// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/* Copyright (C) 2015-2018 Netronome Systems, Inc. */
/*
* nfp_net_main.c
* Netronome network device driver: Main entry point
* Authors: Jakub Kicinski <[email protected]>
* Alejandro Lucero <[email protected]>
* Jason McMullan <[email protected]>
* Rolf Neugebauer <[email protected]>
*/
#include <linux/etherdevice.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/lockdep.h>
#include <linux/pci.h>
#include <linux/pci_regs.h>
#include <linux/random.h>
#include <linux/rtnetlink.h>
#include "nfpcore/nfp.h"
#include "nfpcore/nfp_cpp.h"
#include "nfpcore/nfp_dev.h"
#include "nfpcore/nfp_nffw.h"
#include "nfpcore/nfp_nsp.h"
#include "nfpcore/nfp6000_pcie.h"
#include "nfp_app.h"
#include "nfp_net_ctrl.h"
#include "nfp_net_sriov.h"
#include "nfp_net.h"
#include "nfp_main.h"
#include "nfp_port.h"
#define NFP_PF_CSR_SLICE_SIZE (32 * 1024)
/**
* nfp_net_get_mac_addr() - Get the MAC address.
* @pf: NFP PF handle
* @netdev: net_device to set MAC address on
* @port: NFP port structure
*
* First try to get the MAC address from NSP ETH table. If that
* fails generate a random address.
*/
void
nfp_net_get_mac_addr(struct nfp_pf *pf, struct net_device *netdev,
struct nfp_port *port)
{
struct nfp_eth_table_port *eth_port;
eth_port = __nfp_port_get_eth_port(port);
if (!eth_port) {
eth_hw_addr_random(netdev);
return;
}
eth_hw_addr_set(netdev, eth_port->mac_addr);
ether_addr_copy(netdev->perm_addr, eth_port->mac_addr);
}
static struct nfp_eth_table_port *
nfp_net_find_port(struct nfp_eth_table *eth_tbl, unsigned int index)
{
int i;
for (i = 0; eth_tbl && i < eth_tbl->count; i++)
if (eth_tbl->ports[i].index == index)
return ð_tbl->ports[i];
return NULL;
}
static int nfp_net_pf_get_num_ports(struct nfp_pf *pf)
{
return nfp_pf_rtsym_read_optional(pf, "nfd_cfg_pf%u_num_ports", 1);
}
static void nfp_net_pf_free_vnic(struct nfp_pf *pf, struct nfp_net *nn)
{
if (nfp_net_is_data_vnic(nn))
nfp_app_vnic_free(pf->app, nn);
nfp_port_free(nn->port);
list_del(&nn->vnic_list);
pf->num_vnics--;
nfp_net_free(nn);
}
static void nfp_net_pf_free_vnics(struct nfp_pf *pf)
{
struct nfp_net *nn, *next;
list_for_each_entry_safe(nn, next, &pf->vnics, vnic_list)
if (nfp_net_is_data_vnic(nn))
nfp_net_pf_free_vnic(pf, nn);
}
static struct nfp_net *
nfp_net_pf_alloc_vnic(struct nfp_pf *pf, bool needs_netdev,
void __iomem *ctrl_bar, void __iomem *qc_bar,
int stride, unsigned int id)
{
u32 tx_base, rx_base, n_tx_rings, n_rx_rings;
struct nfp_net *nn;
int err;
tx_base = readl(ctrl_bar + NFP_NET_CFG_START_TXQ);
rx_base = readl(ctrl_bar + NFP_NET_CFG_START_RXQ);
n_tx_rings = readl(ctrl_bar + NFP_NET_CFG_MAX_TXRINGS);
n_rx_rings = readl(ctrl_bar + NFP_NET_CFG_MAX_RXRINGS);
/* Allocate and initialise the vNIC */
nn = nfp_net_alloc(pf->pdev, pf->dev_info, ctrl_bar, needs_netdev,
n_tx_rings, n_rx_rings);
if (IS_ERR(nn))
return nn;
nn->app = pf->app;
nn->tx_bar = qc_bar + tx_base * NFP_QCP_QUEUE_ADDR_SZ;
nn->rx_bar = qc_bar + rx_base * NFP_QCP_QUEUE_ADDR_SZ;
nn->dp.is_vf = 0;
nn->stride_rx = stride;
nn->stride_tx = stride;
if (needs_netdev) {
err = nfp_app_vnic_alloc(pf->app, nn, id);
if (err) {
nfp_net_free(nn);
return ERR_PTR(err);
}
}
pf->num_vnics++;
list_add_tail(&nn->vnic_list, &pf->vnics);
return nn;
}
static int
nfp_net_pf_init_vnic(struct nfp_pf *pf, struct nfp_net *nn, unsigned int id)
{
int err;
nn->id = id;
if (nn->port) {
err = nfp_devlink_port_register(pf->app, nn->port);
if (err)
return err;
}
err = nfp_net_init(nn);
if (err)
goto err_devlink_port_clean;
nfp_net_debugfs_vnic_add(nn, pf->ddir);
nfp_net_info(nn);
if (nfp_net_is_data_vnic(nn)) {
err = nfp_app_vnic_init(pf->app, nn);
if (err)
goto err_debugfs_vnic_clean;
}
return 0;
err_debugfs_vnic_clean:
nfp_net_debugfs_dir_clean(&nn->debugfs_dir);
nfp_net_clean(nn);
err_devlink_port_clean:
if (nn->port)
nfp_devlink_port_unregister(nn->port);
return err;
}
static int
nfp_net_pf_alloc_vnics(struct nfp_pf *pf, void __iomem *ctrl_bar,
void __iomem *qc_bar, int stride)
{
struct nfp_net *nn;
unsigned int i;
int err;
for (i = 0; i < pf->max_data_vnics; i++) {
nn = nfp_net_pf_alloc_vnic(pf, true, ctrl_bar, qc_bar,
stride, i);
if (IS_ERR(nn)) {
err = PTR_ERR(nn);
goto err_free_prev;
}
if (nn->port)
nn->port->link_cb = nfp_net_refresh_port_table;
ctrl_bar += NFP_PF_CSR_SLICE_SIZE;
/* Kill the vNIC if app init marked it as invalid */
if (nn->port && nn->port->type == NFP_PORT_INVALID)
nfp_net_pf_free_vnic(pf, nn);
}
if (list_empty(&pf->vnics))
return -ENODEV;
return 0;
err_free_prev:
nfp_net_pf_free_vnics(pf);
return err;
}
static void nfp_net_pf_clean_vnic(struct nfp_pf *pf, struct nfp_net *nn)
{
if (nfp_net_is_data_vnic(nn))
nfp_app_vnic_clean(pf->app, nn);
nfp_net_debugfs_dir_clean(&nn->debugfs_dir);
nfp_net_clean(nn);
if (nn->port)
nfp_devlink_port_unregister(nn->port);
}
static int nfp_net_pf_alloc_irqs(struct nfp_pf *pf)
{
unsigned int wanted_irqs, num_irqs, vnics_left, irqs_left;
struct nfp_net *nn;
/* Get MSI-X vectors */
wanted_irqs = 0;
list_for_each_entry(nn, &pf->vnics, vnic_list)
wanted_irqs += NFP_NET_NON_Q_VECTORS + nn->dp.num_r_vecs;
pf->irq_entries = kcalloc(wanted_irqs, sizeof(*pf->irq_entries),
GFP_KERNEL);
if (!pf->irq_entries)
return -ENOMEM;
num_irqs = nfp_net_irqs_alloc(pf->pdev, pf->irq_entries,
NFP_NET_MIN_VNIC_IRQS * pf->num_vnics,
wanted_irqs);
if (!num_irqs) {
nfp_warn(pf->cpp, "Unable to allocate MSI-X vectors\n");
kfree(pf->irq_entries);
return -ENOMEM;
}
/* Distribute IRQs to vNICs */
irqs_left = num_irqs;
vnics_left = pf->num_vnics;
list_for_each_entry(nn, &pf->vnics, vnic_list) {
unsigned int n;
n = min(NFP_NET_NON_Q_VECTORS + nn->dp.num_r_vecs,
DIV_ROUND_UP(irqs_left, vnics_left));
nfp_net_irqs_assign(nn, &pf->irq_entries[num_irqs - irqs_left],
n);
irqs_left -= n;
vnics_left--;
}
return 0;
}
static void nfp_net_pf_free_irqs(struct nfp_pf *pf)
{
nfp_net_irqs_disable(pf->pdev);
kfree(pf->irq_entries);
}
static int nfp_net_pf_init_vnics(struct nfp_pf *pf)
{
struct nfp_net *nn;
unsigned int id;
int err;
/* Finish vNIC init and register */
id = 0;
list_for_each_entry(nn, &pf->vnics, vnic_list) {
if (!nfp_net_is_data_vnic(nn))
continue;
err = nfp_net_pf_init_vnic(pf, nn, id);
if (err)
goto err_prev_deinit;
id++;
}
return 0;
err_prev_deinit:
list_for_each_entry_continue_reverse(nn, &pf->vnics, vnic_list)
if (nfp_net_is_data_vnic(nn))
nfp_net_pf_clean_vnic(pf, nn);
return err;
}
static int
nfp_net_pf_app_init(struct nfp_pf *pf, u8 __iomem *qc_bar, unsigned int stride)
{
struct devlink *devlink = priv_to_devlink(pf);
u8 __iomem *ctrl_bar;
int err;
pf->app = nfp_app_alloc(pf, nfp_net_pf_get_app_id(pf));
if (IS_ERR(pf->app))
return PTR_ERR(pf->app);
devl_lock(devlink);
err = nfp_app_init(pf->app);
devl_unlock(devlink);
if (err)
goto err_free;
if (!nfp_app_needs_ctrl_vnic(pf->app))
return 0;
ctrl_bar = nfp_pf_map_rtsym(pf, "net.ctrl", "_pf%u_net_ctrl_bar",
NFP_PF_CSR_SLICE_SIZE, &pf->ctrl_vnic_bar);
if (IS_ERR(ctrl_bar)) {
nfp_err(pf->cpp, "Failed to find ctrl vNIC memory symbol\n");
err = PTR_ERR(ctrl_bar);
goto err_app_clean;
}
pf->ctrl_vnic = nfp_net_pf_alloc_vnic(pf, false, ctrl_bar, qc_bar,
stride, 0);
if (IS_ERR(pf->ctrl_vnic)) {
err = PTR_ERR(pf->ctrl_vnic);
goto err_unmap;
}
return 0;
err_unmap:
nfp_cpp_area_release_free(pf->ctrl_vnic_bar);
err_app_clean:
devl_lock(devlink);
nfp_app_clean(pf->app);
devl_unlock(devlink);
err_free:
nfp_app_free(pf->app);
pf->app = NULL;
return err;
}
static void nfp_net_pf_app_clean(struct nfp_pf *pf)
{
struct devlink *devlink = priv_to_devlink(pf);
if (pf->ctrl_vnic) {
nfp_net_pf_free_vnic(pf, pf->ctrl_vnic);
nfp_cpp_area_release_free(pf->ctrl_vnic_bar);
}
devl_lock(devlink);
nfp_app_clean(pf->app);
devl_unlock(devlink);
nfp_app_free(pf->app);
pf->app = NULL;
}
static int nfp_net_pf_app_start_ctrl(struct nfp_pf *pf)
{
int err;
if (!pf->ctrl_vnic)
return 0;
err = nfp_net_pf_init_vnic(pf, pf->ctrl_vnic, 0);
if (err)
return err;
err = nfp_ctrl_open(pf->ctrl_vnic);
if (err)
goto err_clean_ctrl;
return 0;
err_clean_ctrl:
nfp_net_pf_clean_vnic(pf, pf->ctrl_vnic);
return err;
}
static void nfp_net_pf_app_stop_ctrl(struct nfp_pf *pf)
{
if (!pf->ctrl_vnic)
return;
nfp_ctrl_close(pf->ctrl_vnic);
nfp_net_pf_clean_vnic(pf, pf->ctrl_vnic);
}
static int nfp_net_pf_app_start(struct nfp_pf *pf)
{
int err;
err = nfp_net_pf_app_start_ctrl(pf);
if (err)
return err;
err = nfp_app_start(pf->app, pf->ctrl_vnic);
if (err)
goto err_ctrl_stop;
if (pf->num_vfs) {
err = nfp_app_sriov_enable(pf->app, pf->num_vfs);
if (err)
goto err_app_stop;
}
return 0;
err_app_stop:
nfp_app_stop(pf->app);
err_ctrl_stop:
nfp_net_pf_app_stop_ctrl(pf);
return err;
}
static void nfp_net_pf_app_stop(struct nfp_pf *pf)
{
if (pf->num_vfs)
nfp_app_sriov_disable(pf->app);
nfp_app_stop(pf->app);
nfp_net_pf_app_stop_ctrl(pf);
}
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)
nfp_cpp_area_release_free(pf->vf_cfg_bar);
if (pf->mac_stats_bar)
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_qcp_queue_offset(pf->dev_info, 0),
pf->dev_info->qc_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 const unsigned int lr_to_speed[] = {
[NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED] = 0,
[NFP_NET_CFG_STS_LINK_RATE_UNKNOWN] = SPEED_UNKNOWN,
[NFP_NET_CFG_STS_LINK_RATE_1G] = SPEED_1000,
[NFP_NET_CFG_STS_LINK_RATE_10G] = SPEED_10000,
[NFP_NET_CFG_STS_LINK_RATE_25G] = SPEED_25000,
[NFP_NET_CFG_STS_LINK_RATE_40G] = SPEED_40000,
[NFP_NET_CFG_STS_LINK_RATE_50G] = SPEED_50000,
[NFP_NET_CFG_STS_LINK_RATE_100G] = SPEED_100000,
};
unsigned int nfp_net_lr2speed(unsigned int linkrate)
{
if (linkrate < ARRAY_SIZE(lr_to_speed))
return lr_to_speed[linkrate];
return SPEED_UNKNOWN;
}
unsigned int nfp_net_speed2lr(unsigned int speed)
{
int i;
for (i = 0; i < ARRAY_SIZE(lr_to_speed); i++) {
if (speed == lr_to_speed[i])
return i;
}
return NFP_NET_CFG_STS_LINK_RATE_UNKNOWN;
}
static void nfp_net_notify_port_speed(struct nfp_port *port)
{
struct net_device *netdev = port->netdev;
struct nfp_net *nn;
u16 sts;
if (!nfp_netdev_is_nfp_net(netdev))
return;
nn = netdev_priv(netdev);
sts = nn_readw(nn, NFP_NET_CFG_STS);
if (!(sts & NFP_NET_CFG_STS_LINK)) {
nn_writew(nn, NFP_NET_CFG_STS_NSP_LINK_RATE, NFP_NET_CFG_STS_LINK_RATE_UNKNOWN);
return;
}
nn_writew(nn, NFP_NET_CFG_STS_NSP_LINK_RATE, nfp_net_speed2lr(port->eth_port->speed));
}
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));
nfp_net_notify_port_speed(port);
return 0;
}
int nfp_net_refresh_port_table_sync(struct nfp_pf *pf)
{
struct devlink *devlink = priv_to_devlink(pf);
struct nfp_eth_table *eth_table;
struct nfp_net *nn, *next;
struct nfp_port *port;
int err;
devl_assert_locked(devlink);
/* 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);
struct devlink *devlink = priv_to_devlink(pf);
devl_lock(devlink);
nfp_net_refresh_port_table_sync(pf);
devl_unlock(devlink);
}
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.extend & NFP_NET_CFG_VERSION_RESERVED_MASK ||
fw_ver.class != NFP_NET_CFG_VERSION_CLASS_GENERIC) {
nfp_err(pf->cpp, "Unknown Firmware ABI %d.%d.%d.%d\n",
fw_ver.extend, 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.extend, 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 = nfp_shared_buf_register(pf);
if (err)
goto err_devlink_unreg;
devl_lock(devlink);
err = nfp_devlink_params_register(pf);
if (err)
goto err_shared_buf_unreg;
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;
devl_unlock(devlink);
devlink_register(devlink);
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);
nfp_devlink_params_unregister(pf);
err_shared_buf_unreg:
devl_unlock(devlink);
nfp_shared_buf_unregister(pf);
err_devlink_unreg:
cancel_work_sync(&pf->port_refresh_work);
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 devlink *devlink = priv_to_devlink(pf);
struct nfp_net *nn, *next;
devlink_unregister(priv_to_devlink(pf));
devl_lock(devlink);
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);
nfp_devlink_params_unregister(pf);
devl_unlock(devlink);
nfp_shared_buf_unregister(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);
}
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