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3ce87c3e5f07bc83b0b33020a303d218c98e64aa
android_kernel_samsung_sm86…/utils/pktlog/pktlog_ac.c
Amar Singhal 479698e1d7 qcacmn: Add NULL ptr and data initialization checks in pktlog 
Add checks for NULL ptr. Also initialize data properly.

Change-Id: Ib6db409f038421c5a0c9033bea7948f9cd6376dd
CRs-Fixed: 2160752
2018-01-11 13:45:15 -08:00

1086 lines
27 KiB
C
Raw Blame History

/*
* Copyright (c) 2012-2018 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.
*/
/*
*
* 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.
*/
#ifndef REMOVE_PKT_LOG
#include "qdf_mem.h"
#include "athdefs.h"
#include "pktlog_ac_i.h"
#include "cds_api.h"
#include "wma_types.h"
#include "htc.h"
#include <cdp_txrx_cmn_struct.h>
#include <cdp_txrx_ctrl.h>
wdi_event_subscribe PKTLOG_TX_SUBSCRIBER;
wdi_event_subscribe PKTLOG_RX_SUBSCRIBER;
wdi_event_subscribe PKTLOG_RX_REMOTE_SUBSCRIBER;
wdi_event_subscribe PKTLOG_RCFIND_SUBSCRIBER;
wdi_event_subscribe PKTLOG_RCUPDATE_SUBSCRIBER;
wdi_event_subscribe PKTLOG_SW_EVENT_SUBSCRIBER;
wdi_event_subscribe PKTLOG_LITE_T2H_SUBSCRIBER;
wdi_event_subscribe PKTLOG_LITE_RX_SUBSCRIBER;
struct ol_pl_arch_dep_funcs ol_pl_funcs = {
.pktlog_init = pktlog_init,
.pktlog_enable = pktlog_enable,
.pktlog_setsize = pktlog_setsize,
.pktlog_disable = pktlog_disable, /* valid for f/w disable */
};
struct pktlog_dev_t pl_dev = {
.pl_funcs = &ol_pl_funcs,
};
void pktlog_sethandle(struct pktlog_dev_t **pl_handle,
struct hif_opaque_softc *scn)
{
pl_dev.scn = (ol_ath_generic_softc_handle) scn;
*pl_handle = &pl_dev;
}
void pktlog_set_callback_regtype(
enum pktlog_callback_regtype callback_type)
{
struct pktlog_dev_t *pl_dev = get_pktlog_handle();
if (!pl_dev) {
qdf_print("Invalid pl_dev");
return;
}
pl_dev->callback_type = callback_type;
}
#ifdef CONFIG_MCL
struct pktlog_dev_t *get_pktlog_handle(void)
{
struct cdp_pdev *pdev_txrx_handle =
cds_get_context(QDF_MODULE_ID_TXRX);
void *soc = cds_get_context(QDF_MODULE_ID_SOC);
return cdp_get_pldev(soc, pdev_txrx_handle);
}
/*
* Get current txrx context
*/
void *get_txrx_context(void)
{
return cds_get_context(QDF_MODULE_ID_TXRX);
}
#else
/* TODO: Need to use WIN implementation to return pktlog_dev handle */
static inline struct pktlog_dev_t *get_pktlog_handle(void)
{
return NULL;
}
static struct pktlog_dev_t *get_txrx_context(void) { }
#endif
static A_STATUS pktlog_wma_post_msg(WMI_PKTLOG_EVENT event_types,
WMI_CMD_ID cmd_id, bool ini_triggered,
uint8_t user_triggered)
{
struct scheduler_msg msg = { 0 };
QDF_STATUS status;
struct ath_pktlog_wmi_params *param;
param = qdf_mem_malloc(sizeof(struct ath_pktlog_wmi_params));
if (!param)
return A_NO_MEMORY;
param->cmd_id = cmd_id;
param->pktlog_event = event_types;
param->ini_triggered = ini_triggered;
param->user_triggered = user_triggered;
msg.type = WMA_PKTLOG_ENABLE_REQ;
msg.bodyptr = param;
msg.bodyval = 0;
status = scheduler_post_msg(QDF_MODULE_ID_WMA, &msg);
if (status != QDF_STATUS_SUCCESS) {
qdf_mem_free(param);
return A_ERROR;
}
return A_OK;
}
static inline A_STATUS
pktlog_enable_tgt(struct hif_opaque_softc *_scn, uint32_t log_state,
bool ini_triggered, uint8_t user_triggered)
{
uint32_t types = 0;
if (log_state & ATH_PKTLOG_TX)
types |= WMI_PKTLOG_EVENT_TX;
if (log_state & ATH_PKTLOG_RX)
types |= WMI_PKTLOG_EVENT_RX;
if (log_state & ATH_PKTLOG_RCFIND)
types |= WMI_PKTLOG_EVENT_RCF;
if (log_state & ATH_PKTLOG_RCUPDATE)
types |= WMI_PKTLOG_EVENT_RCU;
if (log_state & ATH_PKTLOG_SW_EVENT)
types |= WMI_PKTLOG_EVENT_SW;
return pktlog_wma_post_msg(types, WMI_PDEV_PKTLOG_ENABLE_CMDID,
ini_triggered, user_triggered);
}
static inline A_STATUS
wdi_pktlog_subscribe(struct cdp_pdev *cdp_pdev, int32_t log_state)
{
#ifdef CONFIG_MCL
void *soc = cds_get_context(QDF_MODULE_ID_SOC);
#else
/*TODO: WIN implementation to get soc */
#endif
if (!cdp_pdev) {
qdf_print("Invalid pdev in %s\n", __func__);
return A_ERROR;
}
if (log_state & ATH_PKTLOG_TX) {
if (cdp_wdi_event_sub(soc, cdp_pdev, &PKTLOG_TX_SUBSCRIBER,
WDI_EVENT_TX_STATUS)) {
return A_ERROR;
}
}
if (log_state & ATH_PKTLOG_RX) {
if (cdp_wdi_event_sub(soc, cdp_pdev, &PKTLOG_RX_SUBSCRIBER,
WDI_EVENT_RX_DESC)) {
return A_ERROR;
}
if (cdp_wdi_event_sub(soc, cdp_pdev,
&PKTLOG_RX_REMOTE_SUBSCRIBER,
WDI_EVENT_RX_DESC_REMOTE)) {
return A_ERROR;
}
}
if (log_state & ATH_PKTLOG_RCFIND) {
if (cdp_wdi_event_sub(soc, cdp_pdev,
&PKTLOG_RCFIND_SUBSCRIBER,
WDI_EVENT_RATE_FIND)) {
return A_ERROR;
}
}
if (log_state & ATH_PKTLOG_RCUPDATE) {
if (cdp_wdi_event_sub(soc, cdp_pdev,
&PKTLOG_RCUPDATE_SUBSCRIBER,
WDI_EVENT_RATE_UPDATE)) {
return A_ERROR;
}
}
if (log_state & ATH_PKTLOG_SW_EVENT) {
if (cdp_wdi_event_sub(soc, cdp_pdev,
&PKTLOG_SW_EVENT_SUBSCRIBER,
WDI_EVENT_SW_EVENT)) {
return A_ERROR;
}
}
if (log_state & ATH_PKTLOG_LITE_T2H) {
if (cdp_wdi_event_sub(soc, cdp_pdev,
&PKTLOG_LITE_T2H_SUBSCRIBER,
WDI_EVENT_LITE_T2H)) {
return A_ERROR;
}
}
if (log_state & ATH_PKTLOG_LITE_RX) {
if (cdp_wdi_event_sub(soc, cdp_pdev,
&PKTLOG_LITE_RX_SUBSCRIBER,
WDI_EVENT_LITE_RX)) {
return A_ERROR;
}
}
return A_OK;
}
void pktlog_callback(void *pdev, enum WDI_EVENT event, void *log_data,
u_int16_t peer_id, uint32_t status)
{
switch (event) {
case WDI_EVENT_TX_STATUS:
{
/*
* process TX message
*/
if (process_tx_info(pdev, log_data)) {
qdf_print("Unable to process TX info\n");
return;
}
break;
}
case WDI_EVENT_RX_DESC:
{
/*
* process RX message for local frames
*/
if (process_rx_info(pdev, log_data)) {
qdf_print("Unable to process RX info\n");
return;
}
break;
}
case WDI_EVENT_RX_DESC_REMOTE:
{
/*
* process RX message for remote frames
*/
if (process_rx_info_remote(pdev, log_data)) {
qdf_print("Unable to process RX info\n");
return;
}
break;
}
case WDI_EVENT_RATE_FIND:
{
/*
* process RATE_FIND message
*/
if (process_rate_find(pdev, log_data)) {
qdf_print("Unable to process RC_FIND info\n");
return;
}
break;
}
case WDI_EVENT_RATE_UPDATE:
{
/*
* process RATE_UPDATE message
*/
if (process_rate_update(pdev, log_data)) {
qdf_print("Unable to process RC_UPDATE\n");
return;
}
break;
}
case WDI_EVENT_SW_EVENT:
{
/*
* process SW EVENT message
*/
if (process_sw_event(pdev, log_data)) {
qdf_print("Unable to process SW_EVENT\n");
return;
}
break;
}
default:
break;
}
}
void
lit_pktlog_callback(void *context, enum WDI_EVENT event, void *log_data,
u_int16_t peer_id, uint32_t status)
{
switch (event) {
case WDI_EVENT_RX_DESC:
{
if (process_rx_desc_remote(context, log_data)) {
qdf_print("Unable to process RX info\n");
return;
}
break;
}
case WDI_EVENT_LITE_T2H:
{
if (process_pktlog_lite(context, log_data,
PKTLOG_TYPE_LITE_T2H)) {
qdf_print("Unable to process lite_t2h\n");
return;
}
break;
}
case WDI_EVENT_LITE_RX:
{
if (process_pktlog_lite(context, log_data,
PKTLOG_TYPE_LITE_RX)) {
qdf_print("Unable to process lite_rx\n");
return;
}
break;
}
default:
break;
}
}
A_STATUS
wdi_pktlog_unsubscribe(struct cdp_pdev *pdev, uint32_t log_state)
{
#ifdef CONFIG_MCL
void *soc = cds_get_context(QDF_MODULE_ID_SOC);
#else
/* TODO: WIN implementation to get soc */
#endif
if (log_state & ATH_PKTLOG_TX) {
if (cdp_wdi_event_unsub(soc, pdev,
&PKTLOG_TX_SUBSCRIBER,
WDI_EVENT_TX_STATUS)) {
return A_ERROR;
}
}
if (log_state & ATH_PKTLOG_RX) {
if (cdp_wdi_event_unsub(soc, pdev,
&PKTLOG_RX_SUBSCRIBER, WDI_EVENT_RX_DESC)) {
return A_ERROR;
}
if (cdp_wdi_event_unsub(soc, pdev,
&PKTLOG_RX_REMOTE_SUBSCRIBER,
WDI_EVENT_RX_DESC_REMOTE)) {
return A_ERROR;
}
}
if (log_state & ATH_PKTLOG_RCFIND) {
if (cdp_wdi_event_unsub(soc, pdev,
&PKTLOG_RCFIND_SUBSCRIBER,
WDI_EVENT_RATE_FIND)) {
return A_ERROR;
}
}
if (log_state & ATH_PKTLOG_RCUPDATE) {
if (cdp_wdi_event_unsub(soc, pdev,
&PKTLOG_RCUPDATE_SUBSCRIBER,
WDI_EVENT_RATE_UPDATE)) {
return A_ERROR;
}
}
if (log_state & ATH_PKTLOG_RCUPDATE) {
if (cdp_wdi_event_unsub(soc, pdev,
&PKTLOG_SW_EVENT_SUBSCRIBER,
WDI_EVENT_SW_EVENT)) {
return A_ERROR;
}
}
if (log_state & ATH_PKTLOG_LITE_T2H) {
if (cdp_wdi_event_unsub(soc, pdev,
&PKTLOG_LITE_T2H_SUBSCRIBER,
WDI_EVENT_LITE_T2H)) {
return A_ERROR;
}
}
if (log_state & ATH_PKTLOG_LITE_RX) {
if (cdp_wdi_event_unsub(soc, pdev,
&PKTLOG_LITE_RX_SUBSCRIBER,
WDI_EVENT_LITE_RX)) {
return A_ERROR;
}
}
return A_OK;
}
int pktlog_disable(struct hif_opaque_softc *scn)
{
struct pktlog_dev_t *pl_dev;
struct ath_pktlog_info *pl_info;
uint8_t save_pktlog_state;
struct cdp_pdev *txrx_pdev = get_txrx_context();
pl_dev = get_pktlog_handle();
if (!pl_dev) {
qdf_print("Invalid pl_dev");
return -EINVAL;
}
pl_info = pl_dev->pl_info;
if (!pl_dev->pl_info) {
qdf_print("Invalid pl_info");
return -EINVAL;
}
if (!txrx_pdev) {
qdf_print("Invalid cdp_pdev");
return -EINVAL;
}
if (pl_info->curr_pkt_state == PKTLOG_OPR_IN_PROGRESS ||
pl_info->curr_pkt_state ==
PKTLOG_OPR_IN_PROGRESS_READ_START_PKTLOG_DISABLED ||
pl_info->curr_pkt_state == PKTLOG_OPR_IN_PROGRESS_READ_COMPLETE ||
pl_info->curr_pkt_state ==
PKTLOG_OPR_IN_PROGRESS_CLEARBUFF_COMPLETE)
return -EBUSY;
save_pktlog_state = pl_info->curr_pkt_state;
pl_info->curr_pkt_state = PKTLOG_OPR_IN_PROGRESS;
if (pktlog_wma_post_msg(0, WMI_PDEV_PKTLOG_DISABLE_CMDID, 0, 0)) {
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("Failed to disable pktlog in target\n");
return -EINVAL;
}
if (pl_dev->is_pktlog_cb_subscribed &&
wdi_pktlog_unsubscribe(txrx_pdev, pl_info->log_state)) {
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("Cannot unsubscribe pktlog from the WDI\n");
return -EINVAL;
}
pl_dev->is_pktlog_cb_subscribed = false;
if (save_pktlog_state == PKTLOG_OPR_IN_PROGRESS_READ_START)
pl_info->curr_pkt_state =
PKTLOG_OPR_IN_PROGRESS_READ_START_PKTLOG_DISABLED;
else
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
return 0;
}
void pktlog_init(struct hif_opaque_softc *scn)
{
struct pktlog_dev_t *pl_dev = get_pktlog_handle();
struct ath_pktlog_info *pl_info;
if (pl_dev == NULL || pl_dev->pl_info == NULL) {
qdf_print("pl_dev or pl_info is invalid\n");
return;
}
pl_info = pl_dev->pl_info;
OS_MEMZERO(pl_info, sizeof(*pl_info));
PKTLOG_LOCK_INIT(pl_info);
mutex_init(&pl_info->pktlog_mutex);
pl_info->buf_size = PKTLOG_DEFAULT_BUFSIZE;
pl_info->buf = NULL;
pl_info->log_state = 0;
pl_info->init_saved_state = 0;
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
pl_info->sack_thr = PKTLOG_DEFAULT_SACK_THR;
pl_info->tail_length = PKTLOG_DEFAULT_TAIL_LENGTH;
pl_info->thruput_thresh = PKTLOG_DEFAULT_THRUPUT_THRESH;
pl_info->per_thresh = PKTLOG_DEFAULT_PER_THRESH;
pl_info->phyerr_thresh = PKTLOG_DEFAULT_PHYERR_THRESH;
pl_info->trigger_interval = PKTLOG_DEFAULT_TRIGGER_INTERVAL;
pl_info->pktlen = 0;
pl_info->start_time_thruput = 0;
pl_info->start_time_per = 0;
pl_dev->vendor_cmd_send = false;
if (pl_dev->callback_type == PKTLOG_DEFAULT_CALLBACK_REGISTRATION) {
PKTLOG_TX_SUBSCRIBER.callback = pktlog_callback;
PKTLOG_RX_SUBSCRIBER.callback = pktlog_callback;
PKTLOG_RX_REMOTE_SUBSCRIBER.callback = pktlog_callback;
PKTLOG_RCFIND_SUBSCRIBER.callback = pktlog_callback;
PKTLOG_RCUPDATE_SUBSCRIBER.callback = pktlog_callback;
PKTLOG_SW_EVENT_SUBSCRIBER.callback = pktlog_callback;
} else if (pl_dev->callback_type == PKTLOG_LITE_CALLBACK_REGISTRATION) {
PKTLOG_LITE_T2H_SUBSCRIBER.callback = lit_pktlog_callback;
PKTLOG_LITE_RX_SUBSCRIBER.callback = lit_pktlog_callback;
}
}
static int __pktlog_enable(struct hif_opaque_softc *scn, int32_t log_state,
bool ini_triggered, uint8_t user_triggered,
uint32_t is_iwpriv_command)
{
struct pktlog_dev_t *pl_dev;
struct ath_pktlog_info *pl_info;
struct cdp_pdev *cdp_pdev;
int error;
if (!scn) {
qdf_print("%s: Invalid scn context\n", __func__);
ASSERT(0);
return -EINVAL;
}
pl_dev = get_pktlog_handle();
if (!pl_dev) {
qdf_print("%s: Invalid pktlog context\n", __func__);
ASSERT(0);
return -EINVAL;
}
cdp_pdev = get_txrx_context();
if (!cdp_pdev) {
qdf_print("%s: Invalid txrx context\n", __func__);
ASSERT(0);
return -EINVAL;
}
pl_info = pl_dev->pl_info;
if (!pl_info) {
qdf_print("%s: Invalid pl_info context\n", __func__);
ASSERT(0);
return -EINVAL;
}
if (pl_info->curr_pkt_state < PKTLOG_OPR_IN_PROGRESS_CLEARBUFF_COMPLETE)
return -EBUSY;
pl_info->curr_pkt_state = PKTLOG_OPR_IN_PROGRESS;
/* is_iwpriv_command : 0 indicates its a vendor command
* log_state: 0 indicates pktlog disable command
* vendor_cmd_send flag; false means no vendor pktlog enable
* command was sent previously
*/
if (is_iwpriv_command == 0 && log_state == 0 &&
pl_dev->vendor_cmd_send == false) {
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("%s: pktlog operation not in progress\n", __func__);
return 0;
}
if (!pl_dev->tgt_pktlog_alloced) {
if (pl_info->buf == NULL) {
error = pktlog_alloc_buf(scn);
if (error != 0) {
pl_info->curr_pkt_state =
PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("%s: pktlog buff alloc failed\n",
__func__);
return -ENOMEM;
}
if (!pl_info->buf) {
pl_info->curr_pkt_state =
PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("%s: pktlog buf alloc failed\n",
__func__);
ASSERT(0);
return -ENOMEM;
}
}
spin_lock_bh(&pl_info->log_lock);
pl_info->buf->bufhdr.version = CUR_PKTLOG_VER;
pl_info->buf->bufhdr.magic_num = PKTLOG_MAGIC_NUM;
pl_info->buf->wr_offset = 0;
pl_info->buf->rd_offset = -1;
/* These below variables are used by per packet stats*/
pl_info->buf->bytes_written = 0;
pl_info->buf->msg_index = 1;
pl_info->buf->offset = PKTLOG_READ_OFFSET;
spin_unlock_bh(&pl_info->log_lock);
pl_info->start_time_thruput = os_get_timestamp();
pl_info->start_time_per = pl_info->start_time_thruput;
pl_dev->tgt_pktlog_alloced = true;
}
if (log_state != 0) {
/* WDI subscribe */
if (!pl_dev->is_pktlog_cb_subscribed) {
error = wdi_pktlog_subscribe(cdp_pdev, log_state);
if (error) {
pl_info->curr_pkt_state =
PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("Unable to subscribe to the WDI %s\n",
__func__);
return -EINVAL;
}
}
pl_dev->is_pktlog_cb_subscribed = true;
/* WMI command to enable pktlog on the firmware */
if (pktlog_enable_tgt(scn, log_state, ini_triggered,
user_triggered)) {
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("Device cannot be enabled, %s\n", __func__);
return -EINVAL;
}
if (is_iwpriv_command == 0)
pl_dev->vendor_cmd_send = true;
} else {
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
pl_dev->pl_funcs->pktlog_disable(scn);
if (is_iwpriv_command == 0)
pl_dev->vendor_cmd_send = false;
}
pl_info->log_state = log_state;
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
return 0;
}
int pktlog_enable(struct hif_opaque_softc *scn, int32_t log_state,
bool ini_triggered, uint8_t user_triggered,
uint32_t is_iwpriv_command)
{
struct pktlog_dev_t *pl_dev;
struct ath_pktlog_info *pl_info;
int err;
pl_dev = get_pktlog_handle();
if (!pl_dev) {
qdf_print("%s: invalid pl_dev handle", __func__);
return -EINVAL;
}
pl_info = pl_dev->pl_info;
if (!pl_info) {
qdf_print("%s: invalid pl_info handle", __func__);
return -EINVAL;
}
mutex_lock(&pl_info->pktlog_mutex);
err = __pktlog_enable(scn, log_state, ini_triggered,
user_triggered, is_iwpriv_command);
mutex_unlock(&pl_info->pktlog_mutex);
return err;
}
#define ONE_MEGABYTE (1024 * 1024)
#define MAX_ALLOWED_PKTLOG_SIZE (16 * ONE_MEGABYTE)
static int __pktlog_setsize(struct hif_opaque_softc *scn, int32_t size)
{
struct pktlog_dev_t *pl_dev;
struct ath_pktlog_info *pl_info;
struct cdp_pdev *pdev;
pl_dev = get_pktlog_handle();
if (!pl_dev) {
qdf_print("%s: invalid pl_dev handle", __func__);
return -EINVAL;
}
pl_info = pl_dev->pl_info;
if (!pl_info) {
qdf_print("%s: invalid pl_dev handle", __func__);
return -EINVAL;
}
pdev = get_txrx_context();
if (!pdev) {
qdf_print("%s: invalid pdev handle", __func__);
return -EINVAL;
}
if (pl_info->curr_pkt_state < PKTLOG_OPR_NOT_IN_PROGRESS) {
qdf_print("%s: pktlog is not configured", __func__);
return -EBUSY;
}
pl_info->curr_pkt_state = PKTLOG_OPR_IN_PROGRESS;
if (size < ONE_MEGABYTE || size > MAX_ALLOWED_PKTLOG_SIZE) {
qdf_print("%s: Cannot Set Pktlog Buffer size of %d bytes."
"Min required is %d MB and Max allowed is %d MB.\n",
__func__, size, (ONE_MEGABYTE/ONE_MEGABYTE),
(MAX_ALLOWED_PKTLOG_SIZE/ONE_MEGABYTE));
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("%s: Invalid requested buff size", __func__);
return -EINVAL;
}
if (size == pl_info->buf_size) {
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("%s: Pktlog Buff Size is already of same size.",
__func__);
return 0;
}
if (pl_info->log_state) {
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("%s: Logging should be disabled before changing"
"buffer size.", __func__);
return -EINVAL;
}
spin_lock_bh(&pl_info->log_lock);
if (pl_info->buf != NULL) {
if (pl_dev->is_pktlog_cb_subscribed &&
wdi_pktlog_unsubscribe(pdev, pl_info->log_state)) {
pl_info->curr_pkt_state =
PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("Cannot unsubscribe pktlog from the WDI\n");
spin_unlock_bh(&pl_info->log_lock);
return -EFAULT;
}
pktlog_release_buf(scn);
pl_dev->is_pktlog_cb_subscribed = false;
pl_dev->tgt_pktlog_alloced = false;
}
if (size != 0) {
qdf_print("%s: New Pktlog Buff Size is %d\n", __func__, size);
pl_info->buf_size = size;
}
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
spin_unlock_bh(&pl_info->log_lock);
return 0;
}
int pktlog_setsize(struct hif_opaque_softc *scn, int32_t size)
{
struct pktlog_dev_t *pl_dev;
struct ath_pktlog_info *pl_info;
int status;
pl_dev = get_pktlog_handle();
if (!pl_dev) {
qdf_print("%s: invalid pl_dev handle", __func__);
return -EINVAL;
}
pl_info = pl_dev->pl_info;
if (!pl_info) {
qdf_print("%s: invalid pl_dev handle", __func__);
return -EINVAL;
}
mutex_lock(&pl_info->pktlog_mutex);
status = __pktlog_setsize(scn, size);
mutex_unlock(&pl_info->pktlog_mutex);
return status;
}
int pktlog_clearbuff(struct hif_opaque_softc *scn, bool clear_buff)
{
struct pktlog_dev_t *pl_dev;
struct ath_pktlog_info *pl_info;
uint8_t save_pktlog_state;
pl_dev = get_pktlog_handle();
if (!pl_dev) {
qdf_print("%s: invalid pl_dev handle", __func__);
return -EINVAL;
}
pl_info = pl_dev->pl_info;
if (!pl_info) {
qdf_print("%s: invalid pl_dev handle", __func__);
return -EINVAL;
}
if (!clear_buff)
return -EINVAL;
if (pl_info->curr_pkt_state < PKTLOG_OPR_IN_PROGRESS_READ_COMPLETE ||
pl_info->curr_pkt_state ==
PKTLOG_OPR_IN_PROGRESS_CLEARBUFF_COMPLETE)
return -EBUSY;
save_pktlog_state = pl_info->curr_pkt_state;
pl_info->curr_pkt_state = PKTLOG_OPR_IN_PROGRESS;
if (pl_info->log_state) {
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("%s: Logging should be disabled before clearing "
"pktlog buffer.", __func__);
return -EINVAL;
}
if (pl_info->buf != NULL) {
if (pl_info->buf_size > 0) {
qdf_print("%s: pktlog buffer is cleared.", __func__);
memset(pl_info->buf, 0, pl_info->buf_size);
pl_dev->is_pktlog_cb_subscribed = false;
pl_dev->tgt_pktlog_alloced = false;
pl_info->buf->rd_offset = -1;
} else {
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("%s: pktlog buffer size is not proper. "
"Existing Buf size %d", __func__,
pl_info->buf_size);
return -EFAULT;
}
} else {
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
qdf_print("%s: pktlog buff is NULL", __func__);
return -EFAULT;
}
if (save_pktlog_state == PKTLOG_OPR_IN_PROGRESS_READ_COMPLETE)
pl_info->curr_pkt_state =
PKTLOG_OPR_IN_PROGRESS_CLEARBUFF_COMPLETE;
else
pl_info->curr_pkt_state = PKTLOG_OPR_NOT_IN_PROGRESS;
return 0;
}
/**
* pktlog_process_fw_msg() - process packetlog message
* @buff: buffer
*
* Return: None
*/
void pktlog_process_fw_msg(uint32_t *buff)
{
uint32_t *pl_hdr;
uint32_t log_type;
struct cdp_pdev *pdev = get_txrx_context();
#ifdef CONFIG_MCL
void *soc = cds_get_context(QDF_MODULE_ID_SOC);
#else
/*TODO: WIN implementation to get soc */
#endif
if (!pdev) {
qdf_print("%s: txrx_pdev is NULL", __func__);
return;
}
pl_hdr = buff;
log_type =
(*(pl_hdr + 1) & ATH_PKTLOG_HDR_LOG_TYPE_MASK) >>
ATH_PKTLOG_HDR_LOG_TYPE_SHIFT;
if ((log_type == PKTLOG_TYPE_TX_CTRL)
|| (log_type == PKTLOG_TYPE_TX_STAT)
|| (log_type == PKTLOG_TYPE_TX_MSDU_ID)
|| (log_type == PKTLOG_TYPE_TX_FRM_HDR)
|| (log_type == PKTLOG_TYPE_TX_VIRT_ADDR))
cdp_wdi_event_handler(soc, pdev,
WDI_EVENT_TX_STATUS, pl_hdr);
else if (log_type == PKTLOG_TYPE_RC_FIND)
cdp_wdi_event_handler(soc, pdev,
WDI_EVENT_RATE_FIND, pl_hdr);
else if (log_type == PKTLOG_TYPE_RC_UPDATE)
cdp_wdi_event_handler(soc, pdev,
WDI_EVENT_RATE_UPDATE, pl_hdr);
else if (log_type == PKTLOG_TYPE_RX_STAT)
cdp_wdi_event_handler(soc, pdev,
WDI_EVENT_RX_DESC, pl_hdr);
else if (log_type == PKTLOG_TYPE_SW_EVENT)
cdp_wdi_event_handler(soc, pdev,
WDI_EVENT_SW_EVENT, pl_hdr);
}
#if defined(QCA_WIFI_3_0_ADRASTEA)
static inline int pktlog_nbuf_check_sanity(qdf_nbuf_t nbuf)
{
int rc = 0; /* sane */
if ((!nbuf) ||
(nbuf->data < nbuf->head) ||
((nbuf->data + skb_headlen(nbuf)) > skb_end_pointer(nbuf)))
rc = -EINVAL;
return rc;
}
/**
* pktlog_t2h_msg_handler() - Target to host message handler
* @context: pdev context
* @pkt: HTC packet
*
* Return: None
*/
static void pktlog_t2h_msg_handler(void *context, HTC_PACKET *pkt)
{
struct pktlog_dev_t *pdev = (struct pktlog_dev_t *)context;
qdf_nbuf_t pktlog_t2h_msg = (qdf_nbuf_t) pkt->pPktContext;
uint32_t *msg_word;
/* check for sanity of the packet, have seen corrupted pkts */
if (pktlog_nbuf_check_sanity(pktlog_t2h_msg)) {
qdf_print("%s: packet 0x%p corrupted? Leaking...",
__func__, pktlog_t2h_msg);
/* do not free; may crash! */
QDF_ASSERT(0);
return;
}
/* check for successful message reception */
if (pkt->Status != QDF_STATUS_SUCCESS) {
if (pkt->Status != QDF_STATUS_E_CANCELED)
pdev->htc_err_cnt++;
qdf_nbuf_free(pktlog_t2h_msg);
return;
}
/* confirm alignment */
qdf_assert((((unsigned long)qdf_nbuf_data(pktlog_t2h_msg)) & 0x3) == 0);
msg_word = (uint32_t *) qdf_nbuf_data(pktlog_t2h_msg);
pktlog_process_fw_msg(msg_word);
qdf_nbuf_free(pktlog_t2h_msg);
}
/**
* pktlog_tx_resume_handler() - resume callback
* @context: pdev context
*
* Return: None
*/
static void pktlog_tx_resume_handler(void *context)
{
qdf_print("%s: Not expected", __func__);
qdf_assert(0);
}
/**
* pktlog_h2t_send_complete() - send complete indication
* @context: pdev context
* @htc_pkt: HTC packet
*
* Return: None
*/
static void pktlog_h2t_send_complete(void *context, HTC_PACKET *htc_pkt)
{
qdf_print("%s: Not expected", __func__);
qdf_assert(0);
}
/**
* pktlog_h2t_full() - queue full indication
* @context: pdev context
* @pkt: HTC packet
*
* Return: HTC action
*/
static enum htc_send_full_action pktlog_h2t_full(void *context, HTC_PACKET *pkt)
{
return HTC_SEND_FULL_KEEP;
}
/**
* pktlog_htc_connect_service() - create new endpoint for packetlog
* @pdev - pktlog pdev
*
* Return: 0 for success/failure
*/
static int pktlog_htc_connect_service(struct pktlog_dev_t *pdev)
{
struct htc_service_connect_req connect;
struct htc_service_connect_resp response;
QDF_STATUS status;
qdf_mem_set(&connect, sizeof(connect), 0);
qdf_mem_set(&response, sizeof(response), 0);
connect.pMetaData = NULL;
connect.MetaDataLength = 0;
connect.EpCallbacks.pContext = pdev;
connect.EpCallbacks.EpTxComplete = pktlog_h2t_send_complete;
connect.EpCallbacks.EpTxCompleteMultiple = NULL;
connect.EpCallbacks.EpRecv = pktlog_t2h_msg_handler;
connect.EpCallbacks.ep_resume_tx_queue = pktlog_tx_resume_handler;
/* rx buffers currently are provided by HIF, not by EpRecvRefill */
connect.EpCallbacks.EpRecvRefill = NULL;
connect.EpCallbacks.RecvRefillWaterMark = 1;
/* N/A, fill is done by HIF */
connect.EpCallbacks.EpSendFull = pktlog_h2t_full;
/*
* Specify how deep to let a queue get before htc_send_pkt will
* call the EpSendFull function due to excessive send queue depth.
*/
connect.MaxSendQueueDepth = PKTLOG_MAX_SEND_QUEUE_DEPTH;
/* disable flow control for HTT data message service */
connect.ConnectionFlags |= HTC_CONNECT_FLAGS_DISABLE_CREDIT_FLOW_CTRL;
/* connect to control service */
connect.service_id = PACKET_LOG_SVC;
status = htc_connect_service(pdev->htc_pdev, &connect, &response);
if (status != QDF_STATUS_SUCCESS) {
pdev->mt_pktlog_enabled = false;
return -EIO; /* failure */
}
pdev->htc_endpoint = response.Endpoint;
pdev->mt_pktlog_enabled = true;
return 0; /* success */
}
/**
* pktlog_htc_attach() - attach pktlog HTC service
*
* Return: 0 for success/failure
*/
int pktlog_htc_attach(void)
{
struct pktlog_dev_t *pl_pdev = get_pktlog_handle();
void *htc_pdev = cds_get_context(QDF_MODULE_ID_HTC);
if ((!pl_pdev) || (!htc_pdev)) {
qdf_print("Invalid pl_dev or htc_pdev handle");
return -EINVAL;
}
pl_pdev->htc_pdev = htc_pdev;
return pktlog_htc_connect_service(pl_pdev);
}
#else
int pktlog_htc_attach(void)
{
struct pktlog_dev_t *pl_dev = get_pktlog_handle();
if (!pl_dev) {
qdf_print("Invalid pl_dev handle");
return -EINVAL;
}
pl_dev->mt_pktlog_enabled = false;
return 0;
}
#endif
#endif /* REMOVE_PKT_LOG */
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