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ixgbe: fix documentation 

The MTU values in the documentation do not match the source.
The source has frame limit of IXGBE_MAX_JUMBO_FRAME_SIZE (9728)
which is MTU of 9710 because of the accounting for Ethernet header
and CRC.

Also, don't refer to the obsolete ifconfig command.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Stephen Hemminger 2015-04-09 22:03:21 -07:00 committed by Jeff Kirsher
parent c0a34ebd43
commit d7018be0ae
1 changed files with 7 additions and 7 deletions
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14
Documentation/networking/ixgbe.txt
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@ -70,10 +70,10 @@ Avago 1000BASE-T SFP ABCU-5710RZ
82599-based adapters support all passive and active limiting direct attach 82599-based adapters support all passive and active limiting direct attach
cables that comply with SFF-8431 v4.1 and SFF-8472 v10.4 specifications. cables that comply with SFF-8431 v4.1 and SFF-8472 v10.4 specifications.
Laser turns off for SFP+ when ifconfig down Laser turns off for SFP+ when device is down
------------------------------------------- -------------------------------------------
"ifconfig down" turns off the laser for 82599-based SFP+ fiber adapters. "ip link set down" turns off the laser for 82599-based SFP+ fiber adapters.
"ifconfig up" turns on the laser. "ip link set up" turns on the laser.
82598-BASED ADAPTERS 82598-BASED ADAPTERS
@ -213,13 +213,13 @@ Additional Configurations
------------ ------------
The driver supports Jumbo Frames for all adapters. Jumbo Frames support is The driver supports Jumbo Frames for all adapters. Jumbo Frames support is
enabled by changing the MTU to a value larger than the default of 1500. enabled by changing the MTU to a value larger than the default of 1500.
The maximum value for the MTU is 16110. Use the ifconfig command to The maximum value for the MTU is 16110. Use the ip command to
increase the MTU size. For example: increase the MTU size. For example:
ifconfig ethx mtu 9000 up ip link set dev ethx mtu 9000
The maximum MTU setting for Jumbo Frames is 16110. This value coincides The maximum MTU setting for Jumbo Frames is 9710. This value coincides
with the maximum Jumbo Frames size of 16128. with the maximum Jumbo Frames size of 9728.
Generic Receive Offload, aka GRO Generic Receive Offload, aka GRO
-------------------------------- --------------------------------