Date: Thu, 30 Oct 2008 13:15:04 +0100 (CET) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: Graham Bentley <admin@cpcnw.co.uk> Cc: freebsd-questions@freebsd.org Subject: Re: Marvell 88E8052 PCI-E LAN on FreeBSD 7.0 Message-ID: <20081030131123.S12581@wojtek.tensor.gdynia.pl> In-Reply-To: <op.ujt418h2t4j7n6@3bsd.cpcnw.co.uk> References: <op.ujt418h2t4j7n6@3bsd.cpcnw.co.uk>
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> I discovered that adding -txcsum and -rxcsum (i.e. > disabling hardware checksuming) to the ifconfig > statement, the performance was as quick as it is > on that other OS! there is a lot of buggy chips produced today. normally the should go to thrash, but - what a problem - they put onto motherboards so user have no choice. then they include windoze drivers that simply disable non-working features and they are happy, not even telling anyone about this. unless you are buying motherboard for servers, DO NOT expect lan to work ;) it's my common practice. nvidia ethernet was the worst one (it never worked), but realtek gigabit ethernet on other motherboard needed the same as yours (-txcsum, -rxcsum) or it randomly drop packets, probably because it calculates checksums wrong.
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