ixgbe: don't set RXDCTL.RLPML for 82599

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[ Upstream commit 2bafa8fac1 ]

commit 2de6aa3a66 ("ixgbe: Add support for padding packet")

Uses RXDCTL.RLPML to limit the maximum frame size on Rx when using
build_skb. Unfortunately that register does not work on 82599.

Added an explicit check to avoid setting this register on 82599 MAC.

Extended the comment related to the setting of RXDCTL.RLPML to better
explain its purpose.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Emil Tantilov 2018-01-12 14:02:56 -08:00 • committed by Greg Kroah-Hartman

parent 27eb641f23

commit 7addb3e4ad

1 changed files with 6 additions and 2 deletions

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drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

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