static int
siba_erom_lookup_core(bhnd_erom_t *erom, const struct bhnd_core_match *desc,
struct bhnd_core_info *core)
{
struct siba_erom *sc;
struct bhnd_core_match imatch;
sc = (struct siba_erom *)erom;
/* We can't determine a core's unit number during the initial scan. */
imatch = *desc;
imatch.m.match.core_unit = 0;
/* Locate the first matching core */
for (u_int i = 0; i < sc->io.ncores; i++) {
struct siba_core_id sid;
struct bhnd_core_info ci;
/* Read the core info */
sid = siba_eio_read_core_id(&sc->io, i, 0);
ci = sid.core_info;
/* Check for initial match */
if (!bhnd_core_matches(&ci, &imatch))
continue;
/* Re-scan preceding cores to determine the unit number. */
for (u_int j = 0; j < i; j++) {
sid = siba_eio_read_core_id(&sc->io, i, 0);
/* Bump the unit number? */
if (sid.core_info.vendor == ci.vendor &&
sid.core_info.device == ci.device)
ci.unit++;
}
/* Check for full match against now-valid unit number */
if (!bhnd_core_matches(&ci, desc))
continue;
/* Matching core found */
*core = ci;
return (0);
}
/* Not found */
return (ENOENT);
}
/**
* Return all quirk flags for the given @p cid and @p ci.
*/
static uint32_t
bhndb_pci_get_core_quirks(struct bhnd_chipid *cid, struct bhnd_core_info *ci)
{
struct bhndb_pci_core *entry;
struct bhndb_pci_quirk *qtable;
uint32_t quirks;
quirks = 0;
/* No core entry? */
if ((entry = bhndb_pci_find_core(ci)) == NULL)
return (quirks);
/* No quirks? */
if ((qtable = entry->quirks) == NULL)
return (quirks);
for (size_t i = 0; !BHNDB_PCI_IS_QUIRK_END(&qtable[i]); i++) {
struct bhndb_pci_quirk *q = &qtable[i];
if (!bhnd_chip_matches(cid, &q->chip_desc))
continue;
if (!bhnd_core_matches(ci, &q->core_desc))
continue;
quirks |= q->quirks;
}
return (quirks);
}
/**
* Return the device table entry for @p ci, or NULL if none.
*/
static struct bhndb_pci_core *
bhndb_pci_find_core(struct bhnd_core_info *ci)
{
for (size_t i = 0; !BHNDB_PCI_IS_CORE_END(&bhndb_pci_cores[i]); i++) {
struct bhndb_pci_core *entry = &bhndb_pci_cores[i];
if (bhnd_core_matches(ci, &entry->match))
return (entry);
}
return (NULL);
}