From: Daniele Palmas <dnlplm@gmail.com>
To: Jakub Kicinski <kuba@kernel.org>
Cc: "David Miller" <davem@davemloft.net>,
"Paolo Abeni" <pabeni@redhat.com>,
"Eric Dumazet" <edumazet@google.com>,
"Subash Abhinov Kasiviswanathan" <quic_subashab@quicinc.com>,
"Sean Tranchetti" <quic_stranche@quicinc.com>,
"Jonathan Corbet" <corbet@lwn.net>, "Bjørn Mork" <bjorn@mork.no>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
netdev@vger.kernel.org
Subject: Re: [PATCH net-next 2/3] net: qualcomm: rmnet: add tx packets aggregation
Date: Mon, 14 Nov 2022 10:13:10 +0100 [thread overview]
Message-ID: <CAGRyCJEtXx4scuFYbpjpe+-UB=XWQX26uhC+yPJPKCoYCWMM2g@mail.gmail.com> (raw)
In-Reply-To: <20221111091440.51f9c09e@kernel.org>
Hello Jakub,
Il giorno ven 11 nov 2022 alle ore 18:14 Jakub Kicinski
<kuba@kernel.org> ha scritto:
>
> On Wed, 9 Nov 2022 19:02:48 +0100 Daniele Palmas wrote:
> > +bool rmnet_map_tx_agg_skip(struct sk_buff *skb)
> > +{
> > + bool is_icmp = 0;
> > +
> > + if (skb->protocol == htons(ETH_P_IP)) {
> > + struct iphdr *ip4h = ip_hdr(skb);
> > +
> > + if (ip4h->protocol == IPPROTO_ICMP)
> > + is_icmp = true;
> > + } else if (skb->protocol == htons(ETH_P_IPV6)) {
> > + unsigned int icmp_offset = 0;
> > +
> > + if (ipv6_find_hdr(skb, &icmp_offset, IPPROTO_ICMPV6, NULL, NULL) == IPPROTO_ICMPV6)
> > + is_icmp = true;
> > + }
> > +
> > + return is_icmp;
> > +}
>
> Why this? I don't see it mention in the commit message or any code
> comment.
This is something I've found in downstream code: with my test setup
and scenario it does not make any difference on the icmp packets
timing (both with or without throughput tests ongoing), but I don't
have access to all the systems for which rmnet is used.
So, I'm not sure if it solves a real issue in other situations.
I can move that out and me or someone else will add it again in case
there will be a real issue to be solved.
Thanks,
Daniele
next prev parent reply other threads:[~2022-11-14 9:19 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-09 18:02 [PATCH net-next 0/3] add tx packets aggregation to ethtool and rmnet Daniele Palmas
2022-11-09 18:02 ` [PATCH net-next 1/3] ethtool: add tx aggregation parameters Daniele Palmas
2022-11-11 17:07 ` Jakub Kicinski
2022-11-11 21:51 ` Daniele Palmas
2022-11-13 9:48 ` Gal Pressman
2022-11-14 10:06 ` Daniele Palmas
2022-11-14 10:45 ` Dave Taht
2022-11-15 11:51 ` Daniele Palmas
2022-11-15 15:27 ` Dave Taht
2022-11-15 0:42 ` Jakub Kicinski
2022-11-15 10:59 ` Gal Pressman
2022-11-15 16:21 ` Jakub Kicinski
2022-11-09 18:02 ` [PATCH net-next 2/3] net: qualcomm: rmnet: add tx packets aggregation Daniele Palmas
2022-11-10 17:32 ` Alexander Lobakin
2022-11-11 1:17 ` Subash Abhinov Kasiviswanathan (KS)
2022-11-11 17:11 ` Jakub Kicinski
2022-11-11 22:00 ` Daniele Palmas
2022-11-14 8:48 ` Daniele Palmas
2022-11-11 17:23 ` Daniele Palmas
2022-11-16 15:19 ` Daniele Palmas
2022-11-16 16:20 ` Alexander Lobakin
2022-11-20 9:25 ` Daniele Palmas
2022-11-20 9:39 ` Bjørn Mork
2022-11-20 9:52 ` Daniele Palmas
2022-11-20 17:48 ` Subash Abhinov Kasiviswanathan (KS)
2022-11-21 7:00 ` Daniele Palmas
2022-11-24 3:32 ` Subash Abhinov Kasiviswanathan (KS)
2022-11-10 19:09 ` kernel test robot
2022-11-11 17:14 ` Jakub Kicinski
2022-11-14 9:13 ` Daniele Palmas [this message]
2022-11-14 10:25 ` Bjørn Mork
2022-11-15 0:43 ` Jakub Kicinski
2022-11-09 18:02 ` [PATCH net-next 3/3] net: qualcomm: rmnet: add ethtool support for configuring tx aggregation Daniele Palmas
2022-11-11 6:46 ` kernel test robot
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