/**
* ntb_transport_link_down - Notify NTB transport to no longer enqueue data
* @qp: NTB transport layer queue to be disabled
*
* Notify NTB transport layer of client's desire to no longer receive data on
* transport queue specified. It is the client's responsibility to ensure all
* entries on queue are purged or otherwise handled appropriately.
*/
static void
ntb_transport_link_down(struct ntb_transport_qp *qp)
{
uint32_t val;
if (qp == NULL)
return;
qp->client_ready = false;
ntb_spad_read(qp->ntb, IF_NTB_QP_LINKS, &val);
ntb_peer_spad_write(qp->ntb, IF_NTB_QP_LINKS,
val & ~(1 << qp->qp_num));
if (qp->link_is_up)
ntb_send_link_down(qp);
else
callout_drain(&qp->link_work);
}
/**
* ntb_transport_link_down - Notify NTB transport to no longer enqueue data
* @qp: NTB transport layer queue to be disabled
*
* Notify NTB transport layer of client's desire to no longer receive data on
* transport queue specified. It is the client's responsibility to ensure all
* entries on queue are purged or otherwise handled appropraitely.
*/
static void
ntb_transport_link_down(struct ntb_transport_qp *qp)
{
int rc, val;
if (qp == NULL)
return;
qp->client_ready = NTB_LINK_DOWN;
rc = ntb_read_remote_spad(qp->ntb, IF_NTB_QP_LINKS, &val);
if (rc != 0)
return;
rc = ntb_write_remote_spad(qp->ntb, IF_NTB_QP_LINKS,
val & ~(1 << qp->qp_num));
if (qp->qp_link == NTB_LINK_UP)
ntb_send_link_down(qp);
else
callout_drain(&qp->link_work);
}