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Diffstat (limited to 'include/linux/venet.h')
| -rw-r--r-- | include/linux/venet.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/include/linux/venet.h b/include/linux/venet.h new file mode 100644 index 000000000000..0578d797c973 --- /dev/null +++ b/include/linux/venet.h @@ -0,0 +1,133 @@ +/* + * Copyright 2009 Novell. All Rights Reserved. + * + * Virtual-Ethernet adapter + * + * Author: + * Gregory Haskins <ghaskins@novell.com> + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License + * as published by the Free Software Foundation. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef _LINUX_VENET_H +#define _LINUX_VENET_H + +#include <linux/types.h> + +#define VENET_VERSION 1 + +#define VENET_TYPE "virtual-ethernet" + +#define VENET_QUEUE_RX 0 +#define VENET_QUEUE_TX 1 + +struct venet_capabilities { + __u32 gid; + __u32 bits; +}; + +#define VENET_CAP_GROUP_SG 0 +#define VENET_CAP_GROUP_EVENTQ 1 +#define VENET_CAP_GROUP_L4RO 2 /* layer-4 reassem offloading */ + +/* CAPABILITIES-GROUP SG */ +#define VENET_CAP_SG (1 << 0) +#define VENET_CAP_TSO4 (1 << 1) +#define VENET_CAP_TSO6 (1 << 2) +#define VENET_CAP_ECN (1 << 3) +#define VENET_CAP_UFO (1 << 4) +#define VENET_CAP_PMTD (1 << 5) /* pre-mapped tx desc */ + +/* CAPABILITIES-GROUP EVENTQ */ +#define VENET_CAP_EVQ_LINKSTATE (1 << 0) +#define VENET_CAP_EVQ_TXC (1 << 1) /* tx-complete */ + +struct venet_iov { + __u32 len; + __u64 ptr; +}; + +#define VENET_SG_FLAG_NEEDS_CSUM (1 << 0) +#define VENET_SG_FLAG_GSO (1 << 1) +#define VENET_SG_FLAG_ECN (1 << 2) + +struct venet_sg { + __u64 cookie; + __u32 flags; + __u32 len; /* total length of all iovs */ + struct { + __u16 start; /* csum starting position */ + __u16 offset; /* offset to place csum */ + } csum; + struct { +#define VENET_GSO_TYPE_TCPV4 0 /* IPv4 TCP (TSO) */ +#define VENET_GSO_TYPE_UDP 1 /* IPv4 UDP (UFO) */ +#define VENET_GSO_TYPE_TCPV6 2 /* IPv6 TCP */ + __u8 type; + __u16 hdrlen; + __u16 size; + } gso; + __u32 count; /* nr of iovs */ + struct venet_iov iov[1]; +}; + +struct venet_eventq_query { + __u32 flags; + __u32 evsize; /* size of each event */ + __u32 dpid; /* descriptor pool-id */ + __u32 qid; + __u8 pad[16]; +}; + +#define VENET_EVENT_LINKSTATE 0 +#define VENET_EVENT_TXC 1 + +struct venet_event_header { + __u32 flags; + __u32 size; + __u32 id; +}; + +struct venet_event_linkstate { + struct venet_event_header header; + __u8 state; /* 0 = down, 1 = up */ +}; + +struct venet_event_txc { + struct venet_event_header header; + __u32 txqid; + __u64 cookie; +}; + +struct venet_l4ro_query { + __u32 flags; + __u32 dpid; /* descriptor pool-id */ + __u32 pqid; /* page queue-id */ + __u8 pad[20]; +}; + + +#define VSG_DESC_SIZE(count) (sizeof(struct venet_sg) + \ + sizeof(struct venet_iov) * ((count) - 1)) + +#define VENET_FUNC_LINKUP 0 +#define VENET_FUNC_LINKDOWN 1 +#define VENET_FUNC_MACQUERY 2 +#define VENET_FUNC_NEGCAP 3 /* negotiate capabilities */ +#define VENET_FUNC_FLUSHRX 4 +#define VENET_FUNC_PMTDQUERY 5 +#define VENET_FUNC_EVQQUERY 6 +#define VENET_FUNC_L4ROQUERY 7 + +#endif /* _LINUX_VENET_H */ |