Messages in this thread | | | From | David Howells <> | Subject | Re: [RFC PATCH 23/28] algif: Remove hash_sendpage*() | Date | Sat, 25 Mar 2023 07:44:14 +0000 |
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Herbert Xu <herbert@gondor.apana.org.au> wrote:
> > I must be missing something, I think. What's particularly optimal about the > > code in hash_sendpage() but not hash_sendmsg()? Is it that the former uses > > finup/digest, but the latter ony does update+final? > > A lot of hardware hashes can't perform partial updates, so they > will always fall back to software unless you use finup/digest.
Okay. Btw, how much of a hard limit is ALG_MAX_PAGES? Multipage folios can exceed the current limit (16 pages, 64K) in size. Is it just to prevent too much memory being pinned at once?
David
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