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xen-devel
[Xen-devel] [SPAM] [PATCH] netback for upstream
I have rebased the current xen/next-2.6.32 netback stuff onto 2.6.37-rc5
in a new branch at:
git://xenbits.xen.org/people/ianc/linux-2.6.git upstream/dom0/backend/netback
This builds on my upstream/dom0/backend/core branch. (full pull request
style details are at the end)
I've added some proper commit messages to the early commits which were
previously lacking them. In particular 8495d90cf5c3..5f7b85f2899e seem
to have been Authored by Jeremy (according to the git metadata) but were
not signed-off. Jeremy is it OK to add your sign-off to those three?
Until those early commit messages are done the branch will be subject to
rebasing.
As it stands the branch won't work because it still needs PageForeign.
My intention is to replace this dependency with the new m2p overlay
grant table map stuff added for gntdev.
In the meantime if you need something right now I do have a working (if
somewhat over-engineered) version which removed the dependency of
PageForeign by always copying. This is in the
upstream/dom0/backend/netback-copying branch in the same repository. I
intend to throw this away when I've got the new m2p overlay stuff ready.
If you wanted the old PageForeign style thing you could look in
notupstream/foreign-memory while flagellating yourself.
So my plan going forward is to:
* switch to gnttab_{map,unmap}_refs + m2p overlay stuff.
* do a checkpatch.pl sweep over the complete files.
* do a "git mv" (or perhaps a suitable "git filter-branch") to
move from drivers/xen/netback to drivers/net/xen-netback.
* ensure netif.h has a reasonably current description of the ring
protocol, I suspect it is missing stuff like the GSO prefix
support.
After that I intend to submit to linux-netdev as a single large patch
for review. When it comes time to merge I'll ask if they are willing to
take the branch with history.
Ian.
The following changes since commit a8d67d067346b924e4d12d585257e2c33251ea04:
Ian Campbell (1):
xen/xenbus: fixup checkpatch issues in xenbus_probe*
are available in the git repository at:
git://xenbits.xen.org/people/ianc/linux-2.6.git upstream/dom0/backend/netback
Bastian Blank (1):
xen/netback: Fix null-pointer access in netback_uevent
Christophe Saout (1):
xen/netback: use dev_name() instead of removed ->bus_id.
Dongxiao Xu (6):
xen/netback: use smart polling instead of event notification
xen/netback: Move global/static variables into struct xen_netbk.
xen/netback: Introduce a new struct type page_ext.
xen/netback: Multiple tasklets support.
xen/netback: Use Kernel thread to replace the tasklet.
Netback: Set allocated memory to zero from vmalloc.
Ian Campbell (21):
netback: add ethtool stat to track copied skbs.
netback: make queue length parameter writeable in sysfs
netback: parent sysfs device should be set before registering.
xen: rename netbk module xen-netback.
xen: netback: remove unused xen_network_done code
xen: netback: factor disconnect from backend into new function.
xen: netback: wait for hotplug scripts to complete before signalling
connected to frontend
xen/netback: Always pull through PKT_PROT_LEN bytes into the linear part
of an skb.
xen/netback: Allow setting of large MTU before rings have connected.
xen/netback: correctly setup skb->ip_summed on receive
xen: netback: handle NET_SKBUFF_DATA_USES_OFFSET correctly
xen: netback: drop frag member from struct netbk_rx_meta
xen/netback: linearise SKBs as we copy them into guest memory on guest-RX.
xen: netback: drop more relics of flipping mode
xen/rings: make protocol specific usage of shared sring explicit
xen/netback: make protocol specific usage of shared sring explicit
xen: netback: check if foreign pages are actually netback-created foreign
pages.
xen: netback: do not unleash netback threads until initialisation is
complete
xen: netback: save interrupt state in add_to_net_schedule_list_tail
xen: netback: increase size of rx_meta array.
xen: netback: take net_schedule_list_lock when removing entry from
net_schedule_list
James Harper (1):
xen/netback: avoid null-pointer access in netback_uevent
Jan Beulich (2):
linux/netback: unmap tx ring gref when mapping of rx ring gref failed
Provide a variant of __RING_SIZE() that is an integer constant expression
Jeremy Fitzhardinge (26):
xen/netback: Initial import of linux-2.6.18-xen.hg netback driver.
xen/netback: first cut at porting to upstream and cleaning up
xen: Add defines for multicall parameter offsets.
xen/netback: don't include xen/evtchn.h
xen/netback: use mod_timer
xen/netback: use NET_SKB_PAD rather than "16"
xen/netback: completely drop flip support
xen/netback: demacro MASK_PEND_IDX
xen/netback: convert PEND_RING_IDX into a proper typedef name
xen/netback: rename NR_PENDING_REQS to nr_pending_reqs()
xen/netback: pre-initialize list and spinlocks; use empty list to
indicate not on list
xen/netback: remove CONFIG_XEN_NETDEV_PIPELINED_TRANSMITTER
xen/netback: make netif_get/put inlines
xen/netback: move code around
xen/netback: document PKT_PROT_LEN
netback: convert to net_device_ops
xen/netback: reinstate missing code
xen/netback: remove debug noise
xen/netback: don't screw around with packet gso state
xen/netback: use dev_get/set_drvdata() inteface
xen/netback: include linux/sched.h for TASK_* definitions
xen/netback: use get_sset_count rather than obsolete get_stats_count
netback: minor code formatting fixup
xen/netback: make sure all the group structures are initialized before
starting async code
Revert "xen/netback: make sure all the group structures are initialized
before starting async code"
netback: only initialize for PV domains
Keir Fraser (1):
xen: netback: Fixes for delayed copy of tx network packets.
Konrad Rzeszutek Wilk (1):
Fix compile warnings: ignoring return value of 'xenbus_register_backend'
..
Paul Durrant (3):
xen/netback: Fix basic indentation issue
xen/netback: Add a new style of passing GSO packets to frontends.
xen/netback: Make frontend features distinct from netback feature flags.
Steven Smith (2):
xen/netback: make sure that pg->mapping is never NULL for a page mapped
from a foreign domain.
xen/netback: try to pull a minimum of 72 bytes into the skb data area
arch/x86/include/asm/xen/hypercall.h | 11 +-
drivers/xen/Kconfig | 7 +
drivers/xen/Makefile | 22 +-
drivers/xen/netback/Makefile | 3 +
drivers/xen/netback/common.h | 329 ++++++
drivers/xen/netback/interface.c | 475 +++++++++
drivers/xen/netback/netback.c | 1902 ++++++++++++++++++++++++++++++++++
drivers/xen/netback/xenbus.c | 518 +++++++++
include/xen/interface/io/netif.h | 4 +
include/xen/interface/io/ring.h | 22 +-
10 files changed, 3278 insertions(+), 15 deletions(-)
create mode 100644 drivers/xen/netback/Makefile
create mode 100644 drivers/xen/netback/common.h
create mode 100644 drivers/xen/netback/interface.c
create mode 100644 drivers/xen/netback/netback.c
create mode 100644 drivers/xen/netback/xenbus.c
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