netdev - Re: [PATCH v3 net-next 08/21] nvme-tcp : Recalculate crc in the end of the capsule

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Date:   Thu, 4 Feb 2021 20:36:31 +0200
From:   Or Gerlitz <gerlitz.or@...il.com>
To:     Sagi Grimberg <sagi@...mberg.me>
Cc:     Boris Pismenny <borisp@...lanox.com>,
        David Ahern <dsahern@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        David Miller <davem@...emloft.net>,
        Saeed Mahameed <saeedm@...dia.com>,
        Christoph Hellwig <hch@....de>, axboe@...com,
        Keith Busch <kbusch@...nel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Eric Dumazet <edumazet@...gle.com>, smalin@...vell.com,
        Yoray Zack <yorayz@...lanox.com>, yorayz@...dia.com,
        boris.pismenny@...il.com, Ben Ben-Ishay <benishay@...lanox.com>,
        benishay@...dia.com, linux-nvme@...ts.infradead.org,
        Linux Netdev List <netdev@...r.kernel.org>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        Or Gerlitz <ogerlitz@...dia.com>
Subject: Re: [PATCH v3 net-next 08/21] nvme-tcp : Recalculate crc in the end
 of the capsule

On Wed, Feb 3, 2021 at 11:12 AM Sagi Grimberg <sagi@...mberg.me> wrote:

> > @@ -1841,8 +1913,10 @@ static void __nvme_tcp_stop_queue(struct nvme_tcp_queue *queue)
> >       nvme_tcp_restore_sock_calls(queue);
> >       cancel_work_sync(&queue->io_work);
> >
> > -     if (test_bit(NVME_TCP_Q_OFF_DDP, &queue->flags))
> > +     if (test_bit(NVME_TCP_Q_OFF_DDP, &queue->flags) ||
> > +         test_bit(NVME_TCP_Q_OFF_DDGST_RX, &queue->flags))
> >               nvme_tcp_unoffload_socket(queue);
> > +
>
> extra newline

will remove

> >   }
> >
> >   static void nvme_tcp_stop_queue(struct nvme_ctrl *nctrl, int qid)
> > @@ -1970,8 +2044,6 @@ static int nvme_tcp_alloc_admin_queue(struct nvme_ctrl *ctrl)
> >   {
> >       int ret;
> >
> > -     to_tcp_ctrl(ctrl)->offloading_netdev = NULL;
> > -
>
> Unclear what is the intent here.

yep, unclear indeed.. will look and probably remove

as for your other comment on this patch, will get back to you later on

> >       ret = nvme_tcp_alloc_queue(ctrl, 0, NVME_AQ_DEPTH);
> >       if (ret)
> >               return ret;