1 /* SPDX-License-Identifier: GPL-2.0 */
3 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
4 * Copyright (C) 2019-2020 Linaro Ltd.
6 #ifndef _IPA_ENDPOINT_H_
7 #define _IPA_ENDPOINT_H_
9 #include <linux/types.h>
10 #include <linux/workqueue.h>
11 #include <linux/if_ether.h>
20 struct ipa_gsi_endpoint_data;
22 /* Non-zero granularity of counter used to implement aggregation timeout */
23 #define IPA_AGGR_GRANULARITY 500 /* microseconds */
25 #define IPA_MTU ETH_DATA_LEN
27 enum ipa_endpoint_name {
28 IPA_ENDPOINT_AP_MODEM_TX,
29 IPA_ENDPOINT_MODEM_LAN_TX,
30 IPA_ENDPOINT_MODEM_COMMAND_TX,
31 IPA_ENDPOINT_AP_COMMAND_TX,
32 IPA_ENDPOINT_MODEM_AP_TX,
33 IPA_ENDPOINT_AP_LAN_RX,
34 IPA_ENDPOINT_AP_MODEM_RX,
35 IPA_ENDPOINT_MODEM_AP_RX,
36 IPA_ENDPOINT_MODEM_LAN_RX,
37 IPA_ENDPOINT_COUNT, /* Number of names (not an index) */
40 #define IPA_ENDPOINT_MAX 32 /* Max supported by driver */
43 * struct ipa_endpoint - IPA endpoint information
44 * @channel_id: EP's GSI channel
45 * @evt_ring_id: EP's GSI channel event ring
49 enum ipa_seq_type seq_type;
54 const struct ipa_endpoint_config_data *data;
56 u32 trans_tre_max; /* maximum descriptors per transaction */
59 /* Net device this endpoint is associated with, if any */
60 struct net_device *netdev;
62 /* Receive buffer replenishing for RX endpoints */
63 bool replenish_enabled;
65 atomic_t replenish_saved;
66 atomic_t replenish_backlog;
67 struct delayed_work replenish_work; /* global wq */
70 void ipa_endpoint_modem_hol_block_clear_all(struct ipa *ipa);
72 void ipa_endpoint_modem_pause_all(struct ipa *ipa, bool enable);
74 int ipa_endpoint_modem_exception_reset_all(struct ipa *ipa);
76 int ipa_endpoint_skb_tx(struct ipa_endpoint *endpoint, struct sk_buff *skb);
78 void ipa_endpoint_exit_one(struct ipa_endpoint *endpoint);
80 int ipa_endpoint_enable_one(struct ipa_endpoint *endpoint);
81 void ipa_endpoint_disable_one(struct ipa_endpoint *endpoint);
83 void ipa_endpoint_suspend_one(struct ipa_endpoint *endpoint);
84 void ipa_endpoint_resume_one(struct ipa_endpoint *endpoint);
86 void ipa_endpoint_suspend(struct ipa *ipa);
87 void ipa_endpoint_resume(struct ipa *ipa);
89 void ipa_endpoint_setup(struct ipa *ipa);
90 void ipa_endpoint_teardown(struct ipa *ipa);
92 int ipa_endpoint_config(struct ipa *ipa);
93 void ipa_endpoint_deconfig(struct ipa *ipa);
95 void ipa_endpoint_default_route_set(struct ipa *ipa, u32 endpoint_id);
96 void ipa_endpoint_default_route_clear(struct ipa *ipa);
98 u32 ipa_endpoint_init(struct ipa *ipa, u32 count,
99 const struct ipa_gsi_endpoint_data *data);
100 void ipa_endpoint_exit(struct ipa *ipa);
102 void ipa_endpoint_trans_complete(struct ipa_endpoint *ipa,
103 struct gsi_trans *trans);
104 void ipa_endpoint_trans_release(struct ipa_endpoint *ipa,
105 struct gsi_trans *trans);
107 #endif /* _IPA_ENDPOINT_H_ */