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From: Muhammad Zain-ul-Abideen <zain2294@gmail.com>
To: Suraj R Gupta <surajrgupta@iith.ac.in>
Cc: dev@dpdk.org, users <users@dpdk.org>
Subject: Re: [dpdk-users] [dpdk-dev] Issue in draining packets when head is null
Date: Thu, 23 Jan 2020 23:23:34 +0500	[thread overview]
Message-ID: <CAN7yQ2qsBThvLujL0Jiqbgm2pSiKOur72TQeyY-_T3-mvkqWJg@mail.gmail.com> (raw)
In-Reply-To: <CAMfGv3=XzwYGk6dTn9xcb2uNs5yxeQrrjTtjgse+X26JoBdjQQ@mail.gmail.com>

I see the current implementation doesn't cater for this escape sequence. U
have to implement a little logic to traverse through the empty buffs w.r.t.
current packets in buffer via some count.

On Thu, Jan 23, 2020, 10:54 PM Suraj R Gupta <surajrgupta@iith.ac.in> wrote:

> Folks,
> Any Ideas on this.
>
> On Mon, Jan 13, 2020 at 1:04 PM Suraj R Gupta <surajrgupta@iith.ac.in>
> wrote:
>
> > Hi all,
> > This is regarding an issue in the draining packet using
> rte_reorder_drain.
> > Suppose we have a window size of 16 and we get packets with sequence no
> > like 0,1,2,4,5,6. On performing drain operation, I retrieve packets like
> > 0,1,2.
> > Since now order_buf->entries[order_buf->head] i.e. order_buf->entries[3]
> > is null i won't be able to any more like 4,5,6. I would be able to do it
> > only when I get at a packet with a sequence number above window size.
> This
> > may be highly undesirable if we have large window sizes say 1024, 2048,
> > etc. we wouldn't be able to drain any more packets until a packet above
> > window size is received. Also since the struct rte_rorder_buffer are
> > defined in the source .c file, we are not able to move head of buffer
> from
> > applications. *Is there any specific reasons why it is implemented like
> > this in the library. Are there any ways to overcome this.*
> > --
> > Thanks and Regards
> > Suraj R Gupta
> >
>
>
> --
> Thanks and Regards
> Suraj R Gupta
>

      reply	other threads:[~2020-01-23 18:23 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-13  7:34 Suraj R Gupta
2020-01-23 17:53 ` Suraj R Gupta
2020-01-23 18:23   ` Muhammad Zain-ul-Abideen [this message]

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