From: Kalesh AP Date: Mon, 2 Mar 2026 11:00:31 +0000 (+0530) Subject: RDMA/bnxt_re: Move the UAPI methods to a dedicated file X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=eee6268421a2ccc6d47d8e175a1f4bfcd78a83ca;p=thirdparty%2Fkernel%2Flinux.git RDMA/bnxt_re: Move the UAPI methods to a dedicated file 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 Reviewed-by: Selvin Xavier Signed-off-by: Sriharsha Basavapatna Signed-off-by: Jason Gunthorpe --- diff --git a/drivers/infiniband/hw/bnxt_re/Makefile b/drivers/infiniband/hw/bnxt_re/Makefile index f63417d2ccc6..1533c079c9da 100644 --- a/drivers/infiniband/hw/bnxt_re/Makefile +++ b/drivers/infiniband/hw/bnxt_re/Makefile @@ -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 diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c index 62286a06db81..167fe414329d 100644 --- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c +++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c @@ -642,7 +642,7 @@ fail: 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), - {} -}; diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.h b/drivers/infiniband/hw/bnxt_re/ib_verbs.h index 76ba9ab04d5c..a11f56730a31 100644 --- a/drivers/infiniband/hw/bnxt_re/ib_verbs.h +++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.h @@ -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__ */ diff --git a/drivers/infiniband/hw/bnxt_re/uapi.c b/drivers/infiniband/hw/bnxt_re/uapi.c new file mode 100644 index 000000000000..0145882e49f6 --- /dev/null +++ b/drivers/infiniband/hw/bnxt_re/uapi.c @@ -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 +#include +#include +#include +#define UVERBS_MODULE_NAME bnxt_re +#include +#include + +#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), + {} +};