drivers/scsi/qedi/qedi_sysfs.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * QLogic iSCSI Offload Driver
   4  * Copyright (c) 2016 Cavium Inc.
   5  */
   6
   7 #include "qedi.h"
   8 #include "qedi_gbl.h"
   9 #include "qedi_iscsi.h"
  10 #include "qedi_dbg.h"
  11
  12 static inline struct qedi_ctx *qedi_dev_to_hba(struct device *dev)
  13 {
  14         struct Scsi_Host *shost = class_to_shost(dev);
  15
  16         return iscsi_host_priv(shost);
  17 }
  18
  19 static ssize_t port_state_show(struct device *dev,
  20                                struct device_attribute *attr,
  21                                char *buf)
  22 {
  23         struct qedi_ctx *qedi = qedi_dev_to_hba(dev);
  24
  25         if (atomic_read(&qedi->link_state) == QEDI_LINK_UP)
  26                 return sprintf(buf, "Online\n");
  27         else
  28                 return sprintf(buf, "Linkdown\n");
  29 }
  30
  31 static ssize_t speed_show(struct device *dev,
  32                           struct device_attribute *attr, char *buf)
  33 {
  34         struct qedi_ctx *qedi = qedi_dev_to_hba(dev);
  35         struct qed_link_output if_link;
  36
  37         qedi_ops->common->get_link(qedi->cdev, &if_link);
  38
  39         return sprintf(buf, "%d Gbit\n", if_link.speed / 1000);
  40 }
  41
  42 static DEVICE_ATTR_RO(port_state);
  43 static DEVICE_ATTR_RO(speed);
  44
  45 static struct attribute *qedi_shost_attrs[] = {
  46         &dev_attr_port_state.attr,
  47         &dev_attr_speed.attr,
  48         NULL
  49 };
  50
  51 static const struct attribute_group qedi_shost_attr_group = {
  52         .attrs = qedi_shost_attrs
  53 };
  54
  55 const struct attribute_group *qedi_shost_groups[] = {
  56         &qedi_shost_attr_group,
  57         NULL
  58 };