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freebsd-skq/sys/dev/smartpqi/smartpqi_discovery.c
Sean Bruno b17f4335d2 smartpqi(4): 
- Update to release "3"

Submitted by:	Deepak Ukey <deepak.ukey@microsemi.com>
Reviewed by:	mav
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D16060
2018-07-11 16:44:14 +00:00

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/*-
* 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.
*/
/* $FreeBSD$ */
#include "smartpqi_includes.h"
/* Validate the scsi sense response code */
static inline boolean_t pqisrc_scsi_sense_valid(const struct sense_header_scsi *sshdr)
{
DBG_FUNC("IN\n");
if (!sshdr)
return false;
DBG_FUNC("OUT\n");
return (sshdr->response_code & 0x70) == 0x70;
}
/* Initialize target ID pool for HBA/PDs */
void pqisrc_init_targetid_pool(pqisrc_softstate_t *softs)
{
int i, tid = PQI_MAX_PHYSICALS + PQI_MAX_LOGICALS - 1;
for(i = 0; i < PQI_MAX_PHYSICALS; i++) {
softs->tid_pool.tid[i] = tid--;
}
softs->tid_pool.index = i - 1;
}
int pqisrc_alloc_tid(pqisrc_softstate_t *softs)
{
if(softs->tid_pool.index <= -1) {
DBG_ERR("Target ID exhausted\n");
return INVALID_ELEM;
}
return softs->tid_pool.tid[softs->tid_pool.index--];
}
void pqisrc_free_tid(pqisrc_softstate_t *softs, int tid)
{
if(softs->tid_pool.index >= PQI_MAX_PHYSICALS) {
DBG_ERR("Target ID queue is full\n");
return;
}
softs->tid_pool.index++;
softs->tid_pool.tid[softs->tid_pool.index] = tid;
}
/* Update scsi sense info to a local buffer*/
boolean_t pqisrc_update_scsi_sense(const uint8_t *buff, int len,
struct sense_header_scsi *header)
{
DBG_FUNC("IN\n");
if (!buff || !len)
return false;
memset(header, 0, sizeof(struct sense_header_scsi));
header->response_code = (buff[0] & 0x7f);
if (!pqisrc_scsi_sense_valid(header))
return false;
if (header->response_code >= 0x72) {
/* descriptor format */
if (len > 1)
header->sense_key = (buff[1] & 0xf);
if (len > 2)
header->asc = buff[2];
if (len > 3)
header->ascq = buff[3];
if (len > 7)
header->additional_length = buff[7];
} else {
/* fixed format */
if (len > 2)
header->sense_key = (buff[2] & 0xf);
if (len > 7) {
len = (len < (buff[7] + 8)) ?
len : (buff[7] + 8);
if (len > 12)
header->asc = buff[12];
if (len > 13)
header->ascq = buff[13];
}
}
DBG_FUNC("OUT\n");
return true;
}
/*
* Function used to build the internal raid request and analyze the response
*/
int pqisrc_build_send_raid_request(pqisrc_softstate_t *softs, pqisrc_raid_req_t *request,
void *buff, size_t datasize, uint8_t cmd, uint16_t vpd_page, uint8_t *scsi3addr,
raid_path_error_info_elem_t *error_info)
{
uint8_t *cdb;
int ret = PQI_STATUS_SUCCESS;
uint32_t tag = 0;
struct dma_mem device_mem;
sgt_t *sgd;
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;
DBG_FUNC("IN\n");
memset(&device_mem, 0, sizeof(struct dma_mem));
/* for TUR datasize: 0 buff: NULL */
if (datasize) {
device_mem.tag = "device_mem";
device_mem.size = datasize;
device_mem.align = PQISRC_DEFAULT_DMA_ALIGN;
ret = os_dma_mem_alloc(softs, &device_mem);
if (ret) {
DBG_ERR("failed to allocate dma memory for device_mem return code %d\n", ret);
return ret;
}
sgd = (sgt_t *)&request->sg_descriptors[0];
sgd->addr = device_mem.dma_addr;
sgd->len = datasize;
sgd->flags = SG_FLAG_LAST;
}
/* Build raid path request */
request->header.iu_type = PQI_IU_TYPE_RAID_PATH_IO_REQUEST;
request->header.iu_length = LE_16(offsetof(pqisrc_raid_req_t,
sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH);
request->buffer_length = LE_32(datasize);
memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number));
request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
request->additional_cdb_bytes_usage = PQI_ADDITIONAL_CDB_BYTES_0;
cdb = request->cdb;
switch (cmd) {
case SA_INQUIRY:
request->data_direction = SOP_DATA_DIR_TO_DEVICE;
cdb[0] = SA_INQUIRY;
if (vpd_page & VPD_PAGE) {
cdb[1] = 0x1;
cdb[2] = (uint8_t)vpd_page;
}
cdb[4] = (uint8_t)datasize;
break;
case SA_REPORT_LOG:
case SA_REPORT_PHYS:
request->data_direction = SOP_DATA_DIR_TO_DEVICE;
cdb[0] = cmd;
if (cmd == SA_REPORT_PHYS)
cdb[1] = SA_REPORT_PHYS_EXTENDED;
else
cdb[1] = SA_REPORT_LOG_EXTENDED;
cdb[8] = (uint8_t)((datasize) >> 8);
cdb[9] = (uint8_t)datasize;
break;
case TEST_UNIT_READY:
request->data_direction = SOP_DATA_DIR_NONE;
break;
case SA_GET_RAID_MAP:
request->data_direction = SOP_DATA_DIR_TO_DEVICE;
cdb[0] = SA_CISS_READ;
cdb[1] = cmd;
cdb[8] = (uint8_t)((datasize) >> 8);
cdb[9] = (uint8_t)datasize;
break;
case SA_CACHE_FLUSH:
request->data_direction = SOP_DATA_DIR_FROM_DEVICE;
memcpy(device_mem.virt_addr, buff, datasize);
cdb[0] = BMIC_WRITE;
cdb[6] = BMIC_CACHE_FLUSH;
cdb[7] = (uint8_t)((datasize) << 8);
cdb[8] = (uint8_t)((datasize) >> 8);
break;
case BMIC_IDENTIFY_CONTROLLER:
case BMIC_IDENTIFY_PHYSICAL_DEVICE:
request->data_direction = SOP_DATA_DIR_TO_DEVICE;
cdb[0] = BMIC_READ;
cdb[6] = cmd;
cdb[7] = (uint8_t)((datasize) << 8);
cdb[8] = (uint8_t)((datasize) >> 8);
break;
case BMIC_WRITE_HOST_WELLNESS:
request->data_direction = SOP_DATA_DIR_FROM_DEVICE;
memcpy(device_mem.virt_addr, buff, datasize);
cdb[0] = BMIC_WRITE;
cdb[6] = cmd;
cdb[7] = (uint8_t)((datasize) << 8);
cdb[8] = (uint8_t)((datasize) >> 8);
break;
case BMIC_SENSE_SUBSYSTEM_INFORMATION:
request->data_direction = SOP_DATA_DIR_TO_DEVICE;
cdb[0] = BMIC_READ;
cdb[6] = cmd;
cdb[7] = (uint8_t)((datasize) << 8);
cdb[8] = (uint8_t)((datasize) >> 8);
break;
default:
DBG_ERR("unknown command 0x%x", cmd);
break;
}
tag = pqisrc_get_tag(&softs->taglist);
if (INVALID_ELEM == tag) {
DBG_ERR("Tag not available\n");
ret = PQI_STATUS_FAILURE;
goto err_notag;
}
((pqisrc_raid_req_t *)request)->request_id = tag;
((pqisrc_raid_req_t *)request)->error_index = ((pqisrc_raid_req_t *)request)->request_id;
((pqisrc_raid_req_t *)request)->response_queue_id = ob_q->q_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->req_pending = true;
rcb->tag = tag;
/* 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("Internal RAID request timed out: cmd : 0x%c\n", cmd);
goto err_out;
}
if (datasize) {
if (buff) {
memcpy(buff, device_mem.virt_addr, datasize);
}
os_dma_mem_free(softs, &device_mem);
}
ret = rcb->status;
if (ret) {
if(error_info) {
memcpy(error_info,
rcb->error_info,
sizeof(*error_info));
if (error_info->data_out_result ==
PQI_RAID_DATA_IN_OUT_UNDERFLOW) {
ret = PQI_STATUS_SUCCESS;
}
else{
DBG_DISC("Error!! Bus=%u Target=%u, Cmd=0x%x,"
"Ret=%d\n", BMIC_GET_LEVEL_2_BUS(scsi3addr),
BMIC_GET_LEVEL_TWO_TARGET(scsi3addr),
cmd, ret);
ret = PQI_STATUS_FAILURE;
}
}
} else {
if(error_info) {
ret = PQI_STATUS_SUCCESS;
memset(error_info, 0, sizeof(*error_info));
}
}
os_reset_rcb(rcb);
pqisrc_put_tag(&softs->taglist, ((pqisrc_raid_req_t *)request)->request_id);
DBG_FUNC("OUT\n");
return ret;
err_out:
DBG_ERR("Error!! Bus=%u Target=%u, Cmd=0x%x, Ret=%d\n",
BMIC_GET_LEVEL_2_BUS(scsi3addr), BMIC_GET_LEVEL_TWO_TARGET(scsi3addr),
cmd, ret);
os_reset_rcb(rcb);
pqisrc_put_tag(&softs->taglist, ((pqisrc_raid_req_t *)request)->request_id);
err_notag:
if (datasize)
os_dma_mem_free(softs, &device_mem);
DBG_FUNC("FAILED \n");
return ret;
}
/* common function used to send report physical and logical luns cmnds*/
static int pqisrc_report_luns(pqisrc_softstate_t *softs, uint8_t cmd,
void *buff, size_t buf_len)
{
int ret;
pqisrc_raid_req_t request;
DBG_FUNC("IN\n");
memset(&request, 0, sizeof(request));
ret = pqisrc_build_send_raid_request(softs, &request, buff,
buf_len, cmd, 0, (uint8_t *)RAID_CTLR_LUNID, NULL);
DBG_FUNC("OUT\n");
return ret;
}
/* subroutine used to get physical and logical luns of the device */
static int pqisrc_get_physical_logical_luns(pqisrc_softstate_t *softs, uint8_t cmd,
reportlun_data_ext_t **buff, size_t *data_length)
{
int ret;
size_t list_len;
size_t data_len;
size_t new_lun_list_length;
reportlun_data_ext_t *lun_data;
reportlun_header_t report_lun_header;
DBG_FUNC("IN\n");
ret = pqisrc_report_luns(softs, cmd, &report_lun_header,
sizeof(report_lun_header));
if (ret) {
DBG_ERR("failed return code: %d\n", ret);
return ret;
}
list_len = BE_32(report_lun_header.list_length);
retry:
data_len = sizeof(reportlun_header_t) + list_len;
*data_length = data_len;
lun_data = os_mem_alloc(softs, data_len);
if (!lun_data) {
DBG_ERR("failed to allocate memory for lun_data\n");
return PQI_STATUS_FAILURE;
}
if (list_len == 0) {
DBG_DISC("list_len is 0\n");
memcpy(lun_data, &report_lun_header, sizeof(report_lun_header));
goto out;
}
ret = pqisrc_report_luns(softs, cmd, lun_data, data_len);
if (ret) {
DBG_ERR("error\n");
goto error;
}
new_lun_list_length = BE_32(lun_data->header.list_length);
if (new_lun_list_length > list_len) {
list_len = new_lun_list_length;
os_mem_free(softs, (void *)lun_data, data_len);
goto retry;
}
out:
*buff = lun_data;
DBG_FUNC("OUT\n");
return 0;
error:
os_mem_free(softs, (void *)lun_data, data_len);
DBG_ERR("FAILED\n");
return ret;
}
/*
* Function used to get physical and logical device list
*/
static int pqisrc_get_phys_log_device_list(pqisrc_softstate_t *softs,
reportlun_data_ext_t **physical_dev_list,
reportlun_data_ext_t **logical_dev_list,
size_t *phys_data_length,
size_t *log_data_length)
{
int ret = PQI_STATUS_SUCCESS;
size_t logical_list_length;
size_t logdev_data_length;
size_t data_length;
reportlun_data_ext_t *local_logdev_list;
reportlun_data_ext_t *logdev_data;
reportlun_header_t report_lun_header;
DBG_FUNC("IN\n");
ret = pqisrc_get_physical_logical_luns(softs, SA_REPORT_PHYS, physical_dev_list, phys_data_length);
if (ret) {
DBG_ERR("report physical LUNs failed");
return ret;
}
ret = pqisrc_get_physical_logical_luns(softs, SA_REPORT_LOG, logical_dev_list, log_data_length);
if (ret) {
DBG_ERR("report logical LUNs failed");
return ret;
}
logdev_data = *logical_dev_list;
if (logdev_data) {
logical_list_length =
BE_32(logdev_data->header.list_length);
} else {
memset(&report_lun_header, 0, sizeof(report_lun_header));
logdev_data =
(reportlun_data_ext_t *)&report_lun_header;
logical_list_length = 0;
}
logdev_data_length = sizeof(reportlun_header_t) +
logical_list_length;
/* Adding LOGICAL device entry for controller */
local_logdev_list = os_mem_alloc(softs,
logdev_data_length + sizeof(reportlun_ext_entry_t));
if (!local_logdev_list) {
data_length = *log_data_length;
os_mem_free(softs, (char *)*logical_dev_list, data_length);
*logical_dev_list = NULL;
return PQI_STATUS_FAILURE;
}
memcpy(local_logdev_list, logdev_data, logdev_data_length);
memset((uint8_t *)local_logdev_list + logdev_data_length, 0,
sizeof(reportlun_ext_entry_t));
local_logdev_list->header.list_length = BE_32(logical_list_length +
sizeof(reportlun_ext_entry_t));
data_length = *log_data_length;
os_mem_free(softs, (char *)*logical_dev_list, data_length);
*log_data_length = logdev_data_length + sizeof(reportlun_ext_entry_t);
*logical_dev_list = local_logdev_list;
DBG_FUNC("OUT\n");
return ret;
}
/* Subroutine used to set Bus-Target-Lun for the requested device */
static inline void pqisrc_set_btl(pqi_scsi_dev_t *device,
int bus, int target, int lun)
{
DBG_FUNC("IN\n");
device->bus = bus;
device->target = target;
device->lun = lun;
DBG_FUNC("OUT\n");
}
inline boolean_t pqisrc_is_external_raid_device(pqi_scsi_dev_t *device)
{
return device->is_external_raid_device;
}
static inline boolean_t pqisrc_is_external_raid_addr(uint8_t *scsi3addr)
{
return scsi3addr[2] != 0;
}
/* Function used to assign Bus-Target-Lun for the requested device */
static void pqisrc_assign_btl(pqi_scsi_dev_t *device)
{
uint8_t *scsi3addr;
uint32_t lunid;
uint32_t bus;
uint32_t target;
uint32_t lun;
DBG_FUNC("IN\n");
scsi3addr = device->scsi3addr;
lunid = GET_LE32(scsi3addr);
if (pqisrc_is_hba_lunid(scsi3addr)) {
/* The specified device is the controller. */
pqisrc_set_btl(device, PQI_HBA_BUS, PQI_CTLR_INDEX, lunid & 0x3fff);
device->target_lun_valid = true;
return;
}
if (pqisrc_is_logical_device(device)) {
if (pqisrc_is_external_raid_device(device)) {
DBG_DISC("External Raid Device!!!");
bus = PQI_EXTERNAL_RAID_VOLUME_BUS;
target = (lunid >> 16) & 0x3fff;
lun = lunid & 0xff;
} else {
bus = PQI_RAID_VOLUME_BUS;
lun = 0;
target = lunid & 0x3fff;
}
pqisrc_set_btl(device, bus, target, lun);
device->target_lun_valid = true;
return;
}
DBG_FUNC("OUT\n");
}
/* Build and send the internal INQUIRY command to particular device */
static int pqisrc_send_scsi_inquiry(pqisrc_softstate_t *softs,
uint8_t *scsi3addr, uint16_t vpd_page, uint8_t *buff, int buf_len)
{
int ret = PQI_STATUS_SUCCESS;
pqisrc_raid_req_t request;
raid_path_error_info_elem_t error_info;
DBG_FUNC("IN\n");
memset(&request, 0, sizeof(request));
ret = pqisrc_build_send_raid_request(softs, &request, buff, buf_len,
SA_INQUIRY, vpd_page, scsi3addr, &error_info);
DBG_FUNC("OUT\n");
return ret;
}
/* Function used to parse the sense information from response */
static void pqisrc_fetch_sense_info(const uint8_t *sense_data,
unsigned sense_data_length, uint8_t *sense_key, uint8_t *asc, uint8_t *ascq)
{
struct sense_header_scsi header;
DBG_FUNC("IN\n");
*sense_key = 0;
*ascq = 0;
*asc = 0;
if (pqisrc_update_scsi_sense(sense_data, sense_data_length, &header)) {
*sense_key = header.sense_key;
*asc = header.asc;
*ascq = header.ascq;
}
DBG_DISC("sense_key: %x asc: %x ascq: %x\n", *sense_key, *asc, *ascq);
DBG_FUNC("OUT\n");
}
/* Function used to validate volume offline status */
static uint8_t pqisrc_get_volume_offline_status(pqisrc_softstate_t *softs,
uint8_t *scsi3addr)
{
int ret = PQI_STATUS_SUCCESS;
uint8_t status = SA_LV_STATUS_VPD_UNSUPPORTED;
uint8_t size;
uint8_t *buff = NULL;
DBG_FUNC("IN\n");
buff = os_mem_alloc(softs, 64);
if (!buff)
return PQI_STATUS_FAILURE;
/* Get the size of the VPD return buff. */
ret = pqisrc_send_scsi_inquiry(softs, scsi3addr, VPD_PAGE | SA_VPD_LV_STATUS,
buff, SCSI_VPD_HEADER_LENGTH);
if (ret)
goto out;
size = buff[3];
/* Now get the whole VPD buff. */
ret = pqisrc_send_scsi_inquiry(softs, scsi3addr, VPD_PAGE | SA_VPD_LV_STATUS,
buff, size + SCSI_VPD_HEADER_LENGTH);
if (ret)
goto out;
status = buff[4];
out:
os_mem_free(softs, (char *)buff, 64);
DBG_FUNC("OUT\n");
return status;
}
/* Determine offline status of a volume. Returns appropriate SA_LV_* status.*/
static uint8_t pqisrc_get_dev_vol_status(pqisrc_softstate_t *softs,
uint8_t *scsi3addr)
{
int ret = PQI_STATUS_SUCCESS;
uint8_t *sense_data;
unsigned sense_data_len;
uint8_t sense_key;
uint8_t asc;
uint8_t ascq;
uint8_t off_status;
uint8_t scsi_status;
pqisrc_raid_req_t request;
raid_path_error_info_elem_t error_info;
DBG_FUNC("IN\n");
memset(&request, 0, sizeof(request));
ret = pqisrc_build_send_raid_request(softs, &request, NULL, 0,
TEST_UNIT_READY, 0, scsi3addr, &error_info);
if (ret)
goto error;
sense_data = error_info.data;
sense_data_len = LE_16(error_info.sense_data_len);
if (sense_data_len > sizeof(error_info.data))
sense_data_len = sizeof(error_info.data);
pqisrc_fetch_sense_info(sense_data, sense_data_len, &sense_key, &asc,
&ascq);
scsi_status = error_info.status;
/* scsi status: "CHECK CONDN" / SK: "not ready" ? */
if (scsi_status != 2 ||
sense_key != 2 ||
asc != ASC_LUN_NOT_READY) {
return SA_LV_OK;
}
/* Determine the reason for not ready state. */
off_status = pqisrc_get_volume_offline_status(softs, scsi3addr);
DBG_DISC("offline_status 0x%x\n", off_status);
/* Keep volume offline in certain cases. */
switch (off_status) {
case SA_LV_UNDERGOING_ERASE:
case SA_LV_NOT_AVAILABLE:
case SA_LV_UNDERGOING_RPI:
case SA_LV_PENDING_RPI:
case SA_LV_ENCRYPTED_NO_KEY:
case SA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER:
case SA_LV_UNDERGOING_ENCRYPTION:
case SA_LV_UNDERGOING_ENCRYPTION_REKEYING:
case SA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER:
return off_status;
case SA_LV_STATUS_VPD_UNSUPPORTED:
/*
* If the VPD status page isn't available,
* use ASC/ASCQ to determine state.
*/
if (ascq == ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS ||
ascq == ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ)
return off_status;
break;
}
DBG_FUNC("OUT\n");
return SA_LV_OK;
error:
return SA_LV_STATUS_VPD_UNSUPPORTED;
}
/* Validate the RAID map parameters */
static int pqisrc_raid_map_validation(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device, pqisrc_raid_map_t *raid_map)
{
char *error_msg;
uint32_t raidmap_size;
uint32_t r5or6_blocks_per_row;
unsigned phys_dev_num;
unsigned num_raidmap_entries;
DBG_FUNC("IN\n");
raidmap_size = LE_32(raid_map->structure_size);
if (raidmap_size < offsetof(pqisrc_raid_map_t, dev_data)) {
error_msg = "RAID map too small\n";
goto error;
}
if (raidmap_size > sizeof(*raid_map)) {
error_msg = "RAID map too large\n";
goto error;
}
phys_dev_num = LE_16(raid_map->layout_map_count) *
(LE_16(raid_map->data_disks_per_row) +
LE_16(raid_map->metadata_disks_per_row));
num_raidmap_entries = phys_dev_num *
LE_16(raid_map->row_cnt);
if (num_raidmap_entries > RAID_MAP_MAX_ENTRIES) {
error_msg = "invalid number of map entries in RAID map\n";
goto error;
}
if (device->raid_level == SA_RAID_1) {
if (LE_16(raid_map->layout_map_count) != 2) {
error_msg = "invalid RAID-1 map\n";
goto error;
}
} else if (device->raid_level == SA_RAID_ADM) {
if (LE_16(raid_map->layout_map_count) != 3) {
error_msg = "invalid RAID-1(ADM) map\n";
goto error;
}
} else if ((device->raid_level == SA_RAID_5 ||
device->raid_level == SA_RAID_6) &&
LE_16(raid_map->layout_map_count) > 1) {
/* RAID 50/60 */
r5or6_blocks_per_row =
LE_16(raid_map->strip_size) *
LE_16(raid_map->data_disks_per_row);
if (r5or6_blocks_per_row == 0) {
error_msg = "invalid RAID-5 or RAID-6 map\n";
goto error;
}
}
DBG_FUNC("OUT\n");
return 0;
error:
DBG_ERR("%s\n", error_msg);
return PQI_STATUS_FAILURE;
}
/* Get device raidmap for the requested device */
static int pqisrc_get_device_raidmap(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device)
{
int ret = PQI_STATUS_SUCCESS;
pqisrc_raid_req_t request;
pqisrc_raid_map_t *raid_map;
DBG_FUNC("IN\n");
raid_map = os_mem_alloc(softs, sizeof(*raid_map));
if (!raid_map)
return PQI_STATUS_FAILURE;
memset(&request, 0, sizeof(request));
ret = pqisrc_build_send_raid_request(softs, &request, raid_map, sizeof(*raid_map),
SA_GET_RAID_MAP, 0, device->scsi3addr, NULL);
if (ret) {
DBG_ERR("error in build send raid req ret=%d\n", ret);
goto err_out;
}
ret = pqisrc_raid_map_validation(softs, device, raid_map);
if (ret) {
DBG_ERR("error in raid map validation ret=%d\n", ret);
goto err_out;
}
device->raid_map = raid_map;
DBG_FUNC("OUT\n");
return 0;
err_out:
os_mem_free(softs, (char*)raid_map, sizeof(*raid_map));
DBG_FUNC("FAILED \n");
return ret;
}
/* Get device ioaccel_status to validate the type of device */
static void pqisrc_get_dev_ioaccel_status(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device)
{
int ret = PQI_STATUS_SUCCESS;
uint8_t *buff;
uint8_t ioaccel_status;
DBG_FUNC("IN\n");
buff = os_mem_alloc(softs, 64);
if (!buff)
return;
ret = pqisrc_send_scsi_inquiry(softs, device->scsi3addr,
VPD_PAGE | SA_VPD_LV_IOACCEL_STATUS, buff, 64);
if (ret) {
DBG_ERR("error in send scsi inquiry ret=%d\n", ret);
goto err_out;
}
ioaccel_status = buff[IOACCEL_STATUS_BYTE];
device->offload_config =
!!(ioaccel_status & OFFLOAD_CONFIGURED_BIT);
if (device->offload_config) {
device->offload_enabled_pending =
!!(ioaccel_status & OFFLOAD_ENABLED_BIT);
if (pqisrc_get_device_raidmap(softs, device))
device->offload_enabled_pending = false;
}
DBG_DISC("offload_config: 0x%x offload_enabled_pending: 0x%x \n",
device->offload_config, device->offload_enabled_pending);
err_out:
os_mem_free(softs, (char*)buff, 64);
DBG_FUNC("OUT\n");
}
/* Get RAID level of requested device */
static void pqisrc_get_dev_raid_level(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device)
{
uint8_t raid_level;
uint8_t *buff;
DBG_FUNC("IN\n");
raid_level = SA_RAID_UNKNOWN;
buff = os_mem_alloc(softs, 64);
if (buff) {
int ret;
ret = pqisrc_send_scsi_inquiry(softs, device->scsi3addr,
VPD_PAGE | SA_VPD_LV_DEVICE_GEOMETRY, buff, 64);
if (ret == 0) {
raid_level = buff[8];
if (raid_level > SA_RAID_MAX)
raid_level = SA_RAID_UNKNOWN;
}
os_mem_free(softs, (char*)buff, 64);
}
device->raid_level = raid_level;
DBG_DISC("RAID LEVEL: %x \n", raid_level);
DBG_FUNC("OUT\n");
}
/* Parse the inquiry response and determine the type of device */
static int pqisrc_get_dev_data(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device)
{
int ret = PQI_STATUS_SUCCESS;
uint8_t *inq_buff;
DBG_FUNC("IN\n");
inq_buff = os_mem_alloc(softs, OBDR_TAPE_INQ_SIZE);
if (!inq_buff)
return PQI_STATUS_FAILURE;
/* Send an inquiry to the device to see what it is. */
ret = pqisrc_send_scsi_inquiry(softs, device->scsi3addr, 0, inq_buff,
OBDR_TAPE_INQ_SIZE);
if (ret)
goto err_out;
pqisrc_sanitize_inquiry_string(&inq_buff[8], 8);
pqisrc_sanitize_inquiry_string(&inq_buff[16], 16);
device->devtype = inq_buff[0] & 0x1f;
memcpy(device->vendor, &inq_buff[8],
sizeof(device->vendor));
memcpy(device->model, &inq_buff[16],
sizeof(device->model));
DBG_DISC("DEV_TYPE: %x VENDOR: %s MODEL: %s\n", device->devtype, device->vendor, device->model);
if (pqisrc_is_logical_device(device) && device->devtype == DISK_DEVICE) {
if (pqisrc_is_external_raid_device(device)) {
device->raid_level = SA_RAID_UNKNOWN;
device->volume_status = SA_LV_OK;
device->volume_offline = false;
}
else {
pqisrc_get_dev_raid_level(softs, device);
pqisrc_get_dev_ioaccel_status(softs, device);
device->volume_status = pqisrc_get_dev_vol_status(softs,
device->scsi3addr);
device->volume_offline = device->volume_status != SA_LV_OK;
}
}
/*
* Check if this is a One-Button-Disaster-Recovery device
* by looking for "$DR-10" at offset 43 in the inquiry data.
*/
device->is_obdr_device = (device->devtype == ROM_DEVICE &&
memcmp(&inq_buff[OBDR_SIG_OFFSET], OBDR_TAPE_SIG,
OBDR_SIG_LEN) == 0);
err_out:
os_mem_free(softs, (char*)inq_buff, OBDR_TAPE_INQ_SIZE);
DBG_FUNC("OUT\n");
return ret;
}
/*
* BMIC (Basic Management And Interface Commands) command
* to get the controller identify params
*/
static int pqisrc_identify_ctrl(pqisrc_softstate_t *softs,
bmic_ident_ctrl_t *buff)
{
int ret = PQI_STATUS_SUCCESS;
pqisrc_raid_req_t request;
DBG_FUNC("IN\n");
memset(&request, 0, sizeof(request));
ret = pqisrc_build_send_raid_request(softs, &request, buff, sizeof(*buff),
BMIC_IDENTIFY_CONTROLLER, 0, (uint8_t *)RAID_CTLR_LUNID, NULL);
DBG_FUNC("OUT\n");
return ret;
}
/* Get the adapter FW version using BMIC_IDENTIFY_CONTROLLER */
int pqisrc_get_ctrl_fw_version(pqisrc_softstate_t *softs)
{
int ret = PQI_STATUS_SUCCESS;
bmic_ident_ctrl_t *identify_ctrl;
DBG_FUNC("IN\n");
identify_ctrl = os_mem_alloc(softs, sizeof(*identify_ctrl));
if (!identify_ctrl) {
DBG_ERR("failed to allocate memory for identify_ctrl\n");
return PQI_STATUS_FAILURE;
}
memset(identify_ctrl, 0, sizeof(*identify_ctrl));
ret = pqisrc_identify_ctrl(softs, identify_ctrl);
if (ret)
goto out;
softs->fw_build_number = identify_ctrl->fw_build_number;
memcpy(softs->fw_version, identify_ctrl->fw_version,
sizeof(identify_ctrl->fw_version));
softs->fw_version[sizeof(identify_ctrl->fw_version)] = '\0';
snprintf(softs->fw_version +
strlen(softs->fw_version),
sizeof(softs->fw_version),
"-%u", identify_ctrl->fw_build_number);
out:
os_mem_free(softs, (char *)identify_ctrl, sizeof(*identify_ctrl));
DBG_INIT("Firmware version: %s Firmware build number: %d\n", softs->fw_version, softs->fw_build_number);
DBG_FUNC("OUT\n");
return ret;
}
/* BMIC command to determine scsi device identify params */
static int pqisrc_identify_physical_disk(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device,
bmic_ident_physdev_t *buff,
int buf_len)
{
int ret = PQI_STATUS_SUCCESS;
uint16_t bmic_device_index;
pqisrc_raid_req_t request;
DBG_FUNC("IN\n");
memset(&request, 0, sizeof(request));
bmic_device_index = BMIC_GET_DRIVE_NUMBER(device->scsi3addr);
request.cdb[2] = (uint8_t)bmic_device_index;
request.cdb[9] = (uint8_t)(bmic_device_index >> 8);
ret = pqisrc_build_send_raid_request(softs, &request, buff, buf_len,
BMIC_IDENTIFY_PHYSICAL_DEVICE, 0, (uint8_t *)RAID_CTLR_LUNID, NULL);
DBG_FUNC("OUT\n");
return ret;
}
/*
* Function used to get the scsi device information using one of BMIC
* BMIC_IDENTIFY_PHYSICAL_DEVICE
*/
static void pqisrc_get_physical_device_info(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device,
bmic_ident_physdev_t *id_phys)
{
int ret = PQI_STATUS_SUCCESS;
DBG_FUNC("IN\n");
memset(id_phys, 0, sizeof(*id_phys));
ret= pqisrc_identify_physical_disk(softs, device,
id_phys, sizeof(*id_phys));
if (ret) {
device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH;
return;
}
device->queue_depth =
LE_16(id_phys->current_queue_depth_limit);
device->device_type = id_phys->device_type;
device->active_path_index = id_phys->active_path_number;
device->path_map = id_phys->redundant_path_present_map;
memcpy(&device->box,
&id_phys->alternate_paths_phys_box_on_port,
sizeof(device->box));
memcpy(&device->phys_connector,
&id_phys->alternate_paths_phys_connector,
sizeof(device->phys_connector));
device->bay = id_phys->phys_bay_in_box;
DBG_DISC("BMIC DEV_TYPE: %x QUEUE DEPTH: 0x%x \n", device->device_type, device->queue_depth);
DBG_FUNC("OUT\n");
}
/* Function used to find the entry of the device in a list */
static device_status_t pqisrc_scsi_find_entry(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device_to_find,
pqi_scsi_dev_t **same_device)
{
pqi_scsi_dev_t *device;
int i,j;
DBG_FUNC("IN\n");
for(i = 0; i < PQI_MAX_DEVICES; i++) {
for(j = 0; j < PQI_MAX_MULTILUN; j++) {
if(softs->device_list[i][j] == NULL)
continue;
device = softs->device_list[i][j];
if (pqisrc_scsi3addr_equal(device_to_find->scsi3addr,
device->scsi3addr)) {
*same_device = device;
if (pqisrc_device_equal(device_to_find, device)) {
if (device_to_find->volume_offline)
return DEVICE_CHANGED;
return DEVICE_UNCHANGED;
}
return DEVICE_CHANGED;
}
}
}
DBG_FUNC("OUT\n");
return DEVICE_NOT_FOUND;
}
/* Update the newly added devices as existed device */
static void pqisrc_exist_device_update(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device_exist,
pqi_scsi_dev_t *new_device)
{
DBG_FUNC("IN\n");
device_exist->expose_device = new_device->expose_device;
memcpy(device_exist->vendor, new_device->vendor,
sizeof(device_exist->vendor));
memcpy(device_exist->model, new_device->model,
sizeof(device_exist->model));
device_exist->is_physical_device = new_device->is_physical_device;
device_exist->is_external_raid_device =
new_device->is_external_raid_device;
device_exist->sas_address = new_device->sas_address;
device_exist->raid_level = new_device->raid_level;
device_exist->queue_depth = new_device->queue_depth;
device_exist->ioaccel_handle = new_device->ioaccel_handle;
device_exist->volume_status = new_device->volume_status;
device_exist->active_path_index = new_device->active_path_index;
device_exist->path_map = new_device->path_map;
device_exist->bay = new_device->bay;
memcpy(device_exist->box, new_device->box,
sizeof(device_exist->box));
memcpy(device_exist->phys_connector, new_device->phys_connector,
sizeof(device_exist->phys_connector));
device_exist->offload_config = new_device->offload_config;
device_exist->offload_enabled = false;
device_exist->offload_enabled_pending =
new_device->offload_enabled_pending;
device_exist->offload_to_mirror = 0;
if (device_exist->raid_map)
os_mem_free(softs,
(char *)device_exist->raid_map,
sizeof(*device_exist->raid_map));
device_exist->raid_map = new_device->raid_map;
/* To prevent this from being freed later. */
new_device->raid_map = NULL;
DBG_FUNC("OUT\n");
}
/* Validate the ioaccel_handle for a newly added device */
static pqi_scsi_dev_t *pqisrc_identify_device_via_ioaccel(
pqisrc_softstate_t *softs, uint32_t ioaccel_handle)
{
pqi_scsi_dev_t *device;
int i,j;
DBG_FUNC("IN\n");
for(i = 0; i < PQI_MAX_DEVICES; i++) {
for(j = 0; j < PQI_MAX_MULTILUN; j++) {
if(softs->device_list[i][j] == NULL)
continue;
device = softs->device_list[i][j];
if (device->devtype != DISK_DEVICE)
continue;
if (pqisrc_is_logical_device(device))
continue;
if (device->ioaccel_handle == ioaccel_handle)
return device;
}
}
DBG_FUNC("OUT\n");
return NULL;
}
/* Get the scsi device queue depth */
static void pqisrc_update_log_dev_qdepth(pqisrc_softstate_t *softs)
{
unsigned i;
unsigned phys_dev_num;
unsigned num_raidmap_entries;
unsigned queue_depth;
pqisrc_raid_map_t *raid_map;
pqi_scsi_dev_t *device;
raidmap_data_t *dev_data;
pqi_scsi_dev_t *phys_disk;
unsigned j;
unsigned k;
DBG_FUNC("IN\n");
for(i = 0; i < PQI_MAX_DEVICES; i++) {
for(j = 0; j < PQI_MAX_MULTILUN; j++) {
if(softs->device_list[i][j] == NULL)
continue;
device = softs->device_list[i][j];
if (device->devtype != DISK_DEVICE)
continue;
if (!pqisrc_is_logical_device(device))
continue;
if (pqisrc_is_external_raid_device(device))
continue;
device->queue_depth = PQI_LOGICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH;
raid_map = device->raid_map;
if (!raid_map)
return;
dev_data = raid_map->dev_data;
phys_dev_num = LE_16(raid_map->layout_map_count) *
(LE_16(raid_map->data_disks_per_row) +
LE_16(raid_map->metadata_disks_per_row));
num_raidmap_entries = phys_dev_num *
LE_16(raid_map->row_cnt);
queue_depth = 0;
for (k = 0; k < num_raidmap_entries; k++) {
phys_disk = pqisrc_identify_device_via_ioaccel(softs,
dev_data[k].ioaccel_handle);
if (!phys_disk) {
DBG_WARN(
"Failed to find physical disk handle for logical drive %016llx\n",
(unsigned long long)BE_64(device->scsi3addr[0]));
device->offload_enabled = false;
device->offload_enabled_pending = false;
if (raid_map)
os_mem_free(softs, (char *)raid_map, sizeof(*raid_map));
device->raid_map = NULL;
return;
}
queue_depth += phys_disk->queue_depth;
}
device->queue_depth = queue_depth;
} /* end inner loop */
}/* end outer loop */
DBG_FUNC("OUT\n");
}
/* Function used to add a scsi device to OS scsi subsystem */
static int pqisrc_add_device(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device)
{
DBG_FUNC("IN\n");
DBG_WARN("vendor: %s model: %s bus:%d target:%d lun:%d is_physical_device:0x%x expose_device:0x%x volume_offline 0x%x volume_status 0x%x \n",
device->vendor, device->model, device->bus, device->target, device->lun, device->is_physical_device, device->expose_device, device->volume_offline, device->volume_status);
device->invalid = false;
if(device->expose_device) {
/* TBD: Call OS upper layer function to add the device entry */
os_add_device(softs,device);
}
DBG_FUNC("OUT\n");
return PQI_STATUS_SUCCESS;
}
/* Function used to remove a scsi device from OS scsi subsystem */
void pqisrc_remove_device(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device)
{
DBG_FUNC("IN\n");
DBG_DISC("vendor: %s model: %s bus:%d target:%d lun:%d is_physical_device:0x%x expose_device:0x%x volume_offline 0x%x volume_status 0x%x \n",
device->vendor, device->model, device->bus, device->target, device->lun, device->is_physical_device, device->expose_device, device->volume_offline, device->volume_status);
/* TBD: Call OS upper layer function to remove the device entry */
device->invalid = true;
os_remove_device(softs,device);
DBG_FUNC("OUT\n");
}
/*
* When exposing new device to OS fails then adjst list according to the
* mid scsi list
*/
static void pqisrc_adjust_list(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device)
{
DBG_FUNC("IN\n");
if (!device) {
DBG_ERR("softs = %p: device is NULL !!!\n", softs);
return;
}
OS_ACQUIRE_SPINLOCK(&softs->devlist_lock);
softs->device_list[device->target][device->lun] = NULL;
OS_RELEASE_SPINLOCK(&softs->devlist_lock);
pqisrc_device_mem_free(softs, device);
DBG_FUNC("OUT\n");
}
/* Debug routine used to display the RAID volume status of the device */
static void pqisrc_display_volume_status(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *device)
{
char *status;
DBG_FUNC("IN\n");
switch (device->volume_status) {
case SA_LV_OK:
status = "Volume is online.";
break;
case SA_LV_UNDERGOING_ERASE:
status = "Volume is undergoing background erase process.";
break;
case SA_LV_NOT_AVAILABLE:
status = "Volume is waiting for transforming volume.";
break;
case SA_LV_UNDERGOING_RPI:
status = "Volume is undergoing rapid parity initialization process.";
break;
case SA_LV_PENDING_RPI:
status = "Volume is queued for rapid parity initialization process.";
break;
case SA_LV_ENCRYPTED_NO_KEY:
status = "Volume is encrypted and cannot be accessed because key is not present.";
break;
case SA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER:
status = "Volume is not encrypted and cannot be accessed because controller is in encryption-only mode.";
break;
case SA_LV_UNDERGOING_ENCRYPTION:
status = "Volume is undergoing encryption process.";
break;
case SA_LV_UNDERGOING_ENCRYPTION_REKEYING:
status = "Volume is undergoing encryption re-keying process.";
break;
case SA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER:
status = "Volume is encrypted and cannot be accessed because controller does not have encryption enabled.";
break;
case SA_LV_PENDING_ENCRYPTION:
status = "Volume is pending migration to encrypted state, but process has not started.";
break;
case SA_LV_PENDING_ENCRYPTION_REKEYING:
status = "Volume is encrypted and is pending encryption rekeying.";
break;
case SA_LV_STATUS_VPD_UNSUPPORTED:
status = "Volume status is not available through vital product data pages.";
break;
default:
status = "Volume is in an unknown state.";
break;
}
DBG_DISC("scsi BTL %d:%d:%d %s\n",
device->bus, device->target, device->lun, status);
DBG_FUNC("OUT\n");
}
void pqisrc_device_mem_free(pqisrc_softstate_t *softs, pqi_scsi_dev_t *device)
{
DBG_FUNC("IN\n");
if (!device)
return;
if (device->raid_map) {
os_mem_free(softs, (char *)device->raid_map, sizeof(pqisrc_raid_map_t));
}
os_mem_free(softs, (char *)device,sizeof(*device));
DBG_FUNC("OUT\n");
}
/* OS should call this function to free the scsi device */
void pqisrc_free_device(pqisrc_softstate_t * softs,pqi_scsi_dev_t *device)
{
OS_ACQUIRE_SPINLOCK(&softs->devlist_lock);
if (!pqisrc_is_logical_device(device)) {
pqisrc_free_tid(softs,device->target);
}
pqisrc_device_mem_free(softs, device);
OS_RELEASE_SPINLOCK(&softs->devlist_lock);
}
/* Update the newly added devices to the device list */
static void pqisrc_update_device_list(pqisrc_softstate_t *softs,
pqi_scsi_dev_t *new_device_list[], int num_new_devices)
{
int ret;
int i;
device_status_t dev_status;
pqi_scsi_dev_t *device;
pqi_scsi_dev_t *same_device;
pqi_scsi_dev_t **added = NULL;
pqi_scsi_dev_t **removed = NULL;
int nadded = 0, nremoved = 0;
int j;
int tid = 0;
DBG_FUNC("IN\n");
added = os_mem_alloc(softs, sizeof(*added) * PQI_MAX_DEVICES);
removed = os_mem_alloc(softs, sizeof(*removed) * PQI_MAX_DEVICES);
if (!added || !removed) {
DBG_WARN("Out of memory \n");
goto free_and_out;
}
OS_ACQUIRE_SPINLOCK(&softs->devlist_lock);
for(i = 0; i < PQI_MAX_DEVICES; i++) {
for(j = 0; j < PQI_MAX_MULTILUN; j++) {
if(softs->device_list[i][j] == NULL)
continue;
device = softs->device_list[i][j];
device->device_gone = true;
}
}
DBG_IO("Device list used an array\n");
for (i = 0; i < num_new_devices; i++) {
device = new_device_list[i];
dev_status = pqisrc_scsi_find_entry(softs, device,
&same_device);
switch (dev_status) {
case DEVICE_UNCHANGED:
/* New Device present in existing device list */
device->new_device = false;
same_device->device_gone = false;
pqisrc_exist_device_update(softs, same_device, device);
break;
case DEVICE_NOT_FOUND:
/* Device not found in existing list */
device->new_device = true;
break;
case DEVICE_CHANGED:
/* Actual device gone need to add device to list*/
device->new_device = true;
break;
default:
break;
}
}
/* Process all devices that have gone away. */
for(i = 0, nremoved = 0; i < PQI_MAX_DEVICES; i++) {
for(j = 0; j < PQI_MAX_MULTILUN; j++) {
if(softs->device_list[i][j] == NULL)
continue;
device = softs->device_list[i][j];
if (device->device_gone) {
softs->device_list[device->target][device->lun] = NULL;
removed[nremoved] = device;
nremoved++;
}
}
}
/* Process all new devices. */
for (i = 0, nadded = 0; i < num_new_devices; i++) {
device = new_device_list[i];
if (!device->new_device)
continue;
if (device->volume_offline)
continue;
/* physical device */
if (!pqisrc_is_logical_device(device)) {
tid = pqisrc_alloc_tid(softs);
if(INVALID_ELEM != tid)
pqisrc_set_btl(device, PQI_PHYSICAL_DEVICE_BUS, tid, 0);
}
softs->device_list[device->target][device->lun] = device;
DBG_DISC("Added device %p at B : %d T : %d L : %d\n",device,
device->bus,device->target,device->lun);
/* To prevent this entry from being freed later. */
new_device_list[i] = NULL;
added[nadded] = device;
nadded++;
}
pqisrc_update_log_dev_qdepth(softs);
for(i = 0; i < PQI_MAX_DEVICES; i++) {
for(j = 0; j < PQI_MAX_MULTILUN; j++) {
if(softs->device_list[i][j] == NULL)
continue;
device = softs->device_list[i][j];
device->offload_enabled = device->offload_enabled_pending;
}
}
OS_RELEASE_SPINLOCK(&softs->devlist_lock);
for(i = 0; i < nremoved; i++) {
device = removed[i];
if (device == NULL)
continue;
pqisrc_remove_device(softs, device);
pqisrc_display_device_info(softs, "removed", device);
}
for(i = 0; i < PQI_MAX_DEVICES; i++) {
for(j = 0; j < PQI_MAX_MULTILUN; j++) {
if(softs->device_list[i][j] == NULL)
continue;
device = softs->device_list[i][j];
/*
* Notify the OS upper layer if the queue depth of any existing device has
* changed.
*/
if (device->queue_depth !=
device->advertised_queue_depth) {
device->advertised_queue_depth = device->queue_depth;
/* TBD: Call OS upper layer function to change device Q depth */
}
}
}
for(i = 0; i < nadded; i++) {
device = added[i];
if (device->expose_device) {
ret = pqisrc_add_device(softs, device);
if (ret) {
DBG_WARN("scsi %d:%d:%d addition failed, device not added\n",
device->bus, device->target,
device->lun);
pqisrc_adjust_list(softs, device);
continue;
}
}
pqisrc_display_device_info(softs, "added", device);
}
/* Process all volumes that are offline. */
for (i = 0; i < num_new_devices; i++) {
device = new_device_list[i];
if (!device)
continue;
if (!device->new_device)
continue;
if (device->volume_offline) {
pqisrc_display_volume_status(softs, device);
pqisrc_display_device_info(softs, "offline", device);
}
}
free_and_out:
if (added)
os_mem_free(softs, (char *)added,
sizeof(*added) * PQI_MAX_DEVICES);
if (removed)
os_mem_free(softs, (char *)removed,
sizeof(*removed) * PQI_MAX_DEVICES);
DBG_FUNC("OUT\n");
}
/*
* Let the Adapter know about driver version using one of BMIC
* BMIC_WRITE_HOST_WELLNESS
*/
int pqisrc_write_driver_version_to_host_wellness(pqisrc_softstate_t *softs)
{
int rval = PQI_STATUS_SUCCESS;
struct bmic_host_wellness_driver_version *host_wellness_driver_ver;
size_t data_length;
pqisrc_raid_req_t request;
DBG_FUNC("IN\n");
memset(&request, 0, sizeof(request));
data_length = sizeof(*host_wellness_driver_ver);
host_wellness_driver_ver = os_mem_alloc(softs, data_length);
if (!host_wellness_driver_ver) {
DBG_ERR("failed to allocate memory for host wellness driver_version\n");
return PQI_STATUS_FAILURE;
}
host_wellness_driver_ver->start_tag[0] = '<';
host_wellness_driver_ver->start_tag[1] = 'H';
host_wellness_driver_ver->start_tag[2] = 'W';
host_wellness_driver_ver->start_tag[3] = '>';
host_wellness_driver_ver->driver_version_tag[0] = 'D';
host_wellness_driver_ver->driver_version_tag[1] = 'V';
host_wellness_driver_ver->driver_version_length = LE_16(sizeof(host_wellness_driver_ver->driver_version));
strncpy(host_wellness_driver_ver->driver_version, softs->os_name,
sizeof(host_wellness_driver_ver->driver_version));
if (strlen(softs->os_name) < sizeof(host_wellness_driver_ver->driver_version) ) {
strncpy(host_wellness_driver_ver->driver_version + strlen(softs->os_name), PQISRC_DRIVER_VERSION,
sizeof(host_wellness_driver_ver->driver_version) - strlen(softs->os_name));
} else {
DBG_DISC("OS name length(%lu) is longer than buffer of driver_version\n",
strlen(softs->os_name));
}
host_wellness_driver_ver->driver_version[sizeof(host_wellness_driver_ver->driver_version) - 1] = '\0';
host_wellness_driver_ver->end_tag[0] = 'Z';
host_wellness_driver_ver->end_tag[1] = 'Z';
rval = pqisrc_build_send_raid_request(softs, &request, host_wellness_driver_ver,data_length,
BMIC_WRITE_HOST_WELLNESS, 0, (uint8_t *)RAID_CTLR_LUNID, NULL);
os_mem_free(softs, (char *)host_wellness_driver_ver, data_length);
DBG_FUNC("OUT");
return rval;
}
/*
* Write current RTC time from host to the adapter using
* BMIC_WRITE_HOST_WELLNESS
*/
int pqisrc_write_current_time_to_host_wellness(pqisrc_softstate_t *softs)
{
int rval = PQI_STATUS_SUCCESS;
struct bmic_host_wellness_time *host_wellness_time;
size_t data_length;
pqisrc_raid_req_t request;
DBG_FUNC("IN\n");
memset(&request, 0, sizeof(request));
data_length = sizeof(*host_wellness_time);
host_wellness_time = os_mem_alloc(softs, data_length);
if (!host_wellness_time) {
DBG_ERR("failed to allocate memory for host wellness time structure\n");
return PQI_STATUS_FAILURE;
}
host_wellness_time->start_tag[0] = '<';
host_wellness_time->start_tag[1] = 'H';
host_wellness_time->start_tag[2] = 'W';
host_wellness_time->start_tag[3] = '>';
host_wellness_time->time_tag[0] = 'T';
host_wellness_time->time_tag[1] = 'D';
host_wellness_time->time_length = LE_16(offsetof(struct bmic_host_wellness_time, time_length) -
offsetof(struct bmic_host_wellness_time, century));
os_get_time(host_wellness_time);
host_wellness_time->dont_write_tag[0] = 'D';
host_wellness_time->dont_write_tag[1] = 'W';
host_wellness_time->end_tag[0] = 'Z';
host_wellness_time->end_tag[1] = 'Z';
rval = pqisrc_build_send_raid_request(softs, &request, host_wellness_time,data_length,
BMIC_WRITE_HOST_WELLNESS, 0, (uint8_t *)RAID_CTLR_LUNID, NULL);
os_mem_free(softs, (char *)host_wellness_time, data_length);
DBG_FUNC("OUT");
return rval;
}
/*
* Function used to perform a rescan of scsi devices
* for any config change events
*/
int pqisrc_scan_devices(pqisrc_softstate_t *softs)
{
boolean_t is_physical_device;
int ret = PQI_STATUS_FAILURE;
int i;
int new_dev_cnt;
int phy_log_dev_cnt;
uint8_t *scsi3addr;
uint32_t physical_cnt;
uint32_t logical_cnt;
uint32_t ndev_allocated = 0;
size_t phys_data_length, log_data_length;
reportlun_data_ext_t *physical_dev_list = NULL;
reportlun_data_ext_t *logical_dev_list = NULL;
reportlun_ext_entry_t *lun_ext_entry = NULL;
bmic_ident_physdev_t *bmic_phy_info = NULL;
pqi_scsi_dev_t **new_device_list = NULL;
pqi_scsi_dev_t *device = NULL;
DBG_FUNC("IN\n");
ret = pqisrc_get_phys_log_device_list(softs, &physical_dev_list, &logical_dev_list,
&phys_data_length, &log_data_length);
if (ret)
goto err_out;
physical_cnt = BE_32(physical_dev_list->header.list_length)
/ sizeof(physical_dev_list->lun_entries[0]);
logical_cnt = BE_32(logical_dev_list->header.list_length)
/ sizeof(logical_dev_list->lun_entries[0]);
DBG_DISC("physical_cnt %d logical_cnt %d\n", physical_cnt, logical_cnt);
if (physical_cnt) {
bmic_phy_info = os_mem_alloc(softs, sizeof(*bmic_phy_info));
if (bmic_phy_info == NULL) {
ret = PQI_STATUS_FAILURE;
DBG_ERR("failed to allocate memory for BMIC ID PHYS Device : %d\n", ret);
goto err_out;
}
}
phy_log_dev_cnt = physical_cnt + logical_cnt;
new_device_list = os_mem_alloc(softs,
sizeof(*new_device_list) * phy_log_dev_cnt);
if (new_device_list == NULL) {
ret = PQI_STATUS_FAILURE;
DBG_ERR("failed to allocate memory for device list : %d\n", ret);
goto err_out;
}
for (i = 0; i < phy_log_dev_cnt; i++) {
new_device_list[i] = os_mem_alloc(softs,
sizeof(*new_device_list[i]));
if (new_device_list[i] == NULL) {
ret = PQI_STATUS_FAILURE;
DBG_ERR("failed to allocate memory for device list : %d\n", ret);
ndev_allocated = i;
goto err_out;
}
}
ndev_allocated = phy_log_dev_cnt;
new_dev_cnt = 0;
for (i = 0; i < phy_log_dev_cnt; i++) {
if (i < physical_cnt) {
is_physical_device = true;
lun_ext_entry = &physical_dev_list->lun_entries[i];
} else {
is_physical_device = false;
lun_ext_entry =
&logical_dev_list->lun_entries[i - physical_cnt];
}
scsi3addr = lun_ext_entry->lunid;
/* Save the target sas adderess for external raid device */
if(lun_ext_entry->device_type == CONTROLLER_DEVICE) {
int target = lun_ext_entry->lunid[3] & 0x3f;
softs->target_sas_addr[target] = BE_64(lun_ext_entry->wwid);
}
/* Skip masked physical non-disk devices. */
if (MASKED_DEVICE(scsi3addr) && is_physical_device
&& (lun_ext_entry->ioaccel_handle == 0))
continue;
device = new_device_list[new_dev_cnt];
memset(device, 0, sizeof(*device));
memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr));
device->wwid = lun_ext_entry->wwid;
device->is_physical_device = is_physical_device;
if (!is_physical_device)
device->is_external_raid_device =
pqisrc_is_external_raid_addr(scsi3addr);
/* Get device type, vendor, model, device ID. */
ret = pqisrc_get_dev_data(softs, device);
if (ret) {
DBG_WARN("Inquiry failed, skipping device %016llx\n",
(unsigned long long)BE_64(device->scsi3addr[0]));
DBG_DISC("INQUIRY FAILED \n");
continue;
}
pqisrc_assign_btl(device);
/*
* Expose all devices except for physical devices that
* are masked.
*/
if (device->is_physical_device &&
MASKED_DEVICE(scsi3addr))
device->expose_device = false;
else
device->expose_device = true;
if (device->is_physical_device &&
(lun_ext_entry->device_flags &
REPORT_LUN_DEV_FLAG_AIO_ENABLED) &&
lun_ext_entry->ioaccel_handle) {
device->aio_enabled = true;
}
switch (device->devtype) {
case ROM_DEVICE:
/*
* We don't *really* support actual CD-ROM devices,
* but we do support the HP "One Button Disaster
* Recovery" tape drive which temporarily pretends to
* be a CD-ROM drive.
*/
if (device->is_obdr_device)
new_dev_cnt++;
break;
case DISK_DEVICE:
case ZBC_DEVICE:
if (device->is_physical_device) {
device->ioaccel_handle =
lun_ext_entry->ioaccel_handle;
device->sas_address = BE_64(lun_ext_entry->wwid);
pqisrc_get_physical_device_info(softs, device,
bmic_phy_info);
}
new_dev_cnt++;
break;
case ENCLOSURE_DEVICE:
if (device->is_physical_device) {
device->sas_address = BE_64(lun_ext_entry->wwid);
}
new_dev_cnt++;
break;
case TAPE_DEVICE:
case MEDIUM_CHANGER_DEVICE:
new_dev_cnt++;
break;
case RAID_DEVICE:
/*
* Only present the HBA controller itself as a RAID
* controller. If it's a RAID controller other than
* the HBA itself (an external RAID controller, MSA500
* or similar), don't present it.
*/
if (pqisrc_is_hba_lunid(scsi3addr))
new_dev_cnt++;
break;
case SES_DEVICE:
case CONTROLLER_DEVICE:
break;
}
}
DBG_DISC("new_dev_cnt %d\n", new_dev_cnt);
pqisrc_update_device_list(softs, new_device_list, new_dev_cnt);
err_out:
if (new_device_list) {
for (i = 0; i < ndev_allocated; i++) {
if (new_device_list[i]) {
if(new_device_list[i]->raid_map)
os_mem_free(softs, (char *)new_device_list[i]->raid_map,
sizeof(pqisrc_raid_map_t));
os_mem_free(softs, (char*)new_device_list[i],
sizeof(*new_device_list[i]));
}
}
os_mem_free(softs, (char *)new_device_list,
sizeof(*new_device_list) * ndev_allocated);
}
if(physical_dev_list)
os_mem_free(softs, (char *)physical_dev_list, phys_data_length);
if(logical_dev_list)
os_mem_free(softs, (char *)logical_dev_list, log_data_length);
if (bmic_phy_info)
os_mem_free(softs, (char *)bmic_phy_info, sizeof(*bmic_phy_info));
DBG_FUNC("OUT \n");
return ret;
}
/*
* Clean up memory allocated for devices.
*/
void pqisrc_cleanup_devices(pqisrc_softstate_t *softs)
{
int i = 0,j = 0;
pqi_scsi_dev_t *dvp = NULL;
DBG_FUNC("IN\n");
for(i = 0; i < PQI_MAX_DEVICES; i++) {
for(j = 0; j < PQI_MAX_MULTILUN; j++) {
if (softs->device_list[i][j] == NULL)
continue;
dvp = softs->device_list[i][j];
pqisrc_device_mem_free(softs, dvp);
}
}
DBG_FUNC("OUT\n");
}
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