On 1/3/25 02:03, Jerome Forissier wrote:
On 1/3/25 02:52, E Shattow wrote:
On 1/2/25 17:40, Tom Rini wrote:
On Thu, Jan 02, 2025 at 05:34:57PM -0800, E Shattow wrote:
Tom sorry about sending this reply twice, struggle here is with Thunderbird
mail UI sometimes hiding "Reply All" and it missed the mail list first time
around.
No problem.
On 1/2/25 14:47, Tom Rini wrote:
On Thu, Jan 02, 2025 at 02:26:06PM -0800, E Shattow wrote:
Problem: 'dhcp' must be ran twice when the network cable is plugged into a
port other than the first network port.
Network cable plugged into bottom (first) Ethernet port:
1. Power on
2. StarFive # dhcp
ethernet@16030000 Waiting for PHY auto negotiation to complete....... done
DHCP client bound to address 192.168.2.51 (3678 ms)
Network cable plugged into top (second) Ethernet port:
1. Power on
2. StarFive # dhcp
ethernet@16030000 Waiting for PHY auto negotiation to complete.........
TIMEOUT !
phy_startup() failed: -110
FAILED: -110
ethernet@16040000 Waiting for PHY auto negotiation to complete...... done
ethernet@16030000 Waiting for PHY auto negotiation to complete.........
TIMEOUT !
phy_startup() failed: -110
FAILED: -110
Could not start ethernet@16030000
3. StarFive # dhcp
DHCP client bound to address 192.168.2.77 (31 ms)
What happens when you set ethact to 1 first?
'1' literal does not seem to do something so I guess it is meant the id of
the first ethernet interface:
Yes, I misspoke sorry.
From power-on:
...
starfive_7110_pcie pcie@2b000000: Starfive PCIe bus probed.
starfive_7110_pcie pcie@2c000000: Starfive PCIe bus probed.
In: serial@10000000
Out: serial@10000000
Err: serial@10000000
Net: eth0: ethernet@16030000, eth1: ethernet@16040000
starting USB...
No USB controllers found
Working FDT set to ff700a10
StarFive # env print ethact
## Error: "ethact" not defined
StarFive # env set ethact 1
StarFive # dhcp
ethernet@16030000 Waiting for PHY auto negotiation to complete.........
TIMEOUT !
phy_startup() failed: -110
FAILED: -110
ethernet@16040000 Waiting for PHY auto negotiation to complete...... done
EQOS_DMA_MODE_SWR stuck
FAILED: -110
Could not start ethernet@16030000
Again, from power-on:
starfive_7110_pcie pcie@2b000000: Starfive PCIe bus probed.
starfive_7110_pcie pcie@2c000000: Starfive PCIe bus probed.
In: serial@10000000
Out: serial@10000000
Err: serial@10000000
Net: eth0: ethernet@16030000, eth1: ethernet@16040000
starting USB...
No USB controllers found
Working FDT set to ff700a10
StarFive # env print ethact
## Error: "ethact" not defined
StarFive # env set ethact ethernet@16040000
StarFive # dhcp
ethernet@16040000 Waiting for PHY auto negotiation to complete...... done
DHCP client bound to address 192.168.2.77 (149 ms)
So then yes, the second interface works when ethact is set to use that
directly. This is the same behavior as the legacy stack I believe.
Legacy stack does actually rotate and complete successfully when ethact
environment variable does not exist and (eventually) configure the second
interface though. Here with LwIP the procedure fails.
Notice that here it starts with ethernet@16030000, then rotates to
ethernet@16040000 unsuccessfully, and back again to ethernet@16030000 before
(again) failing and giving up. There is a network cable plugged into
'ethernet@16040000' port and if we try the command again the environment
variable ethact retained 'ethact=ethernet@16040000' from the failed procedure
so you're right it works as it should... except that it totally failed to do
what was expected the first time.
That's unexpected indeed.
Is this exposing a problem with this board network driver and behavior or is it
something with LwIP ?
Hard to tell at this point. One thing I know for sure is that lwIP expects
eth_set_current() (called from do_dhcp()) to actually pick a valid
interface if there is one. So it should definitely select ethernet@16040000
in your scenario. Adding debug prints to eth_set_current(),
eth_current_changed() etc. should help.
Thanks,
StarFive # dhcp
!!! eth_set_current(): entered function
!!! eth_set_current(): conditional 1
!!! eth_set_current(): conditional 2
!!! eth_set_current(): conditional 5
!!! eth_current_changed(): entered function
!!! eth_current_changed(): conditional 2
!!! eth_current_changed(): conditional 3
!!! eth_current_changed(): leaving function
!!! eth_set_current(): leaving function
ethernet@16030000 Waiting for PHY auto negotiation to complete.........
TIMEOUT !
phy_startup() failed: -110
FAILED: -110
!!! eth_current_changed(): entered function
!!! eth_current_changed(): conditional 2
!!! eth_current_changed(): conditional 3
!!! eth_current_changed(): leaving function
ethernet@16040000 Waiting for PHY auto negotiation to complete...... done
ethernet@16030000 Waiting for PHY auto negotiation to complete.........
TIMEOUT !
phy_startup() failed: -110
FAILED: -110
Could not start ethernet@16030000
StarFive #
For reference the modified functions:
void eth_current_changed(void)
{
char *act = env_get("ethact");
char *ethrotate;
printf("!!! eth_current_changed(): entered function\n");
/*
* The call to eth_get_dev() below has a side effect of rotating
* ethernet device if uc_priv->current == NULL. This is not what
* we want when 'ethrotate' variable is 'no'.
*/
ethrotate = env_get("ethrotate");
if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0))
{
printf("!!! eth_current_changed(): conditional 1\n");
return;
}
/* update current ethernet name */
if (eth_get_dev()) {
printf("!!! eth_current_changed(): conditional 2\n");
if (act == NULL || strcmp(act, eth_get_name()) != 0)
{
printf("!!! eth_current_changed(): conditional 3\n");
env_set("ethact", eth_get_name());
}
}
/*
* remove the variable completely if there is no active
* interface
*/
else if (act != NULL)
{
printf("!!! eth_current_changed(): conditional 4\n");
env_set("ethact", NULL);
}
printf("!!! eth_current_changed(): leaving function\n");
}
void eth_set_current(void)
{
static char *act;
static int env_changed_id;
int env_id;
printf("!!! eth_set_current(): entered function\n");
env_id = env_get_id();
if ((act == NULL) || (env_changed_id != env_id)) {
printf("!!! eth_set_current(): conditional 1\n");
act = env_get("ethact");
env_changed_id = env_id;
}
if (act == NULL) {
printf("!!! eth_set_current(): conditional 2\n");
char *ethprime = env_get("ethprime");
void *dev = NULL;
if (ethprime)
{
printf("!!! eth_set_current(): conditional 3\n");
dev = eth_get_dev_by_name(ethprime);
}
if (dev)
{
printf("!!! eth_set_current(): conditional 4\n");
eth_set_dev(dev);
}
else
{
printf("!!! eth_set_current(): conditional 5\n");
eth_set_dev(NULL);
}
} else {
printf("!!! eth_set_current(): conditional 6\n");
eth_set_dev(eth_get_dev_by_name(act));
}
eth_current_changed();
printf("!!! eth_set_current(): leaving function\n");
}
Hopefully this is enough to make sense of it? Let me know, thanks!
-E
