Currently sgid_index is of type 'u8' so we can't really go beyond 128
unique GID entries(one for each type so total of 256 GID entries).
Change it to u16 so atleast 4k GID entries (as many VLANs that can be added)
can be accomodated.
Signed-off-by: Somnath Kotur <somnath.kotur@xxxxxxxxxxxx>
---
drivers/infiniband/core/verbs.c | 2 +-
include/rdma/ib_verbs.h | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 4792f52..3161e2c 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -549,7 +549,7 @@ int ib_init_ah_from_wc(struct ib_device *device, u8 port_num,
flow_class = be32_to_cpu(grh->version_tclass_flow);
rdma_ah_set_grh(ah_attr, &sgid,
flow_class & 0xFFFFF,
- (u8)gid_index, hoplimit,
+ (u16)gid_index, hoplimit,
(flow_class >> 20) & 0xFF);
}
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index ba8314e..30ce942 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -639,7 +639,7 @@ struct ib_event_handler {
struct ib_global_route {
union ib_gid dgid;
u32 flow_label;
- u8 sgid_index;
+ u16 sgid_index;
u8 hop_limit;
u8 traffic_class;
};
@@ -3612,7 +3612,7 @@ static inline void rdma_ah_set_interface_id(struct rdma_ah_attr *attr,
static inline void rdma_ah_set_grh(struct rdma_ah_attr *attr,
union ib_gid *dgid, u32 flow_label,
- u8 sgid_index, u8 hop_limit,
+ u16 sgid_index, u8 hop_limit,
u8 traffic_class)
{
struct ib_global_route *grh = rdma_ah_retrieve_grh(attr);
--
1.8.3.1
--
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