230 lines
6.6 KiB
C
230 lines
6.6 KiB
C
/*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef __SCU_REMOTE_NODE_CONTEXT_HEADER__
|
|
#define __SCU_REMOTE_NODE_CONTEXT_HEADER__
|
|
|
|
/**
|
|
* This file contains the structures and constatns used by the SCU hardware to
|
|
* describe a remote node context.
|
|
*
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* struct ssp_remote_node_context - This structure contains the SCU hardware
|
|
* definition for an SSP remote node.
|
|
*
|
|
*
|
|
*/
|
|
struct ssp_remote_node_context {
|
|
/* WORD 0 */
|
|
|
|
/**
|
|
* This field is the remote node index assigned for this remote node. All
|
|
* remote nodes must have a unique remote node index. The value of the remote
|
|
* node index can not exceed the maximum number of remote nodes reported in
|
|
* the SCU device context capacity register.
|
|
*/
|
|
u32 remote_node_index:12;
|
|
u32 reserved0_1:4;
|
|
|
|
/**
|
|
* This field tells the SCU hardware how many simultaneous connections that
|
|
* this remote node will support.
|
|
*/
|
|
u32 remote_node_port_width:4;
|
|
|
|
/**
|
|
* This field tells the SCU hardware which logical port to associate with this
|
|
* remote node.
|
|
*/
|
|
u32 logical_port_index:3;
|
|
u32 reserved0_2:5;
|
|
|
|
/**
|
|
* This field will enable the I_T nexus loss timer for this remote node.
|
|
*/
|
|
u32 nexus_loss_timer_enable:1;
|
|
|
|
/**
|
|
* This field is the for driver debug only and is not used.
|
|
*/
|
|
u32 check_bit:1;
|
|
|
|
/**
|
|
* This field must be set to true when the hardware DMAs the remote node
|
|
* context to the hardware SRAM. When the remote node is being invalidated
|
|
* this field must be set to false.
|
|
*/
|
|
u32 is_valid:1;
|
|
|
|
/**
|
|
* This field must be set to true.
|
|
*/
|
|
u32 is_remote_node_context:1;
|
|
|
|
/* WORD 1 - 2 */
|
|
|
|
/**
|
|
* This is the low word of the remote device SAS Address
|
|
*/
|
|
u32 remote_sas_address_lo;
|
|
|
|
/**
|
|
* This field is the high word of the remote device SAS Address
|
|
*/
|
|
u32 remote_sas_address_hi;
|
|
|
|
/* WORD 3 */
|
|
/**
|
|
* This field reprensets the function number assigned to this remote device.
|
|
* This value must match the virtual function number that is being used to
|
|
* communicate to the device.
|
|
*/
|
|
u32 function_number:8;
|
|
u32 reserved3_1:8;
|
|
|
|
/**
|
|
* This field provides the driver a way to cheat on the arbitration wait time
|
|
* for this remote node.
|
|
*/
|
|
u32 arbitration_wait_time:16;
|
|
|
|
/* WORD 4 */
|
|
/**
|
|
* This field tells the SCU hardware how long this device may occupy the
|
|
* connection before it must be closed.
|
|
*/
|
|
u32 connection_occupancy_timeout:16;
|
|
|
|
/**
|
|
* This field tells the SCU hardware how long to maintain a connection when
|
|
* there are no frames being transmitted on the link.
|
|
*/
|
|
u32 connection_inactivity_timeout:16;
|
|
|
|
/* WORD 5 */
|
|
/**
|
|
* This field allows the driver to cheat on the arbitration wait time for this
|
|
* remote node.
|
|
*/
|
|
u32 initial_arbitration_wait_time:16;
|
|
|
|
/**
|
|
* This field is tells the hardware what to program for the connection rate in
|
|
* the open address frame. See the SAS spec for valid values.
|
|
*/
|
|
u32 oaf_connection_rate:4;
|
|
|
|
/**
|
|
* This field tells the SCU hardware what to program for the features in the
|
|
* open address frame. See the SAS spec for valid values.
|
|
*/
|
|
u32 oaf_features:4;
|
|
|
|
/**
|
|
* This field tells the SCU hardware what to use for the source zone group in
|
|
* the open address frame. See the SAS spec for more details on zoning.
|
|
*/
|
|
u32 oaf_source_zone_group:8;
|
|
|
|
/* WORD 6 */
|
|
/**
|
|
* This field tells the SCU hardware what to use as the more capibilities in
|
|
* the open address frame. See the SAS Spec for details.
|
|
*/
|
|
u32 oaf_more_compatibility_features;
|
|
|
|
/* WORD 7 */
|
|
u32 reserved7;
|
|
|
|
};
|
|
|
|
/**
|
|
* struct stp_remote_node_context - This structure contains the SCU hardware
|
|
* definition for a STP remote node.
|
|
*
|
|
* STP Targets are not yet supported so this definition is a placeholder until
|
|
* we do support them.
|
|
*/
|
|
struct stp_remote_node_context {
|
|
/**
|
|
* Placeholder data for the STP remote node.
|
|
*/
|
|
u32 data[8];
|
|
|
|
};
|
|
|
|
/**
|
|
* This union combines the SAS and SATA remote node definitions.
|
|
*
|
|
* union scu_remote_node_context
|
|
*/
|
|
union scu_remote_node_context {
|
|
/**
|
|
* SSP Remote Node
|
|
*/
|
|
struct ssp_remote_node_context ssp;
|
|
|
|
/**
|
|
* STP Remote Node
|
|
*/
|
|
struct stp_remote_node_context stp;
|
|
|
|
};
|
|
|
|
#endif /* __SCU_REMOTE_NODE_CONTEXT_HEADER__ */
|