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// SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
/*
* Copyright (C) 2018 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
* source tree or the BSD 2-Clause License provided below. You have the
* option to license this software under the complete terms of either license.
*
* The BSD 2-Clause License:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/etherdevice.h>
#include "../nfpcore/nfp.h"
#include "../nfpcore/nfp_cpp.h"
#include "../nfpcore/nfp_nsp.h"
#include "../nfp_app.h"
#include "../nfp_main.h"
#include "../nfp_net.h"
#include "../nfp_port.h"
#include "main.h"
static void
nfp_abm_vnic_set_mac(struct nfp_pf *pf, struct nfp_abm *abm, struct nfp_net *nn,
unsigned int id)
{
struct nfp_eth_table_port *eth_port = &pf->eth_tbl->ports[id];
u8 mac_addr[ETH_ALEN];
const char *mac_str;
char name[32];
if (id > pf->eth_tbl->count) {
nfp_warn(pf->cpp, "No entry for persistent MAC address\n");
eth_hw_addr_random(nn->dp.netdev);
return;
}
snprintf(name, sizeof(name), "eth%u.mac.pf%u",
eth_port->eth_index, abm->pf_id);
mac_str = nfp_hwinfo_lookup(pf->hwinfo, name);
if (!mac_str) {
nfp_warn(pf->cpp, "Can't lookup persistent MAC address (%s)\n",
name);
eth_hw_addr_random(nn->dp.netdev);
return;
}
if (sscanf(mac_str, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
&mac_addr[0], &mac_addr[1], &mac_addr[2],
&mac_addr[3], &mac_addr[4], &mac_addr[5]) != 6) {
nfp_warn(pf->cpp, "Can't parse persistent MAC address (%s)\n",
mac_str);
eth_hw_addr_random(nn->dp.netdev);
return;
}
ether_addr_copy(nn->dp.netdev->dev_addr, mac_addr);
ether_addr_copy(nn->dp.netdev->perm_addr, mac_addr);
}
static int
nfp_abm_vnic_alloc(struct nfp_app *app, struct nfp_net *nn, unsigned int id)
{
struct nfp_abm *abm = app->priv;
struct nfp_abm_link *alink;
int err;
alink = kzalloc(sizeof(*alink), GFP_KERNEL);
if (!alink)
return -ENOMEM;
nn->app_priv = alink;
alink->abm = abm;
alink->vnic = nn;
alink->id = id;
nn->port = nfp_port_alloc(app, NFP_PORT_PHYS_PORT, nn->dp.netdev);
if (IS_ERR(nn->port)) {
err = PTR_ERR(nn->port);
goto err_free_alink;
}
err = nfp_app_nic_vnic_init_phy_port(app->pf, app, nn, id);
if (err < 0)
goto err_free_port;
if (nn->port->type == NFP_PORT_INVALID)
/* core will kill this vNIC */
return 0;
nfp_abm_vnic_set_mac(app->pf, abm, nn, id);
nfp_abm_ctrl_read_params(alink);
return 0;
err_free_port:
nfp_port_free(nn->port);
err_free_alink:
kfree(alink);
return err;
}
static void nfp_abm_vnic_free(struct nfp_app *app, struct nfp_net *nn)
{
struct nfp_abm_link *alink = nn->app_priv;
kfree(alink);
}
static int nfp_abm_init(struct nfp_app *app)
{
struct nfp_pf *pf = app->pf;
struct nfp_abm *abm;
int err;
if (!pf->eth_tbl) {
nfp_err(pf->cpp, "ABM NIC requires ETH table\n");
return -EINVAL;
}
if (pf->max_data_vnics != pf->eth_tbl->count) {
nfp_err(pf->cpp, "ETH entries don't match vNICs (%d vs %d)\n",
pf->max_data_vnics, pf->eth_tbl->count);
return -EINVAL;
}
if (!pf->mac_stats_bar) {
nfp_warn(app->cpp, "ABM NIC requires mac_stats symbol\n");
return -EINVAL;
}
abm = kzalloc(sizeof(*abm), GFP_KERNEL);
if (!abm)
return -ENOMEM;
app->priv = abm;
abm->app = app;
err = nfp_abm_ctrl_find_addrs(abm);
if (err)
goto err_free_abm;
return 0;
err_free_abm:
kfree(abm);
app->priv = NULL;
return err;
}
static void nfp_abm_clean(struct nfp_app *app)
{
struct nfp_abm *abm = app->priv;
kfree(abm);
app->priv = NULL;
}
const struct nfp_app_type app_abm = {
.id = NFP_APP_ACTIVE_BUFFER_MGMT_NIC,
.name = "abm",
.init = nfp_abm_init,
.clean = nfp_abm_clean,
.vnic_alloc = nfp_abm_vnic_alloc,
.vnic_free = nfp_abm_vnic_free,
};
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