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path: root/drivers/scsi/sym53c8xx_2/sym_hipd.c
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Diffstat (limited to 'drivers/scsi/sym53c8xx_2/sym_hipd.c')
-rw-r--r--drivers/scsi/sym53c8xx_2/sym_hipd.c49
1 files changed, 48 insertions, 1 deletions
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index ffa70d1ed182..69ad4945c936 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -1896,6 +1896,15 @@ void sym_start_up(struct Scsi_Host *shost, int reason)
tp->head.sval = 0;
tp->head.wval = np->rv_scntl3;
tp->head.uval = 0;
+ if (tp->lun0p)
+ tp->lun0p->to_clear = 0;
+ if (tp->lunmp) {
+ int ln;
+
+ for (ln = 1; ln < SYM_CONF_MAX_LUN; ln++)
+ if (tp->lunmp[ln])
+ tp->lunmp[ln]->to_clear = 0;
+ }
}
/*
@@ -4988,7 +4997,7 @@ struct sym_lcb *sym_alloc_lcb (struct sym_hcb *np, u_char tn, u_char ln)
*/
if (ln && !tp->lunmp) {
tp->lunmp = kcalloc(SYM_CONF_MAX_LUN, sizeof(struct sym_lcb *),
- GFP_KERNEL);
+ GFP_ATOMIC);
if (!tp->lunmp)
goto fail;
}
@@ -5008,6 +5017,7 @@ struct sym_lcb *sym_alloc_lcb (struct sym_hcb *np, u_char tn, u_char ln)
tp->lun0p = lp;
tp->head.lun0_sa = cpu_to_scr(vtobus(lp));
}
+ tp->nlcb++;
/*
* Let the itl task point to error handling.
@@ -5085,6 +5095,43 @@ fail:
}
/*
+ * Lun control block deallocation. Returns the number of valid remaing LCBs
+ * for the target.
+ */
+int sym_free_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);
+
+ tp->nlcb--;
+
+ if (ln) {
+ if (!tp->nlcb) {
+ kfree(tp->lunmp);
+ sym_mfree_dma(tp->luntbl, 256, "LUNTBL");
+ tp->lunmp = NULL;
+ tp->luntbl = NULL;
+ tp->head.luntbl_sa = cpu_to_scr(vtobus(np->badluntbl));
+ } else {
+ tp->luntbl[ln] = cpu_to_scr(vtobus(&np->badlun_sa));
+ tp->lunmp[ln] = NULL;
+ }
+ } else {
+ tp->lun0p = NULL;
+ tp->head.lun0_sa = cpu_to_scr(vtobus(&np->badlun_sa));
+ }
+
+ 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");
+
+ return tp->nlcb;
+}
+
+/*
* Queue a SCSI IO to the controller.
*/
int sym_queue_scsiio(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp)