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789 lines
18 KiB
789 lines
18 KiB
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
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/* Copyright (C) 2015-2018 Netronome Systems, Inc. */ |
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|
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/* |
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* nfp_net_main.c |
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* Netronome network device driver: Main entry point |
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* Authors: Jakub Kicinski <[email protected]> |
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* Alejandro Lucero <[email protected]> |
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* Jason McMullan <[email protected]> |
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* Rolf Neugebauer <[email protected]> |
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*/ |
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|
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#include <linux/etherdevice.h> |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/lockdep.h> |
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#include <linux/pci.h> |
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#include <linux/pci_regs.h> |
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#include <linux/msi.h> |
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#include <linux/random.h> |
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#include <linux/rtnetlink.h> |
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|
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#include "nfpcore/nfp.h" |
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#include "nfpcore/nfp_cpp.h" |
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#include "nfpcore/nfp_nffw.h" |
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#include "nfpcore/nfp_nsp.h" |
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#include "nfpcore/nfp6000_pcie.h" |
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#include "nfp_app.h" |
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#include "nfp_net_ctrl.h" |
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#include "nfp_net_sriov.h" |
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#include "nfp_net.h" |
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#include "nfp_main.h" |
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#include "nfp_port.h" |
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|
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#define NFP_PF_CSR_SLICE_SIZE (32 * 1024) |
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|
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/** |
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* nfp_net_get_mac_addr() - Get the MAC address. |
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* @pf: NFP PF handle |
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* @netdev: net_device to set MAC address on |
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* @port: NFP port structure |
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* |
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* First try to get the MAC address from NSP ETH table. If that |
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* fails generate a random address. |
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*/ |
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void |
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nfp_net_get_mac_addr(struct nfp_pf *pf, struct net_device *netdev, |
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struct nfp_port *port) |
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{ |
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struct nfp_eth_table_port *eth_port; |
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|
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eth_port = __nfp_port_get_eth_port(port); |
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if (!eth_port) { |
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eth_hw_addr_random(netdev); |
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return; |
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} |
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|
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ether_addr_copy(netdev->dev_addr, eth_port->mac_addr); |
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ether_addr_copy(netdev->perm_addr, eth_port->mac_addr); |
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} |
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|
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static struct nfp_eth_table_port * |
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nfp_net_find_port(struct nfp_eth_table *eth_tbl, unsigned int index) |
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{ |
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int i; |
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|
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for (i = 0; eth_tbl && i < eth_tbl->count; i++) |
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if (eth_tbl->ports[i].index == index) |
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return ð_tbl->ports[i]; |
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|
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return NULL; |
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} |
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|
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static int nfp_net_pf_get_num_ports(struct nfp_pf *pf) |
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{ |
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return nfp_pf_rtsym_read_optional(pf, "nfd_cfg_pf%u_num_ports", 1); |
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} |
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|
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static int nfp_net_pf_get_app_id(struct nfp_pf *pf) |
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{ |
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return nfp_pf_rtsym_read_optional(pf, "_pf%u_net_app_id", |
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NFP_APP_CORE_NIC); |
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} |
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|
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static void nfp_net_pf_free_vnic(struct nfp_pf *pf, struct nfp_net *nn) |
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{ |
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if (nfp_net_is_data_vnic(nn)) |
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nfp_app_vnic_free(pf->app, nn); |
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nfp_port_free(nn->port); |
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list_del(&nn->vnic_list); |
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pf->num_vnics--; |
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nfp_net_free(nn); |
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} |
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|
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static void nfp_net_pf_free_vnics(struct nfp_pf *pf) |
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{ |
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struct nfp_net *nn, *next; |
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|
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list_for_each_entry_safe(nn, next, &pf->vnics, vnic_list) |
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if (nfp_net_is_data_vnic(nn)) |
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nfp_net_pf_free_vnic(pf, nn); |
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} |
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|
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static struct nfp_net * |
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nfp_net_pf_alloc_vnic(struct nfp_pf *pf, bool needs_netdev, |
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void __iomem *ctrl_bar, void __iomem *qc_bar, |
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int stride, unsigned int id) |
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{ |
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u32 tx_base, rx_base, n_tx_rings, n_rx_rings; |
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struct nfp_net *nn; |
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int err; |
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|
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tx_base = readl(ctrl_bar + NFP_NET_CFG_START_TXQ); |
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rx_base = readl(ctrl_bar + NFP_NET_CFG_START_RXQ); |
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n_tx_rings = readl(ctrl_bar + NFP_NET_CFG_MAX_TXRINGS); |
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n_rx_rings = readl(ctrl_bar + NFP_NET_CFG_MAX_RXRINGS); |
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|
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/* Allocate and initialise the vNIC */ |
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nn = nfp_net_alloc(pf->pdev, ctrl_bar, needs_netdev, |
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n_tx_rings, n_rx_rings); |
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if (IS_ERR(nn)) |
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return nn; |
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|
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nn->app = pf->app; |
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nfp_net_get_fw_version(&nn->fw_ver, ctrl_bar); |
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nn->tx_bar = qc_bar + tx_base * NFP_QCP_QUEUE_ADDR_SZ; |
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nn->rx_bar = qc_bar + rx_base * NFP_QCP_QUEUE_ADDR_SZ; |
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nn->dp.is_vf = 0; |
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nn->stride_rx = stride; |
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nn->stride_tx = stride; |
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|
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if (needs_netdev) { |
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err = nfp_app_vnic_alloc(pf->app, nn, id); |
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if (err) { |
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nfp_net_free(nn); |
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return ERR_PTR(err); |
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} |
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} |
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|
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pf->num_vnics++; |
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list_add_tail(&nn->vnic_list, &pf->vnics); |
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|
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return nn; |
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} |
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|
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static int |
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nfp_net_pf_init_vnic(struct nfp_pf *pf, struct nfp_net *nn, unsigned int id) |
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{ |
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int err; |
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|
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nn->id = id; |
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|
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if (nn->port) { |
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err = nfp_devlink_port_register(pf->app, nn->port); |
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if (err) |
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return err; |
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} |
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|
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err = nfp_net_init(nn); |
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if (err) |
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goto err_devlink_port_clean; |
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|
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nfp_net_debugfs_vnic_add(nn, pf->ddir); |
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|
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if (nn->port) |
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nfp_devlink_port_type_eth_set(nn->port); |
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|
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nfp_net_info(nn); |
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|
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if (nfp_net_is_data_vnic(nn)) { |
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err = nfp_app_vnic_init(pf->app, nn); |
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if (err) |
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goto err_devlink_port_type_clean; |
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} |
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|
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return 0; |
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|
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err_devlink_port_type_clean: |
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if (nn->port) |
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nfp_devlink_port_type_clear(nn->port); |
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nfp_net_debugfs_dir_clean(&nn->debugfs_dir); |
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nfp_net_clean(nn); |
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err_devlink_port_clean: |
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if (nn->port) |
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nfp_devlink_port_unregister(nn->port); |
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return err; |
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} |
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|
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static int |
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nfp_net_pf_alloc_vnics(struct nfp_pf *pf, void __iomem *ctrl_bar, |
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void __iomem *qc_bar, int stride) |
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{ |
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struct nfp_net *nn; |
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unsigned int i; |
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int err; |
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|
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for (i = 0; i < pf->max_data_vnics; i++) { |
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nn = nfp_net_pf_alloc_vnic(pf, true, ctrl_bar, qc_bar, |
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stride, i); |
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if (IS_ERR(nn)) { |
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err = PTR_ERR(nn); |
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goto err_free_prev; |
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} |
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ctrl_bar += NFP_PF_CSR_SLICE_SIZE; |
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|
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/* Kill the vNIC if app init marked it as invalid */ |
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if (nn->port && nn->port->type == NFP_PORT_INVALID) |
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nfp_net_pf_free_vnic(pf, nn); |
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} |
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|
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if (list_empty(&pf->vnics)) |
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return -ENODEV; |
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|
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return 0; |
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|
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err_free_prev: |
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nfp_net_pf_free_vnics(pf); |
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return err; |
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} |
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|
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static void nfp_net_pf_clean_vnic(struct nfp_pf *pf, struct nfp_net *nn) |
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{ |
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if (nfp_net_is_data_vnic(nn)) |
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nfp_app_vnic_clean(pf->app, nn); |
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if (nn->port) |
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nfp_devlink_port_type_clear(nn->port); |
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nfp_net_debugfs_dir_clean(&nn->debugfs_dir); |
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nfp_net_clean(nn); |
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if (nn->port) |
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nfp_devlink_port_unregister(nn->port); |
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} |
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|
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static int nfp_net_pf_alloc_irqs(struct nfp_pf *pf) |
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{ |
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unsigned int wanted_irqs, num_irqs, vnics_left, irqs_left; |
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struct nfp_net *nn; |
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|
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/* Get MSI-X vectors */ |
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wanted_irqs = 0; |
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list_for_each_entry(nn, &pf->vnics, vnic_list) |
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wanted_irqs += NFP_NET_NON_Q_VECTORS + nn->dp.num_r_vecs; |
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pf->irq_entries = kcalloc(wanted_irqs, sizeof(*pf->irq_entries), |
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GFP_KERNEL); |
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if (!pf->irq_entries) |
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return -ENOMEM; |
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|
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num_irqs = nfp_net_irqs_alloc(pf->pdev, pf->irq_entries, |
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NFP_NET_MIN_VNIC_IRQS * pf->num_vnics, |
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wanted_irqs); |
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if (!num_irqs) { |
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nfp_warn(pf->cpp, "Unable to allocate MSI-X vectors\n"); |
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kfree(pf->irq_entries); |
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return -ENOMEM; |
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} |
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|
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/* Distribute IRQs to vNICs */ |
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irqs_left = num_irqs; |
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vnics_left = pf->num_vnics; |
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list_for_each_entry(nn, &pf->vnics, vnic_list) { |
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unsigned int n; |
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|
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n = min(NFP_NET_NON_Q_VECTORS + nn->dp.num_r_vecs, |
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DIV_ROUND_UP(irqs_left, vnics_left)); |
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nfp_net_irqs_assign(nn, &pf->irq_entries[num_irqs - irqs_left], |
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n); |
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irqs_left -= n; |
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vnics_left--; |
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} |
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|
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return 0; |
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} |
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|
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static void nfp_net_pf_free_irqs(struct nfp_pf *pf) |
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{ |
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nfp_net_irqs_disable(pf->pdev); |
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kfree(pf->irq_entries); |
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} |
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|
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static int nfp_net_pf_init_vnics(struct nfp_pf *pf) |
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{ |
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struct nfp_net *nn; |
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unsigned int id; |
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int err; |
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|
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/* Finish vNIC init and register */ |
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id = 0; |
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list_for_each_entry(nn, &pf->vnics, vnic_list) { |
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if (!nfp_net_is_data_vnic(nn)) |
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continue; |
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err = nfp_net_pf_init_vnic(pf, nn, id); |
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if (err) |
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goto err_prev_deinit; |
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|
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id++; |
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} |
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return 0; |
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|
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err_prev_deinit: |
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list_for_each_entry_continue_reverse(nn, &pf->vnics, vnic_list) |
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if (nfp_net_is_data_vnic(nn)) |
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nfp_net_pf_clean_vnic(pf, nn); |
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return err; |
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} |
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|
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static int |
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nfp_net_pf_app_init(struct nfp_pf *pf, u8 __iomem *qc_bar, unsigned int stride) |
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{ |
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u8 __iomem *ctrl_bar; |
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int err; |
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|
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pf->app = nfp_app_alloc(pf, nfp_net_pf_get_app_id(pf)); |
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if (IS_ERR(pf->app)) |
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return PTR_ERR(pf->app); |
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|
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mutex_lock(&pf->lock); |
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err = nfp_app_init(pf->app); |
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mutex_unlock(&pf->lock); |
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if (err) |
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goto err_free; |
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|
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if (!nfp_app_needs_ctrl_vnic(pf->app)) |
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return 0; |
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|
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ctrl_bar = nfp_pf_map_rtsym(pf, "net.ctrl", "_pf%u_net_ctrl_bar", |
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NFP_PF_CSR_SLICE_SIZE, &pf->ctrl_vnic_bar); |
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if (IS_ERR(ctrl_bar)) { |
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nfp_err(pf->cpp, "Failed to find ctrl vNIC memory symbol\n"); |
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err = PTR_ERR(ctrl_bar); |
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goto err_app_clean; |
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} |
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|
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pf->ctrl_vnic = nfp_net_pf_alloc_vnic(pf, false, ctrl_bar, qc_bar, |
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stride, 0); |
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if (IS_ERR(pf->ctrl_vnic)) { |
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err = PTR_ERR(pf->ctrl_vnic); |
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goto err_unmap; |
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} |
|
|
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return 0; |
|
|
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err_unmap: |
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nfp_cpp_area_release_free(pf->ctrl_vnic_bar); |
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err_app_clean: |
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mutex_lock(&pf->lock); |
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nfp_app_clean(pf->app); |
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mutex_unlock(&pf->lock); |
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err_free: |
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nfp_app_free(pf->app); |
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pf->app = NULL; |
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return err; |
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} |
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|
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static void nfp_net_pf_app_clean(struct nfp_pf *pf) |
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{ |
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if (pf->ctrl_vnic) { |
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nfp_net_pf_free_vnic(pf, pf->ctrl_vnic); |
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nfp_cpp_area_release_free(pf->ctrl_vnic_bar); |
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} |
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|
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mutex_lock(&pf->lock); |
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nfp_app_clean(pf->app); |
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mutex_unlock(&pf->lock); |
|
|
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nfp_app_free(pf->app); |
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pf->app = NULL; |
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} |
|
|
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static int nfp_net_pf_app_start_ctrl(struct nfp_pf *pf) |
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{ |
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int err; |
|
|
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if (!pf->ctrl_vnic) |
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return 0; |
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err = nfp_net_pf_init_vnic(pf, pf->ctrl_vnic, 0); |
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if (err) |
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return err; |
|
|
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err = nfp_ctrl_open(pf->ctrl_vnic); |
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if (err) |
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goto err_clean_ctrl; |
|
|
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return 0; |
|
|
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err_clean_ctrl: |
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nfp_net_pf_clean_vnic(pf, pf->ctrl_vnic); |
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return err; |
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} |
|
|
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static void nfp_net_pf_app_stop_ctrl(struct nfp_pf *pf) |
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{ |
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if (!pf->ctrl_vnic) |
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return; |
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nfp_ctrl_close(pf->ctrl_vnic); |
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nfp_net_pf_clean_vnic(pf, pf->ctrl_vnic); |
|
} |
|
|
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static int nfp_net_pf_app_start(struct nfp_pf *pf) |
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{ |
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int err; |
|
|
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err = nfp_net_pf_app_start_ctrl(pf); |
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if (err) |
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return err; |
|
|
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err = nfp_app_start(pf->app, pf->ctrl_vnic); |
|
if (err) |
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goto err_ctrl_stop; |
|
|
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if (pf->num_vfs) { |
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err = nfp_app_sriov_enable(pf->app, pf->num_vfs); |
|
if (err) |
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goto err_app_stop; |
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} |
|
|
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return 0; |
|
|
|
err_app_stop: |
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nfp_app_stop(pf->app); |
|
err_ctrl_stop: |
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nfp_net_pf_app_stop_ctrl(pf); |
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return err; |
|
} |
|
|
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static void nfp_net_pf_app_stop(struct nfp_pf *pf) |
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{ |
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if (pf->num_vfs) |
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nfp_app_sriov_disable(pf->app); |
|
nfp_app_stop(pf->app); |
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nfp_net_pf_app_stop_ctrl(pf); |
|
} |
|
|
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static void nfp_net_pci_unmap_mem(struct nfp_pf *pf) |
|
{ |
|
if (pf->vfcfg_tbl2_area) |
|
nfp_cpp_area_release_free(pf->vfcfg_tbl2_area); |
|
if (pf->vf_cfg_bar) |
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nfp_cpp_area_release_free(pf->vf_cfg_bar); |
|
if (pf->mac_stats_bar) |
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nfp_cpp_area_release_free(pf->mac_stats_bar); |
|
nfp_cpp_area_release_free(pf->qc_area); |
|
nfp_cpp_area_release_free(pf->data_vnic_bar); |
|
} |
|
|
|
static int nfp_net_pci_map_mem(struct nfp_pf *pf) |
|
{ |
|
u32 min_size, cpp_id; |
|
u8 __iomem *mem; |
|
int err; |
|
|
|
min_size = pf->max_data_vnics * NFP_PF_CSR_SLICE_SIZE; |
|
mem = nfp_pf_map_rtsym(pf, "net.bar0", "_pf%d_net_bar0", |
|
min_size, &pf->data_vnic_bar); |
|
if (IS_ERR(mem)) { |
|
nfp_err(pf->cpp, "Failed to find data vNIC memory symbol\n"); |
|
return PTR_ERR(mem); |
|
} |
|
|
|
if (pf->eth_tbl) { |
|
min_size = NFP_MAC_STATS_SIZE * (pf->eth_tbl->max_index + 1); |
|
pf->mac_stats_mem = nfp_rtsym_map(pf->rtbl, "_mac_stats", |
|
"net.macstats", min_size, |
|
&pf->mac_stats_bar); |
|
if (IS_ERR(pf->mac_stats_mem)) { |
|
if (PTR_ERR(pf->mac_stats_mem) != -ENOENT) { |
|
err = PTR_ERR(pf->mac_stats_mem); |
|
goto err_unmap_ctrl; |
|
} |
|
pf->mac_stats_mem = NULL; |
|
} |
|
} |
|
|
|
pf->vf_cfg_mem = nfp_pf_map_rtsym(pf, "net.vfcfg", "_pf%d_net_vf_bar", |
|
NFP_NET_CFG_BAR_SZ * pf->limit_vfs, |
|
&pf->vf_cfg_bar); |
|
if (IS_ERR(pf->vf_cfg_mem)) { |
|
if (PTR_ERR(pf->vf_cfg_mem) != -ENOENT) { |
|
err = PTR_ERR(pf->vf_cfg_mem); |
|
goto err_unmap_mac_stats; |
|
} |
|
pf->vf_cfg_mem = NULL; |
|
} |
|
|
|
min_size = NFP_NET_VF_CFG_SZ * pf->limit_vfs + NFP_NET_VF_CFG_MB_SZ; |
|
pf->vfcfg_tbl2 = nfp_pf_map_rtsym(pf, "net.vfcfg_tbl2", |
|
"_pf%d_net_vf_cfg2", |
|
min_size, &pf->vfcfg_tbl2_area); |
|
if (IS_ERR(pf->vfcfg_tbl2)) { |
|
if (PTR_ERR(pf->vfcfg_tbl2) != -ENOENT) { |
|
err = PTR_ERR(pf->vfcfg_tbl2); |
|
goto err_unmap_vf_cfg; |
|
} |
|
pf->vfcfg_tbl2 = NULL; |
|
} |
|
|
|
cpp_id = NFP_CPP_ISLAND_ID(0, NFP_CPP_ACTION_RW, 0, 0); |
|
mem = nfp_cpp_map_area(pf->cpp, "net.qc", cpp_id, NFP_PCIE_QUEUE(0), |
|
NFP_QCP_QUEUE_AREA_SZ, &pf->qc_area); |
|
if (IS_ERR(mem)) { |
|
nfp_err(pf->cpp, "Failed to map Queue Controller area.\n"); |
|
err = PTR_ERR(mem); |
|
goto err_unmap_vfcfg_tbl2; |
|
} |
|
|
|
return 0; |
|
|
|
err_unmap_vfcfg_tbl2: |
|
if (pf->vfcfg_tbl2_area) |
|
nfp_cpp_area_release_free(pf->vfcfg_tbl2_area); |
|
err_unmap_vf_cfg: |
|
if (pf->vf_cfg_bar) |
|
nfp_cpp_area_release_free(pf->vf_cfg_bar); |
|
err_unmap_mac_stats: |
|
if (pf->mac_stats_bar) |
|
nfp_cpp_area_release_free(pf->mac_stats_bar); |
|
err_unmap_ctrl: |
|
nfp_cpp_area_release_free(pf->data_vnic_bar); |
|
return err; |
|
} |
|
|
|
static int |
|
nfp_net_eth_port_update(struct nfp_cpp *cpp, struct nfp_port *port, |
|
struct nfp_eth_table *eth_table) |
|
{ |
|
struct nfp_eth_table_port *eth_port; |
|
|
|
ASSERT_RTNL(); |
|
|
|
eth_port = nfp_net_find_port(eth_table, port->eth_id); |
|
if (!eth_port) { |
|
set_bit(NFP_PORT_CHANGED, &port->flags); |
|
nfp_warn(cpp, "Warning: port #%d not present after reconfig\n", |
|
port->eth_id); |
|
return -EIO; |
|
} |
|
if (eth_port->override_changed) { |
|
nfp_warn(cpp, "Port #%d config changed, unregistering. Driver reload required before port will be operational again.\n", port->eth_id); |
|
port->type = NFP_PORT_INVALID; |
|
} |
|
|
|
memcpy(port->eth_port, eth_port, sizeof(*eth_port)); |
|
|
|
return 0; |
|
} |
|
|
|
int nfp_net_refresh_port_table_sync(struct nfp_pf *pf) |
|
{ |
|
struct nfp_eth_table *eth_table; |
|
struct nfp_net *nn, *next; |
|
struct nfp_port *port; |
|
int err; |
|
|
|
lockdep_assert_held(&pf->lock); |
|
|
|
/* Check for nfp_net_pci_remove() racing against us */ |
|
if (list_empty(&pf->vnics)) |
|
return 0; |
|
|
|
/* Update state of all ports */ |
|
rtnl_lock(); |
|
list_for_each_entry(port, &pf->ports, port_list) |
|
clear_bit(NFP_PORT_CHANGED, &port->flags); |
|
|
|
eth_table = nfp_eth_read_ports(pf->cpp); |
|
if (!eth_table) { |
|
list_for_each_entry(port, &pf->ports, port_list) |
|
if (__nfp_port_get_eth_port(port)) |
|
set_bit(NFP_PORT_CHANGED, &port->flags); |
|
rtnl_unlock(); |
|
nfp_err(pf->cpp, "Error refreshing port config!\n"); |
|
return -EIO; |
|
} |
|
|
|
list_for_each_entry(port, &pf->ports, port_list) |
|
if (__nfp_port_get_eth_port(port)) |
|
nfp_net_eth_port_update(pf->cpp, port, eth_table); |
|
rtnl_unlock(); |
|
|
|
kfree(eth_table); |
|
|
|
/* Resync repr state. This may cause reprs to be removed. */ |
|
err = nfp_reprs_resync_phys_ports(pf->app); |
|
if (err) |
|
return err; |
|
|
|
/* Shoot off the ports which became invalid */ |
|
list_for_each_entry_safe(nn, next, &pf->vnics, vnic_list) { |
|
if (!nn->port || nn->port->type != NFP_PORT_INVALID) |
|
continue; |
|
|
|
nfp_net_pf_clean_vnic(pf, nn); |
|
nfp_net_pf_free_vnic(pf, nn); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void nfp_net_refresh_vnics(struct work_struct *work) |
|
{ |
|
struct nfp_pf *pf = container_of(work, struct nfp_pf, |
|
port_refresh_work); |
|
|
|
mutex_lock(&pf->lock); |
|
nfp_net_refresh_port_table_sync(pf); |
|
mutex_unlock(&pf->lock); |
|
} |
|
|
|
void nfp_net_refresh_port_table(struct nfp_port *port) |
|
{ |
|
struct nfp_pf *pf = port->app->pf; |
|
|
|
set_bit(NFP_PORT_CHANGED, &port->flags); |
|
|
|
queue_work(pf->wq, &pf->port_refresh_work); |
|
} |
|
|
|
int nfp_net_refresh_eth_port(struct nfp_port *port) |
|
{ |
|
struct nfp_cpp *cpp = port->app->cpp; |
|
struct nfp_eth_table *eth_table; |
|
int ret; |
|
|
|
clear_bit(NFP_PORT_CHANGED, &port->flags); |
|
|
|
eth_table = nfp_eth_read_ports(cpp); |
|
if (!eth_table) { |
|
set_bit(NFP_PORT_CHANGED, &port->flags); |
|
nfp_err(cpp, "Error refreshing port state table!\n"); |
|
return -EIO; |
|
} |
|
|
|
ret = nfp_net_eth_port_update(cpp, port, eth_table); |
|
|
|
kfree(eth_table); |
|
|
|
return ret; |
|
} |
|
|
|
/* |
|
* PCI device functions |
|
*/ |
|
int nfp_net_pci_probe(struct nfp_pf *pf) |
|
{ |
|
struct devlink *devlink = priv_to_devlink(pf); |
|
struct nfp_net_fw_version fw_ver; |
|
u8 __iomem *ctrl_bar, *qc_bar; |
|
int stride; |
|
int err; |
|
|
|
INIT_WORK(&pf->port_refresh_work, nfp_net_refresh_vnics); |
|
|
|
if (!pf->rtbl) { |
|
nfp_err(pf->cpp, "No %s, giving up.\n", |
|
pf->fw_loaded ? "symbol table" : "firmware found"); |
|
return -EINVAL; |
|
} |
|
|
|
pf->max_data_vnics = nfp_net_pf_get_num_ports(pf); |
|
if ((int)pf->max_data_vnics < 0) |
|
return pf->max_data_vnics; |
|
|
|
err = nfp_net_pci_map_mem(pf); |
|
if (err) |
|
return err; |
|
|
|
ctrl_bar = nfp_cpp_area_iomem(pf->data_vnic_bar); |
|
qc_bar = nfp_cpp_area_iomem(pf->qc_area); |
|
if (!ctrl_bar || !qc_bar) { |
|
err = -EIO; |
|
goto err_unmap; |
|
} |
|
|
|
nfp_net_get_fw_version(&fw_ver, ctrl_bar); |
|
if (fw_ver.resv || fw_ver.class != NFP_NET_CFG_VERSION_CLASS_GENERIC) { |
|
nfp_err(pf->cpp, "Unknown Firmware ABI %d.%d.%d.%d\n", |
|
fw_ver.resv, fw_ver.class, fw_ver.major, fw_ver.minor); |
|
err = -EINVAL; |
|
goto err_unmap; |
|
} |
|
|
|
/* Determine stride */ |
|
if (nfp_net_fw_ver_eq(&fw_ver, 0, 0, 0, 1)) { |
|
stride = 2; |
|
nfp_warn(pf->cpp, "OBSOLETE Firmware detected - VF isolation not available\n"); |
|
} else { |
|
switch (fw_ver.major) { |
|
case 1 ... 5: |
|
stride = 4; |
|
break; |
|
default: |
|
nfp_err(pf->cpp, "Unsupported Firmware ABI %d.%d.%d.%d\n", |
|
fw_ver.resv, fw_ver.class, |
|
fw_ver.major, fw_ver.minor); |
|
err = -EINVAL; |
|
goto err_unmap; |
|
} |
|
} |
|
|
|
err = nfp_net_pf_app_init(pf, qc_bar, stride); |
|
if (err) |
|
goto err_unmap; |
|
|
|
err = devlink_register(devlink); |
|
if (err) |
|
goto err_app_clean; |
|
|
|
err = nfp_shared_buf_register(pf); |
|
if (err) |
|
goto err_devlink_unreg; |
|
|
|
err = nfp_devlink_params_register(pf); |
|
if (err) |
|
goto err_shared_buf_unreg; |
|
|
|
mutex_lock(&pf->lock); |
|
pf->ddir = nfp_net_debugfs_device_add(pf->pdev); |
|
|
|
/* Allocate the vnics and do basic init */ |
|
err = nfp_net_pf_alloc_vnics(pf, ctrl_bar, qc_bar, stride); |
|
if (err) |
|
goto err_clean_ddir; |
|
|
|
err = nfp_net_pf_alloc_irqs(pf); |
|
if (err) |
|
goto err_free_vnics; |
|
|
|
err = nfp_net_pf_app_start(pf); |
|
if (err) |
|
goto err_free_irqs; |
|
|
|
err = nfp_net_pf_init_vnics(pf); |
|
if (err) |
|
goto err_stop_app; |
|
|
|
mutex_unlock(&pf->lock); |
|
|
|
return 0; |
|
|
|
err_stop_app: |
|
nfp_net_pf_app_stop(pf); |
|
err_free_irqs: |
|
nfp_net_pf_free_irqs(pf); |
|
err_free_vnics: |
|
nfp_net_pf_free_vnics(pf); |
|
err_clean_ddir: |
|
nfp_net_debugfs_dir_clean(&pf->ddir); |
|
mutex_unlock(&pf->lock); |
|
nfp_devlink_params_unregister(pf); |
|
err_shared_buf_unreg: |
|
nfp_shared_buf_unregister(pf); |
|
err_devlink_unreg: |
|
cancel_work_sync(&pf->port_refresh_work); |
|
devlink_unregister(devlink); |
|
err_app_clean: |
|
nfp_net_pf_app_clean(pf); |
|
err_unmap: |
|
nfp_net_pci_unmap_mem(pf); |
|
return err; |
|
} |
|
|
|
void nfp_net_pci_remove(struct nfp_pf *pf) |
|
{ |
|
struct nfp_net *nn, *next; |
|
|
|
mutex_lock(&pf->lock); |
|
list_for_each_entry_safe(nn, next, &pf->vnics, vnic_list) { |
|
if (!nfp_net_is_data_vnic(nn)) |
|
continue; |
|
nfp_net_pf_clean_vnic(pf, nn); |
|
nfp_net_pf_free_vnic(pf, nn); |
|
} |
|
|
|
nfp_net_pf_app_stop(pf); |
|
/* stop app first, to avoid double free of ctrl vNIC's ddir */ |
|
nfp_net_debugfs_dir_clean(&pf->ddir); |
|
|
|
mutex_unlock(&pf->lock); |
|
|
|
nfp_devlink_params_unregister(pf); |
|
nfp_shared_buf_unregister(pf); |
|
devlink_unregister(priv_to_devlink(pf)); |
|
|
|
nfp_net_pf_free_irqs(pf); |
|
nfp_net_pf_app_clean(pf); |
|
nfp_net_pci_unmap_mem(pf); |
|
|
|
cancel_work_sync(&pf->port_refresh_work); |
|
}
|
|
|