diff options
Diffstat (limited to 'drivers/scsi/pm8001/pm8001_ctl.c')
| -rw-r--r-- | drivers/scsi/pm8001/pm8001_ctl.c | 573 |
1 files changed, 573 insertions, 0 deletions
diff --git a/drivers/scsi/pm8001/pm8001_ctl.c b/drivers/scsi/pm8001/pm8001_ctl.c new file mode 100644 index 000000000000..14b13acae6dd --- /dev/null +++ b/drivers/scsi/pm8001/pm8001_ctl.c @@ -0,0 +1,573 @@ +/* + * PMC-Sierra SPC 8001 SAS/SATA based host adapters driver + * + * Copyright (c) 2008-2009 USI Co., Ltd. + * 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, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * 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 MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES. + * + */ +#include <linux/firmware.h> +#include "pm8001_sas.h" +#include "pm8001_ctl.h" + +/* scsi host attributes */ + +/** + * pm8001_ctl_mpi_interface_rev_show - MPI interface revision number + * @cdev: pointer to embedded class device + * @buf: the buffer returned + * + * A sysfs 'read-only' shost attribute. + */ +static ssize_t pm8001_ctl_mpi_interface_rev_show(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + + return snprintf(buf, PAGE_SIZE, "%d\n", + pm8001_ha->main_cfg_tbl.interface_rev); +} +static +DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL); + +/** + * pm8001_ctl_fw_version_show - firmware version + * @cdev: pointer to embedded class device + * @buf: the buffer returned + * + * A sysfs 'read-only' shost attribute. + */ +static ssize_t pm8001_ctl_fw_version_show(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + + return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", + (u8)(pm8001_ha->main_cfg_tbl.firmware_rev >> 24), + (u8)(pm8001_ha->main_cfg_tbl.firmware_rev >> 16), + (u8)(pm8001_ha->main_cfg_tbl.firmware_rev >> 8), + (u8)(pm8001_ha->main_cfg_tbl.firmware_rev)); +} +static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL); +/** + * pm8001_ctl_max_out_io_show - max outstanding io supported + * @cdev: pointer to embedded class device + * @buf: the buffer returned + * + * A sysfs 'read-only' shost attribute. + */ +static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + + return snprintf(buf, PAGE_SIZE, "%d\n", + pm8001_ha->main_cfg_tbl.max_out_io); +} +static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL); +/** + * pm8001_ctl_max_devices_show - max devices support + * @cdev: pointer to embedded class device + * @buf: the buffer returned + * + * A sysfs 'read-only' shost attribute. + */ +static ssize_t pm8001_ctl_max_devices_show(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + + return snprintf(buf, PAGE_SIZE, "%04d\n", + (u16)(pm8001_ha->main_cfg_tbl.max_sgl >> 16)); +} +static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL); +/** + * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no + * hardware limitation + * @cdev: pointer to embedded class device + * @buf: the buffer returned + * + * A sysfs 'read-only' shost attribute. + */ +static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + + return snprintf(buf, PAGE_SIZE, "%04d\n", + pm8001_ha->main_cfg_tbl.max_sgl & 0x0000FFFF); +} +static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL); + +#define SAS_1_0 0x1 +#define SAS_1_1 0x2 +#define SAS_2_0 0x4 + +static ssize_t +show_sas_spec_support_status(unsigned int mode, char *buf) +{ + ssize_t len = 0; + + if (mode & SAS_1_1) + len = sprintf(buf, "%s", "SAS1.1"); + if (mode & SAS_2_0) + len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0"); + len += sprintf(buf + len, "\n"); + + return len; +} + +/** + * pm8001_ctl_sas_spec_support_show - sas spec supported + * @cdev: pointer to embedded class device + * @buf: the buffer returned + * + * A sysfs 'read-only' shost attribute. + */ +static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + unsigned int mode; + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + mode = (pm8001_ha->main_cfg_tbl.ctrl_cap_flag & 0xfe000000)>>25; + return show_sas_spec_support_status(mode, buf); +} +static DEVICE_ATTR(sas_spec_support, S_IRUGO, + pm8001_ctl_sas_spec_support_show, NULL); + +/** + * pm8001_ctl_sas_address_show - sas address + * @cdev: pointer to embedded class device + * @buf: the buffer returned + * + * This is the controller sas address + * + * A sysfs 'read-only' shost attribute. + */ +static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + return snprintf(buf, PAGE_SIZE, "0x%016llx\n", + be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr)); +} +static DEVICE_ATTR(host_sas_address, S_IRUGO, + pm8001_ctl_host_sas_address_show, NULL); + +/** + * pm8001_ctl_logging_level_show - logging level + * @cdev: pointer to embedded class device + * @buf: the buffer returned + * + * A sysfs 'read/write' shost attribute. + */ +static ssize_t pm8001_ctl_logging_level_show(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + + return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level); +} +static ssize_t pm8001_ctl_logging_level_store(struct device *cdev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + int val = 0; + + if (sscanf(buf, "%x", &val) != 1) + return -EINVAL; + + pm8001_ha->logging_level = val; + return strlen(buf); +} + +static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, + pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store); +/** + * pm8001_ctl_aap_log_show - aap1 event log + * @cdev: pointer to embedded class device + * @buf: the buffer returned + * + * A sysfs 'read-only' shost attribute. + */ +static ssize_t pm8001_ctl_aap_log_show(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + int i; +#define AAP1_MEMMAP(r, c) \ + (*(u32 *)((u8*)pm8001_ha->memoryMap.region[AAP1].virt_ptr + (r) * 32 \ + + (c))) + + char *str = buf; + int max = 2; + for (i = 0; i < max; i++) { + str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x" + "0x%08x 0x%08x\n", + AAP1_MEMMAP(i, 0), + AAP1_MEMMAP(i, 4), + AAP1_MEMMAP(i, 8), + AAP1_MEMMAP(i, 12), + AAP1_MEMMAP(i, 16), + AAP1_MEMMAP(i, 20), + AAP1_MEMMAP(i, 24), + AAP1_MEMMAP(i, 28)); + } + + return str - buf; +} +static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL); +/** + * pm8001_ctl_aap_log_show - IOP event log + * @cdev: pointer to embedded class device + * @buf: the buffer returned + * + * A sysfs 'read-only' shost attribute. + */ +static ssize_t pm8001_ctl_iop_log_show(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; +#define IOP_MEMMAP(r, c) \ + (*(u32 *)((u8*)pm8001_ha->memoryMap.region[IOP].virt_ptr + (r) * 32 \ + + (c))) + int i; + char *str = buf; + int max = 2; + for (i = 0; i < max; i++) { + str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x" + "0x%08x 0x%08x\n", + IOP_MEMMAP(i, 0), + IOP_MEMMAP(i, 4), + IOP_MEMMAP(i, 8), + IOP_MEMMAP(i, 12), + IOP_MEMMAP(i, 16), + IOP_MEMMAP(i, 20), + IOP_MEMMAP(i, 24), + IOP_MEMMAP(i, 28)); + } + + return str - buf; +} +static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL); + +#define FLASH_CMD_NONE 0x00 +#define FLASH_CMD_UPDATE 0x01 +#define FLASH_CMD_SET_NVMD 0x02 + +struct flash_command { + u8 command[8]; + int code; +}; + +static struct flash_command flash_command_table[] = +{ + {"set_nvmd", FLASH_CMD_SET_NVMD}, + {"update", FLASH_CMD_UPDATE}, + {"", FLASH_CMD_NONE} /* Last entry should be NULL. */ +}; + +struct error_fw { + char *reason; + int err_code; +}; + +static struct error_fw flash_error_table[] = +{ + {"Failed to open fw image file", FAIL_OPEN_BIOS_FILE}, + {"image header mismatch", FLASH_UPDATE_HDR_ERR}, + {"image offset mismatch", FLASH_UPDATE_OFFSET_ERR}, + {"image CRC Error", FLASH_UPDATE_CRC_ERR}, + {"image length Error.", FLASH_UPDATE_LENGTH_ERR}, + {"Failed to program flash chip", FLASH_UPDATE_HW_ERR}, + {"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED}, + {"Flash update disabled.", FLASH_UPDATE_DISABLED}, + {"Flash in progress", FLASH_IN_PROGRESS}, + {"Image file size Error", FAIL_FILE_SIZE}, + {"Input parameter error", FAIL_PARAMETERS}, + {"Out of memory", FAIL_OUT_MEMORY}, + {"OK", 0} /* Last entry err_code = 0. */ +}; + +static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha) +{ + struct pm8001_ioctl_payload *payload; + DECLARE_COMPLETION_ONSTACK(completion); + u8 *ioctlbuffer = NULL; + u32 length = 0; + u32 ret = 0; + + length = 1024 * 5 + sizeof(*payload) - 1; + ioctlbuffer = kzalloc(length, GFP_KERNEL); + if (!ioctlbuffer) + return -ENOMEM; + if ((pm8001_ha->fw_image->size <= 0) || + (pm8001_ha->fw_image->size > 4096)) { + ret = FAIL_FILE_SIZE; + goto out; + } + payload = (struct pm8001_ioctl_payload *)ioctlbuffer; + memcpy((u8 *)payload->func_specific, (u8 *)pm8001_ha->fw_image->data, + pm8001_ha->fw_image->size); + payload->length = pm8001_ha->fw_image->size; + payload->id = 0; + pm8001_ha->nvmd_completion = &completion; + ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload); + wait_for_completion(&completion); +out: + kfree(ioctlbuffer); + return ret; +} + +static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha) +{ + struct pm8001_ioctl_payload *payload; + DECLARE_COMPLETION_ONSTACK(completion); + u8 *ioctlbuffer = NULL; + u32 length = 0; + struct fw_control_info *fwControl; + u32 loopNumber, loopcount = 0; + u32 sizeRead = 0; + u32 partitionSize, partitionSizeTmp; + u32 ret = 0; + u32 partitionNumber = 0; + struct pm8001_fw_image_header *image_hdr; + + length = 1024 * 16 + sizeof(*payload) - 1; + ioctlbuffer = kzalloc(length, GFP_KERNEL); + image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data; + if (!ioctlbuffer) + return -ENOMEM; + if (pm8001_ha->fw_image->size < 28) { + ret = FAIL_FILE_SIZE; + goto out; + } + + while (sizeRead < pm8001_ha->fw_image->size) { + partitionSizeTmp = + *(u32 *)((u8 *)&image_hdr->image_length + sizeRead); + partitionSize = be32_to_cpu(partitionSizeTmp); + loopcount = (partitionSize + HEADER_LEN)/IOCTL_BUF_SIZE; + if (loopcount % IOCTL_BUF_SIZE) + loopcount++; + if (loopcount == 0) + loopcount++; + for (loopNumber = 0; loopNumber < loopcount; loopNumber++) { + payload = (struct pm8001_ioctl_payload *)ioctlbuffer; + payload->length = 1024*16; + payload->id = 0; + fwControl = + (struct fw_control_info *)payload->func_specific; + fwControl->len = IOCTL_BUF_SIZE; /* IN */ + fwControl->size = partitionSize + HEADER_LEN;/* IN */ + fwControl->retcode = 0;/* OUT */ + fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */ + + /* for the last chunk of data in case file size is not even with + 4k, load only the rest*/ + if (((loopcount-loopNumber) == 1) && + ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) { + fwControl->len = + (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE; + memcpy((u8 *)fwControl->buffer, + (u8 *)pm8001_ha->fw_image->data + sizeRead, + (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE); + sizeRead += + (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE; + } else { + memcpy((u8 *)fwControl->buffer, + (u8 *)pm8001_ha->fw_image->data + sizeRead, + IOCTL_BUF_SIZE); + sizeRead += IOCTL_BUF_SIZE; + } + + pm8001_ha->nvmd_completion = &completion; + ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload); + wait_for_completion(&completion); + if (ret || (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS)) { + ret = fwControl->retcode; + kfree(ioctlbuffer); + ioctlbuffer = NULL; + break; + } + } + if (ret) + break; + partitionNumber++; +} +out: + kfree(ioctlbuffer); + return ret; +} +static ssize_t pm8001_store_update_fw(struct device *cdev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + char *cmd_ptr, *filename_ptr; + int res, i; + int flash_command = FLASH_CMD_NONE; + int err = 0; + if (!capable(CAP_SYS_ADMIN)) + return -EACCES; + + cmd_ptr = kzalloc(count*2, GFP_KERNEL); + + if (!cmd_ptr) { + err = FAIL_OUT_MEMORY; + goto out; + } + + filename_ptr = cmd_ptr + count; + res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr); + if (res != 2) { + err = FAIL_PARAMETERS; + goto out1; + } + + for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) { + if (!memcmp(flash_command_table[i].command, + cmd_ptr, strlen(cmd_ptr))) { + flash_command = flash_command_table[i].code; + break; + } + } + if (flash_command == FLASH_CMD_NONE) { + err = FAIL_PARAMETERS; + goto out1; + } + + if (pm8001_ha->fw_status == FLASH_IN_PROGRESS) { + err = FLASH_IN_PROGRESS; + goto out1; + } + err = request_firmware(&pm8001_ha->fw_image, + filename_ptr, + pm8001_ha->dev); + + if (err) { + PM8001_FAIL_DBG(pm8001_ha, + pm8001_printk("Failed to load firmware image file %s," + " error %d\n", filename_ptr, err)); + err = FAIL_OPEN_BIOS_FILE; + goto out1; + } + + switch (flash_command) { + case FLASH_CMD_UPDATE: + pm8001_ha->fw_status = FLASH_IN_PROGRESS; + err = pm8001_update_flash(pm8001_ha); + break; + case FLASH_CMD_SET_NVMD: + pm8001_ha->fw_status = FLASH_IN_PROGRESS; + err = pm8001_set_nvmd(pm8001_ha); + break; + default: + pm8001_ha->fw_status = FAIL_PARAMETERS; + err = FAIL_PARAMETERS; + break; + } + release_firmware(pm8001_ha->fw_image); +out1: + kfree(cmd_ptr); +out: + pm8001_ha->fw_status = err; + + if (!err) + return count; + else + return -err; +} + +static ssize_t pm8001_show_update_fw(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + int i; + struct Scsi_Host *shost = class_to_shost(cdev); + struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); + struct pm8001_hba_info *pm8001_ha = sha->lldd_ha; + + for (i = 0; flash_error_table[i].err_code != 0; i++) { + if (flash_error_table[i].err_code == pm8001_ha->fw_status) + break; + } + if (pm8001_ha->fw_status != FLASH_IN_PROGRESS) + pm8001_ha->fw_status = FLASH_OK; + + return snprintf(buf, PAGE_SIZE, "status=%x %s\n", + flash_error_table[i].err_code, + flash_error_table[i].reason); +} + +static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUGO, + pm8001_show_update_fw, pm8001_store_update_fw); +struct device_attribute *pm8001_host_attrs[] = { + &dev_attr_interface_rev, + &dev_attr_fw_version, + &dev_attr_update_fw, + &dev_attr_aap_log, + &dev_attr_iop_log, + &dev_attr_max_out_io, + &dev_attr_max_devices, + &dev_attr_max_sg_list, + &dev_attr_sas_spec_support, + &dev_attr_logging_level, + &dev_attr_host_sas_address, + NULL, +}; + |