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[SCSI] lpfc 8.1.11 : Add soft_wwnn sysfs attribute, rename soft_wwn_enable

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The driver now allows both wwpn and wwnn to be set.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Smart
2006-12-02 13:35:30 -05:00
committed by James Bottomley
parent 18a3b59666
commit a12e07bc62
4 changed files with 80 additions and 11 deletions
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84
drivers/scsi/lpfc/lpfc_attr.c
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@ -552,10 +552,10 @@ static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
static char *lpfc_soft_wwpn_key = "C99G71SL8032A";
static char *lpfc_soft_wwn_key = "C99G71SL8032A";
static ssize_t
lpfc_soft_wwpn_enable_store(struct class_device *cdev, const char *buf,
lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf,
size_t count)
{
struct Scsi_Host *host = class_to_shost(cdev);
@ -579,15 +579,15 @@ lpfc_soft_wwpn_enable_store(struct class_device *cdev, const char *buf,
if (buf[cnt-1] == '\n')
cnt--;
if ((cnt != strlen(lpfc_soft_wwpn_key)) ||
(strncmp(buf, lpfc_soft_wwpn_key, strlen(lpfc_soft_wwpn_key)) != 0))
if ((cnt != strlen(lpfc_soft_wwn_key)) ||
(strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
return -EINVAL;
phba->soft_wwpn_enable = 1;
phba->soft_wwn_enable = 1;
return count;
}
static CLASS_DEVICE_ATTR(lpfc_soft_wwpn_enable, S_IWUSR, NULL,
lpfc_soft_wwpn_enable_store);
static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
lpfc_soft_wwn_enable_store);
static ssize_t
lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
@ -613,12 +613,12 @@ lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
if (buf[cnt-1] == '\n')
cnt--;
if (!phba->soft_wwpn_enable || (cnt < 16) || (cnt > 18) ||
if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
((cnt == 17) && (*buf++ != 'x')) ||
((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
return -EINVAL;
phba->soft_wwpn_enable = 0;
phba->soft_wwn_enable = 0;
memset(wwpn, 0, sizeof(wwpn));
@ -639,6 +639,8 @@ lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
}
phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
fc_host_port_name(host) = phba->cfg_soft_wwpn;
if (phba->cfg_soft_wwnn)
fc_host_node_name(host) = phba->cfg_soft_wwnn;
dev_printk(KERN_NOTICE, &phba->pcidev->dev,
"lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
@ -664,6 +666,66 @@ lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
static ssize_t
lpfc_soft_wwnn_show(struct class_device *cdev, char *buf)
{
struct Scsi_Host *host = class_to_shost(cdev);
struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
return snprintf(buf, PAGE_SIZE, "0x%llx\n",
(unsigned long long)phba->cfg_soft_wwnn);
}
static ssize_t
lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count)
{
struct Scsi_Host *host = class_to_shost(cdev);
struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
unsigned int i, j, cnt=count;
u8 wwnn[8];
/* count may include a LF at end of string */
if (buf[cnt-1] == '\n')
cnt--;
if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
((cnt == 17) && (*buf++ != 'x')) ||
((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
return -EINVAL;
/*
* Allow wwnn to be set many times, as long as the enable is set.
* However, once the wwpn is set, everything locks.
*/
memset(wwnn, 0, sizeof(wwnn));
/* Validate and store the new name */
for (i=0, j=0; i < 16; i++) {
if ((*buf >= 'a') && (*buf <= 'f'))
j = ((j << 4) | ((*buf++ -'a') + 10));
else if ((*buf >= 'A') && (*buf <= 'F'))
j = ((j << 4) | ((*buf++ -'A') + 10));
else if ((*buf >= '0') && (*buf <= '9'))
j = ((j << 4) | (*buf++ -'0'));
else
return -EINVAL;
if (i % 2) {
wwnn[i/2] = j & 0xff;
j = 0;
}
}
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 CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
static int lpfc_poll = 0;
module_param(lpfc_poll, int, 0);
@ -1009,8 +1071,9 @@ struct class_device_attribute *lpfc_host_attrs[] = {
&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_wwpn_enable,
&class_device_attr_lpfc_soft_wwn_enable,
NULL,
};
@ -1815,6 +1878,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo);
lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
phba->cfg_poll = lpfc_poll;
phba->cfg_soft_wwnn = 0L;
phba->cfg_soft_wwpn = 0L;
/*