// SPDX-License-Identifier: GPL-2.0 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include #include #include #include #include #include #include #include #include #include "mesh.h" #include "decl.h" #include "cmd.h" static int lbs_add_mesh(struct lbs_private *priv); /*************************************************************************** * Mesh command handling */ static int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action, struct cmd_ds_mesh_access *cmd) { int ret; cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS); cmd->hdr.size = cpu_to_le16(sizeof(*cmd)); cmd->hdr.result = 0; cmd->action = cpu_to_le16(cmd_action); ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd); return ret; } static int __lbs_mesh_config_send(struct lbs_private *priv, struct cmd_ds_mesh_config *cmd, uint16_t action, uint16_t type) { int ret; u16 command = CMD_MESH_CONFIG_OLD; /* * Command id is 0xac for v10 FW along with mesh interface * id in bits 14-13-12. */ if (priv->mesh_tlv == TLV_TYPE_MESH_ID) command = CMD_MESH_CONFIG | (MESH_IFACE_ID << MESH_IFACE_BIT_OFFSET); cmd->hdr.command = cpu_to_le16(command); cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config)); cmd->hdr.result = 0; cmd->type = cpu_to_le16(type); cmd->action = cpu_to_le16(action); ret = lbs_cmd_with_response(priv, command, cmd); return ret; } static int lbs_mesh_config_send(struct lbs_private *priv, struct cmd_ds_mesh_config *cmd, uint16_t action, uint16_t type) { int ret; if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG)) return -EOPNOTSUPP; ret = __lbs_mesh_config_send(priv, cmd, action, type); return ret; } /* This function is the CMD_MESH_CONFIG legacy function. It only handles the * START and STOP actions. The extended actions supported by CMD_MESH_CONFIG * are all handled by preparing a struct cmd_ds_mesh_config and passing it to * lbs_mesh_config_send. */ static int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan) { struct wireless_dev *mesh_wdev; struct cmd_ds_mesh_config cmd; struct mrvl_meshie *ie; memset(&cmd, 0, sizeof(cmd)); cmd.channel = cpu_to_le16(chan); ie = (struct mrvl_meshie *)cmd.data; switch (action) { case CMD_ACT_MESH_CONFIG_START: ie->id = WLAN_EID_VENDOR_SPECIFIC; ie->val.oui[0] = 0x00; ie->val.oui[1] = 0x50; ie->val.oui[2] = 0x43; ie->val.type = MARVELL_MESH_IE_TYPE; ie->val.subtype = MARVELL_MESH_IE_SUBTYPE; ie->val.version = MARVELL_MESH_IE_VERSION; ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP; ie->val.active_metric_id = MARVELL_MESH_METRIC_ID; ie->val.mesh_capability = MARVELL_MESH_CAPABILITY; if (priv->mesh_dev) { mesh_wdev = priv->mesh_dev->ieee80211_ptr; ie->val.mesh_id_len = mesh_wdev->mesh_id_up_len; memcpy(ie->val.mesh_id, mesh_wdev->ssid, mesh_wdev->mesh_id_up_len); } ie->len = sizeof(struct mrvl_meshie_val) - IEEE80211_MAX_SSID_LEN + ie->val.mesh_id_len; cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val)); break; case CMD_ACT_MESH_CONFIG_STOP: break; default: return -1; } lbs_deb_cmd("mesh config action %d type %x channel %d SSID %*pE\n", action, priv->mesh_tlv, chan, ie->val.mesh_id_len, ie->val.mesh_id); return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv); } int lbs_mesh_set_channel(struct lbs_private *priv, u8 channel) { priv->mesh_channel = channel; return lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, channel); } static uint16_t lbs_mesh_get_channel(struct lbs_private *priv) { return priv->mesh_channel ?: 1; } /*************************************************************************** * Mesh sysfs support */ /* * Attributes exported through sysfs */ /** * anycast_mask_show - Get function for sysfs attribute anycast_mask * @dev: the &struct device * @attr: device attributes * @buf: buffer where data will be returned */ static ssize_t anycast_mask_show(struct device *dev, struct device_attribute *attr, char *buf) { struct lbs_private *priv = to_net_dev(dev)->ml_priv; struct cmd_ds_mesh_access mesh_access; int ret; memset(&mesh_access, 0, sizeof(mesh_access)); ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_ANYCAST, &mesh_access); if (ret) return ret; return snprintf(buf, 12, "0x%X\n", le32_to_cpu(mesh_access.data[0])); } /** * anycast_mask_store - Set function for sysfs attribute anycast_mask * @dev: the &struct device * @attr: device attributes * @buf: buffer that contains new attribute value * @count: size of buffer */ static ssize_t anycast_mask_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct lbs_private *priv = to_net_dev(dev)->ml_priv; struct cmd_ds_mesh_access mesh_access; uint32_t datum; int ret; memset(&mesh_access, 0, sizeof(mesh_access)); sscanf(buf, "%x", &datum); mesh_access.data[0] = cpu_to_le32(datum); ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_ANYCAST, &mesh_access); if (ret) return ret; return strlen(buf); } /** * prb_rsp_limit_show - Get function for sysfs attribute prb_rsp_limit * @dev: the &struct device * @attr: device attributes * @buf: buffer where data will be returned */ static ssize_t prb_rsp_limit_show(struct device *dev, struct device_attribute *attr, char *buf) { struct lbs_private *priv = to_net_dev(dev)->ml_priv; struct cmd_ds_mesh_access mesh_access; int ret; u32 retry_limit; memset(&mesh_access, 0, sizeof(mesh_access)); mesh_access.data[0] = cpu_to_le32(CMD_ACT_GET); ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT, &mesh_access); if (ret) return ret; retry_limit = le32_to_cpu(mesh_access.data[1]); return snprintf(buf, 10, "%d\n", retry_limit); } /** * prb_rsp_limit_store - Set function for sysfs attribute prb_rsp_limit * @dev: the &struct device * @attr: device attributes * @buf: buffer that contains new attribute value * @count: size of buffer */ static ssize_t prb_rsp_limit_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct lbs_private *priv = to_net_dev(dev)->ml_priv; struct cmd_ds_mesh_access mesh_access; int ret; unsigned long retry_limit; memset(&mesh_access, 0, sizeof(mesh_access)); mesh_access.data[0] = cpu_to_le32(CMD_ACT_SET); ret = kstrtoul(buf, 10, &retry_limit); if (ret) return ret; if (retry_limit > 15) return -ENOTSUPP; mesh_access.data[1] = cpu_to_le32(retry_limit); ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT, &mesh_access); if (ret) return ret; return strlen(buf); } /** * lbs_mesh_show - Get function for sysfs attribute mesh * @dev: the &struct device * @attr: device attributes * @buf: buffer where data will be returned */ static ssize_t lbs_mesh_show(struct device *dev, struct device_attribute *attr, char *buf) { struct lbs_private *priv = to_net_dev(dev)->ml_priv; return snprintf(buf, 5, "0x%X\n", !!priv->mesh_dev); } /** * lbs_mesh_store - Set function for sysfs attribute mesh * @dev: the &struct device * @attr: device attributes * @buf: buffer that contains new attribute value * @count: size of buffer */ static ssize_t lbs_mesh_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct lbs_private *priv = to_net_dev(dev)->ml_priv; int enable; sscanf(buf, "%x", &enable); enable = !!enable; if (enable == !!priv->mesh_dev) return count; if (enable) lbs_add_mesh(priv); else lbs_remove_mesh(priv); return count; } /* * lbs_mesh attribute to be exported per ethX interface * through sysfs (/sys/class/net/ethX/lbs_mesh) */ static DEVICE_ATTR_RW(lbs_mesh); /* * anycast_mask attribute to be exported per mshX interface * through sysfs (/sys/class/net/mshX/anycast_mask) */ static DEVICE_ATTR_RW(anycast_mask); /* * prb_rsp_limit attribute to be exported per mshX interface * through sysfs (/sys/class/net/mshX/prb_rsp_limit) */ static DEVICE_ATTR_RW(prb_rsp_limit); static struct attribute *lbs_mesh_sysfs_entries[] = { &dev_attr_anycast_mask.attr, &dev_attr_prb_rsp_limit.attr, NULL, }; static const struct attribute_group lbs_mesh_attr_group = { .attrs = lbs_mesh_sysfs_entries, }; /*************************************************************************** * Persistent configuration support */ static int mesh_get_default_parameters(struct device *dev, struct mrvl_mesh_defaults *defs) { struct lbs_private *priv = to_net_dev(dev)->ml_priv; struct cmd_ds_mesh_config cmd; int ret; memset(&cmd, 0, sizeof(struct cmd_ds_mesh_config)); ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_GET, CMD_TYPE_MESH_GET_DEFAULTS); if (ret) return -EOPNOTSUPP; memcpy(defs, &cmd.data[0], sizeof(struct mrvl_mesh_defaults)); return 0; } /** * bootflag_show - Get function for sysfs attribute bootflag * @dev: the &struct device * @attr: device attributes * @buf: buffer where data will be returned */ static ssize_t bootflag_show(struct device *dev, struct device_attribute *attr, char *buf) { struct mrvl_mesh_defaults defs; int ret; ret = mesh_get_default_parameters(dev, &defs); if (ret) return ret; return snprintf(buf, 12, "%d\n", le32_to_cpu(defs.bootflag)); } /** * bootflag_store - Set function for sysfs attribute bootflag * @dev: the &struct device * @attr: device attributes * @buf: buffer that contains new attribute value * @count: size of buffer */ static ssize_t bootflag_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct lbs_private *priv = to_net_dev(dev)->ml_priv; struct cmd_ds_mesh_config cmd; uint32_t datum; int ret; memset(&cmd, 0, sizeof(cmd)); ret = sscanf(buf, "%d", &datum); if ((ret != 1) || (datum > 1)) return -EINVAL; *((__le32 *)&cmd.data[0]) = cpu_to_le32(!!datum); cmd.length = cpu_to_le16(sizeof(uint32_t)); ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET, CMD_TYPE_MESH_SET_BOOTFLAG); if (ret) return ret; return strlen(buf); } /** * boottime_show - Get function for sysfs attribute boottime * @dev: the &struct device * @attr: device attributes * @buf: buffer where data will be returned */ static ssize_t boottime_show(struct device *dev, struct device_attribute *attr, char *buf) { struct mrvl_mesh_defaults defs; int ret; ret = mesh_get_default_parameters(dev, &defs); if (ret) return ret; return snprintf(buf, 12, "%d\n", defs.boottime); } /** * boottime_store - Set function for sysfs attribute boottime * @dev: the &struct device * @attr: device attributes * @buf: buffer that contains new attribute value * @count: size of buffer */ static ssize_t boottime_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct lbs_private *priv = to_net_dev(dev)->ml_priv; struct cmd_ds_mesh_config cmd; uint32_t datum; int ret; memset(&cmd, 0, sizeof(cmd)); ret = sscanf(buf, "%d", &datum); if ((ret != 1) || (datum > 255)) return -EINVAL; /* A too small boot time will result in the device booting into * standalone (no-host) mode before the host can take control of it, * so the change will be hard to revert. This may be a desired * feature (e.g to configure a very fast boot time for devices that * will not be attached to a host), but dangerous. So I'm enforcing a * lower limit of 20 seconds: remove and recompile the driver if this * does not work for you. */ datum = (datum < 20) ? 20 : datum; cmd.data[0] = datum; cmd.length = cpu_to_le16(sizeof(uint8_t)); ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET, CMD_TYPE_MESH_SET_BOOTTIME); if (ret) return ret; return strlen(buf); } /** * channel_show - Get function for sysfs attribute channel * @dev: the &struct device * @attr: device attributes * @buf: buffer where data will be returned */ static ssize_t channel_show(struct device *dev, struct device_attribute *attr, char *buf) { struct mrvl_mesh_defaults defs; int ret; ret = mesh_get_default_parameters(dev, &defs); if (ret) return ret; return snprintf(buf, 12, "%d\n", le16_to_cpu(defs.channel)); } /** * channel_store - Set function for sysfs attribute channel * @dev: the &struct device * @attr: device attributes * @buf: buffer that contains new attribute value * @count: size of buffer */ static ssize_t channel_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct lbs_private *priv = to_net_dev(dev)->ml_priv; struct cmd_ds_mesh_config cmd; uint32_t datum; int ret; memset(&cmd, 0, sizeof(cmd)); ret = sscanf(buf, "%d", &datum); if (ret != 1 || datum < 1 || datum > 11) return -EINVAL; *((__le16 *)&cmd.data[0]) = cpu_to_le16(datum); cmd.length = cpu_to_le16(sizeof(uint16_t)); ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET, CMD_TYPE_MESH_SET_DEF_CHANNEL); if (ret) return ret; return strlen(buf); } /** * mesh_id_show - Get function for sysfs attribute mesh_id * @dev: the &struct device * @attr: device attributes * @buf: buffer where data will be returned */ static ssize_t mesh_id_show(struct device *dev, struct device_attribute *attr, char *buf) { struct mrvl_mesh_defaults defs; int ret; ret = mesh_get_default_parameters(dev, &defs); if (ret) return ret; if (defs.meshie.val.mesh_id_len > IEEE80211_MAX_SSID_LEN) { dev_err(dev, "inconsistent mesh ID length\n"); defs.meshie.val.mesh_id_len = IEEE80211_MAX_SSID_LEN; } memcpy(buf, defs.meshie.val.mesh_id, defs.meshie.val.mesh_id_len); buf[defs.meshie.val.mesh_id_len] = '\n'; buf[defs.meshie.val.mesh_id_len + 1] = '\0'; return defs.meshie.val.mesh_id_len + 1; } /** * mesh_id_store - Set function for sysfs attribute mesh_id * @dev: the &struct device * @attr: device attributes * @buf: buffer that contains new attribute value * @count: size of buffer */ static ssize_t mesh_id_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct cmd_ds_mesh_config cmd; struct mrvl_mesh_defaults defs; struct mrvl_meshie *ie; struct lbs_private *priv = to_net_dev(dev)->ml_priv; int len; int ret; if (count < 2 || count > IEEE80211_MAX_SSID_LEN + 1) return -EINVAL; memset(&cmd, 0, sizeof(struct cmd_ds_mesh_config)); ie = (struct mrvl_meshie *) &cmd.data[0]; /* fetch all other Information Element parameters */ ret = mesh_get_default_parameters(dev, &defs); cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie)); /* transfer IE elements */ memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie)); len = count - 1; memcpy(ie->val.mesh_id, buf, len); /* SSID len */ ie->val.mesh_id_len = len; /* IE len */ ie->len = sizeof(struct mrvl_meshie_val) - IEEE80211_MAX_SSID_LEN + len; ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET, CMD_TYPE_MESH_SET_MESH_IE); if (ret) return ret; return strlen(buf); } /** * protocol_id_show - Get function for sysfs attribute protocol_id * @dev: the &struct device * @attr: device attributes * @buf: buffer where data will be returned */ static ssize_t protocol_id_show(struct device *dev, struct device_attribute *attr, char *buf) { struct mrvl_mesh_defaults defs; int ret; ret = mesh_get_default_parameters(dev, &defs); if (ret) return ret; return snprintf(buf, 5, "%d\n", defs.meshie.val.active_protocol_id); } /** * protocol_id_store - Set function for sysfs attribute protocol_id * @dev: the &struct device * @attr: device attributes * @buf: buffer that contains new attribute value * @count: size of buffer */ static ssize_t protocol_id_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct cmd_ds_mesh_config cmd; struct mrvl_mesh_defaults defs; struct mrvl_meshie *ie; struct lbs_private *priv = to_net_dev(dev)->ml_priv; uint32_t datum; int ret; memset(&cmd, 0, sizeof(cmd)); ret = sscanf(buf, "%d", &datum); if ((ret != 1) || (datum > 255)) return -EINVAL; /* fetch all other Information Element parameters */ ret = mesh_get_default_parameters(dev, &defs); cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie)); /* transfer IE elements */ ie = (struct mrvl_meshie *) &cmd.data[0]; memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie)); /* update protocol id */ ie->val.active_protocol_id = datum; ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET, CMD_TYPE_MESH_SET_MESH_IE); if (ret) return ret; return strlen(buf); } /** * metric_id_show - Get function for sysfs attribute metric_id * @dev: the &struct device * @attr: device attributes * @buf: buffer where data will be returned */ static ssize_t metric_id_show(struct device *dev, struct device_attribute *attr, char *buf) { struct mrvl_mesh_defaults defs; int ret; ret = mesh_get_default_parameters(dev, &defs); if (ret) return ret; return snprintf(buf, 5, "%d\n", defs.meshie.val.active_metric_id); } /** * metric_id_store - Set function for sysfs attribute metric_id * @dev: the &struct device * @attr: device attributes * @buf: buffer that contains new attribute value * @count: size of buffer */ static ssize_t metric_id_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct cmd_ds_mesh_config cmd; struct mrvl_mesh_defaults defs; struct mrvl_meshie *ie; struct lbs_private *priv = to_net_dev(dev)->ml_priv; uint32_t datum; int ret; memset(&cmd, 0, sizeof(cmd)); ret = sscanf(buf, "%d", &datum); if ((ret != 1) || (datum > 255)) return -EINVAL; /* fetch all other Information Element parameters */ ret = mesh_get_default_parameters(dev, &defs); cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie)); /* transfer IE elements */ ie = (struct mrvl_meshie *) &cmd.data[0]; memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie)); /* update metric id */ ie->val.active_metric_id = datum; ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET, CMD_TYPE_MESH_SET_MESH_IE); if (ret) return ret; return strlen(buf); } /** * capability_show - Get function for sysfs attribute capability * @dev: the &struct device * @attr: device attributes * @buf: buffer where data will be returned */ static ssize_t capability_show(struct device *dev, struct device_attribute *attr, char *buf) { struct mrvl_mesh_defaults defs; int ret; ret = mesh_get_default_parameters(dev, &defs); if (ret) return ret; return snprintf(buf, 5, "%d\n", defs.meshie.val.mesh_capability); } /** * capability_store - Set function for sysfs attribute capability * @dev: the &struct device * @attr: device attributes * @buf: buffer that contains new attribute value * @count: size of buffer */ static ssize_t capability_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct cmd_ds_mesh_config cmd; struct mrvl_mesh_defaults defs; struct mrvl_meshie *ie; struct lbs_private *priv = to_net_dev(dev)->ml_priv; uint32_t datum; int ret; memset(&cmd, 0, sizeof(cmd)); ret = sscanf(buf, "%d", &datum); if ((ret != 1) || (datum > 255)) return -EINVAL; /* fetch all other Information Element parameters */ ret = mesh_get_default_parameters(dev, &defs); cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie)); /* transfer IE elements */ ie = (struct mrvl_meshie *) &cmd.data[0]; memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie)); /* update value */ ie->val.mesh_capability = datum; ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET, CMD_TYPE_MESH_SET_MESH_IE); if (ret) return ret; return strlen(buf); } static DEVICE_ATTR_RW(bootflag); static DEVICE_ATTR_RW(boottime); static DEVICE_ATTR_RW(channel); static DEVICE_ATTR_RW(mesh_id); static DEVICE_ATTR_RW(protocol_id); static DEVICE_ATTR_RW(metric_id); static DEVICE_ATTR_RW(capability); static struct attribute *boot_opts_attrs[] = { &dev_attr_bootflag.attr, &dev_attr_boottime.attr, &dev_attr_channel.attr, NULL }; static const struct attribute_group boot_opts_group = { .name = "boot_options", .attrs = boot_opts_attrs, }; static struct attribute *mesh_ie_attrs[] = { &dev_attr_mesh_id.attr, &dev_attr_protocol_id.attr, &dev_attr_metric_id.attr, &dev_attr_capability.attr, NULL }; static const struct attribute_group mesh_ie_group = { .name = "mesh_ie", .attrs = mesh_ie_attrs, }; /*************************************************************************** * Initializing and starting, stopping mesh */ /* * Check mesh FW version and appropriately send the mesh start * command */ void lbs_init_mesh(struct lbs_private *priv) { /* Determine mesh_fw_ver from fwrelease and fwcapinfo */ /* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */ /* 5.110.22 have mesh command with 0xa3 command id */ /* 10.0.0.p0 FW brings in mesh config command with different id */ /* Check FW version MSB and initialize mesh_fw_ver */ if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) { /* Enable mesh, if supported, and work out which TLV it uses. 0x100 + 291 is an unofficial value used in 5.110.20.pXX 0x100 + 37 is the official value used in 5.110.21.pXX but we check them in that order because 20.pXX doesn't give an error -- it just silently fails. */ /* 5.110.20.pXX firmware will fail the command if the channel doesn't match the existing channel. But only if the TLV is correct. If the channel is wrong, _BOTH_ versions will give an error to 0x100+291, and allow 0x100+37 to succeed. It's just that 5.110.20.pXX will not have done anything useful */ priv->mesh_tlv = TLV_TYPE_OLD_MESH_ID; if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1)) { priv->mesh_tlv = TLV_TYPE_MESH_ID; if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1)) priv->mesh_tlv = 0; } } else if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) && (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)) { /* 10.0.0.pXX new firmwares should succeed with TLV * 0x100+37; Do not invoke command with old TLV. */ priv->mesh_tlv = TLV_TYPE_MESH_ID; if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1)) priv->mesh_tlv = 0; } /* Stop meshing until interface is brought up */ lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, 1); } void lbs_start_mesh(struct lbs_private *priv) { lbs_add_mesh(priv); if (device_create_file(&priv->dev->dev, &dev_attr_lbs_mesh)) netdev_err(priv->dev, "cannot register lbs_mesh attribute\n"); } int lbs_deinit_mesh(struct lbs_private *priv) { struct net_device *dev = priv->dev; int ret = 0; if (priv->mesh_tlv) { device_remove_file(&dev->dev, &dev_attr_lbs_mesh); ret = 1; } return ret; } /** * lbs_mesh_stop - close the mshX interface * * @dev: A pointer to &net_device structure * returns: 0 */ static int lbs_mesh_stop(struct net_device *dev) { struct lbs_private *priv = dev->ml_priv; lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, lbs_mesh_get_channel(priv)); spin_lock_irq(&priv->driver_lock); netif_stop_queue(dev); netif_carrier_off(dev); spin_unlock_irq(&priv->driver_lock); lbs_update_mcast(priv); if (!lbs_iface_active(priv)) lbs_stop_iface(priv); return 0; } /** * lbs_mesh_dev_open - open the mshX interface * * @dev: A pointer to &net_device structure * returns: 0 or -EBUSY if monitor mode active */ static int lbs_mesh_dev_open(struct net_device *dev) { struct lbs_private *priv = dev->ml_priv; int ret = 0; if (!priv->iface_running) { ret = lbs_start_iface(priv); if (ret) goto out; } spin_lock_irq(&priv->driver_lock); if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) { ret = -EBUSY; spin_unlock_irq(&priv->driver_lock); goto out; } netif_carrier_on(dev); if (!priv->tx_pending_len) netif_wake_queue(dev); spin_unlock_irq(&priv->driver_lock); ret = lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, lbs_mesh_get_channel(priv)); out: return ret; } static const struct net_device_ops mesh_netdev_ops = { .ndo_open = lbs_mesh_dev_open, .ndo_stop = lbs_mesh_stop, .ndo_start_xmit = lbs_hard_start_xmit, .ndo_set_mac_address = lbs_set_mac_address, .ndo_set_rx_mode = lbs_set_multicast_list, }; /** * lbs_add_mesh - add mshX interface * * @priv: A pointer to the &struct lbs_private structure * returns: 0 if successful, -X otherwise */ static int lbs_add_mesh(struct lbs_private *priv) { struct net_device *mesh_dev = NULL; struct wireless_dev *mesh_wdev; int ret = 0; /* Allocate a virtual mesh device */ mesh_wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); if (!mesh_wdev) { lbs_deb_mesh("init mshX wireless device failed\n"); ret = -ENOMEM; goto done; } mesh_dev = alloc_netdev(0, "msh%d", NET_NAME_UNKNOWN, ether_setup); if (!mesh_dev) { lbs_deb_mesh("init mshX device failed\n"); ret = -ENOMEM; goto err_free_wdev; } mesh_wdev->iftype = NL80211_IFTYPE_MESH_POINT; mesh_wdev->wiphy = priv->wdev->wiphy; if (priv->mesh_tlv) { sprintf(mesh_wdev->ssid, "mesh"); mesh_wdev->mesh_id_up_len = 4; } mesh_wdev->netdev = mesh_dev; mesh_dev->ml_priv = priv; mesh_dev->ieee80211_ptr = mesh_wdev; priv->mesh_dev = mesh_dev; mesh_dev->netdev_ops = &mesh_netdev_ops; mesh_dev->ethtool_ops = &lbs_ethtool_ops; eth_hw_addr_inherit(mesh_dev, priv->dev); SET_NETDEV_DEV(priv->mesh_dev, priv->dev->dev.parent); mesh_dev->flags |= IFF_BROADCAST | IFF_MULTICAST; mesh_dev->sysfs_groups[0] = &lbs_mesh_attr_group; mesh_dev->sysfs_groups[1] = &boot_opts_group; mesh_dev->sysfs_groups[2] = &mesh_ie_group; /* Register virtual mesh interface */ ret = register_netdev(mesh_dev); if (ret) { pr_err("cannot register mshX virtual interface\n"); goto err_free_netdev; } /* Everything successful */ ret = 0; goto done; err_free_netdev: free_netdev(mesh_dev); err_free_wdev: kfree(mesh_wdev); done: return ret; } void lbs_remove_mesh(struct lbs_private *priv) { struct net_device *mesh_dev; mesh_dev = priv->mesh_dev; if (!mesh_dev) return; netif_stop_queue(mesh_dev); netif_carrier_off(mesh_dev); unregister_netdev(mesh_dev); priv->mesh_dev = NULL; kfree(mesh_dev->ieee80211_ptr); free_netdev(mesh_dev); } /*************************************************************************** * Sending and receiving */ struct net_device *lbs_mesh_set_dev(struct lbs_private *priv, struct net_device *dev, struct rxpd *rxpd) { if (priv->mesh_dev) { if (priv->mesh_tlv == TLV_TYPE_OLD_MESH_ID) { if (rxpd->rx_control & RxPD_MESH_FRAME) dev = priv->mesh_dev; } else if (priv->mesh_tlv == TLV_TYPE_MESH_ID) { if (rxpd->u.bss.bss_num == MESH_IFACE_ID) dev = priv->mesh_dev; } } return dev; } void lbs_mesh_set_txpd(struct lbs_private *priv, struct net_device *dev, struct txpd *txpd) { if (dev == priv->mesh_dev) { if (priv->mesh_tlv == TLV_TYPE_OLD_MESH_ID) txpd->tx_control |= cpu_to_le32(TxPD_MESH_FRAME); else if (priv->mesh_tlv == TLV_TYPE_MESH_ID) txpd->u.bss.bss_num = MESH_IFACE_ID; } } /*************************************************************************** * Ethtool related */ static const char mesh_stat_strings[MESH_STATS_NUM][ETH_GSTRING_LEN] = { "drop_duplicate_bcast", "drop_ttl_zero", "drop_no_fwd_route", "drop_no_buffers", "fwded_unicast_cnt", "fwded_bcast_cnt", "drop_blind_table", "tx_failed_cnt" }; void lbs_mesh_ethtool_get_stats(struct net_device *dev, struct ethtool_stats *stats, uint64_t *data) { struct lbs_private *priv = dev->ml_priv; struct cmd_ds_mesh_access mesh_access; int ret; /* Get Mesh Statistics */ ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_STATS, &mesh_access); if (ret) { memset(data, 0, MESH_STATS_NUM*(sizeof(uint64_t))); return; } priv->mstats.fwd_drop_rbt = le32_to_cpu(mesh_access.data[0]); priv->mstats.fwd_drop_ttl = le32_to_cpu(mesh_access.data[1]); priv->mstats.fwd_drop_noroute = le32_to_cpu(mesh_access.data[2]); priv->mstats.fwd_drop_nobuf = le32_to_cpu(mesh_access.data[3]); priv->mstats.fwd_unicast_cnt = le32_to_cpu(mesh_access.data[4]); priv->mstats.fwd_bcast_cnt = le32_to_cpu(mesh_access.data[5]); priv->mstats.drop_blind = le32_to_cpu(mesh_access.data[6]); priv->mstats.tx_failed_cnt = le32_to_cpu(mesh_access.data[7]); data[0] = priv->mstats.fwd_drop_rbt; data[1] = priv->mstats.fwd_drop_ttl; data[2] = priv->mstats.fwd_drop_noroute; data[3] = priv->mstats.fwd_drop_nobuf; data[4] = priv->mstats.fwd_unicast_cnt; data[5] = priv->mstats.fwd_bcast_cnt; data[6] = priv->mstats.drop_blind; data[7] = priv->mstats.tx_failed_cnt; } int lbs_mesh_ethtool_get_sset_count(struct net_device *dev, int sset) { struct lbs_private *priv = dev->ml_priv; if (sset == ETH_SS_STATS && dev == priv->mesh_dev) return MESH_STATS_NUM; return -EOPNOTSUPP; } void lbs_mesh_ethtool_get_strings(struct net_device *dev, uint32_t stringset, uint8_t *s) { switch (stringset) { case ETH_SS_STATS: memcpy(s, mesh_stat_strings, sizeof(mesh_stat_strings)); break; } }