qcacld-3.0: Add ini support for tcp_adv_win_scale
WLAN driver changes this system paramerter (via cnss-daemon) when the RX
throughput requirement changes LOW->HIGH or HIGH->LOW. This depends on
the whether the number of RX packets received in last 100ms interval is
greater than 500 or not. The 100ms and 500 thresh params are
configurable via WLAN ini file WCNSS_qcom_cfg.ini.
Add ini support to enable/disable changing of this system parameter by
WLAN driver. Since tcp_adv_win_scale is a system parameter, some
customers may not want the WLAN driver to change it and may want to set
their own default values.
"gTcpAdvWinScaleEnable=0" when added to the ini file will prevent
the driver from making any changes to the system parameter
"/proc/sys/net/ipv4/tcp_adv_win_scale". The default value of the ini
file param gTcpAdvWinScaleEnable is "1".
CRs-Fixed: 2033338
Change-Id: I19288bba11841cf176118abaf08ccaabaf2f79b9
diff --git a/core/hdd/src/wlan_hdd_cfg.c b/core/hdd/src/wlan_hdd_cfg.c
index c79da6d..96bbd55 100644
--- a/core/hdd/src/wlan_hdd_cfg.c
+++ b/core/hdd/src/wlan_hdd_cfg.c
@@ -3210,6 +3210,13 @@
CFG_BUS_BANDWIDTH_COMPUTE_INTERVAL_MIN,
CFG_BUS_BANDWIDTH_COMPUTE_INTERVAL_MAX),
+ REG_VARIABLE(CFG_ENABLE_TCP_ADV_WIN_SCALE, WLAN_PARAM_Integer,
+ struct hdd_config, enable_tcp_adv_win_scale,
+ VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+ CFG_ENABLE_TCP_ADV_WIN_SCALE_DEFAULT,
+ CFG_ENABLE_TCP_ADV_WIN_SCALE_MIN,
+ CFG_ENABLE_TCP_ADV_WIN_SCALE_MAX),
+
REG_VARIABLE(CFG_ENABLE_TCP_DELACK, WLAN_PARAM_Integer,
struct hdd_config, enable_tcp_delack,
VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
@@ -6572,6 +6579,9 @@
hdd_debug("Name = [gbusBandwidthComputeInterval] Value = [%u] ",
hdd_ctx->config->busBandwidthComputeInterval);
hdd_debug("Name = [%s] Value = [%u] ",
+ CFG_ENABLE_TCP_ADV_WIN_SCALE,
+ hdd_ctx->config->enable_tcp_adv_win_scale);
+ hdd_debug("Name = [%s] Value = [%u] ",
CFG_ENABLE_TCP_DELACK,
hdd_ctx->config->enable_tcp_delack);
hdd_debug("Name = [gTcpDelAckThresholdHigh] Value = [%u] ",