> On 9 May 2021, at 09:47, Leon Romanovsky <leon@xxxxxxxxxx> wrote:
>
> On Thu, May 06, 2021 at 10:31:44AM +0200, Håkon Bugge wrote:
>> Both the PKEY and GID tables in an HCA can hold in the order of
>> hundreds entries. Reading them are expensive. Partly because the API
>> for retrieving them only returns a single entry at a time. Further, on
>> certain implementations, e.g., CX-3, the VFs are paravirtualized in
>> this respect and have to rely on the PF driver to perform the
>> read. This again demands VF to PF communication.
>>
>> IB Core's cache is refreshed on all events. Hence, filter the refresh
>> of the PKEY and GID caches based on the event received being
>> IB_EVENT_PKEY_CHANGE and IB_EVENT_GID_CHANGE respectively.
>>
>> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
>> Signed-off-by: Håkon Bugge <haakon.bugge@xxxxxxxxxx>
>>
>> ---
>>
>> v1 -> v2:
>> * Changed signature of ib_cache_update() as per Leon's suggestion
>> * Added Fixes tag as per Zhu Yanjun' suggestion
>> ---
>> drivers/infiniband/core/cache.c | 23 +++++++++++++++--------
>> 1 file changed, 15 insertions(+), 8 deletions(-)
>>
>
> Thanks,
> Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxx>
I saw a handful commits being applied for-next. Anything needed from my side here?
Thxs, Håkon
