lpfc_attr.c

来自「linux 内核源代码」· C语言 代码 · 共 2,217 行 · 第 1/5 页

	 * prevent udev from issuing mailbox commands until the port is
	 * configured.
	 */
	if (phba->link_state < LPFC_LINK_DOWN ||
	    !phba->mbox_mem_pool ||
	    (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
		return 0;

	if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
		return 0;

	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmboxq)
		return 0;
	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));

	pmb = &pmboxq->mb;
	pmb->mbxCommand = MBX_READ_CONFIG;
	pmb->mbxOwner = OWN_HOST;
	pmboxq->context1 = NULL;

	if ((phba->pport->fc_flag & FC_OFFLINE_MODE) ||
		(!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
		rc = MBX_NOT_FINISHED;
	else
		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);

	if (rc != MBX_SUCCESS) {
		if (rc != MBX_TIMEOUT)
			mempool_free(pmboxq, phba->mbox_mem_pool);
		return 0;
	}

	if (mrpi)
		*mrpi = pmb->un.varRdConfig.max_rpi;
	if (arpi)
		*arpi = pmb->un.varRdConfig.avail_rpi;
	if (mxri)
		*mxri = pmb->un.varRdConfig.max_xri;
	if (axri)
		*axri = pmb->un.varRdConfig.avail_xri;
	if (mvpi)
		*mvpi = pmb->un.varRdConfig.max_vpi;
	if (avpi)
		*avpi = pmb->un.varRdConfig.avail_vpi;

	mempool_free(pmboxq, phba->mbox_mem_pool);
	return 1;
}

static ssize_t
lpfc_max_rpi_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt;

	if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

static ssize_t
lpfc_used_rpi_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt, acnt;

	if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

static ssize_t
lpfc_max_xri_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt;

	if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

static ssize_t
lpfc_used_xri_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt, acnt;

	if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

static ssize_t
lpfc_max_vpi_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt;

	if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

static ssize_t
lpfc_used_vpi_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t cnt, acnt;

	if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
	return snprintf(buf, PAGE_SIZE, "Unknown\n");
}

static ssize_t
lpfc_npiv_info_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	if (!(phba->max_vpi))
		return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
	if (vport->port_type == LPFC_PHYSICAL_PORT)
		return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
	return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
}

static ssize_t
lpfc_poll_show(struct class_device *cdev, char *buf)
{
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
}

static ssize_t
lpfc_poll_store(struct class_device *cdev, const char *buf,
		size_t count)
{
	struct Scsi_Host  *shost = class_to_shost(cdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
	uint32_t creg_val;
	uint32_t old_val;
	int val=0;

	if (!isdigit(buf[0]))
		return -EINVAL;

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

	if ((val & 0x3) != val)
		return -EINVAL;

	spin_lock_irq(&phba->hbalock);

	old_val = phba->cfg_poll;

	if (val & ENABLE_FCP_RING_POLLING) {
		if ((val & DISABLE_FCP_RING_INT) &&
		    !(old_val & DISABLE_FCP_RING_INT)) {
			creg_val = readl(phba->HCregaddr);
			creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
			writel(creg_val, phba->HCregaddr);
			readl(phba->HCregaddr); /* flush */

			lpfc_poll_start_timer(phba);
		}
	} else if (val != 0x0) {
		spin_unlock_irq(&phba->hbalock);
		return -EINVAL;
	}

	if (!(val & DISABLE_FCP_RING_INT) &&
	    (old_val & DISABLE_FCP_RING_INT))
	{
		spin_unlock_irq(&phba->hbalock);
		del_timer(&phba->fcp_poll_timer);
		spin_lock_irq(&phba->hbalock);
		creg_val = readl(phba->HCregaddr);
		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
		writel(creg_val, phba->HCregaddr);
		readl(phba->HCregaddr); /* flush */
	}

	phba->cfg_poll = val;

	spin_unlock_irq(&phba->hbalock);

	return strlen(buf);
}

#define lpfc_param_show(attr)	\
static ssize_t \
lpfc_##attr##_show(struct class_device *cdev, char *buf) \
{ \
	struct Scsi_Host  *shost = class_to_shost(cdev);\
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
	struct lpfc_hba   *phba = vport->phba;\
	int val = 0;\
	val = phba->cfg_##attr;\
	return snprintf(buf, PAGE_SIZE, "%d\n",\
			phba->cfg_##attr);\
}

#define lpfc_param_hex_show(attr)	\
static ssize_t \
lpfc_##attr##_show(struct class_device *cdev, char *buf) \
{ \
	struct Scsi_Host  *shost = class_to_shost(cdev);\
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
	struct lpfc_hba   *phba = vport->phba;\
	int val = 0;\
	val = phba->cfg_##attr;\
	return snprintf(buf, PAGE_SIZE, "%#x\n",\
			phba->cfg_##attr);\
}

#define lpfc_param_init(attr, default, minval, maxval)	\
static int \
lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
{ \
	if (val >= minval && val <= maxval) {\
		phba->cfg_##attr = val;\
		return 0;\
	}\
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
			"0449 lpfc_"#attr" attribute cannot be set to %d, "\
			"allowed range is ["#minval", "#maxval"]\n", val); \
	phba->cfg_##attr = default;\
	return -EINVAL;\
}

#define lpfc_param_set(attr, default, minval, maxval)	\
static int \
lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
{ \
	if (val >= minval && val <= maxval) {\
		phba->cfg_##attr = val;\
		return 0;\
	}\
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
			"0450 lpfc_"#attr" attribute cannot be set to %d, "\
			"allowed range is ["#minval", "#maxval"]\n", val); \
	return -EINVAL;\
}

#define lpfc_param_store(attr)	\
static ssize_t \
lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
{ \
	struct Scsi_Host  *shost = class_to_shost(cdev);\
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
	struct lpfc_hba   *phba = vport->phba;\
	int val=0;\
	if (!isdigit(buf[0]))\
		return -EINVAL;\
	if (sscanf(buf, "%i", &val) != 1)\
		return -EINVAL;\
	if (lpfc_##attr##_set(phba, val) == 0) \
		return strlen(buf);\
	else \
		return -EINVAL;\
}

#define lpfc_vport_param_show(attr)	\
static ssize_t \
lpfc_##attr##_show(struct class_device *cdev, char *buf) \
{ \
	struct Scsi_Host  *shost = class_to_shost(cdev);\
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
	int val = 0;\
	val = vport->cfg_##attr;\
	return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
}

#define lpfc_vport_param_hex_show(attr)	\
static ssize_t \
lpfc_##attr##_show(struct class_device *cdev, char *buf) \
{ \
	struct Scsi_Host  *shost = class_to_shost(cdev);\
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
	int val = 0;\
	val = vport->cfg_##attr;\
	return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
}

#define lpfc_vport_param_init(attr, default, minval, maxval)	\
static int \
lpfc_##attr##_init(struct lpfc_vport *vport, int val) \
{ \
	if (val >= minval && val <= maxval) {\
		vport->cfg_##attr = val;\
		return 0;\
	}\
	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
			 "0449 lpfc_"#attr" attribute cannot be set to %d, "\
			 "allowed range is ["#minval", "#maxval"]\n", val); \
	vport->cfg_##attr = default;\
	return -EINVAL;\
}

#define lpfc_vport_param_set(attr, default, minval, maxval)	\
static int \
lpfc_##attr##_set(struct lpfc_vport *vport, int val) \
{ \
	if (val >= minval && val <= maxval) {\
		vport->cfg_##attr = val;\
		return 0;\
	}\
	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
			 "0450 lpfc_"#attr" attribute cannot be set to %d, "\
			 "allowed range is ["#minval", "#maxval"]\n", val); \
	return -EINVAL;\
}

#define lpfc_vport_param_store(attr)	\
static ssize_t \
lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \
{ \
	struct Scsi_Host  *shost = class_to_shost(cdev);\
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
	int val=0;\
	if (!isdigit(buf[0]))\
		return -EINVAL;\
	if (sscanf(buf, "%i", &val) != 1)\
		return -EINVAL;\
	if (lpfc_##attr##_set(vport, val) == 0) \
		return strlen(buf);\
	else \
		return -EINVAL;\
}


#define LPFC_ATTR(name, defval, minval, maxval, desc) \
static int lpfc_##name = defval;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_init(name, defval, minval, maxval)

#define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
static int lpfc_##name = defval;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)

#define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
static int lpfc_##name = defval;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
lpfc_param_set(name, defval, minval, maxval)\
lpfc_param_store(name)\
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
			 lpfc_##name##_show, lpfc_##name##_store)

#define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
static int lpfc_##name = defval;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_hex_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)

#define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
static int lpfc_##name = defval;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_hex_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
lpfc_param_set(name, defval, minval, maxval)\
lpfc_param_store(name)\
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
			 lpfc_##name##_show, lpfc_##name##_store)

#define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
static int lpfc_##name = defval;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_init(name, defval, minval, maxval)

#define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
static int lpfc_##name = defval;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)

#define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
static int lpfc_##name = defval;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
lpfc_vport_param_set(name, defval, minval, maxval)\
lpfc_vport_param_store(name)\
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
			 lpfc_##name##_show, lpfc_##name##_store)

#define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
static int lpfc_##name = defval;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_hex_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)

#define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
static int lpfc_##name = defval;\
module_param(lpfc_##name, int, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_hex_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
lpfc_vport_param_set(name, defval, minval, maxval)\
lpfc_vport_param_store(name)\
static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
			 lpfc_##name##_show, lpfc_##name##_store)

static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);