STM32F767 ethernet rychlost

[Jaroslav Buchta]

Tak jsem zjistil, ze klicove je pouzit
tcp_nagle_disable(pcb);
Nyni to zase zdrzuje PC nez odpovi ACK, jdu zkoumat dal...

Dne 07.10.2017 v 11:31 Jaroslav Buchta napsal(a):
> Zdravim,
>
> mam problem s implementaci subj, pouziva HAL, vse nakonfigurovano 
> pokusne v prazdnem projektu.
>
> Aplikace pouze odesila data po pripojeni klienta, prenosova rychlost 
> je zoufala, asi 1kB/s.... Netusi nekdo, v cem muze byt problem? Asi 
> malo nejakych bufferu? Ale experimenty nikam nevedly.
>
> Pres switch to chodi asi 3x rychleji nez primo pripojene k PC, asi to 
> servisni komunikace nejak zahlti? Nebo delam neco spatne?
>
> Sledovana komunikace ale vypada plynula bez komplikaci, .123 je PC, .9 
> STM, viz priloha
>
>
> Vypis dulezite casti programu:
>
> /* USER CODE BEGIN 4 */
> static err_t echo_accept(void *arg, struct tcp_pcb *pcb, err_t err);
> static err_t echo_recvd(void * arg, struct tcp_pcb * tpcb, struct pbuf 
> * p, err_t err);
> static err_t echo_sent(void * arg, struct tcp_pcb * tpcb, u16_t len);
> static void echo_err(void * arg, err_t err);
>
> static struct tcp_pcb *pcbListened = NULL;
> static struct tcp_pcb *pcbAccepted = NULL;
> static int connCount;
> static osSemaphoreId transferSemphHandle = NULL;
>
> static err_t echo_accept(void *arg, struct tcp_pcb *pcb, err_t err)
> {
>     LWIP_UNUSED_ARG(arg);
>     LWIP_UNUSED_ARG(err);
>     if (pcbListened == NULL) return ERR_ARG;
>     if (connCount >= 1)
>     {
>         tcp_abort(pcb);
>         return ERR_ABRT;
>     }
>     connCount++;
>     tcp_arg(pcb, NULL);
>     tcp_recv(pcb, echo_recvd);
>     tcp_sent(pcb, echo_sent);
>     tcp_err(pcb, echo_err);
>     //      tcp_setprio(pcb, TCP_PRIO_MIN);
>     tcp_accepted(pcbListened);
>     pcbAccepted = pcb;
>     return ERR_OK;
> }
>
>
> static err_t echo_recvd(void * arg, struct tcp_pcb * tpcb, struct pbuf 
> * p, err_t err)
> {
>     if (p == NULL)
>     {   // EOF signal, connection closed
>         tcp_close(tpcb);
>         pcbAccepted = NULL;
>         connCount--;
>         if (arg != NULL)
>         {
>             //            mbsDescFree((MBS_Descriptor *)arg);
>         }
>     }
>     else
>     {
>         tcp_recved(tpcb, p->tot_len);
>         //        DBGUSART_Format("MBS-> Received %08x, %d B"DBGSTRNL, 
> (uint32_t)tpcb, p->tot_len);
>         uint8_t *pd = (uint8_t *)p->payload;
>         uint16_t len = p->len;
>         uint8_t exc = 0;
>
>         if (p != NULL) pbuf_free(p);
>     }
>     return ERR_OK;
> }
>
> uint8_t bufSend[1024];
> uint8_t sendPcs = 0;
>
> static err_t echo_sent(void * arg, struct tcp_pcb * tpcb, u16_t len)
> {
>     osSemaphoreRelease(transferSemphHandle);
>     //TerminalFormatNl("MBS-> Sent %08x, %d B", (uint32_t)tpcb, 
> (uint32_t)len);
>     //osMutexRelease(transferMutexHandle);
>     HAL_GPIO_WritePin(LD3_GPIO_Port, LD3_Pin, GPIO_PIN_RESET);
>     return ERR_OK;
> }
>
> static void echo_err(void * arg, err_t err)
> {
>
> }
>
>
>
> /* USER CODE END 4 */
>
> /* StartDefaultTask function */
> void StartDefaultTask(void const * argument)
> {
>   /* init code for LWIP */
>   MX_LWIP_Init();
>
>   /* USER CODE BEGIN 5 */
>     osSemaphoreDef(transferSemph);
>     transferSemphHandle = 
> osSemaphoreCreate(osSemaphore(transferSemph), 1);
>
>     struct tcp_pcb *pcb = tcp_new();
>     if (pcb == NULL) Error_Handler();
>     err_t err = tcp_bind(pcb, IP_ADDR_ANY, 52222);
>     if (err != ERR_OK) Error_Handler();
>     pcb = tcp_listen(pcb);
>     if (pcb == NULL) Error_Handler();
>     tcp_accept(pcb, echo_accept);
>     pcbListened = pcb;
>
>     uint32_t tckLed = 0;
>
>     /* Infinite loop */
>     for(;;)
>     {
>         uint32_t tck = osKernelSysTick();
>         if (tck-tckLed>250)
>         {
>             tckLed = tck;
>             HAL_GPIO_TogglePin(LD2_GPIO_Port, LD2_Pin);
>         }
>         osSemaphoreWait(transferSemphHandle, 50);
>         if (connCount != 0)
>         {
>             err_t e =  tcp_write(pcbAccepted, bufSend, 
> sizeof(bufSend), TCP_WRITE_FLAG_MORE);
>             if (e == ERR_OK)
>             {
>                 HAL_GPIO_WritePin(LD3_GPIO_Port, LD3_Pin, GPIO_PIN_SET);
>             }
>             else
>             {
>
>             }
>         }
>     }
>   /* USER CODE END 5 */
> }
>
>
>
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