Add a new NL command, NL80211_CMD_SET_TID_CONFIG to support data TID specific configuration. This per TID configurations are passed in NL80211_ATTR_TID_CONFIG which is a nested attribute. This patch adds support to configure per TID noack policy through NL80211_ATTR_TID_CONFIG_NOACK attribute. Data TID value for this configuration will be passed through NL80211_ATTR_TID_CONFIG_TID attribute. 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. This patch introduced enum ieee80211_tid_conf_mask to notify the driver that which configuration modified. Driver supporting data TID specific noack policy configuration should be advertise through NL80211_EXT_FEATURE_PER_TID_NOACK_CONFIG and supporting per STA data TID noack policy configuration should be advertise through NL80211_EXT_FEATURE_PER_STA_NOACK_CONFIG
Signed-off-by: Tamizh chelvam <[email protected]> --- include/net/cfg80211.h | 35 +++++++++++++++ include/uapi/linux/nl80211.h | 51 +++++++++++++++++++++ net/wireless/nl80211.c | 102 ++++++++++++++++++++++++++++++++++++++++++ net/wireless/rdev-ops.h | 11 +++++ net/wireless/trace.h | 18 ++++++++ 5 files changed, 217 insertions(+) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index bb307a1..c606e78 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -509,6 +509,35 @@ struct cfg80211_chan_def { u32 center_freq2; }; +enum ieee80211_tid_conf_mask { + IEEE80211_TID_CONF_NOACK = BIT(0), +}; + +/** + * struct ieee80211_tid_cfg - TID specific configuration + * @tid: TID number + * @tid_conf_mask: bitmap indicating which parameter changed + * see %enum ieee80211_tid_conf_mask + * @noack: noack configuration value for the TID + */ +struct ieee80211_tid_cfg { + u8 tid; + enum ieee80211_tid_conf_mask tid_conf_mask; + u8 noack; +}; + +/** + * struct ieee80211_tid_config - TID configuration + * @peer: Station's MAC address + * @n_tid_conf: Number of TID specific configurations to be applied + * @tid_conf: Configuration change info + */ +struct ieee80211_tid_config { + const u8 *peer; + u32 n_tid_conf; + struct ieee80211_tid_cfg tid_conf[]; +}; + /** * cfg80211_get_chandef_type - return old channel type from chandef * @chandef: the channel definition @@ -3436,6 +3465,10 @@ struct cfg80211_pmsr_request { * Statistics should be cumulative, currently no way to reset is provided. * @start_pmsr: start peer measurement (e.g. FTM) * @abort_pmsr: abort peer measurement + * @set_tid_config: TID specific configuration. Apply this configuration for + * all the connected stations in the BSS if peer is NULL. Otherwise + * apply this configuration to the specific station. + * This callback may sleep. */ struct cfg80211_ops { int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow); @@ -3750,6 +3783,8 @@ struct cfg80211_ops { struct cfg80211_pmsr_request *request); void (*abort_pmsr)(struct wiphy *wiphy, struct wireless_dev *wdev, struct cfg80211_pmsr_request *request); + int (*set_tid_config)(struct wiphy *wiphy, struct net_device *dev, + struct ieee80211_tid_config *tid_conf); }; /* diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index dd4f86e..c901a48 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -1065,6 +1065,10 @@ * indicated by %NL80211_ATTR_WIPHY_FREQ and other attributes * determining the width and type. * + * @NL80211_CMD_SET_TID_CONFIG: Data frame TID specific configuration + * is passed through this command using %NL80211_ATTR_TID_CONFIG + * nested attributes. + * * @NL80211_CMD_MAX: highest used command number * @__NL80211_CMD_AFTER_LAST: internal use */ @@ -1285,6 +1289,8 @@ enum nl80211_commands { NL80211_CMD_NOTIFY_RADAR, + NL80211_CMD_SET_TID_CONFIG, + /* add new commands above here */ /* used to define NL80211_CMD_MAX below */ @@ -2308,6 +2314,9 @@ enum nl80211_commands { * @NL80211_ATTR_AIRTIME_WEIGHT: Station's weight when scheduled by the airtime * scheduler. * + * @NL80211_ATTR_TID_CONFIG: TID specific configuration in a + * nested attribute with %NL80211_ATTR_TID_* sub-attributes. + * * @NUM_NL80211_ATTR: total number of nl80211_attrs available * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use @@ -2759,6 +2768,8 @@ enum nl80211_attrs { NL80211_ATTR_AIRTIME_WEIGHT, + NL80211_ATTR_TID_CONFIG, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, @@ -4543,6 +4554,39 @@ enum nl80211_tx_power_setting { NL80211_TX_POWER_FIXED, }; +enum nl80211_tid_config { + NL80211_TID_CONFIG_DEFAULT, + NL80211_TID_CONFIG_ENABLE, + NL80211_TID_CONFIG_DISABLE, +}; + +/* enum nl80211_attr_tid_config - TID specific configuration. + * @NL80211_ATTR_TID_CONFIG_TID: a TID value (u8 attribute). + * @NL80211_ATTR_TID_CONFIG_NOACK: Configure ack policy for the TID. + * specified in %NL80211_ATTR_TID_CONFIG_TID. see %enum nl80211_tid_config. + * Its type is u8, if the peer MAC address is passed in %NL80211_ATTR_MAC, + * then the noack configuration is applied to the data frame for the tid + * to that connected station. This 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, then 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_NOACK_CONFIG and + * NL80211_EXT_FEATURE_PER_STA_NOACK_CONFIG for supporting per sta + * configuration. + */ +enum nl80211_attr_tid_config { + __NL80211_ATTR_TID_INVALID, + NL80211_ATTR_TID_CONFIG_TID, + NL80211_ATTR_TID_CONFIG_NOACK, + + /* keep last */ + __NL80211_ATTR_TID_CONFIG_AFTER_LAST, + NL80211_ATTR_TID_CONFIG_MAX = __NL80211_ATTR_TID_CONFIG_AFTER_LAST - 1 +}; + /** * enum nl80211_packet_pattern_attr - packet pattern attribute * @__NL80211_PKTPAT_INVALID: invalid number for nested attribute @@ -5343,6 +5387,11 @@ enum nl80211_feature_flags { * @NL80211_EXT_FEATURE_AP_PMKSA_CACHING: Driver/device supports PMKSA caching * (set/del PMKSA operations) in AP mode. * + * @NL80211_EXT_FEATURE_PER_TID_NOACK_CONFIG: Driver supports per TID NoAck + * policy functionality. + * @NL80211_EXT_FEATURE_PER_STA_NOACK_CONFIG: Driver supports STA specific NoAck + * policy functionality. + * * @NUM_NL80211_EXT_FEATURES: number of extended features. * @MAX_NL80211_EXT_FEATURES: highest extended feature index. */ @@ -5384,6 +5433,8 @@ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER, NL80211_EXT_FEATURE_AIRTIME_FAIRNESS, NL80211_EXT_FEATURE_AP_PMKSA_CACHING, + NL80211_EXT_FEATURE_PER_TID_NOACK_CONFIG, + NL80211_EXT_FEATURE_PER_STA_NOACK_CONFIG, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 25a9e3b..f0e44ee 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -280,6 +280,13 @@ static int validate_ie_attr(const struct nlattr *attr, NLA_POLICY_NESTED_ARRAY(nl80211_psmr_peer_attr_policy), }; +static const struct nla_policy +nl80211_attr_tid_config_policy[NL80211_ATTR_TID_CONFIG_MAX + 1] = { + [NL80211_ATTR_TID_CONFIG_TID] = { .type = NLA_U8 }, + [NL80211_ATTR_TID_CONFIG_NOACK] = + NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE), +}; + const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, @@ -541,6 +548,8 @@ static int validate_ie_attr(const struct nlattr *attr, [NL80211_ATTR_PEER_MEASUREMENTS] = NLA_POLICY_NESTED(nl80211_pmsr_attr_policy), [NL80211_ATTR_AIRTIME_WEIGHT] = NLA_POLICY_MIN(NLA_U16, 1), + [NL80211_ATTR_TID_CONFIG] = + NLA_POLICY_NESTED(nl80211_attr_tid_config_policy), }; /* policy for the key attributes */ @@ -13259,6 +13268,91 @@ static int nl80211_get_ftm_responder_stats(struct sk_buff *skb, return -ENOBUFS; } +static int parse_tid_conf(struct cfg80211_registered_device *rdev, + struct nlattr *attrs[], + struct ieee80211_tid_cfg *tid_conf, + const u8 *peer) +{ + 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, + NL80211_EXT_FEATURE_PER_TID_NOACK_CONFIG)) + return -ENOTSUPP; + + if (peer && !wiphy_ext_feature_isset(&rdev->wiphy, + NL80211_EXT_FEATURE_PER_STA_NOACK_CONFIG)) + return -ENOTSUPP; + + tid_conf->tid_conf_mask |= IEEE80211_TID_CONF_NOACK; + tid_conf->noack = + nla_get_u8(attrs[NL80211_ATTR_TID_CONFIG_NOACK]); + } + + return 0; +} + +static int nl80211_set_tid_config(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct nlattr *attrs[NL80211_ATTR_TID_CONFIG_MAX + 1]; + struct net_device *dev = info->user_ptr[1]; + struct ieee80211_tid_config *tid_conf; + struct nlattr *tid; + int conf_idx = 0, rem_conf; + u32 num_conf = 0, size_of_conf; + int ret = -EINVAL; + + if (!info->attrs[NL80211_ATTR_TID_CONFIG]) + return -EINVAL; + + if (!rdev->ops->set_tid_config) + return -EOPNOTSUPP; + + nla_for_each_nested(tid, info->attrs[NL80211_ATTR_TID_CONFIG], + rem_conf) + num_conf++; + + size_of_conf = sizeof(struct ieee80211_tid_config) + + num_conf * sizeof(struct ieee80211_tid_cfg); + + tid_conf = kzalloc(size_of_conf, GFP_KERNEL); + if (!tid_conf) + return -ENOMEM; + + tid_conf->n_tid_conf = num_conf; + + if (info->attrs[NL80211_ATTR_MAC]) + tid_conf->peer = nla_data(info->attrs[NL80211_ATTR_MAC]); + else + tid_conf->peer = NULL; + + nla_for_each_nested(tid, info->attrs[NL80211_ATTR_TID_CONFIG], + rem_conf) { + ret = nla_parse_nested(attrs, NL80211_ATTR_TID_CONFIG_MAX, tid, + NULL, NULL); + + if (ret) + return ret; + + if (!attrs[NL80211_ATTR_TID_CONFIG_TID]) + return -EINVAL; + + ret = parse_tid_conf(rdev, attrs, &tid_conf->tid_conf[conf_idx], + tid_conf->peer); + if (ret) + goto bad_tid_conf; + + conf_idx++; + } + + ret = rdev_set_tid_config(rdev, dev, tid_conf); + +bad_tid_conf: + kfree(tid_conf); + return ret; +} + #define NL80211_FLAG_NEED_WIPHY 0x01 #define NL80211_FLAG_NEED_NETDEV 0x02 #define NL80211_FLAG_NEED_RTNL 0x04 @@ -14193,6 +14287,14 @@ static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb, .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, + { + .cmd = NL80211_CMD_SET_TID_CONFIG, + .doit = nl80211_set_tid_config, + .policy = nl80211_policy, + .flags = GENL_UNS_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, + }, }; static struct genl_family nl80211_fam __ro_after_init = { diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h index 5cb48d1..59e1905 100644 --- a/net/wireless/rdev-ops.h +++ b/net/wireless/rdev-ops.h @@ -1272,4 +1272,15 @@ static inline int rdev_del_pmk(struct cfg80211_registered_device *rdev, trace_rdev_return_void(&rdev->wiphy); } +static inline int rdev_set_tid_config(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct ieee80211_tid_config *tid_conf) +{ + int ret; + + trace_rdev_set_tid_config(&rdev->wiphy, dev, tid_conf); + ret = rdev->ops->set_tid_config(&rdev->wiphy, dev, tid_conf); + trace_rdev_return_int(&rdev->wiphy, ret); + return ret; +} #endif /* __CFG80211_RDEV_OPS */ diff --git a/net/wireless/trace.h b/net/wireless/trace.h index 44b2ce1..186de1f 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -3362,6 +3362,24 @@ WIPHY_PR_ARG, WDEV_PR_ARG, (unsigned long long)__entry->cookie) ); + +TRACE_EVENT(rdev_set_tid_config, + TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, + struct ieee80211_tid_config *tid_conf), + TP_ARGS(wiphy, netdev, tid_conf), + TP_STRUCT__entry( + WIPHY_ENTRY + NETDEV_ENTRY + MAC_ENTRY(peer) + ), + TP_fast_assign( + WIPHY_ASSIGN; + NETDEV_ASSIGN; + MAC_ASSIGN(peer, tid_conf->peer); + ), + TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", peer: " MAC_PR_FMT, + WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer)) +); #endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */ #undef TRACE_INCLUDE_PATH -- 1.7.9.5 _______________________________________________ ath10k mailing list [email protected] http://lists.infradead.org/mailman/listinfo/ath10k
