Commit Graph

789396 Commits

Author SHA1 Message Date
Sunil Goutham d6f092ca92 octeontx2-af: Support for NIXLF's UCAST/PROMISC/ALLMULTI modes
By default NIXLF is set in UCAST mode. This patch adds a new
mailbox message which when sent by a RVU PF changes this default
mode. When promiscuous mode is needed, the reserved promisc entry
for each of RVU PF is setup to match against ingress channel number
only, so that all pkts on that channel are accepted and forwarded
to the mode change requesting PF_FUNC's NIXLF.

PROMISC and ALLMULTI modes are supported only for PFs, for VFs only
UCAST mode is supported.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:38 -07:00
Sunil Goutham 6f03cf10fc octeontx2-af: Support for setting MAC address
Added a new mailbox message for a PF/VF to set/update
it's NIXLF's MAC address. Also updates unicast NPC
MCAM entry with this address as matching DMAC.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:38 -07:00
Sunil Goutham cc96b0e9b4 octeontx2-af: Support for changing RSS algorithm
This patch adds support for a RVU PF/VF to change
NIX Rx flowkey algorithm index in NPC RX RSS_ACTION.
eg: a ethtool command changing RSS algorithm for a netdev
interface would trigger this change in NPC.

If PF/VF doesn't specify any MCAM entry index then default
UCAST entry of the NIXLF attached to PF/VF will be updated
with RSS_ACTION and flowkey index.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:38 -07:00
Sunil Goutham 41a7aa7b80 octeontx2-af: NIX Rx flowkey configuration for RSS
Configure NIX RX flowkey algorithm configuration to support
RSS (receive side scaling). Currently support for only L3/L4
2-tuple and 4-tuple hash of IPv4/v6/TCP/UDP/SCTP is added.
HW supports upto 32 different flowkey algorithms which SW
can define, this patch defines 9. NPC RX ACTION has to point
to one of these flowkey indices for RSS to work.

The configuration is dependent on NPC parse result's layer
info. So if NPC KPU profile changes suchthat LID/LTYPE values
of above said protocols change then this configuration will
most likely be effected.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:38 -07:00
Sunil Goutham 7590014066 octeontx2-af: Install ucast and bcast pkt forwarding rules
Upon NIXLF_ALLOC install a unicast forwarding rule in NPC MCAM
like below
 - Match pkt DMAC with NIXLF attached PF/VF's MAC address.
 - Ingress channel
 - Action is UCAST
 - Forward to PF_FUNC of this NIXLF
And broadcast pkt forwarding rule as
 - Match L2B bit in MCAM search key
 - Ingress channel
 - Action is UCAST, for now, later it will be changed to MCAST.
Only PFs can install this rule

Upon NIXLF_FREE disable all MCAM entries in use by that NIXLF.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:38 -07:00
Stanislaw Kardach f5721f76a4 octeontx2-af: Add LMAC channel info to NIXLF_ALLOC response
Add LMAC channel info like Rx/Tx channel base and count to
NIXLF_ALLOC mailbox message response. This info is used by
NIXLF attached RVU PF/VF to configure SQ's default channel,
TL3_TL2_LINKX_CFG and to install MCAM rules in NPC based
on matching ingress channel number.

Signed-off-by: Stanislaw Kardach <skardach@marvell.com>
Signed-off-by: Tomasz Duszynski <tduszynski@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:38 -07:00
Sunil Goutham fefefd99ae octeontx2-af: NPC MCAM and LDATA extract minimal configuration
This patch adds some minimal configuration for NPC MCAM and
LDATA extraction which is sufficient enough to install
ucast/bcast/promiscuous forwarding rules. Below is the
config done
- LDATA extraction config to extract DMAC from pkt
  to offset 64bit in MCAM search key.
- Set MCAM lookup keysize to 224bits
- Set MCAM TX miss action to UCAST_DEFAULT
- Set MCAM RX miss action to DROP

Also inorder to have guaranteed space in MCAM to install
ucast forwarding rule for each of RVU PF/VF, reserved
one MCAM entry for each of NIXLF for ucast rule. And two
entries for each of RVU PF. One for bcast pkt replication
and other for promiscuous mode which allows all pkts
received on a HW CGX/LBK channel.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:38 -07:00
Sunil Goutham 6b3321bacc octeontx2-af: Enable packet length and csum validation
Config NPC layer info from KPU profile into protocol
checker to identify outer L2/IPv4/TCP/UDP headers in a
packet. And enable IPv4 checksum validation.

L3/L4 and L4 CSUM validation will be enabled by PF/VF
drivers by configuring NIX_AF_LF(0..127)_RX_CFG via mbox
i.e 'nix_lf_alloc_req->rx_cfg'

Also enable setting of NPC_RESULT_S[L2B] when an outer
L2 broadcast address is detected. This will help in
installing NPC MCAM rules for broadcast packets.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:38 -07:00
Vamsi Attunuru d02913d916 octeontx2-af: Support for VTAG strip and capture
Added support for PF/VF drivers to configure NIX to
capture and/or strip VLAN tag from ingress packets.

Signed-off-by: Vamsi Attunuru <vamsi.attunuru@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:38 -07:00
Sunil Goutham 4b05528ebf octeontx2-af: Update bcast list upon NIXLF alloc/free
Upon NIXLF ALLOC/FREE, add or remove corresponding PF_FUNC from
the broadcast packet replication list of the CGX LMAC mapped
RVU PF.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:38 -07:00
Sunil Goutham 52d3d327a2 octeontx2-af: Broadcast packet replication support
Allocate memory for mcast/bcast/mirror replication entry
contexts, replication buffers (used by HW) and config HW
with corresponding memory bases. Added support for installing
MCEs via NIX AQ mbox.

For now support is restricted to broadcast pkt replication,
hence MCE table size and number of replication buffers
allocated are less. Each CGX LMAC mapped RVU PF is assigned
a MCE table of size 'num VFs of that PF + PF'.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:38 -07:00
Geetha sowjanya 94d942c5fb octeontx2-af: Config pkind for CGX mapped PFs
For each CGX LMAC that is mapped to a RVU PF, allocate
a pkind and config the same in CGX. For a received packet
at CGX LMAC interface this pkind is used by NPC block
to start parsing of packet.

Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:38 -07:00
Sunil Goutham 23923ea4b1 octeontx2-af: Config NPC KPU engines with parser profile
This patch configures all 16 KPUs and iKPU (pkinds) with
the KPU parser profile defined in npc_profile.h. Each KPU
engine has a 128 entry CAM, only CAM entries which are listed
in the profile are enabled and rest are left disabled.

Also
- Memory is allocated for pkind's bitmap and PFFUNC, interface
  channel mapping.
- Added all CSR offsets of NPC HW block.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:37 -07:00
Hao Zheng 21e6699e5c octeontx2-af: Add NPC KPU profile
NPC block is responsible for parsing and forwarding
packets to different NIXLFs. NPC has 16 KPU engines
(Kangaroo parse engine) and one iKPU which represents
pkinds. Each physical port either CGX/LBK is assigned
a pkind and upon receiving a packet HW takes that port's
pkind and starts parsing as per the KPU engines config.

This patch adds header files which contain configuration
profile/array for each of the iKPU and 16 KPU engines.

Signed-off-by: Hao Zheng <hao.zheng@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:37 -07:00
Vamsi Attunuru 4234966178 octeontx2-af: Reset NIXLF's Rx/Tx stats
This patch adds a new mailbox message to reset
a NIXLF's receive and transmit HW stats.

Signed-off-by: Vamsi Attunuru <vamsi.attunuru@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:37 -07:00
Sunil Goutham b279bbb331 octeontx2-af: NIX Tx scheduler queue config support
This patch adds support for a PF/VF driver to configure
NIX transmit scheduler queues via mbox. Since PF/VF doesn't
know the absolute HW index of the NIXLF attached to it, AF
traps the register config and overwrites with the correct
NIXLF index.

HW supports shaping, colouring and policing of packets with
these multilevel traffic scheduler queues. Instead of
introducing different mbox message formats for different
configurations and making both AF & PF/VF driver implementation
cumbersome, access to the scheduler queue's CSRs is provided
via mbox. AF checks whether the sender PF/VF has the
corresponding queue allocated or not and dumps the config
to HW. With a single mbox msg 20 registers can be configured.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:37 -07:00
Sunil Goutham a3e7121c70 octeontx2-af: NIX Tx scheduler queues alloc/free
Added support for a PF/VF to allocate or free NIX transmit
scheduler queues via mbox. For setting up pkt transmission
priorities between queues, the scheduler queues have to be
contiguous w.r.t their HW indices. So both contiguous and
non-contiguous allocations are supported.

Upon receiving NIX_TXSCH_FREE mbox msg all scheduler queues
allocated to sending PFFUNC (PF/VF) will be freed. Selective
free is not supported.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 20:15:37 -07:00
Eric Dumazet 604d415e2b llc: do not use sk_eat_skb()
syzkaller triggered a use-after-free [1], caused by a combination of
skb_get() in llc_conn_state_process() and usage of sk_eat_skb()

sk_eat_skb() is assuming the skb about to be freed is only used by
the current thread. TCP/DCCP stacks enforce this because current
thread holds the socket lock.

llc_conn_state_process() wants to make sure skb does not disappear,
and holds a reference on the skb it manipulates. But as soon as this
skb is added to socket receive queue, another thread can consume it.

This means that llc must use regular skb_unlink() and kfree_skb()
so that both producer and consumer can safely work on the same skb.

[1]
BUG: KASAN: use-after-free in atomic_read include/asm-generic/atomic-instrumented.h:21 [inline]
BUG: KASAN: use-after-free in refcount_read include/linux/refcount.h:43 [inline]
BUG: KASAN: use-after-free in skb_unref include/linux/skbuff.h:967 [inline]
BUG: KASAN: use-after-free in kfree_skb+0xb7/0x580 net/core/skbuff.c:655
Read of size 4 at addr ffff8801d1f6fba4 by task ksoftirqd/1/18

CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.0-rc8+ #295
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b6 lib/dump_stack.c:113
 print_address_description.cold.8+0x9/0x1ff mm/kasan/report.c:256
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.9+0x242/0x309 mm/kasan/report.c:412
 check_memory_region_inline mm/kasan/kasan.c:260 [inline]
 check_memory_region+0x13e/0x1b0 mm/kasan/kasan.c:267
 kasan_check_read+0x11/0x20 mm/kasan/kasan.c:272
 atomic_read include/asm-generic/atomic-instrumented.h:21 [inline]
 refcount_read include/linux/refcount.h:43 [inline]
 skb_unref include/linux/skbuff.h:967 [inline]
 kfree_skb+0xb7/0x580 net/core/skbuff.c:655
 llc_sap_state_process+0x9b/0x550 net/llc/llc_sap.c:224
 llc_sap_rcv+0x156/0x1f0 net/llc/llc_sap.c:297
 llc_sap_handler+0x65e/0xf80 net/llc/llc_sap.c:438
 llc_rcv+0x79e/0xe20 net/llc/llc_input.c:208
 __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4913
 __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:5023
 process_backlog+0x218/0x6f0 net/core/dev.c:5829
 napi_poll net/core/dev.c:6249 [inline]
 net_rx_action+0x7c5/0x1950 net/core/dev.c:6315
 __do_softirq+0x30c/0xb03 kernel/softirq.c:292
 run_ksoftirqd+0x94/0x100 kernel/softirq.c:653
 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413

Allocated by task 18:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490
 kmem_cache_alloc_node+0x144/0x730 mm/slab.c:3644
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:995 [inline]
 llc_alloc_frame+0xbc/0x370 net/llc/llc_sap.c:54
 llc_station_ac_send_xid_r net/llc/llc_station.c:52 [inline]
 llc_station_rcv+0x1dc/0x1420 net/llc/llc_station.c:111
 llc_rcv+0xc32/0xe20 net/llc/llc_input.c:220
 __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4913
 __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:5023
 process_backlog+0x218/0x6f0 net/core/dev.c:5829
 napi_poll net/core/dev.c:6249 [inline]
 net_rx_action+0x7c5/0x1950 net/core/dev.c:6315
 __do_softirq+0x30c/0xb03 kernel/softirq.c:292

Freed by task 16383:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 __kasan_slab_free+0x102/0x150 mm/kasan/kasan.c:521
 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528
 __cache_free mm/slab.c:3498 [inline]
 kmem_cache_free+0x83/0x290 mm/slab.c:3756
 kfree_skbmem+0x154/0x230 net/core/skbuff.c:582
 __kfree_skb+0x1d/0x20 net/core/skbuff.c:642
 sk_eat_skb include/net/sock.h:2366 [inline]
 llc_ui_recvmsg+0xec2/0x1610 net/llc/af_llc.c:882
 sock_recvmsg_nosec net/socket.c:794 [inline]
 sock_recvmsg+0xd0/0x110 net/socket.c:801
 ___sys_recvmsg+0x2b6/0x680 net/socket.c:2278
 __sys_recvmmsg+0x303/0xb90 net/socket.c:2390
 do_sys_recvmmsg+0x181/0x1a0 net/socket.c:2466
 __do_sys_recvmmsg net/socket.c:2484 [inline]
 __se_sys_recvmmsg net/socket.c:2480 [inline]
 __x64_sys_recvmmsg+0xbe/0x150 net/socket.c:2480
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff8801d1f6fac0
 which belongs to the cache skbuff_head_cache of size 232
The buggy address is located 228 bytes inside of
 232-byte region [ffff8801d1f6fac0, ffff8801d1f6fba8)
The buggy address belongs to the page:
page:ffffea000747dbc0 count:1 mapcount:0 mapping:ffff8801d9be7680 index:0xffff8801d1f6fe80
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffffea0007346e88 ffffea000705b108 ffff8801d9be7680
raw: ffff8801d1f6fe80 ffff8801d1f6f0c0 000000010000000b 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801d1f6fa80: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
 ffff8801d1f6fb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8801d1f6fb80: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc
                               ^
 ffff8801d1f6fc00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8801d1f6fc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:59:20 -07:00
Mathias Thore ba59d57058 net/wan/fsl_ucc_hdlc: error counters
Extract error information from rx and tx buffer descriptors,
and update error counters.

Signed-off-by: Mathias Thore <mathias.thore@infinera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:58:10 -07:00
Wolfram Sang 2af1ccd581 net: dsa: legacy: simplify getting .driver_data
We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:49:04 -07:00
Wolfram Sang c0bfdae013 ptp: ptp_dte: simplify getting .driver_data
We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:48:35 -07:00
Arthur Kiyanovski 00f17a8219 net: ena: fix compilation error in xtensa architecture
linux/prefetch.h is never explicitly included in ena_com, although
functions from it, such as prefetchw(), are used throughout ena_com.
This is an inclusion bug, and we fix it here by explicitly including
linux/prefetch.h. The bug was exposed when the driver was compiled
for the xtensa architecture.

Fixes: 689b2bdaaa ("net: ena: add functions for handling Low Latency Queues in ena_com")
Fixes: 8c590f9776 ("ena: Fix Kconfig dependency on X86")
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:48:04 -07:00
Vito Caputo 424c22fb62 af_unix.h: trivial whitespace cleanup
Replace spurious spaces with a tab and remove superfluous tab from
unix_sock struct.

Signed-off-by: Vito Caputo <vcaputo@pengaru.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:47:21 -07:00
Dan Carpenter cc3a4cd3f0 net/mlx5: Allocate enough space for the FDB sub-namespaces
FDB_MAX_CHAIN is three.  We wanted to allocate enough memory to hold four
structs but there are missing parentheses so we only allocate enough
memory for three structs and the first byte of the fourth one.

Fixes: 328edb499f ("net/mlx5: Split FDB fast path prio to multiple namespaces")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:46:34 -07:00
David S. Miller ec7f0ee2c1 Merge branch 'forbid-goto_chain-fallback'
Davide Caratti says:

====================
net/sched: forbid 'goto_chain' on fallback actions

the following command:

 # tc actions add action police rate 1mbit burst 1k conform-exceed \
 > pass / goto chain 42

generates a NULL pointer dereference when packets exceed the configured
rate. Similarly, the following command:

 # tc actions add action pass random determ goto chain 42 2

makes the kernel crash with NULL dereference when the first packet does
not match the 'pass' action.

gact and police allow users to specify a fallback control action, that is
stored in the action private data. 'goto chain x' never worked for these
cases, since a->goto_chain handle was never initialized. There is only one
goto_chain handle per TC action, and it is designed to be non-NULL only if
tcf_action contains a 'goto chain' command. So, let's forbid 'goto chain'
on fallback actions.

Patch 1/4 and 2/4 change the .init() functions of police and gact, to let
them return an error when users try to set 'goto chain x' in the fallback
action. Patch 3/4 and 4/4 add TDC selftest coverage to this new behavior.
====================

Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:42:58 -07:00
Davide Caratti 246e886d22 tc-tests: test denial of 'goto chain' for exceed traffic in police.json
add test to verify if act_police forbids 'goto chain' control actions for
'exceed' traffic.

Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:42:50 -07:00
Davide Caratti 88c2e3b4a9 tc-tests: test denial of 'goto chain' on 'random' traffic in gact.json
add test to verify if act_gact forbids 'goto chain' control actions on
'random' traffic in gact.json.

Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:42:50 -07:00
Davide Caratti c08f5ed5d6 net/sched: act_police: disallow 'goto chain' on fallback control action
in the following command:

 # tc action add action police rate <r> burst <b> conform-exceed <c1>/<c2>

'goto chain x' is allowed only for c1: setting it for c2 makes the kernel
crash with NULL pointer dereference, since TC core doesn't initialize the
chain handle.

Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:42:50 -07:00
Davide Caratti 9469f375ab net/sched: act_gact: disallow 'goto chain' on fallback control action
in the following command:

 # tc action add action <c1> random <rand_type> <c2> <rand_param>

'goto chain x' is allowed only for c1: setting it for c2 makes the kernel
crash with NULL pointer dereference, since TC core doesn't initialize the
chain handle.

Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:40:55 -07:00
Andrew Lunn 92c9d5627a net: phy: phy_support_sym_pause: Clear Asym Pause
When indicating the MAC supports Symmetric Pause, clear the Asymmetric
Pause bit, which could of been already set is the PHY supports it.

Reported-by: Labbe Corentin <clabbe@baylibre.com>
Fixes: c306ad3618 ("net: ethernet: Add helper for MACs which support pause")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:38:22 -07:00
Olivier Brunel 4b78030b8f net: bpfilter: Set user mode helper's command line
Signed-off-by: Olivier Brunel <jjk@jjacky.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:37:36 -07:00
Olivier Brunel 876dcf2f3a umh: Add command line to user mode helpers
User mode helpers were spawned without a command line, and because
an empty command line is used by many tools to identify processes as
kernel threads, this could cause some issues.

Notably during killing spree on shutdown, since such helper would then
be skipped (i.e. not killed) which would result in the process remaining
alive, and thus preventing unmouting of the rootfs (as experienced with
the bpfilter umh).

Fixes: 449325b52b ("umh: introduce fork_usermode_blob() helper")
Signed-off-by: Olivier Brunel <jjk@jjacky.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:37:36 -07:00
Dan Carpenter c94f026fb7 qlcnic: fix a return in qlcnic_dcb_get_capability()
These functions are supposed to return one on failure and zero on
success.  Returning a zero here could cause uninitialized variable
bugs in several of the callers.  For example:

    drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:1660 get_iscsi_dcb_priority()
    error: uninitialized symbol 'caps'.

Fixes: 48365e4852 ("qlcnic: dcb: Add support for CEE Netlink interface.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:34:16 -07:00
David S. Miller de46e92af4 Merge branch 'net-Add-support-for-dumping-addresses-for-a-specific-device'
David Ahern says:

====================
net: Add support for dumping addresses for a specific device

Use the recently added kernel side filter infrastructure to add support
for dumping addresses only for a specific device.

Patch 1 creates an IPv4 version similar to IPv6's in6_dump_addrs function.

Patch 2 simplifies in6_dump_addrs by moving index tracking of IP
addresses from inet6_dump_addr to in6_dump_addrs.

Patches 3 and 4 use the device-based address dump helpers to limit a
dump to just the addresses on a specific device.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:33:29 -07:00
David Ahern 6371a71f3a net/ipv6: Add support for dumping addresses for a specific device
If an RTM_GETADDR dump request has ifa_index set in the ifaddrmsg
header, then return only the addresses for that device.

Since inet6_dump_addr is reused for multicast and anycast addresses,
this adds support for device specfic dumps of RTM_GETMULTICAST and
RTM_GETANYCAST as well.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:33:29 -07:00
David Ahern 5fcd266a9f net/ipv4: Add support for dumping addresses for a specific device
If an RTM_GETADDR dump request has ifa_index set in the ifaddrmsg
header, then return only the addresses for that device.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:33:29 -07:00
David Ahern fe884c2be0 net/ipv6: Remove ip_idx arg to in6_dump_addrs
ip_idx is always 0 going into in6_dump_addrs; it is passed as a pointer
to save the last good index into cb. Since cb is already argument to
in6_dump_addrs, just save the value there.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:33:29 -07:00
David Ahern 1c98eca412 net/ipv4: Move loop over addresses on a device into in_dev_dump_addr
Similar to IPv6 move the logic that walks over the ipv4 address list
for a device into a helper.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:33:29 -07:00
David S. Miller 8df591f35e Merge branch 'hns3-next'
Salil Mehta says:

====================
Adds support of RAS Error Handling in HNS3 Driver

This patch-set adds support related to RAS Error handling to the HNS3
Ethernet PF Driver. Set of errors occurred in the HNS3 hardware are
reported to the driver through the PCIe AER interface. The received
error information is then used to classify the received errors and
then decide the appropriate receovery action depending on the type
of error.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:31:14 -07:00
Shiju Jose 01865a50d7 net: hns3: Add enable and process hw errors of TM scheduler
This patch enables and process hw errors of TM scheduler and
QCN(Quantized Congestion Control).

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:31:14 -07:00
Shiju Jose da2d072a9e net: hns3: Add enable and process hw errors from PPP
This patch enables and process hw errors from the
PPP(Programmable Packet Process) block.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:31:14 -07:00
Shiju Jose bf1faf9415 net: hns3: Add enable and process hw errors from IGU, EGU and NCSI
This patch adds enable and processing of hw errors from IGU(Ingress Unit),
EGU(Egress Unit) and NCSI(Network Controller Sideband Interface).

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:31:13 -07:00
Shiju Jose 6d67ee9a27 net: hns3: Add enable and process common ecc errors
This patch adds enable and processing of ecc errors from
common HNS blocks, CMDQ(Command Queue),
IMP(Integrated Management Processor) and TQP(Task Queue Pair).

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:31:13 -07:00
Shiju Jose 9971419503 net: hns3: Add support to enable and disable hw errors
This patch adds functions to enable and disable hw errors.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:31:13 -07:00
Shiju Jose 6ae4e733cd net: hns3: Add PCIe AER error recovery
This patch adds the error recovery for the HNS hw errors.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:31:13 -07:00
Shiju Jose 5a9f0eac93 net: hns3: Add PCIe AER callback error_detected
Set of hw errors occurred in the HNS3 are reported to the
hns3 driver through PCIe AER and RAS.The error info will be
processed and appropriately recovered.
This patch adds error_detected callback and error processing.

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:31:13 -07:00
Nathan Chancellor aeb5e02aca mISDN: Fix type of switch control variable in ctrl_teimanager
Clang warns (trimmed for brevity):

drivers/isdn/mISDN/tei.c:1193:7: warning: overflow converting case value
to switch condition type (2147764552 to 18446744071562348872) [-Wswitch]
        case IMHOLD_L1:
             ^
drivers/isdn/mISDN/tei.c:1187:7: warning: overflow converting case value
to switch condition type (2147764550 to 18446744071562348870) [-Wswitch]
        case IMCLEAR_L2:
             ^
2 warnings generated.

The root cause is that the _IOC macro can generate really large numbers,
which don't find into type int. My research into how GCC and Clang are
handling this at a low level didn't prove fruitful and surveying the
kernel tree shows that aside from here and a few places in the scsi
subsystem, everything that uses _IOC is at least of type 'unsigned int'.
Make that change here because as nothing in this function cares about
the signedness of the variable and it removes ambiguity, which is never
good when dealing with compilers.

While we're here, remove the unnecessary local variable ret (just return
-EINVAL and 0 directly).

Link: https://github.com/ClangBuiltLinux/linux/issues/67
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:30:24 -07:00
Jon Maloy 988f3f1603 tipc: eliminate message disordering during binding table update
We have seen the following race scenario:
1) named_distribute() builds a "bulk" message, containing a PUBLISH
   item for a certain publication. This is based on the contents of
   the binding tables's 'cluster_scope' list.
2) tipc_named_withdraw() removes the same publication from the list,
   bulds a WITHDRAW message and distributes it to all cluster nodes.
3) tipc_named_node_up(), which was calling named_distribute(), sends
   out the bulk message built under 1)
4) The WITHDRAW message arrives at the just detected node, finds
   no corresponding publication, and is dropped.
5) The PUBLISH item arrives at the same node, is added to its binding
   table, and remains there forever.

This arrival disordering was earlier taken care of by the backlog queue,
originally added for a different purpose, which was removed in the
commit referred to below, but we now need a different solution.
In this commit, we replace the rcu lock protecting the 'cluster_scope'
list with a regular RW lock which comprises even the sending of the
bulk message. This both guarantees both the list integrity and the
message sending order. We will later add a commit which cleans up
this code further.

Note that this commit needs recently added commit d3092b2efc ("tipc:
fix unsafe rcu locking when accessing publication list") to apply
cleanly.

Fixes: 37922ea4a3 ("tipc: permit overlapping service ranges in name table")
Reported-by: Tuong Lien Tong <tuong.t.lien@dektech.com.au>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:29:12 -07:00
YueHaibing eec6f752f7 octeontx2-af: Remove set but not used variables 'devnum, is_pf'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/marvell/octeontx2/af/rvu.c: In function 'rvu_detach_rsrcs':
drivers/net/ethernet/marvell/octeontx2/af/rvu.c:855:6: warning:
 variable 'devnum' set but not used [-Wunused-but-set-variable]

drivers/net/ethernet/marvell/octeontx2/af/rvu.c:853:7: warning:
 variable 'is_pf' set but not used [-Wunused-but-set-variable]

drivers/net/ethernet/marvell/octeontx2/af/rvu.c: In function 'rvu_mbox_handler_ATTACH_RESOURCES':
drivers/net/ethernet/marvell/octeontx2/af/rvu.c:1054:7: warning:
 variable 'is_pf' set but not used [-Wunused-but-set-variable]

drivers/net/ethernet/marvell/octeontx2/af/rvu.c:1053:6: warning:
 variable 'devnum' set but not used [-Wunused-but-set-variable]

It never used since introduction in commit
746ea74241 ("octeontx2-af: Add RVU block LF provisioning support")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:28:46 -07:00
YueHaibing 665fc901b5 octeontx2-af: Remove set but not used variable 'block'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c: In function 'rvu_npa_init':
drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c:446:20: warning:
 variable 'block' set but not used [-Wunused-but-set-variable]

It never used since introduction in
commit 7a37245ef2 ("octeontx2-af: NPA block admin queue init")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-22 19:28:14 -07:00