f11c7f6305
The isci driver is for the integrated SAS controller in the Intel C600 (Patsburg) chipset. Source files in sys/dev/isci directory are FreeBSD-specific, and sys/dev/isci/scil subdirectory contains an OS-agnostic library (SCIL) published by Intel to control the SAS controller. This library is used primarily as-is in this driver, with some post-processing to better integrate into the kernel build environment. isci.4 and a README in the sys/dev/isci directory contain a few additional details. This driver is only built for amd64 and i386 targets. Sponsored by: Intel Reviewed by: scottl Approved by: scottl
243 lines
7.1 KiB
C
243 lines
7.1 KiB
C
/*-
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* BSD LICENSE
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef __SCU_REMOTE_NODE_CONTEXT_HEADER__
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#define __SCU_REMOTE_NODE_CONTEXT_HEADER__
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/**
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* @file
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*
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* @brief This file contains the structures and constatns used by the SCU
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* hardware to describe a remote node context.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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#include <dev/isci/scil/sci_types.h>
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/**
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* @struct SSP_REMOTE_NODE_CONTEXT
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*
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* @brief This structure contains the SCU hardware definition for an SSP
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* remote node.
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*/
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typedef struct SSP_REMOTE_NODE_CONTEXT
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{
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// WORD 0
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/**
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* This field is the remote node index assigned for this remote node. All
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* remote nodes must have a unique remote node index. The value of the remote
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* node index can not exceed the maximum number of remote nodes reported in
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* the SCU device context capacity register.
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*/
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U32 remote_node_index :12;
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U32 reserved0_1 : 4;
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/**
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* This field tells the SCU hardware how many simultaneous connections that
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* this remote node will support.
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*/
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U32 remote_node_port_width : 4;
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/**
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* This field tells the SCU hardware which logical port to associate with this
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* remote node.
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*/
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U32 logical_port_index : 3;
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U32 reserved0_2 : 5;
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/**
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* This field will enable the I_T nexus loss timer for this remote node.
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*/
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U32 nexus_loss_timer_enable : 1;
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/**
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* This field is the for driver debug only and is not used.
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*/
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U32 check_bit : 1;
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/**
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* This field must be set to TRUE when the hardware DMAs the remote node
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* context to the hardware SRAM. When the remote node is being invalidated
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* this field must be set to FALSE.
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*/
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U32 is_valid : 1;
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/**
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* This field must be set to TRUE.
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*/
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U32 is_remote_node_context : 1;
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// WORD 1 - 2
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/**
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* This is the low word of the remote device SAS Address
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*/
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U32 remote_sas_address_lo;
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/**
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* This field is the high word of the remote device SAS Address
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*/
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U32 remote_sas_address_hi;
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// WORD 3
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/**
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* This field reprensets the function number assigned to this remote device.
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* This value must match the virtual function number that is being used to
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* communicate to the device.
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*/
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U32 function_number : 8;
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U32 reserved3_1 : 8;
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/**
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* This field provides the driver a way to cheat on the arbitration wait time
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* for this remote node.
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*/
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U32 arbitration_wait_time :16;
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// WORD 4
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/**
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* This field tells the SCU hardware how long this device may occupy the
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* connection before it must be closed.
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*/
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U32 connection_occupancy_timeout :16;
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/**
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* This field tells the SCU hardware how long to maintain a connection when
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* there are no frames being transmitted on the link.
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*/
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U32 connection_inactivity_timeout :16;
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// WORD 5
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/**
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* This field allows the driver to cheat on the arbitration wait time for this
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* remote node.
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*/
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U32 initial_arbitration_wait_time :16;
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/**
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* This field is tells the hardware what to program for the connection rate in
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* the open address frame. See the SAS spec for valid values.
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*/
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U32 oaf_connection_rate : 4;
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/**
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* This field tells the SCU hardware what to program for the features in the
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* open address frame. See the SAS spec for valid values.
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*/
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U32 oaf_features : 4;
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/**
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* This field tells the SCU hardware what to use for the source zone group in
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* the open address frame. See the SAS spec for more details on zoning.
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*/
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U32 oaf_source_zone_group : 8;
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// WORD 6
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/**
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* This field tells the SCU hardware what to use as the more capibilities in
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* the open address frame. See the SAS Spec for details.
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*/
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U32 oaf_more_compatibility_features;
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// WORD 7
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U32 reserved7;
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} SSP_REMOTE_NODE_CONTEXT_T;
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/**
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* @struct STP_REMOTE_NODE_CONTEXT
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*
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* @brief This structure contains the SCU hardware definition for a STP remote
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* node.
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*
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* @todo STP Targets are not yet supported so this definition is a placeholder
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* until we do support them.
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*/
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typedef struct STP_REMOTE_NODE_CONTEXT
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{
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/**
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* Placeholder data for the STP remote node.
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*/
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U32 data[8];
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} STP_REMOTE_NODE_CONTEXT_T;
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/**
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* @union SCU_REMOTE_NODE_CONTEXT
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*
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* @brief This union combines the SAS and SATA remote node definitions.
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*/
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typedef union SCU_REMOTE_NODE_CONTEXT
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{
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/**
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* SSP Remote Node
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*/
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SSP_REMOTE_NODE_CONTEXT_T ssp;
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/**
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* STP Remote Node
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*/
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STP_REMOTE_NODE_CONTEXT_T stp;
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} SCU_REMOTE_NODE_CONTEXT_T;
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif // __SCU_REMOTE_NODE_CONTEXT_HEADER__
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