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net/pkt: delete the read-back mechanism in pkt stack

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When app send a pkt-packet, then it will read back it and case some problem. Connection should not read back the message sent by itself.

Signed-off-by: gaohedong <gaohedong@xiaomi.com>
This commit is contained in:
gaohedong
2025-03-15 22:24:05 +08:00
committed by Xiang Xiao
parent 81f42cb2cf
commit 9e0852c6a4
3 changed files with 18 additions and 5 deletions
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net/pkt/pkt.h
+2
View File
@@ -74,6 +74,8 @@ struct pkt_conn_s
*/
struct iob_queue_s readahead; /* Read-ahead buffering */
FAR struct iob_s *pendiob; /* The iob currently being sent */
};
/****************************************************************************
net/pkt/pkt_input.c
+8
View File
@@ -156,6 +156,14 @@ static int pkt_in(FAR struct net_driver_s *dev)
{
uint16_t flags;
if (conn->pendiob == dev->d_iob)
{
/* Do not read back the packet sent by oneself */
conn->pendiob = NULL;
return OK;
}
#if defined(CONFIG_NET_TIMESTAMP) && !defined(CONFIG_ARCH_HAVE_NETDEV_TIMESTAMP)
/* Get system as timestamp if no hardware timestamp */
net/pkt/pkt_sendmsg.c
+8 -5
View File
@@ -60,6 +60,7 @@ struct send_s
{
FAR struct socket *snd_sock; /* Points to the parent socket structure */
FAR struct devif_callback_s *snd_cb; /* Reference to callback instance */
FAR struct pkt_conn_s *snd_conn; /* Reference to the packet connection */
sem_t snd_sem; /* Used to wake up the waiting thread */
FAR const uint8_t *snd_buffer; /* Points to the buffer of data to send */
size_t snd_buflen; /* Number of bytes in the buffer to send */
@@ -115,8 +116,9 @@ static uint16_t psock_send_eventhandler(FAR struct net_driver_s *dev,
goto end_wait;
}
dev->d_len = dev->d_sndlen;
pstate->snd_sent = pstate->snd_buflen;
dev->d_len = dev->d_sndlen;
pstate->snd_sent = pstate->snd_buflen;
pstate->snd_conn->pendiob = dev->d_iob;
/* Make sure no ARP request overwrites this ARP request. This
* flag will be cleared in arp_out().
@@ -224,9 +226,10 @@ ssize_t pkt_sendmsg(FAR struct socket *psock, FAR struct msghdr *msg,
memset(&state, 0, sizeof(struct send_s));
nxsem_init(&state.snd_sem, 0, 0); /* Doesn't really fail */
state.snd_sock = psock; /* Socket descriptor to use */
state.snd_buflen = len; /* Number of bytes to send */
state.snd_buffer = buf; /* Buffer to send from */
state.snd_sock = psock; /* Socket descriptor to use */
state.snd_buflen = len; /* Number of bytes to send */
state.snd_buffer = buf; /* Buffer to send from */
state.snd_conn = psock->s_conn; /* Connection info */
if (len > 0)
{