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wifi: iwlwifi: mvm: track station mask for BAIDs 

When we have MLO connections, a BAID applies to multiple
firmware stations. Track the station mask instead of the
station ID, getting rid of a few more deflink cases and
preparing for handling link switching for BAIDs.

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.c08523808c34.I719b7bba499648d1495ed3e3a90889d4732ef15d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2023-04-16 15:47:34 +03:00
parent ef3ed33dfc
commit 9aa3856d9b
3 changed files with 36 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
View File

@ -680,7 +680,7 @@ __aligned(roundup_pow_of_two(sizeof(struct _iwl_mvm_reorder_buf_entry)))
/**
* struct iwl_mvm_baid_data - BA session data
* @sta_id: station id
* @sta_mask: current station mask for the BAID
* @tid: tid of the session
* @baid baid of the session
* @timeout: the timeout set in the addba request
@ -694,7 +694,7 @@ __aligned(roundup_pow_of_two(sizeof(struct _iwl_mvm_reorder_buf_entry)))
*/
struct iwl_mvm_baid_data {
struct rcu_head rcu_head;
u8 sta_id;
u32 sta_mask;
u8 tid;
u8 baid;
u16 timeout;

34
drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
View File

@ -705,7 +705,7 @@ void iwl_mvm_reorder_timer_expired(struct timer_list *t)
if (expired) {
struct ieee80211_sta *sta;
struct iwl_mvm_sta *mvmsta;
u8 sta_id = baid_data->sta_id;
u8 sta_id = ffs(baid_data->sta_mask) - 1;
rcu_read_lock();
sta = rcu_dereference(buf->mvm->fw_id_to_mac_id[sta_id]);
@ -740,6 +740,7 @@ static void iwl_mvm_del_ba(struct iwl_mvm *mvm, int queue,
struct ieee80211_sta *sta;
struct iwl_mvm_reorder_buffer *reorder_buf;
u8 baid = data->baid;
u32 sta_id;
if (WARN_ONCE(baid >= IWL_MAX_BAID, "invalid BAID: %x\n", baid))
return;
@ -750,7 +751,9 @@ static void iwl_mvm_del_ba(struct iwl_mvm *mvm, int queue,
if (WARN_ON_ONCE(!ba_data))
goto out;
sta = rcu_dereference(mvm->fw_id_to_mac_id[ba_data->sta_id]);
/* pick any STA ID to find the pointer */
sta_id = ffs(ba_data->sta_mask) - 1;
sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))
goto out;
@ -777,6 +780,7 @@ static void iwl_mvm_release_frames_from_notif(struct iwl_mvm *mvm,
struct ieee80211_sta *sta;
struct iwl_mvm_reorder_buffer *reorder_buf;
struct iwl_mvm_baid_data *ba_data;
u32 sta_id;
IWL_DEBUG_HT(mvm, "Frame release notification for BAID %u, NSSN %d\n",
baid, nssn);
@ -794,7 +798,9 @@ static void iwl_mvm_release_frames_from_notif(struct iwl_mvm *mvm,
goto out;
}
sta = rcu_dereference(mvm->fw_id_to_mac_id[ba_data->sta_id]);
/* pick any STA ID to find the pointer */
sta_id = ffs(ba_data->sta_mask) - 1;
sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))
goto out;
@ -935,7 +941,6 @@ static bool iwl_mvm_reorder(struct iwl_mvm *mvm,
{
struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_hdr *hdr = (void *)skb_mac_header(skb);
struct iwl_mvm_sta *mvm_sta;
struct iwl_mvm_baid_data *baid_data;
struct iwl_mvm_reorder_buffer *buffer;
struct sk_buff *tail;
@ -947,6 +952,7 @@ static bool iwl_mvm_reorder(struct iwl_mvm *mvm,
u8 sub_frame_idx = desc->amsdu_info &
IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;
struct iwl_mvm_reorder_buf_entry *entries;
u32 sta_mask;
int index;
u16 nssn, sn;
u8 baid;
@ -969,8 +975,6 @@ static bool iwl_mvm_reorder(struct iwl_mvm *mvm,
"Got valid BAID without a valid station assigned\n"))
return false;
mvm_sta = iwl_mvm_sta_from_mac80211(sta);
/* not a data packet or a bar */
if (!ieee80211_is_back_req(hdr->frame_control) &&
(!ieee80211_is_data_qos(hdr->frame_control) ||
@ -988,11 +992,14 @@ static bool iwl_mvm_reorder(struct iwl_mvm *mvm,
return false;
}
rcu_read_lock();
sta_mask = iwl_mvm_sta_fw_id_mask(mvm, sta, -1);
rcu_read_unlock();
if (WARN(tid != baid_data->tid ||
mvm_sta->deflink.sta_id != baid_data->sta_id,
"baid 0x%x is mapped to sta:%d tid:%d, but was received for sta:%d tid:%d\n",
baid, baid_data->sta_id, baid_data->tid, mvm_sta->deflink.sta_id,
tid))
!(sta_mask & baid_data->sta_mask),
"baid 0x%x is mapped to sta_mask:0x%x tid:%d, but was received for sta_mask:0x%x tid:%d\n",
baid, baid_data->sta_mask, baid_data->tid, sta_mask, tid))
return false;
nssn = reorder & IWL_RX_MPDU_REORDER_NSSN_MASK;
@ -2776,9 +2783,10 @@ void iwl_mvm_rx_bar_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi,
goto out;
}
if (WARN(tid != baid_data->tid || sta_id != baid_data->sta_id,
"baid 0x%x is mapped to sta:%d tid:%d, but BAR release received for sta:%d tid:%d\n",
baid, baid_data->sta_id, baid_data->tid, sta_id,
if (WARN(tid != baid_data->tid || sta_id > IWL_MVM_STATION_COUNT_MAX ||
!(baid_data->sta_mask & BIT(sta_id)),
"baid 0x%x is mapped to sta_mask:0x%x tid:%d, but BAR release received for sta:%d tid:%d\n",
baid, baid_data->sta_mask, baid_data->tid, sta_id,
tid))
goto out;

23
drivers/net/wireless/intel/iwlwifi/mvm/sta.c
View File

@ -251,6 +251,7 @@ static void iwl_mvm_rx_agg_session_expired(struct timer_list *t)
struct ieee80211_sta *sta;
struct iwl_mvm_sta *mvm_sta;
unsigned long timeout;
unsigned int sta_id;
rcu_read_lock();
@ -269,7 +270,8 @@ static void iwl_mvm_rx_agg_session_expired(struct timer_list *t)
}
/* Timer expired */
sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[ba_data->sta_id]);
sta_id = ffs(ba_data->sta_mask) - 1; /* don't care which one */
sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[sta_id]);
/*
* sta should be valid unless the following happens:
@ -2756,10 +2758,11 @@ static void iwl_mvm_init_reorder_buffer(struct iwl_mvm *mvm,
}
static int iwl_mvm_fw_baid_op_sta(struct iwl_mvm *mvm,
struct iwl_mvm_sta *mvm_sta,
struct ieee80211_sta *sta,
bool start, int tid, u16 ssn,
u16 buf_size)
{
struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
struct iwl_mvm_add_sta_cmd cmd = {
.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color),
.sta_id = mvm_sta->deflink.sta_id,
@ -2804,7 +2807,7 @@ static int iwl_mvm_fw_baid_op_sta(struct iwl_mvm *mvm,
}
static int iwl_mvm_fw_baid_op_cmd(struct iwl_mvm *mvm,
struct iwl_mvm_sta *mvm_sta,
struct ieee80211_sta *sta,
bool start, int tid, u16 ssn,
u16 buf_size, int baid)
{
@ -2819,7 +2822,7 @@ static int iwl_mvm_fw_baid_op_cmd(struct iwl_mvm *mvm,
if (start) {
cmd.alloc.sta_id_mask =
cpu_to_le32(BIT(mvm_sta->deflink.sta_id));
cpu_to_le32(iwl_mvm_sta_fw_id_mask(mvm, sta, -1));
cmd.alloc.tid = tid;
cmd.alloc.ssn = cpu_to_le16(ssn);
cmd.alloc.win_size = cpu_to_le16(buf_size);
@ -2829,7 +2832,7 @@ static int iwl_mvm_fw_baid_op_cmd(struct iwl_mvm *mvm,
BUILD_BUG_ON(sizeof(cmd.remove_v1) > sizeof(cmd.remove));
} else {
cmd.remove.sta_id_mask =
cpu_to_le32(BIT(mvm_sta->deflink.sta_id));
cpu_to_le32(iwl_mvm_sta_fw_id_mask(mvm, sta, -1));
cmd.remove.tid = cpu_to_le32(tid);
}
@ -2852,16 +2855,16 @@ static int iwl_mvm_fw_baid_op_cmd(struct iwl_mvm *mvm,
return baid;
}
static int iwl_mvm_fw_baid_op(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvm_sta,
static int iwl_mvm_fw_baid_op(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
bool start, int tid, u16 ssn, u16 buf_size,
int baid)
{
if (fw_has_capa(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_BAID_ML_SUPPORT))
return iwl_mvm_fw_baid_op_cmd(mvm, mvm_sta, start,
return iwl_mvm_fw_baid_op_cmd(mvm, sta, start,
tid, ssn, buf_size, baid);
return iwl_mvm_fw_baid_op_sta(mvm, mvm_sta, start,
return iwl_mvm_fw_baid_op_sta(mvm, sta, start,
tid, ssn, buf_size);
}
@ -2931,7 +2934,7 @@ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
/* Don't send command to remove (start=0) BAID during restart */
if (start || !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
baid = iwl_mvm_fw_baid_op(mvm, mvm_sta, start, tid, ssn, buf_size,
baid = iwl_mvm_fw_baid_op(mvm, sta, start, tid, ssn, buf_size,
baid);
if (baid < 0) {
@ -2953,7 +2956,7 @@ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
iwl_mvm_rx_agg_session_expired, 0);
baid_data->mvm = mvm;
baid_data->tid = tid;
baid_data->sta_id = mvm_sta->deflink.sta_id;
baid_data->sta_mask = iwl_mvm_sta_fw_id_mask(mvm, sta, -1);
mvm_sta->tid_to_baid[tid] = baid;
if (timeout)