Commit Graph

203 Commits

Author SHA1 Message Date
David Ahern 50b668bdbf Merge branch 'main' into next
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-11-04 09:45:31 -06:00
Moshe Shemesh 047e9ae516 devlink: Fix cmd_dev_param_set() to check configuration mode
This patch is fixing a bug, when param set user command includes
configuration mode which is not supported, the tool may not respond
with error if the requested value is 0. In such case
cmd_dev_param_set_cb() won't find the requested configuration mode and
returns ctx->value as initialized (equal 0). Then cmd_dev_param_set()
may find that requested value equals current value and returns success.

Fixing the bug by adding a flag cmode_found which is set only if
cmd_dev_param_set_cb() finds the requested configuration mode.

Fixes: 13925ae9eb ("devlink: Add param command support")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2021-11-02 08:34:33 -07:00
Jacob Keller b90174354d devlink: print maximum number of snapshots if available
Recently the kernel gained ability to report the maximum number of
snapshots a region can have. Print this value out if it was reported.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-10-05 08:31:30 -06:00
Parav Pandit 355c49ffa5 devlink: Show port state values in man page and in the help command
Port function state can have either of the two values - active or
inactive. Update the documentation and help command for these two
values to tell user about it.

With the introduction of state, hw_addr and state are optional.
Hence mark them as optional in man page that also aligns with the help
command output.

Fixes: bdfb9f1bd6 ("devlink: Support set of port function state")
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2021-08-11 15:02:30 -07:00
Jacob Keller 954a0077c8 devlink: fix infinite loop on flash update for drivers without status
When processing device flash update, cmd_dev_flash function waits until
the flash process has completed. This requires the following two
conditions to both be true:

a) we've received an exit status from the child process
b) we've received the DEVLINK_CMD_FLASH_UPDATE_END *or*
   we haven't received any status notifications from the driver.

The original devlink flash status monitoring code in 9b13cddfe2
("devlink: implement flash status monitoring") was written assuming that
a driver will either send no status updates, or it will send at least
one DEVLINK_CMD_FLASH_UPDATE_STATUS before DEVLINK_CMD_FLASH_UPDATE_END.

Newer versions of the kernel since commit 52cc5f3a166a ("devlink: move flash
end and begin to core devlink") in v5.10 moved handling of the
DEVLINK_CMD_FLASH_UPDATE_END into the core stack, and will send this
regardless of whether or not the driver sends any of its own status
notifications.

The handling of DEVLINK_CMD_FLASH_UPDATE_END in cmd_dev_flash_status_cb
has an additional condition that it must not be the first message.
Otherwise, it falls back to treating it like
a DEVLINK_CMD_FLASH_UPDATE_STATUS.

This is wrong because it can lead to an infinite loop if a driver does
not send any status updates.

In this case, the kernel will send DEVLINK_CMD_FLASH_UPDATE_END without
any DEVLINK_CMD_FLASH_UPDATE_STATUS. The devlink application will see
that ctx->not_first is false, and will treat this like any other status
message. Thus, ctx->not_first will be set to 1.

The loop condition to exit flash update will thus never be true, since
we will wait forever, because ctx->not_first is true, and
ctx->received_end is false.

This leads to the application appearing to process the flash update, but
it will never exit.

Fix this by simply always treating DEVLINK_CMD_FLASH_UPDATE_END the same
regardless of whether its the first message or not.

This is obviously the correct thing to do: once we've received the
DEVLINK_CMD_FLASH_UPDATE_END the flash update must be finished. For new
kernels this is always true, because we send this message in the core
stack after the driver flash update routine finishes.

For older kernels, some drivers may not have sent any
DEVLINK_CMD_FLASH_UPDATE_STATUS or DEVLINK_CMD_FLASH_UPDATE_END. This is
handled by the while loop conditional that exits if we get a return
value from the child process without having received any status
notifications.

An argument could be made that we should exit immediately when we get
either the DEVLINK_CMD_FLASH_UPDATE_END or an exit code from the child
process. However, at a minimum it makes no sense to ever process
DEVLINK_CMD_FLASH_UPDATE_END as if it were a DEVLINK_CMD_FLASH_UPDATE_STATUS.

This is easy to test as it is triggered by the selftests for the
netdevsim driver, which has a test case for both with and without status
notifications.

Fixes: 9b13cddfe2 ("devlink: implement flash status monitoring")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2021-08-10 19:54:39 -07:00
David Ahern 02c06ffc13 Merge branch 'main' into next
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-07-01 14:29:42 +00:00
Ben Hutchings 33cf9306c8 devlink: Fix printf() type mismatches on 32-bit architectures
devlink currently uses "%lu" to format values of type uint64_t,
but on 32-bit architectures uint64_t is defined as unsigned
long long and this does not work correctly.

Fix this by using the standard macro PRIu64 instead.

Signed-off-by: Ben Hutchings <ben.hutchings@mind.be>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2021-06-29 11:10:14 -07:00
Roi Dayan 6f15c21719 devlink: Fix link errors on some systems
On some systems we fail to link because of missing math lib.
add -lm to devlink.

    LINK     devlink
../lib/libutil.a(utils_math.o): In function `get_rate':
utils_math.c:(.text+0xcc): undefined reference to `floor'
../lib/libutil.a(utils_math.o): In function `get_size':
utils_math.c:(.text+0x384): undefined reference to `floor'
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:16: devlink] Error 1
make: *** [Makefile:64: all] Error 2

Fixes: 6c70aca76e ("devlink: Add port func rate support")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2021-06-26 14:57:27 -07:00
Dmytro Linkin dedf895184 devlink: Add ISO/IEC switch
Add -i/--iec switch to print rate values using binary prefixes.
Update devlink(8) and devlink-rate(8) pages.

Signed-off-by: Dmytro Linkin <dlinkin@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-06-12 04:38:13 +00:00
Dmytro Linkin 6c70aca76e devlink: Add port func rate support
Implement user commands to manage devlink port func rate objects.
List all rate commands:

    $ devlink port func rate help

or just

    $ devlink port func rate

To list all OR particular rate object:

    $ devlink port func rate show
    pci/0000:03:00.0/some_group: type node
    pci/0000:03:00.0/0: type leaf
    pci/0000:03:00.0/1: type leaf

    $ devlink prot func rate show pci/0000:03:00.0/1
    pci/0000:03:00.0/0: type leaf

    $ devlink prot func rate show pci/0000:03:00.0/some_group
    pci/0000:03:00.0/some_group: type node

Rate object of type "leaf" created by it's driver where name is the name
of corresponding devlink port. Rate object of type "node" represents
rate group created by the user using commands:

    $ devlink port func rate add pci/0000:03:00.0/some_group

or with defining tx rate limits

    $ devlink port func rate add pci/0000:03:00.0/some_group \
        tx_shara 10kbit tx_max 100mbit

NOTE: node name cannot be a decimal value because it conflicts with
devlink port indexes.

To delete node object:

    $ devlink port func rate del pci/0000:03:00.0/some_group

Set rate limits of existing rate object:

    $ devlink prot func rate set pci/0000:03:00.0/0 \
        tx_share 5MBps tx_max 25GBps

    $ devlink prot func rate set pci/0000:03:00.0/some_group \
        tx_share 0

Both SET and ADD commands accept any units of rates defined in IEC
60027-2 standard.

NOTE: rate value 0 means that rate is unlimited. Such value is also
ommited in show command output.

NOTE: In SHOW command output rate values will be printed with suffixes
as well, but in JSON output they are always units of Bps.

Set or unset parent of existing rate object:

    $ devlink prot func rate set pci/0000:03:00.0/0 parent some_group

    $ devlink port func rate set pci/0000:03:00.0/0 noparent

NOTE: Setting parent to empty ("") name due to kernel logic means unset
parent and shouldn't be used to avoid unexpected parent unsets.

Signed-off-by: Dmytro Linkin <dlinkin@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-06-12 04:38:06 +00:00
Dmytro Linkin 95339955c5 devlink: Add helper function to validate object handler
Every handler argument validated in two steps, first of which, form
checking, expects identifier is few words separated by slashes.
For device and region handlers just checked if identifier have expected
number of slashes.
Add generic function to do that and make code cleaner & consistent.

Signed-off-by: Dmytro Linkin <dlinkin@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-06-12 04:37:21 +00:00
Parav Pandit fbd4b581cb devlink: Add optional controller user input
A user optionally provides the external controller number when user
wants to create devlink port for the external controller.

An example on eswitch system:
$ devlink dev eswitch set pci/0033:01:00.0 mode switchdev

$ devlink port show
pci/0033:01:00.0/196607: type eth netdev enP51p1s0f0np0 flavour physical port 0 splittable false
pci/0033:01:00.0/131072: type eth netdev eth0 flavour pcipf controller 1 pfnum 0 external true splittable false
  function:
    hw_addr 00:00:00:00:00:00

$ devlink port add pci/0033:01:00.0 flavour pcisf pfnum 0 sfnum 77 controller 1
pci/0033:01:00.0/163840: type eth netdev eth1 flavour pcisf controller 1 pfnum 0 sfnum 77 external true splittable false
  function:
    hw_addr 00:00:00:00:00:00 state inactive opstate detached

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-06-11 02:28:49 +00:00
Stephen Hemminger 2363bc99f9 Merge git://git.kernel.org/pub/scm/network/iproute2/iproute2-next
Required manual fix of devlink/devlink.c

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2021-04-27 19:39:39 -07:00
Andrea Claudi 6b8fa2ea2d devlink: always check strslashrsplit() return value
strslashrsplit() return value is not checked in __dl_argv_handle(),
despite the fact that it can return EINVAL.

This commit fix it and make __dl_argv_handle() return error if
strslashrsplit() return an error code.

Fixes: 2f85a9c535 ("devlink: allow to parse both devlink and port handle in the same time")
Signed-off-by: Andrea Claudi <aclaudi@redhat.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2021-04-13 19:16:55 -07:00
Parav Pandit c54e7bd605 devlink: Add error print when unknown values specified
When user specifies either unknown flavour or unknown state during
devlink port commands, return appropriate error message.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-03-03 04:00:16 +00:00
Parav Pandit 62ff25e51b devlink: Use generic socket helpers from library
User generic socket helpers from library for netlink generic socket
access.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-03-03 04:00:10 +00:00
Parav Pandit 03662000e4 devlink: Use library provided string processing APIs
User helper routines provided by library for counting slash and
splitting string on delimiter.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-03-03 03:59:58 +00:00
Oleksandr Mazur c946f5d3e4 devlink: add support for port params get/set
Add implementation for the port parameters
getting/setting.
Add bash completion for port param.
Add man description for port param.

Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-02-11 09:21:24 -07:00
Parav Pandit bdfb9f1bd6 devlink: Support set of port function state
Support set operation of the devlink port function state.

Example of a PCI SF port function which supports the state:

$ devlink dev eswitch set pci/0000:06:00.0 mode switchdev

$ devlink port show
pci/0000:06:00.0/65535: type eth netdev ens2f0np0 flavour physical port 0 splittable false

$ devlink port add pci/0000:06:00.0 flavour pcisf pfnum 0 sfnum 88
pci/0000:08:00.0/32768: type eth netdev eth6 flavour pcisf controller 0 pfnum 0 sfnum 88 splittable false
  function:
    hw_addr 00:00:00:00:00:00 state inactive opstate detached

$ devlink port show pci/0000:06:00.0/32768
pci/0000:06:00.0/32768: type eth netdev ens2f0npf0sf88 flavour pcisf controller 0 pfnum 0 sfnum 88 splittable false
  function:
    hw_addr 00:00:00:00:00:00 state inactive opstate detached

$ devlink port function set pci/0000:06:00.0/32768 hw_addr 00:00:00:00:88:88 state active

$ devlink port show pci/0000:06:00.0/32768 -jp
{
    "port": {
        "pci/0000:06:00.0/32768": {
            "type": "eth",
            "netdev": "ens2f0npf0sf88",
            "flavour": "pcisf",
            "controller": 0,
            "pfnum": 0,
            "sfnum": 88,
            "splittable": false,
            "function": {
                "hw_addr": "00:00:00:00:88:88",
                "state": "active",
                "opstate": "attached"
            }
        }
    }
}

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-02-02 02:06:48 +00:00
Parav Pandit 249465d3bf devlink: Support get port function state
Print port function state and operational state whenever reported by
kernel.

Example of a PCI SF port function which supports the state:

$ devlink dev eswitch set pci/0000:06:00.0 mode switchdev

$ devlink port show
pci/0000:06:00.0/65535: type eth netdev ens2f0np0 flavour physical port 0 splittable false

$ devlink port add pci/0000:06:00.0 flavour pcisf pfnum 0 sfnum 88
pci/0000:08:00.0/32768: type eth netdev eth6 flavour pcisf controller 0 pfnum 0 sfnum 88 splittable false
  function:
    hw_addr 00:00:00:00:00:00 state inactive opstate detached

$ devlink port show pci/0000:06:00.0/32768
pci/0000:06:00.0/32768: type eth netdev ens2f0npf0sf88 flavour pcisf controller 0 pfnum 0 sfnum 88 splittable false
  function:
    hw_addr 00:00:00:00:00:00 state inactive opstate detached

$ devlink port function set pci/0000:06:00.0/32768 hw_addr 00:00:00:00:88:88

$ devlink port show pci/0000:06:00.0/32768 -jp
{
    "port": {
        "pci/0000:06:00.0/32768": {
            "type": "eth",
            "netdev": "ens2f0npf0sf88",
            "flavour": "pcisf",
            "controller": 0,
            "pfnum": 0,
            "sfnum": 88,
            "splittable": false,
            "function": {
                "hw_addr": "00:00:00:00:88:88",
                "state": "inactive",
                "opstate": "detached"
            }
        }
    }
}

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-02-02 02:06:41 +00:00
Parav Pandit 331bf89ad0 devlink: Supporting add and delete of devlink port
Enable user to add and delete the devlink port.

Examples for adding and deleting one SF port:

Examples of add, show and delete commands:
$ devlink dev eswitch set pci/0000:06:00.0 mode switchdev

$ devlink port show
pci/0000:06:00.0/65535: type eth netdev ens2f0np0 flavour physical port 0 splittable false

Add devlink port of flavour 'pcipf' for PF number 0 SF number 88:

$ devlink port add pci/0000:06:00.0 flavour pcisf pfnum 0 sfnum 88
pci/0000:06:00.0/32768: type eth netdev eth6 flavour pcisf controller 0 pfnum 0 sfnum 88 splittable false
  function:
    hw_addr 00:00:00:00:00:00 state inactive opstate detached

Delete newly added devlink port
$ devlink port del pci/0000:06:00.0/32768

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-02-02 02:06:36 +00:00
Parav Pandit 836a1365b7 devlink: Introduce PCI SF port flavour and attribute
Introduce PCI SF port flavour and port attributes such as PF
number and SF number.

$ devlink dev eswitch set pci/0000:06:00.0 mode switchdev

$ devlink port show
pci/0000:06:00.0/65535: type eth netdev ens2f0np0 flavour physical port 0 splittable false

$ devlink port add pci/0000:06:00.0 flavour pcisf pfnum 0 sfnum 88
pci/0000:08:00.0/32768: type eth netdev eth6 flavour pcisf controller 0 pfnum 0 sfnum 88 splittable false
  function:
    hw_addr 00:00:00:00:00:00 state inactive opstate detached

$ devlink port show pci/0000:06:00.0/32768
pci/0000:06:00.0/32768: type eth netdev ens2f0npf0sf88 flavour pcisf controller 0 pfnum 0 sfnum 88 splittable false
  function:
    hw_addr 00:00:00:00:00:00 state inactive opstate detached

$ devlink port function set pci/0000:06:00.0/32768 hw_addr 00:00:00:00:88:88 state active

$ devlink port show pci/0000:06:00.0/32768 -jp
{
    "port": {
        "pci/0000:06:00.0/32768": {
            "type": "eth",
            "netdev": "ens2f0npf0sf88",
            "flavour": "pcisf",
            "controller": 0,
            "pfnum": 0,
            "sfnum": 88,
            "splittable": false,
            "function": {
                "hw_addr": "00:00:00:00:88:88",
                "state": "active",
                "opstate": "attached"
            }
        }
    }
}

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-02-02 02:06:30 +00:00
Parav Pandit a9642c5fa6 devlink: Introduce and use string to number mapper
Instead of using static mapping in code, introduce a helper routine to
map a value to string.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2021-02-02 02:01:53 +00:00
David Ahern c01dec8475 Merge branch 'main' into next
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-12-16 04:06:06 +00:00
Andrea Claudi ec1346acbe devlink: fix memory leak in cmd_dev_flash()
nlg_ntf is dinamically allocated in mnlg_socket_open(), and is freed on
the out: return path. However, some error paths do not free it,
resulting in memory leak.

This commit fix this using mnlg_socket_close(), and reporting the
correct error number when required.

Fixes: 9b13cddfe2 ("devlink: implement flash status monitoring")
Signed-off-by: Andrea Claudi <aclaudi@redhat.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-12-14 09:23:24 -08:00
Moshe Shemesh c2d7c45c32 devlink: Add reload stats to dev show
Show reload statistics through devlink dev show using devlink stats
flag. The reload statistics show the history per reload action type and
limit. Add remote reload statistics to show the history of actions
performed due devlink reload commands initiated by remote host.

Output examples:
$ devlink dev show -s
pci/0000:82:00.0:
  stats:
      reload:
          driver_reinit:
            unspecified 2
          fw_activate:
            unspecified 1 no_reset 0
      remote_reload:
          driver_reinit:
            unspecified 0
          fw_activate:
            unspecified 0 no_reset 0
pci/0000:82:00.1:
  stats:
      reload:
          driver_reinit:
            unspecified 0
          fw_activate:
            unspecified 0 no_reset 0
      remote_reload:
          driver_reinit:
            unspecified 1
          fw_activate:
            unspecified 1 no_reset 0

$ devlink dev show -s -jp
{
    "dev": {
        "pci/0000:82:00.0": {
            "stats": {
                "reload": {
                    "driver_reinit": {
                        "unspecified": 2
                    },
                    "fw_activate": {
                        "unspecified": 1,
                        "no_reset": 0
                    }
                },
                "remote_reload": {
                    "driver_reinit": {
                        "unspecified": 0
                    },
                    "fw_activate": {
                        "unspecified": 0,
                        "no_reset": 0
                    }
                }
            }
        },
        "pci/0000:82:00.1": {
            "stats": {
                "reload": {
                    "driver_reinit": {
                        "unspecified": 0
                    },
                    "fw_activate": {
                        "unspecified": 0,
                        "no_reset": 0
                    }
                },
                "remote_reload": {
                    "driver_reinit": {
                        "unspecified": 1
                    },
                    "fw_activate": {
                        "unspecified": 1,
                        "no_reset": 0
                    }
                }
            }
        }
    }
}

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-12-09 02:42:15 +00:00
Moshe Shemesh 0c0023ad71 devlink: Add pr_out_dev() helper function
Add pr_out_dev() helper function and use it both by cmd_dev_show_cb()
and by cmd_mon_show_cb().

Dev stats will be added on the next patch to dev context, so
cmd_mon_show_cb() should print the whole dev context and not just dev
handle.

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-12-09 02:42:09 +00:00
Moshe Shemesh f28c910274 devlink: Add devlink reload action and limit options
Add reload action and reload limit to devlink reload command to enable
the user to select the reload action required and constrains limits on
these actions that he may want to ensure.

The following reload actions are supported:
  driver_reinit: driver entities re-initialization, applying
                 devlink-param and devlink-resource values.
  fw_activate: firmware activate.

The uAPI is backward compatible, if the reload action option is omitted
from the reload command, the driver reinit action will be used.
Note that when required to do firmware activation some drivers may need
to reload the driver. On the other hand some drivers may need to reset
the firmware to reinitialize the driver entities. Therefore, the devlink
reload command returns the actions which were actually performed.

By default reload actions are not limited and driver implementation may
include reset or downtime as needed to perform the actions. However, if
reload limit is selected, the driver should perform only if it can do it
while keeping the limit constraints.

Reload limit added:
  no_reset: No reset allowed, no down time allowed, no link flap and no
            configuration is lost.

Command examples:
$devlink dev reload pci/0000:82:00.0 action driver_reinit
reload_actions_performed:
  driver_reinit

$devlink dev reload pci/0000:82:00.0 action fw_activate
reload_actions_performed:
  driver_reinit fw_activate

devlink dev reload pci/0000:82:00.1 action driver_reinit -jp
{
    "reload": {
        "reload_actions_performed": [ "driver_reinit" ]
    }
}

devlink dev reload pci/0000:82:00.0 action fw_activate -jp
{
    "reload": {
        "reload_actions_performed": [ "driver_reinit","fw_activate" ]
    }
}

Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-12-09 02:40:00 +00:00
David Ahern 8065d28218 Merge branch 'main' into next
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-12-04 16:25:12 +00:00
Stephen Hemminger f817699939 devlink: fix uninitialized warning
GCC-10 complains about uninitialized variable.

devlink.c: In function ‘cmd_dev’:
devlink.c:2803:12: warning: ‘val_u32’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 2803 |    val_u16 = val_u32;
      |    ~~~~~~~~^~~~~~~~~
devlink.c:2747:11: note: ‘val_u32’ was declared here
 2747 |  uint32_t val_u32;
      |           ^~~~~~~

This is a false positive because it can't figure out the control flow
when the parse returns error.

Fixes: 2557dca2b0 ("devlink: Add string to uint{8,16,32} conversion for generic parameters")
Cc: shalomt@mellanox.com
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-11-29 16:19:36 -08:00
Petr Machata 6dd778e837 lib: Extract from devlink/mnlg a helper, mnlu_socket_recv_run()
Receiving a message in libmnl is a somewhat involved operation. Devlink's
mnlg library has an implementation that is going to be handy for other
tools as well. Extract it into a new helper.

Signed-off-by: Petr Machata <me@pmachata.org>
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-11-13 19:43:15 -07:00
Petr Machata dd78dfc7be lib: Extract from devlink/mnlg a helper, mnlu_msg_prepare()
Allocation of a new netlink message with the two usual headers is reusable
with other netlink netlink message types. Extract it into a helper,
mnlu_msg_prepare(). Take the second header as an argument, instead of
passing in parameters to initialize it, and copy it in.

Signed-off-by: Petr Machata <me@pmachata.org>
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-11-13 19:43:15 -07:00
Petr Machata 72858c7b77 lib: Extract from devlink/mnlg a helper, mnlu_socket_open()
This little dance of mnl_socket_open(), option setting, and bind, is the
same regardless of tool. Extract into a new module that should hold helpers
for working with libmnl, mnl_util.c.

Signed-off-by: Petr Machata <me@pmachata.org>
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-11-13 19:43:15 -07:00
Petr Machata 1d9a81b8c9 Unify batch processing across tools
The code for handling batches is largely the same across iproute2 tools.
Extract a helper to handle the batch, and adjust the tools to dispatch to
this helper. Sandwitch the invocation between prologue / epilogue code
specific for each tool.

Signed-off-by: Petr Machata <me@pmachata.org>
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-11-13 19:43:15 -07:00
Jacob Keller 3342688a66 devlink: display elapsed time during flash update
For some devices, updating the flash can take significant time during
operations where no status can meaningfully be reported. This can be
somewhat confusing to a user who sees devlink appear to hang on the
terminal waiting for the device to update.

Recent changes to the kernel interface allow such long running commands
to provide a timeout value indicating some upper bound on how long the
relevant action could take.

Provide a ticking counter of the time elapsed since the previous status
message in order to make it clear that the program is not simply stuck.

Display this message whenever the status message from the kernel
indicates a timeout value. Additionally also display the message if
we've received no status for more than couple of seconds. If we elapse
more than the timeout provided by the status message, replace the
timeout display with "timeout reached".

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-10-17 09:30:06 -06:00
Jiri Pirko 8dc1db80e4 devlink: Add health reporter test command support
Add health reporter test command and allow user to trigger a test event.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-10-07 00:08:53 -06:00
Jacob Keller 012164718b devlink: support setting the overwrite mask attribute
The recently added DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK allows
userspace to indicate how a device should handle subsections of a flash
component when updating. For example, a flash component might contain
vital data such as PCIe serial number or configuration fields such as
settings that control device bootup.

The overwrite mask allows specifying whether the device should overwrite
these subsections when updating from the provided image. If nothing is
specified, then the update is expected to preserve all vital fields and
configuration.

Add support for specifying the overwrite mask using the new "overwrite"
option to the flash command line.

By specifying "overwrite identifiers", the user request that the flash
update should overwrite any settings in the updated flash component with
settings from the provided flash image

  $devlink dev flash pci/0000:af:00.0 file flash_image.bin overwrite identifiers

By specifying "overwrite settings" the user requests that the flash update
should overwrite any settings in the updated flash component with setting
values from the provided flash image.

  $devlink dev flash pci/0000:af:00.0 file flash_image.bin overwrite settings

These options may be combined, in which case both subsections will be sent
in the overwrite mask, resulting in a request to overwrite all settings and
identifiers stored in the updated flash components.

  $devlink dev flash pci/0000:af:00.0 file flash_image.bin overwrite settings overwrite identifiers

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-10-07 00:02:16 -06:00
Parav Pandit 748cbad33b devlink: Show controller number of a devlink port
Show the controller number of the devlink port whenever kernel reports
it.

Example of a PCI VF port for an external controller number 1:

$ devlink port show pci/0000:06:00.0/2
pci/0000:06:00.0/2: type eth netdev ens2f0c1pf0vf1 flavour pcivf controller 1 pfnum 0 vfnum 1 external true splittable false
  function:
    hw_addr 00:00:00:00:00:00

$ devlink port show pci/0000:06:00.0/2 -jp
{
    "port": {
        "pci/0000:06:00.0/2": {
            "type": "eth",
            "netdev": "ens2f0c1pf0vf1",
            "flavour": "pcivf",
            "controller": 1,
            "pfnum": 0,
            "vfnum": 1,
            "external": true,
            "splittable": false,
            "function": {
                "hw_addr": "00:00:00:00:00:00"
            }
        }
    }
}

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-09-22 20:13:09 -06:00
Parav Pandit 8fadd01101 devlink: Show external port attribute
If a port is for an external controller, port's external attribute is
set. Show such external attribute.

An example of an external controller port for PCI VF:

$ devlink port show pci/0000:06:00.0/2
pci/0000:06:00.0/2: type eth netdev ens2f0c1pf0vf1 flavour pcivf pfnum 0 vfnum 1 external true splittable false
  function:
    hw_addr 00:00:00:00:00:00

$ devlink port show pci/0000:06:00.0/2 -jp
{
    "port": {
        "pci/0000:06:00.0/2": {
            "type": "eth",
            "netdev": "ens2f0c1pf0vf1",
            "flavour": "pcivf",
            "pfnum": 0,
            "vfnum": 1,
            "external": true,
            "splittable": false,
            "function": {
                "hw_addr": "00:00:00:00:00:00"
            }
        }
    }
}

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
2020-09-22 20:13:04 -06:00
Amit Cohen 8e6bce735a devlink: Add fflush() in cmd_mon_show_cb()
Similar to other print functions we need to flush buffered data
in order to work with pipes and output redirects.

Without it, stdout output is buffered and not written to the disk.

This is useful when writing scripts that rely on devlink-monitor output.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-08-22 21:13:11 -07:00
David Ahern e572e3af0d Merge branch 'main' into next
Conflicts:
	bridge/fdb.c
	man/man8/bridge.8

Signed-off-by: David Ahern <dsahern@kernel.org>
2020-08-06 16:21:35 +00:00
Stephen Hemminger fbef655568 replace SNAPSHOT with auto-generated version string
Replace the iproute2 snapshot with a version string which is
autogenerated as part of the build process using git describe.

This will also allow seeing if the version of the command
is built from the same sources is as upstream.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-08-03 10:02:47 -07:00
Vasundhara Volam 7332b188a6 devlink: Add board.serial_number to info subcommand.
Add support for reading board serial_number to devlink info
subcommand. Example:

$ devlink dev info pci/0000:af:00.0 -jp
{
    "info": {
        "pci/0000:af:00.0": {
            "driver": "bnxt_en",
            "serial_number": "00-10-18-FF-FE-AD-1A-00",
            "board.serial_number": "433551F+172300000",
            "versions": {
                "fixed": {
                    "board.id": "7339763 Rev 0.",
                    "asic.id": "16D7",
                    "asic.rev": "1"
                },
                "running": {
                    "fw": "216.1.216.0",
                    "fw.psid": "0.0.0",
                    "fw.mgmt": "216.1.192.0",
                    "fw.mgmt.api": "1.10.1",
                    "fw.ncsi": "0.0.0.0",
                    "fw.roce": "216.1.16.0"
                }
            }
        }
    }
}

Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2020-08-03 15:35:56 +00:00
Danielle Ratson e5f4165a9e devlink: Expose port split ability
Add a new attribute that indicates the port split ability to devlink port.

Expose the attribute to user space as RO value, for example:

$devlink port show swp1
pci/0000:03:00.0/61: type eth netdev swp1 flavour physical port 1
splittable false lanes 1

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2020-08-03 14:37:14 +00:00
Danielle Ratson fcbc6c1c71 devlink: Expose number of port lanes
Add a new attribute that indicates the port's number of lanes to devlink port.

Expose the attribute to user space as RO value, for example:

$devlink port show swp1
pci/0000:03:00.0/61: type eth netdev swp1 flavour physical port 1 lanes 1

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2020-08-03 14:36:52 +00:00
Vladyslav Tarasiuk 211c8d6ca9 devlink: Add devlink port health command
Add devlink port health show subcommand which displays information about
specified port reporter or all present port reporters as in the example.
Device and port reporters can be distinguished by a handle being used.

Make other devlink-health subcommands be aliased by devlink port health.
Refactor devlink-health commands for usage of port handles in order to
interact with port reporters.

Change devlink health show output to dump information about both device
and port reporters with correct handles.

Example:
$ devlink health show
pci/0000:00:0b.0:
  reporter fw
    state healthy error 0 recover 0 auto_dump true
  reporter fw_fatal
    state healthy error 0 recover 0 grace_period 1200000 auto_recover true auto_dump true
pci/0000:00:0b.0/1:
  reporter tx
    state healthy error 0 recover 0 grace_period 10000 auto_recover true auto_dump true
  reporter rx
    state healthy error 0 recover 0 grace_period 10000 auto_recover true auto_dump true

$ devlink health show pci/0000:00:0b.0/1 reporter rx
Which is equivalent to:
$ devlink port health show pci/0000:00:0b.0/1 reporter rx
pci/0000:00:0b.0/1:
  reporter rx
    state healthy error 0 recover 0 grace_period 10000 auto_recover true auto_dump true

$ devlink port health show pci/0000:00:0b.0/1 reporter rx -j --pretty
{
    "health": {
         "pci/0000:00:0b.0/1": [ {
                 "reporter": "rx",
                 "state": "healthy",
                 "error": 0,
                 "recover": 0,
                 "grace_period": 500,
                 "auto_recover": true,
                 "auto_dump": true
              } ]
    }
}

$ devlink health set pci/0000:00:0b.0/1 reporter rx grace_period 5000
Which is equivalent to:
$ devlink port health set pci/0000:00:0b.0/1 reporter rx grace_period 5000

$ devlink port health show pci/0000:00:0b.0/1 reporter rx
pci/0000:00:0b.0/1:
  reporter rx
    state healthy error 0 recover 0 grace_period 5000 auto_recover true auto_dump true

Signed-off-by: Vladyslav Tarasiuk <vladyslavt@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2020-07-23 00:32:32 +00:00
Vladyslav Tarasiuk e533faa72e devlink: Add a possibility to print arrays of devlink port handles
Add a capability of printing port handles for arrays in non-JSON format
in devlink-health manner.

Signed-off-by: Vladyslav Tarasiuk <vladyslavt@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2020-07-23 00:32:26 +00:00
David Ahern b78c480532 Merge branch 'main' into next
Signed-off-by: David Ahern <dsahern@kernel.org>
2020-07-14 23:52:43 +00:00
Louis Peens 7c8d7848c7 devlink: add 'disk' to 'fw_load_policy' string validation
The 'fw_load_policy' devlink parameter supports the 'disk' value
since kernel v5.4, seems like there was some oversight in adding
this to iproute, fixed by this patch.

Signed-off-by: Louis Peens <louis.peens@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-07-06 11:14:57 -07:00
Parav Pandit 4dca81e9a8 devlink: Support setting port function hardware address
Support setting devlink port function hardware address.

Example of a PCI VF port which supports a port function:
Set hardware address of the VF's port function.

$ devlink port show pci/0000:06:00.0/2
pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
  function:
    hw_addr 00:00:00:00:00:00

$ devlink port function set pci/0000:06:00.0/2 hw_addr 00:11:22:33:44:55

$ devlink port show pci/0000:06:00.0/2
pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
  function:
    hw_addr 00:11:22:33:44:55

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
2020-07-05 14:49:32 +00:00