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Revert "[buffer orch] Bugfix: Don't query counter SAI_BUFFER_POOL_STA…
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…T_XOFF_ROOM_WATERMARK_BYTES on a pool where it is not supported (#1857)" (#1945)

This reverts commit 3d6b1f0.

Fix sonic-net/sonic-buildimage#8893

What I did
This commit had earlier caused issue on master image warmboot - sonic-net/sonic-buildimage#8722

To fix this issue, this PR was created to retreat sonic-swss head on buildimage - sonic-net/sonic-buildimage#8732

Now, this commit was again pulled into sonic-buildimage as part of sonic-swss submodule advance:
sonic-net/sonic-buildimage#8839

And, warm-reboot again broke for the same reason.

This change is so that any other swss submodule update on buildimage will not fail warmboot again.
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@vaibhavhd
vaibhavhd authored Oct 6, 2021
1 parent da49332 commit 94d2d44
Showing 1 changed file with 17 additions and 64 deletions.
81 changes: 17 additions & 64 deletions orchagent/bufferorch.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -22,16 +22,6 @@ extern sai_object_id_t gSwitchId;


static const vector<sai_buffer_pool_stat_t> bufferPoolWatermarkStatIds =
{
SAI_BUFFER_POOL_STAT_WATERMARK_BYTES
};

static const vector<sai_buffer_pool_stat_t> bufferSharedHeadroomPoolWatermarkStatIds =
{
SAI_BUFFER_POOL_STAT_XOFF_ROOM_WATERMARK_BYTES
};

static const vector<sai_buffer_pool_stat_t> bufferPoolAllWatermarkStatIds =
{
SAI_BUFFER_POOL_STAT_WATERMARK_BYTES,
SAI_BUFFER_POOL_STAT_XOFF_ROOM_WATERMARK_BYTES
Expand Down Expand Up @@ -234,60 +224,29 @@ void BufferOrch::generateBufferPoolWatermarkCounterIdList(void)
}

// Detokenize the SAI watermark stats to a string, separated by comma
string statListBufferPoolOnly;
string statList;
for (const auto &it : bufferPoolWatermarkStatIds)
{
statListBufferPoolOnly += (sai_serialize_buffer_pool_stat(it) + list_item_delimiter);
statList += (sai_serialize_buffer_pool_stat(it) + list_item_delimiter);
}
string statListBufferPoolAndSharedHeadroomPool = statListBufferPoolOnly;
for (const auto &it : bufferSharedHeadroomPoolWatermarkStatIds)
if (!statList.empty())
{
statListBufferPoolAndSharedHeadroomPool += (sai_serialize_buffer_pool_stat(it) + list_item_delimiter);
}
if (!statListBufferPoolOnly.empty())
{
statListBufferPoolOnly.pop_back();
}
if (!statListBufferPoolAndSharedHeadroomPool.empty())
{
statListBufferPoolAndSharedHeadroomPool.pop_back();
statList.pop_back();
}

// Some platforms do not support buffer pool watermark clear operation on a particular pool
// Invoke the SAI clear_stats API per pool to query the capability from the API call return status
// Some platforms do not support shared headroom pool watermark read operation on a particular pool
// Invoke the SAI get_buffer_pool_stats API per pool to query the capability from the API call return status.
// We use bit mask to mark the clear watermark capability of each buffer pool. We use an unsigned int to place hold
// these bits. This assumes the total number of buffer pools to be no greater than 32, which should satisfy all use cases.
unsigned int noWmClrCapability = 0;
unsigned int noSharedHeadroomPoolWmRdCapability = 0;
unsigned int bitMask = 1;
uint32_t size = static_cast<uint32_t>(bufferSharedHeadroomPoolWatermarkStatIds.size());
vector<uint64_t> counterData(size);
for (const auto &it : *(m_buffer_type_maps[APP_BUFFER_POOL_TABLE_NAME]))
{
sai_status_t status;
// Check whether shared headroom pool water mark is supported
status = sai_buffer_api->get_buffer_pool_stats(
it.second.m_saiObjectId,
size,
reinterpret_cast<const sai_stat_id_t *>(bufferSharedHeadroomPoolWatermarkStatIds.data()),
counterData.data());
if (SAI_STATUS_IS_ATTR_NOT_SUPPORTED(status) || SAI_STATUS_IS_ATTR_NOT_IMPLEMENTED(status)
|| status == SAI_STATUS_NOT_SUPPORTED || status == SAI_STATUS_NOT_IMPLEMENTED)
{
SWSS_LOG_NOTICE("Read shared headroom pool watermark failed on %s, rv: %s", it.first.c_str(), sai_serialize_status(status).c_str());
noSharedHeadroomPoolWmRdCapability |= bitMask;
}

const auto &watermarkStatIds = (noSharedHeadroomPoolWmRdCapability & bitMask) ? bufferPoolWatermarkStatIds : bufferPoolAllWatermarkStatIds;

status = sai_buffer_api->clear_buffer_pool_stats(
sai_status_t status = sai_buffer_api->clear_buffer_pool_stats(
it.second.m_saiObjectId,
static_cast<uint32_t>(watermarkStatIds.size()),
reinterpret_cast<const sai_stat_id_t *>(watermarkStatIds.data()));
if (SAI_STATUS_IS_ATTR_NOT_SUPPORTED(status) || SAI_STATUS_IS_ATTR_NOT_IMPLEMENTED(status)
|| status == SAI_STATUS_NOT_SUPPORTED || status == SAI_STATUS_NOT_IMPLEMENTED)
static_cast<uint32_t>(bufferPoolWatermarkStatIds.size()),
reinterpret_cast<const sai_stat_id_t *>(bufferPoolWatermarkStatIds.data()));
if (status == SAI_STATUS_NOT_SUPPORTED || status == SAI_STATUS_NOT_IMPLEMENTED)
{
SWSS_LOG_NOTICE("Clear watermark failed on %s, rv: %s", it.first.c_str(), sai_serialize_status(status).c_str());
noWmClrCapability |= bitMask;
Expand All @@ -306,21 +265,11 @@ void BufferOrch::generateBufferPoolWatermarkCounterIdList(void)

// Push buffer pool watermark COUNTER_ID_LIST to FLEX_COUNTER_TABLE on a per buffer pool basis
vector<FieldValueTuple> fvTuples;

fvTuples.emplace_back(BUFFER_POOL_COUNTER_ID_LIST, statList);
bitMask = 1;
for (const auto &it : *(m_buffer_type_maps[APP_BUFFER_POOL_TABLE_NAME]))
{
string key = BUFFER_POOL_WATERMARK_STAT_COUNTER_FLEX_COUNTER_GROUP ":" + sai_serialize_object_id(it.second.m_saiObjectId);
fvTuples.clear();

if (noSharedHeadroomPoolWmRdCapability & bitMask)
{
fvTuples.emplace_back(BUFFER_POOL_COUNTER_ID_LIST, statListBufferPoolOnly);
}
else
{
fvTuples.emplace_back(BUFFER_POOL_COUNTER_ID_LIST, statListBufferPoolAndSharedHeadroomPool);
}

if (noWmClrCapability)
{
Expand All @@ -330,11 +279,15 @@ void BufferOrch::generateBufferPoolWatermarkCounterIdList(void)
stats_mode = STATS_MODE_READ;
}
fvTuples.emplace_back(STATS_MODE_FIELD, stats_mode);
}

m_flexCounterTable->set(key, fvTuples);

bitMask <<= 1;
m_flexCounterTable->set(key, fvTuples);
fvTuples.pop_back();
bitMask <<= 1;
}
else
{
m_flexCounterTable->set(key, fvTuples);
}
}

m_isBufferPoolWatermarkCounterIdListGenerated = true;
Expand Down

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