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Date: Sun, 09 Mar 2014 12:37:12 -0700 From: Eric Dumazet <eric.dumazet@...il.com> To: Ming Chen <v.mingchen@...il.com> Cc: John Fastabend <john.r.fastabend@...el.com>, netdev@...r.kernel.org, Erez Zadok <ezk@....cs.sunysb.edu>, Dean Hildebrand <dhildeb@...ibm.com>, Geoff Kuenning <geoff@...hmc.edu> Subject: Re: [BUG?] ixgbe: only num_online_cpus() of the tx queues are enabled On Sun, 2014-03-09 at 15:22 -0400, Ming Chen wrote: > Hi Eric and John, > > I could not get the command working: > > #ethtool -l p3p1 > Channel parameters for p3p1: > Pre-set maximums: > RX: 0 > TX: 0 > Other: 1 > Combined: 63 > Current hardware settings: > RX: 0 > TX: 0 > Other: 1 > Combined: 6 > > #ethtool -L p3p1 rx 1 tx 1 > Cannot set device channel parameters: Invalid argument > > #ethtool -L p3p1 rx 1 tx 1 other 1 > other unmodified, ignoring > Cannot set device channel parameters: Invalid argument You need more recent kernel for ixgbe support : commit 4c696ca9fbabc5f94a3c6db7f009e73f0ef21831 Author: Alexander Duyck <alexander.h.duyck@...el.com> Date: Thu Jan 17 08:39:33 2013 +0000 ixgbe: Add support for set_channels ethtool operation This change adds support for the ethtool set_channels operation. Since the ixgbe driver has to support DCB as well as the other modes the assumption I made here is that the number of channels in DCB modes refers to the number of queues per traffic class, not the number of queues total. CC: Ben Hutchings <bhutchings@...arflare.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com> Tested-by: Phil Schmitt <phillip.j.schmitt@...el.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> -- 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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