* supported by HW.
* @max_nan_de_entries: maximum number of NAN DE functions supported by the
* device.
+ *
+ * @tx_sk_pacing_shift: Pacing shift to set on TCP sockets when frames from
+ * them are encountered. The default should typically not be changed,
+ * unless the driver has good reasons for needing more buffers.
*/
struct ieee80211_hw {
struct ieee80211_conf conf;
u8 n_cipher_schemes;
const struct ieee80211_cipher_scheme *cipher_schemes;
u8 max_nan_de_entries;
+ u8 tx_sk_pacing_shift;
};
static inline bool _ieee80211_hw_check(struct ieee80211_hw *hw,
local->ops = ops;
local->use_chanctx = use_chanctx;
+ /*
+ * We need a bit of data queued to build aggregates properly, so
+ * instruct the TCP stack to allow more than a single ms of data
+ * to be queued in the stack. The value is a bit-shift of 1
+ * second, so 8 is ~4ms of queued data. Only affects local TCP
+ * sockets.
+ * This is the default, anyhow - drivers may need to override it
+ * for local reasons (longer buffers, longer completion time, or
+ * similar).
+ */
+ local->hw.tx_sk_pacing_shift = 8;
+
/* set up some defaults */
local->hw.queues = 1;
local->hw.max_rates = 1;
if (!IS_ERR_OR_NULL(sta)) {
struct ieee80211_fast_tx *fast_tx;
- /* We need a bit of data queued to build aggregates properly, so
- * instruct the TCP stack to allow more than a single ms of data
- * to be queued in the stack. The value is a bit-shift of 1
- * second, so 8 is ~4ms of queued data. Only affects local TCP
- * sockets.
- */
- sk_pacing_shift_update(skb->sk, 8);
+ sk_pacing_shift_update(skb->sk, sdata->local->hw.tx_sk_pacing_shift);
fast_tx = rcu_dereference(sta->fast_tx);