Author: mav
Date: Tue Nov 19 02:09:04 2019
New Revision: 354841
URL: https://svnweb.freebsd.org/changeset/base/354841
Log:
Add ioat_get_domain() to ioat(4) KPI.
This allows NUMA-aware consumers to reduce inter-domain traffic.
MFC after: 1 week
Sponsored by: iXsystems, Inc.
Modified:
head/sys/dev/ioat/ioat.c
head/sys/dev/ioat/ioat.h
Modified: head/sys/dev/ioat/ioat.c
==============================================================================
--- head/sys/dev/ioat/ioat.c Tue Nov 19 02:03:10 2019 (r354840)
+++ head/sys/dev/ioat/ioat.c Tue Nov 19 02:09:04 2019 (r354841)
@@ -1025,6 +1025,15 @@ ioat_get_capabilities(bus_dmaengine_t dmaengine)
}
int
+ioat_get_domain(bus_dmaengine_t dmaengine, int *domain)
+{
+ struct ioat_softc *ioat;
+
+ ioat = to_ioat_softc(dmaengine);
+ return (bus_get_domain(ioat->device, domain));
+}
+
+int
ioat_set_interrupt_coalesce(bus_dmaengine_t dmaengine, uint16_t delay)
{
struct ioat_softc *ioat;
Modified: head/sys/dev/ioat/ioat.h
==============================================================================
--- head/sys/dev/ioat/ioat.h Tue Nov 19 02:03:10 2019 (r354840)
+++ head/sys/dev/ioat/ioat.h Tue Nov 19 02:09:04 2019 (r354841)
@@ -131,6 +131,7 @@ void ioat_put_dmaengine(bus_dmaengine_t dmaengine);
int ioat_get_hwversion(bus_dmaengine_t dmaengine);
size_t ioat_get_max_io_size(bus_dmaengine_t dmaengine);
uint32_t ioat_get_capabilities(bus_dmaengine_t dmaengine);
+int ioat_get_domain(bus_dmaengine_t dmaengine, int *domain);
/*
* Set interrupt coalescing on a DMA channel.
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