From 1ba0fa4bfa3dcc9bd754b8b0b6a7c5045f9ba0dd Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Sun, 4 Mar 2018 17:19:08 +0100 Subject: vlib: vfio code rework Change-Id: I99cf3e7cc991aa7d32385a155c707a6516516117 Signed-off-by: Damjan Marion --- src/vlib/linux/vfio.h | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 src/vlib/linux/vfio.h (limited to 'src/vlib/linux/vfio.h') diff --git a/src/vlib/linux/vfio.h b/src/vlib/linux/vfio.h new file mode 100644 index 00000000000..8e0758cf2e4 --- /dev/null +++ b/src/vlib/linux/vfio.h @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2018 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 included_vlib_linux_vfio_h +#define included_vlib_linux_vfio_h + +typedef struct +{ + int group; + int fd; + int refcnt; +} linux_pci_vfio_iommu_group_t; + +typedef struct +{ + u32 flags; +#define LINUX_VFIO_F_HAVE_IOMMU (1 << 0) + int container_fd; + int ext_container_fd; /* container fd used by external library, i.e DPDK */ + + /* VFIO */ + int iommu_mode; + + /* pool of IOMMU groups */ + linux_pci_vfio_iommu_group_t *iommu_groups; + + /* iommu group pool index by group id hash */ + uword *iommu_pool_index_by_group; + +} linux_vfio_main_t; + +extern linux_vfio_main_t vfio_main; + +clib_error_t *linux_vfio_init (vlib_main_t * vm); +void linux_vfio_dma_map_regions (vlib_main_t * vm); +clib_error_t *linux_vfio_group_get_device_fd (vlib_pci_addr_t * addr, + int *fd); + + +#endif /* included_vlib_linux_vfio_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg