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2016-03-01net/mlx5: Fix global UAR mappingMoshe Lazer6-56/+36
Avoid double mapping of io mapped memory, Device page may be mapped to non-cached(NC) or to write-combining(WC). The code before this fix tries to map it both to WC and NC contrary to what stated in Intel's software developer manual. Here we remove the global WC mapping of all UARS "dev->priv.bf_mapping", since UAR mapping should be decided per UAR (e.g we want different mappings for EQs, CQs vs QPs). Caller will now have to choose whether to map via write-combining API or not. mlx5e SQs will choose write-combining in order to perform BlueFlame writes. Fixes: 88a85f99e51f ('TX latency optimization to save DMA reads') Signed-off-by: Moshe Lazer <moshel@mellanox.com> Reviewed-by: Achiad Shochat <achiad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net/mlx5: Make command timeout way shorterOr Gerlitz1-1/+1
The command timeout is terribly long, whole two hours. Make it 60s so if things do go wrong, the user gets feedback in relatively short time, so they can take corrective actions and/or investigate using tools and such. Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net/mlx5e: Don't modify CQ before it was createdGal Pressman1-0/+6
Calling mlx5e_set_coalesce while the interface is down will result in modifying CQs that don't exist. Fixes: f62b8bb8f2d3 ('net/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality') Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net/mlx5e: Don't try to modify CQ moderation if it is not supportedGal Pressman2-6/+12
If CQ moderation is not supported by the device, print a warning on netdevice load, and return error when trying to modify/query cq moderation via ethtool. Fixes: f62b8bb8f2d3 ('net/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality') Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net/mlx5e: Set drop RQ's necessary parameters onlyTariq Toukan1-2/+10
By its role, there is no need to set all the other parameters for the drop RQ. 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>
2016-03-01net/mlx5e: Move common case counters within sq_stats structTariq Toukan1-4/+6
For data cache locality considerations, we moved the nop and csum_offload_inner within sq_stats struct as they are more commonly accessed in xmit path. 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>
2016-03-01net/mlx5e: Changed naming convention of tx queues in ethtool statsTariq Toukan1-7/+8
Instead of the pair (channel, tc), we now use a single number that goes over all tx queues of a TC, for all TCs. 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>
2016-03-01net/mlx5e: Placement changed for carrier state updatesTariq Toukan1-2/+2
More proper to declare carrier state UP only after the channels are ready for traffic. 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>
2016-03-01net/mlx5e: Replace async events spinlock with synchronize_irq()Tariq Toukan4-17/+14
We only need to flush the irq handler to make sure it does not queue a work into the global work queue after we start to flush it. So using synchronize_irq() is more appropriate than a spin lock. 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>
2016-03-01net: ipv6/l3mdev: Move host route on saved address if necessaryDavid Ahern1-0/+26
Commit f1705ec197e70 allows IPv6 addresses to be retained on a link down. The address can have a cached host route which can point to the wrong FIB table if the L3 enslavement is changed (e.g., route can point to local table instead of VRF table if device is added to an L3 domain). On link up check the table of the cached host route against the FIB table associated with the device and correct if needed. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: sctp: Convert log timestamps to be y2038 safeDeepa Dinamani1-5/+5
SCTP probe log timestamps use struct timespec which is not y2038 safe. Use struct timespec64 which is 2038 safe instead. Use monotonic time instead of real time as only time differences are logged. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Neil Horman <nhorman@tuxdriver.com> Cc: Vlad Yasevich <vyasevich@gmail.com> Cc: Neil Horman <nhorman@tuxdriver.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-sctp@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: ipv4: tcp_probe: Replace timespec with timespec64Deepa Dinamani1-4/+4
TCP probe log timestamps use struct timespec which is not y2038 safe. Even though timespec might be good enough here as it is used to represent delta time, the plan is to get rid of all uses of timespec in the kernel. Replace with struct timespec64 which is y2038 safe. Prints still use unsigned long format and type. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: James Morris <jmorris@namei.org> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: Patrick McHardy <kaber@trash.net> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: ipv4: Convert IP network timestamps to be y2038 safeDeepa Dinamani4-12/+35
ICMP timestamp messages and IP source route options require timestamps to be in milliseconds modulo 24 hours from midnight UT format. Add inet_current_timestamp() function to support this. The function returns the required timestamp in network byte order. Timestamp calculation is also changed to call ktime_get_real_ts64() which uses struct timespec64. struct timespec64 is y2038 safe. Previously it called getnstimeofday() which uses struct timespec. struct timespec is not y2038 safe. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: James Morris <jmorris@namei.org> Cc: Patrick McHardy <kaber@trash.net> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01Support to encoding decoding skb prio on IFE actionJamal Hadi Salim3-0/+82
Example usage: Set the skb priority using skbedit then allow it to be encoded sudo tc qdisc add dev $ETH root handle 1: prio sudo tc filter add dev $ETH parent 1: protocol ip prio 10 \ u32 match ip protocol 1 0xff flowid 1:2 \ action skbedit prio 17 \ action ife encode \ allow prio \ dst 02:15:15:15:15:15 Note: You dont need the skbedit action if you are already encoding the skb priority earlier. A zero skb priority will not be sent Alternative hard code static priority of decimal 33 (unlike skbedit) then mark of 0x12 every time the filter matches sudo $TC filter add dev $ETH parent 1: protocol ip prio 10 \ u32 match ip protocol 1 0xff flowid 1:2 \ action ife encode \ type 0xDEAD \ use prio 33 \ use mark 0x12 \ dst 02:15:15:15:15:15 Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01Support to encoding decoding skb mark on IFE actionJamal Hadi Salim3-0/+85
Example usage: Set the skb using skbedit then allow it to be encoded sudo tc qdisc add dev $ETH root handle 1: prio sudo tc filter add dev $ETH parent 1: protocol ip prio 10 \ u32 match ip protocol 1 0xff flowid 1:2 \ action skbedit mark 17 \ action ife encode \ allow mark \ dst 02:15:15:15:15:15 Note: You dont need the skbedit action if you are already encoding the skb mark earlier. A zero skb mark, when seen, will not be encoded. Alternative hard code static mark of 0x12 every time the filter matches sudo $TC filter add dev $ETH parent 1: protocol ip prio 10 \ u32 match ip protocol 1 0xff flowid 1:2 \ action ife encode \ type 0xDEAD \ use mark 0x12 \ dst 02:15:15:15:15:15 Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01introduce IFE actionJamal Hadi Salim5-0/+982
This action allows for a sending side to encapsulate arbitrary metadata which is decapsulated by the receiving end. The sender runs in encoding mode and the receiver in decode mode. Both sender and receiver must specify the same ethertype. At some point we hope to have a registered ethertype and we'll then provide a default so the user doesnt have to specify it. For now we enforce the user specify it. Lets show example usage where we encode icmp from a sender towards a receiver with an skbmark of 17; both sender and receiver use ethertype of 0xdead to interop. YYYY: Lets start with Receiver-side policy config: xxx: add an ingress qdisc sudo tc qdisc add dev $ETH ingress xxx: any packets with ethertype 0xdead will be subjected to ife decoding xxx: we then restart the classification so we can match on icmp at prio 3 sudo $TC filter add dev $ETH parent ffff: prio 2 protocol 0xdead \ u32 match u32 0 0 flowid 1:1 \ action ife decode reclassify xxx: on restarting the classification from above if it was an icmp xxx: packet, then match it here and continue to the next rule at prio 4 xxx: which will match based on skb mark of 17 sudo tc filter add dev $ETH parent ffff: prio 3 protocol ip \ u32 match ip protocol 1 0xff flowid 1:1 \ action continue xxx: match on skbmark of 0x11 (decimal 17) and accept sudo tc filter add dev $ETH parent ffff: prio 4 protocol ip \ handle 0x11 fw flowid 1:1 \ action ok xxx: Lets show the decoding policy sudo tc -s filter ls dev $ETH parent ffff: protocol 0xdead xxx: filter pref 2 u32 filter pref 2 u32 fh 800: ht divisor 1 filter pref 2 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:1 (rule hit 0 success 0) match 00000000/00000000 at 0 (success 0 ) action order 1: ife decode action reclassify index 1 ref 1 bind 1 installed 14 sec used 14 sec type: 0x0 Metadata: allow mark allow hash allow prio allow qmap Action statistics: Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 xxx: Observe that above lists all metadatum it can decode. Typically these submodules will already be compiled into a monolithic kernel or loaded as modules YYYY: Lets show the sender side now .. xxx: Add an egress qdisc on the sender netdev sudo tc qdisc add dev $ETH root handle 1: prio xxx: xxx: Match all icmp packets to 192.168.122.237/24, then xxx: tag the packet with skb mark of decimal 17, then xxx: Encode it with: xxx: ethertype 0xdead xxx: add skb->mark to whitelist of metadatum to send xxx: rewrite target dst MAC address to 02:15:15:15:15:15 xxx: sudo $TC filter add dev $ETH parent 1: protocol ip prio 10 u32 \ match ip dst 192.168.122.237/24 \ match ip protocol 1 0xff \ flowid 1:2 \ action skbedit mark 17 \ action ife encode \ type 0xDEAD \ allow mark \ dst 02:15:15:15:15:15 xxx: Lets show the encoding policy sudo tc -s filter ls dev $ETH parent 1: protocol ip xxx: filter pref 10 u32 filter pref 10 u32 fh 800: ht divisor 1 filter pref 10 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:2 (rule hit 0 success 0) match c0a87aed/ffffffff at 16 (success 0 ) match 00010000/00ff0000 at 8 (success 0 ) action order 1: skbedit mark 17 index 6 ref 1 bind 1 Action statistics: Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 action order 2: ife encode action pipe index 3 ref 1 bind 1 dst MAC: 02:15:15:15:15:15 type: 0xDEAD Metadata: allow mark Action statistics: Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 xxx: test by sending ping from sender to destination Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01bridge: mcast: add support for more router port information dumpingNikolay Aleksandrov2-3/+27
Allow for more multicast router port information to be dumped such as timer and type attributes. For that that purpose we need to extend the MDBA_ROUTER_PORT attribute similar to how it was done for the mdb entries recently. The new format is thus: [MDBA_ROUTER_PORT] = { <- nested attribute u32 ifindex <- router port ifindex for user-space compatibility [MDBA_ROUTER_PATTR attributes] } This way it remains compatible with older users (they'll simply retrieve the u32 in the beginning) and new users can parse the remaining attributes. It would also allow to add future extensions to the router port without breaking compatibility. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01bridge: mcast: add support for temporary port routerNikolay Aleksandrov2-2/+20
Add support for a temporary router port which doesn't depend only on the incoming query. It can be refreshed if set to the same value, which is a no-op for the rest. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01bridge: mcast: do nothing if port's multicast_router is set to the same valNikolay Aleksandrov1-1/+4
This is needed for the upcoming temporary port router. There's no point to go through the logic if the value is the same. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01bridge: mcast: use names for the different multicast_router typesNikolay Aleksandrov2-28/+40
Using raw values makes it difficult to extend and also understand the code, give them names and do explicit per-option manipulation in br_multicast_set_port_router. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: dsa: mv88e6xxx: support VLAN filteringVivien Didelot4-0/+43
Implement port_vlan_filtering in the driver to toggle the related port 802.1Q mode between DISABLED and SECURE, on user request. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: dsa: mv88e6xxx: remove reserved VLANsVivien Didelot1-30/+3
Now that ports isolation is correctly configured when joining or leaving a bridge, there is no need to rely on reserved VLANs to isolate unbridged ports anymore. Thus remove them, and disable 802.1Q on setup. This restores the expected behavior of hardware bridging for systems without 802.1Q or VLAN filtering enabled. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: dsa: mv88e6xxx: restore VLANTable map controlVivien Didelot1-7/+47
The In Chip Port Based VLAN Table contains bits used to restrict which output ports this input port can send frames to. With the VLAN filtering enabled, these tables work in conjunction with the VLAN Table Unit to allow egressing frames. In order to remove the current dependency to BRIDGE_VLAN_FILTERING for basic hardware bridging to work, it is necessary to restore a fine control of each port's VLANTable, on setup and when a port joins or leaves a bridge. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: dsa: mv88e6xxx: assign dynamic FDB to bridgesVivien Didelot1-2/+39
Give a new bridge a fresh FDB, assign it to its members, and restore a fresh FDB to a port leaving a bridge. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: dsa: mv88e6xxx: assign default FDB to portsVivien Didelot2-7/+91
Restore per-port FDB. Assign them on setup, allow adding and deleting addresses into them, and dump them. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: dsa: mv88e6xxx: assign dynamic FDB to VLANsVivien Didelot2-9/+49
Add a _mv88e6xxx_fid_new function which gives and flushes the lowest FID available. Call it when preparing a new VTU entry. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: dsa: mv88e6xxx: extract single FDB dumpVivien Didelot1-33/+46
Move out the code which dumps a single FDB to its own function. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: dsa: mv88e6xxx: extract single VLAN retrievalVivien Didelot1-20/+35
Rename _mv88e6xxx_vlan_init in _mv88e6xxx_vtu_new, eventually called from a new _mv88e6xxx_vtu_get function, which abstracts the VTU GetNext VID-1 trick to retrieve a single entry. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: dsa: support VLAN filtering switchdev attrVivien Didelot2-0/+23
When a user explicitly requests VLAN filtering with something like: # echo 1 > /sys/class/net/<bridge>/bridge/vlan_filtering Switchdev propagates a SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING port attribute. Add support for it in the DSA layer with a new port_vlan_filtering function to let drivers toggle 802.1Q filtering on user demand. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01mlxsw: spectrum: Introduce port splittingIdo Schimmel3-3/+219
Allow a user to split or unsplit a port using the newly introduced devlink ops. Once split, the original netdev is destroyed and 2 or 4 others are created, according to user configuration. The new ports are like any other port, with the sole difference of supporting a lower maximum speed. When unsplit, the reverse process takes place. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01mlxsw: spectrum: Mark unused ports using NULLIdo Schimmel1-0/+1
When splitting and unsplitting we'll destroy usable ports on the fly, so mark them using a NULL pointer to indicate that their local port number is free and can be re-used. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01mlxsw: spectrum: Store local port to module mapping during initIdo Schimmel2-21/+16
The port netdevs are each associated with a different local port number in the device. These local ports are grouped into groups of 4 (e.g. (1-4), (5-8)) called clusters. The cluster constitutes the one of two possible modules they can be mapped to. This mapping is board-specific and done by the device's firmware during init. When splitting a port by 4, the device requires us to first unmap all the ports in the cluster and then map each to a single lane in the module associated with the port netdev used as the handle for the operation. This means that two port netdevs will disappear, as only 100Gb/s (4 lanes) ports can be split and we are guaranteed to have two of these ((1, 3), (5, 7) etc.) in a cluster. When unsplit occurs we need to reinstantiate the two original 100Gb/s ports and map each to its origianl module. Therefore, during driver init store the initial local port to module mapping, so it can be used later during unsplitting. Note that a by 2 split doesn't require us to store the mapping, as we only need to reinstantiate one port whose module is known. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01mlxsw: spectrum: Unmap local port from module during teardownIdo Schimmel1-0/+11
When splitting a port we replace it with 2 or 4 other ports. To be able to do that we need to remove the original port netdev and unmap it from its module. However, we first mark it as disabled, as active ports cannot be unmapped. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01mlxsw: core: Add devlink port splitter callbacksJiri Pirko2-1/+35
Add middle layer in mlxsw core code to forward port split/unsplit calls into specific ASIC drivers. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01mlxsw: Implement devlink interfaceJiri Pirko4-6/+58
Implement newly introduced devlink interface. Add devlink port instances for every port and set the port types accordingly. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01mlx4: Implement port type setting via devlink interfaceJiri Pirko1-21/+65
So far, there has been an mlx4-specific sysfs file allowing user to change port type to either Ethernet of InfiniBand. This is very inconvenient. Allow to expose the same ability to set port type in a generic way using devlink interface. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01mlx4: Implement devlink interfaceJiri Pirko6-13/+60
Implement newly introduced devlink interface. Add devlink port instances for every port and set the port types accordingly. Signed-off-by: Jiri Pirko <jiri@mellanox.com> v2->v3: -add dev param to devlink_register (api change) Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01Introduce devlink infrastructureJiri Pirko6-0/+966
Introduce devlink infrastructure for drivers to register and expose to userspace via generic Netlink interface. There are two basic objects defined: devlink - one instance for every "parent device", for example switch ASIC devlink port - one instance for every physical port of the device. This initial portion implements basic get/dump of objects to userspace. Also, port splitter and port type setting is implemented. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: sched: cls_u32 add bit to specify software only rulesJohn Fastabend3-12/+39
In the initial implementation the only way to stop a rule from being inserted into the hardware table was via the device feature flag. However this doesn't work well when working on an end host system where packets are expect to hit both the hardware and software datapaths. For example we can imagine a rule that will match an IP address and increment a field. If we install this rule in both hardware and software we may increment the field twice. To date we have only added support for the drop action so we have been able to ignore these cases. But as we extend the action support we will hit this example plus more such cases. Arguably these are not even corner cases in many working systems these cases will be common. To avoid forcing the driver to always abort (i.e. the above example) this patch adds a flag to add a rule in software only. A careful user can use this flag to build software and hardware datapaths that work together. One example we have found particularly useful is to use hardware resources to set the skb->mark on the skb when the match may be expensive to run in software but a mark lookup in a hash table is cheap. The idea here is hardware can do in one lookup what the u32 classifier may need to traverse multiple lists and hash tables to compute. The flag is only passed down on inserts. On deletion to avoid stale references in hardware we always try to remove a rule if it exists. The flags field is part of the classifier specific options. Although it is tempting to lift this into the generic structure doing this proves difficult do to how the tc netlink attributes are implemented along with how the dump/change routines are called. There is also precedence for putting seemingly generic pieces in the specific classifier options such as TCA_U32_POLICE, TCA_U32_ACT, etc. So although not ideal I've left FLAGS in the u32 options as well as it simplifies the code greatly and user space has already learned how to manage these bits ala 'tc' tool. Another thing if trying to update a rule we require the flags to be unchanged. This is to force user space, software u32 and the hardware u32 to keep in sync. Thanks to Simon Horman for catching this case. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: cls_u32: move TC offload feature bit into cls_u32 offload logicJohn Fastabend2-3/+3
In the original series drivers would get offload requests for cls_u32 rules even if the feature bit is disabled. This meant the driver had to do a boiler plate check on the feature bit before adding/deleting the rule. This patch lifts the check into the core code and removes it from the driver specific case. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net: sched: consolidate offload decision in cls_u32John Fastabend2-4/+9
The offload decision was originally very basic and tied to if the dev implemented the appropriate ndo op hook. The next step is to allow the user to more flexibly define if any paticular rule should be offloaded or not. In order to have this logic in one function lift the current check into a helper routine tc_should_offload(). Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01veth: implement ndo_set_rx_headroomPaolo Abeni1-0/+26
The rx headroom for veth dev is the peer device needed_headroom. Avoid ping-pong updates setting the private flag IFF_PHONY_HEADROOM. This avoids skb head reallocation when forwarding from a veth dev towards a device adding some kind of encapsulation. When transmitting frames below the MTU size towards a vxlan device, this gives about 10% performance speed-up when OVS is used to connect the veth and the vxlan device and a little more when using a plain Linux bridge. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01net/tun: implement ndo_set_rx_headroomPaolo Abeni1-1/+16
ndo_set_rx_headroom controls the align value used by tun devices to allocate skbs on frame reception. When the xmit device adds a large encapsulation, this avoids an skb head reallocation on forwarding. The measured improvement when forwarding towards a vxlan dev with frame size below the egress device MTU is as follow: vxlan over ipv6, bridged: +6% vxlan over ipv6, ovs: +7% In case of ipv4 tunnels there is no improvement, since the tun device default alignment provides enough headroom to avoid the skb head reallocation. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01ovs: propagate per dp max headroom to all vportsPaolo Abeni3-1/+53
This patch implements bookkeeping support to compute the maximum headroom for all the devices in each datapath. When said value changes, the underlying devs are notified via the ndo_set_rx_headroom method. This also increases the internal vports xmit performance. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01bridge: notify enslaved devices of headroom changesPaolo Abeni1-2/+35
On bridge needed_headroom changes, the enslaved devices are notified via the ndo_set_rx_headroom method Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01netdev: introduce ndo_set_rx_headroomPaolo Abeni1-0/+31
This method allows the controlling device (i.e. the bridge) to specify additional headroom to be allocated for skb head on frame reception. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01bnxt_en: Add hwrm_send_message_silent().Michael Chan3-1/+13
This is used to send NVM_FIND_DIR_ENTRY messages which can return error if the entry is not found. This is normal and the error message will cause unnecessary alarm, so silence it. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01bnxt_en: Refactor _hwrm_send_message().Michael Chan1-5/+9
Add a new function bnxt_do_send_msg() to do essentially the same thing with an additional paramter to silence error response messages. All current callers will set silent to false. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01bnxt_en: Add installed-package firmware version reporting via Ethtool GDRVINFORob Swindell3-8/+109
For everything to fit, we remove the PHY microcode version and replace it with the firmware package version in the fw_version string. Signed-off-by: Rob Swindell <swindell@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01bnxt_en: Fix dmesg log firmware error messages.Michael Chan3-31/+17
Use appropriate firmware request header structure to prepare the firmware messages. This avoids the unnecessary conversion of the fields to 32-bit fields. Add appropriate endian conversion when printing out the message fields in dmesg so that they appear correct in the log. Reported-by: Rob Swindell <swindell@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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