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freebsd-nq/sys/dev/ata/ata-all.c
Alexander Motin bda55b6adb Set of legacy mode SATA enchancements: 
- Implement proper combined mode decoding for Intel controllers to properly
identify SATA and PATA channels and associate ATA channels with SATA ports.
This fixes wrong reporting and in some cases hard resets to wrong SATA ports.
- Improve SATA registers support to handle hot-plug events and potentially
interface errors. For ICH5/6300ESB chipsets these registers accessible via
PCI config space. For later ones they may be accessible via PCI BAR(5).
- For controllers not generating interrupts on hot-plug events, implement
periodic status polling. Use it to detect hot-plug on Intel and VIA
controllers. Same probably could also be used for Serverworks and SIS.
2010-10-18 11:30:13 +00:00

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/*-
* Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
* 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, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_ata.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ata.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/endian.h>
#include <sys/ctype.h>
#include <sys/conf.h>
#include <sys/bus.h>
#include <sys/bio.h>
#include <sys/malloc.h>
#include <sys/sysctl.h>
#include <sys/sema.h>
#include <sys/taskqueue.h>
#include <vm/uma.h>
#include <machine/stdarg.h>
#include <machine/resource.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <dev/ata/ata-all.h>
#include <dev/pci/pcivar.h>
#include <ata_if.h>
#ifdef ATA_CAM
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_sim.h>
#include <cam/cam_xpt_sim.h>
#include <cam/cam_debug.h>
#endif
#ifndef ATA_CAM
/* device structure */
static d_ioctl_t ata_ioctl;
static struct cdevsw ata_cdevsw = {
.d_version = D_VERSION,
.d_flags = D_NEEDGIANT, /* we need this as newbus isn't mpsafe */
.d_ioctl = ata_ioctl,
.d_name = "ata",
};
#endif
/* prototypes */
#ifndef ATA_CAM
static void ata_boot_attach(void);
static device_t ata_add_child(device_t, struct ata_device *, int);
#else
static void ataaction(struct cam_sim *sim, union ccb *ccb);
static void atapoll(struct cam_sim *sim);
#endif
static void ata_conn_event(void *, int);
static void bswap(int8_t *, int);
static void btrim(int8_t *, int);
static void bpack(int8_t *, int8_t *, int);
static void ata_interrupt_locked(void *data);
static void ata_periodic_poll(void *data);
/* global vars */
MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer");
int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL;
struct intr_config_hook *ata_delayed_attach = NULL;
devclass_t ata_devclass;
uma_zone_t ata_request_zone;
uma_zone_t ata_composite_zone;
int ata_wc = 1;
int ata_setmax = 0;
int ata_dma_check_80pin = 1;
/* local vars */
static int ata_dma = 1;
static int atapi_dma = 1;
/* sysctl vars */
SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0,
"ATA disk DMA mode control");
TUNABLE_INT("hw.ata.ata_dma_check_80pin", &ata_dma_check_80pin);
SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma_check_80pin,
CTLFLAG_RW, &ata_dma_check_80pin, 1,
"Check for 80pin cable before setting ATA DMA mode");
TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma);
SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0,
"ATAPI device DMA mode control");
TUNABLE_INT("hw.ata.wc", &ata_wc);
SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0,
"ATA disk write caching");
TUNABLE_INT("hw.ata.setmax", &ata_setmax);
SYSCTL_INT(_hw_ata, OID_AUTO, setmax, CTLFLAG_RDTUN, &ata_setmax, 0,
"ATA disk set max native address");
/*
* newbus device interface related functions
*/
int
ata_probe(device_t dev)
{
return 0;
}
int
ata_attach(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
int error, rid;
#ifdef ATA_CAM
struct cam_devq *devq;
const char *res;
char buf[64];
int i, mode;
#endif
/* check that we have a virgin channel to attach */
if (ch->r_irq)
return EEXIST;
/* initialize the softc basics */
ch->dev = dev;
ch->state = ATA_IDLE;
bzero(&ch->state_mtx, sizeof(struct mtx));
mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF);
bzero(&ch->queue_mtx, sizeof(struct mtx));
mtx_init(&ch->queue_mtx, "ATA queue lock", NULL, MTX_DEF);
TAILQ_INIT(&ch->ata_queue);
TASK_INIT(&ch->conntask, 0, ata_conn_event, dev);
#ifdef ATA_CAM
for (i = 0; i < 16; i++) {
ch->user[i].mode = 0;
snprintf(buf, sizeof(buf), "dev%d.mode", i);
if (resource_string_value(device_get_name(dev),
device_get_unit(dev), buf, &res) == 0)
mode = ata_str2mode(res);
else if (resource_string_value(device_get_name(dev),
device_get_unit(dev), "mode", &res) == 0)
mode = ata_str2mode(res);
else
mode = -1;
if (mode >= 0)
ch->user[i].mode = mode;
if (ch->flags & ATA_SATA)
ch->user[i].bytecount = 8192;
else
ch->user[i].bytecount = MAXPHYS;
ch->curr[i] = ch->user[i];
}
#endif
callout_init(&ch->poll_callout, 1);
/* reset the controller HW, the channel and device(s) */
while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
pause("ataatch", 1);
#ifndef ATA_CAM
ATA_RESET(dev);
#endif
ATA_LOCKING(dev, ATA_LF_UNLOCK);
/* allocate DMA resources if DMA HW present*/
if (ch->dma.alloc)
ch->dma.alloc(dev);
/* setup interrupt delivery */
rid = ATA_IRQ_RID;
ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_SHAREABLE | RF_ACTIVE);
if (!ch->r_irq) {
device_printf(dev, "unable to allocate interrupt\n");
return ENXIO;
}
if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL,
ata_interrupt, ch, &ch->ih))) {
bus_release_resource(dev, SYS_RES_IRQ, rid, ch->r_irq);
device_printf(dev, "unable to setup interrupt\n");
return error;
}
if (ch->flags & ATA_PERIODIC_POLL)
callout_reset(&ch->poll_callout, hz, ata_periodic_poll, ch);
#ifndef ATA_CAM
/* probe and attach devices on this channel unless we are in early boot */
if (!ata_delayed_attach)
ata_identify(dev);
return (0);
#else
mtx_lock(&ch->state_mtx);
/* Create the device queue for our SIM. */
devq = cam_simq_alloc(1);
if (devq == NULL) {
device_printf(dev, "Unable to allocate simq\n");
error = ENOMEM;
goto err1;
}
/* Construct SIM entry */
ch->sim = cam_sim_alloc(ataaction, atapoll, "ata", ch,
device_get_unit(dev), &ch->state_mtx, 1, 0, devq);
if (ch->sim == NULL) {
device_printf(dev, "unable to allocate sim\n");
cam_simq_free(devq);
error = ENOMEM;
goto err1;
}
if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) {
device_printf(dev, "unable to register xpt bus\n");
error = ENXIO;
goto err2;
}
if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
device_printf(dev, "unable to create path\n");
error = ENXIO;
goto err3;
}
mtx_unlock(&ch->state_mtx);
return (0);
err3:
xpt_bus_deregister(cam_sim_path(ch->sim));
err2:
cam_sim_free(ch->sim, /*free_devq*/TRUE);
ch->sim = NULL;
err1:
bus_release_resource(dev, SYS_RES_IRQ, rid, ch->r_irq);
mtx_unlock(&ch->state_mtx);
if (ch->flags & ATA_PERIODIC_POLL)
callout_drain(&ch->poll_callout);
return (error);
#endif
}
int
ata_detach(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
#ifndef ATA_CAM
device_t *children;
int nchildren, i;
#endif
/* check that we have a valid channel to detach */
if (!ch->r_irq)
return ENXIO;
/* grap the channel lock so no new requests gets launched */
mtx_lock(&ch->state_mtx);
ch->state |= ATA_STALL_QUEUE;
mtx_unlock(&ch->state_mtx);
if (ch->flags & ATA_PERIODIC_POLL)
callout_drain(&ch->poll_callout);
#ifndef ATA_CAM
/* detach & delete all children */
if (!device_get_children(dev, &children, &nchildren)) {
for (i = 0; i < nchildren; i++)
if (children[i])
device_delete_child(dev, children[i]);
free(children, M_TEMP);
}
#endif
taskqueue_drain(taskqueue_thread, &ch->conntask);
#ifdef ATA_CAM
mtx_lock(&ch->state_mtx);
xpt_async(AC_LOST_DEVICE, ch->path, NULL);
xpt_free_path(ch->path);
xpt_bus_deregister(cam_sim_path(ch->sim));
cam_sim_free(ch->sim, /*free_devq*/TRUE);
ch->sim = NULL;
mtx_unlock(&ch->state_mtx);
#endif
/* release resources */
bus_teardown_intr(dev, ch->r_irq, ch->ih);
bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
ch->r_irq = NULL;
/* free DMA resources if DMA HW present*/
if (ch->dma.free)
ch->dma.free(dev);
mtx_destroy(&ch->state_mtx);
mtx_destroy(&ch->queue_mtx);
return 0;
}
static void
ata_conn_event(void *context, int dummy)
{
device_t dev = (device_t)context;
#ifdef ATA_CAM
struct ata_channel *ch = device_get_softc(dev);
union ccb *ccb;
mtx_lock(&ch->state_mtx);
if (ch->sim == NULL) {
mtx_unlock(&ch->state_mtx);
return;
}
ata_reinit(dev);
if ((ccb = xpt_alloc_ccb_nowait()) == NULL)
return;
if (xpt_create_path(&ccb->ccb_h.path, NULL,
cam_sim_path(ch->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_free_ccb(ccb);
return;
}
xpt_rescan(ccb);
mtx_unlock(&ch->state_mtx);
#else
ata_reinit(dev);
#endif
}
int
ata_reinit(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
struct ata_request *request;
#ifndef ATA_CAM
device_t *children;
int nchildren, i;
/* check that we have a valid channel to reinit */
if (!ch || !ch->r_irq)
return ENXIO;
if (bootverbose)
device_printf(dev, "reiniting channel ..\n");
/* poll for locking the channel */
while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
pause("atarini", 1);
/* catch eventual request in ch->running */
mtx_lock(&ch->state_mtx);
if (ch->state & ATA_STALL_QUEUE) {
/* Recursive reinits and reinits during detach prohobited. */
mtx_unlock(&ch->state_mtx);
return (ENXIO);
}
if ((request = ch->running))
callout_stop(&request->callout);
ch->running = NULL;
/* unconditionally grap the channel lock */
ch->state |= ATA_STALL_QUEUE;
mtx_unlock(&ch->state_mtx);
/* reset the controller HW, the channel and device(s) */
ATA_RESET(dev);
/* reinit the children and delete any that fails */
if (!device_get_children(dev, &children, &nchildren)) {
mtx_lock(&Giant); /* newbus suckage it needs Giant */
for (i = 0; i < nchildren; i++) {
/* did any children go missing ? */
if (children[i] && device_is_attached(children[i]) &&
ATA_REINIT(children[i])) {
/*
* if we had a running request and its device matches
* this child we need to inform the request that the
* device is gone.
*/
if (request && request->dev == children[i]) {
request->result = ENXIO;
device_printf(request->dev, "FAILURE - device detached\n");
/* if not timeout finish request here */
if (!(request->flags & ATA_R_TIMEOUT))
ata_finish(request);
request = NULL;
}
device_delete_child(dev, children[i]);
}
}
free(children, M_TEMP);
mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
}
/* if we still have a good request put it on the queue again */
if (request && !(request->flags & ATA_R_TIMEOUT)) {
device_printf(request->dev,
"WARNING - %s requeued due to channel reset",
ata_cmd2str(request));
if (!(request->flags & (ATA_R_ATAPI | ATA_R_CONTROL)))
printf(" LBA=%ju", request->u.ata.lba);
printf("\n");
request->flags |= ATA_R_REQUEUE;
ata_queue_request(request);
}
/* we're done release the channel for new work */
mtx_lock(&ch->state_mtx);
ch->state = ATA_IDLE;
mtx_unlock(&ch->state_mtx);
ATA_LOCKING(dev, ATA_LF_UNLOCK);
/* Add new children. */
/* ata_identify(dev); */
if (bootverbose)
device_printf(dev, "reinit done ..\n");
/* kick off requests on the queue */
ata_start(dev);
#else
xpt_freeze_simq(ch->sim, 1);
if ((request = ch->running)) {
ch->running = NULL;
if (ch->state == ATA_ACTIVE)
ch->state = ATA_IDLE;
callout_stop(&request->callout);
if (ch->dma.unload)
ch->dma.unload(request);
request->result = ERESTART;
ata_cam_end_transaction(dev, request);
}
/* reset the controller HW, the channel and device(s) */
ATA_RESET(dev);
/* Tell the XPT about the event */
xpt_async(AC_BUS_RESET, ch->path, NULL);
xpt_release_simq(ch->sim, TRUE);
#endif
return(0);
}
int
ata_suspend(device_t dev)
{
struct ata_channel *ch;
/* check for valid device */
if (!dev || !(ch = device_get_softc(dev)))
return ENXIO;
if (ch->flags & ATA_PERIODIC_POLL)
callout_drain(&ch->poll_callout);
#ifdef ATA_CAM
mtx_lock(&ch->state_mtx);
xpt_freeze_simq(ch->sim, 1);
while (ch->state != ATA_IDLE)
msleep(ch, &ch->state_mtx, PRIBIO, "atasusp", hz/100);
mtx_unlock(&ch->state_mtx);
#else
/* wait for the channel to be IDLE or detached before suspending */
while (ch->r_irq) {
mtx_lock(&ch->state_mtx);
if (ch->state == ATA_IDLE) {
ch->state = ATA_ACTIVE;
mtx_unlock(&ch->state_mtx);
break;
}
mtx_unlock(&ch->state_mtx);
tsleep(ch, PRIBIO, "atasusp", hz/10);
}
ATA_LOCKING(dev, ATA_LF_UNLOCK);
#endif
return(0);
}
int
ata_resume(device_t dev)
{
struct ata_channel *ch;
int error;
/* check for valid device */
if (!dev || !(ch = device_get_softc(dev)))
return ENXIO;
#ifdef ATA_CAM
mtx_lock(&ch->state_mtx);
error = ata_reinit(dev);
xpt_release_simq(ch->sim, TRUE);
mtx_unlock(&ch->state_mtx);
#else
/* reinit the devices, we dont know what mode/state they are in */
error = ata_reinit(dev);
/* kick off requests on the queue */
ata_start(dev);
#endif
if (ch->flags & ATA_PERIODIC_POLL)
callout_reset(&ch->poll_callout, hz, ata_periodic_poll, ch);
return error;
}
void
ata_interrupt(void *data)
{
#ifdef ATA_CAM
struct ata_channel *ch = (struct ata_channel *)data;
mtx_lock(&ch->state_mtx);
#endif
ata_interrupt_locked(data);
#ifdef ATA_CAM
mtx_unlock(&ch->state_mtx);
#endif
}
static void
ata_interrupt_locked(void *data)
{
struct ata_channel *ch = (struct ata_channel *)data;
struct ata_request *request;
#ifndef ATA_CAM
mtx_lock(&ch->state_mtx);
#endif
do {
/* ignore interrupt if its not for us */
if (ch->hw.status && !ch->hw.status(ch->dev))
break;
/* do we have a running request */
if (!(request = ch->running))
break;
ATA_DEBUG_RQ(request, "interrupt");
/* safetycheck for the right state */
if (ch->state == ATA_IDLE) {
device_printf(request->dev, "interrupt on idle channel ignored\n");
break;
}
/*
* we have the HW locks, so end the transaction for this request
* if it finishes immediately otherwise wait for next interrupt
*/
if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
ch->running = NULL;
if (ch->state == ATA_ACTIVE)
ch->state = ATA_IDLE;
#ifdef ATA_CAM
ata_cam_end_transaction(ch->dev, request);
#else
mtx_unlock(&ch->state_mtx);
ATA_LOCKING(ch->dev, ATA_LF_UNLOCK);
ata_finish(request);
#endif
return;
}
} while (0);
#ifndef ATA_CAM
mtx_unlock(&ch->state_mtx);
#endif
}
static void
ata_periodic_poll(void *data)
{
struct ata_channel *ch = (struct ata_channel *)data;
callout_reset(&ch->poll_callout, hz, ata_periodic_poll, ch);
ata_interrupt(ch);
}
void
ata_print_cable(device_t dev, u_int8_t *who)
{
device_printf(dev,
"DMA limited to UDMA33, %s found non-ATA66 cable\n", who);
}
int
ata_check_80pin(device_t dev, int mode)
{
struct ata_device *atadev = device_get_softc(dev);
if (!ata_dma_check_80pin) {
if (bootverbose)
device_printf(dev, "Skipping 80pin cable check\n");
return mode;
}
if (mode > ATA_UDMA2 && !(atadev->param.hwres & ATA_CABLE_ID)) {
ata_print_cable(dev, "device");
mode = ATA_UDMA2;
}
return mode;
}
void
ata_setmode(device_t dev)
{
struct ata_channel *ch = device_get_softc(device_get_parent(dev));
struct ata_device *atadev = device_get_softc(dev);
int error, mode, pmode;
mode = atadev->mode;
do {
pmode = mode = ata_limit_mode(dev, mode, ATA_DMA_MAX);
mode = ATA_SETMODE(device_get_parent(dev), atadev->unit, mode);
if ((ch->flags & (ATA_CHECKS_CABLE | ATA_SATA)) == 0)
mode = ata_check_80pin(dev, mode);
} while (pmode != mode); /* Interate till successfull negotiation. */
error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
if (bootverbose)
device_printf(dev, "%ssetting %s\n",
(error) ? "FAILURE " : "", ata_mode2str(mode));
atadev->mode = mode;
}
/*
* device related interfaces
*/
#ifndef ATA_CAM
static int
ata_ioctl(struct cdev *dev, u_long cmd, caddr_t data,
int32_t flag, struct thread *td)
{
device_t device, *children;
struct ata_ioc_devices *devices = (struct ata_ioc_devices *)data;
int *value = (int *)data;
int i, nchildren, error = ENOTTY;
switch (cmd) {
case IOCATAGMAXCHANNEL:
/* In case we have channel 0..n this will return n+1. */
*value = devclass_get_maxunit(ata_devclass);
error = 0;
break;
case IOCATAREINIT:
if (*value >= devclass_get_maxunit(ata_devclass) ||
!(device = devclass_get_device(ata_devclass, *value)) ||
!device_is_attached(device))
return ENXIO;
error = ata_reinit(device);
break;
case IOCATAATTACH:
if (*value >= devclass_get_maxunit(ata_devclass) ||
!(device = devclass_get_device(ata_devclass, *value)) ||
!device_is_attached(device))
return ENXIO;
error = DEVICE_ATTACH(device);
break;
case IOCATADETACH:
if (*value >= devclass_get_maxunit(ata_devclass) ||
!(device = devclass_get_device(ata_devclass, *value)) ||
!device_is_attached(device))
return ENXIO;
error = DEVICE_DETACH(device);
break;
case IOCATADEVICES:
if (devices->channel >= devclass_get_maxunit(ata_devclass) ||
!(device = devclass_get_device(ata_devclass, devices->channel)) ||
!device_is_attached(device))
return ENXIO;
bzero(devices->name[0], 32);
bzero(&devices->params[0], sizeof(struct ata_params));
bzero(devices->name[1], 32);
bzero(&devices->params[1], sizeof(struct ata_params));
if (!device_get_children(device, &children, &nchildren)) {
for (i = 0; i < nchildren; i++) {
if (children[i] && device_is_attached(children[i])) {
struct ata_device *atadev = device_get_softc(children[i]);
if (atadev->unit == ATA_MASTER) { /* XXX SOS PM */
strncpy(devices->name[0],
device_get_nameunit(children[i]), 32);
bcopy(&atadev->param, &devices->params[0],
sizeof(struct ata_params));
}
if (atadev->unit == ATA_SLAVE) { /* XXX SOS PM */
strncpy(devices->name[1],
device_get_nameunit(children[i]), 32);
bcopy(&atadev->param, &devices->params[1],
sizeof(struct ata_params));
}
}
}
free(children, M_TEMP);
error = 0;
}
else
error = ENODEV;
break;
default:
if (ata_raid_ioctl_func)
error = ata_raid_ioctl_func(cmd, data);
}
return error;
}
#endif
int
ata_device_ioctl(device_t dev, u_long cmd, caddr_t data)
{
struct ata_device *atadev = device_get_softc(dev);
struct ata_channel *ch = device_get_softc(device_get_parent(dev));
struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data;
struct ata_params *params = (struct ata_params *)data;
int *mode = (int *)data;
struct ata_request *request;
caddr_t buf;
int error;
switch (cmd) {
case IOCATAREQUEST:
if (ioc_request->count >
(ch->dma.max_iosize ? ch->dma.max_iosize : DFLTPHYS)) {
return (EFBIG);
}
if (!(buf = malloc(ioc_request->count, M_ATA, M_NOWAIT))) {
return ENOMEM;
}
if (!(request = ata_alloc_request())) {
free(buf, M_ATA);
return ENOMEM;
}
request->dev = atadev->dev;
if (ioc_request->flags & ATA_CMD_WRITE) {
error = copyin(ioc_request->data, buf, ioc_request->count);
if (error) {
free(buf, M_ATA);
ata_free_request(request);
return error;
}
}
if (ioc_request->flags & ATA_CMD_ATAPI) {
request->flags = ATA_R_ATAPI;
bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16);
}
else {
request->u.ata.command = ioc_request->u.ata.command;
request->u.ata.feature = ioc_request->u.ata.feature;
request->u.ata.lba = ioc_request->u.ata.lba;
request->u.ata.count = ioc_request->u.ata.count;
}
request->timeout = ioc_request->timeout;
request->data = buf;
request->bytecount = ioc_request->count;
request->transfersize = request->bytecount;
if (ioc_request->flags & ATA_CMD_CONTROL)
request->flags |= ATA_R_CONTROL;
if (ioc_request->flags & ATA_CMD_READ)
request->flags |= ATA_R_READ;
if (ioc_request->flags & ATA_CMD_WRITE)
request->flags |= ATA_R_WRITE;
ata_queue_request(request);
if (request->flags & ATA_R_ATAPI) {
bcopy(&request->u.atapi.sense, &ioc_request->u.atapi.sense,
sizeof(struct atapi_sense));
}
else {
ioc_request->u.ata.command = request->u.ata.command;
ioc_request->u.ata.feature = request->u.ata.feature;
ioc_request->u.ata.lba = request->u.ata.lba;
ioc_request->u.ata.count = request->u.ata.count;
}
ioc_request->error = request->result;
if (ioc_request->flags & ATA_CMD_READ)
error = copyout(buf, ioc_request->data, ioc_request->count);
else
error = 0;
free(buf, M_ATA);
ata_free_request(request);
return error;
case IOCATAGPARM:
ata_getparam(atadev, 0);
bcopy(&atadev->param, params, sizeof(struct ata_params));
return 0;
case IOCATASMODE:
atadev->mode = *mode;
ata_setmode(dev);
return 0;
case IOCATAGMODE:
*mode = atadev->mode |
(ATA_GETREV(device_get_parent(dev), atadev->unit) << 8);
return 0;
case IOCATASSPINDOWN:
atadev->spindown = *mode;
return 0;
case IOCATAGSPINDOWN:
*mode = atadev->spindown;
return 0;
default:
return ENOTTY;
}
}
#ifndef ATA_CAM
static void
ata_boot_attach(void)
{
struct ata_channel *ch;
int ctlr;
mtx_lock(&Giant); /* newbus suckage it needs Giant */
/* kick of probe and attach on all channels */
for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
if ((ch = devclass_get_softc(ata_devclass, ctlr))) {
ata_identify(ch->dev);
}
}
/* release the hook that got us here, we are only needed once during boot */
if (ata_delayed_attach) {
config_intrhook_disestablish(ata_delayed_attach);
free(ata_delayed_attach, M_TEMP);
ata_delayed_attach = NULL;
}
mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
}
#endif
/*
* misc support functions
*/
#ifndef ATA_CAM
static device_t
ata_add_child(device_t parent, struct ata_device *atadev, int unit)
{
device_t child;
if ((child = device_add_child(parent, NULL, unit))) {
device_set_softc(child, atadev);
device_quiet(child);
atadev->dev = child;
atadev->max_iosize = DEV_BSIZE;
atadev->mode = ATA_PIO_MAX;
}
return child;
}
#endif
int
ata_getparam(struct ata_device *atadev, int init)
{
struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev));
struct ata_request *request;
const char *res;
char buf[64];
u_int8_t command = 0;
int error = ENOMEM, retries = 2, mode = -1;
if (ch->devices & (ATA_ATA_MASTER << atadev->unit))
command = ATA_ATA_IDENTIFY;
if (ch->devices & (ATA_ATAPI_MASTER << atadev->unit))
command = ATA_ATAPI_IDENTIFY;
if (!command)
return ENXIO;
while (retries-- > 0 && error) {
if (!(request = ata_alloc_request()))
break;
request->dev = atadev->dev;
request->timeout = 1;
request->retries = 0;
request->u.ata.command = command;
request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT);
if (!bootverbose)
request->flags |= ATA_R_QUIET;
request->data = (void *)&atadev->param;
request->bytecount = sizeof(struct ata_params);
request->donecount = 0;
request->transfersize = DEV_BSIZE;
ata_queue_request(request);
error = request->result;
ata_free_request(request);
}
if (!error && (isprint(atadev->param.model[0]) ||
isprint(atadev->param.model[1]))) {
struct ata_params *atacap = &atadev->param;
int16_t *ptr;
for (ptr = (int16_t *)atacap;
ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) {
*ptr = le16toh(*ptr);
}
if (!(!strncmp(atacap->model, "FX", 2) ||
!strncmp(atacap->model, "NEC", 3) ||
!strncmp(atacap->model, "Pioneer", 7) ||
!strncmp(atacap->model, "SHARP", 5))) {
bswap(atacap->model, sizeof(atacap->model));
bswap(atacap->revision, sizeof(atacap->revision));
bswap(atacap->serial, sizeof(atacap->serial));
}
btrim(atacap->model, sizeof(atacap->model));
bpack(atacap->model, atacap->model, sizeof(atacap->model));
btrim(atacap->revision, sizeof(atacap->revision));
bpack(atacap->revision, atacap->revision, sizeof(atacap->revision));
btrim(atacap->serial, sizeof(atacap->serial));
bpack(atacap->serial, atacap->serial, sizeof(atacap->serial));
if (bootverbose)
printf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n",
device_get_unit(ch->dev),
ata_unit2str(atadev),
ata_mode2str(ata_pmode(atacap)),
ata_mode2str(ata_wmode(atacap)),
ata_mode2str(ata_umode(atacap)),
(atacap->hwres & ATA_CABLE_ID) ? "80":"40");
if (init) {
char buffer[64];
sprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision);
device_set_desc_copy(atadev->dev, buffer);
if ((atadev->param.config & ATA_PROTO_ATAPI) &&
(atadev->param.config != ATA_CFA_MAGIC1) &&
(atadev->param.config != ATA_CFA_MAGIC2)) {
if (atapi_dma &&
(atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR &&
ata_umode(&atadev->param) >= ATA_UDMA2)
atadev->mode = ATA_DMA_MAX;
}
else {
if (ata_dma &&
(ata_umode(&atadev->param) > 0 ||
ata_wmode(&atadev->param) > 0))
atadev->mode = ATA_DMA_MAX;
}
snprintf(buf, sizeof(buf), "dev%d.mode", atadev->unit);
if (resource_string_value(device_get_name(ch->dev),
device_get_unit(ch->dev), buf, &res) == 0)
mode = ata_str2mode(res);
else if (resource_string_value(device_get_name(ch->dev),
device_get_unit(ch->dev), "mode", &res) == 0)
mode = ata_str2mode(res);
if (mode >= 0)
atadev->mode = mode;
}
}
else {
if (!error)
error = ENXIO;
}
return error;
}
#ifndef ATA_CAM
int
ata_identify(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
struct ata_device *atadev;
device_t *children;
device_t child, master = NULL;
int nchildren, i, n = ch->devices;
if (bootverbose)
device_printf(dev, "Identifying devices: %08x\n", ch->devices);
mtx_lock(&Giant);
/* Skip existing devices. */
if (!device_get_children(dev, &children, &nchildren)) {
for (i = 0; i < nchildren; i++) {
if (children[i] && (atadev = device_get_softc(children[i])))
n &= ~((ATA_ATA_MASTER | ATA_ATAPI_MASTER) << atadev->unit);
}
free(children, M_TEMP);
}
/* Create new devices. */
if (bootverbose)
device_printf(dev, "New devices: %08x\n", n);
if (n == 0) {
mtx_unlock(&Giant);
return (0);
}
for (i = 0; i < ATA_PM; ++i) {
if (n & (((ATA_ATA_MASTER | ATA_ATAPI_MASTER) << i))) {
int unit = -1;
if (!(atadev = malloc(sizeof(struct ata_device),
M_ATA, M_NOWAIT | M_ZERO))) {
device_printf(dev, "out of memory\n");
return ENOMEM;
}
atadev->unit = i;
#ifdef ATA_STATIC_ID
if (n & (ATA_ATA_MASTER << i))
unit = (device_get_unit(dev) << 1) + i;
#endif
if ((child = ata_add_child(dev, atadev, unit))) {
/*
* PATA slave should be identified first, to allow
* device cable detection on master to work properly.
*/
if (i == 0 && (n & ATA_PORTMULTIPLIER) == 0 &&
(n & ((ATA_ATA_MASTER | ATA_ATAPI_MASTER) << 1)) != 0) {
master = child;
continue;
}
if (ata_getparam(atadev, 1)) {
device_delete_child(dev, child);
free(atadev, M_ATA);
}
}
else
free(atadev, M_ATA);
}
}
if (master) {
atadev = device_get_softc(master);
if (ata_getparam(atadev, 1)) {
device_delete_child(dev, master);
free(atadev, M_ATA);
}
}
bus_generic_probe(dev);
bus_generic_attach(dev);
mtx_unlock(&Giant);
return 0;
}
#endif
void
ata_default_registers(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
/* fill in the defaults from whats setup already */
ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
}
void
ata_modify_if_48bit(struct ata_request *request)
{
struct ata_channel *ch = device_get_softc(request->parent);
struct ata_device *atadev = device_get_softc(request->dev);
request->flags &= ~ATA_R_48BIT;
if (((request->u.ata.lba + request->u.ata.count) >= ATA_MAX_28BIT_LBA ||
request->u.ata.count > 256) &&
atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
/* translate command into 48bit version */
switch (request->u.ata.command) {
case ATA_READ:
request->u.ata.command = ATA_READ48;
break;
case ATA_READ_MUL:
request->u.ata.command = ATA_READ_MUL48;
break;
case ATA_READ_DMA:
if (ch->flags & ATA_NO_48BIT_DMA) {
if (request->transfersize > DEV_BSIZE)
request->u.ata.command = ATA_READ_MUL48;
else
request->u.ata.command = ATA_READ48;
request->flags &= ~ATA_R_DMA;
}
else
request->u.ata.command = ATA_READ_DMA48;
break;
case ATA_READ_DMA_QUEUED:
if (ch->flags & ATA_NO_48BIT_DMA) {
if (request->transfersize > DEV_BSIZE)
request->u.ata.command = ATA_READ_MUL48;
else
request->u.ata.command = ATA_READ48;
request->flags &= ~ATA_R_DMA;
}
else
request->u.ata.command = ATA_READ_DMA_QUEUED48;
break;
case ATA_WRITE:
request->u.ata.command = ATA_WRITE48;
break;
case ATA_WRITE_MUL:
request->u.ata.command = ATA_WRITE_MUL48;
break;
case ATA_WRITE_DMA:
if (ch->flags & ATA_NO_48BIT_DMA) {
if (request->transfersize > DEV_BSIZE)
request->u.ata.command = ATA_WRITE_MUL48;
else
request->u.ata.command = ATA_WRITE48;
request->flags &= ~ATA_R_DMA;
}
else
request->u.ata.command = ATA_WRITE_DMA48;
break;
case ATA_WRITE_DMA_QUEUED:
if (ch->flags & ATA_NO_48BIT_DMA) {
if (request->transfersize > DEV_BSIZE)
request->u.ata.command = ATA_WRITE_MUL48;
else
request->u.ata.command = ATA_WRITE48;
request->u.ata.command = ATA_WRITE48;
request->flags &= ~ATA_R_DMA;
}
else
request->u.ata.command = ATA_WRITE_DMA_QUEUED48;
break;
case ATA_FLUSHCACHE:
request->u.ata.command = ATA_FLUSHCACHE48;
break;
case ATA_SET_MAX_ADDRESS:
request->u.ata.command = ATA_SET_MAX_ADDRESS48;
break;
default:
return;
}
request->flags |= ATA_R_48BIT;
}
else if (atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
/* translate command into 48bit version */
switch (request->u.ata.command) {
case ATA_FLUSHCACHE:
request->u.ata.command = ATA_FLUSHCACHE48;
break;
case ATA_READ_NATIVE_MAX_ADDRESS:
request->u.ata.command = ATA_READ_NATIVE_MAX_ADDRESS48;
break;
case ATA_SET_MAX_ADDRESS:
request->u.ata.command = ATA_SET_MAX_ADDRESS48;
break;
default:
return;
}
request->flags |= ATA_R_48BIT;
}
}
void
ata_udelay(int interval)
{
/* for now just use DELAY, the timer/sleep subsytems are not there yet */
if (1 || interval < (1000000/hz) || ata_delayed_attach)
DELAY(interval);
else
pause("ataslp", interval/(1000000/hz));
}
char *
ata_unit2str(struct ata_device *atadev)
{
struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev));
static char str[8];
if (ch->devices & ATA_PORTMULTIPLIER)
sprintf(str, "port%d", atadev->unit);
else
sprintf(str, "%s", atadev->unit == ATA_MASTER ? "master" : "slave");
return str;
}
const char *
ata_mode2str(int mode)
{
switch (mode) {
case -1: return "UNSUPPORTED";
case ATA_PIO0: return "PIO0";
case ATA_PIO1: return "PIO1";
case ATA_PIO2: return "PIO2";
case ATA_PIO3: return "PIO3";
case ATA_PIO4: return "PIO4";
case ATA_WDMA0: return "WDMA0";
case ATA_WDMA1: return "WDMA1";
case ATA_WDMA2: return "WDMA2";
case ATA_UDMA0: return "UDMA16";
case ATA_UDMA1: return "UDMA25";
case ATA_UDMA2: return "UDMA33";
case ATA_UDMA3: return "UDMA40";
case ATA_UDMA4: return "UDMA66";
case ATA_UDMA5: return "UDMA100";
case ATA_UDMA6: return "UDMA133";
case ATA_SA150: return "SATA150";
case ATA_SA300: return "SATA300";
default:
if (mode & ATA_DMA_MASK)
return "BIOSDMA";
else
return "BIOSPIO";
}
}
int
ata_str2mode(const char *str)
{
if (!strcasecmp(str, "PIO0")) return (ATA_PIO0);
if (!strcasecmp(str, "PIO1")) return (ATA_PIO1);
if (!strcasecmp(str, "PIO2")) return (ATA_PIO2);
if (!strcasecmp(str, "PIO3")) return (ATA_PIO3);
if (!strcasecmp(str, "PIO4")) return (ATA_PIO4);
if (!strcasecmp(str, "WDMA0")) return (ATA_WDMA0);
if (!strcasecmp(str, "WDMA1")) return (ATA_WDMA1);
if (!strcasecmp(str, "WDMA2")) return (ATA_WDMA2);
if (!strcasecmp(str, "UDMA0")) return (ATA_UDMA0);
if (!strcasecmp(str, "UDMA16")) return (ATA_UDMA0);
if (!strcasecmp(str, "UDMA1")) return (ATA_UDMA1);
if (!strcasecmp(str, "UDMA25")) return (ATA_UDMA1);
if (!strcasecmp(str, "UDMA2")) return (ATA_UDMA2);
if (!strcasecmp(str, "UDMA33")) return (ATA_UDMA2);
if (!strcasecmp(str, "UDMA3")) return (ATA_UDMA3);
if (!strcasecmp(str, "UDMA44")) return (ATA_UDMA3);
if (!strcasecmp(str, "UDMA4")) return (ATA_UDMA4);
if (!strcasecmp(str, "UDMA66")) return (ATA_UDMA4);
if (!strcasecmp(str, "UDMA5")) return (ATA_UDMA5);
if (!strcasecmp(str, "UDMA100")) return (ATA_UDMA5);
if (!strcasecmp(str, "UDMA6")) return (ATA_UDMA6);
if (!strcasecmp(str, "UDMA133")) return (ATA_UDMA6);
return (-1);
}
const char *
ata_satarev2str(int rev)
{
switch (rev) {
case 0: return "";
case 1: return "SATA 1.5Gb/s";
case 2: return "SATA 3Gb/s";
case 3: return "SATA 6Gb/s";
case 0xff: return "SATA";
default: return "???";
}
}
int
ata_atapi(device_t dev, int target)
{
struct ata_channel *ch = device_get_softc(dev);
return (ch->devices & (ATA_ATAPI_MASTER << target));
}
int
ata_pmode(struct ata_params *ap)
{
if (ap->atavalid & ATA_FLAG_64_70) {
if (ap->apiomodes & 0x02)
return ATA_PIO4;
if (ap->apiomodes & 0x01)
return ATA_PIO3;
}
if (ap->mwdmamodes & 0x04)
return ATA_PIO4;
if (ap->mwdmamodes & 0x02)
return ATA_PIO3;
if (ap->mwdmamodes & 0x01)
return ATA_PIO2;
if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
return ATA_PIO2;
if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
return ATA_PIO1;
if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
return ATA_PIO0;
return ATA_PIO0;
}
int
ata_wmode(struct ata_params *ap)
{
if (ap->mwdmamodes & 0x04)
return ATA_WDMA2;
if (ap->mwdmamodes & 0x02)
return ATA_WDMA1;
if (ap->mwdmamodes & 0x01)
return ATA_WDMA0;
return -1;
}
int
ata_umode(struct ata_params *ap)
{
if (ap->atavalid & ATA_FLAG_88) {
if (ap->udmamodes & 0x40)
return ATA_UDMA6;
if (ap->udmamodes & 0x20)
return ATA_UDMA5;
if (ap->udmamodes & 0x10)
return ATA_UDMA4;
if (ap->udmamodes & 0x08)
return ATA_UDMA3;
if (ap->udmamodes & 0x04)
return ATA_UDMA2;
if (ap->udmamodes & 0x02)
return ATA_UDMA1;
if (ap->udmamodes & 0x01)
return ATA_UDMA0;
}
return -1;
}
int
ata_limit_mode(device_t dev, int mode, int maxmode)
{
struct ata_device *atadev = device_get_softc(dev);
if (maxmode && mode > maxmode)
mode = maxmode;
if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0)
return min(mode, ata_umode(&atadev->param));
if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0)
return min(mode, ata_wmode(&atadev->param));
if (mode > ata_pmode(&atadev->param))
return min(mode, ata_pmode(&atadev->param));
return mode;
}
static void
bswap(int8_t *buf, int len)
{
u_int16_t *ptr = (u_int16_t*)(buf + len);
while (--ptr >= (u_int16_t*)buf)
*ptr = ntohs(*ptr);
}
static void
btrim(int8_t *buf, int len)
{
int8_t *ptr;
for (ptr = buf; ptr < buf+len; ++ptr)
if (!*ptr || *ptr == '_')
*ptr = ' ';
for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
*ptr = 0;
}
static void
bpack(int8_t *src, int8_t *dst, int len)
{
int i, j, blank;
for (i = j = blank = 0 ; i < len; i++) {
if (blank && src[i] == ' ') continue;
if (blank && src[i] != ' ') {
dst[j++] = src[i];
blank = 0;
continue;
}
if (src[i] == ' ') {
blank = 1;
if (i == 0)
continue;
}
dst[j++] = src[i];
}
if (j < len)
dst[j] = 0x00;
}
#ifdef ATA_CAM
void
ata_cam_begin_transaction(device_t dev, union ccb *ccb)
{
struct ata_channel *ch = device_get_softc(dev);
struct ata_request *request;
if (!(request = ata_alloc_request())) {
device_printf(dev, "FAILURE - out of memory in start\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
return;
}
bzero(request, sizeof(*request));
/* setup request */
request->dev = NULL;
request->parent = dev;
request->unit = ccb->ccb_h.target_id;
if (ccb->ccb_h.func_code == XPT_ATA_IO) {
request->data = ccb->ataio.data_ptr;
request->bytecount = ccb->ataio.dxfer_len;
request->u.ata.command = ccb->ataio.cmd.command;
request->u.ata.feature = ((uint16_t)ccb->ataio.cmd.features_exp << 8) |
(uint16_t)ccb->ataio.cmd.features;
request->u.ata.count = ((uint16_t)ccb->ataio.cmd.sector_count_exp << 8) |
(uint16_t)ccb->ataio.cmd.sector_count;
if (ccb->ataio.cmd.flags & CAM_ATAIO_48BIT) {
request->flags |= ATA_R_48BIT;
request->u.ata.lba =
((uint64_t)ccb->ataio.cmd.lba_high_exp << 40) |
((uint64_t)ccb->ataio.cmd.lba_mid_exp << 32) |
((uint64_t)ccb->ataio.cmd.lba_low_exp << 24);
} else {
request->u.ata.lba =
((uint64_t)(ccb->ataio.cmd.device & 0x0f) << 24);
}
request->u.ata.lba |= ((uint64_t)ccb->ataio.cmd.lba_high << 16) |
((uint64_t)ccb->ataio.cmd.lba_mid << 8) |
(uint64_t)ccb->ataio.cmd.lba_low;
if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE &&
ccb->ataio.cmd.flags & CAM_ATAIO_DMA)
request->flags |= ATA_R_DMA;
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
request->flags |= ATA_R_READ;
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
request->flags |= ATA_R_WRITE;
} else {
request->data = ccb->csio.data_ptr;
request->bytecount = ccb->csio.dxfer_len;
bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes,
request->u.atapi.ccb, ccb->csio.cdb_len);
request->flags |= ATA_R_ATAPI;
if (ch->curr[ccb->ccb_h.target_id].atapi == 16)
request->flags |= ATA_R_ATAPI16;
if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE &&
ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA)
request->flags |= ATA_R_DMA;
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
request->flags |= ATA_R_READ;
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
request->flags |= ATA_R_WRITE;
}
request->transfersize = min(request->bytecount,
ch->curr[ccb->ccb_h.target_id].bytecount);
request->retries = 0;
request->timeout = (ccb->ccb_h.timeout + 999) / 1000;
callout_init_mtx(&request->callout, &ch->state_mtx, CALLOUT_RETURNUNLOCKED);
request->ccb = ccb;
ch->running = request;
ch->state = ATA_ACTIVE;
if (ch->hw.begin_transaction(request) == ATA_OP_FINISHED) {
ch->running = NULL;
ch->state = ATA_IDLE;
ata_cam_end_transaction(dev, request);
return;
}
}
void
ata_cam_end_transaction(device_t dev, struct ata_request *request)
{
struct ata_channel *ch = device_get_softc(dev);
union ccb *ccb = request->ccb;
int fatalerr = 0;
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
if (request->flags & ATA_R_TIMEOUT) {
xpt_freeze_simq(ch->sim, 1);
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
ccb->ccb_h.status |= CAM_CMD_TIMEOUT | CAM_RELEASE_SIMQ;
fatalerr = 1;
} else if (request->status & ATA_S_ERROR) {
if (ccb->ccb_h.func_code == XPT_ATA_IO) {
ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR;
} else {
ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
}
} else if (request->result == ERESTART)
ccb->ccb_h.status |= CAM_REQUEUE_REQ;
else if (request->result != 0)
ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
else
ccb->ccb_h.status |= CAM_REQ_CMP;
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP &&
!(ccb->ccb_h.status & CAM_DEV_QFRZN)) {
xpt_freeze_devq(ccb->ccb_h.path, 1);
ccb->ccb_h.status |= CAM_DEV_QFRZN;
}
if (ccb->ccb_h.func_code == XPT_ATA_IO &&
((request->status & ATA_S_ERROR) ||
(ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT))) {
struct ata_res *res = &ccb->ataio.res;
res->status = request->status;
res->error = request->error;
res->lba_low = request->u.ata.lba;
res->lba_mid = request->u.ata.lba >> 8;
res->lba_high = request->u.ata.lba >> 16;
res->device = request->u.ata.lba >> 24;
res->lba_low_exp = request->u.ata.lba >> 24;
res->lba_mid_exp = request->u.ata.lba >> 32;
res->lba_high_exp = request->u.ata.lba >> 40;
res->sector_count = request->u.ata.count;
res->sector_count_exp = request->u.ata.count >> 8;
}
ata_free_request(request);
xpt_done(ccb);
/* Do error recovery if needed. */
if (fatalerr)
ata_reinit(dev);
}
static int
ata_check_ids(device_t dev, union ccb *ccb)
{
struct ata_channel *ch = device_get_softc(dev);
if (ccb->ccb_h.target_id > ((ch->flags & ATA_NO_SLAVE) ? 0 : 1)) {
ccb->ccb_h.status = CAM_TID_INVALID;
xpt_done(ccb);
return (-1);
}
if (ccb->ccb_h.target_lun != 0) {
ccb->ccb_h.status = CAM_LUN_INVALID;
xpt_done(ccb);
return (-1);
}
return (0);
}
static void
ataaction(struct cam_sim *sim, union ccb *ccb)
{
device_t dev, parent;
struct ata_channel *ch;
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ataaction func_code=%x\n",
ccb->ccb_h.func_code));
ch = (struct ata_channel *)cam_sim_softc(sim);
dev = ch->dev;
switch (ccb->ccb_h.func_code) {
/* Common cases first */
case XPT_ATA_IO: /* Execute the requested I/O operation */
case XPT_SCSI_IO:
if (ata_check_ids(dev, ccb))
return;
if ((ch->devices & ((ATA_ATA_MASTER | ATA_ATAPI_MASTER)
<< ccb->ccb_h.target_id)) == 0) {
ccb->ccb_h.status = CAM_SEL_TIMEOUT;
break;
}
if (ch->running)
device_printf(dev, "already running!\n");
if (ccb->ccb_h.func_code == XPT_ATA_IO &&
(ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
(ccb->ataio.cmd.control & ATA_A_RESET)) {
struct ata_res *res = &ccb->ataio.res;
bzero(res, sizeof(*res));
if (ch->devices & (ATA_ATA_MASTER << ccb->ccb_h.target_id)) {
res->lba_high = 0;
res->lba_mid = 0;
} else {
res->lba_high = 0xeb;
res->lba_mid = 0x14;
}
ccb->ccb_h.status = CAM_REQ_CMP;
break;
}
ata_cam_begin_transaction(dev, ccb);
return;
case XPT_EN_LUN: /* Enable LUN as a target */
case XPT_TARGET_IO: /* Execute target I/O request */
case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/
case XPT_ABORT: /* Abort the specified CCB */
/* XXX Implement */
ccb->ccb_h.status = CAM_REQ_INVALID;
break;
case XPT_SET_TRAN_SETTINGS:
{
struct ccb_trans_settings *cts = &ccb->cts;
struct ata_cam_device *d;
if (ata_check_ids(dev, ccb))
return;
if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
d = &ch->curr[ccb->ccb_h.target_id];
else
d = &ch->user[ccb->ccb_h.target_id];
if (ch->flags & ATA_SATA) {
if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION)
d->revision = cts->xport_specific.sata.revision;
if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) {
if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
d->mode = ATA_SETMODE(ch->dev,
ccb->ccb_h.target_id,
cts->xport_specific.sata.mode);
} else
d->mode = cts->xport_specific.sata.mode;
}
if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT)
d->bytecount = min(8192, cts->xport_specific.sata.bytecount);
if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI)
d->atapi = cts->xport_specific.sata.atapi;
} else {
if (cts->xport_specific.ata.valid & CTS_ATA_VALID_MODE) {
if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
d->mode = ATA_SETMODE(ch->dev,
ccb->ccb_h.target_id,
cts->xport_specific.ata.mode);
} else
d->mode = cts->xport_specific.ata.mode;
}
if (cts->xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT)
d->bytecount = cts->xport_specific.ata.bytecount;
if (cts->xport_specific.ata.valid & CTS_ATA_VALID_ATAPI)
d->atapi = cts->xport_specific.ata.atapi;
}
ccb->ccb_h.status = CAM_REQ_CMP;
break;
}
case XPT_GET_TRAN_SETTINGS:
{
struct ccb_trans_settings *cts = &ccb->cts;
struct ata_cam_device *d;
if (ata_check_ids(dev, ccb))
return;
if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
d = &ch->curr[ccb->ccb_h.target_id];
else
d = &ch->user[ccb->ccb_h.target_id];
cts->protocol = PROTO_ATA;
cts->protocol_version = PROTO_VERSION_UNSPECIFIED;
if (ch->flags & ATA_SATA) {
cts->transport = XPORT_SATA;
cts->transport_version = XPORT_VERSION_UNSPECIFIED;
cts->xport_specific.sata.valid = 0;
cts->xport_specific.sata.mode = d->mode;
cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE;
cts->xport_specific.sata.bytecount = d->bytecount;
cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT;
if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
cts->xport_specific.sata.revision =
ATA_GETREV(dev, ccb->ccb_h.target_id);
if (cts->xport_specific.sata.revision != 0xff) {
cts->xport_specific.sata.valid |=
CTS_SATA_VALID_REVISION;
}
} else {
cts->xport_specific.sata.revision = d->revision;
cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION;
}
cts->xport_specific.sata.atapi = d->atapi;
cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI;
} else {
cts->transport = XPORT_ATA;
cts->transport_version = XPORT_VERSION_UNSPECIFIED;
cts->xport_specific.ata.valid = 0;
cts->xport_specific.ata.mode = d->mode;
cts->xport_specific.ata.valid |= CTS_ATA_VALID_MODE;
cts->xport_specific.ata.bytecount = d->bytecount;
cts->xport_specific.ata.valid |= CTS_ATA_VALID_BYTECOUNT;
cts->xport_specific.ata.atapi = d->atapi;
cts->xport_specific.ata.valid |= CTS_ATA_VALID_ATAPI;
}
ccb->ccb_h.status = CAM_REQ_CMP;
break;
}
case XPT_RESET_BUS: /* Reset the specified SCSI bus */
case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
ata_reinit(dev);
ccb->ccb_h.status = CAM_REQ_CMP;
break;
case XPT_TERM_IO: /* Terminate the I/O process */
/* XXX Implement */
ccb->ccb_h.status = CAM_REQ_INVALID;
break;
case XPT_PATH_INQ: /* Path routing inquiry */
{
struct ccb_pathinq *cpi = &ccb->cpi;
parent = device_get_parent(dev);
cpi->version_num = 1; /* XXX??? */
cpi->hba_inquiry = PI_SDTR_ABLE;
cpi->target_sprt = 0;
cpi->hba_misc = PIM_SEQSCAN;
cpi->hba_eng_cnt = 0;
if (ch->flags & ATA_NO_SLAVE)
cpi->max_target = 0;
else
cpi->max_target = 1;
cpi->max_lun = 0;
cpi->initiator_id = 0;
cpi->bus_id = cam_sim_bus(sim);
if (ch->flags & ATA_SATA)
cpi->base_transfer_speed = 150000;
else
cpi->base_transfer_speed = 3300;
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strncpy(cpi->hba_vid, "ATA", HBA_IDLEN);
strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
cpi->unit_number = cam_sim_unit(sim);
if (ch->flags & ATA_SATA)
cpi->transport = XPORT_SATA;
else
cpi->transport = XPORT_ATA;
cpi->transport_version = XPORT_VERSION_UNSPECIFIED;
cpi->protocol = PROTO_ATA;
cpi->protocol_version = PROTO_VERSION_UNSPECIFIED;
cpi->maxio = ch->dma.max_iosize ? ch->dma.max_iosize : DFLTPHYS;
if (device_get_devclass(device_get_parent(parent)) ==
devclass_find("pci")) {
cpi->hba_vendor = pci_get_vendor(parent);
cpi->hba_device = pci_get_device(parent);
cpi->hba_subvendor = pci_get_subvendor(parent);
cpi->hba_subdevice = pci_get_subdevice(parent);
}
cpi->ccb_h.status = CAM_REQ_CMP;
break;
}
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
break;
}
xpt_done(ccb);
}
static void
atapoll(struct cam_sim *sim)
{
struct ata_channel *ch = (struct ata_channel *)cam_sim_softc(sim);
ata_interrupt_locked(ch);
}
#endif
/*
* module handeling
*/
static int
ata_module_event_handler(module_t mod, int what, void *arg)
{
#ifndef ATA_CAM
static struct cdev *atacdev;
#endif
switch (what) {
case MOD_LOAD:
#ifndef ATA_CAM
/* register controlling device */
atacdev = make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
if (cold) {
/* register boot attach to be run when interrupts are enabled */
if (!(ata_delayed_attach = (struct intr_config_hook *)
malloc(sizeof(struct intr_config_hook),
M_TEMP, M_NOWAIT | M_ZERO))) {
printf("ata: malloc of delayed attach hook failed\n");
return EIO;
}
ata_delayed_attach->ich_func = (void*)ata_boot_attach;
if (config_intrhook_establish(ata_delayed_attach) != 0) {
printf("ata: config_intrhook_establish failed\n");
free(ata_delayed_attach, M_TEMP);
}
}
#endif
return 0;
case MOD_UNLOAD:
#ifndef ATA_CAM
/* deregister controlling device */
destroy_dev(atacdev);
#endif
return 0;
default:
return EOPNOTSUPP;
}
}
static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
MODULE_VERSION(ata, 1);
#ifdef ATA_CAM
MODULE_DEPEND(ata, cam, 1, 1, 1);
#endif
static void
ata_init(void)
{
ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request),
NULL, NULL, NULL, NULL, 0, 0);
ata_composite_zone = uma_zcreate("ata_composite",
sizeof(struct ata_composite),
NULL, NULL, NULL, NULL, 0, 0);
}
SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
static void
ata_uninit(void)
{
uma_zdestroy(ata_composite_zone);
uma_zdestroy(ata_request_zone);
}
SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);
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