- 12 Aug, 2021 2 commits
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Nick Richardson authored
In order to represent the distribution of imix packet sizes, a pre-computed data structure is used. It features 100 (IMIX_PRECISION) "bins". Contiguous ranges of these bins represent the respective packet size of each imix entry. This is done to avoid the overhead of selecting the correct imix packet size based on the corresponding weights. Example: imix_weights 40,7 576,4 1500,1 total_weight = 7 + 4 + 1 = 12 pkt_size 40 occurs 7/total_weight = 58% of the time pkt_size 576 occurs 4/total_weight = 33% of the time pkt_size 1500 occurs 1/total_weight = 9% of the time We generate a random number between 0-100 and select the corresponding packet size based on the specified weights. Eg. random number = 358723895 % 100 = 65 Selects the packet size corresponding to index:65 in the pre-computed imix_distribution array. An example of the pre-computed array is below: The imix_distribution will look like the following: 0 -> 0 (index of imix_entry.size == 40) 1 -> 0 (index of imix_entry.size == 40) 2 -> 0 (index of imix_entry.size == 40) [...] -> 0 (index of imix_entry.size == 40) 57 -> 0 (index of imix_entry.size == 40) 58 -> 1 (index of imix_entry.size == 576) [...] -> 1 (index of imix_entry.size == 576) 90 -> 1 (index of imix_entry.size == 576) 91 -> 2 (index of imix_entry.size == 1500) [...] -> 2 (index of imix_entry.size == 1500) 99 -> 2 (index of imix_entry.size == 1500) Create and use "bin" representation of the imix distribution. Signed-off-by:
Nick Richardson <richardsonnick@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Nick Richardson authored
Adds "imix_weights" command for specifying internet mix distribution. The command is in this format: "imix_weights size_1,weight_1 size_2,weight_2 ... size_n,weight_n" where the probability that packet size_i is picked is: weight_i / (weight_1 + weight_2 + .. + weight_n) The user may provide up to 100 imix entries (size_i,weight_i) in this command. The user specified imix entries will be displayed in the "Params" section of the interface output. Values for clone_skb > 0 is not supported in IMIX mode. Summary of changes: Add flag for enabling internet mix mode. Add command (imix_weights) for internet mix input. Return -ENOTSUPP when clone_skb > 0 in IMIX mode. Display imix_weights in Params. Create data structures to store imix entries and distribution. Signed-off-by:
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- 11 Aug, 2021 38 commits
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Nikolay Aleksandrov authored
When global vlan options are equal sequentially we compress them in a range to save space and reduce processing time. In order to have the proper range end id we need to update range_end if the options are equal otherwise we get ranges with the same end vlan id as the start. Fixes: 743a53d9 ("net: bridge: vlan: add support for dumping global vlan options") Signed-off-by:
Nikolay Aleksandrov <nikolay@nvidia.com> Link: https://lore.kernel.org/r/20210810092139.11700-1-razor@blackwall.orgSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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Jeremy Kerr authored
This change adds a 'type' attribute to routes, which can be parsed from a RTM_NEWROUTE message. This will help to distinguish local vs. peer routes in a future change. This means userspace will need to set a correct rtm_type in RTM_NEWROUTE and RTM_DELROUTE messages; we currently only accept RTN_UNICAST. Signed-off-by:
Jeremy Kerr <jk@codeconstruct.com.au> Link: https://lore.kernel.org/r/20210810023834.2231088-1-jk@codeconstruct.com.auSigned-off-by:
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Yufeng Mo authored
Currently, four reset types are supported for the HNS3 ethernet driver: IMP reset, global reset, function reset, and FLR. Only FLR can now be triggered by the user. To restore the device when an exception occurs, add support for triggering reset by ethtool. Run the "ethtool --reset DEVNAME mgmt | all | dedicated" to trigger the IMP | global | function reset manually. In addition, VF can only trigger function reset. Signed-off-by:
Yufeng Mo <moyufeng@huawei.com> Signed-off-by:
Guangbin Huang <huangguangbin2@huawei.com> Link: https://lore.kernel.org/r/1628602128-15640-1-git-send-email-huangguangbin2@huawei.comSigned-off-by:
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Jakub Kicinski authored
Jonathan Toppins says: ==================== bonding: cleanup header file and error msgs Two small patches removing unreferenced symbols and unifying error messages across netlink and printk. ==================== Link: https://lore.kernel.org/r/cover.1628650079.git.jtoppins@redhat.comSigned-off-by:
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Jonathan Toppins authored
There seems to be no reason to have different error messages between netlink and printk. It also cleans up the function slightly. Signed-off-by:
Jonathan Toppins <jtoppins@redhat.com> Signed-off-by:
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Jonathan Toppins authored
All of the symbols either only exist in bond_options.c or nowhere at all. These symbols were verified to not exist in the code base by using `git grep` and their removal was verified by compiling bonding.ko. Signed-off-by:
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Mark Brown authored
The ocelot driver makes use of regmap, wrapping it with driver specific operations that are thin wrappers around the core regmap APIs. These are exported with EXPORT_SYMBOL, dropping the _GPL from the core regmap exports which is frowned upon. Add _GPL suffixes to at least the APIs that are doing register I/O. Signed-off-by:
Mark Brown <broonie@kernel.org> Acked-by:
Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210810123748.47871-1-broonie@kernel.orgSigned-off-by:
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David S. Miller authored
Vladimir Oltean says: ==================== DSA tagger helpers The goal of this series is to minimize the use of memmove and skb->data in the DSA tagging protocol drivers. Unfiltered access to this level of information is not very friendly to drive-by contributors, and sometimes is also not the easiest to review. For starters, I have converted the most common form of DSA tagging protocols: the DSA headers which are placed where the EtherType is. The helper functions introduced by this series are: - dsa_alloc_etype_header - dsa_strip_etype_header - dsa_etype_header_pos_rx - dsa_etype_header_pos_tx This series is just a resend as non-RFC of v1. ==================== Signed-off-by: -
Vladimir Oltean authored
Create a similar helper for locating the offset to the DSA header relative to skb->data, and make the existing EtherType header taggers to use it. Signed-off-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Vladimir Oltean authored
It seems that protocol tagging driver writers are always surprised about the formula they use to reach their EtherType header on RX, which becomes apparent from the fact that there are comments in multiple drivers that mention the same information. Create a helper that returns a void pointer to skb->data - 2, as well as centralize the explanation why that is the case. Signed-off-by:
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Vladimir Oltean authored
Hide away the memmove used by DSA EtherType header taggers to shift the MAC SA and DA to the left to make room for the header, after they've called skb_push(). The call to skb_push() is still left explicit in drivers, to be symmetric with dsa_strip_etype_header, and because not all callers can be refactored to do it (for example, brcm_tag_xmit_ll has common code for a pre-Ethernet DSA tag and an EtherType DSA tag). Signed-off-by:
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Vladimir Oltean authored
All header taggers open-code a memmove that is fairly not all that obvious, and we can hide the details behind a helper function, since the only thing specific to the driver is the length of the header tag. Signed-off-by:
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David S. Miller authored
Parav Pandit says: ==================== devlink: Control auxiliary devices Currently, for mlx5 multi-function device, a user is not able to control which functionality to enable/disable. For example, each PCI PF, VF, SF function by default has netdevice, RDMA and vdpa-net devices always enabled. Hence, enable user to control which device functionality to enable/disable. This is achieved by using existing devlink params [1] to enable/disable eth, rdma and vdpa net functionality control knob. For example user interested in only vdpa device function: performs, $ devlink dev param set pci/0000:06:00.0 name enable_rdma value false \ cmode driverinit $ devlink dev param set pci/0000:06:00.0 name enable_eth value false \ cmode driverinit $ devlink dev param set pci/0000:06:00.0 name enable_vnet value true \ cmode driverinit $ devlink dev reload pci/0000:06:00.0 Reload command honors parameters set, initializes the device that user has composed using devlink dev params and resources. Devices before reload: mlx5_core.sf.4 (subfunction device) /\ /| \ / | \ / | \ mlx5_core.eth.4 | mlx5_core.rdma.4 (SF eth aux dev) | (SF rdma aux dev) | | | | | | enp6s0f0s88 | mlx5_0 (SF netdev) | (SF rdma device) | mlx5_core.vnet.4 (SF vnet aux dev) | | auxiliary/mlx5_core.sf.4 (vdpa net mgmt device) Above example reconfigures the device with only VDPA functionality. Devices after reload: mlx5_core.sf.4 (subfunction device) /\ / \ / \ / \ mlx5_core.vnet.4 no eth, no rdma aux devices (SF vnet aux dev) Above parameters enable user to compose the device as needed based on the use case. Since devlink params are done on the devlink instance, these knobs are uniformly usable for PCI PF, VF and SF devices. ==================== Signed-off-by: -
Parav Pandit authored
Enable user to disable VDPA net auxiliary device so that when it is not required, user can disable it. For example, $ devlink dev param set pci/0000:06:00.0 \ name enable_vnet value false cmode driverinit $ devlink dev reload pci/0000:06:00.0 At this point devlink instance do not create auxiliary device mlx5_core.vnet.2 for the VDPA net functionality. Signed-off-by:Parav Pandit <parav@nvidia.com> Reviewed-by:
Leon Romanovsky <leonro@nvidia.com> Signed-off-by:
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Parav Pandit authored
Enable user to disable RDMA auxiliary device so that when it is not required, user can disable it. For example, $ devlink dev param set pci/0000:06:00.0 \ name enable_rdma value false cmode driverinit $ devlink dev reload pci/0000:06:00.0 At this point devlink instance do not create auxiliary device mlx5_core.rdma.2 for the RDMA functionality. Signed-off-by: -
Parav Pandit authored
Enable user to disable Ethernet auxiliary device so that when it is not required, user can disable it. For example, $ devlink dev param set pci/0000:06:00.0 \ name enable_eth value false cmode driverinit $ devlink dev reload pci/0000:06:00.0 At this point devlink instance do not create mlx5_core.eth.2 auxiliary device for the Ethernet functionality. Signed-off-by: -
Parav Pandit authored
Cleanup routine missed to unpublish the parameters. Add it. Fixes: e890acd5 ("net/mlx5: Add devlink flow_steering_mode parameter") Signed-off-by:
Jiri Pirko <jiri@nvidia.com> Reviewed-by:
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Parav Pandit authored
Enable drivers to publish/unpublish individual parameter. Signed-off-by:
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Parav Pandit authored
Currently device configuration parameters can be registered as an array. Due to this a constant array must be registered. A single driver supporting multiple devices each with different device capabilities end up registering all parameters even if it doesn't support it. One possible workaround a driver can do is, it registers multiple single entry arrays to overcome such limitation. Better is to provide a API that enables driver to register/unregister a single parameter. This also further helps in two ways. (1) to reduce the memory of devlink_param_entry by avoiding in registering parameters which are not supported by the device. (2) avoid generating multiple parameter add, delete, publish, unpublish, init value notifications for such unsupported parameters Signed-off-by:
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Parav Pandit authored
Create and use a helper function for one parameter registration. Subsequent patch also will reuse this for driver facing routine to register a single parameter. Signed-off-by:
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Parav Pandit authored
Add new device generic parameter to enable/disable creation of VDPA net auxiliary device and associated device functionality in the devlink instance. User who prefers to disable such functionality can disable it using below example. $ devlink dev param set pci/0000:06:00.0 \ name enable_vnet value false cmode driverinit $ devlink dev reload pci/0000:06:00.0 At this point devlink instance do not create auxiliary device for the VDPA net functionality. Signed-off-by: -
Parav Pandit authored
Add new device generic parameter to enable/disable creation of RDMA auxiliary device and associated device functionality in the devlink instance. User who prefers to disable such functionality can disable it using below example. $ devlink dev param set pci/0000:06:00.0 \ name enable_rdma value false cmode driverinit $ devlink dev reload pci/0000:06:00.0 At this point devlink instance do not create auxiliary device for the RDMA functionality. Signed-off-by: -
Parav Pandit authored
Add new device generic parameter to enable/disable creation of Ethernet auxiliary device and associated device functionality in the devlink instance. User who prefers to disable such functionality can disable it using below example. $ devlink dev param set pci/0000:06:00.0 \ name enable_eth value false cmode driverinit $ devlink dev reload pci/0000:06:00.0 At this point devlink instance do not create auxiliary device for the Ethernet functionality. Signed-off-by: -
David S. Miller authored
Nikolay Aleksandrov says: ==================== net: bridge: vlan: add global mcast options This is the first follow-up set after the support for per-vlan multicast contexts which extends global vlan options to support bridge's multicast config per-vlan, it enables user-space to change and dump the already existing bridge vlan multicast context options. The global option patches (01 - 09 and 12-13) follow a similar pattern of changing current mcast functions to take multicast context instead of a port/bridge directly. Option equality checks have been added for dumping vlan range compression. The last 2 patches extend the mcast router dump support so it can be re-used when dumping vlan config. patches 01 - 09: add support for various mcast options patches 10 - 11: prepare for per-vlan querier control patches 12 - 13: add support for querier control and router control patches 14 - 15: add support for dumping per-vlan router ports Next patch-sets: - per-port/vlan router option config - iproute2 support for all new vlan options - selftests ==================== Signed-off-by: -
Nikolay Aleksandrov authored
Embed the standard multicast router port export by br_rports_fill_info() into a new global vlan attribute BRIDGE_VLANDB_GOPTS_MCAST_ROUTER_PORTS. In order to have the same format for the global bridge mcast context and the per-vlan mcast context we need a double-nesting: - BRIDGE_VLANDB_GOPTS_MCAST_ROUTER_PORTS - MDBA_ROUTER Currently we don't compare router lists, if any router port exists in the bridge mcast contexts we consider their option sets as different and export them separately. In addition we export the router port vlan id when dumping similar to the router port notification format. Signed-off-by:
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Nikolay Aleksandrov authored
When we are dumping the router ports of a vlan mcast context we need to use the bridge/vlan and port/vlan's multicast contexts to check if IPv4/IPv6 router port is present and later to dump the vlan id. Signed-off-by:
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Nikolay Aleksandrov authored
Add support to change and retrieve global vlan multicast router state which is used for the bridge itself. We just need to pass multicast context to br_multicast_set_router instead of bridge device and the rest of the logic remains the same. Signed-off-by:
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Nikolay Aleksandrov authored
Add support to change and retrieve global vlan multicast querier state. We just need to pass multicast context to br_multicast_set_querier instead of bridge device and the rest of the logic remains the same. Signed-off-by:
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Nikolay Aleksandrov authored
It is a minor optimization and better behaviour to make sure querier and query sending routines affect only the matching multicast context depending if vlan snooping is enabled (vlan ctx vs bridge ctx). It also avoids sending unnecessary extra query packets. Signed-off-by:
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Nikolay Aleksandrov authored
We need to have the querier state per multicast context in order to have per-vlan control, so remove the internal option bit and move it to the multicast context. Also annotate the lockless reads of the new variable. Signed-off-by:
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Nikolay Aleksandrov authored
Add support to change and retrieve global vlan multicast startup query interval option. Signed-off-by:
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Nikolay Aleksandrov authored
Add support to change and retrieve global vlan multicast query response interval option. Signed-off-by:
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Nikolay Aleksandrov authored
Add support to change and retrieve global vlan multicast query interval option. Signed-off-by:
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Nikolay Aleksandrov authored
Add support to change and retrieve global vlan multicast querier interval option. Signed-off-by:
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Nikolay Aleksandrov authored
Add support to change and retrieve global vlan multicast membership interval option. Signed-off-by:
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Nikolay Aleksandrov authored
Add support to change and retrieve global vlan multicast last member interval option. Signed-off-by:
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Nikolay Aleksandrov authored
Add support to change and retrieve global vlan multicast startup query count option. Signed-off-by:
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Nikolay Aleksandrov authored
Add support to change and retrieve global vlan multicast last member count option. Signed-off-by:
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