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linux-next/drivers/net/ixgb
Herbert Xu 7967168cef [NET]: Merge TSO/UFO fields in sk_buff
Having separate fields in sk_buff for TSO/UFO (tso_size/ufo_size) is not
going to scale if we add any more segmentation methods (e.g., DCCP).  So
let's merge them.

They were used to tell the protocol of a packet.  This function has been
subsumed by the new gso_type field.  This is essentially a set of netdev
feature bits (shifted by 16 bits) that are required to process a specific
skb.  As such it's easy to tell whether a given device can process a GSO
skb: you just have to and the gso_type field and the netdev's features
field.

I've made gso_type a conjunction.  The idea is that you have a base type
(e.g., SKB_GSO_TCPV4) that can be modified further to support new features.
For example, if we add a hardware TSO type that supports ECN, they would
declare NETIF_F_TSO | NETIF_F_TSO_ECN.  All TSO packets with CWR set would
have a gso_type of SKB_GSO_TCPV4 | SKB_GSO_TCPV4_ECN while all other TSO
packets would be SKB_GSO_TCPV4.  This means that only the CWR packets need
to be emulated in software.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-23 02:07:29 -07:00
..
ixgb_ee.c ixgb: update version, dates 2006-05-26 09:38:10 -07:00
ixgb_ee.h ixgb: update version, dates 2006-05-26 09:38:10 -07:00
ixgb_ethtool.c ixgb: update version, dates 2006-05-26 09:38:10 -07:00
ixgb_hw.c ixgb: update version, dates 2006-05-26 09:38:10 -07:00
ixgb_hw.h ixgb: update version, dates 2006-05-26 09:38:10 -07:00
ixgb_ids.h ixgb: update version, dates 2006-05-26 09:38:10 -07:00
ixgb_main.c [NET]: Merge TSO/UFO fields in sk_buff 2006-06-23 02:07:29 -07:00
ixgb_osdep.h ixgb: update version, dates 2006-05-26 09:38:10 -07:00
ixgb_param.c ixgb: update version, dates 2006-05-26 09:38:10 -07:00
ixgb.h ixgb: update version, dates 2006-05-26 09:38:10 -07:00
Makefile ixgb: update version, dates 2006-05-26 09:38:10 -07:00