- 04 May, 2018 13 commits
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Eric Dumazet authored
While trying to support CHECKSUM_COMPLETE for IPV6 fragments, I had to experiments various hacks in get_fixed_ipv6_csum(). I must admit I could not find how to implement this :/ However, get_fixed_ipv6_csum() does a lot of redundant operations, calling csum_partial() twice. First csum_partial() computes the checksum of saddr and daddr, put in @csum_pseudo_hdr. Undone later in the second csum_partial() computed on whole ipv6 header. Then nexthdr is added once, added a second time, then substracted. payload_len is added once, then substracted. Really all this can be reduced to two add_csum(), to add back 6 bytes that were removed by mlx4 when providing hw_checksum in RX descriptor. Signed-off-by:
Eric Dumazet <edumazet@google.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Tariq Toukan <tariqt@mellanox.com> Reviewed-by:
Saeed Mahameed <saeedm@mellanox.com> Acked-by:
Tariq Toukan <tariqt@mellanox.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Ursula Braun says: ==================== net/smc: splice implementation Stefan comes up with an smc implementation for splice(). The first three patches are preparational patches, the 4th patch implements splice(). ==================== Signed-off-by: -
Stefan Raspl authored
Provide an implementation for splice() when we are using SMC. See smc_splice_read() for further details. Signed-off-by:
Stefan Raspl <raspl@linux.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>< Signed-off-by:
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Stefan Raspl authored
Preparatory work for splice() support. Signed-off-by:
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Stefan Raspl authored
Turn smc_rx_wait_data into a generic function that can be used at various instances to wait on traffic to complete with varying criteria. Signed-off-by:
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Stefan Raspl authored
Some of the conditions to exit recv() are common in two pathes - cleaning up code by moving the check up so we have it only once. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller authored
Overlapping changes in selftests Makefile. Signed-off-by: -
David S. Miller authored
Sergei Shtylyov says: ==================== sh_eth: complain on access to unimplemented TSU registers Here's a set of 2 patches against DaveM's 'net-next.git' repo. The 1st patch routes TSU_POST<n> register accesses thru sh_eth_tsu_{read|write}() and the 2nd added WARN_ON() unimplemented register to those functions. I'm going to deal with TSU_ADR{H|L}<n> registers in a later series... ==================== Signed-off-by: -
Sergei Shtylyov authored
Commit 3365711d ("sh_eth: WARN on access to a register not implemented in a particular chip") added WARN_ON() to sh_eth_{read|write}() but not to sh_eth_tsu_{read|write}(). Now that we've routed almost all TSU register accesses (except TSU_ADR{H|L}<n> -- which are special) thru the latter pair of accessors, it makes sense to check for the unimplemented TSU registers as well... Signed-off-by:
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by:
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Sergei Shtylyov authored
There's no particularly good reason TSU_POST<n> registers get accessed circumventing sh_eth_tsu_{read|write}() -- start using those, removing (badly named) sh_eth_tsu_get_post_reg_offset(), while at it... Signed-off-by: -
Linus Torvalds authored
Merge tag 'linux-kselftest-4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: "This Kselftest update for 4.17-rc4 consists of a fix for a syntax error in the script that runs selftests. Mathieu Desnoyers found this bug in the script on systems running GNU Make 3.8 or older" * tag 'linux-kselftest-4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: Fix lib.mk run_tests target shell script
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) Various sockmap fixes from John Fastabend (pinned map handling, blocking in recvmsg, double page put, error handling during redirect failures, etc.) 2) Fix dead code handling in x86-64 JIT, from Gianluca Borello. 3) Missing device put in RDS IB code, from Dag Moxnes. 4) Don't process fast open during repair mode in TCP< from Yuchung Cheng. 5) Move address/port comparison fixes in SCTP, from Xin Long. 6) Handle add a bond slave's master into a bridge properly, from Hangbin Liu. 7) IPv6 multipath code can operate on unitialized memory due to an assumption that the icmp header is in the linear SKB area. Fix from Eric Dumazet. 8) Don't invoke do_tcp_sendpages() recursively via TLS, from Dave Watson. 9) Fix memory leaks in x86-64 JIT, from Daniel Borkmann. 10) RDS leaks kernel memory to userspace, from Eric Dumazet. 11) DCCP can invoke a tasklet on a freed socket, take a refcount. Also from Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (78 commits) dccp: fix tasklet usage smc: fix sendpage() call net/smc: handle unregistered buffers net/smc: call consolidation qed: fix spelling mistake: "offloded" -> "offloaded" net/mlx5e: fix spelling mistake: "loobpack" -> "loopback" tcp: restore autocorking rds: do not leak kernel memory to user land qmi_wwan: do not steal interfaces from class drivers ipv4: fix fnhe usage by non-cached routes bpf: sockmap, fix error handling in redirect failures bpf: sockmap, zero sg_size on error when buffer is released bpf: sockmap, fix scatterlist update on error path in send with apply net_sched: fq: take care of throttled flows before reuse ipv6: Revert "ipv6: Allow non-gateway ECMP for IPv6" bpf, x64: fix memleak when not converging on calls bpf, x64: fix memleak when not converging after image net/smc: restrict non-blocking connect finish 8139too: Use disable_irq_nosync() in rtl8139_poll_controller() sctp: fix the issue that the cookie-ack with auth can't get processed ... -
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linuxLinus Torvalds authored
Pull parisc fixes from Helge Deller: "Fix two section mismatches, convert to read_persistent_clock64(), add further documentation regarding the HPMC crash handler and make bzImage the default build target" * 'parisc-4.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix section mismatches parisc: drivers.c: Fix section mismatches parisc: time: Convert read_persistent_clock() to read_persistent_clock64() parisc: Document rules regarding checksum of HPMC handler parisc: Make bzImage default build target
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- 03 May, 2018 27 commits
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Eric Dumazet authored
syzbot reported a crash in tasklet_action_common() caused by dccp. dccp needs to make sure socket wont disappear before tasklet handler has completed. This patch takes a reference on the socket when arming the tasklet, and moves the sock_put() from dccp_write_xmit_timer() to dccp_write_xmitlet() kernel BUG at kernel/softirq.c:514! invalid opcode: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 17 Comm: ksoftirqd/1 Not tainted 4.17.0-rc3+ #30 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:tasklet_action_common.isra.19+0x6db/0x700 kernel/softirq.c:515 RSP: 0018:ffff8801d9b3faf8 EFLAGS: 00010246 dccp_close: ABORT with 65423 bytes unread RAX: 1ffff1003b367f6b RBX: ffff8801daf1f3f0 RCX: 0000000000000000 RDX: ffff8801cf895498 RSI: 0000000000000004 RDI: 0000000000000000 RBP: ffff8801d9b3fc40 R08: ffffed0039f12a95 R09: ffffed0039f12a94 dccp_close: ABORT with 65423 bytes unread R10: ffffed0039f12a94 R11: ffff8801cf8954a3 R12: 0000000000000000 R13: ffff8801d9b3fc18 R14: dffffc0000000000 R15: ffff8801cf895490 FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2bc28000 CR3: 00000001a08a9000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tasklet_action+0x1d/0x20 kernel/softirq.c:533 __do_softirq+0x2e0/0xaf5 kernel/softirq.c:285 dccp_close: ABORT with 65423 bytes unread run_ksoftirqd+0x86/0x100 kernel/softirq.c:646 smpboot_thread_fn+0x417/0x870 kernel/smpboot.c:164 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 Code: 48 8b 85 e8 fe ff ff 48 8b 95 f0 fe ff ff e9 94 fb ff ff 48 89 95 f0 fe ff ff e8 81 53 6e 00 48 8b 95 f0 fe ff ff e9 62 fb ff ff <0f> 0b 48 89 cf 48 89 8d e8 fe ff ff e8 64 53 6e 00 48 8b 8d e8 RIP: tasklet_action_common.isra.19+0x6db/0x700 kernel/softirq.c:515 RSP: ffff8801d9b3faf8 Fixes: dc841e30 ("dccp: Extend CCID packet dequeueing interface") Signed-off-by:
syzbot <syzkaller@googlegroups.com> Cc: Gerrit Renker <gerrit@erg.abdn.ac.uk> Cc: dccp@vger.kernel.org Signed-off-by:
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David S. Miller authored
Ursula Braun says: ==================== net/smc: fixes 2018/05/03 here are smc fixes for 2 problems: * receive buffers in SMC must be registered. If registration fails these buffers must not be kept within the link group for reuse. Patch 1 is a preparational patch; patch 2 contains the fix. * sendpage: do not hold the sock lock when calling kernel_sendpage() or sock_no_sendpage() ==================== Signed-off-by: -
Stefan Raspl authored
The sendpage() call grabs the sock lock before calling the default implementation - which tries to grab it once again. Signed-off-by:
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Karsten Graul authored
When smc_wr_reg_send() fails then tag (regerr) the affected buffer and free it in smc_buf_unuse(). Signed-off-by:
Karsten Graul <kgraul@linux.ibm.com> Signed-off-by:
Ursula Braun <ubraun@linux.ibm.com> Signed-off-by:
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Karsten Graul authored
Consolidate the call to smc_wr_reg_send() in a new function. No functional changes. Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in DP_NOTICE message Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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David S. Miller authored
Petr Machata says: ==================== bridge: FDB: Notify about removal of non-user-added entries Device drivers may generally need to keep in sync with bridge's FDB. In particular, for its offload of tc mirror action where the mirrored-to device is a gretap device, mlxsw needs to listen to a number of events, FDB events among the others. SWITCHDEV_FDB_{ADD,DEL}_TO_DEVICE would be a natural notification in that case. However, for removal of FDB entries added due to device activity (as opposed to explicit addition through "bridge fdb add" or similar), there are no notifications. Thus in patch #1, add the "added_by_user" field to switchdev notifications sent for FDB activity. Adapt drivers to ignore activity on non-user-added entries, to maintain the current behavior. Specifically in case of mlxsw, allow mlxsw_sp_span_respin() call for any and all FDB updates. In patch #2, change the bridge driver to actually emit notifications for these FDB entries. Take care not to send notification for bridge updates that itself originate in SWITCHDEV_FDB_*_TO_BRIDGE events. Changes from v1 to v2: - Instead of introducing a new variant of fdb_delete(), add a new parameter to the existing function. - Name the parameter swdev_notify, not notify. ==================== Signed-off-by: -
Petr Machata authored
Do not automatically bail out on sending notifications about activity on non-user-added FDB entries. Instead, notify about this activity except for cases where the activity itself originates in a notification, to avoid sending duplicate notifications. Signed-off-by:
Petr Machata <petrm@mellanox.com> Acked-by:
Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Acked-by:
Ivan Vecera <ivecera@redhat.com> Signed-off-by:
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Petr Machata authored
The following patch enables sending notifications also for events on FDB entries that weren't added by the user. Give the drivers the information necessary to distinguish between the two origins of FDB entries. To maintain the current behavior, have switchdev-implementing drivers bail out on notifications about non-user-added FDB entries. In case of mlxsw driver, allow a call to mlxsw_sp_span_respin() so that SPAN over bridge catches up with the changed FDB. Signed-off-by:
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David S. Miller authored
Ido Schimmel says: ==================== mlxsw: Introduce support for CQEv1/2 Jiri says: Current SwitchX2 and Spectrum FWs support CQEv0 and that is what we implement in mlxsw. Spectrum FW also supports CQE v1 and v2. However, Spectrum-2 won't support CQEv0. Prepare for it and setup the CQE versions to use according to what is queried from FW. ==================== Signed-off-by: -
Jiri Pirko authored
Check number of CQEs for CQE version 2 reported by QUERY_AQ_CAP command. Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
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Jiri Pirko authored
Use previously added resources to query FW support for multiple versions of CQEs. Use the biggest version supported. For SDQs, it has no sense to use version 2 as it does not introduce any new features, but it is twice the size of CQE version 1. Signed-off-by:
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Jiri Pirko authored
Introduce definitions of fields in CQE version 1 and 2. Also, introduce common helpers that would call appropriate version-specific helpers according to the version enum passed. Signed-off-by:
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Jiri Pirko authored
Add resources that FW uses to report supported CQE versions. Signed-off-by:
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Nikolay Aleksandrov authored
While handling netdevice events, br_device_event() sometimes uses br_stp_(disable|enable)_port which unconditionally send a notification, but then a second notification for the same event is sent at the end of the br_device_event() function. To avoid sending duplicate notifications in such cases, check if one has already been sent (i.e. br_stp_enable/disable_port have been called). The patch is based on a change by Satish Ashok. Signed-off-by:
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David S. Miller authored
Petr Machata says: ==================== selftests: forwarding: Updates to sysctl handling Some selftests need to adjust sysctl settings. In order to be neutral to the system that the test is run on, it is a good practice to change back to the original setting after the test ends. That involves some boilerplate that can be abstracted away. In patch #1, introduce two functions, sysctl_set() and sysctl_restore(). The former stores the current value of a given setting, and sets a new value. The latter restores the setting to the previously-stored value. In patch #2, use these wrappers in a number of tests. Additionally in patch #3, fix a problem in mirror_gre_nh.sh, which neglected to set a sysctl that's crucial for the test to work. ==================== Signed-off-by: -
Petr Machata authored
The test fails to work if reverse-path filtering is in effect on the mirrored-to host interface, or for all interfaces. Signed-off-by:
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Petr Machata authored
Instead of hand-managing the sysctl set and restore, use the wrappers sysctl_set() and sysctl_restore() to do the bookkeeping automatically. Signed-off-by:
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Petr Machata authored
Add two helper functions: sysctl_set() to change the value of a given sysctl setting, and sysctl_restore() to change it back to what it was. Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in netdev_err error message Signed-off-by:
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David S. Miller authored
Ido Schimmel says: ==================== selftests: forwarding: Two enhancements First patch increases the maximum deviation in the multipath tests which proved to be too low in some cases. Second patch allows user to run only specific tests from each file using the TESTS environment variable. This granularity is needed in setups where not all the tests can pass. ==================== Signed-off-by: -
Ido Schimmel authored
Similar to commit a511858c ("selftests: fib_tests: Allow user to run a specific test"), allow user to run only a subset of the tests using the TESTS environment variable. This is useful when not all the tests can pass on a given system. Example: # export TESTS="ping_ipv4 ping_ipv6" # ./bridge_vlan_aware.sh TEST: ping [PASS] TEST: ping6 [PASS] Signed-off-by:
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Ido Schimmel authored
We sometimes observe failures in the test due to too large discrepancy between the measured and expected ratios. For example: TEST: ECMP [FAIL] Too large discrepancy between expected and measured ratios INFO: Expected ratio 1.00 Measured ratio 1.11 Fix this by allowing an up to 15% deviation between both ratios. Another possibility is to increase the number of generated flows, but this will prolong the execution time of the test, which is already quite high. Signed-off-by: -
Ganesh Goudar authored
Change t4fw_version.h to update latest firmware version number to 1.19.1.0. Signed-off-by:
Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by:
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git://git.infradead.org/users/hch/dma-mappingLinus Torvalds authored
Pull dma-mapping fix from Christoph Hellwig: "Fix an incorrect warning selection introduced in the last merge window" * tag 'dma-mapping-4.17-4' of git://git.infradead.org/users/hch/dma-mapping: swiotlb: fix inversed DMA_ATTR_NO_WARN test
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Eric Dumazet authored
When adding rb-tree for TCP retransmit queue, we inadvertently broke TCP autocorking. tcp_should_autocork() should really check if the rtx queue is not empty. Tested: Before the fix : $ nstat -n;./netperf -H 10.246.7.152 -Cc -- -m 500;nstat | grep AutoCork MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 10.246.7.152 () port 0 AF_INET Recv Send Send Utilization Service Demand Socket Socket Message Elapsed Send Recv Send Recv Size Size Size Time Throughput local remote local remote bytes bytes bytes secs. 10^6bits/s % S % S us/KB us/KB 540000 262144 500 10.00 2682.85 2.47 1.59 3.618 2.329 TcpExtTCPAutoCorking 33 0.0 // Same test, but forcing TCP_NODELAY $ nstat -n;./netperf -H 10.246.7.152 -Cc -- -D -m 500;nstat | grep AutoCork MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 10.246.7.152 () port 0 AF_INET : nodelay Recv Send Send Utilization Service Demand Socket Socket Message Elapsed Send Recv Send Recv Size Size Size Time Throughput local remote local remote bytes bytes bytes secs. 10^6bits/s % S % S us/KB us/KB 540000 262144 500 10.00 1408.75 2.44 2.96 6.802 8.259 TcpExtTCPAutoCorking 1 0.0 After the fix : $ nstat -n;./netperf -H 10.246.7.152 -Cc -- -m 500;nstat | grep AutoCork MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 10.246.7.152 () port 0 AF_INET Recv Send Send Utilization Service Demand Socket Socket Message Elapsed Send Recv Send Recv Size Size Size Time Throughput local remote local remote bytes bytes bytes secs. 10^6bits/s % S % S us/KB us/KB 540000 262144 500 10.00 5472.46 2.45 1.43 1.761 1.027 TcpExtTCPAutoCorking 361293 0.0 // With TCP_NODELAY option $ nstat -n;./netperf -H 10.246.7.152 -Cc -- -D -m 500;nstat | grep AutoCork MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 10.246.7.152 () port 0 AF_INET : nodelay Recv Send Send Utilization Service Demand Socket Socket Message Elapsed Send Recv Send Recv Size Size Size Time Throughput local remote local remote bytes bytes bytes secs. 10^6bits/s % S % S us/KB us/KB 540000 262144 500 10.00 5454.96 2.46 1.63 1.775 1.174 TcpExtTCPAutoCorking 315448 0.0 Fixes: 75c119af ("tcp: implement rb-tree based retransmit queue") Signed-off-by:
Michael Wenig <mwenig@vmware.com> Tested-by:
Neal Cardwell <ncardwell@google.com> Acked-by:
Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by:
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Sun Lianwen authored
The function name is wrong in ip6gre_tnl_addr_conflict() comment, which use ip6_tnl_addr_conflict instead of ip6gre_tnl_addr_conflict. Signed-off-by:
Sun Lianwen <sunlw.fnst@cn.fujitsu.com> Signed-off-by:
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