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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/qlogicfc.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/scsi/qlogicfc.c')
-rw-r--r--drivers/scsi/qlogicfc.c2227
1 files changed, 2227 insertions, 0 deletions
diff --git a/drivers/scsi/qlogicfc.c b/drivers/scsi/qlogicfc.c
new file mode 100644
index 00000000000..24c1174b0c2
--- /dev/null
+++ b/drivers/scsi/qlogicfc.c
@@ -0,0 +1,2227 @@
+/*
+ * QLogic ISP2x00 SCSI-FCP
+ * Written by Erik H. Moe, ehm@cris.com
+ * Copyright 1995, Erik H. Moe
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+/* Renamed and updated to 1.3.x by Michael Griffith <grif@cs.ucr.edu> */
+
+/* This is a version of the isp1020 driver which was modified by
+ * Chris Loveland <cwl@iol.unh.edu> to support the isp2100 and isp2200
+ *
+ * Big endian support and dynamic DMA mapping added
+ * by Jakub Jelinek <jakub@redhat.com>.
+ *
+ * Conversion to final pci64 DMA interfaces
+ * by David S. Miller <davem@redhat.com>.
+ */
+
+/*
+ * $Date: 1995/09/22 02:23:15 $
+ * $Revision: 0.5 $
+ *
+ * $Log: isp1020.c,v $
+ * Revision 0.5 1995/09/22 02:23:15 root
+ * do auto request sense
+ *
+ * Revision 0.4 1995/08/07 04:44:33 root
+ * supply firmware with driver.
+ * numerous bug fixes/general cleanup of code.
+ *
+ * Revision 0.3 1995/07/16 16:15:39 root
+ * added reset/abort code.
+ *
+ * Revision 0.2 1995/06/29 03:14:19 root
+ * fixed biosparam.
+ * added queue protocol.
+ *
+ * Revision 0.1 1995/06/25 01:55:45 root
+ * Initial release.
+ *
+ */
+
+#include <linux/blkdev.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/unistd.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include "scsi.h"
+#include <scsi/scsi_host.h>
+
+#define pci64_dma_hi32(a) ((u32) (0xffffffff & (((u64)(a))>>32)))
+#define pci64_dma_lo32(a) ((u32) (0xffffffff & (((u64)(a)))))
+#define pci64_dma_build(hi,lo) \
+ ((dma_addr_t)(((u64)(lo))|(((u64)(hi))<<32)))
+
+/*
+ * With the qlogic interface, every queue slot can hold a SCSI
+ * command with up to 2 scatter/gather entries. If we need more
+ * than 2 entries, continuation entries can be used that hold
+ * another 5 entries each. Unlike for other drivers, this means
+ * that the maximum number of scatter/gather entries we can
+ * support at any given time is a function of the number of queue
+ * slots available. That is, host->can_queue and host->sg_tablesize
+ * are dynamic and _not_ independent. This all works fine because
+ * requests are queued serially and the scatter/gather limit is
+ * determined for each queue request anew.
+ */
+
+#define DATASEGS_PER_COMMAND 2
+#define DATASEGS_PER_CONT 5
+
+#define QLOGICFC_REQ_QUEUE_LEN 255 /* must be power of two - 1 */
+#define QLOGICFC_MAX_SG(ql) (DATASEGS_PER_COMMAND + (((ql) > 0) ? DATASEGS_PER_CONT*((ql) - 1) : 0))
+#define QLOGICFC_CMD_PER_LUN 8
+
+/* Configuration section **************************************************** */
+
+/* Set the following macro to 1 to reload the ISP2x00's firmware. This is
+ version 1.17.30 of the isp2100's firmware and version 2.00.40 of the
+ isp2200's firmware.
+*/
+
+#define USE_NVRAM_DEFAULTS 1
+
+#define ISP2x00_PORTDB 1
+
+/* Set the following to 1 to include fabric support, fabric support is
+ * currently not as well tested as the other aspects of the driver */
+
+#define ISP2x00_FABRIC 1
+
+/* Macros used for debugging */
+#define DEBUG_ISP2x00 0
+#define DEBUG_ISP2x00_INT 0
+#define DEBUG_ISP2x00_INTR 0
+#define DEBUG_ISP2x00_SETUP 0
+#define DEBUG_ISP2x00_FABRIC 0
+#define TRACE_ISP 0
+
+
+#define DEFAULT_LOOP_COUNT 1000000000
+
+#define ISP_TIMEOUT (2*HZ)
+/* End Configuration section ************************************************ */
+
+#include <linux/module.h>
+
+#if TRACE_ISP
+
+#define TRACE_BUF_LEN (32*1024)
+
+struct {
+ u_long next;
+ struct {
+ u_long time;
+ u_int index;
+ u_int addr;
+ u_char *name;
+ } buf[TRACE_BUF_LEN];
+} trace;
+
+#define TRACE(w, i, a) \
+{ \
+ unsigned long flags; \
+ \
+ save_flags(flags); \
+ cli(); \
+ trace.buf[trace.next].name = (w); \
+ trace.buf[trace.next].time = jiffies; \
+ trace.buf[trace.next].index = (i); \
+ trace.buf[trace.next].addr = (long) (a); \
+ trace.next = (trace.next + 1) & (TRACE_BUF_LEN - 1); \
+ restore_flags(flags); \
+}
+
+#else
+#define TRACE(w, i, a)
+#endif
+
+#if DEBUG_ISP2x00_FABRIC
+#define DEBUG_FABRIC(x) x
+#else
+#define DEBUG_FABRIC(x)
+#endif /* DEBUG_ISP2x00_FABRIC */
+
+
+#if DEBUG_ISP2x00
+#define ENTER(x) printk("isp2x00 : entering %s()\n", x);
+#define LEAVE(x) printk("isp2x00 : leaving %s()\n", x);
+#define DEBUG(x) x
+#else
+#define ENTER(x)
+#define LEAVE(x)
+#define DEBUG(x)
+#endif /* DEBUG_ISP2x00 */
+
+#if DEBUG_ISP2x00_INTR
+#define ENTER_INTR(x) printk("isp2x00 : entering %s()\n", x);
+#define LEAVE_INTR(x) printk("isp2x00 : leaving %s()\n", x);
+#define DEBUG_INTR(x) x
+#else
+#define ENTER_INTR(x)
+#define LEAVE_INTR(x)
+#define DEBUG_INTR(x)
+#endif /* DEBUG ISP2x00_INTR */
+
+
+#define ISP2100_REV_ID1 1
+#define ISP2100_REV_ID3 3
+#define ISP2200_REV_ID5 5
+
+/* host configuration and control registers */
+#define HOST_HCCR 0xc0 /* host command and control */
+
+/* pci bus interface registers */
+#define FLASH_BIOS_ADDR 0x00
+#define FLASH_BIOS_DATA 0x02
+#define ISP_CTRL_STATUS 0x06 /* configuration register #1 */
+#define PCI_INTER_CTL 0x08 /* pci interrupt control */
+#define PCI_INTER_STS 0x0a /* pci interrupt status */
+#define PCI_SEMAPHORE 0x0c /* pci semaphore */
+#define PCI_NVRAM 0x0e /* pci nvram interface */
+
+/* mailbox registers */
+#define MBOX0 0x10 /* mailbox 0 */
+#define MBOX1 0x12 /* mailbox 1 */
+#define MBOX2 0x14 /* mailbox 2 */
+#define MBOX3 0x16 /* mailbox 3 */
+#define MBOX4 0x18 /* mailbox 4 */
+#define MBOX5 0x1a /* mailbox 5 */
+#define MBOX6 0x1c /* mailbox 6 */
+#define MBOX7 0x1e /* mailbox 7 */
+
+/* mailbox command complete status codes */
+#define MBOX_COMMAND_COMPLETE 0x4000
+#define INVALID_COMMAND 0x4001
+#define HOST_INTERFACE_ERROR 0x4002
+#define TEST_FAILED 0x4003
+#define COMMAND_ERROR 0x4005
+#define COMMAND_PARAM_ERROR 0x4006
+#define PORT_ID_USED 0x4007
+#define LOOP_ID_USED 0x4008
+#define ALL_IDS_USED 0x4009
+
+/* async event status codes */
+#define RESET_DETECTED 0x8001
+#define SYSTEM_ERROR 0x8002
+#define REQUEST_TRANSFER_ERROR 0x8003
+#define RESPONSE_TRANSFER_ERROR 0x8004
+#define REQUEST_QUEUE_WAKEUP 0x8005
+#define LIP_OCCURRED 0x8010
+#define LOOP_UP 0x8011
+#define LOOP_DOWN 0x8012
+#define LIP_RECEIVED 0x8013
+#define PORT_DB_CHANGED 0x8014
+#define CHANGE_NOTIFICATION 0x8015
+#define SCSI_COMMAND_COMPLETE 0x8020
+#define POINT_TO_POINT_UP 0x8030
+#define CONNECTION_MODE 0x8036
+
+struct Entry_header {
+ u_char entry_type;
+ u_char entry_cnt;
+ u_char sys_def_1;
+ u_char flags;
+};
+
+/* entry header type commands */
+#define ENTRY_COMMAND 0x19
+#define ENTRY_CONTINUATION 0x0a
+
+#define ENTRY_STATUS 0x03
+#define ENTRY_MARKER 0x04
+
+
+/* entry header flag definitions */
+#define EFLAG_BUSY 2
+#define EFLAG_BAD_HEADER 4
+#define EFLAG_BAD_PAYLOAD 8
+
+struct dataseg {
+ u_int d_base;
+ u_int d_base_hi;
+ u_int d_count;
+};
+
+struct Command_Entry {
+ struct Entry_header hdr;
+ u_int handle;
+ u_char target_lun;
+ u_char target_id;
+ u_short expanded_lun;
+ u_short control_flags;
+ u_short rsvd2;
+ u_short time_out;
+ u_short segment_cnt;
+ u_char cdb[16];
+ u_int total_byte_cnt;
+ struct dataseg dataseg[DATASEGS_PER_COMMAND];
+};
+
+/* command entry control flag definitions */
+#define CFLAG_NODISC 0x01
+#define CFLAG_HEAD_TAG 0x02
+#define CFLAG_ORDERED_TAG 0x04
+#define CFLAG_SIMPLE_TAG 0x08
+#define CFLAG_TAR_RTN 0x10
+#define CFLAG_READ 0x20
+#define CFLAG_WRITE 0x40
+
+struct Continuation_Entry {
+ struct Entry_header hdr;
+ struct dataseg dataseg[DATASEGS_PER_CONT];
+};
+
+struct Marker_Entry {
+ struct Entry_header hdr;
+ u_int reserved;
+ u_char target_lun;
+ u_char target_id;
+ u_char modifier;
+ u_char expanded_lun;
+ u_char rsvds[52];
+};
+
+/* marker entry modifier definitions */
+#define SYNC_DEVICE 0
+#define SYNC_TARGET 1
+#define SYNC_ALL 2
+
+struct Status_Entry {
+ struct Entry_header hdr;
+ u_int handle;
+ u_short scsi_status;
+ u_short completion_status;
+ u_short state_flags;
+ u_short status_flags;
+ u_short res_info_len;
+ u_short req_sense_len;
+ u_int residual;
+ u_char res_info[8];
+ u_char req_sense_data[32];
+};
+
+/* status entry completion status definitions */
+#define CS_COMPLETE 0x0000
+#define CS_DMA_ERROR 0x0002
+#define CS_RESET_OCCURRED 0x0004
+#define CS_ABORTED 0x0005
+#define CS_TIMEOUT 0x0006
+#define CS_DATA_OVERRUN 0x0007
+#define CS_DATA_UNDERRUN 0x0015
+#define CS_QUEUE_FULL 0x001c
+#define CS_PORT_UNAVAILABLE 0x0028
+#define CS_PORT_LOGGED_OUT 0x0029
+#define CS_PORT_CONFIG_CHANGED 0x002a
+
+/* status entry state flag definitions */
+#define SF_SENT_CDB 0x0400
+#define SF_TRANSFERRED_DATA 0x0800
+#define SF_GOT_STATUS 0x1000
+
+/* status entry status flag definitions */
+#define STF_BUS_RESET 0x0008
+#define STF_DEVICE_RESET 0x0010
+#define STF_ABORTED 0x0020
+#define STF_TIMEOUT 0x0040
+
+/* interrupt control commands */
+#define ISP_EN_INT 0x8000
+#define ISP_EN_RISC 0x0008
+
+/* host control commands */
+#define HCCR_NOP 0x0000
+#define HCCR_RESET 0x1000
+#define HCCR_PAUSE 0x2000
+#define HCCR_RELEASE 0x3000
+#define HCCR_SINGLE_STEP 0x4000
+#define HCCR_SET_HOST_INTR 0x5000
+#define HCCR_CLEAR_HOST_INTR 0x6000
+#define HCCR_CLEAR_RISC_INTR 0x7000
+#define HCCR_BP_ENABLE 0x8000
+#define HCCR_BIOS_DISABLE 0x9000
+#define HCCR_TEST_MODE 0xf000
+
+#define RISC_BUSY 0x0004
+
+/* mailbox commands */
+#define MBOX_NO_OP 0x0000
+#define MBOX_LOAD_RAM 0x0001
+#define MBOX_EXEC_FIRMWARE 0x0002
+#define MBOX_DUMP_RAM 0x0003
+#define MBOX_WRITE_RAM_WORD 0x0004
+#define MBOX_READ_RAM_WORD 0x0005
+#define MBOX_MAILBOX_REG_TEST 0x0006
+#define MBOX_VERIFY_CHECKSUM 0x0007
+#define MBOX_ABOUT_FIRMWARE 0x0008
+#define MBOX_LOAD_RISC_RAM 0x0009
+#define MBOX_DUMP_RISC_RAM 0x000a
+#define MBOX_CHECK_FIRMWARE 0x000e
+#define MBOX_INIT_REQ_QUEUE 0x0010
+#define MBOX_INIT_RES_QUEUE 0x0011
+#define MBOX_EXECUTE_IOCB 0x0012
+#define MBOX_WAKE_UP 0x0013
+#define MBOX_STOP_FIRMWARE 0x0014
+#define MBOX_ABORT_IOCB 0x0015
+#define MBOX_ABORT_DEVICE 0x0016
+#define MBOX_ABORT_TARGET 0x0017
+#define MBOX_BUS_RESET 0x0018
+#define MBOX_STOP_QUEUE 0x0019
+#define MBOX_START_QUEUE 0x001a
+#define MBOX_SINGLE_STEP_QUEUE 0x001b
+#define MBOX_ABORT_QUEUE 0x001c
+#define MBOX_GET_DEV_QUEUE_STATUS 0x001d
+#define MBOX_GET_FIRMWARE_STATUS 0x001f
+#define MBOX_GET_INIT_SCSI_ID 0x0020
+#define MBOX_GET_RETRY_COUNT 0x0022
+#define MBOX_GET_TARGET_PARAMS 0x0028
+#define MBOX_GET_DEV_QUEUE_PARAMS 0x0029
+#define MBOX_SET_RETRY_COUNT 0x0032
+#define MBOX_SET_TARGET_PARAMS 0x0038
+#define MBOX_SET_DEV_QUEUE_PARAMS 0x0039
+#define MBOX_EXECUTE_IOCB64 0x0054
+#define MBOX_INIT_FIRMWARE 0x0060
+#define MBOX_GET_INIT_CB 0x0061
+#define MBOX_INIT_LIP 0x0062
+#define MBOX_GET_POS_MAP 0x0063
+#define MBOX_GET_PORT_DB 0x0064
+#define MBOX_CLEAR_ACA 0x0065
+#define MBOX_TARGET_RESET 0x0066
+#define MBOX_CLEAR_TASK_SET 0x0067
+#define MBOX_ABORT_TASK_SET 0x0068
+#define MBOX_GET_FIRMWARE_STATE 0x0069
+#define MBOX_GET_PORT_NAME 0x006a
+#define MBOX_SEND_SNS 0x006e
+#define MBOX_PORT_LOGIN 0x006f
+#define MBOX_SEND_CHANGE_REQUEST 0x0070
+#define MBOX_PORT_LOGOUT 0x0071
+
+/*
+ * Firmware if needed (note this is a hack, it belongs in a separate
+ * module.
+ */
+
+#ifdef CONFIG_SCSI_QLOGIC_FC_FIRMWARE
+#include "qlogicfc_asm.c"
+#else
+static unsigned short risc_code_addr01 = 0x1000 ;
+#endif
+
+/* Each element in mbox_param is an 8 bit bitmap where each bit indicates
+ if that mbox should be copied as input. For example 0x2 would mean
+ only copy mbox1. */
+
+static const u_char mbox_param[] =
+{
+ 0x01, /* MBOX_NO_OP */
+ 0x1f, /* MBOX_LOAD_RAM */
+ 0x03, /* MBOX_EXEC_FIRMWARE */
+ 0x1f, /* MBOX_DUMP_RAM */
+ 0x07, /* MBOX_WRITE_RAM_WORD */
+ 0x03, /* MBOX_READ_RAM_WORD */
+ 0xff, /* MBOX_MAILBOX_REG_TEST */
+ 0x03, /* MBOX_VERIFY_CHECKSUM */
+ 0x01, /* MBOX_ABOUT_FIRMWARE */
+ 0xff, /* MBOX_LOAD_RISC_RAM */
+ 0xff, /* MBOX_DUMP_RISC_RAM */
+ 0x00, /* 0x000b */
+ 0x00, /* 0x000c */
+ 0x00, /* 0x000d */
+ 0x01, /* MBOX_CHECK_FIRMWARE */
+ 0x00, /* 0x000f */
+ 0x1f, /* MBOX_INIT_REQ_QUEUE */
+ 0x2f, /* MBOX_INIT_RES_QUEUE */
+ 0x0f, /* MBOX_EXECUTE_IOCB */
+ 0x03, /* MBOX_WAKE_UP */
+ 0x01, /* MBOX_STOP_FIRMWARE */
+ 0x0f, /* MBOX_ABORT_IOCB */
+ 0x03, /* MBOX_ABORT_DEVICE */
+ 0x07, /* MBOX_ABORT_TARGET */
+ 0x03, /* MBOX_BUS_RESET */
+ 0x03, /* MBOX_STOP_QUEUE */
+ 0x03, /* MBOX_START_QUEUE */
+ 0x03, /* MBOX_SINGLE_STEP_QUEUE */
+ 0x03, /* MBOX_ABORT_QUEUE */
+ 0x03, /* MBOX_GET_DEV_QUEUE_STATUS */
+ 0x00, /* 0x001e */
+ 0x01, /* MBOX_GET_FIRMWARE_STATUS */
+ 0x01, /* MBOX_GET_INIT_SCSI_ID */
+ 0x00, /* 0x0021 */
+ 0x01, /* MBOX_GET_RETRY_COUNT */
+ 0x00, /* 0x0023 */
+ 0x00, /* 0x0024 */
+ 0x00, /* 0x0025 */
+ 0x00, /* 0x0026 */
+ 0x00, /* 0x0027 */
+ 0x03, /* MBOX_GET_TARGET_PARAMS */
+ 0x03, /* MBOX_GET_DEV_QUEUE_PARAMS */
+ 0x00, /* 0x002a */
+ 0x00, /* 0x002b */
+ 0x00, /* 0x002c */
+ 0x00, /* 0x002d */
+ 0x00, /* 0x002e */
+ 0x00, /* 0x002f */
+ 0x00, /* 0x0030 */
+ 0x00, /* 0x0031 */
+ 0x07, /* MBOX_SET_RETRY_COUNT */
+ 0x00, /* 0x0033 */
+ 0x00, /* 0x0034 */
+ 0x00, /* 0x0035 */
+ 0x00, /* 0x0036 */
+ 0x00, /* 0x0037 */
+ 0x0f, /* MBOX_SET_TARGET_PARAMS */
+ 0x0f, /* MBOX_SET_DEV_QUEUE_PARAMS */
+ 0x00, /* 0x003a */
+ 0x00, /* 0x003b */
+ 0x00, /* 0x003c */
+ 0x00, /* 0x003d */
+ 0x00, /* 0x003e */
+ 0x00, /* 0x003f */
+ 0x00, /* 0x0040 */
+ 0x00, /* 0x0041 */
+ 0x00, /* 0x0042 */
+ 0x00, /* 0x0043 */
+ 0x00, /* 0x0044 */
+ 0x00, /* 0x0045 */
+ 0x00, /* 0x0046 */
+ 0x00, /* 0x0047 */
+ 0x00, /* 0x0048 */
+ 0x00, /* 0x0049 */
+ 0x00, /* 0x004a */
+ 0x00, /* 0x004b */
+ 0x00, /* 0x004c */
+ 0x00, /* 0x004d */
+ 0x00, /* 0x004e */
+ 0x00, /* 0x004f */
+ 0x00, /* 0x0050 */
+ 0x00, /* 0x0051 */
+ 0x00, /* 0x0052 */
+ 0x00, /* 0x0053 */
+ 0xcf, /* MBOX_EXECUTE_IOCB64 */
+ 0x00, /* 0x0055 */
+ 0x00, /* 0x0056 */
+ 0x00, /* 0x0057 */
+ 0x00, /* 0x0058 */
+ 0x00, /* 0x0059 */
+ 0x00, /* 0x005a */
+ 0x00, /* 0x005b */
+ 0x00, /* 0x005c */
+ 0x00, /* 0x005d */
+ 0x00, /* 0x005e */
+ 0x00, /* 0x005f */
+ 0xff, /* MBOX_INIT_FIRMWARE */
+ 0xcd, /* MBOX_GET_INIT_CB */
+ 0x01, /* MBOX_INIT_LIP */
+ 0xcd, /* MBOX_GET_POS_MAP */
+ 0xcf, /* MBOX_GET_PORT_DB */
+ 0x03, /* MBOX_CLEAR_ACA */
+ 0x03, /* MBOX_TARGET_RESET */
+ 0x03, /* MBOX_CLEAR_TASK_SET */
+ 0x03, /* MBOX_ABORT_TASK_SET */
+ 0x01, /* MBOX_GET_FIRMWARE_STATE */
+ 0x03, /* MBOX_GET_PORT_NAME */
+ 0x00, /* 0x006b */
+ 0x00, /* 0x006c */
+ 0x00, /* 0x006d */
+ 0xcf, /* MBOX_SEND_SNS */
+ 0x0f, /* MBOX_PORT_LOGIN */
+ 0x03, /* MBOX_SEND_CHANGE_REQUEST */
+ 0x03, /* MBOX_PORT_LOGOUT */
+};
+
+#define MAX_MBOX_COMMAND (sizeof(mbox_param)/sizeof(u_short))
+
+
+struct id_name_map {
+ u64 wwn;
+ u_char loop_id;
+};
+
+struct sns_cb {
+ u_short len;
+ u_short res1;
+ u_int response_low;
+ u_int response_high;
+ u_short sub_len;
+ u_short res2;
+ u_char data[44];
+};
+
+/* address of instance of this struct is passed to adapter to initialize things
+ */
+struct init_cb {
+ u_char version;
+ u_char reseverd1[1];
+ u_short firm_opts;
+ u_short max_frame_len;
+ u_short max_iocb;
+ u_short exec_throttle;
+ u_char retry_cnt;
+ u_char retry_delay;
+ u_short node_name[4];
+ u_short hard_addr;
+ u_char reserved2[10];
+ u_short req_queue_out;
+ u_short res_queue_in;
+ u_short req_queue_len;
+ u_short res_queue_len;
+ u_int req_queue_addr_lo;
+ u_int req_queue_addr_high;
+ u_int res_queue_addr_lo;
+ u_int res_queue_addr_high;
+ /* the rest of this structure only applies to the isp2200 */
+ u_short lun_enables;
+ u_char cmd_resource_cnt;
+ u_char notify_resource_cnt;
+ u_short timeout;
+ u_short reserved3;
+ u_short add_firm_opts;
+ u_char res_accum_timer;
+ u_char irq_delay_timer;
+ u_short special_options;
+ u_short reserved4[13];
+};
+
+/*
+ * The result queue can be quite a bit smaller since continuation entries
+ * do not show up there:
+ */
+#define RES_QUEUE_LEN ((QLOGICFC_REQ_QUEUE_LEN + 1) / 8 - 1)
+#define QUEUE_ENTRY_LEN 64
+
+#if ISP2x00_FABRIC
+#define QLOGICFC_MAX_ID 0xff
+#else
+#define QLOGICFC_MAX_ID 0x7d
+#endif
+
+#define QLOGICFC_MAX_LUN 128
+#define QLOGICFC_MAX_LOOP_ID 0x7d
+
+/* the following connection options only apply to the 2200. i have only
+ * had success with LOOP_ONLY and P2P_ONLY.
+ */
+
+#define LOOP_ONLY 0
+#define P2P_ONLY 1
+#define LOOP_PREFERED 2
+#define P2P_PREFERED 3
+
+#define CONNECTION_PREFERENCE LOOP_ONLY
+
+/* adapter_state values */
+#define AS_FIRMWARE_DEAD -1
+#define AS_LOOP_DOWN 0
+#define AS_LOOP_GOOD 1
+#define AS_REDO_FABRIC_PORTDB 2
+#define AS_REDO_LOOP_PORTDB 4
+
+#define RES_SIZE ((RES_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN)
+#define REQ_SIZE ((QLOGICFC_REQ_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN)
+
+struct isp2x00_hostdata {
+ u_char revision;
+ struct pci_dev *pci_dev;
+ /* result and request queues (shared with isp2x00): */
+ u_int req_in_ptr; /* index of next request slot */
+ u_int res_out_ptr; /* index of next result slot */
+
+ /* this is here so the queues are nicely aligned */
+ long send_marker; /* do we need to send a marker? */
+
+ char * res;
+ char * req;
+ struct init_cb control_block;
+ int adapter_state;
+ unsigned long int tag_ages[QLOGICFC_MAX_ID + 1];
+ Scsi_Cmnd *handle_ptrs[QLOGICFC_REQ_QUEUE_LEN + 1];
+ unsigned long handle_serials[QLOGICFC_REQ_QUEUE_LEN + 1];
+ struct id_name_map port_db[QLOGICFC_MAX_ID + 1];
+ u_char mbox_done;
+ u64 wwn;
+ u_int port_id;
+ u_char queued;
+ u_char host_id;
+ struct timer_list explore_timer;
+ struct id_name_map tempmap[QLOGICFC_MAX_ID + 1];
+};
+
+
+/* queue length's _must_ be power of two: */
+#define QUEUE_DEPTH(in, out, ql) ((in - out) & (ql))
+#define REQ_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, \
+ QLOGICFC_REQ_QUEUE_LEN)
+#define RES_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, RES_QUEUE_LEN)
+
+static void isp2x00_enable_irqs(struct Scsi_Host *);
+static void isp2x00_disable_irqs(struct Scsi_Host *);
+static int isp2x00_init(struct Scsi_Host *);
+static int isp2x00_reset_hardware(struct Scsi_Host *);
+static int isp2x00_mbox_command(struct Scsi_Host *, u_short[]);
+static int isp2x00_return_status(Scsi_Cmnd *, struct Status_Entry *);
+static void isp2x00_intr_handler(int, void *, struct pt_regs *);
+static irqreturn_t do_isp2x00_intr_handler(int, void *, struct pt_regs *);
+static int isp2x00_make_portdb(struct Scsi_Host *);
+
+#if ISP2x00_FABRIC
+static int isp2x00_init_fabric(struct Scsi_Host *, struct id_name_map *, int);
+#endif
+
+#if USE_NVRAM_DEFAULTS
+static int isp2x00_get_nvram_defaults(struct Scsi_Host *, struct init_cb *);
+static u_short isp2x00_read_nvram_word(struct Scsi_Host *, u_short);
+#endif
+
+#if DEBUG_ISP2x00
+static void isp2x00_print_scsi_cmd(Scsi_Cmnd *);
+#endif
+
+#if DEBUG_ISP2x00_INTR
+static void isp2x00_print_status_entry(struct Status_Entry *);
+#endif
+
+static inline void isp2x00_enable_irqs(struct Scsi_Host *host)
+{
+ outw(ISP_EN_INT | ISP_EN_RISC, host->io_port + PCI_INTER_CTL);
+}
+
+
+static inline void isp2x00_disable_irqs(struct Scsi_Host *host)
+{
+ outw(0x0, host->io_port + PCI_INTER_CTL);
+}
+
+
+static int isp2x00_detect(Scsi_Host_Template * tmpt)
+{
+ int hosts = 0;
+ unsigned long wait_time;
+ struct Scsi_Host *host = NULL;
+ struct isp2x00_hostdata *hostdata;
+ struct pci_dev *pdev;
+ unsigned short device_ids[2];
+ dma_addr_t busaddr;
+ int i;
+
+
+ ENTER("isp2x00_detect");
+
+ device_ids[0] = PCI_DEVICE_ID_QLOGIC_ISP2100;
+ device_ids[1] = PCI_DEVICE_ID_QLOGIC_ISP2200;
+
+ tmpt->proc_name = "isp2x00";
+
+ for (i=0; i<2; i++){
+ pdev = NULL;
+ while ((pdev = pci_find_device(PCI_VENDOR_ID_QLOGIC, device_ids[i], pdev))) {
+ if (pci_enable_device(pdev))
+ continue;
+
+ /* Try to configure DMA attributes. */
+ if (pci_set_dma_mask(pdev, 0xffffffffffffffffULL) &&
+ pci_set_dma_mask(pdev, 0xffffffffULL))
+ continue;
+
+ host = scsi_register(tmpt, sizeof(struct isp2x00_hostdata));
+ if (!host) {
+ printk("qlogicfc%d : could not register host.\n", hosts);
+ continue;
+ }
+ scsi_set_device(host, &pdev->dev);
+ host->max_id = QLOGICFC_MAX_ID + 1;
+ host->max_lun = QLOGICFC_MAX_LUN;
+ hostdata = (struct isp2x00_hostdata *) host->hostdata;
+
+ memset(hostdata, 0, sizeof(struct isp2x00_hostdata));
+ hostdata->pci_dev = pdev;
+ hostdata->res = pci_alloc_consistent(pdev, RES_SIZE + REQ_SIZE, &busaddr);
+
+ if (!hostdata->res){
+ printk("qlogicfc%d : could not allocate memory for request and response queue.\n", hosts);
+ scsi_unregister(host);
+ continue;
+ }
+ hostdata->req = hostdata->res + (RES_QUEUE_LEN + 1)*QUEUE_ENTRY_LEN;
+ hostdata->queued = 0;
+ /* set up the control block */
+ hostdata->control_block.version = 0x1;
+ hostdata->control_block.firm_opts = cpu_to_le16(0x800e);
+ hostdata->control_block.max_frame_len = cpu_to_le16(2048);
+ hostdata->control_block.max_iocb = cpu_to_le16(QLOGICFC_REQ_QUEUE_LEN);
+ hostdata->control_block.exec_throttle = cpu_to_le16(QLOGICFC_CMD_PER_LUN);
+ hostdata->control_block.retry_delay = 5;
+ hostdata->control_block.retry_cnt = 1;
+ hostdata->control_block.node_name[0] = cpu_to_le16(0x0020);
+ hostdata->control_block.node_name[1] = cpu_to_le16(0xE000);
+ hostdata->control_block.node_name[2] = cpu_to_le16(0x008B);
+ hostdata->control_block.node_name[3] = cpu_to_le16(0x0000);
+ hostdata->control_block.hard_addr = cpu_to_le16(0x0003);
+ hostdata->control_block.req_queue_len = cpu_to_le16(QLOGICFC_REQ_QUEUE_LEN + 1);
+ hostdata->control_block.res_queue_len = cpu_to_le16(RES_QUEUE_LEN + 1);
+ hostdata->control_block.res_queue_addr_lo = cpu_to_le32(pci64_dma_lo32(busaddr));
+ hostdata->control_block.res_queue_addr_high = cpu_to_le32(pci64_dma_hi32(busaddr));
+ hostdata->control_block.req_queue_addr_lo = cpu_to_le32(pci64_dma_lo32(busaddr + RES_SIZE));
+ hostdata->control_block.req_queue_addr_high = cpu_to_le32(pci64_dma_hi32(busaddr + RES_SIZE));
+
+
+ hostdata->control_block.add_firm_opts |= cpu_to_le16(CONNECTION_PREFERENCE<<4);
+ hostdata->adapter_state = AS_LOOP_DOWN;
+ hostdata->explore_timer.data = 1;
+ hostdata->host_id = hosts;
+
+ if (isp2x00_init(host) || isp2x00_reset_hardware(host)) {
+ pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
+ scsi_unregister(host);
+ continue;
+ }
+ host->this_id = 0;
+
+ if (request_irq(host->irq, do_isp2x00_intr_handler, SA_INTERRUPT | SA_SHIRQ, "qlogicfc", host)) {
+ printk("qlogicfc%d : interrupt %d already in use\n",
+ hostdata->host_id, host->irq);
+ pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
+ scsi_unregister(host);
+ continue;
+ }
+ if (!request_region(host->io_port, 0xff, "qlogicfc")) {
+ printk("qlogicfc%d : i/o region 0x%lx-0x%lx already "
+ "in use\n",
+ hostdata->host_id, host->io_port, host->io_port + 0xff);
+ free_irq(host->irq, host);
+ pci_free_consistent (pdev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
+ scsi_unregister(host);
+ continue;
+ }
+
+ outw(0x0, host->io_port + PCI_SEMAPHORE);
+ outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
+ isp2x00_enable_irqs(host);
+ /* wait for the loop to come up */
+ for (wait_time = jiffies + 10 * HZ; time_before(jiffies, wait_time) && hostdata->adapter_state == AS_LOOP_DOWN;) {
+ barrier();
+ cpu_relax();
+ }
+ if (hostdata->adapter_state == AS_LOOP_DOWN) {
+ printk("qlogicfc%d : link is not up\n", hostdata->host_id);
+ }
+ hosts++;
+ hostdata->explore_timer.data = 0;
+ }
+ }
+
+
+ /* this busy loop should not be needed but the isp2x00 seems to need
+ some time before recognizing it is attached to a fabric */
+
+#if ISP2x00_FABRIC
+ if (hosts) {
+ for (wait_time = jiffies + 5 * HZ; time_before(jiffies, wait_time);) {
+ barrier();
+ cpu_relax();
+ }
+ }
+#endif
+
+ LEAVE("isp2x00_detect");
+
+ return hosts;
+}
+
+
+static int isp2x00_make_portdb(struct Scsi_Host *host)
+{
+
+ short param[8];
+ int i, j;
+ struct isp2x00_hostdata *hostdata;
+
+ isp2x00_disable_irqs(host);
+
+ hostdata = (struct isp2x00_hostdata *) host->hostdata;
+ memset(hostdata->tempmap, 0, sizeof(hostdata->tempmap));
+
+#if ISP2x00_FABRIC
+ for (i = 0x81; i < QLOGICFC_MAX_ID; i++) {
+ param[0] = MBOX_PORT_LOGOUT;
+ param[1] = i << 8;
+ param[2] = 0;
+ param[3] = 0;
+
+ isp2x00_mbox_command(host, param);
+
+ if (param[0] != MBOX_COMMAND_COMPLETE) {
+
+ DEBUG_FABRIC(printk("qlogicfc%d : logout failed %x %x\n", hostdata->host_id, i, param[0]));
+ }
+ }
+#endif
+
+
+ param[0] = MBOX_GET_INIT_SCSI_ID;
+
+ isp2x00_mbox_command(host, param);
+
+ if (param[0] == MBOX_COMMAND_COMPLETE) {
+ hostdata->port_id = ((u_int) param[3]) << 16;
+ hostdata->port_id |= param[2];
+ hostdata->tempmap[0].loop_id = param[1];
+ hostdata->tempmap[0].wwn = hostdata->wwn;
+ }
+ else {
+ printk("qlogicfc%d : error getting scsi id.\n", hostdata->host_id);
+ }
+
+ for (i = 0; i <=QLOGICFC_MAX_ID; i++)
+ hostdata->tempmap[i].loop_id = hostdata->tempmap[0].loop_id;
+
+ for (i = 0, j = 1; i <= QLOGICFC_MAX_LOOP_ID; i++) {
+ param[0] = MBOX_GET_PORT_NAME;
+ param[1] = (i << 8) & 0xff00;
+
+ isp2x00_mbox_command(host, param);
+
+ if (param[0] == MBOX_COMMAND_COMPLETE) {
+ hostdata->tempmap[j].loop_id = i;
+ hostdata->tempmap[j].wwn = ((u64) (param[2] & 0xff)) << 56;
+ hostdata->tempmap[j].wwn |= ((u64) ((param[2] >> 8) & 0xff)) << 48;
+ hostdata->tempmap[j].wwn |= ((u64) (param[3] & 0xff)) << 40;
+ hostdata->tempmap[j].wwn |= ((u64) ((param[3] >> 8) & 0xff)) << 32;
+ hostdata->tempmap[j].wwn |= ((u64) (param[6] & 0xff)) << 24;
+ hostdata->tempmap[j].wwn |= ((u64) ((param[6] >> 8) & 0xff)) << 16;
+ hostdata->tempmap[j].wwn |= ((u64) (param[7] & 0xff)) << 8;
+ hostdata->tempmap[j].wwn |= ((u64) ((param[7] >> 8) & 0xff));
+
+ j++;
+
+ }
+ }
+
+
+#if ISP2x00_FABRIC
+ isp2x00_init_fabric(host, hostdata->tempmap, j);
+#endif
+
+ for (i = 0; i <= QLOGICFC_MAX_ID; i++) {
+ if (hostdata->tempmap[i].wwn != hostdata->port_db[i].wwn) {
+ for (j = 0; j <= QLOGICFC_MAX_ID; j++) {
+ if (hostdata->tempmap[j].wwn == hostdata->port_db[i].wwn) {
+ hostdata->port_db[i].loop_id = hostdata->tempmap[j].loop_id;
+ break;
+ }
+ }
+ if (j == QLOGICFC_MAX_ID + 1)
+ hostdata->port_db[i].loop_id = hostdata->tempmap[0].loop_id;
+
+ for (j = 0; j <= QLOGICFC_MAX_ID; j++) {
+ if (hostdata->port_db[j].wwn == hostdata->tempmap[i].wwn || !hostdata->port_db[j].wwn) {
+ break;
+ }
+ }
+ if (j == QLOGICFC_MAX_ID + 1)
+ printk("qlogicfc%d : Too many scsi devices, no more room in port map.\n", hostdata->host_id);
+ if (!hostdata->port_db[j].wwn) {
+ hostdata->port_db[j].loop_id = hostdata->tempmap[i].loop_id;
+ hostdata->port_db[j].wwn = hostdata->tempmap[i].wwn;
+ }
+ } else
+ hostdata->port_db[i].loop_id = hostdata->tempmap[i].loop_id;
+
+ }
+
+ isp2x00_enable_irqs(host);
+
+ return 0;
+}
+
+
+#if ISP2x00_FABRIC
+
+#define FABRIC_PORT 0x7e
+#define FABRIC_CONTROLLER 0x7f
+#define FABRIC_SNS 0x80
+
+int isp2x00_init_fabric(struct Scsi_Host *host, struct id_name_map *port_db, int cur_scsi_id)
+{
+
+ u_short param[8];
+ u64 wwn;
+ int done = 0;
+ u_short loop_id = 0x81;
+ u_short scsi_id = cur_scsi_id;
+ u_int port_id;
+ struct sns_cb *req;
+ u_char *sns_response;
+ dma_addr_t busaddr;
+ struct isp2x00_hostdata *hostdata;
+
+ hostdata = (struct isp2x00_hostdata *) host->hostdata;
+
+ DEBUG_FABRIC(printk("qlogicfc%d : Checking for a fabric.\n", hostdata->host_id));
+ param[0] = MBOX_GET_PORT_NAME;
+ param[1] = (u16)FABRIC_PORT << 8;
+
+ isp2x00_mbox_command(host, param);
+
+ if (param[0] != MBOX_COMMAND_COMPLETE) {
+ DEBUG_FABRIC(printk("qlogicfc%d : fabric check result %x\n", hostdata->host_id, param[0]));
+ return 0;
+ }
+ printk("qlogicfc%d : Fabric found.\n", hostdata->host_id);
+
+ req = (struct sns_cb *)pci_alloc_consistent(hostdata->pci_dev, sizeof(*req) + 608, &busaddr);
+
+ if (!req){
+ printk("qlogicfc%d : Could not allocate DMA resources for fabric initialization\n", hostdata->host_id);
+ return 0;
+ }
+ sns_response = (u_char *)(req + 1);
+
+ if (hostdata->adapter_state & AS_REDO_LOOP_PORTDB){
+ memset(req, 0, sizeof(*req));
+
+ req->len = cpu_to_le16(8);
+ req->response_low = cpu_to_le32(pci64_dma_lo32(busaddr + sizeof(*req)));
+ req->response_high = cpu_to_le32(pci64_dma_hi32(busaddr + sizeof(*req)));
+ req->sub_len = cpu_to_le16(22);
+ req->data[0] = 0x17;
+ req->data[1] = 0x02;
+ req->data[8] = (u_char) (hostdata->port_id & 0xff);
+ req->data[9] = (u_char) (hostdata->port_id >> 8 & 0xff);
+ req->data[10] = (u_char) (hostdata->port_id >> 16 & 0xff);
+ req->data[13] = 0x01;
+ param[0] = MBOX_SEND_SNS;
+ param[1] = 30;
+ param[2] = pci64_dma_lo32(busaddr) >> 16;
+ param[3] = pci64_dma_lo32(busaddr);
+ param[6] = pci64_dma_hi32(busaddr) >> 16;
+ param[7] = pci64_dma_hi32(busaddr);
+
+ isp2x00_mbox_command(host, param);
+
+ if (param[0] != MBOX_COMMAND_COMPLETE)
+ printk("qlogicfc%d : error sending RFC-4\n", hostdata->host_id);
+ }
+
+ port_id = hostdata->port_id;
+ while (!done) {
+ memset(req, 0, sizeof(*req));
+
+ req->len = cpu_to_le16(304);
+ req->response_low = cpu_to_le32(pci64_dma_lo32(busaddr + sizeof(*req)));
+ req->response_high = cpu_to_le32(pci64_dma_hi32(busaddr + sizeof(*req)));
+ req->sub_len = cpu_to_le16(6);
+ req->data[0] = 0x00;
+ req->data[1] = 0x01;
+ req->data[8] = (u_char) (port_id & 0xff);
+ req->data[9] = (u_char) (port_id >> 8 & 0xff);
+ req->data[10] = (u_char) (port_id >> 16 & 0xff);
+
+ param[0] = MBOX_SEND_SNS;
+ param[1] = 14;
+ param[2] = pci64_dma_lo32(busaddr) >> 16;
+ param[3] = pci64_dma_lo32(busaddr);
+ param[6] = pci64_dma_hi32(busaddr) >> 16;
+ param[7] = pci64_dma_hi32(busaddr);
+
+ isp2x00_mbox_command(host, param);
+
+ if (param[0] == MBOX_COMMAND_COMPLETE) {
+ DEBUG_FABRIC(printk("qlogicfc%d : found node %02x%02x%02x%02x%02x%02x%02x%02x ", hostdata->host_id, sns_response[20], sns_response[21], sns_response[22], sns_response[23], sns_response[24], sns_response[25], sns_response[26], sns_response[27]));
+ DEBUG_FABRIC(printk(" port id: %02x%02x%02x\n", sns_response[17], sns_response[18], sns_response[19]));
+ port_id = ((u_int) sns_response[17]) << 16;
+ port_id |= ((u_int) sns_response[18]) << 8;
+ port_id |= ((u_int) sns_response[19]);
+ wwn = ((u64) sns_response[20]) << 56;
+ wwn |= ((u64) sns_response[21]) << 48;
+ wwn |= ((u64) sns_response[22]) << 40;
+ wwn |= ((u64) sns_response[23]) << 32;
+ wwn |= ((u64) sns_response[24]) << 24;
+ wwn |= ((u64) sns_response[25]) << 16;
+ wwn |= ((u64) sns_response[26]) << 8;
+ wwn |= ((u64) sns_response[27]);
+ if (hostdata->port_id >> 8 != port_id >> 8) {
+ DEBUG_FABRIC(printk("qlogicfc%d : adding a fabric port: %x\n", hostdata->host_id, port_id));
+ param[0] = MBOX_PORT_LOGIN;
+ param[1] = loop_id << 8;
+ param[2] = (u_short) (port_id >> 16);
+ param[3] = (u_short) (port_id);
+
+ isp2x00_mbox_command(host, param);
+
+ if (param[0] == MBOX_COMMAND_COMPLETE) {
+ port_db[scsi_id].wwn = wwn;
+ port_db[scsi_id].loop_id = loop_id;
+ loop_id++;
+ scsi_id++;
+ } else {
+ printk("qlogicfc%d : Error performing port login %x\n", hostdata->host_id, param[0]);
+ DEBUG_FABRIC(printk("qlogicfc%d : loop_id: %x\n", hostdata->host_id, loop_id));
+ param[0] = MBOX_PORT_LOGOUT;
+ param[1] = loop_id << 8;
+ param[2] = 0;
+ param[3] = 0;
+
+ isp2x00_mbox_command(host, param);
+
+ }
+
+ }
+ if (hostdata->port_id == port_id)
+ done = 1;
+ } else {
+ printk("qlogicfc%d : Get All Next failed %x.\n", hostdata->host_id, param[0]);
+ pci_free_consistent(hostdata->pci_dev, sizeof(*req) + 608, req, busaddr);
+ return 0;
+ }
+ }
+
+ pci_free_consistent(hostdata->pci_dev, sizeof(*req) + 608, req, busaddr);
+ return 1;
+}
+
+#endif /* ISP2x00_FABRIC */
+
+
+static int isp2x00_release(struct Scsi_Host *host)
+{
+ struct isp2x00_hostdata *hostdata;
+ dma_addr_t busaddr;
+
+ ENTER("isp2x00_release");
+
+ hostdata = (struct isp2x00_hostdata *) host->hostdata;
+
+ outw(0x0, host->io_port + PCI_INTER_CTL);
+ free_irq(host->irq, host);
+
+ release_region(host->io_port, 0xff);
+
+ busaddr = pci64_dma_build(le32_to_cpu(hostdata->control_block.res_queue_addr_high),
+ le32_to_cpu(hostdata->control_block.res_queue_addr_lo));
+ pci_free_consistent(hostdata->pci_dev, RES_SIZE + REQ_SIZE, hostdata->res, busaddr);
+
+ LEAVE("isp2x00_release");
+
+ return 0;
+}
+
+
+static const char *isp2x00_info(struct Scsi_Host *host)
+{
+ static char buf[80];
+ struct isp2x00_hostdata *hostdata;
+ ENTER("isp2x00_info");
+
+ hostdata = (struct isp2x00_hostdata *) host->hostdata;
+ sprintf(buf,
+ "QLogic ISP%04x SCSI on PCI bus %02x device %02x irq %d base 0x%lx",
+ hostdata->pci_dev->device, hostdata->pci_dev->bus->number, hostdata->pci_dev->devfn, host->irq,
+ host->io_port);
+
+
+ LEAVE("isp2x00_info");
+
+ return buf;
+}
+
+
+/*
+ * The middle SCSI layer ensures that queuecommand never gets invoked
+ * concurrently with itself or the interrupt handler (though the
+ * interrupt handler may call this routine as part of
+ * request-completion handling).
+ */
+static int isp2x00_queuecommand(Scsi_Cmnd * Cmnd, void (*done) (Scsi_Cmnd *))
+{
+ int i, sg_count, n, num_free;
+ u_int in_ptr, out_ptr;
+ struct dataseg *ds;
+ struct scatterlist *sg;
+ struct Command_Entry *cmd;
+ struct Continuation_Entry *cont;
+ struct Scsi_Host *host;
+ struct isp2x00_hostdata *hostdata;
+
+ ENTER("isp2x00_queuecommand");
+
+ host = Cmnd->device->host;
+ hostdata = (struct isp2x00_hostdata *) host->hostdata;
+ Cmnd->scsi_done = done;
+
+ DEBUG(isp2x00_print_scsi_cmd(Cmnd));
+
+ if (hostdata->adapter_state & AS_REDO_FABRIC_PORTDB || hostdata->adapter_state & AS_REDO_LOOP_PORTDB) {
+ isp2x00_make_portdb(host);
+ hostdata->adapter_state = AS_LOOP_GOOD;
+ printk("qlogicfc%d : Port Database\n", hostdata->host_id);
+ for (i = 0; hostdata->port_db[i].wwn != 0; i++) {
+ printk("wwn: %08x%08x scsi_id: %x loop_id: ", (u_int) (hostdata->port_db[i].wwn >> 32), (u_int) hostdata->port_db[i].wwn, i);
+ if (hostdata->port_db[i].loop_id != hostdata->port_db[0].loop_id || i == 0)
+ printk("%x", hostdata->port_db[i].loop_id);
+ else
+ printk("Not Available");
+ printk("\n");
+ }
+ }
+ if (hostdata->adapter_state == AS_FIRMWARE_DEAD) {
+ printk("qlogicfc%d : The firmware is dead, just return.\n", hostdata->host_id);
+ host->max_id = 0;
+ return 0;
+ }
+
+ out_ptr = inw(host->io_port + MBOX4);
+ in_ptr = hostdata->req_in_ptr;
+
+ DEBUG(printk("qlogicfc%d : request queue depth %d\n", hostdata->host_id,
+ REQ_QUEUE_DEPTH(in_ptr, out_ptr)));
+
+ cmd = (struct Command_Entry *) &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
+ in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
+ if (in_ptr == out_ptr) {
+ DEBUG(printk("qlogicfc%d : request queue overflow\n", hostdata->host_id));
+ return 1;
+ }
+ if (hostdata->send_marker) {
+ struct Marker_Entry *marker;
+
+ TRACE("queue marker", in_ptr, 0);
+
+ DEBUG(printk("qlogicfc%d : adding marker entry\n", hostdata->host_id));
+ marker = (struct Marker_Entry *) cmd;
+ memset(marker, 0, sizeof(struct Marker_Entry));
+
+ marker->hdr.entry_type = ENTRY_MARKER;
+ marker->hdr.entry_cnt = 1;
+ marker->modifier = SYNC_ALL;
+
+ hostdata->send_marker = 0;
+
+ if (((in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN) == out_ptr) {
+ outw(in_ptr, host->io_port + MBOX4);
+ hostdata->req_in_ptr = in_ptr;
+ DEBUG(printk("qlogicfc%d : request queue overflow\n", hostdata->host_id));
+ return 1;
+ }
+ cmd = (struct Command_Entry *) &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
+ in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
+ }
+ TRACE("queue command", in_ptr, Cmnd);
+
+ memset(cmd, 0, sizeof(struct Command_Entry));
+
+ /* find a free handle mapping slot */
+ for (i = in_ptr; i != (in_ptr - 1) && hostdata->handle_ptrs[i]; i = ((i + 1) % (QLOGICFC_REQ_QUEUE_LEN + 1)));
+
+ if (!hostdata->handle_ptrs[i]) {
+ cmd->handle = cpu_to_le32(i);
+ hostdata->handle_ptrs[i] = Cmnd;
+ hostdata->handle_serials[i] = Cmnd->serial_number;
+ } else {
+ printk("qlogicfc%d : no handle slots, this should not happen.\n", hostdata->host_id);
+ printk("hostdata->queued is %x, in_ptr: %x\n", hostdata->queued, in_ptr);
+ for (i = 0; i <= QLOGICFC_REQ_QUEUE_LEN; i++){
+ if (!hostdata->handle_ptrs[i]){
+ printk("slot %d has %p\n", i, hostdata->handle_ptrs[i]);
+ }
+ }
+ return 1;
+ }
+
+ cmd->hdr.entry_type = ENTRY_COMMAND;
+ cmd->hdr.entry_cnt = 1;
+ cmd->target_lun = Cmnd->device->lun;
+ cmd->expanded_lun = cpu_to_le16(Cmnd->device->lun);
+#if ISP2x00_PORTDB
+ cmd->target_id = hostdata->port_db[Cmnd->device->id].loop_id;
+#else
+ cmd->target_id = Cmnd->target;
+#endif
+ cmd->total_byte_cnt = cpu_to_le32(Cmnd->request_bufflen);
+ cmd->time_out = 0;
+ memcpy(cmd->cdb, Cmnd->cmnd, Cmnd->cmd_len);
+
+ if (Cmnd->use_sg) {
+ sg = (struct scatterlist *) Cmnd->request_buffer;
+ sg_count = pci_map_sg(hostdata->pci_dev, sg, Cmnd->use_sg, scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
+ cmd->segment_cnt = cpu_to_le16(sg_count);
+ ds = cmd->dataseg;
+ /* fill in first two sg entries: */
+ n = sg_count;
+ if (n > DATASEGS_PER_COMMAND)
+ n = DATASEGS_PER_COMMAND;
+
+ for (i = 0; i < n; i++) {
+ ds[i].d_base = cpu_to_le32(pci64_dma_lo32(sg_dma_address(sg)));
+ ds[i].d_base_hi = cpu_to_le32(pci64_dma_hi32(sg_dma_address(sg)));
+ ds[i].d_count = cpu_to_le32(sg_dma_len(sg));
+ ++sg;
+ }
+ sg_count -= DATASEGS_PER_COMMAND;
+
+ while (sg_count > 0) {
+ ++cmd->hdr.entry_cnt;
+ cont = (struct Continuation_Entry *)
+ &hostdata->req[in_ptr*QUEUE_ENTRY_LEN];
+ memset(cont, 0, sizeof(struct Continuation_Entry));
+ in_ptr = (in_ptr + 1) & QLOGICFC_REQ_QUEUE_LEN;
+ if (in_ptr == out_ptr) {
+ DEBUG(printk("qlogicfc%d : unexpected request queue overflow\n", hostdata->host_id));
+ return 1;
+ }
+ TRACE("queue continuation", in_ptr, 0);
+ cont->hdr.entry_type = ENTRY_CONTINUATION;
+ ds = cont->dataseg;
+ n = sg_count;
+ if (n > DATASEGS_PER_CONT)
+ n = DATASEGS_PER_CONT;
+ for (i = 0; i < n; ++i) {
+ ds[i].d_base = cpu_to_le32(pci64_dma_lo32(sg_dma_address(sg)));
+ ds[i].d_base_hi = cpu_to_le32(pci64_dma_hi32(sg_dma_address(sg)));
+ ds[i].d_count = cpu_to_le32(sg_dma_len(sg));
+ ++sg;
+ }
+ sg_count -= n;
+ }
+ } else if (Cmnd->request_bufflen && Cmnd->sc_data_direction != PCI_DMA_NONE) {
+ struct page *page = virt_to_page(Cmnd->request_buffer);
+ unsigned long offset = offset_in_page(Cmnd->request_buffer);
+ dma_addr_t busaddr = pci_map_page(hostdata->pci_dev,
+ page, offset,
+ Cmnd->request_bufflen,
+ scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
+ Cmnd->SCp.dma_handle = busaddr;
+
+ cmd->dataseg[0].d_base = cpu_to_le32(pci64_dma_lo32(busaddr));
+ cmd->dataseg[0].d_base_hi = cpu_to_le32(pci64_dma_hi32(busaddr));
+ cmd->dataseg[0].d_count = cpu_to_le32(Cmnd->request_bufflen);
+ cmd->segment_cnt = cpu_to_le16(1);
+ } else {
+ cmd->dataseg[0].d_base = 0;
+ cmd->dataseg[0].d_base_hi = 0;
+ cmd->segment_cnt = cpu_to_le16(1); /* Shouldn't this be 0? */
+ }
+
+ if (Cmnd->sc_data_direction == SCSI_DATA_WRITE)
+ cmd->control_flags = cpu_to_le16(CFLAG_WRITE);
+ else
+ cmd->control_flags = cpu_to_le16(CFLAG_READ);
+
+ if (Cmnd->device->tagged_supported) {
+ if ((jiffies - hostdata->tag_ages[Cmnd->device->id]) > (2 * ISP_TIMEOUT)) {
+ cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG);
+ hostdata->tag_ages[Cmnd->device->id] = jiffies;
+ } else
+ switch (Cmnd->tag) {
+ case HEAD_OF_QUEUE_TAG:
+ cmd->control_flags |= cpu_to_le16(CFLAG_HEAD_TAG);
+ break;
+ case ORDERED_QUEUE_TAG:
+ cmd->control_flags |= cpu_to_le16(CFLAG_ORDERED_TAG);
+ break;
+ default:
+ cmd->control_flags |= cpu_to_le16(CFLAG_SIMPLE_TAG);
+ break;
+ }
+ }
+ /*
+ * TEST_UNIT_READY commands from scsi_scan will fail due to "overlapped
+ * commands attempted" unless we setup at least a simple queue (midlayer
+ * will embelish this once it can do an INQUIRY command to the device)
+ */
+ else
+ cmd->control_flags |= cpu_to_le16(CFLAG_SIMPLE_TAG);
+ outw(in_ptr, host->io_port + MBOX4);
+ hostdata->req_in_ptr = in_ptr;
+
+ hostdata->queued++;
+
+ num_free = QLOGICFC_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr);
+ num_free = (num_free > 2) ? num_free - 2 : 0;
+ host->can_queue = host->host_busy + num_free;
+ if (host->can_queue > QLOGICFC_REQ_QUEUE_LEN)
+ host->can_queue = QLOGICFC_REQ_QUEUE_LEN;
+ host->sg_tablesize = QLOGICFC_MAX_SG(num_free);
+
+ LEAVE("isp2x00_queuecommand");
+
+ return 0;
+}
+
+
+/* we have received an event, such as a lip or an RSCN, which may mean that
+ * our port database is incorrect so the port database must be recreated.
+ */
+static void redo_port_db(unsigned long arg)
+{
+
+ struct Scsi_Host * host = (struct Scsi_Host *) arg;
+ struct isp2x00_hostdata * hostdata;
+ unsigned long flags;
+ int i;
+
+ hostdata = (struct isp2x00_hostdata *) host->hostdata;
+ hostdata->explore_timer.data = 0;
+ del_timer(&hostdata->explore_timer);
+
+ spin_lock_irqsave(host->host_lock, flags);
+
+ if (hostdata->adapter_state & AS_REDO_FABRIC_PORTDB || hostdata->adapter_state & AS_REDO_LOOP_PORTDB) {
+ isp2x00_make_portdb(host);
+ printk("qlogicfc%d : Port Database\n", hostdata->host_id);
+ for (i = 0; hostdata->port_db[i].wwn != 0; i++) {
+ printk("wwn: %08x%08x scsi_id: %x loop_id: ", (u_int) (hostdata->port_db[i].wwn >> 32), (u_int) hostdata->port_db[i].wwn, i);
+ if (hostdata->port_db[i].loop_id != hostdata->port_db[0].loop_id || i == 0)
+ printk("%x", hostdata->port_db[i].loop_id);
+ else
+ printk("Not Available");
+ printk("\n");
+ }
+
+ for (i = 0; i < QLOGICFC_REQ_QUEUE_LEN; i++){
+ if (hostdata->handle_ptrs[i] && (hostdata->port_db[hostdata->handle_ptrs[i]->device->id].loop_id > QLOGICFC_MAX_LOOP_ID || hostdata->adapter_state & AS_REDO_LOOP_PORTDB)){
+ if (hostdata->port_db[hostdata->handle_ptrs[i]->device->id].loop_id != hostdata->port_db[0].loop_id){
+ Scsi_Cmnd *Cmnd = hostdata->handle_ptrs[i];
+
+ if (Cmnd->use_sg)
+ pci_unmap_sg(hostdata->pci_dev,
+ (struct scatterlist *)Cmnd->buffer,
+ Cmnd->use_sg,
+ scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
+ else if (Cmnd->request_bufflen &&
+ Cmnd->sc_data_direction != PCI_DMA_NONE) {
+ pci_unmap_page(hostdata->pci_dev,
+ Cmnd->SCp.dma_handle,
+ Cmnd->request_bufflen,
+ scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
+ }
+
+ hostdata->handle_ptrs[i]->result = DID_SOFT_ERROR << 16;
+
+ if (hostdata->handle_ptrs[i]->scsi_done){
+ (*hostdata->handle_ptrs[i]->scsi_done) (hostdata->handle_ptrs[i]);
+ }
+ else printk("qlogicfc%d : done is null?\n", hostdata->host_id);
+ hostdata->handle_ptrs[i] = NULL;
+ hostdata->handle_serials[i] = 0;
+ }
+ }
+ }
+
+ hostdata->adapter_state = AS_LOOP_GOOD;
+ }
+
+ spin_unlock_irqrestore(host->host_lock, flags);
+
+}
+
+#define ASYNC_EVENT_INTERRUPT 0x01
+
+irqreturn_t do_isp2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct Scsi_Host *host = dev_id;
+ unsigned long flags;
+
+ spin_lock_irqsave(host->host_lock, flags);
+ isp2x00_intr_handler(irq, dev_id, regs);
+ spin_unlock_irqrestore(host->host_lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+void isp2x00_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+ Scsi_Cmnd *Cmnd;
+ struct Status_Entry *sts;
+ struct Scsi_Host *host = dev_id;
+ struct isp2x00_hostdata *hostdata;
+ u_int in_ptr, out_ptr, handle, num_free;
+ u_short status;
+
+ ENTER_INTR("isp2x00_intr_handler");
+
+ hostdata = (struct isp2x00_hostdata *) host->hostdata;
+
+ DEBUG_INTR(printk("qlogicfc%d : interrupt on line %d\n", hostdata->host_id, irq));
+
+ if (!(inw(host->io_port + PCI_INTER_STS) & 0x08)) {
+ /* spurious interrupts can happen legally */
+ DEBUG_INTR(printk("qlogicfc%d : got spurious interrupt\n", hostdata->host_id));
+ return;
+ }
+ in_ptr = inw(host->io_port + MBOX5);
+ out_ptr = hostdata->res_out_ptr;
+
+ if ((inw(host->io_port + PCI_SEMAPHORE) & ASYNC_EVENT_INTERRUPT)) {
+ status = inw(host->io_port + MBOX0);
+
+ DEBUG_INTR(printk("qlogicfc%d : mbox completion status: %x\n",
+ hostdata->host_id, status));
+
+ switch (status) {
+ case LOOP_UP:
+ case POINT_TO_POINT_UP:
+ printk("qlogicfc%d : Link is Up\n", hostdata->host_id);
+ hostdata->adapter_state = AS_REDO_FABRIC_PORTDB | AS_REDO_LOOP_PORTDB;
+ break;
+ case LOOP_DOWN:
+ printk("qlogicfc%d : Link is Down\n", hostdata->host_id);
+ hostdata->adapter_state = AS_LOOP_DOWN;
+ break;
+ case CONNECTION_MODE:
+ printk("received CONNECTION_MODE irq %x\n", inw(host->io_port + MBOX1));
+ break;
+ case CHANGE_NOTIFICATION:
+ printk("qlogicfc%d : RSCN Received\n", hostdata->host_id);
+ if (hostdata->adapter_state == AS_LOOP_GOOD)
+ hostdata->adapter_state = AS_REDO_FABRIC_PORTDB;
+ break;
+ case LIP_OCCURRED:
+ case LIP_RECEIVED:
+ printk("qlogicfc%d : Loop Reinitialized\n", hostdata->host_id);
+ if (hostdata->adapter_state == AS_LOOP_GOOD)
+ hostdata->adapter_state = AS_REDO_LOOP_PORTDB;
+ break;
+ case SYSTEM_ERROR:
+ printk("qlogicfc%d : The firmware just choked.\n", hostdata->host_id);
+ hostdata->adapter_state = AS_FIRMWARE_DEAD;
+ break;
+ case SCSI_COMMAND_COMPLETE:
+ handle = inw(host->io_port + MBOX1) | (inw(host->io_port + MBOX2) << 16);
+ Cmnd = hostdata->handle_ptrs[handle];
+ hostdata->handle_ptrs[handle] = NULL;
+ hostdata->handle_serials[handle] = 0;
+ hostdata->queued--;
+ if (Cmnd != NULL) {
+ if (Cmnd->use_sg)
+ pci_unmap_sg(hostdata->pci_dev,
+ (struct scatterlist *)Cmnd->buffer,
+ Cmnd->use_sg,
+ scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
+ else if (Cmnd->request_bufflen &&
+ Cmnd->sc_data_direction != PCI_DMA_NONE)
+ pci_unmap_page(hostdata->pci_dev,
+ Cmnd->SCp.dma_handle,
+ Cmnd->request_bufflen,
+ scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
+ Cmnd->result = 0x0;
+ (*Cmnd->scsi_done) (Cmnd);
+ } else
+ printk("qlogicfc%d.c : got a null value out of handle_ptrs, this sucks\n", hostdata->host_id);
+ break;
+ case MBOX_COMMAND_COMPLETE:
+ case INVALID_COMMAND:
+ case HOST_INTERFACE_ERROR:
+ case TEST_FAILED:
+ case COMMAND_ERROR:
+ case COMMAND_PARAM_ERROR:
+ case PORT_ID_USED:
+ case LOOP_ID_USED:
+ case ALL_IDS_USED:
+ hostdata->mbox_done = 1;
+ outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
+ return;
+ default:
+ printk("qlogicfc%d : got an unknown status? %x\n", hostdata->host_id, status);
+ }
+ if ((hostdata->adapter_state & AS_REDO_LOOP_PORTDB || hostdata->adapter_state & AS_REDO_FABRIC_PORTDB) && hostdata->explore_timer.data == 0){
+ hostdata->explore_timer.function = redo_port_db;
+ hostdata->explore_timer.data = (unsigned long)host;
+ hostdata->explore_timer.expires = jiffies + (HZ/4);
+ init_timer(&hostdata->explore_timer);
+ add_timer(&hostdata->explore_timer);
+ }
+ outw(0x0, host->io_port + PCI_SEMAPHORE);
+ } else {
+ DEBUG_INTR(printk("qlogicfc%d : response queue update\n", hostdata->host_id));
+ DEBUG_INTR(printk("qlogicfc%d : response queue depth %d\n", hostdata->host_id, RES_QUEUE_DEPTH(in_ptr, out_ptr)));
+
+ while (out_ptr != in_ptr) {
+ unsigned le_hand;
+ sts = (struct Status_Entry *) &hostdata->res[out_ptr*QUEUE_ENTRY_LEN];
+ out_ptr = (out_ptr + 1) & RES_QUEUE_LEN;
+
+ TRACE("done", out_ptr, Cmnd);
+ DEBUG_INTR(isp2x00_print_status_entry(sts));
+ le_hand = le32_to_cpu(sts->handle);
+ if (sts->hdr.entry_type == ENTRY_STATUS && (Cmnd = hostdata->handle_ptrs[le_hand])) {
+ Cmnd->result = isp2x00_return_status(Cmnd, sts);
+ hostdata->queued--;
+
+ if (Cmnd->use_sg)
+ pci_unmap_sg(hostdata->pci_dev,
+ (struct scatterlist *)Cmnd->buffer, Cmnd->use_sg,
+ scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
+ else if (Cmnd->request_bufflen && Cmnd->sc_data_direction != PCI_DMA_NONE)
+ pci_unmap_page(hostdata->pci_dev,
+ Cmnd->SCp.dma_handle,
+ Cmnd->request_bufflen,
+ scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
+
+ /*
+ * if any of the following are true we do not
+ * call scsi_done. if the status is CS_ABORTED
+ * we don't have to call done because the upper
+ * level should already know its aborted.
+ */
+ if (hostdata->handle_serials[le_hand] != Cmnd->serial_number
+ || le16_to_cpu(sts->completion_status) == CS_ABORTED){
+ hostdata->handle_serials[le_hand] = 0;
+ hostdata->handle_ptrs[le_hand] = NULL;
+ outw(out_ptr, host->io_port + MBOX5);
+ continue;
+ }
+ /*
+ * if we get back an error indicating the port
+ * is not there or if the link is down and
+ * this is a device that used to be there
+ * allow the command to timeout.
+ * the device may well be back in a couple of
+ * seconds.
+ */
+ if ((hostdata->adapter_state == AS_LOOP_DOWN || sts->completion_status == cpu_to_le16(CS_PORT_UNAVAILABLE) || sts->completion_status == cpu_to_le16(CS_PORT_LOGGED_OUT) || sts->completion_status == cpu_to_le16(CS_PORT_CONFIG_CHANGED)) && hostdata->port_db[Cmnd->device->id].wwn){
+ outw(out_ptr, host->io_port + MBOX5);
+ continue;
+ }
+ } else {
+ outw(out_ptr, host->io_port + MBOX5);
+ continue;
+ }
+
+ hostdata->handle_ptrs[le_hand] = NULL;
+
+ if (sts->completion_status == cpu_to_le16(CS_RESET_OCCURRED)
+ || (sts->status_flags & cpu_to_le16(STF_BUS_RESET)))
+ hostdata->send_marker = 1;
+
+ if (le16_to_cpu(sts->scsi_status) & 0x0200)
+ memcpy(Cmnd->sense_buffer, sts->req_sense_data,
+ sizeof(Cmnd->sense_buffer));
+
+ outw(out_ptr, host->io_port + MBOX5);
+
+ if (Cmnd->scsi_done != NULL) {
+ (*Cmnd->scsi_done) (Cmnd);
+ } else
+ printk("qlogicfc%d : Ouch, scsi done is NULL\n", hostdata->host_id);
+ }
+ hostdata->res_out_ptr = out_ptr;
+ }
+
+
+ out_ptr = inw(host->io_port + MBOX4);
+ in_ptr = hostdata->req_in_ptr;
+
+ num_free = QLOGICFC_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr);
+ num_free = (num_free > 2) ? num_free - 2 : 0;
+ host->can_queue = host->host_busy + num_free;
+ if (host->can_queue > QLOGICFC_REQ_QUEUE_LEN)
+ host->can_queue = QLOGICFC_REQ_QUEUE_LEN;
+ host->sg_tablesize = QLOGICFC_MAX_SG(num_free);
+
+ outw(HCCR_CLEAR_RISC_INTR, host->io_port + HOST_HCCR);
+ LEAVE_INTR("isp2x00_intr_handler");
+}
+
+
+static int isp2x00_return_status(Scsi_Cmnd *Cmnd, struct Status_Entry *sts)
+{
+ int host_status = DID_ERROR;
+#if DEBUG_ISP2x00_INTR
+ static char *reason[] =
+ {
+ "DID_OK",
+ "DID_NO_CONNECT",
+ "DID_BUS_BUSY",
+ "DID_TIME_OUT",
+ "DID_BAD_TARGET",
+ "DID_ABORT",
+ "DID_PARITY",
+ "DID_ERROR",
+ "DID_RESET",
+ "DID_BAD_INTR"
+ };
+#endif /* DEBUG_ISP2x00_INTR */
+
+ ENTER("isp2x00_return_status");
+
+ DEBUG(printk("qlogicfc : completion status = 0x%04x\n",
+ le16_to_cpu(sts->completion_status)));
+
+ switch (le16_to_cpu(sts->completion_status)) {
+ case CS_COMPLETE:
+ host_status = DID_OK;
+ break;
+ case CS_DMA_ERROR:
+ host_status = DID_ERROR;
+ break;
+ case CS_RESET_OCCURRED:
+ host_status = DID_RESET;
+ break;
+ case CS_ABORTED:
+ host_status = DID_ABORT;
+ break;
+ case CS_TIMEOUT:
+ host_status = DID_TIME_OUT;
+ break;
+ case CS_DATA_OVERRUN:
+ host_status = DID_ERROR;
+ break;
+ case CS_DATA_UNDERRUN:
+ if (Cmnd->underflow <= (Cmnd->request_bufflen - le32_to_cpu(sts->residual)))
+ host_status = DID_OK;
+ else
+ host_status = DID_ERROR;
+ break;
+ case CS_PORT_UNAVAILABLE:
+ case CS_PORT_LOGGED_OUT:
+ case CS_PORT_CONFIG_CHANGED:
+ host_status = DID_BAD_TARGET;
+ break;
+ case CS_QUEUE_FULL:
+ host_status = DID_ERROR;
+ break;
+ default:
+ printk("qlogicfc : unknown completion status 0x%04x\n",
+ le16_to_cpu(sts->completion_status));
+ host_status = DID_ERROR;
+ break;
+ }
+
+ DEBUG_INTR(printk("qlogicfc : host status (%s) scsi status %x\n",
+ reason[host_status], le16_to_cpu(sts->scsi_status)));
+
+ LEAVE("isp2x00_return_status");
+
+ return (le16_to_cpu(sts->scsi_status) & STATUS_MASK) | (host_status << 16);
+}
+
+
+static int isp2x00_abort(Scsi_Cmnd * Cmnd)
+{
+ u_short param[8];
+ int i;
+ struct Scsi_Host *host;
+ struct isp2x00_hostdata *hostdata;
+ int return_status = SUCCESS;
+
+ ENTER("isp2x00_abort");
+
+ host = Cmnd->device->host;
+ hostdata = (struct isp2x00_hostdata *) host->hostdata;
+
+ for (i = 0; i < QLOGICFC_REQ_QUEUE_LEN; i++)
+ if (hostdata->handle_ptrs[i] == Cmnd)
+ break;
+
+ if (i == QLOGICFC_REQ_QUEUE_LEN){
+ return SUCCESS;
+ }
+
+ isp2x00_disable_irqs(host);
+
+ param[0] = MBOX_ABORT_IOCB;
+#if ISP2x00_PORTDB
+ param[1] = (((u_short) hostdata->port_db[Cmnd->device->id].loop_id) << 8) | Cmnd->device->lun;
+#else
+ param[1] = (((u_short) Cmnd->target) << 8) | Cmnd->lun;
+#endif
+ param[2] = i & 0xffff;
+ param[3] = i >> 16;
+
+ isp2x00_mbox_command(host, param);
+
+ if (param[0] != MBOX_COMMAND_COMPLETE) {
+ printk("qlogicfc%d : scsi abort failure: %x\n", hostdata->host_id, param[0]);
+ if (param[0] == 0x4005)
+ Cmnd->result = DID_ERROR << 16;
+ if (param[0] == 0x4006)
+ Cmnd->result = DID_BAD_TARGET << 16;
+ return_status = FAILED;
+ }
+
+ if (return_status != SUCCESS){
+ param[0] = MBOX_GET_FIRMWARE_STATE;
+ isp2x00_mbox_command(host, param);
+ printk("qlogicfc%d : abort failed\n", hostdata->host_id);
+ printk("qlogicfc%d : firmware status is %x %x\n", hostdata->host_id, param[0], param[1]);
+ }
+
+ isp2x00_enable_irqs(host);
+
+ LEAVE("isp2x00_abort");
+
+ return return_status;
+}
+
+
+static int isp2x00_biosparam(struct scsi_device *sdev, struct block_device *n,
+ sector_t capacity, int ip[])
+{
+ int size = capacity;
+
+ ENTER("isp2x00_biosparam");
+
+ ip[0] = 64;
+ ip[1] = 32;
+ ip[2] = size >> 11;
+ if (ip[2] > 1024) {
+ ip[0] = 255;
+ ip[1] = 63;
+ ip[2] = size / (ip[0] * ip[1]);
+ }
+ LEAVE("isp2x00_biosparam");
+
+ return 0;
+}
+
+static int isp2x00_reset_hardware(struct Scsi_Host *host)
+{
+ u_short param[8];
+ struct isp2x00_hostdata *hostdata;
+ int loop_count;
+ dma_addr_t busaddr;
+
+ ENTER("isp2x00_reset_hardware");
+
+ hostdata = (struct isp2x00_hostdata *) host->hostdata;
+
+ /*
+ * This cannot be right - PCI writes are posted
+ * (apparently this is hardware design flaw not software ?)
+ */
+
+ outw(0x01, host->io_port + ISP_CTRL_STATUS);
+ udelay(100);
+ outw(HCCR_RESET, host->io_port + HOST_HCCR);
+ udelay(100);
+ outw(HCCR_RELEASE, host->io_port + HOST_HCCR);
+ outw(HCCR_BIOS_DISABLE, host->io_port + HOST_HCCR);
+
+ loop_count = DEFAULT_LOOP_COUNT;
+ while (--loop_count && inw(host->io_port + HOST_HCCR) == RISC_BUSY) {
+ barrier();
+ cpu_relax();
+ }
+ if (!loop_count)
+ printk("qlogicfc%d : reset_hardware loop timeout\n", hostdata->host_id);
+
+
+
+#if DEBUG_ISP2x00
+ printk("qlogicfc%d : mbox 0 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX0));
+ printk("qlogicfc%d : mbox 1 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX1));
+ printk("qlogicfc%d : mbox 2 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX2));
+ printk("qlogicfc%d : mbox 3 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX3));
+ printk("qlogicfc%d : mbox 4 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX4));
+ printk("qlogicfc%d : mbox 5 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX5));
+ printk("qlogicfc%d : mbox 6 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX6));
+ printk("qlogicfc%d : mbox 7 0x%04x \n", hostdata->host_id, inw(host->io_port + MBOX7));
+#endif /* DEBUG_ISP2x00 */
+
+ DEBUG(printk("qlogicfc%d : verifying checksum\n", hostdata->host_id));
+
+#if defined(CONFIG_SCSI_QLOGIC_FC_FIRMWARE)
+ {
+ int i;
+ unsigned short * risc_code = NULL;
+ unsigned short risc_code_len = 0;
+ if (hostdata->pci_dev->device == PCI_DEVICE_ID_QLOGIC_ISP2100){
+ risc_code = risc_code2100;
+ risc_code_len = risc_code_length2100;
+ }
+ else if (hostdata->pci_dev->device == PCI_DEVICE_ID_QLOGIC_ISP2200){
+ risc_code = risc_code2200;
+ risc_code_len = risc_code_length2200;
+ }
+
+ for (i = 0; i < risc_code_len; i++) {
+ param[0] = MBOX_WRITE_RAM_WORD;
+ param[1] = risc_code_addr01 + i;
+ param[2] = risc_code[i];
+
+ isp2x00_mbox_command(host, param);
+
+ if (param[0] != MBOX_COMMAND_COMPLETE) {
+ printk("qlogicfc%d : firmware load failure\n", hostdata->host_id);
+ return 1;
+ }
+ }
+ }
+#endif /* RELOAD_FIRMWARE */
+
+ param[0] = MBOX_VERIFY_CHECKSUM;
+ param[1] = risc_code_addr01;
+
+ isp2x00_mbox_command(host, param);
+
+ if (param[0] != MBOX_COMMAND_COMPLETE) {
+ printk("qlogicfc%d : ram checksum failure\n", hostdata->host_id);
+ return 1;
+ }
+ DEBUG(printk("qlogicfc%d : executing firmware\n", hostdata->host_id));
+
+ param[0] = MBOX_EXEC_FIRMWARE;
+ param[1] = risc_code_addr01;
+
+ isp2x00_mbox_command(host, param);
+
+ param[0] = MBOX_ABOUT_FIRMWARE;
+
+ isp2x00_mbox_command(host, param);
+
+ if (param[0] != MBOX_COMMAND_COMPLETE) {
+ printk("qlogicfc%d : about firmware failure\n", hostdata->host_id);
+ return 1;
+ }
+ DEBUG(printk("qlogicfc%d : firmware major revision %d\n", hostdata->host_id, param[1]));
+ DEBUG(printk("qlogicfc%d : firmware minor revision %d\n", hostdata->host_id, param[2]));
+
+#ifdef USE_NVRAM_DEFAULTS
+
+ if (isp2x00_get_nvram_defaults(host, &hostdata->control_block) != 0) {
+ printk("qlogicfc%d : Could not read from NVRAM\n", hostdata->host_id);
+ }
+#endif
+
+ hostdata->wwn = (u64) (cpu_to_le16(hostdata->control_block.node_name[0])) << 56;
+ hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[0]) & 0xff00) << 48;
+ hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[1]) & 0xff00) << 24;
+ hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[1]) & 0x00ff) << 48;
+ hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[2]) & 0x00ff) << 24;
+ hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[2]) & 0xff00) << 8;
+ hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[3]) & 0x00ff) << 8;
+ hostdata->wwn |= (u64) (cpu_to_le16(hostdata->control_block.node_name[3]) & 0xff00) >> 8;
+
+ /* FIXME: If the DMA transfer goes one way only, this should use
+ * PCI_DMA_TODEVICE and below as well.
+ */
+ busaddr = pci_map_page(hostdata->pci_dev,
+ virt_to_page(&hostdata->control_block),
+ offset_in_page(&hostdata->control_block),
+ sizeof(hostdata->control_block),
+ PCI_DMA_BIDIRECTIONAL);
+
+ param[0] = MBOX_INIT_FIRMWARE;
+ param[2] = (u_short) (pci64_dma_lo32(busaddr) >> 16);
+ param[3] = (u_short) (pci64_dma_lo32(busaddr) & 0xffff);
+ param[4] = 0;
+ param[5] = 0;
+ param[6] = (u_short) (pci64_dma_hi32(busaddr) >> 16);
+ param[7] = (u_short) (pci64_dma_hi32(busaddr) & 0xffff);
+ isp2x00_mbox_command(host, param);
+ if (param[0] != MBOX_COMMAND_COMPLETE) {
+ printk("qlogicfc%d.c: Ouch 0x%04x\n", hostdata->host_id, param[0]);
+ pci_unmap_page(hostdata->pci_dev, busaddr,
+ sizeof(hostdata->control_block),
+ PCI_DMA_BIDIRECTIONAL);
+ return 1;
+ }
+ param[0] = MBOX_GET_FIRMWARE_STATE;
+ isp2x00_mbox_command(host, param);
+ if (param[0] != MBOX_COMMAND_COMPLETE) {
+ printk("qlogicfc%d.c: 0x%04x\n", hostdata->host_id, param[0]);
+ pci_unmap_page(hostdata->pci_dev, busaddr,
+ sizeof(hostdata->control_block),
+ PCI_DMA_BIDIRECTIONAL);
+ return 1;
+ }
+
+ pci_unmap_page(hostdata->pci_dev, busaddr,
+ sizeof(hostdata->control_block),
+ PCI_DMA_BIDIRECTIONAL);
+ LEAVE("isp2x00_reset_hardware");
+
+ return 0;
+}
+
+#ifdef USE_NVRAM_DEFAULTS
+
+static int isp2x00_get_nvram_defaults(struct Scsi_Host *host, struct init_cb *control_block)
+{
+
+ u_short value;
+ if (isp2x00_read_nvram_word(host, 0) != 0x5349)
+ return 1;
+
+ value = isp2x00_read_nvram_word(host, 8);
+ control_block->node_name[0] = cpu_to_le16(isp2x00_read_nvram_word(host, 9));
+ control_block->node_name[1] = cpu_to_le16(isp2x00_read_nvram_word(host, 10));
+ control_block->node_name[2] = cpu_to_le16(isp2x00_read_nvram_word(host, 11));
+ control_block->node_name[3] = cpu_to_le16(isp2x00_read_nvram_word(host, 12));
+ control_block->hard_addr = cpu_to_le16(isp2x00_read_nvram_word(host, 13));
+
+ return 0;
+
+}
+
+#endif
+
+static int isp2x00_init(struct Scsi_Host *sh)
+{
+ u_long io_base;
+ struct isp2x00_hostdata *hostdata;
+ u_char revision;
+ u_int irq;
+ u_short command;
+ struct pci_dev *pdev;
+
+
+ ENTER("isp2x00_init");
+
+ hostdata = (struct isp2x00_hostdata *) sh->hostdata;
+ pdev = hostdata->pci_dev;
+
+ if (pci_read_config_word(pdev, PCI_COMMAND, &command)
+ || pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision)) {
+ printk("qlogicfc%d : error reading PCI configuration\n", hostdata->host_id);
+ return 1;
+ }
+ io_base = pci_resource_start(pdev, 0);
+ irq = pdev->irq;
+
+
+ if (pdev->vendor != PCI_VENDOR_ID_QLOGIC) {
+ printk("qlogicfc%d : 0x%04x is not QLogic vendor ID\n", hostdata->host_id,
+ pdev->vendor);
+ return 1;
+ }
+ if (pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2100 && pdev->device != PCI_DEVICE_ID_QLOGIC_ISP2200) {
+ printk("qlogicfc%d : 0x%04x does not match ISP2100 or ISP2200 device id\n", hostdata->host_id,
+ pdev->device);
+ return 1;
+ }
+ if (!(command & PCI_COMMAND_IO) ||
+ !(pdev->resource[0].flags & IORESOURCE_IO)) {
+ printk("qlogicfc%d : i/o mapping is disabled\n", hostdata->host_id);
+ return 1;
+ }
+
+ pci_set_master(pdev);
+ if (revision != ISP2100_REV_ID1 && revision != ISP2100_REV_ID3 && revision != ISP2200_REV_ID5)
+ printk("qlogicfc%d : new isp2x00 revision ID (%d)\n", hostdata->host_id, revision);
+
+
+ hostdata->revision = revision;
+
+ sh->irq = irq;
+ sh->io_port = io_base;
+
+ LEAVE("isp2x00_init");
+
+ return 0;
+}
+
+#if USE_NVRAM_DEFAULTS
+
+#define NVRAM_DELAY() udelay(10) /* 10 microsecond delay */
+
+
+u_short isp2x00_read_nvram_word(struct Scsi_Host * host, u_short byte)
+{
+ int i;
+ u_short value, output, input;
+
+ outw(0x2, host->io_port + PCI_NVRAM);
+ NVRAM_DELAY();
+ outw(0x3, host->io_port + PCI_NVRAM);
+ NVRAM_DELAY();
+
+ byte &= 0xff;
+ byte |= 0x0600;
+ for (i = 10; i >= 0; i--) {
+ output = ((byte >> i) & 0x1) ? 0x4 : 0x0;
+ outw(output | 0x2, host->io_port + PCI_NVRAM);
+ NVRAM_DELAY();
+ outw(output | 0x3, host->io_port + PCI_NVRAM);
+ NVRAM_DELAY();
+ outw(output | 0x2, host->io_port + PCI_NVRAM);
+ NVRAM_DELAY();
+ }
+
+ for (i = 0xf, value = 0; i >= 0; i--) {
+ value <<= 1;
+ outw(0x3, host->io_port + PCI_NVRAM);
+ NVRAM_DELAY();
+ input = inw(host->io_port + PCI_NVRAM);
+ NVRAM_DELAY();
+ outw(0x2, host->io_port + PCI_NVRAM);
+ NVRAM_DELAY();
+ if (input & 0x8)
+ value |= 1;
+ }
+
+ outw(0x0, host->io_port + PCI_NVRAM);
+ NVRAM_DELAY();
+
+ return value;
+}
+
+
+#endif /* USE_NVRAM_DEFAULTS */
+
+
+
+/*
+ * currently, this is only called during initialization or abort/reset,
+ * at which times interrupts are disabled, so polling is OK, I guess...
+ */
+static int isp2x00_mbox_command(struct Scsi_Host *host, u_short param[])
+{
+ int loop_count;
+ struct isp2x00_hostdata *hostdata = (struct isp2x00_hostdata *) host->hostdata;
+
+ if (mbox_param[param[0]] == 0 || hostdata->adapter_state == AS_FIRMWARE_DEAD)
+ return 1;
+
+ loop_count = DEFAULT_LOOP_COUNT;
+ while (--loop_count && inw(host->io_port + HOST_HCCR) & 0x0080) {
+ barrier();
+ cpu_relax();
+ }
+ if (!loop_count) {
+ printk("qlogicfc%d : mbox_command loop timeout #1\n", hostdata->host_id);
+ param[0] = 0x4006;
+ hostdata->adapter_state = AS_FIRMWARE_DEAD;
+ return 1;
+ }
+ hostdata->mbox_done = 0;
+
+ if (mbox_param[param[0]] == 0)
+ printk("qlogicfc%d : invalid mbox command\n", hostdata->host_id);
+
+ if (mbox_param[param[0]] & 0x80)
+ outw(param[7], host->io_port + MBOX7);
+ if (mbox_param[param[0]] & 0x40)
+ outw(param[6], host->io_port + MBOX6);
+ if (mbox_param[param[0]] & 0x20)
+ outw(param[5], host->io_port + MBOX5);
+ if (mbox_param[param[0]] & 0x10)
+ outw(param[4], host->io_port + MBOX4);
+ if (mbox_param[param[0]] & 0x08)
+ outw(param[3], host->io_port + MBOX3);
+ if (mbox_param[param[0]] & 0x04)
+ outw(param[2], host->io_port + MBOX2);
+ if (mbox_param[param[0]] & 0x02)
+ outw(param[1], host->io_port + MBOX1);
+ if (mbox_param[param[0]] & 0x01)
+ outw(param[0], host->io_port + MBOX0);
+
+
+ outw(HCCR_SET_HOST_INTR, host->io_port + HOST_HCCR);
+
+ while (1) {
+ loop_count = DEFAULT_LOOP_COUNT;
+ while (--loop_count && !(inw(host->io_port + PCI_INTER_STS) & 0x08)) {
+ barrier();
+ cpu_relax();
+ }
+
+ if (!loop_count) {
+ hostdata->adapter_state = AS_FIRMWARE_DEAD;
+ printk("qlogicfc%d : mbox_command loop timeout #2\n", hostdata->host_id);
+ break;
+ }
+ isp2x00_intr_handler(host->irq, host, NULL);
+
+ if (hostdata->mbox_done == 1)
+ break;
+
+ }
+
+ loop_count = DEFAULT_LOOP_COUNT;
+ while (--loop_count && inw(host->io_port + MBOX0) == 0x04) {
+ barrier();
+ cpu_relax();
+ }
+ if (!loop_count)
+ printk("qlogicfc%d : mbox_command loop timeout #3\n", hostdata->host_id);
+
+ param[7] = inw(host->io_port + MBOX7);
+ param[6] = inw(host->io_port + MBOX6);
+ param[5] = inw(host->io_port + MBOX5);
+ param[4] = inw(host->io_port + MBOX4);
+ param[3] = inw(host->io_port + MBOX3);
+ param[2] = inw(host->io_port + MBOX2);
+ param[1] = inw(host->io_port + MBOX1);
+ param[0] = inw(host->io_port + MBOX0);
+
+
+ outw(0x0, host->io_port + PCI_SEMAPHORE);
+
+ if (inw(host->io_port + HOST_HCCR) & 0x0080) {
+ hostdata->adapter_state = AS_FIRMWARE_DEAD;
+ printk("qlogicfc%d : mbox op is still pending\n", hostdata->host_id);
+ }
+ return 0;
+}
+
+#if DEBUG_ISP2x00_INTR
+
+void isp2x00_print_status_entry(struct Status_Entry *status)
+{
+ printk("qlogicfc : entry count = 0x%02x, type = 0x%02x, flags = 0x%02x\n",
+ status->hdr.entry_cnt, status->hdr.entry_type, status->hdr.flags);
+ printk("qlogicfc : scsi status = 0x%04x, completion status = 0x%04x\n",
+ le16_to_cpu(status->scsi_status), le16_to_cpu(status->completion_status));
+ printk("qlogicfc : state flags = 0x%04x, status flags = 0x%04x\n",
+ le16_to_cpu(status->state_flags), le16_to_cpu(status->status_flags));
+ printk("qlogicfc : response info length = 0x%04x, request sense length = 0x%04x\n",
+ le16_to_cpu(status->res_info_len), le16_to_cpu(status->req_sense_len));
+ printk("qlogicfc : residual transfer length = 0x%08x, response = 0x%02x\n", le32_to_cpu(status->residual), status->res_info[3]);
+
+}
+
+#endif /* DEBUG_ISP2x00_INTR */
+
+
+#if DEBUG_ISP2x00
+
+void isp2x00_print_scsi_cmd(Scsi_Cmnd * cmd)
+{
+ int i;
+
+ printk("qlogicfc : target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
+ cmd->target, cmd->lun, cmd->cmd_len);
+ printk("qlogicfc : command = ");
+ for (i = 0; i < cmd->cmd_len; i++)
+ printk("0x%02x ", cmd->cmnd[i]);
+ printk("\n");
+}
+
+#endif /* DEBUG_ISP2x00 */
+
+MODULE_LICENSE("GPL");
+
+static Scsi_Host_Template driver_template = {
+ .detect = isp2x00_detect,
+ .release = isp2x00_release,
+ .info = isp2x00_info,
+ .queuecommand = isp2x00_queuecommand,
+ .eh_abort_handler = isp2x00_abort,
+ .bios_param = isp2x00_biosparam,
+ .can_queue = QLOGICFC_REQ_QUEUE_LEN,
+ .this_id = -1,
+ .sg_tablesize = QLOGICFC_MAX_SG(QLOGICFC_REQ_QUEUE_LEN),
+ .cmd_per_lun = QLOGICFC_CMD_PER_LUN,
+ .use_clustering = ENABLE_CLUSTERING,
+};
+#include "scsi_module.c"
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-12 06:50:18 +0000