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qcacmn: Add support for fragmented history recording

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Currently the history recording for any debug purpose
is done using a contiguous memory chunk. For certain
history like tx_hw_ring, tx desc or tx completion desc
history, the amount of contiguous memory required is
very huge (order 7 or 8 allocation), which have a
higher probability of failing.

In order to mitigate the above scenario, introduce the
support for recording debug history into fragmented
chunks of memory, thereby reducing the requirement of
contiguous memory.

Change-Id: Iac4fb38b6d4b095766520899853e68b4c2b83afc
CRs-Fixed: 3282269
This commit is contained in:
Rakesh Pillai
2022-09-01 10:44:05 -07:00
committed by Madan Koyyalamudi
parent 04dd6c626a
commit d706698dd1
5 changed files with 183 additions and 46 deletions
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30
dp/wifi3.0/dp_tx.c
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@@ -142,27 +142,39 @@ dp_tx_desc_history_add(struct dp_soc *soc, dma_addr_t paddr,
qdf_nbuf_t skb, uint32_t sw_cookie,
enum dp_tx_event_type type)
{
struct dp_tx_tcl_history *tx_tcl_history = &soc->tx_tcl_history;
struct dp_tx_comp_history *tx_comp_history = &soc->tx_comp_history;
struct dp_tx_desc_event *entry;
uint32_t idx;
if (qdf_unlikely(!soc->tx_tcl_history || !soc->tx_comp_history))
return;
uint16_t slot;
switch (type) {
case DP_TX_COMP_UNMAP:
case DP_TX_COMP_UNMAP_ERR:
case DP_TX_COMP_MSDU_EXT:
idx = dp_history_get_next_index(&soc->tx_comp_history->index,
DP_TX_COMP_HISTORY_SIZE);
entry = &soc->tx_comp_history->entry[idx];
if (qdf_unlikely(!tx_comp_history->allocated))
return;
dp_get_frag_hist_next_atomic_idx(&tx_comp_history->index, &idx,
&slot,
DP_TX_COMP_HIST_SLOT_SHIFT,
DP_TX_COMP_HIST_PER_SLOT_MAX,
DP_TX_COMP_HISTORY_SIZE);
entry = &tx_comp_history->entry[slot][idx];
break;
case DP_TX_DESC_MAP:
case DP_TX_DESC_UNMAP:
case DP_TX_DESC_COOKIE:
case DP_TX_DESC_FLUSH:
idx = dp_history_get_next_index(&soc->tx_tcl_history->index,
DP_TX_TCL_HISTORY_SIZE);
entry = &soc->tx_tcl_history->entry[idx];
if (qdf_unlikely(!tx_tcl_history->allocated))
return;
dp_get_frag_hist_next_atomic_idx(&tx_tcl_history->index, &idx,
&slot,
DP_TX_TCL_HIST_SLOT_SHIFT,
DP_TX_TCL_HIST_PER_SLOT_MAX,
DP_TX_TCL_HISTORY_SIZE);
entry = &tx_tcl_history->entry[slot][idx];
break;
default:
dp_info_rl("Invalid dp_tx_event_type: %d", type);