^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (C) 2019-2020 Linaro Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #ifndef _IPA_ENDPOINT_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #define _IPA_ENDPOINT_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/if_ether.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "gsi.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "ipa_reg.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) struct net_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) struct sk_buff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) struct ipa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct ipa_gsi_endpoint_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) /* Non-zero granularity of counter used to implement aggregation timeout */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define IPA_AGGR_GRANULARITY 500 /* microseconds */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define IPA_MTU ETH_DATA_LEN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) enum ipa_endpoint_name {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) IPA_ENDPOINT_AP_MODEM_TX = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) IPA_ENDPOINT_MODEM_LAN_TX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) IPA_ENDPOINT_MODEM_COMMAND_TX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) IPA_ENDPOINT_AP_COMMAND_TX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) IPA_ENDPOINT_MODEM_AP_TX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) IPA_ENDPOINT_AP_LAN_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) IPA_ENDPOINT_AP_MODEM_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) IPA_ENDPOINT_MODEM_AP_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) IPA_ENDPOINT_MODEM_LAN_RX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) IPA_ENDPOINT_COUNT, /* Number of names (not an index) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define IPA_ENDPOINT_MAX 32 /* Max supported by driver */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) * enum ipa_replenish_flag: RX buffer replenish flags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * @IPA_REPLENISH_ENABLED: Whether receive buffer replenishing is enabled
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * @IPA_REPLENISH_ACTIVE: Whether replenishing is underway
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * @IPA_REPLENISH_COUNT: Number of defined replenish flags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) enum ipa_replenish_flag {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) IPA_REPLENISH_ENABLED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) IPA_REPLENISH_ACTIVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) IPA_REPLENISH_COUNT, /* Number of flags (must be last) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * struct ipa_endpoint - IPA endpoint information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * @channel_id: EP's GSI channel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * @evt_ring_id: EP's GSI channel event ring
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct ipa_endpoint {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct ipa *ipa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) enum ipa_seq_type seq_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) enum gsi_ee_id ee_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) u32 channel_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) u32 endpoint_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) bool toward_ipa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) const struct ipa_endpoint_config_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) u32 trans_tre_max; /* maximum descriptors per transaction */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) u32 evt_ring_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) /* Net device this endpoint is associated with, if any */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct net_device *netdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* Receive buffer replenishing for RX endpoints */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) DECLARE_BITMAP(replenish_flags, IPA_REPLENISH_COUNT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) u32 replenish_ready;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) atomic_t replenish_saved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) atomic_t replenish_backlog;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct delayed_work replenish_work; /* global wq */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) void ipa_endpoint_modem_hol_block_clear_all(struct ipa *ipa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) void ipa_endpoint_modem_pause_all(struct ipa *ipa, bool enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) int ipa_endpoint_modem_exception_reset_all(struct ipa *ipa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) int ipa_endpoint_skb_tx(struct ipa_endpoint *endpoint, struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) void ipa_endpoint_exit_one(struct ipa_endpoint *endpoint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) int ipa_endpoint_enable_one(struct ipa_endpoint *endpoint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) void ipa_endpoint_disable_one(struct ipa_endpoint *endpoint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) void ipa_endpoint_suspend_one(struct ipa_endpoint *endpoint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) void ipa_endpoint_resume_one(struct ipa_endpoint *endpoint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) void ipa_endpoint_suspend(struct ipa *ipa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) void ipa_endpoint_resume(struct ipa *ipa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) void ipa_endpoint_setup(struct ipa *ipa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) void ipa_endpoint_teardown(struct ipa *ipa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) int ipa_endpoint_config(struct ipa *ipa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) void ipa_endpoint_deconfig(struct ipa *ipa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) void ipa_endpoint_default_route_set(struct ipa *ipa, u32 endpoint_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) void ipa_endpoint_default_route_clear(struct ipa *ipa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) u32 ipa_endpoint_init(struct ipa *ipa, u32 count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) const struct ipa_gsi_endpoint_data *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) void ipa_endpoint_exit(struct ipa *ipa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) void ipa_endpoint_trans_complete(struct ipa_endpoint *ipa,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct gsi_trans *trans);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) void ipa_endpoint_trans_release(struct ipa_endpoint *ipa,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) struct gsi_trans *trans);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #endif /* _IPA_ENDPOINT_H_ */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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