> From: Intel-wired-lan <intel-wired-lan-bounces@xxxxxxxxxx> On Behalf Of > Christophe JAILLET > Sent: Saturday, July 18, 2020 4:56 AM > To: kuba@xxxxxxxxxx; davem@xxxxxxxxxxxxx; Kirsher, Jeffrey T > <jeffrey.t.kirsher@xxxxxxxxx> > Cc: netdev@xxxxxxxxxxxxxxx; kernel-janitors@xxxxxxxxxxxxxxx; Christophe > JAILLET <christophe.jaillet@xxxxxxxxxx>; intel-wired-lan@xxxxxxxxxxxxxxxx; > linux-kernel@xxxxxxxxxxxxxxx > Subject: [Intel-wired-lan] [PATCH] e100: switch from 'pci_' to 'dma_' API > > The wrappers in include/linux/pci-dma-compat.h should go away. > > The patch has been generated with the coccinelle script below and has been > hand modified to replace GFP_ with a correct flag. > It has been compile tested. > > When memory is allocated in 'e100_alloc()', GFP_KERNEL can be used because > it is only called from the probe function and no lock is acquired. > > > @@ > @@ > - PCI_DMA_BIDIRECTIONAL > + DMA_BIDIRECTIONAL > > @@ > @@ > - PCI_DMA_TODEVICE > + DMA_TO_DEVICE > > @@ > @@ > - PCI_DMA_FROMDEVICE > + DMA_FROM_DEVICE > > @@ > @@ > - PCI_DMA_NONE > + DMA_NONE > > @@ > expression e1, e2, e3; > @@ > - pci_alloc_consistent(e1, e2, e3) > + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) > > @@ > expression e1, e2, e3; > @@ > - pci_zalloc_consistent(e1, e2, e3) > + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) > > @@ > expression e1, e2, e3, e4; > @@ > - pci_free_consistent(e1, e2, e3, e4) > + dma_free_coherent(&e1->dev, e2, e3, e4) > > @@ > expression e1, e2, e3, e4; > @@ > - pci_map_single(e1, e2, e3, e4) > + dma_map_single(&e1->dev, e2, e3, e4) > > @@ > expression e1, e2, e3, e4; > @@ > - pci_unmap_single(e1, e2, e3, e4) > + dma_unmap_single(&e1->dev, e2, e3, e4) > > @@ > expression e1, e2, e3, e4, e5; > @@ > - pci_map_page(e1, e2, e3, e4, e5) > + dma_map_page(&e1->dev, e2, e3, e4, e5) > > @@ > expression e1, e2, e3, e4; > @@ > - pci_unmap_page(e1, e2, e3, e4) > + dma_unmap_page(&e1->dev, e2, e3, e4) > > @@ > expression e1, e2, e3, e4; > @@ > - pci_map_sg(e1, e2, e3, e4) > + dma_map_sg(&e1->dev, e2, e3, e4) > > @@ > expression e1, e2, e3, e4; > @@ > - pci_unmap_sg(e1, e2, e3, e4) > + dma_unmap_sg(&e1->dev, e2, e3, e4) > > @@ > expression e1, e2, e3, e4; > @@ > - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) > + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) > > @@ > expression e1, e2, e3, e4; > @@ > - pci_dma_sync_single_for_device(e1, e2, e3, e4) > + dma_sync_single_for_device(&e1->dev, e2, e3, e4) > > @@ > expression e1, e2, e3, e4; > @@ > - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) > + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) > > @@ > expression e1, e2, e3, e4; > @@ > - pci_dma_sync_sg_for_device(e1, e2, e3, e4) > + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) > > @@ > expression e1, e2; > @@ > - pci_dma_mapping_error(e1, e2) > + dma_mapping_error(&e1->dev, e2) > > @@ > expression e1, e2; > @@ > - pci_set_dma_mask(e1, e2) > + dma_set_mask(&e1->dev, e2) > > @@ > expression e1, e2; > @@ > - pci_set_consistent_dma_mask(e1, e2) > + dma_set_coherent_mask(&e1->dev, e2) > > Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> > --- > If needed, see post from Christoph Hellwig on the kernel-janitors ML: > https://marc.info/?l=kernel-janitors&m=158745678307186&w=4 > --- > drivers/net/ethernet/intel/e100.c | 92 ++++++++++++++++--------------- > 1 file changed, 49 insertions(+), 43 deletions(-) > And I finally managed to get a couple functional e100 adapters up and running again. Tested-by: Aaron Brown <aaron.f.brown@xxxxxxxxx>
