1/*
2 * This file is part of the Chelsio FCoE driver for Linux.
3 *
4 * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses.  You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 *     Redistribution and use in source and binary forms, with or
13 *     without modification, are permitted provided that the following
14 *     conditions are met:
15 *
16 *      - Redistributions of source code must retain the above
17 *        copyright notice, this list of conditions and the following
18 *        disclaimer.
19 *
20 *      - Redistributions in binary form must reproduce the above
21 *        copyright notice, this list of conditions and the following
22 *        disclaimer in the documentation and/or other materials
23 *        provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 */
34
35#ifndef __CSIO_INIT_H__
36#define __CSIO_INIT_H__
37
38#include <linux/pci.h>
39#include <linux/if_ether.h>
40#include <scsi/scsi.h>
41#include <scsi/scsi_device.h>
42#include <scsi/scsi_host.h>
43#include <scsi/scsi_transport_fc.h>
44
45#include "csio_scsi.h"
46#include "csio_lnode.h"
47#include "csio_rnode.h"
48#include "csio_hw.h"
49
50#define CSIO_DRV_AUTHOR			"Chelsio Communications"
51#define CSIO_DRV_LICENSE		"Dual BSD/GPL"
52#define CSIO_DRV_DESC			"Chelsio FCoE driver"
53#define CSIO_DRV_VERSION		"1.0.0"
54
55extern struct fc_function_template csio_fc_transport_funcs;
56extern struct fc_function_template csio_fc_transport_vport_funcs;
57
58void csio_fchost_attr_init(struct csio_lnode *);
59
60/* INTx handlers */
61void csio_scsi_intx_handler(struct csio_hw *, void *, uint32_t,
62			       struct csio_fl_dma_buf *, void *);
63
64void csio_fwevt_intx_handler(struct csio_hw *, void *, uint32_t,
65				struct csio_fl_dma_buf *, void *);
66
67/* Common os lnode APIs */
68void csio_lnodes_block_request(struct csio_hw *);
69void csio_lnodes_unblock_request(struct csio_hw *);
70void csio_lnodes_block_by_port(struct csio_hw *, uint8_t);
71void csio_lnodes_unblock_by_port(struct csio_hw *, uint8_t);
72
73struct csio_lnode *csio_shost_init(struct csio_hw *, struct device *, bool,
74					struct csio_lnode *);
75void csio_shost_exit(struct csio_lnode *);
76void csio_lnodes_exit(struct csio_hw *, bool);
77
78/* DebugFS helper routines */
79void csio_add_debugfs_mem(struct csio_hw *, const char *,
80		unsigned int, unsigned int);
81
82static inline struct Scsi_Host *
83csio_ln_to_shost(struct csio_lnode *ln)
84{
85	return container_of((void *)ln, struct Scsi_Host, hostdata[0]);
86}
87
88/* SCSI -- locking version of get/put ioreqs  */
89static inline struct csio_ioreq *
90csio_get_scsi_ioreq_lock(struct csio_hw *hw, struct csio_scsim *scsim)
91{
92	struct csio_ioreq *ioreq;
93	unsigned long flags;
94
95	spin_lock_irqsave(&scsim->freelist_lock, flags);
96	ioreq = csio_get_scsi_ioreq(scsim);
97	spin_unlock_irqrestore(&scsim->freelist_lock, flags);
98
99	return ioreq;
100}
101
102static inline void
103csio_put_scsi_ioreq_lock(struct csio_hw *hw, struct csio_scsim *scsim,
104			 struct csio_ioreq *ioreq)
105{
106	unsigned long flags;
107
108	spin_lock_irqsave(&scsim->freelist_lock, flags);
109	csio_put_scsi_ioreq(scsim, ioreq);
110	spin_unlock_irqrestore(&scsim->freelist_lock, flags);
111}
112
113/* Called in interrupt context */
114static inline void
115csio_put_scsi_ioreq_list_lock(struct csio_hw *hw, struct csio_scsim *scsim,
116			      struct list_head *reqlist, int n)
117{
118	unsigned long flags;
119
120	spin_lock_irqsave(&scsim->freelist_lock, flags);
121	csio_put_scsi_ioreq_list(scsim, reqlist, n);
122	spin_unlock_irqrestore(&scsim->freelist_lock, flags);
123}
124
125/* Called in interrupt context */
126static inline void
127csio_put_scsi_ddp_list_lock(struct csio_hw *hw, struct csio_scsim *scsim,
128			      struct list_head *reqlist, int n)
129{
130	unsigned long flags;
131
132	spin_lock_irqsave(&hw->lock, flags);
133	csio_put_scsi_ddp_list(scsim, reqlist, n);
134	spin_unlock_irqrestore(&hw->lock, flags);
135}
136
137#endif /* ifndef __CSIO_INIT_H__ */
138