mlx4_core: Handle multi-physical function devices
MT26468 (PCI ID 0x6764) devices can expose multiple physical
functions. The current driver only handles the primary physical
function. For other functions, the QUERY_FW firmware command will
fail with the CMD_STAT_MULTI_FUNC_REQ error code. Don't try to drive
such devices, but print a message saying the driver is skipping those
devices rather than just "QUERY_FW command failed."
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
[ Rather than keeping unsupported devices bound to the driver, simply
print a more informative error message and exit - Roland ]
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index 018348c..b820658 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -729,7 +729,10 @@
err = mlx4_QUERY_FW(dev);
if (err) {
- mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
+ if (err == -EACCES)
+ mlx4_info(dev, "non-primary physical function, skipping.\n");
+ else
+ mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
return err;
}