drivers/net/wireless/marvell/libertas/ethtool.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/hardirq.h>
   3 #include <linux/netdevice.h>
   4 #include <linux/ethtool.h>
   5 #include <linux/delay.h>
   6
   7 #include "decl.h"
   8 #include "cmd.h"
   9 #include "mesh.h"
  10
  11
  12 static void lbs_ethtool_get_drvinfo(struct net_device *dev,
  13                                          struct ethtool_drvinfo *info)
  14 {
  15         struct lbs_private *priv = dev->ml_priv;
  16
  17         snprintf(info->fw_version, sizeof(info->fw_version),
  18                 "%u.%u.%u.p%u",
  19                 priv->fwrelease >> 24 & 0xff,
  20                 priv->fwrelease >> 16 & 0xff,
  21                 priv->fwrelease >>  8 & 0xff,
  22                 priv->fwrelease       & 0xff);
  23         strscpy(info->driver, "libertas", sizeof(info->driver));
  24         strscpy(info->version, lbs_driver_version, sizeof(info->version));
  25 }
  26
  27 /*
  28  * All 8388 parts have 16KiB EEPROM size at the time of writing.
  29  * In case that changes this needs fixing.
  30  */
  31 #define LBS_EEPROM_LEN 16384
  32
  33 static int lbs_ethtool_get_eeprom_len(struct net_device *dev)
  34 {
  35         return LBS_EEPROM_LEN;
  36 }
  37
  38 static int lbs_ethtool_get_eeprom(struct net_device *dev,
  39                                   struct ethtool_eeprom *eeprom, u8 * bytes)
  40 {
  41         struct lbs_private *priv = dev->ml_priv;
  42         struct cmd_ds_802_11_eeprom_access cmd;
  43         int ret;
  44
  45         if (eeprom->offset + eeprom->len > LBS_EEPROM_LEN ||
  46             eeprom->len > LBS_EEPROM_READ_LEN)
  47                 return -EINVAL;
  48
  49         cmd.hdr.size = cpu_to_le16(sizeof(struct cmd_ds_802_11_eeprom_access) -
  50                 LBS_EEPROM_READ_LEN + eeprom->len);
  51         cmd.action = cpu_to_le16(CMD_ACT_GET);
  52         cmd.offset = cpu_to_le16(eeprom->offset);
  53         cmd.len    = cpu_to_le16(eeprom->len);
  54         ret = lbs_cmd_with_response(priv, CMD_802_11_EEPROM_ACCESS, &cmd);
  55         if (!ret)
  56                 memcpy(bytes, cmd.value, eeprom->len);
  57
  58         return ret;
  59 }
  60
  61 static void lbs_ethtool_get_wol(struct net_device *dev,
  62                                 struct ethtool_wolinfo *wol)
  63 {
  64         struct lbs_private *priv = dev->ml_priv;
  65
  66         wol->supported = WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY;
  67
  68         if (priv->wol_criteria == EHS_REMOVE_WAKEUP)
  69                 return;
  70
  71         if (priv->wol_criteria & EHS_WAKE_ON_UNICAST_DATA)
  72                 wol->wolopts |= WAKE_UCAST;
  73         if (priv->wol_criteria & EHS_WAKE_ON_MULTICAST_DATA)
  74                 wol->wolopts |= WAKE_MCAST;
  75         if (priv->wol_criteria & EHS_WAKE_ON_BROADCAST_DATA)
  76                 wol->wolopts |= WAKE_BCAST;
  77         if (priv->wol_criteria & EHS_WAKE_ON_MAC_EVENT)
  78                 wol->wolopts |= WAKE_PHY;
  79 }
  80
  81 static int lbs_ethtool_set_wol(struct net_device *dev,
  82                                struct ethtool_wolinfo *wol)
  83 {
  84         struct lbs_private *priv = dev->ml_priv;
  85
  86         if (wol->wolopts & ~(WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY))
  87                 return -EOPNOTSUPP;
  88
  89         priv->wol_criteria = 0;
  90         if (wol->wolopts & WAKE_UCAST)
  91                 priv->wol_criteria |= EHS_WAKE_ON_UNICAST_DATA;
  92         if (wol->wolopts & WAKE_MCAST)
  93                 priv->wol_criteria |= EHS_WAKE_ON_MULTICAST_DATA;
  94         if (wol->wolopts & WAKE_BCAST)
  95                 priv->wol_criteria |= EHS_WAKE_ON_BROADCAST_DATA;
  96         if (wol->wolopts & WAKE_PHY)
  97                 priv->wol_criteria |= EHS_WAKE_ON_MAC_EVENT;
  98         if (wol->wolopts == 0)
  99                 priv->wol_criteria |= EHS_REMOVE_WAKEUP;
 100         return 0;
 101 }
 102
 103 const struct ethtool_ops lbs_ethtool_ops = {
 104         .get_drvinfo = lbs_ethtool_get_drvinfo,
 105         .get_eeprom =  lbs_ethtool_get_eeprom,
 106         .get_eeprom_len = lbs_ethtool_get_eeprom_len,
 107 #ifdef CONFIG_LIBERTAS_MESH
 108         .get_sset_count = lbs_mesh_ethtool_get_sset_count,
 109         .get_ethtool_stats = lbs_mesh_ethtool_get_stats,
 110         .get_strings = lbs_mesh_ethtool_get_strings,
 111 #endif
 112         .get_wol = lbs_ethtool_get_wol,
 113         .set_wol = lbs_ethtool_set_wol,
 114 };
 115