On Wed, Dec 23, 2015 at 3:40 PM, Leon Romanovsky <[email protected]> wrote:
> On Wed, Dec 23, 2015 at 02:56:47PM +0200, Matan Barak wrote:
>> In order to support multiple GID types, we need to store the gid_type
>> with each GID. This is also aligned with the RoCE v2 annex "RoCEv2 PORT
>> GID table entries shall have a "GID type" attribute that denotes the L3
>> Address type". The currently supported GID is IB_GID_TYPE_IB which is
>> also RoCE v1 GID type.
>>
>> This implies that gid_type should be added to roce_gid_table meta-data.
>>
>> Signed-off-by: Matan Barak <[email protected]>
>> ---
>> drivers/infiniband/core/cache.c | 144
>> +++++++++++++++++++---------
>> drivers/infiniband/core/cm.c | 2 +-
>> drivers/infiniband/core/cma.c | 3 +-
>> drivers/infiniband/core/core_priv.h | 4 +
>> drivers/infiniband/core/device.c | 9 ++-
>> drivers/infiniband/core/multicast.c | 2 +-
>> drivers/infiniband/core/roce_gid_mgmt.c | 60 ++++++++++--
>> drivers/infiniband/core/sa_query.c | 5 +-
>> drivers/infiniband/core/uverbs_marshall.c | 1 +
>> drivers/infiniband/core/verbs.c | 1 +
>> include/rdma/ib_cache.h | 4 +
>> include/rdma/ib_sa.h | 1 +
>> include/rdma/ib_verbs.h | 11 ++-
>> 13 files changed, 185 insertions(+), 62 deletions(-)
>>
>> diff --git a/drivers/infiniband/core/cache.c
>> b/drivers/infiniband/core/cache.c
>> index 097e9df..566fd8f 100644
>> --- a/drivers/infiniband/core/cache.c
>> +++ b/drivers/infiniband/core/cache.c
>> @@ -64,6 +64,7 @@ enum gid_attr_find_mask {
>> GID_ATTR_FIND_MASK_GID = 1UL << 0,
>> GID_ATTR_FIND_MASK_NETDEV = 1UL << 1,
>> GID_ATTR_FIND_MASK_DEFAULT = 1UL << 2,
>> + GID_ATTR_FIND_MASK_GID_TYPE = 1UL << 3,
>> };
>>
>> enum gid_table_entry_props {
>> @@ -125,6 +126,19 @@ static void dispatch_gid_change_event(struct ib_device
>> *ib_dev, u8 port)
>> }
>> }
>>
>> +static const char * const gid_type_str[] = {
> ^^ ^^
> IMHO, The white spaces can be a little bit confusing to understand.
>
Pay attention to the double const - I think it's more clear that way.
>> + [IB_GID_TYPE_IB] = "IB/RoCE v1",
>> +};
>> +
>> +const char *ib_cache_gid_type_str(enum ib_gid_type gid_type)
>> +{
>> + if (gid_type < ARRAY_SIZE(gid_type_str) && gid_type_str[gid_type])
> Why do you need to check second condition?
If we want to leave a gap for an invalid GID type, we could do that.
Anyway, we could remove this as an incremental future patch if that's
really important.
>> + return gid_type_str[gid_type];
>> +
>> + return "Invalid GID type";
>> +}
>> +EXPORT_SYMBOL(ib_cache_gid_type_str);
>> +
> --
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