common/mlx5: get PCI device address from any bus

[dpdk.git] / drivers / common / mlx5 / linux / mlx5_common_auxiliary.c

diff --git a/drivers/common/mlx5/linux/mlx5_common_auxiliary.c b/drivers/common/mlx5/linux/mlx5_common_auxiliary.c
index 7b4efed..6584aeb 100644 (file)
--- a/drivers/common/mlx5/linux/mlx5_common_auxiliary.c
+++ b/drivers/common/mlx5/linux/mlx5_common_auxiliary.c
@@ -68,6 +68,23 @@ mlx5_auxiliary_get_pci_path(const struct rte_auxiliary_device *dev,
        return 0;
 }
 
+int
+mlx5_auxiliary_get_pci_str(const struct rte_auxiliary_device *dev,
+                          char *addr, size_t size)
+{
+       char sysfs_pci[PATH_MAX];
+       char *base;
+
+       if (mlx5_auxiliary_get_pci_path(dev, sysfs_pci, sizeof(sysfs_pci)) != 0)
+               return -ENODEV;
+       base = basename(sysfs_pci);
+       if (base == NULL)
+               return -errno;
+       if (rte_strscpy(addr, base, size) < 0)
+               return -rte_errno;
+       return 0;
+}
+
 static int
 mlx5_auxiliary_get_numa(const struct rte_auxiliary_device *dev)
 {