Florian Fainelli [Wed, 2 Jul 2014 04:08:36 +0000 (21:08 -0700)]
net: systemport: update umac_enable_set to take a bitmask
Quite often we need to enable either the transmitter or the receiver
bits in UMAC_CMD, use umac_enable_set() to do that for us.
This is a preliminary change to introduce suspend/resume support in the
driver.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Varka Bhadram [Wed, 2 Jul 2014 03:31:09 +0000 (09:01 +0530)]
6lowpan: mac802154: fix coding style issues
This patch fixed the coding style issues reported by checkpatch.pl
following issues fixed:
CHECK: Alignment should match open parenthesis
WARNING: line over 80 characters
CHECK: Blank lines aren't necessary before a close brace '}'
WARNING: networking block comments don't use an empty /* line, use /* Comment...
WARNING: Missing a blank line after declarations
WARNING: networking block comments start with * on subsequent lines
CHECK: braces {} should be used on all arms of this statement
Signed-off-by: Varka Bhadram <varkab@cdac.in>
Tested-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rami Rosen [Tue, 1 Jul 2014 18:17:35 +0000 (21:17 +0300)]
netlink: Fix do_one_broadcast() prototype.
This patch changes the prototype of the do_one_broadcast() method so that it will return void.
Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 8 Jul 2014 02:55:49 +0000 (19:55 -0700)]
Merge branch 'tipc-next'
Erik Hugne says:
====================
tipc: link state processing improvements
Message delivery is separated from the link state processing, and
we fix a bug in receive-path triggered acks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Erik Hugne [Tue, 1 Jul 2014 08:22:41 +0000 (10:22 +0200)]
tipc: fix link acknowledge logic in receive path
Link state acks triggered from the receive path is done before
the last received packet have been processed by the link layer.
The effect of this is that the last received packet will not be
included in the ack. This causes problems if the link window is
set to TIPC_MIN_LINK_WIN, where the ack interval will be equal to
the link tolerance, and the link enters a stop-and-go behavior.
We move the ack logic to after link state processing, just before
the packet is delivered to higher layers.
Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: Carl Sigurjonsson <carl.sigurjonsson@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Erik Hugne [Tue, 1 Jul 2014 08:22:40 +0000 (10:22 +0200)]
tipc: refactor message delivery out of tipc_rcv
This is a cosmetic change, separating message delivery from the
link state processing.
Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Neal Cardwell [Mon, 30 Jun 2014 19:09:49 +0000 (15:09 -0400)]
tcp: switch snt_synack back to measuring transmit time of first SYNACK
Always store in snt_synack the time at which the server received the
first client SYN and attempted to send the first SYNACK.
Recent commit
aa27fc501 ("tcp: tcp_v[46]_conn_request: fix snt_synack
initialization") resolved an inconsistency between IPv4 and IPv6 in
the initialization of snt_synack. This commit brings back the idea
from
843f4a55e (tcp: use tcp_v4_send_synack on first SYN-ACK), which
was going for the original behavior of snt_synack from the commit
where it was added in
9ad7c049f0f79 ("tcp: RFC2988bis + taking RTT
sample from 3WHS for the passive open side") in v3.1.
In addition to being simpler (and probably a tiny bit faster),
unconditionally storing the time of the first SYNACK attempt has been
useful because it allows calculating a performance metric quantifying
how long it took to establish a passive TCP connection.
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Cc: Octavian Purdila <octavian.purdila@intel.com>
Cc: Jerry Chu <hkchu@google.com>
Acked-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 8 Jul 2014 00:07:05 +0000 (17:07 -0700)]
Merge branch 'tlan-next'
Ondrej Zary says:
====================
tlan: Link handling improvements and Olicom fixes
This patch series improves link handling in tlan driver, allowing the
cable to be (un)plugged anytime and NetworkManager to work properly.
Also there are some bugfixes related to Olicom OC-2326 card.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Mon, 30 Jun 2014 16:38:37 +0000 (18:38 +0200)]
tlan: Isolate external PHY when using internal PHY
When using internal 10 Mbps PHY, isolate the external PHY from MII bus.
External PHY must be kept powered up because it passes TX from tlan chip to
network.
This fixes weird link-loss problems under load with OC-2326 card at 10 Mbps.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Mon, 30 Jun 2014 16:38:36 +0000 (18:38 +0200)]
tlan: Enable device at resume
pci_disable_device() is called in _suspend but there's no corresponding
pci_enable_device() in _resume.
This causes "disabling already-disabled device" warning on 2nd suspend.
Add pci_enable_device() call to _resume to fix this problem.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Mon, 30 Jun 2014 16:38:35 +0000 (18:38 +0200)]
tlan: Don't disable internal PHY on cards that use it in 10 Mbps mode
In tlan_reset_adapter, we disable internal PHY when an external one is used.
On cards which use internal PHY in 10 Mbps mode, we enable it later when
setting 10 Mbps mode but it does not really work (PHY fails to reset).
Leave it enabled instead.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Mon, 30 Jun 2014 16:38:34 +0000 (18:38 +0200)]
tlan: Add PHY reset timeout
Add a timeout to prevent infinite loop waiting for PHY to reset.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Mon, 30 Jun 2014 16:38:33 +0000 (18:38 +0200)]
tlan: Make autonegotiation faster
Reduce the autonegotiation poll interval from 8 seconds to 2.
This greatly reduces the time needed to detect link presence,
especially on Olicom cards at 10 Mbps (two autonegoatiations required).
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Mon, 30 Jun 2014 16:38:32 +0000 (18:38 +0200)]
tlan: Don't scream if no link
Remove excess printks when the link is down.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Mon, 30 Jun 2014 16:38:31 +0000 (18:38 +0200)]
tlan: Restart autonegotiation on link loss
When link is lost on a card which uses internal PHY for 10 Mbit speeds,
restart autonegotiation to allow switching between 10 and 100 Mbps speeds.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Mon, 30 Jun 2014 16:38:30 +0000 (18:38 +0200)]
tlan: Fix MAC address byte order on OC-2325/OC-2326
Olicom OC-2325 and OC-2326 cards have the MAC address byte-swapped in EEPROM.
Byte-swap the MAC address if it's located at offset 0xF8.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Mon, 30 Jun 2014 16:38:29 +0000 (18:38 +0200)]
tlan: Add ethtool support
Add basic ethtool support to tlan driver:
- driver info - link detect (this allows NetworkManager to detect carrier)
- EEPROM read
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Mon, 30 Jun 2014 16:38:28 +0000 (18:38 +0200)]
tlan: Enable link monitoring
Enable old link monitoring code and modify it:
- control LINK LED
- use separate timer so it does not interfere with ACT LED
Tested with Olicom OC-2326.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ondrej Zary [Mon, 30 Jun 2014 16:38:27 +0000 (18:38 +0200)]
tlan: Enable activity LED on Olicom OC-2325 and OC-2326
Olicom OC-2325 and OC-2326 ethernet cards have an activity LED but it does not
work with tlan driver as it's not enabled. Enable it.
Tested with OC-2326.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Himangi Saraogi [Sat, 28 Jun 2014 18:36:29 +0000 (00:06 +0530)]
batman-adv: Use kasprintf
kasprintf combines kmalloc and sprintf, and takes care of the size
calculation itself.
The semantic patch that makes this change is as follows:
// <smpl>
@@
expression a,flag;
expression list args;
statement S;
@@
a =
- \(kmalloc\|kzalloc\)(...,flag)
+ kasprintf(flag,args)
<... when != a
if (a == NULL || ...) S
...>
- sprintf(a,args);
// </smpl>
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 7 Jul 2014 23:57:32 +0000 (16:57 -0700)]
Merge branch 'ptp-vlan'
Stefan Sørensen says:
====================
Add ptp vlan support
This patch series adds functionality for running ptp/ieee1588 over vlan.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Sørensen [Fri, 27 Jun 2014 09:59:11 +0000 (11:59 +0200)]
vlan: Pass SIOC[SG]HWTSTAMP ioctls to real device
This allows applications to enable hardware timestamping without being aware
of it being a vlan device and figuring out the real device.
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Sørensen [Fri, 27 Jun 2014 09:59:10 +0000 (11:59 +0200)]
ptp: Classify ptp over ip over vlan packets
This extends the ptp bpf to also match ptp over ip over vlan packets. The ptp
classes are changed to orthogonal bitfields representing version, transport
and vlan values to simplify matching.
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Sørensen [Fri, 27 Jun 2014 09:59:09 +0000 (11:59 +0200)]
net: Simplify ptp class checks
Replace two switch statements enumerating all valid ptp classes with an if
statement matching for not PTP_CLASS_NONE.
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Jul 2014 01:44:14 +0000 (18:44 -0700)]
Merge branch 'sctp'
Daniel Borkmann says:
====================
Misc SCTP updates
Daniel Borkmann (2):
net: sctp: improve timer slack calculation for transport HBs
net: sctp: only warn in proc_sctp_do_alpha_beta if write
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Daniel Borkmann [Mon, 30 Jun 2014 11:52:09 +0000 (13:52 +0200)]
net: sctp: only warn in proc_sctp_do_alpha_beta if write
Only warn if the value is written to alpha or beta. We don't care
emitting a one-time warning when only reading it.
Reported-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Mon, 30 Jun 2014 11:52:08 +0000 (13:52 +0200)]
net: sctp: improve timer slack calculation for transport HBs
RFC4960, section 8.3 says:
On an idle destination address that is allowed to heartbeat,
it is recommended that a HEARTBEAT chunk is sent once per RTO
of that destination address plus the protocol parameter
'HB.interval', with jittering of +/- 50% of the RTO value,
and exponential backoff of the RTO if the previous HEARTBEAT
is unanswered.
Currently, we calculate jitter via sctp_jitter() function first,
and then add its result to the current RTO for the new timeout:
TMO = RTO + (RAND() % RTO) - (RTO / 2)
`------------------------^-=> sctp_jitter()
Instead, we can just simplify all this by directly calculating:
TMO = (RTO / 2) + (RAND() % RTO)
With the help of prandom_u32_max(), we don't need to open code
our own global PRNG, but can instead just make use of the per
CPU implementation of prandom with better quality numbers. Also,
we can now spare us the conditional for divide by zero check
since no div or mod operation needs to be used. Note that
prandom_u32_max() won't emit the same result as a mod operation,
but we really don't care here as we only want to have a random
number scaled into RTO interval.
Note, exponential RTO backoff is handeled elsewhere, namely in
sctp_do_8_2_transport_strike().
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Jul 2014 01:41:05 +0000 (18:41 -0700)]
Merge branch 'be2net'
Sathya Perla says:
====================
be2net: patch set
v2 change: merged 2 lines into one in patch 4
Patch 1 refactors be_cmd_get_profile_config() routine to reduce
code duplication by using the be_cmd_notify_wait() routine, instead
of using a separate variant of the code for MBOX and MCCQ.
Patch 2 introduces the required FW-cmd code in the PF to query
RSS support on a VF. This is in preparation for patch 3.
Patch 3 adds support for the PF driver to re-configure the resource
distribution in FW based on the number of VFs enabled by the user. When
the user is not interested in enabling VFs, all resources of a port are
set-aside for the PF. If less than maximum number of VFs are enabled, then
each VF gets a better share of the resources and can now enable RSS (if
the interface supports it.)
Patch 4 is a minor fix to re-enable HW vlan filtering as soon as the number
of vlans programmed is within the HW limit.
Please consider applying to net-next tree. Thanks!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Kalesh AP [Mon, 30 Jun 2014 07:31:33 +0000 (13:01 +0530)]
be2net: re-enable vlan filtering mode asap
While adding vlans, when the HW limit of vlan filters is reached, the
driver enables vlan promiscuous mode.
Similarily, while removing vlans, the driver must re-enable HW filtering
as soon as the number of vlan filters is within the HW limit.
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasundhara Volam [Mon, 30 Jun 2014 07:31:32 +0000 (13:01 +0530)]
be2net: create optimal number of queues on SR-IOV config
If SR-IOV is enabled in the adapter, the FW distributes queue resources
evenly across the PF and it's VFs. If the user is not interested in enabling
VFs, the queues set aside for VFs are wasted.
This patch adds support for the PF driver to re-configure the resource
distribution in FW based on the number of VFs enabled by the user.
This also allows for supporting RSS queues on VFs, when less number of VFs
are enabled per PF. When maximum number of VFs are enabled, each VF typically
gets only one RXQ.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasundhara Volam [Mon, 30 Jun 2014 07:31:31 +0000 (13:01 +0530)]
be2net: read VF's capabilities from GET_PROFILE_CONFIG cmd
The PF driver must query the FW for VF's interface capabilities
to know if the VF is RSS capable or not.
This patch is in preparation for enabling RSS on VFs on Skyhawk-R.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasundhara Volam [Mon, 30 Jun 2014 07:31:30 +0000 (13:01 +0530)]
be2net: remove be_cmd_get_profile_config_mbox/mccq() variants
Fix be_cmd_get_profile_cmd() to use be_cmd_notify_wait() routine,
which uses MBOX if MCCQ has not been created. Doing this reduces
code duplication; we don't need the _mbox/_mccq() variants anymore.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Sat, 28 Jun 2014 18:44:19 +0000 (20:44 +0200)]
drivers/net/hyperv/netvsc.c: remove unnecessary null test before kfree
Fix checkpatch warning:
WARNING: kfree(NULL) is safe this check is probably not required
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: netdev@vger.kernel.org
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sergei Shtylyov [Sat, 28 Jun 2014 00:10:00 +0000 (04:10 +0400)]
sh_eth: remove checks around dev_kfree_skb() calls
Since consume_skb() (and hence dev_kfree_skb() macro) checks the passed pointer
for NULL, there's no need to check for NULL before invoking dev_kfree_skb().
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Prashant Sreedharan [Fri, 27 Jun 2014 23:21:50 +0000 (16:21 -0700)]
MAINTAINERS: Update tg3 maintainer
Signed-off-by: Prashant Sreedharan <prashant@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Jul 2014 00:11:00 +0000 (17:11 -0700)]
Merge branch 'qlcnic-next'
Harish Patil says:
====================
qlcnic: Enhance Tx timeout debug data collection.
The following set of patches are for enhancing Tx timeout debug collection
- Collect a firmware dump on first Tx timeout if netif_msg_tx_err() is set
- Log Receive and Status ring info on Tx timeout, in addition to Tx ring info
- Log additional Tx ring info if netif_msg_tx_err() is set
- Update driver version to 5.3.61
Please apply this series to net-next.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Harish Patil [Fri, 27 Jun 2014 23:01:39 +0000 (19:01 -0400)]
qlcnic: Update version to 5.3.61
Signed-off-by: Harish Patil <harish.patil@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Harish Patil [Fri, 27 Jun 2014 23:01:38 +0000 (19:01 -0400)]
qlcnic: Enhance Tx timeout debug data collection.
- Collect a firmware dump on first Tx timeout if netif_msg_tx_err() is set
- Log Receive and Status ring info on Tx timeout, in addition to Tx ring info
- Log additional Tx ring info if netif_msg_tx_err() is set
Signed-off-by: Harish Patil <harish.patil@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Fri, 27 Jun 2014 21:07:43 +0000 (23:07 +0200)]
net/caif/caif_socket.c: remove unnecessary null test before debugfs_remove_recursive
based on checkpatch:
"debugfs_remove_recursive(NULL) is safe this check is probably not required"
Cc: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Fri, 27 Jun 2014 20:51:52 +0000 (22:51 +0200)]
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c: remove unnecessary null test before debugfs_remove_recursive
Fix checkpatch warning:
"WARNING: debugfs_remove_recursive(NULL) is safe this check is probably not required"
Cc: Hariprasad S <hariprasad@chelsio.com>
Cc: netdev@vger.kernel.org
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 27 Jun 2014 15:36:16 +0000 (08:36 -0700)]
inet: move ipv6only in sock_common
When an UDP application switches from AF_INET to AF_INET6 sockets, we
have a small performance degradation for IPv4 communications because of
extra cache line misses to access ipv6only information.
This can also be noticed for TCP listeners, as ipv6_only_sock() is also
used from __inet_lookup_listener()->compute_score()
This is magnified when SO_REUSEPORT is used.
Move ipv6only into struct sock_common so that it is available at
no extra cost in lookups.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 2 Jul 2014 06:09:32 +0000 (23:09 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2014-07-01
This series contains updates to i40e, i40evf, igb and ixgbe.
Shannon adds the Base Address High and Low to the admin queue structure
to simplify the logic in the configuration routines. Also adds code to
clear all queues and interrupts to help clean up after a PXE or other
early boot activity.
Kevin fixes mask assignment value since -1 cannot be used for unsigned
integer types.
Mitch fixes an issue where in some circumstances the reply from the PF
would come back before we were able to properly modify the admin queue
pending and required flags. This would mess up the flags and put the
driver in an indeterminate state, so fix this by simply setting the flags
before sending the request to the admin queue. Also changes the branding
string for i40evf to reduce confusion and to match up with our other
marketing materials.
Kamil adds a new variable defining admin send queue (ASQ) command write
back timeout to allow for dynamic modification of this timeout.
Anjali fix a bug in the flow director filter replay logic, so that we
call a replay after a sideband reset correctly.
Jesse adds code to initialize all members of the context descriptor to
prevent possible stale data.
Christopher fixes i40e to prevent writing to reserved bits, since the
queue index is only 0-127.
Jacob removes the unneeded header export.h from the i40e PTP code.
Fixes ixgbe PTP code where the PPS signal was not correct, as it
generates a one half HZ clock signal, it only generates one level
change per second. To generate a full clock, we need two level changes
per second.
Todd provides a fix for igb to bring up link when the PHY has powered
up, which was reported by Jeff Westfahl.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Fri, 27 Jun 2014 14:13:12 +0000 (16:13 +0200)]
bonding: allow to add vlans on top of empty bond
This limitation maybe had some reason in the past, but now there is not
one -> removing this.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Veaceslav Falico <vfalico@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 2 Jul 2014 01:56:15 +0000 (18:56 -0700)]
Merge branch 'cxgb4-next'
Hariprasad Shenai says:
====================
cxgb4: Fix for PCI passthrough and some Misc. fixes
This patch series fixes probe failure in VM when PF is exposed through PCI
Passthrough. Adds support to use firmware interface to get BAR0 value.
Replace the backdoor mechanism to access the HW memory with PCIe Window method
which fixes memory I/O. Also adds device ID of few more adapters for cxgb4 and
cxgb4vf driver.
The patches series is created against 'net-next' tree.
And includes patches on cxgb4, cxgb4vf and iw_cxgb4 driver.
Since this patch-series contains mainly cxgb4 related changes, we would like to
request this patch series to get merged via David Miller's 'net-next' tree.
We have included all the maintainers of respective drivers. Kindly review the
change and let us know in case of any review comments.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Hariprasad Shenai [Fri, 27 Jun 2014 13:53:51 +0000 (19:23 +0530)]
cxgb4vf: Adds device ID for few more Chelsio T4 Adapters
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hariprasad Shenai [Fri, 27 Jun 2014 13:53:50 +0000 (19:23 +0530)]
cxgb4: Adds device ID for few more Chelsio T4 Adapters
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hariprasad Shenai [Fri, 27 Jun 2014 13:53:49 +0000 (19:23 +0530)]
cxgb4: Replaced the backdoor mechanism to access the HW memory with PCIe Window method
Rip out a bunch of redundant PCI-E Memory Window Read/Write routines,
collapse the more general purpose routines into a single routine
thereby eliminating the need for a large stack frame (and extra data
copying) in the outer routine, change everything to use the improved
routine t4_memory_rw.
Based on origninal work by Casey Leedom <leedom@chelsio.com> and
Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hariprasad Shenai [Fri, 27 Jun 2014 13:53:48 +0000 (19:23 +0530)]
cxgb4: Use FW interface to get BAR0 value
Use the firmware interface to get the BAR0 value since we really don't want
to use the PCI-E Configuration Space Backdoor access which is owned by the
firmware.
Set up PCI-E Memory Window registers using the true values programmed into
BAR registers. When the PF4 "Master Function" is exported to a Virtual
Machine, the values returned by pci_resource_start() will be for the
synthetic PCI-E Configuration Space and not the real addresses. But we need
to program the PCI-E Memory Window address decoders with the real addresses
that we're going to be using in order to have accesses through the Memory
Windows work.
Based on origninal work by Casey Leedom <leedom@chelsio.com>
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hariprasad Shenai [Fri, 27 Jun 2014 13:53:47 +0000 (19:23 +0530)]
rdma/cxgb4: Fixes cxgb4 probe failure in VM when PF is exposed through PCI Passthrough
Change logic which determines our Physical Function at PCI Probe time.
Now we read the PL_WHOAMI register and get the Physical Function.
Pass Physical Function to Upper Layer Drivers in lld_info structure in the
new field "pf" added to lld_info. This is useful for the cases where the
PF, say PF4, is attached to a Virtual Machine via some form of "PCI
Pass Through" technology and the PCI Function shows up as PF0 in the VM.
Based on original work by Casey Leedom <leedom@chelsio.com>
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 2 Jul 2014 01:53:01 +0000 (18:53 -0700)]
Merge branch 'dp83640-next'
Stefan Sørensen says:
====================
dp83640: Increase support perout pins
This patch series increases the number of periodic output pins supported
on the dp83640 to 7, and allows for reprogramming the calibration pin.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Sørensen [Fri, 27 Jun 2014 10:05:33 +0000 (12:05 +0200)]
ptp: Allow reassigning calibration pin function
The ptp pin function programming does not allow calibration pin to change
function. This is problematic on hardware that uses the default calibration
pin for other purposes.
Removing this limitation does not impact calibration if userspace does not
reprogram the calibration pin.
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Sørensen [Fri, 27 Jun 2014 10:05:32 +0000 (12:05 +0200)]
dp83640: Get calibration pin with ptp_find_pin
For consistency, use the ptp_find_pin function to get the calibration pin,
not gpio_tab.
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Sørensen [Fri, 27 Jun 2014 10:05:31 +0000 (12:05 +0200)]
dp83640: Verify calibration pin assignment
This constraints the pin assignment to not allow the calibration function to
be reassigned and only allow reassigning the calibratin pin if only one phy is
connected.
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Sørensen [Fri, 27 Jun 2014 10:05:30 +0000 (12:05 +0200)]
dp83640: Increase supported perout pins to 7
This patch increases the number of supported periodic output pins from
1 to 7. The last pin is reserved for sync.
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Sørensen [Fri, 27 Jun 2014 10:05:29 +0000 (12:05 +0200)]
dp83640: Program pulsewidth2 values of perout triggers 0 and 1
Periodic output triggers 0 and 1 of the dp83640 has a programmable
duty-cycle which is controlled by the Pulsewidth2 field of the trigger
data register. This field is not documented in the datasheet, but it
is described in the "PHYTER Software Development Guide" section
3.1.4.1. Failing to set the field can result in unstable/no trigger
output.
Add programming of the Pulsewidth2 field, setting it to the same value
as the Pulsewidth field for a 50% duty cycle.
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 1 Jul 2014 22:52:37 +0000 (15:52 -0700)]
Merge branch 'bnx2x-next'
Yuval Mintz says:
====================
bnx2x: Enhancement patch series
This patch series introduces the ability to propagate link parameters
to VFs as well as control the VF link via hypervisor.
In addition, it contains 2 small improvements [one IOV-related and the
other improves performance on machines with short cache lines].
Please consider applying these patches to `net-next'.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Yuval Mintz [Thu, 26 Jun 2014 11:31:06 +0000 (14:31 +0300)]
bnx2x: Fail probe of VFs using an old incompatible driver
There are linux distributions where the inbox bnx2x driver contains SRIOV
support but doesn't contain the changes introduced in
b9871bcf
"bnx2x: VF RSS support - PF side".
A VF in a VM running that distribution over a new hypervisor will access
incorrect addresses when trying to transmit packets, causing an attention
in the hypervisor and making that VF inactive until FLRed.
The driver in the VM has to ne upgraded [no real way to overcome this], but
due to the HW attention currently arising upgrading the driver in the VM
would not suffice [since the VF needs also be FLRed if the previous driver
was already loaded].
This patch causes the PF to fail the acquire message from a VF running an
old problematic driver; The VF will then gracefully fail it's probe preventing
the HW attention [and allow clean upgrade of driver in VM].
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry Kravkov [Thu, 26 Jun 2014 11:31:05 +0000 (14:31 +0300)]
bnx2x: enlarge minimal alignemnt of data offset
This improves the performance of driver on machine with L1_CACHE_SHIFT of at
most 32 bytes [HW was planned for 64-byte aligned fastpath data].
Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry Kravkov [Thu, 26 Jun 2014 11:31:04 +0000 (14:31 +0300)]
bnx2x: VF can report link speed
Until now VFs were oblvious to the actual configured link parameters.
This patch does 2 things:
1. It enables a PF to inform its VF using the bulletin board of the link
configured, and allows the VF to present that information.
2. It adds support of `ndo_set_vf_link_state', allowing the hypervisor
to set the VF link state.
Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 1 Jul 2014 22:50:56 +0000 (15:50 -0700)]
Merge branch 'pktgen'
Jesper Dangaard Brouer says:
====================
Optimizing pktgen for single CPU performance
This series focus on optimizing "pktgen" for single CPU performance.
V2-series:
- Removed some patches
- Doc real reason for TX ring buffer filling up
NIC tuning for pktgen:
http://netoptimizer.blogspot.dk/2014/06/pktgen-for-network-overload-testing.html
General overload setup according to:
http://netoptimizer.blogspot.dk/2014/04/basic-tuning-for-network-overload.html
Hardware:
System: CPU E5-2630
NIC: Intel ixgbe/82599 chip
Testing done with net-next git tree on top of
commit
6623b41944 ("Merge branch 'master' of...jkirsher/net-next")
Pktgen script exercising race condition:
https://github.com/netoptimizer/network-testing/blob/master/pktgen/unit_test01_race_add_rem_device_loop.sh
Tool for measuring LOCK overhead:
https://github.com/netoptimizer/network-testing/blob/master/src/overhead_cmpxchg.c
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jesper Dangaard Brouer [Thu, 26 Jun 2014 11:16:59 +0000 (13:16 +0200)]
pktgen: RCU-ify "if_list" to remove lock in next_to_run()
The if_lock()/if_unlock() in next_to_run() adds a significant
overhead, because its called for every packet in busy loop of
pktgen_thread_worker(). (Thomas Graf originally pointed me
at this lock problem).
Removing these two "LOCK" operations should in theory save us approx
16ns (8ns x 2), as illustrated below we do save 16ns when removing
the locks and introducing RCU protection.
Performance data with CLONE_SKB==100000, TX-size=512, rx-usecs=30:
(single CPU performance, ixgbe 10Gbit/s, E5-2630)
* Prev :
5684009 pps --> 175.93ns (1/
5684009*10^9)
* RCU-fix:
6272204 pps --> 159.43ns (1/
6272204*10^9)
* Diff : +588195 pps --> -16.50ns
To understand this RCU patch, I describe the pktgen thread model
below.
In pktgen there is several kernel threads, but there is only one CPU
running each kernel thread. Communication with the kernel threads are
done through some thread control flags. This allow the thread to
change data structures at a know synchronization point, see main
thread func pktgen_thread_worker().
Userspace changes are communicated through proc-file writes. There
are three types of changes, general control changes "pgctrl"
(func:pgctrl_write), thread changes "kpktgend_X"
(func:pktgen_thread_write), and interface config changes "etcX@N"
(func:pktgen_if_write).
Userspace "pgctrl" and "thread" changes are synchronized via the mutex
pktgen_thread_lock, thus only a single userspace instance can run.
The mutex is taken while the packet generator is running, by pgctrl
"start". Thus e.g. "add_device" cannot be invoked when pktgen is
running/started.
All "pgctrl" and all "thread" changes, except thread "add_device",
communicate via the thread control flags. The main problem is the
exception "add_device", that modifies threads "if_list" directly.
Fortunately "add_device" cannot be invoked while pktgen is running.
But there exists a race between "rem_device_all" and "add_device"
(which normally don't occur, because "rem_device_all" waits 125ms
before returning). Background'ing "rem_device_all" and running
"add_device" immediately allow the race to occur.
The race affects the threads (list of devices) "if_list". The if_lock
is used for protecting this "if_list". Other readers are given
lock-free access to the list under RCU read sections.
Note, interface config changes (via proc) can occur while pktgen is
running, which worries me a bit. I'm assuming proc_remove() takes
appropriate locks, to assure no writers exists after proc_remove()
finish.
I've been running a script exercising the race condition (leading me
to fix the proc_remove order), without any issues. The script also
exercises concurrent proc writes, while the interface config is
getting removed.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jesper Dangaard Brouer [Thu, 26 Jun 2014 11:16:49 +0000 (13:16 +0200)]
pktgen: avoid expensive set_current_state() call in loop
Avoid calling set_current_state() inside the busy-loop in
pktgen_thread_worker(). In case of pkt_dev->delay, then it is still
used/enabled in pktgen_xmit() via the spin() call.
The set_current_state(TASK_INTERRUPTIBLE) uses a xchg, which implicit
is LOCK prefixed. I've measured the asm LOCK operation to take approx
8ns on this E5-2630 CPU. Performance increase corrolate with this
measurement.
Performance data with CLONE_SKB==100000, rx-usecs=30:
(single CPU performance, ixgbe 10Gbit/s, E5-2630)
* Prev:
5454050 pps --> 183.35ns (1/
5454050*10^9)
* Now:
5684009 pps --> 175.93ns (1/
5684009*10^9)
* Diff: +229959 pps --> -7.42ns
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jesper Dangaard Brouer [Thu, 26 Jun 2014 11:16:27 +0000 (13:16 +0200)]
pktgen: document tuning for max NIC performance
Using pktgen I'm seeing the ixgbe driver "push-back", due TX ring
running full. Thus, the TX ring is artificially limiting pktgen.
(Diagnose via "ethtool -S", look for "tx_restart_queue" or "tx_busy"
counters.)
Using ixgbe, the real reason behind the TX ring running full, is due
to TX ring not being cleaned up fast enough. The ixgbe driver combines
TX+RX ring cleanups, and the cleanup interval is affected by the
ethtool --coalesce setting of parameter "rx-usecs".
Do not increase the default NIC TX ring buffer or default cleanup
interval. Instead simply document that pktgen needs special NIC
tuning for maximum packet per sec performance.
Performance results with pktgen with clone_skb=100000.
TX ring size 512 (default), adjusting "rx-usecs":
(Single CPU performance, E5-2630, ixgbe)
-
3935002 pps - rx-usecs: 1 (irqs: 9346)
-
5132350 pps - rx-usecs: 10 (irqs: 99157)
-
5375111 pps - rx-usecs: 20 (irqs: 50154)
-
5454050 pps - rx-usecs: 30 (irqs: 33872)
-
5496320 pps - rx-usecs: 40 (irqs: 26197)
-
5502510 pps - rx-usecs: 50 (irqs: 21527)
TX ring size adjusting (ethtool -G), "rx-usecs==1" (default):
-
3935002 pps - tx-size: 512
-
5354401 pps - tx-size: 768
-
5356847 pps - tx-size: 1024
-
5327595 pps - tx-size: 1536
-
5356779 pps - tx-size: 2048
-
5353438 pps - tx-size: 4096
Notice after commit
6f25cd47d (pktgen: fix xmit test for BQL enabled
devices) pktgen uses netif_xmit_frozen_or_drv_stopped() and ignores
the BQL "stack" pause (QUEUE_STATE_STACK_XOFF) flag. This allow us to put
more pressure on the TX ring buffers.
It is the ixgbe_maybe_stop_tx() call that stops the transmits, and
pktgen respecting this in the call to netif_xmit_frozen_or_drv_stopped(txq).
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 26 Jun 2014 07:58:26 +0000 (09:58 +0200)]
openvswitch: introduce rtnl ops stub
This stub now allows userspace to see IFLA_INFO_KIND for ovs master and
IFLA_INFO_SLAVE_KIND for slave.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 26 Jun 2014 07:58:25 +0000 (09:58 +0200)]
rtnetlink: allow to register ops without ops->setup set
So far, it is assumed that ops->setup is filled up. But there might be
case that ops might make sense even without ->setup. In that case,
forbid to newlink and dellink.
This allows to register simple rtnl link ops containing only ->kind.
That allows consistent way of passing device kind (either device-kind or
slave-kind) to userspace.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ying Xue [Thu, 26 Jun 2014 07:56:31 +0000 (15:56 +0800)]
net: fix some typos in comment
In commit
371121057607e3127e19b3fa094330181b5b031e("net:
QDISC_STATE_RUNNING dont need atomic bit ops") the
__QDISC_STATE_RUNNING is renamed to __QDISC___STATE_RUNNING,
but the old names existing in comment are not replaced with
the new name completely.
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Greear [Wed, 25 Jun 2014 21:44:53 +0000 (14:44 -0700)]
ipv6: Allow accepting RA from local IP addresses.
This can be used in virtual networking applications, and
may have other uses as well. The option is disabled by
default.
A specific use case is setting up virtual routers, bridges, and
hosts on a single OS without the use of network namespaces or
virtual machines. With proper use of ip rules, routing tables,
veth interface pairs and/or other virtual interfaces,
and applications that can bind to interfaces and/or IP addresses,
it is possibly to create one or more virtual routers with multiple
hosts attached. The host interfaces can act as IPv6 systems,
with radvd running on the ports in the virtual routers. With the
option provided in this patch enabled, those hosts can now properly
obtain IPv6 addresses from the radvd.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Greear [Wed, 25 Jun 2014 21:44:52 +0000 (14:44 -0700)]
ipv6: Add more debugging around accept-ra logic.
This is disabled by default, just like similar debug info
already in this module. But, makes it easier to find out
why RA is not being accepted when debugging strange behaviour.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jacob Keller [Wed, 28 May 2014 07:21:47 +0000 (07:21 +0000)]
ixgbe: change PTP NSECS_PER_SEC to IXGBE_PTP_PPS_HALF_SECOND
The PPS signal is not correct, as it generates a one half HZ clock
signal, as it only generates one level change per second. To generate a
full clock, we need two level changes per second. Also, change the name
of the #define, in order to prevent confusion between it and
NSEC_PER_SEC which is not guaranteed to be a 64bit value.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Todd Fujinaka [Tue, 17 Jun 2014 06:58:11 +0000 (06:58 +0000)]
igb: bring link up when PHY is powered up
Call igb_setup_link() when the PHY is powered up.
Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Reported-by: Jeff Westfahl <jeff.westfahl@ni.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Catherine Sullivan [Wed, 4 Jun 2014 20:42:15 +0000 (20:42 +0000)]
i40e/i40evf: Bump i40e to 0.4.19 and i40evf to 0.9.38
Bump versions.
Change-ID: Id5082d7c3995fbddd22b3e303d804c86fcd240a3
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Mitch Williams [Wed, 4 Jun 2014 20:42:10 +0000 (20:42 +0000)]
i40evf: change branding string
Add a slash to the branding string to reduce confusion and match up with
our other marketing materials.
Change-ID: I8229e8c3e43083b7a29c859a250f8d2d4dc46b9e
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Wed, 4 Jun 2014 20:42:04 +0000 (20:42 +0000)]
i40e: remove linux/export.h header from i40e_ptp.c
We don't need the export.h header so we can just go ahead and remove it.
Change-ID: I9057396b141ee449d8299409081358b9270a7c4d
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Christopher Pau [Wed, 4 Jun 2014 20:41:59 +0000 (20:41 +0000)]
i40e: limit GLLAN_TXPRE_QDIS to QINDX 0-127
Prevent writing to reserved bits, queue index is 0-127
Change-ID: Ic923e1c92012a265983414acd8f547c4bdac2e34
Signed-off-by: Christopher Pau <christopher.pau@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jesse Brandeburg [Wed, 4 Jun 2014 20:41:54 +0000 (20:41 +0000)]
i40e/i40evf: initialize context descriptor
Driver needs to initialize all members of context descriptor. Stale
data is possible otherwise.
Change-ID: Idc6b53af45583509da42d5ec0824cbaf78aee64f
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Anjali Singhai Jain [Wed, 4 Jun 2014 20:41:48 +0000 (20:41 +0000)]
i40e: FD filter replay logic bug fix
With the auto_disable flags added there was a bug that was causing the
replay logic to not work correctly.
This patch fixes the issue so that we call a replay after a sideband
reset correctly.
Change-ID: I005fe1ac361188ee5b19517a83c922038cba1b00
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Kamil Krawczyk [Wed, 4 Jun 2014 20:41:43 +0000 (20:41 +0000)]
i40e/i40evf: add ASQ write back timeout variable to AQ structure
Add new variable defining ASQ command write back timeout to allow for
dynamic modification of this timeout. Initialize it on AQ initialize
routine with default value, vary it on device ID.
Change-ID: I5c9908f9d7c5455634353b694a986d6f146d1b9d
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Mitch Williams [Wed, 4 Jun 2014 20:41:38 +0000 (20:41 +0000)]
i40evf: set flags before sending message
In some circumstances, the firmware could beat us to the punch, and the
reply from the PF would come back before we were able to properly modify
the aq_pending and aq_required flags. This would mess up the flags and
put the driver in an indeterminate state, much like Schrödinger's cat.
However, unlike the cat, the driver is definitely dead.
To fix this, simply set the flags before sending the request to the AQ.
This way, it won't matter if the interrupt comes back too soon.
Change-ID: I9784655e475675ebcb3140cc7f36f4a96aaadce5
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Kevin Scott [Wed, 4 Jun 2014 20:41:33 +0000 (20:41 +0000)]
i40e: Correct mask assignment value
Make mask value of all 1s. Value of -1 can't be used for u32 type.
Change-ID: I49d58b77639939fe7447a229dbf1f4a1bf7419ce
Signed-off-by: Kevin Scott <kevin.c.scott@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Shannon Nelson [Wed, 4 Jun 2014 20:41:27 +0000 (20:41 +0000)]
i40e: clear all queues and interrupts
Per a recent HW designer comment, this code is for ripping through the
queues and interrupts to fully disable them on driver init, specifically
to help clean up after a PXE or other early boot activity.
Change-ID: I32ed452021a1c2b06dace1969976f882a37b9741
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Shannon Nelson [Wed, 4 Jun 2014 20:41:22 +0000 (20:41 +0000)]
i40e/i40evf: clear aq bah-bal on shutdown
Clear the AQ BAH and BAL registers on a clean shutdown to help make sure
all is tidy when the driver is done.
Change-ID: I393e92680247daa52a8e00bab183213672d73578
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Shannon Nelson [Wed, 4 Jun 2014 20:41:17 +0000 (20:41 +0000)]
i40e/i40evf: Add base address registers to aq struct
Add the Base Address High and Low to the admin queue struct to simplify
another bit of "which context" logic in the config routines.
Change-ID: Iae195a7da3baffc1a9d522119e1e2b427068ad07
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Octavian Purdila [Sat, 28 Jun 2014 18:20:54 +0000 (21:20 +0300)]
tcp: tcp_conn_request: fix build error when IPv6 is disabled
Fixes build error introduced by commit
1fb6f159fd21c64 (tcp: add
tcp_conn_request):
net/ipv4/tcp_input.c: In function 'pr_drop_req':
net/ipv4/tcp_input.c:5889:130: error: 'struct sock_common' has no member named 'skc_v6_daddr'
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 27 Jun 2014 22:53:54 +0000 (15:53 -0700)]
Merge branch 'tcp_conn_request_unification'
Octavian Purdila says:
====================
tcp: remove code duplication in tcp_v[46]_conn_request
This patch series unifies the TCPv4 and TCPv6 connection request flow
in a single new function (tcp_conn_request).
The first 3 patches are small cleanups and fixes found during the code
merge process.
The next patches add new methods in tcp_request_sock_ops to abstract
the IPv4/IPv6 operations and keep the TCP connection request flow
common.
To identify potential performance issues this patch has been tested
by measuring the connection per second rate with nginx and a httperf
like client (to allow for concurrent connection requests - 256 CC were
used during testing) using the loopback interface. A dual-core i5 Ivy
Bridge processor was used and each process was bounded to a different
core to make results consistent.
Results for IPv4, unit is connections per second, higher is better, 20
measurements have been collected:
before after
min 27917 27962
max 28262 28366
avg 28094.1 28212.75
stdev 87.35 97.26
Results for IPv6, unit is connections per second, higher is better, 20
measurements have been collected:
before after
min 24813 24877
max 25029 25119
avg 24935.5 25017
stdev 64.13 62.93
Changes since v1:
* add benchmarking datapoints
* fix a few issues in the last patch (IPv6 related)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:10:02 +0000 (17:10 +0300)]
tcp: add tcp_conn_request
Create tcp_conn_request and remove most of the code from
tcp_v4_conn_request and tcp_v6_conn_request.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:10:01 +0000 (17:10 +0300)]
tcp: add queue_add_hash to tcp_request_sock_ops
Add queue_add_hash member to tcp_request_sock_ops so that we can later
unify tcp_v4_conn_request and tcp_v6_conn_request.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:10:00 +0000 (17:10 +0300)]
tcp: add mss_clamp to tcp_request_sock_ops
Add mss_clamp member to tcp_request_sock_ops so that we can later
unify tcp_v4_conn_request and tcp_v6_conn_request.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:09:59 +0000 (17:09 +0300)]
tcp: unify tcp_v4_rtx_synack and tcp_v6_rtx_synack
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:09:58 +0000 (17:09 +0300)]
tcp: add send_synack method to tcp_request_sock_ops
Create a new tcp_request_sock_ops method to unify the IPv4/IPv6
signature for tcp_v[46]_send_synack. This allows us to later unify
tcp_v4_rtx_synack with tcp_v6_rtx_synack and tcp_v4_conn_request with
tcp_v4_conn_request.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:09:57 +0000 (17:09 +0300)]
tcp: add init_seq method to tcp_request_sock_ops
More work in preparation of unifying tcp_v4_conn_request and
tcp_v6_conn_request: indirect the init sequence calls via the
tcp_request_sock_ops.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:09:56 +0000 (17:09 +0300)]
tcp: move around a few calls in tcp_v6_conn_request
Make the tcp_v6_conn_request calls flow similar with that of
tcp_v4_conn_request.
Note that want_cookie can be true only if isn is zero and that is why
we can move the if (want_cookie) block out of the if (!isn) block.
Moving security_inet_conn_request() has a couple of side effects:
missing inet_rsk(req)->ecn_ok update and the req->cookie_ts
update. However, neither SELinux nor Smack security hooks seems to
check them. This change should also avoid future different behaviour
for IPv4 and IPv6 in the security hooks.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:09:55 +0000 (17:09 +0300)]
tcp: add route_req method to tcp_request_sock_ops
Create wrappers with same signature for the IPv4/IPv6 request routing
calls and use these wrappers (via route_req method from
tcp_request_sock_ops) in tcp_v4_conn_request and tcp_v6_conn_request
with the purpose of unifying the two functions in a later patch.
We can later drop the wrapper functions and modify inet_csk_route_req
and inet6_cks_route_req to use the same signature.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:09:54 +0000 (17:09 +0300)]
tcp: add init_cookie_seq method to tcp_request_sock_ops
Move the specific IPv4/IPv6 cookie sequence initialization to a new
method in tcp_request_sock_ops in preparation for unifying
tcp_v4_conn_request and tcp_v6_conn_request.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:09:53 +0000 (17:09 +0300)]
tcp: add init_req method to tcp_request_sock_ops
Move the specific IPv4/IPv6 intializations to a new method in
tcp_request_sock_ops in preparation for unifying tcp_v4_conn_request
and tcp_v6_conn_request.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:09:52 +0000 (17:09 +0300)]
net: remove inet6_reqsk_alloc
Since pktops is only used for IPv6 only and opts is used for IPv4
only, we can move these fields into a union and this allows us to drop
the inet6_reqsk_alloc function as after this change it becomes
equivalent with inet_reqsk_alloc.
This patch also fixes a kmemcheck issue in the IPv6 stack: the flags
field was not annotated after a request_sock was allocated.
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:09:51 +0000 (17:09 +0300)]
tcp: tcp_v[46]_conn_request: fix snt_synack initialization
Commit
016818d07 (tcp: TCP Fast Open Server - take SYNACK RTT after
completing 3WHS) changes the code to only take a snt_synack timestamp
when a SYNACK transmit or retransmit succeeds. This behaviour is later
broken by commit
843f4a55e (tcp: use tcp_v4_send_synack on first
SYN-ACK), as snt_synack is now updated even if tcp_v4_send_synack
fails.
Also, commit
3a19ce0ee (tcp: IPv6 support for fastopen server) misses
the required IPv6 updates for
016818d07.
This patch makes sure that snt_synack is updated only when the SYNACK
trasnmit/retransmit succeeds, for both IPv4 and IPv6.
Cc: Cardwell <ncardwell@google.com>
Cc: Daniel Lee <longinus00@gmail.com>
Cc: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octavian Purdila [Wed, 25 Jun 2014 14:09:50 +0000 (17:09 +0300)]
tcp: cookie_v4_init_sequence: skb should be const
Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 27 Jun 2014 19:59:38 +0000 (12:59 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2014-06-26
This series contains updates to i40e and i40evf.
Kamil provides a cleanup patch to i40e where we do not need to acquire the
NVM for shadow RAM checksum calculation, since we only read the shadow RAM
through SRCTL register.
Paul provides a fix for handling HMC for big endian architectures for i40e
and i40evf.
Mitch provides four cleanup and fixes for i40evf. Fix an issue where if
the VF driver fails to complete early init, then rmmod can cause a softlock
when the driver tries to stop a watchdog timer that never got initialized.
So add a check to see if the timer is actually initialized before stopping
it. Make the function i40evf_send_api_ver() return more useful information,
instead of just returning -EIO by propagating firmware errors back to the
caller and log a message if the PF sends an invalid reply. Fix up a log
message that was missing a word, which makes the log message more readable.
Fix an initialization failure if many VFs are instantiated at the same time
and the VF module is autoloaded by simply resending firmware request if
there is no response the first time.
Jacob does a rename of the function i40e_ptp_enable() to
i40e_ptp_feature_enable(), like he did for ixgbe, to reduce possible
confusion and ambugity in the purpose of the function. Does follow on
PTP work on i40e, like he did for ixgbe, by breaking the PTP hardware
control from the ioctl command for timestamping mode. By doing this,
we can maintain state about the 1588 timestamping mode and properly
re-enable to the last known mode during a re-initialization of 1588 bits.
Anjali cleans up the i40e driver where TCP-IPv4 filters were being added
twice, which seems to be left over from when we had to add two PTYPEs for
one filter. Fixes the flow director sideband logic to detect when there
is a full flow director table. Also fixes the programming of FDIR where
a couple of fields in the descriptor setup that were not being
programmed, which left the opportunity for stale data to be pushed as
part of the descriptor next time it was used.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 27 Jun 2014 19:51:00 +0000 (12:51 -0700)]
Merge branch 'tipc-next'
Jon Maloy says:
====================
tipc: new unicast transmission code
As a step towards making the data transmission code more maintainable
and performant, we introduce a number of new functions, both for
building, sending and rejecting messages. The new functions will
eventually be used for alla data transmission, user data unicast,
service internal messaging, and multicast/broadcast.
We start with this series, where we introduce the functions, and
let user data unicast and the internal connection protocol use them.
The remaining users will come in a later series.
There are only minor changes to data structures, and no protocol
changes, so the older functions can still be used in parallel for
some time. Until the old functions are removed, we use temporary
names for the new functions, such as tipc_build_msg2, tipc_link_xmit2.
It should be noted that the first two commits are unrelated to the
rest of the series.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Thu, 26 Jun 2014 01:41:42 +0000 (20:41 -0500)]
tipc: simplify connection congestion handling
As a consequence of the recently introduced serialized access
to the socket in commit
8d94168a761819d10252bab1f8de6d7b202c3baa
("tipc: same receive code path for connection protocol and data
messages") we can make a number of simplifications in the
detection and handling of connection congestion situations.
- We don't need to keep two counters, one for sent messages and one
for acked messages. There is no longer any risk for races between
acknowledge messages arriving in BH and data message sending
running in user context. So we merge this into one counter,
'sent_unacked', which is incremented at sending and subtracted
from at acknowledge reception.
- We don't need to set the 'congested' field in tipc_port to
true before we sent the message, and clear it when sending
is successful. (As a matter of fact, it was never necessary;
the field was set in link_schedule_port() before any wakeup
could arrive anyway.)
- We keep the conditions for link congestion and connection connection
congestion separated. There would otherwise be a risk that an arriving
acknowledge message may wake up a user sleeping because of link
congestion.
- We can simplify reception of acknowledge messages.
We also make some cosmetic/structural changes:
- We rename the 'congested' field to the more correct 'link_cong´.
- We rename 'conn_unacked' to 'rcv_unacked'
- We move the above mentioned fields from struct tipc_port to
struct tipc_sock.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>