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Date: Tue, 19 Jan 2021 15:31:20 +0530
From: George Cherian <george.cherian@...vell.com>
To: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-doc@...r.kernel.org>
CC: <kuba@...nel.org>, <davem@...emloft.net>, <sgoutham@...vell.com>,
<lcherian@...vell.com>, <gakula@...vell.com>,
<george.cherian@...vell.com>, <corbet@....net>
Subject: [PATCH net-next 2/2] docs: octeontx2: Add Documentation for NIX health reporters
Add devlink health reporter documentation for NIX block.
Signed-off-by: George Cherian <george.cherian@...vell.com>
---
.../ethernet/marvell/octeontx2.rst | 70 +++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst b/Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst
index 61e850460e18..dd5cd69467be 100644
--- a/Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst
+++ b/Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst
@@ -217,3 +217,73 @@ For example::
NPA_AF_ERR:
NPA Error Interrupt Reg : 4096
AQ Doorbell Error
+
+
+NIX Reporters
+-------------
+The NIX reporters are responsible for reporting and recovering the following group of errors:
+
+1. GENERAL events
+
+ - Receive mirror/multicast packet drop due to insufficient buffer.
+ - SMQ Flush operation.
+
+2. ERROR events
+
+ - Memory Fault due to WQE read/write from multicast/mirror buffer.
+ - Receive multicast/mirror replication list error.
+ - Receive packet on an unmapped PF.
+ - Fault due to NIX_AQ_INST_S read or NIX_AQ_RES_S write.
+ - AQ Doorbell Error.
+
+3. RAS events
+
+ - RAS Error Reporting for NIX Receive Multicast/Mirror Entry Structure.
+ - RAS Error Reporting for WQE/Packet Data read from Multicast/Mirror Buffer..
+ - RAS Error Reporting for NIX_AQ_INST_S/NIX_AQ_RES_S.
+
+4. RVU events
+
+ - Error due to unmapped slot.
+
+Sample Output::
+
+ ~# ./devlink health
+ pci/0002:01:00.0:
+ reporter hw_npa_intr
+ state healthy error 0 recover 0 grace_period 0 auto_recover true auto_dump true
+ reporter hw_npa_gen
+ state healthy error 0 recover 0 grace_period 0 auto_recover true auto_dump true
+ reporter hw_npa_err
+ state healthy error 0 recover 0 grace_period 0 auto_recover true auto_dump true
+ reporter hw_npa_ras
+ state healthy error 0 recover 0 grace_period 0 auto_recover true auto_dump true
+ reporter hw_nix_intr
+ state healthy error 1121 recover 1121 last_dump_date 2021-01-19 last_dump_time 05:42:26 grace_period 0 auto_recover true auto_dump true
+ reporter hw_nix_gen
+ state healthy error 949 recover 949 last_dump_date 2021-01-19 last_dump_time 05:42:43 grace_period 0 auto_recover true auto_dump true
+ reporter hw_nix_err
+ state healthy error 1147 recover 1147 last_dump_date 2021-01-19 last_dump_time 05:42:59 grace_period 0 auto_recover true auto_dump true
+ reporter hw_nix_ras
+ state healthy error 409 recover 409 last_dump_date 2021-01-19 last_dump_time 05:43:16 grace_period 0 auto_recover true auto_dump true
+
+Each reporter dumps the
+
+ - Error Type
+ - Error Register value
+ - Reason in words
+
+For example::
+
+ ~# devlink health dump show pci/0002:01:00.0 reporter hw_nix_intr
+ NIX_AF_RVU:
+ NIX RVU Interrupt Reg : 1
+ Unmap Slot Error
+ ~# devlink health dump show pci/0002:01:00.0 reporter hw_nix_gen
+ NIX_AF_GENERAL:
+ NIX General Interrupt Reg : 1
+ Rx multicast pkt drop
+ ~# devlink health dump show pci/0002:01:00.0 reporter hw_nix_err
+ NIX_AF_ERR:
+ NIX Error Interrupt Reg : 64
+ Rx on unmapped PF_FUNC
--
2.25.1
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