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From: Aaron Ma <aaron.ma@canonical.com>
To: Dave Airlie <airlied@gmail.com>
Cc: jesse.brandeburg@intel.com, anthony.l.nguyen@intel.com,
	David Miller <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	intel-wired-lan@lists.osuosl.org,
	Network Development <netdev@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/2] igc: don't rd/wr iomem when PCI is removed
Date: Tue, 6 Jul 2021 14:42:01 +0800	[thread overview]
Message-ID: <53691935-daee-9acc-93d2-414fb11ce2bc@canonical.com> (raw)
In-Reply-To: <CAPM=9twzx0aa5Dq-L5oOSk+w8z7audCq_biXwtFVh3QVY1VceA@mail.gmail.com>

On 7/5/21 3:47 PM, Dave Airlie wrote:
> Drive-by, but won't this add a lot of overhead on every register
> access? has this been benchmarked with lots of small network transfers
> or anything?
> 

iperf3 is tested, the result is the same as before.
Due to the registers are rd/wr even after error_handler and remove.
Didn't find better fix.
Please let me know if you have any idea.

Thanks,
Aaron

> Dave.

  reply	other threads:[~2021-07-06  6:42 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-02  4:51 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   ` [Intel-wired-lan] " Neftin, Sasha
2021-07-05  7:38     ` 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 [this message]
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

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