| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| #include <linux/delay.h> |
| #include <linux/etherdevice.h> |
| #include <linux/hardirq.h> |
| #include <linux/netdevice.h> |
| #include <linux/if_ether.h> |
| #include <linux/if_arp.h> |
| #include <linux/kthread.h> |
| #include <linux/kfifo.h> |
| #include <net/cfg80211.h> |
| |
| #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 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; |
| ie->val.mesh_id_len = priv->mesh_ssid_len; |
| memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len); |
| ie->len = sizeof(struct mrvl_meshie_val) - |
| IEEE80211_MAX_SSID_LEN + priv->mesh_ssid_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, priv->mesh_ssid_len, |
| priv->mesh_ssid); |
| |
| 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 |
| */ |
| |
| /** |
| * lbs_anycast_get - Get function for sysfs attribute anycast_mask |
| * @dev: the &struct device |
| * @attr: device attributes |
| * @buf: buffer where data will be returned |
| */ |
| static ssize_t lbs_anycast_get(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])); |
| } |
| |
| /** |
| * lbs_anycast_set - 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 lbs_anycast_set(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); |
| } |
| |
| /** |
| * lbs_prb_rsp_limit_get - 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 lbs_prb_rsp_limit_get(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); |
| } |
| |
| /** |
| * lbs_prb_rsp_limit_set - 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 lbs_prb_rsp_limit_set(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_get - 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_get(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_set - 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_set(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(lbs_mesh, 0644, lbs_mesh_get, lbs_mesh_set); |
| |
| /* |
| * anycast_mask attribute to be exported per mshX interface |
| * through sysfs (/sys/class/net/mshX/anycast_mask) |
| */ |
| static DEVICE_ATTR(anycast_mask, 0644, lbs_anycast_get, lbs_anycast_set); |
| |
| /* |
| * prb_rsp_limit attribute to be exported per mshX interface |
| * through sysfs (/sys/class/net/mshX/prb_rsp_limit) |
| */ |
| static DEVICE_ATTR(prb_rsp_limit, 0644, lbs_prb_rsp_limit_get, |
| lbs_prb_rsp_limit_set); |
| |
| 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_get - Get function for sysfs attribute bootflag |
| * @dev: the &struct device |
| * @attr: device attributes |
| * @buf: buffer where data will be returned |
| */ |
| static ssize_t bootflag_get(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_set - 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_set(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_get - Get function for sysfs attribute boottime |
| * @dev: the &struct device |
| * @attr: device attributes |
| * @buf: buffer where data will be returned |
| */ |
| static ssize_t boottime_get(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_set - 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_set(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_get - Get function for sysfs attribute channel |
| * @dev: the &struct device |
| * @attr: device attributes |
| * @buf: buffer where data will be returned |
| */ |
| static ssize_t channel_get(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_set - 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_set(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_get - 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_get(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_set - 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_set(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_get - 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_get(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_set - 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_set(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_get - 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_get(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_set - 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_set(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_get - Get function for sysfs attribute capability |
| * @dev: the &struct device |
| * @attr: device attributes |
| * @buf: buffer where data will be returned |
| */ |
| static ssize_t capability_get(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_set - 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_set(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(bootflag, 0644, bootflag_get, bootflag_set); |
| static DEVICE_ATTR(boottime, 0644, boottime_get, boottime_set); |
| static DEVICE_ATTR(channel, 0644, channel_get, channel_set); |
| static DEVICE_ATTR(mesh_id, 0644, mesh_id_get, mesh_id_set); |
| static DEVICE_ATTR(protocol_id, 0644, protocol_id_get, protocol_id_set); |
| static DEVICE_ATTR(metric_id, 0644, metric_id_get, metric_id_set); |
| static DEVICE_ATTR(capability, 0644, capability_get, capability_set); |
| |
| 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, |
| }; |
| |
| static void lbs_persist_config_init(struct net_device *dev) |
| { |
| int ret; |
| ret = sysfs_create_group(&(dev->dev.kobj), &boot_opts_group); |
| ret = sysfs_create_group(&(dev->dev.kobj), &mesh_ie_group); |
| } |
| |
| static void lbs_persist_config_remove(struct net_device *dev) |
| { |
| sysfs_remove_group(&(dev->dev.kobj), &boot_opts_group); |
| sysfs_remove_group(&(dev->dev.kobj), &mesh_ie_group); |
| } |
| |
| |
| /*************************************************************************** |
| * Initializing and starting, stopping mesh |
| */ |
| |
| /* |
| * Check mesh FW version and appropriately send the mesh start |
| * command |
| */ |
| int lbs_init_mesh(struct lbs_private *priv) |
| { |
| int ret = 0; |
| |
| /* 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); |
| |
| if (priv->mesh_tlv) { |
| sprintf(priv->mesh_ssid, "mesh"); |
| priv->mesh_ssid_len = 4; |
| ret = 1; |
| } |
| |
| return ret; |
| } |
| |
| 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; |
| 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; |
| /* Register virtual mesh interface */ |
| ret = register_netdev(mesh_dev); |
| if (ret) { |
| pr_err("cannot register mshX virtual interface\n"); |
| goto err_free_netdev; |
| } |
| |
| ret = sysfs_create_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group); |
| if (ret) |
| goto err_unregister; |
| |
| lbs_persist_config_init(mesh_dev); |
| |
| /* Everything successful */ |
| ret = 0; |
| goto done; |
| |
| err_unregister: |
| unregister_netdev(mesh_dev); |
| |
| 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); |
| sysfs_remove_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group); |
| lbs_persist_config_remove(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; |
| } |
| } |