isci: Intel(R) C600 Series Chipset Storage Control Unit Driver

Support for the up to 2x4-port 6Gb/s SAS controllers embedded in the
chipset.

This is a snapshot of the first publicly available version of the driver,
commit 4c1db2d0 in the 'historical' branch.

   git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci.git historical

Signed-off-by: Maciej Trela <maciej.trela@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 153 insertions, 0 deletions

diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h
new file mode 100644
index 000000000000..b01b0c63e53f
--- /dev/null
+++ b/drivers/scsi/isci/port.h
@@ -0,0 +1,153 @@
+/*
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * 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., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in
+ *     the documentation and/or other materials provided with the
+ *     distribution.
+ *   * Neither the name of Intel Corporation nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * This file contains the isci_port object definition.
+ *
+ * port.h
+ */
+
+#if !defined(_ISCI_PORT_H_)
+#define _ISCI_PORT_H_
+
+struct isci_phy;
+struct isci_host;
+
+
+enum isci_status {
+	isci_freed        = 0x00,
+	isci_starting     = 0x01,
+	isci_ready        = 0x02,
+	isci_ready_for_io = 0x03,
+	isci_stopping     = 0x04,
+	isci_stopped      = 0x05,
+	isci_host_quiesce = 0x06
+};
+
+/**
+ * struct isci_port - This class represents the port object used to internally
+ *    represent libsas port objects. It also keeps a list of remote device
+ *    objects.
+ *
+ *
+ */
+struct isci_port {
+
+	struct scic_sds_port *sci_port_handle;
+
+	enum isci_status status;
+	struct isci_host *isci_host;
+	struct asd_sas_port sas_port;
+	struct list_head remote_dev_list;
+	spinlock_t remote_device_lock;
+	spinlock_t state_lock;
+	struct list_head domain_dev_list;
+	struct completion start_complete;
+	struct completion hard_reset_complete;
+	enum sci_status hard_reset_status;
+};
+
+#define to_isci_port(p)	\
+	container_of(p, struct isci_port, sas_port);
+
+enum isci_status isci_port_get_state(
+	struct isci_port *isci_port);
+
+
+
+void isci_port_formed(
+	struct asd_sas_phy *);
+
+void isci_port_deformed(
+	struct asd_sas_phy *);
+
+void isci_port_bc_change_received(
+	struct isci_host *isci_host,
+	struct scic_sds_port *port,
+	struct scic_sds_phy *phy);
+
+void isci_port_link_up(
+	struct isci_host *isci_host,
+	struct scic_sds_port *port,
+	struct scic_sds_phy *phy);
+
+void isci_port_link_down(
+	struct isci_host *isci_host,
+	struct isci_phy *isci_phy,
+	struct isci_port *port);
+
+void isci_port_ready(
+	struct isci_host *isci_host,
+	struct isci_port *isci_port);
+
+void isci_port_not_ready(
+	struct isci_host *isci_host,
+	struct isci_port *port);
+
+void isci_port_init(
+	struct isci_port *port,
+	struct isci_host *host,
+	int index);
+
+void isci_port_hard_reset_complete(
+	struct isci_port *isci_port,
+	enum sci_status completion_status);
+
+int isci_port_perform_hard_reset(
+	struct isci_port *isci_port_ptr,
+	struct isci_phy *isci_phy_ptr);
+
+#endif /* !defined(_ISCI_PORT_H_) */
+