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linux / linux / kernel / git / davem / net-next / 4d78b6c78ae6d87e4c1c8072f42efa716f04afb9 / . / drivers / scsi / qlogicfc.c
blob: ddf0f4277ee8cd087b24b007afb07adcb1b085c3 [file] [log] [blame]
/*
* 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, 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,
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 == DMA_TO_DEVICE)
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,
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,
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,
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,
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,
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,
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"