|
|
@@ -1,232 +0,0 @@
|
|
|
-/*
|
|
|
- * 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.
|
|
|
- */
|
|
|
-
|
|
|
-#include <scsi/sas.h>
|
|
|
-#include "isci.h"
|
|
|
-#include "remote_device.h"
|
|
|
-#include "task.h"
|
|
|
-#include "request.h"
|
|
|
-#include "sata.h"
|
|
|
-
|
|
|
-/**
|
|
|
- * isci_sata_task_to_fis_copy() - This function gets the host_to_dev_fis from
|
|
|
- * the core and copies the fis from the task into it.
|
|
|
- * @task: This parameter is a pointer to the task struct from libsas.
|
|
|
- *
|
|
|
- * pointer to the host_to_dev_fis from the core request object.
|
|
|
- */
|
|
|
-struct host_to_dev_fis *isci_sata_task_to_fis_copy(struct sas_task *task)
|
|
|
-{
|
|
|
- struct isci_request *ireq = task->lldd_task;
|
|
|
- struct host_to_dev_fis *fis = &ireq->stp.cmd;
|
|
|
-
|
|
|
- memcpy(fis, &task->ata_task.fis, sizeof(struct host_to_dev_fis));
|
|
|
-
|
|
|
- if (!task->ata_task.device_control_reg_update)
|
|
|
- fis->flags |= 0x80;
|
|
|
-
|
|
|
- fis->flags &= 0xF0;
|
|
|
-
|
|
|
- return fis;
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * isci_sata_is_task_ncq() - This function determines if the given stp task is
|
|
|
- * a ncq request.
|
|
|
- * @task: This parameter is a pointer to the task struct from libsas.
|
|
|
- *
|
|
|
- * true if the task is ncq
|
|
|
- */
|
|
|
-bool isci_sata_is_task_ncq(struct sas_task *task)
|
|
|
-{
|
|
|
- struct ata_queued_cmd *qc = task->uldd_task;
|
|
|
-
|
|
|
- bool ret = (qc &&
|
|
|
- (qc->tf.command == ATA_CMD_FPDMA_WRITE ||
|
|
|
- qc->tf.command == ATA_CMD_FPDMA_READ));
|
|
|
-
|
|
|
- return ret;
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * isci_sata_set_ncq_tag() - This function sets the ncq tag field in the
|
|
|
- * host_to_dev_fis equal to the tag in the queue command in the task.
|
|
|
- * @task: This parameter is a pointer to the task struct from libsas.
|
|
|
- * @register_fis: This parameter is a pointer to the host_to_dev_fis from the
|
|
|
- * core request object.
|
|
|
- *
|
|
|
- */
|
|
|
-void isci_sata_set_ncq_tag(
|
|
|
- struct host_to_dev_fis *register_fis,
|
|
|
- struct sas_task *task)
|
|
|
-{
|
|
|
- struct ata_queued_cmd *qc = task->uldd_task;
|
|
|
- struct isci_request *request = task->lldd_task;
|
|
|
-
|
|
|
- register_fis->sector_count = qc->tag << 3;
|
|
|
- sci_stp_io_request_set_ncq_tag(request, qc->tag);
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * isci_request_process_stp_response() - This function sets the status and
|
|
|
- * response, in the task struct, from the request object for the upper layer
|
|
|
- * driver.
|
|
|
- * @sas_task: This parameter is the task struct from the upper layer driver.
|
|
|
- * @response_buffer: This parameter points to the response of the completed
|
|
|
- * request.
|
|
|
- *
|
|
|
- * none.
|
|
|
- */
|
|
|
-void isci_request_process_stp_response(struct sas_task *task,
|
|
|
- void *response_buffer)
|
|
|
-{
|
|
|
- struct dev_to_host_fis *d2h_reg_fis = response_buffer;
|
|
|
- struct task_status_struct *ts = &task->task_status;
|
|
|
- struct ata_task_resp *resp = (void *)&ts->buf[0];
|
|
|
-
|
|
|
- resp->frame_len = le16_to_cpu(*(__le16 *)(response_buffer + 6));
|
|
|
- memcpy(&resp->ending_fis[0], response_buffer + 16, 24);
|
|
|
- ts->buf_valid_size = sizeof(*resp);
|
|
|
-
|
|
|
- /**
|
|
|
- * If the device fault bit is set in the status register, then
|
|
|
- * set the sense data and return.
|
|
|
- */
|
|
|
- if (d2h_reg_fis->status & ATA_DF)
|
|
|
- ts->stat = SAS_PROTO_RESPONSE;
|
|
|
- else
|
|
|
- ts->stat = SAM_STAT_GOOD;
|
|
|
-
|
|
|
- ts->resp = SAS_TASK_COMPLETE;
|
|
|
-}
|
|
|
-
|
|
|
-enum sci_status isci_sata_management_task_request_build(struct isci_request *ireq)
|
|
|
-{
|
|
|
- struct isci_tmf *isci_tmf;
|
|
|
- enum sci_status status;
|
|
|
-
|
|
|
- if (tmf_task != ireq->ttype)
|
|
|
- return SCI_FAILURE;
|
|
|
-
|
|
|
- isci_tmf = isci_request_access_tmf(ireq);
|
|
|
-
|
|
|
- switch (isci_tmf->tmf_code) {
|
|
|
-
|
|
|
- case isci_tmf_sata_srst_high:
|
|
|
- case isci_tmf_sata_srst_low: {
|
|
|
- struct host_to_dev_fis *fis = &ireq->stp.cmd;
|
|
|
-
|
|
|
- memset(fis, 0, sizeof(*fis));
|
|
|
-
|
|
|
- fis->fis_type = 0x27;
|
|
|
- fis->flags &= ~0x80;
|
|
|
- fis->flags &= 0xF0;
|
|
|
- if (isci_tmf->tmf_code == isci_tmf_sata_srst_high)
|
|
|
- fis->control |= ATA_SRST;
|
|
|
- else
|
|
|
- fis->control &= ~ATA_SRST;
|
|
|
- break;
|
|
|
- }
|
|
|
- /* other management commnd go here... */
|
|
|
- default:
|
|
|
- return SCI_FAILURE;
|
|
|
- }
|
|
|
-
|
|
|
- /* core builds the protocol specific request
|
|
|
- * based on the h2d fis.
|
|
|
- */
|
|
|
- status = sci_task_request_construct_sata(ireq);
|
|
|
-
|
|
|
- return status;
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * isci_task_send_lu_reset_sata() - This function is called by of the SAS
|
|
|
- * Domain Template functions. This is one of the Task Management functoins
|
|
|
- * called by libsas, to reset the given SAS lun. Note the assumption that
|
|
|
- * while this call is executing, no I/O will be sent by the host to the
|
|
|
- * device.
|
|
|
- * @lun: This parameter specifies the lun to be reset.
|
|
|
- *
|
|
|
- * status, zero indicates success.
|
|
|
- */
|
|
|
-int isci_task_send_lu_reset_sata(
|
|
|
- struct isci_host *isci_host,
|
|
|
- struct isci_remote_device *isci_device,
|
|
|
- u8 *lun)
|
|
|
-{
|
|
|
- struct isci_tmf tmf;
|
|
|
- int ret = TMF_RESP_FUNC_FAILED;
|
|
|
-
|
|
|
- /* Send the soft reset to the target */
|
|
|
- #define ISCI_SRST_TIMEOUT_MS 25000 /* 25 second timeout. */
|
|
|
- isci_task_build_tmf(&tmf, isci_tmf_sata_srst_high, NULL, NULL);
|
|
|
-
|
|
|
- ret = isci_task_execute_tmf(isci_host, isci_device, &tmf,
|
|
|
- ISCI_SRST_TIMEOUT_MS);
|
|
|
-
|
|
|
- if (ret != TMF_RESP_FUNC_COMPLETE) {
|
|
|
- dev_warn(&isci_host->pdev->dev,
|
|
|
- "%s: Assert SRST failed (%p) = %x",
|
|
|
- __func__,
|
|
|
- isci_device,
|
|
|
- ret);
|
|
|
-
|
|
|
- /* Return the failure so that the LUN reset is escalated
|
|
|
- * to a target reset.
|
|
|
- */
|
|
|
- }
|
|
|
- return ret;
|
|
|
-}
|
Dan Williams