IB/core: Add more fields to IPv6 flow specification

Add the following fields to IPv6 flow filter specification:
1. Traffic Class
2. Flow Label
3. Next Header
4. Hop Limit

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index b9fb256c25fa..cb3f515a2285 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -3158,6 +3158,10 @@ static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec *kern_spec,
                 ib_spec->size = sizeof(struct ib_flow_spec_ipv6);
                 memcpy(&ib_spec->ipv6.val, kern_spec_val, actual_filter_sz);
                 memcpy(&ib_spec->ipv6.mask, kern_spec_mask, actual_filter_sz);
+
+                if ((ntohl(ib_spec->ipv6.mask.flow_label)) >= BIT(20) ||
+                    (ntohl(ib_spec->ipv6.val.flow_label)) >= BIT(20))
+                        return -EINVAL;
                 break;
         case IB_FLOW_SPEC_TCP:
         case IB_FLOW_SPEC_UDP: