ath10k: wmi: add management tx by reference support over wmi

HL1.0 firmware branch, used in wcn3990, transmits management
frames by reference over WMI.

Add support for management tx by reference over WMI.
Signed-off-by: Rakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: Govind Singh <govinds@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath10k/core.c

@@ -390,6 +390,7 @@ static const char *const ath10k_core_fw_feature_str[] = {
 	[ATH10K_FW_FEATURE_SKIP_NULL_FUNC_WAR] = "skip-null-func-war",
 	[ATH10K_FW_FEATURE_ALLOWS_MESH_BCAST] = "allows-mesh-bcast",
 	[ATH10K_FW_FEATURE_NO_PS] = "no-ps",
+	[ATH10K_FW_FEATURE_MGMT_TX_BY_REF] = "mgmt-tx-by-reference",
 };
 
 static unsigned int ath10k_core_get_fw_feature_str(char *buf,

drivers/net/wireless/ath/ath10k/core.h

@@ -613,6 +613,9 @@ enum ath10k_fw_features {
 	/* Firmware does not support power save in station mode. */
 	ATH10K_FW_FEATURE_NO_PS = 17,
 
+	/* Firmware allows management tx by reference instead of by value. */
+	ATH10K_FW_FEATURE_MGMT_TX_BY_REF = 18,
+
 	/* keep last */
 	ATH10K_FW_FEATURE_COUNT,
 };

drivers/net/wireless/ath/ath10k/wmi-ops.h

@@ -377,6 +377,7 @@ ath10k_wmi_mgmt_tx(struct ath10k *ar, struct sk_buff *msdu)
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(msdu);
 	struct sk_buff *skb;
 	int ret;
+	u32 mgmt_tx_cmdid;
 
 	if (!ar->wmi.ops->gen_mgmt_tx)
 		return -EOPNOTSUPP;
@@ -385,7 +386,13 @@ ath10k_wmi_mgmt_tx(struct ath10k *ar, struct sk_buff *msdu)
 	if (IS_ERR(skb))
 		return PTR_ERR(skb);
 
-	ret = ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->mgmt_tx_cmdid);
+	if (test_bit(ATH10K_FW_FEATURE_MGMT_TX_BY_REF,
+		     ar->running_fw->fw_file.fw_features))
+		mgmt_tx_cmdid = ar->wmi.cmd->mgmt_tx_send_cmdid;
+	else
+		mgmt_tx_cmdid = ar->wmi.cmd->mgmt_tx_cmdid;
+
+	ret = ath10k_wmi_cmd_send(ar, skb, mgmt_tx_cmdid);
 	if (ret)
 		return ret;
 

drivers/net/wireless/ath/ath10k/wmi-tlv.c

@@ -2482,6 +2482,82 @@ ath10k_wmi_tlv_op_gen_request_stats(struct ath10k *ar, u32 stats_mask)
 	return skb;
 }
 
+static struct sk_buff *
+ath10k_wmi_tlv_op_gen_mgmt_tx(struct ath10k *ar, struct sk_buff *msdu)
+{
+	struct ath10k_skb_cb *cb = ATH10K_SKB_CB(msdu);
+	struct wmi_tlv_mgmt_tx_cmd *cmd;
+	struct wmi_tlv *tlv;
+	struct ieee80211_hdr *hdr;
+	struct sk_buff *skb;
+	void *ptr;
+	int len;
+	u32 buf_len = msdu->len;
+	u16 fc;
+	struct ath10k_vif *arvif;
+	dma_addr_t mgmt_frame_dma;
+	u32 vdev_id;
+
+	if (!cb->vif)
+		return ERR_PTR(-EINVAL);
+
+	hdr = (struct ieee80211_hdr *)msdu->data;
+	fc = le16_to_cpu(hdr->frame_control);
+	arvif = (void *)cb->vif->drv_priv;
+	vdev_id = arvif->vdev_id;
+
+	if (WARN_ON_ONCE(!ieee80211_is_mgmt(hdr->frame_control)))
+		return ERR_PTR(-EINVAL);
+
+	len = sizeof(*cmd) + 2 * sizeof(*tlv);
+
+	if ((ieee80211_is_action(hdr->frame_control) ||
+	     ieee80211_is_deauth(hdr->frame_control) ||
+	     ieee80211_is_disassoc(hdr->frame_control)) &&
+	     ieee80211_has_protected(hdr->frame_control)) {
+		len += IEEE80211_CCMP_MIC_LEN;
+		buf_len += IEEE80211_CCMP_MIC_LEN;
+	}
+
+	buf_len = min_t(u32, buf_len, WMI_TLV_MGMT_TX_FRAME_MAX_LEN);
+	buf_len = round_up(buf_len, 4);
+
+	len += buf_len;
+	len = round_up(len, 4);
+	skb = ath10k_wmi_alloc_skb(ar, len);
+	if (!skb)
+		return ERR_PTR(-ENOMEM);
+
+	ptr = (void *)skb->data;
+	tlv = ptr;
+	tlv->tag = __cpu_to_le16(WMI_TLV_TAG_STRUCT_MGMT_TX_CMD);
+	tlv->len = __cpu_to_le16(sizeof(*cmd));
+	cmd = (void *)tlv->value;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+	cmd->desc_id = 0;
+	cmd->chanfreq = 0;
+	cmd->buf_len = __cpu_to_le32(buf_len);
+	cmd->frame_len = __cpu_to_le32(msdu->len);
+	mgmt_frame_dma = dma_map_single(arvif->ar->dev, msdu->data,
+					msdu->len, DMA_TO_DEVICE);
+	if (!mgmt_frame_dma)
+		return ERR_PTR(-ENOMEM);
+
+	cmd->paddr = __cpu_to_le64(mgmt_frame_dma);
+
+	ptr += sizeof(*tlv);
+	ptr += sizeof(*cmd);
+
+	tlv = ptr;
+	tlv->tag = __cpu_to_le16(WMI_TLV_TAG_ARRAY_BYTE);
+	tlv->len = __cpu_to_le16(buf_len);
+
+	ptr += sizeof(*tlv);
+	memcpy(ptr, msdu->data, buf_len);
+
+	return skb;
+}
+
 static struct sk_buff *
 ath10k_wmi_tlv_op_gen_force_fw_hang(struct ath10k *ar,
 				    enum wmi_force_fw_hang_type type,
@@ -3291,6 +3367,7 @@ static struct wmi_cmd_map wmi_tlv_cmd_map = {
 	.bcn_filter_rx_cmdid = WMI_TLV_BCN_FILTER_RX_CMDID,
 	.prb_req_filter_rx_cmdid = WMI_TLV_PRB_REQ_FILTER_RX_CMDID,
 	.mgmt_tx_cmdid = WMI_TLV_MGMT_TX_CMDID,
+	.mgmt_tx_send_cmdid = WMI_TLV_MGMT_TX_SEND_CMD,
 	.prb_tmpl_cmdid = WMI_TLV_PRB_TMPL_CMDID,
 	.addba_clear_resp_cmdid = WMI_TLV_ADDBA_CLEAR_RESP_CMDID,
 	.addba_send_cmdid = WMI_TLV_ADDBA_SEND_CMDID,
@@ -3625,6 +3702,7 @@ static const struct wmi_ops wmi_tlv_ops = {
 	.gen_request_stats = ath10k_wmi_tlv_op_gen_request_stats,
 	.gen_force_fw_hang = ath10k_wmi_tlv_op_gen_force_fw_hang,
 	/* .gen_mgmt_tx = not implemented; HTT is used */
+	.gen_mgmt_tx =  ath10k_wmi_tlv_op_gen_mgmt_tx,
 	.gen_dbglog_cfg = ath10k_wmi_tlv_op_gen_dbglog_cfg,
 	.gen_pktlog_enable = ath10k_wmi_tlv_op_gen_pktlog_enable,
 	.gen_pktlog_disable = ath10k_wmi_tlv_op_gen_pktlog_disable,

drivers/net/wireless/ath/ath10k/wmi-tlv.h

@@ -22,6 +22,7 @@
 #define WMI_TLV_CMD_UNSUPPORTED 0
 #define WMI_TLV_PDEV_PARAM_UNSUPPORTED 0
 #define WMI_TLV_VDEV_PARAM_UNSUPPORTED 0
+#define WMI_TLV_MGMT_TX_FRAME_MAX_LEN	64
 
 enum wmi_tlv_grp_id {
 	WMI_TLV_GRP_START = 0x3,
@@ -132,6 +133,7 @@ enum wmi_tlv_cmd_id {
 	WMI_TLV_PRB_REQ_FILTER_RX_CMDID,
 	WMI_TLV_MGMT_TX_CMDID,
 	WMI_TLV_PRB_TMPL_CMDID,
+	WMI_TLV_MGMT_TX_SEND_CMD,
 	WMI_TLV_ADDBA_CLEAR_RESP_CMDID = WMI_TLV_CMD(WMI_TLV_GRP_BA_NEG),
 	WMI_TLV_ADDBA_SEND_CMDID,
 	WMI_TLV_ADDBA_STATUS_CMDID,
@@ -890,6 +892,63 @@ enum wmi_tlv_tag {
 	WMI_TLV_TAG_STRUCT_SAP_OFL_DEL_STA_EVENT,
 	WMI_TLV_TAG_STRUCT_APFIND_CMD_PARAM,
 	WMI_TLV_TAG_STRUCT_APFIND_EVENT_HDR,
+	WMI_TLV_TAG_STRUCT_OCB_SET_SCHED_CMD,
+	WMI_TLV_TAG_STRUCT_OCB_SET_SCHED_EVENT,
+	WMI_TLV_TAG_STRUCT_OCB_SET_CONFIG_CMD,
+	WMI_TLV_TAG_STRUCT_OCB_SET_CONFIG_RESP_EVENT,
+	WMI_TLV_TAG_STRUCT_OCB_SET_UTC_TIME_CMD,
+	WMI_TLV_TAG_STRUCT_OCB_START_TIMING_ADVERT_CMD,
+	WMI_TLV_TAG_STRUCT_OCB_STOP_TIMING_ADVERT_CMD,
+	WMI_TLV_TAG_STRUCT_OCB_GET_TSF_TIMER_CMD,
+	WMI_TLV_TAG_STRUCT_OCB_GET_TSF_TIMER_RESP_EVENT,
+	WMI_TLV_TAG_STRUCT_DCC_GET_STATS_CMD,
+	WMI_TLV_TAG_STRUCT_DCC_CHANNEL_STATS_REQUEST,
+	WMI_TLV_TAG_STRUCT_DCC_GET_STATS_RESP_EVENT,
+	WMI_TLV_TAG_STRUCT_DCC_CLEAR_STATS_CMD,
+	WMI_TLV_TAG_STRUCT_DCC_UPDATE_NDL_CMD,
+	WMI_TLV_TAG_STRUCT_DCC_UPDATE_NDL_RESP_EVENT,
+	WMI_TLV_TAG_STRUCT_DCC_STATS_EVENT,
+	WMI_TLV_TAG_STRUCT_OCB_CHANNEL,
+	WMI_TLV_TAG_STRUCT_OCB_SCHEDULE_ELEMENT,
+	WMI_TLV_TAG_STRUCT_DCC_NDL_STATS_PER_CHANNEL,
+	WMI_TLV_TAG_STRUCT_DCC_NDL_CHAN,
+	WMI_TLV_TAG_STRUCT_QOS_PARAMETER,
+	WMI_TLV_TAG_STRUCT_DCC_NDL_ACTIVE_STATE_CONFIG,
+	WMI_TLV_TAG_STRUCT_ROAM_SCAN_EXTENDED_THRESHOLD_PARAM,
+	WMI_TLV_TAG_STRUCT_ROAM_FILTER_FIXED_PARAM,
+	WMI_TLV_TAG_STRUCT_PASSPOINT_CONFIG_CMD,
+	WMI_TLV_TAG_STRUCT_PASSPOINT_EVENT_HDR,
+	WMI_TLV_TAG_STRUCT_EXTSCAN_CONFIGURE_HOTLIST_SSID_MONITOR_CMD,
+	WMI_TLV_TAG_STRUCT_EXTSCAN_HOTLIST_SSID_MATCH_EVENT,
+	WMI_TLV_TAG_STRUCT_VDEV_TSF_TSTAMP_ACTION_CMD,
+	WMI_TLV_TAG_STRUCT_VDEV_TSF_REPORT_EVENT,
+	WMI_TLV_TAG_STRUCT_GET_FW_MEM_DUMP,
+	WMI_TLV_TAG_STRUCT_UPDATE_FW_MEM_DUMP,
+	WMI_TLV_TAG_STRUCT_FW_MEM_DUMP_PARAMS,
+	WMI_TLV_TAG_STRUCT_DEBUG_MESG_FLUSH,
+	WMI_TLV_TAG_STRUCT_DEBUG_MESG_FLUSH_COMPLETE,
+	WMI_TLV_TAG_STRUCT_PEER_SET_RATE_REPORT_CONDITION,
+	WMI_TLV_TAG_STRUCT_ROAM_SUBNET_CHANGE_CONFIG,
+	WMI_TLV_TAG_STRUCT_VDEV_SET_IE_CMD,
+	WMI_TLV_TAG_STRUCT_RSSI_BREACH_MONITOR_CONFIG,
+	WMI_TLV_TAG_STRUCT_RSSI_BREACH_EVENT,
+	WMI_TLV_TAG_STRUCT_EVENT_INITIAL_WAKEUP,
+	WMI_TLV_TAG_STRUCT_SOC_SET_PCL_CMD,
+	WMI_TLV_TAG_STRUCT_SOC_SET_HW_MODE_CMD,
+	WMI_TLV_TAG_STRUCT_SOC_SET_HW_MODE_RESPONSE_EVENT,
+	WMI_TLV_TAG_STRUCT_SOC_HW_MODE_TRANSITION_EVENT,
+	WMI_TLV_TAG_STRUCT_VDEV_TXRX_STREAMS,
+	WMI_TLV_TAG_STRUCT_SOC_SET_HW_MODE_RESPONSE_VDEV_MAC_ENTRY,
+	WMI_TLV_TAG_STRUCT_SOC_SET_DUAL_MAC_CONFIG_CMD,
+	WMI_TLV_TAG_STRUCT_SOC_SET_DUAL_MAC_CONFIG_RESPONSE_EVENT,
+	WMI_TLV_TAG_STRUCT_IOAC_SOCK_PATTERN_T,
+	WMI_TLV_TAG_STRUCT_WOW_ENABLE_ICMPV6_NA_FLT_CMD,
+	WMI_TLV_TAG_STRUCT_DIAG_EVENT_LOG_CONFIG,
+	WMI_TLV_TAG_STRUCT_DIAG_EVENT_LOG_SUPPORTED_EVENT,
+	WMI_TLV_TAG_STRUCT_PACKET_FILTER_CONFIG,
+	WMI_TLV_TAG_STRUCT_PACKET_FILTER_ENABLE,
+	WMI_TLV_TAG_STRUCT_SAP_SET_BLACKLIST_PARAM_CMD,
+	WMI_TLV_TAG_STRUCT_MGMT_TX_CMD,
 
 	WMI_TLV_TAG_MAX
 };
@@ -1689,4 +1748,12 @@ struct wmi_tlv_tx_pause_ev {
 
 void ath10k_wmi_tlv_attach(struct ath10k *ar);
 
+struct wmi_tlv_mgmt_tx_cmd {
+	__le32 vdev_id;
+	__le32 desc_id;
+	__le32 chanfreq;
+	__le64 paddr;
+	__le32 frame_len;
+	__le32 buf_len;
+} __packed;
 #endif

drivers/net/wireless/ath/ath10k/wmi.h

@@ -798,6 +798,7 @@ struct wmi_cmd_map {
 	u32 bcn_filter_rx_cmdid;
 	u32 prb_req_filter_rx_cmdid;
 	u32 mgmt_tx_cmdid;
+	u32 mgmt_tx_send_cmdid;
 	u32 prb_tmpl_cmdid;
 	u32 addba_clear_resp_cmdid;
 	u32 addba_send_cmdid;