From: Sriram R <quic_srirrama@xxxxxxxxxxx>
Since the vdev create for a corresponding vif is deferred
until a channel is assigned, cache the information which
are received through mac80211 ops between add_interface()
and assign_vif_chanctx() and set them once the vdev is
created on one of the ath12k radios as the channel gets
assigned via assign_vif_chanctx().
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Signed-off-by: Sriram R <quic_srirrama@xxxxxxxxxxx>
Co-developed-by: Rameshkumar Sundaram <quic_ramess@xxxxxxxxxxx>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath12k/core.h | 19 +++
drivers/net/wireless/ath/ath12k/mac.c | 162 +++++++++++++++++++------
2 files changed, 147 insertions(+), 34 deletions(-)
diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
index 4dca82da1683..79d2d9d5f720 100644
--- a/drivers/net/wireless/ath/ath12k/core.h
+++ b/drivers/net/wireless/ath/ath12k/core.h
@@ -214,6 +214,24 @@ enum ath12k_monitor_flags {
ATH12K_FLAG_MONITOR_ENABLED,
};
+struct ath12k_tx_conf {
+ bool changed;
+ u16 ac;
+ struct ieee80211_tx_queue_params tx_queue_params;
+};
+
+struct ath12k_key_conf {
+ bool changed;
+ enum set_key_cmd cmd;
+ struct ieee80211_key_conf *key;
+};
+
+struct ath12k_vif_cache {
+ struct ath12k_tx_conf tx_conf;
+ struct ath12k_key_conf key_conf;
+ u32 bss_conf_changed;
+};
+
struct ath12k_vif {
u32 vdev_id;
enum wmi_vdev_type vdev_type;
@@ -268,6 +286,7 @@ struct ath12k_vif {
u8 vdev_stats_id;
u32 punct_bitmap;
bool ps;
+ struct ath12k_vif_cache *cache;
};
struct ath12k_vif_iter {
diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index be36c7d133da..fed9ce490b37 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -3012,6 +3012,20 @@ static void ath12k_mac_bss_info_changed(struct ath12k *ar,
}
}
+static struct ath12k_vif_cache *ath12k_arvif_get_cache(struct ath12k_vif *arvif)
+{
+ if (!arvif->cache)
+ arvif->cache = kzalloc(sizeof(*arvif->cache), GFP_KERNEL);
+
+ return arvif->cache;
+}
+
+static void ath12k_arvif_put_cache(struct ath12k_vif *arvif)
+{
+ kfree(arvif->cache);
+ arvif->cache = NULL;
+}
+
static void ath12k_mac_op_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info,
@@ -3019,15 +3033,21 @@ static void ath12k_mac_op_bss_info_changed(struct ieee80211_hw *hw,
{
struct ath12k *ar;
struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
+ struct ath12k_vif_cache *cache;
ar = ath12k_get_ar_by_vif(hw, vif);
- /* TODO if the vdev is not created on a certain radio,
+ /* if the vdev is not created on a certain radio,
* cache the info to be updated later on vdev creation
*/
- if (!ar)
+ if (!ar) {
+ cache = ath12k_arvif_get_cache(arvif);
+ if (!cache)
+ return;
+ arvif->cache->bss_conf_changed |= changed;
return;
+ }
mutex_lock(&ar->conf_mutex);
@@ -3518,12 +3538,11 @@ static int ath12k_clear_peer_keys(struct ath12k_vif *arvif,
return first_errno;
}
-static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
- struct ieee80211_vif *vif, struct ieee80211_sta *sta,
- struct ieee80211_key_conf *key)
+static int ath12k_mac_set_key(struct ath12k *ar, enum set_key_cmd cmd,
+ struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key)
{
- struct ath12k *ar;
- struct ath12k_base *ab;
+ struct ath12k_base *ab = ar->ab;
struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
struct ath12k_peer *peer;
struct ath12k_sta *arsta;
@@ -3531,28 +3550,11 @@ static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
int ret = 0;
u32 flags = 0;
- /* BIP needs to be done in software */
- if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
- key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
- key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 ||
- key->cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256)
- return 1;
-
- ar = ath12k_get_ar_by_vif(hw, vif);
- if (!ar) {
- WARN_ON_ONCE(1);
- return -EINVAL;
- }
- ab = ar->ab;
+ lockdep_assert_held(&ar->conf_mutex);
- if (test_bit(ATH12K_FLAG_HW_CRYPTO_DISABLED, &ar->ab->dev_flags))
+ if (test_bit(ATH12K_FLAG_HW_CRYPTO_DISABLED, &ab->dev_flags))
return 1;
- if (key->keyidx > WMI_MAX_KEY_INDEX)
- return -ENOSPC;
-
- mutex_lock(&ar->conf_mutex);
-
if (sta)
peer_addr = sta->addr;
else if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
@@ -3644,6 +3646,47 @@ static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
spin_unlock_bh(&ab->base_lock);
exit:
+ return ret;
+}
+
+static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+ struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key)
+{
+ struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
+ struct ath12k_vif_cache *cache;
+ struct ath12k *ar;
+ int ret;
+
+ /* BIP needs to be done in software */
+ if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
+ key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
+ key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 ||
+ key->cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256)
+ return 1;
+
+ if (key->keyidx > WMI_MAX_KEY_INDEX)
+ return -ENOSPC;
+
+ ar = ath12k_get_ar_by_vif(hw, vif);
+ if (!ar) {
+ /* ar is expected to be valid when sta ptr is available */
+ if (sta) {
+ WARN_ON_ONCE(1);
+ return -EINVAL;
+ }
+
+ cache = ath12k_arvif_get_cache(arvif);
+ if (!cache)
+ return -ENOSPC;
+ cache->key_conf.cmd = cmd;
+ cache->key_conf.key = key;
+ cache->key_conf.changed = true;
+ return 0;
+ }
+
+ mutex_lock(&ar->conf_mutex);
+ ret = ath12k_mac_set_key(ar, cmd, vif, sta, key);
mutex_unlock(&ar->conf_mutex);
return ret;
}
@@ -4474,12 +4517,19 @@ static int ath12k_mac_op_conf_tx(struct ieee80211_hw *hw,
{
struct ath12k *ar;
struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
+ struct ath12k_vif_cache *cache = arvif->cache;
int ret;
ar = ath12k_get_ar_by_vif(hw, vif);
if (!ar) {
- /* TODO cache the info and apply after vdev is created */
- return -EINVAL;
+ /* cache the info and apply after vdev is created */
+ cache = ath12k_arvif_get_cache(arvif);
+ if (!cache)
+ return -ENOSPC;
+ cache->tx_conf.changed = true;
+ cache->tx_conf.ac = ac;
+ cache->tx_conf.tx_queue_params = *params;
+ return 0;
}
mutex_lock(&ar->conf_mutex);
@@ -6122,6 +6172,43 @@ static int ath12k_mac_vdev_create(struct ath12k *ar, struct ieee80211_vif *vif)
return ret;
}
+static void ath12k_mac_vif_cache_flush(struct ath12k *ar, struct ieee80211_vif *vif)
+{
+ struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
+ struct ath12k_vif_cache *cache = arvif->cache;
+ struct ath12k_base *ab = ar->ab;
+
+ int ret;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ if (!cache)
+ return;
+
+ if (cache->tx_conf.changed) {
+ ret = ath12k_mac_conf_tx(arvif, 0, cache->tx_conf.ac,
+ &cache->tx_conf.tx_queue_params);
+ if (ret)
+ ath12k_warn(ab,
+ "unable to apply tx config parameters to vdev %d\n",
+ ret);
+ }
+
+ if (cache->bss_conf_changed) {
+ ath12k_mac_bss_info_changed(ar, arvif, &vif->bss_conf,
+ cache->bss_conf_changed);
+ }
+
+ if (cache->key_conf.changed) {
+ ret = ath12k_mac_set_key(ar, cache->key_conf.cmd, vif, NULL,
+ cache->key_conf.key);
+ if (ret)
+ ath12k_warn(ab, "unable to apply set key param to vdev %d ret %d\n",
+ arvif->vdev_id, ret);
+ }
+ ath12k_arvif_put_cache(arvif);
+}
+
static struct ath12k *ath12k_mac_assign_vif_to_vdev(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_chanctx_conf *ctx)
@@ -6176,11 +6263,11 @@ static struct ath12k *ath12k_mac_assign_vif_to_vdev(struct ieee80211_hw *hw,
ab = ar->ab;
- if (arvif->is_created)
- goto out;
-
mutex_lock(&ar->conf_mutex);
+ if (arvif->is_created)
+ goto flush;
+
if (vif->type == NL80211_IFTYPE_AP &&
ar->num_peers > (ar->max_num_peers - 1)) {
ath12k_warn(ab, "failed to create vdev due to insufficient peer entry resource in firmware\n");
@@ -6199,13 +6286,14 @@ static struct ath12k *ath12k_mac_assign_vif_to_vdev(struct ieee80211_hw *hw,
goto unlock;
}
- /* TODO If the vdev is created during channel assign and not during
+flush:
+ /* If the vdev is created during channel assign and not during
* add_interface(), Apply any parameters for the vdev which were received
* after add_interface, corresponding to this vif.
*/
+ ath12k_mac_vif_cache_flush(ar, vif);
unlock:
mutex_unlock(&ar->conf_mutex);
-out:
return arvif->ar;
}
@@ -6314,6 +6402,7 @@ static int ath12k_mac_vdev_delete(struct ath12k *ar, struct ieee80211_vif *vif)
spin_unlock_bh(&ar->data_lock);
ath12k_peer_cleanup(ar, arvif->vdev_id);
+ ath12k_arvif_put_cache(arvif);
idr_for_each(&ar->txmgmt_idr,
ath12k_mac_vif_txmgmt_idr_remove, vif);
@@ -6340,8 +6429,13 @@ static void ath12k_mac_op_remove_interface(struct ieee80211_hw *hw,
struct ath12k *ar;
int ret;
- if (!arvif->is_created)
+ if (!arvif->is_created) {
+ /* if we cached some config but never received assign chanctx,
+ * free the allocated cache.
+ */
+ ath12k_arvif_put_cache(arvif);
return;
+ }
ar = arvif->ar;
ab = ar->ab;
--
2.25.1
