openwrt/package/kernel/mac80211/patches/380-0001-ath10k-wmi-modify-svc-bitmap-parsing-for-wcn3990.patch

From 229329ff345f80c95202eaf2d7a0f2910c06144e Mon Sep 17 00:00:00 2001
From: Rakesh Pillai <pillair@qti.qualcomm.com>
Date: Mon, 11 Dec 2017 19:52:52 +0530
Subject: [PATCH] ath10k: wmi: modify svc bitmap parsing for wcn3990

Due to the limitation of wmi tlv parsing logic, if there are
two parameters in a wmi event with same tlv tag, we can get only
the last value, as it overwrites the prev value of the same tlv tag.

The service ready event in wcn3990 contains two parameters of the
same tag UINT32, due to which the svc bitmap is overwritten with the
DBS support parameter.

Refactor the service ready event parsing to allow parsing two tlv
of the same tag UINT32 for wcn3990.

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/mac.c     |  4 +-
 drivers/net/wireless/ath/ath10k/wmi-tlv.c | 61 ++++++++++++++++++++++++-------
 drivers/net/wireless/ath/ath10k/wmi-tlv.h | 46 +++++++++++++++++++++++
 drivers/net/wireless/ath/ath10k/wmi.h     |  1 +
 4 files changed, 97 insertions(+), 15 deletions(-)

--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3574,7 +3574,9 @@ ath10k_mac_tx_h_get_txpath(struct ath10k
 		return ATH10K_MAC_TX_HTT;
 	case ATH10K_HW_TXRX_MGMT:
 		if (test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
-			     ar->running_fw->fw_file.fw_features))
+			     ar->running_fw->fw_file.fw_features) ||
+			     test_bit(WMI_SERVICE_MGMT_TX_WMI,
+				      ar->wmi.svc_map))
 			return ATH10K_MAC_TX_WMI_MGMT;
 		else if (ar->htt.target_version_major >= 3)
 			return ATH10K_MAC_TX_HTT;
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -917,33 +917,69 @@ ath10k_wmi_tlv_parse_mem_reqs(struct ath
 	return -ENOMEM;
 }
 
+struct wmi_tlv_svc_rdy_parse {
+	const struct hal_reg_capabilities *reg;
+	const struct wmi_tlv_svc_rdy_ev *ev;
+	const __le32 *svc_bmap;
+	const struct wlan_host_mem_req *mem_reqs;
+	bool svc_bmap_done;
+	bool dbs_hw_mode_done;
+};
+
+static int ath10k_wmi_tlv_svc_rdy_parse(struct ath10k *ar, u16 tag, u16 len,
+					const void *ptr, void *data)
+{
+	struct wmi_tlv_svc_rdy_parse *svc_rdy = data;
+
+	switch (tag) {
+	case WMI_TLV_TAG_STRUCT_SERVICE_READY_EVENT:
+		svc_rdy->ev = ptr;
+		break;
+	case WMI_TLV_TAG_STRUCT_HAL_REG_CAPABILITIES:
+		svc_rdy->reg = ptr;
+		break;
+	case WMI_TLV_TAG_ARRAY_STRUCT:
+		svc_rdy->mem_reqs = ptr;
+		break;
+	case WMI_TLV_TAG_ARRAY_UINT32:
+		if (!svc_rdy->svc_bmap_done) {
+			svc_rdy->svc_bmap_done = true;
+			svc_rdy->svc_bmap = ptr;
+		} else if (!svc_rdy->dbs_hw_mode_done) {
+			svc_rdy->dbs_hw_mode_done = true;
+		}
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
 static int ath10k_wmi_tlv_op_pull_svc_rdy_ev(struct ath10k *ar,
 					     struct sk_buff *skb,
 					     struct wmi_svc_rdy_ev_arg *arg)
 {
-	const void **tb;
 	const struct hal_reg_capabilities *reg;
 	const struct wmi_tlv_svc_rdy_ev *ev;
 	const __le32 *svc_bmap;
 	const struct wlan_host_mem_req *mem_reqs;
+	struct wmi_tlv_svc_rdy_parse svc_rdy = { };
 	int ret;
 
-	tb = ath10k_wmi_tlv_parse_alloc(ar, skb->data, skb->len, GFP_ATOMIC);
-	if (IS_ERR(tb)) {
-		ret = PTR_ERR(tb);
+	ret = ath10k_wmi_tlv_iter(ar, skb->data, skb->len,
+				  ath10k_wmi_tlv_svc_rdy_parse, &svc_rdy);
+	if (ret) {
 		ath10k_warn(ar, "failed to parse tlv: %d\n", ret);
 		return ret;
 	}
 
-	ev = tb[WMI_TLV_TAG_STRUCT_SERVICE_READY_EVENT];
-	reg = tb[WMI_TLV_TAG_STRUCT_HAL_REG_CAPABILITIES];
-	svc_bmap = tb[WMI_TLV_TAG_ARRAY_UINT32];
-	mem_reqs = tb[WMI_TLV_TAG_ARRAY_STRUCT];
+	ev = svc_rdy.ev;
+	reg = svc_rdy.reg;
+	svc_bmap = svc_rdy.svc_bmap;
+	mem_reqs = svc_rdy.mem_reqs;
 
-	if (!ev || !reg || !svc_bmap || !mem_reqs) {
-		kfree(tb);
+	if (!ev || !reg || !svc_bmap || !mem_reqs)
 		return -EPROTO;
-	}
 
 	/* This is an internal ABI compatibility check for WMI TLV so check it
 	 * here instead of the generic WMI code.
@@ -961,7 +997,6 @@ static int ath10k_wmi_tlv_op_pull_svc_rd
 	    __le32_to_cpu(ev->abi.abi_ver_ns1) != WMI_TLV_ABI_VER_NS1 ||
 	    __le32_to_cpu(ev->abi.abi_ver_ns2) != WMI_TLV_ABI_VER_NS2 ||
 	    __le32_to_cpu(ev->abi.abi_ver_ns3) != WMI_TLV_ABI_VER_NS3) {
-		kfree(tb);
 		return -ENOTSUPP;
 	}
 
@@ -982,12 +1017,10 @@ static int ath10k_wmi_tlv_op_pull_svc_rd
 	ret = ath10k_wmi_tlv_iter(ar, mem_reqs, ath10k_wmi_tlv_len(mem_reqs),
 				  ath10k_wmi_tlv_parse_mem_reqs, arg);
 	if (ret) {
-		kfree(tb);
 		ath10k_warn(ar, "failed to parse mem_reqs tlv: %d\n", ret);
 		return ret;
 	}
 
-	kfree(tb);
 	return 0;
 }
 
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.h
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.h
@@ -965,6 +965,50 @@ enum wmi_tlv_service {
 	WMI_TLV_SERVICE_STA_RX_IPA_OFFLOAD_SUPPORT,
 	WMI_TLV_SERVICE_MDNS_OFFLOAD,
 	WMI_TLV_SERVICE_SAP_AUTH_OFFLOAD,
+	WMI_TLV_SERVICE_DUAL_BAND_SIMULTANEOUS_SUPPORT,
+	WMI_TLV_SERVICE_OCB,
+	WMI_TLV_SERVICE_AP_ARPNS_OFFLOAD,
+	WMI_TLV_SERVICE_PER_BAND_CHAINMASK_SUPPORT,
+	WMI_TLV_SERVICE_PACKET_FILTER_OFFLOAD,
+	WMI_TLV_SERVICE_MGMT_TX_HTT,
+	WMI_TLV_SERVICE_MGMT_TX_WMI,
+	WMI_TLV_SERVICE_EXT_MSG,
+	WMI_TLV_SERVICE_MAWC,
+	WMI_TLV_SERVICE_PEER_ASSOC_CONF,
+	WMI_TLV_SERVICE_EGAP,
+	WMI_TLV_SERVICE_STA_PMF_OFFLOAD,
+	WMI_TLV_SERVICE_UNIFIED_WOW_CAPABILITY,
+	WMI_TLV_SERVICE_ENHANCED_PROXY_STA,
+	WMI_TLV_SERVICE_ATF,
+	WMI_TLV_SERVICE_COEX_GPIO,
+	WMI_TLV_SERVICE_AUX_SPECTRAL_INTF,
+	WMI_TLV_SERVICE_AUX_CHAN_LOAD_INTF,
+	WMI_TLV_SERVICE_BSS_CHANNEL_INFO_64,
+	WMI_TLV_SERVICE_ENTERPRISE_MESH,
+	WMI_TLV_SERVICE_RESTRT_CHNL_SUPPORT,
+	WMI_TLV_SERVICE_BPF_OFFLOAD,
+	WMI_TLV_SERVICE_SYNC_DELETE_CMDS,
+	WMI_TLV_SERVICE_SMART_ANTENNA_SW_SUPPORT,
+	WMI_TLV_SERVICE_SMART_ANTENNA_HW_SUPPORT,
+	WMI_TLV_SERVICE_RATECTRL_LIMIT_MAX_MIN_RATES,
+	WMI_TLV_SERVICE_NAN_DATA,
+	WMI_TLV_SERVICE_NAN_RTT,
+	WMI_TLV_SERVICE_11AX,
+	WMI_TLV_SERVICE_DEPRECATED_REPLACE,
+	WMI_TLV_SERVICE_TDLS_CONN_TRACKER_IN_HOST_MODE,
+	WMI_TLV_SERVICE_ENHANCED_MCAST_FILTER,
+	WMI_TLV_SERVICE_PERIODIC_CHAN_STAT_SUPPORT,
+	WMI_TLV_SERVICE_MESH_11S,
+	WMI_TLV_SERVICE_HALF_RATE_QUARTER_RATE_SUPPORT,
+	WMI_TLV_SERVICE_VDEV_RX_FILTER,
+	WMI_TLV_SERVICE_P2P_LISTEN_OFFLOAD_SUPPORT,
+	WMI_TLV_SERVICE_MARK_FIRST_WAKEUP_PACKET,
+	WMI_TLV_SERVICE_MULTIPLE_MCAST_FILTER_SET,
+	WMI_TLV_SERVICE_HOST_MANAGED_RX_REORDER,
+	WMI_TLV_SERVICE_FLASH_RDWR_SUPPORT,
+	WMI_TLV_SERVICE_WLAN_STATS_REPORT,
+	WMI_TLV_SERVICE_TX_MSDU_ID_NEW_PARTITION_SUPPORT,
+	WMI_TLV_SERVICE_DFS_PHYERR_OFFLOAD,
 };
 
 #define WMI_SERVICE_IS_ENABLED(wmi_svc_bmap, svc_id, len) \
@@ -1121,6 +1165,8 @@ wmi_tlv_svc_map(const __le32 *in, unsign
 	       WMI_SERVICE_MDNS_OFFLOAD, len);
 	SVCMAP(WMI_TLV_SERVICE_SAP_AUTH_OFFLOAD,
 	       WMI_SERVICE_SAP_AUTH_OFFLOAD, len);
+	SVCMAP(WMI_TLV_SERVICE_MGMT_TX_WMI,
+	       WMI_SERVICE_MGMT_TX_WMI, len);
 }
 
 #undef SVCMAP
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -195,6 +195,7 @@ enum wmi_service {
 	WMI_SERVICE_SMART_LOGGING_SUPPORT,
 	WMI_SERVICE_TDLS_CONN_TRACKER_IN_HOST_MODE,
 	WMI_SERVICE_TDLS_EXPLICIT_MODE_ONLY,
+	WMI_SERVICE_MGMT_TX_WMI,
 
 	/* keep last */
 	WMI_SERVICE_MAX,