8000 DSA: Refine the Readme adding pre-conditions by ysun · Pull Request #462 · intel/lkvs · GitHub
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DSA: Refine the Readme adding pre-conditions #462

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Mar 26, 2025
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DSA: Refine the Readme adding pre-conditions #462

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18 changes: 18 additions & 0 deletions BM/dsa/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,24 @@ networking, persistent memory, and various data processing applications. IAA is
a similar accelerator which is more focused on data encryption and decryption.
DSA and IAA share the same Linux Kernel driver “IDXD”

## dependencies
### Kenrel Configuration
Please check if `CONFIG_DMATEST=m` is configured.

### Kernel Commandline
Make sure the kernel commandline has the following options:
```
intel_iommu=on,sm_on
```

### BIOS dependencies
Please check if the following BIOS options are enabled:
```
EDKII -> Socket Configuration -> IIO Configuration -> Intel VT for Directed I/O (VT-d) -> Intel VT for Directed I/O -> Enable

EDKII -> Socket Configuration -> IIO Configuration -> Intel VT for Directed I/O (VT-d) ->Opt-out Illegal MSI Mitigation -> Enable
```

## Usage
IDXD is the DSA driver name and enabled after kernel 5.19, it is better to do tests
newer than that.
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