From: "Neftin, Sasha" <sasha.neftin@intel.com>
To: Aaron Ma <aaron.ma@canonical.com>,
jesse.brandeburg@intel.com, anthony.l.nguyen@intel.com,
davem@davemloft.net, kuba@kernel.org,
intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, "Edri,
Michael" <michael.edri@intel.com>,
"Ruinskiy, Dima" <dima.ruinskiy@intel.com>,
"Neftin, Sasha" <sasha.neftin@intel.com>
Subject: Re: [Intel-wired-lan] [PATCH 2/2] igc: wait for the MAC copy when enabled MAC passthrough
Date: Sun, 4 Jul 2021 08:36:53 +0300 [thread overview]
Message-ID: <613e2106-940a-49ed-6621-0bb00bc7dca5@intel.com> (raw)
In-Reply-To: <20210702045120.22855-2-aaron.ma@canonical.com>
On 7/2/2021 07:51, Aaron Ma wrote:
> Such as dock hot plug event when runtime, for hardware implementation,
> the MAC copy takes less than one second when BIOS enabled MAC passthrough.
> After test on Lenovo TBT4 dock, 600ms is enough to update the
> MAC address.
> Otherwise ethernet fails to work.
>
> Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
> ---
> drivers/net/ethernet/intel/igc/igc_main.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
> index 606b72cb6193..c8bc5f089255 100644
> --- a/drivers/net/ethernet/intel/igc/igc_main.c
> +++ b/drivers/net/ethernet/intel/igc/igc_main.c
> @@ -5468,6 +5468,9 @@ static int igc_probe(struct pci_dev *pdev,
> memcpy(&hw->mac.ops, ei->mac_ops, sizeof(hw->mac.ops));
> memcpy(&hw->phy.ops, ei->phy_ops, sizeof(hw->phy.ops));
>
> + if (pci_is_thunderbolt_attached(pdev) > + msleep(600);
I believe it is a bit fragile. I would recommend here look for another
indication instead of delay. Can we poll for a 'pci_channel_io_normal'
state? (igc->pdev->error_state == pci_channel_io_normal)
> +
> /* Initialize skew-specific constants */
> err = ei->get_invariants(hw);
> if (err)
>
Thanks Aaron,
sasha
next prev parent reply other threads:[~2021-07-04 5:38 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-02 4:51 [PATCH 1/2] igc: don't rd/wr iomem when PCI is removed Aaron Ma
2021-07-02 4:51 ` [PATCH 2/2] igc: wait for the MAC copy when enabled MAC passthrough Aaron Ma
2021-07-04 5:36 ` Neftin, Sasha [this message]
2021-07-05 7:38 ` [Intel-wired-lan] " Aaron Ma
2021-07-05 11:54 ` Neftin, Sasha
2021-07-06 6:46 ` Aaron Ma
2021-07-08 4:24 ` Neftin, Sasha
2021-07-13 13:45 ` Aaron Ma
2021-07-14 9:13 ` Ruinskiy, Dima
2021-07-04 14:28 ` [PATCH 1/2] igc: don't rd/wr iomem when PCI is removed Pali Rohár
2021-07-05 7:23 ` Aaron Ma
2021-07-05 23:02 ` Krzysztof Wilczyński
2021-07-06 14:23 ` Pali Rohár
2021-07-05 7:47 ` Dave Airlie
2021-07-06 6:42 ` Aaron Ma
2021-07-06 20:12 ` Bjorn Helgaas
2021-07-07 21:53 ` Pali Rohár
2021-07-07 22:10 ` Bjorn Helgaas
2021-07-08 2:04 ` Oliver O'Halloran
2021-07-08 15:45 ` Bjorn Helgaas
2021-07-18 16:31 ` Oliver O'Halloran
2021-07-18 22:50 ` Pali Rohár
2021-07-19 2:49 ` Oliver O'Halloran
2021-07-19 8:13 ` Pali Rohár
2021-07-20 0:17 ` Bjorn Helgaas
2021-07-13 13:00 ` [PATCH v2] igc: fix page fault when thunderbolt is unplugged Aaron Ma
2021-08-04 12:06 ` [Intel-wired-lan] " Fuxbrumer, Dvora
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=613e2106-940a-49ed-6621-0bb00bc7dca5@intel.com \
--to=sasha.neftin@intel.com \
--cc=aaron.ma@canonical.com \
--cc=anthony.l.nguyen@intel.com \
--cc=davem@davemloft.net \
--cc=dima.ruinskiy@intel.com \
--cc=intel-wired-lan@lists.osuosl.org \
--cc=jesse.brandeburg@intel.com \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=michael.edri@intel.com \
--cc=netdev@vger.kernel.org \
/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).