Message-Id: <20181107003250.5832-13-elder@linaro.org>
Date:   Tue,  6 Nov 2018 18:32:50 -0600
From:   Alex Elder <elder@...aro.org>
To:     davem@...emloft.net, arnd@...db.de, bjorn.andersson@...aro.org,
        ilias.apalodimas@...aro.org
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        syadagir@...eaurora.org, mjavid@...eaurora.org, robh+dt@...nel.org,
        mark.rutland@....com
Subject: [RFC PATCH 12/12] soc: qcom: ipa: build and "ipa_i.h"

This last IPA code patch includes "Kconfig" for kernel configuration
and a "Makefile" to build the code.  The main configuration option
enabling the code to be built is "CONFIG_IPA".  A second one,
"CONFIG_IPA_ASSERT", is on by default if CONFIG_IPA is selected, but
can be disabled to cause ipa_assert() calls to not be included.

Finally, "ipa_i.h" is a sort of dumping ground header file, declaring
things used and needed throughout the code.  (I expect much of this can
be doled out into separate headers.)

Signed-off-by: Alex Elder <elder@...aro.org>
---
 drivers/net/ipa/Kconfig  |  30 ++
 drivers/net/ipa/Makefile |   7 +
 drivers/net/ipa/ipa_i.h  | 573 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 610 insertions(+)
 create mode 100644 drivers/net/ipa/Kconfig
 create mode 100644 drivers/net/ipa/Makefile
 create mode 100644 drivers/net/ipa/ipa_i.h

diff --git a/drivers/net/ipa/Kconfig b/drivers/net/ipa/Kconfig
new file mode 100644
index 000000000000..f8ea9363f532
--- /dev/null
+++ b/drivers/net/ipa/Kconfig
@@ -0,0 +1,30 @@
+config IPA
+	tristate "Qualcomm IPA support"
+	depends on NET
+	select QCOM_QMI_HELPERS
+	select QCOM_MDT_LOADER
+	default n
+	help
+	  Choose Y here to include support for the Qualcomm IP
+	  Accelerator (IPA), a hardware block present in some
+	  Qualcomm SoCs.  The IPA is a programmable protocol
+	  processor that is capable of generic hardware handling
+	  of IP packets, including routing, filtering, and NAT.
+	  Currently the IPA driver supports only basic transport
+	  of network traffic between the AP and modem, on the
+	  Qualcomm SDM845 SoC.
+
+	  If unsure, say N.
+
+config IPA_ASSERT
+	bool "Enable IPA assertions"
+	depends on IPA
+	default y
+	help
+	 Incorporate IPA assertion verification in the build.  This
+	 cause various design assumptions to be checked at runtime,
+	 generating a report (and a crash) if any assumed condition
+	 does not hold.  You may wish to disable this to avoid the
+	 overhead of checking.
+
+	 If unsure doubt, say "Y" here.
diff --git a/drivers/net/ipa/Makefile b/drivers/net/ipa/Makefile
new file mode 100644
index 000000000000..6b1de4ab2dad
--- /dev/null
+++ b/drivers/net/ipa/Makefile
@@ -0,0 +1,7 @@
+obj-$(CONFIG_IPA)	+=	ipa.o
+
+ipa-y			:=	ipa_main.o ipa_dp.o \
+				ipa_utils.o ipa_interrupts.o \
+				ipa_uc.o gsi.o rmnet_ipa.o \
+				ipa_qmi.o ipa_qmi_msg.o \
+				ipahal.o ipa_reg.o ipa_dma.o
diff --git a/drivers/net/ipa/ipa_i.h b/drivers/net/ipa/ipa_i.h
new file mode 100644
index 000000000000..efbb2cb7177f
--- /dev/null
+++ b/drivers/net/ipa/ipa_i.h
@@ -0,0 +1,573 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2018 Linaro Ltd.
+ */
+#ifndef _IPA_I_H_
+#define _IPA_I_H_
+
+#include <linux/types.h>
+#include <linux/sizes.h>
+#include <linux/bug.h>
+#include <linux/spinlock.h>
+#include <linux/mutex.h>
+#include <linux/device.h>
+#include <linux/workqueue.h>
+#include <linux/interconnect.h>
+#include <linux/pm_wakeup.h>
+#include <linux/skbuff.h>
+
+#include "ipa_dma.h"
+#include "ipa_reg.h"
+#include "gsi.h"
+
+#define IPA_MTU				1500
+
+#define IPA_EP_COUNT_MAX		31
+#define IPA_LAN_RX_HEADER_LENGTH	0
+#define IPA_DL_CHECKSUM_LENGTH		8
+#define IPA_GENERIC_RX_POOL_SZ		192
+
+#define IPA_GENERIC_AGGR_BYTE_LIMIT	(6 * SZ_1K)	/* bytes */
+#define IPA_GENERIC_AGGR_TIME_LIMIT	1		/* milliseconds */
+#define IPA_GENERIC_AGGR_PKT_LIMIT	0
+
+#define IPA_MAX_STATUS_STAT_NUM		30
+
+/* An explicitly bad endpoint identifier value */
+#define IPA_EP_ID_BAD			(~(u32)0)
+
+#define IPA_MEM_CANARY_VAL		0xdeadbeef
+
+#define IPA_GSI_CHANNEL_STOP_MAX_RETRY	10
+#define IPA_GSI_CHANNEL_STOP_PKT_SIZE	1
+
+/**
+ * DOC:
+ * The IPA has a block of shared memory, divided into regions used for
+ * specific purposes.  Values below define this layout (i.e., the
+ * sizes and locations of all these regions).  One or two "canary"
+ * values sit between some regions, as a check for erroneous writes
+ * outside a region.  There are combinations of and routing tables,
+ * covering IPv4 and IPv6, and for each of those, hashed and
+ * non-hashed variants.  About half of routing table entries are
+ * reserved for modem use.
+ */
+
+/* The maximum number of filter table entries (IPv4, IPv6; hashed and not) */
+#define IPA_MEM_FLT_COUNT	14
+
+/* The number of routing table entries (IPv4, IPv6; hashed and not) */
+#define IPA_MEM_RT_COUNT			15
+
+ /* Which routing table entries are for the modem */
+#define IPA_MEM_MODEM_RT_COUNT			8
+#define IPA_MEM_MODEM_RT_INDEX_MIN		0
+#define IPA_MEM_MODEM_RT_INDEX_MAX \
+               (IPA_MEM_MODEM_RT_INDEX_MIN + IPA_MEM_MODEM_RT_COUNT - 1)
+
+#define IPA_MEM_V4_FLT_HASH_OFST		0x288
+#define IPA_MEM_V4_FLT_NHASH_OFST		0x308
+#define IPA_MEM_V6_FLT_HASH_OFST		0x388
+#define IPA_MEM_V6_FLT_NHASH_OFST		0x408
+#define IPA_MEM_V4_RT_HASH_OFST			0x488
+#define IPA_MEM_V4_RT_NHASH_OFST		0x508
+#define IPA_MEM_V6_RT_HASH_OFST			0x588
+#define IPA_MEM_V6_RT_NHASH_OFST		0x608
+#define IPA_MEM_MODEM_HDR_OFST			0x688
+#define IPA_MEM_MODEM_HDR_SIZE			0x140
+#define IPA_MEM_APPS_HDR_OFST			0x7c8
+#define IPA_MEM_APPS_HDR_SIZE			0x0
+#define IPA_MEM_MODEM_HDR_PROC_CTX_OFST		0x7d0
+#define IPA_MEM_MODEM_HDR_PROC_CTX_SIZE		0x200
+#define IPA_MEM_APPS_HDR_PROC_CTX_OFST		0x9d0
+#define IPA_MEM_APPS_HDR_PROC_CTX_SIZE		0x200
+#define IPA_MEM_MODEM_OFST			0xbd8
+#define IPA_MEM_MODEM_SIZE			0x1024
+#define IPA_MEM_END_OFST			0x2000
+#define IPA_MEM_UC_EVENT_RING_OFST		0x1c00	/* v3.5 and later */
+
+#define ipa_debug(fmt, args...)	dev_dbg(ipa_ctx->dev, fmt, ## args)
+#define ipa_err(fmt, args...)	dev_err(ipa_ctx->dev, fmt, ## args)
+
+#define ipa_bug() \
+	do {								\
+		ipa_err("an unrecoverable error has occurred\n");	\
+		BUG();							\
+	} while (0)
+
+#define ipa_bug_on(condition)						\
+	do {								\
+		if (condition) {				\
+			ipa_err("ipa_bug_on(%s) failed!\n", #condition); \
+			ipa_bug();					\
+		}							\
+	} while (0)
+
+#ifdef CONFIG_IPA_ASSERT
+
+/* Communicate a condition assumed by the code.  This is intended as
+ * an informative statement about something that should always be true.
+ *
+ * N.B.:  Conditions asserted must not incorporate code with side-effects
+ *	  that are necessary for correct execution.  And an assertion
+ *	  failure should not be expected to force a crash (because all
+ *	  assertion code is optionally compiled out).
+ */
+#define ipa_assert(cond) \
+	do {								\
+		if (!(cond)) {				\
+			ipa_err("ipa_assert(%s) failed!\n", #cond);	\
+			ipa_bug();					\
+		}							\
+	} while (0)
+#else	/* !CONFIG_IPA_ASSERT */
+
+#define ipa_assert(expr)	((void)0)
+
+#endif	/* !CONFIG_IPA_ASSERT */
+
+enum ipa_ees {
+	IPA_EE_AP	= 0,
+	IPA_EE_Q6	= 1,
+	IPA_EE_UC	= 2,
+};
+
+/**
+ * enum ipa_client_type - names for the various IPA "clients"
+ *
+ * These are from the perspective of the clients, e.g. HSIC1_PROD
+ * means HSIC client is the producer and IPA is the consumer.
+ * PROD clients are always even, and CONS clients are always odd.
+ */
+enum ipa_client_type {
+	IPA_CLIENT_WLAN1_PROD                   = 10,
+	IPA_CLIENT_WLAN1_CONS                   = 11,
+
+	IPA_CLIENT_WLAN2_CONS                   = 13,
+
+	IPA_CLIENT_WLAN3_CONS                   = 15,
+
+	IPA_CLIENT_USB_PROD                     = 18,
+	IPA_CLIENT_USB_CONS                     = 19,
+
+	IPA_CLIENT_USB_DPL_CONS                 = 27,
+
+	IPA_CLIENT_APPS_LAN_PROD		= 32,
+	IPA_CLIENT_APPS_LAN_CONS		= 33,
+
+	IPA_CLIENT_APPS_WAN_PROD		= 34,
+	IPA_CLIENT_APPS_WAN_CONS		= 35,
+
+	IPA_CLIENT_APPS_CMD_PROD		= 36,
+
+	IPA_CLIENT_Q6_LAN_PROD			= 50,
+	IPA_CLIENT_Q6_LAN_CONS			= 51,
+
+	IPA_CLIENT_Q6_WAN_PROD			= 52,
+	IPA_CLIENT_Q6_WAN_CONS			= 53,
+
+	IPA_CLIENT_Q6_CMD_PROD			= 54,
+
+	IPA_CLIENT_TEST_PROD                    = 62,
+	IPA_CLIENT_TEST_CONS                    = 63,
+
+	IPA_CLIENT_TEST1_PROD                   = 64,
+	IPA_CLIENT_TEST1_CONS                   = 65,
+
+	IPA_CLIENT_TEST2_PROD                   = 66,
+	IPA_CLIENT_TEST2_CONS                   = 67,
+
+	IPA_CLIENT_TEST3_PROD                   = 68,
+	IPA_CLIENT_TEST3_CONS                   = 69,
+
+	IPA_CLIENT_TEST4_PROD                   = 70,
+	IPA_CLIENT_TEST4_CONS                   = 71,
+
+	IPA_CLIENT_DUMMY_CONS			= 73,
+
+	IPA_CLIENT_MAX,
+};
+
+static inline bool ipa_producer(enum ipa_client_type client)
+{
+	return !((u32)client & 1);	/* Even numbers are producers */
+}
+
+static inline bool ipa_consumer(enum ipa_client_type client)
+{
+	return !ipa_producer(client);
+}
+
+static inline bool ipa_modem_consumer(enum ipa_client_type client)
+{
+	return client == IPA_CLIENT_Q6_LAN_CONS ||
+		client == IPA_CLIENT_Q6_WAN_CONS;
+}
+
+static inline bool ipa_modem_producer(enum ipa_client_type client)
+{
+	return client == IPA_CLIENT_Q6_LAN_PROD ||
+		client == IPA_CLIENT_Q6_WAN_PROD ||
+		client == IPA_CLIENT_Q6_CMD_PROD;
+}
+
+static inline bool ipa_ap_consumer(enum ipa_client_type client)
+{
+	return client == IPA_CLIENT_APPS_LAN_CONS ||
+		client == IPA_CLIENT_APPS_WAN_CONS;
+}
+
+/**
+ * enum ipa_irq_type - IPA Interrupt Type
+ *
+ * Used to register handlers for IPA interrupts.
+ */
+enum ipa_irq_type {
+	IPA_INVALID_IRQ = 0,
+	IPA_UC_IRQ_0,
+	IPA_UC_IRQ_1,
+	IPA_TX_SUSPEND_IRQ,
+	IPA_IRQ_MAX
+};
+
+/**
+ * typedef ipa_irq_handler_t - irq handler/callback type
+ * @param ipa_irq_type		- interrupt type
+ * @param interrupt_data	- interrupt information data
+ *
+ * Callback function registered by ipa_add_interrupt_handler() to
+ * handle a specific interrupt type
+ */
+typedef void (*ipa_irq_handler_t)(enum ipa_irq_type interrupt,
+				  u32 interrupt_data);
+
+/**
+ * struct ipa_tx_suspend_irq_data - Interrupt data for IPA_TX_SUSPEND_IRQ
+ * @endpoints:	Bitmask of endpoints which cause IPA_TX_SUSPEND_IRQ interrupt
+ */
+struct ipa_tx_suspend_irq_data {
+	u32 endpoints;
+};
+
+/**
+ * enum ipa_dp_evt_type - Data path event type
+ */
+enum ipa_dp_evt_type {
+	IPA_RECEIVE,
+	IPA_WRITE_DONE,
+	IPA_CLIENT_START_POLL,
+	IPA_CLIENT_COMP_NAPI,
+};
+
+typedef void (*ipa_notify_cb)(void *priv, enum ipa_dp_evt_type evt,
+			      unsigned long data);
+
+/**
+ * struct ipa_ep_context - IPA end point context
+ * @allocated:	True when the endpoint has been allocated
+ * @client:	Client associated with the endpoint
+ * @channel_id:	EP's GSI channel
+ * @evt_ring_id: EP's GSI channel event ring
+ * @priv:	Pointer supplied when client_notify is called
+ *	  notified for new data avail
+ * @client_notify: Function called for event notification
+ * @napi_enabled: Endpoint uses NAPI
+ */
+struct ipa_ep_context {
+	bool allocated;
+	enum ipa_client_type client;
+	u32 channel_id;
+	u32 evt_ring_id;
+	bool bytes_xfered_valid;
+	u16 bytes_xfered;
+
+	struct ipa_reg_endp_init_hdr init_hdr;
+	struct ipa_reg_endp_init_hdr_ext hdr_ext;
+	struct ipa_reg_endp_init_mode init_mode;
+	struct ipa_reg_endp_init_aggr init_aggr;
+	struct ipa_reg_endp_init_cfg init_cfg;
+	struct ipa_reg_endp_init_seq init_seq;
+	struct ipa_reg_endp_init_deaggr init_deaggr;
+	struct ipa_reg_endp_init_hdr_metadata_mask metadata_mask;
+	struct ipa_reg_endp_status status;
+
+	void (*client_notify)(void *priv, enum ipa_dp_evt_type evt,
+			      unsigned long data);
+	void *priv;
+	bool napi_enabled;
+	struct ipa_sys_context *sys;
+};
+
+/**
+ * enum ipa_desc_type - IPA decriptor type
+ */
+enum ipa_desc_type {
+	IPA_DATA_DESC,
+	IPA_DATA_DESC_SKB,
+	IPA_DATA_DESC_SKB_PAGED,
+	IPA_IMM_CMD_DESC,
+};
+
+/**
+ * struct ipa_desc - IPA descriptor
+ * @type:	Type of data in the descriptor
+ * @len_opcode: Length of the payload, or opcode for immediate commands
+ * @payload:	Points to descriptor payload (e.g., socket buffer)
+ * @callback:	Completion callback
+ * @user1:	Pointer data supplied to callback
+ * @user2:	Integer data supplied with callback
+ */
+struct ipa_desc {
+	enum ipa_desc_type type;
+	u16 len_opcode;
+	void *payload;
+	void (*callback)(void *user1, int user2);
+	void *user1;
+	int user2;
+};
+
+/**
+ * enum ipahal_imm_cmd:	IPA immediate commands
+ *
+ * All immediate commands are issued using the APPS_CMD_PROD
+ * endpoint.  The numeric values here are the opcodes for IPA v3.5.1
+ * hardware
+ */
+enum ipahal_imm_cmd {
+	IPA_IMM_CMD_IP_V4_FILTER_INIT		= 3,
+	IPA_IMM_CMD_IP_V6_FILTER_INIT		= 4,
+	IPA_IMM_CMD_IP_V4_ROUTING_INIT		= 7,
+	IPA_IMM_CMD_IP_V6_ROUTING_INIT		= 8,
+	IPA_IMM_CMD_HDR_INIT_LOCAL		= 9,
+	IPA_IMM_CMD_DMA_TASK_32B_ADDR		= 17,
+	IPA_IMM_CMD_DMA_SHARED_MEM		= 19,
+};
+
+/**
+ * struct ipa_transport_pm - Transport power management data
+ * @dec_clients:	?
+ * @transport_pm_mutex:	Mutex to protect the transport_pm functionality.
+ */
+struct ipa_transport_pm {
+	atomic_t dec_clients;
+	struct mutex transport_pm_mutex;	/* XXX comment this */
+};
+
+struct ipa_smp2p_info {
+	struct qcom_smem_state *valid_state;
+	struct qcom_smem_state *enabled_state;
+	unsigned int valid_bit;
+	unsigned int enabled_bit;
+	unsigned int clock_query_irq;
+	unsigned int post_init_irq;
+	bool ipa_clk_on;
+	bool res_sent;
+};
+
+struct ipa_dma_task_info {
+	struct ipa_dma_mem mem;
+	void *payload;
+};
+
+/**
+ * struct ipa_context - IPA context
+ * @filter_bitmap:	End-points supporting filtering bitmap
+ * @ipa_irq:		IRQ number used for IPA
+ * @ipa_phys:		Physical address of IPA register memory
+ * @gsi:		Pointer to GSI structure
+ * @dev:		IPA device structure
+ * @ep:			Endpoint array
+ * @dp:			Data path information
+ * @smem_size:		Size of shared memory
+ * @smem_offset:	Offset of the usable area in shared memory
+ * @active_clients_mutex: Used when active clients count changes from/to 0
+ * @active_clients_count: Active client count
+ * @power_mgmt_wq:	Workqueue for power management
+ * @transport_pm:	Transport power management related information
+ * @cmd_prod_ep_id:	Endpoint for APPS_CMD_PROD
+ * @lan_cons_ep_id:	Endpoint for APPS_LAN_CONS
+ * @memory_path:	Path for memory interconnect
+ * @imem_path:		Path for internal memory interconnect
+ * @config_path:	Path for configuration interconnect
+ * @modem_clk_vote_valid: Whether proxy clock vote is held for modem
+ * @ep_count:		Number of endpoints available in hardware
+ * @uc_ctx:		Microcontroller context
+ * @wakeup_lock:	Lock protecting updates to wakeup_count
+ * @wakeup_count:	Count of times wakelock is acquired
+ * @wakeup:		Wakeup source
+ * @ipa_client_apps_wan_cons_agg_gro: APPS_WAN_CONS generic receive offload
+ * @smp2p_info:		Information related to SMP2P
+ * @dma_task_info:	Preallocated DMA task
+ */
+struct ipa_context {
+	u32 filter_bitmap;
+	u32 ipa_irq;
+	phys_addr_t ipa_phys;
+	struct gsi *gsi;
+	struct device *dev;
+
+	struct ipa_ep_context ep[IPA_EP_COUNT_MAX];
+	struct ipa_dp *dp;
+	u32 smem_size;
+	u16 smem_offset;
+	struct mutex active_clients_mutex;	/* count changes from/to 0 */
+	atomic_t active_clients_count;
+	struct workqueue_struct *power_mgmt_wq;
+	struct ipa_transport_pm transport_pm;
+	u32 cmd_prod_ep_id;
+	u32 lan_cons_ep_id;
+	struct icc_path *memory_path;
+	struct icc_path *imem_path;
+	struct icc_path *config_path;
+	struct clk *core_clock;
+	bool modem_clk_vote_valid;
+	u32 ep_count;
+
+	struct ipa_uc_ctx *uc_ctx;
+
+	spinlock_t wakeup_lock;		/* protects updates to wakeup_count */
+	u32 wakeup_count;
+	struct wakeup_source wakeup;
+
+	/* RMNET_IOCTL_INGRESS_FORMAT_AGG_DATA */
+	bool ipa_client_apps_wan_cons_agg_gro;
+	/* M-release support to know client endpoint */
+	struct ipa_smp2p_info smp2p_info;
+	struct ipa_dma_task_info dma_task_info;
+};
+
+extern struct ipa_context *ipa_ctx;
+
+int ipa_wwan_init(void);
+void ipa_wwan_cleanup(void);
+
+int ipa_stop_gsi_channel(u32 ep_id);
+
+void ipa_cfg_ep(u32 ep_id);
+
+int ipa_tx_dp(enum ipa_client_type dst, struct sk_buff *skb);
+
+bool ipa_endp_aggr_support(u32 ep_id);
+enum ipa_seq_type ipa_endp_seq_type(u32 ep_id);
+
+void ipa_endp_init_hdr_cons(u32 ep_id, u32 header_size,
+			    u32 metadata_offset, u32 length_offset);
+void ipa_endp_init_hdr_prod(u32 ep_id, u32 header_size,
+			    u32 metadata_offset, u32 length_offset);
+void ipa_endp_init_hdr_ext_cons(u32 ep_id, u32 pad_align,
+				bool pad_included);
+void ipa_endp_init_hdr_ext_prod(u32 ep_id, u32 pad_align);
+void ipa_endp_init_mode_cons(u32 ep_id);
+void ipa_endp_init_mode_prod(u32 ep_id, enum ipa_mode mode,
+			     enum ipa_client_type dst_client);
+void ipa_endp_init_aggr_cons(u32 ep_id, u32 size, u32 count,
+			     bool close_on_eof);
+void ipa_endp_init_aggr_prod(u32 ep_id, enum ipa_aggr_en aggr_en,
+			     enum ipa_aggr_type aggr_type);
+void ipa_endp_init_cfg_cons(u32 ep_id,
+			    enum ipa_cs_offload_en offload_type);
+void ipa_endp_init_cfg_prod(u32 ep_id, enum ipa_cs_offload_en offload_type,
+			    u32 metadata_offset);
+void ipa_endp_init_seq_cons(u32 ep_id);
+void ipa_endp_init_seq_prod(u32 ep_id);
+void ipa_endp_init_deaggr_cons(u32 ep_id);
+void ipa_endp_init_deaggr_prod(u32 ep_id);
+void ipa_endp_init_hdr_metadata_mask_cons(u32 ep_id, u32 mask);
+void ipa_endp_init_hdr_metadata_mask_prod(u32 ep_id);
+void ipa_endp_status_cons(u32 ep_id, bool enable);
+void ipa_endp_status_prod(u32 ep_id, bool enable,
+			  enum ipa_client_type client);
+int ipa_ep_alloc(enum ipa_client_type client);
+void ipa_ep_free(u32 ep_id);
+
+void ipa_no_intr_init(u32 prod_ep_id);
+
+int ipa_ep_setup(u32 ep_id, u32 channel_count, u32 evt_ring_mult,
+		 u32 rx_buffer_size,
+		 void (*client_notify)(void *priv, enum ipa_dp_evt_type type,
+				       unsigned long data),
+		 void *priv);
+
+void ipa_ep_teardown(u32 ep_id);
+
+void ipa_rx_switch_to_poll_mode(struct ipa_sys_context *sys);
+
+void ipa_add_interrupt_handler(enum ipa_irq_type interrupt,
+			       ipa_irq_handler_t handler);
+
+void ipa_remove_interrupt_handler(enum ipa_irq_type interrupt);
+
+void ipa_proxy_clk_vote(void);
+void ipa_proxy_clk_unvote(void);
+
+u32 ipa_filter_bitmap_init(void);
+
+bool ipa_is_modem_ep(u32 ep_id);
+
+u32 ipa_client_ep_id(enum ipa_client_type client);
+u32 ipa_client_channel_id(enum ipa_client_type client);
+u32 ipa_client_tlv_count(enum ipa_client_type client);
+
+void ipa_init_hw(void);
+
+int ipa_interconnect_init(struct device *dev);
+void ipa_interconnect_exit(void);
+
+int ipa_interconnect_enable(void);
+int ipa_interconnect_disable(void);
+
+int ipa_send_cmd_timeout(struct ipa_desc *desc, u32 timeout);
+static inline int ipa_send_cmd(struct ipa_desc *desc)
+{
+	return ipa_send_cmd_timeout(desc, 0);
+}
+
+void ipa_client_add(void);
+bool ipa_client_add_additional(void);
+void ipa_client_remove(void);
+
+u32 ipa_aggr_byte_limit_buf_size(u32 byte_limit);
+
+void ipa_cfg_default_route(enum ipa_client_type client);
+
+int ipa_interrupts_init(void);
+
+void ipa_suspend_active_aggr_wa(u32 ep_id);
+void ipa_lan_rx_cb(void *priv, enum ipa_dp_evt_type evt, unsigned long data);
+
+void ipa_sram_settings_read(void);
+
+int ipa_modem_smem_init(void);
+
+struct ipa_uc_ctx *ipa_uc_init(phys_addr_t phys_addr);
+bool ipa_uc_loaded(void);
+void ipa_uc_panic_notifier(void);
+
+u32 ipa_get_ep_count(void);
+int ipa_ap_suspend(struct device *dev);
+int ipa_ap_resume(struct device *dev);
+void ipa_set_resource_groups_min_max_limits(void);
+void ipa_ep_suspend_all(void);
+void ipa_ep_resume_all(void);
+void ipa_inc_acquire_wakelock(void);
+void ipa_dec_release_wakelock(void);
+int ipa_rx_poll(u32 ep_id, int budget);
+void ipa_reset_freeze_vote(void);
+void ipa_enable_dcd(void);
+
+int ipa_gsi_dma_task_alloc(void);
+void ipa_gsi_dma_task_free(void);
+
+void ipa_set_flt_tuple_mask(u32 ep_id);
+void ipa_set_rt_tuple_mask(int tbl_idx);
+
+void ipa_gsi_irq_rx_notify_cb(void *chan_data, u16 count);
+void ipa_gsi_irq_tx_notify_cb(void *xfer_data);
+
+bool ipa_ep_polling(struct ipa_ep_context *ep);
+
+struct ipa_dp *ipa_dp_init(void);
+void ipa_dp_exit(struct ipa_dp *dp);
+
+#endif /* _IPA_I_H_ */
-- 
2.17.1

Powered by blists - more mailing lists