From: "Valdis Klētnieks" <valdis.kletnieks@vt.edu>
To: Vasu M <vasu.kernel@gmail.com>
Cc: kernelnewbies <kernelnewbies@kernelnewbies.org>
Subject: Re: Relationship between Rx/Tx ring and Skbuff.
Date: Wed, 05 Aug 2020 21:43:36 -0400 [thread overview]
Message-ID: <108692.1596678216@turing-police> (raw)
In-Reply-To: <CAKF=xo+A25848xmGULdB_r9t7LGsgF2ZTKPne8FPBdYDgrxiUg@mail.gmail.com>
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On Wed, 05 Aug 2020 11:34:52 -0700, Vasu M said:
> it on a high level, when a packet is received in a NIC, DMA moves the
> packets from the NIC frame buffer into the RX ring buffer in the driver. A
> hardware interrupt is then raised and the top half moves the packet to the
> RX ring buffer.
Umm... I would expect the packet to be moved to the RX ring buffer exactly once,
not twice...
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next prev parent reply other threads:[~2020-08-06 1:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-05 18:34 Relationship between Rx/Tx ring and Skbuff Vasu M
2020-08-06 1:43 ` Valdis Klētnieks [this message]
2020-08-06 4:52 ` Vasu M
2020-08-28 13:43 ` Richard Sailer
2020-09-04 5:31 ` Mulyadi Santosa
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