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qcacld-3.0: Debugfs Implementation for dp trace collection

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Implement debugfs interface to dump DP trace buffer
to a debugfs file.

Change-Id: I51ac3acbfc404b87cacc8a247f85cc4ee9971b61
CRs-Fixed: 2180977
This commit is contained in:
Rakshith Suresh Patkar 2018-04-17 16:17:12 +05:30 committed by nshrivas
parent 7d51ec65a6
commit 44f6a8f1d9
2 changed files with 98 additions and 0 deletions
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91
core/dp/txrx/ol_txrx.c
View File

@ -32,6 +32,7 @@
#include <qdf_types.h> /* qdf_device_t, qdf_print */
#include <qdf_lock.h> /* qdf_spinlock */
#include <qdf_atomic.h> /* qdf_atomic_read */
#include <qdf_debugfs.h>
#if defined(HIF_PCI) || defined(HIF_SNOC) || defined(HIF_AHB)
/* Required for WLAN_FEATURE_FASTPATH */
@ -93,6 +94,11 @@
#include "wlan_roam_debug.h"
#ifdef QCA_SUPPORT_TXRX_LOCAL_PEER_ID
#define DPT_DEBUGFS_PERMS (QDF_FILE_USR_READ | \
QDF_FILE_USR_WRITE | \
QDF_FILE_GRP_READ | \
QDF_FILE_OTH_READ)
ol_txrx_peer_handle
ol_txrx_peer_find_by_local_id(struct cdp_pdev *pdev,
uint8_t local_peer_id);
@ -1256,6 +1262,82 @@ static void ol_txrx_tso_stats_clear(ol_txrx_pdev_handle pdev)
}
#endif /* defined(FEATURE_TSO) && defined(FEATURE_TSO_DEBUG) */
/**
* ol_txrx_read_dpt_buff_debugfs() - read dp trace buffer
* @file: file to read
* @arg: pdev object
*
* Return: QDF_STATUS
*/
static QDF_STATUS ol_txrx_read_dpt_buff_debugfs(qdf_debugfs_file_t file,
void *arg)
{
struct ol_txrx_pdev_t *pdev = (struct ol_txrx_pdev_t *)arg;
uint32_t i = 0;
QDF_STATUS status = QDF_STATUS_SUCCESS;
if (pdev->state == QDF_DPT_DEBUGFS_STATE_SHOW_STATE_INVALID)
return QDF_STATUS_E_INVAL;
else if (pdev->state == QDF_DPT_DEBUGFS_STATE_SHOW_COMPLETE) {
pdev->state = QDF_DPT_DEBUGFS_STATE_SHOW_STATE_INIT;
return QDF_STATUS_SUCCESS;
}
i = qdf_dpt_get_curr_pos_debugfs(file, pdev->state);
status = qdf_dpt_dump_stats_debugfs(file, i);
if (status == QDF_STATUS_E_FAILURE)
pdev->state = QDF_DPT_DEBUGFS_STATE_SHOW_IN_PROGRESS;
else if (status == QDF_STATUS_SUCCESS)
pdev->state = QDF_DPT_DEBUGFS_STATE_SHOW_COMPLETE;
return status;
}
/**
* ol_txrx_write_dpt_buff_debugfs() - set dp trace parameters
* @priv: pdev object
* @buf: buff to get value for dpt parameters
* @len: buf length
*
* Return: QDF_STATUS
*/
static QDF_STATUS ol_txrx_write_dpt_buff_debugfs(void *priv,
const char *buf,
qdf_size_t len)
{
return QDF_STATUS_SUCCESS;
}
static int ol_txrx_debugfs_init(struct ol_txrx_pdev_t *pdev)
{
pdev->dpt_debugfs_fops.show = ol_txrx_read_dpt_buff_debugfs;
pdev->dpt_debugfs_fops.write = ol_txrx_write_dpt_buff_debugfs;
pdev->dpt_debugfs_fops.priv = pdev;
pdev->dpt_stats_log_dir = qdf_debugfs_create_dir("dpt_stats", NULL);
if (!pdev->dpt_stats_log_dir) {
QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR,
"%s: error while creating debugfs dir for %s",
__func__, "dpt_stats");
pdev->state = QDF_DPT_DEBUGFS_STATE_SHOW_STATE_INVALID;
return -EBUSY;
}
if (!qdf_debugfs_create_file("dump_set_dpt_logs", DPT_DEBUGFS_PERMS,
pdev->dpt_stats_log_dir,
&pdev->dpt_debugfs_fops)) {
QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR,
"%s: debug Entry creation failed!",
__func__);
pdev->state = QDF_DPT_DEBUGFS_STATE_SHOW_STATE_INVALID;
return -EBUSY;
}
pdev->state = QDF_DPT_DEBUGFS_STATE_SHOW_STATE_INIT;
return 0;
}
/**
* ol_txrx_pdev_attach() - allocate txrx pdev
* @ctrl_pdev: cfg pdev
@ -1340,6 +1422,8 @@ ol_txrx_pdev_attach(ol_txrx_soc_handle soc, struct cdp_cfg *ctrl_pdev,
pdev->tid_to_ac[OL_TX_NUM_TIDS + OL_TX_VDEV_DEFAULT_MGMT] =
OL_TX_SCHED_WRR_ADV_CAT_MCAST_MGMT;
ol_txrx_debugfs_init(pdev);
return (struct cdp_pdev *)pdev;
fail3:
@ -2075,6 +2159,11 @@ static void ol_txrx_pdev_pre_detach(struct cdp_pdev *ppdev, int force)
#endif
}
static void ol_txrx_debugfs_exit(ol_txrx_pdev_handle pdev)
{
qdf_debugfs_remove_dir_recursive(pdev->dpt_stats_log_dir);
}
/**
* ol_txrx_pdev_detach() - delete the data SW state
* @ppdev - the data physical device object being removed
@ -2142,6 +2231,8 @@ static void ol_txrx_pdev_detach(struct cdp_pdev *ppdev, int force)
ol_txrx_pdev_txq_log_destroy(pdev);
ol_txrx_pdev_grp_stat_destroy(pdev);
ol_txrx_debugfs_exit(pdev);
qdf_mem_free(pdev);
}

7
core/dp/txrx/ol_txrx_types.h
View File

@ -51,6 +51,7 @@
#include "ol_txrx_osif_api.h" /* ol_rx_callback */
#include "cdp_txrx_flow_ctrl_v2.h"
#include "cdp_txrx_peer_ops.h"
#include <qdf_trace.h>
/*
* The target may allocate multiple IDs for a peer.
@ -538,6 +539,7 @@ struct ol_txrx_stats_req_internal {
int offset;
};
/*
* As depicted in the diagram below, the pdev contains an array of
* NUM_EXT_TID ol_tx_active_queues_in_tid_t elements.
@ -1009,6 +1011,11 @@ struct ol_txrx_pdev_t {
struct ol_txrx_peer_t *self_peer;
qdf_work_t peer_unmap_timer_work;
/* dp debug fs */
struct dentry *dpt_stats_log_dir;
enum qdf_dpt_debugfs_state state;
struct qdf_debugfs_fops dpt_debugfs_fops;
#ifdef IPA_OFFLOAD
ipa_uc_op_cb_type ipa_uc_op_cb;
void *usr_ctxt;