diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2022-07-13 18:08:03 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2022-07-15 11:43:23 +0200 |
| commit | 175ad2ec89feb8c01f87be64882af67481b1b1f5 (patch) | |
| tree | 29d6662f686510e1a4e1681f120f68bc2374acb9 /net/mac80211/sta_info.c | |
| parent | 5d3a341c0dd21f14eb97cea3754621d8aa1637de (diff) | |
wifi: mac80211: limit A-MSDU subframes for client too
In AP/mesh where the stations are added by userspace, we
limit the number of A-MSDU subframes according to the
extended capabilities.
Refactor the code and extend that also to client-side.
Fixes: 506bcfa8abeb ("mac80211: limit the A-MSDU Tx based on peer's capabilities")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/sta_info.c')
| -rw-r--r-- | net/mac80211/sta_info.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index f52a7fa6dde5..eed88630594f 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -2761,3 +2761,26 @@ void ieee80211_sta_remove_link(struct sta_info *sta, unsigned int link_id) sta_remove_link(sta, link_id, true); } + +void ieee80211_sta_set_max_amsdu_subframes(struct sta_info *sta, + const u8 *ext_capab, + unsigned int ext_capab_len) +{ + u8 val; + + sta->sta.max_amsdu_subframes = 0; + + if (ext_capab_len < 8) + return; + + /* The sender might not have sent the last bit, consider it to be 0 */ + val = u8_get_bits(ext_capab[7], WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB); + + /* we did get all the bits, take the MSB as well */ + if (ext_capab_len >= 9) + val |= u8_get_bits(ext_capab[8], + WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB) << 1; + + if (val) + sta->sta.max_amsdu_subframes = 4 << val; +} |