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net: add NETDEV_RX_STAMP flag in d_features

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Replace compile-time CONFIG_ARCH_HAVE_NETDEV_TIMESTAMP with
a runtime NETDEV_RX_STAMP bit in net_driver_s.d_features.
Drivers providing hardware RX timestamps set the flag at
probe time; the stack checks it at runtime.


Signed-off-by: OceanfromXiaomi <zhaohaiyang1@xiaomi.com>
This commit is contained in:
OceanfromXiaomi 2025-11-25 17:14:35 +08:00 • committed by Xiang Xiao
parent c6878db031
commit 28402b9b35
10 changed files with 49 additions and 28 deletions
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1
arch/arm/src/common/stm32/Kconfig.eth
View file

@ -188,7 +188,6 @@ config STM32_ETH_PTP_RTC_HIRES
config STM32_ETH_TIMESTAMP_RX
bool "Hardware timestamping of received packets"
depends on STM32_COMMON_LEGACY && STM32_ETH_PTP && NET_TIMESTAMP && STM32_ETH_ENHANCEDDESC
select ARCH_HAVE_NETDEV_TIMESTAMP
default n
---help---
Timestamp all received Ethernet packets.

4
arch/arm/src/common/stm32/stm32_eth_m3m4_v1.c
View file

@ -4234,6 +4234,10 @@ int stm32_ethinitialize(int intf)
return ret;
}
#ifdef CONFIG_STM32_ETH_TIMESTAMP_RX
priv->dev.d_features |= NETDEV_RX_STAMP;
#endif
/* Register the device with the OS so that socket IOCTLs can be performed */
netdev_register(&priv->dev, NET_LL_ETHERNET);

8
include/nuttx/mm/iob.h
View file

@ -132,10 +132,10 @@ struct iob_s
#ifdef CONFIG_NET_TIMESTAMP
/* timestamp of the packet.
* If CONFIG_ARCH_HAVE_NETDEV_TIMESTAMP is true, the timestamp is provided
* by hardware driver. Otherwise it is filled in by kernel when the packet
* is passed into respective protocol layer. The timestamp is in
* CLOCK_REALTIME.
* d_features is the member of net_driver_s struct, if the NETDEV_RX_STAMP
* bit of d_features is set, the timestamp is provided by hardware driver.
* Otherwise it is filled in by kernel when the packet is passed into
* respective protocol layer. The timestamp is in CLOCK_REALTIME.
*/
struct timespec io_time;

1
include/nuttx/net/netdev.h
View file

@ -84,6 +84,7 @@
#define NETDEV_TX_CSUM (1 << 1) /* Netdev support hardware tx checksum */
#define NETDEV_RX_CSUM (1 << 2) /* Netdev support hardware rx checksum */
#define NETDEV_RX_STAMP (1 << 3) /* Netdev support hardware timestamp */
/* Determine the largest possible address */

4
net/Kconfig
View file

@ -23,10 +23,6 @@ config ARCH_HAVE_NETDEV_STATISTICS
bool
default n
config ARCH_HAVE_NETDEV_TIMESTAMP
bool
default n
config NET_WRITE_BUFFERS
bool
default n

13
net/can/can_input.c
View file

@ -229,11 +229,16 @@ static int can_in(FAR struct net_driver_s *dev)
return OK;
}
/* Store reception timestamp if enabled and not provided by hardware. */
/* Storing reception timestamp provided by realtime
* if timestamp no provided by hardware.
*/
#if defined(CONFIG_NET_TIMESTAMP) && !defined(CONFIG_ARCH_HAVE_NETDEV_TIMESTAMP)
clock_gettime(CLOCK_REALTIME, &dev->d_iob->io_time);
#endif
#ifdef CONFIG_NET_TIMESTAMP
if ((dev->d_features & NETDEV_RX_STAMP) == 0)
{
clock_gettime(CLOCK_REALTIME, &dev->d_iob->io_time);
}
#endif /* CONFIG_NET_TIMESTAMP */
can_conn_list_lock();

13
net/devif/ipv4_input.c
View file

@ -231,11 +231,16 @@ static int ipv4_in(FAR struct net_driver_s *dev)
bool isfrag;
int ret = OK;
/* Store reception timestamp if enabled and not provided by hardware. */
/* Storing reception timestamp provided by realtime
* if timestamp no provided by hardware.
*/
#if defined(CONFIG_NET_TIMESTAMP) && !defined(CONFIG_ARCH_HAVE_NETDEV_TIMESTAMP)
clock_gettime(CLOCK_REALTIME, &dev->d_iob->io_time);
#endif
#ifdef CONFIG_NET_TIMESTAMP
if ((dev->d_features & NETDEV_RX_STAMP) == 0)
{
clock_gettime(CLOCK_REALTIME, &dev->d_iob->io_time);
}
#endif /* CONFIG_NET_TIMESTAMP */
/* Handle ARP on input then give the IPv4 packet to the network layer */

13
net/devif/ipv6_input.c
View file

@ -229,11 +229,16 @@ static int ipv6_in(FAR struct net_driver_s *dev)
bool isfrag = false;
#endif
/* Store reception timestamp if enabled and not provided by hardware. */
/* Storing reception timestamp provided by realtime
* if timestamp no provided by hardware.
*/
#if defined(CONFIG_NET_TIMESTAMP) && !defined(CONFIG_ARCH_HAVE_NETDEV_TIMESTAMP)
clock_gettime(CLOCK_REALTIME, &dev->d_iob->io_time);
#endif
#ifdef CONFIG_NET_TIMESTAMP
if ((dev->d_features & NETDEV_RX_STAMP) == 0)
{
clock_gettime(CLOCK_REALTIME, &dev->d_iob->io_time);
}
#endif /* CONFIG_NET_TIMESTAMP */
/* This is where the input processing starts. */

7
net/netdev/netdev_input.c
View file

@ -80,8 +80,11 @@ int netdev_input(FAR struct net_driver_s *dev,
return ret;
}
#if defined(CONFIG_NET_TIMESTAMP) && defined(CONFIG_ARCH_HAVE_NETDEV_TIMESTAMP)
dev->d_iob->io_time = dev->d_rxtime;
#if defined(CONFIG_NET_TIMESTAMP)
if ((dev->d_features & NETDEV_RX_STAMP) != 0)
{
dev->d_iob->io_time = dev->d_rxtime;
}
#endif
/* Copy data to iob entry */

13
net/pkt/pkt_input.c
View file

@ -157,12 +157,15 @@ static int pkt_in(FAR struct net_driver_s *dev)
return OK;
}
#if defined(CONFIG_NET_TIMESTAMP) && !defined(CONFIG_ARCH_HAVE_NETDEV_TIMESTAMP)
/* Get system as timestamp if no hardware timestamp */
if (_SO_GETOPT(conn->sconn.s_options, SO_TIMESTAMP) ||
_SO_GETOPT(conn->sconn.s_options, SO_TIMESTAMPNS))
#ifdef CONFIG_NET_TIMESTAMP
if ((dev->d_features & NETDEV_RX_STAMP) == 0 &&
(_SO_GETOPT(conn->sconn.s_options, SO_TIMESTAMP) ||
_SO_GETOPT(conn->sconn.s_options, SO_TIMESTAMPNS)))
{
/* Storing reception timestamp provided by realtime
* if timestamp no provided by hardware.
*/
clock_gettime(CLOCK_REALTIME, &dev->d_iob->io_time);
}
#endif /* CONFIG_NET_TIMESTAMP */