diff --git a/sys/dev/vmware/vmxnet3/if_vmx.c b/sys/dev/vmware/vmxnet3/if_vmx.c
--- a/sys/dev/vmware/vmxnet3/if_vmx.c
+++ b/sys/dev/vmware/vmxnet3/if_vmx.c
@@ -1429,7 +1429,7 @@
 			return (1);
 		vmxnet3_barrier(sc, VMXNET3_BARRIER_RD);
 
-		if (++txc->vxcr_next == txc->vxcr_ndesc) {
+		if (++txc->vxcr_next >= txc->vxcr_ndesc) {
 			txc->vxcr_next = 0;
 			txc->vxcr_gen ^= 1;
 		}
@@ -1480,7 +1480,7 @@
 			avail++;
 		if (avail > budget)
 			break;
-		if (++idx == rxc->vxcr_ndesc) {
+		if (++idx >= rxc->vxcr_ndesc) {
 			idx = 0;
 			completed_gen ^= 1;
 		}
@@ -1526,7 +1526,7 @@
 		    ("%s: zero-length packet without both sop and eop set",
 			__func__));
 		rxc->vxcr_zero_length++;
-		if (++cqidx == rxc->vxcr_ndesc) {
+		if (++cqidx >= rxc->vxcr_ndesc) {
 			cqidx = 0;
 			rxc->vxcr_gen ^= 1;
 		}
@@ -1609,7 +1609,7 @@
 		} else {
 			rxc->vcxr_zero_length_frag++;
 		}
-		if (++cqidx == rxc->vxcr_ndesc) {
+		if (++cqidx >= rxc->vxcr_ndesc) {
 			cqidx = 0;
 			rxc->vxcr_gen ^= 1;
 		}
@@ -1712,7 +1712,7 @@
 			rxr->vxrxr_desc_skips++;
 		rxd[idx].gen = rxr->vxrxr_gen;
 
-		if (++idx == rxr->vxrxr_ndesc) {
+		if (++idx >= rxr->vxrxr_ndesc) {
 			idx = 0;
 			rxr->vxrxr_gen ^= 1;
 		}