Differential D25852 Diff 75077 head/sys/dev/ntb/ntb_hw/ntb_hw_plx.c

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Show First 20 Lines • Show All 337 Lines • ▼ Show 20 Lines	if (sc->conf_res == NULL) {
device_printf(dev, "Can't allocate configuration BAR.\n");		device_printf(dev, "Can't allocate configuration BAR.\n");
return (ENXIO);		return (ENXIO);
}		}

/*		/*
* The device occupies whole bus. In translated TLP slot field		* The device occupies whole bus. In translated TLP slot field
* keeps LUT index (original bus/slot), function is passed through.		* keeps LUT index (original bus/slot), function is passed through.
*/		*/
bus_dma_dmar_set_buswide(dev);		bus_dma_iommu_set_buswide(dev);

/* Identify chip port we are connected to. */		/* Identify chip port we are connected to. */
val = bus_read_4(sc->conf_res, 0x360);		val = bus_read_4(sc->conf_res, 0x360);
sc->port = (val >> ((sc->ntx == 0) ? 8 : 16)) & 0x1f;		sc->port = (val >> ((sc->ntx == 0) ? 8 : 16)) & 0x1f;

/* Detect A-LUT enable and size. */		/* Detect A-LUT enable and size. */
val >>= 30;		val >>= 30;
sc->alut = (val == 0x3) ? 1 : ((val & (1 << sc->ntx)) ? 2 : 0);		sc->alut = (val == 0x3) ? 1 : ((val & (1 << sc->ntx)) ? 2 : 0);
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