linux/drivers/net/ethernet/intel/ixgbe
Alexander Duyck 377228accb ixgbe: Prevent u8 wrapping of ITR value to something less than 10us
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>
2019-09-11 09:39:35 -07:00
..
ixgbe.h ixgbe: Use LLDP ethertype define ETH_P_LLDP 2019-06-05 13:04:29 -07:00
ixgbe_82598.c
ixgbe_82599.c
ixgbe_common.c
ixgbe_common.h
ixgbe_dcb.c
ixgbe_dcb.h
ixgbe_dcb_82598.c
ixgbe_dcb_82598.h
ixgbe_dcb_82599.c
ixgbe_dcb_82599.h
ixgbe_dcb_nl.c
ixgbe_debugfs.c
ixgbe_ethtool.c ixgbe: Check DDM existence in transceiver before access 2019-06-26 09:18:54 -07:00
ixgbe_fcoe.c
ixgbe_fcoe.h
ixgbe_ipsec.c ixgbe: Avoid NULL pointer dereference with VF on non-IPsec hw 2019-06-28 15:58:53 -07:00
ixgbe_ipsec.h
ixgbe_lib.c
ixgbe_main.c ixgbe: Prevent u8 wrapping of ITR value to something less than 10us 2019-09-11 09:39:35 -07:00
ixgbe_mbx.c
ixgbe_mbx.h
ixgbe_model.h
ixgbe_phy.c ixgbe: fix mdio bus registration 2019-03-26 16:14:24 -07:00
ixgbe_phy.h ixgbe: Check DDM existence in transceiver before access 2019-06-26 09:18:54 -07:00
ixgbe_ptp.c ixgbe: fix potential u32 overflow on shift 2019-06-28 15:59:38 -07:00
ixgbe_sriov.c ixgbe: Use LLDP ethertype define ETH_P_LLDP 2019-06-05 13:04:29 -07:00
ixgbe_sriov.h
ixgbe_sysfs.c
ixgbe_txrx_common.h net: bpf: remove XDP_QUERY_XSK_UMEM enumerator 2019-02-15 15:14:22 +01:00
ixgbe_type.h ixgbe: implement support for SDP/PPS output on X550 hardware 2019-06-05 13:04:30 -07:00
ixgbe_x540.c
ixgbe_x540.h
ixgbe_x550.c
ixgbe_xsk.c xsk: Return the whole xdp_desc from xsk_umem_consume_tx 2019-06-27 22:53:27 +02:00
Makefile