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2018-05-25sfc: stop the TX queue before pushing new buffersMartin Habets1-8/+25
efx_enqueue_skb() can push new buffers for the xmit_more functionality. We must stops the TX queue before this or else the TX queue does not get restarted and we get a netdev watchdog. In the error handling we may now need to unwind more than 1 packet, and we may need to push the new buffers onto the partner queue. v2: In the error leg also push this queue if xmit_more is set Fixes: e9117e5099ea ("sfc: Firmware-Assisted TSO version 2") Reported-by: Jarod Wilson <jarod@redhat.com> Tested-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Martin Habets <mhabets@solarflare.com> Acked-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2-2/+5
Overlapping changes in selftests Makefile. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27sfc: fix ARFS expiry check on EF10Edward Cree1-2/+3
Owing to a missing conditional, the result of rps_may_expire_flow() was being ignored and filters were being removed even if we'd decided not to expire them. Fixes: f8d6203780b7 ("sfc: ARFS filter IDs") Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27sfc: Use filter index rather than ID for rps_flow_id tableEdward Cree1-0/+2
efx->type->filter_insert() returns an ID rather than the index that efx->type->filter_async_insert() used to, which causes it to exceed efx->type->max_rx_ip_filters on some EF10 configurations, leading to out- of-bounds array writes. So, in efx_filter_rfs_work(), convert this back into an index (which is what the remove call in the expiry path expects, anyway). Fixes: 3af0f34290f6 ("sfc: replace asynchronous filter operations") Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller6-46/+337
2018-04-24sfc: ARFS filter IDsEdward Cree6-46/+337
Associate an arbitrary ID with each ARFS filter, allowing to properly query for expiry. The association is maintained in a hash table, which is protected by a spinlock. v3: fix build warnings when CONFIG_RFS_ACCEL is disabled (thanks lkp-robot). v2: fixed uninitialised variable (thanks davem and lkp-robot). Fixes: 3af0f34290f6 ("sfc: replace asynchronous filter operations") Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller4-34/+60
Conflicts were simple overlapping changes in microchip driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-20sfc: set and clear interrupt affinity hintsBert Kenward1-0/+36
Use cpumask_local_spread to provide interrupt affinity hints for each queue. This will spread interrupts across NUMA local CPUs first, extending to remote nodes if needed. Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-17sfc: check RSS is active for filter insertBert Kenward1-2/+2
For some firmware variants - specifically 'capture packed stream' - RSS filters are not valid. We must check if RSS is actually active rather than merely enabled. Fixes: 42356d9a137b ("sfc: support RSS spreading of ethtool ntuple filters") Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-14sfc: limit ARFS workitems in flight per channelEdward Cree2-28/+55
A misconfigured system (e.g. with all interrupts affinitised to all CPUs) may produce a storm of ARFS steering events. With the existing sfc ARFS implementation, that could create a backlog of workitems that grinds the system to a halt. To prevent this, limit the number of workitems that may be in flight for a given SFC device to 8 (EFX_RPS_MAX_IN_FLIGHT), and return EBUSY from our ndo_rx_flow_steer method if the limit is reached. Given this limit, also store the workitems in an array of slots within the struct efx_nic, rather than dynamically allocating for each request. The limit should not negatively impact performance, because it is only likely to be hit in cases where ARFS will be ineffective anyway. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-14sfc: pass the correctly bogus filter_id to rps_may_expire_flow()Edward Cree2-3/+2
When we inserted an ARFS filter for ndo_rx_flow_steer(), we didn't know what the filter ID would be, so we just returned 0. Thus, we must also pass 0 as the filter ID when calling rps_may_expire_flow() for it, and rely on the flow_id to identify what we're talking about. Fixes: 3af0f34290f6 ("sfc: replace asynchronous filter operations") Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-14sfc: insert ARFS filters with replace_equal=trueEdward Cree1-1/+1
Necessary to allow redirecting a flow when the application moves. Fixes: 3af0f34290f6 ("sfc: replace asynchronous filter operations") Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-11Merge tag 'pm-4.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds1-1/+1
Pull more power management updates from Rafael Wysocki: "These include one big-ticket item which is the rework of the idle loop in order to prevent CPUs from spending too much time in shallow idle states. It reduces idle power on some systems by 10% or more and may improve performance of workloads in which the idle loop overhead matters. This has been in the works for several weeks and it has been tested and reviewed quite thoroughly. Also included are changes that finalize the cpufreq cleanup moving frequency table validation from drivers to the core, a few fixes and cleanups of cpufreq drivers, a cpuidle documentation update and a PM QoS core update to mark the expected switch fall-throughs in it. Specifics: - Rework the idle loop in order to prevent CPUs from spending too much time in shallow idle states by making it stop the scheduler tick before putting the CPU into an idle state only if the idle duration predicted by the idle governor is long enough. That required the code to be reordered to invoke the idle governor before stopping the tick, among other things (Rafael Wysocki, Frederic Weisbecker, Arnd Bergmann). - Add the missing description of the residency sysfs attribute to the cpuidle documentation (Prashanth Prakash). - Finalize the cpufreq cleanup moving frequency table validation from drivers to the core (Viresh Kumar). - Fix a clock leak regression in the armada-37xx cpufreq driver (Gregory Clement). - Fix the initialization of the CPU performance data structures for shared policies in the CPPC cpufreq driver (Shunyong Yang). - Clean up the ti-cpufreq, intel_pstate and CPPC cpufreq drivers a bit (Viresh Kumar, Rafael Wysocki). - Mark the expected switch fall-throughs in the PM QoS core (Gustavo Silva)" * tag 'pm-4.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (23 commits) tick-sched: avoid a maybe-uninitialized warning cpufreq: Drop cpufreq_table_validate_and_show() cpufreq: SCMI: Don't validate the frequency table twice cpufreq: CPPC: Initialize shared perf capabilities of CPUs cpufreq: armada-37xx: Fix clock leak cpufreq: CPPC: Don't set transition_latency cpufreq: ti-cpufreq: Use builtin_platform_driver() cpufreq: intel_pstate: Do not include debugfs.h PM / QoS: mark expected switch fall-throughs cpuidle: Add definition of residency to sysfs documentation time: hrtimer: Use timerqueue_iterate_next() to get to the next timer nohz: Avoid duplication of code related to got_idle_tick nohz: Gather tick_sched booleans under a common flag field cpuidle: menu: Avoid selecting shallow states with stopped tick cpuidle: menu: Refine idle state selection for running tick sched: idle: Select idle state before stopping the tick time: hrtimer: Introduce hrtimer_next_event_without() time: tick-sched: Split tick_nohz_stop_sched_tick() cpuidle: Return nohz hint from cpuidle_select() jiffies: Introduce USER_TICK_USEC and redefine TICK_USEC ...
2018-04-11Merge branches 'pm-cpuidle' and 'pm-qos'Rafael J. Wysocki1-1/+1
* pm-cpuidle: tick-sched: avoid a maybe-uninitialized warning cpuidle: Add definition of residency to sysfs documentation time: hrtimer: Use timerqueue_iterate_next() to get to the next timer nohz: Avoid duplication of code related to got_idle_tick nohz: Gather tick_sched booleans under a common flag field cpuidle: menu: Avoid selecting shallow states with stopped tick cpuidle: menu: Refine idle state selection for running tick sched: idle: Select idle state before stopping the tick time: hrtimer: Introduce hrtimer_next_event_without() time: tick-sched: Split tick_nohz_stop_sched_tick() cpuidle: Return nohz hint from cpuidle_select() jiffies: Introduce USER_TICK_USEC and redefine TICK_USEC sched: idle: Do not stop the tick before cpuidle_idle_call() sched: idle: Do not stop the tick upfront in the idle loop time: tick-sched: Reorganize idle tick management code * pm-qos: PM / QoS: mark expected switch fall-throughs
2018-04-06Merge tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtdLinus Torvalds2-20/+2
Pull MTD updates from Boris Brezillon: "MTD Core: - Remove support for asynchronous erase (not implemented by any of the existing drivers anyway) - Remove Cyrille from the list of SPI NOR and MTD maintainers - Fix kernel doc headers - Allow users to define the partitions parsers they want to test through a DT property (compatible of the partitions subnode) - Remove the bfin-async-flash driver (the only architecture using it has been removed) - Fix pagetest test - Add extra checks in mtd_erase() - Simplify the MTD partition creation logic and get rid of mtd_add_device_partitions() MTD Drivers: - Add endianness information to the physmap DT binding - Add Eon EN29LV400A IDs to JEDEC probe logic - Use %*ph where appropriate SPI NOR Drivers: - Make fsl-quaspi assign different names to MTD devices connected to the same QSPI controller - Remove an unneeded driver.bus assigned in the fsl-qspi driver NAND Core: - Prepare arrival of the SPI NAND subsystem by implementing a generic (interface-agnostic) layer to ease manipulation of NAND devices - Move onenand code base to the drivers/mtd/nand/ dir - Rework timing mode selection - Provide a generic way for NAND chip drivers to flag a specific GET/SET FEATURE operation as supported/unsupported - Stop embedding ONFI/JEDEC param page in nand_chip NAND Drivers: - Rework/cleanup of the mxc driver - Various cleanups in the vf610 driver - Migrate the fsmc and vf610 to ->exec_op() - Get rid of the pxa driver (replaced by marvell_nand) - Support ->setup_data_interface() in the GPMI driver - Fix probe error path in several drivers - Remove support for unused hw_syndrome mode in sunxi_nand - Various minor improvements" * tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtd: (89 commits) dt-bindings: fsl-quadspi: Add the example of two SPI NOR mtd: fsl-quadspi: Distinguish the mtd device names mtd: nand: Fix some function description mismatches in core.c mtd: fsl-quadspi: Remove unneeded driver.bus assignment mtd: rawnand: marvell: Rename ->ecc_clk into ->core_clk mtd: rawnand: s3c2410: enhance the probe function error path mtd: rawnand: tango: fix probe function error path mtd: rawnand: sh_flctl: fix the probe function error path mtd: rawnand: omap2: fix the probe function error path mtd: rawnand: mxc: fix probe function error path mtd: rawnand: denali: fix probe function error path mtd: rawnand: davinci: fix probe function error path mtd: rawnand: cafe: fix probe function error path mtd: rawnand: brcmnand: fix probe function error path mtd: rawnand: sunxi: Stop supporting ECC_HW_SYNDROME mode mtd: rawnand: marvell: Fix clock resource by adding a register clock mtd: ftl: Use DIV_ROUND_UP() mtd: Fix some function description mismatches in mtdcore.c mtd: physmap_of: update struct map_info's swap as per map requirement dt-bindings: mtd-physmap: Add endianness supports ...
2018-04-06jiffies: Introduce USER_TICK_USEC and redefine TICK_USECRafael J. Wysocki1-1/+1
Since the subsequent changes will need a TICK_USEC definition analogous to TICK_NSEC, rename the existing TICK_USEC as USER_TICK_USEC, update its users and redefine TICK_USEC accordingly. Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
2018-04-04sfc: remove ctpio_dmabuf_start from statsBert Kenward2-3/+0
The ctpio_dmabuf_start entry is not actually a stat and shouldn't be exposed to ethtool. Fixes: 2c0b6ee837db ("sfc: expose CTPIO stats on NICs that support them") Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-27sfc: fix flow type handling for RSS filtersEdward Cree1-5/+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>
2018-03-27sfc: protect list of RSS contexts under a mutexEdward Cree6-32/+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>
2018-03-27sfc: return a better error if filter insertion collides with MC rebootEdward Cree1-0/+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>
2018-03-27sfc: use a semaphore to lock farch filters tooEdward Cree2-36/+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>
2018-03-27sfc: give ef10 its own rwsem in the filter table instead of filter_lockEdward Cree3-213/+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>
2018-03-27sfc: replace asynchronous filter operationsEdward Cree8-208/+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>
2018-03-26ethernet: Use octal not symbolic permissionsJoe Perches1-1/+1
Prefer the direct use of octal for permissions. Done with checkpatch -f --types=SYMBOLIC_PERMS --fix-inplace and some typing. Miscellanea: o Whitespace neatening around these conversions. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-21mtd: Stop updating erase_info->state and calling mtd_erase_callback()Boris Brezillon2-20/+2
MTD users are no longer checking erase_info->state to determine if the erase operation failed or succeeded. Moreover, mtd_erase_callback() is now a NOP. We can safely get rid of all mtd_erase_callback() calls and all erase_info->state assignments. While at it, get rid of the erase_info->state field, all MTD_ERASE_XXX definitions and the mtd_erase_callback() function. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Richard Weinberger <richard@nod.at> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Bert Kenward <bkenward@solarflare.com> --- Changes in v2: - Address a few coding style issues (reported by Miquel) - Remove comments that are no longer valid (reported by Miquel)
2018-03-14sfc: support FEC configuration through ethtoolEdward Cree3-0/+190
As well as 'auto' and the forced 'off', 'rs' and 'baser' states, we also handle combinations of settings (since the fecparam->fec field is a bitmask), where auto|rs and auto|baser specify a preferred FEC mode but will fall back to the other if the cable or link partner doesn't support it. rs|baser (with or without auto bit) means prefer FEC even where auto wouldn't use it, but let FW choose which encoding to use. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-14sfc: update MCDI protocol headersEdward Cree1-1046/+1776
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08sfc: support RSS spreading of ethtool ntuple filtersEdward Cree9-150/+443
Use a linked list to associate user-facing context IDs with FW-facing context IDs (since the latter can change after an MC reset). Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-26sfc: falcon: remove duplicated bit-wise or of LOOPBACK_SGMIIColin Ian King1-1/+0
Bit pattern LOOPBACK_SGMII is being bit-wise or'd twice; remove the redundant 2nd LOOPBACK_SGMII Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-28sfc: mark some unexported symbols as statickbuild test robot2-3/+3
efx_default_channel_want_txqs() is only used in efx.c, while efx_ptp_want_txqs() and efx_ptp_channel_type (a struct) are only used in ptp.c. In all cases these symbols should be static. Fixes: 2935e3c38228 ("sfc: on 8000 series use TX queues for TX timestamps") Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> [ecree@solarflare.com: rewrote commit message] Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-26sfc: add suffix to large constant in ptpBert Kenward1-1/+1
Fixes: 1280c0f8aafc ("sfc: support second + quarter ns time format for receive datapath") Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25sfc: support Medford2 frequency adjustment formatLaurence Evans1-14/+31
Support increased precision frequency adjustment format (FP44) used by Medford2 adapters. Signed-off-by: Laurence Evans <levans@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25sfc: support second + quarter ns time format for receive datapathEdward Cree1-33/+106
The time_format that we stash in the PTP data structure is never referenced, so we can remove it. Instead, store the information needed to interpret sync event timestamps. Also rolls in a couple of other related minor PTP fixes. Based on patches by Bert Kenward <bkenward@solarflare.com> and Laurence Evans <levans@solarflare.com>. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25sfc: support separate PTP and general timestampingLaurence Evans1-15/+43
Support MC_CMD_PTP_OUT_GET_TIMESTAMP_CORRECTIONS_V2. Extract general timestamp corrections in addition to PTP corrections. Apply receive timestamp corrections for general datapath receive timestamping, and correspondingly for transmit. Signed-off-by: Laurence Evans <levans@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25sfc: simplify RX datapath timestampingLaurence Evans1-8/+5
Use timestamp conversion function with correction to avoid duplicate correction handling. Signed-off-by: Laurence Evans <levans@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25sfc: only advertise TX timestamping if we have the license for itMartin Habets2-1/+16
We check the license for TX hardware timestamping capability. The PTP probe will have enabled PTP sync events from the adapter. If later, at TX queue init, it turns out we do not have the license, we don't need the sync events either. Signed-off-by: Martin Habets <mhabets@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25sfc: on 8000 series use TX queues for TX timestampsEdward Cree6-13/+54
For this we create and use one or more new TX queues on the PTP channel, and enable sync events for it. Based on a patch by Martin Habets <mhabets@solarflare.com>. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25sfc: MAC TX timestamp handling on the 8000 seriesMartin Habets2-2/+46
TX timestamps on 8000 series are supplied from the MAC. This timestamp is only 48 bits long. The high order bits from the last time sync event are used for the top 16 bits. Signed-off-by: Martin Habets <mhabets@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25sfc: only enable TX timestamping if the adapter is licensed for itMartin Habets2-0/+29
If we try to enable the feature and do not have the license for it, the MCPU will refuse and fail our TX queue init. Signed-off-by: Martin Habets <mhabets@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25sfc: use main datapath for HW timestamps if availableMartin Habets2-15/+42
We can now transmit SKBs in 2 ways: 1. Via the MC (for the 7XXX series and earlier), using efx_ptp_xmit_skb_mc(). 2. Via the TX queues on the dedicated PTP channel (8XXX series and later), using efx_ptp_xmit_skb_queue(). The PTP worker thread uses the method set up at probe time. It never checked the return code from the old efx_ptp_xmit_skb(), so it now returns void. We increment the TX dropped counter of the device if the transmit fails. As a result of the probe per channel the remove gets called multiple times. Clean up efx->ptp_data properly to avoid the 2nd call blowing up. Signed-off-by: Martin Habets <mhabets@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25sfc: add function to determine which TX timestamping method to useMartin Habets2-0/+11
Use MC capability MC_CMD_GET_CAPABILITIES_V2_OUT_TX_MAC_TIMESTAMPING to detect whether the NIC supports timestamping packets sent out the main datapath. Signed-off-by: Martin Habets <mhabets@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25sfc: handle TX timestamps in the normal data pathMartin Habets5-9/+119
Before this work, TX timestamping is done by sending each SKB to the MC. On the 8000 series (Medford1) we have high speed timestamping via the MAC, which means we can use normal TX queues for this without a significant drop in bandwidth. On the X2000 series (Medford2) support for transmitting via the MC is removed, so the new way must be used. This patch enables timestamping on a TX queue, if requested. It also enhances TX event handling to process the extra completion events, and puts the time in the SKB. Signed-off-by: Martin Habets <mhabets@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25sfc: remove tx and MCDI handling from NAPI budget considerationBert Kenward2-30/+7
The NAPI budget is only for RX processing work, not other work such as TX or MCDI completion handling. Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-10sfc: add bits for 25/50/100G supported/advertised speedsEdward Cree1-0/+12
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-10sfc: support the ethtool ksettings API properly so that 25/50/100G worksEdward Cree5-83/+92
Store and handle ethtool link mode masks within the driver instead of just a single u32. However, quite a significant amount of existing code wants to manipulate the masks directly, and thus now uses the first unsigned long (i.e. mask[0]) as though it were a legacy u32 mask. This is ok because all the bits that code is interested in are in the first 32 bits of the mask; but it might be a good idea to change them in future to use the proper bitmap API. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-10sfc: basic MCDI mapping of 25/50/100G link speedsEdward Cree1-10/+16
Only handles direct speed setting, not autoneg, because the driver is still trying to pretend it uses the legacy ethtool API which doesn't have advertised/supported bits for 25/50/100G. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-21sfc: expose CTPIO stats on NICs that support themBert Kenward2-0/+67
While the Linux driver doesn't use CTPIO ('cut-through programmed I/O'), other drivers on the same port might, so if we're responsible for reporting per-port stats we need to include the CTPIO stats. Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-21sfc: expose FEC stats on Medford2Edward Cree2-1/+30
There's no explicit capability bit, so we just condition them on having efx->num_mac_stats >= MC_CMD_MAC_NSTATS_V2. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-21sfc: support variable number of MAC statsEdward Cree5-11/+29
Medford2 NICs support more than MC_CMD_MAC_NSTATS stats, and report the new count in a field of MC_CMD_GET_CAPABILITIES_V4. This also means that the end generation count moves (it is, as before, the last 64 bits of the DMA buffer, but that is no longer MC_CMD_MAC_GENERATION_END). So read num_mac_stats from the GET_CAPABILITIES response, if present; otherwise assume MC_CMD_MAC_NSTATS; and always use num_mac_stats - 1 rather than MC_CMD_MAC_GENERATION_END. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-21sfc: update MCDI protocol headersEdward Cree1-144/+2309
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>