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Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/abm/main.h')
-rw-r--r--drivers/net/ethernet/netronome/nfp/abm/main.h142
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
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+++ 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