drivers/net/wireless/libertas/ethtool.c

   1 #include <linux/netdevice.h>
   2 #include <linux/ethtool.h>
   3 #include <linux/delay.h>
   4
   5 #include "host.h"
   6 #include "decl.h"
   7 #include "defs.h"
   8 #include "dev.h"
   9 #include "join.h"
  10 #include "wext.h"
  11 static const char * mesh_stat_strings[]= {
  12                         "drop_duplicate_bcast",
  13                         "drop_ttl_zero",
  14                         "drop_no_fwd_route",
  15                         "drop_no_buffers",
  16                         "fwded_unicast_cnt",
  17                         "fwded_bcast_cnt",
  18                         "drop_blind_table",
  19                         "tx_failed_cnt"
  20 };
  21
  22 static void libertas_ethtool_get_drvinfo(struct net_device *dev,
  23                                          struct ethtool_drvinfo *info)
  24 {
  25         wlan_private *priv = (wlan_private *) dev->priv;
  26         char fwver[32];
  27
  28         libertas_get_fwversion(priv->adapter, fwver, sizeof(fwver) - 1);
  29
  30         strcpy(info->driver, "libertas");
  31         strcpy(info->version, libertas_driver_version);
  32         strcpy(info->fw_version, fwver);
  33 }
  34
  35 /* All 8388 parts have 16KiB EEPROM size at the time of writing.
  36  * In case that changes this needs fixing.
  37  */
  38 #define LIBERTAS_EEPROM_LEN 16384
  39
  40 static int libertas_ethtool_get_eeprom_len(struct net_device *dev)
  41 {
  42         return LIBERTAS_EEPROM_LEN;
  43 }
  44
  45 static int libertas_ethtool_get_eeprom(struct net_device *dev,
  46                                   struct ethtool_eeprom *eeprom, u8 * bytes)
  47 {
  48         wlan_private *priv = (wlan_private *) dev->priv;
  49         wlan_adapter *adapter = priv->adapter;
  50         struct wlan_ioctl_regrdwr regctrl;
  51         char *ptr;
  52         int ret;
  53
  54         regctrl.action = 0;
  55         regctrl.offset = eeprom->offset;
  56         regctrl.NOB = eeprom->len;
  57
  58         if (eeprom->offset + eeprom->len > LIBERTAS_EEPROM_LEN)
  59                 return -EINVAL;
  60
  61 //      mutex_lock(&priv->mutex);
  62
  63         adapter->prdeeprom =
  64                     (char *)kmalloc(eeprom->len+sizeof(regctrl), GFP_KERNEL);
  65         if (!adapter->prdeeprom)
  66                 return -ENOMEM;
  67         memcpy(adapter->prdeeprom, &regctrl, sizeof(regctrl));
  68
  69         /* +14 is for action, offset, and NOB in
  70          * response */
  71         lbs_deb_ethtool("action:%d offset: %x NOB: %02x\n",
  72                regctrl.action, regctrl.offset, regctrl.NOB);
  73
  74         ret = libertas_prepare_and_send_command(priv,
  75                                     cmd_802_11_eeprom_access,
  76                                     regctrl.action,
  77                                     cmd_option_waitforrsp, 0,
  78                                     &regctrl);
  79
  80         if (ret) {
  81                 if (adapter->prdeeprom)
  82                         kfree(adapter->prdeeprom);
  83                 goto done;
  84         }
  85
  86         mdelay(10);
  87
  88         ptr = (char *)adapter->prdeeprom;
  89
  90         /* skip the command header, but include the "value" u32 variable */
  91         ptr = ptr + sizeof(struct wlan_ioctl_regrdwr) - 4;
  92
  93         /*
  94          * Return the result back to the user
  95          */
  96         memcpy(bytes, ptr, eeprom->len);
  97
  98         if (adapter->prdeeprom)
  99                 kfree(adapter->prdeeprom);
 100 //      mutex_unlock(&priv->mutex);
 101
 102         ret = 0;
 103
 104 done:
 105         lbs_deb_enter_args(LBS_DEB_ETHTOOL, "ret %d", ret);
 106         return ret;
 107 }
 108
 109 static void libertas_ethtool_get_stats(struct net_device * dev,
 110                                 struct ethtool_stats * stats, u64 * data)
 111 {
 112         wlan_private *priv = dev->priv;
 113
 114         lbs_deb_enter(LBS_DEB_ETHTOOL);
 115
 116         stats->cmd = ETHTOOL_GSTATS;
 117         BUG_ON(stats->n_stats != MESH_STATS_NUM);
 118
 119         data[0] = priv->mstats.fwd_drop_rbt;
 120         data[1] = priv->mstats.fwd_drop_ttl;
 121         data[2] = priv->mstats.fwd_drop_noroute;
 122         data[3] = priv->mstats.fwd_drop_nobuf;
 123         data[4] = priv->mstats.fwd_unicast_cnt;
 124         data[5] = priv->mstats.fwd_bcast_cnt;
 125         data[6] = priv->mstats.drop_blind;
 126         data[7] = priv->mstats.tx_failed_cnt;
 127
 128         lbs_deb_enter(LBS_DEB_ETHTOOL);
 129 }
 130
 131 static int libertas_ethtool_get_stats_count(struct net_device * dev)
 132 {
 133         int ret;
 134         wlan_private *priv = dev->priv;
 135         struct cmd_ds_mesh_access mesh_access;
 136
 137         lbs_deb_enter(LBS_DEB_ETHTOOL);
 138
 139         /* Get Mesh Statistics */
 140         ret = libertas_prepare_and_send_command(priv,
 141                         cmd_mesh_access, cmd_act_mesh_get_stats,
 142                         cmd_option_waitforrsp, 0, &mesh_access);
 143
 144         if (ret) {
 145                 ret = 0;
 146                 goto done;
 147         }
 148
 149         priv->mstats.fwd_drop_rbt = le32_to_cpu(mesh_access.data[0]);
 150         priv->mstats.fwd_drop_ttl = le32_to_cpu(mesh_access.data[1]);
 151         priv->mstats.fwd_drop_noroute = le32_to_cpu(mesh_access.data[2]);
 152         priv->mstats.fwd_drop_nobuf = le32_to_cpu(mesh_access.data[3]);
 153         priv->mstats.fwd_unicast_cnt = le32_to_cpu(mesh_access.data[4]);
 154         priv->mstats.fwd_bcast_cnt = le32_to_cpu(mesh_access.data[5]);
 155         priv->mstats.drop_blind = le32_to_cpu(mesh_access.data[6]);
 156         priv->mstats.tx_failed_cnt = le32_to_cpu(mesh_access.data[7]);
 157
 158         ret = MESH_STATS_NUM;
 159
 160 done:
 161         lbs_deb_enter_args(LBS_DEB_ETHTOOL, "ret %d", ret);
 162         return ret;
 163 }
 164
 165 static void libertas_ethtool_get_strings (struct net_device * dev,
 166                                           u32 stringset,
 167                                           u8 * s)
 168 {
 169         int i;
 170
 171         lbs_deb_enter(LBS_DEB_ETHTOOL);
 172
 173         switch (stringset) {
 174         case ETH_SS_STATS:
 175                 for (i=0; i < MESH_STATS_NUM; i++) {
 176                         memcpy(s + i * ETH_GSTRING_LEN,
 177                                         mesh_stat_strings[i],
 178                                         ETH_GSTRING_LEN);
 179                 }
 180                 break;
 181         }
 182         lbs_deb_enter(LBS_DEB_ETHTOOL);
 183 }
 184
 185 struct ethtool_ops libertas_ethtool_ops = {
 186         .get_drvinfo = libertas_ethtool_get_drvinfo,
 187         .get_eeprom =  libertas_ethtool_get_eeprom,
 188         .get_eeprom_len = libertas_ethtool_get_eeprom_len,
 189         .get_stats_count = libertas_ethtool_get_stats_count,
 190         .get_ethtool_stats = libertas_ethtool_get_stats,
 191         .get_strings = libertas_ethtool_get_strings,
 192 };
 193