Author: mav Date: Tue Nov 19 02:03:10 2019 New Revision: 354840 URL: https://svnweb.freebsd.org/changeset/base/354840
Log: Call bus_dma_dmar_set_buswide(9) added in r354830. PLX NTB sends translated DMA requests not only from itsels, but from all slots and functions of its bus. By default DMAR blocks those additional. MFC after: 1 week Sponsored by: iXsystems, Inc. Modified: head/sys/dev/ntb/ntb_hw/ntb_hw_plx.c Modified: head/sys/dev/ntb/ntb_hw/ntb_hw_plx.c ============================================================================== --- head/sys/dev/ntb/ntb_hw/ntb_hw_plx.c Tue Nov 19 02:00:13 2019 (r354839) +++ head/sys/dev/ntb/ntb_hw/ntb_hw_plx.c Tue Nov 19 02:03:10 2019 (r354840) @@ -339,6 +339,12 @@ ntb_plx_attach(device_t dev) return (ENXIO); } + /* + * The device occupies whole bus. In translated TLP slot field + * keeps LUT index (original bus/slot), function is passed through. + */ + bus_dma_dmar_set_buswide(dev); + /* Identify chip port we are connected to. */ val = bus_read_4(sc->conf_res, 0x360); sc->port = (val >> ((sc->ntx == 0) ? 8 : 16)) & 0x1f; _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"