linux/drivers/net/ethernet/intel
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
..
e1000 e1000: don't enable dma receives until after dma address has been setup 2011-09-28 23:06:57 -07:00
e1000e
igb
igbvf
ixgb ixgb: finish conversion to ndo_fix_features 2011-09-23 13:55:25 -04:00
ixgbe ixgbe: update {P}FC thresholds to account for X540 and loopback 2011-09-28 23:09:59 -07:00
ixgbevf ixgbevf: Fix broken trunk vlan 2011-09-28 23:07:38 -07:00
e100.c
Kconfig
Makefile