diff options
| author |   Sasha Neftin <sasha.neftin@intel.com> | 2019-11-05 11:44:13 +0200 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-12-31 11:17:25 -0800 |
| commit | 21da01fd3bb1124b46e6b15657de36dffcc58af9 (patch) | |
| tree | f8a32c684aa8e8791f34207814710a9ef2f5fa40 /drivers/net/ethernet/intel/igc/igc_main.c | |
| parent | igc: Add scatter gather support (diff) | |
| download | linux-dev-21da01fd3bb1124b46e6b15657de36dffcc58af9.tar.xz linux-dev-21da01fd3bb1124b46e6b15657de36dffcc58af9.zip | |
igc: Improve the DMA mapping flow
Improve the probe flow and set both the DMA mask and the coherent
to the same thing. Make the flow optimized and cleared.
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_main.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index 75dcaa87d06b..91acce2e1d1c 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -4345,32 +4345,26 @@ static int igc_probe(struct pci_dev *pdev, struct net_device *netdev; struct igc_hw *hw; const struct igc_info *ei = igc_info_tbl[ent->driver_data]; - int err; + int err, pci_using_dac; err = pci_enable_device_mem(pdev); if (err) return err; - err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); + pci_using_dac = 0; + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); if (!err) { - err = dma_set_coherent_mask(&pdev->dev, - DMA_BIT_MASK(64)); + pci_using_dac = 1; } else { - err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); if (err) { - err = dma_set_coherent_mask(&pdev->dev, - DMA_BIT_MASK(32)); - if (err) { - dev_err(&pdev->dev, "igc: Wrong DMA config\n"); - goto err_dma; - } + dev_err(&pdev->dev, + "No usable DMA configuration, aborting\n"); + goto err_dma; } } - err = pci_request_selected_regions(pdev, - pci_select_bars(pdev, - IORESOURCE_MEM), - igc_driver_name); + err = pci_request_mem_regions(pdev, igc_driver_name); if (err) goto err_pci_reg; |