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RDMA/bnxt_re: Move the UAPI methods to a dedicated file

Browse Source 
This is in preparation for upcoming patches in the series.
Driver has to support additional UAPIs for some applications.
Moving current UAPI implementation to a new file, uapi.c.

Link: https://patch.msgid.link/r/20260302110036.36387-2-sriharsha.basavapatna@broadcom.com
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Kalesh AP 2026-03-02 16:30:31 +05:30 committed by Jason Gunthorpe
parent 613713f251
commit eee6268421
4 changed files with 344 additions and 305 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/infiniband/hw/bnxt_re/Makefile
View File

@ -5,4 +5,4 @@ obj-$(CONFIG_INFINIBAND_BNXT_RE) += bnxt_re.o
bnxt_re-y := main.o ib_verbs.o \
qplib_res.o qplib_rcfw.o \
qplib_sp.o qplib_fp.o hw_counters.o \
debugfs.o
debugfs.o uapi.o

305
drivers/infiniband/hw/bnxt_re/ib_verbs.c
View File

@ -642,7 +642,7 @@ static int bnxt_re_create_fence_mr(struct bnxt_re_pd *pd)
return rc;
}
static struct bnxt_re_user_mmap_entry*
struct bnxt_re_user_mmap_entry*
bnxt_re_mmap_entry_insert(struct bnxt_re_ucontext *uctx, u64 mem_offset,
enum bnxt_re_mmap_flag mmap_flag, u64 *offset)
{
@ -4609,32 +4609,6 @@ int bnxt_re_destroy_flow(struct ib_flow *flow_id)
return rc;
}
static struct bnxt_re_cq *bnxt_re_search_for_cq(struct bnxt_re_dev *rdev, u32 cq_id)
{
struct bnxt_re_cq *cq = NULL, *tmp_cq;
hash_for_each_possible(rdev->cq_hash, tmp_cq, hash_entry, cq_id) {
if (tmp_cq->qplib_cq.id == cq_id) {
cq = tmp_cq;
break;
}
}
return cq;
}
static struct bnxt_re_srq *bnxt_re_search_for_srq(struct bnxt_re_dev *rdev, u32 srq_id)
{
struct bnxt_re_srq *srq = NULL, *tmp_srq;
hash_for_each_possible(rdev->srq_hash, tmp_srq, hash_entry, srq_id) {
if (tmp_srq->qplib_srq.id == srq_id) {
srq = tmp_srq;
break;
}
}
return srq;
}
/* Helper function to mmap the virtual memory from user app */
int bnxt_re_mmap(struct ib_ucontext *ib_uctx, struct vm_area_struct *vma)
{
@ -4737,280 +4711,3 @@ int bnxt_re_process_mad(struct ib_device *ibdev, int mad_flags,
ret |= IB_MAD_RESULT_REPLY;
return ret;
}
static int UVERBS_HANDLER(BNXT_RE_METHOD_NOTIFY_DRV)(struct uverbs_attr_bundle *attrs)
{
struct bnxt_re_ucontext *uctx;
uctx = container_of(ib_uverbs_get_ucontext(attrs), struct bnxt_re_ucontext, ib_uctx);
bnxt_re_pacing_alert(uctx->rdev);
return 0;
}
static int UVERBS_HANDLER(BNXT_RE_METHOD_ALLOC_PAGE)(struct uverbs_attr_bundle *attrs)
{
struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs, BNXT_RE_ALLOC_PAGE_HANDLE);
enum bnxt_re_alloc_page_type alloc_type;
struct bnxt_re_user_mmap_entry *entry;
enum bnxt_re_mmap_flag mmap_flag;
struct bnxt_qplib_chip_ctx *cctx;
struct bnxt_re_ucontext *uctx;
struct bnxt_re_dev *rdev;
u64 mmap_offset;
u32 length;
u32 dpi;
u64 addr;
int err;
uctx = container_of(ib_uverbs_get_ucontext(attrs), struct bnxt_re_ucontext, ib_uctx);
if (IS_ERR(uctx))
return PTR_ERR(uctx);
err = uverbs_get_const(&alloc_type, attrs, BNXT_RE_ALLOC_PAGE_TYPE);
if (err)
return err;
rdev = uctx->rdev;
cctx = rdev->chip_ctx;
switch (alloc_type) {
case BNXT_RE_ALLOC_WC_PAGE:
if (cctx->modes.db_push) {
if (bnxt_qplib_alloc_dpi(&rdev->qplib_res, &uctx->wcdpi,
uctx, BNXT_QPLIB_DPI_TYPE_WC))
return -ENOMEM;
length = PAGE_SIZE;
dpi = uctx->wcdpi.dpi;
addr = (u64)uctx->wcdpi.umdbr;
mmap_flag = BNXT_RE_MMAP_WC_DB;
} else {
return -EINVAL;
}
break;
case BNXT_RE_ALLOC_DBR_BAR_PAGE:
length = PAGE_SIZE;
addr = (u64)rdev->pacing.dbr_bar_addr;
mmap_flag = BNXT_RE_MMAP_DBR_BAR;
break;
case BNXT_RE_ALLOC_DBR_PAGE:
length = PAGE_SIZE;
addr = (u64)rdev->pacing.dbr_page;
mmap_flag = BNXT_RE_MMAP_DBR_PAGE;
break;
default:
return -EOPNOTSUPP;
}
entry = bnxt_re_mmap_entry_insert(uctx, addr, mmap_flag, &mmap_offset);
if (!entry)
return -ENOMEM;
uobj->object = entry;
uverbs_finalize_uobj_create(attrs, BNXT_RE_ALLOC_PAGE_HANDLE);
err = uverbs_copy_to(attrs, BNXT_RE_ALLOC_PAGE_MMAP_OFFSET,
&mmap_offset, sizeof(mmap_offset));
if (err)
return err;
err = uverbs_copy_to(attrs, BNXT_RE_ALLOC_PAGE_MMAP_LENGTH,
&length, sizeof(length));
if (err)
return err;
err = uverbs_copy_to(attrs, BNXT_RE_ALLOC_PAGE_DPI,
&dpi, sizeof(dpi));
if (err)
return err;
return 0;
}
static int alloc_page_obj_cleanup(struct ib_uobject *uobject,
enum rdma_remove_reason why,
struct uverbs_attr_bundle *attrs)
{
struct bnxt_re_user_mmap_entry *entry = uobject->object;
struct bnxt_re_ucontext *uctx = entry->uctx;
switch (entry->mmap_flag) {
case BNXT_RE_MMAP_WC_DB:
if (uctx && uctx->wcdpi.dbr) {
struct bnxt_re_dev *rdev = uctx->rdev;
bnxt_qplib_dealloc_dpi(&rdev->qplib_res, &uctx->wcdpi);
uctx->wcdpi.dbr = NULL;
}
break;
case BNXT_RE_MMAP_DBR_BAR:
case BNXT_RE_MMAP_DBR_PAGE:
break;
default:
goto exit;
}
rdma_user_mmap_entry_remove(&entry->rdma_entry);
exit:
return 0;
}
DECLARE_UVERBS_NAMED_METHOD(BNXT_RE_METHOD_ALLOC_PAGE,
UVERBS_ATTR_IDR(BNXT_RE_ALLOC_PAGE_HANDLE,
BNXT_RE_OBJECT_ALLOC_PAGE,
UVERBS_ACCESS_NEW,
UA_MANDATORY),
UVERBS_ATTR_CONST_IN(BNXT_RE_ALLOC_PAGE_TYPE,
enum bnxt_re_alloc_page_type,
UA_MANDATORY),
UVERBS_ATTR_PTR_OUT(BNXT_RE_ALLOC_PAGE_MMAP_OFFSET,
UVERBS_ATTR_TYPE(u64),
UA_MANDATORY),
UVERBS_ATTR_PTR_OUT(BNXT_RE_ALLOC_PAGE_MMAP_LENGTH,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY),
UVERBS_ATTR_PTR_OUT(BNXT_RE_ALLOC_PAGE_DPI,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY));
DECLARE_UVERBS_NAMED_METHOD_DESTROY(BNXT_RE_METHOD_DESTROY_PAGE,
UVERBS_ATTR_IDR(BNXT_RE_DESTROY_PAGE_HANDLE,
BNXT_RE_OBJECT_ALLOC_PAGE,
UVERBS_ACCESS_DESTROY,
UA_MANDATORY));
DECLARE_UVERBS_NAMED_OBJECT(BNXT_RE_OBJECT_ALLOC_PAGE,
UVERBS_TYPE_ALLOC_IDR(alloc_page_obj_cleanup),
&UVERBS_METHOD(BNXT_RE_METHOD_ALLOC_PAGE),
&UVERBS_METHOD(BNXT_RE_METHOD_DESTROY_PAGE));
DECLARE_UVERBS_NAMED_METHOD(BNXT_RE_METHOD_NOTIFY_DRV);
DECLARE_UVERBS_GLOBAL_METHODS(BNXT_RE_OBJECT_NOTIFY_DRV,
&UVERBS_METHOD(BNXT_RE_METHOD_NOTIFY_DRV));
/* Toggle MEM */
static int UVERBS_HANDLER(BNXT_RE_METHOD_GET_TOGGLE_MEM)(struct uverbs_attr_bundle *attrs)
{
struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs, BNXT_RE_TOGGLE_MEM_HANDLE);
enum bnxt_re_mmap_flag mmap_flag = BNXT_RE_MMAP_TOGGLE_PAGE;
enum bnxt_re_get_toggle_mem_type res_type;
struct bnxt_re_user_mmap_entry *entry;
struct bnxt_re_ucontext *uctx;
struct ib_ucontext *ib_uctx;
struct bnxt_re_dev *rdev;
struct bnxt_re_srq *srq;
u32 length = PAGE_SIZE;
struct bnxt_re_cq *cq;
u64 mem_offset;
u32 offset = 0;
u64 addr = 0;
u32 res_id;
int err;
ib_uctx = ib_uverbs_get_ucontext(attrs);
if (IS_ERR(ib_uctx))
return PTR_ERR(ib_uctx);
err = uverbs_get_const(&res_type, attrs, BNXT_RE_TOGGLE_MEM_TYPE);
if (err)
return err;
uctx = container_of(ib_uctx, struct bnxt_re_ucontext, ib_uctx);
rdev = uctx->rdev;
err = uverbs_copy_from(&res_id, attrs, BNXT_RE_TOGGLE_MEM_RES_ID);
if (err)
return err;
switch (res_type) {
case BNXT_RE_CQ_TOGGLE_MEM:
cq = bnxt_re_search_for_cq(rdev, res_id);
if (!cq)
return -EINVAL;
addr = (u64)cq->uctx_cq_page;
break;
case BNXT_RE_SRQ_TOGGLE_MEM:
srq = bnxt_re_search_for_srq(rdev, res_id);
if (!srq)
return -EINVAL;
addr = (u64)srq->uctx_srq_page;
break;
default:
return -EOPNOTSUPP;
}
entry = bnxt_re_mmap_entry_insert(uctx, addr, mmap_flag, &mem_offset);
if (!entry)
return -ENOMEM;
uobj->object = entry;
uverbs_finalize_uobj_create(attrs, BNXT_RE_TOGGLE_MEM_HANDLE);
err = uverbs_copy_to(attrs, BNXT_RE_TOGGLE_MEM_MMAP_PAGE,
&mem_offset, sizeof(mem_offset));
if (err)
return err;
err = uverbs_copy_to(attrs, BNXT_RE_TOGGLE_MEM_MMAP_LENGTH,
&length, sizeof(length));
if (err)
return err;
err = uverbs_copy_to(attrs, BNXT_RE_TOGGLE_MEM_MMAP_OFFSET,
&offset, sizeof(offset));
if (err)
return err;
return 0;
}
static int get_toggle_mem_obj_cleanup(struct ib_uobject *uobject,
enum rdma_remove_reason why,
struct uverbs_attr_bundle *attrs)
{
struct bnxt_re_user_mmap_entry *entry = uobject->object;
rdma_user_mmap_entry_remove(&entry->rdma_entry);
return 0;
}
DECLARE_UVERBS_NAMED_METHOD(BNXT_RE_METHOD_GET_TOGGLE_MEM,
UVERBS_ATTR_IDR(BNXT_RE_TOGGLE_MEM_HANDLE,
BNXT_RE_OBJECT_GET_TOGGLE_MEM,
UVERBS_ACCESS_NEW,
UA_MANDATORY),
UVERBS_ATTR_CONST_IN(BNXT_RE_TOGGLE_MEM_TYPE,
enum bnxt_re_get_toggle_mem_type,
UA_MANDATORY),
UVERBS_ATTR_PTR_IN(BNXT_RE_TOGGLE_MEM_RES_ID,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY),
UVERBS_ATTR_PTR_OUT(BNXT_RE_TOGGLE_MEM_MMAP_PAGE,
UVERBS_ATTR_TYPE(u64),
UA_MANDATORY),
UVERBS_ATTR_PTR_OUT(BNXT_RE_TOGGLE_MEM_MMAP_OFFSET,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY),
UVERBS_ATTR_PTR_OUT(BNXT_RE_TOGGLE_MEM_MMAP_LENGTH,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY));
DECLARE_UVERBS_NAMED_METHOD_DESTROY(BNXT_RE_METHOD_RELEASE_TOGGLE_MEM,
UVERBS_ATTR_IDR(BNXT_RE_RELEASE_TOGGLE_MEM_HANDLE,
BNXT_RE_OBJECT_GET_TOGGLE_MEM,
UVERBS_ACCESS_DESTROY,
UA_MANDATORY));
DECLARE_UVERBS_NAMED_OBJECT(BNXT_RE_OBJECT_GET_TOGGLE_MEM,
UVERBS_TYPE_ALLOC_IDR(get_toggle_mem_obj_cleanup),
&UVERBS_METHOD(BNXT_RE_METHOD_GET_TOGGLE_MEM),
&UVERBS_METHOD(BNXT_RE_METHOD_RELEASE_TOGGLE_MEM));
const struct uapi_definition bnxt_re_uapi_defs[] = {
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(BNXT_RE_OBJECT_ALLOC_PAGE),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(BNXT_RE_OBJECT_NOTIFY_DRV),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(BNXT_RE_OBJECT_GET_TOGGLE_MEM),
{}
};

3
drivers/infiniband/hw/bnxt_re/ib_verbs.h
View File

@ -293,4 +293,7 @@ static inline u32 __to_ib_port_num(u16 port_id)
unsigned long bnxt_re_lock_cqs(struct bnxt_re_qp *qp);
void bnxt_re_unlock_cqs(struct bnxt_re_qp *qp, unsigned long flags);
struct bnxt_re_user_mmap_entry*
bnxt_re_mmap_entry_insert(struct bnxt_re_ucontext *uctx, u64 mem_offset,
enum bnxt_re_mmap_flag mmap_flag, u64 *offset);
#endif /* __BNXT_RE_IB_VERBS_H__ */

339
drivers/infiniband/hw/bnxt_re/uapi.c Normal file
View File

@ -0,0 +1,339 @@
// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
/*
* Copyright (c) 2025, Broadcom. All rights reserved. The term
* Broadcom refers to Broadcom Limited and/or its subsidiaries.
*
* Description: uapi interpreter
*/
#include <rdma/ib_addr.h>
#include <rdma/uverbs_types.h>
#include <rdma/uverbs_std_types.h>
#include <rdma/ib_user_ioctl_cmds.h>
#define UVERBS_MODULE_NAME bnxt_re
#include <rdma/uverbs_named_ioctl.h>
#include <rdma/bnxt_re-abi.h>
#include "roce_hsi.h"
#include "qplib_res.h"
#include "qplib_sp.h"
#include "qplib_fp.h"
#include "qplib_rcfw.h"
#include "bnxt_re.h"
#include "ib_verbs.h"
static struct bnxt_re_cq *bnxt_re_search_for_cq(struct bnxt_re_dev *rdev, u32 cq_id)
{
struct bnxt_re_cq *cq = NULL, *tmp_cq;
hash_for_each_possible(rdev->cq_hash, tmp_cq, hash_entry, cq_id) {
if (tmp_cq->qplib_cq.id == cq_id) {
cq = tmp_cq;
break;
}
}
return cq;
}
static struct bnxt_re_srq *bnxt_re_search_for_srq(struct bnxt_re_dev *rdev, u32 srq_id)
{
struct bnxt_re_srq *srq = NULL, *tmp_srq;
hash_for_each_possible(rdev->srq_hash, tmp_srq, hash_entry, srq_id) {
if (tmp_srq->qplib_srq.id == srq_id) {
srq = tmp_srq;
break;
}
}
return srq;
}
static int UVERBS_HANDLER(BNXT_RE_METHOD_NOTIFY_DRV)(struct uverbs_attr_bundle *attrs)
{
struct bnxt_re_ucontext *uctx;
struct ib_ucontext *ib_uctx;
ib_uctx = ib_uverbs_get_ucontext(attrs);
if (IS_ERR(ib_uctx))
return PTR_ERR(ib_uctx);
uctx = container_of(ib_uctx, struct bnxt_re_ucontext, ib_uctx);
if (IS_ERR(uctx))
return PTR_ERR(uctx);
bnxt_re_pacing_alert(uctx->rdev);
return 0;
}
static int UVERBS_HANDLER(BNXT_RE_METHOD_ALLOC_PAGE)(struct uverbs_attr_bundle *attrs)
{
struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs, BNXT_RE_ALLOC_PAGE_HANDLE);
enum bnxt_re_alloc_page_type alloc_type;
struct bnxt_re_user_mmap_entry *entry;
enum bnxt_re_mmap_flag mmap_flag;
struct bnxt_qplib_chip_ctx *cctx;
struct bnxt_re_ucontext *uctx;
struct ib_ucontext *ib_uctx;
struct bnxt_re_dev *rdev;
u64 mmap_offset;
u32 length;
u32 dpi;
u64 addr;
int err;
ib_uctx = ib_uverbs_get_ucontext(attrs);
if (IS_ERR(ib_uctx))
return PTR_ERR(ib_uctx);
uctx = container_of(ib_uctx, struct bnxt_re_ucontext, ib_uctx);
if (IS_ERR(uctx))
return PTR_ERR(uctx);
err = uverbs_get_const(&alloc_type, attrs, BNXT_RE_ALLOC_PAGE_TYPE);
if (err)
return err;
rdev = uctx->rdev;
cctx = rdev->chip_ctx;
switch (alloc_type) {
case BNXT_RE_ALLOC_WC_PAGE:
if (cctx->modes.db_push) {
if (bnxt_qplib_alloc_dpi(&rdev->qplib_res, &uctx->wcdpi,
uctx, BNXT_QPLIB_DPI_TYPE_WC))
return -ENOMEM;
length = PAGE_SIZE;
dpi = uctx->wcdpi.dpi;
addr = (u64)uctx->wcdpi.umdbr;
mmap_flag = BNXT_RE_MMAP_WC_DB;
} else {
return -EINVAL;
}
break;
case BNXT_RE_ALLOC_DBR_BAR_PAGE:
length = PAGE_SIZE;
addr = (u64)rdev->pacing.dbr_bar_addr;
mmap_flag = BNXT_RE_MMAP_DBR_BAR;
break;
case BNXT_RE_ALLOC_DBR_PAGE:
length = PAGE_SIZE;
addr = (u64)rdev->pacing.dbr_page;
mmap_flag = BNXT_RE_MMAP_DBR_PAGE;
break;
default:
return -EOPNOTSUPP;
}
entry = bnxt_re_mmap_entry_insert(uctx, addr, mmap_flag, &mmap_offset);
if (!entry)
return -ENOMEM;
uobj->object = entry;
uverbs_finalize_uobj_create(attrs, BNXT_RE_ALLOC_PAGE_HANDLE);
err = uverbs_copy_to(attrs, BNXT_RE_ALLOC_PAGE_MMAP_OFFSET,
&mmap_offset, sizeof(mmap_offset));
if (err)
return err;
err = uverbs_copy_to(attrs, BNXT_RE_ALLOC_PAGE_MMAP_LENGTH,
&length, sizeof(length));
if (err)
return err;
err = uverbs_copy_to(attrs, BNXT_RE_ALLOC_PAGE_DPI,
&dpi, sizeof(dpi));
if (err)
return err;
return 0;
}
static int alloc_page_obj_cleanup(struct ib_uobject *uobject,
enum rdma_remove_reason why,
struct uverbs_attr_bundle *attrs)
{
struct bnxt_re_user_mmap_entry *entry = uobject->object;
struct bnxt_re_ucontext *uctx = entry->uctx;
switch (entry->mmap_flag) {
case BNXT_RE_MMAP_WC_DB:
if (uctx && uctx->wcdpi.dbr) {
struct bnxt_re_dev *rdev = uctx->rdev;
bnxt_qplib_dealloc_dpi(&rdev->qplib_res, &uctx->wcdpi);
uctx->wcdpi.dbr = NULL;
}
break;
case BNXT_RE_MMAP_DBR_BAR:
case BNXT_RE_MMAP_DBR_PAGE:
break;
default:
goto exit;
}
rdma_user_mmap_entry_remove(&entry->rdma_entry);
exit:
return 0;
}
DECLARE_UVERBS_NAMED_METHOD(BNXT_RE_METHOD_ALLOC_PAGE,
UVERBS_ATTR_IDR(BNXT_RE_ALLOC_PAGE_HANDLE,
BNXT_RE_OBJECT_ALLOC_PAGE,
UVERBS_ACCESS_NEW,
UA_MANDATORY),
UVERBS_ATTR_CONST_IN(BNXT_RE_ALLOC_PAGE_TYPE,
enum bnxt_re_alloc_page_type,
UA_MANDATORY),
UVERBS_ATTR_PTR_OUT(BNXT_RE_ALLOC_PAGE_MMAP_OFFSET,
UVERBS_ATTR_TYPE(u64),
UA_MANDATORY),
UVERBS_ATTR_PTR_OUT(BNXT_RE_ALLOC_PAGE_MMAP_LENGTH,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY),
UVERBS_ATTR_PTR_OUT(BNXT_RE_ALLOC_PAGE_DPI,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY));
DECLARE_UVERBS_NAMED_METHOD_DESTROY(BNXT_RE_METHOD_DESTROY_PAGE,
UVERBS_ATTR_IDR(BNXT_RE_DESTROY_PAGE_HANDLE,
BNXT_RE_OBJECT_ALLOC_PAGE,
UVERBS_ACCESS_DESTROY,
UA_MANDATORY));
DECLARE_UVERBS_NAMED_OBJECT(BNXT_RE_OBJECT_ALLOC_PAGE,
UVERBS_TYPE_ALLOC_IDR(alloc_page_obj_cleanup),
&UVERBS_METHOD(BNXT_RE_METHOD_ALLOC_PAGE),
&UVERBS_METHOD(BNXT_RE_METHOD_DESTROY_PAGE));
DECLARE_UVERBS_NAMED_METHOD(BNXT_RE_METHOD_NOTIFY_DRV);
DECLARE_UVERBS_GLOBAL_METHODS(BNXT_RE_OBJECT_NOTIFY_DRV,
&UVERBS_METHOD(BNXT_RE_METHOD_NOTIFY_DRV));
/* Toggle MEM */
static int UVERBS_HANDLER(BNXT_RE_METHOD_GET_TOGGLE_MEM)(struct uverbs_attr_bundle *attrs)
{
struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs, BNXT_RE_TOGGLE_MEM_HANDLE);
enum bnxt_re_mmap_flag mmap_flag = BNXT_RE_MMAP_TOGGLE_PAGE;
enum bnxt_re_get_toggle_mem_type res_type;
struct bnxt_re_user_mmap_entry *entry;
struct bnxt_re_ucontext *uctx;
struct ib_ucontext *ib_uctx;
struct bnxt_re_dev *rdev;
struct bnxt_re_srq *srq;
u32 length = PAGE_SIZE;
struct bnxt_re_cq *cq;
u64 mem_offset;
u32 offset = 0;
u64 addr = 0;
u32 res_id;
int err;
ib_uctx = ib_uverbs_get_ucontext(attrs);
if (IS_ERR(ib_uctx))
return PTR_ERR(ib_uctx);
err = uverbs_get_const(&res_type, attrs, BNXT_RE_TOGGLE_MEM_TYPE);
if (err)
return err;
uctx = container_of(ib_uctx, struct bnxt_re_ucontext, ib_uctx);
rdev = uctx->rdev;
err = uverbs_copy_from(&res_id, attrs, BNXT_RE_TOGGLE_MEM_RES_ID);
if (err)
return err;
switch (res_type) {
case BNXT_RE_CQ_TOGGLE_MEM:
cq = bnxt_re_search_for_cq(rdev, res_id);
if (!cq)
return -EINVAL;
addr = (u64)cq->uctx_cq_page;
break;
case BNXT_RE_SRQ_TOGGLE_MEM:
srq = bnxt_re_search_for_srq(rdev, res_id);
if (!srq)
return -EINVAL;
addr = (u64)srq->uctx_srq_page;
break;
default:
return -EOPNOTSUPP;
}
entry = bnxt_re_mmap_entry_insert(uctx, addr, mmap_flag, &mem_offset);
if (!entry)
return -ENOMEM;
uobj->object = entry;
uverbs_finalize_uobj_create(attrs, BNXT_RE_TOGGLE_MEM_HANDLE);
err = uverbs_copy_to(attrs, BNXT_RE_TOGGLE_MEM_MMAP_PAGE,
&mem_offset, sizeof(mem_offset));
if (err)
return err;
err = uverbs_copy_to(attrs, BNXT_RE_TOGGLE_MEM_MMAP_LENGTH,
&length, sizeof(length));
if (err)
return err;
err = uverbs_copy_to(attrs, BNXT_RE_TOGGLE_MEM_MMAP_OFFSET,
&offset, sizeof(offset));
if (err)
return err;
return 0;
}
static int get_toggle_mem_obj_cleanup(struct ib_uobject *uobject,
enum rdma_remove_reason why,
struct uverbs_attr_bundle *attrs)
{
struct bnxt_re_user_mmap_entry *entry = uobject->object;
rdma_user_mmap_entry_remove(&entry->rdma_entry);
return 0;
}
DECLARE_UVERBS_NAMED_METHOD(BNXT_RE_METHOD_GET_TOGGLE_MEM,
UVERBS_ATTR_IDR(BNXT_RE_TOGGLE_MEM_HANDLE,
BNXT_RE_OBJECT_GET_TOGGLE_MEM,
UVERBS_ACCESS_NEW,
UA_MANDATORY),
UVERBS_ATTR_CONST_IN(BNXT_RE_TOGGLE_MEM_TYPE,
enum bnxt_re_get_toggle_mem_type,
UA_MANDATORY),
UVERBS_ATTR_PTR_IN(BNXT_RE_TOGGLE_MEM_RES_ID,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY),
UVERBS_ATTR_PTR_OUT(BNXT_RE_TOGGLE_MEM_MMAP_PAGE,
UVERBS_ATTR_TYPE(u64),
UA_MANDATORY),
UVERBS_ATTR_PTR_OUT(BNXT_RE_TOGGLE_MEM_MMAP_OFFSET,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY),
UVERBS_ATTR_PTR_OUT(BNXT_RE_TOGGLE_MEM_MMAP_LENGTH,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY));
DECLARE_UVERBS_NAMED_METHOD_DESTROY(BNXT_RE_METHOD_RELEASE_TOGGLE_MEM,
UVERBS_ATTR_IDR(BNXT_RE_RELEASE_TOGGLE_MEM_HANDLE,
BNXT_RE_OBJECT_GET_TOGGLE_MEM,
UVERBS_ACCESS_DESTROY,
UA_MANDATORY));
DECLARE_UVERBS_NAMED_OBJECT(BNXT_RE_OBJECT_GET_TOGGLE_MEM,
UVERBS_TYPE_ALLOC_IDR(get_toggle_mem_obj_cleanup),
&UVERBS_METHOD(BNXT_RE_METHOD_GET_TOGGLE_MEM),
&UVERBS_METHOD(BNXT_RE_METHOD_RELEASE_TOGGLE_MEM));
const struct uapi_definition bnxt_re_uapi_defs[] = {
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(BNXT_RE_OBJECT_ALLOC_PAGE),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(BNXT_RE_OBJECT_NOTIFY_DRV),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(BNXT_RE_OBJECT_GET_TOGGLE_MEM),
{}
};