[dpdk-dev] [PATCH v2 24/28] net/cnxk: update ethertype for mixed IPsec tunnel versions

[Nithin Dabilpuram]

From: Srujana Challa <scha...@marvell.com>

Adds support to update ethertype for mixed IPsec tunnel
versions. And also sets et_overwr for inbound IPsec.

Signed-off-by: Srujana Challa <scha...@marvell.com>
---
 drivers/common/cnxk/cnxk_security.c |  1 +
 drivers/net/cnxk/cn10k_ethdev.h     |  3 ++-
 drivers/net/cnxk/cn10k_ethdev_sec.c |  2 ++
 drivers/net/cnxk/cn10k_tx.h         | 19 +++++++++++++++++++
 4 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/drivers/common/cnxk/cnxk_security.c 
b/drivers/common/cnxk/cnxk_security.c
index c117fa7..0039a9d 100644
--- a/drivers/common/cnxk/cnxk_security.c
+++ b/drivers/common/cnxk/cnxk_security.c
@@ -344,6 +344,7 @@ cnxk_ot_ipsec_inb_sa_fill(struct roc_ot_ipsec_inb_sa *sa,
        /* There are two words of CPT_CTX_HW_S for ucode to skip */
        sa->w0.s.ctx_hdr_size = 1;
        sa->w0.s.aop_valid = 1;
+       sa->w0.s.et_ovrwr = 1;
 
        rte_wmb();
 
diff --git a/drivers/net/cnxk/cn10k_ethdev.h b/drivers/net/cnxk/cn10k_ethdev.h
index 200cd93..c2a46ad 100644
--- a/drivers/net/cnxk/cn10k_ethdev.h
+++ b/drivers/net/cnxk/cn10k_ethdev.h
@@ -64,7 +64,8 @@ struct cn10k_sec_sess_priv {
                struct {
                        uint32_t sa_idx;
                        uint8_t inb_sa : 1;
-                       uint8_t rsvd1 : 2;
+                       uint8_t outer_ip_ver : 1;
+                       uint8_t mode : 1;
                        uint8_t roundup_byte : 5;
                        uint8_t roundup_len;
                        uint16_t partial_len;
diff --git a/drivers/net/cnxk/cn10k_ethdev_sec.c 
b/drivers/net/cnxk/cn10k_ethdev_sec.c
index dae5ea7..c66730a 100644
--- a/drivers/net/cnxk/cn10k_ethdev_sec.c
+++ b/drivers/net/cnxk/cn10k_ethdev_sec.c
@@ -341,6 +341,8 @@ cn10k_eth_sec_session_create(void *device,
                sess_priv.roundup_byte = rlens->roundup_byte;
                sess_priv.roundup_len = rlens->roundup_len;
                sess_priv.partial_len = rlens->partial_len;
+               sess_priv.mode = outb_sa->w2.s.ipsec_mode;
+               sess_priv.outer_ip_ver = outb_sa->w2.s.outer_ip_ver;
 
                /* Pointer from eth_sec -> outb_sa */
                eth_sec->sa = outb_sa;
diff --git a/drivers/net/cnxk/cn10k_tx.h b/drivers/net/cnxk/cn10k_tx.h
index 52bb71d..ad84464 100644
--- a/drivers/net/cnxk/cn10k_tx.h
+++ b/drivers/net/cnxk/cn10k_tx.h
@@ -302,6 +302,16 @@ cn10k_nix_prep_sec_vec(struct rte_mbuf *m, uint64x2_t 
*cmd0, uint64x2_t *cmd1,
        cmd23 = vsetq_lane_u64((uintptr_t)m | 1, cmd23, 1);
 
        dptr += l2_len;
+
+       if (sess_priv.mode == ROC_IE_SA_MODE_TUNNEL) {
+               if (sess_priv.outer_ip_ver == ROC_IE_SA_IP_VERSION_4)
+                       *((uint16_t *)(dptr - 2)) =
+                               rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
+               else
+                       *((uint16_t *)(dptr - 2)) =
+                               rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6);
+       }
+
        ucode_cmd[1] = dptr;
        ucode_cmd[2] = dptr;
 
@@ -396,6 +406,15 @@ cn10k_nix_prep_sec(struct rte_mbuf *m, uint64_t *cmd, 
uintptr_t *nixtx_addr,
        cmd23 = vsetq_lane_u64((uintptr_t)m | 1, cmd23, 1);
 
        dptr += l2_len;
+
+       if (sess_priv.mode == ROC_IE_SA_MODE_TUNNEL) {
+               if (sess_priv.outer_ip_ver == ROC_IE_SA_IP_VERSION_4)
+                       *((uint16_t *)(dptr - 2)) =
+                               rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
+               else
+                       *((uint16_t *)(dptr - 2)) =
+                               rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6);
+       }
        ucode_cmd[1] = dptr;
        ucode_cmd[2] = dptr;
 
-- 
2.8.4