From 0b45f392c6c92e9823d6332622d7a45e7a36365e Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Tue, 23 Nov 2021 19:41:01 +0200 Subject: [PATCH 33/35] cmis: Print Module-Level Controls Print the CMIS Module-Level Controls when dumping EEPROM contents via the '-m' option. It can be used to understand low power mode enforcement by the host. Example output: # ethtool -m swp11 Identifier : 0x18 (QSFP-DD Double Density 8X Pluggable Transceiver (INF-8628)) ... Module State : 0x03 (ModuleReady) LowPwrAllowRequestHW : Off LowPwrRequestSW : Off ... Transmit avg optical power (Channel 1) : 1.3222 mW / 1.21 dBm Transmit avg optical power (Channel 2) : 1.2666 mW / 1.03 dBm Transmit avg optical power (Channel 3) : 1.2860 mW / 1.09 dBm Transmit avg optical power (Channel 4) : 1.2988 mW / 1.14 dBm Transmit avg optical power (Channel 5) : 1.2828 mW / 1.08 dBm Transmit avg optical power (Channel 6) : 1.2913 mW / 1.11 dBm Transmit avg optical power (Channel 7) : 1.2636 mW / 1.02 dBm Transmit avg optical power (Channel 8) : 1.3408 mW / 1.27 dBm Transmit avg optical power (Channel 9) : 1.3222 mW / 1.21 dBm Transmit avg optical power (Channel 10) : 1.2666 mW / 1.03 dBm Transmit avg optical power (Channel 11) : 1.2860 mW / 1.09 dBm Transmit avg optical power (Channel 12) : 1.2988 mW / 1.14 dBm Transmit avg optical power (Channel 13) : 1.2828 mW / 1.08 dBm Transmit avg optical power (Channel 14) : 1.2913 mW / 1.11 dBm Transmit avg optical power (Channel 15) : 1.2636 mW / 1.02 dBm Transmit avg optical power (Channel 16) : 1.3408 mW / 1.27 dBm Rcvr signal avg optical power (Channel 1) : 1.1351 mW / 0.55 dBm Rcvr signal avg optical power (Channel 2) : 1.1603 mW / 0.65 dBm Rcvr signal avg optical power (Channel 3) : 1.1529 mW / 0.62 dBm Rcvr signal avg optical power (Channel 4) : 1.1670 mW / 0.67 dBm Rcvr signal avg optical power (Channel 5) : 1.1759 mW / 0.70 dBm Rcvr signal avg optical power (Channel 6) : 1.1744 mW / 0.70 dBm Rcvr signal avg optical power (Channel 7) : 1.1188 mW / 0.49 dBm Rcvr signal avg optical power (Channel 8) : 1.1640 mW / 0.66 dBm Rcvr signal avg optical power (Channel 9) : 1.1351 mW / 0.55 dBm Rcvr signal avg optical power (Channel 10) : 1.1603 mW / 0.65 dBm Rcvr signal avg optical power (Channel 11) : 1.1529 mW / 0.62 dBm Rcvr signal avg optical power (Channel 12) : 1.1670 mW / 0.67 dBm Rcvr signal avg optical power (Channel 13) : 1.1759 mW / 0.70 dBm Rcvr signal avg optical power (Channel 14) : 1.1744 mW / 0.70 dBm Rcvr signal avg optical power (Channel 15) : 1.1188 mW / 0.49 dBm Rcvr signal avg optical power (Channel 16) : 1.1640 mW / 0.66 dBm # ethtool --set-module swp11 power-mode-policy auto # ethtool -m swp11 Identifier : 0x18 (QSFP-DD Double Density 8X Pluggable Transceiver (INF-8628)) ... Module State : 0x01 (ModuleLowPwr) LowPwrAllowRequestHW : Off LowPwrRequestSW : On ... Transmit avg optical power (Channel 1) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 2) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 3) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 4) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 5) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 6) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 7) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 8) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 9) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 10) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 11) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 12) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 13) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 14) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 15) : 0.0001 mW / -40.00 dBm Transmit avg optical power (Channel 16) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 1) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 2) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 3) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 4) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 5) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 6) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 7) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 8) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 9) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 10) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 11) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 12) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 13) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 14) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 15) : 0.0001 mW / -40.00 dBm Rcvr signal avg optical power (Channel 16) : 0.0001 mW / -40.00 dBm # ethtool --set-module swp11 power-mode-policy high # ethtool -m swp11 Identifier : 0x18 (QSFP-DD Double Density 8X Pluggable Transceiver (INF-8628)) ... Module State : 0x03 (ModuleReady) LowPwrAllowRequestHW : Off LowPwrRequestSW : Off ... Transmit avg optical power (Channel 1) : 1.3690 mW / 1.36 dBm Transmit avg optical power (Channel 2) : 1.3036 mW / 1.15 dBm Transmit avg optical power (Channel 3) : 1.3358 mW / 1.26 dBm Transmit avg optical power (Channel 4) : 1.3509 mW / 1.31 dBm Transmit avg optical power (Channel 5) : 1.3193 mW / 1.20 dBm Transmit avg optical power (Channel 6) : 1.3314 mW / 1.24 dBm Transmit avg optical power (Channel 7) : 1.3042 mW / 1.15 dBm Transmit avg optical power (Channel 8) : 1.3919 mW / 1.44 dBm Transmit avg optical power (Channel 9) : 1.3690 mW / 1.36 dBm Transmit avg optical power (Channel 10) : 1.3036 mW / 1.15 dBm Transmit avg optical power (Channel 11) : 1.3358 mW / 1.26 dBm Transmit avg optical power (Channel 12) : 1.3509 mW / 1.31 dBm Transmit avg optical power (Channel 13) : 1.3193 mW / 1.20 dBm Transmit avg optical power (Channel 14) : 1.3314 mW / 1.24 dBm Transmit avg optical power (Channel 15) : 1.3042 mW / 1.15 dBm Transmit avg optical power (Channel 16) : 1.3919 mW / 1.44 dBm Rcvr signal avg optical power (Channel 1) : 1.1299 mW / 0.53 dBm Rcvr signal avg optical power (Channel 2) : 1.1566 mW / 0.63 dBm Rcvr signal avg optical power (Channel 3) : 1.1484 mW / 0.60 dBm Rcvr signal avg optical power (Channel 4) : 1.1655 mW / 0.67 dBm Rcvr signal avg optical power (Channel 5) : 1.1751 mW / 0.70 dBm Rcvr signal avg optical power (Channel 6) : 1.1595 mW / 0.64 dBm Rcvr signal avg optical power (Channel 7) : 1.1158 mW / 0.48 dBm Rcvr signal avg optical power (Channel 8) : 1.1595 mW / 0.64 dBm Rcvr signal avg optical power (Channel 9) : 1.1299 mW / 0.53 dBm Rcvr signal avg optical power (Channel 10) : 1.1566 mW / 0.63 dBm Rcvr signal avg optical power (Channel 11) : 1.1484 mW / 0.60 dBm Rcvr signal avg optical power (Channel 12) : 1.1655 mW / 0.67 dBm Rcvr signal avg optical power (Channel 13) : 1.1751 mW / 0.70 dBm Rcvr signal avg optical power (Channel 14) : 1.1595 mW / 0.64 dBm Rcvr signal avg optical power (Channel 15) : 1.1158 mW / 0.48 dBm Rcvr signal avg optical power (Channel 16) : 1.1595 mW / 0.64 dBm In the above example, the LowPwrRequestHW signal is ignored and low power mode is controlled via software only. Signed-off-by: Ido Schimmel --- cmis.c | 15 +++++++++++++++ cmis.h | 5 +++++ 2 files changed, 20 insertions(+) diff --git a/cmis.c b/cmis.c index a32cc9f8b1f6..d0b62728e998 100644 --- a/cmis.c +++ b/cmis.c @@ -470,6 +470,20 @@ static void cmis_show_mod_fault_cause(const struct cmis_memory_map *map) } } +/* Print the current Module-Level Controls. Relevant documents: + * [1] CMIS Rev. 5, pag. 58, section 6.3.2.2, Table 6-12 + * [2] CMIS Rev. 5, pag. 111, section 8.2.6, Table 8-10 + */ +static void cmis_show_mod_lvl_controls(const struct cmis_memory_map *map) +{ + printf("\t%-41s : ", "LowPwrAllowRequestHW"); + printf("%s\n", ONOFF(map->lower_memory[CMIS_MODULE_CONTROL_OFFSET] & + CMIS_LOW_PWR_ALLOW_REQUEST_HW_MASK)); + printf("\t%-41s : ", "LowPwrRequestSW"); + printf("%s\n", ONOFF(map->lower_memory[CMIS_MODULE_CONTROL_OFFSET] & + CMIS_LOW_PWR_REQUEST_SW_MASK)); +} + static void cmis_parse_dom_power_type(const struct cmis_memory_map *map, struct sff_diags *sd) { @@ -845,6 +859,7 @@ static void cmis_show_all_common(const struct cmis_memory_map *map) cmis_show_rev_compliance(map); cmis_show_mod_state(map); cmis_show_mod_fault_cause(map); + cmis_show_mod_lvl_controls(map); cmis_show_dom(map); } diff --git a/cmis.h b/cmis.h index 2c67ad5640ab..46797081f13c 100644 --- a/cmis.h +++ b/cmis.h @@ -36,6 +36,11 @@ #define CMIS_CURR_TEMP_OFFSET 0x0E #define CMIS_CURR_VCC_OFFSET 0x10 +/* Module Global Controls (Page 0) */ +#define CMIS_MODULE_CONTROL_OFFSET 0x1A +#define CMIS_LOW_PWR_ALLOW_REQUEST_HW_MASK 0x40 +#define CMIS_LOW_PWR_REQUEST_SW_MASK 0x10 + /* Module Fault Information (Page 0) */ #define CMIS_MODULE_FAULT_OFFSET 0x29 #define CMIS_MODULE_FAULT_NO_FAULT 0x00 -- 2.35.1