From owner-freebsd-current@FreeBSD.ORG Tue May 19 09:54:51 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 05C7F106567A for ; Tue, 19 May 2009 09:54:51 +0000 (UTC) (envelope-from pascal.braun@continum.net) Received: from mailsrv1.continum.net (mr1.continum.net [80.72.129.121]) by mx1.freebsd.org (Postfix) with ESMTP id 634238FC1D for ; Tue, 19 May 2009 09:54:50 +0000 (UTC) (envelope-from pascal.braun@continum.net) Received: from c483.continum.net ([80.72.130.250] helo=[172.16.4.73]) by mr1.continum.net with esmtpa (Exim 4.67) (envelope-from ) id 1M6LfN-0000HB-5T for freebsd-current@freebsd.org; Tue, 19 May 2009 11:31:21 +0200 Message-ID: <4A127C56.6040502@continum.net> Date: Tue, 19 May 2009 11:31:02 +0200 From: Pascal Braun User-Agent: Thunderbird 2.0.0.17 (X11/20080925) MIME-Version: 1.0 To: freebsd-current@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Problems with jumbo frames on nfe X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 May 2009 09:54:52 -0000 Hi, I'm currently testing jumbo frames on a Sunfire 4540 running with FreeBSD 8-Current (build on April 8th). While using the nfe driver I'm having some unexpected problems if i try to bring up the interface with MTU sizes greater than 1970 bytes. The error message (in dmesg) is: nfe2: initialization failed: no memory for rx buffers I tried to deactivate checksum offloading with -rxcsum -txcsum, but that didn't help either. If I change the mtu size on-the-fly without bringing the interface down first, no error is logged. But the interface just isn't working. Does anyone have any ideas how to get jumbo frames working? Regards Pascal -- pciconf -lv -- nfe0@pci0:0:8:0: class=0x068000 card=0xcb8410de chip=0x037310de rev=0xa3 hdr=0x00 vendor = 'Nvidia Corp' device = 'MCP55 Ethernet' class = bridge nfe1@pci0:0:9:0: class=0x068000 card=0xcb8410de chip=0x037310de rev=0xa3 hdr=0x00 vendor = 'Nvidia Corp' device = 'MCP55 Ethernet' class = bridge nfe2@pci0:64:8:0: class=0x068000 card=0xcb8410de chip=0x037310de rev=0xa3 hdr=0x00 vendor = 'Nvidia Corp' device = 'MCP55 Ethernet' class = bridge nfe3@pci0:64:9:0: class=0x068000 card=0xcb8410de chip=0x037310de rev=0xa3 hdr=0x00 vendor = 'Nvidia Corp' device = 'MCP55 Ethernet' class = bridge