From ce01c5da50d1d0e41323a6048c930e6539d81e15 Mon Sep 17 00:00:00 2001
From: Monendra Singh Kushwaha <kmonendra@marvell.com>
Date: Tue, 13 May 2025 13:02:16 +0530
Subject: [PATCH] octeon: add port argument for ethernet pause frame

Type: refactor

Change-Id: I64dd556f6252d8f8dff7cb41748baebf89ceb159
Signed-off-by: Monendra Singh Kushwaha <kmonendra@marvell.com>
---
 src/plugins/dev_octeon/init.c   | 18 ++++++++++++++++++
 src/plugins/dev_octeon/octeon.h |  6 ++++++
 src/plugins/dev_octeon/port.c   | 12 +++++++++++-
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/src/plugins/dev_octeon/init.c b/src/plugins/dev_octeon/init.c
index e1a6f9064ba..287810f1114 100644
--- a/src/plugins/dev_octeon/init.c
+++ b/src/plugins/dev_octeon/init.c
@@ -61,6 +61,23 @@ static struct
 #undef _
 };
 
+static vnet_dev_arg_t oct_port_args[] = {
+  {
+    .id = OCT_PORT_ARG_EN_ETH_PAUSE_FRAME,
+    .name = "eth_pause_frame",
+    .desc = "Enable ethernet pause frame support, applicable to network "
+	    "devices only",
+    .type = VNET_DEV_ARG_TYPE_BOOL,
+    .default_val.boolean = false,
+  },
+  {
+    .id = OCT_PORT_ARG_END,
+    .name = "end",
+    .desc = "Argument end",
+    .type = VNET_DEV_ARG_END,
+  },
+};
+
 static vnet_dev_arg_t oct_dev_args[] = {
   {
     .id = OCT_DEV_ARG_CRYPTO_N_DESC,
@@ -168,6 +185,7 @@ oct_init_nix (vlib_main_t *vm, vnet_dev_t *dev)
       },
       .data_size = sizeof (oct_port_t),
       .initial_data = &oct_port,
+      .args = oct_port_args,
     },
     .rx_node = &oct_rx_node,
     .tx_node = &oct_tx_node,
diff --git a/src/plugins/dev_octeon/octeon.h b/src/plugins/dev_octeon/octeon.h
index 24d51f9091e..d3abcd7d2e4 100644
--- a/src/plugins/dev_octeon/octeon.h
+++ b/src/plugins/dev_octeon/octeon.h
@@ -23,6 +23,12 @@
 
 #define OCT_BATCH_ALLOC_IOVA0_MASK 0xFFFFFFFFFFFFFF80
 
+typedef enum
+{
+  OCT_PORT_ARG_EN_ETH_PAUSE_FRAME = 1,
+  OCT_PORT_ARG_END
+} oct_port_args_t;
+
 typedef enum
 {
   OCT_DEV_ARG_CRYPTO_N_DESC = 1,
diff --git a/src/plugins/dev_octeon/port.c b/src/plugins/dev_octeon/port.c
index 0fc3fcb7871..957af9160ea 100644
--- a/src/plugins/dev_octeon/port.c
+++ b/src/plugins/dev_octeon/port.c
@@ -132,11 +132,19 @@ oct_port_init (vlib_main_t *vm, vnet_dev_port_t *port)
   vnet_dev_port_interfaces_t *ifs = port->interfaces;
   u8 mac_addr[PLT_ETHER_ADDR_LEN];
   struct roc_nix *nix = cd->nix;
+  bool is_pause_frame_enable = false;
   vnet_dev_rv_t rv;
   int rrv;
 
   log_debug (dev, "port init: port %u", port->port_id);
 
+  foreach_vnet_dev_port_args (arg, port)
+    {
+      if (arg->id == OCT_PORT_ARG_EN_ETH_PAUSE_FRAME &&
+	  vnet_dev_arg_get_bool (arg))
+	is_pause_frame_enable = true;
+    }
+
   if ((rrv = roc_nix_lf_alloc (nix, ifs->num_rx_queues, ifs->num_tx_queues,
 			       rxq_cfg)))
     {
@@ -221,7 +229,9 @@ oct_port_init (vlib_main_t *vm, vnet_dev_port_t *port)
     }
 
   /* Configure pause frame flow control*/
-  if ((rv = oct_port_pause_flow_control_init (vm, port)))
+
+  if (is_pause_frame_enable &&
+      (rv = oct_port_pause_flow_control_init (vm, port)))
     {
       oct_port_deinit (vm, port);
       return rv;
-- 
2.16.6