From: Ivan Malov Date: Wed, 21 Mar 2018 11:28:21 +0000 (+0000) Subject: net/sfc: add dynamic log level for MCDI messages X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=a6fae8f906ef82ca3caf49344efa3132b0a02b4c;p=dpdk.git net/sfc: add dynamic log level for MCDI messages Signed-off-by: Ivan Malov Signed-off-by: Andrew Rybchenko Reviewed-by: Andy Moreton --- diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst index c0b52d3ccb..2e4c3d873f 100644 --- a/doc/guides/nics/sfc_efx.rst +++ b/doc/guides/nics/sfc_efx.rst @@ -321,12 +321,6 @@ boolean parameters value. **auto** allows NIC firmware to make a choice based on installed licences and firmware variant configured using **sfboot**. -- ``mcdi_logging`` [bool] (default **n**) - - Enable extra logging of the communication with the NIC's management CPU. - The logging is done using RTE_LOG() with INFO level and PMD type. - The format is consumed by the Solarflare netlogdecode cross-platform tool. - - ``stats_update_period_ms`` [long] (default **1000**) Adjust period in milliseconds to update port hardware statistics. @@ -360,3 +354,9 @@ SFC EFX PMD provides the following log types available for control: Matches a subset of per-port log types registered during runtime. A full name for a particular type may be obtained by appending a dot and a PCI device identifier (``XXXX:XX:XX.X``) to the prefix. + +- ``pmd.net.sfc.mcdi`` (default level is **6** - ``RTE_LOG_NOTICE``) + + Extra logging of the communication with the NIC's management CPU. + The format of the log is consumed by the Solarflare netlogdecode + cross-platform tool. May be managed per-port, as explained above. diff --git a/drivers/net/sfc/sfc.h b/drivers/net/sfc/sfc.h index 378c675c44..65a4df24ae 100644 --- a/drivers/net/sfc/sfc.h +++ b/drivers/net/sfc/sfc.h @@ -104,7 +104,7 @@ struct sfc_mcdi { efsys_mem_t mem; enum sfc_mcdi_state state; efx_mcdi_transport_t transport; - bool logging; + uint32_t logtype; uint32_t proxy_handle; efx_rc_t proxy_result; }; diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c index ebd0a2343c..f16d520812 100644 --- a/drivers/net/sfc/sfc_ethdev.c +++ b/drivers/net/sfc/sfc_ethdev.c @@ -2065,8 +2065,7 @@ RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx, SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " " SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " " SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " " - SFC_KVARG_STATS_UPDATE_PERIOD_MS "= " - SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL); + SFC_KVARG_STATS_UPDATE_PERIOD_MS "="); RTE_INIT(sfc_driver_register_logtype); static void diff --git a/drivers/net/sfc/sfc_kvargs.c b/drivers/net/sfc/sfc_kvargs.c index 860adeb8ba..9c08bff6f3 100644 --- a/drivers/net/sfc/sfc_kvargs.c +++ b/drivers/net/sfc/sfc_kvargs.c @@ -23,7 +23,6 @@ sfc_kvargs_parse(struct sfc_adapter *sa) struct rte_devargs *devargs = eth_dev->device->devargs; const char **params = (const char *[]){ SFC_KVARG_STATS_UPDATE_PERIOD_MS, - SFC_KVARG_MCDI_LOGGING, SFC_KVARG_PERF_PROFILE, SFC_KVARG_RX_DATAPATH, SFC_KVARG_TX_DATAPATH, diff --git a/drivers/net/sfc/sfc_kvargs.h b/drivers/net/sfc/sfc_kvargs.h index 2c7aaaff21..a84dc6bff5 100644 --- a/drivers/net/sfc/sfc_kvargs.h +++ b/drivers/net/sfc/sfc_kvargs.h @@ -18,8 +18,6 @@ extern "C" { #define SFC_KVARG_VALUES_BOOL "[1|y|yes|on|0|n|no|off]" -#define SFC_KVARG_MCDI_LOGGING "mcdi_logging" - #define SFC_KVARG_PERF_PROFILE "perf_profile" #define SFC_KVARG_PERF_PROFILE_AUTO "auto" diff --git a/drivers/net/sfc/sfc_log.h b/drivers/net/sfc/sfc_log.h index 6daab1c037..d6f3435244 100644 --- a/drivers/net/sfc/sfc_log.h +++ b/drivers/net/sfc/sfc_log.h @@ -25,6 +25,12 @@ extern uint32_t sfc_logtype_driver; /** Name prefix for the per-device log type used to report basic information */ #define SFC_LOGTYPE_MAIN_STR SFC_LOGTYPE_PREFIX "main" +/** Device MCDI log type name prefix */ +#define SFC_LOGTYPE_MCDI_STR SFC_LOGTYPE_PREFIX "mcdi" + +/** Level value used by MCDI log statements */ +#define SFC_LOG_LEVEL_MCDI RTE_LOG_INFO + /* Log PMD message, automatically add prefix and \n */ #define SFC_LOG(sa, level, type, ...) \ do { \ @@ -84,4 +90,13 @@ extern uint32_t sfc_logtype_driver; RTE_FMT_TAIL(__VA_ARGS__ ,))); \ } while (0) +#define sfc_log_mcdi(sa, ...) \ + do { \ + const struct sfc_adapter *_sa = (sa); \ + \ + SFC_LOG(_sa, SFC_LOG_LEVEL_MCDI, _sa->mcdi.logtype, \ + __VA_ARGS__); \ + } while (0) + + #endif /* _SFC_LOG_H_ */ diff --git a/drivers/net/sfc/sfc_mcdi.c b/drivers/net/sfc/sfc_mcdi.c index 895c2f5d5b..007506b4eb 100644 --- a/drivers/net/sfc/sfc_mcdi.c +++ b/drivers/net/sfc/sfc_mcdi.c @@ -15,7 +15,6 @@ #include "sfc.h" #include "sfc_log.h" -#include "sfc_kvargs.h" #include "sfc_ev.h" #define SFC_MCDI_POLL_INTERVAL_MIN_US 10 /* 10us in 1us units */ @@ -176,7 +175,7 @@ sfc_mcdi_do_log(const struct sfc_adapter *sa, * at the end which is required by netlogdecode. */ buffer[position] = '\0'; - sfc_notice(sa, "%s \\", buffer); + sfc_log_mcdi(sa, "%s \\", buffer); /* Preserve prefix for the next log message */ position = pfxsize; } @@ -198,10 +197,17 @@ sfc_mcdi_logger(void *arg, efx_log_msg_t type, size_t pfxsize; size_t start; - if (!sa->mcdi.logging) + /* + * Unlike the other cases, MCDI logging implies more onerous work + * needed to produce a message. If the dynamic log level prevents + * the end result from being printed, the CPU time will be wasted. + * + * To avoid wasting time, the actual level is examined in advance. + */ + if (rte_log_get_level(sa->mcdi.logtype) < (int)SFC_LOG_LEVEL_MCDI) return; - /* The format including prefix added by sfc_notice() is the format + /* The format including prefix added by sfc_log_mcdi() is the format * consumed by the Solarflare netlogdecode tool. */ pfxsize = snprintf(buffer, sizeof(buffer), "MCDI RPC %s:", @@ -212,7 +218,7 @@ sfc_mcdi_logger(void *arg, efx_log_msg_t type, start = sfc_mcdi_do_log(sa, buffer, data, data_size, pfxsize, start); if (start != pfxsize) { buffer[start] = '\0'; - sfc_notice(sa, "%s", buffer); + sfc_log_mcdi(sa, "%s", buffer); } } @@ -250,11 +256,8 @@ sfc_mcdi_init(struct sfc_adapter *sa) if (rc != 0) goto fail_dma_alloc; - /* Convert negative error to positive used in the driver */ - rc = sfc_kvargs_process(sa, SFC_KVARG_MCDI_LOGGING, - sfc_kvarg_bool_handler, &mcdi->logging); - if (rc != 0) - goto fail_kvargs_process; + mcdi->logtype = sfc_register_logtype(sa, SFC_LOGTYPE_MCDI_STR, + RTE_LOG_NOTICE); emtp = &mcdi->transport; emtp->emt_context = sa; @@ -274,8 +277,6 @@ sfc_mcdi_init(struct sfc_adapter *sa) fail_mcdi_init: memset(emtp, 0, sizeof(*emtp)); - -fail_kvargs_process: sfc_dma_free(sa, &mcdi->mem); fail_dma_alloc: