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path: root/drivers/net/ethernet/netronome/nfp/abm/main.c
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2021-10-02ethernet: use eth_hw_addr_set() instead of ether_addr_copy()Jakub Kicinski1-1/+1
Convert Ethernet from ether_addr_copy() to eth_hw_addr_set(): @@ expression dev, np; @@ - ether_addr_copy(dev->dev_addr, np) + eth_hw_addr_set(dev, np) Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-17nfp: Replace nfp_pr_et with ethtool_sprintfAlexander Duyck1-2/+2
The nfp_pr_et function is nearly identical to ethtool_sprintf except for the fact that it passes the pointer by value and as a return whereas ethtool_sprintf passes it as a pointer. Since they are so close just update nfp to make use of ethtool_sprintf Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: Alexander Duyck <alexanderduyck@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-09nfp: abm: fix error return code in nfp_abm_vnic_alloc()Wei Yongjun1-1/+3
Fix to return negative error code -ENOMEM from the kzalloc() error handling case instead of 0, as done elsewhere in this function. Fixes: 174ab544e3bc ("nfp: abm: add cls_u32 offload for simple band classification") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-04nfp: abm: fix a memory leak bugQiushi Wu1-0/+1
In function nfp_abm_vnic_set_mac, pointer nsp is allocated by nfp_nsp_open. But when nfp_nsp_has_hwinfo_lookup fail, the pointer is not released, which can lead to a memory leak bug. Fix this issue by adding nfp_nsp_close(nsp) in the error path. Fixes: f6e71efdf9fb1 ("nfp: abm: look up MAC addresses via management FW") Signed-off-by: Qiushi Wu <wu000273@umn.edu> Acked-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-16nfp: allow fallback packets from non-reprsJohn Hurley1-2/+3
Currently, it is assumed that fallback packets will be from reprs. Modify this to allow an app to receive non-repr ports from the fallback channel - e.g. from an internal port. If such a packet is received, do not update repr stats. Change the naming function calls so as not to imply it will always be a repr netdev returned. Add the option to set a bool value to redirect a fallback packet out the returned port rather than RXing it. Setting of this bool in subsequent patches allows the handling of packets falling back when they are due to egress an internal port. Signed-off-by: John Hurley <john.hurley@netronome.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-16nfp: abm: allow to opt-out of RED offloadJakub Kicinski1-6/+19
FW team asks to be able to not support RED even if NIC is capable of buffering for testing and experimentation. Add an opt-out flag. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-01nfp: add locking around representor changesJakub Kicinski1-0/+4
Up until now we never needed to keep a networking locks around representors accesses, we only accessed them when device was reconfigured (under nfp pf->lock) or on fast path (under RCU). Now we want to be able to iterate over all representors during notifications, so make sure representor assignment is done under RTNL lock. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20nfp: abm: add support for more threshold actionsJakub Kicinski1-2/+12
Original FW only allowed us to perform ECN marking. Newer releases also support plain old drop. Add the ability to configure drop policy. This is particularly useful in combination with GRED, because different bands can have different ECN marking setting. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20nfp: abm: add cls_u32 offload for simple band classificationJakub Kicinski1-1/+22
Use offload of very simple u32 filters to direct packets to GRED bands based on the DSCP marking. No u32 hashing is supported, just plain simple filters matching on ToS or Priority with appropriate mask device can support. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20nfp: abm: calculate PRIO map len and check mailbox sizeJakub Kicinski1-1/+4
In preparation for PRIO offload calculate how long the prio map for FW will be and make sure the configuration can be performed via the vNIC mailbox. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20nfp: abm: add GRED offloadJakub Kicinski1-0/+2
Add support for GRED offload. It behaves much like RED, but can apply different parameters to different bands. GRED operates pretty much exactly like our HW/FW with a single FIFO and different RED state instances. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20nfp: abm: size threshold table to account for bandsJakub Kicinski1-2/+2
Make sure the threshold table is large enough to hold information for all bands. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-14nfp: abm: restructure Qdisc handlingJakub Kicinski1-12/+2
In preparation of handling more Qdisc types switch to a different offload strategy. We have now recreated the Qdisc hierarchy in the driver. Every time the hierarchy changes parse it, and update the configuration of the HW accordingly. While at it drop the support of pretending that we can instantiate a single queue on a multi-queue device in HW/FW. MQ is now required, and each queue will have its own instance of RED. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-14nfp: abm: remember which Qdisc is rootJakub Kicinski1-0/+2
Keep track of which Qdisc is currently root. We need to implement TC_SETUP_ROOT_QDISC handling, and for completeness also clear the root Qdisc pointer when it's freed. TC_SETUP_ROOT_QDISC isn't always sent when device is dismantled. Remembering the root Qdisc will allow us to build the entire hierarchy in following patches. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-14nfp: abm: track all offload-enabled qdiscsJakub Kicinski1-0/+2
Allocate an object corresponding to any offloaded qdisc we are informed about by the kernel. Not only the qdiscs we have a chance of offloading. The count of created objects will be used to decide whether the ethtool TC offload can be disabled, since otherwise we may miss destroy commands. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-14nfp: abm: keep track of all RED thresholdsJakub Kicinski1-2/+23
Instead of writing the threshold out when Qdisc is configured and not remembering it move to a scheme where we remember all thresholds. When configuration changes parse the offloaded Qdiscs and set thresholds appropriately. This will help future extensions. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-14nfp: abm: rename qdiscs -> red_qdiscsJakub Kicinski1-5/+6
Rename qdiscs member to red_qdiscs. One of following patches will use the name qdiscs for tracking all qdisc types. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09nfp: abm: split qdisc offload code into a separate fileJakub Kicinski1-266/+0
The Qdisc offload code is logically separate, and we will soon do significant surgery on it to support more Qdiscs, so move it to a separate file. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-11nfp: replace long license headers with SPDXJakub Kicinski1-33/+2
Replace the repeated license text with SDPX identifiers. While at it bump the Copyright dates for files we touched this year. Signed-off-by: Edwin Peer <edwin.peer@netronome.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Nic Viljoen <nick.viljoen@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-29nfp: abm: look up MAC addresses via management FWJakub Kicinski1-9/+25
In multi-host scenarios Management FW may allocate MAC addresses at runtime, we have to use the indirect lookup to find them. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-13treewide: kvzalloc() -> kvcalloc()Kees Cook1-1/+1
The kvzalloc() function has a 2-factor argument form, kvcalloc(). This patch replaces cases of: kvzalloc(a * b, gfp) with: kvcalloc(a * b, gfp) as well as handling cases of: kvzalloc(a * b * c, gfp) with: kvzalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kvcalloc(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kvzalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kvzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kvzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kvzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kvzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kvzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kvzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kvzalloc( - sizeof(u8) * COUNT + COUNT , ...) | kvzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kvzalloc( - sizeof(char) * COUNT + COUNT , ...) | kvzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kvzalloc + kvcalloc ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kvzalloc + kvcalloc ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kvzalloc + kvcalloc ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kvzalloc + kvcalloc ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kvzalloc + kvcalloc ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kvzalloc + kvcalloc ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kvzalloc + kvcalloc ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kvzalloc + kvcalloc ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kvzalloc + kvcalloc ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kvzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kvzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kvzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kvzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kvzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kvzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kvzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kvzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kvzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kvzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kvzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kvzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kvzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kvzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kvzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kvzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kvzalloc(C1 * C2 * C3, ...) | kvzalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kvzalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kvzalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kvzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kvzalloc(sizeof(THING) * C2, ...) | kvzalloc(sizeof(TYPE) * C2, ...) | kvzalloc(C1 * C2 * C3, ...) | kvzalloc(C1 * C2, ...) | - kvzalloc + kvcalloc ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kvzalloc + kvcalloc ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kvzalloc + kvcalloc ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kvzalloc + kvcalloc ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kvzalloc + kvcalloc ( - (E1) * E2 + E1, E2 , ...) | - kvzalloc + kvcalloc ( - (E1) * (E2) + E1, E2 , ...) | - kvzalloc + kvcalloc ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-05-29nfp: abm: report correct MQ statsJakub Kicinski1-0/+24
Report the stat diff to make sure MQ stats add up to child stats. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-29nfp: abm: multi-queue RED offloadJakub Kicinski1-45/+147
Add support for MQ offload and setting RED parameters on queue-by-queue basis. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-29nfp: abm: expose all PF queuesJakub Kicinski1-3/+7
Allocate the PF representor as multi-queue to allow setting the configuration per-queue. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-29nfp: abm: expose the internal stats in ethtoolJakub Kicinski1-0/+51
There is a handful of statistics exposing some internal details of the implementation. Expose those via ethtool. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-29nfp: abm: report statistics from RED offloadJakub Kicinski1-0/+92
Report basic and extended RED statistics back to TC. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-29nfp: abm: add simple RED offloadJakub Kicinski1-0/+82
Offload simple RED configurations. For now support only DCTCP like scenarios where min and max are the same. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-29nfp: abm: enable advanced queuing on demandJakub Kicinski1-0/+11
ABM NIC FW has a cut-through mode where the PCIe queuing is bypassed, thus working like our standard NIC FWs. Use this mode by default and only enable queuing in switchdev mode where users can configure it. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23nfp: use split in naming of PCIe PF portsJakub Kicinski1-0/+2
PCI PFs can host more than one logical endpoint. In NFP terms this means having more than one vNIC for PCIe PF. The vNICs are usually corresponding 1:1 to Ethernet ports. In core NIC we use the legacy idea of vNIC *being* the Ethernet port, hence netdevs put pX(sY) in their phys_port_name, like Ethernet ports would. When ASIC ports are fully represented we need to be able to name different PCIe PF ports, too. Use a scheme similar to Ethernet ports - pfXsY, for PCIe PF number X, sub-port Y. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23nfp: abm: force Ethternet port upJakub Kicinski1-0/+14
Current control firmware does not cater too well to multi-host applications. There is no way to check which hosts are up or otherwise negotiate what the state of the external port (the Ethernet port) should be. Make sure the link is up when driver loads, and don't take it down when Ethernet port netdev is closed. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23nfp: abm: spawn port netdevsJakub Kicinski1-19/+215
To configure buffering points we need full set of netdevs: ASIC user netdev -- | -- PCIe port MAC port -- | -- Configuring egrees qdiscs on user netdev configures standard Linux TC software qdiscs, configuring PCIe port qdiscs will provide a way of setting ASIC queuing parameters for PCIe block. MAC port netdev egress qdiscs correspond to ASIC MAC Traffic Manager block. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23nfp: abm: create project-specific vNIC structureJakub Kicinski1-1/+103
ABM NIC requires more complex vNIC handling, allocate per-vNIC structure. Find out RX queue base and PCI PF id. There will be multiple PFs sharing the same MAC port, therefore the MAC address assigned to the vNIC must be looked up in the HWInfo database. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23nfp: abm: add initial active buffer management NIC skeletonJakub Kicinski1-0/+85
Add a very rudimentary active buffer management NIC support. For now it's like a core NIC without SR-IOV support. Next commits will extend its functionality. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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