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Subject[PATCH 19/21] net: thunderx: Configure tunnelling protocol parsing
Date
From: Zyta Szpak <zr@semihalf.com>

This patch enables parsing of inner layers for tunnelled packets.

Signed-off-by: Zyta Szpak <zr@semihalf.com>
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
---
drivers/net/ethernet/cavium/thunder/nic_main.c | 21 +++++++++++++++++++++
drivers/net/ethernet/cavium/thunder/nic_reg.h | 13 +++++++++++++
2 files changed, 34 insertions(+)

diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c
index 167291b..25618d2 100644
--- a/drivers/net/ethernet/cavium/thunder/nic_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nic_main.c
@@ -835,6 +835,25 @@ static int nic_reset_stat_counters(struct nicpf *nic,
return 0;
}

+static void nic_enable_tunnel_parsing(struct nicpf *nic, int vf)
+{
+ u64 prot_def = (IPV6_PROT << 32) | (IPV4_PROT << 16) | ET_PROT;
+ u64 vxlan_prot_def = (IPV6_PROT_DEF << 32) |
+ (IPV4_PROT_DEF) << 16 | ET_PROT_DEF;
+
+ /* Configure tunnel parsing parameters */
+ nic_reg_write(nic, NIC_PF_RX_GENEVE_DEF,
+ (1ULL << 63 | UDP_GENEVE_PORT_NUM));
+ nic_reg_write(nic, NIC_PF_RX_GENEVE_PROT_DEF,
+ ((7ULL << 61) | prot_def));
+ nic_reg_write(nic, NIC_PF_RX_NVGRE_PROT_DEF,
+ ((7ULL << 61) | prot_def));
+ nic_reg_write(nic, NIC_PF_RX_VXLAN_DEF_0_1,
+ ((1ULL << 63) | UDP_VXLAN_PORT_NUM));
+ nic_reg_write(nic, NIC_PF_RX_VXLAN_PROT_DEF,
+ ((0xfULL << 60) | vxlan_prot_def));
+}
+
static void nic_enable_vf(struct nicpf *nic, int vf, bool enable)
{
int bgx, lmac;
@@ -908,6 +927,8 @@ static void nic_handle_mbx_intr(struct nicpf *nic, int vf)
*/
if (pass2_silicon(nic->pdev))
nic_reg_write(nic, NIC_PF_RX_CFG, 0x01);
+ if (!pass1_silicon(nic->pdev))
+ nic_enable_tunnel_parsing(nic, vf);
break;
case NIC_MBOX_MSG_RQ_BP_CFG:
reg_addr = NIC_PF_QSET_0_127_RQ_0_7_BP_CFG |
diff --git a/drivers/net/ethernet/cavium/thunder/nic_reg.h b/drivers/net/ethernet/cavium/thunder/nic_reg.h
index b4a7953..db9c632 100644
--- a/drivers/net/ethernet/cavium/thunder/nic_reg.h
+++ b/drivers/net/ethernet/cavium/thunder/nic_reg.h
@@ -36,6 +36,19 @@
#define NIC_PF_MAILBOX_ENA_W1C (0x0450)
#define NIC_PF_MAILBOX_ENA_W1S (0x0470)
#define NIC_PF_RX_ETYPE_0_7 (0x0500)
+#define NIC_PF_RX_GENEVE_DEF (0x0580)
+#define UDP_GENEVE_PORT_NUM 0x17C1ULL
+#define NIC_PF_RX_GENEVE_PROT_DEF (0x0588)
+#define IPV6_PROT 0x86DDULL
+#define IPV4_PROT 0x800ULL
+#define ET_PROT 0x6558ULL
+#define NIC_PF_RX_NVGRE_PROT_DEF (0x0598)
+#define NIC_PF_RX_VXLAN_DEF_0_1 (0x05A0)
+#define UDP_VXLAN_PORT_NUM 0x12B5
+#define NIC_PF_RX_VXLAN_PROT_DEF (0x05B0)
+#define IPV6_PROT_DEF 0x2ULL
+#define IPV4_PROT_DEF 0x1ULL
+#define ET_PROT_DEF 0x3ULL
#define NIC_PF_RX_CFG (0x05D0)
#define NIC_PF_PKIND_0_15_CFG (0x0600)
#define NIC_PF_ECC0_FLIP0 (0x1000)
--
2.7.4
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