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authorJakub Kicinski <kuba@kernel.org>2021-01-08 13:28:00 -0800
committerJakub Kicinski <kuba@kernel.org>2021-01-08 13:28:00 -0800
commit833d22f2f922bbee6430e558417af060db6bbe9c (patch)
tree8d2d8824318d53d6d8e3b7bf5680f953a62c2f3b /Documentation/networking
parentMerge branch 'generic-zcopy_-functions' (diff)
parentMerge tag 'net-5.11-rc3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net (diff)
downloadlinux-dev-833d22f2f922bbee6430e558417af060db6bbe9c.tar.xz
linux-dev-833d22f2f922bbee6430e558417af060db6bbe9c.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Trivial conflict in CAN on file rename. Conflicts: drivers/net/can/m_can/tcan4x5x-core.c Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'Documentation/networking')
-rw-r--r--Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst62
-rw-r--r--Documentation/networking/netdevices.rst4
2 files changed, 38 insertions, 28 deletions
diff --git a/Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst b/Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst
index d3fcf536d14e..61e850460e18 100644
--- a/Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst
+++ b/Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst
@@ -164,46 +164,56 @@ Devlink health reporters
NPA Reporters
-------------
-The NPA reporters are responsible for reporting and recovering the following group of errors
+The NPA reporters are responsible for reporting and recovering the following group of errors:
+
1. GENERAL events
+
- Error due to operation of unmapped PF.
- Error due to disabled alloc/free for other HW blocks (NIX, SSO, TIM, DPI and AURA).
+
2. ERROR events
+
- Fault due to NPA_AQ_INST_S read or NPA_AQ_RES_S write.
- AQ Doorbell Error.
+
3. RAS events
+
- RAS Error Reporting for NPA_AQ_INST_S/NPA_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 2872 recover 2872 last_dump_date 2020-12-10 last_dump_time 09:39:09 grace_period 0 auto_recover true auto_dump true
- reporter hw_npa_gen
- state healthy error 2872 recover 2872 last_dump_date 2020-12-11 last_dump_time 04:43:04 grace_period 0 auto_recover true auto_dump true
- reporter hw_npa_err
- state healthy error 2871 recover 2871 last_dump_date 2020-12-10 last_dump_time 09:39:17 grace_period 0 auto_recover true auto_dump true
- reporter hw_npa_ras
- state healthy error 0 recover 0 last_dump_date 2020-12-10 last_dump_time 09:32:40 grace_period 0 auto_recover true auto_dump true
+Sample Output::
+
+ ~# devlink health
+ pci/0002:01:00.0:
+ reporter hw_npa_intr
+ state healthy error 2872 recover 2872 last_dump_date 2020-12-10 last_dump_time 09:39:09 grace_period 0 auto_recover true auto_dump true
+ reporter hw_npa_gen
+ state healthy error 2872 recover 2872 last_dump_date 2020-12-11 last_dump_time 04:43:04 grace_period 0 auto_recover true auto_dump true
+ reporter hw_npa_err
+ state healthy error 2871 recover 2871 last_dump_date 2020-12-10 last_dump_time 09:39:17 grace_period 0 auto_recover true auto_dump true
+ reporter hw_npa_ras
+ state healthy error 0 recover 0 last_dump_date 2020-12-10 last_dump_time 09:32:40 grace_period 0 auto_recover true auto_dump true
Each reporter dumps the
+
- Error Type
- Error Register value
- Reason in words
-For eg:
-~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_gen
- NPA_AF_GENERAL:
- NPA General Interrupt Reg : 1
- NIX0: free disabled RX
-~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_intr
- NPA_AF_RVU:
- NPA RVU Interrupt Reg : 1
- Unmap Slot Error
-~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_err
- NPA_AF_ERR:
- NPA Error Interrupt Reg : 4096
- AQ Doorbell Error
+For example::
+
+ ~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_gen
+ NPA_AF_GENERAL:
+ NPA General Interrupt Reg : 1
+ NIX0: free disabled RX
+ ~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_intr
+ NPA_AF_RVU:
+ NPA RVU Interrupt Reg : 1
+ Unmap Slot Error
+ ~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_err
+ NPA_AF_ERR:
+ NPA Error Interrupt Reg : 4096
+ AQ Doorbell Error
diff --git a/Documentation/networking/netdevices.rst b/Documentation/networking/netdevices.rst
index 5a85fcc80c76..e65665c5ab50 100644
--- a/Documentation/networking/netdevices.rst
+++ b/Documentation/networking/netdevices.rst
@@ -64,8 +64,8 @@ ndo_do_ioctl:
Context: process
ndo_get_stats:
- Synchronization: dev_base_lock rwlock.
- Context: nominally process, but don't sleep inside an rwlock
+ Synchronization: rtnl_lock() semaphore, dev_base_lock rwlock, or RCU.
+ Context: atomic (can't sleep under rwlock or RCU)
ndo_start_xmit:
Synchronization: __netif_tx_lock spinlock.