This adds the NL80211_ATTR_WIPHY_HTCAP_RXMASK attribute to
NL80211_CMD_SET_WIPHY in order for the user to specify the ht_caps mcs
rxmask.
Signed-off-by: Cedric Debarge <cedric.deba...@acksys.fr>
---
include/uapi/linux/nl80211.h | 5 +++++
net/wireless/nl80211.c | 18 ++++++++++++++++++
net/wireless/rdev-ops.h | 11 +++++++++++
net/wireless/trace.h | 15 +++++++++++++++
4 files changed, 49 insertions(+)
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 7758969..50a53d8 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1794,6 +1794,9 @@ enum nl80211_commands {
* connecting to a PCP, and in %NL80211_CMD_START_AP to start
* a PCP instead of AP. Relevant for DMG networks only.
*
+ * @NL80211_ATTR_WIPHY_HTCAP_RXMASK: Override hardware capabilities for ht_caps
+ * mcs rxmask.
+ *
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
@@ -2170,6 +2173,8 @@ enum nl80211_attrs {
NL80211_ATTR_PBSS,
+ NL80211_ATTR_WIPHY_HTCAP_RXMASK,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 268cb49..ef5ec8b 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -402,6 +402,9 @@ static const struct nla_policy
nl80211_policy[NUM_NL80211_ATTR] = {
[NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
[NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
[NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
+ [NL80211_ATTR_WIPHY_HTCAP_RXMASK] = { .type = NLA_BINARY,
+ .len = IEEE80211_HT_MCS_MASK_LEN
+ },
};
/* policy for the key attributes */
@@ -2243,6 +2246,21 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct
genl_info *info)
return result;
}
+ if (info->attrs[NL80211_ATTR_WIPHY_HTCAP_RXMASK]) {
+ u8 rxmask[IEEE80211_HT_MCS_MASK_LEN];
+
+ if (wdev)
+ return -EOPNOTSUPP;
+
+ memcpy(rxmask,
+ nla_data(info->attrs[NL80211_ATTR_WIPHY_HTCAP_RXMASK]),
+ IEEE80211_HT_MCS_MASK_LEN);
+
+ result = rdev_set_htcap_rxmask(rdev, rxmask);
+ if (result)
+ return result;
+ }
+
changed = 0;
if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index 8ae0c04..488adb9 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -1071,4 +1071,15 @@ rdev_set_coalesce(struct cfg80211_registered_device
*rdev,
trace_rdev_return_int(&rdev->wiphy, ret);
return ret;
}
+
+static inline int
+rdev_set_htcap_rxmask(struct cfg80211_registered_device *rdev, uint8_t *rxmask)
+{
+ int ret;
+
+ trace_rdev_set_htcap_rxmask(&rdev->wiphy, rxmask);
+ ret = rdev->ops->set_htcap_rxmask(&rdev->wiphy, rxmask);
+ 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 09b242b..d7c8c3c 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -2120,6 +2120,21 @@ TRACE_EVENT(rdev_tdls_cancel_channel_switch,
WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(addr))
);
+TRACE_EVENT(rdev_set_htcap_rxmask,
+ TP_PROTO(struct wiphy *wiphy, uint8_t *rxmask),
+ TP_ARGS(wiphy, rxmask),
+ TP_STRUCT__entry(
+ WIPHY_ENTRY
+ __array(uint8_t, rxmask, IEEE80211_HT_MCS_MASK_LEN)
+ ),
+ TP_fast_assign(
+ WIPHY_ASSIGN;
+ memcpy(__entry->rxmask, rxmask, IEEE80211_HT_MCS_MASK_LEN);
+ ),
+ TP_printk(WIPHY_PR_FMT ", %*ph",
+ WIPHY_PR_ARG, IEEE80211_HT_MCS_MASK_LEN, &__entry->rxmask[0])
+);
+
/*************************************************************
* cfg80211 exported functions traces *
*************************************************************/
--
1.9.1
