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qcacld-3.0: Add support for cnss logger module

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qcacld-2.0 to qcacld-3.0 propagation

CONFIG_CNSS_LOGGER is introduced to move the logging feature from
CLD driver to kernel module.

This change will mainly benefit for two things for CLD driver.

    - To support for dual wifi driver instances and also
      future plan of moving out the logging thread and buffer
      management to the kernel module.

    - While debugging the critical feature that triggers the
      autoshutdown and SSR, the log buffer in the CLD driver will
      be lost after the driver restart or unload.

The CLD driver will register itself to the cnss logging module and
get the radio index as the indentification for rest of the operation.

Also the message sent from CLD driver to usespace need to be packed with
struct tAniNlHdr; and the hddctx.radio_index need to be filled along with
the message, so that usespace can differentiate the message.

Change-Id: I7ea6cdefac0916b9d4dd76da175607bf7169a8fa
CRs-fixed: 995073
This commit is contained in:
Ryan Hsu
2016-04-28 10:20:14 -07:00
committed by Gerrit - the friendly Code Review server
parent 5e2e20529e
commit ceddceb391
11 changed files with 381 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
core/utils/logging/src/wlan_logging_sock_svc.c
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@@ -253,10 +253,11 @@ static int wlan_queue_logmsg_for_app(void)
#ifdef QCA_WIFI_3_0_ADRASTEA
/**
* wlan_add_user_log_time_stamp() - add time stamp in WLAN log buffer
* wlan_add_user_log_radio_time_stamp() - add radio and time stamp in log buffer
* @tbuf: Pointer to time stamp buffer
* @tbuf_sz: Time buffer size
* @ts: Time stamp value
* @radoi: the radio index
*
* For adrastea time stamp is QTIMER raw tick which will be used by cnss_diag
* to convert it into user visible time stamp. In adrstea FW also uses QTIMER
@@ -266,19 +267,22 @@ static int wlan_queue_logmsg_for_app(void)
* For discrete solution e.g rome use system tick and convert it into
* seconds.milli seconds
*/
static int wlan_add_user_log_time_stamp(char *tbuf, size_t tbuf_sz, uint64_t ts)
static int wlan_add_user_log_radio_time_stamp(char *tbuf, size_t tbuf_sz,
uint64_t ts, int radio)
{
int tlen;
tlen = scnprintf(tbuf, tbuf_sz, "[%s][%llu] ", current->comm, ts);
tlen = scnprintf(tbuf, tbuf_sz, "R%d: [%s][%llu] ",
radio, current->comm, ts);
return tlen;
}
#else
/**
* wlan_add_user_log_time_stamp() - add time stamp in WLAN log buffer
* wlan_add_user_log_radio_time_stamp() - add radio and time stamp in log buffer
* @tbuf: Pointer to time stamp buffer
* @tbuf_sz: Time buffer size
* @ts: Time stamp value
* @radio: the radio index
*
* For adrastea time stamp QTIMER raw tick which will be used by cnss_diag
* to convert it into user visible time stamp
@@ -286,14 +290,15 @@ static int wlan_add_user_log_time_stamp(char *tbuf, size_t tbuf_sz, uint64_t ts)
* For discrete solution e.g rome use system tick and convert it into
* seconds.milli seconds
*/
static int wlan_add_user_log_time_stamp(char *tbuf, size_t tbuf_sz, uint64_t ts)
static int wlan_add_user_log_radio_time_stamp(char *tbuf, size_t tbuf_sz,
uint64_t ts, int radio)
{
int tlen;
uint32_t rem;
rem = do_div(ts, QDF_MC_TIMER_TO_SEC_UNIT);
tlen = scnprintf(tbuf, tbuf_sz, "[%s][%lu.%06lu] ", current->comm,
(unsigned long) ts, (unsigned long)rem);
tlen = scnprintf(tbuf, tbuf_sz, "R%d: [%s][%lu.%06lu] ", radio,
current->comm, (unsigned long) ts, (unsigned long)rem);
return tlen;
}
#endif
@@ -309,8 +314,11 @@ int wlan_log_to_user(QDF_TRACE_LEVEL log_level, char *to_be_sent, int length)
bool wake_up_thread = false;
unsigned long flags;
uint64_t ts;
int radio;
if (!cds_is_multicast_logging()) {
radio = cds_get_radio_index();
if (!cds_is_multicast_logging() || radio == -EINVAL) {
/*
* This is to make sure that we print the logs to kmsg console
* when no logger app is running. This is also needed to
@@ -319,12 +327,20 @@ int wlan_log_to_user(QDF_TRACE_LEVEL log_level, char *to_be_sent, int length)
* register with driver immediately and start logging all the
* messages.
*/
pr_info("%s\n", to_be_sent);
/*
* R%d: if the radio index is invalid, just post the message
* to console.
* Also the radio index shouldn't happen to be EINVAL, but if
* that happen just print it, so that the logging would be
* aware the cnss_logger is somehow failed.
*/
pr_info("R%d: %s\n", radio, to_be_sent);
return 0;
}
ts = qdf_get_log_timestamp();
tlen = wlan_add_user_log_time_stamp(tbuf, sizeof(tbuf), ts);
tlen = wlan_add_user_log_radio_time_stamp(tbuf, sizeof(tbuf), ts,
radio);
/* 1+1 indicate '\n'+'\0' */
total_log_len = length + tlen + 1 + 1;