static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
NULL);
-static char *lpfc_soft_wwn_key = "C99G71SL8032A";
#define WWN_SZ 8
/**
* lpfc_wwn_set - Convert string to the 8 byte WWN value.
}
return 0;
}
-/**
- * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
- * @dev: class device that is converted into a Scsi_host.
- * @attr: device attribute, not used.
- * @buf: containing the string lpfc_soft_wwn_key.
- * @count: must be size of lpfc_soft_wwn_key.
- *
- * Returns:
- * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
- * length of buf indicates success
- **/
-static ssize_t
-lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct Scsi_Host *shost = class_to_shost(dev);
- struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
- unsigned int cnt = count;
-
- /*
- * We're doing a simple sanity check for soft_wwpn setting.
- * We require that the user write a specific key to enable
- * the soft_wwpn attribute to be settable. Once the attribute
- * is written, the enable key resets. If further updates are
- * desired, the key must be written again to re-enable the
- * attribute.
- *
- * The "key" is not secret - it is a hardcoded string shown
- * here. The intent is to protect against the random user or
- * application that is just writing attributes.
- */
-
- /* count may include a LF at end of string */
- if (buf[cnt-1] == '\n')
- cnt--;
-
- if ((cnt != strlen(lpfc_soft_wwn_key)) ||
- (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
- return -EINVAL;
-
- phba->soft_wwn_enable = 1;
- return count;
-}
-static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
- lpfc_soft_wwn_enable_store);
-
-/**
- * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
- * @dev: class device that is converted into a Scsi_host.
- * @attr: device attribute, not used.
- * @buf: on return contains the wwpn in hexadecimal.
- *
- * Returns: size of formatted string.
- **/
-static ssize_t
-lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct Scsi_Host *shost = class_to_shost(dev);
- struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
-
- return snprintf(buf, PAGE_SIZE, "0x%llx\n",
- (unsigned long long)phba->cfg_soft_wwpn);
-}
-
-/**
- * lpfc_soft_wwpn_store - Set the ww port name of the adapter
- * @dev class device that is converted into a Scsi_host.
- * @attr: device attribute, not used.
- * @buf: contains the wwpn in hexadecimal.
- * @count: number of wwpn bytes in buf
- *
- * Returns:
- * -EACCES hba reset not enabled, adapter over temp
- * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
- * -EIO error taking adapter offline or online
- * value of count on success
- **/
-static ssize_t
-lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct Scsi_Host *shost = class_to_shost(dev);
- struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
- struct lpfc_hba *phba = vport->phba;
- struct completion online_compl;
- int stat1 = 0, stat2 = 0;
- unsigned int cnt = count;
- u8 wwpn[WWN_SZ];
- int rc;
-
- if (!phba->cfg_enable_hba_reset)
- return -EACCES;
- spin_lock_irq(&phba->hbalock);
- if (phba->over_temp_state == HBA_OVER_TEMP) {
- spin_unlock_irq(&phba->hbalock);
- return -EACCES;
- }
- spin_unlock_irq(&phba->hbalock);
- /* count may include a LF at end of string */
- if (buf[cnt-1] == '\n')
- cnt--;
-
- if (!phba->soft_wwn_enable)
- return -EINVAL;
-
- /* lock setting wwpn, wwnn down */
- phba->soft_wwn_enable = 0;
-
- rc = lpfc_wwn_set(buf, cnt, wwpn);
- if (!rc) {
- /* not able to set wwpn, unlock it */
- phba->soft_wwn_enable = 1;
- return rc;
- }
-
- phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
- fc_host_port_name(shost) = phba->cfg_soft_wwpn;
- if (phba->cfg_soft_wwnn)
- fc_host_node_name(shost) = phba->cfg_soft_wwnn;
-
- dev_printk(KERN_NOTICE, &phba->pcidev->dev,
- "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
-
- stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
- if (stat1)
- lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
- "0463 lpfc_soft_wwpn attribute set failed to "
- "reinit adapter - %d\n", stat1);
- init_completion(&online_compl);
- rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
- LPFC_EVT_ONLINE);
- if (rc == 0)
- return -ENOMEM;
-
- wait_for_completion(&online_compl);
- if (stat2)
- lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
- "0464 lpfc_soft_wwpn attribute set failed to "
- "reinit adapter - %d\n", stat2);
- return (stat1 || stat2) ? -EIO : count;
-}
-static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,
- lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
-
-/**
- * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
- * @dev: class device that is converted into a Scsi_host.
- * @attr: device attribute, not used.
- * @buf: on return contains the wwnn in hexadecimal.
- *
- * Returns: size of formatted string.
- **/
-static ssize_t
-lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct Scsi_Host *shost = class_to_shost(dev);
- struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
- return snprintf(buf, PAGE_SIZE, "0x%llx\n",
- (unsigned long long)phba->cfg_soft_wwnn);
-}
-
-/**
- * lpfc_soft_wwnn_store - sets the ww node name of the adapter
- * @cdev: class device that is converted into a Scsi_host.
- * @buf: contains the ww node name in hexadecimal.
- * @count: number of wwnn bytes in buf.
- *
- * Returns:
- * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
- * value of count on success
- **/
-static ssize_t
-lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct Scsi_Host *shost = class_to_shost(dev);
- struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
- unsigned int cnt = count;
- u8 wwnn[WWN_SZ];
- int rc;
-
- /* count may include a LF at end of string */
- if (buf[cnt-1] == '\n')
- cnt--;
-
- if (!phba->soft_wwn_enable)
- return -EINVAL;
-
- rc = lpfc_wwn_set(buf, cnt, wwnn);
- if (!rc) {
- /* Allow wwnn to be set many times, as long as the enable
- * is set. However, once the wwpn is set, everything locks.
- */
- return rc;
- }
-
- phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
-
- dev_printk(KERN_NOTICE, &phba->pcidev->dev,
- "lpfc%d: soft_wwnn set. Value will take effect upon "
- "setting of the soft_wwpn\n", phba->brd_no);
-
- return count;
-}
-static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,
- lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
/**
* lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for
&dev_attr_lpfc_fcp_cpu_map,
&dev_attr_lpfc_fcp_io_channel,
&dev_attr_lpfc_enable_bg,
- &dev_attr_lpfc_soft_wwnn,
- &dev_attr_lpfc_soft_wwpn,
- &dev_attr_lpfc_soft_wwn_enable,
&dev_attr_lpfc_enable_hba_reset,
&dev_attr_lpfc_enable_hba_heartbeat,
&dev_attr_lpfc_EnableXLane,
else
phba->cfg_poll = lpfc_poll;
- phba->cfg_soft_wwnn = 0L;
- phba->cfg_soft_wwpn = 0L;
lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff