Date: Thu, 1 Apr 2004 09:42:41 +0300 From: Ruslan Ermilov <ru@FreeBSD.org> To: Nate Lawson <nate@root.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/pci if_ste.c Message-ID: <20040401064241.GA18644@ip.net.ua> In-Reply-To: <20040331134609.N90425@root.org> References: <20040331211028.37B5016A4E2@hub.freebsd.org> <20040331134609.N90425@root.org>
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--qDbXVdCdHGoSgWSk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 31, 2004 at 01:47:16PM -0800, Nate Lawson wrote: > On Wed, 31 Mar 2004, Ruslan Ermilov wrote: > > Modified files: > > sys/pci if_ste.c > > Log: > > Under a heavy RX load, at least with D-Link DFE-550TX adapters, > > the driver's RX ring head may fall behind the chip, causing the > > stuck traffic, disordered packets, etc. Work around this by > > adopting the technique of resyncing RX head used in dc(4) and > > xl(4) drivers, but do it in a slightly different place to reduce > > the number of resyncs needed. > > > > Also, set the NIC's RX polling period to a more meaningful value, > > to stop overloading the PCI bus (this also reduces the number of > > resyncs by a factor of 3 or more in a long run; the actual number > > is very dependent on a nature of the traffic). > > > > Maintain the statistics counter as the hw.ste_rxsyncs sysctl. >=20 > This pollutes the toplevel hw sysctl space. Please move it to > hw.ste.rxsyncs or better, debug.*. >=20 Seems I followed the bad practice from dc(4) and fxp(4). I will move it to hw.ste, thanks. Cheers, --=20 Ruslan Ermilov ru@FreeBSD.org FreeBSD committer --qDbXVdCdHGoSgWSk Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAa7nhUkv4P6juNwoRArzIAJ0c11E8P60wzWASTOOPmP5Na6FJWgCfXkG4 7saHHYDAxKv7qZipPK8WTy0= =l2Rs -----END PGP SIGNATURE----- --qDbXVdCdHGoSgWSk--
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