From: Miri Korenblit <miriam.rachel.korenblit@intel.com>
To: johannes@sipsolutions.net
Cc: linux-wireless@vger.kernel.org,
Johannes Berg <johannes.berg@intel.com>,
Gregory Greenman <gregory.greenman@intel.com>
Subject: [PATCH 5/8] wifi: mac80211: disallow drivers with HT wider than HE
Date: Thu, 11 Jan 2024 18:17:43 +0200 [thread overview]
Message-ID: <20240111181514.da15fe3214d2.I4df51ad2f4c844615c168bf9bdb498925b3c77d4@changeid> (raw)
In-Reply-To: <20240111161746.3978601-1-miriam.rachel.korenblit@intel.com>
From: Johannes Berg <johannes.berg@intel.com>
To simplify the code in the next patch, disallow drivers
supporting 40 MHz in HT but not HE, since we'd otherwise
have to track local maximum bandwidth per mode there.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
---
net/mac80211/main.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index d48fa1147c14..e05bcc35bc1e 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1119,8 +1119,26 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
supp_vht = supp_vht || sband->vht_cap.vht_supported;
for_each_sband_iftype_data(sband, i, iftd) {
+ u8 he_40_mhz_cap;
+
supp_he = supp_he || iftd->he_cap.has_he;
supp_eht = supp_eht || iftd->eht_cap.has_eht;
+
+ if (sband->band == NL80211_BAND_2GHZ)
+ he_40_mhz_cap =
+ IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
+ else
+ he_40_mhz_cap =
+ IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G;
+
+ /* currently no support for HE client where HT has 40 MHz but not HT */
+ if (iftd->he_cap.has_he &&
+ iftd->types_mask & (BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_P2P_CLIENT)) &&
+ sband->ht_cap.ht_supported &&
+ sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 &&
+ !(iftd->he_cap.he_cap_elem.phy_cap_info[0] & he_40_mhz_cap))
+ return -EINVAL;
}
/* HT, VHT, HE require QoS, thus >= 4 queues */
--
2.34.1
next prev parent reply other threads:[~2024-01-11 16:18 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-11 16:17 [PATCH 0/8] cfg80211/mac80211 patches from our internal tree 2024-01-11 Miri Korenblit
2024-01-11 16:17 ` [PATCH 1/8] wifi: mac80211_hwsim: advertise 15 simultaneous links Miri Korenblit
2024-01-11 16:17 ` [PATCH 2/8] wifi: mac80211: simplify ieee80211_config_bw() prototype Miri Korenblit
2024-01-11 16:17 ` [PATCH 3/8] wifi: mac80211: remove extra element parsing Miri Korenblit
2024-01-11 16:17 ` [PATCH 4/8] wifi: mac80211: simplify HE capability access Miri Korenblit
2024-01-11 16:17 ` Miri Korenblit [this message]
2024-01-11 20:39 ` [PATCH 5/8] wifi: mac80211: disallow drivers with HT wider than HE Jonathan Bither
2024-01-12 10:21 ` Johannes Berg
2024-01-12 17:27 ` Jonathan Bither
2024-01-12 13:10 ` Kalle Valo
2024-01-12 18:42 ` Johannes Berg
2024-01-12 19:58 ` Ben Greear
2024-01-15 22:00 ` Johannes Berg
2024-01-15 23:14 ` Ben Greear
2024-01-13 6:54 ` Kalle Valo
2024-01-11 16:17 ` [PATCH 6/8] wifi: mac80211: fix potential sta-link leak Miri Korenblit
2024-01-11 16:17 ` [PATCH 7/8] wifi: mac80211: don't set bss_conf in parsing Miri Korenblit
2024-01-11 16:17 ` [PATCH 8/8] wifi: mac80211: use deflink and fix typo in link ID check Miri Korenblit
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