| /* |
| * Copyright (c) 2015-2016 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| #ifndef __HIF_NAPI_H__ |
| #define __HIF_NAPI_H__ |
| |
| /** |
| * DOC: hif_napi.h |
| * |
| * Interface to HIF implemented functions of NAPI. |
| * These are used by hdd_napi. |
| */ |
| |
| |
| /* CLD headers */ |
| #include <hif.h> /* struct hif_opaque_softc; */ |
| |
| /** |
| * common stuff |
| * The declarations until #ifdef FEATURE_NAPI below |
| * are valid whether or not FEATURE_NAPI has been |
| * defined. |
| */ |
| |
| /* the following triggers napi_enable/disable as required */ |
| enum qca_napi_event { |
| NAPI_EVT_INVALID, |
| NAPI_EVT_INI_FILE, |
| NAPI_EVT_CMD_STATE /* ioctl enable/disable commands */ |
| }; |
| |
| /** |
| * Macros to map ids -returned by ...create()- to pipes and vice versa |
| */ |
| #define NAPI_ID2PIPE(i) ((i)-1) |
| #define NAPI_PIPE2ID(p) ((p)+1) |
| |
| |
| #ifdef FEATURE_NAPI |
| |
| /** |
| * NAPI HIF API |
| * |
| * the declarations below only apply to the case |
| * where FEATURE_NAPI is defined |
| */ |
| |
| int hif_napi_create(struct hif_opaque_softc *hif, |
| int (*poll)(struct napi_struct *, int), |
| int budget, |
| int scale); |
| int hif_napi_destroy(struct hif_opaque_softc *hif, |
| uint8_t id, |
| int force); |
| |
| struct qca_napi_data *hif_napi_get_all(struct hif_opaque_softc *hif); |
| |
| int hif_napi_event(struct hif_opaque_softc *hif, |
| enum qca_napi_event event, |
| void *data); |
| |
| /* called from the ISR within hif, so, ce is known */ |
| int hif_napi_enabled(struct hif_opaque_softc *hif, int ce); |
| |
| /* called from hdd (napi_poll), using napi id as a selector */ |
| void hif_napi_enable_irq(struct hif_opaque_softc *hif, int id); |
| |
| /* called by ce_tasklet.c::ce_dispatch_interrupt*/ |
| int hif_napi_schedule(struct hif_opaque_softc *scn, int ce_id); |
| |
| /* called by hdd_napi, which is called by kernel */ |
| int hif_napi_poll(struct hif_opaque_softc *hif_ctx, |
| struct napi_struct *napi, int budget); |
| |
| #ifdef FEATURE_NAPI_DEBUG |
| #define NAPI_DEBUG(fmt, ...) \ |
| qdf_print("wlan: NAPI: %s:%d "fmt, __func__, __LINE__, ##__VA_ARGS__); |
| #else |
| #define NAPI_DEBUG(fmt, ...) /* NO-OP */ |
| #endif /* FEATURE NAPI_DEBUG */ |
| |
| #else /* ! defined(FEATURE_NAPI) */ |
| |
| /** |
| * Stub API |
| * |
| * The declarations in this section are valid only |
| * when FEATURE_NAPI has *not* been defined. |
| */ |
| |
| #define NAPI_DEBUG(fmt, ...) /* NO-OP */ |
| |
| static inline int hif_napi_create(struct hif_opaque_softc *hif, |
| uint8_t pipe_id, |
| int (*poll)(struct napi_struct *, int), |
| int budget, |
| int scale) |
| { return -EPERM; } |
| |
| static inline int hif_napi_destroy(struct hif_opaque_softc *hif, |
| uint8_t id, |
| int force) |
| { return -EPERM; } |
| |
| static inline struct qca_napi_data *hif_napi_get_all( |
| struct hif_opaque_softc *hif) |
| { return NULL; } |
| |
| static inline int hif_napi_event(struct hif_opaque_softc *hif, |
| enum qca_napi_event event, |
| void *data) |
| { return -EPERM; } |
| |
| /* called from the ISR within hif, so, ce is known */ |
| static inline int hif_napi_enabled(struct hif_opaque_softc *hif, int ce) |
| { return 0; } |
| |
| /* called from hdd (napi_poll), using napi id as a selector */ |
| static inline void hif_napi_enable_irq(struct hif_opaque_softc *hif, int id) |
| { return; } |
| |
| static inline int hif_napi_schedule(struct hif_opaque_softc *hif, int ce_id) |
| { return 0; } |
| |
| static inline int hif_napi_poll(struct napi_struct *napi, int budget) |
| { return -EPERM; } |
| |
| #endif /* FEATURE_NAPI */ |
| |
| #endif /* __HIF_NAPI_H__ */ |