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4048 lines
106 KiB
4048 lines
106 KiB
/* |
|
* 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) |
|
{ |
|
int ret; |
|
|
|
if (uverbs_attr_is_valid(attrs, UVERBS_ATTR_CORE_OUT)) |
|
return uverbs_copy_to_struct_or_zero( |
|
attrs, UVERBS_ATTR_CORE_OUT, resp, resp_len); |
|
|
|
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 (void __force __user *)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; |
|
} |
|
|
|
/* |
|
* 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) |
|
{ |
|
attrs->driver_udata = (struct ib_udata){}; |
|
return &attrs->driver_udata; |
|
} |
|
|
|
static struct ib_uverbs_completion_event_file * |
|
_ib_uverbs_lookup_comp_file(s32 fd, struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uobject *uobj = ufd_get_read(UVERBS_OBJECT_COMP_CHANNEL, |
|
fd, attrs); |
|
|
|
if (IS_ERR(uobj)) |
|
return (void *)uobj; |
|
|
|
uverbs_uobject_get(uobj); |
|
uobj_put_read(uobj); |
|
|
|
return container_of(uobj, struct ib_uverbs_completion_event_file, |
|
uobj); |
|
} |
|
#define ib_uverbs_lookup_comp_file(_fd, _ufile) \ |
|
_ib_uverbs_lookup_comp_file((_fd)*typecheck(s32, _fd), _ufile) |
|
|
|
int ib_alloc_ucontext(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_file *ufile = attrs->ufile; |
|
struct ib_ucontext *ucontext; |
|
struct ib_device *ib_dev; |
|
|
|
ib_dev = srcu_dereference(ufile->device->ib_dev, |
|
&ufile->device->disassociate_srcu); |
|
if (!ib_dev) |
|
return -EIO; |
|
|
|
ucontext = rdma_zalloc_drv_obj(ib_dev, ib_ucontext); |
|
if (!ucontext) |
|
return -ENOMEM; |
|
|
|
ucontext->device = ib_dev; |
|
ucontext->ufile = ufile; |
|
xa_init_flags(&ucontext->mmap_xa, XA_FLAGS_ALLOC); |
|
|
|
rdma_restrack_new(&ucontext->res, RDMA_RESTRACK_CTX); |
|
rdma_restrack_set_name(&ucontext->res, NULL); |
|
attrs->context = ucontext; |
|
return 0; |
|
} |
|
|
|
int ib_init_ucontext(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_ucontext *ucontext = attrs->context; |
|
struct ib_uverbs_file *file = attrs->ufile; |
|
int ret; |
|
|
|
if (!down_read_trylock(&file->hw_destroy_rwsem)) |
|
return -EIO; |
|
mutex_lock(&file->ucontext_lock); |
|
if (file->ucontext) { |
|
ret = -EINVAL; |
|
goto err; |
|
} |
|
|
|
ret = ib_rdmacg_try_charge(&ucontext->cg_obj, ucontext->device, |
|
RDMACG_RESOURCE_HCA_HANDLE); |
|
if (ret) |
|
goto err; |
|
|
|
ret = ucontext->device->ops.alloc_ucontext(ucontext, |
|
&attrs->driver_udata); |
|
if (ret) |
|
goto err_uncharge; |
|
|
|
rdma_restrack_add(&ucontext->res); |
|
|
|
/* |
|
* Make sure that ib_uverbs_get_ucontext() sees the pointer update |
|
* only after all writes to setup the ucontext have completed |
|
*/ |
|
smp_store_release(&file->ucontext, ucontext); |
|
|
|
mutex_unlock(&file->ucontext_lock); |
|
up_read(&file->hw_destroy_rwsem); |
|
return 0; |
|
|
|
err_uncharge: |
|
ib_rdmacg_uncharge(&ucontext->cg_obj, ucontext->device, |
|
RDMACG_RESOURCE_HCA_HANDLE); |
|
err: |
|
mutex_unlock(&file->ucontext_lock); |
|
up_read(&file->hw_destroy_rwsem); |
|
return ret; |
|
} |
|
|
|
static int ib_uverbs_get_context(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_get_context_resp resp; |
|
struct ib_uverbs_get_context cmd; |
|
struct ib_device *ib_dev; |
|
struct ib_uobject *uobj; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
ret = ib_alloc_ucontext(attrs); |
|
if (ret) |
|
return ret; |
|
|
|
uobj = uobj_alloc(UVERBS_OBJECT_ASYNC_EVENT, attrs, &ib_dev); |
|
if (IS_ERR(uobj)) { |
|
ret = PTR_ERR(uobj); |
|
goto err_ucontext; |
|
} |
|
|
|
resp = (struct ib_uverbs_get_context_resp){ |
|
.num_comp_vectors = attrs->ufile->device->num_comp_vectors, |
|
.async_fd = uobj->id, |
|
}; |
|
ret = uverbs_response(attrs, &resp, sizeof(resp)); |
|
if (ret) |
|
goto err_uobj; |
|
|
|
ret = ib_init_ucontext(attrs); |
|
if (ret) |
|
goto err_uobj; |
|
|
|
ib_uverbs_init_async_event_file( |
|
container_of(uobj, struct ib_uverbs_async_event_file, uobj)); |
|
rdma_alloc_commit_uobject(uobj, attrs); |
|
return 0; |
|
|
|
err_uobj: |
|
rdma_alloc_abort_uobject(uobj, attrs, false); |
|
err_ucontext: |
|
rdma_restrack_put(&attrs->context->res); |
|
kfree(attrs->context); |
|
attrs->context = NULL; |
|
return ret; |
|
} |
|
|
|
static void copy_query_dev_fields(struct ib_ucontext *ucontext, |
|
struct ib_uverbs_query_device_resp *resp, |
|
struct ib_device_attr *attr) |
|
{ |
|
struct ib_device *ib_dev = ucontext->device; |
|
|
|
resp->fw_ver = attr->fw_ver; |
|
resp->node_guid = ib_dev->node_guid; |
|
resp->sys_image_guid = attr->sys_image_guid; |
|
resp->max_mr_size = attr->max_mr_size; |
|
resp->page_size_cap = attr->page_size_cap; |
|
resp->vendor_id = attr->vendor_id; |
|
resp->vendor_part_id = attr->vendor_part_id; |
|
resp->hw_ver = attr->hw_ver; |
|
resp->max_qp = attr->max_qp; |
|
resp->max_qp_wr = attr->max_qp_wr; |
|
resp->device_cap_flags = lower_32_bits(attr->device_cap_flags); |
|
resp->max_sge = min(attr->max_send_sge, attr->max_recv_sge); |
|
resp->max_sge_rd = attr->max_sge_rd; |
|
resp->max_cq = attr->max_cq; |
|
resp->max_cqe = attr->max_cqe; |
|
resp->max_mr = attr->max_mr; |
|
resp->max_pd = attr->max_pd; |
|
resp->max_qp_rd_atom = attr->max_qp_rd_atom; |
|
resp->max_ee_rd_atom = attr->max_ee_rd_atom; |
|
resp->max_res_rd_atom = attr->max_res_rd_atom; |
|
resp->max_qp_init_rd_atom = attr->max_qp_init_rd_atom; |
|
resp->max_ee_init_rd_atom = attr->max_ee_init_rd_atom; |
|
resp->atomic_cap = attr->atomic_cap; |
|
resp->max_ee = attr->max_ee; |
|
resp->max_rdd = attr->max_rdd; |
|
resp->max_mw = attr->max_mw; |
|
resp->max_raw_ipv6_qp = attr->max_raw_ipv6_qp; |
|
resp->max_raw_ethy_qp = attr->max_raw_ethy_qp; |
|
resp->max_mcast_grp = attr->max_mcast_grp; |
|
resp->max_mcast_qp_attach = attr->max_mcast_qp_attach; |
|
resp->max_total_mcast_qp_attach = attr->max_total_mcast_qp_attach; |
|
resp->max_ah = attr->max_ah; |
|
resp->max_srq = attr->max_srq; |
|
resp->max_srq_wr = attr->max_srq_wr; |
|
resp->max_srq_sge = attr->max_srq_sge; |
|
resp->max_pkeys = attr->max_pkeys; |
|
resp->local_ca_ack_delay = attr->local_ca_ack_delay; |
|
resp->phys_port_cnt = min_t(u32, ib_dev->phys_port_cnt, U8_MAX); |
|
} |
|
|
|
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(attrs); |
|
if (IS_ERR(ucontext)) |
|
return PTR_ERR(ucontext); |
|
|
|
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); |
|
|
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
} |
|
|
|
static int ib_uverbs_query_port(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_query_port cmd; |
|
struct ib_uverbs_query_port_resp resp; |
|
struct ib_port_attr attr; |
|
int ret; |
|
struct ib_ucontext *ucontext; |
|
struct ib_device *ib_dev; |
|
|
|
ucontext = ib_uverbs_get_ucontext(attrs); |
|
if (IS_ERR(ucontext)) |
|
return PTR_ERR(ucontext); |
|
ib_dev = ucontext->device; |
|
|
|
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); |
|
|
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
} |
|
|
|
static int ib_uverbs_alloc_pd(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_alloc_pd_resp resp = {}; |
|
struct ib_uverbs_alloc_pd cmd; |
|
struct ib_uobject *uobj; |
|
struct ib_pd *pd; |
|
int ret; |
|
struct ib_device *ib_dev; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
uobj = uobj_alloc(UVERBS_OBJECT_PD, attrs, &ib_dev); |
|
if (IS_ERR(uobj)) |
|
return PTR_ERR(uobj); |
|
|
|
pd = rdma_zalloc_drv_obj(ib_dev, ib_pd); |
|
if (!pd) { |
|
ret = -ENOMEM; |
|
goto err; |
|
} |
|
|
|
pd->device = ib_dev; |
|
pd->uobject = uobj; |
|
atomic_set(&pd->usecnt, 0); |
|
|
|
rdma_restrack_new(&pd->res, RDMA_RESTRACK_PD); |
|
rdma_restrack_set_name(&pd->res, NULL); |
|
|
|
ret = ib_dev->ops.alloc_pd(pd, &attrs->driver_udata); |
|
if (ret) |
|
goto err_alloc; |
|
rdma_restrack_add(&pd->res); |
|
|
|
uobj->object = pd; |
|
uobj_finalize_uobj_create(uobj, attrs); |
|
|
|
resp.pd_handle = uobj->id; |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
err_alloc: |
|
rdma_restrack_put(&pd->res); |
|
kfree(pd); |
|
err: |
|
uobj_alloc_abort(uobj, attrs); |
|
return ret; |
|
} |
|
|
|
static int ib_uverbs_dealloc_pd(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_dealloc_pd cmd; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
return uobj_perform_destroy(UVERBS_OBJECT_PD, cmd.pd_handle, attrs); |
|
} |
|
|
|
struct xrcd_table_entry { |
|
struct rb_node node; |
|
struct ib_xrcd *xrcd; |
|
struct inode *inode; |
|
}; |
|
|
|
static int xrcd_table_insert(struct ib_uverbs_device *dev, |
|
struct inode *inode, |
|
struct ib_xrcd *xrcd) |
|
{ |
|
struct xrcd_table_entry *entry, *scan; |
|
struct rb_node **p = &dev->xrcd_tree.rb_node; |
|
struct rb_node *parent = NULL; |
|
|
|
entry = kmalloc(sizeof *entry, GFP_KERNEL); |
|
if (!entry) |
|
return -ENOMEM; |
|
|
|
entry->xrcd = xrcd; |
|
entry->inode = inode; |
|
|
|
while (*p) { |
|
parent = *p; |
|
scan = rb_entry(parent, struct xrcd_table_entry, node); |
|
|
|
if (inode < scan->inode) { |
|
p = &(*p)->rb_left; |
|
} else if (inode > scan->inode) { |
|
p = &(*p)->rb_right; |
|
} else { |
|
kfree(entry); |
|
return -EEXIST; |
|
} |
|
} |
|
|
|
rb_link_node(&entry->node, parent, p); |
|
rb_insert_color(&entry->node, &dev->xrcd_tree); |
|
igrab(inode); |
|
return 0; |
|
} |
|
|
|
static struct xrcd_table_entry *xrcd_table_search(struct ib_uverbs_device *dev, |
|
struct inode *inode) |
|
{ |
|
struct xrcd_table_entry *entry; |
|
struct rb_node *p = dev->xrcd_tree.rb_node; |
|
|
|
while (p) { |
|
entry = rb_entry(p, struct xrcd_table_entry, node); |
|
|
|
if (inode < entry->inode) |
|
p = p->rb_left; |
|
else if (inode > entry->inode) |
|
p = p->rb_right; |
|
else |
|
return entry; |
|
} |
|
|
|
return NULL; |
|
} |
|
|
|
static struct ib_xrcd *find_xrcd(struct ib_uverbs_device *dev, struct inode *inode) |
|
{ |
|
struct xrcd_table_entry *entry; |
|
|
|
entry = xrcd_table_search(dev, inode); |
|
if (!entry) |
|
return NULL; |
|
|
|
return entry->xrcd; |
|
} |
|
|
|
static void xrcd_table_delete(struct ib_uverbs_device *dev, |
|
struct inode *inode) |
|
{ |
|
struct xrcd_table_entry *entry; |
|
|
|
entry = xrcd_table_search(dev, inode); |
|
if (entry) { |
|
iput(inode); |
|
rb_erase(&entry->node, &dev->xrcd_tree); |
|
kfree(entry); |
|
} |
|
} |
|
|
|
static int ib_uverbs_open_xrcd(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_device *ibudev = attrs->ufile->device; |
|
struct ib_uverbs_open_xrcd_resp resp = {}; |
|
struct ib_uverbs_open_xrcd cmd; |
|
struct ib_uxrcd_object *obj; |
|
struct ib_xrcd *xrcd = NULL; |
|
struct inode *inode = NULL; |
|
int new_xrcd = 0; |
|
struct ib_device *ib_dev; |
|
struct fd f = {}; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
mutex_lock(&ibudev->xrcd_tree_mutex); |
|
|
|
if (cmd.fd != -1) { |
|
/* search for file descriptor */ |
|
f = fdget(cmd.fd); |
|
if (!f.file) { |
|
ret = -EBADF; |
|
goto err_tree_mutex_unlock; |
|
} |
|
|
|
inode = file_inode(f.file); |
|
xrcd = find_xrcd(ibudev, inode); |
|
if (!xrcd && !(cmd.oflags & O_CREAT)) { |
|
/* no file descriptor. Need CREATE flag */ |
|
ret = -EAGAIN; |
|
goto err_tree_mutex_unlock; |
|
} |
|
|
|
if (xrcd && cmd.oflags & O_EXCL) { |
|
ret = -EINVAL; |
|
goto err_tree_mutex_unlock; |
|
} |
|
} |
|
|
|
obj = (struct ib_uxrcd_object *)uobj_alloc(UVERBS_OBJECT_XRCD, attrs, |
|
&ib_dev); |
|
if (IS_ERR(obj)) { |
|
ret = PTR_ERR(obj); |
|
goto err_tree_mutex_unlock; |
|
} |
|
|
|
if (!xrcd) { |
|
xrcd = ib_alloc_xrcd_user(ib_dev, inode, &attrs->driver_udata); |
|
if (IS_ERR(xrcd)) { |
|
ret = PTR_ERR(xrcd); |
|
goto err; |
|
} |
|
new_xrcd = 1; |
|
} |
|
|
|
atomic_set(&obj->refcnt, 0); |
|
obj->uobject.object = xrcd; |
|
|
|
if (inode) { |
|
if (new_xrcd) { |
|
/* create new inode/xrcd table entry */ |
|
ret = xrcd_table_insert(ibudev, inode, xrcd); |
|
if (ret) |
|
goto err_dealloc_xrcd; |
|
} |
|
atomic_inc(&xrcd->usecnt); |
|
} |
|
|
|
if (f.file) |
|
fdput(f); |
|
|
|
mutex_unlock(&ibudev->xrcd_tree_mutex); |
|
uobj_finalize_uobj_create(&obj->uobject, attrs); |
|
|
|
resp.xrcd_handle = obj->uobject.id; |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
err_dealloc_xrcd: |
|
ib_dealloc_xrcd_user(xrcd, uverbs_get_cleared_udata(attrs)); |
|
|
|
err: |
|
uobj_alloc_abort(&obj->uobject, attrs); |
|
|
|
err_tree_mutex_unlock: |
|
if (f.file) |
|
fdput(f); |
|
|
|
mutex_unlock(&ibudev->xrcd_tree_mutex); |
|
|
|
return ret; |
|
} |
|
|
|
static int ib_uverbs_close_xrcd(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_close_xrcd cmd; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
return uobj_perform_destroy(UVERBS_OBJECT_XRCD, cmd.xrcd_handle, attrs); |
|
} |
|
|
|
int ib_uverbs_dealloc_xrcd(struct ib_uobject *uobject, struct ib_xrcd *xrcd, |
|
enum rdma_remove_reason why, |
|
struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct inode *inode; |
|
int ret; |
|
struct ib_uverbs_device *dev = attrs->ufile->device; |
|
|
|
inode = xrcd->inode; |
|
if (inode && !atomic_dec_and_test(&xrcd->usecnt)) |
|
return 0; |
|
|
|
ret = ib_dealloc_xrcd_user(xrcd, &attrs->driver_udata); |
|
if (ret) { |
|
atomic_inc(&xrcd->usecnt); |
|
return ret; |
|
} |
|
|
|
if (inode) |
|
xrcd_table_delete(dev, inode); |
|
|
|
return 0; |
|
} |
|
|
|
static int ib_uverbs_reg_mr(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_reg_mr_resp resp = {}; |
|
struct ib_uverbs_reg_mr cmd; |
|
struct ib_uobject *uobj; |
|
struct ib_pd *pd; |
|
struct ib_mr *mr; |
|
int ret; |
|
struct ib_device *ib_dev; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
if ((cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK)) |
|
return -EINVAL; |
|
|
|
uobj = uobj_alloc(UVERBS_OBJECT_MR, attrs, &ib_dev); |
|
if (IS_ERR(uobj)) |
|
return PTR_ERR(uobj); |
|
|
|
ret = ib_check_mr_access(ib_dev, cmd.access_flags); |
|
if (ret) |
|
goto err_free; |
|
|
|
pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs); |
|
if (!pd) { |
|
ret = -EINVAL; |
|
goto err_free; |
|
} |
|
|
|
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; |
|
} |
|
|
|
mr->device = pd->device; |
|
mr->pd = pd; |
|
mr->type = IB_MR_TYPE_USER; |
|
mr->dm = NULL; |
|
mr->sig_attrs = NULL; |
|
mr->uobject = uobj; |
|
atomic_inc(&pd->usecnt); |
|
mr->iova = cmd.hca_va; |
|
|
|
rdma_restrack_new(&mr->res, RDMA_RESTRACK_MR); |
|
rdma_restrack_set_name(&mr->res, NULL); |
|
rdma_restrack_add(&mr->res); |
|
|
|
uobj->object = mr; |
|
uobj_put_obj_read(pd); |
|
uobj_finalize_uobj_create(uobj, attrs); |
|
|
|
resp.lkey = mr->lkey; |
|
resp.rkey = mr->rkey; |
|
resp.mr_handle = uobj->id; |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
err_put: |
|
uobj_put_obj_read(pd); |
|
err_free: |
|
uobj_alloc_abort(uobj, attrs); |
|
return ret; |
|
} |
|
|
|
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_mr *mr; |
|
int ret; |
|
struct ib_uobject *uobj; |
|
struct ib_uobject *new_uobj; |
|
struct ib_device *ib_dev; |
|
struct ib_pd *orig_pd; |
|
struct ib_pd *new_pd; |
|
struct ib_mr *new_mr; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
if (!cmd.flags) |
|
return -EINVAL; |
|
|
|
if (cmd.flags & ~IB_MR_REREG_SUPPORTED) |
|
return -EOPNOTSUPP; |
|
|
|
if ((cmd.flags & IB_MR_REREG_TRANS) && |
|
(cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK)) |
|
return -EINVAL; |
|
|
|
uobj = uobj_get_write(UVERBS_OBJECT_MR, cmd.mr_handle, attrs); |
|
if (IS_ERR(uobj)) |
|
return PTR_ERR(uobj); |
|
|
|
mr = uobj->object; |
|
|
|
if (mr->dm) { |
|
ret = -EINVAL; |
|
goto put_uobjs; |
|
} |
|
|
|
if (cmd.flags & IB_MR_REREG_ACCESS) { |
|
ret = ib_check_mr_access(mr->device, cmd.access_flags); |
|
if (ret) |
|
goto put_uobjs; |
|
} |
|
|
|
orig_pd = mr->pd; |
|
if (cmd.flags & IB_MR_REREG_PD) { |
|
new_pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, |
|
attrs); |
|
if (!new_pd) { |
|
ret = -EINVAL; |
|
goto put_uobjs; |
|
} |
|
} else { |
|
new_pd = mr->pd; |
|
} |
|
|
|
/* |
|
* The driver might create a new HW object as part of the rereg, we need |
|
* to have a uobject ready to hold it. |
|
*/ |
|
new_uobj = uobj_alloc(UVERBS_OBJECT_MR, attrs, &ib_dev); |
|
if (IS_ERR(new_uobj)) { |
|
ret = PTR_ERR(new_uobj); |
|
goto put_uobj_pd; |
|
} |
|
|
|
new_mr = ib_dev->ops.rereg_user_mr(mr, cmd.flags, cmd.start, cmd.length, |
|
cmd.hca_va, cmd.access_flags, new_pd, |
|
&attrs->driver_udata); |
|
if (IS_ERR(new_mr)) { |
|
ret = PTR_ERR(new_mr); |
|
goto put_new_uobj; |
|
} |
|
if (new_mr) { |
|
new_mr->device = new_pd->device; |
|
new_mr->pd = new_pd; |
|
new_mr->type = IB_MR_TYPE_USER; |
|
new_mr->dm = NULL; |
|
new_mr->sig_attrs = NULL; |
|
new_mr->uobject = uobj; |
|
atomic_inc(&new_pd->usecnt); |
|
new_mr->iova = cmd.hca_va; |
|
new_uobj->object = new_mr; |
|
|
|
rdma_restrack_new(&new_mr->res, RDMA_RESTRACK_MR); |
|
rdma_restrack_set_name(&new_mr->res, NULL); |
|
rdma_restrack_add(&new_mr->res); |
|
|
|
/* |
|
* The new uobj for the new HW object is put into the same spot |
|
* in the IDR and the old uobj & HW object is deleted. |
|
*/ |
|
rdma_assign_uobject(uobj, new_uobj, attrs); |
|
rdma_alloc_commit_uobject(new_uobj, attrs); |
|
uobj_put_destroy(uobj); |
|
new_uobj = NULL; |
|
uobj = NULL; |
|
mr = new_mr; |
|
} else { |
|
if (cmd.flags & IB_MR_REREG_PD) { |
|
atomic_dec(&orig_pd->usecnt); |
|
mr->pd = new_pd; |
|
atomic_inc(&new_pd->usecnt); |
|
} |
|
if (cmd.flags & IB_MR_REREG_TRANS) |
|
mr->iova = cmd.hca_va; |
|
} |
|
|
|
memset(&resp, 0, sizeof(resp)); |
|
resp.lkey = mr->lkey; |
|
resp.rkey = mr->rkey; |
|
|
|
ret = uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
put_new_uobj: |
|
if (new_uobj) |
|
uobj_alloc_abort(new_uobj, attrs); |
|
put_uobj_pd: |
|
if (cmd.flags & IB_MR_REREG_PD) |
|
uobj_put_obj_read(new_pd); |
|
|
|
put_uobjs: |
|
if (uobj) |
|
uobj_put_write(uobj); |
|
|
|
return ret; |
|
} |
|
|
|
static int ib_uverbs_dereg_mr(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_dereg_mr cmd; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
return uobj_perform_destroy(UVERBS_OBJECT_MR, cmd.mr_handle, attrs); |
|
} |
|
|
|
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; |
|
int ret; |
|
struct ib_device *ib_dev; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
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, attrs); |
|
if (!pd) { |
|
ret = -EINVAL; |
|
goto err_free; |
|
} |
|
|
|
if (cmd.mw_type != IB_MW_TYPE_1 && cmd.mw_type != IB_MW_TYPE_2) { |
|
ret = -EINVAL; |
|
goto err_put; |
|
} |
|
|
|
mw = rdma_zalloc_drv_obj(ib_dev, ib_mw); |
|
if (!mw) { |
|
ret = -ENOMEM; |
|
goto err_put; |
|
} |
|
|
|
mw->device = ib_dev; |
|
mw->pd = pd; |
|
mw->uobject = uobj; |
|
mw->type = cmd.mw_type; |
|
|
|
ret = pd->device->ops.alloc_mw(mw, &attrs->driver_udata); |
|
if (ret) |
|
goto err_alloc; |
|
|
|
atomic_inc(&pd->usecnt); |
|
|
|
uobj->object = mw; |
|
uobj_put_obj_read(pd); |
|
uobj_finalize_uobj_create(uobj, attrs); |
|
|
|
resp.rkey = mw->rkey; |
|
resp.mw_handle = uobj->id; |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
err_alloc: |
|
kfree(mw); |
|
err_put: |
|
uobj_put_obj_read(pd); |
|
err_free: |
|
uobj_alloc_abort(uobj, attrs); |
|
return ret; |
|
} |
|
|
|
static int ib_uverbs_dealloc_mw(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_dealloc_mw cmd; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
return uobj_perform_destroy(UVERBS_OBJECT_MW, cmd.mw_handle, attrs); |
|
} |
|
|
|
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; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
uobj = uobj_alloc(UVERBS_OBJECT_COMP_CHANNEL, attrs, &ib_dev); |
|
if (IS_ERR(uobj)) |
|
return PTR_ERR(uobj); |
|
|
|
ev_file = container_of(uobj, struct ib_uverbs_completion_event_file, |
|
uobj); |
|
ib_uverbs_init_event_queue(&ev_file->ev_queue); |
|
uobj_finalize_uobj_create(uobj, attrs); |
|
|
|
resp.fd = uobj->id; |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
} |
|
|
|
static int 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; |
|
struct ib_cq *cq; |
|
int ret; |
|
struct ib_uverbs_ex_create_cq_resp resp = {}; |
|
struct ib_cq_init_attr attr = {}; |
|
struct ib_device *ib_dev; |
|
|
|
if (cmd->comp_vector >= attrs->ufile->device->num_comp_vectors) |
|
return -EINVAL; |
|
|
|
obj = (struct ib_ucq_object *)uobj_alloc(UVERBS_OBJECT_CQ, attrs, |
|
&ib_dev); |
|
if (IS_ERR(obj)) |
|
return PTR_ERR(obj); |
|
|
|
if (cmd->comp_channel >= 0) { |
|
ev_file = ib_uverbs_lookup_comp_file(cmd->comp_channel, attrs); |
|
if (IS_ERR(ev_file)) { |
|
ret = PTR_ERR(ev_file); |
|
goto err; |
|
} |
|
} |
|
|
|
obj->uevent.uobject.user_handle = cmd->user_handle; |
|
INIT_LIST_HEAD(&obj->comp_list); |
|
INIT_LIST_HEAD(&obj->uevent.event_list); |
|
|
|
attr.cqe = cmd->cqe; |
|
attr.comp_vector = cmd->comp_vector; |
|
attr.flags = cmd->flags; |
|
|
|
cq = rdma_zalloc_drv_obj(ib_dev, ib_cq); |
|
if (!cq) { |
|
ret = -ENOMEM; |
|
goto err_file; |
|
} |
|
cq->device = ib_dev; |
|
cq->uobject = obj; |
|
cq->comp_handler = ib_uverbs_comp_handler; |
|
cq->event_handler = ib_uverbs_cq_event_handler; |
|
cq->cq_context = ev_file ? &ev_file->ev_queue : NULL; |
|
atomic_set(&cq->usecnt, 0); |
|
|
|
rdma_restrack_new(&cq->res, RDMA_RESTRACK_CQ); |
|
rdma_restrack_set_name(&cq->res, NULL); |
|
|
|
ret = ib_dev->ops.create_cq(cq, &attr, &attrs->driver_udata); |
|
if (ret) |
|
goto err_free; |
|
rdma_restrack_add(&cq->res); |
|
|
|
obj->uevent.uobject.object = cq; |
|
obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file); |
|
if (obj->uevent.event_file) |
|
uverbs_uobject_get(&obj->uevent.event_file->uobj); |
|
uobj_finalize_uobj_create(&obj->uevent.uobject, attrs); |
|
|
|
resp.base.cq_handle = obj->uevent.uobject.id; |
|
resp.base.cqe = cq->cqe; |
|
resp.response_length = uverbs_response_length(attrs, sizeof(resp)); |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
err_free: |
|
rdma_restrack_put(&cq->res); |
|
kfree(cq); |
|
err_file: |
|
if (ev_file) |
|
ib_uverbs_release_ucq(ev_file, obj); |
|
err: |
|
uobj_alloc_abort(&obj->uevent.uobject, attrs); |
|
return ret; |
|
} |
|
|
|
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; |
|
int ret; |
|
|
|
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; |
|
cmd_ex.cqe = cmd.cqe; |
|
cmd_ex.comp_vector = cmd.comp_vector; |
|
cmd_ex.comp_channel = cmd.comp_channel; |
|
|
|
return create_cq(attrs, &cmd_ex); |
|
} |
|
|
|
static int ib_uverbs_ex_create_cq(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_ex_create_cq cmd; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
if (cmd.comp_mask) |
|
return -EINVAL; |
|
|
|
if (cmd.reserved) |
|
return -EINVAL; |
|
|
|
return create_cq(attrs, &cmd); |
|
} |
|
|
|
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_cq *cq; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs); |
|
if (!cq) |
|
return -EINVAL; |
|
|
|
ret = cq->device->ops.resize_cq(cq, cmd.cqe, &attrs->driver_udata); |
|
if (ret) |
|
goto out; |
|
|
|
resp.cqe = cq->cqe; |
|
|
|
ret = uverbs_response(attrs, &resp, sizeof(resp)); |
|
out: |
|
rdma_lookup_put_uobject(&cq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
|
|
return ret; |
|
} |
|
|
|
static int copy_wc_to_user(struct ib_device *ib_dev, void __user *dest, |
|
struct ib_wc *wc) |
|
{ |
|
struct ib_uverbs_wc tmp; |
|
|
|
tmp.wr_id = wc->wr_id; |
|
tmp.status = wc->status; |
|
tmp.opcode = wc->opcode; |
|
tmp.vendor_err = wc->vendor_err; |
|
tmp.byte_len = wc->byte_len; |
|
tmp.ex.imm_data = wc->ex.imm_data; |
|
tmp.qp_num = wc->qp->qp_num; |
|
tmp.src_qp = wc->src_qp; |
|
tmp.wc_flags = wc->wc_flags; |
|
tmp.pkey_index = wc->pkey_index; |
|
if (rdma_cap_opa_ah(ib_dev, wc->port_num)) |
|
tmp.slid = OPA_TO_IB_UCAST_LID(wc->slid); |
|
else |
|
tmp.slid = ib_lid_cpu16(wc->slid); |
|
tmp.sl = wc->sl; |
|
tmp.dlid_path_bits = wc->dlid_path_bits; |
|
tmp.port_num = wc->port_num; |
|
tmp.reserved = 0; |
|
|
|
if (copy_to_user(dest, &tmp, sizeof tmp)) |
|
return -EFAULT; |
|
|
|
return 0; |
|
} |
|
|
|
static int ib_uverbs_poll_cq(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_poll_cq cmd; |
|
struct ib_uverbs_poll_cq_resp resp; |
|
u8 __user *header_ptr; |
|
u8 __user *data_ptr; |
|
struct ib_cq *cq; |
|
struct ib_wc wc; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
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 = attrs->ucore.outbuf; |
|
data_ptr = header_ptr + sizeof resp; |
|
|
|
memset(&resp, 0, sizeof resp); |
|
while (resp.count < cmd.ne) { |
|
ret = ib_poll_cq(cq, 1, &wc); |
|
if (ret < 0) |
|
goto out_put; |
|
if (!ret) |
|
break; |
|
|
|
ret = copy_wc_to_user(cq->device, data_ptr, &wc); |
|
if (ret) |
|
goto out_put; |
|
|
|
data_ptr += sizeof(struct ib_uverbs_wc); |
|
++resp.count; |
|
} |
|
|
|
if (copy_to_user(header_ptr, &resp, sizeof resp)) { |
|
ret = -EFAULT; |
|
goto out_put; |
|
} |
|
ret = 0; |
|
|
|
if (uverbs_attr_is_valid(attrs, UVERBS_ATTR_CORE_OUT)) |
|
ret = uverbs_output_written(attrs, UVERBS_ATTR_CORE_OUT); |
|
|
|
out_put: |
|
rdma_lookup_put_uobject(&cq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
return ret; |
|
} |
|
|
|
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; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs); |
|
if (!cq) |
|
return -EINVAL; |
|
|
|
ib_req_notify_cq(cq, cmd.solicited_only ? |
|
IB_CQ_SOLICITED : IB_CQ_NEXT_COMP); |
|
|
|
rdma_lookup_put_uobject(&cq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
return 0; |
|
} |
|
|
|
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; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
uobj = uobj_get_destroy(UVERBS_OBJECT_CQ, cmd.cq_handle, attrs); |
|
if (IS_ERR(uobj)) |
|
return PTR_ERR(uobj); |
|
|
|
obj = container_of(uobj, struct ib_ucq_object, uevent.uobject); |
|
memset(&resp, 0, sizeof(resp)); |
|
resp.comp_events_reported = obj->comp_events_reported; |
|
resp.async_events_reported = obj->uevent.events_reported; |
|
|
|
uobj_put_destroy(uobj); |
|
|
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
} |
|
|
|
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; |
|
struct ib_pd *pd = NULL; |
|
struct ib_xrcd *xrcd = NULL; |
|
struct ib_uobject *xrcd_uobj = ERR_PTR(-ENOENT); |
|
struct ib_cq *scq = NULL, *rcq = NULL; |
|
struct ib_srq *srq = NULL; |
|
struct ib_qp *qp; |
|
struct ib_qp_init_attr attr = {}; |
|
struct ib_uverbs_ex_create_qp_resp resp = {}; |
|
int ret; |
|
struct ib_rwq_ind_table *ind_tbl = NULL; |
|
bool has_sq = true; |
|
struct ib_device *ib_dev; |
|
|
|
switch (cmd->qp_type) { |
|
case IB_QPT_RAW_PACKET: |
|
if (!capable(CAP_NET_RAW)) |
|
return -EPERM; |
|
break; |
|
case IB_QPT_RC: |
|
case IB_QPT_UC: |
|
case IB_QPT_UD: |
|
case IB_QPT_XRC_INI: |
|
case IB_QPT_XRC_TGT: |
|
case IB_QPT_DRIVER: |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, attrs, |
|
&ib_dev); |
|
if (IS_ERR(obj)) |
|
return PTR_ERR(obj); |
|
obj->uxrcd = NULL; |
|
obj->uevent.uobject.user_handle = cmd->user_handle; |
|
mutex_init(&obj->mcast_lock); |
|
|
|
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, attrs); |
|
if (!ind_tbl) { |
|
ret = -EINVAL; |
|
goto err_put; |
|
} |
|
|
|
attr.rwq_ind_tbl = ind_tbl; |
|
} |
|
|
|
if (ind_tbl && (cmd->max_recv_wr || cmd->max_recv_sge || cmd->is_srq)) { |
|
ret = -EINVAL; |
|
goto err_put; |
|
} |
|
|
|
if (ind_tbl && !cmd->max_send_wr) |
|
has_sq = false; |
|
|
|
if (cmd->qp_type == IB_QPT_XRC_TGT) { |
|
xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd->pd_handle, |
|
attrs); |
|
|
|
if (IS_ERR(xrcd_uobj)) { |
|
ret = -EINVAL; |
|
goto err_put; |
|
} |
|
|
|
xrcd = (struct ib_xrcd *)xrcd_uobj->object; |
|
if (!xrcd) { |
|
ret = -EINVAL; |
|
goto err_put; |
|
} |
|
device = xrcd->device; |
|
} else { |
|
if (cmd->qp_type == IB_QPT_XRC_INI) { |
|
cmd->max_recv_wr = 0; |
|
cmd->max_recv_sge = 0; |
|
} else { |
|
if (cmd->is_srq) { |
|
srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, |
|
cmd->srq_handle, attrs); |
|
if (!srq || srq->srq_type == IB_SRQT_XRC) { |
|
ret = -EINVAL; |
|
goto err_put; |
|
} |
|
} |
|
|
|
if (!ind_tbl) { |
|
if (cmd->recv_cq_handle != cmd->send_cq_handle) { |
|
rcq = uobj_get_obj_read( |
|
cq, UVERBS_OBJECT_CQ, |
|
cmd->recv_cq_handle, attrs); |
|
if (!rcq) { |
|
ret = -EINVAL; |
|
goto err_put; |
|
} |
|
} |
|
} |
|
} |
|
|
|
if (has_sq) |
|
scq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, |
|
cmd->send_cq_handle, attrs); |
|
if (!ind_tbl && cmd->qp_type != IB_QPT_XRC_INI) |
|
rcq = rcq ?: scq; |
|
pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd->pd_handle, |
|
attrs); |
|
if (!pd || (!scq && has_sq)) { |
|
ret = -EINVAL; |
|
goto err_put; |
|
} |
|
|
|
device = pd->device; |
|
} |
|
|
|
attr.event_handler = ib_uverbs_qp_event_handler; |
|
attr.send_cq = scq; |
|
attr.recv_cq = rcq; |
|
attr.srq = srq; |
|
attr.xrcd = xrcd; |
|
attr.sq_sig_type = cmd->sq_sig_all ? IB_SIGNAL_ALL_WR : |
|
IB_SIGNAL_REQ_WR; |
|
attr.qp_type = cmd->qp_type; |
|
attr.create_flags = 0; |
|
|
|
attr.cap.max_send_wr = cmd->max_send_wr; |
|
attr.cap.max_recv_wr = cmd->max_recv_wr; |
|
attr.cap.max_send_sge = cmd->max_send_sge; |
|
attr.cap.max_recv_sge = cmd->max_recv_sge; |
|
attr.cap.max_inline_data = cmd->max_inline_data; |
|
|
|
INIT_LIST_HEAD(&obj->uevent.event_list); |
|
INIT_LIST_HEAD(&obj->mcast_list); |
|
|
|
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 | |
|
IB_QP_CREATE_MANAGED_RECV | |
|
IB_QP_CREATE_SCATTER_FCS | |
|
IB_QP_CREATE_CVLAN_STRIPPING | |
|
IB_QP_CREATE_SOURCE_QPN | |
|
IB_QP_CREATE_PCI_WRITE_END_PADDING)) { |
|
ret = -EINVAL; |
|
goto err_put; |
|
} |
|
|
|
if (attr.create_flags & IB_QP_CREATE_SOURCE_QPN) { |
|
if (!capable(CAP_NET_RAW)) { |
|
ret = -EPERM; |
|
goto err_put; |
|
} |
|
|
|
attr.source_qpn = cmd->source_qpn; |
|
} |
|
|
|
qp = ib_create_qp_user(device, pd, &attr, &attrs->driver_udata, obj, |
|
KBUILD_MODNAME); |
|
if (IS_ERR(qp)) { |
|
ret = PTR_ERR(qp); |
|
goto err_put; |
|
} |
|
ib_qp_usecnt_inc(qp); |
|
|
|
obj->uevent.uobject.object = qp; |
|
obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file); |
|
if (obj->uevent.event_file) |
|
uverbs_uobject_get(&obj->uevent.event_file->uobj); |
|
|
|
if (xrcd) { |
|
obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, |
|
uobject); |
|
atomic_inc(&obj->uxrcd->refcnt); |
|
uobj_put_read(xrcd_uobj); |
|
} |
|
|
|
if (pd) |
|
uobj_put_obj_read(pd); |
|
if (scq) |
|
rdma_lookup_put_uobject(&scq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
if (rcq && rcq != scq) |
|
rdma_lookup_put_uobject(&rcq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
if (srq) |
|
rdma_lookup_put_uobject(&srq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
if (ind_tbl) |
|
uobj_put_obj_read(ind_tbl); |
|
uobj_finalize_uobj_create(&obj->uevent.uobject, attrs); |
|
|
|
resp.base.qpn = qp->qp_num; |
|
resp.base.qp_handle = obj->uevent.uobject.id; |
|
resp.base.max_recv_sge = attr.cap.max_recv_sge; |
|
resp.base.max_send_sge = attr.cap.max_send_sge; |
|
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)); |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
err_put: |
|
if (!IS_ERR(xrcd_uobj)) |
|
uobj_put_read(xrcd_uobj); |
|
if (pd) |
|
uobj_put_obj_read(pd); |
|
if (scq) |
|
rdma_lookup_put_uobject(&scq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
if (rcq && rcq != scq) |
|
rdma_lookup_put_uobject(&rcq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
if (srq) |
|
rdma_lookup_put_uobject(&srq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
if (ind_tbl) |
|
uobj_put_obj_read(ind_tbl); |
|
|
|
uobj_alloc_abort(&obj->uevent.uobject, attrs); |
|
return ret; |
|
} |
|
|
|
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; |
|
int ret; |
|
|
|
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; |
|
cmd_ex.pd_handle = cmd.pd_handle; |
|
cmd_ex.send_cq_handle = cmd.send_cq_handle; |
|
cmd_ex.recv_cq_handle = cmd.recv_cq_handle; |
|
cmd_ex.srq_handle = cmd.srq_handle; |
|
cmd_ex.max_send_wr = cmd.max_send_wr; |
|
cmd_ex.max_recv_wr = cmd.max_recv_wr; |
|
cmd_ex.max_send_sge = cmd.max_send_sge; |
|
cmd_ex.max_recv_sge = cmd.max_recv_sge; |
|
cmd_ex.max_inline_data = cmd.max_inline_data; |
|
cmd_ex.sq_sig_all = cmd.sq_sig_all; |
|
cmd_ex.qp_type = cmd.qp_type; |
|
cmd_ex.is_srq = cmd.is_srq; |
|
|
|
return create_qp(attrs, &cmd_ex); |
|
} |
|
|
|
static int ib_uverbs_ex_create_qp(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_ex_create_qp cmd; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
if (cmd.comp_mask & ~IB_UVERBS_CREATE_QP_SUP_COMP_MASK) |
|
return -EINVAL; |
|
|
|
if (cmd.reserved) |
|
return -EINVAL; |
|
|
|
return create_qp(attrs, &cmd); |
|
} |
|
|
|
static int ib_uverbs_open_qp(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_create_qp_resp resp = {}; |
|
struct ib_uverbs_open_qp cmd; |
|
struct ib_uqp_object *obj; |
|
struct ib_xrcd *xrcd; |
|
struct ib_qp *qp; |
|
struct ib_qp_open_attr attr = {}; |
|
int ret; |
|
struct ib_uobject *xrcd_uobj; |
|
struct ib_device *ib_dev; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
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, attrs); |
|
if (IS_ERR(xrcd_uobj)) { |
|
ret = -EINVAL; |
|
goto err_put; |
|
} |
|
|
|
xrcd = (struct ib_xrcd *)xrcd_uobj->object; |
|
if (!xrcd) { |
|
ret = -EINVAL; |
|
goto err_xrcd; |
|
} |
|
|
|
attr.event_handler = ib_uverbs_qp_event_handler; |
|
attr.qp_num = cmd.qpn; |
|
attr.qp_type = cmd.qp_type; |
|
|
|
INIT_LIST_HEAD(&obj->uevent.event_list); |
|
INIT_LIST_HEAD(&obj->mcast_list); |
|
|
|
qp = ib_open_qp(xrcd, &attr); |
|
if (IS_ERR(qp)) { |
|
ret = PTR_ERR(qp); |
|
goto err_xrcd; |
|
} |
|
|
|
obj->uevent.uobject.object = qp; |
|
obj->uevent.uobject.user_handle = cmd.user_handle; |
|
|
|
obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject); |
|
atomic_inc(&obj->uxrcd->refcnt); |
|
qp->uobject = obj; |
|
uobj_put_read(xrcd_uobj); |
|
uobj_finalize_uobj_create(&obj->uevent.uobject, attrs); |
|
|
|
resp.qpn = qp->qp_num; |
|
resp.qp_handle = obj->uevent.uobject.id; |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
err_xrcd: |
|
uobj_put_read(xrcd_uobj); |
|
err_put: |
|
uobj_alloc_abort(&obj->uevent.uobject, attrs); |
|
return ret; |
|
} |
|
|
|
static void copy_ah_attr_to_uverbs(struct ib_uverbs_qp_dest *uverb_attr, |
|
struct rdma_ah_attr *rdma_attr) |
|
{ |
|
const struct ib_global_route *grh; |
|
|
|
uverb_attr->dlid = rdma_ah_get_dlid(rdma_attr); |
|
uverb_attr->sl = rdma_ah_get_sl(rdma_attr); |
|
uverb_attr->src_path_bits = rdma_ah_get_path_bits(rdma_attr); |
|
uverb_attr->static_rate = rdma_ah_get_static_rate(rdma_attr); |
|
uverb_attr->is_global = !!(rdma_ah_get_ah_flags(rdma_attr) & |
|
IB_AH_GRH); |
|
if (uverb_attr->is_global) { |
|
grh = rdma_ah_read_grh(rdma_attr); |
|
memcpy(uverb_attr->dgid, grh->dgid.raw, 16); |
|
uverb_attr->flow_label = grh->flow_label; |
|
uverb_attr->sgid_index = grh->sgid_index; |
|
uverb_attr->hop_limit = grh->hop_limit; |
|
uverb_attr->traffic_class = grh->traffic_class; |
|
} |
|
uverb_attr->port_num = rdma_ah_get_port_num(rdma_attr); |
|
} |
|
|
|
static int ib_uverbs_query_qp(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_query_qp cmd; |
|
struct ib_uverbs_query_qp_resp resp; |
|
struct ib_qp *qp; |
|
struct ib_qp_attr *attr; |
|
struct ib_qp_init_attr *init_attr; |
|
int ret; |
|
|
|
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); |
|
if (!attr || !init_attr) { |
|
ret = -ENOMEM; |
|
goto out; |
|
} |
|
|
|
qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs); |
|
if (!qp) { |
|
ret = -EINVAL; |
|
goto out; |
|
} |
|
|
|
ret = ib_query_qp(qp, attr, cmd.attr_mask, init_attr); |
|
|
|
rdma_lookup_put_uobject(&qp->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
|
|
if (ret) |
|
goto out; |
|
|
|
memset(&resp, 0, sizeof resp); |
|
|
|
resp.qp_state = attr->qp_state; |
|
resp.cur_qp_state = attr->cur_qp_state; |
|
resp.path_mtu = attr->path_mtu; |
|
resp.path_mig_state = attr->path_mig_state; |
|
resp.qkey = attr->qkey; |
|
resp.rq_psn = attr->rq_psn; |
|
resp.sq_psn = attr->sq_psn; |
|
resp.dest_qp_num = attr->dest_qp_num; |
|
resp.qp_access_flags = attr->qp_access_flags; |
|
resp.pkey_index = attr->pkey_index; |
|
resp.alt_pkey_index = attr->alt_pkey_index; |
|
resp.sq_draining = attr->sq_draining; |
|
resp.max_rd_atomic = attr->max_rd_atomic; |
|
resp.max_dest_rd_atomic = attr->max_dest_rd_atomic; |
|
resp.min_rnr_timer = attr->min_rnr_timer; |
|
resp.port_num = attr->port_num; |
|
resp.timeout = attr->timeout; |
|
resp.retry_cnt = attr->retry_cnt; |
|
resp.rnr_retry = attr->rnr_retry; |
|
resp.alt_port_num = attr->alt_port_num; |
|
resp.alt_timeout = attr->alt_timeout; |
|
|
|
copy_ah_attr_to_uverbs(&resp.dest, &attr->ah_attr); |
|
copy_ah_attr_to_uverbs(&resp.alt_dest, &attr->alt_ah_attr); |
|
|
|
resp.max_send_wr = init_attr->cap.max_send_wr; |
|
resp.max_recv_wr = init_attr->cap.max_recv_wr; |
|
resp.max_send_sge = init_attr->cap.max_send_sge; |
|
resp.max_recv_sge = init_attr->cap.max_recv_sge; |
|
resp.max_inline_data = init_attr->cap.max_inline_data; |
|
resp.sq_sig_all = init_attr->sq_sig_type == IB_SIGNAL_ALL_WR; |
|
|
|
ret = uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
out: |
|
kfree(attr); |
|
kfree(init_attr); |
|
|
|
return ret; |
|
} |
|
|
|
/* Remove ignored fields set in the attribute mask */ |
|
static int modify_qp_mask(enum ib_qp_type qp_type, int mask) |
|
{ |
|
switch (qp_type) { |
|
case IB_QPT_XRC_INI: |
|
return mask & ~(IB_QP_MAX_DEST_RD_ATOMIC | IB_QP_MIN_RNR_TIMER); |
|
case IB_QPT_XRC_TGT: |
|
return mask & ~(IB_QP_MAX_QP_RD_ATOMIC | IB_QP_RETRY_CNT | |
|
IB_QP_RNR_RETRY); |
|
default: |
|
return 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) |
|
{ |
|
rdma_attr->type = rdma_ah_find_type(dev, uverb_attr->port_num); |
|
if (uverb_attr->is_global) { |
|
rdma_ah_set_grh(rdma_attr, NULL, |
|
uverb_attr->flow_label, |
|
uverb_attr->sgid_index, |
|
uverb_attr->hop_limit, |
|
uverb_attr->traffic_class); |
|
rdma_ah_set_dgid_raw(rdma_attr, uverb_attr->dgid); |
|
} else { |
|
rdma_ah_set_ah_flags(rdma_attr, 0); |
|
} |
|
rdma_ah_set_dlid(rdma_attr, uverb_attr->dlid); |
|
rdma_ah_set_sl(rdma_attr, uverb_attr->sl); |
|
rdma_ah_set_path_bits(rdma_attr, uverb_attr->src_path_bits); |
|
rdma_ah_set_static_rate(rdma_attr, uverb_attr->static_rate); |
|
rdma_ah_set_port_num(rdma_attr, uverb_attr->port_num); |
|
rdma_ah_set_make_grd(rdma_attr, false); |
|
} |
|
|
|
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; |
|
int ret; |
|
|
|
attr = kzalloc(sizeof(*attr), GFP_KERNEL); |
|
if (!attr) |
|
return -ENOMEM; |
|
|
|
qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd->base.qp_handle, |
|
attrs); |
|
if (!qp) { |
|
ret = -EINVAL; |
|
goto out; |
|
} |
|
|
|
if ((cmd->base.attr_mask & IB_QP_PORT) && |
|
!rdma_is_port_valid(qp->device, cmd->base.port_num)) { |
|
ret = -EINVAL; |
|
goto release_qp; |
|
} |
|
|
|
if ((cmd->base.attr_mask & IB_QP_AV)) { |
|
if (!rdma_is_port_valid(qp->device, cmd->base.dest.port_num)) { |
|
ret = -EINVAL; |
|
goto release_qp; |
|
} |
|
|
|
if (cmd->base.attr_mask & IB_QP_STATE && |
|
cmd->base.qp_state == IB_QPS_RTR) { |
|
/* We are in INIT->RTR TRANSITION (if we are not, |
|
* this transition will be rejected in subsequent checks). |
|
* In the INIT->RTR transition, we cannot have IB_QP_PORT set, |
|
* but the IB_QP_STATE flag is required. |
|
* |
|
* Since kernel 3.14 (commit dbf727de7440), the uverbs driver, |
|
* when IB_QP_AV is set, has required inclusion of a valid |
|
* port number in the primary AV. (AVs are created and handled |
|
* differently for infiniband and ethernet (RoCE) ports). |
|
* |
|
* Check the port number included in the primary AV against |
|
* the port number in the qp struct, which was set (and saved) |
|
* in the RST->INIT transition. |
|
*/ |
|
if (cmd->base.dest.port_num != qp->real_qp->port) { |
|
ret = -EINVAL; |
|
goto release_qp; |
|
} |
|
} else { |
|
/* We are in SQD->SQD. (If we are not, this transition will |
|
* be rejected later in the verbs layer checks). |
|
* Check for both IB_QP_PORT and IB_QP_AV, these can be set |
|
* together in the SQD->SQD transition. |
|
* |
|
* If only IP_QP_AV was set, add in IB_QP_PORT as well (the |
|
* verbs layer driver does not track primary port changes |
|
* resulting from path migration. Thus, in SQD, if the primary |
|
* AV is modified, the primary port should also be modified). |
|
* |
|
* Note that in this transition, the IB_QP_STATE flag |
|
* is not allowed. |
|
*/ |
|
if (((cmd->base.attr_mask & (IB_QP_AV | IB_QP_PORT)) |
|
== (IB_QP_AV | IB_QP_PORT)) && |
|
cmd->base.port_num != cmd->base.dest.port_num) { |
|
ret = -EINVAL; |
|
goto release_qp; |
|
} |
|
if ((cmd->base.attr_mask & (IB_QP_AV | IB_QP_PORT)) |
|
== IB_QP_AV) { |
|
cmd->base.attr_mask |= IB_QP_PORT; |
|
cmd->base.port_num = cmd->base.dest.port_num; |
|
} |
|
} |
|
} |
|
|
|
if ((cmd->base.attr_mask & IB_QP_ALT_PATH) && |
|
(!rdma_is_port_valid(qp->device, cmd->base.alt_port_num) || |
|
!rdma_is_port_valid(qp->device, cmd->base.alt_dest.port_num) || |
|
cmd->base.alt_port_num != cmd->base.alt_dest.port_num)) { |
|
ret = -EINVAL; |
|
goto release_qp; |
|
} |
|
|
|
if ((cmd->base.attr_mask & IB_QP_CUR_STATE && |
|
cmd->base.cur_qp_state > IB_QPS_ERR) || |
|
(cmd->base.attr_mask & IB_QP_STATE && |
|
cmd->base.qp_state > IB_QPS_ERR)) { |
|
ret = -EINVAL; |
|
goto release_qp; |
|
} |
|
|
|
if (cmd->base.attr_mask & IB_QP_STATE) |
|
attr->qp_state = cmd->base.qp_state; |
|
if (cmd->base.attr_mask & IB_QP_CUR_STATE) |
|
attr->cur_qp_state = cmd->base.cur_qp_state; |
|
if (cmd->base.attr_mask & IB_QP_PATH_MTU) |
|
attr->path_mtu = cmd->base.path_mtu; |
|
if (cmd->base.attr_mask & IB_QP_PATH_MIG_STATE) |
|
attr->path_mig_state = cmd->base.path_mig_state; |
|
if (cmd->base.attr_mask & IB_QP_QKEY) |
|
attr->qkey = cmd->base.qkey; |
|
if (cmd->base.attr_mask & IB_QP_RQ_PSN) |
|
attr->rq_psn = cmd->base.rq_psn; |
|
if (cmd->base.attr_mask & IB_QP_SQ_PSN) |
|
attr->sq_psn = cmd->base.sq_psn; |
|
if (cmd->base.attr_mask & IB_QP_DEST_QPN) |
|
attr->dest_qp_num = cmd->base.dest_qp_num; |
|
if (cmd->base.attr_mask & IB_QP_ACCESS_FLAGS) |
|
attr->qp_access_flags = cmd->base.qp_access_flags; |
|
if (cmd->base.attr_mask & IB_QP_PKEY_INDEX) |
|
attr->pkey_index = cmd->base.pkey_index; |
|
if (cmd->base.attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY) |
|
attr->en_sqd_async_notify = cmd->base.en_sqd_async_notify; |
|
if (cmd->base.attr_mask & IB_QP_MAX_QP_RD_ATOMIC) |
|
attr->max_rd_atomic = cmd->base.max_rd_atomic; |
|
if (cmd->base.attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) |
|
attr->max_dest_rd_atomic = cmd->base.max_dest_rd_atomic; |
|
if (cmd->base.attr_mask & IB_QP_MIN_RNR_TIMER) |
|
attr->min_rnr_timer = cmd->base.min_rnr_timer; |
|
if (cmd->base.attr_mask & IB_QP_PORT) |
|
attr->port_num = cmd->base.port_num; |
|
if (cmd->base.attr_mask & IB_QP_TIMEOUT) |
|
attr->timeout = cmd->base.timeout; |
|
if (cmd->base.attr_mask & IB_QP_RETRY_CNT) |
|
attr->retry_cnt = cmd->base.retry_cnt; |
|
if (cmd->base.attr_mask & IB_QP_RNR_RETRY) |
|
attr->rnr_retry = cmd->base.rnr_retry; |
|
if (cmd->base.attr_mask & IB_QP_ALT_PATH) { |
|
attr->alt_port_num = cmd->base.alt_port_num; |
|
attr->alt_timeout = cmd->base.alt_timeout; |
|
attr->alt_pkey_index = cmd->base.alt_pkey_index; |
|
} |
|
if (cmd->base.attr_mask & IB_QP_RATE_LIMIT) |
|
attr->rate_limit = cmd->rate_limit; |
|
|
|
if (cmd->base.attr_mask & IB_QP_AV) |
|
copy_ah_attr_from_uverbs(qp->device, &attr->ah_attr, |
|
&cmd->base.dest); |
|
|
|
if (cmd->base.attr_mask & IB_QP_ALT_PATH) |
|
copy_ah_attr_from_uverbs(qp->device, &attr->alt_ah_attr, |
|
&cmd->base.alt_dest); |
|
|
|
ret = ib_modify_qp_with_udata(qp, attr, |
|
modify_qp_mask(qp->qp_type, |
|
cmd->base.attr_mask), |
|
&attrs->driver_udata); |
|
|
|
release_qp: |
|
rdma_lookup_put_uobject(&qp->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
out: |
|
kfree(attr); |
|
|
|
return ret; |
|
} |
|
|
|
static int ib_uverbs_modify_qp(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_ex_modify_qp cmd; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd.base, sizeof(cmd.base)); |
|
if (ret) |
|
return ret; |
|
|
|
if (cmd.base.attr_mask & ~IB_QP_ATTR_STANDARD_BITS) |
|
return -EOPNOTSUPP; |
|
|
|
return modify_qp(attrs, &cmd); |
|
} |
|
|
|
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_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. |
|
*/ |
|
if (cmd.base.attr_mask & ~(IB_QP_ATTR_STANDARD_BITS | IB_QP_RATE_LIMIT)) |
|
return -EOPNOTSUPP; |
|
|
|
ret = modify_qp(attrs, &cmd); |
|
if (ret) |
|
return ret; |
|
|
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
} |
|
|
|
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; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
uobj = uobj_get_destroy(UVERBS_OBJECT_QP, cmd.qp_handle, attrs); |
|
if (IS_ERR(uobj)) |
|
return PTR_ERR(uobj); |
|
|
|
obj = container_of(uobj, struct ib_uqp_object, uevent.uobject); |
|
memset(&resp, 0, sizeof(resp)); |
|
resp.events_reported = obj->uevent.events_reported; |
|
|
|
uobj_put_destroy(uobj); |
|
|
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
} |
|
|
|
static void *alloc_wr(size_t wr_size, __u32 num_sge) |
|
{ |
|
if (num_sge >= (U32_MAX - ALIGN(wr_size, sizeof(struct ib_sge))) / |
|
sizeof(struct ib_sge)) |
|
return NULL; |
|
|
|
return kmalloc(ALIGN(wr_size, sizeof(struct ib_sge)) + |
|
num_sge * sizeof(struct ib_sge), |
|
GFP_KERNEL); |
|
} |
|
|
|
static int ib_uverbs_post_send(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_post_send cmd; |
|
struct ib_uverbs_post_send_resp resp; |
|
struct ib_uverbs_send_wr *user_wr; |
|
struct ib_send_wr *wr = NULL, *last, *next; |
|
const struct ib_send_wr *bad_wr; |
|
struct ib_qp *qp; |
|
int i, sg_ind; |
|
int is_ud; |
|
int ret, ret2; |
|
size_t next_size; |
|
const struct ib_sge __user *sgls; |
|
const void __user *wqes; |
|
struct uverbs_req_iter iter; |
|
|
|
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, attrs); |
|
if (!qp) { |
|
ret = -EINVAL; |
|
goto out; |
|
} |
|
|
|
is_ud = qp->qp_type == IB_QPT_UD; |
|
sg_ind = 0; |
|
last = NULL; |
|
for (i = 0; i < cmd.wr_count; ++i) { |
|
if (copy_from_user(user_wr, wqes + i * cmd.wqe_size, |
|
cmd.wqe_size)) { |
|
ret = -EFAULT; |
|
goto out_put; |
|
} |
|
|
|
if (user_wr->num_sge + sg_ind > cmd.sge_count) { |
|
ret = -EINVAL; |
|
goto out_put; |
|
} |
|
|
|
if (is_ud) { |
|
struct ib_ud_wr *ud; |
|
|
|
if (user_wr->opcode != IB_WR_SEND && |
|
user_wr->opcode != IB_WR_SEND_WITH_IMM) { |
|
ret = -EINVAL; |
|
goto out_put; |
|
} |
|
|
|
next_size = sizeof(*ud); |
|
ud = alloc_wr(next_size, user_wr->num_sge); |
|
if (!ud) { |
|
ret = -ENOMEM; |
|
goto out_put; |
|
} |
|
|
|
ud->ah = uobj_get_obj_read(ah, UVERBS_OBJECT_AH, |
|
user_wr->wr.ud.ah, attrs); |
|
if (!ud->ah) { |
|
kfree(ud); |
|
ret = -EINVAL; |
|
goto out_put; |
|
} |
|
ud->remote_qpn = user_wr->wr.ud.remote_qpn; |
|
ud->remote_qkey = user_wr->wr.ud.remote_qkey; |
|
|
|
next = &ud->wr; |
|
} else if (user_wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM || |
|
user_wr->opcode == IB_WR_RDMA_WRITE || |
|
user_wr->opcode == IB_WR_RDMA_READ) { |
|
struct ib_rdma_wr *rdma; |
|
|
|
next_size = sizeof(*rdma); |
|
rdma = alloc_wr(next_size, user_wr->num_sge); |
|
if (!rdma) { |
|
ret = -ENOMEM; |
|
goto out_put; |
|
} |
|
|
|
rdma->remote_addr = user_wr->wr.rdma.remote_addr; |
|
rdma->rkey = user_wr->wr.rdma.rkey; |
|
|
|
next = &rdma->wr; |
|
} else if (user_wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP || |
|
user_wr->opcode == IB_WR_ATOMIC_FETCH_AND_ADD) { |
|
struct ib_atomic_wr *atomic; |
|
|
|
next_size = sizeof(*atomic); |
|
atomic = alloc_wr(next_size, user_wr->num_sge); |
|
if (!atomic) { |
|
ret = -ENOMEM; |
|
goto out_put; |
|
} |
|
|
|
atomic->remote_addr = user_wr->wr.atomic.remote_addr; |
|
atomic->compare_add = user_wr->wr.atomic.compare_add; |
|
atomic->swap = user_wr->wr.atomic.swap; |
|
atomic->rkey = user_wr->wr.atomic.rkey; |
|
|
|
next = &atomic->wr; |
|
} else if (user_wr->opcode == IB_WR_SEND || |
|
user_wr->opcode == IB_WR_SEND_WITH_IMM || |
|
user_wr->opcode == IB_WR_SEND_WITH_INV) { |
|
next_size = sizeof(*next); |
|
next = alloc_wr(next_size, user_wr->num_sge); |
|
if (!next) { |
|
ret = -ENOMEM; |
|
goto out_put; |
|
} |
|
} else { |
|
ret = -EINVAL; |
|
goto out_put; |
|
} |
|
|
|
if (user_wr->opcode == IB_WR_SEND_WITH_IMM || |
|
user_wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) { |
|
next->ex.imm_data = |
|
(__be32 __force) user_wr->ex.imm_data; |
|
} else if (user_wr->opcode == IB_WR_SEND_WITH_INV) { |
|
next->ex.invalidate_rkey = user_wr->ex.invalidate_rkey; |
|
} |
|
|
|
if (!last) |
|
wr = next; |
|
else |
|
last->next = next; |
|
last = next; |
|
|
|
next->next = NULL; |
|
next->wr_id = user_wr->wr_id; |
|
next->num_sge = user_wr->num_sge; |
|
next->opcode = user_wr->opcode; |
|
next->send_flags = user_wr->send_flags; |
|
|
|
if (next->num_sge) { |
|
next->sg_list = (void *) next + |
|
ALIGN(next_size, 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; |
|
} |
|
sg_ind += next->num_sge; |
|
} else |
|
next->sg_list = NULL; |
|
} |
|
|
|
resp.bad_wr = 0; |
|
ret = qp->device->ops.post_send(qp->real_qp, wr, &bad_wr); |
|
if (ret) |
|
for (next = wr; next; next = next->next) { |
|
++resp.bad_wr; |
|
if (next == bad_wr) |
|
break; |
|
} |
|
|
|
ret2 = uverbs_response(attrs, &resp, sizeof(resp)); |
|
if (ret2) |
|
ret = ret2; |
|
|
|
out_put: |
|
rdma_lookup_put_uobject(&qp->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
|
|
while (wr) { |
|
if (is_ud && ud_wr(wr)->ah) |
|
uobj_put_obj_read(ud_wr(wr)->ah); |
|
next = wr->next; |
|
kfree(wr); |
|
wr = next; |
|
} |
|
|
|
out: |
|
kfree(user_wr); |
|
|
|
return ret; |
|
} |
|
|
|
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; |
|
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); |
|
|
|
sg_ind = 0; |
|
last = NULL; |
|
for (i = 0; i < wr_count; ++i) { |
|
if (copy_from_user(user_wr, wqes + i * wqe_size, |
|
wqe_size)) { |
|
ret = -EFAULT; |
|
goto err; |
|
} |
|
|
|
if (user_wr->num_sge + sg_ind > sge_count) { |
|
ret = -EINVAL; |
|
goto err; |
|
} |
|
|
|
if (user_wr->num_sge >= |
|
(U32_MAX - ALIGN(sizeof(*next), sizeof(struct ib_sge))) / |
|
sizeof(struct ib_sge)) { |
|
ret = -EINVAL; |
|
goto err; |
|
} |
|
|
|
next = kmalloc(ALIGN(sizeof(*next), sizeof(struct ib_sge)) + |
|
user_wr->num_sge * sizeof(struct ib_sge), |
|
GFP_KERNEL); |
|
if (!next) { |
|
ret = -ENOMEM; |
|
goto err; |
|
} |
|
|
|
if (!last) |
|
wr = next; |
|
else |
|
last->next = next; |
|
last = next; |
|
|
|
next->next = NULL; |
|
next->wr_id = user_wr->wr_id; |
|
next->num_sge = user_wr->num_sge; |
|
|
|
if (next->num_sge) { |
|
next->sg_list = (void *)next + |
|
ALIGN(sizeof(*next), 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; |
|
} |
|
sg_ind += next->num_sge; |
|
} else |
|
next->sg_list = NULL; |
|
} |
|
|
|
kfree(user_wr); |
|
return wr; |
|
|
|
err: |
|
kfree(user_wr); |
|
|
|
while (wr) { |
|
next = wr->next; |
|
kfree(wr); |
|
wr = next; |
|
} |
|
|
|
return ERR_PTR(ret); |
|
} |
|
|
|
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; |
|
int ret, ret2; |
|
struct uverbs_req_iter iter; |
|
|
|
ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
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, attrs); |
|
if (!qp) { |
|
ret = -EINVAL; |
|
goto out; |
|
} |
|
|
|
resp.bad_wr = 0; |
|
ret = qp->device->ops.post_recv(qp->real_qp, wr, &bad_wr); |
|
|
|
rdma_lookup_put_uobject(&qp->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
if (ret) { |
|
for (next = wr; next; next = next->next) { |
|
++resp.bad_wr; |
|
if (next == bad_wr) |
|
break; |
|
} |
|
} |
|
|
|
ret2 = uverbs_response(attrs, &resp, sizeof(resp)); |
|
if (ret2) |
|
ret = ret2; |
|
out: |
|
while (wr) { |
|
next = wr->next; |
|
kfree(wr); |
|
wr = next; |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
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; |
|
int ret, ret2; |
|
struct uverbs_req_iter iter; |
|
|
|
ret = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
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, attrs); |
|
if (!srq) { |
|
ret = -EINVAL; |
|
goto out; |
|
} |
|
|
|
resp.bad_wr = 0; |
|
ret = srq->device->ops.post_srq_recv(srq, wr, &bad_wr); |
|
|
|
rdma_lookup_put_uobject(&srq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
|
|
if (ret) |
|
for (next = wr; next; next = next->next) { |
|
++resp.bad_wr; |
|
if (next == bad_wr) |
|
break; |
|
} |
|
|
|
ret2 = uverbs_response(attrs, &resp, sizeof(resp)); |
|
if (ret2) |
|
ret = ret2; |
|
|
|
out: |
|
while (wr) { |
|
next = wr->next; |
|
kfree(wr); |
|
wr = next; |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static int ib_uverbs_create_ah(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_create_ah cmd; |
|
struct ib_uverbs_create_ah_resp resp; |
|
struct ib_uobject *uobj; |
|
struct ib_pd *pd; |
|
struct ib_ah *ah; |
|
struct rdma_ah_attr attr = {}; |
|
int ret; |
|
struct ib_device *ib_dev; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
uobj = uobj_alloc(UVERBS_OBJECT_AH, attrs, &ib_dev); |
|
if (IS_ERR(uobj)) |
|
return PTR_ERR(uobj); |
|
|
|
if (!rdma_is_port_valid(ib_dev, cmd.attr.port_num)) { |
|
ret = -EINVAL; |
|
goto err; |
|
} |
|
|
|
pd = uobj_get_obj_read(pd, UVERBS_OBJECT_PD, cmd.pd_handle, attrs); |
|
if (!pd) { |
|
ret = -EINVAL; |
|
goto err; |
|
} |
|
|
|
attr.type = rdma_ah_find_type(ib_dev, cmd.attr.port_num); |
|
rdma_ah_set_make_grd(&attr, false); |
|
rdma_ah_set_dlid(&attr, cmd.attr.dlid); |
|
rdma_ah_set_sl(&attr, cmd.attr.sl); |
|
rdma_ah_set_path_bits(&attr, cmd.attr.src_path_bits); |
|
rdma_ah_set_static_rate(&attr, cmd.attr.static_rate); |
|
rdma_ah_set_port_num(&attr, cmd.attr.port_num); |
|
|
|
if (cmd.attr.is_global) { |
|
rdma_ah_set_grh(&attr, NULL, cmd.attr.grh.flow_label, |
|
cmd.attr.grh.sgid_index, |
|
cmd.attr.grh.hop_limit, |
|
cmd.attr.grh.traffic_class); |
|
rdma_ah_set_dgid_raw(&attr, cmd.attr.grh.dgid); |
|
} else { |
|
rdma_ah_set_ah_flags(&attr, 0); |
|
} |
|
|
|
ah = rdma_create_user_ah(pd, &attr, &attrs->driver_udata); |
|
if (IS_ERR(ah)) { |
|
ret = PTR_ERR(ah); |
|
goto err_put; |
|
} |
|
|
|
ah->uobject = uobj; |
|
uobj->user_handle = cmd.user_handle; |
|
uobj->object = ah; |
|
uobj_put_obj_read(pd); |
|
uobj_finalize_uobj_create(uobj, attrs); |
|
|
|
resp.ah_handle = uobj->id; |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
err_put: |
|
uobj_put_obj_read(pd); |
|
err: |
|
uobj_alloc_abort(uobj, attrs); |
|
return ret; |
|
} |
|
|
|
static int ib_uverbs_destroy_ah(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_destroy_ah cmd; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
return uobj_perform_destroy(UVERBS_OBJECT_AH, cmd.ah_handle, attrs); |
|
} |
|
|
|
static int ib_uverbs_attach_mcast(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_attach_mcast cmd; |
|
struct ib_qp *qp; |
|
struct ib_uqp_object *obj; |
|
struct ib_uverbs_mcast_entry *mcast; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs); |
|
if (!qp) |
|
return -EINVAL; |
|
|
|
obj = qp->uobject; |
|
|
|
mutex_lock(&obj->mcast_lock); |
|
list_for_each_entry(mcast, &obj->mcast_list, list) |
|
if (cmd.mlid == mcast->lid && |
|
!memcmp(cmd.gid, mcast->gid.raw, sizeof mcast->gid.raw)) { |
|
ret = 0; |
|
goto out_put; |
|
} |
|
|
|
mcast = kmalloc(sizeof *mcast, GFP_KERNEL); |
|
if (!mcast) { |
|
ret = -ENOMEM; |
|
goto out_put; |
|
} |
|
|
|
mcast->lid = cmd.mlid; |
|
memcpy(mcast->gid.raw, cmd.gid, sizeof mcast->gid.raw); |
|
|
|
ret = ib_attach_mcast(qp, &mcast->gid, cmd.mlid); |
|
if (!ret) |
|
list_add_tail(&mcast->list, &obj->mcast_list); |
|
else |
|
kfree(mcast); |
|
|
|
out_put: |
|
mutex_unlock(&obj->mcast_lock); |
|
rdma_lookup_put_uobject(&qp->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
|
|
return ret; |
|
} |
|
|
|
static int ib_uverbs_detach_mcast(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_detach_mcast cmd; |
|
struct ib_uqp_object *obj; |
|
struct ib_qp *qp; |
|
struct ib_uverbs_mcast_entry *mcast; |
|
int ret; |
|
bool found = false; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs); |
|
if (!qp) |
|
return -EINVAL; |
|
|
|
obj = qp->uobject; |
|
mutex_lock(&obj->mcast_lock); |
|
|
|
list_for_each_entry(mcast, &obj->mcast_list, list) |
|
if (cmd.mlid == mcast->lid && |
|
!memcmp(cmd.gid, mcast->gid.raw, sizeof mcast->gid.raw)) { |
|
list_del(&mcast->list); |
|
kfree(mcast); |
|
found = true; |
|
break; |
|
} |
|
|
|
if (!found) { |
|
ret = -EINVAL; |
|
goto out_put; |
|
} |
|
|
|
ret = ib_detach_mcast(qp, (union ib_gid *)cmd.gid, cmd.mlid); |
|
|
|
out_put: |
|
mutex_unlock(&obj->mcast_lock); |
|
rdma_lookup_put_uobject(&qp->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
return ret; |
|
} |
|
|
|
struct ib_uflow_resources *flow_resources_alloc(size_t num_specs) |
|
{ |
|
struct ib_uflow_resources *resources; |
|
|
|
resources = kzalloc(sizeof(*resources), GFP_KERNEL); |
|
|
|
if (!resources) |
|
return NULL; |
|
|
|
if (!num_specs) |
|
goto out; |
|
|
|
resources->counters = |
|
kcalloc(num_specs, sizeof(*resources->counters), GFP_KERNEL); |
|
resources->collection = |
|
kcalloc(num_specs, sizeof(*resources->collection), GFP_KERNEL); |
|
|
|
if (!resources->counters || !resources->collection) |
|
goto err; |
|
|
|
out: |
|
resources->max = num_specs; |
|
return resources; |
|
|
|
err: |
|
kfree(resources->counters); |
|
kfree(resources); |
|
|
|
return NULL; |
|
} |
|
EXPORT_SYMBOL(flow_resources_alloc); |
|
|
|
void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res) |
|
{ |
|
unsigned int i; |
|
|
|
if (!uflow_res) |
|
return; |
|
|
|
for (i = 0; i < uflow_res->collection_num; i++) |
|
atomic_dec(&uflow_res->collection[i]->usecnt); |
|
|
|
for (i = 0; i < uflow_res->counters_num; i++) |
|
atomic_dec(&uflow_res->counters[i]->usecnt); |
|
|
|
kfree(uflow_res->collection); |
|
kfree(uflow_res->counters); |
|
kfree(uflow_res); |
|
} |
|
EXPORT_SYMBOL(ib_uverbs_flow_resources_free); |
|
|
|
void flow_resources_add(struct ib_uflow_resources *uflow_res, |
|
enum ib_flow_spec_type type, |
|
void *ibobj) |
|
{ |
|
WARN_ON(uflow_res->num >= uflow_res->max); |
|
|
|
switch (type) { |
|
case IB_FLOW_SPEC_ACTION_HANDLE: |
|
atomic_inc(&((struct ib_flow_action *)ibobj)->usecnt); |
|
uflow_res->collection[uflow_res->collection_num++] = |
|
(struct ib_flow_action *)ibobj; |
|
break; |
|
case IB_FLOW_SPEC_ACTION_COUNT: |
|
atomic_inc(&((struct ib_counters *)ibobj)->usecnt); |
|
uflow_res->counters[uflow_res->counters_num++] = |
|
(struct ib_counters *)ibobj; |
|
break; |
|
default: |
|
WARN_ON(1); |
|
} |
|
|
|
uflow_res->num++; |
|
} |
|
EXPORT_SYMBOL(flow_resources_add); |
|
|
|
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) |
|
{ |
|
ib_spec->type = kern_spec->type; |
|
switch (ib_spec->type) { |
|
case IB_FLOW_SPEC_ACTION_TAG: |
|
if (kern_spec->flow_tag.size != |
|
sizeof(struct ib_uverbs_flow_spec_action_tag)) |
|
return -EINVAL; |
|
|
|
ib_spec->flow_tag.size = sizeof(struct ib_flow_spec_action_tag); |
|
ib_spec->flow_tag.tag_id = kern_spec->flow_tag.tag_id; |
|
break; |
|
case IB_FLOW_SPEC_ACTION_DROP: |
|
if (kern_spec->drop.size != |
|
sizeof(struct ib_uverbs_flow_spec_action_drop)) |
|
return -EINVAL; |
|
|
|
ib_spec->drop.size = sizeof(struct ib_flow_spec_action_drop); |
|
break; |
|
case IB_FLOW_SPEC_ACTION_HANDLE: |
|
if (kern_spec->action.size != |
|
sizeof(struct ib_uverbs_flow_spec_action_handle)) |
|
return -EOPNOTSUPP; |
|
ib_spec->action.act = uobj_get_obj_read(flow_action, |
|
UVERBS_OBJECT_FLOW_ACTION, |
|
kern_spec->action.handle, |
|
attrs); |
|
if (!ib_spec->action.act) |
|
return -EINVAL; |
|
ib_spec->action.size = |
|
sizeof(struct ib_flow_spec_action_handle); |
|
flow_resources_add(uflow_res, |
|
IB_FLOW_SPEC_ACTION_HANDLE, |
|
ib_spec->action.act); |
|
uobj_put_obj_read(ib_spec->action.act); |
|
break; |
|
case IB_FLOW_SPEC_ACTION_COUNT: |
|
if (kern_spec->flow_count.size != |
|
sizeof(struct ib_uverbs_flow_spec_action_count)) |
|
return -EINVAL; |
|
ib_spec->flow_count.counters = |
|
uobj_get_obj_read(counters, |
|
UVERBS_OBJECT_COUNTERS, |
|
kern_spec->flow_count.handle, |
|
attrs); |
|
if (!ib_spec->flow_count.counters) |
|
return -EINVAL; |
|
ib_spec->flow_count.size = |
|
sizeof(struct ib_flow_spec_action_count); |
|
flow_resources_add(uflow_res, |
|
IB_FLOW_SPEC_ACTION_COUNT, |
|
ib_spec->flow_count.counters); |
|
uobj_put_obj_read(ib_spec->flow_count.counters); |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
return 0; |
|
} |
|
|
|
static ssize_t spec_filter_size(const void *kern_spec_filter, u16 kern_filter_size, |
|
u16 ib_real_filter_sz) |
|
{ |
|
/* |
|
* User space filter structures must be 64 bit aligned, otherwise this |
|
* may pass, but we won't handle additional new attributes. |
|
*/ |
|
|
|
if (kern_filter_size > ib_real_filter_sz) { |
|
if (memchr_inv(kern_spec_filter + |
|
ib_real_filter_sz, 0, |
|
kern_filter_size - ib_real_filter_sz)) |
|
return -EINVAL; |
|
return ib_real_filter_sz; |
|
} |
|
return kern_filter_size; |
|
} |
|
|
|
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) |
|
{ |
|
ssize_t actual_filter_sz; |
|
ssize_t ib_filter_sz; |
|
|
|
/* User flow spec size must be aligned to 4 bytes */ |
|
if (kern_filter_sz != ALIGN(kern_filter_sz, 4)) |
|
return -EINVAL; |
|
|
|
ib_spec->type = type; |
|
|
|
if (ib_spec->type == (IB_FLOW_SPEC_INNER | IB_FLOW_SPEC_VXLAN_TUNNEL)) |
|
return -EINVAL; |
|
|
|
switch (ib_spec->type & ~IB_FLOW_SPEC_INNER) { |
|
case IB_FLOW_SPEC_ETH: |
|
ib_filter_sz = offsetof(struct ib_flow_eth_filter, real_sz); |
|
actual_filter_sz = spec_filter_size(kern_spec_mask, |
|
kern_filter_sz, |
|
ib_filter_sz); |
|
if (actual_filter_sz <= 0) |
|
return -EINVAL; |
|
ib_spec->size = sizeof(struct ib_flow_spec_eth); |
|
memcpy(&ib_spec->eth.val, kern_spec_val, actual_filter_sz); |
|
memcpy(&ib_spec->eth.mask, kern_spec_mask, actual_filter_sz); |
|
break; |
|
case IB_FLOW_SPEC_IPV4: |
|
ib_filter_sz = offsetof(struct ib_flow_ipv4_filter, real_sz); |
|
actual_filter_sz = spec_filter_size(kern_spec_mask, |
|
kern_filter_sz, |
|
ib_filter_sz); |
|
if (actual_filter_sz <= 0) |
|
return -EINVAL; |
|
ib_spec->size = sizeof(struct ib_flow_spec_ipv4); |
|
memcpy(&ib_spec->ipv4.val, kern_spec_val, actual_filter_sz); |
|
memcpy(&ib_spec->ipv4.mask, kern_spec_mask, actual_filter_sz); |
|
break; |
|
case IB_FLOW_SPEC_IPV6: |
|
ib_filter_sz = offsetof(struct ib_flow_ipv6_filter, real_sz); |
|
actual_filter_sz = spec_filter_size(kern_spec_mask, |
|
kern_filter_sz, |
|
ib_filter_sz); |
|
if (actual_filter_sz <= 0) |
|
return -EINVAL; |
|
ib_spec->size = sizeof(struct ib_flow_spec_ipv6); |
|
memcpy(&ib_spec->ipv6.val, kern_spec_val, actual_filter_sz); |
|
memcpy(&ib_spec->ipv6.mask, kern_spec_mask, actual_filter_sz); |
|
|
|
if ((ntohl(ib_spec->ipv6.mask.flow_label)) >= BIT(20) || |
|
(ntohl(ib_spec->ipv6.val.flow_label)) >= BIT(20)) |
|
return -EINVAL; |
|
break; |
|
case IB_FLOW_SPEC_TCP: |
|
case IB_FLOW_SPEC_UDP: |
|
ib_filter_sz = offsetof(struct ib_flow_tcp_udp_filter, real_sz); |
|
actual_filter_sz = spec_filter_size(kern_spec_mask, |
|
kern_filter_sz, |
|
ib_filter_sz); |
|
if (actual_filter_sz <= 0) |
|
return -EINVAL; |
|
ib_spec->size = sizeof(struct ib_flow_spec_tcp_udp); |
|
memcpy(&ib_spec->tcp_udp.val, kern_spec_val, actual_filter_sz); |
|
memcpy(&ib_spec->tcp_udp.mask, kern_spec_mask, actual_filter_sz); |
|
break; |
|
case IB_FLOW_SPEC_VXLAN_TUNNEL: |
|
ib_filter_sz = offsetof(struct ib_flow_tunnel_filter, real_sz); |
|
actual_filter_sz = spec_filter_size(kern_spec_mask, |
|
kern_filter_sz, |
|
ib_filter_sz); |
|
if (actual_filter_sz <= 0) |
|
return -EINVAL; |
|
ib_spec->tunnel.size = sizeof(struct ib_flow_spec_tunnel); |
|
memcpy(&ib_spec->tunnel.val, kern_spec_val, actual_filter_sz); |
|
memcpy(&ib_spec->tunnel.mask, kern_spec_mask, actual_filter_sz); |
|
|
|
if ((ntohl(ib_spec->tunnel.mask.tunnel_id)) >= BIT(24) || |
|
(ntohl(ib_spec->tunnel.val.tunnel_id)) >= BIT(24)) |
|
return -EINVAL; |
|
break; |
|
case IB_FLOW_SPEC_ESP: |
|
ib_filter_sz = offsetof(struct ib_flow_esp_filter, real_sz); |
|
actual_filter_sz = spec_filter_size(kern_spec_mask, |
|
kern_filter_sz, |
|
ib_filter_sz); |
|
if (actual_filter_sz <= 0) |
|
return -EINVAL; |
|
ib_spec->esp.size = sizeof(struct ib_flow_spec_esp); |
|
memcpy(&ib_spec->esp.val, kern_spec_val, actual_filter_sz); |
|
memcpy(&ib_spec->esp.mask, kern_spec_mask, actual_filter_sz); |
|
break; |
|
case IB_FLOW_SPEC_GRE: |
|
ib_filter_sz = offsetof(struct ib_flow_gre_filter, real_sz); |
|
actual_filter_sz = spec_filter_size(kern_spec_mask, |
|
kern_filter_sz, |
|
ib_filter_sz); |
|
if (actual_filter_sz <= 0) |
|
return -EINVAL; |
|
ib_spec->gre.size = sizeof(struct ib_flow_spec_gre); |
|
memcpy(&ib_spec->gre.val, kern_spec_val, actual_filter_sz); |
|
memcpy(&ib_spec->gre.mask, kern_spec_mask, actual_filter_sz); |
|
break; |
|
case IB_FLOW_SPEC_MPLS: |
|
ib_filter_sz = offsetof(struct ib_flow_mpls_filter, real_sz); |
|
actual_filter_sz = spec_filter_size(kern_spec_mask, |
|
kern_filter_sz, |
|
ib_filter_sz); |
|
if (actual_filter_sz <= 0) |
|
return -EINVAL; |
|
ib_spec->mpls.size = sizeof(struct ib_flow_spec_mpls); |
|
memcpy(&ib_spec->mpls.val, kern_spec_val, actual_filter_sz); |
|
memcpy(&ib_spec->mpls.mask, kern_spec_mask, actual_filter_sz); |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
return 0; |
|
} |
|
|
|
static int kern_spec_to_ib_spec_filter(struct ib_uverbs_flow_spec *kern_spec, |
|
union ib_flow_spec *ib_spec) |
|
{ |
|
size_t kern_filter_sz; |
|
void *kern_spec_mask; |
|
void *kern_spec_val; |
|
|
|
if (check_sub_overflow((size_t)kern_spec->hdr.size, |
|
sizeof(struct ib_uverbs_flow_spec_hdr), |
|
&kern_filter_sz)) |
|
return -EINVAL; |
|
|
|
kern_filter_sz /= 2; |
|
|
|
kern_spec_val = (void *)kern_spec + |
|
sizeof(struct ib_uverbs_flow_spec_hdr); |
|
kern_spec_mask = kern_spec_val + kern_filter_sz; |
|
|
|
return ib_uverbs_kern_spec_to_ib_spec_filter(kern_spec->type, |
|
kern_spec_mask, |
|
kern_spec_val, |
|
kern_filter_sz, 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) |
|
{ |
|
if (kern_spec->reserved) |
|
return -EINVAL; |
|
|
|
if (kern_spec->type >= IB_FLOW_SPEC_ACTION_TAG) |
|
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); |
|
} |
|
|
|
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_resp resp = {}; |
|
struct ib_uwq_object *obj; |
|
int err = 0; |
|
struct ib_cq *cq; |
|
struct ib_pd *pd; |
|
struct ib_wq *wq; |
|
struct ib_wq_init_attr wq_init_attr = {}; |
|
struct ib_device *ib_dev; |
|
|
|
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, attrs, |
|
&ib_dev); |
|
if (IS_ERR(obj)) |
|
return PTR_ERR(obj); |
|
|
|
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, attrs); |
|
if (!cq) { |
|
err = -EINVAL; |
|
goto err_put_pd; |
|
} |
|
|
|
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_type = cmd.wq_type; |
|
wq_init_attr.event_handler = ib_uverbs_wq_event_handler; |
|
wq_init_attr.create_flags = cmd.create_flags; |
|
INIT_LIST_HEAD(&obj->uevent.event_list); |
|
obj->uevent.uobject.user_handle = cmd.user_handle; |
|
|
|
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; |
|
} |
|
|
|
wq->uobject = obj; |
|
obj->uevent.uobject.object = wq; |
|
wq->wq_type = wq_init_attr.wq_type; |
|
wq->cq = cq; |
|
wq->pd = pd; |
|
wq->device = pd->device; |
|
atomic_set(&wq->usecnt, 0); |
|
atomic_inc(&pd->usecnt); |
|
atomic_inc(&cq->usecnt); |
|
obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file); |
|
if (obj->uevent.event_file) |
|
uverbs_uobject_get(&obj->uevent.event_file->uobj); |
|
|
|
uobj_put_obj_read(pd); |
|
rdma_lookup_put_uobject(&cq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
uobj_finalize_uobj_create(&obj->uevent.uobject, attrs); |
|
|
|
resp.wq_handle = obj->uevent.uobject.id; |
|
resp.max_sge = wq_init_attr.max_sge; |
|
resp.max_wr = wq_init_attr.max_wr; |
|
resp.wqn = wq->wq_num; |
|
resp.response_length = uverbs_response_length(attrs, sizeof(resp)); |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
err_put_cq: |
|
rdma_lookup_put_uobject(&cq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
err_put_pd: |
|
uobj_put_obj_read(pd); |
|
err_uobj: |
|
uobj_alloc_abort(&obj->uevent.uobject, attrs); |
|
|
|
return err; |
|
} |
|
|
|
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_resp resp = {}; |
|
struct ib_uobject *uobj; |
|
struct ib_uwq_object *obj; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
if (cmd.comp_mask) |
|
return -EOPNOTSUPP; |
|
|
|
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); |
|
|
|
obj = container_of(uobj, struct ib_uwq_object, uevent.uobject); |
|
resp.events_reported = obj->uevent.events_reported; |
|
|
|
uobj_put_destroy(uobj); |
|
|
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
} |
|
|
|
static int ib_uverbs_ex_modify_wq(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_ex_modify_wq cmd; |
|
struct ib_wq *wq; |
|
struct ib_wq_attr wq_attr = {}; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
if (!cmd.attr_mask) |
|
return -EINVAL; |
|
|
|
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, attrs); |
|
if (!wq) |
|
return -EINVAL; |
|
|
|
if (cmd.attr_mask & IB_WQ_FLAGS) { |
|
wq_attr.flags = cmd.flags; |
|
wq_attr.flags_mask = cmd.flags_mask; |
|
} |
|
|
|
if (cmd.attr_mask & IB_WQ_CUR_STATE) { |
|
if (cmd.curr_wq_state > IB_WQS_ERR) |
|
return -EINVAL; |
|
|
|
wq_attr.curr_wq_state = cmd.curr_wq_state; |
|
} else { |
|
wq_attr.curr_wq_state = wq->state; |
|
} |
|
|
|
if (cmd.attr_mask & IB_WQ_STATE) { |
|
if (cmd.wq_state > IB_WQS_ERR) |
|
return -EINVAL; |
|
|
|
wq_attr.wq_state = cmd.wq_state; |
|
} else { |
|
wq_attr.wq_state = wq_attr.curr_wq_state; |
|
} |
|
|
|
ret = wq->device->ops.modify_wq(wq, &wq_attr, cmd.attr_mask, |
|
&attrs->driver_udata); |
|
rdma_lookup_put_uobject(&wq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
return ret; |
|
} |
|
|
|
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_resp resp = {}; |
|
struct ib_uobject *uobj; |
|
int err; |
|
struct ib_rwq_ind_table_init_attr init_attr = {}; |
|
struct ib_rwq_ind_table *rwq_ind_tbl; |
|
struct ib_wq **wqs = NULL; |
|
u32 *wqs_handles = NULL; |
|
struct ib_wq *wq = NULL; |
|
int i, num_read_wqs; |
|
u32 num_wq_handles; |
|
struct uverbs_req_iter iter; |
|
struct ib_device *ib_dev; |
|
|
|
err = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd)); |
|
if (err) |
|
return err; |
|
|
|
if (cmd.comp_mask) |
|
return -EOPNOTSUPP; |
|
|
|
if (cmd.log_ind_tbl_size > IB_USER_VERBS_MAX_LOG_IND_TBL_SIZE) |
|
return -EINVAL; |
|
|
|
num_wq_handles = 1 << cmd.log_ind_tbl_size; |
|
wqs_handles = kcalloc(num_wq_handles, sizeof(*wqs_handles), |
|
GFP_KERNEL); |
|
if (!wqs_handles) |
|
return -ENOMEM; |
|
|
|
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; |
|
|
|
wqs = kcalloc(num_wq_handles, sizeof(*wqs), GFP_KERNEL); |
|
if (!wqs) { |
|
err = -ENOMEM; |
|
goto err_free; |
|
} |
|
|
|
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], attrs); |
|
if (!wq) { |
|
err = -EINVAL; |
|
goto put_wqs; |
|
} |
|
|
|
wqs[num_read_wqs] = wq; |
|
atomic_inc(&wqs[num_read_wqs]->usecnt); |
|
} |
|
|
|
uobj = uobj_alloc(UVERBS_OBJECT_RWQ_IND_TBL, attrs, &ib_dev); |
|
if (IS_ERR(uobj)) { |
|
err = PTR_ERR(uobj); |
|
goto put_wqs; |
|
} |
|
|
|
rwq_ind_tbl = rdma_zalloc_drv_obj(ib_dev, ib_rwq_ind_table); |
|
if (!rwq_ind_tbl) { |
|
err = -ENOMEM; |
|
goto err_uobj; |
|
} |
|
|
|
init_attr.log_ind_tbl_size = cmd.log_ind_tbl_size; |
|
init_attr.ind_tbl = wqs; |
|
|
|
rwq_ind_tbl->ind_tbl = wqs; |
|
rwq_ind_tbl->log_ind_tbl_size = init_attr.log_ind_tbl_size; |
|
rwq_ind_tbl->uobject = uobj; |
|
uobj->object = rwq_ind_tbl; |
|
rwq_ind_tbl->device = ib_dev; |
|
atomic_set(&rwq_ind_tbl->usecnt, 0); |
|
|
|
err = ib_dev->ops.create_rwq_ind_table(rwq_ind_tbl, &init_attr, |
|
&attrs->driver_udata); |
|
if (err) |
|
goto err_create; |
|
|
|
for (i = 0; i < num_wq_handles; i++) |
|
rdma_lookup_put_uobject(&wqs[i]->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
kfree(wqs_handles); |
|
uobj_finalize_uobj_create(uobj, attrs); |
|
|
|
resp.ind_tbl_handle = uobj->id; |
|
resp.ind_tbl_num = rwq_ind_tbl->ind_tbl_num; |
|
resp.response_length = uverbs_response_length(attrs, sizeof(resp)); |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
err_create: |
|
kfree(rwq_ind_tbl); |
|
err_uobj: |
|
uobj_alloc_abort(uobj, attrs); |
|
put_wqs: |
|
for (i = 0; i < num_read_wqs; i++) { |
|
rdma_lookup_put_uobject(&wqs[i]->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
atomic_dec(&wqs[i]->usecnt); |
|
} |
|
err_free: |
|
kfree(wqs_handles); |
|
kfree(wqs); |
|
return err; |
|
} |
|
|
|
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; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
if (cmd.comp_mask) |
|
return -EOPNOTSUPP; |
|
|
|
return uobj_perform_destroy(UVERBS_OBJECT_RWQ_IND_TBL, |
|
cmd.ind_tbl_handle, attrs); |
|
} |
|
|
|
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 = {}; |
|
struct ib_uobject *uobj; |
|
struct ib_flow *flow_id; |
|
struct ib_uverbs_flow_attr *kern_flow_attr; |
|
struct ib_flow_attr *flow_attr; |
|
struct ib_qp *qp; |
|
struct ib_uflow_resources *uflow_res; |
|
struct ib_uverbs_flow_spec_hdr *kern_spec; |
|
struct uverbs_req_iter iter; |
|
int err; |
|
void *ib_spec; |
|
int i; |
|
struct ib_device *ib_dev; |
|
|
|
err = uverbs_request_start(attrs, &iter, &cmd, sizeof(cmd)); |
|
if (err) |
|
return err; |
|
|
|
if (cmd.comp_mask) |
|
return -EINVAL; |
|
|
|
if (!capable(CAP_NET_RAW)) |
|
return -EPERM; |
|
|
|
if (cmd.flow_attr.flags >= IB_FLOW_ATTR_FLAGS_RESERVED) |
|
return -EINVAL; |
|
|
|
if ((cmd.flow_attr.flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) && |
|
((cmd.flow_attr.type == IB_FLOW_ATTR_ALL_DEFAULT) || |
|
(cmd.flow_attr.type == IB_FLOW_ATTR_MC_DEFAULT))) |
|
return -EINVAL; |
|
|
|
if (cmd.flow_attr.num_of_specs > IB_FLOW_SPEC_SUPPORT_LAYERS) |
|
return -EINVAL; |
|
|
|
if (cmd.flow_attr.size > |
|
(cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_flow_spec))) |
|
return -EINVAL; |
|
|
|
if (cmd.flow_attr.reserved[0] || |
|
cmd.flow_attr.reserved[1]) |
|
return -EINVAL; |
|
|
|
if (cmd.flow_attr.num_of_specs) { |
|
kern_flow_attr = kmalloc(sizeof(*kern_flow_attr) + cmd.flow_attr.size, |
|
GFP_KERNEL); |
|
if (!kern_flow_attr) |
|
return -ENOMEM; |
|
|
|
*kern_flow_attr = cmd.flow_attr; |
|
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; |
|
} |
|
|
|
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; |
|
} |
|
|
|
if (!rdma_is_port_valid(uobj->context->device, cmd.flow_attr.port)) { |
|
err = -EINVAL; |
|
goto err_uobj; |
|
} |
|
|
|
qp = uobj_get_obj_read(qp, UVERBS_OBJECT_QP, cmd.qp_handle, attrs); |
|
if (!qp) { |
|
err = -EINVAL; |
|
goto err_uobj; |
|
} |
|
|
|
if (qp->qp_type != IB_QPT_UD && qp->qp_type != IB_QPT_RAW_PACKET) { |
|
err = -EINVAL; |
|
goto err_put; |
|
} |
|
|
|
flow_attr = kzalloc(struct_size(flow_attr, flows, |
|
cmd.flow_attr.num_of_specs), GFP_KERNEL); |
|
if (!flow_attr) { |
|
err = -ENOMEM; |
|
goto err_put; |
|
} |
|
uflow_res = flow_resources_alloc(cmd.flow_attr.num_of_specs); |
|
if (!uflow_res) { |
|
err = -ENOMEM; |
|
goto err_free_flow_attr; |
|
} |
|
|
|
flow_attr->type = kern_flow_attr->type; |
|
flow_attr->priority = kern_flow_attr->priority; |
|
flow_attr->num_of_specs = kern_flow_attr->num_of_specs; |
|
flow_attr->port = kern_flow_attr->port; |
|
flow_attr->flags = kern_flow_attr->flags; |
|
flow_attr->size = sizeof(*flow_attr); |
|
|
|
kern_spec = kern_flow_attr->flow_specs; |
|
ib_spec = flow_attr + 1; |
|
for (i = 0; i < flow_attr->num_of_specs && |
|
cmd.flow_attr.size >= sizeof(*kern_spec) && |
|
cmd.flow_attr.size >= kern_spec->size; |
|
i++) { |
|
err = kern_spec_to_ib_spec( |
|
attrs, (struct ib_uverbs_flow_spec *)kern_spec, |
|
ib_spec, uflow_res); |
|
if (err) |
|
goto err_free; |
|
|
|
flow_attr->size += |
|
((union ib_flow_spec *) ib_spec)->size; |
|
cmd.flow_attr.size -= kern_spec->size; |
|
kern_spec = ((void *)kern_spec) + kern_spec->size; |
|
ib_spec += ((union ib_flow_spec *) ib_spec)->size; |
|
} |
|
if (cmd.flow_attr.size || (i != flow_attr->num_of_specs)) { |
|
pr_warn("create flow failed, flow %d: %u bytes left from uverb cmd\n", |
|
i, cmd.flow_attr.size); |
|
err = -EINVAL; |
|
goto err_free; |
|
} |
|
|
|
flow_id = qp->device->ops.create_flow(qp, flow_attr, |
|
&attrs->driver_udata); |
|
|
|
if (IS_ERR(flow_id)) { |
|
err = PTR_ERR(flow_id); |
|
goto err_free; |
|
} |
|
|
|
ib_set_flow(uobj, flow_id, qp, qp->device, uflow_res); |
|
|
|
rdma_lookup_put_uobject(&qp->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
kfree(flow_attr); |
|
|
|
if (cmd.flow_attr.num_of_specs) |
|
kfree(kern_flow_attr); |
|
uobj_finalize_uobj_create(uobj, attrs); |
|
|
|
resp.flow_handle = uobj->id; |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
err_free: |
|
ib_uverbs_flow_resources_free(uflow_res); |
|
err_free_flow_attr: |
|
kfree(flow_attr); |
|
err_put: |
|
rdma_lookup_put_uobject(&qp->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
err_uobj: |
|
uobj_alloc_abort(uobj, attrs); |
|
err_free_attr: |
|
if (cmd.flow_attr.num_of_specs) |
|
kfree(kern_flow_attr); |
|
return err; |
|
} |
|
|
|
static int ib_uverbs_ex_destroy_flow(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_destroy_flow cmd; |
|
int ret; |
|
|
|
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, attrs); |
|
} |
|
|
|
static int __uverbs_create_xsrq(struct uverbs_attr_bundle *attrs, |
|
struct ib_uverbs_create_xsrq *cmd, |
|
struct ib_udata *udata) |
|
{ |
|
struct ib_uverbs_create_srq_resp resp = {}; |
|
struct ib_usrq_object *obj; |
|
struct ib_pd *pd; |
|
struct ib_srq *srq; |
|
struct ib_srq_init_attr attr; |
|
int ret; |
|
struct ib_uobject *xrcd_uobj; |
|
struct ib_device *ib_dev; |
|
|
|
obj = (struct ib_usrq_object *)uobj_alloc(UVERBS_OBJECT_SRQ, attrs, |
|
&ib_dev); |
|
if (IS_ERR(obj)) |
|
return PTR_ERR(obj); |
|
|
|
if (cmd->srq_type == IB_SRQT_TM) |
|
attr.ext.tag_matching.max_num_tags = cmd->max_num_tags; |
|
|
|
if (cmd->srq_type == IB_SRQT_XRC) { |
|
xrcd_uobj = uobj_get_read(UVERBS_OBJECT_XRCD, cmd->xrcd_handle, |
|
attrs); |
|
if (IS_ERR(xrcd_uobj)) { |
|
ret = -EINVAL; |
|
goto err; |
|
} |
|
|
|
attr.ext.xrc.xrcd = (struct ib_xrcd *)xrcd_uobj->object; |
|
if (!attr.ext.xrc.xrcd) { |
|
ret = -EINVAL; |
|
goto err_put_xrcd; |
|
} |
|
|
|
obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject); |
|
atomic_inc(&obj->uxrcd->refcnt); |
|
} |
|
|
|
if (ib_srq_has_cq(cmd->srq_type)) { |
|
attr.ext.cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, |
|
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, attrs); |
|
if (!pd) { |
|
ret = -EINVAL; |
|
goto err_put_cq; |
|
} |
|
|
|
attr.event_handler = ib_uverbs_srq_event_handler; |
|
attr.srq_type = cmd->srq_type; |
|
attr.attr.max_wr = cmd->max_wr; |
|
attr.attr.max_sge = cmd->max_sge; |
|
attr.attr.srq_limit = cmd->srq_limit; |
|
|
|
INIT_LIST_HEAD(&obj->uevent.event_list); |
|
obj->uevent.uobject.user_handle = cmd->user_handle; |
|
|
|
srq = ib_create_srq_user(pd, &attr, obj, udata); |
|
if (IS_ERR(srq)) { |
|
ret = PTR_ERR(srq); |
|
goto err_put_pd; |
|
} |
|
|
|
obj->uevent.uobject.object = srq; |
|
obj->uevent.uobject.user_handle = cmd->user_handle; |
|
obj->uevent.event_file = READ_ONCE(attrs->ufile->default_async_file); |
|
if (obj->uevent.event_file) |
|
uverbs_uobject_get(&obj->uevent.event_file->uobj); |
|
|
|
if (cmd->srq_type == IB_SRQT_XRC) |
|
resp.srqn = srq->ext.xrc.srq_num; |
|
|
|
if (cmd->srq_type == IB_SRQT_XRC) |
|
uobj_put_read(xrcd_uobj); |
|
|
|
if (ib_srq_has_cq(cmd->srq_type)) |
|
rdma_lookup_put_uobject(&attr.ext.cq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
|
|
uobj_put_obj_read(pd); |
|
uobj_finalize_uobj_create(&obj->uevent.uobject, attrs); |
|
|
|
resp.srq_handle = obj->uevent.uobject.id; |
|
resp.max_wr = attr.attr.max_wr; |
|
resp.max_sge = attr.attr.max_sge; |
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
|
|
err_put_pd: |
|
uobj_put_obj_read(pd); |
|
err_put_cq: |
|
if (ib_srq_has_cq(cmd->srq_type)) |
|
rdma_lookup_put_uobject(&attr.ext.cq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
|
|
err_put_xrcd: |
|
if (cmd->srq_type == IB_SRQT_XRC) { |
|
atomic_dec(&obj->uxrcd->refcnt); |
|
uobj_put_read(xrcd_uobj); |
|
} |
|
|
|
err: |
|
uobj_alloc_abort(&obj->uevent.uobject, attrs); |
|
return ret; |
|
} |
|
|
|
static int ib_uverbs_create_srq(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_create_srq cmd; |
|
struct ib_uverbs_create_xsrq xcmd; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
memset(&xcmd, 0, sizeof(xcmd)); |
|
xcmd.response = cmd.response; |
|
xcmd.user_handle = cmd.user_handle; |
|
xcmd.srq_type = IB_SRQT_BASIC; |
|
xcmd.pd_handle = cmd.pd_handle; |
|
xcmd.max_wr = cmd.max_wr; |
|
xcmd.max_sge = cmd.max_sge; |
|
xcmd.srq_limit = cmd.srq_limit; |
|
|
|
return __uverbs_create_xsrq(attrs, &xcmd, &attrs->driver_udata); |
|
} |
|
|
|
static int ib_uverbs_create_xsrq(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_create_xsrq cmd; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
return __uverbs_create_xsrq(attrs, &cmd, &attrs->driver_udata); |
|
} |
|
|
|
static int ib_uverbs_modify_srq(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_modify_srq cmd; |
|
struct ib_srq *srq; |
|
struct ib_srq_attr attr; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
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->ops.modify_srq(srq, &attr, cmd.attr_mask, |
|
&attrs->driver_udata); |
|
|
|
rdma_lookup_put_uobject(&srq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
|
|
return ret; |
|
} |
|
|
|
static int ib_uverbs_query_srq(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_query_srq cmd; |
|
struct ib_uverbs_query_srq_resp resp; |
|
struct ib_srq_attr attr; |
|
struct ib_srq *srq; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
srq = uobj_get_obj_read(srq, UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs); |
|
if (!srq) |
|
return -EINVAL; |
|
|
|
ret = ib_query_srq(srq, &attr); |
|
|
|
rdma_lookup_put_uobject(&srq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
|
|
if (ret) |
|
return ret; |
|
|
|
memset(&resp, 0, sizeof resp); |
|
|
|
resp.max_wr = attr.max_wr; |
|
resp.max_sge = attr.max_sge; |
|
resp.srq_limit = attr.srq_limit; |
|
|
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
} |
|
|
|
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; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
uobj = uobj_get_destroy(UVERBS_OBJECT_SRQ, cmd.srq_handle, attrs); |
|
if (IS_ERR(uobj)) |
|
return PTR_ERR(uobj); |
|
|
|
obj = container_of(uobj, struct ib_uevent_object, uobject); |
|
memset(&resp, 0, sizeof(resp)); |
|
resp.events_reported = obj->events_reported; |
|
|
|
uobj_put_destroy(uobj); |
|
|
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
} |
|
|
|
static int ib_uverbs_ex_query_device(struct uverbs_attr_bundle *attrs) |
|
{ |
|
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(attrs); |
|
if (IS_ERR(ucontext)) |
|
return PTR_ERR(ucontext); |
|
ib_dev = ucontext->device; |
|
|
|
err = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (err) |
|
return err; |
|
|
|
if (cmd.comp_mask) |
|
return -EINVAL; |
|
|
|
if (cmd.reserved) |
|
return -EINVAL; |
|
|
|
err = ib_dev->ops.query_device(ib_dev, &attr, &attrs->driver_udata); |
|
if (err) |
|
return err; |
|
|
|
copy_query_dev_fields(ucontext, &resp.base, &attr); |
|
|
|
resp.odp_caps.general_caps = attr.odp_caps.general_caps; |
|
resp.odp_caps.per_transport_caps.rc_odp_caps = |
|
attr.odp_caps.per_transport_caps.rc_odp_caps; |
|
resp.odp_caps.per_transport_caps.uc_odp_caps = |
|
attr.odp_caps.per_transport_caps.uc_odp_caps; |
|
resp.odp_caps.per_transport_caps.ud_odp_caps = |
|
attr.odp_caps.per_transport_caps.ud_odp_caps; |
|
resp.xrc_odp_caps = attr.odp_caps.per_transport_caps.xrc_odp_caps; |
|
|
|
resp.timestamp_mask = attr.timestamp_mask; |
|
resp.hca_core_clock = attr.hca_core_clock; |
|
resp.device_cap_flags_ex = attr.device_cap_flags; |
|
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.max_wq_type_rq = attr.max_wq_type_rq; |
|
resp.raw_packet_caps = attr.raw_packet_caps; |
|
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.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.max_dm_size = attr.max_dm_size; |
|
resp.response_length = uverbs_response_length(attrs, sizeof(resp)); |
|
|
|
return uverbs_response(attrs, &resp, sizeof(resp)); |
|
} |
|
|
|
static int ib_uverbs_ex_modify_cq(struct uverbs_attr_bundle *attrs) |
|
{ |
|
struct ib_uverbs_ex_modify_cq cmd; |
|
struct ib_cq *cq; |
|
int ret; |
|
|
|
ret = uverbs_request(attrs, &cmd, sizeof(cmd)); |
|
if (ret) |
|
return ret; |
|
|
|
if (!cmd.attr_mask || cmd.reserved) |
|
return -EINVAL; |
|
|
|
if (cmd.attr_mask > IB_CQ_MODERATE) |
|
return -EOPNOTSUPP; |
|
|
|
cq = uobj_get_obj_read(cq, UVERBS_OBJECT_CQ, cmd.cq_handle, attrs); |
|
if (!cq) |
|
return -EINVAL; |
|
|
|
ret = rdma_set_cq_moderation(cq, cmd.attr.cq_count, cmd.attr.cq_period); |
|
|
|
rdma_lookup_put_uobject(&cq->uobject->uevent.uobject, |
|
UVERBS_LOOKUP_READ); |
|
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 UAPI_DEF_WRITE_IO(req, resp) \ |
|
.write.has_resp = 1 + \ |
|
BUILD_BUG_ON_ZERO(offsetof(req, response) != 0) + \ |
|
BUILD_BUG_ON_ZERO(sizeof_field(req, 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 = offsetofend(req, req_last_member), \ |
|
.write.resp_size = offsetofend(resp, resp_last_member) |
|
|
|
#define UAPI_DEF_WRITE_I_EX(req, req_last_member) \ |
|
.write.req_size = offsetofend(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)), |
|
DECLARE_UVERBS_WRITE( |
|
IB_USER_VERBS_CMD_DESTROY_AH, |
|
ib_uverbs_destroy_ah, |
|
UAPI_DEF_WRITE_I(struct ib_uverbs_destroy_ah)), |
|
UAPI_DEF_OBJ_NEEDS_FN(create_user_ah), |
|
UAPI_DEF_OBJ_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(modify_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)), |
|
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_OBJ_NEEDS_FN(alloc_xrcd), |
|
UAPI_DEF_OBJ_NEEDS_FN(dealloc_xrcd)), |
|
|
|
{}, |
|
};
|
|
|