[dpdk-dev] [PATCH] ethdev: support PCI domains

[Sinan Kaya]

The current code is enumerating devices based on bus, device and function
pairs. This does not work well for architectures with multiple PCI
segments/domains. Multiple PCI devices will have the same BDF value but
different segment numbers (01:01:01.0 and 02:01:01.0) for instance.

Adding segment numbers to device naming so that we can uniquely identify
devices.

Signed-off-by: Sinan Kaya <okaya at codeaurora.org>
---
 lib/librte_ether/rte_ethdev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 0a6e3f1..929240f 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -226,7 +226,8 @@ rte_eth_dev_create_unique_device_name(char *name, size_t size,
 {
 	int ret;
 
-	ret = snprintf(name, size, "%d:%d.%d",
+	ret = snprintf(name, size, "%d:%d:%d.%d",
+			pci_dev->addr.domain,
 			pci_dev->addr.bus, pci_dev->addr.devid,
 			pci_dev->addr.function);
 	if (ret < 0)
-- 
1.8.2.1