#include <linux/blkdev.h> /* For block_size() */
#include <linux/delay.h> /* For ssleep/msleep */
#include <linux/device.h>
+#include <linux/slab.h>
/*
* Bucket size for counting good commands in between bad ones.
#define AIC79XX_PRECOMP_INDEX 0
#define AIC79XX_SLEWRATE_INDEX 1
#define AIC79XX_AMPLITUDE_INDEX 2
-static struct ahd_linux_iocell_opts aic79xx_iocell_info[] =
+static const struct ahd_linux_iocell_opts aic79xx_iocell_info[] =
{
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,
static uint32_t aic79xx_no_reset;
/*
- * Certain PCI motherboards will scan PCI devices from highest to lowest,
- * others scan from lowest to highest, and they tend to do all kinds of
- * strange things when they come into contact with PCI bridge chips. The
- * net result of all this is that the PCI card that is actually used to boot
- * the machine is very hard to detect. Most motherboards go from lowest
- * PCI slot number to highest, and the first SCSI controller found is the
- * one you boot from. The only exceptions to this are when a controller
- * has its BIOS disabled. So, we by default sort all of our SCSI controllers
- * from lowest PCI slot number to highest PCI slot number. We also force
- * all controllers with their BIOS disabled to the end of the list. This
- * works on *almost* all computers. Where it doesn't work, we have this
- * option. Setting this option to non-0 will reverse the order of the sort
- * to highest first, then lowest, but will still leave cards with their BIOS
- * disabled at the very end. That should fix everyone up unless there are
- * really strange cirumstances.
- */
-static uint32_t aic79xx_reverse_scan;
-
-/*
* Should we force EXTENDED translation on a controller.
* 0 == Use whatever is in the SEEPROM or default to off
* 1 == Use whatever is in the SEEPROM or default to on
* force all outstanding transactions to be serviced prior to a new
* transaction.
*/
-uint32_t aic79xx_periodic_otag;
+static uint32_t aic79xx_periodic_otag;
/* Some storage boxes are using an LSI chip which has a bug making it
* impossible to use aic79xx Rev B chip in 320 speeds. The following
*/
static char *aic79xx = NULL;
-MODULE_AUTHOR("Maintainer: Justin T. Gibbs <gibbs@scsiguy.com>");
-MODULE_DESCRIPTION("Adaptec Aic790X U320 SCSI Host Bus Adapter driver");
+MODULE_AUTHOR("Maintainer: Hannes Reinecke <hare@suse.de>");
+MODULE_DESCRIPTION("Adaptec AIC790X U320 SCSI Host Bus Adapter driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(AIC79XX_DRIVER_VERSION);
module_param(aic79xx, charp, 0444);
MODULE_PARM_DESC(aic79xx,
-"period delimited, options string.\n"
+"period-delimited options string:\n"
" verbose Enable verbose/diagnostic logging\n"
" allow_memio Allow device registers to be memory mapped\n"
" debug Bitmask of debug values to enable\n"
-" no_reset Supress initial bus resets\n"
+" no_reset Suppress initial bus resets\n"
" extended Enable extended geometry on all controllers\n"
" periodic_otag Send an ordered tagged transaction\n"
" periodically to prevent tag starvation.\n"
" This may be required by some older disk\n"
" or drives/RAID arrays.\n"
-" reverse_scan Sort PCI devices highest Bus/Slot to lowest\n"
" tag_info:<tag_str> Set per-target tag depth\n"
" global_tag_depth:<int> Global tag depth for all targets on all buses\n"
" slewrate:<slewrate_list>Set the signal slew rate (0-15).\n"
" Shorten the selection timeout to 128ms\n"
"\n"
" options aic79xx 'aic79xx=verbose.tag_info:{{}.{}.{..10}}.seltime:1'\n"
-"\n");
+);
static void ahd_linux_handle_scsi_status(struct ahd_softc *,
struct scsi_device *,
struct scb *);
static void ahd_linux_queue_cmd_complete(struct ahd_softc *ahd,
struct scsi_cmnd *cmd);
-static int ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag);
+static int ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd);
static void ahd_linux_initialize_scsi_bus(struct ahd_softc *ahd);
static u_int ahd_linux_user_tagdepth(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo);
struct scsi_cmnd *);
static void ahd_linux_setup_tag_info_global(char *p);
static int aic79xx_setup(char *c);
+static void ahd_freeze_simq(struct ahd_softc *ahd);
+static void ahd_release_simq(struct ahd_softc *ahd);
static int ahd_linux_unit;
+/************************** OS Utility Wrappers *******************************/
+void ahd_delay(long);
+void
+ahd_delay(long usec)
+{
+ /*
+ * udelay on Linux can have problems for
+ * multi-millisecond waits. Wait at most
+ * 1024us per call.
+ */
+ while (usec > 0) {
+ udelay(usec % 1024);
+ usec -= 1024;
+ }
+}
+
+
+/***************************** Low Level I/O **********************************/
+uint8_t ahd_inb(struct ahd_softc * ahd, long port);
+void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
+void ahd_outw_atomic(struct ahd_softc * ahd,
+ long port, uint16_t val);
+void ahd_outsb(struct ahd_softc * ahd, long port,
+ uint8_t *, int count);
+void ahd_insb(struct ahd_softc * ahd, long port,
+ uint8_t *, int count);
+
+uint8_t
+ahd_inb(struct ahd_softc * ahd, long port)
+{
+ uint8_t x;
+
+ if (ahd->tags[0] == BUS_SPACE_MEMIO) {
+ x = readb(ahd->bshs[0].maddr + port);
+ } else {
+ x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
+ }
+ mb();
+ return (x);
+}
+
+#if 0 /* unused */
+static uint16_t
+ahd_inw_atomic(struct ahd_softc * ahd, long port)
+{
+ uint8_t x;
+
+ if (ahd->tags[0] == BUS_SPACE_MEMIO) {
+ x = readw(ahd->bshs[0].maddr + port);
+ } else {
+ x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF));
+ }
+ mb();
+ return (x);
+}
+#endif
+
+void
+ahd_outb(struct ahd_softc * ahd, long port, uint8_t val)
+{
+ if (ahd->tags[0] == BUS_SPACE_MEMIO) {
+ writeb(val, ahd->bshs[0].maddr + port);
+ } else {
+ outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
+ }
+ mb();
+}
+
+void
+ahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val)
+{
+ if (ahd->tags[0] == BUS_SPACE_MEMIO) {
+ writew(val, ahd->bshs[0].maddr + port);
+ } else {
+ outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF));
+ }
+ mb();
+}
+
+void
+ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
+{
+ int i;
+
+ /*
+ * There is probably a more efficient way to do this on Linux
+ * but we don't use this for anything speed critical and this
+ * should work.
+ */
+ for (i = 0; i < count; i++)
+ ahd_outb(ahd, port, *array++);
+}
+
+void
+ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count)
+{
+ int i;
+
+ /*
+ * There is probably a more efficient way to do this on Linux
+ * but we don't use this for anything speed critical and this
+ * should work.
+ */
+ for (i = 0; i < count; i++)
+ *array++ = ahd_inb(ahd, port);
+}
+
+/******************************* PCI Routines *********************************/
+uint32_t
+ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
+{
+ switch (width) {
+ case 1:
+ {
+ uint8_t retval;
+
+ pci_read_config_byte(pci, reg, &retval);
+ return (retval);
+ }
+ case 2:
+ {
+ uint16_t retval;
+ pci_read_config_word(pci, reg, &retval);
+ return (retval);
+ }
+ case 4:
+ {
+ uint32_t retval;
+ pci_read_config_dword(pci, reg, &retval);
+ return (retval);
+ }
+ default:
+ panic("ahd_pci_read_config: Read size too big");
+ /* NOTREACHED */
+ return (0);
+ }
+}
+
+void
+ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
+{
+ switch (width) {
+ case 1:
+ pci_write_config_byte(pci, reg, value);
+ break;
+ case 2:
+ pci_write_config_word(pci, reg, value);
+ break;
+ case 4:
+ pci_write_config_dword(pci, reg, value);
+ break;
+ default:
+ panic("ahd_pci_write_config: Write size too big");
+ /* NOTREACHED */
+ }
+}
+
/****************************** Inlines ***************************************/
-static __inline void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*);
+static void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*);
-static __inline void
+static void
ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb)
{
struct scsi_cmnd *cmd;
- int direction;
cmd = scb->io_ctx;
- direction = cmd->sc_data_direction;
ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE);
- if (cmd->use_sg != 0) {
- struct scatterlist *sg;
-
- sg = (struct scatterlist *)cmd->request_buffer;
- pci_unmap_sg(ahd->dev_softc, sg, cmd->use_sg, direction);
- } else if (cmd->request_bufflen != 0) {
- pci_unmap_single(ahd->dev_softc,
- scb->platform_data->buf_busaddr,
- cmd->request_bufflen, direction);
- }
+ scsi_dma_unmap(cmd);
}
/******************************** Macros **************************************/
bp = &buffer[0];
ahd = *(struct ahd_softc **)host->hostdata;
memset(bp, 0, sizeof(buffer));
- strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev ");
- strcat(bp, AIC79XX_DRIVER_VERSION);
- strcat(bp, "\n");
- strcat(bp, " <");
+ strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev " AIC79XX_DRIVER_VERSION "\n"
+ " <");
strcat(bp, ahd->description);
- strcat(bp, ">\n");
- strcat(bp, " ");
+ strcat(bp, ">\n"
+ " ");
ahd_controller_info(ahd, ahd_info);
strcat(bp, ahd_info);
- strcat(bp, "\n");
return (bp);
}
return rtn;
}
-static inline struct scsi_target **
+static struct scsi_target **
ahd_linux_target_in_softc(struct scsi_target *starget)
{
struct ahd_softc *ahd =
{
struct ahd_softc *ahd =
*((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata);
+ struct seeprom_config *sc = ahd->seep_config;
unsigned long flags;
struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget);
- struct ahd_linux_target *targ = scsi_transport_target_data(starget);
struct ahd_devinfo devinfo;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
BUG_ON(*ahd_targp != NULL);
*ahd_targp = starget;
- memset(targ, 0, sizeof(*targ));
+
+ if (sc) {
+ int flags = sc->device_flags[starget->id];
+
+ tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
+ starget->id, &tstate);
+
+ if ((flags & CFPACKETIZED) == 0) {
+ /* don't negotiate packetized (IU) transfers */
+ spi_max_iu(starget) = 0;
+ } else {
+ if ((ahd->features & AHD_RTI) == 0)
+ spi_rti(starget) = 0;
+ }
+
+ if ((flags & CFQAS) == 0)
+ spi_max_qas(starget) = 0;
+
+ /* Transinfo values have been set to BIOS settings */
+ spi_max_width(starget) = (flags & CFWIDEB) ? 1 : 0;
+ spi_min_period(starget) = tinfo->user.period;
+ spi_max_offset(starget) = tinfo->user.offset;
+ }
tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id,
starget->id, &tstate);
ahd_compile_devinfo(&devinfo, ahd->our_id, starget->id,
CAM_LUN_WILDCARD, channel,
ROLE_INITIATOR);
- spi_min_period(starget) = AHD_SYNCRATE_MAX; /* We can do U320 */
- if ((ahd->bugs & AHD_PACED_NEGTABLE_BUG) != 0)
- spi_max_offset(starget) = MAX_OFFSET_PACED_BUG;
- else
- spi_max_offset(starget) = MAX_OFFSET_PACED;
- spi_max_width(starget) = ahd->features & AHD_WIDE;
-
ahd_set_syncrate(ahd, &devinfo, 0, 0, 0,
AHD_TRANS_GOAL, /*paused*/FALSE);
ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT,
{
struct ahd_softc *ahd =
*((struct ahd_softc **)sdev->host->hostdata);
- struct scsi_target *starget = sdev->sdev_target;
- struct ahd_linux_target *targ = scsi_transport_target_data(starget);
struct ahd_linux_device *dev;
if (bootverbose)
printf("%s: Slave Alloc %d\n", ahd_name(ahd), sdev->id);
- BUG_ON(targ->sdev[sdev->lun] != NULL);
-
dev = scsi_transport_device_data(sdev);
memset(dev, 0, sizeof(*dev));
*/
dev->maxtags = 0;
- targ->sdev[sdev->lun] = sdev;
-
return (0);
}
return 0;
}
-static void
-ahd_linux_slave_destroy(struct scsi_device *sdev)
-{
- struct ahd_softc *ahd;
- struct ahd_linux_device *dev = scsi_transport_device_data(sdev);
- struct ahd_linux_target *targ = scsi_transport_target_data(sdev->sdev_target);
-
- ahd = *((struct ahd_softc **)sdev->host->hostdata);
- if (bootverbose)
- printf("%s: Slave Destroy %d\n", ahd_name(ahd), sdev->id);
-
- BUG_ON(dev->active);
-
- targ->sdev[sdev->lun] = NULL;
-
-}
-
#if defined(__i386__)
/*
* Return the disk geometry for the given SCSI device.
ahd_linux_abort(struct scsi_cmnd *cmd)
{
int error;
+
+ error = ahd_linux_queue_abort_cmd(cmd);
- error = ahd_linux_queue_recovery_cmd(cmd, SCB_ABORT);
- if (error != 0)
- printf("aic79xx_abort returns 0x%x\n", error);
return error;
}
static int
ahd_linux_dev_reset(struct scsi_cmnd *cmd)
{
- int error;
+ struct ahd_softc *ahd;
+ struct ahd_linux_device *dev;
+ struct scb *reset_scb;
+ u_int cdb_byte;
+ int retval = SUCCESS;
+ int paused;
+ int wait;
+ struct ahd_initiator_tinfo *tinfo;
+ struct ahd_tmode_tstate *tstate;
+ unsigned long flags;
+ DECLARE_COMPLETION_ONSTACK(done);
- error = ahd_linux_queue_recovery_cmd(cmd, SCB_DEVICE_RESET);
- if (error != 0)
- printf("aic79xx_dev_reset returns 0x%x\n", error);
- return error;
+ reset_scb = NULL;
+ paused = FALSE;
+ wait = FALSE;
+ ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
+
+ scmd_printk(KERN_INFO, cmd,
+ "Attempting to queue a TARGET RESET message:");
+
+ printf("CDB:");
+ for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++)
+ printf(" 0x%x", cmd->cmnd[cdb_byte]);
+ printf("\n");
+
+ /*
+ * Determine if we currently own this command.
+ */
+ dev = scsi_transport_device_data(cmd->device);
+
+ if (dev == NULL) {
+ /*
+ * No target device for this command exists,
+ * so we must not still own the command.
+ */
+ scmd_printk(KERN_INFO, cmd, "Is not an active device\n");
+ return SUCCESS;
+ }
+
+ /*
+ * Generate us a new SCB
+ */
+ reset_scb = ahd_get_scb(ahd, AHD_NEVER_COL_IDX);
+ if (!reset_scb) {
+ scmd_printk(KERN_INFO, cmd, "No SCB available\n");
+ return FAILED;
+ }
+
+ tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
+ cmd->device->id, &tstate);
+ reset_scb->io_ctx = cmd;
+ reset_scb->platform_data->dev = dev;
+ reset_scb->sg_count = 0;
+ ahd_set_residual(reset_scb, 0);
+ ahd_set_sense_residual(reset_scb, 0);
+ reset_scb->platform_data->xfer_len = 0;
+ reset_scb->hscb->control = 0;
+ reset_scb->hscb->scsiid = BUILD_SCSIID(ahd,cmd);
+ reset_scb->hscb->lun = cmd->device->lun;
+ reset_scb->hscb->cdb_len = 0;
+ reset_scb->hscb->task_management = SIU_TASKMGMT_LUN_RESET;
+ reset_scb->flags |= SCB_DEVICE_RESET|SCB_RECOVERY_SCB|SCB_ACTIVE;
+ if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
+ reset_scb->flags |= SCB_PACKETIZED;
+ } else {
+ reset_scb->hscb->control |= MK_MESSAGE;
+ }
+ dev->openings--;
+ dev->active++;
+ dev->commands_issued++;
+
+ ahd_lock(ahd, &flags);
+
+ LIST_INSERT_HEAD(&ahd->pending_scbs, reset_scb, pending_links);
+ ahd_queue_scb(ahd, reset_scb);
+
+ ahd->platform_data->eh_done = &done;
+ ahd_unlock(ahd, &flags);
+
+ printf("%s: Device reset code sleeping\n", ahd_name(ahd));
+ if (!wait_for_completion_timeout(&done, 5 * HZ)) {
+ ahd_lock(ahd, &flags);
+ ahd->platform_data->eh_done = NULL;
+ ahd_unlock(ahd, &flags);
+ printf("%s: Device reset timer expired (active %d)\n",
+ ahd_name(ahd), dev->active);
+ retval = FAILED;
+ }
+ printf("%s: Device reset returning 0x%x\n", ahd_name(ahd), retval);
+
+ return (retval);
}
/*
{
struct ahd_softc *ahd;
int found;
+ unsigned long flags;
ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
#ifdef AHD_DEBUG
printf("%s: Bus reset called for cmd %p\n",
ahd_name(ahd), cmd);
#endif
+ ahd_lock(ahd, &flags);
+
found = ahd_reset_channel(ahd, scmd_channel(cmd) + 'A',
/*initiate reset*/TRUE);
+ ahd_unlock(ahd, &flags);
if (bootverbose)
printf("%s: SCSI bus reset delivered. "
#endif
.can_queue = AHD_MAX_QUEUE,
.this_id = -1,
+ .max_sectors = 8192,
.cmd_per_lun = 2,
.use_clustering = ENABLE_CLUSTERING,
.slave_alloc = ahd_linux_slave_alloc,
.slave_configure = ahd_linux_slave_configure,
- .slave_destroy = ahd_linux_slave_destroy,
.target_alloc = ahd_linux_target_alloc,
.target_destroy = ahd_linux_target_destroy,
};
}
/********************* Platform Dependent Functions ***************************/
-/*
- * Compare "left hand" softc with "right hand" softc, returning:
- * < 0 - lahd has a lower priority than rahd
- * 0 - Softcs are equal
- * > 0 - lahd has a higher priority than rahd
- */
-int
-ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd)
-{
- int value;
-
- /*
- * Under Linux, cards are ordered as follows:
- * 1) PCI devices that are marked as the boot controller.
- * 2) PCI devices with BIOS enabled sorted by bus/slot/func.
- * 3) All remaining PCI devices sorted by bus/slot/func.
- */
-#if 0
- value = (lahd->flags & AHD_BOOT_CHANNEL)
- - (rahd->flags & AHD_BOOT_CHANNEL);
- if (value != 0)
- /* Controllers set for boot have a *higher* priority */
- return (value);
-#endif
-
- value = (lahd->flags & AHD_BIOS_ENABLED)
- - (rahd->flags & AHD_BIOS_ENABLED);
- if (value != 0)
- /* Controllers with BIOS enabled have a *higher* priority */
- return (value);
-
- /* Still equal. Sort by bus/slot/func. */
- if (aic79xx_reverse_scan != 0)
- value = ahd_get_pci_bus(lahd->dev_softc)
- - ahd_get_pci_bus(rahd->dev_softc);
- else
- value = ahd_get_pci_bus(rahd->dev_softc)
- - ahd_get_pci_bus(lahd->dev_softc);
- if (value != 0)
- return (value);
- if (aic79xx_reverse_scan != 0)
- value = ahd_get_pci_slot(lahd->dev_softc)
- - ahd_get_pci_slot(rahd->dev_softc);
- else
- value = ahd_get_pci_slot(rahd->dev_softc)
- - ahd_get_pci_slot(lahd->dev_softc);
- if (value != 0)
- return (value);
-
- value = rahd->channel - lahd->channel;
- return (value);
-}
-
static void
ahd_linux_setup_iocell_info(u_long index, int instance, int targ, int32_t value)
{
if ((instance >= 0)
- && (instance < NUM_ELEMENTS(aic79xx_iocell_info))) {
+ && (instance < ARRAY_SIZE(aic79xx_iocell_info))) {
uint8_t *iocell_info;
iocell_info = (uint8_t*)&aic79xx_iocell_info[instance];
tags = simple_strtoul(p + 1, NULL, 0) & 0xff;
printf("Setting Global Tags= %d\n", tags);
- for (i = 0; i < NUM_ELEMENTS(aic79xx_tag_info); i++) {
+ for (i = 0; i < ARRAY_SIZE(aic79xx_tag_info); i++) {
for (j = 0; j < AHD_NUM_TARGETS; j++) {
aic79xx_tag_info[i].tag_commands[j] = tags;
}
{
if ((instance >= 0) && (targ >= 0)
- && (instance < NUM_ELEMENTS(aic79xx_tag_info))
+ && (instance < ARRAY_SIZE(aic79xx_tag_info))
&& (targ < AHD_NUM_TARGETS)) {
aic79xx_tag_info[instance].tag_commands[targ] = value & 0x1FF;
if (bootverbose)
char *p;
char *end;
- static struct {
+ static const struct {
const char *name;
uint32_t *flag;
} options[] = {
#ifdef AHD_DEBUG
{ "debug", &ahd_debug },
#endif
- { "reverse_scan", &aic79xx_reverse_scan },
{ "periodic_otag", &aic79xx_periodic_otag },
{ "pci_parity", &aic79xx_pci_parity },
{ "seltime", &aic79xx_seltime },
end = strchr(s, '\0');
/*
- * XXX ia64 gcc isn't smart enough to know that NUM_ELEMENTS
+ * XXX ia64 gcc isn't smart enough to know that ARRAY_SIZE
* will never be 0 in this case.
- */
- n = 0;
+ */
+ n = 0;
while ((p = strsep(&s, ",.")) != NULL) {
if (*p == '\0')
continue;
- for (i = 0; i < NUM_ELEMENTS(options); i++) {
+ for (i = 0; i < ARRAY_SIZE(options); i++) {
n = strlen(options[i].name);
if (strncmp(options[i].name, p, n) == 0)
break;
}
- if (i == NUM_ELEMENTS(options))
+ if (i == ARRAY_SIZE(options))
continue;
if (strncmp(p, "global_tag_depth", n) == 0) {
return 0;
}
-uint64_t
-ahd_linux_get_memsize(void)
-{
- struct sysinfo si;
-
- si_meminfo(&si);
- return ((uint64_t)si.totalram << PAGE_SHIFT);
-}
-
/*
* Place the SCSI bus into a known state by either resetting it,
* or forcing transfer negotiations on the next command to any
ahd_platform_free(struct ahd_softc *ahd)
{
struct scsi_target *starget;
- int i, j;
+ int i;
if (ahd->platform_data != NULL) {
/* destroy all of the device and target objects */
for (i = 0; i < AHD_NUM_TARGETS; i++) {
starget = ahd->platform_data->starget[i];
if (starget != NULL) {
- for (j = 0; j < AHD_NUM_LUNS; j++) {
- struct ahd_linux_target *targ =
- scsi_transport_target_data(starget);
- if (targ->sdev[j] == NULL)
- continue;
- targ->sdev[j] = NULL;
- }
ahd->platform_data->starget[i] = NULL;
}
}
/*
* Lookup and commit any modified IO Cell options.
*/
- if (ahd->unit < NUM_ELEMENTS(aic79xx_iocell_info)) {
- struct ahd_linux_iocell_opts *iocell_opts;
+ if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) {
+ const struct ahd_linux_iocell_opts *iocell_opts;
iocell_opts = &aic79xx_iocell_info[ahd->unit];
if (iocell_opts->precomp != AIC79XX_DEFAULT_PRECOMP)
}
void
-ahd_platform_set_tags(struct ahd_softc *ahd, struct ahd_devinfo *devinfo,
- ahd_queue_alg alg)
+ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev,
+ struct ahd_devinfo *devinfo, ahd_queue_alg alg)
{
- struct scsi_target *starget;
- struct ahd_linux_target *targ;
struct ahd_linux_device *dev;
- struct scsi_device *sdev;
int was_queuing;
int now_queuing;
- starget = ahd->platform_data->starget[devinfo->target];
- targ = scsi_transport_target_data(starget);
- BUG_ON(targ == NULL);
- sdev = targ->sdev[devinfo->lun];
if (sdev == NULL)
return;
switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) {
case AHD_DEV_Q_BASIC:
- scsi_adjust_queue_depth(sdev,
- MSG_SIMPLE_TASK,
- dev->openings + dev->active);
+ scsi_set_tag_type(sdev, MSG_SIMPLE_TASK);
+ scsi_activate_tcq(sdev, dev->openings + dev->active);
break;
case AHD_DEV_Q_TAGGED:
- scsi_adjust_queue_depth(sdev,
- MSG_ORDERED_TASK,
- dev->openings + dev->active);
+ scsi_set_tag_type(sdev, MSG_ORDERED_TASK);
+ scsi_activate_tcq(sdev, dev->openings + dev->active);
break;
default:
/*
* serially on the controller/device. This should
* remove some latency.
*/
- scsi_adjust_queue_depth(sdev,
- /*NON-TAGGED*/0,
- /*queue depth*/2);
+ scsi_deactivate_tcq(sdev, 1);
break;
}
}
tags = 0;
if ((ahd->user_discenable & devinfo->target_mask) != 0) {
- if (ahd->unit >= NUM_ELEMENTS(aic79xx_tag_info)) {
+ if (ahd->unit >= ARRAY_SIZE(aic79xx_tag_info)) {
if (warned_user == 0) {
printf(KERN_WARNING
tags = ahd_linux_user_tagdepth(ahd, &devinfo);
if (tags != 0 && sdev->tagged_supported != 0) {
- ahd_set_tags(ahd, &devinfo, AHD_QUEUE_TAGGED);
+ ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_TAGGED);
+ ahd_send_async(ahd, devinfo.channel, devinfo.target,
+ devinfo.lun, AC_TRANSFER_NEG);
ahd_print_devinfo(ahd, &devinfo);
printf("Tagged Queuing enabled. Depth %d\n", tags);
} else {
- ahd_set_tags(ahd, &devinfo, AHD_QUEUE_NONE);
+ ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_NONE);
+ ahd_send_async(ahd, devinfo.channel, devinfo.target,
+ devinfo.lun, AC_TRANSFER_NEG);
}
}
u_int col_idx;
uint16_t mask;
unsigned long flags;
+ int nseg;
+
+ nseg = scsi_dma_map(cmd);
+ if (nseg < 0)
+ return SCSI_MLQUEUE_HOST_BUSY;
ahd_lock(ahd, &flags);
if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
ahd->flags |= AHD_RESOURCE_SHORTAGE;
ahd_unlock(ahd, &flags);
+ scsi_dma_unmap(cmd);
return SCSI_MLQUEUE_HOST_BUSY;
}
if ((tstate->auto_negotiate & mask) != 0) {
scb->flags |= SCB_AUTO_NEGOTIATE;
scb->hscb->control |= MK_MESSAGE;
- } else if (cmd->cmnd[0] == INQUIRY
- && (tinfo->curr.offset != 0
- || tinfo->curr.width != MSG_EXT_WDTR_BUS_8_BIT
- || tinfo->curr.ppr_options != 0)
- && (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ)==0) {
- /*
- * The SCSI spec requires inquiry
- * commands to complete without
- * reporting unit attention conditions.
- * Because of this, an inquiry command
- * that occurs just after a device is
- * reset will result in a data phase
- * with mismatched negotiated rates.
- * The core already forces a renegotiation
- * for reset events that are visible to
- * our controller or that we initiate,
- * but a third party device reset or a
- * hot-plug insertion can still cause this
- * issue. Therefore, we force a re-negotiation
- * for every inquiry command unless we
- * are async.
- */
- scb->flags |= SCB_NEGOTIATE;
- scb->hscb->control |= MK_MESSAGE;
}
if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) != 0) {
ahd_set_residual(scb, 0);
ahd_set_sense_residual(scb, 0);
scb->sg_count = 0;
- if (cmd->use_sg != 0) {
- void *sg;
- struct scatterlist *cur_seg;
- u_int nseg;
- int dir;
-
- cur_seg = (struct scatterlist *)cmd->request_buffer;
- dir = cmd->sc_data_direction;
- nseg = pci_map_sg(ahd->dev_softc, cur_seg,
- cmd->use_sg, dir);
+
+ if (nseg > 0) {
+ void *sg = scb->sg_list;
+ struct scatterlist *cur_seg;
+ int i;
+
scb->platform_data->xfer_len = 0;
- for (sg = scb->sg_list; nseg > 0; nseg--, cur_seg++) {
+
+ scsi_for_each_sg(cmd, cur_seg, nseg, i) {
dma_addr_t addr;
bus_size_t len;
len = sg_dma_len(cur_seg);
scb->platform_data->xfer_len += len;
sg = ahd_sg_setup(ahd, scb, sg, addr, len,
- /*last*/nseg == 1);
+ i == (nseg - 1));
}
- } else if (cmd->request_bufflen != 0) {
- void *sg;
- dma_addr_t addr;
- int dir;
-
- sg = scb->sg_list;
- dir = cmd->sc_data_direction;
- addr = pci_map_single(ahd->dev_softc,
- cmd->request_buffer,
- cmd->request_bufflen, dir);
- scb->platform_data->xfer_len = cmd->request_bufflen;
- scb->platform_data->buf_busaddr = addr;
- sg = ahd_sg_setup(ahd, scb, sg, addr,
- cmd->request_bufflen, /*last*/TRUE);
}
LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
* SCSI controller interrupt handler.
*/
irqreturn_t
-ahd_linux_isr(int irq, void *dev_id, struct pt_regs * regs)
+ahd_linux_isr(int irq, void *dev_id)
{
struct ahd_softc *ahd;
u_long flags;
}
void
-ahd_platform_flushwork(struct ahd_softc *ahd)
-{
-
-}
-
-void
ahd_send_async(struct ahd_softc *ahd, char channel,
- u_int target, u_int lun, ac_code code, void *arg)
+ u_int target, u_int lun, ac_code code)
{
switch (code) {
case AC_TRANSFER_NEG:
u_int sense_offset;
if (scb->flags & SCB_SENSE) {
- sense_size = MIN(sizeof(struct scsi_sense_data)
+ sense_size = min(sizeof(struct scsi_sense_data)
- ahd_get_sense_residual(scb),
- sizeof(cmd->sense_buffer));
+ (u_long)SCSI_SENSE_BUFFERSIZE);
sense_offset = 0;
} else {
/*
*/
siu = (struct scsi_status_iu_header *)
scb->sense_data;
- sense_size = MIN(scsi_4btoul(siu->sense_length),
- sizeof(cmd->sense_buffer));
+ sense_size = min_t(size_t,
+ scsi_4btoul(siu->sense_length),
+ SCSI_SENSE_BUFFERSIZE);
sense_offset = SIU_SENSE_OFFSET(siu);
}
- memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+ memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
memcpy(cmd->sense_buffer,
ahd_get_sense_buf(ahd, scb)
+ sense_offset, sense_size);
}
ahd_set_transaction_status(scb, CAM_REQUEUE_REQ);
ahd_set_scsi_status(scb, SCSI_STATUS_OK);
- ahd_platform_set_tags(ahd, &devinfo,
+ ahd_platform_set_tags(ahd, sdev, &devinfo,
(dev->flags & AHD_DEV_Q_BASIC)
? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED);
break;
* as if the target returned BUSY SCSI status.
*/
dev->openings = 1;
- ahd_platform_set_tags(ahd, &devinfo,
+ ahd_platform_set_tags(ahd, sdev, &devinfo,
(dev->flags & AHD_DEV_Q_BASIC)
? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED);
ahd_set_scsi_status(scb, SCSI_STATUS_BUSY);
static void
ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd)
{
+ int status;
+ int new_status = DID_OK;
+ int do_fallback = 0;
+ int scsi_status;
+
/*
* Map CAM error codes into Linux Error codes. We
* avoid the conversion so that the DV code has the
* full error information available when making
* state change decisions.
*/
- {
- uint32_t status;
- u_int new_status;
-
- status = ahd_cmd_get_transaction_status(cmd);
- switch (status) {
- case CAM_REQ_INPROG:
- case CAM_REQ_CMP:
- case CAM_SCSI_STATUS_ERROR:
- new_status = DID_OK;
- break;
- case CAM_REQ_ABORTED:
- new_status = DID_ABORT;
- break;
- case CAM_BUSY:
- new_status = DID_BUS_BUSY;
- break;
- case CAM_REQ_INVALID:
- case CAM_PATH_INVALID:
- new_status = DID_BAD_TARGET;
- break;
- case CAM_SEL_TIMEOUT:
- new_status = DID_NO_CONNECT;
- break;
- case CAM_SCSI_BUS_RESET:
- case CAM_BDR_SENT:
- new_status = DID_RESET;
- break;
- case CAM_UNCOR_PARITY:
- new_status = DID_PARITY;
- break;
- case CAM_CMD_TIMEOUT:
- new_status = DID_TIME_OUT;
- break;
- case CAM_UA_ABORT:
- case CAM_REQ_CMP_ERR:
- case CAM_AUTOSENSE_FAIL:
- case CAM_NO_HBA:
- case CAM_DATA_RUN_ERR:
- case CAM_UNEXP_BUSFREE:
- case CAM_SEQUENCE_FAIL:
- case CAM_CCB_LEN_ERR:
- case CAM_PROVIDE_FAIL:
- case CAM_REQ_TERMIO:
- case CAM_UNREC_HBA_ERROR:
- case CAM_REQ_TOO_BIG:
- new_status = DID_ERROR;
- break;
- case CAM_REQUEUE_REQ:
- new_status = DID_REQUEUE;
+
+ status = ahd_cmd_get_transaction_status(cmd);
+ switch (status) {
+ case CAM_REQ_INPROG:
+ case CAM_REQ_CMP:
+ new_status = DID_OK;
+ break;
+ case CAM_AUTOSENSE_FAIL:
+ new_status = DID_ERROR;
+ /* Fallthrough */
+ case CAM_SCSI_STATUS_ERROR:
+ scsi_status = ahd_cmd_get_scsi_status(cmd);
+
+ switch(scsi_status) {
+ case SCSI_STATUS_CMD_TERMINATED:
+ case SCSI_STATUS_CHECK_COND:
+ if ((cmd->result >> 24) != DRIVER_SENSE) {
+ do_fallback = 1;
+ } else {
+ struct scsi_sense_data *sense;
+
+ sense = (struct scsi_sense_data *)
+ cmd->sense_buffer;
+ if (sense->extra_len >= 5 &&
+ (sense->add_sense_code == 0x47
+ || sense->add_sense_code == 0x48))
+ do_fallback = 1;
+ }
break;
default:
- /* We should never get here */
- new_status = DID_ERROR;
break;
}
+ break;
+ case CAM_REQ_ABORTED:
+ new_status = DID_ABORT;
+ break;
+ case CAM_BUSY:
+ new_status = DID_BUS_BUSY;
+ break;
+ case CAM_REQ_INVALID:
+ case CAM_PATH_INVALID:
+ new_status = DID_BAD_TARGET;
+ break;
+ case CAM_SEL_TIMEOUT:
+ new_status = DID_NO_CONNECT;
+ break;
+ case CAM_SCSI_BUS_RESET:
+ case CAM_BDR_SENT:
+ new_status = DID_RESET;
+ break;
+ case CAM_UNCOR_PARITY:
+ new_status = DID_PARITY;
+ do_fallback = 1;
+ break;
+ case CAM_CMD_TIMEOUT:
+ new_status = DID_TIME_OUT;
+ do_fallback = 1;
+ break;
+ case CAM_REQ_CMP_ERR:
+ case CAM_UNEXP_BUSFREE:
+ case CAM_DATA_RUN_ERR:
+ new_status = DID_ERROR;
+ do_fallback = 1;
+ break;
+ case CAM_UA_ABORT:
+ case CAM_NO_HBA:
+ case CAM_SEQUENCE_FAIL:
+ case CAM_CCB_LEN_ERR:
+ case CAM_PROVIDE_FAIL:
+ case CAM_REQ_TERMIO:
+ case CAM_UNREC_HBA_ERROR:
+ case CAM_REQ_TOO_BIG:
+ new_status = DID_ERROR;
+ break;
+ case CAM_REQUEUE_REQ:
+ new_status = DID_REQUEUE;
+ break;
+ default:
+ /* We should never get here */
+ new_status = DID_ERROR;
+ break;
+ }
- ahd_cmd_set_transaction_status(cmd, new_status);
+ if (do_fallback) {
+ printf("%s: device overrun (status %x) on %d:%d:%d\n",
+ ahd_name(ahd), status, cmd->device->channel,
+ cmd->device->id, cmd->device->lun);
}
+ ahd_cmd_set_transaction_status(cmd, new_status);
+
cmd->scsi_done(cmd);
}
-void
+static void
ahd_freeze_simq(struct ahd_softc *ahd)
{
scsi_block_requests(ahd->platform_data->host);
}
-void
+static void
ahd_release_simq(struct ahd_softc *ahd)
{
scsi_unblock_requests(ahd->platform_data->host);
}
static int
-ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
+ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd)
{
struct ahd_softc *ahd;
struct ahd_linux_device *dev;
int paused;
int wait;
int disconnected;
- int found;
ahd_mode_state saved_modes;
unsigned long flags;
ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
scmd_printk(KERN_INFO, cmd,
- "Attempting to queue a%s message:",
- flag == SCB_ABORT ? "n ABORT" : " TARGET RESET");
+ "Attempting to queue an ABORT message:");
printf("CDB:");
for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++)
break;
}
- if (pending_scb == NULL && flag == SCB_DEVICE_RESET) {
-
- /* Any SCB for this device will do for a target reset */
- LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) {
- if (ahd_match_scb(ahd, pending_scb,
- scmd_id(cmd),
- scmd_channel(cmd) + 'A',
- CAM_LUN_WILDCARD,
- SCB_LIST_NULL, ROLE_INITIATOR))
- break;
- }
- }
-
if (pending_scb == NULL) {
scmd_printk(KERN_INFO, cmd, "Command not found\n");
goto no_cmd;
ahd_dump_card_state(ahd);
disconnected = TRUE;
- if (flag == SCB_ABORT) {
- if (ahd_search_qinfifo(ahd, cmd->device->id,
- cmd->device->channel + 'A',
- cmd->device->lun,
- pending_scb->hscb->tag,
- ROLE_INITIATOR, CAM_REQ_ABORTED,
- SEARCH_COMPLETE) > 0) {
- printf("%s:%d:%d:%d: Cmd aborted from QINFIFO\n",
- ahd_name(ahd), cmd->device->channel,
- cmd->device->id, cmd->device->lun);
- retval = SUCCESS;
- goto done;
- }
- } else if (ahd_search_qinfifo(ahd, cmd->device->id,
- cmd->device->channel + 'A',
- cmd->device->lun, pending_scb->hscb->tag,
- ROLE_INITIATOR, /*status*/0,
- SEARCH_COUNT) > 0) {
- disconnected = FALSE;
+ if (ahd_search_qinfifo(ahd, cmd->device->id,
+ cmd->device->channel + 'A',
+ cmd->device->lun,
+ pending_scb->hscb->tag,
+ ROLE_INITIATOR, CAM_REQ_ABORTED,
+ SEARCH_COMPLETE) > 0) {
+ printf("%s:%d:%d:%d: Cmd aborted from QINFIFO\n",
+ ahd_name(ahd), cmd->device->channel,
+ cmd->device->id, cmd->device->lun);
+ retval = SUCCESS;
+ goto done;
}
saved_modes = ahd_save_modes(ahd);
last_phase = ahd_inb(ahd, LASTPHASE);
saved_scbptr = ahd_get_scbptr(ahd);
active_scbptr = saved_scbptr;
- if (disconnected && ((last_phase != P_BUSFREE) ||
- (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0)) {
+ if (disconnected && (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0) {
struct scb *bus_scb;
bus_scb = ahd_lookup_scb(ahd, active_scbptr);
if (bus_scb == pending_scb)
disconnected = FALSE;
- else if (flag != SCB_ABORT
- && ahd_inb(ahd, SAVED_SCSIID) == pending_scb->hscb->scsiid
- && ahd_inb(ahd, SAVED_LUN) == SCB_GET_LUN(pending_scb))
- disconnected = FALSE;
}
/*
* bus or is in the disconnected state.
*/
saved_scsiid = ahd_inb(ahd, SAVED_SCSIID);
- if (SCB_GET_TAG(pending_scb) == active_scbptr
- || (flag == SCB_DEVICE_RESET
- && SCSIID_TARGET(ahd, saved_scsiid) == scmd_id(cmd))) {
+ if (last_phase != P_BUSFREE
+ && SCB_GET_TAG(pending_scb) == active_scbptr) {
/*
* We're active on the bus, so assert ATN
* and hope that the target responds.
*/
pending_scb = ahd_lookup_scb(ahd, active_scbptr);
- pending_scb->flags |= SCB_RECOVERY_SCB|SCB_DEVICE_RESET;
+ pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT;
ahd_outb(ahd, MSG_OUT, HOST_MSG);
ahd_outb(ahd, SCSISIGO, last_phase|ATNO);
- scmd_printk(KERN_INFO, cmd, "BDR message in message buffer\n");
+ scmd_printk(KERN_INFO, cmd, "Device is active, asserting ATN\n");
wait = TRUE;
- } else if (last_phase != P_BUSFREE
- && ahd_inb(ahd, SCSIPHASE) == 0) {
- /*
- * SCB is not identified, there
- * is no pending REQ, and the sequencer
- * has not seen a busfree. Looks like
- * a stuck connection waiting to
- * go busfree. Reset the bus.
- */
- found = ahd_reset_channel(ahd, cmd->device->channel + 'A',
- /*Initiate Reset*/TRUE);
- printf("%s: Issued Channel %c Bus Reset. "
- "%d SCBs aborted\n", ahd_name(ahd),
- cmd->device->channel + 'A', found);
} else if (disconnected) {
/*
* Actually re-queue this SCB in an attempt
* to select the device before it reconnects.
*/
- pending_scb->flags |= SCB_RECOVERY_SCB|flag;
+ pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT;
ahd_set_scbptr(ahd, SCB_GET_TAG(pending_scb));
pending_scb->hscb->cdb_len = 0;
pending_scb->hscb->task_attribute = 0;
/*
* The sequencer will never re-reference the
* in-core SCB. To make sure we are notified
- * during reslection, set the MK_MESSAGE flag in
+ * during reselection, set the MK_MESSAGE flag in
* the card's copy of the SCB.
*/
ahd_outb(ahd, SCB_CONTROL,
if (paused)
ahd_unpause(ahd);
if (wait) {
- DECLARE_COMPLETION(done);
+ DECLARE_COMPLETION_ONSTACK(done);
ahd->platform_data->eh_done = &done;
ahd_unlock(ahd, &flags);
if (period < 8)
period = 8;
if (period < 10) {
- ppr_options |= MSG_EXT_PPR_DT_REQ;
- if (period == 8)
- ppr_options |= MSG_EXT_PPR_IU_REQ;
+ if (spi_max_width(starget)) {
+ ppr_options |= MSG_EXT_PPR_DT_REQ;
+ if (period == 8)
+ ppr_options |= MSG_EXT_PPR_IU_REQ;
+ } else
+ period = 10;
}
dt = ppr_options & MSG_EXT_PPR_DT_REQ;
printf("%s: %s DT\n", ahd_name(ahd),
dt ? "enabling" : "disabling");
#endif
- if (dt) {
+ if (dt && spi_max_width(starget)) {
ppr_options |= MSG_EXT_PPR_DT_REQ;
if (!width)
ahd_linux_set_width(starget, 1);
iu ? "enabling" : "disabling");
#endif
- if (iu) {
+ if (iu && spi_max_width(starget)) {
ppr_options |= MSG_EXT_PPR_IU_REQ;
ppr_options |= MSG_EXT_PPR_DT_REQ; /* IU requires DT */
}
rdstrm ? "enabling" : "disabling");
#endif
- if (rdstrm)
+ if (rdstrm && spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_RD_STRM;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
wrflow ? "enabling" : "disabling");
#endif
- if (wrflow)
+ if (wrflow && spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_WR_FLOW;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
rti ? "enabling" : "disabling");
#endif
- if (rti)
+ if (rti && spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_RTI;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
pcomp ? "Enable" : "Disable");
#endif
- if (pcomp)
+ if (pcomp && spi_max_width(starget)) {
+ uint8_t precomp;
+
+ if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) {
+ const struct ahd_linux_iocell_opts *iocell_opts;
+
+ iocell_opts = &aic79xx_iocell_info[ahd->unit];
+ precomp = iocell_opts->precomp;
+ } else {
+ precomp = AIC79XX_DEFAULT_PRECOMP;
+ }
ppr_options |= MSG_EXT_PPR_PCOMP_EN;
+ AHD_SET_PRECOMP(ahd, precomp);
+ } else {
+ AHD_SET_PRECOMP(ahd, 0);
+ }
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
starget->channel + 'A', ROLE_INITIATOR);
unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ;
unsigned long flags;
- if (hold)
+ if (hold && spi_max_width(starget))
ppr_options |= MSG_EXT_PPR_HOLD_MCS;
ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
ahd_unlock(ahd, &flags);
}
+static void ahd_linux_get_signalling(struct Scsi_Host *shost)
+{
+ struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
+ unsigned long flags;
+ u8 mode;
+ ahd_lock(ahd, &flags);
+ ahd_pause(ahd);
+ mode = ahd_inb(ahd, SBLKCTL);
+ ahd_unpause(ahd);
+ ahd_unlock(ahd, &flags);
+
+ if (mode & ENAB40)
+ spi_signalling(shost) = SPI_SIGNAL_LVD;
+ else if (mode & ENAB20)
+ spi_signalling(shost) = SPI_SIGNAL_SE;
+ else
+ spi_signalling(shost) = SPI_SIGNAL_UNKNOWN;
+}
static struct spi_function_template ahd_linux_transport_functions = {
.set_offset = ahd_linux_set_offset,
.show_pcomp_en = 1,
.set_hold_mcs = ahd_linux_set_hold_mcs,
.show_hold_mcs = 1,
+ .get_signalling = ahd_linux_get_signalling,
};
static int __init
if (!ahd_linux_transport_template)
return -ENODEV;
- scsi_transport_reserve_target(ahd_linux_transport_template,
- sizeof(struct ahd_linux_target));
scsi_transport_reserve_device(ahd_linux_transport_template,
sizeof(struct ahd_linux_device));
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff