1 /* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */
3 * Copyright (C) 2018 Netronome Systems, Inc.
5 * This software is dual licensed under the GNU General License Version 2,
6 * June 1991 as shown in the file COPYING in the top-level directory of this
7 * source tree or the BSD 2-Clause License provided below. You have the
8 * option to license this software under the complete terms of either license.
10 * The BSD 2-Clause License:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * 1. Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
20 * 2. Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 #define __NFP_ABM_H__ 1
38 #include <net/devlink.h>
43 #define NFP_ABM_PORTID_TYPE GENMASK(23, 16)
44 #define NFP_ABM_PORTID_ID GENMASK(7, 0)
47 * struct nfp_abm - ABM NIC app structure
48 * @app: back pointer to nfp_app
49 * @pf_id: ID of our PF link
50 * @eswitch_mode: devlink eswitch mode, advanced functions only visible
52 * @q_lvls: queue level control area
53 * @qm_stats: queue statistics symbol
58 enum devlink_eswitch_mode eswitch_mode;
59 const struct nfp_rtsym *q_lvls;
60 const struct nfp_rtsym *qm_stats;
64 * struct nfp_alink_stats - ABM NIC statistics
65 * @tx_pkts: number of TXed packets
66 * @tx_bytes: number of TXed bytes
67 * @backlog_pkts: momentary backlog length (packets)
68 * @backlog_bytes: momentary backlog length (bytes)
69 * @overlimits: number of ECN marked TXed packets (accumulative)
70 * @drops: number of tail-dropped packets (accumulative)
72 struct nfp_alink_stats {
82 * struct nfp_alink_xstats - extended ABM NIC statistics
83 * @ecn_marked: number of ECN marked TXed packets
84 * @pdrop: number of hard drops due to queue limit
86 struct nfp_alink_xstats {
92 * struct nfp_red_qdisc - representation of single RED Qdisc
93 * @handle: handle of currently offloaded RED Qdisc
94 * @stats: statistics from last refresh
95 * @xstats: base of extended statistics
97 struct nfp_red_qdisc {
99 struct nfp_alink_stats stats;
100 struct nfp_alink_xstats xstats;
104 * struct nfp_abm_link - port tuple of a ABM NIC
105 * @abm: back pointer to nfp_abm
107 * @id: id of the data vNIC
108 * @queue_base: id of base to host queue within PCIe (not QC idx)
109 * @total_queues: number of PF queues
110 * @parent: handle of expected parent, i.e. handle of MQ, or TC_H_ROOT
111 * @num_qdiscs: number of currently used qdiscs
112 * @qdiscs: array of qdiscs
114 struct nfp_abm_link {
116 struct nfp_net *vnic;
118 unsigned int queue_base;
119 unsigned int total_queues;
121 unsigned int num_qdiscs;
122 struct nfp_red_qdisc *qdiscs;
125 void nfp_abm_ctrl_read_params(struct nfp_abm_link *alink);
126 int nfp_abm_ctrl_find_addrs(struct nfp_abm *abm);
127 int nfp_abm_ctrl_set_all_q_lvls(struct nfp_abm_link *alink, u32 val);
128 int nfp_abm_ctrl_set_q_lvl(struct nfp_abm_link *alink, unsigned int i,
130 int nfp_abm_ctrl_read_stats(struct nfp_abm_link *alink,
131 struct nfp_alink_stats *stats);
132 int nfp_abm_ctrl_read_q_stats(struct nfp_abm_link *alink, unsigned int i,
133 struct nfp_alink_stats *stats);
134 int nfp_abm_ctrl_read_xstats(struct nfp_abm_link *alink,
135 struct nfp_alink_xstats *xstats);
136 int nfp_abm_ctrl_read_q_xstats(struct nfp_abm_link *alink, unsigned int i,
137 struct nfp_alink_xstats *xstats);
138 u64 nfp_abm_ctrl_stat_non_sto(struct nfp_abm_link *alink, unsigned int i);
139 u64 nfp_abm_ctrl_stat_sto(struct nfp_abm_link *alink, unsigned int i);
140 int nfp_abm_ctrl_qm_enable(struct nfp_abm *abm);
141 int nfp_abm_ctrl_qm_disable(struct nfp_abm *abm);