is generated");

LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
		"interrupt response is generated");

/*
# lpfc_multi_ring_support:  Determines how many rings to spread available
# cmd/rsp IOCB entries across.
# Value range is [1,2]. Default value is 1.
*/
LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
		"SLI rings to spread IOCB entries across");

/*
# lpfc_multi_ring_rctl:  If lpfc_multi_ring_support is enabled, this
# identifies what rctl value to configure the additional ring for.
# Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
*/
LPFC_ATTR_R(multi_ring_rctl, FC_UNSOL_DATA, 1,
	     255, "Identifies RCTL for additional ring configuration");

/*
# lpfc_multi_ring_type:  If lpfc_multi_ring_support is enabled, this
# identifies what type value to configure the additional ring for.
# Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
*/
LPFC_ATTR_R(multi_ring_type, FC_LLC_SNAP, 1,
	     255, "Identifies TYPE for additional ring configuration");

/*
# lpfc_fdmi_on: controls FDMI support.
#       0 = no FDMI support
#       1 = support FDMI without attribute of hostname
#       2 = support FDMI with attribute of hostname
# Value range [0,2]. Default value is 0.
*/
LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");

/*
# Specifies the maximum number of ELS cmds we can have outstanding (for
# discovery). Value range is [1,64]. Default value = 32.
*/
LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
		 "during discovery");

/*
# lpfc_max_luns: maximum allowed LUN.
# Value range is [0,65535]. Default value is 255.
# NOTE: The SCSI layer might probe all allowed LUN on some old targets.
*/
LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");

/*
# lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
# Value range is [1,255], default value is 10.
*/
LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
	     "Milliseconds driver will wait between polling FCP ring");

/*
# lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
#		support this feature
#       0  = MSI disabled (default)
#       1  = MSI enabled
# Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");



struct class_device_attribute *lpfc_hba_attrs[] = {
	&class_device_attr_info,
	&class_device_attr_serialnum,
	&class_device_attr_modeldesc,
	&class_device_attr_modelname,
	&class_device_attr_programtype,
	&class_device_attr_portnum,
	&class_device_attr_fwrev,
	&class_device_attr_hdw,
	&class_device_attr_option_rom_version,
	&class_device_attr_state,
	&class_device_attr_num_discovered_ports,
	&class_device_attr_lpfc_drvr_version,
	&class_device_attr_lpfc_log_verbose,
	&class_device_attr_lpfc_lun_queue_depth,
	&class_device_attr_lpfc_hba_queue_depth,
	&class_device_attr_lpfc_peer_port_login,
	&class_device_attr_lpfc_nodev_tmo,
	&class_device_attr_lpfc_devloss_tmo,
	&class_device_attr_lpfc_fcp_class,
	&class_device_attr_lpfc_use_adisc,
	&class_device_attr_lpfc_ack0,
	&class_device_attr_lpfc_topology,
	&class_device_attr_lpfc_scan_down,
	&class_device_attr_lpfc_link_speed,
	&class_device_attr_lpfc_cr_delay,
	&class_device_attr_lpfc_cr_count,
	&class_device_attr_lpfc_multi_ring_support,
	&class_device_attr_lpfc_multi_ring_rctl,
	&class_device_attr_lpfc_multi_ring_type,
	&class_device_attr_lpfc_fdmi_on,
	&class_device_attr_lpfc_max_luns,
	&class_device_attr_lpfc_enable_npiv,
	&class_device_attr_nport_evt_cnt,
	&class_device_attr_board_mode,
	&class_device_attr_max_vpi,
	&class_device_attr_used_vpi,
	&class_device_attr_max_rpi,
	&class_device_attr_used_rpi,
	&class_device_attr_max_xri,
	&class_device_attr_used_xri,
	&class_device_attr_npiv_info,
	&class_device_attr_issue_reset,
	&class_device_attr_lpfc_poll,
	&class_device_attr_lpfc_poll_tmo,
	&class_device_attr_lpfc_use_msi,
	&class_device_attr_lpfc_soft_wwnn,
	&class_device_attr_lpfc_soft_wwpn,
	&class_device_attr_lpfc_soft_wwn_enable,
	NULL,
};

struct class_device_attribute *lpfc_vport_attrs[] = {
	&class_device_attr_info,
	&class_device_attr_state,
	&class_device_attr_num_discovered_ports,
	&class_device_attr_lpfc_drvr_version,

	&class_device_attr_lpfc_log_verbose,
	&class_device_attr_lpfc_lun_queue_depth,
	&class_device_attr_lpfc_nodev_tmo,
	&class_device_attr_lpfc_devloss_tmo,
	&class_device_attr_lpfc_hba_queue_depth,
	&class_device_attr_lpfc_peer_port_login,
	&class_device_attr_lpfc_restrict_login,
	&class_device_attr_lpfc_fcp_class,
	&class_device_attr_lpfc_use_adisc,
	&class_device_attr_lpfc_fdmi_on,
	&class_device_attr_lpfc_max_luns,
	&class_device_attr_nport_evt_cnt,
	&class_device_attr_npiv_info,
	NULL,
};

static ssize_t
sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr,
		   char *buf, loff_t off, size_t count)
{
	size_t buf_off;
	struct class_device *cdev = container_of(kobj, struct class_device,
						 kobj);
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	if ((off + count) > FF_REG_AREA_SIZE)
		return -ERANGE;

	if (count == 0) return 0;

	if (off % 4 || count % 4 || (unsigned long)buf % 4)
		return -EINVAL;

	if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
		return -EPERM;
	}

	spin_lock_irq(&phba->hbalock);
	for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
		writel(*((uint32_t *)(buf + buf_off)),
		       phba->ctrl_regs_memmap_p + off + buf_off);

	spin_unlock_irq(&phba->hbalock);

	return count;
}

static ssize_t
sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr,
		  char *buf, loff_t off, size_t count)
{
	size_t buf_off;
	uint32_t * tmp_ptr;
	struct class_device *cdev = container_of(kobj, struct class_device,
						 kobj);
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	if (off > FF_REG_AREA_SIZE)
		return -ERANGE;

	if ((off + count) > FF_REG_AREA_SIZE)
		count = FF_REG_AREA_SIZE - off;

	if (count == 0) return 0;

	if (off % 4 || count % 4 || (unsigned long)buf % 4)
		return -EINVAL;

	spin_lock_irq(&phba->hbalock);

	for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
		tmp_ptr = (uint32_t *)(buf + buf_off);
		*tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
	}

	spin_unlock_irq(&phba->hbalock);

	return count;
}

static struct bin_attribute sysfs_ctlreg_attr = {
	.attr = {
		.name = "ctlreg",
		.mode = S_IRUSR | S_IWUSR,
	},
	.size = 256,
	.read = sysfs_ctlreg_read,
	.write = sysfs_ctlreg_write,
};


static void
sysfs_mbox_idle(struct lpfc_hba *phba)
{
	phba->sysfs_mbox.state = SMBOX_IDLE;
	phba->sysfs_mbox.offset = 0;

	if (phba->sysfs_mbox.mbox) {
		mempool_free(phba->sysfs_mbox.mbox,
			     phba->mbox_mem_pool);
		phba->sysfs_mbox.mbox = NULL;
	}
}

static ssize_t
sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
		 char *buf, loff_t off, size_t count)
{
	struct class_device *cdev = container_of(kobj, struct class_device,
						 kobj);
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	struct lpfcMboxq  *mbox = NULL;

	if ((count + off) > MAILBOX_CMD_SIZE)
		return -ERANGE;

	if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
		return -EINVAL;

	if (count == 0)
		return 0;

	if (off == 0) {
		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
		if (!mbox)
			return -ENOMEM;
		memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
	}

	spin_lock_irq(&phba->hbalock);

	if (off == 0) {
		if (phba->sysfs_mbox.mbox)
			mempool_free(mbox, phba->mbox_mem_pool);
		else
			phba->sysfs_mbox.mbox = mbox;
		phba->sysfs_mbox.state = SMBOX_WRITING;
	} else {
		if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
		    phba->sysfs_mbox.offset != off           ||
		    phba->sysfs_mbox.mbox   == NULL) {
			sysfs_mbox_idle(phba);
			spin_unlock_irq(&phba->hbalock);
			return -EAGAIN;
		}
	}

	memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
	       buf, count);

	phba->sysfs_mbox.offset = off + count;

	spin_unlock_irq(&phba->hbalock);

	return count;
}

static ssize_t
sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
		char *buf, loff_t off, size_t count)
{
	struct class_device *cdev = container_of(kobj, struct class_device,
						 kobj);
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	int rc;

	if (off > MAILBOX_CMD_SIZE)
		return -ERANGE;

	if ((count + off) > MAILBOX_CMD_SIZE)
		count = MAILBOX_CMD_SIZE - off;

	if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
		return -EINVAL;

	if (off && count == 0)
		return 0;

	spin_lock_irq(&phba->hbalock);

	if (off == 0 &&
	    phba->sysfs_mbox.state  == SMBOX_WRITING &&
	    phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {

		switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
			/* Offline only */
		case MBX_WRITE_NV:
		case MBX_INIT_LINK:
		case MBX_DOWN_LINK:
		case MBX_CONFIG_LINK:
		case MBX_CONFIG_RING:
		case MBX_RESET_RING:
		case MBX_UNREG_LOGIN:
		case MBX_CLEAR_LA:
		case MBX_DUMP_CONTEXT:
		case MBX_RUN_DIAGS:
		case MBX_RESTART:
		case MBX_FLASH_WR_ULA:
		case MBX_SET_MASK:
		case MBX_SET_SLIM:
		case MBX_SET_DEBUG:
			if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
				printk(KERN_WARNING "mbox_read:Command 0x%x "
				       "is illegal in on-line state\n",
				       phba->sysfs_mbox.mbox->mb.mbxCommand);
				sysfs_mbox_idle(phba);
				spin_unlock_irq(&phba->hbalock);
				return -EPERM;
			}
		case MBX_LOAD_SM:
		case MBX_READ_NV:
		case MBX_READ_CONFIG:
		case MBX_READ_RCONFIG:
		case MBX_READ_STATUS:
		case MBX_READ_XRI:
		case MBX_READ_REV:
		case MBX_READ_LNK_STAT:
		case MBX_DUMP_MEMORY:
		case MBX_DOWN_LOAD:
		case MBX_UPDATE_CFG:
		case MBX_KILL_BOARD:
		case MBX_LOAD_AREA:
		case MBX_LOAD_EXP_ROM:
		case MBX_BEACON:
		case MBX_DEL_LD_ENTRY:
			break;
		case MBX_READ_SPARM64: