Commit 61a8118f authored by Chandramohan Akula's avatar Chandramohan Akula Committed by Jason Gunthorpe
Browse files

RDMA/bnxt_re: Add a new uapi for driver notification 

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: default avatarChandramohan Akula <chandramohan.akula@broadcom.com>
Signed-off-by: default avatarSelvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent 2ad4e630

drivers/infiniband/hw/bnxt_re/ib_verbs.c

+15 −0
Original line number Diff line number Diff line
@@ -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),

	{}

};

include/uapi/rdma/bnxt_re-abi.h

+4 −0
Original line number Diff line number Diff line
@@ -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__*/