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Re: [PATCH v2 2/2] brcmfmac: make firmware frameburst mode a module parameter

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On 11/2/2018 9:24 AM, Wright Feng wrote:
This patch is for adding a new module parameter "frameburst".
With setting "frameburst=1" in module parameters, firmware frameburst mode
will be enabled. The feature can enable per-packet framebursting in
firmware side and get higher TX throughput in High Throughput(HT) mode.

So why not always enable it in firmware as it seems to be the default in recent firmware anyway.

Regards,
Arend

Signed-off-by: Wright Feng <wright.feng@xxxxxxxxxxx>
---
 .../net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c    | 7 +++++++
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c  | 5 +++++
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h  | 2 ++
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h    | 1 +
 4 files changed, 15 insertions(+)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 230a378c26fc..4a05d3f50cff 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -6638,6 +6638,13 @@ static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)

 	brcmf_configure_arp_nd_offload(ifp, true);

+	if (ifp->drvr->settings->frameburst) {
+		err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_FAKEFRAG, 1);
+			if (err)
+				brcmf_info("setting frameburst mode failed\n");
+		brcmf_dbg(INFO, "frameburst mode enabled\n");
+	}
+
 	cfg->dongle_up = true;
 default_conf_out:

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
index 94044a7a6021..0ad4c3196e5d 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -78,6 +78,10 @@ static int brcmf_iapp_enable;
 module_param_named(iapp, brcmf_iapp_enable, int, 0);
 MODULE_PARM_DESC(iapp, "Enable partial support for the obsoleted Inter-Access Point Protocol");

+static int brcmf_frameburst;
+module_param_named(frameburst, brcmf_frameburst, int, 0);
+MODULE_PARM_DESC(frameburst, "Enable firmware frameburst feature");
+
 #ifdef DEBUG
 /* always succeed brcmf_bus_started() */
 static int brcmf_ignore_probe_fail;
@@ -419,6 +423,7 @@ struct brcmf_mp_device *brcmf_get_module_param(struct device *dev,
 	settings->fcmode = brcmf_fcmode;
 	settings->roamoff = !!brcmf_roamoff;
 	settings->iapp = !!brcmf_iapp_enable;
+	settings->frameburst = !!brcmf_frameburst;
 #ifdef DEBUG
 	settings->ignore_probe_fail = !!brcmf_ignore_probe_fail;
 #endif
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
index a34642cb4d2f..b91975258a68 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
@@ -47,6 +47,7 @@ extern struct brcmf_mp_global_t brcmf_mp_global;
  * @feature_disable: Feature_disable bitmask.
  * @fcmode: FWS flow control.
  * @roamoff: Firmware roaming off?
+ * @frameburst: Firmware frame burst mode.
  * @ignore_probe_fail: Ignore probe failure.
  * @country_codes: If available, pointer to struct for translating country codes
  * @bus: Bus specific platform data. Only SDIO at the mmoment.
@@ -57,6 +58,7 @@ struct brcmf_mp_device {
 	int		fcmode;
 	bool		roamoff;
 	bool		iapp;
+	bool		frameburst;
 	bool		ignore_probe_fail;
 	struct brcmfmac_pd_cc *country_codes;
 	union {
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h
index 63b1287e2e6d..b6b183b18413 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h
@@ -80,6 +80,7 @@
 #define BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON	201
 #define BRCMF_C_SET_ASSOC_PREFER		205
 #define BRCMF_C_GET_VALID_CHANNELS		217
+#define BRCMF_C_SET_FAKEFRAG			219
 #define BRCMF_C_GET_KEY_PRIMARY			235
 #define BRCMF_C_SET_KEY_PRIMARY			236
 #define BRCMF_C_SET_SCAN_PASSIVE_TIME		258





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