diff options
Diffstat (limited to 'drivers/net/cxgb3/cxgb3_offload.h')
| -rw-r--r-- | drivers/net/cxgb3/cxgb3_offload.h | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/drivers/net/cxgb3/cxgb3_offload.h b/drivers/net/cxgb3/cxgb3_offload.h deleted file mode 100644 index 929c298115ca..000000000000 --- a/drivers/net/cxgb3/cxgb3_offload.h +++ /dev/null @@ -1,209 +0,0 @@ -/* - * Copyright (c) 2006-2008 Chelsio, Inc. 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. - */ -#ifndef _CXGB3_OFFLOAD_H -#define _CXGB3_OFFLOAD_H - -#include <linux/list.h> -#include <linux/skbuff.h> - -#include "l2t.h" - -#include "t3cdev.h" -#include "t3_cpl.h" - -struct adapter; - -void cxgb3_offload_init(void); - -void cxgb3_adapter_ofld(struct adapter *adapter); -void cxgb3_adapter_unofld(struct adapter *adapter); -int cxgb3_offload_activate(struct adapter *adapter); -void cxgb3_offload_deactivate(struct adapter *adapter); - -void cxgb3_set_dummy_ops(struct t3cdev *dev); - -struct t3cdev *dev2t3cdev(struct net_device *dev); - -/* - * Client registration. Users of T3 driver must register themselves. - * The T3 driver will call the add function of every client for each T3 - * adapter activated, passing up the t3cdev ptr. Each client fills out an - * array of callback functions to process CPL messages. - */ - -void cxgb3_register_client(struct cxgb3_client *client); -void cxgb3_unregister_client(struct cxgb3_client *client); -void cxgb3_add_clients(struct t3cdev *tdev); -void cxgb3_remove_clients(struct t3cdev *tdev); -void cxgb3_event_notify(struct t3cdev *tdev, u32 event, u32 port); - -typedef int (*cxgb3_cpl_handler_func)(struct t3cdev *dev, - struct sk_buff *skb, void *ctx); - -enum { - OFFLOAD_STATUS_UP, - OFFLOAD_STATUS_DOWN, - OFFLOAD_PORT_DOWN, - OFFLOAD_PORT_UP, - OFFLOAD_DB_FULL, - OFFLOAD_DB_EMPTY, - OFFLOAD_DB_DROP -}; - -struct cxgb3_client { - char *name; - void (*add) (struct t3cdev *); - void (*remove) (struct t3cdev *); - cxgb3_cpl_handler_func *handlers; - int (*redirect)(void *ctx, struct dst_entry *old, - struct dst_entry *new, struct l2t_entry *l2t); - struct list_head client_list; - void (*event_handler)(struct t3cdev *tdev, u32 event, u32 port); -}; - -/* - * TID allocation services. - */ -int cxgb3_alloc_atid(struct t3cdev *dev, struct cxgb3_client *client, - void *ctx); -int cxgb3_alloc_stid(struct t3cdev *dev, struct cxgb3_client *client, - void *ctx); -void *cxgb3_free_atid(struct t3cdev *dev, int atid); -void cxgb3_free_stid(struct t3cdev *dev, int stid); -void cxgb3_insert_tid(struct t3cdev *dev, struct cxgb3_client *client, - void *ctx, unsigned int tid); -void cxgb3_queue_tid_release(struct t3cdev *dev, unsigned int tid); -void cxgb3_remove_tid(struct t3cdev *dev, void *ctx, unsigned int tid); - -struct t3c_tid_entry { - struct cxgb3_client *client; - void *ctx; -}; - -/* CPL message priority levels */ -enum { - CPL_PRIORITY_DATA = 0, /* data messages */ - CPL_PRIORITY_SETUP = 1, /* connection setup messages */ - CPL_PRIORITY_TEARDOWN = 0, /* connection teardown messages */ - CPL_PRIORITY_LISTEN = 1, /* listen start/stop messages */ - CPL_PRIORITY_ACK = 1, /* RX ACK messages */ - CPL_PRIORITY_CONTROL = 1 /* offload control messages */ -}; - -/* Flags for return value of CPL message handlers */ -enum { - CPL_RET_BUF_DONE = 1, /* buffer processing done, buffer may be freed */ - CPL_RET_BAD_MSG = 2, /* bad CPL message (e.g., unknown opcode) */ - CPL_RET_UNKNOWN_TID = 4 /* unexpected unknown TID */ -}; - -typedef int (*cpl_handler_func)(struct t3cdev *dev, struct sk_buff *skb); - -/* - * Returns a pointer to the first byte of the CPL header in an sk_buff that - * contains a CPL message. - */ -static inline void *cplhdr(struct sk_buff *skb) -{ - return skb->data; -} - -void t3_register_cpl_handler(unsigned int opcode, cpl_handler_func h); - -union listen_entry { - struct t3c_tid_entry t3c_tid; - union listen_entry *next; -}; - -union active_open_entry { - struct t3c_tid_entry t3c_tid; - union active_open_entry *next; -}; - -/* - * Holds the size, base address, free list start, etc of the TID, server TID, - * and active-open TID tables for a offload device. - * The tables themselves are allocated dynamically. - */ -struct tid_info { - struct t3c_tid_entry *tid_tab; - unsigned int ntids; - atomic_t tids_in_use; - - union listen_entry *stid_tab; - unsigned int nstids; - unsigned int stid_base; - - union active_open_entry *atid_tab; - unsigned int natids; - unsigned int atid_base; - - /* - * The following members are accessed R/W so we put them in their own - * cache lines. - * - * XXX We could combine the atid fields above with the lock here since - * atids are use once (unlike other tids). OTOH the above fields are - * usually in cache due to tid_tab. - */ - spinlock_t atid_lock ____cacheline_aligned_in_smp; - union active_open_entry *afree; - unsigned int atids_in_use; - - spinlock_t stid_lock ____cacheline_aligned; - union listen_entry *sfree; - unsigned int stids_in_use; -}; - -struct t3c_data { - struct list_head list_node; - struct t3cdev *dev; - unsigned int tx_max_chunk; /* max payload for TX_DATA */ - unsigned int max_wrs; /* max in-flight WRs per connection */ - unsigned int nmtus; - const unsigned short *mtus; - struct tid_info tid_maps; - - struct t3c_tid_entry *tid_release_list; - spinlock_t tid_release_lock; - struct work_struct tid_release_task; - - struct sk_buff *nofail_skb; - unsigned int release_list_incomplete; -}; - -/* - * t3cdev -> t3c_data accessor - */ -#define T3C_DATA(dev) (*(struct t3c_data **)&(dev)->l4opt) - -#endif |