From: Troy Kisky <troy.ki...@boundarydevices.com> Sent: Wednesday, April 06, 2016 10:26 AM > To: netdev@vger.kernel.org; da...@davemloft.net; Fugang Duan > <fugang.d...@nxp.com>; lzn...@gmail.com > Cc: Fabio Estevam <fabio.este...@nxp.com>; l.st...@pengutronix.de; > and...@lunn.ch; trem...@gmail.com; g...@uclinux.org; linux-arm- > ker...@lists.infradead.org; johan...@sipsolutions.net; > stillcompil...@gmail.com; sergei.shtyl...@cogentembedded.com; > a...@arndb.de; Troy Kisky <troy.ki...@boundarydevices.com> > Subject: [PATCH net-next V3 00/16] net: fec: cleanup and fixes > > V3 has > > 1 dropped patch "net: fec: print more debug info in fec_timeout" > 2 new patches > 0002-net-fec-remove-unused-interrupt-FEC_ENET_TS_TIMER.patch > 0003-net-fec-return-IRQ_HANDLED-if-fec_ptp_check_pps_even.patch > > 1 combined patch > 0004-net-fec-pass-rxq-txq-to-fec_enet_rx-tx_queue-instead.patch > > The changes are noted on individual patches > > My measured performance of this series is > > before patch set > 365 Mbits/sec Tx/407 RX > > after patch set > 374 Tx/427 Rx >
I doubt the performance data, I validate it on i.MX6q sabresd board on the latest commit(4da46cebbd3b) in net tree. The test log as below: root@imx6qdlsolo:~# uname -a Linux imx6qdlsolo 4.6.0-rc1-00318-g4da46ce #180 SMP Wed Apr 6 16:24:09 CST 2016 armv7l GNU/Linux root@imx6qdlsolo:~# cat /sys/devices/soc0/soc_id i.MX6Q root@imx6qdlsolo:~# echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor root@imx6qdlsolo:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq 996000 root@imx6qdlsolo:~# iperf -s & [1] 891 root@imx6qdlsolo:~# ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ------------------------------------------------------------ root@imx6qdlsolo:~# [ 4] local 10.192.242.107 port 5001 connected with 10.192.242.248 port 38409 [ ID] Interval Transfer Bandwidth [ 4] 0.0-20.0 sec 1.40 GBytes 602 Mbits/sec root@imx6qdlsolo:~# iperf -c 10.192.242.248 -t 20 ------------------------------------------------------------ Client connecting to 10.192.242.248, TCP port 5001 TCP window size: 43.8 KByte (default) ------------------------------------------------------------ [ 3] local 10.192.242.107 port 52124 connected with 10.192.242.248 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-20.0 sec 776 MBytes 325 Mbits/sec TCP RX performance is 602Mbps, TX is only 325Mbps, TX path has some performance issue in net tree. I will dig out it. > > Troy Kisky (16): > net: fec: only check queue 0 if RXF_0/TXF_0 interrupt is set > net: fec: remove unused interrupt FEC_ENET_TS_TIMER > net: fec: return IRQ_HANDLED if fec_ptp_check_pps_event handled it > net: fec: pass rxq/txq to fec_enet_rx/tx_queue instead of queue_id > net: fec: reduce interrupts > net: fec: split off napi routine with 3 queues > net: fec: don't clear all rx queue bits when just one is being checked > net: fec: set cbd_sc without relying on previous value > net: fec: eliminate calls to fec_enet_get_prevdesc > net: fec: move restart test for efficiency > net: fec: clear cbd_sc after transmission to help with debugging > net: fec: dump all tx queues in fec_dump > net: fec: detect tx int lost > net: fec: create subroutine reset_tx_queue > net: fec: call dma_unmap_single on mapped tx buffers at restart > net: fec: don't set cbd_bufaddr unless no mapping error > > drivers/net/ethernet/freescale/fec.h | 10 +- > drivers/net/ethernet/freescale/fec_main.c | 410 ++++++++++++++++------------ > -- > 2 files changed, 218 insertions(+), 202 deletions(-) > > -- > 2.5.0
