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-rw-r--r--release/sysinstall/uc_scsi.c477
1 files changed, 477 insertions, 0 deletions
diff --git a/release/sysinstall/uc_scsi.c b/release/sysinstall/uc_scsi.c
new file mode 100644
index 0000000000000..2227bb335add6
--- /dev/null
+++ b/release/sysinstall/uc_scsi.c
@@ -0,0 +1,477 @@
+/***************************************************
+ * file: userconfig/uc_scsi.c
+ *
+ * Copyright (c) 1996 Eric L. Hernes (erich@rrnet.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software withough specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $Id$
+ */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <nlist.h>
+#include <scsi/scsiconf.h>
+
+#include "uc_main.h"
+
+/* this stuff is hidden under an #ifdef KERNEL in scsiconf.h */
+#define SCCONF_UNSPEC 255
+#define SCCONF_ANY 254
+
+struct scsi_ctlr_config {
+ int scbus;
+ char *driver;
+ int unit;
+ int bus;
+};
+
+struct scsi_device_config {
+ char *name; /* SCSI device name (sd, st, etc) */
+ int unit; /* desired device unit */
+ int cunit; /* Controller unit */
+ int target; /* SCSI ID (target) */
+ int lun; /* SCSI lun */
+ int flags; /* Flags from config */
+};
+
+/* module prototypes */
+static void get_sl_info(struct kernel *kp, struct uc_scsi *spc,
+ struct scsi_link *sl);
+
+void
+get_scsi_info(struct kernel *kp){
+ int i, j, k;
+
+ if(kp->incore){
+ if (kp->nl[SCSI_BUSSES].n_value) {
+ u_int *es, *sba;
+ struct scsibus_data *sbd;
+ int nsbd, nscsibus, total;
+ struct uc_scsi *sp, *spc;
+ struct uc_scsibus *sbp, *sbpc;
+ struct scsi_link *s_l;
+ u_int *slp;
+ char *temp;
+ struct scsi_device *sdev;
+ u_int t;
+ char name[10];
+
+ sp=(struct uc_scsi*)malloc(sizeof(struct uc_scsi));
+ total=0;
+ sbp=(struct uc_scsibus*)malloc(sizeof(struct uc_scsibus));
+ nscsibus=0;
+
+ es=(u_int *)kv_to_u(kp, kv_dref_p(kp,kp->nl[SCSI_BUSSES].n_value),
+ sizeof(u_int)*2);
+ nsbd=es[0];
+ sba=(u_int *)kv_to_u(kp, es[1], sizeof(u_int)*nsbd);
+ free(es);
+
+ for(i=0;i<nsbd;i++){
+ if(sba[i]){
+ /* first grab the adapter info */
+ sbd=(struct scsibus_data *)kv_to_u(kp, sba[i],
+ sizeof(struct scsibus_data));
+ sbp=(struct uc_scsibus *)realloc(sbp, sizeof(struct uc_scsibus)*
+ (nscsibus+1));
+
+ sp=(struct uc_scsi*)realloc(sp, (sizeof(struct uc_scsi)*(total+1)));
+ spc=sp+total;
+ s_l=(struct scsi_link*)kv_to_u(kp, (u_int)sbd->adapter_link,
+ sizeof(struct scsi_link));
+ get_sl_info(kp, spc, s_l);
+ free(s_l);
+
+ sbpc=sbp+nscsibus;
+ sbpc->bus_no=nscsibus;
+ nscsibus++;
+ sscanf(spc->device, "%[a-z]%d", name, &sbpc->unit);
+ asprintf(&sbpc->driver, "%s", name);
+
+ total++;
+ t=kv_dref_p(kp, (u_int)sbd->sc_link);
+ t=(u_int)sbd->sc_link;
+ for(j=0;j<8;j++) {
+ slp=(u_int *)kv_to_u(kp, t+(j*8*sizeof(u_int)), /* XXX */
+ (sizeof(u_int)*sbd->maxlun));
+ for(k=0;k<sbd->maxlun && slp[k]; k++){
+ struct scsi_link *slt;
+ sp=(struct uc_scsi*)realloc(sp,
+ (sizeof(struct uc_scsi)*(total+1)));
+ spc=sp+total;
+ slt=(struct scsi_link*)kv_to_u(kp, slp[k],
+ sizeof(struct scsi_link));
+ get_sl_info(kp, spc, slt);
+ free(slt);
+ spc->config=(struct scsi_device_config *)0;
+ total++;
+ }
+ free(slp);
+ }
+ free(sbd);
+ }
+ }
+ /* now stuff in the list of drivers configured in the system */
+ t=kv_dref_p(kp, kp->nl[SCSI_LIST].n_value);
+ while(t) {
+ sdev=(struct scsi_device*)kv_to_u(kp, t, sizeof(struct scsi_device));
+ sp=(struct uc_scsi*)realloc(sp, (sizeof(struct uc_scsi)*(total+1)));
+ spc=sp+total;
+ total++;
+ temp=(char *)kv_to_u(kp, (u_int)sdev->name, 10);
+ asprintf(&spc->device, "%s*", temp);
+ free(temp);
+ asprintf(&spc->adapter, "any");
+
+ spc->target=SCCONF_ANY;
+ spc->lun=SCCONF_ANY;
+
+ temp=(char *)kv_to_u(kp, (u_int)sdev->desc, 20);
+ asprintf(&spc->desc, "%s", temp);
+ free(temp);
+
+ spc->config=(struct scsi_device_config *)0;
+
+ t=(u_int)sdev->next;
+ free(sdev);
+ }
+ /* slap on the terminators */
+ sp=(struct uc_scsi*)realloc(sp, (sizeof(struct uc_scsi)*(total+1)));
+ spc=sp+total;
+ bzero(spc, sizeof(struct uc_scsi));
+
+ sbp=(struct uc_scsibus *)realloc(sbp, sizeof(struct uc_scsibus)*
+ (nscsibus+1));
+ sbpc=sbp+nscsibus;
+ bzero(sbpc, sizeof(struct uc_scsibus));
+
+ kp->scsi_devp=sp;
+ kp->scsibus_devp=sbp;
+ } else { /* no symbol, and incore, no scsi */
+ kp->scsi_devp=(struct uc_scsi *)0;
+ kp->scsibus_devp=(struct uc_scsibus *)0;
+ }
+ } else { /* on disk */
+
+ if (kp->nl[SCSI_CINIT].n_value || kp->nl[SCSI_DINIT].n_value ||
+ kp->nl[SCSI_TINIT].n_value) {
+ int total=0;
+ struct uc_scsi *sp, *spc;
+ struct scsi_ctlr_config *sctl_c;
+ struct scsi_device_config *sdev_c;
+ struct scsi_device *sdev;
+
+ struct uc_scsibus *uc_scbus, *uc_scbusc;
+
+ u_int t, ctrl_total;
+ char *temp;
+ u_int initp;
+
+ spc=sp=(struct uc_scsi*)malloc(sizeof(struct uc_scsi));
+ total=0;
+ ctrl_total=0;
+ uc_scbus = NULL; /* Just prevent unused warning */
+
+ /* static kernel, we'll first get the wired controllers/devices */
+ if((t=kp->nl[SCSI_CINIT].n_value)){
+ /* get controller info*/
+ sctl_c=(struct scsi_ctlr_config*)kv_to_u(kp, t, sizeof(struct scsi_ctlr_config));
+ uc_scbus=(struct uc_scsibus*)malloc(sizeof(struct uc_scsibus));
+
+ while(sctl_c->driver){
+
+ /* remember the bus info, for later */
+ uc_scbus=(struct uc_scsibus*)realloc(uc_scbus, sizeof(struct uc_scsibus)*(ctrl_total+1));
+ uc_scbusc=uc_scbus+ctrl_total;
+ uc_scbusc->bus_no=sctl_c->scbus;
+ temp=(char *)kv_to_u(kp, (u_int)sctl_c->driver, 20);
+ uc_scbusc->driver=temp;
+ uc_scbusc->unit=sctl_c->unit;
+ uc_scbusc->config=sctl_c;
+
+ sp=(struct uc_scsi*)realloc(sp,sizeof(struct uc_scsi)*(total+1));
+ spc=sp+total;
+ asprintf(&spc->device, "%s%d", temp, sctl_c->unit);
+ asprintf(&spc->adapter, "%s%d", temp, sctl_c->unit);
+ spc->target=0;
+ spc->lun=0;
+ spc->modified=0;
+ asprintf(&spc->desc, "%s", temp);
+ total++;
+ ctrl_total++;
+ sctl_c++;
+ }
+ }
+
+ if((t=kp->nl[SCSI_DINIT].n_value)){
+ /* get wired device info */
+ sdev_c=(struct scsi_device_config*)kv_to_u(kp, t, sizeof(struct scsi_device_config));
+ while(sdev_c->name){
+ sp=(struct uc_scsi*)realloc(sp, sizeof(struct uc_scsi)*(total+1));
+ spc=sp+total;
+ temp=(char*)kv_to_u(kp, (u_int)sdev_c->name, 10);
+ asprintf(&spc->device, "%s%d", temp, sdev_c->unit);
+ /* figure out controller */
+ if(sdev_c->cunit == SCCONF_ANY){
+ asprintf(&spc->adapter, "any");
+ } else {
+ if(ctrl_total){
+ for(i=0;i<ctrl_total;i++){
+ if(sdev_c->cunit==uc_scbus[i].bus_no){
+ asprintf(&spc->adapter, "%s%d",
+ uc_scbus[i].driver, uc_scbus[i].unit);
+ break;
+ }
+ }
+ if(i==ctrl_total) { /* made it through the whole list */
+ asprintf(&spc->adapter, "any?");
+ }
+ } else {
+ asprintf(&spc->adapter, "any?");
+ }
+ }
+ spc->target= sdev_c->target;
+ spc->lun= sdev_c->lun;
+ spc->desc=(char *)0; /* filled in later */
+ spc->config=sdev_c;
+ spc->modified=0;
+ sdev_c++;
+ total++;
+ }
+ }
+ kp->scsibus_devp=uc_scbus;
+
+ if((t=kp->nl[SCSI_TINIT].n_value)) {
+ /* WARNING: This is teetering on the brink of stupid.
+
+ this ugly little hack only works because the
+ <scsi driver>init routines are macro-generated,
+ so the offset of the device pointers will be
+ the same (hopefully).
+ */
+
+ while((initp=kv_dref_p(kp,t))) {
+ u_int tadr;
+ u_int sl;
+
+ t+=4;
+ tadr=kv_dref_t(kp, initp+4); /* offset in *.text* */
+ sdev=(struct scsi_device*)kv_to_u(kp, tadr, sizeof(struct scsi_device));
+ sp=(struct uc_scsi*)realloc(sp, (sizeof(struct uc_scsi)*(total+1)));
+ spc=sp+total;
+ total++;
+ temp=(char *)kv_to_u(kp, (u_int)sdev->name, 10);
+ asprintf(&spc->device, "%s*", temp);
+
+ asprintf(&spc->adapter, "any");
+
+ spc->target=SCCONF_ANY;
+ spc->lun=SCCONF_ANY;
+ spc->modified=0;
+ temp=(char *)kv_to_u(kp, (u_int)sdev->desc, 20);
+ asprintf(&spc->desc, "%s", temp);
+ /* now try to fill in any device descriptions from above */
+ sl=strlen(spc->device)-1;
+ for(i=0;i<(total-1);i++){ /* don't look at this device */
+ struct uc_scsi *usp;
+
+ usp=sp+i;
+ if(strncmp(usp->device, spc->device, sl)==0 && usp->desc==0) {
+ asprintf(&usp->desc, "%s", spc->desc);
+ }
+ }
+ }
+ if(total){
+ sp=(struct uc_scsi*)realloc(sp, (sizeof(struct uc_scsi)*(total+1)));
+ spc=sp+total;
+ bzero(spc, sizeof(struct uc_scsi));
+ kp->scsi_devp=sp;
+ } else {
+ free(sp);
+ kp->scsi_devp=(struct uc_scsi *)0;
+ }
+ }
+ } else {
+ kp->scsi_devp=(struct uc_scsi *)0;
+ }
+ }
+}
+
+struct list *
+get_scsi_devlist(struct kernel *kp){
+ struct list *dl;
+ struct uc_scsi *kdp;
+
+ dl=list_new();
+
+ for(kdp=kp->scsi_devp; kdp->device; kdp++){
+ list_append(dl, kdp->device);
+ }
+
+ return(dl);
+}
+
+struct list *
+get_scsi_device(struct uc_scsi *sp){
+ struct list *list;
+ char *tmp;
+
+ list=list_new();
+
+ list_append(list, sp->device);
+ list_append(list, sp->adapter);
+
+ asprintf(&tmp, "%d", sp->target );
+ list_append(list, tmp);
+ free(tmp);
+
+ asprintf(&tmp, "%d", sp->lun );
+ list_append(list, tmp);
+ free(tmp);
+
+ list_append(list, sp->desc);
+
+ return(list);
+}
+
+/* given a scsi_link and a uc_scsi pointer, fill it in */
+static void
+get_sl_info(struct kernel *kp, struct uc_scsi *spc, struct scsi_link *sl){
+
+ struct scsi_adapter *sadp;
+ struct scsi_device *sdev;
+ char *temp;
+
+ sadp=(struct scsi_adapter*)kv_to_u(kp, (u_int)sl->adapter,
+ sizeof(struct scsi_adapter));
+
+ sdev=(struct scsi_device*)kv_to_u(kp, (u_int)sl->device,
+ sizeof(struct scsi_device));
+
+ temp=(char *)kv_to_u(kp, (u_int)sdev->name, 20);
+ asprintf(&spc->device, "%s%d", temp, sl->dev_unit);
+ free(temp);
+ temp=(char *)kv_to_u(kp, (u_int)sadp->name, 20);
+ asprintf(&spc->adapter, "%s%d", temp, sl->adapter_unit);
+ free(temp);
+ spc->target = sl->target;
+ spc->lun = sl->lun;
+
+ temp=(char *)kv_to_u(kp, (u_int)sdev->desc, 30);
+ asprintf(&spc->desc, "%s", temp);
+ free(temp);
+
+}
+
+int
+scsi_setdev(struct kernel *kp, struct list *list){
+ int r=1, bus_valid=0;
+ struct uc_scsi *sp;
+ struct uc_scsibus *sbp;
+ char *t;
+
+ if(kp->scsi_devp)
+ for(sp=kp->scsi_devp;sp->device;sp++){
+ if(strcmp(list->av[0], sp->device)==0){
+ for(sbp=kp->scsibus_devp;sbp->driver; sbp++){
+ asprintf(&t, "%s%d", sbp->driver, sbp->unit);
+ if(strcmp(list->av[1], t)==0) {
+ bus_valid=1;
+ }
+ free(t);
+ }
+ if(bus_valid){
+ sp->modified=1;
+ free(sp->adapter);
+ asprintf(&sp->adapter, "%s", list->av[1]);
+ sp->target = strtol(list->av[2], (char **)NULL, 0);
+ sp->lun = strtol(list->av[3], (char **)NULL, 0);
+ r=0;
+ goto done;
+ } else {
+ r=2;
+ }
+ }
+ }
+done:
+ return(r);
+}
+
+void
+scsi_free(struct kernel *kp, int writeback){
+ struct uc_scsi *sp;
+ struct uc_scsibus *sbp;
+ char *t;
+ int scbus, i;
+
+ for(sp=kp->scsi_devp; sp->device; sp++){
+ if((!kp->incore) && sp->modified && writeback) {
+ /* save info */
+
+ /* I'm not sure this is necessary */
+#if 0
+ sscanf(sp->device, "%[a-z]%d", name, &unit);
+ sp->config->unit= unit;
+#endif
+
+ /* figger out the controller, which may have changed */
+ scbus=-1;
+ for(sbp=kp->scsibus_devp, i=0;sbp->driver; sbp++,i++){
+ asprintf(&t, "%s%d", sbp->driver, sbp->unit);
+ if(strcmp(sp->adapter, t)==0) {
+ scbus=i;
+ }
+ free(t);
+ }
+
+ /* if we fell through, don't change anything */
+ if(scbus!=-1){
+ sp->config->cunit= scbus;
+ }
+
+ sp->config->target= sp->target;
+ sp->config->lun= sp->lun;
+ /* sp->config->flags= ; XXX this should be here*/
+
+ }
+ free(sp->device);
+ free(sp->adapter);
+ free(sp->desc);
+ }
+ free(kp->scsi_devp);
+ kp->scsi_devp=(struct uc_scsi *)0;
+ /* now free the bus info */
+ if(kp->incore){
+ for(sbp=kp->scsibus_devp;sbp->driver; sbp++){
+/* fprintf(stderr, "sbp: 0x%x free(0x%x)\n", sbp, sbp->driver);*/
+ free(sbp->driver);
+ }
+ }
+
+ if (kp->scsibus_devp)
+ free(kp->scsibus_devp);
+ kp->scsibus_devp=(struct uc_scsibus *)0;
+}
+
+/* end of userconfig/uc_scsi.c */
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-25 08:03:57 +0000