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Diffstat (limited to 'drivers/net/ipa/ipa_endpoint.h')
| -rw-r--r-- | drivers/net/ipa/ipa_endpoint.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/net/ipa/ipa_endpoint.h b/drivers/net/ipa/ipa_endpoint.h new file mode 100644 index 000000000000..4b336a1f759d --- /dev/null +++ b/drivers/net/ipa/ipa_endpoint.h @@ -0,0 +1,110 @@ +/* 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_MODEM_TX = 0, + IPA_ENDPOINT_MODEM_LAN_TX, + IPA_ENDPOINT_MODEM_COMMAND_TX, + IPA_ENDPOINT_AP_COMMAND_TX, + IPA_ENDPOINT_MODEM_AP_TX, + IPA_ENDPOINT_AP_LAN_RX, + IPA_ENDPOINT_AP_MODEM_RX, + IPA_ENDPOINT_MODEM_AP_RX, + IPA_ENDPOINT_MODEM_LAN_RX, + IPA_ENDPOINT_COUNT, /* Number of names (not an index) */ +}; + +#define IPA_ENDPOINT_MAX 32 /* Max supported by driver */ + +/** + * struct ipa_endpoint - IPA endpoint information + * @client: Client associated with the endpoint + * @channel_id: EP's GSI channel + * @evt_ring_id: EP's GSI channel event ring + */ +struct ipa_endpoint { + struct ipa *ipa; + enum ipa_seq_type seq_type; + 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; /* maximum descriptors per transaction */ + u32 evt_ring_id; + + /* Net device this endpoint is associated with, if any */ + struct net_device *netdev; + + /* Receive buffer replenishing for RX endpoints */ + bool replenish_enabled; + 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_stop(struct ipa_endpoint *endpoint); + +void ipa_endpoint_exit_one(struct ipa_endpoint *endpoint); + +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_ */ |