diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfpcore')
7 files changed, 107 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..0d1d39edbbae 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); } @@ -622,7 +617,8 @@ 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: @@ -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, "Netronome 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); diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.h index 6d1bffa6eac6..097660b673db 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.h +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp6000_pcie.h @@ -11,6 +11,7 @@ #include "nfp_cpp.h" -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); #endif /* NFP6000_PCIE_H */ diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h index 2dd0f5842873..3d379e937184 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpp.h @@ -32,10 +32,6 @@ #define PCI_64BIT_BAR_COUNT 3 -/* NFP hardware vendor/device ids. - */ -#define PCI_DEVICE_ID_NETRONOME_NFP3800 0x3800 - #define NFP_CPP_NUM_TARGETS 16 /* Max size of area it should be safe to request */ #define NFP_CPP_SAFE_AREA_SIZE SZ_2M diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpplib.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpplib.c index 85734c6badf5..508ae6b571ca 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpplib.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cpplib.c @@ -22,6 +22,7 @@ #include "nfp6000/nfp_xpb.h" /* NFP6000 PL */ +#define NFP_PL_DEVICE_PART_NFP6000 0x6200 #define NFP_PL_DEVICE_ID 0x00000004 #define NFP_PL_DEVICE_ID_MASK GENMASK(7, 0) #define NFP_PL_DEVICE_PART_MASK GENMASK(31, 16) @@ -130,8 +131,12 @@ int nfp_cpp_model_autodetect(struct nfp_cpp *cpp, u32 *model) return err; *model = reg & NFP_PL_DEVICE_MODEL_MASK; - if (*model & NFP_PL_DEVICE_ID_MASK) - *model -= 0x10; + /* Disambiguate the NFP4000/NFP5000/NFP6000 chips */ + if (FIELD_GET(NFP_PL_DEVICE_PART_MASK, reg) == + NFP_PL_DEVICE_PART_NFP6000) { + if (*model & NFP_PL_DEVICE_ID_MASK) + *model -= 0x10; + } return 0; } diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_dev.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_dev.c new file mode 100644 index 000000000000..28384d6d1c6f --- /dev/null +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_dev.c @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* Copyright (C) 2019 Netronome Systems, Inc. */ + +#include <linux/dma-mapping.h> +#include <linux/kernel.h> +#include <linux/sizes.h> + +#include "nfp_dev.h" + +const struct nfp_dev_info nfp_dev_info[NFP_DEV_CNT] = { + [NFP_DEV_NFP3800] = { + .dma_mask = DMA_BIT_MASK(40), + .qc_idx_mask = GENMASK(8, 0), + .qc_addr_offset = 0x400000, + .min_qc_size = 512, + .max_qc_size = SZ_64K, + + .chip_names = "NFP3800", + .pcie_cfg_expbar_offset = 0x0a00, + .pcie_expl_offset = 0xd000, + .qc_area_sz = 0x100000, + }, + [NFP_DEV_NFP3800_VF] = { + .dma_mask = DMA_BIT_MASK(40), + .qc_idx_mask = GENMASK(8, 0), + .qc_addr_offset = 0, + .min_qc_size = 512, + .max_qc_size = SZ_64K, + }, + [NFP_DEV_NFP6000] = { + .dma_mask = DMA_BIT_MASK(40), + .qc_idx_mask = GENMASK(7, 0), + .qc_addr_offset = 0x80000, + .min_qc_size = 256, + .max_qc_size = SZ_256K, + + .chip_names = "NFP4000/NFP5000/NFP6000", + .pcie_cfg_expbar_offset = 0x0400, + .pcie_expl_offset = 0x1000, + .qc_area_sz = 0x80000, + }, + [NFP_DEV_NFP6000_VF] = { + .dma_mask = DMA_BIT_MASK(40), + .qc_idx_mask = GENMASK(7, 0), + .qc_addr_offset = 0, + .min_qc_size = 256, + .max_qc_size = SZ_256K, + }, +}; diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_dev.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_dev.h new file mode 100644 index 000000000000..d4189869cf7b --- /dev/null +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_dev.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ +/* Copyright (C) 2019 Netronome Systems, Inc. */ + +#ifndef _NFP_DEV_H_ +#define _NFP_DEV_H_ + +#include <linux/types.h> + +enum nfp_dev_id { + NFP_DEV_NFP3800, + NFP_DEV_NFP3800_VF, + NFP_DEV_NFP6000, + NFP_DEV_NFP6000_VF, + NFP_DEV_CNT, +}; + +struct nfp_dev_info { + /* Required fields */ + u64 dma_mask; + u32 qc_idx_mask; + u32 qc_addr_offset; + u32 min_qc_size; + u32 max_qc_size; + + /* PF-only fields */ + const char *chip_names; + u32 pcie_cfg_expbar_offset; + u32 pcie_expl_offset; + u32 qc_area_sz; +}; + +extern const struct nfp_dev_info nfp_dev_info[NFP_DEV_CNT]; + +#endif diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c index 10e7d8b21c46..730fea214b8a 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c @@ -513,7 +513,7 @@ nfp_nsp_command_buf_dma_sg(struct nfp_nsp *nsp, dma_size = BIT_ULL(dma_order); nseg = DIV_ROUND_UP(max_size, chunk_size); - chunks = kzalloc(array_size(sizeof(*chunks), nseg), GFP_KERNEL); + chunks = kcalloc(nseg, sizeof(*chunks), GFP_KERNEL); if (!chunks) return -ENOMEM; |