Introduce NL80211_ATTR_TID_CONFIG_TX_RATES in nl80211_attr_tid_config to accept data TID specific TX bitrate configuration through NL80211_CMD_SET_TID_CONFIG command. TID for which the this configuration is to be applied is passed in NL80211_ATTR_TID_CONFIG_TID attribute. TX bitrate mask values passed in NL80211_ATTR_TX_RATES attribute and NL80211_ATTR_TID_CONFIG_TX_RATES attribute will have types of the TX rate should be applied. When the user-space wants this configuration peer specific rather than being applied for all the connected stations, MAC address of the peer can be passed in NL80211_ATTR_MAC attribute.
Driver supporting this feature should advertise NL80211_EXT_FEATURE_PER_TID_TX_BITRATE_MASK and supporting per-STA data TID TX bitrate configuration should advertise NL80211_EXT_FEATURE_PER_STA_TX_BITRATE_MASK. Signed-off-by: Tamizh chelvam <[email protected]> --- include/net/cfg80211.h | 5 +++ include/uapi/linux/nl80211.h | 39 ++++++++++++++++++ net/wireless/nl80211.c | 89 ++++++++++++++++++++++++++++++++---------- 3 files changed, 113 insertions(+), 20 deletions(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 86dee3d..ebf041b 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -514,6 +514,7 @@ enum ieee80211_tid_conf_mask { IEEE80211_TID_CONF_RETRY = BIT(1), IEEE80211_TID_CONF_AMPDU = BIT(2), IEEE80211_TID_CONF_RTSCTS = BIT(3), + IEEE80211_TID_CONF_TX_BITRATE = BIT(4), }; /** @@ -526,6 +527,8 @@ enum ieee80211_tid_conf_mask { * @retry_short: retry count value * @ampdu: Enable/Disable aggregation * @rtscts: Enable/Disable RTS/CTS + * @txrate_type: TX bitrate mask type + * @mask: bitrate to be applied for the TID */ struct ieee80211_tid_cfg { u8 tid; @@ -535,6 +538,8 @@ struct ieee80211_tid_cfg { int retry_short; u8 ampdu; u8 rtscts; + enum nl80211_tx_rate_setting txrate_type; + struct cfg80211_bitrate_mask *mask; }; /** diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 996b4d4..c8aa3ba 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -4557,6 +4557,18 @@ enum nl80211_tx_power_setting { NL80211_TX_POWER_FIXED, }; +/** + * enum nl80211_tx_rate_setting - TX rate configuration type + * @NL80211_TX_RATE_AUTOMATIC: automatically determine TX rate + * @NL80211_TX_RATE_LIMITED: limit the TX rate by the TX rate parameter + * @NL80211_TX_RATE_FIXED: fix TX rate to the TX rate parameter + */ +enum nl80211_tx_rate_setting { + NL80211_TX_RATE_AUTOMATIC, + NL80211_TX_RATE_LIMITED, + NL80211_TX_RATE_FIXED, +}; + enum nl80211_tid_config { NL80211_TID_CONFIG_DEFAULT, NL80211_TID_CONFIG_ENABLE, @@ -4645,6 +4657,25 @@ enum nl80211_tid_config { * NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL and supporting per station * RTS_CTS configuration should advertise * NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL. + * @NL80211_ATTR_TID_CONFIG_TX_RATES: Data frame TX rate mask should be applied + * with the parameters passed through %NL80211_ATTR_TX_RATES. This + * configuration is per TID, TID is specified with + * %NL80211_ATTR_TID_CONFIG_TID. + * If the peer MAC address is passed in %NL80211_ATTR_MAC, then this + * configuration is applied to the data frame for the tid to that connected + * station. This attribute will be useful to notfiy the driver that what + * type of txrate should be applied(%enum enum nl80211_tx_rate_setting) + * for the connected station (%NL80211_ATTR_MAC), + * Station specific retry configuration is valid only for STA's + * current connection. i.e. the configuration will be reset to default when + * the station connects back after disconnection/roaming. + * when user-space does not include %NL80211_ATTR_MAC, this configuration + * should be treated as per-netdev configuration. This configuration will + * be cleared when the interface goes down and on the disconnection from a + * BSS. Driver supporting this feature should advertise + * NL80211_EXT_FEATURE_PER_TID_TX_BITRATE_MASK and supporting per station + * TX bitrate configuration should advertise + * NL80211_EXT_FEATURE_PER_STA_TX_BITRATE_MASK. */ enum nl80211_attr_tid_config { __NL80211_ATTR_TID_INVALID, @@ -4655,6 +4686,8 @@ enum nl80211_attr_tid_config { NL80211_ATTR_TID_CONFIG_RETRY_LONG, NL80211_ATTR_TID_CONFIG_AMPDU_CTRL, NL80211_ATTR_TID_CONFIG_RTSCTS_CTRL, + NL80211_ATTR_TID_CONFIG_TX_RATES_TYPE, + NL80211_ATTR_TID_CONFIG_TX_RATES, /* keep last */ __NL80211_ATTR_TID_CONFIG_AFTER_LAST, @@ -5477,6 +5510,10 @@ enum nl80211_feature_flags { * RTS_CTS control(enable/disable). * @NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL: Driver supports STA specific * RTS_CTS control(enable/disable). + * @NL80211_EXT_FEATURE_PER_TID_TX_BITRATE_MASK: Driver supports TID specific + * TX bitrate configuration. + * @NL80211_EXT_FEATURE_PER_STA_TX_BITRATE_MASK: Driver supports STA specific + * TX bitrate configuration. * * @NUM_NL80211_EXT_FEATURES: number of extended features. * @MAX_NL80211_EXT_FEATURES: highest extended feature index. @@ -5527,6 +5564,8 @@ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL, NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL, NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL, + NL80211_EXT_FEATURE_PER_TID_TX_BITRATE_MASK, + NL80211_EXT_FEATURE_PER_STA_TX_BITRATE_MASK, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 47bfc62..1e46778 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -280,6 +280,15 @@ static int validate_ie_attr(const struct nlattr *attr, NLA_POLICY_NESTED_ARRAY(nl80211_psmr_peer_attr_policy), }; +static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { + [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, + .len = NL80211_MAX_SUPP_RATES }, + [NL80211_TXRATE_HT] = { .type = NLA_BINARY, + .len = NL80211_MAX_SUPP_HT_RATES }, + [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)}, + [NL80211_TXRATE_GI] = { .type = NLA_U8 }, +}; + static const struct nla_policy nl80211_attr_tid_config_policy[NL80211_ATTR_TID_CONFIG_MAX + 1] = { [NL80211_ATTR_TID_CONFIG_TID] = { .type = NLA_U8 }, @@ -292,6 +301,10 @@ static int validate_ie_attr(const struct nlattr *attr, NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE), [NL80211_ATTR_TID_CONFIG_RTSCTS_CTRL] = NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE), + [NL80211_ATTR_TID_CONFIG_TX_RATES_TYPE] = + NLA_POLICY_MAX(NLA_U8, NL80211_TX_RATE_FIXED), + [NL80211_ATTR_TID_CONFIG_TX_RATES] = + NLA_POLICY_NESTED(nl80211_txattr_policy), }; const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { @@ -397,7 +410,8 @@ static int validate_ie_attr(const struct nlattr *attr, [NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN }, [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, - [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, + [NL80211_ATTR_TX_RATES] = + NLA_POLICY_NESTED(nl80211_txattr_policy), [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, .len = IEEE80211_MAX_DATA_LEN }, [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, @@ -4014,20 +4028,12 @@ static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband, return true; } -static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { - [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, - .len = NL80211_MAX_SUPP_RATES }, - [NL80211_TXRATE_HT] = { .type = NLA_BINARY, - .len = NL80211_MAX_SUPP_HT_RATES }, - [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)}, - [NL80211_TXRATE_GI] = { .type = NLA_U8 }, -}; - -static int nl80211_parse_tx_bitrate_mask(struct genl_info *info, +static int nl80211_parse_tx_bitrate_mask(struct nlattr *attrs[], + struct cfg80211_registered_device *rdev, + enum nl80211_attrs attr, struct cfg80211_bitrate_mask *mask) { struct nlattr *tb[NL80211_TXRATE_MAX + 1]; - struct cfg80211_registered_device *rdev = info->user_ptr[0]; int rem, i; struct nlattr *tx_rates; struct ieee80211_supported_band *sband; @@ -4054,14 +4060,14 @@ static int nl80211_parse_tx_bitrate_mask(struct genl_info *info, } /* if no rates are given set it back to the defaults */ - if (!info->attrs[NL80211_ATTR_TX_RATES]) + if (!attrs[attr]) goto out; /* The nested attribute uses enum nl80211_band as the index. This maps * directly to the enum nl80211_band values used in cfg80211. */ BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); - nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) { + nla_for_each_nested(tx_rates, attrs[attr], rem) { enum nl80211_band band = nla_type(tx_rates); int err; @@ -4071,7 +4077,7 @@ static int nl80211_parse_tx_bitrate_mask(struct genl_info *info, if (sband == NULL) return -EINVAL; err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates, - nl80211_txattr_policy, info->extack); + NULL, NULL); if (err) return err; if (tb[NL80211_TXRATE_LEGACY]) { @@ -4504,7 +4510,9 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) return -EINVAL; if (info->attrs[NL80211_ATTR_TX_RATES]) { - err = nl80211_parse_tx_bitrate_mask(info, ¶ms.beacon_rate); + err = nl80211_parse_tx_bitrate_mask(info->attrs, rdev, + NL80211_ATTR_TX_RATES, + ¶ms.beacon_rate); if (err) return err; @@ -10110,7 +10118,8 @@ static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, if (!rdev->ops->set_bitrate_mask) return -EOPNOTSUPP; - err = nl80211_parse_tx_bitrate_mask(info, &mask); + err = nl80211_parse_tx_bitrate_mask(info->attrs, rdev, NL80211_ATTR_TX_RATES, + &mask); if (err) return err; @@ -10702,7 +10711,9 @@ static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) } if (info->attrs[NL80211_ATTR_TX_RATES]) { - err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate); + err = nl80211_parse_tx_bitrate_mask(info->attrs, rdev, + NL80211_ATTR_TX_RATES, + &setup.beacon_rate); if (err) return err; @@ -13278,8 +13289,10 @@ static int nl80211_get_ftm_responder_stats(struct sk_buff *skb, static int parse_tid_conf(struct cfg80211_registered_device *rdev, struct nlattr *attrs[], struct ieee80211_tid_cfg *tid_conf, - const u8 *peer) + struct genl_info *info, const u8 *peer) { + int ret; + tid_conf->tid = nla_get_u8(attrs[NL80211_ATTR_TID_CONFIG_TID]); if (attrs[NL80211_ATTR_TID_CONFIG_NOACK]) { if (!wiphy_ext_feature_isset(&rdev->wiphy, @@ -13354,6 +13367,42 @@ static int parse_tid_conf(struct cfg80211_registered_device *rdev, nla_get_u8(attrs[NL80211_ATTR_TID_CONFIG_RTSCTS_CTRL]); } + if (attrs[NL80211_ATTR_TID_CONFIG_TX_RATES_TYPE]) { + int idx; + enum nl80211_attrs attr; + + if (!wiphy_ext_feature_isset(&rdev->wiphy, + NL80211_EXT_FEATURE_PER_TID_TX_BITRATE_MASK)) + return -EOPNOTSUPP; + + if (peer && + !wiphy_ext_feature_isset(&rdev->wiphy, + NL80211_EXT_FEATURE_PER_STA_TX_BITRATE_MASK)) + return -EOPNOTSUPP; + + idx = NL80211_ATTR_TID_CONFIG_TX_RATES_TYPE; + tid_conf->txrate_type = nla_get_u8(attrs[idx]); + + tid_conf->tid_conf_mask |= IEEE80211_TID_CONF_TX_BITRATE; + if (tid_conf->txrate_type != NL80211_TX_RATE_AUTOMATIC) { + tid_conf->mask = + kzalloc(sizeof(struct cfg80211_bitrate_mask), + GFP_KERNEL); + if (!tid_conf->mask) + return -ENOMEM; + + attr = NL80211_ATTR_TID_CONFIG_TX_RATES; + ret = nl80211_parse_tx_bitrate_mask(attrs, rdev, attr, + tid_conf->mask); + if (ret) { + kfree(tid_conf->mask); + return ret; + } + } else { + tid_conf->mask = NULL; + } + } + return 0; } @@ -13405,7 +13454,7 @@ static int nl80211_set_tid_config(struct sk_buff *skb, return -EINVAL; ret = parse_tid_conf(rdev, attrs, &tid_conf->tid_conf[conf_idx], - tid_conf->peer); + info, tid_conf->peer); if (ret) goto bad_tid_conf; -- 1.7.9.5 _______________________________________________ ath10k mailing list [email protected] http://lists.infradead.org/mailman/listinfo/ath10k
