iwlwifi: mvm: add a debugfs entry to set a fixed size AMSDU for all TX packets (af2984e9) · Commits · 戴 / test

drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c

+45 −1

Original line number	Diff line number	Diff line
		@@ -467,6 +467,46 @@ static ssize_t iwl_dbgfs_rs_data_read(struct file file, char __user user_buf,
		return ret;
		}

		static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_sta *sta,
		char *buf, size_t count,
		loff_t *ppos)
		{
		struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
		int i;
		u16 amsdu_len;

		if (kstrtou16(buf, 0, &amsdu_len))
		return -EINVAL;

		if (amsdu_len) {
		mvmsta->orig_amsdu_len = sta->max_amsdu_len;
		sta->max_amsdu_len = amsdu_len;
		for (i = 0; i < ARRAY_SIZE(sta->max_tid_amsdu_len); i++)
		sta->max_tid_amsdu_len[i] = amsdu_len;
		} else {
		sta->max_amsdu_len = mvmsta->orig_amsdu_len;
		mvmsta->orig_amsdu_len = 0;
		}
		return count;
		}

		static ssize_t iwl_dbgfs_amsdu_len_read(struct file *file,
		char __user *user_buf,
		size_t count, loff_t *ppos)
		{
		struct ieee80211_sta *sta = file->private_data;
		struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);

		char buf[32];
		int pos;

		pos = scnprintf(buf, sizeof(buf), "current %d ", sta->max_amsdu_len);
		pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n",
		mvmsta->orig_amsdu_len);

		return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
		}

		static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
		char __user *user_buf,
		size_t count, loff_t *ppos)
		@@ -1891,6 +1931,8 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
		MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
		#endif

		MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16);

		MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32);

		static ssize_t iwl_dbgfs_mem_read(struct file file, char __user user_buf,
		@@ -2032,9 +2074,11 @@ void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw,
		{
		struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);

		if (iwl_mvm_has_tlc_offload(mvm))
		if (iwl_mvm_has_tlc_offload(mvm)) {
		MVM_DEBUGFS_ADD_STA_FILE(rs_data, dir, 0400);
		}
		MVM_DEBUGFS_ADD_STA_FILE(amsdu_len, dir, 0600);
		}

		void iwl_mvm_dbgfs_register(struct iwl_mvm mvm, struct dentry dbgfs_dir)
		{

drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -344,7 +344,7 @@ void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm,
		lq_sta->last_rate_n_flags);
		}

		if (flags & IWL_TLC_NOTIF_FLAG_AMSDU) {
		if (flags & IWL_TLC_NOTIF_FLAG_AMSDU && !mvmsta->orig_amsdu_len) {
		u16 size = le32_to_cpu(notif->amsdu_size);
		int i;

drivers/net/wireless/intel/iwlwifi/mvm/sta.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -386,6 +386,9 @@ struct iwl_mvm_rxq_dup_data {
		* @amsdu_enabled: bitmap of TX AMSDU allowed TIDs.
		* In case TLC offload is not active it is either 0xFFFF or 0.
		* @max_amsdu_len: max AMSDU length
		* @orig_amsdu_len: used to save the original amsdu_len when it is changed via
		* debugfs. If it's set to 0, it means that it is it's not set via
		* debugfs.
		* @agg_tids: bitmap of tids whose status is operational aggregated (IWL_AGG_ON)
		* @sleep_tx_count: the number of frames that we told the firmware to let out
		* even when that station is asleep. This is useful in case the queue
		@@ -434,6 +437,7 @@ struct iwl_mvm_sta {
		bool disable_tx;
		u16 amsdu_enabled;
		u16 max_amsdu_len;
		u16 orig_amsdu_len;
		bool sleeping;
		u8 agg_tids;
		u8 sleep_tx_count;

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