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path: root/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
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* 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: improve ethernet driver cache footprint by removing an unnecessary ↵Felix Fietkau2014-12-091-22/+25
| | | | | | | | pointer Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 43588
* ag71xx: replace delay with sleep callsJohn Crispin2014-12-071-4/+4
| | | | | | | | | | | | 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
* 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
* ar71xx: disable ethernet descriptor splitting for now, as it seems to cause ↵Felix Fietkau2014-08-301-0/+2
| | | | | | | | tx hangs in some setups Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 42333
* ar71xx: split packets into multiple descriptors on ar716xFelix Fietkau2014-08-291-25/+92
| | | | | | | | | | | This improves performance when doing concurrent rx/tx on a single ethernet MAC, e.g. when routing between VLANs. Fixes #13072 Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 42328
* ar71xx: ag71xx: increase calculated max frame length valueGabor Juhos2014-01-111-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The r39147 commit introduces a regression: at lease on some routers with ar8216 switch large packets get lost if 802.1q tagged port is used on the interface connected to the aforementioned switch. The r39147 changes code in the way so interface is set to accept packets no longer than max ethernet frame length for a given mtu. Unfortunately ar8216 has a feature: it sends two additional bytes as a packet header and those this header needs to be added to the max frame length. Otherwise long enough packets get lost. The problem only manuifests itself if interface is used in vlan tagged mode. If interface is untagged then ar8216's header fits into space used by 802.1q tag and not packets are lost. Include two additional bytes in the max frame length calculation to fix the issue. This patch is tested and works with Trendnet TEW-632BRP. Signed-off-by Nikolay Martynov <mar.kolya@gmail.com> Patchwork: http://patchwork.openwrt.org/patch/4656/ [juhosg: - simplify the patch to include the additional bytes of the switch header unconditionally, - change subject and update commit message] Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 39219
* ar71xx: ag71xx: calculate max frame len register value from the MTUGabor Juhos2013-12-201-3/+15
| | | | | | | | | | | | | | | Set the MAX_FRAME_LEN register to zero in ag71xx_hw_init() and write the correct value into that from the ag71xx_open() and ag71xx_fast_reset() functions. Also recalculate the RX buffer size based on the actual maximum frame length value to optimize memory allocation. Additionaly, disallow to change the MTU value while the interface it running. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 39147
* ar71xx: ag71xx: add ag71xx_max_frame_len() helperGabor Juhos2013-12-201-2/+8
| | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 39146
* ar71xx: ag71xx: get max_frame_len and desc_pktlen_mask from platform dataGabor Juhos2013-12-201-2/+5
| | | | | | | | This will allow to use SoC specific values for both. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 39145
* ar71xx: ag71xx: store descriptor packet length mask in ag71xx structGabor Juhos2013-12-201-2/+4
| | | | | | | | | | | | | | | The currently used bitmask is not correct for all SoCs. Introduce a new field in struct ag71xx and store the bitmask in that. Use the current value for now, it will be adjusted for each SoCs in further patches. Aslo use the new field directly in the ag71xx_rx_packets and ag71xx_hard_start_xmit() functions and remove the ag71xx_desc_pktlen() helper. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 39144
* ar71xx: ag71xx: compute the RX buffer size from the maximum frame sizeGabor Juhos2013-12-171-1/+1
| | | | | | | | | | | | | | | | Currently, the AG71XX_RX_PKT_SIZE value limits the received frame size to 1514/1516 bytes with/without a VLAN header respectively. However the hardware limit is controlled by the value the AG71XX_REG_MAC_MFL register which contains the value of the max_frame_len field. Compute the RX buffer size from the max_frame_len field to get rid of the 1514/1516 byte limitation. Also remove the unused AG71XX_RX_PKT_SIZE definition. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 39121
* ar71xx: ag71xx: store RX buffer size in the ag71xx structGabor Juhos2013-12-171-5/+7
| | | | | | | | This allows to change the value dynamically. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 39120
* ar71xx: ag71xx: store maximum frame length in the ag71xx structGabor Juhos2013-12-171-2/+6
| | | | | | | | | This will allow to use different values for the different SoCs. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 39117
* ar71xx: ag71xx: fix ag71xx_probe error pathGabor Juhos2013-11-111-1/+3
| | | | | | | Signed-off-by: Catalin Patulea <cat@vv.carleton.ca> Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 38716
* ar71xx: ag71xx: fix a race involving netdev registrationGabor Juhos2013-11-081-13/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In particular, phy_connect before register_netdev. This is because register_netdev runs the netdev notifiers, which can race with the rest of the initialization in ag71xx_probe. In my case this manifested in two ways: 1) If ag71xx is compiled as a module and inserted after netifd has started, netifd is notified by register_netdev before the call to ag71xx_phy_connect. netifd tries to bring the interface up, which calls ag71xx_open, which in turn enters ag71xx_phy_start. This keys off ag->phy_dev (which is still NULL) and thinks this is a fixed-link board, and enters ag71xx_link_adjust. This looks at ag->speed which is not yet initialized and hits the BUG() in the switch (ag->speed) in ag71xx_link_adjust. This is the wrong code path for ag71xx_phy_start - my board has PHYs that need to be brought up with phy_start. Doing ag71xx_phy_connect before register_netdev ensures that ag->phy_dev is non-NULL before ag71xx_phy_start is ever called. 2) When ag71xx is built into the kernel, and netconsole is enabled, there is a gap in the initial burst of replayed printks right after the netdev comes up. My assumption is that netconsole is also triggered by a netdev notifier, and part of this printk burst happens before the call into ag71xx_phy_connect, so part of the burst is lost while the PHY comes up. This patch fixes the gap - all the printks before eth0 comes up are bursted in full when netconsole initializes. ag71xx_phy_connect_xxx no longer runs with a registered netdev, so the logging has been adjusted accordingly to avoid "unregistered net_device" or "eth%d" messages in dmesg. Signed-off-by: Catalin Patulea <cat@vv.carleton.ca> Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 38689
* ar71xx: ethernet: cache skb->len in the tx function to avoid accessing it ↵Felix Fietkau2013-08-121-3/+5
| | | | | | | | | | again in completion Improves ethernet performance, especially during bridging Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 37761
* ar71xx: fix typoFelix Fietkau2013-08-121-1/+1
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 37759
* ar71xx: ethernet: skip calls to netdev_completed_queue and netif_wake_queue ↵Felix Fietkau2013-08-121-0/+3
| | | | | | | | if no tx cleanup was done Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 37758
* ar71xx: ethernet: do not update the unused dev->last_rx fieldFelix Fietkau2013-08-121-1/+0
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 37757
* ar71xx: add missing return statement in ethernet mtu change opFelix Fietkau2013-08-121-0/+1
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 37756
* ar71xx: allow mtu > 1500 based on the configured tx/rx mtu register valueFelix Fietkau2013-08-101-1/+10
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 37748
* ar71xx: remove __dev{init,exit} annotations from kernel filesGabor Juhos2013-02-191-4/+4
| | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 35687
* ar71xx: ag71xx: show PHY interface mode in dmesgGabor Juhos2012-12-251-2/+24
| | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 34880
* ar71xx: ag71xx: fix mii_bus_dev sanity checkGabor Juhos2012-12-221-1/+1
| | | | | | | | | | The mii_bus device is not required if phy_mask is zero. The driver will use a fixed connection if it is not specified. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 34849
* ar71xx: ag71xx: fix build_skb arguments for 3.6Gabor Juhos2012-10-271-1/+1
| | | | | | | | Also add a compatibility patch for 3.3 Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 33969
* ar71xx: improve rx performance of the ethernet driver by using build_skb to ↵Felix Fietkau2012-05-281-40/+44
| | | | | | deliver a cache-hot skb to the network stack SVN-Revision: 31934
* kernel: rewrite the phy packet hook, put it in the network stack to avoid ↵Felix Fietkau2012-05-061-26/+14
| | | | | | having to keep non-upstream ethernet driver changes SVN-Revision: 31637
* ar71xx: ag71xx: add BQL supportGabor Juhos2012-02-101-5/+13
| | | | | | | | It will be usable only from linux-3.3. Based on a patch by Dave Taht <dave.taht@bufferbloat.net> SVN-Revision: 30417
* ar71xx: merge files-3.2 to filesGabor Juhos2012-02-101-0/+1258
SVN-Revision: 30405
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