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Date: Tue, 16 Aug 2011 13:38:40 +0200 From: Michal Schmidt <mschmidt@...hat.com> To: eilong@...adcom.com CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>, Dmitry Kravkov <dmitry@...adcom.com>, Vladislav Zolotarov <vladz@...adcom.com> Subject: Re: [PATCH] bnx2x: suppress repeated error messages about Max BW On 08/15/2011 08:47 PM, Eilon Greenstein wrote: > On Mon, 2011-08-15 at 08:13 -0700, Michal Schmidt wrote: >> A tester reported getting only these 4 messages with the patch applied: >> >> [bnx2x_extract_max_cfg:1074(eth4)]Illegal configuration detected for Max >> BW on vn 2 - using 100 instead >> [bnx2x_extract_max_cfg:1074(eth5)]Illegal configuration detected for Max >> BW on vn 2 - using 100 instead >> [bnx2x_extract_max_cfg:1074(eth6)]Illegal configuration detected for Max >> BW on vn 3 - using 100 instead >> [bnx2x_extract_max_cfg:1074(eth7)]Illegal configuration detected for Max >> BW on vn 3 - using 100 instead >> >> This suggests that VNs 0 and 1 had non-zero Max BW configuration. > > Michal - this is a great point of data! It helped me finding a bug in > that code - the code is not suitable for 4 port devices, it always > assumes 4 VN per PCI function, while in 4 port devices there are only 2 > VN per PCI function. I assume that you are seeing this problem on a > 57800 with 2x10G + 2x1G - and the 1G devices are in single function mode > and therefore you are seeing this error message. I will send a patch to > fix the problem on 4 port devices soon (after testing it for a while) - > please confirm that you are seeing this issue on 2x10G+2x1G 57800 > device. Eilon, the tester is seeing this with BCM57711E. It's a HP-Blade bl460c-g6 with HP VirtualConnect. Quote from him: hp-agents reports 4 dual port nic's, Linux kernel reports 8 identical nic's but it's actual a blade with 2 LOM's (lan on motherboard) with each one port. Via VC we present max 4 FlexNic's per port, but for this server we present 2 FlexNic's per port. The fun with Linux is that it always sees all FlexNic's devices even if we configure 2 FlexNics via a VC profile on a port like on this server. Michal -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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