DPDK patches and discussions
 help / color / mirror / Atom feed
From: David Marchand <david.marchand@redhat.com>
To: "Zhang, Qi Z" <qi.z.zhang@intel.com>
Cc: "Su, Simei" <simei.su@intel.com>,
	"Xing, Beilei" <beilei.xing@intel.com>,
	 "Zhang, Yuying" <yuying.zhang@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	 "Yang, Qiming" <qiming.yang@intel.com>,
	"stable@dpdk.org" <stable@dpdk.org>,
	Kevin Traynor <ktraynor@redhat.com>,
	Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [PATCH v6] net/i40e: rework maximum frame size configuration
Date: Tue, 28 Feb 2023 10:36:47 +0100	[thread overview]
Message-ID: <CAJFAV8ypO7W6aFBTyA8CRWPGCsR41Pc=hHsaSOiDit4_YhQSuA@mail.gmail.com> (raw)
In-Reply-To: <DM4PR11MB5994B2C1A8366AE4B10031B3D7AF9@DM4PR11MB5994.namprd11.prod.outlook.com>

Qi,

On Mon, Feb 27, 2023 at 1:35 AM Zhang, Qi Z <qi.z.zhang@intel.com> wrote:
> > One issue is reported by David Marchand that error occurs in OVS due to the
> > fix patch in mentioned changes below. The detailed reproduce step and
> > result are in https://patchwork.dpdk.org/project/dpdk/patch/
> > 20211207085946.121032-1-dapengx.yu@intel.com/.
> >
> > This patch removes unnecessary link status check and directly sets mac config
> > in dev_start. Also, it sets the parameter "wait to complete" true to wait for
> > more time to make sure adminq command execute completed.
> >
> > Fixes: a4ba77367923 ("net/i40e: enable maximum frame size at port level")
> > Fixes: 2184f7cdeeaa ("net/i40e: fix max frame size config at port level")
> > Fixes: 719469f13b11 ("net/i40e: fix jumbo frame Rx with X722")
> > Cc: stable@dpdk.org
> >
> > Reported-by: David Marchand <david.marchand@redhat.com>
> > Signed-off-by: Simei Su <simei.su@intel.com>
>
> Acked-by: Qi Zhang <qi.z.zhang@intel.com>

I was waiting for a ping... good thing I had a look at this thread.

I suggest splitting this in two parts before it reaches the main repo:
- put the reverts first (the reason is that 21.11 stable branch
already have them): this would end up the same as merging
https://patchwork.dpdk.org/project/dpdk/patch/20221213091837.87953-1-david.marchand@redhat.com/
that has been waiting since December,
- have the move of i40e_aq_set_mac_config from eth_i40e_dev_init to
i40e_dev_start + change in i40e_dev_link_update call in a second patch
(i.e. the following diff),

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index a982e42264..371f42233e 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -1710,11 +1710,6 @@ eth_i40e_dev_init(struct rte_eth_dev *dev, void
*init_params __rte_unused)
         */
        i40e_add_tx_flow_control_drop_filter(pf);

-       /* Set the max frame size to 0x2600 by default,
-        * in case other drivers changed the default value.
-        */
-       i40e_aq_set_mac_config(hw, I40E_FRAME_SIZE_MAX, TRUE, false, 0, NULL);
-
        /* initialize RSS rule list */
        TAILQ_INIT(&pf->rss_config_list);

@@ -2332,6 +2327,7 @@ i40e_dev_start(struct rte_eth_dev *dev)
        uint32_t intr_vector = 0;
        struct i40e_vsi *vsi;
        uint16_t nb_rxq, nb_txq;
+       uint16_t max_frame_size;

        hw->adapter_stopped = 0;

@@ -2452,7 +2448,7 @@ i40e_dev_start(struct rte_eth_dev *dev)
                        PMD_DRV_LOG(WARNING, "Fail to set phy mask");

                /* Call get_link_info aq command to enable/disable LSE */
-               i40e_dev_link_update(dev, 0);
+               i40e_dev_link_update(dev, 1);
        }

        if (dev->data->dev_conf.intr_conf.rxq == 0) {
@@ -2470,6 +2466,13 @@ i40e_dev_start(struct rte_eth_dev *dev)
                            "please call hierarchy_commit() "
                            "before starting the port");

+       max_frame_size = dev->data->mtu ?
+               dev->data->mtu + I40E_ETH_OVERHEAD :
+               I40E_FRAME_SIZE_MAX;
+
+       /* Set the max frame size to HW*/
+       i40e_aq_set_mac_config(hw, max_frame_size, TRUE, false, 0, NULL);
+
        return I40E_SUCCESS;

 tx_err:


This way, the new fix is easier to read too.
Thanks.


-- 
David Marchand


  reply	other threads:[~2023-02-28  9:37 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-16 10:53 [PATCH] " Simei Su
2023-01-16 11:18 ` David Marchand
2023-01-16 12:15   ` Su, Simei
2023-01-20  7:33     ` David Marchand
2023-01-20 13:57       ` Su, Simei
2023-01-20 14:46         ` David Marchand
2023-01-20 15:37           ` Su, Simei
2023-01-31  6:52 ` [PATCH v2] " Simei Su
2023-01-31  7:44   ` 答复: [[SPF Failed]][PATCH " 韩爽
2023-01-31 10:31   ` [PATCH v3] " Simei Su
2023-02-02  5:54     ` Yang, Qiming
2023-02-02 12:30     ` [PATCH v4] " Simei Su
2023-02-02 12:36       ` [PATCH v5] " Simei Su
2023-02-02 12:55         ` David Marchand
2023-02-03  3:50           ` Su, Simei
2023-02-02 13:24         ` David Marchand
2023-02-02 13:48           ` David Marchand
2023-02-03  8:38             ` Yang, Qiming
2023-02-03  8:47               ` David Marchand
2023-02-03  4:00           ` Su, Simei
2023-02-20  7:59         ` [PATCH v6] " Simei Su
2023-02-27  0:35           ` Zhang, Qi Z
2023-02-28  9:36             ` David Marchand [this message]
2023-03-02  9:51               ` Zhang, Qi Z
2023-03-22 16:50             ` Kevin Traynor
2023-03-23 14:50               ` Kevin Traynor
2023-03-24  6:32                 ` Jiang, YuX
2023-03-24  9:40                   ` Kevin Traynor
2023-03-24 10:20                     ` Jiang, YuX
2023-03-24 13:07                     ` Su, Simei
2023-03-06 12:18           ` [PATCH v7] net/i40e: fix max " Simei Su
2023-03-07  2:27             ` Zhang, Qi Z
2023-02-02 13:14       ` [PATCH v4] net/i40e: rework maximum " Kevin Traynor

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='CAJFAV8ypO7W6aFBTyA8CRWPGCsR41Pc=hHsaSOiDit4_YhQSuA@mail.gmail.com' \
    --to=david.marchand@redhat.com \
    --cc=beilei.xing@intel.com \
    --cc=dev@dpdk.org \
    --cc=ktraynor@redhat.com \
    --cc=qi.z.zhang@intel.com \
    --cc=qiming.yang@intel.com \
    --cc=simei.su@intel.com \
    --cc=stable@dpdk.org \
    --cc=thomas@monjalon.net \
    --cc=yuying.zhang@intel.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).