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| author | David Vrabel <david.vrabel@citrix.com> | 2011-09-29 16:53:31 +0100 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-10-26 10:02:56 -0400 |
| commit | c9d6369978411f690513994e6e53e2e6410874a4 (patch) | |
| tree | a75b386938b3f8f993c774c06f0e7b2ae830c1de /drivers/net/xen-netback/common.h | |
| parent | 2d073846b891c3f49c4ea03c5db3ac92f92742f1 (diff) | |
| download | linux-c9d6369978411f690513994e6e53e2e6410874a4.tar.gz linux-c9d6369978411f690513994e6e53e2e6410874a4.tar.bz2 linux-c9d6369978411f690513994e6e53e2e6410874a4.zip | |
net: xen-netback: use API provided by xenbus module to map rings
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 <david.vrabel@citrix.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/net/xen-netback/common.h')
| -rw-r--r-- | drivers/net/xen-netback/common.h | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h index 161f207786a4..94b79c3338c4 100644 --- a/drivers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -58,10 +58,6 @@ struct xenvif { u8 fe_dev_addr[6]; /* Physical parameters of the comms window. */ - grant_handle_t tx_shmem_handle; - grant_ref_t tx_shmem_ref; - grant_handle_t rx_shmem_handle; - grant_ref_t rx_shmem_ref; unsigned int irq; /* List of frontends to notify after a batch of frames sent. */ @@ -70,8 +66,6 @@ struct xenvif { /* The shared rings and indexes. */ struct xen_netif_tx_back_ring tx; struct xen_netif_rx_back_ring rx; - struct vm_struct *tx_comms_area; - struct vm_struct *rx_comms_area; /* Frontend feature information. */ u8 can_sg:1; @@ -106,6 +100,11 @@ struct xenvif { wait_queue_head_t waiting_to_free; }; +static inline struct xenbus_device *xenvif_to_xenbus_device(struct xenvif *vif) +{ + return to_xenbus_device(vif->dev->dev.parent); +} + #define XEN_NETIF_TX_RING_SIZE __CONST_RING_SIZE(xen_netif_tx, PAGE_SIZE) #define XEN_NETIF_RX_RING_SIZE __CONST_RING_SIZE(xen_netif_rx, PAGE_SIZE) |