Commit 07d04c76 authored by Yizhen Fan's avatar Yizhen Fan Committed by fanyizhen1995
Browse files

ub: ubcore add bind and unbind jetty api. 



driver inclusion
category: feature
bugzilla: NA
CVE: NA

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

Ubcore add bind and unbind jetty api.
Bind jetty: Bind local jetty with remote jetty, and construct a
transport channel between them.
Unbind jetty: Unbind local jetty with remote jetty.

Signed-off-by: default avatarGuoxin Qian <qianguoxin@huawei.com>
Signed-off-by: default avatarYizhen Fan <fanyizhen@huawei.com>
parent 6c0c23b9

drivers/ub/urma/ubcore/ubcore_jetty.c

+65 −0
Original line number Diff line number Diff line
@@ -793,6 +793,71 @@ int ubcore_unadvise_jetty(struct ubcore_jetty *jetty, struct ubcore_tjetty *tjet 
}

EXPORT_SYMBOL(ubcore_unadvise_jetty);



int ubcore_bind_jetty(struct ubcore_jetty *jetty, struct ubcore_tjetty *tjetty,

		      struct ubcore_udata *udata)

{

	struct ubcore_tp_advice advice;

	int ret;



	if (jetty == NULL || tjetty == NULL || !ubcore_have_tp_ops(jetty->ub_dev)) {

		ubcore_log_err("invalid parameter.\n");

		return -1;

	}

	if ((jetty->jetty_cfg.trans_mode != UBCORE_TP_RC) ||

	    (tjetty->cfg.trans_mode != UBCORE_TP_RC)) {

		ubcore_log_err("trans mode is not rc type.\n");

		return -1;

	}

	if (jetty->remote_jetty != NULL) {

		ubcore_log_err("The same jetty, different tjetty, prevent duplicate bind.\n");

		return -1;

	}



	ret = ubcore_advice_jetty_tjetty(&advice, jetty, tjetty);

	if (ret != 0)

		return ret;



	ret = ubcore_bind_tp(jetty, tjetty, &advice, udata);



	ubcore_put_advice(&advice);

	if (ret != 0) {

		ubcore_log_err("Failed to setup tp connection.\n");

		return ret;

	}

	jetty->remote_jetty = tjetty;

	return 0;

}

EXPORT_SYMBOL(ubcore_bind_jetty);



int ubcore_unbind_jetty(struct ubcore_jetty *jetty, struct ubcore_tjetty *tjetty)

{

	struct ubcore_tp_advice advice;

	int ret;



	if (jetty == NULL || tjetty == NULL) {

		ubcore_log_err("invalid parameter.\n");

		return -1;

	}

	if ((jetty->jetty_cfg.trans_mode != UBCORE_TP_RC) ||

	    (tjetty->cfg.trans_mode != UBCORE_TP_RC)) {

		ubcore_log_err("trans mode is not rc type.\n");

		return -1;

	}



	ret = ubcore_advice_jetty_tjetty(&advice, jetty, tjetty);

	if (ret != 0)

		return ret;



	ret = ubcore_unbind_tp(jetty, tjetty, &advice);

	ubcore_put_advice(&advice);

	if (ret != 0)

		ubcore_log_err("Failed to destroy jetty tp.\n");



	jetty->remote_jetty = NULL;

	return ret;

}

EXPORT_SYMBOL(ubcore_unbind_jetty);



struct ubcore_jetty *ubcore_find_jetty(struct ubcore_device *dev, uint32_t jetty_id)

{

	return ubcore_hash_table_lookup(&dev->ht[UBCORE_HT_JETTY], jetty_id, &jetty_id);

include/urma/ubcore_uapi.h

+19 −0
Original line number Diff line number Diff line
@@ -359,6 +359,25 @@ int ubcore_advise_jetty(struct ubcore_jetty *jetty, struct ubcore_tjetty *tjetty 
 * @return: 0 on success, other value on error

 */

int ubcore_unadvise_jetty(struct ubcore_jetty *jetty, struct ubcore_tjetty *tjetty);

/**

 * Bind jetty: Bind local jetty with remote jetty, and construct a transport channel between them.

 * @param[in] jetty: local jetty to bind;

 * @param[in] tjetty: target jetty imported before;

 * @param[in] udata (optional): ucontext and user space driver data

 * @return: 0 on success, other value on error

 * Note: A local jetty can be binded with only one remote jetty.

 * Only supported by jetty with URMA_TM_RC.

 */

int ubcore_bind_jetty(struct ubcore_jetty *jetty, struct ubcore_tjetty *tjetty,

		      struct ubcore_udata *udata);

/**

 * Unbind jetty: Unbind local jetty with remote jetty,

 * and tear down the transport channel between them.

 * @param[in] jetty: local jetty to unbind;

 * @param[in] tjetty: target jetty advised before;

 * @return: 0 on success, other value on error

 */

int ubcore_unbind_jetty(struct ubcore_jetty *jetty, struct ubcore_tjetty *tjetty);

/**

 * operation of user ioctl cmd.

 * @param[in] k_user_ctl: kdrv user control command pointer;