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mirror_ubuntu-kernels/ubuntu/hio/hio.c

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/*
* Huawei SSD device driver
* Copyright (c) 2016, Huawei Technologies Co., Ltd.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*/
#ifndef LINUX_VERSION_CODE
#include <linux/version.h>
#endif
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16))
#include <linux/config.h>
#endif
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/bio.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/blkdev.h>
#include <linux/sched.h>
#include <linux/fcntl.h>
#include <linux/interrupt.h>
#include <linux/compiler.h>
#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/time.h>
#include <linux/stat.h>
#include <linux/fs.h>
#include <linux/dma-mapping.h>
#include <linux/completion.h>
#include <linux/workqueue.h>
#include <linux/mm.h>
#include <linux/ioctl.h>
#include <linux/hdreg.h> /* HDIO_GETGEO */
#include <linux/list.h>
#include <linux/reboot.h>
#include <linux/kthread.h>
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
#include <linux/seq_file.h>
#endif
#include <asm/uaccess.h>
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
#include <linux/scatterlist.h>
#include <linux/vmalloc.h>
#else
#include <asm/scatterlist.h>
#endif
#include <asm/io.h>
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,17))
#include <linux/devfs_fs_kernel.h>
#endif
/* driver */
#define MODULE_NAME "hio"
#define DRIVER_VERSION "2.1.0.23"
#define DRIVER_VERSION_LEN 16
#define SSD_FW_MIN 0x1
#define SSD_DEV_NAME MODULE_NAME
#define SSD_DEV_NAME_LEN 16
#define SSD_CDEV_NAME "c"SSD_DEV_NAME
#define SSD_SDEV_NAME "s"SSD_DEV_NAME
#define SSD_CMAJOR 0
#define SSD_MAJOR 0
#define SSD_MAJOR_SL 0
#define SSD_MINORS 16
#define SSD_MAX_DEV 702
#define SSD_ALPHABET_NUM 26
#define hio_info(f, arg...) printk(KERN_INFO MODULE_NAME"info: " f , ## arg)
#define hio_note(f, arg...) printk(KERN_NOTICE MODULE_NAME"note: " f , ## arg)
#define hio_warn(f, arg...) printk(KERN_WARNING MODULE_NAME"warn: " f , ## arg)
#define hio_err(f, arg...) printk(KERN_ERR MODULE_NAME"err: " f , ## arg)
/* slave port */
#define SSD_SLAVE_PORT_DEVID 0x000a
/* int mode */
/* 2.6.9 msi affinity bug, should turn msi & msi-x off */
//#define SSD_MSI
#define SSD_ESCAPE_IRQ
//#define SSD_MSIX
#ifndef MODULE
#define SSD_MSIX
#endif
#define SSD_MSIX_VEC 8
#ifdef SSD_MSIX
#undef SSD_MSI
//#undef SSD_ESCAPE_IRQ
#define SSD_MSIX_AFFINITY_FORCE
#endif
#define SSD_TRIM
/* Over temperature protect */
#define SSD_OT_PROTECT
#ifdef SSD_QUEUE_PBIO
#define BIO_SSD_PBIO 20
#endif
/* debug */
//#define SSD_DEBUG_ERR
/* cmd timer */
#define SSD_CMD_TIMEOUT (60*HZ)
/* i2c & smbus */
#define SSD_SPI_TIMEOUT (5*HZ)
#define SSD_I2C_TIMEOUT (5*HZ)
#define SSD_I2C_MAX_DATA (127)
#define SSD_SMBUS_BLOCK_MAX (32)
#define SSD_SMBUS_DATA_MAX (SSD_SMBUS_BLOCK_MAX + 2)
/* wait for init */
#define SSD_INIT_WAIT (1000) //1s
#define SSD_CONTROLLER_WAIT (20*1000/SSD_INIT_WAIT) //20s
#define SSD_INIT_MAX_WAIT (500*1000/SSD_INIT_WAIT) //500s
#define SSD_INIT_MAX_WAIT_V3_2 (1400*1000/SSD_INIT_WAIT) //1400s
#define SSD_RAM_INIT_MAX_WAIT (10*1000/SSD_INIT_WAIT) //10s
#define SSD_CH_INFO_MAX_WAIT (10*1000/SSD_INIT_WAIT) //10s
/* blkdev busy wait */
#define SSD_DEV_BUSY_WAIT 1000 //ms
#define SSD_DEV_BUSY_MAX_WAIT (8*1000/SSD_DEV_BUSY_WAIT) //8s
/* smbus retry */
#define SSD_SMBUS_RETRY_INTERVAL (5) //ms
#define SSD_SMBUS_RETRY_MAX (1000/SSD_SMBUS_RETRY_INTERVAL)
#define SSD_BM_RETRY_MAX 7
/* bm routine interval */
#define SSD_BM_CAP_LEARNING_DELAY (10*60*1000)
/* routine interval */
#define SSD_ROUTINE_INTERVAL (10*1000) //10s
#define SSD_HWMON_ROUTINE_TICK (60*1000/SSD_ROUTINE_INTERVAL)
#define SSD_CAPMON_ROUTINE_TICK ((3600*1000/SSD_ROUTINE_INTERVAL)*24*30)
#define SSD_CAPMON2_ROUTINE_TICK (10*60*1000/SSD_ROUTINE_INTERVAL) //fault recover
/* dma align */
#define SSD_DMA_ALIGN (16)
/* some hw defalut */
#define SSD_LOG_MAX_SZ 4096
#define SSD_NAND_OOB_SZ 1024
#define SSD_NAND_ID_SZ 8
#define SSD_NAND_ID_BUFF_SZ 1024
#define SSD_NAND_MAX_CE 2
#define SSD_BBT_RESERVED 8
#define SSD_ECC_MAX_FLIP (64+1)
#define SSD_RAM_ALIGN 16
#define SSD_RELOAD_FLAG 0x3333CCCC
#define SSD_RELOAD_FW 0xAA5555AA
#define SSD_RESET_NOINIT 0xAA5555AA
#define SSD_RESET 0x55AAAA55
#define SSD_RESET_FULL 0x5A
//#define SSD_RESET_WAIT 1000 //1s
//#define SSD_RESET_MAX_WAIT (200*1000/SSD_RESET_WAIT) //200s
/* reverion 1 */
#define SSD_PROTOCOL_V1 0x0
#define SSD_ROM_SIZE (16*1024*1024)
#define SSD_ROM_BLK_SIZE (256*1024)
#define SSD_ROM_PAGE_SIZE (256)
#define SSD_ROM_NR_BRIDGE_FW 2
#define SSD_ROM_NR_CTRL_FW 2
#define SSD_ROM_BRIDGE_FW_BASE 0
#define SSD_ROM_BRIDGE_FW_SIZE (2*1024*1024)
#define SSD_ROM_CTRL_FW_BASE (SSD_ROM_NR_BRIDGE_FW*SSD_ROM_BRIDGE_FW_SIZE)
#define SSD_ROM_CTRL_FW_SIZE (5*1024*1024)
#define SSD_ROM_LABEL_BASE (SSD_ROM_CTRL_FW_BASE+SSD_ROM_CTRL_FW_SIZE*SSD_ROM_NR_CTRL_FW)
#define SSD_ROM_VP_BASE (SSD_ROM_LABEL_BASE+SSD_ROM_BLK_SIZE)
/* reverion 3 */
#define SSD_PROTOCOL_V3 0x3000000
#define SSD_PROTOCOL_V3_1_1 0x3010001
#define SSD_PROTOCOL_V3_1_3 0x3010003
#define SSD_PROTOCOL_V3_2 0x3020000
#define SSD_PROTOCOL_V3_2_1 0x3020001 /* <4KB improved */
#define SSD_PROTOCOL_V3_2_2 0x3020002 /* ot protect */
#define SSD_PROTOCOL_V3_2_4 0x3020004
#define SSD_PV3_ROM_NR_BM_FW 1
#define SSD_PV3_ROM_BM_FW_SZ (64*1024*8)
#define SSD_ROM_LOG_SZ (64*1024*4)
#define SSD_ROM_NR_SMART_MAX 2
#define SSD_PV3_ROM_NR_SMART SSD_ROM_NR_SMART_MAX
#define SSD_PV3_ROM_SMART_SZ (64*1024)
/* reverion 3.2 */
#define SSD_PV3_2_ROM_LOG_SZ (64*1024*80) /* 5MB */
#define SSD_PV3_2_ROM_SEC_SZ (256*1024) /* 256KB */
/* register */
#define SSD_REQ_FIFO_REG 0x0000
#define SSD_RESP_FIFO_REG 0x0008 //0x0010
#define SSD_RESP_PTR_REG 0x0010 //0x0018
#define SSD_INTR_INTERVAL_REG 0x0018
#define SSD_READY_REG 0x001C
#define SSD_BRIDGE_TEST_REG 0x0020
#define SSD_STRIPE_SIZE_REG 0x0028
#define SSD_CTRL_VER_REG 0x0030 //controller
#define SSD_BRIDGE_VER_REG 0x0034 //bridge
#define SSD_PCB_VER_REG 0x0038
#define SSD_BURN_FLAG_REG 0x0040
#define SSD_BRIDGE_INFO_REG 0x0044
#define SSD_WL_VAL_REG 0x0048 //32-bit
#define SSD_BB_INFO_REG 0x004C
#define SSD_ECC_TEST_REG 0x0050 //test only
#define SSD_ERASE_TEST_REG 0x0058 //test only
#define SSD_WRITE_TEST_REG 0x0060 //test only
#define SSD_RESET_REG 0x0068
#define SSD_RELOAD_FW_REG 0x0070
#define SSD_RESERVED_BLKS_REG 0x0074
#define SSD_VALID_PAGES_REG 0x0078
#define SSD_CH_INFO_REG 0x007C
#define SSD_CTRL_TEST_REG_SZ 0x8
#define SSD_CTRL_TEST_REG0 0x0080
#define SSD_CTRL_TEST_REG1 0x0088
#define SSD_CTRL_TEST_REG2 0x0090
#define SSD_CTRL_TEST_REG3 0x0098
#define SSD_CTRL_TEST_REG4 0x00A0
#define SSD_CTRL_TEST_REG5 0x00A8
#define SSD_CTRL_TEST_REG6 0x00B0
#define SSD_CTRL_TEST_REG7 0x00B8
#define SSD_FLASH_INFO_REG0 0x00C0
#define SSD_FLASH_INFO_REG1 0x00C8
#define SSD_FLASH_INFO_REG2 0x00D0
#define SSD_FLASH_INFO_REG3 0x00D8
#define SSD_FLASH_INFO_REG4 0x00E0
#define SSD_FLASH_INFO_REG5 0x00E8
#define SSD_FLASH_INFO_REG6 0x00F0
#define SSD_FLASH_INFO_REG7 0x00F8
#define SSD_RESP_INFO_REG 0x01B8
#define SSD_NAND_BUFF_BASE 0x01BC //for nand write
#define SSD_CHIP_INFO_REG_SZ 0x10
#define SSD_CHIP_INFO_REG0 0x0100 //128 bit
#define SSD_CHIP_INFO_REG1 0x0110
#define SSD_CHIP_INFO_REG2 0x0120
#define SSD_CHIP_INFO_REG3 0x0130
#define SSD_CHIP_INFO_REG4 0x0140
#define SSD_CHIP_INFO_REG5 0x0150
#define SSD_CHIP_INFO_REG6 0x0160
#define SSD_CHIP_INFO_REG7 0x0170
#define SSD_RAM_INFO_REG 0x01C4
#define SSD_BBT_BASE_REG 0x01C8
#define SSD_ECT_BASE_REG 0x01CC
#define SSD_CLEAR_INTR_REG 0x01F0
#define SSD_INIT_STATE_REG_SZ 0x8
#define SSD_INIT_STATE_REG0 0x0200
#define SSD_INIT_STATE_REG1 0x0208
#define SSD_INIT_STATE_REG2 0x0210
#define SSD_INIT_STATE_REG3 0x0218
#define SSD_INIT_STATE_REG4 0x0220
#define SSD_INIT_STATE_REG5 0x0228
#define SSD_INIT_STATE_REG6 0x0230
#define SSD_INIT_STATE_REG7 0x0238
#define SSD_ROM_INFO_REG 0x0600
#define SSD_ROM_BRIDGE_FW_INFO_REG 0x0604
#define SSD_ROM_CTRL_FW_INFO_REG 0x0608
#define SSD_ROM_VP_INFO_REG 0x060C
#define SSD_LOG_INFO_REG 0x0610
#define SSD_LED_REG 0x0614
#define SSD_MSG_BASE_REG 0x06F8
/*spi reg */
#define SSD_SPI_REG_CMD 0x0180
#define SSD_SPI_REG_CMD_HI 0x0184
#define SSD_SPI_REG_WDATA 0x0188
#define SSD_SPI_REG_ID 0x0190
#define SSD_SPI_REG_STATUS 0x0198
#define SSD_SPI_REG_RDATA 0x01A0
#define SSD_SPI_REG_READY 0x01A8
/* i2c register */
#define SSD_I2C_CTRL_REG 0x06F0
#define SSD_I2C_RDATA_REG 0x06F4
/* temperature reg */
#define SSD_BRIGE_TEMP_REG 0x0618
#define SSD_CTRL_TEMP_REG0 0x0700
#define SSD_CTRL_TEMP_REG1 0x0708
#define SSD_CTRL_TEMP_REG2 0x0710
#define SSD_CTRL_TEMP_REG3 0x0718
#define SSD_CTRL_TEMP_REG4 0x0720
#define SSD_CTRL_TEMP_REG5 0x0728
#define SSD_CTRL_TEMP_REG6 0x0730
#define SSD_CTRL_TEMP_REG7 0x0738
/* reversion 3 reg */
#define SSD_PROTOCOL_VER_REG 0x01B4
#define SSD_FLUSH_TIMEOUT_REG 0x02A4
#define SSD_BM_FAULT_REG 0x0660
#define SSD_PV3_RAM_STATUS_REG_SZ 0x4
#define SSD_PV3_RAM_STATUS_REG0 0x0260
#define SSD_PV3_RAM_STATUS_REG1 0x0264
#define SSD_PV3_RAM_STATUS_REG2 0x0268
#define SSD_PV3_RAM_STATUS_REG3 0x026C
#define SSD_PV3_RAM_STATUS_REG4 0x0270
#define SSD_PV3_RAM_STATUS_REG5 0x0274
#define SSD_PV3_RAM_STATUS_REG6 0x0278
#define SSD_PV3_RAM_STATUS_REG7 0x027C
#define SSD_PV3_CHIP_INFO_REG_SZ 0x40
#define SSD_PV3_CHIP_INFO_REG0 0x0300
#define SSD_PV3_CHIP_INFO_REG1 0x0340
#define SSD_PV3_CHIP_INFO_REG2 0x0380
#define SSD_PV3_CHIP_INFO_REG3 0x03B0
#define SSD_PV3_CHIP_INFO_REG4 0x0400
#define SSD_PV3_CHIP_INFO_REG5 0x0440
#define SSD_PV3_CHIP_INFO_REG6 0x0480
#define SSD_PV3_CHIP_INFO_REG7 0x04B0
#define SSD_PV3_INIT_STATE_REG_SZ 0x20
#define SSD_PV3_INIT_STATE_REG0 0x0500
#define SSD_PV3_INIT_STATE_REG1 0x0520
#define SSD_PV3_INIT_STATE_REG2 0x0540
#define SSD_PV3_INIT_STATE_REG3 0x0560
#define SSD_PV3_INIT_STATE_REG4 0x0580
#define SSD_PV3_INIT_STATE_REG5 0x05A0
#define SSD_PV3_INIT_STATE_REG6 0x05C0
#define SSD_PV3_INIT_STATE_REG7 0x05E0
/* reversion 3.1.1 reg */
#define SSD_FULL_RESET_REG 0x01B0
#define SSD_CTRL_REG_ZONE_SZ 0x800
#define SSD_BB_THRESHOLD_L1_REG 0x2C0
#define SSD_BB_THRESHOLD_L2_REG 0x2C4
#define SSD_BB_ACC_REG_SZ 0x4
#define SSD_BB_ACC_REG0 0x21C0
#define SSD_BB_ACC_REG1 0x29C0
#define SSD_BB_ACC_REG2 0x31C0
#define SSD_EC_THRESHOLD_L1_REG 0x2C8
#define SSD_EC_THRESHOLD_L2_REG 0x2CC
#define SSD_EC_ACC_REG_SZ 0x4
#define SSD_EC_ACC_REG0 0x21E0
#define SSD_EC_ACC_REG1 0x29E0
#define SSD_EC_ACC_REG2 0x31E0
/* reversion 3.1.2 & 3.1.3 reg */
#define SSD_HW_STATUS_REG 0x02AC
#define SSD_PLP_INFO_REG 0x0664
/*reversion 3.2 reg*/
#define SSD_POWER_ON_REG 0x01EC
#define SSD_PCIE_LINKSTATUS_REG 0x01F8
#define SSD_PL_CAP_LEARN_REG 0x01FC
#define SSD_FPGA_1V0_REG0 0x2070
#define SSD_FPGA_1V8_REG0 0x2078
#define SSD_FPGA_1V0_REG1 0x2870
#define SSD_FPGA_1V8_REG1 0x2878
/*reversion 3.2 reg*/
#define SSD_READ_OT_REG0 0x2260
#define SSD_WRITE_OT_REG0 0x2264
#define SSD_READ_OT_REG1 0x2A60
#define SSD_WRITE_OT_REG1 0x2A64
/* function */
#define SSD_FUNC_READ 0x01
#define SSD_FUNC_WRITE 0x02
#define SSD_FUNC_NAND_READ_WOOB 0x03
#define SSD_FUNC_NAND_READ 0x04
#define SSD_FUNC_NAND_WRITE 0x05
#define SSD_FUNC_NAND_ERASE 0x06
#define SSD_FUNC_NAND_READ_ID 0x07
#define SSD_FUNC_READ_LOG 0x08
#define SSD_FUNC_TRIM 0x09
#define SSD_FUNC_RAM_READ 0x10
#define SSD_FUNC_RAM_WRITE 0x11
#define SSD_FUNC_FLUSH 0x12 //cache / bbt
/* spi function */
#define SSD_SPI_CMD_PROGRAM 0x02
#define SSD_SPI_CMD_READ 0x03
#define SSD_SPI_CMD_W_DISABLE 0x04
#define SSD_SPI_CMD_READ_STATUS 0x05
#define SSD_SPI_CMD_W_ENABLE 0x06
#define SSD_SPI_CMD_ERASE 0xd8
#define SSD_SPI_CMD_CLSR 0x30
#define SSD_SPI_CMD_READ_ID 0x9f
/* i2c */
#define SSD_I2C_CTRL_READ 0x00
#define SSD_I2C_CTRL_WRITE 0x01
/* i2c internal register */
#define SSD_I2C_CFG_REG 0x00
#define SSD_I2C_DATA_REG 0x01
#define SSD_I2C_CMD_REG 0x02
#define SSD_I2C_STATUS_REG 0x03
#define SSD_I2C_SADDR_REG 0x04
#define SSD_I2C_LEN_REG 0x05
#define SSD_I2C_RLEN_REG 0x06
#define SSD_I2C_WLEN_REG 0x07
#define SSD_I2C_RESET_REG 0x08 //write for reset
#define SSD_I2C_PRER_REG 0x09
/* hw mon */
/* FPGA volt = ADC_value / 4096 * 3v */
#define SSD_FPGA_1V0_ADC_MIN 1228 // 0.9v
#define SSD_FPGA_1V0_ADC_MAX 1502 // 1.1v
#define SSD_FPGA_1V8_ADC_MIN 2211 // 1.62v
#define SSD_FPGA_1V8_ADC_MAX 2703 // 1.98
/* ADC value */
#define SSD_FPGA_VOLT_MAX(val) (((val) & 0xffff) >> 4)
#define SSD_FPGA_VOLT_MIN(val) (((val >> 16) & 0xffff) >> 4)
#define SSD_FPGA_VOLT_CUR(val) (((val >> 32) & 0xffff) >> 4)
#define SSD_FPGA_VOLT(val) ((val * 3000) >> 12)
#define SSD_VOLT_LOG_DATA(idx, ctrl, volt) (((uint32_t)idx << 24) | ((uint32_t)ctrl << 16) | ((uint32_t)volt))
enum ssd_fpga_volt
{
SSD_FPGA_1V0 = 0,
SSD_FPGA_1V8,
SSD_FPGA_VOLT_NR
};
enum ssd_clock
{
SSD_CLOCK_166M_LOST = 0,
SSD_CLOCK_166M_SKEW,
SSD_CLOCK_156M_LOST,
SSD_CLOCK_156M_SKEW,
SSD_CLOCK_NR
};
/* sensor */
#define SSD_SENSOR_LM75_SADDRESS (0x49 << 1)
#define SSD_SENSOR_LM80_SADDRESS (0x28 << 1)
#define SSD_SENSOR_CONVERT_TEMP(val) ((int)(val >> 8))
#define SSD_INLET_OT_TEMP (55) //55 DegC
#define SSD_INLET_OT_HYST (50) //50 DegC
#define SSD_FLASH_OT_TEMP (70) //70 DegC
#define SSD_FLASH_OT_HYST (65) //65 DegC
enum ssd_sensor
{
SSD_SENSOR_LM80 = 0,
SSD_SENSOR_LM75,
SSD_SENSOR_NR
};
/* lm75 */
enum ssd_lm75_reg
{
SSD_LM75_REG_TEMP = 0,
SSD_LM75_REG_CONF,
SSD_LM75_REG_THYST,
SSD_LM75_REG_TOS
};
/* lm96080 */
#define SSD_LM80_REG_IN_MAX(nr) (0x2a + (nr) * 2)
#define SSD_LM80_REG_IN_MIN(nr) (0x2b + (nr) * 2)
#define SSD_LM80_REG_IN(nr) (0x20 + (nr))
#define SSD_LM80_REG_FAN1 0x28
#define SSD_LM80_REG_FAN2 0x29
#define SSD_LM80_REG_FAN_MIN(nr) (0x3b + (nr))
#define SSD_LM80_REG_TEMP 0x27
#define SSD_LM80_REG_TEMP_HOT_MAX 0x38
#define SSD_LM80_REG_TEMP_HOT_HYST 0x39
#define SSD_LM80_REG_TEMP_OS_MAX 0x3a
#define SSD_LM80_REG_TEMP_OS_HYST 0x3b
#define SSD_LM80_REG_CONFIG 0x00
#define SSD_LM80_REG_ALARM1 0x01
#define SSD_LM80_REG_ALARM2 0x02
#define SSD_LM80_REG_MASK1 0x03
#define SSD_LM80_REG_MASK2 0x04
#define SSD_LM80_REG_FANDIV 0x05
#define SSD_LM80_REG_RES 0x06
#define SSD_LM80_CONVERT_VOLT(val) ((val * 10) >> 8)
#define SSD_LM80_3V3_VOLT(val) ((val)*33/19)
#define SSD_LM80_CONV_INTERVAL (1000)
enum ssd_lm80_in
{
SSD_LM80_IN_CAP = 0,
SSD_LM80_IN_1V2,
SSD_LM80_IN_1V2a,
SSD_LM80_IN_1V5,
SSD_LM80_IN_1V8,
SSD_LM80_IN_FPGA_3V3,
SSD_LM80_IN_3V3,
SSD_LM80_IN_NR
};
struct ssd_lm80_limit
{
uint8_t low;
uint8_t high;
};
/* +/- 5% except cap in*/
static struct ssd_lm80_limit ssd_lm80_limit[SSD_LM80_IN_NR] = {
{171, 217}, /* CAP in: 1710 ~ 2170 */
{114, 126},
{114, 126},
{142, 158},
{171, 189},
{180, 200},
{180, 200},
};
/* temperature sensors */
enum ssd_temp_sensor
{
SSD_TEMP_INLET = 0,
SSD_TEMP_FLASH,
SSD_TEMP_CTRL,
SSD_TEMP_NR
};
#ifdef SSD_OT_PROTECT
#define SSD_OT_DELAY (60) //ms
#define SSD_OT_TEMP (90) //90 DegC
#define SSD_OT_TEMP_HYST (85) //85 DegC
#endif
/* fpga temperature */
//#define CONVERT_TEMP(val) ((float)(val)*503.975f/4096.0f-273.15f)
#define CONVERT_TEMP(val) ((val)*504/4096-273)
#define MAX_TEMP(val) CONVERT_TEMP(((val & 0xffff) >> 4))
#define MIN_TEMP(val) CONVERT_TEMP((((val>>16) & 0xffff) >> 4))
#define CUR_TEMP(val) CONVERT_TEMP((((val>>32) & 0xffff) >> 4))
/* CAP monitor */
#define SSD_PL_CAP_U1 SSD_LM80_REG_IN(SSD_LM80_IN_CAP)
#define SSD_PL_CAP_U2 SSD_LM80_REG_IN(SSD_LM80_IN_1V8)
#define SSD_PL_CAP_LEARN(u1, u2, t) ((t*(u1+u2))/(2*162*(u1-u2)))
#define SSD_PL_CAP_LEARN_WAIT (20) //20ms
#define SSD_PL_CAP_LEARN_MAX_WAIT (1000/SSD_PL_CAP_LEARN_WAIT) //1s
#define SSD_PL_CAP_CHARGE_WAIT (1000)
#define SSD_PL_CAP_CHARGE_MAX_WAIT ((120*1000)/SSD_PL_CAP_CHARGE_WAIT) //120s
#define SSD_PL_CAP_VOLT(val) (val*7)
#define SSD_PL_CAP_VOLT_FULL (13700)
#define SSD_PL_CAP_VOLT_READY (12880)
#define SSD_PL_CAP_THRESHOLD (8900)
#define SSD_PL_CAP_CP_THRESHOLD (5800)
#define SSD_PL_CAP_THRESHOLD_HYST (100)
enum ssd_pl_cap_status
{
SSD_PL_CAP = 0,
SSD_PL_CAP_NR
};
enum ssd_pl_cap_type
{
SSD_PL_CAP_DEFAULT = 0, /* 4 cap */
SSD_PL_CAP_CP /* 3 cap */
};
/* hwmon offset */
#define SSD_HWMON_OFFS_TEMP (0)
#define SSD_HWMON_OFFS_SENSOR (SSD_HWMON_OFFS_TEMP + SSD_TEMP_NR)
#define SSD_HWMON_OFFS_PL_CAP (SSD_HWMON_OFFS_SENSOR + SSD_SENSOR_NR)
#define SSD_HWMON_OFFS_LM80 (SSD_HWMON_OFFS_PL_CAP + SSD_PL_CAP_NR)
#define SSD_HWMON_OFFS_CLOCK (SSD_HWMON_OFFS_LM80 + SSD_LM80_IN_NR)
#define SSD_HWMON_OFFS_FPGA (SSD_HWMON_OFFS_CLOCK + SSD_CLOCK_NR)
#define SSD_HWMON_TEMP(idx) (SSD_HWMON_OFFS_TEMP + idx)
#define SSD_HWMON_SENSOR(idx) (SSD_HWMON_OFFS_SENSOR + idx)
#define SSD_HWMON_PL_CAP(idx) (SSD_HWMON_OFFS_PL_CAP + idx)
#define SSD_HWMON_LM80(idx) (SSD_HWMON_OFFS_LM80 + idx)
#define SSD_HWMON_CLOCK(idx) (SSD_HWMON_OFFS_CLOCK + idx)
#define SSD_HWMON_FPGA(ctrl, idx) (SSD_HWMON_OFFS_FPGA + (ctrl * SSD_FPGA_VOLT_NR) + idx)
/* fifo */
typedef struct sfifo
{
uint32_t in;
uint32_t out;
uint32_t size;
uint32_t esize;
uint32_t mask;
spinlock_t lock;
void *data;
} sfifo_t;
static int sfifo_alloc(struct sfifo *fifo, uint32_t size, uint32_t esize)
{
uint32_t __size = 1;
if (!fifo || size > INT_MAX || esize == 0) {
return -EINVAL;
}
while (__size < size) __size <<= 1;
if (__size < 2) {
return -EINVAL;
}
fifo->data = vmalloc(esize * __size);
if (!fifo->data) {
return -ENOMEM;
}
fifo->in = 0;
fifo->out = 0;
fifo->mask = __size - 1;
fifo->size = __size;
fifo->esize = esize;
spin_lock_init(&fifo->lock);
return 0;
}
static void sfifo_free(struct sfifo *fifo)
{
if (!fifo) {
return;
}
vfree(fifo->data);
fifo->data = NULL;
fifo->in = 0;
fifo->out = 0;
fifo->mask = 0;
fifo->size = 0;
fifo->esize = 0;
}
static int __sfifo_put(struct sfifo *fifo, void *val)
{
if (((fifo->in + 1) & fifo->mask) == fifo->out) {
return -1;
}
memcpy((fifo->data + (fifo->in * fifo->esize)), val, fifo->esize);
fifo->in = (fifo->in + 1) & fifo->mask;
return 0;
}
static int sfifo_put(struct sfifo *fifo, void *val)
{
int ret = 0;
if (!fifo || !val) {
return -EINVAL;
}
if (!in_interrupt()) {
spin_lock_irq(&fifo->lock);
ret = __sfifo_put(fifo, val);
spin_unlock_irq(&fifo->lock);
} else {
spin_lock(&fifo->lock);
ret = __sfifo_put(fifo, val);
spin_unlock(&fifo->lock);
}
return ret;
}
static int __sfifo_get(struct sfifo *fifo, void *val)
{
if (fifo->out == fifo->in) {
return -1;
}
memcpy(val, (fifo->data + (fifo->out * fifo->esize)), fifo->esize);
fifo->out = (fifo->out + 1) & fifo->mask;
return 0;
}
static int sfifo_get(struct sfifo *fifo, void *val)
{
int ret = 0;
if (!fifo || !val) {
return -EINVAL;
}
if (!in_interrupt()) {
spin_lock_irq(&fifo->lock);
ret = __sfifo_get(fifo, val);
spin_unlock_irq(&fifo->lock);
} else {
spin_lock(&fifo->lock);
ret = __sfifo_get(fifo, val);
spin_unlock(&fifo->lock);
}
return ret;
}
/* bio list */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30))
struct ssd_blist {
struct bio *prev;
struct bio *next;
};
static inline void ssd_blist_init(struct ssd_blist *ssd_bl)
{
ssd_bl->prev = NULL;
ssd_bl->next = NULL;
}
static inline struct bio *ssd_blist_get(struct ssd_blist *ssd_bl)
{
struct bio *bio = ssd_bl->prev;
ssd_bl->prev = NULL;
ssd_bl->next = NULL;
return bio;
}
static inline void ssd_blist_add(struct ssd_blist *ssd_bl, struct bio *bio)
{
bio->bi_next = NULL;
if (ssd_bl->next) {
ssd_bl->next->bi_next = bio;
} else {
ssd_bl->prev = bio;
}
ssd_bl->next = bio;
}
#else
#define ssd_blist bio_list
#define ssd_blist_init bio_list_init
#define ssd_blist_get bio_list_get
#define ssd_blist_add bio_list_add
#endif
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,14,0))
#define bio_start(bio) (bio->bi_sector)
#else
#define bio_start(bio) (bio->bi_iter.bi_sector)
#endif
/* mutex */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16))
#define mutex_lock down
#define mutex_unlock up
#define mutex semaphore
#define mutex_init init_MUTEX
#endif
/* i2c */
typedef union ssd_i2c_ctrl {
uint32_t val;
struct {
uint8_t wdata;
uint8_t addr;
uint16_t rw:1;
uint16_t pad:15;
} bits;
}__attribute__((packed)) ssd_i2c_ctrl_t;
typedef union ssd_i2c_data {
uint32_t val;
struct {
uint32_t rdata:8;
uint32_t valid:1;
uint32_t pad:23;
} bits;
}__attribute__((packed)) ssd_i2c_data_t;
/* write mode */
enum ssd_write_mode
{
SSD_WMODE_BUFFER = 0,
SSD_WMODE_BUFFER_EX,
SSD_WMODE_FUA,
/* dummy */
SSD_WMODE_AUTO,
SSD_WMODE_DEFAULT
};
/* reset type */
enum ssd_reset_type
{
SSD_RST_NOINIT = 0,
SSD_RST_NORMAL,
SSD_RST_FULL
};
/* ssd msg */
typedef struct ssd_sg_entry
{
uint64_t block:48;
uint64_t length:16;
uint64_t buf;
}__attribute__((packed))ssd_sg_entry_t;
typedef struct ssd_rw_msg
{
uint8_t tag;
uint8_t flag;
uint8_t nsegs;
uint8_t fun;
uint32_t reserved; //for 64-bit align
struct ssd_sg_entry sge[1]; //base
}__attribute__((packed))ssd_rw_msg_t;
typedef struct ssd_resp_msg
{
uint8_t tag;
uint8_t status:2;
uint8_t bitflip:6;
uint8_t log;
uint8_t fun;
uint32_t reserved;
}__attribute__((packed))ssd_resp_msg_t;
typedef struct ssd_flush_msg
{
uint8_t tag;
uint8_t flag:2; //flash cache 0 or bbt 1
uint8_t flash:6;
uint8_t ctrl_idx;
uint8_t fun;
uint32_t reserved; //align
}__attribute__((packed))ssd_flush_msg_t;
typedef struct ssd_nand_op_msg
{
uint8_t tag;
uint8_t flag;
uint8_t ctrl_idx;
uint8_t fun;
uint32_t reserved; //align
uint16_t page_count;
uint8_t chip_ce;
uint8_t chip_no;
uint32_t page_no;
uint64_t buf;
}__attribute__((packed))ssd_nand_op_msg_t;
typedef struct ssd_ram_op_msg
{
uint8_t tag;
uint8_t flag;
uint8_t ctrl_idx;
uint8_t fun;
uint32_t reserved; //align
uint32_t start;
uint32_t length;
uint64_t buf;
}__attribute__((packed))ssd_ram_op_msg_t;
/* log msg */
typedef struct ssd_log_msg
{
uint8_t tag;
uint8_t flag;
uint8_t ctrl_idx;
uint8_t fun;
uint32_t reserved; //align
uint64_t buf;
}__attribute__((packed))ssd_log_msg_t;
typedef struct ssd_log_op_msg
{
uint8_t tag;
uint8_t flag;
uint8_t ctrl_idx;
uint8_t fun;
uint32_t reserved; //align
uint64_t reserved1; //align
uint64_t buf;
}__attribute__((packed))ssd_log_op_msg_t;
typedef struct ssd_log_resp_msg
{
uint8_t tag;
uint16_t status :2;
uint16_t reserved1 :2; //align with the normal resp msg
uint16_t nr_log :12;
uint8_t fun;
uint32_t reserved;
}__attribute__((packed))ssd_log_resp_msg_t;
/* resp msg */
typedef union ssd_response_msq
{
ssd_resp_msg_t resp_msg;
ssd_log_resp_msg_t log_resp_msg;
uint64_t u64_msg;
uint32_t u32_msg[2];
} ssd_response_msq_t;
/* custom struct */
typedef struct ssd_protocol_info
{
uint32_t ver;
uint32_t init_state_reg;
uint32_t init_state_reg_sz;
uint32_t chip_info_reg;
uint32_t chip_info_reg_sz;
} ssd_protocol_info_t;
typedef struct ssd_hw_info
{
uint32_t bridge_ver;
uint32_t ctrl_ver;
uint32_t cmd_fifo_sz;
uint32_t cmd_fifo_sz_mask;
uint32_t cmd_max_sg;
uint32_t sg_max_sec;
uint32_t resp_ptr_sz;
uint32_t resp_msg_sz;
uint16_t nr_ctrl;
uint16_t nr_data_ch;
uint16_t nr_ch;
uint16_t max_ch;
uint16_t nr_chip;
uint8_t pcb_ver;
uint8_t upper_pcb_ver;
uint8_t nand_vendor_id;
uint8_t nand_dev_id;
uint8_t max_ce;
uint8_t id_size;
uint16_t oob_size;
uint16_t bbf_pages;
uint16_t bbf_seek; //
uint16_t page_count; //per block
uint32_t page_size;
uint32_t block_count; //per flash
uint64_t ram_size;
uint32_t ram_align;
uint32_t ram_max_len;
uint64_t bbt_base;
uint32_t bbt_size;
uint64_t md_base; //metadata
uint32_t md_size;
uint32_t md_entry_sz;
uint32_t log_sz;
uint64_t nand_wbuff_base;
uint32_t md_reserved_blks;
uint32_t reserved_blks;
uint32_t valid_pages;
uint32_t max_valid_pages;
uint64_t size;
} ssd_hw_info_t;
typedef struct ssd_hw_info_extend
{
uint8_t board_type;
uint8_t cap_type;
uint8_t plp_type;
uint8_t work_mode;
uint8_t form_factor;
uint8_t pad[59];
}ssd_hw_info_extend_t;
typedef struct ssd_rom_info
{
uint32_t size;
uint32_t block_size;
uint16_t page_size;
uint8_t nr_bridge_fw;
uint8_t nr_ctrl_fw;
uint8_t nr_bm_fw;
uint8_t nr_smart;
uint32_t bridge_fw_base;
uint32_t bridge_fw_sz;
uint32_t ctrl_fw_base;
uint32_t ctrl_fw_sz;
uint32_t bm_fw_base;
uint32_t bm_fw_sz;
uint32_t log_base;
uint32_t log_sz;
uint32_t smart_base;
uint32_t smart_sz;
uint32_t vp_base;
uint32_t label_base;
} ssd_rom_info_t;
/* debug info */
enum ssd_debug_type
{
SSD_DEBUG_NONE = 0,
SSD_DEBUG_READ_ERR,
SSD_DEBUG_WRITE_ERR,
SSD_DEBUG_RW_ERR,
SSD_DEBUG_READ_TO,
SSD_DEBUG_WRITE_TO,
SSD_DEBUG_RW_TO,
SSD_DEBUG_LOG,
SSD_DEBUG_OFFLINE,
SSD_DEBUG_NR
};
typedef struct ssd_debug_info
{
int type;
union {
struct {
uint64_t off;
uint32_t len;
} loc;
struct {
int event;
uint32_t extra;
} log;
} data;
}ssd_debug_info_t;
/* label */
#define SSD_LABEL_FIELD_SZ 32
#define SSD_SN_SZ 16
typedef struct ssd_label
{
char date[SSD_LABEL_FIELD_SZ];
char sn[SSD_LABEL_FIELD_SZ];
char part[SSD_LABEL_FIELD_SZ];
char desc[SSD_LABEL_FIELD_SZ];
char other[SSD_LABEL_FIELD_SZ];
char maf[SSD_LABEL_FIELD_SZ];
} ssd_label_t;
#define SSD_LABEL_DESC_SZ 256
typedef struct ssd_labelv3
{
char boardtype[SSD_LABEL_FIELD_SZ];
char barcode[SSD_LABEL_FIELD_SZ];
char item[SSD_LABEL_FIELD_SZ];
char description[SSD_LABEL_DESC_SZ];
char manufactured[SSD_LABEL_FIELD_SZ];
char vendorname[SSD_LABEL_FIELD_SZ];
char issuenumber[SSD_LABEL_FIELD_SZ];
char cleicode[SSD_LABEL_FIELD_SZ];
char bom[SSD_LABEL_FIELD_SZ];
} ssd_labelv3_t;
/* battery */
typedef struct ssd_battery_info
{
uint32_t fw_ver;
} ssd_battery_info_t;
/* ssd power stat */
typedef struct ssd_power_stat
{
uint64_t nr_poweron;
uint64_t nr_powerloss;
uint64_t init_failed;
} ssd_power_stat_t;
/* io stat */
typedef struct ssd_io_stat
{
uint64_t run_time;
uint64_t nr_to;
uint64_t nr_ioerr;
uint64_t nr_rwerr;
uint64_t nr_read;
uint64_t nr_write;
uint64_t rsectors;
uint64_t wsectors;
} ssd_io_stat_t;
/* ecc */
typedef struct ssd_ecc_info
{
uint64_t bitflip[SSD_ECC_MAX_FLIP];
} ssd_ecc_info_t;
/* log */
enum ssd_log_level
{
SSD_LOG_LEVEL_INFO = 0,
SSD_LOG_LEVEL_NOTICE,
SSD_LOG_LEVEL_WARNING,
SSD_LOG_LEVEL_ERR,
SSD_LOG_NR_LEVEL
};
typedef struct ssd_log_info
{
uint64_t nr_log;
uint64_t stat[SSD_LOG_NR_LEVEL];
} ssd_log_info_t;
/* S.M.A.R.T. */
#define SSD_SMART_MAGIC (0x5452414D53445353ull)
typedef struct ssd_smart
{
struct ssd_power_stat pstat;
struct ssd_io_stat io_stat;
struct ssd_ecc_info ecc_info;
struct ssd_log_info log_info;
uint64_t version;
uint64_t magic;
} ssd_smart_t;
/* internal log */
typedef struct ssd_internal_log
{
uint32_t nr_log;
void *log;
} ssd_internal_log_t;
/* ssd cmd */
typedef struct ssd_cmd
{
struct bio *bio;
struct scatterlist *sgl;
struct list_head list;
void *dev;
int nsegs;
int flag; /*pbio(1) or bio(0)*/
int tag;
void *msg;
dma_addr_t msg_dma;
unsigned long start_time;
int errors;
unsigned int nr_log;
struct timer_list cmd_timer;
struct completion *waiting;
} ssd_cmd_t;
typedef void (*send_cmd_func)(struct ssd_cmd *);
typedef int (*ssd_event_call)(struct gendisk *, int, int); /* gendisk, event id, event level */
/* dcmd sz */
#define SSD_DCMD_MAX_SZ 32
typedef struct ssd_dcmd
{
struct list_head list;
void *dev;
uint8_t msg[SSD_DCMD_MAX_SZ];
} ssd_dcmd_t;
enum ssd_state {
SSD_INIT_WORKQ,
SSD_INIT_BD,
SSD_ONLINE,
/* full reset */
SSD_RESETING,
/* hw log */
SSD_LOG_HW,
/* log err */
SSD_LOG_ERR
};
#define SSD_QUEUE_NAME_LEN 16
typedef struct ssd_queue {
char name[SSD_QUEUE_NAME_LEN];
void *dev;
int idx;
uint32_t resp_idx;
uint32_t resp_idx_mask;
uint32_t resp_msg_sz;
void *resp_msg;
void *resp_ptr;
struct ssd_cmd *cmd;
struct ssd_io_stat io_stat;
struct ssd_ecc_info ecc_info;
} ssd_queue_t;
typedef struct ssd_device {
char name[SSD_DEV_NAME_LEN];
int idx;
int major;
int readonly;
int int_mode;
#ifdef SSD_ESCAPE_IRQ
int irq_cpu;
#endif
int reload_fw;
int ot_delay; //in ms
atomic_t refcnt;
atomic_t tocnt;
atomic_t in_flight[2]; //r&w
uint64_t uptime;
struct list_head list;
struct pci_dev *pdev;
unsigned long mmio_base;
unsigned long mmio_len;
void __iomem *ctrlp;
struct mutex spi_mutex;
struct mutex i2c_mutex;
struct ssd_protocol_info protocol_info;
struct ssd_hw_info hw_info;
struct ssd_rom_info rom_info;
struct ssd_label label;
struct ssd_smart smart;
atomic_t in_sendq;
spinlock_t sendq_lock;
struct ssd_blist sendq;
struct task_struct *send_thread;
wait_queue_head_t send_waitq;
atomic_t in_doneq;
spinlock_t doneq_lock;
struct ssd_blist doneq;
struct task_struct *done_thread;
wait_queue_head_t done_waitq;
struct ssd_dcmd *dcmd;
spinlock_t dcmd_lock;
struct list_head dcmd_list; /* direct cmd list */
wait_queue_head_t dcmd_wq;
unsigned long *tag_map;
wait_queue_head_t tag_wq;
spinlock_t cmd_lock;
struct ssd_cmd *cmd;
send_cmd_func scmd;
ssd_event_call event_call;
void *msg_base;
dma_addr_t msg_base_dma;
uint32_t resp_idx;
void *resp_msg_base;
void *resp_ptr_base;
dma_addr_t resp_msg_base_dma;
dma_addr_t resp_ptr_base_dma;
int nr_queue;
struct msix_entry entry[SSD_MSIX_VEC];
struct ssd_queue queue[SSD_MSIX_VEC];
struct request_queue *rq; /* The device request queue */
struct gendisk *gd; /* The gendisk structure */
struct mutex internal_log_mutex;
struct ssd_internal_log internal_log;
struct workqueue_struct *workq;
struct work_struct log_work; /* get log */
void *log_buf;
unsigned long state; /* device state, for example, block device inited */
struct module *owner;
/* extend */
int slave;
int cmajor;
int save_md;
int ot_protect;
struct kref kref;
struct mutex gd_mutex;
struct ssd_log_info log_info; /* volatile */
atomic_t queue_depth;
struct mutex barrier_mutex;
struct mutex fw_mutex;
struct ssd_hw_info_extend hw_info_ext;
struct ssd_labelv3 labelv3;
int wmode;
int user_wmode;
struct mutex bm_mutex;
struct work_struct bm_work; /* check bm */
struct timer_list bm_timer;
struct sfifo log_fifo;
struct timer_list routine_timer;
unsigned long routine_tick;
unsigned long hwmon;
struct work_struct hwmon_work; /* check hw */
struct work_struct capmon_work; /* check battery */
struct work_struct tempmon_work; /* check temp */
/* debug info */
struct ssd_debug_info db_info;
} ssd_device_t;
/* Ioctl struct */
typedef struct ssd_acc_info {
uint32_t threshold_l1;
uint32_t threshold_l2;
uint32_t val;
} ssd_acc_info_t;
typedef struct ssd_reg_op_info
{
uint32_t offset;
uint32_t value;
} ssd_reg_op_info_t;
typedef struct ssd_spi_op_info
{
void __user *buf;
uint32_t off;
uint32_t len;
} ssd_spi_op_info_t;
typedef struct ssd_i2c_op_info
{
uint8_t saddr;
uint8_t wsize;
uint8_t rsize;
void __user *wbuf;
void __user *rbuf;
} ssd_i2c_op_info_t;
typedef struct ssd_smbus_op_info
{
uint8_t saddr;
uint8_t cmd;
uint8_t size;
void __user *buf;
} ssd_smbus_op_info_t;
typedef struct ssd_ram_op_info {
uint8_t ctrl_idx;
uint32_t length;
uint64_t start;
uint8_t __user *buf;
} ssd_ram_op_info_t;
typedef struct ssd_flash_op_info {
uint32_t page;
uint16_t flash;
uint8_t chip;
uint8_t ctrl_idx;
uint8_t __user *buf;
} ssd_flash_op_info_t;
typedef struct ssd_sw_log_info {
uint16_t event;
uint16_t pad;
uint32_t data;
} ssd_sw_log_info_t;
typedef struct ssd_version_info
{
uint32_t bridge_ver; /* bridge fw version */
uint32_t ctrl_ver; /* controller fw version */
uint32_t bm_ver; /* battery manager fw version */
uint8_t pcb_ver; /* main pcb version */
uint8_t upper_pcb_ver;
uint8_t pad0;
uint8_t pad1;
} ssd_version_info_t;
typedef struct pci_addr
{
uint16_t domain;
uint8_t bus;
uint8_t slot;
uint8_t func;
} pci_addr_t;
typedef struct ssd_drv_param_info {
int mode;
int status_mask;
int int_mode;
int threaded_irq;
int log_level;
int wmode;
int ot_protect;
int finject;
int pad[8];
} ssd_drv_param_info_t;
/* form factor */
enum ssd_form_factor
{
SSD_FORM_FACTOR_HHHL = 0,
SSD_FORM_FACTOR_FHHL
};
/* ssd power loss protect */
enum ssd_plp_type
{
SSD_PLP_SCAP = 0,
SSD_PLP_CAP,
SSD_PLP_NONE
};
/* ssd bm */
#define SSD_BM_SLAVE_ADDRESS 0x16
#define SSD_BM_CAP 5
/* SBS cmd */
#define SSD_BM_SAFETYSTATUS 0x51
#define SSD_BM_OPERATIONSTATUS 0x54
/* ManufacturerAccess */
#define SSD_BM_MANUFACTURERACCESS 0x00
#define SSD_BM_ENTER_CAP_LEARNING 0x0023 /* cap learning */
/* Data flash access */
#define SSD_BM_DATA_FLASH_SUBCLASS_ID 0x77
#define SSD_BM_DATA_FLASH_SUBCLASS_ID_PAGE1 0x78
#define SSD_BM_SYSTEM_DATA_SUBCLASS_ID 56
#define SSD_BM_CONFIGURATION_REGISTERS_ID 64
/* min cap voltage */
#define SSD_BM_CAP_VOLT_MIN 500
/*
enum ssd_bm_cap
{
SSD_BM_CAP_VINA = 1,
SSD_BM_CAP_JH = 3
};*/
enum ssd_bmstatus
{
SSD_BMSTATUS_OK = 0,
SSD_BMSTATUS_CHARGING, /* not fully charged */
SSD_BMSTATUS_WARNING
};
enum sbs_unit {
SBS_UNIT_VALUE = 0,
SBS_UNIT_TEMPERATURE,
SBS_UNIT_VOLTAGE,
SBS_UNIT_CURRENT,
SBS_UNIT_ESR,
SBS_UNIT_PERCENT,
SBS_UNIT_CAPACITANCE
};
enum sbs_size {
SBS_SIZE_BYTE = 1,
SBS_SIZE_WORD,
SBS_SIZE_BLK,
};
struct sbs_cmd {
uint8_t cmd;
uint8_t size;
uint8_t unit;
uint8_t off;
uint16_t mask;
char *desc;
};
struct ssd_bm {
uint16_t temp;
uint16_t volt;
uint16_t curr;
uint16_t esr;
uint16_t rsoc;
uint16_t health;
uint16_t cap;
uint16_t chg_curr;
uint16_t chg_volt;
uint16_t cap_volt[SSD_BM_CAP];
uint16_t sf_alert;
uint16_t sf_status;
uint16_t op_status;
uint16_t sys_volt;
};
struct ssd_bm_manufacturer_data
{
uint16_t pack_lot_code;
uint16_t pcb_lot_code;
uint16_t firmware_ver;
uint16_t hardware_ver;
};
struct ssd_bm_configuration_registers
{
struct {
uint16_t cc:3;
uint16_t rsvd:5;
uint16_t stack:1;
uint16_t rsvd1:2;
uint16_t temp:2;
uint16_t rsvd2:1;
uint16_t lt_en:1;
uint16_t rsvd3:1;
} operation_cfg;
uint16_t pad;
uint16_t fet_action;
uint16_t pad1;
uint16_t fault;
};
#define SBS_VALUE_MASK 0xffff
#define bm_var_offset(var) ((size_t) &((struct ssd_bm *)0)->var)
#define bm_var(start, offset) ((void *) start + (offset))
static struct sbs_cmd ssd_bm_sbs[] = {
{0x08, SBS_SIZE_WORD, SBS_UNIT_TEMPERATURE, bm_var_offset(temp), SBS_VALUE_MASK, "Temperature"},
{0x09, SBS_SIZE_WORD, SBS_UNIT_VOLTAGE, bm_var_offset(volt), SBS_VALUE_MASK, "Voltage"},
{0x0a, SBS_SIZE_WORD, SBS_UNIT_CURRENT, bm_var_offset(curr), SBS_VALUE_MASK, "Current"},
{0x0b, SBS_SIZE_WORD, SBS_UNIT_ESR, bm_var_offset(esr), SBS_VALUE_MASK, "ESR"},
{0x0d, SBS_SIZE_BYTE, SBS_UNIT_PERCENT, bm_var_offset(rsoc), SBS_VALUE_MASK, "RelativeStateOfCharge"},
{0x0e, SBS_SIZE_BYTE, SBS_UNIT_PERCENT, bm_var_offset(health), SBS_VALUE_MASK, "Health"},
{0x10, SBS_SIZE_WORD, SBS_UNIT_CAPACITANCE, bm_var_offset(cap), SBS_VALUE_MASK, "Capacitance"},
{0x14, SBS_SIZE_WORD, SBS_UNIT_CURRENT, bm_var_offset(chg_curr), SBS_VALUE_MASK, "ChargingCurrent"},
{0x15, SBS_SIZE_WORD, SBS_UNIT_VOLTAGE, bm_var_offset(chg_volt), SBS_VALUE_MASK, "ChargingVoltage"},
{0x3b, SBS_SIZE_WORD, SBS_UNIT_VOLTAGE, (uint8_t)bm_var_offset(cap_volt[4]), SBS_VALUE_MASK, "CapacitorVoltage5"},
{0x3c, SBS_SIZE_WORD, SBS_UNIT_VOLTAGE, (uint8_t)bm_var_offset(cap_volt[3]), SBS_VALUE_MASK, "CapacitorVoltage4"},
{0x3d, SBS_SIZE_WORD, SBS_UNIT_VOLTAGE, (uint8_t)bm_var_offset(cap_volt[2]), SBS_VALUE_MASK, "CapacitorVoltage3"},
{0x3e, SBS_SIZE_WORD, SBS_UNIT_VOLTAGE, (uint8_t)bm_var_offset(cap_volt[1]), SBS_VALUE_MASK, "CapacitorVoltage2"},
{0x3f, SBS_SIZE_WORD, SBS_UNIT_VOLTAGE, (uint8_t)bm_var_offset(cap_volt[0]), SBS_VALUE_MASK, "CapacitorVoltage1"},
{0x50, SBS_SIZE_WORD, SBS_UNIT_VALUE, bm_var_offset(sf_alert), 0x870F, "SafetyAlert"},
{0x51, SBS_SIZE_WORD, SBS_UNIT_VALUE, bm_var_offset(sf_status), 0xE7BF, "SafetyStatus"},
{0x54, SBS_SIZE_WORD, SBS_UNIT_VALUE, bm_var_offset(op_status), 0x79F4, "OperationStatus"},
{0x5a, SBS_SIZE_WORD, SBS_UNIT_VOLTAGE, bm_var_offset(sys_volt), SBS_VALUE_MASK, "SystemVoltage"},
{0, 0, 0, 0, 0, NULL},
};
/* ssd ioctl */
#define SSD_CMD_GET_PROTOCOL_INFO _IOR('H', 100, struct ssd_protocol_info)
#define SSD_CMD_GET_HW_INFO _IOR('H', 101, struct ssd_hw_info)
#define SSD_CMD_GET_ROM_INFO _IOR('H', 102, struct ssd_rom_info)
#define SSD_CMD_GET_SMART _IOR('H', 103, struct ssd_smart)
#define SSD_CMD_GET_IDX _IOR('H', 105, int)
#define SSD_CMD_GET_AMOUNT _IOR('H', 106, int)
#define SSD_CMD_GET_TO_INFO _IOR('H', 107, int)
#define SSD_CMD_GET_DRV_VER _IOR('H', 108, char[DRIVER_VERSION_LEN])
#define SSD_CMD_GET_BBACC_INFO _IOR('H', 109, struct ssd_acc_info)
#define SSD_CMD_GET_ECACC_INFO _IOR('H', 110, struct ssd_acc_info)
#define SSD_CMD_GET_HW_INFO_EXT _IOR('H', 111, struct ssd_hw_info_extend)
#define SSD_CMD_REG_READ _IOWR('H', 120, struct ssd_reg_op_info)
#define SSD_CMD_REG_WRITE _IOWR('H', 121, struct ssd_reg_op_info)
#define SSD_CMD_SPI_READ _IOWR('H', 125, struct ssd_spi_op_info)
#define SSD_CMD_SPI_WRITE _IOWR('H', 126, struct ssd_spi_op_info)
#define SSD_CMD_SPI_ERASE _IOWR('H', 127, struct ssd_spi_op_info)
#define SSD_CMD_I2C_READ _IOWR('H', 128, struct ssd_i2c_op_info)
#define SSD_CMD_I2C_WRITE _IOWR('H', 129, struct ssd_i2c_op_info)
#define SSD_CMD_I2C_WRITE_READ _IOWR('H', 130, struct ssd_i2c_op_info)
#define SSD_CMD_SMBUS_SEND_BYTE _IOWR('H', 131, struct ssd_smbus_op_info)
#define SSD_CMD_SMBUS_RECEIVE_BYTE _IOWR('H', 132, struct ssd_smbus_op_info)
#define SSD_CMD_SMBUS_WRITE_BYTE _IOWR('H', 133, struct ssd_smbus_op_info)
#define SSD_CMD_SMBUS_READ_BYTE _IOWR('H', 135, struct ssd_smbus_op_info)
#define SSD_CMD_SMBUS_WRITE_WORD _IOWR('H', 136, struct ssd_smbus_op_info)
#define SSD_CMD_SMBUS_READ_WORD _IOWR('H', 137, struct ssd_smbus_op_info)
#define SSD_CMD_SMBUS_WRITE_BLOCK _IOWR('H', 138, struct ssd_smbus_op_info)
#define SSD_CMD_SMBUS_READ_BLOCK _IOWR('H', 139, struct ssd_smbus_op_info)
#define SSD_CMD_BM_GET_VER _IOR('H', 140, uint16_t)
#define SSD_CMD_BM_GET_NR_CAP _IOR('H', 141, int)
#define SSD_CMD_BM_CAP_LEARNING _IOW('H', 142, int)
#define SSD_CMD_CAP_LEARN _IOR('H', 143, uint32_t)
#define SSD_CMD_GET_CAP_STATUS _IOR('H', 144, int)
#define SSD_CMD_RAM_READ _IOWR('H', 150, struct ssd_ram_op_info)
#define SSD_CMD_RAM_WRITE _IOWR('H', 151, struct ssd_ram_op_info)
#define SSD_CMD_NAND_READ_ID _IOR('H', 160, struct ssd_flash_op_info)
#define SSD_CMD_NAND_READ _IOWR('H', 161, struct ssd_flash_op_info) //with oob
#define SSD_CMD_NAND_WRITE _IOWR('H', 162, struct ssd_flash_op_info)
#define SSD_CMD_NAND_ERASE _IOWR('H', 163, struct ssd_flash_op_info)
#define SSD_CMD_NAND_READ_EXT _IOWR('H', 164, struct ssd_flash_op_info) //ingore EIO
#define SSD_CMD_UPDATE_BBT _IOW('H', 180, struct ssd_flash_op_info)
#define SSD_CMD_CLEAR_ALARM _IOW('H', 190, int)
#define SSD_CMD_SET_ALARM _IOW('H', 191, int)
#define SSD_CMD_RESET _IOW('H', 200, int)
#define SSD_CMD_RELOAD_FW _IOW('H', 201, int)
#define SSD_CMD_UNLOAD_DEV _IOW('H', 202, int)
#define SSD_CMD_LOAD_DEV _IOW('H', 203, int)
#define SSD_CMD_UPDATE_VP _IOWR('H', 205, uint32_t)
#define SSD_CMD_FULL_RESET _IOW('H', 206, int)
#define SSD_CMD_GET_NR_LOG _IOR('H', 220, uint32_t)
#define SSD_CMD_GET_LOG _IOR('H', 221, void *)
#define SSD_CMD_LOG_LEVEL _IOW('H', 222, int)
#define SSD_CMD_OT_PROTECT _IOW('H', 223, int)
#define SSD_CMD_GET_OT_STATUS _IOR('H', 224, int)
#define SSD_CMD_CLEAR_LOG _IOW('H', 230, int)
#define SSD_CMD_CLEAR_SMART _IOW('H', 231, int)
#define SSD_CMD_SW_LOG _IOW('H', 232, struct ssd_sw_log_info)
#define SSD_CMD_GET_LABEL _IOR('H', 235, struct ssd_label)
#define SSD_CMD_GET_VERSION _IOR('H', 236, struct ssd_version_info)
#define SSD_CMD_GET_TEMPERATURE _IOR('H', 237, int)
#define SSD_CMD_GET_BMSTATUS _IOR('H', 238, int)
#define SSD_CMD_GET_LABEL2 _IOR('H', 239, void *)
#define SSD_CMD_FLUSH _IOW('H', 240, int)
#define SSD_CMD_SAVE_MD _IOW('H', 241, int)
#define SSD_CMD_SET_WMODE _IOW('H', 242, int)
#define SSD_CMD_GET_WMODE _IOR('H', 243, int)
#define SSD_CMD_GET_USER_WMODE _IOR('H', 244, int)
#define SSD_CMD_DEBUG _IOW('H', 250, struct ssd_debug_info)
#define SSD_CMD_DRV_PARAM_INFO _IOR('H', 251, struct ssd_drv_param_info)
/* log */
#define SSD_LOG_MAX_SZ 4096
#define SSD_LOG_LEVEL SSD_LOG_LEVEL_NOTICE
enum ssd_log_data
{
SSD_LOG_DATA_NONE = 0,
SSD_LOG_DATA_LOC,
SSD_LOG_DATA_HEX
};
typedef struct ssd_log_entry
{
union {
struct {
uint32_t page:10;
uint32_t block:14;
uint32_t flash:8;
} loc;
struct {
uint32_t page:12;
uint32_t block:12;
uint32_t flash:8;
} loc1;
uint32_t val;
} data;
uint16_t event:10;
uint16_t mod:6;
uint16_t idx;
}__attribute__((packed))ssd_log_entry_t;
typedef struct ssd_log
{
uint64_t time:56;
uint64_t ctrl_idx:8;
ssd_log_entry_t le;
} __attribute__((packed)) ssd_log_t;
typedef struct ssd_log_desc
{
uint16_t event;
uint8_t level;
uint8_t data;
uint8_t sblock;
uint8_t spage;
char *desc;
} __attribute__((packed)) ssd_log_desc_t;
#define SSD_LOG_SW_IDX 0xF
#define SSD_UNKNOWN_EVENT ((uint16_t)-1)
static struct ssd_log_desc ssd_log_desc[] = {
/* event, level, show flash, show block, show page, desc */
{0x0, SSD_LOG_LEVEL_WARNING, SSD_LOG_DATA_LOC, 0, 0, "Create BBT failure"}, //g3
{0x1, SSD_LOG_LEVEL_WARNING, SSD_LOG_DATA_LOC, 0, 0, "Read BBT failure"}, //g3
{0x2, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 0, "Mark bad block"},
{0x3, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 0, 0, "Flush BBT failure"},
{0x4, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Program failure"},
{0x7, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 1, "No available blocks"},
{0x8, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 0, "Bad EC header"},
{0x9, SSD_LOG_LEVEL_WARNING, SSD_LOG_DATA_LOC, 1, 0, "Bad VID header"}, //g3
{0xa, SSD_LOG_LEVEL_INFO, SSD_LOG_DATA_LOC, 1, 0, "Wear leveling"},
{0xb, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "WL read back failure"},
{0x11, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 1, "Data recovery failure"}, // err
{0x20, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 1, "Init: scan mapping table failure"}, // err g3
{0x21, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Program failure"},
{0x22, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Program failure"},
{0x23, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Program failure"},
{0x24, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 0, "Merge: read mapping page failure"},
{0x25, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Merge: read back failure"},
{0x26, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Program failure"},
{0x27, SSD_LOG_LEVEL_WARNING, SSD_LOG_DATA_LOC, 1, 1, "Data corrupted for abnormal power down"}, //g3
{0x28, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Merge: mapping page corrupted"},
{0x29, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 0, "Init: no mapping page"},
{0x2a, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Init: mapping pages incomplete"},
{0x2b, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 1, "Read back failure after programming failure"}, // err
{0xf1, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 1, "Read failure without recovery"}, // err
{0xf2, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 0, 0, "No available blocks"}, // maybe err g3
{0xf3, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 0, "Init: RAID incomplete"}, // err g3
{0xf4, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Program failure"},
{0xf5, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Read failure in moving data"},
{0xf6, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Program failure"},
{0xf7, SSD_LOG_LEVEL_WARNING, SSD_LOG_DATA_LOC, 1, 1, "Init: RAID not complete"},
{0xf8, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 0, "Init: data moving interrupted"},
{0xfe, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 0, 0, "Data inspection failure"},
{0xff, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "IO: ECC failed"},
/* new */
{0x2e, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 0, 0, "No available reserved blocks" }, // err
{0x30, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 0, 0, "Init: PMT membership not found"},
{0x31, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "Init: PMT corrupted"},
{0x32, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 0, 0, "Init: PBT membership not found"},
{0x33, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 0, 0, "Init: PBT not found"},
{0x34, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 0, 0, "Init: PBT corrupted"},
{0x35, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Init: PMT page read failure"},
{0x36, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Init: PBT page read failure"},
{0x37, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Init: PBT backup page read failure"},
{0x38, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Init: PBMT read failure"},
{0x39, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 1, "Init: PBMT scan failure"}, // err
{0x3a, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Init: first page read failure"},
{0x3b, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 1, "Init: first page scan failure"}, // err
{0x3c, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 1, "Init: scan unclosed block failure"}, // err
{0x3d, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Init: write pointer mismatch"},
{0x3e, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Init: PMT recovery: PBMT read failure"},
{0x3f, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 0, "Init: PMT recovery: PBMT scan failure"},
{0x40, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 1, "Init: PMT recovery: data page read failure"}, //err
{0x41, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Init: PBT write pointer mismatch"},
{0x42, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Init: PBT latest version corrupted"},
{0x43, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 0, "Init: too many unclosed blocks"},
{0x44, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "Init: PDW block found"},
{0x45, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_HEX, 0, 0, "Init: more than one PDW block found"}, //err
{0x46, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Init: first page is blank or read failure"},
{0x47, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 0, 0, "Init: PDW block not found"},
{0x50, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 0, "Cache: hit error data"}, // err
{0x51, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 0, "Cache: read back failure"}, // err
{0x52, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Cache: unknown command"}, //?
{0x53, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_LOC, 1, 1, "GC/WL read back failure"}, // err
{0x60, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 0, "Erase failure"},
{0x70, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "LPA not matched"},
{0x71, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "PBN not matched"},
{0x72, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Read retry failure"},
{0x73, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Need raid recovery"},
{0x74, SSD_LOG_LEVEL_INFO, SSD_LOG_DATA_LOC, 1, 1, "Need read retry"},
{0x75, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Read invalid data page"},
{0x76, SSD_LOG_LEVEL_INFO, SSD_LOG_DATA_LOC, 1, 1, "ECC error, data in cache, PBN matched"},
{0x77, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "ECC error, data in cache, PBN not matched"},
{0x78, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "ECC error, data in flash, PBN not matched"},
{0x79, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "ECC ok, data in cache, LPA not matched"},
{0x7a, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "ECC ok, data in flash, LPA not matched"},
{0x7b, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "RAID data in cache, LPA not matched"},
{0x7c, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "RAID data in flash, LPA not matched"},
{0x7d, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Read data page status error"},
{0x7e, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Read blank page"},
{0x7f, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Access flash timeout"},
{0x80, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 0, "EC overflow"},
{0x81, SSD_LOG_LEVEL_INFO, SSD_LOG_DATA_NONE, 0, 0, "Scrubbing completed"},
{0x82, SSD_LOG_LEVEL_INFO, SSD_LOG_DATA_LOC, 1, 0, "Unstable block(too much bit flip)"},
{0x83, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 0, "GC: ram error"}, //?
{0x84, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 0, "GC: one PBMT read failure"},
{0x88, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 0, "GC: mark bad block"},
{0x89, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 0, "GC: invalid page count error"}, // maybe err
{0x8a, SSD_LOG_LEVEL_WARNING, SSD_LOG_DATA_NONE, 0, 0, "Warning: Bad Block close to limit"},
{0x8b, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_NONE, 0, 0, "Error: Bad Block over limit"},
{0x8c, SSD_LOG_LEVEL_WARNING, SSD_LOG_DATA_NONE, 0, 0, "Warning: P/E cycles close to limit"},
{0x8d, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_NONE, 0, 0, "Error: P/E cycles over limit"},
{0x90, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Over temperature"}, //xx
{0x91, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Temperature is OK"}, //xx
{0x92, SSD_LOG_LEVEL_WARNING, SSD_LOG_DATA_NONE, 0, 0, "Battery fault"},
{0x93, SSD_LOG_LEVEL_WARNING, SSD_LOG_DATA_NONE, 0, 0, "SEU fault"}, //err
{0x94, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_NONE, 0, 0, "DDR error"}, //err
{0x95, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_NONE, 0, 0, "Controller serdes error"}, //err
{0x96, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_NONE, 0, 0, "Bridge serdes 1 error"}, //err
{0x97, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_NONE, 0, 0, "Bridge serdes 2 error"}, //err
{0x98, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "SEU fault (corrected)"}, //err
{0x99, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Battery is OK"},
{0x9a, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Temperature close to limit"}, //xx
{0x9b, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "SEU fault address (low)"},
{0x9c, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "SEU fault address (high)"},
{0x9d, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "I2C fault" },
{0x9e, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "DDR single bit error" },
{0x9f, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Board voltage fault" },
{0xa0, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "LPA not matched"},
{0xa1, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Re-read data in cache"},
{0xa2, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Read blank page"},
{0xa3, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "RAID recovery: Read blank page"},
{0xa4, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "RAID recovery: new data in cache"},
{0xa5, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "RAID recovery: PBN not matched"},
{0xa6, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Read data with error flag"},
{0xa7, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "RAID recovery: recoverd data with error flag"},
{0xa8, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Blank page in cache, PBN matched"},
{0xa9, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "RAID recovery: Blank page in cache, PBN matched"},
{0xaa, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 0, 0, "Flash init failure"},
{0xab, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "Mapping table recovery failure"},
{0xac, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_LOC, 1, 1, "RAID recovery: ECC failed"},
{0xb0, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Temperature is up to degree 95"},
{0xb1, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Temperature is up to degree 100"},
{0x300, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_HEX, 0, 0, "CMD timeout"},
{0x301, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "Power on"},
{0x302, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Power off"},
{0x303, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Clear log"},
{0x304, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "Set capacity"},
{0x305, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Clear data"},
{0x306, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "BM safety status"},
{0x307, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_HEX, 0, 0, "I/O error"},
{0x308, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "CMD error"},
{0x309, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "Set wmode"},
{0x30a, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_HEX, 0, 0, "DDR init failed" },
{0x30b, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "PCIe link status" },
{0x30c, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_HEX, 0, 0, "Controller reset sync error" },
{0x30d, SSD_LOG_LEVEL_ERR, SSD_LOG_DATA_HEX, 0, 0, "Clock fault" },
{0x30e, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "FPGA voltage fault status" },
{0x30f, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "Set capacity finished"},
{0x310, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Clear data finished"},
{0x311, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "Reset"},
{0x312, SSD_LOG_LEVEL_WARNING,SSD_LOG_DATA_HEX, 0, 0, "CAP: voltage fault"},
{0x313, SSD_LOG_LEVEL_WARNING,SSD_LOG_DATA_NONE, 0, 0, "CAP: learn fault"},
{0x314, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "CAP status"},
{0x315, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "Board voltage fault status"},
{0x316, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Inlet over temperature"},
{0x317, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Inlet temperature is OK"},
{0x318, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Flash over temperature"},
{0x319, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Flash temperature is OK"},
{0x31a, SSD_LOG_LEVEL_WARNING,SSD_LOG_DATA_NONE, 0, 0, "CAP: short circuit"},
{0x31b, SSD_LOG_LEVEL_WARNING,SSD_LOG_DATA_HEX, 0, 0, "Sensor fault"},
{0x31c, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Erase all data"},
{0x31d, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_NONE, 0, 0, "Erase all data finished"},
{SSD_UNKNOWN_EVENT, SSD_LOG_LEVEL_NOTICE, SSD_LOG_DATA_HEX, 0, 0, "unknown event"},
};
/* */
#define SSD_LOG_OVER_TEMP 0x90
#define SSD_LOG_NORMAL_TEMP 0x91
#define SSD_LOG_WARN_TEMP 0x9a
#define SSD_LOG_SEU_FAULT 0x93
#define SSD_LOG_SEU_FAULT1 0x98
#define SSD_LOG_BATTERY_FAULT 0x92
#define SSD_LOG_BATTERY_OK 0x99
#define SSD_LOG_BOARD_VOLT_FAULT 0x9f
/* software log */
#define SSD_LOG_TIMEOUT 0x300
#define SSD_LOG_POWER_ON 0x301
#define SSD_LOG_POWER_OFF 0x302
#define SSD_LOG_CLEAR_LOG 0x303
#define SSD_LOG_SET_CAPACITY 0x304
#define SSD_LOG_CLEAR_DATA 0x305
#define SSD_LOG_BM_SFSTATUS 0x306
#define SSD_LOG_EIO 0x307
#define SSD_LOG_ECMD 0x308
#define SSD_LOG_SET_WMODE 0x309
#define SSD_LOG_DDR_INIT_ERR 0x30a
#define SSD_LOG_PCIE_LINK_STATUS 0x30b
#define SSD_LOG_CTRL_RST_SYNC 0x30c
#define SSD_LOG_CLK_FAULT 0x30d
#define SSD_LOG_VOLT_FAULT 0x30e
#define SSD_LOG_SET_CAPACITY_END 0x30F
#define SSD_LOG_CLEAR_DATA_END 0x310
#define SSD_LOG_RESET 0x311
#define SSD_LOG_CAP_VOLT_FAULT 0x312
#define SSD_LOG_CAP_LEARN_FAULT 0x313
#define SSD_LOG_CAP_STATUS 0x314
#define SSD_LOG_VOLT_STATUS 0x315
#define SSD_LOG_INLET_OVER_TEMP 0x316
#define SSD_LOG_INLET_NORMAL_TEMP 0x317
#define SSD_LOG_FLASH_OVER_TEMP 0x318
#define SSD_LOG_FLASH_NORMAL_TEMP 0x319
#define SSD_LOG_CAP_SHORT_CIRCUIT 0x31a
#define SSD_LOG_SENSOR_FAULT 0x31b
#define SSD_LOG_ERASE_ALL 0x31c
#define SSD_LOG_ERASE_ALL_END 0x31d
/* sw log fifo depth */
#define SSD_LOG_FIFO_SZ 1024
/* done queue */
static DEFINE_PER_CPU(struct list_head, ssd_doneq);
static DEFINE_PER_CPU(struct tasklet_struct, ssd_tasklet);
/* unloading driver */
static volatile int ssd_exiting = 0;
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,12))
static struct class_simple *ssd_class;
#else
static struct class *ssd_class;
#endif
static int ssd_cmajor = SSD_CMAJOR;
/* ssd block device major, minors */
static int ssd_major = SSD_MAJOR;
static int ssd_major_sl = SSD_MAJOR_SL;
static int ssd_minors = SSD_MINORS;
/* ssd device list */
static struct list_head ssd_list;
static unsigned long ssd_index_bits[SSD_MAX_DEV / BITS_PER_LONG + 1];
static unsigned long ssd_index_bits_sl[SSD_MAX_DEV / BITS_PER_LONG + 1];
static atomic_t ssd_nr;
/* module param */
enum ssd_drv_mode
{
SSD_DRV_MODE_STANDARD = 0, /* full */
SSD_DRV_MODE_DEBUG = 2, /* debug */
SSD_DRV_MODE_BASE /* base only */
};
enum ssd_int_mode
{
SSD_INT_LEGACY = 0,
SSD_INT_MSI,
SSD_INT_MSIX
};
#if (defined SSD_MSIX)
#define SSD_INT_MODE_DEFAULT SSD_INT_MSIX
#elif (defined SSD_MSI)
#define SSD_INT_MODE_DEFAULT SSD_INT_MSI
#else
/* auto select the defaut int mode according to the kernel version*/
/* suse 11 sp1 irqbalance bug: use msi instead*/
#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) || (defined RHEL_MAJOR && RHEL_MAJOR >= 6) || (defined RHEL_MAJOR && RHEL_MAJOR == 5 && RHEL_MINOR >= 5))
#define SSD_INT_MODE_DEFAULT SSD_INT_MSIX
#else
#define SSD_INT_MODE_DEFAULT SSD_INT_MSI
#endif
#endif
static int mode = SSD_DRV_MODE_STANDARD;
static int status_mask = 0xFF;
static int int_mode = SSD_INT_MODE_DEFAULT;
static int threaded_irq = 0;
static int log_level = SSD_LOG_LEVEL_WARNING;
static int ot_protect = 1;
static int wmode = SSD_WMODE_DEFAULT;
static int finject = 0;
module_param(mode, int, 0);
module_param(status_mask, int, 0);
module_param(int_mode, int, 0);
module_param(threaded_irq, int, 0);
module_param(log_level, int, 0);
module_param(ot_protect, int, 0);
module_param(wmode, int, 0);
module_param(finject, int, 0);
MODULE_PARM_DESC(mode, "driver mode, 0 - standard, 1 - debug, 2 - debug without IO, 3 - basic debug mode");
MODULE_PARM_DESC(status_mask, "command status mask, 0 - without command error, 0xff - with command error");
MODULE_PARM_DESC(int_mode, "preferred interrupt mode, 0 - legacy, 1 - msi, 2 - msix");
MODULE_PARM_DESC(threaded_irq, "threaded irq, 0 - normal irq, 1 - threaded irq");
MODULE_PARM_DESC(log_level, "log level to display, 0 - info and above, 1 - notice and above, 2 - warning and above, 3 - error only");
MODULE_PARM_DESC(ot_protect, "over temperature protect, 0 - disable, 1 - enable");
MODULE_PARM_DESC(wmode, "write mode, 0 - write buffer (with risk for the 6xx firmware), 1 - write buffer ex, 2 - write through, 3 - auto, 4 - default");
MODULE_PARM_DESC(finject, "enable fault simulation, 0 - off, 1 - on, for debug purpose only");
#ifndef MODULE
static int __init ssd_drv_mode(char *str)
{
mode = (int)simple_strtoul(str, NULL, 0);
return 1;
}
static int __init ssd_status_mask(char *str)
{
status_mask = (int)simple_strtoul(str, NULL, 16);
return 1;
}
static int __init ssd_int_mode(char *str)
{
int_mode = (int)simple_strtoul(str, NULL, 0);
return 1;
}
static int __init ssd_threaded_irq(char *str)
{
threaded_irq = (int)simple_strtoul(str, NULL, 0);
return 1;
}
static int __init ssd_log_level(char *str)
{
log_level = (int)simple_strtoul(str, NULL, 0);
return 1;
}
static int __init ssd_ot_protect(char *str)
{
ot_protect = (int)simple_strtoul(str, NULL, 0);
return 1;
}
static int __init ssd_wmode(char *str)
{
wmode = (int)simple_strtoul(str, NULL, 0);
return 1;
}
static int __init ssd_finject(char *str)
{
finject = (int)simple_strtoul(str, NULL, 0);
return 1;
}
__setup(MODULE_NAME"_mode=", ssd_drv_mode);
__setup(MODULE_NAME"_status_mask=", ssd_status_mask);
__setup(MODULE_NAME"_int_mode=", ssd_int_mode);
__setup(MODULE_NAME"_threaded_irq=", ssd_threaded_irq);
__setup(MODULE_NAME"_log_level=", ssd_log_level);
__setup(MODULE_NAME"_ot_protect=", ssd_ot_protect);
__setup(MODULE_NAME"_wmode=", ssd_wmode);
__setup(MODULE_NAME"_finject=", ssd_finject);
#endif
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
#include <asm/uaccess.h>
#define SSD_PROC_DIR MODULE_NAME
#define SSD_PROC_INFO "info"
static struct proc_dir_entry *ssd_proc_dir = NULL;
static struct proc_dir_entry *ssd_proc_info = NULL;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0))
static int ssd_proc_read(char *page, char **start,
off_t off, int count, int *eof, void *data)
{
struct ssd_device *dev = NULL;
struct ssd_device *n = NULL;
uint64_t size;
int idx;
int len = 0;
//char type; //xx
if (ssd_exiting) {
return 0;
}
len += snprintf((page + len), (count - len), "Driver Version:\t%s\n", DRIVER_VERSION);
list_for_each_entry_safe(dev, n, &ssd_list, list) {
idx = dev->idx + 1;
size = dev->hw_info.size ;
do_div(size, 1000000000);
len += snprintf((page + len), (count - len), "\n");
len += snprintf((page + len), (count - len), "HIO %d Size:\t%uGB\n", idx, (uint32_t)size);
len += snprintf((page + len), (count - len), "HIO %d Bridge FW VER:\t%03X\n", idx, dev->hw_info.bridge_ver);
if (dev->hw_info.ctrl_ver != 0) {
len += snprintf((page + len), (count - len), "HIO %d Controller FW VER:\t%03X\n", idx, dev->hw_info.ctrl_ver);
}
len += snprintf((page + len), (count - len), "HIO %d PCB VER:\t.%c\n", idx, dev->hw_info.pcb_ver);
if (dev->hw_info.upper_pcb_ver >= 'A') {
len += snprintf((page + len), (count - len), "HIO %d Upper PCB VER:\t.%c\n", idx, dev->hw_info.upper_pcb_ver);
}
len += snprintf((page + len), (count - len), "HIO %d Device:\t%s\n", idx, dev->name);
}
return len;
}
#else
static int ssd_proc_show(struct seq_file *m, void *v)
{
struct ssd_device *dev = NULL;
struct ssd_device *n = NULL;
uint64_t size;
int idx;
if (ssd_exiting) {
return 0;
}
seq_printf(m, "Driver Version:\t%s\n", DRIVER_VERSION);
list_for_each_entry_safe(dev, n, &ssd_list, list) {
idx = dev->idx + 1;
size = dev->hw_info.size ;
do_div(size, 1000000000);
seq_printf(m, "\n");
seq_printf(m, "HIO %d Size:\t%uGB\n", idx, (uint32_t)size);
seq_printf(m, "HIO %d Bridge FW VER:\t%03X\n", idx, dev->hw_info.bridge_ver);
if (dev->hw_info.ctrl_ver != 0) {
seq_printf(m, "HIO %d Controller FW VER:\t%03X\n", idx, dev->hw_info.ctrl_ver);
}
seq_printf(m, "HIO %d PCB VER:\t.%c\n", idx, dev->hw_info.pcb_ver);
if (dev->hw_info.upper_pcb_ver >= 'A') {
seq_printf(m, "HIO %d Upper PCB VER:\t.%c\n", idx, dev->hw_info.upper_pcb_ver);
}
seq_printf(m, "HIO %d Device:\t%s\n", idx, dev->name);
}
return 0;
}
static int ssd_proc_open(struct inode *inode, struct file *file)
{
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(3,9,0))
return single_open(file, ssd_proc_show, PDE(inode)->data);
#else
return single_open(file, ssd_proc_show, PDE_DATA(inode));
#endif
}
static const struct file_operations ssd_proc_fops = {
.open = ssd_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif
static void ssd_cleanup_proc(void)
{
if (ssd_proc_info) {
remove_proc_entry(SSD_PROC_INFO, ssd_proc_dir);
ssd_proc_info = NULL;
}
if (ssd_proc_dir) {
remove_proc_entry(SSD_PROC_DIR, NULL);
ssd_proc_dir = NULL;
}
}
static int ssd_init_proc(void)
{
ssd_proc_dir = proc_mkdir(SSD_PROC_DIR, NULL);
if (!ssd_proc_dir)
goto out_proc_mkdir;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0))
ssd_proc_info = create_proc_entry(SSD_PROC_INFO, S_IFREG | S_IRUGO | S_IWUSR, ssd_proc_dir);
if (!ssd_proc_info)
goto out_create_proc_entry;
ssd_proc_info->read_proc = ssd_proc_read;
/* kernel bug */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30))
ssd_proc_info->owner = THIS_MODULE;
#endif
#else
ssd_proc_info = proc_create(SSD_PROC_INFO, 0600, ssd_proc_dir, &ssd_proc_fops);
if (!ssd_proc_info)
goto out_create_proc_entry;
#endif
return 0;
out_create_proc_entry:
remove_proc_entry(SSD_PROC_DIR, NULL);
out_proc_mkdir:
return -ENOMEM;
}
#else
static void ssd_cleanup_proc(void)
{
return;
}
static int ssd_init_proc(void)
{
return 0;
}
#endif /* CONFIG_PROC_FS */
/* sysfs */
static void ssd_unregister_sysfs(struct ssd_device *dev)
{
return;
}
static int ssd_register_sysfs(struct ssd_device *dev)
{
return 0;
}
static void ssd_cleanup_sysfs(void)
{
return;
}
static int ssd_init_sysfs(void)
{
return 0;
}
static inline void ssd_put_index(int slave, int index)
{
unsigned long *index_bits = ssd_index_bits;
if (slave) {
index_bits = ssd_index_bits_sl;
}
if (test_and_clear_bit(index, index_bits)) {
atomic_dec(&ssd_nr);
}
}
static inline int ssd_get_index(int slave)
{
unsigned long *index_bits = ssd_index_bits;
int index;
if (slave) {
index_bits = ssd_index_bits_sl;
}
find_index:
if ((index = find_first_zero_bit(index_bits, SSD_MAX_DEV)) >= SSD_MAX_DEV) {
return -1;
}
if (test_and_set_bit(index, index_bits)) {
goto find_index;
}
atomic_inc(&ssd_nr);
return index;
}
static void ssd_cleanup_index(void)
{
return;
}
static int ssd_init_index(void)
{
INIT_LIST_HEAD(&ssd_list);
atomic_set(&ssd_nr, 0);
memset(ssd_index_bits, 0, (SSD_MAX_DEV / BITS_PER_LONG + 1));
memset(ssd_index_bits_sl, 0, (SSD_MAX_DEV / BITS_PER_LONG + 1));
return 0;
}
static void ssd_set_dev_name(char *name, size_t size, int idx)
{
if(idx < SSD_ALPHABET_NUM) {
snprintf(name, size, "%c", 'a'+idx);
} else {
idx -= SSD_ALPHABET_NUM;
snprintf(name, size, "%c%c", 'a'+(idx/SSD_ALPHABET_NUM), 'a'+(idx%SSD_ALPHABET_NUM));
}
}
/* pci register r&w */
static inline void ssd_reg_write(void *addr, uint64_t val)
{
iowrite32((uint32_t)val, addr);
iowrite32((uint32_t)(val >> 32), addr + 4);
wmb();
}
static inline uint64_t ssd_reg_read(void *addr)
{
uint64_t val;
uint32_t val_lo, val_hi;
val_lo = ioread32(addr);
val_hi = ioread32(addr + 4);
rmb();
val = val_lo | ((uint64_t)val_hi << 32);
return val;
}
#define ssd_reg32_write(addr, val) writel(val, addr)
#define ssd_reg32_read(addr) readl(addr)
/* alarm led */
static void ssd_clear_alarm(struct ssd_device *dev)
{
uint32_t val;
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
return;
}
val = ssd_reg32_read(dev->ctrlp + SSD_LED_REG);
/* firmware control */
val &= ~0x2;
ssd_reg32_write(dev->ctrlp + SSD_LED_REG, val);
}
static void ssd_set_alarm(struct ssd_device *dev)
{
uint32_t val;
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
return;
}
val = ssd_reg32_read(dev->ctrlp + SSD_LED_REG);
/* light up */
val &= ~0x1;
/* software control */
val |= 0x2;
ssd_reg32_write(dev->ctrlp + SSD_LED_REG, val);
}
#define u32_swap(x) \
((uint32_t)( \
(((uint32_t)(x) & (uint32_t)0x000000ffUL) << 24) | \
(((uint32_t)(x) & (uint32_t)0x0000ff00UL) << 8) | \
(((uint32_t)(x) & (uint32_t)0x00ff0000UL) >> 8) | \
(((uint32_t)(x) & (uint32_t)0xff000000UL) >> 24)))
#define u16_swap(x) \
((uint16_t)( \
(((uint16_t)(x) & (uint16_t)0x00ff) << 8) | \
(((uint16_t)(x) & (uint16_t)0xff00) >> 8) ))
#if 0
/* No lock, for init only*/
static int ssd_spi_read_id(struct ssd_device *dev, uint32_t *id)
{
uint32_t val;
unsigned long st;
int ret = 0;
if (!dev || !id) {
return -EINVAL;
}
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_READ_ID);
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
st = jiffies;
for (;;) {
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
if (val == 0x1000000) {
break;
}
if (time_after(jiffies, (st + SSD_SPI_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out;
}
cond_resched();
}
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_ID);
*id = val;
out:
return ret;
}
#endif
/* spi access */
static int ssd_init_spi(struct ssd_device *dev)
{
uint32_t val;
unsigned long st;
int ret = 0;
mutex_lock(&dev->spi_mutex);
st = jiffies;
for(;;) {
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_READ_STATUS);
do {
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
if (time_after(jiffies, (st + SSD_SPI_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out;
}
cond_resched();
} while (val != 0x1000000);
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_STATUS);
if (!(val & 0x1)) {
break;
}
if (time_after(jiffies, (st + SSD_SPI_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out;
}
cond_resched();
}
out:
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
if (val & 0x1) {
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_CLSR);
}
}
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_W_DISABLE);
mutex_unlock(&dev->spi_mutex);
ret = 0;
return ret;
}
static int ssd_spi_page_read(struct ssd_device *dev, void *buf, uint32_t off, uint32_t size)
{
uint32_t val;
uint32_t rlen = 0;
unsigned long st;
int ret = 0;
if (!dev || !buf) {
return -EINVAL;
}
if ((off % sizeof(uint32_t)) != 0 || (size % sizeof(uint32_t)) != 0 || size == 0 ||
((uint64_t)off + (uint64_t)size) > dev->rom_info.size || size > dev->rom_info.page_size) {
return -EINVAL;
}
mutex_lock(&dev->spi_mutex);
while (rlen < size) {
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD_HI, ((off + rlen) >> 24));
wmb();
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, (((off + rlen) << 8) | SSD_SPI_CMD_READ));
(void)ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
(void)ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
(void)ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
(void)ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
st = jiffies;
for (;;) {
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
if (val == 0x1000000) {
break;
}
if (time_after(jiffies, (st + SSD_SPI_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out;
}
cond_resched();
}
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_RDATA);
*(uint32_t *)(buf + rlen)= u32_swap(val);
rlen += sizeof(uint32_t);
}
out:
mutex_unlock(&dev->spi_mutex);
return ret;
}
static int ssd_spi_page_write(struct ssd_device *dev, void *buf, uint32_t off, uint32_t size)
{
uint32_t val;
uint32_t wlen;
unsigned long st;
int i;
int ret = 0;
if (!dev || !buf) {
return -EINVAL;
}
if ((off % sizeof(uint32_t)) != 0 || (size % sizeof(uint32_t)) != 0 || size == 0 ||
((uint64_t)off + (uint64_t)size) > dev->rom_info.size || size > dev->rom_info.page_size ||
(off / dev->rom_info.page_size) != ((off + size - 1) / dev->rom_info.page_size)) {
return -EINVAL;
}
mutex_lock(&dev->spi_mutex);
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_W_ENABLE);
wlen = size / sizeof(uint32_t);
for (i=0; i<(int)wlen; i++) {
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_WDATA, u32_swap(*((uint32_t *)buf + i)));
}
wmb();
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD_HI, (off >> 24));
wmb();
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, ((off << 8) | SSD_SPI_CMD_PROGRAM));
udelay(1);
st = jiffies;
for (;;) {
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_READ_STATUS);
do {
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
if (time_after(jiffies, (st + SSD_SPI_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out;
}
cond_resched();
} while (val != 0x1000000);
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_STATUS);
if (!(val & 0x1)) {
break;
}
if (time_after(jiffies, (st + SSD_SPI_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out;
}
cond_resched();
}
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
if ((val >> 6) & 0x1) {
ret = -EIO;
goto out;
}
}
out:
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
if (val & 0x1) {
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_CLSR);
}
}
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_W_DISABLE);
mutex_unlock(&dev->spi_mutex);
return ret;
}
static int ssd_spi_block_erase(struct ssd_device *dev, uint32_t off)
{
uint32_t val;
unsigned long st;
int ret = 0;
if (!dev) {
return -EINVAL;
}
if ((off % dev->rom_info.block_size) != 0 || off >= dev->rom_info.size) {
return -EINVAL;
}
mutex_lock(&dev->spi_mutex);
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_W_ENABLE);
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_W_ENABLE);
wmb();
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD_HI, (off >> 24));
wmb();
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, ((off << 8) | SSD_SPI_CMD_ERASE));
st = jiffies;
for (;;) {
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_READ_STATUS);
do {
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_READY);
if (time_after(jiffies, (st + SSD_SPI_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out;
}
cond_resched();
} while (val != 0x1000000);
val = ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_STATUS);
if (!(val & 0x1)) {
break;
}
if (time_after(jiffies, (st + SSD_SPI_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out;
}
cond_resched();
}
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
if ((val >> 5) & 0x1) {
ret = -EIO;
goto out;
}
}
out:
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
if (val & 0x1) {
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_CLSR);
}
}
ssd_reg32_write(dev->ctrlp + SSD_SPI_REG_CMD, SSD_SPI_CMD_W_DISABLE);
mutex_unlock(&dev->spi_mutex);
return ret;
}
static int ssd_spi_read(struct ssd_device *dev, void *buf, uint32_t off, uint32_t size)
{
uint32_t len = 0;
uint32_t roff;
uint32_t rsize;
int ret = 0;
if (!dev || !buf) {
return -EINVAL;
}
if ((off % sizeof(uint32_t)) != 0 || (size % sizeof(uint32_t)) != 0 || size == 0 ||
((uint64_t)off + (uint64_t)size) > dev->rom_info.size) {
return -EINVAL;
}
while (len < size) {
roff = (off + len) % dev->rom_info.page_size;
rsize = dev->rom_info.page_size - roff;
if ((size - len) < rsize) {
rsize = (size - len);
}
roff = off + len;
ret = ssd_spi_page_read(dev, (buf + len), roff, rsize);
if (ret) {
goto out;
}
len += rsize;
cond_resched();
}
out:
return ret;
}
static int ssd_spi_write(struct ssd_device *dev, void *buf, uint32_t off, uint32_t size)
{
uint32_t len = 0;
uint32_t woff;
uint32_t wsize;
int ret = 0;
if (!dev || !buf) {
return -EINVAL;
}
if ((off % sizeof(uint32_t)) != 0 || (size % sizeof(uint32_t)) != 0 || size == 0 ||
((uint64_t)off + (uint64_t)size) > dev->rom_info.size) {
return -EINVAL;
}
while (len < size) {
woff = (off + len) % dev->rom_info.page_size;
wsize = dev->rom_info.page_size - woff;
if ((size - len) < wsize) {
wsize = (size - len);
}
woff = off + len;
ret = ssd_spi_page_write(dev, (buf + len), woff, wsize);
if (ret) {
goto out;
}
len += wsize;
cond_resched();
}
out:
return ret;
}
static int ssd_spi_erase(struct ssd_device *dev, uint32_t off, uint32_t size)
{
uint32_t len = 0;
uint32_t eoff;
int ret = 0;
if (!dev) {
return -EINVAL;
}
if (size == 0 || ((uint64_t)off + (uint64_t)size) > dev->rom_info.size ||
(off % dev->rom_info.block_size) != 0 || (size % dev->rom_info.block_size) != 0) {
return -EINVAL;
}
while (len < size) {
eoff = (off + len);
ret = ssd_spi_block_erase(dev, eoff);
if (ret) {
goto out;
}
len += dev->rom_info.block_size;
cond_resched();
}
out:
return ret;
}
/* i2c access */
static uint32_t __ssd_i2c_reg32_read(void *addr)
{
return ssd_reg32_read(addr);
}
static void __ssd_i2c_reg32_write(void *addr, uint32_t val)
{
ssd_reg32_write(addr, val);
ssd_reg32_read(addr);
}
static int __ssd_i2c_clear(struct ssd_device *dev, uint8_t saddr)
{
ssd_i2c_ctrl_t ctrl;
ssd_i2c_data_t data;
uint8_t status = 0;
int nr_data = 0;
unsigned long st;
int ret = 0;
check_status:
ctrl.bits.wdata = 0;
ctrl.bits.addr = SSD_I2C_STATUS_REG;
ctrl.bits.rw = SSD_I2C_CTRL_READ;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
st = jiffies;
for (;;) {
data.val = __ssd_i2c_reg32_read(dev->ctrlp + SSD_I2C_RDATA_REG);
if (data.bits.valid == 0) {
break;
}
/* retry */
if (time_after(jiffies, (st + SSD_I2C_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out;
}
cond_resched();
}
status = data.bits.rdata;
if (!(status & 0x4)) {
/* clear read fifo data */
ctrl.bits.wdata = 0;
ctrl.bits.addr = SSD_I2C_DATA_REG;
ctrl.bits.rw = SSD_I2C_CTRL_READ;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
st = jiffies;
for (;;) {
data.val = __ssd_i2c_reg32_read(dev->ctrlp + SSD_I2C_RDATA_REG);
if (data.bits.valid == 0) {
break;
}
/* retry */
if (time_after(jiffies, (st + SSD_I2C_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out;
}
cond_resched();
}
nr_data++;
if (nr_data <= SSD_I2C_MAX_DATA) {
goto check_status;
} else {
goto out_reset;
}
}
if (status & 0x3) {
/* clear int */
ctrl.bits.wdata = 0x04;
ctrl.bits.addr = SSD_I2C_CMD_REG;
ctrl.bits.rw = SSD_I2C_CTRL_WRITE;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
}
if (!(status & 0x8)) {
out_reset:
/* reset i2c controller */
ctrl.bits.wdata = 0x0;
ctrl.bits.addr = SSD_I2C_RESET_REG;
ctrl.bits.rw = SSD_I2C_CTRL_WRITE;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
}
out:
return ret;
}
static int ssd_i2c_write(struct ssd_device *dev, uint8_t saddr, uint8_t size, uint8_t *buf)
{
ssd_i2c_ctrl_t ctrl;
ssd_i2c_data_t data;
uint8_t off = 0;
uint8_t status = 0;
unsigned long st;
int ret = 0;
mutex_lock(&dev->i2c_mutex);
ctrl.val = 0;
/* slave addr */
ctrl.bits.wdata = saddr;
ctrl.bits.addr = SSD_I2C_SADDR_REG;
ctrl.bits.rw = SSD_I2C_CTRL_WRITE;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
/* data */
while (off < size) {
ctrl.bits.wdata = buf[off];
ctrl.bits.addr = SSD_I2C_DATA_REG;
ctrl.bits.rw = SSD_I2C_CTRL_WRITE;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
off++;
}
/* write */
ctrl.bits.wdata = 0x01;
ctrl.bits.addr = SSD_I2C_CMD_REG;
ctrl.bits.rw = SSD_I2C_CTRL_WRITE;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
/* wait */
st = jiffies;
for (;;) {
ctrl.bits.wdata = 0;
ctrl.bits.addr = SSD_I2C_STATUS_REG;
ctrl.bits.rw = SSD_I2C_CTRL_READ;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
for (;;) {
data.val = __ssd_i2c_reg32_read(dev->ctrlp + SSD_I2C_RDATA_REG);
if (data.bits.valid == 0) {
break;
}
/* retry */
if (time_after(jiffies, (st + SSD_I2C_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out_clear;
}
cond_resched();
}
status = data.bits.rdata;
if (status & 0x1) {
break;
}
if (time_after(jiffies, (st + SSD_I2C_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out_clear;
}
cond_resched();
}
if (!(status & 0x1)) {
ret = -1;
goto out_clear;
}
/* busy ? */
if (status & 0x20) {
ret = -2;
goto out_clear;
}
/* ack ? */
if (status & 0x10) {
ret = -3;
goto out_clear;
}
/* clear */
out_clear:
if (__ssd_i2c_clear(dev, saddr)) {
if (!ret) ret = -4;
}
mutex_unlock(&dev->i2c_mutex);
return ret;
}
static int ssd_i2c_read(struct ssd_device *dev, uint8_t saddr, uint8_t size, uint8_t *buf)
{
ssd_i2c_ctrl_t ctrl;
ssd_i2c_data_t data;
uint8_t off = 0;
uint8_t status = 0;
unsigned long st;
int ret = 0;
mutex_lock(&dev->i2c_mutex);
ctrl.val = 0;
/* slave addr */
ctrl.bits.wdata = saddr;
ctrl.bits.addr = SSD_I2C_SADDR_REG;
ctrl.bits.rw = SSD_I2C_CTRL_WRITE;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
/* read len */
ctrl.bits.wdata = size;
ctrl.bits.addr = SSD_I2C_LEN_REG;
ctrl.bits.rw = SSD_I2C_CTRL_WRITE;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
/* read */
ctrl.bits.wdata = 0x02;
ctrl.bits.addr = SSD_I2C_CMD_REG;
ctrl.bits.rw = SSD_I2C_CTRL_WRITE;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
/* wait */
st = jiffies;
for (;;) {
ctrl.bits.wdata = 0;
ctrl.bits.addr = SSD_I2C_STATUS_REG;
ctrl.bits.rw = SSD_I2C_CTRL_READ;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
for (;;) {
data.val = __ssd_i2c_reg32_read(dev->ctrlp + SSD_I2C_RDATA_REG);
if (data.bits.valid == 0) {
break;
}
/* retry */
if (time_after(jiffies, (st + SSD_I2C_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out_clear;
}
cond_resched();
}
status = data.bits.rdata;
if (status & 0x2) {
break;
}
if (time_after(jiffies, (st + SSD_I2C_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out_clear;
}
cond_resched();
}
if (!(status & 0x2)) {
ret = -1;
goto out_clear;
}
/* busy ? */
if (status & 0x20) {
ret = -2;
goto out_clear;
}
/* ack ? */
if (status & 0x10) {
ret = -3;
goto out_clear;
}
/* data */
while (off < size) {
ctrl.bits.wdata = 0;
ctrl.bits.addr = SSD_I2C_DATA_REG;
ctrl.bits.rw = SSD_I2C_CTRL_READ;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
st = jiffies;
for (;;) {
data.val = __ssd_i2c_reg32_read(dev->ctrlp + SSD_I2C_RDATA_REG);
if (data.bits.valid == 0) {
break;
}
/* retry */
if (time_after(jiffies, (st + SSD_I2C_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out_clear;
}
cond_resched();
}
buf[off] = data.bits.rdata;
off++;
}
/* clear */
out_clear:
if (__ssd_i2c_clear(dev, saddr)) {
if (!ret) ret = -4;
}
mutex_unlock(&dev->i2c_mutex);
return ret;
}
static int ssd_i2c_write_read(struct ssd_device *dev, uint8_t saddr, uint8_t wsize, uint8_t *wbuf, uint8_t rsize, uint8_t *rbuf)
{
ssd_i2c_ctrl_t ctrl;
ssd_i2c_data_t data;
uint8_t off = 0;
uint8_t status = 0;
unsigned long st;
int ret = 0;
mutex_lock(&dev->i2c_mutex);
ctrl.val = 0;
/* slave addr */
ctrl.bits.wdata = saddr;
ctrl.bits.addr = SSD_I2C_SADDR_REG;
ctrl.bits.rw = SSD_I2C_CTRL_WRITE;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
/* data */
off = 0;
while (off < wsize) {
ctrl.bits.wdata = wbuf[off];
ctrl.bits.addr = SSD_I2C_DATA_REG;
ctrl.bits.rw = SSD_I2C_CTRL_WRITE;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
off++;
}
/* read len */
ctrl.bits.wdata = rsize;
ctrl.bits.addr = SSD_I2C_LEN_REG;
ctrl.bits.rw = SSD_I2C_CTRL_WRITE;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
/* write -> read */
ctrl.bits.wdata = 0x03;
ctrl.bits.addr = SSD_I2C_CMD_REG;
ctrl.bits.rw = SSD_I2C_CTRL_WRITE;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
/* wait */
st = jiffies;
for (;;) {
ctrl.bits.wdata = 0;
ctrl.bits.addr = SSD_I2C_STATUS_REG;
ctrl.bits.rw = SSD_I2C_CTRL_READ;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
for (;;) {
data.val = __ssd_i2c_reg32_read(dev->ctrlp + SSD_I2C_RDATA_REG);
if (data.bits.valid == 0) {
break;
}
/* retry */
if (time_after(jiffies, (st + SSD_I2C_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out_clear;
}
cond_resched();
}
status = data.bits.rdata;
if (status & 0x2) {
break;
}
if (time_after(jiffies, (st + SSD_I2C_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out_clear;
}
cond_resched();
}
if (!(status & 0x2)) {
ret = -1;
goto out_clear;
}
/* busy ? */
if (status & 0x20) {
ret = -2;
goto out_clear;
}
/* ack ? */
if (status & 0x10) {
ret = -3;
goto out_clear;
}
/* data */
off = 0;
while (off < rsize) {
ctrl.bits.wdata = 0;
ctrl.bits.addr = SSD_I2C_DATA_REG;
ctrl.bits.rw = SSD_I2C_CTRL_READ;
__ssd_i2c_reg32_write(dev->ctrlp + SSD_I2C_CTRL_REG, ctrl.val);
st = jiffies;
for (;;) {
data.val = __ssd_i2c_reg32_read(dev->ctrlp + SSD_I2C_RDATA_REG);
if (data.bits.valid == 0) {
break;
}
/* retry */
if (time_after(jiffies, (st + SSD_I2C_TIMEOUT))) {
ret = -ETIMEDOUT;
goto out_clear;
}
cond_resched();
}
rbuf[off] = data.bits.rdata;
off++;
}
/* clear */
out_clear:
if (__ssd_i2c_clear(dev, saddr)) {
if (!ret) ret = -4;
}
mutex_unlock(&dev->i2c_mutex);
return ret;
}
static int ssd_smbus_send_byte(struct ssd_device *dev, uint8_t saddr, uint8_t *buf)
{
int i = 0;
int ret = 0;
for (;;) {
ret = ssd_i2c_write(dev, saddr, 1, buf);
if (!ret || -ETIMEDOUT == ret) {
break;
}
i++;
if (i >= SSD_SMBUS_RETRY_MAX) {
break;
}
msleep(SSD_SMBUS_RETRY_INTERVAL);
}
return ret;
}
static int ssd_smbus_receive_byte(struct ssd_device *dev, uint8_t saddr, uint8_t *buf)
{
int i = 0;
int ret = 0;
for (;;) {
ret = ssd_i2c_read(dev, saddr, 1, buf);
if (!ret || -ETIMEDOUT == ret) {
break;
}
i++;
if (i >= SSD_SMBUS_RETRY_MAX) {
break;
}
msleep(SSD_SMBUS_RETRY_INTERVAL);
}
return ret;
}
static int ssd_smbus_write_byte(struct ssd_device *dev, uint8_t saddr, uint8_t cmd, uint8_t *buf)
{
uint8_t smb_data[SSD_SMBUS_DATA_MAX] = {0};
int i = 0;
int ret = 0;
smb_data[0] = cmd;
memcpy((smb_data + 1), buf, 1);
for (;;) {
ret = ssd_i2c_write(dev, saddr, 2, smb_data);
if (!ret || -ETIMEDOUT == ret) {
break;
}
i++;
if (i >= SSD_SMBUS_RETRY_MAX) {
break;
}
msleep(SSD_SMBUS_RETRY_INTERVAL);
}
return ret;
}
static int ssd_smbus_read_byte(struct ssd_device *dev, uint8_t saddr, uint8_t cmd, uint8_t *buf)
{
uint8_t smb_data[SSD_SMBUS_DATA_MAX] = {0};
int i = 0;
int ret = 0;
smb_data[0] = cmd;
for (;;) {
ret = ssd_i2c_write_read(dev, saddr, 1, smb_data, 1, buf);
if (!ret || -ETIMEDOUT == ret) {
break;
}
i++;
if (i >= SSD_SMBUS_RETRY_MAX) {
break;
}
msleep(SSD_SMBUS_RETRY_INTERVAL);
}
return ret;
}
static int ssd_smbus_write_word(struct ssd_device *dev, uint8_t saddr, uint8_t cmd, uint8_t *buf)
{
uint8_t smb_data[SSD_SMBUS_DATA_MAX] = {0};
int i = 0;
int ret = 0;
smb_data[0] = cmd;
memcpy((smb_data + 1), buf, 2);
for (;;) {
ret = ssd_i2c_write(dev, saddr, 3, smb_data);
if (!ret || -ETIMEDOUT == ret) {
break;
}
i++;
if (i >= SSD_SMBUS_RETRY_MAX) {
break;
}
msleep(SSD_SMBUS_RETRY_INTERVAL);
}
return ret;
}
static int ssd_smbus_read_word(struct ssd_device *dev, uint8_t saddr, uint8_t cmd, uint8_t *buf)
{
uint8_t smb_data[SSD_SMBUS_DATA_MAX] = {0};
int i = 0;
int ret = 0;
smb_data[0] = cmd;
for (;;) {
ret = ssd_i2c_write_read(dev, saddr, 1, smb_data, 2, buf);
if (!ret || -ETIMEDOUT == ret) {
break;
}
i++;
if (i >= SSD_SMBUS_RETRY_MAX) {
break;
}
msleep(SSD_SMBUS_RETRY_INTERVAL);
}
return ret;
}
static int ssd_smbus_write_block(struct ssd_device *dev, uint8_t saddr, uint8_t cmd, uint8_t size, uint8_t *buf)
{
uint8_t smb_data[SSD_SMBUS_DATA_MAX] = {0};
int i = 0;
int ret = 0;
smb_data[0] = cmd;
smb_data[1] = size;
memcpy((smb_data + 2), buf, size);
for (;;) {
ret = ssd_i2c_write(dev, saddr, (2 + size), smb_data);
if (!ret || -ETIMEDOUT == ret) {
break;
}
i++;
if (i >= SSD_SMBUS_RETRY_MAX) {
break;
}
msleep(SSD_SMBUS_RETRY_INTERVAL);
}
return ret;
}
static int ssd_smbus_read_block(struct ssd_device *dev, uint8_t saddr, uint8_t cmd, uint8_t size, uint8_t *buf)
{
uint8_t smb_data[SSD_SMBUS_DATA_MAX] = {0};
uint8_t rsize;
int i = 0;
int ret = 0;
smb_data[0] = cmd;
for (;;) {
ret = ssd_i2c_write_read(dev, saddr, 1, smb_data, (SSD_SMBUS_BLOCK_MAX + 1), (smb_data + 1));
if (!ret || -ETIMEDOUT == ret) {
break;
}
i++;
if (i >= SSD_SMBUS_RETRY_MAX) {
break;
}
msleep(SSD_SMBUS_RETRY_INTERVAL);
}
if (ret) {
return ret;
}
rsize = smb_data[1];
if (rsize > size ) {
rsize = size;
}
memcpy(buf, (smb_data + 2), rsize);
return 0;
}
static int ssd_gen_swlog(struct ssd_device *dev, uint16_t event, uint32_t data);
/* sensor */
static int ssd_init_lm75(struct ssd_device *dev, uint8_t saddr)
{
uint8_t conf = 0;
int ret = 0;
ret = ssd_smbus_read_byte(dev, saddr, SSD_LM75_REG_CONF, &conf);
if (ret) {
goto out;
}
conf &= (uint8_t)(~1u);
ret = ssd_smbus_write_byte(dev, saddr, SSD_LM75_REG_CONF, &conf);
if (ret) {
goto out;
}
out:
return ret;
}
static int ssd_lm75_read(struct ssd_device *dev, uint8_t saddr, uint16_t *data)
{
uint16_t val = 0;
int ret;
ret = ssd_smbus_read_word(dev, saddr, SSD_LM75_REG_TEMP, (uint8_t *)&val);
if (ret) {
return ret;
}
*data = u16_swap(val);
return 0;
}
static int ssd_init_lm80(struct ssd_device *dev, uint8_t saddr)
{
uint8_t val;
uint8_t low, high;
int i;
int ret = 0;
/* init */
val = 0x80;
ret = ssd_smbus_write_byte(dev, saddr, SSD_LM80_REG_CONFIG, &val);
if (ret) {
goto out;
}
/* 11-bit temp */
val = 0x08;
ret = ssd_smbus_write_byte(dev, saddr, SSD_LM80_REG_RES, &val);
if (ret) {
goto out;
}
/* set volt limit */
for (i=0; i<SSD_LM80_IN_NR; i++) {
high = ssd_lm80_limit[i].high;
low = ssd_lm80_limit[i].low;
if (SSD_LM80_IN_CAP == i) {
low = 0;
}
if (dev->hw_info.nr_ctrl <= 1 && SSD_LM80_IN_1V2 == i) {
high = 0xFF;
low = 0;
}
/* high limit */
ret = ssd_smbus_write_byte(dev, saddr, SSD_LM80_REG_IN_MAX(i), &high);
if (ret) {
goto out;
}
/* low limit*/
ret = ssd_smbus_write_byte(dev, saddr, SSD_LM80_REG_IN_MIN(i), &low);
if (ret) {
goto out;
}
}
/* set interrupt mask: allow volt in interrupt except cap in*/
val = 0x81;
ret = ssd_smbus_write_byte(dev, saddr, SSD_LM80_REG_MASK1, &val);
if (ret) {
goto out;
}
/* set interrupt mask: disable others */
val = 0xFF;
ret = ssd_smbus_write_byte(dev, saddr, SSD_LM80_REG_MASK2, &val);
if (ret) {
goto out;
}
/* start */
val = 0x03;
ret = ssd_smbus_write_byte(dev, saddr, SSD_LM80_REG_CONFIG, &val);
if (ret) {
goto out;
}
out:
return ret;
}
static int ssd_lm80_enable_in(struct ssd_device *dev, uint8_t saddr, int idx)
{
uint8_t val = 0;
int ret = 0;
if (idx >= SSD_LM80_IN_NR || idx < 0) {
return -EINVAL;
}
ret = ssd_smbus_read_byte(dev, saddr, SSD_LM80_REG_MASK1, &val);
if (ret) {
goto out;
}
val &= ~(1UL << (uint32_t)idx);
ret = ssd_smbus_write_byte(dev, saddr, SSD_LM80_REG_MASK1, &val);
if (ret) {
goto out;
}
out:
return ret;
}
static int ssd_lm80_disable_in(struct ssd_device *dev, uint8_t saddr, int idx)
{
uint8_t val = 0;
int ret = 0;
if (idx >= SSD_LM80_IN_NR || idx < 0) {
return -EINVAL;
}
ret = ssd_smbus_read_byte(dev, saddr, SSD_LM80_REG_MASK1, &val);
if (ret) {
goto out;
}
val |= (1UL << (uint32_t)idx);
ret = ssd_smbus_write_byte(dev, saddr, SSD_LM80_REG_MASK1, &val);
if (ret) {
goto out;
}
out:
return ret;
}
static int ssd_lm80_read_temp(struct ssd_device *dev, uint8_t saddr, uint16_t *data)
{
uint16_t val = 0;
int ret;
ret = ssd_smbus_read_word(dev, saddr, SSD_LM80_REG_TEMP, (uint8_t *)&val);
if (ret) {
return ret;
}
*data = u16_swap(val);
return 0;
}
static int ssd_lm80_check_event(struct ssd_device *dev, uint8_t saddr)
{
uint32_t volt;
uint16_t val = 0, status;
uint8_t alarm1 = 0, alarm2 = 0;
int i;
int ret = 0;
/* read interrupt status to clear interrupt */
ret = ssd_smbus_read_byte(dev, saddr, SSD_LM80_REG_ALARM1, &alarm1);
if (ret) {
goto out;
}
ret = ssd_smbus_read_byte(dev, saddr, SSD_LM80_REG_ALARM2, &alarm2);
if (ret) {
goto out;
}
status = (uint16_t)alarm1 | ((uint16_t)alarm2 << 8);
/* parse inetrrupt status */
for (i=0; i<SSD_LM80_IN_NR; i++) {
if (!((status >> (uint32_t)i) & 0x1)) {
if (test_and_clear_bit(SSD_HWMON_LM80(i), &dev->hwmon)) {
/* enable INx irq */
ret = ssd_lm80_enable_in(dev, saddr, i);
if (ret) {
goto out;
}
}
continue;
}
/* disable INx irq */
ret = ssd_lm80_disable_in(dev, saddr, i);
if (ret) {
goto out;
}
if (test_and_set_bit(SSD_HWMON_LM80(i), &dev->hwmon)) {
continue;
}
ret = ssd_smbus_read_word(dev, saddr, SSD_LM80_REG_IN(i), (uint8_t *)&val);
if (ret) {
goto out;
}
volt = SSD_LM80_CONVERT_VOLT(u16_swap(val));
switch (i) {
case SSD_LM80_IN_CAP: {
if (0 == volt) {
ssd_gen_swlog(dev, SSD_LOG_CAP_SHORT_CIRCUIT, 0);
} else {
ssd_gen_swlog(dev, SSD_LOG_CAP_VOLT_FAULT, SSD_PL_CAP_VOLT(volt));
}
break;
}
case SSD_LM80_IN_1V2:
case SSD_LM80_IN_1V2a:
case SSD_LM80_IN_1V5:
case SSD_LM80_IN_1V8: {
ssd_gen_swlog(dev, SSD_LOG_VOLT_STATUS, SSD_VOLT_LOG_DATA(i, 0, volt));
break;
}
case SSD_LM80_IN_FPGA_3V3:
case SSD_LM80_IN_3V3: {
ssd_gen_swlog(dev, SSD_LOG_VOLT_STATUS, SSD_VOLT_LOG_DATA(i, 0, SSD_LM80_3V3_VOLT(volt)));
break;
}
default:
break;
}
}
out:
if (ret) {
if (!test_and_set_bit(SSD_HWMON_SENSOR(SSD_SENSOR_LM80), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_SENSOR_FAULT, (uint32_t)saddr);
}
} else {
test_and_clear_bit(SSD_HWMON_SENSOR(SSD_SENSOR_LM80), &dev->hwmon);
}
return ret;
}
static int ssd_init_sensor(struct ssd_device *dev)
{
int ret = 0;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
goto out;
}
ret = ssd_init_lm75(dev, SSD_SENSOR_LM75_SADDRESS);
if (ret) {
hio_warn("%s: init lm75 failed\n", dev->name);
if (!test_and_set_bit(SSD_HWMON_SENSOR(SSD_SENSOR_LM75), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_SENSOR_FAULT, SSD_SENSOR_LM75_SADDRESS);
}
goto out;
}
if (dev->hw_info.pcb_ver >= 'B' || dev->hw_info_ext.form_factor == SSD_FORM_FACTOR_HHHL) {
ret = ssd_init_lm80(dev, SSD_SENSOR_LM80_SADDRESS);
if (ret) {
hio_warn("%s: init lm80 failed\n", dev->name);
if (!test_and_set_bit(SSD_HWMON_SENSOR(SSD_SENSOR_LM80), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_SENSOR_FAULT, SSD_SENSOR_LM80_SADDRESS);
}
goto out;
}
}
out:
/* skip error if not in standard mode */
if (mode != SSD_DRV_MODE_STANDARD) {
ret = 0;
}
return ret;
}
/* board volt */
static int ssd_mon_boardvolt(struct ssd_device *dev)
{
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
return 0;
}
if (dev->hw_info_ext.form_factor == SSD_FORM_FACTOR_FHHL && dev->hw_info.pcb_ver < 'B') {
return 0;
}
return ssd_lm80_check_event(dev, SSD_SENSOR_LM80_SADDRESS);
}
/* temperature */
static int ssd_mon_temp(struct ssd_device *dev)
{
int cur;
uint16_t val = 0;
int ret = 0;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
return 0;
}
if (dev->hw_info_ext.form_factor == SSD_FORM_FACTOR_FHHL && dev->hw_info.pcb_ver < 'B') {
return 0;
}
/* inlet */
ret = ssd_lm80_read_temp(dev, SSD_SENSOR_LM80_SADDRESS, &val);
if (ret) {
if (!test_and_set_bit(SSD_HWMON_SENSOR(SSD_SENSOR_LM80), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_SENSOR_FAULT, SSD_SENSOR_LM80_SADDRESS);
}
goto out;
}
test_and_clear_bit(SSD_HWMON_SENSOR(SSD_SENSOR_LM80), &dev->hwmon);
cur = SSD_SENSOR_CONVERT_TEMP(val);
if (cur >= SSD_INLET_OT_TEMP) {
if (!test_and_set_bit(SSD_HWMON_TEMP(SSD_TEMP_INLET), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_INLET_OVER_TEMP, (uint32_t)cur);
}
} else if(cur < SSD_INLET_OT_HYST) {
if (test_and_clear_bit(SSD_HWMON_TEMP(SSD_TEMP_INLET), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_INLET_NORMAL_TEMP, (uint32_t)cur);
}
}
/* flash */
ret = ssd_lm75_read(dev, SSD_SENSOR_LM75_SADDRESS, &val);
if (ret) {
if (!test_and_set_bit(SSD_HWMON_SENSOR(SSD_SENSOR_LM75), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_SENSOR_FAULT, SSD_SENSOR_LM75_SADDRESS);
}
goto out;
}
test_and_clear_bit(SSD_HWMON_SENSOR(SSD_SENSOR_LM75), &dev->hwmon);
cur = SSD_SENSOR_CONVERT_TEMP(val);
if (cur >= SSD_FLASH_OT_TEMP) {
if (!test_and_set_bit(SSD_HWMON_TEMP(SSD_TEMP_FLASH), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_FLASH_OVER_TEMP, (uint32_t)cur);
}
} else if(cur < SSD_FLASH_OT_HYST) {
if (test_and_clear_bit(SSD_HWMON_TEMP(SSD_TEMP_FLASH), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_FLASH_NORMAL_TEMP, (uint32_t)cur);
}
}
out:
return ret;
}
/* cmd tag */
static inline void ssd_put_tag(struct ssd_device *dev, int tag)
{
test_and_clear_bit(tag, dev->tag_map);
wake_up(&dev->tag_wq);
}
static inline int ssd_get_tag(struct ssd_device *dev, int wait)
{
int tag;
find_tag:
while ((tag = find_first_zero_bit(dev->tag_map, dev->hw_info.cmd_fifo_sz)) >= atomic_read(&dev->queue_depth)) {
DEFINE_WAIT(__wait);
if (!wait) {
return -1;
}
prepare_to_wait_exclusive(&dev->tag_wq, &__wait, TASK_UNINTERRUPTIBLE);
schedule();
finish_wait(&dev->tag_wq, &__wait);
}
if (test_and_set_bit(tag, dev->tag_map)) {
goto find_tag;
}
return tag;
}
static void ssd_barrier_put_tag(struct ssd_device *dev, int tag)
{
test_and_clear_bit(tag, dev->tag_map);
}
static int ssd_barrier_get_tag(struct ssd_device *dev)
{
int tag = 0;
if (test_and_set_bit(tag, dev->tag_map)) {
return -1;
}
return tag;
}
static void ssd_barrier_end(struct ssd_device *dev)
{
atomic_set(&dev->queue_depth, dev->hw_info.cmd_fifo_sz);
wake_up_all(&dev->tag_wq);
mutex_unlock(&dev->barrier_mutex);
}
static int ssd_barrier_start(struct ssd_device *dev)
{
int i;
mutex_lock(&dev->barrier_mutex);
atomic_set(&dev->queue_depth, 0);
for (i=0; i<SSD_CMD_TIMEOUT; i++) {
if (find_first_bit(dev->tag_map, dev->hw_info.cmd_fifo_sz) >= dev->hw_info.cmd_fifo_sz) {
return 0;
}
__set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(1);
}
atomic_set(&dev->queue_depth, dev->hw_info.cmd_fifo_sz);
wake_up_all(&dev->tag_wq);
mutex_unlock(&dev->barrier_mutex);
return -EBUSY;
}
static int ssd_busy(struct ssd_device *dev)
{
if (find_first_bit(dev->tag_map, dev->hw_info.cmd_fifo_sz) >= dev->hw_info.cmd_fifo_sz) {
return 0;
}
return 1;
}
static int ssd_wait_io(struct ssd_device *dev)
{
int i;
for (i=0; i<SSD_CMD_TIMEOUT; i++) {
if (find_first_bit(dev->tag_map, dev->hw_info.cmd_fifo_sz) >= dev->hw_info.cmd_fifo_sz) {
return 0;
}
__set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(1);
}
return -EBUSY;
}
#if 0
static int ssd_in_barrier(struct ssd_device *dev)
{
return (0 == atomic_read(&dev->queue_depth));
}
#endif
static void ssd_cleanup_tag(struct ssd_device *dev)
{
kfree(dev->tag_map);
}
static int ssd_init_tag(struct ssd_device *dev)
{
int nr_ulongs = ALIGN(dev->hw_info.cmd_fifo_sz, BITS_PER_LONG) / BITS_PER_LONG;
mutex_init(&dev->barrier_mutex);
atomic_set(&dev->queue_depth, dev->hw_info.cmd_fifo_sz);
dev->tag_map = kmalloc(nr_ulongs * sizeof(unsigned long), GFP_ATOMIC);
if (!dev->tag_map) {
return -ENOMEM;
}
memset(dev->tag_map, 0, nr_ulongs * sizeof(unsigned long));
init_waitqueue_head(&dev->tag_wq);
return 0;
}
/* io stat */
static void ssd_end_io_acct(struct ssd_cmd *cmd)
{
struct ssd_device *dev = cmd->dev;
struct bio *bio = cmd->bio;
unsigned long dur = jiffies - cmd->start_time;
int rw = bio_data_dir(bio);
#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0)) || (defined RHEL_MAJOR && RHEL_MAJOR == 6 && RHEL_MINOR >= 7))
int cpu = part_stat_lock();
struct hd_struct *part = disk_map_sector_rcu(dev->gd, bio_start(bio));
part_round_stats(cpu, part);
part_stat_add(cpu, part, ticks[rw], dur);
part_dec_in_flight(part, rw);
part_stat_unlock();
#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27))
int cpu = part_stat_lock();
struct hd_struct *part = &dev->gd->part0;
part_round_stats(cpu, part);
part_stat_add(cpu, part, ticks[rw], dur);
part_stat_unlock();
part->in_flight[rw] = atomic_dec_return(&dev->in_flight[rw]);
#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,14))
preempt_disable();
disk_round_stats(dev->gd);
preempt_enable();
disk_stat_add(dev->gd, ticks[rw], dur);
dev->gd->in_flight = atomic_dec_return(&dev->in_flight[0]);
#else
preempt_disable();
disk_round_stats(dev->gd);
preempt_enable();
if (rw == WRITE) {
disk_stat_add(dev->gd, write_ticks, dur);
} else {
disk_stat_add(dev->gd, read_ticks, dur);
}
dev->gd->in_flight = atomic_dec_return(&dev->in_flight[0]);
#endif
}
static void ssd_start_io_acct(struct ssd_cmd *cmd)
{
struct ssd_device *dev = cmd->dev;
struct bio *bio = cmd->bio;
int rw = bio_data_dir(bio);
#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0)) || (defined RHEL_MAJOR && RHEL_MAJOR == 6 && RHEL_MINOR >= 7))
int cpu = part_stat_lock();
struct hd_struct *part = disk_map_sector_rcu(dev->gd, bio_start(bio));
part_round_stats(cpu, part);
part_stat_inc(cpu, part, ios[rw]);
part_stat_add(cpu, part, sectors[rw], bio_sectors(bio));
part_inc_in_flight(part, rw);
part_stat_unlock();
#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27))
int cpu = part_stat_lock();
struct hd_struct *part = &dev->gd->part0;
part_round_stats(cpu, part);
part_stat_inc(cpu, part, ios[rw]);
part_stat_add(cpu, part, sectors[rw], bio_sectors(bio));
part_stat_unlock();
part->in_flight[rw] = atomic_inc_return(&dev->in_flight[rw]);
#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,14))
preempt_disable();
disk_round_stats(dev->gd);
preempt_enable();
disk_stat_inc(dev->gd, ios[rw]);
disk_stat_add(dev->gd, sectors[rw], bio_sectors(bio));
dev->gd->in_flight = atomic_inc_return(&dev->in_flight[0]);
#else
preempt_disable();
disk_round_stats(dev->gd);
preempt_enable();
if (rw == WRITE) {
disk_stat_inc(dev->gd, writes);
disk_stat_add(dev->gd, write_sectors, bio_sectors(bio));
} else {
disk_stat_inc(dev->gd, reads);
disk_stat_add(dev->gd, read_sectors, bio_sectors(bio));
}
dev->gd->in_flight = atomic_inc_return(&dev->in_flight[0]);
#endif
cmd->start_time = jiffies;
}
/* io */
static void ssd_queue_bio(struct ssd_device *dev, struct bio *bio)
{
spin_lock(&dev->sendq_lock);
ssd_blist_add(&dev->sendq, bio);
spin_unlock(&dev->sendq_lock);
atomic_inc(&dev->in_sendq);
wake_up(&dev->send_waitq);
}
static inline void ssd_end_request(struct ssd_cmd *cmd)
{
struct ssd_device *dev = cmd->dev;
struct bio *bio = cmd->bio;
int errors = cmd->errors;
int tag = cmd->tag;
if (bio) {
#if (defined SSD_TRIM && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)))
if (!(bio->bi_rw & REQ_DISCARD)) {
ssd_end_io_acct(cmd);
if (!cmd->flag) {
pci_unmap_sg(dev->pdev, cmd->sgl, cmd->nsegs,
bio_data_dir(bio) == READ ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE);
}
}
#elif (defined SSD_TRIM && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)))
if (!bio_rw_flagged(bio, BIO_RW_DISCARD)) {
ssd_end_io_acct(cmd);
if (!cmd->flag) {
pci_unmap_sg(dev->pdev, cmd->sgl, cmd->nsegs,
bio_data_dir(bio) == READ ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE);
}
}
#else
ssd_end_io_acct(cmd);
if (!cmd->flag) {
pci_unmap_sg(dev->pdev, cmd->sgl, cmd->nsegs,
bio_data_dir(bio) == READ ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE);
}
#endif
cmd->bio = NULL;
ssd_put_tag(dev, tag);
if (SSD_INT_MSIX == dev->int_mode || tag < 16 || errors) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, errors);
#else
bio_endio(bio, bio->bi_size, errors);
#endif
} else /* if (bio->bi_idx >= bio->bi_vcnt)*/ {
spin_lock(&dev->doneq_lock);
ssd_blist_add(&dev->doneq, bio);
spin_unlock(&dev->doneq_lock);
atomic_inc(&dev->in_doneq);
wake_up(&dev->done_waitq);
}
} else {
if (cmd->waiting) {
complete(cmd->waiting);
}
}
}
static void ssd_end_timeout_request(struct ssd_cmd *cmd)
{
struct ssd_device *dev = cmd->dev;
struct ssd_rw_msg *msg = (struct ssd_rw_msg *)cmd->msg;
int i;
for (i=0; i<dev->nr_queue; i++) {
disable_irq(dev->entry[i].vector);
}
atomic_inc(&dev->tocnt);
//if (cmd->bio) {
hio_err("%s: cmd timeout: tag %d fun %#x\n", dev->name, msg->tag, msg->fun);
cmd->errors = -ETIMEDOUT;
ssd_end_request(cmd);
//}
for (i=0; i<dev->nr_queue; i++) {
enable_irq(dev->entry[i].vector);
}
/* alarm led */
ssd_set_alarm(dev);
}
/* cmd timer */
static void ssd_cmd_add_timer(struct ssd_cmd *cmd, int timeout, void (*complt)(struct ssd_cmd *))
{
init_timer(&cmd->cmd_timer);
cmd->cmd_timer.data = (unsigned long)cmd;
cmd->cmd_timer.expires = jiffies + timeout;
cmd->cmd_timer.function = (void (*)(unsigned long)) complt;
add_timer(&cmd->cmd_timer);
}
static int ssd_cmd_del_timer(struct ssd_cmd *cmd)
{
return del_timer(&cmd->cmd_timer);
}
static void ssd_add_timer(struct timer_list *timer, int timeout, void (*complt)(void *), void *data)
{
init_timer(timer);
timer->data = (unsigned long)data;
timer->expires = jiffies + timeout;
timer->function = (void (*)(unsigned long)) complt;
add_timer(timer);
}
static int ssd_del_timer(struct timer_list *timer)
{
return del_timer(timer);
}
static void ssd_cmd_timeout(struct ssd_cmd *cmd)
{
struct ssd_device *dev = cmd->dev;
uint32_t msg = *(uint32_t *)cmd->msg;
ssd_end_timeout_request(cmd);
ssd_gen_swlog(dev, SSD_LOG_TIMEOUT, msg);
}
static void __ssd_done(unsigned long data)
{
struct ssd_cmd *cmd;
LIST_HEAD(localq);
local_irq_disable();
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0))
list_splice_init(&__get_cpu_var(ssd_doneq), &localq);
#else
list_splice_init(this_cpu_ptr(&ssd_doneq), &localq);
#endif
local_irq_enable();
while (!list_empty(&localq)) {
cmd = list_entry(localq.next, struct ssd_cmd, list);
list_del_init(&cmd->list);
ssd_end_request(cmd);
}
}
static void __ssd_done_db(unsigned long data)
{
struct ssd_cmd *cmd;
struct ssd_device *dev;
struct bio *bio;
LIST_HEAD(localq);
local_irq_disable();
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0))
list_splice_init(&__get_cpu_var(ssd_doneq), &localq);
#else
list_splice_init(this_cpu_ptr(&ssd_doneq), &localq);
#endif
local_irq_enable();
while (!list_empty(&localq)) {
cmd = list_entry(localq.next, struct ssd_cmd, list);
list_del_init(&cmd->list);
dev = (struct ssd_device *)cmd->dev;
bio = cmd->bio;
if (bio) {
sector_t off = dev->db_info.data.loc.off;
uint32_t len = dev->db_info.data.loc.len;
switch (dev->db_info.type) {
case SSD_DEBUG_READ_ERR:
if (bio_data_dir(bio) == READ &&
!((off + len) <= bio_start(bio) || off >= (bio_start(bio) + bio_sectors(bio)))) {
cmd->errors = -EIO;
}
break;
case SSD_DEBUG_WRITE_ERR:
if (bio_data_dir(bio) == WRITE &&
!((off + len) <= bio_start(bio) || off >= (bio_start(bio) + bio_sectors(bio)))) {
cmd->errors = -EROFS;
}
break;
case SSD_DEBUG_RW_ERR:
if (!((off + len) <= bio_start(bio) || off >= (bio_start(bio) + bio_sectors(bio)))) {
if (bio_data_dir(bio) == READ) {
cmd->errors = -EIO;
} else {
cmd->errors = -EROFS;
}
}
break;
default:
break;
}
}
ssd_end_request(cmd);
}
}
static inline void ssd_done_bh(struct ssd_cmd *cmd)
{
unsigned long flags = 0;
if (unlikely(!ssd_cmd_del_timer(cmd))) {
struct ssd_device *dev = cmd->dev;
struct ssd_rw_msg *msg = (struct ssd_rw_msg *)cmd->msg;
hio_err("%s: unknown cmd: tag %d fun %#x\n", dev->name, msg->tag, msg->fun);
/* alarm led */
ssd_set_alarm(dev);
return;
}
local_irq_save(flags);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0))
list_add_tail(&cmd->list, &__get_cpu_var(ssd_doneq));
tasklet_hi_schedule(&__get_cpu_var(ssd_tasklet));
#else
list_add_tail(&cmd->list, this_cpu_ptr(&ssd_doneq));
tasklet_hi_schedule(this_cpu_ptr(&ssd_tasklet));
#endif
local_irq_restore(flags);
return;
}
static inline void ssd_done(struct ssd_cmd *cmd)
{
if (unlikely(!ssd_cmd_del_timer(cmd))) {
struct ssd_device *dev = cmd->dev;
struct ssd_rw_msg *msg = (struct ssd_rw_msg *)cmd->msg;
hio_err("%s: unknown cmd: tag %d fun %#x\n", dev->name, msg->tag, msg->fun);
/* alarm led */
ssd_set_alarm(dev);
return;
}
ssd_end_request(cmd);
return;
}
static inline void ssd_dispatch_cmd(struct ssd_cmd *cmd)
{
struct ssd_device *dev = (struct ssd_device *)cmd->dev;
ssd_cmd_add_timer(cmd, SSD_CMD_TIMEOUT, ssd_cmd_timeout);
spin_lock(&dev->cmd_lock);
ssd_reg_write(dev->ctrlp + SSD_REQ_FIFO_REG, cmd->msg_dma);
spin_unlock(&dev->cmd_lock);
}
static inline void ssd_send_cmd(struct ssd_cmd *cmd)
{
struct ssd_device *dev = (struct ssd_device *)cmd->dev;
ssd_cmd_add_timer(cmd, SSD_CMD_TIMEOUT, ssd_cmd_timeout);
ssd_reg32_write(dev->ctrlp + SSD_REQ_FIFO_REG, ((uint32_t)cmd->tag | ((uint32_t)cmd->nsegs << 16)));
}
static inline void ssd_send_cmd_db(struct ssd_cmd *cmd)
{
struct ssd_device *dev = (struct ssd_device *)cmd->dev;
struct bio *bio = cmd->bio;
ssd_cmd_add_timer(cmd, SSD_CMD_TIMEOUT, ssd_cmd_timeout);
if (bio) {
switch (dev->db_info.type) {
case SSD_DEBUG_READ_TO:
if (bio_data_dir(bio) == READ) {
return;
}
break;
case SSD_DEBUG_WRITE_TO:
if (bio_data_dir(bio) == WRITE) {
return;
}
break;
case SSD_DEBUG_RW_TO:
return;
break;
default:
break;
}
}
ssd_reg32_write(dev->ctrlp + SSD_REQ_FIFO_REG, ((uint32_t)cmd->tag | ((uint32_t)cmd->nsegs << 16)));
}
/* fixed for BIOVEC_PHYS_MERGEABLE */
#ifdef SSD_BIOVEC_PHYS_MERGEABLE_FIXED
#include <linux/bio.h>
#include <linux/io.h>
#include <xen/page.h>
static bool xen_biovec_phys_mergeable_fixed(const struct bio_vec *vec1,
const struct bio_vec *vec2)
{
unsigned long mfn1 = pfn_to_mfn(page_to_pfn(vec1->bv_page));
unsigned long mfn2 = pfn_to_mfn(page_to_pfn(vec2->bv_page));
return __BIOVEC_PHYS_MERGEABLE(vec1, vec2) &&
((mfn1 == mfn2) || ((mfn1+1) == mfn2));
}
#ifdef BIOVEC_PHYS_MERGEABLE
#undef BIOVEC_PHYS_MERGEABLE
#endif
#define BIOVEC_PHYS_MERGEABLE(vec1, vec2) \
(__BIOVEC_PHYS_MERGEABLE(vec1, vec2) && \
(!xen_domain() || xen_biovec_phys_mergeable_fixed(vec1, vec2)))
#endif
static inline int ssd_bio_map_sg(struct ssd_device *dev, struct bio *bio, struct scatterlist *sgl)
{
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,14,0))
struct bio_vec *bvec, *bvprv = NULL;
struct scatterlist *sg = NULL;
int i = 0, nsegs = 0;
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23))
sg_init_table(sgl, dev->hw_info.cmd_max_sg);
#endif
/*
* for each segment in bio
*/
bio_for_each_segment(bvec, bio, i) {
if (bvprv && BIOVEC_PHYS_MERGEABLE(bvprv, bvec)) {
sg->length += bvec->bv_len;
} else {
if (unlikely(nsegs >= (int)dev->hw_info.cmd_max_sg)) {
break;
}
sg = sg ? (sg + 1) : sgl;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
sg_set_page(sg, bvec->bv_page, bvec->bv_len, bvec->bv_offset);
#else
sg->page = bvec->bv_page;
sg->length = bvec->bv_len;
sg->offset = bvec->bv_offset;
#endif
nsegs++;
}
bvprv = bvec;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
if (sg) {
sg_mark_end(sg);
}
#endif
bio->bi_idx = i;
return nsegs;
#else
struct bio_vec bvec, bvprv;
struct bvec_iter iter;
struct scatterlist *sg = NULL;
int nsegs = 0;
int first = 1;
sg_init_table(sgl, dev->hw_info.cmd_max_sg);
/*
* for each segment in bio
*/
bio_for_each_segment(bvec, bio, iter) {
if (!first && BIOVEC_PHYS_MERGEABLE(&bvprv, &bvec)) {
sg->length += bvec.bv_len;
} else {
if (unlikely(nsegs >= (int)dev->hw_info.cmd_max_sg)) {
break;
}
sg = sg ? (sg + 1) : sgl;
sg_set_page(sg, bvec.bv_page, bvec.bv_len, bvec.bv_offset);
nsegs++;
first = 0;
}
bvprv = bvec;
}
if (sg) {
sg_mark_end(sg);
}
return nsegs;
#endif
}
static int __ssd_submit_pbio(struct ssd_device *dev, struct bio *bio, int wait)
{
struct ssd_cmd *cmd;
struct ssd_rw_msg *msg;
struct ssd_sg_entry *sge;
sector_t block = bio_start(bio);
int tag;
int i;
tag = ssd_get_tag(dev, wait);
if (tag < 0) {
return -EBUSY;
}
cmd = &dev->cmd[tag];
cmd->bio = bio;
cmd->flag = 1;
msg = (struct ssd_rw_msg *)cmd->msg;
#if (defined SSD_TRIM && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)))
if (bio->bi_rw & REQ_DISCARD) {
unsigned int length = bio_sectors(bio);
//printk(KERN_WARNING "%s: discard len %u, block %llu\n", dev->name, bio_sectors(bio), block);
msg->tag = tag;
msg->fun = SSD_FUNC_TRIM;
sge = msg->sge;
for (i=0; i<(dev->hw_info.cmd_max_sg); i++) {
sge->block = block;
sge->length = (length >= dev->hw_info.sg_max_sec) ? dev->hw_info.sg_max_sec : length;
sge->buf = 0;
block += sge->length;
length -= sge->length;
sge++;
if (length <= 0) {
break;
}
}
msg->nsegs = cmd->nsegs = (i + 1);
dev->scmd(cmd);
return 0;
}
#elif (defined SSD_TRIM && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)))
if (bio_rw_flagged(bio, BIO_RW_DISCARD)) {
unsigned int length = bio_sectors(bio);
//printk(KERN_WARNING "%s: discard len %u, block %llu\n", dev->name, bio_sectors(bio), block);
msg->tag = tag;
msg->fun = SSD_FUNC_TRIM;
sge = msg->sge;
for (i=0; i<(dev->hw_info.cmd_max_sg); i++) {
sge->block = block;
sge->length = (length >= dev->hw_info.sg_max_sec) ? dev->hw_info.sg_max_sec : length;
sge->buf = 0;
block += sge->length;
length -= sge->length;
sge++;
if (length <= 0) {
break;
}
}
msg->nsegs = cmd->nsegs = (i + 1);
dev->scmd(cmd);
return 0;
}
#endif
//msg->nsegs = cmd->nsegs = ssd_bio_map_sg(dev, bio, sgl);
msg->nsegs = cmd->nsegs = bio->bi_vcnt;
//xx
if (bio_data_dir(bio) == READ) {
msg->fun = SSD_FUNC_READ;
msg->flag = 0;
} else {
msg->fun = SSD_FUNC_WRITE;
msg->flag = dev->wmode;
}
sge = msg->sge;
for (i=0; i<bio->bi_vcnt; i++) {
sge->block = block;
sge->length = bio->bi_io_vec[i].bv_len >> 9;
sge->buf = (uint64_t)((void *)bio->bi_io_vec[i].bv_page + bio->bi_io_vec[i].bv_offset);
block += sge->length;
sge++;
}
msg->tag = tag;
#ifdef SSD_OT_PROTECT
if (unlikely(dev->ot_delay > 0 && dev->ot_protect != 0)) {
msleep_interruptible(dev->ot_delay);
}
#endif
ssd_start_io_acct(cmd);
dev->scmd(cmd);
return 0;
}
static inline int ssd_submit_bio(struct ssd_device *dev, struct bio *bio, int wait)
{
struct ssd_cmd *cmd;
struct ssd_rw_msg *msg;
struct ssd_sg_entry *sge;
struct scatterlist *sgl;
sector_t block = bio_start(bio);
int tag;
int i;
tag = ssd_get_tag(dev, wait);
if (tag < 0) {
return -EBUSY;
}
cmd = &dev->cmd[tag];
cmd->bio = bio;
cmd->flag = 0;
msg = (struct ssd_rw_msg *)cmd->msg;
sgl = cmd->sgl;
#if (defined SSD_TRIM && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)))
if (bio->bi_rw & REQ_DISCARD) {
unsigned int length = bio_sectors(bio);
//printk(KERN_WARNING "%s: discard len %u, block %llu\n", dev->name, bio_sectors(bio), block);
msg->tag = tag;
msg->fun = SSD_FUNC_TRIM;
sge = msg->sge;
for (i=0; i<(dev->hw_info.cmd_max_sg); i++) {
sge->block = block;
sge->length = (length >= dev->hw_info.sg_max_sec) ? dev->hw_info.sg_max_sec : length;
sge->buf = 0;
block += sge->length;
length -= sge->length;
sge++;
if (length <= 0) {
break;
}
}
msg->nsegs = cmd->nsegs = (i + 1);
dev->scmd(cmd);
return 0;
}
#elif (defined SSD_TRIM && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)))
if (bio_rw_flagged(bio, BIO_RW_DISCARD)) {
unsigned int length = bio_sectors(bio);
//printk(KERN_WARNING "%s: discard len %u, block %llu\n", dev->name, bio_sectors(bio), block);
msg->tag = tag;
msg->fun = SSD_FUNC_TRIM;
sge = msg->sge;
for (i=0; i<(dev->hw_info.cmd_max_sg); i++) {
sge->block = block;
sge->length = (length >= dev->hw_info.sg_max_sec) ? dev->hw_info.sg_max_sec : length;
sge->buf = 0;
block += sge->length;
length -= sge->length;
sge++;
if (length <= 0) {
break;
}
}
msg->nsegs = cmd->nsegs = (i + 1);
dev->scmd(cmd);
return 0;
}
#endif
msg->nsegs = cmd->nsegs = ssd_bio_map_sg(dev, bio, sgl);
//xx
if (bio_data_dir(bio) == READ) {
msg->fun = SSD_FUNC_READ;
msg->flag = 0;
pci_map_sg(dev->pdev, sgl, cmd->nsegs, PCI_DMA_FROMDEVICE);
} else {
msg->fun = SSD_FUNC_WRITE;
msg->flag = dev->wmode;
pci_map_sg(dev->pdev, sgl, cmd->nsegs, PCI_DMA_TODEVICE);
}
sge = msg->sge;
for (i=0; i<cmd->nsegs; i++) {
sge->block = block;
sge->length = sg_dma_len(sgl) >> 9;
sge->buf = sg_dma_address(sgl);
block += sge->length;
sgl++;
sge++;
}
msg->tag = tag;
#ifdef SSD_OT_PROTECT
if (unlikely(dev->ot_delay > 0 && dev->ot_protect != 0)) {
msleep_interruptible(dev->ot_delay);
}
#endif
ssd_start_io_acct(cmd);
dev->scmd(cmd);
return 0;
}
/* threads */
static int ssd_done_thread(void *data)
{
struct ssd_device *dev;
struct bio *bio;
struct bio *next;
#ifdef SSD_ESCAPE_IRQ
cpumask_t new_mask;
#endif
if (!data) {
return -EINVAL;
}
dev = data;
//set_user_nice(current, -5);
while (!kthread_should_stop()) {
wait_event_interruptible(dev->done_waitq, (atomic_read(&dev->in_doneq) || kthread_should_stop()));
while (atomic_read(&dev->in_doneq)) {
if (threaded_irq) {
spin_lock(&dev->doneq_lock);
bio = ssd_blist_get(&dev->doneq);
spin_unlock(&dev->doneq_lock);
} else {
spin_lock_irq(&dev->doneq_lock);
bio = ssd_blist_get(&dev->doneq);
spin_unlock_irq(&dev->doneq_lock);
}
while (bio) {
next = bio->bi_next;
bio->bi_next = NULL;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, 0);
#else
bio_endio(bio, bio->bi_size, 0);
#endif
atomic_dec(&dev->in_doneq);
bio = next;
}
cond_resched();
#ifdef SSD_ESCAPE_IRQ
if (unlikely(smp_processor_id() == dev->irq_cpu)) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
cpumask_setall(&new_mask);
cpumask_clear_cpu(dev->irq_cpu, &new_mask);
set_cpus_allowed_ptr(current, &new_mask);
#else
cpus_setall(new_mask);
cpu_clear(dev->irq_cpu, new_mask);
set_cpus_allowed(current, new_mask);
#endif
}
#endif
}
}
return 0;
}
static int ssd_send_thread(void *data)
{
struct ssd_device *dev;
struct bio *bio;
struct bio *next;
#ifdef SSD_ESCAPE_IRQ
cpumask_t new_mask;
#endif
if (!data) {
return -EINVAL;
}
dev = data;
//set_user_nice(current, -5);
while (!kthread_should_stop()) {
wait_event_interruptible(dev->send_waitq, (atomic_read(&dev->in_sendq) || kthread_should_stop()));
while (atomic_read(&dev->in_sendq)) {
spin_lock(&dev->sendq_lock);
bio = ssd_blist_get(&dev->sendq);
spin_unlock(&dev->sendq_lock);
while (bio) {
next = bio->bi_next;
bio->bi_next = NULL;
#ifdef SSD_QUEUE_PBIO
if (test_and_clear_bit(BIO_SSD_PBIO, &bio->bi_flags)) {
__ssd_submit_pbio(dev, bio, 1);
} else {
ssd_submit_bio(dev, bio, 1);
}
#else
ssd_submit_bio(dev, bio, 1);
#endif
atomic_dec(&dev->in_sendq);
bio = next;
}
cond_resched();
#ifdef SSD_ESCAPE_IRQ
if (unlikely(smp_processor_id() == dev->irq_cpu)) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
cpumask_setall(&new_mask);
cpumask_clear_cpu(dev->irq_cpu, &new_mask);
set_cpus_allowed_ptr(current, &new_mask);
#else
cpus_setall(new_mask);
cpu_clear(dev->irq_cpu, new_mask);
set_cpus_allowed(current, new_mask);
#endif
}
#endif
}
}
return 0;
}
static void ssd_cleanup_thread(struct ssd_device *dev)
{
kthread_stop(dev->send_thread);
kthread_stop(dev->done_thread);
}
static int ssd_init_thread(struct ssd_device *dev)
{
int ret;
atomic_set(&dev->in_doneq, 0);
atomic_set(&dev->in_sendq, 0);
spin_lock_init(&dev->doneq_lock);
spin_lock_init(&dev->sendq_lock);
ssd_blist_init(&dev->doneq);
ssd_blist_init(&dev->sendq);
init_waitqueue_head(&dev->done_waitq);
init_waitqueue_head(&dev->send_waitq);
dev->done_thread = kthread_run(ssd_done_thread, dev, "%s/d", dev->name);
if (IS_ERR(dev->done_thread)) {
ret = PTR_ERR(dev->done_thread);
goto out_done_thread;
}
dev->send_thread = kthread_run(ssd_send_thread, dev, "%s/s", dev->name);
if (IS_ERR(dev->send_thread)) {
ret = PTR_ERR(dev->send_thread);
goto out_send_thread;
}
return 0;
out_send_thread:
kthread_stop(dev->done_thread);
out_done_thread:
return ret;
}
/* dcmd pool */
static void ssd_put_dcmd(struct ssd_dcmd *dcmd)
{
struct ssd_device *dev = (struct ssd_device *)dcmd->dev;
spin_lock(&dev->dcmd_lock);
list_add_tail(&dcmd->list, &dev->dcmd_list);
spin_unlock(&dev->dcmd_lock);
}
static struct ssd_dcmd *ssd_get_dcmd(struct ssd_device *dev)
{
struct ssd_dcmd *dcmd = NULL;
spin_lock(&dev->dcmd_lock);
if (!list_empty(&dev->dcmd_list)) {
dcmd = list_entry(dev->dcmd_list.next,
struct ssd_dcmd, list);
list_del_init(&dcmd->list);
}
spin_unlock(&dev->dcmd_lock);
return dcmd;
}
static void ssd_cleanup_dcmd(struct ssd_device *dev)
{
kfree(dev->dcmd);
}
static int ssd_init_dcmd(struct ssd_device *dev)
{
struct ssd_dcmd *dcmd;
int dcmd_sz = sizeof(struct ssd_dcmd)*dev->hw_info.cmd_fifo_sz;
int i;
spin_lock_init(&dev->dcmd_lock);
INIT_LIST_HEAD(&dev->dcmd_list);
init_waitqueue_head(&dev->dcmd_wq);
dev->dcmd = kmalloc(dcmd_sz, GFP_KERNEL);
if (!dev->dcmd) {
hio_warn("%s: can not alloc dcmd\n", dev->name);
goto out_alloc_dcmd;
}
memset(dev->dcmd, 0, dcmd_sz);
for (i=0, dcmd=dev->dcmd; i<(int)dev->hw_info.cmd_fifo_sz; i++, dcmd++) {
dcmd->dev = dev;
INIT_LIST_HEAD(&dcmd->list);
list_add_tail(&dcmd->list, &dev->dcmd_list);
}
return 0;
out_alloc_dcmd:
return -ENOMEM;
}
static void ssd_put_dmsg(void *msg)
{
struct ssd_dcmd *dcmd = container_of(msg, struct ssd_dcmd, msg);
struct ssd_device *dev = (struct ssd_device *)dcmd->dev;
memset(dcmd->msg, 0, SSD_DCMD_MAX_SZ);
ssd_put_dcmd(dcmd);
wake_up(&dev->dcmd_wq);
}
static void *ssd_get_dmsg(struct ssd_device *dev)
{
struct ssd_dcmd *dcmd = ssd_get_dcmd(dev);
while (!dcmd) {
DEFINE_WAIT(wait);
prepare_to_wait_exclusive(&dev->dcmd_wq, &wait, TASK_UNINTERRUPTIBLE);
schedule();
dcmd = ssd_get_dcmd(dev);
finish_wait(&dev->dcmd_wq, &wait);
}
return dcmd->msg;
}
/* do direct cmd */
static int ssd_do_request(struct ssd_device *dev, int rw, void *msg, int *done)
{
DECLARE_COMPLETION(wait);
struct ssd_cmd *cmd;
int tag;
int ret = 0;
tag = ssd_get_tag(dev, 1);
if (tag < 0) {
return -EBUSY;
}
cmd = &dev->cmd[tag];
cmd->nsegs = 1;
memcpy(cmd->msg, msg, SSD_DCMD_MAX_SZ);
((struct ssd_rw_msg *)cmd->msg)->tag = tag;
cmd->waiting = &wait;
dev->scmd(cmd);
wait_for_completion(cmd->waiting);
cmd->waiting = NULL;
if (cmd->errors == -ETIMEDOUT) {
ret = cmd->errors;
} else if (cmd->errors) {
ret = -EIO;
}
if (done != NULL) {
*done = cmd->nr_log;
}
ssd_put_tag(dev, cmd->tag);
return ret;
}
static int ssd_do_barrier_request(struct ssd_device *dev, int rw, void *msg, int *done)
{
DECLARE_COMPLETION(wait);
struct ssd_cmd *cmd;
int tag;
int ret = 0;
tag = ssd_barrier_get_tag(dev);
if (tag < 0) {
return -EBUSY;
}
cmd = &dev->cmd[tag];
cmd->nsegs = 1;
memcpy(cmd->msg, msg, SSD_DCMD_MAX_SZ);
((struct ssd_rw_msg *)cmd->msg)->tag = tag;
cmd->waiting = &wait;
dev->scmd(cmd);
wait_for_completion(cmd->waiting);
cmd->waiting = NULL;
if (cmd->errors == -ETIMEDOUT) {
ret = cmd->errors;
} else if (cmd->errors) {
ret = -EIO;
}
if (done != NULL) {
*done = cmd->nr_log;
}
ssd_barrier_put_tag(dev, cmd->tag);
return ret;
}
#ifdef SSD_OT_PROTECT
static void ssd_check_temperature(struct ssd_device *dev, int temp)
{
uint64_t val;
uint32_t off;
int cur;
int i;
if (mode != SSD_DRV_MODE_STANDARD) {
return;
}
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
}
for (i=0; i<dev->hw_info.nr_ctrl; i++) {
off = SSD_CTRL_TEMP_REG0 + i * sizeof(uint64_t);
val = ssd_reg_read(dev->ctrlp + off);
if (val == 0xffffffffffffffffull) {
continue;
}
cur = (int)CUR_TEMP(val);
if (cur >= temp) {
if (!test_and_set_bit(SSD_HWMON_TEMP(SSD_TEMP_CTRL), &dev->hwmon)) {
if (dev->protocol_info.ver > SSD_PROTOCOL_V3 && dev->protocol_info.ver < SSD_PROTOCOL_V3_2_2) {
hio_warn("%s: Over temperature, please check the fans.\n", dev->name);
dev->ot_delay = SSD_OT_DELAY;
}
}
return;
}
}
if (test_and_clear_bit(SSD_HWMON_TEMP(SSD_TEMP_CTRL), &dev->hwmon)) {
if (dev->protocol_info.ver > SSD_PROTOCOL_V3 && dev->protocol_info.ver < SSD_PROTOCOL_V3_2_2) {
hio_warn("%s: Temperature is OK.\n", dev->name);
dev->ot_delay = 0;
}
}
}
#endif
static int ssd_get_ot_status(struct ssd_device *dev, int *status)
{
uint32_t off;
uint32_t val;
int i;
if (!dev || !status) {
return -EINVAL;
}
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2_2) {
for (i=0; i<dev->hw_info.nr_ctrl; i++) {
off = SSD_READ_OT_REG0 + (i * SSD_CTRL_REG_ZONE_SZ);
val = ssd_reg32_read(dev->ctrlp + off);
if ((val >> 22) & 0x1) {
*status = 1;
goto out;
}
off = SSD_WRITE_OT_REG0 + (i * SSD_CTRL_REG_ZONE_SZ);
val = ssd_reg32_read(dev->ctrlp + off);
if ((val >> 22) & 0x1) {
*status = 1;
goto out;
}
}
} else {
*status = !!dev->ot_delay;
}
out:
return 0;
}
static void ssd_set_ot_protect(struct ssd_device *dev, int protect)
{
uint32_t off;
uint32_t val;
int i;
mutex_lock(&dev->fw_mutex);
dev->ot_protect = !!protect;
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2_2) {
for (i=0; i<dev->hw_info.nr_ctrl; i++) {
off = SSD_READ_OT_REG0 + (i * SSD_CTRL_REG_ZONE_SZ);
val = ssd_reg32_read(dev->ctrlp + off);
if (dev->ot_protect) {
val |= (1U << 21);
} else {
val &= ~(1U << 21);
}
ssd_reg32_write(dev->ctrlp + off, val);
off = SSD_WRITE_OT_REG0 + (i * SSD_CTRL_REG_ZONE_SZ);
val = ssd_reg32_read(dev->ctrlp + off);
if (dev->ot_protect) {
val |= (1U << 21);
} else {
val &= ~(1U << 21);
}
ssd_reg32_write(dev->ctrlp + off, val);
}
}
mutex_unlock(&dev->fw_mutex);
}
static int ssd_init_ot_protect(struct ssd_device *dev)
{
ssd_set_ot_protect(dev, ot_protect);
#ifdef SSD_OT_PROTECT
ssd_check_temperature(dev, SSD_OT_TEMP);
#endif
return 0;
}
/* log */
static int ssd_read_log(struct ssd_device *dev, int ctrl_idx, void *buf, int *nr_log)
{
struct ssd_log_op_msg *msg;
struct ssd_log_msg *lmsg;
dma_addr_t buf_dma;
size_t length = dev->hw_info.log_sz;
int ret = 0;
if (ctrl_idx >= dev->hw_info.nr_ctrl) {
return -EINVAL;
}
buf_dma = pci_map_single(dev->pdev, buf, length, PCI_DMA_FROMDEVICE);
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,26))
ret = dma_mapping_error(buf_dma);
#else
ret = dma_mapping_error(&(dev->pdev->dev), buf_dma);
#endif
if (ret) {
hio_warn("%s: unable to map read DMA buffer\n", dev->name);
goto out_dma_mapping;
}
msg = (struct ssd_log_op_msg *)ssd_get_dmsg(dev);
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
lmsg = (struct ssd_log_msg *)msg;
lmsg->fun = SSD_FUNC_READ_LOG;
lmsg->ctrl_idx = ctrl_idx;
lmsg->buf = buf_dma;
} else {
msg->fun = SSD_FUNC_READ_LOG;
msg->ctrl_idx = ctrl_idx;
msg->buf = buf_dma;
}
ret = ssd_do_request(dev, READ, msg, nr_log);
ssd_put_dmsg(msg);
pci_unmap_single(dev->pdev, buf_dma, length, PCI_DMA_FROMDEVICE);
out_dma_mapping:
return ret;
}
#define SSD_LOG_PRINT_BUF_SZ 256
static int ssd_parse_log(struct ssd_device *dev, struct ssd_log *log, int print)
{
struct ssd_log_desc *log_desc = ssd_log_desc;
struct ssd_log_entry *le;
char *sn = NULL;
char print_buf[SSD_LOG_PRINT_BUF_SZ];
int print_len;
le = &log->le;
/* find desc */
while (log_desc->event != SSD_UNKNOWN_EVENT) {
if (log_desc->event == le->event) {
break;
}
log_desc++;
}
if (!print) {
goto out;
}
if (log_desc->level < log_level) {
goto out;
}
/* parse */
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
sn = dev->label.sn;
} else {
sn = dev->labelv3.barcode;
}
print_len = snprintf(print_buf, SSD_LOG_PRINT_BUF_SZ, "%s (%s): <%#x>", dev->name, sn, le->event);
if (log->ctrl_idx != SSD_LOG_SW_IDX) {
print_len += snprintf((print_buf + print_len), (SSD_LOG_PRINT_BUF_SZ - print_len), " controller %d", log->ctrl_idx);
}
switch (log_desc->data) {
case SSD_LOG_DATA_NONE:
break;
case SSD_LOG_DATA_LOC:
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
print_len += snprintf((print_buf + print_len), (SSD_LOG_PRINT_BUF_SZ - print_len), " flash %d", le->data.loc.flash);
if (log_desc->sblock) {
print_len += snprintf((print_buf + print_len), (SSD_LOG_PRINT_BUF_SZ - print_len), " block %d", le->data.loc.block);
}
if (log_desc->spage) {
print_len += snprintf((print_buf + print_len), (SSD_LOG_PRINT_BUF_SZ - print_len), " page %d", le->data.loc.page);
}
} else {
print_len += snprintf((print_buf + print_len), (SSD_LOG_PRINT_BUF_SZ - print_len), " flash %d", le->data.loc1.flash);
if (log_desc->sblock) {
print_len += snprintf((print_buf + print_len), (SSD_LOG_PRINT_BUF_SZ - print_len), " block %d", le->data.loc1.block);
}
if (log_desc->spage) {
print_len += snprintf((print_buf + print_len), (SSD_LOG_PRINT_BUF_SZ - print_len), " page %d", le->data.loc1.page);
}
}
break;
case SSD_LOG_DATA_HEX:
print_len += snprintf((print_buf + print_len), (SSD_LOG_PRINT_BUF_SZ - print_len), " info %#x", le->data.val);
break;
default:
break;
}
/*print_len += */snprintf((print_buf + print_len), (SSD_LOG_PRINT_BUF_SZ - print_len), ": %s", log_desc->desc);
switch (log_desc->level) {
case SSD_LOG_LEVEL_INFO:
hio_info("%s\n", print_buf);
break;
case SSD_LOG_LEVEL_NOTICE:
hio_note("%s\n", print_buf);
break;
case SSD_LOG_LEVEL_WARNING:
hio_warn("%s\n", print_buf);
break;
case SSD_LOG_LEVEL_ERR:
hio_err("%s\n", print_buf);
//printk(KERN_ERR MODULE_NAME": some exception occurred, please check the data or refer to FAQ.");
break;
default:
hio_warn("%s\n", print_buf);
break;
}
out:
return log_desc->level;
}
static int ssd_bm_get_sfstatus(struct ssd_device *dev, uint16_t *status);
static int ssd_switch_wmode(struct ssd_device *dev, int wmode);
static int ssd_handle_event(struct ssd_device *dev, uint16_t event, int level)
{
int ret = 0;
switch (event) {
case SSD_LOG_OVER_TEMP: {
#ifdef SSD_OT_PROTECT
if (!test_and_set_bit(SSD_HWMON_TEMP(SSD_TEMP_CTRL), &dev->hwmon)) {
if (dev->protocol_info.ver > SSD_PROTOCOL_V3 && dev->protocol_info.ver < SSD_PROTOCOL_V3_2_2) {
hio_warn("%s: Over temperature, please check the fans.\n", dev->name);
dev->ot_delay = SSD_OT_DELAY;
}
}
#endif
break;
}
case SSD_LOG_NORMAL_TEMP: {
#ifdef SSD_OT_PROTECT
/* need to check all controller's temperature */
ssd_check_temperature(dev, SSD_OT_TEMP_HYST);
#endif
break;
}
case SSD_LOG_BATTERY_FAULT: {
uint16_t sfstatus;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
if (!ssd_bm_get_sfstatus(dev, &sfstatus)) {
ssd_gen_swlog(dev, SSD_LOG_BM_SFSTATUS, sfstatus);
}
}
if (!test_and_set_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon)) {
ssd_switch_wmode(dev, dev->user_wmode);
}
break;
}
case SSD_LOG_BATTERY_OK: {
if (test_and_clear_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon)) {
ssd_switch_wmode(dev, dev->user_wmode);
}
break;
}
case SSD_LOG_BOARD_VOLT_FAULT: {
ssd_mon_boardvolt(dev);
break;
}
case SSD_LOG_CLEAR_LOG: {
/* update smart */
memset(&dev->smart.log_info, 0, sizeof(struct ssd_log_info));
break;
}
case SSD_LOG_CAP_VOLT_FAULT:
case SSD_LOG_CAP_LEARN_FAULT:
case SSD_LOG_CAP_SHORT_CIRCUIT: {
if (!test_and_set_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon)) {
ssd_switch_wmode(dev, dev->user_wmode);
}
break;
}
default:
break;
}
/* ssd event call */
if (dev->event_call) {
dev->event_call(dev->gd, event, level);
/* FIXME */
if (SSD_LOG_CAP_VOLT_FAULT == event || SSD_LOG_CAP_LEARN_FAULT == event || SSD_LOG_CAP_SHORT_CIRCUIT == event) {
dev->event_call(dev->gd, SSD_LOG_BATTERY_FAULT, level);
}
}
return ret;
}
static int ssd_save_log(struct ssd_device *dev, struct ssd_log *log)
{
uint32_t off, size;
void *internal_log;
int ret = 0;
mutex_lock(&dev->internal_log_mutex);
size = sizeof(struct ssd_log);
off = dev->internal_log.nr_log * size;
if (off == dev->rom_info.log_sz) {
if (dev->internal_log.nr_log == dev->smart.log_info.nr_log) {
hio_warn("%s: internal log is full\n", dev->name);
}
goto out;
}
internal_log = dev->internal_log.log + off;
memcpy(internal_log, log, size);
if (dev->protocol_info.ver > SSD_PROTOCOL_V3) {
off += dev->rom_info.log_base;
ret = ssd_spi_write(dev, log, off, size);
if (ret) {
goto out;
}
}
dev->internal_log.nr_log++;
out:
mutex_unlock(&dev->internal_log_mutex);
return ret;
}
static int ssd_save_swlog(struct ssd_device *dev, uint16_t event, uint32_t data)
{
struct ssd_log log;
struct timeval tv;
int level;
int ret = 0;
if (unlikely(mode != SSD_DRV_MODE_STANDARD))
return 0;
memset(&log, 0, sizeof(struct ssd_log));
do_gettimeofday(&tv);
log.ctrl_idx = SSD_LOG_SW_IDX;
log.time = tv.tv_sec;
log.le.event = event;
log.le.data.val = data;
level = ssd_parse_log(dev, &log, 0);
if (level >= SSD_LOG_LEVEL) {
ret = ssd_save_log(dev, &log);
}
/* set alarm */
if (SSD_LOG_LEVEL_ERR == level) {
ssd_set_alarm(dev);
}
/* update smart */
dev->smart.log_info.nr_log++;
dev->smart.log_info.stat[level]++;
/* handle event */
ssd_handle_event(dev, event, level);
return ret;
}
static int ssd_gen_swlog(struct ssd_device *dev, uint16_t event, uint32_t data)
{
struct ssd_log_entry le;
int ret;
if (unlikely(mode != SSD_DRV_MODE_STANDARD))
return 0;
/* slave port ? */
if (dev->slave) {
return 0;
}
memset(&le, 0, sizeof(struct ssd_log_entry));
le.event = event;
le.data.val = data;
ret = sfifo_put(&dev->log_fifo, &le);
if (ret) {
return ret;
}
if (test_bit(SSD_INIT_WORKQ, &dev->state)) {
queue_work(dev->workq, &dev->log_work);
}
return 0;
}
static int ssd_do_swlog(struct ssd_device *dev)
{
struct ssd_log_entry le;
int ret = 0;
memset(&le, 0, sizeof(struct ssd_log_entry));
while (!sfifo_get(&dev->log_fifo, &le)) {
ret = ssd_save_swlog(dev, le.event, le.data.val);
if (ret) {
break;
}
}
return ret;
}
static int __ssd_clear_log(struct ssd_device *dev)
{
uint32_t off, length;
int ret;
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
return 0;
}
if (dev->internal_log.nr_log == 0) {
return 0;
}
mutex_lock(&dev->internal_log_mutex);
off = dev->rom_info.log_base;
length = dev->rom_info.log_sz;
ret = ssd_spi_erase(dev, off, length);
if (ret) {
hio_warn("%s: log erase: failed\n", dev->name);
goto out;
}
dev->internal_log.nr_log = 0;
out:
mutex_unlock(&dev->internal_log_mutex);
return ret;
}
static int ssd_clear_log(struct ssd_device *dev)
{
int ret;
ret = __ssd_clear_log(dev);
if(!ret) {
ssd_gen_swlog(dev, SSD_LOG_CLEAR_LOG, 0);
}
return ret;
}
static int ssd_do_log(struct ssd_device *dev, int ctrl_idx, void *buf)
{
struct ssd_log_entry *le;
struct ssd_log log;
struct timeval tv;
int nr_log = 0;
int level;
int ret = 0;
ret = ssd_read_log(dev, ctrl_idx, buf, &nr_log);
if (ret) {
return ret;
}
do_gettimeofday(&tv);
log.time = tv.tv_sec;
log.ctrl_idx = ctrl_idx;
le = (ssd_log_entry_t *)buf;
while (nr_log > 0) {
memcpy(&log.le, le, sizeof(struct ssd_log_entry));
level = ssd_parse_log(dev, &log, 1);
if (level >= SSD_LOG_LEVEL) {
ssd_save_log(dev, &log);
}
/* set alarm */
if (SSD_LOG_LEVEL_ERR == level) {
ssd_set_alarm(dev);
}
dev->smart.log_info.nr_log++;
if (SSD_LOG_SEU_FAULT != le->event && SSD_LOG_SEU_FAULT1 != le->event) {
dev->smart.log_info.stat[level]++;
} else {
/* SEU fault */
/* log to the volatile log info */
dev->log_info.nr_log++;
dev->log_info.stat[level]++;
/* do something */
dev->reload_fw = 1;
ssd_reg32_write(dev->ctrlp + SSD_RELOAD_FW_REG, SSD_RELOAD_FLAG);
/*dev->readonly = 1;
set_disk_ro(dev->gd, 1);
hio_warn("%s: switched to read-only mode.\n", dev->name);*/
}
/* handle event */
ssd_handle_event(dev, le->event, level);
le++;
nr_log--;
}
return 0;
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
static void ssd_log_worker(void *data)
{
struct ssd_device *dev = (struct ssd_device *)data;
#else
static void ssd_log_worker(struct work_struct *work)
{
struct ssd_device *dev = container_of(work, struct ssd_device, log_work);
#endif
int i;
int ret;
if (!test_bit(SSD_LOG_ERR, &dev->state) && test_bit(SSD_ONLINE, &dev->state)) {
/* alloc log buf */
if (!dev->log_buf) {
dev->log_buf = kmalloc(dev->hw_info.log_sz, GFP_KERNEL);
if (!dev->log_buf) {
hio_warn("%s: ssd_log_worker: no mem\n", dev->name);
return;
}
}
/* get log */
if (test_and_clear_bit(SSD_LOG_HW, &dev->state)) {
for (i=0; i<dev->hw_info.nr_ctrl; i++) {
ret = ssd_do_log(dev, i, dev->log_buf);
if (ret) {
(void)test_and_set_bit(SSD_LOG_ERR, &dev->state);
hio_warn("%s: do log fail\n", dev->name);
}
}
}
}
ret = ssd_do_swlog(dev);
if (ret) {
hio_warn("%s: do swlog fail\n", dev->name);
}
}
static void ssd_cleanup_log(struct ssd_device *dev)
{
if (dev->log_buf) {
kfree(dev->log_buf);
dev->log_buf = NULL;
}
sfifo_free(&dev->log_fifo);
if (dev->internal_log.log) {
vfree(dev->internal_log.log);
dev->internal_log.log = NULL;
}
}
static int ssd_init_log(struct ssd_device *dev)
{
struct ssd_log *log;
uint32_t off, size;
uint32_t len = 0;
int ret = 0;
mutex_init(&dev->internal_log_mutex);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
INIT_WORK(&dev->log_work, ssd_log_worker, dev);
#else
INIT_WORK(&dev->log_work, ssd_log_worker);
#endif
off = dev->rom_info.log_base;
size = dev->rom_info.log_sz;
dev->internal_log.log = vmalloc(size);
if (!dev->internal_log.log) {
ret = -ENOMEM;
goto out_alloc_log;
}
ret = sfifo_alloc(&dev->log_fifo, SSD_LOG_FIFO_SZ, sizeof(struct ssd_log_entry));
if (ret < 0) {
goto out_alloc_log_fifo;
}
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
return 0;
}
log = (struct ssd_log *)dev->internal_log.log;
while (len < size) {
ret = ssd_spi_read(dev, log, off, sizeof(struct ssd_log));
if (ret) {
goto out_read_log;
}
if (log->ctrl_idx == 0xff) {
break;
}
dev->internal_log.nr_log++;
log++;
len += sizeof(struct ssd_log);
off += sizeof(struct ssd_log);
}
return 0;
out_read_log:
sfifo_free(&dev->log_fifo);
out_alloc_log_fifo:
vfree(dev->internal_log.log);
dev->internal_log.log = NULL;
dev->internal_log.nr_log = 0;
out_alloc_log:
/* skip error if not in standard mode */
if (mode != SSD_DRV_MODE_STANDARD) {
ret = 0;
}
return ret;
}
/* work queue */
static void ssd_stop_workq(struct ssd_device *dev)
{
test_and_clear_bit(SSD_INIT_WORKQ, &dev->state);
flush_workqueue(dev->workq);
}
static void ssd_start_workq(struct ssd_device *dev)
{
(void)test_and_set_bit(SSD_INIT_WORKQ, &dev->state);
/* log ? */
queue_work(dev->workq, &dev->log_work);
}
static void ssd_cleanup_workq(struct ssd_device *dev)
{
flush_workqueue(dev->workq);
destroy_workqueue(dev->workq);
dev->workq = NULL;
}
static int ssd_init_workq(struct ssd_device *dev)
{
int ret = 0;
dev->workq = create_singlethread_workqueue(dev->name);
if (!dev->workq) {
ret = -ESRCH;
goto out;
}
out:
return ret;
}
/* rom */
static int ssd_init_rom_info(struct ssd_device *dev)
{
uint32_t val;
mutex_init(&dev->spi_mutex);
mutex_init(&dev->i2c_mutex);
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
/* fix bug: read data to clear status */
(void)ssd_reg32_read(dev->ctrlp + SSD_SPI_REG_RDATA);
dev->rom_info.size = SSD_ROM_SIZE;
dev->rom_info.block_size = SSD_ROM_BLK_SIZE;
dev->rom_info.page_size = SSD_ROM_PAGE_SIZE;
dev->rom_info.bridge_fw_base = SSD_ROM_BRIDGE_FW_BASE;
dev->rom_info.bridge_fw_sz = SSD_ROM_BRIDGE_FW_SIZE;
dev->rom_info.nr_bridge_fw = SSD_ROM_NR_BRIDGE_FW;
dev->rom_info.ctrl_fw_base = SSD_ROM_CTRL_FW_BASE;
dev->rom_info.ctrl_fw_sz = SSD_ROM_CTRL_FW_SIZE;
dev->rom_info.nr_ctrl_fw = SSD_ROM_NR_CTRL_FW;
dev->rom_info.log_sz = SSD_ROM_LOG_SZ;
dev->rom_info.vp_base = SSD_ROM_VP_BASE;
dev->rom_info.label_base = SSD_ROM_LABEL_BASE;
} else if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
val = ssd_reg32_read(dev->ctrlp + SSD_ROM_INFO_REG);
dev->rom_info.size = 0x100000 * (1U << (val & 0xFF));
dev->rom_info.block_size = 0x10000 * (1U << ((val>>8) & 0xFF));
dev->rom_info.page_size = (val>>16) & 0xFFFF;
val = ssd_reg32_read(dev->ctrlp + SSD_ROM_BRIDGE_FW_INFO_REG);
dev->rom_info.bridge_fw_base = dev->rom_info.block_size * (val & 0xFFFF);
dev->rom_info.bridge_fw_sz = dev->rom_info.block_size * ((val>>16) & 0x3FFF);
dev->rom_info.nr_bridge_fw = ((val >> 30) & 0x3) + 1;
val = ssd_reg32_read(dev->ctrlp + SSD_ROM_CTRL_FW_INFO_REG);
dev->rom_info.ctrl_fw_base = dev->rom_info.block_size * (val & 0xFFFF);
dev->rom_info.ctrl_fw_sz = dev->rom_info.block_size * ((val>>16) & 0x3FFF);
dev->rom_info.nr_ctrl_fw = ((val >> 30) & 0x3) + 1;
dev->rom_info.bm_fw_base = dev->rom_info.ctrl_fw_base + (dev->rom_info.nr_ctrl_fw * dev->rom_info.ctrl_fw_sz);
dev->rom_info.bm_fw_sz = SSD_PV3_ROM_BM_FW_SZ;
dev->rom_info.nr_bm_fw = SSD_PV3_ROM_NR_BM_FW;
dev->rom_info.log_base = dev->rom_info.bm_fw_base + (dev->rom_info.nr_bm_fw * dev->rom_info.bm_fw_sz);
dev->rom_info.log_sz = SSD_ROM_LOG_SZ;
dev->rom_info.smart_base = dev->rom_info.log_base + dev->rom_info.log_sz;
dev->rom_info.smart_sz = SSD_PV3_ROM_SMART_SZ;
dev->rom_info.nr_smart = SSD_PV3_ROM_NR_SMART;
val = ssd_reg32_read(dev->ctrlp + SSD_ROM_VP_INFO_REG);
dev->rom_info.vp_base = dev->rom_info.block_size * val;
dev->rom_info.label_base = dev->rom_info.vp_base + dev->rom_info.block_size;
if (dev->rom_info.label_base >= dev->rom_info.size) {
dev->rom_info.label_base = dev->rom_info.vp_base - dev->rom_info.block_size;
}
} else {
val = ssd_reg32_read(dev->ctrlp + SSD_ROM_INFO_REG);
dev->rom_info.size = 0x100000 * (1U << (val & 0xFF));
dev->rom_info.block_size = 0x10000 * (1U << ((val>>8) & 0xFF));
dev->rom_info.page_size = (val>>16) & 0xFFFF;
val = ssd_reg32_read(dev->ctrlp + SSD_ROM_BRIDGE_FW_INFO_REG);
dev->rom_info.bridge_fw_base = dev->rom_info.block_size * (val & 0xFFFF);
dev->rom_info.bridge_fw_sz = dev->rom_info.block_size * ((val>>16) & 0x3FFF);
dev->rom_info.nr_bridge_fw = ((val >> 30) & 0x3) + 1;
val = ssd_reg32_read(dev->ctrlp + SSD_ROM_CTRL_FW_INFO_REG);
dev->rom_info.ctrl_fw_base = dev->rom_info.block_size * (val & 0xFFFF);
dev->rom_info.ctrl_fw_sz = dev->rom_info.block_size * ((val>>16) & 0x3FFF);
dev->rom_info.nr_ctrl_fw = ((val >> 30) & 0x3) + 1;
val = ssd_reg32_read(dev->ctrlp + SSD_ROM_VP_INFO_REG);
dev->rom_info.vp_base = dev->rom_info.block_size * val;
dev->rom_info.label_base = dev->rom_info.vp_base - SSD_PV3_2_ROM_SEC_SZ;
dev->rom_info.nr_smart = SSD_PV3_ROM_NR_SMART;
dev->rom_info.smart_sz = SSD_PV3_2_ROM_SEC_SZ;
dev->rom_info.smart_base = dev->rom_info.label_base - (dev->rom_info.smart_sz * dev->rom_info.nr_smart);
if (dev->rom_info.smart_sz > dev->rom_info.block_size) {
dev->rom_info.smart_sz = dev->rom_info.block_size;
}
dev->rom_info.log_sz = SSD_PV3_2_ROM_LOG_SZ;
dev->rom_info.log_base = dev->rom_info.smart_base - dev->rom_info.log_sz;
}
return ssd_init_spi(dev);
}
/* smart */
static int ssd_update_smart(struct ssd_device *dev, struct ssd_smart *smart)
{
struct timeval tv;
uint64_t run_time;
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27))
struct hd_struct *part;
int cpu;
#endif
int i, j;
int ret = 0;
if (!test_bit(SSD_INIT_BD, &dev->state)) {
return 0;
}
do_gettimeofday(&tv);
if ((uint64_t)tv.tv_sec < dev->uptime) {
run_time = 0;
} else {
run_time = tv.tv_sec - dev->uptime;
}
/* avoid frequently update */
if (run_time >= 60) {
ret = 1;
}
/* io stat */
smart->io_stat.run_time += run_time;
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27))
cpu = part_stat_lock();
part = &dev->gd->part0;
part_round_stats(cpu, part);
part_stat_unlock();
smart->io_stat.nr_read += part_stat_read(part, ios[READ]);
smart->io_stat.nr_write += part_stat_read(part, ios[WRITE]);
smart->io_stat.rsectors += part_stat_read(part, sectors[READ]);
smart->io_stat.wsectors += part_stat_read(part, sectors[WRITE]);
#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,14))
preempt_disable();
disk_round_stats(dev->gd);
preempt_enable();
smart->io_stat.nr_read += disk_stat_read(dev->gd, ios[READ]);
smart->io_stat.nr_write += disk_stat_read(dev->gd, ios[WRITE]);
smart->io_stat.rsectors += disk_stat_read(dev->gd, sectors[READ]);
smart->io_stat.wsectors += disk_stat_read(dev->gd, sectors[WRITE]);
#else
preempt_disable();
disk_round_stats(dev->gd);
preempt_enable();
smart->io_stat.nr_read += disk_stat_read(dev->gd, reads);
smart->io_stat.nr_write += disk_stat_read(dev->gd, writes);
smart->io_stat.rsectors += disk_stat_read(dev->gd, read_sectors);
smart->io_stat.wsectors += disk_stat_read(dev->gd, write_sectors);
#endif
smart->io_stat.nr_to += atomic_read(&dev->tocnt);
for (i=0; i<dev->nr_queue; i++) {
smart->io_stat.nr_rwerr += dev->queue[i].io_stat.nr_rwerr;
smart->io_stat.nr_ioerr += dev->queue[i].io_stat.nr_ioerr;
}
for (i=0; i<dev->nr_queue; i++) {
for (j=0; j<SSD_ECC_MAX_FLIP; j++) {
smart->ecc_info.bitflip[j] += dev->queue[i].ecc_info.bitflip[j];
}
}
//dev->uptime = tv.tv_sec;
return ret;
}
static int ssd_clear_smart(struct ssd_device *dev)
{
struct timeval tv;
uint64_t sversion;
uint32_t off, length;
int i;
int ret;
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
return 0;
}
/* clear smart */
off = dev->rom_info.smart_base;
length = dev->rom_info.smart_sz * dev->rom_info.nr_smart;
ret = ssd_spi_erase(dev, off, length);
if (ret) {
hio_warn("%s: info erase: failed\n", dev->name);
goto out;
}
sversion = dev->smart.version;
memset(&dev->smart, 0, sizeof(struct ssd_smart));
dev->smart.version = sversion + 1;
dev->smart.magic = SSD_SMART_MAGIC;
/* clear all tmp acc */
for (i=0; i<dev->nr_queue; i++) {
memset(&(dev->queue[i].io_stat), 0, sizeof(struct ssd_io_stat));
memset(&(dev->queue[i].ecc_info), 0, sizeof(struct ssd_ecc_info));
}
atomic_set(&dev->tocnt, 0);
/* clear tmp log info */
memset(&dev->log_info, 0, sizeof(struct ssd_log_info));
do_gettimeofday(&tv);
dev->uptime = tv.tv_sec;
/* clear alarm ? */
//ssd_clear_alarm(dev);
out:
return ret;
}
static int ssd_save_smart(struct ssd_device *dev)
{
uint32_t off, size;
int i;
int ret = 0;
if (unlikely(mode != SSD_DRV_MODE_STANDARD))
return 0;
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
return 0;
}
if (!ssd_update_smart(dev, &dev->smart)) {
return 0;
}
dev->smart.version++;
for (i=0; i<dev->rom_info.nr_smart; i++) {
off = dev->rom_info.smart_base + (dev->rom_info.smart_sz * i);
size = dev->rom_info.smart_sz;
ret = ssd_spi_erase(dev, off, size);
if (ret) {
hio_warn("%s: info erase failed\n", dev->name);
goto out;
}
size = sizeof(struct ssd_smart);
ret = ssd_spi_write(dev, &dev->smart, off, size);
if (ret) {
hio_warn("%s: info write failed\n", dev->name);
goto out;
}
//xx
}
out:
return ret;
}
static int ssd_init_smart(struct ssd_device *dev)
{
struct ssd_smart *smart;
struct timeval tv;
uint32_t off, size;
int i;
int ret = 0;
do_gettimeofday(&tv);
dev->uptime = tv.tv_sec;
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
return 0;
}
smart = kmalloc(sizeof(struct ssd_smart) * SSD_ROM_NR_SMART_MAX, GFP_KERNEL);
if (!smart) {
ret = -ENOMEM;
goto out_nomem;
}
memset(&dev->smart, 0, sizeof(struct ssd_smart));
/* read smart */
for (i=0; i<dev->rom_info.nr_smart; i++) {
memset(&smart[i], 0, sizeof(struct ssd_smart));
off = dev->rom_info.smart_base + (dev->rom_info.smart_sz * i);
size = sizeof(struct ssd_smart);
ret = ssd_spi_read(dev, &smart[i], off, size);
if (ret) {
hio_warn("%s: info read failed\n", dev->name);
goto out;
}
if (smart[i].magic != SSD_SMART_MAGIC) {
smart[i].magic = 0;
smart[i].version = 0;
continue;
}
if (smart[i].version > dev->smart.version) {
memcpy(&dev->smart, &smart[i], sizeof(struct ssd_smart));
}
}
if (dev->smart.magic != SSD_SMART_MAGIC) {
/* first time power up */
dev->smart.magic = SSD_SMART_MAGIC;
dev->smart.version = 1;
}
/* check log info */
{
struct ssd_log_info log_info;
struct ssd_log *log = (struct ssd_log *)dev->internal_log.log;
memset(&log_info, 0, sizeof(struct ssd_log_info));
while (log_info.nr_log < dev->internal_log.nr_log) {
/* skip the volatile log info */
if (SSD_LOG_SEU_FAULT != log->le.event && SSD_LOG_SEU_FAULT1 != log->le.event) {
log_info.stat[ssd_parse_log(dev, log, 0)]++;
}
log_info.nr_log++;
log++;
}
/* check */
for (i=(SSD_LOG_NR_LEVEL-1); i>=0; i--) {
if (log_info.stat[i] > dev->smart.log_info.stat[i]) {
/* unclean */
memcpy(&dev->smart.log_info, &log_info, sizeof(struct ssd_log_info));
dev->smart.version++;
break;
}
}
}
for (i=0; i<dev->rom_info.nr_smart; i++) {
if (smart[i].magic == SSD_SMART_MAGIC && smart[i].version == dev->smart.version) {
continue;
}
off = dev->rom_info.smart_base + (dev->rom_info.smart_sz * i);
size = dev->rom_info.smart_sz;
ret = ssd_spi_erase(dev, off, size);
if (ret) {
hio_warn("%s: info erase failed\n", dev->name);
goto out;
}
size = sizeof(struct ssd_smart);
ret = ssd_spi_write(dev, &dev->smart, off, size);
if (ret) {
hio_warn("%s: info write failed\n", dev->name);
goto out;
}
//xx
}
/* sync smart with alarm led */
if (dev->smart.io_stat.nr_to || dev->smart.io_stat.nr_rwerr || dev->smart.log_info.stat[SSD_LOG_LEVEL_ERR]) {
hio_warn("%s: some fault found in the history info\n", dev->name);
ssd_set_alarm(dev);
}
out:
kfree(smart);
out_nomem:
/* skip error if not in standard mode */
if (mode != SSD_DRV_MODE_STANDARD) {
ret = 0;
}
return ret;
}
/* bm */
static int __ssd_bm_get_version(struct ssd_device *dev, uint16_t *ver)
{
struct ssd_bm_manufacturer_data bm_md = {0};
uint16_t sc_id = SSD_BM_SYSTEM_DATA_SUBCLASS_ID;
uint8_t cmd;
int ret = 0;
if (!dev || !ver) {
return -EINVAL;
}
mutex_lock(&dev->bm_mutex);
cmd = SSD_BM_DATA_FLASH_SUBCLASS_ID;
ret = ssd_smbus_write_word(dev, SSD_BM_SLAVE_ADDRESS, cmd, (uint8_t *)&sc_id);
if (ret) {
goto out;
}
cmd = SSD_BM_DATA_FLASH_SUBCLASS_ID_PAGE1;
ret = ssd_smbus_read_block(dev, SSD_BM_SLAVE_ADDRESS, cmd, sizeof(struct ssd_bm_manufacturer_data), (uint8_t *)&bm_md);
if (ret) {
goto out;
}
if (bm_md.firmware_ver & 0xF000) {
ret = -EIO;
goto out;
}
*ver = bm_md.firmware_ver;
out:
mutex_unlock(&dev->bm_mutex);
return ret;
}
static int ssd_bm_get_version(struct ssd_device *dev, uint16_t *ver)
{
uint16_t tmp = 0;
int i = SSD_BM_RETRY_MAX;
int ret = 0;
while (i-- > 0) {
ret = __ssd_bm_get_version(dev, &tmp);
if (!ret) {
break;
}
}
if (ret) {
return ret;
}
*ver = tmp;
return 0;
}
static int __ssd_bm_nr_cap(struct ssd_device *dev, int *nr_cap)
{
struct ssd_bm_configuration_registers bm_cr;
uint16_t sc_id = SSD_BM_CONFIGURATION_REGISTERS_ID;
uint8_t cmd;
int ret;
mutex_lock(&dev->bm_mutex);
cmd = SSD_BM_DATA_FLASH_SUBCLASS_ID;
ret = ssd_smbus_write_word(dev, SSD_BM_SLAVE_ADDRESS, cmd, (uint8_t *)&sc_id);
if (ret) {
goto out;
}
cmd = SSD_BM_DATA_FLASH_SUBCLASS_ID_PAGE1;
ret = ssd_smbus_read_block(dev, SSD_BM_SLAVE_ADDRESS, cmd, sizeof(struct ssd_bm_configuration_registers), (uint8_t *)&bm_cr);
if (ret) {
goto out;
}
if (bm_cr.operation_cfg.cc == 0 || bm_cr.operation_cfg.cc > 4) {
ret = -EIO;
goto out;
}
*nr_cap = bm_cr.operation_cfg.cc + 1;
out:
mutex_unlock(&dev->bm_mutex);
return ret;
}
static int ssd_bm_nr_cap(struct ssd_device *dev, int *nr_cap)
{
int tmp = 0;
int i = SSD_BM_RETRY_MAX;
int ret = 0;
while (i-- > 0) {
ret = __ssd_bm_nr_cap(dev, &tmp);
if (!ret) {
break;
}
}
if (ret) {
return ret;
}
*nr_cap = tmp;
return 0;
}
static int ssd_bm_enter_cap_learning(struct ssd_device *dev)
{
uint16_t buf = SSD_BM_ENTER_CAP_LEARNING;
uint8_t cmd = SSD_BM_MANUFACTURERACCESS;
int ret;
ret = ssd_smbus_write_word(dev, SSD_BM_SLAVE_ADDRESS, cmd, (uint8_t *)&buf);
if (ret) {
goto out;
}
out:
return ret;
}
static int ssd_bm_get_sfstatus(struct ssd_device *dev, uint16_t *status)
{
uint16_t val = 0;
uint8_t cmd = SSD_BM_SAFETYSTATUS;
int ret;
ret = ssd_smbus_read_word(dev, SSD_BM_SLAVE_ADDRESS, cmd, (uint8_t *)&val);
if (ret) {
goto out;
}
*status = val;
out:
return ret;
}
static int ssd_bm_get_opstatus(struct ssd_device *dev, uint16_t *status)
{
uint16_t val = 0;
uint8_t cmd = SSD_BM_OPERATIONSTATUS;
int ret;
ret = ssd_smbus_read_word(dev, SSD_BM_SLAVE_ADDRESS, cmd, (uint8_t *)&val);
if (ret) {
goto out;
}
*status = val;
out:
return ret;
}
static int ssd_get_bmstruct(struct ssd_device *dev, struct ssd_bm *bm_status_out)
{
struct sbs_cmd *bm_sbs = ssd_bm_sbs;
struct ssd_bm bm_status;
uint8_t buf[2] = {0, };
uint16_t val = 0;
uint16_t cval;
int ret = 0;
memset(&bm_status, 0, sizeof(struct ssd_bm));
while (bm_sbs->desc != NULL) {
switch (bm_sbs->size) {
case SBS_SIZE_BYTE:
ret = ssd_smbus_read_byte(dev, SSD_BM_SLAVE_ADDRESS, bm_sbs->cmd, buf);
if (ret) {
//printf("Error: smbus read byte %#x\n", bm_sbs->cmd);
goto out;
}
val = buf[0];
break;
case SBS_SIZE_WORD:
ret = ssd_smbus_read_word(dev, SSD_BM_SLAVE_ADDRESS, bm_sbs->cmd, (uint8_t *)&val);
if (ret) {
//printf("Error: smbus read word %#x\n", bm_sbs->cmd);
goto out;
}
//val = *(uint16_t *)buf;
break;
default:
ret = -1;
goto out;
break;
}
switch (bm_sbs->unit) {
case SBS_UNIT_VALUE:
*(uint16_t *)bm_var(&bm_status, bm_sbs->off) = val & bm_sbs->mask;
break;
case SBS_UNIT_TEMPERATURE:
cval = (uint16_t)(val - 2731) / 10;
*(uint16_t *)bm_var(&bm_status, bm_sbs->off) = cval;
break;
case SBS_UNIT_VOLTAGE:
*(uint16_t *)bm_var(&bm_status, bm_sbs->off) = val;
break;
case SBS_UNIT_CURRENT:
*(uint16_t *)bm_var(&bm_status, bm_sbs->off) = val;
break;
case SBS_UNIT_ESR:
*(uint16_t *)bm_var(&bm_status, bm_sbs->off) = val;
break;
case SBS_UNIT_PERCENT:
*(uint16_t *)bm_var(&bm_status, bm_sbs->off) = val;
break;
case SBS_UNIT_CAPACITANCE:
*(uint16_t *)bm_var(&bm_status, bm_sbs->off) = val;
break;
default:
ret = -1;
goto out;
break;
}
bm_sbs++;
}
memcpy(bm_status_out, &bm_status, sizeof(struct ssd_bm));
out:
return ret;
}
static int __ssd_bm_status(struct ssd_device *dev, int *status)
{
struct ssd_bm bm_status = {0};
int nr_cap = 0;
int i;
int ret = 0;
ret = ssd_get_bmstruct(dev, &bm_status);
if (ret) {
goto out;
}
/* capacitor voltage */
ret = ssd_bm_nr_cap(dev, &nr_cap);
if (ret) {
goto out;
}
for (i=0; i<nr_cap; i++) {
if (bm_status.cap_volt[i] < SSD_BM_CAP_VOLT_MIN) {
*status = SSD_BMSTATUS_WARNING;
goto out;
}
}
/* Safety Status */
if (bm_status.sf_status) {
*status = SSD_BMSTATUS_WARNING;
goto out;
}
/* charge status */
if (!((bm_status.op_status >> 12) & 0x1)) {
*status = SSD_BMSTATUS_CHARGING;
}else{
*status = SSD_BMSTATUS_OK;
}
out:
return ret;
}
static void ssd_set_flush_timeout(struct ssd_device *dev, int mode);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
static void ssd_bm_worker(void *data)
{
struct ssd_device *dev = (struct ssd_device *)data;
#else
static void ssd_bm_worker(struct work_struct *work)
{
struct ssd_device *dev = container_of(work, struct ssd_device, bm_work);
#endif
uint16_t opstatus;
int ret = 0;
if (mode != SSD_DRV_MODE_STANDARD) {
return;
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_1_1) {
return;
}
if (dev->hw_info_ext.plp_type != SSD_PLP_SCAP) {
return;
}
ret = ssd_bm_get_opstatus(dev, &opstatus);
if (ret) {
hio_warn("%s: get bm operationstatus failed\n", dev->name);
return;
}
/* need cap learning ? */
if (!(opstatus & 0xF0)) {
ret = ssd_bm_enter_cap_learning(dev);
if (ret) {
hio_warn("%s: enter capacitance learning failed\n", dev->name);
return;
}
}
}
static void ssd_bm_routine_start(void *data)
{
struct ssd_device *dev;
if (!data) {
return;
}
dev = data;
if (test_bit(SSD_INIT_WORKQ, &dev->state)) {
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
queue_work(dev->workq, &dev->bm_work);
} else {
queue_work(dev->workq, &dev->capmon_work);
}
}
}
/* CAP */
static int ssd_do_cap_learn(struct ssd_device *dev, uint32_t *cap)
{
uint32_t u1, u2, t;
uint16_t val = 0;
int wait = 0;
int ret = 0;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
*cap = 0;
return 0;
}
if (dev->hw_info_ext.form_factor == SSD_FORM_FACTOR_FHHL && dev->hw_info.pcb_ver < 'B') {
*cap = 0;
return 0;
}
/* make sure the lm80 voltage value is updated */
msleep(SSD_LM80_CONV_INTERVAL);
/* check if full charged */
wait = 0;
for (;;) {
ret = ssd_smbus_read_word(dev, SSD_SENSOR_LM80_SADDRESS, SSD_PL_CAP_U1, (uint8_t *)&val);
if (ret) {
if (!test_and_set_bit(SSD_HWMON_SENSOR(SSD_SENSOR_LM80), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_SENSOR_FAULT, SSD_SENSOR_LM80_SADDRESS);
}
goto out;
}
u1 = SSD_LM80_CONVERT_VOLT(u16_swap(val));
if (SSD_PL_CAP_VOLT(u1) >= SSD_PL_CAP_VOLT_FULL) {
break;
}
wait++;
if (wait > SSD_PL_CAP_CHARGE_MAX_WAIT) {
ret = -ETIMEDOUT;
goto out;
}
msleep(SSD_PL_CAP_CHARGE_WAIT);
}
ret = ssd_smbus_read_word(dev, SSD_SENSOR_LM80_SADDRESS, SSD_PL_CAP_U2, (uint8_t *)&val);
if (ret) {
if (!test_and_set_bit(SSD_HWMON_SENSOR(SSD_SENSOR_LM80), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_SENSOR_FAULT, SSD_SENSOR_LM80_SADDRESS);
}
goto out;
}
u2 = SSD_LM80_CONVERT_VOLT(u16_swap(val));
if (u1 == u2) {
ret = -EINVAL;
goto out;
}
/* enter cap learn */
ssd_reg32_write(dev->ctrlp + SSD_PL_CAP_LEARN_REG, 0x1);
wait = 0;
for (;;) {
msleep(SSD_PL_CAP_LEARN_WAIT);
t = ssd_reg32_read(dev->ctrlp + SSD_PL_CAP_LEARN_REG);
if (!((t >> 1) & 0x1)) {
break;
}
wait++;
if (wait > SSD_PL_CAP_LEARN_MAX_WAIT) {
ret = -ETIMEDOUT;
goto out;
}
}
if ((t >> 4) & 0x1) {
ret = -ETIMEDOUT;
goto out;
}
t = (t >> 8);
if (0 == t) {
ret = -EINVAL;
goto out;
}
*cap = SSD_PL_CAP_LEARN(u1, u2, t);
out:
return ret;
}
static int ssd_cap_learn(struct ssd_device *dev, uint32_t *cap)
{
int ret = 0;
if (!dev || !cap) {
return -EINVAL;
}
mutex_lock(&dev->bm_mutex);
ssd_stop_workq(dev);
ret = ssd_do_cap_learn(dev, cap);
if (ret) {
ssd_gen_swlog(dev, SSD_LOG_CAP_LEARN_FAULT, 0);
goto out;
}
ssd_gen_swlog(dev, SSD_LOG_CAP_STATUS, *cap);
out:
ssd_start_workq(dev);
mutex_unlock(&dev->bm_mutex);
return ret;
}
static int ssd_check_pl_cap(struct ssd_device *dev)
{
uint32_t u1;
uint16_t val = 0;
uint8_t low = 0;
int wait = 0;
int ret = 0;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
return 0;
}
if (dev->hw_info_ext.form_factor == SSD_FORM_FACTOR_FHHL && dev->hw_info.pcb_ver < 'B') {
return 0;
}
/* cap ready ? */
wait = 0;
for (;;) {
ret = ssd_smbus_read_word(dev, SSD_SENSOR_LM80_SADDRESS, SSD_PL_CAP_U1, (uint8_t *)&val);
if (ret) {
if (!test_and_set_bit(SSD_HWMON_SENSOR(SSD_SENSOR_LM80), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_SENSOR_FAULT, SSD_SENSOR_LM80_SADDRESS);
}
goto out;
}
u1 = SSD_LM80_CONVERT_VOLT(u16_swap(val));
if (SSD_PL_CAP_VOLT(u1) >= SSD_PL_CAP_VOLT_READY) {
break;
}
wait++;
if (wait > SSD_PL_CAP_CHARGE_MAX_WAIT) {
ret = -ETIMEDOUT;
ssd_gen_swlog(dev, SSD_LOG_CAP_VOLT_FAULT, SSD_PL_CAP_VOLT(u1));
goto out;
}
msleep(SSD_PL_CAP_CHARGE_WAIT);
}
low = ssd_lm80_limit[SSD_LM80_IN_CAP].low;
ret = ssd_smbus_write_byte(dev, SSD_SENSOR_LM80_SADDRESS, SSD_LM80_REG_IN_MIN(SSD_LM80_IN_CAP), &low);
if (ret) {
goto out;
}
/* enable cap INx */
ret = ssd_lm80_enable_in(dev, SSD_SENSOR_LM80_SADDRESS, SSD_LM80_IN_CAP);
if (ret) {
if (!test_and_set_bit(SSD_HWMON_SENSOR(SSD_SENSOR_LM80), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_SENSOR_FAULT, SSD_SENSOR_LM80_SADDRESS);
}
goto out;
}
out:
/* skip error if not in standard mode */
if (mode != SSD_DRV_MODE_STANDARD) {
ret = 0;
}
return ret;
}
static int ssd_check_pl_cap_fast(struct ssd_device *dev)
{
uint32_t u1;
uint16_t val = 0;
int ret = 0;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
return 0;
}
if (dev->hw_info_ext.form_factor == SSD_FORM_FACTOR_FHHL && dev->hw_info.pcb_ver < 'B') {
return 0;
}
/* cap ready ? */
ret = ssd_smbus_read_word(dev, SSD_SENSOR_LM80_SADDRESS, SSD_PL_CAP_U1, (uint8_t *)&val);
if (ret) {
goto out;
}
u1 = SSD_LM80_CONVERT_VOLT(u16_swap(val));
if (SSD_PL_CAP_VOLT(u1) < SSD_PL_CAP_VOLT_READY) {
ret = 1;
}
out:
return ret;
}
static int ssd_init_pl_cap(struct ssd_device *dev)
{
int ret = 0;
/* set here: user write mode */
dev->user_wmode = wmode;
mutex_init(&dev->bm_mutex);
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
uint32_t val;
val = ssd_reg32_read(dev->ctrlp + SSD_BM_FAULT_REG);
if ((val >> 1) & 0x1) {
(void)test_and_set_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon);
}
} else {
ret = ssd_check_pl_cap(dev);
if (ret) {
(void)test_and_set_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon);
}
}
return 0;
}
/* label */
static void __end_str(char *str, int len)
{
int i;
for(i=0; i<len; i++) {
if (*(str+i) == '\0')
return;
}
*str = '\0';
}
static int ssd_init_label(struct ssd_device *dev)
{
uint32_t off;
uint32_t size;
int ret;
/* label location */
off = dev->rom_info.label_base;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
size = sizeof(struct ssd_label);
/* read label */
ret = ssd_spi_read(dev, &dev->label, off, size);
if (ret) {
memset(&dev->label, 0, size);
goto out;
}
__end_str(dev->label.date, SSD_LABEL_FIELD_SZ);
__end_str(dev->label.sn, SSD_LABEL_FIELD_SZ);
__end_str(dev->label.part, SSD_LABEL_FIELD_SZ);
__end_str(dev->label.desc, SSD_LABEL_FIELD_SZ);
__end_str(dev->label.other, SSD_LABEL_FIELD_SZ);
__end_str(dev->label.maf, SSD_LABEL_FIELD_SZ);
} else {
size = sizeof(struct ssd_labelv3);
/* read label */
ret = ssd_spi_read(dev, &dev->labelv3, off, size);
if (ret) {
memset(&dev->labelv3, 0, size);
goto out;
}
__end_str(dev->labelv3.boardtype, SSD_LABEL_FIELD_SZ);
__end_str(dev->labelv3.barcode, SSD_LABEL_FIELD_SZ);
__end_str(dev->labelv3.item, SSD_LABEL_FIELD_SZ);
__end_str(dev->labelv3.description, SSD_LABEL_DESC_SZ);
__end_str(dev->labelv3.manufactured, SSD_LABEL_FIELD_SZ);
__end_str(dev->labelv3.vendorname, SSD_LABEL_FIELD_SZ);
__end_str(dev->labelv3.issuenumber, SSD_LABEL_FIELD_SZ);
__end_str(dev->labelv3.cleicode, SSD_LABEL_FIELD_SZ);
__end_str(dev->labelv3.bom, SSD_LABEL_FIELD_SZ);
}
out:
/* skip error if not in standard mode */
if (mode != SSD_DRV_MODE_STANDARD) {
ret = 0;
}
return ret;
}
int ssd_get_label(struct block_device *bdev, struct ssd_label *label)
{
struct ssd_device *dev;
if (!bdev || !label || !(bdev->bd_disk)) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
memset(label, 0, sizeof(struct ssd_label));
memcpy(label->date, dev->labelv3.manufactured, SSD_LABEL_FIELD_SZ);
memcpy(label->sn, dev->labelv3.barcode, SSD_LABEL_FIELD_SZ);
memcpy(label->desc, dev->labelv3.boardtype, SSD_LABEL_FIELD_SZ);
memcpy(label->maf, dev->labelv3.vendorname, SSD_LABEL_FIELD_SZ);
} else {
memcpy(label, &dev->label, sizeof(struct ssd_label));
}
return 0;
}
static int __ssd_get_version(struct ssd_device *dev, struct ssd_version_info *ver)
{
uint16_t bm_ver = 0;
int ret = 0;
if (dev->protocol_info.ver > SSD_PROTOCOL_V3 && dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
ret = ssd_bm_get_version(dev, &bm_ver);
if(ret){
goto out;
}
}
ver->bridge_ver = dev->hw_info.bridge_ver;
ver->ctrl_ver = dev->hw_info.ctrl_ver;
ver->bm_ver = bm_ver;
ver->pcb_ver = dev->hw_info.pcb_ver;
ver->upper_pcb_ver = dev->hw_info.upper_pcb_ver;
out:
return ret;
}
int ssd_get_version(struct block_device *bdev, struct ssd_version_info *ver)
{
struct ssd_device *dev;
int ret;
if (!bdev || !ver || !(bdev->bd_disk)) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
mutex_lock(&dev->fw_mutex);
ret = __ssd_get_version(dev, ver);
mutex_unlock(&dev->fw_mutex);
return ret;
}
static int __ssd_get_temperature(struct ssd_device *dev, int *temp)
{
uint64_t val;
uint32_t off;
int max = -300;
int cur;
int i;
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
*temp = 0;
return 0;
}
if (finject) {
if (dev->db_info.type == SSD_DEBUG_LOG &&
(dev->db_info.data.log.event == SSD_LOG_OVER_TEMP ||
dev->db_info.data.log.event == SSD_LOG_NORMAL_TEMP ||
dev->db_info.data.log.event == SSD_LOG_WARN_TEMP)) {
*temp = (int)dev->db_info.data.log.extra;
return 0;
}
}
for (i=0; i<dev->hw_info.nr_ctrl; i++) {
off = SSD_CTRL_TEMP_REG0 + i * sizeof(uint64_t);
val = ssd_reg_read(dev->ctrlp + off);
if (val == 0xffffffffffffffffull) {
continue;
}
cur = (int)CUR_TEMP(val);
if (cur >= max) {
max = cur;
}
}
*temp = max;
return 0;
}
int ssd_get_temperature(struct block_device *bdev, int *temp)
{
struct ssd_device *dev;
int ret;
if (!bdev || !temp || !(bdev->bd_disk)) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
mutex_lock(&dev->fw_mutex);
ret = __ssd_get_temperature(dev, temp);
mutex_unlock(&dev->fw_mutex);
return ret;
}
int ssd_set_otprotect(struct block_device *bdev, int otprotect)
{
struct ssd_device *dev;
if (!bdev || !(bdev->bd_disk)) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
ssd_set_ot_protect(dev, !!otprotect);
return 0;
}
int ssd_bm_status(struct block_device *bdev, int *status)
{
struct ssd_device *dev;
int ret = 0;
if (!bdev || !status || !(bdev->bd_disk)) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
mutex_lock(&dev->fw_mutex);
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
if (test_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon)) {
*status = SSD_BMSTATUS_WARNING;
} else {
*status = SSD_BMSTATUS_OK;
}
} else if(dev->protocol_info.ver > SSD_PROTOCOL_V3) {
ret = __ssd_bm_status(dev, status);
} else {
*status = SSD_BMSTATUS_OK;
}
mutex_unlock(&dev->fw_mutex);
return ret;
}
int ssd_get_pciaddr(struct block_device *bdev, struct pci_addr *paddr)
{
struct ssd_device *dev;
if (!bdev || !paddr || !bdev->bd_disk) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
paddr->domain = pci_domain_nr(dev->pdev->bus);
paddr->bus = dev->pdev->bus->number;
paddr->slot = PCI_SLOT(dev->pdev->devfn);
paddr->func= PCI_FUNC(dev->pdev->devfn);
return 0;
}
/* acc */
static int ssd_bb_acc(struct ssd_device *dev, struct ssd_acc_info *acc)
{
uint32_t val;
int ctrl, chip;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_1_1) {
return -EOPNOTSUPP;
}
acc->threshold_l1 = ssd_reg32_read(dev->ctrlp + SSD_BB_THRESHOLD_L1_REG);
if (0xffffffffull == acc->threshold_l1) {
return -EIO;
}
acc->threshold_l2 = ssd_reg32_read(dev->ctrlp + SSD_BB_THRESHOLD_L2_REG);
if (0xffffffffull == acc->threshold_l2) {
return -EIO;
}
acc->val = 0;
for (ctrl=0; ctrl<dev->hw_info.nr_ctrl; ctrl++) {
for (chip=0; chip<dev->hw_info.nr_chip; chip++) {
val = ssd_reg32_read(dev->ctrlp + SSD_BB_ACC_REG0 + (SSD_CTRL_REG_ZONE_SZ * ctrl) + (SSD_BB_ACC_REG_SZ * chip));
if (0xffffffffull == acc->val) {
return -EIO;
}
if (val > acc->val) {
acc->val = val;
}
}
}
return 0;
}
static int ssd_ec_acc(struct ssd_device *dev, struct ssd_acc_info *acc)
{
uint32_t val;
int ctrl, chip;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_1_1) {
return -EOPNOTSUPP;
}
acc->threshold_l1 = ssd_reg32_read(dev->ctrlp + SSD_EC_THRESHOLD_L1_REG);
if (0xffffffffull == acc->threshold_l1) {
return -EIO;
}
acc->threshold_l2 = ssd_reg32_read(dev->ctrlp + SSD_EC_THRESHOLD_L2_REG);
if (0xffffffffull == acc->threshold_l2) {
return -EIO;
}
acc->val = 0;
for (ctrl=0; ctrl<dev->hw_info.nr_ctrl; ctrl++) {
for (chip=0; chip<dev->hw_info.nr_chip; chip++) {
val = ssd_reg32_read(dev->ctrlp + SSD_EC_ACC_REG0 + (SSD_CTRL_REG_ZONE_SZ * ctrl) + (SSD_EC_ACC_REG_SZ * chip));
if (0xffffffffull == acc->val) {
return -EIO;
}
if (val > acc->val) {
acc->val = val;
}
}
}
return 0;
}
/* ram r&w */
static int ssd_ram_read_4k(struct ssd_device *dev, void *buf, size_t length, loff_t ofs, int ctrl_idx)
{
struct ssd_ram_op_msg *msg;
dma_addr_t buf_dma;
size_t len = length;
loff_t ofs_w = ofs;
int ret = 0;
if (ctrl_idx >= dev->hw_info.nr_ctrl || (uint64_t)(ofs + length) > dev->hw_info.ram_size
|| !length || length > dev->hw_info.ram_max_len
|| (length & (dev->hw_info.ram_align - 1)) != 0 || ((uint64_t)ofs & (dev->hw_info.ram_align - 1)) != 0) {
return -EINVAL;
}
len /= dev->hw_info.ram_align;
do_div(ofs_w, dev->hw_info.ram_align);
buf_dma = pci_map_single(dev->pdev, buf, length, PCI_DMA_FROMDEVICE);
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,26))
ret = dma_mapping_error(buf_dma);
#else
ret = dma_mapping_error(&(dev->pdev->dev), buf_dma);
#endif
if (ret) {
hio_warn("%s: unable to map read DMA buffer\n", dev->name);
goto out_dma_mapping;
}
msg = (struct ssd_ram_op_msg *)ssd_get_dmsg(dev);
msg->fun = SSD_FUNC_RAM_READ;
msg->ctrl_idx = ctrl_idx;
msg->start = (uint32_t)ofs_w;
msg->length = len;
msg->buf = buf_dma;
ret = ssd_do_request(dev, READ, msg, NULL);
ssd_put_dmsg(msg);
pci_unmap_single(dev->pdev, buf_dma, length, PCI_DMA_FROMDEVICE);
out_dma_mapping:
return ret;
}
static int ssd_ram_write_4k(struct ssd_device *dev, void *buf, size_t length, loff_t ofs, int ctrl_idx)
{
struct ssd_ram_op_msg *msg;
dma_addr_t buf_dma;
size_t len = length;
loff_t ofs_w = ofs;
int ret = 0;
if (ctrl_idx >= dev->hw_info.nr_ctrl || (uint64_t)(ofs + length) > dev->hw_info.ram_size
|| !length || length > dev->hw_info.ram_max_len
|| (length & (dev->hw_info.ram_align - 1)) != 0 || ((uint64_t)ofs & (dev->hw_info.ram_align - 1)) != 0) {
return -EINVAL;
}
len /= dev->hw_info.ram_align;
do_div(ofs_w, dev->hw_info.ram_align);
buf_dma = pci_map_single(dev->pdev, buf, length, PCI_DMA_TODEVICE);
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,26))
ret = dma_mapping_error(buf_dma);
#else
ret = dma_mapping_error(&(dev->pdev->dev), buf_dma);
#endif
if (ret) {
hio_warn("%s: unable to map write DMA buffer\n", dev->name);
goto out_dma_mapping;
}
msg = (struct ssd_ram_op_msg *)ssd_get_dmsg(dev);
msg->fun = SSD_FUNC_RAM_WRITE;
msg->ctrl_idx = ctrl_idx;
msg->start = (uint32_t)ofs_w;
msg->length = len;
msg->buf = buf_dma;
ret = ssd_do_request(dev, WRITE, msg, NULL);
ssd_put_dmsg(msg);
pci_unmap_single(dev->pdev, buf_dma, length, PCI_DMA_TODEVICE);
out_dma_mapping:
return ret;
}
static int ssd_ram_read(struct ssd_device *dev, void *buf, size_t length, loff_t ofs, int ctrl_idx)
{
int left = length;
size_t len;
loff_t off = ofs;
int ret = 0;
if (ctrl_idx >= dev->hw_info.nr_ctrl || (uint64_t)(ofs + length) > dev->hw_info.ram_size || !length
|| (length & (dev->hw_info.ram_align - 1)) != 0 || ((uint64_t)ofs & (dev->hw_info.ram_align - 1)) != 0) {
return -EINVAL;
}
while (left > 0) {
len = dev->hw_info.ram_max_len;
if (left < (int)dev->hw_info.ram_max_len) {
len = left;
}
ret = ssd_ram_read_4k(dev, buf, len, off, ctrl_idx);
if (ret) {
break;
}
left -= len;
off += len;
buf += len;
}
return ret;
}
static int ssd_ram_write(struct ssd_device *dev, void *buf, size_t length, loff_t ofs, int ctrl_idx)
{
int left = length;
size_t len;
loff_t off = ofs;
int ret = 0;
if (ctrl_idx >= dev->hw_info.nr_ctrl || (uint64_t)(ofs + length) > dev->hw_info.ram_size || !length
|| (length & (dev->hw_info.ram_align - 1)) != 0 || ((uint64_t)ofs & (dev->hw_info.ram_align - 1)) != 0) {
return -EINVAL;
}
while (left > 0) {
len = dev->hw_info.ram_max_len;
if (left < (int)dev->hw_info.ram_max_len) {
len = left;
}
ret = ssd_ram_write_4k(dev, buf, len, off, ctrl_idx);
if (ret) {
break;
}
left -= len;
off += len;
buf += len;
}
return ret;
}
/* flash op */
static int ssd_check_flash(struct ssd_device *dev, int flash, int page, int ctrl_idx)
{
int cur_ch = flash % dev->hw_info.max_ch;
int cur_chip = flash /dev->hw_info.max_ch;
if (ctrl_idx >= dev->hw_info.nr_ctrl) {
return -EINVAL;
}
if (cur_ch >= dev->hw_info.nr_ch || cur_chip >= dev->hw_info.nr_chip) {
return -EINVAL;
}
if (page >= (int)(dev->hw_info.block_count * dev->hw_info.page_count)) {
return -EINVAL;
}
return 0;
}
static int ssd_nand_read_id(struct ssd_device *dev, void *id, int flash, int chip, int ctrl_idx)
{
struct ssd_nand_op_msg *msg;
dma_addr_t buf_dma;
int ret = 0;
if (unlikely(!id))
return -EINVAL;
buf_dma = pci_map_single(dev->pdev, id, SSD_NAND_ID_BUFF_SZ, PCI_DMA_FROMDEVICE);
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,26))
ret = dma_mapping_error(buf_dma);
#else
ret = dma_mapping_error(&(dev->pdev->dev), buf_dma);
#endif
if (ret) {
hio_warn("%s: unable to map read DMA buffer\n", dev->name);
goto out_dma_mapping;
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
flash = ((uint32_t)flash << 1) | (uint32_t)chip;
chip = 0;
}
msg = (struct ssd_nand_op_msg *)ssd_get_dmsg(dev);
msg->fun = SSD_FUNC_NAND_READ_ID;
msg->chip_no = flash;
msg->chip_ce = chip;
msg->ctrl_idx = ctrl_idx;
msg->buf = buf_dma;
ret = ssd_do_request(dev, READ, msg, NULL);
ssd_put_dmsg(msg);
pci_unmap_single(dev->pdev, buf_dma, SSD_NAND_ID_BUFF_SZ, PCI_DMA_FROMDEVICE);
out_dma_mapping:
return ret;
}
#if 0
static int ssd_nand_read(struct ssd_device *dev, void *buf,
int flash, int chip, int page, int page_count, int ctrl_idx)
{
struct ssd_nand_op_msg *msg;
dma_addr_t buf_dma;
int length;
int ret = 0;
if (!buf) {
return -EINVAL;
}
if ((page + page_count) > dev->hw_info.block_count*dev->hw_info.page_count) {
return -EINVAL;
}
ret = ssd_check_flash(dev, flash, page, ctrl_idx);
if (ret) {
return ret;
}
length = page_count * dev->hw_info.page_size;
buf_dma = pci_map_single(dev->pdev, buf, length, PCI_DMA_FROMDEVICE);
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,26))
ret = dma_mapping_error(buf_dma);
#else
ret = dma_mapping_error(&(dev->pdev->dev), buf_dma);
#endif
if (ret) {
hio_warn("%s: unable to map read DMA buffer\n", dev->name);
goto out_dma_mapping;
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
flash = (flash << 1) | chip;
chip = 0;
}
msg = (struct ssd_nand_op_msg *)ssd_get_dmsg(dev);
msg->fun = SSD_FUNC_NAND_READ;
msg->ctrl_idx = ctrl_idx;
msg->chip_no = flash;
msg->chip_ce = chip;
msg->page_no = page;
msg->page_count = page_count;
msg->buf = buf_dma;
ret = ssd_do_request(dev, READ, msg, NULL);
ssd_put_dmsg(msg);
pci_unmap_single(dev->pdev, buf_dma, length, PCI_DMA_FROMDEVICE);
out_dma_mapping:
return ret;
}
#endif
static int ssd_nand_read_w_oob(struct ssd_device *dev, void *buf,
int flash, int chip, int page, int count, int ctrl_idx)
{
struct ssd_nand_op_msg *msg;
dma_addr_t buf_dma;
int length;
int ret = 0;
if (!buf) {
return -EINVAL;
}
if ((page + count) > (int)(dev->hw_info.block_count * dev->hw_info.page_count)) {
return -EINVAL;
}
ret = ssd_check_flash(dev, flash, page, ctrl_idx);
if (ret) {
return ret;
}
length = count * (dev->hw_info.page_size + dev->hw_info.oob_size);
buf_dma = pci_map_single(dev->pdev, buf, length, PCI_DMA_FROMDEVICE);
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,26))
ret = dma_mapping_error(buf_dma);
#else
ret = dma_mapping_error(&(dev->pdev->dev), buf_dma);
#endif
if (ret) {
hio_warn("%s: unable to map read DMA buffer\n", dev->name);
goto out_dma_mapping;
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
flash = ((uint32_t)flash << 1) | (uint32_t)chip;
chip = 0;
}
msg = (struct ssd_nand_op_msg *)ssd_get_dmsg(dev);
msg->fun = SSD_FUNC_NAND_READ_WOOB;
msg->ctrl_idx = ctrl_idx;
msg->chip_no = flash;
msg->chip_ce = chip;
msg->page_no = page;
msg->page_count = count;
msg->buf = buf_dma;
ret = ssd_do_request(dev, READ, msg, NULL);
ssd_put_dmsg(msg);
pci_unmap_single(dev->pdev, buf_dma, length, PCI_DMA_FROMDEVICE);
out_dma_mapping:
return ret;
}
/* write 1 page */
static int ssd_nand_write(struct ssd_device *dev, void *buf,
int flash, int chip, int page, int count, int ctrl_idx)
{
struct ssd_nand_op_msg *msg;
dma_addr_t buf_dma;
int length;
int ret = 0;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
return -EINVAL;
}
if (!buf) {
return -EINVAL;
}
if (count != 1) {
return -EINVAL;
}
ret = ssd_check_flash(dev, flash, page, ctrl_idx);
if (ret) {
return ret;
}
length = count * (dev->hw_info.page_size + dev->hw_info.oob_size);
/* write data to ram */
/*ret = ssd_ram_write(dev, buf, length, dev->hw_info.nand_wbuff_base, ctrl_idx);
if (ret) {
return ret;
}*/
buf_dma = pci_map_single(dev->pdev, buf, length, PCI_DMA_TODEVICE);
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,26))
ret = dma_mapping_error(buf_dma);
#else
ret = dma_mapping_error(&(dev->pdev->dev), buf_dma);
#endif
if (ret) {
hio_warn("%s: unable to map write DMA buffer\n", dev->name);
goto out_dma_mapping;
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
flash = ((uint32_t)flash << 1) | (uint32_t)chip;
chip = 0;
}
msg = (struct ssd_nand_op_msg *)ssd_get_dmsg(dev);
msg->fun = SSD_FUNC_NAND_WRITE;
msg->ctrl_idx = ctrl_idx;
msg->chip_no = flash;
msg->chip_ce = chip;
msg->page_no = page;
msg->page_count = count;
msg->buf = buf_dma;
ret = ssd_do_request(dev, WRITE, msg, NULL);
ssd_put_dmsg(msg);
pci_unmap_single(dev->pdev, buf_dma, length, PCI_DMA_TODEVICE);
out_dma_mapping:
return ret;
}
static int ssd_nand_erase(struct ssd_device *dev, int flash, int chip, int page, int ctrl_idx)
{
struct ssd_nand_op_msg *msg;
int ret = 0;
ret = ssd_check_flash(dev, flash, page, ctrl_idx);
if (ret) {
return ret;
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
flash = ((uint32_t)flash << 1) | (uint32_t)chip;
chip = 0;
}
msg = (struct ssd_nand_op_msg *)ssd_get_dmsg(dev);
msg->fun = SSD_FUNC_NAND_ERASE;
msg->ctrl_idx = ctrl_idx;
msg->chip_no = flash;
msg->chip_ce = chip;
msg->page_no = page;
ret = ssd_do_request(dev, WRITE, msg, NULL);
ssd_put_dmsg(msg);
return ret;
}
static int ssd_update_bbt(struct ssd_device *dev, int flash, int ctrl_idx)
{
struct ssd_nand_op_msg *msg;
struct ssd_flush_msg *fmsg;
int ret = 0;
ret = ssd_check_flash(dev, flash, 0, ctrl_idx);
if (ret) {
return ret;
}
msg = (struct ssd_nand_op_msg *)ssd_get_dmsg(dev);
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
fmsg = (struct ssd_flush_msg *)msg;
fmsg->fun = SSD_FUNC_FLUSH;
fmsg->flag = 0x1;
fmsg->flash = flash;
fmsg->ctrl_idx = ctrl_idx;
} else {
msg->fun = SSD_FUNC_FLUSH;
msg->flag = 0x1;
msg->chip_no = flash;
msg->ctrl_idx = ctrl_idx;
}
ret = ssd_do_request(dev, WRITE, msg, NULL);
ssd_put_dmsg(msg);
return ret;
}
/* flash controller init state */
static int __ssd_check_init_state(struct ssd_device *dev)
{
uint32_t *init_state = NULL;
int reg_base, reg_sz;
int max_wait = SSD_INIT_MAX_WAIT;
int init_wait = 0;
int i, j, k;
int ch_start = 0;
/*
for (i=0; i<dev->hw_info.nr_ctrl; i++) {
ssd_reg32_write(dev->ctrlp + SSD_CTRL_TEST_REG0 + i * 8, test_data);
read_data = ssd_reg32_read(dev->ctrlp + SSD_CTRL_TEST_REG0 + i * 8);
if (read_data == ~test_data) {
//dev->hw_info.nr_ctrl++;
dev->hw_info.nr_ctrl_map |= 1<<i;
}
}
*/
/*
read_data = ssd_reg32_read(dev->ctrlp + SSD_READY_REG);
j=0;
for (i=0; i<dev->hw_info.nr_ctrl; i++) {
if (((read_data>>i) & 0x1) == 0) {
j++;
}
}
if (dev->hw_info.nr_ctrl != j) {
printk(KERN_WARNING "%s: nr_ctrl mismatch: %d %d\n", dev->name, dev->hw_info.nr_ctrl, j);
return -1;
}
*/
/*
init_state = ssd_reg_read(dev->ctrlp + SSD_FLASH_INFO_REG0);
for (j=1; j<dev->hw_info.nr_ctrl;j++) {
if (init_state != ssd_reg_read(dev->ctrlp + SSD_FLASH_INFO_REG0 + j*8)) {
printk(KERN_WARNING "SSD_FLASH_INFO_REG[%d], not match\n", j);
return -1;
}
}
*/
/* init_state = ssd_reg_read(dev->ctrlp + SSD_CHIP_INFO_REG0);
for (j=1; j<dev->hw_info.nr_ctrl; j++) {
if (init_state != ssd_reg_read(dev->ctrlp + SSD_CHIP_INFO_REG0 + j*16)) {
printk(KERN_WARNING "SSD_CHIP_INFO_REG Lo [%d], not match\n", j);
return -1;
}
}
init_state = ssd_reg_read(dev->ctrlp + SSD_CHIP_INFO_REG0 + 8);
for (j=1; j<dev->hw_info.nr_ctrl; j++) {
if (init_state != ssd_reg_read(dev->ctrlp + SSD_CHIP_INFO_REG0 + 8 + j*16)) {
printk(KERN_WARNING "SSD_CHIP_INFO_REG Hi [%d], not match\n", j);
return -1;
}
}
*/
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
max_wait = SSD_INIT_MAX_WAIT_V3_2;
}
reg_base = dev->protocol_info.init_state_reg;
reg_sz = dev->protocol_info.init_state_reg_sz;
init_state = (uint32_t *)kmalloc(reg_sz, GFP_KERNEL);
if (!init_state) {
return -ENOMEM;
}
for (i=0; i<dev->hw_info.nr_ctrl; i++) {
check_init:
for (j=0, k=0; j<reg_sz; j+=sizeof(uint32_t), k++) {
init_state[k] = ssd_reg32_read(dev->ctrlp + reg_base + j);
}
if (dev->protocol_info.ver > SSD_PROTOCOL_V3) {
/* just check the last bit, no need to check all channel */
ch_start = dev->hw_info.max_ch - 1;
} else {
ch_start = 0;
}
for (j=0; j<dev->hw_info.nr_chip; j++) {
for (k=ch_start; k<dev->hw_info.max_ch; k++) {
if (test_bit((j*dev->hw_info.max_ch + k), (void *)init_state)) {
continue;
}
init_wait++;
if (init_wait <= max_wait) {
msleep(SSD_INIT_WAIT);
goto check_init;
} else {
if (k < dev->hw_info.nr_ch) {
hio_warn("%s: controller %d chip %d ch %d init failed\n",
dev->name, i, j, k);
} else {
hio_warn("%s: controller %d chip %d init failed\n",
dev->name, i, j);
}
kfree(init_state);
return -1;
}
}
}
reg_base += reg_sz;
}
//printk(KERN_WARNING "%s: init wait %d\n", dev->name, init_wait);
kfree(init_state);
return 0;
}
static int ssd_check_init_state(struct ssd_device *dev)
{
if (mode != SSD_DRV_MODE_STANDARD) {
return 0;
}
return __ssd_check_init_state(dev);
}
static void ssd_reset_resp_ptr(struct ssd_device *dev);
/* reset flash controller etc */
static int __ssd_reset(struct ssd_device *dev, int type)
{
if (type < SSD_RST_NOINIT || type > SSD_RST_FULL) {
return -EINVAL;
}
mutex_lock(&dev->fw_mutex);
if (type == SSD_RST_NOINIT) { //no init
ssd_reg32_write(dev->ctrlp + SSD_RESET_REG, SSD_RESET_NOINIT);
} else if (type == SSD_RST_NORMAL) { //reset & init
ssd_reg32_write(dev->ctrlp + SSD_RESET_REG, SSD_RESET);
} else { // full reset
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
mutex_unlock(&dev->fw_mutex);
return -EINVAL;
}
ssd_reg32_write(dev->ctrlp + SSD_FULL_RESET_REG, SSD_RESET_FULL);
/* ?? */
ssd_reset_resp_ptr(dev);
}
#ifdef SSD_OT_PROTECT
dev->ot_delay = 0;
#endif
msleep(1000);
/* xx */
ssd_set_flush_timeout(dev, dev->wmode);
mutex_unlock(&dev->fw_mutex);
ssd_gen_swlog(dev, SSD_LOG_RESET, (uint32_t)type);
return __ssd_check_init_state(dev);
}
static int ssd_save_md(struct ssd_device *dev)
{
struct ssd_nand_op_msg *msg;
int ret = 0;
if (unlikely(mode != SSD_DRV_MODE_STANDARD))
return 0;
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
return 0;
}
if (!dev->save_md) {
return 0;
}
msg = (struct ssd_nand_op_msg *)ssd_get_dmsg(dev);
msg->fun = SSD_FUNC_FLUSH;
msg->flag = 0x2;
msg->ctrl_idx = 0;
msg->chip_no = 0;
ret = ssd_do_request(dev, WRITE, msg, NULL);
ssd_put_dmsg(msg);
return ret;
}
static int ssd_barrier_save_md(struct ssd_device *dev)
{
struct ssd_nand_op_msg *msg;
int ret = 0;
if (unlikely(mode != SSD_DRV_MODE_STANDARD))
return 0;
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
return 0;
}
if (!dev->save_md) {
return 0;
}
msg = (struct ssd_nand_op_msg *)ssd_get_dmsg(dev);
msg->fun = SSD_FUNC_FLUSH;
msg->flag = 0x2;
msg->ctrl_idx = 0;
msg->chip_no = 0;
ret = ssd_do_barrier_request(dev, WRITE, msg, NULL);
ssd_put_dmsg(msg);
return ret;
}
static int ssd_flush(struct ssd_device *dev)
{
struct ssd_nand_op_msg *msg;
struct ssd_flush_msg *fmsg;
int ret = 0;
if (unlikely(mode != SSD_DRV_MODE_STANDARD))
return 0;
msg = (struct ssd_nand_op_msg *)ssd_get_dmsg(dev);
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
fmsg = (struct ssd_flush_msg *)msg;
fmsg->fun = SSD_FUNC_FLUSH;
fmsg->flag = 0;
fmsg->ctrl_idx = 0;
fmsg->flash = 0;
} else {
msg->fun = SSD_FUNC_FLUSH;
msg->flag = 0;
msg->ctrl_idx = 0;
msg->chip_no = 0;
}
ret = ssd_do_request(dev, WRITE, msg, NULL);
ssd_put_dmsg(msg);
return ret;
}
static int ssd_barrier_flush(struct ssd_device *dev)
{
struct ssd_nand_op_msg *msg;
struct ssd_flush_msg *fmsg;
int ret = 0;
if (unlikely(mode != SSD_DRV_MODE_STANDARD))
return 0;
msg = (struct ssd_nand_op_msg *)ssd_get_dmsg(dev);
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
fmsg = (struct ssd_flush_msg *)msg;
fmsg->fun = SSD_FUNC_FLUSH;
fmsg->flag = 0;
fmsg->ctrl_idx = 0;
fmsg->flash = 0;
} else {
msg->fun = SSD_FUNC_FLUSH;
msg->flag = 0;
msg->ctrl_idx = 0;
msg->chip_no = 0;
}
ret = ssd_do_barrier_request(dev, WRITE, msg, NULL);
ssd_put_dmsg(msg);
return ret;
}
#define SSD_WMODE_BUFFER_TIMEOUT 0x00c82710
#define SSD_WMODE_BUFFER_EX_TIMEOUT 0x000500c8
#define SSD_WMODE_FUA_TIMEOUT 0x000503E8
static void ssd_set_flush_timeout(struct ssd_device *dev, int m)
{
uint32_t to;
uint32_t val = 0;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_1_1) {
return;
}
switch(m) {
case SSD_WMODE_BUFFER:
to = SSD_WMODE_BUFFER_TIMEOUT;
break;
case SSD_WMODE_BUFFER_EX:
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2_1) {
to = SSD_WMODE_BUFFER_EX_TIMEOUT;
} else {
to = SSD_WMODE_BUFFER_TIMEOUT;
}
break;
case SSD_WMODE_FUA:
to = SSD_WMODE_FUA_TIMEOUT;
break;
default:
return;
}
val = (((uint32_t)((uint32_t)m & 0x3) << 28) | to);
ssd_reg32_write(dev->ctrlp + SSD_FLUSH_TIMEOUT_REG, val);
}
static int ssd_do_switch_wmode(struct ssd_device *dev, int m)
{
int ret = 0;
ret = ssd_barrier_start(dev);
if (ret) {
goto out;
}
ret = ssd_barrier_flush(dev);
if (ret) {
goto out_barrier_end;
}
/* set contoller flush timeout */
ssd_set_flush_timeout(dev, m);
dev->wmode = m;
mb();
out_barrier_end:
ssd_barrier_end(dev);
out:
return ret;
}
static int ssd_switch_wmode(struct ssd_device *dev, int m)
{
int default_wmode;
int next_wmode;
int ret = 0;
if (!test_bit(SSD_ONLINE, &dev->state)) {
return -ENODEV;
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
default_wmode = SSD_WMODE_BUFFER;
} else {
default_wmode = SSD_WMODE_BUFFER_EX;
}
if (SSD_WMODE_AUTO == m) {
/* battery fault ? */
if (test_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon)) {
next_wmode = SSD_WMODE_FUA;
} else {
next_wmode = default_wmode;
}
} else if (SSD_WMODE_DEFAULT == m) {
next_wmode = default_wmode;
} else {
next_wmode = m;
}
if (next_wmode != dev->wmode) {
hio_warn("%s: switch write mode (%d -> %d)\n", dev->name, dev->wmode, next_wmode);
ret = ssd_do_switch_wmode(dev, next_wmode);
if (ret) {
hio_err("%s: can not switch write mode (%d -> %d)\n", dev->name, dev->wmode, next_wmode);
}
}
return ret;
}
static int ssd_init_wmode(struct ssd_device *dev)
{
int default_wmode;
int ret = 0;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
default_wmode = SSD_WMODE_BUFFER;
} else {
default_wmode = SSD_WMODE_BUFFER_EX;
}
/* dummy mode */
if (SSD_WMODE_AUTO == dev->user_wmode) {
/* battery fault ? */
if (test_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon)) {
dev->wmode = SSD_WMODE_FUA;
} else {
dev->wmode = default_wmode;
}
} else if (SSD_WMODE_DEFAULT == dev->user_wmode) {
dev->wmode = default_wmode;
} else {
dev->wmode = dev->user_wmode;
}
ssd_set_flush_timeout(dev, dev->wmode);
return ret;
}
static int __ssd_set_wmode(struct ssd_device *dev, int m)
{
int ret = 0;
/* not support old fw*/
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_1_1) {
ret = -EOPNOTSUPP;
goto out;
}
if (m < SSD_WMODE_BUFFER || m > SSD_WMODE_DEFAULT) {
ret = -EINVAL;
goto out;
}
ssd_gen_swlog(dev, SSD_LOG_SET_WMODE, m);
dev->user_wmode = m;
ret = ssd_switch_wmode(dev, dev->user_wmode);
if (ret) {
goto out;
}
out:
return ret;
}
int ssd_set_wmode(struct block_device *bdev, int m)
{
struct ssd_device *dev;
if (!bdev || !(bdev->bd_disk)) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
return __ssd_set_wmode(dev, m);
}
static int ssd_do_reset(struct ssd_device *dev)
{
int ret = 0;
if (test_and_set_bit(SSD_RESETING, &dev->state)) {
return 0;
}
ssd_stop_workq(dev);
ret = ssd_barrier_start(dev);
if (ret) {
goto out;
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
/* old reset */
ret = __ssd_reset(dev, SSD_RST_NORMAL);
} else {
/* full reset */
//ret = __ssd_reset(dev, SSD_RST_FULL);
ret = __ssd_reset(dev, SSD_RST_NORMAL);
}
if (ret) {
goto out_barrier_end;
}
out_barrier_end:
ssd_barrier_end(dev);
out:
ssd_start_workq(dev);
test_and_clear_bit(SSD_RESETING, &dev->state);
return ret;
}
static int ssd_full_reset(struct ssd_device *dev)
{
int ret = 0;
if (test_and_set_bit(SSD_RESETING, &dev->state)) {
return 0;
}
ssd_stop_workq(dev);
ret = ssd_barrier_start(dev);
if (ret) {
goto out;
}
ret = ssd_barrier_flush(dev);
if (ret) {
goto out_barrier_end;
}
ret = ssd_barrier_save_md(dev);
if (ret) {
goto out_barrier_end;
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
/* old reset */
ret = __ssd_reset(dev, SSD_RST_NORMAL);
} else {
/* full reset */
//ret = __ssd_reset(dev, SSD_RST_FULL);
ret = __ssd_reset(dev, SSD_RST_NORMAL);
}
if (ret) {
goto out_barrier_end;
}
out_barrier_end:
ssd_barrier_end(dev);
out:
ssd_start_workq(dev);
test_and_clear_bit(SSD_RESETING, &dev->state);
return ret;
}
int ssd_reset(struct block_device *bdev)
{
struct ssd_device *dev;
if (!bdev || !(bdev->bd_disk)) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
return ssd_full_reset(dev);
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
static int ssd_issue_flush_fn(struct request_queue *q, struct gendisk *disk,
sector_t *error_sector)
{
struct ssd_device *dev = q->queuedata;
return ssd_flush(dev);
}
#endif
void ssd_submit_pbio(struct request_queue *q, struct bio *bio)
{
struct ssd_device *dev = q->queuedata;
#ifdef SSD_QUEUE_PBIO
int ret = -EBUSY;
#endif
if (!test_bit(SSD_ONLINE, &dev->state)) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -ENODEV);
#else
bio_endio(bio, bio->bi_size, -ENODEV);
#endif
goto out;
}
#ifdef SSD_DEBUG_ERR
if (atomic_read(&dev->tocnt)) {
hio_warn("%s: IO rejected because of IO timeout!\n", dev->name);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -EIO);
#else
bio_endio(bio, bio->bi_size, -EIO);
#endif
goto out;
}
#endif
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32))
if (unlikely(bio_barrier(bio))) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -EOPNOTSUPP);
#else
bio_endio(bio, bio->bi_size, -EOPNOTSUPP);
#endif
goto out;
}
#elif (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36))
if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -EOPNOTSUPP);
#else
bio_endio(bio, bio->bi_size, -EOPNOTSUPP);
#endif
goto out;
}
#elif (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37))
if (unlikely(bio->bi_rw & REQ_HARDBARRIER)) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -EOPNOTSUPP);
#else
bio_endio(bio, bio->bi_size, -EOPNOTSUPP);
#endif
goto out;
}
#else
//xx
if (unlikely(bio->bi_rw & REQ_FUA)) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -EOPNOTSUPP);
#else
bio_endio(bio, bio->bi_size, -EOPNOTSUPP);
#endif
goto out;
}
#endif
if (unlikely(dev->readonly && bio_data_dir(bio) == WRITE)) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -EROFS);
#else
bio_endio(bio, bio->bi_size, -EROFS);
#endif
goto out;
}
#ifdef SSD_QUEUE_PBIO
if (0 == atomic_read(&dev->in_sendq)) {
ret = __ssd_submit_pbio(dev, bio, 0);
}
if (ret) {
(void)test_and_set_bit(BIO_SSD_PBIO, &bio->bi_flags);
ssd_queue_bio(dev, bio);
}
#else
__ssd_submit_pbio(dev, bio, 1);
#endif
out:
return;
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0))
static int ssd_make_request(struct request_queue *q, struct bio *bio)
#else
static void ssd_make_request(struct request_queue *q, struct bio *bio)
#endif
{
struct ssd_device *dev = q->queuedata;
int ret = -EBUSY;
if (!test_bit(SSD_ONLINE, &dev->state)) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -ENODEV);
#else
bio_endio(bio, bio->bi_size, -ENODEV);
#endif
goto out;
}
#ifdef SSD_DEBUG_ERR
if (atomic_read(&dev->tocnt)) {
hio_warn("%s: IO rejected because of IO timeout!\n", dev->name);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -EIO);
#else
bio_endio(bio, bio->bi_size, -EIO);
#endif
goto out;
}
#endif
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32))
if (unlikely(bio_barrier(bio))) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -EOPNOTSUPP);
#else
bio_endio(bio, bio->bi_size, -EOPNOTSUPP);
#endif
goto out;
}
#elif (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36))
if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER))) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -EOPNOTSUPP);
#else
bio_endio(bio, bio->bi_size, -EOPNOTSUPP);
#endif
goto out;
}
#elif (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37))
if (unlikely(bio->bi_rw & REQ_HARDBARRIER)) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -EOPNOTSUPP);
#else
bio_endio(bio, bio->bi_size, -EOPNOTSUPP);
#endif
goto out;
}
#else
//xx
if (unlikely(bio->bi_rw & REQ_FUA)) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
bio_endio(bio, -EOPNOTSUPP);
#else
bio_endio(bio, bio->bi_size, -EOPNOTSUPP);
#endif
goto out;
}
/* writeback_cache_control.txt: REQ_FLUSH requests without data can be completed successfully without doing any work */
if (unlikely((bio->bi_rw & REQ_FLUSH) && !bio_sectors(bio))) {
bio_endio(bio, 0);
goto out;
}
#endif
if (0 == atomic_read(&dev->in_sendq)) {
ret = ssd_submit_bio(dev, bio, 0);
}
if (ret) {
ssd_queue_bio(dev, bio);
}
out:
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0))
return 0;
#else
return;
#endif
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16))
static int ssd_block_getgeo(struct block_device *bdev, struct hd_geometry *geo)
{
struct ssd_device *dev;
if (!bdev) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
if (!dev) {
return -EINVAL;
}
geo->heads = 4;
geo->sectors = 16;
geo->cylinders = (dev->hw_info.size & ~0x3f) >> 6;
return 0;
}
#endif
static void ssd_cleanup_blkdev(struct ssd_device *dev);
static int ssd_init_blkdev(struct ssd_device *dev);
static int ssd_ioctl_common(struct ssd_device *dev, unsigned int cmd, unsigned long arg)
{
void __user *argp = (void __user *)arg;
void __user *buf = NULL;
void *kbuf = NULL;
int ret = 0;
switch (cmd) {
case SSD_CMD_GET_PROTOCOL_INFO:
if (copy_to_user(argp, &dev->protocol_info, sizeof(struct ssd_protocol_info))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
case SSD_CMD_GET_HW_INFO:
if (copy_to_user(argp, &dev->hw_info, sizeof(struct ssd_hw_info))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
case SSD_CMD_GET_ROM_INFO:
if (copy_to_user(argp, &dev->rom_info, sizeof(struct ssd_rom_info))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
case SSD_CMD_GET_SMART: {
struct ssd_smart smart;
int i;
memcpy(&smart, &dev->smart, sizeof(struct ssd_smart));
mutex_lock(&dev->gd_mutex);
ssd_update_smart(dev, &smart);
mutex_unlock(&dev->gd_mutex);
/* combine the volatile log info */
if (dev->log_info.nr_log) {
for (i=0; i<SSD_LOG_NR_LEVEL; i++) {
smart.log_info.stat[i] += dev->log_info.stat[i];
}
}
if (copy_to_user(argp, &smart, sizeof(struct ssd_smart))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_IDX:
if (copy_to_user(argp, &dev->idx, sizeof(int))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
case SSD_CMD_GET_AMOUNT: {
int nr_ssd = atomic_read(&ssd_nr);
if (copy_to_user(argp, &nr_ssd, sizeof(int))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_TO_INFO: {
int tocnt = atomic_read(&dev->tocnt);
if (copy_to_user(argp, &tocnt, sizeof(int))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_DRV_VER: {
char ver[] = DRIVER_VERSION;
int len = sizeof(ver);
if (len > (DRIVER_VERSION_LEN - 1)) {
len = (DRIVER_VERSION_LEN - 1);
}
if (copy_to_user(argp, ver, len)) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_BBACC_INFO: {
struct ssd_acc_info acc;
mutex_lock(&dev->fw_mutex);
ret = ssd_bb_acc(dev, &acc);
mutex_unlock(&dev->fw_mutex);
if (ret) {
break;
}
if (copy_to_user(argp, &acc, sizeof(struct ssd_acc_info))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_ECACC_INFO: {
struct ssd_acc_info acc;
mutex_lock(&dev->fw_mutex);
ret = ssd_ec_acc(dev, &acc);
mutex_unlock(&dev->fw_mutex);
if (ret) {
break;
}
if (copy_to_user(argp, &acc, sizeof(struct ssd_acc_info))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_HW_INFO_EXT:
if (copy_to_user(argp, &dev->hw_info_ext, sizeof(struct ssd_hw_info_extend))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
case SSD_CMD_REG_READ: {
struct ssd_reg_op_info reg_info;
if (copy_from_user(&reg_info, argp, sizeof(struct ssd_reg_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
if (reg_info.offset > dev->mmio_len-sizeof(uint32_t)) {
ret = -EINVAL;
break;
}
reg_info.value = ssd_reg32_read(dev->ctrlp + reg_info.offset);
if (copy_to_user(argp, &reg_info, sizeof(struct ssd_reg_op_info))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_REG_WRITE: {
struct ssd_reg_op_info reg_info;
if (copy_from_user(&reg_info, argp, sizeof(struct ssd_reg_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
if (reg_info.offset > dev->mmio_len-sizeof(uint32_t)) {
ret = -EINVAL;
break;
}
ssd_reg32_write(dev->ctrlp + reg_info.offset, reg_info.value);
break;
}
case SSD_CMD_SPI_READ: {
struct ssd_spi_op_info spi_info;
uint32_t off, size;
if (copy_from_user(&spi_info, argp, sizeof(struct ssd_spi_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
off = spi_info.off;
size = spi_info.len;
buf = spi_info.buf;
if (size > dev->rom_info.size || 0 == size || (off + size) > dev->rom_info.size) {
ret = -EINVAL;
break;
}
kbuf = kmalloc(size, GFP_KERNEL);
if (!kbuf) {
ret = -ENOMEM;
break;
}
ret = ssd_spi_page_read(dev, kbuf, off, size);
if (ret) {
kfree(kbuf);
break;
}
if (copy_to_user(buf, kbuf, size)) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
kfree(kbuf);
ret = -EFAULT;
break;
}
kfree(kbuf);
break;
}
case SSD_CMD_SPI_WRITE: {
struct ssd_spi_op_info spi_info;
uint32_t off, size;
if (copy_from_user(&spi_info, argp, sizeof(struct ssd_spi_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
off = spi_info.off;
size = spi_info.len;
buf = spi_info.buf;
if (size > dev->rom_info.size || 0 == size || (off + size) > dev->rom_info.size) {
ret = -EINVAL;
break;
}
kbuf = kmalloc(size, GFP_KERNEL);
if (!kbuf) {
ret = -ENOMEM;
break;
}
if (copy_from_user(kbuf, buf, size)) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
kfree(kbuf);
ret = -EFAULT;
break;
}
ret = ssd_spi_page_write(dev, kbuf, off, size);
if (ret) {
kfree(kbuf);
break;
}
kfree(kbuf);
break;
}
case SSD_CMD_SPI_ERASE: {
struct ssd_spi_op_info spi_info;
uint32_t off;
if (copy_from_user(&spi_info, argp, sizeof(struct ssd_spi_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
off = spi_info.off;
if ((off + dev->rom_info.block_size) > dev->rom_info.size) {
ret = -EINVAL;
break;
}
ret = ssd_spi_block_erase(dev, off);
if (ret) {
break;
}
break;
}
case SSD_CMD_I2C_READ: {
struct ssd_i2c_op_info i2c_info;
uint8_t saddr;
uint8_t rsize;
if (copy_from_user(&i2c_info, argp, sizeof(struct ssd_i2c_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
saddr = i2c_info.saddr;
rsize = i2c_info.rsize;
buf = i2c_info.rbuf;
if (rsize <= 0 || rsize > SSD_I2C_MAX_DATA) {
ret = -EINVAL;
break;
}
kbuf = kmalloc(rsize, GFP_KERNEL);
if (!kbuf) {
ret = -ENOMEM;
break;
}
ret = ssd_i2c_read(dev, saddr, rsize, kbuf);
if (ret) {
kfree(kbuf);
break;
}
if (copy_to_user(buf, kbuf, rsize)) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
kfree(kbuf);
ret = -EFAULT;
break;
}
kfree(kbuf);
break;
}
case SSD_CMD_I2C_WRITE: {
struct ssd_i2c_op_info i2c_info;
uint8_t saddr;
uint8_t wsize;
if (copy_from_user(&i2c_info, argp, sizeof(struct ssd_i2c_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
saddr = i2c_info.saddr;
wsize = i2c_info.wsize;
buf = i2c_info.wbuf;
if (wsize <= 0 || wsize > SSD_I2C_MAX_DATA) {
ret = -EINVAL;
break;
}
kbuf = kmalloc(wsize, GFP_KERNEL);
if (!kbuf) {
ret = -ENOMEM;
break;
}
if (copy_from_user(kbuf, buf, wsize)) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
kfree(kbuf);
ret = -EFAULT;
break;
}
ret = ssd_i2c_write(dev, saddr, wsize, kbuf);
if (ret) {
kfree(kbuf);
break;
}
kfree(kbuf);
break;
}
case SSD_CMD_I2C_WRITE_READ: {
struct ssd_i2c_op_info i2c_info;
uint8_t saddr;
uint8_t wsize;
uint8_t rsize;
uint8_t size;
if (copy_from_user(&i2c_info, argp, sizeof(struct ssd_i2c_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
saddr = i2c_info.saddr;
wsize = i2c_info.wsize;
rsize = i2c_info.rsize;
buf = i2c_info.wbuf;
if (wsize <= 0 || wsize > SSD_I2C_MAX_DATA) {
ret = -EINVAL;
break;
}
if (rsize <= 0 || rsize > SSD_I2C_MAX_DATA) {
ret = -EINVAL;
break;
}
size = wsize + rsize;
kbuf = kmalloc(size, GFP_KERNEL);
if (!kbuf) {
ret = -ENOMEM;
break;
}
if (copy_from_user((kbuf + rsize), buf, wsize)) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
kfree(kbuf);
ret = -EFAULT;
break;
}
buf = i2c_info.rbuf;
ret = ssd_i2c_write_read(dev, saddr, wsize, (kbuf + rsize), rsize, kbuf);
if (ret) {
kfree(kbuf);
break;
}
if (copy_to_user(buf, kbuf, rsize)) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
kfree(kbuf);
ret = -EFAULT;
break;
}
kfree(kbuf);
break;
}
case SSD_CMD_SMBUS_SEND_BYTE: {
struct ssd_smbus_op_info smbus_info;
uint8_t smb_data[SSD_SMBUS_BLOCK_MAX];
uint8_t saddr;
uint8_t size;
if (copy_from_user(&smbus_info, argp, sizeof(struct ssd_smbus_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
saddr = smbus_info.saddr;
buf = smbus_info.buf;
size = 1;
if (copy_from_user(smb_data, buf, size)) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
ret = ssd_smbus_send_byte(dev, saddr, smb_data);
if (ret) {
break;
}
break;
}
case SSD_CMD_SMBUS_RECEIVE_BYTE: {
struct ssd_smbus_op_info smbus_info;
uint8_t smb_data[SSD_SMBUS_BLOCK_MAX];
uint8_t saddr;
uint8_t size;
if (copy_from_user(&smbus_info, argp, sizeof(struct ssd_smbus_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
saddr = smbus_info.saddr;
buf = smbus_info.buf;
size = 1;
ret = ssd_smbus_receive_byte(dev, saddr, smb_data);
if (ret) {
break;
}
if (copy_to_user(buf, smb_data, size)) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_SMBUS_WRITE_BYTE: {
struct ssd_smbus_op_info smbus_info;
uint8_t smb_data[SSD_SMBUS_BLOCK_MAX];
uint8_t saddr;
uint8_t command;
uint8_t size;
if (copy_from_user(&smbus_info, argp, sizeof(struct ssd_smbus_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
saddr = smbus_info.saddr;
command = smbus_info.cmd;
buf = smbus_info.buf;
size = 1;
if (copy_from_user(smb_data, buf, size)) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
ret = ssd_smbus_write_byte(dev, saddr, command, smb_data);
if (ret) {
break;
}
break;
}
case SSD_CMD_SMBUS_READ_BYTE: {
struct ssd_smbus_op_info smbus_info;
uint8_t smb_data[SSD_SMBUS_BLOCK_MAX];
uint8_t saddr;
uint8_t command;
uint8_t size;
if (copy_from_user(&smbus_info, argp, sizeof(struct ssd_smbus_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
saddr = smbus_info.saddr;
command = smbus_info.cmd;
buf = smbus_info.buf;
size = 1;
ret = ssd_smbus_read_byte(dev, saddr, command, smb_data);
if (ret) {
break;
}
if (copy_to_user(buf, smb_data, size)) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_SMBUS_WRITE_WORD: {
struct ssd_smbus_op_info smbus_info;
uint8_t smb_data[SSD_SMBUS_BLOCK_MAX];
uint8_t saddr;
uint8_t command;
uint8_t size;
if (copy_from_user(&smbus_info, argp, sizeof(struct ssd_smbus_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
saddr = smbus_info.saddr;
command = smbus_info.cmd;
buf = smbus_info.buf;
size = 2;
if (copy_from_user(smb_data, buf, size)) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
ret = ssd_smbus_write_word(dev, saddr, command, smb_data);
if (ret) {
break;
}
break;
}
case SSD_CMD_SMBUS_READ_WORD: {
struct ssd_smbus_op_info smbus_info;
uint8_t smb_data[SSD_SMBUS_BLOCK_MAX];
uint8_t saddr;
uint8_t command;
uint8_t size;
if (copy_from_user(&smbus_info, argp, sizeof(struct ssd_smbus_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
saddr = smbus_info.saddr;
command = smbus_info.cmd;
buf = smbus_info.buf;
size = 2;
ret = ssd_smbus_read_word(dev, saddr, command, smb_data);
if (ret) {
break;
}
if (copy_to_user(buf, smb_data, size)) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_SMBUS_WRITE_BLOCK: {
struct ssd_smbus_op_info smbus_info;
uint8_t smb_data[SSD_SMBUS_BLOCK_MAX];
uint8_t saddr;
uint8_t command;
uint8_t size;
if (copy_from_user(&smbus_info, argp, sizeof(struct ssd_smbus_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
saddr = smbus_info.saddr;
command = smbus_info.cmd;
buf = smbus_info.buf;
size = smbus_info.size;
if (size > SSD_SMBUS_BLOCK_MAX) {
ret = -EINVAL;
break;
}
if (copy_from_user(smb_data, buf, size)) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
ret = ssd_smbus_write_block(dev, saddr, command, size, smb_data);
if (ret) {
break;
}
break;
}
case SSD_CMD_SMBUS_READ_BLOCK: {
struct ssd_smbus_op_info smbus_info;
uint8_t smb_data[SSD_SMBUS_BLOCK_MAX];
uint8_t saddr;
uint8_t command;
uint8_t size;
if (copy_from_user(&smbus_info, argp, sizeof(struct ssd_smbus_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
saddr = smbus_info.saddr;
command = smbus_info.cmd;
buf = smbus_info.buf;
size = smbus_info.size;
if (size > SSD_SMBUS_BLOCK_MAX) {
ret = -EINVAL;
break;
}
ret = ssd_smbus_read_block(dev, saddr, command, size, smb_data);
if (ret) {
break;
}
if (copy_to_user(buf, smb_data, size)) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_BM_GET_VER: {
uint16_t ver;
ret = ssd_bm_get_version(dev, &ver);
if (ret) {
break;
}
if (copy_to_user(argp, &ver, sizeof(uint16_t))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_BM_GET_NR_CAP: {
int nr_cap;
ret = ssd_bm_nr_cap(dev, &nr_cap);
if (ret) {
break;
}
if (copy_to_user(argp, &nr_cap, sizeof(int))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_BM_CAP_LEARNING: {
ret = ssd_bm_enter_cap_learning(dev);
if (ret) {
break;
}
break;
}
case SSD_CMD_CAP_LEARN: {
uint32_t cap = 0;
ret = ssd_cap_learn(dev, &cap);
if (ret) {
break;
}
if (copy_to_user(argp, &cap, sizeof(uint32_t))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_CAP_STATUS: {
int cap_status = 0;
if (test_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon)) {
cap_status = 1;
}
if (copy_to_user(argp, &cap_status, sizeof(int))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_RAM_READ: {
struct ssd_ram_op_info ram_info;
uint64_t ofs;
uint32_t length;
size_t rlen, len = dev->hw_info.ram_max_len;
int ctrl_idx;
if (copy_from_user(&ram_info, argp, sizeof(struct ssd_ram_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
ofs = ram_info.start;
length = ram_info.length;
buf = ram_info.buf;
ctrl_idx = ram_info.ctrl_idx;
if (ofs >= dev->hw_info.ram_size || length > dev->hw_info.ram_size || 0 == length || (ofs + length) > dev->hw_info.ram_size) {
ret = -EINVAL;
break;
}
kbuf = kmalloc(len, GFP_KERNEL);
if (!kbuf) {
ret = -ENOMEM;
break;
}
for (rlen=0; rlen<length; rlen+=len, buf+=len, ofs+=len) {
if ((length - rlen) < len) {
len = length - rlen;
}
ret = ssd_ram_read(dev, kbuf, len, ofs, ctrl_idx);
if (ret) {
break;
}
if (copy_to_user(buf, kbuf, len)) {
ret = -EFAULT;
break;
}
}
kfree(kbuf);
break;
}
case SSD_CMD_RAM_WRITE: {
struct ssd_ram_op_info ram_info;
uint64_t ofs;
uint32_t length;
size_t wlen, len = dev->hw_info.ram_max_len;
int ctrl_idx;
if (copy_from_user(&ram_info, argp, sizeof(struct ssd_ram_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
ofs = ram_info.start;
length = ram_info.length;
buf = ram_info.buf;
ctrl_idx = ram_info.ctrl_idx;
if (ofs >= dev->hw_info.ram_size || length > dev->hw_info.ram_size || 0 == length || (ofs + length) > dev->hw_info.ram_size) {
ret = -EINVAL;
break;
}
kbuf = kmalloc(len, GFP_KERNEL);
if (!kbuf) {
ret = -ENOMEM;
break;
}
for (wlen=0; wlen<length; wlen+=len, buf+=len, ofs+=len) {
if ((length - wlen) < len) {
len = length - wlen;
}
if (copy_from_user(kbuf, buf, len)) {
ret = -EFAULT;
break;
}
ret = ssd_ram_write(dev, kbuf, len, ofs, ctrl_idx);
if (ret) {
break;
}
}
kfree(kbuf);
break;
}
case SSD_CMD_NAND_READ_ID: {
struct ssd_flash_op_info flash_info;
int chip_no, chip_ce, length, ctrl_idx;
if (copy_from_user(&flash_info, argp, sizeof(struct ssd_flash_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
chip_no = flash_info.flash;
chip_ce = flash_info.chip;
ctrl_idx = flash_info.ctrl_idx;
buf = flash_info.buf;
length = dev->hw_info.id_size;
//kbuf = kmalloc(length, GFP_KERNEL);
kbuf = kmalloc(SSD_NAND_ID_BUFF_SZ, GFP_KERNEL); //xx
if (!kbuf) {
ret = -ENOMEM;
break;
}
memset(kbuf, 0, length);
ret = ssd_nand_read_id(dev, kbuf, chip_no, chip_ce, ctrl_idx);
if (ret) {
kfree(kbuf);
break;
}
if (copy_to_user(buf, kbuf, length)) {
kfree(kbuf);
ret = -EFAULT;
break;
}
kfree(kbuf);
break;
}
case SSD_CMD_NAND_READ: { //with oob
struct ssd_flash_op_info flash_info;
uint32_t length;
int flash, chip, page, ctrl_idx;
int err = 0;
if (copy_from_user(&flash_info, argp, sizeof(struct ssd_flash_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
flash = flash_info.flash;
chip = flash_info.chip;
page = flash_info.page;
buf = flash_info.buf;
ctrl_idx = flash_info.ctrl_idx;
length = dev->hw_info.page_size + dev->hw_info.oob_size;
kbuf = kmalloc(length, GFP_KERNEL);
if (!kbuf) {
ret = -ENOMEM;
break;
}
err = ret = ssd_nand_read_w_oob(dev, kbuf, flash, chip, page, 1, ctrl_idx);
if (ret && (-EIO != ret)) {
kfree(kbuf);
break;
}
if (copy_to_user(buf, kbuf, length)) {
kfree(kbuf);
ret = -EFAULT;
break;
}
ret = err;
kfree(kbuf);
break;
}
case SSD_CMD_NAND_WRITE: {
struct ssd_flash_op_info flash_info;
int flash, chip, page, ctrl_idx;
uint32_t length;
if (copy_from_user(&flash_info, argp, sizeof(struct ssd_flash_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
flash = flash_info.flash;
chip = flash_info.chip;
page = flash_info.page;
buf = flash_info.buf;
ctrl_idx = flash_info.ctrl_idx;
length = dev->hw_info.page_size + dev->hw_info.oob_size;
kbuf = kmalloc(length, GFP_KERNEL);
if (!kbuf) {
ret = -ENOMEM;
break;
}
if (copy_from_user(kbuf, buf, length)) {
kfree(kbuf);
ret = -EFAULT;
break;
}
ret = ssd_nand_write(dev, kbuf, flash, chip, page, 1, ctrl_idx);
if (ret) {
kfree(kbuf);
break;
}
kfree(kbuf);
break;
}
case SSD_CMD_NAND_ERASE: {
struct ssd_flash_op_info flash_info;
int flash, chip, page, ctrl_idx;
if (copy_from_user(&flash_info, argp, sizeof(struct ssd_flash_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
flash = flash_info.flash;
chip = flash_info.chip;
page = flash_info.page;
ctrl_idx = flash_info.ctrl_idx;
if ((page % dev->hw_info.page_count) != 0) {
ret = -EINVAL;
break;
}
//hio_warn("erase fs = %llx\n", ofs);
ret = ssd_nand_erase(dev, flash, chip, page, ctrl_idx);
if (ret) {
break;
}
break;
}
case SSD_CMD_NAND_READ_EXT: { //ingore EIO
struct ssd_flash_op_info flash_info;
uint32_t length;
int flash, chip, page, ctrl_idx;
if (copy_from_user(&flash_info, argp, sizeof(struct ssd_flash_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
flash = flash_info.flash;
chip = flash_info.chip;
page = flash_info.page;
buf = flash_info.buf;
ctrl_idx = flash_info.ctrl_idx;
length = dev->hw_info.page_size + dev->hw_info.oob_size;
kbuf = kmalloc(length, GFP_KERNEL);
if (!kbuf) {
ret = -ENOMEM;
break;
}
ret = ssd_nand_read_w_oob(dev, kbuf, flash, chip, page, 1, ctrl_idx);
if (-EIO == ret) { //ingore EIO
ret = 0;
}
if (ret) {
kfree(kbuf);
break;
}
if (copy_to_user(buf, kbuf, length)) {
kfree(kbuf);
ret = -EFAULT;
break;
}
kfree(kbuf);
break;
}
case SSD_CMD_UPDATE_BBT: {
struct ssd_flash_op_info flash_info;
int ctrl_idx, flash;
if (copy_from_user(&flash_info, argp, sizeof(struct ssd_flash_op_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
ctrl_idx = flash_info.ctrl_idx;
flash = flash_info.flash;
ret = ssd_update_bbt(dev, flash, ctrl_idx);
if (ret) {
break;
}
break;
}
case SSD_CMD_CLEAR_ALARM:
ssd_clear_alarm(dev);
break;
case SSD_CMD_SET_ALARM:
ssd_set_alarm(dev);
break;
case SSD_CMD_RESET:
ret = ssd_do_reset(dev);
break;
case SSD_CMD_RELOAD_FW:
dev->reload_fw = 1;
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
ssd_reg32_write(dev->ctrlp + SSD_RELOAD_FW_REG, SSD_RELOAD_FLAG);
} else if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_1_1) {
ssd_reg32_write(dev->ctrlp + SSD_RELOAD_FW_REG, SSD_RELOAD_FW);
}
break;
case SSD_CMD_UNLOAD_DEV: {
if (atomic_read(&dev->refcnt)) {
ret = -EBUSY;
break;
}
/* save smart */
ssd_save_smart(dev);
ret = ssd_flush(dev);
if (ret) {
break;
}
/* cleanup the block device */
if (test_and_clear_bit(SSD_INIT_BD, &dev->state)) {
mutex_lock(&dev->gd_mutex);
ssd_cleanup_blkdev(dev);
mutex_unlock(&dev->gd_mutex);
}
break;
}
case SSD_CMD_LOAD_DEV: {
if (test_bit(SSD_INIT_BD, &dev->state)) {
ret = -EINVAL;
break;
}
ret = ssd_init_smart(dev);
if (ret) {
hio_warn("%s: init info: failed\n", dev->name);
break;
}
ret = ssd_init_blkdev(dev);
if (ret) {
hio_warn("%s: register block device: failed\n", dev->name);
break;
}
(void)test_and_set_bit(SSD_INIT_BD, &dev->state);
break;
}
case SSD_CMD_UPDATE_VP: {
uint32_t val;
uint32_t new_vp, new_vp1 = 0;
if (test_bit(SSD_INIT_BD, &dev->state)) {
ret = -EINVAL;
break;
}
if (copy_from_user(&new_vp, argp, sizeof(uint32_t))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
if (new_vp > dev->hw_info.max_valid_pages || new_vp <= 0) {
ret = -EINVAL;
break;
}
while (new_vp <= dev->hw_info.max_valid_pages) {
ssd_reg32_write(dev->ctrlp + SSD_VALID_PAGES_REG, new_vp);
msleep(10);
val = ssd_reg32_read(dev->ctrlp + SSD_VALID_PAGES_REG);
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
new_vp1 = val & 0x3FF;
} else {
new_vp1 = val & 0x7FFF;
}
if (new_vp1 == new_vp) {
break;
}
new_vp++;
/*if (new_vp == dev->hw_info.valid_pages) {
new_vp++;
}*/
}
if (new_vp1 != new_vp || new_vp > dev->hw_info.max_valid_pages) {
/* restore */
ssd_reg32_write(dev->ctrlp + SSD_VALID_PAGES_REG, dev->hw_info.valid_pages);
ret = -EINVAL;
break;
}
if (copy_to_user(argp, &new_vp, sizeof(uint32_t))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ssd_reg32_write(dev->ctrlp + SSD_VALID_PAGES_REG, dev->hw_info.valid_pages);
ret = -EFAULT;
break;
}
/* new */
dev->hw_info.valid_pages = new_vp;
dev->hw_info.size = (uint64_t)dev->hw_info.valid_pages * dev->hw_info.page_size;
dev->hw_info.size *= (dev->hw_info.block_count - dev->hw_info.reserved_blks);
dev->hw_info.size *= ((uint64_t)dev->hw_info.nr_data_ch * (uint64_t)dev->hw_info.nr_chip * (uint64_t)dev->hw_info.nr_ctrl);
break;
}
case SSD_CMD_FULL_RESET: {
ret = ssd_full_reset(dev);
break;
}
case SSD_CMD_GET_NR_LOG: {
if (copy_to_user(argp, &dev->internal_log.nr_log, sizeof(dev->internal_log.nr_log))) {
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_LOG: {
uint32_t length = dev->rom_info.log_sz;
buf = argp;
if (copy_to_user(buf, dev->internal_log.log, length)) {
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_LOG_LEVEL: {
int level = 0;
if (copy_from_user(&level, argp, sizeof(int))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
if (level >= SSD_LOG_NR_LEVEL || level < SSD_LOG_LEVEL_INFO) {
level = SSD_LOG_LEVEL_ERR;
}
//just for showing log, no need to protect
log_level = level;
break;
}
case SSD_CMD_OT_PROTECT: {
int protect = 0;
if (copy_from_user(&protect, argp, sizeof(int))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
ssd_set_ot_protect(dev, !!protect);
break;
}
case SSD_CMD_GET_OT_STATUS: {
int status = ssd_get_ot_status(dev, &status);
if (copy_to_user(argp, &status, sizeof(int))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_CLEAR_LOG: {
ret = ssd_clear_log(dev);
break;
}
case SSD_CMD_CLEAR_SMART: {
ret = ssd_clear_smart(dev);
break;
}
case SSD_CMD_SW_LOG: {
struct ssd_sw_log_info sw_log;
if (copy_from_user(&sw_log, argp, sizeof(struct ssd_sw_log_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
ret = ssd_gen_swlog(dev, sw_log.event, sw_log.data);
break;
}
case SSD_CMD_GET_LABEL: {
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
ret = -EINVAL;
break;
}
if (copy_to_user(argp, &dev->label, sizeof(struct ssd_label))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_VERSION: {
struct ssd_version_info ver;
mutex_lock(&dev->fw_mutex);
ret = __ssd_get_version(dev, &ver);
mutex_unlock(&dev->fw_mutex);
if (ret) {
break;
}
if (copy_to_user(argp, &ver, sizeof(struct ssd_version_info))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_TEMPERATURE: {
int temp;
mutex_lock(&dev->fw_mutex);
ret = __ssd_get_temperature(dev, &temp);
mutex_unlock(&dev->fw_mutex);
if (ret) {
break;
}
if (copy_to_user(argp, &temp, sizeof(int))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_BMSTATUS: {
int status;
mutex_lock(&dev->fw_mutex);
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
if (test_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon)) {
status = SSD_BMSTATUS_WARNING;
} else {
status = SSD_BMSTATUS_OK;
}
} else if(dev->protocol_info.ver > SSD_PROTOCOL_V3) {
ret = __ssd_bm_status(dev, &status);
} else {
status = SSD_BMSTATUS_OK;
}
mutex_unlock(&dev->fw_mutex);
if (ret) {
break;
}
if (copy_to_user(argp, &status, sizeof(int))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_LABEL2: {
void *label;
int length;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
label = &dev->label;
length = sizeof(struct ssd_label);
} else {
label = &dev->labelv3;
length = sizeof(struct ssd_labelv3);
}
if (copy_to_user(argp, label, length)) {
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_FLUSH:
ret = ssd_flush(dev);
if (ret) {
hio_warn("%s: ssd_flush: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
case SSD_CMD_SAVE_MD: {
int save_md = 0;
if (copy_from_user(&save_md, argp, sizeof(int))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
dev->save_md = !!save_md;
break;
}
case SSD_CMD_SET_WMODE: {
int new_wmode = 0;
if (copy_from_user(&new_wmode, argp, sizeof(int))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
ret = __ssd_set_wmode(dev, new_wmode);
if (ret) {
break;
}
break;
}
case SSD_CMD_GET_WMODE: {
if (copy_to_user(argp, &dev->wmode, sizeof(int))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_GET_USER_WMODE: {
if (copy_to_user(argp, &dev->user_wmode, sizeof(int))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
case SSD_CMD_DEBUG: {
struct ssd_debug_info db_info;
if (!finject) {
ret = -EOPNOTSUPP;
break;
}
if (copy_from_user(&db_info, argp, sizeof(struct ssd_debug_info))) {
hio_warn("%s: copy_from_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
if (db_info.type < SSD_DEBUG_NONE || db_info.type >= SSD_DEBUG_NR) {
ret = -EINVAL;
break;
}
/* IO */
if (db_info.type >= SSD_DEBUG_READ_ERR && db_info.type <= SSD_DEBUG_RW_ERR &&
(db_info.data.loc.off + db_info.data.loc.len) > (dev->hw_info.size >> 9)) {
ret = -EINVAL;
break;
}
memcpy(&dev->db_info, &db_info, sizeof(struct ssd_debug_info));
#ifdef SSD_OT_PROTECT
/* temperature */
if (db_info.type == SSD_DEBUG_NONE) {
ssd_check_temperature(dev, SSD_OT_TEMP);
} else if (db_info.type == SSD_DEBUG_LOG) {
if (db_info.data.log.event == SSD_LOG_OVER_TEMP) {
dev->ot_delay = SSD_OT_DELAY;
} else if (db_info.data.log.event == SSD_LOG_NORMAL_TEMP) {
dev->ot_delay = 0;
}
}
#endif
/* offline */
if (db_info.type == SSD_DEBUG_OFFLINE) {
test_and_clear_bit(SSD_ONLINE, &dev->state);
} else if (db_info.type == SSD_DEBUG_NONE) {
(void)test_and_set_bit(SSD_ONLINE, &dev->state);
}
/* log */
if (db_info.type == SSD_DEBUG_LOG && dev->event_call && dev->gd) {
dev->event_call(dev->gd, db_info.data.log.event, 0);
}
break;
}
case SSD_CMD_DRV_PARAM_INFO: {
struct ssd_drv_param_info drv_param;
memset(&drv_param, 0, sizeof(struct ssd_drv_param_info));
drv_param.mode = mode;
drv_param.status_mask = status_mask;
drv_param.int_mode = int_mode;
drv_param.threaded_irq = threaded_irq;
drv_param.log_level = log_level;
drv_param.wmode = wmode;
drv_param.ot_protect = ot_protect;
drv_param.finject = finject;
if (copy_to_user(argp, &drv_param, sizeof(struct ssd_drv_param_info))) {
hio_warn("%s: copy_to_user: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
}
default:
ret = -EINVAL;
break;
}
return ret;
}
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,27))
static int ssd_block_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct ssd_device *dev;
void __user *argp = (void __user *)arg;
int ret = 0;
if (!inode) {
return -EINVAL;
}
dev = inode->i_bdev->bd_disk->private_data;
if (!dev) {
return -EINVAL;
}
#else
static int ssd_block_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long arg)
{
struct ssd_device *dev;
void __user *argp = (void __user *)arg;
int ret = 0;
if (!bdev) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
if (!dev) {
return -EINVAL;
}
#endif
switch (cmd) {
case HDIO_GETGEO: {
struct hd_geometry geo;
geo.cylinders = (dev->hw_info.size & ~0x3f) >> 6;
geo.heads = 4;
geo.sectors = 16;
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,27))
geo.start = get_start_sect(inode->i_bdev);
#else
geo.start = get_start_sect(bdev);
#endif
if (copy_to_user(argp, &geo, sizeof(geo))) {
ret = -EFAULT;
break;
}
break;
}
case BLKFLSBUF:
ret = ssd_flush(dev);
if (ret) {
hio_warn("%s: ssd_flush: failed\n", dev->name);
ret = -EFAULT;
break;
}
break;
default:
if (!dev->slave) {
ret = ssd_ioctl_common(dev, cmd, arg);
} else {
ret = -EFAULT;
}
break;
}
return ret;
}
static void ssd_free_dev(struct kref *kref)
{
struct ssd_device *dev;
if (!kref) {
return;
}
dev = container_of(kref, struct ssd_device, kref);
put_disk(dev->gd);
ssd_put_index(dev->slave, dev->idx);
kfree(dev);
}
static void ssd_put(struct ssd_device *dev)
{
kref_put(&dev->kref, ssd_free_dev);
}
static int ssd_get(struct ssd_device *dev)
{
kref_get(&dev->kref);
return 0;
}
/* block device */
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,27))
static int ssd_block_open(struct inode *inode, struct file *filp)
{
struct ssd_device *dev;
if (!inode) {
return -EINVAL;
}
dev = inode->i_bdev->bd_disk->private_data;
if (!dev) {
return -EINVAL;
}
#else
static int ssd_block_open(struct block_device *bdev, fmode_t mode)
{
struct ssd_device *dev;
if (!bdev) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
if (!dev) {
return -EINVAL;
}
#endif
/*if (!try_module_get(dev->owner))
return -ENODEV;
*/
ssd_get(dev);
atomic_inc(&dev->refcnt);
return 0;
}
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,27))
static int ssd_block_release(struct inode *inode, struct file *filp)
{
struct ssd_device *dev;
if (!inode) {
return -EINVAL;
}
dev = inode->i_bdev->bd_disk->private_data;
if (!dev) {
return -EINVAL;
}
#elif (LINUX_VERSION_CODE <= KERNEL_VERSION(3,9,0))
static int ssd_block_release(struct gendisk *disk, fmode_t mode)
{
struct ssd_device *dev;
if (!disk) {
return -EINVAL;
}
dev = disk->private_data;
if (!dev) {
return -EINVAL;
}
#else
static void ssd_block_release(struct gendisk *disk, fmode_t mode)
{
struct ssd_device *dev;
if (!disk) {
return;
}
dev = disk->private_data;
if (!dev) {
return;
}
#endif
atomic_dec(&dev->refcnt);
ssd_put(dev);
//module_put(dev->owner);
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(3,9,0))
return 0;
#endif
}
static struct block_device_operations ssd_fops = {
.owner = THIS_MODULE,
.open = ssd_block_open,
.release = ssd_block_release,
.ioctl = ssd_block_ioctl,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16))
.getgeo = ssd_block_getgeo,
#endif
};
static void ssd_init_trim(ssd_device_t *dev)
{
#if (defined SSD_TRIM && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)))
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
return;
}
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, dev->rq);
#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)) || (defined RHEL_MAJOR && RHEL_MAJOR >= 6))
dev->rq->limits.discard_zeroes_data = 1;
dev->rq->limits.discard_alignment = 4096;
dev->rq->limits.discard_granularity = 4096;
#endif
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2_4) {
dev->rq->limits.max_discard_sectors = dev->hw_info.sg_max_sec;
} else {
dev->rq->limits.max_discard_sectors = (dev->hw_info.sg_max_sec) * (dev->hw_info.cmd_max_sg);
}
#endif
}
static void ssd_cleanup_queue(struct ssd_device *dev)
{
ssd_wait_io(dev);
blk_cleanup_queue(dev->rq);
dev->rq = NULL;
}
static int ssd_init_queue(struct ssd_device *dev)
{
dev->rq = blk_alloc_queue(GFP_KERNEL);
if (dev->rq == NULL) {
hio_warn("%s: alloc queue: failed\n ", dev->name);
goto out_init_queue;
}
/* must be first */
blk_queue_make_request(dev->rq, ssd_make_request);
#if ((LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34)) && !(defined RHEL_MAJOR && RHEL_MAJOR == 6))
blk_queue_max_hw_segments(dev->rq, dev->hw_info.cmd_max_sg);
blk_queue_max_phys_segments(dev->rq, dev->hw_info.cmd_max_sg);
blk_queue_max_sectors(dev->rq, dev->hw_info.sg_max_sec);
#else
blk_queue_max_segments(dev->rq, dev->hw_info.cmd_max_sg);
blk_queue_max_hw_sectors(dev->rq, dev->hw_info.sg_max_sec);
#endif
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,31))
blk_queue_hardsect_size(dev->rq, 512);
#else
blk_queue_logical_block_size(dev->rq, 512);
#endif
/* not work for make_request based drivers(bio) */
blk_queue_max_segment_size(dev->rq, dev->hw_info.sg_max_sec << 9);
blk_queue_bounce_limit(dev->rq, BLK_BOUNCE_HIGH);
dev->rq->queuedata = dev;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
blk_queue_issue_flush_fn(dev->rq, ssd_issue_flush_fn);
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
queue_flag_set_unlocked(QUEUE_FLAG_NONROT, dev->rq);
#endif
ssd_init_trim(dev);
return 0;
out_init_queue:
return -ENOMEM;
}
static void ssd_cleanup_blkdev(struct ssd_device *dev)
{
del_gendisk(dev->gd);
}
static int ssd_init_blkdev(struct ssd_device *dev)
{
if (dev->gd) {
put_disk(dev->gd);
}
dev->gd = alloc_disk(ssd_minors);
if (!dev->gd) {
hio_warn("%s: alloc_disk fail\n", dev->name);
goto out_alloc_gd;
}
dev->gd->major = dev->major;
dev->gd->first_minor = dev->idx * ssd_minors;
dev->gd->fops = &ssd_fops;
dev->gd->queue = dev->rq;
dev->gd->private_data = dev;
dev->gd->driverfs_dev = &dev->pdev->dev;
snprintf (dev->gd->disk_name, sizeof(dev->gd->disk_name), "%s", dev->name);
set_capacity(dev->gd, dev->hw_info.size >> 9);
add_disk(dev->gd);
return 0;
out_alloc_gd:
return -ENOMEM;
}
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,10))
static int ssd_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
#else
static long ssd_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
#endif
{
struct ssd_device *dev;
if (!file) {
return -EINVAL;
}
dev = file->private_data;
if (!dev) {
return -EINVAL;
}
return (long)ssd_ioctl_common(dev, cmd, arg);
}
static int ssd_open(struct inode *inode, struct file *file)
{
struct ssd_device *dev = NULL;
struct ssd_device *n = NULL;
int idx;
int ret = -ENODEV;
if (!inode || !file) {
return -EINVAL;
}
idx = iminor(inode);
list_for_each_entry_safe(dev, n, &ssd_list, list) {
if (dev->idx == idx) {
ret = 0;
break;
}
}
if (ret) {
return ret;
}
file->private_data = dev;
ssd_get(dev);
return 0;
}
static int ssd_release(struct inode *inode, struct file *file)
{
struct ssd_device *dev;
if (!file) {
return -EINVAL;
}
dev = file->private_data;
if (!dev) {
return -EINVAL;
}
ssd_put(dev);
file->private_data = NULL;
return 0;
}
static struct file_operations ssd_cfops = {
.owner = THIS_MODULE,
.open = ssd_open,
.release = ssd_release,
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,10))
.ioctl = ssd_ioctl,
#else
.unlocked_ioctl = ssd_ioctl,
#endif
};
static void ssd_cleanup_chardev(struct ssd_device *dev)
{
if (dev->slave) {
return;
}
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,12))
class_simple_device_remove(MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx));
devfs_remove("c%s", dev->name);
#elif (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,14))
class_device_destroy(ssd_class, MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx));
devfs_remove("c%s", dev->name);
#elif (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,17))
class_device_destroy(ssd_class, MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx));
devfs_remove("c%s", dev->name);
#elif (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,24))
class_device_destroy(ssd_class, MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx));
#else
device_destroy(ssd_class, MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx));
#endif
}
static int ssd_init_chardev(struct ssd_device *dev)
{
int ret = 0;
if (dev->slave) {
return 0;
}
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,12))
ret = devfs_mk_cdev(MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx), S_IFCHR|S_IRUSR|S_IWUSR, "c%s", dev->name);
if (ret) {
goto out;
}
class_simple_device_add(ssd_class, MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx), NULL, "c%s", dev->name);
out:
#elif (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,14))
ret = devfs_mk_cdev(MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx), S_IFCHR|S_IRUSR|S_IWUSR, "c%s", dev->name);
if (ret) {
goto out;
}
class_device_create(ssd_class, MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx), NULL, "c%s", dev->name);
out:
#elif (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,17))
ret = devfs_mk_cdev(MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx), S_IFCHR|S_IRUSR|S_IWUSR, "c%s", dev->name);
if (ret) {
goto out;
}
class_device_create(ssd_class, NULL, MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx), NULL, "c%s", dev->name);
out:
#elif (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,24))
class_device_create(ssd_class, NULL, MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx), NULL, "c%s", dev->name);
#elif (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,26))
device_create(ssd_class, NULL, MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx), "c%s", dev->name);
#elif (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,27))
device_create_drvdata(ssd_class, NULL, MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx), NULL, "c%s", dev->name);
#else
device_create(ssd_class, NULL, MKDEV((dev_t)dev->cmajor, (dev_t)dev->idx), NULL, "c%s", dev->name);
#endif
return ret;
}
static int ssd_check_hw(struct ssd_device *dev)
{
uint32_t test_data = 0x55AA5AA5;
uint32_t read_data;
ssd_reg32_write(dev->ctrlp + SSD_BRIDGE_TEST_REG, test_data);
read_data = ssd_reg32_read(dev->ctrlp + SSD_BRIDGE_TEST_REG);
if (read_data != ~(test_data)) {
//hio_warn("%s: check bridge error: %#x\n", dev->name, read_data);
return -1;
}
return 0;
}
static int ssd_check_fw(struct ssd_device *dev)
{
uint32_t val = 0;
int i;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_1_3) {
return 0;
}
for (i=0; i<SSD_CONTROLLER_WAIT; i++) {
val = ssd_reg32_read(dev->ctrlp + SSD_HW_STATUS_REG);
if ((val & 0x1) && ((val >> 8) & 0x1)) {
break;
}
msleep(SSD_INIT_WAIT);
}
if (!(val & 0x1)) {
/* controller fw status */
hio_warn("%s: controller firmware load failed: %#x\n", dev->name, val);
return -1;
} else if (!((val >> 8) & 0x1)) {
/* controller state */
hio_warn("%s: controller state error: %#x\n", dev->name, val);
return -1;
}
val = ssd_reg32_read(dev->ctrlp + SSD_RELOAD_FW_REG);
if (val) {
dev->reload_fw = 1;
}
return 0;
}
static int ssd_init_fw_info(struct ssd_device *dev)
{
uint32_t val;
int ret = 0;
val = ssd_reg32_read(dev->ctrlp + SSD_BRIDGE_VER_REG);
dev->hw_info.bridge_ver = val & 0xFFF;
if (dev->hw_info.bridge_ver < SSD_FW_MIN) {
hio_warn("%s: bridge firmware version %03X is not supported\n", dev->name, dev->hw_info.bridge_ver);
return -EINVAL;
}
hio_info("%s: bridge firmware version: %03X\n", dev->name, dev->hw_info.bridge_ver);
ret = ssd_check_fw(dev);
if (ret) {
goto out;
}
out:
/* skip error if not in standard mode */
if (mode != SSD_DRV_MODE_STANDARD) {
ret = 0;
}
return ret;
}
static int ssd_check_clock(struct ssd_device *dev)
{
uint32_t val;
int ret = 0;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_1_3) {
return 0;
}
val = ssd_reg32_read(dev->ctrlp + SSD_HW_STATUS_REG);
/* clock status */
if (!((val >> 4 ) & 0x1)) {
if (!test_and_set_bit(SSD_HWMON_CLOCK(SSD_CLOCK_166M_LOST), &dev->hwmon)) {
hio_warn("%s: 166MHz clock losed: %#x\n", dev->name, val);
ssd_gen_swlog(dev, SSD_LOG_CLK_FAULT, val);
}
ret = -1;
}
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
if (!((val >> 5 ) & 0x1)) {
if (!test_and_set_bit(SSD_HWMON_CLOCK(SSD_CLOCK_166M_SKEW), &dev->hwmon)) {
hio_warn("%s: 166MHz clock is skew: %#x\n", dev->name, val);
ssd_gen_swlog(dev, SSD_LOG_CLK_FAULT, val);
}
ret = -1;
}
if (!((val >> 6 ) & 0x1)) {
if (!test_and_set_bit(SSD_HWMON_CLOCK(SSD_CLOCK_156M_LOST), &dev->hwmon)) {
hio_warn("%s: 156.25MHz clock lost: %#x\n", dev->name, val);
ssd_gen_swlog(dev, SSD_LOG_CLK_FAULT, val);
}
ret = -1;
}
if (!((val >> 7 ) & 0x1)) {
if (!test_and_set_bit(SSD_HWMON_CLOCK(SSD_CLOCK_156M_SKEW), &dev->hwmon)) {
hio_warn("%s: 156.25MHz clock is skew: %#x\n", dev->name, val);
ssd_gen_swlog(dev, SSD_LOG_CLK_FAULT, val);
}
ret = -1;
}
}
return ret;
}
static int ssd_check_volt(struct ssd_device *dev)
{
int i = 0;
uint64_t val;
uint32_t adc_val;
int ret =0;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
return 0;
}
for (i=0; i<dev->hw_info.nr_ctrl; i++) {
/* 1.0v */
if (!test_bit(SSD_HWMON_FPGA(i, SSD_FPGA_1V0), &dev->hwmon)) {
val = ssd_reg_read(dev->ctrlp + SSD_FPGA_1V0_REG0 + i * SSD_CTRL_REG_ZONE_SZ);
adc_val = SSD_FPGA_VOLT_MAX(val);
if (adc_val < SSD_FPGA_1V0_ADC_MIN || adc_val > SSD_FPGA_1V0_ADC_MAX) {
(void)test_and_set_bit(SSD_HWMON_FPGA(i, SSD_FPGA_1V0), &dev->hwmon);
hio_warn("%s: controller %d 1.0V fault: %d mV.\n", dev->name, i, SSD_FPGA_VOLT(adc_val));
ssd_gen_swlog(dev, SSD_LOG_VOLT_FAULT, SSD_VOLT_LOG_DATA(SSD_FPGA_1V0, i, adc_val));
ret = -1;
}
adc_val = SSD_FPGA_VOLT_MIN(val);
if (adc_val < SSD_FPGA_1V0_ADC_MIN || adc_val > SSD_FPGA_1V0_ADC_MAX) {
(void)test_and_set_bit(SSD_HWMON_FPGA(i, SSD_FPGA_1V0), &dev->hwmon);
hio_warn("%s: controller %d 1.0V fault: %d mV.\n", dev->name, i, SSD_FPGA_VOLT(adc_val));
ssd_gen_swlog(dev, SSD_LOG_VOLT_FAULT, SSD_VOLT_LOG_DATA(SSD_FPGA_1V0, i, adc_val));
ret = -2;
}
}
/* 1.8v */
if (!test_bit(SSD_HWMON_FPGA(i, SSD_FPGA_1V8), &dev->hwmon)) {
val = ssd_reg_read(dev->ctrlp + SSD_FPGA_1V8_REG0 + i * SSD_CTRL_REG_ZONE_SZ);
adc_val = SSD_FPGA_VOLT_MAX(val);
if (adc_val < SSD_FPGA_1V8_ADC_MIN || adc_val > SSD_FPGA_1V8_ADC_MAX) {
(void)test_and_set_bit(SSD_HWMON_FPGA(i, SSD_FPGA_1V8), &dev->hwmon);
hio_warn("%s: controller %d 1.8V fault: %d mV.\n", dev->name, i, SSD_FPGA_VOLT(adc_val));
ssd_gen_swlog(dev, SSD_LOG_VOLT_FAULT, SSD_VOLT_LOG_DATA(SSD_FPGA_1V8, i, adc_val));
ret = -3;
}
adc_val = SSD_FPGA_VOLT_MIN(val);
if (adc_val < SSD_FPGA_1V8_ADC_MIN || adc_val > SSD_FPGA_1V8_ADC_MAX) {
(void)test_and_set_bit(SSD_HWMON_FPGA(i, SSD_FPGA_1V8), &dev->hwmon);
hio_warn("%s: controller %d 1.8V fault: %d mV.\n", dev->name, i, SSD_FPGA_VOLT(adc_val));
ssd_gen_swlog(dev, SSD_LOG_VOLT_FAULT, SSD_VOLT_LOG_DATA(SSD_FPGA_1V8, i, adc_val));
ret = -4;
}
}
}
return ret;
}
static int ssd_check_reset_sync(struct ssd_device *dev)
{
uint32_t val;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_1_3) {
return 0;
}
val = ssd_reg32_read(dev->ctrlp + SSD_HW_STATUS_REG);
if (!((val >> 8) & 0x1)) {
/* controller state */
hio_warn("%s: controller state error: %#x\n", dev->name, val);
return -1;
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
return 0;
}
if (((val >> 9 ) & 0x1)) {
hio_warn("%s: controller reset asynchronously: %#x\n", dev->name, val);
ssd_gen_swlog(dev, SSD_LOG_CTRL_RST_SYNC, val);
return -1;
}
return 0;
}
static int ssd_check_hw_bh(struct ssd_device *dev)
{
int ret;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_1_3) {
return 0;
}
/* clock status */
ret = ssd_check_clock(dev);
if (ret) {
goto out;
}
out:
/* skip error if not in standard mode */
if (mode != SSD_DRV_MODE_STANDARD) {
ret = 0;
}
return ret;
}
static int ssd_check_controller(struct ssd_device *dev)
{
int ret;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_1_3) {
return 0;
}
/* sync reset */
ret = ssd_check_reset_sync(dev);
if (ret) {
goto out;
}
out:
/* skip error if not in standard mode */
if (mode != SSD_DRV_MODE_STANDARD) {
ret = 0;
}
return ret;
}
static int ssd_check_controller_bh(struct ssd_device *dev)
{
uint32_t test_data = 0x55AA5AA5;
uint32_t val;
int reg_base, reg_sz;
int init_wait = 0;
int i;
int ret = 0;
if (mode != SSD_DRV_MODE_STANDARD) {
return 0;
}
/* controller */
val = ssd_reg32_read(dev->ctrlp + SSD_READY_REG);
if (val & 0x1) {
hio_warn("%s: controller 0 not ready\n", dev->name);
return -1;
}
for (i=0; i<dev->hw_info.nr_ctrl; i++) {
reg_base = SSD_CTRL_TEST_REG0 + i * SSD_CTRL_TEST_REG_SZ;
ssd_reg32_write(dev->ctrlp + reg_base, test_data);
val = ssd_reg32_read(dev->ctrlp + reg_base);
if (val != ~(test_data)) {
hio_warn("%s: check controller %d error: %#x\n", dev->name, i, val);
return -1;
}
}
/* clock */
ret = ssd_check_volt(dev);
if (ret) {
return ret;
}
/* ddr */
if (dev->protocol_info.ver > SSD_PROTOCOL_V3) {
reg_base = SSD_PV3_RAM_STATUS_REG0;
reg_sz = SSD_PV3_RAM_STATUS_REG_SZ;
for (i=0; i<dev->hw_info.nr_ctrl; i++) {
check_ram_status:
val = ssd_reg32_read(dev->ctrlp + reg_base);
if (!((val >> 1) & 0x1)) {
init_wait++;
if (init_wait <= SSD_RAM_INIT_MAX_WAIT) {
msleep(SSD_INIT_WAIT);
goto check_ram_status;
} else {
hio_warn("%s: controller %d ram init failed: %#x\n", dev->name, i, val);
ssd_gen_swlog(dev, SSD_LOG_DDR_INIT_ERR, i);
return -1;
}
}
reg_base += reg_sz;
}
}
/* ch info */
for (i=0; i<SSD_CH_INFO_MAX_WAIT; i++) {
val = ssd_reg32_read(dev->ctrlp + SSD_CH_INFO_REG);
if (!((val >> 31) & 0x1)) {
break;
}
msleep(SSD_INIT_WAIT);
}
if ((val >> 31) & 0x1) {
hio_warn("%s: channel info init failed: %#x\n", dev->name, val);
return -1;
}
return 0;
}
static int ssd_init_protocol_info(struct ssd_device *dev)
{
uint32_t val;
val = ssd_reg32_read(dev->ctrlp + SSD_PROTOCOL_VER_REG);
if (val == (uint32_t)-1) {
hio_warn("%s: protocol version error: %#x\n", dev->name, val);
return -EINVAL;
}
dev->protocol_info.ver = val;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
dev->protocol_info.init_state_reg = SSD_INIT_STATE_REG0;
dev->protocol_info.init_state_reg_sz = SSD_INIT_STATE_REG_SZ;
dev->protocol_info.chip_info_reg = SSD_CHIP_INFO_REG0;
dev->protocol_info.chip_info_reg_sz = SSD_CHIP_INFO_REG_SZ;
} else {
dev->protocol_info.init_state_reg = SSD_PV3_INIT_STATE_REG0;
dev->protocol_info.init_state_reg_sz = SSD_PV3_INIT_STATE_REG_SZ;
dev->protocol_info.chip_info_reg = SSD_PV3_CHIP_INFO_REG0;
dev->protocol_info.chip_info_reg_sz = SSD_PV3_CHIP_INFO_REG_SZ;
}
return 0;
}
static int ssd_init_hw_info(struct ssd_device *dev)
{
uint64_t val64;
uint32_t val;
uint32_t nr_ctrl;
int ret = 0;
/* base info */
val = ssd_reg32_read(dev->ctrlp + SSD_RESP_INFO_REG);
dev->hw_info.resp_ptr_sz = 16 * (1U << (val & 0xFF));
dev->hw_info.resp_msg_sz = 16 * (1U << ((val >> 8) & 0xFF));
if (0 == dev->hw_info.resp_ptr_sz || 0 == dev->hw_info.resp_msg_sz) {
hio_warn("%s: response info error\n", dev->name);
ret = -EINVAL;
goto out;
}
val = ssd_reg32_read(dev->ctrlp + SSD_BRIDGE_INFO_REG);
dev->hw_info.cmd_fifo_sz = 1U << ((val >> 4) & 0xF);
dev->hw_info.cmd_max_sg = 1U << ((val >> 8) & 0xF);
dev->hw_info.sg_max_sec = 1U << ((val >> 12) & 0xF);
dev->hw_info.cmd_fifo_sz_mask = dev->hw_info.cmd_fifo_sz - 1;
if (0 == dev->hw_info.cmd_fifo_sz || 0 == dev->hw_info.cmd_max_sg || 0 == dev->hw_info.sg_max_sec) {
hio_warn("%s: cmd info error\n", dev->name);
ret = -EINVAL;
goto out;
}
/* check hw */
if (ssd_check_hw_bh(dev)) {
hio_warn("%s: check hardware status failed\n", dev->name);
ret = -EINVAL;
goto out;
}
if (ssd_check_controller(dev)) {
hio_warn("%s: check controller state failed\n", dev->name);
ret = -EINVAL;
goto out;
}
/* nr controller : read again*/
val = ssd_reg32_read(dev->ctrlp + SSD_BRIDGE_INFO_REG);
dev->hw_info.nr_ctrl = (val >> 16) & 0xF;
/* nr ctrl configured */
nr_ctrl = (val >> 20) & 0xF;
if (0 == dev->hw_info.nr_ctrl) {
hio_warn("%s: nr controller error: %u\n", dev->name, dev->hw_info.nr_ctrl);
ret = -EINVAL;
goto out;
} else if (0 != nr_ctrl && nr_ctrl != dev->hw_info.nr_ctrl) {
hio_warn("%s: nr controller error: configured %u but found %u\n", dev->name, nr_ctrl, dev->hw_info.nr_ctrl);
if (mode <= SSD_DRV_MODE_STANDARD) {
ret = -EINVAL;
goto out;
}
}
if (ssd_check_controller_bh(dev)) {
hio_warn("%s: check controller failed\n", dev->name);
ret = -EINVAL;
goto out;
}
val = ssd_reg32_read(dev->ctrlp + SSD_PCB_VER_REG);
dev->hw_info.pcb_ver = (uint8_t) ((val >> 4) & 0xF) + 'A' -1;
if ((val & 0xF) != 0xF) {
dev->hw_info.upper_pcb_ver = (uint8_t) (val & 0xF) + 'A' -1;
}
if (dev->hw_info.pcb_ver < 'A' || (0 != dev->hw_info.upper_pcb_ver && dev->hw_info.upper_pcb_ver < 'A')) {
hio_warn("%s: PCB version error: %#x %#x\n", dev->name, dev->hw_info.pcb_ver, dev->hw_info.upper_pcb_ver);
ret = -EINVAL;
goto out;
}
/* channel info */
if (mode <= SSD_DRV_MODE_DEBUG) {
val = ssd_reg32_read(dev->ctrlp + SSD_CH_INFO_REG);
dev->hw_info.nr_data_ch = val & 0xFF;
dev->hw_info.nr_ch = dev->hw_info.nr_data_ch + ((val >> 8) & 0xFF);
dev->hw_info.nr_chip = (val >> 16) & 0xFF;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
dev->hw_info.max_ch = 1;
while (dev->hw_info.max_ch < dev->hw_info.nr_ch) dev->hw_info.max_ch <<= 1;
} else {
/* set max channel 32 */
dev->hw_info.max_ch = 32;
}
if (0 == dev->hw_info.nr_chip) {
//for debug mode
dev->hw_info.nr_chip = 1;
}
//xx
dev->hw_info.id_size = SSD_NAND_ID_SZ;
dev->hw_info.max_ce = SSD_NAND_MAX_CE;
if (0 == dev->hw_info.nr_data_ch || 0 == dev->hw_info.nr_ch || 0 == dev->hw_info.nr_chip) {
hio_warn("%s: channel info error: data_ch %u ch %u chip %u\n", dev->name, dev->hw_info.nr_data_ch, dev->hw_info.nr_ch, dev->hw_info.nr_chip);
ret = -EINVAL;
goto out;
}
}
/* ram info */
if (mode <= SSD_DRV_MODE_DEBUG) {
val = ssd_reg32_read(dev->ctrlp + SSD_RAM_INFO_REG);
dev->hw_info.ram_size = 0x4000000ull * (1ULL << (val & 0xF));
dev->hw_info.ram_align = 1U << ((val >> 12) & 0xF);
if (dev->hw_info.ram_align < SSD_RAM_ALIGN) {
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
dev->hw_info.ram_align = SSD_RAM_ALIGN;
} else {
hio_warn("%s: ram align error: %u\n", dev->name, dev->hw_info.ram_align);
ret = -EINVAL;
goto out;
}
}
dev->hw_info.ram_max_len = 0x1000 * (1U << ((val >> 16) & 0xF));
if (0 == dev->hw_info.ram_size || 0 == dev->hw_info.ram_align || 0 == dev->hw_info.ram_max_len || dev->hw_info.ram_align > dev->hw_info.ram_max_len) {
hio_warn("%s: ram info error\n", dev->name);
ret = -EINVAL;
goto out;
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
dev->hw_info.log_sz = SSD_LOG_MAX_SZ;
} else {
val = ssd_reg32_read(dev->ctrlp + SSD_LOG_INFO_REG);
dev->hw_info.log_sz = 0x1000 * (1U << (val & 0xFF));
}
if (0 == dev->hw_info.log_sz) {
hio_warn("%s: log size error\n", dev->name);
ret = -EINVAL;
goto out;
}
val = ssd_reg32_read(dev->ctrlp + SSD_BBT_BASE_REG);
dev->hw_info.bbt_base = 0x40000ull * (val & 0xFFFF);
dev->hw_info.bbt_size = 0x40000 * (((val >> 16) & 0xFFFF) + 1) / (dev->hw_info.max_ch * dev->hw_info.nr_chip);
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
if (dev->hw_info.bbt_base > dev->hw_info.ram_size || 0 == dev->hw_info.bbt_size) {
hio_warn("%s: bbt info error\n", dev->name);
ret = -EINVAL;
goto out;
}
}
val = ssd_reg32_read(dev->ctrlp + SSD_ECT_BASE_REG);
dev->hw_info.md_base = 0x40000ull * (val & 0xFFFF);
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
dev->hw_info.md_size = 0x40000 * (((val >> 16) & 0xFFF) + 1) / (dev->hw_info.max_ch * dev->hw_info.nr_chip);
} else {
dev->hw_info.md_size = 0x40000 * (((val >> 16) & 0xFFF) + 1) / (dev->hw_info.nr_chip);
}
dev->hw_info.md_entry_sz = 8 * (1U << ((val >> 28) & 0xF));
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3) {
if (dev->hw_info.md_base > dev->hw_info.ram_size || 0 == dev->hw_info.md_size ||
0 == dev->hw_info.md_entry_sz || dev->hw_info.md_entry_sz > dev->hw_info.md_size) {
hio_warn("%s: md info error\n", dev->name);
ret = -EINVAL;
goto out;
}
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
dev->hw_info.nand_wbuff_base = dev->hw_info.ram_size + 1;
} else {
val = ssd_reg32_read(dev->ctrlp + SSD_NAND_BUFF_BASE);
dev->hw_info.nand_wbuff_base = 0x8000ull * val;
}
}
/* flash info */
if (mode <= SSD_DRV_MODE_DEBUG) {
if (dev->hw_info.nr_ctrl > 1) {
val = ssd_reg32_read(dev->ctrlp + SSD_CTRL_VER_REG);
dev->hw_info.ctrl_ver = val & 0xFFF;
hio_info("%s: controller firmware version: %03X\n", dev->name, dev->hw_info.ctrl_ver);
}
val64 = ssd_reg_read(dev->ctrlp + SSD_FLASH_INFO_REG0);
dev->hw_info.nand_vendor_id = ((val64 >> 56) & 0xFF);
dev->hw_info.nand_dev_id = ((val64 >> 48) & 0xFF);
dev->hw_info.block_count = (((val64 >> 32) & 0xFFFF) + 1);
dev->hw_info.page_count = ((val64>>16) & 0xFFFF);
dev->hw_info.page_size = (val64 & 0xFFFF);
val = ssd_reg32_read(dev->ctrlp + SSD_BB_INFO_REG);
dev->hw_info.bbf_pages = val & 0xFF;
dev->hw_info.bbf_seek = (val >> 8) & 0x1;
if (0 == dev->hw_info.block_count || 0 == dev->hw_info.page_count || 0 == dev->hw_info.page_size || dev->hw_info.block_count > INT_MAX) {
hio_warn("%s: flash info error\n", dev->name);
ret = -EINVAL;
goto out;
}
//xx
dev->hw_info.oob_size = SSD_NAND_OOB_SZ; //(dev->hw_info.page_size) >> 5;
val = ssd_reg32_read(dev->ctrlp + SSD_VALID_PAGES_REG);
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
dev->hw_info.valid_pages = val & 0x3FF;
dev->hw_info.max_valid_pages = (val>>20) & 0x3FF;
} else {
dev->hw_info.valid_pages = val & 0x7FFF;
dev->hw_info.max_valid_pages = (val>>15) & 0x7FFF;
}
if (0 == dev->hw_info.valid_pages || 0 == dev->hw_info.max_valid_pages ||
dev->hw_info.valid_pages > dev->hw_info.max_valid_pages || dev->hw_info.max_valid_pages > dev->hw_info.page_count) {
hio_warn("%s: valid page info error: valid_pages %d, max_valid_pages %d\n", dev->name, dev->hw_info.valid_pages, dev->hw_info.max_valid_pages);
ret = -EINVAL;
goto out;
}
val = ssd_reg32_read(dev->ctrlp + SSD_RESERVED_BLKS_REG);
dev->hw_info.reserved_blks = val & 0xFFFF;
dev->hw_info.md_reserved_blks = (val >> 16) & 0xFF;
if (dev->protocol_info.ver <= SSD_PROTOCOL_V3) {
dev->hw_info.md_reserved_blks = SSD_BBT_RESERVED;
}
if (dev->hw_info.reserved_blks > dev->hw_info.block_count || dev->hw_info.md_reserved_blks > dev->hw_info.block_count) {
hio_warn("%s: reserved blocks info error: reserved_blks %d, md_reserved_blks %d\n", dev->name, dev->hw_info.reserved_blks, dev->hw_info.md_reserved_blks);
ret = -EINVAL;
goto out;
}
}
/* size */
if (mode < SSD_DRV_MODE_DEBUG) {
dev->hw_info.size = (uint64_t)dev->hw_info.valid_pages * dev->hw_info.page_size;
dev->hw_info.size *= (dev->hw_info.block_count - dev->hw_info.reserved_blks);
dev->hw_info.size *= ((uint64_t)dev->hw_info.nr_data_ch * (uint64_t)dev->hw_info.nr_chip * (uint64_t)dev->hw_info.nr_ctrl);
}
/* extend hardware info */
val = ssd_reg32_read(dev->ctrlp + SSD_PCB_VER_REG);
dev->hw_info_ext.board_type = (val >> 24) & 0xF;
dev->hw_info_ext.form_factor = SSD_FORM_FACTOR_FHHL;
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2_1) {
dev->hw_info_ext.form_factor = (val >> 31) & 0x1;
}
/*
dev->hw_info_ext.cap_type = (val >> 28) & 0x3;
if (SSD_BM_CAP_VINA != dev->hw_info_ext.cap_type && SSD_BM_CAP_JH != dev->hw_info_ext.cap_type) {
dev->hw_info_ext.cap_type = SSD_BM_CAP_VINA;
}*/
/* power loss protect */
val = ssd_reg32_read(dev->ctrlp + SSD_PLP_INFO_REG);
dev->hw_info_ext.plp_type = (val & 0x3);
if (dev->protocol_info.ver >= SSD_PROTOCOL_V3_2) {
/* 3 or 4 cap */
dev->hw_info_ext.cap_type = ((val >> 2)& 0x1);
}
/* work mode */
val = ssd_reg32_read(dev->ctrlp + SSD_CH_INFO_REG);
dev->hw_info_ext.work_mode = (val >> 25) & 0x1;
out:
/* skip error if not in standard mode */
if (mode != SSD_DRV_MODE_STANDARD) {
ret = 0;
}
return ret;
}
static void ssd_cleanup_response(struct ssd_device *dev)
{
int resp_msg_sz = dev->hw_info.resp_msg_sz * dev->hw_info.cmd_fifo_sz * SSD_MSIX_VEC;
int resp_ptr_sz = dev->hw_info.resp_ptr_sz * SSD_MSIX_VEC;
pci_free_consistent(dev->pdev, resp_ptr_sz, dev->resp_ptr_base, dev->resp_ptr_base_dma);
pci_free_consistent(dev->pdev, resp_msg_sz, dev->resp_msg_base, dev->resp_msg_base_dma);
}
static int ssd_init_response(struct ssd_device *dev)
{
int resp_msg_sz = dev->hw_info.resp_msg_sz * dev->hw_info.cmd_fifo_sz * SSD_MSIX_VEC;
int resp_ptr_sz = dev->hw_info.resp_ptr_sz * SSD_MSIX_VEC;
dev->resp_msg_base = pci_alloc_consistent(dev->pdev, resp_msg_sz, &(dev->resp_msg_base_dma));
if (!dev->resp_msg_base) {
hio_warn("%s: unable to allocate resp msg DMA buffer\n", dev->name);
goto out_alloc_resp_msg;
}
memset(dev->resp_msg_base, 0xFF, resp_msg_sz);
dev->resp_ptr_base = pci_alloc_consistent(dev->pdev, resp_ptr_sz, &(dev->resp_ptr_base_dma));
if (!dev->resp_ptr_base){
hio_warn("%s: unable to allocate resp ptr DMA buffer\n", dev->name);
goto out_alloc_resp_ptr;
}
memset(dev->resp_ptr_base, 0, resp_ptr_sz);
dev->resp_idx = *(uint32_t *)(dev->resp_ptr_base) = dev->hw_info.cmd_fifo_sz * 2 - 1;
ssd_reg_write(dev->ctrlp + SSD_RESP_FIFO_REG, dev->resp_msg_base_dma);
ssd_reg_write(dev->ctrlp + SSD_RESP_PTR_REG, dev->resp_ptr_base_dma);
return 0;
out_alloc_resp_ptr:
pci_free_consistent(dev->pdev, resp_msg_sz, dev->resp_msg_base, dev->resp_msg_base_dma);
out_alloc_resp_msg:
return -ENOMEM;
}
static int ssd_cleanup_cmd(struct ssd_device *dev)
{
int msg_sz = ALIGN(sizeof(struct ssd_rw_msg) + (dev->hw_info.cmd_max_sg - 1) * sizeof(struct ssd_sg_entry), SSD_DMA_ALIGN);
int i;
for (i=0; i<(int)dev->hw_info.cmd_fifo_sz; i++) {
kfree(dev->cmd[i].sgl);
}
kfree(dev->cmd);
pci_free_consistent(dev->pdev, (msg_sz * dev->hw_info.cmd_fifo_sz), dev->msg_base, dev->msg_base_dma);
return 0;
}
static int ssd_init_cmd(struct ssd_device *dev)
{
int sgl_sz = sizeof(struct scatterlist) * dev->hw_info.cmd_max_sg;
int cmd_sz = sizeof(struct ssd_cmd) * dev->hw_info.cmd_fifo_sz;
int msg_sz = ALIGN(sizeof(struct ssd_rw_msg) + (dev->hw_info.cmd_max_sg - 1) * sizeof(struct ssd_sg_entry), SSD_DMA_ALIGN);
int i;
spin_lock_init(&dev->cmd_lock);
dev->msg_base = pci_alloc_consistent(dev->pdev, (msg_sz * dev->hw_info.cmd_fifo_sz), &dev->msg_base_dma);
if (!dev->msg_base) {
hio_warn("%s: can not alloc cmd msg\n", dev->name);
goto out_alloc_msg;
}
dev->cmd = kmalloc(cmd_sz, GFP_KERNEL);
if (!dev->cmd) {
hio_warn("%s: can not alloc cmd\n", dev->name);
goto out_alloc_cmd;
}
memset(dev->cmd, 0, cmd_sz);
for (i=0; i<(int)dev->hw_info.cmd_fifo_sz; i++) {
dev->cmd[i].sgl = kmalloc(sgl_sz, GFP_KERNEL);
if (!dev->cmd[i].sgl) {
hio_warn("%s: can not alloc cmd sgl %d\n", dev->name, i);
goto out_alloc_sgl;
}
dev->cmd[i].msg = dev->msg_base + (msg_sz * i);
dev->cmd[i].msg_dma = dev->msg_base_dma + ((dma_addr_t)msg_sz * i);
dev->cmd[i].dev = dev;
dev->cmd[i].tag = i;
dev->cmd[i].flag = 0;
INIT_LIST_HEAD(&dev->cmd[i].list);
}
if (dev->protocol_info.ver < SSD_PROTOCOL_V3) {
dev->scmd = ssd_dispatch_cmd;
} else {
ssd_reg_write(dev->ctrlp + SSD_MSG_BASE_REG, dev->msg_base_dma);
if (finject) {
dev->scmd = ssd_send_cmd_db;
} else {
dev->scmd = ssd_send_cmd;
}
}
return 0;
out_alloc_sgl:
for (i--; i>=0; i--) {
kfree(dev->cmd[i].sgl);
}
kfree(dev->cmd);
out_alloc_cmd:
pci_free_consistent(dev->pdev, (msg_sz * dev->hw_info.cmd_fifo_sz), dev->msg_base, dev->msg_base_dma);
out_alloc_msg:
return -ENOMEM;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30))
static irqreturn_t ssd_interrupt_check(int irq, void *dev_id)
{
struct ssd_queue *queue = (struct ssd_queue *)dev_id;
if (*(uint32_t *)queue->resp_ptr == queue->resp_idx) {
return IRQ_NONE;
}
return IRQ_WAKE_THREAD;
}
static irqreturn_t ssd_interrupt_threaded(int irq, void *dev_id)
{
struct ssd_queue *queue = (struct ssd_queue *)dev_id;
struct ssd_device *dev = (struct ssd_device *)queue->dev;
struct ssd_cmd *cmd;
union ssd_response_msq __msg;
union ssd_response_msq *msg = &__msg;
uint64_t *u64_msg;
uint32_t resp_idx = queue->resp_idx;
uint32_t new_resp_idx = *(uint32_t *)queue->resp_ptr;
uint32_t end_resp_idx;
if (unlikely(resp_idx == new_resp_idx)) {
return IRQ_NONE;
}
end_resp_idx = new_resp_idx & queue->resp_idx_mask;
do {
resp_idx = (resp_idx + 1) & queue->resp_idx_mask;
/* the resp msg */
u64_msg = (uint64_t *)(queue->resp_msg + queue->resp_msg_sz * resp_idx);
msg->u64_msg = *u64_msg;
if (unlikely(msg->u64_msg == (uint64_t)(-1))) {
hio_err("%s: empty resp msg: queue %d idx %u\n", dev->name, queue->idx, resp_idx);
continue;
}
/* clear the resp msg */
*u64_msg = (uint64_t)(-1);
cmd = &queue->cmd[msg->resp_msg.tag];
/*if (unlikely(!cmd->bio)) {
printk(KERN_WARNING "%s: unknown tag %d fun %#x\n",
dev->name, msg->resp_msg.tag, msg->resp_msg.fun);
continue;
}*/
if(unlikely(msg->resp_msg.status & (uint32_t)status_mask)) {
cmd->errors = -EIO;
} else {
cmd->errors = 0;
}
cmd->nr_log = msg->log_resp_msg.nr_log;
ssd_done(cmd);
if (unlikely(msg->resp_msg.fun != SSD_FUNC_READ_LOG && msg->resp_msg.log > 0)) {
(void)test_and_set_bit(SSD_LOG_HW, &dev->state);
if (test_bit(SSD_INIT_WORKQ, &dev->state)) {
queue_work(dev->workq, &dev->log_work);
}
}
if (unlikely(msg->resp_msg.status)) {
if (msg->resp_msg.fun == SSD_FUNC_READ || msg->resp_msg.fun == SSD_FUNC_WRITE) {
hio_err("%s: I/O error %d: tag %d fun %#x\n",
dev->name, msg->resp_msg.status, msg->resp_msg.tag, msg->resp_msg.fun);
/* alarm led */
ssd_set_alarm(dev);
queue->io_stat.nr_rwerr++;
ssd_gen_swlog(dev, SSD_LOG_EIO, msg->u32_msg[0]);
} else {
hio_info("%s: CMD error %d: tag %d fun %#x\n",
dev->name, msg->resp_msg.status, msg->resp_msg.tag, msg->resp_msg.fun);
ssd_gen_swlog(dev, SSD_LOG_ECMD, msg->u32_msg[0]);
}
queue->io_stat.nr_ioerr++;
}
if (msg->resp_msg.fun == SSD_FUNC_READ ||
msg->resp_msg.fun == SSD_FUNC_NAND_READ_WOOB ||
msg->resp_msg.fun == SSD_FUNC_NAND_READ) {
queue->ecc_info.bitflip[msg->resp_msg.bitflip]++;
}
}while (resp_idx != end_resp_idx);
queue->resp_idx = new_resp_idx;
return IRQ_HANDLED;
}
#endif
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
static irqreturn_t ssd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
#else
static irqreturn_t ssd_interrupt(int irq, void *dev_id)
#endif
{
struct ssd_queue *queue = (struct ssd_queue *)dev_id;
struct ssd_device *dev = (struct ssd_device *)queue->dev;
struct ssd_cmd *cmd;
union ssd_response_msq __msg;
union ssd_response_msq *msg = &__msg;
uint64_t *u64_msg;
uint32_t resp_idx = queue->resp_idx;
uint32_t new_resp_idx = *(uint32_t *)queue->resp_ptr;
uint32_t end_resp_idx;
if (unlikely(resp_idx == new_resp_idx)) {
return IRQ_NONE;
}
#if (defined SSD_ESCAPE_IRQ)
if (SSD_INT_MSIX != dev->int_mode) {
dev->irq_cpu = smp_processor_id();
}
#endif
end_resp_idx = new_resp_idx & queue->resp_idx_mask;
do {
resp_idx = (resp_idx + 1) & queue->resp_idx_mask;
/* the resp msg */
u64_msg = (uint64_t *)(queue->resp_msg + queue->resp_msg_sz * resp_idx);
msg->u64_msg = *u64_msg;
if (unlikely(msg->u64_msg == (uint64_t)(-1))) {
hio_err("%s: empty resp msg: queue %d idx %u\n", dev->name, queue->idx, resp_idx);
continue;
}
/* clear the resp msg */
*u64_msg = (uint64_t)(-1);
cmd = &queue->cmd[msg->resp_msg.tag];
/*if (unlikely(!cmd->bio)) {
printk(KERN_WARNING "%s: unknown tag %d fun %#x\n",
dev->name, msg->resp_msg.tag, msg->resp_msg.fun);
continue;
}*/
if(unlikely(msg->resp_msg.status & (uint32_t)status_mask)) {
cmd->errors = -EIO;
} else {
cmd->errors = 0;
}
cmd->nr_log = msg->log_resp_msg.nr_log;
ssd_done_bh(cmd);
if (unlikely(msg->resp_msg.fun != SSD_FUNC_READ_LOG && msg->resp_msg.log > 0)) {
(void)test_and_set_bit(SSD_LOG_HW, &dev->state);
if (test_bit(SSD_INIT_WORKQ, &dev->state)) {
queue_work(dev->workq, &dev->log_work);
}
}
if (unlikely(msg->resp_msg.status)) {
if (msg->resp_msg.fun == SSD_FUNC_READ || msg->resp_msg.fun == SSD_FUNC_WRITE) {
hio_err("%s: I/O error %d: tag %d fun %#x\n",
dev->name, msg->resp_msg.status, msg->resp_msg.tag, msg->resp_msg.fun);
/* alarm led */
ssd_set_alarm(dev);
queue->io_stat.nr_rwerr++;
ssd_gen_swlog(dev, SSD_LOG_EIO, msg->u32_msg[0]);
} else {
hio_info("%s: CMD error %d: tag %d fun %#x\n",
dev->name, msg->resp_msg.status, msg->resp_msg.tag, msg->resp_msg.fun);
ssd_gen_swlog(dev, SSD_LOG_ECMD, msg->u32_msg[0]);
}
queue->io_stat.nr_ioerr++;
}
if (msg->resp_msg.fun == SSD_FUNC_READ ||
msg->resp_msg.fun == SSD_FUNC_NAND_READ_WOOB ||
msg->resp_msg.fun == SSD_FUNC_NAND_READ) {
queue->ecc_info.bitflip[msg->resp_msg.bitflip]++;
}
}while (resp_idx != end_resp_idx);
queue->resp_idx = new_resp_idx;
return IRQ_HANDLED;
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
static irqreturn_t ssd_interrupt_legacy(int irq, void *dev_id, struct pt_regs *regs)
#else
static irqreturn_t ssd_interrupt_legacy(int irq, void *dev_id)
#endif
{
irqreturn_t ret;
struct ssd_queue *queue = (struct ssd_queue *)dev_id;
struct ssd_device *dev = (struct ssd_device *)queue->dev;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
ret = ssd_interrupt(irq, dev_id, regs);
#else
ret = ssd_interrupt(irq, dev_id);
#endif
/* clear intr */
if (IRQ_HANDLED == ret) {
ssd_reg32_write(dev->ctrlp + SSD_CLEAR_INTR_REG, 1);
}
return ret;
}
static void ssd_reset_resp_ptr(struct ssd_device *dev)
{
int i;
for (i=0; i<dev->nr_queue; i++) {
*(uint32_t *)dev->queue[i].resp_ptr = dev->queue[i].resp_idx = (dev->hw_info.cmd_fifo_sz * 2) - 1;
}
}
static void ssd_free_irq(struct ssd_device *dev)
{
int i;
#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) || (defined RHEL_MAJOR && RHEL_MAJOR == 6))
if (SSD_INT_MSIX == dev->int_mode) {
for (i=0; i<dev->nr_queue; i++) {
irq_set_affinity_hint(dev->entry[i].vector, NULL);
}
}
#endif
for (i=0; i<dev->nr_queue; i++) {
free_irq(dev->entry[i].vector, &dev->queue[i]);
}
if (SSD_INT_MSIX == dev->int_mode) {
pci_disable_msix(dev->pdev);
} else if (SSD_INT_MSI == dev->int_mode) {
pci_disable_msi(dev->pdev);
}
}
static int ssd_init_irq(struct ssd_device *dev)
{
#if (!defined MODULE) && (defined SSD_MSIX_AFFINITY_FORCE)
const struct cpumask *cpu_mask;
static int cpu_affinity = 0;
#endif
#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) || (defined RHEL_MAJOR && RHEL_MAJOR == 6))
const struct cpumask *mask;
static int cpu = 0;
int j;
#endif
int i;
unsigned long flags = 0;
int ret = 0;
ssd_reg32_write(dev->ctrlp + SSD_INTR_INTERVAL_REG, 0x800);
#ifdef SSD_ESCAPE_IRQ
dev->irq_cpu = -1;
#endif
if (int_mode >= SSD_INT_MSIX && pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX)) {
dev->nr_queue = SSD_MSIX_VEC;
for (i=0; i<dev->nr_queue; i++) {
dev->entry[i].entry = i;
}
for (;;) {
ret = pci_enable_msix(dev->pdev, dev->entry, dev->nr_queue);
if (ret == 0) {
break;
} else if (ret > 0) {
dev->nr_queue = ret;
} else {
hio_warn("%s: can not enable msix\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out;
}
}
#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) || (defined RHEL_MAJOR && RHEL_MAJOR == 6))
mask = (dev_to_node(&dev->pdev->dev) == -1) ? cpu_online_mask : cpumask_of_node(dev_to_node(&dev->pdev->dev));
if ((0 == cpu) || (!cpumask_intersects(mask, cpumask_of(cpu)))) {
cpu = cpumask_first(mask);
}
for (i=0; i<dev->nr_queue; i++) {
irq_set_affinity_hint(dev->entry[i].vector, cpumask_of(cpu));
cpu = cpumask_next(cpu, mask);
if (cpu >= nr_cpu_ids) {
cpu = cpumask_first(mask);
}
}
#endif
dev->int_mode = SSD_INT_MSIX;
} else if (int_mode >= SSD_INT_MSI && pci_find_capability(dev->pdev, PCI_CAP_ID_MSI)) {
ret = pci_enable_msi(dev->pdev);
if (ret) {
hio_warn("%s: can not enable msi\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out;
}
dev->nr_queue = 1;
dev->entry[0].vector = dev->pdev->irq;
dev->int_mode = SSD_INT_MSI;
} else {
dev->nr_queue = 1;
dev->entry[0].vector = dev->pdev->irq;
dev->int_mode = SSD_INT_LEGACY;
}
for (i=0; i<dev->nr_queue; i++) {
if (dev->nr_queue > 1) {
snprintf(dev->queue[i].name, SSD_QUEUE_NAME_LEN, "%s_e100-%d", dev->name, i);
} else {
snprintf(dev->queue[i].name, SSD_QUEUE_NAME_LEN, "%s_e100", dev->name);
}
dev->queue[i].dev = dev;
dev->queue[i].idx = i;
dev->queue[i].resp_idx = (dev->hw_info.cmd_fifo_sz * 2) - 1;
dev->queue[i].resp_idx_mask = dev->hw_info.cmd_fifo_sz - 1;
dev->queue[i].resp_msg_sz = dev->hw_info.resp_msg_sz;
dev->queue[i].resp_msg = dev->resp_msg_base + dev->hw_info.resp_msg_sz * dev->hw_info.cmd_fifo_sz * i;
dev->queue[i].resp_ptr = dev->resp_ptr_base + dev->hw_info.resp_ptr_sz * i;
*(uint32_t *)dev->queue[i].resp_ptr = dev->queue[i].resp_idx;
dev->queue[i].cmd = dev->cmd;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
flags = IRQF_SHARED;
#else
flags = SA_SHIRQ;
#endif
for (i=0; i<dev->nr_queue; i++) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30))
if (threaded_irq) {
ret = request_threaded_irq(dev->entry[i].vector, ssd_interrupt_check, ssd_interrupt_threaded, flags, dev->queue[i].name, &dev->queue[i]);
} else if (dev->int_mode == SSD_INT_LEGACY) {
ret = request_irq(dev->entry[i].vector, &ssd_interrupt_legacy, flags, dev->queue[i].name, &dev->queue[i]);
} else {
ret = request_irq(dev->entry[i].vector, &ssd_interrupt, flags, dev->queue[i].name, &dev->queue[i]);
}
#else
if (dev->int_mode == SSD_INT_LEGACY) {
ret = request_irq(dev->entry[i].vector, &ssd_interrupt_legacy, flags, dev->queue[i].name, &dev->queue[i]);
} else {
ret = request_irq(dev->entry[i].vector, &ssd_interrupt, flags, dev->queue[i].name, &dev->queue[i]);
}
#endif
if (ret) {
hio_warn("%s: request irq failed\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out_request_irq;
}
#if (!defined MODULE) && (defined SSD_MSIX_AFFINITY_FORCE)
cpu_mask = (dev_to_node(&dev->pdev->dev) == -1) ? cpu_online_mask : cpumask_of_node(dev_to_node(&dev->pdev->dev));
if (SSD_INT_MSIX == dev->int_mode) {
if ((0 == cpu_affinity) || (!cpumask_intersects(mask, cpumask_of(cpu_affinity)))) {
cpu_affinity = cpumask_first(cpu_mask);
}
irq_set_affinity(dev->entry[i].vector, cpumask_of(cpu_affinity));
cpu_affinity = cpumask_next(cpu_affinity, cpu_mask);
if (cpu_affinity >= nr_cpu_ids) {
cpu_affinity = cpumask_first(cpu_mask);
}
}
#endif
}
return ret;
out_request_irq:
#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) || (defined RHEL_MAJOR && RHEL_MAJOR == 6))
if (SSD_INT_MSIX == dev->int_mode) {
for (j=0; j<dev->nr_queue; j++) {
irq_set_affinity_hint(dev->entry[j].vector, NULL);
}
}
#endif
for (i--; i>=0; i--) {
free_irq(dev->entry[i].vector, &dev->queue[i]);
}
if (SSD_INT_MSIX == dev->int_mode) {
pci_disable_msix(dev->pdev);
} else if (SSD_INT_MSI == dev->int_mode) {
pci_disable_msi(dev->pdev);
}
out:
return ret;
}
static void ssd_initial_log(struct ssd_device *dev)
{
uint32_t val;
uint32_t speed, width;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
return;
}
val = ssd_reg32_read(dev->ctrlp + SSD_POWER_ON_REG);
if (val) {
ssd_gen_swlog(dev, SSD_LOG_POWER_ON, dev->hw_info.bridge_ver);
}
val = ssd_reg32_read(dev->ctrlp + SSD_PCIE_LINKSTATUS_REG);
speed = val & 0xF;
width = (val >> 4)& 0x3F;
if (0x1 == speed) {
hio_info("%s: PCIe: 2.5GT/s, x%u\n", dev->name, width);
} else if (0x2 == speed) {
hio_info("%s: PCIe: 5GT/s, x%u\n", dev->name, width);
} else {
hio_info("%s: PCIe: unknown GT/s, x%u\n", dev->name, width);
}
ssd_gen_swlog(dev, SSD_LOG_PCIE_LINK_STATUS, val);
return;
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
static void ssd_hwmon_worker(void *data)
{
struct ssd_device *dev = (struct ssd_device *)data;
#else
static void ssd_hwmon_worker(struct work_struct *work)
{
struct ssd_device *dev = container_of(work, struct ssd_device, hwmon_work);
#endif
if (ssd_check_hw(dev)) {
//hio_err("%s: check hardware failed\n", dev->name);
return;
}
ssd_check_clock(dev);
ssd_check_volt(dev);
ssd_mon_boardvolt(dev);
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
static void ssd_tempmon_worker(void *data)
{
struct ssd_device *dev = (struct ssd_device *)data;
#else
static void ssd_tempmon_worker(struct work_struct *work)
{
struct ssd_device *dev = container_of(work, struct ssd_device, tempmon_work);
#endif
if (ssd_check_hw(dev)) {
//hio_err("%s: check hardware failed\n", dev->name);
return;
}
ssd_mon_temp(dev);
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
static void ssd_capmon_worker(void *data)
{
struct ssd_device *dev = (struct ssd_device *)data;
#else
static void ssd_capmon_worker(struct work_struct *work)
{
struct ssd_device *dev = container_of(work, struct ssd_device, capmon_work);
#endif
uint32_t cap = 0;
uint32_t cap_threshold = SSD_PL_CAP_THRESHOLD;
int ret = 0;
if (dev->protocol_info.ver < SSD_PROTOCOL_V3_2) {
return;
}
if (dev->hw_info_ext.form_factor == SSD_FORM_FACTOR_FHHL && dev->hw_info.pcb_ver < 'B') {
return;
}
/* fault before? */
if (test_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon)) {
ret = ssd_check_pl_cap_fast(dev);
if (ret) {
return;
}
}
/* learn */
ret = ssd_do_cap_learn(dev, &cap);
if (ret) {
hio_err("%s: cap learn failed\n", dev->name);
ssd_gen_swlog(dev, SSD_LOG_CAP_LEARN_FAULT, 0);
return;
}
ssd_gen_swlog(dev, SSD_LOG_CAP_STATUS, cap);
if (SSD_PL_CAP_CP == dev->hw_info_ext.cap_type) {
cap_threshold = SSD_PL_CAP_CP_THRESHOLD;
}
//use the fw event id?
if (cap < cap_threshold) {
if (!test_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_BATTERY_FAULT, 0);
}
} else if (cap >= (cap_threshold + SSD_PL_CAP_THRESHOLD_HYST)) {
if (test_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon)) {
ssd_gen_swlog(dev, SSD_LOG_BATTERY_OK, 0);
}
}
}
static void ssd_routine_start(void *data)
{
struct ssd_device *dev;
if (!data) {
return;
}
dev = data;
dev->routine_tick++;
if (test_bit(SSD_INIT_WORKQ, &dev->state) && !ssd_busy(dev)) {
(void)test_and_set_bit(SSD_LOG_HW, &dev->state);
queue_work(dev->workq, &dev->log_work);
}
if ((dev->routine_tick % SSD_HWMON_ROUTINE_TICK) == 0 && test_bit(SSD_INIT_WORKQ, &dev->state)) {
queue_work(dev->workq, &dev->hwmon_work);
}
if ((dev->routine_tick % SSD_CAPMON_ROUTINE_TICK) == 0 && test_bit(SSD_INIT_WORKQ, &dev->state)) {
queue_work(dev->workq, &dev->capmon_work);
}
if ((dev->routine_tick % SSD_CAPMON2_ROUTINE_TICK) == 0 && test_bit(SSD_HWMON_PL_CAP(SSD_PL_CAP), &dev->hwmon) && test_bit(SSD_INIT_WORKQ, &dev->state)) {
/* CAP fault? check again */
queue_work(dev->workq, &dev->capmon_work);
}
if (test_bit(SSD_INIT_WORKQ, &dev->state)) {
queue_work(dev->workq, &dev->tempmon_work);
}
/* schedule routine */
mod_timer(&dev->routine_timer, jiffies + msecs_to_jiffies(SSD_ROUTINE_INTERVAL));
}
static void ssd_cleanup_routine(struct ssd_device *dev)
{
if (unlikely(mode != SSD_DRV_MODE_STANDARD))
return;
(void)ssd_del_timer(&dev->routine_timer);
(void)ssd_del_timer(&dev->bm_timer);
}
static int ssd_init_routine(struct ssd_device *dev)
{
if (unlikely(mode != SSD_DRV_MODE_STANDARD))
return 0;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
INIT_WORK(&dev->bm_work, ssd_bm_worker, dev);
INIT_WORK(&dev->hwmon_work, ssd_hwmon_worker, dev);
INIT_WORK(&dev->capmon_work, ssd_capmon_worker, dev);
INIT_WORK(&dev->tempmon_work, ssd_tempmon_worker, dev);
#else
INIT_WORK(&dev->bm_work, ssd_bm_worker);
INIT_WORK(&dev->hwmon_work, ssd_hwmon_worker);
INIT_WORK(&dev->capmon_work, ssd_capmon_worker);
INIT_WORK(&dev->tempmon_work, ssd_tempmon_worker);
#endif
/* initial log */
ssd_initial_log(dev);
/* schedule bm routine */
ssd_add_timer(&dev->bm_timer, msecs_to_jiffies(SSD_BM_CAP_LEARNING_DELAY), ssd_bm_routine_start, dev);
/* schedule routine */
ssd_add_timer(&dev->routine_timer, msecs_to_jiffies(SSD_ROUTINE_INTERVAL), ssd_routine_start, dev);
return 0;
}
static void
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38))
__devexit
#endif
ssd_remove_one (struct pci_dev *pdev)
{
struct ssd_device *dev;
if (!pdev) {
return;
}
dev = pci_get_drvdata(pdev);
if (!dev) {
return;
}
list_del_init(&dev->list);
ssd_unregister_sysfs(dev);
/* offline firstly */
test_and_clear_bit(SSD_ONLINE, &dev->state);
/* clean work queue first */
if (!dev->slave) {
test_and_clear_bit(SSD_INIT_WORKQ, &dev->state);
ssd_cleanup_workq(dev);
}
/* flush cache */
(void)ssd_flush(dev);
(void)ssd_save_md(dev);
/* save smart */
if (!dev->slave) {
ssd_save_smart(dev);
}
if (test_and_clear_bit(SSD_INIT_BD, &dev->state)) {
ssd_cleanup_blkdev(dev);
}
if (!dev->slave) {
ssd_cleanup_chardev(dev);
}
/* clean routine */
if (!dev->slave) {
ssd_cleanup_routine(dev);
}
ssd_cleanup_queue(dev);
ssd_cleanup_tag(dev);
ssd_cleanup_thread(dev);
ssd_free_irq(dev);
ssd_cleanup_dcmd(dev);
ssd_cleanup_cmd(dev);
ssd_cleanup_response(dev);
if (!dev->slave) {
ssd_cleanup_log(dev);
}
if (dev->reload_fw) { //reload fw
ssd_reg32_write(dev->ctrlp + SSD_RELOAD_FW_REG, SSD_RELOAD_FW);
}
/* unmap physical adress */
#ifdef LINUX_SUSE_OS
iounmap(dev->ctrlp);
#else
pci_iounmap(pdev, dev->ctrlp);
#endif
release_mem_region(dev->mmio_base, dev->mmio_len);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
ssd_put(dev);
}
static int
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38))
__devinit
#endif
ssd_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct ssd_device *dev;
int ret = 0;
if (!pdev || !ent) {
ret = -EINVAL;
goto out;
}
dev = kmalloc(sizeof(struct ssd_device), GFP_KERNEL);
if (!dev) {
ret = -ENOMEM;
goto out_alloc_dev;
}
memset(dev, 0, sizeof(struct ssd_device));
dev->owner = THIS_MODULE;
if (SSD_SLAVE_PORT_DEVID == ent->device) {
dev->slave = 1;
}
dev->idx = ssd_get_index(dev->slave);
if (dev->idx < 0) {
ret = -ENOMEM;
goto out_get_index;
}
if (!dev->slave) {
snprintf(dev->name, SSD_DEV_NAME_LEN, SSD_DEV_NAME);
ssd_set_dev_name(&dev->name[strlen(SSD_DEV_NAME)], SSD_DEV_NAME_LEN-strlen(SSD_DEV_NAME), dev->idx);
dev->major = ssd_major;
dev->cmajor = ssd_cmajor;
} else {
snprintf(dev->name, SSD_DEV_NAME_LEN, SSD_SDEV_NAME);
ssd_set_dev_name(&dev->name[strlen(SSD_SDEV_NAME)], SSD_DEV_NAME_LEN-strlen(SSD_SDEV_NAME), dev->idx);
dev->major = ssd_major_sl;
dev->cmajor = 0;
}
atomic_set(&(dev->refcnt), 0);
atomic_set(&(dev->tocnt), 0);
mutex_init(&dev->fw_mutex);
//xx
mutex_init(&dev->gd_mutex);
dev->pdev = pdev;
pci_set_drvdata(pdev, dev);
kref_init(&dev->kref);
ret = pci_enable_device(pdev);
if (ret) {
hio_warn("%s: can not enable device\n", dev->name);
goto out_enable_device;
}
pci_set_master(pdev);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,31))
ret = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
#else
ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
#endif
if (ret) {
hio_warn("%s: set dma mask: failed\n", dev->name);
goto out_set_dma_mask;
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,31))
ret = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
#else
ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
#endif
if (ret) {
hio_warn("%s: set consistent dma mask: failed\n", dev->name);
goto out_set_dma_mask;
}
dev->mmio_base = pci_resource_start(pdev, 0);
dev->mmio_len = pci_resource_len(pdev, 0);
if (!request_mem_region(dev->mmio_base, dev->mmio_len, SSD_DEV_NAME)) {
hio_warn("%s: can not reserve MMIO region 0\n", dev->name);
ret = -EBUSY;
goto out_request_mem_region;
}
/* 2.6.9 kernel bug */
dev->ctrlp = pci_iomap(pdev, 0, 0);
if (!dev->ctrlp) {
hio_warn("%s: can not remap IO region 0\n", dev->name);
ret = -ENOMEM;
goto out_pci_iomap;
}
ret = ssd_check_hw(dev);
if (ret) {
hio_err("%s: check hardware failed\n", dev->name);
goto out_check_hw;
}
ret = ssd_init_protocol_info(dev);
if (ret) {
hio_err("%s: init protocol info failed\n", dev->name);
goto out_init_protocol_info;
}
/* alarm led ? */
ssd_clear_alarm(dev);
ret = ssd_init_fw_info(dev);
if (ret) {
hio_err("%s: init firmware info failed\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out_init_fw_info;
}
/* slave port ? */
if (dev->slave) {
goto init_next1;
}
ret = ssd_init_rom_info(dev);
if (ret) {
hio_err("%s: init rom info failed\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out_init_rom_info;
}
ret = ssd_init_label(dev);
if (ret) {
hio_err("%s: init label failed\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out_init_label;
}
ret = ssd_init_workq(dev);
if (ret) {
hio_warn("%s: init workq failed\n", dev->name);
goto out_init_workq;
}
(void)test_and_set_bit(SSD_INIT_WORKQ, &dev->state);
ret = ssd_init_log(dev);
if (ret) {
hio_err("%s: init log failed\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out_init_log;
}
ret = ssd_init_smart(dev);
if (ret) {
hio_err("%s: init info failed\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out_init_smart;
}
init_next1:
ret = ssd_init_hw_info(dev);
if (ret) {
hio_err("%s: init hardware info failed\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out_init_hw_info;
}
/* slave port ? */
if (dev->slave) {
goto init_next2;
}
ret = ssd_init_sensor(dev);
if (ret) {
hio_err("%s: init sensor failed\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out_init_sensor;
}
ret = ssd_init_pl_cap(dev);
if (ret) {
hio_err("%s: int pl_cap failed\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out_init_pl_cap;
}
init_next2:
ret = ssd_check_init_state(dev);
if (ret) {
hio_err("%s: check init state failed\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out_check_init_state;
}
ret = ssd_init_response(dev);
if (ret) {
hio_warn("%s: init resp_msg failed\n", dev->name);
goto out_init_response;
}
ret = ssd_init_cmd(dev);
if (ret) {
hio_warn("%s: init msg failed\n", dev->name);
goto out_init_cmd;
}
ret = ssd_init_dcmd(dev);
if (ret) {
hio_warn("%s: init cmd failed\n", dev->name);
goto out_init_dcmd;
}
ret = ssd_init_irq(dev);
if (ret) {
hio_warn("%s: init irq failed\n", dev->name);
goto out_init_irq;
}
ret = ssd_init_thread(dev);
if (ret) {
hio_warn("%s: init thread failed\n", dev->name);
goto out_init_thread;
}
ret = ssd_init_tag(dev);
if(ret) {
hio_warn("%s: init tags failed\n", dev->name);
goto out_init_tags;
}
/* */
(void)test_and_set_bit(SSD_ONLINE, &dev->state);
ret = ssd_init_queue(dev);
if (ret) {
hio_warn("%s: init queue failed\n", dev->name);
goto out_init_queue;
}
/* slave port ? */
if (dev->slave) {
goto init_next3;
}
ret = ssd_init_ot_protect(dev);
if (ret) {
hio_err("%s: int ot_protect failed\n", dev->name);
/* alarm led */
ssd_set_alarm(dev);
goto out_int_ot_protect;
}
ret = ssd_init_wmode(dev);
if (ret) {
hio_warn("%s: init write mode\n", dev->name);
goto out_init_wmode;
}
/* init routine after hw is ready */
ret = ssd_init_routine(dev);
if (ret) {
hio_warn("%s: init routine\n", dev->name);
goto out_init_routine;
}
ret = ssd_init_chardev(dev);
if (ret) {
hio_warn("%s: register char device failed\n", dev->name);
goto out_init_chardev;
}
init_next3:
ret = ssd_init_blkdev(dev);
if (ret) {
hio_warn("%s: register block device failed\n", dev->name);
goto out_init_blkdev;
}
(void)test_and_set_bit(SSD_INIT_BD, &dev->state);
ret = ssd_register_sysfs(dev);
if (ret) {
hio_warn("%s: register sysfs failed\n", dev->name);
goto out_register_sysfs;
}
dev->save_md = 1;
list_add_tail(&dev->list, &ssd_list);
return 0;
out_register_sysfs:
test_and_clear_bit(SSD_INIT_BD, &dev->state);
ssd_cleanup_blkdev(dev);
out_init_blkdev:
/* slave port ? */
if (!dev->slave) {
ssd_cleanup_chardev(dev);
}
out_init_chardev:
/* slave port ? */
if (!dev->slave) {
ssd_cleanup_routine(dev);
}
out_init_routine:
out_init_wmode:
out_int_ot_protect:
ssd_cleanup_queue(dev);
out_init_queue:
test_and_clear_bit(SSD_ONLINE, &dev->state);
ssd_cleanup_tag(dev);
out_init_tags:
ssd_cleanup_thread(dev);
out_init_thread:
ssd_free_irq(dev);
out_init_irq:
ssd_cleanup_dcmd(dev);
out_init_dcmd:
ssd_cleanup_cmd(dev);
out_init_cmd:
ssd_cleanup_response(dev);
out_init_response:
out_check_init_state:
out_init_pl_cap:
out_init_sensor:
out_init_hw_info:
out_init_smart:
/* slave port ? */
if (!dev->slave) {
ssd_cleanup_log(dev);
}
out_init_log:
/* slave port ? */
if (!dev->slave) {
test_and_clear_bit(SSD_INIT_WORKQ, &dev->state);
ssd_cleanup_workq(dev);
}
out_init_workq:
out_init_label:
out_init_rom_info:
out_init_fw_info:
out_init_protocol_info:
out_check_hw:
#ifdef LINUX_SUSE_OS
iounmap(dev->ctrlp);
#else
pci_iounmap(pdev, dev->ctrlp);
#endif
out_pci_iomap:
release_mem_region(dev->mmio_base, dev->mmio_len);
out_request_mem_region:
out_set_dma_mask:
pci_disable_device(pdev);
out_enable_device:
pci_set_drvdata(pdev, NULL);
out_get_index:
kfree(dev);
out_alloc_dev:
out:
return ret;
}
static void ssd_cleanup_tasklet(void)
{
int i;
for_each_online_cpu(i) {
tasklet_kill(&per_cpu(ssd_tasklet, i));
}
}
static int ssd_init_tasklet(void)
{
int i;
for_each_online_cpu(i) {
INIT_LIST_HEAD(&per_cpu(ssd_doneq, i));
if (finject) {
tasklet_init(&per_cpu(ssd_tasklet, i), __ssd_done_db, 0);
} else {
tasklet_init(&per_cpu(ssd_tasklet, i), __ssd_done, 0);
}
}
return 0;
}
static struct pci_device_id ssd_pci_tbl[] = {
{ 0x10ee, 0x0007, PCI_ANY_ID, PCI_ANY_ID, }, /* g3 */
{ 0x19e5, 0x0007, PCI_ANY_ID, PCI_ANY_ID, }, /* v1 */
//{ 0x19e5, 0x0008, PCI_ANY_ID, PCI_ANY_ID, }, /* v1 sp*/
{ 0x19e5, 0x0009, PCI_ANY_ID, PCI_ANY_ID, }, /* v2 */
{ 0x19e5, 0x000a, PCI_ANY_ID, PCI_ANY_ID, }, /* v2 dp slave*/
{ 0, }
};
MODULE_DEVICE_TABLE(pci, ssd_pci_tbl);
static struct pci_driver ssd_driver = {
.name = MODULE_NAME,
.id_table = ssd_pci_tbl,
.probe = ssd_init_one,
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38))
.remove = __devexit_p(ssd_remove_one),
#else
.remove = ssd_remove_one,
#endif
};
/* notifier block to get a notify on system shutdown/halt/reboot */
static int ssd_notify_reboot(struct notifier_block *nb, unsigned long event, void *buf)
{
struct ssd_device *dev = NULL;
struct ssd_device *n = NULL;
list_for_each_entry_safe(dev, n, &ssd_list, list) {
ssd_gen_swlog(dev, SSD_LOG_POWER_OFF, 0);
(void)ssd_flush(dev);
(void)ssd_save_md(dev);
/* slave port ? */
if (!dev->slave) {
ssd_save_smart(dev);
ssd_stop_workq(dev);
if (dev->reload_fw) {
ssd_reg32_write(dev->ctrlp + SSD_RELOAD_FW_REG, SSD_RELOAD_FW);
}
}
}
return NOTIFY_OK;
}
static struct notifier_block ssd_notifier = {
ssd_notify_reboot, NULL, 0
};
static int __init ssd_init_module(void)
{
int ret = 0;
hio_info("driver version: %s\n", DRIVER_VERSION);
ret = ssd_init_index();
if (ret) {
hio_warn("init index failed\n");
goto out_init_index;
}
ret = ssd_init_proc();
if (ret) {
hio_warn("init proc failed\n");
goto out_init_proc;
}
ret = ssd_init_sysfs();
if (ret) {
hio_warn("init sysfs failed\n");
goto out_init_sysfs;
}
ret = ssd_init_tasklet();
if (ret) {
hio_warn("init tasklet failed\n");
goto out_init_tasklet;
}
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,12))
ssd_class = class_simple_create(THIS_MODULE, SSD_DEV_NAME);
#else
ssd_class = class_create(THIS_MODULE, SSD_DEV_NAME);
#endif
if (IS_ERR(ssd_class)) {
ret = PTR_ERR(ssd_class);
goto out_class_create;
}
if (ssd_cmajor > 0) {
ret = register_chrdev(ssd_cmajor, SSD_CDEV_NAME, &ssd_cfops);
} else {
ret = ssd_cmajor = register_chrdev(ssd_cmajor, SSD_CDEV_NAME, &ssd_cfops);
}
if (ret < 0) {
hio_warn("unable to register chardev major number\n");
goto out_register_chardev;
}
if (ssd_major > 0) {
ret = register_blkdev(ssd_major, SSD_DEV_NAME);
} else {
ret = ssd_major = register_blkdev(ssd_major, SSD_DEV_NAME);
}
if (ret < 0) {
hio_warn("unable to register major number\n");
goto out_register_blkdev;
}
if (ssd_major_sl > 0) {
ret = register_blkdev(ssd_major_sl, SSD_SDEV_NAME);
} else {
ret = ssd_major_sl = register_blkdev(ssd_major_sl, SSD_SDEV_NAME);
}
if (ret < 0) {
hio_warn("unable to register slave major number\n");
goto out_register_blkdev_sl;
}
if (mode < SSD_DRV_MODE_STANDARD || mode > SSD_DRV_MODE_BASE) {
mode = SSD_DRV_MODE_STANDARD;
}
/* for debug */
if (mode != SSD_DRV_MODE_STANDARD) {
ssd_minors = 1;
}
if (int_mode < SSD_INT_LEGACY || int_mode > SSD_INT_MSIX) {
int_mode = SSD_INT_MODE_DEFAULT;
}
if (threaded_irq) {
int_mode = SSD_INT_MSI;
}
if (log_level >= SSD_LOG_NR_LEVEL || log_level < SSD_LOG_LEVEL_INFO) {
log_level = SSD_LOG_LEVEL_ERR;
}
if (wmode < SSD_WMODE_BUFFER || wmode > SSD_WMODE_DEFAULT) {
wmode = SSD_WMODE_DEFAULT;
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
ret = pci_module_init(&ssd_driver);
#else
ret = pci_register_driver(&ssd_driver);
#endif
if (ret) {
hio_warn("pci init failed\n");
goto out_pci_init;
}
ret = register_reboot_notifier(&ssd_notifier);
if (ret) {
hio_warn("register reboot notifier failed\n");
goto out_register_reboot_notifier;
}
return 0;
out_register_reboot_notifier:
out_pci_init:
pci_unregister_driver(&ssd_driver);
unregister_blkdev(ssd_major_sl, SSD_SDEV_NAME);
out_register_blkdev_sl:
unregister_blkdev(ssd_major, SSD_DEV_NAME);
out_register_blkdev:
unregister_chrdev(ssd_cmajor, SSD_CDEV_NAME);
out_register_chardev:
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,12))
class_simple_destroy(ssd_class);
#else
class_destroy(ssd_class);
#endif
out_class_create:
ssd_cleanup_tasklet();
out_init_tasklet:
ssd_cleanup_sysfs();
out_init_sysfs:
ssd_cleanup_proc();
out_init_proc:
ssd_cleanup_index();
out_init_index:
return ret;
}
static void __exit ssd_cleanup_module(void)
{
hio_info("unload driver: %s\n", DRIVER_VERSION);
/* exiting */
ssd_exiting = 1;
unregister_reboot_notifier(&ssd_notifier);
pci_unregister_driver(&ssd_driver);
unregister_blkdev(ssd_major_sl, SSD_SDEV_NAME);
unregister_blkdev(ssd_major, SSD_DEV_NAME);
unregister_chrdev(ssd_cmajor, SSD_CDEV_NAME);
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,12))
class_simple_destroy(ssd_class);
#else
class_destroy(ssd_class);
#endif
ssd_cleanup_tasklet();
ssd_cleanup_sysfs();
ssd_cleanup_proc();
ssd_cleanup_index();
}
int ssd_register_event_notifier(struct block_device *bdev, ssd_event_call event_call)
{
struct ssd_device *dev;
struct timeval tv;
struct ssd_log *le;
uint64_t cur;
int log_nr;
if (!bdev || !event_call || !(bdev->bd_disk)) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
dev->event_call = event_call;
do_gettimeofday(&tv);
cur = tv.tv_sec;
le = (struct ssd_log *)(dev->internal_log.log);
log_nr = dev->internal_log.nr_log;
while (log_nr--) {
if (le->time <= cur && le->time >= dev->uptime) {
(void)dev->event_call(dev->gd, le->le.event, ssd_parse_log(dev, le, 0));
}
le++;
}
return 0;
}
int ssd_unregister_event_notifier(struct block_device *bdev)
{
struct ssd_device *dev;
if (!bdev || !(bdev->bd_disk)) {
return -EINVAL;
}
dev = bdev->bd_disk->private_data;
dev->event_call = NULL;
return 0;
}
EXPORT_SYMBOL(ssd_get_label);
EXPORT_SYMBOL(ssd_get_version);
EXPORT_SYMBOL(ssd_set_otprotect);
EXPORT_SYMBOL(ssd_bm_status);
EXPORT_SYMBOL(ssd_submit_pbio);
EXPORT_SYMBOL(ssd_get_pciaddr);
EXPORT_SYMBOL(ssd_get_temperature);
EXPORT_SYMBOL(ssd_register_event_notifier);
EXPORT_SYMBOL(ssd_unregister_event_notifier);
EXPORT_SYMBOL(ssd_reset);
EXPORT_SYMBOL(ssd_set_wmode);
module_init(ssd_init_module);
module_exit(ssd_cleanup_module);
MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Huawei SSD DEV Team");
MODULE_DESCRIPTION("Huawei SSD driver");
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