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/*
* 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.
*/
/*
* unix/pci.h: Linux specific pci state
*
* Copyright (c) 2008 Eliot Dresselhaus
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef included_unix_pci_h
#define included_unix_pci_h
#include <vlib/pci/pci.h>
typedef struct {
/* /sys/bus/pci/devices/... directory name for this device. */
u8 * dev_dir_name;
/* Resource file descriptors. */
int * resource_fds;
/* File descriptor for config space read/write. */
int config_fd;
/* PCI bus address for this devices parsed from /sys/bus/pci/devices name. */
pci_bus_address_t bus_address;
/* File descriptor for /dev/uio%d */
int uio_fd;
/* Minor device for uio device. */
u32 uio_minor;
/* Index given by unix_file_add. */
u32 unix_file_index;
/* Input node to handle interrupts for this device. */
u32 device_input_node_index;
/* Node runtime will be a bitmap of device indices with pending interrupts. */
u32 device_index;
} linux_pci_device_t;
/* Pool of PCI devices. */
typedef struct {
vlib_main_t * vlib_main;
linux_pci_device_t * pci_devices;
} linux_pci_main_t;
extern linux_pci_main_t linux_pci_main;
always_inline linux_pci_device_t *
pci_dev_for_linux (pci_device_t * dev)
{
linux_pci_main_t * pm = &linux_pci_main;
return pool_elt_at_index (pm->pci_devices, dev->os_handle);
}
/* Call to allocate/initialize the pci subsystem.
This is not an init function so that users can explicitly enable
pci only when it's needed. */
clib_error_t * pci_bus_init (vlib_main_t * vm);
#endif /* included_unix_pci_h */
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