Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 200 insertions, 0 deletions

diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h
new file mode 100644
index 000000000..a94bd0790
--- /dev/null
+++ b/drivers/scsi/libsas/sas_internal.h
@@ -0,0 +1,200 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * 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>
+ */
+
+#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>
+#include <linux/pm_runtime.h>
+
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define SAS_FMT "sas: "
+
+#define pr_fmt(fmt) SAS_FMT fmt
+
+#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);
+
+struct asd_sas_event *sas_alloc_event(struct asd_sas_phy *phy, gfp_t gfp_flags);
+void sas_free_event(struct asd_sas_event *event);
+
+int  sas_register_ports(struct sas_ha_struct *sas_ha);
+void sas_unregister_ports(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_queue_deferred_work(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);
+bool 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 *);
+
+void sas_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
+		struct sas_rphy *rphy);
+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_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_rps_resp *rps_resp);
+int sas_get_phy_attached_dev(struct domain_device *dev, int phy_id,
+			     u8 *sas_addr, enum sas_device_type *type);
+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);
+void sas_destruct_devices(struct asd_sas_port *port);
+
+extern const work_func_t sas_phy_event_fns[PHY_NUM_EVENTS];
+extern const work_func_t sas_port_event_fns[PORT_NUM_EVENTS];
+
+void sas_task_internal_done(struct sas_task *task);
+void sas_task_internal_timedout(struct timer_list *t);
+int sas_execute_tmf(struct domain_device *device, void *parameter,
+		    int para_len, int force_phy_id,
+		    struct sas_tmf_task *tmf);
+
+#ifdef CONFIG_SCSI_SAS_HOST_SMP
+extern void sas_smp_host_handler(struct bsg_job *job, struct Scsi_Host *shost);
+#else
+static inline void sas_smp_host_handler(struct bsg_job *job,
+		struct Scsi_Host *shost)
+{
+	shost_printk(KERN_ERR, shost,
+		"Cannot send SMP to a sas host (not enabled in CONFIG)\n");
+	bsg_job_done(job, -EINVAL, 0);
+}
+#endif
+
+static inline void sas_fail_probe(struct domain_device *dev, const char *func, int err)
+{
+	pr_warn("%s: for %s device %016llx 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_ */