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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/net/vmw_vsock/vmci_transport.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/net/vmw_vsock/vmci_transport.h')
-rw-r--r-- | kernel/net/vmw_vsock/vmci_transport.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/kernel/net/vmw_vsock/vmci_transport.h b/kernel/net/vmw_vsock/vmci_transport.h new file mode 100644 index 000000000..ce6c9623d --- /dev/null +++ b/kernel/net/vmw_vsock/vmci_transport.h @@ -0,0 +1,142 @@ +/* + * 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 <linux/vmw_vmci_defs.h> +#include <linux/vmw_vmci_api.h> + +#include <net/vsock_addr.h> +#include <net/af_vsock.h> + +/* 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 attach_sub_id; + u32 detach_sub_id; + union vmci_transport_notify notify; + struct vmci_transport_notify_ops *notify_ops; +}; + +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 |