1. 24 Apr, 2016 12 commits
  2. 23 Apr, 2016 1 commit
  3. 21 Apr, 2016 27 commits
    • Linus Torvalds's avatar
      Merge tag 'rtc-4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux · 5f44abd0
      Linus Torvalds authored
      Pull RTC fixes from Alexandre Belloni:
       "A few fixes for the RTC subsystem.  The documentation fix already
        missed 4.5 so I think it is worth taking it now:
      
        A documentation fix for s3c and two fixes for the ds1307"
      
      * tag 'rtc-4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
        rtc: ds1307: Use irq when available for wakeup-source device
        rtc: ds1307: ds3231 temperature s16 overflow
        rtc: s3c: Document in binding that only s3c6410 needs a src clk
      5f44abd0
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · f78fe081
      Linus Torvalds authored
      Pull power management fixes from Rafael Wysocki:
       "Two fixes for issues introduced recently, one for an intel_pstate
        driver problem uncovered by the recent switch over from using timers
        and the other one for a potential cpufreq core problem related to
        system suspend/resume.
      
        Specifics:
      
         - Fix an intel_pstate driver problem causing CPUs to get stuck in the
           highest P-state when completely idle uncovered by the recent switch
           over from using timers (Rafael Wysocki).
      
         - Avoid attempts to get the current CPU frequency when all devices
           (like I2C controllers that may be nedded for that purpose) have
           been suspended during system suspend/resume (Rafael Wysocki)"
      
      * tag 'pm+acpi-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpufreq: Abort cpufreq_update_current_freq() for cpufreq_suspended set
        intel_pstate: Avoid getting stuck in high P-states when idle
      f78fe081
    • Nishanth Menon's avatar
      rtc: ds1307: Use irq when available for wakeup-source device · 38a7a73e
      Nishanth Menon authored
      With commit 8bc2a407 ("rtc: ds1307: add support for the
      DT property 'wakeup-source'") we lost the ability for rtc irq
      functionality for devices that are actually hooked on a real IRQ
      line and have capability to wakeup as well. This is not an expected
      behavior. So, instead of just not requesting IRQ, skip the IRQ
      requirement only if interrupts are not defined for the device.
      
      Fixes: 8bc2a407 ("rtc: ds1307: add support for the DT property 'wakeup-source'")
      Reported-by: default avatarTony Lindgren <tony@atomide.com>
      Cc: Michael Lange <linuxstuff@milaw.biz>
      Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
      Signed-off-by: default avatarNishanth Menon <nm@ti.com>
      Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
      38a7a73e
    • Zhuang Yuyao's avatar
      rtc: ds1307: ds3231 temperature s16 overflow · 9a3dce62
      Zhuang Yuyao authored
      while retrieving temperature from ds3231, the result may be overflow
      since s16 is too small for a multiplication with 250.
      
      ie. if temp_buf[0] == 0x2d, the result (s16 temp) will be negative.
      Signed-off-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
      Tested-by: default avatarMichael Tatarinov <kukabu@gmail.com>
      Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
      9a3dce62
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · c5edde3a
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Fix memory leak in iwlwifi, from Matti Gottlieb.
      
       2) Add missing registration of netfilter arp_tables into initial
          namespace, from Florian Westphal.
      
       3) Fix potential NULL deref in DecNET routing code.
      
       4) Restrict NETLINK_URELEASE to truly bound sockets only, from Dmitry
          Ivanov.
      
       5) Fix dst ref counting in VRF, from David Ahern.
      
       6) Fix TSO segmenting limits in i40e driver, from Alexander Duyck.
      
       7) Fix heap leak in PACKET_DIAG_MCLIST, from Mathias Krause.
      
       8) Ravalidate IPV6 datagram socket cached routes properly, particularly
          with UDP, from Martin KaFai Lau.
      
       9) Fix endian bug in RDS dp_ack_seq handling, from Qing Huang.
      
      10) Fix stats typing in bcmgenet driver, from Eric Dumazet.
      
      11) Openvswitch needs to orphan SKBs before ipv6 fragmentation handing,
          from Joe Stringer.
      
      12) SPI device reference leak in spi_ks8895 PHY driver, from Mark Brown.
      
      13) atl2 doesn't actually support scatter-gather, so don't advertise the
          feature.  From Ben Hucthings.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (72 commits)
        openvswitch: use flow protocol when recalculating ipv6 checksums
        Driver: Vmxnet3: set CHECKSUM_UNNECESSARY for IPv6 packets
        atl2: Disable unimplemented scatter/gather feature
        net/mlx4_en: Split SW RX dropped counter per RX ring
        net/mlx4_core: Don't allow to VF change global pause settings
        net/mlx4_core: Avoid repeated calls to pci enable/disable
        net/mlx4_core: Implement pci_resume callback
        net: phy: spi_ks8895: Don't leak references to SPI devices
        net: ethernet: davinci_emac: Fix platform_data overwrite
        net: ethernet: davinci_emac: Fix Unbalanced pm_runtime_enable
        qede: Fix single MTU sized packet from firmware GRO flow
        qede: Fix setting Skb network header
        qede: Fix various memory allocation error flows for fastpath
        tcp: Merge tx_flags and tskey in tcp_shifted_skb
        tcp: Merge tx_flags and tskey in tcp_collapse_retrans
        drivers: net: cpsw: fix wrong regs access in cpsw_ndo_open
        tcp: Fix SOF_TIMESTAMPING_TX_ACK when handling dup acks
        openvswitch: Orphan skbs before IPv6 defrag
        Revert "Prevent NUll pointer dereference with two PHYs on cpsw"
        VSOCK: Only check error on skb_recv_datagram when skb is NULL
        ...
      c5edde3a
    • David S. Miller's avatar
      Merge branch 'geneve-vxlan-deps' · 22d37b6b
      David S. Miller authored
      Hannes Frederic Sowa says:
      
      ====================
      net: network drivers should not depend on geneve/vxlan
      
      This patchset removes the dependency of network drivers on vxlan or
      geneve, so those don't get autoloaded when the nic driver is loaded.
      
      Also audited the code such that vxlan_get_rx_port and geneve_get_rx_port
      are not called without rtnl lock.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      22d37b6b
    • Hannes Frederic Sowa's avatar
      geneve: break dependency with netdev drivers · 681e683f
      Hannes Frederic Sowa authored
      Equivalent to "vxlan: break dependency with netdev drivers", don't
      autoload geneve module in case the driver is loaded. Instead make the
      coupling weaker by using netdevice notifiers as proxy.
      
      Cc: Jesse Gross <jesse@kernel.org>
      Signed-off-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      681e683f
    • Hannes Frederic Sowa's avatar
      vxlan: break dependency with netdev drivers · b7aade15
      Hannes Frederic Sowa authored
      Currently all drivers depend and autoload the vxlan module because how
      vxlan_get_rx_port is linked into them. Remove this dependency:
      
      By using a new event type in the netdevice notifier call chain we proxy
      the request from the drivers to flush and resetup the vxlan ports not
      directly via function call but by the already existing netdevice
      notifier call chain.
      
      I added a separate new event type, NETDEV_OFFLOAD_PUSH_VXLAN, to do so.
      We don't need to save those ids, as the event type field is an unsigned
      long and using specialized event types for this purpose seemed to be a
      more elegant way. This also comes in beneficial if in future we want to
      add offloading knobs for vxlan.
      
      Cc: Jesse Gross <jesse@kernel.org>
      Signed-off-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b7aade15
    • Hannes Frederic Sowa's avatar
      qlcnic: protect qlicnic_attach_func with rtnl_lock · 50d65d78
      Hannes Frederic Sowa authored
      qlcnic_attach_func requires rtnl_lock to be held.
      
      Cc: Dept-GELinuxNICDev@qlogic.com
      Signed-off-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      50d65d78
    • Hannes Frederic Sowa's avatar
      ixgbe: protect vxlan_get_rx_port in ixgbe_service_task with rtnl_lock · b1f99a78
      Hannes Frederic Sowa authored
      vxlan_get_rx_port requires rtnl_lock to be held.
      
      Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
      Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
      Cc: Shannon Nelson <shannon.nelson@intel.com>
      Cc: Carolyn Wyborny <carolyn.wyborny@intel.com>
      Cc: Don Skidmore <donald.c.skidmore@intel.com>
      Cc: Bruce Allan <bruce.w.allan@intel.com>
      Cc: John Ronciak <john.ronciak@intel.com>
      Cc: Mitch Williams <mitch.a.williams@intel.com>
      Signed-off-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b1f99a78
    • Hannes Frederic Sowa's avatar
      mlx4: protect mlx4_en_start_port in mlx4_en_restart with rtnl_lock · 0c5c3252
      Hannes Frederic Sowa authored
      mlx4_en_start_port requires rtnl_lock to be held.
      
      Cc: Eugenia Emantayev <eugenia@mellanox.com>
      Cc: Yishai Hadas <yishaih@mellanox.com>
      Signed-off-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      0c5c3252
    • Hannes Frederic Sowa's avatar
      fm10k: protect fm10k_open in fm10k_io_resume with rtnl_lock · 41419b93
      Hannes Frederic Sowa authored
      fm10k_open requires rtnl_lock to be held.
      
      Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
      Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
      Cc: Shannon Nelson <shannon.nelson@intel.com>
      Cc: Carolyn Wyborny <carolyn.wyborny@intel.com>
      Cc: Don Skidmore <donald.c.skidmore@intel.com>
      Cc: Bruce Allan <bruce.w.allan@intel.com>
      Cc: John Ronciak <john.ronciak@intel.com>
      Cc: Mitch Williams <mitch.a.williams@intel.com>
      Signed-off-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      41419b93
    • Hannes Frederic Sowa's avatar
      benet: be_resume needs to protect be_open with rtnl_lock · 08d9910c
      Hannes Frederic Sowa authored
      be_open calls down to functions which expects rtnl lock to be held.
      
      Cc: Sathya Perla <sathya.perla@broadcom.com>
      Cc: Ajit Khaparde <ajit.khaparde@broadcom.com>
      Cc: Padmanabh Ratnakar <padmanabh.ratnakar@broadcom.com>
      Cc: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
      Cc: Somnath Kotur <somnath.kotur@broadcom.com>
      Signed-off-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      08d9910c
    • Simon Horman's avatar
      openvswitch: use flow protocol when recalculating ipv6 checksums · b4f70527
      Simon Horman authored
      When using masked actions the ipv6_proto field of an action
      to set IPv6 fields may be zero rather than the prevailing protocol
      which will result in skipping checksum recalculation.
      
      This patch resolves the problem by relying on the protocol
      in the flow key rather than that in the set field action.
      
      Fixes: 83d2b9ba ("net: openvswitch: Support masked set actions.")
      Cc: Jarno Rajahalme <jrajahalme@nicira.com>
      Signed-off-by: default avatarSimon Horman <simon.horman@netronome.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b4f70527
    • Shrikrishna Khare's avatar
      Driver: Vmxnet3: set CHECKSUM_UNNECESSARY for IPv6 packets · f0d43780
      Shrikrishna Khare authored
      For IPv6, if the device indicates that the checksum is correct, set
      CHECKSUM_UNNECESSARY.
      Reported-by: default avatarSubbarao Narahari <snarahari@vmware.com>
      Signed-off-by: default avatarShrikrishna Khare <skhare@vmware.com>
      Signed-off-by: default avatarJin Heo <heoj@vmware.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f0d43780
    • Ben Hutchings's avatar
      atl2: Disable unimplemented scatter/gather feature · f43bfaed
      Ben Hutchings authored
      atl2 includes NETIF_F_SG in hw_features even though it has no support
      for non-linear skbs.  This bug was originally harmless since the
      driver does not claim to implement checksum offload and that used to
      be a requirement for SG.
      
      Now that SG and checksum offload are independent features, if you
      explicitly enable SG *and* use one of the rare protocols that can use
      SG without checkusm offload, this potentially leaks sensitive
      information (before you notice that it just isn't working).  Therefore
      this obscure bug has been designated CVE-2016-2117.
      Reported-by: default avatarJustin Yackoski <jyackoski@crypto-nite.com>
      Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      Fixes: ec5f0615 ("net: Kill link between CSUM and SG features.")
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f43bfaed
    • Alexander Duyck's avatar
      net: Add support for IP ID mangling TSO in cases that require encapsulation · 7f348a60
      Alexander Duyck authored
      This patch adds support for NETIF_F_TSO_MANGLEID if a given tunnel supports
      NETIF_F_TSO.  This way if needed a device can then later enable the TSO
      with IP ID mangling and the tunnels on top of that device can then also
      make use of the IP ID mangling as well.
      Signed-off-by: default avatarAlexander Duyck <aduyck@mirantis.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7f348a60
    • David S. Miller's avatar
      Merge branch 'mlx5-next' · 1df845be
      David S. Miller authored
      Saeed Mahameed says:
      
      ====================
      Mellanox 100G mlx5 driver receive path optimizations
      
      Changes from V2:
      	- Rebased to 46e7b8d8 ("net: dsa: kill circular reference with slave priv")
      	- Updated: ("net/mlx5e: Support RX multi-packet WQE (Striding RQ)")
      		* Per Eric Dumazet comment we changed the driver memory handling scheme to
      		work with order-0 pages rather than order-5 via split_page().
      		* This means that now a mlx5e rx skb can hold one or (more in case of HW LRO)
                      skb frag each pointing to a 4K order-0 page rather than one frag with order-5 page.
      	- Updated: ("net/mlx5e: Add fragmented memory support for RX multi packet WQE")
      		* Code refactoring and code reuse due the split_page() mechanism,
      		  now the MPWQE and fragmented MPWQE handling almost look the same,
      		  and share most of the code.
      	- In some cases we see 2%-3% packet rate degradation in comparison to the order-5 pages approach,
      	  due to split_page() cpu consumption, but still we do see 3%-10% improvement in comparison to the
                current linear SKB approach.
      	- We do believe that now the driver memory scheme is significantly less vulnerable
      	  to the memory DOS attack Eric pointed at.
      
      Changes from V1:
      	- Rebased to efde611b ("Merge branch 'nfp-next'")
      	- Dropped: ("net/mlx5: Refactor mlx5_core_mr to mkey")
                      Already merged into 4.6 from rdma tree.
      	- Dropped: ("net/mlx5_core: Add ConnectX-5 to list of supported devices")
                      Will be pushed to net as we want it in 4.6 release.
      	- Dropped: ("net/mlx5e: Change RX moderation period to be based on CQE")
                      Will be pushed in a later series with full software based adaptive moderation.
      	- Added: ("net/mlx5e: Delay skb->data access")
      		Small trivial optimization.
      	- Updated: ("net/mlx5e: Support RX multi-packet WQE (Striding RQ)")
      	 	Changed Striding RQ defaults to:
      			> 	NUM WQEs = 16
      			> 	Strides Per WQE = 1024
      			> 	Stride Size = 128
      	- Updated: ("net/mlx5e: Use napi_alloc_skb for RX SKB allocations")
      		Consider the IP packet alignment already done in napi_alloc_skb.
      
      Changes from V0:
      	- Fixed a typo in commit message reported by Sergei
      	- Align SKB fragments truesize to stride size
      	- Use skb_add_rx_frag and remove the use of SKB_TRUESIZE
      	- Fix: # MTTs alignment on Power PC
      	- Fix: Free original (unaligned) pointer of MTT array
      	- Use dev_alloc_pages and dev_alloc_page
      	- Extend the stats.buff_alloc_err counter
      	- Reform the copying of packet header into skb linear data
      	- Add compiler hints for conditional statements
      	- Prefetch skd->data prior to copying packet header into it
      	- Rework: mlx5e_complete_rx_fragmented_mpwqe
      	- Handle SKB fragments before linear data
      	- Dropped ("net/mlx5e: Prefetch next RX CQE") for now
      	- Added a small patch that Adds ConnectX-5 devices to the list of supported devices
      	- Rebased to 1cdba550 ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next")
      
      This series includes Some RX modifications and optimizations for
      the mlx5 Ethernet driver.
      
      From Rana, we have one patch that adds the support for Connectx-4
      queue counters.
      
      From Tariq, several patches that are centralized around improving
      RX path message rate, CPU and Memory utilization, in each patch
      commit message you will find the performance improvements numbers
      related to that specific patch.
      
      In the 2nd patch we used a queue counter to report "out of buffer"
      dropped packet count, "Dropped packets due to lack of software resources"
      
      3rd patch modifies the driver's to RSS default value to be spread along the
      close NUMA node cores only for better out of the box experience.
      
      In the 4th and 5th patches we utilized the use of RX multi-packet WQE
      (Striding RQ) for better memory utilization especially in case of hardware
      LRO is enabled and for better message rate for small packets.
      
      In the 6th and 7th patches we added a fallback mechanism to use fragmented
      memory when allocating large WQE strides fails, using UMR
      (User Memory Registration) and ICO (Internal Control Operations) SQs.
      
      In the 8th to 11th patches we did some small modification which show some small
      extra improvements.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      1df845be
    • Tariq Toukan's avatar
      net/mlx5e: Add ethtool counter for RX buffer allocation failures · 54984407
      Tariq Toukan authored
      Counts the number of RX buffer allocation failures and shows it
      in ethtool statistics.
      Signed-off-by: default avatarTariq Toukan <tariqt@mellanox.com>
      Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      54984407
    • Saeed Mahameed's avatar
      net/mlx5e: Delay skb->data access · e20a0db3
      Saeed Mahameed authored
      Move mlx5e_handle_csum and eth_type_trans to the end of
      mlx5e_build_rx_skb to gain some more time before accessing
      skb->data, to reduce cache misses.
      Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e20a0db3
    • Tariq Toukan's avatar
      net/mlx5e: Remove redundant barrier · 1bfec316
      Tariq Toukan authored
      The bit-op operation one line before is an explicit barrier
      by itself.
      Signed-off-by: default avatarTariq Toukan <tariqt@mellanox.com>
      Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      1bfec316
    • Tariq Toukan's avatar
      net/mlx5e: Use napi_alloc_skb for RX SKB allocations · c5adb96f
      Tariq Toukan authored
      Instead of netdev_alloc_skb, we use the napi_alloc_skb function
      which is designated to allocate skbuff's for RX in a
      channel-specific NAPI instance, and implies the IP packet alignment.
      Signed-off-by: default avatarTariq Toukan <tariqt@mellanox.com>
      Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c5adb96f
    • Tariq Toukan's avatar
      net/mlx5e: Add fragmented memory support for RX multi packet WQE · bc77b240
      Tariq Toukan authored
      If the allocation of a linear (physically continuous) MPWQE fails,
      we allocate a fragmented MPWQE.
      
      This is implemented via device's UMR (User Memory Registration)
      which allows to register multiple memory fragments into ConnectX
      hardware as a continuous buffer.
      UMR registration is an asynchronous operation and is done via
      ICO SQs.
      Signed-off-by: default avatarTariq Toukan <tariqt@mellanox.com>
      Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      bc77b240
    • Tariq Toukan's avatar
      net/mlx5e: Added ICO SQs · d3c9bc27
      Tariq Toukan authored
      Added ICO (Internal Control Operations) SQ per channel to be used
      for driver internal operations such as memory registration for
      fragmented memory and nop requests upon ifconfig up.
      Signed-off-by: default avatarTariq Toukan <tariqt@mellanox.com>
      Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d3c9bc27
    • Tariq Toukan's avatar
      net/mlx5e: Support RX multi-packet WQE (Striding RQ) · 461017cb
      Tariq Toukan authored
      Introduce the feature of multi-packet WQE (RX Work Queue Element)
      referred to as (MPWQE or Striding RQ), in which WQEs are larger
      and serve multiple packets each.
      
      Every WQE consists of many strides of the same size, every received
      packet is aligned to a beginning of a stride and is written to
      consecutive strides within a WQE.
      
      In the regular approach, each regular WQE is big enough to be capable
      of serving one received packet of any size up to MTU or 64K in case of
      device LRO is enabled, making it very wasteful when dealing with
      small packets or device LRO is enabled.
      
      For its flexibility, MPWQE allows a better memory utilization
      (implying improvements in CPU utilization and packet rate) as packets
      consume strides according to their size, preserving the rest of
      the WQE to be available for other packets.
      
      MPWQE default configuration:
      	Num of WQEs	= 16
      	Strides Per WQE = 2048
      	Stride Size	= 64 byte
      
      The default WQEs memory footprint went from 1024*mtu (~1.5MB) to
      16 * 2048 * 64 = 2MB per ring.
      However, HW LRO can now be supported at no additional cost in memory
      footprint, and hence we turn it on by default and get an even better
      performance.
      
      Performance tested on ConnectX4-Lx 50G.
      To isolate the feature under test, the numbers below were measured with
      HW LRO turned off. We verified that the performance just improves when
      LRO is turned back on.
      
      * Netperf single TCP stream:
      - BW raised by 10-15% for representative packet sizes:
        default, 64B, 1024B, 1478B, 65536B.
      
      * Netperf multi TCP stream:
      - No degradation, line rate reached.
      
      * Pktgen: packet rate raised by 2-10% for traffic of different message
      sizes: 64B, 128B, 256B, 1024B, and 1500B.
      
      * Pktgen: packet loss in bursts of small messages (64byte),
      single stream:
      - | num packets | packets loss before | packets loss after
        |     2K      |       ~ 1K          |       0
        |     8K      |       ~ 6K          |       0
        |     16K     |       ~13K          |       0
        |     32K     |       ~28K          |       0
        |     64K     |       ~57K          |     ~24K
      
      As expected as the driver can receive as many small packets (<=64B) as
      the number of total strides in the ring (default = 2048 * 16) vs. 1024
      (default ring size regardless of packets size) before this feature.
      Signed-off-by: default avatarTariq Toukan <tariqt@mellanox.com>
      Signed-off-by: default avatarAchiad Shochat <achiad@mellanox.com>
      Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      461017cb
    • Tariq Toukan's avatar
      net/mlx5e: Use function pointers for RX data path handling · 2f48af12
      Tariq Toukan authored
      In preparation for Striding RQ feature, which will need its own
      RX handlers.
      This patch does not change any functionality.
      Signed-off-by: default avatarTariq Toukan <tariqt@mellanox.com>
      Signed-off-by: default avatarAchiad Shochat <achiad@mellanox.com>
      Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2f48af12
    • Tariq Toukan's avatar
      net/mlx5e: Use only close NUMA node for default RSS · d8c9660d
      Tariq Toukan authored
      Distribute default RSS table uniformly over the rings of the
      close NUMA node, instead of all available channels.
      This way we enforce the preference of close rings over far ones.
      Signed-off-by: default avatarTariq Toukan <tariqt@mellanox.com>
      Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d8c9660d