@@ -1376,7 +1376,8 @@ void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid,
GFP_KERNEL);
}
-static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, int radio_id,
+ u32 changed)
{
struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
struct ath6kl_vif *vif;
@@ -1408,7 +1408,8 @@ static int wil_cfg80211_disconnect(struct wiphy *wiphy,
return rc;
}
-static int wil_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+static int wil_cfg80211_set_wiphy_params(struct wiphy *wiphy, int radio_id,
+ u32 changed)
{
struct wil6210_priv *wil = wiphy_to_wil(wiphy);
int rc;
@@ -1622,7 +1622,9 @@ static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
return err;
}
-static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy,
+ int radio_id,
+ u32 changed)
{
struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
struct net_device *ndev = cfg_to_ndev(cfg);
@@ -737,7 +737,7 @@ mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
* Fragmentation threshold of the driver.
*/
static int
-mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, int radio_id, u32 changed)
{
struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
struct mwifiex_private *priv;
@@ -800,7 +800,7 @@ static int change_bss(struct wiphy *wiphy, struct net_device *dev,
return 0;
}
-static int set_wiphy_params(struct wiphy *wiphy, u32 changed)
+static int set_wiphy_params(struct wiphy *wiphy, int radio_id, u32 changed)
{
int ret = -EINVAL;
struct cfg_param_attr cfg_param_val;
@@ -370,7 +370,8 @@ static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev,
return ret;
}
-static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+static int qtnf_set_wiphy_params(struct wiphy *wiphy, int radio_id,
+ u32 changed)
{
struct qtnf_wmac *mac = wiphy_priv(wiphy);
struct qtnf_vif *vif;
@@ -1298,7 +1298,8 @@ static int cfg80211_rtw_scan(struct wiphy *wiphy
return ret;
}
-static int cfg80211_rtw_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+static int cfg80211_rtw_set_wiphy_params(struct wiphy *wiphy, int radio_id,
+ u32 changed)
{
return 0;
}
@@ -4752,7 +4752,8 @@ struct cfg80211_ops {
int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev,
int rate[NUM_NL80211_BANDS]);
- int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
+ int (*set_wiphy_params)(struct wiphy *wiphy, int radio_id,
+ u32 changed);
int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
enum nl80211_tx_power_setting type, int mbm);
@@ -5442,6 +5443,18 @@ struct wiphy_iftype_akm_suites {
int n_akm_suites;
};
+/**
+ * struct wiphy_radio_cfg - physical radio config of a wiphy
+ * This structure describes the configurations of a physical radio in a
+ * wiphy. It is used to denote per-radio attributes belonging to a wiphy.
+ *
+ * @rts_threshold: RTS threshold (dot11RTSThreshold);
+ * -1 (default) = RTS/CTS disabled
+ */
+struct wiphy_radio_cfg {
+ u32 rts_threshold;
+};
+
/**
* struct wiphy_radio_freq_range - wiphy frequency range
* @start_freq: start range edge frequency (kHz)
@@ -5699,6 +5712,10 @@ struct wiphy_radio {
*
* @radio: radios belonging to this wiphy
* @n_radio: number of radios
+ *
+ * @radio_cfg: configuration of radios belonging to a muli-radio wiphy. This
+ * struct contains a list of all radio specific attributes and should be
+ * used only for multi-radio wiphy.
*/
struct wiphy {
struct mutex mtx;
@@ -5786,6 +5803,8 @@ struct wiphy {
void (*reg_notifier)(struct wiphy *wiphy,
struct regulatory_request *request);
+ struct wiphy_radio_cfg *radio_cfg;
+
/* fields below are read-only, assigned by cfg80211 */
const struct ieee80211_regdomain __rcu *regd;
@@ -2899,6 +2899,14 @@ enum nl80211_commands {
* APs Support". Drivers may set additional flags that they support
* in the kernel or device.
*
+ * @NL80211_ATTR_WIPHY_RADIO_INDEX: (int) Integer attribute denoting the index
+ * of the radio in interest. Internally a value of -1 is used to
+ * indicate that the radio id is not given in user-space. This means
+ * that all the attributes are applicable to all the radios. If there is
+ * a radio index provided in user-space, the attributes will be
+ * applicable to that specific radio only. If the radio id is greater
+ * thank the number of radios, error denoting invalid value is returned.
+ *
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
@@ -3456,6 +3464,8 @@ enum nl80211_attrs {
NL80211_ATTR_ASSOC_MLD_EXT_CAPA_OPS,
+ NL80211_ATTR_WIPHY_RADIO_INDEX,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -3028,7 +3028,8 @@ static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
return 0;
}
-static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+static int ieee80211_set_wiphy_params(struct wiphy *wiphy, int radio_id,
+ u32 changed)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
int err;
@@ -995,6 +995,24 @@ int wiphy_register(struct wiphy *wiphy)
wiphy->max_num_akm_suites > CFG80211_MAX_NUM_AKM_SUITES)
return -EINVAL;
+ /* Allocate radio configuration space for multi-radio wiphy */
+ if (wiphy->n_radio > 0) {
+ int idx;
+
+ wiphy->radio_cfg = kcalloc(wiphy->n_radio,
+ sizeof(*wiphy->radio_cfg),
+ GFP_KERNEL);
+ if (!wiphy->radio_cfg)
+ return -ENOMEM;
+ /*
+ * Initialize wiphy radio parameters to IEEE 802.11
+ * MIB default values. RTS threshold is disabled by
+ * default with the special -1 value.
+ */
+ for (idx = 0; idx < wiphy->n_radio; idx++)
+ wiphy->radio_cfg[idx].rts_threshold = (u32)-1;
+ }
+
/* check and set up bitrates */
ieee80211_set_bitrate_flags(wiphy);
@@ -1223,6 +1241,7 @@ void cfg80211_dev_free(struct cfg80211_registered_device *rdev)
void wiphy_free(struct wiphy *wiphy)
{
put_device(&wiphy->dev);
+ kfree(wiphy->radio_cfg);
}
EXPORT_SYMBOL(wiphy_free);
@@ -854,6 +854,7 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
[NL80211_ATTR_MLO_RECONF_REM_LINKS] = { .type = NLA_U16 },
[NL80211_ATTR_EPCS] = { .type = NLA_FLAG },
[NL80211_ATTR_ASSOC_MLD_EXT_CAPA_OPS] = { .type = NLA_U16 },
+ [NL80211_ATTR_WIPHY_RADIO_INDEX] = { .type = NLA_U8 },
};
/* policy for the key attributes */
@@ -3608,6 +3609,33 @@ static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
return __nl80211_set_channel(rdev, netdev, info, link_id);
}
+static int nl80211_set_wiphy_radio(struct genl_info *info,
+ struct cfg80211_registered_device *rdev,
+ int radio_id)
+{
+ u32 rts_threshold, old_rts, changed = 0;
+ int result;
+
+ if (!rdev->ops->set_wiphy_params)
+ return -EOPNOTSUPP;
+
+ if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
+ rts_threshold = nla_get_u32(
+ info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
+ changed |= WIPHY_PARAM_RTS_THRESHOLD;
+ }
+
+ old_rts = rdev->wiphy.radio_cfg[radio_id].rts_threshold;
+
+ rdev->wiphy.radio_cfg[radio_id].rts_threshold = rts_threshold;
+
+ result = rdev_set_wiphy_params(rdev, radio_id, changed);
+ if (result)
+ rdev->wiphy.radio_cfg[radio_id].rts_threshold = old_rts;
+
+ return 0;
+}
+
static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev = NULL;
@@ -3617,6 +3645,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
struct nlattr *nl_txq_params;
u32 changed;
u8 retry_short = 0, retry_long = 0;
+ int radio_id = -1;
u32 frag_threshold = 0, rts_threshold = 0;
u8 coverage_class = 0;
u32 txq_limit = 0, txq_memory_limit = 0, txq_quantum = 0;
@@ -3670,6 +3699,19 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
if (result)
return result;
+ if (info->attrs[NL80211_ATTR_WIPHY_RADIO_INDEX]) {
+ /* Radio idx is not expected for non-multi radio wiphy */
+ if (rdev->wiphy.n_radio <= 0)
+ return -EINVAL;
+
+ radio_id = nla_get_u8(
+ info->attrs[NL80211_ATTR_WIPHY_RADIO_INDEX]);
+ if (radio_id >= rdev->wiphy.n_radio)
+ return -EINVAL;
+ else
+ return nl80211_set_wiphy_radio(info, rdev, radio_id);
+ }
+
if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
struct ieee80211_txq_params txq_params;
struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
@@ -3879,16 +3921,26 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
if (changed) {
u8 old_retry_short, old_retry_long;
u32 old_frag_threshold, old_rts_threshold;
- u8 old_coverage_class;
+ u8 old_coverage_class, i;
u32 old_txq_limit, old_txq_memory_limit, old_txq_quantum;
+ u32 *old_radio_rts_threshold;
if (!rdev->ops->set_wiphy_params)
return -EOPNOTSUPP;
+ old_radio_rts_threshold = kcalloc(rdev->wiphy.n_radio,
+ sizeof(u32),
+ GFP_KERNEL);
+ if (!old_radio_rts_threshold)
+ return -ENOMEM;
+
old_retry_short = rdev->wiphy.retry_short;
old_retry_long = rdev->wiphy.retry_long;
old_frag_threshold = rdev->wiphy.frag_threshold;
old_rts_threshold = rdev->wiphy.rts_threshold;
+ for (i = 0 ; i < rdev->wiphy.n_radio; i++)
+ old_radio_rts_threshold[i] =
+ rdev->wiphy.radio_cfg[i].rts_threshold;
old_coverage_class = rdev->wiphy.coverage_class;
old_txq_limit = rdev->wiphy.txq_limit;
old_txq_memory_limit = rdev->wiphy.txq_memory_limit;
@@ -3900,8 +3952,12 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
rdev->wiphy.retry_long = retry_long;
if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
rdev->wiphy.frag_threshold = frag_threshold;
- if (changed & WIPHY_PARAM_RTS_THRESHOLD)
+ if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
rdev->wiphy.rts_threshold = rts_threshold;
+ for (i = 0 ; i < rdev->wiphy.n_radio; i++)
+ rdev->wiphy.radio_cfg[i].rts_threshold =
+ rdev->wiphy.rts_threshold;
+ }
if (changed & WIPHY_PARAM_COVERAGE_CLASS)
rdev->wiphy.coverage_class = coverage_class;
if (changed & WIPHY_PARAM_TXQ_LIMIT)
@@ -3911,18 +3967,23 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
if (changed & WIPHY_PARAM_TXQ_QUANTUM)
rdev->wiphy.txq_quantum = txq_quantum;
- result = rdev_set_wiphy_params(rdev, changed);
+ result = rdev_set_wiphy_params(rdev, radio_id, changed);
if (result) {
rdev->wiphy.retry_short = old_retry_short;
rdev->wiphy.retry_long = old_retry_long;
rdev->wiphy.frag_threshold = old_frag_threshold;
rdev->wiphy.rts_threshold = old_rts_threshold;
+ for (i = 0 ; i < rdev->wiphy.n_radio; i++)
+ rdev->wiphy.radio_cfg[i].rts_threshold =
+ old_radio_rts_threshold[i];
rdev->wiphy.coverage_class = old_coverage_class;
rdev->wiphy.txq_limit = old_txq_limit;
rdev->wiphy.txq_memory_limit = old_txq_memory_limit;
rdev->wiphy.txq_quantum = old_txq_quantum;
- return result;
}
+
+ kfree(old_radio_rts_threshold);
+ return result;
}
return 0;
@@ -577,13 +577,15 @@ static inline int rdev_leave_ibss(struct cfg80211_registered_device *rdev,
}
static inline int
-rdev_set_wiphy_params(struct cfg80211_registered_device *rdev, u32 changed)
+rdev_set_wiphy_params(struct cfg80211_registered_device *rdev, int radio_id,
+ u32 changed)
{
int ret = -EOPNOTSUPP;
- trace_rdev_set_wiphy_params(&rdev->wiphy, changed);
+ trace_rdev_set_wiphy_params(&rdev->wiphy, radio_id, changed);
if (rdev->ops->set_wiphy_params)
- ret = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
+ ret = rdev->ops->set_wiphy_params(&rdev->wiphy, radio_id,
+ changed);
trace_rdev_return_int(&rdev->wiphy, ret);
return ret;
}
@@ -1678,18 +1678,21 @@ TRACE_EVENT(rdev_join_ocb,
);
TRACE_EVENT(rdev_set_wiphy_params,
- TP_PROTO(struct wiphy *wiphy, u32 changed),
- TP_ARGS(wiphy, changed),
+ TP_PROTO(struct wiphy *wiphy, int radio_id, u32 changed),
+ TP_ARGS(wiphy, radio_id, changed),
TP_STRUCT__entry(
WIPHY_ENTRY
+ __field(int, radio_id)
__field(u32, changed)
),
TP_fast_assign(
WIPHY_ASSIGN;
+ __entry->radio_id = radio_id;
__entry->changed = changed;
),
- TP_printk(WIPHY_PR_FMT ", changed: %u",
- WIPHY_PR_ARG, __entry->changed)
+ TP_printk(WIPHY_PR_FMT ", radio_id: %d, changed: %u",
+ WIPHY_PR_ARG, __entry->radio_id,
+ __entry->changed)
);
DECLARE_EVENT_CLASS(wiphy_wdev_link_evt,
@@ -263,7 +263,7 @@ int cfg80211_wext_siwrts(struct net_device *dev,
else
wdev->wiphy->rts_threshold = rts->value;
- err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD);
+ err = rdev_set_wiphy_params(rdev, -1, WIPHY_PARAM_RTS_THRESHOLD);
if (err)
wdev->wiphy->rts_threshold = orts;
return err;
@@ -304,7 +304,7 @@ int cfg80211_wext_siwfrag(struct net_device *dev,
wdev->wiphy->frag_threshold = frag->value & ~0x1;
}
- err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD);
+ err = rdev_set_wiphy_params(rdev, -1, WIPHY_PARAM_FRAG_THRESHOLD);
if (err)
wdev->wiphy->frag_threshold = ofrag;
return err;
@@ -355,7 +355,7 @@ static int cfg80211_wext_siwretry(struct net_device *dev,
changed |= WIPHY_PARAM_RETRY_SHORT;
}
- err = rdev_set_wiphy_params(rdev, changed);
+ err = rdev_set_wiphy_params(rdev, -1, changed);
if (err) {
wdev->wiphy->retry_short = oshort;
wdev->wiphy->retry_long = olong;
Currently, setting RTS threshold is based on per-phy basis, i.e., all the radios present in a wiphy will take RTS threshold value to be the one sent from userspace. But each radio in a multi-radio wiphy can have different RTS threshold requirements. To extend support to set RTS threshold for each radio, get the radio for which RTS threshold needs to be changed from the user. Add a new attribute in NL - NL80211_ATTR_WIPHY_RADIO_INDEX, to identify the radio of interest. Create a new structure - wiphy_radio_cfg and add rts_threshold in it as a u32 value to store RTS threshold of each radio in a wiphy and allocate memory for it during wiphy register based on the wiphy.n_radio updated by drivers. Pass radio id received from the user to mac80211 drivers along with its corresponding RTS threshold. Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com> --- drivers/net/wireless/ath/ath6kl/cfg80211.c | 3 +- drivers/net/wireless/ath/wil6210/cfg80211.c | 3 +- .../broadcom/brcm80211/brcmfmac/cfg80211.c | 4 +- .../net/wireless/marvell/mwifiex/cfg80211.c | 2 +- .../wireless/microchip/wilc1000/cfg80211.c | 2 +- .../net/wireless/quantenna/qtnfmac/cfg80211.c | 3 +- .../staging/rtl8723bs/os_dep/ioctl_cfg80211.c | 3 +- include/net/cfg80211.h | 21 +++++- include/uapi/linux/nl80211.h | 10 +++ net/mac80211/cfg.c | 3 +- net/wireless/core.c | 19 +++++ net/wireless/nl80211.c | 69 +++++++++++++++++-- net/wireless/rdev-ops.h | 8 ++- net/wireless/trace.h | 11 +-- net/wireless/wext-compat.c | 6 +- 15 files changed, 144 insertions(+), 23 deletions(-)