svn commit: r346859 - stable/11/sys/dev/cxgbe

[Navdeep Parhar]

Author: np
Date: Mon Apr 29 00:08:30 2019
New Revision: 346859
URL: https://svnweb.freebsd.org/changeset/base/346859

Log:
  MFC r333141 (by gallatin@):
  
  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

Modified:
  stable/11/sys/dev/cxgbe/t4_main.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/dev/cxgbe/t4_main.c
==============================================================================
--- stable/11/sys/dev/cxgbe/t4_main.c	Sun Apr 28 23:46:01 2019	(r346858)
+++ stable/11/sys/dev/cxgbe/t4_main.c	Mon Apr 29 00:08:30 2019	(r346859)
@@ -544,6 +544,8 @@ SYSCTL_INT(_hw_cxgbe, OID_AUTO, pcie_relaxed_ordering,
     &pcie_relaxed_ordering, 0,
     "PCIe Relaxed Ordering: 0 = disable, 1 = enable, 2 = leave alone");
 
+static int t4_panic_on_fatal_err = 0;
+TUNABLE_INT("hw.cxgbe.panic_on_fatal_err", &t4_panic_on_fatal_err);
 
 #ifdef TCP_OFFLOAD
 /*
@@ -2509,6 +2511,8 @@ 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