samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

qcacmn: Add debug info support for rx descriptors

Browse Source 
Add debug info support for rx descriptors to log
the caller func name and timestamp in replenish
and free scenario.

Change-Id: I1d9b855d14f705094f241bae653f33a94d0e39b7
CRs-Fixed: 2677288
This commit is contained in:
Yeshwanth Sriram Guntuka
2020-05-07 21:09:32 +05:30
committed by nshrivas
parent 6f95b4aadb
commit 8a2c60e8f5
3 changed files with 129 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

122
dp/wifi3.0/dp_rx.h
View File

@@ -62,6 +62,35 @@
#define DP_RX_DESC_MAGIC 0xdec0de
/**
* enum dp_rx_desc_state
*
* @RX_DESC_REPLENISH: rx desc replenished
* @RX_DESC_FREELIST: rx desc in freelist
*/
enum dp_rx_desc_state {
RX_DESC_REPLENISHED,
RX_DESC_IN_FREELIST,
};
/**
* struct dp_rx_desc_dbg_info
*
* @freelist_caller: name of the function that put the
* the rx desc in freelist
* @freelist_ts: timestamp when the rx desc is put in
* a freelist
* @replenish_caller: name of the function that last
* replenished the rx desc
* @replenish_ts: last replenish timestamp
*/
struct dp_rx_desc_dbg_info {
char freelist_caller[QDF_MEM_FUNC_NAME_SIZE];
uint64_t freelist_ts;
char replenish_caller[QDF_MEM_FUNC_NAME_SIZE];
uint64_t replenish_ts;
};
/**
* struct dp_rx_desc
*
@@ -87,6 +116,7 @@ struct dp_rx_desc {
uint8_t pool_id;
#ifdef RX_DESC_DEBUG_CHECK
uint32_t magic;
struct dp_rx_desc_dbg_info *dbg_info;
#endif
uint8_t in_use:1,
unmapped:1;
@@ -137,6 +167,14 @@ struct dp_rx_desc {
#define FRAME_MASK_IPV4_EAPOL 4
#define FRAME_MASK_IPV6_DHCP 8
#define dp_rx_add_to_free_desc_list(head, tail, new) \
__dp_rx_add_to_free_desc_list(head, tail, new, __func__)
#define dp_rx_buffers_replenish(soc, mac_id, rxdma_srng, rx_desc_pool, \
num_buffers, desc_list, tail) \
__dp_rx_buffers_replenish(soc, mac_id, rxdma_srng, rx_desc_pool, \
num_buffers, desc_list, tail, __func__)
#ifdef DP_RX_SPECIAL_FRAME_NEED
/**
* dp_rx_is_special_frame() - check is RX frame special needed
@@ -640,19 +678,92 @@ void dp_rx_desc_pool_free(struct dp_soc *soc,
void dp_rx_deliver_raw(struct dp_vdev *vdev, qdf_nbuf_t nbuf_list,
struct dp_peer *peer);
#ifdef RX_DESC_DEBUG_CHECK
/*
* dp_rx_desc_alloc_dbg_info() - Alloc memory for rx descriptor debug
* structure
* @rx_desc: rx descriptor pointer
*
* Return: None
*/
static inline
void dp_rx_desc_alloc_dbg_info(struct dp_rx_desc *rx_desc)
{
rx_desc->dbg_info = qdf_mem_malloc(sizeof(struct dp_rx_desc_dbg_info));
}
/*
* dp_rx_desc_free_dbg_info() - Free rx descriptor debug
* structure memory
* @rx_desc: rx descriptor pointer
*
* Return: None
*/
static inline
void dp_rx_desc_free_dbg_info(struct dp_rx_desc *rx_desc)
{
qdf_mem_free(rx_desc->dbg_info);
}
/*
* dp_rx_desc_update_dbg_info() - Update rx descriptor debug info
* structure memory
* @rx_desc: rx descriptor pointer
*
* Return: None
*/
static
void dp_rx_desc_update_dbg_info(struct dp_rx_desc *rx_desc,
const char *func_name, uint8_t flag)
{
struct dp_rx_desc_dbg_info *info = rx_desc->dbg_info;
if (!info)
return;
if (flag == RX_DESC_REPLENISHED) {
qdf_str_lcopy(info->replenish_caller, func_name,
QDF_MEM_FUNC_NAME_SIZE);
info->replenish_ts = qdf_get_log_timestamp();
} else {
qdf_str_lcopy(info->freelist_caller, func_name,
QDF_MEM_FUNC_NAME_SIZE);
info->freelist_ts = qdf_get_log_timestamp();
}
}
#else
static inline
void dp_rx_desc_alloc_dbg_info(struct dp_rx_desc *rx_desc)
{
}
static inline
void dp_rx_desc_free_dbg_info(struct dp_rx_desc *rx_desc)
{
}
static inline
void dp_rx_desc_update_dbg_info(struct dp_rx_desc *rx_desc,
const char *func_name, uint8_t flag)
{
}
#endif /* RX_DESC_DEBUG_CHECK */
/**
* dp_rx_add_to_free_desc_list() - Adds to a local free descriptor list
*
* @head: pointer to the head of local free list
* @tail: pointer to the tail of local free list
* @new: new descriptor that is added to the free list
* @func_name: caller func name
*
* Return: void:
*/
static inline
void dp_rx_add_to_free_desc_list(union dp_rx_desc_list_elem_t **head,
void __dp_rx_add_to_free_desc_list(union dp_rx_desc_list_elem_t **head,
union dp_rx_desc_list_elem_t **tail,
struct dp_rx_desc *new)
struct dp_rx_desc *new, const char *func_name)
{
qdf_assert(head && new);
@@ -665,6 +776,7 @@ void dp_rx_add_to_free_desc_list(union dp_rx_desc_list_elem_t **head,
if (!*tail || !(*head)->next)
*tail = *head;
dp_rx_desc_update_dbg_info(new, func_name, RX_DESC_IN_FREELIST);
}
uint8_t dp_rx_process_invalid_peer(struct dp_soc *soc, qdf_nbuf_t nbuf,
@@ -1023,14 +1135,16 @@ void dp_rx_mon_update_protocol_flow_tag(struct dp_soc *soc,
* or NULL during dp rx initialization or out of buffer
* interrupt.
* @tail: tail of descs list
* @func_name: name of the caller function
* Return: return success or failure
*/
QDF_STATUS dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id,
QDF_STATUS __dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id,
struct dp_srng *dp_rxdma_srng,
struct rx_desc_pool *rx_desc_pool,
uint32_t num_req_buffers,
union dp_rx_desc_list_elem_t **desc_list,
union dp_rx_desc_list_elem_t **tail);
union dp_rx_desc_list_elem_t **tail,
const char *func_name);
/*
* dp_pdev_rx_buffers_attach() - replenish rxdma ring with rx nbufs