[SCSI] lpfc 8.1.11 : Add soft_wwnn sysfs attribute, rename soft_wwn_enable
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>
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 1ec9cf0..a7de0bc 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -306,6 +306,7 @@
uint32_t cfg_use_msi;
uint32_t cfg_sg_seg_cnt;
uint32_t cfg_sg_dma_buf_size;
+ uint64_t cfg_soft_wwnn;
uint64_t cfg_soft_wwpn;
uint32_t dev_loss_tmo_changed;
@@ -358,7 +359,7 @@
#define VPD_PORT 0x8 /* valid vpd port data */
#define VPD_MASK 0xf /* mask for any vpd data */
- uint8_t soft_wwpn_enable;
+ uint8_t soft_wwn_enable;
struct timer_list fcp_poll_timer;
struct timer_list els_tmofunc;
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index e2ac7ba..f247e78 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -552,10 +552,10 @@
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 @@
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 @@
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 @@
}
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 @@
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 @@
&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_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;
/*
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 1118b6d..c39564e 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -672,6 +672,8 @@
memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
sizeof (struct serv_parm));
+ if (phba->cfg_soft_wwnn)
+ u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
if (phba->cfg_soft_wwpn)
u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
memcpy((uint8_t *) & phba->fc_nodename,
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index b872519..cf9081c 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -268,6 +268,8 @@
kfree(mp);
pmb->context1 = NULL;
+ if (phba->cfg_soft_wwnn)
+ u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
if (phba->cfg_soft_wwpn)
u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
memcpy(&phba->fc_nodename, &phba->fc_sparam.nodeName,
