octeontx2-af: Use NDC TX for transmit packet data

For better performance set hardware to use NDC TX for reading packet
data specified NIX_SEND_SG_S.

Signed-off-by: Geetha sowjanya <[email protected]>
Signed-off-by: Sunil Goutham <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Geetha sowjanya

drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c

@@ -4200,6 +4200,9 @@ static int rvu_nix_block_init(struct rvu *rvu, struct nix_hw *nix_hw)
 	/* Restore CINT timer delay to HW reset values */
 	rvu_write64(rvu, blkaddr, NIX_AF_CINT_DELAY, 0x0ULL);
 
+	/* For better performance use NDC TX instead of NDC RX for SQ's SQEs" */
+	rvu_write64(rvu, blkaddr, NIX_AF_SEB_CFG, 0x1ULL);
+
 	if (is_block_implemented(hw, blkaddr)) {
 		err = nix_setup_txschq(rvu, nix_hw, blkaddr);
 		if (err)

drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h

@@ -263,6 +263,7 @@
 #define NIX_AF_SDP_TX_FIFO_STATUS	(0x0640)
 #define NIX_AF_TX_NPC_CAPTURE_CONFIG	(0x0660)
 #define NIX_AF_TX_NPC_CAPTURE_INFO	(0x0670)
+#define NIX_AF_SEB_CFG			(0x05F0)
 
 #define NIX_AF_DEBUG_NPC_RESP_DATAX(a)          (0x680 | (a) << 3)
 #define NIX_AF_SMQX_CFG(a)                      (0x700 | (a) << 16)