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From: Nicholas Piggin <npiggin@gmail.com>
To: Haren Myneni <haren@linux.ibm.com>, herbert@gondor.apana.org.au
Cc: linux-crypto@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	mikey@neuling.org, mpe@ellerman.id.au,
	sukadev@linux.vnet.ibm.com
Subject: Re: [PATCH v3 9/9] Documentation/powerpc: VAS API
Date: Mon, 23 Mar 2020 18:32:12 +1000	[thread overview]
Message-ID: <1584950507.6q5ilutvon.astroid@bobo.none> (raw)
In-Reply-To: <1583541541.9256.50.camel@hbabu-laptop>

Haren Myneni's on March 7, 2020 10:39 am:
> 
> Power9 introduced Virtual Accelerator Switchboard (VAS) which allows
> userspace to communicate with Nest Accelerator (NX) directly. But
> kernel has to establish channel to NX for userspace. This document
> describes user space API that application can use to establish
> communication channel.

Agree with Daniel this is good documentation.

But I don't see mention of the word 'signal' anywhere. The signal stuff
is one of the trickiest parts this code being added. It would be great if
that could be documented and even with example code or at least a
description of why it's required and can't be done some other way.

Does something like io_uring require signals in such cases?

Thanks,
Nick

  parent reply	other threads:[~2020-03-23  8:36 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-07  0:27 [PATCH v3 0/9] crypto/nx: Enable GZIP engine and provide userpace API Haren Myneni
2020-03-07  0:32 ` [PATCH v3 1/9] powerpc/vas: Initialize window attributes for GZIP coprocessor type Haren Myneni
2020-03-07  0:32 ` [PATCH v3 2/9] powerpc/vas: Define VAS_TX_WIN_OPEN ioctl API Haren Myneni
2020-03-07  0:33 ` [PATCH v3 3/9] powerpc/vas: Add VAS user space API Haren Myneni
2020-03-18  7:12   ` Daniel Axtens
2020-03-19  1:16   ` Daniel Axtens
2020-03-19  1:53     ` Haren Myneni
2020-03-20 12:18   ` Daniel Axtens
2020-03-22 20:50     ` Haren Myneni
2020-03-07  0:34 ` [PATCH v3 4/9] crypto/nx: Initialize coproc entry with kzalloc Haren Myneni
2020-03-07  0:34 ` [PATCH v3 5/9] crypto/nx: Rename nx-842-powernv file name to nx-common-powernv Haren Myneni
2020-03-07  0:36 ` [PATCH v3 6/9] crypto/NX: Make enable code generic to add new GZIP compression type Haren Myneni
2020-03-07  0:37 ` [PATCH v3 7/9] crypto/nx: Enable and setup GZIP compresstion type Haren Myneni
2020-03-07  0:38 ` [PATCH v3 8/9] crypto/nx: Remove 'pid' in vas_tx_win_attr struct Haren Myneni
2020-03-07  0:39 ` [PATCH v3 9/9] Documentation/powerpc: VAS API Haren Myneni
2020-03-20 12:24   ` Daniel Axtens
2020-03-23  0:54     ` Haren Myneni
2020-03-23  8:32   ` Nicholas Piggin [this message]
2020-03-16 13:04 ` [PATCH v3 0/9] crypto/nx: Enable GZIP engine and provide userpace API Daniel Axtens
2020-03-16 23:31   ` Haren Myneni

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