// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/* Copyright (C) 2015-2018 Netronome Systems, Inc. */
/*
* nfp_main.c
* Authors: Jakub Kicinski <[email protected]>
* Alejandro Lucero <[email protected]>
* Jason McMullan <[email protected]>
* Rolf Neugebauer <[email protected]>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/pci.h>
#include <linux/firmware.h>
#include <linux/vmalloc.h>
#include <net/devlink.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_abi.h"
#include "nfp_app.h"
#include "nfp_main.h"
#include "nfp_net.h"
static const char nfp_driver_name[] = "nfp";
static const struct pci_device_id nfp_pci_device_ids[] = {
{ PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NFP3800,
PCI_VENDOR_ID_NETRONOME, PCI_ANY_ID,
PCI_ANY_ID, 0, NFP_DEV_NFP3800,
},
{ PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NFP4000,
PCI_VENDOR_ID_NETRONOME, PCI_ANY_ID,
PCI_ANY_ID, 0, NFP_DEV_NFP6000,
},
{ PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NFP5000,
PCI_VENDOR_ID_NETRONOME, PCI_ANY_ID,
PCI_ANY_ID, 0, NFP_DEV_NFP6000,
},
{ PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NFP6000,
PCI_VENDOR_ID_NETRONOME, PCI_ANY_ID,
PCI_ANY_ID, 0, NFP_DEV_NFP6000,
},
{ PCI_VENDOR_ID_CORIGINE, PCI_DEVICE_ID_NFP3800,
PCI_VENDOR_ID_CORIGINE, PCI_ANY_ID,
PCI_ANY_ID, 0, NFP_DEV_NFP3800,
},
{ PCI_VENDOR_ID_CORIGINE, PCI_DEVICE_ID_NFP4000,
PCI_VENDOR_ID_CORIGINE, PCI_ANY_ID,
PCI_ANY_ID, 0, NFP_DEV_NFP6000,
},
{ PCI_VENDOR_ID_CORIGINE, PCI_DEVICE_ID_NFP5000,
PCI_VENDOR_ID_CORIGINE, PCI_ANY_ID,
PCI_ANY_ID, 0, NFP_DEV_NFP6000,
},
{ PCI_VENDOR_ID_CORIGINE, PCI_DEVICE_ID_NFP6000,
PCI_VENDOR_ID_CORIGINE, PCI_ANY_ID,
PCI_ANY_ID, 0, NFP_DEV_NFP6000,
},
{ 0, } /* Required last entry. */
};
MODULE_DEVICE_TABLE(pci, nfp_pci_device_ids);
int nfp_pf_rtsym_read_optional(struct nfp_pf *pf, const char *format,
unsigned int default_val)
{
char name[256];
int err = 0;
u64 val;
snprintf(name, sizeof(name), format, nfp_cppcore_pcie_unit(pf->cpp));
val = nfp_rtsym_read_le(pf->rtbl, name, &err);
if (err) {
if (err == -ENOENT)
return default_val;
nfp_err(pf->cpp, "Unable to read symbol %s\n", name);
return err;
}
return val;
}
u8 __iomem *
nfp_pf_map_rtsym(struct nfp_pf *pf, const char *name, const char *sym_fmt,
unsigned int min_size, struct nfp_cpp_area **area)
{
char pf_symbol[256];
snprintf(pf_symbol, sizeof(pf_symbol), sym_fmt,
nfp_cppcore_pcie_unit(pf->cpp));
return nfp_rtsym_map(pf->rtbl, pf_symbol, name, min_size, area);
}
/* Callers should hold the devlink instance lock */
int nfp_mbox_cmd(struct nfp_pf *pf, u32 cmd, void *in_data, u64 in_length,
void *out_data, u64 out_length)
{
unsigned long err_at;
u64 max_data_sz;
u32 val = 0;
int n, err;
if (!pf->mbox)
return -EOPNOTSUPP;
max_data_sz = nfp_rtsym_size(pf->mbox) - NFP_MBOX_SYM_MIN_SIZE;
/* Check if cmd field is clear */
err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_CMD, &val);
if (err || val) {
nfp_warn(pf->cpp, "failed to issue command (%u): %u, err: %d\n",
cmd, val, err);
return err ?: -EBUSY;
}
in_length = min(in_length, max_data_sz);
n = nfp_rtsym_write(pf->cpp, pf->mbox, NFP_MBOX_DATA, in_data,
in_length);
if (n != in_length)
return -EIO;
/* Write data_len and wipe reserved */
err = nfp_rtsym_writeq(pf->cpp, pf->mbox, NFP_MBOX_DATA_LEN, in_length);
if (err)
return err;
/* Read back for ordering */
err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_DATA_LEN, &val);
if (err)
return err;
/* Write cmd and wipe return value */
err = nfp_rtsym_writeq(pf->cpp, pf->mbox, NFP_MBOX_CMD, cmd);
if (err)
return err;
err_at = jiffies + 5 * HZ;
while (true) {
/* Wait for command to go to 0 (NFP_MBOX_NO_CMD) */
err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_CMD, &val);
if (err)
return err;
if (!val)
break;
if (time_is_before_eq_jiffies(err_at))
return -ETIMEDOUT;
msleep(5);
}
/* Copy output if any (could be error info, do it before reading ret) */
err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_DATA_LEN, &val);
if (err)
return err;
out_length = min_t(u32, val, min(out_length, max_data_sz));
n = nfp_rtsym_read(pf->cpp, pf->mbox, NFP_MBOX_DATA,
out_data, out_length);
if (n != out_length)
return -EIO;
/* Check if there is an error */
err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_RET, &val);
if (err)
return err;
if (val)
return -val;
return out_length;
}
static bool nfp_board_ready(struct nfp_pf *pf)
{
const char *cp;
long state;
int err;
cp = nfp_hwinfo_lookup(pf->hwinfo, "board.state");
if (!cp)
return false;
err = kstrtol(cp, 0, &state);
if (err < 0)
return false;
return state == 15;
}
static int nfp_pf_board_state_wait(struct nfp_pf *pf)
{
const unsigned long wait_until = jiffies + 10 * HZ;
while (!nfp_board_ready(pf)) {
if (time_is_before_eq_jiffies(wait_until)) {
nfp_err(pf->cpp, "NFP board initialization timeout\n");
return -EINVAL;
}
nfp_info(pf->cpp, "waiting for board initialization\n");
if (msleep_interruptible(500))
return -ERESTARTSYS;
/* Refresh cached information */
kfree(pf->hwinfo);
pf->hwinfo = nfp_hwinfo_read(pf->cpp);
}
return 0;
}
static int nfp_pcie_sriov_read_nfd_limit(struct nfp_pf *pf)
{
int err;
pf->limit_vfs = nfp_rtsym_read_le(pf->rtbl, "nfd_vf_cfg_max_vfs", &err);
if (err) {
/* For backwards compatibility if symbol not found allow all */
pf->limit_vfs = ~0;
if (err == -ENOENT)
return 0;
nfp_warn(pf->cpp, "Warning: VF limit read failed: %d\n", err);
return err;
}
err = pci_sriov_set_totalvfs(pf->pdev, pf->limit_vfs);
if (err)
nfp_warn(pf->cpp, "Failed to set VF count in sysfs: %d\n", err);
return 0;
}
static int nfp_pcie_sriov_enable(struct pci_dev *pdev, int num_vfs)
{
#ifdef CONFIG_PCI_IOV
struct nfp_pf *pf = pci_get_drvdata(pdev);
struct devlink *devlink;
int err;
if (num_vfs > pf->limit_vfs) {
nfp_info(pf->cpp, "Firmware limits number of VFs to %u\n",
pf->limit_vfs);
return -EINVAL;
}
err = pci_enable_sriov(pdev, num_vfs);
if (err) {
dev_warn(&pdev->dev, "Failed to enable PCI SR-IOV: %d\n", err);
return err;
}
devlink = priv_to_devlink(pf);
devl_lock(devlink);
err = nfp_app_sriov_enable(pf->app, num_vfs);
if (err) {
dev_warn(&pdev->dev,
"App specific PCI SR-IOV configuration failed: %d\n",
err);
goto err_sriov_disable;
}
pf->num_vfs = num_vfs;
dev_dbg(&pdev->dev, "Created %d VFs.\n", pf->num_vfs);
devl_unlock(devlink);
return num_vfs;
err_sriov_disable:
devl_unlock(devlink);
pci_disable_sriov(pdev);
return err;
#endif
return 0;
}
static int nfp_pcie_sriov_disable(struct pci_dev *pdev)
{
#ifdef CONFIG_PCI_IOV
struct nfp_pf *pf = pci_get_drvdata(pdev);
struct devlink *devlink;
devlink = priv_to_devlink(pf);
devl_lock(devlink);
/* If the VFs are assigned we cannot shut down SR-IOV without
* causing issues, so just leave the hardware available but
* disabled
*/
if (pci_vfs_assigned(pdev)) {
dev_warn(&pdev->dev, "Disabling while VFs assigned - VFs will not be deallocated\n");
devl_unlock(devlink);
return -EPERM;
}
nfp_app_sriov_disable(pf->app);
pf->num_vfs = 0;
devl_unlock(devlink);
pci_disable_sriov(pdev);
dev_dbg(&pdev->dev, "Removed VFs.\n");
#endif
return 0;
}
static int nfp_pcie_sriov_configure(struct pci_dev *pdev, int num_vfs)
{
if (!pci_get_drvdata(pdev))
return -ENOENT;
if (num_vfs == 0)
return nfp_pcie_sriov_disable(pdev);
else
return nfp_pcie_sriov_enable(pdev, num_vfs);
}
int nfp_flash_update_common(struct nfp_pf *pf, const struct firmware *fw,
struct netlink_ext_ack *extack)
{
struct device *dev = &pf->pdev->dev;
struct nfp_nsp *nsp;
int err;
nsp = nfp_nsp_open(pf->cpp);
if (IS_ERR(nsp)) {
err = PTR_ERR(nsp);
if (extack)
NL_SET_ERR_MSG_MOD(extack, "can't access NSP");
else
dev_err(dev, "Failed to access the NSP: %d\n", err);
return err;
}
err = nfp_nsp_write_flash(nsp, fw);
if (err < 0)
goto exit_close_nsp;
dev_info(dev, "Finished writing flash image\n");
err = 0;
exit_close_nsp:
nfp_nsp_close(nsp);
return err;
}
static const struct firmware *
nfp_net_fw_request(struct pci_dev *pdev, struct nfp_pf *pf, const char *name)
{
const struct firmware *fw = NULL;
int err;
err = request_firmware_direct(&fw, name, &pdev->dev);
nfp_info(pf->cpp, " %s: %s\n",
name, err ? "not found" : "found");
if (err)
return NULL;
return fw;
}
/**
* nfp_net_fw_find() - Find the correct firmware image for netdev mode
* @pdev: PCI Device structure
* @pf: NFP PF Device structure
*
* Return: firmware if found and requested successfully.
*/
static const struct firmware *
nfp_net_fw_find(struct pci_dev *pdev, struct nfp_pf *pf)
{
struct nfp_eth_table_port *port;
const struct firmware *fw;
const char *fw_model;
char fw_name[256];
const u8 *serial;
u16 interface;
int spc, i, j;
nfp_info(pf->cpp, "Looking for firmware file in order of priority:\n");
/* First try to find a firmware image specific for this device */
interface = nfp_cpp_interface(pf->cpp);
nfp_cpp_serial(pf->cpp, &serial);
sprintf(fw_name, "netronome/serial-%pMF-%02x-%02x.nffw",
serial, interface >> 8, interface & 0xff);
fw = nfp_net_fw_request(pdev, pf, fw_name);
if (fw)
return fw;
/* Then try the PCI name */
sprintf(fw_name, "netronome/pci-%s.nffw", pci_name(pdev));
fw = nfp_net_fw_request(pdev, pf, fw_name);
if (fw)
return fw;
/* Finally try the card type and media */
if (!pf->eth_tbl) {
dev_err(&pdev->dev, "Error: can't identify media config\n");
return NULL;
}
fw_model = nfp_hwinfo_lookup(pf->hwinfo, "nffw.partno");
if (!fw_model)
fw_model = nfp_hwinfo_lookup(pf->hwinfo, "assembly.partno");
if (!fw_model) {
dev_err(&pdev->dev, "Error: can't read part number\n");
return NULL;
}
spc = ARRAY_SIZE(fw_name);
spc -= snprintf(fw_name, spc, "netronome/nic_%s", fw_model);
for (i = 0; spc > 0 && i < pf->eth_tbl->count; i += j) {
port = &pf->eth_tbl->ports[i];
j = 1;
while (i + j < pf->eth_tbl->count &&
port->speed == port[j].speed)
j++;
spc -= snprintf(&fw_name[ARRAY_SIZE(fw_name) - spc], spc,
"_%dx%d", j, port->speed / 1000);
}
if (spc <= 0)
return NULL;
spc -= snprintf(&fw_name[ARRAY_SIZE(fw_name) - spc], spc, ".nffw");
if (spc <= 0)
return NULL;
return nfp_net_fw_request(pdev, pf, fw_name);
}
static int
nfp_get_fw_policy_value(struct pci_dev *pdev, struct nfp_nsp *nsp,
const char *key, const char *default_val, int max_val,
int *value)
{
char hwinfo[64];
long hi_val;
int err;
snprintf(hwinfo, sizeof(hwinfo), key);
err = nfp_nsp_hwinfo_lookup_optional(nsp, hwinfo, sizeof(hwinfo),
default_val);
if (err)
return err;
err = kstrtol(hwinfo, 0, &hi_val);
if (err || hi_val < 0 || hi_val > max_val) {
dev_warn(&pdev->dev,
"Invalid value '%s' from '%s', ignoring\n",
hwinfo, key);
err = kstrtol(default_val, 0, &hi_val);
}
*value = hi_val;
return err;
}
/**
* nfp_fw_load() - Load the firmware image
* @pdev: PCI Device structure
* @pf: NFP PF Device structure
* @nsp: NFP SP handle
*
* Return: -ERRNO, 0 for no firmware loaded, 1 for firmware loaded
*/
static int
nfp_fw_load(struct pci_dev *pdev, struct nfp_pf *pf, struct nfp_nsp *nsp)
{
bool do_reset, fw_loaded = false;
const struct firmware *fw = NULL;
int err, reset, policy, ifcs = 0;
char *token, *ptr;
char hwinfo[64];
u16 interface;
snprintf(hwinfo, sizeof(hwinfo), "abi_drv_load_ifc");
err = nfp_nsp_hwinfo_lookup_optional(nsp, hwinfo, sizeof(hwinfo),
NFP_NSP_DRV_LOAD_IFC_DEFAULT);
if (err)
return err;
interface = nfp_cpp_interface(pf->cpp);
ptr = hwinfo;
while ((token = strsep(&ptr, ","))) {
unsigned long interface_hi;
err = kstrtoul(token, 0, &interface_hi);
if (err) {
dev_err(&pdev->dev,
"Failed to parse interface '%s': %d\n",
token, err);
return err;
}
ifcs++;
if (interface == interface_hi)
break;
}
if (!token) {
dev_info(&pdev->dev, "Firmware will be loaded by partner\n");
return 0;
}
err = nfp_get_fw_policy_value(pdev, nsp, "abi_drv_reset",
NFP_NSP_DRV_RESET_DEFAULT,
NFP_NSP_DRV_RESET_NEVER, &reset);
if (err)
return err;
err = nfp_get_fw_policy_value(pdev, nsp, "app_fw_from_flash",
NFP_NSP_APP_FW_LOAD_DEFAULT,
NFP_NSP_APP_FW_LOAD_PREF, &policy);
if (err)
return err;
fw = nfp_net_fw_find(pdev, pf);
do_reset = reset == NFP_NSP_DRV_RESET_ALWAYS ||
(fw && reset == NFP_NSP_DRV_RESET_DISK);
if (do_reset) {
dev_info(&pdev->dev, "Soft-resetting the NFP\n");
err = nfp_nsp_device_soft_reset(nsp);
if (err < 0) {
dev_err(&pdev->dev,
"Failed to soft reset the NFP: %d\n", err);
goto exit_release_fw;
}
}
if (fw && policy != NFP_NSP_APP_FW_LOAD_FLASH) {
if (nfp_nsp_has_fw_loaded(nsp) && nfp_nsp_fw_loaded(nsp))
goto exit_release_fw;
err = nfp_nsp_load_fw(nsp, fw);
if (err < 0) {
dev_err(&pdev->dev, "FW loading failed: %d\n",
err);
goto exit_release_fw;
}
dev_info(&pdev->dev, "Finished loading FW image\n");
fw_loaded = true;
} else if (policy != NFP_NSP_APP_FW_LOAD_DISK &&
nfp_nsp_has_stored_fw_load(nsp)) {
/* Don't propagate this error to stick with legacy driver
* behavior, failure will be detected later during init.
*/
if (!nfp_nsp_load_stored_fw(nsp))
dev_info(&pdev->dev, "Finished loading stored FW image\n");
/* Don't flag the fw_loaded in this case since other devices
* may reuse the firmware when configured this way
*/
} else {
dev_warn(&pdev->dev, "Didn't load firmware, please update flash or reconfigure card\n");
}
exit_release_fw:
release_firmware(fw);
/* We don't want to unload firmware when other devices may still be
* dependent on it, which could be the case if there are multiple
* devices that could load firmware.
*/
if (fw_loaded && ifcs == 1)
pf->unload_fw_on_remove = true;
return err < 0 ? err : fw_loaded;
}
static void
nfp_nsp_init_ports(struct pci_dev *pdev, struct nfp_pf *pf,
struct nfp_nsp *nsp)
{
bool needs_reinit = false;
int i;
pf->eth_tbl = __nfp_eth_read_ports(pf->cpp, nsp);
if (!pf->eth_tbl)
return;
if (!nfp_nsp_has_mac_reinit(nsp))
return;
for (i = 0; i < pf->eth_tbl->count; i++)
needs_reinit |= pf->eth_tbl->ports[i].override_changed;
if (!needs_reinit)
return;
kfree(pf->eth_tbl);
if (nfp_nsp_mac_reinit(nsp))
dev_warn(&pdev->dev, "MAC reinit failed\n");
pf->eth_tbl = __nfp_eth_read_ports(pf->cpp, nsp);
}
static int nfp_nsp_init(struct pci_dev *pdev, struct nfp_pf *pf)
{
struct nfp_nsp *nsp;
int err;
err = nfp_resource_wait(pf->cpp, NFP_RESOURCE_NSP, 30);
if (err)
return err;
nsp = nfp_nsp_open(pf->cpp);
if (IS_ERR(nsp)) {
err = PTR_ERR(nsp);
dev_err(&pdev->dev, "Failed to access the NSP: %d\n", err);
return err;
}
err = nfp_nsp_wait(nsp);
if (err < 0)
goto exit_close_nsp;
nfp_nsp_init_ports(pdev, pf, nsp);
pf->nspi = __nfp_nsp_identify(nsp);
if (pf->nspi)
dev_info(&pdev->dev, "BSP: %s\n", pf->nspi->version);
err = nfp_fw_load(pdev, pf, nsp);
if (err < 0) {
kfree(pf->nspi);
kfree(pf->eth_tbl);
dev_err(&pdev->dev, "Failed to load FW\n");
goto exit_close_nsp;
}
pf->fw_loaded = !!err;
err = 0;
exit_close_nsp:
nfp_nsp_close(nsp);
return err;
}
static void nfp_fw_unload(struct nfp_pf *pf)
{
struct nfp_nsp *nsp;
int err;
nsp = nfp_nsp_open(pf->cpp);
if (IS_ERR(nsp)) {
nfp_err(pf->cpp, "Reset failed, can't open NSP\n");
return;
}
err = nfp_nsp_device_soft_reset(nsp);
if (err < 0)
dev_warn(&pf->pdev->dev, "Couldn't unload firmware: %d\n", err);
else
dev_info(&pf->pdev->dev, "Firmware safely unloaded\n");
nfp_nsp_close(nsp);
}
static int nfp_pf_find_rtsyms(struct nfp_pf *pf)
{
char pf_symbol[256];
unsigned int pf_id;
pf_id = nfp_cppcore_pcie_unit(pf->cpp);
/* Optional per-PCI PF mailbox */
snprintf(pf_symbol, sizeof(pf_symbol), NFP_MBOX_SYM_NAME, pf_id);
pf->mbox = nfp_rtsym_lookup(pf->rtbl, pf_symbol);
if (pf->mbox && nfp_rtsym_size(pf->mbox) < NFP_MBOX_SYM_MIN_SIZE) {
nfp_err(pf->cpp, "PF mailbox symbol too small: %llu < %d\n",
nfp_rtsym_size(pf->mbox), NFP_MBOX_SYM_MIN_SIZE);
return -EINVAL;
}
return 0;
}
int nfp_net_pf_get_app_id(struct nfp_pf *pf)
{
return nfp_pf_rtsym_read_optional(pf, "_pf%u_net_app_id",
NFP_APP_CORE_NIC);
}
static u64 nfp_net_pf_get_app_cap(struct nfp_pf *pf)
{
char name[32];
int err = 0;
u64 val;
snprintf(name, sizeof(name), "_pf%u_net_app_cap", nfp_cppcore_pcie_unit(pf->cpp));
val = nfp_rtsym_read_le(pf->rtbl, name, &err);
if (err) {
if (err != -ENOENT)
nfp_err(pf->cpp, "Unable to read symbol %s\n", name);
return 0;
}
return val;
}
static void nfp_pf_cfg_hwinfo(struct nfp_pf *pf)
{
struct nfp_nsp *nsp;
char hwinfo[32];
bool sp_indiff;
int err;
nsp = nfp_nsp_open(pf->cpp);
if (IS_ERR(nsp))
return;
if (!nfp_nsp_has_hwinfo_set(nsp))
goto end;
sp_indiff = (nfp_net_pf_get_app_id(pf) == NFP_APP_FLOWER_NIC) ||
(nfp_net_pf_get_app_cap(pf) & NFP_NET_APP_CAP_SP_INDIFF);
/* No need to clean `sp_indiff` in driver, management firmware
* will do it when application firmware is unloaded.
*/
snprintf(hwinfo, sizeof(hwinfo), "sp_indiff=%d", sp_indiff);
err = nfp_nsp_hwinfo_set(nsp, hwinfo, sizeof(hwinfo));
/* Not a fatal error, no need to return error to stop driver from loading */
if (err) {
nfp_warn(pf->cpp, "HWinfo(sp_indiff=%d) set failed: %d\n", sp_indiff, err);
} else {
/* Need reinit eth_tbl since the eth table state may change
* after sp_indiff is configured.
*/
kfree(pf->eth_tbl);
pf->eth_tbl = __nfp_eth_read_ports(pf->cpp, nsp);
}
end:
nfp_nsp_close(nsp);
}
static int nfp_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *pci_id)
{
const struct nfp_dev_info *dev_info;
struct devlink *devlink;
struct nfp_pf *pf;
int err;
if ((pdev->vendor == PCI_VENDOR_ID_NETRONOME ||
pdev->vendor == PCI_VENDOR_ID_CORIGINE) &&
(pdev->device == PCI_DEVICE_ID_NFP3800_VF ||
pdev->device == PCI_DEVICE_ID_NFP6000_VF))
dev_warn(&pdev->dev, "Binding NFP VF device to the NFP PF driver, the VF driver is called 'nfp_netvf'\n");
dev_info = &nfp_dev_info[pci_id->driver_data];
err = pci_enable_device(pdev);
if (err < 0)
return err;
pci_set_master(pdev);
err = dma_set_mask_and_coherent(&pdev->dev, dev_info->dma_mask);
if (err)
goto err_pci_disable;
err = pci_request_regions(pdev, nfp_driver_name);
if (err < 0) {
dev_err(&pdev->dev, "Unable to reserve pci resources.\n");
goto err_pci_disable;
}
devlink = devlink_alloc(&nfp_devlink_ops, sizeof(*pf), &pdev->dev);
if (!devlink) {
err = -ENOMEM;
goto err_rel_regions;
}
pf = devlink_priv(devlink);
INIT_LIST_HEAD(&pf->vnics);
INIT_LIST_HEAD(&pf->ports);
pci_set_drvdata(pdev, pf);
pf->pdev = pdev;
pf->dev_info = dev_info;
pf->wq = alloc_workqueue("nfp-%s", 0, 2, pci_name(pdev));
if (!pf->wq) {
err = -ENOMEM;
goto err_pci_priv_unset;
}
pf->cpp = nfp_cpp_from_nfp6000_pcie(pdev, dev_info);
if (IS_ERR(pf->cpp)) {
err = PTR_ERR(pf->cpp);
goto err_disable_msix;
}
err = nfp_resource_table_init(pf->cpp);
if (err)
goto err_cpp_free;
pf->hwinfo = nfp_hwinfo_read(pf->cpp);
dev_info(&pdev->dev, "Assembly: %s%s%s-%s CPLD: %s\n",
nfp_hwinfo_lookup(pf->hwinfo, "assembly.vendor"),
nfp_hwinfo_lookup(pf->hwinfo, "assembly.partno"),
nfp_hwinfo_lookup(pf->hwinfo, "assembly.serial"),
nfp_hwinfo_lookup(pf->hwinfo, "assembly.revision"),
nfp_hwinfo_lookup(pf->hwinfo, "cpld.version"));
err = nfp_pf_board_state_wait(pf);
if (err)
goto err_hwinfo_free;
err = nfp_nsp_init(pdev, pf);
if (err)
goto err_hwinfo_free;
pf->mip = nfp_mip_open(pf->cpp);
pf->rtbl = __nfp_rtsym_table_read(pf->cpp, pf->mip);
err = nfp_pf_find_rtsyms(pf);
if (err)
goto err_fw_unload;
pf->dump_flag = NFP_DUMP_NSP_DIAG;
pf->dumpspec = nfp_net_dump_load_dumpspec(pf->cpp, pf->rtbl);
err = nfp_pcie_sriov_read_nfd_limit(pf);
if (err)
goto err_fw_unload;
pf->num_vfs = pci_num_vf(pdev);
if (pf->num_vfs > pf->limit_vfs) {
dev_err(&pdev->dev,
"Error: %d VFs already enabled, but loaded FW can only support %d\n",
pf->num_vfs, pf->limit_vfs);
err = -EINVAL;
goto err_fw_unload;
}
nfp_pf_cfg_hwinfo(pf);
err = nfp_net_pci_probe(pf);
if (err)
goto err_fw_unload;
err = nfp_hwmon_register(pf);
if (err) {
dev_err(&pdev->dev, "Failed to register hwmon info\n");
goto err_net_remove;
}
return 0;
err_net_remove:
nfp_net_pci_remove(pf);
err_fw_unload:
kfree(pf->rtbl);
nfp_mip_close(pf->mip);
if (pf->unload_fw_on_remove)
nfp_fw_unload(pf);
kfree(pf->eth_tbl);
kfree(pf->nspi);
vfree(pf->dumpspec);
err_hwinfo_free:
kfree(pf->hwinfo);
err_cpp_free:
nfp_cpp_free(pf->cpp);
err_disable_msix:
destroy_workqueue(pf->wq);
err_pci_priv_unset:
pci_set_drvdata(pdev, NULL);
devlink_free(devlink);
err_rel_regions:
pci_release_regions(pdev);
err_pci_disable:
pci_disable_device(pdev);
return err;
}
static void __nfp_pci_shutdown(struct pci_dev *pdev, bool unload_fw)
{
struct nfp_pf *pf;
pf = pci_get_drvdata(pdev);
if (!pf)
return;
nfp_hwmon_unregister(pf);
nfp_pcie_sriov_disable(pdev);
nfp_net_pci_remove(pf);
vfree(pf->dumpspec);
kfree(pf->rtbl);
nfp_mip_close(pf->mip);
if (unload_fw && pf->unload_fw_on_remove)
nfp_fw_unload(pf);
destroy_workqueue(pf->wq);
pci_set_drvdata(pdev, NULL);
kfree(pf->hwinfo);
nfp_cpp_free(pf->cpp);
kfree(pf->eth_tbl);
kfree(pf->nspi);
devlink_free(priv_to_devlink(pf));
pci_release_regions(pdev);
pci_disable_device(pdev);
}
static void nfp_pci_remove(struct pci_dev *pdev)
{
__nfp_pci_shutdown(pdev, true);
}
static void nfp_pci_shutdown(struct pci_dev *pdev)
{
__nfp_pci_shutdown(pdev, false);
}
static struct pci_driver nfp_pci_driver = {
.name = nfp_driver_name,
.id_table = nfp_pci_device_ids,
.probe = nfp_pci_probe,
.remove = nfp_pci_remove,
.shutdown = nfp_pci_shutdown,
.sriov_configure = nfp_pcie_sriov_configure,
};
static int __init nfp_main_init(void)
{
int err;
pr_info("%s: NFP PCIe Driver, Copyright (C) 2014-2020 Netronome Systems\n",
nfp_driver_name);
pr_info("%s: NFP PCIe Driver, Copyright (C) 2021-2022 Corigine Inc.\n",
nfp_driver_name);
nfp_net_debugfs_create();
err = pci_register_driver(&nfp_pci_driver);
if (err < 0)
goto err_destroy_debugfs;
err = pci_register_driver(&nfp_netvf_pci_driver);
if (err)
goto err_unreg_pf;
return err;
err_unreg_pf:
pci_unregister_driver(&nfp_pci_driver);
err_destroy_debugfs:
nfp_net_debugfs_destroy();
return err;
}
static void __exit nfp_main_exit(void)
{
pci_unregister_driver(&nfp_netvf_pci_driver);
pci_unregister_driver(&nfp_pci_driver);
nfp_net_debugfs_destroy();
}
module_init(nfp_main_init);
module_exit(nfp_main_exit);
MODULE_FIRMWARE("netronome/nic_AMDA0058-0011_2x40.nffw");
MODULE_FIRMWARE("netronome/nic_AMDA0058-0012_2x40.nffw");
MODULE_FIRMWARE("netronome/nic_AMDA0081-0001_1x40.nffw");
MODULE_FIRMWARE("netronome/nic_AMDA0081-0001_4x10.nffw");
MODULE_FIRMWARE("netronome/nic_AMDA0096-0001_2x10.nffw");
MODULE_FIRMWARE("netronome/nic_AMDA0097-0001_2x40.nffw");
MODULE_FIRMWARE("netronome/nic_AMDA0097-0001_4x10_1x40.nffw");
MODULE_FIRMWARE("netronome/nic_AMDA0097-0001_8x10.nffw");
MODULE_FIRMWARE("netronome/nic_AMDA0099-0001_2x10.nffw");
MODULE_FIRMWARE("netronome/nic_AMDA0099-0001_2x25.nffw");
MODULE_FIRMWARE("netronome/nic_AMDA0099-0001_1x10_1x25.nffw");
MODULE_AUTHOR("Corigine, Inc. <[email protected]>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("The Network Flow Processor (NFP) driver.");
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