diff --git a/drivers/net/ethernet/netronome/nfp/Makefile b/drivers/net/ethernet/netronome/nfp/Makefile index 2805641965f3..d31772ae511d 100644 --- a/drivers/net/ethernet/netronome/nfp/Makefile +++ b/drivers/net/ethernet/netronome/nfp/Makefile @@ -17,6 +17,7 @@ nfp-objs := \ nfpcore/nfp_target.o \ ccm.o \ ccm_mbox.o \ + devlink_param.o \ nfp_asm.o \ nfp_app.o \ nfp_app_nic.o \ diff --git a/drivers/net/ethernet/netronome/nfp/devlink_param.c b/drivers/net/ethernet/netronome/nfp/devlink_param.c new file mode 100644 index 000000000000..aece98586e32 --- /dev/null +++ b/drivers/net/ethernet/netronome/nfp/devlink_param.c @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* Copyright (C) 2019 Netronome Systems, Inc. */ + +#include + +#include "nfpcore/nfp_nsp.h" +#include "nfp_main.h" + +static const struct devlink_param nfp_devlink_params[] = { +}; + +static int nfp_devlink_supports_params(struct nfp_pf *pf) +{ + struct nfp_nsp *nsp; + bool supported; + int err; + + nsp = nfp_nsp_open(pf->cpp); + if (IS_ERR(nsp)) { + err = PTR_ERR(nsp); + dev_err(&pf->pdev->dev, "Failed to access the NSP: %d\n", err); + return err; + } + + supported = nfp_nsp_has_hwinfo_lookup(nsp) && + nfp_nsp_has_hwinfo_set(nsp); + + nfp_nsp_close(nsp); + return supported; +} + +int nfp_devlink_params_register(struct nfp_pf *pf) +{ + struct devlink *devlink = priv_to_devlink(pf); + int err; + + err = nfp_devlink_supports_params(pf); + if (err <= 0) + return err; + + err = devlink_params_register(devlink, nfp_devlink_params, + ARRAY_SIZE(nfp_devlink_params)); + if (err) + return err; + + devlink_params_publish(devlink); + return 0; +} + +void nfp_devlink_params_unregister(struct nfp_pf *pf) +{ + int err; + + err = nfp_devlink_supports_params(pf); + if (err <= 0) + return; + + devlink_params_unregister(priv_to_devlink(pf), nfp_devlink_params, + ARRAY_SIZE(nfp_devlink_params)); +} diff --git a/drivers/net/ethernet/netronome/nfp/nfp_main.h b/drivers/net/ethernet/netronome/nfp/nfp_main.h index bd6450b0f23f..5d5812fd9317 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_main.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_main.h @@ -187,4 +187,7 @@ int nfp_shared_buf_pool_get(struct nfp_pf *pf, unsigned int sb, u16 pool_index, int nfp_shared_buf_pool_set(struct nfp_pf *pf, unsigned int sb, u16 pool_index, u32 size, enum devlink_sb_threshold_type threshold_type); + +int nfp_devlink_params_register(struct nfp_pf *pf); +void nfp_devlink_params_unregister(struct nfp_pf *pf); #endif /* NFP_MAIN_H */ diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c index 68db47d8e8b6..921db40047d7 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c @@ -709,6 +709,10 @@ int nfp_net_pci_probe(struct nfp_pf *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); @@ -742,6 +746,8 @@ err_free_vnics: 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); @@ -771,6 +777,7 @@ void nfp_net_pci_remove(struct nfp_pf *pf) mutex_unlock(&pf->lock); + nfp_devlink_params_unregister(pf); nfp_shared_buf_unregister(pf); devlink_unregister(priv_to_devlink(pf));