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1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 | /* * QLogic ISP2100 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 */ /* * $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/blk.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 <asm/io.h> #include <asm/irq.h> #include <asm/spinlock.h> #include "sd.h" #include "hosts.h" #include "qlogicfc.h" /* Configuration section **************************************************** */ /* Set the following macro to 1 to reload the ISP2100's firmware. This is version 1.15.19 of the firmware. */ #define RELOAD_FIRMWARE 1 #define USE_NVRAM_DEFAULTS 1 #define ISP2100_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 ISP2100_FABRIC 0 /* Macros used for debugging */ /* #define DEBUG_ISP2100 1 #define DEBUG_ISP2100_INT 1 #define DEBUG_ISP2100_INTR 1 #define DEBUG_ISP2100_SETUP 1 #define DEBUG_ISP2100_FABRIC 1 */ /* #define TRACE_ISP 1 */ #define DEFAULT_LOOP_COUNT 10000000 /* 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_ISP2100_FABRIC #define DEBUG_FABRIC(x) x #else #define DEBUG_FABRIC(x) #endif /* DEBUG_ISP2100_FABRIC */ #if DEBUG_ISP2100 #define ENTER(x) printk("isp2100 : entering %s()\n", x); #define LEAVE(x) printk("isp2100 : leaving %s()\n", x); #define DEBUG(x) x #else #define ENTER(x) #define LEAVE(x) #define DEBUG(x) #endif /* DEBUG_ISP2100 */ #if DEBUG_ISP2100_INTR #define ENTER_INTR(x) printk("isp2100 : entering %s()\n", x); #define LEAVE_INTR(x) printk("isp2100 : leaving %s()\n", x); #define DEBUG_INTR(x) x #else #define ENTER_INTR(x) #define LEAVE_INTR(x) #define DEBUG_INTR(x) #endif /* DEBUG ISP2100_INTR */ #if defined(__i386__) #define virt_to_bus_low32(x) virt_to_bus(x) #define virt_to_bus_high32(x) 0x0 #define bus_to_virt_low32(x) bus_to_virt(x) #define bus_to_virt_high32(x) 0x0 #elif defined(__alpha__) #define virt_to_bus_low32(x) ((u32) (0xffffffff & virt_to_bus(x))) #define virt_to_bus_high32(x) ((u32) (0xffffffff & (virt_to_bus(x)>>32))) #define bus_to_virt_low32(x) ((u32) (0xffffffff & bus_to_virt(x))) #define bus_to_virt_high32(x) ((u32) (0xffffffff & (bus_to_virt(x)>>32))) #endif #define ISP2100_REV_ID 1 #define ISP2100_REV_ID3 3 #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 FLASH_BIOS_ADDR 0x00 #define FLASH_BIOS_DATA 0x02 #define ISP_CTRL_STATUS 0x06 /* configuration register #1 */ #define PCI_INTER_CTL 0x08 /* pci interupt control */ #define PCI_INTER_STS 0x0a /* pci interupt 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_OCCURED 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 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_lo; u_int d_base_high; u_int d_count; }; struct Command_Entry { struct Entry_header hdr; u_int handle; u_char target_lun; u_char target_id; u_short rsvd1; 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[2]; }; /* 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; struct dataseg dataseg[5]; }; 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 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 /* interupt 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 #include "qlogicfc_asm.c" /* 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. */ 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_short data[22]; }; /* 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 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 ISP2100_FABRIC #define QLOGICFC_MAX_ID 0xff #else #define QLOGICFC_MAX_ID 0x80 #endif struct isp2100_hostdata { u_char revision; struct pci_dev *pci_dev; /* result and request queues (shared with isp2100): */ 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[RES_QUEUE_LEN + 1][QUEUE_ENTRY_LEN]; char req[QLOGICFC_REQ_QUEUE_LEN + 1][QUEUE_ENTRY_LEN]; struct init_cb control_block; int loop_up; unsigned long int tag_ages[126]; 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; }; /* 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 isp2100_enable_irqs(struct Scsi_Host *); static void isp2100_disable_irqs(struct Scsi_Host *); static int isp2100_init(struct Scsi_Host *); static int isp2100_reset_hardware(struct Scsi_Host *); static int isp2100_mbox_command(struct Scsi_Host *, u_short[]); static int isp2100_return_status(struct Status_Entry *); static void isp2100_intr_handler(int, void *, struct pt_regs *); static void do_isp2100_intr_handler(int, void *, struct pt_regs *); static int isp2100_make_portdb(struct Scsi_Host *); #if ISP2100_FABRIC static int isp2100_init_fabric(struct Scsi_Host *, struct id_name_map *, int); #endif #if USE_NVRAM_DEFAULTS static int isp2100_get_nvram_defaults(struct Scsi_Host *, struct init_cb *); static u_short isp2100_read_nvram_word(struct Scsi_Host *, u_short); #endif #if DEBUG_ISP2100 static void isp2100_print_scsi_cmd(Scsi_Cmnd *); #endif static void isp2100_print_status_entry(struct Status_Entry *); static struct proc_dir_entry proc_scsi_isp2100 = { PROC_SCSI_QLOGICFC, 7, "isp2100", S_IFDIR | S_IRUGO | S_IXUGO, 2 }; static inline void isp2100_enable_irqs(struct Scsi_Host *host) { outw(ISP_EN_INT | ISP_EN_RISC, host->io_port + PCI_INTER_CTL); } static inline void isp2100_disable_irqs(struct Scsi_Host *host) { outw(0x0, host->io_port + PCI_INTER_CTL); } int isp2100_detect(Scsi_Host_Template * tmpt) { int hosts = 0; int wait_time; struct Scsi_Host *host = NULL; struct isp2100_hostdata *hostdata; struct pci_dev *pdev = NULL; ENTER("isp2100_detect"); tmpt->proc_dir = &proc_scsi_isp2100; if (pci_present() == 0) { printk("qlogicfc : PCI not present\n"); return 0; } while ((pdev = pci_find_device(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100, pdev))) { host = scsi_register(tmpt, sizeof(struct isp2100_hostdata)); host->max_id = QLOGICFC_MAX_ID + 1; host->hostt->use_new_eh_code = 1; hostdata = (struct isp2100_hostdata *) host->hostdata; memset(hostdata, 0, sizeof(struct isp2100_hostdata)); hostdata->pci_dev = pdev; hostdata->queued = 0; /* set up the control block */ hostdata->control_block.version = 0x0f; hostdata->control_block.firm_opts = 0x010c; hostdata->control_block.max_frame_len = 2048; hostdata->control_block.max_iocb = 256; hostdata->control_block.exec_throttle = 8; hostdata->control_block.retry_delay = 5; hostdata->control_block.retry_cnt = 0; hostdata->control_block.node_name[0] = 0x0020; hostdata->control_block.node_name[1] = 0xE000; hostdata->control_block.node_name[2] = 0x008B; hostdata->control_block.node_name[3] = 0x0000; hostdata->control_block.hard_addr = 0x0003; hostdata->control_block.req_queue_len = QLOGICFC_REQ_QUEUE_LEN + 1; hostdata->control_block.res_queue_len = RES_QUEUE_LEN + 1; hostdata->control_block.res_queue_addr_lo = virt_to_bus_low32(&hostdata->res); hostdata->control_block.res_queue_addr_high = virt_to_bus_high32(&hostdata->res); hostdata->control_block.req_queue_addr_lo = virt_to_bus_low32(&hostdata->req); hostdata->control_block.req_queue_addr_high = virt_to_bus_high32(&hostdata->req); hostdata->loop_up = 0; if (isp2100_init(host) || isp2100_reset_hardware(host)) { scsi_unregister(host); continue; } host->this_id = 0; if (request_irq(host->irq, do_isp2100_intr_handler, SA_INTERRUPT | SA_SHIRQ, "qlogicfc", host)) { printk("qlogicfc : interrupt %d already in use\n", host->irq); scsi_unregister(host); continue; } if (check_region(host->io_port, 0xff)) { printk("qlogicfc : i/o region 0x%lx-0x%lx already " "in use\n", host->io_port, host->io_port + 0xff); free_irq(host->irq, host); scsi_unregister(host); continue; } request_region(host->io_port, 0xff, "qlogicfc"); outw(0x0, host->io_port + PCI_SEMAPHORE); outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR); isp2100_enable_irqs(host); /* wait for the loop to come up */ for (wait_time = jiffies + 10 * HZ; wait_time > jiffies && hostdata->loop_up == 0;) barrier(); if (hostdata->loop_up == 0) { printk("qlogicfc: loop is not up\n"); release_region(host->io_port, 0xff); free_irq(host->irq, host); scsi_unregister(host); continue; } hosts++; } /* this busy loop should not be needed but the isp2100 seems to need some time before recognizing it is attached to a fabric */ #if ISP2100_FABRIC for (wait_time = jiffies + 5 * HZ; wait_time > jiffies;) barrier(); #endif LEAVE("isp2100_detect"); return hosts; } static int isp2100_make_portdb(struct Scsi_Host *host) { short param[8]; int i, j; struct id_name_map temp[QLOGICFC_MAX_ID + 1]; struct isp2100_hostdata *hostdata; isp2100_disable_irqs(host); memset(temp, 0, sizeof(temp)); hostdata = (struct isp2100_hostdata *) host->hostdata; #if ISP2100_FABRIC for (i = 0x81; i < QLOGICFC_MAX_ID; i++) { param[0] = MBOX_PORT_LOGOUT; param[1] = i << 8; param[2] = 0; param[3] = 0; isp2100_mbox_command(host, param); if (param[0] != MBOX_COMMAND_COMPLETE) { printk("logout failed %x %x\n", i, param[0]); } } #endif param[0] = MBOX_GET_INIT_SCSI_ID; isp2100_mbox_command(host, param); if (param[0] == MBOX_COMMAND_COMPLETE) { hostdata->port_id = ((u_int) param[3]) << 16; hostdata->port_id |= param[2]; temp[0].loop_id = param[1]; temp[0].wwn = hostdata->wwn; } else { printk("qlogicfc: error getting scsi id.\n"); } for (i = 1, j = 1; i <= QLOGICFC_MAX_ID; i++) { temp[i].loop_id = temp[0].loop_id; param[0] = MBOX_GET_PORT_NAME; param[1] = (i << 8) & 0xff00; isp2100_mbox_command(host, param); if (param[0] == MBOX_COMMAND_COMPLETE) { temp[j].loop_id = i; temp[j].wwn = ((u64) (param[2] & 0xff)) << 56; temp[j].wwn |= ((u64) ((param[2] >> 8) & 0xff)) << 48; temp[j].wwn |= ((u64) (param[3] & 0xff)) << 40; temp[j].wwn |= ((u64) ((param[3] >> 8) & 0xff)) << 32; temp[j].wwn |= ((u64) (param[6] & 0xff)) << 24; temp[j].wwn |= ((u64) ((param[6] >> 8) & 0xff)) << 16; temp[j].wwn |= ((u64) (param[7] & 0xff)) << 8; temp[j].wwn |= ((u64) ((param[7] >> 8) & 0xff)); j++; } } #if ISP2100_FABRIC isp2100_init_fabric(host, temp, j); #endif for (i = 0; i <= QLOGICFC_MAX_ID; i++) { if (temp[i].wwn != hostdata->port_db[i].wwn) { for (j = 0; j <= QLOGICFC_MAX_ID; j++) { if (temp[j].wwn == hostdata->port_db[i].wwn) { hostdata->port_db[i].loop_id = temp[j].loop_id; break; } } if (j == QLOGICFC_MAX_ID + 1) hostdata->port_db[i].loop_id = temp[0].loop_id; for (j = 0; j <= QLOGICFC_MAX_ID; j++) { if (hostdata->port_db[j].wwn == temp[i].wwn || !hostdata->port_db[j].wwn) { break; } } if (j == QLOGICFC_MAX_ID + 1) printk("qlogicfc.c: Too many scsi devices, no more room in port map.\n"); if (!hostdata->port_db[j].wwn) { hostdata->port_db[j].loop_id = temp[i].loop_id; hostdata->port_db[j].wwn = temp[i].wwn; } } else hostdata->port_db[i].loop_id = temp[i].loop_id; } isp2100_enable_irqs(host); return 0; } #if ISP2100_FABRIC int isp2100_init_fabric(struct Scsi_Host *host, struct id_name_map *port_db, int j) { u_short param[8]; u64 wwn; int done = 0; u_short loop_id = 0x81; u_short scsi_id = j; u_int port_id; struct sns_cb req; u_char sns_response[608]; struct isp2100_hostdata *hostdata; hostdata = (struct isp2100_hostdata *) host->hostdata; DEBUG_FABRIC(printk("qlogicfc.c: Checking for a fabric.\n")); param[0] = MBOX_GET_PORT_NAME; param[1] = 0x7E00; isp2100_mbox_command(host, param); if (param[0] != MBOX_COMMAND_COMPLETE) { DEBUG_FABRIC(printk("fabric check result %x\n", param[0])); return 0; } printk("qlogicfc.c: Fabric found.\n"); port_id = hostdata->port_id; while (!done) { memset(&req, 0, sizeof(req)); req.len = 304; req.response_low = virt_to_bus_low32(sns_response); req.response_high = virt_to_bus_high32(sns_response); req.sub_len = 6; req.data[0] = 0x0100; req.data[4] = (u_short) (port_id & 0xffff); req.data[5] = (u_short) (port_id >> 16 & 0xffff); param[0] = MBOX_SEND_SNS; param[1] = 14; param[2] = virt_to_bus_low32(&req) >> 16; param[3] = virt_to_bus_low32(&req); param[6] = virt_to_bus_high32(&req) >> 16; param[7] = virt_to_bus_high32(&req); isp2100_mbox_command(host, param); if (param[0] == MBOX_COMMAND_COMPLETE) { DEBUG_FABRIC(printk("found node %02x%02x%02x%02x%02x%02x%02x%02x ", 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("adding a fabric port: %x\n", 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); isp2100_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.c: Error performing port login %x\n", param[0]); DEBUG_FABRIC(printk("loop_id: %x\n", loop_id)); } } if (hostdata->port_id == port_id) done = 1; } else { printk("qlogicfc.c: Get All Next failed %x.\n", param[0]); return 0; } } return 1; } #endif /* ISP2100_FABRIC */ int isp2100_release(struct Scsi_Host *host) { struct isp2100_hostdata *hostdata; ENTER("isp2100_release"); hostdata = (struct isp2100_hostdata *) host->hostdata; outw(0x0, host->io_port + PCI_INTER_CTL); free_irq(host->irq, host); release_region(host->io_port, 0xff); LEAVE("isp2100_release"); return 0; } const char *isp2100_info(struct Scsi_Host *host) { static char buf[80]; struct isp2100_hostdata *hostdata; ENTER("isp2100_info"); hostdata = (struct isp2100_hostdata *) host->hostdata; sprintf(buf, "QLogic ISP2100 SCSI on PCI bus %02x device %02x irq %d base 0x%lx", hostdata->pci_dev->bus->number, hostdata->pci_dev->devfn, host->irq, host->io_port); LEAVE("isp2100_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). */ int isp2100_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 isp2100_hostdata *hostdata; ENTER("isp2100_queuecommand"); host = Cmnd->host; hostdata = (struct isp2100_hostdata *) host->hostdata; Cmnd->scsi_done = done; DEBUG(isp2100_print_scsi_cmd(Cmnd)); if (hostdata->loop_up == 2) { hostdata->loop_up = 1; isp2100_make_portdb(host); for (i = 0; hostdata->port_db[i].wwn != 0; i++) { DEBUG(printk("wwn: %08x%08x scsi_id: %x loop_id: %x\n", (u_int) (hostdata->port_db[i].wwn >> 32), (u_int) hostdata->port_db[i].wwn, i, hostdata->port_db[i].loop_id)); } } if (hostdata->loop_up == -1) { printk("qlogicfc.c: The firmware is dead, just return.\n"); host->max_id = 0; return 0; } out_ptr = inw(host->io_port + MBOX4); in_ptr = hostdata->req_in_ptr; DEBUG(printk("qlogicfc : request queue depth %d\n", REQ_QUEUE_DEPTH(in_ptr, out_ptr))); cmd = (struct Command_Entry *) &hostdata->req[in_ptr][0]; in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN; if (in_ptr == out_ptr) { DEBUG(printk("qlogicfc : request queue overflow\n")); return 1; } if (hostdata->send_marker) { struct Marker_Entry *marker; TRACE("queue marker", in_ptr, 0); DEBUG(printk("qlogicfc : 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) & QLOGICFC_REQ_QUEUE_LEN) == out_ptr) { outw(in_ptr, host->io_port + MBOX4); hostdata->req_in_ptr = in_ptr; DEBUG(printk("qlogicfc : request queue overflow\n")); return 1; } cmd = (struct Command_Entry *) &hostdata->req[in_ptr][0]; 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 = i; hostdata->handle_ptrs[i] = Cmnd; hostdata->handle_serials[i] = Cmnd->serial_number; } else printk("qlogicfc: no handle slots, this should not happen.\n"); cmd->hdr.entry_type = ENTRY_COMMAND; cmd->hdr.entry_cnt = 1; cmd->target_lun = Cmnd->lun; #if ISP2100_PORTDB cmd->target_id = hostdata->port_db[Cmnd->target].loop_id; #else cmd->target_id = Cmnd->target; #endif cmd->total_byte_cnt = (u_int) Cmnd->request_bufflen; cmd->time_out = (SCSI_TIMEOUT / HZ) * 5; memcpy(cmd->cdb, Cmnd->cmnd, Cmnd->cmd_len); if (Cmnd->use_sg) { cmd->segment_cnt = sg_count = Cmnd->use_sg; sg = (struct scatterlist *) Cmnd->request_buffer; ds = cmd->dataseg; /* fill in first two sg entries: */ n = sg_count; if (n > 2) n = 2; for (i = 0; i < n; i++) { ds[i].d_base_lo = virt_to_bus_low32(sg->address); ds[i].d_base_high = virt_to_bus_high32(sg->address); ds[i].d_count = sg->length; ++sg; } sg_count -= 2; while (sg_count > 0) { ++cmd->hdr.entry_cnt; cont = (struct Continuation_Entry *) &hostdata->req[in_ptr][0]; memset(cont, 0, sizeof(struct Continuation_Entry)); in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN; if (in_ptr == out_ptr) { DEBUG(printk("isp2100: unexpected request queue overflow\n")); return 1; } TRACE("queue continuation", in_ptr, 0); cont->hdr.entry_type = ENTRY_CONTINUATION; ds = cont->dataseg; n = sg_count; if (n > 5) n = 5; for (i = 0; i < n; ++i) { ds[i].d_base_lo = virt_to_bus_low32(sg->address); ds[i].d_base_high = virt_to_bus_high32(sg->address); ds[i].d_count = sg->length; ++sg; } sg_count -= n; } } else { cmd->dataseg[0].d_base_lo = virt_to_bus_low32(Cmnd->request_buffer); cmd->dataseg[0].d_base_high = virt_to_bus_high32(Cmnd->request_buffer); cmd->dataseg[0].d_count = (u_int) Cmnd->request_bufflen; cmd->segment_cnt = 1; } switch (Cmnd->cmnd[0]) { case WRITE_10: case WRITE_6: case WRITE_BUFFER: cmd->control_flags = CFLAG_WRITE; break; case REQUEST_SENSE: /* scsi.c expects sense info in a different buffer */ cmd->dataseg[0].d_base_lo = virt_to_bus_low32(Cmnd->sense_buffer); cmd->dataseg[0].d_base_high = virt_to_bus_high32(Cmnd->sense_buffer); cmd->segment_cnt = 1; cmd->control_flags = CFLAG_READ; break; default: cmd->control_flags = CFLAG_READ; break; } if (Cmnd->device->tagged_supported) { if ((jiffies - hostdata->tag_ages[Cmnd->target]) > (2 * SCSI_TIMEOUT)) { cmd->control_flags |= CFLAG_ORDERED_TAG; hostdata->tag_ages[Cmnd->target] = jiffies; } else switch (Cmnd->tag) { case HEAD_OF_QUEUE_TAG: cmd->control_flags |= CFLAG_HEAD_TAG; break; case ORDERED_QUEUE_TAG: cmd->control_flags |= CFLAG_ORDERED_TAG; break; default: cmd->control_flags |= CFLAG_SIMPLE_TAG; break; } } 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 = hostdata->queued + 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); /* this is really gross */ if (host->can_queue <= host->host_busy){ if (host->can_queue+2 < host->host_busy) DEBUG(printk("qlogicfc.c crosses its fingers.\n")); host->can_queue = host->host_busy + 1; } LEAVE("isp2100_queuecommand"); return 0; } #define ASYNC_EVENT_INTERRUPT 0x01 void do_isp2100_intr_handler(int irq, void *dev_id, struct pt_regs *regs) { unsigned long flags; spin_lock_irqsave(&io_request_lock, flags); isp2100_intr_handler(irq, dev_id, regs); spin_unlock_irqrestore(&io_request_lock, flags); } void isp2100_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 isp2100_hostdata *hostdata; u_int in_ptr, out_ptr, handle, num_free; u_short status; ENTER_INTR("isp2100_intr_handler"); hostdata = (struct isp2100_hostdata *) host->hostdata; DEBUG_INTR(printk("qlogicfc : interrupt on line %d\n", irq)); if (!(inw(host->io_port + PCI_INTER_STS) & 0x08)) { /* spurious interrupts can happen legally */ DEBUG_INTR(printk("qlogicfc: got spurious interrupt\n")); 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 : mbox completion status: %x\n", status)); switch (status) { case LOOP_UP: hostdata->loop_up = 2; break; case LOOP_DOWN: hostdata->loop_up = 0; break; case LIP_OCCURED: case CHANGE_NOTIFICATION: case PORT_DB_CHANGED: case LIP_RECEIVED: if (hostdata->loop_up == 1) hostdata->loop_up = 2; break; case SYSTEM_ERROR: printk("The firmware just choked.\n"); hostdata->loop_up = -1; 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) { Cmnd->result = 0x0; (*Cmnd->scsi_done) (Cmnd); } else printk("qlogicfc.c: got a null value out of handle_ptrs, this sucks\n"); 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: got an unknown status? %x\n", status); } outw(0x0, host->io_port + PCI_SEMAPHORE); } else { DEBUG_INTR(printk("qlogicfc : response queue update\n")); DEBUG_INTR(printk("qlogicfc : response queue depth %d\n", RES_QUEUE_DEPTH(in_ptr, out_ptr))); while (out_ptr != in_ptr) { sts = (struct Status_Entry *) &hostdata->res[out_ptr][0]; out_ptr = (out_ptr + 1) & RES_QUEUE_LEN; TRACE("done", out_ptr, Cmnd); DEBUG_INTR(isp2100_print_status_entry(sts)); if (sts->hdr.entry_type == ENTRY_STATUS) { Cmnd = hostdata->handle_ptrs[sts->handle]; Cmnd->result = isp2100_return_status(sts); hostdata->handle_ptrs[sts->handle] = NULL; hostdata->queued--; if (hostdata->handle_serials[sts->handle] != Cmnd->serial_number) { hostdata->handle_serials[sts->handle] = 0; outw(out_ptr, host->io_port + MBOX5); continue; } hostdata->handle_serials[sts->handle] = 0; } else { outw(out_ptr, host->io_port + MBOX5); continue; } if (sts->completion_status == CS_RESET_OCCURRED || sts->completion_status == CS_ABORTED || (sts->status_flags & STF_BUS_RESET)) hostdata->send_marker = 1; memset(Cmnd->sense_buffer, 0, sizeof(Cmnd->sense_buffer)); if (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("Ouch, scsi done is NULL\n"); } 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 = hostdata->queued + 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); if (host->can_queue <= host->host_busy){ if (host->can_queue+2 < host->host_busy) DEBUG(printk("qlogicfc crosses its fingers.\n")); host->can_queue = host->host_busy + 1; } outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR); LEAVE_INTR("isp2100_intr_handler"); } static int isp2100_return_status(struct Status_Entry *sts) { int host_status = DID_ERROR; #if DEBUG_ISP2100_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_ISP2100_INTR */ ENTER("isp2100_return_status"); DEBUG(printk("qlogicfc : completion status = 0x%04x\n", sts->completion_status)); switch (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: host_status = DID_OK; 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", sts->completion_status); host_status = DID_ERROR; break; } DEBUG_INTR(printk("qlogicfc : host status (%s) scsi status %x\n", reason[host_status], sts->scsi_status)); LEAVE("isp2100_return_status"); return (sts->scsi_status & STATUS_MASK) | (host_status << 16); } int isp2100_abort(Scsi_Cmnd * Cmnd) { u_short param[8]; int i; struct Scsi_Host *host; struct isp2100_hostdata *hostdata; int return_status = SCSI_ABORT_SUCCESS; ENTER("isp2100_abort"); host = Cmnd->host; hostdata = (struct isp2100_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 SCSI_ABORT_ERROR; isp2100_disable_irqs(host); param[0] = MBOX_ABORT_IOCB; param[1] = (((u_short) Cmnd->target) << 8) | Cmnd->lun; param[2] = i >> 16; param[3] = i & 0xffff; isp2100_mbox_command(host, param); if (param[0] != MBOX_COMMAND_COMPLETE) { printk("qlogicfc : scsi abort failure: %x\n", param[0]); if (param[0] == 0x4005) Cmnd->result = DID_ERROR << 16; if (param[0] == 0x4006) Cmnd->result = DID_BAD_TARGET << 16; (*Cmnd->scsi_done) (Cmnd); return_status = SCSI_ABORT_ERROR; } isp2100_enable_irqs(host); LEAVE("isp2100_abort"); return return_status; } int isp2100_reset(Scsi_Cmnd * Cmnd, unsigned int reset_flags) { u_short param[8]; struct Scsi_Host *host; struct isp2100_hostdata *hostdata; int return_status = SCSI_RESET_SUCCESS; ENTER("isp2100_reset"); host = Cmnd->host; hostdata = (struct isp2100_hostdata *) host->hostdata; param[0] = MBOX_BUS_RESET; param[1] = 3; isp2100_disable_irqs(host); isp2100_mbox_command(host, param); if (param[0] != MBOX_COMMAND_COMPLETE) { printk("qlogicfc : scsi bus reset failure: %x\n", param[0]); return_status = SCSI_RESET_ERROR; } isp2100_enable_irqs(host); LEAVE("isp2100_reset"); return return_status;; } int isp2100_biosparam(Disk * disk, kdev_t n, int ip[]) { int size = disk->capacity; ENTER("isp2100_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("isp2100_biosparam"); return 0; } static int isp2100_reset_hardware(struct Scsi_Host *host) { u_short param[8]; struct isp2100_hostdata *hostdata; int loop_count; ENTER("isp2100_reset_hardware"); outw(0x01, host->io_port + ISP_CTRL_STATUS); outw(HCCR_RESET, host->io_port + HOST_HCCR); 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(); if (!loop_count) printk("qlogicfc: reset_hardware loop timeout\n"); #if DEBUG_ISP2100 printk("qlogicfc : mbox 0 0x%04x \n", inw(host->io_port + MBOX0)); printk("qlogicfc : mbox 1 0x%04x \n", inw(host->io_port + MBOX1)); printk("qlogicfc : mbox 2 0x%04x \n", inw(host->io_port + MBOX2)); printk("qlogicfc : mbox 3 0x%04x \n", inw(host->io_port + MBOX3)); printk("qlogicfc : mbox 4 0x%04x \n", inw(host->io_port + MBOX4)); printk("qlogicfc : mbox 5 0x%04x \n", inw(host->io_port + MBOX5)); printk("qlogicfc : mbox 6 0x%04x \n", inw(host->io_port + MBOX6)); printk("qlogicfc : mbox 7 0x%04x \n", inw(host->io_port + MBOX7)); #endif /* DEBUG_ISP2100 */ DEBUG(printk("qlogicfc : verifying checksum\n")); #if RELOAD_FIRMWARE { int i; for (i = 0; i < risc_code_length01; i++) { param[0] = MBOX_WRITE_RAM_WORD; param[1] = risc_code_addr01 + i; param[2] = risc_code01[i]; isp2100_mbox_command(host, param); if (param[0] != MBOX_COMMAND_COMPLETE) { printk("qlogicfc : firmware load failure\n"); return 1; } } } #endif /* RELOAD_FIRMWARE */ param[0] = MBOX_VERIFY_CHECKSUM; param[1] = risc_code_addr01; isp2100_mbox_command(host, param); if (param[0] != MBOX_COMMAND_COMPLETE) { printk("qlogicfc : ram checksum failure\n"); return 1; } DEBUG(printk("qlogicfc : executing firmware\n")); param[0] = MBOX_EXEC_FIRMWARE; param[1] = risc_code_addr01; isp2100_mbox_command(host, param); param[0] = MBOX_ABOUT_FIRMWARE; isp2100_mbox_command(host, param); if (param[0] != MBOX_COMMAND_COMPLETE) { printk("qlogicfc : about firmware failure\n"); return 1; } DEBUG(printk("qlogicfc : firmware major revision %d\n", param[1])); DEBUG(printk("qlogicfc : firmware minor revision %d\n", param[2])); hostdata = (struct isp2100_hostdata *) host->hostdata; #ifdef USE_NVRAM_DEFAULTS if (isp2100_get_nvram_defaults(host, &hostdata->control_block) != 0) { printk("qlogicfc: Could not read from NVRAM\n"); } #endif hostdata->wwn = (u64) (hostdata->control_block.node_name[0]) << 56; hostdata->wwn |= (u64) (hostdata->control_block.node_name[0] & 0xff00) << 48; hostdata->wwn |= (u64) (hostdata->control_block.node_name[1] & 0xff00) << 24; hostdata->wwn |= (u64) (hostdata->control_block.node_name[1] & 0x00ff) << 48; hostdata->wwn |= (u64) (hostdata->control_block.node_name[2] & 0x00ff) << 24; hostdata->wwn |= (u64) (hostdata->control_block.node_name[2] & 0xff00) << 8; hostdata->wwn |= (u64) (hostdata->control_block.node_name[3] & 0x00ff) << 8; hostdata->wwn |= (u64) (hostdata->control_block.node_name[3] & 0xff00) >> 8; param[0] = MBOX_INIT_FIRMWARE; param[2] = (u_short) (virt_to_bus_low32(&hostdata->control_block) >> 16); param[3] = (u_short) (virt_to_bus_low32(&hostdata->control_block) & 0xffff); param[4] = 0; param[5] = 0; param[6] = (u_short) (virt_to_bus_high32(&hostdata->control_block) >> 16); param[7] = (u_short) (virt_to_bus_high32(&hostdata->control_block) & 0xffff); isp2100_mbox_command(host, param); if (param[0] != MBOX_COMMAND_COMPLETE) { printk("qlogicfc.c: Ouch 0x%04x\n", param[0]); return 1; } param[0] = MBOX_GET_FIRMWARE_STATE; isp2100_mbox_command(host, param); if (param[0] != MBOX_COMMAND_COMPLETE) { printk("qlogicfc.c: 0x%04x\n", param[0]); return 1; } LEAVE("isp2100_reset_hardware"); return 0; } #ifdef USE_NVRAM_DEFAULTS static int isp2100_get_nvram_defaults(struct Scsi_Host *host, struct init_cb *control_block) { u_short value; if (isp2100_read_nvram_word(host, 0) != 0x5349) return 1; value = isp2100_read_nvram_word(host, 8); control_block->node_name[0] = isp2100_read_nvram_word(host, 9); control_block->node_name[1] = isp2100_read_nvram_word(host, 10); control_block->node_name[2] = isp2100_read_nvram_word(host, 11); control_block->node_name[3] = isp2100_read_nvram_word(host, 12); control_block->hard_addr = isp2100_read_nvram_word(host, 13); return 0; } #endif static int isp2100_init(struct Scsi_Host *sh) { u_int io_base; struct isp2100_hostdata *hostdata; u_char revision; u_int irq; u_short command; struct pci_dev *pdev; ENTER("isp2100_init"); hostdata = (struct isp2100_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 : error reading PCI configuration\n"); return 1; } io_base = pdev->base_address[0]; irq = pdev->irq; if (pdev->vendor != PCI_VENDOR_ID_QLOGIC) { printk("qlogicfc : 0x%04x is not QLogic vendor ID\n", pdev->vendor); return 1; } if (pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2100) { printk("qlogicfc : 0x%04x does not match ISP2100 device id\n", pdev->device); return 1; } if (command & PCI_COMMAND_IO && (io_base & 3) == 1) io_base &= PCI_BASE_ADDRESS_IO_MASK; else { printk("qlogicfc : i/o mapping is disabled\n"); return 1; } if (!(command & PCI_COMMAND_MASTER)) { printk("qlogicfc : bus mastering is disabled\n"); return 1; } if (revision != ISP2100_REV_ID && revision != ISP2100_REV_ID3) printk("qlogicfc : new isp2100 revision ID (%d)\n", revision); hostdata->revision = revision; sh->irq = irq; sh->io_port = io_base; LEAVE("isp2100_init"); return 0; } #if USE_NVRAM_DEFAULTS #define NVRAM_DELAY() udelay(10) /* 10 microsecond delay */ u_short isp2100_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 isp2100_mbox_command(struct Scsi_Host *host, u_short param[]) { int loop_count; struct isp2100_hostdata *hostdata = (struct isp2100_hostdata *) host->hostdata; if (mbox_param[param[0]] == 0) return 1; loop_count = DEFAULT_LOOP_COUNT; while (--loop_count && inw(host->io_port + HOST_HCCR) & 0x0080) barrier(); if (!loop_count) { printk("qlogicfc: mbox_command loop timeout #1\n"); param[0] = 0x4006; return 1; } hostdata->mbox_done = 0; if (mbox_param[param[0]] == 0) printk("qlogicfc: invalid mbox command\n"); 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(); } if (!loop_count) { printk("qlogicfc: mbox_command loop timeout #2\n"); break; } isp2100_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(); } if (!loop_count) printk("qlogicfc: mbox_command loop timeout #3\n"); 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) { printk("mbox op is still pending\n"); } return 0; } void isp2100_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", status->scsi_status, status->completion_status); printk("qlogicfc : state flags = 0x%04x, status flags = 0x%04x\n", status->state_flags, status->status_flags); printk("qlogicfc : response info length = 0x%04x, request sense length = 0x%04x\n", status->res_info_len, status->req_sense_len); printk("qlogicfc : residual transfer length = 0x%08x, response = 0x%02x\n", status->residual, status->res_info[3]); } #if DEBUG_ISP2100 void isp2100_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_ISP2100 */ #ifdef MODULE Scsi_Host_Template driver_template = QLOGICFC; #include "scsi_module.c" #endif |