From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leon Romanovsky Subject: [PATCH rdma-next V2 24/27] RDMA/netink: Export lids and sm_lids Date: Mon, 3 Jul 2017 09:28:27 +0300 Message-ID: <20170703062830.30361-25-leon@kernel.org> References: <20170703062830.30361-1-leon@kernel.org> Cc: linux-rdma@vger.kernel.org, Stephen Hemminger , Ariel Almog , Linux Netdev , Leon Romanovsky To: Doug Ledford Return-path: Received: from mail.kernel.org ([198.145.29.99]:59704 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752564AbdGCG34 (ORCPT ); Mon, 3 Jul 2017 02:29:56 -0400 In-Reply-To: <20170703062830.30361-1-leon@kernel.org> Sender: netdev-owner@vger.kernel.org List-ID: From: Leon Romanovsky According to the IB specification, the LID and SM_LID are 16-bit wide, but to support OmniPath users, export it as 32-bit value from the beginning. Signed-off-by: Leon Romanovsky --- drivers/infiniband/core/nldev.c | 9 ++++++++- include/uapi/rdma/rdma_netlink.h | 8 ++++++++ 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index c4884841e2fe..ce733bf33ed9 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -45,6 +45,8 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = { [RDMA_NLDEV_ATTR_NODE_GUID] = { .type = NLA_U64 }, [RDMA_NLDEV_ATTR_SYS_IMAGE_GUID] = { .type = NLA_U64 }, [RDMA_NLDEV_ATTR_SUBNET_PREFIX] = { .type = NLA_U64 }, + [RDMA_NLDEV_ATTR_LID] = { .type = NLA_U32 }, + [RDMA_NLDEV_ATTR_SM_LID] = { .type = NLA_U32 }, }; static int fill_dev_info(struct sk_buff *msg, struct ib_device *device) @@ -102,7 +104,12 @@ static int fill_port_info(struct sk_buff *msg, nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_SUBNET_PREFIX, attr.subnet_prefix, 0)) return -EMSGSIZE; - + if (rdma_protocol_ib(device, port)) { + if (nla_put_u32(msg, RDMA_NLDEV_ATTR_LID, attr.lid)) + return -EMSGSIZE; + if (nla_put_u32(msg, RDMA_NLDEV_ATTR_SM_LID, attr.sm_lid)) + return -EMSGSIZE; + } return 0; } diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h index 24712d810dca..82e0d64346e1 100644 --- a/include/uapi/rdma/rdma_netlink.h +++ b/include/uapi/rdma/rdma_netlink.h @@ -284,6 +284,14 @@ enum rdma_nldev_attr { */ RDMA_NLDEV_ATTR_SUBNET_PREFIX, /* u64 */ + /* + * Local Identifier (LID), + * According to IB specification, It is 16-bit address assigned + * by the Subnet Manager. Extended to be 32-bit for OmniPath users. + */ + RDMA_NLDEV_ATTR_LID, /* u32 */ + RDMA_NLDEV_ATTR_SM_LID, /* u32 */ + RDMA_NLDEV_ATTR_MAX }; #endif /* _UAPI_RDMA_NETLINK_H */ -- 2.13.2