Date: Sat, 7 May 2005 11:35:10 +0200 From: Marian Durkovic <md@bts.sk> To: Kris Kennaway <kris@obsecurity.org> Cc: freebsd-net@freebsd.org Subject: Re: SOLVED: Degraded TCP performace on Intel PRO/1000 Message-ID: <20050507093510.GA82158@us.svf.stuba.sk> In-Reply-To: <20050507043712.GB28373@xor.obsecurity.org> References: <20050505133250.GA73885@us.svf.stuba.sk> <20050506065950.GA1999@us.svf.stuba.sk> <20050507043712.GB28373@xor.obsecurity.org>
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> > To achieve wirespeed performance, the TX FIFO must be large enough to > > accomodate 2 jumbo packets (not just 1 as the driver was assuming). > > There was also a typo in the driver, causing the PBA tuning on most > > cards to be non-functional. > > > > Please be sure to use em driver version 1.7.41 or newer, either from > > the CVS (branch RELENG_4_11) or from Intel's downloads. > > Does this also apply to 5.x and above? If no-one else responds in the > next few days, can you please submit the patch in PR so it does not > get lost? > > Kris All the CVS branches of if_em.c have the same bugs in the packet buffer (PBA) code, so yes, the patch applies to all releases. M.
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