143 lines
4.6 KiB
C
143 lines
4.6 KiB
C
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/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */
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/*
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* Copyright (C) 2018 Netronome Systems, Inc.
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*
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* This software is dual licensed under the GNU General License Version 2,
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* June 1991 as shown in the file COPYING in the top-level directory of this
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* source tree or the BSD 2-Clause License provided below. You have the
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* option to license this software under the complete terms of either license.
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*
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* The BSD 2-Clause License:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __NFP_ABM_H__
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#define __NFP_ABM_H__ 1
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#include <net/devlink.h>
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struct nfp_app;
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struct nfp_net;
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#define NFP_ABM_PORTID_TYPE GENMASK(23, 16)
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#define NFP_ABM_PORTID_ID GENMASK(7, 0)
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/**
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* struct nfp_abm - ABM NIC app structure
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* @app: back pointer to nfp_app
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* @pf_id: ID of our PF link
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* @eswitch_mode: devlink eswitch mode, advanced functions only visible
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* in switchdev mode
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* @q_lvls: queue level control area
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* @qm_stats: queue statistics symbol
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*/
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struct nfp_abm {
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struct nfp_app *app;
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unsigned int pf_id;
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enum devlink_eswitch_mode eswitch_mode;
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const struct nfp_rtsym *q_lvls;
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const struct nfp_rtsym *qm_stats;
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};
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/**
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* struct nfp_alink_stats - ABM NIC statistics
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* @tx_pkts: number of TXed packets
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* @tx_bytes: number of TXed bytes
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* @backlog_pkts: momentary backlog length (packets)
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* @backlog_bytes: momentary backlog length (bytes)
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* @overlimits: number of ECN marked TXed packets (accumulative)
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* @drops: number of tail-dropped packets (accumulative)
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*/
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struct nfp_alink_stats {
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u64 tx_pkts;
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u64 tx_bytes;
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u64 backlog_pkts;
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u64 backlog_bytes;
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u64 overlimits;
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u64 drops;
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};
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/**
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* struct nfp_alink_xstats - extended ABM NIC statistics
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* @ecn_marked: number of ECN marked TXed packets
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* @pdrop: number of hard drops due to queue limit
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*/
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struct nfp_alink_xstats {
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u64 ecn_marked;
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u64 pdrop;
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};
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/**
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* struct nfp_red_qdisc - representation of single RED Qdisc
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* @handle: handle of currently offloaded RED Qdisc
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* @stats: statistics from last refresh
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* @xstats: base of extended statistics
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*/
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struct nfp_red_qdisc {
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u32 handle;
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struct nfp_alink_stats stats;
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struct nfp_alink_xstats xstats;
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};
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/**
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* struct nfp_abm_link - port tuple of a ABM NIC
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* @abm: back pointer to nfp_abm
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* @vnic: data vNIC
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* @id: id of the data vNIC
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* @queue_base: id of base to host queue within PCIe (not QC idx)
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* @total_queues: number of PF queues
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* @parent: handle of expected parent, i.e. handle of MQ, or TC_H_ROOT
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* @num_qdiscs: number of currently used qdiscs
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* @qdiscs: array of qdiscs
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*/
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struct nfp_abm_link {
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struct nfp_abm *abm;
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struct nfp_net *vnic;
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unsigned int id;
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unsigned int queue_base;
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unsigned int total_queues;
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u32 parent;
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unsigned int num_qdiscs;
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struct nfp_red_qdisc *qdiscs;
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};
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void nfp_abm_ctrl_read_params(struct nfp_abm_link *alink);
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int nfp_abm_ctrl_find_addrs(struct nfp_abm *abm);
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int nfp_abm_ctrl_set_all_q_lvls(struct nfp_abm_link *alink, u32 val);
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int nfp_abm_ctrl_set_q_lvl(struct nfp_abm_link *alink, unsigned int i,
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u32 val);
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int nfp_abm_ctrl_read_stats(struct nfp_abm_link *alink,
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struct nfp_alink_stats *stats);
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int nfp_abm_ctrl_read_q_stats(struct nfp_abm_link *alink, unsigned int i,
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struct nfp_alink_stats *stats);
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int nfp_abm_ctrl_read_xstats(struct nfp_abm_link *alink,
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struct nfp_alink_xstats *xstats);
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int nfp_abm_ctrl_read_q_xstats(struct nfp_abm_link *alink, unsigned int i,
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struct nfp_alink_xstats *xstats);
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u64 nfp_abm_ctrl_stat_non_sto(struct nfp_abm_link *alink, unsigned int i);
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u64 nfp_abm_ctrl_stat_sto(struct nfp_abm_link *alink, unsigned int i);
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int nfp_abm_ctrl_qm_enable(struct nfp_abm *abm);
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int nfp_abm_ctrl_qm_disable(struct nfp_abm *abm);
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#endif
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