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path: root/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
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Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/tx.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/tx.c104
1 files changed, 64 insertions, 40 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index 898dca393643..674ddf951b79 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -262,8 +262,42 @@ static u32 iwl_mvm_get_tx_ant(struct iwl_mvm *mvm,
return BIT(mvm->mgmt_last_antenna_idx) << RATE_MCS_ANT_POS;
}
+static u32 iwl_mvm_convert_rate_idx(struct iwl_mvm *mvm,
+ struct ieee80211_tx_info *info,
+ int rate_idx)
+{
+ u32 rate_flags = 0;
+ u8 rate_plcp;
+ bool is_cck;
+
+ /* if the rate isn't a well known legacy rate, take the lowest one */
+ if (rate_idx < 0 || rate_idx >= IWL_RATE_COUNT_LEGACY)
+ rate_idx = iwl_mvm_mac_ctxt_get_lowest_rate(mvm,
+ info,
+ info->control.vif);
+
+ /* Get PLCP rate for tx_cmd->rate_n_flags */
+ rate_plcp = iwl_mvm_mac80211_idx_to_hwrate(mvm->fw, rate_idx);
+ is_cck = (rate_idx >= IWL_FIRST_CCK_RATE) &&
+ (rate_idx <= IWL_LAST_CCK_RATE);
+
+ /* Set CCK or OFDM flag */
+ if (iwl_fw_lookup_cmd_ver(mvm->fw, TX_CMD, 0) > 8) {
+ if (!is_cck)
+ rate_flags |= RATE_MCS_LEGACY_OFDM_MSK;
+ else
+ rate_flags |= RATE_MCS_CCK_MSK;
+ } else if (is_cck) {
+ rate_flags |= RATE_MCS_CCK_MSK_V1;
+ }
+
+ return (u32)rate_plcp | rate_flags;
+}
+
static u32 iwl_mvm_get_inject_tx_rate(struct iwl_mvm *mvm,
- struct ieee80211_tx_info *info)
+ struct ieee80211_tx_info *info,
+ struct ieee80211_sta *sta,
+ __le16 fc)
{
struct ieee80211_tx_rate *rate = &info->control.rates[0];
u32 result;
@@ -288,6 +322,9 @@ static u32 iwl_mvm_get_inject_tx_rate(struct iwl_mvm *mvm,
result |= u32_encode_bits(2, RATE_MCS_CHAN_WIDTH_MSK_V1);
else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
result |= u32_encode_bits(3, RATE_MCS_CHAN_WIDTH_MSK_V1);
+
+ if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, TX_CMD, 0) > 6)
+ result = iwl_new_rate_from_v1(result);
} else if (rate->flags & IEEE80211_TX_RC_MCS) {
result = RATE_MCS_HT_MSK_V1;
result |= u32_encode_bits(rate->idx,
@@ -301,12 +338,21 @@ static u32 iwl_mvm_get_inject_tx_rate(struct iwl_mvm *mvm,
result |= RATE_MCS_LDPC_MSK_V1;
if (u32_get_bits(info->flags, IEEE80211_TX_CTL_STBC))
result |= RATE_MCS_STBC_MSK;
+
+ if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, TX_CMD, 0) > 6)
+ result = iwl_new_rate_from_v1(result);
} else {
- return 0;
+ int rate_idx = info->control.rates[0].idx;
+
+ result = iwl_mvm_convert_rate_idx(mvm, info, rate_idx);
}
- if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, TX_CMD, 0) > 6)
- return iwl_new_rate_from_v1(result);
+ if (info->control.antennas)
+ result |= u32_encode_bits(info->control.antennas,
+ RATE_MCS_ANT_AB_MSK);
+ else
+ result |= iwl_mvm_get_tx_ant(mvm, info, sta, fc);
+
return result;
}
@@ -315,17 +361,8 @@ static u32 iwl_mvm_get_tx_rate(struct iwl_mvm *mvm,
struct ieee80211_sta *sta, __le16 fc)
{
int rate_idx = -1;
- u8 rate_plcp;
- u32 rate_flags = 0;
- bool is_cck;
-
- if (unlikely(info->control.flags & IEEE80211_TX_CTRL_RATE_INJECT)) {
- u32 result = iwl_mvm_get_inject_tx_rate(mvm, info);
- if (result)
- return result;
- rate_idx = info->control.rates[0].idx;
- } else if (!ieee80211_hw_check(mvm->hw, HAS_RATE_CONTROL)) {
+ if (!ieee80211_hw_check(mvm->hw, HAS_RATE_CONTROL)) {
/* info->control is only relevant for non HW rate control */
/* HT rate doesn't make sense for a non data frame */
@@ -350,33 +387,16 @@ static u32 iwl_mvm_get_tx_rate(struct iwl_mvm *mvm,
BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0);
}
- /* if the rate isn't a well known legacy rate, take the lowest one */
- if (rate_idx < 0 || rate_idx >= IWL_RATE_COUNT_LEGACY)
- rate_idx = iwl_mvm_mac_ctxt_get_lowest_rate(mvm,
- info,
- info->control.vif);
-
- /* Get PLCP rate for tx_cmd->rate_n_flags */
- rate_plcp = iwl_mvm_mac80211_idx_to_hwrate(mvm->fw, rate_idx);
- is_cck = (rate_idx >= IWL_FIRST_CCK_RATE) && (rate_idx <= IWL_LAST_CCK_RATE);
-
- /* Set CCK or OFDM flag */
- if (iwl_fw_lookup_cmd_ver(mvm->fw, TX_CMD, 0) > 8) {
- if (!is_cck)
- rate_flags |= RATE_MCS_LEGACY_OFDM_MSK;
- else
- rate_flags |= RATE_MCS_CCK_MSK;
- } else if (is_cck) {
- rate_flags |= RATE_MCS_CCK_MSK_V1;
- }
-
- return (u32)rate_plcp | rate_flags;
+ return iwl_mvm_convert_rate_idx(mvm, info, rate_idx);
}
static u32 iwl_mvm_get_tx_rate_n_flags(struct iwl_mvm *mvm,
struct ieee80211_tx_info *info,
struct ieee80211_sta *sta, __le16 fc)
{
+ if (unlikely(info->control.flags & IEEE80211_TX_CTRL_RATE_INJECT))
+ return iwl_mvm_get_inject_tx_rate(mvm, info, sta, fc);
+
return iwl_mvm_get_tx_rate(mvm, info, sta, fc) |
iwl_mvm_get_tx_ant(mvm, info, sta, fc);
}
@@ -536,16 +556,20 @@ iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb,
flags |= IWL_TX_FLAGS_ENCRYPT_DIS;
/*
- * For data packets rate info comes from the fw. Only
- * set rate/antenna during connection establishment or in case
- * no station is given.
+ * For data and mgmt packets rate info comes from the fw. Only
+ * set rate/antenna for injected frames with fixed rate, or
+ * when no sta is given.
*/
- if (!sta || !ieee80211_is_data(hdr->frame_control) ||
- mvmsta->sta_state < IEEE80211_STA_AUTHORIZED) {
+ if (unlikely(!sta ||
+ info->control.flags & IEEE80211_TX_CTRL_RATE_INJECT)) {
flags |= IWL_TX_FLAGS_CMD_RATE;
rate_n_flags =
iwl_mvm_get_tx_rate_n_flags(mvm, info, sta,
hdr->frame_control);
+ } else if (!ieee80211_is_data(hdr->frame_control) ||
+ mvmsta->sta_state < IEEE80211_STA_AUTHORIZED) {
+ /* These are important frames */
+ flags |= IWL_TX_FLAGS_HIGH_PRI;
}
if (mvm->trans->trans_cfg->device_family >=
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-13 07:24:02 +0300