- 20 Aug, 2016 22 commits
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Jacob Keller authored
X722 hardware requires using the admin queue to configure RSS. This function was previously re-written in commit e69ff813 ("i40e: rework the functions to configure RSS with similar parameters"). However, the previous refactor did not work correctly for a few reasons (a) it does not check whether seed is NULL before using it, resulting in a NULL pointer dereference [ 402.954721] BUG: unable to handle kernel NULL pointer dereference at (null) [ 402.955568] IP: [<ffffffffa0090ccf>] i40e_config_rss_aq.constprop.65+0x2f/0x1c0 [i40e] [ 402.956402] PGD ad610067 PUD accc0067 PMD 0 [ 402.957235] Oops: 0000 [#1] SMP [ 402.958064] Modules linked in: ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_filter ebtable_ broute bridge stp llc ebtable_nat ebtables ip6table_mangle ip6table_raw ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv 6 ip6table_security ip6table_filter ip6_tables iptable_mangle iptable_raw iptable_nat nf_conntrack_ipv4_ nf_defrag_ipv4_ nf_nat_ip v4_ nf_nat nf_conntrack iptable_security intel_rapl i86_kg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_clMl crc32_ pclMl ghash_clMlni_intel iTCO_wdt iTCO_vendor_support shpchp sb_edac dcdbas pcspkr joydev ipmi_devintf wmi edac_core ipmi_ssif acpi_ad acpi_ower_meter ipmi_si ipmi_msghandler mei_me nfsd lpc_ich mei ioatdma tpm_tis auth_rpcgss tpm nfs_acl lockd grace s unrpc ifs nngag200 i2c_algo_bit drm_kms_helper ttm drm iigbe bnx2x i40e dca mdio ptp pps_core libcrc32c fjes crc32c_intel [ 402.965563] CPU: 22 PID: 2461 Conm: ethtool Not tainted 4.6.0-rc7_1.2-ABNidQ+ #20 [ 402.966719] Hardware name: Dell Inc. PowerEdge R720/0C4Y3R, BIOS 2.5.2 01/28/2015 [ 402.967862] task: ffff880219b51dc0 ti: ffff8800b3408000 task.ti: ffff8800b3408000 [ 402.969046] RIP: 0010:[<ffffffffa0090ccf>] [<ffffffffa0090ccf>] i40e_config_rss_aq.constprop.65+0x2f/0x1c0 [i40e] [ 402.970339] RSP: 0018:ffff8800b340ba90 EFLAGS: 00010246 [ 402.971616] RAX: 0000000000000000 RBX: ffff88042ec14000 RCX: 0000000000000200 [ 402.972961] RDX: ffff880428eb9200 RSI: 0000000000000000 RDI: ffff88042ec14000 [ 402.974312] RBP: ffff8800b340baf8 R08: ffff880237ada8f0 R09: ffff880428eb9200 [ 402.975709] R10: ffff880428eb9200 R11: 0000000000000000 R12: ffff88042ec2e000 [ 402.977104] R13: ffff88042ec2e000 R14: ffff88042ec14000 R15: ffff88022ea00800 [ 402.978541] FS: 00007f84fd054700(0000) GS:ffff880237ac0000(0000) knlGS:0000000000000000 [ 402.980003] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 402.981508] CR2: 0000000000000000 CR3: 000000003289e000 CR4: 00000000000406e0 [ 402.983028] Stack: [ 402.984578] 0000000002000200 0000000000000000 ffff88023ffeda68 ffff88023ffef000 [ 402.986187] 0000000000000268 ffff8800b340bbf8 ffff88023ffedd80 0000000088ce4f1d [ 402.987844] ffff88042ec14000 ffff88022ea00800 ffff88042ec2e000 ffff88042ec14000 [ 402.989509] Call Trace: [ 402.991200] [<ffffffffa009636f>] i40e_config_rss+0x11f/0x1c0 [i40e] [ 402.992924] [<ffffffffa00a1ae0>] i40e_set_rifh+0ic0/0x130 [i40e] [ 402.994684] [<ffffffff816d54b7>] ethtool_set_rifh+0x1f7/0x300 [ 402.996446] [<ffffffff8136d02b>] ? cred_has_capability+0io6b/0x100 [ 402.998203] [<ffffffff8136d102>] ? selinux_capable+0x12/0x20 [ 402.999968] [<ffffffff8136277b>] ? security_capable+0x4b/0x70 [ 403.001707] [<ffffffff816d6da3>] dev_ethtool+0x1423/0x2290 [ 403.003461] [<ffffffff816eab41>] dev_ioctl+0x191/0io630 [ 403.005186] [<ffffffff811cf80a>] ? lru_cache_add+0x3a/0i80 [ 403.006942] [<ffffffff817f2a8e>] ? _raw_spin_unlock+0ie/0x20 [ 403.008691] [<ffffffff816adb95>] sock_do_ioctl+0x45/0i50 [ 403.010421] [<ffffffff816ae229>] sock_ioctl+0x209/0x2d0 [ 403.012173] [<ffffffff81262194>] do_vfs_ioctl+0u4/0io6c0 [ 403.013911] [<ffffffff81262829>] SyS_ioctl+0x79/0x90 [ 403.015710] [<ffffffff817f2e72>] entry_SYSCALL_64_fastpath+0x1a/0u4 [ 403.017500] Code: 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 89 fb 48 83 ec 40 4c 8b a7 e0 05 00 00 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 <48> 8b 06 41 0f b7 bc 24 f2 0f 00 00 48 89 45 9c 48 8b 46 08 48 [ 403.021454] RIP [<ffffffffa0090ccf>] i40e_config_rss_aq.constprop.65+0x2f/0x1c0 [i40e] [ 403.023395] RSP <ffff8800b340ba90> [ 403.025271] CR2: 0000000000000000 [ 403.027169] ---[ end trace 64561b528cf61cf0 ]--- (b) it does not even bother to use the passed in *lut parameter which defines the requested lookup table. Instead it uses its own round robin table. Fix these issues by re-writing it to be similar to i40e_config_rss_reg and i40e_get_rss_aq. Fixes: e69ff813 ("i40e: rework the functions to configure RSS with similar parameters", 2015-10-21) Signed-off-by:
Jacob Keller <jacob.e.keller@intel.com> Tested-by:
Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Jacob Keller authored
Move this function below the two functions related to configuring RSS via the admin queue. This helps co-locate the two functions, and made it easier to spot a bug in the first i40e_config_rss_aq function as compared to the i40e_get_rss_aq function. Signed-off-by:
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Vegard Nossum authored
We've already set sk to sock->sk and dereferenced it, so if it's NULL we would have crashed already. Moreover, if it was NULL we would have crashed anyway when jumping to 'out' and trying to unlock the sock. Furthermore, if we had assigned a different value to 'sk' we would have been calling lock_sock() and release_sock() on different sockets. My conclusion is that these two lines are complete nonsense and only serve to confuse the reader. Signed-off-by:
Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Yuval Mintz authored
This new firmware for the qed* adpaters fixes several issues: - Better blocking of malicious VFs. - After FLR, Tx-switching [internal routing] of packets might be incorrect. - Deletion of unicast MAC filters would sometime have side-effect of corrupting the MAC filters configred for a device. It also contains fixes for future qed* drivers that *hopefully* would be sent for review in the near future. In addition, it would allow driver some new functionality, including: - Allowing PF/VF driver compaitibility with old drivers [running pre-8.10.5.0 firmware]. - Better debug facilities. This would also bump the qed* driver versions to 8.10.9.20. Signed-off-by:
Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queueDavid S. Miller authored
Jeff Kirsher says: ==================== 10GbE Intel Wired LAN Driver Updates 2016-08-18 This series contains updates to ixgbe and ixgbevf. Emil cleans up confusing amongst the users by making an error message into a debug message, since the TXDCTL.ENABLE (and comparable VFTXDCTL.ENABLE for ixgbevf) bit is set only when the transmit queue is actually enabled, which may not happen during the configure phase eve if we waited for it. Converts to using netdev_dbg() macro instead of our home brewed macro for ixgbevf. Converted the service task to use atomic bitwise operations when setting and checking reset requests to reduce the possibility of race conditions. ==================== Signed-off-by: -
David S. Miller authored
Florian Fainelli says: ==================== net: dsa: bcm_sf2: Platform conversion This patch series converts the bcm_sf2 driver from a traditional DSA driver into a platform_device driver and makes it use the new DSA binding that Andrew introduced in the latest merge window. Prior attempts used to coerce the code in net/dsa/dsa2.c to accept the old binding, while really there is only one broken single user out there: bcm_sf2, so instead, just assume the new DT binding is deployed and use it accordingly. ==================== Signed-off-by: -
Florian Fainelli authored
Remove our dsa_switch_driver::drv_probe callback to prevent probing through the old DSA binding, not that this could happen anymore now that we have moved the matching compatible string from net/dsa/dsa.c to drivers/net/dsa/bcm_sf2.c, so this is essentially dead code. Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Florian Fainelli authored
Now that we have converted the drivers into a proper platform device driver, we can use the device managed helper functions to simplify the error paths a bit wrt. register resources and IRQs. Signed-off-by:
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Florian Fainelli authored
The Broadcom Starfighter 2 switch driver should be a proper platform driver, now that the DSA code has been updated to allow that, register a switch device, feed it with the proper configuration data coming from Device Tree and register our switch device with DSA. The bulk of the changes consist in moving what bcm_sf2_sw_setup() did into the platform driver probe function. Signed-off-by:
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Florian Fainelli authored
Document the updated binding which conforms to the new DSA binding in net/dsa/dsa.txt. Signed-off-by:
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Florian Fainelli authored
In preparation for allowing switch drivers to implement system-wide suspend/resume functions, export dsa_switch_suspend and dsa_switch_resume() such that these are callable from the appropriate driver specific suspend/resume functions. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Tested-by:
Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by:
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David S. Miller authored
Andrew Lunn says: ==================== Fix mv88e6xxx wait function The mv88e6xxx wait function can be upset of the system has nots of other things to do and a sleep takes a lot longer than expected. Fix this be using a fixed number of iterations, rather than a fixed walkclock time. Witht that change made, it is possible to consoliate another wait function. A wait actually timing out should not happen and when it does, it means something serious is wrong. Make sure an error is logged, since not all callers will log an error. ==================== Reviewed-by:
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Andrew Lunn authored
When mv88e6xxx_wait() returns a timeout, something bad has happened. Make sure it is noticed by logging an error. Signed-off-by:
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Andrew Lunn authored
Now that mv88e6xx_wait() iterated on a counter than a fixed time interval, it implements the same mechanism as mv88e6xxx_update() uses. So use it in mv88e6xx_wait(). Signed-off-by:
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Andrew Lunn authored
The mv88e6xxx driver times out operations on the switch based on looping until an elapsed wall clock time is reached. However, if usleep_range() sleeps much longer than expected, it could timeout with an error without actually checking to see if the devices has completed the operation. So replace the elapsed time with a fixed upper bound on the number of loops. Testing on various switches has shown that switches takes either 0 or 1 iteration, so a maximum of 16 iterations is a safe limit. Signed-off-by:
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David S. Miller authored
Andrew Lunn says: ==================== PHY Kconfig and Makefile cleanup The Ethernet PHY directory has slowly been getting more entries. Split the entries in the Makefile and Kconfig into MDIO bus drivers and PHYs. Within these two groups, sort them. This should reduce merge conflicts and aid finding what one searches for. The Kconfig text contains redundant "Driver for" and "Support for" which add little value, make the vendor less obvious, and defeat the shortcut key in the menu. Remove such text. ==================== Signed-off-by: -
Andrew Lunn authored
Remove the redundant "Support for" and "Drivers for" from the Kconfig short description. This makes the manufacture much more prominent in the list and makes the shortcut keys useful. Signed-off-by:
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Andrew Lunn authored
Sort the files to reduce merge conflicts and to make it easier to find drivers by name. Also separate the MDIO bus drivers from the PHY drivers, again to help find what you need. Signed-off-by:
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Eric Dumazet authored
Fixes following sparse errors : net/ipv4/fib_semantics.c:1579:61: warning: incorrect type in argument 2 (different base types) net/ipv4/fib_semantics.c:1579:61: expected unsigned int [unsigned] [usertype] key net/ipv4/fib_semantics.c:1579:61: got restricted __be32 const [usertype] nh_gw Fixes: a6db4494 ("net: ipv4: Consider failed nexthops in multipath routes") Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Eric Dumazet authored
Include ipv4_rcv_saddr_equal() definition to avoid this sparse error : net/ipv4/udp.c:362:5: warning: symbol 'ipv4_rcv_saddr_equal' was not declared. Should it be static? Signed-off-by:
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Eric Dumazet authored
After commit 19689e38 ("tcp: md5: use kmalloc() backed scratch areas") this function is no longer used. Signed-off-by:
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Thomas Falcon authored
An upcoming feature of IBM VNIC protocol is the ability to configure redundant backing devices for a VNIC client. In case of a failure on the current backing device, the driver will receive a signal from the hypervisor indicating that a failover will occur. The driver will then wait for a message from the backing device before establishing a new connection. Signed-off-by:
Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by:
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- 19 Aug, 2016 18 commits
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oulijun authored
It added reset function for RoCE driver. RoCE is a feature of hns. In hip06 SoC, in RoCE reset process, it's needed to configure dsaf channel reset, port and sl map info. Reset function of RoCE is located in dsaf module, we only call it in RoCE driver when needed. This patch is used to fix the conflict, please refer to this link: https://www.spinics.net/lists/linux-rdma/msg39114.htmlSigned-off-by:
Wei Hu <xavier.huwei@huawei.com> Signed-off-by:
Nenglong Zhao <zhaonenglong@hisilicon.com> Signed-off-by:
Lijun Ou <oulijun@huawei.com> Signed-off-by:
Sheng Li <lisheng011@huawei.com> Reviewed-by:
Yisen Zhuang <yisen.zhuang@huawei.com> Signed-off-by:
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David S. Miller authored
Herbert Xu says: ==================== rhashtable: Get rid of raw table walkers part 1 This series starts the process of getting rid of all raw rhashtable walkers (e.g., using any of the rht_for_each helpers) from the kernel. We need to do this before I can fix the resize kmalloc failure issue by using multi-layered tables. We should do this anyway because almost all raw table walkers are already buggy in that they don't handle multiple rhashtables during a resize. ==================== Dave/Tomas, please keep an eye out for any new patches that try to introduce raw table walkers and nack them. Signed-off-by: -
Herbert Xu authored
This patch converts the diag dumping code to use the rhashtable walk code instead of going through rhashtable by hand. The lock nl_table_lock is now only taken while we process the multicast list as it's not needed for the rhashtable walk. Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Herbert Xu authored
As I'm working actively on rhashtable it helps if people CCed me when they work on in. Signed-off-by:
Thomas Graf <tgraf@suug.ch> Signed-off-by:
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Herbert Xu authored
The commit 8f6fd83c ("rhashtable: accept GFP flags in rhashtable_walk_init") added a GFP flag argument to rhashtable_walk_init because some users wish to use the walker in an unsleepable context. In fact we don't need to allocate memory in rhashtable_walk_init at all. The walker is always paired with an iterator so we could just stash ourselves there. This patch does that by introducing a new enter function to replace the existing init function. This way we don't have to churn all the existing users again. Signed-off-by:
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David S. Miller authored
Hariprasad Shenai says: ==================== crypto/chcr: Add support for Chelsio Crypto Driver This patch series adds support for Chelsio Crypto driver. The patch series has been created against net-next tree and includes patches for Chelsio Low Level Driver(cxgb4) and adds the new crypto Upper Layer Driver(chcr) under a new directory drivers/crypto/chelsio. Patch 1/4 ("cxgb4: Add support for dynamic allocation of resources for ULD") adds support for dynamic allocation of resources for ULD. The objective of this patch is to provide generic interface for upper layer drivers to allocate and initialize hardware resources. The present cxgb4 (network driver) apart from network functionality, also initializes hardware and thus acts as lower layer driver for other drivers to use hardware resources. Thus it acts as both a Low level driver for Upper layer driver's like iw_cxgb4, cxgb4i and cxgb4it and a Network Driver. Right now the allocation of resources for Upper layer driver's is done statically. Patch 1/4 adds a new infrastructure for dynamic allocation of resources. cxgb4 will read the hardware capability through firmware and allocate/free the queues for Upper layer drivers when the respective driver's are loaded and freed when unloaded. Patch 2/3, 3/4 and 4/4 adds support for Chelsio Crypto Driver. The Crypto driver will act as another ULD on top of cxgb4. In this patch series, the ULD API framework is used only by crypto and other ULD's will make use of it in the next series. This patch series is only for review, if this looks ok we will test it thoroughly and send request for merge. We have included all the maintainers of respective drivers. Kindly review the changes and provide feedback on the same. V3: - Removed crypto queues from cxgb4 and added support for dynamic allocation of resources for Upper layer drivers - Dependency fix in Kconfig. V2: - Some residual code cleanup - Adds pr_fmt with chcr (KBUILD_MODNAME) added - Changes var name to accomodate them <80 columns in the chcr_register_alg - Support for printing the crypto queue stats - Fix compile warnings reported by kbuild bot for certain architectures - Dependency fix in Kconfig. - If the request has the MAY_BACKLOG bit set and hardware queue is full the request is queued up else -EBUSY is returned to throttle the user. The queue when executed and processed returns -EINPROGRESS in completion. ==================== Signed-off-by: -
Hariprasad Shenai authored
Adds the config entry for the Chelsio Crypto Driver, Makefile changes for the same. Signed-off-by:
Atul Gupta <atul.gupta@chelsio.com> Signed-off-by:
Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by:
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Hariprasad Shenai authored
The Chelsio's Crypto Hardware can perform the following operations: SHA1, SHA224, SHA256, SHA384 and SHA512, HMAC(SHA1), HMAC(SHA224), HMAC(SHA256), HMAC(SHA384), HAMC(SHA512), AES-128-CBC, AES-192-CBC, AES-256-CBC, AES-128-XTS, AES-256-XTS This patch implements the driver for above mentioned features. This driver is an Upper Layer Driver which is attached to Chelsio's LLD (cxgb4) and uses the queue allocated by the LLD for sending the crypto requests to the Hardware and receiving the responses from it. The crypto operations can be performed by Chelsio's hardware from the userspace applications and/or from within the kernel space using the kernel's crypto API. The above mentioned crypto features have been tested using kernel's tests mentioned in testmgr.h. They also have been tested from user space using libkcapi and Openssl. Signed-off-by:
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Hariprasad Shenai authored
Signed-off-by:
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Hariprasad Shenai authored
Add a new commmon infrastructure to allocate reosurces dynamically to Upper layer driver's(ULD) when they register with cxgb4 driver and free them during unregistering. All the queues and the interrupts for them will be allocated during ULD probe only and freed during remove. Signed-off-by:
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LABBE Corentin authored
The data member of structure firmware is const and this constness is dropped by some cast. This patch add some const for keeping the const information. Signed-off-by:
LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by:
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David S. Miller authored
Daniel Borkmann says: ==================== BPF helper improvements and cleanups This set adds various improvements to BPF helpers, a cleanup to use skb_pkt_type_ok() helper, addition of bpf_skb_change_tail(), a follow up for event output helper and removing ifdefs around the cgroupv2 helper bits. For details please see individual patches. The set is based against net-next tree, but requires a merge of net into net-next first. Thanks a lot! ==================== Signed-off-by: -
Daniel Borkmann authored
As recently discussed during the task_under_cgroup_hierarchy() addition, we should get rid of the ifdefs surrounding the bpf_skb_under_cgroup() helper. If related functionality is not built-in, the helper cannot be used anyway, which is also in line with what we do for all other helpers. Signed-off-by:
Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
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Daniel Borkmann authored
Follow-up to 555c8a86 ("bpf: avoid stack copy and use skb ctx for event output") for also adding the event output helper for XDP typed programs. The event output helper has been very useful in particular for debugging or event notification purposes, since it's much faster and flexible than regular trace printk due to programmatically being able to attach meta data. Same flags structure applies as with tc BPF programs. Signed-off-by:
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Daniel Borkmann authored
This work adds a bpf_skb_change_tail() helper for tc BPF programs. The basic idea is to expand or shrink the skb in a controlled manner. The eBPF program can then rewrite the rest via helpers like bpf_skb_store_bytes(), bpf_lX_csum_replace() and others rather than passing a raw buffer for writing here. bpf_skb_change_tail() is really a slow path helper and intended for replies with f.e. ICMP control messages. Concept is similar to other helpers like bpf_skb_change_proto() helper to keep the helper without protocol specifics and let the BPF program mangle the remaining parts. A flags field has been added and is reserved for now should we extend the helper in future. Signed-off-by:
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Daniel Borkmann authored
Since we have a skb_pkt_type_ok() helper for checking the type before mangling, make use of it instead of open coding. Follow-up to commit 8b10cab6 ("net: simplify and make pkt_type_ok() available for other users") that came in after d2485c42 ("bpf: add bpf_skb_change_type helper"). Signed-off-by:
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Richard Alpe authored
Add TIPC_NL_PEER_REMOVE netlink command. This command can remove an offline peer node from the internal data structures. This will be supported by the tipc user space tool in iproute2. Signed-off-by:
Richard Alpe <richard.alpe@ericsson.com> Reviewed-by:
Jon Maloy <jon.maloy@ericsson.com> Acked-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
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Eric Dumazet authored
Over the years, TCP BDP has increased a lot, and is typically in the order of ~10 Mbytes with help of clever Congestion Control modules. In presence of packet losses, TCP stores incoming packets into an out of order queue, and number of skbs sitting there waiting for the missing packets to be received can match the BDP (~10 Mbytes) In some cases, TCP needs to make room for incoming skbs, and current strategy can simply remove all skbs in the out of order queue as a last resort, incurring a huge penalty, both for receiver and sender. Unfortunately these 'last resort events' are quite frequent, forcing sender to send all packets again, stalling the flow and wasting a lot of resources. This patch cleans only a part of the out of order queue in order to meet the memory constraints. Signed-off-by:
Soheil Hassas Yeganeh <soheil@google.com> Acked-by:
Yuchung Cheng <ycheng@google.com> Acked-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
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