James Bottomley | 2908d77 | 2006-08-29 09:22:51 -0500 | [diff] [blame] | 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 | |
James Bottomley | 96db6fa | 2011-01-23 08:19:00 -0600 | [diff] [blame] | 36 | #define SAS_DPRINTK(fmt, ...) printk(KERN_DEBUG "sas: " fmt, ## __VA_ARGS__) |
James Bottomley | 2908d77 | 2006-08-29 09:22:51 -0500 | [diff] [blame] | 37 | |
Darrick J. Wong | 3a2755a | 2007-01-30 01:18:58 -0800 | [diff] [blame] | 38 | #define TO_SAS_TASK(_scsi_cmd) ((void *)(_scsi_cmd)->host_scribble) |
| 39 | #define ASSIGN_SAS_TASK(_sc, _t) do { (_sc)->host_scribble = (void *) _t; } while (0) |
| 40 | |
James Bottomley | 2908d77 | 2006-08-29 09:22:51 -0500 | [diff] [blame] | 41 | void sas_scsi_recover_host(struct Scsi_Host *shost); |
| 42 | |
| 43 | int sas_show_class(enum sas_class class, char *buf); |
Darrick J. Wong | 5929faf | 2007-11-05 11:51:17 -0800 | [diff] [blame] | 44 | int sas_show_proto(enum sas_protocol proto, char *buf); |
James Bottomley | 88edf74 | 2006-09-06 17:36:13 -0500 | [diff] [blame] | 45 | int sas_show_linkrate(enum sas_linkrate linkrate, char *buf); |
James Bottomley | 2908d77 | 2006-08-29 09:22:51 -0500 | [diff] [blame] | 46 | int sas_show_oob_mode(enum sas_oob_mode oob_mode, char *buf); |
| 47 | |
| 48 | int sas_register_phys(struct sas_ha_struct *sas_ha); |
| 49 | void sas_unregister_phys(struct sas_ha_struct *sas_ha); |
| 50 | |
| 51 | int sas_register_ports(struct sas_ha_struct *sas_ha); |
| 52 | void sas_unregister_ports(struct sas_ha_struct *sas_ha); |
| 53 | |
Jens Axboe | 242f9dc | 2008-09-14 05:55:09 -0700 | [diff] [blame] | 54 | enum blk_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *); |
James Bottomley | 2908d77 | 2006-08-29 09:22:51 -0500 | [diff] [blame] | 55 | |
| 56 | int sas_init_queue(struct sas_ha_struct *sas_ha); |
| 57 | int sas_init_events(struct sas_ha_struct *sas_ha); |
| 58 | void sas_shutdown_queue(struct sas_ha_struct *sas_ha); |
| 59 | |
Dan Williams | 90f1e10 | 2011-05-24 13:17:53 -0700 | [diff] [blame] | 60 | void sas_deform_port(struct asd_sas_phy *phy, int gone); |
James Bottomley | 2908d77 | 2006-08-29 09:22:51 -0500 | [diff] [blame] | 61 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 62 | void sas_porte_bytes_dmaed(struct work_struct *work); |
| 63 | void sas_porte_broadcast_rcvd(struct work_struct *work); |
| 64 | void sas_porte_link_reset_err(struct work_struct *work); |
| 65 | void sas_porte_timer_event(struct work_struct *work); |
| 66 | void sas_porte_hard_reset(struct work_struct *work); |
James Bottomley | 2908d77 | 2006-08-29 09:22:51 -0500 | [diff] [blame] | 67 | |
| 68 | int sas_notify_lldd_dev_found(struct domain_device *); |
| 69 | void sas_notify_lldd_dev_gone(struct domain_device *); |
| 70 | |
| 71 | int sas_smp_phy_control(struct domain_device *dev, int phy_id, |
James Bottomley | a01e70e | 2006-09-06 19:28:07 -0500 | [diff] [blame] | 72 | enum phy_func phy_func, struct sas_phy_linkrates *); |
James Bottomley | 2908d77 | 2006-08-29 09:22:51 -0500 | [diff] [blame] | 73 | int sas_smp_get_phy_events(struct sas_phy *phy); |
| 74 | |
| 75 | struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy); |
| 76 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 77 | void sas_hae_reset(struct work_struct *work); |
James Bottomley | 2908d77 | 2006-08-29 09:22:51 -0500 | [diff] [blame] | 78 | |
James Bottomley | b98e66f | 2007-12-28 16:35:17 -0600 | [diff] [blame] | 79 | #ifdef CONFIG_SCSI_SAS_HOST_SMP |
| 80 | extern int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req, |
| 81 | struct request *rsp); |
| 82 | #else |
| 83 | static inline int sas_smp_host_handler(struct Scsi_Host *shost, |
| 84 | struct request *req, |
| 85 | struct request *rsp) |
| 86 | { |
| 87 | shost_printk(KERN_ERR, shost, |
| 88 | "Cannot send SMP to a sas host (not enabled in CONFIG)\n"); |
| 89 | return -EINVAL; |
| 90 | } |
| 91 | #endif |
| 92 | |
James Bottomley | 2908d77 | 2006-08-29 09:22:51 -0500 | [diff] [blame] | 93 | static inline void sas_queue_event(int event, spinlock_t *lock, |
| 94 | unsigned long *pending, |
| 95 | struct work_struct *work, |
Darrick J. Wong | 6b0efb8 | 2007-01-11 14:15:43 -0800 | [diff] [blame] | 96 | struct sas_ha_struct *sas_ha) |
James Bottomley | 2908d77 | 2006-08-29 09:22:51 -0500 | [diff] [blame] | 97 | { |
| 98 | unsigned long flags; |
| 99 | |
| 100 | spin_lock_irqsave(lock, flags); |
| 101 | if (test_bit(event, pending)) { |
| 102 | spin_unlock_irqrestore(lock, flags); |
| 103 | return; |
| 104 | } |
| 105 | __set_bit(event, pending); |
| 106 | spin_unlock_irqrestore(lock, flags); |
Darrick J. Wong | 6b0efb8 | 2007-01-11 14:15:43 -0800 | [diff] [blame] | 107 | |
| 108 | spin_lock_irqsave(&sas_ha->state_lock, flags); |
| 109 | if (sas_ha->state != SAS_HA_UNREGISTERED) { |
| 110 | scsi_queue_work(sas_ha->core.shost, work); |
| 111 | } |
| 112 | spin_unlock_irqrestore(&sas_ha->state_lock, flags); |
James Bottomley | 2908d77 | 2006-08-29 09:22:51 -0500 | [diff] [blame] | 113 | } |
| 114 | |
| 115 | static inline void sas_begin_event(int event, spinlock_t *lock, |
| 116 | unsigned long *pending) |
| 117 | { |
| 118 | unsigned long flags; |
| 119 | |
| 120 | spin_lock_irqsave(lock, flags); |
| 121 | __clear_bit(event, pending); |
| 122 | spin_unlock_irqrestore(lock, flags); |
| 123 | } |
| 124 | |
| 125 | static inline void sas_fill_in_rphy(struct domain_device *dev, |
| 126 | struct sas_rphy *rphy) |
| 127 | { |
| 128 | rphy->identify.sas_address = SAS_ADDR(dev->sas_addr); |
| 129 | rphy->identify.initiator_port_protocols = dev->iproto; |
| 130 | rphy->identify.target_port_protocols = dev->tproto; |
| 131 | switch (dev->dev_type) { |
| 132 | case SATA_DEV: |
| 133 | /* FIXME: need sata device type */ |
| 134 | case SAS_END_DEV: |
| 135 | rphy->identify.device_type = SAS_END_DEVICE; |
| 136 | break; |
| 137 | case EDGE_DEV: |
| 138 | rphy->identify.device_type = SAS_EDGE_EXPANDER_DEVICE; |
| 139 | break; |
| 140 | case FANOUT_DEV: |
| 141 | rphy->identify.device_type = SAS_FANOUT_EXPANDER_DEVICE; |
| 142 | break; |
| 143 | default: |
| 144 | rphy->identify.device_type = SAS_PHY_UNUSED; |
| 145 | break; |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | static inline void sas_add_parent_port(struct domain_device *dev, int phy_id) |
| 150 | { |
| 151 | struct expander_device *ex = &dev->ex_dev; |
| 152 | struct ex_phy *ex_phy = &ex->ex_phy[phy_id]; |
| 153 | |
| 154 | if (!ex->parent_port) { |
| 155 | ex->parent_port = sas_port_alloc(&dev->rphy->dev, phy_id); |
| 156 | /* FIXME: error handling */ |
| 157 | BUG_ON(!ex->parent_port); |
| 158 | BUG_ON(sas_port_add(ex->parent_port)); |
| 159 | sas_port_mark_backlink(ex->parent_port); |
| 160 | } |
| 161 | sas_port_add_phy(ex->parent_port, ex_phy->phy); |
| 162 | } |
| 163 | |
| 164 | #endif /* _SAS_INTERNAL_H_ */ |