netdev - Re: [net-next PATCH v2 0/3] Add devlink params to vary cqe and rbuf

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Message-ID: <20211006064328.28a5da0a@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Wed, 6 Oct 2021 06:43:28 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Subbaraya Sundeep <sbhatta@...vell.com>
Cc:     <davem@...emloft.net>, <netdev@...r.kernel.org>,
        <sgoutham@...vell.com>, <hkelam@...vell.com>, <gakula@...vell.com>
Subject: Re: [net-next PATCH v2 0/3] Add devlink params to vary cqe and rbuf

On Wed, 6 Oct 2021 12:48:43 +0530 Subbaraya Sundeep wrote:
> Octeontx2 hardware writes a Completion Queue Entry(CQE) in the
> memory provided by software when a packet is received or
> transmitted. CQE has the buffer pointers (IOVAs) where the
> packet data fragments are written by hardware. One 128 byte
> CQE can hold 6 buffer pointers and a 512 byte CQE can hold
> 42 buffer pointers. Hence large packets can be received either
> by using 512 byte CQEs or by increasing size of receive buffers.
> Current driver only supports 128 byte CQEs.
> This patchset adds devlink params to change CQE and receive
> buffer sizes which inturn helps to tune whether many small size
> buffers or less big size buffers are needed to receive larger
> packets. Below is the patches description:

nak. Stop ignoring feedback and reposting your patches.