RDMA: Move uverbs_abi_ver into struct ib_device_ops

No reason for every driver to emit code to set this, just make it part of
the driver's existing static const ops structure.
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>
Reviewed-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/core/device.c

@@ -2323,6 +2323,8 @@ void ib_set_device_ops(struct ib_device *dev, const struct ib_device_ops *ops)
 			dev_ops->driver_id != ops->driver_id);
 		dev_ops->driver_id = ops->driver_id;
 	}
+	if (ops->uverbs_abi_ver)
+		dev_ops->uverbs_abi_ver = ops->uverbs_abi_ver;
 
 	SET_DEVICE_OP(dev_ops, add_gid);
 	SET_DEVICE_OP(dev_ops, advise_mr);

drivers/infiniband/core/uverbs_main.c

@@ -1186,7 +1186,7 @@ static ssize_t abi_version_show(struct device *device,
 	srcu_key = srcu_read_lock(&dev->disassociate_srcu);
 	ib_dev = srcu_dereference(dev->ib_dev, &dev->disassociate_srcu);
 	if (ib_dev)
-		ret = sprintf(buf, "%d\n", ib_dev->uverbs_abi_ver);
+		ret = sprintf(buf, "%u\n", ib_dev->ops.uverbs_abi_ver);
 	srcu_read_unlock(&dev->disassociate_srcu, srcu_key);
 
 	return ret;

drivers/infiniband/hw/bnxt_re/ib_verbs.c

@@ -3630,10 +3630,10 @@ int bnxt_re_alloc_ucontext(struct ib_ucontext *ctx, struct ib_udata *udata)
 	u32 chip_met_rev_num = 0;
 	int rc;
 
-	dev_dbg(rdev_to_dev(rdev), "ABI version requested %d",
-		ibdev->uverbs_abi_ver);
+	dev_dbg(rdev_to_dev(rdev), "ABI version requested %u",
+		ibdev->ops.uverbs_abi_ver);
 
-	if (ibdev->uverbs_abi_ver != BNXT_RE_ABI_VERSION) {
+	if (ibdev->ops.uverbs_abi_ver != BNXT_RE_ABI_VERSION) {
 		dev_dbg(rdev_to_dev(rdev), " is different from the device %d ",
 			BNXT_RE_ABI_VERSION);
 		return -EPERM;

drivers/infiniband/hw/bnxt_re/main.c

@@ -597,6 +597,7 @@ static void bnxt_re_unregister_ib(struct bnxt_re_dev *rdev)
 
 static const struct ib_device_ops bnxt_re_dev_ops = {
 	.driver_id = RDMA_DRIVER_BNXT_RE,
+	.uverbs_abi_ver = BNXT_RE_ABI_VERSION,
 
 	.add_gid = bnxt_re_add_gid,
 	.alloc_hw_stats = bnxt_re_ib_alloc_hw_stats,
@@ -663,7 +664,6 @@ static int bnxt_re_register_ib(struct bnxt_re_dev *rdev)
 	ibdev->local_dma_lkey = BNXT_QPLIB_RSVD_LKEY;
 
 	/* User space */
-	ibdev->uverbs_abi_ver = BNXT_RE_ABI_VERSION;
 	ibdev->uverbs_cmd_mask =
 			(1ull << IB_USER_VERBS_CMD_GET_CONTEXT)		|
 			(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE)	|

drivers/infiniband/hw/cxgb3/iwch_provider.c

@@ -1237,6 +1237,7 @@ static void get_dev_fw_ver_str(struct ib_device *ibdev, char *str)
 
 static const struct ib_device_ops iwch_dev_ops = {
 	.driver_id = RDMA_DRIVER_CXGB3,
+	.uverbs_abi_ver = IWCH_UVERBS_ABI_VERSION,
 
 	.alloc_hw_stats	= iwch_alloc_stats,
 	.alloc_mr = iwch_alloc_mr,
@@ -1316,7 +1317,6 @@ int iwch_register_device(struct iwch_dev *dev)
 	dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports;
 	dev->ibdev.num_comp_vectors = 1;
 	dev->ibdev.dev.parent = &dev->rdev.rnic_info.pdev->dev;
-	dev->ibdev.uverbs_abi_ver = IWCH_UVERBS_ABI_VERSION;
 
 	memcpy(dev->ibdev.iw_ifname, dev->rdev.t3cdev_p->lldev->name,
 	       sizeof(dev->ibdev.iw_ifname));

drivers/infiniband/hw/cxgb4/provider.c

@@ -490,6 +490,7 @@ static int fill_res_entry(struct sk_buff *msg, struct rdma_restrack_entry *res)
 
 static const struct ib_device_ops c4iw_dev_ops = {
 	.driver_id = RDMA_DRIVER_CXGB4,
+	.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION,
 
 	.alloc_hw_stats = c4iw_alloc_stats,
 	.alloc_mr = c4iw_alloc_mr,
@@ -595,7 +596,6 @@ void c4iw_register_device(struct work_struct *work)
 	dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports;
 	dev->ibdev.num_comp_vectors =  dev->rdev.lldi.nciq;
 	dev->ibdev.dev.parent = &dev->rdev.lldi.pdev->dev;
-	dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION;
 
 	memcpy(dev->ibdev.iw_ifname, dev->rdev.lldi.ports[0]->name,
 	       sizeof(dev->ibdev.iw_ifname));

drivers/infiniband/hw/efa/efa_main.c

@@ -198,6 +198,7 @@ static void efa_stats_init(struct efa_dev *dev)
 
 static const struct ib_device_ops efa_dev_ops = {
 	.driver_id = RDMA_DRIVER_EFA,
+	.uverbs_abi_ver = EFA_UVERBS_ABI_VERSION,
 
 	.alloc_pd = efa_alloc_pd,
 	.alloc_ucontext = efa_alloc_ucontext,
@@ -266,7 +267,6 @@ static int efa_ib_device_add(struct efa_dev *dev)
 	dev->ibdev.phys_port_cnt = 1;
 	dev->ibdev.num_comp_vectors = 1;
 	dev->ibdev.dev.parent = &pdev->dev;
-	dev->ibdev.uverbs_abi_ver = EFA_UVERBS_ABI_VERSION;
 
 	dev->ibdev.uverbs_cmd_mask =
 		(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |

drivers/infiniband/hw/hns/hns_roce_main.c

@@ -415,6 +415,7 @@ static void hns_roce_unregister_device(struct hns_roce_dev *hr_dev)
 
 static const struct ib_device_ops hns_roce_dev_ops = {
 	.driver_id = RDMA_DRIVER_HNS,
+	.uverbs_abi_ver = 1,
 
 	.add_gid = hns_roce_add_gid,
 	.alloc_pd = hns_roce_alloc_pd,
@@ -489,7 +490,6 @@ static int hns_roce_register_device(struct hns_roce_dev *hr_dev)
 	ib_dev->phys_port_cnt		= hr_dev->caps.num_ports;
 	ib_dev->local_dma_lkey		= hr_dev->caps.reserved_lkey;
 	ib_dev->num_comp_vectors	= hr_dev->caps.num_comp_vectors;
-	ib_dev->uverbs_abi_ver		= 1;
 	ib_dev->uverbs_cmd_mask		=
 		(1ULL << IB_USER_VERBS_CMD_GET_CONTEXT) |
 		(1ULL << IB_USER_VERBS_CMD_QUERY_DEVICE) |

drivers/infiniband/hw/i40iw/i40iw_verbs.c

@@ -2651,6 +2651,8 @@ static int i40iw_query_pkey(struct ib_device *ibdev,
 
 static const struct ib_device_ops i40iw_dev_ops = {
 	.driver_id = RDMA_DRIVER_I40IW,
+	/* NOTE: Older kernels wrongly use 0 for the uverbs_abi_ver */
+	.uverbs_abi_ver = I40IW_ABI_VER,
 
 	.alloc_hw_stats = i40iw_alloc_hw_stats,
 	.alloc_mr = i40iw_alloc_mr,

drivers/infiniband/hw/mlx4/main.c

@@ -1089,7 +1089,8 @@ static int mlx4_ib_alloc_ucontext(struct ib_ucontext *uctx,
 	if (!dev->ib_active)
 		return -EAGAIN;
 
-	if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) {
+	if (ibdev->ops.uverbs_abi_ver ==
+	    MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) {
 		resp_v3.qp_tab_size      = dev->dev->caps.num_qps;
 		resp_v3.bf_reg_size      = dev->dev->caps.bf_reg_size;
 		resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
@@ -1111,7 +1112,7 @@ static int mlx4_ib_alloc_ucontext(struct ib_ucontext *uctx,
 	INIT_LIST_HEAD(&context->wqn_ranges_list);
 	mutex_init(&context->wqn_ranges_mutex);
 
-	if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION)
+	if (ibdev->ops.uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION)
 		err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3));
 	else
 		err = ib_copy_to_udata(udata, &resp, sizeof(resp));
@@ -2510,6 +2511,7 @@ static void get_fw_ver_str(struct ib_device *device, char *str)
 
 static const struct ib_device_ops mlx4_ib_dev_ops = {
 	.driver_id = RDMA_DRIVER_MLX4,
+	.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION,
 
 	.add_gid = mlx4_ib_add_gid,
 	.alloc_mr = mlx4_ib_alloc_mr,
@@ -2653,11 +2655,6 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
 	ibdev->ib_dev.num_comp_vectors	= dev->caps.num_comp_vectors;
 	ibdev->ib_dev.dev.parent	= &dev->persist->pdev->dev;
 
-	if (dev->caps.userspace_caps)
-		ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
-	else
-		ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION;
-
 	ibdev->ib_dev.uverbs_cmd_mask	=
 		(1ull << IB_USER_VERBS_CMD_GET_CONTEXT)		|
 		(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE)	|
@@ -2731,6 +2728,10 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
 		ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_fs_ops);
 	}
 
+	if (!dev->caps.userspace_caps)
+		ibdev->ib_dev.ops.uverbs_abi_ver =
+			MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION;
+
 	mlx4_ib_alloc_eqs(dev, ibdev);
 
 	spin_lock_init(&iboe->lock);

drivers/infiniband/hw/mlx5/main.c

@@ -6125,6 +6125,7 @@ static void mlx5_ib_stage_flow_db_cleanup(struct mlx5_ib_dev *dev)
 
 static const struct ib_device_ops mlx5_ib_dev_ops = {
 	.driver_id = RDMA_DRIVER_MLX5,
+	.uverbs_abi_ver	= MLX5_IB_UVERBS_ABI_VERSION,
 
 	.add_gid = mlx5_ib_add_gid,
 	.alloc_mr = mlx5_ib_alloc_mr,
@@ -6223,7 +6224,6 @@ static int mlx5_ib_stage_caps_init(struct mlx5_ib_dev *dev)
 	struct mlx5_core_dev *mdev = dev->mdev;
 	int err;
 
-	dev->ib_dev.uverbs_abi_ver	= MLX5_IB_UVERBS_ABI_VERSION;
 	dev->ib_dev.uverbs_cmd_mask	=
 		(1ull << IB_USER_VERBS_CMD_GET_CONTEXT)		|
 		(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE)	|

drivers/infiniband/hw/mthca/mthca_provider.c

@@ -1154,6 +1154,7 @@ static void get_dev_fw_str(struct ib_device *device, char *str)
 
 static const struct ib_device_ops mthca_dev_ops = {
 	.driver_id = RDMA_DRIVER_MTHCA,
+	.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION,
 
 	.alloc_pd = mthca_alloc_pd,
 	.alloc_ucontext = mthca_alloc_ucontext,
@@ -1247,7 +1248,6 @@ int mthca_register_device(struct mthca_dev *dev)
 
 	dev->ib_dev.owner                = THIS_MODULE;
 
-	dev->ib_dev.uverbs_abi_ver	 = MTHCA_UVERBS_ABI_VERSION;
 	dev->ib_dev.uverbs_cmd_mask	 =
 		(1ull << IB_USER_VERBS_CMD_GET_CONTEXT)		|
 		(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE)	|

drivers/infiniband/hw/nes/nes_verbs.c

@@ -3559,6 +3559,8 @@ static void get_dev_fw_str(struct ib_device *dev, char *str)
 
 static const struct ib_device_ops nes_dev_ops = {
 	.driver_id = RDMA_DRIVER_NES,
+	/* NOTE: Older kernels wrongly use 0 for the uverbs_abi_ver */
+	.uverbs_abi_ver = NES_ABI_USERSPACE_VER,
 
 	.alloc_mr = nes_alloc_mr,
 	.alloc_mw = nes_alloc_mw,

drivers/infiniband/hw/ocrdma/ocrdma_main.c

@@ -145,6 +145,7 @@ static const struct attribute_group ocrdma_attr_group = {
 
 static const struct ib_device_ops ocrdma_dev_ops = {
 	.driver_id = RDMA_DRIVER_OCRDMA,
+	.uverbs_abi_ver = OCRDMA_ABI_VERSION,
 
 	.alloc_mr = ocrdma_alloc_mr,
 	.alloc_pd = ocrdma_alloc_pd,
@@ -203,7 +204,6 @@ static int ocrdma_register_device(struct ocrdma_dev *dev)
 	memcpy(dev->ibdev.node_desc, OCRDMA_NODE_DESC,
 	       sizeof(OCRDMA_NODE_DESC));
 	dev->ibdev.owner = THIS_MODULE;
-	dev->ibdev.uverbs_abi_ver = OCRDMA_ABI_VERSION;
 	dev->ibdev.uverbs_cmd_mask =
 	    OCRDMA_UVERBS(GET_CONTEXT) |
 	    OCRDMA_UVERBS(QUERY_DEVICE) |

drivers/infiniband/hw/qedr/main.c

@@ -184,6 +184,7 @@ static void qedr_roce_register_device(struct qedr_dev *dev)
 
 static const struct ib_device_ops qedr_dev_ops = {
 	.driver_id = RDMA_DRIVER_QEDR,
+	.uverbs_abi_ver = QEDR_ABI_VERSION,
 
 	.alloc_mr = qedr_alloc_mr,
 	.alloc_pd = qedr_alloc_pd,
@@ -234,7 +235,6 @@ static int qedr_register_device(struct qedr_dev *dev)
 	dev->ibdev.node_guid = dev->attr.node_guid;
 	memcpy(dev->ibdev.node_desc, QEDR_NODE_DESC, sizeof(QEDR_NODE_DESC));
 	dev->ibdev.owner = THIS_MODULE;
-	dev->ibdev.uverbs_abi_ver = QEDR_ABI_VERSION;
 
 	dev->ibdev.uverbs_cmd_mask = QEDR_UVERBS(GET_CONTEXT) |
 				     QEDR_UVERBS(QUERY_DEVICE) |

drivers/infiniband/hw/usnic/usnic_ib_main.c

@@ -330,6 +330,7 @@ static void usnic_get_dev_fw_str(struct ib_device *device, char *str)
 
 static const struct ib_device_ops usnic_dev_ops = {
 	.driver_id = RDMA_DRIVER_USNIC,
+	.uverbs_abi_ver = USNIC_UVERBS_ABI_VERSION,
 
 	.alloc_pd = usnic_ib_alloc_pd,
 	.alloc_ucontext = usnic_ib_alloc_ucontext,
@@ -391,7 +392,6 @@ static void *usnic_ib_device_add(struct pci_dev *dev)
 	us_ibdev->ib_dev.phys_port_cnt = USNIC_IB_PORT_CNT;
 	us_ibdev->ib_dev.num_comp_vectors = USNIC_IB_NUM_COMP_VECTORS;
 	us_ibdev->ib_dev.dev.parent = &dev->dev;
-	us_ibdev->ib_dev.uverbs_abi_ver = USNIC_UVERBS_ABI_VERSION;
 
 	us_ibdev->ib_dev.uverbs_cmd_mask =
 		(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |

drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c

@@ -145,6 +145,7 @@ static int pvrdma_port_immutable(struct ib_device *ibdev, u8 port_num,
 
 static const struct ib_device_ops pvrdma_dev_ops = {
 	.driver_id = RDMA_DRIVER_VMW_PVRDMA,
+	.uverbs_abi_ver = PVRDMA_UVERBS_ABI_VERSION,
 
 	.add_gid = pvrdma_add_gid,
 	.alloc_mr = pvrdma_alloc_mr,
@@ -203,7 +204,6 @@ static int pvrdma_register_device(struct pvrdma_dev *dev)
 	dev->ib_dev.owner = THIS_MODULE;
 	dev->ib_dev.num_comp_vectors = 1;
 	dev->ib_dev.dev.parent = &dev->pdev->dev;
-	dev->ib_dev.uverbs_abi_ver = PVRDMA_UVERBS_ABI_VERSION;
 	dev->ib_dev.uverbs_cmd_mask =
 		(1ull << IB_USER_VERBS_CMD_GET_CONTEXT)		|
 		(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE)	|

drivers/infiniband/sw/rdmavt/vt.c

@@ -382,6 +382,8 @@ enum {
 };
 
 static const struct ib_device_ops rvt_dev_ops = {
+	.uverbs_abi_ver = RVT_UVERBS_ABI_VERSION,
+
 	.alloc_fmr = rvt_alloc_fmr,
 	.alloc_mr = rvt_alloc_mr,
 	.alloc_pd = rvt_alloc_pd,
@@ -600,7 +602,6 @@ int rvt_register_device(struct rvt_dev_info *rdi)
 	 * exactly which functions rdmavt supports, nor do they know the ABI
 	 * version, so we do all of this sort of stuff here.
 	 */
-	rdi->ibdev.uverbs_abi_ver = RVT_UVERBS_ABI_VERSION;
 	rdi->ibdev.uverbs_cmd_mask =
 		(1ull << IB_USER_VERBS_CMD_GET_CONTEXT)         |
 		(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE)        |

drivers/infiniband/sw/rxe/rxe_verbs.c

@@ -1112,6 +1112,7 @@ static int rxe_enable_driver(struct ib_device *ib_dev)
 
 static const struct ib_device_ops rxe_dev_ops = {
 	.driver_id = RDMA_DRIVER_RXE,
+	.uverbs_abi_ver = RXE_UVERBS_ABI_VERSION,
 
 	.alloc_hw_stats = rxe_ib_alloc_hw_stats,
 	.alloc_mr = rxe_alloc_mr,
@@ -1184,7 +1185,6 @@ int rxe_register_device(struct rxe_dev *rxe, const char *ibdev_name)
 	dma_coerce_mask_and_coherent(&dev->dev,
 				     dma_get_required_mask(&dev->dev));
 
-	dev->uverbs_abi_ver = RXE_UVERBS_ABI_VERSION;
 	dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT)
 	    | BIT_ULL(IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL)
 	    | BIT_ULL(IB_USER_VERBS_CMD_QUERY_DEVICE)

include/rdma/ib_verbs.h

@@ -2330,6 +2330,7 @@ struct iw_cm_conn_param;
  */
 struct ib_device_ops {
 	enum rdma_driver_id driver_id;
+	u32 uverbs_abi_ver;
 
 	int (*post_send)(struct ib_qp *qp, const struct ib_send_wr *send_wr,
 			 const struct ib_send_wr **bad_send_wr);
@@ -2650,7 +2651,6 @@ struct ib_device {
 	 */
 	const struct attribute_group	*groups[3];
 
-	int			     uverbs_abi_ver;
 	u64			     uverbs_cmd_mask;
 	u64			     uverbs_ex_cmd_mask;