/*
* activate this job.
*/
- if (lp)
- sym_start_next_ccbs(np, lp, 2);
- else
- sym_put_start_queue(np, cp);
+ sym_start_next_ccbs(np, lp, 2);
return 0;
out_abort:
static int sym53c8xx_slave_alloc(struct scsi_device *sdev)
{
- struct sym_hcb *np;
- struct sym_tcb *tp;
+ struct sym_hcb *np = sym_get_hcb(sdev->host);
+ struct sym_tcb *tp = &np->target[sdev->id];
+ struct sym_lcb *lp;
if (sdev->id >= SYM_CONF_MAX_TARGET || sdev->lun >= SYM_CONF_MAX_LUN)
return -ENXIO;
- np = sym_get_hcb(sdev->host);
- tp = &np->target[sdev->id];
-
/*
* Fail the device init if the device is flagged NOSCAN at BOOT in
* the NVRAM. This may speed up boot and maintain coherency with
return -ENXIO;
}
+ lp = sym_alloc_lcb(np, sdev->id, sdev->lun);
+ if (!lp)
+ return -ENOMEM;
+
tp->starget = sdev->sdev_target;
return 0;
}
/*
* Linux entry point for device queue sizing.
*/
-static int sym53c8xx_slave_configure(struct scsi_device *device)
+static int sym53c8xx_slave_configure(struct scsi_device *sdev)
{
- struct sym_hcb *np = sym_get_hcb(device->host);
- struct sym_tcb *tp = &np->target[device->id];
- struct sym_lcb *lp;
+ struct sym_hcb *np = sym_get_hcb(sdev->host);
+ struct sym_tcb *tp = &np->target[sdev->id];
+ struct sym_lcb *lp = sym_lp(tp, sdev->lun);
int reqtags, depth_to_use;
- /*
- * Allocate the LCB if not yet.
- * If it fail, we may well be in the sh*t. :)
- */
- lp = sym_alloc_lcb(np, device->id, device->lun);
- if (!lp)
- return -ENOMEM;
-
/*
* Get user flags.
*/
* Use at least 2.
* Donnot use more than our maximum.
*/
- reqtags = device_queue_depth(np, device->id, device->lun);
+ reqtags = device_queue_depth(np, sdev->id, sdev->lun);
if (reqtags > tp->usrtags)
reqtags = tp->usrtags;
- if (!device->tagged_supported)
+ if (!sdev->tagged_supported)
reqtags = 0;
#if 1 /* Avoid to locally queue commands for no good reasons */
if (reqtags > SYM_CONF_MAX_TAG)
#else
depth_to_use = (reqtags ? SYM_CONF_MAX_TAG : 2);
#endif
- scsi_adjust_queue_depth(device,
- (device->tagged_supported ?
+ scsi_adjust_queue_depth(sdev,
+ (sdev->tagged_supported ?
MSG_SIMPLE_TAG : 0),
depth_to_use);
lp->s.scdev_depth = depth_to_use;
- sym_tune_dev_queuing(tp, device->lun, reqtags);
+ sym_tune_dev_queuing(tp, sdev->lun, reqtags);
- 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 sym53c8xx_slave_destroy(struct scsi_device *sdev)
+{
+ struct sym_hcb *np = sym_get_hcb(sdev->host);
+ struct sym_lcb *lp = sym_lp(&np->target[sdev->id], sdev->lun);
+
+ if (lp->itlq_tbl)
+ sym_mfree_dma(lp->itlq_tbl, SYM_CONF_MAX_TASK * 4, "ITLQ_TBL");
+ kfree(lp->cb_tags);
+ sym_mfree_dma(lp, sizeof(*lp), "LCB");
+}
+
/*
* Linux entry point for info() function
*/
.queuecommand = sym53c8xx_queue_command,
.slave_alloc = sym53c8xx_slave_alloc,
.slave_configure = sym53c8xx_slave_configure,
+ .slave_destroy = sym53c8xx_slave_destroy,
.eh_abort_handler = sym53c8xx_eh_abort_handler,
.eh_device_reset_handler = sym53c8xx_eh_device_reset_handler,
.eh_bus_reset_handler = sym53c8xx_eh_bus_reset_handler,
/*
* Insert a job into the start queue.
*/
-void sym_put_start_queue(struct sym_hcb *np, struct sym_ccb *cp)
+static void sym_put_start_queue(struct sym_hcb *np, struct sym_ccb *cp)
{
u_short qidx;
goto out;
cp = sym_que_entry(qp, struct sym_ccb, link_ccbq);
-#ifndef SYM_OPT_HANDLE_DEVICE_QUEUEING
- /*
- * If the LCB is not yet available and the LUN
- * has been probed ok, try to allocate the LCB.
- */
- if (!lp && sym_is_bit(tp->lun_map, ln)) {
- lp = sym_alloc_lcb(np, tn, ln);
- if (!lp)
- goto out_free;
- }
-#endif
-
- /*
- * If the LCB is not available here, then the
- * logical unit is not yet discovered. For those
- * ones only accept 1 SCSI IO per logical unit,
- * since we cannot allow disconnections.
- */
- if (!lp) {
- if (!sym_is_bit(tp->busy0_map, ln))
- sym_set_bit(tp->busy0_map, ln);
- else
- goto out_free;
- } else {
+ {
/*
* If we have been asked for a tagged command.
*/
lp->head.resel_sa =
cpu_to_scr(SCRIPTB_BA(np, resel_bad_lun));
}
- /*
- * Otherwise, we only accept 1 IO per LUN.
- * Clear the bit that keeps track of this IO.
- */
- else
- sym_clr_bit(tp->busy0_map, cp->lun);
/*
* We donnot queue more than 1 ccb per target
struct sym_lcb *sym_alloc_lcb (struct sym_hcb *np, u_char tn, u_char ln)
{
struct sym_tcb *tp = &np->target[tn];
- struct sym_lcb *lp = sym_lp(tp, ln);
-
- /*
- * Already done, just return.
- */
- if (lp)
- return lp;
-
- /*
- * Donnot allow LUN control block
- * allocation for not probed LUNs.
- */
- if (!sym_is_bit(tp->lun_map, ln))
- return NULL;
+ struct sym_lcb *lp = NULL;
/*
* Initialize the target control block if not yet.
lp->started_max = SYM_CONF_MAX_TASK;
lp->started_limit = SYM_CONF_MAX_TASK;
#endif
- /*
- * If we are busy, count the IO.
- */
- if (sym_is_bit(tp->busy0_map, ln)) {
- lp->busy_itl = 1;
- sym_clr_bit(tp->busy0_map, ln);
- }
+
fail:
return lp;
}
struct sym_lcb *lp = sym_lp(tp, ln);
int i;
- /*
- * If LCB not available, try to allocate it.
- */
- if (!lp && !(lp = sym_alloc_lcb(np, tn, ln)))
- goto fail;
-
/*
* Allocate the task table and and the tag allocation
* circular buffer. We want both or none.
/*
* Donnot start more than 1 command after an error.
*/
- if (lp)
- sym_start_next_ccbs(np, lp, 1);
+ sym_start_next_ccbs(np, lp, 1);
#endif
}
tp = &np->target[cp->target];
lp = sym_lp(tp, cp->lun);
- /*
- * Assume device discovered on first success.
- */
- if (!lp)
- sym_set_bit(tp->lun_map, cp->lun);
-
/*
* If all data have been transferred, given than no
* extended error did occur, there is no residual.
/*
* Requeue a couple of awaiting scsi commands.
*/
- if (lp && !sym_que_empty(&lp->waiting_ccbq))
+ if (!sym_que_empty(&lp->waiting_ccbq))
sym_start_next_ccbs(np, lp, 2);
#endif
/*
SYM_QUEHEAD *qp;
struct sym_ccb *cp;
struct sym_tcb *tp;
- struct sym_lcb *lp;
- int target, lun;
+ int target;
if (np->scriptz0)
sym_mfree_dma(np->scriptz0, np->scriptz_sz, "SCRIPTZ0");
for (target = 0; target < SYM_CONF_MAX_TARGET ; target++) {
tp = &np->target[target];
- for (lun = 0 ; lun < SYM_CONF_MAX_LUN ; lun++) {
- lp = sym_lp(tp, lun);
- if (!lp)
- continue;
- if (lp->itlq_tbl)
- sym_mfree_dma(lp->itlq_tbl, SYM_CONF_MAX_TASK*4,
- "ITLQ_TBL");
- kfree(lp->cb_tags);
- sym_mfree_dma(lp, sizeof(*lp), "LCB");
- }
#if SYM_CONF_MAX_LUN > 1
kfree(tp->lunmp);
#endif
struct sym_lcb **lunmp; /* Other LCBs [1..MAX_LUN] */
#endif
- /*
- * Bitmap that tells about LUNs that succeeded at least
- * 1 IO and therefore assumed to be a real device.
- * Avoid useless allocation of the LCB structure.
- */
- u32 lun_map[(SYM_CONF_MAX_LUN+31)/32];
-
- /*
- * Bitmap that tells about LUNs that haven't yet an LCB
- * allocated (not discovered or LCB allocation failed).
- */
- u32 busy0_map[(SYM_CONF_MAX_LUN+31)/32];
-
#ifdef SYM_HAVE_STCB
/*
* O/S specific data structure.
void sym_print_xerr(struct scsi_cmnd *cmd, int x_status);
int sym_reset_scsi_bus(struct sym_hcb *np, int enab_int);
struct sym_chip *sym_lookup_chip_table(u_short device_id, u_char revision);
-void sym_put_start_queue(struct sym_hcb *np, struct sym_ccb *cp);
#ifdef SYM_OPT_HANDLE_DEVICE_QUEUEING
void sym_start_next_ccbs(struct sym_hcb *np, struct sym_lcb *lp, int maxn);
#endif
projects / linux-2.6 / commitdiff