From 8d3d53b3e43363e79ab9a9ecc149b06c1314b25d Mon Sep 17 00:00:00 2001 From: "Andrew J. Bennieston" Date: Wed, 4 Jun 2014 10:30:43 +0100 Subject: xen-netback: Add support for multiple queues Builds on the refactoring of the previous patch to implement multiple queues between xen-netfront and xen-netback. Writes the maximum supported number of queues into XenStore, and reads the values written by the frontend to determine how many queues to use. Ring references and event channels are read from XenStore on a per-queue basis and rings are connected accordingly. Also adds code to handle the cleanup of any already initialised queues if the initialisation of a subsequent queue fails. Signed-off-by: Andrew J. Bennieston Acked-by: Wei Liu Signed-off-by: David S. Miller --- drivers/net/xen-netback/common.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net/xen-netback/common.h') diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h index b6885cfcc7d..4dd7c4a1923 100644 --- a/drivers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -237,6 +237,7 @@ struct xenvif *xenvif_alloc(struct device *parent, unsigned int handle); int xenvif_init_queue(struct xenvif_queue *queue); +void xenvif_deinit_queue(struct xenvif_queue *queue); int xenvif_connect(struct xenvif_queue *queue, unsigned long tx_ring_ref, unsigned long rx_ring_ref, unsigned int tx_evtchn, @@ -299,5 +300,6 @@ extern bool separate_tx_rx_irq; extern unsigned int rx_drain_timeout_msecs; extern unsigned int rx_drain_timeout_jiffies; +extern unsigned int xenvif_max_queues; #endif /* __XEN_NETBACK__COMMON_H__ */ -- cgit v1.2.3-70-g09d2