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-ko" 54 55 extern struct fc_function_template csio_fc_transport_funcs; 56 extern struct fc_function_template csio_fc_transport_vport_funcs; 57 58 void csio_fchost_attr_init(struct csio_lnode *); 59 60 /* INTx handlers */ 61 void csio_scsi_intx_handler(struct csio_hw *, void *, uint32_t, 62 struct csio_fl_dma_buf *, void *); 63 64 void csio_fwevt_intx_handler(struct csio_hw *, void *, uint32_t, 65 struct csio_fl_dma_buf *, void *); 66 67 /* Common os lnode APIs */ 68 void csio_lnodes_block_request(struct csio_hw *); 69 void csio_lnodes_unblock_request(struct csio_hw *); 70 void csio_lnodes_block_by_port(struct csio_hw *, uint8_t); 71 void csio_lnodes_unblock_by_port(struct csio_hw *, uint8_t); 72 73 struct csio_lnode *csio_shost_init(struct csio_hw *, struct device *, bool, 74 struct csio_lnode *); 75 void csio_shost_exit(struct csio_lnode *); 76 void csio_lnodes_exit(struct csio_hw *, bool); 77 78 /* DebugFS helper routines */ 79 void csio_add_debugfs_mem(struct csio_hw *, const char *, 80 unsigned int, unsigned int); 81 82 static inline struct Scsi_Host * 83 csio_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 */ 89 static inline struct csio_ioreq * 90 csio_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 } 101 102 static inline void 103 csio_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 */ 114 static inline void 115 csio_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 */ 126 static inline void 127 csio_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