ehea: IBM eHEA Ethernet Device Driver

Hello,

this is the latest version of the IBM eHEA Ethernet Device Driver. It supports a new IBM ethernet chip on System p.
The driver has been posted on the netdev mailing list since the beginning of June and we got little feedback so far.

Main functionality including broadcast, multicast, VLAN and most parts of ethtool work.

Things we are still working on:
- performance improvements on SMP systems
- error recovery

In order to get this code ready for kernel inclusion we do highly appreciate your feedback.

The patch series consists of 6 patches
01: interfaces to network stack
02: pHYP interface
03: queue management
04: header files
05: makefile
06: Kernel build (Kconfig / Makefile)

Thanks,
Jan-Bernd

Differences to patch set http://www.spinics.net/lists/netdev/msg06715.html
Changelog:

- Memory Region struct introduced
- Shared Memory Regions for send and receive path included
- Memory Region registeration now processes 512 pages per H_CALL -.RQ2_PKT_SIZE changed to 1522 bytes
- NET_IP_ALIGN included
- Adaption to latest kernel (gso_size)
- minor changes (coding style, code cleanup)

 drivers/net/Kconfig             |    6
 drivers/net/Makefile            |    1
 drivers/net/ehea/Makefile       |    7
 drivers/net/ehea/ehea.h         |  452 ++++++
 drivers/net/ehea/ehea_ethtool.c |  325 ++++
 drivers/net/ehea/ehea_hcall.h   |   52
 drivers/net/ehea/ehea_hw.h      |  319 ++++
 drivers/net/ehea/ehea_main.c    | 2738 ++++++++++++++++++++++++++++++++++++++++
 drivers/net/ehea/ehea_phyp.c    | 1130 ++++++++++++++++
 drivers/net/ehea/ehea_phyp.h    |  573 ++++++++
 drivers/net/ehea/ehea_qmr.c     |  798 +++++++++++
 drivers/net/ehea/ehea_qmr.h     |  381 +++++
 12 files changed, 6782 insertions(+)