Date: Thu, 14 Nov 2019 04:34:59 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r354702 - in head/sys/dev/ntb: . ntb_hw Message-ID: <201911140434.xAE4YxNh031979@repo.freebsd.org>
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Author: mav Date: Thu Nov 14 04:34:58 2019 New Revision: 354702 URL: https://svnweb.freebsd.org/changeset/base/354702 Log: Make ntb(4) send bus_get_dma_tag() requests to parent buses passing real bus' child pointers instead of grandchilds. DMAR does not like requests from devices not parented directly by PCI. MFC after: 2 weeks Modified: head/sys/dev/ntb/ntb.c head/sys/dev/ntb/ntb.h head/sys/dev/ntb/ntb_hw/ntb_hw_amd.c head/sys/dev/ntb/ntb_hw/ntb_hw_intel.c head/sys/dev/ntb/ntb_hw/ntb_hw_plx.c Modified: head/sys/dev/ntb/ntb.c ============================================================================== --- head/sys/dev/ntb/ntb.c Thu Nov 14 04:34:17 2019 (r354701) +++ head/sys/dev/ntb/ntb.c Thu Nov 14 04:34:58 2019 (r354702) @@ -205,6 +205,13 @@ ntb_print_child(device_t dev, device_t child) return (retval); } +bus_dma_tag_t +ntb_get_dma_tag(device_t bus, device_t child) +{ + + return (bus_get_dma_tag(bus)); +} + void ntb_link_event(device_t dev) { Modified: head/sys/dev/ntb/ntb.h ============================================================================== --- head/sys/dev/ntb/ntb.h Thu Nov 14 04:34:17 2019 (r354701) +++ head/sys/dev/ntb/ntb.h Thu Nov 14 04:34:58 2019 (r354702) @@ -39,6 +39,7 @@ int ntb_unregister_device(device_t ntb); int ntb_child_location_str(device_t dev, device_t child, char *buf, size_t buflen); int ntb_print_child(device_t dev, device_t child); +bus_dma_tag_t ntb_get_dma_tag(device_t bus, device_t child); /* * ntb_link_event() - notify driver context of a change in link status Modified: head/sys/dev/ntb/ntb_hw/ntb_hw_amd.c ============================================================================== --- head/sys/dev/ntb/ntb_hw/ntb_hw_amd.c Thu Nov 14 04:34:17 2019 (r354701) +++ head/sys/dev/ntb/ntb_hw/ntb_hw_amd.c Thu Nov 14 04:34:58 2019 (r354702) @@ -1266,6 +1266,7 @@ static device_method_t ntb_amd_methods[] = { /* Bus interface */ DEVMETHOD(bus_child_location_str, ntb_child_location_str), DEVMETHOD(bus_print_child, ntb_print_child), + DEVMETHOD(bus_get_dma_tag, ntb_get_dma_tag), /* NTB interface */ DEVMETHOD(ntb_port_number, amd_ntb_port_number), Modified: head/sys/dev/ntb/ntb_hw/ntb_hw_intel.c ============================================================================== --- head/sys/dev/ntb/ntb_hw/ntb_hw_intel.c Thu Nov 14 04:34:17 2019 (r354701) +++ head/sys/dev/ntb/ntb_hw/ntb_hw_intel.c Thu Nov 14 04:34:58 2019 (r354702) @@ -3124,6 +3124,7 @@ static device_method_t ntb_intel_methods[] = { /* Bus interface */ DEVMETHOD(bus_child_location_str, ntb_child_location_str), DEVMETHOD(bus_print_child, ntb_print_child), + DEVMETHOD(bus_get_dma_tag, ntb_get_dma_tag), /* NTB interface */ DEVMETHOD(ntb_port_number, intel_ntb_port_number), DEVMETHOD(ntb_peer_port_count, intel_ntb_peer_port_count), Modified: head/sys/dev/ntb/ntb_hw/ntb_hw_plx.c ============================================================================== --- head/sys/dev/ntb/ntb_hw/ntb_hw_plx.c Thu Nov 14 04:34:17 2019 (r354701) +++ head/sys/dev/ntb/ntb_hw/ntb_hw_plx.c Thu Nov 14 04:34:58 2019 (r354702) @@ -1046,6 +1046,7 @@ static device_method_t ntb_plx_methods[] = { /* Bus interface */ DEVMETHOD(bus_child_location_str, ntb_child_location_str), DEVMETHOD(bus_print_child, ntb_print_child), + DEVMETHOD(bus_get_dma_tag, ntb_get_dma_tag), /* NTB interface */ DEVMETHOD(ntb_port_number, ntb_plx_port_number), DEVMETHOD(ntb_peer_port_count, ntb_plx_peer_port_count),
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