ipoib.h

linux内核源码

struct ipoib_neigh {
	struct ipoib_ah    *ah;
#ifdef CONFIG_INFINIBAND_IPOIB_CM
	struct ipoib_cm_tx *cm;
#endif
	union ib_gid        dgid;
	struct sk_buff_head queue;

	struct neighbour   *neighbour;
	struct net_device *dev;

	struct list_head    list;
};

/*
 * We stash a pointer to our private neighbour information after our
 * hardware address in neigh->ha.  The ALIGN() expression here makes
 * sure that this pointer is stored aligned so that an unaligned
 * load is not needed to dereference it.
 */
static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
{
	return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) +
				     INFINIBAND_ALEN, sizeof(void *));
}

struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh,
				      struct net_device *dev);
void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh);

extern struct workqueue_struct *ipoib_workqueue;

/* functions */

int ipoib_poll(struct napi_struct *napi, int budget);
void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);

struct ipoib_ah *ipoib_create_ah(struct net_device *dev,
				 struct ib_pd *pd, struct ib_ah_attr *attr);
void ipoib_free_ah(struct kref *kref);
static inline void ipoib_put_ah(struct ipoib_ah *ah)
{
	kref_put(&ah->ref, ipoib_free_ah);
}

int ipoib_open(struct net_device *dev);
int ipoib_add_pkey_attr(struct net_device *dev);
int ipoib_add_umcast_attr(struct net_device *dev);

void ipoib_send(struct net_device *dev, struct sk_buff *skb,
		struct ipoib_ah *address, u32 qpn);
void ipoib_reap_ah(struct work_struct *work);

void ipoib_flush_paths(struct net_device *dev);
struct ipoib_dev_priv *ipoib_intf_alloc(const char *format);

int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
void ipoib_ib_dev_flush(struct work_struct *work);
void ipoib_pkey_event(struct work_struct *work);
void ipoib_ib_dev_cleanup(struct net_device *dev);

int ipoib_ib_dev_open(struct net_device *dev);
int ipoib_ib_dev_up(struct net_device *dev);
int ipoib_ib_dev_down(struct net_device *dev, int flush);
int ipoib_ib_dev_stop(struct net_device *dev, int flush);

int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
void ipoib_dev_cleanup(struct net_device *dev);

void ipoib_mcast_join_task(struct work_struct *work);
void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb);

void ipoib_mcast_restart_task(struct work_struct *work);
int ipoib_mcast_start_thread(struct net_device *dev);
int ipoib_mcast_stop_thread(struct net_device *dev, int flush);

void ipoib_mcast_dev_down(struct net_device *dev);
void ipoib_mcast_dev_flush(struct net_device *dev);

#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter);
void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter,
				  union ib_gid *gid,
				  unsigned long *created,
				  unsigned int *queuelen,
				  unsigned int *complete,
				  unsigned int *send_only);

struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev);
int ipoib_path_iter_next(struct ipoib_path_iter *iter);
void ipoib_path_iter_read(struct ipoib_path_iter *iter,
			  struct ipoib_path *path);
#endif

int ipoib_mcast_attach(struct net_device *dev, u16 mlid,
		       union ib_gid *mgid);
int ipoib_mcast_detach(struct net_device *dev, u16 mlid,
		       union ib_gid *mgid);

int ipoib_init_qp(struct net_device *dev);
int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca);
void ipoib_transport_dev_cleanup(struct net_device *dev);

void ipoib_event(struct ib_event_handler *handler,
		 struct ib_event *record);

int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey);
int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey);

void ipoib_pkey_poll(struct work_struct *work);
int ipoib_pkey_dev_delay_open(struct net_device *dev);
void ipoib_drain_cq(struct net_device *dev);

#ifdef CONFIG_INFINIBAND_IPOIB_CM

#define IPOIB_FLAGS_RC          0x80
#define IPOIB_FLAGS_UC          0x40

/* We don't support UC connections at the moment */
#define IPOIB_CM_SUPPORTED(ha)   (ha[0] & (IPOIB_FLAGS_RC))

static inline int ipoib_cm_admin_enabled(struct net_device *dev)
{
	struct ipoib_dev_priv *priv = netdev_priv(dev);
	return IPOIB_CM_SUPPORTED(dev->dev_addr) &&
		test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
}

static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)
{
	struct ipoib_dev_priv *priv = netdev_priv(dev);
	return IPOIB_CM_SUPPORTED(n->ha) &&
		test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
}

static inline int ipoib_cm_up(struct ipoib_neigh *neigh)

{
	return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags);
}

static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
{
	return neigh->cm;
}

static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
{
	neigh->cm = tx;
}

void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
int ipoib_cm_dev_open(struct net_device *dev);
void ipoib_cm_dev_stop(struct net_device *dev);
int ipoib_cm_dev_init(struct net_device *dev);
int ipoib_cm_add_mode_attr(struct net_device *dev);
void ipoib_cm_dev_cleanup(struct net_device *dev);
struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
				    struct ipoib_neigh *neigh);
void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx);
void ipoib_cm_skb_too_long(struct net_device* dev, struct sk_buff *skb,
			   unsigned int mtu);
void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc);
void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc);
#else

struct ipoib_cm_tx;

static inline int ipoib_cm_admin_enabled(struct net_device *dev)
{
	return 0;
}
static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n)

{
	return 0;
}

static inline int ipoib_cm_up(struct ipoib_neigh *neigh)

{
	return 0;
}

static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh)
{
	return NULL;
}

static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx)
{
}

static inline
void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
{
	return;
}

static inline
int ipoib_cm_dev_open(struct net_device *dev)
{
	return 0;
}

static inline
void ipoib_cm_dev_stop(struct net_device *dev)
{
	return;
}

static inline
int ipoib_cm_dev_init(struct net_device *dev)
{
	return -ENOSYS;
}

static inline
void ipoib_cm_dev_cleanup(struct net_device *dev)
{
	return;
}

static inline
struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path,
				    struct ipoib_neigh *neigh)
{
	return NULL;
}

static inline
void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
{
	return;
}

static inline
int ipoib_cm_add_mode_attr(struct net_device *dev)
{
	return 0;
}

static inline void ipoib_cm_skb_too_long(struct net_device* dev, struct sk_buff *skb,
					 unsigned int mtu)
{
	dev_kfree_skb_any(skb);
}

static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
{
}

static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
{
}
#endif

#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
void ipoib_create_debug_files(struct net_device *dev);
void ipoib_delete_debug_files(struct net_device *dev);
int ipoib_register_debugfs(void);
void ipoib_unregister_debugfs(void);
#else
static inline void ipoib_create_debug_files(struct net_device *dev) { }
static inline void ipoib_delete_debug_files(struct net_device *dev) { }
static inline int ipoib_register_debugfs(void) { return 0; }
static inline void ipoib_unregister_debugfs(void) { }
#endif


#define ipoib_printk(level, priv, format, arg...)	\
	printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
#define ipoib_warn(priv, format, arg...)		\
	ipoib_printk(KERN_WARNING, priv, format , ## arg)

extern int ipoib_sendq_size;
extern int ipoib_recvq_size;

extern struct ib_sa_client ipoib_sa_client;

#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
extern int ipoib_debug_level;

#define ipoib_dbg(priv, format, arg...)			\
	do {					        \
		if (ipoib_debug_level > 0)			\
			ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
	} while (0)
#define ipoib_dbg_mcast(priv, format, arg...)		\
	do {					        \
		if (mcast_debug_level > 0)		\
			ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
	} while (0)
#else /* CONFIG_INFINIBAND_IPOIB_DEBUG */
#define ipoib_dbg(priv, format, arg...)			\
	do { (void) (priv); } while (0)
#define ipoib_dbg_mcast(priv, format, arg...)		\
	do { (void) (priv); } while (0)
#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */

#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA
#define ipoib_dbg_data(priv, format, arg...)		\
	do {					        \
		if (data_debug_level > 0)		\
			ipoib_printk(KERN_DEBUG, priv, format , ## arg); \
	} while (0)
#else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */
#define ipoib_dbg_data(priv, format, arg...)		\
	do { (void) (priv); } while (0)
#endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */


#define IPOIB_GID_FMT		"%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:" \
				"%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x:%2.2x%2.2x"

#define IPOIB_GID_RAW_ARG(gid)	((u8 *)(gid))[0], \
				((u8 *)(gid))[1], \
				((u8 *)(gid))[2], \
				((u8 *)(gid))[3], \
				((u8 *)(gid))[4], \
				((u8 *)(gid))[5], \
				((u8 *)(gid))[6], \
				((u8 *)(gid))[7], \
				((u8 *)(gid))[8], \
				((u8 *)(gid))[9], \
				((u8 *)(gid))[10],\
				((u8 *)(gid))[11],\
				((u8 *)(gid))[12],\
				((u8 *)(gid))[13],\
				((u8 *)(gid))[14],\
				((u8 *)(gid))[15]

#define IPOIB_GID_ARG(gid)	IPOIB_GID_RAW_ARG((gid).raw)

#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)

#endif /* _IPOIB_H */