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2016-05-01i40e: PTP - avoid aggregate return warningsJesse Brandeburg1-1/+2
Aggregate return warnings are when struct types are returned and must be copied to the lvalue with a struct copy by the compiler. This fixes warnings of type aggregate-return from gcc with W=2. Change-Id: I896b1bf514544bf0faeb458869d79914b9f1b168 Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01i40e: Fix uninitialized variableCatherine Sullivan1-5/+1
We have an uninitialized variable warning for valid_len for one case in validate_vf_mesg. To fix this, just initialize it to 0 at the top of the function and remove all of the now redundant assignments to 0 in the individual cases. Change-Id: Iacbd97f4c521ed8d662eef803a598d8707708cfd Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01i40evf: RSS Hash Option parametersCarolyn Wyborny1-199/+2
This patch syncs the VF code for the changes made to the PF for the RSS hash tuple settings. Since the VF still cannot change the RSS hash settings, change the code to make this clear to the user. Previously, the default settings were returned in this function. However, the default can be changed by the PF so this does not make sense anymore. Change-Id: I085eaf005fc7978b440d2a1bf2b2dd7cadaff39b Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01i40e: Remove HMC AQ API implementationNeerav Parikh5-88/+0
Remove the code that implements the HMC AQ APIs and call these APIs. This is done because these are obsolete APIs and are not supported by firmware. Change-ID: I5d771d8f37c3e16e7b0a972ff9b27e75aa2d05d4 Signed-off-by: Neerav Parikh <neerav.parikh@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01i40e: Prevent falling to promiscuous if the VF is not trustedAnjali Singhai Jain1-0/+6
With this change a non trusted VF can never fall to promiscuous mode when there is no room for a MAC/VLAN filter. Change-Id: I8a155aa25c0bcdc6093414920c9ade4ee0bd20e8 Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01i40e: Limit the number of MAC and VLAN addresses that can be added for VFsAnjali Singhai Jain2-2/+26
If the VF is privileged/trusted it can do as it may please including but not limited to hogging resources and playing unfair. But if the VF is not privileged/trusted it still can add some number (8) of MAC and VLAN addresses. Other restrictions with respect to Port VLAN and normal VLAN still apply to not privileged/trusted VF. Change-Id: I3a9529201b184c8873e1ad2e300aff468c9e6296 Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-05-01i40e: Change the default for VFs to be not privilegedAnjali Singhai Jain1-10/+10
Make sure a VF is not trusted/privileged until its explicitly set for trust through the new NDO op interface. Change-Id: I476385c290d2b4901d8fceb29de43546accdc499 Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-04-29net/mlx5e: Enabling aRFS mechanismMaor Gottlieb4-2/+127
Accelerated RFS requires that ntuple filtering is enabled via ethtool and driver supports ndo_rx_flow_steer. When the ntuple filtering is enabled, we modify the l3_l4 ttc rules to point on the aRFS flow tables and when the filtering is disabled, we modify the l3_l4 ttc rules to point on the RSS TIRs. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net/mlx5e: Add accelerated RFS supportMaor Gottlieb2-1/+436
Implement ndo_rx_flow_steer ndo. A new flow steering rule will be composed from the skb 4-tuple and added to the hardware aRFS flow table. Each rule is stored in an internal hash table, if such skb 4-tuple rule already exists we update the corresponding hardware steering rule with the new destination. For garbage collection rps_may_expire_flow will be invoked for a limited amount of old rules upon any ndo_rx_flow_steer invocation. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net/mlx5e: Create aRFS flow tablesMaor Gottlieb6-14/+313
Create the following four flow tables for aRFS usage: 1. IPv4 TCP - filtering 4-tuple of IPv4 TCP packets. 2. IPv6 TCP - filtering 4-tuple of IPv6 TCP packets. 3. IPv4 UDP - filtering 4-tuple of IPv4 UDP packets. 4. IPv6 UDP - filtering 4-tuple of IPv6 UDP packets. Each flow table has two flow groups: one for the 4-tuple filtering (full match) and the other contains * rule for miss rule. Full match rule means a hit for aRFS and packet will be forwarded to the dedicated RQ/Core, miss rule packets will be forwarded to default RSS hashing. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net/mlx5: Initializing CPU reverse mappingMaor Gottlieb3-0/+24
Allocating CPU rmap and add entry for each IRQ. CPU rmap is used in aRFS to get the RX queue number of the RX completion interrupts. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net/mlx5e: Split the main flow steering tableMaor Gottlieb4-563/+462
Currently, the main flow table is used for two purposes: One is to do mac filtering and the other is to classify the packet l3-l4 header in order to steer the packet to the right RSS TIR. This design is very complex, for each configured mac address we have to add eleven rules (rule for each traffic type), the same if the device is put to promiscuous/allmulti mode. This scheme isn't scalable for future features like aRFS. In order to simplify it, the main flow table is split to two flow tables: 1. l2 table - filter the packet dmac address, if there is a match we forward to the ttc flow table. 2. TTC (Traffic Type Classifier) table - classify the traffic type of the packet and steer the packet to the right TIR. In this new design, when new mac address is added, the driver adds only one flow rule instead of eleven. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net/mlx5e: Refactor mlx5e flow steering structsMaor Gottlieb5-154/+160
Slightly refactor and re-order the flow steering structs, tables and data-bases for better self-containment and flexibility to add more future steering phases (tables/rules/data bases) e.g: aRFS. Changes: 1. Move the vlan DB and address DB into their table structs. 2. Rename steering table structs to unique format: mlx5e_*_table, e.g: mlx5e_vlan_table. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net/mlx5: Support different attributes for priorities in namespaceMaor Gottlieb1-12/+19
Currently, namespace could be initialized only with priorities with the same attributes. Add support to initialize namespace with priorities with different attributes(e.g. different number of levels). Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net/mlx5: Add user chosen levels when allocating flow tablesMaor Gottlieb6-40/+70
Currently, consumers of the flow steering infrastructure can't choose their own flow table levels and are limited to one flow table per level. This just waste levels. Instead, we introduce here the possibility to use multiple flow tables in a level. The user is free to connect these flow tables, while following the rule (FTEs in FT of level x could only point to FTs of level y where y > x). In addition this patch switch the order of the create/destroy flow tables of the NIC(vlan and main). Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net/mlx5: Set number of allowed levels in priorityMaor Gottlieb2-30/+33
Refactors the flow steering namespace creation, by changing the name num_fts to num_levels. When new flow table is created, the driver assign new level to this flow table therefore the meaning is equivalent. Since downstream patches will introduce the ability to create more than one flow table per level, the name num_fts is no longer accurate. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net/mlx5: Introduce modify flow rule destinationMaor Gottlieb2-2/+5
This API is used for modifying the flow rule destination. This is needed for modifying the pointed flow table by the traffic type classifier rules to point on the aRFS tables. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net/mlx5e: Direct TIR per RQTariq Toukan4-138/+191
Introduce new TIRs for direct access per RQ. Now we have 2 available kinds of TIRs: - indirect TIR per traffic type, each points to one RQT (RSS RQT) same as before. - New direct TIR per RQ, each points to RQT with a size of one that forwards packets to that RQ only. Driver will open max channels (num cores) direct TIRs by default, they will be filled with the actual RQs once channels are allocated. Needed for downstream aRFS and ethtool direct steering functionalities. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net/mlx5e: Call vxlan_get_rx_port() with rtnl lockMatthew Finlay1-1/+4
Hold the rtnl lock when calling vxlan_get_rx_port(). Fixes: b7aade15485a ("vxlan: break dependency with netdev drivers") Signed-off-by: Matthew Finlay <matt@mellanox.com> Reported-by: Alexander Duyck <alexander.duyck@gmail.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net: ethernet: enc28j60: add device tree supportMichael Heimpold2-3/+76
The following patch adds the required match table for device tree support (and while at, fix the indent). It's also possible to specify the MAC address in the DT blob. Also add the corresponding binding documentation file. Signed-off-by: Michael Heimpold <mhei@heimpold.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net: ethernet: enc28j60: support half-duplex SPI controllersMichael Heimpold1-5/+9
The current spi_read_buf function fails on SPI host masters which are only half-duplex capable. Splitting the Tx and Rx part solves this issue. Tested on Raspberry Pi (full duplex) and I2SE Duckbill (half duplex). Signed-off-by: Michael Heimpold <mhei@heimpold.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net: constify is_skb_forwardable's argumentsNikolay Aleksandrov2-2/+3
is_skb_forwardable is not supposed to change anything so constify its arguments Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29ppp: add rtnetlink device creation supportGuillaume Nault2-3/+120
Define PPP device handler for use with rtnetlink. The only PPP specific attribute is IFLA_PPP_DEV_FD. It is mandatory and contains the file descriptor of the associated /dev/ppp instance (the file descriptor which would have been used for ioctl(PPPIOCNEWUNIT) in the ioctl-based API). The PPP device is removed when this file descriptor is released (same behaviour as with ioctl based PPP devices). PPP devices created with the rtnetlink API behave like the ones created with ioctl(PPPIOCNEWUNIT). In particular existing ioctls work the same way, no matter how the PPP device was created. The rtnl callbacks are also assigned to ioctl based PPP devices. This way, rtnl messages have the same effect on any PPP devices. The immediate effect is that all PPP devices, even ioctl-based ones, can now be removed with "ip link del". A minor difference still exists between ioctl and rtnl based PPP interfaces: in the device name, the number following the "ppp" prefix corresponds to the PPP unit number for ioctl based devices, while it is just an unrelated incrementing index for rtnl ones. Signed-off-by: Guillaume Nault <g.nault@alphalink.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29ppp: define reusable device creation functionsGuillaume Nault1-88/+118
Move PPP device initialisation and registration out of ppp_create_interface(). This prepares code for device registration with rtnetlink. While there, simplify the prototype of ppp_create_interface(): * Since ppp_dev_configure() takes care of setting file->private_data, there's no need to return a ppp structure to ppp_unattached_ioctl() anymore. * The unit parameter is made read/write so that ppp_create_interface() can tell which unit number has been assigned. Signed-off-by: Guillaume Nault <g.nault@alphalink.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29net: ethernet: stmmac: update MDIO support for GMAC4Alexandre TORGUE1-4/+98
On new GMAC4 IP, MAC_MDIO_address register has been updated, and bitmaps changed. This patch takes into account those changes. Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29vxlan: fix initialization with custom link parametersJiri Benc1-4/+4
Commit 0c867c9bf84c ("vxlan: move Ethernet initialization to a separate function") changed initialization order and as an unintended result, when the user specifies additional link parameters (such as IFLA_ADDRESS) while creating vxlan interface, those are overwritten by vxlan_ether_setup later. It's necessary to call ether_setup from withing the ->setup callback. That way, the correct parameters are set by rtnl_create_link later. This is done also for VXLAN-GPE, as we don't know the interface type yet at that point, and changed to the correct interface type later. Fixes: 0c867c9bf84c ("vxlan: move Ethernet initialization to a separate function") Reported-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: Jiri Benc <jbenc@redhat.com> Tested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29samples/bpf: like LLC also verify and allow redefining CLANG commandJesper Dangaard Brouer2-14/+17
Users are likely to manually compile both LLVM 'llc' and 'clang' tools. Thus, also allow redefining CLANG and verify command exist. Makefile implementation wise, the target that verify the command have been generalized. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-29samples/bpf: allow make to be run from samples/bpf/ directoryJesper Dangaard Brouer2-0/+11
It is not intuitive that 'make' must be run from the top level directory with argument "samples/bpf/" to compile these eBPF samples. Introduce a kbuild make file trick that allow make to be run from the "samples/bpf/" directory itself. It basically change to the top level directory and call "make samples/bpf/" with the "/" slash after the directory name. Also add a clean target that only cleans this directory, by taking advantage of the kbuild external module setting M=$PWD. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>