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6d4d584a7e
Add a tracepoint for i40e_napi_poll that allows users to get detailed information about the amount of work done. This information can help users better tune the correct NAPI parameters (like weight and budget), as well as debug NIC settings like rx-usecs and tx-usecs, etc. When perf is attached, this tracepoint only fires when not in XDP mode. An example of the output from this tracepoint: $ sudo perf trace -e i40e:i40e_napi_poll -a --call-graph=fp --libtraceevent_print [..snip..] 388.258 :0/0 i40e:i40e_napi_poll(i40e_napi_poll on dev eth2 q i40e-eth2-TxRx-9 irq 346 irq_mask 00000000,00000000,00000000,00000000,00000000,00800000 curr_cpu 23 budget 64 bpr 64 rx_cleaned 28 tx_cleaned 0 rx_clean_complete 1 tx_clean_complete 1) i40e_napi_poll ([i40e]) i40e_napi_poll ([i40e]) __napi_poll ([kernel.kallsyms]) net_rx_action ([kernel.kallsyms]) __do_softirq ([kernel.kallsyms]) common_interrupt ([kernel.kallsyms]) asm_common_interrupt ([kernel.kallsyms]) intel_idle_irq ([kernel.kallsyms]) cpuidle_enter_state ([kernel.kallsyms]) cpuidle_enter ([kernel.kallsyms]) do_idle ([kernel.kallsyms]) cpu_startup_entry ([kernel.kallsyms]) [0x243fd8] ([kernel.kallsyms]) secondary_startup_64_no_verify ([kernel.kallsyms]) Signed-off-by: Joe Damato <jdamato@fastly.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> |
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| .. | ||
| i40e_adminq_cmd.h | ||
| i40e_adminq.c | ||
| i40e_adminq.h | ||
| i40e_alloc.h | ||
| i40e_client.c | ||
| i40e_common.c | ||
| i40e_dcb_nl.c | ||
| i40e_dcb.c | ||
| i40e_dcb.h | ||
| i40e_ddp.c | ||
| i40e_debugfs.c | ||
| i40e_devids.h | ||
| i40e_diag.c | ||
| i40e_diag.h | ||
| i40e_ethtool.c | ||
| i40e_hmc.c | ||
| i40e_hmc.h | ||
| i40e_lan_hmc.c | ||
| i40e_lan_hmc.h | ||
| i40e_main.c | ||
| i40e_nvm.c | ||
| i40e_osdep.h | ||
| i40e_prototype.h | ||
| i40e_ptp.c | ||
| i40e_register.h | ||
| i40e_status.h | ||
| i40e_trace.h | ||
| i40e_txrx_common.h | ||
| i40e_txrx.c | ||
| i40e_txrx.h | ||
| i40e_type.h | ||
| i40e_virtchnl_pf.c | ||
| i40e_virtchnl_pf.h | ||
| i40e_xsk.c | ||
| i40e_xsk.h | ||
| i40e.h | ||
| Makefile | ||