Used the output mailbox format for input mailbox.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The private mlx5 state flag that indicates that the netdev is
opened is set at the beginning of the netdev open flow.
In case an error occured later in the mlx5 netdev open flow, this
flag was not cleared, remaining set although the actual set is
closed.
Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The function returns always non-negative values.
The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].
[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We found that a TCP Fast Open passive connection was vulnerable
to reorders, as the exchange might look like
[1] C -> S S <FO ...> <request>
[2] S -> C S. ack request <options>
[3] S -> C . <answer>
packets [2] and [3] can be generated at almost the same time.
If C receives the 3rd packet before the 2nd, it will drop it as
the socket is in SYN_SENT state and expects a SYNACK.
S will have to retransmit the answer.
Current OOO avoidance in linux is defeated because SYNACK
packets are attached to the LISTEN socket, while DATA packets
are attached to the children. They might be sent by different cpus,
and different TX queues might be selected.
It turns out that for TFO, we created a child, which is a
full blown socket in TCP_SYN_RECV state, and we simply can attach
the SYNACK packet to this socket.
This means that at the time tcp_sendmsg() pushes DATA packet,
skb->ooo_okay will be set iff the SYNACK packet had been sent
and TX completed.
This removes the reorder source at the host level.
We also removed the export of tcp_try_fastopen(), as it is no
longer called from IPv6.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Karl Heiss says:
====================
sctp: Fix SCTP deadlock
These patches fix a deadlock during accept() of an SCTP connection.
The first patch fixes whitespace issues.
The second patch actually fixes the deadlock race.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
A case can occur when sctp_accept() is called by the user during
a heartbeat timeout event after the 4-way handshake. Since
sctp_assoc_migrate() changes both assoc->base.sk and assoc->ep, the
bh_sock_lock in sctp_generate_heartbeat_event() will be taken with
the listening socket but released with the new association socket.
The result is a deadlock on any future attempts to take the listening
socket lock.
Note that this race can occur with other SCTP timeouts that take
the bh_lock_sock() in the event sctp_accept() is called.
BUG: soft lockup - CPU#9 stuck for 67s! [swapper:0]
...
RIP: 0010:[<ffffffff8152d48e>] [<ffffffff8152d48e>] _spin_lock+0x1e/0x30
RSP: 0018:ffff880028323b20 EFLAGS: 00000206
RAX: 0000000000000002 RBX: ffff880028323b20 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff880028323be0 RDI: ffff8804632c4b48
RBP: ffffffff8100bb93 R08: 0000000000000000 R09: 0000000000000000
R10: ffff880610662280 R11: 0000000000000100 R12: ffff880028323aa0
R13: ffff8804383c3880 R14: ffff880028323a90 R15: ffffffff81534225
FS: 0000000000000000(0000) GS:ffff880028320000(0000) knlGS:0000000000000000
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 00000000006df528 CR3: 0000000001a85000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper (pid: 0, threadinfo ffff880616b70000, task ffff880616b6cab0)
Stack:
ffff880028323c40 ffffffffa01c2582 ffff880614cfb020 0000000000000000
<d> 0100000000000000 00000014383a6c44 ffff8804383c3880 ffff880614e93c00
<d> ffff880614e93c00 0000000000000000 ffff8804632c4b00 ffff8804383c38b8
Call Trace:
<IRQ>
[<ffffffffa01c2582>] ? sctp_rcv+0x492/0xa10 [sctp]
[<ffffffff8148c559>] ? nf_iterate+0x69/0xb0
[<ffffffff814974a0>] ? ip_local_deliver_finish+0x0/0x2d0
[<ffffffff8148c716>] ? nf_hook_slow+0x76/0x120
[<ffffffff814974a0>] ? ip_local_deliver_finish+0x0/0x2d0
[<ffffffff8149757d>] ? ip_local_deliver_finish+0xdd/0x2d0
[<ffffffff81497808>] ? ip_local_deliver+0x98/0xa0
[<ffffffff81496ccd>] ? ip_rcv_finish+0x12d/0x440
[<ffffffff81497255>] ? ip_rcv+0x275/0x350
[<ffffffff8145cfeb>] ? __netif_receive_skb+0x4ab/0x750
...
With lockdep debugging:
=====================================
[ BUG: bad unlock balance detected! ]
-------------------------------------
CslRx/12087 is trying to release lock (slock-AF_INET) at:
[<ffffffffa01bcae0>] sctp_generate_timeout_event+0x40/0xe0 [sctp]
but there are no more locks to release!
other info that might help us debug this:
2 locks held by CslRx/12087:
#0: (&asoc->timers[i]){+.-...}, at: [<ffffffff8108ce1f>] run_timer_softirq+0x16f/0x3e0
#1: (slock-AF_INET){+.-...}, at: [<ffffffffa01bcac3>] sctp_generate_timeout_event+0x23/0xe0 [sctp]
Ensure the socket taken is also the same one that is released by
saving a copy of the socket before entering the timeout event
critical section.
Signed-off-by: Karl Heiss <kheiss@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's possible that while we are waiting for the spinlock, another
entity (that owns the spinlock) has shut down the admin queue.
If we then attempt to use the queue, we will panic.
Add a check for this condition on the receive side. This matches
an existing check on the send queue side.
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Previously to this patch, the hardware was removing
VLAN tags from the inner header of VXLAN packets. The
hardware configuration can be changed to leave the
packet alone since that is what the linux stack
expects for this type of VLAN in VXLAN packet.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2015-09-28
This series contains updates to i40e, i40evf and igb to resolve issues
seen and reported by Red Hat.
Kiran moves i40e_get_head() in preparation for the refactor of the Tx
timeout logic, so that it can be used in other areas of the driver.
Refactored the driver timeout logic by issuing a writeback request via
a software interrupt to the hardware the first time the driver detects
a hang. This was due to the driver being too aggressive in resetting a
hung queue.
Shannon adds the GRE protocol to the transmit checksum encoding.
Anjali fixes an issue of forcing writeback too often, which caused us to
not benefit from NAPI. We now disable force writeback in the clean
routine for X710 and XL710 adapters. The X722 adapters do not enable
interrupt to force a writeback and benefit from WB_ON_ITR and so force
WB is left enabled for those adapters. Fixed a possible deadlock issue
where sync_vsi_filters() can be called directly under RTNL or through
the timer subtask without RTNL. So update the flow to see if we are
already under RTNL before trying to grab it.
Stefan Assmann provides a fix for igb where SR-IOV was not getting
enabled properly and we ran into a NULL pointer if the max_vfs module
parameter is specified. This is prevented by setting the
IGB_FLAG_HAS_MSIX bit before calling igb_probe_vfs().
v2: added "i40e: Fix for recursive RTNL lock during PROMISC change" patch
to the series, as it resolves another issues seen and reported by
Red Hat.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The while() loop will only exit in a return or a goto ask_for_joinbss,
which means it will never break and execute the return after it.
Removing return _FAIL since it is dead code.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is a patch to correct two flavors of brace styling issues in
ieee80211_softmac_wx.c.
Signed-off-by: Mike Dupuis <mike.dupuis.0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is a patch to add spaces around = operators in several instances
in ieee80211_softmac_wx.c
Signed-off-by: Mike Dupuis <mike.dupuis.0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is a patch to add missing spaces around == and || operators in one
instance in ieee80211_softmac_wx.c.
Signed-off-by: Mike Dupuis <mike.dupuis.0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is a patch to move opening braces to the lines on which their
corresponding if-statements exist in ieee80211_softmac_wx.c.
Signed-off-by: Mike Dupuis <mike.dupuis.0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is a patch to add blank lines after declaration ins several
instances in iee80211_softmac_wx.c.
Signed-off-by: Mike Dupuis <mike.dupuis.0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is a fix to add spaces after commas in ieee80211_softmac_wx.c.
Signed-off-by: Mike Dupuis <mike.dupuis.0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The kbuild test robot reports the following build error for
i386-randconfig-c0-09230740:
>> ERROR: "ieee80211_hdrlen" [drivers/staging/rtl8188eu/r8188eu.ko] undefined!
Add a dependency on CFG80211 to fix it.
Signed-off-by: Jakub Sitnicki <jsitnicki@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pmlmeinfo->ADDBA_req is accessed three times in this function, but it
contributes to generating lines above 80 characters that are not easy to
split in a nice way.
Extract a pointer to it to make code slightly more concise and fix some
lines over 80 characters.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The 'pbuf' and 'source' arguments to rtw_set_fixed_ie() are (void *), the
explicit typecasts are not needed. They just make code less readable.
Also fix checkpatch issues in the lines touched:
ERROR: space prohibited before that ',' (ctx:WxW)
WARNING: line over 80 characters
CHECK: Unnecessary parentheses around <var>
Note: some of the modified lines are still over 80 characters because they
are not fixable by just adding newlines. They will be fixed in a later
patch.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
rtw_set_ie() is a memcpy-like function, taking addresses of memory buffers
among its parameters. Similarly to memcpy, change the parameters to be
void*. This will allow to get rid of typecasts whenever it is called.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This comment gives pretty much the same information as the name of the
function that it immediately precedes.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge rtl92e_dm_backup_state and _rtl92e_dm_bb_initialgain_backup.
Static function is called only once and dm_backup_state had short body.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use ffs instead of iteration. Behaviour of function doesn't change.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove FSF address from licenses at the beginning of files.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replaced all uses of uintX_t types to uX types, to be
checkpatch clean.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Moved kernel-doc comments for non-inline functions
from header files to .c files.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add cmd_flags parameter to all dprc APIs to comply
with the dprc 4.0 MC interface. Updated MC version
major number. Pass irq args in struct instead of
separate args.
dprc 4.0 uses MC-relative offsets to specify object regions,
instead of physical addresses. So, translate_mc_addr() and
struct fsl_mc_addr_translation_range need to be updated
accordingly.
Update commands for 4.0: add new commands 'set/get
obj irq', 'set obj label', 'get obj descriptor'.
Remove 'get portal paddr'.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dpcon object minor version number updated to match latest
MC firmware. This change is needed because the dpcon
object binds to the allocator and the current driver match
logic uses object version numbers.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add cmd_flags parameter to all dpbp APIs to comply
with the dpmcp 2.0 MC interface. Updated version
major number. Pass irq args in struct instead of
separate args.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add cmd_flags parameter to all dpbp APIs to comply
with the dpbp 2.0 MC interface. Updated MC version
major number. Pass irq args in struct instead of
separate args.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add cmd_flags parameter to all dpmng APIs to comply
with 8.0 MC firmware interface. Updated MC version
major number.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Management Complex (MC) binary interface added a new "flags"
field to the command header.
Add the definitions for this field in preparation for adding the
new cmd_flags parameter to all MC interface APIs.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch is intended to fix the checkpatch warning for ``block``
comments for staging/android driver.
Signed-off-by: Sriram Raghunathan <sriram@marirs.net.in>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The lock in vnt_submit_rx_urb_complete is blocked by TX activity.
The lock comes from a time when RX needed to be synchronized with
other parts of the driver because the WLAN API was in driver.
Since this is now dealt with in mac80211 the lock is unnecessary.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Presently the TX buffer stops while filling the buffer and urb.
However, this does not make use of the available buffer
space, it also lags the speed of the TX troughtput.
Only stop the queue when the buffer becomes full. The
URB complete will start the queue again when a
buffer and URB is available.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The device can now operate in low power mode
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The device should ready to listen to next beacon so on count down of
wake_up_count == 1.
schedule command WLAN_CMD_TBTT_WAKEUP which calls vnt_next_tbtt_wakeup which
wakes the device.
This restores this back to vendors code with a slight difference the
count down is in the interrupt handler.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The TSF counter is presently unused on driver in infrastructure mode.
It is needed to implement power saving functions and wireless stats that
are passed in interrupt handling.
Ensuring counter is synced with access point beacon.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Presently the TX buffer stops while filling the buffer.
However, this does not make use of the available buffer
space, it also lags the speed of the TX troughtput.
Only stop the queue when the buffer becomes full. The
Interupt handler will start the queue again when a
buffer is available.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The result variable is not set anywhere beyond its initialization,
therefore it can be remove.
Signed-off-by: Tillmann Heidsieck <theidsieck@leenox.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We exit the above loop either if curroff >= (HFA384x_PDA_LEN_MAX / 2 - 1)
or if we found the END marker in the element beyond the current one. The
first case is checked for in the preceding if statement, therefore the
second if statement is redundant and can be removed.
Signed-off-by: Tillmann Heidsieck <theidsieck@leenox.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
