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Date: Tue, 28 Dec 2010 12:45:20 +0100 From: Michał Mirosław <mirq-linux@...e.qmqm.pl> To: Hans Ulli Kroll <ulli.kroll@...glemail.com> Cc: gemini-board-dev@...ts.berlios.de, netdev@...r.kernel.org, Christoph Biedl <linux-kernel.bfrz@...chmal.in-ulm.de> Subject: Re: [RFC PATCH v2] Gemini: Gigabit ethernet driver On Mon, Dec 27, 2010 at 08:21:44PM +0100, Hans Ulli Kroll wrote: > On Mon, 27 Dec 2010, Michał Mirosław wrote: > > + .dis_tx = 1, > > + .dis_rx = 1, > > + .max_len = 2, /* magic; 512 << max_len? */ > > + .ipv4_rx_chksum = 1, > > + .ipv6_rx_chksum = 1, > > This is what I found in some netbsd code for maxlen > > #define CONFIG0_MAXLEN_MASK __BITS(8,10) > #define CONFIG0_MAXLEN_GET(x) (((x) >> 8) & > CONFIG0_MAXLEN_MASK) > #define CONFIG0_MAXLEN(x) (((x) & > CONFIG0_MAXLEN_MASK) << 8) > #define CONFIG0_MAXLEN_1536 0 > #define CONFIG0_MAXLEN_1518 1 > #define CONFIG0_MAXLEN_1522 2 > #define CONFIG0_MAXLEN_1548 3 > #define CONFIG0_MAXLEN_JUMBO 4 > > spec. for the SL3616 says jumbo is 9k frames, but i didn't proved this. This is what I got after quick testing: max_len rx_max 0 1536 1 1518 2 1522 3 1542 4 9212 5 10236 6 1518 7 1518 rx_max is total packet's length (MAC header + (VLAN) + payload). Best Regards, Michał Mirosław -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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