Commit 304d20fb authored by Weibo Zhao's avatar Weibo Zhao Committed by JiangShui
Browse files

hns3 udma: support import and unimport segment 

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I85R2F


CVE: NA

-----------------------------------------------------------

The mainly part of function of import segment is excuted
by urma. Driver should only alloc and free memory.

Signed-off-by: default avatarWeibo Zhao <zhaoweibo3@huawei.com>
parent e94ccb1b

drivers/ub/hw/hns3/hns3_udma_main.c

+2 −0
Original line number Diff line number Diff line
@@ -182,6 +182,8 @@ static struct ubcore_ops g_udma_dev_ops = { 
	.mmap = udma_mmap,

	.register_seg = udma_register_seg,

	.unregister_seg = udma_unregister_seg,

	.import_seg = udma_import_seg,

	.unimport_seg = udma_unimport_seg,

	.create_jfc = udma_create_jfc,

	.modify_jfc = udma_modify_jfc,

	.destroy_jfc = udma_destroy_jfc,

drivers/ub/hw/hns3/hns3_udma_segment.c

+20 −0
Original line number Diff line number Diff line
@@ -311,3 +311,23 @@ int udma_unregister_seg(struct ubcore_target_seg *seg) 


	return 0;

}



struct ubcore_target_seg *udma_import_seg(struct ubcore_device *dev,

			       const struct ubcore_target_seg_cfg *cfg,

			       struct ubcore_udata *udata)

{

	struct ubcore_target_seg *tseg;



	tseg = kcalloc(1, sizeof(*tseg), GFP_KERNEL);

	if (!tseg)

		return NULL;



	return tseg;

}



int udma_unimport_seg(struct ubcore_target_seg *tseg)

{

	kfree(tseg);



	return 0;

}

drivers/ub/hw/hns3/hns3_udma_segment.h

+4 −0
Original line number Diff line number Diff line
@@ -79,6 +79,10 @@ struct ubcore_target_seg *udma_register_seg(struct ubcore_device *dev, 
				 const struct ubcore_seg_cfg *cfg,

				 struct ubcore_udata *udata);

int udma_unregister_seg(struct ubcore_target_seg *seg);

struct ubcore_target_seg *udma_import_seg(struct ubcore_device *dev,

			       const struct ubcore_target_seg_cfg *cfg,

			       struct ubcore_udata *udata);

int udma_unimport_seg(struct ubcore_target_seg *tseg);

uint64_t key_to_hw_index(uint32_t key);



#endif /* _UDMA_SEGMENT_H */