From: Krishna Gudipati <kgudipat@xxxxxxxxxxx>
Change details:
- Made changes to handle vport creation/deletion from sysfs.
Signed-off-by: Krishna Gudipati <kgudipat@xxxxxxxxxxx>
---
drivers/scsi/bfa/bfad_attr.c | 104 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 104 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/bfa/bfad_attr.c b/drivers/scsi/bfa/bfad_attr.c
index d97f691..70fac46 100644
--- a/drivers/scsi/bfa/bfad_attr.c
+++ b/drivers/scsi/bfa/bfad_attr.c
@@ -584,6 +584,106 @@ bfad_im_num_of_discovered_ports_show(struct device *dev,
return snprintf(buf, PAGE_SIZE, "%d\n", nrports);
}
+static int
+bfad_im_parse_wwn(const char *buf, u8 *wwn)
+{
+ unsigned int i, j;
+ memset(wwn, 0, 8);
+
+ /* Validate and store the new name */
+ for (i = 0, j = 0; i < 16; i++) {
+ if ((*buf >= '0') && (*buf <= '9'))
+ j = ((j << 4) | (*buf++ - '0'));
+ else if ((*buf >= 'a') && (*buf <= 'f'))
+ j = ((j << 4) | ((*buf++ - 'a') + 10));
+ else if ((*buf >= 'A') && (*buf <= 'F'))
+ j = ((j << 4) | ((*buf++ - 'A') + 10));
+ else
+ return -EINVAL;
+ if (i % 2) {
+ wwn[i/2] = j & 0xff;
+ j = 0;
+ }
+ }
+
+ return 0;
+}
+
+static ssize_t
+bfad_im_vport_create(struct device *cdev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct Scsi_Host *shost = class_to_shost(cdev);
+ struct bfad_im_port_s *im_port =
+ (struct bfad_im_port_s *) shost->hostdata[0];
+ struct bfad_s *bfad = im_port->bfad;
+ struct bfa_port_cfg_s port_cfg;
+ u8 wwn[8];
+ int status;
+
+ memset(&port_cfg, 0, sizeof(port_cfg));
+ status = bfad_im_parse_wwn(&buf[0], wwn);
+ if (status)
+ return status;
+ memcpy(&port_cfg.pwwn, wwn, sizeof(wwn));
+
+ status = bfad_im_parse_wwn(&buf[17], wwn);
+ if (status)
+ return status;
+ memcpy(&port_cfg.nwwn, wwn, sizeof(wwn));
+
+ port_cfg.roles = BFA_PORT_ROLE_FCP_IM;
+ status = bfad_vport_create(bfad, 0, &port_cfg);
+ if (status != BFA_STATUS_OK)
+ return -EIO;
+
+ return count;
+}
+
+static ssize_t
+bfad_im_vport_delete(struct device *cdev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct Scsi_Host *shost = class_to_shost(cdev);
+ struct bfad_im_port_s *im_port =
+ (struct bfad_im_port_s *) shost->hostdata[0];
+ struct bfad_s *bfad = im_port->bfad;
+ u8 wwn[8];
+ int status;
+ unsigned long flags;
+ struct bfa_fcs_vport_s *fcs_vport;
+ struct bfad_vport_s *bfad_vport;
+ struct completion fcomp;
+
+ status = bfad_im_parse_wwn(&buf[0], wwn);
+ if (status)
+ return status;
+
+ spin_lock_irqsave(&bfad->bfad_lock, flags);
+ fcs_vport = bfa_fcs_vport_lookup(&bfad->bfa_fcs, 0, *(wwn_t *)wwn);
+ if (fcs_vport == NULL) {
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ return -EINVAL;
+ }
+
+ bfad_vport = fcs_vport->vport_drv;
+ bfad_vport->drv_port.flags |= BFAD_PORT_DELETE;
+ bfad_vport->comp_del = &fcomp;
+ init_completion(bfad_vport->comp_del);
+
+ status = bfa_fcs_vport_delete(fcs_vport);
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+
+ wait_for_completion(bfad_vport->comp_del);
+
+ if (status != BFA_STATUS_OK)
+ return -EIO;
+
+ bfad_os_scsi_host_free(bfad, bfad_vport->drv_port.im_port);
+ kfree(bfad_vport);
+ return count;
+}
+
static DEVICE_ATTR(serial_number, S_IRUGO,
bfad_im_serial_num_show, NULL);
static DEVICE_ATTR(model, S_IRUGO, bfad_im_model_show, NULL);
@@ -605,6 +705,8 @@ static DEVICE_ATTR(number_of_ports, S_IRUGO,
static DEVICE_ATTR(driver_name, S_IRUGO, bfad_im_drv_name_show, NULL);
static DEVICE_ATTR(number_of_discovered_ports, S_IRUGO,
bfad_im_num_of_discovered_ports_show, NULL);
+static DEVICE_ATTR(vport_create, S_IWUSR, NULL, bfad_im_vport_create);
+static DEVICE_ATTR(vport_delete, S_IWUSR, NULL, bfad_im_vport_delete);
struct device_attribute *bfad_im_host_attrs[] = {
&dev_attr_serial_number,
@@ -619,6 +721,8 @@ struct device_attribute *bfad_im_host_attrs[] = {
&dev_attr_number_of_ports,
&dev_attr_driver_name,
&dev_attr_number_of_discovered_ports,
+ &dev_attr_vport_create,
+ &dev_attr_vport_delete,
NULL,
};
--
1.6.5.3
--
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