https://github.com/torvalds/linux
Revision a43ae8057cc154fd26a3a23c0e8643bef104d995 authored by Eli Cohen on 12 September 2022, 12:50:19 UTC, committed by Michael S. Tsirkin on 27 September 2022, 22:32:45 UTC
RQT objects require that a power of two value be configured for both
rqt_max_size and rqt_actual size.
For create_rqt, make sure to round up to the power of two the value of
given by the user who created the vdpa device and given by
ndev->rqt_size. The actual size is also rounded up to the power of two
using the current number of VQs given by ndev->cur_num_vqs.
Same goes with modify_rqt where we need to make sure act size is power
of two based on the new number of QPs.
Without this patch, attempt to create a device with non power of two QPs
would result in error from firmware.
Fixes: 52893733f2c5 ("vdpa/mlx5: Add multiqueue support")
Signed-off-by: Eli Cohen <elic@nvidia.com>
Message-Id: <20220912125019.833708-1-elic@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Tip revision: a43ae8057cc154fd26a3a23c0e8643bef104d995 authored by Eli Cohen on 12 September 2022, 12:50:19 UTC
vdpa/mlx5: Fix MQ to support non power of two num queues
vdpa/mlx5: Fix MQ to support non power of two num queues
Tip revision: a43ae80
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| init | ||
| io_uring | ||
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| .clang-format | -rw-r--r-- | 19.9 KB |
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 151 bytes |
| .gitattributes | -rw-r--r-- | 62 bytes |
| .gitignore | -rw-r--r-- | 1.9 KB |
| .mailmap | -rw-r--r-- | 23.7 KB |
| COPYING | -rw-r--r-- | 496 bytes |
| CREDITS | -rw-r--r-- | 99.1 KB |
| Kbuild | -rw-r--r-- | 1.3 KB |
| Kconfig | -rw-r--r-- | 555 bytes |
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