diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/abm/main.h')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/abm/main.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/abm/main.h b/drivers/net/ethernet/netronome/nfp/abm/main.h new file mode 100644 index 000000000000..934a70835473 --- /dev/null +++ b/drivers/net/ethernet/netronome/nfp/abm/main.h @@ -0,0 +1,142 @@ +/* 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 + +#include <net/devlink.h> + +struct nfp_app; +struct nfp_net; + +#define NFP_ABM_PORTID_TYPE GENMASK(23, 16) +#define NFP_ABM_PORTID_ID GENMASK(7, 0) + +/** + * struct nfp_abm - ABM NIC app structure + * @app: back pointer to nfp_app + * @pf_id: ID of our PF link + * @eswitch_mode: devlink eswitch mode, advanced functions only visible + * in switchdev mode + * @q_lvls: queue level control area + * @qm_stats: queue statistics symbol + */ +struct nfp_abm { + struct nfp_app *app; + unsigned int pf_id; + enum devlink_eswitch_mode eswitch_mode; + const struct nfp_rtsym *q_lvls; + const struct nfp_rtsym *qm_stats; +}; + +/** + * struct nfp_alink_stats - ABM NIC statistics + * @tx_pkts: number of TXed packets + * @tx_bytes: number of TXed bytes + * @backlog_pkts: momentary backlog length (packets) + * @backlog_bytes: momentary backlog length (bytes) + * @overlimits: number of ECN marked TXed packets (accumulative) + * @drops: number of tail-dropped packets (accumulative) + */ +struct nfp_alink_stats { + u64 tx_pkts; + u64 tx_bytes; + u64 backlog_pkts; + u64 backlog_bytes; + u64 overlimits; + u64 drops; +}; + +/** + * struct nfp_alink_xstats - extended ABM NIC statistics + * @ecn_marked: number of ECN marked TXed packets + * @pdrop: number of hard drops due to queue limit + */ +struct nfp_alink_xstats { + u64 ecn_marked; + u64 pdrop; +}; + +/** + * struct nfp_red_qdisc - representation of single RED Qdisc + * @handle: handle of currently offloaded RED Qdisc + * @stats: statistics from last refresh + * @xstats: base of extended statistics + */ +struct nfp_red_qdisc { + u32 handle; + struct nfp_alink_stats stats; + struct nfp_alink_xstats xstats; +}; + +/** + * struct nfp_abm_link - port tuple of a ABM NIC + * @abm: back pointer to nfp_abm + * @vnic: data vNIC + * @id: id of the data vNIC + * @queue_base: id of base to host queue within PCIe (not QC idx) + * @total_queues: number of PF queues + * @parent: handle of expected parent, i.e. handle of MQ, or TC_H_ROOT + * @num_qdiscs: number of currently used qdiscs + * @qdiscs: array of qdiscs + */ +struct nfp_abm_link { + struct nfp_abm *abm; + struct nfp_net *vnic; + unsigned int id; + unsigned int queue_base; + unsigned int total_queues; + u32 parent; + unsigned int num_qdiscs; + struct nfp_red_qdisc *qdiscs; +}; + +void nfp_abm_ctrl_read_params(struct nfp_abm_link *alink); +int nfp_abm_ctrl_find_addrs(struct nfp_abm *abm); +int nfp_abm_ctrl_set_all_q_lvls(struct nfp_abm_link *alink, u32 val); +int nfp_abm_ctrl_set_q_lvl(struct nfp_abm_link *alink, unsigned int i, + u32 val); +int nfp_abm_ctrl_read_stats(struct nfp_abm_link *alink, + struct nfp_alink_stats *stats); +int nfp_abm_ctrl_read_q_stats(struct nfp_abm_link *alink, unsigned int i, + struct nfp_alink_stats *stats); +int nfp_abm_ctrl_read_xstats(struct nfp_abm_link *alink, + struct nfp_alink_xstats *xstats); +int nfp_abm_ctrl_read_q_xstats(struct nfp_abm_link *alink, unsigned int i, + struct nfp_alink_xstats *xstats); +u64 nfp_abm_ctrl_stat_non_sto(struct nfp_abm_link *alink, unsigned int i); +u64 nfp_abm_ctrl_stat_sto(struct nfp_abm_link *alink, unsigned int i); +int nfp_abm_ctrl_qm_enable(struct nfp_abm *abm); +int nfp_abm_ctrl_qm_disable(struct nfp_abm *abm); +#endif |