diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c | 115 |
1 files changed, 59 insertions, 56 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c b/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c index d065235034d4..39407f7cc586 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2015 Netronome Systems, Inc. + * Copyright (C) 2015-2017 Netronome Systems, Inc. * * This software is dual licensed under the GNU General License Version 2, * June 1991 as shown in the file COPYING in the top-level directory of this @@ -45,9 +45,27 @@ #include "nfp_net_ctrl.h" #include "nfp_net.h" +#include "nfp_main.h" + +/** + * struct nfp_net_vf - NFP VF-specific device structure + * @nn: NFP Net structure for this device + * @irq_entries: Pre-allocated array of MSI-X entries + * @q_bar: Pointer to mapped QC memory (NULL if TX/RX mapped directly) + * @ddir: Per-device debugfs directory + */ +struct nfp_net_vf { + struct nfp_net *nn; + + struct msix_entry irq_entries[NFP_NET_NON_Q_VECTORS + + NFP_NET_MAX_TX_RINGS]; + u8 __iomem *q_bar; + + struct dentry *ddir; +}; + +static const char nfp_net_driver_name[] = "nfp_netvf"; -const char nfp_net_driver_name[] = "nfp_netvf"; -const char nfp_net_driver_version[] = "0.1"; #define PCI_DEVICE_NFP6000VF 0x6003 static const struct pci_device_id nfp_netvf_pci_device_ids[] = { { PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_NFP6000VF, @@ -82,15 +100,22 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev, u32 tx_bar_off, rx_bar_off; u32 tx_bar_sz, rx_bar_sz; int tx_bar_no, rx_bar_no; + struct nfp_net_vf *vf; + unsigned int num_irqs; u8 __iomem *ctrl_bar; struct nfp_net *nn; u32 startq; int stride; int err; + vf = kzalloc(sizeof(*vf), GFP_KERNEL); + if (!vf) + return -ENOMEM; + pci_set_drvdata(pdev, vf); + err = pci_enable_device_mem(pdev); if (err) - return err; + goto err_free_vf; err = pci_request_regions(pdev, nfp_net_driver_name); if (err) { @@ -182,6 +207,7 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev, err = PTR_ERR(nn); goto err_ctrl_unmap; } + vf->nn = nn; nn->fw_ver = fw_ver; nn->ctrl_bar = ctrl_bar; @@ -205,17 +231,17 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev, bar_sz = (rx_bar_off + rx_bar_sz) - bar_off; map_addr = pci_resource_start(pdev, tx_bar_no) + bar_off; - nn->q_bar = ioremap_nocache(map_addr, bar_sz); - if (!nn->q_bar) { + vf->q_bar = ioremap_nocache(map_addr, bar_sz); + if (!vf->q_bar) { nn_err(nn, "Failed to map resource %d\n", tx_bar_no); err = -EIO; goto err_netdev_free; } /* TX queues */ - nn->tx_bar = nn->q_bar + (tx_bar_off - bar_off); + nn->tx_bar = vf->q_bar + (tx_bar_off - bar_off); /* RX queues */ - nn->rx_bar = nn->q_bar + (rx_bar_off - bar_off); + nn->rx_bar = vf->q_bar + (rx_bar_off - bar_off); } else { resource_size_t map_addr; @@ -240,12 +266,15 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev, nfp_netvf_get_mac_addr(nn); - err = nfp_net_irqs_alloc(nn); - if (!err) { + num_irqs = nfp_net_irqs_alloc(pdev, vf->irq_entries, + NFP_NET_MIN_PORT_IRQS, + NFP_NET_NON_Q_VECTORS + nn->num_r_vecs); + if (!num_irqs) { nn_warn(nn, "Unable to allocate MSI-X Vectors. Exiting\n"); err = -EIO; goto err_unmap_rx; } + nfp_net_irqs_assign(nn, vf->irq_entries, num_irqs); /* Get ME clock frequency from ctrl BAR * XXX for now frequency is hardcoded until we figure out how @@ -257,25 +286,23 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev, if (err) goto err_irqs_disable; - pci_set_drvdata(pdev, nn); - nfp_net_info(nn); - nfp_net_debugfs_adapter_add(nn); + vf->ddir = nfp_net_debugfs_device_add(pdev); + nfp_net_debugfs_port_add(nn, vf->ddir, 0); return 0; err_irqs_disable: - nfp_net_irqs_disable(nn); + nfp_net_irqs_disable(pdev); err_unmap_rx: - if (!nn->q_bar) + if (!vf->q_bar) iounmap(nn->rx_bar); err_unmap_tx: - if (!nn->q_bar) + if (!vf->q_bar) iounmap(nn->tx_bar); else - iounmap(nn->q_bar); + iounmap(vf->q_bar); err_netdev_free: - pci_set_drvdata(pdev, NULL); nfp_net_netdev_free(nn); err_ctrl_unmap: iounmap(ctrl_bar); @@ -283,71 +310,47 @@ err_pci_regions: pci_release_regions(pdev); err_pci_disable: pci_disable_device(pdev); +err_free_vf: + pci_set_drvdata(pdev, NULL); + kfree(vf); return err; } static void nfp_netvf_pci_remove(struct pci_dev *pdev) { - struct nfp_net *nn = pci_get_drvdata(pdev); + struct nfp_net_vf *vf = pci_get_drvdata(pdev); + struct nfp_net *nn = vf->nn; /* Note, the order is slightly different from above as we need * to keep the nn pointer around till we have freed everything. */ - nfp_net_debugfs_adapter_del(nn); + nfp_net_debugfs_dir_clean(&nn->debugfs_dir); + nfp_net_debugfs_dir_clean(&vf->ddir); nfp_net_netdev_clean(nn->netdev); - nfp_net_irqs_disable(nn); + nfp_net_irqs_disable(pdev); - if (!nn->q_bar) { + if (!vf->q_bar) { iounmap(nn->rx_bar); iounmap(nn->tx_bar); } else { - iounmap(nn->q_bar); + iounmap(vf->q_bar); } iounmap(nn->ctrl_bar); - pci_set_drvdata(pdev, NULL); - nfp_net_netdev_free(nn); pci_release_regions(pdev); pci_disable_device(pdev); + + pci_set_drvdata(pdev, NULL); + kfree(vf); } -static struct pci_driver nfp_netvf_pci_driver = { +struct pci_driver nfp_netvf_pci_driver = { .name = nfp_net_driver_name, .id_table = nfp_netvf_pci_device_ids, .probe = nfp_netvf_pci_probe, .remove = nfp_netvf_pci_remove, }; - -static int __init nfp_netvf_init(void) -{ - int err; - - pr_info("%s: NFP VF Network driver, Copyright (C) 2014-2015 Netronome Systems\n", - nfp_net_driver_name); - - nfp_net_debugfs_create(); - err = pci_register_driver(&nfp_netvf_pci_driver); - if (err) { - nfp_net_debugfs_destroy(); - return err; - } - - return 0; -} - -static void __exit nfp_netvf_exit(void) -{ - pci_unregister_driver(&nfp_netvf_pci_driver); - nfp_net_debugfs_destroy(); -} - -module_init(nfp_netvf_init); -module_exit(nfp_netvf_exit); - -MODULE_AUTHOR("Netronome Systems <oss-drivers@netronome.com>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("NFP VF network device driver"); |