diff options
author | peter <peter@FreeBSD.org> | 2000-01-23 18:03:38 +0000 |
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committer | peter <peter@FreeBSD.org> | 2000-01-23 18:03:38 +0000 |
commit | e238f1c84fa7618f0178cf7e6086a749f6b8d938 (patch) | |
tree | b60b9b7fbee8d653f24e3d78f2eae41ed8aa43bb /sys/cam/cam_periph.c | |
parent | 11731c7644c05c4ad69c1936e780f3d918b35ca0 (diff) | |
download | FreeBSD-src-e238f1c84fa7618f0178cf7e6086a749f6b8d938.zip FreeBSD-src-e238f1c84fa7618f0178cf7e6086a749f6b8d938.tar.gz |
A minimal update to the device wiring code so that it looks at the
dynamic resource tables rather than relying on a duplicated cam-specific
table generated by config(8) in ioconf.c. This was a major holdup to
getting loader / userconfig driven configuration of scsi wiring.
Diffstat (limited to 'sys/cam/cam_periph.c')
-rw-r--r-- | sys/cam/cam_periph.c | 106 |
1 files changed, 51 insertions, 55 deletions
diff --git a/sys/cam/cam_periph.c b/sys/cam/cam_periph.c index c787c54..5bbd81c 100644 --- a/sys/cam/cam_periph.c +++ b/sys/cam/cam_periph.c @@ -37,11 +37,11 @@ #include <sys/buf.h> #include <sys/proc.h> #include <sys/devicestat.h> +#include <sys/bus.h> #include <vm/vm.h> #include <vm/vm_extern.h> #include <cam/cam.h> -#include <cam/cam_conf.h> #include <cam/cam_ccb.h> #include <cam/cam_xpt_periph.h> #include <cam/cam_periph.h> @@ -264,9 +264,10 @@ static u_int camperiphnextunit(struct periph_driver *p_drv, u_int newunit, int wired) { struct cam_periph *periph; - struct cam_periph_config *periph_conf; - char *periph_name; + char *periph_name, *strval; int s; + int i, val, dunit; + const char *dname; s = splsoftcam(); periph_name = p_drv->driver_name; @@ -287,25 +288,27 @@ camperiphnextunit(struct periph_driver *p_drv, u_int newunit, int wired) } continue; } + if (wired) + break; - for (periph_conf = cam_pinit; - wired == 0 && periph_conf->periph_name != NULL; - periph_conf++) { - - /* - * Don't match entries like "da 4" as a wired down - * device, but do match entries like "da 4 target 5" - * or even "da 4 scbus 1". - */ - if (IS_SPECIFIED(periph_conf->periph_unit) - && (!strcmp(periph_name, periph_conf->periph_name)) - && (IS_SPECIFIED(periph_conf->target) - || IS_SPECIFIED(periph_conf->pathid)) - && (newunit == periph_conf->periph_unit)) + /* + * Don't match entries like "da 4" as a wired down + * device, but do match entries like "da 4 target 5" + * or even "da 4 scbus 1". + */ + i = -1; + while ((i = resource_locate(i, periph_name)) != -1) { + dname = resource_query_name(i); + dunit = resource_query_unit(i); + /* if no "target" and no specific scbus, skip */ + if (resource_int_value(dname, dunit, "target", &val) && + (resource_string_value(dname, dunit, "at",&strval)|| + strcmp(strval, "scbus") == 0)) + continue; + if (newunit == dunit) break; } - - if (wired != 0 || periph_conf->periph_name == NULL) + if (i == -1) break; } splx(s); @@ -316,51 +319,44 @@ static u_int camperiphunit(struct periph_driver *p_drv, path_id_t pathid, target_id_t target, lun_id_t lun) { - struct cam_periph_config *periph_conf; - u_int unit; - int hit; + u_int unit; + int hit, i, val, dunit; + const char *dname; + char pathbuf[32], *strval, *periph_name; unit = 0; hit = 0; - for (periph_conf = cam_pinit; - periph_conf->periph_name != NULL; - periph_conf++, hit = 0) { - - if (!strcmp(p_drv->driver_name, periph_conf->periph_name) - && IS_SPECIFIED(periph_conf->periph_unit)) { - - if (IS_SPECIFIED(periph_conf->pathid)) { - - if (pathid != periph_conf->pathid) - continue; - hit++; - } - - if (IS_SPECIFIED(periph_conf->target)) { - - if (target != periph_conf->target) - continue; - hit++; - } - - if (IS_SPECIFIED(periph_conf->lun)) { - - if (lun != periph_conf->lun) - continue; - hit++; - } - - if (hit != 0) { - unit = periph_conf->periph_unit; - break; - } + periph_name = p_drv->driver_name; + snprintf(pathbuf, sizeof(pathbuf), "scbus%d", pathid); + i = -1; + while ((i = resource_locate(i, periph_name)) != -1) { + dname = resource_query_name(i); + dunit = resource_query_unit(i); + if (resource_string_value(dname, dunit, "at", &strval) == 0) { + if (strcmp(strval, pathbuf) != 0) + continue; + hit++; + } + if (resource_int_value(dname, dunit, "target", &val) == 0) { + if (val != target) + continue; + hit++; + } + if (resource_int_value(dname, dunit, "lun", &val) == 0) { + if (val != lun) + continue; + hit++; + } + if (hit != 0) { + unit = dunit; + break; } } /* * Either start from 0 looking for the next unit or from - * the unit number given in the periph_conf. This way, + * the unit number given in the resource config. This way, * if we have wildcard matches, we don't return the same * unit number twice. */ |