From: Parav Pandit <parav@mellanox.com>
Date: Sun, 1 Apr 2018 15:08:19 +0300
Subject: RDMA/providers: Simplify query_gid callback of RoCE providers
Patch-mainline: v4.17-rc1
Git-commit: 0e1f9b924471c132dcf314476916e3c4bd4956b2
References: bsc#1103992 FATE#326009
ib_query_gid() fetches the GID from the software cache maintained in
ib_core for RoCE ports.
Therefore, simplify the provider drivers for RoCE to treat query_gid()
callback as never called for RoCE, and only require non-RoCE devices to
implement it.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/core/device.c | 4 +++-
drivers/infiniband/hw/bnxt_re/main.c | 1 -
drivers/infiniband/hw/hns/hns_roce_main.c | 7 -------
drivers/infiniband/hw/mlx4/main.c | 17 +----------------
drivers/infiniband/hw/ocrdma/ocrdma_main.c | 1 -
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 18 ------------------
drivers/infiniband/hw/ocrdma/ocrdma_verbs.h | 2 --
drivers/infiniband/hw/qedr/main.c | 1 -
drivers/infiniband/hw/qedr/verbs.c | 21 ---------------------
drivers/infiniband/hw/qedr/verbs.h | 1 -
drivers/infiniband/sw/rxe/rxe_verbs.c | 18 ------------------
11 files changed, 4 insertions(+), 87 deletions(-)
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -103,7 +103,6 @@ static int ib_device_check_mandatory(str
IB_MANDATORY_FUNC(query_device),
IB_MANDATORY_FUNC(query_port),
IB_MANDATORY_FUNC(query_pkey),
- IB_MANDATORY_FUNC(query_gid),
IB_MANDATORY_FUNC(alloc_pd),
IB_MANDATORY_FUNC(dealloc_pd),
IB_MANDATORY_FUNC(create_ah),
@@ -883,6 +882,9 @@ int ib_query_gid(struct ib_device *devic
if (attr)
return -EINVAL;
+ if (!device->query_gid)
+ return -EOPNOTSUPP;
+
return device->query_gid(device, port_num, index, gid);
}
EXPORT_SYMBOL(ib_query_gid);
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -574,7 +574,6 @@ static int bnxt_re_register_ib(struct bn
ibdev->get_port_immutable = bnxt_re_get_port_immutable;
ibdev->get_dev_fw_str = bnxt_re_query_fw_str;
ibdev->query_pkey = bnxt_re_query_pkey;
- ibdev->query_gid = bnxt_re_query_gid;
ibdev->get_netdev = bnxt_re_get_netdev;
ibdev->add_gid = bnxt_re_add_gid;
ibdev->del_gid = bnxt_re_del_gid;
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -296,12 +296,6 @@ static enum rdma_link_layer hns_roce_get
return IB_LINK_LAYER_ETHERNET;
}
-static int hns_roce_query_gid(struct ib_device *ib_dev, u8 port_num, int index,
- union ib_gid *gid)
-{
- return 0;
-}
-
static int hns_roce_query_pkey(struct ib_device *ib_dev, u8 port, u16 index,
u16 *pkey)
{
@@ -482,7 +476,6 @@ static int hns_roce_register_device(stru
ib_dev->modify_port = hns_roce_modify_port;
ib_dev->get_link_layer = hns_roce_get_link_layer;
ib_dev->get_netdev = hns_roce_get_netdev;
- ib_dev->query_gid = hns_roce_query_gid;
ib_dev->add_gid = hns_roce_add_gid;
ib_dev->del_gid = hns_roce_del_gid;
ib_dev->query_pkey = hns_roce_query_pkey;
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -888,24 +888,9 @@ out:
static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
union ib_gid *gid)
{
- int ret;
-
if (rdma_protocol_ib(ibdev, port))
return __mlx4_ib_query_gid(ibdev, port, index, gid, 0);
-
- if (!rdma_protocol_roce(ibdev, port))
- return -ENODEV;
-
- if (!rdma_cap_roce_gid_table(ibdev, port))
- return -ENODEV;
-
- ret = ib_get_cached_gid(ibdev, port, index, gid, NULL);
- if (ret == -EAGAIN) {
- memcpy(gid, &zgid, sizeof(*gid));
- return 0;
- }
-
- return ret;
+ return 0;
}
static int mlx4_ib_query_sl2vl(struct ib_device *ibdev, u8 port, u64 *sl2vl_tbl)
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -158,7 +158,6 @@ static int ocrdma_register_device(struct
dev->ibdev.query_device = ocrdma_query_device;
dev->ibdev.query_port = ocrdma_query_port;
dev->ibdev.modify_port = ocrdma_modify_port;
- dev->ibdev.query_gid = ocrdma_query_gid;
dev->ibdev.get_netdev = ocrdma_get_netdev;
dev->ibdev.get_link_layer = ocrdma_link_layer;
dev->ibdev.alloc_pd = ocrdma_alloc_pd;
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -62,24 +62,6 @@ int ocrdma_query_pkey(struct ib_device *
return 0;
}
-int ocrdma_query_gid(struct ib_device *ibdev, u8 port,
- int index, union ib_gid *sgid)
-{
- int ret;
-
- memset(sgid, 0, sizeof(*sgid));
- if (index >= OCRDMA_MAX_SGID)
- return -EINVAL;
-
- ret = ib_get_cached_gid(ibdev, port, index, sgid, NULL);
- if (ret == -EAGAIN) {
- memcpy(sgid, &zgid, sizeof(*sgid));
- return 0;
- }
-
- return ret;
-}
-
int ocrdma_query_device(struct ib_device *ibdev, struct ib_device_attr *attr,
struct ib_udata *uhw)
{
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
@@ -61,8 +61,6 @@ enum rdma_protocol_type
ocrdma_query_protocol(struct ib_device *device, u8 port_num);
void ocrdma_get_guid(struct ocrdma_dev *, u8 *guid);
-int ocrdma_query_gid(struct ib_device *, u8 port,
- int index, union ib_gid *gid);
struct net_device *ocrdma_get_netdev(struct ib_device *device, u8 port_num);
int ocrdma_query_pkey(struct ib_device *, u8 port, u16 index, u16 *pkey);
--- a/drivers/infiniband/hw/qedr/main.c
+++ b/drivers/infiniband/hw/qedr/main.c
@@ -162,7 +162,6 @@ static int qedr_iw_register_device(struc
static void qedr_roce_register_device(struct qedr_dev *dev)
{
dev->ibdev.node_type = RDMA_NODE_IB_CA;
- dev->ibdev.query_gid = qedr_query_gid;
dev->ibdev.get_port_immutable = qedr_roce_port_immutable;
}
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -84,27 +84,6 @@ int qedr_iw_query_gid(struct ib_device *
return 0;
}
-int qedr_query_gid(struct ib_device *ibdev, u8 port, int index,
- union ib_gid *sgid)
-{
- struct qedr_dev *dev = get_qedr_dev(ibdev);
- int rc = 0;
-
- if (!rdma_cap_roce_gid_table(ibdev, port))
- return -ENODEV;
-
- rc = ib_get_cached_gid(ibdev, port, index, sgid, NULL);
- if (rc == -EAGAIN) {
- memcpy(sgid, &zgid, sizeof(*sgid));
- return 0;
- }
-
- DP_DEBUG(dev, QEDR_MSG_INIT, "query gid: index=%d %llx:%llx\n", index,
- sgid->global.interface_id, sgid->global.subnet_prefix);
-
- return rc;
-}
-
int qedr_query_device(struct ib_device *ibdev,
struct ib_device_attr *attr, struct ib_udata *udata)
{
--- a/drivers/infiniband/hw/qedr/verbs.h
+++ b/drivers/infiniband/hw/qedr/verbs.h
@@ -38,7 +38,6 @@ int qedr_query_port(struct ib_device *,
int qedr_modify_port(struct ib_device *, u8 port, int mask,
struct ib_port_modify *props);
-int qedr_query_gid(struct ib_device *, u8 port, int index, union ib_gid *gid);
int qedr_iw_query_gid(struct ib_device *ibdev, u8 port,
int index, union ib_gid *gid);
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
@@ -77,23 +77,6 @@ out:
return rc;
}
-static int rxe_query_gid(struct ib_device *device,
- u8 port_num, int index, union ib_gid *gid)
-{
- int ret;
-
- if (index > RXE_PORT_GID_TBL_LEN)
- return -EINVAL;
-
- ret = ib_get_cached_gid(device, port_num, index, gid, NULL);
- if (ret == -EAGAIN) {
- memcpy(gid, &zgid, sizeof(*gid));
- return 0;
- }
-
- return ret;
-}
-
static int rxe_add_gid(struct ib_device *device, u8 port_num, unsigned int
index, const union ib_gid *gid,
const struct ib_gid_attr *attr, void **context)
@@ -1285,7 +1268,6 @@ int rxe_register_device(struct rxe_dev *
dev->query_port = rxe_query_port;
dev->modify_port = rxe_modify_port;
dev->get_link_layer = rxe_get_link_layer;
- dev->query_gid = rxe_query_gid;
dev->get_netdev = rxe_get_netdev;
dev->add_gid = rxe_add_gid;
dev->del_gid = rxe_del_gid;