FD.io VPP
v21.10.1-2-g0a485f517
Vector Packet Processing
virtio_pci_modern.h
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/*
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* Copyright (c) 2020 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <
vnet/devices/virtio/virtio.h
>
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#include <
vnet/devices/virtio/pci.h
>
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/* common configuration */
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#define VIRTIO_FEATURE_SELECT_HI 1
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#define VIRTIO_FEATURE_SELECT_LO 0
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#define VIRTIO_DEVICE_FEATURE_SELECT_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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device_feature_select))
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#define VIRTIO_DEVICE_FEATURE_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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device_feature))
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#define VIRTIO_DRIVER_FEATURE_SELECT_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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driver_feature_select))
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#define VIRTIO_DRIVER_FEATURE_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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driver_feature))
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#define VIRTIO_MSIX_CONFIG_VECTOR_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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msix_config))
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#define VIRTIO_NUM_QUEUES_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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num_queues))
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#define VIRTIO_DEVICE_STATUS_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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device_status))
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#define VIRTIO_CONFIG_GENERATION_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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config_generation))
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#define VIRTIO_QUEUE_SELECT_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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queue_select))
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#define VIRTIO_QUEUE_SIZE_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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queue_size))
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#define VIRTIO_QUEUE_MSIX_VECTOR_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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queue_msix_vector))
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#define VIRTIO_QUEUE_ENABLE_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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queue_enable))
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#define VIRTIO_QUEUE_NOTIFY_OFF_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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queue_notify_off))
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#define VIRTIO_QUEUE_DESC_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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queue_desc))
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#define VIRTIO_QUEUE_DRIVER_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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queue_driver))
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#define VIRTIO_QUEUE_DEVICE_OFFSET(v) \
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(v->common_offset + STRUCT_OFFSET_OF (virtio_pci_common_cfg_t, \
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queue_device))
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/* device configuration */
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#define VIRTIO_MAC_OFFSET(v) \
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(v->device_offset + STRUCT_OFFSET_OF (virtio_net_config_t, \
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mac))
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#define VIRTIO_STATUS_OFFSET(v) \
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(v->device_offset + STRUCT_OFFSET_OF (virtio_net_config_t, \
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status))
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#define VIRTIO_MAX_VIRTQUEUE_PAIRS_OFFSET(v) \
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(v->device_offset + STRUCT_OFFSET_OF (virtio_net_config_t, \
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max_virtqueue_pairs))
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#define VIRTIO_MTU_OFFSET(v) \
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(v->device_offset + STRUCT_OFFSET_OF (virtio_net_config_t, \
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mtu))
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/* interrupt service routine */
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#define VIRTIO_ISR_OFFSET(v) (v->isr_offset)
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/* notification */
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#define VIRTIO_NOTIFICATION_OFFSET(v) (v->notify_offset)
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#define _(t) \
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static_always_inline t \
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virtio_pci_reg_read_##t (virtio_if_t * vif, u32 offset) \
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{ \
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t val; \
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val = *(volatile t *) (vif->bar + offset); \
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return val; \
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}
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_(
u64
);
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_(
u32
);
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_(
u16
);
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_(
u8
);
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#undef _
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#define _(t) \
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static_always_inline void \
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virtio_pci_reg_write_##t (virtio_if_t * vif, u32 offset, t val) \
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{ \
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*(volatile t *) ((u8 *) vif->bar + offset) = val; \
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}
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_(
u64
);
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_(
u32
);
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_(
u16
);
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_(
u8
);
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#undef _
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
pci.h
virtio.h
u16
unsigned short u16
Definition:
types.h:57
u64
unsigned long u64
Definition:
types.h:89
u32
unsigned int u32
Definition:
types.h:88
u8
unsigned char u8
Definition:
types.h:56
src
vnet
devices
virtio
virtio_pci_modern.h
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