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RDMA/bnxt_re: Add a new uapi for driver notification

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Add driver notify uapi for application notifying
the driver about the doorbell FIFO congestion.

Link: https://lore.kernel.org/r/1689742977-9128-8-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Chandramohan Akula <chandramohan.akula@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Chandramohan Akula 2023-07-18 22:02:57 -07:00 committed by Jason Gunthorpe
parent 2ad4e6303a
commit 61a8118f60
2 changed files with 19 additions and 0 deletions
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15
drivers/infiniband/hw/bnxt_re/ib_verbs.c
View file

@ -4183,6 +4183,15 @@ void bnxt_re_mmap_free(struct rdma_user_mmap_entry *rdma_entry)
kfree(bnxt_entry);
}
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);
@ -4320,7 +4329,13 @@ DECLARE_UVERBS_NAMED_OBJECT(BNXT_RE_OBJECT_ALLOC_PAGE,
&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));
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),
{}
};

4
include/uapi/rdma/bnxt_re-abi.h
View file

@ -132,6 +132,7 @@ enum bnxt_re_shpg_offt {
enum bnxt_re_objects {
BNXT_RE_OBJECT_ALLOC_PAGE = (1U << UVERBS_ID_NS_SHIFT),
BNXT_RE_OBJECT_NOTIFY_DRV,
};
enum bnxt_re_alloc_page_type {
@ -157,4 +158,7 @@ enum bnxt_re_alloc_page_methods {
BNXT_RE_METHOD_DESTROY_PAGE,
};
enum bnxt_re_notify_drv_methods {
BNXT_RE_METHOD_NOTIFY_DRV = (1U << UVERBS_ID_NS_SHIFT),
};
#endif /* __BNXT_RE_UVERBS_ABI_H__*/