static struct scsi_transport_template *ahd_linux_transport_template = NULL;
-/*
- * Include aiclib.c as part of our
- * "module dependencies are hard" work around.
- */
-#include "aiclib.c"
-
#include <linux/init.h> /* __setup */
#include <linux/mm.h> /* For fetching system memory size */
#include <linux/blkdev.h> /* For block_size() */
#include <linux/delay.h> /* For ssleep/msleep */
-
-/*
- * Lock protecting manipulation of the ahd softc list.
- */
-spinlock_t ahd_list_spinlock;
+#include <linux/device.h>
/*
* Bucket size for counting good commands in between bad ones.
uint32_t aic79xx_allow_memio = ~0;
/*
- * aic79xx_detect() has been run, so register all device arrivals
- * immediately with the system rather than deferring to the sorted
- * attachment performed by aic79xx_detect().
- */
-int aic79xx_detect_complete;
-
-/*
* So that we can set how long each device is given as a selection timeout.
* The table of values goes like this:
* 0 - 256ms
*/
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
+ * storage boxes have been reported to be buggy:
+ * EonStor 3U 16-Bay: U16U-G3A3
+ * EonStor 2U 12-Bay: U12U-G3A3
+ * SentinelRAID: 2500F R5 / R6
+ * SentinelRAID: 2500F R1
+ * SentinelRAID: 2500F/1500F
+ * SentinelRAID: 150F
+ *
+ * To get around this LSI bug, you can set your board to 160 mode
+ * or you can enable the SLOWCRC bit.
+ */
+uint32_t aic79xx_slowcrc;
+
/*
* Module information and settable options.
*/
" amplitude:<int> Set the signal amplitude (0-7).\n"
" seltime:<int> Selection Timeout:\n"
" (0/256ms,1/128ms,2/64ms,3/32ms)\n"
+" slowcrc Turn on the SLOWCRC bit (Rev B only)\n"
"\n"
" Sample /etc/modprobe.conf line:\n"
" Enable verbose logging\n"
struct ahd_linux_device *,
struct scsi_cmnd *);
static void ahd_linux_setup_tag_info_global(char *p);
-static aic_option_callback_t ahd_linux_setup_tag_info;
-static aic_option_callback_t ahd_linux_setup_iocell_info;
static int aic79xx_setup(char *c);
-static int ahd_linux_next_unit(void);
+
+static int ahd_linux_unit;
+
/****************************** Inlines ***************************************/
static __inline void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*);
/******************************** Macros **************************************/
#define BUILD_SCSIID(ahd, cmd) \
- ((((cmd)->device->id << TID_SHIFT) & TID) | (ahd)->our_id)
-
-/*
- * Try to detect an Adaptec 79XX controller.
- */
-static int
-ahd_linux_detect(struct scsi_host_template *template)
-{
- struct ahd_softc *ahd;
- int found;
- int error = 0;
-
- /*
- * If we've been passed any parameters, process them now.
- */
- if (aic79xx)
- aic79xx_setup(aic79xx);
-
- template->proc_name = "aic79xx";
-
- /*
- * Initialize our softc list lock prior to
- * probing for any adapters.
- */
- ahd_list_lockinit();
-
-#ifdef CONFIG_PCI
- error = ahd_linux_pci_init();
- if (error)
- return error;
-#endif
-
- /*
- * Register with the SCSI layer all
- * controllers we've found.
- */
- found = 0;
- TAILQ_FOREACH(ahd, &ahd_tailq, links) {
-
- if (ahd_linux_register_host(ahd, template) == 0)
- found++;
- }
- aic79xx_detect_complete++;
- return found;
-}
+ (((scmd_id(cmd) << TID_SHIFT) & TID) | (ahd)->our_id)
/*
* Return a string describing the driver.
{
struct ahd_softc *ahd;
struct ahd_linux_device *dev = scsi_transport_device_data(cmd->device);
+ int rtn = SCSI_MLQUEUE_HOST_BUSY;
+ unsigned long flags;
ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
- /*
- * Close the race of a command that was in the process of
- * being queued to us just as our simq was frozen. Let
- * DV commands through so long as we are only frozen to
- * perform DV.
- */
- if (ahd->platform_data->qfrozen != 0) {
- printf("%s: queue frozen\n", ahd_name(ahd));
+ ahd_lock(ahd, &flags);
+ if (ahd->platform_data->qfrozen == 0) {
+ cmd->scsi_done = scsi_done;
+ cmd->result = CAM_REQ_INPROG << 16;
+ rtn = ahd_linux_run_command(ahd, dev, cmd);
- return SCSI_MLQUEUE_HOST_BUSY;
}
-
- /*
- * Save the callback on completion function.
- */
- cmd->scsi_done = scsi_done;
-
- cmd->result = CAM_REQ_INPROG << 16;
-
- return ahd_linux_run_command(ahd, dev, cmd);
+ ahd_unlock(ahd, &flags);
+ return rtn;
}
static inline struct scsi_target **
ahd = *((struct ahd_softc **)sdev->host->hostdata);
if (bootverbose)
- printf("%s: Slave Configure %d\n", ahd_name(ahd), sdev->id);
+ sdev_printk(KERN_INFO, sdev, "Slave Configure\n");
ahd_linux_device_queue_depth(sdev);
ahd_name(ahd), cmd);
#endif
ahd_lock(ahd, &s);
- found = ahd_reset_channel(ahd, cmd->device->channel + 'A',
+ found = ahd_reset_channel(ahd, scmd_channel(cmd) + 'A',
/*initiate reset*/TRUE);
ahd_unlock(ahd, &s);
struct scsi_host_template aic79xx_driver_template = {
.module = THIS_MODULE,
.name = "aic79xx",
+ .proc_name = "aic79xx",
.proc_info = ahd_linux_proc_info,
.info = ahd_linux_info,
.queuecommand = ahd_linux_queue,
}
}
+static char *
+ahd_parse_brace_option(char *opt_name, char *opt_arg, char *end, int depth,
+ void (*callback)(u_long, int, int, int32_t),
+ u_long callback_arg)
+{
+ char *tok_end;
+ char *tok_end2;
+ int i;
+ int instance;
+ int targ;
+ int done;
+ char tok_list[] = {'.', ',', '{', '}', '\0'};
+
+ /* All options use a ':' name/arg separator */
+ if (*opt_arg != ':')
+ return (opt_arg);
+ opt_arg++;
+ instance = -1;
+ targ = -1;
+ done = FALSE;
+ /*
+ * Restore separator that may be in
+ * the middle of our option argument.
+ */
+ tok_end = strchr(opt_arg, '\0');
+ if (tok_end < end)
+ *tok_end = ',';
+ while (!done) {
+ switch (*opt_arg) {
+ case '{':
+ if (instance == -1) {
+ instance = 0;
+ } else {
+ if (depth > 1) {
+ if (targ == -1)
+ targ = 0;
+ } else {
+ printf("Malformed Option %s\n",
+ opt_name);
+ done = TRUE;
+ }
+ }
+ opt_arg++;
+ break;
+ case '}':
+ if (targ != -1)
+ targ = -1;
+ else if (instance != -1)
+ instance = -1;
+ opt_arg++;
+ break;
+ case ',':
+ case '.':
+ if (instance == -1)
+ done = TRUE;
+ else if (targ >= 0)
+ targ++;
+ else if (instance >= 0)
+ instance++;
+ opt_arg++;
+ break;
+ case '\0':
+ done = TRUE;
+ break;
+ default:
+ tok_end = end;
+ for (i = 0; tok_list[i]; i++) {
+ tok_end2 = strchr(opt_arg, tok_list[i]);
+ if ((tok_end2) && (tok_end2 < tok_end))
+ tok_end = tok_end2;
+ }
+ callback(callback_arg, instance, targ,
+ simple_strtol(opt_arg, NULL, 0));
+ opt_arg = tok_end;
+ break;
+ }
+ }
+ return (opt_arg);
+}
+
/*
* Handle Linux boot parameters. This routine allows for assigning a value
* to a parameter with a ':' between the parameter and the value.
{ "slewrate", NULL },
{ "precomp", NULL },
{ "amplitude", NULL },
+ { "slowcrc", &aic79xx_slowcrc },
};
end = strchr(s, '\0');
if (strncmp(p, "global_tag_depth", n) == 0) {
ahd_linux_setup_tag_info_global(p + n);
} else if (strncmp(p, "tag_info", n) == 0) {
- s = aic_parse_brace_option("tag_info", p + n, end,
+ s = ahd_parse_brace_option("tag_info", p + n, end,
2, ahd_linux_setup_tag_info, 0);
} else if (strncmp(p, "slewrate", n) == 0) {
- s = aic_parse_brace_option("slewrate",
+ s = ahd_parse_brace_option("slewrate",
p + n, end, 1, ahd_linux_setup_iocell_info,
AIC79XX_SLEWRATE_INDEX);
} else if (strncmp(p, "precomp", n) == 0) {
- s = aic_parse_brace_option("precomp",
+ s = ahd_parse_brace_option("precomp",
p + n, end, 1, ahd_linux_setup_iocell_info,
AIC79XX_PRECOMP_INDEX);
} else if (strncmp(p, "amplitude", n) == 0) {
- s = aic_parse_brace_option("amplitude",
+ s = ahd_parse_brace_option("amplitude",
p + n, end, 1, ahd_linux_setup_iocell_info,
AIC79XX_AMPLITUDE_INDEX);
} else if (p[n] == ':') {
struct Scsi_Host *host;
char *new_name;
u_long s;
+ int retval;
template->name = ahd->description;
host = scsi_host_alloc(template, sizeof(struct ahd_softc *));
*((struct ahd_softc **)host->hostdata) = ahd;
ahd_lock(ahd, &s);
- scsi_assign_lock(host, &ahd->platform_data->spin_lock);
ahd->platform_data->host = host;
host->can_queue = AHD_MAX_QUEUE;
host->cmd_per_lun = 2;
host->max_lun = AHD_NUM_LUNS;
host->max_channel = 0;
host->sg_tablesize = AHD_NSEG;
- ahd_set_unit(ahd, ahd_linux_next_unit());
+ ahd_set_unit(ahd, ahd_linux_unit++);
sprintf(buf, "scsi%d", host->host_no);
new_name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT);
if (new_name != NULL) {
host->transportt = ahd_linux_transport_template;
- scsi_add_host(host, &ahd->dev_softc->dev); /* XXX handle failure */
+ retval = scsi_add_host(host, &ahd->dev_softc->dev);
+ if (retval) {
+ printk(KERN_WARNING "aic79xx: scsi_add_host failed\n");
+ scsi_host_put(host);
+ return retval;
+ }
+
scsi_scan_host(host);
- return (0);
+ return 0;
}
uint64_t
}
/*
- * Find the smallest available unit number to use
- * for a new device. We don't just use a static
- * count to handle the "repeated hot-(un)plug"
- * scenario.
- */
-static int
-ahd_linux_next_unit(void)
-{
- struct ahd_softc *ahd;
- int unit;
-
- unit = 0;
-retry:
- TAILQ_FOREACH(ahd, &ahd_tailq, links) {
- if (ahd->unit == unit) {
- unit++;
- goto retry;
- }
- }
- return (unit);
-}
-
-/*
* Place the SCSI bus into a known state by either resetting it,
* or forcing transfer negotiations on the next command to any
* target.
int i, j;
if (ahd->platform_data != NULL) {
- if (ahd->platform_data->host != NULL) {
- scsi_remove_host(ahd->platform_data->host);
- scsi_host_put(ahd->platform_data->host);
- }
-
/* destroy all of the device and target objects */
for (i = 0; i < AHD_NUM_TARGETS; i++) {
starget = ahd->platform_data->starget[i];
release_mem_region(ahd->platform_data->mem_busaddr,
0x1000);
}
+ if (ahd->platform_data->host)
+ scsi_host_put(ahd->platform_data->host);
+
free(ahd->platform_data, M_DEVBUF);
}
}
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) {
int paused;
int wait;
int disconnected;
+ int found;
ahd_mode_state saved_modes;
+ unsigned long flags;
pending_scb = NULL;
paused = FALSE;
wait = FALSE;
ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
- printf("%s:%d:%d:%d: Attempting to queue a%s message:",
- ahd_name(ahd), cmd->device->channel,
- cmd->device->id, cmd->device->lun,
+ scmd_printk(KERN_INFO, cmd,
+ "Attempting to queue a%s message:",
flag == SCB_ABORT ? "n ABORT" : " TARGET RESET");
printf("CDB:");
printf(" 0x%x", cmd->cmnd[cdb_byte]);
printf("\n");
- spin_lock_irq(&ahd->platform_data->spin_lock);
+ ahd_lock(ahd, &flags);
/*
* First determine if we currently own this command.
* No target device for this command exists,
* so we must not still own the command.
*/
- printf("%s:%d:%d:%d: Is not an active device\n",
- ahd_name(ahd), cmd->device->channel, cmd->device->id,
- cmd->device->lun);
+ scmd_printk(KERN_INFO, cmd, "Is not an active device\n");
retval = SUCCESS;
goto no_cmd;
}
/* 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, cmd->device->id,
- cmd->device->channel + 'A',
+ if (ahd_match_scb(ahd, pending_scb,
+ scmd_id(cmd),
+ scmd_channel(cmd) + 'A',
CAM_LUN_WILDCARD,
- SCB_LIST_NULL, ROLE_INITIATOR) == 0)
+ SCB_LIST_NULL, ROLE_INITIATOR))
break;
}
}
if (pending_scb == NULL) {
- printf("%s:%d:%d:%d: Command not found\n",
- ahd_name(ahd), cmd->device->channel, cmd->device->id,
- cmd->device->lun);
+ scmd_printk(KERN_INFO, cmd, "Command not found\n");
goto no_cmd;
}
paused = TRUE;
if ((pending_scb->flags & SCB_ACTIVE) == 0) {
- printf("%s:%d:%d:%d: Command already completed\n",
- ahd_name(ahd), cmd->device->channel, cmd->device->id,
- cmd->device->lun);
+ scmd_printk(KERN_INFO, cmd, "Command already completed\n");
goto no_cmd;
}
last_phase = ahd_inb(ahd, LASTPHASE);
saved_scbptr = ahd_get_scbptr(ahd);
active_scbptr = saved_scbptr;
- if (disconnected && (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0) {
+ if (disconnected && ((last_phase != P_BUSFREE) ||
+ (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0)) {
struct scb *bus_scb;
bus_scb = ahd_lookup_scb(ahd, active_scbptr);
* bus or is in the disconnected state.
*/
saved_scsiid = ahd_inb(ahd, SAVED_SCSIID);
- if (last_phase != P_BUSFREE
- && (SCB_GET_TAG(pending_scb) == active_scbptr
+ if (SCB_GET_TAG(pending_scb) == active_scbptr
|| (flag == SCB_DEVICE_RESET
- && SCSIID_TARGET(ahd, saved_scsiid) == cmd->device->id))) {
+ && SCSIID_TARGET(ahd, saved_scsiid) == scmd_id(cmd))) {
/*
* 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|flag;
+ pending_scb->flags |= SCB_RECOVERY_SCB|SCB_DEVICE_RESET;
ahd_outb(ahd, MSG_OUT, HOST_MSG);
ahd_outb(ahd, SCSISIGO, last_phase|ATNO);
- printf("%s:%d:%d:%d: Device is active, asserting ATN\n",
- ahd_name(ahd), cmd->device->channel,
- cmd->device->id, cmd->device->lun);
+ scmd_printk(KERN_INFO, cmd, "BDR message in message buffer\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|SCB_ABORT;
+ pending_scb->flags |= SCB_RECOVERY_SCB|flag;
ahd_set_scbptr(ahd, SCB_GET_TAG(pending_scb));
pending_scb->hscb->cdb_len = 0;
pending_scb->hscb->task_attribute = 0;
printf("Device is disconnected, re-queuing SCB\n");
wait = TRUE;
} else {
- printf("%s:%d:%d:%d: Unable to deliver message\n",
- ahd_name(ahd), cmd->device->channel,
- cmd->device->id, cmd->device->lun);
+ scmd_printk(KERN_INFO, cmd, "Unable to deliver message\n");
retval = FAILED;
goto done;
}
int ret;
ahd->platform_data->flags |= AHD_SCB_UP_EH_SEM;
- spin_unlock_irq(&ahd->platform_data->spin_lock);
+ ahd_unlock(ahd, &flags);
+
init_timer(&timer);
timer.data = (u_long)ahd;
timer.expires = jiffies + (5 * HZ);
timer.function = ahd_linux_sem_timeout;
add_timer(&timer);
- printf("Recovery code sleeping\n");
+ printf("%s: Recovery code sleeping\n", ahd_name(ahd));
down(&ahd->platform_data->eh_sem);
- printf("Recovery code awake\n");
+ printf("%s: Recovery code awake\n", ahd_name(ahd));
ret = del_timer_sync(&timer);
if (ret == 0) {
- printf("Timer Expired\n");
+ printf("%s: Timer Expired (active %d)\n",
+ ahd_name(ahd), dev->active);
retval = FAILED;
}
- spin_lock_irq(&ahd->platform_data->spin_lock);
}
- spin_unlock_irq(&ahd->platform_data->spin_lock);
+ ahd_unlock(ahd, &flags);
return (retval);
}
.show_hold_mcs = 1,
};
-
-
static int __init
ahd_linux_init(void)
{
- ahd_linux_transport_template = spi_attach_transport(&ahd_linux_transport_functions);
+ int error = 0;
+
+ /*
+ * If we've been passed any parameters, process them now.
+ */
+ if (aic79xx)
+ aic79xx_setup(aic79xx);
+
+ ahd_linux_transport_template =
+ spi_attach_transport(&ahd_linux_transport_functions);
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));
- if (ahd_linux_detect(&aic79xx_driver_template) > 0)
- return 0;
- spi_release_transport(ahd_linux_transport_template);
- return -ENODEV;
+ error = ahd_linux_pci_init();
+ if (error)
+ spi_release_transport(ahd_linux_transport_template);
+ return error;
}
static void __exit
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff