Commit fa34a514 authored by Alejandro Lucero's avatar Alejandro Lucero Committed by Paolo Abeni

sfc: add devlink support for ef100

Add devlink infrastructure support. Further patches add devlink
info and devlink port support.
Signed-off-by: default avatarAlejandro Lucero <alejandro.lucero-palau@amd.com>
Reviewed-by: default avatarJiri Pirko <jiri@nvidia.com>
Acked-by: default avatarMartin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent e9ab2559
......@@ -22,6 +22,7 @@ config SFC
depends on PTP_1588_CLOCK_OPTIONAL
select MDIO
select CRC32
select NET_DEVLINK
help
This driver supports 10/40-gigabit Ethernet cards based on
the Solarflare SFC9100-family controllers.
......
......@@ -6,7 +6,8 @@ sfc-y += efx.o efx_common.o efx_channels.o nic.o \
mcdi.o mcdi_port.o mcdi_port_common.o \
mcdi_functions.o mcdi_filters.o mcdi_mon.o \
ef100.o ef100_nic.o ef100_netdev.o \
ef100_ethtool.o ef100_rx.o ef100_tx.o
ef100_ethtool.o ef100_rx.o ef100_tx.o \
efx_devlink.o
sfc-$(CONFIG_SFC_MTD) += mtd.o
sfc-$(CONFIG_SFC_SRIOV) += sriov.o ef10_sriov.o ef100_sriov.o ef100_rep.o \
mae.o tc.o tc_bindings.o tc_counters.o
......
......@@ -24,6 +24,7 @@
#include "rx_common.h"
#include "ef100_sriov.h"
#include "tc_bindings.h"
#include "efx_devlink.h"
static void ef100_update_name(struct efx_nic *efx)
{
......@@ -332,6 +333,7 @@ void ef100_remove_netdev(struct efx_probe_data *probe_data)
efx_ef100_pci_sriov_disable(efx, true);
#endif
efx_fini_devlink_lock(efx);
ef100_unregister_netdev(efx);
#ifdef CONFIG_SFC_SRIOV
......@@ -345,6 +347,8 @@ void ef100_remove_netdev(struct efx_probe_data *probe_data)
kfree(efx->phy_data);
efx->phy_data = NULL;
efx_fini_devlink_and_unlock(efx);
free_netdev(efx->net_dev);
efx->net_dev = NULL;
efx->state = STATE_PROBED;
......@@ -405,6 +409,11 @@ int ef100_probe_netdev(struct efx_probe_data *probe_data)
/* Don't fail init if RSS setup doesn't work. */
efx_mcdi_push_default_indir_table(efx, efx->n_rx_channels);
/* devlink creation, registration and lock */
rc = efx_probe_devlink_and_lock(efx);
if (rc)
pci_info(efx->pci_dev, "devlink registration failed");
rc = ef100_register_netdev(efx);
if (rc)
goto fail;
......@@ -424,5 +433,6 @@ int ef100_probe_netdev(struct efx_probe_data *probe_data)
}
fail:
efx_probe_devlink_unlock(efx);
return rc;
}
// SPDX-License-Identifier: GPL-2.0-only
/****************************************************************************
* Driver for AMD network controllers and boards
* Copyright (C) 2023, Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
#include "net_driver.h"
#include "efx_devlink.h"
struct efx_devlink {
struct efx_nic *efx;
};
static const struct devlink_ops sfc_devlink_ops = {
};
void efx_fini_devlink_lock(struct efx_nic *efx)
{
if (efx->devlink)
devl_lock(efx->devlink);
}
void efx_fini_devlink_and_unlock(struct efx_nic *efx)
{
if (efx->devlink) {
devl_unregister(efx->devlink);
devl_unlock(efx->devlink);
devlink_free(efx->devlink);
efx->devlink = NULL;
}
}
int efx_probe_devlink_and_lock(struct efx_nic *efx)
{
struct efx_devlink *devlink_private;
if (efx->type->is_vf)
return 0;
efx->devlink = devlink_alloc(&sfc_devlink_ops,
sizeof(struct efx_devlink),
&efx->pci_dev->dev);
if (!efx->devlink)
return -ENOMEM;
devl_lock(efx->devlink);
devlink_private = devlink_priv(efx->devlink);
devlink_private->efx = efx;
devl_register(efx->devlink);
return 0;
}
void efx_probe_devlink_unlock(struct efx_nic *efx)
{
if (!efx->devlink)
return;
devl_unlock(efx->devlink);
}
/* SPDX-License-Identifier: GPL-2.0-only */
/****************************************************************************
* Driver for AMD network controllers and boards
* Copyright (C) 2023, Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
#ifndef _EFX_DEVLINK_H
#define _EFX_DEVLINK_H
#include "net_driver.h"
#include <net/devlink.h>
int efx_probe_devlink_and_lock(struct efx_nic *efx);
void efx_probe_devlink_unlock(struct efx_nic *efx);
void efx_fini_devlink_lock(struct efx_nic *efx);
void efx_fini_devlink_and_unlock(struct efx_nic *efx);
#endif /* _EFX_DEVLINK_H */
......@@ -994,6 +994,7 @@ enum efx_xdp_tx_queues_mode {
* xdp_rxq_info structures?
* @netdev_notifier: Netdevice notifier.
* @tc: state for TC offload (EF100).
* @devlink: reference to devlink structure owned by this device
* @mem_bar: The BAR that is mapped into membase.
* @reg_base: Offset from the start of the bar to the function control window.
* @monitor_work: Hardware monitor workitem
......@@ -1179,6 +1180,7 @@ struct efx_nic {
struct notifier_block netdev_notifier;
struct efx_tc_state *tc;
struct devlink *devlink;
unsigned int mem_bar;
u32 reg_base;
......
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