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From: Sean Bruno <sbruno@FreeBSD.org>
Date: Sun, 19 Apr 2015 20:02:10 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-projects@freebsd.org
Subject: svn commit: r281749 - projects/em_mq/sys/dev/e1000
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Author: sbruno
Date: Sun Apr 19 20:02:09 2015
New Revision: 281749
URL: https://svnweb.freebsd.org/changeset/base/281749

Log:
  Add DDB includes for future DB_FUNC work.
  
  Add explict programming of RDTR register.
  
  Add EM_MULTIQUEUE Values for RADV, RDTR.
  - arbitrarily choose an RADV that is 2xRDTR.

Modified:
  projects/em_mq/sys/dev/e1000/if_em.c

Modified: projects/em_mq/sys/dev/e1000/if_em.c
==============================================================================
--- projects/em_mq/sys/dev/e1000/if_em.c	Sun Apr 19 18:10:39 2015	(r281748)
+++ projects/em_mq/sys/dev/e1000/if_em.c	Sun Apr 19 20:02:09 2015	(r281749)
@@ -33,6 +33,7 @@
 /*$FreeBSD$*/
 
 #include "opt_em.h"
+#include "opt_ddb.h"
 #include "opt_inet.h"
 #include "opt_inet6.h"
 
@@ -42,6 +43,10 @@
 
 #include <sys/param.h>
 #include <sys/systm.h>
+#ifdef DDB
+#include <sys/types.h>
+#include <ddb/ddb.h>
+#endif
 #if __FreeBSD_version >= 800000
 #include <sys/buf_ring.h>
 #endif
@@ -4353,6 +4358,9 @@ em_initialize_receive_unit(struct adapte
 
 	E1000_WRITE_REG(&adapter->hw, E1000_RADV,
 	    adapter->rx_abs_int_delay.value);
+
+	E1000_WRITE_REG(&adapter->hw, E1000_RDTR,
+	    adapter->rx_int_delay.value);
 	/*
 	 * Set the interrupt throttling rate. Value is calculated
 	 * as DEFAULT_ITR = 1/(MAX_INTS_PER_SEC * 256ns)