On 15-Feb-19 19:10, Shiraz Saleem wrote:
> +/**
> + * irdma_cm_teardown_connections - teardown QPs
> + * @iwdev: device pointer
> + * @ipaddr: Pointer to IPv4 or IPv6 address
> + * @ipv4: flag indicating IPv4 when true
There is no ipv4 parameter.
> + * @disconnect_all: flag indicating disconnect all QPs
> + * teardown QPs where source or destination addr matches ip addr
> + */
> +void irdma_cm_teardown_connections(struct irdma_device *iwdev, u32 *ipaddr,
> + struct irdma_cm_info *nfo,
> + bool disconnect_all)
> +{
> + struct irdma_cm_core *cm_core = &iwdev->cm_core;
> + struct list_head *list_core_temp;
> + struct list_head *list_node;
> + struct irdma_cm_node *cm_node;
> + struct list_head teardown_list;
> + struct ib_qp_attr attr;
> + struct irdma_sc_vsi *vsi = &iwdev->vsi;
> + struct irdma_sc_qp *sc_qp;
> + struct irdma_qp *qp;
> + int i;
> + unsigned long flags;
> +
> + INIT_LIST_HEAD(&teardown_list);
> +
> + spin_lock_irqsave(&cm_core->ht_lock, flags);
> + list_for_each_safe(list_node, list_core_temp,
> + &cm_core->accelerated_list) {
> + cm_node = container_of(list_node, struct irdma_cm_node, list);
> + if (disconnect_all ||
> + (nfo->vlan_id == cm_node->vlan_id &&
> + !memcmp(cm_node->loc_addr, ipaddr, nfo->ipv4 ? 4 : 16))) {
> + atomic_inc(&cm_node->ref_count);
> + list_add(&cm_node->teardown_entry, &teardown_list);
> + }
> + }
> + list_for_each_safe(list_node, list_core_temp,
> + &cm_core->non_accelerated_list) {
> + cm_node = container_of(list_node, struct irdma_cm_node, list);
> + if (disconnect_all ||
> + (nfo->vlan_id == cm_node->vlan_id &&
> + !memcmp(cm_node->loc_addr, ipaddr, nfo->ipv4 ? 4 : 16))) {
> + atomic_inc(&cm_node->ref_count);
> + list_add(&cm_node->teardown_entry, &teardown_list);
> + }
> + }
> + spin_unlock_irqrestore(&cm_core->ht_lock, flags);
> +
> + list_for_each_safe(list_node, list_core_temp, &teardown_list) {
> + cm_node = container_of(list_node, struct irdma_cm_node,
> + teardown_entry);
> + attr.qp_state = IB_QPS_ERR;
> + irdma_modify_qp(&cm_node->iwqp->ibqp, &attr, IB_QP_STATE, NULL);
> + if (iwdev->reset)
> + irdma_cm_disconn(cm_node->iwqp);
> + irdma_rem_ref_cm_node(cm_node);
> + }
> + if (!iwdev->roce_mode)
> + return;
> +
> + INIT_LIST_HEAD(&teardown_list);
> + for (i = 0; i < IRDMA_MAX_USER_PRIORITY; i++) {
> + spin_lock_irqsave(&vsi->qos[i].lock, flags);
> + list_for_each_safe(list_node, list_core_temp, &vsi->qos[i].qplist) {
> + u32 qp_ip[4];
> +
> + sc_qp = container_of(list_node, struct irdma_sc_qp, list);
> + if (sc_qp->qp_type != IRDMA_QP_TYPE_ROCE_RC)
> + continue;
> +
> + qp = sc_qp->back_qp;
> + if (!disconnect_all) {
> + if (nfo->ipv4)
> + qp_ip[0] = qp->udp_info.local_ipaddr3;
> + else
> + memcpy(qp_ip,
> + &qp->udp_info.local_ipaddr0,
> + sizeof(qp_ip));
> + }
> +
> + if (disconnect_all ||
> + (nfo->vlan_id == qp->udp_info.vlan_tag &&
> + !memcmp(qp_ip, ipaddr, nfo->ipv4 ? 4 : 16))) {
> + spin_lock_irqsave(&iwdev->rf->qptable_lock, flags);
You should use different 'flags' here.
> + if (iwdev->rf->qp_table[sc_qp->qp_uk.qp_id]) {
> + irdma_add_ref(&qp->ibqp);
> + list_add(&qp->teardown_entry, &teardown_list);
> + }
> + spin_unlock_irqrestore(&iwdev->rf->qptable_lock, flags);
> + }
> + }
> + spin_unlock_irqrestore(&vsi->qos[i].lock, flags);
> + }
> +
> + list_for_each_safe(list_node, list_core_temp, &teardown_list) {
> + qp = container_of(list_node, struct irdma_qp, teardown_entry);
> + attr.qp_state = IB_QPS_ERR;
> + irdma_modify_qp_roce(&qp->ibqp, &attr, IB_QP_STATE, NULL);
> + irdma_rem_ref(&qp->ibqp);
> + }
> +}
