- 06 Oct, 2019 21 commits
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David S. Miller authored
Ido Schimmel says: ==================== mlxsw: Query number of modules from firmware Vadim says: The patchset adds support for a new field "num_of_modules" of Management General Peripheral Information Register (MGPIR), providing the maximum number of QSFP modules, which can be supported by the system. It allows to obtain the number of QSFP modules directly from this field, as a static data, instead of old method of getting this info through "network port to QSFP module" mapping. With the old method, in case of port dynamic re-configuration some modules can logically "disappear" as a result of port split operations, which can cause some modules to appear missing. Such scenario can happen on a system equipped with a BMC card, while PCI chip driver at host CPU side can perform some ports "split" or "unsplit" operations, while BMC side I2C chip driver reads the "port-to-module" mapping. Add common API for FW "minor" and "subminor" versions validation and share it between PCI and I2C based drivers. Add FW version validation for "minimal" driver, because use of new field "num_of_modules" in MGPIR register is not backward compatible. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Vadim Pasternak authored
Add validation for FW version in order to prevent driver initialization in case FW version is older than expected. FW version validation is necessary, because use of a new field 'num_of_modules' in MGPIR register is not backward compatible. FW 'minor' and 'subminor' versions are expected to be greater than or equal to 2000 and 1886, respectively. Signed-off-by:
Vadim Pasternak <vadimp@mellanox.com> Acked-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
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Vadim Pasternak authored
Add new API for FW "minor" and "subminor" version validation for sharing it between "spectrum" and "minimal" drivers. Use it in "spectrum" driver. Signed-off-by:
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Vadim Pasternak authored
Use new field "num_of_modules" of MGPIR register for "thermal" interface in order to get the number of modules supported by system directly from the system configuration, instead of getting it from port to module mapping info. Signed-off-by:
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Vadim Pasternak authored
Use new field "num_of_modules" of MGPIR register for "hwmon" interface in order to get the number of modules supported by system directly from the system configuration, instead of getting it from port to module mapping info. Reading this info through MGPIR register is faster and does not depend on possible dynamic re-configuration of ports. In case of port dynamic re-configuration some modules can logically "disappear" as a result of port split and un-spilt operations, which can cause missing of some modules, in case this info is taken from port to module mapping info. Signed-off-by:
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Vadim Pasternak authored
Extend MGPIR - Management General Peripheral Information Register with new field "num_of_modules" exposing the number of modules supported by specific system. Signed-off-by:
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David S. Miller authored
Jiri Pirko says: ==================== netdevsim: allow to test reload failures Allow user to test devlink reload failures: Fail to reload and fail during reload. ==================== Signed-off-by: -
Jiri Pirko authored
Extend netdevsim reload test by simulation of failures. Signed-off-by:
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Jiri Pirko authored
Add flag to disallow reload and another one that causes reload to always fail. Signed-off-by:
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David S. Miller authored
Jiri Pirko says: ==================== net: genetlink: parse attrs for dumpit() callback In generic netlink, parsing attributes for doit() callback is already implemented. They are available in info->attrs. For dumpit() however, each user which is interested in attributes have to parse it manually. Even though the attributes may be (depending on flag) already validated (by parse function). Make usage of attributes in dumpit() more convenient and prepare info->attrs too. Patchset also make the existing users of genl_family_attrbuf() converted to use info->attrs and removes the helper. ==================== Signed-off-by: -
Jiri Pirko authored
Benefit from the fact that the generic netlink code can parse the attrs for dumpit op and avoid need to parse it in the op callback. Signed-off-by:
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Jiri Pirko authored
genl_family_attrbuf() function is no longer used by anyone, so remove it. Signed-off-by:
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Jiri Pirko authored
As this is the last user of genl_family_attrbuf, convert to allocate attrs locally and do it in a similar way this is done in compat_doit(). Signed-off-by:
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Jiri Pirko authored
Benefit from the fact that the generic netlink code can parse the attrs for dumpit op and avoid need to parse it in the op callback. Signed-off-by:
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Jiri Pirko authored
Benefit from the fact that the generic netlink code can parse the attrs for dumpit op and avoid need to parse it in the op callback. Signed-off-by:
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Jiri Pirko authored
Benefit from the fact that the generic netlink code can parse the attrs for dumpit op and avoid need to parse it in the op callback. Signed-off-by:
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Jiri Pirko authored
Extend the dumpit info struct for attrs. Instead of existing attribute validation do parse them and save in the info struct. Caller can benefit from this and does not have to do parse itself. In order to properly free attrs, genl_family pointer needs to be added to dumpit info struct as well. Signed-off-by:
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Jiri Pirko authored
To be re-usable by dumpit as well, push the code that is taking care of attrbuf allocation and parting from doit into separate function. Introduce a helper to free the buffer too. Check family->maxattr too before calling kfree() to be symmetrical with the allocation check. Signed-off-by:
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Jiri Pirko authored
Currently the cb->data is taken by ops during non-parallel dumping. Introduce a new structure genl_dumpit_info and store the ops there. Distribute the info to both non-parallel and parallel dumping. Also add a helper genl_dumpit_info() to easily get the info structure in the dumpit callback from cb. Signed-off-by:
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Jiri Pirko authored
Currently the function genl_family_rcv_msg() is quite big. Since it is quite convenient, push code that is related to doit and dumpit ops into separate functions. Do small changes on the way, like rc/err unification, NULL check etc. Signed-off-by:
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Yi-Hung Wei authored
This patch allows to attach conntrack helper to a confirmed conntrack entry. Currently, we can only attach alg helper to a conntrack entry when it is in the unconfirmed state. This patch enables an use case that we can firstly commit a conntrack entry after it passed some initial conditions. After that the processing pipeline will further check a couple of packets to determine if the connection belongs to a particular application, and attach alg helper to the connection in a later stage. Signed-off-by:
Yi-Hung Wei <yihung.wei@gmail.com> Signed-off-by:
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- 05 Oct, 2019 19 commits
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David S. Miller authored
Jiri Pirko says: ==================== create netdevsim instances in namespace Allow user to create netdevsim devlink and netdevice instances in a network namespace according to the namespace where the user resides in. Add a selftest to test this. ==================== Signed-off-by: -
Jiri Pirko authored
Add a test that creates netdevsim instance inside network namespace and verifies that the related devlink instance and port netdevices reside in the namespace. Signed-off-by:
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Jiri Pirko authored
When user does create new netdevsim instance using sysfs bus file, create the devlink instance and related netdev instance in the namespace of the caller. Signed-off-by:
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Jiri Pirko authored
For newly allocated devlink instance allow drivers to set net struct Signed-off-by:
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David S. Miller authored
Jakub Kicinski says: ==================== net/tls: add ctrl path tracing and statistics This set adds trace events related to TLS offload and basic MIB stats for TLS. First patch contains the TLS offload related trace points. Those are helpful in troubleshooting offload issues, especially around the resync paths. Second patch adds a tracepoint to the fastpath of device offload, it's separated out in case there will be objections to adding fast path tracepoints. Again, it's quite useful for debugging offload issues. Next four patches add MIB statistics. The statistics are implemented as per-cpu per-netns counters. Since there are currently no fast path statistics we could move to atomic variables. Per-CPU seem more common. Most basic statistics are number of created and live sessions, broken out to offloaded and non-offloaded. Users seem to like those a lot. Next there is a statistic for decryption errors. These are primarily useful for device offload debug, in normal deployments decryption errors should not be common. Last but not least a counter for device RX resync. ==================== Reviewed-by:
Simon Horman <simon.horman@netronome.com> Signed-off-by:
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Jakub Kicinski authored
Add a statistic for number of RX resyncs sent down to the NIC. Signed-off-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
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Jakub Kicinski authored
Add a statistic for TLS record decryption errors. Since devices are supposed to pass records as-is when they encounter errors this statistic will count bad records in both pure software and inline crypto configurations. Signed-off-by:
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Jakub Kicinski authored
Add SNMP stats for number of sockets with successfully installed sessions. Break them down to software and hardware ones. Note that if hardware offload fails stack uses software implementation, and counts the session appropriately. Signed-off-by:
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Jakub Kicinski authored
Add a skeleton structure for adding TLS statistics. Signed-off-by:
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Jakub Kicinski authored
Add a tracepoint to the TLS offload's fast path. This tracepoint can be used to track the decrypted and encrypted status of received records. Records decrypted by the device should have decrypted set to 1, records which have neither decrypted nor decrypted set are partially decrypted, require re-encryption and therefore are most expensive to deal with. Signed-off-by:
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Jakub Kicinski authored
Add tracing of device-related interaction to aid performance analysis, especially around resync: tls:tls_device_offload_set tls:tls_device_rx_resync_send tls:tls_device_rx_resync_nh_schedule tls:tls_device_rx_resync_nh_delay tls:tls_device_tx_resync_req tls:tls_device_tx_resync_send Signed-off-by:
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Linus Torvalds authored
Merge tag 'kbuild-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - remove unneeded ar-option and KBUILD_ARFLAGS - remove long-deprecated SUBDIRS - fix modpost to suppress false-positive warnings for UML builds - fix namespace.pl to handle relative paths to ${objtree}, ${srctree} - make setlocalversion work for /bin/sh - make header archive reproducible - fix some Makefiles and documents * tag 'kbuild-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kheaders: make headers archive reproducible kbuild: update compile-test header list for v5.4-rc2 kbuild: two minor updates for Documentation/kbuild/modules.rst scripts/setlocalversion: clear local variable to make it work for sh namespace: fix namespace.pl script to support relative paths video/logo: do not generate unneeded logo C files video/logo: remove unneeded *.o pattern from clean-files integrity: remove pointless subdir-$(CONFIG_...) integrity: remove unneeded, broken attempt to add -fshort-wchar modpost: fix static EXPORT_SYMBOL warnings for UML build kbuild: correct formatting of header in kbuild module docs kbuild: remove SUBDIRS support kbuild: remove ar-option and KBUILD_ARFLAGS
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "Twelve patches mostly small but obvious fixes or cosmetic but small updates" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: qla2xxx: Fix Nport ID display value scsi: qla2xxx: Fix N2N link up fail scsi: qla2xxx: Fix N2N link reset scsi: qla2xxx: Optimize NPIV tear down process scsi: qla2xxx: Fix stale mem access on driver unload scsi: qla2xxx: Fix unbound sleep in fcport delete path. scsi: qla2xxx: Silence fwdump template message scsi: hisi_sas: Make three functions static scsi: megaraid: disable device when probe failed after enabled device scsi: storvsc: setup 1:1 mapping between hardware queue and CPU queue scsi: qedf: Remove always false 'tmp_prio < 0' statement scsi: ufs: skip shutdown if hba is not powered scsi: bnx2fc: Handle scope bits when array returns BUSY or TSF
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Linus Torvalds authored
This makes getdents() and getdents64() do sanity checking on the pathname that it gives to user space. And to mitigate the performance impact of that, it first cleans up the way it does the user copying, so that the code avoids doing the SMAP/PAN updates between each part of the dirent structure write. I really wanted to do this during the merge window, but didn't have time. The conversion of filldir to unsafe_put_user() is something I've had around for years now in a private branch, but the extra pathname checking finally made me clean it up to the point where it is mergable. It's worth noting that the filename validity checking really should be a bit smarter: it would be much better to delay the error reporting until the end of the readdir, so that non-corrupted filenames are still returned. But that involves bigger changes, so let's see if anybody actually hits the corrupt directory entry case before worrying about it further. * branch 'readdir': Make filldir[64]() verify the directory entry filename is valid Convert filldir[64]() from __put_user() to unsafe_put_user()
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Linus Torvalds authored
This has been discussed several times, and now filesystem people are talking about doing it individually at the filesystem layer, so head that off at the pass and just do it in getdents{64}(). This is partially based on a patch by Jann Horn, but checks for NUL bytes as well, and somewhat simplified. There's also commentary about how it might be better if invalid names due to filesystem corruption don't cause an immediate failure, but only an error at the end of the readdir(), so that people can still see the filenames that are ok. There's also been discussion about just how much POSIX strictly speaking requires this since it's about filesystem corruption. It's really more "protect user space from bad behavior" as pointed out by Jann. But since Eric Biederman looked up the POSIX wording, here it is for context: "From readdir: The readdir() function shall return a pointer to a structure representing the directory entry at the current position in the directory stream specified by the argument dirp, and position the directory stream at the next entry. It shall return a null pointer upon reaching the end of the directory stream. The structure dirent defined in the <dirent.h> header describes a directory entry. From definitions: 3.129 Directory Entry (or Link) An object that associates a filename with a file. Several directory entries can associate names with the same file. ... 3.169 Filename A name consisting of 1 to {NAME_MAX} bytes used to name a file. The characters composing the name may be selected from the set of all character values excluding the slash character and the null byte. The filenames dot and dot-dot have special meaning. A filename is sometimes referred to as a 'pathname component'." Note that I didn't bother adding the checks to any legacy interfaces that nobody uses. Also note that if this ends up being noticeable as a performance regression, we can fix that to do a much more optimized model that checks for both NUL and '/' at the same time one word at a time. We haven't really tended to optimize 'memchr()', and it only checks for one pattern at a time anyway, and we really _should_ check for NUL too (but see the comment about "soft errors" in the code about why it currently only checks for '/') See the CONFIG_DCACHE_WORD_ACCESS case of hash_name() for how the name lookup code looks for pathname terminating characters in parallel. Link: https://lore.kernel.org/lkml/20190118161440.220134-2-jannh@google.com/ Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Jann Horn <jannh@google.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by:Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
We really should avoid the "__{get,put}_user()" functions entirely, because they can easily be mis-used and the original intent of being used for simple direct user accesses no longer holds in a post-SMAP/PAN world. Manually optimizing away the user access range check makes no sense any more, when the range check is generally much cheaper than the "enable user accesses" code that the __{get,put}_user() functions still need. So instead of __put_user(), use the unsafe_put_user() interface with user_access_{begin,end}() that really does generate better code these days, and which is generally a nicer interface. Under some loads, the multiple user writes that filldir() does are actually quite noticeable. This also makes the dirent name copy use unsafe_put_user() with a couple of macros. We do not want to make function calls with SMAP/PAN disabled, and the code this generates is quite good when the architecture uses "asm goto" for unsafe_put_user() like x86 does. Note that this doesn't bother with the legacy cases. Nobody should use them anyway, so performance doesn't really matter there. Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) Fix ieeeu02154 atusb driver use-after-free, from Johan Hovold. 2) Need to validate TCA_CBQ_WRROPT netlink attributes, from Eric Dumazet. 3) txq null deref in mac80211, from Miaoqing Pan. 4) ionic driver needs to select NET_DEVLINK, from Arnd Bergmann. 5) Need to disable bh during nft_connlimit GC, from Pablo Neira Ayuso. 6) Avoid division by zero in taprio scheduler, from Vladimir Oltean. 7) Various xgmac fixes in stmmac driver from Jose Abreu. 8) Avoid 64-bit division in mlx5 leading to link errors on 32-bit from Michal Kubecek. 9) Fix bad VLAN check in rtl8366 DSA driver, from Linus Walleij. 10) Fix sleep while atomic in sja1105, from Vladimir Oltean. 11) Suspend/resume deadlock in stmmac, from Thierry Reding. 12) Various UDP GSO fixes from Josh Hunt. 13) Fix slab out of bounds access in tcp_zerocopy_receive(), from Eric Dumazet. 14) Fix OOPS in __ipv6_ifa_notify(), from David Ahern. 15) Memory leak in NFC's llcp_sock_bind, from Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (72 commits) selftests/net: add nettest to .gitignore net: qlogic: Fix memory leak in ql_alloc_large_buffers nfc: fix memory leak in llcp_sock_bind() sch_dsmark: fix potential NULL deref in dsmark_init() net: phy: at803x: use operating parameters from PHY-specific status net: phy: extract pause mode net: phy: extract link partner advertisement reading net: phy: fix write to mii-ctrl1000 register ipv6: Handle missing host route in __ipv6_ifa_notify net: phy: allow for reset line to be tied to a sleepy GPIO controller net: ipv4: avoid mixed n_redirects and rate_tokens usage r8152: Set macpassthru in reset_resume callback cxgb4:Fix out-of-bounds MSI-X info array access Revert "ipv6: Handle race in addrconf_dad_work" net: make sock_prot_memory_pressure() return "const char *" rxrpc: Fix rxrpc_recvmsg tracepoint qmi_wwan: add support for Cinterion CLS8 devices tcp: fix slab-out-of-bounds in tcp_zerocopy_receive() lib: textsearch: fix escapes in example code udp: only do GSO if # of segs > 1 ... -
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 fixes from Vasily Gorbik: - defconfig updates - Fix build errors with CC_OPTIMIZE_FOR_SIZE due to usage of "i" constraint for function arguments. Two kvm changes acked-by Christian Borntraeger. - Fix -Wunused-but-set-variable warnings in mm code. - Avoid a constant misuse in qdio. - Handle a case when cpumf is temporarily unavailable. * tag 's390-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: KVM: s390: mark __insn32_query() as __always_inline KVM: s390: fix __insn32_query() inline assembly s390: update defconfigs s390/pci: mark function(s) __always_inline s390/mm: mark function(s) __always_inline s390/jump_label: mark function(s) __always_inline s390/cpu_mf: mark function(s) __always_inline s390/atomic,bitops: mark function(s) __always_inline s390/mm: fix -Wunused-but-set-variable warnings s390: mark __cpacf_query() as __always_inline s390/qdio: clarify size of the QIB parm area s390/cpumf: Fix indentation in sampling device driver s390/cpumsf: Check for CPU Measurement sampling s390/cpumf: Use consistant debug print format
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