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2016-06-25net_sched: drop packets after root qdisc lock is releasedEric Dumazet28-114/+170
Qdisc performance suffers when packets are dropped at enqueue() time because drops (kfree_skb()) are done while qdisc lock is held, delaying a dequeue() draining the queue. Nominal throughput can be reduced by 50 % when this happens, at a time we would like the dequeue() to proceed as fast as possible. Even FQ is vulnerable to this problem, while one of FQ goals was to provide some flow isolation. This patch adds a 'struct sk_buff **to_free' parameter to all qdisc->enqueue(), and in qdisc_drop() helper. I measured a performance increase of up to 12 %, but this patch is a prereq so that future batches in enqueue() can fly. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25Merge branch 'liquidio-next'David S. Miller14-465/+1328
Raghu Vatsavayi says: ==================== liquidio: updates and bug fixes Please consider following patch series for liquidio bug fixes and updates on top of net-next. Following patches should be applied in the following order as some of them depend on earlier patches in the series. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: ddr timeoutRaghu Vatsavayi2-7/+9
Adds support for ddr_timeout during device init. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: Support priv flagRaghu Vatsavayi3-0/+35
This patch adds support for private flags for the driver. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: ptp infoRaghu Vatsavayi1-2/+7
This patch has minor changes for proper ptp info retreival. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: New xaui infoRaghu Vatsavayi2-11/+20
This patch adds support for host driver support for new Xaui interfaces. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: New statistics supportRaghu Vatsavayi6-65/+588
This patch adds extensive support of statistics for data path, control path and firmware. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: tx rx interrupt moderationRaghu Vatsavayi3-141/+200
This patch has new tx/rx interrupt moderation defaults of count/timer for better throughput and utilisation. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: chip reset changesRaghu Vatsavayi1-6/+7
This patch resolves the order of chip reset while destroying the resources by postoponing soft reset in destroy resources function until all queues are removed properly. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: New unload stateRaghu Vatsavayi4-2/+30
This patch adds new state so that the ctrl packets are not sent to firmware during unload time and only rx packets are allowed. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: Firmware image downloadRaghu Vatsavayi3-42/+65
This patch has firmware image related changes for: firmware release upon failure, support latest firmware version and firmware download in 4MB chunks. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: Napi rx/tx trafficRaghu Vatsavayi6-105/+177
This Patch adds tx buffer handling to Napi along with RX traffic. Also separate spinlocks are introduced for handling iq posting and buffer reclaim so that tx path and tx interrupt do not compete against each other. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: Vlan filteringRaghu Vatsavayi2-3/+83
This patch adds supports for Vlan filtering for liquidio driver. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: Vlan offloads changesRaghu Vatsavayi2-26/+46
This patch adds support for vlan offloads for the driver and receive header structures are also modified appropriately. Also requestID will not be used in reveive header any more. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25liquidio: soft command buffer limitsRaghu Vatsavayi9-63/+69
This patch increases the limits of soft command buffer size and num command buffers. This patch also has changes for queue macros and limit related changes for new chips. Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25cxgb4vf: Synchronize access to mailboxHariprasad Shenai3-0/+65
The issue comes when there are multiple threads attempting to use the mailbox facility at the same time. The issue is the for the Virtual Function Driver, the only way to get the Virtual Interface statistics is to issue mailbox commands to ask the firmware for the VI Stats. And, because the VI Stats command can only retrieve a smallish number of stats per mailbox command, we have to issue three mailbox commands in quick succession. When ethtool or netstat command to get interface stats and interface up/down is run in a loop for every 0.1 sec, we observed mailbox collisions. And out of the two commands one would fail with the present code, since we don't queue the second command. To overcome the above issue, added a queue to access the mailbox. Whenever a mailbox command is issued add it to the queue. If its at the head issue the mailbox command, else wait for the existing command to complete. Usually command takes less than a milli-second to complete. Also timeout from the loop, if the command under execution takes long time to run. In reality, the number of mailbox access collisions is going to be very rare since no one runs such abusive script. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25samples/bpf: set max locked memory to ulimitedWilliam Tu2-0/+6
Signed-off-by: William Tu <u9012063@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25net: ethernet: macb: use phy_ethtool_{get|set}_link_ksettingsPhilippe Reynes1-26/+4
There are two generics functions phy_ethtool_{get|set}_link_ksettings, so we can use them instead of defining the same code in the driver. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25net: ethernet: macb: use phydev from struct net_devicePhilippe Reynes2-16/+13
The private structure contain a pointer to phydev, but the structure net_device already contain such pointer. So we can remove the pointer phydev in the private structure, and update the driver to use the one contained in struct net_device. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25openvswitch: Only set mark and labels with a commit flag.Jarno Rajahalme1-25/+51
Only set conntrack mark or labels when the commit flag is specified. This makes sure we can not set them before the connection has been persisted, as in that case the mark and labels would be lost in an event of an userspace upcall. OVS userspace already requires the commit flag to accept setting ct_mark and/or ct_labels. Validate for this in the kernel API. Signed-off-by: Jarno Rajahalme <jarno@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25openvswitch: Set mark and labels before confirming.Jarno Rajahalme1-19/+14
Set conntrack mark and labels right before committing so that the initial conntrack NEW event has the mark and labels. Signed-off-by: Jarno Rajahalme <jarno@ovn.org> Acked-by: Joe Stringer <joe@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25net: dsa: mv88e6xxx: rename single-chip supportVivien Didelot3-720/+731
With the upcoming support for cross-chip operations, it will be hard to distinguish portions of code supporting a single-chip or a switch fabric of interconnected chips. Make the code clearer now, by renaming the mv88e6xxx_priv_state chip structure to mv88e6xxx_chip. This patch brings no functional changes. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-25net: dsa: mv88e6xxx: move driver in its own folderVivien Didelot7-16/+21
With the upcoming support for cross-chip operations and other mv88e6xxx enhancements, new files will be added. Similarly to mlxsw or b53, move mv88e6xxx files into their own folder. In the meantime, update the MAINTAINERS entry to please checkpatch.pl, by replacing the invalid 88E6352 entry with 88E6XXX, maintained by Andrew and myself. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-23Merge branch 'qed-coalesce'David S. Miller9-5/+360
Sudarsana Reddy Kalluru says: ==================== qed*: coalesce parameters config support. The patch series adds the support for config/read of the adapter coalesce parameters. Patch (1) adds the qed infrastructure/APIs for the support and patch (2) adds the driver support for following ethtool commands: ethtool -c|--show-coalesce ethX ethtool -C|--coalesce ethX [rx-usecs N] [tx-usecs N] ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-23qede: Add support for coalescing config read/update.Sudarsana Reddy Kalluru1-0/+53
Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-23qed: Add support for coalescing config read/update.Sudarsana Reddy Kalluru8-5/+307
This patch adds support for configuring the device tx/rx coalescing timeout values in the order of micro seconds. It also adds APIs for upper layer drivers for reading/updating the coalescing values. Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-23Merge tag 'wireless-drivers-next-for-davem-2016-06-21' of ↵David S. Miller83-1357/+1256
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers patches for 4.8 Major changes: ath10k * enable btcoex support without restarting firmware * enable ipq4019 support using AHB bus * add QCA9887 chipset support * retrieve calibration data from EEPROM, currently only for QCA9887 wil6210 * add pm_notify handling brcmfmac * add support for the PCIE devices 43525 and 43465 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-23net/mlx4_en: Add DCB PFC support through CEE netlink commandsRana Shahout8-14/+331
This patch adds support for reading and updating priority flow control (PFC) attributes in the driver via netlink. Signed-off-by: Rana Shahout <ranas@mellanox.com> Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-23net: dsa: b53: Fix statistics readingsFlorian Fainelli1-1/+1
Due to a typo we would always be using the MIB counter width of the first element of the counter array instead of the current element, and we would always be accessing the register statistics with a 64-bits read, while some could be 32-bits. This got unnoticed in testing with MDIO and SRAB which tolerate doing this, but testing with the SPI bus revealed bogus values being returned. Fix this by using the proper iterator here. Fixes: 967dd82ffc52 ("net: dsa: b53: Add support for Broadcom RoboSwitch") Reported-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-23of_mdio: Enable fixed PHY support if driver is a moduleBen Hutchings2-2/+2
The fixed_phy driver doesn't have to be built-in, and it's important that of_mdio supports it even if it's a module. Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-23ti_cpsw: Check for disabled child nodesBen Hutchings1-1/+1
Dual MAC devices don't necessarily have both MACs wired up, so ignore those that are disabled. Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-22openvswitch: Add packet len info to upcall.William Tu2-1/+14
The commit f2a4d086ed4c ("openvswitch: Add packet truncation support.") introduces packet truncation before sending to userspace upcall receiver. This patch passes up the skb->len before truncation so that the upcall receiver knows the original packet size. Potentially this will be used by sFlow, where OVS translates sFlow config header=N to a sample action, truncating packet to N byte in kernel datapath. Thus, only N bytes instead of full-packet size is copied from kernel to userspace, saving the kernel-to-userspace bandwidth. Signed-off-by: William Tu <u9012063@gmail.com> Cc: Pravin Shelar <pshelar@nicira.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-22net: ethernet: bgmac: use phy_ethtool_{get|set}_link_ksettingsPhilippe Reynes1-18/+2
There are two generics functions phy_ethtool_{get|set}_link_ksettings, so we can use them instead of defining the same code in the driver. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-22net: ethernet: bgmac: use phydev from struct net_devicePhilippe Reynes2-12/+6
The private structure contain a pointer to phydev, but the structure net_device already contain such pointer. So we can remove the pointer phydev in the private structure, and update the driver to use the one contained in struct net_device. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-22net: ethernet: altera_tse: use phy_ethtool_{get|set}_link_ksettingsPhilippe Reynes1-22/+2
There are two generics functions phy_ethtool_{get|set}_link_ksettings, so we can use them instead of defining the same code in the driver. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-22net: ethernet: altera_tse: use phydev from struct net_devicePhilippe Reynes3-14/+9
The private structure contain a pointer to phydev, but the structure net_device already contain such pointer. So we can remove the pointer phydev in the private structure, and update the driver to use the one contained in struct net_device. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-22net: ethernet: sun4i-emac: use phy_ethtool_{get|set}_link_ksettingsPhilippe Reynes1-22/+2
There are two generics functions phy_ethtool_{get|set}_link_ksettings, so we can use them instead of defining the same code in the driver. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-22net: ethernet: sun4i-emac: use phydev from struct net_devicePhilippe Reynes1-20/+14
The private structure contain a pointer to phydev, but the structure net_device already contain such pointer. So we can remove the pointer phydev in the private structure, and update the driver to use the one contained in struct net_device. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-21Merge branch 'mlxsw-next'David S. Miller3-684/+592
Jiri Pirko says: ==================== mlxsw: Preparation for IPv4 router Ido says: This series prepares the driver for IPv4 router support. The router follow-up patches are available at: https://github.com/jpirko/linux_mlxsw/tree/net-next_queue Patches 1-9 simplify the netdevice notification block and also add several checks during PRECHANGEUPPER events against topologies that aren't supported by the device. This will ensure L3 interfaces are only configured on top of valid netdevs. Patches 10-13 contain trivial changes required for the introduction of a generic FID struct - currently only used for vFIDs - in patch 14. Making the FID struct generic will allow us to easily associate the underlying FIDs with their L3-counterparts - Router interfaces (RIFs): FID Type | Used by | RIF Type -------------------------------------------------------- FID | The VLAN-aware bridge | VLAN vFID | VLAN-unaware bridges | FID rFID | non-bridged netdevs (follow-up) | Sub-port Obligatory ASCII art to visualize the above: A.B.C.D + | FID RIF + br0 E.F.G.H + + | | VLAN RIF +---------+---------+ + | | br1.W | vFID | + | | | vPort +-+-+ +-+-+ + swXpY.Z | | | | br1 +-+-+ +-+-+ + | | FID=W | | | +------------+------------+ | | | | +---+---+ +---+-+-+ +---+---+ | | | | | | | | | | | | | | | | | | +-------+ +-------+ +-------+ swXpY Patches 15-16 further generalize the struct by exploiting the fact that the FID is a shared resource among ports. Each FID type is assigned a 'leave' function that is invoked based on CHANGEUPPER events and takes care of the necessary clean-up. Patches 17-22 build upon the previous patches and use the FID struct for the VLAN-aware bridge and take care of cleaning up FID resources in the 'leave' functions. For now, these are only FDB records, but later on we'll have to remove the RIFs associated with these FIDs, which will in turn take care of routes and neighbours clean-up. The last patch adds debug prints that proved very useful during the development of this series. Tested with the existing L2 recipes: https://github.com/jpirko/lnst/tree/master/recipes/switchdev ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-21mlxsw: spectrum: Add debug printsIdo Schimmel2-0/+14
For debug purposes, it's useful to know the order in which the driver responds to changes in the topology of its upper devices. Add debug prints to signal these events. 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>
2016-06-21mlxsw: spectrum: Free resources upon vPort destructionIdo Schimmel2-35/+15
There are situations in which a vPort is destroyed while still holding references to device's resources such as FIDs and FDB records. This can happen, for example, when a VLAN device is deleted while still being bridged. Instead of trying to make sure vPort destruction is invoked when it no longer uses device's resources, just free them upon destruction. This simplifies the code, as we no longer need to take different situations into account when events are received - cleanup is taken care of in one 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>
2016-06-21mlxsw: spectrum: Refactor FDB flushing logicIdo Schimmel3-89/+47
FDB entries are learned using {Port / LAG ID, FID} and therefore should be flushed whenever a port (vPort) leaves its FID (vFID). However, when the bridge port is a LAG device (or a VLAN device on top), then FDB flushing is conditional. Ports removed from such LAG configurations must not trigger flushing, as other ports might still be members in the LAG and therefore the bridge port is still active. The decision whether to flush or not was previously computed in the netdevice notification block, but in order to flush the entries when a port leaves its FID this decision should be computed there. Strip the notification block from this logic and instead move it to one FDB flushing function that is invoked from both the FID / vFID leave functions. When port isn't member in LAG, FDB flushing should always occur. Otherwise, it should occur only when the last port (vPort) member in the LAG leaves the FID (vFID). This will allow us - in the next patch - to simplify the cleanup code paths that are hit whenever the topology above the port netdevs changes. 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>
2016-06-21mlxsw: spectrum: Don't count on FID being presentIdo Schimmel3-8/+11
Not all vPorts will have FIDs assigned to them, so make sure functions first test for FID presence. 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>
2016-06-21mlxsw: spectrum: Add FID get / set functionsIdo Schimmel3-21/+32
As previously explained, not all vPorts will be assigned FIDs, so instead of returning the FID index of a vPort, return a pointer to its FID struct. This will allow us to know whether it's legal to access the vPort's FID parameters such as index and device. 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>
2016-06-21mlxsw: spectrum: Check if port is vPort using its VIDIdo Schimmel1-6/+8
When L3 interfaces will be introduced a vPort won't necessarily have a FID assigned to it. This can happen if it's not member in a bridge (in which case it's assigned a vFID) or doesn't have an IP address (in which case it's assigned an rFID). Therefore, instead check the VID parameter to test whether a port is a vPort or not. 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>
2016-06-21mlxsw: spectrum: Use per-FID struct for the VLAN-aware bridgeIdo Schimmel3-125/+195
In a very similar way to the vFIDs, make the first 4K FIDs - used in the VLAN-aware bridge - use the new FID struct. Upon first use of the FID by any of the ports do the following: 1) Create the FID 2) Setup a matching flooding entry 3) Create a mapping for the FID Unlike vFIDs, upon creation of a FID we always create a global VID-to-FID mapping, so that ports without upper vPorts can use it instead of creating an explicit {Port, VID} to FID mapping. When a port leaves a FID the reverse is performed. Whenever the FID's reference count reaches zero the FID is deleted along with the global mapping. The per-FID struct will later allow us to configure L3 interfaces on top of the VLAN-aware bridge. 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>
2016-06-21mlxsw: spectrum: Remove unused function argumentIdo Schimmel1-6/+3
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>
2016-06-21mlxsw: spectrum: Use join / leave functions for vFID operationsIdo Schimmel1-178/+126
When a vPort is created or when it joins a bridge we always do the same set of operations: 1) Create the vFID, if not already created 2) Setup flooding for the vFID 3) Map the {Port, VID} to the vFID When a vPort is destroyed or when it leaves a bridge the reverse is performed. Encapsulate the above in join / leave functions and simplify the code. FIDs and rFIDs will use a similar set of functions. 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>
2016-06-21mlxsw: spectrum: Make vFID struct genericIdo Schimmel3-150/+131
Up until now we had a dedicated struct only for vFIDs, but before introducing support for L3 interfaces we need to make it generic and use it for all three types of FIDs: 1) FIDs - 0..4K-1, used for the VLAN-aware bridge 2) vFIDs - 4K..15K-1, used for VLAN-unaware bridges 3) rFIDs - 15K..16K-1, used to direct traffic to / from the router in the device. Will be introduced later in the series. The three types of L3 interfaces - Router InterFaces, RIFs - that will be introduced correspond to the three types of FIDs and are configured using them. Therefore, we'll need to store the links between them as well as a reference count on the underlying FID, so that the corresponding RIF will be destroyed when it reaches zero. Note that the lower 0.5K vFIDs are currently used for for non-bridged netdevs, so that traffic could be flooded to the CPU port. However, when rFIDs will be introduced we'll no longer need these and they too will be used for VLAN-unaware bridges. Make the vFID struct generic by renaming it and some of its fields. FIDs will be converted to use it later in the series. 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>
2016-06-21mlxsw: spectrum: Use FID instead of vFID to setup floodingIdo Schimmel3-10/+12
Use a FID index instead of vFID and ease the transition towards a generic FID struct. 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>