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(parent: ed74ab2) | patch
if_ntb: Add Xeon link watchdog register writes
authorConrad Meyer <cem@FreeBSD.org>
Thu, 19 Nov 2015 19:53:09 +0000 (19:53 +0000)
committerConrad Meyer <cem@FreeBSD.org>
Thu, 19 Nov 2015 19:53:09 +0000 (19:53 +0000)
commitf51a1fe048a60cb08616d88af3dcc11588ec8010
treeae2a553e88988659d941454d0cebbca235f3a8d7tree | snapshot
parented74ab27a78c79aefdfec27bb69702c8cc1f8111commit | diff
if_ntb: Add Xeon link watchdog register writes

This feature is disabled by default.  To enable it, tune
hw.if_ntb.enable_xeon_watchdog to non-zero.

If enabled, writes an unused NTB register every second to demonstrate to
a hardware watchdog that the NTB device is still alive.  Most machines
with NTB will not need this -- you know who you are.

Sponsored by: EMC / Isilon Storage Division
sys/dev/ntb/if_ntb/if_ntb.c diff | blob | history
sys/dev/ntb/ntb_hw/ntb_hw.h diff | blob | history
sys/dev/ntb/ntb_hw/ntb_regs.h diff | blob | history
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