From a5969cabbb4660eab42b6ef0412cbbd1200cf14d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 12 Oct 2024 07:10:09 +0000
Subject: [PATCH] 修改led为gpio
---
kernel/drivers/net/ethernet/netronome/nfp/abm/main.h | 243 +++++++++++++++++++++++++++++++++++++-----------
1 files changed, 187 insertions(+), 56 deletions(-)
diff --git a/kernel/drivers/net/ethernet/netronome/nfp/abm/main.h b/kernel/drivers/net/ethernet/netronome/nfp/abm/main.h
index 934a708..48746c9 100644
--- a/kernel/drivers/net/ethernet/netronome/nfp/abm/main.h
+++ b/kernel/drivers/net/ethernet/netronome/nfp/abm/main.h
@@ -1,41 +1,22 @@
-/* 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.
- */
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Copyright (C) 2018 Netronome Systems, Inc. */
#ifndef __NFP_ABM_H__
#define __NFP_ABM_H__ 1
+#include <linux/bits.h>
+#include <linux/list.h>
+#include <linux/radix-tree.h>
#include <net/devlink.h>
+#include <net/pkt_cls.h>
+#include <net/pkt_sched.h>
+
+/* Dump of 64 PRIOs and 256 REDs seems to take 850us on Xeon v4 @ 2.20GHz;
+ * 2.5ms / 400Hz seems more than sufficient for stats resolution.
+ */
+#define NFP_ABM_STATS_REFRESH_IVAL (2500 * 1000) /* ns */
+
+#define NFP_ABM_LVL_INFINITY S32_MAX
struct nfp_app;
struct nfp_net;
@@ -43,21 +24,64 @@
#define NFP_ABM_PORTID_TYPE GENMASK(23, 16)
#define NFP_ABM_PORTID_ID GENMASK(7, 0)
+/* The possible actions if thresholds are exceeded */
+enum nfp_abm_q_action {
+ /* mark if ECN capable, otherwise drop */
+ NFP_ABM_ACT_MARK_DROP = 0,
+ /* mark if ECN capable, otherwise goto QM */
+ NFP_ABM_ACT_MARK_QUEUE = 1,
+ NFP_ABM_ACT_DROP = 2,
+ NFP_ABM_ACT_QUEUE = 3,
+ NFP_ABM_ACT_NOQUEUE = 4,
+};
+
/**
* struct nfp_abm - ABM NIC app structure
* @app: back pointer to nfp_app
* @pf_id: ID of our PF link
+ *
+ * @red_support: is RED offload supported
+ * @num_prios: number of supported DSCP priorities
+ * @num_bands: number of supported DSCP priority bands
+ * @action_mask: bitmask of supported actions
+ *
+ * @thresholds: current threshold configuration
+ * @threshold_undef: bitmap of thresholds which have not been set
+ * @actions: current FW action configuration
+ * @num_thresholds: number of @thresholds and bits in @threshold_undef
+ *
+ * @prio_map_len: computed length of FW priority map (in bytes)
+ * @dscp_mask: mask FW will apply on DSCP field
+ *
* @eswitch_mode: devlink eswitch mode, advanced functions only visible
* in switchdev mode
+ *
* @q_lvls: queue level control area
* @qm_stats: queue statistics symbol
+ * @q_stats: basic queue statistics (only in per-band case)
*/
struct nfp_abm {
struct nfp_app *app;
unsigned int pf_id;
+
+ unsigned int red_support;
+ unsigned int num_prios;
+ unsigned int num_bands;
+ unsigned int action_mask;
+
+ u32 *thresholds;
+ unsigned long *threshold_undef;
+ u8 *actions;
+ size_t num_thresholds;
+
+ unsigned int prio_map_len;
+ u8 dscp_mask;
+
enum devlink_eswitch_mode eswitch_mode;
+
const struct nfp_rtsym *q_lvls;
const struct nfp_rtsym *qm_stats;
+ const struct nfp_rtsym *q_stats;
};
/**
@@ -88,16 +112,76 @@
u64 pdrop;
};
+enum nfp_qdisc_type {
+ NFP_QDISC_NONE = 0,
+ NFP_QDISC_MQ,
+ NFP_QDISC_RED,
+ NFP_QDISC_GRED,
+};
+
+#define NFP_QDISC_UNTRACKED ((struct nfp_qdisc *)1UL)
+
/**
- * 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_qdisc - tracked TC Qdisc
+ * @netdev: netdev on which Qdisc was created
+ * @type: Qdisc type
+ * @handle: handle of this Qdisc
+ * @parent_handle: handle of the parent (unreliable if Qdisc was grafted)
+ * @use_cnt: number of attachment points in the hierarchy
+ * @num_children: current size of the @children array
+ * @children: pointers to children
+ *
+ * @params_ok: parameters of this Qdisc are OK for offload
+ * @offload_mark: offload refresh state - selected for offload
+ * @offloaded: Qdisc is currently offloaded to the HW
+ *
+ * @mq: MQ Qdisc specific parameters and state
+ * @mq.stats: current stats of the MQ Qdisc
+ * @mq.prev_stats: previously reported @mq.stats
+ *
+ * @red: RED Qdisc specific parameters and state
+ * @red.num_bands: Number of valid entries in the @red.band table
+ * @red.band: Per-band array of RED instances
+ * @red.band.ecn: ECN marking is enabled (rather than drop)
+ * @red.band.threshold: ECN marking threshold
+ * @red.band.stats: current stats of the RED Qdisc
+ * @red.band.prev_stats: previously reported @red.stats
+ * @red.band.xstats: extended stats for RED - current
+ * @red.band.prev_xstats: extended stats for RED - previously reported
*/
-struct nfp_red_qdisc {
+struct nfp_qdisc {
+ struct net_device *netdev;
+ enum nfp_qdisc_type type;
u32 handle;
- struct nfp_alink_stats stats;
- struct nfp_alink_xstats xstats;
+ u32 parent_handle;
+ unsigned int use_cnt;
+ unsigned int num_children;
+ struct nfp_qdisc **children;
+
+ bool params_ok;
+ bool offload_mark;
+ bool offloaded;
+
+ union {
+ /* NFP_QDISC_MQ */
+ struct {
+ struct nfp_alink_stats stats;
+ struct nfp_alink_stats prev_stats;
+ } mq;
+ /* TC_SETUP_QDISC_RED, TC_SETUP_QDISC_GRED */
+ struct {
+ unsigned int num_bands;
+
+ struct {
+ bool ecn;
+ u32 threshold;
+ struct nfp_alink_stats stats;
+ struct nfp_alink_stats prev_stats;
+ struct nfp_alink_xstats xstats;
+ struct nfp_alink_xstats prev_xstats;
+ } band[MAX_DPs];
+ } red;
+ };
};
/**
@@ -107,9 +191,17 @@
* @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
+ *
+ * @last_stats_update: ktime of last stats update
+ *
+ * @prio_map: current map of priorities
+ * @has_prio: @prio_map is valid
+ *
+ * @def_band: default band to use
+ * @dscp_map: list of DSCP to band mappings
+ *
+ * @root_qdisc: pointer to the current root of the Qdisc hierarchy
+ * @qdiscs: all qdiscs recorded by major part of the handle
*/
struct nfp_abm_link {
struct nfp_abm *abm;
@@ -117,26 +209,65 @@
unsigned int id;
unsigned int queue_base;
unsigned int total_queues;
- u32 parent;
- unsigned int num_qdiscs;
- struct nfp_red_qdisc *qdiscs;
+
+ u64 last_stats_update;
+
+ u32 *prio_map;
+ bool has_prio;
+
+ u8 def_band;
+ struct list_head dscp_map;
+
+ struct nfp_qdisc *root_qdisc;
+ struct radix_tree_root qdiscs;
};
-void nfp_abm_ctrl_read_params(struct nfp_abm_link *alink);
+static inline bool nfp_abm_has_prio(struct nfp_abm *abm)
+{
+ return abm->num_bands > 1;
+}
+
+static inline bool nfp_abm_has_drop(struct nfp_abm *abm)
+{
+ return abm->action_mask & BIT(NFP_ABM_ACT_DROP);
+}
+
+static inline bool nfp_abm_has_mark(struct nfp_abm *abm)
+{
+ return abm->action_mask & BIT(NFP_ABM_ACT_MARK_DROP);
+}
+
+void nfp_abm_qdisc_offload_update(struct nfp_abm_link *alink);
+int nfp_abm_setup_root(struct net_device *netdev, struct nfp_abm_link *alink,
+ struct tc_root_qopt_offload *opt);
+int nfp_abm_setup_tc_red(struct net_device *netdev, struct nfp_abm_link *alink,
+ struct tc_red_qopt_offload *opt);
+int nfp_abm_setup_tc_mq(struct net_device *netdev, struct nfp_abm_link *alink,
+ struct tc_mq_qopt_offload *opt);
+int nfp_abm_setup_tc_gred(struct net_device *netdev, struct nfp_abm_link *alink,
+ struct tc_gred_qopt_offload *opt);
+int nfp_abm_setup_cls_block(struct net_device *netdev, struct nfp_repr *repr,
+ struct flow_block_offload *opt);
+
+int 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,
+int __nfp_abm_ctrl_set_q_lvl(struct nfp_abm *abm, unsigned int id, u32 val);
+int nfp_abm_ctrl_set_q_lvl(struct nfp_abm_link *alink, unsigned int band,
+ unsigned int queue, u32 val);
+int __nfp_abm_ctrl_set_q_act(struct nfp_abm *abm, unsigned int id,
+ enum nfp_abm_q_action act);
+int nfp_abm_ctrl_set_q_act(struct nfp_abm_link *alink, unsigned int band,
+ unsigned int queue, enum nfp_abm_q_action act);
+int nfp_abm_ctrl_read_q_stats(struct nfp_abm_link *alink,
+ unsigned int band, unsigned int queue,
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,
+int nfp_abm_ctrl_read_q_xstats(struct nfp_abm_link *alink,
+ unsigned int band, unsigned int queue,
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);
+void nfp_abm_prio_map_update(struct nfp_abm *abm);
+int nfp_abm_ctrl_prio_map_update(struct nfp_abm_link *alink, u32 *packed);
#endif
--
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