| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Linus Torvalds (pre-git) | 1614 | 98.90% | 7 | 43.75% |
| David S. Miller | 7 | 0.43% | 2 | 12.50% |
| Christoph Hellwig | 3 | 0.18% | 1 | 6.25% |
| Tom 'spot' Callaway | 2 | 0.12% | 1 | 6.25% |
| Tushar Dave | 2 | 0.12% | 1 | 6.25% |
| Greg Kroah-Hartman | 1 | 0.06% | 1 | 6.25% |
| Grant C. Likely | 1 | 0.06% | 1 | 6.25% |
| Matthew Wilcox | 1 | 0.06% | 1 | 6.25% |
| Roel Kluin | 1 | 0.06% | 1 | 6.25% |
| Total | 1632 | 16 |
/* SPDX-License-Identifier: GPL-2.0 */ /* qlogicpti.h: Performance Technologies QlogicISP sbus card defines. * * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu) */ #ifndef _QLOGICPTI_H #define _QLOGICPTI_H /* Qlogic/SBUS controller registers. */ #define SBUS_CFG1 0x006UL #define SBUS_CTRL 0x008UL #define SBUS_STAT 0x00aUL #define SBUS_SEMAPHORE 0x00cUL #define CMD_DMA_CTRL 0x022UL #define DATA_DMA_CTRL 0x042UL #define MBOX0 0x080UL #define MBOX1 0x082UL #define MBOX2 0x084UL #define MBOX3 0x086UL #define MBOX4 0x088UL #define MBOX5 0x08aUL #define CPU_CMD 0x214UL #define CPU_ORIDE 0x224UL #define CPU_PCTRL 0x272UL #define CPU_PDIFF 0x276UL #define RISC_PSR 0x420UL #define RISC_MTREG 0x42EUL #define HCCTRL 0x440UL /* SCSI parameters for this driver. */ #define MAX_TARGETS 16 #define MAX_LUNS 8 /* With the qlogic interface, every queue slot can hold a SCSI * command with up to 4 scatter/gather entries. If we need more * than 4 entries, continuation entries can be used that hold * another 7 entries each. Unlike for other drivers, this means * that the maximum number of scatter/gather entries we can * support at any given time is a function of the number of queue * slots available. That is, host->can_queue and host->sg_tablesize * are dynamic and _not_ independent. This all works fine because * requests are queued serially and the scatter/gather limit is * determined for each queue request anew. */ #define QLOGICPTI_REQ_QUEUE_LEN 255 /* must be power of two - 1 */ #define QLOGICPTI_MAX_SG(ql) (4 + (((ql) > 0) ? 7*((ql) - 1) : 0)) /* mailbox command complete status codes */ #define MBOX_COMMAND_COMPLETE 0x4000 #define INVALID_COMMAND 0x4001 #define HOST_INTERFACE_ERROR 0x4002 #define TEST_FAILED 0x4003 #define COMMAND_ERROR 0x4005 #define COMMAND_PARAM_ERROR 0x4006 /* async event status codes */ #define ASYNC_SCSI_BUS_RESET 0x8001 #define SYSTEM_ERROR 0x8002 #define REQUEST_TRANSFER_ERROR 0x8003 #define RESPONSE_TRANSFER_ERROR 0x8004 #define REQUEST_QUEUE_WAKEUP 0x8005 #define EXECUTION_TIMEOUT_RESET 0x8006 /* Am I fucking pedantic or what? */ struct Entry_header { #ifdef __BIG_ENDIAN u8 entry_cnt; u8 entry_type; u8 flags; u8 sys_def_1; #else /* __LITTLE_ENDIAN */ u8 entry_type; u8 entry_cnt; u8 sys_def_1; u8 flags; #endif }; /* entry header type commands */ #define ENTRY_COMMAND 1 #define ENTRY_CONTINUATION 2 #define ENTRY_STATUS 3 #define ENTRY_MARKER 4 #define ENTRY_EXTENDED_COMMAND 5 /* entry header flag definitions */ #define EFLAG_CONTINUATION 1 #define EFLAG_BUSY 2 #define EFLAG_BAD_HEADER 4 #define EFLAG_BAD_PAYLOAD 8 struct dataseg { u32 d_base; u32 d_count; }; struct Command_Entry { struct Entry_header hdr; u32 handle; #ifdef __BIG_ENDIAN u8 target_id; u8 target_lun; #else /* __LITTLE_ENDIAN */ u8 target_lun; u8 target_id; #endif u16 cdb_length; u16 control_flags; u16 rsvd; u16 time_out; u16 segment_cnt; u8 cdb[12]; struct dataseg dataseg[4]; }; /* command entry control flag definitions */ #define CFLAG_NODISC 0x01 #define CFLAG_HEAD_TAG 0x02 #define CFLAG_ORDERED_TAG 0x04 #define CFLAG_SIMPLE_TAG 0x08 #define CFLAG_TAR_RTN 0x10 #define CFLAG_READ 0x20 #define CFLAG_WRITE 0x40 struct Ext_Command_Entry { struct Entry_header hdr; u32 handle; #ifdef __BIG_ENDIAN u8 target_id; u8 target_lun; #else /* __LITTLE_ENDIAN */ u8 target_lun; u8 target_id; #endif u16 cdb_length; u16 control_flags; u16 rsvd; u16 time_out; u16 segment_cnt; u8 cdb[44]; }; struct Continuation_Entry { struct Entry_header hdr; u32 reserved; struct dataseg dataseg[7]; }; struct Marker_Entry { struct Entry_header hdr; u32 reserved; #ifdef __BIG_ENDIAN u8 target_id; u8 target_lun; #else /* __LITTLE_ENDIAN */ u8 target_lun; u8 target_id; #endif #ifdef __BIG_ENDIAN u8 rsvd; u8 modifier; #else /* __LITTLE_ENDIAN */ u8 modifier; u8 rsvd; #endif u8 rsvds[52]; }; /* marker entry modifier definitions */ #define SYNC_DEVICE 0 #define SYNC_TARGET 1 #define SYNC_ALL 2 struct Status_Entry { struct Entry_header hdr; u32 handle; u16 scsi_status; u16 completion_status; u16 state_flags; u16 status_flags; u16 time; u16 req_sense_len; u32 residual; u8 rsvd[8]; u8 req_sense_data[32]; }; /* status entry completion status definitions */ #define CS_COMPLETE 0x0000 #define CS_INCOMPLETE 0x0001 #define CS_DMA_ERROR 0x0002 #define CS_TRANSPORT_ERROR 0x0003 #define CS_RESET_OCCURRED 0x0004 #define CS_ABORTED 0x0005 #define CS_TIMEOUT 0x0006 #define CS_DATA_OVERRUN 0x0007 #define CS_COMMAND_OVERRUN 0x0008 #define CS_STATUS_OVERRUN 0x0009 #define CS_BAD_MESSAGE 0x000a #define CS_NO_MESSAGE_OUT 0x000b #define CS_EXT_ID_FAILED 0x000c #define CS_IDE_MSG_FAILED 0x000d #define CS_ABORT_MSG_FAILED 0x000e #define CS_REJECT_MSG_FAILED 0x000f #define CS_NOP_MSG_FAILED 0x0010 #define CS_PARITY_ERROR_MSG_FAILED 0x0011 #define CS_DEVICE_RESET_MSG_FAILED 0x0012 #define CS_ID_MSG_FAILED 0x0013 #define CS_UNEXP_BUS_FREE 0x0014 #define CS_DATA_UNDERRUN 0x0015 #define CS_BUS_RESET 0x001c /* status entry state flag definitions */ #define SF_GOT_BUS 0x0100 #define SF_GOT_TARGET 0x0200 #define SF_SENT_CDB 0x0400 #define SF_TRANSFERRED_DATA 0x0800 #define SF_GOT_STATUS 0x1000 #define SF_GOT_SENSE 0x2000 /* status entry status flag definitions */ #define STF_DISCONNECT 0x0001 #define STF_SYNCHRONOUS 0x0002 #define STF_PARITY_ERROR 0x0004 #define STF_BUS_RESET 0x0008 #define STF_DEVICE_RESET 0x0010 #define STF_ABORTED 0x0020 #define STF_TIMEOUT 0x0040 #define STF_NEGOTIATION 0x0080 /* mailbox commands */ #define MBOX_NO_OP 0x0000 #define MBOX_LOAD_RAM 0x0001 #define MBOX_EXEC_FIRMWARE 0x0002 #define MBOX_DUMP_RAM 0x0003 #define MBOX_WRITE_RAM_WORD 0x0004 #define MBOX_READ_RAM_WORD 0x0005 #define MBOX_MAILBOX_REG_TEST 0x0006 #define MBOX_VERIFY_CHECKSUM 0x0007 #define MBOX_ABOUT_FIRMWARE 0x0008 #define MBOX_CHECK_FIRMWARE 0x000e #define MBOX_INIT_REQ_QUEUE 0x0010 #define MBOX_INIT_RES_QUEUE 0x0011 #define MBOX_EXECUTE_IOCB 0x0012 #define MBOX_WAKE_UP 0x0013 #define MBOX_STOP_FIRMWARE 0x0014 #define MBOX_ABORT 0x0015 #define MBOX_ABORT_DEVICE 0x0016 #define MBOX_ABORT_TARGET 0x0017 #define MBOX_BUS_RESET 0x0018 #define MBOX_STOP_QUEUE 0x0019 #define MBOX_START_QUEUE 0x001a #define MBOX_SINGLE_STEP_QUEUE 0x001b #define MBOX_ABORT_QUEUE 0x001c #define MBOX_GET_DEV_QUEUE_STATUS 0x001d #define MBOX_GET_FIRMWARE_STATUS 0x001f #define MBOX_GET_INIT_SCSI_ID 0x0020 #define MBOX_GET_SELECT_TIMEOUT 0x0021 #define MBOX_GET_RETRY_COUNT 0x0022 #define MBOX_GET_TAG_AGE_LIMIT 0x0023 #define MBOX_GET_CLOCK_RATE 0x0024 #define MBOX_GET_ACT_NEG_STATE 0x0025 #define MBOX_GET_ASYNC_DATA_SETUP_TIME 0x0026 #define MBOX_GET_SBUS_PARAMS 0x0027 #define MBOX_GET_TARGET_PARAMS 0x0028 #define MBOX_GET_DEV_QUEUE_PARAMS 0x0029 #define MBOX_SET_INIT_SCSI_ID 0x0030 #define MBOX_SET_SELECT_TIMEOUT 0x0031 #define MBOX_SET_RETRY_COUNT 0x0032 #define MBOX_SET_TAG_AGE_LIMIT 0x0033 #define MBOX_SET_CLOCK_RATE 0x0034 #define MBOX_SET_ACTIVE_NEG_STATE 0x0035 #define MBOX_SET_ASYNC_DATA_SETUP_TIME 0x0036 #define MBOX_SET_SBUS_CONTROL_PARAMS 0x0037 #define MBOX_SET_TARGET_PARAMS 0x0038 #define MBOX_SET_DEV_QUEUE_PARAMS 0x0039 struct host_param { u_short initiator_scsi_id; u_short bus_reset_delay; u_short retry_count; u_short retry_delay; u_short async_data_setup_time; u_short req_ack_active_negation; u_short data_line_active_negation; u_short data_dma_burst_enable; u_short command_dma_burst_enable; u_short tag_aging; u_short selection_timeout; u_short max_queue_depth; }; /* * Device Flags: * * Bit Name * --------- * 7 Disconnect Privilege * 6 Parity Checking * 5 Wide Data Transfers * 4 Synchronous Data Transfers * 3 Tagged Queuing * 2 Automatic Request Sense * 1 Stop Queue on Check Condition * 0 Renegotiate on Error */ struct dev_param { u_short device_flags; u_short execution_throttle; u_short synchronous_period; u_short synchronous_offset; u_short device_enable; u_short reserved; /* pad */ }; /* * The result queue can be quite a bit smaller since continuation entries * do not show up there: */ #define RES_QUEUE_LEN 255 /* Must be power of two - 1 */ #define QUEUE_ENTRY_LEN 64 #define NEXT_REQ_PTR(wheee) (((wheee) + 1) & QLOGICPTI_REQ_QUEUE_LEN) #define NEXT_RES_PTR(wheee) (((wheee) + 1) & RES_QUEUE_LEN) #define PREV_REQ_PTR(wheee) (((wheee) - 1) & QLOGICPTI_REQ_QUEUE_LEN) #define PREV_RES_PTR(wheee) (((wheee) - 1) & RES_QUEUE_LEN) struct pti_queue_entry { char __opaque[QUEUE_ENTRY_LEN]; }; struct scsi_cmnd; /* Software state for the driver. */ struct qlogicpti { /* These are the hot elements in the cache, so they come first. */ void __iomem *qregs; /* Adapter registers */ struct pti_queue_entry *res_cpu; /* Ptr to RESPONSE bufs (CPU) */ struct pti_queue_entry *req_cpu; /* Ptr to REQUEST bufs (CPU) */ u_int req_in_ptr; /* index of next request slot */ u_int res_out_ptr; /* index of next result slot */ long send_marker; /* must we send a marker? */ struct platform_device *op; unsigned long __pad; int cmd_count[MAX_TARGETS]; unsigned long tag_ages[MAX_TARGETS]; /* The cmd->handler is only 32-bits, so that things work even on monster * Ex000 sparc64 machines with >4GB of ram we just keep track of the * scsi command pointers here. This is essentially what Matt Jacob does. -DaveM */ struct scsi_cmnd *cmd_slots[QLOGICPTI_REQ_QUEUE_LEN + 1]; /* The rest of the elements are unimportant for performance. */ struct qlogicpti *next; dma_addr_t res_dvma; /* Ptr to RESPONSE bufs (DVMA)*/ dma_addr_t req_dvma; /* Ptr to REQUEST bufs (DVMA) */ u_char fware_majrev, fware_minrev, fware_micrev; struct Scsi_Host *qhost; int qpti_id; int scsi_id; int prom_node; int irq; char differential, ultra, clock; unsigned char bursts; struct host_param host_param; struct dev_param dev_param[MAX_TARGETS]; void __iomem *sreg; #define SREG_TPOWER 0x80 /* State of termpwr */ #define SREG_FUSE 0x40 /* State of on board fuse */ #define SREG_PDISAB 0x20 /* Disable state for power on */ #define SREG_DSENSE 0x10 /* Sense for differential */ #define SREG_IMASK 0x0c /* Interrupt level */ #define SREG_SPMASK 0x03 /* Mask for switch pack */ unsigned char swsreg; unsigned int gotirq : 1, /* this instance got an irq */ is_pti : 1; /* Non-zero if this is a PTI board. */ }; /* How to twiddle them bits... */ /* SBUS config register one. */ #define SBUS_CFG1_EPAR 0x0100 /* Enable parity checking */ #define SBUS_CFG1_FMASK 0x00f0 /* Forth code cycle mask */ #define SBUS_CFG1_BENAB 0x0004 /* Burst dvma enable */ #define SBUS_CFG1_B64 0x0003 /* Enable 64byte bursts */ #define SBUS_CFG1_B32 0x0002 /* Enable 32byte bursts */ #define SBUS_CFG1_B16 0x0001 /* Enable 16byte bursts */ #define SBUS_CFG1_B8 0x0008 /* Enable 8byte bursts */ /* SBUS control register */ #define SBUS_CTRL_EDIRQ 0x0020 /* Enable Data DVMA Interrupts */ #define SBUS_CTRL_ECIRQ 0x0010 /* Enable Command DVMA Interrupts */ #define SBUS_CTRL_ESIRQ 0x0008 /* Enable SCSI Processor Interrupts */ #define SBUS_CTRL_ERIRQ 0x0004 /* Enable RISC Processor Interrupts */ #define SBUS_CTRL_GENAB 0x0002 /* Global Interrupt Enable */ #define SBUS_CTRL_RESET 0x0001 /* Soft Reset */ /* SBUS status register */ #define SBUS_STAT_DINT 0x0020 /* Data DVMA IRQ pending */ #define SBUS_STAT_CINT 0x0010 /* Command DVMA IRQ pending */ #define SBUS_STAT_SINT 0x0008 /* SCSI Processor IRQ pending */ #define SBUS_STAT_RINT 0x0004 /* RISC Processor IRQ pending */ #define SBUS_STAT_GINT 0x0002 /* Global IRQ pending */ /* SBUS semaphore register */ #define SBUS_SEMAPHORE_STAT 0x0002 /* Semaphore status bit */ #define SBUS_SEMAPHORE_LCK 0x0001 /* Semaphore lock bit */ /* DVMA control register */ #define DMA_CTRL_CSUSPEND 0x0010 /* DMA channel suspend */ #define DMA_CTRL_CCLEAR 0x0008 /* DMA channel clear and reset */ #define DMA_CTRL_FCLEAR 0x0004 /* DMA fifo clear */ #define DMA_CTRL_CIRQ 0x0002 /* DMA irq clear */ #define DMA_CTRL_DMASTART 0x0001 /* DMA transfer start */ /* SCSI processor override register */ #define CPU_ORIDE_ETRIG 0x8000 /* External trigger enable */ #define CPU_ORIDE_STEP 0x4000 /* Single step mode enable */ #define CPU_ORIDE_BKPT 0x2000 /* Breakpoint reg enable */ #define CPU_ORIDE_PWRITE 0x1000 /* SCSI pin write enable */ #define CPU_ORIDE_OFORCE 0x0800 /* Force outputs on */ #define CPU_ORIDE_LBACK 0x0400 /* SCSI loopback enable */ #define CPU_ORIDE_PTEST 0x0200 /* Parity test enable */ #define CPU_ORIDE_TENAB 0x0100 /* SCSI pins tristate enable */ #define CPU_ORIDE_TPINS 0x0080 /* SCSI pins enable */ #define CPU_ORIDE_FRESET 0x0008 /* FIFO reset */ #define CPU_ORIDE_CTERM 0x0004 /* Command terminate */ #define CPU_ORIDE_RREG 0x0002 /* Reset SCSI processor regs */ #define CPU_ORIDE_RMOD 0x0001 /* Reset SCSI processor module */ /* SCSI processor commands */ #define CPU_CMD_BRESET 0x300b /* Reset SCSI bus */ /* SCSI processor pin control register */ #define CPU_PCTRL_PVALID 0x8000 /* Phase bits are valid */ #define CPU_PCTRL_PHI 0x0400 /* Parity bit high */ #define CPU_PCTRL_PLO 0x0200 /* Parity bit low */ #define CPU_PCTRL_REQ 0x0100 /* REQ bus signal */ #define CPU_PCTRL_ACK 0x0080 /* ACK bus signal */ #define CPU_PCTRL_RST 0x0040 /* RST bus signal */ #define CPU_PCTRL_BSY 0x0020 /* BSY bus signal */ #define CPU_PCTRL_SEL 0x0010 /* SEL bus signal */ #define CPU_PCTRL_ATN 0x0008 /* ATN bus signal */ #define CPU_PCTRL_MSG 0x0004 /* MSG bus signal */ #define CPU_PCTRL_CD 0x0002 /* CD bus signal */ #define CPU_PCTRL_IO 0x0001 /* IO bus signal */ /* SCSI processor differential pins register */ #define CPU_PDIFF_SENSE 0x0200 /* Differential sense */ #define CPU_PDIFF_MODE 0x0100 /* Differential mode */ #define CPU_PDIFF_OENAB 0x0080 /* Outputs enable */ #define CPU_PDIFF_PMASK 0x007c /* Differential control pins */ #define CPU_PDIFF_TGT 0x0002 /* Target mode enable */ #define CPU_PDIFF_INIT 0x0001 /* Initiator mode enable */ /* RISC processor status register */ #define RISC_PSR_FTRUE 0x8000 /* Force true */ #define RISC_PSR_LCD 0x4000 /* Loop counter shows done status */ #define RISC_PSR_RIRQ 0x2000 /* RISC irq status */ #define RISC_PSR_TOFLOW 0x1000 /* Timer overflow (rollover) */ #define RISC_PSR_AOFLOW 0x0800 /* Arithmetic overflow */ #define RISC_PSR_AMSB 0x0400 /* Arithmetic big endian */ #define RISC_PSR_ACARRY 0x0200 /* Arithmetic carry */ #define RISC_PSR_AZERO 0x0100 /* Arithmetic zero */ #define RISC_PSR_ULTRA 0x0020 /* Ultra mode */ #define RISC_PSR_DIRQ 0x0010 /* DVMA interrupt */ #define RISC_PSR_SIRQ 0x0008 /* SCSI processor interrupt */ #define RISC_PSR_HIRQ 0x0004 /* Host interrupt */ #define RISC_PSR_IPEND 0x0002 /* Interrupt pending */ #define RISC_PSR_FFALSE 0x0001 /* Force false */ /* RISC processor memory timing register */ #define RISC_MTREG_P1DFLT 0x1200 /* Default read/write timing, pg1 */ #define RISC_MTREG_P0DFLT 0x0012 /* Default read/write timing, pg0 */ #define RISC_MTREG_P1ULTRA 0x2300 /* Ultra-mode rw timing, pg1 */ #define RISC_MTREG_P0ULTRA 0x0023 /* Ultra-mode rw timing, pg0 */ /* Host command/ctrl register */ #define HCCTRL_NOP 0x0000 /* CMD: No operation */ #define HCCTRL_RESET 0x1000 /* CMD: Reset RISC cpu */ #define HCCTRL_PAUSE 0x2000 /* CMD: Pause RISC cpu */ #define HCCTRL_REL 0x3000 /* CMD: Release paused RISC cpu */ #define HCCTRL_STEP 0x4000 /* CMD: Single step RISC cpu */ #define HCCTRL_SHIRQ 0x5000 /* CMD: Set host irq */ #define HCCTRL_CHIRQ 0x6000 /* CMD: Clear host irq */ #define HCCTRL_CRIRQ 0x7000 /* CMD: Clear RISC cpu irq */ #define HCCTRL_BKPT 0x8000 /* CMD: Breakpoint enables change */ #define HCCTRL_TMODE 0xf000 /* CMD: Enable test mode */ #define HCCTRL_HIRQ 0x0080 /* Host IRQ pending */ #define HCCTRL_RRIP 0x0040 /* RISC cpu reset in happening now */ #define HCCTRL_RPAUSED 0x0020 /* RISC cpu is paused now */ #define HCCTRL_EBENAB 0x0010 /* External breakpoint enable */ #define HCCTRL_B1ENAB 0x0008 /* Breakpoint 1 enable */ #define HCCTRL_B0ENAB 0x0004 /* Breakpoint 0 enable */ /* For our interrupt engine. */ #define for_each_qlogicpti(qp) \ for((qp) = qptichain; (qp); (qp) = (qp)->next) #endif /* !(_QLOGICPTI_H) */
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