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2016-09-24i40e: Strip out debugfs hook for Flow Director filter programmingAlexander Duyck
This interface was only ever meant for debug only. Since it is not supposed to be here we are removing it. Change-ID: Id771a1e5e7d3e2b4b7f56591b61fb48c921e1d04 Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24i40e: Split Flow Director descriptor config into separate functionAlexander Duyck
In an effort to improve code readability I am splitting the Flow Director filter configuration out into a separate function like we have done for the standard xmit path. The general idea is to provide a single block of code that translates the flow specification into a proper Flow Director descriptor. Change-ID: Id355ad8030c4e6c72c57504fa09de60c976a8ffe Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24i40e/i40evf: Add txring_txq function to match fm10k and ixgbeAlexander Duyck
This patch adds a txring_txq function which allows us to convert a i40e_ring/i40evf_ring to a netdev_tx_queue structure. This way we can avoid having to make a multi-line function call for all the spots that need access to this. Change-ID: Ic063b71d8b92ea406d2c32e798c8e2b02809d65b Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24i40e: Fix Flow Director raw_buf cleanupAlexander Duyck
The Tx cleanup flow was incorrectly assuming it could check for the flow director bits after it had unmapped the buffer. However in this case it results in us trying to free a raw_buf as though it is an sk_buff. To fix this I am moving up the flag test for the FD_SB bit so that when find a non-NULL skb or raw_buf value we then check the flag and use the appropriate call to free the buffer. Change-ID: I6284034ba1ea87c9922e56f6eb3181f7f09bddde Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24i40evf: enable adaptive interrupt throttlingMitch Williams
All of the code to support adaptive interrupt throttling is already in the interrupt handler, it just needs to be enabled. Fill out the data structures properly to make it happen. Single-flow traffic tests may show slightly lower throughput, but interrupts per second will drop by about 75%. Change-ID: I9cd7d42c025b906bf1bb85c6aeb6112684aa6471 Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24i40e: Increase minimum number of allocated VSIAkeem Abodunrin
This patch increases minimum number of allocated VSIs, so as to resolve failure adding VSI for VF when 64-VFs assigned to a PF. The driver supports up to 128 VFs per device, users can decide to enable up to 64-VFs on a single PF, especially 2 X 40 devices. In that scenario, with VMDq co-existence, there would be starvation of VSIs - with this patch, supported features would have enough VSIs for configuration now. Change-ID: If084f4cd823667af8fe7fdc11489c705b32039d5 Signed-off-by: Akeem Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24i40e/i40evf: Changed version to 1.6.16Bimmy Pujari
Signed-off-by: Bimmy Pujari <bimmy.pujari@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24i40e: removing unreachable codeHenry Tieman
The return value from i40e_shutdown_adminq() is always 0 (I40E_SUCCESS). So, the test for non-0 will never be true. Cleanup by removing the test and debug print statement. Change-ID: Ie51e8e37515c3e3a6a9ff26fa951d0e5e24343c1 Signed-off-by: Henry Tieman <henry.w.tieman@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24i40e: check conflicting ntuple/sideband rules when re-enabling ATRJacob Keller
In i40e_fdir_check_and_reenable(), the driver performs some checks to determine whether it is safe to re-enable FD Sideband and FD ATR support. The current check will only determine if there is available space in the flow director table. However, this ignores the fact that ATR should be disabled when there are TCP/IPv4 sideband rules in effect. Add the missing check, and update the info message printed when I40E_DEBUG_FD is enabled. Change-ID: Ibb9c63e5be95d63c53a498fdd5dbf69f54a00e08 Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24i40e: cleanup ATR auto_disable_flags useJacob Keller
Some locations that disable ATR accidentally used the "full" disable by disabling the flag in the standard flags field. This incorrectly forces ATR off permanently instead of temporarily disabling it. In addition, some code locations accidentally set the ATR flag enabled when they only meant to clear the auto_disable_flags. This results in ignoring the user's ethtool private flag settings. Additionally, when disabling ATR via ethtool, we did not perform a flush of the FD table. This results in the previously assigned ATR rules still functioning which was not expected. Cleanup all these areas so that automatic disable uses only the auto_disable_flag. Fix the flush code so that we can trigger a flush even when we've disabled ATR and SB support, as otherwise the flush doesn't work. Fix ethtool setting to actually request a flush. Fix NETIF_F_NTUPLE flag to only clear the auto_disable setting and not enable the full feature. Change-ID: Ib2486111f8031bd16943e9308757b276305c03b5 Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24i40e: add encap csum VF offload flagPreethi Banala
Add ENCAP_CSUM offload negotiation flag. Currently VF assumes checksum offload for encapsulated packets is supported by default. Going forward, this feature needs to be negotiated with PF before advertising to the stack. Hence, we need a flag to control it. This is in regards to prepping up for VF base mode functionality support. Change-ID: Iaab1f25cc0abda5f2fbe3309092640f0e77d163e Signed-off-by: Preethi Banala <preethi.banala@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24i40e: fix deleting mac filtersAlan Brady
There exists a bug in which deleting a mac filter does not actually occur. The driver reports that the filter has been deleted with no error. The problem occurs because the wrong cmd_flag is passed to the firmware when deleting the filter. The firmware reports an error back to the driver but it is expressly ignored. This fixes the bug by using the correct flag when deleting a filter. Without this patch, deleted filters remain in firmware and function as if they had not been deleted. Change-ID: I5f22b874f3b83f457702f18f0d5602ca21ac40c3 Signed-off-by: Alan Brady <alan.brady@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24i40e: Remove 100 Mbps SGMII support for X722Harshitha Ramamurthy
This patch fixes the problem where driver shows 100 Mbps as a supported speed, and allows it to be configured for advertising on X722 devices. This patch fixes the problem by not setting the 100 Mbps SGMII flag for X722 devices. Without this patch, the user incorrectly thinks that 100 Mbps is supported and hence might try to advertise it on X722 devices when it is actually not a supported speed. Change-ID: I8c3d7c4251a9402d98994ed29749b7b895a0f205 Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-09-24Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Gleixner: "Three fixes for irq core and irq chip drivers: - Do not set the irq type if type is NONE. Fixes a boot regression on various SoCs - Use the proper cpu for setting up the GIC target list. Discovered by the cpumask debugging code. - A rather large fix for the MIPS-GIC so per cpu local interrupts work again. This was discovered late because the code falls back to slower timers which use normal device interrupts" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mips-gic: Fix local interrupts irqchip/gicv3: Silence noisy DEBUG_PER_CPU_MAPS warning genirq: Skip chained interrupt trigger setup if type is IRQ_TYPE_NONE
2016-09-24libnvdimm, region: fix flush hint table thinkoDan Williams
The definition of the flush hint table as: void __iomem *flush_wpq[0][0]; ...passed the unit test, but is broken as flush_wpq[0][1] and flush_wpq[1][0] refer to the same entry. Fix this to use a helper that calculates a slot in the table based on the geometry of flush hints in the region. This is important to get right since virtualization solutions use this mechanism to trigger hypervisor flushes to platform persistence. Reported-by: Dave Jiang <dave.jiang@intel.com> Tested-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2016-09-24hv_netvsc: fix commentsStephen Hemminger
Typo's and spelling errors. Also remove old comment from staging era. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24net: thunderx: Support for byte queue limitsSunil Goutham
This patch adds support for byte queue limits Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24net: thunderx: Fix issue with IRQ namimgSunil Goutham
This patch fixes a regression caused by previous commit when irq name exceeds 20 byte array if interface's name size is large. Fixes: e412621394fa ("net: thunderx: Use netdev's name for naming VF's interrupts") Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24mlxsw: spectrum: remove redundant check if err is zeroColin Ian King
There is an earlier check and return if err is non-zero, so the check to see if it is zero is redundant in every iteration of the loop and hence the check can be removed. Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24Merge branch '10GbE' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Jeff Kirsher says: ==================== 10GbE Intel Wired LAN Driver Updates 2016-09-23 This series contains updates to ixgbe and ixgbevf. Emil provides several changes, first simplifies the logic for setting VLAN filtering by checking the VMDQ flag and the old 82598 MAC, instead of having to maintain a list of MAC types. Then made two functions static that are used only within the file, a by-product is sparse is now happy. Added spinlocks to make sure that the MTU configuration is handled properly. Fixed an issue where when SR-IOV is enabled while the ixgbevf driver is loaded would result in all mailbox requests being rejected by ixgbe, so call ixgbe_sriov_reinit() before pci_enable_sriov() to ensure mailbox requests are properly handled. Mark resolves a NULL pointer issue by simply setting the read and write *_ref_mdi pointers for x550em_a devices. Then clearly indicates within ethtool that all MACs support pause frames and made sure that the advertising is set to the requested mode. Fixed an issue where MDIO_PRTAD_NONE was not being used consistently to indicate no PHY address. Alex fixes an issue, where the support for multiple queues when SR-IOV is enabled was added but the support was not reported. With that, fix an issue where the hardware redirection table could support more queues then the PF currently has when SR-IOV is enabled, so use the RSS mask to trim off the bits that are not used. Lastly, instead of limiting the VFs if we do not use 4 queues for RSS in the PF, we can instead just limit the RSS queues used to a power of 2. We can now support use cases where VFs are using more queues than the PF is currently using and can support RSS if so desired. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24Merge branch '40GbE' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Jeff Kirsher says: ==================== 40GbE Intel Wired LAN Driver Updates 2016-09-22 This series contains updates to i40e and i40evf only. Sridhar fixes link state event handling by updating the carrier and starts/stops the Tx queues based on the link state notification from PF. Brady fixes an issue where a user defined RSS hash key was not being set because a user defined indirection table is not supplied when changing the hash key, so if an indirection table is not supplied now, then a default one is created and the hash key is correctly set. Also fixed an issue where when NPAR was enabled, we were still using pf->mac_seid to perform the dump port query. Instead, go through the VSI to determine the correct ID to use in either case. Mitch provides one fix where a conditional return code was reversed, so he does a "switheroo" to fix the issue. Carolyn has two fixes, first fixes an issue in the virt channel code, where a return code was not checked for NULL when applicable. Second, fixes an issue where we were byte swapping the port parameter, then byte swapping it again in function execution. Colin Ian King fixes a potential NULL pointer dereference. Bimmy changes up i40evf_up_complete() to be void since it always returns success anyways, which allows cleaning up of code which checked the return code from this function. Alex fixed an issue where the driver was incorrectly assuming that we would always be pulling no more than 1 descriptor from each fragment. So to correct this, we just need to make certain to test all the way to the end of the fragments as it is possible for us to span 2 descriptors in the block before us so we need to guarantee that even the last 6 descriptors have enough data to fill a full frame. v2: dropped patches 1-3, 10 and 12 from the original series since Or Gerlitz pointed out several areas of improvement in the implementation of the VF Port representor netdev. Sridhar is re-working the series for later submission. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24net/mlx4: Add VF vlan protocol 802.1ad supportMoshe Shemesh
Move the vf to VST 802.1ad mode (mlx4 VST QinQ mode) by setting vf vlan protocol to 802.1ad. VST 802.1ad mode in mlx4, is used for STAG strip/insertion by PF, while the CTAG is set by the VF. Read current vlan protocol as part of the vf configuration state. Upon setting vf vlan protocol to 802.1ad, we use a mechanism of handshake to verify that both the vf and the pf driver version support it. The handshake uses the command QUERY_FUNC_CAP: - The vf sets a pre-defined support bit in input modifier. - A pf that supports the feature sends the request to the vf through a pre-defined field in the output mailbox. - In case vf does not support the feature, the pf will fail the control command (in this case, IP link tool command to set the vf vlan protocol to 802.1ad). No change in VST 802.1Q mode. Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24net: Update API for VF vlan protocol 802.1ad supportMoshe Shemesh
Introduce new rtnl UAPI that exposes a list of vlans per VF, giving the ability for user-space application to specify it for the VF, as an option to support 802.1ad. We adjusted IP Link tool to support this option. For future use cases, the new UAPI supports multiple vlans. For now we limit the list size to a single vlan in kernel. Add IFLA_VF_VLAN_LIST in addition to IFLA_VF_VLAN to keep backward compatibility with older versions of IP Link tool. Add a vlan protocol parameter to the ndo_set_vf_vlan callback. We kept 802.1Q as the drivers' default vlan protocol. Suitable ip link tool command examples: Set vf vlan protocol 802.1ad: ip link set eth0 vf 1 vlan 100 proto 802.1ad Set vf to VST (802.1Q) mode: ip link set eth0 vf 1 vlan 100 proto 802.1Q Or by omitting the new parameter ip link set eth0 vf 1 vlan 100 Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24net/mlx4_en: Disable vlan HW acceleration when in VF vlan protocol 802.1ad modeMoshe Shemesh
In Ethernet VF, disable vlan HW acceleration on VF while it is set to VF vlan protocol 802.1ad mode. Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24net/mlx4_core: Preparation for VF vlan protocol 802.1adMoshe Shemesh
Check device capability to support VF vlan protocol 802.1ad mode. Add vport attribute vlan protocol. Init vport vlan protocol by default to 802.1Q. Add update QP support for VF vlan protocol 802.1ad. Add func capability vlan_offload_disable to disable all vlan HW acceleration on VF while the VF is set to VF vlan protocol 802.1ad mode. No change in VF vlan protocol 802.1Q (VST) mode. Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24net/mlx4_core: Fix QUERY FUNC CAP flagsMoshe Shemesh
Separate QUERY_FUNC_CAP flags0 from QUERY_FUNC_CAP flags, as 'flags' is already used for another set of flags in FUNC CAP, while phv bit should be part of a different set of flags. Remove QUERY_FUNC_CAP port_flags field, as it is not in use. Fixes: 77fc29c4bbbb ('net/mlx4_core: Preparations for 802.1ad VLAN support') Fixes: 5cc914f10851 ('mlx4_core: Added FW commands and their wrappers for supporting SRIOV') Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-24Bluetooth: Use single return in hci_uart_tty_ioctl() callVignesh Raman
Remove multiple return statements in hci_uart_tty_ioctl() call and added a single return statement. This code re-organisation allows subsequent locking to be easily added. Signed-off-by: Vignesh Raman <Vignesh_Raman@mentor.com> Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com> Signed-off-by: Rajeev Kumar <rajeev_kumar@mentor.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-09-24Bluetooth: BCSP fails to ACK re-transmitted frames from the peerDean Jenkins
Send an ACK frame with the current txack value in response to every received reliable frame unless a TX reliable frame is being sent. This modification allows re-transmitted frames from the remote peer to be acknowledged rather than ignored. It means that the remote peer knows which frame number to start re-transmitting from. Without this modification, the recovery time to a missing frame from the remote peer was unnecessarily being extended because the headers of the out of order reliable frames were being discarded rather than being processed. The frame headers of received frames will indicate whether the local peer's transmissions have been acknowledged by the remote peer. Therefore, the local peer may unnecessarily re-transmit despite the remote peer already indicating that the frame had been acknowledged in out of order reliable frame. Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com> Signed-off-by: Jiada Wang <jiada_wang@mentor.com> Signed-off-by: Rajeev Kumar <rajeev_kumar@mentor.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-09-24Bluetooth: Tidy-up coding style in hci_bcsp.cDean Jenkins
drivers/bluetooth/hci_bcsp.c contains some style issues as highlighted by ./scripts/checkpatch.pl --strict -f drivers/bluetooth/hci_bcsp.c a) comments - maintainer prefers network style comments b) positioning of lines in multi-line statements c) spaces after casts d) missing blank lines after declarations Therefore, tidy-up the above to make it easier to apply future code changes that have conforming style. Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-09-23Merge branch 'i2c/for-current' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Three driver bugfixes: fixing uninitialized memory pointers (eg20t), pm/clock imbalance (qup), and a wrongly set cached variable (pc954x)" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended i2c: mux: pca954x: retry updating the mux selection on failure i2c-eg20t: fix race between i2c init and interrupt enable
2016-09-23Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "Just a fix up for the firmware handling to the Silead driver (which is a new driver in this release)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: silead_gsl1680 - use "silead/" prefix for firmware loading Input: silead_gsl1680 - document firmware-name, fix implementation
2016-09-23Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "Three fixes, two regressions and one that poses a problem in blk-mq with the new nvmef code" * 'for-linus' of git://git.kernel.dk/linux-block: blk-mq: skip unmapped queues in blk_mq_alloc_request_hctx nvme-rdma: only clear queue flags after successful connect blk-throttle: Extend slice if throttle group is not empty
2016-09-23Merge tag 'regmap-fix-v4.8-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap fix from Mark Brown: "A fix for an issue with double locking that was introduced earlier this release. I'd missed in review that we were already in a locked region when trying to drop part of the cache" * tag 'regmap-fix-v4.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: fix deadlock on _regmap_raw_write() error path
2016-09-23Merge tag 'tags/nand-fixes-for-4.8-rc8' of git://git.infradead.org/linux-ubifsLinus Torvalds
Pull MTD fixes from Richard Weinberger: "NAND Fixes for 4.8-rc8. This contains fixes for bugs which got introduced in -rc1. Usually Brian takes NAND patches from Boris, but since Brian is very busy these days with other stuff and Boris is not yet member of the kernel.org web of trust I stepped in. Boris will be in Berlin at ELCE, I'll sign his key and hopefully other Kernel developers too such that he can issue his own pull requests soon. Summary: - Fix a wrong OOB layout definition in the mxc driver - Fix incorrect ECC handling in the mtk driver" * tag 'tags/nand-fixes-for-4.8-rc8' of git://git.infradead.org/linux-ubifs: mtd: nand: mxc: fix obiwan error in mxc_nand_v[12]_ooblayout_free() functions mtd: nand: fix chances to create incomplete ECC data when writing mtd: nand: fix generating over-boundary ECC data when writing
2016-09-23Merge tag 'mmc-v4.8-rc7' of git://git.linaro.org/people/ulf.hansson/mmcLinus Torvalds
Pull MMC fix from Ulf Hansson: "MMC host: - dw_mmc: fix the spamming log message" * tag 'mmc-v4.8-rc7' of git://git.linaro.org/people/ulf.hansson/mmc: mmc: dw_mmc: fix the spamming log message
2016-09-23Revert "xen-netback: create a debugfs node for hash information"David S. Miller
This reverts commit c0c64c152389ad73306b9b0796357210ec6d32ee. There is no vif->ctrl_task member, so this change broke the build. Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23hv_netvsc: count multicast packets receivedStephen Hemminger
Useful for debugging issues with multicast and SR-IOV to keep track of number of received multicast packets. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23hv_netvsc: remove VF in flight countersStephen Hemminger
Since VF reference is now protected by RCU, no longer need the VF usage counter and can use device flags to see whether to inject or not. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23hv_netvsc: use RCU to protect vf_netdevStephen Hemminger
The vf_netdev pointer in the netvsc device context can simply be protected by RCU because network device destruction is already RCU synchronized. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23hv_netvsc: improve VF device matchingStephen Hemminger
The code to associate netvsc and VF devices can be made less error prone by using a better matching algorithms. On registration, use the permanent address which avoids any possible issues caused by device MAC address being changed. For all other callbacks, search by the netdevice pointer value to ensure getting the correct network device. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23hv_netvsc: simplify callback event codeStephen Hemminger
The callback handler for netlink events can be simplified: * Consolidate check for netlink callback events about this driver itself. * Ignore non-Ethernet devices. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23hv_netvsc: dev hold/put reference to VFStephen Hemminger
The netvsc driver holds a pointer to the virtual function network device if managing SR-IOV association. In order to ensure that the VF network device does not disappear, it should be using dev_hold/dev_put to get a reference count. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23hv_netvsc: use consume_skbStephen Hemminger
Packets that are transmitted in normal path should use consume_skb instead of kfree_skb. This allows for better tracing of packet drops. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23net: dsa: mv88e6xxx: implement DSA port fast ageingVivien Didelot
Now that the DSA layer handles port fast ageing on correct STP change, simplify _mv88e6xxx_port_state and implement mv88e6xxx_port_fast_age. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23net: dsa: b53: implement DSA port fast ageingVivien Didelot
Remove the fast ageing logic from b53_br_set_stp_state and implement the new DSA switch port_fast_age operation instead. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23drivers: net: xgene: Fix MSS programmingIyappan Subramanian
Current driver programs static value of MSS in hardware register for TSO offload engine to segment the TCP payload regardless the MSS value provided by network stack. This patch fixes this by programming hardware registers with the stack provided MSS value. Since the hardware has the limitation of having only 4 MSS registers, this patch uses reference count of mss values being used. Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: Toan Le <toanle@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23cxgb4: fix signed wrap around when decrementing index idxColin Ian King
Change predecrement compare to post decrement compare to avoid an unsigned integer wrap-around comparison when decrementing idx in the while loop. For example, when idx is zero, the current situation will predecrement idx in the while loop, wrapping idx to the maximum signed integer and cause out of bounds reads on rxq_info->msix_tbl[idx]. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23net/mlx5e: Add TC vlan match parsingOr Gerlitz
Enhance the parsing of offloaded TC rules matches to handle vlans. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23net/mlx5e: Add TC vlan action for SRIOV offloadsOr Gerlitz
Parse TC vlan actions and set the required elements to allow offloading. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-23net/mlx5: E-Switch, Support VLAN actions in the offloads modeOr Gerlitz
Many virtualization systems use a policy under which a vlan tag is pushed to packets sent by guests, and popped before the packet is forwarded to the VM. The current generation of the mlx5 HW doesn't fully support that on a per flow level. As such, we are addressing the above common use case with the SRIOV e-Switch abilities to push vlan into packets sent by VFs and pop vlan from packets forwarded to VFs. The HW can match on the correct vlan being present in packets forwarded to VFs (eSwitch steering is done before stripping the tag), so this part is offloaded as is. A common practice for vlans is to avoid both push vlan and pop vlan for inter-host VM/VM (east-west) communication because in this case, push on egress cancels out with pop on ingress. For supporting that, we use a global eswitch vlan pop policy, hence allowing guest A to communicate with both remote VM B and local VM C. This works since the HW pops the vlan only if it exists (e.g for C --> A packets but not for B --> A packets). On the slow path, when a VF vport has an offloaded flow which involves pushing vlans, wheres another flow is not currently offloaded, the packets from the 2nd flow seen by the VF representor on the host have vlan. The VF rep driver removes such vlan before calling into the host networking stack. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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