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xen networking: add XDP offset adjustment to xen-netback

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the patch basically adds the offset adjustment and netfront
state reading to make XDP work on netfront side.

Reviewed-by: Paul Durrant <paul@xen.org>
Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Denis Kirjanov
2020-06-29 16:13:29 +03:00
committed by David S. Miller
parent 6c5aa6fc4d
commit 1c9535c701
5 changed files with 61 additions and 1 deletions
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4
drivers/net/xen-netback/common.h
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@@ -281,6 +281,9 @@ struct xenvif {
u8 ipv6_csum:1;
u8 multicast_control:1;
/* headroom requested by xen-netfront */
u16 xdp_headroom;
/* Is this interface disabled? True when backend discovers
* frontend is rogue.
*/
@@ -395,6 +398,7 @@ static inline pending_ring_idx_t nr_pending_reqs(struct xenvif_queue *queue)
irqreturn_t xenvif_interrupt(int irq, void *dev_id);
extern bool separate_tx_rx_irq;
extern bool provides_xdp_headroom;
extern unsigned int rx_drain_timeout_msecs;
extern unsigned int rx_stall_timeout_msecs;