[dpdk-dev] [PATCH] pci: limit default numa node to used devices

[Sergio Gonzalez Monroy]

Commit 8a04cb612589 ("pci: set default numa node for broken systems")
added logic to default to NUMA node 0 when sysfs numa_node information
was wrong or not available.

Unfortunately there are many devices with wrong NUMA node information
that DPDK does not care about but still show warnings for them.

Instead, only check for invalid NUMA node information for devices
managed by the DPDK.

Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy at intel.com>
---
 lib/librte_eal/common/eal_common_pci.c |  5 +++++
 lib/librte_eal/linuxapp/eal/eal_pci.c  | 11 +++--------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
index eaa041e..52fd38c 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -226,6 +226,11 @@ rte_pci_probe_one_driver(struct rte_pci_driver *dr,
 		return 1;
 	}
 
+	if (dev->device.numa_node < 0) {
+		RTE_LOG(WARNING, EAL, "  Invalid NUMA socket, default to 0\n");
+		dev->device.numa_node = 0;
+	}
+
 	RTE_LOG(INFO, EAL, "  probe driver: %x:%x %s\n", dev->id.vendor_id,
 		dev->id.device_id, dr->driver.name);
 
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci.c b/lib/librte_eal/linuxapp/eal/eal_pci.c
index 556ae2c..2041d5f 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci.c
@@ -314,15 +314,10 @@ pci_scan_one(const char *dirname, const struct rte_pci_addr *addr)
 	snprintf(filename, sizeof(filename), "%s/numa_node",
 		 dirname);
 
-	if (eal_parse_sysfs_value(filename, &tmp) == 0 &&
-		tmp < RTE_MAX_NUMA_NODES)
+	if (eal_parse_sysfs_value(filename, &tmp) == 0)
 		dev->device.numa_node = tmp;
-	else {
-		RTE_LOG(WARNING, EAL,
-			"numa_node is invalid or not present. "
-			"Set it 0 as default\n");
-		dev->device.numa_node = 0;
-	}
+	else
+		dev->device.numa_node = -1;
 
 	pci_name_set(dev);
 
-- 
2.9.4