17d55c9fd4
Briefly tested with SPDK target via bdevio through both vhost-user and QEMU's virtio-pci. vhost-blk driver is not mentioned in any doc yet. A virtio-blk bdev can be created as following: `construct_virtio_user_blk_bdev /tmp/virtio.0 MyVirtioBlk0 --vq-count 16` `construct_virtio_pci_blk_bdev 0000:01:00.0 MyVirtioBlk1` or ``` [VirtioUser0] Path /tmp/vhost.0 Type Blk Queues 16 [VirtioPci] Enable Yes ``` If `Type` field is not present, the VirtioUser section will be parsed as a SCSI one, preserving backward compatibility. Change-Id: I3eae9f3b90570fbb0177df4951e5eed86fe07c66 Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/393056 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>
77 lines
2.8 KiB
C
77 lines
2.8 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "env_internal.h"
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#include "spdk/pci_ids.h"
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static struct rte_pci_id virtio_pci_driver_id[] = {
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{ RTE_PCI_DEVICE(SPDK_PCI_VID_VIRTIO, PCI_DEVICE_ID_VIRTIO_SCSI_MODERN) },
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{ RTE_PCI_DEVICE(SPDK_PCI_VID_VIRTIO, PCI_DEVICE_ID_VIRTIO_BLK_MODERN) },
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{ .vendor_id = 0, /* sentinel */ },
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};
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static struct spdk_pci_enum_ctx g_virtio_pci_drv = {
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.driver = {
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.drv_flags = RTE_PCI_DRV_NEED_MAPPING,
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.id_table = virtio_pci_driver_id,
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#if RTE_VERSION >= RTE_VERSION_NUM(16, 11, 0, 0)
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.probe = spdk_pci_device_init,
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.remove = spdk_pci_device_fini,
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.driver.name = "spdk_virtio",
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#else
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.devinit = spdk_pci_device_init,
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.devuninit = spdk_pci_device_fini,
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.name = "spdk_virtio",
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#endif
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},
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.cb_fn = NULL,
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.cb_arg = NULL,
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.mtx = PTHREAD_MUTEX_INITIALIZER,
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.is_registered = false,
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};
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int
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spdk_pci_virtio_device_attach(spdk_pci_enum_cb enum_cb,
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void *enum_ctx, struct spdk_pci_addr *pci_address)
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{
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return spdk_pci_device_attach(&g_virtio_pci_drv, enum_cb, enum_ctx, pci_address);
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}
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int
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spdk_pci_virtio_enumerate(spdk_pci_enum_cb enum_cb, void *enum_ctx)
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{
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return spdk_pci_enumerate(&g_virtio_pci_drv, enum_cb, enum_ctx);
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}
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