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 <gakula@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 8f37477..9ef4e94 100644 (file)
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/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)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h
index 576b037..21f1ed4 100644 (file)
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h
+++ b/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)