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* net/mlx4_core: Check device state before unregistering itAlex Vesker2016-07-261-0/+3
| | | | | | | | | | | | Verify that the device state is registered before un-registering it. This check is required to prevent an OOPS on flows that do re-registration of the device and its previous state was unregistered. Fixes: 225c7b1feef1 ("IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters") Signed-off-by: Alex Vesker <valex@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlxsw: spectrum: Fix compilation error when CLS_ACT isn't setIdo Schimmel2016-07-261-6/+5Star
| | | | | | | | | | | | | | | When CONFIG_NET_CLS_ACT isn't set 'struct tcf_exts' has no member named 'actions' and we therefore must not access it. Otherwise compilation fails. Fix this by introducing a new macro similar to tc_no_actions(), which always returns 'false' if CONFIG_NET_CLS_ACT isn't set. Fixes: 763b4b70afcd ("mlxsw: spectrum: Add support in matchall mirror TC offloading") Reported-by: kbuild test robot <fengguang.wu@intel.com> 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>
* net/mlx5e: Query minimum required header copy during xmitHadar Hen Zion2016-07-263-0/+43
| | | | | | | | | | | | | | | | | Add support for query the minimum inline mode from the Firmware. It is required for correct TX steering according to L3/L4 packet headers. Each send queue (SQ) has inline mode that defines the minimal required headers that needs to be copied into the SQ WQE. The driver asks the Firmware for the wqe_inline_mode device capability value. In case the device capability defined as "vport context" the driver must check the reported min inline mode from the vport context before creating its SQs. Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/mlx5e: Check the minimum inline header mode before xmitHadar Hen Zion2016-07-262-4/+46
| | | | | | | | | | | Each send queue (SQ) has inline mode that defines the minimal required inline headers in the SQ WQE. Before sending each packet check that the minimum required headers on the WQE are copied. Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlxsw: spectrum: Add support in matchall mirror TC offloadingYotam Gigi2016-07-252-1/+507
| | | | | | | | | | | | | | | | | | | | | | | | | This patch offloads port mirroring directives to hw using the matchall TC with action mirror. It includes both the implementation of the ndo_setup_tc function for the spectrum driver and the spectrum hardware offload configuration code. The hardware offload code is basically two new functions which are capable of adding and removing a new mirror ports pair. It is done using the MPAT, MPAR and SBIB registers: - A new Switch-Port Analyzer (SPAN) entry is added using MPAT to the 'to' port. - The 'to' port is bound to the SPAN entry using MPAR register. - In case of egress SPAN, the 'to' port gets a new internal shared buffer using SBIB register. In addition, a new database was added to the mlxsw_sp struct to store all the SPAN entries and their bound ports list. The number of supported SPAN entries is determined by resource query. Signed-off-by: Yotam Gigi <yotamg@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlxsw: reg: Add the Monitoring Port Analyzer registerYotam Gigi2016-07-251-0/+67
| | | | | | | | | | | The MPAR register is used to bind ports to a SPAN entry (which was created using MPAT register) and thus mirror their traffic (ingress / egress) to a different port. Signed-off-by: Yotam Gigi <yotamg@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlxsw: reg: Add Monitoring Port Analyzer Table registerYotam Gigi2016-07-251-0/+54
| | | | | | | | | | | | The MPAT register is used to query and configure the Switch Port Analyzer (SPAN) table. This register is used to configure a port as a mirror output port, while after that a mirrored input port can be bound using MPAR register. Signed-off-by: Yotam Gigi <yotamg@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlxsw: reg: Add Shared Buffer Internal Buffer registerYotam Gigi2016-07-251-0/+41
| | | | | | | | | | | The SBIB register configures per port buffer for internal use. This register is used to configure an egress mirror buffer on the egress port which does the mirroring. Signed-off-by: Yotam Gigi <yotamg@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlxsw: pci: Add max span resources to resources queryNogah Frankel2016-07-252-0/+7
| | | | | | | | | Add max span resources to resources query. Signed-off-by: Nogah Frankel <nogahf@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlxsw: pci: Add resources query implementation.Nogah Frankel2016-07-256-3/+109
| | | | | | | | | | Add resources query implementation. If exists, query the HW for its builtin resources instead of having them as consts in the code. Signed-off-by: Nogah Frankel <nogahf@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2016-07-2410-72/+176
|\ | | | | | | | | | | Just several instances of overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx5e: Fix del vxlan port command buffer memsetSaeed Mahameed2016-07-211-2/+2
| | | | | | | | | | | | | | | | memset the command buffers rather than the pointers to them. Fixes: b3f63c3d5e2c ("net/mlx5e: Add netdev support for VXLAN tunneling") Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx4_en: Add resilience in low memory systemsEugenia Emantayev2016-07-203-37/+132
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the lost of Ethernet port on low memory system, when driver frees its resources and fails to allocate new resources. Issue could happen while changing number of channels, rings size or changing the timestamp configuration. This fix is necessary because of removing vmap use in the code. When vmap was in use driver could allocate non-contiguous memory and make it contiguous with vmap. Now it could fail to allocate a large chunk of contiguous memory and lose the port. Current code tries to allocate new resources and then upon success frees the old resources. Fixes: 73898db04301 ('net/mlx4: Avoid wrong virtual mappings') 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>
| * net/mlx4_en: Move filters cleanup to a proper locationEugenia Emantayev2016-07-202-3/+4
| | | | | | | | | | | | | | | | | | | | Filters cleanup should be done once before destroying net device, since filters list is contained in the private data. Fixes: 1eb8c695bda9 ('net/mlx4_en: Add accelerated RFS support') 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>
| * mlxsw: spectrum: Prevent invalid ingress buffer mappingIdo Schimmel2016-07-153-3/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Packets entering the switch are mapped to a Switch Priority (SP) according to their PCP value (untagged frames are mapped to SP 0). The packets are classified to a priority group (PG) buffer in the port's headroom according to their SP. The switch maintains another mapping (SP to IEEE priority), which is used to generate PFC frames for lossless PGs. This mapping is initialized to IEEE = SP % 8. Therefore, when mapping SP 'x' to PG 'y' we create a situation in which an IEEE priority is mapped to two different PGs: IEEE 'x' ---> SP 'x' ---> PG 'y' IEEE 'x' ---> SP 'x + 8' ---> PG '0' (default) Which is invalid, as a flow can use only one PG buffer. Fix this by mapping both SP 'x' and 'x + 8' to the same PG buffer. Fixes: 8e8dfe9fdf06 ("mlxsw: spectrum: Add IEEE 802.1Qaz ETS support") 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>
| * mlxsw: spectrum: Prevent overwrite of DCB capability fieldsIdo Schimmel2016-07-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | The number of supported traffic classes that can have ETS and PFC simultaneously enabled is not subject to user configuration, so make sure we always initialize them to the correct values following a set operation. Fixes: 8e8dfe9fdf06 ("mlxsw: spectrum: Add IEEE 802.1Qaz ETS support") Fixes: d81a6bdb87ce ("mlxsw: spectrum: Add IEEE 802.1Qbb PFC support") 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>
| * mlxsw: spectrum: Don't emit errors when PFC is disabledIdo Schimmel2016-07-151-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | We can't have PAUSE frames and PFC both enabled on the same port, but the fact that ieee_setpfc() was called doesn't necessarily mean PFC is enabled. Only emit errors when PAUSE frames and PFC are enabled simultaneously. Fixes: d81a6bdb87ce ("mlxsw: spectrum: Add IEEE 802.1Qbb PFC support") 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>
| * mlxsw: spectrum: Indicate support for autonegotiationIdo Schimmel2016-07-151-1/+2
| | | | | | | | | | | | | | | | | | | | The device supports link autonegotiation, so let the user know about it by indicating support via ethtool ops. Fixes: 56ade8fe3fe1 ("mlxsw: spectrum: Add initial support for Spectrum ASIC") 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>
| * mlxsw: spectrum: Force link training according to admin stateIdo Schimmel2016-07-151-24/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When setting a new speed we need to disable and enable the port for the changes to take effect. We currently only do that if the operational state of the port is up. However, setting a new speed following link training failure will require us to explicitly set the port down and then up. Instead, disable and enable the port based on its administrative state. Fixes: 56ade8fe3fe1 ("mlxsw: spectrum: Add initial support for Spectrum ASIC") 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>
| * net/mlx5e: start/stop all tx queues upon open/close netdevMohamad Haj Yahia2016-07-131-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Start all tx queues (including inactive ones) when opening the netdev. Stop all tx queues (including inactive ones) when closing the netdev. This is a workaround for the tx timeout watchdog false alarm issue in which the netdev watchdog is polling all the tx queues which may include inactive queues and thus once lowering the real tx queues number (ethtool -L) it will generate tx timeout watchdog false alarms. Fixes: 3947ca185999 ('net/mlx5e: Implement ndo_tx_timeout callback') Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx5e: Fix TX Timeout to detect queues stuck on BQLDaniel Jurgens2016-07-131-1/+1
| | | | | | | | | | | | | | | | | | | | Change netif_tx_queue_stopped to netif_xmit_stopped. This will show when queues are stopped due to byte queue limits. Fixes: 3947ca185999 ('net/mlx5e: Implement ndo_tx_timeout callback') Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_en: use READ_ONCE when freeing xdp_progBrenden Blanco2016-07-211-2/+4
| | | | | | | | | | | | | | | | | | | | For consistency, and in order to hint at the synchronous nature of the xdp_prog field, use READ_ONCE in the destroy path of the ring. All occurrences should now use either READ_ONCE or xchg. Signed-off-by: Brenden Blanco <bblanco@plumgrid.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlxsw: spectrum: Expose per-tc counters via ethtoolIdo Schimmel2016-07-202-1/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | Expose the transmit queue length of each traffic class and the amount of unicast packets discarded due to insufficient room in the shared buffer. The first counter allows us to debug user priority to traffic class mapping, whereas the drop counter is useful when determining shared buffer configuration. 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>
* | mlxsw: spectrum: Expose per-priority counters via ethtoolIdo Schimmel2016-07-201-9/+107
| | | | | | | | | | | | | | | | | | | | | | Expose per-priority bytes / packets / PFC packets counters via ethtool. These counters are very useful when debugging QoS functionality and provide a better insight into the device's forwarding plane. 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>
* | net/mlx5: Use PTR_ERR_OR_ZERO() to simplify the codeWei Yongjun2016-07-201-8/+2Star
| | | | | | | | | | | | | | | | | | | | Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR. Generated by: scripts/coccinelle/api/ptr_ret.cocci Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_en: add xdp forwarding and data write supportBrenden Blanco2016-07-205-8/+211
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A user will now be able to loop packets back out of the same port using a bpf program attached to xdp hook. Updates to the packet contents from the bpf program is also supported. For the packet write feature to work, the rx buffers are now mapped as bidirectional when the page is allocated. This occurs only when the xdp hook is active. When the program returns a TX action, enqueue the packet directly to a dedicated tx ring, so as to avoid completely any locking. This requires the tx ring to be allocated 1:1 for each rx ring, as well as the tx completion running in the same softirq. Upon tx completion, this dedicated tx ring recycles pages without unmapping directly back to the original rx ring. In steady state tx/drop workload, effectively 0 page allocs/frees will occur. In order to separate out the paths between free and recycle, a free_tx_desc func pointer is introduced that is optionally updated whenever recycle_ring is activated. By default the original free function is always initialized. Signed-off-by: Brenden Blanco <bblanco@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_en: break out tx_desc write into separate functionBrenden Blanco2016-07-201-58/+76
| | | | | | | | | | | | | | | | In preparation for writing the tx descriptor from multiple functions, create a helper for both normal and blueflame access. Signed-off-by: Brenden Blanco <bblanco@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_en: add page recycle to prepare rx ring for tx supportBrenden Blanco2016-07-203-10/+109
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mlx4 driver by default allocates order-3 pages for the ring to consume in multiple fragments. When the device has an xdp program, this behavior will prevent tx actions since the page must be re-mapped in TODEVICE mode, which cannot be done if the page is still shared. Start by making the allocator configurable based on whether xdp is running, such that order-0 pages are always used and never shared. Since this will stress the page allocator, add a simple page cache to each rx ring. Pages in the cache are left dma-mapped, and in drop-only stress tests the page allocator is eliminated from the perf report. Note that setting an xdp program will now require the rings to be reconfigured. Before: 26.91% ksoftirqd/0 [mlx4_en] [k] mlx4_en_process_rx_cq 17.88% ksoftirqd/0 [mlx4_en] [k] mlx4_en_alloc_frags 6.00% ksoftirqd/0 [mlx4_en] [k] mlx4_en_free_frag 4.49% ksoftirqd/0 [kernel.vmlinux] [k] get_page_from_freelist 3.21% swapper [kernel.vmlinux] [k] intel_idle 2.73% ksoftirqd/0 [kernel.vmlinux] [k] bpf_map_lookup_elem 2.57% swapper [mlx4_en] [k] mlx4_en_process_rx_cq After: 31.72% swapper [kernel.vmlinux] [k] intel_idle 8.79% swapper [mlx4_en] [k] mlx4_en_process_rx_cq 7.54% swapper [kernel.vmlinux] [k] poll_idle 6.36% swapper [mlx4_core] [k] mlx4_eq_int 4.21% swapper [kernel.vmlinux] [k] tasklet_action 4.03% swapper [kernel.vmlinux] [k] cpuidle_enter_state 3.43% swapper [mlx4_en] [k] mlx4_en_prepare_rx_desc 2.18% swapper [kernel.vmlinux] [k] native_irq_return_iret 1.37% swapper [kernel.vmlinux] [k] menu_select 1.09% swapper [kernel.vmlinux] [k] bpf_map_lookup_elem Signed-off-by: Brenden Blanco <bblanco@plumgrid.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_en: add support for fast rx drop bpf programBrenden Blanco2016-07-203-4/+102
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the BPF_PROG_TYPE_XDP hook in mlx4 driver. In tc/socket bpf programs, helpers linearize skb fragments as needed when the program touches the packet data. However, in the pursuit of speed, XDP programs will not be allowed to use these slower functions, especially if it involves allocating an skb. Therefore, disallow MTU settings that would produce a multi-fragment packet that XDP programs would fail to access. Future enhancements could be done to increase the allowable MTU. The xdp program is present as a per-ring data structure, but as of yet it is not possible to set at that granularity through any ndo. Signed-off-by: Brenden Blanco <bblanco@plumgrid.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlxsw: spectrum_router: Return -ENOENT in case of errorChristophe Jaillet2016-07-151-1/+1
| | | | | | | | | | | | | | | | | | | | 'vr' should be a valid pointer here, so returning 'PTR_ERR(vr)' is wrong. Return an explicit error code (-ENOENT) instead. Fixes: 61c503f976 ("mlxsw: spectrum_router: Implement fib4 add/del switchdev obj ops") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx5e: Add TC offload support for the VF representors netdeviceOr Gerlitz2016-07-141-1/+34
| | | | | | | | | | | | | | | | | | The VF representors support only TC filter/action offloads (not mqprio) and this is enabled for them by default. 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>
* | net/mlx5e: Add TC HW support for FDB (SRIOV e-switch) offloadsOr Gerlitz2016-07-142-6/+34
| | | | | | | | | | | | | | | | | | | | Enhance the TC offload code such that when the eswitch exists and it's mode being SRIOV offloads, we do TC actions parsing and setup targeted for eswitch. Next, we add the offloaded flow to the HW e-switch (fdb). 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>
* | net/mlx5e: Add TC drop and mirred/redirect action parsing for SRIOV offloadsOr Gerlitz2016-07-141-0/+53
| | | | | | | | | | | | | | | | | | | | | | Add the setup code that parses the TC actions needed to support offloading drop and mirred/redirect for SRIOV e-switch. We can redirect between two devices if they belong to the same HW switch, compare the switchdev HW ID attribute to enforce that. 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>
* | net/mlx5e: Adjustments in the TC offload code towards reuse for SRIOVOr Gerlitz2016-07-141-16/+16
| | | | | | | | | | | | | | | | | | | | | | Towards reusing the TC offloads code for an SRIOV use-case, change some of the helper functions to have _nic in their names so it's clear what's NIC unique and what's general. Also group together the NIC related helpers so we can easily branch per the use-case in downstream patch. 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>
* | net/mlx5: E-Switch, Add API to configure rules for the offloaded modeOr Gerlitz2016-07-142-0/+49
| | | | | | | | | | | | | | | | | | | | This allows for upper levels in the driver, e.g the TC offload code to add e-switch offloaded steering rules. The caller provides the rule spec for matching, action, source and destination vports. 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>
* | net/mlx5: E-Switch, Use two priorities for SRIOV offloads modeOr Gerlitz2016-07-143-15/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the offloads mode, some slow path rules are added by the driver (e.g send-to-vport), while offloaded rules are to be added from upper layers. The slow path rules have lower priority and we don't want matching on offloaded rules to suffer from extra steering hops related to the slow path rules. We use two priorities, one for offloaded rules (fast path), and one for the control rules (slow path). To allow for that, we enable two priorities for the FDB namespace in the FS core code. 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>
* | net/mlx5e: Offload TC flow counters only when supportedOr Gerlitz2016-07-141-1/+1
| | | | | | | | | | | | | | | | | | | | Currenly, the code that programs the flow actions into the firmware doesn't check if was actually asked to offload the statistics, fix that. Fixes: aad7e08d39bd ('net/mlx5e: Hardware offloaded flower filter statistics support') 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>
* | net/mlx5: Introduce bulk reading of flow countersAmir Vadai2016-07-143-22/+140
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit utilize the ability of ConnectX-4 to bulk read flow counters. Few bulk counter queries could be done instead of issuing thousands of firmware commands per second to get statistics of all flows set to HW, such as those programmed when we offload tc filters. Counters are stored sorted by hardware id, and queried in blocks (id + number of counters). Due to hardware requirement, start of block and number of counters in a block must be four aligned. Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Amir Vadai <amir@vadai.me> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx5: Store counters in rbtree instead of listAmir Vadai2016-07-142-10/+55
| | | | | | | | | | | | | | | | | | In order to use bulk counters, we need to have counters sorted by id. Signed-off-by: Amir Vadai <amir@vadai.me> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlxsw: core: Trace EMAD messagesJiri Pirko2016-07-121-5/+13
| | | | | | | | | | | | | | | | | | | | | | Trace EMAD messages going down to HW and up from HW. Devlink needs to be registered before EMAD init so the trace function can be called with valid devlink handle. Signed-off-by: Jiri Pirko <jiri@mellanox.com> v1->v2: - Use trace_devlink_hwmsg directly Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2016-07-0610-125/+334
|\| | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/ethernet/mellanox/mlx5/core/en.h drivers/net/ethernet/mellanox/mlx5/core/en_main.c drivers/net/usb/r8152.c All three conflicts were overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx5: Avoid setting unused var when modifying vport node GUIDOr Gerlitz2016-07-051-3/+0Star
| | | | | | | | | | | | | | | | | | GCC complains on unused-but-set-variable, clean this up. Fixes: 23898c763f4a ('net/mlx5: E-Switch, Modify node guid on vf set MAC') Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx5e: Log link state changesShaker Daibes2016-07-011-2/+5
| | | | | | | | | | | | | | | | Add Link UP/Down prints to kernel log when link state changes Signed-off-by: Shaker Daibes <shakerd@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx5e: Validate BW weight values of ETSRana Shahout2016-07-012-3/+6
| | | | | | | | | | | | | | | | | | Valid weight assigned to ETS TClass values are 1-100 Fixes: 08fb1dacdd76 ('net/mlx5e: Support DCBNL IEEE ETS') Signed-off-by: Rana Shahout <ranas@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx5e: Fix select queue callbackRana Shahout2016-07-012-3/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The default fallback function used by mlx5e select queue can return any TX queues in range [0..dev->num_real_tx_queues). The current implementation assumes that the fallback function returns a number in the range [0.. number of channels). Actually dev->num_real_tx_queues = (number of channels) * dev->num_tc; which is more than the expected range if num_tc is configured and could lead to crashes. To fix this we test if num_tc is not configured we can safely return the fallback suggestion, if not we will reciprocal_scale the fallback result and normalize it to the desired range. Fixes: 08fb1dacdd76 ('net/mlx5e: Support DCBNL IEEE ETS') Signed-off-by: Rana Shahout <ranas@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Reported-by: Doug Ledford <dledford@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx5e: Copy all L2 headers into inline segmentMatthew Finlay2016-07-011-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | ConnectX4-Lx uses an inline wqe mode that currently defaults to requiring the entire L2 header be included in the wqe. This patch fixes mlx5e_get_inline_hdr_size() to account for all L2 headers (VLAN, QinQ, etc) using skb_network_offset(skb). Fixes: e586b3b0baee ("net/mlx5: Ethernet Datapath files") Signed-off-by: Matthew Finlay <matt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx5e: Handle RQ flush in error casesDaniel Jurgens2016-07-013-3/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | Add a timeout to avoid an infinite loop waiting for RQ's to flush. This occurs during AER/EEH and will also happen if the device stops posting completions due to internal error or reset, or if moving the RQ to the error state fails. Also cleanup posted receive resources when closing the RQ. Fixes: f62b8bb8f2d3 ('net/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality') Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx5e: Implement ndo_tx_timeout callbackDaniel Jurgens2016-07-012-0/+47
| | | | | | | | | | | | | | | | | | Add callback to handle TX timeouts. Fixes: f62b8bb8f2d3 ('net/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality') Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx5e: Timeout if SQ doesn't flush during closeDaniel Jurgens2016-07-013-3/+56
| | | | | | | | | | | | | | | | | | | | Avoid an infinite loop by timing out waiting for the SQ to flush. Also clean up the TX descriptors if that happens. Fixes: f62b8bb8f2d3 ('net/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality') Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx5: Add timeout handle to commands with callbackMohamad Haj Yahia2016-07-011-7/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current implementation does not handle timeout in case of command with callback request, and this can lead to deadlock if the command doesn't get fw response. Add delayed callback timeout work before posting the command to fw. In case of real fw command completion we will cancel the delayed work. In case of fw command timeout the callback timeout handler will be called and it will simulate fw completion with timeout error. Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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