From: Sunil Goutham <sgout...@marvell.com>
Config NPC layer info from KPU profile into protocol
checker to identify outer L2/IPv4/TCP/UDP headers in a
packet. And enable IPv4 checksum validation.
L3/L4 and L4 CSUM validation will be enabled by PF/VF
drivers by configuring NIX_AF_LF(0..127)_RX_CFG via mbox
i.e 'nix_lf_alloc_req->rx_cfg'
Also enable setting of NPC_RESULT_S[L2B] when an outer
L2 broadcast address is detected. This will help in
installing NPC MCAM rules for broadcast packets.
Signed-off-by: Sunil Goutham <sgout...@marvell.com>
---
drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 14 ++++++++++++++
drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c | 14 ++++++++++++++
2 files changed, 28 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 7de5417..02e1d16 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -14,6 +14,7 @@
#include "rvu_struct.h"
#include "rvu_reg.h"
#include "rvu.h"
+#include "npc.h"
#include "cgx.h"
static int nix_update_bcast_mce_list(struct rvu *rvu, u16 pcifunc, bool add);
@@ -1630,6 +1631,19 @@ int rvu_nix_init(struct rvu *rvu)
err = nix_setup_mcast(rvu, hw->nix0, blkaddr);
if (err)
return err;
+
+ /* Config Outer L2, IP, TCP and UDP's NPC layer info.
+ * This helps HW protocol checker to identify headers
+ * and validate length and checksums.
+ */
+ rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OL2,
+ (NPC_LID_LA << 8) | (NPC_LT_LA_ETHER << 4) | 0x0F);
+ rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OUDP,
+ (NPC_LID_LD << 8) | (NPC_LT_LD_UDP << 4) | 0x0F);
+ rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OTCP,
+ (NPC_LID_LD << 8) | (NPC_LT_LD_TCP << 4) | 0x0F);
+ rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OIP4,
+ (NPC_LID_LC << 8) | (NPC_LT_LC_IP << 4) | 0x0F);
}
return 0;
}
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
index a973895..cc1d8c9 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
@@ -220,6 +220,20 @@ int rvu_npc_init(struct rvu *rvu)
/* Configure KPU profile */
npc_parser_profile_init(rvu, blkaddr);
+ /* Config Outer L2, IPv4's NPC layer info */
+ rvu_write64(rvu, blkaddr, NPC_AF_PCK_DEF_OL2,
+ (NPC_LID_LA << 8) | (NPC_LT_LA_ETHER << 4) | 0x0F);
+ rvu_write64(rvu, blkaddr, NPC_AF_PCK_DEF_OIP4,
+ (NPC_LID_LC << 8) | (NPC_LT_LC_IP << 4) | 0x0F);
+
+ /* Enable below for Rx pkts.
+ * - Outer IPv4 header checksum validation.
+ * - Detect outer L2 broadcast address and set NPC_RESULT_S[L2M].
+ */
+ rvu_write64(rvu, blkaddr, NPC_AF_PCK_CFG,
+ rvu_read64(rvu, blkaddr, NPC_AF_PCK_CFG) |
+ BIT_ULL(6) | BIT_ULL(2));
+
return 0;
}
--
2.7.4
