msm: ipa3: SRAM NAT, DDR NAT, back-and-forth NAT (f294db47) · Commits · e / devices / android_kernel_fairphone_FP4

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

+28 −0

Original line number	Diff line number	Diff line
		@@ -1519,6 +1519,23 @@ static int ipa3_ioctl_fnr_counter_set(unsigned long arg)
		return 0;
		}

		static int proc_sram_info_rqst(
		unsigned long arg)
		{
		struct ipa_nat_in_sram_info sram_info = { 0 };

		if (ipa3_nat_get_sram_info(&sram_info))
		return -EFAULT;

		if (copy_to_user(
		(void __user *) arg,
		&sram_info,
		sizeof(struct ipa_nat_in_sram_info)))
		return -EFAULT;

		return 0;
		}

		static long ipa3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
		{
		int retval = 0;
		@@ -1616,6 +1633,7 @@ static long ipa3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
		retval = -EFAULT;
		break;
		}

		if (ipa3_nat_init_cmd(&nat_init)) {
		retval = -EFAULT;
		break;
		@@ -1681,6 +1699,7 @@ static long ipa3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
		retval = -EFAULT;
		break;
		}

		if (ipa3_del_nat_table(&table_del)) {
		retval = -EFAULT;
		break;
		@@ -1693,6 +1712,7 @@ static long ipa3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
		retval = -EFAULT;
		break;
		}

		if (ipa3_del_ipv6ct_table(&table_del)) {
		retval = -EFAULT;
		break;
		@@ -2732,6 +2752,11 @@ static long ipa3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
		IPA_CLIENT_MAX,
		fst_switch.to_wigig);
		break;

		case IPA_IOC_GET_NAT_IN_SRAM_INFO:
		retval = proc_sram_info_rqst(arg);
		break;

		default:
		IPA_ACTIVE_CLIENTS_DEC_SIMPLE();
		return -ENOTTY;
		@@ -4652,6 +4677,9 @@ long compat_ipa3_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
		case IPA_IOC_MDFY_RT_RULE32:
		cmd = IPA_IOC_MDFY_RT_RULE;
		break;
		case IPA_IOC_GET_NAT_IN_SRAM_INFO32:
		cmd = IPA_IOC_GET_NAT_IN_SRAM_INFO;
		break;
		case IPA_IOC_COMMIT_HDR:
		case IPA_IOC_RESET_HDR:
		case IPA_IOC_COMMIT_RT:

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

+303 −119

Original line number	Diff line number	Diff line
		@@ -1634,7 +1634,8 @@ static ssize_t ipa3_read_msg(struct file file, char __user ubuf,
		}

		static void ipa3_read_table(
		char *table_addr, u32 table_size,
		char *table_addr,
		u32 table_size,
		u32 *total_num_entries,
		u32 *rule_id,
		enum ipahal_nat_type nat_type)
		@@ -1648,46 +1649,51 @@ static void ipa3_read_table(
		char *buff;
		size_t buff_size = 2 * IPA_MAX_ENTRY_STRING_LEN;

		IPADBG("\n");
		IPADBG("In\n");

		if (table_addr == NULL) {
		pr_err("NULL NAT table\n");
		return;
		goto bail;
		}

		result = ipahal_nat_entry_size(nat_type, &entry_size);

		if (result) {
		IPAERR("Failed to retrieve size of %s entry\n",
		ipahal_nat_type_str(nat_type));
		return;
		goto bail;
		}

		buff = kzalloc(buff_size, GFP_KERNEL);

		if (!buff) {
		IPAERR("Out of memory\n");
		return;
		goto bail;
		}

		for (i = 0, entry = table_addr;
		i < table_size;
		++i, ++id, entry += entry_size) {

		result = ipahal_nat_is_entry_zeroed(nat_type, entry,
		&entry_zeroed);

		if (result) {
		IPAERR(
		"Failed to determine whether the %s entry is definitely zero\n"
		, ipahal_nat_type_str(nat_type));
		goto bail;
		IPAERR("Undefined if %s entry is zero\n",
		ipahal_nat_type_str(nat_type));
		goto free_buf;
		}

		if (entry_zeroed)
		continue;

		result = ipahal_nat_is_entry_valid(nat_type, entry,
		&entry_valid);

		if (result) {
		IPAERR(
		"Failed to determine whether the %s entry is valid\n"
		, ipahal_nat_type_str(nat_type));
		goto bail;
		IPAERR("Undefined if %s entry is valid\n",
		ipahal_nat_type_str(nat_type));
		goto free_buf;
		}

		if (entry_valid) {
		@@ -1698,7 +1704,9 @@ static void ipa3_read_table(

		ipahal_nat_stringify_entry(nat_type, entry,
		buff, buff_size);

		pr_err("%s\n", buff);

		memset(buff, 0, buff_size);
		}

		@@ -1706,21 +1714,27 @@ static void ipa3_read_table(
		pr_err("\n");
		else
		pr_err("\tEmpty\n\n");
		IPADBG("return\n");
		bail:

		free_buf:
		kfree(buff);
		*rule_id = id;
		*total_num_entries += num_entries;

		bail:
		IPADBG("Out\n");
		}

		static void ipa3_start_read_memory_device(
		struct ipa3_nat_ipv6ct_common_mem *dev,
		enum ipahal_nat_type nat_type,
		u32 *num_entries)
		u32 *num_ddr_ent_ptr,
		u32 *num_sram_ent_ptr)
		{
		u32 rule_id = 0;

		IPADBG("\n");
		if (dev->is_ipv6ct_mem) {

		IPADBG("In: v6\n");

		pr_err("%s_Table_Size=%d\n",
		dev->name, dev->table_entries + 1);
		@@ -1728,30 +1742,122 @@ static void ipa3_start_read_memory_device(
		pr_err("%s_Expansion_Table_Size=%d\n",
		dev->name, dev->expn_table_entries);

		if (!dev->is_sys_mem)
		pr_err("Not supported for local(shared) memory\n");

		pr_err("\n%s Base Table:\n", dev->name);
		ipa3_read_table(dev->base_table_addr, dev->table_entries + 1,
		num_entries, &rule_id, nat_type);

		if (dev->base_table_addr)
		ipa3_read_table(
		dev->base_table_addr,
		dev->table_entries + 1,
		num_ddr_ent_ptr,
		&rule_id,
		nat_type);

		pr_err("%s Expansion Table:\n", dev->name);

		if (dev->expansion_table_addr)
		ipa3_read_table(
		dev->expansion_table_addr,
		dev->expn_table_entries,
		num_ddr_ent_ptr,
		&rule_id,
		nat_type);
		}

		if (dev->is_nat_mem) {
		struct ipa3_nat_mem nm_ptr = (struct ipa3_nat_mem ) dev;
		struct ipa3_nat_mem_loc_data *mld_ptr = NULL;
		u32 *num_ent_ptr;
		const char *type_ptr;

		IPADBG("In: v4\n");

		if (nm_ptr->active_table == IPA_NAT_MEM_IN_DDR &&
		nm_ptr->ddr_in_use) {

		mld_ptr = &nm_ptr->mem_loc[IPA_NAT_MEM_IN_DDR];
		num_ent_ptr = num_ddr_ent_ptr;
		type_ptr = "DDR based table";
		}

		if (nm_ptr->active_table == IPA_NAT_MEM_IN_SRAM &&
		nm_ptr->sram_in_use) {

		mld_ptr = &nm_ptr->mem_loc[IPA_NAT_MEM_IN_SRAM];
		num_ent_ptr = num_sram_ent_ptr;
		type_ptr = "SRAM based table";
		}

		if (mld_ptr) {
		pr_err("(%s) %s_Table_Size=%d\n",
		type_ptr,
		dev->name,
		mld_ptr->table_entries + 1);

		pr_err("(%s) %s_Expansion_Table_Size=%d\n",
		type_ptr,
		dev->name,
		mld_ptr->expn_table_entries);

		pr_err("\n(%s) %s_Base Table:\n",
		type_ptr,
		dev->name);

		if (mld_ptr->base_table_addr)
		ipa3_read_table(
		mld_ptr->base_table_addr,
		mld_ptr->table_entries + 1,
		num_ent_ptr,
		&rule_id,
		nat_type);

		pr_err("(%s) %s_Expansion Table:\n",
		type_ptr,
		dev->name);

		if (mld_ptr->expansion_table_addr)
		ipa3_read_table(
		dev->expansion_table_addr, dev->expn_table_entries,
		num_entries,
		mld_ptr->expansion_table_addr,
		mld_ptr->expn_table_entries,
		num_ent_ptr,
		&rule_id,
		nat_type);
		}
		}

		IPADBG("return\n");
		IPADBG("Out\n");
		}

		static void ipa3_finish_read_memory_device(
		struct ipa3_nat_ipv6ct_common_mem *dev,
		u32 num_entries)
		u32 num_ddr_entries,
		u32 num_sram_entries)
		{
		IPADBG("\n");
		pr_err("Overall number %s entries: %d\n\n", dev->name, num_entries);
		IPADBG("return\n");
		IPADBG("In\n");

		if (dev->is_ipv6ct_mem) {
		pr_err("Overall number %s entries: %u\n\n",
		dev->name,
		num_ddr_entries);
		} else {
		struct ipa3_nat_mem nm_ptr = (struct ipa3_nat_mem ) dev;

		if (num_ddr_entries)
		pr_err("%s: Overall number of DDR entries: %u\n\n",
		dev->name,
		num_ddr_entries);

		if (num_sram_entries)
		pr_err("%s: Overall number of SRAM entries: %u\n\n",
		dev->name,
		num_sram_entries);

		pr_err("%s: Driver focus changes to DDR(%u) to SRAM(%u)\n",
		dev->name,
		nm_ptr->switch2ddr_cnt,
		nm_ptr->switch2sram_cnt);
		}

		IPADBG("Out\n");
		}

		static void ipa3_read_pdn_table(void)
		@@ -1764,72 +1870,104 @@ static void ipa3_read_pdn_table(void)
		char *buff;
		size_t buff_size = 128;

		IPADBG("\n");
		IPADBG("In\n");

		if (ipa3_ctx->nat_mem.pdn_mem.base) {

		result = ipahal_nat_entry_size(
		IPAHAL_NAT_IPV4_PDN, &pdn_entry_size);

		result = ipahal_nat_entry_size(IPAHAL_NAT_IPV4_PDN, &pdn_entry_size);
		if (result) {
		IPAERR("Failed to retrieve size of PDN entry");
		return;
		goto bail;
		}

		buff = kzalloc(buff_size, GFP_KERNEL);
		if (!buff) {
		IPAERR("Out of memory\n");
		return;
		goto bail;
		}

		for (i = 0, pdn_entry = ipa3_ctx->nat_mem.pdn_mem.base;
		i < IPA_MAX_PDN_NUM;
		++i, pdn_entry += pdn_entry_size) {
		result = ipahal_nat_is_entry_zeroed(IPAHAL_NAT_IPV4_PDN,

		result = ipahal_nat_is_entry_zeroed(
		IPAHAL_NAT_IPV4_PDN,
		pdn_entry, &entry_zeroed);

		if (result) {
		IPAERR(
		"Failed to determine whether the PDN entry is definitely zero\n");
		goto bail;
		IPAERR("ipahal_nat_is_entry_zeroed() fail\n");
		goto free;
		}

		if (entry_zeroed)
		continue;

		result = ipahal_nat_is_entry_valid(IPAHAL_NAT_IPV4_PDN,
		result = ipahal_nat_is_entry_valid(
		IPAHAL_NAT_IPV4_PDN,
		pdn_entry, &entry_valid);

		if (result) {
		IPAERR(
		"Failed to determine whether the PDN entry is valid\n");
		goto bail;
		goto free;
		}

		ipahal_nat_stringify_entry(
		IPAHAL_NAT_IPV4_PDN,
		pdn_entry, buff, buff_size);

		if (entry_valid)
		pr_err("PDN %d:\n", i);
		pr_err("PDN %d: %s\n", i, buff);
		else
		pr_err("PDN %d - Invalid:\n", i);
		pr_err("PDN %d - Invalid: %s\n", i, buff);

		ipahal_nat_stringify_entry(IPAHAL_NAT_IPV4_PDN,
		pdn_entry, buff, buff_size);
		pr_err("%s\n", buff);
		memset(buff, 0, buff_size);
		}
		pr_err("\n");
		bail:
		free:
		kfree(buff);
		IPADBG("return\n");
		}
		bail:
		IPADBG("Out\n");
		}

		static ssize_t ipa3_read_nat4(struct file *file,
		char __user *ubuf, size_t count,
		static ssize_t ipa3_read_nat4(
		struct file *file,
		char __user *ubuf,
		size_t count,
		loff_t *ppos)
		{
		u32 rule_id = 0, num_entries = 0, index_num_entries = 0;
		struct ipa3_nat_ipv6ct_common_mem *dev = &ipa3_ctx->nat_mem.dev;
		struct ipa3_nat_mem nm_ptr = (struct ipa3_nat_mem ) dev;
		struct ipa3_nat_mem_loc_data *mld_ptr = NULL;

		u32 rule_id = 0;

		u32 *num_ents_ptr;
		u32 num_ddr_ents = 0;
		u32 num_sram_ents = 0;

		u32 *num_index_ents_ptr;
		u32 num_ddr_index_ents = 0;
		u32 num_sram_index_ents = 0;

		const char *type_ptr;

		bool any_table_active = (nm_ptr->ddr_in_use \|\| nm_ptr->sram_in_use);

		pr_err("IPA3 NAT stats\n");
		if (!ipa3_ctx->nat_mem.dev.is_dev_init) {

		if (!dev->is_dev_init) {
		pr_err("NAT hasn't been initialized or not supported\n");
		goto ret;
		}

		mutex_lock(&ipa3_ctx->nat_mem.dev.lock);
		mutex_lock(&dev->lock);

		if (!ipa3_ctx->nat_mem.dev.is_hw_init) {
		pr_err("NAT H/W hasn't been initialized\n");
		if (!dev->is_hw_init \|\| !any_table_active) {
		pr_err("NAT H/W and/or S/W not initialized\n");
		goto bail;
		}

		@@ -1840,68 +1978,114 @@ static ssize_t ipa3_read_nat4(struct file *file,
		&ipa3_ctx->nat_mem.public_ip_addr);
		}

		ipa3_start_read_memory_device(&ipa3_ctx->nat_mem.dev,
		IPAHAL_NAT_IPV4, &num_entries);
		ipa3_start_read_memory_device(
		dev,
		IPAHAL_NAT_IPV4,
		&num_ddr_ents,
		&num_sram_ents);

		if (nm_ptr->active_table == IPA_NAT_MEM_IN_DDR &&
		nm_ptr->ddr_in_use) {

		mld_ptr = &nm_ptr->mem_loc[IPA_NAT_MEM_IN_DDR];
		num_ents_ptr = &num_ddr_ents;
		num_index_ents_ptr = &num_ddr_index_ents;
		type_ptr = "DDR based table";
		}

		if (nm_ptr->active_table == IPA_NAT_MEM_IN_SRAM &&
		nm_ptr->sram_in_use) {

		mld_ptr = &nm_ptr->mem_loc[IPA_NAT_MEM_IN_SRAM];
		num_ents_ptr = &num_sram_ents;
		num_index_ents_ptr = &num_sram_index_ents;
		type_ptr = "SRAM based table";
		}

		if (mld_ptr) {
		/* Print Index tables */
		pr_err("ipaNatTable Index Table:\n");
		pr_err("(%s) ipaNatTable Index Table:\n", type_ptr);

		ipa3_read_table(
		ipa3_ctx->nat_mem.index_table_addr,
		ipa3_ctx->nat_mem.dev.table_entries + 1,
		&index_num_entries,
		mld_ptr->index_table_addr,
		mld_ptr->table_entries + 1,
		num_index_ents_ptr,
		&rule_id,
		IPAHAL_NAT_IPV4_INDEX);

		pr_err("ipaNatTable Expansion Index Table:\n");
		pr_err("(%s) ipaNatTable Expansion Index Table:\n", type_ptr);

		ipa3_read_table(
		ipa3_ctx->nat_mem.index_table_expansion_addr,
		ipa3_ctx->nat_mem.dev.expn_table_entries,
		&index_num_entries,
		mld_ptr->index_table_expansion_addr,
		mld_ptr->expn_table_entries,
		num_index_ents_ptr,
		&rule_id,
		IPAHAL_NAT_IPV4_INDEX);

		if (num_entries != index_num_entries)
		if (num_ents_ptr != num_index_ents_ptr)
		IPAERR(
		"The NAT table number of entries %d is different from index table number of entries %d\n",
		num_entries, index_num_entries);
		"(%s) Base Table vs Index Table entry count differs (%u vs %u)\n",
		type_ptr, num_ents_ptr, num_index_ents_ptr);
		}

		ipa3_finish_read_memory_device(&ipa3_ctx->nat_mem.dev, num_entries);
		ipa3_finish_read_memory_device(
		dev,
		num_ddr_ents,
		num_sram_ents);

		IPADBG("return\n");
		bail:
		mutex_unlock(&ipa3_ctx->nat_mem.dev.lock);
		mutex_unlock(&dev->lock);

		ret:
		IPADBG("Out\n");

		return 0;
		}

		static ssize_t ipa3_read_ipv6ct(struct file *file,
		char __user *ubuf, size_t count,
		static ssize_t ipa3_read_ipv6ct(
		struct file *file,
		char __user *ubuf,
		size_t count,
		loff_t *ppos)
		{
		u32 num_entries = 0;
		struct ipa3_nat_ipv6ct_common_mem *dev = &ipa3_ctx->ipv6ct_mem.dev;

		u32 num_ddr_ents, num_sram_ents;

		num_ddr_ents = num_sram_ents = 0;

		IPADBG("In\n");

		pr_err("\n");

		if (!ipa3_ctx->ipv6ct_mem.dev.is_dev_init) {
		if (!dev->is_dev_init) {
		pr_err("IPv6 Conntrack not initialized or not supported\n");
		return 0;
		goto bail;
		}

		mutex_lock(&ipa3_ctx->ipv6ct_mem.dev.lock);

		if (!ipa3_ctx->ipv6ct_mem.dev.is_hw_init) {
		if (!dev->is_hw_init) {
		pr_err("IPv6 connection tracking H/W hasn't been initialized\n");
		goto bail;
		}

		ipa3_start_read_memory_device(&ipa3_ctx->ipv6ct_mem.dev,
		IPAHAL_NAT_IPV6CT, &num_entries);
		ipa3_finish_read_memory_device(&ipa3_ctx->ipv6ct_mem.dev,
		num_entries);
		mutex_lock(&dev->lock);

		ipa3_start_read_memory_device(
		dev,
		IPAHAL_NAT_IPV6CT,
		&num_ddr_ents,
		&num_sram_ents);

		ipa3_finish_read_memory_device(
		dev,
		num_ddr_ents,
		num_sram_ents);

		mutex_unlock(&dev->lock);

		IPADBG("return\n");
		bail:
		mutex_unlock(&ipa3_ctx->ipv6ct_mem.dev.lock);
		IPADBG("Out\n");

		return 0;
		}

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

+112 −53

Original line number	Diff line number	Diff line
		@@ -140,12 +140,20 @@
		#define WLAN3_CONS_RX_EP 17
		#define WLAN4_CONS_RX_EP 18

		#define IPA_RAM_NAT_OFST 0
		#define IPA_RAM_NAT_SIZE 0
		#define IPA_RAM_NAT_OFST \
		IPA_MEM_PART(nat_tbl_ofst)
		#define IPA_RAM_NAT_SIZE \
		IPA_MEM_PART(nat_tbl_size)
		#define IPA_RAM_IPV6CT_OFST 0
		#define IPA_RAM_IPV6CT_SIZE 0
		#define IPA_MEM_CANARY_VAL 0xdeadbeef

		#define IS_IPV6CT_MEM_DEV(d) \
		(((void ) (d) == (void ) &ipa3_ctx->ipv6ct_mem))

		#define IS_NAT_MEM_DEV(d) \
		(((void ) (d) == (void ) &ipa3_ctx->nat_mem))

		#define IPA_STATS

		#ifdef IPA_STATS
		@@ -424,6 +432,9 @@ enum {
		#define IPA_IOC_MDFY_RT_RULE32 _IOWR(IPA_IOC_MAGIC, \
		IPA_IOCTL_MDFY_RT_RULE, \
		compat_uptr_t)
		#define IPA_IOC_GET_NAT_IN_SRAM_INFO32 _IOWR(IPA_IOC_MAGIC, \
		IPA_IOCTL_GET_NAT_IN_SRAM_INFO, \
		compat_uptr_t)
		#endif /* #ifdef CONFIG_COMPAT */

		#define IPA_TZ_UNLOCK_ATTRIBUTE 0x0C0311
		@@ -1152,75 +1163,131 @@ struct ipa3_nat_ipv6ct_tmp_mem {

		/**
		* struct ipa3_nat_ipv6ct_common_mem - IPA NAT/IPv6CT memory device
		* @name: the device name
		* @lock: memory mutex
		* @class: pointer to the struct class
		* @dev: the dev_t of the device
		* @cdev: cdev of the device
		* @dev_num: device number
		* @is_nat_mem: is the memory for v4 nat
		* @is_ipv6ct_mem: is the memory for v6 nat
		* @is_dev_init: flag indicating if device is initialized
		* @is_hw_init: flag indicating if the corresponding HW is initialized
		* @is_mapped: flag indicating if memory is mapped
		* @phys_mem_size: the physical size in the shared memory
		* @phys_mem_ofst: the offset in the shared memory
		* @table_alloc_size: size (bytes) of table
		* @vaddr: the virtual address in the system memory
		* @dma_handle: the system memory DMA handle
		* @phys_mem_size: the physical size in the shared memory
		* @smem_offset: the offset in the shared memory
		* @size: memory size
		* @is_mapped: flag indicating if memory is mapped
		* @is_sys_mem: flag indicating if memory is sys memory
		* @is_mem_allocated: flag indicating if the memory is allocated
		* @is_hw_init: flag indicating if the corresponding HW is initialized
		* @is_dev_init: flag indicating if device is initialized
		* @lock: memory mutex
		* @base_address: table virtual address
		* @base_table_addr: base table address
		* @expansion_table_addr: expansion table address
		* @table_entries: num of entries in the base table
		* @expn_table_entries: num of entries in the expansion table
		* @tmp_mem: temporary memory used to always provide HW with a legal memory
		* @name: the device name
		*/
		struct ipa3_nat_ipv6ct_common_mem {
		char name[IPA_DEV_NAME_MAX_LEN];
		struct mutex lock;
		struct class *class;
		struct device *dev;
		struct cdev cdev;
		dev_t dev_num;

		/* system memory */
		void *vaddr;
		dma_addr_t dma_handle;
		bool is_nat_mem;
		bool is_ipv6ct_mem;

		bool is_dev_init;
		bool is_hw_init;
		bool is_mapped;

		/* shared memory */
		u32 phys_mem_size;
		u32 smem_offset;
		u32 phys_mem_ofst;
		size_t table_alloc_size;

		size_t size;
		bool is_mapped;
		bool is_sys_mem;
		bool is_mem_allocated;
		bool is_hw_init;
		bool is_dev_init;
		struct mutex lock;
		void *vaddr;
		dma_addr_t dma_handle;
		void *base_address;
		char *base_table_addr;
		char *expansion_table_addr;
		u32 table_entries;
		u32 expn_table_entries;

		struct ipa3_nat_ipv6ct_tmp_mem *tmp_mem;
		char name[IPA_DEV_NAME_MAX_LEN];
		};

		/**
		* struct ipa3_nat_mem_loc_data - memory specific info per table memory type
		* @is_mapped: has the memory been mapped?
		* @io_vaddr: the virtual address in the sram memory
		* @vaddr: the virtual address in the system memory
		* @dma_handle: the system memory DMA handle
		* @phys_addr: physical sram memory location
		* @table_alloc_size: size (bytes) of table
		* @table_entries: number of entries in table
		* @expn_table_entries: number of entries in expansion table
		* @base_address: same as vaddr above
		* @base_table_addr: base table address
		* @expansion_table_addr: base table's expansion table address
		* @index_table_addr: index table address
		* @index_table_expansion_addr: index table's expansion table address
		*/
		struct ipa3_nat_mem_loc_data {
		bool is_mapped;

		void __iomem *io_vaddr;

		void *vaddr;
		dma_addr_t dma_handle;

		unsigned long phys_addr;

		size_t table_alloc_size;

		u32 table_entries;
		u32 expn_table_entries;

		void *base_address;

		char *base_table_addr;
		char *expansion_table_addr;

		char *index_table_addr;
		char *index_table_expansion_addr;
		};

		/**
		* struct ipa3_nat_mem - IPA NAT memory description
		* @dev: the memory device structure
		* @index_table_addr: index table address
		* @index_table_expansion_addr: index expansion table address
		* @public_ip_addr: ip address of nat table
		* @pdn_mem: pdn config table SW cache memory structure
		* @is_tmp_mem_allocated: indicate if tmp mem has been allocated
		* @last_alloc_loc: last memory type allocated
		* @active_table: which table memory type is currently active
		* @switch2ddr_cnt: how many times we've switched focust to ddr
		* @switch2sram_cnt: how many times we've switched focust to sram
		* @ddr_in_use: is there table in ddr
		* @sram_in_use: is there table in sram
		* @mem_loc: memory specific info per table memory type
		*/
		struct ipa3_nat_mem {
		struct ipa3_nat_ipv6ct_common_mem dev;
		char *index_table_addr;
		char *index_table_expansion_addr;
		struct ipa3_nat_ipv6ct_common_mem dev; /* this item must be first */

		u32 public_ip_addr;
		struct ipa_mem_buffer pdn_mem;

		bool is_tmp_mem_allocated;

		enum ipa3_nat_mem_in last_alloc_loc;

		enum ipa3_nat_mem_in active_table;
		u32 switch2ddr_cnt;
		u32 switch2sram_cnt;

		bool ddr_in_use;
		bool sram_in_use;

		struct ipa3_nat_mem_loc_data mem_loc[IPA_NAT_MEM_IN_MAX];
		};

		/**
		@@ -1228,7 +1295,7 @@ struct ipa3_nat_mem {
		* @dev: the memory device structure
		*/
		struct ipa3_ipv6ct_mem {
		struct ipa3_nat_ipv6ct_common_mem dev;
		struct ipa3_nat_ipv6ct_common_mem dev; /* this item must be first */
		};

		/**
		@@ -1667,8 +1734,7 @@ struct ipa3_pc_mbox_data {
		* struct ipa3_context - IPA context
		* @cdev: cdev context
		* @ep: list of all end points
		* @skip_ep_cfg_shadow: state to update filter table correctly across
		power-save
		* @skip_ep_cfg_shadow: state to update filter table correctly across power-save
		* @ep_flt_bitmap: End-points supporting filtering bitmap
		* @ep_flt_num: End-points supporting filtering number
		* @resume_on_connect: resume ep on ipa connect
		@@ -2066,10 +2132,6 @@ struct ipa3_plat_drv_res {
		* +-------------------------+
		* \| NAT TABLE (IPA4.5) \|
		* +-------------------------+
		* \| NAT IDX TABLE (IPA4.5) \|
		* +-------------------------+
		* \| NAT EXP TABLE (IPA4.5) \|
		* +-------------------------+
		* \| CANARY (IPA4.5) \|
		* +-------------------------+
		* \| CANARY (IPA4.5) \|
		@@ -2149,10 +2211,6 @@ struct ipa3_mem_partition {
		u32 apps_hdr_proc_ctx_size_ddr;
		u32 nat_tbl_ofst;
		u32 nat_tbl_size;
		u32 nat_index_tbl_ofst;
		u32 nat_index_tbl_size;
		u32 nat_exp_tbl_ofst;
		u32 nat_exp_tbl_size;
		u32 modem_comp_decomp_ofst;
		u32 modem_comp_decomp_size;
		u32 modem_ofst;
		@@ -2440,6 +2498,7 @@ int ipa3_del_nat_table(struct ipa_ioc_nat_ipv6ct_table_del *del);
		int ipa3_del_ipv6ct_table(struct ipa_ioc_nat_ipv6ct_table_del *del);

		int ipa3_nat_mdfy_pdn(struct ipa_ioc_nat_pdn_entry *mdfy_pdn);
		int ipa3_nat_get_sram_info(struct ipa_nat_in_sram_info *info_ptr);

		/*
		* Messaging

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

+1127 −407

File changed.

Preview size limit exceeded, changes collapsed.

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

+6 −34

Original line number	Diff line number	Diff line
		@@ -3110,11 +3110,7 @@ static struct ipa3_mem_partition ipa_4_5_mem_part = {
		.apps_hdr_proc_ctx_size = 0x200,
		.apps_hdr_proc_ctx_size_ddr = 0x0,
		.nat_tbl_ofst = 0x1800,
		.nat_tbl_size = 0x800,
		.nat_index_tbl_ofst = 0x2000,
		.nat_index_tbl_size = 0x100,
		.nat_exp_tbl_ofst = 0x2100,
		.nat_exp_tbl_size = 0x400,
		.nat_tbl_size = 0xd00,
		.stats_quota_ofst = 0x2510,
		.stats_quota_size = 0x78,
		.stats_tethering_ofst = 0x2588,
		@@ -3207,11 +3203,7 @@ static struct ipa3_mem_partition ipa_4_7_mem_part = {
		.apps_hdr_proc_ctx_size = 0x200,
		.apps_hdr_proc_ctx_size_ddr = 0x0,
		.nat_tbl_ofst = 0x17A0,
		.nat_tbl_size = 0x800,
		.nat_index_tbl_ofst = 0x1FA0,
		.nat_index_tbl_size = 0x100,
		.nat_exp_tbl_ofst = 0x20A0,
		.nat_exp_tbl_size = 0x400,
		.nat_tbl_size = 0xd00,
		.pdn_config_ofst = 0x24A8,
		.pdn_config_size = 0x50,
		.stats_quota_ofst = 0x2500,
		@@ -5833,31 +5825,11 @@ int ipa3_init_mem_partition(enum ipa_hw_type type)
		IPA_MEM_PART(nat_tbl_size));

		if (IPA_MEM_PART(nat_tbl_ofst) & 31) {
		IPAERR("NAT TBL OFST 0x%x is unaligned\n",
		IPAERR("NAT TBL OFST 0x%x is not aligned properly\n",
		IPA_MEM_PART(nat_tbl_ofst));
		return -ENODEV;
		}

		IPADBG("NAT INDEX TBL OFST 0x%x SIZE 0x%x\n",
		IPA_MEM_PART(nat_index_tbl_ofst),
		IPA_MEM_PART(nat_index_tbl_size));

		if (IPA_MEM_PART(nat_index_tbl_ofst) & 3) {
		IPAERR("NAT INDEX TBL OFST 0x%x is unaligned\n",
		IPA_MEM_PART(nat_index_tbl_ofst));
		return -ENODEV;
		}

		IPADBG("NAT EXP TBL OFST 0x%x SIZE 0x%x\n",
		IPA_MEM_PART(nat_exp_tbl_ofst),
		IPA_MEM_PART(nat_exp_tbl_size));

		if (IPA_MEM_PART(nat_exp_tbl_ofst) & 31) {
		IPAERR("NAT EXP TBL OFST 0x%x is unaligned\n",
		IPA_MEM_PART(nat_exp_tbl_ofst));
		return -ENODEV;
		}

		IPADBG("PDN CONFIG OFST 0x%x SIZE 0x%x\n",
		IPA_MEM_PART(pdn_config_ofst),
		IPA_MEM_PART(pdn_config_size));