diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmvnic.c | 114 | ||||
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmvnic.h | 1 |
2 files changed, 67 insertions, 48 deletions
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 42274bf4bc09..30e1699649b8 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -113,6 +113,8 @@ static void send_request_unmap(struct ibmvnic_adapter *, u8); static void send_login(struct ibmvnic_adapter *adapter); static void send_cap_queries(struct ibmvnic_adapter *adapter); static int init_sub_crq_irqs(struct ibmvnic_adapter *adapter); +static int ibmvnic_init(struct ibmvnic_adapter *); +static void ibmvnic_release_crq_queue(struct ibmvnic_adapter *); struct ibmvnic_stat { char name[ETH_GSTRING_LEN]; @@ -415,6 +417,12 @@ static int ibmvnic_open(struct net_device *netdev) int rc = 0; int i, j; + if (adapter->is_closed) { + rc = ibmvnic_init(adapter); + if (rc) + return rc; + } + rc = ibmvnic_login(netdev); if (rc) return rc; @@ -525,6 +533,7 @@ static int ibmvnic_open(struct net_device *netdev) ibmvnic_send_crq(adapter, &crq); netif_tx_start_all_queues(netdev); + adapter->is_closed = false; return 0; @@ -564,21 +573,12 @@ alloc_napi_failed: return -ENOMEM; } -static int ibmvnic_close(struct net_device *netdev) +static void ibmvnic_release_resources(struct ibmvnic_adapter *adapter) { - struct ibmvnic_adapter *adapter = netdev_priv(netdev); struct device *dev = &adapter->vdev->dev; - union ibmvnic_crq crq; + int tx_scrqs, rx_scrqs; int i; - adapter->closing = true; - - for (i = 0; i < adapter->req_rx_queues; i++) - napi_disable(&adapter->napi[i]); - - if (!adapter->failover) - netif_tx_stop_all_queues(netdev); - if (adapter->bounce_buffer) { if (!dma_mapping_error(dev, adapter->bounce_buffer_dma)) { dma_unmap_single(&adapter->vdev->dev, @@ -591,33 +591,70 @@ static int ibmvnic_close(struct net_device *netdev) adapter->bounce_buffer = NULL; } - memset(&crq, 0, sizeof(crq)); - crq.logical_link_state.first = IBMVNIC_CRQ_CMD; - crq.logical_link_state.cmd = LOGICAL_LINK_STATE; - crq.logical_link_state.link_state = IBMVNIC_LOGICAL_LNK_DN; - ibmvnic_send_crq(adapter, &crq); + tx_scrqs = be32_to_cpu(adapter->login_rsp_buf->num_txsubm_subcrqs); + for (i = 0; i < tx_scrqs; i++) { + struct ibmvnic_tx_pool *tx_pool = &adapter->tx_pool[i]; - for (i = 0; i < be32_to_cpu(adapter->login_rsp_buf->num_txsubm_subcrqs); - i++) { - kfree(adapter->tx_pool[i].tx_buff); - free_long_term_buff(adapter, - &adapter->tx_pool[i].long_term_buff); - kfree(adapter->tx_pool[i].free_map); + kfree(tx_pool->tx_buff); + free_long_term_buff(adapter, &tx_pool->long_term_buff); + kfree(tx_pool->free_map); } kfree(adapter->tx_pool); adapter->tx_pool = NULL; - for (i = 0; i < be32_to_cpu(adapter->login_rsp_buf->num_rxadd_subcrqs); - i++) { - free_rx_pool(adapter, &adapter->rx_pool[i]); - free_long_term_buff(adapter, - &adapter->rx_pool[i].long_term_buff); + rx_scrqs = be32_to_cpu(adapter->login_rsp_buf->num_rxadd_subcrqs); + for (i = 0; i < rx_scrqs; i++) { + struct ibmvnic_rx_pool *rx_pool = &adapter->rx_pool[i]; + + free_rx_pool(adapter, rx_pool); + free_long_term_buff(adapter, &rx_pool->long_term_buff); } kfree(adapter->rx_pool); adapter->rx_pool = NULL; - adapter->closing = false; + release_sub_crqs(adapter); + ibmvnic_release_crq_queue(adapter); + + if (adapter->debugfs_dir && !IS_ERR(adapter->debugfs_dir)) + debugfs_remove_recursive(adapter->debugfs_dir); + + if (adapter->stats_token) + dma_unmap_single(dev, adapter->stats_token, + sizeof(struct ibmvnic_statistics), + DMA_FROM_DEVICE); + + if (adapter->ras_comps) + dma_free_coherent(dev, adapter->ras_comp_num * + sizeof(struct ibmvnic_fw_component), + adapter->ras_comps, adapter->ras_comps_tok); + + kfree(adapter->ras_comp_int); +} + +static int ibmvnic_close(struct net_device *netdev) +{ + struct ibmvnic_adapter *adapter = netdev_priv(netdev); + union ibmvnic_crq crq; + int i; + + adapter->closing = true; + + for (i = 0; i < adapter->req_rx_queues; i++) + napi_disable(&adapter->napi[i]); + + if (!adapter->failover) + netif_tx_stop_all_queues(netdev); + memset(&crq, 0, sizeof(crq)); + crq.logical_link_state.first = IBMVNIC_CRQ_CMD; + crq.logical_link_state.cmd = LOGICAL_LINK_STATE; + crq.logical_link_state.link_state = IBMVNIC_LOGICAL_LNK_DN; + ibmvnic_send_crq(adapter, &crq); + + ibmvnic_release_resources(adapter); + + adapter->is_closed = true; + adapter->closing = false; return 0; } @@ -3891,6 +3928,7 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id) } netdev->mtu = adapter->req_mtu - ETH_HLEN; + adapter->is_closed = false; rc = register_netdev(netdev); if (rc) { @@ -3906,28 +3944,8 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id) static int ibmvnic_remove(struct vio_dev *dev) { struct net_device *netdev = dev_get_drvdata(&dev->dev); - struct ibmvnic_adapter *adapter = netdev_priv(netdev); unregister_netdev(netdev); - - release_sub_crqs(adapter); - - ibmvnic_release_crq_queue(adapter); - - if (adapter->debugfs_dir && !IS_ERR(adapter->debugfs_dir)) - debugfs_remove_recursive(adapter->debugfs_dir); - - dma_unmap_single(&dev->dev, adapter->stats_token, - sizeof(struct ibmvnic_statistics), DMA_FROM_DEVICE); - - if (adapter->ras_comps) - dma_free_coherent(&dev->dev, - adapter->ras_comp_num * - sizeof(struct ibmvnic_fw_component), - adapter->ras_comps, adapter->ras_comps_tok); - - kfree(adapter->ras_comp_int); - free_netdev(netdev); dev_set_drvdata(&dev->dev, NULL); diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h index 1993b42666f7..10ad259208cb 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.h +++ b/drivers/net/ethernet/ibm/ibmvnic.h @@ -1052,4 +1052,5 @@ struct ibmvnic_adapter { struct work_struct ibmvnic_xport; struct tasklet_struct tasklet; bool failover; + bool is_closed; }; |
