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Commit 4c521e42 authored by David S. Miller's avatar David S. Miller
Browse files

[SPARC64]: Add Sun LDOM virtual network driver. 



Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e53e97ce

drivers/net/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -604,6 +604,12 @@ config CASSINI 
	  Support for the Sun Cassini chip, aka Sun GigaSwift Ethernet. See also

	  <http://www.sun.com/products-n-solutions/hardware/docs/pdf/817-4341-10.pdf>



config SUNVNET

	tristate "Sun Virtual Network support"

	depends on SUN_LDOMS

	help

	  Support for virtual network devices under Sun Logical Domains.



config NET_VENDOR_3COM

	bool "3COM cards"

	depends on ISA || EISA || MCA || PCI

drivers/net/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ obj-$(CONFIG_SUNBMAC) += sunbmac.o 
obj-$(CONFIG_MYRI_SBUS) += myri_sbus.o

obj-$(CONFIG_SUNGEM) += sungem.o sungem_phy.o

obj-$(CONFIG_CASSINI) += cassini.o

obj-$(CONFIG_SUNVNET) += sunvnet.o



obj-$(CONFIG_MACE) += mace.o

obj-$(CONFIG_BMAC) += bmac.o

drivers/net/sunvnet.c

0 → 100644
+1156 −0

File added.

Preview size limit exceeded, changes collapsed.

drivers/net/sunvnet.h

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+70 −0
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#ifndef _SUNVNET_H

#define _SUNVNET_H



#define DESC_NCOOKIES(entry_size)	\

	((entry_size) - sizeof(struct vio_net_desc))



/* length of time before we decide the hardware is borked,

 * and dev->tx_timeout() should be called to fix the problem

 */

#define VNET_TX_TIMEOUT			(5 * HZ)



#define VNET_TX_RING_SIZE		512

#define VNET_TX_WAKEUP_THRESH(dr)	((dr)->pending / 4)



/* VNET packets are sent in buffers with the first 6 bytes skipped

 * so that after the ethernet header the IPv4/IPv6 headers are aligned

 * properly.

 */

#define VNET_PACKET_SKIP		6



struct vnet_tx_entry {

	void			*buf;

	unsigned int		ncookies;

	struct ldc_trans_cookie	cookies[2];

};



struct vnet;

struct vnet_port {

	struct vio_driver_state	vio;



	struct hlist_node	hash;

	u8			raddr[ETH_ALEN];



	struct vnet		*vp;



	struct vnet_tx_entry	tx_bufs[VNET_TX_RING_SIZE];



	struct list_head	list;

};



static inline struct vnet_port *to_vnet_port(struct vio_driver_state *vio)

{

	return container_of(vio, struct vnet_port, vio);

}



#define VNET_PORT_HASH_SIZE	16

#define VNET_PORT_HASH_MASK	(VNET_PORT_HASH_SIZE - 1)



static inline unsigned int vnet_hashfn(u8 *mac)

{

	unsigned int val = mac[4] ^ mac[5];



	return val & (VNET_PORT_HASH_MASK);

}



struct vnet {

	/* Protects port_list and port_hash.  */

	spinlock_t		lock;



	struct net_device	*dev;



	u32			msg_enable;

	struct vio_dev		*vdev;



	struct list_head	port_list;



	struct hlist_head	port_hash[VNET_PORT_HASH_SIZE];

};



#endif /* _SUNVNET_H */