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__ */