On 08/31/2016 11:57 AM, Timur Tabi wrote:
> Timur Tabi wrote:
>>
>>> Seems that there are several unused members in the emac_stats struct:
>>>
>>>> +struct emac_stats {
>>> ...
>>> ...
>>> Both rx_bcast_byte_cnt and rx_mcast_byte_cnt are not used anywhere/
>>>> + u64 rx_bcast_byte_cnt; /* broadcast packets byte count
>>>> (without FCS) */
>>>> + u64 rx_mcast_byte_cnt; /* multicast packets byte count
>>>> (without FCS) */
>>> ...
>>> rx_err_addr is not used
>>>> + u64 rx_err_addr; /* packets dropped due to address
>>>> filtering */
>>
>> I'll go through the structure and remove the unused fields.
>
> It turns out I cannot actually strip out those "unused" fields. They
> are all indirectly used in emac_get_stats64:
>
> u64 *stats_itr = &adpt->stats.rx_ok;
>
> while (addr <= REG_MAC_RX_STATUS_END) {
> val = readl_relaxed(adpt->base + addr);
> *stats_itr += val;
> stats_itr++;
> addr += sizeof(u32);
> }
if these are truly 64-bits stats, how come you are using a single
readl_* to access them? Or is the u64 rx_err_addr just used as temporary
storage and aligned to the largest size you need to deal with?
--
Florian
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