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From: David Marchand <david.marchand@redhat.com>
To: Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>,
	"dev@dpdk.org" <dev@dpdk.org>, Chenbo Xia <chenbox@nvidia.com>,
	Fan Zhang <fanzhang.oss@gmail.com>,
	 Jay Zhou <jianjay.zhou@huawei.com>,
	Anoob Joseph <anoobj@marvell.com>,
	 Akhil Goyal <gakhil@marvell.com>,
	"stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [EXTERNAL] Re: [v6 1/5] vhost: skip crypto op fetch before vring init
Date: Fri, 28 Feb 2025 09:48:25 +0100	[thread overview]
Message-ID: <CAJFAV8zDrLGrjk2F5EXqzGJUytQdnFnv5b1y5xr01TfYj0dRLA@mail.gmail.com> (raw)
In-Reply-To: <BY3PR18MB470536F2A1329EE6732E332CCBCD2@BY3PR18MB4705.namprd18.prod.outlook.com>

On Thu, Feb 27, 2025 at 7:07 PM Gowrishankar Muthukrishnan
<gmuthukrishn@marvell.com> wrote:
> > > Ha, and also you should be able to remove:
> > > __rte_no_thread_safety_analysis /* FIXME: requires iotlb_lock? */ in
> > > vhost_crypto_process_one_req() once implemented.
> > >
> >
> Removing it would break compilation for thread safety flag.
> http://mails.dpdk.org/archives/test-report/2025-February/857515.html
>
> It is due to local vc_req that is passed to func that requires iotlb lock
> In vc_req->vq. Even though vc_req->vq is locked vq, GCC does not allow it, as I understand.

*cough* clang.

>
>         vc_req = &data_req;
>         vc_req->desc_idx = desc_idx;
>         vc_req->dev = vcrypto->dev;
>         vc_req->vq = vq;

The annotations won't handle this wrapping in the vc_req object.
Just pass a vq object rather than the vc_req (which I don't see little
point in having in the first place..) and adjust annotations.


-- 
David Marchand


  reply	other threads:[~2025-02-28  8:48 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <cover.1740594750.git.gmuthukrishn@marvell.com>
2025-02-26 18:43 ` Gowrishankar Muthukrishnan
2025-02-27  9:15   ` Maxime Coquelin
2025-02-27  9:19     ` Maxime Coquelin
2025-02-27 13:15       ` [EXTERNAL] " Gowrishankar Muthukrishnan
2025-02-27 18:07         ` Gowrishankar Muthukrishnan
2025-02-28  8:48           ` David Marchand [this message]
2025-02-28  9:40             ` Maxime Coquelin
2025-02-28 13:59               ` Gowrishankar Muthukrishnan
2025-02-28 15:16                 ` Maxime Coquelin
2025-02-28 13:53             ` Gowrishankar Muthukrishnan
2025-02-26 18:43 ` [v6 3/5] examples/vhost_crypto: fix user callbacks Gowrishankar Muthukrishnan

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