diff options
Diffstat (limited to 'drivers/infiniband/core')
40 files changed, 2695 insertions, 1861 deletions
diff --git a/drivers/infiniband/core/Makefile b/drivers/infiniband/core/Makefile index 867cee5e27b2..69dee36e0e89 100644 --- a/drivers/infiniband/core/Makefile +++ b/drivers/infiniband/core/Makefile @@ -38,4 +38,4 @@ ib_uverbs-y := uverbs_main.o uverbs_cmd.o uverbs_marshall.o \ uverbs_std_types_cq.o \ uverbs_std_types_flow_action.o uverbs_std_types_dm.o \ uverbs_std_types_mr.o uverbs_std_types_counters.o \ - uverbs_uapi.o + uverbs_uapi.o uverbs_std_types_device.o diff --git a/drivers/infiniband/core/agent.c b/drivers/infiniband/core/agent.c index 324ef85a13b6..f82b4260de42 100644 --- a/drivers/infiniband/core/agent.c +++ b/drivers/infiniband/core/agent.c @@ -137,13 +137,13 @@ void agent_send_response(const struct ib_mad_hdr *mad_hdr, const struct ib_grh * err2: ib_free_send_mad(send_buf); err1: - rdma_destroy_ah(ah); + rdma_destroy_ah(ah, RDMA_DESTROY_AH_SLEEPABLE); } static void agent_send_handler(struct ib_mad_agent *mad_agent, struct ib_mad_send_wc *mad_send_wc) { - rdma_destroy_ah(mad_send_wc->send_buf->ah); + rdma_destroy_ah(mad_send_wc->send_buf->ah, RDMA_DESTROY_AH_SLEEPABLE); ib_free_send_mad(mad_send_wc->send_buf); } diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index 5b2fce4a7091..7b04590f307f 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -215,10 +215,6 @@ static void free_gid_entry_locked(struct ib_gid_table_entry *entry) dev_dbg(&device->dev, "%s port=%d index=%d gid %pI6\n", __func__, port_num, entry->attr.index, entry->attr.gid.raw); - if (rdma_cap_roce_gid_table(device, port_num) && - entry->state != GID_TABLE_ENTRY_INVALID) - device->del_gid(&entry->attr, &entry->context); - write_lock_irq(&table->rwlock); /* @@ -324,7 +320,7 @@ static int add_roce_gid(struct ib_gid_table_entry *entry) return -EINVAL; } if (rdma_cap_roce_gid_table(attr->device, attr->port_num)) { - ret = attr->device->add_gid(attr, &entry->context); + ret = attr->device->ops.add_gid(attr, &entry->context); if (ret) { dev_err(&attr->device->dev, "%s GID add failed port=%d index=%d\n", @@ -364,6 +360,9 @@ static void del_gid(struct ib_device *ib_dev, u8 port, table->data_vec[ix] = NULL; write_unlock_irq(&table->rwlock); + if (rdma_cap_roce_gid_table(ib_dev, port)) + ib_dev->ops.del_gid(&entry->attr, &entry->context); + put_gid_entry_locked(entry); } @@ -548,8 +547,8 @@ int ib_cache_gid_add(struct ib_device *ib_dev, u8 port, unsigned long mask; int ret; - if (ib_dev->get_netdev) { - idev = ib_dev->get_netdev(ib_dev, port); + if (ib_dev->ops.get_netdev) { + idev = ib_dev->ops.get_netdev(ib_dev, port); if (idev && attr->ndev != idev) { union ib_gid default_gid; @@ -1296,9 +1295,9 @@ static int config_non_roce_gid_cache(struct ib_device *device, mutex_lock(&table->lock); for (i = 0; i < gid_tbl_len; ++i) { - if (!device->query_gid) + if (!device->ops.query_gid) continue; - ret = device->query_gid(device, port, i, &gid_attr.gid); + ret = device->ops.query_gid(device, port, i, &gid_attr.gid); if (ret) { dev_warn(&device->dev, "query_gid failed (%d) for index %d\n", ret, diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index edb2cb758be7..37980c7564c0 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -343,7 +343,7 @@ static int cm_alloc_msg(struct cm_id_private *cm_id_priv, ret = -ENODEV; goto out; } - ah = rdma_create_ah(mad_agent->qp->pd, &av->ah_attr); + ah = rdma_create_ah(mad_agent->qp->pd, &av->ah_attr, 0); if (IS_ERR(ah)) { ret = PTR_ERR(ah); goto out; @@ -355,7 +355,7 @@ static int cm_alloc_msg(struct cm_id_private *cm_id_priv, GFP_ATOMIC, IB_MGMT_BASE_VERSION); if (IS_ERR(m)) { - rdma_destroy_ah(ah); + rdma_destroy_ah(ah, 0); ret = PTR_ERR(m); goto out; } @@ -400,7 +400,7 @@ static int cm_create_response_msg_ah(struct cm_port *port, static void cm_free_msg(struct ib_mad_send_buf *msg) { if (msg->ah) - rdma_destroy_ah(msg->ah); + rdma_destroy_ah(msg->ah, 0); if (msg->context[0]) cm_deref_id(msg->context[0]); ib_free_send_mad(msg); diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 15d5bb7bf6bb..63a7cc00bae0 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -494,7 +494,7 @@ static void _cma_attach_to_dev(struct rdma_id_private *id_priv, id_priv->id.route.addr.dev_addr.transport = rdma_node_get_transport(cma_dev->device->node_type); list_add_tail(&id_priv->list, &cma_dev->id_list); - rdma_restrack_add(&id_priv->res); + rdma_restrack_kadd(&id_priv->res); } static void cma_attach_to_dev(struct rdma_id_private *id_priv, diff --git a/drivers/infiniband/core/cma_configfs.c b/drivers/infiniband/core/cma_configfs.c index 8c2dfb3e294e..3ec2c415bb70 100644 --- a/drivers/infiniband/core/cma_configfs.c +++ b/drivers/infiniband/core/cma_configfs.c @@ -33,7 +33,10 @@ #include <linux/module.h> #include <linux/configfs.h> #include <rdma/ib_verbs.h> +#include <rdma/rdma_cm.h> + #include "core_priv.h" +#include "cma_priv.h" struct cma_device; diff --git a/drivers/infiniband/core/cma_priv.h b/drivers/infiniband/core/cma_priv.h index 194cfe78c447..cf47c69436a7 100644 --- a/drivers/infiniband/core/cma_priv.h +++ b/drivers/infiniband/core/cma_priv.h @@ -94,4 +94,32 @@ struct rdma_id_private { */ struct rdma_restrack_entry res; }; + +#if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS) +int cma_configfs_init(void); +void cma_configfs_exit(void); +#else +static inline int cma_configfs_init(void) +{ + return 0; +} + +static inline void cma_configfs_exit(void) +{ +} +#endif + +void cma_ref_dev(struct cma_device *dev); +void cma_deref_dev(struct cma_device *dev); +typedef bool (*cma_device_filter)(struct ib_device *, void *); +struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter, + void *cookie); +int cma_get_default_gid_type(struct cma_device *dev, unsigned int port); +int cma_set_default_gid_type(struct cma_device *dev, unsigned int port, + enum ib_gid_type default_gid_type); +int cma_get_default_roce_tos(struct cma_device *dev, unsigned int port); +int cma_set_default_roce_tos(struct cma_device *dev, unsigned int port, + u8 default_roce_tos); +struct ib_device *cma_get_ib_dev(struct cma_device *dev); + #endif /* _CMA_PRIV_H */ diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h index bb9007a0cca7..3cd830d52967 100644 --- a/drivers/infiniband/core/core_priv.h +++ b/drivers/infiniband/core/core_priv.h @@ -54,35 +54,6 @@ struct pkey_index_qp_list { struct list_head qp_list; }; -#if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS) -int cma_configfs_init(void); -void cma_configfs_exit(void); -#else -static inline int cma_configfs_init(void) -{ - return 0; -} - -static inline void cma_configfs_exit(void) -{ -} -#endif -struct cma_device; -void cma_ref_dev(struct cma_device *cma_dev); -void cma_deref_dev(struct cma_device *cma_dev); -typedef bool (*cma_device_filter)(struct ib_device *, void *); -struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter, - void *cookie); -int cma_get_default_gid_type(struct cma_device *cma_dev, - unsigned int port); -int cma_set_default_gid_type(struct cma_device *cma_dev, - unsigned int port, - enum ib_gid_type default_gid_type); -int cma_get_default_roce_tos(struct cma_device *cma_dev, unsigned int port); -int cma_set_default_roce_tos(struct cma_device *a_dev, unsigned int port, - u8 default_roce_tos); -struct ib_device *cma_get_ib_dev(struct cma_device *cma_dev); - int ib_device_register_sysfs(struct ib_device *device, int (*port_callback)(struct ib_device *, u8, struct kobject *)); @@ -244,10 +215,10 @@ static inline int ib_security_modify_qp(struct ib_qp *qp, int qp_attr_mask, struct ib_udata *udata) { - return qp->device->modify_qp(qp->real_qp, - qp_attr, - qp_attr_mask, - udata); + return qp->device->ops.modify_qp(qp->real_qp, + qp_attr, + qp_attr_mask, + udata); } static inline int ib_create_qp_security(struct ib_qp *qp, @@ -296,6 +267,7 @@ static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map, #endif struct ib_device *ib_device_get_by_index(u32 ifindex); +void ib_device_put(struct ib_device *device); /* RDMA device netlink */ void nldev_init(void); void nldev_exit(void); @@ -308,10 +280,10 @@ static inline struct ib_qp *_ib_create_qp(struct ib_device *dev, { struct ib_qp *qp; - if (!dev->create_qp) + if (!dev->ops.create_qp) return ERR_PTR(-EOPNOTSUPP); - qp = dev->create_qp(pd, attr, udata); + qp = dev->ops.create_qp(pd, attr, udata); if (IS_ERR(qp)) return qp; @@ -325,7 +297,10 @@ static inline struct ib_qp *_ib_create_qp(struct ib_device *dev, */ if (attr->qp_type < IB_QPT_XRC_INI) { qp->res.type = RDMA_RESTRACK_QP; - rdma_restrack_add(&qp->res); + if (uobj) + rdma_restrack_uadd(&qp->res); + else + rdma_restrack_kadd(&qp->res); } else qp->res.valid = false; diff --git a/drivers/infiniband/core/cq.c b/drivers/infiniband/core/cq.c index b1e5365ddafa..d61e5e1427c2 100644 --- a/drivers/infiniband/core/cq.c +++ b/drivers/infiniband/core/cq.c @@ -145,7 +145,7 @@ struct ib_cq *__ib_alloc_cq(struct ib_device *dev, void *private, struct ib_cq *cq; int ret = -ENOMEM; - cq = dev->create_cq(dev, &cq_attr, NULL, NULL); + cq = dev->ops.create_cq(dev, &cq_attr, NULL, NULL); if (IS_ERR(cq)) return cq; @@ -162,7 +162,7 @@ struct ib_cq *__ib_alloc_cq(struct ib_device *dev, void *private, cq->res.type = RDMA_RESTRACK_CQ; rdma_restrack_set_task(&cq->res, caller); - rdma_restrack_add(&cq->res); + rdma_restrack_kadd(&cq->res); switch (cq->poll_ctx) { case IB_POLL_DIRECT: @@ -193,7 +193,7 @@ out_free_wc: kfree(cq->wc); rdma_restrack_del(&cq->res); out_destroy_cq: - cq->device->destroy_cq(cq); + cq->device->ops.destroy_cq(cq); return ERR_PTR(ret); } EXPORT_SYMBOL(__ib_alloc_cq); @@ -225,7 +225,7 @@ void ib_free_cq(struct ib_cq *cq) kfree(cq->wc); rdma_restrack_del(&cq->res); - ret = cq->device->destroy_cq(cq); + ret = cq->device->ops.destroy_cq(cq); WARN_ON_ONCE(ret); } EXPORT_SYMBOL(ib_free_cq); diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 87eb4f2cdd7d..47ab34ee1a9d 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -96,7 +96,7 @@ static struct notifier_block ibdev_lsm_nb = { static int ib_device_check_mandatory(struct ib_device *device) { -#define IB_MANDATORY_FUNC(x) { offsetof(struct ib_device, x), #x } +#define IB_MANDATORY_FUNC(x) { offsetof(struct ib_device_ops, x), #x } static const struct { size_t offset; char *name; @@ -122,7 +122,8 @@ static int ib_device_check_mandatory(struct ib_device *device) int i; for (i = 0; i < ARRAY_SIZE(mandatory_table); ++i) { - if (!*(void **) ((void *) device + mandatory_table[i].offset)) { + if (!*(void **) ((void *) &device->ops + + mandatory_table[i].offset)) { dev_warn(&device->dev, "Device is missing mandatory function %s\n", mandatory_table[i].name); @@ -145,7 +146,8 @@ static struct ib_device *__ib_device_get_by_index(u32 index) } /* - * Caller is responsible to return refrerence count by calling put_device() + * Caller must perform ib_device_put() to return the device reference count + * when ib_device_get_by_index() returns valid device pointer. */ struct ib_device *ib_device_get_by_index(u32 index) { @@ -153,13 +155,21 @@ struct ib_device *ib_device_get_by_index(u32 index) down_read(&lists_rwsem); device = __ib_device_get_by_index(index); - if (device) - get_device(&device->dev); - + if (device) { + /* Do not return a device if unregistration has started. */ + if (!refcount_inc_not_zero(&device->refcount)) + device = NULL; + } up_read(&lists_rwsem); return device; } +void ib_device_put(struct ib_device *device) +{ + if (refcount_dec_and_test(&device->refcount)) + complete(&device->unreg_completion); +} + static struct ib_device *__ib_device_get_by_name(const char *name) { struct ib_device *device; @@ -293,6 +303,8 @@ struct ib_device *ib_alloc_device(size_t size) rwlock_init(&device->client_data_lock); INIT_LIST_HEAD(&device->client_data_list); INIT_LIST_HEAD(&device->port_list); + refcount_set(&device->refcount, 1); + init_completion(&device->unreg_completion); return device; } @@ -362,8 +374,8 @@ static int read_port_immutable(struct ib_device *device) return -ENOMEM; for (port = start_port; port <= end_port; ++port) { - ret = device->get_port_immutable(device, port, - &device->port_immutable[port]); + ret = device->ops.get_port_immutable( + device, port, &device->port_immutable[port]); if (ret) return ret; @@ -375,8 +387,8 @@ static int read_port_immutable(struct ib_device *device) void ib_get_device_fw_str(struct ib_device *dev, char *str) { - if (dev->get_dev_fw_str) - dev->get_dev_fw_str(dev, str); + if (dev->ops.get_dev_fw_str) + dev->ops.get_dev_fw_str(dev, str); else str[0] = '\0'; } @@ -525,7 +537,7 @@ static int setup_device(struct ib_device *device) } memset(&device->attrs, 0, sizeof(device->attrs)); - ret = device->query_device(device, &device->attrs, &uhw); + ret = device->ops.query_device(device, &device->attrs, &uhw); if (ret) { dev_warn(&device->dev, "Couldn't query the device attributes\n"); @@ -641,6 +653,13 @@ void ib_unregister_device(struct ib_device *device) struct ib_client_data *context, *tmp; unsigned long flags; + /* + * Wait for all netlink command callers to finish working on the + * device. + */ + ib_device_put(device); + wait_for_completion(&device->unreg_completion); + mutex_lock(&device_mutex); down_write(&lists_rwsem); @@ -905,14 +924,14 @@ int ib_query_port(struct ib_device *device, return -EINVAL; memset(port_attr, 0, sizeof(*port_attr)); - err = device->query_port(device, port_num, port_attr); + err = device->ops.query_port(device, port_num, port_attr); if (err || port_attr->subnet_prefix) return err; if (rdma_port_get_link_layer(device, port_num) != IB_LINK_LAYER_INFINIBAND) return 0; - err = device->query_gid(device, port_num, 0, &gid); + err = device->ops.query_gid(device, port_num, 0, &gid); if (err) return err; @@ -946,8 +965,8 @@ void ib_enum_roce_netdev(struct ib_device *ib_dev, if (rdma_protocol_roce(ib_dev, port)) { struct net_device *idev = NULL; - if (ib_dev->get_netdev) - idev = ib_dev->get_netdev(ib_dev, port); + if (ib_dev->ops.get_netdev) + idev = ib_dev->ops.get_netdev(ib_dev, port); if (idev && idev->reg_state >= NETREG_UNREGISTERED) { @@ -1024,7 +1043,10 @@ int ib_enum_all_devs(nldev_callback nldev_cb, struct sk_buff *skb, int ib_query_pkey(struct ib_device *device, u8 port_num, u16 index, u16 *pkey) { - return device->query_pkey(device, port_num, index, pkey); + if (!rdma_is_port_valid(device, port_num)) + return -EINVAL; + + return device->ops.query_pkey(device, port_num, index, pkey); } EXPORT_SYMBOL(ib_query_pkey); @@ -1041,11 +1063,11 @@ int ib_modify_device(struct ib_device *device, int device_modify_mask, struct ib_device_modify *device_modify) { - if (!device->modify_device) + if (!device->ops.modify_device) return -ENOSYS; - return device->modify_device(device, device_modify_mask, - device_modify); + return device->ops.modify_device(device, device_modify_mask, + device_modify); } EXPORT_SYMBOL(ib_modify_device); @@ -1069,9 +1091,10 @@ int ib_modify_port(struct ib_device *device, if (!rdma_is_port_valid(device, port_num)) return -EINVAL; - if (device->modify_port) - rc = device->modify_port(device, port_num, port_modify_mask, - port_modify); + if (device->ops.modify_port) + rc = device->ops.modify_port(device, port_num, + port_modify_mask, + port_modify); else rc = rdma_protocol_roce(device, port_num) ? 0 : -ENOSYS; return rc; @@ -1198,6 +1221,105 @@ struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, } EXPORT_SYMBOL(ib_get_net_dev_by_params); +void ib_set_device_ops(struct ib_device *dev, const struct ib_device_ops *ops) +{ + struct ib_device_ops *dev_ops = &dev->ops; +#define SET_DEVICE_OP(ptr, name) \ + do { \ + if (ops->name) \ + if (!((ptr)->name)) \ + (ptr)->name = ops->name; \ + } while (0) + + SET_DEVICE_OP(dev_ops, add_gid); + SET_DEVICE_OP(dev_ops, alloc_dm); + SET_DEVICE_OP(dev_ops, alloc_fmr); + SET_DEVICE_OP(dev_ops, alloc_hw_stats); + SET_DEVICE_OP(dev_ops, alloc_mr); + SET_DEVICE_OP(dev_ops, alloc_mw); + SET_DEVICE_OP(dev_ops, alloc_pd); + SET_DEVICE_OP(dev_ops, alloc_rdma_netdev); + SET_DEVICE_OP(dev_ops, alloc_ucontext); + SET_DEVICE_OP(dev_ops, alloc_xrcd); + SET_DEVICE_OP(dev_ops, attach_mcast); + SET_DEVICE_OP(dev_ops, check_mr_status); + SET_DEVICE_OP(dev_ops, create_ah); + SET_DEVICE_OP(dev_ops, create_counters); + SET_DEVICE_OP(dev_ops, create_cq); + SET_DEVICE_OP(dev_ops, create_flow); + SET_DEVICE_OP(dev_ops, create_flow_action_esp); + SET_DEVICE_OP(dev_ops, create_qp); + SET_DEVICE_OP(dev_ops, create_rwq_ind_table); + SET_DEVICE_OP(dev_ops, create_srq); + SET_DEVICE_OP(dev_ops, create_wq); + SET_DEVICE_OP(dev_ops, dealloc_dm); + SET_DEVICE_OP(dev_ops, dealloc_fmr); + SET_DEVICE_OP(dev_ops, dealloc_mw); + SET_DEVICE_OP(dev_ops, dealloc_pd); + SET_DEVICE_OP(dev_ops, dealloc_ucontext); + SET_DEVICE_OP(dev_ops, dealloc_xrcd); + SET_DEVICE_OP(dev_ops, del_gid); + SET_DEVICE_OP(dev_ops, dereg_mr); + SET_DEVICE_OP(dev_ops, destroy_ah); + SET_DEVICE_OP(dev_ops, destroy_counters); + SET_DEVICE_OP(dev_ops, destroy_cq); + SET_DEVICE_OP(dev_ops, destroy_flow); + SET_DEVICE_OP(dev_ops, destroy_flow_action); + SET_DEVICE_OP(dev_ops, destroy_qp); + SET_DEVICE_OP(dev_ops, destroy_rwq_ind_table); + SET_DEVICE_OP(dev_ops, destroy_srq); + SET_DEVICE_OP(dev_ops, destroy_wq); + SET_DEVICE_OP(dev_ops, detach_mcast); + SET_DEVICE_OP(dev_ops, disassociate_ucontext); + SET_DEVICE_OP(dev_ops, drain_rq); + SET_DEVICE_OP(dev_ops, drain_sq); + SET_DEVICE_OP(dev_ops, get_dev_fw_str); + SET_DEVICE_OP(dev_ops, get_dma_mr); + SET_DEVICE_OP(dev_ops, get_hw_stats); + SET_DEVICE_OP(dev_ops, get_link_layer); + SET_DEVICE_OP(dev_ops, get_netdev); + SET_DEVICE_OP(dev_ops, get_port_immutable); + SET_DEVICE_OP(dev_ops, get_vector_affinity); + SET_DEVICE_OP(dev_ops, get_vf_config); + SET_DEVICE_OP(dev_ops, get_vf_stats); + SET_DEVICE_OP(dev_ops, map_mr_sg); + SET_DEVICE_OP(dev_ops, map_phys_fmr); + SET_DEVICE_OP(dev_ops, mmap); + SET_DEVICE_OP(dev_ops, modify_ah); + SET_DEVICE_OP(dev_ops, modify_cq); + SET_DEVICE_OP(dev_ops, modify_device); + SET_DEVICE_OP(dev_ops, modify_flow_action_esp); + SET_DEVICE_OP(dev_ops, modify_port); + SET_DEVICE_OP(dev_ops, modify_qp); + SET_DEVICE_OP(dev_ops, modify_srq); + SET_DEVICE_OP(dev_ops, modify_wq); + SET_DEVICE_OP(dev_ops, peek_cq); + SET_DEVICE_OP(dev_ops, poll_cq); + SET_DEVICE_OP(dev_ops, post_recv); + SET_DEVICE_OP(dev_ops, post_send); + SET_DEVICE_OP(dev_ops, post_srq_recv); + SET_DEVICE_OP(dev_ops, process_mad); + SET_DEVICE_OP(dev_ops, query_ah); + SET_DEVICE_OP(dev_ops, query_device); + SET_DEVICE_OP(dev_ops, query_gid); + SET_DEVICE_OP(dev_ops, query_pkey); + SET_DEVICE_OP(dev_ops, query_port); + SET_DEVICE_OP(dev_ops, query_qp); + SET_DEVICE_OP(dev_ops, query_srq); + SET_DEVICE_OP(dev_ops, rdma_netdev_get_params); + SET_DEVICE_OP(dev_ops, read_counters); + SET_DEVICE_OP(dev_ops, reg_dm_mr); + SET_DEVICE_OP(dev_ops, reg_user_mr); + SET_DEVICE_OP(dev_ops, req_ncomp_notif); + SET_DEVICE_OP(dev_ops, req_notify_cq); + SET_DEVICE_OP(dev_ops, rereg_user_mr); + SET_DEVICE_OP(dev_ops, resize_cq); + SET_DEVICE_OP(dev_ops, set_vf_guid); + SET_DEVICE_OP(dev_ops, set_vf_link_state); + SET_DEVICE_OP(dev_ops, unmap_fmr); +} +EXPORT_SYMBOL(ib_set_device_ops); + static const struct rdma_nl_cbs ibnl_ls_cb_table[RDMA_NL_LS_NUM_OPS] = { [RDMA_NL_LS_OP_RESOLVE] = { .doit = ib_nl_handle_resolve_resp, diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c index 83ba0068e8bb..7d841b689a1e 100644 --- a/drivers/infiniband/core/fmr_pool.c +++ b/drivers/infiniband/core/fmr_pool.c @@ -211,8 +211,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd, return ERR_PTR(-EINVAL); device = pd->device; - if (!device->alloc_fmr || !device->dealloc_fmr || - !device->map_phys_fmr || !device->unmap_fmr) { + if (!device->ops.alloc_fmr || !device->ops.dealloc_fmr || + !device->ops.map_phys_fmr || !device->ops.unmap_fmr) { dev_info(&device->dev, "Device does not support FMRs\n"); return ERR_PTR(-ENOSYS); } @@ -474,7 +474,7 @@ EXPORT_SYMBOL(ib_fmr_pool_map_phys); * Unmap an FMR. The FMR mapping may remain valid until the FMR is * reused (or until ib_flush_fmr_pool() is called). */ -int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr) +void ib_fmr_pool_unmap(struct ib_pool_fmr *fmr) { struct ib_fmr_pool *pool; unsigned long flags; @@ -503,7 +503,5 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr) #endif spin_unlock_irqrestore(&pool->pool_lock, flags); - - return 0; } EXPORT_SYMBOL(ib_fmr_pool_unmap); diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c index ba668d49c751..476abc74178e 100644 --- a/drivers/infiniband/core/iwcm.c +++ b/drivers/infiniband/core/iwcm.c @@ -502,17 +502,21 @@ static void iw_cm_check_wildcard(struct sockaddr_storage *pm_addr, */ static int iw_cm_map(struct iw_cm_id *cm_id, bool active) { + const char *devname = dev_name(&cm_id->device->dev); + const char *ifname = cm_id->device->iwcm->ifname; struct iwpm_dev_data pm_reg_msg; struct iwpm_sa_data pm_msg; int status; + if (strlen(devname) >= sizeof(pm_reg_msg.dev_name) || + strlen(ifname) >= sizeof(pm_reg_msg.if_name)) + return -EINVAL; + cm_id->m_local_addr = cm_id->local_addr; cm_id->m_remote_addr = cm_id->remote_addr; - memcpy(pm_reg_msg.dev_name, dev_name(&cm_id->device->dev), - sizeof(pm_reg_msg.dev_name)); - memcpy(pm_reg_msg.if_name, cm_id->device->iwcm->ifname, - sizeof(pm_reg_msg.if_name)); + strncpy(pm_reg_msg.dev_name, devname, sizeof(pm_reg_msg.dev_name)); + strncpy(pm_reg_msg.if_name, ifname, sizeof(pm_reg_msg.if_name)); if (iwpm_register_pid(&pm_reg_msg, RDMA_NL_IWCM) || !iwpm_valid_pid()) diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index d7025cd5be28..7870823bac47 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -888,10 +888,10 @@ static int handle_outgoing_dr_smp(struct ib_mad_agent_private *mad_agent_priv, } /* No GRH for DR SMP */ - ret = device->process_mad(device, 0, port_num, &mad_wc, NULL, - (const struct ib_mad_hdr *)smp, mad_size, - (struct ib_mad_hdr *)mad_priv->mad, - &mad_size, &out_mad_pkey_index); + ret = device->ops.process_mad(device, 0, port_num, &mad_wc, NULL, + (const struct ib_mad_hdr *)smp, mad_size, + (struct ib_mad_hdr *)mad_priv->mad, + &mad_size, &out_mad_pkey_index); switch (ret) { case IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY: @@ -2305,14 +2305,12 @@ static void ib_mad_recv_done(struct ib_cq *cq, struct ib_wc *wc) } /* Give driver "right of first refusal" on incoming MAD */ - if (port_priv->device->process_mad) { - ret = port_priv->device->process_mad(port_priv->device, 0, - port_priv->port_num, - wc, &recv->grh, - (const struct ib_mad_hdr *)recv->mad, - recv->mad_size, - (struct ib_mad_hdr *)response->mad, - &mad_size, &resp_mad_pkey_index); + if (port_priv->device->ops.process_mad) { + ret = port_priv->device->ops.process_mad( + port_priv->device, 0, port_priv->port_num, wc, + &recv->grh, (const struct ib_mad_hdr *)recv->mad, + recv->mad_size, (struct ib_mad_hdr *)response->mad, + &mad_size, &resp_mad_pkey_index); if (opa) wc->pkey_index = resp_mad_pkey_index; diff --git a/drivers/infiniband/core/mad_rmpp.c b/drivers/infiniband/core/mad_rmpp.c index e5cf09c66fe6..5ec57abc0849 100644 --- a/drivers/infiniband/core/mad_rmpp.c +++ b/drivers/infiniband/core/mad_rmpp.c @@ -81,7 +81,7 @@ static void destroy_rmpp_recv(struct mad_rmpp_recv *rmpp_recv) { deref_rmpp_recv(rmpp_recv); wait_for_completion(&rmpp_recv->comp); - rdma_destroy_ah(rmpp_recv->ah); + rdma_destroy_ah(rmpp_recv->ah, RDMA_DESTROY_AH_SLEEPABLE); kfree(rmpp_recv); } @@ -171,7 +171,7 @@ static struct ib_mad_send_buf *alloc_response_msg(struct ib_mad_agent *agent, hdr_len, 0, GFP_KERNEL, IB_MGMT_BASE_VERSION); if (IS_ERR(msg)) - rdma_destroy_ah(ah); + rdma_destroy_ah(ah, RDMA_DESTROY_AH_SLEEPABLE); else { msg->ah = ah; msg->context[0] = ah; @@ -201,7 +201,7 @@ static void ack_ds_ack(struct ib_mad_agent_private *agent, ret = ib_post_send_mad(msg, NULL); if (ret) { - rdma_destroy_ah(msg->ah); + rdma_destroy_ah(msg->ah, RDMA_DESTROY_AH_SLEEPABLE); ib_free_send_mad(msg); } } @@ -209,7 +209,8 @@ static void ack_ds_ack(struct ib_mad_agent_private *agent, void ib_rmpp_send_handler(struct ib_mad_send_wc *mad_send_wc) { if (mad_send_wc->send_buf->context[0] == mad_send_wc->send_buf->ah) - rdma_destroy_ah(mad_send_wc->send_buf->ah); + rdma_destroy_ah(mad_send_wc->send_buf->ah, + RDMA_DESTROY_AH_SLEEPABLE); ib_free_send_mad(mad_send_wc->send_buf); } @@ -237,7 +238,7 @@ static void nack_recv(struct ib_mad_agent_private *agent, ret = ib_post_send_mad(msg, NULL); if (ret) { - rdma_destroy_ah(msg->ah); + rdma_destroy_ah(msg->ah, RDMA_DESTROY_AH_SLEEPABLE); ib_free_send_mad(msg); } } diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 573399e3ccc1..e600fc23ae62 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -227,6 +227,7 @@ static int fill_port_info(struct sk_buff *msg, struct net_device *netdev = NULL; struct ib_port_attr attr; int ret; + u64 cap_flags = 0; if (fill_nldev_handle(msg, device)) return -EMSGSIZE; @@ -239,10 +240,12 @@ static int fill_port_info(struct sk_buff *msg, return ret; if (rdma_protocol_ib(device, port)) { - BUILD_BUG_ON(sizeof(attr.port_cap_flags) > sizeof(u64)); + BUILD_BUG_ON((sizeof(attr.port_cap_flags) + + sizeof(attr.port_cap_flags2)) > sizeof(u64)); + cap_flags = attr.port_cap_flags | + ((u64)attr.port_cap_flags2 << 32); if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_CAP_FLAGS, - (u64)attr.port_cap_flags, - RDMA_NLDEV_ATTR_PAD)) + cap_flags, RDMA_NLDEV_ATTR_PAD)) return -EMSGSIZE; if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_SUBNET_PREFIX, attr.subnet_prefix, RDMA_NLDEV_ATTR_PAD)) @@ -259,8 +262,8 @@ static int fill_port_info(struct sk_buff *msg, if (nla_put_u8(msg, RDMA_NLDEV_ATTR_PORT_PHYS_STATE, attr.phys_state)) return -EMSGSIZE; - if (device->get_netdev) - netdev = device->get_netdev(device, port); + if (device->ops.get_netdev) + netdev = device->ops.get_netdev(device, port); if (netdev && net_eq(dev_net(netdev), net)) { ret = nla_put_u32(msg, @@ -308,6 +311,7 @@ static int fill_res_info(struct sk_buff *msg, struct ib_device *device) [RDMA_RESTRACK_QP] = "qp", [RDMA_RESTRACK_CM_ID] = "cm_id", [RDMA_RESTRACK_MR] = "mr", + [RDMA_RESTRACK_CTX] = "ctx", }; struct rdma_restrack_root *res = &device->res; @@ -636,13 +640,13 @@ static int nldev_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, nlmsg_end(msg, nlh); - put_device(&device->dev); + ib_device_put(device); return rdma_nl_unicast(msg, NETLINK_CB(skb).portid); err_free: nlmsg_free(msg); err: - put_device(&device->dev); + ib_device_put(device); return err; } @@ -672,7 +676,7 @@ static int nldev_set_doit(struct sk_buff *skb, struct nlmsghdr *nlh, err = ib_device_rename(device, name); } - put_device(&device->dev); + ib_device_put(device); return err; } @@ -756,14 +760,14 @@ static int nldev_port_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, goto err_free; nlmsg_end(msg, nlh); - put_device(&device->dev); + ib_device_put(device); return rdma_nl_unicast(msg, NETLINK_CB(skb).portid); err_free: nlmsg_free(msg); err: - put_device(&device->dev); + ib_device_put(device); return err; } @@ -820,7 +824,7 @@ static int nldev_port_get_dumpit(struct sk_buff *skb, } out: - put_device(&device->dev); + ib_device_put(device); cb->args[0] = idx; return skb->len; } @@ -859,13 +863,13 @@ static int nldev_res_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, goto err_free; nlmsg_end(msg, nlh); - put_device(&device->dev); + ib_device_put(device); return rdma_nl_unicast(msg, NETLINK_CB(skb).portid); err_free: nlmsg_free(msg); err: - put_device(&device->dev); + ib_device_put(device); return ret; } @@ -1058,7 +1062,7 @@ next: idx++; if (!filled) goto err; - put_device(&device->dev); + ib_device_put(device); return skb->len; res_err: @@ -1069,7 +1073,7 @@ err: nlmsg_cancel(skb, nlh); err_index: - put_device(&device->dev); + ib_device_put(device); return ret; } diff --git a/drivers/infiniband/core/opa_smi.h b/drivers/infiniband/core/opa_smi.h index 3bfab3505a29..af4879bdf3d6 100644 --- a/drivers/infiniband/core/opa_smi.h +++ b/drivers/infiniband/core/opa_smi.h @@ -55,7 +55,7 @@ static inline enum smi_action opa_smi_check_local_smp(struct opa_smp *smp, { /* C14-9:3 -- We're at the end of the DR segment of path */ /* C14-9:4 -- Hop Pointer = Hop Count + 1 -> give to SMA/SM */ - return (device->process_mad && + return (device->ops.process_mad && !opa_get_smp_direction(smp) && (smp->hop_ptr == smp->hop_cnt + 1)) ? IB_SMI_HANDLE : IB_SMI_DISCARD; @@ -70,7 +70,7 @@ static inline enum smi_action opa_smi_check_local_returning_smp(struct opa_smp * { /* C14-13:3 -- We're at the end of the DR segment of path */ /* C14-13:4 -- Hop Pointer == 0 -> give to SM */ - return (device->process_mad && + return (device->ops.process_mad && opa_get_smp_direction(smp) && !smp->hop_ptr) ? IB_SMI_HANDLE : IB_SMI_DISCARD; } diff --git a/drivers/infiniband/core/rdma_core.c b/drivers/infiniband/core/rdma_core.c index 752a55c6bdce..6c4747e61d2b 100644 --- a/drivers/infiniband/core/rdma_core.c +++ b/drivers/infiniband/core/rdma_core.c @@ -224,12 +224,14 @@ out_unlock: * uverbs_put_destroy. */ struct ib_uobject *__uobj_get_destroy(const struct uverbs_api_object *obj, - u32 id, struct ib_uverbs_file *ufile) + u32 id, + const struct uverbs_attr_bundle *attrs) { struct ib_uobject *uobj; int ret; - uobj = rdma_lookup_get_uobject(obj, ufile, id, UVERBS_LOOKUP_DESTROY); + uobj = rdma_lookup_get_uobject(obj, attrs->ufile, id, + UVERBS_LOOKUP_DESTROY); if (IS_ERR(uobj)) return uobj; @@ -243,21 +245,20 @@ struct ib_uobject *__uobj_get_destroy(const struct uverbs_api_object *obj, } /* - * Does both uobj_get_destroy() and uobj_put_destroy(). Returns success_res - * on success (negative errno on failure). For use by callers that do not need - * the uobj. + * Does both uobj_get_destroy() and uobj_put_destroy(). Returns 0 on success + * (negative errno on failure). For use by callers that do not need the uobj. */ int __uobj_perform_destroy(const struct uverbs_api_object *obj, u32 id, - struct ib_uverbs_file *ufile, int success_res) + const struct uverbs_attr_bundle *attrs) { struct ib_uobject *uobj; - uobj = __uobj_get_destroy(obj, id, ufile); + uobj = __uobj_get_destroy(obj, id, attrs); if (IS_ERR(uobj)) return PTR_ERR(uobj); rdma_lookup_put_uobject(uobj, UVERBS_LOOKUP_WRITE); - return success_res; + return 0; } /* alloc_uobj must be undone by uverbs_destroy_uobject() */ @@ -267,7 +268,7 @@ static struct ib_uobject *alloc_uobj(struct ib_uverbs_file *ufile, struct ib_uobject *uobj; struct ib_ucontext *ucontext; - ucontext = ib_uverbs_get_ucontext(ufile); + ucontext = ib_uverbs_get_ucontext_file(ufile); if (IS_ERR(ucontext)) return ERR_CAST(ucontext); @@ -397,16 +398,23 @@ struct ib_uobject *rdma_lookup_get_uobject(const struct uverbs_api_object *obj, struct ib_uobject *uobj; int ret; - if (!obj) - return ERR_PTR(-EINVAL); + if (IS_ERR(obj) && PTR_ERR(obj) == -ENOMSG) { + /* must be UVERBS_IDR_ANY_OBJECT, see uapi_get_object() */ + uobj = lookup_get_idr_uobject(NULL, ufile, id, mode); + if (IS_ERR(uobj)) + return uobj; + } else { + if (IS_ERR(obj)) + return ERR_PTR(-EINVAL); - uobj = obj->type_class->lookup_get(obj, ufile, id, mode); - if (IS_ERR(uobj)) - return uobj; + uobj = obj->type_class->lookup_get(obj, ufile, id, mode); + if (IS_ERR(uobj)) + return uobj; - if (uobj->uapi_object != obj) { - ret = -EINVAL; - goto free; + if (uobj->uapi_object != obj) { + ret = -EINVAL; + goto free; + } } /* @@ -426,7 +434,7 @@ struct ib_uobject *rdma_lookup_get_uobject(const struct uverbs_api_object *obj, return uobj; free: - obj->type_class->lookup_put(uobj, mode); + uobj->uapi_object->type_class->lookup_put(uobj, mode); uverbs_uobject_put(uobj); return ERR_PTR(ret); } @@ -490,7 +498,7 @@ struct ib_uobject *rdma_alloc_begin_uobject(const struct uverbs_api_object *obj, { struct ib_uobject *ret; - if (!obj) + if (IS_ERR(obj)) return ERR_PTR(-EINVAL); /* @@ -812,18 +820,20 @@ static void ufile_destroy_ucontext(struct ib_uverbs_file *ufile, */ if (reason == RDMA_REMOVE_DRIVER_REMOVE) { uverbs_user_mmap_disassociate(ufile); - if (ib_dev->disassociate_ucontext) - ib_dev->disassociate_ucontext(ucontext); + if (ib_dev->ops.disassociate_ucontext) + ib_dev->ops.disassociate_ucontext(ucontext); } ib_rdmacg_uncharge(&ucontext->cg_obj, ib_dev, RDMACG_RESOURCE_HCA_HANDLE); + rdma_restrack_del(&ucontext->res); + /* * FIXME: Drivers are not permitted to fail dealloc_ucontext, remove * the error return. */ - ret = ib_dev->dealloc_ucontext(ucontext); + ret = ib_dev->ops.dealloc_ucontext(ucontext); WARN_ON(ret); ufile->ucontext = NULL; diff --git a/drivers/infiniband/core/rdma_core.h b/drivers/infiniband/core/rdma_core.h index 4886d2bba7c7..be6b8e1257d0 100644 --- a/drivers/infiniband/core/rdma_core.h +++ b/drivers/infiniband/core/rdma_core.h @@ -118,43 +118,67 @@ void release_ufile_idr_uobject(struct ib_uverbs_file *ufile); * Depending on ID the slot pointer in the radix tree points at one of these * structs. */ -struct uverbs_api_object { - const struct uverbs_obj_type *type_attrs; - const struct uverbs_obj_type_class *type_class; -}; struct uverbs_api_ioctl_method { - int (__rcu *handler)(struct ib_uverbs_file *ufile, - struct uverbs_attr_bundle *ctx); + int(__rcu *handler)(struct uverbs_attr_bundle *attrs); DECLARE_BITMAP(attr_mandatory, UVERBS_API_ATTR_BKEY_LEN); u16 bundle_size; u8 use_stack:1; u8 driver_method:1; + u8 disabled:1; + u8 has_udata:1; u8 key_bitmap_len; u8 destroy_bkey; }; +struct uverbs_api_write_method { + int (*handler)(struct uverbs_attr_bundle *attrs); + u8 disabled:1; + u8 is_ex:1; + u8 has_udata:1; + u8 has_resp:1; + u8 req_size; + u8 resp_size; +}; + struct uverbs_api_attr { struct uverbs_attr_spec spec; }; -struct uverbs_api_object; struct uverbs_api { /* radix tree contains struct uverbs_api_* pointers */ struct radix_tree_root radix; enum rdma_driver_id driver_id; + + unsigned int num_write; + unsigned int num_write_ex; + struct uverbs_api_write_method notsupp_method; + const struct uverbs_api_write_method **write_methods; + const struct uverbs_api_write_method **write_ex_methods; }; +/* + * Get an uverbs_api_object that corresponds to the given object_id. + * Note: + * -ENOMSG means that any object is allowed to match during lookup. + */ static inline const struct uverbs_api_object * uapi_get_object(struct uverbs_api *uapi, u16 object_id) { - return radix_tree_lookup(&uapi->radix, uapi_key_obj(object_id)); + const struct uverbs_api_object *res; + + if (object_id == UVERBS_IDR_ANY_OBJECT) + return ERR_PTR(-ENOMSG); + + res = radix_tree_lookup(&uapi->radix, uapi_key_obj(object_id)); + if (!res) + return ERR_PTR(-ENOENT); + + return res; } char *uapi_key_format(char *S, unsigned int key); -struct uverbs_api *uverbs_alloc_api( - const struct uverbs_object_tree_def *const *driver_specs, - enum rdma_driver_id driver_id); +struct uverbs_api *uverbs_alloc_api(struct ib_device *ibdev); void uverbs_disassociate_api_pre(struct ib_uverbs_device *uverbs_dev); void uverbs_disassociate_api(struct uverbs_api *uapi); void uverbs_destroy_api(struct uverbs_api *uapi); @@ -162,4 +186,37 @@ void uapi_compute_bundle_size(struct uverbs_api_ioctl_method *method_elm, unsigned int num_attrs); void uverbs_user_mmap_disassociate(struct ib_uverbs_file *ufile); +extern const struct uapi_definition uverbs_def_obj_counters[]; +extern const struct uapi_definition uverbs_def_obj_cq[]; +extern const struct uapi_definition uverbs_def_obj_device[]; +extern const struct uapi_definition uverbs_def_obj_dm[]; +extern const struct uapi_definition uverbs_def_obj_flow_action[]; +extern const struct uapi_definition uverbs_def_obj_intf[]; +extern const struct uapi_definition uverbs_def_obj_mr[]; +extern const struct uapi_definition uverbs_def_write_intf[]; + +static inline const struct uverbs_api_write_method * +uapi_get_method(const struct uverbs_api *uapi, u32 command) +{ + u32 cmd_idx = command & IB_USER_VERBS_CMD_COMMAND_MASK; + + if (command & ~(u32)(IB_USER_VERBS_CMD_FLAG_EXTENDED | + IB_USER_VERBS_CMD_COMMAND_MASK)) + return ERR_PTR(-EINVAL); + + if (command & IB_USER_VERBS_CMD_FLAG_EXTENDED) { + if (cmd_idx >= uapi->num_write_ex) + return ERR_PTR(-EOPNOTSUPP); + return uapi->write_ex_methods[cmd_idx]; + } + + if (cmd_idx >= uapi->num_write) + return ERR_PTR(-EOPNOTSUPP); + return uapi->write_methods[cmd_idx]; +} + +void uverbs_fill_udata(struct uverbs_attr_bundle *bundle, + struct ib_udata *udata, unsigned int attr_in, + unsigned int attr_out); + #endif /* RDMA_CORE_H */ diff --git a/drivers/infiniband/core/restrack.c b/drivers/infiniband/core/restrack.c index 06d8657ce583..46a5c553c624 100644 --- a/drivers/infiniband/core/restrack.c +++ b/drivers/infiniband/core/restrack.c @@ -32,6 +32,7 @@ static const char *type2str(enum rdma_restrack_type type) [RDMA_RESTRACK_QP] = "QP", [RDMA_RESTRACK_CM_ID] = "CM_ID", [RDMA_RESTRACK_MR] = "MR", + [RDMA_RESTRACK_CTX] = "CTX", }; return names[type]; @@ -130,31 +131,14 @@ static struct ib_device *res_to_dev(struct rdma_restrack_entry *res) res)->id.device; case RDMA_RESTRACK_MR: return container_of(res, struct ib_mr, res)->device; + case RDMA_RESTRACK_CTX: + return container_of(res, struct ib_ucontext, res)->device; default: WARN_ONCE(true, "Wrong resource tracking type %u\n", res->type); return NULL; } } -static bool res_is_user(struct rdma_restrack_entry *res) -{ - switch (res->type) { - case RDMA_RESTRACK_PD: - return container_of(res, struct ib_pd, res)->uobject; - case RDMA_RESTRACK_CQ: - return container_of(res, struct ib_cq, res)->uobject; - case RDMA_RESTRACK_QP: - return container_of(res, struct ib_qp, res)->uobject; - case RDMA_RESTRACK_CM_ID: - return !res->kern_name; - case RDMA_RESTRACK_MR: - return container_of(res, struct ib_mr, res)->pd->uobject; - default: - WARN_ONCE(true, "Wrong resource tracking type %u\n", res->type); - return false; - } -} - void rdma_restrack_set_task(struct rdma_restrack_entry *res, const char *caller) { @@ -170,17 +154,17 @@ void rdma_restrack_set_task(struct rdma_restrack_entry *res, } EXPORT_SYMBOL(rdma_restrack_set_task); -void rdma_restrack_add(struct rdma_restrack_entry *res) +static void rdma_restrack_add(struct rdma_restrack_entry *res) { struct ib_device *dev = res_to_dev(res); if (!dev) return; - if (res->type != RDMA_RESTRACK_CM_ID || !res_is_user(res)) + if (res->type != RDMA_RESTRACK_CM_ID || rdma_is_kernel_res(res)) res->task = NULL; - if (res_is_user(res)) { + if (!rdma_is_kernel_res(res)) { if (!res->task) rdma_restrack_set_task(res, NULL); res->kern_name = NULL; @@ -196,7 +180,28 @@ void rdma_restrack_add(struct rdma_restrack_entry *res) hash_add(dev->res.hash, &res->node, res->type); up_write(&dev->res.rwsem); } -EXPORT_SYMBOL(rdma_restrack_add); + +/** + * rdma_restrack_kadd() - add kernel object to the reource tracking database + * @res: resource entry + */ +void rdma_restrack_kadd(struct rdma_restrack_entry *res) +{ + res->user = false; + rdma_restrack_add(res); +} +EXPORT_SYMBOL(rdma_restrack_kadd); + +/** + * rdma_restrack_uadd() - add user object to the reource tracking database + * @res: resource entry + */ +void rdma_restrack_uadd(struct rdma_restrack_entry *res) +{ + res->user = true; + rdma_restrack_add(res); +} +EXPORT_SYMBOL(rdma_restrack_uadd); int __must_check rdma_restrack_get(struct rdma_restrack_entry *res) { diff --git a/drivers/infiniband/core/roce_gid_mgmt.c b/drivers/infiniband/core/roce_gid_mgmt.c index 25d43c8f1c2a..558de0b9895c 100644 --- a/drivers/infiniband/core/roce_gid_mgmt.c +++ b/drivers/infiniband/core/roce_gid_mgmt.c @@ -267,6 +267,9 @@ is_upper_ndev_bond_master_filter(struct ib_device *ib_dev, u8 port, struct net_device *cookie_ndev = cookie; bool match = false; + if (!rdma_ndev) + return false; + rcu_read_lock(); if (netif_is_bond_master(cookie_ndev) && rdma_is_upper_dev_rcu(rdma_ndev, cookie_ndev)) diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c index be5ba5e15496..97e6d7b69abf 100644 --- a/drivers/infiniband/core/sa_query.c +++ b/drivers/infiniband/core/sa_query.c @@ -1147,7 +1147,7 @@ static void free_sm_ah(struct kref *kref) { struct ib_sa_sm_ah *sm_ah = container_of(kref, struct ib_sa_sm_ah, ref); - rdma_destroy_ah(sm_ah->ah); + rdma_destroy_ah(sm_ah->ah, 0); kfree(sm_ah); } @@ -2276,7 +2276,8 @@ static void update_sm_ah(struct work_struct *work) cpu_to_be64(IB_SA_WELL_KNOWN_GUID)); } - new_ah->ah = rdma_create_ah(port->agent->qp->pd, &ah_attr); + new_ah->ah = rdma_create_ah(port->agent->qp->pd, &ah_attr, + RDMA_CREATE_AH_SLEEPABLE); if (IS_ERR(new_ah->ah)) { pr_warn("Couldn't create new SM AH\n"); kfree(new_ah); diff --git a/drivers/infiniband/core/security.c b/drivers/infiniband/core/security.c index 1143c0448666..1efadbccf394 100644 --- a/drivers/infiniband/core/security.c +++ b/drivers/infiniband/core/security.c @@ -626,10 +626,10 @@ int ib_security_modify_qp(struct ib_qp *qp, } if (!ret) - ret = real_qp->device->modify_qp(real_qp, - qp_attr, - qp_attr_mask, - udata); + ret = real_qp->device->ops.modify_qp(real_qp, + qp_attr, + qp_attr_mask, + udata); if (new_pps) { /* Clean up the lists and free the appropriate diff --git a/drivers/infiniband/core/smi.h b/drivers/infiniband/core/smi.h index 33c91c8a16e9..91d9b353ab85 100644 --- a/drivers/infiniband/core/smi.h +++ b/drivers/infiniband/core/smi.h @@ -67,7 +67,7 @@ static inline enum smi_action smi_check_local_smp(struct ib_smp *smp, { /* C14-9:3 -- We're at the end of the DR segment of path */ /* C14-9:4 -- Hop Pointer = Hop Count + 1 -> give to SMA/SM */ - return ((device->process_mad && + return ((device->ops.process_mad && !ib_get_smp_direction(smp) && (smp->hop_ptr == smp->hop_cnt + 1)) ? IB_SMI_HANDLE : IB_SMI_DISCARD); @@ -82,7 +82,7 @@ static inline enum smi_action smi_check_local_returning_smp(struct ib_smp *smp, { /* C14-13:3 -- We're at the end of the DR segment of path */ /* C14-13:4 -- Hop Pointer == 0 -> give to SM */ - return ((device->process_mad && + return ((device->ops.process_mad && ib_get_smp_direction(smp) && !smp->hop_ptr) ? IB_SMI_HANDLE : IB_SMI_DISCARD); } diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index 6fcce2c206c6..80f68eb0ba5c 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -462,7 +462,7 @@ static int get_perf_mad(struct ib_device *dev, int port_num, __be16 attr, u16 out_mad_pkey_index = 0; ssize_t ret; - if (!dev->process_mad) + if (!dev->ops.process_mad) return -ENOSYS; in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); @@ -481,11 +481,11 @@ static int get_perf_mad(struct ib_device *dev, int port_num, __be16 attr, if (attr != IB_PMA_CLASS_PORT_INFO) in_mad->data[41] = port_num; /* PortSelect field */ - if ((dev->process_mad(dev, IB_MAD_IGNORE_MKEY, - port_num, NULL, NULL, - (const struct ib_mad_hdr *)in_mad, mad_size, - (struct ib_mad_hdr *)out_mad, &mad_size, - &out_mad_pkey_index) & + if ((dev->ops.process_mad(dev, IB_MAD_IGNORE_MKEY, + port_num, NULL, NULL, + (const struct ib_mad_hdr *)in_mad, mad_size, + (struct ib_mad_hdr *)out_mad, &mad_size, + &out_mad_pkey_index) & (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { ret = -EINVAL; @@ -786,7 +786,7 @@ static int update_hw_stats(struct ib_device *dev, struct rdma_hw_stats *stats, if (time_is_after_eq_jiffies(stats->timestamp + stats->lifespan)) return 0; - ret = dev->get_hw_stats(dev, stats, port_num, index); + ret = dev->ops.get_hw_stats(dev, stats, port_num, index); if (ret < 0) return ret; if (ret == stats->num_counters) @@ -946,7 +946,7 @@ static void setup_hw_stats(struct ib_device *device, struct ib_port *port, struct rdma_hw_stats *stats; int i, ret; - stats = device->alloc_hw_stats(device, port_num); + stats = device->ops.alloc_hw_stats(device, port_num); if (!stats) return; @@ -964,8 +964,8 @@ static void setup_hw_stats(struct ib_device *device, struct ib_port *port, if (!hsag) goto err_free_stats; - ret = device->get_hw_stats(device, stats, port_num, - stats->num_counters); + ret = device->ops.get_hw_stats(device, stats, port_num, + stats->num_counters); if (ret != stats->num_counters) goto err_free_hsag; @@ -1057,7 +1057,7 @@ static int add_port(struct ib_device *device, int port_num, goto err_put; } - if (device->process_mad) { + if (device->ops.process_mad) { p->pma_table = get_counter_table(device, port_num); ret = sysfs_create_group(&p->kobj, p->pma_table); if (ret) @@ -1124,7 +1124,7 @@ static int add_port(struct ib_device *device, int port_num, * port, so holder should be device. Therefore skip per port conunter * initialization. */ - if (device->alloc_hw_stats && port_num) + if (device->ops.alloc_hw_stats && port_num) setup_hw_stats(device, p, port_num); list_add_tail(&p->kobj.entry, &device->port_list); @@ -1245,7 +1245,7 @@ static ssize_t node_desc_store(struct device *device, struct ib_device_modify desc = {}; int ret; - if (!dev->modify_device) + if (!dev->ops.modify_device) return -EIO; memcpy(desc.node_desc, buf, min_t(int, count, IB_DEVICE_NODE_DESC_MAX)); @@ -1341,7 +1341,7 @@ int ib_device_register_sysfs(struct ib_device *device, } } - if (device->alloc_hw_stats) + if (device->ops.alloc_hw_stats) setup_hw_stats(device, NULL, 0); return 0; diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c index 73332b9a25b5..7541fbaf58a3 100644 --- a/drivers/infiniband/core/ucm.c +++ b/drivers/infiniband/core/ucm.c @@ -1242,7 +1242,7 @@ static void ib_ucm_add_one(struct ib_device *device) dev_t base; struct ib_ucm_device *ucm_dev; - if (!device->alloc_ucontext || !rdma_cap_ib_cm(device, 1)) + if (!device->ops.alloc_ucontext || !rdma_cap_ib_cm(device, 1)) return; ucm_dev = kzalloc(sizeof *ucm_dev, GFP_KERNEL); diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c index 676c1fd1119d..a4ec43093cb3 100644 --- a/drivers/infiniband/core/umem_odp.c +++ b/drivers/infiniband/core/umem_odp.c @@ -146,15 +146,12 @@ static int invalidate_range_start_trampoline(struct ib_umem_odp *item, } static int ib_umem_notifier_invalidate_range_start(struct mmu_notifier *mn, - struct mm_struct *mm, - unsigned long start, - unsigned long end, - bool blockable) + const struct mmu_notifier_range *range) { struct ib_ucontext_per_mm *per_mm = container_of(mn, struct ib_ucontext_per_mm, mn); - if (blockable) + if (range->blockable) down_read(&per_mm->umem_rwsem); else if (!down_read_trylock(&per_mm->umem_rwsem)) return -EAGAIN; @@ -169,9 +166,10 @@ static int ib_umem_notifier_invalidate_range_start(struct mmu_notifier *mn, return 0; } - return rbt_ib_umem_for_each_in_range(&per_mm->umem_tree, start, end, + return rbt_ib_umem_for_each_in_range(&per_mm->umem_tree, range->start, + range->end, invalidate_range_start_trampoline, - blockable, NULL); + range->blockable, NULL); } static int invalidate_range_end_trampoline(struct ib_umem_odp *item, u64 start, @@ -182,9 +180,7 @@ static int invalidate_range_end_trampoline(struct ib_umem_odp *item, u64 start, } static void ib_umem_notifier_invalidate_range_end(struct mmu_notifier *mn, - struct mm_struct *mm, - unsigned long start, - unsigned long end) + const struct mmu_notifier_range *range) { struct ib_ucontext_per_mm *per_mm = container_of(mn, struct ib_ucontext_per_mm, mn); @@ -192,8 +188,8 @@ static void ib_umem_notifier_invalidate_range_end(struct mmu_notifier *mn, if (unlikely(!per_mm->active)) return; - rbt_ib_umem_for_each_in_range(&per_mm->umem_tree, start, - end, + rbt_ib_umem_for_each_in_range(&per_mm->umem_tree, range->start, + range->end, invalidate_range_end_trampoline, true, NULL); up_read(&per_mm->umem_rwsem); } @@ -647,8 +643,13 @@ int ib_umem_odp_map_dma_pages(struct ib_umem_odp *umem_odp, u64 user_virt, flags, local_page_list, NULL, NULL); up_read(&owning_mm->mmap_sem); - if (npages < 0) + if (npages < 0) { + if (npages != -EAGAIN) + pr_warn("fail to get %zu user pages with error %d\n", gup_num_pages, npages); + else + pr_debug("fail to get %zu user pages with error %d\n", gup_num_pages, npages); break; + } bcnt -= min_t(size_t, npages << PAGE_SHIFT, bcnt); mutex_lock(&umem_odp->umem_mutex); @@ -666,8 +667,13 @@ int ib_umem_odp_map_dma_pages(struct ib_umem_odp *umem_odp, u64 user_virt, ret = ib_umem_odp_map_dma_single_page( umem_odp, k, local_page_list[j], access_mask, current_seq); - if (ret < 0) + if (ret < 0) { + if (ret != -EAGAIN) + pr_warn("ib_umem_odp_map_dma_single_page failed with error %d\n", ret); + else + pr_debug("ib_umem_odp_map_dma_single_page failed with error %d\n", ret); break; + } p = page_to_phys(local_page_list[j]); k++; diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index f55f48f6b272..de8d31ab8945 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -88,10 +88,9 @@ enum { struct ib_umad_port { struct cdev cdev; - struct device *dev; - + struct device dev; struct cdev sm_cdev; - struct device *sm_dev; + struct device sm_dev; struct semaphore sm_sem; struct mutex file_mutex; @@ -104,8 +103,8 @@ struct ib_umad_port { }; struct ib_umad_device { - struct kobject kobj; - struct ib_umad_port port[0]; + struct kref kref; + struct ib_umad_port ports[]; }; struct ib_umad_file { @@ -130,8 +129,6 @@ struct ib_umad_packet { struct ib_user_mad mad; }; -static struct class *umad_class; - static const dev_t base_umad_dev = MKDEV(IB_UMAD_MAJOR, IB_UMAD_MINOR_BASE); static const dev_t base_issm_dev = MKDEV(IB_UMAD_MAJOR, IB_UMAD_MINOR_BASE) + IB_UMAD_NUM_FIXED_MINOR; @@ -143,17 +140,23 @@ static DEFINE_IDA(umad_ida); static void ib_umad_add_one(struct ib_device *device); static void ib_umad_remove_one(struct ib_device *device, void *client_data); -static void ib_umad_release_dev(struct kobject *kobj) +static void ib_umad_dev_free(struct kref *kref) { struct ib_umad_device *dev = - container_of(kobj, struct ib_umad_device, kobj); + container_of(kref, struct ib_umad_device, kref); kfree(dev); } -static struct kobj_type ib_umad_dev_ktype = { - .release = ib_umad_release_dev, -}; +static void ib_umad_dev_get(struct ib_umad_device *dev) +{ + kref_get(&dev->kref); +} + +static void ib_umad_dev_put(struct ib_umad_device *dev) +{ + kref_put(&dev->kref, ib_umad_dev_free); +} static int hdr_size(struct ib_umad_file *file) { @@ -205,7 +208,7 @@ static void send_handler(struct ib_mad_agent *agent, struct ib_umad_packet *packet = send_wc->send_buf->context[0]; dequeue_send(file, packet); - rdma_destroy_ah(packet->msg->ah); + rdma_destroy_ah(packet->msg->ah, RDMA_DESTROY_AH_SLEEPABLE); ib_free_send_mad(packet->msg); if (send_wc->status == IB_WC_RESP_TIMEOUT_ERR) { @@ -621,7 +624,7 @@ err_send: err_msg: ib_free_send_mad(packet->msg); err_ah: - rdma_destroy_ah(ah); + rdma_destroy_ah(ah, RDMA_DESTROY_AH_SLEEPABLE); err_up: mutex_unlock(&file->mutex); err: @@ -657,7 +660,7 @@ static int ib_umad_reg_agent(struct ib_umad_file *file, void __user *arg, mutex_lock(&file->mutex); if (!file->port->ib_dev) { - dev_notice(file->port->dev, + dev_notice(&file->port->dev, "ib_umad_reg_agent: invalid device\n"); ret = -EPIPE; goto out; @@ -669,7 +672,7 @@ static int ib_umad_reg_agent(struct ib_umad_file *file, void __user *arg, } if (ureq.qpn != 0 && ureq.qpn != 1) { - dev_notice(file->port->dev, + dev_notice(&file->port->dev, "ib_umad_reg_agent: invalid QPN %d specified\n", ureq.qpn); ret = -EINVAL; @@ -680,7 +683,7 @@ static int ib_umad_reg_agent(struct ib_umad_file *file, void __user *arg, if (!__get_agent(file, agent_id)) goto found; - dev_notice(file->port->dev, + dev_notice(&file->port->dev, "ib_umad_reg_agent: Max Agents (%u) reached\n", IB_UMAD_MAX_AGENTS); ret = -ENOMEM; @@ -725,10 +728,10 @@ found: if (!file->already_used) { file->already_used = 1; if (!file->use_pkey_index) { - dev_warn(file->port->dev, + dev_warn(&file->port->dev, "process %s did not enable P_Key index support.\n", current->comm); - dev_warn(file->port->dev, + dev_warn(&file->port->dev, " Documentation/infiniband/user_mad.txt has info on the new ABI.\n"); } } @@ -759,7 +762,7 @@ static int ib_umad_reg_agent2(struct ib_umad_file *file, void __user *arg) mutex_lock(&file->mutex); if (!file->port->ib_dev) { - dev_notice(file->port->dev, + dev_notice(&file->port->dev, "ib_umad_reg_agent2: invalid device\n"); ret = -EPIPE; goto out; @@ -771,7 +774,7 @@ static int ib_umad_reg_agent2(struct ib_umad_file *file, void __user *arg) } if (ureq.qpn != 0 && ureq.qpn != 1) { - dev_notice(file->port->dev, + dev_notice(&file->port->dev, "ib_umad_reg_agent2: invalid QPN %d specified\n", ureq.qpn); ret = -EINVAL; @@ -779,7 +782,7 @@ static int ib_umad_reg_agent2(struct ib_umad_file *file, void __user *arg) } if (ureq.flags & ~IB_USER_MAD_REG_FLAGS_CAP) { - dev_notice(file->port->dev, + dev_notice(&file->port->dev, "ib_umad_reg_agent2 failed: invalid registration flags specified 0x%x; supported 0x%x\n", ureq.flags, IB_USER_MAD_REG_FLAGS_CAP); ret = -EINVAL; @@ -796,7 +799,7 @@ static int ib_umad_reg_agent2(struct ib_umad_file *file, void __user *arg) if (!__get_agent(file, agent_id)) goto found; - dev_notice(file->port->dev, + dev_notice(&file->port->dev, "ib_umad_reg_agent2: Max Agents (%u) reached\n", IB_UMAD_MAX_AGENTS); ret = -ENOMEM; @@ -808,7 +811,7 @@ found: req.mgmt_class = ureq.mgmt_class; req.mgmt_class_version = ureq.mgmt_class_version; if (ureq.oui & 0xff000000) { - dev_notice(file->port->dev, + dev_notice(&file->port->dev, "ib_umad_reg_agent2 failed: oui invalid 0x%08x\n", ureq.oui); ret = -EINVAL; @@ -986,8 +989,7 @@ static int ib_umad_open(struct inode *inode, struct file *filp) goto out; } - kobject_get(&port->umad_dev->kobj); - + ib_umad_dev_get(port->umad_dev); out: mutex_unlock(&port->file_mutex); return ret; @@ -1025,8 +1027,7 @@ static int ib_umad_close(struct inode *inode, struct file *filp) mutex_unlock(&file->port->file_mutex); kfree(file); - kobject_put(&dev->kobj); - + ib_umad_dev_put(dev); return 0; } @@ -1076,8 +1077,7 @@ static int ib_umad_sm_open(struct inode *inode, struct file *filp) if (ret) goto err_clr_sm_cap; - kobject_get(&port->umad_dev->kobj); - + ib_umad_dev_get(port->umad_dev); return 0; err_clr_sm_cap: @@ -1106,8 +1106,7 @@ static int ib_umad_sm_close(struct inode *inode, struct file *filp) up(&port->sm_sem); - kobject_put(&port->umad_dev->kobj); - + ib_umad_dev_put(port->umad_dev); return ret; } @@ -1124,7 +1123,7 @@ static struct ib_client umad_client = { .remove = ib_umad_remove_one }; -static ssize_t show_ibdev(struct device *dev, struct device_attribute *attr, +static ssize_t ibdev_show(struct device *dev, struct device_attribute *attr, char *buf) { struct ib_umad_port *port = dev_get_drvdata(dev); @@ -1134,9 +1133,9 @@ static ssize_t show_ibdev(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%s\n", dev_name(&port->ib_dev->dev)); } -static DEVICE_ATTR(ibdev, S_IRUGO, show_ibdev, NULL); +static DEVICE_ATTR_RO(ibdev); -static ssize_t show_port(struct device *dev, struct device_attribute *attr, +static ssize_t port_show(struct device *dev, struct device_attribute *attr, char *buf) { struct ib_umad_port *port = dev_get_drvdata(dev); @@ -1146,10 +1145,59 @@ static ssize_t show_port(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%d\n", port->port_num); } -static DEVICE_ATTR(port, S_IRUGO, show_port, NULL); +static DEVICE_ATTR_RO(port); -static CLASS_ATTR_STRING(abi_version, S_IRUGO, - __stringify(IB_USER_MAD_ABI_VERSION)); +static struct attribute *umad_class_dev_attrs[] = { + &dev_attr_ibdev.attr, + &dev_attr_port.attr, + NULL, +}; +ATTRIBUTE_GROUPS(umad_class_dev); + +static char *umad_devnode(struct device *dev, umode_t *mode) +{ + return kasprintf(GFP_KERNEL, "infiniband/%s", dev_name(dev)); +} + +static ssize_t abi_version_show(struct class *class, + struct class_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", IB_USER_MAD_ABI_VERSION); +} +static CLASS_ATTR_RO(abi_version); + +static struct attribute *umad_class_attrs[] = { + &class_attr_abi_version.attr, + NULL, +}; +ATTRIBUTE_GROUPS(umad_class); + +static struct class umad_class = { + .name = "infiniband_mad", + .devnode = umad_devnode, + .class_groups = umad_class_groups, + .dev_groups = umad_class_dev_groups, +}; + +static void ib_umad_release_port(struct device *device) +{ + struct ib_umad_port *port = dev_get_drvdata(device); + struct ib_umad_device *umad_dev = port->umad_dev; + + ib_umad_dev_put(umad_dev); +} + +static void ib_umad_init_port_dev(struct device *dev, + struct ib_umad_port *port, + const struct ib_device *device) +{ + device_initialize(dev); + ib_umad_dev_get(port->umad_dev); + dev->class = &umad_class; + dev->parent = device->dev.parent; + dev_set_drvdata(dev, port); + dev->release = ib_umad_release_port; +} static int ib_umad_init_port(struct ib_device *device, int port_num, struct ib_umad_device *umad_dev, @@ -1158,6 +1206,7 @@ static int ib_umad_init_port(struct ib_device *device, int port_num, int devnum; dev_t base_umad; dev_t base_issm; + int ret; devnum = ida_alloc_max(&umad_ida, IB_UMAD_MAX_PORTS - 1, GFP_KERNEL); if (devnum < 0) @@ -1172,63 +1221,41 @@ static int ib_umad_init_port(struct ib_device *device, int port_num, } port->ib_dev = device; + port->umad_dev = umad_dev; port->port_num = port_num; sema_init(&port->sm_sem, 1); mutex_init(&port->file_mutex); INIT_LIST_HEAD(&port->file_list); + ib_umad_init_port_dev(&port->dev, port, device); + port->dev.devt = base_umad; + dev_set_name(&port->dev, "umad%d", port->dev_num); cdev_init(&port->cdev, &umad_fops); port->cdev.owner = THIS_MODULE; - cdev_set_parent(&port->cdev, &umad_dev->kobj); - kobject_set_name(&port->cdev.kobj, "umad%d", port->dev_num); - if (cdev_add(&port->cdev, base_umad, 1)) - goto err_cdev; - port->dev = device_create(umad_class, device->dev.parent, - port->cdev.dev, port, - "umad%d", port->dev_num); - if (IS_ERR(port->dev)) + ret = cdev_device_add(&port->cdev, &port->dev); + if (ret) goto err_cdev; - if (device_create_file(port->dev, &dev_attr_ibdev)) - goto err_dev; - if (device_create_file(port->dev, &dev_attr_port)) - goto err_dev; - + ib_umad_init_port_dev(&port->sm_dev, port, device); + port->sm_dev.devt = base_issm; + dev_set_name(&port->sm_dev, "issm%d", port->dev_num); cdev_init(&port->sm_cdev, &umad_sm_fops); port->sm_cdev.owner = THIS_MODULE; - cdev_set_parent(&port->sm_cdev, &umad_dev->kobj); - kobject_set_name(&port->sm_cdev.kobj, "issm%d", port->dev_num); - if (cdev_add(&port->sm_cdev, base_issm, 1)) - goto err_sm_cdev; - - port->sm_dev = device_create(umad_class, device->dev.parent, - port->sm_cdev.dev, port, - "issm%d", port->dev_num); - if (IS_ERR(port->sm_dev)) - goto err_sm_cdev; - - if (device_create_file(port->sm_dev, &dev_attr_ibdev)) - goto err_sm_dev; - if (device_create_file(port->sm_dev, &dev_attr_port)) - goto err_sm_dev; - - return 0; -err_sm_dev: - device_destroy(umad_class, port->sm_cdev.dev); + ret = cdev_device_add(&port->sm_cdev, &port->sm_dev); + if (ret) + goto err_dev; -err_sm_cdev: - cdev_del(&port->sm_cdev); + return 0; err_dev: - device_destroy(umad_class, port->cdev.dev); - + put_device(&port->sm_dev); + cdev_device_del(&port->cdev, &port->dev); err_cdev: - cdev_del(&port->cdev); + put_device(&port->dev); ida_free(&umad_ida, devnum); - - return -1; + return ret; } static void ib_umad_kill_port(struct ib_umad_port *port) @@ -1236,17 +1263,11 @@ static void ib_umad_kill_port(struct ib_umad_port *port) struct ib_umad_file *file; int id; - dev_set_drvdata(port->dev, NULL); - dev_set_drvdata(port->sm_dev, NULL); - - device_destroy(umad_class, port->cdev.dev); - device_destroy(umad_class, port->sm_cdev.dev); - - cdev_del(&port->cdev); - cdev_del(&port->sm_cdev); - mutex_lock(&port->file_mutex); + /* Mark ib_dev NULL and block ioctl or other file ops to progress + * further. + */ port->ib_dev = NULL; list_for_each_entry(file, &port->file_list, port_list) { @@ -1260,6 +1281,11 @@ static void ib_umad_kill_port(struct ib_umad_port *port) } mutex_unlock(&port->file_mutex); + + cdev_device_del(&port->sm_cdev, &port->sm_dev); + put_device(&port->sm_dev); + cdev_device_del(&port->cdev, &port->dev); + put_device(&port->dev); ida_free(&umad_ida, port->dev_num); } @@ -1272,22 +1298,17 @@ static void ib_umad_add_one(struct ib_device *device) s = rdma_start_port(device); e = rdma_end_port(device); - umad_dev = kzalloc(sizeof *umad_dev + - (e - s + 1) * sizeof (struct ib_umad_port), - GFP_KERNEL); + umad_dev = kzalloc(struct_size(umad_dev, ports, e - s + 1), GFP_KERNEL); if (!umad_dev) return; - kobject_init(&umad_dev->kobj, &ib_umad_dev_ktype); - + kref_init(&umad_dev->kref); for (i = s; i <= e; ++i) { if (!rdma_cap_ib_mad(device, i)) continue; - umad_dev->port[i - s].umad_dev = umad_dev; - if (ib_umad_init_port(device, i, umad_dev, - &umad_dev->port[i - s])) + &umad_dev->ports[i - s])) goto err; count++; @@ -1305,10 +1326,10 @@ err: if (!rdma_cap_ib_mad(device, i)) continue; - ib_umad_kill_port(&umad_dev->port[i - s]); + ib_umad_kill_port(&umad_dev->ports[i - s]); } free: - kobject_put(&umad_dev->kobj); + ib_umad_dev_put(umad_dev); } static void ib_umad_remove_one(struct ib_device *device, void *client_data) @@ -1321,15 +1342,9 @@ static void ib_umad_remove_one(struct ib_device *device, void *client_data) for (i = 0; i <= rdma_end_port(device) - rdma_start_port(device); ++i) { if (rdma_cap_ib_mad(device, i + rdma_start_port(device))) - ib_umad_kill_port(&umad_dev->port[i]); + ib_umad_kill_port(&umad_dev->ports[i]); } - - kobject_put(&umad_dev->kobj); -} - -static char *umad_devnode(struct device *dev, umode_t *mode) -{ - return kasprintf(GFP_KERNEL, "infiniband/%s", dev_name(dev)); + ib_umad_dev_put(umad_dev); } static int __init ib_umad_init(void) @@ -1338,7 +1353,7 @@ static int __init ib_umad_init(void) ret = register_chrdev_region(base_umad_dev, IB_UMAD_NUM_FIXED_MINOR * 2, - "infiniband_mad"); + umad_class.name); if (ret) { pr_err("couldn't register device number\n"); goto out; @@ -1346,28 +1361,19 @@ static int __init ib_umad_init(void) ret = alloc_chrdev_region(&dynamic_umad_dev, 0, IB_UMAD_NUM_DYNAMIC_MINOR * 2, - "infiniband_mad"); + umad_class.name); if (ret) { pr_err("couldn't register dynamic device number\n"); goto out_alloc; } dynamic_issm_dev = dynamic_umad_dev + IB_UMAD_NUM_DYNAMIC_MINOR; - umad_class = class_create(THIS_MODULE, "infiniband_mad"); - if (IS_ERR(umad_class)) { - ret = PTR_ERR(umad_class); + ret = class_register(&umad_class); + if (ret) { pr_err("couldn't create class infiniband_mad\n"); goto out_chrdev; } - umad_class->devnode = umad_devnode; - - ret = class_create_file(umad_class, &class_attr_abi_version.attr); - if (ret) { - pr_err("couldn't create abi_version attribute\n"); - goto out_class; - } - ret = ib_register_client(&umad_client); if (ret) { pr_err("couldn't register ib_umad client\n"); @@ -1377,7 +1383,7 @@ static int __init ib_umad_init(void) return 0; out_class: - class_destroy(umad_class); + class_unregister(&umad_class); out_chrdev: unregister_chrdev_region(dynamic_umad_dev, @@ -1394,7 +1400,7 @@ out: static void __exit ib_umad_cleanup(void) { ib_unregister_client(&umad_client); - class_destroy(umad_class); + class_unregister(&umad_class); unregister_chrdev_region(base_umad_dev, IB_UMAD_NUM_FIXED_MINOR * 2); unregister_chrdev_region(dynamic_umad_dev, diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index c97935a0c7c6..ea0bc6885517 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -161,9 +161,6 @@ struct ib_uverbs_file { struct mutex umap_lock; struct list_head umaps; - u64 uverbs_cmd_mask; - u64 uverbs_ex_cmd_mask; - struct idr idr; /* spinlock protects write access to idr */ spinlock_t idr_lock; @@ -249,7 +246,6 @@ int uverbs_dealloc_mw(struct ib_mw *mw); void ib_uverbs_detach_umcast(struct ib_qp *qp, struct ib_uqp_object *uobj); -void create_udata(struct uverbs_attr_bundle *ctx, struct ib_udata *udata); long ib_uverbs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); struct ib_uverbs_flow_spec { @@ -297,63 +293,29 @@ extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_FLOW_ACTION); extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_DM); extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_COUNTERS); -#define IB_UVERBS_DECLARE_CMD(name) \ - ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \ - const char __user *buf, int in_len, \ - int out_len) - -IB_UVERBS_DECLARE_CMD(get_context); -IB_UVERBS_DECLARE_CMD(query_device); -IB_UVERBS_DECLARE_CMD(query_port); -IB_UVERBS_DECLARE_CMD(alloc_pd); -IB_UVERBS_DECLARE_CMD(dealloc_pd); -IB_UVERBS_DECLARE_CMD(reg_mr); -IB_UVERBS_DECLARE_CMD(rereg_mr); -IB_UVERBS_DECLARE_CMD(dereg_mr); -IB_UVERBS_DECLARE_CMD(alloc_mw); -IB_UVERBS_DECLARE_CMD(dealloc_mw); -IB_UVERBS_DECLARE_CMD(create_comp_channel); -IB_UVERBS_DECLARE_CMD(create_cq); -IB_UVERBS_DECLARE_CMD(resize_cq); -IB_UVERBS_DECLARE_CMD(poll_cq); -IB_UVERBS_DECLARE_CMD(req_notify_cq); -IB_UVERBS_DECLARE_CMD(destroy_cq); -IB_UVERBS_DECLARE_CMD(create_qp); -IB_UVERBS_DECLARE_CMD(open_qp); -IB_UVERBS_DECLARE_CMD(query_qp); -IB_UVERBS_DECLARE_CMD(modify_qp); -IB_UVERBS_DECLARE_CMD(destroy_qp); -IB_UVERBS_DECLARE_CMD(post_send); -IB_UVERBS_DECLARE_CMD(post_recv); -IB_UVERBS_DECLARE_CMD(post_srq_recv); -IB_UVERBS_DECLARE_CMD(create_ah); -IB_UVERBS_DECLARE_CMD(destroy_ah); -IB_UVERBS_DECLARE_CMD(attach_mcast); -IB_UVERBS_DECLARE_CMD(detach_mcast); -IB_UVERBS_DECLARE_CMD(create_srq); -IB_UVERBS_DECLARE_CMD(modify_srq); -IB_UVERBS_DECLARE_CMD(query_srq); -IB_UVERBS_DECLARE_CMD(destroy_srq); -IB_UVERBS_DECLARE_CMD(create_xsrq); -IB_UVERBS_DECLARE_CMD(open_xrcd); -IB_UVERBS_DECLARE_CMD(close_xrcd); - -#define IB_UVERBS_DECLARE_EX_CMD(name) \ - int ib_uverbs_ex_##name(struct ib_uverbs_file *file, \ - struct ib_udata *ucore, \ - struct ib_udata *uhw) - -IB_UVERBS_DECLARE_EX_CMD(create_flow); -IB_UVERBS_DECLARE_EX_CMD(destroy_flow); -IB_UVERBS_DECLARE_EX_CMD(query_device); -IB_UVERBS_DECLARE_EX_CMD(create_cq); -IB_UVERBS_DECLARE_EX_CMD(create_qp); -IB_UVERBS_DECLARE_EX_CMD(create_wq); -IB_UVERBS_DECLARE_EX_CMD(modify_wq); -IB_UVERBS_DECLARE_EX_CMD(destroy_wq); -IB_UVERBS_DECLARE_EX_CMD(create_rwq_ind_table); -IB_UVERBS_DECLARE_EX_CMD(destroy_rwq_ind_table); -IB_UVERBS_DECLARE_EX_CMD(modify_qp); -IB_UVERBS_DECLARE_EX_CMD(modify_cq); +/* + * ib_uverbs_query_port_resp.port_cap_flags started out as just a copy of the + * PortInfo CapabilityMask, but was extended with unique bits. + */ +static inline u32 make_port_cap_flags(const struct ib_port_attr *attr) +{ + u32 res; + + /* All IBA CapabilityMask bits are passed through here, except bit 26, + * which is overridden with IP_BASED_GIDS. This is due to a historical + * mistake in the implementation of IP_BASED_GIDS. Otherwise all other + * bits match the IBA definition across all kernel versions. + */ + res = attr->port_cap_flags & ~(u32)IB_UVERBS_PCF_IP_BASED_GIDS; + + if (attr->ip_gids) + res |= IB_UVERBS_PCF_IP_BASED_GIDS; + + return res; +} + +void copy_port_attr_to_resp(struct ib_port_attr *attr, + struct ib_uverbs_query_port_resp *resp, + struct ib_device *ib_dev, u8 port_num); #endif /* UVERBS_H */ diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index a93853770e3c..6b12cc5f97b2 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -47,11 +47,134 @@ #include "uverbs.h" #include "core_priv.h" +/* + * Copy a response to userspace. If the provided 'resp' is larger than the + * user buffer it is silently truncated. If the user provided a larger buffer + * then the trailing portion is zero filled. + * + * These semantics are intended to support future extension of the output + * structures. + */ +static int uverbs_response(struct uverbs_attr_bundle *attrs, const void *resp, + size_t resp_len) +{ + int ret; + + if (copy_to_user(attrs->ucore.outbuf, resp, + min(attrs->ucore.outlen, resp_len))) + return -EFAULT; + + if (resp_len < attrs->ucore.outlen) { + /* + * Zero fill any extra memory that user + * space might have provided. + */ + ret = clear_user(attrs->ucore.outbuf + resp_len, + attrs->ucore.outlen - resp_len); + if (ret) + return -EFAULT; + } + + return 0; +} + +/* + * Copy a request from userspace. If the provided 'req' is larger than the + * user buffer then the user buffer is zero extended into the 'req'. If 'req' + * is smaller than the user buffer then the uncopied bytes in the user buffer + * must be zero. + */ +static int uverbs_request(struct uverbs_attr_bundle *attrs, void *req, + size_t req_len) +{ + if (copy_from_user(req, attrs->ucore.inbuf, + min(attrs->ucore.inlen, req_len))) + return -EFAULT; + + if (attrs->ucore.inlen < req_len) { + memset(req + attrs->ucore.inlen, 0, + req_len - attrs->ucore.inlen); + } else if (attrs->ucore.inlen > req_len) { + if (!ib_is_buffer_cleared(attrs->ucore.inbuf + req_len, + attrs->ucore.inlen - req_len)) + return -EOPNOTSUPP; + } + return 0; +} + +/* + * Generate the value for the 'response_length' protocol used by write_ex. + * This is the number of bytes the kernel actually wrote. Userspace can use + * this to detect what structure members in the response the kernel + * understood. + */ +static u32 uverbs_response_length(struct uverbs_attr_bundle *attrs, + size_t resp_len) +{ + return min_t(size_t, attrs->ucore.outlen, resp_len); +} + +/* + * The iterator version of the request interface is for handlers that need to + * step over a flex array at the end of a command header. + */ +struct uverbs_req_iter { + const void __user *cur; + const void __user *end; +}; + +static int uverbs_request_start(struct uverbs_attr_bundle *attrs, + struct uverbs_req_iter *iter, + void *req, + size_t req_len) +{ + if (attrs->ucore.inlen < req_len) + return -ENOSPC; + + if (copy_from_user(req, attrs->ucore.inbuf, req_len)) + return -EFAULT; + + iter->cur = attrs->ucore.inbuf + req_len; + iter->end = attrs->ucore.inbuf + attrs->ucore.inlen; + return 0; +} + +static int uverbs_request_next(struct uverbs_req_iter *iter, void *val, + size_t len) +{ + if (iter->cur + len > iter->end) + return -ENOSPC; + + if (copy_from_user(val, iter->cur, len)) + return -EFAULT; + + iter->cur += len; + return 0; +} + +static const void __user *uverbs_request_next_ptr(struct uverbs_req_iter *iter, + size_t len) +{ + const void __user *res = iter->cur; + + if (iter->cur + len > iter->end) + return ERR_PTR(-ENOSPC); + iter->cur += len; + return res; +} + +static int uverbs_request_finish(struct uverbs_req_iter *iter) +{ + if (!ib_is_buffer_cleared(iter->cur, iter->end - iter->cur)) + return -EOPNOTSUPP; + return 0; +} + static struct ib_uverbs_completion_event_file * -_ib_uverbs_lookup_comp_file(s32 fd, struct ib_uverbs_file *ufile) +_ib_uverbs_lookup_comp_file(s32 fd, const struct uverbs_attr_bundle *attrs) { struct ib_uobject *uobj = ufd_get_read(UVERBS_OBJECT_COMP_CHANNEL, - fd, ufile); + fd, attrs); if (IS_ERR(uobj)) return (void *)uobj; @@ -65,24 +188,20 @@ _ib_uverbs_lookup_comp_file(s32 fd, struct ib_uverbs_file *ufile) #define ib_uverbs_lookup_comp_file(_fd, _ufile) \ _ib_uverbs_lookup_comp_file((_fd)*typecheck(s32, _fd), _ufile) -ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file, - const char __user *buf, - int in_len, int out_len) +static int ib_uverbs_get_context(struct uverbs_attr_bundle *attrs) { + struct ib_uverbs_file *file = attrs->ufile; struct ib_uverbs_get_context cmd; struct ib_uverbs_get_context_resp resp; - struct ib_udata udata; struct ib_ucontext *ucontext; struct file *filp; struct ib_rdmacg_object cg_obj; struct ib_device *ib_dev; int ret; - if (out_len < sizeof resp) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; mutex_lock(&file->ucontext_lock); ib_dev = srcu_dereference(file->device->ib_dev, @@ -97,16 +216,11 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file, goto err; } - ib_uverbs_init_udata(&udata, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + sizeof(resp), - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - sizeof(resp)); - ret = ib_rdmacg_try_charge(&cg_obj, ib_dev, RDMACG_RESOURCE_HCA_HANDLE); if (ret) goto err; - ucontext = ib_dev->alloc_ucontext(ib_dev, &udata); + ucontext = ib_dev->ops.alloc_ucontext(ib_dev, &attrs->driver_udata); if (IS_ERR(ucontext)) { ret = PTR_ERR(ucontext); goto err_alloc; @@ -141,13 +255,15 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file, goto err_fd; } - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { - ret = -EFAULT; + ret = uverbs_response(attrs, &resp, sizeof(resp)); + if (ret) goto err_file; - } fd_install(resp.async_fd, filp); + ucontext->res.type = RDMA_RESTRACK_CTX; + rdma_restrack_uadd(&ucontext->res); + /* * Make sure that ib_uverbs_get_ucontext() sees the pointer update * only after all writes to setup the ucontext have completed @@ -156,7 +272,7 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file, mutex_unlock(&file->ucontext_lock); - return in_len; + return 0; err_file: ib_uverbs_free_async_event_file(file); @@ -166,7 +282,7 @@ err_fd: put_unused_fd(resp.async_fd); err_free: - ib_dev->dealloc_ucontext(ucontext); + ib_dev->ops.dealloc_ucontext(ucontext); err_alloc: ib_rdmacg_uncharge(&cg_obj, ib_dev, RDMACG_RESOURCE_HCA_HANDLE); @@ -224,57 +340,28 @@ static void copy_query_dev_fields(struct ib_ucontext *ucontext, resp->phys_port_cnt = ib_dev->phys_port_cnt; } -ssize_t ib_uverbs_query_device(struct ib_uverbs_file *file, - const char __user *buf, - int in_len, int out_len) +static int ib_uverbs_query_device(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_query_device cmd; struct ib_uverbs_query_device_resp resp; struct ib_ucontext *ucontext; + int ret; - ucontext = ib_uverbs_get_ucontext(file); + ucontext = ib_uverbs_get_ucontext(attrs); if (IS_ERR(ucontext)) return PTR_ERR(ucontext); - if (out_len < sizeof resp) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; memset(&resp, 0, sizeof resp); copy_query_dev_fields(ucontext, &resp, &ucontext->device->attrs); - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) - return -EFAULT; - - return in_len; -} - -/* - * ib_uverbs_query_port_resp.port_cap_flags started out as just a copy of the - * PortInfo CapabilityMask, but was extended with unique bits. - */ -static u32 make_port_cap_flags(const struct ib_port_attr *attr) -{ - u32 res; - - /* All IBA CapabilityMask bits are passed through here, except bit 26, - * which is overridden with IP_BASED_GIDS. This is due to a historical - * mistake in the implementation of IP_BASED_GIDS. Otherwise all other - * bits match the IBA definition across all kernel versions. - */ - res = attr->port_cap_flags & ~(u32)IB_UVERBS_PCF_IP_BASED_GIDS; - - if (attr->ip_gids) - res |= IB_UVERBS_PCF_IP_BASED_GIDS; - - return res; + return uverbs_response(attrs, &resp, sizeof(resp)); } -ssize_t ib_uverbs_query_port(struct ib_uverbs_file *file, - const char __user *buf, - int in_len, int out_len) +static int ib_uverbs_query_port(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_query_port cmd; struct ib_uverbs_query_port_resp resp; @@ -283,88 +370,43 @@ ssize_t ib_uverbs_query_port(struct ib_uverbs_file *file, struct ib_ucontext *ucontext; struct ib_device *ib_dev; - ucontext = ib_uverbs_get_ucontext(file); + ucontext = ib_uverbs_get_ucontext(attrs); if (IS_ERR(ucontext)) return PTR_ERR(ucontext); ib_dev = ucontext->device; - if (out_len < sizeof resp) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; ret = ib_query_port(ib_dev, cmd.port_num, &attr); if (ret) return ret; memset(&resp, 0, sizeof resp); + copy_port_attr_to_resp(&attr, &resp, ib_dev, cmd.port_num); - resp.state = attr.state; - resp.max_mtu = attr.max_mtu; - resp.active_mtu = attr.active_mtu; - resp.gid_tbl_len = attr.gid_tbl_len; - resp.port_cap_flags = make_port_cap_flags(&attr); - resp.max_msg_sz = attr.max_msg_sz; - resp.bad_pkey_cntr = attr.bad_pkey_cntr; - resp.qkey_viol_cntr = attr.qkey_viol_cntr; - resp.pkey_tbl_len = attr.pkey_tbl_len; - - if (rdma_is_grh_required(ib_dev, cmd.port_num)) - resp.flags |= IB_UVERBS_QPF_GRH_REQUIRED; - - if (rdma_cap_opa_ah(ib_dev, cmd.port_num)) { - resp.lid = OPA_TO_IB_UCAST_LID(attr.lid); - resp.sm_lid = OPA_TO_IB_UCAST_LID(attr.sm_lid); - } else { - resp.lid = ib_lid_cpu16(attr.lid); - resp.sm_lid = ib_lid_cpu16(attr.sm_lid); - } - resp.lmc = attr.lmc; - resp.max_vl_num = attr.max_vl_num; - resp.sm_sl = attr.sm_sl; - resp.subnet_timeout = attr.subnet_timeout; - resp.init_type_reply = attr.init_type_reply; - resp.active_width = attr.active_width; - resp.active_speed = attr.active_speed; - resp.phys_state = attr.phys_state; - resp.link_layer = rdma_port_get_link_layer(ib_dev, - cmd.port_num); - - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) - return -EFAULT; - - return in_len; + return uverbs_response(attrs, &resp, sizeof(resp)); } -ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file, - const char __user *buf, - int in_len, int out_len) +static int ib_uverbs_alloc_pd(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_alloc_pd cmd; struct ib_uverbs_alloc_pd_resp resp; - struct ib_udata udata; struct ib_uobject *uobj; struct ib_pd *pd; int ret; struct ib_device *ib_dev; - if (out_len < sizeof resp) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; - - ib_uverbs_init_udata(&udata, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + sizeof(resp), - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - sizeof(resp)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - uobj = uobj_alloc(UVERBS_OBJECT_PD, file, &ib_dev); + uobj = uobj_alloc(UVERBS_OBJECT_PD, attrs, &ib_dev); if (IS_ERR(uobj)) return PTR_ERR(uobj); - pd = ib_dev->alloc_pd(ib_dev, uobj->context, &udata); + pd = ib_dev->ops.alloc_pd(ib_dev, uobj->context, &attrs->driver_udata); if (IS_ERR(pd)) { ret = PTR_ERR(pd); goto err; @@ -379,14 +421,13 @@ ssize_t ib_uverbs_alloc_pd(struct ib_uverbs_file *file, memset(&resp, 0, sizeof resp); resp.pd_handle = uobj->id; pd->res.type = RDMA_RESTRACK_PD; - rdma_restrack_add(&pd->res); + rdma_restrack_uadd(&pd->res); - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { - ret = -EFAULT; + ret = uverbs_response(attrs, &resp, sizeof(resp)); + if (ret) goto err_copy; - } - return uobj_alloc_commit(uobj, in_len); + return uobj_alloc_commit(uobj); err_copy: ib_dealloc_pd(pd); @@ -396,17 +437,16 @@ err: return ret; } -ssize_t ib_uverbs_dealloc_pd(struct ib_uverbs_file *file, - const char __user *buf, - int in_len, int out_len) +static int ib_uverbs_dealloc_pd(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_dealloc_pd cmd; + int ret; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - return uobj_perform_destroy(UVERBS_OBJECT_PD, cmd.pd_handle, file, - in_len); + return uobj_perform_destroy(UVERBS_OBJECT_PD, cmd.pd_handle, attrs); } struct xrcd_table_entry { @@ -494,13 +534,11 @@ static void xrcd_table_delete(struct ib_uverbs_device *dev, } } -ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_open_xrcd(struct uverbs_attr_bundle *attrs) { + struct ib_uverbs_device *ibudev = attrs->ufile->device; struct ib_uverbs_open_xrcd cmd; struct ib_uverbs_open_xrcd_resp resp; - struct ib_udata udata; struct ib_uxrcd_object *obj; struct ib_xrcd *xrcd = NULL; struct fd f = {NULL, 0}; @@ -509,18 +547,11 @@ ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file, int new_xrcd = 0; struct ib_device *ib_dev; - if (out_len < sizeof resp) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; - - ib_uverbs_init_udata(&udata, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + sizeof(resp), - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - sizeof(resp)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - mutex_lock(&file->device->xrcd_tree_mutex); + mutex_lock(&ibudev->xrcd_tree_mutex); if (cmd.fd != -1) { /* search for file descriptor */ @@ -531,7 +562,7 @@ ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file, } inode = file_inode(f.file); - xrcd = find_xrcd(file->device, inode); + xrcd = find_xrcd(ibudev, inode); if (!xrcd && !(cmd.oflags & O_CREAT)) { /* no file descriptor. Need CREATE flag */ ret = -EAGAIN; @@ -544,7 +575,7 @@ ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file, } } - obj = (struct ib_uxrcd_object *)uobj_alloc(UVERBS_OBJECT_XRCD, file, + obj = (struct ib_uxrcd_object *)uobj_alloc(UVERBS_OBJECT_XRCD, attrs, &ib_dev); if (IS_ERR(obj)) { ret = PTR_ERR(obj); @@ -552,7 +583,8 @@ ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file, } if (!xrcd) { - xrcd = ib_dev->alloc_xrcd(ib_dev, obj->uobject.context, &udata); + xrcd = ib_dev->ops.alloc_xrcd(ib_dev, obj->uobject.context, + &attrs->driver_udata); if (IS_ERR(xrcd)) { ret = PTR_ERR(xrcd); goto err; @@ -574,29 +606,28 @@ ssize_t ib_uverbs_open_xrcd(struct ib_uverbs_file *file, if (inode) { if (new_xrcd) { /* create new inode/xrcd table entry */ - ret = xrcd_table_insert(file->device, inode, xrcd); + ret = xrcd_table_insert(ibudev, inode, xrcd); if (ret) goto err_dealloc_xrcd; } atomic_inc(&xrcd->usecnt); } - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { - ret = -EFAULT; + ret = uverbs_response(attrs, &resp, sizeof(resp)); + if (ret) goto err_copy; - } if (f.file) fdput(f); - mutex_unlock(&file->device->xrcd_tree_mutex); + mutex_unlock(&ibudev->xrcd_tree_mutex); - return uobj_alloc_commit(&obj->uobject, in_len); + return uobj_alloc_commit(&obj->uobject); err_copy: if (inode) { if (new_xrcd) - xrcd_table_delete(file->device, inode); + xrcd_table_delete(ibudev, inode); atomic_dec(&xrcd->usecnt); } @@ -610,22 +641,21 @@ err_tree_mutex_unlock: if (f.file) fdput(f); - mutex_unlock(&file->device->xrcd_tree_mutex); + mutex_unlock(&ibudev->xrcd_tree_mutex); return ret; } -ssize_t ib_uverbs_close_xrcd(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_close_xrcd(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_close_xrcd cmd; + int ret; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - return uobj_perform_destroy(UVERBS_OBJECT_XRCD, cmd.xrcd_handle, file, - in_len); + return uobj_perform_destroy(UVERBS_OBJECT_XRCD, cmd.xrcd_handle, attrs); } int ib_uverbs_dealloc_xrcd(struct ib_uobject *uobject, @@ -653,29 +683,19 @@ int ib_uverbs_dealloc_xrcd(struct ib_uobject *uobject, return ret; } -ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_reg_mr(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_reg_mr cmd; struct ib_uverbs_reg_mr_resp resp; - struct ib_udata udata; struct ib_uobject *uobj; struct ib_pd *pd; struct ib_mr *mr; int ret; struct ib_device *ib_dev; - if (out_len < sizeof resp) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; - - ib_uverbs_init_udata(&udata, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + sizeof(resp), - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - sizeof(resp)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; if ((cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK)) return -EINVAL; @@ -684,11 +704,11 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file, if (ret) return ret; - uobj = uobj_alloc(UVERBS_OBJECT_MR, file, &ib_dev); + uobj = uobj_alloc(UVERBS_OBJECT_MR, attrs, &ib_dev); if (IS_ERR(uobj)) return PTR_ERR(uobj); - pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, file); + pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs); if (!pd) { ret = -EINVAL; goto err_free; @@ -703,8 +723,9 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file, } } - mr = pd->device->reg_user_mr(pd, cmd.start, cmd.length, cmd.hca_va, - cmd.access_flags, &udata); + mr = pd->device->ops.reg_user_mr(pd, cmd.start, cmd.length, cmd.hca_va, + cmd.access_flags, + &attrs->driver_udata); if (IS_ERR(mr)) { ret = PTR_ERR(mr); goto err_put; @@ -716,7 +737,7 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file, mr->uobject = uobj; atomic_inc(&pd->usecnt); mr->res.type = RDMA_RESTRACK_MR; - rdma_restrack_add(&mr->res); + rdma_restrack_uadd(&mr->res); uobj->object = mr; @@ -725,14 +746,13 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file, resp.rkey = mr->rkey; resp.mr_handle = uobj->id; - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { - ret = -EFAULT; + ret = uverbs_response(attrs, &resp, sizeof(resp)); + if (ret) goto err_copy; - } uobj_put_obj_read(pd); - return uobj_alloc_commit(uobj, in_len); + return uobj_alloc_commit(uobj); err_copy: ib_dereg_mr(mr); @@ -745,29 +765,19 @@ err_free: return ret; } -ssize_t ib_uverbs_rereg_mr(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_rereg_mr(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_rereg_mr cmd; struct ib_uverbs_rereg_mr_resp resp; - struct ib_udata udata; struct ib_pd *pd = NULL; struct ib_mr *mr; struct ib_pd *old_pd; int ret; struct ib_uobject *uobj; - if (out_len < sizeof(resp)) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof(cmd))) - return -EFAULT; - - ib_uverbs_init_udata(&udata, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + sizeof(resp), - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - sizeof(resp)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; if (cmd.flags & ~IB_MR_REREG_SUPPORTED || !cmd.flags) return -EINVAL; @@ -777,7 +787,7 @@ ssize_t ib_uverbs_rereg_mr(struct ib_uverbs_file *file, (cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK))) return -EINVAL; - uobj = uobj_get_write(UVERBS_OBJECT_MR, cmd.mr_handle, file); + uobj = uobj_get_write(UVERBS_OBJECT_MR, cmd.mr_handle, attrs); if (IS_ERR(uobj)) return PTR_ERR(uobj); @@ -796,7 +806,7 @@ ssize_t ib_uverbs_rereg_mr(struct ib_uverbs_file *file, if (cmd.flags & IB_MR_REREG_PD) { pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, - file); + attrs); if (!pd) { ret = -EINVAL; goto put_uobjs; @@ -804,9 +814,10 @@ ssize_t ib_uverbs_rereg_mr(struct ib_uverbs_file *file, } old_pd = mr->pd; - ret = mr->device->rereg_user_mr(mr, cmd.flags, cmd.start, - cmd.length, cmd.hca_va, - cmd.access_flags, pd, &udata); + ret = mr->device->ops.rereg_user_mr(mr, cmd.flags, cmd.start, + cmd.length, cmd.hca_va, + cmd.access_flags, pd, + &attrs->driver_udata); if (!ret) { if (cmd.flags & IB_MR_REREG_PD) { atomic_inc(&pd->usecnt); @@ -821,10 +832,7 @@ ssize_t ib_uverbs_rereg_mr(struct ib_uverbs_file *file, resp.lkey = mr->lkey; resp.rkey = mr->rkey; - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof(resp))) - ret = -EFAULT; - else - ret = in_len; + ret = uverbs_response(attrs, &resp, sizeof(resp)); put_uobj_pd: if (cmd.flags & IB_MR_REREG_PD) @@ -836,54 +844,43 @@ put_uobjs: return ret; } -ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_dereg_mr(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_dereg_mr cmd; + int ret; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - return uobj_perform_destroy(UVERBS_OBJECT_MR, cmd.mr_handle, file, - in_len); + return uobj_perform_destroy(UVERBS_OBJECT_MR, cmd.mr_handle, attrs); } -ssize_t ib_uverbs_alloc_mw(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_alloc_mw(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_alloc_mw cmd; struct ib_uverbs_alloc_mw_resp resp; struct ib_uobject *uobj; struct ib_pd *pd; struct ib_mw *mw; - struct ib_udata udata; int ret; struct ib_device *ib_dev; - if (out_len < sizeof(resp)) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof(cmd))) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - uobj = uobj_alloc(UVERBS_OBJECT_MW, file, &ib_dev); + uobj = uobj_alloc(UVERBS_OBJECT_MW, attrs, &ib_dev); if (IS_ERR(uobj)) return PTR_ERR(uobj); - pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, file); + pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs); if (!pd) { ret = -EINVAL; goto err_free; } - ib_uverbs_init_udata(&udata, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + sizeof(resp), - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - sizeof(resp)); - - mw = pd->device->alloc_mw(pd, cmd.mw_type, &udata); + mw = pd->device->ops.alloc_mw(pd, cmd.mw_type, &attrs->driver_udata); if (IS_ERR(mw)) { ret = PTR_ERR(mw); goto err_put; @@ -900,13 +897,12 @@ ssize_t ib_uverbs_alloc_mw(struct ib_uverbs_file *file, resp.rkey = mw->rkey; resp.mw_handle = uobj->id; - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof(resp))) { - ret = -EFAULT; + ret = uverbs_response(attrs, &resp, sizeof(resp)); + if (ret) goto err_copy; - } uobj_put_obj_read(pd); - return uobj_alloc_commit(uobj, in_len); + return uobj_alloc_commit(uobj); err_copy: uverbs_dealloc_mw(mw); @@ -917,36 +913,32 @@ err_free: return ret; } -ssize_t ib_uverbs_dealloc_mw(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_dealloc_mw(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_dealloc_mw cmd; + int ret; - if (copy_from_user(&cmd, buf, sizeof(cmd))) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - return uobj_perform_destroy(UVERBS_OBJECT_MW, cmd.mw_handle, file, - in_len); + return uobj_perform_destroy(UVERBS_OBJECT_MW, cmd.mw_handle, attrs); } -ssize_t ib_uverbs_create_comp_channel(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_create_comp_channel(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_create_comp_channel cmd; struct ib_uverbs_create_comp_channel_resp resp; struct ib_uobject *uobj; struct ib_uverbs_completion_event_file *ev_file; struct ib_device *ib_dev; + int ret; - if (out_len < sizeof resp) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - uobj = uobj_alloc(UVERBS_OBJECT_COMP_CHANNEL, file, &ib_dev); + uobj = uobj_alloc(UVERBS_OBJECT_COMP_CHANNEL, attrs, &ib_dev); if (IS_ERR(uobj)) return PTR_ERR(uobj); @@ -956,25 +948,17 @@ ssize_t ib_uverbs_create_comp_channel(struct ib_uverbs_file *file, uobj); ib_uverbs_init_event_queue(&ev_file->ev_queue); - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { + ret = uverbs_response(attrs, &resp, sizeof(resp)); + if (ret) { uobj_alloc_abort(uobj); - return -EFAULT; + return ret; } - return uobj_alloc_commit(uobj, in_len); + return uobj_alloc_commit(uobj); } -static struct ib_ucq_object *create_cq(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw, - struct ib_uverbs_ex_create_cq *cmd, - size_t cmd_sz, - int (*cb)(struct ib_uverbs_file *file, - struct ib_ucq_object *obj, - struct ib_uverbs_ex_create_cq_resp *resp, - struct ib_udata *udata, - void *context), - void *context) +static struct ib_ucq_object *create_cq(struct uverbs_attr_bundle *attrs, + struct ib_uverbs_ex_create_cq *cmd) { struct ib_ucq_object *obj; struct ib_uverbs_completion_event_file *ev_file = NULL; @@ -984,21 +968,16 @@ static struct ib_ucq_object *create_cq(struct ib_uverbs_file *file, struct ib_cq_init_attr attr = {}; struct ib_device *ib_dev; - if (cmd->comp_vector >= file->device->num_comp_vectors) + if (cmd->comp_vector >= attrs->ufile->device->num_comp_vectors) return ERR_PTR(-EINVAL); - obj = (struct ib_ucq_object *)uobj_alloc(UVERBS_OBJECT_CQ, file, + obj = (struct ib_ucq_object *)uobj_alloc(UVERBS_OBJECT_CQ, attrs, &ib_dev); if (IS_ERR(obj)) return obj; - if (!ib_dev->create_cq) { - ret = -EOPNOTSUPP; - goto err; - } - if (cmd->comp_channel >= 0) { - ev_file = ib_uverbs_lookup_comp_file(cmd->comp_channel, file); + ev_file = ib_uverbs_lookup_comp_file(cmd->comp_channel, attrs); if (IS_ERR(ev_file)) { ret = PTR_ERR(ev_file); goto err; @@ -1013,11 +992,10 @@ static struct ib_ucq_object *create_cq(struct ib_uverbs_file *file, attr.cqe = cmd->cqe; attr.comp_vector = cmd->comp_vector; + attr.flags = cmd->flags; - if (cmd_sz > offsetof(typeof(*cmd), flags) + sizeof(cmd->flags)) - attr.flags = cmd->flags; - - cq = ib_dev->create_cq(ib_dev, &attr, obj->uobject.context, uhw); + cq = ib_dev->ops.create_cq(ib_dev, &attr, obj->uobject.context, + &attrs->driver_udata); if (IS_ERR(cq)) { ret = PTR_ERR(cq); goto err_file; @@ -1034,18 +1012,16 @@ static struct ib_ucq_object *create_cq(struct ib_uverbs_file *file, memset(&resp, 0, sizeof resp); resp.base.cq_handle = obj->uobject.id; resp.base.cqe = cq->cqe; - - resp.response_length = offsetof(typeof(resp), response_length) + - sizeof(resp.response_length); + resp.response_length = uverbs_response_length(attrs, sizeof(resp)); cq->res.type = RDMA_RESTRACK_CQ; - rdma_restrack_add(&cq->res); + rdma_restrack_uadd(&cq->res); - ret = cb(file, obj, &resp, ucore, context); + ret = uverbs_response(attrs, &resp, sizeof(resp)); if (ret) goto err_cb; - ret = uobj_alloc_commit(&obj->uobject, 0); + ret = uobj_alloc_commit(&obj->uobject); if (ret) return ERR_PTR(ret); return obj; @@ -1055,7 +1031,7 @@ err_cb: err_file: if (ev_file) - ib_uverbs_release_ucq(file, ev_file, obj); + ib_uverbs_release_ucq(attrs->ufile, ev_file, obj); err: uobj_alloc_abort(&obj->uobject); @@ -1063,41 +1039,16 @@ err: return ERR_PTR(ret); } -static int ib_uverbs_create_cq_cb(struct ib_uverbs_file *file, - struct ib_ucq_object *obj, - struct ib_uverbs_ex_create_cq_resp *resp, - struct ib_udata *ucore, void *context) -{ - if (ib_copy_to_udata(ucore, &resp->base, sizeof(resp->base))) - return -EFAULT; - - return 0; -} - -ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_create_cq(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_create_cq cmd; struct ib_uverbs_ex_create_cq cmd_ex; - struct ib_uverbs_create_cq_resp resp; - struct ib_udata ucore; - struct ib_udata uhw; struct ib_ucq_object *obj; + int ret; - if (out_len < sizeof(resp)) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof(cmd))) - return -EFAULT; - - ib_uverbs_init_udata(&ucore, buf, u64_to_user_ptr(cmd.response), - sizeof(cmd), sizeof(resp)); - - ib_uverbs_init_udata(&uhw, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + sizeof(resp), - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - sizeof(resp)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; memset(&cmd_ex, 0, sizeof(cmd_ex)); cmd_ex.user_handle = cmd.user_handle; @@ -1105,43 +1056,19 @@ ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file, cmd_ex.comp_vector = cmd.comp_vector; cmd_ex.comp_channel = cmd.comp_channel; - obj = create_cq(file, &ucore, &uhw, &cmd_ex, - offsetof(typeof(cmd_ex), comp_channel) + - sizeof(cmd.comp_channel), ib_uverbs_create_cq_cb, - NULL); - - if (IS_ERR(obj)) - return PTR_ERR(obj); - - return in_len; -} - -static int ib_uverbs_ex_create_cq_cb(struct ib_uverbs_file *file, - struct ib_ucq_object *obj, - struct ib_uverbs_ex_create_cq_resp *resp, - struct ib_udata *ucore, void *context) -{ - if (ib_copy_to_udata(ucore, resp, resp->response_length)) - return -EFAULT; - - return 0; + obj = create_cq(attrs, &cmd_ex); + return PTR_ERR_OR_ZERO(obj); } -int ib_uverbs_ex_create_cq(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) +static int ib_uverbs_ex_create_cq(struct uverbs_attr_bundle *attrs) { - struct ib_uverbs_ex_create_cq_resp resp; struct ib_uverbs_ex_create_cq cmd; struct ib_ucq_object *obj; - int err; - - if (ucore->inlen < sizeof(cmd)) - return -EINVAL; + int ret; - err = ib_copy_from_udata(&cmd, ucore, sizeof(cmd)); - if (err) - return err; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; if (cmd.comp_mask) return -EINVAL; @@ -1149,52 +1076,36 @@ int ib_uverbs_ex_create_cq(struct ib_uverbs_file *file, if (cmd.reserved) return -EINVAL; - if (ucore->outlen < (offsetof(typeof(resp), response_length) + - sizeof(resp.response_length))) - return -ENOSPC; - - obj = create_cq(file, ucore, uhw, &cmd, - min(ucore->inlen, sizeof(cmd)), - ib_uverbs_ex_create_cq_cb, NULL); - + obj = create_cq(attrs, &cmd); return PTR_ERR_OR_ZERO(obj); } -ssize_t ib_uverbs_resize_cq(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_resize_cq(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_resize_cq cmd; struct ib_uverbs_resize_cq_resp resp = {}; - struct ib_udata udata; struct ib_cq *cq; int ret = -EINVAL; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; - - ib_uverbs_init_udata(&udata, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + sizeof(resp), - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - sizeof(resp)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, file); + cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs); if (!cq) return -EINVAL; - ret = cq->device->resize_cq(cq, cmd.cqe, &udata); + ret = cq->device->ops.resize_cq(cq, cmd.cqe, &attrs->driver_udata); if (ret) goto out; resp.cqe = cq->cqe; - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp.cqe)) - ret = -EFAULT; - + ret = uverbs_response(attrs, &resp, sizeof(resp)); out: uobj_put_obj_read(cq); - return ret ? ret : in_len; + return ret; } static int copy_wc_to_user(struct ib_device *ib_dev, void __user *dest, @@ -1227,9 +1138,7 @@ static int copy_wc_to_user(struct ib_device *ib_dev, void __user *dest, return 0; } -ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_poll_cq(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_poll_cq cmd; struct ib_uverbs_poll_cq_resp resp; @@ -1239,15 +1148,16 @@ ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file, struct ib_wc wc; int ret; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, file); + cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs); if (!cq) return -EINVAL; /* we copy a struct ib_uverbs_poll_cq_resp to user space */ - header_ptr = u64_to_user_ptr(cmd.response); + header_ptr = attrs->ucore.outbuf; data_ptr = header_ptr + sizeof resp; memset(&resp, 0, sizeof resp); @@ -1271,24 +1181,24 @@ ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file, goto out_put; } - ret = in_len; + ret = 0; out_put: uobj_put_obj_read(cq); return ret; } -ssize_t ib_uverbs_req_notify_cq(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_req_notify_cq(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_req_notify_cq cmd; struct ib_cq *cq; + int ret; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, file); + cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs); if (!cq) return -EINVAL; @@ -1297,22 +1207,22 @@ ssize_t ib_uverbs_req_notify_cq(struct ib_uverbs_file *file, uobj_put_obj_read(cq); - return in_len; + return 0; } -ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_destroy_cq(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_destroy_cq cmd; struct ib_uverbs_destroy_cq_resp resp; struct ib_uobject *uobj; struct ib_ucq_object *obj; + int ret; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - uobj = uobj_get_destroy(UVERBS_OBJECT_CQ, cmd.cq_handle, file); + uobj = uobj_get_destroy(UVERBS_OBJECT_CQ, cmd.cq_handle, attrs); if (IS_ERR(uobj)) return PTR_ERR(uobj); @@ -1323,21 +1233,11 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file, uobj_put_destroy(uobj); - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) - return -EFAULT; - - return in_len; + return uverbs_response(attrs, &resp, sizeof(resp)); } -static int create_qp(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw, - struct ib_uverbs_ex_create_qp *cmd, - size_t cmd_sz, - int (*cb)(struct ib_uverbs_file *file, - struct ib_uverbs_ex_create_qp_resp *resp, - struct ib_udata *udata), - void *context) +static int create_qp(struct uverbs_attr_bundle *attrs, + struct ib_uverbs_ex_create_qp *cmd) { struct ib_uqp_object *obj; struct ib_device *device; @@ -1347,7 +1247,6 @@ static int create_qp(struct ib_uverbs_file *file, struct ib_cq *scq = NULL, *rcq = NULL; struct ib_srq *srq = NULL; struct ib_qp *qp; - char *buf; struct ib_qp_init_attr attr = {}; struct ib_uverbs_ex_create_qp_resp resp; int ret; @@ -1358,7 +1257,7 @@ static int create_qp(struct ib_uverbs_file *file, if (cmd->qp_type == IB_QPT_RAW_PACKET && !capable(CAP_NET_RAW)) return -EPERM; - obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, file, + obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, attrs, &ib_dev); if (IS_ERR(obj)) return PTR_ERR(obj); @@ -1366,12 +1265,10 @@ static int create_qp(struct ib_uverbs_file *file, obj->uevent.uobject.user_handle = cmd->user_handle; mutex_init(&obj->mcast_lock); - if (cmd_sz >= offsetof(typeof(*cmd), rwq_ind_tbl_handle) + - sizeof(cmd->rwq_ind_tbl_handle) && - (cmd->comp_mask & IB_UVERBS_CREATE_QP_MASK_IND_TABLE)) { + if (cmd->comp_mask & IB_UVERBS_CREATE_QP_MASK_IND_TABLE) { ind_tbl = uobj_get_obj_read(rwq_ind_table, UVERBS_OBJECT_RWQ_IND_TBL, - cmd->rwq_ind_tbl_handle, file); + cmd->rwq_ind_tbl_handle, attrs); if (!ind_tbl) { ret = -EINVAL; goto err_put; @@ -1380,13 +1277,6 @@ static int create_qp(struct ib_uverbs_file *file, attr.rwq_ind_tbl = ind_tbl; } - if (cmd_sz > sizeof(*cmd) && - !ib_is_udata_cleared(ucore, sizeof(*cmd), - cmd_sz - sizeof(*cmd))) { - ret = -EOPNOTSUPP; - goto err_put; - } - if (ind_tbl && (cmd->max_recv_wr || cmd->max_recv_sge || cmd->is_srq)) { ret = -EINVAL; goto err_put; @@ -1397,7 +1287,7 @@ static int create_qp(struct ib_uverbs_file *file, if (cmd->qp_type == IB_QPT_XRC_TGT) { xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd->pd_handle, - file); + attrs); if (IS_ERR(xrcd_uobj)) { ret = -EINVAL; @@ -1417,7 +1307,7 @@ static int create_qp(struct ib_uverbs_file *file, } else { if (cmd->is_srq) { srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, - cmd->srq_handle, file); + cmd->srq_handle, attrs); if (!srq || srq->srq_type == IB_SRQT_XRC) { ret = -EINVAL; goto err_put; @@ -1428,7 +1318,7 @@ static int create_qp(struct ib_uverbs_file *file, if (cmd->recv_cq_handle != cmd->send_cq_handle) { rcq = uobj_get_obj_read( cq, UVERBS_OBJECT_CQ, - cmd->recv_cq_handle, file); + cmd->recv_cq_handle, attrs); if (!rcq) { ret = -EINVAL; goto err_put; @@ -1439,11 +1329,11 @@ static int create_qp(struct ib_uverbs_file *file, if (has_sq) scq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, - cmd->send_cq_handle, file); + cmd->send_cq_handle, attrs); if (!ind_tbl) rcq = rcq ?: scq; pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd->pd_handle, - file); + attrs); if (!pd || (!scq && has_sq)) { ret = -EINVAL; goto err_put; @@ -1453,7 +1343,7 @@ static int create_qp(struct ib_uverbs_file *file, } attr.event_handler = ib_uverbs_qp_event_handler; - attr.qp_context = file; + attr.qp_context = attrs->ufile; attr.send_cq = scq; attr.recv_cq = rcq; attr.srq = srq; @@ -1473,10 +1363,7 @@ static int create_qp(struct ib_uverbs_file *file, INIT_LIST_HEAD(&obj->uevent.event_list); INIT_LIST_HEAD(&obj->mcast_list); - if (cmd_sz >= offsetof(typeof(*cmd), create_flags) + - sizeof(cmd->create_flags)) - attr.create_flags = cmd->create_flags; - + attr.create_flags = cmd->create_flags; if (attr.create_flags & ~(IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK | IB_QP_CREATE_CROSS_CHANNEL | IB_QP_CREATE_MANAGED_SEND | @@ -1498,18 +1385,10 @@ static int create_qp(struct ib_uverbs_file *file, attr.source_qpn = cmd->source_qpn; } - buf = (void *)cmd + sizeof(*cmd); - if (cmd_sz > sizeof(*cmd)) - if (!(buf[0] == 0 && !memcmp(buf, buf + 1, - cmd_sz - sizeof(*cmd) - 1))) { - ret = -EINVAL; - goto err_put; - } - if (cmd->qp_type == IB_QPT_XRC_TGT) qp = ib_create_qp(pd, &attr); else - qp = _ib_create_qp(device, pd, &attr, uhw, + qp = _ib_create_qp(device, pd, &attr, &attrs->driver_udata, &obj->uevent.uobject); if (IS_ERR(qp)) { @@ -1557,11 +1436,9 @@ static int create_qp(struct ib_uverbs_file *file, resp.base.max_recv_wr = attr.cap.max_recv_wr; resp.base.max_send_wr = attr.cap.max_send_wr; resp.base.max_inline_data = attr.cap.max_inline_data; + resp.response_length = uverbs_response_length(attrs, sizeof(resp)); - resp.response_length = offsetof(typeof(resp), response_length) + - sizeof(resp.response_length); - - ret = cb(file, &resp, ucore); + ret = uverbs_response(attrs, &resp, sizeof(resp)); if (ret) goto err_cb; @@ -1583,7 +1460,7 @@ static int create_qp(struct ib_uverbs_file *file, if (ind_tbl) uobj_put_obj_read(ind_tbl); - return uobj_alloc_commit(&obj->uevent.uobject, 0); + return uobj_alloc_commit(&obj->uevent.uobject); err_cb: ib_destroy_qp(qp); @@ -1605,39 +1482,15 @@ err_put: return ret; } -static int ib_uverbs_create_qp_cb(struct ib_uverbs_file *file, - struct ib_uverbs_ex_create_qp_resp *resp, - struct ib_udata *ucore) -{ - if (ib_copy_to_udata(ucore, &resp->base, sizeof(resp->base))) - return -EFAULT; - - return 0; -} - -ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_create_qp(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_create_qp cmd; struct ib_uverbs_ex_create_qp cmd_ex; - struct ib_udata ucore; - struct ib_udata uhw; - ssize_t resp_size = sizeof(struct ib_uverbs_create_qp_resp); - int err; - - if (out_len < resp_size) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof(cmd))) - return -EFAULT; + int ret; - ib_uverbs_init_udata(&ucore, buf, u64_to_user_ptr(cmd.response), - sizeof(cmd), resp_size); - ib_uverbs_init_udata(&uhw, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + resp_size, - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - resp_size); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; memset(&cmd_ex, 0, sizeof(cmd_ex)); cmd_ex.user_handle = cmd.user_handle; @@ -1654,42 +1507,17 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file, cmd_ex.qp_type = cmd.qp_type; cmd_ex.is_srq = cmd.is_srq; - err = create_qp(file, &ucore, &uhw, &cmd_ex, - offsetof(typeof(cmd_ex), is_srq) + - sizeof(cmd.is_srq), ib_uverbs_create_qp_cb, - NULL); - - if (err) - return err; - - return in_len; + return create_qp(attrs, &cmd_ex); } -static int ib_uverbs_ex_create_qp_cb(struct ib_uverbs_file *file, - struct ib_uverbs_ex_create_qp_resp *resp, - struct ib_udata *ucore) +static int ib_uverbs_ex_create_qp(struct uverbs_attr_bundle *attrs) { - if (ib_copy_to_udata(ucore, resp, resp->response_length)) - return -EFAULT; - - return 0; -} - -int ib_uverbs_ex_create_qp(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) -{ - struct ib_uverbs_ex_create_qp_resp resp; - struct ib_uverbs_ex_create_qp cmd = {0}; - int err; - - if (ucore->inlen < (offsetof(typeof(cmd), comp_mask) + - sizeof(cmd.comp_mask))) - return -EINVAL; + struct ib_uverbs_ex_create_qp cmd; + int ret; - err = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); - if (err) - return err; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; if (cmd.comp_mask & ~IB_UVERBS_CREATE_QP_SUP_COMP_MASK) return -EINVAL; @@ -1697,26 +1525,13 @@ int ib_uverbs_ex_create_qp(struct ib_uverbs_file *file, if (cmd.reserved) return -EINVAL; - if (ucore->outlen < (offsetof(typeof(resp), response_length) + - sizeof(resp.response_length))) - return -ENOSPC; - - err = create_qp(file, ucore, uhw, &cmd, - min(ucore->inlen, sizeof(cmd)), - ib_uverbs_ex_create_qp_cb, NULL); - - if (err) - return err; - - return 0; + return create_qp(attrs, &cmd); } -ssize_t ib_uverbs_open_qp(struct ib_uverbs_file *file, - const char __user *buf, int in_len, int out_len) +static int ib_uverbs_open_qp(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_open_qp cmd; struct ib_uverbs_create_qp_resp resp; - struct ib_udata udata; struct ib_uqp_object *obj; struct ib_xrcd *xrcd; struct ib_uobject *uninitialized_var(xrcd_uobj); @@ -1725,23 +1540,16 @@ ssize_t ib_uverbs_open_qp(struct ib_uverbs_file *file, int ret; struct ib_device *ib_dev; - if (out_len < sizeof resp) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; - - ib_uverbs_init_udata(&udata, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + sizeof(resp), - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - sizeof(resp)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, file, + obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, attrs, &ib_dev); if (IS_ERR(obj)) return PTR_ERR(obj); - xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd.pd_handle, file); + xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd.pd_handle, attrs); if (IS_ERR(xrcd_uobj)) { ret = -EINVAL; goto err_put; @@ -1754,7 +1562,7 @@ ssize_t ib_uverbs_open_qp(struct ib_uverbs_file *file, } attr.event_handler = ib_uverbs_qp_event_handler; - attr.qp_context = file; + attr.qp_context = attrs->ufile; attr.qp_num = cmd.qpn; attr.qp_type = cmd.qp_type; @@ -1775,17 +1583,16 @@ ssize_t ib_uverbs_open_qp(struct ib_uverbs_file *file, resp.qpn = qp->qp_num; resp.qp_handle = obj->uevent.uobject.id; - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { - ret = -EFAULT; + ret = uverbs_response(attrs, &resp, sizeof(resp)); + if (ret) goto err_destroy; - } obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject); atomic_inc(&obj->uxrcd->refcnt); qp->uobject = &obj->uevent.uobject; uobj_put_read(xrcd_uobj); - return uobj_alloc_commit(&obj->uevent.uobject, in_len); + return uobj_alloc_commit(&obj->uevent.uobject); err_destroy: ib_destroy_qp(qp); @@ -1818,9 +1625,7 @@ static void copy_ah_attr_to_uverbs(struct ib_uverbs_qp_dest *uverb_attr, uverb_attr->port_num = rdma_ah_get_port_num(rdma_attr); } -ssize_t ib_uverbs_query_qp(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_query_qp(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_query_qp cmd; struct ib_uverbs_query_qp_resp resp; @@ -1829,8 +1634,9 @@ ssize_t ib_uverbs_query_qp(struct ib_uverbs_file *file, struct ib_qp_init_attr *init_attr; int ret; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; attr = kmalloc(sizeof *attr, GFP_KERNEL); init_attr = kmalloc(sizeof *init_attr, GFP_KERNEL); @@ -1839,7 +1645,7 @@ ssize_t ib_uverbs_query_qp(struct ib_uverbs_file *file, goto out; } - qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, file); + qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs); if (!qp) { ret = -EINVAL; goto out; @@ -1886,14 +1692,13 @@ ssize_t ib_uverbs_query_qp(struct ib_uverbs_file *file, resp.max_inline_data = init_attr->cap.max_inline_data; resp.sq_sig_all = init_attr->sq_sig_type == IB_SIGNAL_ALL_WR; - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) - ret = -EFAULT; + ret = uverbs_response(attrs, &resp, sizeof(resp)); out: kfree(attr); kfree(init_attr); - return ret ? ret : in_len; + return ret; } /* Remove ignored fields set in the attribute mask */ @@ -1933,8 +1738,8 @@ static void copy_ah_attr_from_uverbs(struct ib_device *dev, rdma_ah_set_make_grd(rdma_attr, false); } -static int modify_qp(struct ib_uverbs_file *file, - struct ib_uverbs_ex_modify_qp *cmd, struct ib_udata *udata) +static int modify_qp(struct uverbs_attr_bundle *attrs, + struct ib_uverbs_ex_modify_qp *cmd) { struct ib_qp_attr *attr; struct ib_qp *qp; @@ -1944,7 +1749,8 @@ static int modify_qp(struct ib_uverbs_file *file, if (!attr) return -ENOMEM; - qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd->base.qp_handle, file); + qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd->base.qp_handle, + attrs); if (!qp) { ret = -EINVAL; goto out; @@ -2081,7 +1887,7 @@ static int modify_qp(struct ib_uverbs_file *file, ret = ib_modify_qp_with_udata(qp, attr, modify_qp_mask(qp->qp_type, cmd->base.attr_mask), - udata); + &attrs->driver_udata); release_qp: uobj_put_obj_read(qp); @@ -2091,80 +1897,64 @@ out: return ret; } -ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_modify_qp(struct uverbs_attr_bundle *attrs) { - struct ib_uverbs_ex_modify_qp cmd = {}; - struct ib_udata udata; + struct ib_uverbs_ex_modify_qp cmd; int ret; - if (copy_from_user(&cmd.base, buf, sizeof(cmd.base))) - return -EFAULT; + ret = uverbs_request(attrs, &cmd.base, sizeof(cmd.base)); + if (ret) + return ret; if (cmd.base.attr_mask & ~((IB_USER_LEGACY_LAST_QP_ATTR_MASK << 1) - 1)) return -EOPNOTSUPP; - ib_uverbs_init_udata(&udata, buf + sizeof(cmd.base), NULL, - in_len - sizeof(cmd.base) - sizeof(struct ib_uverbs_cmd_hdr), - out_len); - - ret = modify_qp(file, &cmd, &udata); - if (ret) - return ret; - - return in_len; + return modify_qp(attrs, &cmd); } -int ib_uverbs_ex_modify_qp(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) +static int ib_uverbs_ex_modify_qp(struct uverbs_attr_bundle *attrs) { - struct ib_uverbs_ex_modify_qp cmd = {}; + struct ib_uverbs_ex_modify_qp cmd; + struct ib_uverbs_ex_modify_qp_resp resp = { + .response_length = uverbs_response_length(attrs, sizeof(resp)) + }; int ret; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; + /* * Last bit is reserved for extending the attr_mask by * using another field. */ BUILD_BUG_ON(IB_USER_LAST_QP_ATTR_MASK == (1 << 31)); - if (ucore->inlen < sizeof(cmd.base)) - return -EINVAL; - - ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); - if (ret) - return ret; - if (cmd.base.attr_mask & ~((IB_USER_LAST_QP_ATTR_MASK << 1) - 1)) return -EOPNOTSUPP; - if (ucore->inlen > sizeof(cmd)) { - if (!ib_is_udata_cleared(ucore, sizeof(cmd), - ucore->inlen - sizeof(cmd))) - return -EOPNOTSUPP; - } - - ret = modify_qp(file, &cmd, uhw); + ret = modify_qp(attrs, &cmd); + if (ret) + return ret; - return ret; + return uverbs_response(attrs, &resp, sizeof(resp)); } -ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_destroy_qp(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_destroy_qp cmd; struct ib_uverbs_destroy_qp_resp resp; struct ib_uobject *uobj; struct ib_uqp_object *obj; + int ret; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - uobj = uobj_get_destroy(UVERBS_OBJECT_QP, cmd.qp_handle, file); + uobj = uobj_get_destroy(UVERBS_OBJECT_QP, cmd.qp_handle, attrs); if (IS_ERR(uobj)) return PTR_ERR(uobj); @@ -2174,10 +1964,7 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file, uobj_put_destroy(uobj); - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) - return -EFAULT; - - return in_len; + return uverbs_response(attrs, &resp, sizeof(resp)); } static void *alloc_wr(size_t wr_size, __u32 num_sge) @@ -2190,9 +1977,7 @@ static void *alloc_wr(size_t wr_size, __u32 num_sge) num_sge * sizeof (struct ib_sge), GFP_KERNEL); } -ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_post_send(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_post_send cmd; struct ib_uverbs_post_send_resp resp; @@ -2202,24 +1987,31 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, struct ib_qp *qp; int i, sg_ind; int is_ud; - ssize_t ret = -EINVAL; + int ret, ret2; size_t next_size; + const struct ib_sge __user *sgls; + const void __user *wqes; + struct uverbs_req_iter iter; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; - - if (in_len < sizeof cmd + cmd.wqe_size * cmd.wr_count + - cmd.sge_count * sizeof (struct ib_uverbs_sge)) - return -EINVAL; - - if (cmd.wqe_size < sizeof (struct ib_uverbs_send_wr)) - return -EINVAL; + ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd)); + if (ret) + return ret; + wqes = uverbs_request_next_ptr(&iter, cmd.wqe_size * cmd.wr_count); + if (IS_ERR(wqes)) + return PTR_ERR(wqes); + sgls = uverbs_request_next_ptr( + &iter, cmd.sge_count * sizeof(struct ib_uverbs_sge)); + if (IS_ERR(sgls)) + return PTR_ERR(sgls); + ret = uverbs_request_finish(&iter); + if (ret) + return ret; user_wr = kmalloc(cmd.wqe_size, GFP_KERNEL); if (!user_wr) return -ENOMEM; - qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, file); + qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs); if (!qp) goto out; @@ -2227,8 +2019,7 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, sg_ind = 0; last = NULL; for (i = 0; i < cmd.wr_count; ++i) { - if (copy_from_user(user_wr, - buf + sizeof cmd + i * cmd.wqe_size, + if (copy_from_user(user_wr, wqes + i * cmd.wqe_size, cmd.wqe_size)) { ret = -EFAULT; goto out_put; @@ -2256,7 +2047,7 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, } ud->ah = uobj_get_obj_read(ah, UVERBS_OBJECT_AH, - user_wr->wr.ud.ah, file); + user_wr->wr.ud.ah, attrs); if (!ud->ah) { kfree(ud); ret = -EINVAL; @@ -2336,11 +2127,9 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, if (next->num_sge) { next->sg_list = (void *) next + ALIGN(next_size, sizeof(struct ib_sge)); - if (copy_from_user(next->sg_list, - buf + sizeof cmd + - cmd.wr_count * cmd.wqe_size + - sg_ind * sizeof (struct ib_sge), - next->num_sge * sizeof (struct ib_sge))) { + if (copy_from_user(next->sg_list, sgls + sg_ind, + next->num_sge * + sizeof(struct ib_sge))) { ret = -EFAULT; goto out_put; } @@ -2350,7 +2139,7 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, } resp.bad_wr = 0; - ret = qp->device->post_send(qp->real_qp, wr, &bad_wr); + ret = qp->device->ops.post_send(qp->real_qp, wr, &bad_wr); if (ret) for (next = wr; next; next = next->next) { ++resp.bad_wr; @@ -2358,8 +2147,9 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, break; } - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) - ret = -EFAULT; + ret2 = uverbs_response(attrs, &resp, sizeof(resp)); + if (ret2) + ret = ret2; out_put: uobj_put_obj_read(qp); @@ -2375,28 +2165,35 @@ out_put: out: kfree(user_wr); - return ret ? ret : in_len; + return ret; } -static struct ib_recv_wr *ib_uverbs_unmarshall_recv(const char __user *buf, - int in_len, - u32 wr_count, - u32 sge_count, - u32 wqe_size) +static struct ib_recv_wr * +ib_uverbs_unmarshall_recv(struct uverbs_req_iter *iter, u32 wr_count, + u32 wqe_size, u32 sge_count) { struct ib_uverbs_recv_wr *user_wr; struct ib_recv_wr *wr = NULL, *last, *next; int sg_ind; int i; int ret; - - if (in_len < wqe_size * wr_count + - sge_count * sizeof (struct ib_uverbs_sge)) - return ERR_PTR(-EINVAL); + const struct ib_sge __user *sgls; + const void __user *wqes; if (wqe_size < sizeof (struct ib_uverbs_recv_wr)) return ERR_PTR(-EINVAL); + wqes = uverbs_request_next_ptr(iter, wqe_size * wr_count); + if (IS_ERR(wqes)) + return ERR_CAST(wqes); + sgls = uverbs_request_next_ptr( + iter, sge_count * sizeof(struct ib_uverbs_sge)); + if (IS_ERR(sgls)) + return ERR_CAST(sgls); + ret = uverbs_request_finish(iter); + if (ret) + return ERR_PTR(ret); + user_wr = kmalloc(wqe_size, GFP_KERNEL); if (!user_wr) return ERR_PTR(-ENOMEM); @@ -2404,7 +2201,7 @@ static struct ib_recv_wr *ib_uverbs_unmarshall_recv(const char __user *buf, sg_ind = 0; last = NULL; for (i = 0; i < wr_count; ++i) { - if (copy_from_user(user_wr, buf + i * wqe_size, + if (copy_from_user(user_wr, wqes + i * wqe_size, wqe_size)) { ret = -EFAULT; goto err; @@ -2443,10 +2240,9 @@ static struct ib_recv_wr *ib_uverbs_unmarshall_recv(const char __user *buf, if (next->num_sge) { next->sg_list = (void *) next + ALIGN(sizeof *next, sizeof (struct ib_sge)); - if (copy_from_user(next->sg_list, - buf + wr_count * wqe_size + - sg_ind * sizeof (struct ib_sge), - next->num_sge * sizeof (struct ib_sge))) { + if (copy_from_user(next->sg_list, sgls + sg_ind, + next->num_sge * + sizeof(struct ib_sge))) { ret = -EFAULT; goto err; } @@ -2470,32 +2266,33 @@ err: return ERR_PTR(ret); } -ssize_t ib_uverbs_post_recv(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_post_recv(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_post_recv cmd; struct ib_uverbs_post_recv_resp resp; struct ib_recv_wr *wr, *next; const struct ib_recv_wr *bad_wr; struct ib_qp *qp; - ssize_t ret = -EINVAL; + int ret, ret2; + struct uverbs_req_iter iter; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd)); + if (ret) + return ret; - wr = ib_uverbs_unmarshall_recv(buf + sizeof cmd, - in_len - sizeof cmd, cmd.wr_count, - cmd.sge_count, cmd.wqe_size); + wr = ib_uverbs_unmarshall_recv(&iter, cmd.wr_count, cmd.wqe_size, + cmd.sge_count); if (IS_ERR(wr)) return PTR_ERR(wr); - qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, file); - if (!qp) + qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs); + if (!qp) { + ret = -EINVAL; goto out; + } resp.bad_wr = 0; - ret = qp->device->post_recv(qp->real_qp, wr, &bad_wr); + ret = qp->device->ops.post_recv(qp->real_qp, wr, &bad_wr); uobj_put_obj_read(qp); if (ret) { @@ -2506,9 +2303,9 @@ ssize_t ib_uverbs_post_recv(struct ib_uverbs_file *file, } } - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) - ret = -EFAULT; - + ret2 = uverbs_response(attrs, &resp, sizeof(resp)); + if (ret2) + ret = ret2; out: while (wr) { next = wr->next; @@ -2516,36 +2313,36 @@ out: wr = next; } - return ret ? ret : in_len; + return ret; } -ssize_t ib_uverbs_post_srq_recv(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_post_srq_recv(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_post_srq_recv cmd; struct ib_uverbs_post_srq_recv_resp resp; struct ib_recv_wr *wr, *next; const struct ib_recv_wr *bad_wr; struct ib_srq *srq; - ssize_t ret = -EINVAL; + int ret, ret2; + struct uverbs_req_iter iter; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd)); + if (ret) + return ret; - wr = ib_uverbs_unmarshall_recv(buf + sizeof cmd, - in_len - sizeof cmd, cmd.wr_count, - cmd.sge_count, cmd.wqe_size); + wr = ib_uverbs_unmarshall_recv(&iter, cmd.wr_count, cmd.wqe_size, + cmd.sge_count); if (IS_ERR(wr)) return PTR_ERR(wr); - srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, file); - if (!srq) + srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs); + if (!srq) { + ret = -EINVAL; goto out; + } resp.bad_wr = 0; - ret = srq->device->post_srq_recv ? - srq->device->post_srq_recv(srq, wr, &bad_wr) : -EOPNOTSUPP; + ret = srq->device->ops.post_srq_recv(srq, wr, &bad_wr); uobj_put_obj_read(srq); @@ -2556,8 +2353,9 @@ ssize_t ib_uverbs_post_srq_recv(struct ib_uverbs_file *file, break; } - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) - ret = -EFAULT; + ret2 = uverbs_response(attrs, &resp, sizeof(resp)); + if (ret2) + ret = ret2; out: while (wr) { @@ -2566,12 +2364,10 @@ out: wr = next; } - return ret ? ret : in_len; + return ret; } -ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_create_ah(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_create_ah cmd; struct ib_uverbs_create_ah_resp resp; @@ -2580,21 +2376,13 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file, struct ib_ah *ah; struct rdma_ah_attr attr = {}; int ret; - struct ib_udata udata; struct ib_device *ib_dev; - if (out_len < sizeof resp) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; - - ib_uverbs_init_udata(&udata, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + sizeof(resp), - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - sizeof(resp)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - uobj = uobj_alloc(UVERBS_OBJECT_AH, file, &ib_dev); + uobj = uobj_alloc(UVERBS_OBJECT_AH, attrs, &ib_dev); if (IS_ERR(uobj)) return PTR_ERR(uobj); @@ -2603,7 +2391,7 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file, goto err; } - pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, file); + pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs); if (!pd) { ret = -EINVAL; goto err; @@ -2627,7 +2415,7 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file, rdma_ah_set_ah_flags(&attr, 0); } - ah = rdma_create_user_ah(pd, &attr, &udata); + ah = rdma_create_user_ah(pd, &attr, &attrs->driver_udata); if (IS_ERR(ah)) { ret = PTR_ERR(ah); goto err_put; @@ -2639,16 +2427,15 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file, resp.ah_handle = uobj->id; - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) { - ret = -EFAULT; + ret = uverbs_response(attrs, &resp, sizeof(resp)); + if (ret) goto err_copy; - } uobj_put_obj_read(pd); - return uobj_alloc_commit(uobj, in_len); + return uobj_alloc_commit(uobj); err_copy: - rdma_destroy_ah(ah); + rdma_destroy_ah(ah, RDMA_DESTROY_AH_SLEEPABLE); err_put: uobj_put_obj_read(pd); @@ -2658,21 +2445,19 @@ err: return ret; } -ssize_t ib_uverbs_destroy_ah(struct ib_uverbs_file *file, - const char __user *buf, int in_len, int out_len) +static int ib_uverbs_destroy_ah(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_destroy_ah cmd; + int ret; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - return uobj_perform_destroy(UVERBS_OBJECT_AH, cmd.ah_handle, file, - in_len); + return uobj_perform_destroy(UVERBS_OBJECT_AH, cmd.ah_handle, attrs); } -ssize_t ib_uverbs_attach_mcast(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_attach_mcast(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_attach_mcast cmd; struct ib_qp *qp; @@ -2680,10 +2465,11 @@ ssize_t ib_uverbs_attach_mcast(struct ib_uverbs_file *file, struct ib_uverbs_mcast_entry *mcast; int ret; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, file); + qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs); if (!qp) return -EINVAL; @@ -2716,12 +2502,10 @@ out_put: mutex_unlock(&obj->mcast_lock); uobj_put_obj_read(qp); - return ret ? ret : in_len; + return ret; } -ssize_t ib_uverbs_detach_mcast(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_detach_mcast(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_detach_mcast cmd; struct ib_uqp_object *obj; @@ -2730,10 +2514,11 @@ ssize_t ib_uverbs_detach_mcast(struct ib_uverbs_file *file, int ret = -EINVAL; bool found = false; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, file); + qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs); if (!qp) return -EINVAL; @@ -2759,7 +2544,7 @@ ssize_t ib_uverbs_detach_mcast(struct ib_uverbs_file *file, out_put: mutex_unlock(&obj->mcast_lock); uobj_put_obj_read(qp); - return ret ? ret : in_len; + return ret; } struct ib_uflow_resources *flow_resources_alloc(size_t num_specs) @@ -2838,7 +2623,7 @@ void flow_resources_add(struct ib_uflow_resources *uflow_res, } EXPORT_SYMBOL(flow_resources_add); -static int kern_spec_to_ib_spec_action(struct ib_uverbs_file *ufile, +static int kern_spec_to_ib_spec_action(const struct uverbs_attr_bundle *attrs, struct ib_uverbs_flow_spec *kern_spec, union ib_flow_spec *ib_spec, struct ib_uflow_resources *uflow_res) @@ -2867,7 +2652,7 @@ static int kern_spec_to_ib_spec_action(struct ib_uverbs_file *ufile, ib_spec->action.act = uobj_get_obj_read(flow_action, UVERBS_OBJECT_FLOW_ACTION, kern_spec->action.handle, - ufile); + attrs); if (!ib_spec->action.act) return -EINVAL; ib_spec->action.size = @@ -2885,7 +2670,7 @@ static int kern_spec_to_ib_spec_action(struct ib_uverbs_file *ufile, uobj_get_obj_read(counters, UVERBS_OBJECT_COUNTERS, kern_spec->flow_count.handle, - ufile); + attrs); if (!ib_spec->flow_count.counters) return -EINVAL; ib_spec->flow_count.size = @@ -3066,7 +2851,7 @@ static int kern_spec_to_ib_spec_filter(struct ib_uverbs_flow_spec *kern_spec, kern_filter_sz, ib_spec); } -static int kern_spec_to_ib_spec(struct ib_uverbs_file *ufile, +static int kern_spec_to_ib_spec(struct uverbs_attr_bundle *attrs, struct ib_uverbs_flow_spec *kern_spec, union ib_flow_spec *ib_spec, struct ib_uflow_resources *uflow_res) @@ -3075,17 +2860,15 @@ static int kern_spec_to_ib_spec(struct ib_uverbs_file *ufile, return -EINVAL; if (kern_spec->type >= IB_FLOW_SPEC_ACTION_TAG) - return kern_spec_to_ib_spec_action(ufile, kern_spec, ib_spec, + return kern_spec_to_ib_spec_action(attrs, kern_spec, ib_spec, uflow_res); else return kern_spec_to_ib_spec_filter(kern_spec, ib_spec); } -int ib_uverbs_ex_create_wq(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) +static int ib_uverbs_ex_create_wq(struct uverbs_attr_bundle *attrs) { - struct ib_uverbs_ex_create_wq cmd = {}; + struct ib_uverbs_ex_create_wq cmd; struct ib_uverbs_ex_create_wq_resp resp = {}; struct ib_uwq_object *obj; int err = 0; @@ -3093,43 +2876,27 @@ int ib_uverbs_ex_create_wq(struct ib_uverbs_file *file, struct ib_pd *pd; struct ib_wq *wq; struct ib_wq_init_attr wq_init_attr = {}; - size_t required_cmd_sz; - size_t required_resp_len; struct ib_device *ib_dev; - required_cmd_sz = offsetof(typeof(cmd), max_sge) + sizeof(cmd.max_sge); - required_resp_len = offsetof(typeof(resp), wqn) + sizeof(resp.wqn); - - if (ucore->inlen < required_cmd_sz) - return -EINVAL; - - if (ucore->outlen < required_resp_len) - return -ENOSPC; - - if (ucore->inlen > sizeof(cmd) && - !ib_is_udata_cleared(ucore, sizeof(cmd), - ucore->inlen - sizeof(cmd))) - return -EOPNOTSUPP; - - err = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); + err = uverbs_request(attrs, &cmd, sizeof(cmd)); if (err) return err; if (cmd.comp_mask) return -EOPNOTSUPP; - obj = (struct ib_uwq_object *)uobj_alloc(UVERBS_OBJECT_WQ, file, + obj = (struct ib_uwq_object *)uobj_alloc(UVERBS_OBJECT_WQ, attrs, &ib_dev); if (IS_ERR(obj)) return PTR_ERR(obj); - pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, file); + pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs); if (!pd) { err = -EINVAL; goto err_uobj; } - cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, file); + cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs); if (!cq) { err = -EINVAL; goto err_put_pd; @@ -3138,20 +2905,14 @@ int ib_uverbs_ex_create_wq(struct ib_uverbs_file *file, wq_init_attr.cq = cq; wq_init_attr.max_sge = cmd.max_sge; wq_init_attr.max_wr = cmd.max_wr; - wq_init_attr.wq_context = file; + wq_init_attr.wq_context = attrs->ufile; wq_init_attr.wq_type = cmd.wq_type; wq_init_attr.event_handler = ib_uverbs_wq_event_handler; - if (ucore->inlen >= (offsetof(typeof(cmd), create_flags) + - sizeof(cmd.create_flags))) - wq_init_attr.create_flags = cmd.create_flags; + wq_init_attr.create_flags = cmd.create_flags; obj->uevent.events_reported = 0; INIT_LIST_HEAD(&obj->uevent.event_list); - if (!pd->device->create_wq) { - err = -EOPNOTSUPP; - goto err_put_cq; - } - wq = pd->device->create_wq(pd, &wq_init_attr, uhw); + wq = pd->device->ops.create_wq(pd, &wq_init_attr, &attrs->driver_udata); if (IS_ERR(wq)) { err = PTR_ERR(wq); goto err_put_cq; @@ -3175,15 +2936,14 @@ int ib_uverbs_ex_create_wq(struct ib_uverbs_file *file, resp.max_sge = wq_init_attr.max_sge; resp.max_wr = wq_init_attr.max_wr; resp.wqn = wq->wq_num; - resp.response_length = required_resp_len; - err = ib_copy_to_udata(ucore, - &resp, resp.response_length); + resp.response_length = uverbs_response_length(attrs, sizeof(resp)); + err = uverbs_response(attrs, &resp, sizeof(resp)); if (err) goto err_copy; uobj_put_obj_read(pd); uobj_put_obj_read(cq); - return uobj_alloc_commit(&obj->uevent.uobject, 0); + return uobj_alloc_commit(&obj->uevent.uobject); err_copy: ib_destroy_wq(wq); @@ -3197,41 +2957,23 @@ err_uobj: return err; } -int ib_uverbs_ex_destroy_wq(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) +static int ib_uverbs_ex_destroy_wq(struct uverbs_attr_bundle *attrs) { - struct ib_uverbs_ex_destroy_wq cmd = {}; + struct ib_uverbs_ex_destroy_wq cmd; struct ib_uverbs_ex_destroy_wq_resp resp = {}; struct ib_uobject *uobj; struct ib_uwq_object *obj; - size_t required_cmd_sz; - size_t required_resp_len; int ret; - required_cmd_sz = offsetof(typeof(cmd), wq_handle) + sizeof(cmd.wq_handle); - required_resp_len = offsetof(typeof(resp), reserved) + sizeof(resp.reserved); - - if (ucore->inlen < required_cmd_sz) - return -EINVAL; - - if (ucore->outlen < required_resp_len) - return -ENOSPC; - - if (ucore->inlen > sizeof(cmd) && - !ib_is_udata_cleared(ucore, sizeof(cmd), - ucore->inlen - sizeof(cmd))) - return -EOPNOTSUPP; - - ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); if (ret) return ret; if (cmd.comp_mask) return -EOPNOTSUPP; - resp.response_length = required_resp_len; - uobj = uobj_get_destroy(UVERBS_OBJECT_WQ, cmd.wq_handle, file); + resp.response_length = uverbs_response_length(attrs, sizeof(resp)); + uobj = uobj_get_destroy(UVERBS_OBJECT_WQ, cmd.wq_handle, attrs); if (IS_ERR(uobj)) return PTR_ERR(uobj); @@ -3240,29 +2982,17 @@ int ib_uverbs_ex_destroy_wq(struct ib_uverbs_file *file, uobj_put_destroy(uobj); - return ib_copy_to_udata(ucore, &resp, resp.response_length); + return uverbs_response(attrs, &resp, sizeof(resp)); } -int ib_uverbs_ex_modify_wq(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) +static int ib_uverbs_ex_modify_wq(struct uverbs_attr_bundle *attrs) { - struct ib_uverbs_ex_modify_wq cmd = {}; + struct ib_uverbs_ex_modify_wq cmd; struct ib_wq *wq; struct ib_wq_attr wq_attr = {}; - size_t required_cmd_sz; int ret; - required_cmd_sz = offsetof(typeof(cmd), curr_wq_state) + sizeof(cmd.curr_wq_state); - if (ucore->inlen < required_cmd_sz) - return -EINVAL; - - if (ucore->inlen > sizeof(cmd) && - !ib_is_udata_cleared(ucore, sizeof(cmd), - ucore->inlen - sizeof(cmd))) - return -EOPNOTSUPP; - - ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); if (ret) return ret; @@ -3272,7 +3002,7 @@ int ib_uverbs_ex_modify_wq(struct ib_uverbs_file *file, if (cmd.attr_mask > (IB_WQ_STATE | IB_WQ_CUR_STATE | IB_WQ_FLAGS)) return -EINVAL; - wq = uobj_get_obj_read(wq, UVERBS_OBJECT_WQ, cmd.wq_handle, file); + wq = uobj_get_obj_read(wq, UVERBS_OBJECT_WQ, cmd.wq_handle, attrs); if (!wq) return -EINVAL; @@ -3282,24 +3012,18 @@ int ib_uverbs_ex_modify_wq(struct ib_uverbs_file *file, wq_attr.flags = cmd.flags; wq_attr.flags_mask = cmd.flags_mask; } - if (!wq->device->modify_wq) { - ret = -EOPNOTSUPP; - goto out; - } - ret = wq->device->modify_wq(wq, &wq_attr, cmd.attr_mask, uhw); -out: + ret = wq->device->ops.modify_wq(wq, &wq_attr, cmd.attr_mask, + &attrs->driver_udata); uobj_put_obj_read(wq); return ret; } -int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) +static int ib_uverbs_ex_create_rwq_ind_table(struct uverbs_attr_bundle *attrs) { - struct ib_uverbs_ex_create_rwq_ind_table cmd = {}; + struct ib_uverbs_ex_create_rwq_ind_table cmd; struct ib_uverbs_ex_create_rwq_ind_table_resp resp = {}; struct ib_uobject *uobj; - int err = 0; + int err; struct ib_rwq_ind_table_init_attr init_attr = {}; struct ib_rwq_ind_table *rwq_ind_tbl; struct ib_wq **wqs = NULL; @@ -3307,27 +3031,13 @@ int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file, struct ib_wq *wq = NULL; int i, j, num_read_wqs; u32 num_wq_handles; - u32 expected_in_size; - size_t required_cmd_sz_header; - size_t required_resp_len; + struct uverbs_req_iter iter; struct ib_device *ib_dev; - required_cmd_sz_header = offsetof(typeof(cmd), log_ind_tbl_size) + sizeof(cmd.log_ind_tbl_size); - required_resp_len = offsetof(typeof(resp), ind_tbl_num) + sizeof(resp.ind_tbl_num); - - if (ucore->inlen < required_cmd_sz_header) - return -EINVAL; - - if (ucore->outlen < required_resp_len) - return -ENOSPC; - - err = ib_copy_from_udata(&cmd, ucore, required_cmd_sz_header); + err = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd)); if (err) return err; - ucore->inbuf += required_cmd_sz_header; - ucore->inlen -= required_cmd_sz_header; - if (cmd.comp_mask) return -EOPNOTSUPP; @@ -3335,26 +3045,17 @@ int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file, return -EINVAL; num_wq_handles = 1 << cmd.log_ind_tbl_size; - expected_in_size = num_wq_handles * sizeof(__u32); - if (num_wq_handles == 1) - /* input size for wq handles is u64 aligned */ - expected_in_size += sizeof(__u32); - - if (ucore->inlen < expected_in_size) - return -EINVAL; - - if (ucore->inlen > expected_in_size && - !ib_is_udata_cleared(ucore, expected_in_size, - ucore->inlen - expected_in_size)) - return -EOPNOTSUPP; - wqs_handles = kcalloc(num_wq_handles, sizeof(*wqs_handles), GFP_KERNEL); if (!wqs_handles) return -ENOMEM; - err = ib_copy_from_udata(wqs_handles, ucore, - num_wq_handles * sizeof(__u32)); + err = uverbs_request_next(&iter, wqs_handles, + num_wq_handles * sizeof(__u32)); + if (err) + goto err_free; + + err = uverbs_request_finish(&iter); if (err) goto err_free; @@ -3367,7 +3068,7 @@ int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file, for (num_read_wqs = 0; num_read_wqs < num_wq_handles; num_read_wqs++) { wq = uobj_get_obj_read(wq, UVERBS_OBJECT_WQ, - wqs_handles[num_read_wqs], file); + wqs_handles[num_read_wqs], attrs); if (!wq) { err = -EINVAL; goto put_wqs; @@ -3376,7 +3077,7 @@ int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file, wqs[num_read_wqs] = wq; } - uobj = uobj_alloc(UVERBS_OBJECT_RWQ_IND_TBL, file, &ib_dev); + uobj = uobj_alloc(UVERBS_OBJECT_RWQ_IND_TBL, attrs, &ib_dev); if (IS_ERR(uobj)) { err = PTR_ERR(uobj); goto put_wqs; @@ -3385,11 +3086,8 @@ int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file, init_attr.log_ind_tbl_size = cmd.log_ind_tbl_size; init_attr.ind_tbl = wqs; - if (!ib_dev->create_rwq_ind_table) { - err = -EOPNOTSUPP; - goto err_uobj; - } - rwq_ind_tbl = ib_dev->create_rwq_ind_table(ib_dev, &init_attr, uhw); + rwq_ind_tbl = ib_dev->ops.create_rwq_ind_table(ib_dev, &init_attr, + &attrs->driver_udata); if (IS_ERR(rwq_ind_tbl)) { err = PTR_ERR(rwq_ind_tbl); @@ -3408,10 +3106,9 @@ int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file, resp.ind_tbl_handle = uobj->id; resp.ind_tbl_num = rwq_ind_tbl->ind_tbl_num; - resp.response_length = required_resp_len; + resp.response_length = uverbs_response_length(attrs, sizeof(resp)); - err = ib_copy_to_udata(ucore, - &resp, resp.response_length); + err = uverbs_response(attrs, &resp, sizeof(resp)); if (err) goto err_copy; @@ -3420,7 +3117,7 @@ int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file, for (j = 0; j < num_read_wqs; j++) uobj_put_obj_read(wqs[j]); - return uobj_alloc_commit(uobj, 0); + return uobj_alloc_commit(uobj); err_copy: ib_destroy_rwq_ind_table(rwq_ind_tbl); @@ -3435,25 +3132,12 @@ err_free: return err; } -int ib_uverbs_ex_destroy_rwq_ind_table(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) +static int ib_uverbs_ex_destroy_rwq_ind_table(struct uverbs_attr_bundle *attrs) { - struct ib_uverbs_ex_destroy_rwq_ind_table cmd = {}; - int ret; - size_t required_cmd_sz; - - required_cmd_sz = offsetof(typeof(cmd), ind_tbl_handle) + sizeof(cmd.ind_tbl_handle); - - if (ucore->inlen < required_cmd_sz) - return -EINVAL; - - if (ucore->inlen > sizeof(cmd) && - !ib_is_udata_cleared(ucore, sizeof(cmd), - ucore->inlen - sizeof(cmd))) - return -EOPNOTSUPP; + struct ib_uverbs_ex_destroy_rwq_ind_table cmd; + int ret; - ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); if (ret) return ret; @@ -3461,12 +3145,10 @@ int ib_uverbs_ex_destroy_rwq_ind_table(struct ib_uverbs_file *file, return -EOPNOTSUPP; return uobj_perform_destroy(UVERBS_OBJECT_RWQ_IND_TBL, - cmd.ind_tbl_handle, file, 0); + cmd.ind_tbl_handle, attrs); } -int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) +static int ib_uverbs_ex_create_flow(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_create_flow cmd; struct ib_uverbs_create_flow_resp resp; @@ -3477,24 +3159,16 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, struct ib_qp *qp; struct ib_uflow_resources *uflow_res; struct ib_uverbs_flow_spec_hdr *kern_spec; - int err = 0; + struct uverbs_req_iter iter; + int err; void *ib_spec; int i; struct ib_device *ib_dev; - if (ucore->inlen < sizeof(cmd)) - return -EINVAL; - - if (ucore->outlen < sizeof(resp)) - return -ENOSPC; - - err = ib_copy_from_udata(&cmd, ucore, sizeof(cmd)); + err = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd)); if (err) return err; - ucore->inbuf += sizeof(cmd); - ucore->inlen -= sizeof(cmd); - if (cmd.comp_mask) return -EINVAL; @@ -3512,8 +3186,7 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, if (cmd.flow_attr.num_of_specs > IB_FLOW_SPEC_SUPPORT_LAYERS) return -EINVAL; - if (cmd.flow_attr.size > ucore->inlen || - cmd.flow_attr.size > + if (cmd.flow_attr.size > (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_flow_spec))) return -EINVAL; @@ -3528,21 +3201,25 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, return -ENOMEM; *kern_flow_attr = cmd.flow_attr; - err = ib_copy_from_udata(&kern_flow_attr->flow_specs, ucore, - cmd.flow_attr.size); + err = uverbs_request_next(&iter, &kern_flow_attr->flow_specs, + cmd.flow_attr.size); if (err) goto err_free_attr; } else { kern_flow_attr = &cmd.flow_attr; } - uobj = uobj_alloc(UVERBS_OBJECT_FLOW, file, &ib_dev); + err = uverbs_request_finish(&iter); + if (err) + goto err_free_attr; + + uobj = uobj_alloc(UVERBS_OBJECT_FLOW, attrs, &ib_dev); if (IS_ERR(uobj)) { err = PTR_ERR(uobj); goto err_free_attr; } - qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, file); + qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs); if (!qp) { err = -EINVAL; goto err_uobj; @@ -3553,11 +3230,6 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, goto err_put; } - if (!qp->device->create_flow) { - err = -EOPNOTSUPP; - goto err_put; - } - flow_attr = kzalloc(struct_size(flow_attr, flows, cmd.flow_attr.num_of_specs), GFP_KERNEL); if (!flow_attr) { @@ -3584,7 +3256,7 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, cmd.flow_attr.size >= kern_spec->size; i++) { err = kern_spec_to_ib_spec( - file, (struct ib_uverbs_flow_spec *)kern_spec, + attrs, (struct ib_uverbs_flow_spec *)kern_spec, ib_spec, uflow_res); if (err) goto err_free; @@ -3602,8 +3274,8 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, goto err_free; } - flow_id = qp->device->create_flow(qp, flow_attr, - IB_FLOW_DOMAIN_USER, uhw); + flow_id = qp->device->ops.create_flow( + qp, flow_attr, IB_FLOW_DOMAIN_USER, &attrs->driver_udata); if (IS_ERR(flow_id)) { err = PTR_ERR(flow_id); @@ -3615,8 +3287,7 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, memset(&resp, 0, sizeof(resp)); resp.flow_handle = uobj->id; - err = ib_copy_to_udata(ucore, - &resp, sizeof(resp)); + err = uverbs_response(attrs, &resp, sizeof(resp)); if (err) goto err_copy; @@ -3624,9 +3295,9 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, kfree(flow_attr); if (cmd.flow_attr.num_of_specs) kfree(kern_flow_attr); - return uobj_alloc_commit(uobj, 0); + return uobj_alloc_commit(uobj); err_copy: - if (!qp->device->destroy_flow(flow_id)) + if (!qp->device->ops.destroy_flow(flow_id)) atomic_dec(&qp->usecnt); err_free: ib_uverbs_flow_resources_free(uflow_res); @@ -3642,28 +3313,22 @@ err_free_attr: return err; } -int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) +static int ib_uverbs_ex_destroy_flow(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_destroy_flow cmd; int ret; - if (ucore->inlen < sizeof(cmd)) - return -EINVAL; - - ret = ib_copy_from_udata(&cmd, ucore, sizeof(cmd)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); if (ret) return ret; if (cmd.comp_mask) return -EINVAL; - return uobj_perform_destroy(UVERBS_OBJECT_FLOW, cmd.flow_handle, file, - 0); + return uobj_perform_destroy(UVERBS_OBJECT_FLOW, cmd.flow_handle, attrs); } -static int __uverbs_create_xsrq(struct ib_uverbs_file *file, +static int __uverbs_create_xsrq(struct uverbs_attr_bundle *attrs, struct ib_uverbs_create_xsrq *cmd, struct ib_udata *udata) { @@ -3676,7 +3341,7 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file, int ret; struct ib_device *ib_dev; - obj = (struct ib_usrq_object *)uobj_alloc(UVERBS_OBJECT_SRQ, file, + obj = (struct ib_usrq_object *)uobj_alloc(UVERBS_OBJECT_SRQ, attrs, &ib_dev); if (IS_ERR(obj)) return PTR_ERR(obj); @@ -3686,7 +3351,7 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file, if (cmd->srq_type == IB_SRQT_XRC) { xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd->xrcd_handle, - file); + attrs); if (IS_ERR(xrcd_uobj)) { ret = -EINVAL; goto err; @@ -3704,21 +3369,21 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file, if (ib_srq_has_cq(cmd->srq_type)) { attr.ext.cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, - cmd->cq_handle, file); + cmd->cq_handle, attrs); if (!attr.ext.cq) { ret = -EINVAL; goto err_put_xrcd; } } - pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd->pd_handle, file); + pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd->pd_handle, attrs); if (!pd) { ret = -EINVAL; goto err_put_cq; } attr.event_handler = ib_uverbs_srq_event_handler; - attr.srq_context = file; + attr.srq_context = attrs->ufile; attr.srq_type = cmd->srq_type; attr.attr.max_wr = cmd->max_wr; attr.attr.max_sge = cmd->max_sge; @@ -3727,7 +3392,7 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file, obj->uevent.events_reported = 0; INIT_LIST_HEAD(&obj->uevent.event_list); - srq = pd->device->create_srq(pd, &attr, udata); + srq = pd->device->ops.create_srq(pd, &attr, udata); if (IS_ERR(srq)) { ret = PTR_ERR(srq); goto err_put; @@ -3763,11 +3428,9 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file, if (cmd->srq_type == IB_SRQT_XRC) resp.srqn = srq->ext.xrc.srq_num; - if (copy_to_user(u64_to_user_ptr(cmd->response), - &resp, sizeof resp)) { - ret = -EFAULT; + ret = uverbs_response(attrs, &resp, sizeof(resp)); + if (ret) goto err_copy; - } if (cmd->srq_type == IB_SRQT_XRC) uobj_put_read(xrcd_uobj); @@ -3776,7 +3439,7 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file, uobj_put_obj_read(attr.ext.cq); uobj_put_obj_read(pd); - return uobj_alloc_commit(&obj->uevent.uobject, 0); + return uobj_alloc_commit(&obj->uevent.uobject); err_copy: ib_destroy_srq(srq); @@ -3799,21 +3462,15 @@ err: return ret; } -ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_create_srq(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_create_srq cmd; struct ib_uverbs_create_xsrq xcmd; - struct ib_uverbs_create_srq_resp resp; - struct ib_udata udata; int ret; - if (out_len < sizeof resp) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; memset(&xcmd, 0, sizeof(xcmd)); xcmd.response = cmd.response; @@ -3824,77 +3481,48 @@ ssize_t ib_uverbs_create_srq(struct ib_uverbs_file *file, xcmd.max_sge = cmd.max_sge; xcmd.srq_limit = cmd.srq_limit; - ib_uverbs_init_udata(&udata, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + sizeof(resp), - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - sizeof(resp)); - - ret = __uverbs_create_xsrq(file, &xcmd, &udata); - if (ret) - return ret; - - return in_len; + return __uverbs_create_xsrq(attrs, &xcmd, &attrs->driver_udata); } -ssize_t ib_uverbs_create_xsrq(struct ib_uverbs_file *file, - const char __user *buf, int in_len, int out_len) +static int ib_uverbs_create_xsrq(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_create_xsrq cmd; - struct ib_uverbs_create_srq_resp resp; - struct ib_udata udata; int ret; - if (out_len < sizeof resp) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; - - ib_uverbs_init_udata(&udata, buf + sizeof(cmd), - u64_to_user_ptr(cmd.response) + sizeof(resp), - in_len - sizeof(cmd) - sizeof(struct ib_uverbs_cmd_hdr), - out_len - sizeof(resp)); - - ret = __uverbs_create_xsrq(file, &cmd, &udata); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); if (ret) return ret; - return in_len; + return __uverbs_create_xsrq(attrs, &cmd, &attrs->driver_udata); } -ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_modify_srq(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_modify_srq cmd; - struct ib_udata udata; struct ib_srq *srq; struct ib_srq_attr attr; int ret; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; - - ib_uverbs_init_udata(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd, - out_len); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, file); + srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs); if (!srq) return -EINVAL; attr.max_wr = cmd.max_wr; attr.srq_limit = cmd.srq_limit; - ret = srq->device->modify_srq(srq, &attr, cmd.attr_mask, &udata); + ret = srq->device->ops.modify_srq(srq, &attr, cmd.attr_mask, + &attrs->driver_udata); uobj_put_obj_read(srq); - return ret ? ret : in_len; + return ret; } -ssize_t ib_uverbs_query_srq(struct ib_uverbs_file *file, - const char __user *buf, - int in_len, int out_len) +static int ib_uverbs_query_srq(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_query_srq cmd; struct ib_uverbs_query_srq_resp resp; @@ -3902,13 +3530,11 @@ ssize_t ib_uverbs_query_srq(struct ib_uverbs_file *file, struct ib_srq *srq; int ret; - if (out_len < sizeof resp) - return -ENOSPC; - - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, file); + srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs); if (!srq) return -EINVAL; @@ -3925,25 +3551,22 @@ ssize_t ib_uverbs_query_srq(struct ib_uverbs_file *file, resp.max_sge = attr.max_sge; resp.srq_limit = attr.srq_limit; - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof resp)) - return -EFAULT; - - return in_len; + return uverbs_response(attrs, &resp, sizeof(resp)); } -ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +static int ib_uverbs_destroy_srq(struct uverbs_attr_bundle *attrs) { struct ib_uverbs_destroy_srq cmd; struct ib_uverbs_destroy_srq_resp resp; struct ib_uobject *uobj; struct ib_uevent_object *obj; + int ret; - if (copy_from_user(&cmd, buf, sizeof cmd)) - return -EFAULT; + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); + if (ret) + return ret; - uobj = uobj_get_destroy(UVERBS_OBJECT_SRQ, cmd.srq_handle, file); + uobj = uobj_get_destroy(UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs); if (IS_ERR(uobj)) return PTR_ERR(uobj); @@ -3953,35 +3576,24 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file, uobj_put_destroy(uobj); - if (copy_to_user(u64_to_user_ptr(cmd.response), &resp, sizeof(resp))) - return -EFAULT; - - return in_len; + return uverbs_response(attrs, &resp, sizeof(resp)); } -int ib_uverbs_ex_query_device(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) +static int ib_uverbs_ex_query_device(struct uverbs_attr_bundle *attrs) { - struct ib_uverbs_ex_query_device_resp resp = { {0} }; + struct ib_uverbs_ex_query_device_resp resp = {}; struct ib_uverbs_ex_query_device cmd; struct ib_device_attr attr = {0}; struct ib_ucontext *ucontext; struct ib_device *ib_dev; int err; - ucontext = ib_uverbs_get_ucontext(file); + ucontext = ib_uverbs_get_ucontext(attrs); if (IS_ERR(ucontext)) return PTR_ERR(ucontext); ib_dev = ucontext->device; - if (!ib_dev->query_device) - return -EOPNOTSUPP; - - if (ucore->inlen < sizeof(cmd)) - return -EINVAL; - - err = ib_copy_from_udata(&cmd, ucore, sizeof(cmd)); + err = uverbs_request(attrs, &cmd, sizeof(cmd)); if (err) return err; @@ -3991,20 +3603,12 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file, if (cmd.reserved) return -EINVAL; - resp.response_length = offsetof(typeof(resp), odp_caps); - - if (ucore->outlen < resp.response_length) - return -ENOSPC; - - err = ib_dev->query_device(ib_dev, &attr, uhw); + err = ib_dev->ops.query_device(ib_dev, &attr, &attrs->driver_udata); if (err) return err; copy_query_dev_fields(ucontext, &resp.base, &attr); - if (ucore->outlen < resp.response_length + sizeof(resp.odp_caps)) - goto end; - #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING resp.odp_caps.general_caps = attr.odp_caps.general_caps; resp.odp_caps.per_transport_caps.rc_odp_caps = @@ -4014,99 +3618,39 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file, resp.odp_caps.per_transport_caps.ud_odp_caps = attr.odp_caps.per_transport_caps.ud_odp_caps; #endif - resp.response_length += sizeof(resp.odp_caps); - - if (ucore->outlen < resp.response_length + sizeof(resp.timestamp_mask)) - goto end; resp.timestamp_mask = attr.timestamp_mask; - resp.response_length += sizeof(resp.timestamp_mask); - - if (ucore->outlen < resp.response_length + sizeof(resp.hca_core_clock)) - goto end; - resp.hca_core_clock = attr.hca_core_clock; - resp.response_length += sizeof(resp.hca_core_clock); - - if (ucore->outlen < resp.response_length + sizeof(resp.device_cap_flags_ex)) - goto end; - resp.device_cap_flags_ex = attr.device_cap_flags; - resp.response_length += sizeof(resp.device_cap_flags_ex); - - if (ucore->outlen < resp.response_length + sizeof(resp.rss_caps)) - goto end; - resp.rss_caps.supported_qpts = attr.rss_caps.supported_qpts; resp.rss_caps.max_rwq_indirection_tables = attr.rss_caps.max_rwq_indirection_tables; resp.rss_caps.max_rwq_indirection_table_size = attr.rss_caps.max_rwq_indirection_table_size; - - resp.response_length += sizeof(resp.rss_caps); - - if (ucore->outlen < resp.response_length + sizeof(resp.max_wq_type_rq)) - goto end; - resp.max_wq_type_rq = attr.max_wq_type_rq; - resp.response_length += sizeof(resp.max_wq_type_rq); - - if (ucore->outlen < resp.response_length + sizeof(resp.raw_packet_caps)) - goto end; - resp.raw_packet_caps = attr.raw_packet_caps; - resp.response_length += sizeof(resp.raw_packet_caps); - - if (ucore->outlen < resp.response_length + sizeof(resp.tm_caps)) - goto end; - resp.tm_caps.max_rndv_hdr_size = attr.tm_caps.max_rndv_hdr_size; resp.tm_caps.max_num_tags = attr.tm_caps.max_num_tags; resp.tm_caps.max_ops = attr.tm_caps.max_ops; resp.tm_caps.max_sge = attr.tm_caps.max_sge; resp.tm_caps.flags = attr.tm_caps.flags; - resp.response_length += sizeof(resp.tm_caps); - - if (ucore->outlen < resp.response_length + sizeof(resp.cq_moderation_caps)) - goto end; - resp.cq_moderation_caps.max_cq_moderation_count = attr.cq_caps.max_cq_moderation_count; resp.cq_moderation_caps.max_cq_moderation_period = attr.cq_caps.max_cq_moderation_period; - resp.response_length += sizeof(resp.cq_moderation_caps); - - if (ucore->outlen < resp.response_length + sizeof(resp.max_dm_size)) - goto end; - resp.max_dm_size = attr.max_dm_size; - resp.response_length += sizeof(resp.max_dm_size); -end: - err = ib_copy_to_udata(ucore, &resp, resp.response_length); - return err; + resp.response_length = uverbs_response_length(attrs, sizeof(resp)); + + return uverbs_response(attrs, &resp, sizeof(resp)); } -int ib_uverbs_ex_modify_cq(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) +static int ib_uverbs_ex_modify_cq(struct uverbs_attr_bundle *attrs) { - struct ib_uverbs_ex_modify_cq cmd = {}; + struct ib_uverbs_ex_modify_cq cmd; struct ib_cq *cq; - size_t required_cmd_sz; int ret; - required_cmd_sz = offsetof(typeof(cmd), reserved) + - sizeof(cmd.reserved); - if (ucore->inlen < required_cmd_sz) - return -EINVAL; - - /* sanity checks */ - if (ucore->inlen > sizeof(cmd) && - !ib_is_udata_cleared(ucore, sizeof(cmd), - ucore->inlen - sizeof(cmd))) - return -EOPNOTSUPP; - - ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen)); + ret = uverbs_request(attrs, &cmd, sizeof(cmd)); if (ret) return ret; @@ -4116,7 +3660,7 @@ int ib_uverbs_ex_modify_cq(struct ib_uverbs_file *file, if (cmd.attr_mask > IB_CQ_MODERATE) return -EOPNOTSUPP; - cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, file); + cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs); if (!cq) return -EINVAL; @@ -4126,3 +3670,381 @@ int ib_uverbs_ex_modify_cq(struct ib_uverbs_file *file, return ret; } + +/* + * Describe the input structs for write(). Some write methods have an input + * only struct, most have an input and output. If the struct has an output then + * the 'response' u64 must be the first field in the request structure. + * + * If udata is present then both the request and response structs have a + * trailing driver_data flex array. In this case the size of the base struct + * cannot be changed. + */ +#define offsetof_after(_struct, _member) \ + (offsetof(_struct, _member) + sizeof(((_struct *)NULL)->_member)) + +#define UAPI_DEF_WRITE_IO(req, resp) \ + .write.has_resp = 1 + \ + BUILD_BUG_ON_ZERO(offsetof(req, response) != 0) + \ + BUILD_BUG_ON_ZERO(sizeof(((req *)0)->response) != \ + sizeof(u64)), \ + .write.req_size = sizeof(req), .write.resp_size = sizeof(resp) + +#define UAPI_DEF_WRITE_I(req) .write.req_size = sizeof(req) + +#define UAPI_DEF_WRITE_UDATA_IO(req, resp) \ + UAPI_DEF_WRITE_IO(req, resp), \ + .write.has_udata = \ + 1 + \ + BUILD_BUG_ON_ZERO(offsetof(req, driver_data) != \ + sizeof(req)) + \ + BUILD_BUG_ON_ZERO(offsetof(resp, driver_data) != \ + sizeof(resp)) + +#define UAPI_DEF_WRITE_UDATA_I(req) \ + UAPI_DEF_WRITE_I(req), \ + .write.has_udata = \ + 1 + BUILD_BUG_ON_ZERO(offsetof(req, driver_data) != \ + sizeof(req)) + +/* + * The _EX versions are for use with WRITE_EX and allow the last struct member + * to be specified. Buffers that do not include that member will be rejected. + */ +#define UAPI_DEF_WRITE_IO_EX(req, req_last_member, resp, resp_last_member) \ + .write.has_resp = 1, \ + .write.req_size = offsetof_after(req, req_last_member), \ + .write.resp_size = offsetof_after(resp, resp_last_member) + +#define UAPI_DEF_WRITE_I_EX(req, req_last_member) \ + .write.req_size = offsetof_after(req, req_last_member) + +const struct uapi_definition uverbs_def_write_intf[] = { + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_AH, + DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_AH, + ib_uverbs_create_ah, + UAPI_DEF_WRITE_UDATA_IO( + struct ib_uverbs_create_ah, + struct ib_uverbs_create_ah_resp), + UAPI_DEF_METHOD_NEEDS_FN(create_ah)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_DESTROY_AH, + ib_uverbs_destroy_ah, + UAPI_DEF_WRITE_I(struct ib_uverbs_destroy_ah), + UAPI_DEF_METHOD_NEEDS_FN(destroy_ah))), + + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_COMP_CHANNEL, + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL, + ib_uverbs_create_comp_channel, + UAPI_DEF_WRITE_IO( + struct ib_uverbs_create_comp_channel, + struct ib_uverbs_create_comp_channel_resp))), + + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_CQ, + DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_CQ, + ib_uverbs_create_cq, + UAPI_DEF_WRITE_UDATA_IO( + struct ib_uverbs_create_cq, + struct ib_uverbs_create_cq_resp), + UAPI_DEF_METHOD_NEEDS_FN(create_cq)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_DESTROY_CQ, + ib_uverbs_destroy_cq, + UAPI_DEF_WRITE_IO(struct ib_uverbs_destroy_cq, + struct ib_uverbs_destroy_cq_resp), + UAPI_DEF_METHOD_NEEDS_FN(destroy_cq)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_POLL_CQ, + ib_uverbs_poll_cq, + UAPI_DEF_WRITE_IO(struct ib_uverbs_poll_cq, + struct ib_uverbs_poll_cq_resp), + UAPI_DEF_METHOD_NEEDS_FN(poll_cq)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_REQ_NOTIFY_CQ, + ib_uverbs_req_notify_cq, + UAPI_DEF_WRITE_I(struct ib_uverbs_req_notify_cq), + UAPI_DEF_METHOD_NEEDS_FN(req_notify_cq)), + DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_RESIZE_CQ, + ib_uverbs_resize_cq, + UAPI_DEF_WRITE_UDATA_IO( + struct ib_uverbs_resize_cq, + struct ib_uverbs_resize_cq_resp), + UAPI_DEF_METHOD_NEEDS_FN(resize_cq)), + DECLARE_UVERBS_WRITE_EX( + IB_USER_VERBS_EX_CMD_CREATE_CQ, + ib_uverbs_ex_create_cq, + UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_create_cq, + reserved, + struct ib_uverbs_ex_create_cq_resp, + response_length), + UAPI_DEF_METHOD_NEEDS_FN(create_cq)), + DECLARE_UVERBS_WRITE_EX( + IB_USER_VERBS_EX_CMD_MODIFY_CQ, + ib_uverbs_ex_modify_cq, + UAPI_DEF_WRITE_I(struct ib_uverbs_ex_modify_cq), + UAPI_DEF_METHOD_NEEDS_FN(create_cq))), + + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_DEVICE, + DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_GET_CONTEXT, + ib_uverbs_get_context, + UAPI_DEF_WRITE_UDATA_IO( + struct ib_uverbs_get_context, + struct ib_uverbs_get_context_resp)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_QUERY_DEVICE, + ib_uverbs_query_device, + UAPI_DEF_WRITE_IO(struct ib_uverbs_query_device, + struct ib_uverbs_query_device_resp)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_QUERY_PORT, + ib_uverbs_query_port, + UAPI_DEF_WRITE_IO(struct ib_uverbs_query_port, + struct ib_uverbs_query_port_resp), + UAPI_DEF_METHOD_NEEDS_FN(query_port)), + DECLARE_UVERBS_WRITE_EX( + IB_USER_VERBS_EX_CMD_QUERY_DEVICE, + ib_uverbs_ex_query_device, + UAPI_DEF_WRITE_IO_EX( + struct ib_uverbs_ex_query_device, + reserved, + struct ib_uverbs_ex_query_device_resp, + response_length), + UAPI_DEF_METHOD_NEEDS_FN(query_device)), + UAPI_DEF_OBJ_NEEDS_FN(alloc_ucontext), + UAPI_DEF_OBJ_NEEDS_FN(dealloc_ucontext)), + + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_FLOW, + DECLARE_UVERBS_WRITE_EX( + IB_USER_VERBS_EX_CMD_CREATE_FLOW, + ib_uverbs_ex_create_flow, + UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_create_flow, + flow_attr, + struct ib_uverbs_create_flow_resp, + flow_handle), + UAPI_DEF_METHOD_NEEDS_FN(create_flow)), + DECLARE_UVERBS_WRITE_EX( + IB_USER_VERBS_EX_CMD_DESTROY_FLOW, + ib_uverbs_ex_destroy_flow, + UAPI_DEF_WRITE_I(struct ib_uverbs_destroy_flow), + UAPI_DEF_METHOD_NEEDS_FN(destroy_flow))), + + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_MR, + DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_DEREG_MR, + ib_uverbs_dereg_mr, + UAPI_DEF_WRITE_I(struct ib_uverbs_dereg_mr), + UAPI_DEF_METHOD_NEEDS_FN(dereg_mr)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_REG_MR, + ib_uverbs_reg_mr, + UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_reg_mr, + struct ib_uverbs_reg_mr_resp), + UAPI_DEF_METHOD_NEEDS_FN(reg_user_mr)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_REREG_MR, + ib_uverbs_rereg_mr, + UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_rereg_mr, + struct ib_uverbs_rereg_mr_resp), + UAPI_DEF_METHOD_NEEDS_FN(rereg_user_mr))), + + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_MW, + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_ALLOC_MW, + ib_uverbs_alloc_mw, + UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_alloc_mw, + struct ib_uverbs_alloc_mw_resp), + UAPI_DEF_METHOD_NEEDS_FN(alloc_mw)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_DEALLOC_MW, + ib_uverbs_dealloc_mw, + UAPI_DEF_WRITE_I(struct ib_uverbs_dealloc_mw), + UAPI_DEF_METHOD_NEEDS_FN(dealloc_mw))), + + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_PD, + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_ALLOC_PD, + ib_uverbs_alloc_pd, + UAPI_DEF_WRITE_UDATA_IO(struct ib_uverbs_alloc_pd, + struct ib_uverbs_alloc_pd_resp), + UAPI_DEF_METHOD_NEEDS_FN(alloc_pd)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_DEALLOC_PD, + ib_uverbs_dealloc_pd, + UAPI_DEF_WRITE_I(struct ib_uverbs_dealloc_pd), + UAPI_DEF_METHOD_NEEDS_FN(dealloc_pd))), + + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_QP, + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_ATTACH_MCAST, + ib_uverbs_attach_mcast, + UAPI_DEF_WRITE_I(struct ib_uverbs_attach_mcast), + UAPI_DEF_METHOD_NEEDS_FN(attach_mcast), + UAPI_DEF_METHOD_NEEDS_FN(detach_mcast)), + DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_QP, + ib_uverbs_create_qp, + UAPI_DEF_WRITE_UDATA_IO( + struct ib_uverbs_create_qp, + struct ib_uverbs_create_qp_resp), + UAPI_DEF_METHOD_NEEDS_FN(create_qp)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_DESTROY_QP, + ib_uverbs_destroy_qp, + UAPI_DEF_WRITE_IO(struct ib_uverbs_destroy_qp, + struct ib_uverbs_destroy_qp_resp), + UAPI_DEF_METHOD_NEEDS_FN(destroy_qp)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_DETACH_MCAST, + ib_uverbs_detach_mcast, + UAPI_DEF_WRITE_I(struct ib_uverbs_detach_mcast), + UAPI_DEF_METHOD_NEEDS_FN(detach_mcast)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_MODIFY_QP, + ib_uverbs_modify_qp, + UAPI_DEF_WRITE_I(struct ib_uverbs_modify_qp), + UAPI_DEF_METHOD_NEEDS_FN(modify_qp)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_POST_RECV, + ib_uverbs_post_recv, + UAPI_DEF_WRITE_IO(struct ib_uverbs_post_recv, + struct ib_uverbs_post_recv_resp), + UAPI_DEF_METHOD_NEEDS_FN(post_recv)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_POST_SEND, + ib_uverbs_post_send, + UAPI_DEF_WRITE_IO(struct ib_uverbs_post_send, + struct ib_uverbs_post_send_resp), + UAPI_DEF_METHOD_NEEDS_FN(post_send)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_QUERY_QP, + ib_uverbs_query_qp, + UAPI_DEF_WRITE_IO(struct ib_uverbs_query_qp, + struct ib_uverbs_query_qp_resp), + UAPI_DEF_METHOD_NEEDS_FN(query_qp)), + DECLARE_UVERBS_WRITE_EX( + IB_USER_VERBS_EX_CMD_CREATE_QP, + ib_uverbs_ex_create_qp, + UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_create_qp, + comp_mask, + struct ib_uverbs_ex_create_qp_resp, + response_length), + UAPI_DEF_METHOD_NEEDS_FN(create_qp)), + DECLARE_UVERBS_WRITE_EX( + IB_USER_VERBS_EX_CMD_MODIFY_QP, + ib_uverbs_ex_modify_qp, + UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_modify_qp, + base, + struct ib_uverbs_ex_modify_qp_resp, + response_length), + UAPI_DEF_METHOD_NEEDS_FN(modify_qp))), + + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_RWQ_IND_TBL, + DECLARE_UVERBS_WRITE_EX( + IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL, + ib_uverbs_ex_create_rwq_ind_table, + UAPI_DEF_WRITE_IO_EX( + struct ib_uverbs_ex_create_rwq_ind_table, + log_ind_tbl_size, + struct ib_uverbs_ex_create_rwq_ind_table_resp, + ind_tbl_num), + UAPI_DEF_METHOD_NEEDS_FN(create_rwq_ind_table)), + DECLARE_UVERBS_WRITE_EX( + IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL, + ib_uverbs_ex_destroy_rwq_ind_table, + UAPI_DEF_WRITE_I( + struct ib_uverbs_ex_destroy_rwq_ind_table), + UAPI_DEF_METHOD_NEEDS_FN(destroy_rwq_ind_table))), + + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_WQ, + DECLARE_UVERBS_WRITE_EX( + IB_USER_VERBS_EX_CMD_CREATE_WQ, + ib_uverbs_ex_create_wq, + UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_create_wq, + max_sge, + struct ib_uverbs_ex_create_wq_resp, + wqn), + UAPI_DEF_METHOD_NEEDS_FN(create_wq)), + DECLARE_UVERBS_WRITE_EX( + IB_USER_VERBS_EX_CMD_DESTROY_WQ, + ib_uverbs_ex_destroy_wq, + UAPI_DEF_WRITE_IO_EX(struct ib_uverbs_ex_destroy_wq, + wq_handle, + struct ib_uverbs_ex_destroy_wq_resp, + reserved), + UAPI_DEF_METHOD_NEEDS_FN(destroy_wq)), + DECLARE_UVERBS_WRITE_EX( + IB_USER_VERBS_EX_CMD_MODIFY_WQ, + ib_uverbs_ex_modify_wq, + UAPI_DEF_WRITE_I_EX(struct ib_uverbs_ex_modify_wq, + curr_wq_state), + UAPI_DEF_METHOD_NEEDS_FN(modify_wq))), + + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_SRQ, + DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_SRQ, + ib_uverbs_create_srq, + UAPI_DEF_WRITE_UDATA_IO( + struct ib_uverbs_create_srq, + struct ib_uverbs_create_srq_resp), + UAPI_DEF_METHOD_NEEDS_FN(create_srq)), + DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_CREATE_XSRQ, + ib_uverbs_create_xsrq, + UAPI_DEF_WRITE_UDATA_IO( + struct ib_uverbs_create_xsrq, + struct ib_uverbs_create_srq_resp), + UAPI_DEF_METHOD_NEEDS_FN(create_srq)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_DESTROY_SRQ, + ib_uverbs_destroy_srq, + UAPI_DEF_WRITE_IO(struct ib_uverbs_destroy_srq, + struct ib_uverbs_destroy_srq_resp), + UAPI_DEF_METHOD_NEEDS_FN(destroy_srq)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_MODIFY_SRQ, + ib_uverbs_modify_srq, + UAPI_DEF_WRITE_UDATA_I(struct ib_uverbs_modify_srq), + UAPI_DEF_METHOD_NEEDS_FN(modify_srq)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_POST_SRQ_RECV, + ib_uverbs_post_srq_recv, + UAPI_DEF_WRITE_IO(struct ib_uverbs_post_srq_recv, + struct ib_uverbs_post_srq_recv_resp), + UAPI_DEF_METHOD_NEEDS_FN(post_srq_recv)), + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_QUERY_SRQ, + ib_uverbs_query_srq, + UAPI_DEF_WRITE_IO(struct ib_uverbs_query_srq, + struct ib_uverbs_query_srq_resp), + UAPI_DEF_METHOD_NEEDS_FN(query_srq))), + + DECLARE_UVERBS_OBJECT( + UVERBS_OBJECT_XRCD, + DECLARE_UVERBS_WRITE( + IB_USER_VERBS_CMD_CLOSE_XRCD, + ib_uverbs_close_xrcd, + UAPI_DEF_WRITE_I(struct ib_uverbs_close_xrcd), + UAPI_DEF_METHOD_NEEDS_FN(dealloc_xrcd)), + DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_OPEN_QP, + ib_uverbs_open_qp, + UAPI_DEF_WRITE_UDATA_IO( + struct ib_uverbs_open_qp, + struct ib_uverbs_create_qp_resp)), + DECLARE_UVERBS_WRITE(IB_USER_VERBS_CMD_OPEN_XRCD, + ib_uverbs_open_xrcd, + UAPI_DEF_WRITE_UDATA_IO( + struct ib_uverbs_open_xrcd, + struct ib_uverbs_open_xrcd_resp), + UAPI_DEF_METHOD_NEEDS_FN(alloc_xrcd))), + + {}, +}; diff --git a/drivers/infiniband/core/uverbs_ioctl.c b/drivers/infiniband/core/uverbs_ioctl.c index b0e493e8d860..8c81ff698052 100644 --- a/drivers/infiniband/core/uverbs_ioctl.c +++ b/drivers/infiniband/core/uverbs_ioctl.c @@ -404,8 +404,7 @@ static int uverbs_set_attr(struct bundle_priv *pbundle, static int ib_uverbs_run_method(struct bundle_priv *pbundle, unsigned int num_attrs) { - int (*handler)(struct ib_uverbs_file *ufile, - struct uverbs_attr_bundle *ctx); + int (*handler)(struct uverbs_attr_bundle *attrs); size_t uattrs_size = array_size(sizeof(*pbundle->uattrs), num_attrs); unsigned int destroy_bkey = pbundle->method_elm->destroy_bkey; unsigned int i; @@ -436,6 +435,11 @@ static int ib_uverbs_run_method(struct bundle_priv *pbundle, pbundle->method_elm->key_bitmap_len))) return -EINVAL; + if (pbundle->method_elm->has_udata) + uverbs_fill_udata(&pbundle->bundle, + &pbundle->bundle.driver_udata, + UVERBS_ATTR_UHW_IN, UVERBS_ATTR_UHW_OUT); + if (destroy_bkey != UVERBS_API_ATTR_BKEY_LEN) { struct uverbs_obj_attr *destroy_attr = &pbundle->bundle.attrs[destroy_bkey].obj_attr; @@ -445,10 +449,10 @@ static int ib_uverbs_run_method(struct bundle_priv *pbundle, return ret; __clear_bit(destroy_bkey, pbundle->uobj_finalize); - ret = handler(pbundle->bundle.ufile, &pbundle->bundle); + ret = handler(&pbundle->bundle); uobj_put_destroy(destroy_attr->uobject); } else { - ret = handler(pbundle->bundle.ufile, &pbundle->bundle); + ret = handler(&pbundle->bundle); } /* @@ -662,35 +666,37 @@ int uverbs_get_flags32(u32 *to, const struct uverbs_attr_bundle *attrs_bundle, EXPORT_SYMBOL(uverbs_get_flags32); /* - * This is for ease of conversion. The purpose is to convert all drivers to - * use uverbs_attr_bundle instead of ib_udata. Assume attr == 0 is input and - * attr == 1 is output. + * Fill a ib_udata struct (core or uhw) using the given attribute IDs. + * This is primarily used to convert the UVERBS_ATTR_UHW() into the + * ib_udata format used by the drivers. */ -void create_udata(struct uverbs_attr_bundle *bundle, struct ib_udata *udata) +void uverbs_fill_udata(struct uverbs_attr_bundle *bundle, + struct ib_udata *udata, unsigned int attr_in, + unsigned int attr_out) { struct bundle_priv *pbundle = container_of(bundle, struct bundle_priv, bundle); - const struct uverbs_attr *uhw_in = - uverbs_attr_get(bundle, UVERBS_ATTR_UHW_IN); - const struct uverbs_attr *uhw_out = - uverbs_attr_get(bundle, UVERBS_ATTR_UHW_OUT); - - if (!IS_ERR(uhw_in)) { - udata->inlen = uhw_in->ptr_attr.len; - if (uverbs_attr_ptr_is_inline(uhw_in)) + const struct uverbs_attr *in = + uverbs_attr_get(&pbundle->bundle, attr_in); + const struct uverbs_attr *out = + uverbs_attr_get(&pbundle->bundle, attr_out); + + if (!IS_ERR(in)) { + udata->inlen = in->ptr_attr.len; + if (uverbs_attr_ptr_is_inline(in)) udata->inbuf = - &pbundle->user_attrs[uhw_in->ptr_attr.uattr_idx] + &pbundle->user_attrs[in->ptr_attr.uattr_idx] .data; else - udata->inbuf = u64_to_user_ptr(uhw_in->ptr_attr.data); + udata->inbuf = u64_to_user_ptr(in->ptr_attr.data); } else { udata->inbuf = NULL; udata->inlen = 0; } - if (!IS_ERR(uhw_out)) { - udata->outbuf = u64_to_user_ptr(uhw_out->ptr_attr.data); - udata->outlen = uhw_out->ptr_attr.len; + if (!IS_ERR(out)) { + udata->outbuf = u64_to_user_ptr(out->ptr_attr.data); + udata->outlen = out->ptr_attr.len; } else { udata->outbuf = NULL; udata->outlen = 0; @@ -745,3 +751,14 @@ int _uverbs_get_const(s64 *to, const struct uverbs_attr_bundle *attrs_bundle, return 0; } EXPORT_SYMBOL(_uverbs_get_const); + +int uverbs_copy_to_struct_or_zero(const struct uverbs_attr_bundle *bundle, + size_t idx, const void *from, size_t size) +{ + const struct uverbs_attr *attr = uverbs_attr_get(bundle, idx); + + if (clear_user(u64_to_user_ptr(attr->ptr_attr.data), + attr->ptr_attr.len)) + return -EFAULT; + return uverbs_copy_to(bundle, idx, from, size); +} diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index 6d373f5515b7..9f9172eb1512 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -74,64 +74,6 @@ static dev_t dynamic_uverbs_dev; static struct class *uverbs_class; static DEFINE_IDA(uverbs_ida); - -static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) = { - [IB_USER_VERBS_CMD_GET_CONTEXT] = ib_uverbs_get_context, - [IB_USER_VERBS_CMD_QUERY_DEVICE] = ib_uverbs_query_device, - [IB_USER_VERBS_CMD_QUERY_PORT] = ib_uverbs_query_port, - [IB_USER_VERBS_CMD_ALLOC_PD] = ib_uverbs_alloc_pd, - [IB_USER_VERBS_CMD_DEALLOC_PD] = ib_uverbs_dealloc_pd, - [IB_USER_VERBS_CMD_REG_MR] = ib_uverbs_reg_mr, - [IB_USER_VERBS_CMD_REREG_MR] = ib_uverbs_rereg_mr, - [IB_USER_VERBS_CMD_DEREG_MR] = ib_uverbs_dereg_mr, - [IB_USER_VERBS_CMD_ALLOC_MW] = ib_uverbs_alloc_mw, - [IB_USER_VERBS_CMD_DEALLOC_MW] = ib_uverbs_dealloc_mw, - [IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL] = ib_uverbs_create_comp_channel, - [IB_USER_VERBS_CMD_CREATE_CQ] = ib_uverbs_create_cq, - [IB_USER_VERBS_CMD_RESIZE_CQ] = ib_uverbs_resize_cq, - [IB_USER_VERBS_CMD_POLL_CQ] = ib_uverbs_poll_cq, - [IB_USER_VERBS_CMD_REQ_NOTIFY_CQ] = ib_uverbs_req_notify_cq, - [IB_USER_VERBS_CMD_DESTROY_CQ] = ib_uverbs_destroy_cq, - [IB_USER_VERBS_CMD_CREATE_QP] = ib_uverbs_create_qp, - [IB_USER_VERBS_CMD_QUERY_QP] = ib_uverbs_query_qp, - [IB_USER_VERBS_CMD_MODIFY_QP] = ib_uverbs_modify_qp, - [IB_USER_VERBS_CMD_DESTROY_QP] = ib_uverbs_destroy_qp, - [IB_USER_VERBS_CMD_POST_SEND] = ib_uverbs_post_send, - [IB_USER_VERBS_CMD_POST_RECV] = ib_uverbs_post_recv, - [IB_USER_VERBS_CMD_POST_SRQ_RECV] = ib_uverbs_post_srq_recv, - [IB_USER_VERBS_CMD_CREATE_AH] = ib_uverbs_create_ah, - [IB_USER_VERBS_CMD_DESTROY_AH] = ib_uverbs_destroy_ah, - [IB_USER_VERBS_CMD_ATTACH_MCAST] = ib_uverbs_attach_mcast, - [IB_USER_VERBS_CMD_DETACH_MCAST] = ib_uverbs_detach_mcast, - [IB_USER_VERBS_CMD_CREATE_SRQ] = ib_uverbs_create_srq, - [IB_USER_VERBS_CMD_MODIFY_SRQ] = ib_uverbs_modify_srq, - [IB_USER_VERBS_CMD_QUERY_SRQ] = ib_uverbs_query_srq, - [IB_USER_VERBS_CMD_DESTROY_SRQ] = ib_uverbs_destroy_srq, - [IB_USER_VERBS_CMD_OPEN_XRCD] = ib_uverbs_open_xrcd, - [IB_USER_VERBS_CMD_CLOSE_XRCD] = ib_uverbs_close_xrcd, - [IB_USER_VERBS_CMD_CREATE_XSRQ] = ib_uverbs_create_xsrq, - [IB_USER_VERBS_CMD_OPEN_QP] = ib_uverbs_open_qp, -}; - -static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file, - struct ib_udata *ucore, - struct ib_udata *uhw) = { - [IB_USER_VERBS_EX_CMD_CREATE_FLOW] = ib_uverbs_ex_create_flow, - [IB_USER_VERBS_EX_CMD_DESTROY_FLOW] = ib_uverbs_ex_destroy_flow, - [IB_USER_VERBS_EX_CMD_QUERY_DEVICE] = ib_uverbs_ex_query_device, - [IB_USER_VERBS_EX_CMD_CREATE_CQ] = ib_uverbs_ex_create_cq, - [IB_USER_VERBS_EX_CMD_CREATE_QP] = ib_uverbs_ex_create_qp, - [IB_USER_VERBS_EX_CMD_CREATE_WQ] = ib_uverbs_ex_create_wq, - [IB_USER_VERBS_EX_CMD_MODIFY_WQ] = ib_uverbs_ex_modify_wq, - [IB_USER_VERBS_EX_CMD_DESTROY_WQ] = ib_uverbs_ex_destroy_wq, - [IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL] = ib_uverbs_ex_create_rwq_ind_table, - [IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL] = ib_uverbs_ex_destroy_rwq_ind_table, - [IB_USER_VERBS_EX_CMD_MODIFY_QP] = ib_uverbs_ex_modify_qp, - [IB_USER_VERBS_EX_CMD_MODIFY_CQ] = ib_uverbs_ex_modify_cq, -}; - static void ib_uverbs_add_one(struct ib_device *device); static void ib_uverbs_remove_one(struct ib_device *device, void *client_data); @@ -139,7 +81,7 @@ static void ib_uverbs_remove_one(struct ib_device *device, void *client_data); * Must be called with the ufile->device->disassociate_srcu held, and the lock * must be held until use of the ucontext is finished. */ -struct ib_ucontext *ib_uverbs_get_ucontext(struct ib_uverbs_file *ufile) +struct ib_ucontext *ib_uverbs_get_ucontext_file(struct ib_uverbs_file *ufile) { /* * We do not hold the hw_destroy_rwsem lock for this flow, instead @@ -157,14 +99,14 @@ struct ib_ucontext *ib_uverbs_get_ucontext(struct ib_uverbs_file *ufile) return ucontext; } -EXPORT_SYMBOL(ib_uverbs_get_ucontext); +EXPORT_SYMBOL(ib_uverbs_get_ucontext_file); int uverbs_dealloc_mw(struct ib_mw *mw) { struct ib_pd *pd = mw->pd; int ret; - ret = mw->device->dealloc_mw(mw); + ret = mw->device->ops.dealloc_mw(mw); if (!ret) atomic_dec(&pd->usecnt); return ret; @@ -255,7 +197,7 @@ void ib_uverbs_release_file(struct kref *ref) srcu_key = srcu_read_lock(&file->device->disassociate_srcu); ib_dev = srcu_dereference(file->device->ib_dev, &file->device->disassociate_srcu); - if (ib_dev && !ib_dev->disassociate_ucontext) + if (ib_dev && !ib_dev->ops.disassociate_ucontext) module_put(ib_dev->owner); srcu_read_unlock(&file->device->disassociate_srcu, srcu_key); @@ -646,51 +588,19 @@ err_put_refs: return filp; } -static bool verify_command_mask(struct ib_uverbs_file *ufile, u32 command, - bool extended) -{ - if (!extended) - return ufile->uverbs_cmd_mask & BIT_ULL(command); - - return ufile->uverbs_ex_cmd_mask & BIT_ULL(command); -} - -static bool verify_command_idx(u32 command, bool extended) -{ - if (extended) - return command < ARRAY_SIZE(uverbs_ex_cmd_table) && - uverbs_ex_cmd_table[command]; - - return command < ARRAY_SIZE(uverbs_cmd_table) && - uverbs_cmd_table[command]; -} - -static ssize_t process_hdr(struct ib_uverbs_cmd_hdr *hdr, - u32 *command, bool *extended) -{ - if (hdr->command & ~(u32)(IB_USER_VERBS_CMD_FLAG_EXTENDED | - IB_USER_VERBS_CMD_COMMAND_MASK)) - return -EINVAL; - - *command = hdr->command & IB_USER_VERBS_CMD_COMMAND_MASK; - *extended = hdr->command & IB_USER_VERBS_CMD_FLAG_EXTENDED; - - if (!verify_command_idx(*command, *extended)) - return -EOPNOTSUPP; - - return 0; -} - static ssize_t verify_hdr(struct ib_uverbs_cmd_hdr *hdr, - struct ib_uverbs_ex_cmd_hdr *ex_hdr, - size_t count, bool extended) + struct ib_uverbs_ex_cmd_hdr *ex_hdr, size_t count, + const struct uverbs_api_write_method *method_elm) { - if (extended) { + if (method_elm->is_ex) { count -= sizeof(*hdr) + sizeof(*ex_hdr); if ((hdr->in_words + ex_hdr->provider_in_words) * 8 != count) return -EINVAL; + if (hdr->in_words * 8 < method_elm->req_size) + return -ENOSPC; + if (ex_hdr->cmd_hdr_reserved) return -EINVAL; @@ -698,6 +608,9 @@ static ssize_t verify_hdr(struct ib_uverbs_cmd_hdr *hdr, if (!hdr->out_words && !ex_hdr->provider_out_words) return -EINVAL; + if (hdr->out_words * 8 < method_elm->resp_size) + return -ENOSPC; + if (!access_ok(VERIFY_WRITE, u64_to_user_ptr(ex_hdr->response), (hdr->out_words + ex_hdr->provider_out_words) * 8)) @@ -714,6 +627,24 @@ static ssize_t verify_hdr(struct ib_uverbs_cmd_hdr *hdr, if (hdr->in_words * 4 != count) return -EINVAL; + if (count < method_elm->req_size + sizeof(hdr)) { + /* + * rdma-core v18 and v19 have a bug where they send DESTROY_CQ + * with a 16 byte write instead of 24. Old kernels didn't + * check the size so they allowed this. Now that the size is + * checked provide a compatibility work around to not break + * those userspaces. + */ + if (hdr->command == IB_USER_VERBS_CMD_DESTROY_CQ && + count == 16) { + hdr->in_words = 6; + return 0; + } + return -ENOSPC; + } + if (hdr->out_words * 4 < method_elm->resp_size) + return -ENOSPC; + return 0; } @@ -721,11 +652,12 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, size_t count, loff_t *pos) { struct ib_uverbs_file *file = filp->private_data; + const struct uverbs_api_write_method *method_elm; + struct uverbs_api *uapi = file->device->uapi; struct ib_uverbs_ex_cmd_hdr ex_hdr; struct ib_uverbs_cmd_hdr hdr; - bool extended; + struct uverbs_attr_bundle bundle; int srcu_key; - u32 command; ssize_t ret; if (!ib_safe_file_access(filp)) { @@ -740,57 +672,92 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, if (copy_from_user(&hdr, buf, sizeof(hdr))) return -EFAULT; - ret = process_hdr(&hdr, &command, &extended); - if (ret) - return ret; + method_elm = uapi_get_method(uapi, hdr.command); + if (IS_ERR(method_elm)) + return PTR_ERR(method_elm); - if (extended) { + if (method_elm->is_ex) { if (count < (sizeof(hdr) + sizeof(ex_hdr))) return -EINVAL; if (copy_from_user(&ex_hdr, buf + sizeof(hdr), sizeof(ex_hdr))) return -EFAULT; } - ret = verify_hdr(&hdr, &ex_hdr, count, extended); + ret = verify_hdr(&hdr, &ex_hdr, count, method_elm); if (ret) return ret; srcu_key = srcu_read_lock(&file->device->disassociate_srcu); - if (!verify_command_mask(file, command, extended)) { - ret = -EOPNOTSUPP; - goto out; - } - buf += sizeof(hdr); - if (!extended) { - ret = uverbs_cmd_table[command](file, buf, - hdr.in_words * 4, - hdr.out_words * 4); - } else { - struct ib_udata ucore; - struct ib_udata uhw; + bundle.ufile = file; + if (!method_elm->is_ex) { + size_t in_len = hdr.in_words * 4 - sizeof(hdr); + size_t out_len = hdr.out_words * 4; + u64 response = 0; + + if (method_elm->has_udata) { + bundle.driver_udata.inlen = + in_len - method_elm->req_size; + in_len = method_elm->req_size; + if (bundle.driver_udata.inlen) + bundle.driver_udata.inbuf = buf + in_len; + else + bundle.driver_udata.inbuf = NULL; + } else { + memset(&bundle.driver_udata, 0, + sizeof(bundle.driver_udata)); + } + + if (method_elm->has_resp) { + /* + * The macros check that if has_resp is set + * then the command request structure starts + * with a '__aligned u64 response' member. + */ + ret = get_user(response, (const u64 *)buf); + if (ret) + goto out_unlock; + + if (method_elm->has_udata) { + bundle.driver_udata.outlen = + out_len - method_elm->resp_size; + out_len = method_elm->resp_size; + if (bundle.driver_udata.outlen) + bundle.driver_udata.outbuf = + u64_to_user_ptr(response + + out_len); + else + bundle.driver_udata.outbuf = NULL; + } + } else { + bundle.driver_udata.outlen = 0; + bundle.driver_udata.outbuf = NULL; + } + ib_uverbs_init_udata_buf_or_null( + &bundle.ucore, buf, u64_to_user_ptr(response), + in_len, out_len); + } else { buf += sizeof(ex_hdr); - ib_uverbs_init_udata_buf_or_null(&ucore, buf, + ib_uverbs_init_udata_buf_or_null(&bundle.ucore, buf, u64_to_user_ptr(ex_hdr.response), hdr.in_words * 8, hdr.out_words * 8); - ib_uverbs_init_udata_buf_or_null(&uhw, - buf + ucore.inlen, - u64_to_user_ptr(ex_hdr.response) + ucore.outlen, - ex_hdr.provider_in_words * 8, - ex_hdr.provider_out_words * 8); + ib_uverbs_init_udata_buf_or_null( + &bundle.driver_udata, buf + bundle.ucore.inlen, + u64_to_user_ptr(ex_hdr.response) + bundle.ucore.outlen, + ex_hdr.provider_in_words * 8, + ex_hdr.provider_out_words * 8); - ret = uverbs_ex_cmd_table[command](file, &ucore, &uhw); - ret = (ret) ? : count; } -out: + ret = method_elm->handler(&bundle); +out_unlock: srcu_read_unlock(&file->device->disassociate_srcu, srcu_key); - return ret; + return (ret) ? : count; } static int ib_uverbs_mmap(struct file *filp, struct vm_area_struct *vma) @@ -801,13 +768,13 @@ static int ib_uverbs_mmap(struct file *filp, struct vm_area_struct *vma) int srcu_key; srcu_key = srcu_read_lock(&file->device->disassociate_srcu); - ucontext = ib_uverbs_get_ucontext(file); + ucontext = ib_uverbs_get_ucontext_file(file); if (IS_ERR(ucontext)) { ret = PTR_ERR(ucontext); goto out; } - ret = ucontext->device->mmap(ucontext, vma); + ret = ucontext->device->ops.mmap(ucontext, vma); out: srcu_read_unlock(&file->device->disassociate_srcu, srcu_key); return ret; @@ -1069,7 +1036,7 @@ static int ib_uverbs_open(struct inode *inode, struct file *filp) /* In case IB device supports disassociate ucontext, there is no hard * dependency between uverbs device and its low level device. */ - module_dependent = !(ib_dev->disassociate_ucontext); + module_dependent = !(ib_dev->ops.disassociate_ucontext); if (module_dependent) { if (!try_module_get(ib_dev->owner)) { @@ -1102,9 +1069,6 @@ static int ib_uverbs_open(struct inode *inode, struct file *filp) mutex_unlock(&dev->lists_mutex); srcu_read_unlock(&dev->disassociate_srcu, srcu_key); - file->uverbs_cmd_mask = ib_dev->uverbs_cmd_mask; - file->uverbs_ex_cmd_mask = ib_dev->uverbs_ex_cmd_mask; - setup_ufile_idr_uobject(file); return nonseekable_open(inode, filp); @@ -1224,7 +1188,7 @@ static int ib_uverbs_create_uapi(struct ib_device *device, { struct uverbs_api *uapi; - uapi = uverbs_alloc_api(device->driver_specs, device->driver_id); + uapi = uverbs_alloc_api(device); if (IS_ERR(uapi)) return PTR_ERR(uapi); @@ -1239,7 +1203,7 @@ static void ib_uverbs_add_one(struct ib_device *device) struct ib_uverbs_device *uverbs_dev; int ret; - if (!device->alloc_ucontext) + if (!device->ops.alloc_ucontext) return; uverbs_dev = kzalloc(sizeof(*uverbs_dev), GFP_KERNEL); @@ -1285,7 +1249,7 @@ static void ib_uverbs_add_one(struct ib_device *device) dev_set_name(&uverbs_dev->dev, "uverbs%d", uverbs_dev->devnum); cdev_init(&uverbs_dev->cdev, - device->mmap ? &uverbs_mmap_fops : &uverbs_fops); + device->ops.mmap ? &uverbs_mmap_fops : &uverbs_fops); uverbs_dev->cdev.owner = THIS_MODULE; ret = cdev_device_add(&uverbs_dev->cdev, &uverbs_dev->dev); @@ -1373,7 +1337,7 @@ static void ib_uverbs_remove_one(struct ib_device *device, void *client_data) cdev_device_del(&uverbs_dev->cdev, &uverbs_dev->dev); ida_free(&uverbs_ida, uverbs_dev->devnum); - if (device->disassociate_ucontext) { + if (device->ops.disassociate_ucontext) { /* We disassociate HW resources and immediately return. * Userspace will see a EIO errno for all future access. * Upon returning, ib_device may be freed internally and is not diff --git a/drivers/infiniband/core/uverbs_std_types.c b/drivers/infiniband/core/uverbs_std_types.c index 203cc96ac6f5..cbc72312eb41 100644 --- a/drivers/infiniband/core/uverbs_std_types.c +++ b/drivers/infiniband/core/uverbs_std_types.c @@ -42,7 +42,8 @@ static int uverbs_free_ah(struct ib_uobject *uobject, enum rdma_remove_reason why) { - return rdma_destroy_ah((struct ib_ah *)uobject->object); + return rdma_destroy_ah((struct ib_ah *)uobject->object, + RDMA_DESTROY_AH_SLEEPABLE); } static int uverbs_free_flow(struct ib_uobject *uobject, @@ -54,7 +55,7 @@ static int uverbs_free_flow(struct ib_uobject *uobject, struct ib_qp *qp = flow->qp; int ret; - ret = flow->device->destroy_flow(flow); + ret = flow->device->ops.destroy_flow(flow); if (!ret) { if (qp) atomic_dec(&qp->usecnt); @@ -210,8 +211,7 @@ static int uverbs_hot_unplug_completion_event_file(struct ib_uobject *uobj, return 0; }; -int uverbs_destroy_def_handler(struct ib_uverbs_file *file, - struct uverbs_attr_bundle *attrs) +int uverbs_destroy_def_handler(struct uverbs_attr_bundle *attrs) { return 0; } @@ -229,58 +229,106 @@ DECLARE_UVERBS_NAMED_OBJECT( UVERBS_OBJECT_QP, UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uqp_object), uverbs_free_qp)); +DECLARE_UVERBS_NAMED_METHOD_DESTROY( + UVERBS_METHOD_MW_DESTROY, + UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_MW_HANDLE, + UVERBS_OBJECT_MW, + UVERBS_ACCESS_DESTROY, + UA_MANDATORY)); + DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_MW, - UVERBS_TYPE_ALLOC_IDR(uverbs_free_mw)); + UVERBS_TYPE_ALLOC_IDR(uverbs_free_mw), + &UVERBS_METHOD(UVERBS_METHOD_MW_DESTROY)); DECLARE_UVERBS_NAMED_OBJECT( UVERBS_OBJECT_SRQ, UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_usrq_object), uverbs_free_srq)); +DECLARE_UVERBS_NAMED_METHOD_DESTROY( + UVERBS_METHOD_AH_DESTROY, + UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_AH_HANDLE, + UVERBS_OBJECT_AH, + UVERBS_ACCESS_DESTROY, + UA_MANDATORY)); + DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_AH, - UVERBS_TYPE_ALLOC_IDR(uverbs_free_ah)); + UVERBS_TYPE_ALLOC_IDR(uverbs_free_ah), + &UVERBS_METHOD(UVERBS_METHOD_AH_DESTROY)); + +DECLARE_UVERBS_NAMED_METHOD_DESTROY( + UVERBS_METHOD_FLOW_DESTROY, + UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_FLOW_HANDLE, + UVERBS_OBJECT_FLOW, + UVERBS_ACCESS_DESTROY, + UA_MANDATORY)); DECLARE_UVERBS_NAMED_OBJECT( UVERBS_OBJECT_FLOW, UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uflow_object), - uverbs_free_flow)); + uverbs_free_flow), + &UVERBS_METHOD(UVERBS_METHOD_FLOW_DESTROY)); DECLARE_UVERBS_NAMED_OBJECT( UVERBS_OBJECT_WQ, UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uwq_object), uverbs_free_wq)); +DECLARE_UVERBS_NAMED_METHOD_DESTROY( + UVERBS_METHOD_RWQ_IND_TBL_DESTROY, + UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_RWQ_IND_TBL_HANDLE, + UVERBS_OBJECT_RWQ_IND_TBL, + UVERBS_ACCESS_DESTROY, + UA_MANDATORY)); + DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_RWQ_IND_TBL, - UVERBS_TYPE_ALLOC_IDR(uverbs_free_rwq_ind_tbl)); + UVERBS_TYPE_ALLOC_IDR(uverbs_free_rwq_ind_tbl), + &UVERBS_METHOD(UVERBS_METHOD_RWQ_IND_TBL_DESTROY)); + +DECLARE_UVERBS_NAMED_METHOD_DESTROY( + UVERBS_METHOD_XRCD_DESTROY, + UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_XRCD_HANDLE, + UVERBS_OBJECT_XRCD, + UVERBS_ACCESS_DESTROY, + UA_MANDATORY)); DECLARE_UVERBS_NAMED_OBJECT( UVERBS_OBJECT_XRCD, UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uxrcd_object), - uverbs_free_xrcd)); + uverbs_free_xrcd), + &UVERBS_METHOD(UVERBS_METHOD_XRCD_DESTROY)); + +DECLARE_UVERBS_NAMED_METHOD_DESTROY( + UVERBS_METHOD_PD_DESTROY, + UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_PD_HANDLE, + UVERBS_OBJECT_PD, + UVERBS_ACCESS_DESTROY, + UA_MANDATORY)); DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_PD, - UVERBS_TYPE_ALLOC_IDR(uverbs_free_pd)); - -DECLARE_UVERBS_GLOBAL_METHODS(UVERBS_OBJECT_DEVICE); - -DECLARE_UVERBS_OBJECT_TREE(uverbs_default_objects, - &UVERBS_OBJECT(UVERBS_OBJECT_DEVICE), - &UVERBS_OBJECT(UVERBS_OBJECT_PD), - &UVERBS_OBJECT(UVERBS_OBJECT_MR), - &UVERBS_OBJECT(UVERBS_OBJECT_COMP_CHANNEL), - &UVERBS_OBJECT(UVERBS_OBJECT_CQ), - &UVERBS_OBJECT(UVERBS_OBJECT_QP), - &UVERBS_OBJECT(UVERBS_OBJECT_AH), - &UVERBS_OBJECT(UVERBS_OBJECT_MW), - &UVERBS_OBJECT(UVERBS_OBJECT_SRQ), - &UVERBS_OBJECT(UVERBS_OBJECT_FLOW), - &UVERBS_OBJECT(UVERBS_OBJECT_WQ), - &UVERBS_OBJECT(UVERBS_OBJECT_RWQ_IND_TBL), - &UVERBS_OBJECT(UVERBS_OBJECT_XRCD), - &UVERBS_OBJECT(UVERBS_OBJECT_FLOW_ACTION), - &UVERBS_OBJECT(UVERBS_OBJECT_DM), - &UVERBS_OBJECT(UVERBS_OBJECT_COUNTERS)); - -const struct uverbs_object_tree_def *uverbs_default_get_objects(void) -{ - return &uverbs_default_objects; -} + UVERBS_TYPE_ALLOC_IDR(uverbs_free_pd), + &UVERBS_METHOD(UVERBS_METHOD_PD_DESTROY)); + +const struct uapi_definition uverbs_def_obj_intf[] = { + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_PD, + UAPI_DEF_OBJ_NEEDS_FN(dealloc_pd)), + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_COMP_CHANNEL, + UAPI_DEF_OBJ_NEEDS_FN(dealloc_pd)), + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_QP, + UAPI_DEF_OBJ_NEEDS_FN(destroy_qp)), + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_AH, + UAPI_DEF_OBJ_NEEDS_FN(destroy_ah)), + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_MW, + UAPI_DEF_OBJ_NEEDS_FN(dealloc_mw)), + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_SRQ, + UAPI_DEF_OBJ_NEEDS_FN(destroy_srq)), + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_FLOW, + UAPI_DEF_OBJ_NEEDS_FN(destroy_flow)), + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_WQ, + UAPI_DEF_OBJ_NEEDS_FN(destroy_wq)), + UAPI_DEF_CHAIN_OBJ_TREE_NAMED( + UVERBS_OBJECT_RWQ_IND_TBL, + UAPI_DEF_OBJ_NEEDS_FN(destroy_rwq_ind_table)), + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_XRCD, + UAPI_DEF_OBJ_NEEDS_FN(dealloc_xrcd)), + {} +}; diff --git a/drivers/infiniband/core/uverbs_std_types_counters.c b/drivers/infiniband/core/uverbs_std_types_counters.c index a0ffdcf9a51c..309c5e80988d 100644 --- a/drivers/infiniband/core/uverbs_std_types_counters.c +++ b/drivers/infiniband/core/uverbs_std_types_counters.c @@ -44,11 +44,11 @@ static int uverbs_free_counters(struct ib_uobject *uobject, if (ret) return ret; - return counters->device->destroy_counters(counters); + return counters->device->ops.destroy_counters(counters); } static int UVERBS_HANDLER(UVERBS_METHOD_COUNTERS_CREATE)( - struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs) + struct uverbs_attr_bundle *attrs) { struct ib_uobject *uobj = uverbs_attr_get_uobject( attrs, UVERBS_ATTR_CREATE_COUNTERS_HANDLE); @@ -61,10 +61,10 @@ static int UVERBS_HANDLER(UVERBS_METHOD_COUNTERS_CREATE)( * have the ability to remove methods from parse tree once * such condition is met. */ - if (!ib_dev->create_counters) + if (!ib_dev->ops.create_counters) return -EOPNOTSUPP; - counters = ib_dev->create_counters(ib_dev, attrs); + counters = ib_dev->ops.create_counters(ib_dev, attrs); if (IS_ERR(counters)) { ret = PTR_ERR(counters); goto err_create_counters; @@ -82,7 +82,7 @@ err_create_counters: } static int UVERBS_HANDLER(UVERBS_METHOD_COUNTERS_READ)( - struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs) + struct uverbs_attr_bundle *attrs) { struct ib_counters_read_attr read_attr = {}; const struct uverbs_attr *uattr; @@ -90,7 +90,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_COUNTERS_READ)( uverbs_attr_get_obj(attrs, UVERBS_ATTR_READ_COUNTERS_HANDLE); int ret; - if (!counters->device->read_counters) + if (!counters->device->ops.read_counters) return -EOPNOTSUPP; if (!atomic_read(&counters->usecnt)) @@ -109,7 +109,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_COUNTERS_READ)( if (IS_ERR(read_attr.counters_buff)) return PTR_ERR(read_attr.counters_buff); - ret = counters->device->read_counters(counters, &read_attr, attrs); + ret = counters->device->ops.read_counters(counters, &read_attr, attrs); if (ret) return ret; @@ -149,3 +149,9 @@ DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_COUNTERS, &UVERBS_METHOD(UVERBS_METHOD_COUNTERS_CREATE), &UVERBS_METHOD(UVERBS_METHOD_COUNTERS_DESTROY), &UVERBS_METHOD(UVERBS_METHOD_COUNTERS_READ)); + +const struct uapi_definition uverbs_def_obj_counters[] = { + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_COUNTERS, + UAPI_DEF_OBJ_NEEDS_FN(destroy_counters)), + {} +}; diff --git a/drivers/infiniband/core/uverbs_std_types_cq.c b/drivers/infiniband/core/uverbs_std_types_cq.c index 5b5f2052cd52..a59ea89e3f2b 100644 --- a/drivers/infiniband/core/uverbs_std_types_cq.c +++ b/drivers/infiniband/core/uverbs_std_types_cq.c @@ -58,13 +58,12 @@ static int uverbs_free_cq(struct ib_uobject *uobject, } static int UVERBS_HANDLER(UVERBS_METHOD_CQ_CREATE)( - struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs) + struct uverbs_attr_bundle *attrs) { struct ib_ucq_object *obj = container_of( uverbs_attr_get_uobject(attrs, UVERBS_ATTR_CREATE_CQ_HANDLE), typeof(*obj), uobject); struct ib_device *ib_dev = obj->uobject.context->device; - struct ib_udata uhw; int ret; u64 user_handle; struct ib_cq_init_attr attr = {}; @@ -72,7 +71,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_CQ_CREATE)( struct ib_uverbs_completion_event_file *ev_file = NULL; struct ib_uobject *ev_file_uobj; - if (!ib_dev->create_cq || !ib_dev->destroy_cq) + if (!ib_dev->ops.create_cq || !ib_dev->ops.destroy_cq) return -EOPNOTSUPP; ret = uverbs_copy_from(&attr.comp_vector, attrs, @@ -101,7 +100,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_CQ_CREATE)( uverbs_uobject_get(ev_file_uobj); } - if (attr.comp_vector >= file->device->num_comp_vectors) { + if (attr.comp_vector >= attrs->ufile->device->num_comp_vectors) { ret = -EINVAL; goto err_event_file; } @@ -111,10 +110,8 @@ static int UVERBS_HANDLER(UVERBS_METHOD_CQ_CREATE)( INIT_LIST_HEAD(&obj->comp_list); INIT_LIST_HEAD(&obj->async_list); - /* Temporary, only until drivers get the new uverbs_attr_bundle */ - create_udata(attrs, &uhw); - - cq = ib_dev->create_cq(ib_dev, &attr, obj->uobject.context, &uhw); + cq = ib_dev->ops.create_cq(ib_dev, &attr, obj->uobject.context, + &attrs->driver_udata); if (IS_ERR(cq)) { ret = PTR_ERR(cq); goto err_event_file; @@ -129,7 +126,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_CQ_CREATE)( obj->uobject.user_handle = user_handle; atomic_set(&cq->usecnt, 0); cq->res.type = RDMA_RESTRACK_CQ; - rdma_restrack_add(&cq->res); + rdma_restrack_uadd(&cq->res); ret = uverbs_copy_to(attrs, UVERBS_ATTR_CREATE_CQ_RESP_CQE, &cq->cqe, sizeof(cq->cqe)); @@ -173,7 +170,7 @@ DECLARE_UVERBS_NAMED_METHOD( UVERBS_ATTR_UHW()); static int UVERBS_HANDLER(UVERBS_METHOD_CQ_DESTROY)( - struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs) + struct uverbs_attr_bundle *attrs) { struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs, UVERBS_ATTR_DESTROY_CQ_HANDLE); @@ -207,3 +204,9 @@ DECLARE_UVERBS_NAMED_OBJECT( &UVERBS_METHOD(UVERBS_METHOD_CQ_DESTROY) #endif ); + +const struct uapi_definition uverbs_def_obj_cq[] = { + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_CQ, + UAPI_DEF_OBJ_NEEDS_FN(destroy_cq)), + {} +}; diff --git a/drivers/infiniband/core/uverbs_std_types_device.c b/drivers/infiniband/core/uverbs_std_types_device.c new file mode 100644 index 000000000000..5030ec480370 --- /dev/null +++ b/drivers/infiniband/core/uverbs_std_types_device.c @@ -0,0 +1,224 @@ +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB +/* + * Copyright (c) 2018, Mellanox Technologies inc. All rights reserved. + */ + +#include <rdma/uverbs_std_types.h> +#include "rdma_core.h" +#include "uverbs.h" +#include <rdma/uverbs_ioctl.h> +#include <rdma/opa_addr.h> + +/* + * This ioctl method allows calling any defined write or write_ex + * handler. This essentially replaces the hdr/ex_hdr system with the ioctl + * marshalling, and brings the non-ex path into the same marshalling as the ex + * path. + */ +static int UVERBS_HANDLER(UVERBS_METHOD_INVOKE_WRITE)( + struct uverbs_attr_bundle *attrs) +{ + struct uverbs_api *uapi = attrs->ufile->device->uapi; + const struct uverbs_api_write_method *method_elm; + u32 cmd; + int rc; + + rc = uverbs_get_const(&cmd, attrs, UVERBS_ATTR_WRITE_CMD); + if (rc) + return rc; + + method_elm = uapi_get_method(uapi, cmd); + if (IS_ERR(method_elm)) + return PTR_ERR(method_elm); + + uverbs_fill_udata(attrs, &attrs->ucore, UVERBS_ATTR_CORE_IN, + UVERBS_ATTR_CORE_OUT); + + if (attrs->ucore.inlen < method_elm->req_size || + attrs->ucore.outlen < method_elm->resp_size) + return -ENOSPC; + + return method_elm->handler(attrs); +} + +DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_INVOKE_WRITE, + UVERBS_ATTR_CONST_IN(UVERBS_ATTR_WRITE_CMD, + enum ib_uverbs_write_cmds, + UA_MANDATORY), + UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CORE_IN, + UVERBS_ATTR_MIN_SIZE(sizeof(u32)), + UA_OPTIONAL), + UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_CORE_OUT, + UVERBS_ATTR_MIN_SIZE(0), + UA_OPTIONAL), + UVERBS_ATTR_UHW()); + +static uint32_t * +gather_objects_handle(struct ib_uverbs_file *ufile, + const struct uverbs_api_object *uapi_object, + struct uverbs_attr_bundle *attrs, + ssize_t out_len, + u64 *total) +{ + u64 max_count = out_len / sizeof(u32); + struct ib_uobject *obj; + u64 count = 0; + u32 *handles; + + /* Allocated memory that cannot page out where we gather + * all object ids under a spin_lock. + */ + handles = uverbs_zalloc(attrs, out_len); + if (IS_ERR(handles)) + return handles; + + spin_lock_irq(&ufile->uobjects_lock); + list_for_each_entry(obj, &ufile->uobjects, list) { + u32 obj_id = obj->id; + + if (obj->uapi_object != uapi_object) + continue; + + if (count >= max_count) + break; + + handles[count] = obj_id; + count++; + } + spin_unlock_irq(&ufile->uobjects_lock); + + *total = count; + return handles; +} + +static int UVERBS_HANDLER(UVERBS_METHOD_INFO_HANDLES)( + struct uverbs_attr_bundle *attrs) +{ + const struct uverbs_api_object *uapi_object; + ssize_t out_len; + u64 total = 0; + u16 object_id; + u32 *handles; + int ret; + + out_len = uverbs_attr_get_len(attrs, UVERBS_ATTR_INFO_HANDLES_LIST); + if (out_len <= 0 || (out_len % sizeof(u32) != 0)) + return -EINVAL; + + ret = uverbs_get_const(&object_id, attrs, UVERBS_ATTR_INFO_OBJECT_ID); + if (ret) + return ret; + + uapi_object = uapi_get_object(attrs->ufile->device->uapi, object_id); + if (!uapi_object) + return -EINVAL; + + handles = gather_objects_handle(attrs->ufile, uapi_object, attrs, + out_len, &total); + if (IS_ERR(handles)) + return PTR_ERR(handles); + + ret = uverbs_copy_to(attrs, UVERBS_ATTR_INFO_HANDLES_LIST, handles, + sizeof(u32) * total); + if (ret) + goto err; + + ret = uverbs_copy_to(attrs, UVERBS_ATTR_INFO_TOTAL_HANDLES, &total, + sizeof(total)); +err: + return ret; +} + +void copy_port_attr_to_resp(struct ib_port_attr *attr, + struct ib_uverbs_query_port_resp *resp, + struct ib_device *ib_dev, u8 port_num) +{ + resp->state = attr->state; + resp->max_mtu = attr->max_mtu; + resp->active_mtu = attr->active_mtu; + resp->gid_tbl_len = attr->gid_tbl_len; + resp->port_cap_flags = make_port_cap_flags(attr); + resp->max_msg_sz = attr->max_msg_sz; + resp->bad_pkey_cntr = attr->bad_pkey_cntr; + resp->qkey_viol_cntr = attr->qkey_viol_cntr; + resp->pkey_tbl_len = attr->pkey_tbl_len; + + if (rdma_is_grh_required(ib_dev, port_num)) + resp->flags |= IB_UVERBS_QPF_GRH_REQUIRED; + + if (rdma_cap_opa_ah(ib_dev, port_num)) { + resp->lid = OPA_TO_IB_UCAST_LID(attr->lid); + resp->sm_lid = OPA_TO_IB_UCAST_LID(attr->sm_lid); + } else { + resp->lid = ib_lid_cpu16(attr->lid); + resp->sm_lid = ib_lid_cpu16(attr->sm_lid); + } + + resp->lmc = attr->lmc; + resp->max_vl_num = attr->max_vl_num; + resp->sm_sl = attr->sm_sl; + resp->subnet_timeout = attr->subnet_timeout; + resp->init_type_reply = attr->init_type_reply; + resp->active_width = attr->active_width; + resp->active_speed = attr->active_speed; + resp->phys_state = attr->phys_state; + resp->link_layer = rdma_port_get_link_layer(ib_dev, port_num); +} + +static int UVERBS_HANDLER(UVERBS_METHOD_QUERY_PORT)( + struct uverbs_attr_bundle *attrs) +{ + struct ib_device *ib_dev = attrs->ufile->device->ib_dev; + struct ib_port_attr attr = {}; + struct ib_uverbs_query_port_resp_ex resp = {}; + int ret; + u8 port_num; + + /* FIXME: Extend the UAPI_DEF_OBJ_NEEDS_FN stuff.. */ + if (!ib_dev->ops.query_port) + return -EOPNOTSUPP; + + ret = uverbs_get_const(&port_num, attrs, + UVERBS_ATTR_QUERY_PORT_PORT_NUM); + if (ret) + return ret; + + ret = ib_query_port(ib_dev, port_num, &attr); + if (ret) + return ret; + + copy_port_attr_to_resp(&attr, &resp.legacy_resp, ib_dev, port_num); + resp.port_cap_flags2 = attr.port_cap_flags2; + + return uverbs_copy_to_struct_or_zero(attrs, UVERBS_ATTR_QUERY_PORT_RESP, + &resp, sizeof(resp)); +} + +DECLARE_UVERBS_NAMED_METHOD( + UVERBS_METHOD_INFO_HANDLES, + /* Also includes any device specific object ids */ + UVERBS_ATTR_CONST_IN(UVERBS_ATTR_INFO_OBJECT_ID, + enum uverbs_default_objects, UA_MANDATORY), + UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_INFO_TOTAL_HANDLES, + UVERBS_ATTR_TYPE(u32), UA_OPTIONAL), + UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_INFO_HANDLES_LIST, + UVERBS_ATTR_MIN_SIZE(sizeof(u32)), UA_OPTIONAL)); + +DECLARE_UVERBS_NAMED_METHOD( + UVERBS_METHOD_QUERY_PORT, + UVERBS_ATTR_CONST_IN(UVERBS_ATTR_QUERY_PORT_PORT_NUM, u8, UA_MANDATORY), + UVERBS_ATTR_PTR_OUT( + UVERBS_ATTR_QUERY_PORT_RESP, + UVERBS_ATTR_STRUCT(struct ib_uverbs_query_port_resp_ex, + reserved), + UA_MANDATORY)); + +DECLARE_UVERBS_GLOBAL_METHODS(UVERBS_OBJECT_DEVICE, + &UVERBS_METHOD(UVERBS_METHOD_INVOKE_WRITE), + &UVERBS_METHOD(UVERBS_METHOD_INFO_HANDLES), + &UVERBS_METHOD(UVERBS_METHOD_QUERY_PORT)); + +const struct uapi_definition uverbs_def_obj_device[] = { + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_DEVICE), + {}, +}; diff --git a/drivers/infiniband/core/uverbs_std_types_dm.c b/drivers/infiniband/core/uverbs_std_types_dm.c index edc3ff7733d4..2ef70637bee1 100644 --- a/drivers/infiniband/core/uverbs_std_types_dm.c +++ b/drivers/infiniband/core/uverbs_std_types_dm.c @@ -43,12 +43,11 @@ static int uverbs_free_dm(struct ib_uobject *uobject, if (ret) return ret; - return dm->device->dealloc_dm(dm); + return dm->device->ops.dealloc_dm(dm); } -static int -UVERBS_HANDLER(UVERBS_METHOD_DM_ALLOC)(struct ib_uverbs_file *file, - struct uverbs_attr_bundle *attrs) +static int UVERBS_HANDLER(UVERBS_METHOD_DM_ALLOC)( + struct uverbs_attr_bundle *attrs) { struct ib_dm_alloc_attr attr = {}; struct ib_uobject *uobj = @@ -58,7 +57,7 @@ UVERBS_HANDLER(UVERBS_METHOD_DM_ALLOC)(struct ib_uverbs_file *file, struct ib_dm *dm; int ret; - if (!ib_dev->alloc_dm) + if (!ib_dev->ops.alloc_dm) return -EOPNOTSUPP; ret = uverbs_copy_from(&attr.length, attrs, @@ -71,7 +70,7 @@ UVERBS_HANDLER(UVERBS_METHOD_DM_ALLOC)(struct ib_uverbs_file *file, if (ret) return ret; - dm = ib_dev->alloc_dm(ib_dev, uobj->context, &attr, attrs); + dm = ib_dev->ops.alloc_dm(ib_dev, uobj->context, &attr, attrs); if (IS_ERR(dm)) return PTR_ERR(dm); @@ -109,3 +108,9 @@ DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_DM, UVERBS_TYPE_ALLOC_IDR(uverbs_free_dm), &UVERBS_METHOD(UVERBS_METHOD_DM_ALLOC), &UVERBS_METHOD(UVERBS_METHOD_DM_FREE)); + +const struct uapi_definition uverbs_def_obj_dm[] = { + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_DM, + UAPI_DEF_OBJ_NEEDS_FN(dealloc_dm)), + {} +}; diff --git a/drivers/infiniband/core/uverbs_std_types_flow_action.c b/drivers/infiniband/core/uverbs_std_types_flow_action.c index cb9486ad5c67..4962b87fa600 100644 --- a/drivers/infiniband/core/uverbs_std_types_flow_action.c +++ b/drivers/infiniband/core/uverbs_std_types_flow_action.c @@ -43,7 +43,7 @@ static int uverbs_free_flow_action(struct ib_uobject *uobject, if (ret) return ret; - return action->device->destroy_flow_action(action); + return action->device->ops.destroy_flow_action(action); } static u64 esp_flags_uverbs_to_verbs(struct uverbs_attr_bundle *attrs, @@ -223,7 +223,6 @@ struct ib_flow_action_esp_attr { #define ESP_LAST_SUPPORTED_FLAG IB_UVERBS_FLOW_ACTION_ESP_FLAGS_ESN_NEW_WINDOW static int parse_flow_action_esp(struct ib_device *ib_dev, - struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs, struct ib_flow_action_esp_attr *esp_attr, bool is_modify) @@ -305,7 +304,7 @@ static int parse_flow_action_esp(struct ib_device *ib_dev, } static int UVERBS_HANDLER(UVERBS_METHOD_FLOW_ACTION_ESP_CREATE)( - struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs) + struct uverbs_attr_bundle *attrs) { struct ib_uobject *uobj = uverbs_attr_get_uobject( attrs, UVERBS_ATTR_CREATE_FLOW_ACTION_ESP_HANDLE); @@ -314,15 +313,16 @@ static int UVERBS_HANDLER(UVERBS_METHOD_FLOW_ACTION_ESP_CREATE)( struct ib_flow_action *action; struct ib_flow_action_esp_attr esp_attr = {}; - if (!ib_dev->create_flow_action_esp) + if (!ib_dev->ops.create_flow_action_esp) return -EOPNOTSUPP; - ret = parse_flow_action_esp(ib_dev, file, attrs, &esp_attr, false); + ret = parse_flow_action_esp(ib_dev, attrs, &esp_attr, false); if (ret) return ret; /* No need to check as this attribute is marked as MANDATORY */ - action = ib_dev->create_flow_action_esp(ib_dev, &esp_attr.hdr, attrs); + action = ib_dev->ops.create_flow_action_esp(ib_dev, &esp_attr.hdr, + attrs); if (IS_ERR(action)) return PTR_ERR(action); @@ -333,7 +333,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_FLOW_ACTION_ESP_CREATE)( } static int UVERBS_HANDLER(UVERBS_METHOD_FLOW_ACTION_ESP_MODIFY)( - struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs) + struct uverbs_attr_bundle *attrs) { struct ib_uobject *uobj = uverbs_attr_get_uobject( attrs, UVERBS_ATTR_MODIFY_FLOW_ACTION_ESP_HANDLE); @@ -341,19 +341,19 @@ static int UVERBS_HANDLER(UVERBS_METHOD_FLOW_ACTION_ESP_MODIFY)( int ret; struct ib_flow_action_esp_attr esp_attr = {}; - if (!action->device->modify_flow_action_esp) + if (!action->device->ops.modify_flow_action_esp) return -EOPNOTSUPP; - ret = parse_flow_action_esp(action->device, file, attrs, &esp_attr, - true); + ret = parse_flow_action_esp(action->device, attrs, &esp_attr, true); if (ret) return ret; if (action->type != IB_FLOW_ACTION_ESP) return -EINVAL; - return action->device->modify_flow_action_esp(action, &esp_attr.hdr, - attrs); + return action->device->ops.modify_flow_action_esp(action, + &esp_attr.hdr, + attrs); } static const struct uverbs_attr_spec uverbs_flow_action_esp_keymat[] = { @@ -438,3 +438,10 @@ DECLARE_UVERBS_NAMED_OBJECT( &UVERBS_METHOD(UVERBS_METHOD_FLOW_ACTION_ESP_CREATE), &UVERBS_METHOD(UVERBS_METHOD_FLOW_ACTION_DESTROY), &UVERBS_METHOD(UVERBS_METHOD_FLOW_ACTION_ESP_MODIFY)); + +const struct uapi_definition uverbs_def_obj_flow_action[] = { + UAPI_DEF_CHAIN_OBJ_TREE_NAMED( + UVERBS_OBJECT_FLOW_ACTION, + UAPI_DEF_OBJ_NEEDS_FN(destroy_flow_action)), + {} +}; diff --git a/drivers/infiniband/core/uverbs_std_types_mr.c b/drivers/infiniband/core/uverbs_std_types_mr.c index cf02e774303e..4d4be0c2b752 100644 --- a/drivers/infiniband/core/uverbs_std_types_mr.c +++ b/drivers/infiniband/core/uverbs_std_types_mr.c @@ -39,8 +39,44 @@ static int uverbs_free_mr(struct ib_uobject *uobject, return ib_dereg_mr((struct ib_mr *)uobject->object); } +static int UVERBS_HANDLER(UVERBS_METHOD_ADVISE_MR)( + struct uverbs_attr_bundle *attrs) +{ + struct ib_pd *pd = + uverbs_attr_get_obj(attrs, UVERBS_ATTR_ADVISE_MR_PD_HANDLE); + enum ib_uverbs_advise_mr_advice advice; + struct ib_device *ib_dev = pd->device; + struct ib_sge *sg_list; + int num_sge; + u32 flags; + int ret; + + /* FIXME: Extend the UAPI_DEF_OBJ_NEEDS_FN stuff.. */ + if (!ib_dev->ops.advise_mr) + return -EOPNOTSUPP; + + ret = uverbs_get_const(&advice, attrs, UVERBS_ATTR_ADVISE_MR_ADVICE); + if (ret) + return ret; + + ret = uverbs_get_flags32(&flags, attrs, UVERBS_ATTR_ADVISE_MR_FLAGS, + IB_UVERBS_ADVISE_MR_FLAG_FLUSH); + if (ret) + return ret; + + num_sge = uverbs_attr_ptr_get_array_size( + attrs, UVERBS_ATTR_ADVISE_MR_SGE_LIST, sizeof(struct ib_sge)); + if (num_sge < 0) + return num_sge; + + sg_list = uverbs_attr_get_alloced_ptr(attrs, + UVERBS_ATTR_ADVISE_MR_SGE_LIST); + return ib_dev->ops.advise_mr(pd, advice, flags, sg_list, num_sge, + attrs); +} + static int UVERBS_HANDLER(UVERBS_METHOD_DM_MR_REG)( - struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs) + struct uverbs_attr_bundle *attrs) { struct ib_dm_mr_attr attr = {}; struct ib_uobject *uobj = @@ -54,7 +90,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_DM_MR_REG)( struct ib_mr *mr; int ret; - if (!ib_dev->reg_dm_mr) + if (!ib_dev->ops.reg_dm_mr) return -EOPNOTSUPP; ret = uverbs_copy_from(&attr.offset, attrs, UVERBS_ATTR_REG_DM_MR_OFFSET); @@ -83,7 +119,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_DM_MR_REG)( attr.length > dm->length - attr.offset) return -EINVAL; - mr = pd->device->reg_dm_mr(pd, dm, &attr, attrs); + mr = pd->device->ops.reg_dm_mr(pd, dm, &attr, attrs); if (IS_ERR(mr)) return PTR_ERR(mr); @@ -115,6 +151,23 @@ err_dereg: } DECLARE_UVERBS_NAMED_METHOD( + UVERBS_METHOD_ADVISE_MR, + UVERBS_ATTR_IDR(UVERBS_ATTR_ADVISE_MR_PD_HANDLE, + UVERBS_OBJECT_PD, + UVERBS_ACCESS_READ, + UA_MANDATORY), + UVERBS_ATTR_CONST_IN(UVERBS_ATTR_ADVISE_MR_ADVICE, + enum ib_uverbs_advise_mr_advice, + UA_MANDATORY), + UVERBS_ATTR_FLAGS_IN(UVERBS_ATTR_ADVISE_MR_FLAGS, + enum ib_uverbs_advise_mr_flag, + UA_MANDATORY), + UVERBS_ATTR_PTR_IN(UVERBS_ATTR_ADVISE_MR_SGE_LIST, + UVERBS_ATTR_MIN_SIZE(sizeof(struct ib_uverbs_sge)), + UA_MANDATORY, + UA_ALLOC_AND_COPY)); + +DECLARE_UVERBS_NAMED_METHOD( UVERBS_METHOD_DM_MR_REG, UVERBS_ATTR_IDR(UVERBS_ATTR_REG_DM_MR_HANDLE, UVERBS_OBJECT_MR, @@ -143,7 +196,22 @@ DECLARE_UVERBS_NAMED_METHOD( UVERBS_ATTR_TYPE(u32), UA_MANDATORY)); +DECLARE_UVERBS_NAMED_METHOD_DESTROY( + UVERBS_METHOD_MR_DESTROY, + UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_MR_HANDLE, + UVERBS_OBJECT_MR, + UVERBS_ACCESS_DESTROY, + UA_MANDATORY)); + DECLARE_UVERBS_NAMED_OBJECT( UVERBS_OBJECT_MR, UVERBS_TYPE_ALLOC_IDR(uverbs_free_mr), - &UVERBS_METHOD(UVERBS_METHOD_DM_MR_REG)); + &UVERBS_METHOD(UVERBS_METHOD_DM_MR_REG), + &UVERBS_METHOD(UVERBS_METHOD_MR_DESTROY), + &UVERBS_METHOD(UVERBS_METHOD_ADVISE_MR)); + +const struct uapi_definition uverbs_def_obj_mr[] = { + UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_MR, + UAPI_DEF_OBJ_NEEDS_FN(dereg_mr)), + {} +}; diff --git a/drivers/infiniband/core/uverbs_uapi.c b/drivers/infiniband/core/uverbs_uapi.c index 86f3fc5e04b4..9ae08e4b78a3 100644 --- a/drivers/infiniband/core/uverbs_uapi.c +++ b/drivers/infiniband/core/uverbs_uapi.c @@ -8,6 +8,11 @@ #include "rdma_core.h" #include "uverbs.h" +static int ib_uverbs_notsupp(struct uverbs_attr_bundle *attrs) +{ + return -EOPNOTSUPP; +} + static void *uapi_add_elm(struct uverbs_api *uapi, u32 key, size_t alloc_size) { void *elm; @@ -26,6 +31,70 @@ static void *uapi_add_elm(struct uverbs_api *uapi, u32 key, size_t alloc_size) return elm; } +static void *uapi_add_get_elm(struct uverbs_api *uapi, u32 key, + size_t alloc_size, bool *exists) +{ + void *elm; + + elm = uapi_add_elm(uapi, key, alloc_size); + if (!IS_ERR(elm)) { + *exists = false; + return elm; + } + + if (elm != ERR_PTR(-EEXIST)) + return elm; + + elm = radix_tree_lookup(&uapi->radix, key); + if (WARN_ON(!elm)) + return ERR_PTR(-EINVAL); + *exists = true; + return elm; +} + +static int uapi_create_write(struct uverbs_api *uapi, + struct ib_device *ibdev, + const struct uapi_definition *def, + u32 obj_key, + u32 *cur_method_key) +{ + struct uverbs_api_write_method *method_elm; + u32 method_key = obj_key; + bool exists; + + if (def->write.is_ex) + method_key |= uapi_key_write_ex_method(def->write.command_num); + else + method_key |= uapi_key_write_method(def->write.command_num); + + method_elm = uapi_add_get_elm(uapi, method_key, sizeof(*method_elm), + &exists); + if (IS_ERR(method_elm)) + return PTR_ERR(method_elm); + + if (WARN_ON(exists && (def->write.is_ex != method_elm->is_ex))) + return -EINVAL; + + method_elm->is_ex = def->write.is_ex; + method_elm->handler = def->func_write; + if (def->write.is_ex) + method_elm->disabled = !(ibdev->uverbs_ex_cmd_mask & + BIT_ULL(def->write.command_num)); + else + method_elm->disabled = !(ibdev->uverbs_cmd_mask & + BIT_ULL(def->write.command_num)); + + if (!def->write.is_ex && def->func_write) { + method_elm->has_udata = def->write.has_udata; + method_elm->has_resp = def->write.has_resp; + method_elm->req_size = def->write.req_size; + method_elm->resp_size = def->write.resp_size; + } + + *cur_method_key = method_key; + return 0; +} + static int uapi_merge_method(struct uverbs_api *uapi, struct uverbs_api_object *obj_elm, u32 obj_key, const struct uverbs_method_def *method, @@ -34,23 +103,21 @@ static int uapi_merge_method(struct uverbs_api *uapi, u32 method_key = obj_key | uapi_key_ioctl_method(method->id); struct uverbs_api_ioctl_method *method_elm; unsigned int i; + bool exists; if (!method->attrs) return 0; - method_elm = uapi_add_elm(uapi, method_key, sizeof(*method_elm)); - if (IS_ERR(method_elm)) { - if (method_elm != ERR_PTR(-EEXIST)) - return PTR_ERR(method_elm); - + method_elm = uapi_add_get_elm(uapi, method_key, sizeof(*method_elm), + &exists); + if (IS_ERR(method_elm)) + return PTR_ERR(method_elm); + if (exists) { /* * This occurs when a driver uses ADD_UVERBS_ATTRIBUTES_SIMPLE */ if (WARN_ON(method->handler)) return -EINVAL; - method_elm = radix_tree_lookup(&uapi->radix, method_key); - if (WARN_ON(!method_elm)) - return -EINVAL; } else { WARN_ON(!method->handler); rcu_assign_pointer(method_elm->handler, method->handler); @@ -98,72 +165,183 @@ static int uapi_merge_method(struct uverbs_api *uapi, return 0; } -static int uapi_merge_tree(struct uverbs_api *uapi, - const struct uverbs_object_tree_def *tree, - bool is_driver) +static int uapi_merge_obj_tree(struct uverbs_api *uapi, + const struct uverbs_object_def *obj, + bool is_driver) { - unsigned int i, j; + struct uverbs_api_object *obj_elm; + unsigned int i; + u32 obj_key; + bool exists; int rc; - if (!tree->objects) + obj_key = uapi_key_obj(obj->id); + obj_elm = uapi_add_get_elm(uapi, obj_key, sizeof(*obj_elm), &exists); + if (IS_ERR(obj_elm)) + return PTR_ERR(obj_elm); + + if (obj->type_attrs) { + if (WARN_ON(obj_elm->type_attrs)) + return -EINVAL; + + obj_elm->id = obj->id; + obj_elm->type_attrs = obj->type_attrs; + obj_elm->type_class = obj->type_attrs->type_class; + /* + * Today drivers are only permitted to use idr_class + * types. They cannot use FD types because we currently have + * no way to revoke the fops pointer after device + * disassociation. + */ + if (WARN_ON(is_driver && + obj->type_attrs->type_class != &uverbs_idr_class)) + return -EINVAL; + } + + if (!obj->methods) return 0; - for (i = 0; i != tree->num_objects; i++) { - const struct uverbs_object_def *obj = (*tree->objects)[i]; - struct uverbs_api_object *obj_elm; - u32 obj_key; + for (i = 0; i != obj->num_methods; i++) { + const struct uverbs_method_def *method = (*obj->methods)[i]; - if (!obj) + if (!method) continue; - obj_key = uapi_key_obj(obj->id); - obj_elm = uapi_add_elm(uapi, obj_key, sizeof(*obj_elm)); - if (IS_ERR(obj_elm)) { - if (obj_elm != ERR_PTR(-EEXIST)) - return PTR_ERR(obj_elm); + rc = uapi_merge_method(uapi, obj_elm, obj_key, method, + is_driver); + if (rc) + return rc; + } - /* This occurs when a driver uses ADD_UVERBS_METHODS */ - if (WARN_ON(obj->type_attrs)) - return -EINVAL; - obj_elm = radix_tree_lookup(&uapi->radix, obj_key); - if (WARN_ON(!obj_elm)) + return 0; +} + +static int uapi_disable_elm(struct uverbs_api *uapi, + const struct uapi_definition *def, + u32 obj_key, + u32 method_key) +{ + bool exists; + + if (def->scope == UAPI_SCOPE_OBJECT) { + struct uverbs_api_object *obj_elm; + + obj_elm = uapi_add_get_elm( + uapi, obj_key, sizeof(*obj_elm), &exists); + if (IS_ERR(obj_elm)) + return PTR_ERR(obj_elm); + obj_elm->disabled = 1; + return 0; + } + + if (def->scope == UAPI_SCOPE_METHOD && + uapi_key_is_ioctl_method(method_key)) { + struct uverbs_api_ioctl_method *method_elm; + + method_elm = uapi_add_get_elm(uapi, method_key, + sizeof(*method_elm), &exists); + if (IS_ERR(method_elm)) + return PTR_ERR(method_elm); + method_elm->disabled = 1; + return 0; + } + + if (def->scope == UAPI_SCOPE_METHOD && + (uapi_key_is_write_method(method_key) || + uapi_key_is_write_ex_method(method_key))) { + struct uverbs_api_write_method *write_elm; + + write_elm = uapi_add_get_elm(uapi, method_key, + sizeof(*write_elm), &exists); + if (IS_ERR(write_elm)) + return PTR_ERR(write_elm); + write_elm->disabled = 1; + return 0; + } + + WARN_ON(true); + return -EINVAL; +} + +static int uapi_merge_def(struct uverbs_api *uapi, struct ib_device *ibdev, + const struct uapi_definition *def_list, + bool is_driver) +{ + const struct uapi_definition *def = def_list; + u32 cur_obj_key = UVERBS_API_KEY_ERR; + u32 cur_method_key = UVERBS_API_KEY_ERR; + bool exists; + int rc; + + if (!def_list) + return 0; + + for (;; def++) { + switch ((enum uapi_definition_kind)def->kind) { + case UAPI_DEF_CHAIN: + rc = uapi_merge_def(uapi, ibdev, def->chain, is_driver); + if (rc) + return rc; + continue; + + case UAPI_DEF_CHAIN_OBJ_TREE: + if (WARN_ON(def->object_start.object_id != + def->chain_obj_tree->id)) return -EINVAL; - } else { - obj_elm->type_attrs = obj->type_attrs; - if (obj->type_attrs) { - obj_elm->type_class = - obj->type_attrs->type_class; - /* - * Today drivers are only permitted to use - * idr_class types. They cannot use FD types - * because we currently have no way to revoke - * the fops pointer after device - * disassociation. - */ - if (WARN_ON(is_driver && - obj->type_attrs->type_class != - &uverbs_idr_class)) - return -EINVAL; - } - } - if (!obj->methods) + cur_obj_key = uapi_key_obj(def->object_start.object_id); + rc = uapi_merge_obj_tree(uapi, def->chain_obj_tree, + is_driver); + if (rc) + return rc; continue; - for (j = 0; j != obj->num_methods; j++) { - const struct uverbs_method_def *method = - (*obj->methods)[j]; - if (!method) + case UAPI_DEF_END: + return 0; + + case UAPI_DEF_IS_SUPPORTED_DEV_FN: { + void **ibdev_fn = + (void *)(&ibdev->ops) + def->needs_fn_offset; + + if (*ibdev_fn) continue; + rc = uapi_disable_elm( + uapi, def, cur_obj_key, cur_method_key); + if (rc) + return rc; + continue; + } - rc = uapi_merge_method(uapi, obj_elm, obj_key, method, - is_driver); + case UAPI_DEF_IS_SUPPORTED_FUNC: + if (def->func_is_supported(ibdev)) + continue; + rc = uapi_disable_elm( + uapi, def, cur_obj_key, cur_method_key); if (rc) return rc; + continue; + + case UAPI_DEF_OBJECT_START: { + struct uverbs_api_object *obj_elm; + + cur_obj_key = uapi_key_obj(def->object_start.object_id); + obj_elm = uapi_add_get_elm(uapi, cur_obj_key, + sizeof(*obj_elm), &exists); + if (IS_ERR(obj_elm)) + return PTR_ERR(obj_elm); + continue; } - } - return 0; + case UAPI_DEF_WRITE: + rc = uapi_create_write( + uapi, ibdev, def, cur_obj_key, &cur_method_key); + if (rc) + return rc; + continue; + } + WARN_ON(true); + return -EINVAL; + } } static int @@ -186,13 +364,16 @@ uapi_finalize_ioctl_method(struct uverbs_api *uapi, u32 attr_bkey = uapi_bkey_attr(attr_key); u8 type = elm->spec.type; - if (uapi_key_attr_to_method(iter.index) != - uapi_key_attr_to_method(method_key)) + if (uapi_key_attr_to_ioctl_method(iter.index) != + uapi_key_attr_to_ioctl_method(method_key)) break; if (elm->spec.mandatory) __set_bit(attr_bkey, method_elm->attr_mandatory); + if (elm->spec.is_udata) + method_elm->has_udata = true; + if (type == UVERBS_ATTR_TYPE_IDR || type == UVERBS_ATTR_TYPE_FD) { u8 access = elm->spec.u.obj.access; @@ -229,9 +410,13 @@ uapi_finalize_ioctl_method(struct uverbs_api *uapi, static int uapi_finalize(struct uverbs_api *uapi) { + const struct uverbs_api_write_method **data; + unsigned long max_write_ex = 0; + unsigned long max_write = 0; struct radix_tree_iter iter; void __rcu **slot; int rc; + int i; radix_tree_for_each_slot (slot, &uapi->radix, &iter, 0) { struct uverbs_api_ioctl_method *method_elm = @@ -243,29 +428,209 @@ static int uapi_finalize(struct uverbs_api *uapi) if (rc) return rc; } + + if (uapi_key_is_write_method(iter.index)) + max_write = max(max_write, + iter.index & UVERBS_API_ATTR_KEY_MASK); + if (uapi_key_is_write_ex_method(iter.index)) + max_write_ex = + max(max_write_ex, + iter.index & UVERBS_API_ATTR_KEY_MASK); + } + + uapi->notsupp_method.handler = ib_uverbs_notsupp; + uapi->num_write = max_write + 1; + uapi->num_write_ex = max_write_ex + 1; + data = kmalloc_array(uapi->num_write + uapi->num_write_ex, + sizeof(*uapi->write_methods), GFP_KERNEL); + for (i = 0; i != uapi->num_write + uapi->num_write_ex; i++) + data[i] = &uapi->notsupp_method; + uapi->write_methods = data; + uapi->write_ex_methods = data + uapi->num_write; + + radix_tree_for_each_slot (slot, &uapi->radix, &iter, 0) { + if (uapi_key_is_write_method(iter.index)) + uapi->write_methods[iter.index & + UVERBS_API_ATTR_KEY_MASK] = + rcu_dereference_protected(*slot, true); + if (uapi_key_is_write_ex_method(iter.index)) + uapi->write_ex_methods[iter.index & + UVERBS_API_ATTR_KEY_MASK] = + rcu_dereference_protected(*slot, true); } return 0; } -void uverbs_destroy_api(struct uverbs_api *uapi) +static void uapi_remove_range(struct uverbs_api *uapi, u32 start, u32 last) { struct radix_tree_iter iter; void __rcu **slot; - if (!uapi) - return; - - radix_tree_for_each_slot (slot, &uapi->radix, &iter, 0) { + radix_tree_for_each_slot (slot, &uapi->radix, &iter, start) { + if (iter.index > last) + return; kfree(rcu_dereference_protected(*slot, true)); radix_tree_iter_delete(&uapi->radix, &iter, slot); } +} + +static void uapi_remove_object(struct uverbs_api *uapi, u32 obj_key) +{ + uapi_remove_range(uapi, obj_key, + obj_key | UVERBS_API_METHOD_KEY_MASK | + UVERBS_API_ATTR_KEY_MASK); +} + +static void uapi_remove_method(struct uverbs_api *uapi, u32 method_key) +{ + uapi_remove_range(uapi, method_key, + method_key | UVERBS_API_ATTR_KEY_MASK); +} + + +static u32 uapi_get_obj_id(struct uverbs_attr_spec *spec) +{ + if (spec->type == UVERBS_ATTR_TYPE_IDR || + spec->type == UVERBS_ATTR_TYPE_FD) + return spec->u.obj.obj_type; + if (spec->type == UVERBS_ATTR_TYPE_IDRS_ARRAY) + return spec->u2.objs_arr.obj_type; + return UVERBS_API_KEY_ERR; +} + +static void uapi_key_okay(u32 key) +{ + unsigned int count = 0; + + if (uapi_key_is_object(key)) + count++; + if (uapi_key_is_ioctl_method(key)) + count++; + if (uapi_key_is_write_method(key)) + count++; + if (uapi_key_is_write_ex_method(key)) + count++; + if (uapi_key_is_attr(key)) + count++; + WARN(count != 1, "Bad count %d key=%x", count, key); +} + +static void uapi_finalize_disable(struct uverbs_api *uapi) +{ + struct radix_tree_iter iter; + u32 starting_key = 0; + bool scan_again = false; + void __rcu **slot; + +again: + radix_tree_for_each_slot (slot, &uapi->radix, &iter, starting_key) { + uapi_key_okay(iter.index); + + if (uapi_key_is_object(iter.index)) { + struct uverbs_api_object *obj_elm = + rcu_dereference_protected(*slot, true); + + if (obj_elm->disabled) { + /* Have to check all the attrs again */ + scan_again = true; + starting_key = iter.index; + uapi_remove_object(uapi, iter.index); + goto again; + } + continue; + } + + if (uapi_key_is_ioctl_method(iter.index)) { + struct uverbs_api_ioctl_method *method_elm = + rcu_dereference_protected(*slot, true); + + if (method_elm->disabled) { + starting_key = iter.index; + uapi_remove_method(uapi, iter.index); + goto again; + } + continue; + } + + if (uapi_key_is_write_method(iter.index) || + uapi_key_is_write_ex_method(iter.index)) { + struct uverbs_api_write_method *method_elm = + rcu_dereference_protected(*slot, true); + + if (method_elm->disabled) { + kfree(method_elm); + radix_tree_iter_delete(&uapi->radix, &iter, slot); + } + continue; + } + + if (uapi_key_is_attr(iter.index)) { + struct uverbs_api_attr *attr_elm = + rcu_dereference_protected(*slot, true); + const struct uverbs_api_object *tmp_obj; + u32 obj_key; + + /* + * If the method has a mandatory object handle + * attribute which relies on an object which is not + * present then the entire method is uncallable. + */ + if (!attr_elm->spec.mandatory) + continue; + obj_key = uapi_get_obj_id(&attr_elm->spec); + if (obj_key == UVERBS_API_KEY_ERR) + continue; + tmp_obj = uapi_get_object(uapi, obj_key); + if (IS_ERR(tmp_obj)) { + if (PTR_ERR(tmp_obj) == -ENOMSG) + continue; + } else { + if (!tmp_obj->disabled) + continue; + } + + starting_key = iter.index; + uapi_remove_method( + uapi, + iter.index & (UVERBS_API_OBJ_KEY_MASK | + UVERBS_API_METHOD_KEY_MASK)); + goto again; + } + + WARN_ON(false); + } + + if (!scan_again) + return; + scan_again = false; + starting_key = 0; + goto again; +} + +void uverbs_destroy_api(struct uverbs_api *uapi) +{ + if (!uapi) + return; + + uapi_remove_range(uapi, 0, U32_MAX); + kfree(uapi->write_methods); kfree(uapi); } -struct uverbs_api *uverbs_alloc_api( - const struct uverbs_object_tree_def *const *driver_specs, - enum rdma_driver_id driver_id) +static const struct uapi_definition uverbs_core_api[] = { + UAPI_DEF_CHAIN(uverbs_def_obj_counters), + UAPI_DEF_CHAIN(uverbs_def_obj_cq), + UAPI_DEF_CHAIN(uverbs_def_obj_device), + UAPI_DEF_CHAIN(uverbs_def_obj_dm), + UAPI_DEF_CHAIN(uverbs_def_obj_flow_action), + UAPI_DEF_CHAIN(uverbs_def_obj_intf), + UAPI_DEF_CHAIN(uverbs_def_obj_mr), + UAPI_DEF_CHAIN(uverbs_def_write_intf), + {}, +}; + +struct uverbs_api *uverbs_alloc_api(struct ib_device *ibdev) { struct uverbs_api *uapi; int rc; @@ -275,18 +640,16 @@ struct uverbs_api *uverbs_alloc_api( return ERR_PTR(-ENOMEM); INIT_RADIX_TREE(&uapi->radix, GFP_KERNEL); - uapi->driver_id = driver_id; + uapi->driver_id = ibdev->driver_id; - rc = uapi_merge_tree(uapi, uverbs_default_get_objects(), false); + rc = uapi_merge_def(uapi, ibdev, uverbs_core_api, false); + if (rc) + goto err; + rc = uapi_merge_def(uapi, ibdev, ibdev->driver_def, true); if (rc) goto err; - for (; driver_specs && *driver_specs; driver_specs++) { - rc = uapi_merge_tree(uapi, *driver_specs, true); - if (rc) - goto err; - } - + uapi_finalize_disable(uapi); rc = uapi_finalize(uapi); if (rc) goto err; @@ -294,8 +657,9 @@ struct uverbs_api *uverbs_alloc_api( return uapi; err: if (rc != -ENOMEM) - pr_err("Setup of uverbs_api failed, kernel parsing tree description is not valid (%d)??\n", - rc); + dev_err(&ibdev->dev, + "Setup of uverbs_api failed, kernel parsing tree description is not valid (%d)??\n", + rc); uverbs_destroy_api(uapi); return ERR_PTR(rc); diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 178899e3ce73..ac011836bb54 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -141,6 +141,10 @@ __attribute_const__ int ib_rate_to_mult(enum ib_rate rate) case IB_RATE_100_GBPS: return 40; case IB_RATE_200_GBPS: return 80; case IB_RATE_300_GBPS: return 120; + case IB_RATE_28_GBPS: return 11; + case IB_RATE_50_GBPS: return 20; + case IB_RATE_400_GBPS: return 160; + case IB_RATE_600_GBPS: return 240; default: return -1; } } @@ -166,6 +170,10 @@ __attribute_const__ enum ib_rate mult_to_ib_rate(int mult) case 40: return IB_RATE_100_GBPS; case 80: return IB_RATE_200_GBPS; case 120: return IB_RATE_300_GBPS; + case 11: return IB_RATE_28_GBPS; + case 20: return IB_RATE_50_GBPS; + case 160: return IB_RATE_400_GBPS; + case 240: return IB_RATE_600_GBPS; default: return IB_RATE_PORT_CURRENT; } } @@ -191,6 +199,10 @@ __attribute_const__ int ib_rate_to_mbps(enum ib_rate rate) case IB_RATE_100_GBPS: return 103125; case IB_RATE_200_GBPS: return 206250; case IB_RATE_300_GBPS: return 309375; + case IB_RATE_28_GBPS: return 28125; + case IB_RATE_50_GBPS: return 53125; + case IB_RATE_400_GBPS: return 425000; + case IB_RATE_600_GBPS: return 637500; default: return -1; } } @@ -214,8 +226,8 @@ EXPORT_SYMBOL(rdma_node_get_transport); enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, u8 port_num) { enum rdma_transport_type lt; - if (device->get_link_layer) - return device->get_link_layer(device, port_num); + if (device->ops.get_link_layer) + return device->ops.get_link_layer(device, port_num); lt = rdma_node_get_transport(device->node_type); if (lt == RDMA_TRANSPORT_IB) @@ -243,7 +255,7 @@ struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags, struct ib_pd *pd; int mr_access_flags = 0; - pd = device->alloc_pd(device, NULL, NULL); + pd = device->ops.alloc_pd(device, NULL, NULL); if (IS_ERR(pd)) return pd; @@ -265,12 +277,12 @@ struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags, pd->res.type = RDMA_RESTRACK_PD; rdma_restrack_set_task(&pd->res, caller); - rdma_restrack_add(&pd->res); + rdma_restrack_kadd(&pd->res); if (mr_access_flags) { struct ib_mr *mr; - mr = pd->device->get_dma_mr(pd, mr_access_flags); + mr = pd->device->ops.get_dma_mr(pd, mr_access_flags); if (IS_ERR(mr)) { ib_dealloc_pd(pd); return ERR_CAST(mr); @@ -307,7 +319,7 @@ void ib_dealloc_pd(struct ib_pd *pd) int ret; if (pd->__internal_mr) { - ret = pd->device->dereg_mr(pd->__internal_mr); + ret = pd->device->ops.dereg_mr(pd->__internal_mr); WARN_ON(ret); pd->__internal_mr = NULL; } @@ -319,7 +331,7 @@ void ib_dealloc_pd(struct ib_pd *pd) rdma_restrack_del(&pd->res); /* Making delalloc_pd a void return is a WIP, no driver should return an error here. */ - ret = pd->device->dealloc_pd(pd); + ret = pd->device->ops.dealloc_pd(pd); WARN_ONCE(ret, "Infiniband HW driver failed dealloc_pd"); } EXPORT_SYMBOL(ib_dealloc_pd); @@ -475,14 +487,17 @@ rdma_update_sgid_attr(struct rdma_ah_attr *ah_attr, static struct ib_ah *_rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr, + u32 flags, struct ib_udata *udata) { struct ib_ah *ah; - if (!pd->device->create_ah) + might_sleep_if(flags & RDMA_CREATE_AH_SLEEPABLE); + + if (!pd->device->ops.create_ah) return ERR_PTR(-EOPNOTSUPP); - ah = pd->device->create_ah(pd, ah_attr, udata); + ah = pd->device->ops.create_ah(pd, ah_attr, flags, udata); if (!IS_ERR(ah)) { ah->device = pd->device; @@ -502,12 +517,14 @@ static struct ib_ah *_rdma_create_ah(struct ib_pd *pd, * given address vector. * @pd: The protection domain associated with the address handle. * @ah_attr: The attributes of the address vector. + * @flags: Create address handle flags (see enum rdma_create_ah_flags). * * It returns 0 on success and returns appropriate error code on error. * The address handle is used to reference a local or global destination * in all UD QP post sends. */ -struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr) +struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr, + u32 flags) { const struct ib_gid_attr *old_sgid_attr; struct ib_ah *ah; @@ -517,7 +534,7 @@ struct ib_ah *rdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr) if (ret) return ERR_PTR(ret); - ah = _rdma_create_ah(pd, ah_attr, NULL); + ah = _rdma_create_ah(pd, ah_attr, flags, NULL); rdma_unfill_sgid_attr(ah_attr, old_sgid_attr); return ah; @@ -557,7 +574,7 @@ struct ib_ah *rdma_create_user_ah(struct ib_pd *pd, } } - ah = _rdma_create_ah(pd, ah_attr, udata); + ah = _rdma_create_ah(pd, ah_attr, RDMA_CREATE_AH_SLEEPABLE, udata); out: rdma_unfill_sgid_attr(ah_attr, old_sgid_attr); @@ -869,7 +886,7 @@ struct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, const struct ib_wc *wc, if (ret) return ERR_PTR(ret); - ah = rdma_create_ah(pd, &ah_attr); + ah = rdma_create_ah(pd, &ah_attr, RDMA_CREATE_AH_SLEEPABLE); rdma_destroy_ah_attr(&ah_attr); return ah; @@ -888,8 +905,8 @@ int rdma_modify_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr) if (ret) return ret; - ret = ah->device->modify_ah ? - ah->device->modify_ah(ah, ah_attr) : + ret = ah->device->ops.modify_ah ? + ah->device->ops.modify_ah(ah, ah_attr) : -EOPNOTSUPP; ah->sgid_attr = rdma_update_sgid_attr(ah_attr, ah->sgid_attr); @@ -902,20 +919,22 @@ int rdma_query_ah(struct ib_ah *ah, struct rdma_ah_attr *ah_attr) { ah_attr->grh.sgid_attr = NULL; - return ah->device->query_ah ? - ah->device->query_ah(ah, ah_attr) : + return ah->device->ops.query_ah ? + ah->device->ops.query_ah(ah, ah_attr) : -EOPNOTSUPP; } EXPORT_SYMBOL(rdma_query_ah); -int rdma_destroy_ah(struct ib_ah *ah) +int rdma_destroy_ah(struct ib_ah *ah, u32 flags) { const struct ib_gid_attr *sgid_attr = ah->sgid_attr; struct ib_pd *pd; int ret; + might_sleep_if(flags & RDMA_DESTROY_AH_SLEEPABLE); + pd = ah->pd; - ret = ah->device->destroy_ah(ah); + ret = ah->device->ops.destroy_ah(ah, flags); if (!ret) { atomic_dec(&pd->usecnt); if (sgid_attr) @@ -933,10 +952,10 @@ struct ib_srq *ib_create_srq(struct ib_pd *pd, { struct ib_srq *srq; - if (!pd->device->create_srq) + if (!pd->device->ops.create_srq) return ERR_PTR(-EOPNOTSUPP); - srq = pd->device->create_srq(pd, srq_init_attr, NULL); + srq = pd->device->ops.create_srq(pd, srq_init_attr, NULL); if (!IS_ERR(srq)) { srq->device = pd->device; @@ -965,17 +984,17 @@ int ib_modify_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr, enum ib_srq_attr_mask srq_attr_mask) { - return srq->device->modify_srq ? - srq->device->modify_srq(srq, srq_attr, srq_attr_mask, NULL) : - -EOPNOTSUPP; + return srq->device->ops.modify_srq ? + srq->device->ops.modify_srq(srq, srq_attr, srq_attr_mask, + NULL) : -EOPNOTSUPP; } EXPORT_SYMBOL(ib_modify_srq); int ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr) { - return srq->device->query_srq ? - srq->device->query_srq(srq, srq_attr) : -EOPNOTSUPP; + return srq->device->ops.query_srq ? + srq->device->ops.query_srq(srq, srq_attr) : -EOPNOTSUPP; } EXPORT_SYMBOL(ib_query_srq); @@ -997,7 +1016,7 @@ int ib_destroy_srq(struct ib_srq *srq) if (srq_type == IB_SRQT_XRC) xrcd = srq->ext.xrc.xrcd; - ret = srq->device->destroy_srq(srq); + ret = srq->device->ops.destroy_srq(srq); if (!ret) { atomic_dec(&pd->usecnt); if (srq_type == IB_SRQT_XRC) @@ -1106,7 +1125,7 @@ static struct ib_qp *ib_create_xrc_qp(struct ib_qp *qp, if (!IS_ERR(qp)) __ib_insert_xrcd_qp(qp_init_attr->xrcd, real_qp); else - real_qp->device->destroy_qp(real_qp); + real_qp->device->ops.destroy_qp(real_qp); return qp; } @@ -1692,10 +1711,10 @@ int ib_get_eth_speed(struct ib_device *dev, u8 port_num, u8 *speed, u8 *width) if (rdma_port_get_link_layer(dev, port_num) != IB_LINK_LAYER_ETHERNET) return -EINVAL; - if (!dev->get_netdev) + if (!dev->ops.get_netdev) return -EOPNOTSUPP; - netdev = dev->get_netdev(dev, port_num); + netdev = dev->ops.get_netdev(dev, port_num); if (!netdev) return -ENODEV; @@ -1753,9 +1772,9 @@ int ib_query_qp(struct ib_qp *qp, qp_attr->ah_attr.grh.sgid_attr = NULL; qp_attr->alt_ah_attr.grh.sgid_attr = NULL; - return qp->device->query_qp ? - qp->device->query_qp(qp->real_qp, qp_attr, qp_attr_mask, qp_init_attr) : - -EOPNOTSUPP; + return qp->device->ops.query_qp ? + qp->device->ops.query_qp(qp->real_qp, qp_attr, qp_attr_mask, + qp_init_attr) : -EOPNOTSUPP; } EXPORT_SYMBOL(ib_query_qp); @@ -1841,7 +1860,7 @@ int ib_destroy_qp(struct ib_qp *qp) rdma_rw_cleanup_mrs(qp); rdma_restrack_del(&qp->res); - ret = qp->device->destroy_qp(qp); + ret = qp->device->ops.destroy_qp(qp); if (!ret) { if (alt_path_sgid_attr) rdma_put_gid_attr(alt_path_sgid_attr); @@ -1879,7 +1898,7 @@ struct ib_cq *__ib_create_cq(struct ib_device *device, { struct ib_cq *cq; - cq = device->create_cq(device, cq_attr, NULL, NULL); + cq = device->ops.create_cq(device, cq_attr, NULL, NULL); if (!IS_ERR(cq)) { cq->device = device; @@ -1890,7 +1909,7 @@ struct ib_cq *__ib_create_cq(struct ib_device *device, atomic_set(&cq->usecnt, 0); cq->res.type = RDMA_RESTRACK_CQ; rdma_restrack_set_task(&cq->res, caller); - rdma_restrack_add(&cq->res); + rdma_restrack_kadd(&cq->res); } return cq; @@ -1899,8 +1918,9 @@ EXPORT_SYMBOL(__ib_create_cq); int rdma_set_cq_moderation(struct ib_cq *cq, u16 cq_count, u16 cq_period) { - return cq->device->modify_cq ? - cq->device->modify_cq(cq, cq_count, cq_period) : -EOPNOTSUPP; + return cq->device->ops.modify_cq ? + cq->device->ops.modify_cq(cq, cq_count, + cq_period) : -EOPNOTSUPP; } EXPORT_SYMBOL(rdma_set_cq_moderation); @@ -1910,14 +1930,14 @@ int ib_destroy_cq(struct ib_cq *cq) return -EBUSY; rdma_restrack_del(&cq->res); - return cq->device->destroy_cq(cq); + return cq->device->ops.destroy_cq(cq); } EXPORT_SYMBOL(ib_destroy_cq); int ib_resize_cq(struct ib_cq *cq, int cqe) { - return cq->device->resize_cq ? - cq->device->resize_cq(cq, cqe, NULL) : -EOPNOTSUPP; + return cq->device->ops.resize_cq ? + cq->device->ops.resize_cq(cq, cqe, NULL) : -EOPNOTSUPP; } EXPORT_SYMBOL(ib_resize_cq); @@ -1930,7 +1950,7 @@ int ib_dereg_mr(struct ib_mr *mr) int ret; rdma_restrack_del(&mr->res); - ret = mr->device->dereg_mr(mr); + ret = mr->device->ops.dereg_mr(mr); if (!ret) { atomic_dec(&pd->usecnt); if (dm) @@ -1959,10 +1979,10 @@ struct ib_mr *ib_alloc_mr(struct ib_pd *pd, { struct ib_mr *mr; - if (!pd->device->alloc_mr) + if (!pd->device->ops.alloc_mr) return ERR_PTR(-EOPNOTSUPP); - mr = pd->device->alloc_mr(pd, mr_type, max_num_sg); + mr = pd->device->ops.alloc_mr(pd, mr_type, max_num_sg); if (!IS_ERR(mr)) { mr->device = pd->device; mr->pd = pd; @@ -1971,7 +1991,7 @@ struct ib_mr *ib_alloc_mr(struct ib_pd *pd, atomic_inc(&pd->usecnt); mr->need_inval = false; mr->res.type = RDMA_RESTRACK_MR; - rdma_restrack_add(&mr->res); + rdma_restrack_kadd(&mr->res); } return mr; @@ -1986,10 +2006,10 @@ struct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, { struct ib_fmr *fmr; - if (!pd->device->alloc_fmr) + if (!pd->device->ops.alloc_fmr) return ERR_PTR(-EOPNOTSUPP); - fmr = pd->device->alloc_fmr(pd, mr_access_flags, fmr_attr); + fmr = pd->device->ops.alloc_fmr(pd, mr_access_flags, fmr_attr); if (!IS_ERR(fmr)) { fmr->device = pd->device; fmr->pd = pd; @@ -2008,7 +2028,7 @@ int ib_unmap_fmr(struct list_head *fmr_list) return 0; fmr = list_entry(fmr_list->next, struct ib_fmr, list); - return fmr->device->unmap_fmr(fmr_list); + return fmr->device->ops.unmap_fmr(fmr_list); } EXPORT_SYMBOL(ib_unmap_fmr); @@ -2018,7 +2038,7 @@ int ib_dealloc_fmr(struct ib_fmr *fmr) int ret; pd = fmr->pd; - ret = fmr->device->dealloc_fmr(fmr); + ret = fmr->device->ops.dealloc_fmr(fmr); if (!ret) atomic_dec(&pd->usecnt); @@ -2070,14 +2090,14 @@ int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) { int ret; - if (!qp->device->attach_mcast) + if (!qp->device->ops.attach_mcast) return -EOPNOTSUPP; if (!rdma_is_multicast_addr((struct in6_addr *)gid->raw) || qp->qp_type != IB_QPT_UD || !is_valid_mcast_lid(qp, lid)) return -EINVAL; - ret = qp->device->attach_mcast(qp, gid, lid); + ret = qp->device->ops.attach_mcast(qp, gid, lid); if (!ret) atomic_inc(&qp->usecnt); return ret; @@ -2088,14 +2108,14 @@ int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid) { int ret; - if (!qp->device->detach_mcast) + if (!qp->device->ops.detach_mcast) return -EOPNOTSUPP; if (!rdma_is_multicast_addr((struct in6_addr *)gid->raw) || qp->qp_type != IB_QPT_UD || !is_valid_mcast_lid(qp, lid)) return -EINVAL; - ret = qp->device->detach_mcast(qp, gid, lid); + ret = qp->device->ops.detach_mcast(qp, gid, lid); if (!ret) atomic_dec(&qp->usecnt); return ret; @@ -2106,10 +2126,10 @@ struct ib_xrcd *__ib_alloc_xrcd(struct ib_device *device, const char *caller) { struct ib_xrcd *xrcd; - if (!device->alloc_xrcd) + if (!device->ops.alloc_xrcd) return ERR_PTR(-EOPNOTSUPP); - xrcd = device->alloc_xrcd(device, NULL, NULL); + xrcd = device->ops.alloc_xrcd(device, NULL, NULL); if (!IS_ERR(xrcd)) { xrcd->device = device; xrcd->inode = NULL; @@ -2137,7 +2157,7 @@ int ib_dealloc_xrcd(struct ib_xrcd *xrcd) return ret; } - return xrcd->device->dealloc_xrcd(xrcd); + return xrcd->device->ops.dealloc_xrcd(xrcd); } EXPORT_SYMBOL(ib_dealloc_xrcd); @@ -2160,10 +2180,10 @@ struct ib_wq *ib_create_wq(struct ib_pd *pd, { struct ib_wq *wq; - if (!pd->device->create_wq) + if (!pd->device->ops.create_wq) return ERR_PTR(-EOPNOTSUPP); - wq = pd->device->create_wq(pd, wq_attr, NULL); + wq = pd->device->ops.create_wq(pd, wq_attr, NULL); if (!IS_ERR(wq)) { wq->event_handler = wq_attr->event_handler; wq->wq_context = wq_attr->wq_context; @@ -2193,7 +2213,7 @@ int ib_destroy_wq(struct ib_wq *wq) if (atomic_read(&wq->usecnt)) return -EBUSY; - err = wq->device->destroy_wq(wq); + err = wq->device->ops.destroy_wq(wq); if (!err) { atomic_dec(&pd->usecnt); atomic_dec(&cq->usecnt); @@ -2215,10 +2235,10 @@ int ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr, { int err; - if (!wq->device->modify_wq) + if (!wq->device->ops.modify_wq) return -EOPNOTSUPP; - err = wq->device->modify_wq(wq, wq_attr, wq_attr_mask, NULL); + err = wq->device->ops.modify_wq(wq, wq_attr, wq_attr_mask, NULL); return err; } EXPORT_SYMBOL(ib_modify_wq); @@ -2240,12 +2260,12 @@ struct ib_rwq_ind_table *ib_create_rwq_ind_table(struct ib_device *device, int i; u32 table_size; - if (!device->create_rwq_ind_table) + if (!device->ops.create_rwq_ind_table) return ERR_PTR(-EOPNOTSUPP); table_size = (1 << init_attr->log_ind_tbl_size); - rwq_ind_table = device->create_rwq_ind_table(device, - init_attr, NULL); + rwq_ind_table = device->ops.create_rwq_ind_table(device, + init_attr, NULL); if (IS_ERR(rwq_ind_table)) return rwq_ind_table; @@ -2275,7 +2295,7 @@ int ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *rwq_ind_table) if (atomic_read(&rwq_ind_table->usecnt)) return -EBUSY; - err = rwq_ind_table->device->destroy_rwq_ind_table(rwq_ind_table); + err = rwq_ind_table->device->ops.destroy_rwq_ind_table(rwq_ind_table); if (!err) { for (i = 0; i < table_size; i++) atomic_dec(&ind_tbl[i]->usecnt); @@ -2288,48 +2308,50 @@ EXPORT_SYMBOL(ib_destroy_rwq_ind_table); int ib_check_mr_status(struct ib_mr *mr, u32 check_mask, struct ib_mr_status *mr_status) { - return mr->device->check_mr_status ? - mr->device->check_mr_status(mr, check_mask, mr_status) : -EOPNOTSUPP; + if (!mr->device->ops.check_mr_status) + return -EOPNOTSUPP; + + return mr->device->ops.check_mr_status(mr, check_mask, mr_status); } EXPORT_SYMBOL(ib_check_mr_status); int ib_set_vf_link_state(struct ib_device *device, int vf, u8 port, int state) { - if (!device->set_vf_link_state) + if (!device->ops.set_vf_link_state) return -EOPNOTSUPP; - return device->set_vf_link_state(device, vf, port, state); + return device->ops.set_vf_link_state(device, vf, port, state); } EXPORT_SYMBOL(ib_set_vf_link_state); int ib_get_vf_config(struct ib_device *device, int vf, u8 port, struct ifla_vf_info *info) { - if (!device->get_vf_config) + if (!device->ops.get_vf_config) return -EOPNOTSUPP; - return device->get_vf_config(device, vf, port, info); + return device->ops.get_vf_config(device, vf, port, info); } EXPORT_SYMBOL(ib_get_vf_config); int ib_get_vf_stats(struct ib_device *device, int vf, u8 port, struct ifla_vf_stats *stats) { - if (!device->get_vf_stats) + if (!device->ops.get_vf_stats) return -EOPNOTSUPP; - return device->get_vf_stats(device, vf, port, stats); + return device->ops.get_vf_stats(device, vf, port, stats); } EXPORT_SYMBOL(ib_get_vf_stats); int ib_set_vf_guid(struct ib_device *device, int vf, u8 port, u64 guid, int type) { - if (!device->set_vf_guid) + if (!device->ops.set_vf_guid) return -EOPNOTSUPP; - return device->set_vf_guid(device, vf, port, guid, type); + return device->ops.set_vf_guid(device, vf, port, guid, type); } EXPORT_SYMBOL(ib_set_vf_guid); @@ -2361,12 +2383,12 @@ EXPORT_SYMBOL(ib_set_vf_guid); int ib_map_mr_sg(struct ib_mr *mr, struct scatterlist *sg, int sg_nents, unsigned int *sg_offset, unsigned int page_size) { - if (unlikely(!mr->device->map_mr_sg)) + if (unlikely(!mr->device->ops.map_mr_sg)) return -EOPNOTSUPP; mr->page_size = page_size; - return mr->device->map_mr_sg(mr, sg, sg_nents, sg_offset); + return mr->device->ops.map_mr_sg(mr, sg, sg_nents, sg_offset); } EXPORT_SYMBOL(ib_map_mr_sg); @@ -2565,8 +2587,8 @@ static void __ib_drain_rq(struct ib_qp *qp) */ void ib_drain_sq(struct ib_qp *qp) { - if (qp->device->drain_sq) - qp->device->drain_sq(qp); + if (qp->device->ops.drain_sq) + qp->device->ops.drain_sq(qp); else __ib_drain_sq(qp); } @@ -2593,8 +2615,8 @@ EXPORT_SYMBOL(ib_drain_sq); */ void ib_drain_rq(struct ib_qp *qp) { - if (qp->device->drain_rq) - qp->device->drain_rq(qp); + if (qp->device->ops.drain_rq) + qp->device->ops.drain_rq(qp); else __ib_drain_rq(qp); } @@ -2632,10 +2654,11 @@ struct net_device *rdma_alloc_netdev(struct ib_device *device, u8 port_num, struct net_device *netdev; int rc; - if (!device->rdma_netdev_get_params) + if (!device->ops.rdma_netdev_get_params) return ERR_PTR(-EOPNOTSUPP); - rc = device->rdma_netdev_get_params(device, port_num, type, ¶ms); + rc = device->ops.rdma_netdev_get_params(device, port_num, type, + ¶ms); if (rc) return ERR_PTR(rc); @@ -2657,10 +2680,11 @@ int rdma_init_netdev(struct ib_device *device, u8 port_num, struct rdma_netdev_alloc_params params; int rc; - if (!device->rdma_netdev_get_params) + if (!device->ops.rdma_netdev_get_params) return -EOPNOTSUPP; - rc = device->rdma_netdev_get_params(device, port_num, type, ¶ms); + rc = device->ops.rdma_netdev_get_params(device, port_num, type, + ¶ms); if (rc) return rc; |