From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Haren Myneni <haren@linux.vnet.ibm.com>,
herbert@gondor.apana.org.au, ddstreet@ieee.org,
mikey@neuling.org, suka@us.ibm.com, npiggin@gmail.com
Cc: linuxppc-dev@lists.ozlabs.org, linux-crypto@vger.kernel.org
Subject: Re: [1/2] crypto/nx: Use percpu send window for NX requests
Date: Tue, 14 Nov 2017 22:12:03 +1100 (AEDT) [thread overview]
Message-ID: <3yblFv25bsz9sPr@ozlabs.org> (raw)
In-Reply-To: <1506321782.13257.4.camel@hbabu-laptop>
On Mon, 2017-09-25 at 06:43:02 UTC, Haren Myneni wrote:
> [PATCH 1/2] crypto/nx: Use percpu send window for NX requests
>
> For P9 NX, the send window is opened for each crypto session and closed
> upon free. But VAS supports 64K windows per chip for all coprocessors
> including in user space support. So there is a possibility of not
> getting the window for kernel requests.
>
> This patch reserves windows for each coprocessor type (NX842) and are
> available forever for kernel requests, Opens each window for each CPU
> on the corresponding chip during driver initialization. So then use the
> percpu txwin for NX requests depends on the CPU on which the process
> is executing.
>
> Signed-off-by: Haren Myneni <haren@us.ibm.com>
Series applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/976dd6490b1b45727733a3ee1e25e1
cheers
prev parent reply other threads:[~2017-11-14 11:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-25 6:43 [PATCH 1/2] crypto/nx: Use percpu send window for NX requests Haren Myneni
2017-11-14 11:12 ` Michael Ellerman [this message]
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