[UNIKRAFT PATCH v5 00/10] Introduce Xen Netfront driver

[Costin Lupu <costin.lupu@xxxxxxxxx>]

The current changes are required for supporting netfront devices. They should
be used together with the lwip patch series because they depend on each other.

These changes follow the same approach used for the design and implementation
of the virtio-net driver.

The first version of these patches was sent in 2018. Maybe the current year is
a lucky one and we will achieve the performance to upstream these changes.

Changes since v1:
- Split into multiple patches
- Use the new uknetdev API

Changes since v2:
- Add more info to commit messages

Changes since v3:
- Use nb_align field for queue infos
- Add patch for enabling default drivers

Changes since v4:
- Apply reviews feedback

Costin Lupu (10):
  plat/xen: Add vif device type
  plat/xen/drivers: Add skeleton for netfront driver
  plat/xen/drivers/net: Configure netfront device
  plat/xen/drivers/net: Create netfront queues
  plat/xen/drivers/net: Configure netfront tx queue
  plat/xen/drivers/net: Configure netfront rx queue
  plat/xen/drivers/net: Enable/disable interrupts for rx queues
  plat/xen/drivers/net: Start netfront device
  plat/xen/drivers/net: Add transmit operation
  plat/xen/drivers/net: Add receive operation

 plat/xen/Config.uk                 |   8 +
 plat/xen/Makefile.uk               |  11 +
 plat/xen/drivers/net/exportsyms.uk |   1 +
 plat/xen/drivers/net/netfront.c    | 860 +++++++++++++++++++++++++++++
 plat/xen/drivers/net/netfront.h    | 147 +++++
 plat/xen/drivers/net/netfront_xb.h |  46 ++
 plat/xen/drivers/net/netfront_xs.c | 528 ++++++++++++++++++
 plat/xen/include/xenbus/xenbus.h   |   1 +
 plat/xen/xenbus/client.c           |   1 +
 9 files changed, 1603 insertions(+)
 create mode 100644 plat/xen/drivers/net/exportsyms.uk
 create mode 100644 plat/xen/drivers/net/netfront.c
 create mode 100644 plat/xen/drivers/net/netfront.h
 create mode 100644 plat/xen/drivers/net/netfront_xb.h
 create mode 100644 plat/xen/drivers/net/netfront_xs.c

-- 
2.20.1