| Age | Commit message (Collapse) | Author |
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This avoids an indirect call per RX IPv6/IPv4 packet.
Note that we don't want to use the indirect calls helper for taps.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Rename STATE_IN_BAND_SLEEP_ENABLED to QCA_IBS_ENABLED. The constant
represents a flag (multiple flags can be set at once), not a unique
state of the controller or driver.
Also make the flag an enum value instead of a pre-processor constant
(more flags will be added to the enum group by another patch).
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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When changing the number of buffers in the RX ring while the interface
is running, the following Oops is encountered due to the new number
of buffers being taken into account immediately while their allocation
is done when opening the device only.
[ 69.882706] Unable to handle kernel paging request for data at address 0xf0000100
[ 69.890172] Faulting instruction address: 0xc033e164
[ 69.895122] Oops: Kernel access of bad area, sig: 11 [#1]
[ 69.900494] BE PREEMPT CMPCPRO
[ 69.907120] CPU: 0 PID: 0 Comm: swapper Not tainted 4.14.115-00006-g179ade8ce3-dirty #269
[ 69.915956] task: c0684310 task.stack: c06da000
[ 69.920470] NIP: c033e164 LR: c02e44d0 CTR: c02e41fc
[ 69.925504] REGS: dfff1e20 TRAP: 0300 Not tainted (4.14.115-00006-g179ade8ce3-dirty)
[ 69.934161] MSR: 00009032 <EE,ME,IR,DR,RI> CR: 22004428 XER: 20000000
[ 69.940869] DAR: f0000100 DSISR: 20000000
[ 69.940869] GPR00: c0352d70 dfff1ed0 c0684310 f00000a4 00000040 dfff1f68 00000000 0000001f
[ 69.940869] GPR08: df53f410 1cc00040 00000021 c0781640 42004424 100c82b6 f00000a4 df53f5b0
[ 69.940869] GPR16: df53f6c0 c05daf84 00000040 00000000 00000040 c0782be4 00000000 00000001
[ 69.940869] GPR24: 00000000 df53f400 000001b0 df53f410 df53f000 0000003f df708220 1cc00044
[ 69.978348] NIP [c033e164] skb_put+0x0/0x5c
[ 69.982528] LR [c02e44d0] ucc_geth_poll+0x2d4/0x3f8
[ 69.987384] Call Trace:
[ 69.989830] [dfff1ed0] [c02e4554] ucc_geth_poll+0x358/0x3f8 (unreliable)
[ 69.996522] [dfff1f20] [c0352d70] net_rx_action+0x248/0x30c
[ 70.002099] [dfff1f80] [c04e93e4] __do_softirq+0xfc/0x310
[ 70.007492] [dfff1fe0] [c0021124] irq_exit+0xd0/0xd4
[ 70.012458] [dfff1ff0] [c000e7e0] call_do_irq+0x24/0x3c
[ 70.017683] [c06dbe80] [c0006bac] do_IRQ+0x64/0xc4
[ 70.022474] [c06dbea0] [c001097c] ret_from_except+0x0/0x14
[ 70.027964] --- interrupt: 501 at rcu_idle_exit+0x84/0x90
[ 70.027964] LR = rcu_idle_exit+0x74/0x90
[ 70.037585] [c06dbf60] [20000000] 0x20000000 (unreliable)
[ 70.042984] [c06dbf80] [c004bb0c] do_idle+0xb4/0x11c
[ 70.047945] [c06dbfa0] [c004bd14] cpu_startup_entry+0x18/0x1c
[ 70.053682] [c06dbfb0] [c05fb034] start_kernel+0x370/0x384
[ 70.059153] [c06dbff0] [00003438] 0x3438
[ 70.063062] Instruction dump:
[ 70.066023] 38a00000 38800000 90010014 4bfff015 80010014 7c0803a6 3123ffff 7c691910
[ 70.073767] 38210010 4e800020 38600000 4e800020 <80e3005c> 80c30098 3107ffff 7d083910
[ 70.081690] ---[ end trace be7ccd9c1e1a9f12 ]---
This patch forbids the modification of the number of buffers in the
ring while the interface is running.
Fixes: ac421852b3a0 ("ucc_geth: add ethtool support")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix issue with the entry indexing in the sg frame cleanup code being
off-by-1. This problem showed up when doing some basic iperf tests and
manifested in traffic coming to a halt.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The "pdata->mdio_bus_id" is unsigned so this condition is always true.
This patch just removes it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The phy_connect() function doesn't return NULL pointers. It returns
error pointers on error, so I have updated the check.
Fixes: 8425c41d1ef7 ("net: ll_temac: Extend support to non-device-tree platforms")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This commit makes the kernel not send the next queued HCI command until
a command complete arrives for the last HCI command sent to the
controller. This change avoids a problem with some buggy controllers
(seen on two SKUs of QCA9377) that send an extra command complete event
for the previous command after the kernel had already sent a new HCI
command to the controller.
The problem was reproduced when starting an active scanning procedure,
where an extra command complete event arrives for the LE_SET_RANDOM_ADDR
command. When this happends the kernel ends up not processing the
command complete for the following commmand, LE_SET_SCAN_PARAM, and
ultimately behaving as if a passive scanning procedure was being
performed, when in fact controller is performing an active scanning
procedure. This makes it impossible to discover BLE devices as no device
found events are sent to userspace.
This problem is reproducible on 100% of the attempts on the affected
controllers. The extra command complete event can be seen at timestamp
27.420131 on the btmon logs bellow.
Bluetooth monitor ver 5.50
= Note: Linux version 5.0.0+ (x86_64) 0.352340
= Note: Bluetooth subsystem version 2.22 0.352343
= New Index: 80:C5:F2:8F:87:84 (Primary,USB,hci0) [hci0] 0.352344
= Open Index: 80:C5:F2:8F:87:84 [hci0] 0.352345
= Index Info: 80:C5:F2:8F:87:84 (Qualcomm) [hci0] 0.352346
@ MGMT Open: bluetoothd (privileged) version 1.14 {0x0001} 0.352347
@ MGMT Open: btmon (privileged) version 1.14 {0x0002} 0.352366
@ MGMT Open: btmgmt (privileged) version 1.14 {0x0003} 27.302164
@ MGMT Command: Start Discovery (0x0023) plen 1 {0x0003} [hci0] 27.302310
Address type: 0x06
LE Public
LE Random
< HCI Command: LE Set Random Address (0x08|0x0005) plen 6 #1 [hci0] 27.302496
Address: 15:60:F2:91:B2:24 (Non-Resolvable)
> HCI Event: Command Complete (0x0e) plen 4 #2 [hci0] 27.419117
LE Set Random Address (0x08|0x0005) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 #3 [hci0] 27.419244
Type: Active (0x01)
Interval: 11.250 msec (0x0012)
Window: 11.250 msec (0x0012)
Own address type: Random (0x01)
Filter policy: Accept all advertisement (0x00)
> HCI Event: Command Complete (0x0e) plen 4 #4 [hci0] 27.420131
LE Set Random Address (0x08|0x0005) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 #5 [hci0] 27.420259
Scanning: Enabled (0x01)
Filter duplicates: Enabled (0x01)
> HCI Event: Command Complete (0x0e) plen 4 #6 [hci0] 27.420969
LE Set Scan Parameters (0x08|0x000b) ncmd 1
Status: Success (0x00)
> HCI Event: Command Complete (0x0e) plen 4 #7 [hci0] 27.421983
LE Set Scan Enable (0x08|0x000c) ncmd 1
Status: Success (0x00)
@ MGMT Event: Command Complete (0x0001) plen 4 {0x0003} [hci0] 27.422059
Start Discovery (0x0023) plen 1
Status: Success (0x00)
Address type: 0x06
LE Public
LE Random
@ MGMT Event: Discovering (0x0013) plen 2 {0x0003} [hci0] 27.422067
Address type: 0x06
LE Public
LE Random
Discovery: Enabled (0x01)
@ MGMT Event: Discovering (0x0013) plen 2 {0x0002} [hci0] 27.422067
Address type: 0x06
LE Public
LE Random
Discovery: Enabled (0x01)
@ MGMT Event: Discovering (0x0013) plen 2 {0x0001} [hci0] 27.422067
Address type: 0x06
LE Public
LE Random
Discovery: Enabled (0x01)
Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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BCM2076B1 appears to use 20:76:A0:00:56:79 as default address.
This address is used by at least 5 devices with the AMPAK AP6476
module and is also suspicious because it starts with the chip name
2076 (followed by a different revision A0 for some reason).
Add it to the list of default addresses and leave it up to the
user to configure a valid one.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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The code works fine but the problem is that check for negatives is a
no-op:
if (arg < 0)
i = 0;
The "i" value isn't used. We immediately overwrite it with:
i = array_index_nospec(arg, MAX_LEC_ITF);
The array_index_nospec() macro returns zero if "arg" is out of bounds so
this works, but the dead code is confusing and it doesn't look very
intentional.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for 5.2
Most likely the last patchset of new feature for 5.2, and this time we
have quite a lot of new features. Most obvious being rtw88 from
Realtek which supports RTL8822BE and RTL8822CE 802.11ac devices. We
have also new hardware support for existing drivers and improvements.
There's one conflict in iwlwifi, my example conflict resolution below.
Major changes:
iwlwifi
* bump the 20000-series FW API version
* work on new hardware continues
* RTT confidence indication support for Fine Timing Measurement (FTM)
* an improvement in HE (802.11ax) rate-scaling
* add command version parsing from the fimware TLVs
* add support for a new WoWLAN patterns firmware API
rsi
* add support for rs9116
mwifiex
* add support for SD8987
brcmfmac
* add quirk for ACEPC T8 and T11 mini PCs
rt2x00
* add RT3883 support
qtnfmac
* fix debugfs interface to support multiple cards
rtw88
* new driver
mt76
* share more code across drivers
* add support for MT7615 chipset
* rework DMA API
* tx/rx performance optimizations
* use NAPI for tx cleanup on mt76x02
* AP mode support for USB devices
* USB stability fixes
* tx power handling fixes for 76x2
* endian fixes
Conflicts:
There's a trivial conflict in
drivers/net/wireless/intel/iwlwifi/fw/file.h, just leave
IWL_UCODE_TLV_FW_FSEQ_VERSION to the file. 'git diff' output should be
just empty:
diff --cc drivers/net/wireless/intel/iwlwifi/fw/file.h
index cd622af90077,b0671e16e1ce..000000000000
--- a/drivers/net/wireless/intel/iwlwifi/fw/file.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a spelling mistake in a pr_warn warning. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case of error, the function devm_ioremap() returns NULL pointer not
ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.
Fixes: 03f66f067560 ("net: ethernet: ti: davinci_mdio: use devm_ioremap()")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When a cgroup classifier is added, there is a small time interval in
which tp->root is NULL. If we receive a packet in this small time slice
a NULL pointer dereference will happen, leading to a kernel panic:
# mkdir /sys/fs/cgroup/net_cls/0
# echo 0x100001 > /sys/fs/cgroup/net_cls/0/net_cls.classid
# echo $$ >/sys/fs/cgroup/net_cls/0/tasks
# ping -qfb 255.255.255.255 -I eth0 &>/dev/null &
# tc qdisc add dev eth0 root handle 10: htb
# while : ; do
> tc filter add dev eth0 parent 10: protocol ip prio 10 handle 1: cgroup
> tc filter delete dev eth0
> done
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028
Mem abort info:
ESR = 0x96000005
Exception class = DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
Data abort info:
ISV = 0, ISS = 0x00000005
CM = 0, WnR = 0
user pgtable: 4k pages, 39-bit VAs, pgdp = 0000000098a7ff91
[0000000000000028] pgd=0000000000000000, pud=0000000000000000
Internal error: Oops: 96000005 [#1] SMP
Modules linked in: sch_htb cls_cgroup algif_hash af_alg nls_iso8859_1 nls_cp437 vfat fat xhci_plat_hcd m25p80 spi_nor xhci_hcd mtd usbcore usb_common spi_orion sfp i2c_mv64xxx phy_generic mdio_i2c marvell10g i2c_core mvpp2 mvmdio phylink sbsa_gwdt ip_tables x_tables autofs4
Process ping (pid: 5421, stack limit = 0x00000000b20b1505)
CPU: 3 PID: 5421 Comm: ping Not tainted 5.1.0-rc6 #31
Hardware name: Marvell 8040 MACCHIATOBin Double-shot (DT)
pstate: 60000005 (nZCv daif -PAN -UAO)
pc : cls_cgroup_classify+0x80/0xec [cls_cgroup]
lr : cls_cgroup_classify+0x34/0xec [cls_cgroup]
sp : ffffff8012e6b850
x29: ffffff8012e6b850 x28: ffffffc423dd3c00
x27: ffffff801093ebc0 x26: ffffffc425a85b00
x25: 0000000020000000 x24: 0000000000000000
x23: ffffff8012e6b910 x22: ffffffc428db4900
x21: ffffff8012e6b910 x20: 0000000000100001
x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000
x15: 0000000000000000 x14: 0000000000000000
x13: 0000000000000000 x12: 000000000000001c
x11: 0000000000000018 x10: ffffff8012e6b840
x9 : 0000000000003580 x8 : 000000000000009d
x7 : 0000000000000002 x6 : ffffff8012e6b860
x5 : 000000007cd66ffe x4 : 000000009742a193
x3 : ffffff800865b4d8 x2 : ffffff8012e6b910
x1 : 0000000000000400 x0 : ffffffc42c38f300
Call trace:
cls_cgroup_classify+0x80/0xec [cls_cgroup]
tcf_classify+0x78/0x138
htb_enqueue+0x74/0x320 [sch_htb]
__dev_queue_xmit+0x3e4/0x9d0
dev_queue_xmit+0x24/0x30
ip_finish_output2+0x2e4/0x4d0
ip_finish_output+0x1d8/0x270
ip_mc_output+0xa8/0x240
ip_local_out+0x58/0x68
ip_send_skb+0x2c/0x88
ip_push_pending_frames+0x44/0x50
raw_sendmsg+0x458/0x830
inet_sendmsg+0x54/0xe8
sock_sendmsg+0x34/0x50
__sys_sendto+0xd0/0x120
__arm64_sys_sendto+0x30/0x40
el0_svc_common.constprop.0+0x88/0xf8
el0_svc_handler+0x2c/0x38
el0_svc+0x8/0xc
Code: 39496001 360002a1 b9425c14 34000274 (79405260)
Fixes: ed76f5edccc9 ("net: sched: protect filter_chain list with filter_chain_lock mutex")
Suggested-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The switch to make bas_gigaset use usb_fill_int_urb() - instead of
filling that urb "by hand" - missed the subtle ordering of the previous
code.
See, before the switch urb->dev was set to a member somewhere deep in a
complicated structure and then supplied to usb_rcvisocpipe() and
usb_sndisocpipe(). After that switch urb->dev wasn't set to anything
specific before being supplied to those two macros. This triggers a
nasty oops:
BUG: unable to handle kernel NULL pointer dereference at 00000000
#PF error: [normal kernel read fault]
*pde = 00000000
Oops: 0000 [#1] SMP
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.1.0-0.rc4.1.local0.fc28.i686 #1
Hardware name: IBM 2525FAG/2525FAG, BIOS 74ET64WW (2.09 ) 12/14/2006
EIP: gigaset_init_bchannel+0x89/0x320 [bas_gigaset]
Code: 75 07 83 8b 84 00 00 00 40 8d 47 74 c7 07 01 00 00 00 89 45 f0 8b 44 b7 68 85 c0 0f 84 6a 02 00 00 8b 48 28 8b 93 88 00 00 00 <8b> 09 8d 54 12 03 c1 e2 0f c1 e1 08 09 ca 8b 8b 8c 00 00 00 80 ca
EAX: f05ec200 EBX: ed404200 ECX: 00000000 EDX: 00000000
ESI: 00000000 EDI: f065a000 EBP: f30c9f40 ESP: f30c9f20
DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010086
CR0: 80050033 CR2: 00000000 CR3: 0ddc7000 CR4: 000006d0
Call Trace:
<SOFTIRQ>
? gigaset_isdn_connD+0xf6/0x140 [gigaset]
gigaset_handle_event+0x173e/0x1b90 [gigaset]
tasklet_action_common.isra.16+0x4e/0xf0
tasklet_action+0x1e/0x20
__do_softirq+0xb2/0x293
? __irqentry_text_end+0x3/0x3
call_on_stack+0x45/0x50
</SOFTIRQ>
? irq_exit+0xb5/0xc0
? do_IRQ+0x78/0xd0
? acpi_idle_enter_s2idle+0x50/0x50
? common_interrupt+0xd4/0xdc
? acpi_idle_enter_s2idle+0x50/0x50
? sched_cpu_activate+0x1b/0xf0
? acpi_fan_resume.cold.7+0x9/0x18
? cpuidle_enter_state+0x152/0x4c0
? cpuidle_enter+0x14/0x20
? call_cpuidle+0x21/0x40
? do_idle+0x1c8/0x200
? cpu_startup_entry+0x25/0x30
? rest_init+0x88/0x8a
? arch_call_rest_init+0xd/0x19
? start_kernel+0x42f/0x448
? i386_start_kernel+0xac/0xb0
? startup_32_smp+0x164/0x168
Modules linked in: ppp_generic slhc capi bas_gigaset gigaset kernelcapi nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c iptable_mangle iptable_raw iptable_security ebtable_filter ebtables ip6table_filter ip6_tables sunrpc ipw2200 iTCO_wdt gpio_ich snd_intel8x0 libipw iTCO_vendor_support snd_ac97_codec lib80211 ppdev ac97_bus snd_seq cfg80211 snd_seq_device pcspkr thinkpad_acpi lpc_ich snd_pcm i2c_i801 snd_timer ledtrig_audio snd soundcore rfkill parport_pc parport pcc_cpufreq acpi_cpufreq i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sdhci_pci sysimgblt cqhci fb_sys_fops drm sdhci mmc_core tg3 ata_generic serio_raw yenta_socket pata_acpi video
CR2: 0000000000000000
---[ end trace 1fe07487b9200c73 ]---
EIP: gigaset_init_bchannel+0x89/0x320 [bas_gigaset]
Code: 75 07 83 8b 84 00 00 00 40 8d 47 74 c7 07 01 00 00 00 89 45 f0 8b 44 b7 68 85 c0 0f 84 6a 02 00 00 8b 48 28 8b 93 88 00 00 00 <8b> 09 8d 54 12 03 c1 e2 0f c1 e1 08 09 ca 8b 8b 8c 00 00 00 80 ca
EAX: f05ec200 EBX: ed404200 ECX: 00000000 EDX: 00000000
ESI: 00000000 EDI: f065a000 EBP: f30c9f40 ESP: cddcb3bc
DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010086
CR0: 80050033 CR2: 00000000 CR3: 0ddc7000 CR4: 000006d0
Kernel panic - not syncing: Fatal exception in interrupt
Kernel Offset: 0xcc00000 from 0xc0400000 (relocation range: 0xc0000000-0xf6ffdfff)
---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---
No-one noticed because this Oops is apparently only triggered by setting
up an ISDN data connection on a live ISDN line on a gigaset base (ie,
the PBX that the gigaset driver support). Very few people do that
running present day kernels.
Anyhow, a little code reorganization makes this problem go away, while
avoiding the subtle ordering that was used in the past. So let's do
that.
Fixes: 78c696c19578 ("isdn: gigaset: use usb_fill_int_urb()")
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull vfs fixes from Al Viro:
- a couple of ->i_link use-after-free fixes
- regression fix for wrong errno on absent device name in mount(2)
(this cycle stuff)
- ancient UFS braino in large GID handling on Solaris UFS images (bogus
cut'n'paste from large UID handling; wrong field checked to decide
whether we should look at old (16bit) or new (32bit) field)
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ufs: fix braino in ufs_get_inode_gid() for solaris UFS flavour
Abort file_remove_privs() for non-reg. files
[fix] get rid of checking for absent device name in vfs_get_tree()
apparmorfs: fix use-after-free on symlink traversal
securityfs: fix use-after-free on symlink traversal
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New race in x86_pmu_stop() was introduced by replacing the
atomic __test_and_clear_bit() of cpuc->active_mask by separate
test_bit() and __clear_bit() calls in the following commit:
3966c3feca3f ("x86/perf/amd: Remove need to check "running" bit in NMI handler")
The race causes panic for PEBS events with enabled callchains:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
...
RIP: 0010:perf_prepare_sample+0x8c/0x530
Call Trace:
<NMI>
perf_event_output_forward+0x2a/0x80
__perf_event_overflow+0x51/0xe0
handle_pmi_common+0x19e/0x240
intel_pmu_handle_irq+0xad/0x170
perf_event_nmi_handler+0x2e/0x50
nmi_handle+0x69/0x110
default_do_nmi+0x3e/0x100
do_nmi+0x11a/0x180
end_repeat_nmi+0x16/0x1a
RIP: 0010:native_write_msr+0x6/0x20
...
</NMI>
intel_pmu_disable_event+0x98/0xf0
x86_pmu_stop+0x6e/0xb0
x86_pmu_del+0x46/0x140
event_sched_out.isra.97+0x7e/0x160
...
The event is configured to make samples from PEBS drain code,
but when it's disabled, we'll go through NMI path instead,
where data->callchain will not get allocated and we'll crash:
x86_pmu_stop
test_bit(hwc->idx, cpuc->active_mask)
intel_pmu_disable_event(event)
{
...
intel_pmu_pebs_disable(event);
...
EVENT OVERFLOW -> <NMI>
intel_pmu_handle_irq
handle_pmi_common
TEST PASSES -> test_bit(bit, cpuc->active_mask))
perf_event_overflow
perf_prepare_sample
{
...
if (!(sample_type & __PERF_SAMPLE_CALLCHAIN_EARLY))
data->callchain = perf_callchain(event, regs);
CRASH -> size += data->callchain->nr;
}
</NMI>
...
x86_pmu_disable_event(event)
}
__clear_bit(hwc->idx, cpuc->active_mask);
Fixing this by disabling the event itself before setting
off the PEBS bit.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Arcari <darcari@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Lendacky Thomas <Thomas.Lendacky@amd.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Fixes: 3966c3feca3f ("x86/perf/amd: Remove need to check "running" bit in NMI handler")
Link: http://lkml.kernel.org/r/20190504151556.31031-1-jolsa@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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We have valid scenarios where ETHTOOL_LINK_MODE_Pause_BIT doesn't
need to be supported. Therefore extend the first check to check
for rx_pause being set.
See also phy_set_asym_pause:
rx=0 and tx=1: advertise asym pause only
rx=0 and tx=0: stop advertising both pause modes
The fixed commit isn't wrong, it's just the one that introduced the
linkmode bitmaps.
Fixes: 3c1bcc8614db ("net: ethernet: Convert phydev advertize and supported from u32 to link mode")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The call to nla_nest_start_noflag can return null in the unlikely
event that nla_put returns -EMSGSIZE. Check for this condition to
avoid a null pointer dereference on pointer nla_reply.
Addresses-Coverity: ("Dereference null return value")
Fixes: 11efd5cb04a1 ("openvswitch: Support conntrack zone limit")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Yi-Hung Wei <yihung.wei@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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David Ahern says:
====================
ipv4: Move location of pcpu route cache and exceptions
This series moves IPv4 pcpu cached routes from fib_nh to fib_nh_common
to make the caches available for IPv6 nexthops (fib6_nh) with IPv4
routes. This allows a fib6_nh struct to be used with both IPv4 and
and IPv6 routes.
v4
- fixed memleak if encap_type is not set as noticed by Ido
v3
- dropped ipv6 patches for now. Will resubmit those once the existing
refcnt problem is fixed
v2
- reverted patch 2 to use ifdef CONFIG_IP_ROUTE_CLASSID instead
of IS_ENABLED(CONFIG_IP_ROUTE_CLASSID) to fix compile issues
reported by kbuild test robot
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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|
Similar to the cached routes, make IPv4 exceptions accessible when
using an IPv6 nexthop struct with IPv4 routes. Simplify the exception
functions by passing in fib_nh_common since that is all it needs,
and then cleanup the call sites that have extraneous fib_nh conversions.
As with the cached routes this is a change in location only, from fib_nh
up to fib_nh_common; no functional change intended.
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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Now that the cached routes are in fib_nh_common, pass it to
rt_cache_route and simplify its callers. For rt_set_nexthop,
the tclassid becomes the last user of fib_nh so move the
container_of under the #ifdef CONFIG_IP_ROUTE_CLASSID.
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
While the cached routes, nh_pcpu_rth_output and nh_rth_input, are IPv4
specific, a later patch wants to make them accessible for IPv6 nexthops
with IPv4 routes using a fib6_nh. Move the cached routes from fib_nh to
fib_nh_common and update references.
Initialization of the cached entries is moved to fib_nh_common_init,
and free is moved to fib_nh_common_release.
Change in location only, from fib_nh up to fib_nh_common; no functional
change intended.
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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The libbpf_util.h is used by xsk.h, so add it to
the install headers.
Reported-by: Ben Pfaff <blp@ovn.org>
Signed-off-by: William Tu <u9012063@gmail.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
|
When build perf for ARC recently, there was a build failure due to lack
of __NR_bpf.
| Auto-detecting system features:
|
| ... get_cpuid: [ OFF ]
| ... bpf: [ on ]
|
| # error __NR_bpf not defined. libbpf does not support your arch.
^~~~~
| bpf.c: In function 'sys_bpf':
| bpf.c:66:17: error: '__NR_bpf' undeclared (first use in this function)
| return syscall(__NR_bpf, cmd, attr, size);
| ^~~~~~~~
| sys_bpf
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
|
tools/bpf/bpftool/.gitignore has the "bpftool" pattern, which is
intended to ignore the following build artifact:
tools/bpf/bpftool/bpftool
However, the .gitignore entry is effective not only for the current
directory, but also for any sub-directories.
So, from the point of .gitignore grammar, the following check-in file
is also considered to be ignored:
tools/bpf/bpftool/bash-completion/bpftool
As the manual gitignore(5) says "Files already tracked by Git are not
affected", this is not a problem as far as Git is concerned.
However, Git is not the only program that parses .gitignore because
.gitignore is useful to distinguish build artifacts from source files.
For example, tar(1) supports the --exclude-vcs-ignore option. As of
writing, this option does not work perfectly, but it intends to create
a tarball excluding files specified by .gitignore.
So, I believe it is better to fix this issue.
You can fix it by prefixing the pattern with a slash; the leading slash
means the specified pattern is relative to the current directory.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
|
Björn Töpel says:
====================
William found two bugs, when doing socket teardown within the same
process.
The first issue was an invalid munmap call, and the second one was an
invalid XSKMAP cleanup. Both resulted in that the process kept
references to the socket, which was not correctly cleaned up. When a
new socket was created, the bind() call would fail, since the old
socket was still lingering, refusing to give up the queue on the
netdev.
More details can be found in the individual commits.
Thanks,
Björn
====================
Reviewed-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
|
The bpf_map_update_elem() function, when used on an XSKMAP, will fail
if not a valid AF_XDP socket is passed as value. Therefore, this is
function cannot be used to clear the XSKMAP. Instead, the
bpf_map_delete_elem() function should be used for that.
This patch also simplifies the code by breaking up
xsk_update_bpf_maps() into three smaller functions.
Reported-by: William Tu <u9012063@gmail.com>
Fixes: 1cad07884239 ("libbpf: add support for using AF_XDP sockets")
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: William Tu <u9012063@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
|
When unmapping the AF_XDP memory regions used for the rings, an
invalid address was passed to the munmap() calls. Instead of passing
the beginning of the memory region, the descriptor region was passed
to munmap.
When the userspace application tried to tear down an AF_XDP socket,
the operation failed and the application would still have a reference
to socket it wished to get rid of.
Reported-by: William Tu <u9012063@gmail.com>
Fixes: 1cad07884239 ("libbpf: add support for using AF_XDP sockets")
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: William Tu <u9012063@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
|
Test test_libbpf.sh failed on my development server with failure
-bash-4.4$ sudo ./test_libbpf.sh
[0] libbpf: Error in bpf_object__probe_name():Operation not permitted(1).
Couldn't load basic 'r0 = 0' BPF program.
test_libbpf: failed at file test_l4lb.o
selftests: test_libbpf [FAILED]
-bash-4.4$
The reason is because my machine has 64KB locked memory by default which
is not enough for this program to get locked memory.
Similar to other bpf selftests, let us increase RLIMIT_MEMLOCK
to infinity, which fixed the issue.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
|
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
|
Added freeing the old allocation of vf->qvlist_info in function
i40e_config_iwarp_qvlist before overwriting it with
the new allocation.
Signed-off-by: Martyna Szapar <martyna.szapar@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
Fixed possible memory leak in i40e_vc_add_cloud_filter function:
cfilter is being allocated and in some error conditions
the function returns without freeing the memory.
Fix of integer truncation from u16 (type of queue_id value) to u8
when calling i40e_vc_isvalid_queue_id function.
Signed-off-by: Martyna Szapar <martyna.szapar@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
struct boo entry[];
};
size = sizeof(struct foo) + count * sizeof(struct boo);
instance = kzalloc(size, GFP_KERNEL)
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL)
Notice that, in this case, variable size is not necessary, hence it
is removed.
This code was detected with the help of Coccinelle.
Signed-off-by: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
The reason of this revert is unexpected issue found in NVM Update tool
during NVM image downgrade. The implementation is no longer needed
since the QV tools are already aware of new FW double ShadowRAM dump
mechanism.
This patch reverts ShadowRAM checksum calculation change introduced in
commit 9d12f0c4e436 ("i40e: Revert ShadowRAM checksum calculation change")
Signed-off-by: Maciej Paczkowski <maciej.paczkowski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
Patch is adding missing input validation on VF message handling
by the PF to the functions with opcodes:
VIRTCHNL_OP_CONFIG_VSI_QUEUES = 6
VIRTCHNL_OP_CONFIG_IRQ_MAP = 7,
VIRTCHNL_OP_DISABLE_QUEUES = 9,
VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE = 14,
Signed-off-by: Martyna Szapar <martyna.szapar@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
New device ids are created to support X710 backplane and SFP+ cards.
This patch adds in i40e driver support for 2.5GbaseT and 5GbaseT speed.
It's implemented by checking I40E_CAP_PHY_TYPE_2_5GBASE_T,
I40E_CAP_PHY_TYPE_5GBASE_T bits from f/w and setting corresponding bits
in ethtool link ksettings supported and advertising masks.
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Alice Michael <alice.michael@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
In this patch fixed wrong truncation method from u16 to u8 during
validation.
It was changed by changing u8 to u32 parameter in method declaration
and arguments were changed to u32.
Signed-off-by: Grzegorz Siwik <grzegorz.siwik@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
Field num_vectors from struct virtchnl_iwarp_qvlist_info should not be
larger than num_msix_vectors_vf in the hw struct. The iwarp uses the
same set of vectors as the LAN VF driver.
Signed-off-by: Sergey Nemov <sergey.nemov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
This patch fixes the typo in I40E_CAP_PHY_TYPE mode link code.
It was fixed by changing 40000baseLR4_Full to 40000baseKR4_Full
Signed-off-by: Grzegorz Siwik <grzegorz.siwik@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
This patch fixes a bug where changing VLAN to 0 was not set until VF
restart.
Now we are setting pvid info to 0 when we have to change VLAN to 0.
Without this change when VF VLAN was changed to 0 nothing happened until
VF restart. For changing to VLAN different than 0 it worked correctly.
Signed-off-by: Grzegorz Siwik <grzegorz.siwik@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
New device ids are created to support X710/XXV710 N3000 cards.
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
This patch fixes a bug where the promiscuous mode was not being
kept when the VF switched to a new VLAN.
Now we are config two times a promiscuous mode when we switch VLAN.
Without this change when we change VF VLAN we still receive
all the packets from previous VLAN and only unicast from new VLAN.
Signed-off-by: Grzegorz Siwik <grzegorz.siwik@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
Delete code that add default Tx rule on PF. With this rule PF can see
Tx VF traffic that should go outside. For traffic from VF to another
VF default Tx rule on PF doesn't apply because of lower priority than
VF mac rule.
With this change on PF in promisc mode we can see only Rx traffic that
doesn't match any other rule (mac etc.). We can't see Tx traffic from
other VSI.
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
Move a bunch of members around to make more efficient use of
memory, eliminating holes where possible. None of these members
are hot path so cache line alignment is not very important here.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
The driver was converted to not use bool, but it was
neglected that the bools should have been converted to bit fields
as bit fields in software structures are ok, as long as they
use the correct kinds of unsigned types. This avoids
wasting lots of storage space to store single bit values.
One of the change hunks moves a variable lport out of
a group of "combinable" bit fields because all bits of
the u8 lport are valid and the variable can be packed in the
struct in struct holes.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
This patch adds function to program VSI with ethertype based filter rule,
so that all flow control frames would be disallowed from being transmitted
to the client, in order to prevent malicious VSI, especially VF from
sending out PAUSE or PFC frames, and then control other VSIs traffic.
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
Set features can have multiple features turned on|off in a single
call. Grouping these all in an if/else means after one condition
is met, other conditions/features will not be evaluated. Break
the if/else statements by feature to ensure all features will be
handled properly.
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
The variable netdev is being used in this function; remove the
__always_unused attribute from it.
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
A recent version of cppcheck falsely reports-
Variable ip.hdr is assigned a value that is never used.
ip is a union so the pointer ip.hdr is actually used when referenced as
ip.v4 and ip.v6. Silence these false reports when using cppcheck with the
--inline-suppr command-line option.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
|
Currently if the driver has an uneven amount of Rx/Tx queues
setting the coalesce settings through ethtool will result in
an error. This is happening because in the setting coalesce
flow we are reporting an error if either Rx or Tx fails.
Also, the flow for setting/getting per_q_coalesce and
setting/getting coalesce settings for the entire device
is different.
Fix these issues by adding one function, ice_set_q_coalesce(),
and another, ice_get_q_coalesce(), that both getting/setting
per_q and entire device coalesce can use. This makes handling
the error cases generic between the two flows and simplifies
__ice_set_coalesce() and __ice_get_coalesce().
Also, add a header comment to __ice_set_coalesce().
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
