msm: ipa3: dynamic change ul/dl ring/aggre/uc-threshold

This change dynamically sets MHIP ring size ul/dl, aggregation
parameters, uc threshold from debug FS.

Change-Id: Ib189c50de86b01beebcac10c75e0afec56c8da42
Signed-off-by: Michael Adisumarta <madisuma@codeaurora.org>

drivers/platform/msm/ipa/ipa_v3/ipa.c

@@ -63,6 +63,11 @@
 
 #define IPA_SUSPEND_BUSY_TIMEOUT (msecs_to_jiffies(10))
 
+#define DEFAULT_MPM_RING_SIZE_UL 6
+#define DEFAULT_MPM_RING_SIZE_DL 16
+#define DEFAULT_MPM_TETH_AGGR_SIZE 24
+#define DEFAULT_MPM_UC_THRESH_SIZE 4
+
 /*
  * The following for adding code (ie. for EMULATION) not found on x86.
  */
@@ -8294,6 +8299,12 @@ static int ipa3_pre_init(const struct ipa3_plat_drv_res *resource_p,
 	ipa3_ctx->ulso_ip_id_max = resource_p->ulso_ip_id_max;
 	ipa3_ctx->use_pm_wrapper = resource_p->use_pm_wrapper;
 	ipa3_ctx->use_tput_est_ep = resource_p->use_tput_est_ep;
+	ipa3_ctx->mpm_ring_size_ul_cache = DEFAULT_MPM_RING_SIZE_UL;
+	ipa3_ctx->mpm_ring_size_ul = DEFAULT_MPM_RING_SIZE_UL;
+	ipa3_ctx->mpm_ring_size_dl_cache = DEFAULT_MPM_RING_SIZE_DL;
+	ipa3_ctx->mpm_ring_size_dl = DEFAULT_MPM_RING_SIZE_DL;
+	ipa3_ctx->mpm_teth_aggr_size = DEFAULT_MPM_TETH_AGGR_SIZE;
+	ipa3_ctx->mpm_uc_thresh = DEFAULT_MPM_UC_THRESH_SIZE;
 
 	if (resource_p->gsi_fw_file_name) {
 		ipa3_ctx->gsi_fw_file_name =

drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c

@@ -555,6 +555,129 @@ static ssize_t ipa3_read_keep_awake(struct file *file, char __user *ubuf,
 	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, nbytes);
 }
 
+static ssize_t ipa3_read_mpm_ring_size_dl(struct file *file, char __user *ubuf,
+	size_t count, loff_t *ppos)
+{
+	int nbytes;
+
+	nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
+			"IPA_MPM_RING_SIZE_DL = %d\n",
+			ipa3_ctx->mpm_ring_size_dl);
+
+	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, nbytes);
+}
+
+static ssize_t ipa3_read_mpm_ring_size_ul(struct file *file, char __user *ubuf,
+	size_t count, loff_t *ppos)
+{
+	int nbytes;
+
+	nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
+			"IPA_MPM_RING_SIZE_UL = %d\n",
+			ipa3_ctx->mpm_ring_size_ul);
+
+	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, nbytes);
+}
+
+static ssize_t ipa3_read_mpm_uc_thresh(struct file *file, char __user *ubuf,
+	size_t count, loff_t *ppos)
+{
+	int nbytes;
+
+	nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
+			"IPA_MPM_UC_THRESH = %d\n", ipa3_ctx->mpm_uc_thresh);
+
+	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, nbytes);
+}
+
+static ssize_t ipa3_read_mpm_teth_aggr_size(struct file *file,
+	char __user *ubuf, size_t count, loff_t *ppos)
+{
+	int nbytes;
+
+	nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
+			"IPA_MPM_TETH_AGGR_SIZE = %d\n",
+			ipa3_ctx->mpm_teth_aggr_size);
+
+	return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, nbytes);
+}
+
+static ssize_t ipa3_write_mpm_ring_size_dl(struct file *file,
+	const char __user *buf,
+	size_t count, loff_t *ppos)
+{
+	s8 option = 0;
+	int ret;
+
+	ret = kstrtos8_from_user(buf, count, 0, &option);
+	if (ret)
+		return ret;
+	/* as option is type s8, max it can take is 127 */
+	if ((option > 0) && (option <= IPA_MPM_MAX_RING_LEN))
+		ipa3_ctx->mpm_ring_size_dl = option;
+	else
+		IPAERR("Invalid dl ring size =%d: range is 1 to %d\n",
+			option, IPA_MPM_MAX_RING_LEN);
+	return count;
+}
+
+static ssize_t ipa3_write_mpm_ring_size_ul(struct file *file,
+	const char __user *buf,
+	size_t count, loff_t *ppos)
+{
+	s8 option = 0;
+	int ret;
+
+	ret = kstrtos8_from_user(buf, count, 0, &option);
+	if (ret)
+		return ret;
+	/* as option is type s8, max it can take is 127 */
+	if ((option > 0) && (option <= IPA_MPM_MAX_RING_LEN))
+		ipa3_ctx->mpm_ring_size_ul = option;
+	else
+		IPAERR("Invalid ul ring size =%d: range is 1 to %d\n",
+			option, IPA_MPM_MAX_RING_LEN);
+	return count;
+}
+
+static ssize_t ipa3_write_mpm_uc_thresh(struct file *file,
+	const char __user *buf,
+	size_t count, loff_t *ppos)
+{
+	s8 option = 0;
+	int ret;
+
+	ret = kstrtos8_from_user(buf, count, 0, &option);
+	if (ret)
+		return ret;
+	/* as option is type s8, max it can take is 127 */
+	if ((option > 0) && (option <= IPA_MPM_MAX_UC_THRESH))
+		ipa3_ctx->mpm_uc_thresh = option;
+	else
+		IPAERR("Invalid uc thresh =%d: range is 1 to %d\n",
+			option, IPA_MPM_MAX_UC_THRESH);
+	return count;
+}
+
+static ssize_t ipa3_write_mpm_teth_aggr_size(struct file *file,
+	const char __user *buf,
+	size_t count, loff_t *ppos)
+{
+	s8 option = 0;
+	int ret;
+
+	ret = kstrtos8_from_user(buf, count, 0, &option);
+	if (ret)
+		return ret;
+	/* as option is type s8, max it can take is 127 */
+	if ((option > 0) && (option <= IPA_MAX_TETH_AGGR_BYTE_LIMIT))
+		ipa3_ctx->mpm_teth_aggr_size = option;
+	else
+		IPAERR("Invalid agg byte limit =%d: range is 1 to %d\n",
+			option, IPA_MAX_TETH_AGGR_BYTE_LIMIT);
+	return count;
+}
+
 static ssize_t ipa3_read_holb_events(struct file *file, char __user *ubuf, size_t count,
 		loff_t *ppos)
 {
@@ -3058,6 +3181,26 @@ static const struct ipa3_debugfs_file debugfs_files[] = {
 			.read = ipa3_read_keep_awake,
 			.write = ipa3_write_keep_awake,
 		}
+	}, {
+		"mpm_ring_size_dl", IPA_READ_WRITE_MODE, NULL, {
+			.read = ipa3_read_mpm_ring_size_dl,
+			.write = ipa3_write_mpm_ring_size_dl,
+		}
+	}, {
+		"mpm_ring_size_ul", IPA_READ_WRITE_MODE, NULL, {
+			.read = ipa3_read_mpm_ring_size_ul,
+			.write = ipa3_write_mpm_ring_size_ul,
+		}
+	}, {
+		"mpm_uc_thresh", IPA_READ_WRITE_MODE, NULL, {
+			.read = ipa3_read_mpm_uc_thresh,
+			.write = ipa3_write_mpm_uc_thresh,
+		}
+	}, {
+		"mpm_teth_aggr_size", IPA_READ_WRITE_MODE, NULL, {
+			.read = ipa3_read_mpm_teth_aggr_size,
+			.write = ipa3_write_mpm_teth_aggr_size,
+		}
 	}, {
 		"set_clk_idx", IPA_READ_WRITE_MODE, NULL, {
 			.write = ipa3_set_clk_index,

drivers/platform/msm/ipa/ipa_v3/ipa_i.h

@@ -84,6 +84,9 @@
 #define IPA_Q6_FNR_IDX_CNT (52)
 #define IPA_Q6_FNR_END_IDX (IPA_Q6_FNR_START_IDX+IPA_Q6_FNR_IDX_CNT-1)
 #define IPA_Q6_FNR_STATS_SIZE (IPA_Q6_FNR_IDX_CNT * 16)
+#define IPA_MPM_MAX_RING_LEN 64
+#define IPA_MAX_TETH_AGGR_BYTE_LIMIT 24
+#define IPA_MPM_MAX_UC_THRESH 4
 
 /* ULSO Constants */
 enum {
@@ -2051,6 +2054,12 @@ struct ipa3_eth_error_stats {
  * @uc_wigig_ctx: WIGIG specific fields for uC interface
  * @ipa_num_pipes: The number of pipes used by IPA HW
  * @skip_uc_pipe_reset: Indicates whether pipe reset via uC needs to be avoided
+ * @mpm_ring_size_dl_cache: To cache the dl ring size configured previously
+ * @mpm_ring_size_dl: MHIP all DL pipe's ring size
+ * @mpm_ring_size_ul_cache: To cache the ul ring size configured previously
+ * @mpm_ring_size_ul: MHIP all UL pipe's ring size
+ * @mpm_teth_aggr_size: MHIP teth aggregation byte size
+ * @mpm_uc_thresh: uc threshold for enabling uc flow control
  * @ipa_client_apps_wan_cons_agg_gro: RMNET_IOCTL_INGRESS_FORMAT_AGG_DATA
  * @apply_rg10_wa: Indicates whether to use register group 10 workaround
  * @gsi_ch20_wa: Indicates whether to apply GSI physical channel 20 workaround
@@ -2208,6 +2217,12 @@ struct ipa3_context {
 	u32 wan_rx_ring_size;
 	u32 lan_rx_ring_size;
 	bool skip_uc_pipe_reset;
+	int mpm_ring_size_dl;
+	int mpm_ring_size_dl_cache;
+	int mpm_ring_size_ul_cache;
+	int mpm_ring_size_ul;
+	int mpm_teth_aggr_size;
+	int mpm_uc_thresh;
 	unsigned long gsi_dev_hdl;
 	u32 ee;
 	bool apply_rg10_wa;

drivers/platform/msm/ipa/ipa_v3/ipa_mpm.c

@@ -62,12 +62,9 @@
 
 #define IPA_MPM_MAX_MHIP_CHAN 3
 
-#define IPA_MPM_NUM_RING_DESC 6
-#define IPA_MPM_RING_LEN IPA_MPM_NUM_RING_DESC
-
 #define IPA_MPM_MHI_HOST_UL_CHANNEL 4
 #define IPA_MPM_MHI_HOST_DL_CHANNEL  5
-#define TETH_AGGR_TIME_LIMIT 10000 /* 10ms */
+#define TETH_AGGR_TIME_LIMIT 1000 /* 1ms */
 #define TETH_AGGR_BYTE_LIMIT 24
 #define TETH_AGGR_DL_BYTE_LIMIT 16
 #define TRE_BUFF_SIZE 32768
@@ -369,17 +366,17 @@ struct ipa_mpm_clk_cnt_type {
 struct producer_rings {
 	struct mhi_p_desc *tr_va;
 	struct mhi_p_desc *er_va;
-	void *tr_buff_va[IPA_MPM_RING_LEN];
+	void *tr_buff_va[IPA_MPM_MAX_RING_LEN];
 	dma_addr_t tr_pa;
 	dma_addr_t er_pa;
-	dma_addr_t tr_buff_c_iova[IPA_MPM_RING_LEN];
+	dma_addr_t tr_buff_c_iova[IPA_MPM_MAX_RING_LEN];
 	/*
 	 * The iova generated for AP CB,
 	 * used only for dma_map_single to flush the cache.
 	 */
 	dma_addr_t ap_iova_er;
 	dma_addr_t ap_iova_tr;
-	dma_addr_t ap_iova_buff[IPA_MPM_RING_LEN];
+	dma_addr_t ap_iova_buff[IPA_MPM_MAX_RING_LEN];
 };
 
 struct ipa_mpm_mhi_driver {
@@ -421,7 +418,6 @@ struct ipa_mpm_context {
 };
 
 #define IPA_MPM_DESC_SIZE (sizeof(struct mhi_p_desc))
-#define IPA_MPM_RING_TOTAL_SIZE (IPA_MPM_RING_LEN * IPA_MPM_DESC_SIZE)
 /* WA: Make the IPA_MPM_PAGE_SIZE from 16k (next power of ring size) to
  * 32k. This is to make sure IOMMU map happens for the same size
  * for all TR/ER and doorbells.
@@ -691,8 +687,14 @@ static dma_addr_t ipa_mpm_smmu_map(void *va_addr,
 		cb->next_addr = iova_p + size_p;
 		iova = iova_p;
 	} else {
-		iova = dma_map_single(ipa3_ctx->pdev, va_addr,
+		if (dir == DMA_TO_HIPA)
-					IPA_MPM_RING_TOTAL_SIZE, dir);
+			iova = dma_map_single(ipa3_ctx->pdev, va_addr,
+					ipa3_ctx->mpm_ring_size_dl *
+					IPA_MPM_DESC_SIZE, dir);
+		else
+			iova = dma_map_single(ipa3_ctx->pdev, va_addr,
+					ipa3_ctx->mpm_ring_size_ul *
+					IPA_MPM_DESC_SIZE, dir);
 
 		if (dma_mapping_error(ipa3_ctx->pdev, iova)) {
 			IPA_MPM_ERR("dma_map_single failure for entry\n");
@@ -765,10 +767,16 @@ static void ipa_mpm_smmu_unmap(dma_addr_t carved_iova, int sz, int dir,
 
 		cb->next_addr -= size_p;
 		dma_unmap_single(ipa3_ctx->pdev, ap_cb_iova,
-			IPA_MPM_RING_TOTAL_SIZE, dir);
+			size_p, dir);
 	} else {
-		dma_unmap_single(ipa3_ctx->pdev, ap_cb_iova,
+		if (dir == DMA_TO_HIPA)
-			IPA_MPM_RING_TOTAL_SIZE, dir);
+			dma_unmap_single(ipa3_ctx->pdev, ap_cb_iova,
+				ipa3_ctx->mpm_ring_size_dl *
+				IPA_MPM_DESC_SIZE, dir);
+		else
+			dma_unmap_single(ipa3_ctx->pdev, ap_cb_iova,
+				ipa3_ctx->mpm_ring_size_ul *
+				IPA_MPM_DESC_SIZE, dir);
 	}
 }
 
@@ -920,6 +928,7 @@ static int ipa_mpm_connect_mhip_gsi_pipe(enum ipa_client_type mhip_client,
 	int i, k;
 	int result;
 	struct ipa3_ep_context *ep;
+	int ring_size;
 
 	if (mhip_client == IPA_CLIENT_MAX)
 		goto fail_gen;
@@ -943,11 +952,19 @@ static int ipa_mpm_connect_mhip_gsi_pipe(enum ipa_client_type mhip_client,
 
 	IPA_MPM_FUNC_ENTRY();
 
-	if (IPA_MPM_RING_TOTAL_SIZE > PAGE_SIZE) {
+	if (IPA_CLIENT_IS_PROD(mhip_client) &&
-		IPA_MPM_ERR("Ring Size / allocation mismatch\n");
+		(ipa3_ctx->mpm_ring_size_dl *
+			IPA_MPM_DESC_SIZE > PAGE_SIZE)) {
+		IPA_MPM_ERR("Ring Size dl / allocation mismatch\n");
 		ipa_assert();
 	}
 
+	if (IPA_CLIENT_IS_PROD(mhip_client) &&
+		(ipa3_ctx->mpm_ring_size_ul *
+			IPA_MPM_DESC_SIZE > PAGE_SIZE)) {
+		IPA_MPM_ERR("Ring Size ul / allocation mismatch\n");
+		ipa_assert();
+	}
 	/* Only ring need alignment, separate from buffer */
 	er_ring_va = (struct mhi_p_desc *) get_zeroed_page(GFP_KERNEL);
 
@@ -965,7 +982,11 @@ static int ipa_mpm_connect_mhip_gsi_pipe(enum ipa_client_type mhip_client,
 		DMA_TO_HIPA : DMA_FROM_HIPA;
 
 	/* allocate transfer ring elements */
-	for (i = 1, k = 1; i < IPA_MPM_RING_LEN; i++, k++) {
+	if (IPA_CLIENT_IS_PROD(mhip_client))
+		ring_size = ipa3_ctx->mpm_ring_size_dl;
+	else
+		ring_size = ipa3_ctx->mpm_ring_size_ul;
+	for (i = 1, k = 1; i < ring_size; i++, k++) {
 		buff_va = kzalloc(TRE_BUFF_SIZE, GFP_KERNEL);
 		if (!buff_va)
 			goto fail_buff_alloc;
@@ -1087,7 +1108,7 @@ static int ipa_mpm_connect_mhip_gsi_pipe(enum ipa_client_type mhip_client,
 	gsi_params.evt_ring_params.intr = GSI_INTR_MSI;
 	gsi_params.evt_ring_params.re_size = GSI_EVT_RING_RE_SIZE_16B;
 	gsi_params.evt_ring_params.ring_len =
-		(IPA_MPM_RING_LEN) * GSI_EVT_RING_RE_SIZE_16B;
+		(ring_size) * GSI_EVT_RING_RE_SIZE_16B;
 	gsi_params.evt_ring_params.ring_base_vaddr = NULL;
 	gsi_params.evt_ring_params.int_modt = 0;
 	gsi_params.evt_ring_params.int_modc = 0;
@@ -1113,7 +1134,7 @@ static int ipa_mpm_connect_mhip_gsi_pipe(enum ipa_client_type mhip_client,
 	/* chan_id is set in ipa3_request_gsi_channel() */
 	gsi_params.chan_params.re_size = GSI_CHAN_RE_SIZE_16B;
 	gsi_params.chan_params.ring_len =
-		(IPA_MPM_RING_LEN) * GSI_EVT_RING_RE_SIZE_16B;
+		(ring_size) * GSI_EVT_RING_RE_SIZE_16B;
 	gsi_params.chan_params.ring_base_vaddr = NULL;
 	gsi_params.chan_params.use_db_eng = GSI_CHAN_DIRECT_MODE;
 	gsi_params.chan_params.max_prefetch = GSI_ONE_PREFETCH_SEG;
@@ -1214,6 +1235,7 @@ static void ipa_mpm_clean_mhip_chan(int mhi_idx,
 	int i;
 	int ipa_ep_idx;
 	int result;
+	int ring_size;
 
 	IPA_MPM_FUNC_ENTRY();
 
@@ -1301,7 +1323,11 @@ static void ipa_mpm_clean_mhip_chan(int mhi_idx,
 	}
 
 	/* deallocate/Unmap transfer ring buffers */
-	for (i = 1; i < IPA_MPM_RING_LEN; i++) {
+	if (IPA_CLIENT_IS_PROD(mhip_client))
+		ring_size = ipa3_ctx->mpm_ring_size_dl_cache;
+	else
+		ring_size = ipa3_ctx->mpm_ring_size_ul_cache;
+	for (i = 1; i < ring_size; i++) {
 		if (IPA_CLIENT_IS_PROD(mhip_client)) {
 			ipa_mpm_smmu_unmap(
 			(dma_addr_t)
@@ -2267,13 +2293,13 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,
 			IPA_MPM_MHI_HOST_UL_CHANNEL;
 		ch->chan_props.ch_ctx.erindex =
 			mhi_dev->ul_event_id;
-		ch->chan_props.ch_ctx.rlen = (IPA_MPM_RING_LEN) *
+		ch->chan_props.ch_ctx.rlen = (ipa3_ctx->mpm_ring_size_ul) *
 			GSI_EVT_RING_RE_SIZE_16B;
 		/* Store Event properties */
 		ch->evt_props.ev_ctx.update_rp_modc = 1;
 		ch->evt_props.ev_ctx.update_rp_intmodt = 0;
 		ch->evt_props.ev_ctx.ertype = 1;
-		ch->evt_props.ev_ctx.rlen = (IPA_MPM_RING_LEN) *
+		ch->evt_props.ev_ctx.rlen = (ipa3_ctx->mpm_ring_size_ul) *
 			GSI_EVT_RING_RE_SIZE_16B;
 		ch->evt_props.ev_ctx.buff_size = TRE_BUFF_SIZE;
 		ch->evt_props.device_db =
@@ -2321,13 +2347,13 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,
 		ch->chan_props.ch_ctx.chtype =
 			IPA_MPM_MHI_HOST_DL_CHANNEL;
 		ch->chan_props.ch_ctx.erindex = mhi_dev->dl_event_id;
-		ch->chan_props.ch_ctx.rlen = (IPA_MPM_RING_LEN) *
+		ch->chan_props.ch_ctx.rlen = (ipa3_ctx->mpm_ring_size_dl) *
 			GSI_EVT_RING_RE_SIZE_16B;
 		/* Store Event properties */
 		ch->evt_props.ev_ctx.update_rp_modc = 0;
 		ch->evt_props.ev_ctx.update_rp_intmodt = 0;
 		ch->evt_props.ev_ctx.ertype = 1;
-		ch->evt_props.ev_ctx.rlen = (IPA_MPM_RING_LEN) *
+		ch->evt_props.ev_ctx.rlen = (ipa3_ctx->mpm_ring_size_dl) *
 			GSI_EVT_RING_RE_SIZE_16B;
 		ch->evt_props.ev_ctx.buff_size = TRE_BUFF_SIZE;
 		ch->evt_props.device_db =
@@ -2399,7 +2425,8 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,
 			(phys_addr_t)(ul_out_params.db_reg_phs_addr_lsb), 4);
 
 		wp_addr = ipa_mpm_ctx->md[probe_id].ul_prod_ring.tr_pa +
-			((IPA_MPM_RING_LEN - 1) * GSI_CHAN_RE_SIZE_16B);
+			((ipa3_ctx->mpm_ring_size_ul - 1) *
+			GSI_CHAN_RE_SIZE_16B);
 
 		iowrite32(wp_addr, db_addr);
 
@@ -2432,7 +2459,8 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,
 		db_addr = ioremap((phys_addr_t)(evt_ring_db_addr_low), 4);
 
 		wp_addr = ipa_mpm_ctx->md[probe_id].ul_prod_ring.er_pa +
-			((IPA_MPM_RING_LEN + 1) * GSI_EVT_RING_RE_SIZE_16B);
+			((ipa3_ctx->mpm_ring_size_ul + 1) *
+			GSI_EVT_RING_RE_SIZE_16B);
 		IPA_MPM_DBG("Host UL ER  DB = 0X%pK, wp_addr = 0X%0x",
 			db_addr, wp_addr);
 
@@ -2445,7 +2473,8 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,
 			4);
 
 		wp_addr = ipa_mpm_ctx->md[probe_id].ul_prod_ring.tr_pa +
-			((IPA_MPM_RING_LEN + 1) * GSI_EVT_RING_RE_SIZE_16B);
+			((ipa3_ctx->mpm_ring_size_ul + 1) *
+			GSI_EVT_RING_RE_SIZE_16B);
 
 		iowrite32(wp_addr, db_addr);
 		iounmap(db_addr);
@@ -2458,7 +2487,8 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,
 		4);
 
 		wp_addr = ipa_mpm_ctx->md[probe_id].dl_prod_ring.tr_pa +
-			((IPA_MPM_RING_LEN - 1) * GSI_CHAN_RE_SIZE_16B);
+			((ipa3_ctx->mpm_ring_size_dl - 1) *
+			GSI_CHAN_RE_SIZE_16B);
 
 		IPA_MPM_DBG("Device DL TR  DB = 0X%pK, wp_addr = 0X%0x",
 			db_addr, wp_addr);
@@ -2479,7 +2509,8 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,
 		4);
 
 		wp_addr = ipa_mpm_ctx->md[probe_id].dl_prod_ring.er_pa +
-			((IPA_MPM_RING_LEN + 1) * GSI_EVT_RING_RE_SIZE_16B);
+			((ipa3_ctx->mpm_ring_size_dl + 1) *
+			GSI_EVT_RING_RE_SIZE_16B);
 
 		iowrite32(wp_addr, db_addr);
 		IPA_MPM_DBG("Device  UL ER  DB = 0X%pK,wp_addr = 0X%0x",
@@ -2502,7 +2533,8 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,
 		db_addr = ioremap((phys_addr_t)(evt_ring_db_addr_low), 4);
 
 		wp_addr = ipa_mpm_ctx->md[probe_id].dl_prod_ring.tr_pa +
-			((IPA_MPM_RING_LEN + 1) * GSI_EVT_RING_RE_SIZE_16B);
+			((ipa3_ctx->mpm_ring_size_dl + 1) *
+			GSI_EVT_RING_RE_SIZE_16B);
 		iowrite32(wp_addr, db_addr);
 		IPA_MPM_DBG("Host  DL ER  DB = 0X%pK, wp_addr = 0X%0x",
 			db_addr, wp_addr);
@@ -2596,7 +2628,9 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,
 		ipa_ep_idx = ipa3_get_ep_mapping(ul_prod);
 		ep = &ipa3_ctx->ep[ipa_ep_idx];
 		ret = ipa3_uc_send_enable_flow_control(ep->gsi_chan_hdl,
-			IPA_MPM_RING_LEN / 4);
+			ipa3_ctx->mpm_uc_thresh);
+		IPA_MPM_DBG("Updated uc threshold to %d",
+			ipa3_ctx->mpm_uc_thresh);
 		if (ret) {
 			IPA_MPM_ERR("Err %d flow control enable\n", ret);
 			goto fail_flow_control;
@@ -2612,6 +2646,11 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,
 		}
 		IPA_MPM_DBG("Flow Control updated for %d", probe_id);
 	}
+	/* cache the current ring-size */
+	ipa3_ctx->mpm_ring_size_ul_cache = ipa3_ctx->mpm_ring_size_ul;
+	ipa3_ctx->mpm_ring_size_dl_cache = ipa3_ctx->mpm_ring_size_dl;
+	IPA_MPM_DBG("Mpm ring size ul/dl %d / %d",
+		ipa3_ctx->mpm_ring_size_ul, ipa3_ctx->mpm_ring_size_dl);
 	IPA_MPM_FUNC_EXIT();
 	return 0;
 
@@ -2641,9 +2680,14 @@ static void ipa_mpm_init_mhip_channel_info(void)
 		IPA_CLIENT_MHI_PRIME_TETH_CONS;
 	ipa_mpm_pipes[IPA_MPM_MHIP_CH_ID_0].ul_prod.ep_cfg =
 		mhip_ul_teth_ep_cfg;
+	ipa_mpm_pipes[IPA_MPM_MHIP_CH_ID_0].ul_prod.ep_cfg.aggr.aggr_byte_limit
+			= ipa3_ctx->mpm_teth_aggr_size;
 	ipa_mpm_pipes[IPA_MPM_MHIP_CH_ID_0].mhip_client =
 		IPA_MPM_MHIP_TETH;
 
+	IPA_MPM_DBG("Teth Aggregation byte limit =%d\n",
+		ipa3_ctx->mpm_teth_aggr_size);
+
 	/* IPA_MPM_MHIP_CH_ID_1 => MHIP RMNET PIPES */
 	ipa_mpm_pipes[IPA_MPM_MHIP_CH_ID_1].dl_cons.ipa_client =
 		IPA_CLIENT_MHI_PRIME_RMNET_PROD;

drivers/platform/msm/ipa/ipa_v3/ipa_qmi_service.c

@@ -2286,6 +2286,7 @@ int ipa3_qmi_set_aggr_info(enum ipa_aggr_enum_type_v01 aggr_enum_type)
 
 	/* replace to right qmap format */
 	aggr_req.aggr_info[1].aggr_type = aggr_enum_type;
+	aggr_req.aggr_info[1].bytes_count = ipa3_ctx->mpm_teth_aggr_size;
 	aggr_req.aggr_info[2].aggr_type = aggr_enum_type;
 	aggr_req.aggr_info[3].aggr_type = aggr_enum_type;
 	aggr_req.aggr_info[4].aggr_type = aggr_enum_type;