--- /dev/null
+/*
+ * Serial Attached SCSI (SAS) class internal header file
+ *
+ * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ *
+ */
+
+#ifndef _SAS_INTERNAL_H_
+#define _SAS_INTERNAL_H_
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_sas.h>
+#include <scsi/libsas.h>
+#include <scsi/sas_ata.h>
+
+#define sas_printk(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
+
+#define SAS_DPRINTK(fmt, ...) printk(KERN_DEBUG "sas: " fmt, ## __VA_ARGS__)
+
+#define TO_SAS_TASK(_scsi_cmd) ((void *)(_scsi_cmd)->host_scribble)
+#define ASSIGN_SAS_TASK(_sc, _t) do { (_sc)->host_scribble = (void *) _t; } while (0)
+
+struct sas_phy_data {
+ /* let reset be performed in sas_queue_work() context */
+ struct sas_phy *phy;
+ struct mutex event_lock;
+ int hard_reset;
+ int reset_result;
+ struct sas_work reset_work;
+ int enable;
+ int enable_result;
+ struct sas_work enable_work;
+};
+
+void sas_scsi_recover_host(struct Scsi_Host *shost);
+
+int sas_show_class(enum sas_class class, char *buf);
+int sas_show_proto(enum sas_protocol proto, char *buf);
+int sas_show_linkrate(enum sas_linkrate linkrate, char *buf);
+int sas_show_oob_mode(enum sas_oob_mode oob_mode, char *buf);
+
+int sas_register_phys(struct sas_ha_struct *sas_ha);
+void sas_unregister_phys(struct sas_ha_struct *sas_ha);
+
+int sas_register_ports(struct sas_ha_struct *sas_ha);
+void sas_unregister_ports(struct sas_ha_struct *sas_ha);
+
+enum blk_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *);
+
+int sas_init_events(struct sas_ha_struct *sas_ha);
+void sas_disable_revalidation(struct sas_ha_struct *ha);
+void sas_enable_revalidation(struct sas_ha_struct *ha);
+void __sas_drain_work(struct sas_ha_struct *ha);
+
+void sas_deform_port(struct asd_sas_phy *phy, int gone);
+
+void sas_porte_bytes_dmaed(struct work_struct *work);
+void sas_porte_broadcast_rcvd(struct work_struct *work);
+void sas_porte_link_reset_err(struct work_struct *work);
+void sas_porte_timer_event(struct work_struct *work);
+void sas_porte_hard_reset(struct work_struct *work);
+void sas_queue_work(struct sas_ha_struct *ha, struct sas_work *sw);
+
+int sas_notify_lldd_dev_found(struct domain_device *);
+void sas_notify_lldd_dev_gone(struct domain_device *);
+
+int sas_smp_phy_control(struct domain_device *dev, int phy_id,
+ enum phy_func phy_func, struct sas_phy_linkrates *);
+int sas_smp_get_phy_events(struct sas_phy *phy);
+
+void sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event);
+void sas_device_set_phy(struct domain_device *dev, struct sas_port *port);
+struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy);
+struct domain_device *sas_ex_to_ata(struct domain_device *ex_dev, int phy_id);
+int sas_ex_phy_discover(struct domain_device *dev, int single);
+int sas_get_report_phy_sata(struct domain_device *dev, int phy_id,
+ struct smp_resp *rps_resp);
+int sas_try_ata_reset(struct asd_sas_phy *phy);
+void sas_hae_reset(struct work_struct *work);
+
+void sas_free_device(struct kref *kref);
+
+#ifdef CONFIG_SCSI_SAS_HOST_SMP
+extern int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req,
+ struct request *rsp);
+#else
+static inline int sas_smp_host_handler(struct Scsi_Host *shost,
+ struct request *req,
+ struct request *rsp)
+{
+ shost_printk(KERN_ERR, shost,
+ "Cannot send SMP to a sas host (not enabled in CONFIG)\n");
+ return -EINVAL;
+}
+#endif
+
+static inline void sas_fail_probe(struct domain_device *dev, const char *func, int err)
+{
+ SAS_DPRINTK("%s: for %s device %16llx returned %d\n",
+ func, dev->parent ? "exp-attached" :
+ "direct-attached",
+ SAS_ADDR(dev->sas_addr), err);
+ sas_unregister_dev(dev->port, dev);
+}
+
+static inline void sas_fill_in_rphy(struct domain_device *dev,
+ struct sas_rphy *rphy)
+{
+ rphy->identify.sas_address = SAS_ADDR(dev->sas_addr);
+ rphy->identify.initiator_port_protocols = dev->iproto;
+ rphy->identify.target_port_protocols = dev->tproto;
+ switch (dev->dev_type) {
+ case SAS_SATA_DEV:
+ /* FIXME: need sata device type */
+ case SAS_END_DEVICE:
+ case SAS_SATA_PENDING:
+ rphy->identify.device_type = SAS_END_DEVICE;
+ break;
+ case SAS_EDGE_EXPANDER_DEVICE:
+ rphy->identify.device_type = SAS_EDGE_EXPANDER_DEVICE;
+ break;
+ case SAS_FANOUT_EXPANDER_DEVICE:
+ rphy->identify.device_type = SAS_FANOUT_EXPANDER_DEVICE;
+ break;
+ default:
+ rphy->identify.device_type = SAS_PHY_UNUSED;
+ break;
+ }
+}
+
+static inline void sas_phy_set_target(struct asd_sas_phy *p, struct domain_device *dev)
+{
+ struct sas_phy *phy = p->phy;
+
+ if (dev) {
+ if (dev_is_sata(dev))
+ phy->identify.device_type = SAS_END_DEVICE;
+ else
+ phy->identify.device_type = dev->dev_type;
+ phy->identify.target_port_protocols = dev->tproto;
+ } else {
+ phy->identify.device_type = SAS_PHY_UNUSED;
+ phy->identify.target_port_protocols = 0;
+ }
+}
+
+static inline void sas_add_parent_port(struct domain_device *dev, int phy_id)
+{
+ struct expander_device *ex = &dev->ex_dev;
+ struct ex_phy *ex_phy = &ex->ex_phy[phy_id];
+
+ if (!ex->parent_port) {
+ ex->parent_port = sas_port_alloc(&dev->rphy->dev, phy_id);
+ /* FIXME: error handling */
+ BUG_ON(!ex->parent_port);
+ BUG_ON(sas_port_add(ex->parent_port));
+ sas_port_mark_backlink(ex->parent_port);
+ }
+ sas_port_add_phy(ex->parent_port, ex_phy->phy);
+}
+
+static inline struct domain_device *sas_alloc_device(void)
+{
+ struct domain_device *dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+
+ if (dev) {
+ INIT_LIST_HEAD(&dev->siblings);
+ INIT_LIST_HEAD(&dev->dev_list_node);
+ INIT_LIST_HEAD(&dev->disco_list_node);
+ kref_init(&dev->kref);
+ spin_lock_init(&dev->done_lock);
+ }
+ return dev;
+}
+
+static inline void sas_put_device(struct domain_device *dev)
+{
+ kref_put(&dev->kref, sas_free_device);
+}
+
+#endif /* _SAS_INTERNAL_H_ */
Code Review / kvmfornfv.git / blobdiff