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scsi: qedf: Add fka_period SCSI host attribute to show fip keep alive period. 

Expose this information for interested applications.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Chad Dupuis 2017-05-31 06:33:53 -07:00 committed by Martin K. Petersen
parent ff34e8e84f
commit c07c54b0cb
1 changed files with 38 additions and 19 deletions
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57
drivers/scsi/qedf/qedf_attr.c
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@ -8,6 +8,25 @@
*/ */
#include "qedf.h" #include "qedf.h"
inline bool qedf_is_vport(struct qedf_ctx *qedf)
{
return qedf->lport->vport != NULL;
}
/* Get base qedf for physical port from vport */
static struct qedf_ctx *qedf_get_base_qedf(struct qedf_ctx *qedf)
{
struct fc_lport *lport;
struct fc_lport *base_lport;
if (!(qedf_is_vport(qedf)))
return NULL;
lport = qedf->lport;
base_lport = shost_priv(vport_to_shost(lport->vport));
return lport_priv(base_lport);
}
static ssize_t static ssize_t
qedf_fcoe_mac_show(struct device *dev, qedf_fcoe_mac_show(struct device *dev,
struct device_attribute *attr, char *buf) struct device_attribute *attr, char *buf)
@ -26,34 +45,34 @@ qedf_fcoe_mac_show(struct device *dev,
return scnprintf(buf, PAGE_SIZE, "%pM\n", fcoe_mac); return scnprintf(buf, PAGE_SIZE, "%pM\n", fcoe_mac);
} }
static ssize_t
qedf_fka_period_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct fc_lport *lport = shost_priv(class_to_shost(dev));
struct qedf_ctx *qedf = lport_priv(lport);
int fka_period = -1;
if (qedf_is_vport(qedf))
qedf = qedf_get_base_qedf(qedf);
if (qedf->ctlr.sel_fcf)
fka_period = qedf->ctlr.sel_fcf->fka_period;
return scnprintf(buf, PAGE_SIZE, "%d\n", fka_period);
}
static DEVICE_ATTR(fcoe_mac, S_IRUGO, qedf_fcoe_mac_show, NULL); static DEVICE_ATTR(fcoe_mac, S_IRUGO, qedf_fcoe_mac_show, NULL);
static DEVICE_ATTR(fka_period, S_IRUGO, qedf_fka_period_show, NULL);
struct device_attribute *qedf_host_attrs[] = { struct device_attribute *qedf_host_attrs[] = {
&dev_attr_fcoe_mac, &dev_attr_fcoe_mac,
&dev_attr_fka_period,
NULL, NULL,
}; };
extern const struct qed_fcoe_ops *qed_ops; extern const struct qed_fcoe_ops *qed_ops;
inline bool qedf_is_vport(struct qedf_ctx *qedf)
{
return (!(qedf->lport->vport == NULL));
}
/* Get base qedf for physical port from vport */
static struct qedf_ctx *qedf_get_base_qedf(struct qedf_ctx *qedf)
{
struct fc_lport *lport;
struct fc_lport *base_lport;
if (!(qedf_is_vport(qedf)))
return NULL;
lport = qedf->lport;
base_lport = shost_priv(vport_to_shost(lport->vport));
return (struct qedf_ctx *)(lport_priv(base_lport));
}
void qedf_capture_grc_dump(struct qedf_ctx *qedf) void qedf_capture_grc_dump(struct qedf_ctx *qedf)
{ {
struct qedf_ctx *base_qedf; struct qedf_ctx *base_qedf;