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head/sys/dev/smartpqi/smartpqi_ioctl.c
Property | Old Value | New Value |
---|---|---|
svn:eol-style | null | native \ No newline at end of property |
svn:keywords | null | FreeBSD=%H \ No newline at end of property |
svn:mime-type | null | text/plain \ No newline at end of property |
/*- | |||||
* Copyright (c) 2018 Microsemi Corporation. | |||||
* All rights reserved. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* 2. 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. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. | |||||
*/ | |||||
/* $FreeBSD$ */ | |||||
/* | |||||
* Management interface for smartpqi driver | |||||
*/ | |||||
#include "smartpqi_includes.h" | |||||
/* | |||||
* Wrapper function to copy to user from kernel | |||||
*/ | |||||
int os_copy_to_user(struct pqisrc_softstate *softs, void *dest_buf, | |||||
void *src_buf, int size, int mode) | |||||
{ | |||||
return(copyout(src_buf, dest_buf, size)); | |||||
} | |||||
/* | |||||
* Wrapper function to copy from user to kernel | |||||
*/ | |||||
int os_copy_from_user(struct pqisrc_softstate *softs, void *dest_buf, | |||||
void *src_buf, int size, int mode) | |||||
{ | |||||
return(copyin(src_buf, dest_buf, size)); | |||||
} | |||||
/* | |||||
* Device open function for ioctl entry | |||||
*/ | |||||
static int smartpqi_open(struct cdev *cdev, int flags, int devtype, | |||||
struct thread *td) | |||||
{ | |||||
int error = PQI_STATUS_SUCCESS; | |||||
return error; | |||||
} | |||||
/* | |||||
* Device close function for ioctl entry | |||||
*/ | |||||
static int smartpqi_close(struct cdev *cdev, int flags, int devtype, | |||||
struct thread *td) | |||||
{ | |||||
int error = PQI_STATUS_SUCCESS; | |||||
return error; | |||||
} | |||||
/* | |||||
* ioctl for getting driver info | |||||
*/ | |||||
static void smartpqi_get_driver_info_ioctl(caddr_t udata, struct cdev *cdev) | |||||
{ | |||||
struct pqisrc_softstate *softs = cdev->si_drv1; | |||||
pdriver_info driver_info = (pdriver_info)udata; | |||||
DBG_FUNC("IN udata = %p cdev = %p\n", udata, cdev); | |||||
driver_info->major_version = PQISRC_DRIVER_MAJOR; | |||||
driver_info->minor_version = PQISRC_DRIVER_MINOR; | |||||
driver_info->release_version = PQISRC_DRIVER_RELEASE; | |||||
driver_info->build_revision = PQISRC_DRIVER_REVISION; | |||||
driver_info->max_targets = PQI_MAX_DEVICES - 1; | |||||
driver_info->max_io = softs->max_io_for_scsi_ml; | |||||
driver_info->max_transfer_length = softs->pqi_cap.max_transfer_size; | |||||
DBG_FUNC("OUT\n"); | |||||
} | |||||
/* | |||||
* ioctl for getting controller info | |||||
*/ | |||||
static void smartpqi_get_pci_info_ioctl(caddr_t udata, struct cdev *cdev) | |||||
{ | |||||
struct pqisrc_softstate *softs = cdev->si_drv1; | |||||
device_t dev = softs->os_specific.pqi_dev; | |||||
pqi_pci_info_t *pci_info = (pqi_pci_info_t *)udata; | |||||
uint32_t sub_vendor = 0; | |||||
uint32_t sub_device = 0; | |||||
uint32_t vendor = 0; | |||||
uint32_t device = 0; | |||||
DBG_FUNC("IN udata = %p cdev = %p\n", udata, cdev); | |||||
pci_info->bus = pci_get_bus(dev); | |||||
pci_info->dev_fn = pci_get_function(dev); | |||||
pci_info->domain = pci_get_domain(dev); | |||||
sub_vendor = pci_read_config(dev, PCIR_SUBVEND_0, 2); | |||||
sub_device = pci_read_config(dev, PCIR_SUBDEV_0, 2); | |||||
pci_info->board_id = ((sub_device << 16) & 0xffff0000) | sub_vendor; | |||||
vendor = pci_get_vendor(dev); | |||||
device = pci_get_device(dev); | |||||
pci_info->chip_id = ((device << 16) & 0xffff0000) | vendor; | |||||
DBG_FUNC("OUT\n"); | |||||
} | |||||
/* | |||||
* ioctl entry point for user | |||||
*/ | |||||
static int smartpqi_ioctl(struct cdev *cdev, u_long cmd, caddr_t udata, | |||||
int flags, struct thread *td) | |||||
{ | |||||
int error = PQI_STATUS_SUCCESS; | |||||
struct pqisrc_softstate *softs = cdev->si_drv1; | |||||
DBG_FUNC("IN cmd = 0x%lx udata = %p cdev = %p\n", cmd, udata, cdev); | |||||
if (!udata) { | |||||
DBG_ERR("udata is null !!\n"); | |||||
} | |||||
if (pqisrc_ctrl_offline(softs)){ | |||||
DBG_ERR("Controller s offline !!\n"); | |||||
return ENOTTY; | |||||
} | |||||
switch (cmd) { | |||||
case CCISS_GETDRIVVER: | |||||
smartpqi_get_driver_info_ioctl(udata, cdev); | |||||
break; | |||||
case CCISS_GETPCIINFO: | |||||
smartpqi_get_pci_info_ioctl(udata, cdev); | |||||
break; | |||||
case SMARTPQI_PASS_THRU: | |||||
case CCISS_PASSTHRU: | |||||
error = pqisrc_passthru_ioctl(softs, udata, 0); | |||||
error = PQI_STATUS_SUCCESS; | |||||
break; | |||||
case CCISS_REGNEWD: | |||||
error = pqisrc_scan_devices(softs); | |||||
break; | |||||
default: | |||||
DBG_WARN( "!IOCTL cmd 0x%lx not supported", cmd); | |||||
error = ENOTTY; | |||||
break; | |||||
} | |||||
DBG_FUNC("OUT error = %d\n", error); | |||||
return error; | |||||
} | |||||
static d_open_t smartpqi_open; | |||||
static d_ioctl_t smartpqi_ioctl; | |||||
static d_close_t smartpqi_close; | |||||
static struct cdevsw smartpqi_cdevsw = | |||||
{ | |||||
.d_version = D_VERSION, | |||||
.d_open = smartpqi_open, | |||||
.d_close = smartpqi_close, | |||||
.d_ioctl = smartpqi_ioctl, | |||||
.d_name = "smartpqi", | |||||
}; | |||||
/* | |||||
* Function to create device node for ioctl | |||||
*/ | |||||
int create_char_dev(struct pqisrc_softstate *softs, int card_index) | |||||
{ | |||||
int error = PQI_STATUS_SUCCESS; | |||||
DBG_FUNC("IN idx = %d\n", card_index); | |||||
softs->os_specific.cdev = make_dev(&smartpqi_cdevsw, card_index, | |||||
UID_ROOT, GID_OPERATOR, 0640, | |||||
"smartpqi%u", card_index); | |||||
if(softs->os_specific.cdev) { | |||||
softs->os_specific.cdev->si_drv1 = softs; | |||||
} else { | |||||
error = PQI_STATUS_FAILURE; | |||||
} | |||||
DBG_FUNC("OUT error = %d\n", error); | |||||
return error; | |||||
} | |||||
/* | |||||
* Function to destroy device node for ioctl | |||||
*/ | |||||
void destroy_char_dev(struct pqisrc_softstate *softs) | |||||
{ | |||||
DBG_FUNC("IN\n"); | |||||
if (softs->os_specific.cdev) { | |||||
destroy_dev(softs->os_specific.cdev); | |||||
softs->os_specific.cdev = NULL; | |||||
} | |||||
DBG_FUNC("OUT\n"); | |||||
} | |||||
/* | |||||
* Function used to send passthru commands to adapter | |||||
* to support management tools. For eg. ssacli, sscon. | |||||
*/ | |||||
int | |||||
pqisrc_passthru_ioctl(struct pqisrc_softstate *softs, void *arg, int mode) | |||||
{ | |||||
int ret = PQI_STATUS_SUCCESS; | |||||
char *drv_buf = NULL; | |||||
uint32_t tag = 0; | |||||
IOCTL_Command_struct *iocommand = (IOCTL_Command_struct *)arg; | |||||
dma_mem_t ioctl_dma_buf; | |||||
pqisrc_raid_req_t request; | |||||
raid_path_error_info_elem_t error_info; | |||||
ib_queue_t *ib_q = &softs->op_raid_ib_q[PQI_DEFAULT_IB_QUEUE]; | |||||
ob_queue_t *ob_q = &softs->op_ob_q[PQI_DEFAULT_IB_QUEUE]; | |||||
rcb_t *rcb = NULL; | |||||
memset(&request, 0, sizeof(request)); | |||||
memset(&error_info, 0, sizeof(error_info)); | |||||
DBG_FUNC("IN"); | |||||
if (pqisrc_ctrl_offline(softs)) | |||||
return PQI_STATUS_FAILURE; | |||||
if (!arg) | |||||
return (PQI_STATUS_FAILURE); | |||||
if (iocommand->buf_size < 1 && | |||||
iocommand->Request.Type.Direction != PQIIOCTL_NONE) | |||||
return PQI_STATUS_FAILURE; | |||||
if (iocommand->Request.CDBLen > sizeof(request.cdb)) | |||||
return PQI_STATUS_FAILURE; | |||||
switch (iocommand->Request.Type.Direction) { | |||||
case PQIIOCTL_NONE: | |||||
case PQIIOCTL_WRITE: | |||||
case PQIIOCTL_READ: | |||||
case PQIIOCTL_BIDIRECTIONAL: | |||||
break; | |||||
default: | |||||
return PQI_STATUS_FAILURE; | |||||
} | |||||
if (iocommand->buf_size > 0) { | |||||
memset(&ioctl_dma_buf, 0, sizeof(struct dma_mem)); | |||||
ioctl_dma_buf.tag = "Ioctl_PassthruCmd_Buffer"; | |||||
ioctl_dma_buf.size = iocommand->buf_size; | |||||
ioctl_dma_buf.align = PQISRC_DEFAULT_DMA_ALIGN; | |||||
/* allocate memory */ | |||||
ret = os_dma_mem_alloc(softs, &ioctl_dma_buf); | |||||
if (ret) { | |||||
DBG_ERR("Failed to Allocate dma mem for Ioctl PassthruCmd Buffer : %d\n", ret); | |||||
ret = PQI_STATUS_FAILURE; | |||||
goto out; | |||||
} | |||||
DBG_INFO("ioctl_dma_buf.dma_addr = %p\n",(void*)ioctl_dma_buf.dma_addr); | |||||
DBG_INFO("ioctl_dma_buf.virt_addr = %p\n",(void*)ioctl_dma_buf.virt_addr); | |||||
drv_buf = (char *)ioctl_dma_buf.virt_addr; | |||||
if (iocommand->Request.Type.Direction & PQIIOCTL_WRITE) { | |||||
if ((ret = os_copy_from_user(softs, (void *)drv_buf, (void *)iocommand->buf, | |||||
iocommand->buf_size, mode)) != 0) { | |||||
ret = PQI_STATUS_FAILURE; | |||||
goto free_mem; | |||||
} | |||||
} | |||||
} | |||||
request.header.iu_type = PQI_IU_TYPE_RAID_PATH_IO_REQUEST; | |||||
request.header.iu_length = offsetof(pqisrc_raid_req_t, sg_descriptors[1]) - | |||||
PQI_REQUEST_HEADER_LENGTH; | |||||
memcpy(request.lun_number, iocommand->LUN_info.LunAddrBytes, | |||||
sizeof(request.lun_number)); | |||||
memcpy(request.cdb, iocommand->Request.CDB, iocommand->Request.CDBLen); | |||||
request.additional_cdb_bytes_usage = PQI_ADDITIONAL_CDB_BYTES_0; | |||||
switch (iocommand->Request.Type.Direction) { | |||||
case PQIIOCTL_NONE: | |||||
request.data_direction = SOP_DATA_DIR_NONE; | |||||
break; | |||||
case PQIIOCTL_WRITE: | |||||
request.data_direction = SOP_DATA_DIR_FROM_DEVICE; | |||||
break; | |||||
case PQIIOCTL_READ: | |||||
request.data_direction = SOP_DATA_DIR_TO_DEVICE; | |||||
break; | |||||
case PQIIOCTL_BIDIRECTIONAL: | |||||
request.data_direction = SOP_DATA_DIR_BIDIRECTIONAL; | |||||
break; | |||||
} | |||||
request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE; | |||||
if (iocommand->buf_size > 0) { | |||||
request.buffer_length = iocommand->buf_size; | |||||
request.sg_descriptors[0].addr = ioctl_dma_buf.dma_addr; | |||||
request.sg_descriptors[0].len = iocommand->buf_size; | |||||
request.sg_descriptors[0].flags = SG_FLAG_LAST; | |||||
} | |||||
tag = pqisrc_get_tag(&softs->taglist); | |||||
request.request_id = tag; | |||||
request.response_queue_id = ob_q->q_id; | |||||
request.error_index = request.request_id; | |||||
rcb = &softs->rcb[tag]; | |||||
rcb->success_cmp_callback = pqisrc_process_internal_raid_response_success; | |||||
rcb->error_cmp_callback = pqisrc_process_internal_raid_response_error; | |||||
rcb->tag = tag; | |||||
rcb->req_pending = true; | |||||
/* Submit Command */ | |||||
ret = pqisrc_submit_cmnd(softs, ib_q, &request); | |||||
if (ret != PQI_STATUS_SUCCESS) { | |||||
DBG_ERR("Unable to submit command\n"); | |||||
goto err_out; | |||||
} | |||||
ret = pqisrc_wait_on_condition(softs, rcb); | |||||
if (ret != PQI_STATUS_SUCCESS) { | |||||
DBG_ERR("Passthru IOCTL cmd timed out !!\n"); | |||||
goto err_out; | |||||
} | |||||
memset(&iocommand->error_info, 0, sizeof(iocommand->error_info)); | |||||
if (rcb->status) { | |||||
size_t sense_data_length; | |||||
memcpy(&error_info, rcb->error_info, sizeof(error_info)); | |||||
iocommand->error_info.ScsiStatus = error_info.status; | |||||
sense_data_length = error_info.sense_data_len; | |||||
if (!sense_data_length) | |||||
sense_data_length = error_info.resp_data_len; | |||||
if (sense_data_length && | |||||
(sense_data_length > sizeof(error_info.data))) | |||||
sense_data_length = sizeof(error_info.data); | |||||
if (sense_data_length) { | |||||
if (sense_data_length > | |||||
sizeof(iocommand->error_info.SenseInfo)) | |||||
sense_data_length = | |||||
sizeof(iocommand->error_info.SenseInfo); | |||||
memcpy (iocommand->error_info.SenseInfo, | |||||
error_info.data, sense_data_length); | |||||
iocommand->error_info.SenseLen = sense_data_length; | |||||
} | |||||
if (error_info.data_out_result == | |||||
PQI_RAID_DATA_IN_OUT_UNDERFLOW){ | |||||
rcb->status = REQUEST_SUCCESS; | |||||
} | |||||
} | |||||
if (rcb->status == REQUEST_SUCCESS && iocommand->buf_size > 0 && | |||||
(iocommand->Request.Type.Direction & PQIIOCTL_READ)) { | |||||
if ((ret = os_copy_to_user(softs, (void*)iocommand->buf, | |||||
(void*)drv_buf, iocommand->buf_size, mode)) != 0) { | |||||
DBG_ERR("Failed to copy the response\n"); | |||||
goto err_out; | |||||
} | |||||
} | |||||
os_reset_rcb(rcb); | |||||
pqisrc_put_tag(&softs->taglist, request.request_id); | |||||
if (iocommand->buf_size > 0) | |||||
os_dma_mem_free(softs,&ioctl_dma_buf); | |||||
DBG_FUNC("OUT\n"); | |||||
return ret; | |||||
err_out: | |||||
os_reset_rcb(rcb); | |||||
pqisrc_put_tag(&softs->taglist, request.request_id); | |||||
free_mem: | |||||
if (iocommand->buf_size > 0) | |||||
os_dma_mem_free(softs, &ioctl_dma_buf); | |||||
out: | |||||
DBG_FUNC("Failed OUT\n"); | |||||
return PQI_STATUS_FAILURE; | |||||
} |