diff options
Diffstat (limited to 'drivers/vdpa/solidrun/snet_main.c')
| -rw-r--r-- | drivers/vdpa/solidrun/snet_main.c | 57 |
1 files changed, 28 insertions, 29 deletions
diff --git a/drivers/vdpa/solidrun/snet_main.c b/drivers/vdpa/solidrun/snet_main.c index c8b74980dbd1..55ec51c17ab3 100644 --- a/drivers/vdpa/solidrun/snet_main.c +++ b/drivers/vdpa/solidrun/snet_main.c @@ -556,36 +556,38 @@ static const struct vdpa_config_ops snet_config_ops = { static int psnet_open_pf_bar(struct pci_dev *pdev, struct psnet *psnet) { char *name; - int ret, i, mask = 0; + unsigned short i; + bool bars_found = false; + + name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "psnet[%s]-bars", pci_name(pdev)); + if (!name) + return -ENOMEM; + /* We don't know which BAR will be used to communicate.. * We will map every bar with len > 0. * * Later, we will discover the BAR and unmap all other BARs. */ for (i = 0; i < PCI_STD_NUM_BARS; i++) { - if (pci_resource_len(pdev, i)) - mask |= (1 << i); - } + void __iomem *io; - /* No BAR can be used.. */ - if (!mask) { - SNET_ERR(pdev, "Failed to find a PCI BAR\n"); - return -ENODEV; - } + if (pci_resource_len(pdev, i) == 0) + continue; - name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "psnet[%s]-bars", pci_name(pdev)); - if (!name) - return -ENOMEM; + io = pcim_iomap_region(pdev, i, name); + if (IS_ERR(io)) { + SNET_ERR(pdev, "Failed to request and map PCI BARs\n"); + return PTR_ERR(io); + } - ret = pcim_iomap_regions(pdev, mask, name); - if (ret) { - SNET_ERR(pdev, "Failed to request and map PCI BARs\n"); - return ret; + psnet->bars[i] = io; + bars_found = true; } - for (i = 0; i < PCI_STD_NUM_BARS; i++) { - if (mask & (1 << i)) - psnet->bars[i] = pcim_iomap_table(pdev)[i]; + /* No BAR can be used.. */ + if (!bars_found) { + SNET_ERR(pdev, "Failed to find a PCI BAR\n"); + return -ENODEV; } return 0; @@ -594,20 +596,20 @@ static int psnet_open_pf_bar(struct pci_dev *pdev, struct psnet *psnet) static int snet_open_vf_bar(struct pci_dev *pdev, struct snet *snet) { char *name; - int ret; + void __iomem *io; name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "snet[%s]-bars", pci_name(pdev)); if (!name) return -ENOMEM; /* Request and map BAR */ - ret = pcim_iomap_regions(pdev, BIT(snet->psnet->cfg.vf_bar), name); - if (ret) { + io = pcim_iomap_region(pdev, snet->psnet->cfg.vf_bar, name); + if (IS_ERR(io)) { SNET_ERR(pdev, "Failed to request and map PCI BAR for a VF\n"); - return ret; + return PTR_ERR(io); } - snet->bar = pcim_iomap_table(pdev)[snet->psnet->cfg.vf_bar]; + snet->bar = io; return 0; } @@ -656,15 +658,12 @@ static int psnet_detect_bar(struct psnet *psnet, u32 off) static void psnet_unmap_unused_bars(struct pci_dev *pdev, struct psnet *psnet) { - int i, mask = 0; + unsigned short i; for (i = 0; i < PCI_STD_NUM_BARS; i++) { if (psnet->bars[i] && i != psnet->barno) - mask |= (1 << i); + pcim_iounmap_region(pdev, i); } - - if (mask) - pcim_iounmap_regions(pdev, mask); } /* Read SNET config from PCI BAR */ |