diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c | 45 |
1 files changed, 22 insertions, 23 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c index 252fe06f58aa..33b4c2856316 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.c @@ -28,6 +28,7 @@ #include <linux/pci.h> #include "nfp_cpp.h" +#include "nfp_dev.h" #include "nfp6000/nfp6000.h" @@ -100,11 +101,7 @@ #define NFP_PCIE_P2C_GENERAL_TOKEN_OFFSET(bar, x) ((x) << ((bar)->bitsize - 4)) #define NFP_PCIE_P2C_GENERAL_SIZE(bar) (1 << ((bar)->bitsize - 4)) -#define NFP_PCIE_CFG_BAR_PCIETOCPPEXPANSIONBAR(bar, slot) \ - (0x400 + ((bar) * 8 + (slot)) * 4) - -#define NFP_PCIE_CPP_BAR_PCIETOCPPEXPANSIONBAR(bar, slot) \ - (((bar) * 8 + (slot)) * 4) +#define NFP_PCIE_P2C_EXPBAR_OFFSET(bar_index) ((bar_index) * 4) /* The number of explicit BARs to reserve. * Minimum is 0, maximum is 4 on the NFP6000. @@ -145,6 +142,7 @@ struct nfp_bar { struct nfp6000_pcie { struct pci_dev *pdev; struct device *dev; + const struct nfp_dev_info *dev_info; /* PCI BAR management */ spinlock_t bar_lock; /* Protect the PCI2CPP BAR cache */ @@ -269,19 +267,16 @@ compute_bar(const struct nfp6000_pcie *nfp, const struct nfp_bar *bar, static int nfp6000_bar_write(struct nfp6000_pcie *nfp, struct nfp_bar *bar, u32 newcfg) { - int base, slot; - int xbar; + unsigned int xbar; - base = bar->index >> 3; - slot = bar->index & 7; + xbar = NFP_PCIE_P2C_EXPBAR_OFFSET(bar->index); if (nfp->iomem.csr) { - xbar = NFP_PCIE_CPP_BAR_PCIETOCPPEXPANSIONBAR(base, slot); writel(newcfg, nfp->iomem.csr + xbar); /* Readback to ensure BAR is flushed */ readl(nfp->iomem.csr + xbar); } else { - xbar = NFP_PCIE_CFG_BAR_PCIETOCPPEXPANSIONBAR(base, slot); + xbar += nfp->dev_info->pcie_cfg_expbar_offset; pci_write_config_dword(nfp->pdev, xbar, newcfg); } @@ -622,16 +617,17 @@ static int enable_bars(struct nfp6000_pcie *nfp, u16 interface) nfp6000_bar_write(nfp, bar, barcfg_msix_general); - nfp->expl.data = bar->iomem + NFP_PCIE_SRAM + 0x1000; + nfp->expl.data = bar->iomem + NFP_PCIE_SRAM + + nfp->dev_info->pcie_expl_offset; switch (nfp->pdev->device) { - case PCI_DEVICE_ID_NETRONOME_NFP3800: + case PCI_DEVICE_ID_NFP3800: pf = nfp->pdev->devfn & 7; nfp->iomem.csr = bar->iomem + NFP_PCIE_BAR(pf); break; - case PCI_DEVICE_ID_NETRONOME_NFP4000: - case PCI_DEVICE_ID_NETRONOME_NFP5000: - case PCI_DEVICE_ID_NETRONOME_NFP6000: + case PCI_DEVICE_ID_NFP4000: + case PCI_DEVICE_ID_NFP5000: + case PCI_DEVICE_ID_NFP6000: nfp->iomem.csr = bar->iomem + NFP_PCIE_BAR(0); break; default: @@ -644,12 +640,12 @@ static int enable_bars(struct nfp6000_pcie *nfp, u16 interface) } switch (nfp->pdev->device) { - case PCI_DEVICE_ID_NETRONOME_NFP3800: + case PCI_DEVICE_ID_NFP3800: expl_groups = 1; break; - case PCI_DEVICE_ID_NETRONOME_NFP4000: - case PCI_DEVICE_ID_NETRONOME_NFP5000: - case PCI_DEVICE_ID_NETRONOME_NFP6000: + case PCI_DEVICE_ID_NFP4000: + case PCI_DEVICE_ID_NFP5000: + case PCI_DEVICE_ID_NFP6000: expl_groups = 4; break; default: @@ -1306,18 +1302,20 @@ static const struct nfp_cpp_operations nfp6000_pcie_ops = { /** * nfp_cpp_from_nfp6000_pcie() - Build a NFP CPP bus from a NFP6000 PCI device * @pdev: NFP6000 PCI device + * @dev_info: NFP ASIC params * * Return: NFP CPP handle */ -struct nfp_cpp *nfp_cpp_from_nfp6000_pcie(struct pci_dev *pdev) +struct nfp_cpp * +nfp_cpp_from_nfp6000_pcie(struct pci_dev *pdev, const struct nfp_dev_info *dev_info) { struct nfp6000_pcie *nfp; u16 interface; int err; /* Finished with card initialization. */ - dev_info(&pdev->dev, - "Netronome Flow Processor NFP4000/NFP5000/NFP6000 PCIe Card Probe\n"); + dev_info(&pdev->dev, "Network Flow Processor %s PCIe Card Probe\n", + dev_info->chip_names); pcie_print_link_status(pdev); nfp = kzalloc(sizeof(*nfp), GFP_KERNEL); @@ -1328,6 +1326,7 @@ struct nfp_cpp *nfp_cpp_from_nfp6000_pcie(struct pci_dev *pdev) nfp->dev = &pdev->dev; nfp->pdev = pdev; + nfp->dev_info = dev_info; init_waitqueue_head(&nfp->bar_waiters); spin_lock_init(&nfp->bar_lock); |