ethdev: do not scan all PCI devices on attach

[dpdk.git] / lib / librte_eal / common / eal_common_pci.c

diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
index db8cba0..bef7ee8 100644 (file)
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -341,6 +341,12 @@ rte_eal_pci_probe_one(const struct rte_pci_addr *addr)
        if (addr == NULL)
                return -1;
 
+       /* update current pci device in global list, kernel bindings might have
+        * changed since last time we looked at it.
+        */
+       if (pci_update_device(addr) < 0)
+               goto err_return;
+
        TAILQ_FOREACH(dev, &pci_device_list, next) {
                if (rte_eal_compare_pci_addr(&dev->addr, addr))
                        continue;
@@ -353,9 +359,9 @@ rte_eal_pci_probe_one(const struct rte_pci_addr *addr)
        return -1;
 
 err_return:
-       RTE_LOG(WARNING, EAL, "Requested device " PCI_PRI_FMT
-                       " cannot be used\n", dev->addr.domain, dev->addr.bus,
-                       dev->addr.devid, dev->addr.function);
+       RTE_LOG(WARNING, EAL,
+               "Requested device " PCI_PRI_FMT " cannot be used\n",
+               addr->domain, addr->bus, addr->devid, addr->function);
        return -1;
 }