Calling IPv4 specific inet_csk_route_req in tcp_check_req
is a bad idea and crashes machine on IPv6 connections, as reported
by Valdis Kletnieks
Also, all we are really interested in is the timestamp
option in the header, so calling tcp_parse_options()
with the "estab" set to false flag is an overkill as
it tries to parse half a dozen other TCP options.
We know whether timestamp should be enabled or not
using data from request_sock.
Signed-off-by: Gilad Ben-Yossef <gilad@codefidence.com>
Tested-by: Valdis.Kletnieks@vt.edu
Signed-off-by: David S. Miller <davem@davemloft.net>
Add suspend/resume capability to TI DaVinci EMAC driver.
Signed-off-by: Ranjith Lohithakshan <ranjithl@ti.com>
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As pointed by Stephen Rothwell, commit c6d14c84 added a warning :
net/ipv4/devinet.c: In function 'inet_select_addr':
net/ipv4/devinet.c:902: warning: label 'out' defined but not used
delete unused 'out' label and do some cleanups as well
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This cleanup patch puts struct/union/enum opening braces,
in first line to ease grep games.
struct something
{
becomes :
struct something {
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a reference to the the git tree where most
of the forward going network development occurs.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use spin_trylock_irqsave instead of open-coded
local_irq_save+spin_trylock.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Check whether index is within bounds before testing the element.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Karsten Keil <isdn@linux-pingi.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The negation makes it a bool before the comparison and hence it
will never be 0x40.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Karsten Keil <isdn@linux-pingi.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
When diva_strace_read_uint returns an error, return even from
process_idi_event, because l2_state is uninitialized.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Karsten Keil <isdn@linux-pingi.de>
Acked-by: Armin Schindler <armin@melware.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use offsetof instead of explicit implementation.
* fixes bug with omitted & like:
len = (byte)(((T30_INFO *) 0)->station_id + 20)
* avoids compiler warnings with wrong sizes (pointer-to-char cast):
len = (byte)(&(((T30_INFO *) 0)->universal_6));
* cleans up the code
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Karsten Keil <isdn@linux-pingi.de>
Acked-by: Armin Schindler <armin@melware.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current code probably returns -EINVAL a lot. Otherwise it would oops.
Compile tested only. Found by smatch (http://repo.or.cz/w/smatch.git).
Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Karsten Keil <isdn@linux-pingi.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add omittted unlocks to 2 functions.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Karsten Keil <Karsten-Keil@t-online.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Adds RCU management to the list of netdevices.
Convert some for_each_netdev() users to RCU version, if
it can avoid read_lock-ing dev_base_lock
Ie:
read_lock(&dev_base_loack);
for_each_netdev(net, dev)
some_action();
read_unlock(&dev_base_lock);
becomes :
rcu_read_lock();
for_each_netdev_rcu(net, dev)
some_action();
rcu_read_unlock();
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Another rcu conversion to avoid one dev_hold()/dev_put() pair
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/bnx2.c: In function ‘bnx2_enable_forced_2g5’:
drivers/net/bnx2.c:1447: warning: ‘bmcr’ may be used uninitialized in this function
drivers/net/bnx2.c: In function ‘bnx2_disable_forced_2g5’:
drivers/net/bnx2.c:1482: warning: ‘bmcr’ may be used uninitialized in this function
One fix would be to have an initial value, but a plain return might be better.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This cleanup patch puts struct/union/enum opening braces,
in first line to ease grep games.
struct something
{
becomes :
struct something {
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
These checks don't make sense anymore since rtnl_notify() cannot fail.
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since the kernel api already has the macro "min",
just use it instead of declaring another one.
Signed-off-by: Thiago Farina <tfransosi@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
`ulp_type' is signed, make sure it is not negative
when we read the array element.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Don't access netdev->stats in IO path. Save them in tx_ring/rx_rings
and add them up when get_stats API is called.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
These sub-commands are issued by another (FCoE) function requesting
an operation on a shared resource.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix inverted setting of 'retries'; when we are in the probe() path, we
should retry to enable the function only once; otherwise until it
times out.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
The function was always setting the return value to the amount of
bytes transferred, overwriting the error code in error paths.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
When the device stalls, clear it and retry; if it keeps failing too
often, reset the device.
This specially happens when running on virtual machines; the real
hardware doesn't seem to trip on stalls too much, except for a few
reports in the mailing list (still to be confirmed this is the cause,
although it seems likely.
NOTE: it is not clear if the URB has to be resubmitted fully or start
only at the offset of the first transaction sent. Can't find
documentation to clarify one end or the other.
Tests that just resubmit the whole URB seemed to work in my
environment.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
The iwmc3200 has a quirk where retrying SDIO enable during the probe()
path causes bad interactions with the TOP function controller that
causes a reset storm. The workaround is simply not to retry an SDIO
enable in said path (and still do in the reset / reinitialization
paths).
The driver does so by checking i2400ms->debugfs_dentry to see if it
has been initialized; if not, it is in the probe() path. Document said
fact in i2400ms->debugfs_entry.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Different paths of the i2400m SDIO driver need to take care of a few
SKU-specific quirks. For the ones that are common to to all the
iwmc3200 based devices, introduce i2400ms->iwmc3200 [set in
i2400ms_probe()], so it doesn't have to check against the list of
iwmc3200 SKU IDs on each quirk site.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
The USB code was incorrectly specifiying timeouts to be in jiffies vs
msecs. On top of that, lower it to 200ms, as 1s is really too long
(doesn't allow the watchdog to trip a reset if the device timesout too
often).
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
The i2400m, when conected, will negotiate with the WiMAX basestation
to put the link in IDLE mode when it is not being used. Upon RX/TX
traffic, the link has to be restablished and that might require some
crypto handshakes and maybe a DHCP renew.
This process might take up to 20 (!) seconds and in some cases we were
seeing network watchdog warnings that weren't needed.
So the network watchdog timeout is updated to be slightly above that
20s threshold. As well, the driver itself will double check if the
device is stuck in IDLE mode -- if that happens, the device will be
reset (in this case the queue is also woken up to remove bogus--once
the device is reset--warnings).
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Currently the i2400m driver was resetting by just calling
i2400m->bus_reset(). However, this was missing stopping the TX queue
and downing the carrier. This was causing, for the corner case of the
driver reseting a device that refuses to go out of idle mode, that a
few packets would be queued and more than one reset would go through,
making the recovery a wee bit messy.
To avoid introducing the same cleanup in all the bus-specific driver,
introduced a i2400m_reset() function that takes care of house cleaning
and then calling the bus-level reset implementation.
The bulk of the changes in all files are just to rename the call from
i2400m->bus_reset() to i2400m_reset().
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Some versions of the user space Intel WiMAX daemon need to have full
control over the device initialization sequence. By setting the module
option i2400.passive_mode to 1, the driver defers all device
configuration and initialization to user space.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
- TC35815_DMA_SYNC_ONDEMAND is always enabled.
- WORKAROUND_LOSTCAR is always enabled.
- WORKAROUND_100HALF_PROMISC is always enabled.
- GATHER_TXINT is always enabled.
- TC35815_USE_PACKEDBUFFER is always disabled.
- NO_CHECK_CARRIER is always disabled.
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch provides basic hash rules programming via the ethtool
interface.
Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch introduces multiple group support for etsec2.0
devices.
Multiple group support is provided by mapping the set of enabled
queues to different groups and then programming the per group
regsiters imask, ievent, rstat, tstat.
The queues corresponding to a group are indicated by programming
isrg (interrupt steering) registers.
Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds support for etsec2.0 regsiters
Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds mdio support for etsec2.0 devices.
Modified the fsl_pq_mdio structure to include the new mdio
members.
Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch introduces multiple Tx and Rx queues.
The incoming packets can be classified into different queues
based on filer rules (out of scope of this patch). The number
of queues enabled will be based on a DTS entries fsl,num_tx_queues
and fsl,num_rx_queues.
Although we are enabling multiple queues, the interrupt coalescing
is on per device level (etsec-1.7 doesn't support multiple rxics
and txics).
Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch introduces the group structure. The elements of this
structure are the interrupt lines, their corresponding names,
the register memory map.
The elements for this group are factored out from the gfar_private
structure. The introduction of group structure will help in
providing support for newer versions of etsec.
Currently, the support is present only for single group and
single tx/rx queues.
Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch introduces per tx and per rx queue structures.
Earlier the members of these structures were inside the
gfar_private structure.
Moving forward if we want to support multiple queues, we need
to refactor the gfar_private structure so that introduction of
multiple queues is easier.
Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch updates the tg3 version to 3.103.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds code to disable the TXC and RXC reference clocks if link
is not available.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds an RXC auto power-down feature to the code that supports
the gphys.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The 5785 does not use the RXC reference clock. Turning it off is
desirable as it saves power.
By default, the 50610 enables the RXC reference clock and the 50610M
disables it. Presumably this is one of the reasons why the hardware
architect chose one over the other.
Adding a "rx reference clock disable" flag is not the ideal way to
describe the option, as it would force the MAC using a 50610M to set
the flag. Ideally we want the flags to represent opt-in behavior that
deviates from hardware defaults. Furthermore, the lack of a
"disable" flag implies that the requester wants the rx reference clock
enabled, which doesn't necessarily follow.
By presenting the option as a passive statement (rx reference clock
unused) rather than a command, I hope to convey an opt-in option to
disable the rx reference clock that falls back to hardware defaults if
not set. A secondary benefit of this is that it keeps the
intelligence about phy defaults in the broadcom module where it belongs
and allows the broadcom module more latitude should a bug arise.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Auto power-down (APD) support is a power-saving feature. It should be
selectively enabled since it might expose MAC bugs. This patch changes
the code to enable APD only if the PHY_BRCM_AUTO_PWRDWN_ENABLE flag is
set. The tg3 driver was changed to set this bit.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Broadcom 50610M parts changed the default definitions of the RGMII mode
shadow register. The 5785 needs the RGMII mode selection bits [4:3]
cleared.
The default value of the remaining bits in this register are zero.
Rather than unnecessarily burn an extra bit in the dev_flags member in
an attempt to enumerate all possible combinations, this patch take a
more course grained approach and labels the option as "clear all bits".
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
