diff options
| author | Nathan Fontenot <nfont@linux.vnet.ibm.com> | 2017-03-30 09:49:23 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-31 01:58:43 +0300 |
| commit | 7bbc27a4961a7d5f8e4294929ce64d6c6e81e90c (patch) | |
| tree | 7dc06ffcb93f56569c857640411e2eb763b92a77 /drivers/net/ethernet/ibm | |
| parent | b510888f9639588d30d48eaaa32502cdb1c9e9e0 (diff) | |
| download | linux-7bbc27a4961a7d5f8e4294929ce64d6c6e81e90c.tar.xz | |
ibmvnic: Create init/release routines for stats token
Create an initialization and a release routine for the stats token used by
the ibmvnic driver.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ibm')
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmvnic.c | 46 |
1 files changed, 34 insertions, 12 deletions
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index f2d2f1f1ce1c..a2f972d72e34 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -302,6 +302,36 @@ static void replenish_pools(struct ibmvnic_adapter *adapter) } } +static void release_stats_token(struct ibmvnic_adapter *adapter) +{ + struct device *dev = &adapter->vdev->dev; + + if (!adapter->stats_token) + return; + + dma_unmap_single(dev, adapter->stats_token, + sizeof(struct ibmvnic_statistics), + DMA_FROM_DEVICE); + adapter->stats_token = 0; +} + +static int init_stats_token(struct ibmvnic_adapter *adapter) +{ + struct device *dev = &adapter->vdev->dev; + dma_addr_t stok; + + stok = dma_map_single(dev, &adapter->stats, + sizeof(struct ibmvnic_statistics), + DMA_FROM_DEVICE); + if (dma_mapping_error(dev, stok)) { + dev_err(dev, "Couldn't map stats buffer\n"); + return -1; + } + + adapter->stats_token = stok; + return 0; +} + static void release_rx_pools(struct ibmvnic_adapter *adapter) { struct ibmvnic_rx_pool *rx_pool; @@ -647,8 +677,6 @@ alloc_napi_failed: static void ibmvnic_release_resources(struct ibmvnic_adapter *adapter) { - struct device *dev = &adapter->vdev->dev; - release_bounce_buffer(adapter); release_tx_pools(adapter); release_rx_pools(adapter); @@ -656,10 +684,7 @@ static void ibmvnic_release_resources(struct ibmvnic_adapter *adapter) release_sub_crqs(adapter); release_crq_queue(adapter); - if (adapter->stats_token) - dma_unmap_single(dev, adapter->stats_token, - sizeof(struct ibmvnic_statistics), - DMA_FROM_DEVICE); + release_stats_token(adapter); } static int ibmvnic_close(struct net_device *netdev) @@ -3269,13 +3294,10 @@ static int ibmvnic_init(struct ibmvnic_adapter *adapter) return rc; } - adapter->stats_token = dma_map_single(dev, &adapter->stats, - sizeof(struct ibmvnic_statistics), - DMA_FROM_DEVICE); - if (dma_mapping_error(dev, adapter->stats_token)) { + rc = init_stats_token(adapter); + if (rc) { release_crq_queue(adapter); - dev_err(dev, "Couldn't map stats buffer\n"); - return -ENOMEM; + return rc; } init_completion(&adapter->init_done); |