From: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Date: Thu, 8 Jun 2017 13:37:47 -0400
Subject: IB/core: Change port_attr.lid size from 16 to 32 bits
Patch-mainline: v4.14-rc1
Git-commit: 582faf3150f57b8364ac9d2aa731d7368ada7a4b
References: bsc#1046306 FATE#322942
lid field in struct ib_port_attr is increased to 32 bits. This enables core
components to use larger LIDs if needed.
The user ABI is unchanged and return 16 bit values when queried.
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/core/core_priv.h | 1 +
drivers/infiniband/core/uverbs_cmd.c | 5 ++++-
drivers/infiniband/hw/mlx4/alias_GUID.c | 2 +-
drivers/infiniband/hw/mlx4/mad.c | 2 +-
drivers/infiniband/hw/mthca/mthca_mad.c | 2 +-
include/rdma/ib_verbs.h | 2 +-
include/rdma/opa_addr.h | 3 ++-
7 files changed, 11 insertions(+), 6 deletions(-)
--- a/drivers/infiniband/core/core_priv.h
+++ b/drivers/infiniband/core/core_priv.h
@@ -38,6 +38,7 @@
#include <linux/cgroup_rdma.h>
#include <rdma/ib_verbs.h>
+#include <rdma/opa_addr.h>
#include <rdma/ib_mad.h>
#include "mad_priv.h"
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -275,8 +275,11 @@ ssize_t ib_uverbs_query_port(struct ib_u
resp.bad_pkey_cntr = attr.bad_pkey_cntr;
resp.qkey_viol_cntr = attr.qkey_viol_cntr;
resp.pkey_tbl_len = attr.pkey_tbl_len;
- resp.lid = attr.lid;
resp.sm_lid = attr.sm_lid;
+ if (rdma_cap_opa_ah(ib_dev, cmd.port_num))
+ resp.lid = OPA_TO_IB_UCAST_LID(attr.lid);
+ else
+ resp.lid = (u16)attr.lid;
resp.lmc = attr.lmc;
resp.max_vl_num = attr.max_vl_num;
resp.sm_sl = attr.sm_sl;
--- a/drivers/infiniband/hw/mlx4/alias_GUID.c
+++ b/drivers/infiniband/hw/mlx4/alias_GUID.c
@@ -528,7 +528,7 @@ static int set_guid_rec(struct ib_device
memset(&guid_info_rec, 0, sizeof (struct ib_sa_guidinfo_rec));
- guid_info_rec.lid = cpu_to_be16(attr.lid);
+ guid_info_rec.lid = cpu_to_be16((u16)attr.lid);
guid_info_rec.block_num = index;
memcpy(guid_info_rec.guid_info_list, rec_det->all_recs,
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -860,7 +860,7 @@ static int ib_process_mad(struct ib_devi
in_mad->mad_hdr.method == IB_MGMT_METHOD_SET &&
in_mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO &&
!ib_query_port(ibdev, port_num, &pattr))
- prev_lid = pattr.lid;
+ prev_lid = (u16)pattr.lid;
err = mlx4_MAD_IFC(to_mdev(ibdev),
(mad_flags & IB_MAD_IGNORE_MKEY ? MLX4_MAD_IFC_IGNORE_MKEY : 0) |
--- a/drivers/infiniband/hw/mthca/mthca_mad.c
+++ b/drivers/infiniband/hw/mthca/mthca_mad.c
@@ -256,7 +256,7 @@ int mthca_process_mad(struct ib_device *
in_mad->mad_hdr.method == IB_MGMT_METHOD_SET &&
in_mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO &&
!ib_query_port(ibdev, port_num, &pattr))
- prev_lid = pattr.lid;
+ prev_lid = (u16)pattr.lid;
err = mthca_MAD_IFC(to_mdev(ibdev),
mad_flags & IB_MAD_IGNORE_MKEY,
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -549,8 +549,8 @@ struct ib_port_attr {
u32 bad_pkey_cntr;
u32 qkey_viol_cntr;
u16 pkey_tbl_len;
- u16 lid;
u16 sm_lid;
+ u32 lid;
u8 lmc;
u8 max_vl_num;
u8 sm_sl;
--- a/include/rdma/opa_addr.h
+++ b/include/rdma/opa_addr.h
@@ -50,7 +50,8 @@
#define OPA_SPECIAL_OUI (0x00066AULL)
#define OPA_MAKE_ID(x) (cpu_to_be64(OPA_SPECIAL_OUI << 40 | (x)))
-
+#define OPA_TO_IB_UCAST_LID(x) (((x) >= be16_to_cpu(IB_MULTICAST_LID_BASE)) \
+ ? 0 : x)
/**
* ib_is_opa_gid: Returns true if the top 24 bits of the gid
* contains the OPA_STL_OUI identifier. This identifies that