From: Artemy Kovalyov <artemyko@mellanox.com>
Date: Thu, 17 Aug 2017 15:52:08 +0300
Subject: IB/uverbs: Expose XRQ capabilities
Patch-mainline: v4.14-rc1
Git-commit: 8d50505ada728258fcdce99120b937ce68298c4e
References: bsc#1046306 FATE#322942
Make XRQ capabilities available via ibv_query_device() verb.
Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Reviewed-by: Yossi Itigin <yosefe@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/core/uverbs_cmd.c | 10 ++++++++++
include/uapi/rdma/ib_user_verbs.h | 15 +++++++++++++++
2 files changed, 25 insertions(+)
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -3868,6 +3868,16 @@ int ib_uverbs_ex_query_device(struct ib_
resp.raw_packet_caps = attr.raw_packet_caps;
resp.response_length += sizeof(resp.raw_packet_caps);
+
+ if (ucore->outlen < resp.response_length + sizeof(resp.xrq_caps))
+ goto end;
+
+ resp.xrq_caps.max_rndv_hdr_size = attr.xrq_caps.max_rndv_hdr_size;
+ resp.xrq_caps.max_num_tags = attr.xrq_caps.max_num_tags;
+ resp.xrq_caps.max_ops = attr.xrq_caps.max_ops;
+ resp.xrq_caps.max_sge = attr.xrq_caps.max_sge;
+ resp.xrq_caps.flags = attr.xrq_caps.flags;
+ resp.response_length += sizeof(resp.xrq_caps);
end:
err = ib_copy_to_udata(ucore, &resp, resp.response_length);
return err;
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -236,6 +236,20 @@ struct ib_uverbs_rss_caps {
__u32 reserved;
};
+struct ib_uverbs_tm_caps {
+ /* Max size of rendezvous request message */
+ __u32 max_rndv_hdr_size;
+ /* Max number of entries in tag matching list */
+ __u32 max_num_tags;
+ /* TM flags */
+ __u32 flags;
+ /* Max number of outstanding list operations */
+ __u32 max_ops;
+ /* Max number of SGE in tag matching entry */
+ __u32 max_sge;
+ __u32 reserved;
+};
+
struct ib_uverbs_ex_query_device_resp {
struct ib_uverbs_query_device_resp base;
__u32 comp_mask;
@@ -247,6 +261,7 @@ struct ib_uverbs_ex_query_device_resp {
struct ib_uverbs_rss_caps rss_caps;
__u32 max_wq_type_rq;
__u32 raw_packet_caps;
+ struct ib_uverbs_tm_caps xrq_caps;
};
struct ib_uverbs_query_port {