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
 12static 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
 33static int lbs_ethtool_get_eeprom_len(struct net_device *dev)
 34{
 35	return LBS_EEPROM_LEN;
 36}
 37
 38static 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
 61static 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
 81static 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
103const 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