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Date: Thu, 31 Aug 2017 00:06:31 +0200 From: Andrew Lunn <andrew@...n.ch> To: Tim Harvey <tharvey@...eworks.com> Cc: netdev <netdev@...r.kernel.org>, Vivien Didelot <vivien.didelot@...oirfairelinux.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: DSA mv88e6xxx RX frame errors and TCP/IP RX failure On Wed, Aug 30, 2017 at 12:53:56PM -0700, Tim Harvey wrote: > Greetings, > > I'm seeing RX frame errors when using the mv88e6xxx DSA driver on > 4.13-rc7. The board I'm using is a GW5904 [1] which has an IMX6 FEC > MAC (eth0) connected via RGMII to a MV88E6176 with its downstream > P0/P1/P2/P3 to front panel RJ45's (lan1-lan4). Hi Tim Can you confirm the counter is this one: /* Report late collisions as a frame error. */ if (status & (BD_ENET_RX_NO | BD_ENET_RX_CL)) ndev->stats.rx_frame_errors++; I don't see anywhere else frame errors are counted, but it would be good to prove we are looking in the right place. Andrew
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