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Code Issues Releases Wiki Activity

wifi: iwlwifi: mvm: adjust smart fifo configuration to MLO

Browse source 
Consider properties of all available links for smart FIFO
configuration.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230328104949.870ff175b82c.Iada56a474a0770ae5469b31d635cc05405dbfb87@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Gregory Greenman 2023-03-28 10:58:56 +03:00 committed by Johannes Berg
parent 6b5a87df8e
commit 203b22acb1
1 changed files with 27 additions and 5 deletions
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32
drivers/net/wireless/intel/iwlwifi/mvm/sf.c
View file

@ -98,6 +98,10 @@ static void iwl_mvm_fill_sf_command(struct iwl_mvm *mvm,
struct ieee80211_sta *sta)
{
int i, j, watermark;
u8 max_rx_nss = 0;
bool is_legacy = true;
struct ieee80211_link_sta *link_sta;
unsigned int link_id;
sf_cmd->watermark[SF_LONG_DELAY_ON] = cpu_to_le32(SF_W_MARK_SCAN);
@ -106,10 +110,25 @@ static void iwl_mvm_fill_sf_command(struct iwl_mvm *mvm,
* capabilities of the AP station, and choose the watermark accordingly.
*/
if (sta) {
if (sta->deflink.ht_cap.ht_supported ||
sta->deflink.vht_cap.vht_supported ||
sta->deflink.he_cap.has_he) {
switch (sta->deflink.rx_nss) {
/* find the maximal NSS number among all links (if relevant) */
rcu_read_lock();
for (link_id = 0; link_id < ARRAY_SIZE(sta->link); link_id++) {
link_sta = rcu_dereference(sta->link[link_id]);
if (!link_sta)
continue;
if (link_sta->ht_cap.ht_supported ||
link_sta->vht_cap.vht_supported ||
link_sta->eht_cap.has_eht ||
link_sta->he_cap.has_he) {
is_legacy = false;
max_rx_nss = max(max_rx_nss, link_sta->rx_nss);
}
}
rcu_read_unlock();
if (!is_legacy) {
switch (max_rx_nss) {
case 1:
watermark = SF_W_MARK_SISO;
break;
@ -151,7 +170,6 @@ static void iwl_mvm_fill_sf_command(struct iwl_mvm *mvm,
memcpy(sf_cmd->full_on_timeouts, sf_full_timeout_def,
sizeof(sf_full_timeout_def));
}
}
static int iwl_mvm_sf_config(struct iwl_mvm *mvm, u8 sta_id,
@ -275,5 +293,9 @@ int iwl_mvm_sf_update(struct iwl_mvm *mvm, struct ieee80211_vif *changed_vif,
/* If there are multiple active macs - change to SF_UNINIT */
new_state = SF_UNINIT;
}
/* For MLO it's ok to use deflink->sta_id as it's needed only to get
* a pointer to mac80211 sta
*/
return iwl_mvm_sf_config(mvm, sta_id, new_state);
}