Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 513 deletions

diff --git a/ANDROID_3.4.5/drivers/scsi/libsas/sas_init.c b/ANDROID_3.4.5/drivers/scsi/libsas/sas_init.c
deleted file mode 100644
index 10cb5ae3..00000000
--- a/ANDROID_3.4.5/drivers/scsi/libsas/sas_init.c
+++ /dev/null
@@ -1,513 +0,0 @@
-/*
- * Serial Attached SCSI (SAS) Transport Layer initialization
- *
- * 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
- *
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/spinlock.h>
-#include <scsi/sas_ata.h>
-#include <scsi/scsi_host.h>
-#include <scsi/scsi_device.h>
-#include <scsi/scsi_transport.h>
-#include <scsi/scsi_transport_sas.h>
-
-#include "sas_internal.h"
-
-#include "../scsi_sas_internal.h"
-
-static struct kmem_cache *sas_task_cache;
-
-struct sas_task *sas_alloc_task(gfp_t flags)
-{
-	struct sas_task *task = kmem_cache_zalloc(sas_task_cache, flags);
-
-	if (task) {
-		INIT_LIST_HEAD(&task->list);
-		spin_lock_init(&task->task_state_lock);
-		task->task_state_flags = SAS_TASK_STATE_PENDING;
-		init_timer(&task->timer);
-		init_completion(&task->completion);
-	}
-
-	return task;
-}
-EXPORT_SYMBOL_GPL(sas_alloc_task);
-
-void sas_free_task(struct sas_task *task)
-{
-	if (task) {
-		BUG_ON(!list_empty(&task->list));
-		kmem_cache_free(sas_task_cache, task);
-	}
-}
-EXPORT_SYMBOL_GPL(sas_free_task);
-
-/*------------ SAS addr hash -----------*/
-void sas_hash_addr(u8 *hashed, const u8 *sas_addr)
-{
-        const u32 poly = 0x00DB2777;
-        u32     r = 0;
-        int     i;
-
-        for (i = 0; i < 8; i++) {
-                int b;
-                for (b = 7; b >= 0; b--) {
-                        r <<= 1;
-                        if ((1 << b) & sas_addr[i]) {
-                                if (!(r & 0x01000000))
-                                        r ^= poly;
-                        } else if (r & 0x01000000)
-                                r ^= poly;
-                }
-        }
-
-        hashed[0] = (r >> 16) & 0xFF;
-        hashed[1] = (r >> 8) & 0xFF ;
-        hashed[2] = r & 0xFF;
-}
-
-
-/* ---------- HA events ---------- */
-
-void sas_hae_reset(struct work_struct *work)
-{
-	struct sas_ha_event *ev = to_sas_ha_event(work);
-	struct sas_ha_struct *ha = ev->ha;
-
-	clear_bit(HAE_RESET, &ha->pending);
-}
-
-int sas_register_ha(struct sas_ha_struct *sas_ha)
-{
-	int error = 0;
-
-	mutex_init(&sas_ha->disco_mutex);
-	spin_lock_init(&sas_ha->phy_port_lock);
-	sas_hash_addr(sas_ha->hashed_sas_addr, sas_ha->sas_addr);
-
-	if (sas_ha->lldd_queue_size == 0)
-		sas_ha->lldd_queue_size = 1;
-	else if (sas_ha->lldd_queue_size == -1)
-		sas_ha->lldd_queue_size = 128; /* Sanity */
-
-	set_bit(SAS_HA_REGISTERED, &sas_ha->state);
-	spin_lock_init(&sas_ha->state_lock);
-	mutex_init(&sas_ha->drain_mutex);
-	INIT_LIST_HEAD(&sas_ha->defer_q);
-
-	error = sas_register_phys(sas_ha);
-	if (error) {
-		printk(KERN_NOTICE "couldn't register sas phys:%d\n", error);
-		return error;
-	}
-
-	error = sas_register_ports(sas_ha);
-	if (error) {
-		printk(KERN_NOTICE "couldn't register sas ports:%d\n", error);
-		goto Undo_phys;
-	}
-
-	error = sas_init_events(sas_ha);
-	if (error) {
-		printk(KERN_NOTICE "couldn't start event thread:%d\n", error);
-		goto Undo_ports;
-	}
-
-	if (sas_ha->lldd_max_execute_num > 1) {
-		error = sas_init_queue(sas_ha);
-		if (error) {
-			printk(KERN_NOTICE "couldn't start queue thread:%d, "
-			       "running in direct mode\n", error);
-			sas_ha->lldd_max_execute_num = 1;
-		}
-	}
-
-	INIT_LIST_HEAD(&sas_ha->eh_done_q);
-	INIT_LIST_HEAD(&sas_ha->eh_ata_q);
-
-	return 0;
-
-Undo_ports:
-	sas_unregister_ports(sas_ha);
-Undo_phys:
-
-	return error;
-}
-
-int sas_unregister_ha(struct sas_ha_struct *sas_ha)
-{
-	/* Set the state to unregistered to avoid further unchained
-	 * events to be queued, and flush any in-progress drainers
-	 */
-	mutex_lock(&sas_ha->drain_mutex);
-	spin_lock_irq(&sas_ha->state_lock);
-	clear_bit(SAS_HA_REGISTERED, &sas_ha->state);
-	spin_unlock_irq(&sas_ha->state_lock);
-	__sas_drain_work(sas_ha);
-	mutex_unlock(&sas_ha->drain_mutex);
-
-	sas_unregister_ports(sas_ha);
-
-	/* flush unregistration work */
-	mutex_lock(&sas_ha->drain_mutex);
-	__sas_drain_work(sas_ha);
-	mutex_unlock(&sas_ha->drain_mutex);
-
-	if (sas_ha->lldd_max_execute_num > 1) {
-		sas_shutdown_queue(sas_ha);
-		sas_ha->lldd_max_execute_num = 1;
-	}
-
-	return 0;
-}
-
-static int sas_get_linkerrors(struct sas_phy *phy)
-{
-	if (scsi_is_sas_phy_local(phy)) {
-		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
-		struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
-		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
-		struct sas_internal *i =
-			to_sas_internal(sas_ha->core.shost->transportt);
-
-		return i->dft->lldd_control_phy(asd_phy, PHY_FUNC_GET_EVENTS, NULL);
-	}
-
-	return sas_smp_get_phy_events(phy);
-}
-
-int sas_try_ata_reset(struct asd_sas_phy *asd_phy)
-{
-	struct domain_device *dev = NULL;
-
-	/* try to route user requested link resets through libata */
-	if (asd_phy->port)
-		dev = asd_phy->port->port_dev;
-
-	/* validate that dev has been probed */
-	if (dev)
-		dev = sas_find_dev_by_rphy(dev->rphy);
-
-	if (dev && dev_is_sata(dev)) {
-		sas_ata_schedule_reset(dev);
-		sas_ata_wait_eh(dev);
-		return 0;
-	}
-
-	return -ENODEV;
-}
-
-/**
- * transport_sas_phy_reset - reset a phy and permit libata to manage the link
- *
- * phy reset request via sysfs in host workqueue context so we know we
- * can block on eh and safely traverse the domain_device topology
- */
-static int transport_sas_phy_reset(struct sas_phy *phy, int hard_reset)
-{
-	enum phy_func reset_type;
-
-	if (hard_reset)
-		reset_type = PHY_FUNC_HARD_RESET;
-	else
-		reset_type = PHY_FUNC_LINK_RESET;
-
-	if (scsi_is_sas_phy_local(phy)) {
-		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
-		struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
-		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
-		struct sas_internal *i =
-			to_sas_internal(sas_ha->core.shost->transportt);
-
-		if (!hard_reset && sas_try_ata_reset(asd_phy) == 0)
-			return 0;
-		return i->dft->lldd_control_phy(asd_phy, reset_type, NULL);
-	} else {
-		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
-		struct domain_device *ddev = sas_find_dev_by_rphy(rphy);
-		struct domain_device *ata_dev = sas_ex_to_ata(ddev, phy->number);
-
-		if (ata_dev && !hard_reset) {
-			sas_ata_schedule_reset(ata_dev);
-			sas_ata_wait_eh(ata_dev);
-			return 0;
-		} else
-			return sas_smp_phy_control(ddev, phy->number, reset_type, NULL);
-	}
-}
-
-static int sas_phy_enable(struct sas_phy *phy, int enable)
-{
-	int ret;
-	enum phy_func cmd;
-
-	if (enable)
-		cmd = PHY_FUNC_LINK_RESET;
-	else
-		cmd = PHY_FUNC_DISABLE;
-
-	if (scsi_is_sas_phy_local(phy)) {
-		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
-		struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
-		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
-		struct sas_internal *i =
-			to_sas_internal(sas_ha->core.shost->transportt);
-
-		if (enable)
-			ret = transport_sas_phy_reset(phy, 0);
-		else
-			ret = i->dft->lldd_control_phy(asd_phy, cmd, NULL);
-	} else {
-		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
-		struct domain_device *ddev = sas_find_dev_by_rphy(rphy);
-
-		if (enable)
-			ret = transport_sas_phy_reset(phy, 0);
-		else
-			ret = sas_smp_phy_control(ddev, phy->number, cmd, NULL);
-	}
-	return ret;
-}
-
-int sas_phy_reset(struct sas_phy *phy, int hard_reset)
-{
-	int ret;
-	enum phy_func reset_type;
-
-	if (!phy->enabled)
-		return -ENODEV;
-
-	if (hard_reset)
-		reset_type = PHY_FUNC_HARD_RESET;
-	else
-		reset_type = PHY_FUNC_LINK_RESET;
-
-	if (scsi_is_sas_phy_local(phy)) {
-		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
-		struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
-		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
-		struct sas_internal *i =
-			to_sas_internal(sas_ha->core.shost->transportt);
-
-		ret = i->dft->lldd_control_phy(asd_phy, reset_type, NULL);
-	} else {
-		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
-		struct domain_device *ddev = sas_find_dev_by_rphy(rphy);
-		ret = sas_smp_phy_control(ddev, phy->number, reset_type, NULL);
-	}
-	return ret;
-}
-
-int sas_set_phy_speed(struct sas_phy *phy,
-		      struct sas_phy_linkrates *rates)
-{
-	int ret;
-
-	if ((rates->minimum_linkrate &&
-	     rates->minimum_linkrate > phy->maximum_linkrate) ||
-	    (rates->maximum_linkrate &&
-	     rates->maximum_linkrate < phy->minimum_linkrate))
-		return -EINVAL;
-
-	if (rates->minimum_linkrate &&
-	    rates->minimum_linkrate < phy->minimum_linkrate_hw)
-		rates->minimum_linkrate = phy->minimum_linkrate_hw;
-
-	if (rates->maximum_linkrate &&
-	    rates->maximum_linkrate > phy->maximum_linkrate_hw)
-		rates->maximum_linkrate = phy->maximum_linkrate_hw;
-
-	if (scsi_is_sas_phy_local(phy)) {
-		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
-		struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
-		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
-		struct sas_internal *i =
-			to_sas_internal(sas_ha->core.shost->transportt);
-
-		ret = i->dft->lldd_control_phy(asd_phy, PHY_FUNC_SET_LINK_RATE,
-					       rates);
-	} else {
-		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
-		struct domain_device *ddev = sas_find_dev_by_rphy(rphy);
-		ret = sas_smp_phy_control(ddev, phy->number,
-					  PHY_FUNC_LINK_RESET, rates);
-
-	}
-
-	return ret;
-}
-
-static void sas_phy_release(struct sas_phy *phy)
-{
-	kfree(phy->hostdata);
-	phy->hostdata = NULL;
-}
-
-static void phy_reset_work(struct work_struct *work)
-{
-	struct sas_phy_data *d = container_of(work, typeof(*d), reset_work.work);
-
-	d->reset_result = transport_sas_phy_reset(d->phy, d->hard_reset);
-}
-
-static void phy_enable_work(struct work_struct *work)
-{
-	struct sas_phy_data *d = container_of(work, typeof(*d), enable_work.work);
-
-	d->enable_result = sas_phy_enable(d->phy, d->enable);
-}
-
-static int sas_phy_setup(struct sas_phy *phy)
-{
-	struct sas_phy_data *d = kzalloc(sizeof(*d), GFP_KERNEL);
-
-	if (!d)
-		return -ENOMEM;
-
-	mutex_init(&d->event_lock);
-	INIT_SAS_WORK(&d->reset_work, phy_reset_work);
-	INIT_SAS_WORK(&d->enable_work, phy_enable_work);
-	d->phy = phy;
-	phy->hostdata = d;
-
-	return 0;
-}
-
-static int queue_phy_reset(struct sas_phy *phy, int hard_reset)
-{
-	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
-	struct sas_ha_struct *ha = SHOST_TO_SAS_HA(shost);
-	struct sas_phy_data *d = phy->hostdata;
-	int rc;
-
-	if (!d)
-		return -ENOMEM;
-
-	/* libsas workqueue coordinates ata-eh reset with discovery */
-	mutex_lock(&d->event_lock);
-	d->reset_result = 0;
-	d->hard_reset = hard_reset;
-
-	spin_lock_irq(&ha->state_lock);
-	sas_queue_work(ha, &d->reset_work);
-	spin_unlock_irq(&ha->state_lock);
-
-	rc = sas_drain_work(ha);
-	if (rc == 0)
-		rc = d->reset_result;
-	mutex_unlock(&d->event_lock);
-
-	return rc;
-}
-
-static int queue_phy_enable(struct sas_phy *phy, int enable)
-{
-	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
-	struct sas_ha_struct *ha = SHOST_TO_SAS_HA(shost);
-	struct sas_phy_data *d = phy->hostdata;
-	int rc;
-
-	if (!d)
-		return -ENOMEM;
-
-	/* libsas workqueue coordinates ata-eh reset with discovery */
-	mutex_lock(&d->event_lock);
-	d->enable_result = 0;
-	d->enable = enable;
-
-	spin_lock_irq(&ha->state_lock);
-	sas_queue_work(ha, &d->enable_work);
-	spin_unlock_irq(&ha->state_lock);
-
-	rc = sas_drain_work(ha);
-	if (rc == 0)
-		rc = d->enable_result;
-	mutex_unlock(&d->event_lock);
-
-	return rc;
-}
-
-static struct sas_function_template sft = {
-	.phy_enable = queue_phy_enable,
-	.phy_reset = queue_phy_reset,
-	.phy_setup = sas_phy_setup,
-	.phy_release = sas_phy_release,
-	.set_phy_speed = sas_set_phy_speed,
-	.get_linkerrors = sas_get_linkerrors,
-	.smp_handler = sas_smp_handler,
-};
-
-struct scsi_transport_template *
-sas_domain_attach_transport(struct sas_domain_function_template *dft)
-{
-	struct scsi_transport_template *stt = sas_attach_transport(&sft);
-	struct sas_internal *i;
-
-	if (!stt)
-		return stt;
-
-	i = to_sas_internal(stt);
-	i->dft = dft;
-	stt->create_work_queue = 1;
-	stt->eh_timed_out = sas_scsi_timed_out;
-	stt->eh_strategy_handler = sas_scsi_recover_host;
-
-	return stt;
-}
-EXPORT_SYMBOL_GPL(sas_domain_attach_transport);
-
-
-void sas_domain_release_transport(struct scsi_transport_template *stt)
-{
-	sas_release_transport(stt);
-}
-EXPORT_SYMBOL_GPL(sas_domain_release_transport);
-
-/* ---------- SAS Class register/unregister ---------- */
-
-static int __init sas_class_init(void)
-{
-	sas_task_cache = KMEM_CACHE(sas_task, SLAB_HWCACHE_ALIGN);
-	if (!sas_task_cache)
-		return -ENOMEM;
-
-	return 0;
-}
-
-static void __exit sas_class_exit(void)
-{
-	kmem_cache_destroy(sas_task_cache);
-}
-
-MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
-MODULE_DESCRIPTION("SAS Transport Layer");
-MODULE_LICENSE("GPL v2");
-
-module_init(sas_class_init);
-module_exit(sas_class_exit);
-
-EXPORT_SYMBOL_GPL(sas_register_ha);
-EXPORT_SYMBOL_GPL(sas_unregister_ha);