From mboxrd@z Thu Jan 1 00:00:00 1970 From: davem@davemloft.net (David Miller) Date: Tue, 29 Nov 2016 19:38:53 -0500 (EST) Subject: [PATCH net-next v3 0/4] Fix OdroidC2 Gigabit Tx link issue In-Reply-To: <1480326409-25419-1-git-send-email-jbrunet@baylibre.com> References: <1480326409-25419-1-git-send-email-jbrunet@baylibre.com> Message-ID: <20161129.193853.827524417068912706.davem@davemloft.net> To: linus-amlogic@lists.infradead.org List-Id: linus-amlogic.lists.infradead.org From: Jerome Brunet Date: Mon, 28 Nov 2016 10:46:45 +0100 > This patchset fixes an issue with the OdroidC2 board (DWMAC + RTL8211F). > The platform seems to enter LPI on the Rx path too often while performing > relatively high TX transfer. This eventually break the link (both Tx and > Rx), and require to bring the interface down and up again to get the Rx > path working again. > > The root cause of this issue is not fully understood yet but disabling EEE > advertisement on the PHY prevent this feature to be negotiated. > With this change, the link is stable and reliable, with the expected > throughput performance. > > The patchset adds options in the generic phy driver to disable EEE > advertisement, through device tree. The way it is done is very similar > to the handling of the max-speed property. Patches 1-3 applied to net-next, thanks.