diff options
Diffstat (limited to 'drivers/scsi/qlogicisp.c')
| -rw-r--r-- | drivers/scsi/qlogicisp.c | 1934 |
1 files changed, 0 insertions, 1934 deletions
diff --git a/drivers/scsi/qlogicisp.c b/drivers/scsi/qlogicisp.c deleted file mode 100644 index 6c9266b8ffd..00000000000 --- a/drivers/scsi/qlogicisp.c +++ /dev/null @@ -1,1934 +0,0 @@ -/* - * QLogic ISP1020 Intelligent SCSI Processor Driver (PCI) - * Written by Erik H. Moe, ehm@cris.com - * Copyright 1995, Erik H. Moe - * Copyright 1996, 1997 Michael A. Griffith <grif@acm.org> - * Copyright 2000, Jayson C. Vantuyl <vantuyl@csc.smsu.edu> - * and Bryon W. Roche <bryon@csc.smsu.edu> - * - * 64-bit addressing added by Kanoj Sarcar <kanoj@sgi.com> - * and Leo Dagum <dagum@sgi.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * This program is distributed in the hope that 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. - */ - -#include <linux/blkdev.h> -#include <linux/config.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/ioport.h> -#include <linux/sched.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/unistd.h> -#include <linux/spinlock.h> -#include <linux/interrupt.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/byteorder.h> -#include "scsi.h" -#include <scsi/scsi_host.h> - -/* - * 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 QLOGICISP_REQ_QUEUE_LEN 63 /* must be power of two - 1 */ -#define QLOGICISP_MAX_SG(ql) (4 + ((ql) > 0) ? 7*((ql) - 1) : 0) - -/* Configuration section *****************************************************/ - -/* Set the following macro to 1 to reload the ISP1020's firmware. This is - the latest firmware provided by QLogic. This may be an earlier/later - revision than supplied by your board. */ - -#define RELOAD_FIRMWARE 1 - -/* Set the following macro to 1 to reload the ISP1020's defaults from nvram. - If you are not sure of your settings, leave this alone, the driver will - use a set of 'safe' defaults */ - -#define USE_NVRAM_DEFAULTS 0 - -/* Macros used for debugging */ - -#define DEBUG_ISP1020 0 -#define DEBUG_ISP1020_INTR 0 -#define DEBUG_ISP1020_SETUP 0 -#define TRACE_ISP 0 - -#define DEFAULT_LOOP_COUNT 1000000 - -/* End Configuration section *************************************************/ - -#include <linux/module.h> - -#if TRACE_ISP - -# define TRACE_BUF_LEN (32*1024) - -struct { - u_long next; - struct { - u_long time; - u_int index; - u_int addr; - u_char * name; - } buf[TRACE_BUF_LEN]; -} trace; - -#define TRACE(w, i, a) \ -{ \ - unsigned long flags; \ - \ - trace.buf[trace.next].name = (w); \ - trace.buf[trace.next].time = jiffies; \ - trace.buf[trace.next].index = (i); \ - trace.buf[trace.next].addr = (long) (a); \ - trace.next = (trace.next + 1) & (TRACE_BUF_LEN - 1); \ -} - -#else -# define TRACE(w, i, a) -#endif - -#if DEBUG_ISP1020 -#define ENTER(x) printk("isp1020 : entering %s()\n", x); -#define LEAVE(x) printk("isp1020 : leaving %s()\n", x); -#define DEBUG(x) x -#else -#define ENTER(x) -#define LEAVE(x) -#define DEBUG(x) -#endif /* DEBUG_ISP1020 */ - -#if DEBUG_ISP1020_INTR -#define ENTER_INTR(x) printk("isp1020 : entering %s()\n", x); -#define LEAVE_INTR(x) printk("isp1020 : leaving %s()\n", x); -#define DEBUG_INTR(x) x -#else -#define ENTER_INTR(x) -#define LEAVE_INTR(x) -#define DEBUG_INTR(x) -#endif /* DEBUG ISP1020_INTR */ - -#define ISP1020_REV_ID 1 - -#define MAX_TARGETS 16 -#define MAX_LUNS 8 - -/* host configuration and control registers */ -#define HOST_HCCR 0xc0 /* host command and control */ - -/* pci bus interface registers */ -#define PCI_ID_LOW 0x00 /* vendor id */ -#define PCI_ID_HIGH 0x02 /* device id */ -#define ISP_CFG0 0x04 /* configuration register #0 */ -#define ISP_CFG0_HWMSK 0x000f /* Hardware revision mask */ -#define ISP_CFG0_1020 0x0001 /* ISP1020 */ -#define ISP_CFG0_1020A 0x0002 /* ISP1020A */ -#define ISP_CFG0_1040 0x0003 /* ISP1040 */ -#define ISP_CFG0_1040A 0x0004 /* ISP1040A */ -#define ISP_CFG0_1040B 0x0005 /* ISP1040B */ -#define ISP_CFG0_1040C 0x0006 /* ISP1040C */ -#define ISP_CFG1 0x06 /* configuration register #1 */ -#define ISP_CFG1_F128 0x0040 /* 128-byte FIFO threshold */ -#define ISP_CFG1_F64 0x0030 /* 128-byte FIFO threshold */ -#define ISP_CFG1_F32 0x0020 /* 128-byte FIFO threshold */ -#define ISP_CFG1_F16 0x0010 /* 128-byte FIFO threshold */ -#define ISP_CFG1_BENAB 0x0004 /* Global Bus burst enable */ -#define ISP_CFG1_SXP 0x0001 /* SXP register select */ -#define PCI_INTF_CTL 0x08 /* pci interface control */ -#define PCI_INTF_STS 0x0a /* pci interface status */ -#define PCI_SEMAPHORE 0x0c /* pci semaphore */ -#define PCI_NVRAM 0x0e /* pci nvram interface */ -#define CDMA_CONF 0x20 /* Command DMA Config */ -#define DDMA_CONF 0x40 /* Data DMA Config */ -#define DMA_CONF_SENAB 0x0008 /* SXP to DMA Data enable */ -#define DMA_CONF_RIRQ 0x0004 /* RISC interrupt enable */ -#define DMA_CONF_BENAB 0x0002 /* Bus burst enable */ -#define DMA_CONF_DIR 0x0001 /* DMA direction (0=fifo->host 1=host->fifo) */ - -/* mailbox registers */ -#define MBOX0 0x70 /* mailbox 0 */ -#define MBOX1 0x72 /* mailbox 1 */ -#define MBOX2 0x74 /* mailbox 2 */ -#define MBOX3 0x76 /* mailbox 3 */ -#define MBOX4 0x78 /* mailbox 4 */ -#define MBOX5 0x7a /* mailbox 5 */ -#define MBOX6 0x7c /* mailbox 6 */ -#define MBOX7 0x7e /* mailbox 7 */ - -/* 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 - -#ifdef CONFIG_QL_ISP_A64 -#define IOCB_SEGS 2 -#define CONTINUATION_SEGS 5 -#define MAX_CONTINUATION_ENTRIES 254 -#else -#define IOCB_SEGS 4 -#define CONTINUATION_SEGS 7 -#endif /* CONFIG_QL_ISP_A64 */ - -struct Entry_header { - u_char entry_type; - u_char entry_cnt; - u_char sys_def_1; - u_char flags; -}; - -/* entry header type commands */ -#ifdef CONFIG_QL_ISP_A64 -#define ENTRY_COMMAND 9 -#define ENTRY_CONTINUATION 0xa -#else -#define ENTRY_COMMAND 1 -#define ENTRY_CONTINUATION 2 -#endif /* CONFIG_QL_ISP_A64 */ - -#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 { - u_int d_base; -#ifdef CONFIG_QL_ISP_A64 - u_int d_base_hi; -#endif - u_int d_count; -}; - -struct Command_Entry { - struct Entry_header hdr; - u_int handle; - u_char target_lun; - u_char target_id; - u_short cdb_length; - u_short control_flags; - u_short rsvd; - u_short time_out; - u_short segment_cnt; - u_char cdb[12]; -#ifdef CONFIG_QL_ISP_A64 - u_int rsvd1; - u_int rsvd2; -#endif - struct dataseg dataseg[IOCB_SEGS]; -}; - -/* 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; - u_int handle; - u_char target_lun; - u_char target_id; - u_short cdb_length; - u_short control_flags; - u_short rsvd; - u_short time_out; - u_short segment_cnt; - u_char cdb[44]; -}; - -struct Continuation_Entry { - struct Entry_header hdr; -#ifndef CONFIG_QL_ISP_A64 - u_int reserved; -#endif - struct dataseg dataseg[CONTINUATION_SEGS]; -}; - -struct Marker_Entry { - struct Entry_header hdr; - u_int reserved; - u_char target_lun; - u_char target_id; - u_char modifier; - u_char rsvd; - u_char 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; - u_int handle; - u_short scsi_status; - u_short completion_status; - u_short state_flags; - u_short status_flags; - u_short time; - u_short req_sense_len; - u_int residual; - u_char rsvd[8]; - u_char 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 - -/* 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 - -/* interface control commands */ -#define ISP_RESET 0x0001 -#define ISP_EN_INT 0x0002 -#define ISP_EN_RISC 0x0004 - -/* host control commands */ -#define HCCR_NOP 0x0000 -#define HCCR_RESET 0x1000 -#define HCCR_PAUSE 0x2000 -#define HCCR_RELEASE 0x3000 -#define HCCR_SINGLE_STEP 0x4000 -#define HCCR_SET_HOST_INTR 0x5000 -#define HCCR_CLEAR_HOST_INTR 0x6000 -#define HCCR_CLEAR_RISC_INTR 0x7000 -#define HCCR_BP_ENABLE 0x8000 -#define HCCR_BIOS_DISABLE 0x9000 -#define HCCR_TEST_MODE 0xf000 - -#define RISC_BUSY 0x0004 - -/* 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_PCI_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_PCI_CONTROL_PARAMS 0x0037 -#define MBOX_SET_TARGET_PARAMS 0x0038 -#define MBOX_SET_DEV_QUEUE_PARAMS 0x0039 -#define MBOX_RETURN_BIOS_BLOCK_ADDR 0x0040 -#define MBOX_WRITE_FOUR_RAM_WORDS 0x0041 -#define MBOX_EXEC_BIOS_IOCB 0x0042 - -#ifdef CONFIG_QL_ISP_A64 -#define MBOX_CMD_INIT_REQUEST_QUEUE_64 0x0052 -#define MBOX_CMD_INIT_RESPONSE_QUEUE_64 0x0053 -#endif /* CONFIG_QL_ISP_A64 */ - -#include "qlogicisp_asm.c" - -#define PACKB(a, b) (((a)<<4)|(b)) - -static const u_char mbox_param[] = { - PACKB(1, 1), /* MBOX_NO_OP */ - PACKB(5, 5), /* MBOX_LOAD_RAM */ - PACKB(2, 0), /* MBOX_EXEC_FIRMWARE */ - PACKB(5, 5), /* MBOX_DUMP_RAM */ - PACKB(3, 3), /* MBOX_WRITE_RAM_WORD */ - PACKB(2, 3), /* MBOX_READ_RAM_WORD */ - PACKB(6, 6), /* MBOX_MAILBOX_REG_TEST */ - PACKB(2, 3), /* MBOX_VERIFY_CHECKSUM */ - PACKB(1, 3), /* MBOX_ABOUT_FIRMWARE */ - PACKB(0, 0), /* 0x0009 */ - PACKB(0, 0), /* 0x000a */ - PACKB(0, 0), /* 0x000b */ - PACKB(0, 0), /* 0x000c */ - PACKB(0, 0), /* 0x000d */ - PACKB(1, 2), /* MBOX_CHECK_FIRMWARE */ - PACKB(0, 0), /* 0x000f */ - PACKB(5, 5), /* MBOX_INIT_REQ_QUEUE */ - PACKB(6, 6), /* MBOX_INIT_RES_QUEUE */ - PACKB(4, 4), /* MBOX_EXECUTE_IOCB */ - PACKB(2, 2), /* MBOX_WAKE_UP */ - PACKB(1, 6), /* MBOX_STOP_FIRMWARE */ - PACKB(4, 4), /* MBOX_ABORT */ - PACKB(2, 2), /* MBOX_ABORT_DEVICE */ - PACKB(3, 3), /* MBOX_ABORT_TARGET */ - PACKB(2, 2), /* MBOX_BUS_RESET */ - PACKB(2, 3), /* MBOX_STOP_QUEUE */ - PACKB(2, 3), /* MBOX_START_QUEUE */ - PACKB(2, 3), /* MBOX_SINGLE_STEP_QUEUE */ - PACKB(2, 3), /* MBOX_ABORT_QUEUE */ - PACKB(2, 4), /* MBOX_GET_DEV_QUEUE_STATUS */ - PACKB(0, 0), /* 0x001e */ - PACKB(1, 3), /* MBOX_GET_FIRMWARE_STATUS */ - PACKB(1, 2), /* MBOX_GET_INIT_SCSI_ID */ - PACKB(1, 2), /* MBOX_GET_SELECT_TIMEOUT */ - PACKB(1, 3), /* MBOX_GET_RETRY_COUNT */ - PACKB(1, 2), /* MBOX_GET_TAG_AGE_LIMIT */ - PACKB(1, 2), /* MBOX_GET_CLOCK_RATE */ - PACKB(1, 2), /* MBOX_GET_ACT_NEG_STATE */ - PACKB(1, 2), /* MBOX_GET_ASYNC_DATA_SETUP_TIME */ - PACKB(1, 3), /* MBOX_GET_PCI_PARAMS */ - PACKB(2, 4), /* MBOX_GET_TARGET_PARAMS */ - PACKB(2, 4), /* MBOX_GET_DEV_QUEUE_PARAMS */ - PACKB(0, 0), /* 0x002a */ - PACKB(0, 0), /* 0x002b */ - PACKB(0, 0), /* 0x002c */ - PACKB(0, 0), /* 0x002d */ - PACKB(0, 0), /* 0x002e */ - PACKB(0, 0), /* 0x002f */ - PACKB(2, 2), /* MBOX_SET_INIT_SCSI_ID */ - PACKB(2, 2), /* MBOX_SET_SELECT_TIMEOUT */ - PACKB(3, 3), /* MBOX_SET_RETRY_COUNT */ - PACKB(2, 2), /* MBOX_SET_TAG_AGE_LIMIT */ - PACKB(2, 2), /* MBOX_SET_CLOCK_RATE */ - PACKB(2, 2), /* MBOX_SET_ACTIVE_NEG_STATE */ - PACKB(2, 2), /* MBOX_SET_ASYNC_DATA_SETUP_TIME */ - PACKB(3, 3), /* MBOX_SET_PCI_CONTROL_PARAMS */ - PACKB(4, 4), /* MBOX_SET_TARGET_PARAMS */ - PACKB(4, 4), /* MBOX_SET_DEV_QUEUE_PARAMS */ - PACKB(0, 0), /* 0x003a */ - PACKB(0, 0), /* 0x003b */ - PACKB(0, 0), /* 0x003c */ - PACKB(0, 0), /* 0x003d */ - PACKB(0, 0), /* 0x003e */ - PACKB(0, 0), /* 0x003f */ - PACKB(1, 2), /* MBOX_RETURN_BIOS_BLOCK_ADDR */ - PACKB(6, 1), /* MBOX_WRITE_FOUR_RAM_WORDS */ - PACKB(2, 3) /* MBOX_EXEC_BIOS_IOCB */ -#ifdef CONFIG_QL_ISP_A64 - ,PACKB(0, 0), /* 0x0043 */ - PACKB(0, 0), /* 0x0044 */ - PACKB(0, 0), /* 0x0045 */ - PACKB(0, 0), /* 0x0046 */ - PACKB(0, 0), /* 0x0047 */ - PACKB(0, 0), /* 0x0048 */ - PACKB(0, 0), /* 0x0049 */ - PACKB(0, 0), /* 0x004a */ - PACKB(0, 0), /* 0x004b */ - PACKB(0, 0), /* 0x004c */ - PACKB(0, 0), /* 0x004d */ - PACKB(0, 0), /* 0x004e */ - PACKB(0, 0), /* 0x004f */ - PACKB(0, 0), /* 0x0050 */ - PACKB(0, 0), /* 0x0051 */ - PACKB(8, 8), /* MBOX_CMD_INIT_REQUEST_QUEUE_64 (0x0052) */ - PACKB(8, 8) /* MBOX_CMD_INIT_RESPONSE_QUEUE_64 (0x0053) */ -#endif /* CONFIG_QL_ISP_A64 */ -}; - -#define MAX_MBOX_COMMAND (sizeof(mbox_param)/sizeof(u_short)) - -struct host_param { - u_short fifo_threshold; - u_short host_adapter_enable; - 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 ((QLOGICISP_REQ_QUEUE_LEN + 1) / 8 - 1) -#define QUEUE_ENTRY_LEN 64 -#define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN) - -struct isp_queue_entry { - char __opaque[QUEUE_ENTRY_LEN]; -}; - -struct isp1020_hostdata { - void __iomem *memaddr; - u_char revision; - struct host_param host_param; - struct dev_param dev_param[MAX_TARGETS]; - struct pci_dev *pci_dev; - - struct isp_queue_entry *res_cpu; /* CPU-side address of response queue. */ - struct isp_queue_entry *req_cpu; /* CPU-size address of request queue. */ - - /* result and request queues (shared with isp1020): */ - u_int req_in_ptr; /* index of next request slot */ - u_int res_out_ptr; /* index of next result slot */ - - /* this is here so the queues are nicely aligned */ - long send_marker; /* do we need to send a marker? */ - - /* The cmd->handle has a fixed size, and is only 32-bits. We - * need to take care to handle 64-bit systems correctly thus what - * we actually place in cmd->handle is an index to the following - * table. Kudos to Matt Jacob for the technique. -DaveM - */ - Scsi_Cmnd *cmd_slots[QLOGICISP_REQ_QUEUE_LEN + 1]; - - dma_addr_t res_dma; /* PCI side view of response queue */ - dma_addr_t req_dma; /* PCI side view of request queue */ -}; - -/* queue length's _must_ be power of two: */ -#define QUEUE_DEPTH(in, out, ql) ((in - out) & (ql)) -#define REQ_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, \ - QLOGICISP_REQ_QUEUE_LEN) -#define RES_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, RES_QUEUE_LEN) - -static void isp1020_enable_irqs(struct Scsi_Host *); -static void isp1020_disable_irqs(struct Scsi_Host *); -static int isp1020_init(struct Scsi_Host *); -static int isp1020_reset_hardware(struct Scsi_Host *); -static int isp1020_set_defaults(struct Scsi_Host *); -static int isp1020_load_parameters(struct Scsi_Host *); -static int isp1020_mbox_command(struct Scsi_Host *, u_short []); -static int isp1020_return_status(struct Status_Entry *); -static void isp1020_intr_handler(int, void *, struct pt_regs *); -static irqreturn_t do_isp1020_intr_handler(int, void *, struct pt_regs *); - -#if USE_NVRAM_DEFAULTS -static int isp1020_get_defaults(struct Scsi_Host *); -static int isp1020_verify_nvram(struct Scsi_Host *); -static u_short isp1020_read_nvram_word(struct Scsi_Host *, u_short); -#endif - -#if DEBUG_ISP1020 -static void isp1020_print_scsi_cmd(Scsi_Cmnd *); -#endif -#if DEBUG_ISP1020_INTR -static void isp1020_print_status_entry(struct Status_Entry *); -#endif - -/* memaddr should be used to determine if memmapped port i/o is being used - * non-null memaddr == mmap'd - * JV 7-Jan-2000 - */ -static inline u_short isp_inw(struct Scsi_Host *host, long offset) -{ - struct isp1020_hostdata *h = (struct isp1020_hostdata *)host->hostdata; - if (h->memaddr) - return readw(h->memaddr + offset); - else - return inw(host->io_port + offset); -} - -static inline void isp_outw(u_short val, struct Scsi_Host *host, long offset) -{ - struct isp1020_hostdata *h = (struct isp1020_hostdata *)host->hostdata; - if (h->memaddr) - writew(val, h->memaddr + offset); - else - outw(val, host->io_port + offset); -} - -static inline void isp1020_enable_irqs(struct Scsi_Host *host) -{ - isp_outw(ISP_EN_INT|ISP_EN_RISC, host, PCI_INTF_CTL); -} - - -static inline void isp1020_disable_irqs(struct Scsi_Host *host) -{ - isp_outw(0x0, host, PCI_INTF_CTL); -} - - -static int isp1020_detect(Scsi_Host_Template *tmpt) -{ - int hosts = 0; - struct Scsi_Host *host; - struct isp1020_hostdata *hostdata; - struct pci_dev *pdev = NULL; - - ENTER("isp1020_detect"); - - tmpt->proc_name = "isp1020"; - - while ((pdev = pci_find_device(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020, pdev))) - { - if (pci_enable_device(pdev)) - continue; - - host = scsi_register(tmpt, sizeof(struct isp1020_hostdata)); - if (!host) - continue; - - hostdata = (struct isp1020_hostdata *) host->hostdata; - - memset(hostdata, 0, sizeof(struct isp1020_hostdata)); - - hostdata->pci_dev = pdev; - - if (isp1020_init(host)) - goto fail_and_unregister; - - if (isp1020_reset_hardware(host) -#if USE_NVRAM_DEFAULTS - || isp1020_get_defaults(host) -#else - || isp1020_set_defaults(host) -#endif /* USE_NVRAM_DEFAULTS */ - || isp1020_load_parameters(host)) { - goto fail_uninit; - } - - host->this_id = hostdata->host_param.initiator_scsi_id; - host->max_sectors = 64; - - if (request_irq(host->irq, do_isp1020_intr_handler, SA_INTERRUPT | SA_SHIRQ, - "qlogicisp", host)) - { - printk("qlogicisp : interrupt %d already in use\n", - host->irq); - goto fail_uninit; - } - - isp_outw(0x0, host, PCI_SEMAPHORE); - isp_outw(HCCR_CLEAR_RISC_INTR, host, HOST_HCCR); - isp1020_enable_irqs(host); - - hosts++; - continue; - - fail_uninit: - iounmap(hostdata->memaddr); - release_region(host->io_port, 0xff); - fail_and_unregister: - if (hostdata->res_cpu) - pci_free_consistent(hostdata->pci_dev, - QSIZE(RES_QUEUE_LEN), - hostdata->res_cpu, - hostdata->res_dma); - if (hostdata->req_cpu) - pci_free_consistent(hostdata->pci_dev, - QSIZE(QLOGICISP_REQ_QUEUE_LEN), - hostdata->req_cpu, - hostdata->req_dma); - scsi_unregister(host); - } - - LEAVE("isp1020_detect"); - - return hosts; -} - - -static int isp1020_release(struct Scsi_Host *host) -{ - struct isp1020_hostdata *hostdata; - - ENTER("isp1020_release"); - - hostdata = (struct isp1020_hostdata *) host->hostdata; - - isp_outw(0x0, host, PCI_INTF_CTL); - free_irq(host->irq, host); - - iounmap(hostdata->memaddr); - - release_region(host->io_port, 0xff); - - LEAVE("isp1020_release"); - - return 0; -} - - -static const char *isp1020_info(struct Scsi_Host *host) -{ - static char buf[80]; - struct isp1020_hostdata *hostdata; - - ENTER("isp1020_info"); - - hostdata = (struct isp1020_hostdata *) host->hostdata; - sprintf(buf, - "QLogic ISP1020 SCSI on PCI bus %02x device %02x irq %d %s base 0x%lx", - hostdata->pci_dev->bus->number, hostdata->pci_dev->devfn, host->irq, - (hostdata->memaddr ? "MEM" : "I/O"), - (hostdata->memaddr ? (unsigned long)hostdata->memaddr : host->io_port)); - - LEAVE("isp1020_info"); - - return buf; -} - - -/* - * The middle SCSI layer ensures that queuecommand never gets invoked - * concurrently with itself or the interrupt handler (though the - * interrupt handler may call this routine as part of - * request-completion handling). - */ -static int isp1020_queuecommand(Scsi_Cmnd *Cmnd, void (*done)(Scsi_Cmnd *)) -{ - int i, n, num_free; - u_int in_ptr, out_ptr; - struct dataseg * ds; - struct scatterlist *sg; - struct Command_Entry *cmd; - struct Continuation_Entry *cont; - struct Scsi_Host *host; - struct isp1020_hostdata *hostdata; - dma_addr_t dma_addr; - - ENTER("isp1020_queuecommand"); - - host = Cmnd->device->host; - hostdata = (struct isp1020_hostdata *) host->hostdata; - Cmnd->scsi_done = done; - - DEBUG(isp1020_print_scsi_cmd(Cmnd)); - - out_ptr = isp_inw(host, + MBOX4); - in_ptr = hostdata->req_in_ptr; - - DEBUG(printk("qlogicisp : request queue depth %d\n", - REQ_QUEUE_DEPTH(in_ptr, out_ptr))); - - cmd = (struct Command_Entry *) &hostdata->req_cpu[in_ptr]; - in_ptr = (in_ptr + 1) & QLOGICISP_REQ_QUEUE_LEN; - if (in_ptr == out_ptr) { - printk("qlogicisp : request queue overflow\n"); - return 1; - } - - if (hostdata->send_marker) { - struct Marker_Entry *marker; - - TRACE("queue marker", in_ptr, 0); - - DEBUG(printk("qlogicisp : adding marker entry\n")); - marker = (struct Marker_Entry *) cmd; - memset(marker, 0, sizeof(struct Marker_Entry)); - - marker->hdr.entry_type = ENTRY_MARKER; - marker->hdr.entry_cnt = 1; - marker->modifier = SYNC_ALL; - - hostdata->send_marker = 0; - - if (((in_ptr + 1) & QLOGICISP_REQ_QUEUE_LEN) == out_ptr) { - isp_outw(in_ptr, host, MBOX4); - hostdata->req_in_ptr = in_ptr; - printk("qlogicisp : request queue overflow\n"); - return 1; - } - cmd = (struct Command_Entry *) &hostdata->req_cpu[in_ptr]; - in_ptr = (in_ptr + 1) & QLOGICISP_REQ_QUEUE_LEN; - } - - TRACE("queue command", in_ptr, Cmnd); - - memset(cmd, 0, sizeof(struct Command_Entry)); - - cmd->hdr.entry_type = ENTRY_COMMAND; - cmd->hdr.entry_cnt = 1; - - cmd->target_lun = Cmnd->device->lun; - cmd->target_id = Cmnd->device->id; - cmd->cdb_length = cpu_to_le16(Cmnd->cmd_len); - cmd->control_flags = cpu_to_le16(CFLAG_READ | CFLAG_WRITE); - cmd->time_out = cpu_to_le16(30); - - memcpy(cmd->cdb, Cmnd->cmnd, Cmnd->cmd_len); - - if (Cmnd->use_sg) { - int sg_count; - - sg = (struct scatterlist *) Cmnd->request_buffer; - ds = cmd->dataseg; - - sg_count = pci_map_sg(hostdata->pci_dev, sg, Cmnd->use_sg, - Cmnd->sc_data_direction); - - cmd->segment_cnt = cpu_to_le16(sg_count); - - /* fill in first four sg entries: */ - n = sg_count; - if (n > IOCB_SEGS) - n = IOCB_SEGS; - for (i = 0; i < n; i++) { - dma_addr = sg_dma_address(sg); - ds[i].d_base = cpu_to_le32((u32) dma_addr); -#ifdef CONFIG_QL_ISP_A64 - ds[i].d_base_hi = cpu_to_le32((u32) (dma_addr>>32)); -#endif /* CONFIG_QL_ISP_A64 */ - ds[i].d_count = cpu_to_le32(sg_dma_len(sg)); - ++sg; - } - sg_count -= IOCB_SEGS; - - while (sg_count > 0) { - ++cmd->hdr.entry_cnt; - cont = (struct Continuation_Entry *) - &hostdata->req_cpu[in_ptr]; - in_ptr = (in_ptr + 1) & QLOGICISP_REQ_QUEUE_LEN; - if (in_ptr == out_ptr) { - printk("isp1020: unexpected request queue " - "overflow\n"); - return 1; - } - TRACE("queue continuation", in_ptr, 0); - cont->hdr.entry_type = ENTRY_CONTINUATION; - cont->hdr.entry_cnt = 0; - cont->hdr.sys_def_1 = 0; - cont->hdr.flags = 0; -#ifndef CONFIG_QL_ISP_A64 - cont->reserved = 0; -#endif - ds = cont->dataseg; - n = sg_count; - if (n > CONTINUATION_SEGS) - n = CONTINUATION_SEGS; - for (i = 0; i < n; ++i) { - dma_addr = sg_dma_address(sg); - ds[i].d_base = cpu_to_le32((u32) dma_addr); -#ifdef CONFIG_QL_ISP_A64 - ds[i].d_base_hi = cpu_to_le32((u32)(dma_addr>>32)); -#endif /* CONFIG_QL_ISP_A64 */ - ds[i].d_count = cpu_to_le32(sg_dma_len(sg)); - ++sg; - } - sg_count -= n; - } - } else if (Cmnd->request_bufflen) { - /*Cmnd->SCp.ptr = (char *)(unsigned long)*/ - dma_addr = pci_map_single(hostdata->pci_dev, - Cmnd->request_buffer, - Cmnd->request_bufflen, - Cmnd->sc_data_direction); - Cmnd->SCp.ptr = (char *)(unsigned long) dma_addr; - - cmd->dataseg[0].d_base = - cpu_to_le32((u32) dma_addr); -#ifdef CONFIG_QL_ISP_A64 - cmd->dataseg[0].d_base_hi = - cpu_to_le32((u32) (dma_addr>>32)); -#endif /* CONFIG_QL_ISP_A64 */ - cmd->dataseg[0].d_count = - cpu_to_le32((u32)Cmnd->request_bufflen); - cmd->segment_cnt = cpu_to_le16(1); - } else { - cmd->dataseg[0].d_base = 0; -#ifdef CONFIG_QL_ISP_A64 - cmd->dataseg[0].d_base_hi = 0; -#endif /* CONFIG_QL_ISP_A64 */ - cmd->dataseg[0].d_count = 0; - cmd->segment_cnt = cpu_to_le16(1); /* Shouldn't this be 0? */ - } - - /* Committed, record Scsi_Cmd so we can find it later. */ - cmd->handle = in_ptr; - hostdata->cmd_slots[in_ptr] = Cmnd; - - isp_outw(in_ptr, host, MBOX4); - hostdata->req_in_ptr = in_ptr; - - num_free = QLOGICISP_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr); - host->can_queue = host->host_busy + num_free; - host->sg_tablesize = QLOGICISP_MAX_SG(num_free); - - LEAVE("isp1020_queuecommand"); - - return 0; -} - - -#define ASYNC_EVENT_INTERRUPT 0x01 - -irqreturn_t do_isp1020_intr_handler(int irq, void *dev_id, struct pt_regs *regs) -{ - struct Scsi_Host *host = dev_id; - unsigned long flags; - - spin_lock_irqsave(host->host_lock, flags); - isp1020_intr_handler(irq, dev_id, regs); - spin_unlock_irqrestore(host->host_lock, flags); - - return IRQ_HANDLED; -} - -void isp1020_intr_handler(int irq, void *dev_id, struct pt_regs *regs) -{ - Scsi_Cmnd *Cmnd; - struct Status_Entry *sts; - struct Scsi_Host *host = dev_id; - struct isp1020_hostdata *hostdata; - u_int in_ptr, out_ptr; - u_short status; - - ENTER_INTR("isp1020_intr_handler"); - - hostdata = (struct isp1020_hostdata *) host->hostdata; - - DEBUG_INTR(printk("qlogicisp : interrupt on line %d\n", irq)); - - if (!(isp_inw(host, PCI_INTF_STS) & 0x04)) { - /* spurious interrupts can happen legally */ - DEBUG_INTR(printk("qlogicisp: got spurious interrupt\n")); - return; - } - in_ptr = isp_inw(host, MBOX5); - isp_outw(HCCR_CLEAR_RISC_INTR, host, HOST_HCCR); - - if ((isp_inw(host, PCI_SEMAPHORE) & ASYNC_EVENT_INTERRUPT)) { - status = isp_inw(host, MBOX0); - - DEBUG_INTR(printk("qlogicisp : mbox completion status: %x\n", - status)); - - switch (status) { - case ASYNC_SCSI_BUS_RESET: - case EXECUTION_TIMEOUT_RESET: - hostdata->send_marker = 1; - break; - case INVALID_COMMAND: - case HOST_INTERFACE_ERROR: - case COMMAND_ERROR: - case COMMAND_PARAM_ERROR: - printk("qlogicisp : bad mailbox return status\n"); - break; - } - isp_outw(0x0, host, PCI_SEMAPHORE); - } - out_ptr = hostdata->res_out_ptr; - - DEBUG_INTR(printk("qlogicisp : response queue update\n")); - DEBUG_INTR(printk("qlogicisp : response queue depth %d\n", - QUEUE_DEPTH(in_ptr, out_ptr, RES_QUEUE_LEN))); - - while (out_ptr != in_ptr) { - u_int cmd_slot; - - sts = (struct Status_Entry *) &hostdata->res_cpu[out_ptr]; - out_ptr = (out_ptr + 1) & RES_QUEUE_LEN; - - cmd_slot = sts->handle; - Cmnd = hostdata->cmd_slots[cmd_slot]; - hostdata->cmd_slots[cmd_slot] = NULL; - - TRACE("done", out_ptr, Cmnd); - - if (le16_to_cpu(sts->completion_status) == CS_RESET_OCCURRED - || le16_to_cpu(sts->completion_status) == CS_ABORTED - || (le16_to_cpu(sts->status_flags) & STF_BUS_RESET)) - hostdata->send_marker = 1; - - if (le16_to_cpu(sts->state_flags) & SF_GOT_SENSE) - memcpy(Cmnd->sense_buffer, sts->req_sense_data, - sizeof(Cmnd->sense_buffer)); - - DEBUG_INTR(isp1020_print_status_entry(sts)); - - if (sts->hdr.entry_type == ENTRY_STATUS) - Cmnd->result = isp1020_return_status(sts); - else - Cmnd->result = DID_ERROR << 16; - - if (Cmnd->use_sg) - pci_unmap_sg(hostdata->pci_dev, - (struct scatterlist *)Cmnd->buffer, - Cmnd->use_sg, - Cmnd->sc_data_direction); - else if (Cmnd->request_bufflen) - pci_unmap_single(hostdata->pci_dev, -#ifdef CONFIG_QL_ISP_A64 - (dma_addr_t)((long)Cmnd->SCp.ptr), -#else - (u32)((long)Cmnd->SCp.ptr), -#endif - Cmnd->request_bufflen, - Cmnd->sc_data_direction); - - isp_outw(out_ptr, host, MBOX5); - (*Cmnd->scsi_done)(Cmnd); - } - hostdata->res_out_ptr = out_ptr; - - LEAVE_INTR("isp1020_intr_handler"); -} - - -static int isp1020_return_status(struct Status_Entry *sts) -{ - int host_status = DID_ERROR; -#if DEBUG_ISP1020_INTR - static char *reason[] = { - "DID_OK", - "DID_NO_CONNECT", - "DID_BUS_BUSY", - "DID_TIME_OUT", - "DID_BAD_TARGET", - "DID_ABORT", - "DID_PARITY", - "DID_ERROR", - "DID_RESET", - "DID_BAD_INTR" - }; -#endif /* DEBUG_ISP1020_INTR */ - - ENTER("isp1020_return_status"); - - DEBUG(printk("qlogicisp : completion status = 0x%04x\n", - le16_to_cpu(sts->completion_status))); - - switch(le16_to_cpu(sts->completion_status)) { - case CS_COMPLETE: - host_status = DID_OK; - break; - case CS_INCOMPLETE: - if (!(le16_to_cpu(sts->state_flags) & SF_GOT_BUS)) - host_status = DID_NO_CONNECT; - else if (!(le16_to_cpu(sts->state_flags) & SF_GOT_TARGET)) - host_status = DID_BAD_TARGET; - else if (!(le16_to_cpu(sts->state_flags) & SF_SENT_CDB)) - host_status = DID_ERROR; - else if (!(le16_to_cpu(sts->state_flags) & SF_TRANSFERRED_DATA)) - host_status = DID_ERROR; - else if (!(le16_to_cpu(sts->state_flags) & SF_GOT_STATUS)) - host_status = DID_ERROR; - else if (!(le16_to_cpu(sts->state_flags) & SF_GOT_SENSE)) - host_status = DID_ERROR; - break; - case CS_DMA_ERROR: - case CS_TRANSPORT_ERROR: - host_status = DID_ERROR; - break; - case CS_RESET_OCCURRED: - host_status = DID_RESET; - break; - case CS_ABORTED: - host_status = DID_ABORT; - break; - case CS_TIMEOUT: - host_status = DID_TIME_OUT; - break; - case CS_DATA_OVERRUN: - case CS_COMMAND_OVERRUN: - case CS_STATUS_OVERRUN: - case CS_BAD_MESSAGE: - case CS_NO_MESSAGE_OUT: - case CS_EXT_ID_FAILED: - case CS_IDE_MSG_FAILED: - case CS_ABORT_MSG_FAILED: - case CS_NOP_MSG_FAILED: - case CS_PARITY_ERROR_MSG_FAILED: - case CS_DEVICE_RESET_MSG_FAILED: - case CS_ID_MSG_FAILED: - case CS_UNEXP_BUS_FREE: - host_status = DID_ERROR; - break; - case CS_DATA_UNDERRUN: - host_status = DID_OK; - break; - default: - printk("qlogicisp : unknown completion status 0x%04x\n", - le16_to_cpu(sts->completion_status)); - host_status = DID_ERROR; - break; - } - - DEBUG_INTR(printk("qlogicisp : host status (%s) scsi status %x\n", - reason[host_status], le16_to_cpu(sts->scsi_status))); - - LEAVE("isp1020_return_status"); - - return (le16_to_cpu(sts->scsi_status) & STATUS_MASK) | (host_status << 16); -} - - -static int isp1020_biosparam(struct scsi_device *sdev, struct block_device *n, - sector_t capacity, int ip[]) -{ - int size = capacity; - - ENTER("isp1020_biosparam"); - - ip[0] = 64; - ip[1] = 32; - ip[2] = size >> 11; - if (ip[2] > 1024) { - ip[0] = 255; - ip[1] = 63; - ip[2] = size / (ip[0] * ip[1]); -#if 0 - if (ip[2] > 1023) - ip[2] = 1023; -#endif - } - - LEAVE("isp1020_biosparam"); - - return 0; -} - - -static int isp1020_reset_hardware(struct Scsi_Host *host) -{ - u_short param[6]; - int loop_count; - - ENTER("isp1020_reset_hardware"); - - isp_outw(ISP_RESET, host, PCI_INTF_CTL); - udelay(100); - isp_outw(HCCR_RESET, host, HOST_HCCR); - udelay(100); - isp_outw(HCCR_RELEASE, host, HOST_HCCR); - isp_outw(HCCR_BIOS_DISABLE, host, HOST_HCCR); - - loop_count = DEFAULT_LOOP_COUNT; - while (--loop_count && isp_inw(host, HOST_HCCR) == RISC_BUSY) { - barrier(); - cpu_relax(); - } - if (!loop_count) - printk("qlogicisp: reset_hardware loop timeout\n"); - - isp_outw(0, host, ISP_CFG1); - -#if DEBUG_ISP1020 - printk("qlogicisp : mbox 0 0x%04x \n", isp_inw(host, MBOX0)); - printk("qlogicisp : mbox 1 0x%04x \n", isp_inw(host, MBOX1)); - printk("qlogicisp : mbox 2 0x%04x \n", isp_inw(host, MBOX2)); - printk("qlogicisp : mbox 3 0x%04x \n", isp_inw(host, MBOX3)); - printk("qlogicisp : mbox 4 0x%04x \n", isp_inw(host, MBOX4)); - printk("qlogicisp : mbox 5 0x%04x \n", isp_inw(host, MBOX5)); -#endif /* DEBUG_ISP1020 */ - - param[0] = MBOX_NO_OP; - isp1020_mbox_command(host, param); - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : NOP test failed\n"); - return 1; - } - - DEBUG(printk("qlogicisp : loading risc ram\n")); - -#if RELOAD_FIRMWARE - for (loop_count = 0; loop_count < risc_code_length01; loop_count++) { - param[0] = MBOX_WRITE_RAM_WORD; - param[1] = risc_code_addr01 + loop_count; - param[2] = risc_code01[loop_count]; - isp1020_mbox_command(host, param); - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : firmware load failure at %d\n", - loop_count); - return 1; - } - } -#endif /* RELOAD_FIRMWARE */ - - DEBUG(printk("qlogicisp : verifying checksum\n")); - - param[0] = MBOX_VERIFY_CHECKSUM; - param[1] = risc_code_addr01; - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : ram checksum failure\n"); - return 1; - } - - DEBUG(printk("qlogicisp : executing firmware\n")); - - param[0] = MBOX_EXEC_FIRMWARE; - param[1] = risc_code_addr01; - - isp1020_mbox_command(host, param); - - param[0] = MBOX_ABOUT_FIRMWARE; - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : about firmware failure\n"); - return 1; - } - - DEBUG(printk("qlogicisp : firmware major revision %d\n", param[1])); - DEBUG(printk("qlogicisp : firmware minor revision %d\n", param[2])); - - LEAVE("isp1020_reset_hardware"); - - return 0; -} - - -static int isp1020_init(struct Scsi_Host *sh) -{ - u_long io_base, mem_base, io_flags, mem_flags; - struct isp1020_hostdata *hostdata; - u_char revision; - u_int irq; - u_short command; - struct pci_dev *pdev; - - ENTER("isp1020_init"); - - hostdata = (struct isp1020_hostdata *) sh->hostdata; - pdev = hostdata->pci_dev; - - if (pci_read_config_word(pdev, PCI_COMMAND, &command) - || pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision)) - { - printk("qlogicisp : error reading PCI configuration\n"); - return 1; - } - - io_base = pci_resource_start(pdev, 0); - mem_base = pci_resource_start(pdev, 1); - io_flags = pci_resource_flags(pdev, 0); - mem_flags = pci_resource_flags(pdev, 1); - irq = pdev->irq; - - if (pdev->vendor != PCI_VENDOR_ID_QLOGIC) { - printk("qlogicisp : 0x%04x is not QLogic vendor ID\n", - pdev->vendor); - return 1; - } - - if (pdev->device != PCI_DEVICE_ID_QLOGIC_ISP1020) { - printk("qlogicisp : 0x%04x does not match ISP1020 device id\n", - pdev->device); - return 1; - } - -#ifdef __alpha__ - /* Force ALPHA to use bus I/O and not bus MEM. - This is to avoid having to use HAE_MEM registers, - which is broken on some platforms and with SMP. */ - command &= ~PCI_COMMAND_MEMORY; -#endif - - sh->io_port = io_base; - - if (!request_region(sh->io_port, 0xff, "qlogicisp")) { - printk("qlogicisp : i/o region 0x%lx-0x%lx already " - "in use\n", - sh->io_port, sh->io_port + 0xff); - return 1; - } - - if ((command & PCI_COMMAND_MEMORY) && - ((mem_flags & 1) == 0)) { - hostdata->memaddr = ioremap(mem_base, PAGE_SIZE); - if (!hostdata->memaddr) { - printk("qlogicisp : i/o remapping failed.\n"); - goto out_release; - } - } else { - if (command & PCI_COMMAND_IO && (io_flags & 3) != 1) { - printk("qlogicisp : i/o mapping is disabled\n"); - goto out_release; - } - hostdata->memaddr = NULL; /* zero to signify no i/o mapping */ - mem_base = 0; - } - - if (revision != ISP1020_REV_ID) - printk("qlogicisp : new isp1020 revision ID (%d)\n", revision); - - if (isp_inw(sh, PCI_ID_LOW) != PCI_VENDOR_ID_QLOGIC - || isp_inw(sh, PCI_ID_HIGH) != PCI_DEVICE_ID_QLOGIC_ISP1020) - { - printk("qlogicisp : can't decode %s address space 0x%lx\n", - (io_base ? "I/O" : "MEM"), - (io_base ? io_base : mem_base)); - goto out_unmap; - } - - hostdata->revision = revision; - - sh->irq = irq; - sh->max_id = MAX_TARGETS; - sh->max_lun = MAX_LUNS; - - hostdata->res_cpu = pci_alloc_consistent(hostdata->pci_dev, - QSIZE(RES_QUEUE_LEN), - &hostdata->res_dma); - if (hostdata->res_cpu == NULL) { - printk("qlogicisp : can't allocate response queue\n"); - goto out_unmap; - } - - hostdata->req_cpu = pci_alloc_consistent(hostdata->pci_dev, - QSIZE(QLOGICISP_REQ_QUEUE_LEN), - &hostdata->req_dma); - if (hostdata->req_cpu == NULL) { - pci_free_consistent(hostdata->pci_dev, - QSIZE(RES_QUEUE_LEN), - hostdata->res_cpu, - hostdata->res_dma); - printk("qlogicisp : can't allocate request queue\n"); - goto out_unmap; - } - - pci_set_master(pdev); - - LEAVE("isp1020_init"); - - return 0; - -out_unmap: - iounmap(hostdata->memaddr); -out_release: - release_region(sh->io_port, 0xff); - return 1; -} - - -#if USE_NVRAM_DEFAULTS - -static int isp1020_get_defaults(struct Scsi_Host *host) -{ - int i; - u_short value; - struct isp1020_hostdata *hostdata = - (struct isp1020_hostdata *) host->hostdata; - - ENTER("isp1020_get_defaults"); - - if (!isp1020_verify_nvram(host)) { - printk("qlogicisp : nvram checksum failure\n"); - printk("qlogicisp : attempting to use default parameters\n"); - return isp1020_set_defaults(host); - } - - value = isp1020_read_nvram_word(host, 2); - hostdata->host_param.fifo_threshold = (value >> 8) & 0x03; - hostdata->host_param.host_adapter_enable = (value >> 11) & 0x01; - hostdata->host_param.initiator_scsi_id = (value >> 12) & 0x0f; - - value = isp1020_read_nvram_word(host, 3); - hostdata->host_param.bus_reset_delay = value & 0xff; - hostdata->host_param.retry_count = value >> 8; - - value = isp1020_read_nvram_word(host, 4); - hostdata->host_param.retry_delay = value & 0xff; - hostdata->host_param.async_data_setup_time = (value >> 8) & 0x0f; - hostdata->host_param.req_ack_active_negation = (value >> 12) & 0x01; - hostdata->host_param.data_line_active_negation = (value >> 13) & 0x01; - hostdata->host_param.data_dma_burst_enable = (value >> 14) & 0x01; - hostdata->host_param.command_dma_burst_enable = (value >> 15); - - value = isp1020_read_nvram_word(host, 5); - hostdata->host_param.tag_aging = value & 0xff; - - value = isp1020_read_nvram_word(host, 6); - hostdata->host_param.selection_timeout = value & 0xffff; - - value = isp1020_read_nvram_word(host, 7); - hostdata->host_param.max_queue_depth = value & 0xffff; - -#if DEBUG_ISP1020_SETUP - printk("qlogicisp : fifo threshold=%d\n", - hostdata->host_param.fifo_threshold); - printk("qlogicisp : initiator scsi id=%d\n", - hostdata->host_param.initiator_scsi_id); - printk("qlogicisp : bus reset delay=%d\n", - hostdata->host_param.bus_reset_delay); - printk("qlogicisp : retry count=%d\n", - hostdata->host_param.retry_count); - printk("qlogicisp : retry delay=%d\n", - hostdata->host_param.retry_delay); - printk("qlogicisp : async data setup time=%d\n", - hostdata->host_param.async_data_setup_time); - printk("qlogicisp : req/ack active negation=%d\n", - hostdata->host_param.req_ack_active_negation); - printk("qlogicisp : data line active negation=%d\n", - hostdata->host_param.data_line_active_negation); - printk("qlogicisp : data DMA burst enable=%d\n", - hostdata->host_param.data_dma_burst_enable); - printk("qlogicisp : command DMA burst enable=%d\n", - hostdata->host_param.command_dma_burst_enable); - printk("qlogicisp : tag age limit=%d\n", - hostdata->host_param.tag_aging); - printk("qlogicisp : selection timeout limit=%d\n", - hostdata->host_param.selection_timeout); - printk("qlogicisp : max queue depth=%d\n", - hostdata->host_param.max_queue_depth); -#endif /* DEBUG_ISP1020_SETUP */ - - for (i = 0; i < MAX_TARGETS; i++) { - - value = isp1020_read_nvram_word(host, 14 + i * 3); - hostdata->dev_param[i].device_flags = value & 0xff; - hostdata->dev_param[i].execution_throttle = value >> 8; - - value = isp1020_read_nvram_word(host, 15 + i * 3); - hostdata->dev_param[i].synchronous_period = value & 0xff; - hostdata->dev_param[i].synchronous_offset = (value >> 8) & 0x0f; - hostdata->dev_param[i].device_enable = (value >> 12) & 0x01; - -#if DEBUG_ISP1020_SETUP - printk("qlogicisp : target 0x%02x\n", i); - printk("qlogicisp : device flags=0x%02x\n", - hostdata->dev_param[i].device_flags); - printk("qlogicisp : execution throttle=%d\n", - hostdata->dev_param[i].execution_throttle); - printk("qlogicisp : synchronous period=%d\n", - hostdata->dev_param[i].synchronous_period); - printk("qlogicisp : synchronous offset=%d\n", - hostdata->dev_param[i].synchronous_offset); - printk("qlogicisp : device enable=%d\n", - hostdata->dev_param[i].device_enable); -#endif /* DEBUG_ISP1020_SETUP */ - } - - LEAVE("isp1020_get_defaults"); - - return 0; -} - - -#define ISP1020_NVRAM_LEN 0x40 -#define ISP1020_NVRAM_SIG1 0x5349 -#define ISP1020_NVRAM_SIG2 0x2050 - -static int isp1020_verify_nvram(struct Scsi_Host *host) -{ - int i; - u_short value; - u_char checksum = 0; - - for (i = 0; i < ISP1020_NVRAM_LEN; i++) { - value = isp1020_read_nvram_word(host, i); - - switch (i) { - case 0: - if (value != ISP1020_NVRAM_SIG1) return 0; - break; - case 1: - if (value != ISP1020_NVRAM_SIG2) return 0; - break; - case 2: - if ((value & 0xff) != 0x02) return 0; - break; - } - checksum += value & 0xff; - checksum += value >> 8; - } - - return (checksum == 0); -} - -#define NVRAM_DELAY() udelay(2) /* 2 microsecond delay */ - - -u_short isp1020_read_nvram_word(struct Scsi_Host *host, u_short byte) -{ - int i; - u_short value, output, input; - - byte &= 0x3f; byte |= 0x0180; - - for (i = 8; i >= 0; i--) { - output = ((byte >> i) & 0x1) ? 0x4 : 0x0; - isp_outw(output | 0x2, host, PCI_NVRAM); NVRAM_DELAY(); - isp_outw(output | 0x3, host, PCI_NVRAM); NVRAM_DELAY(); - isp_outw(output | 0x2, host, PCI_NVRAM); NVRAM_DELAY(); - } - - for (i = 0xf, value = 0; i >= 0; i--) { - value <<= 1; - isp_outw(0x3, host, PCI_NVRAM); NVRAM_DELAY(); - input = isp_inw(host, PCI_NVRAM); NVRAM_DELAY(); - isp_outw(0x2, host, PCI_NVRAM); NVRAM_DELAY(); - if (input & 0x8) value |= 1; - } - - isp_outw(0x0, host, PCI_NVRAM); NVRAM_DELAY(); - - return value; -} - -#endif /* USE_NVRAM_DEFAULTS */ - - -static int isp1020_set_defaults(struct Scsi_Host *host) -{ - struct isp1020_hostdata *hostdata = - (struct isp1020_hostdata *) host->hostdata; - int i; - - ENTER("isp1020_set_defaults"); - - hostdata->host_param.fifo_threshold = 2; - hostdata->host_param.host_adapter_enable = 1; - hostdata->host_param.initiator_scsi_id = 7; - hostdata->host_param.bus_reset_delay = 3; - hostdata->host_param.retry_count = 0; - hostdata->host_param.retry_delay = 1; - hostdata->host_param.async_data_setup_time = 6; - hostdata->host_param.req_ack_active_negation = 1; - hostdata->host_param.data_line_active_negation = 1; - hostdata->host_param.data_dma_burst_enable = 1; - hostdata->host_param.command_dma_burst_enable = 1; - hostdata->host_param.tag_aging = 8; - hostdata->host_param.selection_timeout = 250; - hostdata->host_param.max_queue_depth = 256; - - for (i = 0; i < MAX_TARGETS; i++) { - hostdata->dev_param[i].device_flags = 0xfd; - hostdata->dev_param[i].execution_throttle = 16; - hostdata->dev_param[i].synchronous_period = 25; - hostdata->dev_param[i].synchronous_offset = 12; - hostdata->dev_param[i].device_enable = 1; - } - - LEAVE("isp1020_set_defaults"); - - return 0; -} - - -static int isp1020_load_parameters(struct Scsi_Host *host) -{ - int i, k; -#ifdef CONFIG_QL_ISP_A64 - u_long queue_addr; - u_short param[8]; -#else - u_int queue_addr; - u_short param[6]; -#endif - u_short isp_cfg1, hwrev; - struct isp1020_hostdata *hostdata = - (struct isp1020_hostdata *) host->hostdata; - - ENTER("isp1020_load_parameters"); - - hwrev = isp_inw(host, ISP_CFG0) & ISP_CFG0_HWMSK; - isp_cfg1 = ISP_CFG1_F64 | ISP_CFG1_BENAB; - if (hwrev == ISP_CFG0_1040A) { - /* Busted fifo, says mjacob. */ - isp_cfg1 &= ISP_CFG1_BENAB; - } - - isp_outw(isp_inw(host, ISP_CFG1) | isp_cfg1, host, ISP_CFG1); - isp_outw(isp_inw(host, CDMA_CONF) | DMA_CONF_BENAB, host, CDMA_CONF); - isp_outw(isp_inw(host, DDMA_CONF) | DMA_CONF_BENAB, host, DDMA_CONF); - - param[0] = MBOX_SET_INIT_SCSI_ID; - param[1] = hostdata->host_param.initiator_scsi_id; - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : set initiator id failure\n"); - return 1; - } - - param[0] = MBOX_SET_RETRY_COUNT; - param[1] = hostdata->host_param.retry_count; - param[2] = hostdata->host_param.retry_delay; - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : set retry count failure\n"); - return 1; - } - - param[0] = MBOX_SET_ASYNC_DATA_SETUP_TIME; - param[1] = hostdata->host_param.async_data_setup_time; - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : async data setup time failure\n"); - return 1; - } - - param[0] = MBOX_SET_ACTIVE_NEG_STATE; - param[1] = (hostdata->host_param.req_ack_active_negation << 4) - | (hostdata->host_param.data_line_active_negation << 5); - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : set active negation state failure\n"); - return 1; - } - - param[0] = MBOX_SET_PCI_CONTROL_PARAMS; - param[1] = hostdata->host_param.data_dma_burst_enable << 1; - param[2] = hostdata->host_param.command_dma_burst_enable << 1; - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : set pci control parameter failure\n"); - return 1; - } - - param[0] = MBOX_SET_TAG_AGE_LIMIT; - param[1] = hostdata->host_param.tag_aging; - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : set tag age limit failure\n"); - return 1; - } - - param[0] = MBOX_SET_SELECT_TIMEOUT; - param[1] = hostdata->host_param.selection_timeout; - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : set selection timeout failure\n"); - return 1; - } - - for (i = 0; i < MAX_TARGETS; i++) { - - if (!hostdata->dev_param[i].device_enable) - continue; - - param[0] = MBOX_SET_TARGET_PARAMS; - param[1] = i << 8; - param[2] = hostdata->dev_param[i].device_flags << 8; - param[3] = (hostdata->dev_param[i].synchronous_offset << 8) - | hostdata->dev_param[i].synchronous_period; - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : set target parameter failure\n"); - return 1; - } - - for (k = 0; k < MAX_LUNS; k++) { - - param[0] = MBOX_SET_DEV_QUEUE_PARAMS; - param[1] = (i << 8) | k; - param[2] = hostdata->host_param.max_queue_depth; - param[3] = hostdata->dev_param[i].execution_throttle; - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : set device queue " - "parameter failure\n"); - return 1; - } - } - } - - queue_addr = hostdata->res_dma; -#ifdef CONFIG_QL_ISP_A64 - param[0] = MBOX_CMD_INIT_RESPONSE_QUEUE_64; -#else - param[0] = MBOX_INIT_RES_QUEUE; -#endif - param[1] = RES_QUEUE_LEN + 1; - param[2] = (u_short) (queue_addr >> 16); - param[3] = (u_short) (queue_addr & 0xffff); - param[4] = 0; - param[5] = 0; -#ifdef CONFIG_QL_ISP_A64 - param[6] = (u_short) (queue_addr >> 48); - param[7] = (u_short) (queue_addr >> 32); -#endif - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : set response queue failure\n"); - return 1; - } - - queue_addr = hostdata->req_dma; -#ifdef CONFIG_QL_ISP_A64 - param[0] = MBOX_CMD_INIT_REQUEST_QUEUE_64; -#else - param[0] = MBOX_INIT_REQ_QUEUE; -#endif - param[1] = QLOGICISP_REQ_QUEUE_LEN + 1; - param[2] = (u_short) (queue_addr >> 16); - param[3] = (u_short) (queue_addr & 0xffff); - param[4] = 0; - -#ifdef CONFIG_QL_ISP_A64 - param[5] = 0; - param[6] = (u_short) (queue_addr >> 48); - param[7] = (u_short) (queue_addr >> 32); -#endif - - isp1020_mbox_command(host, param); - - if (param[0] != MBOX_COMMAND_COMPLETE) { - printk("qlogicisp : set request queue failure\n"); - return 1; - } - - LEAVE("isp1020_load_parameters"); - - return 0; -} - - -/* - * currently, this is only called during initialization or abort/reset, - * at which times interrupts are disabled, so polling is OK, I guess... - */ -static int isp1020_mbox_command(struct Scsi_Host *host, u_short param[]) -{ - int loop_count; - - if (mbox_param[param[0]] == 0) - return 1; - - loop_count = DEFAULT_LOOP_COUNT; - while (--loop_count && isp_inw(host, HOST_HCCR) & 0x0080) { - barrier(); - cpu_relax(); - } - if (!loop_count) - printk("qlogicisp: mbox_command loop timeout #1\n"); - - switch(mbox_param[param[0]] >> 4) { - case 8: isp_outw(param[7], host, MBOX7); - case 7: isp_outw(param[6], host, MBOX6); - case 6: isp_outw(param[5], host, MBOX5); - case 5: isp_outw(param[4], host, MBOX4); - case 4: isp_outw(param[3], host, MBOX3); - case 3: isp_outw(param[2], host, MBOX2); - case 2: isp_outw(param[1], host, MBOX1); - case 1: isp_outw(param[0], host, MBOX0); - } - - isp_outw(0x0, host, PCI_SEMAPHORE); - isp_outw(HCCR_CLEAR_RISC_INTR, host, HOST_HCCR); - isp_outw(HCCR_SET_HOST_INTR, host, HOST_HCCR); - - loop_count = DEFAULT_LOOP_COUNT; - while (--loop_count && !(isp_inw(host, PCI_INTF_STS) & 0x04)) { - barrier(); - cpu_relax(); - } - if (!loop_count) - printk("qlogicisp: mbox_command loop timeout #2\n"); - - loop_count = DEFAULT_LOOP_COUNT; - while (--loop_count && isp_inw(host, MBOX0) == 0x04) { - barrier(); - cpu_relax(); - } - if (!loop_count) - printk("qlogicisp: mbox_command loop timeout #3\n"); - - switch(mbox_param[param[0]] & 0xf) { - case 8: param[7] = isp_inw(host, MBOX7); - case 7: param[6] = isp_inw(host, MBOX6); - case 6: param[5] = isp_inw(host, MBOX5); - case 5: param[4] = isp_inw(host, MBOX4); - case 4: param[3] = isp_inw(host, MBOX3); - case 3: param[2] = isp_inw(host, MBOX2); - case 2: param[1] = isp_inw(host, MBOX1); - case 1: param[0] = isp_inw(host, MBOX0); - } - - isp_outw(0x0, host, PCI_SEMAPHORE); - isp_outw(HCCR_CLEAR_RISC_INTR, host, HOST_HCCR); - - return 0; -} - - -#if DEBUG_ISP1020_INTR - -void isp1020_print_status_entry(struct Status_Entry *status) -{ - int i; - - printk("qlogicisp : entry count = 0x%02x, type = 0x%02x, flags = 0x%02x\n", - status->hdr.entry_cnt, status->hdr.entry_type, status->hdr.flags); - printk("qlogicisp : scsi status = 0x%04x, completion status = 0x%04x\n", - le16_to_cpu(status->scsi_status), le16_to_cpu(status->completion_status)); - printk("qlogicisp : state flags = 0x%04x, status flags = 0x%04x\n", - le16_to_cpu(status->state_flags), le16_to_cpu(status->status_flags)); - printk("qlogicisp : time = 0x%04x, request sense length = 0x%04x\n", - le16_to_cpu(status->time), le16_to_cpu(status->req_sense_len)); - printk("qlogicisp : residual transfer length = 0x%08x\n", - le32_to_cpu(status->residual)); - - for (i = 0; i < le16_to_cpu(status->req_sense_len); i++) - printk("qlogicisp : sense data = 0x%02x\n", status->req_sense_data[i]); -} - -#endif /* DEBUG_ISP1020_INTR */ - - -#if DEBUG_ISP1020 - -void isp1020_print_scsi_cmd(Scsi_Cmnd *cmd) -{ - int i; - - printk("qlogicisp : target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n", - cmd->target, cmd->lun, cmd->cmd_len); - printk("qlogicisp : command = "); - for (i = 0; i < cmd->cmd_len; i++) - printk("0x%02x ", cmd->cmnd[i]); - printk("\n"); -} - -#endif /* DEBUG_ISP1020 */ - -MODULE_LICENSE("GPL"); - -static Scsi_Host_Template driver_template = { - .detect = isp1020_detect, - .release = isp1020_release, - .info = isp1020_info, - .queuecommand = isp1020_queuecommand, - .bios_param = isp1020_biosparam, - .can_queue = QLOGICISP_REQ_QUEUE_LEN, - .this_id = -1, - .sg_tablesize = QLOGICISP_MAX_SG(QLOGICISP_REQ_QUEUE_LEN), - .cmd_per_lun = 1, - .use_clustering = DISABLE_CLUSTERING, -}; -#include "scsi_module.c" |