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* ar71xx: improve ethernet driver cache footprint by removing an unnecessary ↵Felix Fietkau2014-12-091-1/+6
| | | | | | | | pointer Signed-off-by: Felix Fietkau <nbd@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43588 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: on ar716x, split ethernet packets in 512 byte chunks instead of 256 ↵Felix Fietkau2014-09-061-1/+1
| | | | | | | | (improves performance) (patch from #13072) Signed-off-by: Felix Fietkau <nbd@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42427 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: split packets into multiple descriptors on ar716xFelix Fietkau2014-08-291-3/+7
| | | | | | | | | | | 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> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42328 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: ag71xx: store descriptor packet length mask in ag71xx structGabor Juhos2013-12-201-5/+1
| | | | | | | | | | | | | | | 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> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39144 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: ag71xx: compute the RX buffer size from the maximum frame sizeGabor Juhos2013-12-171-2/+0
| | | | | | | | | | | | | | | | 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> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39121 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: ag71xx: store RX buffer size in the ag71xx structGabor Juhos2013-12-171-1/+1
| | | | | | | | This allows to change the value dynamically. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39120 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: ag71xx: store maximum frame length in the ag71xx structGabor Juhos2013-12-171-0/+2
| | | | | | | | | This will allow to use different values for the different SoCs. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39117 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: ethernet: reduce tx dma ring size further to improve cache footprintFelix Fietkau2013-08-131-2/+2
| | | | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37765 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: ethernet: reduce tx and rx DMA ring size to improve cache footprintFelix Fietkau2013-08-121-2/+2
| | | | | | | | 256 entries is a bit excessive, even for gigabit speeds Signed-off-by: Felix Fietkau <nbd@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37762 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: ethernet: cache skb->len in the tx function to avoid accessing it ↵Felix Fietkau2013-08-121-2/+5
| | | | | | | | | | again in completion Improves ethernet performance, especially during bridging Signed-off-by: Felix Fietkau <nbd@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37761 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: improve rx performance of the ethernet driver by using build_skb to ↵Felix Fietkau2012-05-281-1/+5
| | | | | | deliver a cache-hot skb to the network stack git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31934 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: fix MII clock settings for various chips, improves ethernet ↵Felix Fietkau2012-05-271-0/+8
| | | | | | stability on AR934x git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31925 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: remove AG71XX_RX_PKT_RESERVE, it is no longer necessary (found by ↵Felix Fietkau2012-05-151-2/+1
| | | | | | Eric Dumazet) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31736 3c298f89-4303-0410-b956-a3cf2f4a3e73
* ar71xx: merge files-3.2 to filesGabor Juhos2012-02-101-0/+466
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30405 3c298f89-4303-0410-b956-a3cf2f4a3e73