#include "aic7xxx_osm.h"
#include "aic7xxx_inline.h"
#include <scsi/scsicam.h>
-#include <scsi/scsi_transport.h>
-#include <scsi/scsi_transport_spi.h>
static struct scsi_transport_template *ahc_linux_transport_template = NULL;
);
static void ahc_linux_handle_scsi_status(struct ahc_softc *,
- struct ahc_linux_device *,
+ struct scsi_device *,
struct scb *);
static void ahc_linux_queue_cmd_complete(struct ahc_softc *ahc,
struct scsi_cmnd *cmd);
static void ahc_linux_initialize_scsi_bus(struct ahc_softc *ahc);
static u_int ahc_linux_user_tagdepth(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
-static void ahc_linux_device_queue_depth(struct ahc_softc *ahc,
- struct ahc_linux_device *dev);
-static struct ahc_linux_target* ahc_linux_alloc_target(struct ahc_softc*,
- u_int, u_int);
-static void ahc_linux_free_target(struct ahc_softc*,
- struct ahc_linux_target*);
-static struct ahc_linux_device* ahc_linux_alloc_device(struct ahc_softc*,
- struct ahc_linux_target*,
- u_int);
-static void ahc_linux_free_device(struct ahc_softc*,
- struct ahc_linux_device*);
+static void ahc_linux_device_queue_depth(struct scsi_device *);
static int ahc_linux_run_command(struct ahc_softc*,
struct ahc_linux_device *,
struct scsi_cmnd *);
static int ahc_linux_next_unit(void);
/********************************* Inlines ************************************/
-static __inline struct ahc_linux_device*
- ahc_linux_get_device(struct ahc_softc *ahc, u_int channel,
- u_int target, u_int lun);
static __inline void ahc_linux_unmap_scb(struct ahc_softc*, struct scb*);
static __inline int ahc_linux_map_seg(struct ahc_softc *ahc, struct scb *scb,
struct ahc_dma_seg *sg,
dma_addr_t addr, bus_size_t len);
-static __inline struct ahc_linux_device*
-ahc_linux_get_device(struct ahc_softc *ahc, u_int channel, u_int target,
- u_int lun)
-{
- struct ahc_linux_target *targ;
- struct ahc_linux_device *dev;
- u_int target_offset;
-
- target_offset = target;
- if (channel != 0)
- target_offset += 8;
- targ = ahc->platform_data->targets[target_offset];
- BUG_ON(targ == NULL);
- dev = targ->devices[lun];
- return dev;
-}
-
static __inline void
ahc_linux_unmap_scb(struct ahc_softc *ahc, struct scb *scb)
{
ahc_linux_queue(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd *))
{
struct ahc_softc *ahc;
- struct ahc_linux_device *dev;
+ struct ahc_linux_device *dev = scsi_transport_device_data(cmd->device);
ahc = *(struct ahc_softc **)cmd->device->host->hostdata;
if (ahc->platform_data->qfrozen != 0)
return SCSI_MLQUEUE_HOST_BUSY;
- dev = ahc_linux_get_device(ahc, cmd->device->channel, cmd->device->id,
- cmd->device->lun);
- BUG_ON(dev == NULL);
-
cmd->result = CAM_REQ_INPROG << 16;
return ahc_linux_run_command(ahc, dev, cmd);
}
-static int
-ahc_linux_slave_alloc(struct scsi_device *device)
+static inline struct scsi_target **
+ahc_linux_target_in_softc(struct scsi_target *starget)
{
- struct ahc_softc *ahc;
- struct ahc_linux_target *targ;
- struct scsi_target *starget = device->sdev_target;
- struct ahc_linux_device *dev;
+ struct ahc_softc *ahc =
+ *((struct ahc_softc **)dev_to_shost(&starget->dev)->hostdata);
unsigned int target_offset;
+
+ target_offset = starget->id;
+ if (starget->channel != 0)
+ target_offset += 8;
+
+ return &ahc->platform_data->starget[target_offset];
+}
+
+static int
+ahc_linux_target_alloc(struct scsi_target *starget)
+{
+ struct ahc_softc *ahc =
+ *((struct ahc_softc **)dev_to_shost(&starget->dev)->hostdata);
+ struct seeprom_config *sc = ahc->seep_config;
unsigned long flags;
- int retval = -ENOMEM;
+ struct scsi_target **ahc_targp = ahc_linux_target_in_softc(starget);
+ struct ahc_linux_target *targ = scsi_transport_target_data(starget);
+ unsigned short scsirate;
+ struct ahc_devinfo devinfo;
+ struct ahc_initiator_tinfo *tinfo;
+ struct ahc_tmode_tstate *tstate;
+ char channel = starget->channel + 'A';
+ unsigned int our_id = ahc->our_id;
+ unsigned int target_offset;
target_offset = starget->id;
if (starget->channel != 0)
target_offset += 8;
+
+ if (starget->channel)
+ our_id = ahc->our_id_b;
- ahc = *((struct ahc_softc **)device->host->hostdata);
- if (bootverbose)
- printf("%s: Slave Alloc %d\n", ahc_name(ahc), device->id);
ahc_lock(ahc, &flags);
- targ = ahc->platform_data->targets[target_offset];
- if (targ == NULL) {
- struct seeprom_config *sc;
-
- targ = ahc_linux_alloc_target(ahc, starget->channel,
- starget->id);
- sc = ahc->seep_config;
- if (targ == NULL)
- goto out;
- if (sc) {
- unsigned short scsirate;
- struct ahc_devinfo devinfo;
- struct ahc_initiator_tinfo *tinfo;
- struct ahc_tmode_tstate *tstate;
- char channel = starget->channel + 'A';
- unsigned int our_id = ahc->our_id;
+ BUG_ON(*ahc_targp != NULL);
- if (starget->channel)
- our_id = ahc->our_id_b;
+ *ahc_targp = starget;
+ memset(targ, 0, sizeof(*targ));
- if ((ahc->features & AHC_ULTRA2) != 0) {
- scsirate = sc->device_flags[target_offset] & CFXFER;
- } else {
- scsirate = (sc->device_flags[target_offset] & CFXFER) << 4;
- if (sc->device_flags[target_offset] & CFSYNCH)
- scsirate |= SOFS;
- }
- if (sc->device_flags[target_offset] & CFWIDEB) {
- scsirate |= WIDEXFER;
- spi_max_width(starget) = 1;
- } else
- spi_max_width(starget) = 0;
- spi_min_period(starget) =
- ahc_find_period(ahc, scsirate, AHC_SYNCRATE_DT);
- tinfo = ahc_fetch_transinfo(ahc, channel, ahc->our_id,
- targ->target, &tstate);
- ahc_compile_devinfo(&devinfo, our_id, targ->target,
- CAM_LUN_WILDCARD, channel,
- ROLE_INITIATOR);
- ahc_set_syncrate(ahc, &devinfo, NULL, 0, 0, 0,
- AHC_TRANS_GOAL, /*paused*/FALSE);
- ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
- AHC_TRANS_GOAL, /*paused*/FALSE);
+ if (sc) {
+ if ((ahc->features & AHC_ULTRA2) != 0) {
+ scsirate = sc->device_flags[target_offset] & CFXFER;
+ } else {
+ scsirate = (sc->device_flags[target_offset] & CFXFER) << 4;
+ if (sc->device_flags[target_offset] & CFSYNCH)
+ scsirate |= SOFS;
}
-
- }
- dev = targ->devices[device->lun];
- if (dev == NULL) {
- dev = ahc_linux_alloc_device(ahc, targ, device->lun);
- if (dev == NULL)
- goto out;
+ if (sc->device_flags[target_offset] & CFWIDEB) {
+ scsirate |= WIDEXFER;
+ spi_max_width(starget) = 1;
+ } else
+ spi_max_width(starget) = 0;
+ spi_min_period(starget) =
+ ahc_find_period(ahc, scsirate, AHC_SYNCRATE_DT);
+ tinfo = ahc_fetch_transinfo(ahc, channel, ahc->our_id,
+ starget->id, &tstate);
}
- retval = 0;
-
- out:
+ ahc_compile_devinfo(&devinfo, our_id, starget->id,
+ CAM_LUN_WILDCARD, channel,
+ ROLE_INITIATOR);
+ ahc_set_syncrate(ahc, &devinfo, NULL, 0, 0, 0,
+ AHC_TRANS_GOAL, /*paused*/FALSE);
+ ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
+ AHC_TRANS_GOAL, /*paused*/FALSE);
ahc_unlock(ahc, &flags);
- return retval;
+
+ return 0;
+}
+
+static void
+ahc_linux_target_destroy(struct scsi_target *starget)
+{
+ struct scsi_target **ahc_targp = ahc_linux_target_in_softc(starget);
+
+ *ahc_targp = NULL;
+}
+
+static int
+ahc_linux_slave_alloc(struct scsi_device *sdev)
+{
+ struct ahc_softc *ahc =
+ *((struct ahc_softc **)sdev->host->hostdata);
+ struct scsi_target *starget = sdev->sdev_target;
+ struct ahc_linux_target *targ = scsi_transport_target_data(starget);
+ struct ahc_linux_device *dev;
+
+ if (bootverbose)
+ printf("%s: Slave Alloc %d\n", ahc_name(ahc), sdev->id);
+
+ BUG_ON(targ->sdev[sdev->lun] != NULL);
+
+ dev = scsi_transport_device_data(sdev);
+ memset(dev, 0, sizeof(*dev));
+
+ /*
+ * We start out life using untagged
+ * transactions of which we allow one.
+ */
+ dev->openings = 1;
+
+ /*
+ * Set maxtags to 0. This will be changed if we
+ * later determine that we are dealing with
+ * a tagged queuing capable device.
+ */
+ dev->maxtags = 0;
+
+ targ->sdev[sdev->lun] = sdev;
+
+ return 0;
}
static int
-ahc_linux_slave_configure(struct scsi_device *device)
+ahc_linux_slave_configure(struct scsi_device *sdev)
{
struct ahc_softc *ahc;
- struct ahc_linux_device *dev;
- ahc = *((struct ahc_softc **)device->host->hostdata);
+ ahc = *((struct ahc_softc **)sdev->host->hostdata);
if (bootverbose)
- printf("%s: Slave Configure %d\n", ahc_name(ahc), device->id);
+ printf("%s: Slave Configure %d\n", ahc_name(ahc), sdev->id);
- dev = ahc_linux_get_device(ahc, device->channel, device->id,
- device->lun);
- dev->scsi_device = device;
- ahc_linux_device_queue_depth(ahc, dev);
+ ahc_linux_device_queue_depth(sdev);
/* Initial Domain Validation */
- if (!spi_initial_dv(device->sdev_target))
- spi_dv_device(device);
+ if (!spi_initial_dv(sdev->sdev_target))
+ spi_dv_device(sdev);
return 0;
}
static void
-ahc_linux_slave_destroy(struct scsi_device *device)
+ahc_linux_slave_destroy(struct scsi_device *sdev)
{
struct ahc_softc *ahc;
- struct ahc_linux_device *dev;
+ struct ahc_linux_device *dev = scsi_transport_device_data(sdev);
+ struct ahc_linux_target *targ = scsi_transport_target_data(sdev->sdev_target);
- ahc = *((struct ahc_softc **)device->host->hostdata);
+ ahc = *((struct ahc_softc **)sdev->host->hostdata);
if (bootverbose)
- printf("%s: Slave Destroy %d\n", ahc_name(ahc), device->id);
- dev = ahc_linux_get_device(ahc, device->channel,
- device->id, device->lun);
+ printf("%s: Slave Destroy %d\n", ahc_name(ahc), sdev->id);
BUG_ON(dev->active);
- ahc_linux_free_device(ahc, dev);
+ targ->sdev[sdev->lun] = NULL;
}
#if defined(__i386__)
.slave_alloc = ahc_linux_slave_alloc,
.slave_configure = ahc_linux_slave_configure,
.slave_destroy = ahc_linux_slave_destroy,
+ .target_alloc = ahc_linux_target_alloc,
+ .target_destroy = ahc_linux_target_destroy,
};
/**************************** Tasklet Handler *********************************/
void
ahc_platform_free(struct ahc_softc *ahc)
{
- struct ahc_linux_target *targ;
- struct ahc_linux_device *dev;
+ struct scsi_target *starget;
int i, j;
if (ahc->platform_data != NULL) {
/* destroy all of the device and target objects */
for (i = 0; i < AHC_NUM_TARGETS; i++) {
- targ = ahc->platform_data->targets[i];
- if (targ != NULL) {
- /* Keep target around through the loop. */
- targ->refcount++;
+ starget = ahc->platform_data->starget[i];
+ if (starget != NULL) {
for (j = 0; j < AHC_NUM_LUNS; j++) {
+ struct ahc_linux_target *targ =
+ scsi_transport_target_data(starget);
- if (targ->devices[j] == NULL)
+ if (targ->sdev[j] == NULL)
continue;
- dev = targ->devices[j];
- ahc_linux_free_device(ahc, dev);
+ targ->sdev[j] = NULL;
}
- /*
- * Forcibly free the target now that
- * all devices are gone.
- */
- ahc_linux_free_target(ahc, targ);
+ ahc->platform_data->starget[i] = NULL;
}
}
ahc_platform_set_tags(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
ahc_queue_alg alg)
{
+ struct scsi_target *starget;
+ struct ahc_linux_target *targ;
struct ahc_linux_device *dev;
+ struct scsi_device *sdev;
+ u_int target_offset;
int was_queuing;
int now_queuing;
- dev = ahc_linux_get_device(ahc, devinfo->channel - 'A',
- devinfo->target,
- devinfo->lun);
- if (dev == NULL)
+ target_offset = devinfo->target;
+ if (devinfo->channel != 'A')
+ target_offset += 8;
+ starget = ahc->platform_data->starget[target_offset];
+ targ = scsi_transport_target_data(starget);
+ BUG_ON(targ == NULL);
+ sdev = targ->sdev[devinfo->lun];
+ if (sdev == NULL)
return;
+ dev = scsi_transport_device_data(sdev);
+
was_queuing = dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED);
switch (alg) {
default:
dev->maxtags = 0;
dev->openings = 1 - dev->active;
}
- if (dev->scsi_device != NULL) {
- switch ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED))) {
- case AHC_DEV_Q_BASIC:
- scsi_adjust_queue_depth(dev->scsi_device,
- MSG_SIMPLE_TASK,
- dev->openings + dev->active);
- break;
- case AHC_DEV_Q_TAGGED:
- scsi_adjust_queue_depth(dev->scsi_device,
- MSG_ORDERED_TASK,
- dev->openings + dev->active);
- break;
- default:
- /*
- * We allow the OS to queue 2 untagged transactions to
- * us at any time even though we can only execute them
- * serially on the controller/device. This should
- * remove some latency.
- */
- scsi_adjust_queue_depth(dev->scsi_device,
- /*NON-TAGGED*/0,
- /*queue depth*/2);
- break;
- }
+ switch ((dev->flags & (AHC_DEV_Q_BASIC|AHC_DEV_Q_TAGGED))) {
+ case AHC_DEV_Q_BASIC:
+ scsi_adjust_queue_depth(sdev,
+ MSG_SIMPLE_TASK,
+ dev->openings + dev->active);
+ break;
+ case AHC_DEV_Q_TAGGED:
+ scsi_adjust_queue_depth(sdev,
+ MSG_ORDERED_TASK,
+ dev->openings + dev->active);
+ break;
+ default:
+ /*
+ * We allow the OS to queue 2 untagged transactions to
+ * us at any time even though we can only execute them
+ * serially on the controller/device. This should
+ * remove some latency.
+ */
+ scsi_adjust_queue_depth(sdev,
+ /*NON-TAGGED*/0,
+ /*queue depth*/2);
+ break;
}
}
* Determines the queue depth for a given device.
*/
static void
-ahc_linux_device_queue_depth(struct ahc_softc *ahc,
- struct ahc_linux_device *dev)
+ahc_linux_device_queue_depth(struct scsi_device *sdev)
{
struct ahc_devinfo devinfo;
u_int tags;
+ struct ahc_softc *ahc = *((struct ahc_softc **)sdev->host->hostdata);
ahc_compile_devinfo(&devinfo,
- dev->target->channel == 0
+ sdev->sdev_target->channel == 0
? ahc->our_id : ahc->our_id_b,
- dev->target->target, dev->lun,
- dev->target->channel == 0 ? 'A' : 'B',
+ sdev->sdev_target->id, sdev->lun,
+ sdev->sdev_target->channel == 0 ? 'A' : 'B',
ROLE_INITIATOR);
tags = ahc_linux_user_tagdepth(ahc, &devinfo);
- if (tags != 0
- && dev->scsi_device != NULL
- && dev->scsi_device->tagged_supported != 0) {
+ if (tags != 0 && sdev->tagged_supported != 0) {
ahc_set_tags(ahc, &devinfo, AHC_QUEUE_TAGGED);
ahc_print_devinfo(ahc, &devinfo);
}
-static struct ahc_linux_target*
-ahc_linux_alloc_target(struct ahc_softc *ahc, u_int channel, u_int target)
-{
- struct ahc_linux_target *targ;
- u_int target_offset;
-
- target_offset = target;
- if (channel != 0)
- target_offset += 8;
-
- targ = malloc(sizeof(*targ), M_DEVBUG, M_NOWAIT);
- if (targ == NULL)
- return (NULL);
- memset(targ, 0, sizeof(*targ));
- targ->channel = channel;
- targ->target = target;
- targ->ahc = ahc;
- ahc->platform_data->targets[target_offset] = targ;
- return (targ);
-}
-
-static void
-ahc_linux_free_target(struct ahc_softc *ahc, struct ahc_linux_target *targ)
-{
- struct ahc_devinfo devinfo;
- struct ahc_initiator_tinfo *tinfo;
- struct ahc_tmode_tstate *tstate;
- u_int our_id;
- u_int target_offset;
- char channel;
-
- /*
- * Force a negotiation to async/narrow on any
- * future command to this device unless a bus
- * reset occurs between now and that command.
- */
- channel = 'A' + targ->channel;
- our_id = ahc->our_id;
- target_offset = targ->target;
- if (targ->channel != 0) {
- target_offset += 8;
- our_id = ahc->our_id_b;
- }
- tinfo = ahc_fetch_transinfo(ahc, channel, our_id,
- targ->target, &tstate);
- ahc_compile_devinfo(&devinfo, our_id, targ->target, CAM_LUN_WILDCARD,
- channel, ROLE_INITIATOR);
- ahc_set_syncrate(ahc, &devinfo, NULL, 0, 0, 0,
- AHC_TRANS_GOAL, /*paused*/FALSE);
- ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
- AHC_TRANS_GOAL, /*paused*/FALSE);
- ahc_update_neg_request(ahc, &devinfo, tstate, tinfo, AHC_NEG_ALWAYS);
- ahc->platform_data->targets[target_offset] = NULL;
- free(targ, M_DEVBUF);
-}
-
-static struct ahc_linux_device*
-ahc_linux_alloc_device(struct ahc_softc *ahc,
- struct ahc_linux_target *targ, u_int lun)
-{
- struct ahc_linux_device *dev;
-
- dev = malloc(sizeof(*dev), M_DEVBUG, M_NOWAIT);
- if (dev == NULL)
- return (NULL);
- memset(dev, 0, sizeof(*dev));
- dev->lun = lun;
- dev->target = targ;
-
- /*
- * We start out life using untagged
- * transactions of which we allow one.
- */
- dev->openings = 1;
-
- /*
- * Set maxtags to 0. This will be changed if we
- * later determine that we are dealing with
- * a tagged queuing capable device.
- */
- dev->maxtags = 0;
-
- targ->refcount++;
- targ->devices[lun] = dev;
- return (dev);
-}
-
-static void
-ahc_linux_free_device(struct ahc_softc *ahc, struct ahc_linux_device *dev)
-{
- struct ahc_linux_target *targ;
-
- targ = dev->target;
- targ->devices[dev->lun] = NULL;
- free(dev, M_DEVBUF);
- targ->refcount--;
- if (targ->refcount == 0)
- ahc_linux_free_target(ahc, targ);
-}
-
void
ahc_send_async(struct ahc_softc *ahc, char channel,
u_int target, u_int lun, ac_code code, void *arg)
case AC_TRANSFER_NEG:
{
char buf[80];
+ struct scsi_target *starget;
struct ahc_linux_target *targ;
struct info_str info;
struct ahc_initiator_tinfo *tinfo;
struct ahc_tmode_tstate *tstate;
int target_offset;
+ unsigned int target_ppr_options;
+
+ BUG_ON(target == CAM_TARGET_WILDCARD);
info.buffer = buf;
info.length = sizeof(buf);
target_offset = target;
if (channel == 'B')
target_offset += 8;
- targ = ahc->platform_data->targets[target_offset];
+ starget = ahc->platform_data->starget[target_offset];
+ targ = scsi_transport_target_data(starget);
if (targ == NULL)
break;
- if (tinfo->curr.period == targ->last_tinfo.period
- && tinfo->curr.width == targ->last_tinfo.width
- && tinfo->curr.offset == targ->last_tinfo.offset
- && tinfo->curr.ppr_options == targ->last_tinfo.ppr_options)
+
+ target_ppr_options =
+ (spi_dt(starget) ? MSG_EXT_PPR_DT_REQ : 0)
+ + (spi_qas(starget) ? MSG_EXT_PPR_QAS_REQ : 0)
+ + (spi_iu(starget) ? MSG_EXT_PPR_IU_REQ : 0);
+
+ if (tinfo->curr.period == spi_period(starget)
+ && tinfo->curr.width == spi_width(starget)
+ && tinfo->curr.offset == spi_offset(starget)
+ && tinfo->curr.ppr_options == target_ppr_options)
if (bootverbose == 0)
break;
- targ->last_tinfo.period = tinfo->curr.period;
- targ->last_tinfo.width = tinfo->curr.width;
- targ->last_tinfo.offset = tinfo->curr.offset;
- targ->last_tinfo.ppr_options = tinfo->curr.ppr_options;
-
- printf("(%s:%c:", ahc_name(ahc), channel);
- if (target == CAM_TARGET_WILDCARD)
- printf("*): ");
- else
- printf("%d): ", target);
- ahc_format_transinfo(&info, &tinfo->curr);
- if (info.pos < info.length)
- *info.buffer = '\0';
- else
- buf[info.length - 1] = '\0';
- printf("%s", buf);
+ spi_period(starget) = tinfo->curr.period;
+ spi_width(starget) = tinfo->curr.width;
+ spi_offset(starget) = tinfo->curr.offset;
+ spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ;
+ spi_qas(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ;
+ spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ;
+ spi_display_xfer_agreement(starget);
break;
}
case AC_SENT_BDR:
ahc_set_transaction_status(scb, CAM_REQ_CMP);
}
} else if (ahc_get_transaction_status(scb) == CAM_SCSI_STATUS_ERROR) {
- ahc_linux_handle_scsi_status(ahc, dev, scb);
+ ahc_linux_handle_scsi_status(ahc, cmd->device, scb);
}
if (dev->openings == 1
static void
ahc_linux_handle_scsi_status(struct ahc_softc *ahc,
- struct ahc_linux_device *dev, struct scb *scb)
+ struct scsi_device *sdev, struct scb *scb)
{
struct ahc_devinfo devinfo;
+ struct ahc_linux_device *dev = scsi_transport_device_data(sdev);
ahc_compile_devinfo(&devinfo,
ahc->our_id,
- dev->target->target, dev->lun,
- dev->target->channel == 0 ? 'A' : 'B',
+ sdev->sdev_target->id, sdev->lun,
+ sdev->sdev_target->channel == 0 ? 'A' : 'B',
ROLE_INITIATOR);
/*
* at all, and the system wanted us to just abort the
* command, return success.
*/
- dev = ahc_linux_get_device(ahc, cmd->device->channel, cmd->device->id,
- cmd->device->lun);
+ dev = scsi_transport_device_data(cmd->device);
if (dev == NULL) {
/*
static void ahc_linux_exit(void);
-static void ahc_linux_get_width(struct scsi_target *starget)
-{
- struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
- struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
- struct ahc_tmode_tstate *tstate;
- struct ahc_initiator_tinfo *tinfo
- = ahc_fetch_transinfo(ahc,
- starget->channel + 'A',
- shost->this_id, starget->id, &tstate);
- spi_width(starget) = tinfo->curr.width;
-}
-
static void ahc_linux_set_width(struct scsi_target *starget, int width)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
ahc_unlock(ahc, &flags);
}
-static void ahc_linux_get_period(struct scsi_target *starget)
-{
- struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
- struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
- struct ahc_tmode_tstate *tstate;
- struct ahc_initiator_tinfo *tinfo
- = ahc_fetch_transinfo(ahc,
- starget->channel + 'A',
- shost->this_id, starget->id, &tstate);
- spi_period(starget) = tinfo->curr.period;
-}
-
static void ahc_linux_set_period(struct scsi_target *starget, int period)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
/* all PPR requests apart from QAS require wide transfers */
if (ppr_options & ~MSG_EXT_PPR_QAS_REQ) {
- ahc_linux_get_width(starget);
if (spi_width(starget) == 0)
ppr_options &= MSG_EXT_PPR_QAS_REQ;
}
ahc_unlock(ahc, &flags);
}
-static void ahc_linux_get_offset(struct scsi_target *starget)
-{
- struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
- struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
- struct ahc_tmode_tstate *tstate;
- struct ahc_initiator_tinfo *tinfo
- = ahc_fetch_transinfo(ahc,
- starget->channel + 'A',
- shost->this_id, starget->id, &tstate);
- spi_offset(starget) = tinfo->curr.offset;
-}
-
static void ahc_linux_set_offset(struct scsi_target *starget, int offset)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
ahc_unlock(ahc, &flags);
}
-static void ahc_linux_get_dt(struct scsi_target *starget)
-{
- struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
- struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
- struct ahc_tmode_tstate *tstate;
- struct ahc_initiator_tinfo *tinfo
- = ahc_fetch_transinfo(ahc,
- starget->channel + 'A',
- shost->this_id, starget->id, &tstate);
- spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ;
-}
-
static void ahc_linux_set_dt(struct scsi_target *starget, int dt)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
ahc_unlock(ahc, &flags);
}
-static void ahc_linux_get_qas(struct scsi_target *starget)
-{
- struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
- struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
- struct ahc_tmode_tstate *tstate;
- struct ahc_initiator_tinfo *tinfo
- = ahc_fetch_transinfo(ahc,
- starget->channel + 'A',
- shost->this_id, starget->id, &tstate);
- spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_QAS_REQ;
-}
-
static void ahc_linux_set_qas(struct scsi_target *starget, int qas)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
ahc_unlock(ahc, &flags);
}
-static void ahc_linux_get_iu(struct scsi_target *starget)
-{
- struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
- struct ahc_softc *ahc = *((struct ahc_softc **)shost->hostdata);
- struct ahc_tmode_tstate *tstate;
- struct ahc_initiator_tinfo *tinfo
- = ahc_fetch_transinfo(ahc,
- starget->channel + 'A',
- shost->this_id, starget->id, &tstate);
- spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ;
-}
-
static void ahc_linux_set_iu(struct scsi_target *starget, int iu)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
}
static struct spi_function_template ahc_linux_transport_functions = {
- .get_offset = ahc_linux_get_offset,
.set_offset = ahc_linux_set_offset,
.show_offset = 1,
- .get_period = ahc_linux_get_period,
.set_period = ahc_linux_set_period,
.show_period = 1,
- .get_width = ahc_linux_get_width,
.set_width = ahc_linux_set_width,
.show_width = 1,
- .get_dt = ahc_linux_get_dt,
.set_dt = ahc_linux_set_dt,
.show_dt = 1,
- .get_iu = ahc_linux_get_iu,
.set_iu = ahc_linux_set_iu,
.show_iu = 1,
- .get_qas = ahc_linux_get_qas,
.set_qas = ahc_linux_set_qas,
.show_qas = 1,
};
ahc_linux_transport_template = spi_attach_transport(&ahc_linux_transport_functions);
if (!ahc_linux_transport_template)
return -ENODEV;
+ scsi_transport_reserve_target(ahc_linux_transport_template,
+ sizeof(struct ahc_linux_target));
+ scsi_transport_reserve_device(ahc_linux_transport_template,
+ sizeof(struct ahc_linux_device));
if (ahc_linux_detect(&aic7xxx_driver_template))
return 0;
spi_release_transport(ahc_linux_transport_template);
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / commitdiff