Commit 84019dd8 authored by Yizhen Fan's avatar Yizhen Fan Committed by fanyizhen1995
Browse files

ub: uburma add cmd user control implementation. 



driver inclusion
category: feature
bugzilla: NA
CVE: NA

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

Uburma add implementations of handling user control cmd from
user layer.

This will make kernel possible to handle urma_user_ctl in user-layer urma.

User_ctl will finally call ubcore_user_control.

Signed-off-by: default avatarGuoxin Qian <qianguoxin@huawei.com>
Signed-off-by: default avatarYizhen Fan <fanyizhen@huawei.com>
parent b9103ff6

drivers/ub/urma/uburma/uburma_cmd.c

+49 −0
Original line number Diff line number Diff line
@@ -1456,6 +1456,54 @@ static int uburma_cmd_unbind_jetty(struct ubcore_device *ubc_dev, struct uburma_ 
	return ret;

}



static int uburma_fill_user_ctl_info(struct ubcore_ucontext *ctx,

				     struct uburma_cmd_user_ctl *user_ctl,

				     struct ubcore_user_ctl *k_user_ctl)

{

	if (ctx == NULL) {

		uburma_log_err("parameter invalid with ctx nullptr.\n");

		return -EINVAL;

	}



	k_user_ctl->uctx = ctx;

	k_user_ctl->in.addr = user_ctl->in.addr;

	k_user_ctl->in.len = user_ctl->in.len;

	k_user_ctl->in.opcode = user_ctl->in.opcode;



	k_user_ctl->out.addr = user_ctl->out.addr;

	k_user_ctl->out.len = user_ctl->out.len;



	k_user_ctl->udrv_data.in_addr = user_ctl->udrv.in_addr;

	k_user_ctl->udrv_data.in_len = user_ctl->udrv.in_len;

	k_user_ctl->udrv_data.out_addr = user_ctl->udrv.out_addr;

	k_user_ctl->udrv_data.out_len = user_ctl->udrv.out_len;



	return 0;

}



static int uburma_cmd_user_ctl(struct ubcore_device *ubc_dev, struct uburma_file *file,

			       struct uburma_cmd_hdr *hdr)

{

	struct ubcore_user_ctl k_user_ctl = { 0 };

	struct uburma_cmd_user_ctl user_ctl;

	int ret;



	ret = uburma_copy_from_user(&user_ctl, (void __user *)(uintptr_t)hdr->args_addr,

				    sizeof(struct uburma_cmd_user_ctl));

	if (ret != 0)

		return ret;



	ret = uburma_fill_user_ctl_info(file->ucontext, &user_ctl, &k_user_ctl);

	if (ret != 0)

		return ret;



	ret = ubcore_user_control(&k_user_ctl);

	if (ret != 0)

		return ret;



	return 0;

}



typedef int (*uburma_cmd_handler)(struct ubcore_device *ubc_dev, struct uburma_file *file,

				  struct uburma_cmd_hdr *hdr);
@@ -1491,6 +1539,7 @@ static uburma_cmd_handler g_uburma_cmd_handlers[] = { 
	[UBURMA_CMD_UNADVISE_JETTY] = uburma_cmd_unadvise_jetty,

	[UBURMA_CMD_BIND_JETTY] = uburma_cmd_bind_jetty,

	[UBURMA_CMD_UNBIND_JETTY] = uburma_cmd_unbind_jetty,

	[UBURMA_CMD_USER_CTL] = uburma_cmd_user_ctl

};



static int uburma_cmd_parse(struct ubcore_device *ubc_dev, struct uburma_file *file,

drivers/ub/urma/uburma/uburma_cmd.h

+19 −0
Original line number Diff line number Diff line
@@ -384,6 +384,25 @@ struct uburma_cmd_unadvise_jetty { 
	} in;

};



struct uburma_cmd_user_ctl {

	struct {

		uint64_t addr;

		uint32_t len;

		uint32_t opcode;

	} in; /* struct [in] should be consistent with [urma_user_ctl_in_t] */

	struct {

		uint64_t addr;

		uint32_t len;

		uint32_t rsv;

	} out; /* struct [out] should be consistent with [urma_user_ctl_out_t] */

	struct {

		uint64_t in_addr;

		uint32_t in_len;

		uint64_t out_addr;

		uint32_t out_len;

	} udrv; /* struct [udrv] should be consistent with [urma_udrv_t] */

};



/* only for event ioctl */

#define MAX_JFCE_EVENT_CNT 16

#define UBURMA_EVENT_CMD_MAGIC 'E'