linux/drivers/net/ethernet/intel/ixgbe
John Fastabend 9da712d2ed ixgbe: update {P}FC thresholds to account for X540 and loopback
Revise high and low threshold marks wrt flow control to account
for the X540 devices and latency introduced by the loopback
switch.

Without this it was in theory possible to drop frames on a
supposedly lossless link with X540 or SR-IOV enabled.

Previously we used a magic number in a define to calculate the
threshold values. This made it difficult to sort out exactly
which latencies were or were not being accounted for. Here
I was overly explicit and tried to used #define names that would
be recognizable after reading the IEEE 802.1Qbb specification.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-09-28 23:09:59 -07:00
..
ixgbe_82598.c ixgbe: update {P}FC thresholds to account for X540 and loopback 2011-09-28 23:09:59 -07:00
ixgbe_82599.c ixgbe: avoid HW lockup when adapter is reset with Tx work pending 2011-09-23 09:05:51 -07:00
ixgbe_common.c ixgbe: update {P}FC thresholds to account for X540 and loopback 2011-09-28 23:09:59 -07:00
ixgbe_common.h ixgbe: avoid HW lockup when adapter is reset with Tx work pending 2011-09-23 09:05:51 -07:00
ixgbe_dcb_82598.c ixgbe: update {P}FC thresholds to account for X540 and loopback 2011-09-28 23:09:59 -07:00
ixgbe_dcb_82598.h
ixgbe_dcb_82599.c ixgbe: update {P}FC thresholds to account for X540 and loopback 2011-09-28 23:09:59 -07:00
ixgbe_dcb_82599.h
ixgbe_dcb_nl.c ixgbe: dcb, set priority to traffic class mappings 2011-09-23 09:05:50 -07:00
ixgbe_dcb.c ixgbe: DCB, do not call set_state() from IEEE mode 2011-09-23 09:05:49 -07:00
ixgbe_dcb.h ixgbe: update {P}FC thresholds to account for X540 and loopback 2011-09-28 23:09:59 -07:00
ixgbe_ethtool.c ixgbe: Cleanup q_vector interrupt throttle rate logic 2011-09-28 23:08:23 -07:00
ixgbe_fcoe.c ixgbe: disable LLI for FCoE 2011-09-28 23:09:10 -07:00
ixgbe_fcoe.h
ixgbe_main.c ixgbe: update {P}FC thresholds to account for X540 and loopback 2011-09-28 23:09:59 -07:00
ixgbe_mbx.c
ixgbe_mbx.h
ixgbe_phy.c
ixgbe_phy.h
ixgbe_sriov.c
ixgbe_sriov.h
ixgbe_type.h ixgbe: update {P}FC thresholds to account for X540 and loopback 2011-09-28 23:09:59 -07:00
ixgbe_x540.c ixgbe: remove global reset to the MAC 2011-09-23 09:05:52 -07:00
ixgbe.h ixgbe: Cleanup q_vector interrupt throttle rate logic 2011-09-28 23:08:23 -07:00
Makefile