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
288 lines
8.7 KiB
C
288 lines
8.7 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/**
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* @file
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*
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* @brief This file contains the implementation of the public methods for a
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* SCIC_SDS_LIBRARY object.
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*/
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#include <dev/isci/scil/scic_library.h>
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#include <dev/isci/scil/scic_sds_library.h>
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#include <dev/isci/scil/scic_sds_controller.h>
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#include <dev/isci/scil/scic_sds_request.h>
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#include <dev/isci/scil/scic_sds_remote_device.h>
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#include <dev/isci/scil/intel_pci.h>
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#include <dev/isci/scil/scic_sds_pci.h>
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#include <dev/isci/scil/scu_constants.h>
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struct SCIC_SDS_CONTROLLER;
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#define SCIC_LIBRARY_CONTROLLER_MEMORY_START(library) \
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((char *)(library) + sizeof(SCIC_SDS_LIBRARY_T))
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// ---------------------------------------------------------------------------
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U32 scic_library_get_object_size(
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U8 max_controller_count
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)
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{
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return sizeof(SCIC_SDS_LIBRARY_T)
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+ scic_sds_controller_get_object_size() * max_controller_count;
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}
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// ---------------------------------------------------------------------------
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SCI_LIBRARY_HANDLE_T scic_library_construct(
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void * library_memory,
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U8 max_controller_count
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)
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{
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SCI_STATUS status;
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SCIC_SDS_LIBRARY_T *this_library;
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this_library = (SCIC_SDS_LIBRARY_T *)library_memory;
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this_library->max_controller_count = max_controller_count;
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this_library->controllers =
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(SCIC_SDS_CONTROLLER_T *)((char *)library_memory + sizeof(SCIC_SDS_LIBRARY_T));
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SCI_BASE_LIBRARY_CONSTRUCT(this_library,
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&this_library->parent,
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max_controller_count,
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struct SCIC_SDS_CONTROLLER,
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status);
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return this_library;
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}
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// ---------------------------------------------------------------------------
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void scic_library_set_pci_info(
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SCI_LIBRARY_HANDLE_T library,
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SCI_PCI_COMMON_HEADER_T * pci_header
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)
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{
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SCIC_SDS_LIBRARY_T *this_library;
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this_library = (SCIC_SDS_LIBRARY_T *)library;
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this_library->pci_device = pci_header->device_id;
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#if defined(PBG_HBA_A0_BUILD)
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this_library->pci_revision = SCIC_SDS_PCI_REVISION_A0;
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#elif defined(PBG_HBA_A2_BUILD)
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this_library->pci_revision = SCIC_SDS_PCI_REVISION_A2;
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#elif defined(PBG_HBA_BETA_BUILD)
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this_library->pci_revision = SCIC_SDS_PCI_REVISION_B0;
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#elif defined(PBG_BUILD)
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// The SCU PCI function revision ID for A0/A2 is not populated
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// properly. As a result, we force the revision ID to A2 for
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// this situation. Therefore, the standard PBG build will not
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// work for A0.
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if (pci_header->revision == SCIC_SDS_PCI_REVISION_A0)
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this_library->pci_revision = SCIC_SDS_PCI_REVISION_A2;
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else
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this_library->pci_revision = pci_header->revision;
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#endif
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}
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// ---------------------------------------------------------------------------
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SCI_STATUS scic_library_allocate_controller(
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SCI_LIBRARY_HANDLE_T library,
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SCI_CONTROLLER_HANDLE_T *new_controller
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)
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{
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SCI_STATUS status;
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SCIC_SDS_LIBRARY_T *this_library;
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this_library = (SCIC_SDS_LIBRARY_T *)library;
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if (
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( (this_library->pci_device >= 0x1D60)
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&& (this_library->pci_device <= 0x1D62)
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)
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|| ( (this_library->pci_device >= 0x1D64)
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&& (this_library->pci_device <= 0x1D65)
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)
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|| ( (this_library->pci_device >= 0x1D68)
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&& (this_library->pci_device <= 0x1D6F)
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)
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)
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{
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SCI_BASE_LIBRARY_ALLOCATE_CONTROLLER(
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this_library, new_controller, &status);
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}
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else
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status = SCI_FAILURE_UNSUPPORTED_PCI_DEVICE_ID;
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return status;
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}
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// ---------------------------------------------------------------------------
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SCI_STATUS scic_library_free_controller(
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SCI_LIBRARY_HANDLE_T library,
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SCI_CONTROLLER_HANDLE_T controller
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)
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{
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SCI_STATUS status;
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SCIC_SDS_LIBRARY_T *this_library;
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this_library = (SCIC_SDS_LIBRARY_T *)library;
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SCI_BASE_LIBRARY_FREE_CONTROLLER(
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this_library, controller, struct SCIC_SDS_CONTROLLER, &status);
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return status;
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}
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// ---------------------------------------------------------------------------
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U8 scic_library_get_pci_device_controller_count(
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SCI_LIBRARY_HANDLE_T library
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)
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{
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SCIC_SDS_LIBRARY_T *this_library;
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U16 device_id;
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this_library = (SCIC_SDS_LIBRARY_T *)library;
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device_id = this_library->pci_device;
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//Check if we are on a b0 or c0 which has 2 controllers
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if (
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// Warning: If 0x1d66 is ever defined to be a single controller
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// this logic will fail.
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// If 0x1d63 or 0x1d67 is ever defined to be dual
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// controller this logic will fail.
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((device_id & 0xFFF1) == 0x1D60)
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&& (
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(this_library->pci_revision == SCU_PBG_HBA_REV_B0)
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|| (this_library->pci_revision == SCU_PBG_HBA_REV_C0)
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|| (this_library->pci_revision == SCU_PBG_HBA_REV_C1)
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)
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)
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return 2;
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else
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return 1;
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}
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// ---------------------------------------------------------------------------
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U32 scic_library_get_max_sge_size(
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SCI_LIBRARY_HANDLE_T library
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)
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{
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return SCU_IO_REQUEST_MAX_SGE_SIZE;
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}
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// ---------------------------------------------------------------------------
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U32 scic_library_get_max_sge_count(
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SCI_LIBRARY_HANDLE_T library
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)
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{
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return SCU_IO_REQUEST_SGE_COUNT;
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}
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// ---------------------------------------------------------------------------
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U32 scic_library_get_max_io_length(
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SCI_LIBRARY_HANDLE_T library
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)
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{
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return SCU_IO_REQUEST_MAX_TRANSFER_LENGTH;
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}
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// ---------------------------------------------------------------------------
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U16 scic_library_get_min_timer_count(void)
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{
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return (U16) (scic_sds_controller_get_min_timer_count()
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+ scic_sds_remote_device_get_min_timer_count()
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+ scic_sds_request_get_min_timer_count());
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}
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// ---------------------------------------------------------------------------
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U16 scic_library_get_max_timer_count(void)
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{
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return (U16) (scic_sds_controller_get_max_timer_count()
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+ scic_sds_remote_device_get_max_timer_count()
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+ scic_sds_request_get_max_timer_count());
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}
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/**
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*
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*/
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U8 scic_sds_library_get_controller_index(
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SCIC_SDS_LIBRARY_T * library,
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SCIC_SDS_CONTROLLER_T * controller
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)
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{
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U8 index;
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for (index = 0; index < library->max_controller_count; index++)
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{
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if (controller == &library->controllers[index])
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{
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return index;
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}
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}
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return 0xff;
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}
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