qcacmn: Filter rx fcs error frames for m_copy mode

Filter fcs_err frames and pass only first fcs ok msdu payload
from ppdu to upper layer

Change-Id: Ibf739193275f4f5a5c3e786abbbaa45165b5aa13
CRs-Fixed: 2439392

dp/wifi3.0/dp_rx_mon_status.c

@@ -311,6 +311,56 @@ static void dp_rx_stats_update(struct dp_pdev *pdev, struct dp_peer *peer,
 }
 #endif
 
+/*
+ * dp_rx_get_fcs_ok_msdu() - get ppdu status buffer containing fcs_ok msdu
+ * @pdev: pdev object
+ * @ppdu_info: ppdu info object
+ *
+ * Return: nbuf
+ */
+
+static inline qdf_nbuf_t
+dp_rx_get_fcs_ok_msdu(struct dp_pdev *pdev,
+		      struct hal_rx_ppdu_info *ppdu_info)
+{
+	uint16_t mpdu_fcs_ok;
+	qdf_nbuf_t status_nbuf = NULL;
+	unsigned long int fcs_ok_bitmap;
+
+	/* If fcs_ok_bitmap is zero, no need to procees further */
+	if (qdf_unlikely(!ppdu_info->com_info.mpdu_fcs_ok_bitmap))
+		return NULL;
+
+	/* Obtain fcs_ok passed index from bitmap
+	 * this index is used to get fcs passed first msdu payload
+	 */
+
+	fcs_ok_bitmap = ppdu_info->com_info.mpdu_fcs_ok_bitmap;
+	mpdu_fcs_ok = qdf_find_first_bit(&fcs_ok_bitmap, HAL_RX_MAX_MPDU);
+
+	/* Get status buffer by indexing mpdu_fcs_ok index
+	 * containing first msdu payload with fcs passed
+	 * and clone the buffer
+	 */
+	status_nbuf = ppdu_info->ppdu_msdu_info[mpdu_fcs_ok].nbuf;
+	/* Take ref of status nbuf as this nbuf is to be
+	 * freeed by upper layer.
+	 */
+	qdf_nbuf_ref(status_nbuf);
+
+	/* Free the ppdu status buffer queue */
+	qdf_nbuf_queue_free(&pdev->rx_ppdu_buf_q);
+
+	return status_nbuf;
+}
+
+static inline void
+dp_rx_handle_ppdu_status_buf(struct dp_pdev *pdev,
+			     struct hal_rx_ppdu_info *ppdu_info,
+			     qdf_nbuf_t status_nbuf)
+{
+	qdf_nbuf_queue_add(&pdev->rx_ppdu_buf_q, status_nbuf);
+}
 /**
  * dp_rx_handle_mcopy_mode() - Allocate and deliver first MSDU payload
  * @soc: core txrx main context
@@ -329,7 +379,7 @@ dp_rx_handle_mcopy_mode(struct dp_soc *soc, struct dp_pdev *pdev,
 	struct ieee80211_frame *wh;
 	uint32_t *nbuf_data;
 
-	if (!ppdu_info->msdu_info.first_msdu_payload)
+	if (!ppdu_info->fcs_ok_msdu_info.first_msdu_payload)
 		return QDF_STATUS_SUCCESS;
 
 	if (pdev->m_copy_id.rx_ppdu_id == ppdu_info->com_info.ppdu_id)
@@ -337,11 +387,12 @@ dp_rx_handle_mcopy_mode(struct dp_soc *soc, struct dp_pdev *pdev,
 
 	pdev->m_copy_id.rx_ppdu_id = ppdu_info->com_info.ppdu_id;
 
-	wh = (struct ieee80211_frame *)(ppdu_info->msdu_info.first_msdu_payload
+	wh = (struct ieee80211_frame *)
-					+ 4);
+		(ppdu_info->fcs_ok_msdu_info.first_msdu_payload + 4);
-	size = (ppdu_info->msdu_info.first_msdu_payload -
+
+	size = (ppdu_info->fcs_ok_msdu_info.first_msdu_payload -
 				qdf_nbuf_data(nbuf));
-	ppdu_info->msdu_info.first_msdu_payload = NULL;
+	ppdu_info->fcs_ok_msdu_info.first_msdu_payload = NULL;
 
 	if (qdf_nbuf_pull_head(nbuf, size) == NULL)
 		return QDF_STATUS_SUCCESS;
@@ -357,7 +408,7 @@ dp_rx_handle_mcopy_mode(struct dp_soc *soc, struct dp_pdev *pdev,
 	*nbuf_data = pdev->ppdu_info.com_info.ppdu_id;
 	/* only retain RX MSDU payload in the skb */
 	qdf_nbuf_trim_tail(nbuf, qdf_nbuf_len(nbuf) -
-				ppdu_info->msdu_info.payload_len);
+				ppdu_info->fcs_ok_msdu_info.payload_len);
 	dp_wdi_event_handler(WDI_EVENT_RX_DATA, soc,
 			nbuf, HTT_INVALID_PEER, WDI_NO_VAL, pdev->pdev_id);
 	return QDF_STATUS_E_ALREADY;
@@ -371,6 +422,49 @@ dp_rx_handle_mcopy_mode(struct dp_soc *soc, struct dp_pdev *pdev,
 }
 #endif
 
+#ifdef FEATURE_PERPKT_INFO
+static inline void
+dp_rx_process_mcopy_mode(struct dp_soc *soc, struct dp_pdev *pdev,
+			 struct hal_rx_ppdu_info *ppdu_info,
+			 uint32_t tlv_status,
+			 qdf_nbuf_t status_nbuf)
+{
+	QDF_STATUS mcopy_status;
+
+	if (qdf_unlikely(!ppdu_info->com_info.mpdu_cnt)) {
+		qdf_nbuf_free(status_nbuf);
+		return;
+	}
+	/* Add buffers to queue until we receive
+	 * HAL_TLV_STATUS_PPDU_DONE
+	 */
+	dp_rx_handle_ppdu_status_buf(pdev, ppdu_info, status_nbuf);
+
+	/* If tlv_status is PPDU_DONE, process rx_ppdu_buf_q
+	 * and devliver fcs_ok msdu buffer
+	 */
+	if (tlv_status == HAL_TLV_STATUS_PPDU_DONE) {
+		/* Get rx ppdu status buffer having fcs ok msdu */
+		status_nbuf = dp_rx_get_fcs_ok_msdu(pdev, ppdu_info);
+		if (status_nbuf) {
+			mcopy_status = dp_rx_handle_mcopy_mode(soc, pdev,
+							       ppdu_info,
+							       status_nbuf);
+			if (mcopy_status == QDF_STATUS_SUCCESS)
+				qdf_nbuf_free(status_nbuf);
+		}
+	}
+}
+#else
+static inline void
+dp_rx_process_mcopy_mode(struct dp_soc *soc, struct dp_pdev *pdev,
+			 struct hal_rx_ppdu_info *ppdu_info,
+			 uint32_t tlv_status,
+			 qdf_nbuf_t status_nbuf)
+{
+}
+#endif
+
 /**
  * dp_rx_handle_smart_mesh_mode() - Deliver header for smart mesh
  * @soc: Datapath SOC handle
@@ -571,7 +665,6 @@ dp_rx_mon_status_process_tlv(struct dp_soc *soc, uint32_t mac_id,
 	uint8_t *rx_tlv;
 	uint8_t *rx_tlv_start;
 	uint32_t tlv_status = HAL_TLV_STATUS_BUF_DONE;
-	QDF_STATUS m_copy_status = QDF_STATUS_SUCCESS;
 	QDF_STATUS enh_log_status = QDF_STATUS_SUCCESS;
 	struct cdp_pdev_mon_stats *rx_mon_stats;
 	int smart_mesh_status;
@@ -601,7 +694,8 @@ dp_rx_mon_status_process_tlv(struct dp_soc *soc, uint32_t mac_id,
 		    (rx_enh_capture_mode != CDP_RX_ENH_CAPTURE_DISABLED)) {
 			do {
 				tlv_status = hal_rx_status_get_tlv_info(rx_tlv,
-						ppdu_info, pdev->soc->hal_soc);
+						ppdu_info, pdev->soc->hal_soc,
+						status_nbuf);
 
 				dp_rx_mon_update_dbg_ppdu_stats(ppdu_info,
 								rx_mon_stats);
@@ -643,11 +737,10 @@ dp_rx_mon_status_process_tlv(struct dp_soc *soc, uint32_t mac_id,
 						pdev, ppdu_info, status_nbuf);
 			if (smart_mesh_status)
 				qdf_nbuf_free(status_nbuf);
-		} else if (pdev->mcopy_mode) {
+		} else if (qdf_unlikely(pdev->mcopy_mode)) {
-			m_copy_status = dp_rx_handle_mcopy_mode(soc,
+			dp_rx_process_mcopy_mode(soc, pdev,
-						pdev, ppdu_info, status_nbuf);
+						 ppdu_info, tlv_status,
-			if (m_copy_status == QDF_STATUS_SUCCESS)
+						 status_nbuf);
-				qdf_nbuf_free(status_nbuf);
 		} else if (rx_enh_capture_mode != CDP_RX_ENH_CAPTURE_DISABLED) {
 			if (!nbuf_used)
 				qdf_nbuf_free(status_nbuf);
@@ -1118,6 +1211,7 @@ dp_rx_pdev_mon_status_attach(struct dp_pdev *pdev, int ring_id) {
 		return status;
 
 	qdf_nbuf_queue_init(&pdev->rx_status_q);
+	qdf_nbuf_queue_init(&pdev->rx_ppdu_buf_q);
 
 	pdev->mon_ppdu_status = DP_PPDU_STATUS_START;
 

dp/wifi3.0/dp_types.h

@@ -1628,6 +1628,11 @@ struct dp_pdev {
 	uint64_t tx_ppdu_proc;
 
 	uint32_t *ppdu_tlv_buf; /* Buffer to hold HTT ppdu stats TLVs*/
+
+	/* nbuf queue to maintain rx ppdu status buffer
+	 * belonging to one ppdu
+	 */
+	qdf_nbuf_queue_t rx_ppdu_buf_q;
 };
 
 struct dp_peer;

hal/wifi3.0/hal_api_mon.h

@@ -148,6 +148,13 @@
 #define HAL_RX_GET_MSDU_AGGREGATION(rx_desc, rs)
 #endif
 
+#define HAL_RX_MPDU_FCS_BITMAP_0_31_OFFSET 0x00000000FFFFFFFF
+#define HAL_RX_MPDU_FCS_BITMAP_LSB 32
+#define HAL_RX_MPDU_FCS_BITMAP_32_63_OFFSET 0xFFFFFFFF00000000
+
+/* Max MPDUs per status buffer */
+#define HAL_RX_MAX_MPDU 64
+
 enum {
 	DP_PPDU_STATUS_START,
 	DP_PPDU_STATUS_DONE,
@@ -395,11 +402,21 @@ struct hal_rx_ppdu_common_info {
 	uint32_t ppdu_timestamp;
 	uint32_t mpdu_cnt_fcs_ok;
 	uint32_t mpdu_cnt_fcs_err;
+	uint64_t mpdu_fcs_ok_bitmap;
+	uint32_t last_ppdu_id;
+	uint32_t mpdu_cnt;
 };
 
+/**
+ * struct hal_rx_msdu_payload_info - msdu payload info
+ * @first_msdu_payload: pointer to first msdu payload
+ * @payload_len: payload len
+ * @nbuf: status network buffer to which msdu belongs to
+ */
 struct hal_rx_msdu_payload_info {
 	uint8_t *first_msdu_payload;
 	uint32_t payload_len;
+	qdf_nbuf_t nbuf;
 };
 
 /**
@@ -431,6 +448,7 @@ struct hal_rx_ppdu_info {
 	struct mon_rx_status rx_status;
 	struct mon_rx_user_status rx_user_status[HAL_MAX_UL_MU_USERS];
 	struct hal_rx_msdu_payload_info msdu_info;
+	struct hal_rx_msdu_payload_info fcs_ok_msdu_info;
 	struct hal_rx_nac_info nac_info;
 	/* status ring PPDU start and end state */
 	uint32_t rx_state;
@@ -443,6 +461,8 @@ struct hal_rx_ppdu_info {
 	/* MPDU FCS error */
 	bool fcs_err;
 	struct hal_rx_ppdu_msdu_info rx_msdu_info[HAL_MAX_UL_MU_USERS];
+	/* first msdu payload for all mpdus in ppdu */
+	struct hal_rx_msdu_payload_info ppdu_msdu_info[HAL_RX_MAX_MPDU];
 };
 
 static inline uint32_t
@@ -491,15 +511,19 @@ static inline void hal_rx_proc_phyrx_other_receive_info_tlv(struct hal_soc *hal_
  * hal_rx_status_get_tlv_info() - process receive info TLV
  * @rx_tlv_hdr: pointer to TLV header
  * @ppdu_info: pointer to ppdu_info
+ * @hal_soc: HAL soc handle
+ * @nbuf: PPDU status netowrk buffer
  *
  * Return: HAL_TLV_STATUS_PPDU_NOT_DONE or HAL_TLV_STATUS_PPDU_DONE from tlv
  */
 static inline uint32_t
 hal_rx_status_get_tlv_info(void *rx_tlv_hdr, void *ppdu_info,
-			   struct hal_soc *hal_soc)
+			   struct hal_soc *hal_soc,
+			   qdf_nbuf_t nbuf)
 {
 	return hal_soc->ops->hal_rx_status_get_tlv_info(rx_tlv_hdr,
-							ppdu_info, hal_soc);
+							ppdu_info, hal_soc,
+							nbuf);
 }
 
 static inline

hal/wifi3.0/hal_generic_api.h

@@ -321,7 +321,7 @@ hal_rx_update_rssi_chain(struct hal_rx_ppdu_info *ppdu_info,
  */
 static inline uint32_t
 hal_rx_status_get_tlv_info_generic(void *rx_tlv_hdr, void *ppduinfo,
-			   void *halsoc)
+			   void *halsoc, qdf_nbuf_t nbuf)
 {
 	struct hal_soc *hal = (struct hal_soc *)halsoc;
 	uint32_t tlv_tag, user_id, tlv_len, value;
@@ -348,6 +348,9 @@ hal_rx_status_get_tlv_info_generic(void *rx_tlv_hdr, void *ppduinfo,
 	switch (tlv_tag) {
 
 	case WIFIRX_PPDU_START_E:
+	{
+		struct hal_rx_ppdu_common_info *com_info = &ppdu_info->com_info;
+
 		ppdu_info->com_info.ppdu_id =
 			HAL_RX_GET(rx_tlv, RX_PPDU_START_0,
 				PHY_PPDU_ID);
@@ -361,7 +364,18 @@ hal_rx_status_get_tlv_info_generic(void *rx_tlv_hdr, void *ppduinfo,
 		ppdu_info->rx_status.ppdu_timestamp =
 			ppdu_info->com_info.ppdu_timestamp;
 		ppdu_info->rx_state = HAL_RX_MON_PPDU_START;
+
+		/* If last ppdu_id doesn't match new ppdu_id,
+		 * 1. reset mpdu_cnt
+		 * 2. update last_ppdu_id with new
+		 */
+		if (com_info->ppdu_id != com_info->last_ppdu_id) {
+			com_info->mpdu_cnt = 0;
+			com_info->last_ppdu_id =
+				com_info->ppdu_id;
+		}
 		break;
+	}
 
 	case WIFIRX_PPDU_START_USER_INFO_E:
 		break;
@@ -475,6 +489,20 @@ hal_rx_status_get_tlv_info_generic(void *rx_tlv_hdr, void *ppduinfo,
 		else
 			ppdu_info->rx_status.rs_flags &=
 				(~IEEE80211_AMPDU_FLAG);
+
+		ppdu_info->com_info.mpdu_fcs_ok_bitmap =
+			(((ppdu_info->com_info.mpdu_fcs_ok_bitmap |
+			 HAL_RX_GET(rx_tlv, RX_PPDU_END_USER_STATS_8,
+				    FCS_OK_BITMAP_63_32)) <<
+				    HAL_RX_MPDU_FCS_BITMAP_LSB) &
+				    HAL_RX_MPDU_FCS_BITMAP_32_63_OFFSET);
+
+		ppdu_info->com_info.mpdu_fcs_ok_bitmap =
+			((ppdu_info->com_info.mpdu_fcs_ok_bitmap |
+			HAL_RX_GET(rx_tlv, RX_PPDU_END_USER_STATS_7,
+				   FCS_OK_BITMAP_31_0)) &
+				   HAL_RX_MPDU_FCS_BITMAP_0_31_OFFSET);
+
 		break;
 	}
 
@@ -1207,13 +1235,28 @@ hal_rx_status_get_tlv_info_generic(void *rx_tlv_hdr, void *ppduinfo,
 								ppdu_info);
 		break;
 	case WIFIRX_HEADER_E:
+	{
+		struct hal_rx_ppdu_common_info *com_info = &ppdu_info->com_info;
+		uint16_t mpdu_cnt = com_info->mpdu_cnt;
+
+		/* Update first_msdu_payload for every mpdu and increment
+		 * com_info->mpdu_cnt for every WIFIRX_HEADER_E TLV
+		 */
+		ppdu_info->ppdu_msdu_info[mpdu_cnt].first_msdu_payload =
+			rx_tlv;
+		ppdu_info->ppdu_msdu_info[mpdu_cnt].payload_len = tlv_len;
+		ppdu_info->ppdu_msdu_info[mpdu_cnt].nbuf = nbuf;
 		ppdu_info->msdu_info.first_msdu_payload = rx_tlv;
 		ppdu_info->msdu_info.payload_len = tlv_len;
 		ppdu_info->user_id = user_id;
 		ppdu_info->hdr_len = tlv_len;
 		ppdu_info->data = rx_tlv;
 		ppdu_info->data += 4;
+
+		/* for every RX_HEADER TLV increment mpdu_cnt */
+		com_info->mpdu_cnt++;
 		return HAL_TLV_STATUS_HEADER;
+	}
 	case WIFIRX_MPDU_START_E:
 	{
 		uint8_t *rx_mpdu_start =

hal/wifi3.0/hal_internal.h

@@ -338,7 +338,7 @@ struct hal_hw_txrx_ops {
 	void (*hal_reo_status_get_header)(uint32_t *d, int b, void *h);
 	uint32_t (*hal_rx_status_get_tlv_info)(void *rx_tlv_hdr,
 			void *ppdu_info,
-			void *hal);
+			void *hal, qdf_nbuf_t nbuf);
 	void (*hal_rx_wbm_err_info_get)(void *wbm_desc,
 				void *wbm_er_info);
 	void (*hal_rx_dump_mpdu_start_tlv)(void *mpdustart,