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stmmac_pci.c


products/Sources/formale Sprachen/C/Linux/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c

// SPDX-License-Identifier: GPL-2.0-only /******************************************************************************* This contains the functions to handle the pci driver. Copyright (C) 2011-2012 Vayavya Labs Pvt Ltd Author: Rayagond Kokatanur Author: Giuseppe Cavallaro *******************************************************************************/ #include #include #include #include "stmmac.h" struct stmmac_pci_info { int (*setup)(struct pci_dev *pdev, struct plat_stmmacenet_data *plat); }; static void common_default_data(struct plat_stmmacenet_data *plat) { plat->clk_csr = 2; /* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */ plat->has_gmac = 1; plat->force_sf_dma_mode = 1; plat->mdio_bus_data->needs_reset = true; /* Set default value for multicast hash bins */ plat->multicast_filter_bins = HASH_TABLE_SIZE; /* Set default value for unicast filter entries */ plat->unicast_filter_entries = 1; /* Set the maxmtu to a default of JUMBO_LEN */ plat->maxmtu = JUMBO_LEN; /* Set default number of RX and TX queues to use */ plat->tx_queues_to_use = 1; plat->rx_queues_to_use = 1; /* Disable Priority config by default */ plat->tx_queues_cfg[0].use_prio = false; plat->rx_queues_cfg[0].use_prio = false; /* Disable RX queues routing by default */ plat->rx_queues_cfg[0].pkt_route = 0x0; } static int stmmac_default_data(struct pci_dev *pdev, struct plat_stmmacenet_data *plat) { /* Set common default data first */ common_default_data(plat); plat->bus_id = 1; plat->phy_addr = 0; plat->phy_interface = PHY_INTERFACE_MODE_GMII; plat->dma_cfg->pbl = 32; plat->dma_cfg->pblx8 = true; /* TODO: AXI */ return 0; } static const struct stmmac_pci_info stmmac_pci_info = { .setup = stmmac_default_data, }; static int snps_gmac5_default_data(struct pci_dev *pdev, struct plat_stmmacenet_data *plat) { int i; plat->clk_csr = 5; plat->has_gmac4 = 1; plat->force_sf_dma_mode = 1; plat->flags |= STMMAC_FLAG_TSO_EN; plat->pmt = 1; /* Set default value for multicast hash bins */ plat->multicast_filter_bins = HASH_TABLE_SIZE; /* Set default value for unicast filter entries */ plat->unicast_filter_entries = 1; /* Set the maxmtu to a default of JUMBO_LEN */ plat->maxmtu = JUMBO_LEN; /* Set default number of RX and TX queues to use */ plat->tx_queues_to_use = 4; plat->rx_queues_to_use = 4; plat->tx_sched_algorithm = MTL_TX_ALGORITHM_WRR; for (i = 0; i < plat->tx_queues_to_use; i++) { plat->tx_queues_cfg[i].use_prio = false; plat->tx_queues_cfg[i].mode_to_use = MTL_QUEUE_DCB; plat->tx_queues_cfg[i].weight = 25; if (i > 0) plat->tx_queues_cfg[i].tbs_en = 1; } plat->rx_sched_algorithm = MTL_RX_ALGORITHM_SP; for (i = 0; i < plat->rx_queues_to_use; i++) { plat->rx_queues_cfg[i].use_prio = false; plat->rx_queues_cfg[i].mode_to_use = MTL_QUEUE_DCB; plat->rx_queues_cfg[i].pkt_route = 0x0; plat->rx_queues_cfg[i].chan = i; } plat->bus_id = 1; plat->phy_addr = -1; plat->phy_interface = PHY_INTERFACE_MODE_GMII; plat->dma_cfg->pbl = 32; plat->dma_cfg->pblx8 = true; /* Axi Configuration */ plat->axi = devm_kzalloc(&pdev->dev, sizeof(*plat->axi), GFP_KERNEL); if (!plat->axi) return -ENOMEM; plat->axi->axi_wr_osr_lmt = 31; plat->axi->axi_rd_osr_lmt = 31; plat->axi->axi_fb = false; plat->axi->axi_blen[0] = 4; plat->axi->axi_blen[1] = 8; plat->axi->axi_blen[2] = 16; plat->axi->axi_blen[3] = 32; return 0; } static const struct stmmac_pci_info snps_gmac5_pci_info = { .setup = snps_gmac5_default_data, }; /** * stmmac_pci_probe * * @pdev: pci device pointer * @id: pointer to table of device id/id's. * * Description: This probing function gets called for all PCI devices which * match the ID table and are not "owned" by other driver yet. This function * gets passed a "struct pci_dev *" for each device whose entry in the ID table * matches the device. The probe functions returns zero when the driver choose * to take "ownership" of the device or an error code(-ve no) otherwise. */ static int stmmac_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct stmmac_pci_info *info = (struct stmmac_pci_info *)id->driver_data; struct plat_stmmacenet_data *plat; struct stmmac_resources res = {}; int ret; int i; plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL); if (!plat) return -ENOMEM; plat->mdio_bus_data = devm_kzalloc(&pdev->dev, sizeof(*plat->mdio_bus_data), GFP_KERNEL); if (!plat->mdio_bus_data) return -ENOMEM; plat->dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*plat->dma_cfg), GFP_KERNEL); if (!plat->dma_cfg) return -ENOMEM; plat->safety_feat_cfg = devm_kzalloc(&pdev->dev, sizeof(*plat->safety_feat_cfg), GFP_KERNEL); if (!plat->safety_feat_cfg) return -ENOMEM; /* Enable pci device */ ret = pcim_enable_device(pdev); if (ret) { dev_err(&pdev->dev, "%s: ERROR: failed to enable device\n", __func__); return ret; } /* Get the base address of device */ for (i = 0; i < PCI_STD_NUM_BARS; i++) { if (pci_resource_len(pdev, i) == 0) continue; res.addr = pcim_iomap_region(pdev, i, STMMAC_RESOURCE_NAME); if (IS_ERR(res.addr)) return PTR_ERR(res.addr); break; } pci_set_master(pdev); ret = info->setup(pdev, plat); if (ret) return ret; res.wol_irq = pdev->irq; res.irq = pdev->irq; plat->safety_feat_cfg->tsoee = 1; plat->safety_feat_cfg->mrxpee = 1; plat->safety_feat_cfg->mestee = 1; plat->safety_feat_cfg->mrxee = 1; plat->safety_feat_cfg->mtxee = 1; plat->safety_feat_cfg->epsi = 1; plat->safety_feat_cfg->edpp = 1; plat->safety_feat_cfg->prtyen = 1; plat->safety_feat_cfg->tmouten = 1; return stmmac_dvr_probe(&pdev->dev, plat, &res); } /** * stmmac_pci_remove * * @pdev: platform device pointer * Description: this function calls the main to free the net resources. */ static void stmmac_pci_remove(struct pci_dev *pdev) { stmmac_dvr_remove(&pdev->dev); } static int __maybe_unused stmmac_pci_suspend(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); int ret; ret = stmmac_suspend(dev); if (ret) return ret; ret = pci_save_state(pdev); if (ret) return ret; pci_disable_device(pdev); pci_wake_from_d3(pdev, true); return 0; } static int __maybe_unused stmmac_pci_resume(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); int ret; pci_restore_state(pdev); pci_set_power_state(pdev, PCI_D0); ret = pci_enable_device(pdev); if (ret) return ret; pci_set_master(pdev); return stmmac_resume(dev); } static SIMPLE_DEV_PM_OPS(stmmac_pm_ops, stmmac_pci_suspend, stmmac_pci_resume); /* synthetic ID, no official vendor */ #define PCI_VENDOR_ID_STMMAC 0x0700 #define PCI_DEVICE_ID_STMMAC_STMMAC 0x1108 #define PCI_DEVICE_ID_SYNOPSYS_GMAC5_ID 0x7102 static const struct pci_device_id stmmac_id_table[] = { { PCI_DEVICE_DATA(STMMAC, STMMAC, &stmmac_pci_info) }, { PCI_DEVICE_DATA(STMICRO, MAC, &stmmac_pci_info) }, { PCI_DEVICE_DATA(SYNOPSYS, GMAC5_ID, &snps_gmac5_pci_info) }, {} }; MODULE_DEVICE_TABLE(pci, stmmac_id_table); static struct pci_driver stmmac_pci_driver = { .name = STMMAC_RESOURCE_NAME, .id_table = stmmac_id_table, .probe = stmmac_pci_probe, .remove = stmmac_pci_remove, .driver = { .pm = &stmmac_pm_ops, }, }; module_pci_driver(stmmac_pci_driver); MODULE_DESCRIPTION("STMMAC 10/100/1000 Ethernet PCI driver"); MODULE_AUTHOR("Rayagond Kokatanur "); MODULE_AUTHOR("Giuseppe Cavallaro "); MODULE_LICENSE("GPL");

                                                                                                                                                                                                                                                                                                                                                                                                     

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