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linux/drivers/scsi/qlogicfc.c
be7db055dd [PATCH] remove old scsi data direction macros 
these have been wrappers for the generic dma direction bits since 2.5.x.
This patch converts the few remaining drivers and removes the macros.

Arjan noticed there's some hunk in here that shouldn't.  Updated patch
below:

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-18 13:49:58 -05:00

2228 lines
66 KiB
C
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/*
* 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"
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