diff options
Diffstat (limited to 'drivers/scsi/qlogicfc.c')
| -rw-r--r-- | drivers/scsi/qlogicfc.c | 2227 |
1 files changed, 2227 insertions, 0 deletions
diff --git a/drivers/scsi/qlogicfc.c b/drivers/scsi/qlogicfc.c new file mode 100644 index 000000000000..24c1174b0c2f --- /dev/null +++ b/drivers/scsi/qlogicfc.c @@ -0,0 +1,2227 @@ +/* + * QLogic ISP2x00 SCSI-FCP + * Written by Erik H. Moe, ehm@cris.com + * Copyright 1995, Erik H. Moe + * + * 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. + */ + +/* Renamed and updated to 1.3.x by Michael Griffith <grif@cs.ucr.edu> */ + +/* This is a version of the isp1020 driver which was modified by + * Chris Loveland <cwl@iol.unh.edu> to support the isp2100 and isp2200 + * + * Big endian support and dynamic DMA mapping added + * by Jakub Jelinek <jakub@redhat.com>. + * + * Conversion to final pci64 DMA interfaces + * by David S. Miller <davem@redhat.com>. + */ + +/* + * $Date: 1995/09/22 02:23:15 $ + * $Revision: 0.5 $ + * + * $Log: isp1020.c,v $ + * Revision 0.5 1995/09/22 02:23:15 root + * do auto request sense + * + * Revision 0.4 1995/08/07 04:44:33 root + * supply firmware with driver. + * numerous bug fixes/general cleanup of code. + * + * Revision 0.3 1995/07/16 16:15:39 root + * added reset/abort code. + * + * Revision 0.2 1995/06/29 03:14:19 root + * fixed biosparam. + * added queue protocol. + * + * Revision 0.1 1995/06/25 01:55:45 root + * Initial release. + * + */ + +#include <linux/blkdev.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 "scsi.h" +#include <scsi/scsi_host.h> + +#define pci64_dma_hi32(a) ((u32) (0xffffffff & (((u64)(a))>>32))) +#define pci64_dma_lo32(a) ((u32) (0xffffffff & (((u64)(a))))) +#define pci64_dma_build(hi,lo) \ + ((dma_addr_t)(((u64)(lo))|(((u64)(hi))<<32))) + +/* + * With the qlogic interface, every queue slot can hold a SCSI + * command with up to 2 scatter/gather entries. If we need more + * than 2 entries, continuation entries can be used that hold + * another 5 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 DATASEGS_PER_COMMAND 2 +#define DATASEGS_PER_CONT 5 + +#define QLOGICFC_REQ_QUEUE_LEN 255 /* must be power of two - 1 */ +#define QLOGICFC_MAX_SG(ql) (DATASEGS_PER_COMMAND + (((ql) > 0) ? DATASEGS_PER_CONT*((ql) - 1) : 0)) +#define QLOGICFC_CMD_PER_LUN 8 + +/* Configuration section **************************************************** */ + +/* Set the following macro to 1 to reload the ISP2x00's firmware. This is + version 1.17.30 of the isp2100's firmware and version 2.00.40 of the + isp2200's firmware. +*/ + +#define USE_NVRAM_DEFAULTS 1 + +#define ISP2x00_PORTDB 1 + +/* Set the following to 1 to include fabric support, fabric support is + * currently not as well tested as the other aspects of the driver */ + +#define ISP2x00_FABRIC 1 + +/* Macros used for debugging */ +#define DEBUG_ISP2x00 0 +#define DEBUG_ISP2x00_INT 0 +#define DEBUG_ISP2x00_INTR 0 +#define DEBUG_ISP2x00_SETUP 0 +#define DEBUG_ISP2x00_FABRIC 0 +#define TRACE_ISP 0 + + +#define DEFAULT_LOOP_COUNT 1000000000 + +#define ISP_TIMEOUT (2*HZ) +/* 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; \ + \ + save_flags(flags); \ + cli(); \ + 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); \ + restore_flags(flags); \ +} + +#else +#define TRACE(w, i, a) +#endif + +#if DEBUG_ISP2x00_FABRIC +#define DEBUG_FABRIC(x) x +#else +#define DEBUG_FABRIC(x) +#endif /* DEBUG_ISP2x00_FABRIC */ + + +#if DEBUG_ISP2x00 +#define ENTER(x) printk("isp2x00 : entering %s()\n", x); +#define LEAVE(x) printk("isp2x00 : leaving %s()\n", x); +#define DEBUG(x) x +#else +#define ENTER(x) +#define LEAVE(x) +#define DEBUG(x) +#endif /* DEBUG_ISP2x00 */ + +#if DEBUG_ISP2x00_INTR +#define ENTER_INTR(x) printk("isp2x00 : entering %s()\n", x); +#define LEAVE_INTR(x) printk("isp2x00 : leaving %s()\n", x); +#define DEBUG_INTR(x) x +#else +#define ENTER_INTR(x) +#define LEAVE_INTR(x) +#define DEBUG_INTR(x) +#endif /* DEBUG ISP2x00_INTR */ + + +#define ISP2100_REV_ID1 1 +#define ISP2100_REV_ID3 3 +#define ISP2200_REV_ID5 5 + +/* host configuration and control registers */ +#define HOST_HCCR 0xc0 /* host command and control */ + +/* pci bus interface registers */ +#define FLASH_BIOS_ADDR 0x00 +#define FLASH_BIOS_DATA 0x02 +#define ISP_CTRL_STATUS 0x06 /* configuration register #1 */ +#define PCI_INTER_CTL 0x08 /* pci interrupt control */ +#define PCI_INTER_STS 0x0a /* pci interrupt status */ +#define PCI_SEMAPHORE 0x0c /* pci semaphore */ +#define PCI_NVRAM 0x0e /* pci nvram interface */ + +/* mailbox registers */ +#define MBOX0 0x10 /* mailbox 0 */ +#define MBOX1 0x12 /* mailbox 1 */ +#define MBOX2 0x14 /* mailbox 2 */ +#define MBOX3 0x16 /* mailbox 3 */ +#define MBOX4 0x18 /* mailbox 4 */ +#define MBOX5 0x1a /* mailbox 5 */ +#define MBOX6 0x1c /* mailbox 6 */ +#define MBOX7 0x1e /* 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 +#define PORT_ID_USED 0x4007 +#define LOOP_ID_USED 0x4008 +#define ALL_IDS_USED 0x4009 + +/* async event status codes */ +#define RESET_DETECTED 0x8001 +#define SYSTEM_ERROR 0x8002 +#define REQUEST_TRANSFER_ERROR 0x8003 +#define RESPONSE_TRANSFER_ERROR 0x8004 +#define REQUEST_QUEUE_WAKEUP 0x8005 +#define LIP_OCCURRED 0x8010 +#define LOOP_UP 0x8011 +#define LOOP_DOWN 0x8012 +#define LIP_RECEIVED 0x8013 +#define PORT_DB_CHANGED 0x8014 +#define CHANGE_NOTIFICATION 0x8015 +#define SCSI_COMMAND_COMPLETE 0x8020 +#define POINT_TO_POINT_UP 0x8030 +#define CONNECTION_MODE 0x8036 + +struct Entry_header { + u_char entry_type; + u_char entry_cnt; + u_char sys_def_1; + u_char flags; +}; + +/* entry header type commands */ +#define ENTRY_COMMAND 0x19 +#define ENTRY_CONTINUATION 0x0a + +#define ENTRY_STATUS 0x03 +#define ENTRY_MARKER 0x04 + + +/* entry header flag definitions */ +#define EFLAG_BUSY 2 +#define EFLAG_BAD_HEADER 4 +#define EFLAG_BAD_PAYLOAD 8 + +struct dataseg { + u_int d_base; + u_int d_base_hi; + u_int d_count; +}; + +struct Command_Entry { + struct Entry_header hdr; + u_int handle; + u_char target_lun; + u_char target_id; + u_short expanded_lun; + u_short control_flags; + u_short rsvd2; + u_short time_out; + u_short segment_cnt; + u_char cdb[16]; + u_int total_byte_cnt; + struct dataseg dataseg[DATASEGS_PER_COMMAND]; +}; + +/* 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 Continuation_Entry { + struct Entry_header hdr; + struct dataseg dataseg[DATASEGS_PER_CONT]; +}; + +struct Marker_Entry { + struct Entry_header hdr; + u_int reserved; + u_char target_lun; + u_char target_id; + u_char modifier; + u_char expanded_lun; + 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 res_info_len; + u_short req_sense_len; + u_int residual; + u_char res_info[8]; + u_char req_sense_data[32]; +}; + +/* status entry completion status definitions */ +#define CS_COMPLETE 0x0000 +#define CS_DMA_ERROR 0x0002 +#define CS_RESET_OCCURRED 0x0004 +#define CS_ABORTED 0x0005 +#define CS_TIMEOUT 0x0006 +#define CS_DATA_OVERRUN 0x0007 +#define CS_DATA_UNDERRUN 0x0015 +#define CS_QUEUE_FULL 0x001c +#define CS_PORT_UNAVAILABLE 0x0028 +#define CS_PORT_LOGGED_OUT 0x0029 +#define CS_PORT_CONFIG_CHANGED 0x002a + +/* status entry state flag definitions */ +#define SF_SENT_CDB 0x0400 +#define SF_TRANSFERRED_DATA 0x0800 +#define SF_GOT_STATUS 0x1000 + +/* status entry status flag definitions */ +#define STF_BUS_RESET 0x0008 +#define STF_DEVICE_RESET 0x0010 +#define STF_ABORTED 0x0020 +#define STF_TIMEOUT 0x0040 + +/* interrupt control commands */ +#define ISP_EN_INT 0x8000 +#define ISP_EN_RISC 0x0008 + +/* 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_LOAD_RISC_RAM 0x0009 +#define MBOX_DUMP_RISC_RAM 0x000a +#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_IOCB 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_RETRY_COUNT 0x0022 +#define MBOX_GET_TARGET_PARAMS 0x0028 +#define MBOX_GET_DEV_QUEUE_PARAMS 0x0029 +#define MBOX_SET_RETRY_COUNT 0x0032 +#define MBOX_SET_TARGET_PARAMS 0x0038 +#define MBOX_SET_DEV_QUEUE_PARAMS 0x0039 +#define MBOX_EXECUTE_IOCB64 0x0054 +#define MBOX_INIT_FIRMWARE 0x0060 +#define MBOX_GET_INIT_CB 0x0061 +#define MBOX_INIT_LIP 0x0062 +#define MBOX_GET_POS_MAP 0x0063 +#define MBOX_GET_PORT_DB 0x0064 +#define MBOX_CLEAR_ACA 0x0065 +#define MBOX_TARGET_RESET 0x0066 +#define MBOX_CLEAR_TASK_SET 0x0067 +#define MBOX_ABORT_TASK_SET 0x0068 +#define MBOX_GET_FIRMWARE_STATE 0x0069 +#define MBOX_GET_PORT_NAME 0x006a +#define MBOX_SEND_SNS 0x006e +#define MBOX_PORT_LOGIN 0x006f +#define MBOX_SEND_CHANGE_REQUEST 0x0070 +#define MBOX_PORT_LOGOUT 0x0071 + +/* + * Firmware if needed (note this is a hack, it belongs in a separate + * module. + */ + +#ifdef CONFIG_SCSI_QLOGIC_FC_FIRMWARE +#include "qlogicfc_asm.c" +#else +static unsigned short risc_code_addr01 = 0x1000 ; +#endif + +/* Each element in mbox_param is an 8 bit bitmap where each bit indicates + if that mbox should be copied as input. For example 0x2 would mean + only copy mbox1. */ + +static const u_char mbox_param[] = +{ + 0x01, /* MBOX_NO_OP */ + 0x1f, /* MBOX_LOAD_RAM */ + 0x03, /* MBOX_EXEC_FIRMWARE */ + 0x1f, /* MBOX_DUMP_RAM */ + 0x07, /* MBOX_WRITE_RAM_WORD */ + 0x03, /* MBOX_READ_RAM_WORD */ + 0xff, /* MBOX_MAILBOX_REG_TEST */ + 0x03, /* MBOX_VERIFY_CHECKSUM */ + 0x01, /* MBOX_ABOUT_FIRMWARE */ + 0xff, /* MBOX_LOAD_RISC_RAM */ + 0xff, /* MBOX_DUMP_RISC_RAM */ + 0x00, /* 0x000b */ + 0x00, /* 0x000c */ + 0x00, /* 0x000d */ + 0x01, /* MBOX_CHECK_FIRMWARE */ + 0x00, /* 0x000f */ + 0x1f, /* MBOX_INIT_REQ_QUEUE */ + 0x2f, /* MBOX_INIT_RES_QUEUE */ + 0x0f, /* MBOX_EXECUTE_IOCB */ + 0x03, /* MBOX_WAKE_UP */ + 0x01, /* MBOX_STOP_FIRMWARE */ + 0x0f, /* MBOX_ABORT_IOCB */ + 0x03, /* MBOX_ABORT_DEVICE */ + 0x07, /* MBOX_ABORT_TARGET */ + 0x03, /* MBOX_BUS_RESET */ + 0x03, /* MBOX_STOP_QUEUE */ + 0x03, /* MBOX_START_QUEUE */ + 0x03, /* MBOX_SINGLE_STEP_QUEUE */ + 0x03, /* MBOX_ABORT_QUEUE */ + 0x03, /* MBOX_GET_DEV_QUEUE_STATUS */ + 0x00, /* 0x001e */ + 0x01, /* MBOX_GET_FIRMWARE_STATUS */ + 0x01, /* MBOX_GET_INIT_SCSI_ID */ + 0x00, /* 0x0021 */ + 0x01, /* MBOX_GET_RETRY_COUNT */ + 0x00, /* 0x0023 */ + 0x00, /* 0x0024 */ + 0x00, /* 0x0025 */ + 0x00, /* 0x0026 */ + 0x00, /* 0x0027 */ + 0x03, /* MBOX_GET_TARGET_PARAMS */ + 0x03, /* MBOX_GET_DEV_QUEUE_PARAMS */ + 0x00, /* 0x002a */ + 0x00, /* 0x002b */ + 0x00, /* 0x002c */ + 0x00, /* 0x002d */ + 0x00, /* 0x002e */ + 0x00, /* 0x002f */ + 0x00, /* 0x0030 */ + 0x00, /* 0x0031 */ + 0x07, /* MBOX_SET_RETRY_COUNT */ + 0x00, /* 0x0033 */ + 0x00, /* 0x0034 */ + 0x00, /* 0x0035 */ + 0x00, /* 0x0036 */ + 0x00, /* 0x0037 */ + 0x0f, /* MBOX_SET_TARGET_PARAMS */ + 0x0f, /* MBOX_SET_DEV_QUEUE_PARAMS */ + 0x00, /* 0x003a */ + 0x00, /* 0x003b */ + 0x00, /* 0x003c */ + 0x00, /* 0x003d */ + 0x00, /* 0x003e */ + 0x00, /* 0x003f */ + 0x00, /* 0x0040 */ + 0x00, /* 0x0041 */ + 0x00, /* 0x0042 */ + 0x00, /* 0x0043 */ + 0x00, /* 0x0044 */ + 0x00, /* 0x0045 */ + 0x00, /* 0x0046 */ + 0x00, /* 0x0047 */ + 0x00, /* 0x0048 */ + 0x00, /* 0x0049 */ + 0x00, /* 0x004a */ + 0x00, /* 0x004b */ + 0x00, /* 0x004c */ + 0x00, /* 0x004d */ + 0x00, /* 0x004e */ + 0x00, /* 0x004f */ + 0x00, /* 0x0050 */ + 0x00, /* 0x0051 */ + 0x00, /* 0x0052 */ + 0x00, /* 0x0053 */ + 0xcf, /* MBOX_EXECUTE_IOCB64 */ + 0x00, /* 0x0055 */ + 0x00, /* 0x0056 */ + 0x00, /* 0x0057 */ + 0x00, /* 0x0058 */ + 0x00, /* 0x0059 */ + 0x00, /* 0x005a */ + 0x00, /* 0x005b */ + 0x00, /* 0x005c */ + 0x00, /* 0x005d */ + 0x00, /* 0x005e */ + 0x00, /* 0x005f */ + 0xff, /* MBOX_INIT_FIRMWARE */ + 0xcd, /* MBOX_GET_INIT_CB */ + 0x01, /* MBOX_INIT_LIP */ + 0xcd, /* MBOX_GET_POS_MAP */ + 0xcf, /* MBOX_GET_PORT_DB */ + 0x03, /* MBOX_CLEAR_ACA */ + 0x03, /* MBOX_TARGET_RESET */ + 0x03, /* MBOX_CLEAR_TASK_SET */ + 0x03, /* MBOX_ABORT_TASK_SET */ + 0x01, /* MBOX_GET_FIRMWARE_STATE */ + 0x03, /* MBOX_GET_PORT_NAME */ + 0x00, /* 0x006b */ + 0x00, /* 0x006c */ + 0x00, /* 0x006d */ + 0xcf, /* MBOX_SEND_SNS */ + 0x0f, /* MBOX_PORT_LOGIN */ + 0x03, /* MBOX_SEND_CHANGE_REQUEST */ + 0x03, /* MBOX_PORT_LOGOUT */ +}; + +#define MAX_MBOX_COMMAND (sizeof(mbox_param)/sizeof(u_short)) + + +struct id_name_map { + u64 wwn; + u_char loop_id; +}; + +struct sns_cb { + u_short len; + u_short res1; + u_int response_low; + u_int response_high; + u_short sub_len; + u_short res2; + u_char data[44]; +}; + +/* address of instance of this struct is passed to adapter to initialize things + */ +struct init_cb { + u_char version; + u_char reseverd1[1]; + u_short firm_opts; + u_short max_frame_len; + u_short max_iocb; + u_short exec_throttle; + u_char retry_cnt; + u_char retry_delay; + u_short node_name[4]; + u_short hard_addr; + u_char reserved2[10]; + u_short req_queue_out; + u_short res_queue_in; + u_short req_queue_len; + u_short res_queue_len; + u_int req_queue_addr_lo; + u_int req_queue_addr_high; + u_int res_queue_addr_lo; + u_int res_queue_addr_high; + /* the rest of this structure only applies to the isp2200 */ + u_short lun_enables; + u_char cmd_resource_cnt; + u_char notify_resource_cnt; + u_short timeout; + u_short reserved3; + u_short add_firm_opts; + u_char res_accum_timer; + u_char irq_delay_timer; + u_short special_options; + u_short reserved4[13]; +}; + +/* + * The result queue can be quite a bit smaller since continuation entries + * do not show up there: + */ +#define RES_QUEUE_LEN ((QLOGICFC_REQ_QUEUE_LEN + 1) / 8 - 1) +#define QUEUE_ENTRY_LEN 64 + +#if ISP2x00_FABRIC +#define QLOGICFC_MAX_ID 0xff +#else +#define QLOGICFC_MAX_ID 0x7d +#endif + +#define QLOGICFC_MAX_LUN 128 +#define QLOGICFC_MAX_LOOP_ID 0x7d + +/* the following connection options only apply to the 2200. i have only + * had success with LOOP_ONLY and P2P_ONLY. + */ + +#define LOOP_ONLY 0 +#define P2P_ONLY 1 +#define LOOP_PREFERED 2 +#define P2P_PREFERED 3 + +#define CONNECTION_PREFERENCE LOOP_ONLY + +/* adapter_state values */ +#define AS_FIRMWARE_DEAD -1 +#define AS_LOOP_DOWN 0 +#define AS_LOOP_GOOD 1 +#define AS_REDO_FABRIC_PORTDB 2 +#define AS_REDO_LOOP_PORTDB 4 + +#define RES_SIZE ((RES_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN) +#define REQ_SIZE ((QLOGICFC_REQ_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN) + +struct isp2x00_hostdata { + u_char revision; + struct pci_dev *pci_dev; + /* result and request queues (shared with isp2x00): */ + 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? */ + + char * res; + char * req; + struct init_cb control_block; + int adapter_state; + unsigned long int tag_ages[QLOGICFC_MAX_ID + 1]; + Scsi_Cmnd *handle_ptrs[QLOGICFC_REQ_QUEUE_LEN + 1]; + unsigned long handle_serials[QLOGICFC_REQ_QUEUE_LEN + 1]; + struct id_name_map port_db[QLOGICFC_MAX_ID + 1]; + u_char mbox_done; + u64 wwn; + u_int port_id; + u_char queued; + u_char host_id; + struct timer_list explore_timer; + struct id_name_map tempmap[QLOGICFC_MAX_ID + 1]; +}; + + +/* 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, \ + QLOGICFC_REQ_QUEUE_LEN) +#define RES_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, RES_QUEUE_LEN) + +static void isp2x00_enable_irqs(struct Scsi_Host *); +static void isp2x00_disable_irqs(struct Scsi_Host *); +static int isp2x00_init(struct Scsi_Host *); +static int isp2x00_reset_hardware(struct Scsi_Host *); +static int isp2x00_mbox_command(struct Scsi_Host *, u_short[]); +static int isp2x00_return_status(Scsi_Cmnd *, struct Status_Entry *); +static void isp2x00_intr_handler(int, void *, struct pt_regs *); +static irqreturn_t do_isp2x00_intr_handler(int, void *, struct pt_regs *); +static int isp2x00_make_portdb(struct Scsi_Host *); + +#if ISP2x00_FABRIC +static int isp2x00_init_fabric(struct Scsi_Host *, struct id_name_map *, int); +#endif + +#if USE_NVRAM_DEFAULTS +static int isp2x00_get_nvram_defaults(struct Scsi_Host *, struct init_cb *); +static u_short isp2x00_read_nvram_word(struct Scsi_Host *, u_short); +#endif + +#if DEBUG_ISP2x00 +static void isp2x00_print_scsi_cmd(Scsi_Cmnd *); +#endif + +#if DEBUG_ISP2x00_INTR +static void isp2x00_print_status_entry(struct Status_Entry *); +#endif + +static inline void isp2x00_enable_irqs(struct Scsi_Host *host) +{ + outw(ISP_EN_INT | ISP_EN_RISC, host->io_port + PCI_INTER_CTL); +} + + +static inline void isp2x00_disable_irqs(struct Scsi_Host *host) +{ + outw(0x0, host->io_port + PCI_INTER_CTL); +} + + +static int isp2x00_detect(Scsi_Host_Template * tmpt) +{ + int hosts = 0; + unsigned long wait_time; + struct Scsi_Host *host = NULL; + struct isp2x00_hostdata *hostdata; + struct pci_dev *pdev; + unsigned short device_ids[2]; + dma_addr_t busaddr; + int i; + + + ENTER("isp2x00_detect"); + + device_ids[0] = PCI_DEVICE_ID_QLOGIC_ISP2100; + device_ids[1] = PCI_DEVICE_ID_QLOGIC_ISP2200; + + tmpt->proc_name = "isp2x00"; + + for (i=0; i<2; i++){ + pdev = NULL; + while ((pdev = pci_find_device(PCI_VENDOR_ID_QLOGIC, device_ids[i], pdev))) { + if (pci_enable_device(pdev)) + continue; + + /* Try to configure DMA attributes. */ + if (pci_set_dma_mask(pdev, 0xffffffffffffffffULL) && + pci_set_dma_mask(pdev, 0xffffffffULL)) + continue; + + host = scsi_register(tmpt, sizeof(struct isp2x00_hostdata)); + if (!host) { + printk("qlogicfc%d : could not register host.\n", hosts); + continue; + } + scsi_set_device(host, &pdev->dev); + host->max_id = QLOGICFC_MAX_ID + 1; + host->max_lun = QLOGICFC_MAX_LUN; + hostdata = (struct isp2x00_hostdata *) host->hostdata; + + memset(hostdata, 0, sizeof(struct isp2x00_hostdata)); + hostdata->pci_dev = pdev; + hostdata->res = pci_alloc_consistent(pdev, RES_SIZE + REQ_SIZE, &busaddr); + + if (!hostdata->res){ + printk("qlogicfc%d : could not allocate memory for request and response queue.\n", hosts); + scsi_unregister(host); + continue; + } + hostdata->req = hostdata->res + (RES_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN; + hostdata->queued = 0; + /* set up the control block */ + hostdata->control_block.version = 0x1; + hostdata->control_block.firm_opts = cpu_to_le16(0x800e); + hostdata->control_block.max_frame_len = cpu_to_le16(2048); + hostdata->control_block.max_iocb = cpu_to_le16(QLOGICFC_REQ_QUEUE_LEN); + hostdata->control_block.exec_throttle = cpu_to_le16(QLOGICFC_CMD_PER_LUN); + hostdata->control_block.retry_delay = 5; + hostdata->control_block.retry_cnt = 1; + hostdata->control_block.node_name[0] = cpu_to_le16(0x0020); + hostdata->control_block.node_name[1] = cpu_to_le16(0xE000); + hostdata->control_block.node_name[2] = cpu_to_le16(0x008B); + hostdata->control_block.node_name[3] = cpu_to_le16(0x0000); + hostdata->control_block.hard_addr = cpu_to_le16(0x0003); + hostdata->control_block.req_queue_len = cpu_to_le16(QLOGICFC_REQ_QUEUE_LEN + 1); + hostdata->control_block.res_queue_len = cpu_to_le16(RES_QUEUE_LEN + 1); + hostdata->control_block.res_queue_addr_lo = cpu_to_le32(pci64_dma_lo32(busaddr)); + hostdata->control_block.res_queue_addr_high = cpu_to_le32(pci64_dma_hi32(busaddr)); + hostdata->control_block.req_queue_addr_lo = cpu_to_le32(pci64_dma_lo32(busaddr + RES_SIZE)); + hostdata->control_block.req_queue_addr_high = cpu_to_le32(pci64_dma_hi32(busaddr + RES_SIZE)); + + + hostdata->control_block.add_firm_opts |= cpu_to_le16(CONNECTION_PREFERENCE<<4); + hostdata->adapter_state = AS_LOOP_DOWN; + hostdata->explore_timer.data = 1; + hostdata->host_id = hosts; + + if (isp2x00_init(host) || isp2x00_reset_hardware(host)) { + pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr); + scsi_unregister(host); + continue; + } + host->this_id = 0; + + if (request_irq(host->irq, do_isp2x00_intr_handler, SA_INTERRUPT | SA_SHIRQ, "qlogicfc", host)) { + printk("qlogicfc%d : interrupt %d already in use\n", + hostdata->host_id, host->irq); + pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr); + scsi_unregister(host); + continue; + } + if (!request_region(host->io_port, 0xff, "qlogicfc")) { + printk("qlogicfc%d : i/o region 0x%lx-0x%lx already " + "in use\n", + hostdata->host_id, host->io_port, host->io_port + 0xff); + free_irq(host->irq, host); + pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr); + scsi_unregister(host); + continue; + } + + outw(0x0, host->io_port + PCI_SEMAPHORE); + outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR); + isp2x00_enable_irqs(host); + /* wait for the loop to come up */ + for (wait_time = jiffies + 10 * HZ; time_before(jiffies, wait_time) && hostdata->adapter_state == AS_LOOP_DOWN;) { + barrier(); + cpu_relax(); + } + if (hostdata->adapter_state == AS_LOOP_DOWN) { + printk("qlogicfc%d : link is not up\n", hostdata->host_id); + } + hosts++; + hostdata->explore_timer.data = 0; + } + } + + + /* this busy loop should not be needed but the isp2x00 seems to need + some time before recognizing it is attached to a fabric */ + +#if ISP2x00_FABRIC + if (hosts) { + for (wait_time = jiffies + 5 * HZ; time_before(jiffies, wait_time);) { + barrier(); + cpu_relax(); + } + } +#endif + + LEAVE("isp2x00_detect"); + + return hosts; +} + + +static int isp2x00_make_portdb(struct Scsi_Host *host) +{ + + short param[8]; + int i, j; + struct isp2x00_hostdata *hostdata; + + isp2x00_disable_irqs(host); + + hostdata = (struct isp2x00_hostdata *) host->hostdata; + memset(hostdata->tempmap, 0, sizeof(hostdata->tempmap)); + +#if ISP2x00_FABRIC + for (i = 0x81; i < QLOGICFC_MAX_ID; i++) { + param[0] = MBOX_PORT_LOGOUT; + param[1] = i << 8; + param[2] = 0; + param[3] = 0; + + isp2x00_mbox_command(host, param); + + if (param[0] != MBOX_COMMAND_COMPLETE) { + + DEBUG_FABRIC(printk("qlogicfc%d : logout failed %x %x\n", hostdata->host_id, i, param[0])); + } + } +#endif + + + param[0] = MBOX_GET_INIT_SCSI_ID; + + isp2x00_mbox_command(host, param); + + if (param[0] == MBOX_COMMAND_COMPLETE) { + hostdata->port_id = ((u_int) param[3]) << 16; + hostdata->port_id |= param[2]; + hostdata->tempmap[0].loop_id = param[1]; + hostdata->tempmap[0].wwn = hostdata->wwn; + } + else { + printk("qlogicfc%d : error getting scsi id.\n", hostdata->host_id); + } + + for (i = 0; i <=QLOGICFC_MAX_ID; i++) + hostdata->tempmap[i].loop_id = hostdata->tempmap[0].loop_id; + + for (i = 0, j = 1; i <= QLOGICFC_MAX_LOOP_ID; i++) { + param[0] = MBOX_GET_PORT_NAME; + param[1] = (i << 8) & 0xff00; + + isp2x00_mbox_command(host, param); + + if (param[0] == MBOX_COMMAND_COMPLETE) { + hostdata->tempmap[j].loop_id = i; + hostdata->tempmap[j].wwn = ((u64) (param[2] & 0xff)) << 56; + hostdata->tempmap[j].wwn |= ((u64) ((param[2] >> 8) & 0xff)) << 48; + hostdata->tempmap[j].wwn |= ((u64) (param[3] & 0xff)) << 40; + hostdata->tempmap[j].wwn |= ((u64) ((param[3] >> 8) & 0xff)) << 32; + hostdata->tempmap[j].wwn |= ((u64) (param[6] & 0xff)) << 24; + hostdata->tempmap[j].wwn |= ((u64) ((param[6] >> 8) & 0xff)) << 16; + hostdata->tempmap[j].wwn |= ((u64) (param[7] & 0xff)) << 8; + hostdata->tempmap[j].wwn |= ((u64) ((param[7] >> 8) & 0xff)); + + j++; + + } + } + + +#if ISP2x00_FABRIC + isp2x00_init_fabric(host, hostdata->tempmap, j); +#endif + + for (i = 0; i <= QLOGICFC_MAX_ID; i++) { + if (hostdata->tempmap[i].wwn != hostdata->port_db[i].wwn) { + for (j = 0; j <= QLOGICFC_MAX_ID; j++) { + if (hostdata->tempmap[j].wwn == hostdata->port_db[i].wwn) { + hostdata->port_db[i].loop_id = hostdata->tempmap[j].loop_id; + break; + } + } + if (j == QLOGICFC_MAX_ID + 1) + hostdata->port_db[i].loop_id = hostdata->tempmap[0].loop_id; + + for (j = 0; j <= QLOGICFC_MAX_ID; j++) { + if (hostdata->port_db[j].wwn == hostdata->tempmap[i].wwn || !hostdata->port_db[j].wwn) { + break; + } + } + if (j == QLOGICFC_MAX_ID + 1) + printk("qlogicfc%d : Too many scsi devices, no more room in port map.\n", hostdata->host_id); + if (!hostdata->port_db[j].wwn) { + hostdata->port_db[j].loop_id = hostdata->tempmap[i].loop_id; + hostdata->port_db[j].wwn = hostdata->tempmap[i].wwn; + } + } else + hostdata->port_db[i].loop_id = hostdata->tempmap[i].loop_id; + + } + + isp2x00_enable_irqs(host); + + return 0; +} + + +#if ISP2x00_FABRIC + +#define FABRIC_PORT 0x7e +#define FABRIC_CONTROLLER 0x7f +#define FABRIC_SNS 0x80 + +int isp2x00_init_fabric(struct Scsi_Host *host, struct id_name_map *port_db, int cur_scsi_id) +{ + + u_short param[8]; + u64 wwn; + int done = 0; + u_short loop_id = 0x81; + u_short scsi_id = cur_scsi_id; + u_int port_id; + struct sns_cb *req; + u_char *sns_response; + dma_addr_t busaddr; + struct isp2x00_hostdata *hostdata; + + hostdata = (struct isp2x00_hostdata *) host->hostdata; + + DEBUG_FABRIC(printk("qlogicfc%d : Checking for a fabric.\n", hostdata->host_id)); + param[0] = MBOX_GET_PORT_NAME; + param[1] = (u16)FABRIC_PORT << 8; + + isp2x00_mbox_command(host, param); + + if (param[0] != MBOX_COMMAND_COMPLETE) { + DEBUG_FABRIC(printk("qlogicfc%d : fabric check result %x\n", hostdata->host_id, param[0])); + return 0; + } + printk("qlogicfc%d : Fabric found.\n", hostdata->host_id); + + req = (struct sns_cb *)pci_alloc_consistent(hostdata->pci_dev, sizeof(*req) + 608, &busaddr); + + if (!req){ + printk("qlogicfc%d : Could not allocate DMA resources for fabric initialization\n", hostdata->host_id); + return 0; + } + sns_response = (u_char *)(req + 1); + + if (hostdata->adapter_state & AS_REDO_LOOP_PORTDB){ + memset(req, 0, sizeof(*req)); + + req->len = cpu_to_le16(8); + req->response_low = cpu_to_le32(pci64_dma_lo32(busaddr + sizeof(*req))); + req->response_high = cpu_to_le32(pci64_dma_hi32(busaddr + sizeof(*req))); + req->sub_len = cpu_to_le16(22); + req->data[0] = 0x17; + req->data[1] = 0x02; + req->data[8] = (u_char) (hostdata->port_id & 0xff); + req->data[9] = (u_char) (hostdata->port_id >> 8 & 0xff); + req->data[10] = (u_char) (hostdata->port_id >> 16 & 0xff); + req->data[13] = 0x01; + param[0] = MBOX_SEND_SNS; + param[1] = 30; + param[2] = pci64_dma_lo32(busaddr) >> 16; + param[3] = pci64_dma_lo32(busaddr); + param[6] = pci64_dma_hi32(busaddr) >> 16; + param[7] = pci64_dma_hi32(busaddr); + + isp2x00_mbox_command(host, param); + + if (param[0] != MBOX_COMMAND_COMPLETE) + printk("qlogicfc%d : error sending RFC-4\n", hostdata->host_id); + } + + port_id = hostdata->port_id; + while (!done) { + memset(req, 0, sizeof(*req)); + + req->len = cpu_to_le16(304); + req->response_low = cpu_to_le32(pci64_dma_lo32(busaddr + sizeof(*req))); + req->response_high = cpu_to_le32(pci64_dma_hi32(busaddr + sizeof(*req))); + req->sub_len = cpu_to_le16(6); + req->data[0] = 0x00; + req->data[1] = 0x01; + req->data[8] = (u_char) (port_id & 0xff); + req->data[9] = (u_char) (port_id >> 8 & 0xff); + req->data[10] = (u_char) (port_id >> 16 & 0xff); + + param[0] = MBOX_SEND_SNS; + param[1] = 14; + param[2] = pci64_dma_lo32(busaddr) >> 16; + param[3] = pci64_dma_lo32(busaddr); + param[6] = pci64_dma_hi32(busaddr) >> 16; + param[7] = pci64_dma_hi32(busaddr); + + isp2x00_mbox_command(host, param); + + if (param[0] == MBOX_COMMAND_COMPLETE) { + DEBUG_FABRIC(printk("qlogicfc%d : found node %02x%02x%02x%02x%02x%02x%02x%02x ", hostdata->host_id, sns_response[20], sns_response[21], sns_response[22], sns_response[23], sns_response[24], sns_response[25], sns_response[26], sns_response[27])); + DEBUG_FABRIC(printk(" port id: %02x%02x%02x\n", sns_response[17], sns_response[18], sns_response[19])); + port_id = ((u_int) sns_response[17]) << 16; + port_id |= ((u_int) sns_response[18]) << 8; + port_id |= ((u_int) sns_response[19]); + wwn = ((u64) sns_response[20]) << 56; + wwn |= ((u64) sns_response[21]) << 48; + wwn |= ((u64) sns_response[22]) << 40; + wwn |= ((u64) sns_response[23]) << 32; + wwn |= ((u64) sns_response[24]) << 24; + wwn |= ((u64) sns_response[25]) << 16; + wwn |= ((u64) sns_response[26]) << 8; + wwn |= ((u64) sns_response[27]); + if (hostdata->port_id >> 8 != port_id >> 8) { + DEBUG_FABRIC(printk("qlogicfc%d : adding a fabric port: %x\n", hostdata->host_id, port_id)); + param[0] = MBOX_PORT_LOGIN; + param[1] = loop_id << 8; + param[2] = (u_short) (port_id >> 16); + param[3] = (u_short) (port_id); + + isp2x00_mbox_command(host, param); + + if (param[0] == MBOX_COMMAND_COMPLETE) { + port_db[scsi_id].wwn = wwn; + port_db[scsi_id].loop_id = loop_id; + loop_id++; + scsi_id++; + } else { + printk("qlogicfc%d : Error performing port login %x\n", hostdata->host_id, param[0]); + DEBUG_FABRIC(printk("qlogicfc%d : loop_id: %x\n", hostdata->host_id, loop_id)); + param[0] = MBOX_PORT_LOGOUT; + param[1] = loop_id << 8; + param[2] = 0; + param[3] = 0; + + isp2x00_mbox_command(host, param); + + } + + } + if (hostdata->port_id == port_id) + done = 1; + } else { + printk("qlogicfc%d : Get All Next failed %x.\n", hostdata->host_id, param[0]); + pci_free_consistent(hostdata->pci_dev, sizeof(*req) + 608, req, busaddr); + return 0; + } + } + + pci_free_consistent(hostdata->pci_dev, sizeof(*req) + 608, req, busaddr); + return 1; +} + +#endif /* ISP2x00_FABRIC */ + + +static int isp2x00_release(struct Scsi_Host *host) +{ + struct isp2x00_hostdata *hostdata; + dma_addr_t busaddr; + + ENTER("isp2x00_release"); + + hostdata = (struct isp2x00_hostdata *) host->hostdata; + + outw(0x0, host->io_port + PCI_INTER_CTL); + free_irq(host->irq, host); + + release_region(host->io_port, 0xff); + + busaddr = pci64_dma_build(le32_to_cpu(hostdata->control_block.res_queue_addr_high), + le32_to_cpu(hostdata->control_block.res_queue_addr_lo)); + pci_free_consistent(hostdata->pci_dev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr); + + LEAVE("isp2x00_release"); + + return 0; +} + + +static const char *isp2x00_info(struct Scsi_Host *host) +{ + static char buf[80]; + struct isp2x00_hostdata *hostdata; + ENTER("isp2x00_info"); + + hostdata = (struct isp2x00_hostdata *) host->hostdata; + sprintf(buf, + "QLogic ISP%04x SCSI on PCI bus %02x device %02x irq %d base 0x%lx", + hostdata->pci_dev->device, hostdata->pci_dev->bus->number, hostdata->pci_dev->devfn, host->irq, + host->io_port); + + + LEAVE("isp2x00_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 isp2x00_queuecommand(Scsi_Cmnd * Cmnd, void (*done) (Scsi_Cmnd *)) +{ + int i, sg_count, 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 isp2x00_hostdata *hostdata; + + ENTER("isp2x00_queuecommand"); + + host = Cmnd->device->host; + hostdata = (struct isp2x00_hostdata *) host->hostdata; + Cmnd->scsi_done = done; + + DEBUG(isp2x00_print_scsi_cmd(Cmnd)); + + if (hostdata->adapter_state & AS_REDO_FABRIC_PORTDB || hostdata->adapter_state & AS_REDO_LOOP_PORTDB) { + isp2x00_make_portdb(host); + hostdata->adapter_state = AS_LOOP_GOOD; + printk("qlogicfc%d : Port Database\n", hostdata->host_id); + for (i = 0; hostdata->port_db[i].wwn != 0; i++) { + printk("wwn: %08x%08x scsi_id: %x loop_id: ", (u_int) (hostdata->port_db[i].wwn >> 32), (u_int) hostdata->port_db[i].wwn, i); + if (hostdata->port_db[i].loop_id != hostdata->port_db[0].loop_id || i == 0) + printk("%x", hostdata->port_db[i].loop_id); + else + printk("Not Available"); + printk("\n"); + } + } + if (hostdata->adapter_state == AS_FIRMWARE_DEAD) { + printk("qlogicfc%d : The firmware is dead, just return.\n", hostdata->host_id); + host->max_id = 0; + return 0; + } + + out_ptr = inw(host->io_port + MBOX4); + in_ptr = hostdata->req_in_ptr; + + DEBUG(printk("qlogicfc%d : request queue depth %d\n", hostdata->host_id, + REQ_QUEUE_DEPTH(in_ptr, out_ptr))); + + cmd = (struct Command_Entry *) &hostdata->req[in_ptr*QUEUE_ENTRY_LEN]; + in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN; + if (in_ptr == out_ptr) { + DEBUG(printk("qlogicfc%d : request queue overflow\n", hostdata->host_id)); + return 1; + } + if (hostdata->send_marker) { + struct Marker_Entry *marker; + + TRACE("queue marker", in_ptr, 0); + + DEBUG(printk("qlogicfc%d : adding marker entry\n", hostdata->host_id)); + 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) & QLOGICFC_REQ_QUEUE_LEN) == out_ptr) { + outw(in_ptr, host->io_port + MBOX4); + hostdata->req_in_ptr = in_ptr; + DEBUG(printk("qlogicfc%d : request queue overflow\n", hostdata->host_id)); + return 1; + } + cmd = (struct Command_Entry *) &hostdata->req[in_ptr*QUEUE_ENTRY_LEN]; + in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN; + } + TRACE("queue command", in_ptr, Cmnd); + + memset(cmd, 0, sizeof(struct Command_Entry)); + + /* find a free handle mapping slot */ + for (i = in_ptr; i != (in_ptr - 1) && hostdata->handle_ptrs[i]; i = ((i + 1) % (QLOGICFC_REQ_QUEUE_LEN + 1))); + + if (!hostdata->handle_ptrs[i]) { + cmd->handle = cpu_to_le32(i); + hostdata->handle_ptrs[i] = Cmnd; + hostdata->handle_serials[i] = Cmnd->serial_number; + } else { + printk("qlogicfc%d : no handle slots, this should not happen.\n", hostdata->host_id); + printk("hostdata->queued is %x, in_ptr: %x\n", hostdata->queued, in_ptr); + for (i = 0; i <= QLOGICFC_REQ_QUEUE_LEN; i++){ + if (!hostdata->handle_ptrs[i]){ + printk("slot %d has %p\n", i, hostdata->handle_ptrs[i]); + } + } + return 1; + } + + cmd->hdr.entry_type = ENTRY_COMMAND; + cmd->hdr.entry_cnt = 1; + cmd->target_lun = Cmnd->device->lun; + cmd->expanded_lun = cpu_to_le16(Cmnd->device->lun); +#if ISP2x00_PORTDB + cmd->target_id = hostdata->port_db[Cmnd->device->id].loop_id; +#else + cmd->target_id = Cmnd->target; +#endif + cmd->total_byte_cnt = cpu_to_le32(Cmnd->request_bufflen); + cmd->time_out = 0; + memcpy(cmd->cdb, Cmnd->cmnd, Cmnd->cmd_len); + + if (Cmnd->use_sg) { + sg = (struct scatterlist *) Cmnd->request_buffer; + sg_count = pci_map_sg(hostdata->pci_dev, sg, Cmnd->use_sg, scsi_to_pci_dma_dir(Cmnd->sc_data_direction)); + cmd->segment_cnt = cpu_to_le16(sg_count); + ds = cmd->dataseg; + /* fill in first two sg entries: */ + n = sg_count; + if (n > DATASEGS_PER_COMMAND) + n = DATASEGS_PER_COMMAND; + + for (i = 0; i < n; i++) { + ds[i].d_base = cpu_to_le32(pci64_dma_lo32(sg_dma_address(sg))); + ds[i].d_base_hi = cpu_to_le32(pci64_dma_hi32(sg_dma_address(sg))); + ds[i].d_count = cpu_to_le32(sg_dma_len(sg)); + ++sg; + } + sg_count -= DATASEGS_PER_COMMAND; + + while (sg_count > 0) { + ++cmd->hdr.entry_cnt; + cont = (struct Continuation_Entry *) + &hostdata->req[in_ptr*QUEUE_ENTRY_LEN]; + memset(cont, 0, sizeof(struct Continuation_Entry)); + in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN; + if (in_ptr == out_ptr) { + DEBUG(printk("qlogicfc%d : unexpected request queue overflow\n", hostdata->host_id)); + return 1; + } + TRACE("queue continuation", in_ptr, 0); + cont->hdr.entry_type = ENTRY_CONTINUATION; + ds = cont->dataseg; + n = sg_count; + if (n > DATASEGS_PER_CONT) + n = DATASEGS_PER_CONT; + for (i = 0; i < n; ++i) { + ds[i].d_base = cpu_to_le32(pci64_dma_lo32(sg_dma_address(sg))); + ds[i].d_base_hi = cpu_to_le32(pci64_dma_hi32(sg_dma_address(sg))); + ds[i].d_count = cpu_to_le32(sg_dma_len(sg)); + ++sg; + } + sg_count -= n; + } + } else if (Cmnd->request_bufflen && Cmnd->sc_data_direction != PCI_DMA_NONE) { + struct page *page = virt_to_page(Cmnd->request_buffer); + unsigned long offset = offset_in_page(Cmnd->request_buffer); + dma_addr_t busaddr = pci_map_page(hostdata->pci_dev, + page, offset, + Cmnd->request_bufflen, + scsi_to_pci_dma_dir(Cmnd->sc_data_direction)); + Cmnd->SCp.dma_handle = busaddr; + + cmd->dataseg[0].d_base = cpu_to_le32(pci64_dma_lo32(busaddr)); + cmd->dataseg[0].d_base_hi = cpu_to_le32(pci64_dma_hi32(busaddr)); + cmd->dataseg[0].d_count = cpu_to_le32(Cmnd->request_bufflen); + cmd->segment_cnt = cpu_to_le16(1); + } else { + cmd->dataseg[0].d_base = 0; + cmd->dataseg[0].d_base_hi = 0; + cmd->segment_cnt = cpu_to_le16(1); /* Shouldn't this be 0? */ + } + + if (Cmnd->sc_data_direction == SCSI_DATA_WRITE) + cmd->control_flags = cpu_to_le16(CFLAG_WRITE); + else + cmd->control_flags = cpu_to_le16(CFLAG_READ); + + if (Cmnd->device->tagged_supported) { + if ((jiffies - hostdata->tag_ages[Cmnd->device->id]) > (2 * ISP_TIMEOUT)) { + cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG); + hostdata->tag_ages[Cmnd->device->id] = jiffies; + } else + switch (Cmnd->tag) { + case HEAD_OF_QUEUE_TAG: + cmd->control_flags |= cpu_to_le16(CFLAG_HEAD_TAG); + break; + case ORDERED_QUEUE_TAG: + cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG); + break; + default: + cmd->control_flags |= cpu_to_le16(CFLAG_SIMPLE_TAG); + break; + } + } + /* + * TEST_UNIT_READY commands from scsi_scan will fail due to "overlapped + * commands attempted" unless we setup at least a simple queue (midlayer + * will embelish this once it can do an INQUIRY command to the device) + */ + else + cmd->control_flags |= cpu_to_le16(CFLAG_SIMPLE_TAG); + outw(in_ptr, host->io_port + MBOX4); + hostdata->req_in_ptr = in_ptr; + + hostdata->queued++; + + num_free = QLOGICFC_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr); + num_free = (num_free > 2) ? num_free - 2 : 0; + host->can_queue = host->host_busy + num_free; + if (host->can_queue > QLOGICFC_REQ_QUEUE_LEN) + host->can_queue = QLOGICFC_REQ_QUEUE_LEN; + host->sg_tablesize = QLOGICFC_MAX_SG(num_free); + + LEAVE("isp2x00_queuecommand"); + + return 0; +} + + +/* we have received an event, such as a lip or an RSCN, which may mean that + * our port database is incorrect so the port database must be recreated. + */ +static void redo_port_db(unsigned long arg) +{ + + struct Scsi_Host * host = (struct Scsi_Host *) arg; + struct isp2x00_hostdata * hostdata; + unsigned long flags; + int i; + + hostdata = (struct isp2x00_hostdata *) host->hostdata; + hostdata->explore_timer.data = 0; + del_timer(&hostdata->explore_timer); + + spin_lock_irqsave(host->host_lock, flags); + + if (hostdata->adapter_state & AS_REDO_FABRIC_PORTDB || hostdata->adapter_state & AS_REDO_LOOP_PORTDB) { + isp2x00_make_portdb(host); + printk("qlogicfc%d : Port Database\n", hostdata->host_id); + for (i = 0; hostdata->port_db[i].wwn != 0; i++) { + printk("wwn: %08x%08x scsi_id: %x loop_id: ", (u_int) (hostdata->port_db[i].wwn >> 32), (u_int) hostdata->port_db[i].wwn, i); + if (hostdata->port_db[i].loop_id != hostdata->port_db[0].loop_id || i == 0) + printk("%x", hostdata->port_db[i].loop_id); + else + printk("Not Available"); + printk("\n"); + } + + for (i = 0; i < QLOGICFC_REQ_QUEUE_LEN; i++){ + if (hostdata->handle_ptrs[i] && (hostdata->port_db[hostdata->handle_ptrs[i]->device->id].loop_id > QLOGICFC_MAX_LOOP_ID || hostdata->adapter_state & AS_REDO_LOOP_PORTDB)){ + if (hostdata->port_db[hostdata->handle_ptrs[i]->device->id].loop_id != hostdata->port_db[0].loop_id){ + Scsi_Cmnd *Cmnd = hostdata->handle_ptrs[i]; + + if (Cmnd->use_sg) + pci_unmap_sg(hostdata->pci_dev, + (struct scatterlist *)Cmnd->buffer, + Cmnd->use_sg, + scsi_to_pci_dma_dir(Cmnd->sc_data_direction)); + else if (Cmnd->request_bufflen && + Cmnd->sc_data_direction != PCI_DMA_NONE) { + pci_unmap_page(hostdata->pci_dev, + Cmnd->SCp.dma_handle, + Cmnd->request_bufflen, + scsi_to_pci_dma_dir(Cmnd->sc_data_direction)); + } + + hostdata->handle_ptrs[i]->result = DID_SOFT_ERROR << 16; + + if (hostdata->handle_ptrs[i]->scsi_done){ + (*hostdata->handle_ptrs[i]->scsi_done) (hostdata->handle_ptrs[i]); + } + else printk("qlogicfc%d : done is null?\n", hostdata->host_id); + hostdata->handle_ptrs[i] = NULL; + hostdata->handle_serials[i] = 0; + } + } + } + + hostdata->adapter_state = AS_LOOP_GOOD; + } + + spin_unlock_irqrestore(host->host_lock, flags); + +} + +#define ASYNC_EVENT_INTERRUPT 0x01 + +irqreturn_t do_isp2x00_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); + isp2x00_intr_handler(irq, dev_id, regs); + spin_unlock_irqrestore(host->host_lock, flags); + + return IRQ_HANDLED; +} + +void isp2x00_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 isp2x00_hostdata *hostdata; + u_int in_ptr, out_ptr, handle, num_free; + u_short status; + + ENTER_INTR("isp2x00_intr_handler"); + + hostdata = (struct isp2x00_hostdata *) host->hostdata; + + DEBUG_INTR(printk("qlogicfc%d : interrupt on line %d\n", hostdata->host_id, irq)); + + if (!(inw(host->io_port + PCI_INTER_STS) & 0x08)) { + /* spurious interrupts can happen legally */ + DEBUG_INTR(printk("qlogicfc%d : got spurious interrupt\n", hostdata->host_id)); + return; + } + in_ptr = inw(host->io_port + MBOX5); + out_ptr = hostdata->res_out_ptr; + + if ((inw(host->io_port + PCI_SEMAPHORE) & ASYNC_EVENT_INTERRUPT)) { + status = inw(host->io_port + MBOX0); + + DEBUG_INTR(printk("qlogicfc%d : mbox completion status: %x\n", + hostdata->host_id, status)); + + switch (status) { + case LOOP_UP: + case POINT_TO_POINT_UP: + printk("qlogicfc%d : Link is Up\n", hostdata->host_id); + hostdata->adapter_state = AS_REDO_FABRIC_PORTDB | AS_REDO_LOOP_PORTDB; + break; + case LOOP_DOWN: + printk("qlogicfc%d : Link is Down\n", hostdata->host_id); + hostdata->adapter_state = AS_LOOP_DOWN; + break; + case CONNECTION_MODE: + printk("received CONNECTION_MODE irq %x\n", inw(host->io_port + MBOX1)); + break; + case CHANGE_NOTIFICATION: + printk("qlogicfc%d : RSCN Received\n", hostdata->host_id); + if (hostdata->adapter_state == AS_LOOP_GOOD) + hostdata->adapter_state = AS_REDO_FABRIC_PORTDB; + break; + case LIP_OCCURRED: + case LIP_RECEIVED: + printk("qlogicfc%d : Loop Reinitialized\n", hostdata->host_id); + if (hostdata->adapter_state == AS_LOOP_GOOD) + hostdata->adapter_state = AS_REDO_LOOP_PORTDB; + break; + case SYSTEM_ERROR: + printk("qlogicfc%d : The firmware just choked.\n", hostdata->host_id); + hostdata->adapter_state = AS_FIRMWARE_DEAD; + break; + case SCSI_COMMAND_COMPLETE: + handle = inw(host->io_port + MBOX1) | (inw(host->io_port + MBOX2) << 16); + Cmnd = hostdata->handle_ptrs[handle]; + hostdata->handle_ptrs[handle] = NULL; + hostdata->handle_serials[handle] = 0; + hostdata->queued--; + if (Cmnd != NULL) { + if (Cmnd->use_sg) + pci_unmap_sg(hostdata->pci_dev, + (struct scatterlist *)Cmnd->buffer, + Cmnd->use_sg, + scsi_to_pci_dma_dir(Cmnd->sc_data_direction)); + else if (Cmnd->request_bufflen && + Cmnd->sc_data_direction != PCI_DMA_NONE) + pci_unmap_page(hostdata->pci_dev, + Cmnd->SCp.dma_handle, + Cmnd->request_bufflen, + scsi_to_pci_dma_dir(Cmnd->sc_data_direction)); + Cmnd->result = 0x0; + (*Cmnd->scsi_done) (Cmnd); + } else + printk("qlogicfc%d.c : got a null value out of handle_ptrs, this sucks\n", hostdata->host_id); + break; + case MBOX_COMMAND_COMPLETE: + case INVALID_COMMAND: + case HOST_INTERFACE_ERROR: + case TEST_FAILED: + case COMMAND_ERROR: + case COMMAND_PARAM_ERROR: + case PORT_ID_USED: + case LOOP_ID_USED: + case ALL_IDS_USED: + hostdata->mbox_done = 1; + outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR); + return; + default: + printk("qlogicfc%d : got an unknown status? %x\n", hostdata->host_id, status); + } + if ((hostdata->adapter_state & AS_REDO_LOOP_PORTDB || hostdata->adapter_state & AS_REDO_FABRIC_PORTDB) && hostdata->explore_timer.data == 0){ + hostdata->explore_timer.function = redo_port_db; + hostdata->explore_timer.data = (unsigned long)host; + hostdata->explore_timer.expires = jiffies + (HZ/4); + init_timer(&hostdata->explore_timer); + add_timer(&hostdata->explore_timer); + } + outw(0x0, host->io_port + PCI_SEMAPHORE); + } else { + DEBUG_INTR(printk("qlogicfc%d : response queue update\n", hostdata->host_id)); + DEBUG_INTR(printk("qlogicfc%d : response queue depth %d\n", hostdata->host_id, RES_QUEUE_DEPTH(in_ptr, out_ptr))); + + while (out_ptr != in_ptr) { + unsigned le_hand; + sts = (struct Status_Entry *) &hostdata->res[out_ptr*QUEUE_ENTRY_LEN]; + out_ptr = (out_ptr + 1) & RES_QUEUE_LEN; + + TRACE("done", out_ptr, Cmnd); + DEBUG_INTR(isp2x00_print_status_entry(sts)); + le_hand = le32_to_cpu(sts->handle); + if (sts->hdr.entry_type == ENTRY_STATUS && (Cmnd = hostdata->handle_ptrs[le_hand])) { + Cmnd->result = isp2x00_return_status(Cmnd, sts); + hostdata->queued--; + + if (Cmnd->use_sg) + pci_unmap_sg(hostdata->pci_dev, + (struct scatterlist *)Cmnd->buffer, Cmnd->use_sg, + scsi_to_pci_dma_dir(Cmnd->sc_data_direction)); + else if (Cmnd->request_bufflen && Cmnd->sc_data_direction != PCI_DMA_NONE) + pci_unmap_page(hostdata->pci_dev, + Cmnd->SCp.dma_handle, + Cmnd->request_bufflen, + scsi_to_pci_dma_dir(Cmnd->sc_data_direction)); + + /* + * if any of the following are true we do not + * call scsi_done. if the status is CS_ABORTED + * we don't have to call done because the upper + * level should already know its aborted. + */ + if (hostdata->handle_serials[le_hand] != Cmnd->serial_number + || le16_to_cpu(sts->completion_status) == CS_ABORTED){ + hostdata->handle_serials[le_hand] = 0; + hostdata->handle_ptrs[le_hand] = NULL; + outw(out_ptr, host->io_port + MBOX5); + continue; + } + /* + * if we get back an error indicating the port + * is not there or if the link is down and + * this is a device that used to be there + * allow the command to timeout. + * the device may well be back in a couple of + * seconds. + */ + if ((hostdata->adapter_state == AS_LOOP_DOWN || sts->completion_status == cpu_to_le16(CS_PORT_UNAVAILABLE) || sts->completion_status == cpu_to_le16(CS_PORT_LOGGED_OUT) || sts->completion_status == cpu_to_le16(CS_PORT_CONFIG_CHANGED)) && hostdata->port_db[Cmnd->device->id].wwn){ + outw(out_ptr, host->io_port + MBOX5); + continue; + } + } else { + outw(out_ptr, host->io_port + MBOX5); + continue; + } + + hostdata->handle_ptrs[le_hand] = NULL; + + if (sts->completion_status == cpu_to_le16(CS_RESET_OCCURRED) + || (sts->status_flags & cpu_to_le16(STF_BUS_RESET))) + hostdata->send_marker = 1; + + if (le16_to_cpu(sts->scsi_status) & 0x0200) + memcpy(Cmnd->sense_buffer, sts->req_sense_data, + sizeof(Cmnd->sense_buffer)); + + outw(out_ptr, host->io_port + MBOX5); + + if (Cmnd->scsi_done != NULL) { + (*Cmnd->scsi_done) (Cmnd); + } else + printk("qlogicfc%d : Ouch, scsi done is NULL\n", hostdata->host_id); + } + hostdata->res_out_ptr = out_ptr; + } + + + out_ptr = inw(host->io_port + MBOX4); + in_ptr = hostdata->req_in_ptr; + + num_free = QLOGICFC_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr); + num_free = (num_free > 2) ? num_free - 2 : 0; + host->can_queue = host->host_busy + num_free; + if (host->can_queue > QLOGICFC_REQ_QUEUE_LEN) + host->can_queue = QLOGICFC_REQ_QUEUE_LEN; + host->sg_tablesize = QLOGICFC_MAX_SG(num_free); + + outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR); + LEAVE_INTR("isp2x00_intr_handler"); +} + + +static int isp2x00_return_status(Scsi_Cmnd *Cmnd, struct Status_Entry *sts) +{ + int host_status = DID_ERROR; +#if DEBUG_ISP2x00_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_ISP2x00_INTR */ + + ENTER("isp2x00_return_status"); + + DEBUG(printk("qlogicfc : 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_DMA_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: + host_status = DID_ERROR; + break; + case CS_DATA_UNDERRUN: + if (Cmnd->underflow <= (Cmnd->request_bufflen - le32_to_cpu(sts->residual))) + host_status = DID_OK; + else + host_status = DID_ERROR; + break; + case CS_PORT_UNAVAILABLE: + case CS_PORT_LOGGED_OUT: + case CS_PORT_CONFIG_CHANGED: + host_status = DID_BAD_TARGET; + break; + case CS_QUEUE_FULL: + host_status = DID_ERROR; + break; + default: + printk("qlogicfc : unknown completion status 0x%04x\n", + le16_to_cpu(sts->completion_status)); + host_status = DID_ERROR; + break; + } + + DEBUG_INTR(printk("qlogicfc : host status (%s) scsi status %x\n", + reason[host_status], le16_to_cpu(sts->scsi_status))); + + LEAVE("isp2x00_return_status"); + + return (le16_to_cpu(sts->scsi_status) & STATUS_MASK) | (host_status << 16); +} + + +static int isp2x00_abort(Scsi_Cmnd * Cmnd) +{ + u_short param[8]; + int i; + struct Scsi_Host *host; + struct isp2x00_hostdata *hostdata; + int return_status = SUCCESS; + + ENTER("isp2x00_abort"); + + host = Cmnd->device->host; + hostdata = (struct isp2x00_hostdata *) host->hostdata; + + for (i = 0; i < QLOGICFC_REQ_QUEUE_LEN; i++) + if (hostdata->handle_ptrs[i] == Cmnd) + break; + + if (i == QLOGICFC_REQ_QUEUE_LEN){ + return SUCCESS; + } + + isp2x00_disable_irqs(host); + + param[0] = MBOX_ABORT_IOCB; +#if ISP2x00_PORTDB + param[1] = (((u_short) hostdata->port_db[Cmnd->device->id].loop_id) << 8) | Cmnd->device->lun; +#else + param[1] = (((u_short) Cmnd->target) << 8) | Cmnd->lun; +#endif + param[2] = i & 0xffff; + param[3] = i >> 16; + + isp2x00_mbox_command(host, param); + + if (param[0] != MBOX_COMMAND_COMPLETE) { + printk("qlogicfc%d : scsi abort failure: %x\n", hostdata->host_id, param[0]); + if (param[0] == 0x4005) + Cmnd->result = DID_ERROR << 16; + if (param[0] == 0x4006) + Cmnd->result = DID_BAD_TARGET << 16; + return_status = FAILED; + } + + if (return_status != SUCCESS){ + param[0] = MBOX_GET_FIRMWARE_STATE; + isp2x00_mbox_command(host, param); + printk("qlogicfc%d : abort failed\n", hostdata->host_id); + printk("qlogicfc%d : firmware status is %x %x\n", hostdata->host_id, param[0], param[1]); + } + + isp2x00_enable_irqs(host); + + LEAVE("isp2x00_abort"); + + return return_status; +} + + +static int isp2x00_biosparam(struct scsi_device *sdev, struct block_device *n, + sector_t capacity, int ip[]) +{ + int size = capacity; + + ENTER("isp2x00_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]); + } + LEAVE("isp2x00_biosparam"); + + return 0; +} + +static int isp2x00_reset_hardware(struct Scsi_Host *host) +{ + u_short param[8]; + struct isp2x00_hostdata *hostdata; + int loop_count; + dma_addr_t busaddr; + + ENTER("isp2x00_reset_hardware"); + + hostdata = (struct isp2x00_hostdata *) host->hostdata; + + /* + * This cannot be right - PCI writes are posted + * (apparently this is hardware design flaw not software ?) + */ + + outw(0x01, host->io_port + ISP_CTRL_STATUS); + udelay(100); + outw(HCCR_RESET, host->io_port + HOST_HCCR); + udelay(100); + outw(HCCR_RELEASE, host->io_port + HOST_HCCR); + outw(HCCR_BIOS_DISABLE, host->io_port + HOST_HCCR); + + loop_count = DEFAULT_LOOP_COUNT; + while (--loop_count && inw(host->io_port + HOST_HCCR) == RISC_BUSY) { + barrier(); + cpu_relax(); + } + if (!loop_count) + printk("qlogicfc%d : reset_hardware loop timeout\n", hostdata->host_id); + + + +#if DEBUG_ISP2x00 + printk("qlogicfc%d : mbox 0 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX0)); + printk("qlogicfc%d : mbox 1 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX1)); + printk("qlogicfc%d : mbox 2 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX2)); + printk("qlogicfc%d : mbox 3 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX3)); + printk("qlogicfc%d : mbox 4 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX4)); + printk("qlogicfc%d : mbox 5 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX5)); + printk("qlogicfc%d : mbox 6 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX6)); + printk("qlogicfc%d : mbox 7 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX7)); +#endif /* DEBUG_ISP2x00 */ + + DEBUG(printk("qlogicfc%d : verifying checksum\n", hostdata->host_id)); + +#if defined(CONFIG_SCSI_QLOGIC_FC_FIRMWARE) + { + int i; + unsigned short * risc_code = NULL; + unsigned short risc_code_len = 0; + if (hostdata->pci_dev->device == PCI_DEVICE_ID_QLOGIC_ISP2100){ + risc_code = risc_code2100; + risc_code_len = risc_code_length2100; + } + else if (hostdata->pci_dev->device == PCI_DEVICE_ID_QLOGIC_ISP2200){ + risc_code = risc_code2200; + risc_code_len = risc_code_length2200; + } + + for (i = 0; i < risc_code_len; i++) { + param[0] = MBOX_WRITE_RAM_WORD; + param[1] = risc_code_addr01 + i; + param[2] = risc_code[i]; + + isp2x00_mbox_command(host, param); + + if (param[0] != MBOX_COMMAND_COMPLETE) { + printk("qlogicfc%d : firmware load failure\n", hostdata->host_id); + return 1; + } + } + } +#endif /* RELOAD_FIRMWARE */ + + param[0] = MBOX_VERIFY_CHECKSUM; + param[1] = risc_code_addr01; + + isp2x00_mbox_command(host, param); + + if (param[0] != MBOX_COMMAND_COMPLETE) { + printk("qlogicfc%d : ram checksum failure\n", hostdata->host_id); + return 1; + } + DEBUG(printk("qlogicfc%d : executing firmware\n", hostdata->host_id)); + + param[0] = MBOX_EXEC_FIRMWARE; + param[1] = risc_code_addr01; + + isp2x00_mbox_command(host, param); + + param[0] = MBOX_ABOUT_FIRMWARE; + + isp2x00_mbox_command(host, param); + + if (param[0] != MBOX_COMMAND_COMPLETE) { + printk("qlogicfc%d : about firmware failure\n", hostdata->host_id); + return 1; + } + DEBUG(printk("qlogicfc%d : firmware major revision %d\n", hostdata->host_id, param[1])); + DEBUG(printk("qlogicfc%d : firmware minor revision %d\n", hostdata->host_id, param[2])); + +#ifdef USE_NVRAM_DEFAULTS + + if (isp2x00_get_nvram_defaults(host, &hostdata->control_block) != 0) { + printk("qlogicfc%d : Could not read from NVRAM\n", hostdata->host_id); + } +#endif + + hostdata->wwn = (u64) (cpu_to_le16(hostdata->control_block.node_name[0])) << 56; + hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[0]) & 0xff00) << 48; + hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[1]) & 0xff00) << 24; + hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[1]) & 0x00ff) << 48; + hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[2]) & 0x00ff) << 24; + hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[2]) & 0xff00) << 8; + hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[3]) & 0x00ff) << 8; + hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[3]) & 0xff00) >> 8; + + /* FIXME: If the DMA transfer goes one way only, this should use + * PCI_DMA_TODEVICE and below as well. + */ + busaddr = pci_map_page(hostdata->pci_dev, + virt_to_page(&hostdata->control_block), + offset_in_page(&hostdata->control_block), + sizeof(hostdata->control_block), + PCI_DMA_BIDIRECTIONAL); + + param[0] = MBOX_INIT_FIRMWARE; + param[2] = (u_short) (pci64_dma_lo32(busaddr) >> 16); + param[3] = (u_short) (pci64_dma_lo32(busaddr) & 0xffff); + param[4] = 0; + param[5] = 0; + param[6] = (u_short) (pci64_dma_hi32(busaddr) >> 16); + param[7] = (u_short) (pci64_dma_hi32(busaddr) & 0xffff); + isp2x00_mbox_command(host, param); + if (param[0] != MBOX_COMMAND_COMPLETE) { + printk("qlogicfc%d.c: Ouch 0x%04x\n", hostdata->host_id, param[0]); + pci_unmap_page(hostdata->pci_dev, busaddr, + sizeof(hostdata->control_block), + PCI_DMA_BIDIRECTIONAL); + return 1; + } + param[0] = MBOX_GET_FIRMWARE_STATE; + isp2x00_mbox_command(host, param); + if (param[0] != MBOX_COMMAND_COMPLETE) { + printk("qlogicfc%d.c: 0x%04x\n", hostdata->host_id, param[0]); + pci_unmap_page(hostdata->pci_dev, busaddr, + sizeof(hostdata->control_block), + PCI_DMA_BIDIRECTIONAL); + return 1; + } + + pci_unmap_page(hostdata->pci_dev, busaddr, + sizeof(hostdata->control_block), + PCI_DMA_BIDIRECTIONAL); + LEAVE("isp2x00_reset_hardware"); + + return 0; +} + +#ifdef USE_NVRAM_DEFAULTS + +static int isp2x00_get_nvram_defaults(struct Scsi_Host *host, struct init_cb *control_block) +{ + + u_short value; + if (isp2x00_read_nvram_word(host, 0) != 0x5349) + return 1; + + value = isp2x00_read_nvram_word(host, 8); + control_block->node_name[0] = cpu_to_le16(isp2x00_read_nvram_word(host, 9)); + control_block->node_name[1] = cpu_to_le16(isp2x00_read_nvram_word(host, 10)); + control_block->node_name[2] = cpu_to_le16(isp2x00_read_nvram_word(host, 11)); + control_block->node_name[3] = cpu_to_le16(isp2x00_read_nvram_word(host, 12)); + control_block->hard_addr = cpu_to_le16(isp2x00_read_nvram_word(host, 13)); + + return 0; + +} + +#endif + +static int isp2x00_init(struct Scsi_Host *sh) +{ + u_long io_base; + struct isp2x00_hostdata *hostdata; + u_char revision; + u_int irq; + u_short command; + struct pci_dev *pdev; + + + ENTER("isp2x00_init"); + + hostdata = (struct isp2x00_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("qlogicfc%d : error reading PCI configuration\n", hostdata->host_id); + return 1; + } + io_base = pci_resource_start(pdev, 0); + irq = pdev->irq; + + + if (pdev->vendor != PCI_VENDOR_ID_QLOGIC) { + printk("qlogicfc%d : 0x%04x is not QLogic vendor ID\n", hostdata->host_id, + pdev->vendor); + return 1; + } + if (pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2100 && pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2200) { + printk("qlogicfc%d : 0x%04x does not match ISP2100 or ISP2200 device id\n", hostdata->host_id, + pdev->device); + return 1; + } + if (!(command & PCI_COMMAND_IO) || + !(pdev->resource[0].flags & IORESOURCE_IO)) { + printk("qlogicfc%d : i/o mapping is disabled\n", hostdata->host_id); + return 1; + } + + pci_set_master(pdev); + if (revision != ISP2100_REV_ID1 && revision != ISP2100_REV_ID3 && revision != ISP2200_REV_ID5) + printk("qlogicfc%d : new isp2x00 revision ID (%d)\n", hostdata->host_id, revision); + + + hostdata->revision = revision; + + sh->irq = irq; + sh->io_port = io_base; + + LEAVE("isp2x00_init"); + + return 0; +} + +#if USE_NVRAM_DEFAULTS + +#define NVRAM_DELAY() udelay(10) /* 10 microsecond delay */ + + +u_short isp2x00_read_nvram_word(struct Scsi_Host * host, u_short byte) +{ + int i; + u_short value, output, input; + + outw(0x2, host->io_port + PCI_NVRAM); + NVRAM_DELAY(); + outw(0x3, host->io_port + PCI_NVRAM); + NVRAM_DELAY(); + + byte &= 0xff; + byte |= 0x0600; + for (i = 10; i >= 0; i--) { + output = ((byte >> i) & 0x1) ? 0x4 : 0x0; + outw(output | 0x2, host->io_port + PCI_NVRAM); + NVRAM_DELAY(); + outw(output | 0x3, host->io_port + PCI_NVRAM); + NVRAM_DELAY(); + outw(output | 0x2, host->io_port + PCI_NVRAM); + NVRAM_DELAY(); + } + + for (i = 0xf, value = 0; i >= 0; i--) { + value <<= 1; + outw(0x3, host->io_port + PCI_NVRAM); + NVRAM_DELAY(); + input = inw(host->io_port + PCI_NVRAM); + NVRAM_DELAY(); + outw(0x2, host->io_port + PCI_NVRAM); + NVRAM_DELAY(); + if (input & 0x8) + value |= 1; + } + + outw(0x0, host->io_port + PCI_NVRAM); + NVRAM_DELAY(); + + return value; +} + + +#endif /* USE_NVRAM_DEFAULTS */ + + + +/* + * currently, this is only called during initialization or abort/reset, + * at which times interrupts are disabled, so polling is OK, I guess... + */ +static int isp2x00_mbox_command(struct Scsi_Host *host, u_short param[]) +{ + int loop_count; + struct isp2x00_hostdata *hostdata = (struct isp2x00_hostdata *) host->hostdata; + + if (mbox_param[param[0]] == 0 || hostdata->adapter_state == AS_FIRMWARE_DEAD) + return 1; + + loop_count = DEFAULT_LOOP_COUNT; + while (--loop_count && inw(host->io_port + HOST_HCCR) & 0x0080) { + barrier(); + cpu_relax(); + } + if (!loop_count) { + printk("qlogicfc%d : mbox_command loop timeout #1\n", hostdata->host_id); + param[0] = 0x4006; + hostdata->adapter_state = AS_FIRMWARE_DEAD; + return 1; + } + hostdata->mbox_done = 0; + + if (mbox_param[param[0]] == 0) + printk("qlogicfc%d : invalid mbox command\n", hostdata->host_id); + + if (mbox_param[param[0]] & 0x80) + outw(param[7], host->io_port + MBOX7); + if (mbox_param[param[0]] & 0x40) + outw(param[6], host->io_port + MBOX6); + if (mbox_param[param[0]] & 0x20) + outw(param[5], host->io_port + MBOX5); + if (mbox_param[param[0]] & 0x10) + outw(param[4], host->io_port + MBOX4); + if (mbox_param[param[0]] & 0x08) + outw(param[3], host->io_port + MBOX3); + if (mbox_param[param[0]] & 0x04) + outw(param[2], host->io_port + MBOX2); + if (mbox_param[param[0]] & 0x02) + outw(param[1], host->io_port + MBOX1); + if (mbox_param[param[0]] & 0x01) + outw(param[0], host->io_port + MBOX0); + + + outw(HCCR_SET_HOST_INTR, host->io_port + HOST_HCCR); + + while (1) { + loop_count = DEFAULT_LOOP_COUNT; + while (--loop_count && !(inw(host->io_port + PCI_INTER_STS) & 0x08)) { + barrier(); + cpu_relax(); + } + + if (!loop_count) { + hostdata->adapter_state = AS_FIRMWARE_DEAD; + printk("qlogicfc%d : mbox_command loop timeout #2\n", hostdata->host_id); + break; + } + isp2x00_intr_handler(host->irq, host, NULL); + + if (hostdata->mbox_done == 1) + break; + + } + + loop_count = DEFAULT_LOOP_COUNT; + while (--loop_count && inw(host->io_port + MBOX0) == 0x04) { + barrier(); + cpu_relax(); + } + if (!loop_count) + printk("qlogicfc%d : mbox_command loop timeout #3\n", hostdata->host_id); + + param[7] = inw(host->io_port + MBOX7); + param[6] = inw(host->io_port + MBOX6); + param[5] = inw(host->io_port + MBOX5); + param[4] = inw(host->io_port + MBOX4); + param[3] = inw(host->io_port + MBOX3); + param[2] = inw(host->io_port + MBOX2); + param[1] = inw(host->io_port + MBOX1); + param[0] = inw(host->io_port + MBOX0); + + + outw(0x0, host->io_port + PCI_SEMAPHORE); + + if (inw(host->io_port + HOST_HCCR) & 0x0080) { + hostdata->adapter_state = AS_FIRMWARE_DEAD; + printk("qlogicfc%d : mbox op is still pending\n", hostdata->host_id); + } + return 0; +} + +#if DEBUG_ISP2x00_INTR + +void isp2x00_print_status_entry(struct Status_Entry *status) +{ + printk("qlogicfc : entry count = 0x%02x, type = 0x%02x, flags = 0x%02x\n", + status->hdr.entry_cnt, status->hdr.entry_type, status->hdr.flags); + printk("qlogicfc : scsi status = 0x%04x, completion status = 0x%04x\n", + le16_to_cpu(status->scsi_status), le16_to_cpu(status->completion_status)); + printk("qlogicfc : state flags = 0x%04x, status flags = 0x%04x\n", + le16_to_cpu(status->state_flags), le16_to_cpu(status->status_flags)); + printk("qlogicfc : response info length = 0x%04x, request sense length = 0x%04x\n", + le16_to_cpu(status->res_info_len), le16_to_cpu(status->req_sense_len)); + printk("qlogicfc : residual transfer length = 0x%08x, response = 0x%02x\n", le32_to_cpu(status->residual), status->res_info[3]); + +} + +#endif /* DEBUG_ISP2x00_INTR */ + + +#if DEBUG_ISP2x00 + +void isp2x00_print_scsi_cmd(Scsi_Cmnd * cmd) +{ + int i; + + printk("qlogicfc : target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n", + cmd->target, cmd->lun, cmd->cmd_len); + printk("qlogicfc : command = "); + for (i = 0; i < cmd->cmd_len; i++) + printk("0x%02x ", cmd->cmnd[i]); + printk("\n"); +} + +#endif /* DEBUG_ISP2x00 */ + +MODULE_LICENSE("GPL"); + +static Scsi_Host_Template driver_template = { + .detect = isp2x00_detect, + .release = isp2x00_release, + .info = isp2x00_info, + .queuecommand = isp2x00_queuecommand, + .eh_abort_handler = isp2x00_abort, + .bios_param = isp2x00_biosparam, + .can_queue = QLOGICFC_REQ_QUEUE_LEN, + .this_id = -1, + .sg_tablesize = QLOGICFC_MAX_SG(QLOGICFC_REQ_QUEUE_LEN), + .cmd_per_lun = QLOGICFC_CMD_PER_LUN, + .use_clustering = ENABLE_CLUSTERING, +}; +#include "scsi_module.c" |