static void
ntb_handle_legacy_interrupt(void *arg)
{
struct ntb_softc *ntb = arg;
unsigned int i = 0;
uint64_t pdb64;
uint16_t pdb16;
if (ntb->type == NTB_SOC) {
pdb64 = ntb_reg_read(8, ntb->reg_ofs.pdb);
while (pdb64) {
i = ffs(pdb64);
pdb64 &= pdb64 - 1;
handle_soc_irq(&ntb->db_cb[i]);
}
} else {
pdb16 = ntb_reg_read(2, ntb->reg_ofs.pdb);
if ((pdb16 & XEON_DB_HW_LINK) != 0) {
handle_xeon_event_irq(ntb);
pdb16 &= ~XEON_DB_HW_LINK;
}
while (pdb16 != 0) {
i = ffs(pdb16);
pdb16 &= pdb16 - 1;
handle_xeon_irq(&ntb->db_cb[i]);
}
}
}
static void
ntb_handle_legacy_interrupt(void *arg)
{
struct ntb_softc *ntb = arg;
unsigned int i;
uint64_t ldb;
ldb = db_ioread(ntb, ntb->reg_ofs.ldb);
if (ntb->type == NTB_XEON && (ldb & XEON_DB_HW_LINK) != 0) {
handle_xeon_event_irq(ntb);
ldb &= ~XEON_DB_HW_LINK;
}
while (ldb != 0) {
i = ffs(ldb);
ldb &= ldb - 1;
if (ntb->type == NTB_SOC)
handle_soc_irq(&ntb->db_cb[i]);
else
handle_xeon_irq(&ntb->db_cb[i]);
}
}