Commit 3af79302 authored by Yi Zou's avatar Yi Zou Committed by David S. Miller

net: update the usage of CHECKSUM_UNNECESSARY

As suggested by Ben, this adds the clarification on the usage of
CHECKSUM_UNNECESSARY on the outgoing patch. Also add the usage
description of NETIF_F_FCOE_CRC and CHECKSUM_UNNECESSARY
for the kernel FCoE protocol driver.

This is a follow-up to the following:
http://patchwork.ozlabs.org/patch/147315/Signed-off-by: default avatarYi Zou <yi.zou@intel.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: www.Open-FCoE.org <devel@open-fcoe.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cf64bc8f
...@@ -94,6 +94,13 @@ ...@@ -94,6 +94,13 @@
* about CHECKSUM_UNNECESSARY. 8) * about CHECKSUM_UNNECESSARY. 8)
* NETIF_F_IPV6_CSUM about as dumb as the last one but does IPv6 instead. * NETIF_F_IPV6_CSUM about as dumb as the last one but does IPv6 instead.
* *
* UNNECESSARY: device will do per protocol specific csum. Protocol drivers
* that do not want net to perform the checksum calculation should use
* this flag in their outgoing skbs.
* NETIF_F_FCOE_CRC this indicates the device can do FCoE FC CRC
* offload. Correspondingly, the FCoE protocol driver
* stack should use CHECKSUM_UNNECESSARY.
*
* Any questions? No questions, good. --ANK * Any questions? No questions, good. --ANK
*/ */
......
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