diff options
| author | Yevgeny Petrilin <yevgenyp@mellanox.co.il> | 2009-07-06 16:10:03 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2009-07-06 16:10:03 -0700 |
| commit | cc4ac2e7fb90dfbbbd5a42df0879733f787e4690 (patch) | |
| tree | 2d349bbda2642b8b2c5156fedf0c13cbbb7cfc28 /drivers/net | |
| parent | 626f380d0b264a1e40237f5a2a3dffc5d14f256e (diff) | |
| download | op-kernel-dev-cc4ac2e7fb90dfbbbd5a42df0879733f787e4690.zip op-kernel-dev-cc4ac2e7fb90dfbbbd5a42df0879733f787e4690.tar.gz | |
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>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/mlx4/cmd.c | 5 | ||||
| -rw-r--r-- | drivers/net/mlx4/main.c | 5 |
2 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/mlx4/cmd.c b/drivers/net/mlx4/cmd.c index 2845a05..65ec77d 100644 --- a/drivers/net/mlx4/cmd.c +++ b/drivers/net/mlx4/cmd.c @@ -80,7 +80,9 @@ enum { /* Bad management packet (silently discarded): */ CMD_STAT_BAD_PKT = 0x30, /* More outstanding CQEs in CQ than new CQ size: */ - CMD_STAT_BAD_SIZE = 0x40 + CMD_STAT_BAD_SIZE = 0x40, + /* Multi Function device support required: */ + CMD_STAT_MULTI_FUNC_REQ = 0x50, }; enum { @@ -128,6 +130,7 @@ static int mlx4_status_to_errno(u8 status) [CMD_STAT_LAM_NOT_PRE] = -EAGAIN, [CMD_STAT_BAD_PKT] = -EINVAL, [CMD_STAT_BAD_SIZE] = -ENOMEM, + [CMD_STAT_MULTI_FUNC_REQ] = -EACCES, }; if (status >= ARRAY_SIZE(trans_table) || 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 @@ static int mlx4_init_hca(struct mlx4_dev *dev) 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; } |
