a316b315d8
Protect pktlog funcitonality under given mutex to avoid possible race condition between pktlog_release/pktlog_open and pktlogmod_exit. Also call pktlogmod_exit before calling wdi_event_detach to avoid accessing freed memory in pktlog release. Change-Id: I5ca4b304d0f4dc1af289daa167958d5b773d9a6e CRs-Fixed: 2578623
211 lines
6.2 KiB
C
211 lines
6.2 KiB
C
/*
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* Copyright (c) 2012-2019 The Linux Foundation. All rights reserved.
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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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#ifndef _PKTLOG_AC_H_
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#define _PKTLOG_AC_H_
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#include "hif.h"
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#ifndef REMOVE_PKT_LOG
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#include "ol_if_athvar.h"
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#include "osdep.h"
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#include <wmi_unified.h>
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#include <wmi_unified_api.h>
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#include <wdi_event_api.h>
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#include <ol_defines.h>
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#include <pktlog_ac_api.h>
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#include <pktlog_ac_fmt.h>
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#define NO_REG_FUNCS 4
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/* Locking interface for pktlog */
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#define PKTLOG_LOCK_INIT(_pl_info) qdf_spinlock_create(&(_pl_info)->log_lock)
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#define PKTLOG_LOCK_DESTROY(_pl_info) \
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qdf_spinlock_destroy(&(_pl_info)->log_lock)
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#define PKTLOG_LOCK(_pl_info) qdf_spin_lock_bh(&(_pl_info)->log_lock)
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#define PKTLOG_UNLOCK(_pl_info) qdf_spin_unlock_bh(&(_pl_info)->log_lock)
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#define PKTLOG_MODE_SYSTEM 1
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#define PKTLOG_MODE_ADAPTER 2
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/*
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* The proc entry starts with magic number and version field which will be
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* used by post processing scripts. These fields are not needed by applications
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* that do not use these scripts. This is skipped using the offset value.
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*/
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#define PKTLOG_READ_OFFSET 8
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/* forward declaration for cdp_pdev */
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struct cdp_pdev;
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/* Opaque softc */
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struct ol_ath_generic_softc_t;
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typedef struct ol_ath_generic_softc_t *ol_ath_generic_softc_handle;
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extern void pktlog_disable_adapter_logging(struct hif_opaque_softc *scn);
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extern int pktlog_alloc_buf(struct hif_opaque_softc *scn);
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extern void pktlog_release_buf(struct hif_opaque_softc *scn);
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ssize_t pktlog_read_proc_entry(char *buf, size_t nbytes, loff_t *ppos,
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struct ath_pktlog_info *pl_info, bool *read_complete);
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A_STATUS wdi_pktlog_unsubscribe(struct cdp_pdev *txrx_pdev, uint32_t log_state);
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struct ol_pl_arch_dep_funcs {
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void (*pktlog_init)(struct hif_opaque_softc *scn);
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int (*pktlog_enable)(struct hif_opaque_softc *scn, int32_t log_state,
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bool ini, uint8_t user,
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uint32_t is_iwpriv_command);
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int (*pktlog_setsize)(struct hif_opaque_softc *scn, int32_t log_state);
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int (*pktlog_disable)(struct hif_opaque_softc *scn);
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};
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struct ol_pl_os_dep_funcs {
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int (*pktlog_attach)(struct hif_opaque_softc *scn);
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void (*pktlog_detach)(struct hif_opaque_softc *scn);
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};
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struct ath_pktlog_wmi_params {
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WMI_PKTLOG_EVENT pktlog_event;
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WMI_CMD_ID cmd_id;
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bool ini_triggered;
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uint8_t user_triggered;
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};
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extern struct ol_pl_arch_dep_funcs ol_pl_funcs;
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extern struct ol_pl_os_dep_funcs *g_ol_pl_os_dep_funcs;
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/* Pktlog handler to save the state of the pktlogs */
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struct pktlog_dev_t {
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struct ol_pl_arch_dep_funcs *pl_funcs;
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struct ath_pktlog_info *pl_info;
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ol_ath_generic_softc_handle scn;
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char *name;
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bool tgt_pktlog_alloced;
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bool is_pktlog_cb_subscribed;
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bool mt_pktlog_enabled;
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uint32_t htc_err_cnt;
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uint8_t htc_endpoint;
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void *htc_pdev;
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bool vendor_cmd_send;
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uint8_t callback_type;
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uint32_t invalid_packets;
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};
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#define PKTLOG_SYSCTL_SIZE 14
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#define PKTLOG_MAX_SEND_QUEUE_DEPTH 64
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/*
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* Linux specific pktlog state information
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*/
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struct ath_pktlog_info_lnx {
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struct ath_pktlog_info info;
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struct ctl_table sysctls[PKTLOG_SYSCTL_SIZE];
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struct proc_dir_entry *proc_entry;
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struct ctl_table_header *sysctl_header;
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};
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#define PL_INFO_LNX(_pl_info) ((struct ath_pktlog_info_lnx *)(_pl_info))
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extern struct ol_pktlog_dev_t ol_pl_dev;
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/*
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* WDI related data and functions
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* Callback function to the WDI events
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*/
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void pktlog_callback(void *pdev, enum WDI_EVENT event, void *log_data,
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u_int16_t peer_id, uint32_t status);
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void pktlog_init(struct hif_opaque_softc *scn);
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int pktlog_enable(struct hif_opaque_softc *scn, int32_t log_state,
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bool, uint8_t, uint32_t);
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int __pktlog_enable(struct hif_opaque_softc *scn, int32_t log_state,
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bool ini_triggered, uint8_t user_triggered,
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uint32_t is_iwpriv_command);
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int pktlog_setsize(struct hif_opaque_softc *scn, int32_t log_state);
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int pktlog_clearbuff(struct hif_opaque_softc *scn, bool clear_buff);
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int pktlog_disable(struct hif_opaque_softc *scn);
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int pktlogmod_init(void *context);
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void pktlogmod_exit(void *context);
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int pktlog_htc_attach(void);
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void pktlog_process_fw_msg(uint32_t *msg_word, uint32_t msg_len);
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void lit_pktlog_callback(void *context, enum WDI_EVENT event, void *log_data,
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u_int16_t peer_id, uint32_t status);
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#define ol_pktlog_attach(_scn) \
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do { \
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if (g_ol_pl_os_dep_funcs) { \
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g_ol_pl_os_dep_funcs->pktlog_attach(_scn); \
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} \
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} while (0)
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#define ol_pktlog_detach(_scn) \
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do { \
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if (g_ol_pl_os_dep_funcs) { \
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g_ol_pl_os_dep_funcs->pktlog_detach(_scn); \
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} \
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} while (0)
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#else /* REMOVE_PKT_LOG */
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#define ol_pktlog_attach(_scn) ({ (void)_scn; })
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#define ol_pktlog_detach(_scn) ({ (void)_scn; })
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static inline void pktlog_init(struct hif_opaque_softc *scn)
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{
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return;
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}
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static inline int pktlog_enable(struct hif_opaque_softc *scn, int32_t log_state,
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bool ini, uint8_t user,
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uint32_t is_iwpriv_command)
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{
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return 0;
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}
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static inline
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int __pktlog_enable(struct hif_opaque_softc *scn, int32_t log_state,
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bool ini_triggered, uint8_t user_triggered,
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uint32_t is_iwpriv_command)
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{
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return 0;
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}
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static inline int pktlog_setsize(struct hif_opaque_softc *scn,
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int32_t log_state)
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{
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return 0;
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}
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static inline int pktlog_clearbuff(struct hif_opaque_softc *scn,
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bool clear_buff)
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{
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return 0;
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}
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static inline int pktlog_disable(struct hif_opaque_softc *scn)
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{
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return 0;
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}
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static inline int pktlog_htc_attach(void)
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{
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return 0;
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}
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static inline void pktlog_process_fw_msg(uint32_t *msg_word, uint32_t msg_len)
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{ }
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#endif /* REMOVE_PKT_LOG */
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#endif /* _PKTLOG_AC_H_ */
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