nfp: abm: add initial active buffer management NIC skeleton (c4c8f39a) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/net/ethernet/netronome/Kconfig

+13 −0

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		@@ -36,6 +36,19 @@ config NFP_APP_FLOWER
		either directly, with Open vSwitch, or any other way. Note that
		TC Flower offload requires specific FW to work.

		config NFP_APP_ABM_NIC
		bool "NFP4000/NFP6000 Advanced buffer management NIC support"
		depends on NFP
		depends on NET_SWITCHDEV
		default y
		help
		Enable driver support for Advanced buffer management NIC on NFP.
		ABM NIC allows advanced configuration of queuing and scheduling
		of packets, including ECN marking. Say Y, if you are planning to
		use one of the NFP4000 and NFP6000 platforms which support this
		functionality.
		Code will be built into the nfp.ko driver.

		config NFP_DEBUG
		bool "Debug support for Netronome(R) NFP4000/NFP6000 NIC drivers"
		depends on NFP

drivers/net/ethernet/netronome/nfp/Makefile

+5 −0

Original line number	Diff line number	Diff line
		@@ -53,4 +53,9 @@ nfp-objs += \
		bpf/jit.o
		endif

		ifeq ($(CONFIG_NFP_APP_ABM_NIC),y)
		nfp-objs += \
		abm/main.o
		endif

		nfp-$(CONFIG_NFP_DEBUG) += nfp_net_debugfs.o

drivers/net/ethernet/netronome/nfp/abm/main.c

0 → 100644

+85 −0

Original line number	Diff line number	Diff line
		// 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 "../nfpcore/nfp_cpp.h"
		#include "../nfpcore/nfp_nsp.h"
		#include "../nfp_app.h"
		#include "../nfp_main.h"
		#include "main.h"

		static int nfp_abm_init(struct nfp_app *app)
		{
		struct nfp_pf *pf = app->pf;
		struct nfp_abm *abm;

		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;

		return 0;
		}

		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_app_nic_vnic_alloc,
		};

drivers/net/ethernet/netronome/nfp/abm/main.h

0 → 100644

+47 −0

Original line number	Diff line number	Diff line
		/* 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.
		*/

		#ifndef __NFP_ABM_H__
		#define __NFP_ABM_H__ 1

		struct nfp_app;

		/**
		* struct nfp_abm - ABM NIC app structure
		* @app: back pointer to nfp_app
		*/
		struct nfp_abm {
		struct nfp_app *app;
		};
		#endif

drivers/net/ethernet/netronome/nfp/nfp_app.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -54,6 +54,9 @@ static const struct nfp_app_type *apps[] = {
		#ifdef CONFIG_NFP_APP_FLOWER
		[NFP_APP_FLOWER_NIC] = &app_flower,
		#endif
		#ifdef CONFIG_NFP_APP_ABM_NIC
		[NFP_APP_ACTIVE_BUFFER_MGMT_NIC] = &app_abm,
		#endif
		};

		struct nfp_app nfp_app_from_netdev(struct net_device netdev)