Author: cem
Date: Tue Jul 12 21:56:52 2016
New Revision: 302681
URL: https://svnweb.freebsd.org/changeset/base/302681
Log:
ioat(4): Remove force_hw_error sysctl; it does not work reliably
Modified:
head/sys/dev/ioat/ioat.c
Modified: head/sys/dev/ioat/ioat.c
==============================================================================
--- head/sys/dev/ioat/ioat.c Tue Jul 12 21:56:49 2016 (r302680)
+++ head/sys/dev/ioat/ioat.c Tue Jul 12 21:56:52 2016 (r302681)
@@ -1975,38 +1975,6 @@ out:
}
static int
-sysctl_handle_error(SYSCTL_HANDLER_ARGS)
-{
- struct ioat_descriptor *desc;
- struct ioat_softc *ioat;
- int error, arg;
-
- ioat = arg1;
-
- arg = 0;
- error = SYSCTL_OUT(req, &arg, sizeof(arg));
- if (error != 0 || req->newptr == NULL)
- return (error);
-
- error = SYSCTL_IN(req, &arg, sizeof(arg));
- if (error != 0)
- return (error);
-
- if (arg != 0) {
- ioat_acquire(&ioat->dmaengine);
- desc = ioat_op_generic(ioat, IOAT_OP_COPY, 1,
- 0xffff000000000000ull, 0xffff000000000000ull, NULL, NULL,
- 0);
- if (desc == NULL)
- error = ENOMEM;
- else
- ioat_submit_single(ioat);
- ioat_release(&ioat->dmaengine);
- }
- return (error);
-}
-
-static int
sysctl_handle_reset(SYSCTL_HANDLER_ARGS)
{
struct ioat_softc *ioat;
@@ -2107,9 +2075,6 @@ ioat_setup_sysctl(device_t device)
SYSCTL_ADD_PROC(ctx, hammer, OID_AUTO, "force_hw_reset",
CTLTYPE_INT | CTLFLAG_RW, ioat, 0, sysctl_handle_reset, "I",
"Set to non-zero to reset the hardware");
- SYSCTL_ADD_PROC(ctx, hammer, OID_AUTO, "force_hw_error",
- CTLTYPE_INT | CTLFLAG_RW, ioat, 0, sysctl_handle_error, "I",
- "Set to non-zero to inject a recoverable hardware error");
tmp = SYSCTL_ADD_NODE(ctx, par, OID_AUTO, "stats", CTLFLAG_RD, NULL,
"IOAT channel statistics");
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