diff options
| author |   Shani Michaeli <shanim@mellanox.com> | 2013-02-06 16:19:10 +0000 |
|---|---|---|
| committer |   Roland Dreier <roland@purestorage.com> | 2013-02-25 10:44:31 -0800 |
| commit | cc1ade94eeaa235b28fb139d4ba20b697be36768 (patch) | |
| tree | eec68d01eacf570003af591581b8445d2bfde66d /drivers/net/ethernet/mellanox/mlx4/fw.c | |
| parent | IB/mlx4: Remove redundant NULL check before kfree (diff) | |
| download | linux-dev-cc1ade94eeaa235b28fb139d4ba20b697be36768.tar.xz linux-dev-cc1ade94eeaa235b28fb139d4ba20b697be36768.zip | |
mlx4_core: Disable memory windows for virtual functions
Do not enable memory windows allocation for virtual functions.
In addition, add a few safety checks, such as:
* Verifying the PD of a new MPT matches the VF.
* Making sure binding memory window isn't enabled for FMRs, and
that new memory windows are not FMR themselves.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Shani Michaeli <shanim@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/fw.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/fw.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c index 8b3d0512a46b..a389612f8a4a 100644 --- a/drivers/net/ethernet/mellanox/mlx4/fw.c +++ b/drivers/net/ethernet/mellanox/mlx4/fw.c @@ -757,15 +757,19 @@ int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave, u64 flags; int err = 0; u8 field; + u32 bmme_flags; err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); if (err) return err; - /* add port mng change event capability unconditionally to slaves */ + /* add port mng change event capability and disable mw type 1 + * unconditionally to slaves + */ MLX4_GET(flags, outbox->buf, QUERY_DEV_CAP_EXT_FLAGS_OFFSET); flags |= MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV; + flags &= ~MLX4_DEV_CAP_FLAG_MEM_WINDOW; MLX4_PUT(outbox->buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET); /* For guests, report Blueflame disabled */ @@ -773,6 +777,11 @@ int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave, field &= 0x7f; MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_BF_OFFSET); + /* For guests, disable mw type 2 */ + MLX4_GET(bmme_flags, outbox, QUERY_DEV_CAP_BMME_FLAGS_OFFSET); + bmme_flags &= ~MLX4_BMME_FLAG_TYPE_2_WIN; + MLX4_PUT(outbox->buf, bmme_flags, QUERY_DEV_CAP_BMME_FLAGS_OFFSET); + return 0; } |