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wifi: iwlwifi: mvm: implement BAID link switching

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When we switch station links, also add the code to switch
BAIDs from one station mask to the new one.

To do so, refactor the switching code a bit to have common
code for all the needed switches; will add keys next.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230416154301.40654afce24f.I0e35151f69e7513be53ddb8f008e9ab48278c352@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2023-04-16 15:47:35 +03:00
parent 9aa3856d9b
commit 7a243c6b68
1 changed files with 70 additions and 10 deletions
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80
drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c
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@ -911,11 +911,12 @@ void iwl_mvm_mld_modify_all_sta_disable_tx(struct iwl_mvm *mvm,
rcu_read_unlock();
}
static int iwl_mvm_mld_update_sta_queue(struct iwl_mvm *mvm,
struct iwl_mvm_sta *mvm_sta,
u32 old_sta_mask,
u32 new_sta_mask)
static int iwl_mvm_mld_update_sta_queues(struct iwl_mvm *mvm,
struct ieee80211_sta *sta,
u32 old_sta_mask,
u32 new_sta_mask)
{
struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
struct iwl_scd_queue_cfg_cmd cmd = {
.operation = cpu_to_le32(IWL_SCD_QUEUE_MODIFY),
.u.modify.old_sta_mask = cpu_to_le32(old_sta_mask),
@ -951,6 +952,63 @@ static int iwl_mvm_mld_update_sta_queue(struct iwl_mvm *mvm,
return 0;
}
static int iwl_mvm_mld_update_sta_baids(struct iwl_mvm *mvm,
u32 old_sta_mask,
u32 new_sta_mask)
{
struct iwl_rx_baid_cfg_cmd cmd = {
.action = cpu_to_le32(IWL_RX_BAID_ACTION_MODIFY),
.modify.old_sta_id_mask = cpu_to_le32(old_sta_mask),
.modify.new_sta_id_mask = cpu_to_le32(new_sta_mask),
};
u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, RX_BAID_ALLOCATION_CONFIG_CMD);
int baid;
BUILD_BUG_ON(sizeof(struct iwl_rx_baid_cfg_resp) != sizeof(baid));
for (baid = 0; baid < ARRAY_SIZE(mvm->baid_map); baid++) {
struct iwl_mvm_baid_data *data;
int ret;
data = rcu_dereference_protected(mvm->baid_map[baid],
lockdep_is_held(&mvm->mutex));
if (!data)
continue;
if (!(data->sta_mask & old_sta_mask))
continue;
WARN_ONCE(data->sta_mask != old_sta_mask,
"BAID data for %d corrupted - expected 0x%x found 0x%x\n",
baid, old_sta_mask, data->sta_mask);
cmd.modify.tid = cpu_to_le32(data->tid);
ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, sizeof(cmd), &cmd);
data->sta_mask = new_sta_mask;
if (ret)
return ret;
}
return 0;
}
static int iwl_mvm_mld_update_sta_resources(struct iwl_mvm *mvm,
struct ieee80211_sta *sta,
u32 old_sta_mask,
u32 new_sta_mask)
{
int ret;
ret = iwl_mvm_mld_update_sta_queues(mvm, sta,
old_sta_mask,
new_sta_mask);
if (ret)
return ret;
return iwl_mvm_mld_update_sta_baids(mvm, old_sta_mask, new_sta_mask);
}
int iwl_mvm_mld_update_sta_links(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
@ -987,9 +1045,10 @@ int iwl_mvm_mld_update_sta_links(struct iwl_mvm *mvm,
}
if (sta_mask_to_rem) {
ret = iwl_mvm_mld_update_sta_queue(mvm, mvm_sta,
current_sta_mask,
current_sta_mask & ~sta_mask_to_rem);
ret = iwl_mvm_mld_update_sta_resources(mvm, sta,
current_sta_mask,
current_sta_mask &
~sta_mask_to_rem);
if (WARN_ON(ret))
goto err;
@ -1064,9 +1123,10 @@ int iwl_mvm_mld_update_sta_links(struct iwl_mvm *mvm,
}
if (sta_mask_added) {
ret = iwl_mvm_mld_update_sta_queue(mvm, mvm_sta,
current_sta_mask,
current_sta_mask | sta_mask_added);
ret = iwl_mvm_mld_update_sta_resources(mvm, sta,
current_sta_mask,
current_sta_mask |
sta_mask_added);
if (WARN_ON(ret))
goto err;
}