msm: ipa3: Move IPA headers building to IPAHAL

IPA headers building is a logic related to H/W.
As such, migrating this logic to IPAHAL (H/W abstraction
layer) of IPA driver and adapt the core driver code to use
it. New internal S/W API is added to access IPAHAL for
headers building.

CRs-fixed: 989231
Change-Id: I2cec6c6f9fe7aea0e2276b01133f8c3505b9919f
Signed-off-by: Amir Levy <alevy@codeaurora.org>

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

@@ -22,12 +22,6 @@ static const u32 ipa_hdr_proc_ctx_bin_sz[IPA_HDR_PROC_CTX_BIN_MAX] = { 32, 64};
 #define HDR_PROC_TYPE_IS_VALID(type) \
 	((type) >= 0 && (type) < IPA_HDR_PROC_MAX)
 
-/* uCP command numbers */
-#define IPA_HDR_UCP_802_3_TO_802_3 6
-#define IPA_HDR_UCP_802_3_TO_ETHII 7
-#define IPA_HDR_UCP_ETHII_TO_802_3 8
-#define IPA_HDR_UCP_ETHII_TO_ETHII 9
-
 /**
  * ipa3_generate_hdr_hw_tbl() - generates the headers table
  * @mem:	[out] buffer to put the header table
@@ -60,70 +54,36 @@ static int ipa3_generate_hdr_hw_tbl(struct ipa3_mem_buffer *mem)
 			continue;
 		IPADBG_LOW("hdr of len %d ofst=%d\n", entry->hdr_len,
 				entry->offset_entry->offset);
-		memcpy(mem->base + entry->offset_entry->offset, entry->hdr,
-				entry->hdr_len);
+		ipahal_cp_hdr_to_hw_buff(mem->base, entry->offset_entry->offset,
+				entry->hdr, entry->hdr_len);
 	}
 
 	return 0;
 }
 
-static void ipa3_hdr_proc_ctx_to_hw_format(struct ipa3_mem_buffer *mem,
+static int ipa3_hdr_proc_ctx_to_hw_format(struct ipa3_mem_buffer *mem,
 	u32 hdr_base_addr)
 {
 	struct ipa3_hdr_proc_ctx_entry *entry;
+	int ret;
 
 	list_for_each_entry(entry,
 			&ipa3_ctx->hdr_proc_ctx_tbl.head_proc_ctx_entry_list,
 			link) {
 		IPADBG_LOW("processing type %d ofst=%d\n",
 			entry->type, entry->offset_entry->offset);
-		if (entry->type == IPA_HDR_PROC_NONE) {
-			struct ipa3_hdr_proc_ctx_add_hdr_seq *ctx;
-
-			ctx = (struct ipa3_hdr_proc_ctx_add_hdr_seq *)
-				(mem->base + entry->offset_entry->offset);
-			ctx->hdr_add.tlv.type = IPA_PROC_CTX_TLV_TYPE_HDR_ADD;
-			ctx->hdr_add.tlv.length = 1;
-			ctx->hdr_add.tlv.value = entry->hdr->hdr_len;
-			ctx->hdr_add.hdr_addr = (entry->hdr->is_hdr_proc_ctx) ?
-				entry->hdr->phys_base :
-				hdr_base_addr +
-				entry->hdr->offset_entry->offset;
-			IPADBG_LOW("header address 0x%x\n",
-				ctx->hdr_add.hdr_addr);
-			ctx->end.type = IPA_PROC_CTX_TLV_TYPE_END;
-			ctx->end.length = 0;
-			ctx->end.value = 0;
-		} else {
-			struct ipa3_hdr_proc_ctx_add_hdr_cmd_seq *ctx;
-
-			ctx = (struct ipa3_hdr_proc_ctx_add_hdr_cmd_seq *)
-				(mem->base + entry->offset_entry->offset);
-			ctx->hdr_add.tlv.type = IPA_PROC_CTX_TLV_TYPE_HDR_ADD;
-			ctx->hdr_add.tlv.length = 1;
-			ctx->hdr_add.tlv.value = entry->hdr->hdr_len;
-			ctx->hdr_add.hdr_addr = (entry->hdr->is_hdr_proc_ctx) ?
-				entry->hdr->phys_base :
-				hdr_base_addr +
-				entry->hdr->offset_entry->offset;
-			IPADBG_LOW("header address 0x%x\n",
-				ctx->hdr_add.hdr_addr);
-			ctx->cmd.type = IPA_PROC_CTX_TLV_TYPE_PROC_CMD;
-			ctx->cmd.length = 0;
-			if (entry->type == IPA_HDR_PROC_ETHII_TO_ETHII)
-				ctx->cmd.value = IPA_HDR_UCP_ETHII_TO_ETHII;
-			else if (entry->type == IPA_HDR_PROC_ETHII_TO_802_3)
-				ctx->cmd.value = IPA_HDR_UCP_ETHII_TO_802_3;
-			else if (entry->type == IPA_HDR_PROC_802_3_TO_ETHII)
-				ctx->cmd.value = IPA_HDR_UCP_802_3_TO_ETHII;
-			else if (entry->type == IPA_HDR_PROC_802_3_TO_802_3)
-				ctx->cmd.value = IPA_HDR_UCP_802_3_TO_802_3;
-			IPADBG_LOW("command id %d\n", ctx->cmd.value);
-			ctx->end.type = IPA_PROC_CTX_TLV_TYPE_END;
-			ctx->end.length = 0;
-			ctx->end.value = 0;
-		}
+		ret = ipahal_cp_proc_ctx_to_hw_buff(entry->type, mem->base,
+				entry->offset_entry->offset,
+				entry->hdr->hdr_len,
+				entry->hdr->is_hdr_proc_ctx,
+				entry->hdr->phys_base,
+				hdr_base_addr,
+				entry->hdr->offset_entry->offset);
+		if (ret)
+			return ret;
 	}
+
+	return 0;
 }
 
 /**
@@ -162,9 +122,7 @@ static int ipa3_generate_hdr_proc_ctx_hw_tbl(u32 hdr_sys_addr,
 	memset(aligned_mem->base, 0, aligned_mem->size);
 	hdr_base_addr = (ipa3_ctx->hdr_tbl_lcl) ? IPA_MEM_PART(apps_hdr_ofst) :
 		hdr_sys_addr;
-	ipa3_hdr_proc_ctx_to_hw_format(aligned_mem, hdr_base_addr);
-
-	return 0;
+	return ipa3_hdr_proc_ctx_to_hw_format(aligned_mem, hdr_base_addr);
 }
 
 /**
@@ -395,9 +353,7 @@ static int __ipa_add_hdr_proc_ctx(struct ipa_hdr_proc_ctx_add *proc_ctx,
 		hdr_entry->ref_cnt++;
 	entry->cookie = IPA_COOKIE;
 
-	needed_len = (proc_ctx->type == IPA_HDR_PROC_NONE) ?
-			sizeof(struct ipa3_hdr_proc_ctx_add_hdr_seq) :
-			sizeof(struct ipa3_hdr_proc_ctx_add_hdr_cmd_seq);
+	needed_len = ipahal_get_proc_ctx_needed_len(proc_ctx->type);
 
 	if (needed_len <= ipa_hdr_proc_ctx_bin_sz[IPA_HDR_PROC_CTX_BIN0]) {
 		bin = IPA_HDR_PROC_CTX_BIN0;

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

@@ -16,11 +16,6 @@
 
 /* This header defines various HW related data types */
 
-/* Processing context TLV type */
-#define IPA_PROC_CTX_TLV_TYPE_END 0
-#define IPA_PROC_CTX_TLV_TYPE_HDR_ADD 1
-#define IPA_PROC_CTX_TLV_TYPE_PROC_CMD 3
-
 #define IPA_RULE_ID_INVALID 0x3FF
 
 /**
@@ -94,40 +89,6 @@ struct ipa3_rt_rule_hw_hdr {
 	} u;
 };
 
-/**
- * struct ipa3_hdr_proc_ctx_tlv -
- * HW structure of IPA processing context header - TLV part
- * @type: 0 - end type
- *        1 - header addition type
- *        3 - processing command type
- * @length: number of bytes after tlv
- *        for type:
- *        0 - needs to be 0
- *        1 - header addition length
- *        3 - number of 32B including type and length.
- * @value: specific value for type
- *        for type:
- *        0 - needs to be 0
- *        1 - header length
- *        3 - command ID (see IPA_HDR_UCP_* definitions)
- */
-struct ipa3_hdr_proc_ctx_tlv {
-	u32 type:8;
-	u32 length:8;
-	u32 value:16;
-};
-
-/**
- * struct ipa3_hdr_proc_ctx_hdr_add -
- * HW structure of IPA processing context - add header tlv
- * @tlv: IPA processing context TLV
- * @hdr_addr: processing context header address
- */
-struct ipa3_hdr_proc_ctx_hdr_add {
-	struct ipa3_hdr_proc_ctx_tlv tlv;
-	u32 hdr_addr;
-};
-
 #define IPA_A5_MUX_HDR_EXCP_FLAG_IP		BIT(7)
 #define IPA_A5_MUX_HDR_EXCP_FLAG_NAT		BIT(6)
 #define IPA_A5_MUX_HDR_EXCP_FLAG_SW_FLT	BIT(5)

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

@@ -395,30 +395,6 @@ struct ipa3_hdr_proc_ctx_offset_entry {
 	u32 bin;
 };
 
-/**
- * struct ipa3_hdr_proc_ctx_add_hdr_seq -
- * IPA processing context header - add header sequence
- * @hdr_add: add header command
- * @end: tlv end command (cmd.type must be 0)
- */
-struct ipa3_hdr_proc_ctx_add_hdr_seq {
-	struct ipa3_hdr_proc_ctx_hdr_add hdr_add;
-	struct ipa3_hdr_proc_ctx_tlv end;
-};
-
-/**
- * struct ipa3_hdr_proc_ctx_add_hdr_cmd_seq -
- * IPA processing context header - process command sequence
- * @hdr_add: add header command
- * @cmd: tlv processing command (cmd.type must be 3)
- * @end: tlv end command (cmd.type must be 0)
- */
-struct ipa3_hdr_proc_ctx_add_hdr_cmd_seq {
-	struct ipa3_hdr_proc_ctx_hdr_add hdr_add;
-	struct ipa3_hdr_proc_ctx_tlv cmd;
-	struct ipa3_hdr_proc_ctx_tlv end;
-};
-
 /**
  struct ipa3_hdr_proc_ctx_entry - IPA processing context header table entry
  * @link: entry's link in global header table entries list

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

@@ -1018,6 +1018,229 @@ static void ipahal_debugfs_init(void) {}
 static void ipahal_debugfs_remove(void) {}
 #endif /* CONFIG_DEBUG_FS */
 
+/*
+ * ipahal_cp_hdr_to_hw_buff_v3() - copy header to hardware buffer according to
+ * base address and offset given.
+ * @base: dma base address
+ * @offset: offset from base address where the data will be copied
+ * @hdr: the header to be copied
+ * @hdr_len: the length of the header
+ */
+static void ipahal_cp_hdr_to_hw_buff_v3(void *const base, u32 offset,
+		u8 *const hdr, u32 hdr_len)
+{
+	memcpy(base + offset, hdr, hdr_len);
+}
+
+/*
+ * ipahal_cp_proc_ctx_to_hw_buff_v3() - copy processing context to
+ * base address and offset given.
+ * @type: header processing context type (no processing context,
+ *	IPA_HDR_PROC_ETHII_TO_ETHII etc.)
+ * @base: dma base address
+ * @offset: offset from base address where the data will be copied
+ * @hdr_len: the length of the header
+ * @is_hdr_proc_ctx: header is located in phys_base (true) or hdr_base_addr
+ * @phys_base: memory location in DDR
+ * @hdr_base_addr: base address in table
+ * @hdr_offset_entry: offset from hdr_base_addr in table
+ */
+static int ipahal_cp_proc_ctx_to_hw_buff_v3(enum ipa_hdr_proc_type type,
+		void *const base, u32 offset,
+		u32 hdr_len, bool is_hdr_proc_ctx,
+		dma_addr_t phys_base, u32 hdr_base_addr,
+		u32 hdr_offset_entry){
+	if (type == IPA_HDR_PROC_NONE) {
+		struct ipa_hw_hdr_proc_ctx_add_hdr_seq *ctx;
+
+		ctx = (struct ipa_hw_hdr_proc_ctx_add_hdr_seq *)
+			(base + offset);
+		ctx->hdr_add.tlv.type = IPA_PROC_CTX_TLV_TYPE_HDR_ADD;
+		ctx->hdr_add.tlv.length = 1;
+		ctx->hdr_add.tlv.value = hdr_len;
+		ctx->hdr_add.hdr_addr = is_hdr_proc_ctx ? phys_base :
+			hdr_base_addr + hdr_offset_entry;
+		IPAHAL_DBG("header address 0x%x\n",
+			ctx->hdr_add.hdr_addr);
+		ctx->end.type = IPA_PROC_CTX_TLV_TYPE_END;
+		ctx->end.length = 0;
+		ctx->end.value = 0;
+	} else {
+		struct ipa_hw_hdr_proc_ctx_add_hdr_cmd_seq *ctx;
+
+		ctx = (struct ipa_hw_hdr_proc_ctx_add_hdr_cmd_seq *)
+			(base + offset);
+		ctx->hdr_add.tlv.type = IPA_PROC_CTX_TLV_TYPE_HDR_ADD;
+		ctx->hdr_add.tlv.length = 1;
+		ctx->hdr_add.tlv.value = hdr_len;
+		ctx->hdr_add.hdr_addr = is_hdr_proc_ctx ? phys_base :
+			hdr_base_addr + hdr_offset_entry;
+		IPAHAL_DBG("header address 0x%x\n",
+			ctx->hdr_add.hdr_addr);
+		ctx->cmd.type = IPA_PROC_CTX_TLV_TYPE_PROC_CMD;
+		ctx->cmd.length = 0;
+		switch (type) {
+		case IPA_HDR_PROC_ETHII_TO_ETHII:
+			ctx->cmd.value = IPA_HDR_UCP_ETHII_TO_ETHII;
+			break;
+		case IPA_HDR_PROC_ETHII_TO_802_3:
+			ctx->cmd.value = IPA_HDR_UCP_ETHII_TO_802_3;
+			break;
+		case IPA_HDR_PROC_802_3_TO_ETHII:
+			ctx->cmd.value = IPA_HDR_UCP_802_3_TO_ETHII;
+			break;
+		case IPA_HDR_PROC_802_3_TO_802_3:
+			ctx->cmd.value = IPA_HDR_UCP_802_3_TO_802_3;
+			break;
+		default:
+			IPAHAL_ERR("unknown ipa_hdr_proc_type %d", type);
+			WARN_ON(1);
+			return -EINVAL;
+		}
+		IPAHAL_DBG("command id %d\n", ctx->cmd.value);
+		ctx->end.type = IPA_PROC_CTX_TLV_TYPE_END;
+		ctx->end.length = 0;
+		ctx->end.value = 0;
+	}
+
+	return 0;
+}
+
+/*
+ * ipahal_get_proc_ctx_needed_len_v3() - calculates the needed length for
+ * addition of header processing context according to the type of processing
+ * context.
+ * @type: header processing context type (no processing context,
+ *	IPA_HDR_PROC_ETHII_TO_ETHII etc.)
+ */
+static int ipahal_get_proc_ctx_needed_len_v3(enum ipa_hdr_proc_type type)
+{
+	return (type == IPA_HDR_PROC_NONE) ?
+			sizeof(struct ipa_hw_hdr_proc_ctx_add_hdr_seq) :
+			sizeof(struct ipa_hw_hdr_proc_ctx_add_hdr_cmd_seq);
+}
+
+/*
+ * struct ipahal_hdr_funcs - headers handling functions for specific IPA
+ * version
+ * @ipahal_cp_hdr_to_hw_buff - copy function for regular headers
+ */
+struct ipahal_hdr_funcs {
+	void (*ipahal_cp_hdr_to_hw_buff)(void *const base, u32 offset,
+			u8 *const hdr, u32 hdr_len);
+
+	int (*ipahal_cp_proc_ctx_to_hw_buff)(enum ipa_hdr_proc_type type,
+			void *const base, u32 offset, u32 hdr_len,
+			bool is_hdr_proc_ctx, dma_addr_t phys_base,
+			u32 hdr_base_addr, u32 hdr_offset_entry);
+
+	int (*ipahal_get_proc_ctx_needed_len)(enum ipa_hdr_proc_type type);
+};
+
+static struct ipahal_hdr_funcs hdr_funcs;
+
+static void ipahal_hdr_init(enum ipa_hw_type ipa_hw_type)
+{
+
+	IPAHAL_DBG("Entry - HW_TYPE=%d\n", ipa_hw_type);
+
+	/*
+	 * once there are changes in HW and need to use different case, insert
+	 * new case for the new h/w. put the default always for the latest HW
+	 * and make sure all previous supported versions have their cases.
+	 */
+	switch (ipa_hw_type) {
+	case IPA_HW_v3_0:
+	default:
+		hdr_funcs.ipahal_cp_hdr_to_hw_buff =
+				ipahal_cp_hdr_to_hw_buff_v3;
+		hdr_funcs.ipahal_cp_proc_ctx_to_hw_buff =
+				ipahal_cp_proc_ctx_to_hw_buff_v3;
+		hdr_funcs.ipahal_get_proc_ctx_needed_len =
+				ipahal_get_proc_ctx_needed_len_v3;
+	}
+	IPAHAL_DBG("Exit\n");
+}
+
+/*
+ * ipahal_cp_hdr_to_hw_buff() - copy header to hardware buffer according to
+ * base address and offset given.
+ * @base: dma base address
+ * @offset: offset from base address where the data will be copied
+ * @hdr: the header to be copied
+ * @hdr_len: the length of the header
+ */
+void ipahal_cp_hdr_to_hw_buff(void *base, u32 offset, u8 *const hdr,
+		u32 hdr_len)
+{
+	IPAHAL_DBG_LOW("Entry\n");
+	IPAHAL_DBG("base %p, offset %d, hdr %p, hdr_len %d\n", base,
+			offset, hdr, hdr_len);
+	if (!base || !hdr_len || !hdr) {
+		IPAHAL_ERR("failed on validating params");
+		return;
+	}
+
+	hdr_funcs.ipahal_cp_hdr_to_hw_buff(base, offset, hdr, hdr_len);
+
+	IPAHAL_DBG_LOW("Exit\n");
+}
+
+/*
+ * ipahal_cp_proc_ctx_to_hw_buff() - copy processing context to
+ * base address and offset given.
+ * @type: type of header processing context
+ * @base: dma base address
+ * @offset: offset from base address where the data will be copied
+ * @hdr_len: the length of the header
+ * @is_hdr_proc_ctx: header is located in phys_base (true) or hdr_base_addr
+ * @phys_base: memory location in DDR
+ * @hdr_base_addr: base address in table
+ * @hdr_offset_entry: offset from hdr_base_addr in table
+ */
+int ipahal_cp_proc_ctx_to_hw_buff(enum ipa_hdr_proc_type type,
+		void *const base, u32 offset, u32 hdr_len,
+		bool is_hdr_proc_ctx, dma_addr_t phys_base,
+		u32 hdr_base_addr, u32 hdr_offset_entry)
+{
+	IPAHAL_DBG(
+		"type %d, base %p, offset %d, hdr_len %d, is_hdr_proc_ctx %d, hdr_base_addr %d, hdr_offset_entry %d\n"
+			, type, base, offset, hdr_len, is_hdr_proc_ctx,
+			hdr_base_addr, hdr_offset_entry);
+
+	if (!base ||
+		!hdr_len ||
+		(!phys_base && !hdr_base_addr) ||
+		!hdr_base_addr) {
+		IPAHAL_ERR("failed on validating params");
+		return -EINVAL;
+	}
+
+	return hdr_funcs.ipahal_cp_proc_ctx_to_hw_buff(type, base, offset,
+			hdr_len, is_hdr_proc_ctx, phys_base,
+			hdr_base_addr, hdr_offset_entry);
+}
+
+/*
+ * ipahal_get_proc_ctx_needed_len() - calculates the needed length for
+ * addition of header processing context according to the type of processing
+ * context
+ * @type: header processing context type (no processing context,
+ *	IPA_HDR_PROC_ETHII_TO_ETHII etc.)
+ */
+int ipahal_get_proc_ctx_needed_len(enum ipa_hdr_proc_type type)
+{
+	int res;
+
+	IPAHAL_DBG("entry\n");
+
+	res = hdr_funcs.ipahal_get_proc_ctx_needed_len(type);
+
+	IPAHAL_DBG("Exit\n");
+
+	return res;
+}
+
 int ipahal_init(enum ipa_hw_type ipa_hw_type, void __iomem *base)
 {
 	int result;
@@ -1065,6 +1288,8 @@ int ipahal_init(enum ipa_hw_type ipa_hw_type, void __iomem *base)
 		goto bail_free_ctx;
 	}
 
+	ipahal_hdr_init(ipa_hw_type);
+
 	ipahal_debugfs_init();
 
 	return 0;

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

@@ -597,6 +597,41 @@ void ipahal_pkt_status_parse(const void *unparsed_status,
 const char *ipahal_pkt_status_exception_str(
 	enum ipahal_pkt_status_exception exception);
 
+/*
+ * ipahal_cp_hdr_to_hw_buff() - copy header to hardware buffer according to
+ * base address and offset given.
+ * @base: dma base address
+ * @offset: offset from base address where the data will be copied
+ * @hdr: the header to be copied
+ * @hdr_len: the length of the header
+ */
+void ipahal_cp_hdr_to_hw_buff(void *base, u32 offset, u8 *hdr, u32 hdr_len);
+
+/*
+ * ipahal_cp_proc_ctx_to_hw_buff() - copy processing context to
+ * base address and offset given.
+ * @type: type of header processing context
+ * @base: dma base address
+ * @offset: offset from base address where the data will be copied
+ * @hdr_len: the length of the header
+ * @is_hdr_proc_ctx: header is located in phys_base (true) or hdr_base_addr
+ * @phys_base: memory location in DDR
+ * @hdr_base_addr: base address in table
+ * @hdr_offset_entry: offset from hdr_base_addr in table
+ */
+int ipahal_cp_proc_ctx_to_hw_buff(enum ipa_hdr_proc_type type,
+		void *base, u32 offset, u32 hdr_len,
+		bool is_hdr_proc_ctx, dma_addr_t phys_base,
+		u32 hdr_base_addr, u32 hdr_offset_entry);
+
+/*
+ * ipahal_get_proc_ctx_needed_len() - calculates the needed length for addition
+ * of header processing context according to the type of processing context
+ * @type: header processing context type (no processing context,
+ *	IPA_HDR_PROC_ETHII_TO_ETHII etc.)
+ */
+int ipahal_get_proc_ctx_needed_len(enum ipa_hdr_proc_type type);
+
 int ipahal_init(enum ipa_hw_type ipa_hw_type, void __iomem *base);
 void ipahal_destroy(void);
 

drivers/platform/msm/ipa/ipa_v3/ipahal/ipahal_i.h

@@ -471,4 +471,75 @@ struct ipa_pkt_status_hw {
 /* Size of H/W Packet Status */
 #define IPA3_0_PKT_STATUS_SIZE 32
 
+/* Headers and processing context H/W structures and definitions */
+
+/* uCP command numbers */
+#define IPA_HDR_UCP_802_3_TO_802_3 6
+#define IPA_HDR_UCP_802_3_TO_ETHII 7
+#define IPA_HDR_UCP_ETHII_TO_802_3 8
+#define IPA_HDR_UCP_ETHII_TO_ETHII 9
+
+/* Processing context TLV type */
+#define IPA_PROC_CTX_TLV_TYPE_END 0
+#define IPA_PROC_CTX_TLV_TYPE_HDR_ADD 1
+#define IPA_PROC_CTX_TLV_TYPE_PROC_CMD 3
+
+/**
+ * struct ipa_hw_hdr_proc_ctx_tlv -
+ * HW structure of IPA processing context header - TLV part
+ * @type: 0 - end type
+ *        1 - header addition type
+ *        3 - processing command type
+ * @length: number of bytes after tlv
+ *        for type:
+ *        0 - needs to be 0
+ *        1 - header addition length
+ *        3 - number of 32B including type and length.
+ * @value: specific value for type
+ *        for type:
+ *        0 - needs to be 0
+ *        1 - header length
+ *        3 - command ID (see IPA_HDR_UCP_* definitions)
+ */
+struct ipa_hw_hdr_proc_ctx_tlv {
+	u32 type:8;
+	u32 length:8;
+	u32 value:16;
+};
+
+/**
+ * struct ipa_hw_hdr_proc_ctx_hdr_add -
+ * HW structure of IPA processing context - add header tlv
+ * @tlv: IPA processing context TLV
+ * @hdr_addr: processing context header address
+ */
+struct ipa_hw_hdr_proc_ctx_hdr_add {
+	struct ipa_hw_hdr_proc_ctx_tlv tlv;
+	u32 hdr_addr;
+};
+
+/**
+ * struct ipa_hw_hdr_proc_ctx_add_hdr_seq -
+ * IPA processing context header - add header sequence
+ * @hdr_add: add header command
+ * @end: tlv end command (cmd.type must be 0)
+ */
+struct ipa_hw_hdr_proc_ctx_add_hdr_seq {
+	struct ipa_hw_hdr_proc_ctx_hdr_add hdr_add;
+	struct ipa_hw_hdr_proc_ctx_tlv end;
+};
+
+/**
+ * struct ipa_hw_hdr_proc_ctx_add_hdr_cmd_seq -
+ * IPA processing context header - process command sequence
+ * @hdr_add: add header command
+ * @cmd: tlv processing command (cmd.type must be 3)
+ * @end: tlv end command (cmd.type must be 0)
+ */
+struct ipa_hw_hdr_proc_ctx_add_hdr_cmd_seq {
+	struct ipa_hw_hdr_proc_ctx_hdr_add hdr_add;
+	struct ipa_hw_hdr_proc_ctx_tlv cmd;
+	struct ipa_hw_hdr_proc_ctx_tlv end;
+};
+
 #endif /* _IPAHAL_I_H_ */