Re: [PATCH] hw/dma/xilinx_axidma: Check DMASR.HALTED to prevent infinite loop.

[Peter Maydell]

On Fri, 19 May 2023 at 07:21, Tommy Wu <tommy.wu@sifive.com> wrote:
>
> When we receive a packet from the xilinx_axienet and then try to s2mem
> through the xilinx_axidma, if the descriptor ring buffer is full in the
> xilinx axidma driver, we’ll assert the DMASR.HALTED in the
> function : stream_process_s2mem and return 0. In the end, we’ll be stuck in
> an infinite loop in axienet_eth_rx_notify.
>
> This patch checks the DMASR.HALTED state when we try to push data
> from xilinx axi-enet to xilinx axi-dma. When the DMASR.HALTED is asserted,
> we will not keep pushing the data and then prevent the infinte loop.
>
> Signed-off-by: Tommy Wu <tommy.wu@sifive.com>



Applied to target-arm.next, thanks.

-- PMM