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From: Dylan Hung <dylan_hung@aspeedtech.com>
To: <davem@davemloft.net>, <kuba@kernel.org>,
	<netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<ratbert@faraday-tech.com>, <linux-aspeed@lists.ozlabs.org>,
	<openbmc@lists.ozlabs.org>
Cc: <BMC-SW@aspeedtech.com>
Subject: [PATCH 0/1] Fix Aspeed ast2600 MAC TX hang
Date: Wed, 14 Oct 2020 14:06:31 +0800	[thread overview]
Message-ID: <20201014060632.16085-1-dylan_hung@aspeedtech.com> (raw)

This patch fixes the TX hang issue on Aspeed AST2600.
Two HW arbitration features are added onto ast2600, but these features will
cause MAC TX to hang when handling scatter-gather DMA.  These two
problematic features can be disabled by setting MAC register 0x58 bit28
and bit27.

Dylan Hung (1):
  net: ftgmac100: Fix Aspeed ast2600 TX hang issue

 drivers/net/ethernet/faraday/ftgmac100.c | 5 +++++
 drivers/net/ethernet/faraday/ftgmac100.h | 8 ++++++++
 2 files changed, 13 insertions(+)

-- 
2.17.1


             reply	other threads:[~2020-10-14  6:07 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-14  6:06 Dylan Hung [this message]
2020-10-14  6:06 ` [PATCH 1/1] net: ftgmac100: Fix Aspeed ast2600 TX hang issue Dylan Hung
2020-10-14  6:41   ` Joel Stanley
2020-10-14  7:58     ` Dylan Hung
2020-10-14 22:31       ` Joel Stanley
2020-10-15  1:49         ` Dylan Hung
2020-10-15  2:32           ` Joel Stanley
2020-10-16 22:37   ` Jakub Kicinski

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