--- /dev/null
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * $Id: ipoib.h 1358 2004-12-17 22:00:11Z roland $
+ */
+
+#ifndef _IPOIB_H
+#define _IPOIB_H
+
+#include <linux/list.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/workqueue.h>
+#include <linux/pci.h>
+#include <linux/config.h>
+#include <linux/kref.h>
+#include <linux/if_infiniband.h>
+
+#include <net/neighbour.h>
+
+#include <asm/atomic.h>
+#include <asm/semaphore.h>
+
+#include <ib_verbs.h>
+#include <ib_pack.h>
+#include <ib_sa.h>
+
+/* constants */
+
+enum {
+ IPOIB_PACKET_SIZE = 2048,
+ IPOIB_BUF_SIZE = IPOIB_PACKET_SIZE + IB_GRH_BYTES,
+
+ IPOIB_ENCAP_LEN = 4,
+
+ IPOIB_RX_RING_SIZE = 128,
+ IPOIB_TX_RING_SIZE = 64,
+
+ IPOIB_NUM_WC = 4,
+
+ IPOIB_MAX_PATH_REC_QUEUE = 3,
+ IPOIB_MAX_MCAST_QUEUE = 3,
+
+ IPOIB_FLAG_OPER_UP = 0,
+ IPOIB_FLAG_ADMIN_UP = 1,
+ IPOIB_PKEY_ASSIGNED = 2,
+ IPOIB_PKEY_STOP = 3,
+ IPOIB_FLAG_SUBINTERFACE = 4,
+ IPOIB_MCAST_RUN = 5,
+ IPOIB_STOP_REAPER = 6,
+
+ IPOIB_MAX_BACKOFF_SECONDS = 16,
+
+ IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
+ IPOIB_MCAST_FLAG_SENDONLY = 1,
+ IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
+ IPOIB_MCAST_FLAG_ATTACHED = 3,
+};
+
+/* structs */
+
+struct ipoib_header {
+ u16 proto;
+ u16 reserved;
+};
+
+struct ipoib_pseudoheader {
+ u8 hwaddr[INFINIBAND_ALEN];
+};
+
+struct ipoib_mcast;
+
+struct ipoib_buf {
+ struct sk_buff *skb;
+ DECLARE_PCI_UNMAP_ADDR(mapping)
+};
+
+/*
+ * Device private locking: tx_lock protects members used in TX fast
+ * path (and we use LLTX so upper layers don't do extra locking).
+ * lock protects everything else. lock nests inside of tx_lock (ie
+ * tx_lock must be acquired first if needed).
+ */
+struct ipoib_dev_priv {
+ spinlock_t lock;
+
+ struct net_device *dev;
+
+ unsigned long flags;
+
+ struct semaphore mcast_mutex;
+ struct semaphore vlan_mutex;
+
+ struct rb_root path_tree;
+ struct list_head path_list;
+
+ struct ipoib_mcast *broadcast;
+ struct list_head multicast_list;
+ struct rb_root multicast_tree;
+
+ struct work_struct pkey_task;
+ struct work_struct mcast_task;
+ struct work_struct flush_task;
+ struct work_struct restart_task;
+ struct work_struct ah_reap_task;
+
+ struct ib_device *ca;
+ u8 port;
+ u16 pkey;
+ struct ib_pd *pd;
+ struct ib_mr *mr;
+ struct ib_cq *cq;
+ struct ib_qp *qp;
+ u32 qkey;
+
+ union ib_gid local_gid;
+ u16 local_lid;
+ u8 local_rate;
+
+ unsigned int admin_mtu;
+ unsigned int mcast_mtu;
+
+ struct ipoib_buf *rx_ring;
+
+ spinlock_t tx_lock;
+ struct ipoib_buf *tx_ring;
+ unsigned tx_head;
+ unsigned tx_tail;
+ struct ib_sge tx_sge;
+ struct ib_send_wr tx_wr;
+
+ struct ib_wc ibwc[IPOIB_NUM_WC];
+
+ struct list_head dead_ahs;
+
+ struct ib_event_handler event_handler;
+
+ struct net_device_stats stats;
+
+ struct net_device *parent;
+ struct list_head child_intfs;
+ struct list_head list;
+
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+ struct list_head fs_list;
+ struct dentry *mcg_dentry;
+#endif
+};
+
+struct ipoib_ah {
+ struct net_device *dev;
+ struct ib_ah *ah;
+ struct list_head list;
+ struct kref ref;
+ unsigned last_send;
+};
+
+struct ipoib_path {
+ struct net_device *dev;
+ struct ib_sa_path_rec pathrec;
+ struct ipoib_ah *ah;
+ struct sk_buff_head queue;
+
+ struct list_head neigh_list;
+
+ int query_id;
+ struct ib_sa_query *query;
+ struct completion done;
+
+ struct rb_node rb_node;
+ struct list_head list;
+};
+
+struct ipoib_neigh {
+ struct ipoib_ah *ah;
+ struct sk_buff_head queue;
+
+ struct neighbour *neighbour;
+
+ struct list_head list;
+};
+
+static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
+{
+ return (struct ipoib_neigh **) (neigh->ha + 24 -
+ (offsetof(struct neighbour, ha) & 4));
+}
+
+extern struct workqueue_struct *ipoib_workqueue;
+
+/* functions */
+
+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_add_pkey_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(void *dev_ptr);
+
+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(void *dev);
+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 ipoib_ib_dev_stop(struct net_device *dev);
+
+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(void *dev_ptr);
+void ipoib_mcast_send(struct net_device *dev, union ib_gid *mgid,
+ struct sk_buff *skb);
+
+void ipoib_mcast_restart_task(void *dev_ptr);
+int ipoib_mcast_start_thread(struct net_device *dev);
+int ipoib_mcast_stop_thread(struct net_device *dev);
+
+void ipoib_mcast_dev_down(struct net_device *dev);
+void ipoib_mcast_dev_flush(struct net_device *dev);
+
+struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev);
+void ipoib_mcast_iter_free(struct ipoib_mcast_iter *iter);
+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);
+
+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_qp_create(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(void *dev);
+int ipoib_pkey_dev_delay_open(struct net_device *dev);
+
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+int ipoib_create_debug_file(struct net_device *dev);
+void ipoib_delete_debug_file(struct net_device *dev);
+int ipoib_register_debugfs(void);
+void ipoib_unregister_debugfs(void);
+#else
+static inline int ipoib_create_debug_file(struct net_device *dev) { return 0; }
+static inline void ipoib_delete_debug_file(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)
+
+
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+extern int debug_level;
+
+#define ipoib_dbg(priv, format, arg...) \
+ do { \
+ if (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 "%x:%x:%x:%x:%x:%x:%x:%x"
+
+#define IPOIB_GID_ARG(gid) be16_to_cpup((__be16 *) ((gid).raw + 0)), \
+ be16_to_cpup((__be16 *) ((gid).raw + 2)), \
+ be16_to_cpup((__be16 *) ((gid).raw + 4)), \
+ be16_to_cpup((__be16 *) ((gid).raw + 6)), \
+ be16_to_cpup((__be16 *) ((gid).raw + 8)), \
+ be16_to_cpup((__be16 *) ((gid).raw + 10)), \
+ be16_to_cpup((__be16 *) ((gid).raw + 12)), \
+ be16_to_cpup((__be16 *) ((gid).raw + 14))
+
+#endif /* _IPOIB_H */
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