[PATCH v1 net-next 07/14] octeontx2-af: Enable inner IPv4 checksum and its error code

[Jerin Jacob]

From: Jerin Jacob <jer...@marvell.com>

This patch enables the inner IPv4 checksum and
defines the error code for Rx inner and outer checksum errors.
Setting ERRCODE as 1 so that CQE descriptor can be embedded
valid checksum error code and the driver can interpret
checksum error as ERRLEV = LID + 1 and ERRCODE = 1.

Signed-off-by: Jerin Jacob <jer...@marvell.com>
---
 drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c 
b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
index ee2600d93d54..c203d3fddde9 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
@@ -1008,13 +1008,20 @@ int rvu_npc_init(struct rvu *rvu)
        rvu_write64(rvu, blkaddr, NPC_AF_PCK_DEF_OIP4,
                    (NPC_LID_LC << 8) | (NPC_LT_LC_IP << 4) | 0x0F);
 
+       /* Config Inner IPV4 NPC layer info */
+       rvu_write64(rvu, blkaddr, NPC_AF_PCK_DEF_IIP4,
+                   (NPC_LID_LF << 8) | (NPC_LT_LF_TU_IP << 4) | 0x0F);
+
        /* Enable below for Rx pkts.
         * - Outer IPv4 header checksum validation.
         * - Detect outer L2 broadcast address and set NPC_RESULT_S[L2M].
+        * - Inner IPv4 header checksum validation.
+        * - Set non zero checksum error code value
         */
        rvu_write64(rvu, blkaddr, NPC_AF_PCK_CFG,
                    rvu_read64(rvu, blkaddr, NPC_AF_PCK_CFG) |
-                   BIT_ULL(6) | BIT_ULL(2));
+                   BIT_ULL(32) | BIT_ULL(24) | BIT_ULL(6) |
+                   BIT_ULL(2) | BIT_ULL(1));
 
        /* Set RX and TX side MCAM search key size.
         * LA..LD (ltype only) + Channel
-- 
2.19.2