max_vfs will only be created by igb_uio driver, for other
drivers like vfio or pci_uio_generic, max_vfs will miss.
But sriov_numvfs is not driver related, just get the vf numbers
from that field.
Signed-off-by: Michael Qiu <michael.qiu at intel.com>
---
v2 --> v1:
backport for kernel version less than 3.8
lib/librte_eal/linuxapp/eal/eal_pci.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci.c
b/lib/librte_eal/linuxapp/eal/eal_pci.c
index b5f5410..fcf5511 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci.c
@@ -272,8 +272,16 @@ pci_scan_one(const char *dirname, uint16_t domain, uint8_t
bus,
dev->max_vfs = 0;
snprintf(filename, sizeof(filename), "%s/max_vfs", dirname);
if (!access(filename, F_OK) &&
- eal_parse_sysfs_value(filename, &tmp) == 0) {
+ eal_parse_sysfs_value(filename, &tmp) == 0)
dev->max_vfs = (uint16_t)tmp;
+ else {
+ /* for none igb_uio driver, need kernel
+ * version greater than 3.8 */
+ snprintf(filename, sizeof(filename),
+ "%s/sriov_numvfs", dirname);
+ if (!access(filename, F_OK) &&
+ eal_parse_sysfs_value(filename, &tmp) == 0)
+ dev->max_vfs = (uint16_t)tmp;
}
/* get numa node */
--
1.9.3
