Commit be8691a5 authored by Yu Zhang's avatar Yu Zhang Committed by JiangShui
Browse files

hns3 udma: support import and unimport jfr 

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


CVE: NA

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

In the kernel mode import_jfr, UDMA driver only needs to create
the target jfr structure and returned it to the URMA.
In addition, unimport_jfr just free the target jfr.

Signed-off-by: default avatarYu Zhang <zhangyu709@huawei.com>
parent 563866c1

drivers/ub/hw/hns3/hns3_udma_jfr.c

+20 −0
Original line number Diff line number Diff line
@@ -442,6 +442,26 @@ int udma_destroy_jfr(struct ubcore_jfr *jfr) 
	return 0;

}



struct ubcore_tjetty *udma_import_jfr(struct ubcore_device *dev,

				 const struct ubcore_tjetty_cfg *cfg,

				 struct ubcore_udata *udata)

{

	struct ubcore_tjetty *tjfr;



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

	if (!tjfr)

		return NULL;



	return tjfr;

}



int udma_unimport_jfr(struct ubcore_tjetty *tjfr)

{

	kfree(tjfr);



	return 0;

}



static int udma_hw_modify_srq(struct udma_dev *dev, uint32_t jfrn,

			      uint16_t jfr_limit)

{

drivers/ub/hw/hns3/hns3_udma_jfr.h

+4 −0
Original line number Diff line number Diff line
@@ -87,6 +87,10 @@ static inline struct udma_jfr *to_udma_jfr(struct ubcore_jfr *ubcore_jfr) 
struct ubcore_jfr *udma_create_jfr(struct ubcore_device *dev, const struct ubcore_jfr_cfg *cfg,

			      struct ubcore_udata *udata);

int udma_destroy_jfr(struct ubcore_jfr *jfr);

struct ubcore_tjetty *udma_import_jfr(struct ubcore_device *dev,

				 const struct ubcore_tjetty_cfg *cfg,

				 struct ubcore_udata *udata);

int udma_unimport_jfr(struct ubcore_tjetty *tjfr);

int udma_modify_jfr(struct ubcore_jfr *jfr, const struct ubcore_jfr_attr *attr,

		    struct ubcore_udata *udata);

void udma_jfr_event(struct udma_dev *udma_dev, uint32_t jfrn, int event_type);

drivers/ub/hw/hns3/hns3_udma_main.c

+2 −0
Original line number Diff line number Diff line
@@ -323,6 +323,8 @@ static struct ubcore_ops g_udma_dev_ops = { 
	.create_jfr = udma_create_jfr,

	.modify_jfr = udma_modify_jfr,

	.destroy_jfr = udma_destroy_jfr,

	.import_jfr = udma_import_jfr,

	.unimport_jfr = udma_unimport_jfr,

};



static void udma_cleanup_uar_table(struct udma_dev *dev)