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i40iw: Release cm_id ref on PCI function reset 

On PCI function reset, cm_id reference is not released
which causes an application hang, as it waits on the
cm_id to be released on rdma_destroy.

To fix this, call i40iw_cm_disconn during a PCI function
reset to clean-up resources and release cm_id reference.

Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Henry Orosco <henry.orosco@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Shiraz Saleem 2017-06-23 16:03:58 -05:00 committed by Doug Ledford
parent 6c1d94de4e
commit 6327cb09df
1 changed files with 4 additions and 1 deletions
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5
drivers/infiniband/hw/i40iw/i40iw_cm.c
View File

@ -3487,7 +3487,8 @@ static void i40iw_cm_disconn_true(struct i40iw_qp *iwqp)
if (((original_hw_tcp_state == I40IW_TCP_STATE_CLOSED) ||
(original_hw_tcp_state == I40IW_TCP_STATE_TIME_WAIT) ||
(last_ae == I40IW_AE_RDMAP_ROE_BAD_LLP_CLOSE) ||
(last_ae == I40IW_AE_LLP_CONNECTION_RESET))) {
(last_ae == I40IW_AE_LLP_CONNECTION_RESET) ||
iwdev->reset)) {
issue_close = 1;
iwqp->cm_id = NULL;
if (!iwqp->flush_issued) {
@ -4265,6 +4266,8 @@ void i40iw_cm_disconnect_all(struct i40iw_device *iwdev)
cm_node = container_of(list_node, struct i40iw_cm_node, connected_entry);
attr.qp_state = IB_QPS_ERR;
i40iw_modify_qp(&cm_node->iwqp->ibqp, &attr, IB_QP_STATE, NULL);
if (iwdev->reset)
i40iw_cm_disconn(cm_node->iwqp);
i40iw_rem_ref_cm_node(cm_node);
}
}