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docs: remove accel_fw doc page on batching

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Batch support has been removed from both the accel_fw and idxd
public API so remove the supporting docs.

Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: I98d1ab7a80942ef69a824482beb76cf921bc3d7f
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/11379
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
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paul luse 2022-02-01 13:42:44 -07:00 committed by Jim Harris
parent 847139f621
commit 9a9cde60a9
1 changed files with 0 additions and 19 deletions
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doc/accel_fw.md
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@ -141,22 +141,3 @@ The software module is enabled by default. If no hardware engine is explicitly
enabled via startup RPC as discussed earlier, the software module will use ISA-L
if available for functions such as CRC32C. Otherwise, standard glibc calls are
used to back the framework API.
### Batching {#batching}
Batching is exposed by the acceleration framework and provides an interface to
batch sets of commands up and then submit them with a single command. The public
API is consistent with the implementation however each plug-in module behaves
differently depending on its capabilities.
The DSA engine has complete support for batching all supported commands together
into one submission. This is advantageous as it reduces the overhead incurred in
the submission process to the hardware.
The software engine supports batching only to be consistent with the framework API.
In software there is no savings by batching sets of commands versus submitting them
individually.
The IOAT engine supports batching but it is only beneficial for `memmove` and `memfill`
as these are supported by the hardware. All other commands can be batched and the
framework will manage all other commands via software.