*/
int sym_setup_data_and_start(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp)
{
- int dir;
struct sym_tcb *tp = &np->target[cp->target];
struct sym_lcb *lp = sym_lp(tp, cp->lun);
+ u32 lastp, goalp;
+ int dir;
/*
* Build the CDB.
sym_set_cam_status(cmd, DID_ERROR);
goto out_abort;
}
+
+ /*
+ * No segments means no data.
+ */
+ if (!cp->segments)
+ dir = DMA_NONE;
} else {
cp->data_len = 0;
cp->segments = 0;
}
/*
- * Set data pointers.
+ * Set the data pointer.
*/
- sym_setup_data_pointers(np, cp, dir);
+ switch (dir) {
+ case DMA_BIDIRECTIONAL:
+ printk("%s: got DMA_BIDIRECTIONAL command", sym_name(np));
+ sym_set_cam_status(cmd, DID_ERROR);
+ goto out_abort;
+ case DMA_TO_DEVICE:
+ goalp = SCRIPTA_BA(np, data_out2) + 8;
+ lastp = goalp - 8 - (cp->segments * (2*4));
+ break;
+ case DMA_FROM_DEVICE:
+ cp->host_flags |= HF_DATA_IN;
+ goalp = SCRIPTA_BA(np, data_in2) + 8;
+ lastp = goalp - 8 - (cp->segments * (2*4));
+ break;
+ case DMA_NONE:
+ default:
+ lastp = goalp = SCRIPTB_BA(np, no_data);
+ break;
+ }
+
+ /*
+ * Set all pointers values needed by SCRIPTS.
+ */
+ cp->phys.head.lastp = cpu_to_scr(lastp);
+ cp->phys.head.savep = cpu_to_scr(lastp);
+ cp->startp = cp->phys.head.savep;
+ cp->goalp = cpu_to_scr(goalp);
/*
* When `#ifed 1', the code below makes the driver
/*
* 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,
tp->tgoal.check_nego = 1;
}
+#if 0
static void sym2_set_iu(struct scsi_target *starget, int iu)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
tp->tgoal.qas = 0;
tp->tgoal.check_nego = 1;
}
-
+#endif
static struct spi_function_template sym2_transport_functions = {
.set_offset = sym2_set_offset,
.show_width = 1,
.set_dt = sym2_set_dt,
.show_dt = 1,
+#if 0
.set_iu = sym2_set_iu,
.show_iu = 1,
.set_qas = sym2_set_qas,
.show_qas = 1,
+#endif
.get_signalling = sym2_get_signalling,
};
projects / linux-2.6 / blobdiff