diff options
| author | Davide Caratti | 2017-05-18 15:44:43 +0200 |
|---|---|---|
| committer | David S. Miller | 2017-05-20 01:21:29 +0200 |
| commit | b4759dcdcd8466e70f01ff07f33e17cd93131d34 (patch) | |
| tree | 179c33281ddc338e0a444e8ebd789dad32feb861 /include/linux/skbuff.h | |
| parent | openvswitch: more accurate checksumming in queue_userspace_packet() (diff) | |
| download | kernel-qcow2-linux-b4759dcdcd8466e70f01ff07f33e17cd93131d34.tar.gz kernel-qcow2-linux-b4759dcdcd8466e70f01ff07f33e17cd93131d34.tar.xz kernel-qcow2-linux-b4759dcdcd8466e70f01ff07f33e17cd93131d34.zip | |
sk_buff.h: improve description of CHECKSUM_{COMPLETE, UNNECESSARY}
Add FCoE to the list of protocols that can set CHECKSUM_UNNECESSARY; add a
note to CHECKSUM_COMPLETE section to specify that it does not apply to SCTP
and FCoE protocols.
Suggested-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 43d7ca07b2ff..1713e4b7ea9f 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -109,6 +109,7 @@ * may perform further validation in this case. * GRE: only if the checksum is present in the header. * SCTP: indicates the CRC in SCTP header has been validated. + * FCOE: indicates the CRC in FC frame has been validated. * * skb->csum_level indicates the number of consecutive checksums found in * the packet minus one that have been verified as CHECKSUM_UNNECESSARY. @@ -126,8 +127,10 @@ * packet as seen by netif_rx() and fills out in skb->csum. Meaning, the * hardware doesn't need to parse L3/L4 headers to implement this. * - * Note: Even if device supports only some protocols, but is able to produce - * skb->csum, it MUST use CHECKSUM_COMPLETE, not CHECKSUM_UNNECESSARY. + * Notes: + * - Even if device supports only some protocols, but is able to produce + * skb->csum, it MUST use CHECKSUM_COMPLETE, not CHECKSUM_UNNECESSARY. + * - CHECKSUM_COMPLETE is not applicable to SCTP and FCoE protocols. * * CHECKSUM_PARTIAL: * |