Re: [dpdk-dev] [PATCH 01/30] net/sfc: log port ID as 16-bit unsigned integer on panic

[Andrew Rybchenko <arybchenko@solarflare.com>]

Hi Ferruh,

On 2/8/19 1:13 PM, Ferruh Yigit wrote:
> On 2/7/2019 12:17 PM, Andrew Rybchenko wrote:
>> From: Ivan Malov <ivan.malov@oktetlabs.ru>
>>
>> Fixes: f8244c6399d9 ("ethdev: increase port id range")
>> Cc: stable@dpdk.org
>>
>> Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
>> Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
>> ---
>>   drivers/net/sfc/sfc_debug.h | 3 ++-
>>   1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/sfc/sfc_debug.h b/drivers/net/sfc/sfc_debug.h
>> index 6b600ff4d..62f3937e8 100644
>> --- a/drivers/net/sfc/sfc_debug.h
>> +++ b/drivers/net/sfc/sfc_debug.h
>> @@ -27,7 +27,8 @@
>>   	do {								\
>>   		const struct sfc_adapter *_sa = (sa);			\
>>   									\
>> -		rte_panic("sfc " PCI_PRI_FMT " #%" PRIu8 ": " fmt "\n",	\
>> +		rte_panic("sfc " PCI_PRI_FMT				\
>> +			  " #%" PRIu16 ": " fmt "\n",			\
>>   			  _sa->pci_addr.domain, _sa->pci_addr.bus,	\
>>   			  _sa->pci_addr.devid, _sa->pci_addr.function,	\
>>   			  _sa->port_id, ##args);			\
>>
> Overall it may not be good idea to call rte_panic() from driver. rte_panic()
> cause the DPDK application to terminate, if a driver fails application may
> prefer to handle that error and continue to run, so terminate decision should be
> from application not library.
>
> Can you please double check if rte_panic() usages in the driver can be converted
> to error reporting?

Thanks a lot for reminder. We use it in few places, but even those can be
improved. We'll do it.

Andrew.