1685a6bf8SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2d021c344SAndy King /* 3d021c344SAndy King * VMware vSockets Driver 4d021c344SAndy King * 5d021c344SAndy King * Copyright (C) 2009-2013 VMware, Inc. All rights reserved. 6d021c344SAndy King */ 7d021c344SAndy King 8d021c344SAndy King #ifndef __VMCI_TRANSPORT_NOTIFY_H__ 9d021c344SAndy King #define __VMCI_TRANSPORT_NOTIFY_H__ 10d021c344SAndy King 11d021c344SAndy King #include <linux/types.h> 12d021c344SAndy King #include <linux/vmw_vmci_defs.h> 13d021c344SAndy King #include <linux/vmw_vmci_api.h> 14d021c344SAndy King 15d021c344SAndy King #include "vmci_transport.h" 16d021c344SAndy King 17d021c344SAndy King /* Comment this out to compare with old protocol. */ 18d021c344SAndy King #define VSOCK_OPTIMIZATION_WAITING_NOTIFY 1 19d021c344SAndy King #if defined(VSOCK_OPTIMIZATION_WAITING_NOTIFY) 20d021c344SAndy King /* Comment this out to remove flow control for "new" protocol */ 21d021c344SAndy King #define VSOCK_OPTIMIZATION_FLOW_CONTROL 1 22d021c344SAndy King #endif 23d021c344SAndy King 24d021c344SAndy King #define VMCI_TRANSPORT_MAX_DGRAM_RESENDS 10 25d021c344SAndy King 26d021c344SAndy King struct vmci_transport_recv_notify_data { 27d021c344SAndy King u64 consume_head; 28d021c344SAndy King u64 produce_tail; 29d021c344SAndy King bool notify_on_block; 30d021c344SAndy King }; 31d021c344SAndy King 32d021c344SAndy King struct vmci_transport_send_notify_data { 33d021c344SAndy King u64 consume_head; 34d021c344SAndy King u64 produce_tail; 35d021c344SAndy King }; 36d021c344SAndy King 37d021c344SAndy King /* Socket notification callbacks. */ 38d021c344SAndy King struct vmci_transport_notify_ops { 39d021c344SAndy King void (*socket_init) (struct sock *sk); 40d021c344SAndy King void (*socket_destruct) (struct vsock_sock *vsk); 41d021c344SAndy King int (*poll_in) (struct sock *sk, size_t target, 42d021c344SAndy King bool *data_ready_now); 43d021c344SAndy King int (*poll_out) (struct sock *sk, size_t target, 44d021c344SAndy King bool *space_avail_now); 45d021c344SAndy King void (*handle_notify_pkt) (struct sock *sk, 46d021c344SAndy King struct vmci_transport_packet *pkt, 47d021c344SAndy King bool bottom_half, struct sockaddr_vm *dst, 48d021c344SAndy King struct sockaddr_vm *src, 49d021c344SAndy King bool *pkt_processed); 50d021c344SAndy King int (*recv_init) (struct sock *sk, size_t target, 51d021c344SAndy King struct vmci_transport_recv_notify_data *data); 52d021c344SAndy King int (*recv_pre_block) (struct sock *sk, size_t target, 53d021c344SAndy King struct vmci_transport_recv_notify_data *data); 54d021c344SAndy King int (*recv_pre_dequeue) (struct sock *sk, size_t target, 55d021c344SAndy King struct vmci_transport_recv_notify_data *data); 56d021c344SAndy King int (*recv_post_dequeue) (struct sock *sk, size_t target, 57d021c344SAndy King ssize_t copied, bool data_read, 58d021c344SAndy King struct vmci_transport_recv_notify_data *data); 59d021c344SAndy King int (*send_init) (struct sock *sk, 60d021c344SAndy King struct vmci_transport_send_notify_data *data); 61d021c344SAndy King int (*send_pre_block) (struct sock *sk, 62d021c344SAndy King struct vmci_transport_send_notify_data *data); 63d021c344SAndy King int (*send_pre_enqueue) (struct sock *sk, 64d021c344SAndy King struct vmci_transport_send_notify_data *data); 65d021c344SAndy King int (*send_post_enqueue) (struct sock *sk, ssize_t written, 66d021c344SAndy King struct vmci_transport_send_notify_data *data); 67d021c344SAndy King void (*process_request) (struct sock *sk); 68d021c344SAndy King void (*process_negotiate) (struct sock *sk); 69d021c344SAndy King }; 70d021c344SAndy King 713b22dae3SJulia Lawall extern const struct vmci_transport_notify_ops vmci_transport_notify_pkt_ops; 723b22dae3SJulia Lawall extern const 733b22dae3SJulia Lawall struct vmci_transport_notify_ops vmci_transport_notify_pkt_q_state_ops; 74d021c344SAndy King 75d021c344SAndy King #endif /* __VMCI_TRANSPORT_NOTIFY_H__ */ 76