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 void sas_scsi_recover_host(struct Scsi_Host *shost); 43 44 int sas_show_class(enum sas_class class, char *buf); 45 int sas_show_proto(enum sas_proto proto, char *buf); 46 int sas_show_linkrate(enum sas_linkrate linkrate, char *buf); 47 int sas_show_oob_mode(enum sas_oob_mode oob_mode, char *buf); 48 49 int sas_register_phys(struct sas_ha_struct *sas_ha); 50 void sas_unregister_phys(struct sas_ha_struct *sas_ha); 51 52 int sas_register_ports(struct sas_ha_struct *sas_ha); 53 void sas_unregister_ports(struct sas_ha_struct *sas_ha); 54 55 enum scsi_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *); 56 57 int sas_init_queue(struct sas_ha_struct *sas_ha); 58 int sas_init_events(struct sas_ha_struct *sas_ha); 59 void sas_shutdown_queue(struct sas_ha_struct *sas_ha); 60 61 void sas_deform_port(struct asd_sas_phy *phy); 62 63 void sas_porte_bytes_dmaed(struct work_struct *work); 64 void sas_porte_broadcast_rcvd(struct work_struct *work); 65 void sas_porte_link_reset_err(struct work_struct *work); 66 void sas_porte_timer_event(struct work_struct *work); 67 void sas_porte_hard_reset(struct work_struct *work); 68 69 int sas_notify_lldd_dev_found(struct domain_device *); 70 void sas_notify_lldd_dev_gone(struct domain_device *); 71 72 int sas_smp_phy_control(struct domain_device *dev, int phy_id, 73 enum phy_func phy_func, struct sas_phy_linkrates *); 74 int sas_smp_get_phy_events(struct sas_phy *phy); 75 76 struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy); 77 78 void sas_hae_reset(struct work_struct *work); 79 80 static inline void sas_queue_event(int event, spinlock_t *lock, 81 unsigned long *pending, 82 struct work_struct *work, 83 struct sas_ha_struct *sas_ha) 84 { 85 unsigned long flags; 86 87 spin_lock_irqsave(lock, flags); 88 if (test_bit(event, pending)) { 89 spin_unlock_irqrestore(lock, flags); 90 return; 91 } 92 __set_bit(event, pending); 93 spin_unlock_irqrestore(lock, flags); 94 95 spin_lock_irqsave(&sas_ha->state_lock, flags); 96 if (sas_ha->state != SAS_HA_UNREGISTERED) { 97 scsi_queue_work(sas_ha->core.shost, work); 98 } 99 spin_unlock_irqrestore(&sas_ha->state_lock, flags); 100 } 101 102 static inline void sas_begin_event(int event, spinlock_t *lock, 103 unsigned long *pending) 104 { 105 unsigned long flags; 106 107 spin_lock_irqsave(lock, flags); 108 __clear_bit(event, pending); 109 spin_unlock_irqrestore(lock, flags); 110 } 111 112 static inline void sas_fill_in_rphy(struct domain_device *dev, 113 struct sas_rphy *rphy) 114 { 115 rphy->identify.sas_address = SAS_ADDR(dev->sas_addr); 116 rphy->identify.initiator_port_protocols = dev->iproto; 117 rphy->identify.target_port_protocols = dev->tproto; 118 switch (dev->dev_type) { 119 case SATA_DEV: 120 /* FIXME: need sata device type */ 121 case SAS_END_DEV: 122 rphy->identify.device_type = SAS_END_DEVICE; 123 break; 124 case EDGE_DEV: 125 rphy->identify.device_type = SAS_EDGE_EXPANDER_DEVICE; 126 break; 127 case FANOUT_DEV: 128 rphy->identify.device_type = SAS_FANOUT_EXPANDER_DEVICE; 129 break; 130 default: 131 rphy->identify.device_type = SAS_PHY_UNUSED; 132 break; 133 } 134 } 135 136 static inline void sas_add_parent_port(struct domain_device *dev, int phy_id) 137 { 138 struct expander_device *ex = &dev->ex_dev; 139 struct ex_phy *ex_phy = &ex->ex_phy[phy_id]; 140 141 if (!ex->parent_port) { 142 ex->parent_port = sas_port_alloc(&dev->rphy->dev, phy_id); 143 /* FIXME: error handling */ 144 BUG_ON(!ex->parent_port); 145 BUG_ON(sas_port_add(ex->parent_port)); 146 sas_port_mark_backlink(ex->parent_port); 147 } 148 sas_port_add_phy(ex->parent_port, ex_phy->phy); 149 } 150 151 #endif /* _SAS_INTERNAL_H_ */ 152