diff options
Diffstat (limited to 'drivers/scsi/isci')
| -rw-r--r-- | drivers/scsi/isci/Makefile | 2 | ||||
| -rw-r--r-- | drivers/scsi/isci/request.c | 71 | ||||
| -rw-r--r-- | drivers/scsi/isci/request.h | 2 | ||||
| -rw-r--r-- | drivers/scsi/isci/sata.c | 232 | ||||
| -rw-r--r-- | drivers/scsi/isci/sata.h | 79 | ||||
| -rw-r--r-- | drivers/scsi/isci/task.c | 100 | ||||
| -rw-r--r-- | drivers/scsi/isci/task.h | 12 |
7 files changed, 120 insertions, 378 deletions
diff --git a/drivers/scsi/isci/Makefile b/drivers/scsi/isci/Makefile index 42449701ad9e..3359e10e0d8f 100644 --- a/drivers/scsi/isci/Makefile +++ b/drivers/scsi/isci/Makefile @@ -1,5 +1,5 @@ obj-$(CONFIG_SCSI_ISCI) += isci.o -isci-objs := init.o phy.o request.o sata.o \ +isci-objs := init.o phy.o request.o \ remote_device.o port.o \ host.o task.o probe_roms.o \ remote_node_context.o \ diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 7c500bb6a8e0..33c8ed1741e6 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -56,7 +56,6 @@ #include "isci.h" #include "task.h" #include "request.h" -#include "sata.h" #include "scu_completion_codes.h" #include "scu_event_codes.h" #include "sas.h" @@ -1092,16 +1091,6 @@ smp_request_await_tc_event(struct isci_request *ireq, return SCI_SUCCESS; } -void sci_stp_io_request_set_ncq_tag(struct isci_request *ireq, - u16 ncq_tag) -{ - /** - * @note This could be made to return an error to the user if the user - * attempts to set the NCQ tag in the wrong state. - */ - ireq->tc->type.stp.ncq_tag = ncq_tag; -} - static struct scu_sgl_element *pio_sgl_next(struct isci_stp_request *stp_req) { struct scu_sgl_element *sgl; @@ -2410,6 +2399,29 @@ static void isci_task_save_for_upper_layer_completion( } } +static 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; +} + static void isci_request_io_request_complete(struct isci_host *ihost, struct isci_request *request, enum sci_io_status completion_status) @@ -2985,34 +2997,29 @@ static enum sci_status isci_request_ssp_request_construct( return status; } -static enum sci_status isci_request_stp_request_construct( - struct isci_request *request) +static enum sci_status isci_request_stp_request_construct(struct isci_request *ireq) { - struct sas_task *task = isci_request_access_task(request); + struct sas_task *task = isci_request_access_task(ireq); + struct host_to_dev_fis *fis = &ireq->stp.cmd; + struct ata_queued_cmd *qc = task->uldd_task; enum sci_status status; - struct host_to_dev_fis *register_fis; - dev_dbg(&request->isci_host->pdev->dev, - "%s: request = %p\n", + dev_dbg(&ireq->isci_host->pdev->dev, + "%s: ireq = %p\n", __func__, - request); - - /* Get the host_to_dev_fis from the core and copy - * the fis from the task into it. - */ - register_fis = isci_sata_task_to_fis_copy(task); + ireq); - status = sci_io_request_construct_basic_sata(request); + 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; - /* Set the ncq tag in the fis, from the queue - * command in the task. - */ - if (isci_sata_is_task_ncq(task)) { + status = sci_io_request_construct_basic_sata(ireq); - isci_sata_set_ncq_tag( - register_fis, - task - ); + if (qc && (qc->tf.command == ATA_CMD_FPDMA_WRITE || + qc->tf.command == ATA_CMD_FPDMA_READ)) { + fis->sector_count = qc->tag << 3; + ireq->tc->type.stp.ncq_tag = qc->tag; } return status; diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index 597084027819..11bc279457aa 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -435,8 +435,6 @@ enum sci_status sci_task_request_construct_ssp(struct isci_request *ireq); enum sci_status sci_task_request_construct_sata(struct isci_request *ireq); -void -sci_stp_io_request_set_ncq_tag(struct isci_request *ireq, u16 ncq_tag); void sci_smp_request_copy_response(struct isci_request *ireq); static inline int isci_task_is_ncq_recovery(struct sas_task *task) diff --git a/drivers/scsi/isci/sata.c b/drivers/scsi/isci/sata.c deleted file mode 100644 index 47b96c21548f..000000000000 --- a/drivers/scsi/isci/sata.c +++ /dev/null @@ -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; -} diff --git a/drivers/scsi/isci/sata.h b/drivers/scsi/isci/sata.h deleted file mode 100644 index 1b89f1f75770..000000000000 --- a/drivers/scsi/isci/sata.h +++ /dev/null @@ -1,79 +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. - */ - -struct host_to_dev_fis *isci_sata_task_to_fis_copy( - struct sas_task *task); - -bool isci_sata_is_task_ncq( - struct sas_task *task); - -void isci_sata_set_ncq_tag( - struct host_to_dev_fis *register_fis, - struct sas_task *task); - -void isci_request_process_stp_response( - struct sas_task *task, - void *response_buffer); - -u8 isci_sata_get_sat_protocol( - struct isci_request *isci_request); - -enum sci_status isci_sata_management_task_request_build( - struct isci_request *isci_request); - -int isci_task_send_lu_reset_sata( - struct isci_host *isci_host, - struct isci_remote_device *isci_device, - u8 *lun); diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 20112cd5b646..5d962b6b03eb 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -61,7 +61,6 @@ #include "remote_node_context.h" #include "isci.h" #include "request.h" -#include "sata.h" #include "task.h" #include "host.h" @@ -238,6 +237,46 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) return 0; } +static 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; +} + static struct isci_request *isci_task_request_build(struct isci_host *ihost, struct isci_remote_device *idev, u16 tag, struct isci_tmf *isci_tmf) @@ -287,9 +326,9 @@ static struct isci_request *isci_task_request_build(struct isci_host *ihost, return ireq; } -int isci_task_execute_tmf(struct isci_host *ihost, - struct isci_remote_device *idev, - struct isci_tmf *tmf, unsigned long timeout_ms) +static int isci_task_execute_tmf(struct isci_host *ihost, + struct isci_remote_device *idev, + struct isci_tmf *tmf, unsigned long timeout_ms) { DECLARE_COMPLETION_ONSTACK(completion); enum sci_task_status status = SCI_TASK_FAILURE; @@ -401,13 +440,12 @@ int isci_task_execute_tmf(struct isci_host *ihost, return ret; } -void isci_task_build_tmf( - struct isci_tmf *tmf, - enum isci_tmf_function_codes code, - void (*tmf_sent_cb)(enum isci_tmf_cb_state, - struct isci_tmf *, - void *), - void *cb_data) +static void isci_task_build_tmf(struct isci_tmf *tmf, + enum isci_tmf_function_codes code, + void (*tmf_sent_cb)(enum isci_tmf_cb_state, + struct isci_tmf *, + void *), + void *cb_data) { memset(tmf, 0, sizeof(*tmf)); @@ -416,16 +454,14 @@ void isci_task_build_tmf( tmf->cb_data = cb_data; } -static void isci_task_build_abort_task_tmf( - struct isci_tmf *tmf, - enum isci_tmf_function_codes code, - void (*tmf_sent_cb)(enum isci_tmf_cb_state, - struct isci_tmf *, - void *), - struct isci_request *old_request) +static void isci_task_build_abort_task_tmf(struct isci_tmf *tmf, + enum isci_tmf_function_codes code, + void (*tmf_sent_cb)(enum isci_tmf_cb_state, + struct isci_tmf *, + void *), + struct isci_request *old_request) { - isci_task_build_tmf(tmf, code, tmf_sent_cb, - (void *)old_request); + isci_task_build_tmf(tmf, code, tmf_sent_cb, old_request); tmf->io_tag = old_request->io_tag; } @@ -804,6 +840,30 @@ static int isci_task_send_lu_reset_sas( return ret; } +static int isci_task_send_lu_reset_sata(struct isci_host *ihost, + struct isci_remote_device *idev, u8 *lun) +{ + int ret = TMF_RESP_FUNC_FAILED; + struct isci_tmf tmf; + + /* 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(ihost, idev, &tmf, ISCI_SRST_TIMEOUT_MS); + + if (ret != TMF_RESP_FUNC_COMPLETE) { + dev_warn(&ihost->pdev->dev, + "%s: Assert SRST failed (%p) = %x", + __func__, idev, ret); + + /* Return the failure so that the LUN reset is escalated + * to a target reset. + */ + } + return ret; +} + /** * isci_task_lu_reset() - This function is one of the SAS Domain Template * functions. This is one of the Task Management functoins called by libsas, diff --git a/drivers/scsi/isci/task.h b/drivers/scsi/isci/task.h index 42019de23805..4a7fa90287ef 100644 --- a/drivers/scsi/isci/task.h +++ b/drivers/scsi/isci/task.h @@ -211,18 +211,6 @@ int isci_queuecommand( int isci_bus_reset_handler(struct scsi_cmnd *cmd); -void isci_task_build_tmf( - struct isci_tmf *tmf, - enum isci_tmf_function_codes code, - void (*tmf_sent_cb)(enum isci_tmf_cb_state, - struct isci_tmf *, - void *), - void *cb_data); - -int isci_task_execute_tmf(struct isci_host *isci_host, - struct isci_remote_device *idev, - struct isci_tmf *tmf, unsigned long timeout_ms); - /** * enum isci_completion_selection - This enum defines the possible actions to * take with respect to a given request's notification back to libsas. |