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Altera_Forum
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15 years ago

Altera TSE driver and example program for lwIP (1.3.2)

After many many requests and complaints about lack of support and/or documentation for support of lwIP for the Altera TSE, I have developed a drop-in TSE driver and example program and made this avai...
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Altera_Forum
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12 years ago

The following optimization can be applied to lwip_tse_mac.c:

In function tse_sgdmaRx_isr: Replace the init_tset_descriptor function call (spans 6 or 7 lines) just after label _dump: with the following:

IOWR_32DIRECT(&tse_ptr->desc[ALTERA_TSE_FIRST_RX_SGDMA_DESC_OFST].write_addr, 0, (u32_t) ethernetif->lwip_rx_pbuf[ethernetif->lwipRxIndexIsr]->payload);

IOWR_8DIRECT(&tse_ptr->desc[ALTERA_TSE_FIRST_RX_SGDMA_DESC_OFST].control, 0, ALTERA_AVALON_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK);

I don't claim credit for this - I see they did this in the NIOS 12.1 TSE driver and it makes a lot of sense.

Bill A