From: Intel <intel.com>
Date: Mon, 3 Jun 2013 00:00:00 +0000 (+0000)
Subject: pci: store numa_node per device
X-Git-Tag: spdx-start~11235
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=b8539d50c560e53704680a38cdd32d3c39a23b49;p=dpdk.git

pci: store numa_node per device

Signed-off-by: Intel
---

diff --git a/lib/librte_eal/common/include/rte_pci.h b/lib/librte_eal/common/include/rte_pci.h
index 2235acb1bf..1314d20f20 100644
--- a/lib/librte_eal/common/include/rte_pci.h
+++ b/lib/librte_eal/common/include/rte_pci.h
@@ -143,6 +143,7 @@ struct rte_pci_device {
 	struct rte_intr_handle intr_handle;     /**< Interrupt handle */
 	const struct rte_pci_driver *driver;    /**< Associated driver */
 	uint16_t max_vfs;                       /**< sriov enable if not zero */
+	int numa_node;                          /**< NUMA node connection */
 	unsigned int blacklisted:1;             /**< Device is blacklisted */
 };
 
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci.c b/lib/librte_eal/linuxapp/eal/eal_pci.c
index de975ad83f..063a070db9 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci.c
@@ -774,6 +774,20 @@ pci_scan_one(const char *dirname, uint16_t domain, uint8_t bus,
 		dev->max_vfs = (uint16_t)tmp;
 	}
 
+	/* get numa node */
+	rte_snprintf(filename, sizeof(filename), "%s/numa_node",
+		 dirname);
+	if (access(filename, R_OK) != 0) {
+		/* if no NUMA support just set node to 0 */
+		dev->numa_node = -1;
+	} else {
+		if (eal_parse_sysfs_value(filename, &tmp) < 0) {
+			free(dev);
+			return -1;
+		}
+		dev->numa_node = tmp;
+	}
+
 	/* parse resources */
 	rte_snprintf(filename, sizeof(filename), "%s/resource", dirname);
 	if (pci_parse_sysfs_resource(filename, dev) < 0) {
@@ -923,6 +937,12 @@ rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr, struct rte_pci_device *d
 				id_table->subsystem_device_id != PCI_ANY_ID)
 			continue;
 
+		struct rte_pci_addr *loc = &dev->addr;
+
+		RTE_LOG(DEBUG, EAL, "PCI device "PCI_PRI_FMT" on NUMA socket %i\n",
+				loc->domain, loc->bus, loc->devid, loc->function,
+				dev->numa_node);
+
 		RTE_LOG(DEBUG, EAL, "  probe driver: %x:%x %s\n", dev->id.vendor_id,
 				dev->id.device_id, dr->name);