linux-kernel - [PATCH v2 0/2] net: arc

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Message-Id: <1410382203-10395-1-git-send-email-b.galvani@gmail.com>
Date:	Wed, 10 Sep 2014 22:50:01 +0200
From:	Beniamino Galvani <b.galvani@...il.com>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	Romain Perier <romain.perier@...il.com>,
	Heiko Stübner <heiko@...ech.de>,
	Arnd Bergmann <arnd@...db.de>,
	Tobias Klauser <tklauser@...tanz.ch>,
	Jingoo Han <jg1.han@...sung.com>,
	Max Schwarz <max.schwarz@...ine.de>,
	Florian Fainelli <f.fainelli@...il.com>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Beniamino Galvani <b.galvani@...il.com>
Subject: [PATCH v2 0/2] net: arc_emac: fix tx issues

Hi,

the patches below solve some issues found in the tx ring reclaim
strategy currently implemented in the arc_emac driver.

Without these patches a simple outgoing UDP flow blocks almost
immediately with the socket send buffer full, until some new rx
packets trigger a clean of the tx ring.

Everything seems to work fine on a Radxa Rock with this fix applied.

Changes since v1:
 - reworded commit messages

Beniamino Galvani (2):
  net: arc_emac: enable tx interrupts
  net: arc_emac: prevent reuse of unreclaimed tx descriptors

 drivers/net/ethernet/arc/emac_main.c | 53 +++++++++++++++++++++++++-----------
 1 file changed, 37 insertions(+), 16 deletions(-)

-- 
1.9.1

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