diff options
Diffstat (limited to 'sys/i386/isa/ida.c')
| -rw-r--r-- | sys/i386/isa/ida.c | 1786 |
1 files changed, 0 insertions, 1786 deletions
diff --git a/sys/i386/isa/ida.c b/sys/i386/isa/ida.c deleted file mode 100644 index 919d365..0000000 --- a/sys/i386/isa/ida.c +++ /dev/null @@ -1,1786 +0,0 @@ -/* - * Copyright (c) 1996, 1997, 1998, 1999 - * Mark Dawson and David James. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice immediately at the beginning of the file, without modification, - * this list of conditions, and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $Id: ida.c,v 1.1 1999/05/25 19:45:17 julian Exp $ - * - */ - -/* - * Compaq SMART disk array controller driver for FreeBSD. - * Supports the Compaq SMART-2 and SMART-3 families of disk - * array controllers. - * - */ - -#include "id.h" -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/conf.h> -#include <sys/errno.h> -#include <sys/malloc.h> -#include <sys/buf.h> -#include <sys/file.h> -#include <sys/stat.h> -#include <sys/proc.h> -#include <sys/sysctl.h> -#include <i386/isa/isa.h> -#include <i386/isa/isa_device.h> -#ifdef DEVFS -#include <sys/devfsext.h> -#endif /*DEVFS*/ -/*#include <sys/dkbad.h>*/ -#include <sys/devicestat.h> -#include <sys/disklabel.h> -#include <sys/diskslice.h> -#include <vm/vm.h> -#include <vm/vm_param.h> -#include <vm/vm_prot.h> -#include <vm/pmap.h> - -#include <pci.h> -#include <pci/pcireg.h> -#include <pci/pcivar.h> - -#include <sys/reboot.h> -extern u_long bootdev; - -#define IDA_VERSION 1 - -#define PAGESIZ 4096 - -/* IDA wdc vector stealing (cuckoo) control */ -#define IDA_CUCKOO_NEVER 0 /* never steal wdc vectors */ -#define IDA_CUCKOO_ROOTWD 1 /* steal iff rootdev is wd device */ -#define IDA_CUCKOO_ROOTNOTIDA 2 /* steal if rootdev not ida device */ -#define IDA_CUCKOO_ALWAYS 3 /* always steal wdc vectors */ - -#ifndef IDA_CUCKOO_MODE -#define IDA_CUCKOO_MODE IDA_CUCKOO_ALWAYS -#endif - -/* IDA PCI controller */ - -#define PCI_DEVICE_ID_COMPAQ_SMART2P 0xae100e11ul -#define PCI_CONTROLLER(ctlp) (ctlp->ident == PCI_DEVICE_ID_COMPAQ_SMART2P) - -typedef struct ida_pci_reg { - u_long unknown; - u_long initiate_fifo; -#define IDA_PCI_BUSY 1 - u_long complete_fifo; - u_long interrupt; -#define IDA_PCI_ENABLE_INTS 1 -#define IDA_PCI_DISABLE_INTS 0 - u_long status; -#define IDA_PCI_PENDING 1 -#define IDA_PCI_READY 2 -} ida_pci_reg_t; - -/* IDA controller register definitions */ - -#define R_ID0 0xc80 /* id byte 0 */ -#define R_ID1 0xc81 /* id byte 1 */ -#define R_ID2 0xc82 /* id byte 2 */ -#define R_ID3 0xc83 /* id byte 3 */ -#define R_CONF 0xc88 /* global configuration */ -#define R_SYSINT 0xc89 /* system interrupt enable/ctrl */ -#define R_SEM0 0xc8a /* semaphore port 0 */ -#define R_SEM1 0xc8b /* semaphore port 1 */ -#define R_LBELL_E 0xc8c /* local doorbell enable */ -#define R_LBELL_I 0xc8d /* local doorbell int/status */ -#define R_EBELL_E 0xc8e /* EISA doorbell enable */ -#define R_EBELL_I 0xc8f /* EISA doorbell int/status */ -#define R_SUB_ADDR 0xc90 /* submit address */ -#define R_SUB_LEN 0xc94 /* submit cmdlist size */ -#define R_COM_ADDR 0xc98 /* completion address */ -#define R_COM_OFF 0xc9c /* completion request offset */ -#define R_COM_STAT 0xc9e /* completion cmdlist status */ -#define R_INTDEF 0xcc0 /* interrupt definition */ - -/* - * BMIC doorbell status codes - */ - -#define BMIC_DATA_READY 0x01 /* data ready bit */ -#define BMIC_CHAN_CLEAR 0x02 /* channel clear bit */ - - -/* IDA controller command list return status values */ - -#define IDA_COMPL_OK 0x01 /* command list completed ok */ -#define IDA_NON_FATAL 0x02 /* non-fatal error */ -#define IDA_FATAL 0x04 /* fatal error */ -#define IDA_ABORTED 0x08 /* command list aborted */ -#define IDA_INVAL_REQ 0x10 /* bad request block */ -#define IDA_INVAL_LIST 0x20 /* bad command list */ -#define IDA_AARGH_LIST 0x40 /* totally disastrous command list */ - - -/* IDA controller command codes */ - -#define IDA_GET_DRV_INFO 0x10 -#define IDA_GET_CTL_INFO 0x11 -#define IDA_READ_DATA 0x20 -#define IDA_WRITE_DATA 0x30 -#define IDA_FLUSH_CACHE 0xc2 - - -/* Interrupt definition codes */ - -#define IDA_IRQ_MASK 0xfc -#define IDA_IRQ_10 0x20 -#define IDA_IRQ_11 0x10 -#define IDA_IRQ_14 0x40 -#define IDA_IRQ_15 0x80 - - -/* IDA controller hardware command structure definitions */ - -typedef u_long physaddr_t; - -struct ida_hdr { - u_long drive:8; /* logical drive */ - u_long priority:8; /* block priority */ - u_long flags:16; /* control flags */ -}; - -struct ida_req { - u_long next:16; /* offset of next request */ - u_long command:8; /* command */ - u_long error:8; /* return error code */ - u_long blkno; /* block number */ - u_short bcount; /* block count */ - u_short sgcount; /* number of scatter gather entries */ - - /* a struct ida_req is followed physically by an array of struct ida_sgb */ -}; - -struct ida_sgb { - u_long len; /* length of scatter gather segmmentk */ - physaddr_t addr; /* physical address of block */ -}; - - -/* first some handy definitions as FreeBSD gcc doesn't do #pragma pack() */ - -#define pack_char(name) u_char name[1] -#define pack_short(name) u_char name[2] -#define pack_int(name) u_char name[4] -#define pack_long(name) u_char name[4] - -/* ugly, but not inefficient, as it gets evaluated at compile time by gcc */ - -#define u_unpack(member) ( \ - (sizeof(member) == 1) ? *(u_char *)(member) \ - : (sizeof(member) == 2) ? *(u_short *)(member) \ - : *(u_int *)(member) \ - ) - -#define s_unpack(member) ( \ - (sizeof(member) == 1) ? *(char *)(member) \ - : (sizeof(member) == 2) ? *(short *)(member) \ - : *(int *)(member) \ - ) - -/* IDA controller hardware returned data structure definitions */ - -struct ida_ctl_info { - pack_char(num_drvs); - pack_long(signature); - pack_long(firm_rev); -}; - -struct ida_drv_info { - pack_short(secsize); - pack_long(secperunit); - pack_short(ncylinders); - pack_char(ntracks); - pack_char(signature); - pack_char(psectors); - pack_short(wprecomp); - pack_char(max_acc); - pack_char(control); - pack_short(pcylinders); - pack_char(ptracks); - pack_short(landing_zone); - pack_char(nsectors); - pack_char(checksum); - pack_char(mirror); -}; - - -/* IDA driver queue command block */ - -#define IDA_MAX_SGLEN 32 /* maximum entries in scatter gather list */ -#define IDA_MAX_DRVS_CTLR 8 /* maximum logical drives per controller */ -#define IDA_DEF_PRIORITY 16 /* default priority for command list */ - -#define IDA_SCSI_TARGET_ID 7 -#define IDA_QCB_MAX 256 - -struct ida_qcb { - /* first some hardware specific fields ... */ - - struct ida_hdr hdr; - struct ida_req req; - struct ida_sgb sglist[IDA_MAX_SGLEN]; - - /* and then some driver queue managment stuff */ - - u_int flags; /* qcb type */ -#define QCB_FREE 0 /* ready for a new command */ -#define QCB_ACTIVE 1 /* waiting to be sent to the controller */ -#define QCB_SENT 2 /* waiting for interrupt from the controller */ -#define QCB_IMMED 4 /* immediate (non-queued) command */ -#define QCB_IMMED_FAIL 8 - struct ida_qcb *next; /* next ida command block of this type */ - struct ida_qcb *last; /* last ida command block of this type */ - struct buf *buf; /* buf associated with this qcb */ - physaddr_t paddr; /* physical address of this struct */ - struct ida_qcb *nexthash; /* next ida command block with same hash value */ -}; -typedef struct ida_qcb qcb_t; - - -/* IDA driver controller and drive information blocks */ - -#define QCB_HASH_SIZE 257 /* some suitable prime number */ -#define QCB_HASH(h) ((h) % QCB_HASH_SIZE) - -struct ida_drv { - u_int flags; -#define ID_INIT 0x0001 -#define ID_WRITEPROT 0x0002 -#define ID_DEV_OPEN 0x0004 - u_int ctl_unit; /* which controller is this drive on */ - u_int drv_unit; /* number of this virtual disk */ - struct ida_drv_info drv_info; /* data from the controller */ - struct diskslices *slices; /* new slice code */ - struct devstat dk_stats; /* devstat entry */ -}; - -struct ida_ctl { - u_int ident; /* controller identifier */ - u_int flags; - u_int iobase; - u_short inside; /* number of qcbs in the controller */ - u_short max_inside; /* maximum number simulaneously active */ - u_short num_qcbs; /* number of qcbs allocated */ - u_char num_drvs; - u_char irq; - u_char com_status; /* status of last completed command list */ - physaddr_t com_addr; /* address of last completed command list */ - u_short com_offset; /* offset of last completed command list */ - qcb_t *freelist; /* linked list of free qcbs */ - qcb_t *send_next; /* doubly-linked list of unsent qcbs */ - qcb_t *send_last; /* because we must treat all jobs equally */ - qcb_t *hashlist[QCB_HASH_SIZE]; -}; - -extern struct ida_ctl *idadata[NIDA]; - - -/* Useful IDA controller IO macro definitions */ - -#define IDA_DISABLE_INTERRUPT(iobase) outb(iobase + R_SYSINT, 0) -#define IDA_ENABLE_INTERRUPT(ctlp) outb(ctlp->iobase + R_SYSINT, 1) - -#define IDA_SET_READY(ctlp) outb(ctlp->iobase + R_EBELL_E, 1) - -#define IDA_DATA_READY(ctlp) ((inb(ctlp->iobase + R_EBELL_I) & 1)) -#define IDA_CHAN_CLEAR(ctlp) ((inb(ctlp->iobase + R_EBELL_I) & 2)) - -/* enable/disable interrupts on a change of channel clear status (?) */ - -#define IDA_ENABLE_CHAN(ctlp) \ -outb(ctlp->iobase + R_EBELL_E, inb(ctlp->iobase + R_EBELL_E) | 2) -#define IDA_DISABLE_CHAN(ctlp) \ -outb(ctlp->iobase + R_EBELL_E, inb(ctlp->iobase + R_EBELL_E) & ~0x2) - -/* acknowledge the completion of a command */ - -#define IDA_ACK_CMD_COM(ctlp) \ -(outb(ctlp->iobase + R_EBELL_I, 1), outb(ctlp->iobase + R_LBELL_I, 2)) - -/* set submission details for a command list */ - -#define IDA_SET_SUB_ADDR(ctlp, addr) outl(ctlp->iobase + R_SUB_ADDR, addr) -#define IDA_SET_SUB_LEN(ctlp, size) outw(ctlp->iobase + R_SUB_LEN, size) - -/* get completion details for a command list */ - -#define IDA_GET_COM_ADDR(ctlp) inl(ctlp->iobase + R_COM_ADDR) -#define IDA_GET_COM_OFFSET(ctlp) inw(ctlp->iobase + R_COM_OFF) -#define IDA_GET_COM_STATUS(ctlp) inb(ctlp->iobase + R_COM_STAT) - - -#define IDA_READ_EBELL_I(ctlp) inb(ctlp->iobase + R_EBELL_I) -#define IDA_READ_EBELL_E(ctlp) inb(ctlp->iobase + R_EBELL_E) -#define IDA_READ_LBELL_I(ctlp) inb(ctlp->iobase + R_LBELL_I) -#define IDA_SET_EBELL_I(ctlp, n) outb(ctlp->iobase + R_EBELL_I, n) -#define IDA_SET_LBELL_I(ctlp, n) outb(ctlp->iobase + R_LBELL_I, n) - -#define JOB_SUCCESS 0 -#define JOB_FAILURE 1 -#define JOB_ABORTED 2 - -/* debugging aids */ - -#ifdef IDADEBUG -# define IDA_MAXQCBS (1<<0) -# define IDA_SHOWQCBS (1<<1) -# define IDA_SHOWSUBS (1<<2) -# define IDA_SHOWINTS (1<<3) -# define IDA_SHOWCMDS (1<<4) -# define IDA_SHOWMISC (1<<5) -void ida_print_qcb(qcb_t *qcbp); -void ida_print_active_qcb(int unit); -static int ida_debug = 0; -SYSCTL_INT(_debug, OID_AUTO, ida_debug, CTLFLAG_RW, &ida_debug, 0, ""); -#endif - -static int ida_soft_errors = 0; -SYSCTL_INT(_debug, OID_AUTO, ida_soft_errors, - CTLFLAG_RW, &ida_soft_errors, 0, ""); - -/* EISA probe and board identification definitions */ - -#define MAX_EISA_SLOT 16 -#define IDA_EISA_PROD_ID 0x40 - -union eisa_id { - u_int value; - struct { - u_int rev:8; - u_int prod:8; - u_int mfr2:5; - u_int mfr1:5; - u_int mfr0:5; - } split; -}; - - -/* test the manufacturer ID within an EISA board ID */ - -#define EISA_MFR_EQ(ident, mfr) ( \ - (ident).split.mfr0 + '@' == (mfr)[0] && \ - (ident).split.mfr1 + '@' == (mfr)[1] && \ - (ident).split.mfr2 + '@' == (mfr)[2] \ - ) - -/* generates a list of EISA board ID values, suitable for a printf */ - -#define EISA_ID_LIST(ident) \ -(ident).split.mfr0 + '@', \ - (ident).split.mfr1 + '@', \ - (ident).split.mfr2 + '@', \ - (ident).split.prod, \ - (ident).split.rev - -extern void DELAY(int millisecs); - -/* FreeBSD IDA driver forward function definitions */ - -static d_open_t idopen; -static d_read_t idread; -static d_write_t idwrite; -static d_close_t idclose; -static d_strategy_t idstrategy; -static d_ioctl_t idioctl; -static d_dump_t iddump; -static d_psize_t idsize; - -static pci_inthand_t idaintr; - -static const char *ida_pci_probe(pcici_t tag, pcidi_t type); -static void ida_pci_attach(pcici_t config_id, int unit); - -static int ida_eisa_probe __P((struct isa_device *dev)); -static int ida_eisa_attach __P((struct isa_device *dev)); -static int ida_poll __P((int unit, int wait)); - -static void idaminphys __P((struct buf *bp)); -static void ida_start __P((int unit)); - -static int ida_get_ctl_info(int unit); -static int ida_attach_drives(int unit); -void ida_done(int cntlr, qcb_t *qcbp, int state); -static void ida_queue_buf(int cntlr, struct buf *bp); -static void ida_newqueue(int cntlr); -static qcb_t *ida_dequeue(int cntlr); -static void ida_enqueue(int cntlr, qcb_t *qcbp); -static int ida_submit(int unit, qcb_t *qcbp, int size); -static int ida_submit_wait(int unit, qcb_t *qcbp, int size); -static qcb_t *ida_get_qcb(int unit); -static void ida_free_qcb(int unit, qcb_t *qcbp); -static qcb_t *ida_qcb_phys_kv(struct ida_ctl *ida, physaddr_t ida_qcb_phys); - -static struct cdevsw id_cdevsw; - -struct isa_driver idadriver = { - ida_eisa_probe, - ida_eisa_attach, - "ida" -}; - -static u_long ida_pci_count; - -static struct pci_device ida_pci_driver = { - "ida", - ida_pci_probe, - ida_pci_attach, - &ida_pci_count -}; - -DATA_SET (pcidevice_set, ida_pci_driver); - -/* definitions for stealing wd driver's vectors */ - -#define ID_BDMAJ 29 -#define ID_CDMAJ 109 -#define WD_BDMAJ 0 -#define WD_CDMAJ 3 - -struct isa_driver wdcdriver; -static int stub_probe __P((struct isa_device *dev)); -static int stub_attach __P((struct isa_device *dev)); - -static struct isa_driver nodriver = { - stub_probe, - stub_attach, - "stub" -}; - -/* steal the wdc driver's vectors if we have booted off a wd device */ - -static -void -ida_cuckoo_wdc(void) -{ - int cuckoo = IDA_CUCKOO_MODE; - int steal = 0; - char *mode; - int major = B_TYPE(bootdev); - - if (cuckoo == IDA_CUCKOO_NEVER) { - mode = "never"; - } else if (cuckoo == IDA_CUCKOO_ROOTWD) { - mode = "rootwd"; - steal = (major == WD_BDMAJ); - } else if (cuckoo == IDA_CUCKOO_ROOTNOTIDA) { - mode = "notida"; - /* check for magic value of 3 rather than ID_BDMAJ as boot code - * pretends we are a wt device (not normally bootable) - */ - steal = (major != 3); - } else { - mode = "always"; - steal = 1; - } - - printf("ida: wdc vector stealing %s (mode = %s, boot major = %d)\n", - (steal ? "on" : "off"), mode, major); - if (!steal) return; - - /* OK - we have a controller, so steal wd driver's vectors */ - wdcdriver = nodriver; - bdevsw[WD_BDMAJ]->d_open = cdevsw[WD_CDMAJ]->d_open = idopen; - bdevsw[WD_BDMAJ]->d_close = cdevsw[WD_CDMAJ]->d_close = idclose; - bdevsw[WD_BDMAJ]->d_read = cdevsw[WD_CDMAJ]->d_read = idread; - bdevsw[WD_BDMAJ]->d_write = cdevsw[WD_CDMAJ]->d_write = idwrite; - bdevsw[WD_BDMAJ]->d_strategy = cdevsw[WD_CDMAJ]->d_strategy = idstrategy; - bdevsw[WD_BDMAJ]->d_ioctl = cdevsw[WD_CDMAJ]->d_ioctl = idioctl; - bdevsw[WD_BDMAJ]->d_dump = iddump; - bdevsw[WD_BDMAJ]->d_psize = idsize; - return; -} - -static struct ida_ctl *idadata[NIDA]; /* controller structures */ -static struct ida_drv *id_drive[NID]; /* table of drives */ -static int id_unit = 0; /* number of drives found */ - -/* general purpose data buffer for 'special' IDA driver commands */ - -union ida_buf { - char pad[512]; - struct ida_ctl_info ctl; - struct ida_drv_info drv; -} ida_buf; - -static int -stub_probe(struct isa_device *dev) -{ - return 0; -} - -static int -stub_attach(struct isa_device *dev) -{ - return 0; -} - -const char * -ida_pci_probe(pcici_t tag, pcidi_t type) -{ - switch (type) { - case PCI_DEVICE_ID_COMPAQ_SMART2P: - return "Compaq SMART-2/P array controller"; - break; - default: - break; - } - return NULL; -} - -static void -ida_pci_attach(pcici_t config_id, int unit) -{ - ida_pci_reg_t *reg; - struct ida_ctl *ctlp; - u_long id; - vm_offset_t paddr, vaddr; - - id = pci_conf_read(config_id, PCI_ID_REG); - switch (id) { - case PCI_DEVICE_ID_COMPAQ_SMART2P: - break; - default: - break; - } - - if (!pci_map_mem(config_id, 0x14, &vaddr, &paddr)) { - printf("ida: map failed.\n"); - return; - } - - /* allocate and initialise a storage area for this controller */ - if (idadata[unit]) { - printf("ida%d: controller structure already allocated\n", unit); - return; - } - if ((ctlp = malloc(sizeof(struct ida_ctl), M_TEMP, M_NOWAIT)) == NULL) { - printf("ida%d: unable to allocate controller structure\n", unit); - return; - } - - idadata[unit] = ctlp; - bzero(ctlp, sizeof(struct ida_ctl)); - ctlp->ident = id; - ctlp->iobase = vaddr; - - /* Install the interrupt handler. */ - if (!pci_map_int (config_id, idaintr, (void *)unit, &bio_imask)) { - printf ("ida%d: failed to assign an interrupt handler\n", unit); - free((caddr_t)ctlp, M_DEVBUF); - idadata[unit] = 0; - return; - } - - if (!(ida_get_ctl_info(unit) && ida_attach_drives(unit))) { - return; - } - - reg = (ida_pci_reg_t *) vaddr; - reg->interrupt = IDA_PCI_ENABLE_INTS; - ida_cuckoo_wdc(); - return; -} - -int -ida_eisa_probe(struct isa_device *dev) -{ - static u_int ida_used = 0; - u_int slot; - u_int port; - u_char intdef; - u_char irq; - int unit = dev->id_unit; - union eisa_id ident; - struct ida_ctl *ctlp; - - if (dev->id_iobase) { - /* check out the configured iobase if given one */ - slot = dev->id_iobase / 0x1000; - if (slot == 0 || slot > MAX_EISA_SLOT) { - printf("ida: port address (0x%x) out of range\n", dev->id_iobase); - return 0; - } - } else { - /* otherwise, search from the beginning for an unused slot to check out */ - slot = 1; - } - - while (1) { - while (ida_used & (1 << slot)) { - if (slot++ == MAX_EISA_SLOT) return 0; - } - - ida_used |= (1 << slot); - port = slot * 0x1000; - - /* read the EISA identification bytes */ - ident.value = inb(port + R_ID0); - ident.value <<= 8; - ident.value |= inb(port + R_ID1); - ident.value <<= 8; - ident.value |= inb(port + R_ID2); - ident.value <<= 8; - ident.value |= inb(port + R_ID3); - - /* check that the card is the right type ? */ - if (EISA_MFR_EQ(ident, "CPQ") && ident.split.prod == IDA_EISA_PROD_ID) { - break; - } - - /* if we were config'ed with an iobase, then don't probe any more slots */ - if (dev->id_iobase) return 0; - } - - /* disable interrupts and find out what interrupt this controller uses */ - IDA_DISABLE_INTERRUPT(port); - - intdef = inb(port + R_INTDEF); - switch (intdef & IDA_IRQ_MASK) { - case IDA_IRQ_10: - irq = 10; - break; - - case IDA_IRQ_11: - irq = 11; - break; - - case IDA_IRQ_14: - irq = 14; - break; - - case IDA_IRQ_15: - irq = 15; - break; - - default: - printf("ida: slot %d bogus interrupt setting (0x%02x)\n", slot, intdef); - return 0; - } - dev->id_irq = (1 << irq); - dev->id_drq = -1; - - /* allocate and initialise a storage area for this controller */ - if (idadata[unit]) { - printf("ida%d: controller structure already allocated\n", unit); - return 0; - } - if ((ctlp = malloc(sizeof(struct ida_ctl), M_TEMP, M_NOWAIT)) == NULL) { - printf("ida%d: unable to allocate controller structure\n", unit); - return 0; - } - idadata[unit] = ctlp; - - bzero(ctlp, sizeof(struct ida_ctl)); - ctlp->iobase = dev->id_iobase = port; - ctlp->ident = ident.value; - ctlp->irq = irq; - - if (ida_get_ctl_info(unit) == 0) { - return 0; - } - - /* return range of io ports used */ - return 0x1000; -} - -int -ida_get_ctl_info(int unit) -{ - struct ida_ctl *ctlp = idadata[unit]; - qcb_t qcb; - qcb_t *qcbp = &qcb; - - ida_newqueue(unit); - /* controller capacity statistics */ - ctlp->inside = 0; - ctlp->max_inside = 0; - - /* ask the controller to tell us about itself with an IDA_GET_CTL_INFO */ - bzero(qcbp, sizeof(qcb_t)); - qcbp->paddr = vtophys(qcbp); - if (PCI_CONTROLLER(ctlp)) { - qcbp->hdr.priority = 0x00; - qcbp->hdr.flags = 0x24; - } else { - qcbp->hdr.priority = IDA_DEF_PRIORITY; - qcbp->hdr.flags = 0x12; - } - qcbp->req.command = IDA_GET_CTL_INFO; - qcbp->req.bcount = 1; - qcbp->req.sgcount = 1; - qcbp->sglist[0].len = sizeof(ida_buf); - qcbp->sglist[0].addr = vtophys(&ida_buf); - - if (ida_submit_wait(unit, qcbp, sizeof(struct ida_qcb))) { - printf("ida%d: idasubmit failed on IDA_GET_CTL_INFO\n", unit); - return 0; - } - - if (!PCI_CONTROLLER(ctlp)) { - if (ctlp->com_status != IDA_COMPL_OK) { - printf("ida%d: bad status 0x%02x from IDA_GET_CTL_INFO\n", - unit, ctlp->com_status); - return 0; - } - } - - /* got the information at last, print it and note the number of drives */ - printf("ida%d: drvs=%d firm_rev=%c%c%c%c\n", unit, - u_unpack(ida_buf.ctl.num_drvs), ida_buf.ctl.firm_rev[0], - ida_buf.ctl.firm_rev[1], ida_buf.ctl.firm_rev[2], - ida_buf.ctl.firm_rev[3]); - ctlp->num_drvs = u_unpack(ida_buf.ctl.num_drvs); - - return 1; -} - -int -ida_attach_drives(int cntlr) -{ - struct ida_ctl *ctlp = idadata[cntlr]; - qcb_t qcb; - qcb_t *qcbp = &qcb; - struct ida_drv *drv; - int drive; - int unit; - - /* prepare to interrogate the drives */ - bzero(qcbp, sizeof(qcb_t)); - qcbp->req.command = IDA_GET_DRV_INFO; - qcbp->paddr = vtophys(qcbp); - if (PCI_CONTROLLER(ctlp)) { - qcbp->hdr.priority = 0x00; - qcbp->hdr.flags = 0x24; - } else { - qcbp->hdr.priority = IDA_DEF_PRIORITY; - qcbp->hdr.flags = 0x12; - } - qcbp->req.bcount = 1; - qcbp->req.sgcount = 1; - qcbp->sglist[0].len = sizeof(ida_buf); - qcbp->sglist[0].addr = vtophys(&ida_buf); - - for (drive = 0 ; drive < ctlp->num_drvs ; drive++) { - qcbp->hdr.drive = drive; - - if (ida_submit_wait(cntlr, qcbp, sizeof(struct ida_qcb))) { - printf("ida%d: ida_submit_wait failed on IDA_GET_DRV_INFO\n", cntlr); - return 0; - } - - if (!PCI_CONTROLLER(ctlp)) { - if (ctlp->com_status != IDA_COMPL_OK) { - printf("ida%d: bad status 0x%02x from IDA_GET_DRV_INFO\n", - cntlr, ctlp->com_status); - return 0; - } - } - - if ((drv = malloc(sizeof(struct ida_drv), M_TEMP, M_NOWAIT)) == NULL) { - printf("ida%d: unable to allocate drive structure\n", cntlr); - return 0; - } - - bzero(drv, sizeof(struct ida_drv)); - drv->ctl_unit = cntlr; - drv->drv_unit = drive; - drv->drv_info = ida_buf.drv; - drv->flags |= ID_INIT; - - unit = id_unit; - id_unit++; /* XXX unsure if this is the right way to do things */ - id_drive[unit] = drv; - - printf("ida%d: unit %d (id%d): <%s>\n", - cntlr, drive, unit, "Compaq Logical Drive"); - printf("id%d: %luMB (%lu total sec), ", - unit, - (u_long)(u_unpack(drv->drv_info.secperunit) / 2048) - * (u_unpack(drv->drv_info.secsize) / 512), - (u_long)u_unpack(drv->drv_info.secperunit)); - printf("%lu cyl, %lu head, %lu sec, bytes/sec %lu\n", - (u_long)u_unpack(drv->drv_info.ncylinders), - (u_long)u_unpack(drv->drv_info.ntracks), - (u_long)u_unpack(drv->drv_info.nsectors), - (u_long)u_unpack(drv->drv_info.secsize)); - - /* - * Export the drive to the devstat interface. - */ - devstat_add_entry(&drv->dk_stats, "id", - unit, (u_int32_t)drv->drv_info.secsize, - DEVSTAT_NO_ORDERED_TAGS, - DEVSTAT_TYPE_DIRECT | DEVSTAT_TYPE_IF_OTHER); - -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWMISC) { - printf("ida%d: drive %d secsize=%d secperunit=%d ncylinders=%d ntracks=%d\n", - unit, - drive, - u_unpack(ida_buf.drv.secsize), - u_unpack(ida_buf.drv.secperunit), - u_unpack(ida_buf.drv.ncylinders), - u_unpack(ida_buf.drv.ntracks)); - printf(" signature=0x%02x psectors=%d wprecomp=%d max_acc=%d control=0x%02x\n", - u_unpack(ida_buf.drv.signature), - u_unpack(ida_buf.drv.psectors), - u_unpack(ida_buf.drv.wprecomp), - u_unpack(ida_buf.drv.max_acc), - u_unpack(ida_buf.drv.control)); - printf(" pcylinders=%d ptracks=%d landing_zone=%d nsectors=%d checksum=0x%02x\n", - u_unpack(ida_buf.drv.pcylinders), - u_unpack(ida_buf.drv.ptracks), - u_unpack(ida_buf.drv.landing_zone), - u_unpack(ida_buf.drv.nsectors), - u_unpack(ida_buf.drv.checksum)); - } -#endif - } - - return 1; -} - -/* Attach all the sub-devices we can find. */ -int -ida_eisa_attach(struct isa_device *dev) -{ - int cntlr = dev->id_unit; - struct ida_ctl *ctlp = idadata[cntlr]; - - if (ida_attach_drives(cntlr)) { - IDA_ENABLE_INTERRUPT(ctlp); - IDA_SET_READY(ctlp); - ida_cuckoo_wdc(); - return 1; - } else { - return 0; - } -} - -/* - * Initialize a drive. - */ -int -idopen(dev_t dev, int flags, int fmt, struct proc *p) -{ - struct ida_drv *drv; - int part = dkpart(dev); - int unit = dkunit(dev); - struct disklabel label; - int err; - - if (unit >= NID || part >= MAXPARTITIONS) /* bounds check */ - return(ENXIO); - - drv = id_drive[unit]; - if (!drv || !(drv->flags & ID_INIT)) /* drive not initialised */ - return(ENXIO); - - drv->flags |= ID_DEV_OPEN; - - /* knock up a label for the whole disk. */ - bzero(&label, sizeof label); - label.d_secsize = u_unpack(drv->drv_info.secsize); - label.d_nsectors = u_unpack(drv->drv_info.nsectors); - label.d_ntracks = u_unpack(drv->drv_info.ntracks); - label.d_ncylinders = u_unpack(drv->drv_info.ncylinders); - label.d_secpercyl = - u_unpack(drv->drv_info.ntracks) * u_unpack(drv->drv_info.nsectors); - if (label.d_secpercyl == 0) - label.d_secpercyl = 100; /* prevent accidental division by zero */ - label.d_secperunit = u_unpack(drv->drv_info.secperunit); - - /* Initialize slice tables. */ - if ((err = dsopen("id", dev, fmt, 0, &drv->slices, &label, idstrategy, - (ds_setgeom_t *)NULL, &id_cdevsw)) == NULL) { - return 0; - } - - if (!dsisopen(drv->slices)) { - drv->flags &= ~ID_DEV_OPEN; - } - return err; -} - -/* ARGSUSED */ -int -idclose(dev_t dev, int flags, int fmt, struct proc *p) -{ - struct ida_drv *drv; - int part = dkpart(dev); - int unit = dkunit(dev); - - if (unit >= NID || part >= MAXPARTITIONS) /* bounds check */ - return(ENXIO); - - drv = id_drive[unit]; - dsclose(dev, fmt, drv->slices); - if (!dsisopen(drv->slices)) { - drv->flags &= ~ID_DEV_OPEN; - } - return 0; -} - - - -int -idioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) -{ - struct ida_drv *drv; - int part = dkpart(dev); - int unit = dkunit(dev); - int err; - - if (unit >= NID || part >= MAXPARTITIONS || - !(drv = id_drive[unit]) || !(drv->flags & ID_INIT)) /* sanity check */ - return(ENXIO); - - err = dsioctl("id", dev, cmd, addr, flag, &drv->slices, - idstrategy, (ds_setgeom_t *)NULL); - - if (err != -1) - return (err); - - if (dkpart(dev) != RAW_PART) - return (ENOTTY); - - return (0); -} -static int -idread(dev_t dev, struct uio *uio, int ioflag) -{ - return (physio(idstrategy, NULL, dev, 1, minphys, uio)); -} - -static int -idwrite(dev_t dev, struct uio *uio, int ioflag) -{ - return (physio(idstrategy, NULL, dev, 0, minphys, uio)); -} - - -/* Read/write routine for a buffer. Finds the proper unit, range checks - * arguments, and schedules the transfer. Does not wait for the transfer - * to complete. Multi-page transfers are supported. All I/O requests must - * be a multiple of a sector in length. - */ -void -idstrategy(struct buf *bp) -{ - int unit = dkunit(bp->b_dev); - struct ida_drv *drv; - int opri; - - if (unit >= NID) { - printf("ida: unit out of range\n"); - bp->b_error = EINVAL; - goto bad; - } - - if (!(drv = id_drive[unit]) || !(drv->flags & ID_INIT)) { - printf("id%d: drive not initialised\n", unit); - bp->b_error = EINVAL; - goto bad; - } - - if (bp->b_blkno < 0) { - printf("id%d: negative block requested\n", unit); - bp->b_error = EINVAL; - goto bad; - } - - if (bp->b_bcount % DEV_BSIZE != 0) { /* bounds check */ - printf("id%d: count (%lu) not a multiple of a block\n", - unit, bp->b_bcount); - bp->b_error = EINVAL; - goto bad; - } - - idaminphys(bp); /* adjust the transfer size */ - - /* "soft" write protect check */ - if ((drv->flags & ID_WRITEPROT) && (bp->b_flags & B_READ) == 0) { - bp->b_error = EROFS; - goto bad; - } - - /* If it's a null transfer, return immediately */ - if (bp->b_bcount == 0) { - goto done; - } - - if (dscheck(bp, drv->slices) <= 0) { - goto done; - } - - opri = splbio(); - ida_queue_buf(unit, bp); - devstat_start_transaction(&drv->dk_stats); - ida_start(drv->ctl_unit); /* hit the appropriate controller */ - splx(opri); - - return /*0*/; - -bad: - bp->b_flags |= B_ERROR; - -done: - /* correctly set the buf to indicate a completed xfer */ - bp->b_resid = bp->b_bcount; - biodone(bp); - return /*0*/; -} - - -void -idaminphys(bp) -struct buf *bp; -{ - /* assumes each page requires an sgb entry */ - int max = (IDA_MAX_SGLEN - 1) * PAGESIZ; - if (bp->b_bcount > max) { - bp->b_bcount = max; - } -} - - -/* Get a free qcb. - * If there are none, see if we can allocate a new one. - * If so, put it in the hash table too, - * otherwise either return an error or sleep. - */ -static qcb_t * -ida_get_qcb(int unit) -{ - struct ida_ctl *ida = idadata[unit]; - unsigned opri = 0; - qcb_t *qcbp; - int hashnum; - - opri = splbio(); - - /* if the freelist is empty - create a qcb until limit is reached */ - while (!(qcbp = ida->freelist)) { - if (ida->num_qcbs < IDA_QCB_MAX) { - qcbp = (qcb_t *)malloc(sizeof(qcb_t), M_TEMP, M_NOWAIT); - if (qcbp) { - bzero(qcbp, sizeof(qcb_t)); - ida->num_qcbs++; - qcbp->flags = QCB_ACTIVE; -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWQCBS) - printf("ida_get_qcb%d: qcb %d created\n", - unit, ida->num_qcbs); -#endif - /* Put in the phystokv hash table. */ - /* Never gets taken out. */ - qcbp->paddr = vtophys(qcbp); - hashnum = QCB_HASH(qcbp->paddr); - qcbp->nexthash = ida->hashlist[hashnum]; - ida->hashlist[hashnum] = qcbp; - } else { - printf("ida%d: Can't malloc QCB\n", unit); - } goto gottit; - } else { - /* reached maximum allocation of qcbs - sleep until one is freed */ - tsleep((caddr_t)&ida->freelist, PRIBIO, "idaqcb", 0); - } - } if (qcbp) { - /* qet the qcb from from the (non-empty) free list */ - ida->freelist = qcbp->next; - qcbp->flags = QCB_ACTIVE; - } -gottit: - splx(opri); - -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWQCBS) - printf("ida_get_qcb%d: returns 0x%x\n", unit, qcbp); -#endif - - return (qcbp); -} - - -/* Return a qcb to the free list */ -static void -ida_free_qcb(int unit, qcb_t *qcbp) -{ - unsigned int opri = 0; - struct ida_ctl *ida = idadata[unit]; - -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWQCBS) - printf("ida_free_qcb%d: freeing 0x%x\n", unit, qcbp); -#endif - - opri = splbio(); - - qcbp->next = ida->freelist; - ida->freelist = qcbp; - qcbp->flags = QCB_FREE; - - /* if the free list was empty, wakeup anyone sleeping */ - - if (!qcbp->next) { -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWQCBS) - printf("ida_free_qcb%d: about to wakeup 0x%x queue\n", - unit, &ida->freelist); -#endif - wakeup((caddr_t)&ida->freelist); - } - - splx(opri); -} - -/* Find the ida_qcb having a given physical address */ -qcb_t * -ida_qcb_phys_kv(ida, ida_qcb_phys) -struct ida_ctl *ida; -physaddr_t ida_qcb_phys; -{ - int hash = QCB_HASH(ida_qcb_phys); - qcb_t *qcbp = ida->hashlist[hash]; - - while (qcbp) { - if (qcbp->paddr == ida_qcb_phys) - break; - qcbp = qcbp->nexthash; - } - -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWQCBS) - printf("ida?: ida_qcb_phys_kv(0x%x) = 0x%x\n", ida_qcb_phys, qcbp); -#endif - - return qcbp; -} - -void -ida_queue_buf(int unit, struct buf *bp) -{ - struct ida_drv *drv = id_drive[unit]; - int cntlr = drv->ctl_unit; - qcb_t *qcbp = ida_get_qcb(cntlr); /* may cause us to wait */ - struct ida_ctl *ida = idadata[cntlr]; - unsigned int datalen = bp->b_bcount; - int thiskv = (int)bp->b_data; - physaddr_t thisphys = vtophys(thiskv); - int nsgb = 0; /* number of scatter/gather blocks used */ - struct ida_sgb *sg = &(qcbp->sglist[0]); - - /* fill in the qcb command header */ - - if (PCI_CONTROLLER(ida)) { - qcbp->hdr.priority = 0x00; - qcbp->hdr.flags = 0x24; - } else { - qcbp->hdr.priority = IDA_DEF_PRIORITY; - qcbp->hdr.flags = 0x10; - } - qcbp->hdr.drive = drv->drv_unit; /* logical drive number */ - qcbp->buf = bp; /* the buf this command came from */ - - /* set up the scatter-gather list in the qcb */ - - while ((datalen) && (nsgb < IDA_MAX_SGLEN)) { - int bytes_this_seg = 0; - physaddr_t nextphys; - - /* put in the base address */ - sg->addr = thisphys; - - /* do it at least once */ - nextphys = thisphys; - while ((datalen) && (thisphys == nextphys)) { - int bytes_this_page; - - /* This page is contiguous (physically) with the the last, */ - /* just extend the length */ - - /* how far to the end of the page ... */ - nextphys = (thisphys & (~(PAGESIZ - 1))) + PAGESIZ; - bytes_this_page = nextphys - thisphys; - /* ... or to the end of the data */ - bytes_this_page = min(bytes_this_page, datalen); - bytes_this_seg += bytes_this_page; - datalen -= bytes_this_page; - - /* get ready for the next page */ - thiskv = (thiskv & (~(PAGESIZ - 1))) + PAGESIZ; - if (datalen) - thisphys = vtophys(thiskv); - } - - /* next page isn't contiguous, finish the seg */ - sg->len = bytes_this_seg; - sg++; - nsgb++; - } - - if (datalen) { /* still data => command block too small */ - printf("ida_queue_buf%d: more than %d scatter/gather blocks needed\n", - cntlr, IDA_MAX_SGLEN); - bp->b_error = EIO; - bp->b_flags |= B_ERROR; - biodone(bp); - return; - } - - /* fill-in the I/O request block */ - - qcbp->req.error = 0; - qcbp->req.next = 0; - qcbp->req.blkno = bp->b_pblkno; - qcbp->req.bcount = bp->b_bcount >> 9; - qcbp->req.sgcount = nsgb; - qcbp->req.command = (bp->b_flags & B_READ ? IDA_READ_DATA : IDA_WRITE_DATA); - -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWQCBS) { - printf("ida_rw%d: queuing:\n", cntlr); - ida_print_qcb(qcbp); - } -#endif - - /* queue for submission to the controller */ - ida_enqueue(cntlr, qcbp); -} - - -void -ida_start(int cntlr) -{ - struct ida_ctl *ida = idadata[cntlr]; - qcb_t *qcbp; - int count = 0; - int opri = splbio(); - - if (!ida->send_next) { /* check there is a job in the queue */ - splx(opri); - return; - } - - if (PCI_CONTROLLER(ida)) { - ida_pci_reg_t *reg = (ida_pci_reg_t *)ida->iobase; - u_int fifo = reg->initiate_fifo; - if (fifo == 1) { - splx(opri); - return; /* not sent - must try again later */ - } - - /* submit upto 16 jobs at once into the initiate fifo */ - while (count < 16 && (fifo = reg->initiate_fifo) != 1 - && (qcbp = ida_dequeue(cntlr))) { - reg->initiate_fifo = qcbp->paddr; - qcbp->flags = QCB_SENT; - ida->inside++; - count++; - } - } else { - - if (!IDA_CHAN_CLEAR(ida)) { - IDA_ENABLE_CHAN(ida); - splx(opri); - return; - } - - qcbp = ida_dequeue(cntlr); - -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWQCBS) - printf("ida%d: ida_start: sending 0x%x\n", cntlr, qcbp); -#endif - - IDA_SET_EBELL_I(ida, 2); - IDA_SET_SUB_ADDR(ida, qcbp->paddr); /* physical address of this qcb */ - IDA_SET_SUB_LEN(ida, sizeof(qcb_t)); - IDA_SET_LBELL_I(ida, 1); - - qcbp->flags = QCB_SENT; - ida->inside++; - count++; - } - - if (ida->inside > ida->max_inside) { - ida->max_inside = ida->inside; /* new maximum */ - splx(opri); - -#ifdef IDADEBUG - if (ida_debug & IDA_MAXQCBS) - printf("ida%d: qcbs %d/%d\n", cntlr, ida->inside, ida->num_qcbs); -#endif - } else { - splx(opri); - } - -#ifdef IDADEBUG - if ((ida_debug & IDA_SHOWSUBS) && count > 1) - printf("ida%d: %d jobs submitted (queue %s).\n", - cntlr, count, ida->send_next ? "not emptied" : "emptied"); -#endif -} - -void -ida_newqueue(int cntlr) -{ - struct ida_ctl *ida = idadata[cntlr]; - ida->send_next = 0; - ida->send_last = 0; -} - -qcb_t * -ida_dequeue(int cntlr) -{ - struct ida_ctl *ida = idadata[cntlr]; - qcb_t *qcbp = ida->send_next; /* who is next? */ - - if (qcbp) { /* queue is not empty */ - qcb_t* nextp = qcbp->next; - - if (nextp) { /* more than one element in the queue */ - nextp->last = 0; /* we are the first */ - ida->send_next = nextp; /* hence first to go */ - } else { /* exactly one element in the queue */ - ida->send_last = ida->send_next = 0; - } - } - - return qcbp; -} - -static void -ida_enqueue(int cntlr, qcb_t *qcbp) -{ - struct ida_ctl *ida = idadata[cntlr]; - qcb_t *lastp = ida->send_last; /* who is last? */ - int opri = splbio(); - - if (lastp) { /* if the queue is not empty */ - lastp->next = qcbp; /* then we go after the last */ - } else { /* if the queue was empty */ - ida->send_next = qcbp; /* then we go next */ - } - - qcbp->last = lastp; /* we follow the last */ - qcbp->next = 0; /* and nothing follows us */ - - ida->send_last = qcbp; /* we go last */ - splx(opri); -} - -void -idaintr(void *arg) -{ - int cntlr = (int)arg; - qcb_t *qcbp; - struct ida_ctl *ida = idadata[cntlr]; - u_char status; - physaddr_t paddr, paddr1; /* physical address of the qcb */ - int offset; /* qcb offset */ - u_char cstat; /* job status */ - - if (PCI_CONTROLLER(ida)) { /*pci:*/ - ida_pci_reg_t *reg = (ida_pci_reg_t *)ida->iobase; - int status = reg->status; -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWINTS) - printf("ida%d: idaintr: status=%x (before complete)\n" - , cntlr, status); -#endif - while (status & IDA_PCI_PENDING) { - paddr1 = reg->complete_fifo; - paddr = paddr1 & ~3; - qcbp = ida_qcb_phys_kv(ida, paddr); -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWQCBS) { - printf("ida%d: idaintr: qcb(%x) completed\n", cntlr, qcbp); - ida_print_qcb(qcbp); - } -#endif - if (qcbp) { - if (qcbp->req.error & 3) ida_soft_errors++; - ida_done(cntlr, qcbp, (qcbp->req.error>>2) ? JOB_FAILURE : JOB_SUCCESS); - } else { - printf("ida%d: idaintr: completion (%x) ignored\n", cntlr, paddr1); - } - status = reg->status; - } -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWINTS) - printf("ida%d: idaintr: status=%x (before initiate)\n" - , cntlr, status); -#endif - if (status & IDA_PCI_READY) { - ida_start(cntlr); - } - } else { - while(1) { - status = IDA_READ_EBELL_I(ida) & IDA_READ_EBELL_E(ida); - -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWINTS) - printf("ida%d: idaintr: status = 0x%x\n", cntlr, status); -#endif - - if ((status & (BMIC_DATA_READY | BMIC_CHAN_CLEAR)) == 0) break; - - if (status & BMIC_DATA_READY) { /* data ready */ - int job_status; - - if (IDA_READ_LBELL_I(ida) & JOB_ABORTED) { - printf("ida%d: idaintr: status:%x local channel should be busy! ", - cntlr, status); - } - - paddr = IDA_GET_COM_ADDR(ida); - offset = IDA_GET_COM_OFFSET(ida); - cstat = IDA_GET_COM_STATUS(ida); - - /* acknowledge interrupt */ - IDA_ACK_CMD_COM(ida); - - /* determine which job completed */ - qcbp = ida_qcb_phys_kv(ida, paddr); - - /* analyse the job status code */ - if (cstat & IDA_COMPL_OK) { - job_status = JOB_SUCCESS; - } else { - printf("ida%d: idaintr: return code %x=", cntlr, cstat); - if (cstat & IDA_NON_FATAL) printf("recoverable error! "); - if (cstat & IDA_FATAL) printf("fatal error! "); - if (cstat & IDA_ABORTED) printf("aborted! "); - if (cstat & IDA_INVAL_REQ) printf("invalid request block! "); - if (cstat & IDA_INVAL_LIST) printf("cmd list error! "); - if (cstat & IDA_AARGH_LIST) printf("really bad cmd list! "); - job_status = JOB_FAILURE; - } - -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWQCBS) { - printf("ida%d: idaintr: qcb(%x) returned.\n", cntlr, qcbp); - ida_print_qcb(qcbp); - } -#endif - - ida_done(cntlr, qcbp, job_status); /* retire the job */ - ida_start(cntlr); /* send the controller another job */ - } - - if (status & BMIC_CHAN_CLEAR) { - /* channel not clear */ - IDA_DISABLE_CHAN(ida); - ida_start(cntlr); /* send the controller another job */ - } - } /*eisa*/ - } -} - - -int -ida_poll(cntlr, wait) -int cntlr; -int wait; /* delay in milliseconds */ -{ - struct ida_ctl *ctlp = idadata[cntlr]; - - if (PCI_CONTROLLER(ctlp)) { - printf("ida%d: error: ida_poll called on a PCI controller\n", cntlr); - return EIO; - } - - while (wait-- > 0) { - if (IDA_DATA_READY(ctlp)) { - ctlp->com_addr = IDA_GET_COM_ADDR(ctlp); - ctlp->com_offset = IDA_GET_COM_OFFSET(ctlp); - ctlp->com_status = IDA_GET_COM_STATUS(ctlp); - IDA_ACK_CMD_COM(ctlp); - - if (0) printf("ida_poll: addr=0x%08x off=0x%04x cmdstatus=0x%02x\n", - (u_int)ctlp->com_addr, - ctlp->com_offset, - ctlp->com_status); - - return 0; - } - DELAY(1000); - } - - printf("ida%d: board not responding\n", cntlr); - return EIO; -} - - -int -ida_submit(int cntlr, qcb_t *qcbp, int size) -{ - struct ida_ctl *ida = idadata[cntlr]; - int s = splbio(); - - if (PCI_CONTROLLER(ida)) { - ida_pci_reg_t *reg = (ida_pci_reg_t *)ida->iobase; - u_int fifo = reg->initiate_fifo; - if (fifo == 1) { - splx(s); -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWSUBS) - printf("ida%d: ida_submit(%x): fifo=1 not submitting\n", - cntlr, qcbp, fifo); -#endif - return(1); /* not sent - must try again later */ - } -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWSUBS) - printf("ida%d: ida_submit(%x): fifo=%d submitting\n", cntlr, qcbp, fifo); -#endif - reg->initiate_fifo = qcbp->paddr; - - } else { - if (!IDA_CHAN_CLEAR(ida)) { - IDA_ENABLE_CHAN(ida); - splx(s); - return(1); /* not sent - must try again later */ - } - - IDA_SET_EBELL_I(ida, 2); - IDA_SET_SUB_ADDR(ida, qcbp->paddr); /* physical address of this qcb */ - IDA_SET_SUB_LEN(ida, size); - IDA_SET_LBELL_I(ida, 1); - } - - splx(s); - return(0); /* sent */ -} - -static -void -ida_empty_pci_complete_fifo(int cntlr, ida_pci_reg_t *reg) { - u_long paddr; - if (paddr = reg->complete_fifo) { - int count = 200; - while (paddr && count > 0) { - printf("ida%d: command completion discarded (0x%x).\n", - cntlr, (u_int)paddr); - if (paddr = reg->complete_fifo) { - DELAY(100); - count--; - } - } - } - return; -} - -static -u_long -ida_complete_pci_command(int cntlr, ida_pci_reg_t *reg) { - int count = 1; - u_long paddr; - while (count < 1000000) { - if (reg->status & IDA_PCI_PENDING) { - if ((paddr = reg->complete_fifo) == 0) - printf("ida%d: ida_complete_pci_command: zero address returned.\n", - cntlr); - else - return paddr; - } - DELAY(10); - } - return 1; -} - -static -int -ida_submit_wait(int cntlr, qcb_t *qcbp, int size) -{ - struct ida_ctl *ida = idadata[cntlr]; - - if (PCI_CONTROLLER(ida)) { - ida_pci_reg_t *reg = (ida_pci_reg_t *)ida->iobase; - int i, count = 1000000; - u_long paddr; - ida_empty_pci_complete_fifo(cntlr, reg); - reg->interrupt = IDA_PCI_DISABLE_INTS; - while (count > 0 && (i = reg->initiate_fifo) > 16) { - DELAY(10); - count--; - } - if (count == 0) { - printf("ida%d: ida_pci_submit_wait: fifo failed to clear - controller has failed.\n", cntlr); - return 1; - } - reg->initiate_fifo = qcbp->paddr; - paddr = ida_complete_pci_command(cntlr, reg); - if (paddr == 1) { - printf("ida%d: ida_pci_submit_wait timeout. No command list returned.\n", - cntlr); - return 1; - } - if (paddr != qcbp->paddr) { - printf("ida%d: ida_pci_submit_wait error. Invalid command list returned.\n", - cntlr); - return 1; - } - if (qcbp->req.error != 0xfe && qcbp->req.error == 0x40) { - printf("ida%d: ida_pci_submit_wait: Job error.\n", cntlr); - return 1; - } - } else { - if (ida_submit(cntlr, qcbp, size)) { - return 1; - } - if (ida_poll(cntlr, 10)) { - return 1; - } - } - - return 0; /* sent */ -} - - -void -ida_done(int cntlr, qcb_t *qcbp, int state) -{ - struct buf *bp = qcbp->buf; - - if (idadata[cntlr] > 0) - idadata[cntlr]->inside--; /* one less job inside the controller */ - - if (state != JOB_SUCCESS) { -#ifdef IDADEBUG - if (ida_debug & IDA_SHOWMISC) - printf("ida%d: ida_done: job failed 0x%x\n", cntlr, state); -#endif - /* we had a problem */ - bp->b_error = EIO; - bp->b_flags |= B_ERROR; - } else { - struct ida_drv *drv = id_drive[dkunit(bp->b_dev)]; - bp->b_resid = 0; - /* Update device stats */ - devstat_end_transaction(&drv->dk_stats, - bp->b_bcount - bp->b_resid, - DEVSTAT_TAG_NONE, - (bp->b_flags & B_READ) ? DEVSTAT_READ : DEVSTAT_WRITE); - } - - ida_free_qcb(cntlr, qcbp); - biodone(bp); -} - - -int -idsize(dev_t dev) -{ - int unit = dkunit(dev); - struct ida_drv *drv; - - if (unit >= NID) - return (-1); - - drv = id_drive[unit]; - if (!drv || !(drv->flags & ID_INIT)) - return (-1); - - return (dssize(dev, &drv->slices, idopen, idclose)); -} - -/* - * dump all of physical memory into the partition specified, starting - * at offset 'dumplo' into the partition. - */ -int -iddump(dev_t dev) -{ /* dump core after a system crash */ - return 0; /* XXX */ -} - -static id_devsw_installed = 0; - -static void -id_drvinit(void *unused) -{ - if( ! id_devsw_installed ) { - cdevsw_add(&id_cdevsw); - id_devsw_installed = 1; - } -} - -SYSINIT(iddev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+ID_CDMAJ,id_drvinit,NULL) - -#ifdef IDADEBUG -void -ida_print_qcb(qcb_t *qcbp) -{ - int i; - printf("qcb(%x): drive=%x priority=%x flags=%x sgcount=%d\n" - ,qcbp - ,qcbp->hdr.drive - ,qcbp->hdr.priority - ,qcbp->hdr.flags - ,qcbp->req.sgcount); - printf("qcb(%x): next=%x command=%x error=%x blkno=%x bcount=%x\n" - ,qcbp - ,qcbp->req.next - ,qcbp->req.command - ,qcbp->req.error - ,qcbp->req.blkno - ,qcbp->req.bcount); - for (i=0; i < qcbp->req.sgcount; i++) - printf("qcb(%x): %x len=%x addr=%x\n" - ,qcbp - ,i - ,qcbp->sglist[i].len - ,qcbp->sglist[i].addr); -} - -void -ida_print_active_qcb(int cntlr) -{ - struct ida_ctl *ida = idadata[cntlr]; - int i; - - for (i=0; i < QCB_HASH_SIZE; i++) { - qcb_t *qcbp = ida->hashlist[i]; - while (qcbp) { - if (qcbp->flags != QCB_FREE) { - ida_print_qcb(qcbp); - } - qcbp = qcbp->nexthash; - } - } -} -#endif /*IDADEBUG */ - |
