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path: root/drivers/net/xen-netback/netback.c
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2011-12-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-1/+1
2011-12-06netback: fix typo in commentWei Liu1-1/+1
"variables a used" should be "variables are used". Signed-off-by: Wei Liu <[email protected]> Acked-by: Ian Campbell <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-06netback: remove redundant assignmentWei Liu1-4/+0
New value for netbk->mmap_pages[pending_idx] is assigned in xen_netbk_alloc_page(), no need for a second assignment which exposes internal to the outside world. Signed-off-by: Wei Liu <[email protected]> Acked-by: Ian Campbell <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-06netback: Fix alert message.Wei Liu1-1/+1
The original message in netback_init was 'kthread_run() fails', which should be 'kthread_create() fails'. Signed-off-by: Wei Liu <[email protected]> Acked-by: Ian Campbell <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-11-21xen-netback: use correct index for invalidation in xen_netbk_tx_check_gop()Jan Beulich1-1/+1
Signed-off-by: Jan Beulich <[email protected]> Signed-off-by: Ian Campbell <[email protected]> Cc: [email protected] Signed-off-by: David S. Miller <[email protected]>
2011-11-06Merge branch 'stable/vmalloc-3.2' of ↵Linus Torvalds1-63/+17
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen * 'stable/vmalloc-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: net: xen-netback: use API provided by xenbus module to map rings block: xen-blkback: use API provided by xenbus module to map rings xen: use generic functions instead of xen_{alloc, free}_vm_area()
2011-10-26net: xen-netback: use API provided by xenbus module to map ringsDavid Vrabel1-63/+17
The xenbus module provides xenbus_map_ring_valloc() and xenbus_map_ring_vfree(). Use these to map the Tx and Rx ring pages granted by the frontend. Signed-off-by: David Vrabel <[email protected]> Acked-by: David S. Miller <[email protected]> Acked-by: Ian Campbell <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2011-10-19net: add skb frag size accessorsEric Dumazet1-2/+2
To ease skb->truesize sanitization, its better to be able to localize all references to skb frags size. Define accessors : skb_frag_size() to fetch frag size, and skb_frag_size_{set|add|sub}() to manipulate it. Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-10-05xen: netback: convert to SKB paged frag API.Ian Campbell1-21/+33
netback currently uses frag->page to store a temporary index reference while processing incoming requests. Since frag->page is to become opaque switch instead to using page_offset. Add a wrapper to tidy this up and propagate the fact that the indexes are only u16 through the code (this was already true in practice but unsigned long and in were inconsistently used as variable and parameter types) Signed-off-by: Ian Campbell <[email protected]> Cc: Ian Campbell <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: David S. Miller <[email protected]>
2011-06-30xen/netback: Add module alias for autoloadingBastian Blank1-0/+1
Add xen-backend:vif module alias to the xen-netback module. This allows automatic loading of the module. Signed-off-by: Bastian Blank <[email protected]> Acked-by: Ian Campbell <[email protected]> Acked-by: Konrad Rzeszutek Wilk <[email protected]>
2011-03-15xen network backend driverIan Campbell1-0/+1745
netback is the host side counterpart to the frontend driver in drivers/net/xen-netfront.c. The PV protocol is also implemented by frontend drivers in other OSes too, such as the BSDs and even Windows. The patch is based on the driver from the xen.git pvops kernel tree but has been put through the checkpatch.pl wringer plus several manual cleanup passes and review iterations. The driver has been moved from drivers/xen/netback to drivers/net/xen-netback. One major change from xen.git is that the guest transmit path (i.e. what looks like receive to netback) has been significantly reworked to remove the dependency on the out of tree PageForeign page flag (a core kernel patch which enables a per page destructor callback on the final put_page). This page flag was used in order to implement a grant map based transmit path (where guest pages are mapped directly into SKB frags). Instead this version of netback uses grant copy operations into regular memory belonging to the backend domain. Reinstating the grant map functionality is something which I would like to revisit in the future. Note that this driver depends on 2e820f58f7ad "xen/irq: implement bind_interdomain_evtchn_to_irqhandler for backend drivers" which is in linux next via the "xen-two" tree and is intended for the 2.6.39 merge window: git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git stable/backends this branch has only that single commit since 2.6.38-rc2 and is safe for cross merging into the net branch. Signed-off-by: Ian Campbell <[email protected]> Reviewed-by: Ben Hutchings <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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