LinuxLists.cc - [PATCHv6 0/9] cfg80211/mac80211: Add support for TID specific configuration

2019-06-18 06:47:49

by Tamizh chelvam

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Subject: [PATCHv6 0/9] cfg80211/mac80211: Add support for TID specific configuration

Add infrastructure to support per TID configurations like noack policy,
retry count, AMPDU control(disable/enable), RTSCTS control(enable/disable)
and TX rate mask configurations.
This will be useful for the driver which can supports data TID
specific configuration rather than phy level configurations.
Here NL80211_CMD_SET_TID_CONFIG added to support this operation by
accepting TID configuration.
This command can accept STA mac addreess to make the configuration
station specific rather than applying to all the connected stations
to the netdev.
And this nested command configuration can accept multiple number of
data TID specific configuration in a single command,
enum ieee80211_tid_conf_mask used to notify the driver that which
configuration got modified for the TID.

Tamizh chelvam (9):
nl80211: New netlink command for TID specific configuration
nl80211: Add new netlink attribute for TID speicific retry count
nl80211: Add netlink attribute for AMPDU aggregation enable/disable
nl80211: Add netlink attribute to enable/disable RTS_CTS
nl80211: Add netlink attribute to configure TID specific tx rate
mac80211: Add api to support configuring TID specific configuration
ath10k: Add wmi command support for station specific TID config
ath10k: Add new api to support TID specific configuration
ath10k: Add extended TID configuration support

v6:
* Addressed Johannes comments.

v5:
* Fixed possible memleak of 'tid_conf' in nl80211_set_tid_config.

v4:
* Fixed kbuild warnings.

v3:
* Modified "nl80211: Add netlink attribute to configure TID specific tx rate" patch
to accept multiple TX rate configuration at a time.
* Modified noack and ampdu variable data type to int in
"mac80211: Add api to support configuring TID specific configuration" patch to store
default configuration.
* Modified "ath10k: Add new api to support TID specific configuration" patch to handle
default values for noack and ampdu. And added sta pointer sanity check in
ath10k_mac_tid_bitrate_config function.
* Fixed "ath10k: Add extended TID configuration support" wmi command parameters
assigned part.

v2:
* Added support to accept multiple TID configuration
* Added support to configure TX rate and RTSCTS control

drivers/net/wireless/ath/ath10k/core.c | 4 +
drivers/net/wireless/ath/ath10k/core.h | 6 +
drivers/net/wireless/ath/ath10k/mac.c | 681 +++++++++++++++++++++++++----
drivers/net/wireless/ath/ath10k/wmi-ops.h | 19 +
drivers/net/wireless/ath/ath10k/wmi.c | 35 ++
drivers/net/wireless/ath/ath10k/wmi.h | 72 +++
include/net/cfg80211.h | 57 +++
include/net/mac80211.h | 38 ++
include/uapi/linux/nl80211.h | 188 ++++++++
net/mac80211/cfg.c | 28 ++
net/mac80211/driver-ops.h | 15 +
net/wireless/nl80211.c | 284 +++++++++++-
net/wireless/rdev-ops.h | 12 +
net/wireless/trace.h | 17 +
14 files changed, 1371 insertions(+), 85 deletions(-)

--
1.7.9.5

2019-06-18 06:47:49

by Tamizh chelvam

[permalink] [raw]

Subject: [PATCHv6 7/9] ath10k: Add wmi command support for station specific TID config

This patch adds WMI interface to configure station specific
TID configuration . Host needs to send station's MAC address
along with TID number and its configuration to target through
WMI_10_4_PER_PEER_PER_TID_CONFIG_CMDID.

WMI_SERVICE_PEER_TID_CONFIGS_SUPPORT flag is added to advertise
this support.

Testing:
* Tested HW: QCA9888
* Tested FW: 10.4-3.5.1-00052

Signed-off-by: Tamizh chelvam <[email protected]>
---
drivers/net/wireless/ath/ath10k/wmi-ops.h | 19 +++++++++++
drivers/net/wireless/ath/ath10k/wmi.c | 32 ++++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi.h | 52 +++++++++++++++++++++++++++++
3 files changed, 103 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/wmi-ops.h b/drivers/net/wireless/ath/ath10k/wmi-ops.h
index 1491c25..796badf 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-ops.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-ops.h
@@ -216,6 +216,8 @@ struct wmi_ops {
struct sk_buff *(*gen_bb_timing)
(struct ath10k *ar,
const struct wmi_bb_timing_cfg_arg *arg);
+ struct sk_buff *(*gen_per_peer_per_tid_cfg)(struct ath10k *ar,
+ const struct wmi_per_peer_per_tid_cfg_arg *arg);

};

@@ -1616,4 +1618,21 @@ struct wmi_ops {
return ath10k_wmi_cmd_send(ar, skb,
ar->wmi.cmd->set_bb_timing_cmdid);
}
+
+static inline int
+ath10k_wmi_set_per_peer_per_tid_cfg(struct ath10k *ar,
+ const struct wmi_per_peer_per_tid_cfg_arg *arg)
+{
+ struct sk_buff *skb;
+
+ if (!ar->wmi.ops->gen_per_peer_per_tid_cfg)
+ return -EOPNOTSUPP;
+
+ skb = ar->wmi.ops->gen_per_peer_per_tid_cfg(ar, arg);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ return ath10k_wmi_cmd_send(ar, skb,
+ ar->wmi.cmd->per_peer_per_tid_config_cmdid);
+}
#endif
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 98a90e4..6b1c70d 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -740,6 +740,7 @@
.tdls_peer_update_cmdid = WMI_10_4_TDLS_PEER_UPDATE_CMDID,
.tdls_set_offchan_mode_cmdid = WMI_10_4_TDLS_SET_OFFCHAN_MODE_CMDID,
.radar_found_cmdid = WMI_10_4_RADAR_FOUND_CMDID,
+ .per_peer_per_tid_config_cmdid = WMI_10_4_PER_PEER_PER_TID_CONFIG_CMDID,
};

/* MAIN WMI VDEV param map */
@@ -8880,6 +8881,36 @@ static u32 ath10k_wmi_prepare_peer_qos(u8 uapsd_queues, u8 sp)
}

static struct sk_buff *
+ath10k_wmi_10_4_gen_per_peer_per_tid_cfg(struct ath10k *ar,
+ const struct wmi_per_peer_per_tid_cfg_arg *arg)
+{
+ struct wmi_peer_per_tid_cfg_cmd *cmd;
+ struct sk_buff *skb;
+
+ skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd));
+ if (!skb)
+ return ERR_PTR(-ENOMEM);
+
+ memset(skb->data, 0, sizeof(*cmd));
+
+ cmd = (struct wmi_peer_per_tid_cfg_cmd *)skb->data;
+ cmd->vdev_id = cpu_to_le32(arg->vdev_id);
+ ether_addr_copy(cmd->peer_macaddr.addr, arg->peer_macaddr.addr);
+ cmd->tid = cpu_to_le32(arg->tid);
+ cmd->ack_policy = cpu_to_le32(arg->ack_policy);
+ cmd->aggr_control = cpu_to_le32(arg->aggr_control);
+ cmd->rate_control = cpu_to_le32(arg->rate_ctrl);
+ cmd->retry_count = cpu_to_le32(arg->retry_count);
+ cmd->rcode_flags = cpu_to_le32(arg->rcode_flags);
+
+ ath10k_dbg(ar, ATH10K_DBG_WMI,
+ "wmi noack tid %d vdev id %d ack_policy %d aggr %u rate_ctrl %u rcflag %u retry_count %d mac_addr %pM\n",
+ arg->tid, arg->vdev_id, arg->ack_policy, arg->aggr_control, arg->rate_ctrl,
+ arg->rcode_flags, arg->retry_count, arg->peer_macaddr.addr);
+ return skb;
+}
+
+static struct sk_buff *
ath10k_wmi_op_gen_echo(struct ath10k *ar, u32 value)
{
struct wmi_echo_cmd *cmd;
@@ -9288,6 +9319,7 @@ static u32 ath10k_wmi_prepare_peer_qos(u8 uapsd_queues, u8 sp)
.gen_pdev_get_tpc_table_cmdid =
ath10k_wmi_10_4_op_gen_pdev_get_tpc_table_cmdid,
.gen_radar_found = ath10k_wmi_10_4_gen_radar_found,
+ .gen_per_peer_per_tid_cfg = ath10k_wmi_10_4_gen_per_peer_per_tid_cfg,

/* shared with 10.2 */
.pull_echo_ev = ath10k_wmi_op_pull_echo_ev,
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index e1c40bb..41aaddf 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -200,6 +200,7 @@ enum wmi_service {
WMI_SERVICE_RTT_RESPONDER_ROLE,
WMI_SERVICE_PER_PACKET_SW_ENCRYPT,
WMI_SERVICE_REPORT_AIRTIME,
+ WMI_SERVICE_PEER_TID_CONFIGS_SUPPORT,

/* Remember to add the new value to wmi_service_name()! */

@@ -491,6 +492,7 @@ static inline char *wmi_service_name(enum wmi_service service_id)
SVCSTR(WMI_SERVICE_RTT_RESPONDER_ROLE);
SVCSTR(WMI_SERVICE_PER_PACKET_SW_ENCRYPT);
SVCSTR(WMI_SERVICE_REPORT_AIRTIME);
+ SVCSTR(WMI_SERVICE_PEER_TID_CONFIGS_SUPPORT);

case WMI_SERVICE_MAX:
return NULL;
@@ -818,6 +820,8 @@ static inline void wmi_10_4_svc_map(const __le32 *in, unsigned long *out,
WMI_SERVICE_PER_PACKET_SW_ENCRYPT, len);
SVCMAP(WMI_10_4_SERVICE_REPORT_AIRTIME,
WMI_SERVICE_REPORT_AIRTIME, len);
+ SVCMAP(WMI_10_4_SERVICE_PEER_TID_CONFIGS_SUPPORT,
+ WMI_SERVICE_PEER_TID_CONFIGS_SUPPORT, len);
}

#undef SVCMAP
@@ -1019,6 +1023,7 @@ struct wmi_cmd_map {
u32 tdls_set_offchan_mode_cmdid;
u32 radar_found_cmdid;
u32 set_bb_timing_cmdid;
+ u32 per_peer_per_tid_config_cmdid;
};

/*
@@ -1860,6 +1865,8 @@ enum wmi_10_4_cmd_id {
WMI_10_4_PDEV_SET_BRIDGE_MACADDR_CMDID,
WMI_10_4_ATF_GROUP_WMM_AC_CONFIG_REQUEST_CMDID,
WMI_10_4_RADAR_FOUND_CMDID,
+ WMI_10_4_PEER_CFR_CAPTURE_CMDID,
+ WMI_10_4_PER_PEER_PER_TID_CONFIG_CMDID,
WMI_10_4_PDEV_UTF_CMDID = WMI_10_4_END_CMDID - 1,
};

@@ -7164,6 +7171,51 @@ struct wmi_tdls_peer_event {
__le32 vdev_id;
} __packed;

+enum wmi_tid_aggr_control_conf {
+ WMI_TID_CONFIG_AGGR_CONTROL_IGNORE,
+ WMI_TID_CONFIG_AGGR_CONTROL_ENABLE,
+ WMI_TID_CONFIG_AGGR_CONTROL_DISABLE,
+};
+
+enum wmi_noack_tid_conf {
+ WMI_NOACK_TID_CONFIG_IGNORE_ACK_POLICY,
+ WMI_PEER_TID_CONFIG_ACK,
+ WMI_PEER_TID_CONFIG_NOACK,
+};
+
+enum wmi_tid_rate_ctrl_conf {
+ WMI_TID_CONFIG_RATE_CONTROL_IGNORE,
+ WMI_TID_CONFIG_RATE_CONTROL_AUTO,
+ WMI_TID_CONFIG_RATE_CONTROL_FIXED_RATE,
+ WMI_TID_CONFIG_RATE_CONTROL_DEFAULT_LOWEST_RATE,
+};
+
+struct wmi_per_peer_per_tid_cfg_arg {
+ u32 vdev_id;
+ struct wmi_mac_addr peer_macaddr;
+ u32 tid;
+ enum wmi_noack_tid_conf ack_policy;
+ enum wmi_tid_aggr_control_conf aggr_control;
+ u8 rate_ctrl;
+ u32 retry_count;
+ u32 rcode_flags;
+};
+
+struct wmi_peer_per_tid_cfg_cmd {
+ __le32 vdev_id;
+ struct wmi_mac_addr peer_macaddr;
+ __le32 tid;
+
+ /* see enum wmi_noack_tid_conf */
+ __le32 ack_policy;
+ /* see enum wmi_tid_aggr_control_conf */
+ __le32 aggr_control;
+ /* see enum wmi_tid_rate_ctrl_conf */
+ __le32 rate_control;
+ __le32 rcode_flags;
+ __le32 retry_count;
+} __packed;
+
enum wmi_txbf_conf {
WMI_TXBF_CONF_UNSUPPORTED,
WMI_TXBF_CONF_BEFORE_ASSOC,
--
1.7.9.5

2019-06-18 06:47:49

by Tamizh chelvam

[permalink] [raw]

Subject: [PATCHv6 5/9] nl80211: Add netlink attribute to configure TID specific tx rate

Introduce NL80211_TID_ATTR_CONFIG_TX_RATES in nl80211_tid_attr_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_TID_ATTR_CONFIG_TID attribute. TX bitrate mask values passed
in NL80211_ATTR_TX_RATES attribute and NL80211_TID_ATTR_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 | 77 ++++++++++++++++++++++++++++++++++++++----
3 files changed, 115 insertions(+), 6 deletions(-)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 1b875d8..4bc6eb7 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -530,6 +530,7 @@ 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),
};

/**
@@ -542,6 +543,8 @@ 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;
@@ -551,6 +554,8 @@ 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 df4e07d..04f253d 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -4649,6 +4649,18 @@ enum nl80211_tx_power_setting {
};

/**
+ * 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 - TID config state
* @NL80211_TID_CONFIG_DEFAULT: Default config for the TID
* @NL80211_TID_CONFIG_ENABLE: Enable config for the TID
@@ -4742,6 +4754,25 @@ 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_TID_ATTR_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_TID_ATTR_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_tid_attr_config {
__NL80211_TID_ATTR_INVALID,
@@ -4752,6 +4783,8 @@ enum nl80211_tid_attr_config {
NL80211_TID_ATTR_CONFIG_RETRY_LONG,
NL80211_TID_ATTR_CONFIG_AMPDU_CTRL,
NL80211_TID_ATTR_CONFIG_RTSCTS_CTRL,
+ NL80211_TID_ATTR_CONFIG_TX_RATES_TYPE,
+ NL80211_TID_ATTR_CONFIG_TX_RATES,

/* keep last */
__NL80211_TID_ATTR_CONFIG_AFTER_LAST,
@@ -5585,6 +5618,10 @@ 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.
@@ -5639,6 +5676,8 @@ 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 370c483..a1a8c48 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -281,6 +281,15 @@ 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_tid_attr_config_policy[NL80211_TID_ATTR_CONFIG_MAX + 1] = {
[NL80211_TID_ATTR_CONFIG_TID] = { .type = NLA_U8 },
@@ -293,6 +302,10 @@ static int validate_ie_attr(const struct nlattr *attr,
NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE),
[NL80211_TID_ATTR_CONFIG_RTSCTS_CTRL] =
NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE),
+ [NL80211_TID_ATTR_CONFIG_TX_RATES_TYPE] =
+ NLA_POLICY_MAX(NLA_U8, NL80211_TX_RATE_FIXED),
+ [NL80211_TID_ATTR_CONFIG_TX_RATES] =
+ NLA_POLICY_NESTED(nl80211_txattr_policy),
};

const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
@@ -4147,14 +4160,14 @@ 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;

@@ -4602,7 +4615,9 @@ 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, &params.beacon_rate);
+ err = nl80211_parse_tx_bitrate_mask(info, info->attrs,
+ NL80211_ATTR_TX_RATES,
+ &params.beacon_rate);
if (err)
return err;

@@ -10309,7 +10324,8 @@ 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, info->attrs,
+ NL80211_ATTR_TX_RATES, &mask);
if (err)
return err;

@@ -10902,7 +10918,9 @@ 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, info->attrs,
+ NL80211_ATTR_TX_RATES,
+ &setup.beacon_rate);
if (err)
return err;

@@ -13598,6 +13616,7 @@ static int parse_tid_conf(struct cfg80211_registered_device *rdev,
struct genl_info *info, const u8 *peer)
{
struct netlink_ext_ack *extack = info->extack;
+ int ret;

tid_conf->tid = nla_get_u8(attrs[NL80211_TID_ATTR_CONFIG_TID]);
if (attrs[NL80211_TID_ATTR_CONFIG_NOACK]) {
@@ -13713,6 +13732,52 @@ static int parse_tid_conf(struct cfg80211_registered_device *rdev,
nla_get_u8(attrs[NL80211_TID_ATTR_CONFIG_RTSCTS_CTRL]);
}

+ if (attrs[NL80211_TID_ATTR_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)) {
+ NL_SET_ERR_MSG_ATTR(extack,
+ attrs[NL80211_TID_ATTR_CONFIG_TX_RATES_TYPE],
+ "TID specific configuration not "
+ "supported");
+ return -EOPNOTSUPP;
+ }
+
+ if (peer &&
+ !wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_PER_STA_TX_BITRATE_MASK)) {
+ NL_SET_ERR_MSG_ATTR(extack,
+ attrs[NL80211_TID_ATTR_CONFIG_TX_RATES_TYPE],
+ "peer specfic TID configuration not "
+ "supported");
+ return -EOPNOTSUPP;
+ }
+
+ idx = NL80211_TID_ATTR_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_TID_ATTR_CONFIG_TX_RATES;
+ ret = nl80211_parse_tx_bitrate_mask(info, attrs, attr,
+ tid_conf->mask);
+ if (ret) {
+ kfree(tid_conf->mask);
+ return ret;
+ }
+ } else {
+ tid_conf->mask = NULL;
+ }
+ }
+
return 0;
}

@@ -13763,7 +13828,7 @@ static int nl80211_set_tid_config(struct sk_buff *skb,

ret = parse_tid_conf(rdev, attrs,
&tid_config->tid_conf[conf_idx],
- tid_config->peer);
+ info, tid_config->peer);
if (ret)
goto bad_tid_conf;

--
1.7.9.5

2019-06-18 06:47:49

by Tamizh chelvam

[permalink] [raw]

Subject: [PATCHv6 9/9] ath10k: Add extended TID configuration support

This patch extend TID configuration support to configure
RTS_CTS control and TX rate limit. Tx rate limit is
similar to auto rate but it will be limited to the user
configured rate mask rather than the station's highest
supported rate mask. Here ext_tid_cfg_bitmap added
to notify the target which extended configuration
parameter has modified(here RTS_CTS).

WMI_10_4_SERVICE_EXT_PEER_TID_CONFIGS_SUPPORT service flag
introduced to advertise this support.

Testing:
* Tested HW: QCA9984
* Tested FW: 10.4-3.9.0.2-00021

Signed-off-by: Tamizh chelvam <[email protected]>
---
drivers/net/wireless/ath/ath10k/core.c | 4 +++
drivers/net/wireless/ath/ath10k/mac.c | 48 ++++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi.c | 9 ++++--
drivers/net/wireless/ath/ath10k/wmi.h | 20 +++++++++++++
4 files changed, 78 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index aff5856..5c021aa 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -2636,6 +2636,10 @@ int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode,
if (test_bit(WMI_SERVICE_REPORT_AIRTIME, ar->wmi.svc_map))
val |= WMI_10_4_REPORT_AIRTIME;

+ if (test_bit(WMI_SERVICE_EXT_PEER_TID_CONFIGS_SUPPORT,
+ ar->wmi.svc_map))
+ val |= WMI_10_4_EXT_PEER_TID_CONFIGS_SUPPORT;
+
status = ath10k_mac_ext_resource_config(ar, val);
if (status) {
ath10k_err(ar,
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 0ce9720..79e5ec7 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2950,6 +2950,12 @@ static int ath10k_new_peer_tid_config(struct ath10k *ar,
arg.aggr_control = vif->ampdu[i];
arg.rate_ctrl = vif->rate_ctrl[i];
arg.rcode_flags = vif->rate_code[i];
+ if (vif->rtscts[i])
+ arg.ext_tid_cfg_bitmap =
+ WMI_EXT_TID_RTS_CTS_CONFIG;
+ else
+ arg.ext_tid_cfg_bitmap = 0;
+ arg.rtscts_ctrl = vif->rtscts[i];
}

if (vif->noack[i]) {
@@ -6560,6 +6566,10 @@ static int ath10k_mac_validate_rate_mask(struct ath10k *ar,

if (txrate_type == NL80211_TX_RATE_FIXED)
*rate_ctrl = WMI_TID_CONFIG_RATE_CONTROL_FIXED_RATE;
+ else if (txrate_type == NL80211_TX_RATE_LIMITED &&
+ (test_bit(WMI_SERVICE_EXT_PEER_TID_CONFIGS_SUPPORT,
+ ar->wmi.svc_map)))
+ *rate_ctrl = WMI_PEER_TID_CONFIG_RATE_UPPER_CAP;
else
return -EOPNOTSUPP;
return 0;
@@ -6628,6 +6638,14 @@ static int ath10k_mac_validate_rate_mask(struct ath10k *ar,
}
kfree(tid_conf->mask);
}
+
+ if (changed & IEEE80211_TID_CONF_RTSCTS) {
+ if (tid_conf->rtscts)
+ arg->rtscts_ctrl = tid_conf->rtscts - 1;
+ else
+ arg->rtscts_ctrl = WMI_TID_CONFIG_RTSCTS_CONTROL_ENABLE;
+ arg->ext_tid_cfg_bitmap = WMI_EXT_TID_RTS_CTS_CONFIG;
+ }
}

static void ath10k_sta_tid_cfg_wk(struct work_struct *wk)
@@ -6708,6 +6726,18 @@ static void ath10k_sta_tid_cfg_wk(struct work_struct *wk)
}
}

+ if (changed & IEEE80211_TID_CONF_RTSCTS) {
+ if (sta->rtscts[i]) {
+ arg.rtscts_ctrl = 0;
+ arg.ext_tid_cfg_bitmap = 0;
+ } else {
+ arg.rtscts_ctrl = vif->rtscts[i] - 1;
+ arg.ext_tid_cfg_bitmap =
+ WMI_EXT_TID_RTS_CTS_CONFIG;
+ config_apply = true;
+ }
+ }
+
arg.tid = i;

if (config_apply) {
@@ -8403,6 +8433,13 @@ static int ath10k_mac_op_set_tid_config(struct ieee80211_hw *hw,
arg.rate_ctrl = 0;
arg.rcode_flags = 0;
}
+
+ if (changed & IEEE80211_TID_CONF_RTSCTS) {
+ sta->rtscts[arg.tid] =
+ tid_config->tid_conf[i].rtscts;
+ arg.rtscts_ctrl = 0;
+ arg.ext_tid_cfg_bitmap = 0;
+ }
} else {
arvif->tid_conf_changed[arg.tid] |= changed;

@@ -8422,6 +8459,10 @@ static int ath10k_mac_op_set_tid_config(struct ieee80211_hw *hw,
vif->rate_ctrl[arg.tid] = arg.rate_ctrl;
vif->rate_code[arg.tid] = arg.rcode_flags;
}
+
+ if (changed & IEEE80211_TID_CONF_RTSCTS)
+ vif->rtscts[arg.tid] =
+ tid_config->tid_conf[i].rtscts;
}
}

@@ -9168,6 +9209,13 @@ int ath10k_mac_register(struct ath10k *ar)
ar->ops->set_tid_config = NULL;
ar->hw->wiphy->flags &= ~WIPHY_FLAG_HAS_MAX_DATA_RETRY_COUNT;
}
+
+ if (test_bit(WMI_SERVICE_EXT_PEER_TID_CONFIGS_SUPPORT, ar->wmi.svc_map)) {
+ wiphy_ext_feature_set(ar->hw->wiphy,
+ NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL);
+ wiphy_ext_feature_set(ar->hw->wiphy,
+ NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL);
+ }
/*
* on LL hardware queues are managed entirely by the FW
* so we only advertise to mac we can do the queues thing
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 6b1c70d..544a621 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -8902,11 +8902,14 @@ static u32 ath10k_wmi_prepare_peer_qos(u8 uapsd_queues, u8 sp)
cmd->rate_control = cpu_to_le32(arg->rate_ctrl);
cmd->retry_count = cpu_to_le32(arg->retry_count);
cmd->rcode_flags = cpu_to_le32(arg->rcode_flags);
+ cmd->ext_tid_cfg_bitmap = cpu_to_le32(arg->ext_tid_cfg_bitmap);
+ cmd->rtscts_ctrl = cpu_to_le32(arg->rtscts_ctrl);

ath10k_dbg(ar, ATH10K_DBG_WMI,
- "wmi noack tid %d vdev id %d ack_policy %d aggr %u rate_ctrl %u rcflag %u retry_count %d mac_addr %pM\n",
- arg->tid, arg->vdev_id, arg->ack_policy, arg->aggr_control, arg->rate_ctrl,
- arg->rcode_flags, arg->retry_count, arg->peer_macaddr.addr);
+ "wmi noack tid %d vdev id %d ack_policy %d aggr %u rate_ctrl %u rcflag %u retry_count %d rtscts %d ext_tid_cfg_bitmap %d mac_addr %pM\n",
+ arg->tid, arg->vdev_id, arg->ack_policy, arg->aggr_control,
+ arg->rate_ctrl, arg->rcode_flags, arg->retry_count, arg->rtscts_ctrl,
+ arg->ext_tid_cfg_bitmap, arg->peer_macaddr.addr);
return skb;
}

diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 41aaddf..cec3731 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -201,6 +201,7 @@ enum wmi_service {
WMI_SERVICE_PER_PACKET_SW_ENCRYPT,
WMI_SERVICE_REPORT_AIRTIME,
WMI_SERVICE_PEER_TID_CONFIGS_SUPPORT,
+ WMI_SERVICE_EXT_PEER_TID_CONFIGS_SUPPORT,

/* Remember to add the new value to wmi_service_name()! */

@@ -493,6 +494,7 @@ static inline char *wmi_service_name(enum wmi_service service_id)
SVCSTR(WMI_SERVICE_PER_PACKET_SW_ENCRYPT);
SVCSTR(WMI_SERVICE_REPORT_AIRTIME);
SVCSTR(WMI_SERVICE_PEER_TID_CONFIGS_SUPPORT);
+ SVCSTR(WMI_SERVICE_EXT_PEER_TID_CONFIGS_SUPPORT);

case WMI_SERVICE_MAX:
return NULL;
@@ -822,6 +824,8 @@ static inline void wmi_10_4_svc_map(const __le32 *in, unsigned long *out,
WMI_SERVICE_REPORT_AIRTIME, len);
SVCMAP(WMI_10_4_SERVICE_PEER_TID_CONFIGS_SUPPORT,
WMI_SERVICE_PEER_TID_CONFIGS_SUPPORT, len);
+ SVCMAP(WMI_10_4_SERVICE_EXT_PEER_TID_CONFIGS_SUPPORT,
+ WMI_SERVICE_EXT_PEER_TID_CONFIGS_SUPPORT, len);
}

#undef SVCMAP
@@ -7188,6 +7192,16 @@ enum wmi_tid_rate_ctrl_conf {
WMI_TID_CONFIG_RATE_CONTROL_AUTO,
WMI_TID_CONFIG_RATE_CONTROL_FIXED_RATE,
WMI_TID_CONFIG_RATE_CONTROL_DEFAULT_LOWEST_RATE,
+ WMI_PEER_TID_CONFIG_RATE_UPPER_CAP,
+};
+
+enum wmi_tid_rtscts_control_conf {
+ WMI_TID_CONFIG_RTSCTS_CONTROL_ENABLE,
+ WMI_TID_CONFIG_RTSCTS_CONTROL_DISABLE,
+};
+
+enum wmi_ext_tid_config_map {
+ WMI_EXT_TID_RTS_CTS_CONFIG = BIT(0),
};

struct wmi_per_peer_per_tid_cfg_arg {
@@ -7199,6 +7213,8 @@ struct wmi_per_peer_per_tid_cfg_arg {
u8 rate_ctrl;
u32 retry_count;
u32 rcode_flags;
+ u32 ext_tid_cfg_bitmap;
+ u32 rtscts_ctrl;
};

struct wmi_peer_per_tid_cfg_cmd {
@@ -7214,6 +7230,10 @@ struct wmi_peer_per_tid_cfg_cmd {
__le32 rate_control;
__le32 rcode_flags;
__le32 retry_count;
+ /* See enum wmi_ext_tid_config_map */
+ __le32 ext_tid_cfg_bitmap;
+ /* see enum wmi_tid_rtscts_control_conf */
+ __le32 rtscts_ctrl;
} __packed;

enum wmi_txbf_conf {
--
1.7.9.5

2019-06-18 06:47:50

by Tamizh chelvam

[permalink] [raw]

Subject: [PATCHv6 8/9] ath10k: Add new api to support TID specific configuration

This patch add ops for set_tid_config to support TID
specific configuration. STA information along with the
TID config change mask to notify driver that which configuration
needs to be applied for this current command.
If the STA info not available in the command then the
configuration will be applied for all connected stations
in the vif. TID specific noack configuration requires
aggregation disabled and rate for the data TID packets
should be basic rates. So, if the TID already configured
with noack policy then driver will ignore the aggregation
or TX rate related configuration for the same data TID.
In TX rate configuration should be applied with highest
preamble configuration(HT rates should not be applied
for the station which supports vht rates).

Vif specific TID configuration will be applied for all
the connected stations except for the station which
already applied with the same configuration for the TID
through station specific command. Newly connecting stations
will be applied with vif TID configuration which will be stored
in ieee80211_vif.

Testing:
* Tested HW: QCA9888
* Tested FW: 10.4-3.5.1-00052

Signed-off-by: Tamizh chelvam <[email protected]>
---
drivers/net/wireless/ath/ath10k/core.h | 6 +
drivers/net/wireless/ath/ath10k/mac.c | 633 ++++++++++++++++++++++++++++----
2 files changed, 559 insertions(+), 80 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index e35aae5..3d1b06a 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -82,6 +82,8 @@
/* Default Airtime weight multipler (Tuned for multiclient performance) */
#define ATH10K_AIRTIME_WEIGHT_MULTIPLIER 4

+#define ATH10K_MAX_RETRY_COUNT 29
+
struct ath10k;

static inline const char *ath10k_bus_str(enum ath10k_bus bus)
@@ -504,6 +506,7 @@ struct ath10k_sta {
#endif
/* Protected with ar->data_lock */
u32 peer_ps_state;
+ struct work_struct tid_config_wk;
};

#define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5 * HZ)
@@ -571,6 +574,9 @@ struct ath10k_vif {
struct work_struct ap_csa_work;
struct delayed_work connection_loss_work;
struct cfg80211_bitrate_mask bitrate_mask;
+ u32 tid_conf_changed[IEEE80211_TID_MAX];
+
+ struct ieee80211_tid_config *tid_config;
};

struct ath10k_vif_iter {
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 9c703d2..0ce9720 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2930,6 +2930,59 @@ static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
cancel_delayed_work_sync(&arvif->connection_loss_work);
}

+static int ath10k_new_peer_tid_config(struct ath10k *ar,
+ struct ieee80211_sta *sta,
+ struct ath10k_vif *arvif)
+{
+ struct wmi_per_peer_per_tid_cfg_arg arg = {};
+ struct ieee80211_vif *vif = arvif->vif;
+ bool config_apply;
+ int ret, i;
+
+ for (i = 0; i < IEEE80211_TID_MAX; i++) {
+ config_apply = false;
+ if (vif->retry_long[i] || vif->ampdu[i] ||
+ vif->rate_code[i]) {
+ config_apply = true;
+ arg.tid = i;
+ arg.vdev_id = arvif->vdev_id;
+ arg.retry_count = vif->retry_long[i];
+ arg.aggr_control = vif->ampdu[i];
+ arg.rate_ctrl = vif->rate_ctrl[i];
+ arg.rcode_flags = vif->rate_code[i];
+ }
+
+ if (vif->noack[i]) {
+ arg.ack_policy = vif->noack[i];
+ arg.rate_ctrl =
+ WMI_TID_CONFIG_RATE_CONTROL_DEFAULT_LOWEST_RATE;
+ arg.aggr_control = WMI_TID_CONFIG_AGGR_CONTROL_DISABLE;
+ config_apply = true;
+ }
+
+ /* Assign default value(-1) to newly connected station.
+ * This is to identify station specific tid configuration not
+ * configured for the station.
+ */
+ sta->retry_long[i] = -1;
+ sta->noack[i] = -1;
+ sta->ampdu[i] = -1;
+
+ if (!config_apply)
+ continue;
+
+ ether_addr_copy(arg.peer_macaddr.addr, sta->addr);
+ ret = ath10k_wmi_set_per_peer_per_tid_cfg(ar, &arg);
+ if (ret) {
+ ath10k_warn(ar, "failed to set per tid retry/aggr config for sta %pM: %d\n",
+ sta->addr, ret);
+ return ret;
+ }
+ memset(&arg, 0, sizeof(arg));
+ }
+ return 0;
+}
+
static int ath10k_station_assoc(struct ath10k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
@@ -2995,7 +3048,10 @@ static int ath10k_station_assoc(struct ath10k *ar,
}
}

- return ret;
+ if (!test_bit(WMI_SERVICE_PEER_TID_CONFIGS_SUPPORT, ar->wmi.svc_map))
+ return ret;
+
+ return ath10k_new_peer_tid_config(ar, sta, arvif);
}

static int ath10k_station_disassoc(struct ath10k *ar,
@@ -6350,6 +6406,340 @@ static void ath10k_mac_dec_num_stations(struct ath10k_vif *arvif,
ar->num_stations--;
}

+struct ath10k_mac_iter_tid_conf_data {
+ struct ieee80211_vif *curr_vif;
+ struct ath10k *ar;
+};
+
+static bool
+ath10k_mac_bitrate_mask_has_single_rate(struct ath10k *ar,
+ enum nl80211_band band,
+ const struct cfg80211_bitrate_mask *mask)
+{
+ int num_rates = 0;
+ int i;
+
+ num_rates += hweight32(mask->control[band].legacy);
+
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++)
+ num_rates += hweight8(mask->control[band].ht_mcs[i]);
+
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++)
+ num_rates += hweight16(mask->control[band].vht_mcs[i]);
+
+ return num_rates == 1;
+}
+
+static int
+ath10k_mac_bitrate_mask_get_single_rate(struct ath10k *ar,
+ enum nl80211_band band,
+ const struct cfg80211_bitrate_mask *mask,
+ u8 *rate, u8 *nss)
+{
+ int rate_idx;
+ int i;
+ u16 bitrate;
+ u8 preamble;
+ u8 hw_rate;
+
+ if (hweight32(mask->control[band].legacy) == 1) {
+ rate_idx = ffs(mask->control[band].legacy) - 1;
+
+ if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY)
+ rate_idx += ATH10K_MAC_FIRST_OFDM_RATE_IDX;
+
+ hw_rate = ath10k_wmi_legacy_rates[rate_idx].hw_value;
+ bitrate = ath10k_wmi_legacy_rates[rate_idx].bitrate;
+
+ if (ath10k_mac_bitrate_is_cck(bitrate))
+ preamble = WMI_RATE_PREAMBLE_CCK;
+ else
+ preamble = WMI_RATE_PREAMBLE_OFDM;
+
+ *nss = 1;
+ *rate = preamble << 6 |
+ (*nss - 1) << 4 |
+ hw_rate << 0;
+
+ return 0;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
+ if (hweight8(mask->control[band].ht_mcs[i]) == 1) {
+ *nss = i + 1;
+ *rate = WMI_RATE_PREAMBLE_HT << 6 |
+ (*nss - 1) << 4 |
+ (ffs(mask->control[band].ht_mcs[i]) - 1);
+
+ return 0;
+ }
+ }
+
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
+ if (hweight16(mask->control[band].vht_mcs[i]) == 1) {
+ *nss = i + 1;
+ *rate = WMI_RATE_PREAMBLE_VHT << 6 |
+ (*nss - 1) << 4 |
+ (ffs(mask->control[band].vht_mcs[i]) - 1);
+
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int ath10k_mac_validate_rate_mask(struct ath10k *ar,
+ struct ieee80211_sta *sta,
+ u32 rate_ctrl_flag, u8 nss)
+{
+ if (nss > sta->rx_nss) {
+ ath10k_warn(ar, "Invalid nss field, configured %u limit %u\n",
+ nss, sta->rx_nss);
+ return -EINVAL;
+ }
+
+ if (ATH10K_HW_PREAMBLE(rate_ctrl_flag) == WMI_RATE_PREAMBLE_VHT) {
+ if (!sta->vht_cap.vht_supported) {
+ ath10k_warn(ar, "Invalid VHT rate for sta %pM\n",
+ sta->addr);
+ return -EINVAL;
+ }
+ } else if (ATH10K_HW_PREAMBLE(rate_ctrl_flag) == WMI_RATE_PREAMBLE_HT) {
+ if (!sta->ht_cap.ht_supported || sta->vht_cap.vht_supported) {
+ ath10k_warn(ar, "Invalid HT rate for sta %pM\n",
+ sta->addr);
+ return -EINVAL;
+ }
+ } else {
+ if (sta->ht_cap.ht_supported || sta->vht_cap.vht_supported)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+ath10k_mac_tid_bitrate_config(struct ath10k *ar,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ u32 *rate_ctrl_flag, u8 *rate_ctrl,
+ enum nl80211_tx_rate_setting txrate_type,
+ const struct cfg80211_bitrate_mask *mask)
+{
+ struct cfg80211_chan_def def;
+ enum nl80211_band band;
+ u8 nss, rate;
+ int ret;
+
+ if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
+ return -EINVAL;
+
+ if (txrate_type == NL80211_TX_RATE_AUTOMATIC) {
+ *rate_ctrl = WMI_TID_CONFIG_RATE_CONTROL_AUTO;
+ *rate_ctrl_flag = 0;
+ return 0;
+ }
+
+ band = def.chan->band;
+
+ if (!ath10k_mac_bitrate_mask_has_single_rate(ar, band, mask))
+ return -EINVAL;
+
+ ret = ath10k_mac_bitrate_mask_get_single_rate(ar, band, mask,
+ &rate, &nss);
+ if (ret) {
+ ath10k_warn(ar, "failed to get single rate: %d\n",
+ ret);
+ return ret;
+ }
+ *rate_ctrl_flag = rate;
+
+ if (sta && ath10k_mac_validate_rate_mask(ar, sta, *rate_ctrl_flag, nss))
+ return -EINVAL;
+
+ if (txrate_type == NL80211_TX_RATE_FIXED)
+ *rate_ctrl = WMI_TID_CONFIG_RATE_CONTROL_FIXED_RATE;
+ else
+ return -EOPNOTSUPP;
+ return 0;
+}
+
+static void
+ath10k_mac_parse_tid_config(struct ath10k *ar,
+ struct ieee80211_sta *sta,
+ struct ieee80211_vif *vif,
+ struct ieee80211_tid_cfg *tid_conf,
+ struct wmi_per_peer_per_tid_cfg_arg *arg)
+{
+ u8 changed = tid_conf->tid_conf_mask;
+ int ret;
+
+ arg->tid = tid_conf->tid;
+
+ if (changed & IEEE80211_TID_CONF_NOACK) {
+ if (tid_conf->noack == NL80211_TID_CONFIG_ENABLE) {
+ arg->ack_policy = WMI_PEER_TID_CONFIG_NOACK;
+ arg->rate_ctrl =
+ WMI_TID_CONFIG_RATE_CONTROL_DEFAULT_LOWEST_RATE;
+ arg->aggr_control = WMI_TID_CONFIG_AGGR_CONTROL_DISABLE;
+ } else {
+ arg->ack_policy = WMI_PEER_TID_CONFIG_ACK;
+ arg->rate_ctrl = WMI_TID_CONFIG_RATE_CONTROL_AUTO;
+ arg->aggr_control = WMI_TID_CONFIG_AGGR_CONTROL_ENABLE;
+ }
+ }
+
+ if (changed & IEEE80211_TID_CONF_RETRY) {
+ if (tid_conf->retry_long == -1) {
+ if (vif->retry_long[arg->tid])
+ arg->retry_count = vif->retry_long[arg->tid];
+ else
+ arg->retry_count = ATH10K_MAX_RETRY_COUNT + 1;
+ } else {
+ /* firmware expects tx attempt value */
+ arg->retry_count = tid_conf->retry_long + 1;
+ }
+ }
+
+ if (changed & IEEE80211_TID_CONF_AMPDU) {
+ if (tid_conf->ampdu) {
+ arg->aggr_control = tid_conf->ampdu;
+ } else {
+ if (vif->ampdu[arg->tid])
+ arg->aggr_control = vif->ampdu[arg->tid];
+ else
+ arg->aggr_control =
+ WMI_TID_CONFIG_AGGR_CONTROL_DISABLE;
+ }
+ }
+
+ if (changed & IEEE80211_TID_CONF_TX_BITRATE) {
+ ret = ath10k_mac_tid_bitrate_config(ar, vif, sta,
+ &arg->rcode_flags,
+ &arg->rate_ctrl,
+ tid_conf->txrate_type,
+ tid_conf->mask);
+ if (ret) {
+ ath10k_warn(ar, "failed to configure bitrate mask %d\n",
+ ret);
+ arg->rcode_flags = 0;
+ arg->rate_ctrl = 0;
+ }
+ kfree(tid_conf->mask);
+ }
+}
+
+static void ath10k_sta_tid_cfg_wk(struct work_struct *wk)
+{
+ struct wmi_per_peer_per_tid_cfg_arg arg = {};
+ struct ieee80211_vif *vif;
+ struct ieee80211_sta *sta;
+ struct ath10k_sta *arsta;
+ struct ath10k_vif *arvif;
+ struct ath10k *ar;
+ bool config_apply;
+ int ret, i;
+ u8 changed;
+
+ arsta = container_of(wk, struct ath10k_sta, tid_config_wk);
+ sta = container_of((void *)arsta, struct ieee80211_sta, drv_priv);
+ arvif = arsta->arvif;
+ vif = arvif->vif;
+ ar = arvif->ar;
+
+ mutex_lock(&ar->conf_mutex);
+
+ ether_addr_copy(arg.peer_macaddr.addr, sta->addr);
+ for (i = 0; i < IEEE80211_TID_MAX; i++) {
+ config_apply = false;
+ changed = arvif->tid_conf_changed[i];
+
+ if (changed & IEEE80211_TID_CONF_NOACK) {
+ if (sta->noack[i] != -1) {
+ arg.ack_policy = 0;
+ } else {
+ config_apply = true;
+ arg.ack_policy = vif->noack[i];
+ arg.aggr_control = vif->ampdu[i];
+ arg.rate_ctrl = vif->rate_ctrl[i];
+ }
+ }
+
+ if (changed & IEEE80211_TID_CONF_RETRY) {
+ if (sta->retry_long[i] != -1 ||
+ sta->noack[i] == WMI_PEER_TID_CONFIG_NOACK ||
+ vif->noack[i] == WMI_PEER_TID_CONFIG_NOACK) {
+ arg.retry_count = 0;
+ } else {
+ arg.retry_count = vif->retry_long[i];
+ config_apply = true;
+ }
+ }
+
+ if (changed & IEEE80211_TID_CONF_AMPDU) {
+ if (sta->ampdu[i] != -1 ||
+ sta->noack[i] == WMI_PEER_TID_CONFIG_NOACK ||
+ vif->noack[i] == WMI_PEER_TID_CONFIG_NOACK) {
+ arg.aggr_control = 0;
+ } else {
+ arg.aggr_control = vif->ampdu[i];
+ config_apply = true;
+ }
+ }
+
+ if (changed & IEEE80211_TID_CONF_TX_BITRATE) {
+ if (ath10k_mac_validate_rate_mask(ar, sta, vif->rate_code[i],
+ ATH10K_HW_NSS(vif->rate_code[i]))) {
+ arg.rate_ctrl = 0;
+ arg.rcode_flags = 0;
+ }
+
+ if (sta->rate_ctrl[i] >
+ WMI_TID_CONFIG_RATE_CONTROL_AUTO ||
+ sta->noack[i] == WMI_PEER_TID_CONFIG_NOACK ||
+ vif->noack[i] == WMI_PEER_TID_CONFIG_NOACK) {
+ arg.rate_ctrl = 0;
+ arg.rcode_flags = 0;
+ } else {
+ arg.rate_ctrl = vif->rate_ctrl[i];
+ arg.rcode_flags = vif->rate_code[i];
+ config_apply = true;
+ }
+ }
+
+ arg.tid = i;
+
+ if (config_apply) {
+ ret = ath10k_wmi_set_per_peer_per_tid_cfg(ar, &arg);
+ if (ret)
+ ath10k_warn(ar, "failed to set per tid config for sta %pM: %d\n",
+ sta->addr, ret);
+ }
+
+ arg.ack_policy = 0;
+ arg.retry_count = 0;
+ arg.aggr_control = 0;
+ arg.rate_ctrl = 0;
+ arg.rcode_flags = 0;
+ }
+
+ mutex_unlock(&ar->conf_mutex);
+}
+
+static void ath10k_mac_vif_stations_tid_conf(void *data,
+ struct ieee80211_sta *sta)
+{
+ struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
+ struct ath10k_mac_iter_tid_conf_data *iter_data = data;
+ struct ieee80211_vif *sta_vif = arsta->arvif->vif;
+
+ if (sta_vif != iter_data->curr_vif || !sta->wme)
+ return;
+
+ ieee80211_queue_work(iter_data->ar->hw, &arsta->tid_config_wk);
+}
+
static int ath10k_sta_state(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
@@ -6369,6 +6759,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
arsta->arvif = arvif;
arsta->peer_ps_state = WMI_PEER_PS_STATE_DISABLED;
INIT_WORK(&arsta->update_wk, ath10k_sta_rc_update_wk);
+ INIT_WORK(&arsta->tid_config_wk, ath10k_sta_tid_cfg_wk);

for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
ath10k_mac_txq_init(sta->txq[i]);
@@ -6376,8 +6767,10 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,

/* cancel must be done outside the mutex to avoid deadlock */
if ((old_state == IEEE80211_STA_NONE &&
- new_state == IEEE80211_STA_NOTEXIST))
+ new_state == IEEE80211_STA_NOTEXIST)) {
cancel_work_sync(&arsta->update_wk);
+ cancel_work_sync(&arsta->tid_config_wk);
+ }

mutex_lock(&ar->conf_mutex);

@@ -7097,25 +7490,6 @@ static int ath10k_get_survey(struct ieee80211_hw *hw, int idx,
}

static bool
-ath10k_mac_bitrate_mask_has_single_rate(struct ath10k *ar,
- enum nl80211_band band,
- const struct cfg80211_bitrate_mask *mask)
-{
- int num_rates = 0;
- int i;
-
- num_rates += hweight32(mask->control[band].legacy);
-
- for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++)
- num_rates += hweight8(mask->control[band].ht_mcs[i]);
-
- for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++)
- num_rates += hweight16(mask->control[band].vht_mcs[i]);
-
- return num_rates == 1;
-}
-
-static bool
ath10k_mac_bitrate_mask_get_single_nss(struct ath10k *ar,
enum nl80211_band band,
const struct cfg80211_bitrate_mask *mask,
@@ -7164,65 +7538,6 @@ static int ath10k_get_survey(struct ieee80211_hw *hw, int idx,
return true;
}

-static int
-ath10k_mac_bitrate_mask_get_single_rate(struct ath10k *ar,
- enum nl80211_band band,
- const struct cfg80211_bitrate_mask *mask,
- u8 *rate, u8 *nss)
-{
- int rate_idx;
- int i;
- u16 bitrate;
- u8 preamble;
- u8 hw_rate;
-
- if (hweight32(mask->control[band].legacy) == 1) {
- rate_idx = ffs(mask->control[band].legacy) - 1;
-
- if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY)
- rate_idx += ATH10K_MAC_FIRST_OFDM_RATE_IDX;
-
- hw_rate = ath10k_wmi_legacy_rates[rate_idx].hw_value;
- bitrate = ath10k_wmi_legacy_rates[rate_idx].bitrate;
-
- if (ath10k_mac_bitrate_is_cck(bitrate))
- preamble = WMI_RATE_PREAMBLE_CCK;
- else
- preamble = WMI_RATE_PREAMBLE_OFDM;
-
- *nss = 1;
- *rate = preamble << 6 |
- (*nss - 1) << 4 |
- hw_rate << 0;
-
- return 0;
- }
-
- for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
- if (hweight8(mask->control[band].ht_mcs[i]) == 1) {
- *nss = i + 1;
- *rate = WMI_RATE_PREAMBLE_HT << 6 |
- (*nss - 1) << 4 |
- (ffs(mask->control[band].ht_mcs[i]) - 1);
-
- return 0;
- }
- }
-
- for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
- if (hweight16(mask->control[band].vht_mcs[i]) == 1) {
- *nss = i + 1;
- *rate = WMI_RATE_PREAMBLE_VHT << 6 |
- (*nss - 1) << 4 |
- (ffs(mask->control[band].vht_mcs[i]) - 1);
-
- return 0;
- }
- }
-
- return -EINVAL;
-}
-
static int ath10k_mac_set_fixed_rate_params(struct ath10k_vif *arvif,
u8 rate, u8 nss, u8 sgi, u8 ldpc)
{
@@ -7991,6 +8306,140 @@ static void ath10k_sta_statistics(struct ieee80211_hw *hw,
sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
}

+static int ath10k_mac_op_set_tid_config(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct ieee80211_tid_config *tid_config)
+{
+ struct ath10k *ar = hw->priv;
+ struct ath10k_vif *arvif = (void *)vif->drv_priv;
+ struct ath10k_mac_iter_tid_conf_data data = {};
+ struct wmi_per_peer_per_tid_cfg_arg arg = {};
+ int ret, i;
+ u8 changed;
+
+ mutex_lock(&ar->conf_mutex);
+ arg.vdev_id = arvif->vdev_id;
+
+ memset(arvif->tid_conf_changed, 0, sizeof(arvif->tid_conf_changed));
+
+ for (i = 0; i < tid_config->n_tid_conf; i++) {
+ if (tid_config->tid_conf[i].tid >= IEEE80211_TID_MAX)
+ continue;
+
+ ath10k_mac_parse_tid_config(ar, sta, vif,
+ &tid_config->tid_conf[i],
+ &arg);
+ changed = tid_config->tid_conf[i].tid_conf_mask;
+ if (sta) {
+ if (!sta->wme) {
+ ret = -ENOTSUPP;
+ goto exit;
+ }
+
+ if (changed & IEEE80211_TID_CONF_RETRY) {
+ if (sta->noack[arg.tid] == WMI_PEER_TID_CONFIG_NOACK ||
+ vif->noack[arg.tid] == WMI_PEER_TID_CONFIG_NOACK)
+ arg.retry_count = 0;
+ }
+
+ if (changed & IEEE80211_TID_CONF_AMPDU) {
+ if (sta->noack[arg.tid] == WMI_PEER_TID_CONFIG_NOACK ||
+ vif->noack[arg.tid] == WMI_PEER_TID_CONFIG_NOACK)
+ arg.aggr_control = 0;
+ }
+
+ if (changed & IEEE80211_TID_CONF_TX_BITRATE) {
+ if (sta->noack[arg.tid] == WMI_PEER_TID_CONFIG_NOACK ||
+ vif->noack[arg.tid] == WMI_PEER_TID_CONFIG_NOACK) {
+ arg.rate_ctrl = 0;
+ arg.rcode_flags = 0;
+ }
+ }
+
+ ether_addr_copy(arg.peer_macaddr.addr, sta->addr);
+ ret = ath10k_wmi_set_per_peer_per_tid_cfg(ar, &arg);
+ if (ret)
+ goto exit;
+
+ /* Store the configured parameters in success case */
+ if (changed & IEEE80211_TID_CONF_NOACK) {
+ if (tid_config->tid_conf[i].noack ==
+ NL80211_TID_CONFIG_DEFAULT) {
+ sta->noack[arg.tid] = -1;
+ } else {
+ sta->noack[arg.tid] = arg.ack_policy;
+ }
+
+ arg.ack_policy = 0;
+ arg.aggr_control = 0;
+ arg.rate_ctrl = 0;
+ arg.rcode_flags = 0;
+ }
+
+ if (changed & IEEE80211_TID_CONF_RETRY) {
+ if (tid_config->tid_conf[i].retry_long == -1) {
+ sta->retry_long[arg.tid] = -1;
+ } else {
+ sta->retry_long[arg.tid] = arg.retry_count;
+ }
+
+ arg.retry_count = 0;
+ }
+
+ if (changed & IEEE80211_TID_CONF_AMPDU) {
+ if (tid_config->tid_conf[i].ampdu ==
+ NL80211_TID_CONFIG_DEFAULT) {
+ sta->ampdu[arg.tid] = -1;
+ } else {
+ sta->ampdu[arg.tid] = arg.aggr_control;
+ }
+
+ arg.aggr_control = 0;
+ }
+
+ if (changed & IEEE80211_TID_CONF_TX_BITRATE) {
+ sta->rate_ctrl[arg.tid] = arg.rate_ctrl;
+ arg.rate_ctrl = 0;
+ arg.rcode_flags = 0;
+ }
+ } else {
+ arvif->tid_conf_changed[arg.tid] |= changed;
+
+ if (changed & IEEE80211_TID_CONF_NOACK) {
+ vif->noack[arg.tid] = arg.ack_policy;
+ vif->ampdu[arg.tid] = arg.aggr_control;
+ vif->rate_ctrl[arg.tid] = arg.rate_ctrl;
+ }
+
+ if (changed & IEEE80211_TID_CONF_RETRY)
+ vif->retry_long[arg.tid] = arg.retry_count;
+
+ if (changed & IEEE80211_TID_CONF_AMPDU)
+ vif->ampdu[arg.tid] = arg.aggr_control;
+
+ if (changed & IEEE80211_TID_CONF_TX_BITRATE) {
+ vif->rate_ctrl[arg.tid] = arg.rate_ctrl;
+ vif->rate_code[arg.tid] = arg.rcode_flags;
+ }
+ }
+ }
+
+ if (sta)
+ goto exit;
+
+ ret = 0;
+ data.curr_vif = vif;
+ data.ar = ar;
+
+ ieee80211_iterate_stations_atomic(hw, ath10k_mac_vif_stations_tid_conf,
+ &data);
+
+exit:
+ mutex_unlock(&ar->conf_mutex);
+ return ret;
+}
+
static const struct ieee80211_ops ath10k_ops = {
.tx = ath10k_mac_op_tx,
.wake_tx_queue = ath10k_mac_op_wake_tx_queue,
@@ -8033,6 +8482,7 @@ static void ath10k_sta_statistics(struct ieee80211_hw *hw,
.switch_vif_chanctx = ath10k_mac_op_switch_vif_chanctx,
.sta_pre_rcu_remove = ath10k_mac_op_sta_pre_rcu_remove,
.sta_statistics = ath10k_sta_statistics,
+ .set_tid_config = ath10k_mac_op_set_tid_config,

CFG80211_TESTMODE_CMD(ath10k_tm_cmd)

@@ -8695,6 +9145,29 @@ int ath10k_mac_register(struct ath10k *ar)
wiphy_ext_feature_set(ar->hw->wiphy,
NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);

+ if (test_bit(WMI_SERVICE_PEER_TID_CONFIGS_SUPPORT, ar->wmi.svc_map)) {
+ wiphy_ext_feature_set(ar->hw->wiphy,
+ NL80211_EXT_FEATURE_PER_TID_NOACK_CONFIG);
+ wiphy_ext_feature_set(ar->hw->wiphy,
+ NL80211_EXT_FEATURE_PER_STA_NOACK_CONFIG);
+ wiphy_ext_feature_set(ar->hw->wiphy,
+ NL80211_EXT_FEATURE_PER_TID_RETRY_CONFIG);
+ wiphy_ext_feature_set(ar->hw->wiphy,
+ NL80211_EXT_FEATURE_PER_STA_RETRY_CONFIG);
+ wiphy_ext_feature_set(ar->hw->wiphy,
+ NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL);
+ wiphy_ext_feature_set(ar->hw->wiphy,
+ NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL);
+ wiphy_ext_feature_set(ar->hw->wiphy,
+ NL80211_EXT_FEATURE_PER_TID_TX_BITRATE_MASK);
+ wiphy_ext_feature_set(ar->hw->wiphy,
+ NL80211_EXT_FEATURE_PER_STA_TX_BITRATE_MASK);
+ ar->hw->wiphy->max_data_retry_count = ATH10K_MAX_RETRY_COUNT;
+ ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_MAX_DATA_RETRY_COUNT;
+ } else {
+ ar->ops->set_tid_config = NULL;
+ ar->hw->wiphy->flags &= ~WIPHY_FLAG_HAS_MAX_DATA_RETRY_COUNT;
+ }
/*
* on LL hardware queues are managed entirely by the FW
* so we only advertise to mac we can do the queues thing
--
1.7.9.5

2019-06-18 06:47:49

by Tamizh chelvam

[permalink] [raw]

Subject: [PATCHv6 2/9] nl80211: Add new netlink attribute for TID speicific retry count

This patch introduced below NL attributes to add support for
configuring data TID specific retry count

NL80211_TID_ATTR_CONFIG_RETRY
NL80211_TID_ATTR_CONFIG_RETRY_LONG
NL80211_TID_ATTR_CONFIG_RETRY_SHORT

These attributes are added in NL80211_ATTR_TID_CONFIG nested attribute.
This will be useful for the driver which supports data TID specific retry
count configuration rather using phy level retry configuration.
This TID specific retry configuration will have more precedence than
phy level configuration. This configuration can be applied for a
specific peer. To apply this configuration specific to a peer
rather than being applied for all the connected stations,
MAC address of the peer can be passed in NL80211_ATTR_MAC attribute.

Driver should advertise WIPHY_FLAG_HAS_MAX_DATA_RETRY_COUNT and
max_data_retry_count value to notify user space to avoid of passing
greater than the allowed limit.

Driver supporting TID specific retry configuration should advertise
NL80211_EXT_FEATURE_PER_TID_RETRY_CONFIG and per STA specific
data TID retry configuration should advertise
NL80211_EXT_FEATURE_PER_STA_RETRY_CONFIG.

Signed-off-by: Tamizh chelvam <[email protected]>
---
include/net/cfg80211.h | 11 ++++++++++
include/uapi/linux/nl80211.h | 48 ++++++++++++++++++++++++++++++++++++++++++
net/wireless/nl80211.c | 44 ++++++++++++++++++++++++++++++++++++++
3 files changed, 103 insertions(+)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index af5d684..91bcb07 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -527,6 +527,7 @@ struct cfg80211_chan_def {

enum ieee80211_tid_conf_mask {
IEEE80211_TID_CONF_NOACK = BIT(0),
+ IEEE80211_TID_CONF_RETRY = BIT(1),
};

/**
@@ -535,11 +536,15 @@ enum ieee80211_tid_conf_mask {
* @tid_conf_mask: bitmap indicating which parameter changed
* see %enum ieee80211_tid_conf_mask
* @noack: noack configuration value for the TID
+ * @retry_long: retry count value
+ * @retry_short: retry count value
*/
struct ieee80211_tid_cfg {
u8 tid;
u32 tid_conf_mask;
u8 noack;
+ int retry_long;
+ int retry_short;
};

/**
@@ -3925,6 +3930,7 @@ struct cfg80211_ops {
* beaconing mode (AP, IBSS, Mesh, ...).
* @WIPHY_FLAG_HAS_STATIC_WEP: The device supports static WEP key installation
* before connection.
+ * @WIPHY_FLAG_HAS_MAX_DATA_RETRY_COUNT: Device supports data retry count call.
*/
enum wiphy_flags {
/* use hole at 0 */
@@ -3951,6 +3957,7 @@ enum wiphy_flags {
WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22),
WIPHY_FLAG_HAS_CHANNEL_SWITCH = BIT(23),
WIPHY_FLAG_HAS_STATIC_WEP = BIT(24),
+ WIPHY_FLAG_HAS_MAX_DATA_RETRY_COUNT = BIT(25),
};

/**
@@ -4466,6 +4473,8 @@ struct cfg80211_pmsr_capabilities {
* @support_mbssid must be set for this to have any effect.
*
* @pmsr_capa: peer measurement capabilities
+ * @max_data_retry_count: Maximum limit can be configured as retry count
+ * for a TID.
*/
struct wiphy {
/* assign these fields before you register the wiphy */
@@ -4610,6 +4619,8 @@ struct wiphy {

const struct cfg80211_pmsr_capabilities *pmsr_capa;

+ u8 max_data_retry_count;
+
char priv[0] __aligned(NETDEV_ALIGN);
};

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index e628f4e..d30d7c9 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2364,6 +2364,8 @@ enum nl80211_commands {
*
* @NL80211_ATTR_TID_CONFIG: TID specific configuration in a
* nested attribute with %NL80211_TID_ATTR_* sub-attributes.
+ * @NL80211_ATTR_MAX_RETRY_COUNT: The upper limit for the retry count
+ * configuration that the driver can accept.
*
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
@@ -2823,6 +2825,7 @@ enum nl80211_attrs {
NL80211_ATTR_TWT_RESPONDER,

NL80211_ATTR_TID_CONFIG,
+ NL80211_ATTR_MAX_RETRY_COUNT,

/* add attributes here, update the policy in nl80211.c */

@@ -4673,11 +4676,50 @@ enum nl80211_tid_config {
* advertise NL80211_EXT_FEATURE_PER_TID_NOACK_CONFIG and
* NL80211_EXT_FEATURE_PER_STA_NOACK_CONFIG for supporting per sta
* configuration.
+ * @NL80211_TID_ATTR_CONFIG_RETRY: Data TID retry count should be applied
+ * with the value passed through %NL80211_TID_ATTR_CONFIG_RETRY_LONG
+ * and/or %NL80211_TID_ATTR_CONFIG_RETRY_SHORT. This configuration
+ * is per-TID, and the TID is specified with %NL80211_TID_ATTR_CONFIG_TID.
+ * If the peer MAC address is passed in %NL80211_ATTR_MAC, the retry
+ * configuration is applied to the data frame for the tid to that
+ * connected station.
+ * This attribute will be useful to notfiy the driver to apply default
+ * retry values for the connected station (%NL80211_ATTR_MAC), when the
+ * command received without %NL80211_ATTR_RETRY_LONG and/or
+ * %NL80211_ATTR_RETRY_SHORT.
+ * 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. When retry count has never been configured using this command, the
+ * other available radio level retry configuration
+ * (%NL80211_ATTR_WIPHY_RETRY_SHORT and %NL80211_ATTR_WIPHY_RETRY_LONG)
+ * should be used. Driver supporting this feature should advertise
+ * NL80211_EXT_FEATURE_PER_TID_RETRY_CONFIG and supporting per station
+ * retry count configuration should advertise
+ * NL80211_EXT_FEATURE_PER_STA_RETRY_CONFIG.
+ * @NL80211_TID_ATTR_CONFIG_RETRY_SHORT: Number of retries used with data frame
+ * transmission, user-space sets this configuration in
+ * &NL80211_CMD_SET_TID_CONFIG. It is u8 type, min value is 1 and
+ * the max value should be advertised by the driver through
+ * max_data_retry_count. when this attribute is not present, the driver
+ * would use the default configuration.
+ * @NL80211_TID_ATTR_CONFIG_RETRY_LONG: Number of retries used with data frame
+ * transmission, user-space sets this configuration in
+ * &NL80211_CMD_SET_TID_CONFIG. Its type is u8, min value is 1 and
+ * the max value should be advertised by the driver through
+ * max_data_retry_count. when this attribute is not present, the driver
+ * would use the default configuration.
*/
enum nl80211_tid_attr_config {
__NL80211_TID_ATTR_INVALID,
NL80211_TID_ATTR_CONFIG_TID,
NL80211_TID_ATTR_CONFIG_NOACK,
+ NL80211_TID_ATTR_CONFIG_RETRY,
+ NL80211_TID_ATTR_CONFIG_RETRY_SHORT,
+ NL80211_TID_ATTR_CONFIG_RETRY_LONG,

/* keep last */
__NL80211_TID_ATTR_CONFIG_AFTER_LAST,
@@ -5499,6 +5541,10 @@ enum nl80211_feature_flags {
* policy functionality.
* @NL80211_EXT_FEATURE_PER_STA_NOACK_CONFIG: Driver supports STA specific NoAck
* policy functionality.
+ * @NL80211_EXT_FEATURE_PER_TID_RETRY_CONFIG: Driver supports per TID data retry
+ * count functionality.
+ * @NL80211_EXT_FEATURE_PER_STA_RETRY_CONFIG: Driver supports STA specific
+ * data retry count functionality.
*
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
@@ -5547,6 +5593,8 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_SAE_OFFLOAD,
NL80211_EXT_FEATURE_PER_TID_NOACK_CONFIG,
NL80211_EXT_FEATURE_PER_STA_NOACK_CONFIG,
+ NL80211_EXT_FEATURE_PER_TID_RETRY_CONFIG,
+ NL80211_EXT_FEATURE_PER_STA_RETRY_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 4881bfb6..a21a4f4 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -286,6 +286,9 @@ static int validate_ie_attr(const struct nlattr *attr,
[NL80211_TID_ATTR_CONFIG_TID] = { .type = NLA_U8 },
[NL80211_TID_ATTR_CONFIG_NOACK] =
NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE),
+ [NL80211_TID_ATTR_CONFIG_RETRY] = { .type = NLA_FLAG },
+ [NL80211_TID_ATTR_CONFIG_RETRY_SHORT] = NLA_POLICY_MIN(NLA_U8, 0),
+ [NL80211_TID_ATTR_CONFIG_RETRY_LONG] = NLA_POLICY_MIN(NLA_U8, 0),
};

const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
@@ -13617,6 +13620,47 @@ static int parse_tid_conf(struct cfg80211_registered_device *rdev,
nla_get_u8(attrs[NL80211_TID_ATTR_CONFIG_NOACK]);
}

+ if (nla_get_flag(attrs[NL80211_TID_ATTR_CONFIG_RETRY])) {
+ if (!wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_PER_TID_RETRY_CONFIG)) {
+ NL_SET_ERR_MSG_ATTR(extack,
+ attrs[NL80211_TID_ATTR_CONFIG_RETRY],
+ "TID specific configuration not "
+ "supported");
+ return -ENOTSUPP;
+ }
+
+ if (peer && !wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_PER_STA_RETRY_CONFIG)) {
+ NL_SET_ERR_MSG_ATTR(extack,
+ attrs[NL80211_TID_ATTR_CONFIG_RETRY],
+ "peer specfic TID configuration not "
+ "supported");
+ return -ENOTSUPP;
+ }
+
+ tid_conf->tid_conf_mask |= IEEE80211_TID_CONF_RETRY;
+ if (attrs[NL80211_TID_ATTR_CONFIG_RETRY_SHORT]) {
+ tid_conf->retry_short =
+ nla_get_u8(attrs[NL80211_TID_ATTR_CONFIG_RETRY_SHORT]);
+ if (tid_conf->retry_short >
+ rdev->wiphy.max_data_retry_count)
+ return -EINVAL;
+ } else {
+ tid_conf->retry_short = -1;
+ }
+
+ if (attrs[NL80211_TID_ATTR_CONFIG_RETRY_LONG]) {
+ tid_conf->retry_long =
+ nla_get_u8(attrs[NL80211_TID_ATTR_CONFIG_RETRY_LONG]);
+ if (tid_conf->retry_long >
+ rdev->wiphy.max_data_retry_count)
+ return -EINVAL;
+ } else {
+ tid_conf->retry_long = -1;
+ }
+ }
+
return 0;
}

--
1.7.9.5

2019-06-18 06:47:49

by Tamizh chelvam

[permalink] [raw]

Subject: [PATCHv6 1/9] nl80211: New netlink command for TID specific configuration

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_TID_ATTR_CONFIG_NOACK attribute.
Data TID value for this configuration will be passed through
NL80211_TID_ATTR_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 | 57 +++++++++++++++++++++
net/wireless/nl80211.c | 113 ++++++++++++++++++++++++++++++++++++++++++
net/wireless/rdev-ops.h | 12 +++++
net/wireless/trace.h | 17 +++++++
5 files changed, 234 insertions(+)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 2d17e32..af5d684 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -525,6 +525,35 @@ 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;
+ u32 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
@@ -3525,6 +3554,10 @@ struct cfg80211_update_owe_info {
*
* @probe_mesh_link: Probe direct Mesh peer's link quality by sending data frame
* and overrule HWMP path selection algorithm.
+ * @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);
@@ -3843,6 +3876,8 @@ struct cfg80211_ops {
struct cfg80211_update_owe_info *owe_info);
int (*probe_mesh_link)(struct wiphy *wiphy, struct net_device *dev,
const u8 *buf, size_t len);
+ 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 8fc3a43..e628f4e 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1094,6 +1094,10 @@
* peer MAC address and %NL80211_ATTR_FRAME is used to specify the frame
* content. The frame is ethernet data.
*
+ * @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
*/
@@ -1318,6 +1322,8 @@ enum nl80211_commands {

NL80211_CMD_PROBE_MESH_LINK,

+ NL80211_CMD_SET_TID_CONFIG,
+
/* add new commands above here */

/* used to define NL80211_CMD_MAX below */
@@ -2356,6 +2362,9 @@ enum nl80211_commands {
*
* @NL80211_ATTR_TWT_RESPONDER: Enable target wait time responder support.
*
+ * @NL80211_ATTR_TID_CONFIG: TID specific configuration in a
+ * nested attribute with %NL80211_TID_ATTR_* 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
@@ -2813,6 +2822,8 @@ enum nl80211_attrs {

NL80211_ATTR_TWT_RESPONDER,

+ NL80211_ATTR_TID_CONFIG,
+
/* add attributes here, update the policy in nl80211.c */

__NL80211_ATTR_AFTER_LAST,
@@ -4635,6 +4646,45 @@ enum nl80211_tx_power_setting {
};

/**
+ * enum nl80211_tid_config - TID config state
+ * @NL80211_TID_CONFIG_DEFAULT: Default config for the TID
+ * @NL80211_TID_CONFIG_ENABLE: Enable config for the TID
+ * NL80211_TID_CONFIG_DISABLE: Disable config for the TID
+ */
+enum nl80211_tid_config {
+ NL80211_TID_CONFIG_DEFAULT,
+ NL80211_TID_CONFIG_ENABLE,
+ NL80211_TID_CONFIG_DISABLE,
+};
+
+/* enum nl80211_tid_attr_config - TID specific configuration.
+ * @NL80211_TID_ATTR_CONFIG_TID: a TID value (u8 attribute).
+ * @NL80211_TID_ATTR_CONFIG_NOACK: Configure ack policy for the TID.
+ * specified in %NL80211_TID_ATTR_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_tid_attr_config {
+ __NL80211_TID_ATTR_INVALID,
+ NL80211_TID_ATTR_CONFIG_TID,
+ NL80211_TID_ATTR_CONFIG_NOACK,
+
+ /* keep last */
+ __NL80211_TID_ATTR_CONFIG_AFTER_LAST,
+ NL80211_TID_ATTR_CONFIG_MAX = __NL80211_TID_ATTR_CONFIG_AFTER_LAST - 1
+};
+
+/**
* enum nl80211_packet_pattern_attr - packet pattern attribute
* @__NL80211_PKTPAT_INVALID: invalid number for nested attribute
* @NL80211_PKTPAT_PATTERN: the pattern, values where the mask has
@@ -5445,6 +5495,11 @@ enum nl80211_feature_flags {
* @NL80211_EXT_FEATURE_SAE_OFFLOAD: Device wants to do SAE authentication in
* station mode (SAE password is passed as part of the connect command).
*
+ * @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.
*/
@@ -5490,6 +5545,8 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_EXT_KEY_ID,
NL80211_EXT_FEATURE_STA_TX_PWR,
NL80211_EXT_FEATURE_SAE_OFFLOAD,
+ 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 ff760ba..4881bfb6 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -281,6 +281,13 @@ static int validate_ie_attr(const struct nlattr *attr,
NLA_POLICY_NESTED_ARRAY(nl80211_psmr_peer_attr_policy),
};

+static const struct nla_policy
+nl80211_tid_attr_config_policy[NL80211_TID_ATTR_CONFIG_MAX + 1] = {
+ [NL80211_TID_ATTR_CONFIG_TID] = { .type = NLA_U8 },
+ [NL80211_TID_ATTR_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,
@@ -574,6 +581,8 @@ static int validate_ie_attr(const struct nlattr *attr,
[NL80211_ATTR_SAE_PASSWORD] = { .type = NLA_BINARY,
.len = SAE_PASSWORD_MAX_LEN },
[NL80211_ATTR_TWT_RESPONDER] = { .type = NLA_FLAG },
+ [NL80211_ATTR_TID_CONFIG] =
+ NLA_POLICY_NESTED(nl80211_tid_attr_config_policy),
};

/* policy for the key attributes */
@@ -13576,6 +13585,102 @@ static int nl80211_probe_mesh_link(struct sk_buff *skb, struct genl_info *info)
return rdev_probe_mesh_link(rdev, dev, dest, buf, len);
}

+static int parse_tid_conf(struct cfg80211_registered_device *rdev,
+ struct nlattr *attrs[],
+ struct ieee80211_tid_cfg *tid_conf,
+ struct genl_info *info, const u8 *peer)
+{
+ struct netlink_ext_ack *extack = info->extack;
+
+ tid_conf->tid = nla_get_u8(attrs[NL80211_TID_ATTR_CONFIG_TID]);
+ if (attrs[NL80211_TID_ATTR_CONFIG_NOACK]) {
+ if (!wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_PER_TID_NOACK_CONFIG)) {
+ NL_SET_ERR_MSG_ATTR(extack,
+ attrs[NL80211_TID_ATTR_CONFIG_NOACK],
+ "TID specific configuration not "
+ "supported");
+ return -ENOTSUPP;
+ }
+
+ if (peer && !wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_PER_STA_NOACK_CONFIG)) {
+ NL_SET_ERR_MSG_ATTR(extack,
+ attrs[NL80211_TID_ATTR_CONFIG_NOACK],
+ "peer specfic TID configuration not "
+ "supported");
+ return -ENOTSUPP;
+ }
+
+ tid_conf->tid_conf_mask |= IEEE80211_TID_CONF_NOACK;
+ tid_conf->noack =
+ nla_get_u8(attrs[NL80211_TID_ATTR_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_TID_ATTR_CONFIG_MAX + 1];
+ struct net_device *dev = info->user_ptr[1];
+ struct ieee80211_tid_config *tid_config;
+ struct nlattr *tid;
+ int conf_idx = 0, rem_conf;
+ int ret = -EINVAL;
+ u32 num_conf = 0;
+
+ 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++;
+
+ tid_config = kzalloc(struct_size(tid_config, tid_conf, num_conf),
+ GFP_KERNEL);
+ if (!tid_config)
+ return -ENOMEM;
+
+ tid_config->n_tid_conf = num_conf;
+
+ if (info->attrs[NL80211_ATTR_MAC])
+ tid_config->peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+ nla_for_each_nested(tid, info->attrs[NL80211_ATTR_TID_CONFIG],
+ rem_conf) {
+ ret = nla_parse_nested_deprecated(attrs, NL80211_TID_ATTR_CONFIG_MAX,
+ tid, NULL, NULL);
+
+ if (ret)
+ goto bad_tid_conf;
+
+ if (!attrs[NL80211_TID_ATTR_CONFIG_TID]) {
+ ret = -EINVAL;
+ goto bad_tid_conf;
+ }
+
+ ret = parse_tid_conf(rdev, attrs,
+ &tid_config->tid_conf[conf_idx],
+ tid_config->peer);
+ if (ret)
+ goto bad_tid_conf;
+
+ conf_idx++;
+ }
+
+ ret = rdev_set_tid_config(rdev, dev, tid_config);
+
+bad_tid_conf:
+ kfree(tid_config);
+ return ret;
+}
+
#define NL80211_FLAG_NEED_WIPHY 0x01
#define NL80211_FLAG_NEED_NETDEV 0x02
#define NL80211_FLAG_NEED_RTNL 0x04
@@ -14530,6 +14635,14 @@ 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,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = nl80211_set_tid_config,
+ .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 e853a4f..887cda2 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -1299,4 +1299,16 @@ static inline int rdev_update_owe_info(struct cfg80211_registered_device *rdev,
return ret;
}

+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 4fbb91a..199b9b0 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -3457,6 +3457,23 @@
WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(dest))
);

+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

2019-06-18 06:47:52

by Tamizh chelvam

[permalink] [raw]

Subject: [PATCHv6 3/9] nl80211: Add netlink attribute for AMPDU aggregation enable/disable

Introduce NL80211_TID_ATTR_CONFIG_AMPDU_CTRL in nl80211_attr_tid_config
to accept TID specific AMPDU aggregation enable/disable configuration
through NL80211_CMD_SET_TID_CONFIG command. TID for which the
aggregation control configuration is to be applied is passed in
NL80211_TID_ATTR_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.

Driver supporting this feature should advertise
NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL and supporting per-STA data TID
ampdu configuration should advertise NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL.

Signed-off-by: Tamizh chelvam <[email protected]>
---
include/net/cfg80211.h | 3 +++
include/uapi/linux/nl80211.h | 22 ++++++++++++++++++++++
net/wireless/nl80211.c | 25 +++++++++++++++++++++++++
3 files changed, 50 insertions(+)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 91bcb07..d2814e8 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -528,6 +528,7 @@ struct cfg80211_chan_def {
enum ieee80211_tid_conf_mask {
IEEE80211_TID_CONF_NOACK = BIT(0),
IEEE80211_TID_CONF_RETRY = BIT(1),
+ IEEE80211_TID_CONF_AMPDU = BIT(2),
};

/**
@@ -538,6 +539,7 @@ enum ieee80211_tid_conf_mask {
* @noack: noack configuration value for the TID
* @retry_long: retry count value
* @retry_short: retry count value
+ * @ampdu: Enable/Disable aggregation
*/
struct ieee80211_tid_cfg {
u8 tid;
@@ -545,6 +547,7 @@ struct ieee80211_tid_cfg {
u8 noack;
int retry_long;
int retry_short;
+ u8 ampdu;
};

/**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index d30d7c9..465dbc6 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -4712,6 +4712,21 @@ enum nl80211_tid_config {
* the max value should be advertised by the driver through
* max_data_retry_count. when this attribute is not present, the driver
* would use the default configuration.
+ * @NL80211_TID_ATTR_CONFIG_AMPDU_CTRL: Enable/Disable aggregation for the TID
+ * specified in %%NL80211_TID_ATTR_CONFIG_TID. Its type is u8,
+ * if the peer MAC address is passed in %NL80211_ATTR_MAC, the aggregation
+ * configuration is applied
+ * to the data frame for the tid to that connected station.
+ * Station specific aggregation 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_AMPDU_CTRL and supporting per station
+ * aggregation configuration should advertise
+ * NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL.
*/
enum nl80211_tid_attr_config {
__NL80211_TID_ATTR_INVALID,
@@ -4720,6 +4735,7 @@ enum nl80211_tid_attr_config {
NL80211_TID_ATTR_CONFIG_RETRY,
NL80211_TID_ATTR_CONFIG_RETRY_SHORT,
NL80211_TID_ATTR_CONFIG_RETRY_LONG,
+ NL80211_TID_ATTR_CONFIG_AMPDU_CTRL,

/* keep last */
__NL80211_TID_ATTR_CONFIG_AFTER_LAST,
@@ -5545,6 +5561,10 @@ enum nl80211_feature_flags {
* count functionality.
* @NL80211_EXT_FEATURE_PER_STA_RETRY_CONFIG: Driver supports STA specific
* data retry count functionality.
+ * @NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL: Driver supports TID specific
+ * aggregation control(enable/disable).
+ * @NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL: Driver supports per STA
+ * specific TID aggregation control(enable/disable).
*
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
@@ -5595,6 +5615,8 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_PER_STA_NOACK_CONFIG,
NL80211_EXT_FEATURE_PER_TID_RETRY_CONFIG,
NL80211_EXT_FEATURE_PER_STA_RETRY_CONFIG,
+ NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL,
+ NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL,

/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index a21a4f4..a8982de 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -289,6 +289,8 @@ static int validate_ie_attr(const struct nlattr *attr,
[NL80211_TID_ATTR_CONFIG_RETRY] = { .type = NLA_FLAG },
[NL80211_TID_ATTR_CONFIG_RETRY_SHORT] = NLA_POLICY_MIN(NLA_U8, 0),
[NL80211_TID_ATTR_CONFIG_RETRY_LONG] = NLA_POLICY_MIN(NLA_U8, 0),
+ [NL80211_TID_ATTR_CONFIG_AMPDU_CTRL] =
+ NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE),
};

const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
@@ -13661,6 +13663,29 @@ static int parse_tid_conf(struct cfg80211_registered_device *rdev,
}
}

+ if (attrs[NL80211_TID_ATTR_CONFIG_AMPDU_CTRL]) {
+ if (!wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL)) {
+ NL_SET_ERR_MSG_ATTR(extack,
+ attrs[NL80211_TID_ATTR_CONFIG_AMPDU_CTRL],
+ "TID specific configuration not "
+ "supported");
+ return -ENOTSUPP;
+ }
+
+ if (peer && !wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL)) {
+ NL_SET_ERR_MSG_ATTR(extack,
+ attrs[NL80211_TID_ATTR_CONFIG_AMPDU_CTRL],
+ "peer specfic TID configuration not "
+ "supported");
+ return -ENOTSUPP;
+ }
+
+ tid_conf->tid_conf_mask |= IEEE80211_TID_CONF_AMPDU;
+ tid_conf->ampdu =
+ nla_get_u8(attrs[NL80211_TID_ATTR_CONFIG_AMPDU_CTRL]);
+ }
return 0;
}

--
1.7.9.5

2019-06-18 06:47:57

by Tamizh chelvam

[permalink] [raw]

Subject: [PATCHv6 4/9] nl80211: Add netlink attribute to enable/disable RTS_CTS

Introduce NL80211_TID_ATTR_CONFIG_RTSCTS_CTRL in nl80211_attr_tid_config
to accept TID specific RTS_CTS enable/disable configuration
through NL80211_CMD_SET_TID_CONFIG command. TID for which the
RTS_CTS control configuration is to be applied is passed in
NL80211_TID_ATTR_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.

Driver supporting this feature should advertise
NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL and supporting per-STA data TID
RTS_CTS configuration should advertise NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL.

Signed-off-by: Tamizh chelvam <[email protected]>
---
include/net/cfg80211.h | 3 +++
include/uapi/linux/nl80211.h | 22 ++++++++++++++++++++++
net/wireless/nl80211.c | 27 +++++++++++++++++++++++++++
3 files changed, 52 insertions(+)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index d2814e8..1b875d8 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -529,6 +529,7 @@ enum ieee80211_tid_conf_mask {
IEEE80211_TID_CONF_NOACK = BIT(0),
IEEE80211_TID_CONF_RETRY = BIT(1),
IEEE80211_TID_CONF_AMPDU = BIT(2),
+ IEEE80211_TID_CONF_RTSCTS = BIT(3),
};

/**
@@ -540,6 +541,7 @@ enum ieee80211_tid_conf_mask {
* @retry_long: retry count value
* @retry_short: retry count value
* @ampdu: Enable/Disable aggregation
+ * @rtscts: Enable/Disable RTS/CTS
*/
struct ieee80211_tid_cfg {
u8 tid;
@@ -548,6 +550,7 @@ struct ieee80211_tid_cfg {
int retry_long;
int retry_short;
u8 ampdu;
+ u8 rtscts;
};

/**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 465dbc6..df4e07d 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -4727,6 +4727,21 @@ enum nl80211_tid_config {
* NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL and supporting per station
* aggregation configuration should advertise
* NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL.
+ * @NL80211_TID_ATTR_CONFIG_RTSCTS_CTRL: Enable/Disable RTS_CTS for the TID
+ * specified in %%NL80211_TID_ATTR_CONFIG_TID. It is u8 type, 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.
+ * Station specific RTS_CTS 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_RTSCTS_CTRL and supporting per station
+ * RTS_CTS configuration should advertise
+ * NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL.
*/
enum nl80211_tid_attr_config {
__NL80211_TID_ATTR_INVALID,
@@ -4736,6 +4751,7 @@ enum nl80211_tid_attr_config {
NL80211_TID_ATTR_CONFIG_RETRY_SHORT,
NL80211_TID_ATTR_CONFIG_RETRY_LONG,
NL80211_TID_ATTR_CONFIG_AMPDU_CTRL,
+ NL80211_TID_ATTR_CONFIG_RTSCTS_CTRL,

/* keep last */
__NL80211_TID_ATTR_CONFIG_AFTER_LAST,
@@ -5565,6 +5581,10 @@ enum nl80211_feature_flags {
* aggregation control(enable/disable).
* @NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL: Driver supports per STA
* specific TID aggregation control(enable/disable).
+ * @NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL: Driver supports TID specific
+ * RTS_CTS control(enable/disable).
+ * @NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL: Driver supports STA specific
+ * RTS_CTS control(enable/disable).
*
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
@@ -5617,6 +5637,8 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_PER_STA_RETRY_CONFIG,
NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL,
NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL,
+ NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL,
+ NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL,

/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index a8982de..370c483 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -291,6 +291,8 @@ static int validate_ie_attr(const struct nlattr *attr,
[NL80211_TID_ATTR_CONFIG_RETRY_LONG] = NLA_POLICY_MIN(NLA_U8, 0),
[NL80211_TID_ATTR_CONFIG_AMPDU_CTRL] =
NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE),
+ [NL80211_TID_ATTR_CONFIG_RTSCTS_CTRL] =
+ NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE),
};

const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
@@ -13686,6 +13688,31 @@ static int parse_tid_conf(struct cfg80211_registered_device *rdev,
tid_conf->ampdu =
nla_get_u8(attrs[NL80211_TID_ATTR_CONFIG_AMPDU_CTRL]);
}
+
+ if (attrs[NL80211_TID_ATTR_CONFIG_RTSCTS_CTRL]) {
+ if (!wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_PER_TID_RTSCTS_CTRL)) {
+ NL_SET_ERR_MSG_ATTR(extack,
+ attrs[NL80211_TID_ATTR_CONFIG_RTSCTS_CTRL],
+ "TID specific configuration not "
+ "supported");
+ return -ENOTSUPP;
+ }
+
+ if (peer && !wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_PER_STA_RTSCTS_CTRL)) {
+ NL_SET_ERR_MSG_ATTR(extack,
+ attrs[NL80211_TID_ATTR_CONFIG_RTSCTS_CTRL],
+ "peer specfic TID configuration not "
+ "supported");
+ return -ENOTSUPP;
+ }
+
+ tid_conf->tid_conf_mask |= IEEE80211_TID_CONF_RTSCTS;
+ tid_conf->rtscts =
+ nla_get_u8(attrs[NL80211_TID_ATTR_CONFIG_RTSCTS_CTRL]);
+ }
+
return 0;
}

--
1.7.9.5

2019-06-18 06:49:39

by Tamizh chelvam

[permalink] [raw]

Subject: [PATCHv6 6/9] mac80211: Add api to support configuring TID specific configuration

Implement drv_set_tid_config api to allow TID specific
configuration. This per-TID configuration
will be applied for all the connected stations when MAC is NULL.

Signed-off-by: Tamizh chelvam <[email protected]>
---
include/net/mac80211.h | 38 ++++++++++++++++++++++++++++++++++++++
net/mac80211/cfg.c | 28 ++++++++++++++++++++++++++++
net/mac80211/driver-ops.h | 15 +++++++++++++++
3 files changed, 81 insertions(+)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 4411120..f97c755 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1563,6 +1563,8 @@ enum ieee80211_vif_flags {
IEEE80211_VIF_GET_NOA_UPDATE = BIT(3),
};

+#define IEEE80211_TID_MAX 8
+
/**
* struct ieee80211_vif - per-interface data
*
@@ -1600,6 +1602,13 @@ enum ieee80211_vif_flags {
* @txq: the multicast data TX queue (if driver uses the TXQ abstraction)
* @txqs_stopped: per AC flag to indicate that intermediate TXQs are stopped,
* protected by fq->lock.
+ * @noack: per-TID noack policy.
+ * @retry_short: per-TID retry count.
+ * @retry_long: per-TID count.
+ * @ampdu: per-TID Aggregation-MPDU.
+ * @rate_ctrl: per-TID tx rate control type.
+ * @rate_code: per-TID tx rate code mask.
+ * @rtscts: per-TID RTSCTS policy.
*/
struct ieee80211_vif {
enum nl80211_iftype type;
@@ -1626,6 +1635,14 @@ struct ieee80211_vif {

bool txqs_stopped[IEEE80211_NUM_ACS];

+ int noack[IEEE80211_TID_MAX];
+ int retry_short[IEEE80211_TID_MAX];
+ int retry_long[IEEE80211_TID_MAX];
+ int ampdu[IEEE80211_TID_MAX];
+ u8 rate_ctrl[IEEE80211_TID_MAX];
+ u32 rate_code[IEEE80211_TID_MAX];
+ u8 rtscts[IEEE80211_TID_MAX];
+
/* must be last */
u8 drv_priv[0] __aligned(sizeof(void *));
};
@@ -1960,6 +1977,12 @@ struct ieee80211_sta_txpwr {
* @max_tid_amsdu_len: Maximum A-MSDU size in bytes for this TID
* @txq: per-TID data TX queues (if driver uses the TXQ abstraction); note that
* the last entry (%IEEE80211_NUM_TIDS) is used for non-data frames
+ * @noack: per-TID noack policy.
+ * @retry_short: per-TID retry count.
+ * @retry_long: per-TID count.
+ * @ampdu: per-TID Aggregation-MPDU.
+ * @rate_ctrl: per-TID tx rate control type.
+ * @rtscts: per-TID RTSCTS policy.
*/
struct ieee80211_sta {
u32 supp_rates[NUM_NL80211_BANDS];
@@ -2004,6 +2027,13 @@ struct ieee80211_sta {

struct ieee80211_txq *txq[IEEE80211_NUM_TIDS + 1];

+ int noack[IEEE80211_TID_MAX];
+ int retry_short[IEEE80211_TID_MAX];
+ int retry_long[IEEE80211_TID_MAX];
+ int ampdu[IEEE80211_TID_MAX];
+ u8 rate_ctrl[IEEE80211_TID_MAX];
+ u8 rtscts[IEEE80211_TID_MAX];
+
/* must be last */
u8 drv_priv[0] __aligned(sizeof(void *));
};
@@ -3743,6 +3773,10 @@ enum ieee80211_reconfig_type {
*
* @start_pmsr: start peer measurement (e.g. FTM) (this call can sleep)
* @abort_pmsr: abort peer measurement (this call can sleep)
+ * @set_tid_config: TID specific configurations will be applied for a particular
+ * station when @sta is non-NULL. When @sta is %NULL, then the configuration
+ * will be for all the connected clients in the vif.
+ * This callback may sleep.
*/
struct ieee80211_ops {
void (*tx)(struct ieee80211_hw *hw,
@@ -4043,6 +4077,10 @@ struct ieee80211_ops {
struct cfg80211_pmsr_request *request);
void (*abort_pmsr)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct cfg80211_pmsr_request *request);
+ int (*set_tid_config)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct ieee80211_tid_config *tid_conf);
};

/**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index fcf1dfc..55c08af 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3940,6 +3940,33 @@ static int ieee80211_get_txq_stats(struct wiphy *wiphy,
return drv_abort_pmsr(local, sdata, request);
}

+static int ieee80211_set_tid_config(struct wiphy *wiphy,
+ struct net_device *dev,
+ struct ieee80211_tid_config *tid_conf)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct sta_info *sta;
+ int ret;
+
+ if (!sdata->local->ops->set_tid_config)
+ return -EOPNOTSUPP;
+
+ if (!tid_conf->peer)
+ return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
+
+ mutex_lock(&sdata->local->sta_mtx);
+
+ sta = sta_info_get_bss(sdata, tid_conf->peer);
+ if (!sta) {
+ mutex_unlock(&sdata->local->sta_mtx);
+ return -ENOENT;
+ }
+
+ ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
+ mutex_unlock(&sdata->local->sta_mtx);
+ return ret;
+}
+
const struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
@@ -4038,4 +4065,5 @@ static int ieee80211_get_txq_stats(struct wiphy *wiphy,
.start_pmsr = ieee80211_start_pmsr,
.abort_pmsr = ieee80211_abort_pmsr,
.probe_mesh_link = ieee80211_probe_mesh_link,
+ .set_tid_config = ieee80211_set_tid_config,
};
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index c2d8b54..d1ffca5 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1356,4 +1356,19 @@ static inline void drv_del_nan_func(struct ieee80211_local *local,
trace_drv_return_void(local);
}

+static inline int drv_set_tid_config(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_sta *sta,
+ struct ieee80211_tid_config *tid_conf)
+{
+ int ret;
+
+ might_sleep();
+ ret = local->ops->set_tid_config(&local->hw, &sdata->vif, sta,
+ tid_conf);
+ trace_drv_return_int(local, ret);
+
+ return ret;
+}
+
#endif /* __MAC80211_DRIVER_OPS */
--
1.7.9.5

2019-07-11 13:25:53

by Sergey Matyukevich

[permalink] [raw]

Subject: Re: [PATCHv6 1/9] nl80211: New netlink command for TID specific configuration

> 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_TID_ATTR_CONFIG_NOACK attribute.
> Data TID value for this configuration will be passed through
> NL80211_TID_ATTR_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]>

...

> +static int parse_tid_conf(struct cfg80211_registered_device *rdev,
> + struct nlattr *attrs[],
> + struct ieee80211_tid_cfg *tid_conf,
> + struct genl_info *info, const u8 *peer)
> +{

...

> +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_TID_ATTR_CONFIG_MAX + 1];
> + struct net_device *dev = info->user_ptr[1];
> + struct ieee80211_tid_config *tid_config;
> + struct nlattr *tid;
> + int conf_idx = 0, rem_conf;
> + int ret = -EINVAL;
> + u32 num_conf = 0;
> +
> + 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++;
> +
> + tid_config = kzalloc(struct_size(tid_config, tid_conf, num_conf),
> + GFP_KERNEL);
> + if (!tid_config)
> + return -ENOMEM;
> +
> + tid_config->n_tid_conf = num_conf;
> +
> + if (info->attrs[NL80211_ATTR_MAC])
> + tid_config->peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
> +
> + nla_for_each_nested(tid, info->attrs[NL80211_ATTR_TID_CONFIG],
> + rem_conf) {
> + ret = nla_parse_nested_deprecated(attrs, NL80211_TID_ATTR_CONFIG_MAX,
> + tid, NULL, NULL);
> +
> + if (ret)
> + goto bad_tid_conf;
> +
> + if (!attrs[NL80211_TID_ATTR_CONFIG_TID]) {
> + ret = -EINVAL;
> + goto bad_tid_conf;
> + }
> +
> + ret = parse_tid_conf(rdev, attrs,
> + &tid_config->tid_conf[conf_idx],
> + tid_config->peer);

Argument 'info' is missing here from parse_tid_conf. IIUC, appropriate
fixup is included into patch #5. So it looks like rebase issue. But it
makes sense to fix it since this issue makes the patch set non-bisectable.

Regareds,
Sergey

2019-07-11 13:28:27

by Sergey Matyukevich

[permalink] [raw]

Subject: Re: [PATCHv6 5/9] nl80211: Add netlink attribute to configure TID specific tx rate

> Introduce NL80211_TID_ATTR_CONFIG_TX_RATES in nl80211_tid_attr_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_TID_ATTR_CONFIG_TID attribute. TX bitrate mask values passed
> in NL80211_ATTR_TX_RATES attribute and NL80211_TID_ATTR_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]>

...

> if (info->attrs[NL80211_ATTR_TX_RATES]) {
> - err = nl80211_parse_tx_bitrate_mask(info, &params.beacon_rate);
> + err = nl80211_parse_tx_bitrate_mask(info, info->attrs,
> + NL80211_ATTR_TX_RATES,
> + &params.beacon_rate);
> if (err)
> return err;
>

Could you please clarify this change of nl80211_parse_tx_bitrate_mask arguments.
Unless I missing something, the appropriate change for nl80211_parse_tx_bitrate_mask
is not included into this patch set.

Regards,
Sergey

2019-07-11 13:40:18

by Sergey Matyukevich

[permalink] [raw]

Subject: Re: [PATCHv6 1/9] nl80211: New netlink command for TID specific configuration

> 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_TID_ATTR_CONFIG_NOACK attribute.
> Data TID value for this configuration will be passed through
> NL80211_TID_ATTR_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]>

...

> diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
> index ff760ba..4881bfb6 100644
> --- a/net/wireless/nl80211.c
> +++ b/net/wireless/nl80211.c
> @@ -281,6 +281,13 @@ static int validate_ie_attr(const struct nlattr *attr,
> NLA_POLICY_NESTED_ARRAY(nl80211_psmr_peer_attr_policy),
> };
>
> +static const struct nla_policy
> +nl80211_tid_attr_config_policy[NL80211_TID_ATTR_CONFIG_MAX + 1] = {
> + [NL80211_TID_ATTR_CONFIG_TID] = { .type = NLA_U8 },
> + [NL80211_TID_ATTR_CONFIG_NOACK] =
> + NLA_POLICY_MAX(NLA_U8, NL80211_TID_CONFIG_DISABLE),
> +};
> +

IIUC, in the current version of the patch set no specific value of
NL80211_TID_ATTR_CONFIG_TID attribute is reserved for 'apply to all tids'
command. It could be left up to drivers. But we need some convention for
userspace tools (e.g. iw) anyway.

Regards,
Sergey

2019-07-31 09:20:23

by Johannes Berg

[permalink] [raw]

Subject: Re: [PATCHv6 1/9] nl80211: New netlink command for TID specific configuration

Hi,

Was waiting for you to address Sergey's feedback, but now that I looked
anyway, I have some of my own. Sorry for the long delay though!

> + * @NL80211_ATTR_TID_CONFIG: TID specific configuration in a
> + * nested attribute with %NL80211_TID_ATTR_* sub-attributes.

Please use NL80211_TID_CONFIG_ATTR_* throughout, also for

> +/* enum nl80211_tid_attr_config - TID specific configuration.

the enum name

> +enum nl80211_tid_attr_config {
> + __NL80211_TID_ATTR_INVALID,
> + NL80211_TID_ATTR_CONFIG_TID,
> + NL80211_TID_ATTR_CONFIG_NOACK,
> +
> + /* keep last */
> + __NL80211_TID_ATTR_CONFIG_AFTER_LAST,
> + NL80211_TID_ATTR_CONFIG_MAX = __NL80211_TID_ATTR_CONFIG_AFTER_LAST - 1

and all the things in it.

Also, as you can see above, the kernel-doc comment isn't formatted
right.

> + nla_for_each_nested(tid, info->attrs[NL80211_ATTR_TID_CONFIG],
> + rem_conf) {
> + ret = nla_parse_nested_deprecated(attrs, NL80211_TID_ATTR_CONFIG_MAX,
> + tid, NULL, NULL);

You shouldn't use _deprecated.

> + ret = parse_tid_conf(rdev, attrs,
> + &tid_config->tid_conf[conf_idx],
> + tid_config->peer);

and yeah, this should compile.

johannes

2019-07-31 09:25:20

by Johannes Berg

[permalink] [raw]

Subject: Re: [PATCHv6 2/9] nl80211: Add new netlink attribute for TID speicific retry count

^^ there's a typo in the subject

> @@ -3951,6 +3957,7 @@ enum wiphy_flags {
> WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22),
> WIPHY_FLAG_HAS_CHANNEL_SWITCH = BIT(23),
> WIPHY_FLAG_HAS_STATIC_WEP = BIT(24),
> + WIPHY_FLAG_HAS_MAX_DATA_RETRY_COUNT = BIT(25),

This is never used, so that doesn't make sense? You probably want to
advertise the max_data_retry_count value contingent on this flag (*) in
some attribute, so that userspace can also detect the presence/absence
of the flag for the feature?

(*) doesn't really need to be contingent on the flag - could just be
contingent on max_data_retry_count being non-zero and then you don't
need the flag.

> + * @NL80211_ATTR_MAX_RETRY_COUNT: The upper limit for the retry count
> + * configuration that the driver can accept.
> *
> * @NUM_NL80211_ATTR: total number of nl80211_attrs available
> * @NL80211_ATTR_MAX: highest attribute number currently defined
> @@ -2823,6 +2825,7 @@ enum nl80211_attrs {
> NL80211_ATTR_TWT_RESPONDER,
>
> NL80211_ATTR_TID_CONFIG,
> + NL80211_ATTR_MAX_RETRY_COUNT,

You already have the attribute, but again, aren't using it.

> + * @NL80211_EXT_FEATURE_PER_TID_RETRY_CONFIG: Driver supports per TID data retry
> + * count functionality.
> + * @NL80211_EXT_FEATURE_PER_STA_RETRY_CONFIG: Driver supports STA specific
> + * data retry count functionality.

and if you have these you don't need the WIPHY_FLAG anyway?

> + [NL80211_TID_ATTR_CONFIG_RETRY] = { .type = NLA_FLAG },
> + [NL80211_TID_ATTR_CONFIG_RETRY_SHORT] = NLA_POLICY_MIN(NLA_U8, 0),
> + [NL80211_TID_ATTR_CONFIG_RETRY_LONG] = NLA_POLICY_MIN(NLA_U8, 0),

min of 0 doesn't make sense, maybe you meant 1? otherwise just don't set
anything here.

> + "TID specific configuration not "
> + "supported");

This applies to all the patches - please don't break strings across
multiple lines, even if they cross 80 columns. Even checkpatch won't
give you any warning on this.

> + tid_conf->tid_conf_mask |= IEEE80211_TID_CONF_RETRY;
> + if (attrs[NL80211_TID_ATTR_CONFIG_RETRY_SHORT]) {
> + tid_conf->retry_short =
> + nla_get_u8(attrs[NL80211_TID_ATTR_CONFIG_RETRY_SHORT]);
> + if (tid_conf->retry_short >
> + rdev->wiphy.max_data_retry_count)
> + return -EINVAL;
> + } else {
> + tid_conf->retry_short = -1;
> +

I guess you should document that -1 means no changes? Not sure how the
IEEE80211_TID_CONF_RETRY comes in, you're always setting it, so that's
useless - better remove that and document that -1 means no changes?

johannes

2019-07-31 09:26:43

by Johannes Berg

[permalink] [raw]

Subject: Re: [PATCHv6 1/9] nl80211: New netlink command for TID specific configuration

On Tue, 2019-06-18 at 10:57 +0530, Tamizh chelvam wrote:
>
> /**
> + * enum nl80211_tid_config - TID config state
> + * @NL80211_TID_CONFIG_DEFAULT: Default config for the TID
> + * @NL80211_TID_CONFIG_ENABLE: Enable config for the TID
> + * NL80211_TID_CONFIG_DISABLE: Disable config for the TID
> + */
> +enum nl80211_tid_config {
> + NL80211_TID_CONFIG_DEFAULT,
> + NL80211_TID_CONFIG_ENABLE,
> + NL80211_TID_CONFIG_DISABLE,
> +};

Hmm. Looking at this in more detail in patch 3, I don't understand.

How is DEFAULT different from "attribute not present", i.e. "no
changes"?

johannes

2019-07-31 09:30:09

by Johannes Berg

[permalink] [raw]

Subject: Re: [PATCHv6 3/9] nl80211: Add netlink attribute for AMPDU aggregation enable/disable

On Tue, 2019-06-18 at 10:57 +0530, Tamizh chelvam wrote:
>
> + if (!wiphy_ext_feature_isset(&rdev->wiphy,
> + NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL)) {
> + NL_SET_ERR_MSG_ATTR(extack,
> + attrs[NL80211_TID_ATTR_CONFIG_AMPDU_CTRL],
> + "TID specific configuration not "
> + "supported");
> + return -ENOTSUPP;
> + }
> +
> + if (peer && !wiphy_ext_feature_isset(&rdev->wiphy,
> + NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL)) {
> + NL_SET_ERR_MSG_ATTR(extack,
> + attrs[NL80211_TID_ATTR_CONFIG_AMPDU_CTRL],
> + "peer specfic TID configuration not "
> + "supported");
> + return -ENOTSUPP;
> + }

I think you should probably make this be a function to which you pass
the attribute pointer and feature flags.

err = nl80211_check_tid_config_supported(extack,
attrs[NL80211_TID_ATTR_CONFIG_AMPDU_CTRL],
NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL,
NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL);

since you have this code a lot?

johannes

2019-07-31 09:33:36

by Johannes Berg

[permalink] [raw]

Subject: Re: [PATCHv6 5/9] nl80211: Add netlink attribute to configure TID specific tx rate

> /**
> + * 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,
> +};

I'm not really quite sure how LIMITED it supposed to work?

I mean, I could imagine all kinds of limits ...

* limit to anything <= the given rate in kbps
* limit to anything with long GI
* limit to NSS <= given NSS
* limit to MCS <= given MCS

etc.

I guess you could find a <= comparison for each dimension of the various
parameters, and then if you don't want that particular one limited you
give the maximum? Still not really clear to me how that should work.

Also, would it be allowed to pass an invalid rate? Like something like
"100Mbps legacy rate" when that's certainly not valid? You have no
validation on this, so for LIMITED that might still seem useful (per my
first bullet point above) but for anything else ... not so much?

johannes

2019-07-31 10:25:14

by Johannes Berg

[permalink] [raw]

Subject: Re: [PATCHv6 6/9] mac80211: Add api to support configuring TID specific configuration

On Tue, 2019-06-18 at 10:57 +0530, Tamizh chelvam wrote:
>
> @@ -1626,6 +1635,14 @@ struct ieee80211_vif {
>
> bool txqs_stopped[IEEE80211_NUM_ACS];
>
> + int noack[IEEE80211_TID_MAX];
> + int retry_short[IEEE80211_TID_MAX];
> + int retry_long[IEEE80211_TID_MAX];
> + int ampdu[IEEE80211_TID_MAX];
> + u8 rate_ctrl[IEEE80211_TID_MAX];
> + u32 rate_code[IEEE80211_TID_MAX];
> + u8 rtscts[IEEE80211_TID_MAX];

This is quite a bit of data (176 bytes), can we make it up to the driver
to store it if supported, instead?

> @@ -2004,6 +2027,13 @@ struct ieee80211_sta {
>
> struct ieee80211_txq *txq[IEEE80211_NUM_TIDS + 1];
>
> + int noack[IEEE80211_TID_MAX];
> + int retry_short[IEEE80211_TID_MAX];
> + int retry_long[IEEE80211_TID_MAX];
> + int ampdu[IEEE80211_TID_MAX];
> + u8 rate_ctrl[IEEE80211_TID_MAX];
> + u8 rtscts[IEEE80211_TID_MAX];

same here.

> +static int ieee80211_set_tid_config(struct wiphy *wiphy,
> + struct net_device *dev,
> + struct ieee80211_tid_config *tid_conf)
> +{
> + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
> + struct sta_info *sta;
> + int ret;
> +
> + if (!sdata->local->ops->set_tid_config)
> + return -EOPNOTSUPP;
> +
> + if (!tid_conf->peer)
> + return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
> +
> + mutex_lock(&sdata->local->sta_mtx);
> +
> + sta = sta_info_get_bss(sdata, tid_conf->peer);
> + if (!sta) {
> + mutex_unlock(&sdata->local->sta_mtx);
> + return -ENOENT;
> + }
> +
> + ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
> + mutex_unlock(&sdata->local->sta_mtx);
> + return ret;
> +}

and you're not actually using the data anyway?

johannes

2019-07-31 11:13:31

by Tamizh chelvam

[permalink] [raw]

Subject: Re: [PATCHv6 1/9] nl80211: New netlink command for TID specific configuration

On 2019-07-11 18:21, Sergey Matyukevich wrote:
>> 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_TID_ATTR_CONFIG_NOACK attribute.
>> Data TID value for this configuration will be passed through
>> NL80211_TID_ATTR_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]>
>
> ...
>
>> +static int parse_tid_conf(struct cfg80211_registered_device *rdev,
>> + struct nlattr *attrs[],
>> + struct ieee80211_tid_cfg *tid_conf,
>> + struct genl_info *info, const u8 *peer)
>> +{
>
> ...
>
>
>> +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_TID_ATTR_CONFIG_MAX + 1];
>> + struct net_device *dev = info->user_ptr[1];
>> + struct ieee80211_tid_config *tid_config;
>> + struct nlattr *tid;
>> + int conf_idx = 0, rem_conf;
>> + int ret = -EINVAL;
>> + u32 num_conf = 0;
>> +
>> + 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++;
>> +
>> + tid_config = kzalloc(struct_size(tid_config, tid_conf,
>> num_conf),
>> + GFP_KERNEL);
>> + if (!tid_config)
>> + return -ENOMEM;
>> +
>> + tid_config->n_tid_conf = num_conf;
>> +
>> + if (info->attrs[NL80211_ATTR_MAC])
>> + tid_config->peer =
>> nla_data(info->attrs[NL80211_ATTR_MAC]);
>> +
>> + nla_for_each_nested(tid, info->attrs[NL80211_ATTR_TID_CONFIG],
>> + rem_conf) {
>> + ret = nla_parse_nested_deprecated(attrs,
>> NL80211_TID_ATTR_CONFIG_MAX,
>> + tid, NULL, NULL);
>> +
>> + if (ret)
>> + goto bad_tid_conf;
>> +
>> + if (!attrs[NL80211_TID_ATTR_CONFIG_TID]) {
>> + ret = -EINVAL;
>> + goto bad_tid_conf;
>> + }
>> +
>> + ret = parse_tid_conf(rdev, attrs,
>> + &tid_config->tid_conf[conf_idx],
>> + tid_config->peer);
>
>
> Argument 'info' is missing here from parse_tid_conf. IIUC, appropriate
> fixup is included into patch #5. So it looks like rebase issue. But it
> makes sense to fix it since this issue makes the patch set
> non-bisectable.
>
My bad. Yes, it is missed in the rebase. I will fix that.

Thanks,
Tamizh.

2019-07-31 11:15:39

by Tamizh chelvam

[permalink] [raw]

Subject: Re: [PATCHv6 5/9] nl80211: Add netlink attribute to configure TID specific tx rate

On 2019-07-11 18:24, Sergey Matyukevich wrote:
>> Introduce NL80211_TID_ATTR_CONFIG_TX_RATES in nl80211_tid_attr_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_TID_ATTR_CONFIG_TID attribute. TX bitrate mask values passed
>> in NL80211_ATTR_TX_RATES attribute and
>> NL80211_TID_ATTR_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]>
>
> ...
>
>> if (info->attrs[NL80211_ATTR_TX_RATES]) {
>> - err = nl80211_parse_tx_bitrate_mask(info,
>> &params.beacon_rate);
>> + err = nl80211_parse_tx_bitrate_mask(info, info->attrs,
>> +
>> NL80211_ATTR_TX_RATES,
>> +
>> &params.beacon_rate);
>> if (err)
>> return err;
>>
>
> Could you please clarify this change of nl80211_parse_tx_bitrate_mask
> arguments.
> Unless I missing something, the appropriate change for
> nl80211_parse_tx_bitrate_mask
> is not included into this patch set.

Yeah. These arguments are missed in the function definition place:( I
will fix this rebase issue in next version.

Thanks,
Tamizh.

2019-07-31 11:24:15

by Tamizh chelvam

[permalink] [raw]

Subject: Re: [PATCHv6 1/9] nl80211: New netlink command for TID specific configuration

>
>> + * @NL80211_ATTR_TID_CONFIG: TID specific configuration in a
>> + * nested attribute with %NL80211_TID_ATTR_* sub-attributes.
>
> Please use NL80211_TID_CONFIG_ATTR_* throughout, also for
>
>> +/* enum nl80211_tid_attr_config - TID specific configuration.
>
> the enum name
>
>> +enum nl80211_tid_attr_config {
>> + __NL80211_TID_ATTR_INVALID,
>> + NL80211_TID_ATTR_CONFIG_TID,
>> + NL80211_TID_ATTR_CONFIG_NOACK,
>> +
>> + /* keep last */
>> + __NL80211_TID_ATTR_CONFIG_AFTER_LAST,
>> + NL80211_TID_ATTR_CONFIG_MAX = __NL80211_TID_ATTR_CONFIG_AFTER_LAST -
>> 1
>
> and all the things in it.
sure.
> Also, as you can see above, the kernel-doc comment isn't formatted
> right.
>
sure, I will fix it.
>
>> + nla_for_each_nested(tid, info->attrs[NL80211_ATTR_TID_CONFIG],
>> + rem_conf) {
>> + ret = nla_parse_nested_deprecated(attrs,
>> NL80211_TID_ATTR_CONFIG_MAX,
>> + tid, NULL, NULL);
>
> You shouldn't use _deprecated.
>
Okay.
>> + ret = parse_tid_conf(rdev, attrs,
>> + &tid_config->tid_conf[conf_idx],
>> + tid_config->peer);
>
> and yeah, this should compile.
>
My bad. Sorry about this. I will fix this in the next version.

Thanks,
Tamizh.

2019-08-10 12:07:39

by Tamizh chelvam

[permalink] [raw]

Subject: Re: [PATCHv6 2/9] nl80211: Add new netlink attribute for TID speicific retry count

On 2019-07-31 14:54, Johannes Berg wrote:
> ^^ there's a typo in the subject
>
I will fix it in next version.
>> @@ -3951,6 +3957,7 @@ enum wiphy_flags {
>> WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22),
>> WIPHY_FLAG_HAS_CHANNEL_SWITCH = BIT(23),
>> WIPHY_FLAG_HAS_STATIC_WEP = BIT(24),
>> + WIPHY_FLAG_HAS_MAX_DATA_RETRY_COUNT = BIT(25),
>
> This is never used, so that doesn't make sense? You probably want to
> advertise the max_data_retry_count value contingent on this flag (*) in
> some attribute, so that userspace can also detect the presence/absence
> of the flag for the feature?
>
> (*) doesn't really need to be contingent on the flag - could just be
> contingent on max_data_retry_count being non-zero and then you don't
> need the flag.
>
Sure, I will remove this flag.

>> + * @NL80211_ATTR_MAX_RETRY_COUNT: The upper limit for the retry count
>> + * configuration that the driver can accept.
>> *
>> * @NUM_NL80211_ATTR: total number of nl80211_attrs available
>> * @NL80211_ATTR_MAX: highest attribute number currently defined
>> @@ -2823,6 +2825,7 @@ enum nl80211_attrs {
>> NL80211_ATTR_TWT_RESPONDER,
>>
>> NL80211_ATTR_TID_CONFIG,
>> + NL80211_ATTR_MAX_RETRY_COUNT,
>
> You already have the attribute, but again, aren't using it.
>
I will use this in nl80211_get_wiphy to notify userspace.

>> + * @NL80211_EXT_FEATURE_PER_TID_RETRY_CONFIG: Driver supports per TID
>> data retry
>> + * count functionality.
>> + * @NL80211_EXT_FEATURE_PER_STA_RETRY_CONFIG: Driver supports STA
>> specific
>> + * data retry count functionality.
>
> and if you have these you don't need the WIPHY_FLAG anyway?
>
Sure.
>> + [NL80211_TID_ATTR_CONFIG_RETRY] = { .type = NLA_FLAG },
>> + [NL80211_TID_ATTR_CONFIG_RETRY_SHORT] = NLA_POLICY_MIN(NLA_U8, 0),
>> + [NL80211_TID_ATTR_CONFIG_RETRY_LONG] = NLA_POLICY_MIN(NLA_U8, 0),
>
> min of 0 doesn't make sense, maybe you meant 1? otherwise just don't
> set
> anything here.
>
The min value changed to 0 from 1 as per the previous discussions, since
this is a retry count and not a tx count.
Or Shall I remove this min value to avoid the confusion ?
>
>> + "TID specific configuration not "
>> + "supported");
>
> This applies to all the patches - please don't break strings across
> multiple lines, even if they cross 80 columns. Even checkpatch won't
> give you any warning on this.
>
Yeah, sure.
>> + tid_conf->tid_conf_mask |= IEEE80211_TID_CONF_RETRY;
>> + if (attrs[NL80211_TID_ATTR_CONFIG_RETRY_SHORT]) {
>> + tid_conf->retry_short =
>> + nla_get_u8(attrs[NL80211_TID_ATTR_CONFIG_RETRY_SHORT]);
>> + if (tid_conf->retry_short >
>> + rdev->wiphy.max_data_retry_count)
>> + return -EINVAL;
>> + } else {
>> + tid_conf->retry_short = -1;
>> +
>
> I guess you should document that -1 means no changes? Not sure how the
> IEEE80211_TID_CONF_RETRY comes in, you're always setting it, so that's
> useless - better remove that and document that -1 means no changes?
>
The value -1 is to notify the driver to use default value by removing
peer specific retry count.

Thanks,
Tamizh.

2019-08-10 12:41:26

by Tamizh chelvam

[permalink] [raw]

Subject: Re: [PATCHv6 1/9] nl80211: New netlink command for TID specific configuration

On 2019-07-31 14:55, Johannes Berg wrote:
> On Tue, 2019-06-18 at 10:57 +0530, Tamizh chelvam wrote:
>>
>> /**
>> + * enum nl80211_tid_config - TID config state
>> + * @NL80211_TID_CONFIG_DEFAULT: Default config for the TID
>> + * @NL80211_TID_CONFIG_ENABLE: Enable config for the TID
>> + * NL80211_TID_CONFIG_DISABLE: Disable config for the TID
>> + */
>> +enum nl80211_tid_config {
>> + NL80211_TID_CONFIG_DEFAULT,
>> + NL80211_TID_CONFIG_ENABLE,
>> + NL80211_TID_CONFIG_DISABLE,
>> +};
>
> Hmm. Looking at this in more detail in patch 3, I don't understand.
>
> How is DEFAULT different from "attribute not present", i.e. "no
> changes"?
>
This DEFAULT is used to notify the driver to use default configuration
value of driver/vif.
This will be used when the attribute is not present.

2019-08-10 12:41:39

by Tamizh chelvam

[permalink] [raw]

Subject: Re: [PATCHv6 3/9] nl80211: Add netlink attribute for AMPDU aggregation enable/disable

On 2019-07-31 14:58, Johannes Berg wrote:
> On Tue, 2019-06-18 at 10:57 +0530, Tamizh chelvam wrote:
>>
>> + if (!wiphy_ext_feature_isset(&rdev->wiphy,
>> + NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL)) {
>> + NL_SET_ERR_MSG_ATTR(extack,
>> + attrs[NL80211_TID_ATTR_CONFIG_AMPDU_CTRL],
>> + "TID specific configuration not "
>> + "supported");
>> + return -ENOTSUPP;
>> + }
>> +
>> + if (peer && !wiphy_ext_feature_isset(&rdev->wiphy,
>> + NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL)) {
>> + NL_SET_ERR_MSG_ATTR(extack,
>> + attrs[NL80211_TID_ATTR_CONFIG_AMPDU_CTRL],
>> + "peer specfic TID configuration not "
>> + "supported");
>> + return -ENOTSUPP;
>> + }
>
> I think you should probably make this be a function to which you pass
> the attribute pointer and feature flags.
>
> err = nl80211_check_tid_config_supported(extack,
> attrs[NL80211_TID_ATTR_CONFIG_AMPDU_CTRL],
> NL80211_EXT_FEATURE_PER_TID_AMPDU_CTRL,
> NL80211_EXT_FEATURE_PER_STA_AMPDU_CTRL);
>
> since you have this code a lot?
>
Sure, I will make that change in the next version of patchset.

Thanks,
Tamizh.

2019-08-21 07:42:49

by Johannes Berg

[permalink] [raw]

Subject: Re: [PATCHv6 2/9] nl80211: Add new netlink attribute for TID speicific retry count

On Sat, 2019-08-10 at 17:36 +0530, Tamizh chelvam wrote:
>
> > > + [NL80211_TID_ATTR_CONFIG_RETRY] = { .type = NLA_FLAG },
> > > + [NL80211_TID_ATTR_CONFIG_RETRY_SHORT] = NLA_POLICY_MIN(NLA_U8, 0),
> > > + [NL80211_TID_ATTR_CONFIG_RETRY_LONG] = NLA_POLICY_MIN(NLA_U8, 0),
> >
> > min of 0 doesn't make sense, maybe you meant 1? otherwise just don't
> > set
> > anything here.
> >
> The min value changed to 0 from 1 as per the previous discussions, since
> this is a retry count and not a tx count.
> Or Shall I remove this min value to avoid the confusion ?

Yeah, I think then you should just remove the min value. Perhaps a max
value is needed, but I don't know.

> > > + tid_conf->retry_short = -1;
> > > +
> >
> > I guess you should document that -1 means no changes? Not sure how the
> > IEEE80211_TID_CONF_RETRY comes in, you're always setting it, so that's
> > useless - better remove that and document that -1 means no changes?
> >
> The value -1 is to notify the driver to use default value by removing
> peer specific retry count.

Oh. So I think that's slightly different, please document that.

johannes

2019-08-21 07:43:23

by Johannes Berg

[permalink] [raw]

Subject: Re: [PATCHv6 1/9] nl80211: New netlink command for TID specific configuration

On Sat, 2019-08-10 at 18:10 +0530, Tamizh chelvam wrote:
> On 2019-07-31 14:55, Johannes Berg wrote:
> > On Tue, 2019-06-18 at 10:57 +0530, Tamizh chelvam wrote:
> > > /**
> > > + * enum nl80211_tid_config - TID config state
> > > + * @NL80211_TID_CONFIG_DEFAULT: Default config for the TID
> > > + * @NL80211_TID_CONFIG_ENABLE: Enable config for the TID
> > > + * NL80211_TID_CONFIG_DISABLE: Disable config for the TID
> > > + */
> > > +enum nl80211_tid_config {
> > > + NL80211_TID_CONFIG_DEFAULT,
> > > + NL80211_TID_CONFIG_ENABLE,
> > > + NL80211_TID_CONFIG_DISABLE,
> > > +};
> >
> > Hmm. Looking at this in more detail in patch 3, I don't understand.
> >
> > How is DEFAULT different from "attribute not present", i.e. "no
> > changes"?
> >
> This DEFAULT is used to notify the driver to use default configuration
> value of driver/vif.
> This will be used when the attribute is not present.

Hm, but then why is it valid in the nl80211 attribute? That seems
confusing. Maybe there should rather be a validity bit somewhere in the
internal API, so the nl82011 API doesn't need to be concerned with this?

johannes