diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/Config.in linux.gamma/drivers/scsi/Config.in --- linux.15p3/drivers/scsi/Config.in Mon Nov 12 11:59:25 2001 +++ linux.gamma/drivers/scsi/Config.in Mon Nov 19 11:42:23 2001 @@ -50,6 +50,7 @@ dep_tristate 'Adaptec AHA152X/2825 support' CONFIG_SCSI_AHA152X $CONFIG_SCSI dep_tristate 'Adaptec AHA1542 support' CONFIG_SCSI_AHA1542 $CONFIG_SCSI dep_tristate 'Adaptec AHA1740 support' CONFIG_SCSI_AHA1740 $CONFIG_SCSI +dep_tristate 'Adaptec AACRAID support' CONFIG_SCSI_AACRAID $CONFIG_SCSI source drivers/scsi/aic7xxx/Config.in if [ "$CONFIG_SCSI_AIC7XXX" != "y" ]; then dep_tristate 'Old Adaptec AIC7xxx support' CONFIG_SCSI_AIC7XXX_OLD $CONFIG_SCSI diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/Makefile linux.gamma/drivers/scsi/Makefile --- linux.15p3/drivers/scsi/Makefile Mon Nov 12 11:59:25 2001 +++ linux.gamma/drivers/scsi/Makefile Wed Nov 28 19:09:49 2001 @@ -24,11 +24,10 @@ export-objs := scsi_syms.o 53c700.o mod-subdirs := pcmcia ../acorn/scsi - +subdir-$(CONFIG_SCSI_AACRAID) += aacraid subdir-$(CONFIG_SCSI_AIC7XXX) += aic7xxx subdir-$(CONFIG_PCMCIA) += pcmcia - obj-$(CONFIG_SCSI) += scsi_mod.o obj-$(CONFIG_A4000T_SCSI) += amiga7xx.o 53c7xx.o @@ -64,6 +63,9 @@ obj-$(CONFIG_SCSI_AHA152X) += aha152x.o obj-$(CONFIG_SCSI_AHA1542) += aha1542.o obj-$(CONFIG_SCSI_AHA1740) += aha1740.o +ifeq ($(CONFIG_SCSI_AACRAID),y) + obj-$(CONFIG_SCSI_AACRAID) += aacraid/aacraid.o +endif ifeq ($(CONFIG_SCSI_AIC7XXX),y) obj-$(CONFIG_SCSI_AIC7XXX) += aic7xxx/aic7xxx_drv.o endif @@ -203,3 +205,6 @@ mv script.h 53c700_d.h 53c700.o: 53c700_d.h + +aacraid.o: + cd aacraid; make diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/aacraid/Makefile linux.gamma/drivers/scsi/aacraid/Makefile --- linux.15p3/drivers/scsi/aacraid/Makefile Thu Jan 1 01:00:00 1970 +++ linux.gamma/drivers/scsi/aacraid/Makefile Thu Nov 29 20:14:24 2001 @@ -0,0 +1,15 @@ +list-multi := aacraid.o + +aacraid-objs := linit.o aachba.o commctrl.o comminit.o commsup.o dpcsup.o rx.o sap1sup.o + +EXTRA_CFLAGS += -I./include -I.. + +aacraid.o: $(aacraid-objs) + $(LD) -r -o $@ $(aacraid-objs) + +obj-$(CONFIG_SCSI_AACRAID) += aacraid.o + +include $(TOPDIR)/Rules.make + +clean: + rm -f *.o diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/aacraid/README linux.gamma/drivers/scsi/aacraid/README --- linux.15p3/drivers/scsi/aacraid/README Thu Jan 1 01:00:00 1970 +++ linux.gamma/drivers/scsi/aacraid/README Fri Nov 30 11:00:05 2001 @@ -0,0 +1,40 @@ +AACRAID Driver for Linux (take two) + +Introduction +------------------------- +The aacraid driver adds support for Adaptec (http://www.adaptec.com) +OEM based RAID controllers. This is a major rewrite from the original +Adaptec supplied driver. It has signficantly cleaned up both the code +and the running binary size (the module is less than half the size of +the original). + +This isn't a finished project, but the structural work is now done. +This driver is experimental. + +Supported Cards/Chipsets +------------------------- + Dell Computer Corporation PERC 2 Quad Channel + Dell Computer Corporation PERC 2/Si + Dell Computer Corporation PERC 3/Si + Dell Computer Corporation PERC 3/Di + HP NetRAID-4M + +Probably Supported Devices +------------------------- + Any and All Adaptec branded AAC964/5400 series raid controllers. + +People +------------------------- +Alan Cox + +Original Driver +------------------------- +Adaptec Unix OEM Product Group + +Mailing List +------------------------- +None currently. Also note this is very different to Brian's original driver +so don't expect him to support it. + +Original by Brian Boerner February 2001 +Rewritten by Alan Cox, November 2001 diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/aacraid/TODO linux.gamma/drivers/scsi/aacraid/TODO --- linux.15p3/drivers/scsi/aacraid/TODO Thu Jan 1 01:00:00 1970 +++ linux.gamma/drivers/scsi/aacraid/TODO Fri Nov 30 14:08:25 2001 @@ -0,0 +1,3 @@ +o Finish auditing for 32/64 bit cleanness +o Use the PCI dma mapping API for the scsi sg entries handed to us +o Make the driver work big endian diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/aacraid/aachba.c linux.gamma/drivers/scsi/aacraid/aachba.c --- linux.15p3/drivers/scsi/aacraid/aachba.c Thu Jan 1 01:00:00 1970 +++ linux.gamma/drivers/scsi/aacraid/aachba.c Fri Nov 30 13:57:06 2001 @@ -0,0 +1,1117 @@ +/* + * Adaptec AAC series RAID controller driver + * (c) Copyright 2001 Red Hat Inc. + * + * based on the old aacraid driver that is.. + * Adaptec aacraid device driver for Linux. + * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#define MAJOR_NR SCSI_DISK0_MAJOR /* For DEVICE_NR() */ +#include +#include "scsi.h" +#include "hosts.h" +#include "sd.h" + +#include "aacraid.h" + +/* SCSI Commands */ +#define SS_TEST 0x00 /* Test unit ready */ +#define SS_REZERO 0x01 /* Rezero unit */ +#define SS_REQSEN 0x03 /* Request Sense */ +#define SS_REASGN 0x07 /* Reassign blocks */ +#define SS_READ 0x08 /* Read 6 */ +#define SS_WRITE 0x0A /* Write 6 */ +#define SS_INQUIR 0x12 /* inquiry */ +#define SS_ST_SP 0x1B /* Start/Stop unit */ +#define SS_LOCK 0x1E /* prevent/allow medium removal */ +#define SS_RESERV 0x16 /* Reserve */ +#define SS_RELES 0x17 /* Release */ +#define SS_MODESEN 0x1A /* Mode Sense 6 */ +#define SS_RDCAP 0x25 /* Read Capacity */ +#define SM_READ 0x28 /* Read 10 */ +#define SM_WRITE 0x2A /* Write 10 */ +#define SS_SEEK 0x2B /* Seek */ + +/* values for inqd_pdt: Peripheral device type in plain English */ +#define INQD_PDT_DA 0x00 /* Direct-access (DISK) device */ +#define INQD_PDT_PROC 0x03 /* Processor device */ +#define INQD_PDT_CHNGR 0x08 /* Changer (jukebox, scsi2) */ +#define INQD_PDT_COMM 0x09 /* Communication device (scsi2) */ +#define INQD_PDT_NOLUN2 0x1f /* Unknown Device (scsi2) */ +#define INQD_PDT_NOLUN 0x7f /* Logical Unit Not Present */ + +#define INQD_PDT_DMASK 0x1F /* Peripheral Device Type Mask */ +#define INQD_PDT_QMASK 0xE0 /* Peripheral Device Qualifer Mask */ + +#define TARGET_LUN_TO_CONTAINER(target, lun) (((lun) << 4) | target) +#define CONTAINER_TO_TARGET(cont) ((cont) & 0xf) +#define CONTAINER_TO_LUN(cont) ((cont) >> 4) + +#define MAX_FIB_DATA (sizeof(struct hw_fib) - sizeof(FIB_HEADER)) + +#define MAX_DRIVER_SG_SEGMENT_COUNT 17 + +/* + * Sense keys + */ +#define SENKEY_NO_SENSE 0x00 +#define SENKEY_UNDEFINED 0x01 +#define SENKEY_NOT_READY 0x02 +#define SENKEY_MEDIUM_ERR 0x03 +#define SENKEY_HW_ERR 0x04 +#define SENKEY_ILLEGAL 0x05 +#define SENKEY_ATTENTION 0x06 +#define SENKEY_PROTECTED 0x07 +#define SENKEY_BLANK 0x08 +#define SENKEY_V_UNIQUE 0x09 +#define SENKEY_CPY_ABORT 0x0A +#define SENKEY_ABORT 0x0B +#define SENKEY_EQUAL 0x0C +#define SENKEY_VOL_OVERFLOW 0x0D +#define SENKEY_MISCOMP 0x0E +#define SENKEY_RESERVED 0x0F + +/* + * Sense codes + */ + +#define SENCODE_NO_SENSE 0x00 +#define SENCODE_END_OF_DATA 0x00 +#define SENCODE_BECOMING_READY 0x04 +#define SENCODE_INIT_CMD_REQUIRED 0x04 +#define SENCODE_PARAM_LIST_LENGTH_ERROR 0x1A +#define SENCODE_INVALID_COMMAND 0x20 +#define SENCODE_LBA_OUT_OF_RANGE 0x21 +#define SENCODE_INVALID_CDB_FIELD 0x24 +#define SENCODE_LUN_NOT_SUPPORTED 0x25 +#define SENCODE_INVALID_PARAM_FIELD 0x26 +#define SENCODE_PARAM_NOT_SUPPORTED 0x26 +#define SENCODE_PARAM_VALUE_INVALID 0x26 +#define SENCODE_RESET_OCCURRED 0x29 +#define SENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x3E +#define SENCODE_INQUIRY_DATA_CHANGED 0x3F +#define SENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x39 +#define SENCODE_DIAGNOSTIC_FAILURE 0x40 +#define SENCODE_INTERNAL_TARGET_FAILURE 0x44 +#define SENCODE_INVALID_MESSAGE_ERROR 0x49 +#define SENCODE_LUN_FAILED_SELF_CONFIG 0x4c +#define SENCODE_OVERLAPPED_COMMAND 0x4E + +/* + * Additional sense codes + */ + +#define ASENCODE_NO_SENSE 0x00 +#define ASENCODE_END_OF_DATA 0x05 +#define ASENCODE_BECOMING_READY 0x01 +#define ASENCODE_INIT_CMD_REQUIRED 0x02 +#define ASENCODE_PARAM_LIST_LENGTH_ERROR 0x00 +#define ASENCODE_INVALID_COMMAND 0x00 +#define ASENCODE_LBA_OUT_OF_RANGE 0x00 +#define ASENCODE_INVALID_CDB_FIELD 0x00 +#define ASENCODE_LUN_NOT_SUPPORTED 0x00 +#define ASENCODE_INVALID_PARAM_FIELD 0x00 +#define ASENCODE_PARAM_NOT_SUPPORTED 0x01 +#define ASENCODE_PARAM_VALUE_INVALID 0x02 +#define ASENCODE_RESET_OCCURRED 0x00 +#define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x00 +#define ASENCODE_INQUIRY_DATA_CHANGED 0x03 +#define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x00 +#define ASENCODE_DIAGNOSTIC_FAILURE 0x80 +#define ASENCODE_INTERNAL_TARGET_FAILURE 0x00 +#define ASENCODE_INVALID_MESSAGE_ERROR 0x00 +#define ASENCODE_LUN_FAILED_SELF_CONFIG 0x00 +#define ASENCODE_OVERLAPPED_COMMAND 0x00 + +#define BYTE0(x) (unsigned char)(x) +#define BYTE1(x) (unsigned char)((x) >> 8) +#define BYTE2(x) (unsigned char)((x) >> 16) +#define BYTE3(x) (unsigned char)((x) >> 24) + +/*------------------------------------------------------------------------------ + * S T R U C T S / T Y P E D E F S + *----------------------------------------------------------------------------*/ +/* SCSI inquiry data */ +struct inquiry_data { + u8 inqd_pdt; /* Peripheral qualifier | Peripheral Device Type */ + u8 inqd_dtq; /* RMB | Device Type Qualifier */ + u8 inqd_ver; /* ISO version | ECMA version | ANSI-approved version */ + u8 inqd_rdf; /* AENC | TrmIOP | Response data format */ + u8 inqd_len; /* Additional length (n-4) */ + u8 inqd_pad1[2];/* Reserved - must be zero */ + u8 inqd_pad2; /* RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */ + u8 inqd_vid[8]; /* Vendor ID */ + u8 inqd_pid[16];/* Product ID */ + u8 inqd_prl[4]; /* Product Revision Level */ +}; + +struct sense_data { + u8 error_code; /* 70h (current errors), 71h(deferred errors) */ + u8 valid:1; /* A valid bit of one indicates that the information */ + /* field contains valid information as defined in the + * SCSI-2 Standard. + */ + u8 segment_number; /* Only used for COPY, COMPARE, or COPY AND VERIFY Commands */ + u8 sense_key:4; /* Sense Key */ + u8 reserved:1; + u8 ILI:1; /* Incorrect Length Indicator */ + u8 EOM:1; /* End Of Medium - reserved for random access devices */ + u8 filemark:1; /* Filemark - reserved for random access devices */ + + u8 information[4]; /* for direct-access devices, contains the unsigned + * logical block address or residue associated with + * the sense key + */ + u8 add_sense_len; /* number of additional sense bytes to follow this field */ + u8 cmnd_info[4]; /* not used */ + u8 ASC; /* Additional Sense Code */ + u8 ASCQ; /* Additional Sense Code Qualifier */ + u8 FRUC; /* Field Replaceable Unit Code - not used */ + u8 bit_ptr:3; /* indicates which byte of the CDB or parameter data + * was in error + */ + u8 BPV:1; /* bit pointer valid (BPV): 1- indicates that + * the bit_ptr field has valid value + */ + u8 reserved2:2; + u8 CD:1; /* command data bit: 1- illegal parameter in CDB. + * 0- illegal parameter in data. + */ + u8 SKSV:1; + u8 field_ptr[2]; /* byte of the CDB or parameter data in error */ +}; + +/* + * M O D U L E G L O B A L S + */ + +static struct fsa_scsi_hba *fsa_dev[MAXIMUM_NUM_ADAPTERS]; /* SCSI Device Instance Pointers */ +static struct sense_data sense_data[MAXIMUM_NUM_CONTAINERS]; +static void get_sd_devname(int disknum, char *buffer); + +/** + * aac_get_containers - list containers + * @common: adapter to probe + * + * Make a list of all containers on this controller + */ +int aac_get_containers(struct aac_dev *dev) +{ + struct fsa_scsi_hba *fsa_dev_ptr; + int index, status; + struct aac_query_mount *dinfo; + struct aac_mount *dresp; + struct fib * fibptr; + unsigned instance; + + fsa_dev_ptr = &(dev->fsa_dev); + instance = dev->scsi_host_ptr->unique_id; + + if (!(fibptr = fib_alloc(dev))) + return -ENOMEM; + + for (index = 0; index < MAXIMUM_NUM_CONTAINERS; index++) { + fib_init(fibptr); + dinfo = (struct aac_query_mount *) fib_data(fibptr); + + dinfo->command = VM_NameServe; + dinfo->count = index; + dinfo->type = FT_FILESYS; + + status = fib_send(ContainerCommand, + fibptr, + sizeof (struct aac_query_mount), + FsaNormal, + 1, 1, + NULL, NULL); + if (status < 0 ) { + printk(KERN_WARNING "ProbeContainers: SendFIB failed.\n"); + break; + } + dresp = (struct aac_mount *)fib_data(fibptr); + + if ((dresp->status == ST_OK) && + (dresp->mnt[0].vol != CT_NONE)) { + fsa_dev_ptr->valid[index] = 1; + fsa_dev_ptr->type[index] = dresp->mnt[0].vol; + fsa_dev_ptr->size[index] = dresp->mnt[0].capacity; + if (dresp->mnt[0].state & FSCS_READONLY) + fsa_dev_ptr->ro[index] = 1; + } + fib_complete(fibptr); + /* + * If there are no more containers, then stop asking. + */ + if ((index + 1) >= dresp->count) + break; + } + fib_free(fibptr); + fsa_dev[instance] = fsa_dev_ptr; + return status; +} + +/** + * probe_container - query a logical volume + * @dev: device to query + * @cid: container identifier + * + * Queries the controller about the given volume. The volume information + * is updated in the struct fsa_scsi_hba structure rather than returned. + */ + +static int probe_container(struct aac_dev *dev, int cid) +{ + struct fsa_scsi_hba *fsa_dev_ptr; + int status; + struct aac_query_mount *dinfo; + struct aac_mount *dresp; + struct fib * fibptr; + unsigned instance; + + fsa_dev_ptr = &(dev->fsa_dev); + instance = dev->scsi_host_ptr->unique_id; + + if (!(fibptr = fib_alloc(dev))) + return -ENOMEM; + + fib_init(fibptr); + + dinfo = (struct aac_query_mount *)fib_data(fibptr); + + dinfo->command = VM_NameServe; + dinfo->count = cid; + dinfo->type = FT_FILESYS; + + status = fib_send(ContainerCommand, + fibptr, + sizeof(struct aac_query_mount), + FsaNormal, + 1, 1, + NULL, NULL); + if (status < 0) { + printk(KERN_WARNING "aacraid: probe_containers query failed.\n"); + goto error; + } + + dresp = (struct aac_mount *) fib_data(fibptr); + + if ((dresp->status == ST_OK) && + (dresp->mnt[0].vol != CT_NONE)) { + fsa_dev_ptr->valid[cid] = 1; + fsa_dev_ptr->type[cid] = dresp->mnt[0].vol; + fsa_dev_ptr->size[cid] = dresp->mnt[0].capacity; + if (dresp->mnt[0].state & FSCS_READONLY) + fsa_dev_ptr->ro[cid] = 1; + } + +error: + fib_complete(fibptr); + fib_free(fibptr); + + return status; +} + +/* Local Structure to set SCSI inquiry data strings */ +struct scsi_inq { + char vid[8]; /* Vendor ID */ + char pid[16]; /* Product ID */ + char prl[4]; /* Product Revision Level */ +}; + +/** + * InqStrCopy - string merge + * @a: string to copy from + * @b: string to copy to + * + * Copy a String from one location to another + * without copying \0 + */ + +static void inqstrcpy(char *a, char *b) +{ + + while(*a != (char)0) + *b++ = *a++; +} + +static char *container_types[] = { + "None", + "Volume", + "Mirror", + "Stripe", + "RAID5", + "SSRW", + "SSRO", + "Morph", + "Legacy", + "RAID4", + "RAID10", + "RAID00", + "V-MIRRORS", + "PSEUDO R4", + "RAID50", + "Unknown" +}; + + + +/* Function: setinqstr + * + * Arguments: [1] pointer to void [1] int + * + * Purpose: Sets SCSI inquiry data strings for vendor, product + * and revision level. Allows strings to be set in platform dependant + * files instead of in OS dependant driver source. + */ + +static void setinqstr(int devtype, void *data, int tindex) +{ + struct scsi_inq *str; + char *findit; + struct aac_driver_ident *mp; + extern struct aac_driver_ident aac_drivers[]; /* HACK FIXME */ + + mp = &aac_drivers[devtype]; + + str = (struct scsi_inq *)(data); /* cast data to scsi inq block */ + + inqstrcpy (mp->vname, str->vid); + inqstrcpy (mp->model, str->pid); /* last six chars reserved for vol type */ + + findit = str->pid; + + for ( ; *findit != ' '; findit++); /* walk till we find a space then incr by 1 */ + findit++; + + if (tindex < (sizeof(container_types)/sizeof(char *))){ + inqstrcpy (container_types[tindex], findit); + } + inqstrcpy ("0001", str->prl); +} + +void set_sense(char *sense_buf, u8 sense_key, u8 sense_code, + u8 a_sense_code, u8 incorrect_length, + u8 bit_pointer, unsigned field_pointer, + unsigned long residue) +{ + sense_buf[0] = 0xF0; /* Sense data valid, err code 70h (current error) */ + sense_buf[1] = 0; /* Segment number, always zero */ + + if (incorrect_length) { + sense_buf[2] = sense_key | 0x20; /* Set the ILI bit | sense key */ + sense_buf[3] = BYTE3(residue); + sense_buf[4] = BYTE2(residue); + sense_buf[5] = BYTE1(residue); + sense_buf[6] = BYTE0(residue); + } else + sense_buf[2] = sense_key; /* Sense key */ + + if (sense_key == SENKEY_ILLEGAL) + sense_buf[7] = 10; /* Additional sense length */ + else + sense_buf[7] = 6; /* Additional sense length */ + + sense_buf[12] = sense_code; /* Additional sense code */ + sense_buf[13] = a_sense_code; /* Additional sense code qualifier */ + if (sense_key == SENKEY_ILLEGAL) { + sense_buf[15] = 0; + + if (sense_code == SENCODE_INVALID_PARAM_FIELD) + sense_buf[15] = 0x80; /* Std sense key specific field */ + /* Illegal parameter is in the parameter block */ + + if (sense_code == SENCODE_INVALID_CDB_FIELD) + sense_buf[15] = 0xc0; /* Std sense key specific field */ + /* Illegal parameter is in the CDB block */ + sense_buf[15] |= bit_pointer; + sense_buf[16] = field_pointer >> 8; /* MSB */ + sense_buf[17] = field_pointer; /* LSB */ + } +} + +static void aac_io_done(Scsi_Cmnd * scsi_cmnd_ptr) +{ + unsigned long cpu_flags; + spin_lock_irqsave(&io_request_lock, cpu_flags); + scsi_cmnd_ptr->scsi_done(scsi_cmnd_ptr); + spin_unlock_irqrestore(&io_request_lock, cpu_flags); +} + +static void __aac_io_done(Scsi_Cmnd * scsi_cmnd_ptr) +{ + scsi_cmnd_ptr->scsi_done(scsi_cmnd_ptr); +} + +static void read_callback(void *context, struct fib * fibptr) +{ + struct aac_dev *dev; + struct aac_read_reply *readreply; + Scsi_Cmnd *scsi_cmnd_ptr; + unsigned long lba; + int cid; + + scsi_cmnd_ptr = (Scsi_Cmnd *) context; + + dev = (struct aac_dev *)scsi_cmnd_ptr->host->hostdata; + cid =TARGET_LUN_TO_CONTAINER(scsi_cmnd_ptr->target, scsi_cmnd_ptr->lun); + + lba = ((scsi_cmnd_ptr->cmnd[1] & 0x1F) << 16) | (scsi_cmnd_ptr->cmnd[2] << 8) | scsi_cmnd_ptr->cmnd[3]; + dprintk((KERN_DEBUG "read_callback[cpu %d]: lba = %ld, t = %ld.\n", smp_processor_id(), lba, jiffies)); + + if (fibptr == NULL) + BUG(); + readreply = (struct aac_read_reply *) fib_data(fibptr); + if (readreply->status == ST_OK) + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | GOOD; + else { + printk(KERN_WARNING "read_callback: read failed, status = %d\n", readreply->status); + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | CHECK_CONDITION; + set_sense((char *) &sense_data[cid], + SENKEY_HW_ERR, + SENCODE_INTERNAL_TARGET_FAILURE, + ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0, + 0, 0); + } + fib_complete(fibptr); + fib_free(fibptr); + + aac_io_done(scsi_cmnd_ptr); +} + +static void write_callback(void *context, struct fib * fibptr) +{ + struct aac_dev *dev; + struct aac_write_reply *writereply; + Scsi_Cmnd *scsi_cmnd_ptr; + unsigned long lba; + int cid; + + scsi_cmnd_ptr = (Scsi_Cmnd *) context; + dev = (struct aac_dev *)scsi_cmnd_ptr->host->hostdata; + cid = TARGET_LUN_TO_CONTAINER(scsi_cmnd_ptr->target, scsi_cmnd_ptr->lun); + + lba = ((scsi_cmnd_ptr->cmnd[1] & 0x1F) << 16) | (scsi_cmnd_ptr->cmnd[2] << 8) | scsi_cmnd_ptr->cmnd[3]; + dprintk((KERN_DEBUG "write_callback[cpu %d]: lba = %ld, t = %ld.\n", smp_processor_id(), lba, jiffies)); + if (fibptr == NULL) + BUG(); + + writereply = (struct aac_write_reply *) fib_data(fibptr); + if (writereply->status == ST_OK) + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | GOOD; + else { + printk(KERN_WARNING "write_callback: write failed, status = %d\n", writereply->status); + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | CHECK_CONDITION; + set_sense((char *) &sense_data[cid], + SENKEY_HW_ERR, + SENCODE_INTERNAL_TARGET_FAILURE, + ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0, + 0, 0); + } + + fib_complete(fibptr); + fib_free(fibptr); + aac_io_done(scsi_cmnd_ptr); +} + +int aac_read(Scsi_Cmnd * scsi_cmnd_ptr, int cid) +{ + unsigned long lba; + unsigned long count; + unsigned long byte_count; + int status; + + struct aac_read *readcmd; + u16 fibsize; + struct aac_dev *dev; + struct fib * cmd_fibcontext; + + dev = (struct aac_dev *)scsi_cmnd_ptr->host->hostdata; + /* + * Get block address and transfer length + */ + if (scsi_cmnd_ptr->cmnd[0] == SS_READ) /* 6 byte command */ + { + dprintk((KERN_DEBUG "aachba: received a read(6) command on target %d.\n", cid)); + + lba = ((scsi_cmnd_ptr->cmnd[1] & 0x1F) << 16) | (scsi_cmnd_ptr->cmnd[2] << 8) | scsi_cmnd_ptr->cmnd[3]; + count = scsi_cmnd_ptr->cmnd[4]; + + if (count == 0) + count = 256; + } else { + dprintk((KERN_DEBUG "aachba: received a read(10) command on target %d.\n", cid)); + + lba = (scsi_cmnd_ptr->cmnd[2] << 24) | (scsi_cmnd_ptr->cmnd[3] << 16) | (scsi_cmnd_ptr->cmnd[4] << 8) | scsi_cmnd_ptr->cmnd[5]; + count = (scsi_cmnd_ptr->cmnd[7] << 8) | scsi_cmnd_ptr->cmnd[8]; + } + dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %lu, t = %ld.\n", smp_processor_id(), lba, jiffies)); + /* + * Alocate and initialize a Fib + */ + if (!(cmd_fibcontext = fib_alloc(dev))) { + scsi_cmnd_ptr->result = DID_ERROR << 16; + aac_io_done(scsi_cmnd_ptr); + return (-1); + } + + fib_init(cmd_fibcontext); + + readcmd = (struct aac_read *) fib_data(cmd_fibcontext); + readcmd->command = VM_CtBlockRead; + readcmd->cid = cid; + readcmd->block = lba; + readcmd->count = count * 512; + readcmd->sg.count = 1; + + if (readcmd->count > (64 * 1024)) + BUG(); + /* + * Build Scatter/Gather list + */ + if (scsi_cmnd_ptr->use_sg) /* use scatter/gather list */ + { + struct scatterlist *scatterlist_ptr; + int segment; + + scatterlist_ptr = (struct scatterlist *) scsi_cmnd_ptr->request_buffer; + byte_count = 0; + for (segment = 0; segment < scsi_cmnd_ptr->use_sg; segment++) { + readcmd->sg.sg[segment].addr = (u32)virt_to_bus(scatterlist_ptr[segment].address); + readcmd->sg.sg[segment].count = scatterlist_ptr[segment].length; + byte_count += scatterlist_ptr[segment].length; + + if (readcmd->sg.sg[segment].count > (64 * 1024)) + BUG(); + } + readcmd->sg.count = scsi_cmnd_ptr->use_sg; + + if (readcmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT) { + BUG(); + } + } + else /* One piece of contiguous phys mem */ + { + readcmd->sg.sg[0].addr = (u32) virt_to_bus(scsi_cmnd_ptr->request_buffer); + readcmd->sg.sg[0].count = scsi_cmnd_ptr->request_bufflen; + + byte_count = scsi_cmnd_ptr->request_bufflen; + + if (readcmd->sg.sg[0].count > (64 * 1024)) + BUG(); + } + if (byte_count != readcmd->count) + BUG(); + /* + * Now send the Fib to the adapter + */ + fibsize = sizeof(struct aac_read) + ((readcmd->sg.count - 1) * sizeof (struct sgentry)); + status = fib_send(ContainerCommand, + cmd_fibcontext, + fibsize, + FsaNormal, + 0, 1, + (fib_callback) read_callback, + (void *) scsi_cmnd_ptr); + /* + * Check that the command queued to the controller + */ + if (status == -EINPROGRESS) + return 0; + + printk(KERN_WARNING "aac_read: fib_send failed with status: %d.\n", status); + /* + * For some reason, the Fib didn't queue, return QUEUE_FULL + */ + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | QUEUE_FULL; + aac_io_done(scsi_cmnd_ptr); + fib_complete(cmd_fibcontext); + fib_free(cmd_fibcontext); + return -1; +} + +static int aac_write(Scsi_Cmnd * scsi_cmnd_ptr, int cid) +{ + unsigned long lba; + unsigned long count; + unsigned long byte_count; + int status; + struct aac_write *writecmd; + u16 fibsize; + struct aac_dev *dev; + struct fib * cmd_fibcontext; + + dev = (struct aac_dev *)scsi_cmnd_ptr->host->hostdata; + /* + * Get block address and transfer length + */ + if (scsi_cmnd_ptr->cmnd[0] == SS_WRITE) /* 6 byte command */ + { + lba = ((scsi_cmnd_ptr->cmnd[1] & 0x1F) << 16) | (scsi_cmnd_ptr->cmnd[2] << 8) | scsi_cmnd_ptr->cmnd[3]; + count = scsi_cmnd_ptr->cmnd[4]; + if (count == 0) + count = 256; + } else { + dprintk((KERN_DEBUG "aachba: received a write(10) command on target %d.\n", cid)); + lba = (scsi_cmnd_ptr->cmnd[2] << 24) | (scsi_cmnd_ptr->cmnd[3] << 16) | (scsi_cmnd_ptr->cmnd[4] << 8) | scsi_cmnd_ptr->cmnd[5]; + count = (scsi_cmnd_ptr->cmnd[7] << 8) | scsi_cmnd_ptr->cmnd[8]; + } + dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %lu, t = %ld.\n", smp_processor_id(), lba, jiffies)); + /* + * Allocate and initialize a Fib then setup a BlockWrite command + */ + if (!(cmd_fibcontext = fib_alloc(dev))) { + scsi_cmnd_ptr->result = DID_ERROR << 16; + aac_io_done(scsi_cmnd_ptr); + return -1; + } + fib_init(cmd_fibcontext); + + writecmd = (struct aac_write *) fib_data(cmd_fibcontext); + writecmd->command = VM_CtBlockWrite; + writecmd->cid = cid; + writecmd->block = lba; + writecmd->count = count * 512; + writecmd->sg.count = 1; + /* FIXME: why isnt ->stable setup */ + + if (writecmd->count > (64 * 1024)) { + BUG(); + } + /* + * Build Scatter/Gather list + */ + if (scsi_cmnd_ptr->use_sg) + { + struct scatterlist *scatterlist_ptr; + int segment; + + scatterlist_ptr = (struct scatterlist *) scsi_cmnd_ptr->request_buffer; + byte_count = 0; + for (segment = 0; segment < scsi_cmnd_ptr->use_sg; segment++) { + writecmd->sg.sg[segment].addr = (u32) virt_to_bus(scatterlist_ptr[segment].address); + writecmd->sg.sg[segment].count = scatterlist_ptr[segment].length; + byte_count += scatterlist_ptr[segment].length; + + if (writecmd->sg.sg[segment].count > (64 * 1024)) { + printk(KERN_WARNING "aac_write: Segment byte count is larger than 64K.\n"); + BUG(); + } + } + writecmd->sg.count = scsi_cmnd_ptr->use_sg; + + if (writecmd->sg.count > MAX_DRIVER_SG_SEGMENT_COUNT) { + BUG(); + } + } + else + { + writecmd->sg.sg[0].addr = (u32) virt_to_bus(scsi_cmnd_ptr->request_buffer); + writecmd->sg.sg[0].count = scsi_cmnd_ptr->request_bufflen; + byte_count = scsi_cmnd_ptr->request_bufflen; + + if (writecmd->sg.sg[0].count > (64 * 1024)) { + BUG(); + } + } + if (byte_count != writecmd->count) + BUG(); + /* + * Now send the Fib to the adapter + */ + fibsize = sizeof (struct aac_write) + ((writecmd->sg.count - 1) * sizeof (struct sgentry)); + + status = fib_send(ContainerCommand, + cmd_fibcontext, + fibsize, FsaNormal, + 0, 1, + (fib_callback) write_callback, + (void *) scsi_cmnd_ptr); + /* + * Check that the command queued to the controller + */ + if (status == -EINPROGRESS) + return 0; + + printk(KERN_WARNING "aac_write: fib_send failed with status: %d\n", status); + /* + * For some reason, the Fib didn't queue, return QUEUE_FULL + */ + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | QUEUE_FULL; + aac_io_done(scsi_cmnd_ptr); + + fib_complete(cmd_fibcontext); + fib_free(cmd_fibcontext); + return -1; +} + + +/** + * aac_scsi_cmd() - Process SCSI command + * @scsi_cmnd_ptr: SCSI command block + * @wait: 1 if the user wants to await completion + * + * Emulate a SCSI command and queue the required request for the + * aacraid firmware. + */ + +int aac_scsi_cmd(Scsi_Cmnd * scsi_cmnd_ptr) +{ + int cid = 0; + struct fsa_scsi_hba *fsa_dev_ptr; + int cardtype; + int ret; + struct aac_dev *dev = (struct aac_dev *)scsi_cmnd_ptr->host->hostdata; + + cardtype = dev->cardtype; + + fsa_dev_ptr = fsa_dev[scsi_cmnd_ptr->host->unique_id]; + + /* + * If the bus, target or lun is out of range, return fail + * Test does not apply to ID 16, the pseudo id for the controller + * itself. + */ + if (scsi_cmnd_ptr->target != scsi_cmnd_ptr->host->this_id) { + if ((scsi_cmnd_ptr->channel > 0) ||(scsi_cmnd_ptr->target > 15) || (scsi_cmnd_ptr->lun > 7)) + { + dprintk((KERN_DEBUG "The bus, target or lun is out of range = %d, %d, %d.\n", + scsi_cmnd_ptr->channel, scsi_cmnd_ptr->target, scsi_cmnd_ptr->lun)); + scsi_cmnd_ptr->result = DID_BAD_TARGET << 16; + __aac_io_done(scsi_cmnd_ptr); + return -1; + } + cid = TARGET_LUN_TO_CONTAINER(scsi_cmnd_ptr->target, scsi_cmnd_ptr->lun); + /* + * If the target container doesn't exist, it may have + * been newly created + */ + if (fsa_dev_ptr->valid[cid] == 0) { + switch (scsi_cmnd_ptr->cmnd[0]) { + case SS_INQUIR: + case SS_RDCAP: + case SS_TEST: + spin_unlock_irq(&io_request_lock); + probe_container(dev, cid); + spin_lock_irq(&io_request_lock); + default: + break; + } + } + /* + * If the target container still doesn't exist, + * return failure + */ + if (fsa_dev_ptr->valid[cid] == 0) { + scsi_cmnd_ptr->result = DID_BAD_TARGET << 16; + __aac_io_done(scsi_cmnd_ptr); + return -1; + } + } + else if ((scsi_cmnd_ptr->cmnd[0] != SS_INQUIR) && /* only INQUIRY & TUR cmnd supported for controller */ + (scsi_cmnd_ptr->cmnd[0] != SS_TEST)) + { + /* + * Command aimed at the controller + */ + dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsi_cmnd_ptr->cmnd[0])); + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | CHECK_CONDITION; + set_sense((char *) &sense_data[cid], + SENKEY_ILLEGAL, + SENCODE_INVALID_COMMAND, + ASENCODE_INVALID_COMMAND, 0, 0, 0, 0); + __aac_io_done(scsi_cmnd_ptr); + return -1; + } + /* Handle commands here that don't really require going out to the adapter */ + switch (scsi_cmnd_ptr->cmnd[0]) + { + case SS_INQUIR: + { + struct inquiry_data *inq_data_ptr; + + dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scsi_cmnd_ptr->target)); + inq_data_ptr = (struct inquiry_data *)scsi_cmnd_ptr->request_buffer; + memset(inq_data_ptr, 0, sizeof (struct inquiry_data)); + + inq_data_ptr->inqd_ver = 2; /* claim compliance to SCSI-2 */ + inq_data_ptr->inqd_dtq = 0x80; /* set RMB bit to one indicating that the medium is removable */ + inq_data_ptr->inqd_rdf = 2; /* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */ + inq_data_ptr->inqd_len = 31; + + /* + * Set the Vendor, Product, and Revision Level + * see: .c i.e. aac.c + */ + setinqstr(cardtype, (void *) (inq_data_ptr->inqd_vid), fsa_dev_ptr->type[cid]); + if (scsi_cmnd_ptr->target == scsi_cmnd_ptr->host->this_id) + inq_data_ptr->inqd_pdt = INQD_PDT_PROC; /* Processor device */ + else + inq_data_ptr->inqd_pdt = INQD_PDT_DA; /* Direct/random access device */ + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | GOOD; + __aac_io_done(scsi_cmnd_ptr); + return 0; + } + case SS_RDCAP: + { + int capacity; + char *cp; + + dprintk((KERN_DEBUG "READ CAPACITY command.\n")); + capacity = fsa_dev_ptr->size[cid] - 1; + cp = scsi_cmnd_ptr->request_buffer; + cp[0] = (capacity >> 24) & 0xff; + cp[1] = (capacity >> 16) & 0xff; + cp[2] = (capacity >> 8) & 0xff; + cp[3] = (capacity >> 0) & 0xff; + cp[4] = 0; + cp[5] = 0; + cp[6] = 2; + cp[7] = 0; + + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | GOOD; + __aac_io_done(scsi_cmnd_ptr); + + return 0; + } + + case SS_MODESEN: + { + char *mode_buf; + + dprintk((KERN_DEBUG "MODE SENSE command.\n")); + mode_buf = scsi_cmnd_ptr->request_buffer; + mode_buf[0] = 0; /* Mode data length (MSB) */ + mode_buf[1] = 6; /* Mode data length (LSB) */ + mode_buf[2] = 0; /* Medium type - default */ + mode_buf[3] = 0; /* Device-specific param, bit 8: 0/1 = write enabled/protected */ + mode_buf[4] = 0; /* reserved */ + mode_buf[5] = 0; /* reserved */ + mode_buf[6] = 0; /* Block descriptor length (MSB) */ + mode_buf[7] = 0; /* Block descriptor length (LSB) */ + + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | GOOD; + __aac_io_done(scsi_cmnd_ptr); + + return 0; + } + case SS_REQSEN: + dprintk((KERN_DEBUG "REQUEST SENSE command.\n")); + memcpy(scsi_cmnd_ptr->sense_buffer, &sense_data[cid], sizeof (struct sense_data)); + memset(&sense_data[cid], 0, sizeof (struct sense_data)); + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | GOOD; + __aac_io_done(scsi_cmnd_ptr); + return (0); + + case SS_LOCK: + dprintk((KERN_DEBUG "LOCK command.\n")); + if (scsi_cmnd_ptr->cmnd[4]) + fsa_dev_ptr->locked[cid] = 1; + else + fsa_dev_ptr->locked[cid] = 0; + + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | GOOD; + __aac_io_done(scsi_cmnd_ptr); + return 0; + /* + * These commands are all No-Ops + */ + case SS_TEST: + case SS_RESERV: + case SS_RELES: + case SS_REZERO: + case SS_REASGN: + case SS_SEEK: + case SS_ST_SP: + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | GOOD; + __aac_io_done(scsi_cmnd_ptr); + return (0); + } + + switch (scsi_cmnd_ptr->cmnd[0]) + { + case SS_READ: + case SM_READ: + /* + * Hack to keep track of ordinal number of the device that + * corresponds to a container. Needed to convert + * containers to /dev/sd device names + */ + + spin_unlock_irq(&io_request_lock); + fsa_dev_ptr->devno[cid] = DEVICE_NR(scsi_cmnd_ptr->request.rq_dev); + ret = aac_read(scsi_cmnd_ptr, cid); + spin_lock_irq(&io_request_lock); + return ret; + + case SS_WRITE: + case SM_WRITE: + spin_unlock_irq(&io_request_lock); + ret = aac_write(scsi_cmnd_ptr, cid); + spin_lock_irq(&io_request_lock); + return ret; + default: + /* + * Unhandled commands + */ + printk(KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsi_cmnd_ptr->cmnd[0]); + scsi_cmnd_ptr->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | CHECK_CONDITION; + set_sense((char *) &sense_data[cid], + SENKEY_ILLEGAL, SENCODE_INVALID_COMMAND, + ASENCODE_INVALID_COMMAND, 0, 0, 0, 0); + __aac_io_done(scsi_cmnd_ptr); + return -1; + } +} + +static int query_disk(struct aac_dev *dev, void *arg) +{ + struct aac_query_disk qd; + struct fsa_scsi_hba *fsa_dev_ptr; + + fsa_dev_ptr = &(dev->fsa_dev); + if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk))) + return -EFAULT; + if (qd.cnum == -1) + qd.cnum = TARGET_LUN_TO_CONTAINER(qd.target, qd.lun); + else if ((qd.bus == -1) && (qd.target == -1) && (qd.lun == -1)) + { + if (qd.cnum < 0 || qd.cnum > MAXIMUM_NUM_CONTAINERS) + return -EINVAL; + qd.instance = dev->scsi_host_ptr->host_no; + qd.bus = 0; + qd.target = CONTAINER_TO_TARGET(qd.cnum); + qd.lun = CONTAINER_TO_LUN(qd.cnum); + } + else return -EINVAL; + + qd.valid = fsa_dev_ptr->valid[qd.cnum]; + qd.locked = fsa_dev_ptr->locked[qd.cnum]; + qd.deleted = fsa_dev_ptr->deleted[qd.cnum]; + + if (fsa_dev_ptr->devno[qd.cnum] == -1) + qd.unmapped = 1; + else + qd.unmapped = 0; + + get_sd_devname(fsa_dev_ptr->devno[qd.cnum], qd.name); + + if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk))) + return -EFAULT; + return 0; +} + +static void get_sd_devname(int disknum, char *buffer) +{ + if (disknum < 0) { + sprintf(buffer, "%s", ""); + return; + } + + if (disknum < 26) + sprintf(buffer, "sd%c", 'a' + disknum); + else { + unsigned int min1; + unsigned int min2; + /* + * For larger numbers of disks, we need to go to a new + * naming scheme. + */ + min1 = disknum / 26; + min2 = disknum % 26; + sprintf(buffer, "sd%c%c", 'a' + min1 - 1, 'a' + min2); + } +} + +static int force_delete_disk(struct aac_dev *dev, void *arg) +{ + struct aac_delete_disk dd; + struct fsa_scsi_hba *fsa_dev_ptr; + + fsa_dev_ptr = &(dev->fsa_dev); + + if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk))) + return -EFAULT; + + if (dd.cnum > MAXIMUM_NUM_CONTAINERS) + return -EINVAL; + /* + * Mark this container as being deleted. + */ + fsa_dev_ptr->deleted[dd.cnum] = 1; + /* + * Mark the container as no longer valid + */ + fsa_dev_ptr->valid[dd.cnum] = 0; + return 0; +} + +static int delete_disk(struct aac_dev *dev, void *arg) +{ + struct aac_delete_disk dd; + struct fsa_scsi_hba *fsa_dev_ptr; + + fsa_dev_ptr = &(dev->fsa_dev); + + if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk))) + return -EFAULT; + + if (dd.cnum > MAXIMUM_NUM_CONTAINERS) + return -EINVAL; + /* + * If the container is locked, it can not be deleted by the API. + */ + if (fsa_dev_ptr->locked[dd.cnum]) + return -EBUSY; + else { + /* + * Mark the container as no longer being valid. + */ + fsa_dev_ptr->valid[dd.cnum] = 0; + fsa_dev_ptr->devno[dd.cnum] = -1; + return 0; + } +} + +int aac_dev_ioctl(struct aac_dev *dev, int cmd, void *arg) +{ + switch (cmd) { + case FSACTL_QUERY_DISK: + return query_disk(dev, arg); + case FSACTL_DELETE_DISK: + return delete_disk(dev, arg); + case FSACTL_FORCE_DELETE_DISK: + return force_delete_disk(dev, arg); + case 2131: + return aac_get_containers(dev); + default: + return -ENOTTY; + } +} + diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/aacraid/commctrl.c linux.gamma/drivers/scsi/aacraid/commctrl.c --- linux.15p3/drivers/scsi/aacraid/commctrl.c Thu Jan 1 01:00:00 1970 +++ linux.gamma/drivers/scsi/aacraid/commctrl.c Fri Nov 30 13:57:16 2001 @@ -0,0 +1,386 @@ +/* + * Adaptec AAC series RAID controller driver + * (c) Copyright 2001 Red Hat Inc. + * + * based on the old aacraid driver that is.. + * Adaptec aacraid device driver for Linux. + * + * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Module Name: + * commctrl.c + * + * Abstract: Contains all routines for control of the AFA comm layer + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "scsi.h" +#include "hosts.h" + +#include "aacraid.h" + +/** + * ioctl_send_fib - send a FIB from userspace + * @dev: adapter is being processed + * @arg: arguments to the ioctl call + * + * This routine sends a fib to the adapter on behalf of a user level + * program. + */ + +static int ioctl_send_fib(struct aac_dev * dev, void *arg) +{ + struct hw_fib * kfib; + struct fib *fibptr; + + fibptr = fib_alloc(dev); + if(fibptr == NULL) + return -ENOMEM; + + kfib = fibptr->fib; + /* + * First copy in the header so that we can check the size field. + */ + if (copy_from_user((void *)kfib, arg, sizeof(struct aac_fibhdr))) { + fib_free(fibptr); + return -EFAULT; + } + /* + * Since we copy based on the fib header size, make sure that we + * will not overrun the buffer when we copy the memory. Return + * an error if we would. + */ + if(kfib->header.Size > sizeof(struct hw_fib) - sizeof(struct aac_fibhdr)) { + fib_free(fibptr); + return -EINVAL; + } + + if (copy_from_user((void *) kfib, arg, kfib->header.Size + sizeof(struct aac_fibhdr))) { + fib_free(fibptr); + return -EFAULT; + } + + if (kfib->header.Command == TakeABreakPt) { + aac_adapter_interrupt(dev); + /* + * Since we didn't really send a fib, zero out the state to allow + * cleanup code not to assert. + */ + kfib->header.XferState = 0; + } else { + if (fib_send(kfib->header.Command, fibptr, kfib->header.Size , FsaNormal, + 1, 1, NULL, NULL) != 0) + { + fib_free(fibptr); + return -EINVAL; + } + if (fib_complete(fibptr) != 0) { + fib_free(fibptr); + return -EINVAL; + } + } + /* + * Make sure that the size returned by the adapter (which includes + * the header) is less than or equal to the size of a fib, so we + * don't corrupt application data. Then copy that size to the user + * buffer. (Don't try to add the header information again, since it + * was already included by the adapter.) + */ + + if (copy_to_user(arg, (void *)kfib, kfib->header.Size)) { + fib_free(fibptr); + return -EFAULT; + } + fib_free(fibptr); + return 0; +} + +/** + * open_getadapter_fib - Get the next fib + * + * This routine will get the next Fib, if available, from the AdapterFibContext + * passed in from the user. + */ + +static int open_getadapter_fib(struct aac_dev * dev, void *arg) +{ + struct aac_fib_context * fibctx; + int status; + unsigned long flags; + + fibctx = kmalloc(sizeof(struct aac_fib_context), GFP_KERNEL); + if (fibctx == NULL) { + status = -ENOMEM; + } else { + fibctx->type = FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT; + fibctx->size = sizeof(struct aac_fib_context); + /* + * Initialize the mutex used to wait for the next AIF. + */ + init_MUTEX_LOCKED(&fibctx->wait_sem); + fibctx->wait = 0; + /* + * Initialize the fibs and set the count of fibs on + * the list to 0. + */ + fibctx->count = 0; + INIT_LIST_HEAD(&fibctx->fibs); + fibctx->jiffies = jiffies/HZ; + /* + * Now add this context onto the adapter's + * AdapterFibContext list. + */ + spin_lock_irqsave(&dev->fib_lock, flags); + list_add_tail(&fibctx->next, &dev->fib_list); + spin_unlock_irqrestore(&dev->fib_lock, flags); + if (copy_to_user(arg, &fibctx, sizeof(struct aac_fib_context *))) { + status = -EFAULT; + } else { + status = 0; + } + } + return status; +} + +/** + * next_getadapter_fib - get the next fib + * @dev: adapter to use + * @arg: ioctl argument + * + * This routine will get the next Fib, if available, from the AdapterFibContext + * passed in from the user. + */ + +static int next_getadapter_fib(struct aac_dev * dev, void *arg) +{ + struct fib_ioctl f; + struct aac_fib_context *fibctx, *aifcp; + struct hw_fib * fib; + int status; + struct list_head * entry; + int found; + unsigned long flags; + + if(copy_from_user((void *)&f, arg, sizeof(struct fib_ioctl))) + return -EFAULT; + /* + * Extract the AdapterFibContext from the Input parameters. + */ + fibctx = (struct aac_fib_context *) f.fibctx; + + /* + * Verify that the HANDLE passed in was a valid AdapterFibContext + * + * Search the list of AdapterFibContext addresses on the adapter + * to be sure this is a valid address + */ + found = 0; + entry = dev->fib_list.next; + + while(entry != &dev->fib_list) { + aifcp = CONTAINING_RECORD(entry, struct aac_fib_context, next); + if(fibctx == aifcp) { /* We found a winner */ + found = 1; + break; + } + entry = entry->next; + } + if (found == 0) + return -EINVAL; + + if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) || + (fibctx->size != sizeof(struct aac_fib_context))) + return -EINVAL; + status = 0; + spin_lock_irqsave(&dev->fib_lock, flags); + /* + * If there are no fibs to send back, then either wait or return + * -EAGAIN + */ +return_fib: + if (!list_empty(&fibctx->fibs)) { + struct list_head * entry; + /* + * Pull the next fib from the fibs + */ + entry = fibctx->fibs.next; + list_del(entry); + + fib = CONTAINING_RECORD(entry, struct hw_fib, header.FibLinks); + fibctx->count--; + spin_unlock_irqrestore(&dev->fib_lock, flags); + if (copy_to_user(f.fib, fib, sizeof(struct hw_fib))) { + kfree(fib); + return -EFAULT; + } + /* + * Free the space occupied by this copy of the fib. + */ + kfree(fib); + status = 0; + fibctx->jiffies = jiffies/HZ; + } else { + spin_unlock_irqrestore(&dev->fib_lock, flags); + if (f.wait) { + if(down_interruptible(&fibctx->wait_sem)==0) { + status = -EINTR; + } else { + /* Lock again and retry */ + spin_lock_irqsave(&dev->fib_lock, flags); + goto return_fib; + } + } else { + status = -EAGAIN; + } + } + return status; +} + +int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx) +{ + struct hw_fib *fib; + + /* + * First free any FIBs that have not been consumed. + */ + while (!list_empty(&fibctx->fibs)) { + struct list_head * entry; + /* + * Pull the next fib from the fibs + */ + entry = fibctx->fibs.next; + list_del(entry); + fib = CONTAINING_RECORD( entry, struct hw_fib, header.FibLinks ); + fibctx->count--; + /* + * Free the space occupied by this copy of the fib. + */ + kfree(fib); + } + /* + * Remove the Context from the AdapterFibContext List + */ + list_del(&fibctx->next); + /* + * Invalidate context + */ + fibctx->type = 0; + /* + * Free the space occupied by the Context + */ + kfree(fibctx); + return 0; +} + +/** + * close_getadapter_fib - close down user fib context + * @dev: adapter + * @arg: ioctl arguments + * + * This routine will close down the fibctx passed in from the user. + */ + +static int close_getadapter_fib(struct aac_dev * dev, void *arg) +{ + struct aac_fib_context *fibctx, *aifcp; + int status; + unsigned long flags; + struct list_head * entry; + int found; + + /* + * Extract the fibctx from the input parameters + */ + fibctx = arg; + + /* + * Verify that the HANDLE passed in was a valid AdapterFibContext + * + * Search the list of AdapterFibContext addresses on the adapter + * to be sure this is a valid address + */ + + found = 0; + entry = dev->fib_list.next; + + while(entry != &dev->fib_list) { + aifcp = CONTAINING_RECORD(entry, struct aac_fib_context, next); + if(fibctx == aifcp) { /* We found a winner */ + found = 1; + break; + } + entry = entry->next; + } + + if(found == 0) + return 0; /* Already gone */ + + if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) || + (fibctx->size != sizeof(struct aac_fib_context))) { + return -EINVAL; + } + spin_lock_irqsave(dev->fib_lock, flags); + status = aac_close_fib_context(dev, fibctx); + spin_unlock_irqrestore(dev->fib_lock, flags); + return status; +} + + +int aac_do_ioctl(struct aac_dev * dev, int cmd, void *arg) +{ + int status; + + /* + * HBA gets first crack + */ + + status = aac_dev_ioctl(dev, cmd, arg); + if(status != -ENOTTY) + return status; + + switch (cmd) { + case FSACTL_SENDFIB: + status = ioctl_send_fib(dev, arg); + break; + case FSACTL_OPEN_GET_ADAPTER_FIB: + status = open_getadapter_fib(dev, arg); + break; + case FSACTL_GET_NEXT_ADAPTER_FIB: + status = next_getadapter_fib(dev, arg); + break; + case FSACTL_CLOSE_GET_ADAPTER_FIB: + status = close_getadapter_fib(dev, arg); + break; + default: + status = -ENOTTY; + break; + } + return status; +} + diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/aacraid/comminit.c linux.gamma/drivers/scsi/aacraid/comminit.c --- linux.15p3/drivers/scsi/aacraid/comminit.c Thu Jan 1 01:00:00 1970 +++ linux.gamma/drivers/scsi/aacraid/comminit.c Fri Nov 30 13:59:28 2001 @@ -0,0 +1,332 @@ +/* + * Adaptec AAC series RAID controller driver + * (c) Copyright 2001 Red Hat Inc. + * + * based on the old aacraid driver that is.. + * Adaptec aacraid device driver for Linux. + * + * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Module Name: + * comminit.c + * + * Abstract: This supports the initialization of the host adapter commuication interface. + * This is a platform dependent module for the pci cyclone board. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "scsi.h" +#include "hosts.h" + +#include "aacraid.h" + +struct aac_common aac_config; + +static struct aac_dev *devices; + +static int aac_alloc_comm(struct aac_dev *dev, void **CommHeaderAddress, unsigned long CommAreaSize, unsigned long CommAreaAlignment) +{ + unsigned char *base; + unsigned long size, BytesToAlign; + unsigned long fibsize = 4096; + unsigned long printfbufsiz = 256; + struct aac_init *init; + dma_addr_t phys; + + size = fibsize + sizeof(struct aac_init) + CommAreaSize + CommAreaAlignment + printfbufsiz; + + base = pci_alloc_consistent(dev->pdev, size, &phys); + if(base == NULL) + { + printk(KERN_ERR "aacraid: unable to create mapping.\n"); + return 0; + } + dev->comm_addr = (void *)base; + dev->comm_phys = phys; + dev->comm_size = size; + + dev->init = (struct aac_init *)(base + fibsize); + dev->init_pa = (struct aac_init *)(phys + fibsize); + + init = dev->init; + + init->InitStructRevision = ADAPTER_INIT_STRUCT_REVISION; + init->MiniPortRevision = Sa_MINIPORT_REVISION; + init->fsrev = dev->fsrev; + + /* + * Adapter Fibs are the first thing allocated so that they + * start page aligned + */ + init->AdapterFibsVirtualAddress = base; + init->AdapterFibsPhysicalAddress = (void *) phys; + init->AdapterFibsSize = fibsize; + init->AdapterFibAlign = sizeof(struct hw_fib); + + /* + * Increment the base address by the amount already used + */ + base = base + fibsize + sizeof(struct aac_init); + phys = phys + fibsize + sizeof(struct aac_init); + /* + * Align the beginning of Headers to CommAreaAlignment + */ + BytesToAlign = (CommAreaAlignment - ((unsigned long)(base) & (CommAreaAlignment - 1))); + base = base + BytesToAlign; + phys = phys + BytesToAlign; + /* + * Fill in addresses of the Comm Area Headers and Queues + */ + *CommHeaderAddress = (unsigned long *)base; + init->CommHeaderAddress = (void *)phys; + /* + * Increment the base address by the size of the CommArea + */ + base = base + CommAreaSize; + phys = phys + CommAreaSize; + /* + * Place the Printf buffer area after the Fast I/O comm area. + */ + dev->printfbuf = (void *)base; + init->printfbuf = (void *)phys; + init->printfbufsiz = printfbufsiz; + memset(base, 0, printfbufsiz); + return 1; +} + +static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize) +{ + q->numpending = 0; + q->dev = dev; + INIT_LIST_HEAD(&q->pendingq); + init_waitqueue_head(&q->cmdready); + INIT_LIST_HEAD(&q->cmdq); + init_waitqueue_head(&q->qfull); + spin_lock_init(&q->lockdata); + q->lock = &q->lockdata; + q->headers.producer = mem; + q->headers.consumer = mem+1; + *q->headers.producer = qsize; + *q->headers.consumer = qsize; + q->entries = qsize; +} + +/** + * aac_send_shutdown - shutdown an adapter + * @dev: Adapter to shutdown + * + * This routine will send a VM_CloseAll (shutdown) request to the adapter. + */ + +static int aac_send_shutdown(struct aac_dev * dev) +{ + struct fib * fibctx; + struct aac_close *cmd; + int status; + + fibctx = fib_alloc(dev); + fib_init(fibctx); + + cmd = (struct aac_close *) fib_data(fibctx); + + cmd->command = VM_CloseAll; + cmd->cid = 0xffffffff; + + status = fib_send(ContainerCommand, + fibctx, + sizeof(struct aac_close), + FsaNormal, + 1, 1, + NULL, NULL); + + if (status == 0) + fib_complete(fibctx); + fib_free(fibctx); + return status; +} + +/** + * aac_detach - detach adapter + * @detach: adapter to disconnect + * + * Disconnect and shutdown an AAC based adapter, freeing resources + * as we go. + */ + +int aac_detach(struct aac_dev *detach) +{ + struct aac_dev **dev = &devices; + + while(*dev) + { + if(*dev == detach) + { + *dev = detach->next; + aac_send_shutdown(detach); + fib_map_free(detach); + pci_free_consistent(detach->pdev, detach->comm_size, detach->comm_addr, detach->comm_phys); + kfree(detach->queues); + return 1; + } + dev=&((*dev)->next); + } + BUG(); + return 0; +} + +/** + * aac_comm_init - Initialise FSA data structures + * @dev: Adapter to intialise + * + * Initializes the data structures that are required for the FSA commuication + * interface to operate. + * Returns + * 1 - if we were able to init the commuication interface. + * 0 - If there were errors initing. This is a fatal error. + */ + +int aac_comm_init(struct aac_dev * dev) +{ + unsigned long hdrsize = (sizeof(u32) * NUMBER_OF_COMM_QUEUES) * 2; + unsigned long queuesize = sizeof(struct aac_entry) * TOTAL_QUEUE_ENTRIES; + u32 *headers; + struct aac_entry * queues; + unsigned long size; + struct aac_queue_block * comm = dev->queues; + + /* + * Now allocate and initialize the zone structures used as our + * pool of FIB context records. The size of the zone is based + * on the system memory size. We also initialize the mutex used + * to protect the zone. + */ + spin_lock_init(&dev->FibContextZoneSpinLock); + + /* + * Allocate the physically contigous space for the commuication + * queue headers. + */ + + size = hdrsize + queuesize; + + if (!aac_alloc_comm(dev, (void * *)&headers, size, QUEUE_ALIGNMENT)) + return -ENOMEM; + + queues = (struct aac_entry *)((unsigned char *)headers + hdrsize); + + /* Adapter to Host normal priority Command queue */ + comm->queue[HostNormCmdQueue].base = queues; + aac_queue_init(dev, &comm->queue[HostNormCmdQueue], headers, HOST_NORM_CMD_ENTRIES); + queues += HOST_NORM_CMD_ENTRIES; + headers += 2; + + /* Adapter to Host high priority command queue */ + comm->queue[HostHighCmdQueue].base = queues; + aac_queue_init(dev, &comm->queue[HostHighCmdQueue], headers, HOST_HIGH_CMD_ENTRIES); + + queues += HOST_HIGH_CMD_ENTRIES; + headers +=2; + + /* Host to adapter normal priority command queue */ + comm->queue[AdapNormCmdQueue].base = queues; + aac_queue_init(dev, &comm->queue[AdapNormCmdQueue], headers, ADAP_NORM_CMD_ENTRIES); + + queues += ADAP_NORM_CMD_ENTRIES; + headers += 2; + + /* host to adapter high priority command queue */ + comm->queue[AdapHighCmdQueue].base = queues; + aac_queue_init(dev, &comm->queue[AdapHighCmdQueue], headers, ADAP_HIGH_CMD_ENTRIES); + + queues += ADAP_HIGH_CMD_ENTRIES; + headers += 2; + + /* adapter to host normal priority response queue */ + comm->queue[HostNormRespQueue].base = queues; + aac_queue_init(dev, &comm->queue[HostNormRespQueue], headers, HOST_NORM_RESP_ENTRIES); + + queues += HOST_NORM_RESP_ENTRIES; + headers += 2; + + /* adapter to host high priority response queue */ + comm->queue[HostHighRespQueue].base = queues; + aac_queue_init(dev, &comm->queue[HostHighRespQueue], headers, HOST_HIGH_RESP_ENTRIES); + + queues += HOST_HIGH_RESP_ENTRIES; + headers += 2; + + /* host to adapter normal priority response queue */ + comm->queue[AdapNormRespQueue].base = queues; + aac_queue_init(dev, &comm->queue[AdapNormRespQueue], headers, ADAP_NORM_RESP_ENTRIES); + + queues += ADAP_NORM_RESP_ENTRIES; + headers += 2; + + /* host to adapter high priority response queue */ + comm->queue[AdapHighRespQueue].base = queues; + aac_queue_init(dev, &comm->queue[AdapHighRespQueue], headers, ADAP_HIGH_RESP_ENTRIES); + + comm->queue[AdapNormCmdQueue].lock = comm->queue[HostNormRespQueue].lock; + comm->queue[AdapHighCmdQueue].lock = comm->queue[HostHighRespQueue].lock; + comm->queue[AdapNormRespQueue].lock = comm->queue[HostNormCmdQueue].lock; + comm->queue[AdapHighRespQueue].lock = comm->queue[HostHighCmdQueue].lock; + + return 0; +} + +struct aac_dev *aac_init_adapter(struct aac_dev *dev) +{ + /* + * Ok now init the communication subsystem + */ + dev->queues = (struct aac_queue_block *) kmalloc(sizeof(struct aac_queue_block), GFP_KERNEL); + if (dev->queues == NULL) { + printk(KERN_ERR "Error could not allocate comm region.\n"); + return NULL; + } + memset(dev->queues, 0, sizeof(struct aac_queue_block)); + + if (aac_comm_init(dev)<0) + return NULL; + /* + * Initialize the list of fibs + */ + if(fib_setup(dev)<0) + return NULL; + + INIT_LIST_HEAD(&dev->fib_list); + spin_lock_init(&dev->fib_lock); + init_completion(&dev->aif_completion); + /* + * Add this adapter in to our dev List. + */ + dev->next = devices; + devices = dev; + return dev; +} + + diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/aacraid/commsup.c linux.gamma/drivers/scsi/aacraid/commsup.c --- linux.15p3/drivers/scsi/aacraid/commsup.c Thu Jan 1 01:00:00 1970 +++ linux.gamma/drivers/scsi/aacraid/commsup.c Fri Nov 30 13:56:28 2001 @@ -0,0 +1,945 @@ +/* + * Adaptec AAC series RAID controller driver + * (c) Copyright 2001 Red Hat Inc. + * + * based on the old aacraid driver that is.. + + * Adaptec aacraid device driver for Linux. + * + * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Module Name: + * commsup.c + * + * Abstract: Contain all routines that are required for FSA host/adapter + * commuication. + * + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "scsi.h" +#include "hosts.h" + +#include "aacraid.h" + +/** + * fib_map_alloc - allocate the fib objects + * @dev: Adapter to allocate for + * + * Allocate and map the shared PCI space for the FIB blocks used to + * talk to the Adaptec firmware. + */ + +static int fib_map_alloc(struct aac_dev *dev) +{ + if((dev->hw_fib_va = pci_alloc_consistent(dev->pdev, sizeof(struct hw_fib) * AAC_NUM_FIB, &dev->hw_fib_pa))==NULL) + return -ENOMEM; + return 0; +} + +/** + * fib_map_free - free the fib objects + * @dev: Adapter to free + * + * Free the PCI mappings and the memory allocated for FIB blocks + * on this adapter. + */ + +void fib_map_free(struct aac_dev *dev) +{ + pci_free_consistent(dev->pdev, sizeof(struct hw_fib) * AAC_NUM_FIB, dev->hw_fib_va, dev->hw_fib_pa); +} + +/** + * fib_setup - setup the fibs + * @dev: Adapter to set up + * + * Allocate the PCI space for the fibs, map it and then intialise the + * fib area, the unmapped fib data and also the free list + */ + +int fib_setup(struct aac_dev * dev) +{ + struct fib *fibptr; + struct hw_fib *fib; + dma_addr_t fibpa; + int i; + + if(fib_map_alloc(dev)<0) + return -ENOMEM; + + fib = dev->hw_fib_va; + fibpa = dev->hw_fib_pa; + memset(fib, 0, sizeof(struct hw_fib) * AAC_NUM_FIB); + /* + * Initialise the fibs + */ + for (i = 0, fibptr = &dev->fibs[i]; i < AAC_NUM_FIB; i++, fibptr++) + { + fibptr->dev = dev; + fibptr->fib = fib; + fibptr->data = (void *) fibptr->fib->data; + fibptr->next = fibptr+1; /* Forward chain the fibs */ + init_MUTEX_LOCKED(&fibptr->event_wait); + spin_lock_init(&fibptr->event_lock); + fib->header.XferState = 0xffffffff; + fib->header.SenderSize = sizeof(struct hw_fib); + fibptr->logicaladdr = (unsigned long) fibpa; + fib = (struct hw_fib *)((unsigned char *)fib + sizeof(struct hw_fib)); + fibpa = fibpa + sizeof(struct hw_fib); + } + /* + * Add the fib chain to the free list + */ + dev->fibs[AAC_NUM_FIB-1].next = NULL; + /* + * Enable this to debug out of queue space + */ + dev->free_fib = &dev->fibs[0]; + return 0; +} + +/** + * fib_alloc - allocate a fib + * @dev: Adapter to allocate the fib for + * + * Allocate a fib from the adapter fib pool. If the pool is empty we + * wait for fibs to become free. + */ + +struct fib * fib_alloc(struct aac_dev *dev) +{ + struct fib * fibptr; + unsigned long flags; + + spin_lock_irqsave(&dev->fib_lock, flags); + fibptr = dev->free_fib; + if(!fibptr) + BUG(); + dev->free_fib = fibptr->next; + spin_unlock_irqrestore(&dev->fib_lock, flags); + /* + * Set the proper node type code and node byte size + */ + fibptr->type = FSAFS_NTC_FIB_CONTEXT; + fibptr->size = sizeof(struct fib); + /* + * Null out fields that depend on being zero at the start of + * each I/O + */ + fibptr->fib->header.XferState = 0; + fibptr->callback = NULL; + fibptr->callback_data = NULL; + + return fibptr; +} + +/** + * fib_free - free a fib + * @fibptr: fib to free up + * + * Frees up a fib and places it on the appropriate queue + * (either free or timed out) + */ + +void fib_free(struct fib * fibptr) +{ + unsigned long flags; + + spin_lock_irqsave(&fibptr->dev->fib_lock, flags); + + if (fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT) { + aac_config.fib_timeouts++; + fibptr->next = fibptr->dev->timeout_fib; + fibptr->dev->timeout_fib = fibptr; + } else { + if (fibptr->fib->header.XferState != 0) { + printk(KERN_WARNING "fib_free, XferState != 0, fibptr = 0x%p, XferState = 0x%x\n", + fibptr, fibptr->fib->header.XferState); + } + fibptr->next = fibptr->dev->free_fib; + fibptr->dev->free_fib = fibptr; + } + spin_unlock_irqrestore(&fibptr->dev->fib_lock, flags); +} + +/** + * fib_init - initialise a fib + * @fibptr: The fib to initialize + * + * Set up the generic fib fields ready for use + */ + +void fib_init(struct fib *fibptr) +{ + struct hw_fib *fib = fibptr->fib; + + fib->header.StructType = FIB_MAGIC; + fib->header.Size = sizeof(struct hw_fib); + fib->header.XferState = HostOwned | FibInitialized | FibEmpty | FastResponseCapable; + fib->header.SenderFibAddress = 0; + fib->header.ReceiverFibAddress = 0; + fib->header.SenderSize = sizeof(struct hw_fib); +} + +/** + * fib_deallocate - deallocate a fib + * @fibptr: fib to deallocate + * + * Will deallocate and return to the free pool the FIB pointed to by the + * caller. + */ + +void fib_dealloc(struct fib * fibptr) +{ + struct hw_fib *fib = fibptr->fib; + if(fib->header.StructType != FIB_MAGIC) + BUG(); + fib->header.XferState = 0; +} + +/* + * Commuication primitives define and support the queuing method we use to + * support host to adapter commuication. All queue accesses happen through + * these routines and are the only routines which have a knowledge of the + * how these queues are implemented. + */ + +/** + * aac_get_entry - get a queue entry + * @dev: Adapter + * @qid: Queue Number + * @entry: Entry return + * @index: Index return + * @nonotify: notification control + * + * With a priority the routine returns a queue entry if the queue has free entries. If the queue + * is full(no free entries) than no entry is returned and the function returns 0 otherwise 1 is + * returned. + */ + +static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entry, u32 * index, unsigned long *nonotify) +{ + struct aac_queue * q; + + /* + * All of the queues wrap when they reach the end, so we check + * to see if they have reached the end and if they have we just + * set the index back to zero. This is a wrap. You could or off + * the high bits in all updates but this is a bit faster I think. + */ + + q = &dev->queues->queue[qid]; + + *index = *(q->headers.producer); + if (*index - 2 == *(q->headers.consumer)) + *nonotify = 1; + + if (qid == AdapHighCmdQueue) { + if (*index >= ADAP_HIGH_CMD_ENTRIES) + *index = 0; + /* SCALING ?? */ + } else if (qid == AdapNormCmdQueue) { + if (*index >= ADAP_NORM_CMD_ENTRIES) + *index = 0; /* Wrap to front of the Producer Queue. */ + } + else if (qid == AdapHighRespQueue) + { + if (*index >= ADAP_HIGH_RESP_ENTRIES) + *index = 0; + } + else if (qid == AdapNormRespQueue) + { + if (*index >= ADAP_NORM_RESP_ENTRIES) + *index = 0; /* Wrap to front of the Producer Queue. */ + } + else BUG(); + + if (*index + 1 == *(q->headers.consumer)) { /* Queue is full */ + printk(KERN_WARNING "Queue %d full, %ld outstanding.\n", + qid, q->numpending); + return 0; + } else { + *entry = q->base + *index; + return 1; + } +} + +/** + * aac_queue_get - get the next free QE + * @dev: Adapter + * @index: Returned index + * @priority: Priority of fib + * @fib: Fib to associate with the queue entry + * @wait: Wait if queue full + * @fibptr: Driver fib object to go with fib + * @nonotify: Don't notify the adapter + * + * Gets the next free QE off the requested priorty adapter command + * queue and associates the Fib with the QE. The QE represented by + * index is ready to insert on the queue when this routine returns + * success. + */ + +static int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * fib, int wait, struct fib * fibptr, unsigned long *nonotify) +{ + struct aac_entry * entry = NULL; + int map = 0; + struct aac_queue * q = &dev->queues->queue[qid]; + + spin_lock_irqsave(q->lock, q->SavedIrql); + + if (qid == AdapHighCmdQueue || qid == AdapNormCmdQueue) + { + /* if no entries wait for some if caller wants to */ + while (!aac_get_entry(dev, qid, &entry, index, nonotify)) + { + printk(KERN_ERR "GetEntries failed\n"); + } + /* + * Setup queue entry with a command, status and fib mapped + */ + entry->size = fib->header.Size; + map = 1; + } + else if (qid == AdapHighRespQueue || qid == AdapNormRespQueue) + { + while(!aac_get_entry(dev, qid, &entry, index, nonotify)) + { + /* if no entries wait for some if caller wants to */ + } + /* + * Setup queue entry with command, status and fib mapped + */ + entry->size = fib->header.Size; + entry->addr = fib->header.SenderFibAddress; /* Restore adapters pointer to the FIB */ + fib->header.ReceiverFibAddress = fib->header.SenderFibAddress; /* Let the adapter now where to find its data */ + map = 0; + } + /* + * If MapFib is true than we need to map the Fib and put pointers + * in the queue entry. + */ + if (map) + entry->addr = (unsigned long)(fibptr->logicaladdr); + return 0; +} + + +/** + * aac_insert_entry - insert a queue entry + * @dev: Adapter + * @index: Index of entry to insert + * @qid: Queue number + * @nonotify: Suppress adapter notification + * + * Gets the next free QE off the requested priorty adapter command + * queue and associates the Fib with the QE. The QE represented by + * index is ready to insert on the queue when this routine returns + * success. + */ + +static int aac_insert_entry(struct aac_dev * dev, u32 index, u32 qid, unsigned long nonotify) +{ + struct aac_queue * q = &dev->queues->queue[qid]; + + if(q == NULL) + BUG(); + *(q->headers.producer) = index + 1; + spin_unlock_irqrestore(q->lock, q->SavedIrql); + + if (qid == AdapHighCmdQueue || + qid == AdapNormCmdQueue || + qid == AdapHighRespQueue || + qid == AdapNormRespQueue) + { + if (!nonotify) + aac_adapter_notify(dev, qid); + } + else + printk("Suprise insert!\n"); + return 0; +} + +/* + * Define the highest level of host to adapter communication routines. + * These routines will support host to adapter FS commuication. These + * routines have no knowledge of the commuication method used. This level + * sends and receives FIBs. This level has no knowledge of how these FIBs + * get passed back and forth. + */ + +/** + * fib_send - send a fib to the adapter + * @command: Command to send + * @fibptr: The fib + * @size: Size of fib data area + * @priority: Priority of Fib + * @wait: Async/sync select + * @reply: True if a reply is wanted + * @callback: Called with reply + * @callback_data: Passed to callback + * + * Sends the requested FIB to the adapter and optionally will wait for a + * response FIB. If the caller does not wish to wait for a response than + * an event to wait on must be supplied. This event will be set when a + * response FIB is received from the adapter. + */ + +int fib_send(u16 command, struct fib * fibptr, unsigned long size, int priority, int wait, int reply, fib_callback callback, void * callback_data) +{ + u32 index; + u32 qid; + struct aac_dev * dev = fibptr->dev; + unsigned long nointr = 0; + struct hw_fib * fib = fibptr->fib; + struct aac_queue * q; + unsigned long flags; + + if (!(fib->header.XferState & HostOwned)) + return -EBUSY; + /* + * There are 5 cases with the wait and reponse requested flags. + * The only invalid cases are if the caller requests to wait and + * does not request a response and if the caller does not want a + * response and the Fibis not allocated from pool. If a response + * is not requesed the Fib will just be deallocaed by the DPC + * routine when the response comes back from the adapter. No + * further processing will be done besides deleting the Fib. We + * will have a debug mode where the adapter can notify the host + * it had a problem and the host can log that fact. + */ + if (wait && !reply) { + return -EINVAL; + } else if (!wait && reply) { + fib->header.XferState |= (Async | ResponseExpected); + FIB_COUNTER_INCREMENT(aac_config.AsyncSent); + } else if (!wait && !reply) { + fib->header.XferState |= NoResponseExpected; + FIB_COUNTER_INCREMENT(aac_config.NoResponseSent); + } else if (wait && reply) { + fib->header.XferState |= ResponseExpected; + FIB_COUNTER_INCREMENT(aac_config.NormalSent); + } + fib->header.SenderData = (unsigned long)fibptr; /* for callback */ + /* + * Set FIB state to indicate where it came from and if we want a + * response from the adapter. Also load the command from the + * caller. + */ + fib->header.SenderFibAddress = (unsigned long)fib; + fib->header.Command = command; + fib->header.XferState |= SentFromHost; + fibptr->fib->header.Flags = 0; /* Zero the flags field - its internal only... */ + /* + * Set the size of the Fib we want to send to the adapter + */ + fib->header.Size = sizeof(struct aac_fibhdr) + size; + if (fib->header.Size > fib->header.SenderSize) { + return -EMSGSIZE; + } + /* + * Get a queue entry connect the FIB to it and send an notify + * the adapter a command is ready. + */ + if (priority == FsaHigh) { + fib->header.XferState |= HighPriority; + qid = AdapHighCmdQueue; + } else { + fib->header.XferState |= NormalPriority; + qid = AdapNormCmdQueue; + } + q = &dev->queues->queue[qid]; + + if(wait) + spin_lock_irqsave(&fibptr->event_lock, flags); + if(aac_queue_get( dev, &index, qid, fib, 1, fibptr, &nointr)<0) + return -EWOULDBLOCK; + dprintk((KERN_DEBUG "fib_send: inserting a queue entry at index %d.\n",index)); + dprintk((KERN_DEBUG "Fib contents:.\n")); + dprintk((KERN_DEBUG " Command = %d.\n", fib->header.Command)); + dprintk((KERN_DEBUG " XferState = %x.\n", fib->header.XferState)); + /* + * Fill in the Callback and CallbackContext if we are not + * going to wait. + */ + if (!wait) { + fibptr->callback = callback; + fibptr->callback_data = callback_data; + } + FIB_COUNTER_INCREMENT(aac_config.FibsSent); + list_add_tail(&fibptr->queue, &q->pendingq); + q->numpending++; + + fibptr->done = 0; + + if(aac_insert_entry(dev, index, qid, (nointr & aac_config.irq_mod)) < 0) + return -EWOULDBLOCK; + /* + * If the caller wanted us to wait for response wait now. + */ + + if (wait) { + spin_unlock_irqrestore(&fibptr->event_lock, flags); + down(&fibptr->event_wait); + if(fibptr->done == 0) + BUG(); + + if((fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) + return -ETIMEDOUT; + else + return 0; + } + /* + * If the user does not want a response than return success otherwise + * return pending + */ + if (reply) + return -EINPROGRESS; + else + return 0; +} + +/** + * aac_consumer_get - get the top of the queue + * @dev: Adapter + * @q: Queue + * @entry: Return entry + * + * Will return a pointer to the entry on the top of the queue requested that + * we are a consumer of, and return the address of the queue entry. It does + * not change the state of the queue. + */ + +int aac_consumer_get(struct aac_dev * dev, struct aac_queue * q, struct aac_entry **entry) +{ + u32 index; + int status; + + if (*q->headers.producer == *q->headers.consumer) { + status = 0; + } else { + /* + * The consumer index must be wrapped if we have reached + * the end of the queue, else we just use the entry + * pointed to by the header index + */ + if (*q->headers.consumer >= q->entries) + index = 0; + else + index = *q->headers.consumer; + *entry = q->base + index; + status = 1; + } + return(status); +} + +int aac_consumer_avail(struct aac_dev *dev, struct aac_queue * q) +{ + return (*q->headers.producer != *q->headers.consumer); +} + + +/** + * aac_consumer_free - free consumer entry + * @dev: Adapter + * @q: Queue + * @qid: Queue ident + * + * Frees up the current top of the queue we are a consumer of. If the + * queue was full notify the producer that the queue is no longer full. + */ + +void aac_consumer_free(struct aac_dev * dev, struct aac_queue *q, u32 qid) +{ + int wasfull = 0; + u32 notify; + + if (*q->headers.producer+1 == *q->headers.consumer) + wasfull = 1; + + if (*q->headers.consumer >= q->entries) + *q->headers.consumer = 1; + else + *q->headers.consumer += 1; + + if (wasfull) { + switch (qid) { + + case HostNormCmdQueue: + notify = HostNormCmdNotFull; + break; + case HostHighCmdQueue: + notify = HostHighCmdNotFull; + break; + case HostNormRespQueue: + notify = HostNormRespNotFull; + break; + case HostHighRespQueue: + notify = HostHighRespNotFull; + break; + default: + BUG(); + return; + } + aac_adapter_notify(dev, notify); + } +} + +/** + * fib_adapter_complete - complete adapter issued fib + * @fibptr: fib to complete + * @size: size of fib + * + * Will do all necessary work to complete a FIB that was sent from + * the adapter. + */ + +int fib_adapter_complete(struct fib * fibptr, unsigned short size) +{ + struct hw_fib * fib = fibptr->fib; + struct aac_dev * dev = fibptr->dev; + unsigned long nointr = 0; + + if (fib->header.XferState == 0) + return 0; + /* + * If we plan to do anything check the structure type first. + */ + if ( fib->header.StructType != FIB_MAGIC ) { + return -EINVAL; + } + /* + * This block handles the case where the adapter had sent us a + * command and we have finished processing the command. We + * call completeFib when we are done processing the command + * and want to send a response back to the adapter. This will + * send the completed cdb to the adapter. + */ + if (fib->header.XferState & SentFromAdapter) { + fib->header.XferState |= HostProcessed; + if (fib->header.XferState & HighPriority) { + u32 index; + if (size) + { + size += sizeof(struct aac_fibhdr); + if (size > fib->header.SenderSize) + return -EMSGSIZE; + fib->header.Size = size; + } + if(aac_queue_get(dev, &index, AdapHighRespQueue, fib, 1, NULL, &nointr) < 0) { + return -EWOULDBLOCK; + } + if (aac_insert_entry(dev, index, AdapHighRespQueue, (nointr & (int)aac_config.irq_mod)) != 0) { + } + } + else if (fib->header.XferState & NormalPriority) + { + u32 index; + + if (size) { + size += sizeof(struct aac_fibhdr); + if (size > fib->header.SenderSize) + return -EMSGSIZE; + fib->header.Size = size; + } + if (aac_queue_get(dev, &index, AdapNormRespQueue, fib, 1, NULL, &nointr) < 0) + return -EWOULDBLOCK; + if (aac_insert_entry(dev, index, AdapNormRespQueue, + (nointr & (int)aac_config.irq_mod)) != 0) + { + } + } + } + else + { + printk(KERN_WARNING "fib_complete: Unknown xferstate detected.\n"); + BUG(); + } + return 0; +} + +/** + * fib_complete - fib completion handler + * @fib: FIB to complete + * + * Will do all necessary work to complete a FIB. + */ + +int fib_complete(struct fib * fibptr) +{ + struct hw_fib * fib = fibptr->fib; + + /* + * Check for a fib which has already been completed + */ + + if (fib->header.XferState == 0) + return 0; + /* + * If we plan to do anything check the structure type first. + */ + + if (fib->header.StructType != FIB_MAGIC) + return -EINVAL; + /* + * This block completes a cdb which orginated on the host and we + * just need to deallocate the cdb or reinit it. At this point the + * command is complete that we had sent to the adapter and this + * cdb could be reused. + */ + if((fib->header.XferState & SentFromHost) && + (fib->header.XferState & AdapterProcessed)) + { + fib_dealloc(fibptr); + } + else if(fib->header.XferState & SentFromHost) + { + /* + * This handles the case when the host has aborted the I/O + * to the adapter because the adapter is not responding + */ + fib_dealloc(fibptr); + } else if(fib->header.XferState & HostOwned) { + fib_dealloc(fibptr); + } else { + BUG(); + } + return 0; +} + +/** + * aac_printf - handle printf from firmware + * @dev: Adapter + * @val: Message info + * + * Print a message passed to us by the controller firmware on the + * Adaptec board + */ + +void aac_printf(struct aac_dev *dev, u32 val) +{ + int length = val & 0xffff; + int level = (val >> 16) & 0xffff; + char *cp = dev->printfbuf; + + /* + * The size of the printfbuf is set in port.c + * There is no variable or define for it + */ + if (length > 255) + length = 255; + if (cp[length] != 0) + cp[length] = 0; + if (level == LOG_HIGH_ERROR) + printk(KERN_WARNING "aacraid:%s.\n", cp); + else + printk(KERN_INFO "aacraid:%s.\n", cp); + memset(cp, 0, 256); +} + + +/** + * aac_handle_aif - Handle a message from the firmware + * @dev: Which adapter this fib is from + * @fibptr: Pointer to fibptr from adapter + * + * This routine handles a driver notify fib from the adapter and + * dispatches it to the appropriate routine for handling. + */ + +static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) +{ + struct hw_fib * fib = fibptr->fib; + /* + * Set the status of this FIB to be Invalid parameter. + * + * *(u32 *)fib->data = ST_INVAL; + */ + *(u32 *)fib->data = ST_OK; + fib_adapter_complete(fibptr, sizeof(u32)); +} + +/** + * aac_command_thread - command processing thread + * @dev: Adapter to monitor + * + * Waits on the commandready event in it's queue. When the event gets set + * it will pull FIBs off it's queue. It will continue to pull FIBs off + * until the queue is empty. When the queue is empty it will wait for + * more FIBs. + */ + +int aac_command_thread(struct aac_dev * dev) +{ + struct hw_fib *fib, *newfib; + struct fib fibptr; /* for error logging */ + struct aac_queue_block *queues = dev->queues; + struct aac_fib_context *fibctx; + unsigned long flags; + DECLARE_WAITQUEUE(wait, current); + + /* + * We can only have one thread per adapter for AIF's. + */ + if (dev->aif_thread) + return -EINVAL; + /* + * Set up the name that will appear in 'ps' + * stored in task_struct.comm[16]. + */ + sprintf(current->comm, "AIFd"); + daemonize(); + /* + * Let the DPC know it has a place to send the AIF's to. + */ + dev->aif_thread = 1; + memset(&fibptr, 0, sizeof(struct fib)); + add_wait_queue(&queues->queue[HostNormCmdQueue].cmdready, &wait); + set_current_state(TASK_INTERRUPTIBLE); + while(1) + { + spin_lock_irqsave(queues->queue[HostNormCmdQueue].lock, flags); + while(!list_empty(&(queues->queue[HostNormCmdQueue].cmdq))) { + struct list_head *entry; + struct aac_aifcmd * aifcmd; + + set_current_state(TASK_RUNNING); + + entry = queues->queue[HostNormCmdQueue].cmdq.next; + list_del(entry); + + spin_unlock_irqrestore(queues->queue[HostNormCmdQueue].lock, flags); + fib = CONTAINING_RECORD( entry, struct hw_fib, header.FibLinks ); + /* + * We will process the FIB here or pass it to a + * worker thread that is TBD. We Really can't + * do anything at this point since we don't have + * anything defined for this thread to do. + */ + memset(&fibptr, 0, sizeof(struct fib)); + fibptr.type = FSAFS_NTC_FIB_CONTEXT; + fibptr.size = sizeof( struct fib ); + fibptr.fib = fib; + fibptr.data = fib->data; + fibptr.dev = dev; + /* + * We only handle AifRequest fibs from the adapter. + */ + aifcmd = (struct aac_aifcmd *) fib->data; + if (aifcmd->command == AifCmdDriverNotify) { + aac_handle_aif(dev, &fibptr); + } else { + /* The u32 here is important and intended. We are using + 32bit wrapping time to fit the adapter field */ + + u32 time_now, time_last; + unsigned long flagv; + + time_now = jiffies/HZ; + + spin_lock_irqsave(&dev->fib_lock, flagv); + entry = dev->fib_list.next; + /* + * For each Context that is on the + * fibctxList, make a copy of the + * fib, and then set the event to wake up the + * thread that is waiting for it. + */ + while (entry != &dev->fib_list) { + /* + * Extract the fibctx + */ + fibctx = CONTAINING_RECORD(entry, struct aac_fib_context, next); + /* + * Check if the queue is getting + * backlogged + */ + if (fibctx->count > 20) + { + time_last = fibctx->jiffies; + /* + * Has it been > 2 minutes + * since the last read off + * the queue? + */ + if ((time_now - time_last) > 120) { + entry = entry->next; + aac_close_fib_context(dev, fibctx); + continue; + } + } + /* + * Warning: no sleep allowed while + * holding spinlock + */ + newfib = kmalloc(sizeof(struct hw_fib), GFP_ATOMIC); + if (newfib) { + /* + * Make the copy of the FIB + */ + memcpy(newfib, fib, sizeof(struct hw_fib)); + /* + * Put the FIB onto the + * fibctx's fibs + */ + list_add_tail(&newfib->header.FibLinks, &fibctx->fibs); + fibctx->count++; + /* + * Set the event to wake up the + * thread that will waiting. + */ + up(&fibctx->wait_sem); + } else { + printk(KERN_WARNING "aifd: didn't allocate NewFib.\n"); + } + entry = entry->next; + } + /* + * Set the status of this FIB + */ + *(u32 *)fib->data = ST_OK; + fib_adapter_complete(&fibptr, sizeof(u32)); + spin_unlock_irqrestore(&dev->fib_lock, flagv); + } + spin_lock_irqsave(queues->queue[HostNormCmdQueue].lock, flags); + } + /* + * There are no more AIF's + */ + spin_unlock_irqrestore(queues->queue[HostNormCmdQueue].lock, flags); + schedule(); + + if(signal_pending(current)) + break; + set_current_state(TASK_INTERRUPTIBLE); + } + remove_wait_queue(&queues->queue[HostNormCmdQueue].cmdready, &wait); + dev->aif_thread = 0; + complete_and_exit(&dev->aif_completion, 0); +} diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/aacraid/dpcsup.c linux.gamma/drivers/scsi/aacraid/dpcsup.c --- linux.15p3/drivers/scsi/aacraid/dpcsup.c Thu Jan 1 01:00:00 1970 +++ linux.gamma/drivers/scsi/aacraid/dpcsup.c Fri Nov 30 13:57:43 2001 @@ -0,0 +1,201 @@ +/* + * Adaptec AAC series RAID controller driver + * (c) Copyright 2001 Red Hat Inc. + * + * based on the old aacraid driver that is.. + * Adaptec aacraid device driver for Linux. + * + * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Module Name: + * dpcsup.c + * + * Abstract: All DPC processing routines for the cyclone board occur here. + * + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "scsi.h" +#include "hosts.h" + +#include "aacraid.h" + +/** + * aac_response_normal - Handle command replies + * @q: Queue to read from + * + * This DPC routine will be run when the adapter interrupts us to let us + * know there is a response on our normal priority queue. We will pull off + * all QE there are and wake up all the waiters before exiting. We will + * take a spinlock out on the queue before operating on it. + */ + +unsigned int aac_response_normal(struct aac_queue * q) +{ + struct aac_dev * dev = q->dev; + struct aac_entry *entry; + struct hw_fib * fib; + struct fib * fibctx; + int consumed = 0; + unsigned long flags; + + spin_lock_irqsave(q->lock, flags); + + /* + * Keep pulling response QEs off the response queue and waking + * up the waiters until there are no more QEs. We then return + * back to the system. If no response was requesed we just + * deallocate the Fib here and continue. + */ + while(aac_consumer_get(dev, q, &entry)) + { + int fast; + + fast = (int) (entry->addr & 0x01); + fib = (struct hw_fib *) (entry->addr & ~0x01); + aac_consumer_free(dev, q, HostNormRespQueue); + fibctx = (struct fib *)fib->header.SenderData; + /* + * Remove this fibctx from the Outstanding I/O queue. + * But only if it has not already been timed out. + * + * If the fib has been timed out already, then just + * continue. The caller has already been notified that + * the fib timed out. + */ + if (!(fibctx->flags & FIB_CONTEXT_FLAG_TIMED_OUT)) { + list_del(&fibctx->queue); + dev->queues->queue[AdapNormCmdQueue].numpending--; + } else { + printk(KERN_WARNING "aacraid: FIB timeout.\n"); + continue; + } + spin_unlock_irqrestore(q->lock, flags); + + if (fast) { + /* + * Doctor the fib + */ + *(u32 *)fib->data = ST_OK; + fib->header.XferState |= AdapterProcessed; + } + + FIB_COUNTER_INCREMENT(aac_config.FibRecved); + + if (fib->header.Command == NuFileSystem) + { + u32 *pstatus = (u32 *)fib->data; + if (*pstatus & 0xffff0000) + *pstatus = ST_OK; + } + if (fib->header.XferState & (NoResponseExpected | Async) ) + { + if (fib->header.XferState & NoResponseExpected) + FIB_COUNTER_INCREMENT(aac_config.NoResponseRecved); + else + FIB_COUNTER_INCREMENT(aac_config.AsyncRecved); + /* + * NOTE: we cannot touch the fibctx after this + * call, because it may have been deallocated. + */ + fibctx->callback(fibctx->callback_data, fibctx); + } else { + unsigned long flagv; + spin_lock_irqsave(&fibctx->event_lock, flagv); + fibctx->done = 1; + up(&fibctx->event_wait); + spin_unlock_irqrestore(&fibctx->event_lock, flagv); + FIB_COUNTER_INCREMENT(aac_config.NormalRecved); + } + consumed++; + spin_lock_irqsave(q->lock, flags); + } + + if (consumed > aac_config.peak_fibs) + aac_config.peak_fibs = consumed; + if (consumed == 0) + aac_config.zero_fibs++; + + spin_unlock_irqrestore(q->lock, flags); + return 0; +} + + +/** + * aac_command_normal - handle commands + * @q: queue to process + * + * This DPC routine will be queued when the adapter interrupts us to + * let us know there is a command on our normal priority queue. We will + * pull off all QE there are and wake up all the waiters before exiting. + * We will take a spinlock out on the queue before operating on it. + */ + +unsigned int aac_command_normal(struct aac_queue *q) +{ + struct aac_dev * dev = q->dev; + struct aac_entry *entry; + unsigned long flags; + + spin_lock_irqsave(q->lock, flags); + + /* + * Keep pulling response QEs off the response queue and waking + * up the waiters until there are no more QEs. We then return + * back to the system. + */ + while(aac_consumer_get(dev, q, &entry)) + { + struct hw_fib * fib; + fib = (struct hw_fib *)entry->addr; + + if (dev->aif_thread) { + list_add_tail(&fib->header.FibLinks, &q->cmdq); + aac_consumer_free(dev, q, HostNormCmdQueue); + wake_up_interruptible(&q->cmdready); + } else { + struct fib fibctx; + aac_consumer_free(dev, q, HostNormCmdQueue); + spin_unlock_irqrestore(q->lock, flags); + memset(&fibctx, 0, sizeof(struct fib)); + fibctx.type = FSAFS_NTC_FIB_CONTEXT; + fibctx.size = sizeof(struct fib); + fibctx.fib = fib; + fibctx.data = fib->data; + fibctx.dev = dev; + /* + * Set the status of this FIB + */ + *(u32 *)fib->data = ST_OK; + fib_adapter_complete(&fibctx, sizeof(u32)); + spin_lock_irqsave(q->lock, flags); + } + } + spin_unlock_irqrestore(q->lock, flags); + return 0; +} diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/aacraid/include/aacraid.h linux.gamma/drivers/scsi/aacraid/include/aacraid.h --- linux.15p3/drivers/scsi/aacraid/include/aacraid.h Thu Jan 1 01:00:00 1970 +++ linux.gamma/drivers/scsi/aacraid/include/aacraid.h Fri Nov 30 13:55:32 2001 @@ -0,0 +1,1242 @@ +#define dprintk(x) + +#define FAILURE 1 +#define AAC_MAX_ADAPTERS 64 +#define AAC_NUM_FIB 128 +#define AAC_NUM_IO_FIB 116 + +#define PAGE_SIZE 4096 + +/*------------------------------------------------------------------------------ + * D E F I N E S + *----------------------------------------------------------------------------*/ +/* Define the AAC SCSI Host Template structure. */ +#define AAC_HOST_TEMPLATE_ENTRY \ +{ \ + name: "AAC", /* Driver Name */ \ + proc_info: aac_procinfo, /* ProcFS Info Func */ \ + detect: aac_detect, /* Detect Host Adapter */ \ + release: aac_release, /* Release Host Adapter */ \ + info: aac_driverinfo, /* Driver Info Function */ \ + ioctl: aac_ioctl, /* ioctl Interface */ \ + command: aac_command, /* unqueued command */ \ + queuecommand: aac_queuecommand, /* Queue Command Function */ \ + abort: aac_abortcommand, /* Abort Command Function */ \ + reset: aac_resetcommand, /* Reset Command Function */ \ + bios_param: aac_biosparm, /* BIOS Disk Parameters */ \ + can_queue: AAC_NUM_IO_FIB, /* Default initial value */ \ + this_id: 16, /* Default initial value */ \ + sg_tablesize: 16, /* Default initial value */ \ + max_sectors: 128, /* max xfer size of 64k */ \ + cmd_per_lun: 1, /* Default initial value */ \ + present: 0, /* Default initial value */ \ + unchecked_isa_dma: 0, /* Default Initial Value */ \ + use_new_eh_code: 0, /* Default initial value */ \ + eh_abort_handler: aac_abortcommand, /* New Abort Command func */ \ + eh_strategy_handler: NULL, /* New Strategy Error Handler */ \ + eh_device_reset_handler:NULL, /* New Device Reset Handler */ \ + eh_bus_reset_handler: NULL, /* New Bus Reset Handler */ \ + eh_host_reset_handler: NULL, /* New Host reset Handler */ \ + use_clustering: ENABLE_CLUSTERING /* Enable Clustering */ \ +} + +struct diskparm +{ + int heads; + int sectors; + int cylinders; +}; + + +// +// Singly linked list structure. Can be used as either a list head, or +// as link words. +// + +struct single_list +{ + struct single_list *next; +}; + +// +// Calculate the address of the base of the structure given its type, and an +// address of a field within the structure. +// + +#define CONTAINING_RECORD(address, type, field) ((type *)( \ + (char *)(address) - \ + (char *)(&((type *)0)->field))) + +/* + * DON'T CHANGE THE ORDER, this is set by the firmware + */ + +#define CT_NONE 0 +#define CT_VOLUME 1 +#define CT_MIRROR 2 +#define CT_STRIPE 3 +#define CT_RAID5 4 +#define CT_SSRW 5 +#define CT_SSRO 6 +#define CT_MORPH 7 +#define CT_PASSTHRU 8 +#define CT_RAID4 9 +#define CT_RAID10 10 /* stripe of mirror */ +#define CT_RAID00 11 /* stripe of stripe */ +#define CT_VOLUME_OF_MIRRORS 12 /* volume of mirror */ +#define CT_PSEUDO_RAID 13 /* really raid4 */ +#define CT_LAST_VOLUME_TYPE 14 + +/* + * Types of objects addressable in some fashion by the client. + * This is a superset of those objects handled just by the filesystem + * and includes "raw" objects that an administrator would use to + * configure containers and filesystems. + */ + +#define FT_REG 1 /* regular file */ +#define FT_DIR 2 /* directory */ +#define FT_BLK 3 /* "block" device - reserved */ +#define FT_CHR 4 /* "character special" device - reserved */ +#define FT_LNK 5 /* symbolic link */ +#define FT_SOCK 6 /* socket */ +#define FT_FIFO 7 /* fifo */ +#define FT_FILESYS 8 /* ADAPTEC's "FSA"(tm) filesystem */ +#define FT_DRIVE 9 /* physical disk - addressable in scsi by bus/target/lun */ +#define FT_SLICE 10 /* virtual disk - raw volume - slice */ +#define FT_PARTITION 11 /* FSA partition - carved out of a slice - building block for containers */ +#define FT_VOLUME 12 /* Container - Volume Set */ +#define FT_STRIPE 13 /* Container - Stripe Set */ +#define FT_MIRROR 14 /* Container - Mirror Set */ +#define FT_RAID5 15 /* Container - Raid 5 Set */ +#define FT_DATABASE 16 /* Storage object with "foreign" content manager */ + +/* + * Host side memory scatter gather list + * Used by the adapter for read, write, and readdirplus operations + */ + +struct sgentry { + u32 addr; /* 32-bit Base address. */ + u32 count; /* Length. */ +}; + +/* + * SGMAP + * + * This is the SGMAP structure for all commands that use + * 32-bit addressing. + * + * Note that the upper 16 bits of SgCount are used as flags. + * Only the lower 16 bits of SgCount are actually used as the + * SG element count. + */ + +struct sgmap { + u32 count; + struct sgentry sg[1]; +}; + +struct creation_info +{ + u8 buildnum; /* e.g., 588 */ + u8 usec; /* e.g., 588 */ + u8 via; /* e.g., 1 = FSU, + * 2 = API + */ + u8 year; /* e.g., 1997 = 97 */ + u32 date; /* + * unsigned Month :4; // 1 - 12 + * unsigned Day :6; // 1 - 32 + * unsigned Hour :6; // 0 - 23 + * unsigned Minute :6; // 0 - 60 + * unsigned Second :6; // 0 - 60 + */ + u64 serial; /* e.g., 0x1DEADB0BFAFAF001 */ +}; + + +/* + * Define all the constants needed for the communication interface + */ + +/* + * Define how many queue entries each queue will have and the total + * number of entries for the entire communication interface. Also define + * how many queues we support. + * + * This has to match the controller + */ + +#define NUMBER_OF_COMM_QUEUES 8 // 4 command; 4 response +#define HOST_HIGH_CMD_ENTRIES 4 +#define HOST_NORM_CMD_ENTRIES 8 +#define ADAP_HIGH_CMD_ENTRIES 4 +#define ADAP_NORM_CMD_ENTRIES 512 +#define HOST_HIGH_RESP_ENTRIES 4 +#define HOST_NORM_RESP_ENTRIES 512 +#define ADAP_HIGH_RESP_ENTRIES 4 +#define ADAP_NORM_RESP_ENTRIES 8 + +#define TOTAL_QUEUE_ENTRIES \ + (HOST_NORM_CMD_ENTRIES + HOST_HIGH_CMD_ENTRIES + ADAP_NORM_CMD_ENTRIES + ADAP_HIGH_CMD_ENTRIES + \ + HOST_NORM_RESP_ENTRIES + HOST_HIGH_RESP_ENTRIES + ADAP_NORM_RESP_ENTRIES + ADAP_HIGH_RESP_ENTRIES) + + +/* + * Set the queues on a 16 byte alignment + */ + +#define QUEUE_ALIGNMENT 16 + +/* + * The queue headers define the Communication Region queues. These + * are physically contiguous and accessible by both the adapter and the + * host. Even though all queue headers are in the same contiguous block + * they will be represented as individual units in the data structures. + */ + +struct aac_entry { + u32 size; /* Size in bytes of the Fib which this QE points to */ + u32 addr; /* Receiver addressable address of the FIB (low 32 address bits) */ +}; + +/* + * The adapter assumes the ProducerIndex and ConsumerIndex are grouped + * adjacently and in that order. + */ + +struct aac_qhdr { + u64 header_addr; /* Address to hand the adapter to access to this queue head */ + u32 *producer; /* The producer index for this queue (host address) */ + u32 *consumer; /* The consumer index for this queue (host address) */ +}; + +/* + * Define all the events which the adapter would like to notify + * the host of. + */ + +#define HostNormCmdQue 1 /* Change in host normal priority command queue */ +#define HostHighCmdQue 2 /* Change in host high priority command queue */ +#define HostNormRespQue 3 /* Change in host normal priority response queue */ +#define HostHighRespQue 4 /* Change in host high priority response queue */ +#define AdapNormRespNotFull 5 +#define AdapHighRespNotFull 6 +#define AdapNormCmdNotFull 7 +#define AdapHighCmdNotFull 8 +#define SynchCommandComplete 9 +#define AdapInternalError 0xfe /* The adapter detected an internal error shutting down */ + +/* + * Define all the events the host wishes to notify the + * adapter of. The first four values much match the Qid the + * corresponding queue. + */ + +#define AdapNormCmdQue 2 +#define AdapHighCmdQue 3 +#define AdapNormRespQue 6 +#define AdapHighRespQue 7 +#define HostShutdown 8 +#define HostPowerFail 9 +#define FatalCommError 10 +#define HostNormRespNotFull 11 +#define HostHighRespNotFull 12 +#define HostNormCmdNotFull 13 +#define HostHighCmdNotFull 14 +#define FastIo 15 +#define AdapPrintfDone 16 + +/* + * Define all the queues that the adapter and host use to communicate + * Number them to match the physical queue layout. + */ + +enum aac_queue_types { + HostNormCmdQueue = 0, /* Adapter to host normal priority command traffic */ + HostHighCmdQueue, /* Adapter to host high priority command traffic */ + AdapNormCmdQueue, /* Host to adapter normal priority command traffic */ + AdapHighCmdQueue, /* Host to adapter high priority command traffic */ + HostNormRespQueue, /* Adapter to host normal priority response traffic */ + HostHighRespQueue, /* Adapter to host high priority response traffic */ + AdapNormRespQueue, /* Host to adapter normal priority response traffic */ + AdapHighRespQueue /* Host to adapter high priority response traffic */ +}; + +/* + * Assign type values to the FSA communication data structures + */ + +#define FIB_MAGIC 0x0001 + +/* + * Define the priority levels the FSA communication routines support. + */ + +#define FsaNormal 1 +#define FsaHigh 2 + +// +// Define the FIB. The FIB is the where all the requested data and +// command information are put to the application on the FSA adapter. +// + +struct aac_fibhdr { + u32 XferState; // Current transfer state for this CCB + u16 Command; // Routing information for the destination + u8 StructType; // Type FIB + u8 Flags; // Flags for FIB + u16 Size; // Size of this FIB in bytes + u16 SenderSize; // Size of the FIB in the sender (for response sizing) + u32 SenderFibAddress; // Host defined data in the FIB + u32 ReceiverFibAddress; // Logical address of this FIB for the adapter + u32 SenderData; // Place holder for the sender to store data + union { + struct { + u32 _ReceiverTimeStart; // Timestamp for receipt of fib + u32 _ReceiverTimeDone; // Timestamp for completion of fib + } _s; + struct list_head _FibLinks; // Used to link Adapter Initiated Fibs on the host + } _u; +}; + +#define FibLinks _u._FibLinks + +#define FIB_DATA_SIZE_IN_BYTES (512 - sizeof(struct aac_fibhdr)) + + +struct hw_fib { + struct aac_fibhdr header; + u8 data[FIB_DATA_SIZE_IN_BYTES]; // Command specific data +}; + +/* + * FIB commands + */ + +#define TestCommandResponse 1 +#define TestAdapterCommand 2 +/* + * Lowlevel and comm commands + */ +#define LastTestCommand 100 +#define ReinitHostNormCommandQueue 101 +#define ReinitHostHighCommandQueue 102 +#define ReinitHostHighRespQueue 103 +#define ReinitHostNormRespQueue 104 +#define ReinitAdapNormCommandQueue 105 +#define ReinitAdapHighCommandQueue 107 +#define ReinitAdapHighRespQueue 108 +#define ReinitAdapNormRespQueue 109 +#define InterfaceShutdown 110 +#define DmaCommandFib 120 +#define StartProfile 121 +#define TermProfile 122 +#define SpeedTest 123 +#define TakeABreakPt 124 +#define RequestPerfData 125 +#define SetInterruptDefTimer 126 +#define SetInterruptDefCount 127 +#define GetInterruptDefStatus 128 +#define LastCommCommand 129 +/* + * Filesystem commands + */ +#define NuFileSystem 300 +#define UFS 301 +#define HostFileSystem 302 +#define LastFileSystemCommand 303 +/* + * Container Commands + */ +#define ContainerCommand 500 +#define ContainerCommand64 501 +/* + * Cluster Commands + */ +#define ClusterCommand 550 +/* + * Scsi Port commands (scsi passthrough) + */ +#define ScsiPortCommand 600 +/* + * Misc house keeping and generic adapter initiated commands + */ +#define AifRequest 700 +#define CheckRevision 701 +#define FsaHostShutdown 702 +#define RequestAdapterInfo 703 +#define IsAdapterPaused 704 +#define SendHostTime 705 +#define LastMiscCommand 706 + +// +// Commands that will target the failover level on the FSA adapter +// + +enum fib_xfer_state { + HostOwned = (1<<0), + AdapterOwned = (1<<1), + FibInitialized = (1<<2), + FibEmpty = (1<<3), + AllocatedFromPool = (1<<4), + SentFromHost = (1<<5), + SentFromAdapter = (1<<6), + ResponseExpected = (1<<7), + NoResponseExpected = (1<<8), + AdapterProcessed = (1<<9), + HostProcessed = (1<<10), + HighPriority = (1<<11), + NormalPriority = (1<<12), + Async = (1<<13), + AsyncIo = (1<<13), // rpbfix: remove with new regime + PageFileIo = (1<<14), // rpbfix: remove with new regime + ShutdownRequest = (1<<15), + LazyWrite = (1<<16), // rpbfix: remove with new regime + AdapterMicroFib = (1<<17), + BIOSFibPath = (1<<18), + FastResponseCapable = (1<<19), + ApiFib = (1<<20) // Its an API Fib. +}; + +/* + * The following defines needs to be updated any time there is an + * incompatible change made to the aac_init structure. + */ + +#define ADAPTER_INIT_STRUCT_REVISION 3 + +struct aac_init +{ + u32 InitStructRevision; + u32 MiniPortRevision; + u32 fsrev; + void * CommHeaderAddress; + void * FastIoCommAreaAddress; + void * AdapterFibsPhysicalAddress; + void * AdapterFibsVirtualAddress; + u32 AdapterFibsSize; + u32 AdapterFibAlign; + void * printfbuf; + u32 printfbufsiz; + u32 HostPhysMemPages; // number of 4k pages of host physical memory + u32 HostElapsedSeconds; // number of seconds since 1970. +}; + +enum aac_log_level { + LOG_INIT = 10, + LOG_INFORMATIONAL = 20, + LOG_WARNING = 30, + LOG_LOW_ERROR = 40, + LOG_MEDIUM_ERROR = 50, + LOG_HIGH_ERROR = 60, + LOG_PANIC = 70, + LOG_DEBUG = 80, + LOG_WINDBG_PRINT = 90 +}; + +#define FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT 0x030b +#define FSAFS_NTC_FIB_CONTEXT 0x030c + +struct aac_dev; + +struct adapter_ops +{ + void (*adapter_interrupt)(struct aac_dev *dev); + void (*adapter_notify)(struct aac_dev *dev, u32 event); + void (*adapter_enable_int)(struct aac_dev *dev, u32 event); + void (*adapter_disable_int)(struct aac_dev *dev, u32 event); +}; + +/* + * Define which interrupt handler needs to be installed + */ + +struct aac_driver_ident +{ + u16 vendor; + u16 device; + u16 subsystem_vendor; + u16 subsystem_device; + int (*init)(struct aac_dev *dev, unsigned long num); + char * name; + char * vname; + char * model; +}; + +/* + * The adapter interface specs all queues to be located in the same + * physically contigous block. The host structure that defines the + * commuication queues will assume they are each a seperate physically + * contigous memory region that will support them all being one big + * contigous block. + * There is a command and response queue for each level and direction of + * commuication. These regions are accessed by both the host and adapter. + */ + +struct aac_queue { + u64 logical; /* This is the address we give the adapter */ + struct aac_entry *base; /* This is the system virtual address */ + struct aac_qhdr headers; /* A pointer to the producer and consumer queue headers for this queue */ + u32 entries; /* Number of queue entries on this queue */ + wait_queue_head_t qfull; /* Event to wait on if the queue is full */ + wait_queue_head_t cmdready; /* Indicates there is a Command ready from the adapter on this queue. */ + /* This is only valid for adapter to host command queues. */ + spinlock_t *lock; /* Spinlock for this queue must take this lock before accessing the lock */ + spinlock_t lockdata; /* Actual lock (used only on one side of the lock) */ + unsigned long SavedIrql; /* Previous IRQL when the spin lock is taken */ + u32 padding; /* Padding - FIXME - can remove I believe */ + struct list_head cmdq; /* A queue of FIBs which need to be prcessed by the FS thread. This is */ + /* only valid for command queues which receive entries from the adapter. */ + struct list_head pendingq; /* A queue of outstanding fib's to the adapter. */ + unsigned long numpending; /* Number of entries on outstanding queue. */ + struct aac_dev * dev; /* Back pointer to adapter structure */ +}; + +/* + * Message queues. The order here is important, see also the + * queue type ordering + */ + +struct aac_queue_block +{ + struct aac_queue queue[8]; +}; + +/* + * SaP1 Message Unit Registers + */ + +struct sa_drawbridge_CSR { + // Offset | Name + u32 reserved[10]; // 00h-27h | Reserved + u8 LUT_Offset; // 28h | Looup Table Offset + u8 reserved1[3]; // 29h-2bh | Reserved + u32 LUT_Data; // 2ch | Looup Table Data + u32 reserved2[26]; // 30h-97h | Reserved + u16 PRICLEARIRQ; // 98h | Primary Clear Irq + u16 SECCLEARIRQ; // 9ah | Secondary Clear Irq + u16 PRISETIRQ; // 9ch | Primary Set Irq + u16 SECSETIRQ; // 9eh | Secondary Set Irq + u16 PRICLEARIRQMASK; // a0h | Primary Clear Irq Mask + u16 SECCLEARIRQMASK; // a2h | Secondary Clear Irq Mask + u16 PRISETIRQMASK; // a4h | Primary Set Irq Mask + u16 SECSETIRQMASK; // a6h | Secondary Set Irq Mask + u32 MAILBOX0; // a8h | Scratchpad 0 + u32 MAILBOX1; // ach | Scratchpad 1 + u32 MAILBOX2; // b0h | Scratchpad 2 + u32 MAILBOX3; // b4h | Scratchpad 3 + u32 MAILBOX4; // b8h | Scratchpad 4 + u32 MAILBOX5; // bch | Scratchpad 5 + u32 MAILBOX6; // c0h | Scratchpad 6 + u32 MAILBOX7; // c4h | Scratchpad 7 + + u32 ROM_Setup_Data; // c8h | Rom Setup and Data + u32 ROM_Control_Addr; // cch | Rom Control and Address + + u32 reserved3[12]; // d0h-ffh | reserved + u32 LUT[64]; // 100h-1ffh| Lookup Table Entries + + // + // TO DO + // need to add DMA, I2O, UART, etc registers form 80h to 364h + // + +}; + +#define Mailbox0 SaDbCSR.MAILBOX0 +#define Mailbox1 SaDbCSR.MAILBOX1 +#define Mailbox2 SaDbCSR.MAILBOX2 +#define Mailbox3 SaDbCSR.MAILBOX3 +#define Mailbox4 SaDbCSR.MAILBOX4 +#define Mailbox5 SaDbCSR.MAILBOX5 +#define Mailbox7 SaDbCSR.MAILBOX7 + +#define DoorbellReg_p SaDbCSR.PRISETIRQ +#define DoorbellReg_s SaDbCSR.SECSETIRQ +#define DoorbellClrReg_p SaDbCSR.PRICLEARIRQ + + +#define DOORBELL_0 0x00000001 +#define DOORBELL_1 0x00000002 +#define DOORBELL_2 0x00000004 +#define DOORBELL_3 0x00000008 +#define DOORBELL_4 0x00000010 +#define DOORBELL_5 0x00000020 +#define DOORBELL_6 0x00000040 + + +#define PrintfReady DOORBELL_5 +#define PrintfDone DOORBELL_5 + +struct sa_registers { + struct sa_drawbridge_CSR SaDbCSR; /* 98h - c4h */ +}; + + +#define Sa_MINIPORT_REVISION 1 + +#define sa_readw(AEP, CSR) readl(&((AEP)->regs.sa->CSR)) +#define sa_readl(AEP, CSR) readl(&((AEP)->regs.sa->CSR)) +#define sa_writew(AEP, CSR, value) writew(value, &((AEP)->regs.sa->CSR)) +#define sa_writel(AEP, CSR, value) writel(value, &((AEP)->regs.sa->CSR)) + +/* + * Rx Message Unit Registers + */ + +struct rx_mu_registers { + // Local | PCI* | Name + // | | + u32 ARSR; // 1300h | 00h | APIC Register Select Register + u32 reserved0; // 1304h | 04h | Reserved + u32 AWR; // 1308h | 08h | APIC Window Register + u32 reserved1; // 130Ch | 0Ch | Reserved + u32 IMRx[2]; // 1310h | 10h | Inbound Message Registers + u32 OMRx[2]; // 1318h | 18h | Outbound Message Registers + u32 IDR; // 1320h | 20h | Inbound Doorbell Register + u32 IISR; // 1324h | 24h | Inbound Interrupt Status Register + u32 IIMR; // 1328h | 28h | Inbound Interrupt Mask Register + u32 ODR; // 132Ch | 2Ch | Outbound Doorbell Register + u32 OISR; // 1330h | 30h | Outbound Interrupt Status Register + u32 OIMR; // 1334h | 34h | Outbound Interrupt Mask Register + // * Must access through ATU Inbound Translation Window +}; + +struct rx_inbound { + u32 Mailbox[8]; +}; + +#define InboundMailbox0 IndexRegs.Mailbox[0] +#define InboundMailbox1 IndexRegs.Mailbox[1] +#define InboundMailbox2 IndexRegs.Mailbox[2] +#define InboundMailbox3 IndexRegs.Mailbox[3] +#define InboundMailbox4 IndexRegs.Mailbox[4] + +#define INBOUNDDOORBELL_0 0x00000001 +#define INBOUNDDOORBELL_1 0x00000002 +#define INBOUNDDOORBELL_2 0x00000004 +#define INBOUNDDOORBELL_3 0x00000008 +#define INBOUNDDOORBELL_4 0x00000010 +#define INBOUNDDOORBELL_5 0x00000020 +#define INBOUNDDOORBELL_6 0x00000040 + +#define OUTBOUNDDOORBELL_0 0x00000001 +#define OUTBOUNDDOORBELL_1 0x00000002 +#define OUTBOUNDDOORBELL_2 0x00000004 +#define OUTBOUNDDOORBELL_3 0x00000008 +#define OUTBOUNDDOORBELL_4 0x00000010 + +#define InboundDoorbellReg MUnit.IDR +#define OutboundDoorbellReg MUnit.ODR + +struct rx_registers { + struct rx_mu_registers MUnit; // 1300h - 1334h + u32 reserved1[6]; // 1338h - 134ch + struct rx_inbound IndexRegs; +}; + +#define rx_readb(AEP, CSR) readb(&((AEP)->regs.rx->CSR)) +#define rx_readl(AEP, CSR) readl(&((AEP)->regs.rx->CSR)) +#define rx_writeb(AEP, CSR, value) writeb(value, &((AEP)->regs.rx->CSR)) +#define rx_writel(AEP, CSR, value) writel(value, &((AEP)->regs.rx->CSR)) + +struct fib; + +typedef void (*fib_callback)(void *ctxt, struct fib *fibctx); + +struct aac_fib_context { + s16 type; // used for verification of structure + s16 size; + u32 jiffies; // used for cleanup + struct list_head next; // used to link context's into a linked list + struct semaphore wait_sem; // this is used to wait for the next fib to arrive. + int wait; // Set to true when thread is in WaitForSingleObject + unsigned long count; // total number of FIBs on FibList + struct list_head fibs; +}; + +#define MAXIMUM_NUM_CONTAINERS 64 // 4 Luns * 16 Targets +#define MAXIMUM_NUM_ADAPTERS 8 + +struct fsa_scsi_hba { + unsigned long size[MAXIMUM_NUM_CONTAINERS]; + unsigned long type[MAXIMUM_NUM_CONTAINERS]; + unsigned char valid[MAXIMUM_NUM_CONTAINERS]; + unsigned char ro[MAXIMUM_NUM_CONTAINERS]; + unsigned char locked[MAXIMUM_NUM_CONTAINERS]; + unsigned char deleted[MAXIMUM_NUM_CONTAINERS]; + long devno[MAXIMUM_NUM_CONTAINERS]; +}; + +struct fib { + void *next; /* this is used by the allocator */ + s16 type; + s16 size; + /* + * The Adapter that this I/O is destined for. + */ + struct aac_dev *dev; + u64 logicaladdr; /* 64 bit */ + /* + * This is the event the sendfib routine will wait on if the + * caller did not pass one and this is synch io. + */ + struct semaphore event_wait; + spinlock_t event_lock; + + unsigned long done; /* gets set to 1 when fib is complete */ + fib_callback callback; + void *callback_data; + unsigned long flags; + /* + * The following is used to put this fib context onto the + * Outstanding I/O queue. + */ + struct list_head queue; + + void *data; + struct hw_fib *fib; /* Actual shared object */ +}; + +struct aac_dev +{ + struct aac_dev *next; + const char *name; + int id; + + u16 irq_mask; + /* + * Map for 128 fib objects (64k) + */ + dma_addr_t hw_fib_pa; + struct hw_fib *hw_fib_va; + /* + * Fib Headers + */ + struct fib fibs[AAC_NUM_FIB]; + struct fib *free_fib; + struct fib *timeout_fib; + spinlock_t fib_lock; + + struct aac_queue_block *queues; + /* + * The user API will use an IOCTL to register itself to receive + * FIBs from the adapter. The following list is used to keep + * track of all the threads that have requested these FIBs. The + * mutex is used to synchronize access to all data associated + * with the adapter fibs. + */ + struct list_head fib_list; + + struct adapter_ops a_ops; + unsigned long fsrev; /* Main driver's revision number */ + + struct aac_init *init; /* Holds initialization info to communicate with adapter */ + void * init_pa; /* Holds physical address of the init struct */ + + struct pci_dev *pdev; /* Our PCI interface */ + void * printfbuf; /* pointer to buffer used for printf's from the adapter */ + void * comm_addr; /* Base address of Comm area */ + dma_addr_t comm_phys; /* Physical Address of Comm area */ + size_t comm_size; + + struct Scsi_Host *scsi_host_ptr; + struct fsa_scsi_hba fsa_dev; + int thread_pid; + int cardtype; + + /* + * The following is the device specific extension. + */ + union + { + struct sa_registers *sa; + struct rx_registers *rx; + } regs; + /* + * The following is the number of the individual adapter + */ + long devnum; + int aif_thread; + struct completion aif_completion; +}; + +#define AllocateAndMapFibSpace(dev, MapFibContext) \ + dev->a_ops.AllocateAndMapFibSpace(dev, MapFibContext) + +#define UnmapAndFreeFibSpace(dev, MapFibContext) \ + dev->a_ops.UnmapAndFreeFibSpace(dev, MapFibContext) + +#define aac_adapter_interrupt(dev) \ + dev->a_ops.adapter_interrupt(dev) + +#define aac_adapter_notify(dev, event) \ + dev->a_ops.adapter_notify(dev, event) + +#define aac_adapter_enable_int(dev, event) \ + dev->a_ops.adapter_enable_int(dev, event) + +#define aac_adapter_disable_int(dev, event) \ + dev->a_ops.adapter_disable_int(dev, event) + + + +#define FIB_CONTEXT_FLAG_TIMED_OUT (0x00000001) + +/* + * Define the command values + */ + +#define Null 0 +#define GetAttributes 1 +#define SetAttributes 2 +#define Lookup 3 +#define ReadLink 4 +#define Read 5 +#define Write 6 +#define Create 7 +#define MakeDirectory 8 +#define SymbolicLink 9 +#define MakeNode 10 +#define Removex 11 +#define RemoveDirectoryx 12 +#define Rename 13 +#define Link 14 +#define ReadDirectory 15 +#define ReadDirectoryPlus 16 +#define FileSystemStatus 17 +#define FileSystemInfo 18 +#define PathConfigure 19 +#define Commit 20 +#define Mount 21 +#define UnMount 22 +#define Newfs 23 +#define FsCheck 24 +#define FsSync 25 +#define SimReadWrite 26 +#define SetFileSystemStatus 27 +#define BlockRead 28 +#define BlockWrite 29 +#define NvramIoctl 30 +#define FsSyncWait 31 +#define ClearArchiveBit 32 +#define SetAcl 33 +#define GetAcl 34 +#define AssignAcl 35 +#define FaultInsertion 36 /* Fault Insertion Command */ +#define CrazyCache 37 /* Crazycache */ + +#define MAX_FSACOMMAND_NUM 38 + + +/* + * Define the status returns. These are very unixlike although + * most are not in fact used + */ + +#define ST_OK 0 +#define ST_PERM 1 +#define ST_NOENT 2 +#define ST_IO 5 +#define ST_NXIO 6 +#define ST_E2BIG 7 +#define ST_ACCES 13 +#define ST_EXIST 17 +#define ST_XDEV 18 +#define ST_NODEV 19 +#define ST_NOTDIR 20 +#define ST_ISDIR 21 +#define ST_INVAL 22 +#define ST_FBIG 27 +#define ST_NOSPC 28 +#define ST_ROFS 30 +#define ST_MLINK 31 +#define ST_WOULDBLOCK 35 +#define ST_NAMETOOLONG 63 +#define ST_NOTEMPTY 66 +#define ST_DQUOT 69 +#define ST_STALE 70 +#define ST_REMOTE 71 +#define ST_BADHANDLE 10001 +#define ST_NOT_SYNC 10002 +#define ST_BAD_COOKIE 10003 +#define ST_NOTSUPP 10004 +#define ST_TOOSMALL 10005 +#define ST_SERVERFAULT 10006 +#define ST_BADTYPE 10007 +#define ST_JUKEBOX 10008 +#define ST_NOTMOUNTED 10009 +#define ST_MAINTMODE 10010 +#define ST_STALEACL 10011 + +/* + * On writes how does the client want the data written. + */ + +#define CACHE_CSTABLE 1 +#define CACHE_UNSTABLE 2 + +/* + * Lets the client know at which level the data was commited on + * a write request + */ + +#define CMFILE_SYNCH_NVRAM 1 +#define CMDATA_SYNCH_NVRAM 2 +#define CMFILE_SYNCH 3 +#define CMDATA_SYNCH 4 +#define CMUNSTABLE 5 + +struct aac_read +{ + u32 command; + u32 cid; + u32 block; + u32 count; + struct sgmap sg; // Must be last in struct because it is variable +}; + +struct aac_read_reply +{ + u32 status; + u32 count; +}; + +struct aac_write +{ + u32 command; + u32 cid; + u32 block; + u32 count; + u32 stable; + struct sgmap sg; // Must be last in struct because it is variable +}; + +struct aac_write_reply +{ + u32 status; + u32 count; + u32 committed; +}; + + +/* + * Object-Server / Volume-Manager Dispatch Classes + */ + +#define VM_Null 0 +#define VM_NameServe 1 +#define VM_ContainerConfig 2 +#define VM_Ioctl 3 +#define VM_FilesystemIoctl 4 +#define VM_CloseAll 5 +#define VM_CtBlockRead 6 +#define VM_CtBlockWrite 7 +#define VM_SliceBlockRead 8 /* raw access to configured "storage objects" */ +#define VM_SliceBlockWrite 9 +#define VM_DriveBlockRead 10 /* raw access to physical devices */ +#define VM_DriveBlockWrite 11 +#define VM_EnclosureMgt 12 /* enclosure management */ +#define VM_Unused 13 /* used to be diskset management */ +#define VM_CtBlockVerify 14 +#define VM_CtPerf 15 /* performance test */ +#define VM_CtBlockRead64 16 +#define VM_CtBlockWrite64 17 +#define VM_CtBlockVerify64 18 + +#define MAX_VMCOMMAND_NUM 19 /* used for sizing stats array - leave last */ + +/* + * Descriptive information (eg, vital stats) + * that a content manager might report. The + * FileArray filesystem component is one example + * of a content manager. Raw mode might be + * another. + */ + +struct aac_fsinfo { + u32 fsTotalSize; /* Consumed by fs, incl. metadata */ + u32 fsBlockSize; + u32 fsFragSize; + u32 fsMaxExtendSize; + u32 fsSpaceUnits; + u32 fsMaxNumFiles; + u32 fsNumFreeFiles; + u32 fsInodeDensity; +}; /* valid iff ObjType == FT_FILESYS && !(ContentState & FSCS_NOTCLEAN) */ + +union aac_contentinfo { + struct aac_fsinfo filesys; /* valid iff ObjType == FT_FILESYS && !(ContentState & FSCS_NOTCLEAN) */ +}; + +/* + * Query for "mountable" objects, ie, objects that are typically + * associated with a drive letter on the client (host) side. + */ + +struct aac_mntent { + u32 oid; + char name[16]; // if applicable + struct creation_info create_info; // if applicable + u32 capacity; + u32 vol; // substrate structure + u32 obj; // FT_FILESYS, FT_DATABASE, etc. + u32 state; // unready for mounting, readonly, etc. + union aac_contentinfo fileinfo; // Info specific to content manager (eg, filesystem) + u32 altoid; // != oid <==> snapshot or broken mirror exists +}; + +#define FSCS_READONLY 0x0002 /* possible result of broken mirror */ + +struct aac_query_mount { + u32 command; + u32 type; + u32 count; +}; + +struct aac_mount { + u32 status; + u32 type; /* should be same as that requested */ + u32 count; + struct aac_mntent mnt[1]; +}; + +/* + * The following command is sent to shut down each container. + */ + +struct aac_close { + u32 command; + u32 cid; +}; + +struct aac_query_disk +{ + s32 cnum; + s32 bus; + s32 target; + s32 lun; + u32 valid; + u32 locked; + u32 deleted; + s32 instance; + s8 name[10]; + u32 unmapped; +}; + +struct aac_delete_disk { + u32 disknum; + u32 cnum; +}; + +struct fib_ioctl +{ + char *fibctx; + int wait; + char *fib; +}; + +/* + * Ugly - non Linux like ioctl coding for back compat. + */ + +#define CTL_CODE(function, method) ( \ + (4<< 16) | ((function) << 2) | (method) \ +) + +/* + * Define the method codes for how buffers are passed for I/O and FS + * controls + */ + +#define METHOD_BUFFERED 0 +#define METHOD_NEITHER 3 + +/* + * Filesystem ioctls + */ + +#define FSACTL_SENDFIB CTL_CODE(2050, METHOD_BUFFERED) +#define FSACTL_DELETE_DISK 0x163 +#define FSACTL_QUERY_DISK 0x173 +#define FSACTL_OPEN_GET_ADAPTER_FIB CTL_CODE(2100, METHOD_BUFFERED) +#define FSACTL_GET_NEXT_ADAPTER_FIB CTL_CODE(2101, METHOD_BUFFERED) +#define FSACTL_CLOSE_GET_ADAPTER_FIB CTL_CODE(2102, METHOD_BUFFERED) +#define FSACTL_FORCE_DELETE_DISK CTL_CODE(2120, METHOD_NEITHER) + +struct aac_common +{ + /* + * If this value is set to 1 then interrupt moderation will occur + * in the base commuication support. + */ + unsigned long irq_mod; + int peak_fibs; + int zero_fibs; + unsigned long fib_timeouts; + /* + * Statistical counters in debug mode + */ +#ifdef DBG + unsigned long FibsSent; + unsigned long FibRecved; + unsigned long NoResponseSent; + unsigned long NoResponseRecved; + unsigned long AsyncSent; + unsigned long AsyncRecved; + unsigned long NormalSent; + unsigned long NormalRecved; +#endif +}; + +extern struct aac_common aac_config; + + +/* + * The following macro is used when sending and receiving FIBs. It is + * only used for debugging. + */ + +#if DBG +#define FIB_COUNTER_INCREMENT(counter) (counter)++ +#else +#define FIB_COUNTER_INCREMENT(counter) +#endif + +/* + * Adapter direct commands + */ + +#define BREAKPOINT_REQUEST 0x00000004 +#define INIT_STRUCT_BASE_ADDRESS 0x00000005 +#define SEND_SYNCHRONOUS_FIB 0x0000000c + +/* + * Adapter Status Register + * + * Phase Staus mailbox is 32bits: + * <31:16> = Phase Status + * <15:0> = Phase + * + * The adapter reports is present state through the phase. Only + * a single phase should be ever be set. Each phase can have multiple + * phase status bits to provide more detailed information about the + * state of the board. Care should be taken to ensure that any phase + * status bits that are set when changing the phase are also valid + * for the new phase or be cleared out. Adapter software (monitor, + * iflash, kernel) is responsible for properly maintining the phase + * status mailbox when it is running. + * + * MONKER_API Phases + * + * Phases are bit oriented. It is NOT valid to have multiple bits set + */ + +#define SELF_TEST_FAILED 0x00000004 +#define KERNEL_UP_AND_RUNNING 0x00000080 +#define KERNEL_PANIC 0x00000100 + +/* + * Doorbell bit defines + */ + +#define DoorBellPrintfDone (1<<5) // Host -> Adapter +#define DoorBellAdapterNormCmdReady (1<<1) // Adapter -> Host +#define DoorBellAdapterNormRespReady (1<<2) // Adapter -> Host +#define DoorBellAdapterNormCmdNotFull (1<<3) // Adapter -> Host +#define DoorBellAdapterNormRespNotFull (1<<4) // Adapter -> Host +#define DoorBellPrintfReady (1<<5) // Adapter -> Host + +/* + * For FIB communication, we need all of the following things + * to send back to the user. + */ + +#define AifCmdEventNotify 1 /* Notify of event */ +#define AifCmdJobProgress 2 /* Progress report */ +#define AifCmdAPIReport 3 /* Report from other user of API */ +#define AifCmdDriverNotify 4 /* Notify host driver of event */ +#define AifReqJobList 100 /* Gets back complete job list */ +#define AifReqJobsForCtr 101 /* Gets back jobs for specific container */ +#define AifReqJobsForScsi 102 /* Gets back jobs for specific SCSI device */ +#define AifReqJobReport 103 /* Gets back a specific job report or list of them */ +#define AifReqTerminateJob 104 /* Terminates job */ +#define AifReqSuspendJob 105 /* Suspends a job */ +#define AifReqResumeJob 106 /* Resumes a job */ +#define AifReqSendAPIReport 107 /* API generic report requests */ +#define AifReqAPIJobStart 108 /* Start a job from the API */ +#define AifReqAPIJobUpdate 109 /* Update a job report from the API */ +#define AifReqAPIJobFinish 110 /* Finish a job from the API */ + +/* + * Adapter Initiated FIB command structures. Start with the adapter + * initiated FIBs that really come from the adapter, and get responded + * to by the host. + */ + +struct aac_aifcmd { + u32 command; /* Tell host what type of notify this is */ + u32 seqnum; /* To allow ordering of reports (if necessary) */ + u8 data[1]; /* Undefined length (from kernel viewpoint) */ +}; + +/* + * Adapter Information Block + * + * This is returned by the RequestAdapterInfo block + */ + +struct aac_adapter_info +{ + u32 platform; + u32 cpu; + u32 subcpu; + u32 clock; + u32 execmem; + u32 buffermem; + u32 totalmem; + u32 kernelrev; + u32 kernelbuild; + u32 monitorrev; + u32 monitorbuild; + u32 hwrev; + u32 hwbuild; + u32 biosrev; + u32 biosbuild; + u32 clustering; + u32 clustermask; + u64 serial; + u32 battery; + u32 options; + u32 OEM; +}; + +const char *aac_driverinfo(struct Scsi_Host *); +struct fib *fib_alloc(struct aac_dev *dev); +int fib_setup(struct aac_dev *dev); +void fib_map_free(struct aac_dev *dev); +void fib_free(struct fib * context); +void fib_init(struct fib * context); +void fib_dealloc(struct fib * context); +void aac_printf(struct aac_dev *dev, u32 val); +int fib_send(u16 command, struct fib * context, unsigned long size, int priority, int wait, int reply, fib_callback callback, void *ctxt); +int aac_consumer_get(struct aac_dev * dev, struct aac_queue * q, struct aac_entry **entry); +int aac_consumer_avail(struct aac_dev * dev, struct aac_queue * q); +void aac_consumer_free(struct aac_dev * dev, struct aac_queue * q, u32 qnum); +int fib_complete(struct fib * context); +#define fib_data(fibctx) ((void *)(fibctx)->fib->data) +int aac_detach(struct aac_dev *dev); +struct aac_dev *aac_init_adapter(struct aac_dev *dev); +int aac_get_containers(struct aac_dev *dev); +int aac_scsi_cmd(Scsi_Cmnd *scsi_cmnd_ptr); +int aac_dev_ioctl(struct aac_dev *dev, int cmd, void *arg); +int aac_do_ioctl(struct aac_dev * dev, int cmd, void *arg); +int aac_rx_init(struct aac_dev *dev, unsigned long devNumber); +int aac_sa_init(struct aac_dev *dev, unsigned long devNumber); +unsigned int aac_response_normal(struct aac_queue * q); +unsigned int aac_command_normal(struct aac_queue * q); +int aac_command_thread(struct aac_dev * dev); +int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context *fibctx); +int fib_adapter_complete(struct fib * fibptr, unsigned short size); diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/aacraid/linit.c linux.gamma/drivers/scsi/aacraid/linit.c --- linux.15p3/drivers/scsi/aacraid/linit.c Thu Jan 1 01:00:00 1970 +++ linux.gamma/drivers/scsi/aacraid/linit.c Fri Nov 30 13:56:49 2001 @@ -0,0 +1,677 @@ +/* + * Adaptec AAC series RAID controller driver + * (c) Copyright 2001 Red Hat Inc. + * + * based on the old aacraid driver that is.. + * Adaptec aacraid device driver for Linux. + * + * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Module Name: + * linit.c + * + * Abstract: Linux Driver entry module for Adaptec RAID Array Controller + * + * Provides the following driver entry points: + * aac_detect() + * aac_release() + * aac_queuecommand() + * aac_resetcommand() + * aac_biosparm() + * + */ + +#define AAC_DRIVER_VERSION "0.9.6ac1" +#define AAC_DRIVER_BUILD_DATE __DATE__ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "scsi.h" +#include "hosts.h" + +#include "aacraid.h" +#include "sd.h" + +#define AAC_DRIVERNAME "aacraid" + +MODULE_AUTHOR("Red Hat Inc and Adaptec OEM RAID Solutions"); +MODULE_DESCRIPTION("Supports Dell PERC2, 2/Si, 3/Si, 3/Di, and HP NetRAID-4M devices. http://domsch.com/linux/"); +MODULE_LICENSE("GPL"); + +struct aac_dev *aac_devices[MAXIMUM_NUM_ADAPTERS]; + +static unsigned aac_count = 0; +static int aac_cfg_major = -1; +static int single_command_done = 0; + +/* + * Because of the way Linux names scsi devices, the order in this table has + * become important. Check for on-board Raid first, add-in cards second. + */ + +/* FIXME static */struct aac_driver_ident aac_drivers[] = { + { 0x0000, 0x0000, 0x0000, 0x0000, aac_rx_init, "percraid", "DELL ", "PERCRAID " }, /* Dell unknown - uses perc_pciid */ + { 0x0000, 0x0000, 0x0000, 0x0000, aac_rx_init, "aacraid", "ADAPTEC ", "AACRAID " }, /* unknown - uses rx_pciid */ + { 0x0000, 0x0000, 0x0000, 0x0000, aac_sa_init, "aacraid", "ADAPTEC ", "AACRAID " }, /* unknown - uses sa_pciid */ + { 0x1028, 0x0001, 0x1028, 0x0001, aac_rx_init, "percraid", "DELL ", "PERCRAID " }, /* PERC 2/Si */ + { 0x1028, 0x0002, 0x1028, 0x0002, aac_rx_init, "percraid", "DELL ", "PERCRAID " }, /* PERC 3/Di */ + { 0x1028, 0x0003, 0x1028, 0x0003, aac_rx_init, "percraid", "DELL ", "PERCRAID " }, /* PERC 3/Si */ + { 0x1028, 0x0004, 0x1028, 0x00d0, aac_rx_init, "percraid", "DELL ", "PERCRAID " }, /* PERC 3/Si */ + { 0x1028, 0x0002, 0x1028, 0x00d1, aac_rx_init, "percraid", "DELL ", "PERCRAID " }, /* PERC 3/Di */ + { 0x1028, 0x0002, 0x1028, 0x00d9, aac_rx_init, "percraid", "DELL ", "PERCRAID " }, /* PERC 3/Di */ + { 0x1028, 0x000a, 0x1028, 0x0106, aac_rx_init, "percraid", "DELL ", "PERCRAID " }, /* PERC 3/Di */ + { 0x1028, 0x000a, 0x1028, 0x011b, aac_rx_init, "percraid", "DELL ", "PERCRAID " }, /* PERC 3/Di */ + { 0x1028, 0x000a, 0x1028, 0x0121, aac_rx_init, "percraid", "DELL ", "PERCRAID " }, /* PERC 3/Di */ + { 0x1011, 0x0046, 0x9005, 0x1364, aac_sa_init, "percraid", "DELL ", "PERCRAID " }, /* Dell PERC2 "Quad Channel" */ + { 0x1011, 0x0046, 0x9005, 0x0365, aac_sa_init, "aacraid", "ADAPTEC ", "Adaptec 5400S " }, /* Adaptec 5400S */ + { 0x1011, 0x0046, 0x103c, 0x10c2, aac_sa_init, "hpnraid", "HP ", "NetRAID-4M " } /* HP NetRAID-4M */ +}; + +#define NUM_AACTYPES (sizeof(aac_drivers) / sizeof(struct aac_driver_ident)) +static int num_aacdrivers = NUM_AACTYPES; + +static int aac_cfg_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg); +static int aac_cfg_open(struct inode * inode, struct file * file); +static int aac_cfg_release(struct inode * inode,struct file * file); + +static struct file_operations aac_cfg_fops = { + owner: THIS_MODULE, + ioctl: aac_cfg_ioctl, + open: aac_cfg_open, + release: aac_cfg_release +}; + +static int aac_detect(Scsi_Host_Template *); +static int aac_release(struct Scsi_Host *); +static int aac_queuecommand(Scsi_Cmnd *, void (*CompletionRoutine)(Scsi_Cmnd *)); +static int aac_command(Scsi_Cmnd *); +static int aac_abortcommand(Scsi_Cmnd *scsi_cmnd_ptr); +static int aac_resetcommand(Scsi_Cmnd *, unsigned int); +static int aac_biosparm(Scsi_Disk *, kdev_t, int *); +static int aac_procinfo(char *, char **, off_t, int, int, int); +static int aac_ioctl(Scsi_Device *, int, void *); + +static void aac_queuedepth(struct Scsi_Host *, Scsi_Device *); + +/** + * aac_detect - Probe for aacraid cards + * @template: SCSI driver template + * + * Probe for AAC Host Adapters initialize, register, and report the + * configuration of each AAC Host Adapter found. + * Returns the number of adapters successfully initialized and + * registered. + * Initializes all data necessary for this particular SCSI driver. + * Notes: + * The detect routine must not call any of the mid level functions + * to queue commands because things are not guaranteed to be set + * up yet. The detect routine can send commands to the host adapter + * as long as the program control will not be passed to scsi.c in + * the processing of the command. Note especially that + * scsi_malloc/scsi_free must not be called. + * + */ + +static int aac_detect(Scsi_Host_Template *template) +{ + int index; + int container; + u16 vendor_id, device_id, sub_vendor_id = 0, sub_system_id = 0; + struct Scsi_Host *host_ptr; + struct pci_dev *dev = NULL; + struct aac_dev *aac; + struct fsa_scsi_hba *fsa_dev_ptr; + char *name = NULL; + + printk(KERN_INFO "Red Hat/Adaptec aacraid driver, %s\n", AAC_DRIVER_BUILD_DATE); + + /* setting up the proc directory structure */ + template->proc_name = "aacraid"; + + for( index = 0; index != num_aacdrivers; index++ ) + { + device_id = aac_drivers[index].device; + vendor_id = aac_drivers[index].vendor; + name = aac_drivers[index].name; + dprintk((KERN_DEBUG "Checking %s %x/%x/%x/%x.\n", + name, vendor_id, device_id, + aac_drivers[index].subsystem_vendor, + aac_drivers[index].subsystem_device)); + + /* If vendor and device ID are 0, this is an unused entry, so skip! */ + if ( vendor_id == 0 && device_id == 0 ) + continue; + dev = NULL; + while((dev = pci_find_device(vendor_id, device_id, dev))) + { + if (pci_enable_device(dev)) + continue; + pci_set_master(dev); + pci_set_dma_mask(dev, 0xFFFFFFFFULL); + + if((dev->subsystem_vendor != aac_drivers[index].subsystem_vendor) || + (dev->subsystem_device != aac_drivers[index].subsystem_device)) + continue; + + dprintk((KERN_DEBUG "%s device detected.\n", name)); + dprintk((KERN_DEBUG "%x/%x/%x/%x.\n", vendor_id, device_id, sub_vendor_id, sub_system_id)); + /* Increment the host adapter count */ + aac_count++; + /* + * scsi_register() allocates memory for a Scsi_Hosts structure and + * links it into the linked list of host adapters. This linked list + * contains the data for all possible scsi hosts. + * This is similar to the Scsi_Host_Template, except that we have + * one entry for each actual physical host adapter on the system, + * stored as a linked list. If there are two AAC boards, then we + * will need to make two Scsi_Host entries, but there will be only + * one Scsi_Host_Template entry. The second argument to scsi_register() + * specifies the size of the extra memory we want to hold any device + * specific information. + */ + host_ptr = scsi_register( template, sizeof(struct aac_dev) ); + /* + * These three parameters can be used to allow for wide SCSI + * and for host adapters that support multiple buses. + */ + host_ptr->max_id = 17; + host_ptr->max_lun = 8; + host_ptr->max_channel = 1; + host_ptr->irq = dev->irq; /* Adapter IRQ number */ + /* host_ptr->base = ( char * )(dev->resource[0].start & ~0xff); */ + host_ptr->base = dev->resource[0].start; + scsi_set_pci_device(host_ptr, dev); + dprintk((KERN_DEBUG "Device base address = 0x%lx [0x%lx].\n", host_ptr->base, dev->resource[0].start)); + dprintk((KERN_DEBUG "Device irq = 0x%x.\n", dev->irq)); + /* + * The unique_id field is a unique identifier that must + * be assigned so that we have some way of identifying + * each host adapter properly and uniquely. For hosts + * that do not support more than one card in the + * system, this does not need to be set. It is + * initialized to zero in scsi_register(). This is the + * value returned as aac->id. + */ + host_ptr->unique_id = aac_count - 1; + /* + * This function is called after the device list has + * been built to find the tagged queueing depth + * supported for each device. + */ + host_ptr->select_queue_depths = aac_queuedepth; + aac = (struct aac_dev *)host_ptr->hostdata; + /* attach a pointer back to Scsi_Host */ + aac->scsi_host_ptr = host_ptr; + aac->pdev = dev; + aac->cardtype = index; + aac->name = aac->scsi_host_ptr->hostt->name; + aac->id = aac->scsi_host_ptr->unique_id; + /* Initialize the ordinal number of the device to -1 */ + fsa_dev_ptr = &(aac->fsa_dev); + for( container = 0; container < MAXIMUM_NUM_CONTAINERS; container++ ) + fsa_dev_ptr->devno[container] = -1; + + dprintk((KERN_DEBUG "Initializing Hardware...\n")); + if((*aac_drivers[index].init)(aac , host_ptr->unique_id) != 0) + { + /* device initialization failed */ + printk(KERN_WARNING "aacraid: device initialization failed.\n"); + scsi_unregister(host_ptr); + aac_count--; + } + else + { + dprintk((KERN_DEBUG "%s:%d device initialization successful.\n", name, host_ptr->unique_id)); + aac_get_containers(aac); + aac_devices[aac_count-1] = aac; + } + } + } + + if( aac_count ){ + if((aac_cfg_major = register_chrdev( 0, "aac", &aac_cfg_fops))<0) + printk(KERN_WARNING "aacraid: unable to register \"aac\" device.\n"); + } + + template->present = aac_count; /* # of cards of this type found */ + return aac_count; +} + +/** + * aac_release - release SCSI host resources + * @host_ptr: SCSI host to clean up + * + * Release all resources previously acquired to support a specific Host + * Adapter and unregister the AAC Host Adapter. + * + * BUGS: Does not wait for the thread it kills to die. + */ + +static int aac_release(struct Scsi_Host *host_ptr) +{ + struct aac_dev *dev; + dprintk((KERN_DEBUG "aac_release.\n")); + dev = (struct aac_dev *)host_ptr->hostdata; + /* + * kill any threads we started + */ + kill_proc(dev->thread_pid, SIGKILL, 0); + wait_for_completion(&dev->aif_completion); + /* + * Call the comm layer to detach from this adapter + */ + aac_detach(dev); + /* Check free orderings... */ + /* remove interrupt binding */ + free_irq(host_ptr->irq, dev); + iounmap((void * )dev->regs.sa); + /* unregister adapter */ + scsi_unregister(host_ptr); + /* + * FIXME: This assumes no hot plugging is going on... + */ + if( aac_cfg_major >= 0 ) + { + unregister_chrdev(aac_cfg_major, "aac"); + aac_cfg_major = -1; + } + return 0; +} + +/** + * aac_queuecommand - queue a SCSI command + * @scsi_cmnd_ptr: SCSI command to queue + * @CompletionRoutine: Function to call on command completion + * + * Queues a command for execution by the associated Host Adapter. + */ + +static int aac_queuecommand(Scsi_Cmnd *scsi_cmnd_ptr, void (*CompletionRoutine)(Scsi_Cmnd *)) +{ + int ret; + + scsi_cmnd_ptr->scsi_done = CompletionRoutine; + /* + * aac_scsi_cmd() handles command processing, setting the + * result code and calling completion routine. + */ + if((ret = aac_scsi_cmd(scsi_cmnd_ptr)) != 0) + dprintk((KERN_DEBUG "aac_scsi_cmd failed.\n")); + return ret; +} + + +/** + * aac_done - Callback function for a non-queued command. + * @scsi_cmnd_ptr: SCSI command block to wait for + * + * Sets single_command done to 1. This lets aac_command complete. + * This function is obsolete. + * + * Bugs: Doesn't actually work properly with multiple controllers + */ + +static void aac_done(Scsi_Cmnd * scsi_cmnd_ptr) +{ + single_command_done = 1; +} + +/** + * aac_command - synchronous SCSI command execution + * @scsi_cmnd_ptr: SCSI command to issue + * + * Accepts a single command for execution by the associated Host Adapter. + * Waits until it completes an then returns an int where: + * Byte 0 = SCSI status code + * Byte 1 = SCSI 1 byte message + * Byte 2 = host error return + * Byte 3 = mid level error return + */ + +static int aac_command(Scsi_Cmnd *scsi_cmnd_ptr ) +{ + scsi_cmnd_ptr->scsi_done = aac_done; + dprintk((KERN_DEBUG "aac_command.\n")); + + /* + * aac_scsi_cmd() handles command processing, setting the + * result code and calling completion routine. + */ + single_command_done = 0; + aac_scsi_cmd(scsi_cmnd_ptr); + while(!single_command_done) + rmb(); + return scsi_cmnd_ptr->result; +} + +/** + * aac_abortcommand - Abort command if possible. + * @scsi_cmnd_ptr: SCSI command block to abort + * + * Called when the midlayer wishes to abort a command. We don't support + * this facility, and our firmware looks after life for us. We just + * report the command as busy. + */ + +static int aac_abortcommand(Scsi_Cmnd *scsi_cmnd_ptr ) +{ + return SCSI_ABORT_BUSY; +} + +/** + * aac_resetcommand - Reset command handling + * @scsi_cmnd_ptr: SCSI command block causing the reset + * @reset_flags: Reset hints from the midlayer code + * + * Issue a reset of a SCSI command. We are ourselves not truely a SCSI + * controller and our firmware will do the work for us anyway. Thus this + * is a no-op. We just return SCSI_RESET_PUNT + */ + +static int aac_resetcommand(struct scsi_cmnd *scsi_cmnd_ptr, unsigned int reset_flags ) +{ + return SCSI_RESET_PUNT; +} + +/** + * aac_driverinfo - Returns the host adapter name + * @host_ptr: Scsi host to report on + * + * Returns a static string describing the device in question + */ + +const char *aac_driverinfo(struct Scsi_Host *host_ptr) +{ + struct aac_dev *dev = (struct aac_dev *)host_ptr->hostdata; + return aac_drivers[dev->cardtype].name; +} + +/** + * aac_biosparm - return BIOS parameters for disk + * @disk: SCSI disk object to process + * @device: kdev_t of the disk in question + * @geom: geometry block to fill in + * + * Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk. + * The default disk geometry is 64 heads, 32 sectors, and the appropriate + * number of cylinders so as not to exceed drive capacity. In order for + * disks equal to or larger than 1 GB to be addressable by the BIOS + * without exceeding the BIOS limitation of 1024 cylinders, Extended + * Translation should be enabled. With Extended Translation enabled, + * drives between 1 GB inclusive and 2 GB exclusive are given a disk + * geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive + * are given a disk geometry of 255 heads and 63 sectors. However, if + * the BIOS detects that the Extended Translation setting does not match + * the geometry in the partition table, then the translation inferred + * from the partition table will be used by the BIOS, and a warning may + * be displayed. + */ + +static int aac_biosparm(Scsi_Disk *disk, kdev_t device, int *geom ) +{ + struct diskparm *param = (struct diskparm *)geom; + struct buffer_head * buf; + + dprintk((KERN_DEBUG "aac_biosparm.\n")); + + /* + * Assuming extended translation is enabled - #REVISIT# + */ + if( disk->capacity >= 2 * 1024 * 1024 ) /* 1 GB in 512 byte sectors */ + { + if( disk->capacity >= 4 * 1024 * 1024 ) /* 2 GB in 512 byte sectors */ + { + param->heads = 255; + param->sectors = 63; + } + else + { + param->heads = 128; + param->sectors = 32; + } + } + else + { + param->heads = 64; + param->sectors = 32; + } + + param->cylinders = disk->capacity/(param->heads * param->sectors); + + /* + * Read the first 1024 bytes from the disk device + */ + +#warning "Block size assumption is wrong to start with" + buf = bread(MKDEV(MAJOR(device), MINOR(device)&~0x0F), 0, 1024); + if(buf == NULL) + return 0; + /* + * If the boot sector partition table is valid, search for a partition + * table entry whose end_head matches one of the standard geometry + * translations ( 64/32, 128/32, 255/63 ). + */ + + if(*(unsigned short *)(buf->b_data + 0x1fe) == cpu_to_le16(0xaa55)) + { + struct partition *first = (struct partition * )(buf->b_data + 0x1be); + struct partition *entry = first; + int saved_cylinders = param->cylinders; + int num; + unsigned char end_head, end_sec; + + for(num = 0; num < 4; num++) + { + end_head = entry->end_head; + end_sec = entry->end_sector & 0x3f; + + if(end_head == 63) + { + param->heads = 64; + param->sectors = 32; + break; + } + else if(end_head == 127) + { + param->heads = 128; + param->sectors = 32; + break; + } + else if(end_head == 254) + { + param->heads = 255; + param->sectors = 63; + break; + } + entry++; + } + + if(num == 4) + { + end_head = first->end_head; + end_sec = first->end_sector & 0x3f; + } + + param->cylinders = disk->capacity / (param->heads * param->sectors); + + if(num < 4 && end_sec == param->sectors) + { + if(param->cylinders != saved_cylinders) + dprintk((KERN_DEBUG "Adopting geometry: heads=%d, sectors=%d from partition table %d.\n", + param->heads, param->sectors, num)); + } + else if(end_head > 0 || end_sec > 0) + { + dprintk((KERN_DEBUG "Strange geometry: heads=%d, sectors=%d in partition table %d.\n", + end_head + 1, end_sec, num)); + dprintk((KERN_DEBUG "Using geometry: heads=%d, sectors=%d.\n", + param->heads, param->sectors)); + } + } + brelse(buf); + return 0; +} + +/** + * aac_queuedepth - compute queue depths + * @host: SCSI host in question + * @dev: SCSI device we are considering + * + * Selects queue depths for each target device based on the host adapter's + * total capacity and the queue depth supported by the target device. + * A queue depth of one automatically disables tagged queueing. + */ + +static void aac_queuedepth(struct Scsi_Host * host, Scsi_Device * dev ) +{ + Scsi_Device * dptr; + + dprintk((KERN_DEBUG "aac_queuedepth.\n")); + dprintk((KERN_DEBUG "Device # Q Depth Online\n")); + dprintk((KERN_DEBUG "---------------------------\n")); + for(dptr = dev; dptr != NULL; dptr = dptr->next) + { + if(dptr->host == host) + { + dptr->queue_depth = 10; + dprintk((KERN_DEBUG " %2d %d %d\n", + dptr->id, dptr->queue_depth, dptr->online)); + } + } +} + +/*------------------------------------------------------------------------------ + aac_ioctl() + + Handle SCSI ioctls + *----------------------------------------------------------------------------*/ +static int aac_ioctl(Scsi_Device * scsi_dev_ptr, int cmd, void * arg) +/*----------------------------------------------------------------------------*/ +{ + struct aac_dev *dev; + dprintk((KERN_DEBUG "aac_ioctl.\n")); + dev = (struct aac_dev *)scsi_dev_ptr->host->hostdata; + return aac_do_ioctl(dev, cmd, arg); +} + +/** + * aac_cfg_open - open a configuration file + * @inode: inode being opened + * @file: file handle attached + * + * Called when the configuration device is opened. Does the needed + * set up on the handle and then returns + * + * Bugs: This needs extending to check a given adapter is present + * so we can support hot plugging, and to ref count adapters. + */ + +static int aac_cfg_open(struct inode * inode, struct file * file ) +{ + unsigned minor_number = MINOR(inode->i_rdev); + if(minor_number >= aac_count) + return -ENODEV; + return 0; +} + +/** + * aac_cfg_release - close down an AAC config device + * @inode: inode of configuration file + * @file: file handle of configuration file + * + * Called when the last close of the configuration file handle + * is performed. + */ + +static int aac_cfg_release(struct inode * inode, struct file * file ) +{ + return 0; +} + +/** + * aac_cfg_ioctl - AAC configuration request + * @inode: inode of device + * @file: file handle + * @cmd: ioctl command code + * @arg: argument + * + * Handles a configuration ioctl. Currently this involves wrapping it + * up and feeding it into the nasty windowsalike glue layer. + * + * Bugs: Needs locking against parallel ioctls lower down + * Bugs: Needs to handle hot plugging + */ + +static int aac_cfg_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg ) +{ + struct aac_dev *dev = aac_devices[MINOR(inode->i_rdev)]; + return aac_do_ioctl(dev, cmd, (void *)arg); +} + +/* + * To use the low level SCSI driver support using the linux kernel loadable + * module interface we should initialize the global variable driver_interface + * (datatype Scsi_Host_Template) and then include the file scsi_module.c. + */ + +static Scsi_Host_Template driver_template = AAC_HOST_TEMPLATE_ENTRY; + +#include "scsi_module.c" + +/** + * aac_procinfo - Implement /proc/scsi// + * @proc_buffer: memory buffer for I/O + * @start_ptr: pointer to first valid data + * @offset: offset into file + * @bytes_available: space left + * @host_no: scsi host ident + * @write: direction of I/O + * + * Used to export driver statistics and other infos to the world outside + * the kernel using the proc file system. Also provides an interface to + * feed the driver with information. + * + * For reads + * - if offset > 0 return 0 + * - if offset == 0 write data to proc_buffer and set the start_ptr to + * beginning of proc_buffer, return the number of characters written. + * For writes + * - writes currently not supported, return 0 + * + * Bugs: Only offset zero is handled + */ + +static int aac_procinfo(char *proc_buffer, char **start_ptr,off_t offset, + int bytes_available, int host_no, int write) +{ + if(write || offset > 0) + return 0; + *start_ptr = proc_buffer; + return sprintf(proc_buffer, "%s %d\n", "Raid Controller, scsi hba number", host_no); +} + +EXPORT_NO_SYMBOLS; diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/aacraid/rx.c linux.gamma/drivers/scsi/aacraid/rx.c --- linux.15p3/drivers/scsi/aacraid/rx.c Thu Jan 1 01:00:00 1970 +++ linux.gamma/drivers/scsi/aacraid/rx.c Fri Nov 30 13:57:53 2001 @@ -0,0 +1,415 @@ +/* + * Adaptec AAC series RAID controller driver + * (c) Copyright 2001 Red Hat Inc. + * + * based on the old aacraid driver that is.. + * Adaptec aacraid device driver for Linux. + * + * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Module Name: + * rx.c + * + * Abstract: Hardware miniport for Drawbridge specific hardware functions. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "scsi.h" +#include "hosts.h" + +#include "aacraid.h" + +static void aac_rx_intr(int irq, void *dev_id, struct pt_regs *regs) +{ + struct aac_dev *dev = dev_id; + unsigned long bellbits; + u8 intstat, mask; + + intstat = rx_readb(dev, MUnit.OISR); + /* + * Read mask and invert because drawbridge is reversed. + * This allows us to only service interrupts that have + * been enabled. + */ + mask = ~(rx_readb(dev, MUnit.OIMR)); + /* Check to see if this is our interrupt. If it isn't just return */ + if (intstat & mask) + { + bellbits = rx_readl(dev, OutboundDoorbellReg); + if (bellbits & DoorBellPrintfReady) + { + aac_printf(dev, rx_readl (dev, IndexRegs.Mailbox[5])); + rx_writel(dev, MUnit.ODR,DoorBellPrintfReady); + rx_writel(dev, InboundDoorbellReg,DoorBellPrintfDone); + } + else if (bellbits & DoorBellAdapterNormCmdReady) + { + aac_command_normal(&dev->queues->queue[HostNormCmdQueue]); + rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdReady); + } + else if (bellbits & DoorBellAdapterNormRespReady) + { + aac_response_normal(&dev->queues->queue[HostNormRespQueue]); + rx_writel(dev, MUnit.ODR,DoorBellAdapterNormRespReady); + } + else if (bellbits & DoorBellAdapterNormCmdNotFull) + { + rx_writel(dev, MUnit.ODR, DoorBellAdapterNormCmdNotFull); + } + else if (bellbits & DoorBellAdapterNormRespNotFull) + { + rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespNotFull); + } + } +} + +/** + * aac_rx_enable_interrupt - Enable event reporting + * @dev: Adapter + * @event: Event to enable + * + * Enable event reporting from the i960 for a given event. + */ + +static void aac_rx_enable_interrupt(struct aac_dev * dev, u32 event) +{ + switch (event) { + + case HostNormCmdQue: + dev->irq_mask &= ~(OUTBOUNDDOORBELL_1); + break; + + case HostNormRespQue: + dev->irq_mask &= ~(OUTBOUNDDOORBELL_2); + break; + + case AdapNormCmdNotFull: + dev->irq_mask &= ~(OUTBOUNDDOORBELL_3); + break; + + case AdapNormRespNotFull: + dev->irq_mask &= ~(OUTBOUNDDOORBELL_4); + break; + } +} + +/** + * aac_rx_disable_interrupt - Disable event reporting + * @dev: Adapter + * @event: Event to enable + * + * Disable event reporting from the i960 for a given event. + */ + +static void aac_rx_disable_interrupt(struct aac_dev *dev, u32 event) +{ + switch (event) { + + case HostNormCmdQue: + dev->irq_mask |= (OUTBOUNDDOORBELL_1); + break; + + case HostNormRespQue: + dev->irq_mask |= (OUTBOUNDDOORBELL_2); + break; + + case AdapNormCmdNotFull: + dev->irq_mask |= (OUTBOUNDDOORBELL_3); + break; + + case AdapNormRespNotFull: + dev->irq_mask |= (OUTBOUNDDOORBELL_4); + break; + } +} + +/** + * rx_sync_cmd - send a command and wait + * @dev: Adapter + * @command: Command to execute + * @p1: first parameter + * @p2: second parameter + * @p3: third parameter + * @p4: fourth parameter + * @ret: adapter status + * + * This routine will send a synchronous comamnd to the adapter and wait + * for its completion. + */ + +static int rx_sync_cmd(struct aac_dev *dev, unsigned long command, unsigned long p1, unsigned long p2, unsigned long p3, unsigned long p4, unsigned long *status) +{ + unsigned long start; + int ok; + /* + * Write the command into Mailbox 0 + */ + rx_writel(dev, InboundMailbox0, command); + /* + * Write the parameters into Mailboxes 1 - 4 + */ + rx_writel(dev, InboundMailbox1, p1); + rx_writel(dev, InboundMailbox2, p2); + rx_writel(dev, InboundMailbox3, p3); + rx_writel(dev, InboundMailbox4, p4); + /* + * Clear the synch command doorbell to start on a clean slate. + */ + rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0); + /* + * Disable doorbell interrupts + */ + rx_writeb(dev, MUnit.OIMR, rx_readb(dev, MUnit.OIMR) | 0x04); + /* + * Force the completion of the mask register write before issuing + * the interrupt. + */ + rx_readb (dev, MUnit.OIMR); + /* + * Signal that there is a new synch command + */ + rx_writel(dev, InboundDoorbellReg, INBOUNDDOORBELL_0); + + ok = 0; + start = jiffies; + + /* + * Wait up to 30 seconds + */ + while (time_before(start+30*HZ, jiffies)) + { + udelay(5); /* Delay 5 microseconds to let Mon960 get info. */ + /* + * Mon960 will set doorbell0 bit when it has completed the command. + */ + if (rx_readl(dev, OutboundDoorbellReg) & OUTBOUNDDOORBELL_0) { + /* + * Clear the doorbell. + */ + rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0); + ok = 1; + break; + } + /* + * Yield the processor in case we are slow + */ + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(1); + } + if (ok != 1) { + /* + * Restore interrupt mask even though we timed out + */ + rx_writeb(dev, MUnit.OIMR, rx_readl(dev, MUnit.OIMR) & 0xfb); + return -ETIMEDOUT; + } + /* + * Pull the synch status from Mailbox 0. + */ + *status = rx_readl(dev, IndexRegs.Mailbox[0]); + /* + * Clear the synch command doorbell. + */ + rx_writel(dev, OutboundDoorbellReg, OUTBOUNDDOORBELL_0); + /* + * Restore interrupt mask + */ + rx_writeb(dev, MUnit.OIMR, rx_readl(dev, MUnit.OIMR) & 0xfb); + return 0; + +} + +/** + * aac_rx_interrupt_adapter - interrupt adapter + * @dev: Adapter + * + * Send an interrupt to the i960 and breakpoint it. + */ + +static void aac_rx_interrupt_adapter(struct aac_dev *dev) +{ + unsigned long ret; + rx_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, &ret); +} + +/** + * aac_rx_notify_adapter - send an event to the adapter + * @dev: Adapter + * @event: Event to send + * + * Notify the i960 that something it probably cares about has + * happened. + */ + +static void aac_rx_notify_adapter(struct aac_dev *dev, u32 event) +{ + switch (event) { + + case AdapNormCmdQue: + rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_1); + break; + case HostNormRespNotFull: + rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_4); + break; + case AdapNormRespQue: + rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_2); + break; + case HostNormCmdNotFull: + rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_3); + break; + case HostShutdown: +// rx_sync_cmd(dev, HOST_CRASHING, 0, 0, 0, 0, &ret); + break; + case FastIo: + rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_6); + break; + case AdapPrintfDone: + rx_writel(dev, MUnit.IDR,INBOUNDDOORBELL_5); + break; + default: + BUG(); + break; + } +} + +/** + * aac_rx_start_adapter - activate adapter + * @dev: Adapter + * + * Start up processing on an i960 based AAC adapter + */ + +static void aac_rx_start_adapter(struct aac_dev *dev) +{ + unsigned long status; + struct aac_init *init; + + init = dev->init; + init->HostElapsedSeconds = jiffies/HZ; + /* + * Tell the adapter we are back and up and running so it will scan + * its command queues and enable our interrupts + */ + dev->irq_mask = (DoorBellPrintfReady | OUTBOUNDDOORBELL_1 | OUTBOUNDDOORBELL_2 | OUTBOUNDDOORBELL_3 | OUTBOUNDDOORBELL_4); + /* + * First clear out all interrupts. Then enable the one's that we + * can handle. + */ + rx_writeb(dev, MUnit.OIMR, 0xff); + rx_writel(dev, MUnit.ODR, 0xffffffff); +// rx_writeb(dev, MUnit.OIMR, ~(u8)OUTBOUND_DOORBELL_INTERRUPT_MASK); + rx_writeb(dev, MUnit.OIMR, 0xfb); + + rx_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (unsigned long) dev->init_pa, 0, 0, 0, &status); +} + +/** + * aac_rx_init - initialize an i960 based AAC card + * @dev: device to configure + * @devnum: adapter number + * + * Allocate and set up resources for the i960 based AAC variants. The + * device_interface in the commregion will be allocated and linked + * to the comm region. + */ + +int aac_rx_init(struct aac_dev *dev, unsigned long num) +{ + unsigned long start, end; + unsigned long status; + int instance; + const char * name; + + dev->devnum = num; + + instance = dev->id; + name = dev->name; + + /* + * Map in the registers from the adapter. + */ + if((dev->regs.rx = (struct rx_registers *)ioremap((unsigned long)dev->scsi_host_ptr->base, 8192))==NULL) + { + printk(KERN_WARNING "aacraid: unable to map i960.\n" ); + return -1; + } + /* + * Check to see if the board failed any self tests. + */ + if (rx_readl(dev, IndexRegs.Mailbox[7])&SELF_TEST_FAILED) { + printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance); + return -1; + } + /* + * Check to see if the board panic'd while booting. + */ + if (rx_readl(dev, IndexRegs.Mailbox[7]) & KERNEL_PANIC) { + printk(KERN_ERR "%s%d: adapter kernel panic'd.\n", dev->name, instance); + return -1; + } + start = jiffies; + /* + * Wait for the adapter to be up and running. Wait up to 3 minutes. + */ + while (!(rx_readl(dev, IndexRegs.Mailbox[7]) & KERNEL_UP_AND_RUNNING)) + { + end = jiffies; + if(time_after(end, start+30*HZ)) + { + status = rx_readl(dev, IndexRegs.Mailbox[7]) >> 16; + printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %ld.\n", dev->name, instance, status); + return -1; + } + } + if (request_irq(dev->scsi_host_ptr->irq, aac_rx_intr, SA_SHIRQ|SA_INTERRUPT, "aacraid", (void *)dev)<0) + { + printk(KERN_ERR "%s%d: Interrupt unavailable.\n", name, instance); + return -1; + } + /* + * Fill in the function dispatch table. + */ + dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter; + dev->a_ops.adapter_enable_int = aac_rx_enable_interrupt; + dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt; + dev->a_ops.adapter_notify = aac_rx_notify_adapter; + + if (aac_init_adapter(dev) == NULL) + return -1; + /* + * Start any kernel threads needed + */ + dev->thread_pid = kernel_thread((int (*)(void *))aac_command_thread, dev, 0); + /* + * Tell the adapter that all is configured, and it can start + * accepting requests + */ + aac_rx_start_adapter(dev); + return 0; +} diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/aacraid/sap1sup.c linux.gamma/drivers/scsi/aacraid/sap1sup.c --- linux.15p3/drivers/scsi/aacraid/sap1sup.c Thu Jan 1 01:00:00 1970 +++ linux.gamma/drivers/scsi/aacraid/sap1sup.c Fri Nov 30 13:58:03 2001 @@ -0,0 +1,397 @@ +/* + * Adaptec AAC series RAID controller driver + * (c) Copyright 2001 Red Hat Inc. + * + * based on the old aacraid driver that is.. + * Adaptec aacraid device driver for Linux. + * + * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Module Name: + * sap1sup.c + * + * Abstract: Drawbridge specific support functions + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "scsi.h" +#include "hosts.h" + +#include "aacraid.h" + +static void aac_sa_intr(int irq, void *dev_id, struct pt_regs *regs) +{ + struct aac_dev *dev = dev_id; + unsigned short intstat, mask; + + intstat = sa_readw(dev, DoorbellReg_p); + /* + * Read mask and invert because drawbridge is reversed. + * This allows us to only service interrupts that have been enabled. + */ + mask = ~(sa_readw(dev, SaDbCSR.PRISETIRQMASK)); + + /* Check to see if this is our interrupt. If it isn't just return */ + + if (intstat & mask) { + if (intstat & PrintfReady) { + aac_printf(dev, sa_readl(dev, Mailbox5)); + sa_writew(dev, DoorbellClrReg_p, PrintfReady); /* clear PrintfReady */ + sa_writew(dev, DoorbellReg_s, PrintfDone); + } else if (intstat & DOORBELL_1) { // dev -> Host Normal Command Ready + aac_command_normal(&dev->queues->queue[HostNormCmdQueue]); + sa_writew(dev, DoorbellClrReg_p, DOORBELL_1); + } else if (intstat & DOORBELL_2) { // dev -> Host Normal Response Ready + aac_response_normal(&dev->queues->queue[HostNormRespQueue]); + sa_writew(dev, DoorbellClrReg_p, DOORBELL_2); + } else if (intstat & DOORBELL_3) { // dev -> Host Normal Command Not Full + sa_writew(dev, DoorbellClrReg_p, DOORBELL_3); + } else if (intstat & DOORBELL_4) { // dev -> Host Normal Response Not Full + sa_writew(dev, DoorbellClrReg_p, DOORBELL_4); + } + } +} + +/** + * aac_sa_enable_interrupt - enable an interrupt event + * @dev: Which adapter to enable. + * @event: Which adapter event. + * + * This routine will enable the corresponding adapter event to cause an interrupt on + * the host. + */ + +void aac_sa_enable_interrupt(struct aac_dev *dev, u32 event) +{ + switch (event) { + + case HostNormCmdQue: + sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, DOORBELL_1); + break; + + case HostNormRespQue: + sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, DOORBELL_2); + break; + + case AdapNormCmdNotFull: + sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, DOORBELL_3); + break; + + case AdapNormRespNotFull: + sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, DOORBELL_4); + break; + } +} + +/** + * aac_sa_disable_interrupt - disable an interrupt event + * @dev: Which adapter to enable. + * @event: Which adapter event. + * + * This routine will enable the corresponding adapter event to cause an interrupt on + * the host. + */ + +void aac_sa_disable_interrupt (struct aac_dev *dev, u32 event) +{ + switch (event) { + + case HostNormCmdQue: + sa_writew(dev, SaDbCSR.PRISETIRQMASK, DOORBELL_1); + break; + + case HostNormRespQue: + sa_writew(dev, SaDbCSR.PRISETIRQMASK, DOORBELL_2); + break; + + case AdapNormCmdNotFull: + sa_writew(dev, SaDbCSR.PRISETIRQMASK, DOORBELL_3); + break; + + case AdapNormRespNotFull: + sa_writew(dev, SaDbCSR.PRISETIRQMASK, DOORBELL_4); + break; + } +} + +/** + * aac_sa_notify_adapter - handle adapter notification + * @dev: Adapter that notification is for + * @event: Event to notidy + * + * Notify the adapter of an event + */ + +void aac_sa_notify_adapter(struct aac_dev *dev, u32 event) +{ + switch (event) { + + case AdapNormCmdQue: + sa_writew(dev, DoorbellReg_s,DOORBELL_1); + break; + case HostNormRespNotFull: + sa_writew(dev, DoorbellReg_s,DOORBELL_4); + break; + case AdapNormRespQue: + sa_writew(dev, DoorbellReg_s,DOORBELL_2); + break; + case HostNormCmdNotFull: + sa_writew(dev, DoorbellReg_s,DOORBELL_3); + break; + case HostShutdown: + //sa_sync_cmd(dev, HOST_CRASHING, 0, 0, 0, 0, &ret); + break; + case FastIo: + sa_writew(dev, DoorbellReg_s,DOORBELL_6); + break; + case AdapPrintfDone: + sa_writew(dev, DoorbellReg_s,DOORBELL_5); + break; + default: + BUG(); + break; + } +} + + +/** + * sa_sync_cmd - send a command and wait + * @dev: Adapter + * @command: Command to execute + * @p1: first parameter + * @p2: second parameter + * @p3: third parameter + * @p4: fourth parameter + * @ret: adapter status + * + * This routine will send a synchronous comamnd to the adapter and wait + * for its completion. + */ + +static int sa_sync_cmd(struct aac_dev *dev, unsigned long command, unsigned long p1,unsigned long p2, unsigned long p3,unsigned long p4, unsigned long *ret) +{ + unsigned long start; + int ok; + /* + * Write the Command into Mailbox 0 + */ + sa_writel(dev, Mailbox0, command); + /* + * Write the parameters into Mailboxes 1 - 4 + */ + sa_writel(dev, Mailbox1, p1); + sa_writel(dev, Mailbox2, p2); + sa_writel(dev, Mailbox3, p3); + sa_writel(dev, Mailbox4, p4); + /* + * Clear the synch command doorbell to start on a clean slate. + */ + sa_writew(dev, DoorbellClrReg_p, DOORBELL_0); + /* + * Signal that there is a new synch command + */ + sa_writew(dev, DoorbellReg_s, DOORBELL_0); + + ok = 0; + start = jiffies; + + while(time_before(jiffies, start+30*HZ)) + { + /* + * Delay 5uS so that the monitor gets access + */ + udelay(5); + /* + * Mon110 will set doorbell0 bit when it has + * completed the command. + */ + if(sa_readw(dev, DoorbellReg_p) & DOORBELL_0) { + ok = 1; + break; + } + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(1); + } + + if (ok != 1) + return -ETIMEDOUT; + /* + * Clear the synch command doorbell. + */ + sa_writew( dev, DoorbellClrReg_p, DOORBELL_0); + /* + * Pull the synch status from Mailbox 0. + */ + *ret = sa_readl(dev, Mailbox0); + return 0; +} + +/** + * aac_sa_interrupt_adapter - interrupt an adapter + * @dev: Which adapter to enable. + * + * Breakpoint an adapter. + */ + +static void aac_sa_interrupt_adapter (struct aac_dev *dev) +{ + unsigned long ret; + sa_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, &ret); +} + +/** + * aac_sa_start_adapter - activate adapter + * @dev: Adapter + * + * Start up processing on an ARM based AAC adapter + */ + +static void aac_sa_start_adapter(struct aac_dev *dev) +{ + unsigned long ret; + struct aac_init *init; + /* + * Fill in the remaining pieces of the init. + */ + init = dev->init; + init->HostElapsedSeconds = jiffies/HZ; + + dprintk(("INIT\n")); + /* + * Tell the adapter we are back and up and running so it will scan its command + * queues and enable our interrupts + */ + dev->irq_mask = (PrintfReady | DOORBELL_1 | DOORBELL_2 | DOORBELL_3 | DOORBELL_4); + /* + * First clear out all interrupts. Then enable the one's that + * we can handle. + */ + dprintk(("MASK\n")); + sa_writew(dev, SaDbCSR.PRISETIRQMASK, (unsigned short) 0xffff); + sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, (PrintfReady | DOORBELL_1 | DOORBELL_2 | DOORBELL_3 | DOORBELL_4)); + dprintk(("SYNCCMD\n")); + sa_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (unsigned long) dev->init_pa, 0, 0, 0, &ret); +} + +/** + * aac_sa_init - initialize an ARM based AAC card + * @dev: device to configure + * @devnum: adapter number + * + * Allocate and set up resources for the ARM based AAC variants. The + * device_interface in the commregion will be allocated and linked + * to the comm region. + */ + +int aac_sa_init(struct aac_dev *dev, unsigned long devnum) +{ + unsigned long start; + unsigned long status; + int instance; + const char *name; + + dev->devnum = devnum; + + dprintk(("PREINST\n")); + instance = dev->id; + name = dev->name; + + /* + * Map in the registers from the adapter. + */ + dprintk(("PREMAP\n")); + + if((dev->regs.sa = (struct sa_registers *)ioremap((unsigned long)dev->scsi_host_ptr->base, 8192))==NULL) + { + printk(KERN_WARNING "aacraid: unable to map ARM.\n" ); + return -1; + } + /* + * Check to see if the board failed any self tests. + */ + if (sa_readl(dev, Mailbox7) & SELF_TEST_FAILED) { + printk(KERN_WARNING "%s%d: adapter self-test failed.\n", name, instance); + return -1; + } + /* + * Check to see if the board panic'd while booting. + */ + if (sa_readl(dev, Mailbox7) & KERNEL_PANIC) { + printk(KERN_WARNING "%s%d: adapter kernel panic'd.\n", name, instance); + return -1; + } + start = jiffies; + /* + * Wait for the adapter to be up and running. Wait up to 3 minutes. + */ + while (!(sa_readl(dev, Mailbox7) & KERNEL_UP_AND_RUNNING)) { + if (time_after(start+180*HZ, jiffies)) { + status = sa_readl(dev, Mailbox7) >> 16; + printk(KERN_WARNING "%s%d: adapter kernel failed to start, init status = %ld.\n", name, instance, status); + return -1; + } + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(1); + } + + dprintk(("ATIRQ\n")); + if (request_irq(dev->scsi_host_ptr->irq, aac_sa_intr, SA_SHIRQ|SA_INTERRUPT, "aacraid", (void *)dev ) < 0) { + printk(KERN_WARNING "%s%d: Interrupt unavailable.\n", name, instance); + return FAILURE; + } + + /* + * Fill in the function dispatch table. + */ + + dev->a_ops.adapter_interrupt = aac_sa_interrupt_adapter; + dev->a_ops.adapter_enable_int = aac_sa_enable_interrupt; + dev->a_ops.adapter_disable_int = aac_sa_disable_interrupt; + dev->a_ops.adapter_notify = aac_sa_notify_adapter; + + dprintk(("FUNCDONE\n")); + + if(aac_init_adapter(dev) == NULL) + return -1; + + dprintk(("NEWADAPTDONE\n")); + /* + * Start any kernel threads needed + */ + dev->thread_pid = kernel_thread((int (*)(void *))aac_command_thread, dev, 0); + /* + * Tell the adapter that all is configure, and it can start + * accepting requests + */ + dprintk(("STARTING\n")); + aac_sa_start_adapter(dev); + dprintk(("STARTED\n")); + return 0; +} + diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.15p3/drivers/scsi/scsi_scan.c linux.gamma/drivers/scsi/scsi_scan.c --- linux.15p3/drivers/scsi/scsi_scan.c Mon Nov 12 09:11:52 2001 +++ linux.gamma/drivers/scsi/scsi_scan.c Mon Nov 19 11:42:23 2001 @@ -160,6 +160,8 @@ {"SONY", "TSL", "*", BLIST_FORCELUN}, // DDS3 & DDS4 autoloaders {"DELL", "PERCRAID", "*", BLIST_FORCELUN}, {"HP", "NetRAID-4M", "*", BLIST_FORCELUN}, + {"ADAPTEC", "AACRAID", "*", BLIST_FORCELUN}, + {"ADAPTEC", "Adaptec 5400S", "*", BLIST_FORCELUN}, /* * Must be at end of list...