1 files changed, 12 insertions, 1 deletions

diff --git a/sys/dev/netmap/ixgbe_netmap.h b/sys/dev/netmap/ixgbe_netmap.h
index b448f95907f6..4f52ed8abc90 100644
--- a/sys/dev/netmap/ixgbe_netmap.h
+++ b/sys/dev/netmap/ixgbe_netmap.h
@@ -63,6 +63,9 @@
  *	This is tricky, much better to use TDH for now.
  */
 SYSCTL_DECL(_dev_netmap);
+static int ix_write_len;
+SYSCTL_INT(_dev_netmap, OID_AUTO, ix_write_len,
+    CTLFLAG_RW, &ix_write_len, 0, "write rx len");
 static int ix_rx_miss, ix_rx_miss_bufs, ix_use_dd, ix_crcstrip;
 SYSCTL_INT(_dev_netmap, OID_AUTO, ix_crcstrip,
     CTLFLAG_RW, &ix_crcstrip, 0, "strip CRC on rx frames");
@@ -121,6 +124,9 @@ set_crcstrip(struct ixgbe_hw *hw, int onoff)
 
 	hl = IXGBE_READ_REG(hw, IXGBE_HLREG0);
 	rxc = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
+	if (netmap_verbose)
+		D("%s read  HLREG 0x%x rxc 0x%x",
+			onoff ? "enter" : "exit", hl, rxc);
 	/* hw requirements ... */
 	rxc &= ~IXGBE_RDRXCTL_RSCFRSTSIZE;
 	rxc |= IXGBE_RDRXCTL_RSCACKC;
@@ -133,6 +139,9 @@ set_crcstrip(struct ixgbe_hw *hw, int onoff)
 		hl |= IXGBE_HLREG0_RXCRCSTRP;
 		rxc |= IXGBE_RDRXCTL_CRCSTRIP;
 	}
+	if (netmap_verbose)
+		D("%s write HLREG 0x%x rxc 0x%x",
+			onoff ? "enter" : "exit", hl, rxc);
 	IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hl);
 	IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rxc);
 }
@@ -479,7 +488,7 @@ ixgbe_netmap_rxsync(struct ifnet *ifp, u_int ring_nr, int do_lock)
 		 * of CRCSTRIP. The data sheets say differently.
 		 * Very strange.
 		 */
-		int crclen = 0; // ix_crcstrip ? 0 : 4;
+		int crclen = ix_crcstrip ? 0 : 4;
 		l = rxr->next_to_check;
 		j = netmap_idx_n2k(kring, l);
 
@@ -490,6 +499,8 @@ ixgbe_netmap_rxsync(struct ifnet *ifp, u_int ring_nr, int do_lock)
 			if ((staterr & IXGBE_RXD_STAT_DD) == 0)
 				break;
 			ring->slot[j].len = le16toh(curr->wb.upper.length) - crclen;
+			if (ix_write_len)
+				D("rx[%d] len %d", j, ring->slot[j].len);
 			bus_dmamap_sync(rxr->ptag,
 			    rxr->rx_buffers[l].pmap, BUS_DMASYNC_POSTREAD);
 			j = (j == lim) ? 0 : j + 1;