From a378e59420eec8634aead92dc8c3fc0400b34fa3 Mon Sep 17 00:00:00 2001
From: Andrew Gallatin <gallatin@FreeBSD.org>
Date: Tue, 1 May 2018 15:33:21 +0000
Subject: [PATCH] Optionally panic when cxgbe encounters a fatal error
Sometimes it is better to panic than to leave a machine
unreachable.
Reviewed by: np
Sponsored by: Netflix
---
sys/dev/cxgbe/t4_main.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c
index e9724d0dc0ce..aca9b74edcad 100644
--- a/sys/dev/cxgbe/t4_main.c
+++ b/sys/dev/cxgbe/t4_main.c
@@ -469,6 +469,8 @@ TUNABLE_INT("hw.cxgbe.num_vis", &t4_num_vis);
static int pcie_relaxed_ordering = -1;
TUNABLE_INT("hw.cxgbe.pcie_relaxed_ordering", &pcie_relaxed_ordering);
+static int t4_panic_on_fatal_err = 0;
+TUNABLE_INT("hw.cxgbe.panic_on_fatal_err", &t4_panic_on_fatal_err);
#ifdef TCP_OFFLOAD
/*
@@ -2222,6 +2224,8 @@ t4_fatal_err(struct adapter *sc)
t4_intr_disable(sc);
log(LOG_EMERG, "%s: encountered fatal error, adapter stopped.\n",
device_get_nameunit(sc->dev));
+ if (t4_panic_on_fatal_err)
+ panic("panic requested on fatal error");
}
void