/* * Copyright (c) 2005 Topspin Communications. All rights reserved. * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved. * Copyright (c) 2005 PathScale, Inc. All rights reserved. * Copyright (c) 2006 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include <linux/file.h> #include <linux/fs.h> #include <linux/slab.h> #include <linux/sched.h> #include <linux/uaccess.h> #include <rdma/uverbs_types.h> #include <rdma/uverbs_std_types.h> #include "rdma_core.h" #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) { … } /* * 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) { … } /* * 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) { … } /* * 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 { … }; static int uverbs_request_start(struct uverbs_attr_bundle *attrs, struct uverbs_req_iter *iter, void *req, size_t req_len) { … } static int uverbs_request_next(struct uverbs_req_iter *iter, void *val, size_t len) { … } static const void __user *uverbs_request_next_ptr(struct uverbs_req_iter *iter, size_t len) { … } static int uverbs_request_finish(struct uverbs_req_iter *iter) { … } /* * When calling a destroy function during an error unwind we need to pass in * the udata that is sanitized of all user arguments. Ie from the driver * perspective it looks like no udata was passed. */ struct ib_udata *uverbs_get_cleared_udata(struct uverbs_attr_bundle *attrs) { … } static struct ib_uverbs_completion_event_file * _ib_uverbs_lookup_comp_file(s32 fd, struct uverbs_attr_bundle *attrs) { … } #define ib_uverbs_lookup_comp_file(_fd, _ufile) … int ib_alloc_ucontext(struct uverbs_attr_bundle *attrs) { … } int ib_init_ucontext(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_get_context(struct uverbs_attr_bundle *attrs) { … } static void copy_query_dev_fields(struct ib_ucontext *ucontext, struct ib_uverbs_query_device_resp *resp, struct ib_device_attr *attr) { … } static int ib_uverbs_query_device(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_query_port(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_alloc_pd(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_dealloc_pd(struct uverbs_attr_bundle *attrs) { … } struct xrcd_table_entry { … }; static int xrcd_table_insert(struct ib_uverbs_device *dev, struct inode *inode, struct ib_xrcd *xrcd) { … } static struct xrcd_table_entry *xrcd_table_search(struct ib_uverbs_device *dev, struct inode *inode) { … } static struct ib_xrcd *find_xrcd(struct ib_uverbs_device *dev, struct inode *inode) { … } static void xrcd_table_delete(struct ib_uverbs_device *dev, struct inode *inode) { … } static int ib_uverbs_open_xrcd(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_close_xrcd(struct uverbs_attr_bundle *attrs) { … } int ib_uverbs_dealloc_xrcd(struct ib_uobject *uobject, struct ib_xrcd *xrcd, enum rdma_remove_reason why, struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_reg_mr(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_rereg_mr(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_dereg_mr(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_alloc_mw(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_dealloc_mw(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_create_comp_channel(struct uverbs_attr_bundle *attrs) { … } static int create_cq(struct uverbs_attr_bundle *attrs, struct ib_uverbs_ex_create_cq *cmd) { … } static int ib_uverbs_create_cq(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_ex_create_cq(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_resize_cq(struct uverbs_attr_bundle *attrs) { … } static int copy_wc_to_user(struct ib_device *ib_dev, void __user *dest, struct ib_wc *wc) { … } static int ib_uverbs_poll_cq(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_req_notify_cq(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_destroy_cq(struct uverbs_attr_bundle *attrs) { … } static int create_qp(struct uverbs_attr_bundle *attrs, struct ib_uverbs_ex_create_qp *cmd) { … } static int ib_uverbs_create_qp(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_ex_create_qp(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_open_qp(struct uverbs_attr_bundle *attrs) { … } static void copy_ah_attr_to_uverbs(struct ib_uverbs_qp_dest *uverb_attr, struct rdma_ah_attr *rdma_attr) { … } static int ib_uverbs_query_qp(struct uverbs_attr_bundle *attrs) { … } /* Remove ignored fields set in the attribute mask */ static int modify_qp_mask(enum ib_qp_type qp_type, int mask) { … } static void copy_ah_attr_from_uverbs(struct ib_device *dev, struct rdma_ah_attr *rdma_attr, struct ib_uverbs_qp_dest *uverb_attr) { … } static int modify_qp(struct uverbs_attr_bundle *attrs, struct ib_uverbs_ex_modify_qp *cmd) { … } static int ib_uverbs_modify_qp(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_ex_modify_qp(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_destroy_qp(struct uverbs_attr_bundle *attrs) { … } static void *alloc_wr(size_t wr_size, __u32 num_sge) { … } static int ib_uverbs_post_send(struct uverbs_attr_bundle *attrs) { … } static struct ib_recv_wr * ib_uverbs_unmarshall_recv(struct uverbs_req_iter *iter, u32 wr_count, u32 wqe_size, u32 sge_count) { … } static int ib_uverbs_post_recv(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_post_srq_recv(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_create_ah(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_destroy_ah(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_attach_mcast(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_detach_mcast(struct uverbs_attr_bundle *attrs) { … } struct ib_uflow_resources *flow_resources_alloc(size_t num_specs) { … } EXPORT_SYMBOL(…); void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res) { … } EXPORT_SYMBOL(…); void flow_resources_add(struct ib_uflow_resources *uflow_res, enum ib_flow_spec_type type, void *ibobj) { … } EXPORT_SYMBOL(…); static int kern_spec_to_ib_spec_action(struct uverbs_attr_bundle *attrs, struct ib_uverbs_flow_spec *kern_spec, union ib_flow_spec *ib_spec, struct ib_uflow_resources *uflow_res) { … } static ssize_t spec_filter_size(const void *kern_spec_filter, u16 kern_filter_size, u16 ib_real_filter_sz) { … } int ib_uverbs_kern_spec_to_ib_spec_filter(enum ib_flow_spec_type type, const void *kern_spec_mask, const void *kern_spec_val, size_t kern_filter_sz, union ib_flow_spec *ib_spec) { … } static int kern_spec_to_ib_spec_filter(struct ib_uverbs_flow_spec *kern_spec, union ib_flow_spec *ib_spec) { … } 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) { … } static int ib_uverbs_ex_create_wq(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_ex_destroy_wq(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_ex_modify_wq(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_ex_create_rwq_ind_table(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_ex_destroy_rwq_ind_table(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_ex_create_flow(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_ex_destroy_flow(struct uverbs_attr_bundle *attrs) { … } static int __uverbs_create_xsrq(struct uverbs_attr_bundle *attrs, struct ib_uverbs_create_xsrq *cmd, struct ib_udata *udata) { … } static int ib_uverbs_create_srq(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_create_xsrq(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_modify_srq(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_query_srq(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_destroy_srq(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_ex_query_device(struct uverbs_attr_bundle *attrs) { … } static int ib_uverbs_ex_modify_cq(struct uverbs_attr_bundle *attrs) { … } /* * 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 UAPI_DEF_WRITE_IO(req, resp) … #define UAPI_DEF_WRITE_I(req) … #define UAPI_DEF_WRITE_UDATA_IO(req, resp) … #define UAPI_DEF_WRITE_UDATA_I(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) … #define UAPI_DEF_WRITE_I_EX(req, req_last_member) … const struct uapi_definition uverbs_def_write_intf[] = …;
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