From: Jason Xing <kerneljasonxing@gmail.com>
To: jesse.brandeburg@intel.com, anthony.l.nguyen@intel.com,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, richardcochran@gmail.com, ast@kernel.org,
daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com,
alexandr.lobakin@intel.com, maciej.fijalkowski@intel.com
Cc: intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
kerneljasonxing@gmail.com, Jason Xing <kernelxing@tencent.com>
Subject: [PATCH net v2 2/3] i40e: add double of VLAN header when computing the max MTU
Date: Wed, 8 Feb 2023 10:43:33 +0800 [thread overview]
Message-ID: <20230208024333.10465-2-kerneljasonxing@gmail.com> (raw)
In-Reply-To: <20230208024333.10465-1-kerneljasonxing@gmail.com>
From: Jason Xing <kernelxing@tencent.com>
Include the second VLAN HLEN into account when computing the maximum
MTU size as other drivers do.
Fixes: 0c8493d90b6b ("i40e: add XDP support for pass and drop actions")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
---
v2: drop the duplicate definition
---
drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 53d0083e35da..d039928f3646 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2921,7 +2921,7 @@ static int i40e_change_mtu(struct net_device *netdev, int new_mtu)
struct i40e_pf *pf = vsi->back;
if (i40e_enabled_xdp_vsi(vsi)) {
- int frame_size = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
+ int frame_size = new_mtu + I40E_PACKET_HDR_PAD;
if (frame_size > i40e_max_xdp_frame_size(vsi))
return -EINVAL;
--
2.37.3
next prev parent reply other threads:[~2023-02-08 2:44 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-08 2:43 [PATCH net v4 1/3] ixgbe: allow to increase MTU to 3K with XDP enabled Jason Xing
2023-02-08 2:43 ` Jason Xing [this message]
2023-02-08 15:41 ` [PATCH net v2 2/3] i40e: add double of VLAN header when computing the max MTU Alexander H Duyck
2023-02-14 2:13 ` [Intel-wired-lan] " Rout, ChandanX
2023-02-08 15:37 ` [PATCH net v4 1/3] ixgbe: allow to increase MTU to 3K with XDP enabled Alexander H Duyck
2023-02-08 16:27 ` Maciej Fijalkowski
2023-02-08 18:57 ` Alexander H Duyck
2023-02-08 19:02 ` Maciej Fijalkowski
2023-02-14 2:23 ` [Intel-wired-lan] " Rout, ChandanX
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230208024333.10465-2-kerneljasonxing@gmail.com \
--to=kerneljasonxing@gmail.com \
--cc=alexandr.lobakin@intel.com \
--cc=anthony.l.nguyen@intel.com \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=hawk@kernel.org \
--cc=intel-wired-lan@lists.osuosl.org \
--cc=jesse.brandeburg@intel.com \
--cc=john.fastabend@gmail.com \
--cc=kernelxing@tencent.com \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=maciej.fijalkowski@intel.com \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=richardcochran@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).