Commit e44392a8 authored by Yu Zhang's avatar Yu Zhang Committed by JiangShui
Browse files

hns3 udma: support import and unimport jetty 

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


CVE: NA

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

In the kernel mode import_jetty, UDMA driver only needs to alloc memory
of the target jetty and return its pointer to the URMA.
In addition, unimport_jetty just free the memory of target jetty.

Signed-off-by: default avatarYu Zhang <zhangyu709@huawei.com>
parent ba75bc59

drivers/ub/hw/hns3/hns3_udma_jetty.c

+20 −0
Original line number Diff line number Diff line
@@ -376,3 +376,23 @@ int udma_destroy_jetty(struct ubcore_jetty *jetty) 


	return ret;

}



struct ubcore_tjetty *udma_import_jetty(struct ubcore_device *dev,

				   const struct ubcore_tjetty_cfg *cfg,

				   struct ubcore_udata *udata)

{

	struct ubcore_tjetty *tjetty;



	tjetty = kcalloc(1, sizeof(struct ubcore_tjetty), GFP_KERNEL);

	if (!tjetty)

		return NULL;



	return tjetty;

}



int udma_unimport_jetty(struct ubcore_tjetty *tjetty)

{

	kfree(tjetty);



	return 0;

}

drivers/ub/hw/hns3/hns3_udma_jetty.h

+4 −0
Original line number Diff line number Diff line
@@ -56,5 +56,9 @@ struct ubcore_jetty *udma_create_jetty(struct ubcore_device *dev, 
				  const struct ubcore_jetty_cfg *cfg,

				  struct ubcore_udata *udata);

int udma_destroy_jetty(struct ubcore_jetty *jetty);

struct ubcore_tjetty *udma_import_jetty(struct ubcore_device *dev,

				   const struct ubcore_tjetty_cfg *cfg,

				   struct ubcore_udata *udata);

int udma_unimport_jetty(struct ubcore_tjetty *tjetty);



#endif /* _UDMA_JETTY_H */

drivers/ub/hw/hns3/hns3_udma_main.c

+2 −0
Original line number Diff line number Diff line
@@ -342,6 +342,8 @@ static struct ubcore_ops g_udma_dev_ops = { 
	.unimport_jfr = udma_unimport_jfr,

	.create_jetty = udma_create_jetty,

	.destroy_jetty = udma_destroy_jetty,

	.import_jetty = udma_import_jetty,

	.unimport_jetty = udma_unimport_jetty,

	.create_tp = udma_create_tp,

	.modify_tp = udma_modify_tp,

	.destroy_tp = udma_destroy_tp,