1 files changed, 0 insertions, 722 deletions

diff --git a/lib/librte_eal/linuxapp/eal/eal_pci.c b/lib/librte_eal/linuxapp/eal/eal_pci.c
deleted file mode 100644
index 8951ce74..00000000
--- a/lib/librte_eal/linuxapp/eal/eal_pci.c
+++ /dev/null
@@ -1,722 +0,0 @@
-/*-
- *   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.
- */
-
-#include <string.h>
-#include <dirent.h>
-
-#include <rte_log.h>
-#include <rte_bus.h>
-#include <rte_pci.h>
-#include <rte_eal_memconfig.h>
-#include <rte_malloc.h>
-#include <rte_devargs.h>
-#include <rte_memcpy.h>
-
-#include "eal_filesystem.h"
-#include "eal_private.h"
-#include "eal_pci_init.h"
-
-/**
- * @file
- * PCI probing under linux
- *
- * This code is used to simulate a PCI probe by parsing information in sysfs.
- * When a registered device matches a driver, it is then initialized with
- * IGB_UIO driver (or doesn't initialize, if the device wasn't bound to it).
- */
-
-extern struct rte_pci_bus rte_pci_bus;
-
-static int
-pci_get_kernel_driver_by_path(const char *filename, char *dri_name)
-{
-	int count;
-	char path[PATH_MAX];
-	char *name;
-
-	if (!filename || !dri_name)
-		return -1;
-
-	count = readlink(filename, path, PATH_MAX);
-	if (count >= PATH_MAX)
-		return -1;
-
-	/* For device does not have a driver */
-	if (count < 0)
-		return 1;
-
-	path[count] = '\0';
-
-	name = strrchr(path, '/');
-	if (name) {
-		strncpy(dri_name, name + 1, strlen(name + 1) + 1);
-		return 0;
-	}
-
-	return -1;
-}
-
-/* Map pci device */
-int
-rte_pci_map_device(struct rte_pci_device *dev)
-{
-	int ret = -1;
-
-	/* try mapping the NIC resources using VFIO if it exists */
-	switch (dev->kdrv) {
-	case RTE_KDRV_VFIO:
-#ifdef VFIO_PRESENT
-		if (pci_vfio_is_enabled())
-			ret = pci_vfio_map_resource(dev);
-#endif
-		break;
-	case RTE_KDRV_IGB_UIO:
-	case RTE_KDRV_UIO_GENERIC:
-		if (rte_eal_using_phys_addrs()) {
-			/* map resources for devices that use uio */
-			ret = pci_uio_map_resource(dev);
-		}
-		break;
-	default:
-		RTE_LOG(DEBUG, EAL,
-			"  Not managed by a supported kernel driver, skipped\n");
-		ret = 1;
-		break;
-	}
-
-	return ret;
-}
-
-/* Unmap pci device */
-void
-rte_pci_unmap_device(struct rte_pci_device *dev)
-{
-	/* try unmapping the NIC resources using VFIO if it exists */
-	switch (dev->kdrv) {
-	case RTE_KDRV_VFIO:
-#ifdef VFIO_PRESENT
-		if (pci_vfio_is_enabled())
-			pci_vfio_unmap_resource(dev);
-#endif
-		break;
-	case RTE_KDRV_IGB_UIO:
-	case RTE_KDRV_UIO_GENERIC:
-		/* unmap resources for devices that use uio */
-		pci_uio_unmap_resource(dev);
-		break;
-	default:
-		RTE_LOG(DEBUG, EAL,
-			"  Not managed by a supported kernel driver, skipped\n");
-		break;
-	}
-}
-
-void *
-pci_find_max_end_va(void)
-{
-	const struct rte_memseg *seg = rte_eal_get_physmem_layout();
-	const struct rte_memseg *last = seg;
-	unsigned i = 0;
-
-	for (i = 0; i < RTE_MAX_MEMSEG; i++, seg++) {
-		if (seg->addr == NULL)
-			break;
-
-		if (seg->addr > last->addr)
-			last = seg;
-
-	}
-	return RTE_PTR_ADD(last->addr, last->len);
-}
-
-/* parse one line of the "resource" sysfs file (note that the 'line'
- * string is modified)
- */
-int
-pci_parse_one_sysfs_resource(char *line, size_t len, uint64_t *phys_addr,
-	uint64_t *end_addr, uint64_t *flags)
-{
-	union pci_resource_info {
-		struct {
-			char *phys_addr;
-			char *end_addr;
-			char *flags;
-		};
-		char *ptrs[PCI_RESOURCE_FMT_NVAL];
-	} res_info;
-
-	if (rte_strsplit(line, len, res_info.ptrs, 3, ' ') != 3) {
-		RTE_LOG(ERR, EAL,
-			"%s(): bad resource format\n", __func__);
-		return -1;
-	}
-	errno = 0;
-	*phys_addr = strtoull(res_info.phys_addr, NULL, 16);
-	*end_addr = strtoull(res_info.end_addr, NULL, 16);
-	*flags = strtoull(res_info.flags, NULL, 16);
-	if (errno != 0) {
-		RTE_LOG(ERR, EAL,
-			"%s(): bad resource format\n", __func__);
-		return -1;
-	}
-
-	return 0;
-}
-
-/* parse the "resource" sysfs file */
-static int
-pci_parse_sysfs_resource(const char *filename, struct rte_pci_device *dev)
-{
-	FILE *f;
-	char buf[BUFSIZ];
-	int i;
-	uint64_t phys_addr, end_addr, flags;
-
-	f = fopen(filename, "r");
-	if (f == NULL) {
-		RTE_LOG(ERR, EAL, "Cannot open sysfs resource\n");
-		return -1;
-	}
-
-	for (i = 0; i<PCI_MAX_RESOURCE; i++) {
-
-		if (fgets(buf, sizeof(buf), f) == NULL) {
-			RTE_LOG(ERR, EAL,
-				"%s(): cannot read resource\n", __func__);
-			goto error;
-		}
-		if (pci_parse_one_sysfs_resource(buf, sizeof(buf), &phys_addr,
-				&end_addr, &flags) < 0)
-			goto error;
-
-		if (flags & IORESOURCE_MEM) {
-			dev->mem_resource[i].phys_addr = phys_addr;
-			dev->mem_resource[i].len = end_addr - phys_addr + 1;
-			/* not mapped for now */
-			dev->mem_resource[i].addr = NULL;
-		}
-	}
-	fclose(f);
-	return 0;
-
-error:
-	fclose(f);
-	return -1;
-}
-
-/* Scan one pci sysfs entry, and fill the devices list from it. */
-static int
-pci_scan_one(const char *dirname, const struct rte_pci_addr *addr)
-{
-	char filename[PATH_MAX];
-	unsigned long tmp;
-	struct rte_pci_device *dev;
-	char driver[PATH_MAX];
-	int ret;
-
-	dev = malloc(sizeof(*dev));
-	if (dev == NULL)
-		return -1;
-
-	memset(dev, 0, sizeof(*dev));
-	dev->addr = *addr;
-
-	/* get vendor id */
-	snprintf(filename, sizeof(filename), "%s/vendor", dirname);
-	if (eal_parse_sysfs_value(filename, &tmp) < 0) {
-		free(dev);
-		return -1;
-	}
-	dev->id.vendor_id = (uint16_t)tmp;
-
-	/* get device id */
-	snprintf(filename, sizeof(filename), "%s/device", dirname);
-	if (eal_parse_sysfs_value(filename, &tmp) < 0) {
-		free(dev);
-		return -1;
-	}
-	dev->id.device_id = (uint16_t)tmp;
-
-	/* get subsystem_vendor id */
-	snprintf(filename, sizeof(filename), "%s/subsystem_vendor",
-		 dirname);
-	if (eal_parse_sysfs_value(filename, &tmp) < 0) {
-		free(dev);
-		return -1;
-	}
-	dev->id.subsystem_vendor_id = (uint16_t)tmp;
-
-	/* get subsystem_device id */
-	snprintf(filename, sizeof(filename), "%s/subsystem_device",
-		 dirname);
-	if (eal_parse_sysfs_value(filename, &tmp) < 0) {
-		free(dev);
-		return -1;
-	}
-	dev->id.subsystem_device_id = (uint16_t)tmp;
-
-	/* get class_id */
-	snprintf(filename, sizeof(filename), "%s/class",
-		 dirname);
-	if (eal_parse_sysfs_value(filename, &tmp) < 0) {
-		free(dev);
-		return -1;
-	}
-	/* the least 24 bits are valid: class, subclass, program interface */
-	dev->id.class_id = (uint32_t)tmp & RTE_CLASS_ANY_ID;
-
-	/* get max_vfs */
-	dev->max_vfs = 0;
-	snprintf(filename, sizeof(filename), "%s/max_vfs", dirname);
-	if (!access(filename, F_OK) &&
-	    eal_parse_sysfs_value(filename, &tmp) == 0)
-		dev->max_vfs = (uint16_t)tmp;
-	else {
-		/* for non igb_uio driver, need kernel version >= 3.8 */
-		snprintf(filename, sizeof(filename),
-			 "%s/sriov_numvfs", dirname);
-		if (!access(filename, F_OK) &&
-		    eal_parse_sysfs_value(filename, &tmp) == 0)
-			dev->max_vfs = (uint16_t)tmp;
-	}
-
-	/* get numa node, default to 0 if not present */
-	snprintf(filename, sizeof(filename), "%s/numa_node",
-		 dirname);
-
-	if (access(filename, F_OK) != -1) {
-		if (eal_parse_sysfs_value(filename, &tmp) == 0)
-			dev->device.numa_node = tmp;
-		else
-			dev->device.numa_node = -1;
-	} else {
-		dev->device.numa_node = 0;
-	}
-
-	pci_name_set(dev);
-
-	/* parse resources */
-	snprintf(filename, sizeof(filename), "%s/resource", dirname);
-	if (pci_parse_sysfs_resource(filename, dev) < 0) {
-		RTE_LOG(ERR, EAL, "%s(): cannot parse resource\n", __func__);
-		free(dev);
-		return -1;
-	}
-
-	/* parse driver */
-	snprintf(filename, sizeof(filename), "%s/driver", dirname);
-	ret = pci_get_kernel_driver_by_path(filename, driver);
-	if (ret < 0) {
-		RTE_LOG(ERR, EAL, "Fail to get kernel driver\n");
-		free(dev);
-		return -1;
-	}
-
-	if (!ret) {
-		if (!strcmp(driver, "vfio-pci"))
-			dev->kdrv = RTE_KDRV_VFIO;
-		else if (!strcmp(driver, "igb_uio"))
-			dev->kdrv = RTE_KDRV_IGB_UIO;
-		else if (!strcmp(driver, "uio_pci_generic"))
-			dev->kdrv = RTE_KDRV_UIO_GENERIC;
-		else
-			dev->kdrv = RTE_KDRV_UNKNOWN;
-	} else
-		dev->kdrv = RTE_KDRV_NONE;
-
-	/* device is valid, add in list (sorted) */
-	if (TAILQ_EMPTY(&rte_pci_bus.device_list)) {
-		rte_pci_add_device(dev);
-	} else {
-		struct rte_pci_device *dev2;
-		int ret;
-
-		TAILQ_FOREACH(dev2, &rte_pci_bus.device_list, next) {
-			ret = rte_eal_compare_pci_addr(&dev->addr, &dev2->addr);
-			if (ret > 0)
-				continue;
-
-			if (ret < 0) {
-				rte_pci_insert_device(dev2, dev);
-			} else { /* already registered */
-				dev2->kdrv = dev->kdrv;
-				dev2->max_vfs = dev->max_vfs;
-				pci_name_set(dev2);
-				memmove(dev2->mem_resource, dev->mem_resource,
-					sizeof(dev->mem_resource));
-				free(dev);
-			}
-			return 0;
-		}
-
-		rte_pci_add_device(dev);
-	}
-
-	return 0;
-}
-
-int
-pci_update_device(const struct rte_pci_addr *addr)
-{
-	char filename[PATH_MAX];
-
-	snprintf(filename, sizeof(filename), "%s/" PCI_PRI_FMT,
-		 pci_get_sysfs_path(), addr->domain, addr->bus, addr->devid,
-		 addr->function);
-
-	return pci_scan_one(filename, addr);
-}
-
-/*
- * split up a pci address into its constituent parts.
- */
-static int
-parse_pci_addr_format(const char *buf, int bufsize, struct rte_pci_addr *addr)
-{
-	/* first split on ':' */
-	union splitaddr {
-		struct {
-			char *domain;
-			char *bus;
-			char *devid;
-			char *function;
-		};
-		char *str[PCI_FMT_NVAL]; /* last element-separator is "." not ":" */
-	} splitaddr;
-
-	char *buf_copy = strndup(buf, bufsize);
-	if (buf_copy == NULL)
-		return -1;
-
-	if (rte_strsplit(buf_copy, bufsize, splitaddr.str, PCI_FMT_NVAL, ':')
-			!= PCI_FMT_NVAL - 1)
-		goto error;
-	/* final split is on '.' between devid and function */
-	splitaddr.function = strchr(splitaddr.devid,'.');
-	if (splitaddr.function == NULL)
-		goto error;
-	*splitaddr.function++ = '\0';
-
-	/* now convert to int values */
-	errno = 0;
-	addr->domain = strtoul(splitaddr.domain, NULL, 16);
-	addr->bus = strtoul(splitaddr.bus, NULL, 16);
-	addr->devid = strtoul(splitaddr.devid, NULL, 16);
-	addr->function = strtoul(splitaddr.function, NULL, 10);
-	if (errno != 0)
-		goto error;
-
-	free(buf_copy); /* free the copy made with strdup */
-	return 0;
-error:
-	free(buf_copy);
-	return -1;
-}
-
-/*
- * Scan the content of the PCI bus, and the devices in the devices
- * list
- */
-int
-rte_pci_scan(void)
-{
-	struct dirent *e;
-	DIR *dir;
-	char dirname[PATH_MAX];
-	struct rte_pci_addr addr;
-
-	/* for debug purposes, PCI can be disabled */
-	if (internal_config.no_pci)
-		return 0;
-
-	dir = opendir(pci_get_sysfs_path());
-	if (dir == NULL) {
-		RTE_LOG(ERR, EAL, "%s(): opendir failed: %s\n",
-			__func__, strerror(errno));
-		return -1;
-	}
-
-	while ((e = readdir(dir)) != NULL) {
-		if (e->d_name[0] == '.')
-			continue;
-
-		if (parse_pci_addr_format(e->d_name, sizeof(e->d_name), &addr) != 0)
-			continue;
-
-		snprintf(dirname, sizeof(dirname), "%s/%s",
-				pci_get_sysfs_path(), e->d_name);
-
-		if (pci_scan_one(dirname, &addr) < 0)
-			goto error;
-	}
-	closedir(dir);
-	return 0;
-
-error:
-	closedir(dir);
-	return -1;
-}
-
-/* Read PCI config space. */
-int rte_pci_read_config(const struct rte_pci_device *device,
-		void *buf, size_t len, off_t offset)
-{
-	const struct rte_intr_handle *intr_handle = &device->intr_handle;
-
-	switch (intr_handle->type) {
-	case RTE_INTR_HANDLE_UIO:
-	case RTE_INTR_HANDLE_UIO_INTX:
-		return pci_uio_read_config(intr_handle, buf, len, offset);
-
-#ifdef VFIO_PRESENT
-	case RTE_INTR_HANDLE_VFIO_MSIX:
-	case RTE_INTR_HANDLE_VFIO_MSI:
-	case RTE_INTR_HANDLE_VFIO_LEGACY:
-		return pci_vfio_read_config(intr_handle, buf, len, offset);
-#endif
-	default:
-		RTE_LOG(ERR, EAL,
-			"Unknown handle type of fd %d\n",
-					intr_handle->fd);
-		return -1;
-	}
-}
-
-/* Write PCI config space. */
-int rte_pci_write_config(const struct rte_pci_device *device,
-		const void *buf, size_t len, off_t offset)
-{
-	const struct rte_intr_handle *intr_handle = &device->intr_handle;
-
-	switch (intr_handle->type) {
-	case RTE_INTR_HANDLE_UIO:
-	case RTE_INTR_HANDLE_UIO_INTX:
-		return pci_uio_write_config(intr_handle, buf, len, offset);
-
-#ifdef VFIO_PRESENT
-	case RTE_INTR_HANDLE_VFIO_MSIX:
-	case RTE_INTR_HANDLE_VFIO_MSI:
-	case RTE_INTR_HANDLE_VFIO_LEGACY:
-		return pci_vfio_write_config(intr_handle, buf, len, offset);
-#endif
-	default:
-		RTE_LOG(ERR, EAL,
-			"Unknown handle type of fd %d\n",
-					intr_handle->fd);
-		return -1;
-	}
-}
-
-#if defined(RTE_ARCH_X86)
-static int
-pci_ioport_map(struct rte_pci_device *dev, int bar __rte_unused,
-		struct rte_pci_ioport *p)
-{
-	uint16_t start, end;
-	FILE *fp;
-	char *line = NULL;
-	char pci_id[16];
-	int found = 0;
-	size_t linesz;
-
-	snprintf(pci_id, sizeof(pci_id), PCI_PRI_FMT,
-		 dev->addr.domain, dev->addr.bus,
-		 dev->addr.devid, dev->addr.function);
-
-	fp = fopen("/proc/ioports", "r");
-	if (fp == NULL) {
-		RTE_LOG(ERR, EAL, "%s(): can't open ioports\n", __func__);
-		return -1;
-	}
-
-	while (getdelim(&line, &linesz, '\n', fp) > 0) {
-		char *ptr = line;
-		char *left;
-		int n;
-
-		n = strcspn(ptr, ":");
-		ptr[n] = 0;
-		left = &ptr[n + 1];
-
-		while (*left && isspace(*left))
-			left++;
-
-		if (!strncmp(left, pci_id, strlen(pci_id))) {
-			found = 1;
-
-			while (*ptr && isspace(*ptr))
-				ptr++;
-
-			sscanf(ptr, "%04hx-%04hx", &start, &end);
-
-			break;
-		}
-	}
-
-	free(line);
-	fclose(fp);
-
-	if (!found)
-		return -1;
-
-	dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
-	p->base = start;
-	RTE_LOG(DEBUG, EAL, "PCI Port IO found start=0x%x\n", start);
-
-	return 0;
-}
-#endif
-
-int
-rte_pci_ioport_map(struct rte_pci_device *dev, int bar,
-		struct rte_pci_ioport *p)
-{
-	int ret = -1;
-
-	switch (dev->kdrv) {
-#ifdef VFIO_PRESENT
-	case RTE_KDRV_VFIO:
-		if (pci_vfio_is_enabled())
-			ret = pci_vfio_ioport_map(dev, bar, p);
-		break;
-#endif
-	case RTE_KDRV_IGB_UIO:
-		ret = pci_uio_ioport_map(dev, bar, p);
-		break;
-	case RTE_KDRV_UIO_GENERIC:
-#if defined(RTE_ARCH_X86)
-		ret = pci_ioport_map(dev, bar, p);
-#else
-		ret = pci_uio_ioport_map(dev, bar, p);
-#endif
-		break;
-	case RTE_KDRV_NONE:
-#if defined(RTE_ARCH_X86)
-		ret = pci_ioport_map(dev, bar, p);
-#endif
-		break;
-	default:
-		break;
-	}
-
-	if (!ret)
-		p->dev = dev;
-
-	return ret;
-}
-
-void
-rte_pci_ioport_read(struct rte_pci_ioport *p,
-		void *data, size_t len, off_t offset)
-{
-	switch (p->dev->kdrv) {
-#ifdef VFIO_PRESENT
-	case RTE_KDRV_VFIO:
-		pci_vfio_ioport_read(p, data, len, offset);
-		break;
-#endif
-	case RTE_KDRV_IGB_UIO:
-		pci_uio_ioport_read(p, data, len, offset);
-		break;
-	case RTE_KDRV_UIO_GENERIC:
-		pci_uio_ioport_read(p, data, len, offset);
-		break;
-	case RTE_KDRV_NONE:
-#if defined(RTE_ARCH_X86)
-		pci_uio_ioport_read(p, data, len, offset);
-#endif
-		break;
-	default:
-		break;
-	}
-}
-
-void
-rte_pci_ioport_write(struct rte_pci_ioport *p,
-		const void *data, size_t len, off_t offset)
-{
-	switch (p->dev->kdrv) {
-#ifdef VFIO_PRESENT
-	case RTE_KDRV_VFIO:
-		pci_vfio_ioport_write(p, data, len, offset);
-		break;
-#endif
-	case RTE_KDRV_IGB_UIO:
-		pci_uio_ioport_write(p, data, len, offset);
-		break;
-	case RTE_KDRV_UIO_GENERIC:
-		pci_uio_ioport_write(p, data, len, offset);
-		break;
-	case RTE_KDRV_NONE:
-#if defined(RTE_ARCH_X86)
-		pci_uio_ioport_write(p, data, len, offset);
-#endif
-		break;
-	default:
-		break;
-	}
-}
-
-int
-rte_pci_ioport_unmap(struct rte_pci_ioport *p)
-{
-	int ret = -1;
-
-	switch (p->dev->kdrv) {
-#ifdef VFIO_PRESENT
-	case RTE_KDRV_VFIO:
-		if (pci_vfio_is_enabled())
-			ret = pci_vfio_ioport_unmap(p);
-		break;
-#endif
-	case RTE_KDRV_IGB_UIO:
-		ret = pci_uio_ioport_unmap(p);
-		break;
-	case RTE_KDRV_UIO_GENERIC:
-#if defined(RTE_ARCH_X86)
-		ret = 0;
-#else
-		ret = pci_uio_ioport_unmap(p);
-#endif
-		break;
-	case RTE_KDRV_NONE:
-#if defined(RTE_ARCH_X86)
-		ret = 0;
-#endif
-		break;
-	default:
-		break;
-	}
-
-	return ret;
-}