- 12 Oct, 2021 16 commits
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Len Baker authored
As noted in the "Deprecated Interfaces, Language Features, Attributes, and Conventions" documentation [1], size calculations (especially multiplication) should not be performed in memory allocator (or similar) function arguments due to the risk of them overflowing. This could lead to values wrapping around and a smaller allocation being made than the caller was expecting. Using those allocations could lead to linear overflows of heap memory and other misbehaviors. So, take the opportunity to refactor the hnae_handle structure to switch the last member to flexible array, changing the code accordingly. Also, fix the comment in the hnae_vf_cb structure to inform that the ae_handle member must be the last member. Then, use the struct_size() helper to do the arithmetic instead of the argument "size + count * size" in the kzalloc() function. This code was detected with the help of Coccinelle and audited and fixed manually. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#open-coded-arithmetic-in-allocator-argumentsSigned-off-by:
Len Baker <len.baker@gmx.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Ido Schimmel says: ==================== mlxsw: Add support for ECN mirroring Petr says: Patches in this set have been floating around for some time now together with trap_fwd support. That will however need more work, time for which is nowhere to be found, apparently. Instead, this patchset enables offload of only packet mirroring on RED mark qevent, enabling mirroring of ECN-marked packets. Formally it enables offload of filters added to blocks bound to the RED qevent mark if: - The switch ASIC is Spectrum-2 or above. - Only a single filter is attached at the block, at chain 0 (the default), and its classifier is matchall. - The filter has hw_stats set to disabled. - The filter has a single action, which is mirror. This differs from early_drop qevent offload, which supports mirroring and trapping. However trapping in context of ECN-marked packets is not suitable, because the HW does not drop the packet, as the trap action implies. And there is as of now no way to express only the part of trapping that transfers the packet to the SW datapath, sans the HW-datapath drop. The patchset progresses as follows: Patch #1 is an extack propagation. Mirroring of ECN-marked packets is configured in the ASIC through an ECN trigger, which is considered "egress", unlike the EARLY_DROP trigger. In patch #2, add a helper to classify triggers as ingress. As clarified above, traps cannot be offloaded on mark qevent. Similarly, given a trap_fwd action, it would not be offloadable on early_drop qevent. In patch #3, introduce support for tracking actions permissible on a given block. Patch #4 actually adds the mark qevent offload. In patch #5, fix a small style issue in one of the selftests, and in patch #6 add mark offload selftests. ==================== Signed-off-by: -
Petr Machata authored
Add do_mark_test(), which is to do_ecn_test() like do_drop_test() is to do_red_test(): meant to test that actions on the RED mark qevent block are offloaded, and executed on ECN-marked packets. The test splits install_qdisc() into its constituents, install_root_qdisc() and install_qdisc_tcX(). This is in order to test that when mirroring is enabled on one TC, the other TC does not mirror. Signed-off-by:
Petr Machata <petrm@nvidia.com> Signed-off-by:
Ido Schimmel <idosch@nvidia.com> Signed-off-by:
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Petr Machata authored
These variables are cut'n'pasted from other functions in the file and not actually used. Signed-off-by:
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Petr Machata authored
The RED "mark" qevent can be offloaded under similar conditions as the RED "early_drop" qevent. Therefore recognize its binding type in the TC_SETUP_BLOCK handler and translate to the right SPAN trigger, with the right set of supported actions. Signed-off-by:
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Petr Machata authored
One block can be bound to several qevents. The qevent type that the block is bound to determines which actions make sense in a given context. In the particular case of mlxsw, trap cannot be offloaded on a RED mark qevent, because the trap contract specifies that the packet is dropped in the HW datapath, and the HW trigger that the action is offloaded to is always forwarding the packet (in addition to marking in). Therefore keep track of which actions are permissible at each binding block. When an attempt is made to bind a certain action at a binding point where it is not supported, bounce the request. Signed-off-by:
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Petr Machata authored
The following patches will configure the MLXSW_SP_SPAN_TRIGGER_ECN mirroring trigger. This trigger is considered "egress", unlike the previously-offloaded _EARLY_DROP. Add a helper to spectrum_span, mlxsw_sp_span_trigger_is_ingress(), to classify triggers to ingress and egress. Pass result of this instead of hardcoding true when calling mlxsw_sp_span_analyzed_port_get()/_put(). Signed-off-by:
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Petr Machata authored
This function will report a new failure in the following patches. Pass extack so that the failure is explicable. Signed-off-by:
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Jakub Kicinski authored
Krzysztof Kozlowski says: ==================== nfc: minor printk cleanup v2: Correct SPDX license in patch 2/7 (as Joe pointed out). v1: Remove unused variable in pn533 (reported by kbuild). ==================== Link: https://lore.kernel.org/r/20211011133835.236347-1-krzysztof.kozlowski@canonical.comSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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Krzysztof Kozlowski authored
ftrace is a preferred and standard way to debug entering and exiting functions so drop useless debug prints. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by:
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Krzysztof Kozlowski authored
ftrace is a preferred and standard way to debug entering and exiting functions so drop useless debug prints. Signed-off-by:
Mark Greer <mgreer@animalcreek.com> Signed-off-by:
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Krzysztof Kozlowski authored
ftrace is a preferred and standard way to debug entering and exiting functions so drop useless debug prints. Signed-off-by:
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Krzysztof Kozlowski authored
ftrace is a preferred and standard way to debug entering and exiting functions so drop useless debug prints. Signed-off-by:
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Krzysztof Kozlowski authored
Simplify the code dereferencing several pointers to reach the struct device. Signed-off-by:
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Krzysztof Kozlowski authored
Replace standard GPLv2 license text with SPDX tag. Although the comment mentions GPLv2-only, it refers to the full license file which allows later GPL versions. Signed-off-by:
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Krzysztof Kozlowski authored
ftrace is a preferred and standard way to debug entering and exiting functions so drop useless debug prints. Signed-off-by:
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- 11 Oct, 2021 19 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/nexDavid S. Miller authored
t-queue Tony Nguyen says: ==================== 100GbE Intel Wired LAN Driver Updates 2021-10-11 Wojciech Drewek says: This series adds support for adding/removing advanced switch filters in ice driver. Advanced filters are building blocks for HW acceleration of TC orchestration. Add ndo_setup_tc callback implementation for PF and VF port representors (when device is configured in switchdev mode). Define dummy packet headers to allow adding advanced rules in HW. Supported headers, and thus filters, are: - MAC + IPv4 + UDP - MAC + VLAN + IPv4 + UDP - MAC + IPv4 + TCP - MAC + VLAN + IPv4 + TCP - MAC + IPv6 + UDP - MAC + VLAN + IPv6 + UDP - MAC + IPv6 + TCP - MAC + VLAN + IPv6 + TCP ==================== Signed-off-by: -
David S. Miller authored
Jeroen de Borst says: ==================== gve: minor code and performance improvements This patchset contains a number of independent minor code and performance improvements. ==================== Signed-off-by: -
Catherine Sullivan authored
The rx_buf_alloc_fail counter wasn't getting updated. Fixes: 433e274b ("gve: Add stats for gve.") Signed-off-by:
Catherine Sullivan <csully@google.com> Signed-off-by:
Jeroen de Borst <jeroendb@google.com> Signed-off-by:
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Jordan Kim authored
Half pages are just used for small enough packets. This change allows this to also apply for systems with pages larger than 4 KB. Fixes: 02b0e0c1 ("gve: Rx Buffer Recycling") Signed-off-by:
Jordan Kim <jrkim@google.com> Signed-off-by:
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Catherine Sullivan authored
Configure XPS when adding tx queues to the notification blocks. Fixes: dbdaa675 ("gve: Move some static functions to a common file") Signed-off-by:
David Awogbemila <awogbemila@google.com> Signed-off-by:
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John Fraker authored
Don't always reset the driver on a TX timeout. Attempt to recover by kicking the queue in case an IRQ was missed. Fixes: 9e5f7d26 ("gve: Add workqueue and reset support") Signed-off-by:
John Fraker <jfraker@google.com> Signed-off-by:
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Tao Liu authored
When TX queue is full, attemt to process enough TX completions to avoid stalling the queue. Fixes: f5cedc84 ("gve: Add transmit and receive support") Signed-off-by:
Tao Liu <xliutaox@google.com> Signed-off-by:
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Catherine Sullivan authored
Add a pagecnt bias field to rx buffer info struct to eliminate needing to increment the atomic page ref count on every pass in the rx hotpath. Also prefetch two packet pages ahead. Fixes: ede3fcf5 ("gve: Add support for raw addressing to the rx path") Signed-off-by:
Yanchun Fu <yangchun@google.com> Signed-off-by:
Nathan Lewis <npl@google.com> Signed-off-by:
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Yangchun Fu authored
Use napi_complete_done to allow for the use of gro_flush_timeout. Fixes: f5cedc84 ("gve: Add transmit and receive support") Signed-off-by:
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Michal Swiatkowski authored
Add tc-flower support for VF port representor devices. Implement ndo_setup_tc callback for TC HW offload on VF port representors devices. Implemented both methods: add and delete tc-flower flows. Mark NETIF_F_HW_TC bit in net device's feature set to enable offload TC infrastructure for port representor. Implement TC filters replay function required to restore filters settings while switchdev configuration is rebuilt. Signed-off-by:
Michal Swiatkowski <michal.swiatkowski@intel.com> Signed-off-by:
Wojciech Drewek <wojciech.drewek@intel.com> Tested-by:
Sandeep Penigalapati <sandeep.penigalapati@intel.com> Signed-off-by:
Tony Nguyen <anthony.l.nguyen@intel.com>
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Kiran Patil authored
Implement ndo_setup_tc net device callback for TC HW offload on PF device. ndo_setup_tc provides support for HW offloading various TC filters. Add support for configuring the following filter with tc-flower: - default L2 filters (src/dst mac addresses, ethertype, VLAN) - variations of L3, L3+L4, L2+L3+L4 filters using advanced filters (including ipv4 and ipv6 addresses). Allow for adding/removing TC flows when PF device is configured in eswitch switchdev mode. Two types of actions are supported at the moment: FLOW_ACTION_DROP and FLOW_ACTION_REDIRECT. Co-developed-by:
Priyalee Kushwaha <priyalee.kushwaha@intel.com> Signed-off-by:
Kiran Patil <kiran.patil@intel.com> Signed-off-by:
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Michal Swiatkowski authored
There is no way to change default lan_en and lb_en flags while adding new rule. Add function that allows changing these flags on rule determined by rule id and recipe id. Function checks if the rule is presented on regular rules list or advance rules list and call the appropriate function to update rule entry. As rules with ICE_SW_LKUP_DFLT recipe aren't tracked in a list, implement function which updates flags without searching for rules based only on rule id. Signed-off-by:
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Victor Raj authored
Change ICE_SW_LKUP_LAST to ICE_MAX_NUM_RECIPES as for now there also can be recipes other than the default. Free all structures created for advanced recipes in cleanup function. Write a function to clean allocated structures on advanced rule info. Signed-off-by:
Victor Raj <victor.raj@intel.com> Signed-off-by:
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Shivanshu Shukla authored
To remove advanced rule the same protocols list like in adding should be send to function. Based on this information list of advanced rules is searched to find the correct rule id. Remove advanced rule if it forwards to only one VSI. If it forwards to list of VSI remove only input VSI from this list. Introduce function to remove rule by id. It is used in case rule needs to be removed even if it forwards to the list of VSI. Allow removing all advanced rules from a particular VSI. It is useful in rebuilding VSI path. Co-developed-by:
Dan Nowlin <dan.nowlin@intel.com> Signed-off-by:
Shivanshu Shukla <shivanshu.shukla@intel.com> Signed-off-by:
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Grishma Kotecha authored
Define dummy packet headers to allow adding advanced rules in HW. This header is used as admin queue command parameter for adding a rule. The firmware will extract correct fields and will use them in look ups. Define each supported packets header and offsets to words used in recipe. Supported headers: - MAC + IPv4 + UDP - MAC + VLAN + IPv4 + UDP - MAC + IPv4 + TCP - MAC + VLAN + IPv4 + TCP - MAC + IPv6 + UDP - MAC + VLAN + IPv6 + UDP - MAC + IPv6 + TCP - MAC + VLAN + IPv6 + TCP Add code for creating an advanced rule. Rule needs to match defined dummy packet, if not return error, which means that this type of rule isn't currently supported. The first step in adding advanced rule is searching for an advanced recipe matching this kind of rule. If it doesn't exist new recipe is created. Dummy packet has to be filled with the correct header field value from the rule definition. It will be used to do look up in HW. Support searching for existing advance rule entry. It is used in case of adding the same rule on different VSI. In this case, instead of creating new rule, the existing one should be updated with refreshed VSI list. Add initialization for prof_res_bm_init flag to zero so that the possible resource for fv in the files can be initialized. Co-developed-by:
Grishma Kotecha <grishma.kotecha@intel.com> Signed-off-by:
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Dan Nowlin authored
These changes introduce code for creating advanced recipes for the switch in hardware. There are a couple of recipes already defined in the HW. They apply to matching on basic protocol headers, like MAC, VLAN, MACVLAN, ethertype or direction (promiscuous), etc.. If the user wants to match on other protocol headers (eg. ip address, src/dst port etc.) or different variation of already supported protocols, there is a need to create new, more complex recipe. That new recipe is referred as 'advanced recipe', and the filtering rule created on top of that recipe is called 'advanced rule'. One recipe can have up to 5 words, but the first word is always reserved for match on switch id, so the driver can define up to 4 words for one recipe. To support recipes with more words up to 5 recipes can be chained, so 20 words can be programmed for look up. Input for adding recipe function is a list of protocols to support. Based on this list correct profile is being chosen. Correct profile means that it contains all protocol types from a list. Each profile have up to 48 field vector words and each of this word have protocol id and offset. These two fields need to match with input data for adding recipe function. If the correct profile can't be found the function returns an error. The next step after finding the correct profile is grouping words into groups. One group can have up to 4 words. This is done to simplify sending recipes to HW (because recipe also can have up to 4 words). In case of chaining (so when look up consists of more than 4 words) last recipe will always have results from the previous recipes used as words. A recipe to profile map is used to store information about which profile is associate with this recipe. This map is an array of 64 elements (max number of recipes) and each element is a 256 bits bitmap (max number of profiles) Profile to recipe map is used to store information about which recipe is associate with this profile. This map is an array of 256 elements (max number of profiles) and each element is a 64 bits bitmap (max number of recipes) Signed-off-by:
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Dan Nowlin authored
Implement functions to manage profiles and field vectors in hardware. In hardware, there are up to 256 profiles and each of these profiles can have 48 field vector words. Each field vector word is described by protocol id and offset in the packet. To add a new recipe all used profiles need to be searched. If the profile contains all required protocol ids and offsets from the recipe it can be used. The driver has to add this profile to recipe association to tell hardware that newly added recipe is going to be associated with this profile. The amount of used profiles depend on the package. To avoid searching across not used profile, max profile id value is calculated at init flow. The profile is considered as unused when all field vector words in the profile are invalid (protocol id 0xff and offset 0x1ff). Profiles are read from the package section ICE_SID_FLD_VEC_SW. Empty field vector words can be used for recipe results. Store all unused field vector words in prof_res_bm. It is a 256 elements array (max number of profiles) each element is a 48 bit bitmap (max number of field vector words). For now, support only non-tunnel profiles type. Co-developed-by:
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Grishma Kotecha authored
Add code to manage recipes and profiles on admin queue layer. Allow the driver to add a new recipe and update an existing one. Get a recipe and get a recipe to profile association is mostly used in update existing recipes code. Only default recipes can be updated. An update is done by reading recipes from HW, changing their params and calling add recipe command. Support following admin queue commands: - ice_aqc_opc_add_recipe (0x0290) - create a recipe with protocol header information and other details that determine how this recipe filter works - ice_aqc_opc_recipe_to_profile (0x0291) - associate a switch recipe to a profile - ice_aqc_opc_get_recipe (0x0292) - get details of an existing recipe - ice_aqc_opc_get_recipe_to_profile (0x0293) - get a recipe associated with profile ID Define ICE_AQC_RES_TYPE_RECIPE resource type to hold a switch recipe. It is needed when a new switch recipe needs to be created. Co-developed-by:
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Stephen Rothwell authored
Fix for this build problem: drivers/net/ethernet/sun/ldmvsw.c: In function 'vsw_alloc_netdev': drivers/net/ethernet/sun/ldmvsw.c:243:2: error: expected ';' before 'sprintf' sprintf(dev->name, "vif%d.%d", (int)handle, (int)port_id); ^~~~~~~ Fixes: a7639279 ("ethernet: sun: remove direct netdev->dev_addr writes") Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Link: https://lore.kernel.org/r/20211011173424.7743035d@canb.auug.org.auSigned-off-by:
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- 10 Oct, 2021 5 commits
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Subbaraya Sundeep authored
This patch separates the logic of configuring hardware maximum transmit frame size and receive frame size. This simplifies the logic to calculate receive buffer size and using cqe descriptor of different size. Also additional size of skb_shared_info structure is allocated for each receive buffer pointer given to hardware which is not necessary. Hence change the size calculation to remove the size of skb_shared_info. Add a check for array out of bounds while adding fragments to the network stack. Signed-off-by:
Subbaraya Sundeep <sbhatta@marvell.com> Signed-off-by:
Hariprasad Kelam <hkelam@marvell.com> Signed-off-by:
Sunil Goutham <sgoutham@marvell.com> Signed-off-by:
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Christophe JAILLET authored
'destroy_workqueue()' already drains the queue before destroying it, so there is no need to flush it explicitly. Remove the redundant 'flush_workqueue()' calls. This was generated with coccinelle: @@ expression E; @@ - flush_workqueue(E); destroy_workqueue(E); Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> #mlx* Signed-off-by:
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Li RongQing authored
networking benchmark shows that __rcu_read_lock and __rcu_read_unlock takes some cpu cycles, and we can avoid calling them partially in virtio rx path by check xdp_enabled of vi, and xdp is disabled most of time Signed-off-by:
Li RongQing <lirongqing@baidu.com> Signed-off-by:
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Antoine Tenart authored
Cosmetic commit making dev_get_port_parent_id slightly more readable. There is no need to split the condition to return after calling devlink_compat_switch_id_get and after that 'recurse' is always true. Signed-off-by:
Antoine Tenart <atenart@kernel.org> Signed-off-by:
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Ansuel Smith authored
Give a name to known debug regs from Documentation instead of using unknown hex values. Signed-off-by:
Ansuel Smith <ansuelsmth@gmail.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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