When sending scan request, if hardware is not ready, scan timer was started
and scan timeout mis-reported.
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
When reading 'bf' file on debugfs, query beam forming status from firmware.
Ignore CID's that return error or return all zeros.
Remove obsolete code that used to maintain statistics on per-device basis,
as now it is reported be per-CID and current.
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Define tables for similar file entries, i.e.
- table for debugfs_create_file
- table for static parameters
- table for parameters that are members of "wil" structure
- table for blobs
- table for interrupt controllers
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
If firmware broken on the boot time, Sparrow card enumerates as
device 0x302 instead of 0x310. Allow using this ID
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Typical time for hardware reset, as measured, is about 200..250 msec.
Adjust sleeping to use more relaxed msleep, increase sleep interval
and increase total sleep time to be about 1sec
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
When resetting target in wil_target_reset(), error may occur.
Indicate error via error code. In case of error, don't attempt to further
interact with card, specifically don't attempt firmware download or
interrupts enabling.
Move wil_rx_fini() to be always executed to prevent memory leak.
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Fix Copyright headers in all files changed in 2014, to mention 2014
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
It is important to halt USER CPU first, then MAC CPU
Otherwise, race happens in the firmware
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
expose reading RGF_MAC_MTRL_COUNTER_0 in debugfs
Signed-off-by: Dedy Lansky <qca_dlansky@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The prefix suggests the number should be printed in hex, so use
the %x specifier to do that.
Found by using regex suggested by Joe Perches.
Signed-off-by: Hans Wennborg <hans@hanshq.net>
Acked-by: Avinash Patil <patila@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch introduces the use of devm_kzalloc and does away with the
kfrees in the probe and remove functions.
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch does away with free_irq in the remove function as the irq is
allocated with a devm_request_irq.
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Broadcom hardware supports auto-adjustment of TX power depending on the
currently used rate. So far all calculations were handled without any
helpers (API) using big arrays and magic offsets.
It seems Broadcom recently decided to clean this up by developing PPR.
Their wlc_ppr.h can be found in open parts of the SDK.
As we plan to implement support for rate-based TX power it makes sense
to also implement our version of PPR as well.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Don't write them as we don't have gains configured correctly yet.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This fixes workarounds on rev 6+ and cleans code slightly.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Access to PHY and radio registers is indirect on Broadcom hardware and
it seems that addressing on some MIPS SoCs may require flushing. So far
this problem was noticed on 0x4716 SoC only (marketing names: BCM4717,
BCM4718).
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Most of the PHYs use the same way of accessing registers, so move that
code to the shared place. An exception is G-PHY which sometimes access
A-PHY regs and requires special handling.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Flush radio writes as well and add some tiny optimizations (e.g.
masksetting PHY reg involves reading it, so reset the counter).
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Transport buffers weren't flushed and processed
before queueing hw recovery request to mac80211.
This could in theory result in an unwanted htt/wmi
rx events being processed while mac80211 recovers
the device and possibly interfere or even crash
the system.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
There are basically no more uses for
ar_pci->started. It is also perfectly safe to call
hif_stop without hif_start now.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Structures used by these functions are now
guaranteed to remain accessible until driver is
unregistered.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
The old comment was a little out of date. HTT Rx
ring is a more relevant problem when stopping
transport layer.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
It was possible on a host system running low on
memory to end up with no rx buffers on pci pipes.
This makes the driver more robust as it won't fail
to start if it can't allocate all rx buffers right
away. If it is fatal then upper layers will notice
trouble anyway.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
It's not really necessary to have a dedicated irq
handler just for the sake of catching early fw
crashes anymore. It is now safe to use one handler
even during early stages of device boot up.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This fixes two corner cases.
One is a race between disabling copy engine
interrupts and unhandled pending interrupts on the
host. This could end up with a runaway tasklet and
consequently memory leak of a few copy engine
rx buffers.
The other one is an unexpected (and non-maskable
via device CSR) MSI fw indication interrupt during
teardown. This could trigger the same problem as
the first corner case.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
It doesn't make much sense to overwrite send_cb
and recv_cb callbacks over and over again whenever
transport starts. Just make sure to unmask copy
engine interrupts when starting.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
It doesn't make sense to re-init irqs completely
whenever transport is started/stopped. Do it just
once upon probing/removing.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Wrong register was being set up. This could
prevent firmware from booting in some rare cases
when using legacy interrupts.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Firmware probing is done only once when driver is
registered and firmware version is guaranteed to
remain the same until driver is unregistered.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Sometimes users forget to include important info like firmware version,
so better to print all the info.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Better to have a clear name for the function. While at it, clear up the title
for the register dump.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Store the firmware registers and other relevant data to a firmware crash dump
file and provide it to user-space via debugfs. Should help with figuring out
why the firmware crashed.
kvalo: remove dbglog support, rework and refactor the code to avoid ifdefs and
otherwise simplify it as well
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
ath10k_pci_diag_read32() is for reading u32 from a device and ath10k_pci_diag_read_hi()
is a helper for reading data using "host interest" table.
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Service mapping for main firmware branch was incorrectly used for 10.x firmware
and vice-versa. This caused wmi_services in debugfs to print wrong values.
This fixes commit cff990ce7d ("ath10k: fix wmi service bitmap debug") where
for some reason there was either a conflict that wasn't resolved properly or
git had a bad day.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
The new_ctx pointer is set only for non-chanctx drivers. This yielded a
crash for chanctx-based drivers during channel switch finalization:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
IP: ieee80211_vif_use_reserved_switch+0x71c/0xb00 [mac80211]
Use an adequate chanctx pointer to fix this.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull networking fixes from David Miller:
"Here are some bug fixes that have piled up during ksummit/linuxcon.
1) Fix endian problems in ibmveth, from Anton Blanchard.
2) IPV6 routing code does GFP_KERNEL allocation in atomic, fix from
Benjamin Block.
3) SCTP association fixes from Daniel Borkmann.
4) When multiple VLAN headers are present we have to make sure the
second and subsequent ones are pullable in the SKB otherwise we
blindly dereference garbage. From Jiri Benc.
5) The argument adjustment of the signature of hlist_add_after*()
introduced a regression in the batman-adv code, fix from Sven
Eckelmann.
6) Fix TX hang handling to avoid a panic in i40e, from Anjali Singhai
Jain.
7) PTP flag test is inverted in i40e driver, from Jesse Brandeburg.
8) ATM LEC driver needs to hold RTNL mutex over MTU changes, from
Chas Williams.
9) Truncate packets larger then the TPACKET_V3 format configured
buffers, otherwise we overwrite past the end of said buffers.
From Eric Dumazet.
10) Fix endianness bugs in qlcnic firmware handling, from Rajesh
Borundia and Shahed Shaikh.
11) CXGB4 sometimes doesn't get all of the TX completion events it
should resulting in SKBs getting stuck in the TX queue, from
Hariprasad Shenai.
12) When the FEC chip's PTP clock is disabled, you can't access the
register. Add necessary checks to avoid the resulting hang, from
Fugang Duan"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (37 commits)
drivers: isdn: eicon: xdi_msg.h: Fix typo in #ifndef
net: sctp: fix suboptimal edge-case on non-active active/retrans path selection
net: sctp: spare unnecessary comparison in sctp_trans_elect_best
net: ethernet: broadcom: bnx2x: Remove redundant #ifdef
ibmveth: Fix endian issues with rx_no_buffer statistic
net: xgene: fix possible NULL dereference in xgene_enet_free_desc_rings()
openvswitch: fix panic with multiple vlan headers
net: ipv6: fib: don't sleep inside atomic lock
net: fec: ptp: avoid register access when ipg clock is disabled
cxgb4: Free completed tx skbs promptly
cxgb4: Fix race condition in cleanup
sctp: not send SCTP_PEER_ADDR_CHANGE notifications with failed probe
bnx2x: Revert UNDI flushing mechanism
qlcnic: Fix endianess issue in firmware load from file operation
qlcnic: Fix endianess issue in FW dump template header
qlcnic: Fix flash access interface to application
MAINTAINERS: Add section for MRF24J40 IEEE 802.15.4 radio driver
macvlan: Allow setting multicast filter on all macvlan types
packet: handle too big packets for PACKET_V3
MAINTAINERS: add entry for ec_bhf driver
...
Test for definedness of the macro which is actually defined (the
change is hard to see: it is s/SSS/SSA/).
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
In SCTP, selection of active (T.ACT) and retransmission (T.RET)
transports is being done whenever transport control operations
(UP, DOWN, PF, ...) are engaged through sctp_assoc_control_transport().
Commits 4c47af4d5e ("net: sctp: rework multihoming retransmission
path selection to rfc4960") and a7288c4dd5 ("net: sctp: improve
sctp_select_active_and_retran_path selection") have both improved
it towards a more fine-grained and optimal path selection.
Currently, the selection algorithm for T.ACT and T.RET is as follows:
1) Elect the two most recently used ACTIVE transports T1, T2 for
T.ACT, T.RET, where T.ACT<-T1 and T1 is most recently used
2) In case primary path T.PRI not in {T1, T2} but ACTIVE, set
T.ACT<-T.PRI and T.RET<-T1
3) If only T1 is ACTIVE from the set, set T.ACT<-T1 and T.RET<-T1
4) If none is ACTIVE, set T.ACT<-best(T.PRI, T.RET, T3) where
T3 is the most recently used (if avail) in PF, set T.RET<-T.PRI
Prior to above commits, 4) was simply a camp on T.ACT<-T.PRI and
T.RET<-T.PRI, ignoring possible paths in PF. Camping on T.PRI is
still slightly suboptimal as it can lead to the following scenario:
Setup:
<A> <B>
T1: p1p1 (10.0.10.10) <==> .'`) <==> p1p1 (10.0.10.12) <= T.PRI
T2: p1p2 (10.0.10.20) <==> (_ . ) <==> p1p2 (10.0.10.22)
net.sctp.rto_min = 1000
net.sctp.path_max_retrans = 2
net.sctp.pf_retrans = 0
net.sctp.hb_interval = 1000
T.PRI is permanently down, T2 is put briefly into PF state (e.g. due to
link flapping). Here, the first time transmission is sent over PF path
T2 as it's the only non-INACTIVE path, but the retransmitted data-chunks
are sent over the INACTIVE path T1 (T.PRI), which is not good.
After the patch, it's choosing better transports in both cases by
modifying step 4):
4) If none is ACTIVE, set T.ACT_new<-best(T.ACT_old, T3) where T3 is
the most recently used (if avail) in PF, set T.RET<-T.ACT_new
This will still select a best possible path in PF if available (which
can also include T.PRI/T.RET), and set both T.ACT/T.RET to it.
In case sctp_assoc_control_transport() *just* put T.ACT_old into INACTIVE
as it transitioned from ACTIVE->PF->INACTIVE and stays in INACTIVE just
for a very short while before going back ACTIVE, it will guarantee that
this path will be reselected for T.ACT/T.RET since T3 (PF) is not
available.
Previously, this was not possible, as we would only select between T.PRI
and T.RET, and a possible T3 would be NULL due to the fact that we have
just transitioned T3 in sctp_assoc_control_transport() from PF->INACTIVE
and would select a suboptimal path when T.PRI/T.RET have worse properties.
In the case that T.ACT_old permanently went to INACTIVE during this
transition and there's no PF path available, plus T.PRI and T.RET are
INACTIVE as well, we would now camp on T.ACT_old, but if everything is
being INACTIVE there's really not much we can do except hoping for a
successful HB to bring one of the transports back up again and, thus
cause a new selection through sctp_assoc_control_transport().
Now both tests work fine:
Case 1:
1. T1 S(ACTIVE) T.ACT
T2 S(ACTIVE) T.RET
2. T1 S(ACTIVE) T.ACT, T.RET
T2 S(PF)
3. T1 S(ACTIVE) T.ACT, T.RET
T2 S(INACTIVE)
5. T1 S(PF) T.ACT, T.RET
T2 S(INACTIVE)
[ 5.1 T1 S(INACTIVE) T.ACT, T.RET
T2 S(INACTIVE) ]
6. T1 S(ACTIVE) T.ACT, T.RET
T2 S(INACTIVE)
7. T1 S(ACTIVE) T.ACT
T2 S(ACTIVE) T.RET
Case 2:
1. T1 S(ACTIVE) T.ACT
T2 S(ACTIVE) T.RET
2. T1 S(PF)
T2 S(ACTIVE) T.ACT, T.RET
3. T1 S(INACTIVE)
T2 S(ACTIVE) T.ACT, T.RET
5. T1 S(INACTIVE)
T2 S(PF) T.ACT, T.RET
[ 5.1 T1 S(INACTIVE)
T2 S(INACTIVE) T.ACT, T.RET ]
6. T1 S(INACTIVE)
T2 S(ACTIVE) T.ACT, T.RET
7. T1 S(ACTIVE) T.ACT
T2 S(ACTIVE) T.RET
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When both transports are the same, we don't have to go down that
road only to realize that we will return the very same transport.
We are guaranteed that curr is always non-NULL. Therefore, just
short-circuit this special case.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nothing defines _ASM_GENERIC_INT_L64_H, it is a weird way to check for
64 bit longs, and u64 should be printed using %llx anyway.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hidden away in the last 8 bytes of the buffer_list page is a solitary
statistic. It needs to be byte swapped or else ethtool -S will
produce numbers that terrify the user.
Since we do this in multiple places, create a helper function with a
comment explaining what is going on.
Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
A NULL pointer dereference is possible for the argument ring->buf_pool
which is passed to xgene_enet_free_desc_ring(), as ring could be NULL.
And now since NULL pointers are being checked for before the calls to
xgene_enet_free_desc_ring(), might as well take advantage of them and
not call the function if the argument would be NULL.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When there are multiple vlan headers present in a received frame, the first
one is put into vlan_tci and protocol is set to ETH_P_8021Q. Anything in the
skb beyond the VLAN TPID may be still non-linear, including the inner TCI
and ethertype. While ovs_flow_extract takes care of IP and IPv6 headers, it
does nothing with ETH_P_8021Q. Later, if OVS_ACTION_ATTR_POP_VLAN is
executed, __pop_vlan_tci pulls the next vlan header into vlan_tci.
This leads to two things:
1. Part of the resulting ethernet header is in the non-linear part of the
skb. When eth_type_trans is called later as the result of
OVS_ACTION_ATTR_OUTPUT, kernel BUGs in __skb_pull. Also, __pop_vlan_tci
is in fact accessing random data when it reads past the TPID.
2. network_header points into the ethernet header instead of behind it.
mac_len is set to a wrong value (10), too.
Reported-by: Yulong Pei <ypei@redhat.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current kernel hang on i.MX6SX with rootfs mount from MMC.
The root cause is that ptp uses a periodic timer to access enet register
even if ipg clock is disabled.
FEC ptp driver start one period timer to read 1588 counter register in the
ptp init function that is called after FEC driver is probed.
To save power, after FEC probe finish, FEC driver disable all clocks including
ipg clock that is needed for register access.
i.MX5x, i.MX6q/dl/sl FEC register access don't cause system hang when ipg clock
is disabled, just return zero value. But for i.MX6sx SOC, it cause system hang.
To avoid the issue, we need to check ptp clock status before ptp timer count access.
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This small set of fixes addresses a few issues introduced during the
merge window, including:
- Fix typo in I-cache detection that was causing us to treat all
I-caches as aliasing
- Hook up memfd_create and getrandom syscalls for native and compat
- Revert a temporary hack for defconfig builds in -next (the audit
tree changes didn't make it in this merge window)
- A couple of UEFI fixes for TEXT_OFFSET fuzzing and /memreserve/
- A simple sparsemem fix for 48-bit physical addressing
- Small defconfig updates to get autotesters working with X-gene
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"This small set of fixes addresses a few issues introduced during the
merge window, including:
- fix typo in I-cache detection that was causing us to treat all
I-caches as aliasing
- hook up memfd_create and getrandom syscalls for native and compat
- revert a temporary hack for defconfig builds in -next (the audit
tree changes didn't make it in this merge window)
- a couple of UEFI fixes for TEXT_OFFSET fuzzing and /memreserve/
- a simple sparsemem fix for 48-bit physical addressing
- small defconfig updates to get autotesters working with X-gene"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
Revert "arm64: Do not invoke audit_syscall_* functions if !CONFIG_AUDIT_SYSCALL"
arm64: mm: update max pa bits to 48
arm64: ignore DT memreserve entries when booting in UEFI mode
arm64: configs: Enable X-Gene SATA and ethernet in defconfig
arm64: align randomized TEXT_OFFSET on 4 kB boundary
asm-generic: add memfd_create system call to unistd.h
arm64: compat: wire up memfd_create and getrandom syscalls for aarch32
arm64: fix typo in I-cache policy detection
The fixes include:
* A patch to fix a crash in the VT-d driver when devices with a
driver attached are hot-unplugged
* A patch for the AMD IOMMU driver to fix a crash with device
assignment of 32 bit PCI devices to KVM guests
* Fix for a copy&paste error in generic IOMMU code. Now the
right function pointer is checked before calling.
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Merge tag 'iommu-fixes-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
"The fixes include:
- fix a crash in the VT-d driver when devices with a driver attached
are hot-unplugged
- fix a AMD IOMMU driver crash with device assignment of 32 bit PCI
devices to KVM guests
- fix for a copy&paste error in generic IOMMU code. Now the right
function pointer is checked before calling"
* tag 'iommu-fixes-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/core: Check for the right function pointer in iommu_map()
iommu/amd: Fix cleanup_domain for mass device removal
iommu/vt-d: Defer domain removal if device is assigned to a driver
