Commit 1551c95b authored by Karsten Graul's avatar Karsten Graul Committed by David S. Miller
Browse files

net/smc: final part of add link processing as SMC server 



This patch finalizes the ADD_LINK processing of new links. Send the
CONFIRM_LINK request to the peer, receive the response and set link
state to ACTIVE.

Signed-off-by: default avatarKarsten Graul <kgraul@linux.ibm.com>
Reviewed-by: default avatarUrsula Braun <ubraun@linux.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 57b49924

net/smc/smc_llc.c

+28 −1
Original line number Diff line number Diff line
@@ -904,6 +904,33 @@ out: 
	return rc;

}



static int smc_llc_srv_conf_link(struct smc_link *link,

				 struct smc_link *link_new,

				 enum smc_lgr_type lgr_new_t)

{

	struct smc_link_group *lgr = link->lgr;

	struct smc_llc_qentry *qentry = NULL;

	int rc;



	/* send CONFIRM LINK request over the RoCE fabric */

	rc = smc_llc_send_confirm_link(link_new, SMC_LLC_REQ);

	if (rc)

		return -ENOLINK;

	/* receive CONFIRM LINK response over the RoCE fabric */

	qentry = smc_llc_wait(lgr, link, SMC_LLC_WAIT_FIRST_TIME,

			      SMC_LLC_CONFIRM_LINK);

	if (!qentry) {

		/* send DELETE LINK */

		smc_llc_send_delete_link(link, link_new->link_id, SMC_LLC_REQ,

					 false, SMC_LLC_DEL_LOST_PATH);

		return -ENOLINK;

	}

	smc_llc_link_active(link_new);

	lgr->type = lgr_new_t;

	smc_llc_flow_qentry_del(&lgr->llc_flow_lcl);

	return 0;

}



int smc_llc_srv_add_link(struct smc_link *link)

{

	enum smc_lgr_type lgr_new_t = SMC_LGR_SYMMETRIC;
@@ -967,7 +994,7 @@ int smc_llc_srv_add_link(struct smc_link *link) 
	rc = smc_llc_srv_rkey_exchange(link, link_new);

	if (rc)

		goto out_err;

	/* tbd: rc = smc_llc_srv_conf_link(link, link_new, lgr_new_t); */

	rc = smc_llc_srv_conf_link(link, link_new, lgr_new_t);

	if (rc)

		goto out_err;

	return 0;

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