c3148b1be8
Type: refactor Change-Id: I5235bf3e9aff58af6ba2c14e8c6529c4fc9ec86c Signed-off-by: Damjan Marion <damarion@cisco.com>
290 lines
10 KiB
C
290 lines
10 KiB
C
/*
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* Copyright (c) 2016 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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/*
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* pci.h: PCI definitions.
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*
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* Copyright (c) 2008 Eliot Dresselhaus
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef included_vlib_pci_h
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#define included_vlib_pci_h
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#include <vlib/vlib.h>
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#include <vlib/pci/pci_config.h>
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typedef CLIB_PACKED (union
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{
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struct
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{
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u16 domain;
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u8 bus;
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u8 slot: 5;
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u8 function:3;
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};
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u32 as_u32;
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}) vlib_pci_addr_t;
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typedef struct vlib_pci_device_info
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{
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u32 flags;
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#define VLIB_PCI_DEVICE_INFO_F_NOIOMMU (1 << 0);
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/* addr */
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vlib_pci_addr_t addr;
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/* Numa Node */
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int numa_node;
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/* Device data */
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u16 device_class;
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u16 vendor_id;
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u16 device_id;
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u8 revision;
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/* Vital Product Data */
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u8 *product_name;
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u8 *vpd_r;
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u8 *vpd_w;
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/* Driver name */
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u8 *driver_name;
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/* First 64 bytes of configuration space. */
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vlib_pci_config_t config;
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/* IOMMU Group */
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int iommu_group;
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} vlib_pci_device_info_t;
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typedef u32 vlib_pci_dev_handle_t;
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vlib_pci_device_info_t *vlib_pci_get_device_info (vlib_main_t *vm,
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vlib_pci_addr_t *addr,
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clib_error_t **error);
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clib_error_t *vlib_pci_get_device_root_bus (vlib_pci_addr_t *addr,
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vlib_pci_addr_t *root_bus);
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vlib_pci_addr_t *vlib_pci_get_all_dev_addrs ();
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vlib_pci_addr_t *vlib_pci_get_addr (vlib_main_t * vm,
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vlib_pci_dev_handle_t h);
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u32 vlib_pci_get_numa_node (vlib_main_t * vm, vlib_pci_dev_handle_t h);
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u32 vlib_pci_get_num_msix_interrupts (vlib_main_t * vm,
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vlib_pci_dev_handle_t h);
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uword vlib_pci_get_private_data (vlib_main_t * vm, vlib_pci_dev_handle_t h);
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void vlib_pci_set_private_data (vlib_main_t * vm, vlib_pci_dev_handle_t h,
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uword private_data);
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static inline void
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vlib_pci_free_device_info (vlib_pci_device_info_t * di)
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{
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if (!di)
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return;
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vec_free (di->product_name);
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vec_free (di->vpd_r);
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vec_free (di->vpd_w);
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vec_free (di->driver_name);
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clib_mem_free (di);
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}
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typedef struct
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{
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u16 vendor_id, device_id;
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} pci_device_id_t;
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#define PCI_DEVICE_IDS(...) \
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(pci_device_id_t[]) \
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{ \
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__VA_ARGS__, {} \
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}
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typedef void (pci_intx_handler_function_t) (vlib_main_t * vm,
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vlib_pci_dev_handle_t handle);
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typedef void (pci_msix_handler_function_t) (vlib_main_t * vm,
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vlib_pci_dev_handle_t handle,
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u16 line);
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typedef struct _pci_device_registration
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{
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/* Driver init function. */
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clib_error_t *(*init_function) (vlib_main_t * vm,
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vlib_pci_dev_handle_t handle);
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/* Interrupt handler */
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pci_intx_handler_function_t *interrupt_handler;
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/* List of registrations */
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struct _pci_device_registration *next_registration;
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/* Vendor/device ids supported by this driver. */
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pci_device_id_t supported_devices[];
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} pci_device_registration_t;
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/* Pool of PCI devices. */
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typedef struct
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{
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vlib_main_t *vlib_main;
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pci_device_registration_t *pci_device_registrations;
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/* logging */
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vlib_log_class_t log_default;
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} vlib_pci_main_t;
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extern vlib_pci_main_t pci_main;
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#define PCI_REGISTER_DEVICE(x,...) \
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__VA_ARGS__ pci_device_registration_t x; \
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static void __vlib_add_pci_device_registration_##x (void) \
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__attribute__((__constructor__)) ; \
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static void __vlib_add_pci_device_registration_##x (void) \
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{ \
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vlib_pci_main_t * pm = &pci_main; \
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x.next_registration = pm->pci_device_registrations; \
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pm->pci_device_registrations = &x; \
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} \
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static void __vlib_rm_pci_device_registration_##x (void) \
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__attribute__((__destructor__)) ; \
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static void __vlib_rm_pci_device_registration_##x (void) \
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{ \
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vlib_pci_main_t * pm = &pci_main; \
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VLIB_REMOVE_FROM_LINKED_LIST (pm->pci_device_registrations, \
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&x, next_registration); \
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} \
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__VA_ARGS__ pci_device_registration_t x
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clib_error_t *vlib_pci_bind_to_uio (vlib_main_t *vm, vlib_pci_addr_t *addr,
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char *uio_driver_name, int force);
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/* Configuration space read/write. */
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clib_error_t *vlib_pci_read_write_config (vlib_main_t * vm,
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vlib_pci_dev_handle_t handle,
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vlib_read_or_write_t read_or_write,
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uword address, void *data,
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u32 n_bytes);
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/* io space read/write. */
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clib_error_t *vlib_pci_read_write_io (vlib_main_t * vm,
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vlib_pci_dev_handle_t handle,
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vlib_read_or_write_t read_or_write,
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uword address, void *data, u32 n_bytes);
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#define _(t, x) \
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static inline clib_error_t *vlib_pci_read_##x##_##t ( \
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vlib_main_t *vm, vlib_pci_dev_handle_t h, uword address, t *data) \
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{ \
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return vlib_pci_read_write_##x (vm, h, VLIB_READ, address, data, \
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sizeof (data[0])); \
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} \
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static inline clib_error_t *vlib_pci_write_##x##_##t ( \
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vlib_main_t *vm, vlib_pci_dev_handle_t h, uword address, t *data) \
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{ \
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return vlib_pci_read_write_##x (vm, h, VLIB_WRITE, address, data, \
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sizeof (data[0])); \
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}
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_(u32, config);
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_(u16, config);
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_(u8, config);
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_(u32, io);
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_(u16, io);
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_(u8, io);
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#undef _
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clib_error_t *vlib_pci_device_open (vlib_main_t * vm, vlib_pci_addr_t * addr,
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pci_device_id_t ids[],
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vlib_pci_dev_handle_t * handle);
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void vlib_pci_device_close (vlib_main_t * vm, vlib_pci_dev_handle_t h);
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clib_error_t *vlib_pci_map_region (vlib_main_t * vm, vlib_pci_dev_handle_t h,
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u32 resource, void **result);
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clib_error_t *vlib_pci_map_region_fixed (vlib_main_t * vm,
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vlib_pci_dev_handle_t h,
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u32 resource, u8 * addr,
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void **result);
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clib_error_t *vlib_pci_io_region (vlib_main_t * vm, vlib_pci_dev_handle_t h,
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u32 resource);
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clib_error_t *vlib_pci_register_intx_handler (vlib_main_t * vm,
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vlib_pci_dev_handle_t h,
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pci_intx_handler_function_t *
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intx_handler);
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clib_error_t *vlib_pci_unregister_intx_handler (vlib_main_t *vm,
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vlib_pci_dev_handle_t h);
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clib_error_t *vlib_pci_register_msix_handler (vlib_main_t * vm,
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vlib_pci_dev_handle_t h,
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u32 start, u32 count,
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pci_msix_handler_function_t *
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msix_handler);
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clib_error_t *vlib_pci_unregister_msix_handler (vlib_main_t *vm,
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vlib_pci_dev_handle_t h,
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u32 start, u32 count);
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clib_error_t *vlib_pci_enable_msix_irq (vlib_main_t * vm,
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vlib_pci_dev_handle_t h, u16 start,
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u16 count);
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clib_error_t *vlib_pci_disable_msix_irq (vlib_main_t * vm,
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vlib_pci_dev_handle_t h, u16 start,
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u16 count);
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clib_error_t *vlib_pci_map_dma (vlib_main_t * vm, vlib_pci_dev_handle_t h,
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void *ptr);
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uword vlib_pci_get_msix_file_index (vlib_main_t * vm, vlib_pci_dev_handle_t h,
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u16 index);
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int vlib_pci_supports_virtual_addr_dma (vlib_main_t * vm,
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vlib_pci_dev_handle_t h);
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clib_error_t *vlib_pci_intr_enable (vlib_main_t *, vlib_pci_dev_handle_t);
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clib_error_t *vlib_pci_intr_disable (vlib_main_t *, vlib_pci_dev_handle_t);
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clib_error_t *vlib_pci_bus_master_enable (vlib_main_t *,
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vlib_pci_dev_handle_t);
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clib_error_t *vlib_pci_bus_master_disable (vlib_main_t *,
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vlib_pci_dev_handle_t);
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clib_error_t *vlib_pci_function_level_reset (vlib_main_t *,
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vlib_pci_dev_handle_t);
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unformat_function_t unformat_vlib_pci_addr;
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format_function_t format_vlib_pci_addr;
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format_function_t format_vlib_pci_link_speed;
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format_function_t format_vlib_pci_link_speed_cap;
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format_function_t format_vlib_pci_link_port;
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format_function_t format_vlib_pci_vpd;
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format_function_t format_vlib_pci_log;
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#endif /* included_vlib_pci_h */
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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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*/
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