Ejemplos de smc_ib_create_protection_domain en C++ (Cpp)

Ejemplo n.º 1

Archivo: smc_core.c Proyecto: ReneNyffenegger/linux

/* create a new SMC link group */
static int smc_lgr_create(struct smc_sock *smc, __be32 peer_in_addr,
			  struct smc_ib_device *smcibdev, u8 ibport,
			  char *peer_systemid, unsigned short vlan_id)
{
	struct smc_link_group *lgr;
	struct smc_link *lnk;
	u8 rndvec[3];
	int rc = 0;
	int i;

	lgr = kzalloc(sizeof(*lgr), GFP_KERNEL);
	if (!lgr) {
		rc = -ENOMEM;
		goto out;
	}
	lgr->role = smc->listen_smc ? SMC_SERV : SMC_CLNT;
	lgr->sync_err = false;
	lgr->daddr = peer_in_addr;
	memcpy(lgr->peer_systemid, peer_systemid, SMC_SYSTEMID_LEN);
	lgr->vlan_id = vlan_id;
	rwlock_init(&lgr->sndbufs_lock);
	rwlock_init(&lgr->rmbs_lock);
	for (i = 0; i < SMC_RMBE_SIZES; i++) {
		INIT_LIST_HEAD(&lgr->sndbufs[i]);
		INIT_LIST_HEAD(&lgr->rmbs[i]);
	}
	smc_lgr_num += SMC_LGR_NUM_INCR;
	memcpy(&lgr->id, (u8 *)&smc_lgr_num, SMC_LGR_ID_SIZE);
	INIT_DELAYED_WORK(&lgr->free_work, smc_lgr_free_work);
	lgr->conns_all = RB_ROOT;

	lnk = &lgr->lnk[SMC_SINGLE_LINK];
	/* initialize link */
	lnk->smcibdev = smcibdev;
	lnk->ibport = ibport;
	lnk->path_mtu = smcibdev->pattr[ibport - 1].active_mtu;
	if (!smcibdev->initialized)
		smc_ib_setup_per_ibdev(smcibdev);
	get_random_bytes(rndvec, sizeof(rndvec));
	lnk->psn_initial = rndvec[0] + (rndvec[1] << 8) + (rndvec[2] << 16);
	rc = smc_wr_alloc_link_mem(lnk);
	if (rc)
		goto free_lgr;
	rc = smc_ib_create_protection_domain(lnk);
	if (rc)
		goto free_link_mem;
	rc = smc_ib_create_queue_pair(lnk);
	if (rc)
		goto dealloc_pd;
	rc = smc_wr_create_link(lnk);
	if (rc)
		goto destroy_qp;
	init_completion(&lnk->llc_confirm);
	init_completion(&lnk->llc_confirm_resp);

	smc->conn.lgr = lgr;
	rwlock_init(&lgr->conns_lock);
	spin_lock_bh(&smc_lgr_list.lock);
	list_add(&lgr->list, &smc_lgr_list.list);
	spin_unlock_bh(&smc_lgr_list.lock);
	return 0;

destroy_qp:
	smc_ib_destroy_queue_pair(lnk);
dealloc_pd:
	smc_ib_dealloc_protection_domain(lnk);
free_link_mem:
	smc_wr_free_link_mem(lnk);
free_lgr:
	kfree(lgr);
out:
	return rc;
}

Ejemplo n.º 2

Archivo: smc_core.c Proyecto: multipath-tcp/mptcp_net-next

/* create a new SMC link group */
static int smc_lgr_create(struct smc_sock *smc, bool is_smcd,
			  struct smc_ib_device *smcibdev, u8 ibport,
			  char *peer_systemid, unsigned short vlan_id,
			  struct smcd_dev *smcismdev, u64 peer_gid)
{
	struct smc_link_group *lgr;
	struct smc_link *lnk;
	u8 rndvec[3];
	int rc = 0;
	int i;

	if (is_smcd && vlan_id) {
		rc = smc_ism_get_vlan(smcismdev, vlan_id);
		if (rc)
			goto out;
	}

	lgr = kzalloc(sizeof(*lgr), GFP_KERNEL);
	if (!lgr) {
		rc = -ENOMEM;
		goto out;
	}
	lgr->is_smcd = is_smcd;
	lgr->sync_err = 0;
	lgr->vlan_id = vlan_id;
	rwlock_init(&lgr->sndbufs_lock);
	rwlock_init(&lgr->rmbs_lock);
	rwlock_init(&lgr->conns_lock);
	for (i = 0; i < SMC_RMBE_SIZES; i++) {
		INIT_LIST_HEAD(&lgr->sndbufs[i]);
		INIT_LIST_HEAD(&lgr->rmbs[i]);
	}
	smc_lgr_list.num += SMC_LGR_NUM_INCR;
	memcpy(&lgr->id, (u8 *)&smc_lgr_list.num, SMC_LGR_ID_SIZE);
	INIT_DELAYED_WORK(&lgr->free_work, smc_lgr_free_work);
	lgr->conns_all = RB_ROOT;
	if (is_smcd) {
		/* SMC-D specific settings */
		lgr->peer_gid = peer_gid;
		lgr->smcd = smcismdev;
	} else {
		/* SMC-R specific settings */
		lgr->role = smc->listen_smc ? SMC_SERV : SMC_CLNT;
		memcpy(lgr->peer_systemid, peer_systemid, SMC_SYSTEMID_LEN);

		lnk = &lgr->lnk[SMC_SINGLE_LINK];
		/* initialize link */
		lnk->state = SMC_LNK_ACTIVATING;
		lnk->link_id = SMC_SINGLE_LINK;
		lnk->smcibdev = smcibdev;
		lnk->ibport = ibport;
		lnk->path_mtu = smcibdev->pattr[ibport - 1].active_mtu;
		if (!smcibdev->initialized)
			smc_ib_setup_per_ibdev(smcibdev);
		get_random_bytes(rndvec, sizeof(rndvec));
		lnk->psn_initial = rndvec[0] + (rndvec[1] << 8) +
			(rndvec[2] << 16);
		rc = smc_ib_determine_gid(lnk->smcibdev, lnk->ibport,
					  vlan_id, lnk->gid, &lnk->sgid_index);
		if (rc)
			goto free_lgr;
		rc = smc_llc_link_init(lnk);
		if (rc)
			goto free_lgr;
		rc = smc_wr_alloc_link_mem(lnk);
		if (rc)
			goto clear_llc_lnk;
		rc = smc_ib_create_protection_domain(lnk);
		if (rc)
			goto free_link_mem;
		rc = smc_ib_create_queue_pair(lnk);
		if (rc)
			goto dealloc_pd;
		rc = smc_wr_create_link(lnk);
		if (rc)
			goto destroy_qp;
	}
	smc->conn.lgr = lgr;
	spin_lock_bh(&smc_lgr_list.lock);
	list_add(&lgr->list, &smc_lgr_list.list);
	spin_unlock_bh(&smc_lgr_list.lock);
	return 0;

destroy_qp:
	smc_ib_destroy_queue_pair(lnk);
dealloc_pd:
	smc_ib_dealloc_protection_domain(lnk);
free_link_mem:
	smc_wr_free_link_mem(lnk);
clear_llc_lnk:
	smc_llc_link_clear(lnk);
free_lgr:
	kfree(lgr);
out:
	return rc;
}