net: mvpp2: add an entry to skip parser

This entry used when skipping the parser needed,
for example, the custom header pretended to ethernet header.

Suggested-by: Liron Himi <liron@marvell.com>
Signed-off-by: Stefan Chulski <stefanc@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c

@@ -1172,6 +1172,21 @@ static void mvpp2_prs_mh_init(struct mvpp2 *priv)
 	/* Update shadow table and hw entry */
 	mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MH);
 	mvpp2_prs_hw_write(priv, &pe);
+
+	/* Set MH entry that skip parser */
+	pe.index = MVPP2_PE_MH_SKIP_PRS;
+	mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MH);
+	mvpp2_prs_sram_shift_set(&pe, MVPP2_MH_SIZE,
+				 MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+	mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+	mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+
+	/* Mask all ports */
+	mvpp2_prs_tcam_port_map_set(&pe, 0);
+
+	/* Update shadow table and hw entry */
+	mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MH);
+	mvpp2_prs_hw_write(priv, &pe);
 }
 
 /* Set default entires (place holder) for promiscuous, non-promiscuous and

drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.h

@@ -103,10 +103,11 @@
 #define MVPP2_PE_MAC_RANGE_START	(MVPP2_PE_MAC_RANGE_END - \
 						MVPP2_PRS_MAC_RANGE_SIZE + 1)
 /* VLAN filtering range */
-#define MVPP2_PE_VID_FILT_RANGE_END     (MVPP2_PRS_TCAM_SRAM_SIZE - 31)
+#define MVPP2_PE_VID_FILT_RANGE_END     (MVPP2_PRS_TCAM_SRAM_SIZE - 32)
 #define MVPP2_PE_VID_FILT_RANGE_START   (MVPP2_PE_VID_FILT_RANGE_END - \
 					 MVPP2_PRS_VLAN_FILT_RANGE_SIZE + 1)
 #define MVPP2_PE_LAST_FREE_TID          (MVPP2_PE_MAC_RANGE_START - 1)
+#define MVPP2_PE_MH_SKIP_PRS		(MVPP2_PRS_TCAM_SRAM_SIZE - 31)
 #define MVPP2_PE_IP6_EXT_PROTO_UN	(MVPP2_PRS_TCAM_SRAM_SIZE - 30)
 #define MVPP2_PE_IP6_ADDR_UN		(MVPP2_PRS_TCAM_SRAM_SIZE - 29)
 #define MVPP2_PE_IP4_ADDR_UN		(MVPP2_PRS_TCAM_SRAM_SIZE - 28)