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From: Navdeep Parhar <np@FreeBSD.org>
Date: Wed, 4 May 2011 23:07:30 +0000 (UTC)
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Subject: svn commit: r221464 - head/sys/dev/cxgbe
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Author: np
Date: Wed May  4 23:07:30 2011
New Revision: 221464
URL: http://svn.freebsd.org/changeset/base/221464

Log:
  Always re-arm an iq's interrupt before leaving the handler.
  
  MFC after:	1 week

Modified:
  head/sys/dev/cxgbe/t4_sge.c

Modified: head/sys/dev/cxgbe/t4_sge.c
==============================================================================
--- head/sys/dev/cxgbe/t4_sge.c	Wed May  4 22:12:22 2011	(r221463)
+++ head/sys/dev/cxgbe/t4_sge.c	Wed May  4 23:07:30 2011	(r221464)
@@ -499,11 +499,8 @@ t4_intr_fwd(void *arg)
 		iq_next(iq);
 	}
 
-	if (ndesc_total > 0) {
-		t4_write_reg(sc, MYPF_REG(A_SGE_PF_GTS),
-		    V_CIDXINC(ndesc_pending) | V_INGRESSQID((u32)iq->cntxt_id) |
-		    V_SEINTARM(iq->intr_params));
-	}
+	t4_write_reg(sc, MYPF_REG(A_SGE_PF_GTS), V_CIDXINC(ndesc_pending) |
+	    V_INGRESSQID((u32)iq->cntxt_id) | V_SEINTARM(iq->intr_params));
 
 	atomic_cmpset_32(&iq->state, IQS_BUSY, IQS_IDLE);
 }
@@ -601,11 +598,8 @@ t4_evt_rx(void *arg)
 		iq_next(iq);
 	}
 
-	if (ndesc_total > 0) {
-		t4_write_reg(sc, MYPF_REG(A_SGE_PF_GTS),
-		    V_CIDXINC(ndesc_pending) | V_INGRESSQID(iq->cntxt_id) |
-		    V_SEINTARM(iq->intr_params));
-	}
+	t4_write_reg(sc, MYPF_REG(A_SGE_PF_GTS), V_CIDXINC(ndesc_pending) |
+	    V_INGRESSQID(iq->cntxt_id) | V_SEINTARM(iq->intr_params));
 }
 
 void