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Re: [PATCH v6 12/13] wifi: ath11k: add handler for WMI_VDEV_SET_TPC_POWER_CMDID

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On 9/20/2023 1:23 AM, Wen Gong wrote:
Add the handler for WMI_VDEV_SET_TPC_POWER_CMDID, it is for 6 GHz band.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Wen Gong <quic_wgong@xxxxxxxxxxx>
---
  drivers/net/wireless/ath/ath11k/wmi.c | 63 +++++++++++++++++++++++++++
  drivers/net/wireless/ath/ath11k/wmi.h | 61 ++++++++++++++++++++++++++
  2 files changed, 124 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index d93ed92335c7..43c47967eec1 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -2379,6 +2379,69 @@ int ath11k_wmi_send_scan_start_cmd(struct ath11k *ar,
  	return ret;
  }
+int ath11k_wmi_send_vdev_set_tpc_power(struct ath11k *ar,
+				       u32 vdev_id,
+				       struct ath11k_reg_tpc_power_info *param)
+{
+	struct ath11k_pdev_wmi *wmi = ar->wmi;
+	struct wmi_vdev_set_tpc_power_cmd *cmd;
+	struct wmi_vdev_ch_power_info *ch;
+	struct sk_buff *skb;
+	struct wmi_tlv *tlv;
+	u8 *ptr;
+	int i, ret, len;
+
+	len = sizeof(*cmd) + TLV_HDR_SIZE;
+	len += (sizeof(struct wmi_vdev_ch_power_info) * param->num_pwr_levels);

sizeof(*ch) is preferred

and since you need this sum both here and when you fill the TLV, consider calculating it once and using the calculated value in both places

+
+	skb = ath11k_wmi_alloc_skb(wmi->wmi_ab, len);
+	if (!skb)
+		return -ENOMEM;
+
+	ptr = skb->data;
+
+	cmd = (struct wmi_vdev_set_tpc_power_cmd *)ptr;
+	cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_VDEV_SET_TPC_POWER_CMD) |
+			  FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE);
+	cmd->vdev_id = vdev_id;
+	cmd->psd_power = param->is_psd_power;
+	cmd->eirp_power = param->eirp_power;
+	cmd->power_type_6ghz = param->ap_power_type;
+	ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
+		   "wmi tpc vdev id %d is psd power %d eirp power %d 6 GHz power type %d\n",
+		   vdev_id, param->is_psd_power, param->eirp_power, param->ap_power_type);
+
+	ptr += sizeof(*cmd);
+	tlv = (struct wmi_tlv *)ptr;
+	tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_STRUCT) |
+		      FIELD_PREP(WMI_TLV_LEN, param->num_pwr_levels * sizeof(*ch));

as noted above you can use previously calculated length here

+
+	ptr += TLV_HDR_SIZE;
+	ch = (struct wmi_vdev_ch_power_info *)ptr;
+
+	for (i = 0; i < param->num_pwr_levels; i++, ch++) {
+		ch->tlv_header = FIELD_PREP(WMI_TLV_TAG,
+					    WMI_TAG_VDEV_CH_POWER_INFO) |
+				FIELD_PREP(WMI_TLV_LEN,
+					   sizeof(*ch) - TLV_HDR_SIZE);
+
+		ch->chan_cfreq = param->chan_power_info[i].chan_cfreq;
+		ch->tx_power = param->chan_power_info[i].tx_power;
+
+		ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
+			   "wmi tpc chan freq %d TX power %d\n",
+			   ch->chan_cfreq, ch->tx_power);
+	}
+
+	ret = ath11k_wmi_cmd_send(wmi, skb,
+				  WMI_VDEV_SET_TPC_POWER_CMDID);
+	if (ret) {
+		ath11k_warn(ar->ab, "failed to send WMI_VDEV_SET_TPC_POWER_CMDID\n");
+		dev_kfree_skb(skb);
+	}
+	return ret;
+}
+
  int ath11k_wmi_send_scan_stop_cmd(struct ath11k *ar,
  				  struct scan_cancel_param *param)
  {
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index ed1a6db23709..dbe973698a89 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -15,6 +15,7 @@ struct ath11k;
  struct ath11k_fw_stats;
  struct ath11k_fw_dbglog;
  struct ath11k_vif;
+struct ath11k_reg_tpc_power_info;
#define PSOC_HOST_MAX_NUM_SS (8) @@ -327,6 +328,36 @@ enum wmi_tlv_cmd_id {
  	WMI_VDEV_SET_CUSTOM_AGGR_SIZE_CMDID,
  	WMI_VDEV_ENCRYPT_DECRYPT_DATA_REQ_CMDID,
  	WMI_VDEV_ADD_MAC_ADDR_TO_RX_FILTER_CMDID,
+	/** WMI commands related to dbg arp stats */
+	WMI_VDEV_SET_ARP_STAT_CMDID,
+	WMI_VDEV_GET_ARP_STAT_CMDID,
+	/** get tx power for the current vdev */
+	WMI_VDEV_GET_TX_POWER_CMDID,
+	/* limit STA offchannel activity */
+	WMI_VDEV_LIMIT_OFFCHAN_CMDID,
+	/** To set custom software retries per-AC for vdev */
+	WMI_VDEV_SET_CUSTOM_SW_RETRY_TH_CMDID,
+	/** To set chainmask configuration for vdev */
+	WMI_VDEV_CHAINMASK_CONFIG_CMDID,
+	WMI_VDEV_GET_BCN_RECEPTION_STATS_CMDID,
+	/* request LTE-Coex info */
+	WMI_VDEV_GET_MWS_COEX_INFO_CMDID,
+	/** delete all peer (excluding bss peer) */
+	WMI_VDEV_DELETE_ALL_PEER_CMDID,
+	/* To set bss max idle time related parameters */
+	WMI_VDEV_BSS_MAX_IDLE_TIME_CMDID,
+	/** Indicates firmware to trigger Audio sync */
+	WMI_VDEV_AUDIO_SYNC_TRIGGER_CMDID,
+	/** Gives Qtimer value to firmware */
+	WMI_VDEV_AUDIO_SYNC_QTIMER_CMDID,
+	/** Preferred channel list for each vdev */
+	WMI_VDEV_SET_PCL_CMDID,
+	/** VDEV_GET_BIG_DATA_CMD IS DEPRECATED - DO NOT USE */
+	WMI_VDEV_GET_BIG_DATA_CMDID,
+	/** Get per vdev BIG DATA stats phase 2 */
+	WMI_VDEV_GET_BIG_DATA_P2_CMDID,
+	/** set TPC PSD/non-PSD power */
+	WMI_VDEV_SET_TPC_POWER_CMDID,
  	WMI_PEER_CREATE_CMDID = WMI_TLV_CMD(WMI_GRP_PEER),
  	WMI_PEER_DELETE_CMDID,
  	WMI_PEER_FLUSH_TIDS_CMDID,
@@ -1878,6 +1909,8 @@ enum wmi_tlv_tag {
  	WMI_TAG_PDEV_NON_SRG_OBSS_BSSID_ENABLE_BITMAP_CMD,
  	WMI_TAG_REGULATORY_RULE_EXT_STRUCT = 0x3A9,
  	WMI_TAG_REG_CHAN_LIST_CC_EXT_EVENT,
+	WMI_TAG_VDEV_SET_TPC_POWER_CMD = 0x3B5,
+	WMI_TAG_VDEV_CH_POWER_INFO,
  	WMI_TAG_PDEV_SET_BIOS_SAR_TABLE_CMD = 0x3D8,
  	WMI_TAG_PDEV_SET_BIOS_GEO_TABLE_CMD,
  	WMI_TAG_MAX
@@ -3168,6 +3201,31 @@ struct wlan_ssid {
  	u8 ssid[WLAN_SSID_MAX_LEN];
  };
+struct wmi_vdev_ch_power_info {
+	u32 tlv_header;
+	u32 chan_cfreq; /* Channel center frequency (MHz) */
+	/* Unit: dBm, either PSD/EIRP power for this frequency or
+	 * incremental for non-PSD BW
+	 */
+	u32 tx_power;
+} __packed;
+
+struct wmi_vdev_set_tpc_power_cmd {
+	u32 tlv_header;
+	u32 vdev_id;
+	u32 psd_power; /* Value: 0 or 1, is PSD power or not */
+	u32 eirp_power; /* Maximum EIRP power (dBm units), valid only if power is PSD */
+	u32 power_type_6ghz; /* Type: WMI_6GHZ_REG_TYPE, used for halphy CTL lookup */
+	/* This fixed_param TLV is followed by the below TLVs:
+	 * num_pwr_levels of wmi_vdev_ch_power_info
+	 * For PSD power, it is the PSD/EIRP power of the frequency (20 MHz chunks).
+	 * For non-PSD power, the power values are for 20, 40, and till
+	 * BSS BW power levels.
+	 * The num_pwr_levels will be checked by sw how many elements present
+	 * in the variable-length array.
+	 */
+} __packed;
+
  #define WMI_IE_BITMAP_SIZE             8
/* prefix used by scan requestor ids on the host */
@@ -6512,4 +6570,7 @@ void ath11k_reg_reset_info(struct cur_regulatory_info *reg_info);
  int ath11k_reg_handle_chan_list(struct ath11k_base *ab,
  				struct cur_regulatory_info *reg_info,
  				enum ieee80211_ap_reg_power power_type);
+int ath11k_wmi_send_vdev_set_tpc_power(struct ath11k *ar,
+				       u32 vdev_id,
+				       struct ath11k_reg_tpc_power_info *param);
  #endif




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