Hi Ivan, On 11/29/2016 09:00 AM, Ivan Khoronzhuk wrote: > This series is intended to allow user to set rate for per channel > shapers at cpdma level. This patchset doesn't have impact on performance. > The rate can be set with: > > echo 100 > /sys/class/net/ethX/queues/tx-0/tx_maxrate > > Tested on am572xx > Based on net-next/master > > Ivan Khoronzhuk (5): > net: ethernet: ti: davinci_cpdma: add weight function for channels > net: ethernet: ti: davinci_cpdma: add set rate for a channel > net: ethernet: ti: cpsw: add .ndo to set per-queue rate > net: ethernet: ti: cpsw: optimize end of poll cycle > net: ethernet: ti: cpsw: split tx budget according between channels > > drivers/net/ethernet/ti/cpsw.c | 264 +++++++++++++++---- > drivers/net/ethernet/ti/davinci_cpdma.c | 453 ++++++++++++++++++++++++++++---- > drivers/net/ethernet/ti/davinci_cpdma.h | 6 + > 3 files changed, 624 insertions(+), 99 deletions(-) > I've just tried net-next on BBB and got below back-trace: INIT: Entering runlevel: 5 Configuring network interfaces... [ 15.018356] net eth0: initializing cpsw version 1.12 (0) [ 15.120153] SMSC LAN8710/LAN8720 4a101000.mdio:00: attached PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=4a101000.mdio:00, irq=-1) [ 15.138578] Division by zero in kernel. [ 15.142667] CPU: 0 PID: 755 Comm: ifconfig Not tainted 4.9.0-rc7-01617-g6ea3f00 #5 [ 15.150277] Hardware name: Generic AM33XX (Flattened Device Tree) [ 15.156399] Backtrace: [ 15.158898] [<c010bbf8>] (dump_backtrace) from [<c010beb4>] (show_stack+0x18/0x1c) [ 15.166508] r7:00000000 r6:600f0013 r5:00000000 r4:c0d395d0 [ 15.172200] [<c010be9c>] (show_stack) from [<c03ce6cc>] (dump_stack+0x8c/0xa0) [ 15.179460] [<c03ce640>] (dump_stack) from [<c010bd60>] (__div0+0x1c/0x20) [ 15.186368] r7:00000000 r6:ddf1c010 r5:00000001 r4:00000001 [ 15.192068] [<c010bd44>] (__div0) from [<c03cd17c>] (Ldiv0+0x8/0x14) [ 15.198503] [<bf07ba38>] (cpsw_split_budget [ti_cpsw]) from [<bf07ee8c>] (cpsw_ndo_open+0x4b8/0x5e4 [ti_cpsw]) [ 15.208554] r10:ddf1c010 r9:00000000 r8:00000000 r7:ddf1c010 r6:dcc88000 r5:dcc88500 [ 15.216418] r4:ddf1c0b0 [ 15.218985] [<bf07e9d4>] (cpsw_ndo_open [ti_cpsw]) from [<c0731c68>] (__dev_open+0xb0/0x114) [ 15.227466] r10:00000000 r9:00000000 r8:00000000 r7:dcc88030 r6:bf080364 r5:00000000 [ 15.235330] r4:dcc88000 [ 15.237880] [<c0731bb8>] (__dev_open) from [<c0731f24>] (__dev_change_flags+0x9c/0x14c) [ 15.245923] r7:00001002 r6:00000001 r5:00001043 r4:dcc88000 [ 15.251613] [<c0731e88>] (__dev_change_flags) from [<c0731ff4>] (dev_change_flags+0x20/0x50) [ 15.260093] r9:00000000 r8:00000000 r7:dcbabf0c r6:00001002 r5:dcc8813c r4:dcc88000 [ 15.267886] [<c0731fd4>] (dev_change_flags) from [<c07a3168>] (devinet_ioctl+0x6d4/0x794) [ 15.276105] r9:00000000 r8:bee8cc64 r7:dcbabf0c r6:00000000 r5:dc921e80 r4:00000000 [ 15.283891] [<c07a2a94>] (devinet_ioctl) from [<c07a54bc>] (inet_ioctl+0x19c/0x1c8) [ 15.291587] r10:00000000 r9:dc920000 r8:bee8cc64 r7:c0d64bc0 r6:bee8cc64 r5:dd2728e0 [ 15.299450] r4:00008914 [ 15.302002] [<c07a5320>] (inet_ioctl) from [<c07112dc>] (sock_ioctl+0x14c/0x300) [ 15.309443] [<c0711190>] (sock_ioctl) from [<c0241868>] (do_vfs_ioctl+0xa8/0x98c) [ 15.316962] r7:00000003 r6:ddf0a780 r5:dd2728e0 r4:bee8cc64 [ 15.322653] [<c02417c0>] (do_vfs_ioctl) from [<c0242188>] (SyS_ioctl+0x3c/0x64) [ 15.330000] r10:00000000 r9:dc920000 r8:bee8cc64 r7:00008914 r6:ddf0a780 r5:00000003 [ 15.337864] r4:ddf0a780 [ 15.340416] [<c024214c>] (SyS_ioctl) from [<c0107d60>] (ret_fast_syscall+0x0/0x3c) [ 15.348024] r9:dc920000 r8:c0107f24 r7:00000036 r6:bee8cf4d r5:bee8ce4c r4:000949f0 [ 15.361174] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready udhcpc (v1.23.1) started -- regards, -grygorii -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
