/* * VMware vSockets Driver * * Copyright (C) 2013 VMware, Inc. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation version 2 and no later version. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. */ #ifndef _VMCI_TRANSPORT_H_ #define _VMCI_TRANSPORT_H_ #include #include #include #include /* If the packet format changes in a release then this should change too. */ #define VMCI_TRANSPORT_PACKET_VERSION 1 /* The resource ID on which control packets are sent. */ #define VMCI_TRANSPORT_PACKET_RID 1 /* The resource ID on which control packets are sent to the hypervisor. */ #define VMCI_TRANSPORT_HYPERVISOR_PACKET_RID 15 #define VSOCK_PROTO_INVALID 0 #define VSOCK_PROTO_PKT_ON_NOTIFY (1 << 0) #define VSOCK_PROTO_ALL_SUPPORTED (VSOCK_PROTO_PKT_ON_NOTIFY) #define vmci_trans(_vsk) ((struct vmci_transport *)((_vsk)->trans)) enum vmci_transport_packet_type { VMCI_TRANSPORT_PACKET_TYPE_INVALID = 0, VMCI_TRANSPORT_PACKET_TYPE_REQUEST, VMCI_TRANSPORT_PACKET_TYPE_NEGOTIATE, VMCI_TRANSPORT_PACKET_TYPE_OFFER, VMCI_TRANSPORT_PACKET_TYPE_ATTACH, VMCI_TRANSPORT_PACKET_TYPE_WROTE, VMCI_TRANSPORT_PACKET_TYPE_READ, VMCI_TRANSPORT_PACKET_TYPE_RST, VMCI_TRANSPORT_PACKET_TYPE_SHUTDOWN, VMCI_TRANSPORT_PACKET_TYPE_WAITING_WRITE, VMCI_TRANSPORT_PACKET_TYPE_WAITING_READ, VMCI_TRANSPORT_PACKET_TYPE_REQUEST2, VMCI_TRANSPORT_PACKET_TYPE_NEGOTIATE2, VMCI_TRANSPORT_PACKET_TYPE_MAX }; struct vmci_transport_waiting_info { u64 generation; u64 offset; }; /* Control packet type for STREAM sockets. DGRAMs have no control packets nor * special packet header for data packets, they are just raw VMCI DGRAM * messages. For STREAMs, control packets are sent over the control channel * while data is written and read directly from queue pairs with no packet * format. */ struct vmci_transport_packet { struct vmci_datagram dg; u8 version; u8 type; u16 proto; u32 src_port; u32 dst_port; u32 _reserved2; union { u64 size; u64 mode; struct vmci_handle handle; struct vmci_transport_waiting_info wait; } u; }; struct vmci_transport_notify_pkt { u64 write_notify_window; u64 write_notify_min_window; bool peer_waiting_read; bool peer_waiting_write; bool peer_waiting_write_detected; bool sent_waiting_read; bool sent_waiting_write; struct vmci_transport_waiting_info peer_waiting_read_info; struct vmci_transport_waiting_info peer_waiting_write_info; u64 produce_q_generation; u64 consume_q_generation; }; struct vmci_transport_notify_pkt_q_state { u64 write_notify_window; u64 write_notify_min_window; bool peer_waiting_write; bool peer_waiting_write_detected; }; union vmci_transport_notify { struct vmci_transport_notify_pkt pkt; struct vmci_transport_notify_pkt_q_state pkt_q_state; }; /* Our transport-specific data. */ struct vmci_transport { /* For DGRAMs. */ struct vmci_handle dg_handle; /* For STREAMs. */ struct vmci_handle qp_handle; struct vmci_qp *qpair; u64 produce_size; u64 consume_size; u64 queue_pair_size; u64 queue_pair_min_size; u64 queue_pair_max_size; u32 detach_sub_id; union vmci_transport_notify notify; const struct vmci_transport_notify_ops *notify_ops; struct list_head elem; struct sock *sk; spinlock_t lock; /* protects sk. */ }; int vmci_transport_register(void); void vmci_transport_unregister(void); int vmci_transport_send_wrote_bh(struct sockaddr_vm *dst, struct sockaddr_vm *src); int vmci_transport_send_read_bh(struct sockaddr_vm *dst, struct sockaddr_vm *src); int vmci_transport_send_wrote(struct sock *sk); int vmci_transport_send_read(struct sock *sk); int vmci_transport_send_waiting_write(struct sock *sk, struct vmci_transport_waiting_info *wait); int vmci_transport_send_waiting_read(struct sock *sk, struct vmci_transport_waiting_info *wait); #endif value='40'>40space:mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-11 11:17:54 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-11 11:17:54 -0800
commit69973b830859bc6529a7a0468ba0d80ee5117826 (patch)
tree5f11fe15ed9d9a3ab9c92242030e54b73ecdce45 /tools/objtool/Makefile
parent2e4333c14de06a333783d6812cf3c4998f78b0c8 (diff)
Linux 4.9
Diffstat (limited to 'tools/objtool/Makefile')