Revert "qcacmn: Mesh throughput enhancements"

This reverts commit I89ff27994477a5637979a9cd6a397286144b2535. Change-Id: I7421f3572c46ed27a2d96724b2bbbe40c0704e5f CRs-Fixed: 2177160
2018-01-23 22:44:37 +05:30
--- a/dp/inc/cdp_txrx_cmn_struct.h
+++ b/dp/inc/cdp_txrx_cmn_struct.h
@@ -1006,14 +1006,6 @@ struct cdp_tx_ingress_stats {
 		uint32_t res_full;
 	} dropped;

-	/* Mesh packets info */
-	struct {
-		/* packets sent to fw */
-		uint32_t exception_fw;
-		/* packets completions received from fw */
-		uint32_t completion_fw;
-	} mesh;
-
 	/*Number of packets classified by CCE*/
 	uint32_t cce_classified;

--- a/dp/wifi3.0/dp_main.c
+++ b/dp/wifi3.0/dp_main.c
@@ -2978,10 +2978,7 @@ static void dp_vdev_register_wifi3(struct cdp_vdev *vdev_handle,
 	vdev->me_convert = txrx_ops->me_convert;

 	/* TODO: Enable the following once Tx code is integrated */
-	if (vdev->mesh_vdev)
-		txrx_ops->tx.tx = dp_tx_send_mesh;
-	else
-		txrx_ops->tx.tx = dp_tx_send;
+	txrx_ops->tx.tx = dp_tx_send;

 	QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_INFO_LOW,
 		"DP Vdev Register success");
@@ -4290,8 +4287,6 @@ static inline void dp_aggregate_pdev_stats(struct dp_pdev *pdev)
 		DP_STATS_AGGR(pdev, vdev, tx_i.dropped.res_full);
 		DP_STATS_AGGR(pdev, vdev, tx_i.cce_classified);
 		DP_STATS_AGGR(pdev, vdev, tx_i.cce_classified_raw);
-		DP_STATS_AGGR(pdev, vdev, tx_i.mesh.exception_fw);
-		DP_STATS_AGGR(pdev, vdev, tx_i.mesh.completion_fw);

 		pdev->stats.tx_i.dropped.dropped_pkt.num =
 			pdev->stats.tx_i.dropped.dma_error +
@@ -4411,15 +4406,10 @@ dp_print_pdev_tx_stats(struct dp_pdev *pdev)
 	DP_PRINT_STATS("	Bytes = %llu",
 			pdev->stats.tx_i.nawds_mcast.bytes);
 	DP_PRINT_STATS("CCE Classified:");
-	DP_PRINT_STATS("	CCE Classified Packets: %u",
+	DP_TRACE(FATAL, "	CCE Classified Packets: %u",
 			pdev->stats.tx_i.cce_classified);
-	DP_PRINT_STATS("	RAW CCE Classified Packets: %u",
+	DP_TRACE(FATAL, "	RAW CCE Classified Packets: %u",
 			pdev->stats.tx_i.cce_classified_raw);
-	DP_PRINT_STATS("Mesh stats:");
-	DP_PRINT_STATS("	frames to firmware: %u",
-			pdev->stats.tx_i.mesh.exception_fw);
-	DP_PRINT_STATS("	completions from fw: %u",
-			pdev->stats.tx_i.mesh.completion_fw);
 }

 /**
--- a/dp/wifi3.0/dp_tx.c
+++ b/dp/wifi3.0/dp_tx.c
@@ -471,8 +471,7 @@ struct dp_tx_ext_desc_elem_s *dp_tx_prepare_ext_desc(struct dp_vdev *vdev,
 		return NULL;
 	}

-	if (msdu_info->exception_fw &&
-			qdf_unlikely(vdev->mesh_vdev)) {
+	if (qdf_unlikely(vdev->mesh_vdev)) {
 		qdf_mem_copy(&cached_ext_desc[HAL_TX_EXTENSION_DESC_LEN_BYTES],
 				&msdu_info->meta_data[0],
 				sizeof(struct htt_tx_msdu_desc_ext2_t));
@@ -527,7 +526,7 @@ struct dp_tx_ext_desc_elem_s *dp_tx_prepare_ext_desc(struct dp_vdev *vdev,
 static
 struct dp_tx_desc_s *dp_tx_prepare_desc_single(struct dp_vdev *vdev,
 		qdf_nbuf_t nbuf, uint8_t desc_pool_id,
-		struct dp_tx_msdu_info_s *msdu_info)
+		uint32_t *meta_data)
 {
 	uint8_t align_pad;
 	uint8_t is_exception = 0;
@@ -587,8 +586,8 @@ struct dp_tx_desc_s *dp_tx_prepare_desc_single(struct dp_vdev *vdev,
 	 *  |                             |
 	 *  |-----------------------------|
 	 */
-	if (qdf_unlikely((msdu_info->exception_fw)) ||
-				(vdev->opmode == wlan_op_mode_ocb)) {
+	if (qdf_unlikely(vdev->mesh_vdev ||
+				(vdev->opmode == wlan_op_mode_ocb))) {
 		align_pad = ((unsigned long) qdf_nbuf_data(nbuf)) & 0x7;
 		if (qdf_nbuf_push_head(nbuf, align_pad) == NULL) {
 			QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
@@ -597,7 +596,7 @@ struct dp_tx_desc_s *dp_tx_prepare_desc_single(struct dp_vdev *vdev,
 		}

 		htt_hdr_size = dp_tx_prepare_htt_metadata(vdev, nbuf,
-				msdu_info->meta_data);
+				meta_data);
 		if (htt_hdr_size == 0)
 			goto failure;
 		tx_desc->pkt_offset = align_pad + htt_hdr_size;
@@ -697,7 +696,7 @@ static struct dp_tx_desc_s *dp_tx_prepare_desc(struct dp_vdev *vdev,
 	tx_desc->flags |= DP_TX_DESC_FLAG_TO_FW;
 	qdf_atomic_inc(&pdev->num_tx_exception);
 #endif
-	if (qdf_unlikely(msdu_info->exception_fw))
+	if (qdf_unlikely(vdev->mesh_vdev))
 		tx_desc->flags |= DP_TX_DESC_FLAG_TO_FW;

 	tx_desc->msdu_ext_desc = msdu_ext_desc;
@@ -1170,21 +1169,19 @@ static void dp_non_std_tx_comp_free_buff(struct dp_tx_desc_s *tx_desc,
 *         nbuf when it fails to send
 */
 static qdf_nbuf_t dp_tx_send_msdu_single(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
-		struct dp_tx_msdu_info_s *msdu_info,
-		uint16_t peer_id)
+		uint8_t tid, struct dp_tx_queue *tx_q,
+		uint32_t *meta_data, uint16_t peer_id)
 {
 	struct dp_pdev *pdev = vdev->pdev;
 	struct dp_soc *soc = pdev->soc;
 	struct dp_tx_desc_s *tx_desc;
 	QDF_STATUS status;
-	struct dp_tx_queue *tx_q = &(msdu_info->tx_queue);
 	void *hal_srng = soc->tcl_data_ring[tx_q->ring_id].hal_srng;
 	uint16_t htt_tcl_metadata = 0;
-	uint8_t tid = msdu_info->tid;

 	HTT_TX_TCL_METADATA_VALID_HTT_SET(htt_tcl_metadata, 0);
 	/* Setup Tx descriptor for an MSDU, and MSDU extension descriptor */
-	tx_desc = dp_tx_prepare_desc_single(vdev, nbuf, tx_q->desc_pool_id, msdu_info);
+	tx_desc = dp_tx_prepare_desc_single(vdev, nbuf, tx_q->desc_pool_id, meta_data);
 	if (!tx_desc) {
 		QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
 			  "%s Tx_desc prepare Fail vdev %pK queue %d\n",
@@ -1490,14 +1487,14 @@ qdf_nbuf_t dp_tx_extract_mesh_meta_data(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
 	struct htt_tx_msdu_desc_ext2_t *meta_data =
 				(struct htt_tx_msdu_desc_ext2_t *)&msdu_info->meta_data[0];

-	mhdr = (struct meta_hdr_s *)qdf_nbuf_data(nbuf);
-
-	if (CB_FTYPE_MESH_TX_INFO != qdf_nbuf_get_tx_ftype(nbuf)) {
-		msdu_info->exception_fw = 0;
-		goto remove_meta_hdr;
+	nbuf = qdf_nbuf_unshare(nbuf);
+	if (nbuf == NULL) {
+		QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
+				"qdf_nbuf_unshare failed\n");
+		return nbuf;
 	}

-	msdu_info->exception_fw = 1;
+	mhdr = (struct meta_hdr_s *)qdf_nbuf_data(nbuf);

 	qdf_mem_set(meta_data, sizeof(struct htt_tx_msdu_desc_ext2_t), 0);

@@ -1534,7 +1531,6 @@ qdf_nbuf_t dp_tx_extract_mesh_meta_data(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
 	meta_data->valid_key_flags = 1;
 	meta_data->key_flags = (mhdr->keyix & 0x3);

-remove_meta_hdr:
 	if (qdf_nbuf_pull_head(nbuf, sizeof(struct meta_hdr_s)) == NULL) {
 		QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
 				"qdf_nbuf_pull_head failed\n");
@@ -1543,12 +1539,12 @@ remove_meta_hdr:
 	}

 	QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_DEBUG,
-			"%s , Meta hdr %0x %0x %0x %0x %0x to_fw %d\n",
+			"%s , Meta hdr %0x %0x %0x %0x %0x\n",
 			__func__, msdu_info->meta_data[0],
 			msdu_info->meta_data[1],
 			msdu_info->meta_data[2],
 			msdu_info->meta_data[3],
-			msdu_info->meta_data[4], msdu_info->exception_fw);
+			msdu_info->meta_data[4]);

 	return nbuf;
 }
@@ -1575,7 +1571,7 @@ qdf_nbuf_t dp_tx_extract_mesh_meta_data(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
 * return: NULL on success nbuf on failure
 */
 static qdf_nbuf_t dp_tx_prepare_nawds(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
-		struct dp_tx_msdu_info_s *msdu_info)
+		uint8_t tid, struct dp_tx_queue *tx_q, uint32_t *meta_data)
 {
 	struct dp_peer *peer = NULL;
 	struct dp_soc *soc = vdev->pdev->soc;
@@ -1613,8 +1609,8 @@ static qdf_nbuf_t dp_tx_prepare_nawds(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
 			}

 			peer_id = peer->peer_ids[0];
-			nbuf_copy = dp_tx_send_msdu_single(vdev, nbuf_copy,
-					msdu_info, peer_id);
+			nbuf_copy = dp_tx_send_msdu_single(vdev, nbuf_copy, tid,
+					tx_q, meta_data, peer_id);
 			if (nbuf_copy != NULL) {
 				qdf_nbuf_free(nbuf_copy);
 				continue;
@@ -1630,64 +1626,6 @@ static qdf_nbuf_t dp_tx_prepare_nawds(struct dp_vdev *vdev, qdf_nbuf_t nbuf,
 }
 #endif

-/**
- * dp_tx_send_mesh() - Transmit mesh frame on a given VAP
- * @vap_dev: DP vdev handle
- * @nbuf: skb
- *
- * Entry point for Core Tx layer (DP_TX) invoked from
- * hard_start_xmit in OSIF/HDD
- *
- * Return: NULL on success,
- *         nbuf when it fails to send
- */
-#ifdef MESH_MODE_SUPPORT
-qdf_nbuf_t dp_tx_send_mesh(void *vap_dev, qdf_nbuf_t nbuf)
-{
-	struct meta_hdr_s *mhdr;
-	qdf_nbuf_t nbuf_mesh = NULL;
-	qdf_nbuf_t nbuf_clone = NULL;
-	struct dp_vdev *vdev = (struct dp_vdev *) vap_dev;
-
-	nbuf_mesh = qdf_nbuf_unshare(nbuf);
-	if (nbuf_mesh == NULL) {
-		QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
-				"qdf_nbuf_unshare failed\n");
-		return nbuf;
-	}
-	nbuf = nbuf_mesh;
-
-	mhdr = (struct meta_hdr_s *)qdf_nbuf_data(nbuf);
-	if (mhdr->flags & METAHDR_FLAG_INFO_UPDATED) {
-		nbuf_clone = qdf_nbuf_clone(nbuf);
-		if (nbuf_clone == NULL) {
-			QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
-				"qdf_nbuf_clone failed\n");
-			return nbuf;
-		}
-		qdf_nbuf_set_tx_ftype(nbuf_clone, CB_FTYPE_MESH_TX_INFO);
-	}
-
-	if (nbuf_clone) {
-		if (!dp_tx_send(vap_dev, nbuf_clone)) {
-			DP_STATS_INC(vdev, tx_i.mesh.exception_fw, 1);
-		} else
-			qdf_nbuf_free(nbuf_clone);
-	}
-
-	qdf_nbuf_set_tx_ftype(nbuf, CB_FTYPE_INVALID);
-	return dp_tx_send(vap_dev, nbuf);
-}
-
-#else
-
-qdf_nbuf_t dp_tx_send_mesh(void *vap_dev, qdf_nbuf_t nbuf)
-{
-	return dp_tx_send(vap_dev, nbuf);
-}
-
-#endif
-
 /**
 * dp_tx_send() - Transmit a frame on a given VAP
 * @vap_dev: DP vdev handle
@@ -1833,7 +1771,8 @@ qdf_nbuf_t dp_tx_send(void *vap_dev, qdf_nbuf_t nbuf)
 	 * prepare direct-buffer type TCL descriptor and enqueue to TCL
 	 * SRNG. There is no need to setup a MSDU extension descriptor.
 	 */
-	nbuf = dp_tx_send_msdu_single(vdev, nbuf, &msdu_info, peer_id);
+	nbuf = dp_tx_send_msdu_single(vdev, nbuf, msdu_info.tid,
+			&msdu_info.tx_queue, msdu_info.meta_data, peer_id);

 	return nbuf;

@@ -1970,7 +1909,9 @@ void dp_tx_reinject_handler(struct dp_tx_desc_s *tx_desc, uint8_t *status)

 				nbuf_copy = dp_tx_send_msdu_single(vdev,
 						nbuf_copy,
-						&msdu_info,
+						msdu_info.tid,
+						&msdu_info.tx_queue,
+						msdu_info.meta_data,
 						peer_id);

 				if (nbuf_copy) {
@@ -1995,7 +1936,9 @@ void dp_tx_reinject_handler(struct dp_tx_desc_s *tx_desc, uint8_t *status)
 					1, qdf_nbuf_len(nbuf));

 		nbuf = dp_tx_send_msdu_single(vdev,
-					nbuf, &msdu_info, peer_id);
+				nbuf, msdu_info.tid,
+				&msdu_info.tx_queue,
+				msdu_info.meta_data, peer_id);

 		if (nbuf) {
 			QDF_TRACE(QDF_MODULE_ID_DP,
@@ -2144,14 +2087,10 @@ static inline void dp_tx_comp_free_buf(struct dp_soc *soc,
 			ts.ppdu_id, nbuf) == QDF_STATUS_SUCCESS)
 		return;

-	if (qdf_likely(!vdev->mesh_vdev))
+	if (!vdev->mesh_vdev) {
 		qdf_nbuf_free(nbuf);
-	else {
-		if (desc->flags & DP_TX_DESC_FLAG_TO_FW) {
-			qdf_nbuf_free(nbuf);
-			DP_STATS_INC(vdev, tx_i.mesh.completion_fw, 1);
-		} else
-			vdev->osif_tx_free_ext((nbuf));
+	} else {
+		vdev->osif_tx_free_ext((nbuf));
 	}
 }

@@ -2447,8 +2386,7 @@ static inline void dp_tx_comp_process_tx_status(struct dp_tx_desc_s *tx_desc,
 			(ts.status == HAL_TX_TQM_RR_REM_CMD_REM));

 	/* Update per-packet stats */
-	if (qdf_unlikely(vdev->mesh_vdev) &&
-			!(tx_desc->flags & DP_TX_DESC_FLAG_TO_FW))
+	if (qdf_unlikely(vdev->mesh_vdev))
 		dp_tx_comp_fill_tx_completion_stats(tx_desc, &ts);

 	/* Update peer level stats */
--- a/dp/wifi3.0/dp_tx.h
+++ b/dp/wifi3.0/dp_tx.h
@@ -115,8 +115,6 @@ struct dp_tx_queue {
 * @u.tso_info: TSO information for TSO frame types
 * 	     (chain of the TSO segments, number of segments)
 * @u.sg_info: Scatter Gather information for non-TSO SG frames
- * @meta_data: Mesh meta header information
- * @exception_fw: Duplicate frame to be sent to firmware
 *
 * This structure holds the complete MSDU information needed to program the
 * Hardware TCL and MSDU extension descriptors for different frame types
@@ -131,8 +129,7 @@ struct dp_tx_msdu_info_s {
 		struct qdf_tso_info_t tso_info;
 		struct dp_tx_sg_info_s sg_info;
 	} u;
-	uint32_t meta_data[6];
-	uint8_t exception_fw;
+	uint32_t meta_data[5];
 };

 QDF_STATUS dp_tx_vdev_attach(struct dp_vdev *vdev);
@@ -146,7 +143,6 @@ QDF_STATUS dp_tx_pdev_detach(struct dp_pdev *pdev);
 QDF_STATUS dp_tx_pdev_attach(struct dp_pdev *pdev);

 qdf_nbuf_t dp_tx_send(void *data_vdev, qdf_nbuf_t nbuf);
-qdf_nbuf_t dp_tx_send_mesh(void *data_vdev, qdf_nbuf_t nbuf);

 #ifdef CONVERGED_TDLS_ENABLE
 qdf_nbuf_t dp_tx_non_std(struct cdp_vdev *vdev_handle,
--- a/qdf/linux/src/i_qdf_nbuf.h
+++ b/qdf/linux/src/i_qdf_nbuf.h
@@ -583,7 +583,6 @@ typedef enum {
 	CB_FTYPE_INTRABSS_FWD = 5,
 	CB_FTYPE_RX_INFO = 6,
 	CB_FTYPE_MESH_RX_INFO = 7,
-	CB_FTYPE_MESH_TX_INFO = 8,
 } CB_FTYPE;

 /*