-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
*/
#include <ctype.h>
#include <rte_launch.h>
#include <rte_memory.h>
#include <rte_eal.h>
-#include <rte_eal_memconfig.h>
#include <rte_per_lcore.h>
#include <rte_lcore.h>
#include <rte_malloc.h>
/**
* @file
- * PCI probing under linux
+ * PCI probing under BSD
*
* This code is used to simulate a PCI probe by parsing information in
* sysfs. Moreover, when a registered driver matches a device, the
* kernel driver currently using it is unloaded and replaced by
- * igb_uio module, which is a very minimal userland driver for Intel
+ * nic_uio module, which is a very minimal userland driver for Intel
* network card, only providing access to PCI BAR to applications, and
* enabling bus master.
*/
/* try mapping the NIC resources */
switch (dev->kdrv) {
- case RTE_KDRV_NIC_UIO:
+ case RTE_PCI_KDRV_NIC_UIO:
/* map resources for devices that use uio */
ret = pci_uio_map_resource(dev);
break;
{
/* try unmapping the NIC resources */
switch (dev->kdrv) {
- case RTE_KDRV_NIC_UIO:
+ case RTE_PCI_KDRV_NIC_UIO:
/* unmap resources for devices that use uio */
pci_uio_unmap_resource(dev);
break;
goto error;
}
- snprintf((*uio_res)->path, sizeof((*uio_res)->path), "%s", devname);
+ strlcpy((*uio_res)->path, devname, sizeof((*uio_res)->path));
memcpy(&(*uio_res)->pci_addr, &dev->addr, sizeof((*uio_res)->pci_addr));
return 0;
mapaddr = pci_map_resource(NULL, fd, (off_t)offset,
(size_t)dev->mem_resource[res_idx].len, 0);
close(fd);
- if (mapaddr == MAP_FAILED)
+ if (mapaddr == NULL)
goto error;
maps[map_idx].phaddr = dev->mem_resource[res_idx].phys_addr;
}
memset(dev, 0, sizeof(*dev));
+ dev->device.bus = &rte_pci_bus.bus;
+
dev->addr.domain = conf->pc_sel.pc_domain;
dev->addr.bus = conf->pc_sel.pc_bus;
dev->addr.devid = conf->pc_sel.pc_dev;
pci_name_set(dev);
/* FreeBSD has only one pass through driver */
- dev->kdrv = RTE_KDRV_NIC_UIO;
+ dev->kdrv = RTE_PCI_KDRV_NIC_UIO;
/* parse resources */
switch (conf->pc_hdr & PCIM_HDRTYPE) {
.match_buf_len = sizeof(matches),
.matches = &matches[0],
};
+ struct rte_pci_addr pci_addr;
/* for debug purposes, PCI can be disabled */
if (!rte_eal_has_pci())
goto error;
}
- for (i = 0; i < conf_io.num_matches; i++)
+ for (i = 0; i < conf_io.num_matches; i++) {
+ pci_addr.domain = matches[i].pc_sel.pc_domain;
+ pci_addr.bus = matches[i].pc_sel.pc_bus;
+ pci_addr.devid = matches[i].pc_sel.pc_dev;
+ pci_addr.function = matches[i].pc_sel.pc_func;
+
+ if (rte_pci_ignore_device(&pci_addr))
+ continue;
+
if (pci_scan_one(fd, &matches[i]) < 0)
goto error;
+ }
dev_count += conf_io.num_matches;
} while(conf_io.status == PCI_GETCONF_MORE_DEVS);
return -1;
}
-/*
- * Get iommu class of PCI devices on the bus.
- */
-enum rte_iova_mode
-rte_pci_get_iommu_class(void)
+bool
+pci_device_iommu_support_va(__rte_unused const struct rte_pci_device *dev)
{
- /* Supports only RTE_KDRV_NIC_UIO */
- return RTE_IOVA_PA;
+ return false;
}
-int
-pci_update_device(const struct rte_pci_addr *addr)
+enum rte_iova_mode
+pci_device_iova_mode(const struct rte_pci_driver *pdrv __rte_unused,
+ const struct rte_pci_device *pdev)
{
- int fd;
- struct pci_conf matches[2];
- struct pci_match_conf match = {
- .pc_sel = {
- .pc_domain = addr->domain,
- .pc_bus = addr->bus,
- .pc_dev = addr->devid,
- .pc_func = addr->function,
- },
- };
- struct pci_conf_io conf_io = {
- .pat_buf_len = 0,
- .num_patterns = 1,
- .patterns = &match,
- .match_buf_len = sizeof(matches),
- .matches = &matches[0],
- };
-
- fd = open("/dev/pci", O_RDONLY);
- if (fd < 0) {
- RTE_LOG(ERR, EAL, "%s(): error opening /dev/pci\n", __func__);
- goto error;
- }
-
- if (ioctl(fd, PCIOCGETCONF, &conf_io) < 0) {
- RTE_LOG(ERR, EAL, "%s(): error with ioctl on /dev/pci: %s\n",
- __func__, strerror(errno));
- goto error;
- }
-
- if (conf_io.num_matches != 1)
- goto error;
-
- if (pci_scan_one(fd, &matches[0]) < 0)
- goto error;
+ if (pdev->kdrv != RTE_PCI_KDRV_NIC_UIO)
+ RTE_LOG(DEBUG, EAL, "Unsupported kernel driver? Defaulting to IOVA as 'PA'\n");
- close(fd);
-
- return 0;
-
-error:
- if (fd >= 0)
- close(fd);
- return -1;
+ return RTE_IOVA_PA;
}
/* Read PCI config space. */
{
int fd = -1;
int size;
+ /* Copy Linux implementation's behaviour */
+ const int return_len = len;
struct pci_io pi = {
.pi_sel = {
.pc_domain = dev->addr.domain,
}
close(fd);
- return 0;
+ return return_len;
error:
if (fd >= 0)
switch (dev->kdrv) {
#if defined(RTE_ARCH_X86)
- case RTE_KDRV_NIC_UIO:
+ case RTE_PCI_KDRV_NIC_UIO:
+ if (rte_eal_iopl_init() != 0) {
+ RTE_LOG(ERR, EAL, "%s(): insufficient ioport permissions for PCI device %s\n",
+ __func__, dev->name);
+ return -1;
+ }
if ((uintptr_t) dev->mem_resource[bar].addr <= UINT16_MAX) {
p->base = (uintptr_t)dev->mem_resource[bar].addr;
ret = 0;
void *data, size_t len, off_t offset)
{
switch (p->dev->kdrv) {
- case RTE_KDRV_NIC_UIO:
+ case RTE_PCI_KDRV_NIC_UIO:
pci_uio_ioport_read(p, data, len, offset);
break;
default:
const void *data, size_t len, off_t offset)
{
switch (p->dev->kdrv) {
- case RTE_KDRV_NIC_UIO:
+ case RTE_PCI_KDRV_NIC_UIO:
pci_uio_ioport_write(p, data, len, offset);
break;
default:
switch (p->dev->kdrv) {
#if defined(RTE_ARCH_X86)
- case RTE_KDRV_NIC_UIO:
+ case RTE_PCI_KDRV_NIC_UIO:
ret = 0;
break;
#endif
git.droids-corp.org / dpdk.git / blobdiff