From: Jan Blunck <jblunck@infradead.org>
Date: Fri, 30 Jun 2017 18:19:33 +0000 (+0200)
Subject: bus/pci: implement method to find device
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=9a58384b741af8bb2b6bef33850d2244ecb30e4e;p=dpdk.git

bus/pci: implement method to find device

Signed-off-by: Jan Blunck <jblunck@infradead.org>
---

diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
index 479c62d67a..e44975865f 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -485,10 +485,31 @@ rte_pci_remove_device(struct rte_pci_device *pci_dev)
 	TAILQ_REMOVE(&rte_pci_bus.device_list, pci_dev, next);
 }
 
+static struct rte_device *
+pci_find_device(const struct rte_device *start, rte_dev_cmp_t cmp,
+		const void *data)
+{
+	struct rte_pci_device *dev;
+	bool start_found = !start;
+
+	FOREACH_DEVICE_ON_PCIBUS(dev) {
+		if (!start_found) {
+			if (&dev->device == start)
+				start_found = 1;
+			continue;
+		}
+		if (cmp(&dev->device, data) == 0)
+			return &dev->device;
+	}
+
+	return NULL;
+}
+
 struct rte_pci_bus rte_pci_bus = {
 	.bus = {
 		.scan = rte_pci_scan,
 		.probe = rte_pci_probe,
+		.find_device = pci_find_device,
 	},
 	.device_list = TAILQ_HEAD_INITIALIZER(rte_pci_bus.device_list),
 	.driver_list = TAILQ_HEAD_INITIALIZER(rte_pci_bus.driver_list),