From 211ec66068650287bac4cede230812a3ddc2ad59 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Tue, 2 Aug 2022 14:10:13 -0700 Subject: [PATCH] ntb: intel: add GNR support for Intel PCIe gen5 NTB mainline inclusion from mainline-v6.0-rc1 commit a914fc529f59dcd9f59633157cf7ee70822ebcac category: feature bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I8KPHC ------------------------------------- Intel-SIG: commit a914fc529f59 ntb: intel: add GNR support for Intel PCIe gen5 NTB. Backport Intel NTB GNR support patch. ------------------------------------- [ Upstream commit a914fc529f59dcd9f59633157cf7ee70822ebcac ] Add Intel Granite Rapids NTB PCI device ID and related enabling. Expectation is same hardware interface as Saphire Rapids Xeon platforms. Signed-off-by: Dave Jiang Acked-by: Allen Hubbe Signed-off-by: Jon Mason [ Zheng Wu: amend commit log ] Signed-off-by: Zheng Wu --- drivers/ntb/hw/intel/ntb_hw_gen1.c | 12 ++++++++---- drivers/ntb/hw/intel/ntb_hw_gen4.c | 2 +- drivers/ntb/hw/intel/ntb_hw_intel.h | 7 +++++++ 3 files changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/ntb/hw/intel/ntb_hw_gen1.c b/drivers/ntb/hw/intel/ntb_hw_gen1.c index 093dd20057b9..64dca75f97e5 100644 --- a/drivers/ntb/hw/intel/ntb_hw_gen1.c +++ b/drivers/ntb/hw/intel/ntb_hw_gen1.c @@ -763,7 +763,7 @@ static ssize_t ndev_debugfs_read(struct file *filp, char __user *ubuf, return ndev_ntb_debugfs_read(filp, ubuf, count, offp); else if (pdev_is_gen3(ndev->ntb.pdev)) return ndev_ntb3_debugfs_read(filp, ubuf, count, offp); - else if (pdev_is_gen4(ndev->ntb.pdev)) + else if (pdev_is_gen4(ndev->ntb.pdev) || pdev_is_gen5(ndev->ntb.pdev)) return ndev_ntb4_debugfs_read(filp, ubuf, count, offp); return -ENXIO; @@ -1882,7 +1882,7 @@ static int intel_ntb_pci_probe(struct pci_dev *pdev, rc = gen3_init_dev(ndev); if (rc) goto err_init_dev; - } else if (pdev_is_gen4(pdev)) { + } else if (pdev_is_gen4(pdev) || pdev_is_gen5(pdev)) { ndev->ntb.ops = &intel_ntb4_ops; rc = intel_ntb_init_pci(ndev, pdev); if (rc) @@ -1912,7 +1912,8 @@ static int intel_ntb_pci_probe(struct pci_dev *pdev, err_register: ndev_deinit_debugfs(ndev); - if (pdev_is_gen1(pdev) || pdev_is_gen3(pdev) || pdev_is_gen4(pdev)) + if (pdev_is_gen1(pdev) || pdev_is_gen3(pdev) || + pdev_is_gen4(pdev) || pdev_is_gen5(pdev)) xeon_deinit_dev(ndev); err_init_dev: intel_ntb_deinit_pci(ndev); @@ -1928,7 +1929,8 @@ static void intel_ntb_pci_remove(struct pci_dev *pdev) ntb_unregister_device(&ndev->ntb); ndev_deinit_debugfs(ndev); - if (pdev_is_gen1(pdev) || pdev_is_gen3(pdev) || pdev_is_gen4(pdev)) + if (pdev_is_gen1(pdev) || pdev_is_gen3(pdev) || + pdev_is_gen4(pdev) || pdev_is_gen5(pdev)) xeon_deinit_dev(ndev); intel_ntb_deinit_pci(ndev); kfree(ndev); @@ -2055,6 +2057,8 @@ static const struct pci_device_id intel_ntb_pci_tbl[] = { /* GEN4 */ {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_ICX)}, + /* GEN5 PCIe */ + {PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_NTB_B2B_GNR)}, {0} }; MODULE_DEVICE_TABLE(pci, intel_ntb_pci_tbl); diff --git a/drivers/ntb/hw/intel/ntb_hw_gen4.c b/drivers/ntb/hw/intel/ntb_hw_gen4.c index 4081fc538ff4..22cac7975b3c 100644 --- a/drivers/ntb/hw/intel/ntb_hw_gen4.c +++ b/drivers/ntb/hw/intel/ntb_hw_gen4.c @@ -197,7 +197,7 @@ int gen4_init_dev(struct intel_ntb_dev *ndev) ppd1 = ioread32(ndev->self_mmio + GEN4_PPD1_OFFSET); if (pdev_is_ICX(pdev)) ndev->ntb.topo = gen4_ppd_topo(ndev, ppd1); - else if (pdev_is_SPR(pdev)) + else if (pdev_is_SPR(pdev) || pdev_is_gen5(pdev)) ndev->ntb.topo = spr_ppd_topo(ndev, ppd1); dev_dbg(&pdev->dev, "ppd %#x topo %s\n", ppd1, ntb_topo_string(ndev->ntb.topo)); diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.h b/drivers/ntb/hw/intel/ntb_hw_intel.h index 05e2335c9596..6fe3dd246a46 100644 --- a/drivers/ntb/hw/intel/ntb_hw_intel.h +++ b/drivers/ntb/hw/intel/ntb_hw_intel.h @@ -73,6 +73,7 @@ #define PCI_DEVICE_ID_INTEL_NTB_SS_BDX 0x6F0F #define PCI_DEVICE_ID_INTEL_NTB_B2B_SKX 0x201C #define PCI_DEVICE_ID_INTEL_NTB_B2B_ICX 0x347e +#define PCI_DEVICE_ID_INTEL_NTB_B2B_GNR 0x0db4 /* Ntb control and link status */ #define NTB_CTL_CFG_LOCK BIT(0) @@ -231,4 +232,10 @@ static inline int pdev_is_gen4(struct pci_dev *pdev) return 0; } + +static inline int pdev_is_gen5(struct pci_dev *pdev) +{ + return pdev->device == PCI_DEVICE_ID_INTEL_NTB_B2B_GNR; +} + #endif -- Gitee