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Spdk/lib/virtio/vhost_user.h

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virtio: add initial rev of virtio-scsi initiator bdev module Supports both PCI mode (for usage in guest VMs) and vhost-user mode (for usage in host processes). The rte_virtio subdirectory contains a lot of code lifted from the DPDK virtio-net driver. Most of the PCI and vhost-user code is reused almost exactly as-is, but the virtio code is drastically rewritten as the DPDK code was very network specific. Has been lightly tested with both the bdevio and bdevperf applications in both PCI and vhost-user modes. Still quite a bit of work needed - a list of todo items is included in a README in the module's directory. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: I85989d3de9ea89a87b719ececdb6d2ac16b77f53 Reviewed-on: https://review.gerrithub.io/374519 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-05-30 21:13:50 +00:00
/*-
* BSD LICENSE
*
* Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
virtio_user: use correct #ifndef for the internal vhost.h header Change-Id: I4a3f53ef76ea909abee6a523a3f86a01813444f2 Signed-off-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478413 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-12-19 07:52:55 +00:00
#ifndef _VHOST_H
#define _VHOST_H
virtio: add initial rev of virtio-scsi initiator bdev module Supports both PCI mode (for usage in guest VMs) and vhost-user mode (for usage in host processes). The rte_virtio subdirectory contains a lot of code lifted from the DPDK virtio-net driver. Most of the PCI and vhost-user code is reused almost exactly as-is, but the virtio code is drastically rewritten as the DPDK code was very network specific. Has been lightly tested with both the bdevio and bdevperf applications in both PCI and vhost-user modes. Still quite a bit of work needed - a list of todo items is included in a README in the module's directory. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: I85989d3de9ea89a87b719ececdb6d2ac16b77f53 Reviewed-on: https://review.gerrithub.io/374519 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-05-30 21:13:50 +00:00
rte_virtio: use spdk/stdinc.h Replace POSIX and standard C #includes with the central SPDK stdinc.h and remove the rte_virtio exclusion from header checking in scripts/check_format.sh Change-Id: Ie53d11de7cd9a51c59957e3c500bd8b9b4c4bc5e Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-on: https://review.gerrithub.io/383003 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-10-18 17:14:30 +00:00
#include "spdk/stdinc.h"
virtio: add initial rev of virtio-scsi initiator bdev module Supports both PCI mode (for usage in guest VMs) and vhost-user mode (for usage in host processes). The rte_virtio subdirectory contains a lot of code lifted from the DPDK virtio-net driver. Most of the PCI and vhost-user code is reused almost exactly as-is, but the virtio code is drastically rewritten as the DPDK code was very network specific. Has been lightly tested with both the bdevio and bdevperf applications in both PCI and vhost-user modes. Still quite a bit of work needed - a list of todo items is included in a README in the module's directory. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: I85989d3de9ea89a87b719ececdb6d2ac16b77f53 Reviewed-on: https://review.gerrithub.io/374519 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-05-30 21:13:50 +00:00
log: remove internal log.h header There is nothing left here, so remove it. Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com> Change-Id: Ib947d42bc577dbebb4650b1be885e05a80f8f8cf Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4541 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Anil Veerabhadrappa <anil.veerabhadrappa@broadcom.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com> Community-CI: Broadcom CI
2020-10-06 16:16:26 +00:00
#include "spdk/log.h"
virtio: add new library `virtio` Exported lib/bdev/rte_virtio as a separate library not dependent on bdev. Virtio is now accessible via spdk_internal/virtio.h. The header is marked `internal`, as it's not meant to be used by end users. It's not handy to handle all backend-specific (e.g. Virtio-SCSI) logic in a user code. For now the Virtio interface is publicly exposed only via bdev_virtio module. We might want to consider adding a separate, public Virtio-SCSI library in the future. Note: this patch doesn't do any changes to the virtio code. Everything is moved 1:1. Change-Id: I805e5d12d265d82b0bc5784c89fbadb81abdb278 Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/388166 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-11-20 12:17:52 +00:00
#include "spdk_internal/virtio.h"
virtio: export spec-defined structures into a separate header Those will be reused by the vhost target and its message handling hooks. Change-Id: If41118e3700f3b445312bb691c493bd13134546b Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/446084 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2019-02-25 07:38:15 +00:00
#include "spdk_internal/vhost_user.h"
virtio: add initial rev of virtio-scsi initiator bdev module Supports both PCI mode (for usage in guest VMs) and vhost-user mode (for usage in host processes). The rte_virtio subdirectory contains a lot of code lifted from the DPDK virtio-net driver. Most of the PCI and vhost-user code is reused almost exactly as-is, but the virtio code is drastically rewritten as the DPDK code was very network specific. Has been lightly tested with both the bdevio and bdevperf applications in both PCI and vhost-user modes. Still quite a bit of work needed - a list of todo items is included in a README in the module's directory. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: I85989d3de9ea89a87b719ececdb6d2ac16b77f53 Reviewed-on: https://review.gerrithub.io/374519 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-05-30 21:13:50 +00:00
rte_virtio/user: removed virtio_user_dev.h It's contents have been moved to virtio_user/vhost.h and virtio_dev.h. The virtio_user_dev struct can't be hidden in virtio_user.c (similarly to the virtio_hw), due to another abstraction layer in virtio_user - vhost-user and vhost-kernel. Even though only vhost-user is implemented now, let's not close the possibility to implement vhost-kernel in the future. The vhost-user/vhost-kernel code should probably be placed in separate files, with the virtio_user_dev struct in common vhost.h header. Change-Id: I36ee96eff30b398dd129953a874513e727619f98 Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/385622 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-11-03 12:22:50 +00:00
struct virtio_user_backend_ops;
struct virtio_user_dev {
int vhostfd;
virtio/pci: add user callback for creating PCI vdevs Added virtio_pci_dev_init, an equivalent to virtio_user_dev_init. It takes an opaque pci context pointer that is provided via virtio PCI enumerate API. virtio_pci will do only PCI-related initialization. The virtio_dev creation and SCSI-specific logic now belong to upper layers Change-Id: I7ad450591f893c4ab953c09cfb6441b186736751 Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/388302 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-11-20 22:22:02 +00:00
int callfds[SPDK_VIRTIO_MAX_VIRTQUEUES];
int kickfds[SPDK_VIRTIO_MAX_VIRTQUEUES];
rte_virtio/user: removed virtio_user_dev.h It's contents have been moved to virtio_user/vhost.h and virtio_dev.h. The virtio_user_dev struct can't be hidden in virtio_user.c (similarly to the virtio_hw), due to another abstraction layer in virtio_user - vhost-user and vhost-kernel. Even though only vhost-user is implemented now, let's not close the possibility to implement vhost-kernel in the future. The vhost-user/vhost-kernel code should probably be placed in separate files, with the virtio_user_dev struct in common vhost.h header. Change-Id: I36ee96eff30b398dd129953a874513e727619f98 Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/385622 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-11-03 12:22:50 +00:00
uint32_t queue_size;
uint8_t status;
char path[PATH_MAX];
virtio/user: support protocol features rte_vhost doesn't respect those, but any other implementation should. Change-Id: Id0a0fa031b7c6e9d572cdffeeb3a1e40d824826d Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/417456 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-07-02 10:43:05 +00:00
uint64_t protocol_features;
virtio/pci: add user callback for creating PCI vdevs Added virtio_pci_dev_init, an equivalent to virtio_user_dev_init. It takes an opaque pci context pointer that is provided via virtio PCI enumerate API. virtio_pci will do only PCI-related initialization. The virtio_dev creation and SCSI-specific logic now belong to upper layers Change-Id: I7ad450591f893c4ab953c09cfb6441b186736751 Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/388302 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-11-20 22:22:02 +00:00
struct vring vrings[SPDK_VIRTIO_MAX_VIRTQUEUES];
rte_virtio/user: removed virtio_user_dev.h It's contents have been moved to virtio_user/vhost.h and virtio_dev.h. The virtio_user_dev struct can't be hidden in virtio_user.c (similarly to the virtio_hw), due to another abstraction layer in virtio_user - vhost-user and vhost-kernel. Even though only vhost-user is implemented now, let's not close the possibility to implement vhost-kernel in the future. The vhost-user/vhost-kernel code should probably be placed in separate files, with the virtio_user_dev struct in common vhost.h header. Change-Id: I36ee96eff30b398dd129953a874513e727619f98 Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/385622 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-11-03 12:22:50 +00:00
struct virtio_user_backend_ops *ops;
virtio: support dynamic memory registrations We need to resend SET_MEM_TABLE whenever memory is hotplugged or hotremoved. Change-Id: I9bdc975f11b07866122bc49b9cf372071c5370f2 Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/422582 Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2018-08-16 16:10:18 +00:00
struct spdk_mem_map *mem_map;
rte_virtio/user: removed virtio_user_dev.h It's contents have been moved to virtio_user/vhost.h and virtio_dev.h. The virtio_user_dev struct can't be hidden in virtio_user.c (similarly to the virtio_hw), due to another abstraction layer in virtio_user - vhost-user and vhost-kernel. Even though only vhost-user is implemented now, let's not close the possibility to implement vhost-kernel in the future. The vhost-user/vhost-kernel code should probably be placed in separate files, with the virtio_user_dev struct in common vhost.h header. Change-Id: I36ee96eff30b398dd129953a874513e727619f98 Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/385622 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-11-03 12:22:50 +00:00
};
virtio: add initial rev of virtio-scsi initiator bdev module Supports both PCI mode (for usage in guest VMs) and vhost-user mode (for usage in host processes). The rte_virtio subdirectory contains a lot of code lifted from the DPDK virtio-net driver. Most of the PCI and vhost-user code is reused almost exactly as-is, but the virtio code is drastically rewritten as the DPDK code was very network specific. Has been lightly tested with both the bdevio and bdevperf applications in both PCI and vhost-user modes. Still quite a bit of work needed - a list of todo items is included in a README in the module's directory. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: I85989d3de9ea89a87b719ececdb6d2ac16b77f53 Reviewed-on: https://review.gerrithub.io/374519 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-05-30 21:13:50 +00:00
struct virtio_user_backend_ops {
int (*setup)(struct virtio_user_dev *dev);
int (*send_request)(struct virtio_user_dev *dev,
enum vhost_user_request req,
void *arg);
};
extern struct virtio_user_backend_ops ops_user;
#endif
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