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* net: bgmac: Mask interrupts during probeFlorian Fainelli2018-03-291-0/+2
| | | | | | | | | We can have interrupts left enabled form e.g: the bootloader which used the network device for network boot. Make sure we have those disabled as early as possible to avoid spurious interrupts. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bgmac: Use interface name to request interruptFlorian Fainelli2018-03-291-1/+1
| | | | | | | | | When the system contains several BGMAC adapters, it is nice to be able to tell which one is which by looking at /proc/interrupts. Use the network device name as a name to request_irq() with. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: ethernet: nixge: Add support for National Instruments XGE netdevMoritz Fischer2018-03-295-0/+1340
| | | | | | | | | Add support for the National Instruments XGE 1/10G network device. It uses the EEPROM on the board via NVMEM. Signed-off-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: fix flow type handling for RSS filtersEdward Cree2018-03-271-5/+6
| | | | | | | | The FLOW_RSS flag was causing us to insert UDP filters when TCP was wanted. Fixes: 42356d9a137b ("sfc: support RSS spreading of ethtool ntuple filters") Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: protect list of RSS contexts under a mutexEdward Cree2018-03-276-32/+89
| | | | | | | | | | | Otherwise races are possible between ethtool ops and efx_ef10_rx_restore_rss_contexts(). Also, don't try to perform the restore on every reset, only after an MC reboot, otherwise we'll leak RSS contexts on the NIC. Fixes: 42356d9a137b ("sfc: support RSS spreading of ethtool ntuple filters") Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: return a better error if filter insertion collides with MC rebootEdward Cree2018-03-271-0/+7
| | | | | | | | | | | If some other operation gets the MCDI lock ahead of us and performs an MC reboot, then our attempt to insert the filter will fail with EINVAL, because the destination VI (spec->dmaq_id, MC_CMD_FILTER_OP_IN_RX_QUEUE) does not exist. But the caller's request (which might e.g. be an ethtool ntuple request from userland) isn't invalid, it just got unlucky; so return EAGAIN. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: use a semaphore to lock farch filters tooEdward Cree2018-03-272-36/+33
| | | | | | | | With this change, the spinlock efx->filter_lock is no longer used and is thus removed. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: give ef10 its own rwsem in the filter table instead of filter_lockEdward Cree2018-03-273-213/+151
| | | | | | | | efx->filter_lock remains in place for use on farch, but EF10 now ignores it. EFX_EF10_FILTER_FLAG_BUSY is no longer needed, hence it is removed. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: replace asynchronous filter operationsEdward Cree2018-03-278-208/+124
| | | | | | | | | | | | | | | | | | | Instead of having an efx->type->filter_rfs_insert() method, just use workitems with a worker function that calls efx->type->filter_insert(). The only user of this is efx_filter_rfs(), which now queues a call to efx_filter_rfs_work(). Similarly, efx_filter_rfs_expire() is now a worker function called on a new channel->filter_work work_struct, so the method efx->type->filter_rfs_expire_one() is no longer called in atomic context. We also add a new mutex efx->rps_mutex to protect the RPS state (efx-> rps_expire_channel, efx->rps_expire_index, and channel->rps_flow_id) so that the taking of efx->filter_lock can be moved to efx->type->filter_rfs_expire_one(). Thus, all filter table functions are now called in a sleepable context, allowing them to use sleeping locks in a future patch. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Drop pernet_operations::asyncKirill Tkhai2018-03-2711-11/+0
| | | | | | | | Synchronous pernet_operations are not allowed anymore. All are asynchronous. So, drop the structure member. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mvpp2: Use relaxed I/O in data pathYan Markman2018-03-271-13/+30
| | | | | | | | | | | Use relaxed I/O on the hot path. This achieves significant performance improvements. On a 10G link, this makes a basic iperf TCP test go from an average of 4.5 Gbits/sec to about 9.40 Gbits/sec. Signed-off-by: Yan Markman <ymarkman@marvell.com> [Maxime: Commit message, cosmetic changes] Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'mlx5-updates-2018-03-22' of ↵David S. Miller2018-03-2716-79/+396
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== mlx5-updates-2018-03-22 (Misc updates) This series includes misc updates for mlx5 core and netdev dirver, Highlights: From Inbar, three patches to add support for PFC stall prevention statistics and enable/disable through new ethtool tunable, as requested from previous submission. From Moshe, four patches, added more drop counters: - drop counter for netdev steering miss - drop counter for when VF logical link is down - drop counter for when netdev logical link is down. From Or, three patches to support vlan push/pop offload via tc HW action, for newer HW (Connectx-5 and onward) via HW steering flow actions rather than the emulated path for the older HW brands. And five more misc small trivial patches. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * net/mlx5e: Add VLAN offload features to hw_enc_featuresAviv Heller2018-03-261-0/+3
| | | | | | | | | | | | | | | | | | | | | | We support outer VLAN offload in driver and HW regardless of whether an encapsulation is present in the next headers. Exposing this in hw_enc_features will allow us to offload outer VLANs in cases where encapsulation protocols like VXLAN and IPsec are used. Signed-off-by: Aviv Heller <avivh@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5e: Add a helper macro in set features ndoGal Pressman2018-03-261-15/+11
| | | | | | | | | | | | | | | | Add a new macro to prevent copy-pasting the same code for each new feature. Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5e: Make choose LRO timeout function staticGal Pressman2018-03-262-2/+1
| | | | | | | | | | | | | | | | The function is used in en_main.c only, we can make it static and remove its declaration from en.h Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5e: Remove redundant check in get ethtool statsGal Pressman2018-03-261-3/+0
| | | | | | | | | | | | | | | | ethtool core code makes sure data isn't NULL before calling get_ethtool_stats, testing it again in the driver is redundant. Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5: Protect from command bit overflowLeon Romanovsky2018-03-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The system with CONFIG_UBSAN enabled on produces the following error during driver initialization. The reason to it that max_reg_cmds can be larger enough to cause to "1 << max_reg_cmds" overflow the unsigned long. ================================================================================ UBSAN: Undefined behaviour in drivers/net/ethernet/mellanox/mlx5/core/cmd.c:1805:42 signed integer overflow: -2147483648 - 1 cannot be represented in type 'int' CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.15.0-rc2-00032-g06cda2358d9b-dirty #724 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org 04/01/2014 Call Trace: dump_stack+0xe9/0x18f ? dma_virt_alloc+0x81/0x81 ubsan_epilogue+0xe/0x4e handle_overflow+0x187/0x20c mlx5_cmd_init+0x73a/0x12b0 mlx5_load_one+0x1c3d/0x1d30 init_one+0xd02/0xf10 pci_device_probe+0x26c/0x3b0 driver_probe_device+0x622/0xb40 __driver_attach+0x175/0x1b0 bus_for_each_dev+0xef/0x190 bus_add_driver+0x2db/0x490 driver_register+0x16b/0x1e0 __pci_register_driver+0x177/0x1b0 init+0x6d/0x92 do_one_initcall+0x15b/0x270 kernel_init_freeable+0x2d8/0x3d0 kernel_init+0x14/0x190 ret_from_fork+0x24/0x30 ================================================================================ Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5e: Offload tc vlan push/pop using HW actionOr Gerlitz2018-03-263-11/+40
| | | | | | | | | | | | | | | | | | | | | | | | Currently, we are emulating the offload of vlan push/pop actions using global setup as done by commit f5f82476090f ("net/mlx5: E-Switch, Support VLAN actions in the offloads mode"). With newer NICs, we can apply a flow action for that matter, do that while keeping the emulated path for the older HW brands. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5: Add core support for vlan push/pop steering actionOr Gerlitz2018-03-264-5/+14
| | | | | | | | | | | | | | | | | | Newer NICs (ConnectX-5 and onward) can apply vlan pop or push as an action taking place during flow steering. Add the core bits for that. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5: E-Switch, Use same source for offloaded actions checkOr Gerlitz2018-03-261-2/+2
| | | | | | | | | | | | | | | | | | Align the checks for modify header and encap actions with the rest of the code. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5e: Add interface down dropped packets statisticsMoshe Shemesh2018-03-264-29/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Added the following packets drop counter: Rx interface down dropped packets - counts packets which were received while the ETH interface was down. This counter will be shown on ethtool as a new counter called rx_if_down_packets. The implementation allocates a q_counter for drop rq which gets all the received traffic while the interface is down. Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5: Add packet dropped while vport down statisticsMoshe Shemesh2018-03-262-5/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Added the following packets dropped while vport down statistics: Rx dropped while vport down - counts packets which were steered by e-switch to a vport, but dropped since the vport was down. This counter will be shown on ip link tool as part of the vport rx_dropped counter. Tx dropped while vport down - counts packets which were transmitted by a vport, but dropped due to vport logical link down. This counter will be shown on ip link tool as part of the vport tx_dropped counter. The counters are read from FW by command QUERY_VNIC_ENV. Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5e: Add vnic steering drop statisticsMoshe Shemesh2018-03-262-0/+70
| | | | | | | | | | | | | | | | | | | | | | Added the following packets drop counter: Rx steering missed dropped packets - counts packets which were dropped due to miss on NIC rx steering rules. This counter will be shown on ethtool as a new counter called rx_steer_missed_packets. Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5: Add support for QUERY_VNIC_ENV commandMoshe Shemesh2018-03-261-0/+2
| | | | | | | | | | | | | | | | | | Add support for new FW command QUERY_VNIC_ENV. The command is used by the driver to query vnic diagnostic statistics from FW. Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5e: PFC stall prevention supportInbar Karmy2018-03-262-8/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | Implement set/get functions to configure PFC stall prevention timeout by tunables api through ethtool. By default the stall prevention timeout is configured to 8 sec. Timeout range is: 80-8000 msec. Enabling stall prevention with the auto timeout will set the timeout to 100 msec. Signed-off-by: Inbar Karmy <inbark@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
| * net/mlx5e: Expose PFC stall prevention countersInbar Karmy2018-03-262-1/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the needed capability bit and counters to device spec description. Expose the following two counters in ethtool: tx_pause_storm_warning_events: when the device is stalled for a period longer than a pre-configured watermark, the counter increase, allowing the debug utility an insight into current device status. tx_pause_storm_error_events: when the device is stalled for a period longer than a pre-configured timeout, the pause transmission is disabled, and the counter increase. Signed-off-by: Inbar Karmy <inbark@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
* | liquidio: Removed duplicate Tx queue status checkIntiyaz Basha2018-03-272-57/+0
| | | | | | | | | | | | | | | | | | | | | | Napi is checking Tx queue status and waking the Tx queue if required. Same operation is being done while freeing every Tx buffer. So removed the duplicate operation of checking Tx queue status from the Tx buffer free functions. Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: aquantia: Make function hw_atl_utils_mpi_set_speed() staticWei Yongjun2018-03-271-1/+1
| | | | | | | | | | | | | | | | | | | | Fixes the following sparse warning: drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c:508:5: warning: symbol 'hw_atl_utils_mpi_set_speed' was not declared. Should it be static? Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: Don't use dynamic allocs for local variablesMaxime Chevallier2018-03-271-161/+125
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some helper functions that search for given entries in the TCAM filter on PPv2 controller make use of dynamically alloced temporary variables, allocated with GFP_KERNEL. These functions can be called in atomic context, and dynamic alloc is not really needed in these cases anyways. This commit gets rid of dynamic allocs and use stack allocation in the following functions, and where they're used : - mvpp2_prs_flow_find - mvpp2_prs_vlan_find - mvpp2_prs_double_vlan_find - mvpp2_prs_mac_da_range_find For all these functions, instead of returning an temporary object representing the TCAM entry, we simply return the TCAM id that matches the requested entry. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: Make mvpp2_prs_hw_read a parser entry init functionMaxime Chevallier2018-03-271-29/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mvpp2_prs_hw_read function uses the 'index' field of the struct mvpp2_prs_entry to initialize the rest of the fields. This makes it unclear from a caller's perspective, who needs to manipulate a struct that is not entirely initialized. This commit makes it an init function for prs_entry, by passing it the index as a parameter. The function now zeroes the entry, and sets the index field before doing all other init from HW. The function is renamed 'mvpp2_prs_init_from_hw' to make that clear. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch '40GbE' of ↵David S. Miller2018-03-276-122/+181
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Jeff Kirsher says: ==================== 40GbE Intel Wired LAN Driver Updates 2018-03-26 This series contains updates to i40e only. Jake provides several patches which remove the need for cmpxchg64(), starting with moving I40E_FLAG_[UDP]_FILTER_SYNC from pf->flags to pf->state since they are modified during run time possibly when the RTNL lock is not held so they should be a state bits and not flags. Moved additional "flags" which should be state fields, into pf->state. Ensure we hold the RTNL lock for the entire sequence of preparing for reset and when resuming, which will protect the flags related to interrupt scheme under RTNL lock so that their modification is properly threaded. Finally, cleanup the use of cmpxchg64() since it is no longer needed. Cleaned up the holes in the feature flags created my moving some flags to the state field. Björn Töpel adds XDP_REDIRECT support as well as tweaking the page counting for XDP_REDIRECT so that it will function properly. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * | i40e: add support for XDP_REDIRECTBjörn Töpel2018-03-263-10/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver now acts upon the XDP_REDIRECT return action. Two new ndos are implemented, ndo_xdp_xmit and ndo_xdp_flush. XDP_REDIRECT action enables XDP program to redirect frames to other netdevs. Signed-off-by: Björn Töpel <bjorn.topel@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | i40e: tweak page counting for XDP_REDIRECTBjörn Töpel2018-03-261-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit tweaks the page counting for XDP_REDIRECT to function properly. XDP_REDIRECT support will be added in a future commit. The current page counting scheme assumes that the reference count cannot decrease until the received frame is sent to the upper layers of the networking stack. This assumption does not hold for the XDP_REDIRECT action, since a page (pointed out by xdp_buff) can have its reference count decreased via the xdp_do_redirect call. To work around that, we now start off by a large page count and then don't allow a refcount less than two. Signed-off-by: Björn Töpel <bjorn.topel@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | i40e: re-number feature flags to remove gapsJacob Keller2018-03-261-31/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the gaps created by the recent refactor of various feature flags that have moved to the state field. Use only a u32 now that we have fewer than 32 flags in the field. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | i40e: stop using cmpxchg flow in i40e_set_priv_flags()Jacob Keller2018-03-261-14/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the only places which modify flags are either (a) during initialization prior to creating a netdevice, or (b) while holding the rtnl lock, we no longer need the cmpxchg64 call in i40e_set_priv_flags. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | i40e: hold the RTNL lock while changing interrupt schemesJacob Keller2018-03-261-2/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we suspend and resume, we need to clear and re-enable the interrupt scheme. This was previously not done while holding the RTNL lock, which could be problematic, because we are actually destroying and re-creating queues. Hold the RTNL lock for the entire sequence of preparing for reset, and when resuming. This additionally protects the flags related to interrupt scheme under RTNL lock so that their modification is properly threaded. This is part of a larger effort to remove the need for cmpxchg64 in i40e_set_priv_flags(). Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | i40e: move client flags into state bitsJacob Keller2018-03-263-19/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The iWarp client flags are all potentially changed when the RTNL lock is not held, so they should not be part of the pf->flags variable. Instead, move them into the state field so that we can use atomic bit operations. This is part of a larger effort to remove cmpxchg64 in i40e_set_priv_flags() Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | i40e: move I40E_FLAG_TEMP_LINK_POLLING to state fieldJacob Keller2018-03-262-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This flag is modified outside of the RTNL lock and thus should not be part of the pf->flags variable. Use a state bit instead, so that we can use atomic bit operations. This is part of a larger effort to remove cmpxchg64 in i40e_set_priv_flags() Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | i40e: move AUTO_DISABLED flags into the state fieldJacob Keller2018-03-264-26/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The two Flow Directory auto disable flags are used at run time to mark when the flow director features needed to be disabled. Thus the flags could change even when the RTNL lock is not held. They also have some code constructions which really should be test_and_set or test_and_clear using atomic bit operations. Create new state fields to mark this, and stop including them in pf->flags. This is part of a larger effort to remove the need for cmpxchg64 in i40e_set_priv_flags(). Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | i40e: move I40E_FLAG_UDP_FILTER_SYNC to the state fieldJacob Keller2018-03-262-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This flag is modified during run time, possibly even when the RTNL lock is not held. Additionally it has a few places which should be using test_and_set or test_and_clear atomic bit operations. Create a new state bit __I40E_UDP_SYNC_PENDING and use it instead of the ole I40E_FLAG_UDP_FILTER_SYNC flag. This is part of a larger effort to remove the need for using cmpxchg64 in i40e_set_priv_flags. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | i40e: move I40E_FLAG_FILTER_SYNC to a state bitJacob Keller2018-03-262-8/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The I40E_FLAG_FILTER_SYNC flag is modified during run time possibly when the RTNL lock is not held. Thus, it should not be part of pf->flags, and instead should be using atomic bit operations in the pf->state field. Create a __I40E_MACVLAN_SYNC_PENDING state bit, and use it instead of the old I40E_FLAG_FILTER_SYNC flag. This is part of a larger effort to remove the need for cmpxchg64 in i40e_set_priv_flags(). Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | | Merge branch '100GbE' of ↵David S. Miller2018-03-2624-0/+18823
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Jeff Kirsher says: ==================== 100GbE Intel Wired LAN Driver Updates 2018-03-26 This patch series adds the ice driver, which will support the Intel(R) E800 Series of network devices. This is the first phase in the release of this driver where we implement basic transmit and receive. The idea behind the multi-phase release is to aid in code review as well as testing. Subsequent phases will implement advanced features (like SR-IOV, tunnelling, flow director, QoS, etc.) that build upon the previous phase(s). Each phase will be submitted as a patch series. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * | ice: Implement filter sync, NDO operations and bump versionAnirudh Venkataramanan2018-03-269-1/+728
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements multiple pieces of functionality: 1. Added ice_vsi_sync_filters, which is called through the service task to push filter updates to the hardware. 2. Add support to enable/disable promiscuous mode on an interface. Enabling/disabling promiscuous mode on an interface results in addition/removal of a promisc filter rule through ice_vsi_sync_filters. 3. Implement handlers for ndo_set_mac_address, ndo_change_mtu, ndo_poll_controller and ndo_set_rx_mode. This patch also marks the end of the driver addition by bumping up the driver version. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | ice: Support link events, reset and rebuildAnirudh Venkataramanan2018-03-267-6/+681
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Link events are posted to a PF's admin receive queue (ARQ). This patch adds the ability to detect and process link events. This patch also adds the ability to process resets. The driver can process the following resets: 1) EMP Reset (EMPR) 2) Global Reset (GLOBR) 3) Core Reset (CORER) 4) Physical Function Reset (PFR) EMPR is the largest level of reset that the driver can handle. An EMPR resets the manageability block and also the data path, including PHY and link for all the PFs. The affected PFs are notified of this event through a miscellaneous interrupt. GLOBR is a subset of EMPR. It does everything EMPR does except that it doesn't reset the manageability block. CORER is a subset of GLOBR. It does everything GLOBR does but doesn't reset PHY and link. PFR is a subset of CORER and affects only the given physical function. In other words, PFR can be thought of as a CORER for a single PF. Since only the issuing PF is affected, a PFR doesn't result in the miscellaneous interrupt being triggered. All the resets have the following in common: 1) Tx/Rx is halted and all queues are stopped. 2) All the VSIs and filters programmed for the PF are lost and have to be reprogrammed. 3) Control queue interfaces are reset and have to be reprogrammed. In the rebuild flow, control queues are reinitialized, VSIs are reallocated and filters are restored. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | ice: Update Tx scheduler tree for VSI multi-Tx queue supportAnirudh Venkataramanan2018-03-268-3/+1006
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the ability for a VSI to use multiple Tx queues. More specifically, the patch 1) Provides the ability to update the Tx scheduler tree in the firmware. The driver can configure the Tx scheduler tree by adding/removing multiple Tx queues per TC per VSI. 2) Allows a VSI to reconfigure its Tx queues during runtime. 3) Synchronizes the Tx scheduler update operations using locks. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | ice: Add stats and ethtool supportAnirudh Venkataramanan2018-03-269-5/+1828
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements a watchdog task to get packet statistics from the device. This patch also adds support for the following ethtool operations: ethtool devname ethtool -s devname [msglvl N] [msglevel type on|off] ethtool -g|--show-ring devname ethtool -G|--set-ring devname [rx N] [tx N] ethtool -i|--driver devname ethtool -d|--register-dump devname [raw on|off] [hex on|off] [file name] ethtool -k|--show-features|--show-offload devname ethtool -K|--features|--offload devname feature on|off ethtool -P|--show-permaddr devname ethtool -S|--statistics devname ethtool -a|--show-pause devname ethtool -A|--pause devname [autoneg on|off] [rx on|off] [tx on|off] ethtool -r|--negotiate devname CC: Andrew Lunn <andrew@lunn.ch> CC: Jakub Kicinski <kubakici@wp.pl> CC: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | ice: Add support for VLANs and offloadsAnirudh Venkataramanan2018-03-2610-16/+1631
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for VLANs. When a VLAN is created a switch filter is added to direct the VLAN traffic to the corresponding VSI. When a VLAN is deleted, the filter is deleted as well. This patch also adds support for the following hardware offloads. 1) VLAN tag insertion/stripping 2) Receive Side Scaling (RSS) 3) Tx checksum and TCP segmentation 4) Rx checksum Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | ice: Implement transmit and NAPI supportAnirudh Venkataramanan2018-03-265-2/+1171
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements ice_start_xmit (the handler for ndo_start_xmit) and related functions. ice_start_xmit ultimately calls ice_tx_map, where the Tx descriptor is built and posted to the hardware by bumping the ring tail. This patch also implements ice_napi_poll, which is invoked when there's an interrupt on the VSI's queues. The interrupt can be due to either a completed Tx or an Rx event. In case of a completed Tx/Rx event, resources are reclaimed. Additionally, in case of an Rx event, the skb is fetched and passed up to the network stack. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | ice: Configure VSIs for Tx/RxAnirudh Venkataramanan2018-03-2614-6/+2729
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch configures the VSIs to be able to send and receive packets by doing the following: 1) Initialize flexible parser to extract and include certain fields in the Rx descriptor. 2) Add Tx queues by programming the Tx queue context (implemented in ice_vsi_cfg_txqs). Note that adding the queues also enables (starts) the queues. 3) Add Rx queues by programming Rx queue context (implemented in ice_vsi_cfg_rxqs). Note that this only adds queues but doesn't start them. The rings will be started by calling ice_vsi_start_rx_rings on interface up. 4) Configure interrupts for VSI queues. 5) Implement ice_open and ice_stop. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | ice: Add support for switch filter programmingAnirudh Venkataramanan2018-03-267-2/+1935
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A VSI needs traffic directed towards it. This is done by programming filter rules on the switch (embedded vSwitch) element in the hardware, which connects the VSI to the ingress/egress port. This patch introduces data structures and functions necessary to add remove or update switch rules on the switch element. This is a pretty low level function that is generic enough to add a whole range of filters. This patch also introduces two top level functions ice_add_mac and ice_remove mac which through a series of intermediate helper functions eventually call ice_aq_sw_rules to add/delete simple MAC based filters. It's worth noting that one invocation of ice_add_mac/ice_remove_mac is capable of adding/deleting multiple MAC filters. Also worth noting is the fact that the driver maintains a list of currently active filters, so every filter addition/removal causes an update to this list. This is done for a couple of reasons: 1) If two VSIs try to add the same filters, we need to detect it and do things a little differently (i.e. use VSI lists, described below) as the same filter can't be added more than once. 2) In the event of a hardware reset we can simply walk through this list and restore the filters. VSI Lists: In a multi-VSI situation, it's possible that multiple VSIs want to add the same filter rule. For example, two VSIs that want to receive broadcast traffic would both add a filter for destination MAC ff:ff:ff:ff:ff:ff. This can become cumbersome to maintain and so this is handled using a VSI list. A VSI list is resource that can be allocated in the hardware using the ice_aq_alloc_free_res admin queue command. Simply put, a VSI list can be thought of as a subscription list containing a set of VSIs to which the packet should be forwarded, should the filter match. For example, if VSI-0 has already added a broadcast filter, and VSI-1 wants to do the same thing, the filter creation flow will detect this, allocate a VSI list and update the switch rule so that broadcast traffic will now be forwarded to the VSI list which contains VSI-0 and VSI-1. Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-10 19:36:59 +0000