diff options
Diffstat (limited to 'Documentation/networking/devlink')
| -rw-r--r-- | Documentation/networking/devlink/devlink-health.rst | 2 | ||||
| -rw-r--r-- | Documentation/networking/devlink/devlink-params.rst | 8 | ||||
| -rw-r--r-- | Documentation/networking/devlink/index.rst | 20 | ||||
| -rw-r--r-- | Documentation/networking/devlink/mlx5.rst | 113 | ||||
| -rw-r--r-- | Documentation/networking/devlink/zl3073x.rst | 14 |
5 files changed, 143 insertions, 14 deletions
diff --git a/Documentation/networking/devlink/devlink-health.rst b/Documentation/networking/devlink/devlink-health.rst index e0b8cfed610a..4d10536377ab 100644 --- a/Documentation/networking/devlink/devlink-health.rst +++ b/Documentation/networking/devlink/devlink-health.rst @@ -50,7 +50,7 @@ Once an error is reported, devlink health will perform the following actions: * Auto recovery attempt is being done. Depends on: - Auto-recovery configuration - - Grace period vs. time passed since last recover + - Grace period (and burst period) vs. time passed since last recover Devlink formatted message ========================= diff --git a/Documentation/networking/devlink/devlink-params.rst b/Documentation/networking/devlink/devlink-params.rst index 211b58177e12..0a9c20d70122 100644 --- a/Documentation/networking/devlink/devlink-params.rst +++ b/Documentation/networking/devlink/devlink-params.rst @@ -143,3 +143,11 @@ own name. * - ``clock_id`` - u64 - Clock ID used by the device for registering DPLL devices and pins. + * - ``total_vfs`` + - u32 + - The max number of Virtual Functions (VFs) exposed by the PF. + after reboot/pci reset, 'sriov_totalvfs' entry under the device's sysfs + directory will report this value. + * - ``num_doorbells`` + - u32 + - Controls the number of doorbells used by the device. diff --git a/Documentation/networking/devlink/index.rst b/Documentation/networking/devlink/index.rst index 270a65a01411..0c58e5c729d9 100644 --- a/Documentation/networking/devlink/index.rst +++ b/Documentation/networking/devlink/index.rst @@ -56,18 +56,18 @@ general. :maxdepth: 1 devlink-dpipe + devlink-eswitch-attr + devlink-flash devlink-health devlink-info - devlink-flash + devlink-linecard devlink-params devlink-port devlink-region - devlink-resource devlink-reload + devlink-resource devlink-selftests devlink-trap - devlink-linecard - devlink-eswitch-attr Driver-specific documentation ----------------------------- @@ -78,12 +78,14 @@ parameters, info versions, and other features it supports. .. toctree:: :maxdepth: 1 + am65-nuss-cpsw-switch bnxt etas_es58x hns3 i40e - ionic ice + ionic + iosm ixgbe kvaser_pciefd kvaser_usb @@ -93,11 +95,9 @@ parameters, info versions, and other features it supports. mv88e6xxx netdevsim nfp - qed - ti-cpsw-switch - am65-nuss-cpsw-switch - prestera - iosm octeontx2 + prestera + qed sfc + ti-cpsw-switch zl3073x diff --git a/Documentation/networking/devlink/mlx5.rst b/Documentation/networking/devlink/mlx5.rst index 7febe0aecd53..0e5f9c76e514 100644 --- a/Documentation/networking/devlink/mlx5.rst +++ b/Documentation/networking/devlink/mlx5.rst @@ -15,23 +15,62 @@ Parameters * - Name - Mode - Validation + - Notes * - ``enable_roce`` - driverinit - - Type: Boolean - - If the device supports RoCE disablement, RoCE enablement state controls + - Boolean + - If the device supports RoCE disablement, RoCE enablement state controls device support for RoCE capability. Otherwise, the control occurs in the driver stack. When RoCE is disabled at the driver level, only raw ethernet QPs are supported. * - ``io_eq_size`` - driverinit - The range is between 64 and 4096. + - * - ``event_eq_size`` - driverinit - The range is between 64 and 4096. + - * - ``max_macs`` - driverinit - The range is between 1 and 2^31. Only power of 2 values are supported. + - + * - ``enable_sriov`` + - permanent + - Boolean + - Applies to each physical function (PF) independently, if the device + supports it. Otherwise, it applies symmetrically to all PFs. + * - ``total_vfs`` + - permanent + - The range is between 1 and a device-specific max. + - Applies to each physical function (PF) independently, if the device + supports it. Otherwise, it applies symmetrically to all PFs. + +Note: permanent parameters such as ``enable_sriov`` and ``total_vfs`` require FW reset to take effect + +.. code-block:: bash + + # setup parameters + devlink dev param set pci/0000:01:00.0 name enable_sriov value true cmode permanent + devlink dev param set pci/0000:01:00.0 name total_vfs value 8 cmode permanent + + # Fw reset + devlink dev reload pci/0000:01:00.0 action fw_activate + + # for PCI related config such as sriov PCI reset/rescan is required: + echo 1 >/sys/bus/pci/devices/0000:01:00.0/remove + echo 1 >/sys/bus/pci/rescan + grep ^ /sys/bus/pci/devices/0000:01:00.0/sriov_* + + * - ``num_doorbells`` + - driverinit + - This controls the number of channel doorbells used by the netdev. In all + cases, an additional doorbell is allocated and used for non-channel + communication (e.g. for PTP, HWS, etc.). Supported values are: + + - 0: No channel-specific doorbells, use the global one for everything. + - [1, max_num_channels]: Spread netdev channels equally across these + doorbells. The ``mlx5`` driver also implements the following driver-specific parameters. @@ -116,6 +155,68 @@ parameters. - u32 - driverinit - Control the size (in packets) of the hairpin queues. + * - ``pcie_cong_inbound_high`` + - u16 + - driverinit + - High threshold configuration for PCIe congestion events. The firmware + will send an event once device side inbound PCIe traffic went + above the configured high threshold for a long enough period (at least + 200ms). + + See pci_bw_inbound_high ethtool stat. + + Units are 0.01 %. Accepted values are in range [0, 10000]. + pcie_cong_inbound_low < pcie_cong_inbound_high. + Default value: 9000 (Corresponds to 90%). + * - ``pcie_cong_inbound_low`` + - u16 + - driverinit + - Low threshold configuration for PCIe congestion events. The firmware + will send an event once device side inbound PCIe traffic went + below the configured low threshold, only after having been previously in + a congested state. + + See pci_bw_inbound_low ethtool stat. + + Units are 0.01 %. Accepted values are in range [0, 10000]. + pcie_cong_inbound_low < pcie_cong_inbound_high. + Default value: 7500. + * - ``pcie_cong_outbound_high`` + - u16 + - driverinit + - High threshold configuration for PCIe congestion events. The firmware + will send an event once device side outbound PCIe traffic went + above the configured high threshold for a long enough period (at least + 200ms). + + See pci_bw_outbound_high ethtool stat. + + Units are 0.01 %. Accepted values are in range [0, 10000]. + pcie_cong_outbound_low < pcie_cong_outbound_high. + Default value: 9000 (Corresponds to 90%). + * - ``pcie_cong_outbound_low`` + - u16 + - driverinit + - Low threshold configuration for PCIe congestion events. The firmware + will send an event once device side outbound PCIe traffic went + below the configured low threshold, only after having been previously in + a congested state. + + See pci_bw_outbound_low ethtool stat. + + Units are 0.01 %. Accepted values are in range [0, 10000]. + pcie_cong_outbound_low < pcie_cong_outbound_high. + Default value: 7500. + + * - ``cqe_compress_type`` + - string + - permanent + - Configure which mechanism/algorithm should be used by the NIC that will + affect the rate (aggressiveness) of compressed CQEs depending on PCIe bus + conditions and other internal NIC factors. This mode affects all queues + that enable compression. + * ``balanced`` : Merges fewer CQEs, resulting in a moderate compression ratio but maintaining a balance between bandwidth savings and performance + * ``aggressive`` : Merges more CQEs into a single entry, achieving a higher compression rate and maximizing performance, particularly under high traffic loads The ``mlx5`` driver supports reloading via ``DEVLINK_CMD_RELOAD`` @@ -284,6 +385,12 @@ Description of the vnic counters: amount of Interconnect Host Memory (ICM) consumed by the vnic in granularity of 4KB. ICM is host memory allocated by SW upon HCA request and is used for storing data structures that control HCA operation. +- bar_uar_access + number of WRITE or READ access operations to the UAR on the PCIe BAR. +- odp_local_triggered_page_fault + number of locally-triggered page-faults due to ODP. +- odp_remote_triggered_page_fault + number of remotly-triggered page-faults due to ODP. User commands examples: diff --git a/Documentation/networking/devlink/zl3073x.rst b/Documentation/networking/devlink/zl3073x.rst index 4b6cfaf38643..fc5a8dc272a7 100644 --- a/Documentation/networking/devlink/zl3073x.rst +++ b/Documentation/networking/devlink/zl3073x.rst @@ -49,3 +49,17 @@ The ``zl3073x`` driver reports the following versions - running - 1.3.0.1 - Device configuration version customized by OEM + +Flash Update +============ + +The ``zl3073x`` driver implements support for flash update using the +``devlink-flash`` interface. It supports updating the device flash using a +combined flash image ("bundle") that contains multiple components (firmware +parts and configurations). + +During the flash procedure, the standard firmware interface is not available, +so the driver unregisters all DPLLs and associated pins, and re-registers them +once the flash procedure is complete. + +The driver does not support any overwrite mask flags. |