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authorParav Pandit <parav@mellanox.com>2018-01-18 10:11:17 +0200
committerJason Gunthorpe <jgg@mellanox.com>2018-01-19 13:05:38 -0700
commit7a2f64ee4a953c64474a46b10b3b89d55a92c55e (patch)
treeba93a977cacc86be04ef7c7de0e676905f7c2c79 /drivers/infiniband
parentRDMA/cma: Introduce API to read GIDs for multiple transports (diff)
downloadlinux-dev-7a2f64ee4a953c64474a46b10b3b89d55a92c55e.tar.xz
linux-dev-7a2f64ee4a953c64474a46b10b3b89d55a92c55e.zip
RDMA/ucma: Use rdma cm API to query GID
Make use of rdma_read_gids() API to read SGID and DGID which returns correct GIDs for RoCE and other transports. rdma_addr_get_dgid() for RoCE for client side connections returns MAC address, instead of DGID. rdma_addr_get_sgid() for RoCE doesn't return correct SGID for IPv6 and when more than one IP address is assigned to the netdevice. Therefore use transport agnostic rdma_read_gids() API provided by rdma_cm module. Signed-off-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/core/ucma.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 2ec0f89035fb..d67219db99be 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -944,8 +944,8 @@ static ssize_t ucma_query_gid(struct ucma_context *ctx,
} else {
addr->sib_family = AF_IB;
addr->sib_pkey = (__force __be16) resp.pkey;
- rdma_addr_get_sgid(&ctx->cm_id->route.addr.dev_addr,
- (union ib_gid *) &addr->sib_addr);
+ rdma_read_gids(ctx->cm_id, (union ib_gid *)&addr->sib_addr,
+ NULL);
addr->sib_sid = rdma_get_service_id(ctx->cm_id, (struct sockaddr *)
&ctx->cm_id->route.addr.src_addr);
}
@@ -957,8 +957,8 @@ static ssize_t ucma_query_gid(struct ucma_context *ctx,
} else {
addr->sib_family = AF_IB;
addr->sib_pkey = (__force __be16) resp.pkey;
- rdma_addr_get_dgid(&ctx->cm_id->route.addr.dev_addr,
- (union ib_gid *) &addr->sib_addr);
+ rdma_read_gids(ctx->cm_id, NULL,
+ (union ib_gid *)&addr->sib_addr);
addr->sib_sid = rdma_get_service_id(ctx->cm_id, (struct sockaddr *)
&ctx->cm_id->route.addr.dst_addr);
}