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685a6bf8 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
d021c344 AK |
2 | /* |
3 | * VMware vSockets Driver | |
4 | * | |
5 | * Copyright (C) 2009-2013 VMware, Inc. All rights reserved. | |
d021c344 AK |
6 | */ |
7 | ||
8 | #ifndef __VMCI_TRANSPORT_NOTIFY_H__ | |
9 | #define __VMCI_TRANSPORT_NOTIFY_H__ | |
10 | ||
11 | #include <linux/types.h> | |
12 | #include <linux/vmw_vmci_defs.h> | |
13 | #include <linux/vmw_vmci_api.h> | |
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14 | |
15 | #include "vmci_transport.h" | |
16 | ||
17 | /* Comment this out to compare with old protocol. */ | |
18 | #define VSOCK_OPTIMIZATION_WAITING_NOTIFY 1 | |
19 | #if defined(VSOCK_OPTIMIZATION_WAITING_NOTIFY) | |
20 | /* Comment this out to remove flow control for "new" protocol */ | |
21 | #define VSOCK_OPTIMIZATION_FLOW_CONTROL 1 | |
22 | #endif | |
23 | ||
24 | #define VMCI_TRANSPORT_MAX_DGRAM_RESENDS 10 | |
25 | ||
26 | struct vmci_transport_recv_notify_data { | |
27 | u64 consume_head; | |
28 | u64 produce_tail; | |
29 | bool notify_on_block; | |
30 | }; | |
31 | ||
32 | struct vmci_transport_send_notify_data { | |
33 | u64 consume_head; | |
34 | u64 produce_tail; | |
35 | }; | |
36 | ||
37 | /* Socket notification callbacks. */ | |
38 | struct vmci_transport_notify_ops { | |
39 | void (*socket_init) (struct sock *sk); | |
40 | void (*socket_destruct) (struct vsock_sock *vsk); | |
41 | int (*poll_in) (struct sock *sk, size_t target, | |
42 | bool *data_ready_now); | |
43 | int (*poll_out) (struct sock *sk, size_t target, | |
44 | bool *space_avail_now); | |
45 | void (*handle_notify_pkt) (struct sock *sk, | |
46 | struct vmci_transport_packet *pkt, | |
47 | bool bottom_half, struct sockaddr_vm *dst, | |
48 | struct sockaddr_vm *src, | |
49 | bool *pkt_processed); | |
50 | int (*recv_init) (struct sock *sk, size_t target, | |
51 | struct vmci_transport_recv_notify_data *data); | |
52 | int (*recv_pre_block) (struct sock *sk, size_t target, | |
53 | struct vmci_transport_recv_notify_data *data); | |
54 | int (*recv_pre_dequeue) (struct sock *sk, size_t target, | |
55 | struct vmci_transport_recv_notify_data *data); | |
56 | int (*recv_post_dequeue) (struct sock *sk, size_t target, | |
57 | ssize_t copied, bool data_read, | |
58 | struct vmci_transport_recv_notify_data *data); | |
59 | int (*send_init) (struct sock *sk, | |
60 | struct vmci_transport_send_notify_data *data); | |
61 | int (*send_pre_block) (struct sock *sk, | |
62 | struct vmci_transport_send_notify_data *data); | |
63 | int (*send_pre_enqueue) (struct sock *sk, | |
64 | struct vmci_transport_send_notify_data *data); | |
65 | int (*send_post_enqueue) (struct sock *sk, ssize_t written, | |
66 | struct vmci_transport_send_notify_data *data); | |
67 | void (*process_request) (struct sock *sk); | |
68 | void (*process_negotiate) (struct sock *sk); | |
69 | }; | |
70 | ||
3b22dae3 JL |
71 | extern const struct vmci_transport_notify_ops vmci_transport_notify_pkt_ops; |
72 | extern const | |
73 | struct vmci_transport_notify_ops vmci_transport_notify_pkt_q_state_ops; | |
d021c344 AK |
74 | |
75 | #endif /* __VMCI_TRANSPORT_NOTIFY_H__ */ |