518eb5092e
Currently NAPI stats are retrieved as a part of iwpriv getStats command. The buffer available for this command is limited and NAPI stats get trucncated. Add a new dumpStats parameter (9) to dump NAPI stats. Change-Id: Iaf52a3dcecac2f7b24fde2f8220fbfddc767965b CRs-Fixed: 1076563
257 lines
7.6 KiB
C
257 lines
7.6 KiB
C
/*
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* Copyright (c) 2015-2017 The Linux Foundation. All rights reserved.
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*
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* Previously licensed under the ISC license by Qualcomm Atheros, Inc.
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*
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* This file was originally distributed by Qualcomm Atheros, Inc.
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* under proprietary terms before Copyright ownership was assigned
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* to the Linux Foundation.
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*/
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#ifndef __HIF_NAPI_H__
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#define __HIF_NAPI_H__
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/**
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* DOC: hif_napi.h
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*
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* Interface to HIF implemented functions of NAPI.
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* These are used by hdd_napi.
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*/
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/* CLD headers */
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#include <hif.h> /* struct hif_opaque_softc; */
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/**
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* common stuff
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* The declarations until #ifdef FEATURE_NAPI below
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* are valid whether or not FEATURE_NAPI has been
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* defined.
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*/
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/**
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* NAPI manages the following states:
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* NAPI state: per NAPI instance, ENABLED/DISABLED
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* CPU state: per CPU, DOWN/UP
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* TPUT state: global, LOW/HI
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*
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* "Dynamic" changes to state of various NAPI structures are
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* managed by NAPI events. The events may be produced by
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* various detection points. With each event, some data is
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* sent. The main event handler in hif_napi handles and makes
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* the state changes.
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*
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* event : data : generated
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* ---------------:------------------:------------------
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* EVT_INI_FILE : cfg->napi_enable : after ini file processed
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* EVT_CMD_STATE : cmd arg : by the vendor cmd
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* EVT_INT_STATE : 0 : internal - shut off/disable
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* EVT_CPU_STATE : (cpu << 16)|state: CPU hotplug events
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* EVT_TPUT_STATE : (high/low) : tput trigger
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* EVT_USR_SERIAL : num-serial_calls : WMA/ROAMING-START/IND
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* EVT_USR_NORMAL : N/A : WMA/ROAMING-END
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*/
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enum qca_napi_event {
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NAPI_EVT_INVALID,
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NAPI_EVT_INI_FILE,
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NAPI_EVT_CMD_STATE,
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NAPI_EVT_INT_STATE,
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NAPI_EVT_CPU_STATE,
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NAPI_EVT_TPUT_STATE,
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NAPI_EVT_USR_SERIAL,
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NAPI_EVT_USR_NORMAL
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};
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/**
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* Macros to map ids -returned by ...create()- to pipes and vice versa
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*/
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#define NAPI_ID2PIPE(i) ((i)-1)
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#define NAPI_PIPE2ID(p) ((p)+1)
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int hif_napi_lro_flush_cb_register(struct hif_opaque_softc *hif_hdl,
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void (lro_flush_handler)(void *),
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void *(lro_init_handler)(void));
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void hif_napi_lro_flush_cb_deregister(struct hif_opaque_softc *hif_hdl,
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void (lro_deinit_cb)(void *));
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void *hif_napi_get_lro_info(struct hif_opaque_softc *hif_hdl, int napi_id);
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#ifdef FEATURE_NAPI
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/**
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* NAPI HIF API
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*
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* the declarations below only apply to the case
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* where FEATURE_NAPI is defined
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*/
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int hif_napi_create(struct hif_opaque_softc *hif,
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int (*poll)(struct napi_struct *, int),
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int budget,
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int scale);
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int hif_napi_destroy(struct hif_opaque_softc *hif,
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uint8_t id,
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int force);
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struct qca_napi_data *hif_napi_get_all(struct hif_opaque_softc *hif);
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int hif_napi_event(struct hif_opaque_softc *hif,
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enum qca_napi_event event,
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void *data);
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/* called from the ISR within hif, so, ce is known */
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int hif_napi_enabled(struct hif_opaque_softc *hif, int ce);
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/* called from hdd (napi_poll), using napi id as a selector */
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void hif_napi_enable_irq(struct hif_opaque_softc *hif, int id);
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/* called by ce_tasklet.c::ce_dispatch_interrupt*/
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int hif_napi_schedule(struct hif_opaque_softc *scn, int ce_id);
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/* called by hdd_napi, which is called by kernel */
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int hif_napi_poll(struct hif_opaque_softc *hif_ctx,
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struct napi_struct *napi, int budget);
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#ifdef HELIUMPLUS
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/* called to retrieve NAPI CPU statistics */
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void hif_napi_stats(struct qca_napi_data *napid);
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void hif_napi_update_yield_stats(struct CE_state *ce_state,
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bool time_limit_reached,
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bool rxpkt_thresh_reached);
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#else
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static inline void hif_napi_stats(struct qca_napi_data *napid) { }
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static inline void hif_napi_update_yield_stats(struct CE_state *ce_state,
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bool time_limit_reached,
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bool rxpkt_thresh_reached) { }
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#endif
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#ifdef FEATURE_NAPI_DEBUG
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#define NAPI_DEBUG(fmt, ...) \
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qdf_print("wlan: NAPI: %s:%d "fmt, __func__, __LINE__, ##__VA_ARGS__);
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#else
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#define NAPI_DEBUG(fmt, ...) /* NO-OP */
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#endif /* FEATURE NAPI_DEBUG */
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#define HNC_ANY_CPU (-1)
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#define HNC_ACT_RELOCATE (0)
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#define HNC_ACT_COLLAPSE (1)
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#define HNC_ACT_DISPERSE (-1)
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/**
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* Local interface to HIF implemented functions of NAPI CPU affinity management.
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* Note:
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* 1- The symbols in this file are NOT supposed to be used by any
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* entity other than hif_napi.c
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* 2- The symbols are valid only if HELIUMPLUS is defined. They are otherwise
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* mere wrappers.
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*
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*/
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#ifndef HELIUMPLUS
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/**
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* stub functions
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*/
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/* fw-declare to make compiler happy */
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struct qca_napi_data;
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static inline int hif_napi_cpu_init(struct hif_opaque_softc *hif)
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{ return 0; }
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static inline int hif_napi_cpu_deinit(struct hif_opaque_softc *hif)
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{ return 0; }
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static inline int hif_napi_serialize(struct hif_opaque_softc *hif, int is_on)
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{ return -EPERM; }
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#else /* HELIUMPLUS - NAPI CPU symbols are valid */
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/*
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* prototype signatures
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*/
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int hif_napi_cpu_init(struct hif_opaque_softc *hif);
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int hif_napi_cpu_deinit(struct hif_opaque_softc *hif);
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int hif_napi_cpu_migrate(struct qca_napi_data *napid, int cpu, int action);
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int hif_napi_cpu_blacklist(bool is_on);
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int hif_napi_serialize(struct hif_opaque_softc *hif, int is_on);
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#endif /* HELIUMPLUS */
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#else /* ! defined(FEATURE_NAPI) */
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/**
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* Stub API
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*
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* The declarations in this section are valid only
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* when FEATURE_NAPI has *not* been defined.
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*/
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#define NAPI_DEBUG(fmt, ...) /* NO-OP */
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static inline int hif_napi_create(struct hif_opaque_softc *hif,
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uint8_t pipe_id,
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int (*poll)(struct napi_struct *, int),
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int budget,
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int scale)
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{ return -EPERM; }
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static inline int hif_napi_destroy(struct hif_opaque_softc *hif,
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uint8_t id,
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int force)
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{ return -EPERM; }
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static inline struct qca_napi_data *hif_napi_get_all(
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struct hif_opaque_softc *hif)
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{ return NULL; }
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static inline int hif_napi_event(struct hif_opaque_softc *hif,
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enum qca_napi_event event,
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void *data)
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{ return -EPERM; }
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/* called from the ISR within hif, so, ce is known */
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static inline int hif_napi_enabled(struct hif_opaque_softc *hif, int ce)
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{ return 0; }
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/* called from hdd (napi_poll), using napi id as a selector */
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static inline void hif_napi_enable_irq(struct hif_opaque_softc *hif, int id)
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{ return; }
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static inline int hif_napi_schedule(struct hif_opaque_softc *hif, int ce_id)
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{ return 0; }
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static inline int hif_napi_poll(struct napi_struct *napi, int budget)
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{ return -EPERM; }
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static inline void hif_napi_stats(struct qca_napi_data *napid) { }
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static inline void hif_napi_update_yield_stats(struct CE_state *ce_state,
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bool time_limit_reached,
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bool rxpkt_thresh_reached) { }
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#endif /* FEATURE_NAPI */
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static inline int hif_ext_napi_enabled(struct hif_opaque_softc *hif, int ce)
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{ return 0; }
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static inline int hif_napi_schedule_grp(struct hif_opaque_softc *hif,
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uint32_t grp_id)
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{ return 0; }
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#endif /* __HIF_NAPI_H__ */
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