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Commit 946783ce authored by Yeshwanth Sriram Guntuka's avatar Yeshwanth Sriram Guntuka Committed by Madan Koyyalamudi
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qcacld-3.0: Don't reset tcp_adv_win_scale if any adapter is conn 

In connected STA scenario, tcp_adv_win_scale is reset to 1
on runtime suspend. If any TCP connection gets initiated, the
SYN packet will cause a runtime resume. The bus bandwidth
work gets scheduled ~100msecs after resume is done. This
can result in a smaller TCP window value to get used for
the TCP connection initially and the window size does not
increase even with tcp_adv_win_scale updated to 2 as part
of bus bandwidth work.

Fix is to not reset the tcp_adv_win_scale config if any
adapter is connected on runtime suspend.

Change-Id: If10a1e1fd0efc8217f8136a60cfb01b03485a21d
CRs-Fixed: 2969041
parent db7bc757

core/hdd/src/wlan_hdd_main.c

+7 −2
Original line number Diff line number Diff line
@@ -15941,12 +15941,17 @@ void hdd_bus_bw_compute_timer_try_start(struct hdd_context *hdd_ctx) 


static void __hdd_bus_bw_compute_timer_stop(struct hdd_context *hdd_ctx)

{

	bool is_any_adapter_conn = hdd_is_any_adapter_connected(hdd_ctx);



	if (!qdf_periodic_work_stop_sync(&hdd_ctx->bus_bw_work))

		goto exit;



	ucfg_ipa_set_perf_level(hdd_ctx->pdev, 0, 0);

	hdd_reset_tcp_delack(hdd_ctx);



	if (!is_any_adapter_conn)

		hdd_reset_tcp_adv_win_scale(hdd_ctx);



	cdp_pdev_reset_driver_del_ack(cds_get_context(QDF_MODULE_ID_SOC),

				      OL_TXRX_PDEV_ID);

	cdp_pdev_reset_bundle_require_flag(cds_get_context(QDF_MODULE_ID_SOC),
@@ -15958,7 +15963,7 @@ static void __hdd_bus_bw_compute_timer_stop(struct hdd_context *hdd_ctx) 
	 * stopped. We should remove the bus bw voting, if no adapter is

	 * connected

	 */

	if (!hdd_is_any_adapter_connected(hdd_ctx)) {

	if (!is_any_adapter_conn) {

		qdf_atomic_set(&hdd_ctx->num_latency_critical_clients, 0);

		hdd_ctx->cur_vote_level = PLD_BUS_WIDTH_NONE;

		pld_request_bus_bandwidth(hdd_ctx->parent_dev,