From 24754f47cefc0284aeea0d122698789c51ff050d Mon Sep 17 00:00:00 2001
From: wu-changsheng <wuchangsheng2@huawei.com>
Date: Thu, 22 Dec 2022 23:19:09 +0800
Subject: [PATCH 3/4] fix-send-pkts-bluk-err

---
 src/lstack/include/lstack_protocol_stack.h |  2 ++
 src/lstack/netif/lstack_ethdev.c           | 16 ++++++----------
 2 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/src/lstack/include/lstack_protocol_stack.h b/src/lstack/include/lstack_protocol_stack.h
index c706afc..de3d312 100644
--- a/src/lstack/include/lstack_protocol_stack.h
+++ b/src/lstack/include/lstack_protocol_stack.h
@@ -29,8 +29,10 @@
 #define SOCK_SEND_RING_SIZE         (32)
 #define SOCK_SEND_REPLENISH_THRES   (16)
 #define WAKEUP_MAX_NUM              (32)
+
 #define STACK_SEND_MAX              2048
 #define STACK_SEND_MASK             (STACK_SEND_MAX - 1)
+#define STACK_SEND_INDEX(index)     ((index) & STACK_SEND_MASK)
 
 struct rte_mempool;
 struct rte_ring;
diff --git a/src/lstack/netif/lstack_ethdev.c b/src/lstack/netif/lstack_ethdev.c
index 5729ebf..4426b1a 100644
--- a/src/lstack/netif/lstack_ethdev.c
+++ b/src/lstack/netif/lstack_ethdev.c
@@ -149,20 +149,16 @@ int32_t gazelle_eth_dev_poll(struct protocol_stack *stack, bool use_ltran_flag,
 
 static void add_send_pkt(struct protocol_stack *stack, struct rte_mbuf *mbuf)
 {
-    if (stack->send_end + 1 != stack->send_start) {
-        stack->send_pkts[stack->send_end & STACK_SEND_MASK] = mbuf;
-        stack->send_end++;
-        return;
-    }
-
-    stack->stats.send_pkts_fail++;
     do {
-        stack_send_pkts(stack);
-        if (stack->send_end + 1 != stack->send_start) {
-            stack->send_pkts[stack->send_end & STACK_SEND_MASK] = mbuf;
+        if (STACK_SEND_INDEX(stack->send_end + 1) != STACK_SEND_INDEX(stack->send_start)) {
+            stack->send_pkts[STACK_SEND_INDEX(stack->send_end)] = mbuf;
             stack->send_end++;
             return;
         }
+
+        stack_send_pkts(stack);
+
+        stack->stats.send_pkts_fail++;
     } while (1);
 }
 
-- 
2.23.0