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Diffstat (limited to 'lib/librte_eal/common/eal_common_pci.c')
-rw-r--r--lib/librte_eal/common/eal_common_pci.c145
1 files changed, 145 insertions, 0 deletions
diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
new file mode 100644
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+++ b/lib/librte_eal/common/eal_common_pci.c
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+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2012 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.
+ *
+ * version: DPDK.L.1.2.3-3
+ */
+
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <sys/queue.h>
+
+#include <rte_interrupts.h>
+#include <rte_pci.h>
+#include <rte_per_lcore.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_tailq.h>
+#include <rte_eal.h>
+
+#include "eal_private.h"
+
+struct pci_driver_list driver_list;
+struct pci_device_list device_list;
+
+static struct rte_pci_addr *dev_blacklist = NULL;
+static unsigned dev_blacklist_size = 0;
+
+static int is_blacklisted(struct rte_pci_device *dev)
+{
+ struct rte_pci_addr *loc = &dev->addr;
+ unsigned i;
+
+ for (i = 0; i < dev_blacklist_size; i++) {
+ if ((loc->domain == dev_blacklist[i].domain) &&
+ (loc->bus == dev_blacklist[i].bus) &&
+ (loc->devid == dev_blacklist[i].devid) &&
+ (loc->function == dev_blacklist[i].function)) {
+ return 1;
+ }
+ }
+
+ return 0; /* not in blacklist */
+}
+
+/*
+ * If vendor/device ID match, call the devinit() function of all
+ * registered driver for the given device. Return -1 if no driver is
+ * found for this device.
+ */
+static int
+pci_probe_all_drivers(struct rte_pci_device *dev)
+{
+ struct rte_pci_driver *dr = NULL;
+
+ TAILQ_FOREACH(dr, &driver_list, next) {
+ if (is_blacklisted(dev))
+ return -1;
+ if (rte_eal_pci_probe_one_driver(dr, dev) == 0)
+ return 0;
+ }
+ return -1;
+}
+
+/*
+ * Scan the content of the PCI bus, and call the devinit() function for
+ * all registered drivers that have a matching entry in its id_table
+ * for discovered devices.
+ */
+int
+rte_eal_pci_probe(void)
+{
+ struct rte_pci_device *dev = NULL;
+
+ TAILQ_FOREACH(dev, &device_list, next)
+ pci_probe_all_drivers(dev);
+
+ return 0;
+}
+
+/* dump one device */
+static int
+pci_dump_one_device(struct rte_pci_device *dev)
+{
+ printf(PCI_PRI_FMT, dev->addr.domain, dev->addr.bus,
+ dev->addr.devid, dev->addr.function);
+ printf(" - vendor:%x device:%x\n", dev->id.vendor_id,
+ dev->id.device_id);
+ printf(" %16.16"PRIx64" %16.16"PRIx64"\n",
+ dev->mem_resource.phys_addr, dev->mem_resource.len);
+ return 0;
+}
+
+/* dump devices on the bus */
+void
+rte_eal_pci_dump(void)
+{
+ struct rte_pci_device *dev = NULL;
+
+ TAILQ_FOREACH(dev, &device_list, next) {
+ pci_dump_one_device(dev);
+ }
+}
+
+/* register a driver */
+void
+rte_eal_pci_register(struct rte_pci_driver *driver)
+{
+ TAILQ_INSERT_TAIL(&driver_list, driver, next);
+}
+
+void
+rte_eal_pci_set_blacklist(struct rte_pci_addr *blacklist, unsigned size)
+{
+ dev_blacklist = blacklist;
+ dev_blacklist_size = size;
+}