From e3188d5f9925d378be535bb48ccb5f26834605aa Mon Sep 17 00:00:00 2001 From: Yunjian Wang Date: Wed, 22 Sep 2021 21:29:36 +0800 Subject: [PATCH] net/i40e: fix memzone leak on queue re-configure 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 ------------>i40e_dev_rx_queue_release rte_eth_dev_close -->i40e_dev_close ---->i40e_dev_free_queues ------>i40e_dev_rx_queue_release (not been called due to nb_rx_queues and nb_tx_queues are 0) And when queue number is changed to small size, the BIG memzone queue index will be lost. This will lead to a memory leak. So we should release the memzone when releasing queues. Fixes: 460d1679586e ("drivers/net: delete HW rings while freeing queues") Cc: stable@dpdk.org Signed-off-by: Yunjian Wang Acked-by: Haiyue Wang --- drivers/net/i40e/i40e_fdir.c | 3 --- drivers/net/i40e/i40e_rxtx.c | 8 ++++++-- drivers/net/i40e/i40e_rxtx.h | 2 ++ 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c index 105a6a657f..df2a5aaecc 100644 --- a/drivers/net/i40e/i40e_fdir.c +++ b/drivers/net/i40e/i40e_fdir.c @@ -284,7 +284,6 @@ i40e_fdir_teardown(struct i40e_pf *pf) { struct i40e_hw *hw = I40E_PF_TO_HW(pf); struct i40e_vsi *vsi; - struct rte_eth_dev *dev = &rte_eth_devices[pf->dev_data->port_id]; vsi = pf->fdir.fdir_vsi; if (!vsi) @@ -301,10 +300,8 @@ i40e_fdir_teardown(struct i40e_pf *pf) if (err) PMD_DRV_LOG(DEBUG, "Failed to do FDIR RX switch off"); - rte_eth_dma_zone_free(dev, "fdir_rx_ring", pf->fdir.rxq->queue_id); i40e_rx_queue_release(pf->fdir.rxq); pf->fdir.rxq = NULL; - rte_eth_dma_zone_free(dev, "fdir_tx_ring", pf->fdir.txq->queue_id); i40e_tx_queue_release(pf->fdir.txq); pf->fdir.txq = NULL; i40e_vsi_release(vsi); diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index caab66e433..807e1a4133 100644 --- a/drivers/net/i40e/i40e_rxtx.c +++ b/drivers/net/i40e/i40e_rxtx.c @@ -2024,6 +2024,7 @@ i40e_dev_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); @@ -2115,6 +2116,7 @@ i40e_rx_queue_release(void *rxq) i40e_rx_queue_release_mbufs(q); rte_free(q->sw_ring); + rte_memzone_free(q->mz); rte_free(q); } @@ -2427,6 +2429,7 @@ i40e_dev_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; @@ -2500,6 +2503,7 @@ i40e_tx_queue_release(void *txq) i40e_tx_queue_release_mbufs(q); rte_free(q->sw_ring); + rte_memzone_free(q->mz); rte_free(q); } @@ -3056,7 +3060,6 @@ i40e_dev_free_queues(struct rte_eth_dev *dev) continue; i40e_rx_queue_release(dev->data->rx_queues[i]); dev->data->rx_queues[i] = NULL; - rte_eth_dma_zone_free(dev, "rx_ring", i); } for (i = 0; i < dev->data->nb_tx_queues; i++) { @@ -3064,7 +3067,6 @@ i40e_dev_free_queues(struct rte_eth_dev *dev) continue; i40e_tx_queue_release(dev->data->tx_queues[i]); dev->data->tx_queues[i] = NULL; - rte_eth_dma_zone_free(dev, "tx_ring", i); } } @@ -3107,6 +3109,7 @@ i40e_fdir_setup_tx_resources(struct i40e_pf *pf) return I40E_ERR_NO_MEMORY; } + txq->mz = tz; txq->nb_tx_desc = I40E_FDIR_NUM_TX_DESC; txq->queue_id = I40E_FDIR_QUEUE_ID; txq->reg_idx = pf->fdir.fdir_vsi->base_queue; @@ -3165,6 +3168,7 @@ i40e_fdir_setup_rx_resources(struct i40e_pf *pf) return I40E_ERR_NO_MEMORY; } + rxq->mz = rz; rxq->nb_rx_desc = I40E_FDIR_NUM_RX_DESC; rxq->queue_id = I40E_FDIR_QUEUE_ID; rxq->reg_idx = pf->fdir.fdir_vsi->base_queue; diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h index 8d6ab16b4f..5a99da1d3e 100644 --- a/drivers/net/i40e/i40e_rxtx.h +++ b/drivers/net/i40e/i40e_rxtx.h @@ -121,6 +121,7 @@ struct i40e_rx_queue { uint16_t rx_using_sse; /**