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* ar71xx: fix mii bus irq assignmentFelix Fietkau2018-03-042-3/+3
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ar71xx: remove pdata->fifo_cfg*Felix Fietkau2018-03-041-3/+3
| | | | | | The values are the same for all chipsets that use it Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ar71xx: fix build with ag71xx debugfs support enabledFelix Fietkau2018-02-281-6/+4
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ag71xx: Move timestamp struct member outside of struct.Rosen Penev2018-02-282-4/+3
| | | | | | | | | | | | | | | With this change, the timestamp variable is only used in ag71xx_check_dma_stuck. Small tx speedup. Based on a Qualcomm commit. ag->timestamp = jiffies was not replaced with netif_trans_update(dev) because of this quote: It should be noted that after this series several instances of netif_trans_update() are useless (if they occur in .ndo_start_xmit and driver doesn't set LLTX flag -- stack already did an update). From: http://lists.openwall.net/netdev/2016/05/03/87 Signed-off-by: Rosen Penev <rosenp@gmail.com>
* ar71xx: use global timestamp for hang checkFelix Fietkau2018-02-052-6/+7
| | | | | | | Shrink the size of struct ag71xx_buf to 8 bytes, which improves cache footprint Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ar71xx: only access device stats in tx handler if packets were processedFelix Fietkau2018-02-051-3/+3
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ar71xx: allocate rx/tx descriptor/buffers in one chunkFelix Fietkau2018-02-051-47/+38
| | | | | | Reduces false sharing due to cache aliases Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ag71xx: Reorder ag71xx struct members for better cache performanceRosen Penev2018-02-051-10/+17
| | | | | | | | | | | | | | | Qualcomm claims this improves the D-cache footprint. Origina commit message below: From: Ben Menchaca <ben.menchaca@qca.qualcomm.com> Date: Fri, 7 Jun 2013 10:57:28 -0500 Subject: [ag71xx] cluster/align structs for cache perf Cluster the frequently used, per-packet structures in ag71xx near to each other, and cacheline-align them. Some other re-ordering occurred to move "warmer" structures near the per-packet structures. Signed-off-by: Ben Menchaca <ben.menchaca@qca.qualcomm.com> Signed-off-by: Rosen Penev <rosenp@gmail.com>
* ar71xx: remove obsolete '< KERNEL_VERSION(4, 2, 0)' checkGabor Juhos2018-01-091-7/+0
| | | | | | | | | Because the oldest supported kernel version on the ar71xx target is 4.4, the condition that the kernel version is smaller than 4.2.0 is always false. Remove the obsolete check from ag71xx_main.c to clean up the code a bit. Signed-off-by: Gabor Juhos <juhosg@freemail.hu>
* ag71xx: Fix rx ring buffer stall on small packets flood on qca956x and qca953x.Vittorio Gambaletta2017-12-291-0/+16
| | | | | | Backported from Code Aurora QSDK Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>
* ag71xx: Reduce NAPI weight to 32.Rosen Penev2017-12-081-1/+6
| | | | | | | | | | | | | | Qualcomm claims this reduces cache misses. Original commit message below: From: Ben Menchaca <ben.menchaca@qca.qualcomm.com> Date: Tue, 11 Jun 2013 12:18:46 -0500 Subject: [ag71xx] reduce NAPI weight In an attempt to increase our cache warmth, we are decreasing NAPI. This increases the warmth of the reused SKBs. Signed-off-by: Ben Menchaca <ben.menchaca@qca.qualcomm.com> Signed-off-by: Rosen Penev <rosenp@gmail.com>
* Revert "ag71xx: Switch from driver to kernel macro for NAPI_WEIGHT."Rosen Penev2017-12-083-6/+7
| | | | | | The motivation for this was misguided. It turns out tuning the NAPI weight could be useful for testing purposes. Therefore reverting. Signed-off-by: Rosen Penev <rosenp@gmail.com>
* ag71xx: Switch from driver to kernel macro for NAPI_WEIGHT.Rosen Penev2017-11-063-7/+6
| | | | | | NAPI_POLL_WEIGHT was introduced in the kernel for exactly this purpose 5 years ago. Signed-off-by: Rosen Penev <rosenp@gmail.com>
* Revert "ar71xx: Add GRO support to ag71xx"Felix Fietkau2017-10-171-3/+3
| | | | | | | | | | This reverts commit 13e5e473699b92f171205e0f5c57c9ebe7922492. This commit causes a severe regression in LAN->WAN routing performance for several devices. This appears to be caused by the extra requirement to validate the SKB checksum early in the rx path, which the ethernet hardware does not do Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ar71xx: Add kernel 4.9 supportHauke Mehrtens2017-10-113-64/+72
| | | | | | | | | | | | | This add support for kernel 4.9 to the ar71xx target. It was compile tested with the generic, NAND and mikrotik subtarget. Multiple members of the community tested it on their boards and did not report any major problem so far. Especially the NAND part received some changes to adapt to the new kernel APIs. The serial driver hack used for the Arduino Yun was not ported because the kernel changed there a lot. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
* ar71xx: Add GRO support to ag71xxRosen Penev2017-09-111-3/+3
| | | | | | On a TL-WN710N, this patch increases iperf performance from ~92.5 to ~93.5 mbps. Keep in mind the WN710N is a 100mbps device. I expect greater numbers from gigabit devices. Signed-off-by: Rosen Penev <rosenp@gmail.com>
* ag71xx: add support for port mirroringMilan Krstić2017-07-211-0/+153
| | | | | | | This exposes hardware port mirroring in ag71xx driver (e.g. TL-WR841ND) via swconfig API. Signed-off-by: Milan Krstić <milan.krstic@gmail.com>
* ar71xx/ag71xx_ethtool: don't return uninitialized return value on successAlexander Couzens2017-06-111-1/+1
| | | | | | | | ag71xx_ethtool_set_ringparam() will return an uninitialized value on success. Found-by: Coverity Scan #1330877 Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
* ar71xx/ag71xx_mdio_probe: fix a memory leak when probe failsAlexander Couzens2017-06-111-1/+1
| | | | | Found-by: Coverity Scan #1330233 Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
* ar71xx/ag71xx_ar7240_get_port_link: fix off-by-one check on argument `port`Alexander Couzens2017-06-111-2/+2
| | | | | Found-by: Coverity Scan #1329901 Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
* ar71xx: fix ethernet driver fast reset issue causing tx timeoutsFelix Fietkau2016-09-031-1/+2
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ar71xx: add software transmit timestamp supportStephen Walker2016-07-152-0/+3
| | | | | | Add software transmit timestamp and ethtool (-T) timestamp support Signed-off-by: Stephen Walker <stephendwalker+github@gmail.com>
* ar71xx: prevent spurious ethernet resets from dma hang check false positivesFelix Fietkau2016-07-022-6/+12
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ar71xx: rename ethernet pdata->builtin_switch to use_flow_controlFelix Fietkau2016-06-271-1/+1
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* Revert "ar71xx: prevent spurious ethernet resets from dma hang check false ↵Felix Fietkau2016-06-262-6/+5
| | | | | | positives" This reverts commit 3d58d7f053eae83b59baf5c8b8a58da78653f605.
* ar71xx: prevent spurious ethernet resets from dma hang check false positivesFelix Fietkau2016-06-262-5/+6
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ar71xx: enable flow control for ethernet MACs with built-in switchFelix Fietkau2016-06-261-1/+4
| | | | | | | | Should fix LAN speed issues on some devices. This is an updated version of the previously reverted commit with the same name. It improves the check for MACs connected to a built-in switch Signed-off-by: Felix Fietkau <nbd@nbd.name>
* Revert "ar71xx: enable flow control for ethernet MACs with built-in switch"Felix Fietkau2016-06-141-9/+1
| | | | | | | | This reverts commit 1beb5bec6453abb220c5be4ddb9e6dc02d08d735. It was found to cause the WAN port to fail on some AR934x devices Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ar71xx: enable flow control for ethernet MACs with built-in switchFelix Fietkau2016-06-131-1/+9
| | | | | | Should fix LAN speed issues on some devices Signed-off-by: Felix Fietkau <nbd@nbd.name>
* treewide: replace nbd@openwrt.org with nbd@nbd.nameFelix Fietkau2016-06-071-1/+1
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ar71xx: reset ethernet tx ring on fast reset to prevent packet loss / irq issuesFelix Fietkau2016-02-221-3/+11
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48753
* ag71xx: fix build error with debugfs codeFelix Fietkau2016-02-111-5/+7
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48695
* ag71xx: increase rx ring size to improve performanceFelix Fietkau2016-02-111-2/+2
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48694
* ag71xx: store ring size order instead of ring size to avoid div/modFelix Fietkau2016-02-113-41/+58
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48693
* ag71xx: increase tx ring size to improve performanceFelix Fietkau2016-02-111-2/+2
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48692
* ag71xx: optimize icache footprint of the receive poll functionFelix Fietkau2016-02-111-3/+10
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48691
* ar71xx: use page fragment API in the ethernet driverFelix Fietkau2016-01-311-10/+24
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48578
* ar71xx: fix ethernet MAC reset on DMA hangFelix Fietkau2016-01-131-38/+55
| | | | | | | | | Fully reset the chip like on a full up/down, but without the PHY statemachine restart. Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48228
* ar71xx: extend ethernet DMA stuck check to all ar724x (and newer) chipsFelix Fietkau2016-01-131-1/+1
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48227
* ar71xx: clean up ethernet tx queue after reset, wake queues when done - ↵Felix Fietkau2015-12-141-3/+8
| | | | | | | | fixes hangs reported in #18922 Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 47892
* ar71xx: ag71xx remove IRQF_DISABLEDJohn Crispin2015-07-091-1/+1
| | | | | | | | | | no-op since 2.6.35 removed in Kernel 4.1 see https://lwn.net/Articles/380931/ Signed-off-by: Dirk Neukirchen <dirkneukirchen@web.de> SVN-Revision: 46280
* ar71xx: return limit as number of processed frames when re-scheduling NAPI pollFelix Fietkau2015-06-141-1/+1
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 45971
* ar71xx: fix mv88e6063 compile for 3.14John Crispin2015-02-151-1/+2
| | | | | | Signed-off-by: John Crispin <blogic@openwrt.org> SVN-Revision: 44459
* ar71xx: add v3.18 supportJohn Crispin2015-02-151-0/+16
| | | | | | Signed-off-by: John Crispin <blogic@openwrt.org> SVN-Revision: 44456
* ar71xx: improve ethernet driver cache footprint by removing an unnecessary ↵Felix Fietkau2014-12-093-27/+36
| | | | | | | | pointer Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 43588
* ag71xx: replace delay with sleep callsJohn Crispin2014-12-072-6/+6
| | | | | | | | | | | | I don't see that we're in an atomic context so there's no need to busy-wait. Therefore replace the delay with sleep calls. See also Documentation/timers/timers-howto.txt. It states: "In general, use of mdelay is discouraged and code should be refactored to allow for the use of msleep." Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> SVN-Revision: 43539
* ag71xx: replace fixed PHY reset wait time in ar7240sw_setupJohn Crispin2014-12-071-1/+28
| | | | | | | | | Replace the fixed wait time of 1s with polling for BMCR_RESET to be cleared on all PHYs. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> SVN-Revision: 43538
* ar71xx: ack completed tx descriptors only after the full frame has been ↵Felix Fietkau2014-09-101-10/+16
| | | | | | | | completed Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 42457
* ar71xx: re-enable descriptor splitting on ar716x after the previous bugfixes ↵Felix Fietkau2014-09-061-2/+0
| | | | | | | | (#13072) Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 42429
* ar71xx: fix off-by-one error in packet descriptor splitting (patch from #13072)Felix Fietkau2014-09-061-1/+6
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 42428
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