1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * VMware vSockets Driver |
4 | * |
5 | * Copyright (C) 2009-2013 VMware, Inc. All rights reserved. |
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> |
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 | |
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; |
74 | |
75 | #endif /* __VMCI_TRANSPORT_NOTIFY_H__ */ |
76 | |