__netpoll_cleanup() is called in netconsole_netdev_event() while holding a
spinlock. Release/acquire the spinlock before/after it and restart the
loop. Also, disable the netconsole completely, because we won't have chance
after the restart of the loop, and might end up in a situation where
nt->enabled == 1 and nt->np.dev == NULL.
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
New scheme calls for 3rd party VPD at offset 0x0 and Chelsio VPD at offset
0x400 of the function. If no 3rd party VPD is present, then a copy of
Chelsio's VPD will be at offset 0x0 to keep in line with PCI spec which
requires the VPD to be present at offset 0x0.
Signed-off-by: Santosh Rastapur <santosh@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the event that register_netdev() failed, the rrpriv->evt_ring
allocation would have not been freed.
Signed-off-by: David Oostdyk <daveo@ll.mit.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit f4a46d1f46 introduced a bug where
the ifconfig stats would remain 0 for phylib devices. This is due to
tp->link_up flag never becoming true causing tg3_periodic_fetch_stats()
to return.
The link_up flag was being updated in tg3_test_and_report_link_chg()
after setting up the phy. This function however, is not called for
phylib devices since the driver does not do the phy setup.
This patch moves the link_up flag update into the common
tg3_link_report() function that gets called for phylib devices as well
for non phylib devices when the link state changes.
To avoid updating link_up twice, we replace tg3_carrier_...() calls that
are followed by tg3_link_report(), with netif_carrier_...(). We can then
remove the unused tg3_carrier_on() function.
CC: <stable@vger.kernel.org>
Reported-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix a problem in which iSCSI-boot installation fails when switching SFP+ boot
port and moving the SFP+ module prior to boot. The SFP+ insertion triggers an
interrupt which configures the SFP+ module wrongly before interface is loaded.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a KR2 device is connected to a KR link-partner, sometimes it requires
disabling KR2 for the link to come up. To get a KR2 link up later, in case no
base pages are seen, the KR2 is restored. The problem was that some link
partners cleared their advertised BP/NP after around two seconds, causing the
driver to disable/enable KR2 link all the time.
The fix was to wait at least 5 seconds before checking KR2 recovery.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Macvlan already supports hw address filters. Set the IFF_UNICAST_FLT
so that it doesn't needlesly enter PROMISC mode when macvlans are
stacked.
Signed-of-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a team port is removed, unsync all devices addresses that may have
been synched to the port devices.
CC: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
When autoneg has been disabled in the PHY (Marvell 88E1118 here), auto
negotiation between MAC and PHY seem non-functional anymore. The only
way I found to workaround this is to manually configure the MAC with the
settings sent to the PHY earlier.
Signed-off-by: Phil Sutter <phil.sutter@viprinet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, if we set up netconsole over bonding and release a slave,
netconsole will stop logging on the whole bonding device. Change the
behavior to stop the netconsole only when the last slave is released.
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The following script will produce a kernel oops:
sudo ip netns add v
sudo ip netns exec v ip ad add 127.0.0.1/8 dev lo
sudo ip netns exec v ip link set lo up
sudo ip netns exec v ip ro add 224.0.0.0/4 dev lo
sudo ip netns exec v ip li add vxlan0 type vxlan id 42 group 239.1.1.1 dev lo
sudo ip netns exec v ip link set vxlan0 up
sudo ip netns del v
where inspect by gdb:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 107]
0xffffffffa0289e33 in ?? ()
(gdb) bt
#0 vxlan_leave_group (dev=0xffff88001bafa000) at drivers/net/vxlan.c:533
#1 vxlan_stop (dev=0xffff88001bafa000) at drivers/net/vxlan.c:1087
#2 0xffffffff812cc498 in __dev_close_many (head=head@entry=0xffff88001f2e7dc8) at net/core/dev.c:1299
#3 0xffffffff812cd920 in dev_close_many (head=head@entry=0xffff88001f2e7dc8) at net/core/dev.c:1335
#4 0xffffffff812cef31 in rollback_registered_many (head=head@entry=0xffff88001f2e7dc8) at net/core/dev.c:4851
#5 0xffffffff812cf040 in unregister_netdevice_many (head=head@entry=0xffff88001f2e7dc8) at net/core/dev.c:5752
#6 0xffffffff812cf1ba in default_device_exit_batch (net_list=0xffff88001f2e7e18) at net/core/dev.c:6170
#7 0xffffffff812cab27 in cleanup_net (work=<optimized out>) at net/core/net_namespace.c:302
#8 0xffffffff810540ef in process_one_work (worker=0xffff88001ba9ed40, work=0xffffffff8167d020) at kernel/workqueue.c:2157
#9 0xffffffff810549d0 in worker_thread (__worker=__worker@entry=0xffff88001ba9ed40) at kernel/workqueue.c:2276
#10 0xffffffff8105870c in kthread (_create=0xffff88001f2e5d68) at kernel/kthread.c:168
#11 <signal handler called>
#12 0x0000000000000000 in ?? ()
#13 0x0000000000000000 in ?? ()
(gdb) fr 0
#0 vxlan_leave_group (dev=0xffff88001bafa000) at drivers/net/vxlan.c:533
533 struct sock *sk = vn->sock->sk;
(gdb) l
528 static int vxlan_leave_group(struct net_device *dev)
529 {
530 struct vxlan_dev *vxlan = netdev_priv(dev);
531 struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
532 int err = 0;
533 struct sock *sk = vn->sock->sk;
534 struct ip_mreqn mreq = {
535 .imr_multiaddr.s_addr = vxlan->gaddr,
536 .imr_ifindex = vxlan->link,
537 };
(gdb) p vn->sock
$4 = (struct socket *) 0x0
The kernel calls `vxlan_exit_net` when deleting the netns before shutting down
vxlan interfaces. Later the removal of all vxlan interfaces, where `vn->sock`
is already gone causes the oops. so we should manually shutdown all interfaces
before deleting `vn->sock` as the patch does.
Signed-off-by: Zang MingJie <zealot0630@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linux is free to call ethtool ops as soon as a netdev exists when probe
finishes. However, we only allocate vmxnet3 tx/rx queues and initialize the
rx_buf_per_pkt field in struct vmxnet3_adapter when the interface is
opened (UP).
Signed-off-by: Bhavesh Davda <bhavesh@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 37706996 "mlx4_en: fix allocation of CPU affinity reverse-map" fixed
a bug when mlx4_dev->caps.comp_pool is larger from the device rx rings, but
introduced a regression.
When the mlx4_core is activating its "legacy mode" (e.g when running in SRIOV
mode) w.r.t to EQs/IRQs usage, comp_pool becomes zero and we're crashing on
divide by zero alloc_cpu_rmap.
Fix that by enabling RFS only when running in non-legacy mode.
Reported-by: Yan Burman <yanb@mellanox.com>
Cc: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure we cleanup all MAC related resources (entries in the port MAC
table and steering rules) when stopping a port or when the driver is unloaded.
The leak was introduced by commit 07cb4b0a "net/mlx4_en: Manage hash of MAC
addresses per port".
Signed-off-by: Yan Burman <yanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove unnecessary use of workqueue for the device MAC address setting
flow, and fix a race when setting MAC address which was introduced by
commit c07cb4b0a "net/mlx4_en: Manage hash of MAC addresses per port"
The race happened when mlx4_en_replace_mac was being executed in parallel
with a successive call to ndo_set_mac_address, e.g witn an A/B/A MAC
setting configuration test, the third set fails.
With this change we also properly report an error if set MAC fails.
Signed-off-by: Yan Burman <yanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The set_param_l function assumes casting a u64 pointer to a u32 pointer
allows to access the lower 32bits, but it results in writing the upper
32 bits on big endian systems.
The fixed function reads the upper 32 bits of the 64 argument, and or's
them with the 32 bits of the 32-bit value passed to the function.
Since this is now a "read-modify-write" operation, we got many
"unintialized variable" warnings which needed to be fixed as well.
Reported-by: Alexander Schmidt <alexschm@de.ibm.com>.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Older kernels detect DMFS (device-managed flow steering) from the HCA
device capability directly, regardless of whether the capability was
enabled in INIT_HCA, this is fixed by commit 7b8157bed "mlx4_core: Adjustments
to Flow Steering activation logic for SR-IOV"
To protect against guests running kernels without this fix, the host driver
should turn off the DMFS capability bit in mlx4_QUERY_DEV_CAP_wrapper.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guests kernels may not correctly detect if DMFS (device-enabled flow steering) is
activated by the host. If DMFS is activated, the master should return error to guests
which try to use the B0-steering flow calls (mlx4_QP_ATTACH).
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes some annoying messages like 'Error reading PHY register' and
'Hardware Erorr' and saves several seconds on reboot.
Cc: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Borislav Petkov <bp@suse.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch removes redundant actions from driver and fixes its interaction
with actions in pci-bus runtime power management code.
It removes pci_save_state() from __e1000_shutdown() for normal adapters,
PCI bus callbacks pci_pm_*() will do all this for us. Now __e1000_shutdown()
switches to D3-state only quad-port adapters, because they needs quirk for
clearing false-positive error from downsteam pci-e port.
pci_save_state() now called after clearing bus-master bit, thus __e1000_resume()
and e1000_io_slot_reset() must set it back after restoring configuration space.
This patch set get_link_status before calling pm_runtime_put() in e1000_open()
to allow e1000_idle() get real link status and schedule first runtime suspend.
This patch also enables wakeup for device if management mode is enabled
(like for WoL) as result pci_prepare_to_sleep() would setup wakeup without
special actions like custom 'enable_wakeup' sign.
Cc: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Borislav Petkov <bp@suse.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch removes redundant and unbalanced pci_disable_device() from
__e1000_shutdown(). pci_clear_master() is enough, device can go into
suspended state with elevated enable_cnt.
Bug was introduced in commit 23606cf5d1
("e1000e / PCI / PM: Add basic runtime PM support (rev. 4)") in v2.6.35
Cc: Bruce Allan <bruce.w.allan@intel.com>
CC: Stable <stable@kernel.org>
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Borislav Petkov <bp@suse.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
John W. Linville says:
====================
This time just passing along a big batch of fixes from Johannes...
For the mac80211 bits:
"Here I have fixes from Ben Greear for stray work items when deleting
interfaces, another idle handling fix from Felix, a fix from Marco ro a
mesh PS buffering crash and I have a fix for the VHT MCS calculation in
association request frames and more nl80211 feature advertising removal
as well as a workaround to increase the dump size if the SKB overhead is
too large. For 3.10 I already have a complete fix queued, but that also
requires (simple) userspace changes."
And for the iwlwifi bits:
"The patches from Dor fix a bunch of calibration issues in the new MVM
driver, and Emmanuel has a number of fixes there as well. Also, we
decided to disable 8k A-MSDU by default, so that's in there. My own
patches are addressing an issue we found with the new devices but that
seems to also exist on older ones, the DMA writeback the devices do can
be delayed and cause issues. The fix is unfortunately relatively large
and depends on two other changes (to not be hugely conflicting), but I
think it's still worth it at this point."
As Johannes says, it is a bit large. But I hope it is still early
enough in the cycle to make that worthwhile.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The SLIPORT_SEMAPHORE register shadowed in the
config-space may not reflect the correct POST stage after
an EEH reset in BE2/3; it may return FW_READY state even though
FW is not ready. This causes the driver to prematurely
poll the FW mailbox and fail.
For BE2/3 use the CSR-BAR/0xac instead.
Reported-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings says:
====================
Fix regressions introduced by the last set of fixes (sorry):
1. Potential deadlock when disabling TX queues.
2. RX was broken on architectures other than x86 and powerpc.
I still expect to send one more bug fix for 3.9, but as it sometimes
takes days to reproduce the bug it's going to take a couple of weeks of
testing to be confident that it's really fixed.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
RX DMA buffers start at an offset of EFX_PAGE_IP_ALIGN bytes from the
start of a cache line. This offset obviously needs to be included in
the virtual address, but this was missed in commit b590ace09d
('sfc: Fix efx_rx_buf_offset() in the presence of swiotlb') since
EFX_PAGE_IP_ALIGN is equal to 0 on both x86 and powerpc.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
efx_device_detach_sync() locks all TX queues before marking the device
detached and thus disabling further TX scheduling. But it can still
be interrupted by TX completions which then result in TX scheduling in
soft interrupt context. This will deadlock when it tries to acquire
a TX queue lock that efx_device_detach_sync() already acquired.
To avoid deadlock, we must use netif_tx_{,un}lock_bh().
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
While PCI card faces EEH errors, reset (usually hot reset) is
expected to recover from the EEH errors. After EEH core finishes
the reset, the driver callback (be_eeh_reset) is called and wait
the firmware to complete POST successfully. The original code would
return with error once detecting failure during POST stage. That
seems not enough.
The patch forces the driver (be_eeh_reset) to wait the firmware
completes POST until timeout, instead of returning error upon
detection POST failure immediately. Also, it would improve the
reliability of the EEH funtionality of the driver.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Acked-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We should reset nf settings bond to the skb as ipip/ipgre do.
If not, the conntrack/nat info bond to the origin packet may continually
redirect the packet to vxlan interface causing a routing loop.
this is the scenario:
VETP VXLAN Gateway
/----\ /---------------\
| | | |
| vx+--+vx --NAT-> eth0+--> Internet
| | | |
\----/ \---------------/
when there are any packet coming from internet to the vetp, there will be lots
of garbage packets coming out the gateway's vxlan interface, but none actually
sent to the physical interface, because they are redirected back to the vxlan
interface in the postrouting chain of NAT rule, and dmesg complains:
Mar 1 21:52:53 debian kernel: [ 8802.997699] Dead loop on virtual device vxlan0, fix it urgently!
Mar 1 21:52:54 debian kernel: [ 8804.004907] Dead loop on virtual device vxlan0, fix it urgently!
Mar 1 21:52:55 debian kernel: [ 8805.012189] Dead loop on virtual device vxlan0, fix it urgently!
Mar 1 21:52:56 debian kernel: [ 8806.020593] Dead loop on virtual device vxlan0, fix it urgently!
the patch should fix the problem
Signed-off-by: Zang MingJie <zealot0630@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Kirsher says:
===================
This series contains fixes to e1000e and igb.
The e1000e fix resolves an issue at 1000Mbps link speed, where one of the
MAC's internal clocks can be stopped for up to 4us when entering K1 (a
power mode of the MAC-PHY interconnect). If the MAC is waiting for
completion indications for 2 DMA write requests into Host memory
(e.g. descriptor writeback or Rx packet writing) and the
indications occur while the clock is stopped, both indications will be
missed by the MAC causing the MAC to wait for the completion indications
and be unable to generate further DMA write requests. This results in an
apparent hardware hang. The patch works-around the issue by disabling
the de-assertion of the clock request when 1000Mbps link is acquired (K1
must be disabled while doing this).
The igb fix to drop BUILD_BUG_ON check from igb_build_rx_buffer resolves
a build error on s390 devices. The igb driver was throwing a build error
due to the fact that a frame built using build_skb would be larger than 2K.
Since this is not likely to change at any point in the future we are better
off just dropping the check since we already had a check in
igb_set_rx_buffer_len that will just disable the usage of build_skb anyway.
The igb fix for i210 link setup changes the setup copper link function
to use a switch statement, so that the appropriate setup link function
is called for the given PHY types.
Lastly, the igb fix for a lockdep issue in igb_get_i2c_client resolves
the issue by re-factoring the initialization and usage of the i2c_client.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
"A moderately sized pile of fixes, some specifically for merge window
introduced regressions although others are for longer standing items
and have been queued up for -stable.
I'm kind of tired of all the RDS protocol bugs over the years, to be
honest, it's way out of proportion to the number of people who
actually use it.
1) Fix missing range initialization in netfilter IPSET, from Jozsef
Kadlecsik.
2) ieee80211_local->tim_lock needs to use BH disabling, from Johannes
Berg.
3) Fix DMA syncing in SFC driver, from Ben Hutchings.
4) Fix regression in BOND device MAC address setting, from Jiri
Pirko.
5) Missing usb_free_urb in ISDN Hisax driver, from Marina Makienko.
6) Fix UDP checksumming in bnx2x driver for 57710 and 57711 chips,
fix from Dmitry Kravkov.
7) Missing cfgspace_lock initialization in BCMA driver.
8) Validate parameter size for SCTP assoc stats getsockopt(), from
Guenter Roeck.
9) Fix SCTP association hangs, from Lee A Roberts.
10) Fix jumbo frame handling in r8169, from Francois Romieu.
11) Fix phy_device memory leak, from Petr Malat.
12) Omit trailing FCS from frames received in BGMAC driver, from Hauke
Mehrtens.
13) Missing socket refcount release in L2TP, from Guillaume Nault.
14) sctp_endpoint_init should respect passed in gfp_t, rather than use
GFP_KERNEL unconditionally. From Dan Carpenter.
15) Add AISX AX88179 USB driver, from Freddy Xin.
16) Remove MAINTAINERS entries for drivers deleted during the merge
window, from Cesar Eduardo Barros.
17) RDS protocol can try to allocate huge amounts of memory, check
that the user's request length makes sense, from Cong Wang.
18) SCTP should use the provided KMALLOC_MAX_SIZE instead of it's own,
bogus, definition. From Cong Wang.
19) Fix deadlocks in FEC driver by moving TX reclaim into NAPI poll,
from Frank Li. Also, fix a build error introduced in the merge
window.
20) Fix bogus purging of default routes in ipv6, from Lorenzo Colitti.
21) Don't double count RTT measurements when we leave the TCP receive
fast path, from Neal Cardwell."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (61 commits)
tcp: fix double-counted receiver RTT when leaving receiver fast path
CAIF: fix sparse warning for caif_usb
rds: simplify a warning message
net: fec: fix build error in no MXC platform
net: ipv6: Don't purge default router if accept_ra=2
net: fec: put tx to napi poll function to fix dead lock
sctp: use KMALLOC_MAX_SIZE instead of its own MAX_KMALLOC_SIZE
rds: limit the size allocated by rds_message_alloc()
MAINTAINERS: remove eexpress
MAINTAINERS: remove drivers/net/wan/cycx*
MAINTAINERS: remove 3c505
caif_dev: fix sparse warnings for caif_flow_cb
ax88179_178a: ASIX AX88179_178A USB 3.0/2.0 to gigabit ethernet adapter driver
sctp: use the passed in gfp flags instead GFP_KERNEL
ipv[4|6]: correct dropwatch false positive in local_deliver_finish
l2tp: Restore socket refcount when sendmsg succeeds
net/phy: micrel: Disable asymmetric pause for KSZ9021
bgmac: omit the fcs
phy: Fix phy_device_free memory leak
bnx2x: Fix KR2 work-around condition
...
This patch fixes a lockdep warning in igb_get_i2c_client by
refactoring the initialization and usage of the i2c_client
completely. There is no on the fly allocation of the single
client needed today.
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch changes the setup copper link function to use a switch
statement for the PHY id's available for the given PHY types. It
also adds a case for the I210 PHY id, so the appropriate setup link
function is called for it.
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
On s390 the igb driver was throwing a build error due to the fact that a frame
built using build_skb would be larger than 2K. Since this is not likely to
change at any point in the future we are better off just dropping the check
since we already had a check in igb_set_rx_buffer_len that will just disable
the usage of build_skb anyway.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
At 1000Mbps link speed, one of the MAC's internal clocks can be stopped for
up to 4us when entering K1 (a power mode of the MAC-PHY interconnect). If
the MAC is waiting for completion indications for 2 DMA write requests into
Host memory (e.g. descriptor writeback or Rx packet writing) and the
indications occur while the clock is stopped, both indications will be
missed by the MAC causing the MAC to wait for the completion indications
and be unable to generate further DMA write requests. This results in an
apparent hardware hang.
Work-around the issue by disabling the de-assertion of the clock request
when 1000Mbps link is acquired (K1 must be disabled while doing this).
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
build error cause by
Commit ff43da86c6
("NET: FEC: dynamtic check DMA desc buff type")
drivers/net/ethernet/freescale/fec.c: In function ‘fec_enet_get_nextdesc’:
drivers/net/ethernet/freescale/fec.c:215:18: error: invalid use of undefined type ‘struct bufdesc_ex’
drivers/net/ethernet/freescale/fec.c: In function ‘fec_enet_get_prevdesc’:
drivers/net/ethernet/freescale/fec.c:224:18: error: invalid use of undefined type ‘struct bufdesc_ex’
drivers/net/ethernet/freescale/fec.c: In function ‘fec_enet_start_xmit’:
drivers/net/ethernet/freescale/fec.c:286:37: error: arithmetic on pointer to an incomplete type
drivers/net/ethernet/freescale/fec.c:287:13: error: arithmetic on pointer to an incomplete type
drivers/net/ethernet/freescale/fec.c:324:7: error: dereferencing pointer to incomplete type etc....
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This flow happens when we get a failed single Tx response
on an AMPDU queue. In this case, the frame won't be sent
any more. So we need to move the window on the recipient
side. This is done by a BAR.
Now if we are in the following case: 10, 12 and 13 are ACKed
and 11 isn't.
10 11 12 13.
V X V V
Then, 11 will be sent 16 times as an MPDU (as oppsed to
A-MPDU). If this failed, we are entering the flow described
above. So we need to send a BAR with ssn = 12.
But in this case, the scheduler will tell us to free frames
up to 13 (included).
So, it is perfectly possible to get a failed single Tx
response on an AMPDU queue that makes the scheduler's ssn
jump by more than 1 single packet.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Make the rssi more accurate by taking in count per-chain AGC
values. Without this, the RSSI reports inaccurate values.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since the device is being restarted, all the Rx / Tx Block
Ack sessions are been wiped out by the driver. So ignore
the requests from mac80211 that stops Tx agg while
reconfiguring the device.
Note that stopping a non-existing Rx BA session is harmless,
so just honor mac80211's request.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This fix removes the override of calibration request values sent
to the FW.
Due to that, the sending of default values to now implemented
calibrations is removed.
Signed-off-by: Dor Shaish <dor.shaish@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The phy_cfg is given from the TLV value and does not have to be
built by us.
Signed-off-by: Dor Shaish <dor.shaish@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
We must set the valid TX antennas number in the ucode before
sending the phy_cfg_cmd and request for calibrations.
Signed-off-by: Dor Shaish <dor.shaish@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This situation is clearly an error situation and the only
way to recover is to restart the driver / fw.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This is a resubmission.
Added kfree() in ax88179_get_eeprom to prevent memory leakage.
Modified "__le16 rxctl" to "u16 rxctl" in "struct ax88179_data" and removed pointless casts.
Removed asix_init and asix_exit functions and added "module_usb_driver(ax88179_178a_driver)".
Fixed endianness issue on big endian systems and verified this driver on iBook G4.
Removed steps that change net->features in ax88179_set_features function.
Added "const" to ethtool_ops structure and fixed the coding style of AX88179_BULKIN_SIZE array.
Fixed the issue that the default MTU is not 1500.
Added ax88179_change_mtu function and enabled the hardware jumbo frame function to support an
MTU higher than 1500.
Fixed indentation and empty line coding style errors.
The _nopm version usb functions were added to access register in suspend and resume functions.
Serveral variables allocted dynamically were removed and replaced by stack variables.
ax88179_get_eeprom were modified from asix_get_eeprom in asix_common.
This patch adds a driver for ASIX's AX88179 family of USB 3.0/2.0
to gigabit ethernet adapters. It's based on the AX88xxx driver but
the usb commands used to access registers for AX88179 are completely different.
This driver had been verified on x86 system with AX88179/AX88178A and
Sitcomm LN-032 USB dongles.
Signed-off-by: Freddy Xin <freddy@asix.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull MIPS updates from Ralf Baechle:
o Add basic support for the Mediatek/Ralink Wireless SoC family.
o The Qualcomm Atheros platform is extended by support for the new
QCA955X SoC series as well as a bunch of patches that get the code
ready for OF support.
o Lantiq and BCM47XX platform have a few improvements and bug fixes.
o MIPS has sent a few patches that get the kernel ready for the
upcoming microMIPS support.
o The rest of the series is made up of small bug fixes and cleanups
that relate to various parts of the MIPS code. The biggy in there is
a whitespace cleanup. After I was sent another set of whitespace
cleanup patches I decided it was the time to clean the whitespace
"issues" for once and and that touches many files below arch/mips/.
Fix up silly conflicts, mostly due to whitespace cleanups.
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (105 commits)
MIPS: Quit exporting kernel internel break codes to uapi/asm/break.h
MIPS: remove broken conditional inside vpe loader code
MIPS: SMTC: fix implicit declaration of set_vi_handler
MIPS: early_printk: drop __init annotations
MIPS: Probe for and report hardware virtualization support.
MIPS: ath79: add support for the Qualcomm Atheros AP136-010 board
MIPS: ath79: add USB controller registration code for the QCA955X SoCs
MIPS: ath79: add PCI controller registration code for the QCA955X SoCs
MIPS: ath79: add WMAC registration code for the QCA955X SoCs
MIPS: ath79: register UART for the QCA955X SoCs
MIPS: ath79: add QCA955X specific glue to ath79_device_reset_{set, clear}
MIPS: ath79: add GPIO setup code for the QCA955X SoCs
MIPS: ath79: add IRQ handling code for the QCA955X SoCs
MIPS: ath79: add clock setup code for the QCA955X SoCs
MIPS: ath79: add SoC detection code for the QCA955X SoCs
MIPS: ath79: add early printk support for the QCA955X SoCs
MIPS: ath79: fix WMAC IRQ resource assignment
mips: reserve elfcorehdr
mips: Make sure kernel memory is in iomem
MIPS: ath79: use dynamically allocated USB platform devices
...
Phyter KSZ9021 has hardware bug. If asymmetric pause is enabled,
then it is necessary to disconnect and then reconnect the ethernet
cable to get the phyter working. The solution is to disable the
asymmetric pause.
Signed-off-by: Vlastimil Kosar <ikosar@fit.vutbr.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Do not include the frame check sequence when adding the skb to
netif_receive_skb(). This causes problems when this interface was
bridged to a wifi ap and a big package should be forwarded from this
Ethernet driver through a bride to the wifi client.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix memory leak in phy_device_free() for the case when phy_device*
returned by phy_device_create() is not registered in the system.
Bug description:
phy_device_create() sets name of kobject using dev_set_name(), which
allocates memory using kvasprintf(), but this memory isn't freed if
the underlying device isn't registered properly, because kobject_cleanup()
is not called in that case. This can happen (and actually is happening on
our machines) if phy_device_register(), called by mdiobus_scan(), fails.
Patch description:
Embedded struct device is initialized in phy_device_create() and it
counterpart phy_device_free() just drops one reference to the device,
which leads to proper deinitialization including releasing the kobject
name memory.
Signed-off-by: Petr Malat <oss@malat.biz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix condition typo for running KR2 work-around though it doesn't have
real effect since the typo bits matched by chance.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix KR2 link down problem after reboot when link speed is reconfigured via ethtool.
Since 1G/10G support link speed were missing by default, 1G/10G link speed were
not advertised.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the "ethtool -p" for boards with BCM84834, by using LED4 of the PHY
to toggle the link LED while keeping interrupt disabled to avoid NIG attentions,
and at the end restore NIG to previous state.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some hardware start settings implicitely assume an usual 1500 bytes mtu
that can't be guaranteed because changes of mtu may be requested both
before and after the hardware is started.
Reported-by: Tomi Orava <tomimo@ncircle.nullnet.fi>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Recently in commit 8a964f44e0
("iwlwifi: always copy first 16 bytes of commands") we fixed
the problem that the hardware writes back to the command and
that could overwrite parts of the data that was still needed
and would thus be corrupted.
Investigating this problem more closely we found that this
write-back isn't really ordered very well with respect to
other DMA traffic. Therefore, it sometimes happened that the
write-back occurred after unmapping the command again which
is clearly an issue and could corrupt the next allocation
that goes to that spot, or (better) cause IOMMU faults.
To fix this, allocate coherent memory for the first 16 bytes
of each command, containing the write-back part, and use it
for all queues. All the dynamic DMA mappings only need to be
TO_DEVICE then. This ensures that even when the write-back
happens "too late" it can't hit memory that has been freed
or a mapping that doesn't exist any more.
Since now the actual command is no longer modified, we can
also remove CMD_WANT_HCMD and get rid of the DMA sync that
was necessary to update the scratch pointer.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Supporting 8K A-MSDU means that we need to allocate order 1
pages for every Rx packet. Even when there is no traffic.
This adds stress on the memory manager. The handling of
compound pages is also less trivial for the memory manager
and not using them will make the allocation code run faster
although I didn't really measure.
Eric also pointed out that having huge buffers with little
data in them is not very nice towards the TCP stack since
the truesize of the skb is huge. This doesn't allow TCP
to have a big Rx window.
See https://patchwork.kernel.org/patch/2167711/ for details.
Note that very few vendors will actually send A-MSDU.
Disable this feature by default.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The IWL_MAX_CMD_TFDS name for this constant is wrong, the
constant really indicates how many TBs we can use in the
driver for a single command TFD, rename the constant and
also add a comment explaining it.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The reason we mapped them bidirectionally was that not doing
so had caused IOMMU exceptions, due to the fact that the HW
writes back into the command. Now that the first part of the
command including the write-back part is always in the first
buffer, we don't need to map the remaining buffer(s) bidi
and can get rid of the special-casing for commands.
This is a requisite patch for another one to fix DMA mapping.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
I'm not sure why, but the hlist for each entry iterators were conceived
list_for_each_entry(pos, head, member)
The hlist ones were greedy and wanted an extra parameter:
hlist_for_each_entry(tpos, pos, head, member)
Why did they need an extra pos parameter? I'm not quite sure. Not only
they don't really need it, it also prevents the iterator from looking
exactly like the list iterator, which is unfortunate.
Besides the semantic patch, there was some manual work required:
- Fix up the actual hlist iterators in linux/list.h
- Fix up the declaration of other iterators based on the hlist ones.
- A very small amount of places were using the 'node' parameter, this
was modified to use 'obj->member' instead.
- Coccinelle didn't handle the hlist_for_each_entry_safe iterator
properly, so those had to be fixed up manually.
The semantic patch which is mostly the work of Peter Senna Tschudin is here:
@@
iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host;
type T;
expression a,c,d,e;
identifier b;
statement S;
@@
-T b;
<+... when != b
(
hlist_for_each_entry(a,
- b,
c, d) S
|
hlist_for_each_entry_continue(a,
- b,
c) S
|
hlist_for_each_entry_from(a,
- b,
c) S
|
hlist_for_each_entry_rcu(a,
- b,
c, d) S
|
hlist_for_each_entry_rcu_bh(a,
- b,
c, d) S
|
hlist_for_each_entry_continue_rcu_bh(a,
- b,
c) S
|
for_each_busy_worker(a, c,
- b,
d) S
|
ax25_uid_for_each(a,
- b,
c) S
|
ax25_for_each(a,
- b,
c) S
|
inet_bind_bucket_for_each(a,
- b,
c) S
|
sctp_for_each_hentry(a,
- b,
c) S
|
sk_for_each(a,
- b,
c) S
|
sk_for_each_rcu(a,
- b,
c) S
|
sk_for_each_from
-(a, b)
+(a)
S
+ sk_for_each_from(a) S
|
sk_for_each_safe(a,
- b,
c, d) S
|
sk_for_each_bound(a,
- b,
c) S
|
hlist_for_each_entry_safe(a,
- b,
c, d, e) S
|
hlist_for_each_entry_continue_rcu(a,
- b,
c) S
|
nr_neigh_for_each(a,
- b,
c) S
|
nr_neigh_for_each_safe(a,
- b,
c, d) S
|
nr_node_for_each(a,
- b,
c) S
|
nr_node_for_each_safe(a,
- b,
c, d) S
|
- for_each_gfn_sp(a, c, d, b) S
+ for_each_gfn_sp(a, c, d) S
|
- for_each_gfn_indirect_valid_sp(a, c, d, b) S
+ for_each_gfn_indirect_valid_sp(a, c, d) S
|
for_each_host(a,
- b,
c) S
|
for_each_host_safe(a,
- b,
c, d) S
|
for_each_mesh_entry(a,
- b,
c, d) S
)
...+>
[akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c]
[akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c]
[akpm@linux-foundation.org: checkpatch fixes]
[akpm@linux-foundation.org: fix warnings]
[akpm@linux-foudnation.org: redo intrusive kvm changes]
Tested-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Convert to the much saner new idr interface.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Convert to the much saner new idr interface.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If CONFIG_MAC80211_MESH is not set, cfg80211 will now allow advertising
interface combinations with NL80211_IFTYPE_MESH_POINT present.
Add appropriate ifdefs to avoid running into errors.
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Maximum delay for waking up card is 50 ms. Because of typo in
counter, this delay goes to 500ms. This patch fixes the bug.
Cc: <stable@vger.kernel.org> # 3.2+
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
On many different chips, important aspects of the MAC state are not
fully cleared by a warm reset. This can show up as tx/rx hangs, those
annoying "DMA failed to stop in 10 ms..." messages or other quirks.
On AR933x, the chip can occasionally get stuck in a way that only a
driver unload/reload or a reboot would bring it back to life.
With this patch, a full reset is issued when bringing the chip out of
FULL-SLEEP state (after idle), or if either Rx or Tx was not shut down
properly. This makes the DMA related error messages disappear completely
in my tests on AR933x, and the chip does not get stuck anymore.
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The ath9k commit 2ef167557c
(ath9k: fix signal strength reporting issues) fixed an issue where the
reported per-frame signal strength reported to mac80211 was being
overwritten with an internal average. The same issue is also present
in ath9k_htc.
In addition to preventing the driver from overwriting the value, this
commit also ensures that the internal average (which is used for ANI)
only tracks beacons of the AP that we're connected to.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
RSSI is being stored internally as s8 in several places. The indication
of an unset RSSI value, ATH_RSSI_DUMMY_MARKER, was supposed to have been
set to 127, but ended up being set to 0x127 because of a code cleanup
mistake. This could lead to invalid signal strength values in a few
places.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This USB ethernet adapter was purchased in anodyne packaging
from the computer store adjacent to linux.conf.au 2013 in
Canberra (Australia). A web search shows other recent
purchasers in Lancaster (UK) and Seattle (USA). Just like an
emergent virus, our age of e-commerce and airmail allows
underdocumented hardware to spread around the world instantly
using the vector of ridiculously low prices.
Paige Thompson, infected via eBay, discovered that the HG20F9
is a copy of the Asix 88772B; many viruses copy the RNA of
other viruses. See Paige's work at
<https://github.com/paigeadele/HG20F9>.
This patch uses her discovery to update the restructured Asix
driver in the current kernel.
Just as some viruses inhabit seemingly-healthy cells, the
HG20F9 uses the Vendor ID 0x066b assigned to Linksys Inc.
For the present there is no clash of Product ID 0x20f9.
Signed-off-by: Glen Turner <gdt@gdt.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tag all Huawei NCM devices as WWAN modems, as we don't know of any which
are not. This is necessary for userspace clients to know that the device
requires further setup on e.g. an AT-capable serial ports before
connectivity is available.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit 86564c3f "bnx2x: Remove many sparse warnings" UDP
csum offload is broken for 57710/57711. Fix return value.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
CC: Ariel Elior <ariele@broadcom.com>
CC: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The PIC was supposed to be a small signature appended to the
PhyDB data, but the signature isn't really static and thus
attempting to check it just causes the warnings spuriously
so remove them.
Signed-off-by: Dor Shaish <dor.shaish@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The wakeup packet in the status response is padded out
to a multiple of 4 bytes by the firmware for transfer
to the host, take that into account when checking the
length of the command.
Also, the reported wakeup packet includes the FCS but
the userspace API doesn't, so remove that. If it is a
data packet it is reported as an 802.3 packet but I
forgot to take into account and remove the encryption
head/tail, fix all of that as well.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Pull vfs pile (part one) from Al Viro:
"Assorted stuff - cleaning namei.c up a bit, fixing ->d_name/->d_parent
locking violations, etc.
The most visible changes here are death of FS_REVAL_DOT (replaced with
"has ->d_weak_revalidate()") and a new helper getting from struct file
to inode. Some bits of preparation to xattr method interface changes.
Misc patches by various people sent this cycle *and* ocfs2 fixes from
several cycles ago that should've been upstream right then.
PS: the next vfs pile will be xattr stuff."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits)
saner proc_get_inode() calling conventions
proc: avoid extra pde_put() in proc_fill_super()
fs: change return values from -EACCES to -EPERM
fs/exec.c: make bprm_mm_init() static
ocfs2/dlm: use GFP_ATOMIC inside a spin_lock
ocfs2: fix possible use-after-free with AIO
ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path
get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero
target: writev() on single-element vector is pointless
export kernel_write(), convert open-coded instances
fs: encode_fh: return FILEID_INVALID if invalid fid_type
kill f_vfsmnt
vfs: kill FS_REVAL_DOT by adding a d_weak_revalidate dentry op
nfsd: handle vfs_getattr errors in acl protocol
switch vfs_getattr() to struct path
default SET_PERSONALITY() in linux/elf.h
ceph: prepopulate inodes only when request is aborted
d_hash_and_lookup(): export, switch open-coded instances
9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate()
9p: split dropping the acls from v9fs_set_create_acl()
...
Cheers,
Rusty.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=KcDx
-----END PGP SIGNATURE-----
Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio updates from Rusty Russell:
"All trivial, thanks to the stuff which didn't quite make it time"
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
virtio_console: Initialize guest_connected=true for rproc_serial
virtio: use module_virtio_driver.
virtio: Add module driver macro for virtio drivers.
virtio_console: Use virtio device index to generate port name
virtio: make pci_device_id const
virtio: make config_ops const
virtio-mmio: fix wrong comment about register offset
virtio_console: Let unconnected rproc device receive data.
in bond_enslave(), check slave_cnt before actually using slave address.
introduced by:
commit 409cc1f8a4 (bond: have random dev address by default instead of zeroes)
Reported-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make cpsw_add_default_vlan() look at the actual number of slaves for its
iteration, so boards with less than 2 slaves don't ooops at boot.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Cc: David S. Miller <davem@davemloft.net>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings says:
====================
Some fixes that should go into 3.9:
1. Fix packet corruption when using non-coherent RX DMA buffers.
2. Fix occasional watchdog misfiring when changing MTU or ring size.
These are longstanding bugs and should be fixed in stable as well, but
I'd like to review other recent fixes first and send a separate request
for stable inclusion.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When stations are removed while packets are in the queue,
we drain the queues first, and then remove the stations.
If this happens in AP mode while the interface is removed
the MAC context might be removed from the firmware before
we removed the station(s), resulting in a SYSASSERT 3421.
This is because we remove the MAC context from the FW in
stop_ap(), but only flush the station drain work later in
remove_interface().
Refactor the code a bit to have a common MAC context
removal preparation first to solve this.
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The FH hardware will always write back to the scratch field
in commands, even host commands not just TX commands, which
can overwrite parts of the command. This is problematic if
the command is re-used (with IWL_HCMD_DFL_NOCOPY) and can
cause calibration issues.
Address this problem by always putting at least the first
16 bytes into the buffer we also use for the command header
and therefore make the DMA engine write back into this.
For commands that are smaller than 16 bytes also always map
enough memory for the DMA engine to write back to.
Cc: stable@vger.kernel.org
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Pull networking fixes from David Miller:
1) ping_err() ICMP error handler looks at wrong ICMP header, from Li
Wei.
2) TCP socket hash function on ipv6 is too weak, from Eric Dumazet.
3) netif_set_xps_queue() forgets to drop mutex on errors, fix from
Alexander Duyck.
4) sum_frag_mem_limit() can deadlock due to lack of BH disabling, fix
from Eric Dumazet.
5) TCP SYN data is miscalculated in tcp_send_syn_data(), because the
amount of TCP option space was not taken into account properly in
this code path. Fix from yuchung Cheng.
6) MLX4 driver allocates device queues with the wrong size, from Kleber
Sacilotto.
7) sock_diag can access past the end of the sock_diag_handlers[] array,
from Mathias Krause.
8) vlan_set_encap_proto() makes incorrect assumptions about where
skb->data points, rework the logic so that it works regardless of
where skb->data happens to be. From Jesse Gross.
9) Fix gianfar build failure with NET_POLL enabled, from Paul
Gortmaker.
10) Fix Ipv4 ID setting and checksum calculations in GRE driver, from
Pravin B Shelar.
11) bgmac driver does:
int i;
for (i = 0; ...; ...) {
...
for (i = 0; ...; ...) {
effectively corrupting the outer loop index, use a seperate
variable for the inner loops. From Rafał Miłecki.
12) Fix suspend bugs in smsc95xx driver, from Ming Lei.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (35 commits)
usbnet: smsc95xx: rename FEATURE_AUTOSUSPEND
usbnet: smsc95xx: fix broken runtime suspend
usbnet: smsc95xx: fix suspend failure
bgmac: fix indexing of 2nd level loops
b43: Fix lockdep splat on module unload
Revert "ip_gre: propogate target device GSO capability to the tunnel device"
IP_GRE: Fix GRE_CSUM case.
VXLAN: Use tunnel_ip_select_ident() for tunnel IP-Identification.
IP_GRE: Fix IP-Identification.
net/pasemi: Fix missing coding style
vmxnet3: fix ethtool ring buffer size setting
vmxnet3: make local function static
bnx2x: remove dead code and make local funcs static
gianfar: fix compile fail for NET_POLL=y due to struct packing
vlan: adjust vlan_set_encap_proto() for its callers
sock_diag: Simplify sock_diag_handlers[] handling in __sock_diag_rcv_msg
sock_diag: Fix out-of-bounds access to sock_diag_handlers[]
vxlan: remove depends on CONFIG_EXPERIMENTAL
mlx4_en: fix allocation of CPU affinity reverse-map
mlx4_en: fix allocation of device tx_cq
...
- SRP error handling fixes from Bart Van Assche
- Implementation of memory windows for mlx4 from Shani Michaeli
- Lots of cxgb4 HW driver fixes from Vipul Pandya
- Make iSER work for virtual functions, other fixes from Or Gerlitz
- Fix for bug in qib HW driver from Mike Marciniszyn
- IPoIB fixes from me, Itai Garbi, Shlomo Pongratz, Yan Burman
- Various cleanups and warning fixes from Julia Lawall, Paul Bolle, Wei Yongjun
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
iQIcBAABCAAGBQJRLPNoAAoJEENa44ZhAt0h0bMP/1xqlgDR3DGdoUoV4yTd6O9G
Uccdb7og5o5tedVo+8xZz01y4at99P8FWW4hJ4os6k8n6yKoBVwo7qjN+BOR+JG5
q8+O+ynUSIg4tGrb5sXcMnKXAXbw/vkftMWYNA41cbrM24DTYzB/2SLpvhwbFoTT
tdQc2tgz5QaDqzWbagyCR4+k/IgO+Llrz/RvIdtz4dsTnTDogN7QCoSffX8n/Lpb
DxtyXK4sdl3DAtd3CsIdsB/TSMb3RkHLCoSvmrWlLnqMdsbRxVnCVfBm4BOghW3J
Y2K3joRoCjjIZSRNs/i0FMFkT/jbCXg1oXg9ek/a6YFNcgyk7z8iGyXrRY7fOnno
8U2SfxJ69YpVYeJr+DSjaeHcmjsaYU7NN7JPxzvPKcJOIsxQJ/euJDXAXau3lEQY
o9/p4JsGty0WHi1NanyygvghvBAoP1C5/59Sl4bHH5gckPyJT1kinPSCTT76YXGS
WkSHg2mDhiJHy7Pnuy85iZldPoy2/5z09/I4aGMeL+8kUZbD4iFqzXIJU0HTsAim
EONoRXDhIcN5DNVSVH1ig6nJ2a7Vhov4Z0r/vB8P4KhslBcqFwf2leC0eCoe5mNt
SzcKhqosZDXoL8AwzpntzGIOid8pWmHbUx/PgIcoVXPjtl0h2ULNIFoYYyMZ3cyU
AyN2tSiUZVddTV1/aKGL
=RAQw
-----END PGP SIGNATURE-----
Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband update from Roland Dreier:
"Main batch of InfiniBand/RDMA changes for 3.9:
- SRP error handling fixes from Bart Van Assche
- Implementation of memory windows for mlx4 from Shani Michaeli
- Lots of cxgb4 HW driver fixes from Vipul Pandya
- Make iSER work for virtual functions, other fixes from Or Gerlitz
- Fix for bug in qib HW driver from Mike Marciniszyn
- IPoIB fixes from me, Itai Garbi, Shlomo Pongratz, Yan Burman
- Various cleanups and warning fixes from Julia Lawall, Paul Bolle,
Wei Yongjun"
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (41 commits)
IB/mlx4: Advertise MW support
IB/mlx4: Support memory window binding
mlx4: Implement memory windows allocation and deallocation
mlx4_core: Enable memory windows in {INIT, QUERY}_HCA
mlx4_core: Disable memory windows for virtual functions
IPoIB: Free ipoib neigh on path record failure so path rec queries are retried
IB/srp: Fail I/O requests if the transport is offline
IB/srp: Avoid endless SCSI error handling loop
IB/srp: Avoid sending a task management function needlessly
IB/srp: Track connection state properly
IB/mlx4: Remove redundant NULL check before kfree
IB/mlx4: Fix compiler warning about uninitialized 'vlan' variable
IB/mlx4: Convert is_xxx variables in build_mlx_header() to bool
IB/iser: Enable iser when FMRs are not supported
IB/iser: Avoid error prints on EAGAIN registration failures
IB/iser: Use proper define for the commands per LUN value advertised to SCSI ML
IB/uverbs: Implement memory windows support in uverbs
IB/core: Add "type 2" memory windows support
mlx4_core: Propagate MR deregistration failures to caller
mlx4_core: Rename MPT-related functions to have mpt_ prefix
...
We must only ever stop TX queues when they are full or the net device
is not 'ready' so far as the net core, and specifically the watchdog,
is concerned. Otherwise, the watchdog may fire *immediately* if no
packets have been added to the queue in the last 5 seconds.
The device is ready if all the following are true:
(a) It has a qdisc
(b) It is marked present
(c) It is running
(d) The link is reported up
(a) and (c) are normally true, and must not be changed by a driver.
(d) is under our control, but fake link changes may disturb userland.
This leaves (b). We already mark the device absent during reset
and self-test, but we need to do the same during MTU changes and ring
reallocation. We don't need to do this when the device is brought
down because then (c) is already false.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
We assume that the mapping between DMA and virtual addresses is done
on whole pages, so we can find the page offset of an RX buffer using
the lower bits of the DMA address. However, swiotlb maps in units of
2K, breaking this assumption.
Add an explicit page_offset field to struct efx_rx_buffer.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
We may currently allocate two RX DMA buffers to a page, and only unmap
the page when the second is completed. We do not sync the first RX
buffer to be completed; this can result in packet loss or corruption
if the last RX buffer completed in a NAPI poll is the first in a page
and is not DMA-coherent. (In the middle of a NAPI poll, we will
handle the following RX completion and unmap the page *before* looking
at the content of the first buffer.)
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
The name of FEATURE_AUTOSUSPEND is very misleading and the actual
meaning is remote wakeup, but a device incapable of remote wakeup
still can support USB autosuspend under some situations, so rename
it to avoid misunderstanding.
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit b2d4b150(smsc95xx: enable dynamic autosuspend) implements
autosuspend, but breaks current runtime suspend, such as:
when the interface becomes down, the usb device can't be put into
runtime suspend any more.
This patch fixes the broken runtime suspend.
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The three below functions:
smsc95xx_enter_suspend0()
smsc95xx_enter_suspend1()
smsc95xx_enter_suspend2()
return > 0 in case of success, so they will cause smsc95xx_suspend()
to return > 0 and cause suspend failure.
The bug is introduced in commit 3b9f7d(smsc95xx: fix error handling
in suspend failure case).
Cc: <stable@vger.kernel.org> [3.8]
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We were using the same variable for iterating two nested loops.
Reported-by: Tijs Van Buggenhout <tvb@able.be>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
On unload, b43 produces a lockdep warning that can be summarized in the
following way:
======================================================
[ INFO: possible circular locking dependency detected ]
3.8.0-wl+ #117 Not tainted
-------------------------------------------------------
modprobe/5557 is trying to acquire lock:
((&wl->firmware_load)){+.+.+.}, at: [<ffffffff81062160>] flush_work+0x0/0x2a0
but task is already holding lock:
(rtnl_mutex){+.+.+.}, at: [<ffffffff813bd7d2>] rtnl_lock+0x12/0x20
which lock already depends on the new lock.
[ INFO: possible circular locking dependency detected ]
======================================================
The full output is available at http://lkml.indiana.edu/hypermail/linux/kernel/1302.3/00060.html.
To summarize, commit 6b6fa58 added a 'cancel_work_sync(&wl->firmware_load)'
call in the wrong place.
The fix is to move the cancel_work_sync() call to b43_bcma_remove() and
b43_ssb_remove(). Thanks to Johannes Berg and Michael Buesch for help in
diagnosing the log output.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [V3.5+]
Signed-off-by: David S. Miller <davem@davemloft.net>
tunnel_ip_select_ident() is more efficient when generating ip-header
id given inner packet is of ipv4 type.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement MW allocation and deallocation in mlx4_core and mlx4_ib.
Pass down the enable bind flag when registering memory regions.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Shani Michaeli <shanim@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Add memory windows-related code to INIT_HCA and QUERY_HCA.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Shani Michaeli <shanim@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Do not enable memory windows allocation for virtual functions.
In addition, add a few safety checks, such as:
* Verifying the PD of a new MPT matches the VF.
* Making sure binding memory window isn't enabled for FMRs, and
that new memory windows are not FMR themselves.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Shani Michaeli <shanim@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Fix missing () & { }
Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Noticed that vmxnet3's get_ringparam function was returning the summation of all
ring buffers on a NIC, rather than just the size of any one ring. This causes
problems when a vmxnet3 instance has multiple queues, as ethtool, when setting
ring parameters, first gets the current ring parameters to set the existing
values in the set_ringparm commannd. The result is, that unless both rx and tx
ring sizes are set in a single operation, which ever ring is not set will
silently have its ring count multiplied by the number of queues on the NIC until
it reaches a driver defined maxiumum value.
Fix it by not multiplying the rx and tx ring sizes by the number of queues in
the system, like every other driver. Tested by myself successfully.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Shreyas Bhatewara <sbhatewara@vmware.com>
CC: "VMware, Inc." <pv-drivers@vmware.com>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Veaceslav Falico