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2013-09-05tuntap: orphan frags before trying to set tx timestampJason Wang1-3/+5
sock_tx_timestamp() will clear all zerocopy flags of skb which may lead the frags never to be orphaned. This will break guest to guest traffic when zerocopy is enabled. Fix this by orphaning the frags before trying to set tx time stamp. The issue were introduced by commit eda297729171fe16bf34fe5b0419dfb69060f623 (tun: Support software transmit time stamping). Cc: Richard Cochran <richardcochran@gmail.com> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05tuntap: purge socket error queue on detachJason Wang1-3/+9
Commit eda297729171fe16bf34fe5b0419dfb69060f623 (tun: Support software transmit time stamping) will queue skbs into error queue when tx stamping is enabled. But it forgets to purge the error queue during detach. This patch fixes this. Cc: Richard Cochran <richardcochran@gmail.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05qlcnic: use standard NAPI weightsMichal Schmidt2-19/+12
Since commit 82dc3c63 ("net: introduce NAPI_POLL_WEIGHT") netif_napi_add() produces an error message if a NAPI poll weight greater than 64 is requested. qlcnic requests the weight as large as 256 for some of its rings, and smaller values for other rings. For instance in qlcnic_82xx_napi_add() I think the intention was to give the tx+rx ring a bigger weight than to rx-only rings, but it's actually doing the opposite. So I'm assuming the weights do not really matter much. Just use the standard NAPI weights for all rings. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05bnx2x: VF RSS support - VF sideAriel Elior6-60/+145
In this patch capabilities are added to the Vf driver to request multiple queues over the VF PF channel, and the logic for requesting rss configuration for said queues. Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilong Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05bnx2x: VF RSS support - PF sideAriel Elior10-144/+513
This patch adds support for Receive Side Scaling for queues of Virtual Functions on the PF side. This includes support for the requests for multiple queues from VF drivers, configuration of the HW for multiple queues per VF, and support for rss configuration of said queues. Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05vxlan: Notify drivers for listening UDP port changesJoseph Gasparakis1-1/+67
This patch adds two more ndo ops: ndo_add_rx_vxlan_port() and ndo_del_rx_vxlan_port(). Drivers can get notifications through the above functions about changes of the UDP listening port of VXLAN. Also, when physical ports come up, now they can call vxlan_get_rx_port() in order to obtain the port number(s) of the existing VXLAN interface in case they already up before them. This information about the listening UDP port would be used for VXLAN related offloads. A big thank you to John Fastabend (john.r.fastabend@intel.com) for his input and his suggestions on this patch set. CC: John Fastabend <john.r.fastabend@intel.com> CC: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Joseph Gasparakis <joseph.gasparakis@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05net: usbnet: update addr_assign_type if appropriateBjørn Mork1-0/+4
This module generates a common default address on init, using eth_random_addr. Set addr_assign_type to let userspace know the address is random unless it was overridden by the minidriver. Signed-off-by: Bjørn Mork <bjorn@mork.no> Acked-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05driver/net: enic: update enic maintainers and drivergovindarajulu.v1-1/+1
Signed-off-by: Govindarajulu Varadarajan <govindarajulu90@gmail.com> Signed-off-by: Sujith Sankar <ssujith@cisco.com> Signed-off-by: Nishank Trivedi <nistrive@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05driver/net: enic: Exposing symbols for Cisco's low latency drivergovindarajulu.v2-0/+11
This patch exposes symbols for usnic low latency driver that can be used to register and unregister vNics as well to traverse the resources on vNics. Signed-off-by: Upinder Malhi <umalhi@cisco.com> Signed-off-by: Nishank Trivedi <nistrive@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05driver/net: enic: Try DMA 64 first, then failover to DMAgovindarajulu.v1-4/+4
In servers with more than 1.1 TB of RAM, the existing 40/32 bit DMA could cause failure as the DMA-able address could go outside the range addressable using 40/32 bits. The following patch first tried 64 bit DMA if possible, failover to 32 bit. Signed-off-by: Sujith Sankar <ssujith@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: Govindarajulu Varadarajan <govindarajulu90@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05driver/net: enic: record q_number and rss_hash for skbgovindarajulu.v1-0/+11
The following patch sets the skb->rxhash and skb->q_number. This is used by RPS and RFS. Kernel can make use of hw provided hash instead of calculating the hash. Signed-off-by: Govindarajulu Varadarajan <govindarajulu90@gmail.com> Signed-off-by: Nishank Trivedi <nistrive@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05driver/net: enic: Add multi tx support for enicgovindarajulu.v2-13/+25
The following patch adds multi tx support for enic. Signed-off-by: Nishank Trivedi <nistrive@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: Govindarajulu Varadarajan <govindarajulu90@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04vxlan: Optimize vxlan rcvPravin B Shelar1-1/+6
vxlan-udp-recv function lookup vxlan_sock struct on every packet recv by using udp-port number. we can use sk->sk_user_data to store vxlan_sock and avoid lookup. I have open coded rcu-api to store and read vxlan_sock from sk_user_data to avoid sparse warning as sk_user_data is not __rcu pointer. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04atm: he: print MAC via %pMAndy Shevchenko1-9/+2
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04atm: nicstar: re-use native mac_pton() helperAndy Shevchenko1-25/+1
There is a nice helper to parse MAC. Let's use it and remove custom implementation. Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04driver:stmmac: Adjust time stamp increase for 0.465 ns accurate only when ↵Sonic Zhang1-2/+2
Time stamp binary rollover is set. The synopsys spec says When TSCRLSSR is cleard, the rollover value of sub-second register is 0x7FFFFFFF(0.465 ns per clock). Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04drivers:net: delete premature free_irqJulia Lawall1-9/+2
Free_irq is not needed if there has been no request_irq. Free_irq is removed from both the probe and remove functions. The correct request_irq and free_irq are found in the open and close functions. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e; @@ *e = platform_get_irq(...); ... when != request_irq(e,...) *free_irq(e,...) // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04sfc: check for allocation failureDan Carpenter1-0/+2
It upsets static analyzers when we don't check for allocation failure. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04igb: Update version numberAkeem G Abodunrin1-1/+1
This patch updates igb driver version to 5.0.5 Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04igb: Implementation to report advertised/supported link on i354 devicesAkeem G Abodunrin1-11/+15
This patch changes the way we report supported/advertised link for i354 devices, especially for 2.5 GB. Instead of reporting 2.5 GB for all i354 devices erroneously, check first, if it is 2.5 GB capable. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04igb: Get speed and duplex for 1G non_copper devicesAkeem G Abodunrin1-1/+26
This patch changes how we get speed/duplex for non_copper devices; it now uses pcs register to get current speed and duplex instead of using generic status register that we use to detect speed/duplex for copper devices. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04igb: Support to get 2_5G link status for appropriate media typeAkeem G Abodunrin2-18/+18
Since i354 2.5Gb devices are not Copper media type but SerDes, so this patch changes the way we detect speed/duplex link info for this device. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04igb: No PHPM support in i354 devicesAkeem G Abodunrin1-2/+9
PHY Power Management does not exist for i354 device. So, there is no need to read and write this register or clear go link Disconnect bit, which could cause a lot of issues. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04igb: M88E1543 PHY downshift implementationAkeem G Abodunrin1-9/+20
This patch implements downshift mechanism for M88E1543 PHY, so that downshift is disabled first during link setup process, and later enabled if we are master and downshift link is negotiated. Also cleaned up return code implementation. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04igb: New PHY_ID for i354 deviceAkeem G Abodunrin3-14/+14
This patch changes PHY_ID for i354 device, now using M88E1543 instead of M88E1545. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04igb: Implementation of 1-sec delay for i210 devicesAkeem G Abodunrin2-3/+32
This patch adds 1 sec delay mechanism to i210 device family, in order to avoid erroneous link issue with the link partner. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04igb: Don't look for a PBA in the iNVM when flashlessTodd Fujinaka1-1/+8
When a part is flashless, do not look for a PBA in the iNVM. Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-04qlcnic: remove a stray semicolonDan Carpenter1-1/+1
Just remove a small semicolon. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04qlcnic: Fix sparse warning.Sucheta Chakraborty1-1/+1
This patch fixes warning "warning: symbol 'qlcnic_set_dcb_ops' was not declared. Should it be static?" Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04caif: add a sanity check to the tty nameDan Carpenter1-1/+3
"tty->name" and "name" are a 64 character buffers. My static checker complains because we add the "cf" on the front so it look like we are copying a 66 character string into a 64 character buffer. Also if the name is larger than IFNAMSIZ (16) it triggers a BUG_ON() inside the call to alloc_netdev(). This is all under CAP_SYS_ADMIN so it's not a security fix, it just adds a little robustness. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04ibmveth: Fix little endian issuesAnton Blanchard2-5/+18
The hypervisor is big endian, so little endian kernel builds need to byteswap. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04net: netx-eth: remove unnecessary castingJingoo Han1-1/+1
Casting from 'void *' is unnecessary, because casting from 'void *' to any pointer type is automatic. Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04cnic: Update version to 2.5.18.Michael Chan1-2/+2
Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04cnic: Eliminate local copy of pfid.Michael Chan2-18/+12
Use bp->pfid from bnx2x instead to avoid duplication. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04cnic: Eliminate CNIC_PORT macro and port_mode in local struct.Michael Chan2-9/+6
Use BP_PORT and chip_port_mode directly from bnx2x.h to avoid duplication. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04cnic: Redefine BNX2X_HW_CID using existing bnx2x macrosMichael Chan2-12/+18
to avoid duplication of the same logic. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04cnic: Use CHIP_NUM macros from bnx2x.hMichael Chan2-67/+29
This eliminates duplication and ensures that all bnx2x chips will be supported. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04tunnels: harmonize cleanup done on skb on xmit pathNicolas Dichtel1-2/+4
The goal of this patch is to harmonize cleanup done on a skbuff on xmit path. Before this patch, behaviors were different depending of the tunnel type. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04vxlan: remove net arg from vxlan[6]_xmit_skb()Nicolas Dichtel1-4/+4
This argument is not used, let's remove it. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04iptunnels: remove net arg from iptunnel_xmit()Nicolas Dichtel1-2/+1
This argument is not used, let's remove it. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04bonding: drop read_lock in bond_compute_featuresnikolay@redhat.com1-7/+3
bond_compute_features is always called with RTNL held, so we can safely drop the read bond->lock. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04bonding: drop read_lock in bond_fix_featuresnikolay@redhat.com1-7/+3
We're protected by RTNL so nothing can happen and we can safely drop the read bond->lock. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04bonding: simplify bond_3ad_update_lacp_rate and use RTNL for syncnikolay@redhat.com2-8/+7
We can drop the use of bond->lock for mutual exclusion in bond_3ad_update_lacp_rate and use RTNL in the sysfs store function instead. This way we'll prevent races with mode change and interface up/down as well as simplify update_lacp_rate by removing the check for port->slave because it'll always be initialized (done while enslaving with RTNL). This change will also help in the future removal of reader bond->lock from bond_enslave. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04bonding: trivial: remove outdated comment and bracesnikolay@redhat.com1-5/+1
We don't have to release all slaves when closing the bond dev, so remove the outdated comment and the braces around the left single statement. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-04bonding: simplify and fix peer notificationnikolay@redhat.com1-15/+7
This patch aims to remove a use of the bond->lock for mutual exclusion which will later allow easier migration to RCU of the users of this functionality. We use RTNL as a synchronizing mechanism since it's always held when send_peer_notif is set, and when it is decremented from the notifier function. We can also drop some locking, and fix the leakage of the send_peer_notif counter. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03vhost_net: correctly limit the max pending buffersJason Wang1-11/+7
As Michael point out, We used to limit the max pending DMAs to get better cache utilization. But it was not done correctly since it was one done when there's no new buffers submitted from guest. Guest can easily exceeds the limitation by keeping sending packets. So this patch moves the check into main loop. Tests shows about 5%-10% improvement on per cpu throughput for guest tx. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03vhost_net: poll vhost queue after marking DMA is doneJason Wang1-4/+5
We used to poll vhost queue before making DMA is done, this is racy if vhost thread were waked up before marking DMA is done which can result the signal to be missed. Fix this by always polling the vhost thread before DMA is done. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03vhost_net: determine whether or not to use zerocopy at one timeJason Wang1-27/+20
Currently, even if the packet length is smaller than VHOST_GOODCOPY_LEN, if upend_idx != done_idx we still set zcopy_used to true and rollback this choice later. This could be avoided by determining zerocopy once by checking all conditions at one time before. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03vhost: switch to use vhost_add_used_n()Jason Wang1-42/+12
Let vhost_add_used() to use vhost_add_used_n() to reduce the code duplication. To avoid the overhead brought by __copy_to_user(). We will use put_user() when one used need to be added. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03vhost_net: use vhost_add_used_and_signal_n() in vhost_zerocopy_signal_used()Jason Wang1-5/+8
We tend to batch the used adding and signaling in vhost_zerocopy_callback() which may result more than 100 used buffers to be updated in vhost_zerocopy_signal_used() in some cases. So switch to use vhost_add_used_and_signal_n() to avoid multiple calls to vhost_add_used_and_signal(). Which means much less times of used index updating and memory barriers. 2% performance improvement were seen on netperf TCP_RR test. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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