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linux/drivers/scsi/nsp32.h
Bart Van Assche 195771c5da scsi: nsp32: Stop using the SCSI pointer 
Move the SCSI status field to private data. Stop setting the .ptr,
.this_residual, .buffer and .buffer_residual SCSI pointer members
since no code in this driver reads these members.

This patch prepares for removal of the SCSI pointer from struct scsi_cmnd.

Link: https://lore.kernel.org/r/20220218195117.25689-38-bvanassche@acm.org
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Masanori Goto <gotom@debian.or.jp>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-22 21:11:06 -05:00

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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Workbit NinjaSCSI-32Bi/UDE PCI/CardBus SCSI Host Bus Adapter driver
* Basic data header
*/
#ifndef _NSP32_H
#define _NSP32_H
//#define NSP32_DEBUG 9
/*
* VENDOR/DEVICE ID
*/
#define PCI_VENDOR_ID_IODATA 0x10fc
#define PCI_VENDOR_ID_WORKBIT 0x1145
#define PCI_DEVICE_ID_NINJASCSI_32BI_CBSC_II 0x0005
#define PCI_DEVICE_ID_NINJASCSI_32BI_KME 0xf007
#define PCI_DEVICE_ID_NINJASCSI_32BI_WBT 0x8007
#define PCI_DEVICE_ID_WORKBIT_STANDARD 0xf010
#define PCI_DEVICE_ID_WORKBIT_DUALEDGE 0xf011
#define PCI_DEVICE_ID_NINJASCSI_32BI_LOGITEC 0xf012
#define PCI_DEVICE_ID_NINJASCSI_32BIB_LOGITEC 0xf013
#define PCI_DEVICE_ID_NINJASCSI_32UDE_MELCO 0xf015
#define PCI_DEVICE_ID_NINJASCSI_32UDE_MELCO_II 0x8009
/*
* MODEL
*/
enum {
MODEL_IODATA = 0,
MODEL_KME = 1,
MODEL_WORKBIT = 2,
MODEL_LOGITEC = 3,
MODEL_PCI_WORKBIT = 4,
MODEL_PCI_LOGITEC = 5,
MODEL_PCI_MELCO = 6,
};
static char * nsp32_model[] = {
"I-O DATA CBSC-II CardBus card",
"KME SCSI CardBus card",
"Workbit duo SCSI CardBus card",
"Logitec CardBus card with external ROM",
"Workbit / I-O DATA PCI card",
"Logitec PCI card with external ROM",
"Melco CardBus/PCI card with external ROM",
};
/*
* SCSI Generic Definitions
*/
#define EXTENDED_SDTR_LEN 0x03
/* Little Endian */
typedef u32 u32_le;
typedef u16 u16_le;
/*
* BASIC Definitions
*/
#ifndef TRUE
# define TRUE 1
#endif
#ifndef FALSE
# define FALSE 0
#endif
#define ASSERT 1
#define NEGATE 0
/*******************/
/* normal register */
/*******************/
/*
* Don't access below register with Double Word:
* +00, +04, +08, +0c, +64, +80, +84, +88, +90, +c4, +c8, +cc, +d0.
*/
#define IRQ_CONTROL 0x00 /* BASE+00, W, W */
#define IRQ_STATUS 0x00 /* BASE+00, W, R */
# define IRQSTATUS_LATCHED_MSG BIT(0)
# define IRQSTATUS_LATCHED_IO BIT(1)
# define IRQSTATUS_LATCHED_CD BIT(2)
# define IRQSTATUS_LATCHED_BUS_FREE BIT(3)
# define IRQSTATUS_RESELECT_OCCUER BIT(4)
# define IRQSTATUS_PHASE_CHANGE_IRQ BIT(5)
# define IRQSTATUS_SCSIRESET_IRQ BIT(6)
# define IRQSTATUS_TIMER_IRQ BIT(7)
# define IRQSTATUS_FIFO_SHLD_IRQ BIT(8)
# define IRQSTATUS_PCI_IRQ BIT(9)
# define IRQSTATUS_BMCNTERR_IRQ BIT(10)
# define IRQSTATUS_AUTOSCSI_IRQ BIT(11)
# define PCI_IRQ_MASK BIT(12)
# define TIMER_IRQ_MASK BIT(13)
# define FIFO_IRQ_MASK BIT(14)
# define SCSI_IRQ_MASK BIT(15)
# define IRQ_CONTROL_ALL_IRQ_MASK (PCI_IRQ_MASK | \
TIMER_IRQ_MASK | \
FIFO_IRQ_MASK | \
SCSI_IRQ_MASK )
# define IRQSTATUS_ANY_IRQ (IRQSTATUS_RESELECT_OCCUER | \
IRQSTATUS_PHASE_CHANGE_IRQ | \
IRQSTATUS_SCSIRESET_IRQ | \
IRQSTATUS_TIMER_IRQ | \
IRQSTATUS_FIFO_SHLD_IRQ | \
IRQSTATUS_PCI_IRQ | \
IRQSTATUS_BMCNTERR_IRQ | \
IRQSTATUS_AUTOSCSI_IRQ )
#define TRANSFER_CONTROL 0x02 /* BASE+02, W, W */
#define TRANSFER_STATUS 0x02 /* BASE+02, W, R */
# define CB_MMIO_MODE BIT(0)
# define CB_IO_MODE BIT(1)
# define BM_TEST BIT(2)
# define BM_TEST_DIR BIT(3)
# define DUAL_EDGE_ENABLE BIT(4)
# define NO_TRANSFER_TO_HOST BIT(5)
# define TRANSFER_GO BIT(7)
# define BLIEND_MODE BIT(8)
# define BM_START BIT(9)
# define ADVANCED_BM_WRITE BIT(10)
# define BM_SINGLE_MODE BIT(11)
# define FIFO_TRUE_FULL BIT(12)
# define FIFO_TRUE_EMPTY BIT(13)
# define ALL_COUNTER_CLR BIT(14)
# define FIFOTEST BIT(15)
#define INDEX_REG 0x04 /* BASE+04, Byte(R/W), Word(R) */
#define TIMER_SET 0x06 /* BASE+06, W, R/W */
# define TIMER_CNT_MASK (0xff)
# define TIMER_STOP BIT(8)
#define DATA_REG_LOW 0x08 /* BASE+08, LowW, R/W */
#define DATA_REG_HI 0x0a /* BASE+0a, Hi-W, R/W */
#define FIFO_REST_CNT 0x0c /* BASE+0c, W, R/W */
# define FIFO_REST_MASK 0x1ff
# define FIFO_EMPTY_SHLD_FLAG BIT(14)
# define FIFO_FULL_SHLD_FLAG BIT(15)
#define SREQ_SMPL_RATE 0x0f /* BASE+0f, B, R/W */
# define SREQSMPLRATE_RATE0 BIT(0)
# define SREQSMPLRATE_RATE1 BIT(1)
# define SAMPLING_ENABLE BIT(2)
# define SMPL_40M (0) /* 40MHz: 0-100ns/period */
# define SMPL_20M (SREQSMPLRATE_RATE0) /* 20MHz: 100-200ns/period */
# define SMPL_10M (SREQSMPLRATE_RATE1) /* 10Mhz: 200- ns/period */
#define SCSI_BUS_CONTROL 0x10 /* BASE+10, B, R/W */
# define BUSCTL_SEL BIT(0)
# define BUSCTL_RST BIT(1)
# define BUSCTL_DATAOUT_ENB BIT(2)
# define BUSCTL_ATN BIT(3)
# define BUSCTL_ACK BIT(4)
# define BUSCTL_BSY BIT(5)
# define AUTODIRECTION BIT(6)
# define ACKENB BIT(7)
#define CLR_COUNTER 0x12 /* BASE+12, B, W */
# define ACK_COUNTER_CLR BIT(0)
# define SREQ_COUNTER_CLR BIT(1)
# define FIFO_HOST_POINTER_CLR BIT(2)
# define FIFO_REST_COUNT_CLR BIT(3)
# define BM_COUNTER_CLR BIT(4)
# define SAVED_ACK_CLR BIT(5)
# define CLRCOUNTER_ALLMASK (ACK_COUNTER_CLR | \
SREQ_COUNTER_CLR | \
FIFO_HOST_POINTER_CLR | \
FIFO_REST_COUNT_CLR | \
BM_COUNTER_CLR | \
SAVED_ACK_CLR )
#define SCSI_BUS_MONITOR 0x12 /* BASE+12, B, R */
# define BUSMON_MSG BIT(0)
# define BUSMON_IO BIT(1)
# define BUSMON_CD BIT(2)
# define BUSMON_BSY BIT(3)
# define BUSMON_ACK BIT(4)
# define BUSMON_REQ BIT(5)
# define BUSMON_SEL BIT(6)
# define BUSMON_ATN BIT(7)
#define COMMAND_DATA 0x14 /* BASE+14, B, R/W */
#define PARITY_CONTROL 0x16 /* BASE+16, B, W */
# define PARITY_CHECK_ENABLE BIT(0)
# define PARITY_ERROR_CLEAR BIT(1)
#define PARITY_STATUS 0x16 /* BASE+16, B, R */
//# define PARITY_CHECK_ENABLE BIT(0)
# define PARITY_ERROR_NORMAL BIT(1)
# define PARITY_ERROR_LSB BIT(1)
# define PARITY_ERROR_MSB BIT(2)
#define RESELECT_ID 0x18 /* BASE+18, B, R */
#define COMMAND_CONTROL 0x18 /* BASE+18, W, W */
# define CLEAR_CDB_FIFO_POINTER BIT(0)
# define AUTO_COMMAND_PHASE BIT(1)
# define AUTOSCSI_START BIT(2)
# define AUTOSCSI_RESTART BIT(3)
# define AUTO_PARAMETER BIT(4)
# define AUTO_ATN BIT(5)
# define AUTO_MSGIN_00_OR_04 BIT(6)
# define AUTO_MSGIN_02 BIT(7)
# define AUTO_MSGIN_03 BIT(8)
#define SET_ARBIT 0x1a /* BASE+1a, B, W */
# define ARBIT_GO BIT(0)
# define ARBIT_CLEAR BIT(1)
#define ARBIT_STATUS 0x1a /* BASE+1a, B, R */
//# define ARBIT_GO BIT(0)
# define ARBIT_WIN BIT(1)
# define ARBIT_FAIL BIT(2)
# define AUTO_PARAMETER_VALID BIT(3)
# define SGT_VALID BIT(4)
#define SYNC_REG 0x1c /* BASE+1c, B, R/W */
#define ACK_WIDTH 0x1d /* BASE+1d, B, R/W */
#define SCSI_DATA_WITH_ACK 0x20 /* BASE+20, B, R/W */
#define SCSI_OUT_LATCH_TARGET_ID 0x22 /* BASE+22, B, W */
#define SCSI_DATA_IN 0x22 /* BASE+22, B, R */
#define SCAM_CONTROL 0x24 /* BASE+24, B, W */
#define SCAM_STATUS 0x24 /* BASE+24, B, R */
# define SCAM_MSG BIT(0)
# define SCAM_IO BIT(1)
# define SCAM_CD BIT(2)
# define SCAM_BSY BIT(3)
# define SCAM_SEL BIT(4)
# define SCAM_XFEROK BIT(5)
#define SCAM_DATA 0x26 /* BASE+26, B, R/W */
# define SD0 BIT(0)
# define SD1 BIT(1)
# define SD2 BIT(2)
# define SD3 BIT(3)
# define SD4 BIT(4)
# define SD5 BIT(5)
# define SD6 BIT(6)
# define SD7 BIT(7)
#define SACK_CNT 0x28 /* BASE+28, DW, R/W */
#define SREQ_CNT 0x2c /* BASE+2c, DW, R/W */
#define FIFO_DATA_LOW 0x30 /* BASE+30, B/W/DW, R/W */
#define FIFO_DATA_HIGH 0x32 /* BASE+32, B/W, R/W */
#define BM_START_ADR 0x34 /* BASE+34, DW, R/W */
#define BM_CNT 0x38 /* BASE+38, DW, R/W */
# define BM_COUNT_MASK 0x0001ffffUL
# define SGTEND BIT(31) /* Last SGT marker */
#define SGT_ADR 0x3c /* BASE+3c, DW, R/W */
#define WAIT_REG 0x40 /* Bi only */
#define SCSI_EXECUTE_PHASE 0x40 /* BASE+40, W, R */
# define COMMAND_PHASE BIT(0)
# define DATA_IN_PHASE BIT(1)
# define DATA_OUT_PHASE BIT(2)
# define MSGOUT_PHASE BIT(3)
# define STATUS_PHASE BIT(4)
# define ILLEGAL_PHASE BIT(5)
# define BUS_FREE_OCCUER BIT(6)
# define MSG_IN_OCCUER BIT(7)
# define MSG_OUT_OCCUER BIT(8)
# define SELECTION_TIMEOUT BIT(9)
# define MSGIN_00_VALID BIT(10)
# define MSGIN_02_VALID BIT(11)
# define MSGIN_03_VALID BIT(12)
# define MSGIN_04_VALID BIT(13)
# define AUTOSCSI_BUSY BIT(15)
#define SCSI_CSB_IN 0x42 /* BASE+42, B, R */
#define SCSI_MSG_OUT 0x44 /* BASE+44, DW, R/W */
# define MSGOUT_COUNT_MASK (BIT(0)|BIT(1))
# define MV_VALID BIT(7)
#define SEL_TIME_OUT 0x48 /* BASE+48, W, R/W */
#define SAVED_SACK_CNT 0x4c /* BASE+4c, DW, R */
#define HTOSDATADELAY 0x50 /* BASE+50, B, R/W */
#define STOHDATADELAY 0x54 /* BASE+54, B, R/W */
#define ACKSUMCHECKRD 0x58 /* BASE+58, W, R */
#define REQSUMCHECKRD 0x5c /* BASE+5c, W, R */
/********************/
/* indexed register */
/********************/
#define CLOCK_DIV 0x00 /* BASE+08, IDX+00, B, R/W */
# define CLOCK_2 BIT(0) /* MCLK/2 */
# define CLOCK_4 BIT(1) /* MCLK/4 */
# define PCICLK BIT(7) /* PCICLK (33MHz) */
#define TERM_PWR_CONTROL 0x01 /* BASE+08, IDX+01, B, R/W */
# define BPWR BIT(0)
# define SENSE BIT(1) /* Read Only */
#define EXT_PORT_DDR 0x02 /* BASE+08, IDX+02, B, R/W */
#define EXT_PORT 0x03 /* BASE+08, IDX+03, B, R/W */
# define LED_ON (0)
# define LED_OFF BIT(0)
#define IRQ_SELECT 0x04 /* BASE+08, IDX+04, W, R/W */
# define IRQSELECT_RESELECT_IRQ BIT(0)
# define IRQSELECT_PHASE_CHANGE_IRQ BIT(1)
# define IRQSELECT_SCSIRESET_IRQ BIT(2)
# define IRQSELECT_TIMER_IRQ BIT(3)
# define IRQSELECT_FIFO_SHLD_IRQ BIT(4)
# define IRQSELECT_TARGET_ABORT_IRQ BIT(5)
# define IRQSELECT_MASTER_ABORT_IRQ BIT(6)
# define IRQSELECT_SERR_IRQ BIT(7)
# define IRQSELECT_PERR_IRQ BIT(8)
# define IRQSELECT_BMCNTERR_IRQ BIT(9)
# define IRQSELECT_AUTO_SCSI_SEQ_IRQ BIT(10)
#define OLD_SCSI_PHASE 0x05 /* BASE+08, IDX+05, B, R */
# define OLD_MSG BIT(0)
# define OLD_IO BIT(1)
# define OLD_CD BIT(2)
# define OLD_BUSY BIT(3)
#define FIFO_FULL_SHLD_COUNT 0x06 /* BASE+08, IDX+06, B, R/W */
#define FIFO_EMPTY_SHLD_COUNT 0x07 /* BASE+08, IDX+07, B, R/W */
#define EXP_ROM_CONTROL 0x08 /* BASE+08, IDX+08, B, R/W */ /* external ROM control */
# define ROM_WRITE_ENB BIT(0)
# define IO_ACCESS_ENB BIT(1)
# define ROM_ADR_CLEAR BIT(2)
#define EXP_ROM_ADR 0x09 /* BASE+08, IDX+09, W, R/W */
#define EXP_ROM_DATA 0x0a /* BASE+08, IDX+0a, B, R/W */
#define CHIP_MODE 0x0b /* BASE+08, IDX+0b, B, R */ /* NinjaSCSI-32Bi only */
# define OEM0 BIT(1) /* OEM select */ /* 00=I-O DATA, 01=KME, 10=Workbit, 11=Ext ROM */
# define OEM1 BIT(2) /* OEM select */
# define OPTB BIT(3) /* KME mode select */
# define OPTC BIT(4) /* KME mode select */
# define OPTD BIT(5) /* KME mode select */
# define OPTE BIT(6) /* KME mode select */
# define OPTF BIT(7) /* Power management */
#define MISC_WR 0x0c /* BASE+08, IDX+0c, W, R/W */
#define MISC_RD 0x0c
# define SCSI_DIRECTION_DETECTOR_SELECT BIT(0)
# define SCSI2_HOST_DIRECTION_VALID BIT(1) /* Read only */
# define HOST2_SCSI_DIRECTION_VALID BIT(2) /* Read only */
# define DELAYED_BMSTART BIT(3)
# define MASTER_TERMINATION_SELECT BIT(4)
# define BMREQ_NEGATE_TIMING_SEL BIT(5)
# define AUTOSEL_TIMING_SEL BIT(6)
# define MISC_MABORT_MASK BIT(7)
# define BMSTOP_CHANGE2_NONDATA_PHASE BIT(8)
#define BM_CYCLE 0x0d /* BASE+08, IDX+0d, B, R/W */
# define BM_CYCLE0 BIT(0)
# define BM_CYCLE1 BIT(1)
# define BM_FRAME_ASSERT_TIMING BIT(2)
# define BM_IRDY_ASSERT_TIMING BIT(3)
# define BM_SINGLE_BUS_MASTER BIT(4)
# define MEMRD_CMD0 BIT(5)
# define SGT_AUTO_PARA_MEMED_CMD BIT(6)
# define MEMRD_CMD1 BIT(7)
#define SREQ_EDGH 0x0e /* BASE+08, IDX+0e, B, W */
# define SREQ_EDGH_SELECT BIT(0)
#define UP_CNT 0x0f /* BASE+08, IDX+0f, B, W */
# define REQCNT_UP BIT(0)
# define ACKCNT_UP BIT(1)
# define BMADR_UP BIT(4)
# define BMCNT_UP BIT(5)
# define SGT_CNT_UP BIT(7)
#define CFG_CMD_STR 0x10 /* BASE+08, IDX+10, W, R */
#define CFG_LATE_CACHE 0x11 /* BASE+08, IDX+11, W, R/W */
#define CFG_BASE_ADR_1 0x12 /* BASE+08, IDX+12, W, R */
#define CFG_BASE_ADR_2 0x13 /* BASE+08, IDX+13, W, R */
#define CFG_INLINE 0x14 /* BASE+08, IDX+14, W, R */
#define SERIAL_ROM_CTL 0x15 /* BASE+08, IDX+15, B, R */
# define SCL BIT(0)
# define ENA BIT(1)
# define SDA BIT(2)
#define FIFO_HST_POINTER 0x16 /* BASE+08, IDX+16, B, R/W */
#define SREQ_DELAY 0x17 /* BASE+08, IDX+17, B, R/W */
#define SACK_DELAY 0x18 /* BASE+08, IDX+18, B, R/W */
#define SREQ_NOISE_CANCEL 0x19 /* BASE+08, IDX+19, B, R/W */
#define SDP_NOISE_CANCEL 0x1a /* BASE+08, IDX+1a, B, R/W */
#define DELAY_TEST 0x1b /* BASE+08, IDX+1b, B, R/W */
#define SD0_NOISE_CANCEL 0x20 /* BASE+08, IDX+20, B, R/W */
#define SD1_NOISE_CANCEL 0x21 /* BASE+08, IDX+21, B, R/W */
#define SD2_NOISE_CANCEL 0x22 /* BASE+08, IDX+22, B, R/W */
#define SD3_NOISE_CANCEL 0x23 /* BASE+08, IDX+23, B, R/W */
#define SD4_NOISE_CANCEL 0x24 /* BASE+08, IDX+24, B, R/W */
#define SD5_NOISE_CANCEL 0x25 /* BASE+08, IDX+25, B, R/W */
#define SD6_NOISE_CANCEL 0x26 /* BASE+08, IDX+26, B, R/W */
#define SD7_NOISE_CANCEL 0x27 /* BASE+08, IDX+27, B, R/W */
/*
* Useful Bus Monitor status combinations.
*/
#define BUSMON_BUS_FREE 0
#define BUSMON_COMMAND ( BUSMON_BSY | BUSMON_CD | BUSMON_REQ )
#define BUSMON_MESSAGE_IN ( BUSMON_BSY | BUSMON_MSG | BUSMON_IO | BUSMON_CD | BUSMON_REQ )
#define BUSMON_MESSAGE_OUT ( BUSMON_BSY | BUSMON_MSG | BUSMON_CD | BUSMON_REQ )
#define BUSMON_DATA_IN ( BUSMON_BSY | BUSMON_IO | BUSMON_REQ )
#define BUSMON_DATA_OUT ( BUSMON_BSY | BUSMON_REQ )
#define BUSMON_STATUS ( BUSMON_BSY | BUSMON_IO | BUSMON_CD | BUSMON_REQ )
#define BUSMON_RESELECT ( BUSMON_IO | BUSMON_SEL)
#define BUSMON_PHASE_MASK ( BUSMON_MSG | BUSMON_IO | BUSMON_CD | BUSMON_SEL)
#define BUSPHASE_COMMAND ( BUSMON_COMMAND & BUSMON_PHASE_MASK )
#define BUSPHASE_MESSAGE_IN ( BUSMON_MESSAGE_IN & BUSMON_PHASE_MASK )
#define BUSPHASE_MESSAGE_OUT ( BUSMON_MESSAGE_OUT & BUSMON_PHASE_MASK )
#define BUSPHASE_DATA_IN ( BUSMON_DATA_IN & BUSMON_PHASE_MASK )
#define BUSPHASE_DATA_OUT ( BUSMON_DATA_OUT & BUSMON_PHASE_MASK )
#define BUSPHASE_STATUS ( BUSMON_STATUS & BUSMON_PHASE_MASK )
#define BUSPHASE_SELECT ( BUSMON_SEL | BUSMON_IO )
/************************************************************************
* structure for DMA/Scatter Gather list
*/
#define NSP32_SG_SIZE SG_ALL
typedef struct _nsp32_sgtable {
/* values must be little endian */
u32_le addr; /* transfer address */
u32_le len; /* transfer length. BIT(31) is for SGT_END mark */
} __attribute__ ((packed)) nsp32_sgtable;
typedef struct _nsp32_sglun {
nsp32_sgtable sgt[NSP32_SG_SIZE+1]; /* SG table */
} __attribute__ ((packed)) nsp32_sglun;
#define NSP32_SG_TABLE_SIZE (sizeof(nsp32_sgtable) * NSP32_SG_SIZE * MAX_TARGET * MAX_LUN)
/* Auto parameter mode memory map. */
/* All values must be little endian. */
typedef struct _nsp32_autoparam {
u8 cdb[4 * 0x10]; /* SCSI Command */
u32_le msgout; /* outgoing messages */
u8 syncreg; /* sync register value */
u8 ackwidth; /* ack width register value */
u8 target_id; /* target/host device id */
u8 sample_reg; /* hazard killer sampling rate */
u16_le command_control; /* command control register */
u16_le transfer_control; /* transfer control register */
u32_le sgt_pointer; /* SG table physical address for DMA */
u32_le dummy[2];
} __attribute__ ((packed)) nsp32_autoparam; /* must be packed struct */
/*
* host data structure
*/
/* message in/out buffer */
#define MSGOUTBUF_MAX 20
#define MSGINBUF_MAX 20
/* flag for trans_method */
#define NSP32_TRANSFER_BUSMASTER BIT(0)
#define NSP32_TRANSFER_MMIO BIT(1) /* Not supported yet */
#define NSP32_TRANSFER_PIO BIT(2) /* Not supported yet */
/*
* structure for connected LUN dynamic data
*
* Note: Currently tagged queuing is disabled, each nsp32_lunt holds
* one SCSI command and one state.
*/
#define DISCPRIV_OK BIT(0) /* DISCPRIV Enable mode */
#define MSGIN03 BIT(1) /* Auto Msg In 03 Flag */
typedef struct _nsp32_lunt {
struct scsi_cmnd *SCpnt; /* Current Handling struct scsi_cmnd */
unsigned long save_datp; /* Save Data Pointer - saved position from initial address */
int msgin03; /* auto msg in 03 flag */
unsigned int sg_num; /* Total number of SG entries */
int cur_entry; /* Current SG entry number */
nsp32_sglun *sglun; /* sg table per lun */
dma_addr_t sglun_paddr; /* sglun physical address */
} nsp32_lunt;
/*
* SCSI TARGET/LUN definition
*/
#define NSP32_HOST_SCSIID 7 /* SCSI initiator is every time defined as 7 */
#define MAX_TARGET 8
#define MAX_LUN 8 /* XXX: In SPI3, max number of LUN is 64. */
typedef struct _nsp32_sync_table {
unsigned char period_num; /* period number */
unsigned char ackwidth; /* ack width designated by period */
unsigned char start_period; /* search range - start period */
unsigned char end_period; /* search range - end period */
unsigned char sample_rate; /* hazard killer parameter */
} nsp32_sync_table;
/*
* structure for target device static data
*/
/* flag for nsp32_target.sync_flag */
#define SDTR_INITIATOR BIT(0) /* sending SDTR from initiator */
#define SDTR_TARGET BIT(1) /* sending SDTR from target */
#define SDTR_DONE BIT(2) /* exchanging SDTR has been processed */
/* syncronous period value for nsp32_target.config_max */
#define FAST5M 0x32
#define FAST10M 0x19
#define ULTRA20M 0x0c
/* flag for nsp32_target.{sync_offset}, period */
#define ASYNC_OFFSET 0 /* asynchronous transfer */
#define SYNC_OFFSET 0xf /* synchronous transfer max offset */
/* syncreg:
bit:07 06 05 04 03 02 01 00
---PERIOD-- ---OFFSET-- */
#define TO_SYNCREG(period, offset) (((period) & 0x0f) << 4 | ((offset) & 0x0f))
struct nsp32_cmd_priv {
enum sam_status status;
};
static inline struct nsp32_cmd_priv *nsp32_priv(struct scsi_cmnd *cmd)
{
return scsi_cmd_priv(cmd);
}
typedef struct _nsp32_target {
unsigned char syncreg; /* value for SYNCREG */
unsigned char ackwidth; /* value for ACKWIDTH */
unsigned char period; /* sync period (0-255) */
unsigned char offset; /* sync offset (0-15) */
int sync_flag; /* SDTR_*, 0 */
int limit_entry; /* max speed limit entry designated
by EEPROM configuration */
unsigned char sample_reg; /* SREQ hazard killer register */
} nsp32_target;
typedef struct _nsp32_hw_data {
int IrqNumber;
int BaseAddress;
int NumAddress;
void __iomem *MmioAddress;
#define NSP32_MMIO_OFFSET 0x0800
unsigned long MmioLength;
struct scsi_cmnd *CurrentSC;
struct pci_dev *Pci;
const struct pci_device_id *pci_devid;
struct Scsi_Host *Host;
spinlock_t Lock;
char info_str[100];
/* allocated memory region */
nsp32_sglun *sg_list; /* sglist virtuxal address */
dma_addr_t sg_paddr; /* physical address of hw_sg_table */
nsp32_autoparam *autoparam; /* auto parameter transfer region */
dma_addr_t auto_paddr; /* physical address of autoparam */
int cur_entry; /* current sgt entry */
/* target/LUN */
nsp32_lunt *cur_lunt; /* Current connected LUN table */
nsp32_lunt lunt[MAX_TARGET][MAX_LUN]; /* All LUN table */
nsp32_target *cur_target; /* Current connected SCSI ID */
nsp32_target target[MAX_TARGET]; /* SCSI ID */
int cur_id; /* Current connected target ID */
int cur_lun; /* Current connected target LUN */
/* behavior setting parameters */
int trans_method; /* transfer method flag */
int resettime; /* Reset time */
int clock; /* clock dividing flag */
nsp32_sync_table *synct; /* sync_table determined by clock */
int syncnum; /* the max number of synct element */
/* message buffer */
unsigned char msgoutbuf[MSGOUTBUF_MAX]; /* msgout buffer */
char msgout_len; /* msgoutbuf length */
unsigned char msginbuf [MSGINBUF_MAX]; /* megin buffer */
char msgin_len; /* msginbuf length */
} nsp32_hw_data;
/*
* TIME definition
*/
#define RESET_HOLD_TIME 10000 /* reset time in us (SCSI-2 says the
minimum is 25us) */
#define SEL_TIMEOUT_TIME 10000 /* 250ms defined in SCSI specification
(25.6us/1unit) */
#define ARBIT_TIMEOUT_TIME 100 /* 100us */
#define REQSACK_TIMEOUT_TIME 10000 /* max wait time for REQ/SACK assertion
or negation, 10000us == 10ms */
#endif /* _NSP32_H */
/* end */
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