svn commit: r288108 - head/sys/arm64/cavium

[Ed Maste]

Author: emaste
Date: Tue Sep 22 12:56:34 2015
New Revision: 288108
URL: https://svnweb.freebsd.org/changeset/base/288108

Log:
  arm64 ThunderX PCIe workaround: enumerate only one slot for now
  
  Otherwise an em(4) NIC is detected 32 times.
  
  Submitted by:	wma at semihalf.com
  Obtained from:	Semihalf
  Differential Revision:	https://reviews.freebsd.org/D3706

Modified:
  head/sys/arm64/cavium/thunder_pcie_pem.c

Modified: head/sys/arm64/cavium/thunder_pcie_pem.c
==============================================================================
--- head/sys/arm64/cavium/thunder_pcie_pem.c	Tue Sep 22 11:38:58 2015	(r288107)
+++ head/sys/arm64/cavium/thunder_pcie_pem.c	Tue Sep 22 12:56:34 2015	(r288108)
@@ -183,8 +183,16 @@ static int
 thunder_pem_maxslots(device_t dev)
 {
 
+#if 0
 	/* max slots per bus acc. to standard */
 	return (PCI_SLOTMAX);
+#else
+	/*
+	 * ARM64TODO Workaround - otherwise an em(4) interface appears to be
+	 * present on every PCI function on the bus to which it is connected
+	 */
+	return (0);
+#endif
 }
 
 static int