Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

Adrian Figueroa wrote: There is a list of chained DMA transmit descriptors, as they seem to be called. There is always four of them, this is hard coded. My version of the STM32F4xx HAL driver leaves this as a define to the application... But you're limited by DMA-capable RAM, of course.

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

[mailto:lwip-users-bounces+adrian.figueroa=tu-dresden...@nongnu.org] Im Auftrag von Noam Weissman Gesendet: Friday, September 15, 2017 10:42 AM An: Mailing list for lwIP users <lwip-users@nongnu.org> Betreff: Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error Hi

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

- Von: lwip-users [mailto:lwip-users-bounces+adrian.figueroa=tu-dresden...@nongnu.org] Im Auftrag von Adrian Figueroa Gesendet: Friday, September 15, 2017 8:31 AM An: Mailing list for lwIP users <lwip-users@nongnu.org> Betreff: Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

ian.figue...@tu-dresden.de> Sent: Friday, September 15, 2017 9:30 AM To: Mailing list for lwIP users Subject: Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error That memcpy is also used on the F7. The drivers are probably the same: /* Copy data to Tx buffer*/ memc

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

Von: lwip-users [mailto:lwip-users-bounces+adrian.figueroa=tu-dresden...@nongnu.org] Im Auftrag von goldsi...@gmx.de Gesendet: Thursday, September 14, 2017 5:46 PM An: Mailing list for lwIP users <lwip-users@nongnu.org> Betreff: Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

Adrian Figueroa wrote: I can see some errors in low_level_output() in ethernetif.c. This fails: if((DmaTxDesc->Status & ETH_DMATXDESC_OWN) != (uint32_t)RESET) { errval = ERR_USE; goto error; } I don't know the F7 driver, but my F4 driver seems to have

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

for lwIP users <lwip-users@nongnu.org> Betreff: Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error Adrian Figueroa wrote:: >I have no idea why I have no packet loss with TCP_WND and TCP_SND_BUF >set to 2xTCP_MSS. Instead, I get rare ZeroWindow errors from my

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

Adrian Figueroa wrote:: >I have no idea why I have no packet loss with TCP_WND and TCP_SND_BUF >set to 2xTCP_MSS. Instead, I get rare ZeroWindow errors from my PC. Because you don't fill your DMA buffers in this case and as a result, you don't drop tx segments. Implementing a zero copy driver

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

Nachricht- Von: lwip-users [mailto:lwip-users-bounces+adrian.figueroa=tu-dresden...@nongnu.org] Im Auftrag von Nathan Hartman Gesendet: Thursday, September 14, 2017 2:10 PM An: Mailing list for lwIP users <lwip-users@nongnu.org> Betreff: Re: [lwip-users] ERR_MEM when sending large data, LWIP

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

On Sep 14, 2017, at 5:09 AM, Adrian Figueroa wrote: > > I did some more testing and it does not seem to be systematic. As lwIP is not > showing errors in any of the stats, it is likely not its fault. > > Do you have any suggestions on how to find the reason for

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

Adrian Figueroa wrote: >This fails: > > if((DmaTxDesc->Status & ETH_DMATXDESC_OWN) != (uint32_t)RESET) > { >errval = ERR_USE; >goto error; > } > >When DmaTxDesc->Status equals 818937856. What does this mean? Is the >DMA used by something else? I could mean your

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

Perhaps your data is not being "lost" by lwIP but your driver ? Since you've found it is systematic, try to debug and follow the path to find where and what. ___ lwip-users mailing list lwip-users@nongnu.org

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

] ERR_MEM when sending large data, LWIP stats show no error Ha, I love the word "severe" being used here... I don't know, I've read some guys finding bugs on the Cube drivers, and seems to vary depending on which micro you are using. Search the list. The fact is that your messages are ge

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

Ha, I love the word "severe" being used here... I don't know, I've read some guys finding bugs on the Cube drivers, and seems to vary depending on which micro you are using. Search the list. The fact is that your messages are getting lost and you need to find where... I suggest running an echo

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

You have missing frames here. Frame #8 sends 1460 bytes starting @5841 Frame #9 sends 1460 bytes starting @8761 8761 - 5841 = 2920 = 2*1460 You have a frame "#8.5" (the one that should have been sent between 8 and 9) that is missing. It is getting lost somewhere between your sender and your

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

eptember 1, 2017 11:15 AM To: lwip-users@nongnu.org<mailto:lwip-users@nongnu.org> Subject: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error Hello all, I am trying to send large amounts of data continuously. I use lwIP as a TCP client on an STM32F7 and Matlab on

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

lrd@nongnu.org> on behalf of Adrian Figueroa <adrian.figue...@tu-dresden.de> Sent: Friday, September 1, 2017 11:15 AM To: lwip-users@nongnu.org Subject: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error Hello all, I am trying to send large amounts of data continuously

Re: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error

Adrian Figueroa Gesendet: Friday, September 1, 2017 10:16 AM An: lwip-users@nongnu.org Betreff: [lwip-users] ERR_MEM when sending large data, LWIP stats show no error Hello all, I am trying to send large amounts of data continuously. I use lwIP as a TCP client on an STM32F7 and Matlab on a PC