[dpdk-dev] [PATCH v2 2/4] net/ice: delete HW rings when releasing queues

[Yunjian Wang]

Normally when closing the device the queue memzone should be
freed. But the memzone will be not freed, when device setup
ops like:

rte_eth_bond_slave_remove
-->__eth_bond_slave_remove_lock_free
---->slave_remove
------>rte_eth_dev_internal_reset
-------->rte_eth_dev_rx_queue_config
---------->eth_dev_rx_queue_config
------------>ice_rx_queue_release
rte_eth_dev_close
-->ice_dev_close
---->ice_free_queues
------>ice_rx_queue_release
      (not been called due to nb_rx_queues and nb_tx_queues are 0)

In order to free the memzone, we can release the memzone
when releasing queues.

Signed-off-by: Yunjian Wang <wangyunj...@huawei.com>
---
 drivers/net/ice/ice_rxtx.c | 6 ++++--
 drivers/net/ice/ice_rxtx.h | 2 ++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
index 5d7ab4f047..472da6bf83 100644
--- a/drivers/net/ice/ice_rxtx.c
+++ b/drivers/net/ice/ice_rxtx.c
@@ -1135,6 +1135,7 @@ ice_rx_queue_setup(struct rte_eth_dev *dev,
                return -ENOMEM;
        }
 
+       rxq->mz = rz;
        /* Zero all the descriptors in the ring. */
        memset(rz->addr, 0, ring_size);
 
@@ -1190,6 +1191,7 @@ ice_rx_queue_release(void *rxq)
 
        q->rx_rel_mbufs(q);
        rte_free(q->sw_ring);
+       rte_memzone_free(q->mz);
        rte_free(q);
 }
 
@@ -1336,6 +1338,7 @@ ice_tx_queue_setup(struct rte_eth_dev *dev,
                return -ENOMEM;
        }
 
+       txq->mz = tz;
        txq->nb_tx_desc = nb_desc;
        txq->tx_rs_thresh = tx_rs_thresh;
        txq->tx_free_thresh = tx_free_thresh;
@@ -1386,6 +1389,7 @@ ice_tx_queue_release(void *txq)
 
        q->tx_rel_mbufs(q);
        rte_free(q->sw_ring);
+       rte_memzone_free(q->mz);
        rte_free(q);
 }
 
@@ -2080,7 +2084,6 @@ ice_free_queues(struct rte_eth_dev *dev)
                        continue;
                ice_rx_queue_release(dev->data->rx_queues[i]);
                dev->data->rx_queues[i] = NULL;
-               rte_eth_dma_zone_free(dev, "rx_ring", i);
        }
        dev->data->nb_rx_queues = 0;
 
@@ -2089,7 +2092,6 @@ ice_free_queues(struct rte_eth_dev *dev)
                        continue;
                ice_tx_queue_release(dev->data->tx_queues[i]);
                dev->data->tx_queues[i] = NULL;
-               rte_eth_dma_zone_free(dev, "tx_ring", i);
        }
        dev->data->nb_tx_queues = 0;
 }
diff --git a/drivers/net/ice/ice_rxtx.h b/drivers/net/ice/ice_rxtx.h
index b10db0874d..903c99a640 100644
--- a/drivers/net/ice/ice_rxtx.h
+++ b/drivers/net/ice/ice_rxtx.h
@@ -89,6 +89,7 @@ struct ice_rx_queue {
        ice_rxd_to_pkt_fields_t rxd_to_pkt_fields; /* handle FlexiMD by RXDID */
        ice_rx_release_mbufs_t rx_rel_mbufs;
        uint64_t offloads;
+       const struct rte_memzone *mz;
 };
 
 struct ice_tx_entry {
@@ -133,6 +134,7 @@ struct ice_tx_queue {
        bool tx_deferred_start; /* don't start this queue in dev start */
        bool q_set; /* indicate if tx queue has been configured */
        ice_tx_release_mbufs_t tx_rel_mbufs;
+       const struct rte_memzone *mz;
 };
 
 /* Offload features */
-- 
2.23.0