From: Jakub Kicinski <kuba@kernel.org>
To: Tony Nguyen <anthony.l.nguyen@intel.com>
Cc: davem@davemloft.net, pabeni@redhat.com, edumazet@google.com,
Lukasz Cieplicki <lukaszx.cieplicki@intel.com>,
netdev@vger.kernel.org, sassmann@redhat.com,
Jedrzej Jagielski <jedrzej.jagielski@intel.com>,
Gurucharan <gurucharanx.g@intel.com>
Subject: Re: [PATCH net 1/2] i40e: Fix dropped jumbo frames statistics
Date: Thu, 30 Jun 2022 21:02:02 -0700 [thread overview]
Message-ID: <20220630210202.23165f16@kernel.org> (raw)
In-Reply-To: <20220630214940.3036250-2-anthony.l.nguyen@intel.com>
On Thu, 30 Jun 2022 14:49:39 -0700 Tony Nguyen wrote:
> From: Lukasz Cieplicki <lukaszx.cieplicki@intel.com>
>
> Dropped packets caused by too large frames were not included in
> dropped RX packets statistics.
> Issue was caused by not reading the GL_RXERR1 register. That register
> stores count of packet which was have been dropped due to too large
> size.
>
> Fix it by reading GL_RXERR1 register for each interface.
>
> Repro steps:
> Send a packet larger than the set MTU to SUT
> Observe rx statists: ethtool -S <interface> | grep rx | grep -v ": 0"
You should count oversized frames to rx_length_errors.
next prev parent reply other threads:[~2022-07-01 4:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-30 21:49 [PATCH net 0/2][pull request] Intel Wired LAN Driver Updates 2022-06-30 Tony Nguyen
2022-06-30 21:49 ` [PATCH net 1/2] i40e: Fix dropped jumbo frames statistics Tony Nguyen
2022-07-01 4:02 ` Jakub Kicinski [this message]
2022-06-30 21:49 ` [PATCH net 2/2] i40e: Fix VF's MAC Address change on VM Tony Nguyen
2022-07-01 10:40 ` [PATCH net 0/2][pull request] Intel Wired LAN Driver Updates 2022-06-30 patchwork-bot+netdevbpf
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