Cited commit mistakenly removed the trap group for externally routed
packets (e.g., via the management interface) and grouped locally routed
and externally routed packet traps under the same group, thereby
subjecting them to the same policer.
This can result in problems, for example, when FRR is restarted and
suddenly all transient traffic is trapped to the CPU because of a
default route through the management interface. Locally routed packets
required to re-establish a BGP connection will never reach the CPU and
the routing tables will not be re-populated.
Fix this by using a different trap group for externally routed packets.
Fixes: 8110668ecd ("mlxsw: spectrum_trap: Register layer 3 control traps")
Reported-by: Alex Veber <alexve@mellanox.com>
Tested-by: Alex Veber <alexve@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A new file snuck into the tree after all existing documentation
was converted to RST. Convert sja1105's devlink info and move
it where the rest of the drivers are documented.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add packet traps for packets that are sampled / trapped by ACLs, so that
capable drivers could register them with devlink. Add documentation for
every added packet trap and packet trap group.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add layer 3 control packet traps such as ARP and DHCP, so that capable
device drivers could register them with devlink. Add documentation for
every added packet trap and packet trap group.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add layer 2 control packet traps such as STP and IGMP query, so that
capable device drivers could register them with devlink. Add
documentation for every added packet trap and packet trap group.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This type is used for traps that trap control packets such as ARP
request and IGMP query to the CPU.
Do not report such packets to the kernel's drop monitor as they were not
dropped by the device no encountered an exception during forwarding.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The action is used by control traps such as IGMP query. The packet is
flooded by the device, but also trapped to the CPU in order for the
software bridge to mark the receiving port as a multicast router port.
Such packets are marked with 'skb->offload_fwd_mark = 1' in order to
prevent the software bridge from flooding them again.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Packets that hit exceptions during layer 3 forwarding must be trapped to
the CPU for the control plane to function properly. Create a dedicated
group for them, so that user space could choose to assign a different
policer for them.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The flash memory for the ice hardware contains a block of information
used for link management called the Netlist module.
As this essentially represents another section of firmware, add its
version information to the output of the driver's .info_get handler.
This includes both a version and the first few bytes of a hash of the
module contents.
fw.netlist -> the version information extracted from the netlist module
fw.netlist.build-> first 4 bytes of the hash of the contents, similar
to fw.mgmt.build
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
In past discussions Jiri explained snapshot ids are cross-region.
Explain this in the docs.
v3: new patch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently users have to choose a free snapshot id before
calling DEVLINK_CMD_REGION_NEW. This is potentially racy
and inconvenient.
Make the DEVLINK_ATTR_REGION_SNAPSHOT_ID optional and try
to allocate id automatically. Send a message back to the
caller with the snapshot info.
Example use:
$ devlink region new netdevsim/netdevsim1/dummy
netdevsim/netdevsim1/dummy: snapshot 1
$ id=$(devlink -j region new netdevsim/netdevsim1/dummy | \
jq '.[][][][]')
$ devlink region dump netdevsim/netdevsim1/dummy snapshot $id
[...]
$ devlink region del netdevsim/netdevsim1/dummy snapshot $id
v4:
- inline the notification code
v3:
- send the notification only once snapshot creation completed.
v2:
- don't wrap the line containing extack;
- add a few sentences to the docs.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The documentation for the ice driver around "fw.app" has a spelling
mistake in variation. Additionally, the language of "shall have a unique
name" sounds like a requirement. Reword this to read more like
a description or property.
Reported-by: Benjamin Fisher <benjamin.l.fisher@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
At 'make htmldocs' the following warning is thrown:
Documentation/networking/devlink/devlink-trap.rst:302:
WARNING: undefined label: generic-packet-trap-groups
Fixes the warning by setting the label to the specified header,
within the same document.
Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Extend devlink-trap documentation with information about packet trap
policers.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The devlink-region.rst and ice-region.rst documentation files wrapped
some lines within shell code blocks due to being longer than 80 lines.
It was pointed out during review that wrapping these lines shouldn't be
done. Fix these two rST files and remove the line wrapping on these
shell command examples.
Reported-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix macro names to report fw.mgmt and fw.ncsi versions to match the
devlink documentation.
Example display after fixes:
$ devlink dev info pci/0000:af:00.0
pci/0000:af:00.0:
driver bnxt_en
serial_number B0-26-28-FF-FE-25-84-20
versions:
fixed:
board.id BCM957454A4540
asic.id C454
asic.rev 1
running:
fw 216.1.154.0
fw.psid 0.0.0
fw.mgmt 216.1.146.0
fw.mgmt.api 1.10.1
fw.ncsi 864.0.44.0
fw.roce 216.1.16.0
Fixes: 9599e036b1 ("bnxt_en: Add support for devlink info command")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Display the minimum version of firmware interface spec supported
between driver and firmware. Also update bnxt.rst documentation file.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a devlink region for exposing the device's Non Volatime Memory flash
contents.
Support the recently added .snapshot operation, enabling userspace to
request a snapshot of the NVM contents via DEVLINK_CMD_REGION_NEW.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement support for the DEVLINK_CMD_REGION_NEW command for creating
snapshots. This new command parallels the existing
DEVLINK_CMD_REGION_DEL.
In order for DEVLINK_CMD_REGION_NEW to work for a region, the new
".snapshot" operation must be implemented in the region's ops structure.
The desired snapshot id must be provided. This helps avoid confusion on
the purpose of DEVLINK_CMD_REGION_NEW, and keeps the API simpler.
The requested id will be inserted into the xarray tracking the number of
snapshots using each id. If this id is already used by another snapshot
on any region, an error will be returned.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We are having multiple review cycles with all vendors trying
to implement devlink-info. Let's expand the documentation with
more information about what's implemented and motivation behind
this interface in an attempt to make the implementations easier.
Describe what each info section is supposed to contain, and make
some references to other HW interfaces (PCI caps).
Document how firmware management is expected to look, to make
it clear how devlink-info and devlink-flash work in concert.
Name some future work.
v2: - improve wording
v3: - improve wording
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The devlink .info_get callback allows the driver to report detailed
version information. The following devlink versions are reported with
this initial implementation:
"fw.mgmt" -> The version of the firmware that controls PHY, link, etc
"fw.mgmt.api" -> API version of interface exposed over the AdminQ
"fw.mgmt.build" -> Unique build id of the source for the management fw
"fw.undi" -> Version of the Option ROM containing the UEFI driver
"fw.psid.api" -> Version of the NVM image format.
"fw.bundle_id" -> Unique identifier for the combined flash image.
"fw.app.name" -> The name of the active DDP package.
"fw.app" -> The version of the active DDP package.
With this, devlink dev info can report at least as much information as
is reported by ETHTOOL_GDRVINFO.
Compare the output from ethtool vs from devlink:
$ ethtool -i ens785s0
driver: ice
version: 0.8.1-k
firmware-version: 0.80 0x80002ec0 1.2581.0
expansion-rom-version:
bus-info: 0000:3b:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
$ devlink dev info pci/0000:3b:00.0
pci/0000:3b:00.0:
driver ice
serial number 00-01-ab-ff-ff-ca-05-68
versions:
running:
fw.mgmt 2.1.7
fw.mgmt.api 1.5
fw.mgmt.build 0x305d955f
fw.undi 1.2581.0
fw.psid.api 0.80
fw.bundle_id 0x80002ec0
fw.app.name ICE OS Default Package
fw.app 1.3.1.0
More pieces of information can be displayed, each version is kept
separate instead of munged together, and each version has an identifier
which comes with associated documentation.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Ido Schimmel
Jakub Kicinski
Jacob Keller
David S. Miller
Lothar Rubusch
Vasundhara Volam