Alexander Duyck 5b5f14601e ixgbe: Prevent u8 wrapping of ITR value to something less than 10us ...

commit 377228accb upstream.

There were a couple cases where the ITR value generated via the adaptive
ITR scheme could exceed 126. This resulted in the value becoming either 0
or something less than 10. Switching back and forth between a value less
than 10 and a value greater than 10 can cause issues as certain hardware
features such as RSC to not function well when the ITR value has dropped
that low.

CC: stable@vger.kernel.org
Fixes: b4ded8327f ("ixgbe: Update adaptive ITR algorithm")
Reported-by: Gregg Leventhal <gleventhal@janestreet.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-09-19 09:09:34 +02:00

..

ixgbe_82598.c

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_82599.c

ixgbe: cleanup sparse warnings

2018-05-17 08:24:30 -07:00

ixgbe_common.c

ixgbe: Be more careful when modifying MAC filters

2018-07-12 07:17:13 -07:00

ixgbe_common.h

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_dcb_82598.c

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_dcb_82598.h

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_dcb_82599.c

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_dcb_82599.h

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_dcb_nl.c

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_dcb.c

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_dcb.h

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_debugfs.c

ixgbe: introduce a helper to simplify code

2018-06-04 10:21:13 -07:00

ixgbe_ethtool.c

ixgbe: Check DDM existence in transceiver before access

2019-07-26 09:14:12 +02:00

ixgbe_fcoe.c

ixgbe: Replace GFP_ATOMIC with GFP_KERNEL

2018-08-24 08:52:35 -07:00

ixgbe_fcoe.h

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_ipsec.c

ixgbe: allow IPsec Tx offload in VEPA mode

2019-01-26 09:32:33 +01:00

ixgbe_ipsec.h

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_lib.c

ixgbe: Fix setting of TC configuration for macvlan case

2018-06-11 07:49:55 -07:00

ixgbe_main.c

ixgbe: Prevent u8 wrapping of ITR value to something less than 10us

2019-09-19 09:09:34 +02:00

ixgbe_mbx.c

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_mbx.h

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_model.h

ixgbe: cleanup sparse warnings

2018-05-17 08:24:30 -07:00

ixgbe_phy.c

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_phy.h

ixgbe: Check DDM existence in transceiver before access

2019-07-26 09:14:12 +02:00

ixgbe_ptp.c

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_sriov.c

ixgbe: Fix race when the VF driver does a reset

2019-01-13 09:50:59 +01:00

ixgbe_sriov.h

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_sysfs.c

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_type.h

ixgbe: fix driver behaviour after issuing VFLR

2018-08-24 08:52:35 -07:00

ixgbe_x540.c

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_x540.h

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00

ixgbe_x550.c

ixgbe: recognize 1000BaseLX SFP modules as 1Gbps

2018-12-17 09:24:39 +01:00

ixgbe.h

ixgbe: Refactor queue disable logic to take completion time into account

2018-07-26 09:04:06 -07:00

Makefile

net: intel: Cleanup the copyright/license headers

2018-04-27 14:00:04 -04:00