[dpdk-dev] [PATCH] mlx4: use dummy rxqs when a non-pow2 number is requested
Olivier Matz
olivier.matz at 6wind.com
Thu Mar 24 13:25:51 CET 2016
Hi Bruce,
On 03/24/2016 01:20 PM, Bruce Richardson wrote:
>> @@ -734,12 +734,12 @@ dev_configure(struct rte_eth_dev *dev)
>> }
>> if (rxqs_n == priv->rxqs_n)
>> return 0;
>> - if ((rxqs_n & (rxqs_n - 1)) != 0) {
>> - ERROR("%p: invalid number of RX queues (%u),"
>> - " must be a power of 2",
>> + if (!rte_is_power_of_2(rxqs_n)) {
>> + WARN("%p: number of RX queues (%u), must be a"
>> + " power of 2: remaining queues will be inactive",
>
> I'm not sure how clear this warning message is. To the reader there are no
> extra "remaining" queues referred to, as it's not stated that the driver is
> allocating extra queues. How about e.g.:
>
> WARN("%p: number of RX queues on device must by a power of 2. Allocating %u
> queues, of which %u will be active. Remaining queues will be inactive"...)
>
You're right, I'll send a v2 with a clearer message.
Regards,
Olivier
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