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103a00c200
We can copy the data directly to and from sg for SATA PIO read operations. There is no reason to involve the hardware SGL. In the process we also need to kmap the sg because we don't know where that can come from. We also do to not call phys_to_virt(). The driver already has the information. We can just calculcate the appropriate offets. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
145 lines
4.8 KiB
C
145 lines
4.8 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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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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/**
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* This file contains the isci_module object definition.
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*
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* isci.h
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*/
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#if !defined(_SCI_MODULE_H_)
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#define _SCI_MODULE_H_
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/**
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* This file contains the SCI low level driver interface to the SCI and Libsas
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* Libraries.
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*
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* isci.h
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*/
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <linux/interrupt.h>
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#include <linux/firmware.h>
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#include <linux/bug.h>
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#include <scsi/libsas.h>
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#include <scsi/scsi.h>
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#include "sci_base_controller.h"
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#include "scic_controller.h"
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#include "host.h"
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#include "timers.h"
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#include "sci_status.h"
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#include "request.h"
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extern struct kmem_cache *isci_kmem_cache;
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extern struct isci_firmware *isci_firmware;
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#define ISCI_FW_NAME "isci/isci_firmware.bin"
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#define ISCI_FIRMWARE_MIN_SIZE 149
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#define ISCI_FW_IDSIZE 12
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#define ISCI_FW_VER_OFS ISCI_FW_IDSIZE
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#define ISCI_FW_SUBVER_OFS ISCI_FW_VER_OFS + 1
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#define ISCI_FW_DATA_OFS ISCI_FW_SUBVER_OFS + 1
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#define ISCI_FW_HDR_PHYMASK 0x1
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#define ISCI_FW_HDR_PHYGEN 0x2
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#define ISCI_FW_HDR_SASADDR 0x3
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#define ISCI_FW_HDR_EOF 0xff
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struct isci_firmware {
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const u8 *id;
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u8 version;
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u8 subversion;
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const u32 *phy_masks;
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u8 phy_masks_size;
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const u32 *phy_gens;
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u8 phy_gens_size;
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const u64 *sas_addrs;
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u8 sas_addrs_size;
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};
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irqreturn_t isci_msix_isr(int vec, void *data);
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irqreturn_t isci_intx_isr(int vec, void *data);
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irqreturn_t isci_error_isr(int vec, void *data);
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bool scic_sds_controller_isr(struct scic_sds_controller *scic);
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void scic_sds_controller_completion_handler(struct scic_sds_controller *scic);
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bool scic_sds_controller_error_isr(struct scic_sds_controller *scic);
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void scic_sds_controller_error_handler(struct scic_sds_controller *scic);
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enum sci_status isci_parse_oem_parameters(
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union scic_oem_parameters *oem_params,
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int scu_index,
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struct isci_firmware *fw);
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enum sci_status isci_parse_user_parameters(
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union scic_user_parameters *user_params,
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int scu_index,
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struct isci_firmware *fw);
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#ifdef ISCI_SLAVE_ALLOC
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extern int ISCI_SLAVE_ALLOC(struct scsi_device *scsi_dev);
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#endif /* ISCI_SLAVE_ALLOC */
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#ifdef ISCI_SLAVE_DESTROY
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extern void ISCI_SLAVE_DESTROY(struct scsi_device *scsi_dev);
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#endif /* ISCI_SLAVE_DESTROY */
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#endif /* !defined(_SCI_MODULE_H_) */
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