131 lines
3.9 KiB
C
131 lines
3.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
|
|
/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
|
|
* Copyright (C) 2019-2020 Linaro Ltd.
|
|
*/
|
|
#ifndef _IPA_ENDPOINT_H_
|
|
#define _IPA_ENDPOINT_H_
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/if_ether.h>
|
|
|
|
#include "gsi.h"
|
|
#include "ipa_reg.h"
|
|
|
|
struct net_device;
|
|
struct sk_buff;
|
|
|
|
struct ipa;
|
|
struct ipa_gsi_endpoint_data;
|
|
|
|
/* Non-zero granularity of counter used to implement aggregation timeout */
|
|
#define IPA_AGGR_GRANULARITY 500 /* microseconds */
|
|
|
|
#define IPA_MTU ETH_DATA_LEN
|
|
|
|
enum ipa_endpoint_name {
|
|
IPA_ENDPOINT_AP_COMMAND_TX,
|
|
IPA_ENDPOINT_AP_LAN_RX,
|
|
IPA_ENDPOINT_AP_MODEM_TX,
|
|
IPA_ENDPOINT_AP_MODEM_RX,
|
|
IPA_ENDPOINT_MODEM_COMMAND_TX,
|
|
IPA_ENDPOINT_MODEM_LAN_TX,
|
|
IPA_ENDPOINT_MODEM_LAN_RX,
|
|
IPA_ENDPOINT_MODEM_AP_TX,
|
|
IPA_ENDPOINT_MODEM_AP_RX,
|
|
IPA_ENDPOINT_MODEM_DL_NLO_TX,
|
|
IPA_ENDPOINT_COUNT, /* Number of names (not an index) */
|
|
};
|
|
|
|
#define IPA_ENDPOINT_MAX 32 /* Max supported by driver */
|
|
|
|
/**
|
|
* enum ipa_replenish_flag: RX buffer replenish flags
|
|
*
|
|
* @IPA_REPLENISH_ENABLED: Whether receive buffer replenishing is enabled
|
|
* @IPA_REPLENISH_ACTIVE: Whether replenishing is underway
|
|
* @IPA_REPLENISH_COUNT: Number of defined replenish flags
|
|
*/
|
|
enum ipa_replenish_flag {
|
|
IPA_REPLENISH_ENABLED,
|
|
IPA_REPLENISH_ACTIVE,
|
|
IPA_REPLENISH_COUNT, /* Number of flags (must be last) */
|
|
};
|
|
|
|
/**
|
|
* struct ipa_endpoint - IPA endpoint information
|
|
* @ipa: IPA pointer
|
|
* @ee_id: Execution environmnent endpoint is associated with
|
|
* @channel_id: GSI channel used by the endpoint
|
|
* @endpoint_id: IPA endpoint number
|
|
* @toward_ipa: Endpoint direction (true = TX, false = RX)
|
|
* @data: Endpoint configuration data
|
|
* @trans_tre_max: Maximum number of TRE descriptors per transaction
|
|
* @evt_ring_id: GSI event ring used by the endpoint
|
|
* @netdev: Network device pointer, if endpoint uses one
|
|
* @replenish_flags: Replenishing state flags
|
|
* @replenish_ready: Number of replenish transactions without doorbell
|
|
* @replenish_saved: Replenish requests held while disabled
|
|
* @replenish_backlog: Number of buffers needed to fill hardware queue
|
|
* @replenish_work: Work item used for repeated replenish failures
|
|
*/
|
|
struct ipa_endpoint {
|
|
struct ipa *ipa;
|
|
enum gsi_ee_id ee_id;
|
|
u32 channel_id;
|
|
u32 endpoint_id;
|
|
bool toward_ipa;
|
|
const struct ipa_endpoint_config_data *data;
|
|
|
|
u32 trans_tre_max;
|
|
u32 evt_ring_id;
|
|
|
|
/* Net device this endpoint is associated with, if any */
|
|
struct net_device *netdev;
|
|
|
|
/* Receive buffer replenishing for RX endpoints */
|
|
DECLARE_BITMAP(replenish_flags, IPA_REPLENISH_COUNT);
|
|
u32 replenish_ready;
|
|
atomic_t replenish_saved;
|
|
atomic_t replenish_backlog;
|
|
struct delayed_work replenish_work; /* global wq */
|
|
};
|
|
|
|
void ipa_endpoint_modem_hol_block_clear_all(struct ipa *ipa);
|
|
|
|
void ipa_endpoint_modem_pause_all(struct ipa *ipa, bool enable);
|
|
|
|
int ipa_endpoint_modem_exception_reset_all(struct ipa *ipa);
|
|
|
|
int ipa_endpoint_skb_tx(struct ipa_endpoint *endpoint, struct sk_buff *skb);
|
|
|
|
int ipa_endpoint_enable_one(struct ipa_endpoint *endpoint);
|
|
void ipa_endpoint_disable_one(struct ipa_endpoint *endpoint);
|
|
|
|
void ipa_endpoint_suspend_one(struct ipa_endpoint *endpoint);
|
|
void ipa_endpoint_resume_one(struct ipa_endpoint *endpoint);
|
|
|
|
void ipa_endpoint_suspend(struct ipa *ipa);
|
|
void ipa_endpoint_resume(struct ipa *ipa);
|
|
|
|
void ipa_endpoint_setup(struct ipa *ipa);
|
|
void ipa_endpoint_teardown(struct ipa *ipa);
|
|
|
|
int ipa_endpoint_config(struct ipa *ipa);
|
|
void ipa_endpoint_deconfig(struct ipa *ipa);
|
|
|
|
void ipa_endpoint_default_route_set(struct ipa *ipa, u32 endpoint_id);
|
|
void ipa_endpoint_default_route_clear(struct ipa *ipa);
|
|
|
|
u32 ipa_endpoint_init(struct ipa *ipa, u32 count,
|
|
const struct ipa_gsi_endpoint_data *data);
|
|
void ipa_endpoint_exit(struct ipa *ipa);
|
|
|
|
void ipa_endpoint_trans_complete(struct ipa_endpoint *ipa,
|
|
struct gsi_trans *trans);
|
|
void ipa_endpoint_trans_release(struct ipa_endpoint *ipa,
|
|
struct gsi_trans *trans);
|
|
|
|
#endif /* _IPA_ENDPOINT_H_ */
|