diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/plugins/vhost/CMakeLists.txt | 32 | ||||
| -rw-r--r-- | src/plugins/vhost/FEATURE.yaml | 13 | ||||
| -rw-r--r-- | src/plugins/vhost/plugin.c | 22 | ||||
| -rw-r--r-- | src/plugins/vhost/vhost_std.h | 69 | ||||
| -rw-r--r-- | src/plugins/vhost/vhost_user.api (renamed from src/vnet/devices/virtio/vhost_user.api) | 0 | ||||
| -rw-r--r-- | src/plugins/vhost/vhost_user.c (renamed from src/vnet/devices/virtio/vhost_user.c) | 4 | ||||
| -rw-r--r-- | src/plugins/vhost/vhost_user.h (renamed from src/vnet/devices/virtio/vhost_user.h) | 4 | ||||
| -rw-r--r-- | src/plugins/vhost/vhost_user_api.c (renamed from src/vnet/devices/virtio/vhost_user_api.c) | 20 | ||||
| -rw-r--r-- | src/plugins/vhost/vhost_user_inline.h (renamed from src/vnet/devices/virtio/vhost_user_inline.h) | 0 | ||||
| -rw-r--r-- | src/plugins/vhost/vhost_user_input.c (renamed from src/vnet/devices/virtio/vhost_user_input.c) | 4 | ||||
| -rw-r--r-- | src/plugins/vhost/vhost_user_output.c (renamed from src/vnet/devices/virtio/vhost_user_output.c) | 4 | ||||
| -rw-r--r-- | src/plugins/vhost/virtio_std.h | 188 | ||||
| -rw-r--r-- | src/vnet/CMakeLists.txt | 8 |
13 files changed, 345 insertions, 23 deletions
diff --git a/src/plugins/vhost/CMakeLists.txt b/src/plugins/vhost/CMakeLists.txt new file mode 100644 index 00000000000..f72d9f20346 --- /dev/null +++ b/src/plugins/vhost/CMakeLists.txt @@ -0,0 +1,32 @@ +# Copyright (c) 2020 Cisco and/or its affiliates. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +add_vpp_plugin(vhost + SOURCES + plugin.c + vhost_user.c + vhost_user_api.c + vhost_user_input.c + vhost_user_output.c + vhost_std.h + vhost_user.h + vhost_user_inline.h + virtio_std.h + + MULTIARCH_SOURCES + vhost_user_input.c + vhost_user_output.c + + API_FILES + vhost_user.api +) diff --git a/src/plugins/vhost/FEATURE.yaml b/src/plugins/vhost/FEATURE.yaml new file mode 100644 index 00000000000..7104dda1dc5 --- /dev/null +++ b/src/plugins/vhost/FEATURE.yaml @@ -0,0 +1,13 @@ +--- +name: Vhost-user Device Driver +maintainer: sluong@cisco.com +features: + - Device mode to emulate vhost-user interface presented to VPP from the + guest VM. + - Support virtio 1.0 in virtio + - Support virtio 1.1 packed ring in virtio [experimental] + - Support multi-queue, GSO, checksum offload, indirect descriptor, + jumbo frame, and packed ring. +description: "Vhost-user implementation" +state: production +properties: [API, CLI, STATS, MULTITHREAD] diff --git a/src/plugins/vhost/plugin.c b/src/plugins/vhost/plugin.c new file mode 100644 index 00000000000..dc5de1c9ed8 --- /dev/null +++ b/src/plugins/vhost/plugin.c @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: Apache-2.0 + * Copyright (c) 2022 Cisco Systems, Inc. + * License: Cisco Proprietary Closed Source License - Cisco Internal. + * The software, documentation and any fonts accompanying this License whether + * on disk, in read only memory, on any other media or in any other form (col- + * lectively the “Software”) are licensed, not sold, to you by Cisco, Inc. + * (“Cisco”) for use only under the terms of this License, and Cisco reserves + * all rights not expressly granted to you. The rights granted herein are + * limited to Cisco’s intel- lectual property rights in the Cisco Software and + * do not include any other patents or intellectual property rights. You own + * the media on which the Cisco Software is recorded but Cisco and/or Cisco’s + * licensor(s) retain ownership of the Software itself. + */ + +#include <vlib/vlib.h> +#include <vnet/plugin/plugin.h> +#include <vpp/app/version.h> + +VLIB_PLUGIN_REGISTER () = { + .version = VPP_BUILD_VER, + .description = "Vhost-User", +}; diff --git a/src/plugins/vhost/vhost_std.h b/src/plugins/vhost/vhost_std.h new file mode 100644 index 00000000000..7799093bac3 --- /dev/null +++ b/src/plugins/vhost/vhost_std.h @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef __VHOST_STD_H__ +#define __VHOST_STD_H__ + +typedef struct +{ + u64 guest_phys_addr; + u64 memory_size; + u64 userspace_addr; + u64 mmap_offset; +} vhost_memory_region_t; + +typedef struct +{ + u32 nregions; + u32 padding; + vhost_memory_region_t regions[0]; +} vhost_memory_t; + +typedef struct +{ + u32 index; + u32 num; +} vhost_vring_state_t; + +typedef struct +{ + u32 index; + int fd; +} vhost_vring_file_t; + +typedef struct +{ + u32 index; + u32 flags; + u64 desc_user_addr; + u64 used_user_addr; + u64 avail_user_addr; + u64 log_guest_addr; +} vhost_vring_addr_t; + +typedef struct +{ + u64 size; + u64 offset; +} vhost_user_log_t; + +#endif + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/vnet/devices/virtio/vhost_user.api b/src/plugins/vhost/vhost_user.api index b026ba768a9..b026ba768a9 100644 --- a/src/vnet/devices/virtio/vhost_user.api +++ b/src/plugins/vhost/vhost_user.api diff --git a/src/vnet/devices/virtio/vhost_user.c b/src/plugins/vhost/vhost_user.c index b6e0806db90..fac20800848 100644 --- a/src/vnet/devices/virtio/vhost_user.c +++ b/src/plugins/vhost/vhost_user.c @@ -39,8 +39,8 @@ #include <vnet/interface/rx_queue_funcs.h> #include <vnet/interface/tx_queue_funcs.h> -#include <vnet/devices/virtio/vhost_user.h> -#include <vnet/devices/virtio/vhost_user_inline.h> +#include <vhost/vhost_user.h> +#include <vhost/vhost_user_inline.h> /** * @file diff --git a/src/vnet/devices/virtio/vhost_user.h b/src/plugins/vhost/vhost_user.h index f44951e030a..3479d65cbc6 100644 --- a/src/vnet/devices/virtio/vhost_user.h +++ b/src/plugins/vhost/vhost_user.h @@ -15,8 +15,8 @@ #ifndef __VIRTIO_VHOST_USER_H__ #define __VIRTIO_VHOST_USER_H__ -#include <vnet/devices/virtio/virtio_std.h> -#include <vnet/devices/virtio/vhost_std.h> +#include <vhost/virtio_std.h> +#include <vhost/vhost_std.h> /* vhost-user data structures */ diff --git a/src/vnet/devices/virtio/vhost_user_api.c b/src/plugins/vhost/vhost_user_api.c index cc1896b108a..d522803a011 100644 --- a/src/vnet/devices/virtio/vhost_user_api.c +++ b/src/plugins/vhost/vhost_user_api.c @@ -22,14 +22,13 @@ #include <vnet/interface.h> #include <vnet/api_errno.h> -#include <vnet/devices/virtio/vhost_user.h> +#include <vhost/vhost_user.h> #include <vnet/ethernet/ethernet.h> #include <vnet/ethernet/ethernet_types_api.h> -#include <vnet/devices/virtio/virtio_types_api.h> #include <vnet/format_fns.h> -#include <vnet/devices/virtio/vhost_user.api_enum.h> -#include <vnet/devices/virtio/vhost_user.api_types.h> +#include <vhost/vhost_user.api_enum.h> +#include <vhost/vhost_user.api_types.h> #define REPLY_MSG_ID_BASE msg_id_base #include <vlibapi/api_helper_macros.h> @@ -261,6 +260,13 @@ vl_api_delete_vhost_user_if_t_handler (vl_api_delete_vhost_user_if_t * mp) } static void +vhost_user_features_encode (u64 features, u32 *first, u32 *last) +{ + *first = clib_net_to_host_u32 (features); + *last = clib_net_to_host_u32 (features >> 32); +} + +static void send_sw_interface_vhost_user_details (vpe_api_main_t * am, vl_api_registration_t * reg, vhost_user_intf_details_t * vui, @@ -274,8 +280,8 @@ send_sw_interface_vhost_user_details (vpe_api_main_t * am, ntohs (REPLY_MSG_ID_BASE + VL_API_SW_INTERFACE_VHOST_USER_DETAILS); mp->sw_if_index = ntohl (vui->sw_if_index); mp->virtio_net_hdr_sz = ntohl (vui->virtio_net_hdr_sz); - virtio_features_encode (vui->features, (u32 *) & mp->features_first_32, - (u32 *) & mp->features_last_32); + vhost_user_features_encode (vui->features, (u32 *) &mp->features_first_32, + (u32 *) &mp->features_last_32); mp->is_server = vui->is_server; mp->num_regions = ntohl (vui->num_regions); mp->sock_errno = ntohl (vui->sock_errno); @@ -324,7 +330,7 @@ static void vec_free (ifaces); } -#include <vnet/devices/virtio/vhost_user.api.c> +#include <vhost/vhost_user.api.c> static clib_error_t * vhost_user_api_hookup (vlib_main_t * vm) { diff --git a/src/vnet/devices/virtio/vhost_user_inline.h b/src/plugins/vhost/vhost_user_inline.h index 8bdff3733a7..8bdff3733a7 100644 --- a/src/vnet/devices/virtio/vhost_user_inline.h +++ b/src/plugins/vhost/vhost_user_inline.h diff --git a/src/vnet/devices/virtio/vhost_user_input.c b/src/plugins/vhost/vhost_user_input.c index 841a9798212..c083f43ba7c 100644 --- a/src/vnet/devices/virtio/vhost_user_input.c +++ b/src/plugins/vhost/vhost_user_input.c @@ -40,8 +40,8 @@ #include <vnet/tcp/tcp_packet.h> #include <vnet/interface/rx_queue_funcs.h> -#include <vnet/devices/virtio/vhost_user.h> -#include <vnet/devices/virtio/vhost_user_inline.h> +#include <vhost/vhost_user.h> +#include <vhost/vhost_user_inline.h> #include <vnet/ip/ip4_packet.h> #include <vnet/ip/ip6_packet.h> diff --git a/src/vnet/devices/virtio/vhost_user_output.c b/src/plugins/vhost/vhost_user_output.c index 3b7bf97c3f8..9b52fc6265c 100644 --- a/src/vnet/devices/virtio/vhost_user_output.c +++ b/src/plugins/vhost/vhost_user_output.c @@ -39,8 +39,8 @@ #include <vnet/feature/feature.h> #include <vnet/ip/ip_psh_cksum.h> -#include <vnet/devices/virtio/vhost_user.h> -#include <vnet/devices/virtio/vhost_user_inline.h> +#include <vhost/vhost_user.h> +#include <vhost/vhost_user_inline.h> #include <vnet/gso/hdr_offset_parser.h> /* diff --git a/src/plugins/vhost/virtio_std.h b/src/plugins/vhost/virtio_std.h new file mode 100644 index 00000000000..fa826933a9c --- /dev/null +++ b/src/plugins/vhost/virtio_std.h @@ -0,0 +1,188 @@ +/* + * Copyright (c) 2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef __VIRTIO_STD_H__ +#define __VIRTIO_STD_H__ + +#define foreach_virtio_net_features \ + _ (VIRTIO_NET_F_CSUM, 0) /* Host handles pkts w/ partial csum */ \ + _ (VIRTIO_NET_F_GUEST_CSUM, 1) /* Guest handles pkts w/ partial csum */ \ + _ (VIRTIO_NET_F_CTRL_GUEST_OFFLOADS, \ + 2) /* Dynamic offload configuration. */ \ + _ (VIRTIO_NET_F_MTU, 3) /* Initial MTU advice. */ \ + _ (VIRTIO_NET_F_MAC, 5) /* Host has given MAC address. */ \ + _ (VIRTIO_NET_F_GSO, 6) /* Host handles pkts w/ any GSO. */ \ + _ (VIRTIO_NET_F_GUEST_TSO4, 7) /* Guest can handle TSOv4 in. */ \ + _ (VIRTIO_NET_F_GUEST_TSO6, 8) /* Guest can handle TSOv6 in. */ \ + _ (VIRTIO_NET_F_GUEST_ECN, 9) /* Guest can handle TSO[6] w/ ECN in. */ \ + _ (VIRTIO_NET_F_GUEST_UFO, 10) /* Guest can handle UFO in. */ \ + _ (VIRTIO_NET_F_HOST_TSO4, 11) /* Host can handle TSOv4 in. */ \ + _ (VIRTIO_NET_F_HOST_TSO6, 12) /* Host can handle TSOv6 in. */ \ + _ (VIRTIO_NET_F_HOST_ECN, 13) /* Host can handle TSO[6] w/ ECN in. */ \ + _ (VIRTIO_NET_F_HOST_UFO, 14) /* Host can handle UFO in. */ \ + _ (VIRTIO_NET_F_MRG_RXBUF, 15) /* Host can merge receive buffers. */ \ + _ (VIRTIO_NET_F_STATUS, 16) /* virtio_net_config.status available */ \ + _ (VIRTIO_NET_F_CTRL_VQ, 17) /* Control channel available */ \ + _ (VIRTIO_NET_F_CTRL_RX, 18) /* Control channel RX mode support */ \ + _ (VIRTIO_NET_F_CTRL_VLAN, 19) /* Control channel VLAN filtering */ \ + _ (VIRTIO_NET_F_CTRL_RX_EXTRA, 20) /* Extra RX mode control support */ \ + _ (VIRTIO_NET_F_GUEST_ANNOUNCE, \ + 21) /* Guest can announce device on the network */ \ + _ (VIRTIO_NET_F_MQ, 22) /* Device supports Receive Flow Steering */ \ + _ (VIRTIO_NET_F_CTRL_MAC_ADDR, 23) /* Set MAC address */ \ + _ (VIRTIO_F_NOTIFY_ON_EMPTY, 24) \ + _ (VHOST_F_LOG_ALL, 26) /* Log all write descriptors */ \ + _ (VIRTIO_F_ANY_LAYOUT, \ + 27) /* Can the device handle any descriptor layout */ \ + _ (VIRTIO_RING_F_INDIRECT_DESC, \ + 28) /* Support indirect buffer descriptors */ \ + _ (VIRTIO_RING_F_EVENT_IDX, \ + 29) /* The Guest publishes the used index for which it expects an \ + * interrupt at the end of the avail ring. Host should ignore the \ + * avail->flags field. */ \ + /* The Host publishes the avail index for which it expects a kick \ + * at the end of the used ring. Guest should ignore the used->flags field. \ + */ \ + _ (VHOST_USER_F_PROTOCOL_FEATURES, 30) \ + _ (VIRTIO_F_VERSION_1, 32) /* v1.0 compliant. */ \ + _ (VIRTIO_F_IOMMU_PLATFORM, 33) \ + _ (VIRTIO_F_RING_PACKED, 34) \ + _ (VIRTIO_F_IN_ORDER, 35) /* all buffers are used by the device in the */ \ + /* same order in which they have been made available */ \ + _ (VIRTIO_F_ORDER_PLATFORM, 36) /* memory accesses by the driver and the */ \ + /* device are ordered in a way described by the platfor */ \ + _ (VIRTIO_F_NOTIFICATION_DATA, \ + 38) /* the driver passes extra data (besides */ \ + /* identifying the virtqueue) in its device notifications. */ \ + _ (VIRTIO_NET_F_SPEED_DUPLEX, 63) /* Device set linkspeed and duplex */ + +typedef enum +{ +#define _(f, n) f = n, + foreach_virtio_net_features +#undef _ +} vnet_virtio_net_feature_t; + +#define VIRTIO_FEATURE(X) (1ULL << X) + +#define VRING_MAX_SIZE 32768 + +#define VRING_DESC_F_NEXT 1 +#define VRING_DESC_F_WRITE 2 +#define VRING_DESC_F_INDIRECT 4 + +#define VRING_DESC_F_AVAIL (1 << 7) +#define VRING_DESC_F_USED (1 << 15) + +#define foreach_virtio_event_idx_flags \ + _ (VRING_EVENT_F_ENABLE, 0) \ + _ (VRING_EVENT_F_DISABLE, 1) \ + _ (VRING_EVENT_F_DESC, 2) + +typedef enum +{ +#define _(f, n) f = n, + foreach_virtio_event_idx_flags +#undef _ +} vnet_virtio_event_idx_flags_t; + +#define VRING_USED_F_NO_NOTIFY 1 +#define VRING_AVAIL_F_NO_INTERRUPT 1 + +typedef struct +{ + u64 addr; + u32 len; + u16 flags; + u16 next; +} vnet_virtio_vring_desc_t; + +typedef struct +{ + u16 flags; + u16 idx; + u16 ring[0]; + /* u16 used_event; */ +} vnet_virtio_vring_avail_t; + +typedef struct +{ + u32 id; + u32 len; +} vnet_virtio_vring_used_elem_t; + +typedef struct +{ + u16 flags; + u16 idx; + vnet_virtio_vring_used_elem_t ring[0]; + /* u16 avail_event; */ +} vnet_virtio_vring_used_t; + +typedef CLIB_PACKED (struct { + u64 addr; // packet data buffer address + u32 len; // packet data buffer size + u16 id; // buffer id + u16 flags; // flags +}) vnet_virtio_vring_packed_desc_t; + +STATIC_ASSERT_SIZEOF (vnet_virtio_vring_packed_desc_t, 16); + +typedef CLIB_PACKED (struct { + u16 off_wrap; + u16 flags; +}) vnet_virtio_vring_desc_event_t; + +#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start, csum_offset */ +#define VIRTIO_NET_HDR_F_DATA_VALID 2 /* Csum is valid */ + +#define VIRTIO_NET_HDR_GSO_NONE 0 /* Not a GSO frame */ +#define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */ +#define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */ +#define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */ +#define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */ + +typedef CLIB_PACKED (struct { + u8 flags; + u8 gso_type; + u16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */ + u16 gso_size; /* Bytes to append to hdr_len per frame */ + u16 csum_start; /* Position to start checksumming from */ + u16 csum_offset; /* Offset after that to place checksum */ + u16 num_buffers; /* Number of merged rx buffers */ +}) vnet_virtio_net_hdr_v1_t; + +typedef CLIB_PACKED (struct { + u8 flags; + u8 gso_type; + u16 hdr_len; + u16 gso_size; + u16 csum_start; + u16 csum_offset; +}) vnet_virtio_net_hdr_t; + +typedef CLIB_PACKED (struct { + vnet_virtio_net_hdr_t hdr; + u16 num_buffers; +}) vnet_virtio_net_hdr_mrg_rxbuf_t; + +#endif + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/vnet/CMakeLists.txt b/src/vnet/CMakeLists.txt index fd62217dbf9..7006bd50e67 100644 --- a/src/vnet/CMakeLists.txt +++ b/src/vnet/CMakeLists.txt @@ -986,10 +986,6 @@ list(APPEND VNET_SOURCES devices/virtio/format.c devices/virtio/node.c devices/virtio/pci.c - devices/virtio/vhost_user.c - devices/virtio/vhost_user_input.c - devices/virtio/vhost_user_output.c - devices/virtio/vhost_user_api.c devices/virtio/virtio.c devices/virtio/virtio_api.c devices/virtio/virtio_pci_legacy.c @@ -1006,20 +1002,16 @@ list(APPEND VNET_HEADERS devices/virtio/virtio_pci_legacy.h devices/virtio/virtio_pci_modern.h devices/virtio/vhost_std.h - devices/virtio/vhost_user.h devices/virtio/virtio_types_api.h ) list(APPEND VNET_MULTIARCH_SOURCES - devices/virtio/vhost_user_input.c - devices/virtio/vhost_user_output.c devices/virtio/node.c devices/af_packet/node.c devices/virtio/device.c ) list(APPEND VNET_API_FILES - devices/virtio/vhost_user.api devices/virtio/virtio.api devices/virtio/virtio_types.api ) |