[PATCH v2 0/7] wcn36xx: Tidy up BSS/STA config

[PATCH v2 0/7] wcn36xx: Tidy up BSS/STA config

[Bryan O'Donoghue]

This series is three of a set of five to add support for wcn3680 at
802.11ac data-rates.

Both the BSS and STA config paths have redundant/duplicate code and before
adding more code to either it makes sense to reduce/reuse and functionally
decompose as much as possible.

While not strictly necessary to get the wcn3680/80211.ac functioning in
this driver, it seems like a missed opportunity to leave the code as is.

Lets reduce down before adding more.

V2:
- Adds a memset to wcn36xx_smd_config_bss_v1()
  Since we are doing one less kzalloc() we need to make sure we clear
  out the bss config.

V1:
https://lore.kernel.org/linux-wireless/87eensldhi.fsf@codeaurora.org/T/#t

Bryan O'Donoghue (7):
  wcn36xx: Functionally decompose wcn36xx_smd_config_sta()
  wcn36xx: Move wcn36xx_smd_set_sta_params() inside
    wcn36xx_smd_config_bss()
  wcn36xx: Move BSS parameter setup to wcn36xx_smd_set_bss_params()
  wcn36xx: Add wcn36xx_smd_config_bss_v0
  wcn36xx: Update wcn36xx_smd_config_bss_v1() to operate internally
  wcn36xx: Convert to using wcn36xx_smd_config_bss_v0()
  wcn36xx: Remove dead code in wcn36xx_smd_config_bss()

 drivers/net/wireless/ath/wcn36xx/smd.c | 416 ++++++++++++++-----------
 1 file changed, 227 insertions(+), 189 deletions(-)

-- 
2.27.0

[PATCH v2 1/7] wcn36xx: Functionally decompose wcn36xx_smd_config_sta()

[Bryan O'Donoghue]

This commit functionally decomposes wcn36xx_smd_config_sta into a clearly
defined wcn36xx_smd_config_sta_v0 and wcn36xx_smd_config_sta_v1 path.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 53 ++++++++++++++++----------
 1 file changed, 32 insertions(+), 21 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index 97fb47a8bc1a..e8c2f4a152b4 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -1312,10 +1312,11 @@ static int wcn36xx_smd_config_sta_rsp(struct wcn36xx *wcn,
 }
 
 static int wcn36xx_smd_config_sta_v1(struct wcn36xx *wcn,
-		     const struct wcn36xx_hal_config_sta_req_msg *orig)
+				     struct ieee80211_vif *vif,
+				     struct ieee80211_sta *sta)
 {
 	struct wcn36xx_hal_config_sta_req_msg_v1 msg_body;
-	struct wcn36xx_hal_config_sta_params_v1 *sta = &msg_body.sta_params;
+	struct wcn36xx_hal_config_sta_params_v1 *sta_params;
 
 	if (wcn->rf_id == RF_IRIS_WCN3680) {
 		INIT_HAL_MSG_V1(msg_body, WCN36XX_HAL_CONFIG_STA_REQ);
@@ -1324,46 +1325,56 @@ static int wcn36xx_smd_config_sta_v1(struct wcn36xx *wcn,
 		msg_body.header.len -= WCN36XX_DIFF_STA_PARAMS_V1_NOVHT;
 	}
 
-	wcn36xx_smd_convert_sta_to_v1(wcn, &orig->sta_params,
-				      &msg_body.sta_params);
+	sta_params = &msg_body.sta_params;
+
+	wcn36xx_smd_set_sta_params_v1(wcn, vif, sta, sta_params);
 
 	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
 
 	wcn36xx_dbg(WCN36XX_DBG_HAL,
 		    "hal config sta v1 action %d sta_index %d bssid_index %d bssid %pM type %d mac %pM aid %d\n",
-		    sta->action, sta->sta_index, sta->bssid_index,
-		    sta->bssid, sta->type, sta->mac, sta->aid);
+		    sta_params->action, sta_params->sta_index, sta_params->bssid_index,
+		    sta_params->bssid, sta_params->type, sta_params->mac, sta_params->aid);
 
 	return wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
 }
 
-int wcn36xx_smd_config_sta(struct wcn36xx *wcn, struct ieee80211_vif *vif,
-			   struct ieee80211_sta *sta)
+static int wcn36xx_smd_config_sta_v0(struct wcn36xx *wcn,
+				     struct ieee80211_vif *vif,
+				     struct ieee80211_sta *sta)
 {
 	struct wcn36xx_hal_config_sta_req_msg msg;
 	struct wcn36xx_hal_config_sta_params *sta_params;
-	int ret;
 
-	mutex_lock(&wcn->hal_mutex);
 	INIT_HAL_MSG(msg, WCN36XX_HAL_CONFIG_STA_REQ);
 
 	sta_params = &msg.sta_params;
 
 	wcn36xx_smd_set_sta_params(wcn, vif, sta, sta_params);
 
-	if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
-		ret = wcn36xx_smd_config_sta_v1(wcn, &msg);
-	} else {
-		PREPARE_HAL_BUF(wcn->hal_buf, msg);
+	PREPARE_HAL_BUF(wcn->hal_buf, msg);
 
-		wcn36xx_dbg(WCN36XX_DBG_HAL,
-			    "hal config sta action %d sta_index %d bssid_index %d bssid %pM type %d mac %pM aid %d\n",
-			    sta_params->action, sta_params->sta_index,
-			    sta_params->bssid_index, sta_params->bssid,
-			    sta_params->type, sta_params->mac, sta_params->aid);
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal config sta action %d sta_index %d bssid_index %d bssid %pM type %d mac %pM aid %d\n",
+		    sta_params->action, sta_params->sta_index,
+		    sta_params->bssid_index, sta_params->bssid,
+		    sta_params->type, sta_params->mac, sta_params->aid);
+
+	return wcn36xx_smd_send_and_wait(wcn, msg.header.len);
+}
+
+int wcn36xx_smd_config_sta(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta)
+{
+	int ret;
+
+	mutex_lock(&wcn->hal_mutex);
+
+	if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24))
+		ret = wcn36xx_smd_config_sta_v1(wcn, vif, sta);
+	else
+		ret = wcn36xx_smd_config_sta_v0(wcn, vif, sta);
 
-		ret = wcn36xx_smd_send_and_wait(wcn, msg.header.len);
-	}
 	if (ret) {
 		wcn36xx_err("Sending hal_config_sta failed\n");
 		goto out;
-- 
2.27.0

[PATCH v2 2/7] wcn36xx: Move wcn36xx_smd_set_sta_params() inside wcn36xx_smd_config_bss()

[Bryan O'Donoghue]

In order to facilitate functional decomposition of
wcn36xx_smd_config_bss() we need to move wcn36xx_smd_set_sta_params() later
in function.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index e8c2f4a152b4..654ef074b1eb 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -1618,7 +1618,6 @@ int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
 		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_NONE;
 
 	bss->reserved = 0;
-	wcn36xx_smd_set_sta_params(wcn, vif, sta, sta_params);
 
 	/* wcn->ssid is only valid in AP and IBSS mode */
 	bss->ssid.length = vif_priv->ssid.length;
@@ -1644,6 +1643,8 @@ int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
 
 	vif_priv->bss_type = bss->bss_type;
 
+	wcn36xx_smd_set_sta_params(wcn, vif, sta, sta_params);
+
 	wcn36xx_dbg(WCN36XX_DBG_HAL,
 		    "hal config bss bssid %pM self_mac_addr %pM bss_type %d oper_mode %d nw_type %d\n",
 		    bss->bssid, bss->self_mac_addr, bss->bss_type,
-- 
2.27.0

[PATCH v2 3/7] wcn36xx: Move BSS parameter setup to wcn36xx_smd_set_bss_params()

[Bryan O'Donoghue]

This commit moves BSS parameter setup to a separate function
wcn36xx_smd_set_bss_params(). This will allow for further functional
decomposition and fewer kzalloc() operations in subsequent patches.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 172 +++++++++++++------------
 1 file changed, 92 insertions(+), 80 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index 654ef074b1eb..4d15abed5493 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -1392,6 +1392,97 @@ int wcn36xx_smd_config_sta(struct wcn36xx *wcn, struct ieee80211_vif *vif,
 	return ret;
 }
 
+static void wcn36xx_smd_set_bss_params(struct wcn36xx *wcn,
+				       struct ieee80211_vif *vif,
+				       struct ieee80211_sta *sta,
+				       const u8 *bssid,
+				       bool update,
+				       struct wcn36xx_hal_config_bss_params *bss)
+{
+	struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
+	struct wcn36xx_hal_config_sta_params *sta_params;
+
+	sta_params = &bss->sta;
+
+	WARN_ON(is_zero_ether_addr(bssid));
+
+	memcpy(&bss->bssid, bssid, ETH_ALEN);
+
+	memcpy(bss->self_mac_addr, vif->addr, ETH_ALEN);
+
+	if (vif->type == NL80211_IFTYPE_STATION) {
+		bss->bss_type = WCN36XX_HAL_INFRASTRUCTURE_MODE;
+
+		/* STA */
+		bss->oper_mode = 1;
+		bss->wcn36xx_hal_persona = WCN36XX_HAL_STA_MODE;
+	} else if (vif->type == NL80211_IFTYPE_AP ||
+		   vif->type == NL80211_IFTYPE_MESH_POINT) {
+		bss->bss_type = WCN36XX_HAL_INFRA_AP_MODE;
+
+		/* AP */
+		bss->oper_mode = 0;
+		bss->wcn36xx_hal_persona = WCN36XX_HAL_STA_SAP_MODE;
+	} else if (vif->type == NL80211_IFTYPE_ADHOC) {
+		bss->bss_type = WCN36XX_HAL_IBSS_MODE;
+
+		/* STA */
+		bss->oper_mode = 1;
+	} else {
+		wcn36xx_warn("Unknown type for bss config: %d\n", vif->type);
+	}
+
+	if (vif->type == NL80211_IFTYPE_STATION)
+		wcn36xx_smd_set_bss_nw_type(wcn, sta, bss);
+	else
+		bss->nw_type = WCN36XX_HAL_11N_NW_TYPE;
+
+	bss->short_slot_time_supported = vif->bss_conf.use_short_slot;
+	bss->lla_coexist = 0;
+	bss->llb_coexist = 0;
+	bss->llg_coexist = 0;
+	bss->rifs_mode = 0;
+	bss->beacon_interval = vif->bss_conf.beacon_int;
+	bss->dtim_period = vif_priv->dtim_period;
+
+	wcn36xx_smd_set_bss_ht_params(vif, sta, bss);
+
+	bss->oper_channel = WCN36XX_HW_CHANNEL(wcn);
+
+	if (conf_is_ht40_minus(&wcn->hw->conf))
+		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+	else if (conf_is_ht40_plus(&wcn->hw->conf))
+		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+	else
+		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_NONE;
+
+	bss->reserved = 0;
+
+	/* wcn->ssid is only valid in AP and IBSS mode */
+	bss->ssid.length = vif_priv->ssid.length;
+	memcpy(bss->ssid.ssid, vif_priv->ssid.ssid, vif_priv->ssid.length);
+
+	bss->obss_prot_enabled = 0;
+	bss->rmf = 0;
+	bss->max_probe_resp_retry_limit = 0;
+	bss->hidden_ssid = vif->bss_conf.hidden_ssid;
+	bss->proxy_probe_resp = 0;
+	bss->edca_params_valid = 0;
+
+	/* FIXME: set acbe, acbk, acvi and acvo */
+
+	bss->ext_set_sta_key_param_valid = 0;
+
+	/* FIXME: set ext_set_sta_key_param */
+
+	bss->spectrum_mgt_enable = 0;
+	bss->tx_mgmt_power = 0;
+	bss->max_tx_power = WCN36XX_MAX_POWER(wcn);
+	bss->action = update;
+
+	vif_priv->bss_type = bss->bss_type;
+}
+
 static int wcn36xx_smd_config_bss_v1(struct wcn36xx *wcn,
 			const struct wcn36xx_hal_config_bss_req_msg *orig)
 {
@@ -1499,7 +1590,6 @@ static int wcn36xx_smd_config_bss_v1(struct wcn36xx *wcn,
 	return ret;
 }
 
-
 static int wcn36xx_smd_config_bss_rsp(struct wcn36xx *wcn,
 				      struct ieee80211_vif *vif,
 				      struct ieee80211_sta *sta,
@@ -1551,7 +1641,6 @@ int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
 	struct wcn36xx_hal_config_bss_req_msg *msg;
 	struct wcn36xx_hal_config_bss_params *bss;
 	struct wcn36xx_hal_config_sta_params *sta_params;
-	struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
 	int ret;
 
 	mutex_lock(&wcn->hal_mutex);
@@ -1565,84 +1654,7 @@ int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
 	bss = &msg->bss_params;
 	sta_params = &bss->sta;
 
-	WARN_ON(is_zero_ether_addr(bssid));
-
-	memcpy(&bss->bssid, bssid, ETH_ALEN);
-
-	memcpy(bss->self_mac_addr, vif->addr, ETH_ALEN);
-
-	if (vif->type == NL80211_IFTYPE_STATION) {
-		bss->bss_type = WCN36XX_HAL_INFRASTRUCTURE_MODE;
-
-		/* STA */
-		bss->oper_mode = 1;
-		bss->wcn36xx_hal_persona = WCN36XX_HAL_STA_MODE;
-	} else if (vif->type == NL80211_IFTYPE_AP ||
-		   vif->type == NL80211_IFTYPE_MESH_POINT) {
-		bss->bss_type = WCN36XX_HAL_INFRA_AP_MODE;
-
-		/* AP */
-		bss->oper_mode = 0;
-		bss->wcn36xx_hal_persona = WCN36XX_HAL_STA_SAP_MODE;
-	} else if (vif->type == NL80211_IFTYPE_ADHOC) {
-		bss->bss_type = WCN36XX_HAL_IBSS_MODE;
-
-		/* STA */
-		bss->oper_mode = 1;
-	} else {
-		wcn36xx_warn("Unknown type for bss config: %d\n", vif->type);
-	}
-
-	if (vif->type == NL80211_IFTYPE_STATION)
-		wcn36xx_smd_set_bss_nw_type(wcn, sta, bss);
-	else
-		bss->nw_type = WCN36XX_HAL_11N_NW_TYPE;
-
-	bss->short_slot_time_supported = vif->bss_conf.use_short_slot;
-	bss->lla_coexist = 0;
-	bss->llb_coexist = 0;
-	bss->llg_coexist = 0;
-	bss->rifs_mode = 0;
-	bss->beacon_interval = vif->bss_conf.beacon_int;
-	bss->dtim_period = vif_priv->dtim_period;
-
-	wcn36xx_smd_set_bss_ht_params(vif, sta, bss);
-
-	bss->oper_channel = WCN36XX_HW_CHANNEL(wcn);
-
-	if (conf_is_ht40_minus(&wcn->hw->conf))
-		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
-	else if (conf_is_ht40_plus(&wcn->hw->conf))
-		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
-	else
-		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_NONE;
-
-	bss->reserved = 0;
-
-	/* wcn->ssid is only valid in AP and IBSS mode */
-	bss->ssid.length = vif_priv->ssid.length;
-	memcpy(bss->ssid.ssid, vif_priv->ssid.ssid, vif_priv->ssid.length);
-
-	bss->obss_prot_enabled = 0;
-	bss->rmf = 0;
-	bss->max_probe_resp_retry_limit = 0;
-	bss->hidden_ssid = vif->bss_conf.hidden_ssid;
-	bss->proxy_probe_resp = 0;
-	bss->edca_params_valid = 0;
-
-	/* FIXME: set acbe, acbk, acvi and acvo */
-
-	bss->ext_set_sta_key_param_valid = 0;
-
-	/* FIXME: set ext_set_sta_key_param */
-
-	bss->spectrum_mgt_enable = 0;
-	bss->tx_mgmt_power = 0;
-	bss->max_tx_power = WCN36XX_MAX_POWER(wcn);
-	bss->action = update;
-
-	vif_priv->bss_type = bss->bss_type;
-
+	wcn36xx_smd_set_bss_params(wcn, vif, sta, bssid, update, bss);
 	wcn36xx_smd_set_sta_params(wcn, vif, sta, sta_params);
 
 	wcn36xx_dbg(WCN36XX_DBG_HAL,
-- 
2.27.0

[PATCH v2 4/7] wcn36xx: Add wcn36xx_smd_config_bss_v0

[Bryan O'Donoghue]

This commit adds wcn36xx_smd_config_bss_v0() as a step along the road of
functionally decomposing wcn36xx_smd_config_bss().

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 41 ++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index 4d15abed5493..87fee9c1b981 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -1590,6 +1590,47 @@ static int wcn36xx_smd_config_bss_v1(struct wcn36xx *wcn,
 	return ret;
 }
 
+int wcn36xx_smd_config_bss_v0(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			      struct ieee80211_sta *sta, const u8 *bssid,
+			      bool update)
+{
+	struct wcn36xx_hal_config_bss_req_msg *msg;
+	struct wcn36xx_hal_config_bss_params *bss;
+	struct wcn36xx_hal_config_sta_params *sta_params;
+	int ret;
+
+	msg = kzalloc(sizeof(*msg), GFP_KERNEL);
+	if (!msg)
+		return -ENOMEM;
+
+	INIT_HAL_MSG((*msg), WCN36XX_HAL_CONFIG_BSS_REQ);
+
+	bss = &msg->bss_params;
+	sta_params = &bss->sta;
+
+	wcn36xx_smd_set_bss_params(wcn, vif, sta, bssid, update, bss);
+	wcn36xx_smd_set_sta_params(wcn, vif, sta, sta_params);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, (*msg));
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal config bss bssid %pM self_mac_addr %pM bss_type %d oper_mode %d nw_type %d\n",
+		    bss->bssid, bss->self_mac_addr, bss->bss_type,
+		    bss->oper_mode, bss->nw_type);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "- sta bssid %pM action %d sta_index %d bssid_index %d aid %d type %d mac %pM\n",
+		    sta_params->bssid, sta_params->action,
+		    sta_params->sta_index, sta_params->bssid_index,
+		    sta_params->aid, sta_params->type,
+		    sta_params->mac);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg->header.len);
+	kfree(msg);
+
+	return ret;
+}
+
 static int wcn36xx_smd_config_bss_rsp(struct wcn36xx *wcn,
 				      struct ieee80211_vif *vif,
 				      struct ieee80211_sta *sta,
-- 
2.27.0

[PATCH v2 5/7] wcn36xx: Update wcn36xx_smd_config_bss_v1() to operate internally

[Bryan O'Donoghue]

This patch updates wcn36xx_smd_config_bss_v1() to update on internally
derived parameters only, specifically making use of STA v1 wrapper routines
previously added.

Once done we no longer need to pass a struct wcn36xx_hal_config_bss_req_msg
which gives us options in later patches to eliminate the kzalloc() in
wcn36xx_smd_config_bss entirely.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 116 +++++++++++++------------
 1 file changed, 60 insertions(+), 56 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index 87fee9c1b981..360348456070 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -1483,11 +1483,13 @@ static void wcn36xx_smd_set_bss_params(struct wcn36xx *wcn,
 	vif_priv->bss_type = bss->bss_type;
 }
 
-static int wcn36xx_smd_config_bss_v1(struct wcn36xx *wcn,
-			const struct wcn36xx_hal_config_bss_req_msg *orig)
+int wcn36xx_smd_config_bss_v1(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			      struct ieee80211_sta *sta_80211, const u8 *bssid,
+			      bool update)
 {
 	struct wcn36xx_hal_config_bss_req_msg_v1 *msg_body;
 	struct wcn36xx_hal_config_bss_params_v1 *bss;
+	struct wcn36xx_hal_config_bss_params bss_v0;
 	struct wcn36xx_hal_config_sta_params_v1 *sta;
 	int ret;
 
@@ -1505,72 +1507,74 @@ static int wcn36xx_smd_config_bss_v1(struct wcn36xx *wcn,
 	bss = &msg_body->bss_params;
 	sta = &bss->sta;
 
+	memset(&bss_v0, 0x00, sizeof(bss_v0));
+	wcn36xx_smd_set_bss_params(wcn, vif, sta_80211, bssid, update, &bss_v0);
+	wcn36xx_smd_set_sta_params_v1(wcn, vif, sta_80211, sta);
+
 	/* convert orig to v1 */
-	memcpy(bss->bssid, &orig->bss_params.bssid, ETH_ALEN);
-	memcpy(bss->self_mac_addr, &orig->bss_params.self_mac_addr, ETH_ALEN);
+	memcpy(bss->bssid, &bss_v0.bssid, ETH_ALEN);
+	memcpy(bss->self_mac_addr, &bss_v0.self_mac_addr, ETH_ALEN);
 
-	bss->bss_type = orig->bss_params.bss_type;
-	bss->oper_mode = orig->bss_params.oper_mode;
-	bss->nw_type = orig->bss_params.nw_type;
+	bss->bss_type = bss_v0.bss_type;
+	bss->oper_mode = bss_v0.oper_mode;
+	bss->nw_type = bss_v0.nw_type;
 
 	bss->short_slot_time_supported =
-		orig->bss_params.short_slot_time_supported;
-	bss->lla_coexist = orig->bss_params.lla_coexist;
-	bss->llb_coexist = orig->bss_params.llb_coexist;
-	bss->llg_coexist = orig->bss_params.llg_coexist;
-	bss->ht20_coexist = orig->bss_params.ht20_coexist;
-	bss->lln_non_gf_coexist = orig->bss_params.lln_non_gf_coexist;
+		bss_v0.short_slot_time_supported;
+	bss->lla_coexist = bss_v0.lla_coexist;
+	bss->llb_coexist = bss_v0.llb_coexist;
+	bss->llg_coexist = bss_v0.llg_coexist;
+	bss->ht20_coexist = bss_v0.ht20_coexist;
+	bss->lln_non_gf_coexist = bss_v0.lln_non_gf_coexist;
 
 	bss->lsig_tx_op_protection_full_support =
-		orig->bss_params.lsig_tx_op_protection_full_support;
-	bss->rifs_mode = orig->bss_params.rifs_mode;
-	bss->beacon_interval = orig->bss_params.beacon_interval;
-	bss->dtim_period = orig->bss_params.dtim_period;
-	bss->tx_channel_width_set = orig->bss_params.tx_channel_width_set;
-	bss->oper_channel = orig->bss_params.oper_channel;
-	bss->ext_channel = orig->bss_params.ext_channel;
-
-	bss->reserved = orig->bss_params.reserved;
-
-	memcpy(&bss->ssid, &orig->bss_params.ssid,
-	       sizeof(orig->bss_params.ssid));
-
-	bss->action = orig->bss_params.action;
-	bss->rateset = orig->bss_params.rateset;
-	bss->ht = orig->bss_params.ht;
-	bss->obss_prot_enabled = orig->bss_params.obss_prot_enabled;
-	bss->rmf = orig->bss_params.rmf;
-	bss->ht_oper_mode = orig->bss_params.ht_oper_mode;
-	bss->dual_cts_protection = orig->bss_params.dual_cts_protection;
+		bss_v0.lsig_tx_op_protection_full_support;
+	bss->rifs_mode = bss_v0.rifs_mode;
+	bss->beacon_interval = bss_v0.beacon_interval;
+	bss->dtim_period = bss_v0.dtim_period;
+	bss->tx_channel_width_set = bss_v0.tx_channel_width_set;
+	bss->oper_channel = bss_v0.oper_channel;
+	bss->ext_channel = bss_v0.ext_channel;
+
+	bss->reserved = bss_v0.reserved;
+
+	memcpy(&bss->ssid, &bss_v0.ssid,
+	       sizeof(bss_v0.ssid));
+
+	bss->action = bss_v0.action;
+	bss->rateset = bss_v0.rateset;
+	bss->ht = bss_v0.ht;
+	bss->obss_prot_enabled = bss_v0.obss_prot_enabled;
+	bss->rmf = bss_v0.rmf;
+	bss->ht_oper_mode = bss_v0.ht_oper_mode;
+	bss->dual_cts_protection = bss_v0.dual_cts_protection;
 
 	bss->max_probe_resp_retry_limit =
-		orig->bss_params.max_probe_resp_retry_limit;
-	bss->hidden_ssid = orig->bss_params.hidden_ssid;
-	bss->proxy_probe_resp =	orig->bss_params.proxy_probe_resp;
-	bss->edca_params_valid = orig->bss_params.edca_params_valid;
-
-	memcpy(&bss->acbe, &orig->bss_params.acbe,
-	       sizeof(orig->bss_params.acbe));
-	memcpy(&bss->acbk, &orig->bss_params.acbk,
-	       sizeof(orig->bss_params.acbk));
-	memcpy(&bss->acvi, &orig->bss_params.acvi,
-	       sizeof(orig->bss_params.acvi));
-	memcpy(&bss->acvo, &orig->bss_params.acvo,
-	       sizeof(orig->bss_params.acvo));
+		bss_v0.max_probe_resp_retry_limit;
+	bss->hidden_ssid = bss_v0.hidden_ssid;
+	bss->proxy_probe_resp =	bss_v0.proxy_probe_resp;
+	bss->edca_params_valid = bss_v0.edca_params_valid;
+
+	memcpy(&bss->acbe, &bss_v0.acbe,
+	       sizeof(bss_v0.acbe));
+	memcpy(&bss->acbk, &bss_v0.acbk,
+	       sizeof(bss_v0.acbk));
+	memcpy(&bss->acvi, &bss_v0.acvi,
+	       sizeof(bss_v0.acvi));
+	memcpy(&bss->acvo, &bss_v0.acvo,
+	       sizeof(bss_v0.acvo));
 
 	bss->ext_set_sta_key_param_valid =
-		orig->bss_params.ext_set_sta_key_param_valid;
+		bss_v0.ext_set_sta_key_param_valid;
 
 	memcpy(&bss->ext_set_sta_key_param,
-	       &orig->bss_params.ext_set_sta_key_param,
-	       sizeof(orig->bss_params.acvo));
-
-	bss->wcn36xx_hal_persona = orig->bss_params.wcn36xx_hal_persona;
-	bss->spectrum_mgt_enable = orig->bss_params.spectrum_mgt_enable;
-	bss->tx_mgmt_power = orig->bss_params.tx_mgmt_power;
-	bss->max_tx_power = orig->bss_params.max_tx_power;
+	       &bss_v0.ext_set_sta_key_param,
+	       sizeof(bss_v0.acvo));
 
-	wcn36xx_smd_convert_sta_to_v1(wcn, &orig->bss_params.sta, sta);
+	bss->wcn36xx_hal_persona = bss_v0.wcn36xx_hal_persona;
+	bss->spectrum_mgt_enable = bss_v0.spectrum_mgt_enable;
+	bss->tx_mgmt_power = bss_v0.tx_mgmt_power;
+	bss->max_tx_power = bss_v0.max_tx_power;
 
 	PREPARE_HAL_BUF(wcn->hal_buf, (*msg_body));
 
@@ -1711,7 +1715,7 @@ int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
 		    sta_params->mac);
 
 	if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
-		ret = wcn36xx_smd_config_bss_v1(wcn, msg);
+		ret = wcn36xx_smd_config_bss_v1(wcn, vif, sta, bssid, update);
 	} else {
 		PREPARE_HAL_BUF(wcn->hal_buf, (*msg));
 
-- 
2.27.0

[PATCH v2 6/7] wcn36xx: Convert to using wcn36xx_smd_config_bss_v0()

[Bryan O'Donoghue]

A previous patch added wcn36xx_smd_config_bss_v0() this patch converts the
version 0 data-path in wcn36xx_smd_config_bss() to use
wcn36xx_smd_config_bss_v0().

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index 360348456070..9acf1af14c54 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -1717,9 +1717,7 @@ int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
 	if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
 		ret = wcn36xx_smd_config_bss_v1(wcn, vif, sta, bssid, update);
 	} else {
-		PREPARE_HAL_BUF(wcn->hal_buf, (*msg));
-
-		ret = wcn36xx_smd_send_and_wait(wcn, msg->header.len);
+		ret = wcn36xx_smd_config_bss_v0(wcn, vif, sta, bssid, update);
 	}
 	if (ret) {
 		wcn36xx_err("Sending hal_config_bss failed\n");
-- 
2.27.0

[PATCH v2 7/7] wcn36xx: Remove dead code in wcn36xx_smd_config_bss()

[Bryan O'Donoghue]

wcn36xx_smd_config_bss_v0() and wcn36xx_smd_config_bss_v1() have been
designed to operate in standalone fashion. As a result we can drop the
dead code now present in wcn36xx_smd_config_bss() and happily remove one
kzalloc from the BSS config path as we do so.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 39 ++++----------------------
 1 file changed, 5 insertions(+), 34 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index 9acf1af14c54..2c58f7050836 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -1683,42 +1683,15 @@ int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
 			   struct ieee80211_sta *sta, const u8 *bssid,
 			   bool update)
 {
-	struct wcn36xx_hal_config_bss_req_msg *msg;
-	struct wcn36xx_hal_config_bss_params *bss;
-	struct wcn36xx_hal_config_sta_params *sta_params;
 	int ret;
 
 	mutex_lock(&wcn->hal_mutex);
-	msg = kzalloc(sizeof(*msg), GFP_KERNEL);
-	if (!msg) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	INIT_HAL_MSG((*msg), WCN36XX_HAL_CONFIG_BSS_REQ);
-
-	bss = &msg->bss_params;
-	sta_params = &bss->sta;
-
-	wcn36xx_smd_set_bss_params(wcn, vif, sta, bssid, update, bss);
-	wcn36xx_smd_set_sta_params(wcn, vif, sta, sta_params);
-
-	wcn36xx_dbg(WCN36XX_DBG_HAL,
-		    "hal config bss bssid %pM self_mac_addr %pM bss_type %d oper_mode %d nw_type %d\n",
-		    bss->bssid, bss->self_mac_addr, bss->bss_type,
-		    bss->oper_mode, bss->nw_type);
 
-	wcn36xx_dbg(WCN36XX_DBG_HAL,
-		    "- sta bssid %pM action %d sta_index %d bssid_index %d aid %d type %d mac %pM\n",
-		    sta_params->bssid, sta_params->action,
-		    sta_params->sta_index, sta_params->bssid_index,
-		    sta_params->aid, sta_params->type,
-		    sta_params->mac);
-
-	if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
+	if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24))
 		ret = wcn36xx_smd_config_bss_v1(wcn, vif, sta, bssid, update);
-	} else {
+	else
 		ret = wcn36xx_smd_config_bss_v0(wcn, vif, sta, bssid, update);
-	}
+
 	if (ret) {
 		wcn36xx_err("Sending hal_config_bss failed\n");
 		goto out;
@@ -1728,12 +1701,10 @@ int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
 					 sta,
 					 wcn->hal_buf,
 					 wcn->hal_rsp_len);
-	if (ret) {
+	if (ret)
 		wcn36xx_err("hal_config_bss response failed err=%d\n", ret);
-		goto out;
-	}
+
 out:
-	kfree(msg);
 	mutex_unlock(&wcn->hal_mutex);
 	return ret;
 }
-- 
2.27.0

Re: [PATCH v2 0/7] wcn36xx: Tidy up BSS/STA config

[Loic Poulain]

On Sat, 29 Aug 2020 at 05:38, Bryan O'Donoghue
<bryan.odonoghue@linaro.org> wrote:
>
> This series is three of a set of five to add support for wcn3680 at
> 802.11ac data-rates.
>
> Both the BSS and STA config paths have redundant/duplicate code and before
> adding more code to either it makes sense to reduce/reuse and functionally
> decompose as much as possible.
>
> While not strictly necessary to get the wcn3680/80211.ac functioning in
> this driver, it seems like a missed opportunity to leave the code as is.
>
> Lets reduce down before adding more.

It looks good to me.
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>

Regards,
Loic


On Sat, 29 Aug 2020 at 05:38, Bryan O'Donoghue
<bryan.odonoghue@linaro.org> wrote:
>
> This series is three of a set of five to add support for wcn3680 at
> 802.11ac data-rates.
>
> Both the BSS and STA config paths have redundant/duplicate code and before
> adding more code to either it makes sense to reduce/reuse and functionally
> decompose as much as possible.
>
> While not strictly necessary to get the wcn3680/80211.ac functioning in
> this driver, it seems like a missed opportunity to leave the code as is.
>
> Lets reduce down before adding more.
>
> V2:
> - Adds a memset to wcn36xx_smd_config_bss_v1()
>   Since we are doing one less kzalloc() we need to make sure we clear
>   out the bss config.
>
> V1:
> https://lore.kernel.org/linux-wireless/87eensldhi.fsf@codeaurora.org/T/#t
>
> Bryan O'Donoghue (7):
>   wcn36xx: Functionally decompose wcn36xx_smd_config_sta()
>   wcn36xx: Move wcn36xx_smd_set_sta_params() inside
>     wcn36xx_smd_config_bss()
>   wcn36xx: Move BSS parameter setup to wcn36xx_smd_set_bss_params()
>   wcn36xx: Add wcn36xx_smd_config_bss_v0
>   wcn36xx: Update wcn36xx_smd_config_bss_v1() to operate internally
>   wcn36xx: Convert to using wcn36xx_smd_config_bss_v0()
>   wcn36xx: Remove dead code in wcn36xx_smd_config_bss()
>
>  drivers/net/wireless/ath/wcn36xx/smd.c | 416 ++++++++++++++-----------
>  1 file changed, 227 insertions(+), 189 deletions(-)
>
> --
> 2.27.0
>