Commit 63a5f483 authored by Moni Shoua's avatar Moni Shoua Committed by Doug Ledford

IB/cma: Set default gid type to RoCEv2

RoCEv2 is the preferred RDMA protocol for Ethernet link layer because
of its advantages over RoCEv1. For better user experience make it the
default choice for RDMA_CM connections if device/port support it.
Signed-off-by: default avatarMoni Shoua <monis@mellanox.com>
Reviewed-by: default avatarMatan Barak <matanb@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 520eccdf
...@@ -72,6 +72,7 @@ MODULE_LICENSE("Dual BSD/GPL"); ...@@ -72,6 +72,7 @@ MODULE_LICENSE("Dual BSD/GPL");
#define CMA_MAX_CM_RETRIES 15 #define CMA_MAX_CM_RETRIES 15
#define CMA_CM_MRA_SETTING (IB_CM_MRA_FLAG_DELAY | 24) #define CMA_CM_MRA_SETTING (IB_CM_MRA_FLAG_DELAY | 24)
#define CMA_IBOE_PACKET_LIFETIME 18 #define CMA_IBOE_PACKET_LIFETIME 18
#define CMA_PREFERRED_ROCE_GID_TYPE IB_GID_TYPE_ROCE_UDP_ENCAP
static const char * const cma_events[] = { static const char * const cma_events[] = {
[RDMA_CM_EVENT_ADDR_RESOLVED] = "address resolved", [RDMA_CM_EVENT_ADDR_RESOLVED] = "address resolved",
...@@ -4280,8 +4281,12 @@ static void cma_add_one(struct ib_device *device) ...@@ -4280,8 +4281,12 @@ static void cma_add_one(struct ib_device *device)
for (i = rdma_start_port(device); i <= rdma_end_port(device); i++) { for (i = rdma_start_port(device); i <= rdma_end_port(device); i++) {
supported_gids = roce_gid_type_mask_support(device, i); supported_gids = roce_gid_type_mask_support(device, i);
WARN_ON(!supported_gids); WARN_ON(!supported_gids);
cma_dev->default_gid_type[i - rdma_start_port(device)] = if (supported_gids & CMA_PREFERRED_ROCE_GID_TYPE)
find_first_bit(&supported_gids, BITS_PER_LONG); cma_dev->default_gid_type[i - rdma_start_port(device)] =
CMA_PREFERRED_ROCE_GID_TYPE;
else
cma_dev->default_gid_type[i - rdma_start_port(device)] =
find_first_bit(&supported_gids, BITS_PER_LONG);
cma_dev->default_roce_tos[i - rdma_start_port(device)] = 0; cma_dev->default_roce_tos[i - rdma_start_port(device)] = 0;
} }
......
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