Eric Dumazet [Thu, 8 Aug 2013 21:38:47 +0000 (14:38 -0700)]
net: attempt high order allocations in sock_alloc_send_pskb()
Adding paged frags skbs to af_unix sockets introduced a performance
regression on large sends because of additional page allocations, even
if each skb could carry at least 100% more payload than before.
We can instruct sock_alloc_send_pskb() to attempt high order
allocations.
Most of the time, it does a single page allocation instead of 8.
I added an additional parameter to sock_alloc_send_pskb() to
let other users to opt-in for this new feature on followup patches.
Eric Dumazet [Thu, 8 Aug 2013 21:37:32 +0000 (14:37 -0700)]
af_unix: improve STREAM behavior with fragmented memory
unix_stream_sendmsg() currently uses order-2 allocations,
and we had numerous reports this can fail.
The __GFP_REPEAT flag present in sock_alloc_send_pskb() is
not helping.
This patch extends the work done in commit eb6a24816b247c
("af_unix: reduce high order page allocations) for
datagram sockets.
This opens the possibility of zero copy IO (splice() and
friends)
The trick is to not use skb_pull() anymore in recvmsg() path,
and instead add a @consumed field in UNIXCB() to track amount
of already read payload in the skb.
There is a performance regression for large sends
because of extra page allocations that will be addressed
in a follow-up patch, allowing sock_alloc_send_pskb()
to attempt high order page allocations.
Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yuchung Cheng [Thu, 8 Aug 2013 21:06:22 +0000 (14:06 -0700)]
tcp: add server ip to encrypt cookie in fast open
Encrypt the cookie with both server and client IPv4 addresses,
such that multi-homed server will grant different cookies
based on both the source and destination IPs. No client change
is needed since cookie is opaque to the client.
Signed-off-by: Yuchung Cheng <ycheng@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yijing Wang [Thu, 8 Aug 2013 13:03:12 +0000 (21:03 +0800)]
tg3: clean up unnecessary MSI/MSI-X capability find
PCI core will initialize device MSI/MSI-X capability in
pci_msi_init_pci_dev(). So device driver should use
pci_dev->msi_cap/msix_cap to determine whether the device
support MSI/MSI-X instead of using
pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX).
Access to PCIe device config space again will consume more time.
Signed-off-by: Yijing Wang <wangyijing@huawei.com> Cc: Nithin Nayak Sujir <nsujir@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Yijing Wang [Thu, 8 Aug 2013 13:02:56 +0000 (21:02 +0800)]
netxen: clean up unnecessary MSI/MSI-X capability find
PCI core will initialize device MSI/MSI-X capability in
pci_msi_init_pci_dev(). So device driver should use
pci_dev->msi_cap/msix_cap to determine whether the device
support MSI/MSI-X instead of using
pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX).
Access to PCIe device config space again will consume more time.
Signed-off-by: Yijing Wang <wangyijing@huawei.com> Cc: Manish Chopra <manish.chopra@qlogic.com> Cc: Sony Chacko <sony.chacko@qlogic.com> Cc: Rajesh Borundia <rajesh.borundia@qlogic.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Yijing Wang [Thu, 8 Aug 2013 13:02:44 +0000 (21:02 +0800)]
myri10ge: clean up unnecessary MSI/MSI-X capability find
PCI core will initialize device MSI/MSI-X capability in
pci_msi_init_pci_dev(). So device driver should use
pci_dev->msi_cap/msix_cap to determine whether the device
support MSI/MSI-X instead of using
pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX).
Access to PCIe device config space again will consume more time.
Signed-off-by: Yijing Wang <wangyijing@huawei.com> Cc: Andrew Gallatin <gallatin@myri.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Yijing Wang [Thu, 8 Aug 2013 13:02:36 +0000 (21:02 +0800)]
bnx2x: clean up unnecessary MSI/MSI-X capability find
PCI core will initialize device MSI/MSI-X capability in
pci_msi_init_pci_dev(). So device driver should use
pci_dev->msi_cap/msix_cap to determine whether the device
support MSI/MSI-X instead of using
pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX).
Access to PCIe device config space again will consume more time.
Signed-off-by: Yijing Wang <wangyijing@huawei.com> Cc: Eilon Greenstein <eilong@broadcom.com> Cc: netdev@vger.kernel.org Acked-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Yijing Wang [Thu, 8 Aug 2013 13:02:22 +0000 (21:02 +0800)]
bnx2: clean up unnecessary MSI/MSI-X capability find
PCI core will initialize device MSI/MSI-X capability in
pci_msi_init_pci_dev(). So device driver should use
pci_dev->msi_cap/msix_cap to determine whether the device
support MSI/MSI-X instead of using
pci_find_capability(pci_dev, PCI_CAP_ID_MSI/MSIX).
Access to PCIe device config space again will consume more time.
Signed-off-by: Yijing Wang <wangyijing@huawei.com> Cc: Michael Chan <mchan@broadcom.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Tue, 6 Aug 2013 19:18:13 +0000 (21:18 +0200)]
net: sctp: trivial: update bug report in header comment
With the restructuring of the lksctp.org site, we only allow bug
reports through the SCTP mailing list linux-sctp@vger.kernel.org,
not via SF, as SF is only used for web hosting and nothing more.
While at it, also remove the obvious statement that bugs will be
fixed and incooperated into the kernel.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Which will allow userspace configuration of the IGMP unsolicited report
interval (see below) in milliseconds. The defaults are 10000ms for IGMPv2
and 1000ms for IGMPv3 in accordance with RFC2236 and RFC3376.
Background:
If an IGMP join packet is lost you will not receive data sent to the
multicast group so if no data arrives from that multicast group in a
period of time after the IGMP join a second IGMP join will be sent. The
delay between joins is the "IGMP Unsolicited Report Interval".
Prior to this patch this value was hard coded in the kernel to 10s for
IGMPv2 and 1s for IGMPv3. 10s is unsuitable for some use-cases, such as
IPTV as it can cause channel change to be slow in the presence of packet
loss.
This patch allows the value to be overridden from userspace for both
IGMPv2 and IGMPv3 such that it can be tuned accoding to the network.
Tested with Wireshark and a simple program to join a (non-existent)
multicast group. The distribution of timings for the second join differ
based upon setting the procfs knobs.
igmpvX_unsolicited_report_interval is intended to follow the pattern
established by force_igmp_version, and while a procfs entry has been added
a corresponding sysctl knob has not as it is my understanding that sysctl
is deprecated[1].
[1]: http://lwn.net/Articles/247243/
Signed-off-by: William Manley <william.manley@youview.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: David S. Miller <davem@davemloft.net>
William Manley [Tue, 6 Aug 2013 18:03:14 +0000 (19:03 +0100)]
net: igmp: Don't flush routing cache when force_igmp_version is modified
The procfs knob /proc/sys/net/ipv4/conf/*/force_igmp_version allows the
IGMP protocol version to use to be explicitly set. As a side effect this
caused the routing cache to be flushed as it was declared as a
DEVINET_SYSCTL_FLUSHING_ENTRY. Flushing is unnecessary and this patch
makes it so flushing does not occur.
Requested by Hannes Frederic Sowa as he was reviewing other patches
adding procfs entries.
Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: William Manley <william.manley@youview.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: David S. Miller <davem@davemloft.net>
William Manley [Tue, 6 Aug 2013 18:03:13 +0000 (19:03 +0100)]
net: igmp: Reduce Unsolicited report interval to 1s when using IGMPv3
If an IGMP join packet is lost you will not receive data sent to the
multicast group so if no data arrives from that multicast group in a
period of time after the IGMP join a second IGMP join will be sent. The
delay between joins is the "IGMP Unsolicited Report Interval".
Previously this value was hard coded to be chosen randomly between 0-10s.
This can be too long for some use-cases, such as IPTV as it can cause
channel change to be slow in the presence of packet loss.
The value 10s has come from IGMPv2 RFC2236, which was reduced to 1s in
IGMPv3 RFC3376. This patch makes the kernel use the 1s value from the
later RFC if we are operating in IGMPv3 mode. IGMPv2 behaviour is
unaffected.
Tested with Wireshark and a simple program to join a (non-existent)
multicast group. The distribution of timings for the second join differ
based upon setting /proc/sys/net/ipv4/conf/eth0/force_igmp_version.
Signed-off-by: William Manley <william.manley@youview.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: David S. Miller <davem@davemloft.net>
In case of bond_add_vlan() failure currently we'll have the vlan's
refcnt bumped up in all slaves, but it will never go down because it
failed to get added to the bond, so properly unwind the added vlan if
bond_add_vlan fails.
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Acked-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
bonding: change the bond's vlan syncing functions with the standard ones
Now we have vlan_vids_add/del_by_dev() which serve the same purpose as
bond's bond_add/del_vlans_on_slave() with the good side effect of
reverting the changes if one of the additions fails.
There's only 1 change in the behaviour of enslave: if adding of the
vlans to the slave fails, we'll fail the enslaving because otherwise we
might delete some vlan that wasn't added by the bonding.
The only way this may happen is with ENOMEM currently, so we're in trouble
anyway.
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Acked-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 6 Aug 2013 10:32:11 +0000 (03:32 -0700)]
net: add SNMP counters tracking incoming ECN bits
With GRO/LRO processing, there is a problem because Ip[6]InReceives SNMP
counters do not count the number of frames, but number of aggregated
segments.
Its probably too late to change this now.
This patch adds four new counters, tracking number of frames, regardless
of LRO/GRO, and on a per ECN status basis, for IPv4 and IPv6.
Ip[6]NoECTPkts : Number of packets received with NOECT
Ip[6]ECT1Pkts : Number of packets received with ECT(1)
Ip[6]ECT0Pkts : Number of packets received with ECT(0)
Ip[6]CEPkts : Number of packets received with Congestion Experienced
The IP tunnel hash heads can be embedded in the per-net structure
since it is a fixed size. Reduce the size so that the total structure
fits in a page size. The original size was overly large, even NETDEV_HASHBITS
is only 8 bits!
Also, add some white space for readability.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Pravin B Shelar <pshelar@nicira.com>. Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Tue, 6 Aug 2013 22:50:11 +0000 (15:50 -0700)]
bnx2: Add pci shutdown handler.
WoL and power state changes will now be done in the shutdown handler.
open/close/ethtool will no longer change the power state. NVRAM
operations can now be permitted whether the device is up or down.
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
be2net: Initialize "status" in be_cmd_get_die_temperature()
Uninitialized value was being returned in the non-failure case. 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>
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>
The BE2 FW GET_PHY_DETAILS cmd does not return fixed speeds supported.
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>
For SH-R and Lancer-R, use the FW supported values for Max unicast MACs,
Max VLANs and Max multicast MACs.
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>
be2net: Do not call get_die_temperature cmd for VF
This is a chip wide value and the PFs already report it.
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>
be2net: Adding more speeds reported by get_settings
The new speeds are supported by variants of the Skyhawk-R chip.
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>
Claudiu Manoil [Mon, 5 Aug 2013 14:20:10 +0000 (17:20 +0300)]
gianfar: Cleanup TxFCB insertion on xmit
Cleanup gfar_start_xmit()'s fast path by factoring out "redundant"
FCB insertion code (repeated gfar_add_fcb() calls and related)
and by reducing the number of if() clauses (i.e. if(fcb) checks).
Improve maintainability (e.g. there's less code and easier to read)
also by introducing do_csum and do_vlan to mark the other 2 Tx TOE
functionalities, following the same model as do_tstamp.
fcb_len may also be 0 now, to mark that Tx FCB insertion conditions
(do_csum, do_vlan, do_tstamp) have not been met.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Claudiu Manoil [Mon, 5 Aug 2013 14:20:09 +0000 (17:20 +0300)]
gianfar: Fix Tx csum generation errata handling
Both [eTSEC76] and [eTSEC12] errata relate to Tx checksum generation
(for some MPC83xx and MCP8548 older revisions). They require the same
workaround: manual checksum computation and insertion, and disabling
the H/W Tx csum acceleration feature (per frame) through Tx FCB
(Frame Control Block) csum offload settings.
The workaround for [eTSEC76] needs to be fixed because it currently
fails to disable H/W Tx csum insertion via FCB. This patch fixes it
and provides a common workaround implementation for both Tx csum errata.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
We're already protected by RTNL lock, so nothing can happen to bond/its
slaves, and thus the locking is useless here (both bond->lock and
bond->curr_active_slave).
Also, add ASSERT_RTNL() both to bond_set_rx_mode() and bond_hw_addr_swap()
to catch possible uses of it without RTNL locking.
This patch also saves us from a lockdep false-positive in
bond_set_rx_mode() vs bond_hw_addr_swap().
CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
bonding: add bond_time_in_interval() and use it for time comparison
Currently we use a lot of time comparison math for arp_interval
comparisons, which are sometimes quite hard to read and understand.
All the time comparisons have one pattern:
(time - arp_interval_jiffies) <= jiffies <= (time + mod *
arp_interval_jiffies + arp_interval_jiffies/2)
Introduce a new helper - bond_time_in_interval(), which will do the math in
one place and, thus, will clean up the logical code. This helper introduces
a bit of overhead (by always calculating the jiffies from arp_interval),
however it's really not visible, considering that functions using it
usually run once in arp_interval milliseconds.
There are several lines slightly over 80 chars, however breaking them would
result in more hard-to-read code than several character after the 80 mark.
CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Simple cleanup to not call slave_last_rx() on every time function. It won't
give any measurable boost - but looks cleaner and easier to understand.
There are no time-consuming functions in between these calls, so it's safe
to call it in the beginning only once.
CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jingoo Han [Mon, 5 Aug 2013 09:04:51 +0000 (18:04 +0900)]
net: mlx4: Staticize local functions
These local functions are used only in this file.
Fix the following sparse warnings:
drivers/net/ethernet/mellanox/mlx4/cmd.c:803:5: warning: symbol 'MLX4_CMD_UPDATE_QP_wrapper' was not declared. Should it be static?
drivers/net/ethernet/mellanox/mlx4/cmd.c:812:5: warning: symbol 'MLX4_CMD_GET_OP_REQ_wrapper' was not declared. Should it be static?
drivers/net/ethernet/mellanox/mlx4/cmd.c:1547:5: warning: symbol 'mlx4_master_immediate_activate_vlan_qos' was not declared. Should
it be static?
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-By: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jingoo Han [Mon, 5 Aug 2013 09:03:00 +0000 (18:03 +0900)]
net: micrel: Staticize local functions
These local functions are used only in this file.
Fix the following sparse warnings:
drivers/net/ethernet/micrel/ks8842.c:708:6: warning: symbol 'ks8842_handle_rx' was not declared. Should it be static?
drivers/net/ethernet/micrel/ks8842.c:718:6: warning: symbol 'ks8842_handle_tx' was not declared. Should it be static?
drivers/net/ethernet/micrel/ks8842.c:727:6: warning: symbol 'ks8842_handle_rx_overrun' was not declared. Should it be static?
drivers/net/ethernet/micrel/ks8842.c:735:6: warning: symbol 'ks8842_tasklet' was not declared. Should it be static?
drivers/net/ethernet/micrel/ks8851_mll.c:691:6: warning: symbol 'ks_enable_qmu' was not declared. Should it be static?
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jingoo Han [Mon, 5 Aug 2013 09:02:02 +0000 (18:02 +0900)]
be2net: Staticize local functions
These local functions are used only in this file.
Fix the following sparse warnings:
drivers/net/ethernet/emulex/benet/be_main.c:475:6: warning: symbol 'populate_erx_stats' was not declared. Should it be static?
drivers/net/ethernet/emulex/benet/be_main.c:1485:6: warning: symbol 'be_rx_compl_process_gro' was not declared. Should it be static?
drivers/net/ethernet/emulex/benet/be_main.c:2262:5: warning: symbol 'be_poll' was not declared. Should it be static?
drivers/net/ethernet/emulex/benet/be_main.c:3223:6: warning: symbol 'flash_cookie' was not declared. Should it be static?
drivers/net/ethernet/emulex/benet/be_main.c:3280:27: warning: symbol 'get_fsec_info' was not declared. Should it be static?
drivers/net/ethernet/emulex/benet/be_cmds.c:1013:5: warning: symbol 'be_cmd_mccq_ext_create' was not declared. Should it be static?
drivers/net/ethernet/emulex/benet/be_cmds.c:1071:5: warning: symbol 'be_cmd_mccq_org_create' was not declared. Should it be static?
drivers/net/ethernet/emulex/benet/be_cmds.c:3166:5: warning: symbol 'be_cmd_get_profile_config_mbox' was not declared. Should it be
static?
drivers/net/ethernet/emulex/benet/be_cmds.c:3194:5: warning: symbol 'be_cmd_get_profile_config_mccq' was not declared. Should it be
static?
drivers/net/ethernet/emulex/benet/be_roce.c:96:6: warning: symbol '_be_roce_dev_remove' was not declared. Should it be static?
drivers/net/ethernet/emulex/benet/be_roce.c:113:6: warning: symbol '_be_roce_dev_open' was not declared. Should it be static?
drivers/net/ethernet/emulex/benet/be_roce.c:129:6: warning: symbol '_be_roce_dev_close' was not declared. Should it be static?
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jingoo Han [Mon, 5 Aug 2013 09:00:04 +0000 (18:00 +0900)]
bna: Staticize local functions
bna_rx_sm_stop_wait_entry(), bna_rx_sm_rxf_stop_wait_entry(),
bna_rx_sm_started_entry(), bna_rx_sm_cleanup_wait_entry(),
and bna_rx_sm_cleanup_wait() are used only in this file.
Fix the following sparse warnings:
drivers/net/ethernet/brocade/bna/bna_tx_rx.c:1423:1: warning: symbol 'bna_rx_sm_stop_wait_entry' was not declared. Should it be
static?
drivers/net/ethernet/brocade/bna/bna_tx_rx.c:1476:1: warning: symbol 'bna_rx_sm_rxf_stop_wait_entry' was not declared. Should it be
static?
drivers/net/ethernet/brocade/bna/bna_tx_rx.c:1532:1: warning: symbol 'bna_rx_sm_started_entry' was not declared. Should it be
static?
drivers/net/ethernet/brocade/bna/bna_tx_rx.c:1597:1: warning: symbol 'bna_rx_sm_cleanup_wait_entry' was not declared. Should it be
static?
drivers/net/ethernet/brocade/bna/bna_tx_rx.c:1602:1: warning: symbol 'bna_rx_sm_cleanup_wait' was not declared. Should it be static?
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 1 Aug 2013 13:49:52 +0000 (06:49 -0700)]
ax88179_178a: avoid copy of tx tcp packets
ax88179_tx_fixup() has quite complex code trying to push 8 bytes
of control data (len/mss), but fails to do it properly for TCP packets,
incurring an extra copy and point of memory allocation failure.
Lets use the simple and approved way.
dev->needed_headroom being 8, all frames should have 8 bytes of
headroom, so the extra copy should be unlikely anyway.
This patch should improve performance for TCP xmits.
Reported-by: Ming Lei <ming.lei@canonical.com> Tested-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1) Don't ignore user initiated wireless regulatory settings on cards
with custom regulatory domains, from Arik Nemtsov.
2) Fix length check of bluetooth information responses, from Jaganath
Kanakkassery.
3) Fix misuse of PTR_ERR in btusb, from Adam Lee.
4) Handle rfkill properly while iwlwifi devices are offline, from
Emmanuel Grumbach.
5) Fix r815x devices DMA'ing to stack buffers, from Hayes Wang.
6) Kernel info leak in ATM packet scheduler, from Dan Carpenter.
7) 8139cp doesn't check for DMA mapping errors, from Neil Horman.
8) Fix bridge multicast code to not snoop when no querier exists,
otherwise mutlicast traffic is lost. From Linus Lüssing.
9) Avoid soft lockups in fib6_run_gc(), from Michal Kubecek.
10) Fix races in automatic address asignment on ipv6, which can result
in incorrect lifetime assignments. From Jiri Benc.
11) Cure build bustage when CONFIG_NET_LL_RX_POLL is not set and rename
it CONFIG_NET_RX_BUSY_POLL to eliminate the last reference to the
original naming of this feature. From Cong Wang.
12) Fix crash in TIPC when server socket creation fails, from Ying Xue.
13) macvlan_changelink() silently succeeds when it shouldn't, from
Michael S Tsirkin.
14) HTB packet scheduler can crash due to sign extension, fix from
Stephen Hemminger.
15) With the cable unplugged, r8169 prints out a message every 10
seconds, make it netif_dbg() instead of netif_warn(). From Peter
Wu.
16) Fix memory leak in rtm_to_ifaddr(), from Daniel Borkmann.
17) sis900 gets spurious TX queue timeouts due to mismanagement of link
carrier state, from Denis Kirjanov.
18) Validate somaxconn sysctl to make sure it fits inside of a u16.
From Roman Gushchin.
19) Fix MAC address filtering on qlcnic, from Shahed Shaikh.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (68 commits)
qlcnic: Fix for flash update failure on 83xx adapter
qlcnic: Fix link speed and duplex display for 83xx adapter
qlcnic: Fix link speed display for 82xx adapter
qlcnic: Fix external loopback test.
qlcnic: Removed adapter series name from warning messages.
qlcnic: Free up memory in error path.
qlcnic: Fix ingress MAC learning
qlcnic: Fix MAC address filter issue on 82xx adapter
net: ethernet: davinci_emac: drop IRQF_DISABLED
netlabel: use domain based selectors when address based selectors are not available
net: check net.core.somaxconn sysctl values
sis900: Fix the tx queue timeout issue
net: rtm_to_ifaddr: free ifa if ifa_cacheinfo processing fails
r8169: remove "PHY reset until link up" log spam
net: ethernet: cpsw: drop IRQF_DISABLED
htb: fix sign extension bug
macvlan: handle set_promiscuity failures
macvlan: better mode validation
tipc: fix oops when creating server socket fails
net: rename CONFIG_NET_LL_RX_POLL to CONFIG_NET_RX_BUSY_POLL
...
Rajesh Borundia [Sat, 3 Aug 2013 03:16:00 +0000 (23:16 -0400)]
qlcnic: Fix link speed and duplex display for 83xx adapter
o Set link speed and duplex to unknown when link is not up.
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Rajesh Borundia [Sat, 3 Aug 2013 03:15:59 +0000 (23:15 -0400)]
qlcnic: Fix link speed display for 82xx adapter
o Do not obtain link speed from register when adapter
link is down.
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Pratik Pujar [Sat, 3 Aug 2013 03:15:57 +0000 (23:15 -0400)]
qlcnic: Removed adapter series name from warning messages.
Signed-off-by: Pratik Pujar <pratik.pujar@qlogic.com> Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sat, 3 Aug 2013 18:15:03 +0000 (11:15 -0700)]
Merge branch 'for-3.11' of git://linux-nfs.org/~bfields/linux
Pull nfsd bugfixes from Bruce Fields:
"Most of this is due to a screwup on my part -- some gss-proxy crashes
got fixed before the merge window but somehow never made it out of a
temporary git repo on my laptop...."
* 'for-3.11' of git://linux-nfs.org/~bfields/linux:
svcrpc: set cr_gss_mech from gss-proxy as well as legacy upcall
svcrpc: fix kfree oops in gss-proxy code
svcrpc: fix gss-proxy xdr decoding oops
svcrpc: fix gss_rpc_upcall create error
NFSD/sunrpc: avoid deadlock on TCP connection due to memory pressure.
Linus Torvalds [Sat, 3 Aug 2013 18:12:09 +0000 (11:12 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull arm fixes fixes from Russell King:
"This fixes a couple of problems with commit 48be69a026b2 ("ARM: move
signal handlers into a vdso-like page"), one of which was originally
discovered via my testing originally, but the fix for it was never
actually committed.
The other shows up on noMMU builds, and such platforms are extremely
rare and as such are not part of my nightly testing"
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: fix nommu builds with 48be69a02 (ARM: move signal handlers into a vdso-like page)
ARM: fix a cockup in 48be69a02 (ARM: move signal handlers into a vdso-like page)
Stefan Tomanek [Sat, 3 Aug 2013 12:14:43 +0000 (14:14 +0200)]
fib_rules: fix suppressor names and default values
This change brings the suppressor attribute names into line; it also changes
the data types to provide a more consistent interface.
While -1 indicates that the suppressor is not enabled, values >= 0 for
suppress_prefixlen or suppress_ifgroup reject routing decisions violating the
constraint.
This changes the previously presented behaviour of suppress_prefixlen, where a
prefix length _less_ than the attribute value was rejected. After this change,
a prefix length less than *or* equal to the value is considered a violation of
the rule constraint.
It also changes the default values for default and newly added rules (disabling
any suppression for those).
Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Wang Sheng-Hui [Sat, 3 Aug 2013 08:54:50 +0000 (16:54 +0800)]
vlan: cleanup the usage of vlan_dev_priv(dev)
This patch cleanup 2 points for the usage of vlan_dev_priv(dev):
* In vlan_dev.c/vlan_dev_hard_header, we should use the var *vlan directly
after grabing the pointer at the beginning with
*vlan = vlan_dev_priv(dev);
when we need to access the fields of *vlan.
* In vlan.c/register_vlan_device, add the var *vlan pointer
struct vlan_dev_priv *vlan;
to cleanup the code to access the fields of vlan_dev_priv(new_dev).
Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Russell King [Sat, 3 Aug 2013 09:39:51 +0000 (10:39 +0100)]
ARM: fix nommu builds with 48be69a02 (ARM: move signal handlers into a vdso-like page)
Olof reports that noMMU builds error out with:
arch/arm/kernel/signal.c: In function 'setup_return':
arch/arm/kernel/signal.c:413:25: error: 'mm_context_t' has no member named 'sigpage'
This shows one of the evilnesses of IS_ENABLED(). Get rid of it here
and replace it with #ifdef's - and as no noMMU platform can make use
of sigpage, depend on CONIFG_MMU not CONFIG_ARM_MPU.
Reported-by: Olof Johansson <olof@lixom.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sat, 3 Aug 2013 09:30:05 +0000 (10:30 +0100)]
ARM: fix a cockup in 48be69a02 (ARM: move signal handlers into a vdso-like page)
Unfortunately, I never committed the fix to a nasty oops which can
occur as a result of that commit:
------------[ cut here ]------------
kernel BUG at /home/olof/work/batch/include/linux/mm.h:414!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 490 Comm: killall5 Not tainted 3.11.0-rc3-00288-gabe0308 #53
task: e90acac0 ti: e9be8000 task.ti: e9be8000
PC is at special_mapping_fault+0xa4/0xc4
LR is at __do_fault+0x68/0x48c
This doesn't show up unless you do quite a bit of testing; a simple
boot test does not do this, so all my nightly tests were passing fine.
The reason for this is that install_special_mapping() expects the
page array to stick around, and as this was only inserting one page
which was stored on the kernel stack, that's why this was blowing up.
Reported-by: Olof Johansson <olof@lixom.net> Tested-by: Olof Johansson <olof@lixom.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Paul Moore [Fri, 2 Aug 2013 18:45:08 +0000 (14:45 -0400)]
netlabel: use domain based selectors when address based selectors are not available
NetLabel has the ability to selectively assign network security labels
to outbound traffic based on either the LSM's "domain" (different for
each LSM), the network destination, or a combination of both. Depending
on the type of traffic, local or forwarded, and the type of traffic
selector, domain or address based, different hooks are used to label the
traffic; the goal being minimal overhead.
Unfortunately, there is a bug such that a system using NetLabel domain
based traffic selectors does not correctly label outbound local traffic
that is not assigned to a socket. The issue is that in these cases
the associated NetLabel hook only looks at the address based selectors
and not the domain based selectors. This patch corrects this by
checking both the domain and address based selectors so that the correct
labeling is applied, regardless of the configuration type.
In order to acomplish this fix, this patch also simplifies some of the
NetLabel domainhash structures to use a more common outbound traffic
mapping type: struct netlbl_dommap_def. This simplifies some of the code
in this patch and paves the way for further simplifications in the
future.
Signed-off-by: Paul Moore <pmoore@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Fri, 2 Aug 2013 18:28:23 +0000 (11:28 -0700)]
cnic, bnx2i: Fix bug on some bnx2x devices that don't support iSCSI
On some bnx2x devices, iSCSI is determined to be unsupported only after
firmware is downloaded. We need to check max_iscsi_conn again after
NETDEV_UP and block iSCSI init operations. Without this fix, iscsiadm
can hang as the firmware will not respond to the iSCSI init message.
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 2 Aug 2013 22:44:33 +0000 (15:44 -0700)]
Merge branch 'bond_neigh_parms'
Veaceslav Falico says:
====================
Recent patches revealed an old bug, which was there for quite awhile. It's
related to vlan on top of bonding and ndo_neigh_setup(). When vlan device
is initiated, it calls its real_dev->ndo_neigh_setup(), and in case of
bonding - it will modify neigh_parms->neigh_setup to point to
bond_neigh_init, while neigh_parms are of vlan's dev.
This way, when neigh_parms->neigh_setup() of vlan's dev is called, the
bonding function will be called, which expects the dev to be struct
bonding, but will receive a vlan dev.
It was hidden before because of bond->first_slave usage. Now, with
Nikolay's conversion to list/RCU, first_slave is gone and we hit a null
pointer dereference when working with lists/slave.
First patch moves ndo_neigh_setup() in neigh_parms_alloc() to the bottom,
so that the ->dev will be available to the caller. It doesn't really change
anything, however is needed for the second patch.
Second patch makes bond_neigh_setup() (bond->ndo_neigh_setup()) check if
the neigh_parms are really from a bonding dev, and only modify the
neigh_setup in this case.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Tomanek [Fri, 2 Aug 2013 15:19:56 +0000 (17:19 +0200)]
fib_rules: add route suppression based on ifgroup
This change adds the ability to suppress a routing decision based upon the
interface group the selected interface belongs to. This allows it to
exclude specific devices from a routing decision.
Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Roman Gushchin [Fri, 2 Aug 2013 14:36:40 +0000 (18:36 +0400)]
net: check net.core.somaxconn sysctl values
It's possible to assign an invalid value to the net.core.somaxconn
sysctl variable, because there is no checks at all.
The sk_max_ack_backlog field of the sock structure is defined as
unsigned short. Therefore, the backlog argument in inet_listen()
shouldn't exceed USHRT_MAX. The backlog argument in the listen() syscall
is truncated to the somaxconn value. So, the somaxconn value shouldn't
exceed 65535 (USHRT_MAX).
Also, negative values of somaxconn are meaningless.
Signed-off-by: Roman Gushchin <klamm@yandex-team.ru> Reported-by: Changli Gao <xiaosuo@gmail.com> Suggested-by: Eric Dumazet <edumazet@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
icmpv6_filter: allow ICMPv6 messages with bodies < 4 bytes
By using sizeof(_hdr), net/ipv6/raw.c:icmpv6_filter implicitly assumes
that any valid ICMPv6 message is at least eight bytes long, i.e., that
the message body is at least four bytes.
The DIS message of RPL (RFC 6550 section 6.2, from the 6LoWPAN world),
has a minimum length of only six bytes, and is thus blocked by
icmpv6_filter.
RFC 4443 seems to allow even a zero-sized body, making the minimum
allowable message size four bytes.
Signed-off-by: Werner Almesberger <werner@almesberger.net> Signed-off-by: David S. Miller <davem@davemloft.net>
timer routine checks the link status and if it's up calls
netif_carrier_on() allowing upper layer to start the tx queue
even if the auto-negotiation process is not finished.
Also remove ugly auto-negotiation check from the sis900_start_xmit()
CC: Duan Fugang <B38611@freescale.com> CC: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Phil Sutter [Fri, 2 Aug 2013 09:37:40 +0000 (11:37 +0200)]
af_packet: fix for sending VLAN frames via packet_mmap
Since tpacket_fill_skb() parses the protocol field in ethernet frames'
headers, it's easy to see if any passed frame is a VLAN one and account
for the extended size.
But as the real protocol does not turn up before tpacket_fill_skb()
runs which in turn also checks the frame length, move the max frame
length calculation into the function.
Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
Phil Sutter [Fri, 2 Aug 2013 09:37:39 +0000 (11:37 +0200)]
af_packet: when sending ethernet frames, parse header for skb->protocol
This may be necessary when the SKB is passed to other layers on the go,
which check the protocol field on their own. An example is a VLAN packet
sent out using AF_PACKET on a bridge interface. The bridging code checks
the SKB size, accounting for any VLAN header only if the protocol field
is set accordingly.
Note that eth_type_trans() sets skb->dev to the passed argument, so this
can be skipped in packet_snd() for ethernet frames, as well.
Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 2 Aug 2013 21:58:30 +0000 (14:58 -0700)]
Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband/rdma fixes from Roland Dreier:
- Fixes for the newly merged mlx5 hardware driver
- Stack info leak fixes from Dan Carpenter
- Fixes for pkey table handling with SR-IOV
- A few other small things
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IPoIB: Fix pkey change flow for virtualization environments
IPoIB: Make sure child devices use valid/proper pkeys
IB/core: Create QP1 using the pkey index which contains the default pkey
mlx5_core: Variable may be used uninitialized
mlx5_core: Implement new initialization sequence
mlx5_core: Fix use after free in mlx5_cmd_comp_handler()
IB/mlx5: Fix stack info leak in mlx5_ib_alloc_ucontext()
IB/mlx5: Fix error return code in init_one()
IB/mlx4: Use default pkey when creating tunnel QPs
RDMA/cma: Only call cma_save_ib_info() for CM REQs
RDMA/cma: Fix accessing invalid private data for UD
RDMA/cma: Fix gcc warning
Revert "RDMA/nes: Fix compilation error when nes_debug is enabled"
IB/qib: Add err_decode() call for ring dump
RDMA/cxgb3: Fix stack info leak in iwch_create_cq()
RDMA/nes: Fix info leaks in nes_create_qp() and nes_create_cq()
RDMA/ocrdma: Fix several stack info leaks
RDMA/cxgb4: Fix stack info leak in c4iw_create_qp()
RDMA/ocrdma: Remove unused include
Linus Torvalds [Fri, 2 Aug 2013 21:57:24 +0000 (14:57 -0700)]
Merge tag 'gpio-for-v3.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Yet another GPIO pull request, fixing the fix from the last one. It
turns out that fixing the boot path for device tree boots on OMAP
breaks out antique systems (such as OMAP1) and we need to find a
better way. So we're reverting that "fix" for the moment and thinking
about something better.
Also fixing a build issue on the MSM driver"
* tag 'gpio-for-v3.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio_msm: Fix build error due to missing err.h
Revert "gpio/omap: don't create an IRQ mapping for every GPIO on DT"
Revert "gpio/omap: auto request GPIO as input if used as IRQ via DT"
Revert "gpio/omap: fix build error when OF_GPIO is not defined."
Daniel Borkmann [Fri, 2 Aug 2013 09:32:43 +0000 (11:32 +0200)]
net: rtm_to_ifaddr: free ifa if ifa_cacheinfo processing fails
Commit 5c766d642 ("ipv4: introduce address lifetime") leaves the ifa
resource that was allocated via inet_alloc_ifa() unfreed when returning
the function with -EINVAL. Thus, free it first via inet_free_ifa().
Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Reviewed-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
Lekensteyn [Fri, 2 Aug 2013 08:36:55 +0000 (10:36 +0200)]
r8169: remove "PHY reset until link up" log spam
This message was added in commit a7154cb8 (June 2004, [PATCH] r8169:
link handling and phy reset rework) and is printed every ten seconds
when no cable is connected and runtime power management is disabled.
(Before that commit, "Reset RTL8169s PHY" would be printed instead.)
Signed-off-by: Peter Wu <lekensteyn@gmail.com> Acked-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
When userspace passes a large priority value
the assignment of the unsigned value hopt->prio
to signed int cl->prio causes cl->prio to become negative and the
comparison is with TC_HTB_NUMPRIO is always false.
The result is that HTB crashes by referencing outside
the array when processing packets. With this patch the large value
wraps around like other values outside the normal range.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 2 Aug 2013 21:39:49 +0000 (14:39 -0700)]
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Ben Herrenschmidt:
"Here is not quite a handful of powerpc fixes for rc3.
The windfarm fix is a regression fix (though not a new one), the PMU
interrupt rename is not a fix per-se but has been submitted a long
time ago and I kept forgetting to put it in (it puts us back in sync
with x86), the other perf bit is just about putting an API/ABI bit
definition in the right place for userspace to consume, and finally,
we have a fix for the VPHN (Virtual Partition Home Node) feature
(notification that the hypervisor is moving nodes around) which could
cause lockups so we may as well fix it now"
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/windfarm: Fix noisy slots-fan on Xserve (rm31)
powerpc: VPHN topology change updates all siblings
powerpc/perf: Export PERF_EVENT_CONFIG_EBB_SHIFT to userspace
powerpc: Rename PMU interrupts from CNT to PMI
projects / linux-beck.git / log