Function FXmacMsgSgsend

bsp/phytium/libraries/drivers/drv_xmac_msg.c:201–307

}

FError FXmacMsgSgsend(FXmacMsgOs *instance_p, struct pbuf *p)
{
    struct pbuf *q;
    u32 n_pbufs;
    FXmacMsgBd *txbdset, *txbd, *last_txbd = NULL;
    FXmacMsgBd *temp_txbd;
    FError status;
    FXmacMsgBdRing *txring;
    u32 bdindex;
    uintptr tx_payload ;
    u32 max_fr_size;


    txring = &(FXMAC_MSG_GET_TXRING(instance_p->instance));

    /* first count the number of pbufs */
    for (q = p, n_pbufs = 0; q != NULL; q = q->next)
    {
        n_pbufs++;
    }

    /* obtain as many BD's */
    status = FXmacMsgBdRingAlloc(txring, n_pbufs, &txbdset);
    if (status != FT_SUCCESS)
    {
        LOG_I("sgsend: Error allocating TxBD.");
        return ERR_GENERAL;
    }

    for (q = p, txbd = txbdset; q != NULL; q = q->next)
    {
        bdindex = FXMAC_MSG_BD_TO_INDEX(txring, txbd);

        if (instance_p->buffer.tx_pbufs_storage[bdindex])
        {
            LOG_I("txbd %p, txring->base_bd_addr %p", txbd, txring->base_bd_addr);
            LOG_I("PBUFS not available bdindex is %d ", bdindex);
            LOG_I("instance_p->buffer.tx_pbufs_storage[bdindex] %p ", instance_p->buffer.tx_pbufs_storage[bdindex]);
            return ERR_GENERAL;
        }

        /* Send the data from the pbuf to the interface, one pbuf at a
           time. The size of the data in each pbuf is kept in the ->len
           variable. */
        tx_payload = (uintptr)q->payload;
#ifdef RT_USING_SMART
        tx_payload += PV_OFFSET;
#endif
        FXMAC_MSG_BD_SET_ADDRESS_TX(txbd, (uintptr)tx_payload);

        if (instance_p->config & FXMAC_MSG_OS_CONFIG_JUMBO)
        {
            max_fr_size = FXMAC_MSG_MAX_FRAME_SIZE_JUMBO;
        }
        else
        {
            max_fr_size = FXMAC_MSG_MAX_FRAME_SIZE;
        }