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