diff options
| author | Alexander Motin <mav@FreeBSD.org> | 2019-11-19 02:03:10 +0000 |
|---|---|---|
| committer | Alexander Motin <mav@FreeBSD.org> | 2019-11-19 02:03:10 +0000 |
| commit | f0dd6a1787a9a96611e3941049fe679282e95b89 (patch) | |
| tree | 1034d022aa90a39f0ce8962c5a09d0f417e790c0 /sys/dev/ntb | |
| parent | 309d2bc89045100bd2193065403add488a9853f9 (diff) | |
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.
Notes
Notes:
svn path=/head/; revision=354840
Diffstat (limited to 'sys/dev/ntb')
| -rw-r--r-- | sys/dev/ntb/ntb_hw/ntb_hw_plx.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/dev/ntb/ntb_hw/ntb_hw_plx.c b/sys/dev/ntb/ntb_hw/ntb_hw_plx.c index 5872d0d5e656..97df9ce3a4cc 100644 --- a/sys/dev/ntb/ntb_hw/ntb_hw_plx.c +++ b/sys/dev/ntb/ntb_hw/ntb_hw_plx.c @@ -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; |