From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: Re: 2.4.21: bug report for tg3: tx lockup when changing MTU Date: Sat, 02 Aug 2003 20:48:51 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: <3F2C8623.2080106@candelatech.com> References: <3F2AEFBF.3040604@candelatech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: "'netdev@oss.sgi.com'" Return-path: To: Sascha Schumann In-Reply-To: Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org Sascha Schumann wrote: >>Kernel is 2.4.21 + custom patches (which should not affect tg3). >> >>lspci says the NIC is: Altima AC9100 (rev 15) > > > [1] says that the AC9100 based Netgear GA302T cards don't > support jumbo frames. I'm seeing regular lockups once > packets larger than 1500bytes flow through the NIC. > > It would be cool though if this turned out to be a driver > limitation and not a (crippled) chipset issue. It definately handles 4000 byte frames just fine, you just need to ifdown and ifup it after changing the MTU much of the time...or maybe only when running it under heavy load when you make the MTU change... Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com