[PATCH net-next 3/6] net: bcmasp: Add support for ASP2.0 Ethernet controller

Florian Fainelli f.fainelli at gmail.com
Wed Apr 19 16:33:50 UTC 2023


On 4/18/23 23:35, Heiner Kallweit wrote:
> On 19.04.2023 02:10, Justin Chen wrote:
>> Add support for the Broadcom ASP 2.0 Ethernet controller which is first
>> introduced with 72165. This controller features two distinct Ethernet
>> ports that can be independently operated.
>>
>> This patch supports:
[snip]
>> +	intf->tx_spb_index = spb_index;
>> +	intf->tx_spb_dma_valid = valid;
>> +	bcmasp_intf_tx_write(intf, intf->tx_spb_dma_valid);
>> +
>> +	if (tx_spb_ring_full(intf, MAX_SKB_FRAGS + 1))
>> +		netif_stop_queue(dev);
>> +
> 
> Here it may be better to use the new macros from include/net/netdev_queues.h.
> It seems your code (together with the related part in tx_poll) doesn't consider
> the queue restart case.
> In addition you should check whether using READ_ONCE()/WRITE_ONCE() is needed,
> e.g. in ring_full().

Thanks Heiner. Can you trim the parts you are not quoting otherwise one 
has to scroll all the way down to where you responded. Thanks!
-- 
Florian



More information about the dri-devel mailing list