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Merge pull request #92 from DUNE-DAQ/roland-sipos/xstats
Roland sipos/xstats
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| #ifndef DPDKLIBS_INCLUDE_DPDKLIBS_XSTATSHELPER_HPP_ | ||
| #define DPDKLIBS_INCLUDE_DPDKLIBS_XSTATSHELPER_HPP_ | ||
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| #include <rte_ethdev.h> | ||
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| namespace dunedaq::dpdklibs { | ||
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| struct IfaceXstats { | ||
| IfaceXstats(){} | ||
| ~IfaceXstats() | ||
| { | ||
| if (m_xstats_values != nullptr) { | ||
| free(m_xstats_values); | ||
| } | ||
| if (m_xstats_ids != nullptr) { | ||
| free(m_xstats_ids); | ||
| } | ||
| if (m_xstats_names != nullptr) { | ||
| free(m_xstats_names); | ||
| } | ||
| } | ||
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| void setup(int iface) { | ||
| m_iface_id = iface; | ||
| rte_eth_stats_reset(m_iface_id); | ||
| rte_eth_xstats_reset(m_iface_id); | ||
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| // Get number of stats | ||
| m_len = rte_eth_xstats_get_names_by_id(m_iface_id, NULL, NULL, 0); | ||
| if (m_len < 0) { | ||
| printf("Cannot get xstats count\n"); | ||
| } | ||
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| // Get names of HW registered stat fields | ||
| m_xstats_names = (rte_eth_xstat_name*)(malloc(sizeof(struct rte_eth_xstat_name) * m_len)); | ||
| if (m_xstats_names == nullptr) { | ||
| printf("Cannot allocate memory for xstat names\n"); | ||
| } | ||
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| // Retrieve xstats names, passing NULL for IDs to return all statistics | ||
| if (m_len != rte_eth_xstats_get_names(m_iface_id, m_xstats_names, m_len)) { | ||
| printf("Cannot get xstat names\n"); | ||
| } | ||
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| // Allocate value fields | ||
| m_xstats_values = (uint64_t*)(malloc(sizeof(m_xstats_values) * m_len)); | ||
| if (m_xstats_values == nullptr) { | ||
| printf("Cannot allocate memory for xstats\n"); | ||
| } | ||
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| // Getting xstats values (this is that we call in a loop/get_info | ||
| if (m_len != rte_eth_xstats_get_by_id(m_iface_id, nullptr, m_xstats_values, m_len)) { | ||
| printf("Cannot get xstat values\n"); | ||
| } | ||
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| // Print all xstats names and values to be amazed (WOW!) | ||
| TLOG() << "Registered HW based metrics: "; | ||
| for (int i = 0; i < m_len; i++) { | ||
| TLOG() << " XName: " << m_xstats_names[i].name; | ||
| } | ||
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| m_allocated = true; | ||
| }; | ||
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| void reset_counters() { | ||
| if (m_allocated) { | ||
| rte_eth_xstats_reset(m_iface_id); //{ | ||
| // TLOG() << "Cannot reset xstat values!"; | ||
| //} else { | ||
| //} | ||
| } | ||
| } | ||
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| void poll() { | ||
| if (m_allocated) { | ||
| if (m_len != rte_eth_xstats_get_by_id(m_iface_id, nullptr, m_xstats_values, m_len)) { | ||
| TLOG() << "Cannot get xstat values!"; | ||
| //} else { | ||
| } | ||
| } | ||
| } | ||
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| int m_iface_id; | ||
| bool m_allocated = false; | ||
| struct rte_eth_xstat_name *m_xstats_names; | ||
| uint64_t *m_xstats_ids; | ||
| uint64_t *m_xstats_values; | ||
| int m_len; | ||
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| }; | ||
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| } | ||
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| #endif // DPDKLIBS_INCLUDE_DPDKLIBS_XSTATSHELPER_HPP_ |
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