user/sven/linux.git/net/iucv, branch v3.3.4

af_iucv: get rid of state IUCV_SEVERED

2011-12-20T19:05:03Z

af_iucv differs unnecessarily between state IUCV_SEVERED and IUCV_DISCONN. This patch removes state IUCV_SEVERED. While simplifying af_iucv, this patch removes the 2nd invocation of cpcmd as well. Signed-off-by: Ursula Braun Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller

af_iucv: remove unused timer infrastructure

2011-12-20T19:05:03Z

af_iucv contains timer infrastructure which is not exploited. This patch removes the timer related code parts. Signed-off-by: Ursula Braun Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller

af_iucv: release reference to HS device

2011-12-20T19:05:03Z

For HiperSockets transport skbs sent are bound to one of the available HiperSockets devices. Add missing release of reference to a HiperSockets device before freeing an skb. Signed-off-by: Ursula Braun Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller

af_iucv: accelerate close for HS transport

2011-12-20T19:05:03Z

Closing an af_iucv socket may wait for confirmation of outstanding send requests. This patch adds confirmation code for the new HiperSockets transport. Signed-off-by: Ursula Braun Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller

af_iucv: support ancillary data with HS transport

2011-12-20T19:05:03Z

The AF_IUCV address family offers support for ancillary data. This patch enables usage of ancillary data with the new HiperSockets transport. Signed-off-by: Ursula Braun Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller

net: more accurate skb truesize

2011-10-13T20:05:07Z

skb truesize currently accounts for sk_buff struct and part of skb head. kmalloc() roundings are also ignored. Considering that skb_shared_info is larger than sk_buff, its time to take it into account for better memory accounting. This patch introduces SKB_TRUESIZE(X) macro to centralize various assumptions into a single place. At skb alloc phase, we put skb_shared_info struct at the exact end of skb head, to allow a better use of memory (lowering number of reallocations), since kmalloc() gives us power-of-two memory blocks. Unless SLUB/SLUB debug is active, both skb->head and skb_shared_info are aligned to cache lines, as before. Note: This patch might trigger performance regressions because of misconfigured protocol stacks, hitting per socket or global memory limits that were previously not reached. But its a necessary step for a more accurate memory accounting. Signed-off-by: Eric Dumazet CC: Andi Kleen CC: Ben Hutchings Signed-off-by: David S. Miller

af_iucv: add HiperSockets transport

2011-08-13T08:10:16Z

The current transport mechanism for af_iucv is the z/VM offered communications facility IUCV. To provide equivalent support when running Linux in an LPAR, HiperSockets transport is added to the AF_IUCV address family. It requires explicit binding of an AF_IUCV socket to a HiperSockets device. A new packet_type ETH_P_AF_IUCV is announced. An af_iucv specific transport header is defined preceding the skb data. A small protocol is implemented for connecting and for flow control/congestion management. Signed-off-by: Ursula Braun Signed-off-by: Frank Blaschka Reviewed-by: Hendrik Brueckner Signed-off-by: David S. Miller

af_iucv: cleanup - use iucv_sk(sk) early

2011-08-13T08:10:16Z

Code cleanup making make use of local variable for struct iucv_sock. Signed-off-by: Ursula Braun Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller

af_iucv: use loadable iucv interface

2011-08-13T08:10:16Z

For future af_iucv extensions the module should be able to run in LPAR mode too. For this we use the new dynamic loading iucv interface. Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller

iucv: kernel option for z/VM IUCV and HiperSockets

2011-08-13T08:10:16Z

When adding HiperSockets transport to AF_IUCV Sockets, af_iucv either depends on IUCV or QETH_L3 (or both). This patch introduces the necessary changes for kernel configuration. Signed-off-by: Ursula Braun Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller