1 /* 2 * Serial Attached SCSI (SAS) class internal header file 3 * 4 * Copyright (C) 2005 Adaptec, Inc. All rights reserved. 5 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com> 6 * 7 * This file is licensed under GPLv2. 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License as 11 * published by the Free Software Foundation; either version 2 of the 12 * License, or (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, but 15 * WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 22 * USA 23 * 24 */ 25 26 #ifndef _SAS_INTERNAL_H_ 27 #define _SAS_INTERNAL_H_ 28 29 #include <scsi/scsi.h> 30 #include <scsi/scsi_host.h> 31 #include <scsi/scsi_transport_sas.h> 32 #include <scsi/libsas.h> 33 34 #define sas_printk(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__) 35 36 #ifdef SAS_DEBUG 37 #define SAS_DPRINTK(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__) 38 #else 39 #define SAS_DPRINTK(fmt, ...) 40 #endif 41 42 #define TO_SAS_TASK(_scsi_cmd) ((void *)(_scsi_cmd)->host_scribble) 43 #define ASSIGN_SAS_TASK(_sc, _t) do { (_sc)->host_scribble = (void *) _t; } while (0) 44 45 void sas_scsi_recover_host(struct Scsi_Host *shost); 46 47 int sas_show_class(enum sas_class class, char *buf); 48 int sas_show_proto(enum sas_proto proto, char *buf); 49 int sas_show_linkrate(enum sas_linkrate linkrate, char *buf); 50 int sas_show_oob_mode(enum sas_oob_mode oob_mode, char *buf); 51 52 int sas_register_phys(struct sas_ha_struct *sas_ha); 53 void sas_unregister_phys(struct sas_ha_struct *sas_ha); 54 55 int sas_register_ports(struct sas_ha_struct *sas_ha); 56 void sas_unregister_ports(struct sas_ha_struct *sas_ha); 57 58 enum scsi_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *); 59 60 int sas_init_queue(struct sas_ha_struct *sas_ha); 61 int sas_init_events(struct sas_ha_struct *sas_ha); 62 void sas_shutdown_queue(struct sas_ha_struct *sas_ha); 63 64 void sas_deform_port(struct asd_sas_phy *phy); 65 66 void sas_porte_bytes_dmaed(struct work_struct *work); 67 void sas_porte_broadcast_rcvd(struct work_struct *work); 68 void sas_porte_link_reset_err(struct work_struct *work); 69 void sas_porte_timer_event(struct work_struct *work); 70 void sas_porte_hard_reset(struct work_struct *work); 71 72 int sas_notify_lldd_dev_found(struct domain_device *); 73 void sas_notify_lldd_dev_gone(struct domain_device *); 74 75 int sas_smp_phy_control(struct domain_device *dev, int phy_id, 76 enum phy_func phy_func, struct sas_phy_linkrates *); 77 int sas_smp_get_phy_events(struct sas_phy *phy); 78 79 struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy); 80 81 void sas_hae_reset(struct work_struct *work); 82 83 static inline void sas_queue_event(int event, spinlock_t *lock, 84 unsigned long *pending, 85 struct work_struct *work, 86 struct sas_ha_struct *sas_ha) 87 { 88 unsigned long flags; 89 90 spin_lock_irqsave(lock, flags); 91 if (test_bit(event, pending)) { 92 spin_unlock_irqrestore(lock, flags); 93 return; 94 } 95 __set_bit(event, pending); 96 spin_unlock_irqrestore(lock, flags); 97 98 spin_lock_irqsave(&sas_ha->state_lock, flags); 99 if (sas_ha->state != SAS_HA_UNREGISTERED) { 100 scsi_queue_work(sas_ha->core.shost, work); 101 } 102 spin_unlock_irqrestore(&sas_ha->state_lock, flags); 103 } 104 105 static inline void sas_begin_event(int event, spinlock_t *lock, 106 unsigned long *pending) 107 { 108 unsigned long flags; 109 110 spin_lock_irqsave(lock, flags); 111 __clear_bit(event, pending); 112 spin_unlock_irqrestore(lock, flags); 113 } 114 115 static inline void sas_fill_in_rphy(struct domain_device *dev, 116 struct sas_rphy *rphy) 117 { 118 rphy->identify.sas_address = SAS_ADDR(dev->sas_addr); 119 rphy->identify.initiator_port_protocols = dev->iproto; 120 rphy->identify.target_port_protocols = dev->tproto; 121 switch (dev->dev_type) { 122 case SATA_DEV: 123 /* FIXME: need sata device type */ 124 case SAS_END_DEV: 125 rphy->identify.device_type = SAS_END_DEVICE; 126 break; 127 case EDGE_DEV: 128 rphy->identify.device_type = SAS_EDGE_EXPANDER_DEVICE; 129 break; 130 case FANOUT_DEV: 131 rphy->identify.device_type = SAS_FANOUT_EXPANDER_DEVICE; 132 break; 133 default: 134 rphy->identify.device_type = SAS_PHY_UNUSED; 135 break; 136 } 137 } 138 139 static inline void sas_add_parent_port(struct domain_device *dev, int phy_id) 140 { 141 struct expander_device *ex = &dev->ex_dev; 142 struct ex_phy *ex_phy = &ex->ex_phy[phy_id]; 143 144 if (!ex->parent_port) { 145 ex->parent_port = sas_port_alloc(&dev->rphy->dev, phy_id); 146 /* FIXME: error handling */ 147 BUG_ON(!ex->parent_port); 148 BUG_ON(sas_port_add(ex->parent_port)); 149 sas_port_mark_backlink(ex->parent_port); 150 } 151 sas_port_add_phy(ex->parent_port, ex_phy->phy); 152 } 153 154 #endif /* _SAS_INTERNAL_H_ */ 155