Didn't realize attachments were stripped - here is the full text - sorry for the SPAM!
== Full text of the rx checksum issues testing & validation == 0, 8, 16, 24, 28, 30, 31 are okay. Values above 32 are not (tested with 32, 64 and 128) [bmbenson]~/1.3.1.1/DPDK% sudo ./x86_64-default-linuxapp-gcc/app/testpmd -c 0xFF00FF00 -n 4 -b 0000:06:00.0 -- --portmask=0x3 --nb-cores=2 --enable-rx-cksum --disable-hw-vlan --disable-rss --crc-strip --rxd=1024 --txd=1024 -i EAL: coremask set to ff00ff00 EAL: Detected lcore 8 as core 0 on socket 0 EAL: Detected lcore 9 as core 1 on socket 0 EAL: Detected lcore 10 as core 2 on socket 0 EAL: Detected lcore 11 as core 3 on socket 0 EAL: Detected lcore 12 as core 4 on socket 0 EAL: Detected lcore 13 as core 5 on socket 0 EAL: Detected lcore 14 as core 6 on socket 0 EAL: Detected lcore 15 as core 7 on socket 0 EAL: Detected lcore 24 as core 0 on socket 0 EAL: Detected lcore 25 as core 1 on socket 0 EAL: Detected lcore 26 as core 2 on socket 0 EAL: Detected lcore 27 as core 3 on socket 0 EAL: Detected lcore 28 as core 4 on socket 0 EAL: Detected lcore 29 as core 5 on socket 0 EAL: Detected lcore 30 as core 6 on socket 0 EAL: Detected lcore 31 as core 7 on socket 0 EAL: Setting up hugepage memory... EAL: Ask a virtual area of 0x400000000 bytes EAL: Virtual area found at 0x7f17c0000000 (size = 0x400000000) EAL: Requesting 16 pages of size 1024MB from socket 0 EAL: WARNING: Cannot mmap /dev/hpet! The TSC will be used instead. EAL: Master core 8 is ready (tid=dbe54800) EAL: Core 10 is ready (tid=da68f700) EAL: Core 12 is ready (tid=d968d700) EAL: Core 13 is ready (tid=d8e8c700) EAL: Core 24 is ready (tid=d2ffd700) EAL: Core 14 is ready (tid=d3fff700) EAL: Core 25 is ready (tid=d27fc700) EAL: Core 9 is ready (tid=dae90700) EAL: Core 15 is ready (tid=d37fe700) EAL: Core 27 is ready (tid=d17fa700) EAL: Core 28 is ready (tid=d0ff9700) EAL: Core 30 is ready (tid=bf7fe700) EAL: Core 26 is ready (tid=d1ffb700) EAL: Core 29 is ready (tid=bffff700) EAL: Core 11 is ready (tid=d9e8e700) EAL: Core 31 is ready (tid=beffd700) EAL: probe driver: 8086:10d3 rte_em_pmd EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: unbind kernel driver /sys/bus/pci/devices/0000:84:00.0/driver/unbind EAL: bind PCI device 0000:84:00.0 EAL: Device bound EAL: map PCI resource for device 0000:84:00.0 EAL: PCI memory mapped at 0x7f1bdbdf0000 EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: unbind kernel driver /sys/bus/pci/devices/0000:84:00.1/driver/unbind EAL: bind PCI device 0000:84:00.1 EAL: Device bound EAL: map PCI resource for device 0000:84:00.1 EAL: PCI memory mapped at 0x7f1bdbdd0000 Interactive-mode selected Configuring Port 0 PMD: Disable RSC PMD: Saved register RXCSUM:3000 Configuring Port 1 PMD: Disable RSC PMD: Saved register RXCSUM:3000 Checking link statuses... Port 0 Link Up - speed 10000 Mbps - full-duplex Port 1 Link Up - speed 10000 Mbps - full-duplex Done testpmd> set fwd csum Set csum packet forwarding mode testpmd> start csum packet forwarding - CRC stripping enabled - packets/burst=16 nb forwarding cores=2 - nb forwarding ports=2 RX queues=1 - RX desc=1024 - RX free threshold=0 RX threshold registers: pthresh=8 hthresh=8 wthresh=4 TX queues=1 - TX desc=1024 - TX free threshold=0 TX threshold registers: pthresh=36 hthresh=0 wthresh=0 TX RS bit threshold=0 - TXQ flags=0x0 testpmd> stop Telling cores to stop... Waiting for lcores to finish... ---------------------- Forward statistics for port 0 ---------------------- RX-packets: 490511 RX-dropped: 0 RX-total: 490511 Bad-ipcsum: 490496 Bad-l4csum: 0 TX-packets: 488720 TX-dropped: 0 TX-total: 488720 ---------------------------------------------------------------------------- ---------------------- Forward statistics for port 1 ---------------------- RX-packets: 488804 RX-dropped: 0 RX-total: 488804 Bad-ipcsum: 0 Bad-l4csum: 488704 TX-packets: 490511 TX-dropped: 0 TX-total: 490511 ---------------------------------------------------------------------------- +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++ RX-packets: 979315 RX-dropped: 0 RX-total: 979315 TX-packets: 979231 TX-dropped: 0 TX-total: 979231 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Done. [bmbenson]~/1.3.1.1/DPDK% sudo ./x86_64-default-linuxapp-gcc/app/testpmd -c 0xFF00FF00 -n 4 -b 0000:06:00.0 -- --portmask=0x3 --nb-cores=2 --enable-rx-cksum --disable-hw-vlan --disable-rss --crc-strip --rxd=1024 --txd=1024 --rxfreet=16 -i EAL: coremask set to ff00ff00 EAL: Detected lcore 8 as core 0 on socket 0 EAL: Detected lcore 9 as core 1 on socket 0 EAL: Detected lcore 10 as core 2 on socket 0 EAL: Detected lcore 11 as core 3 on socket 0 EAL: Detected lcore 12 as core 4 on socket 0 EAL: Detected lcore 13 as core 5 on socket 0 EAL: Detected lcore 14 as core 6 on socket 0 EAL: Detected lcore 15 as core 7 on socket 0 EAL: Detected lcore 24 as core 0 on socket 0 EAL: Detected lcore 25 as core 1 on socket 0 EAL: Detected lcore 26 as core 2 on socket 0 EAL: Detected lcore 27 as core 3 on socket 0 EAL: Detected lcore 28 as core 4 on socket 0 EAL: Detected lcore 29 as core 5 on socket 0 EAL: Detected lcore 30 as core 6 on socket 0 EAL: Detected lcore 31 as core 7 on socket 0 EAL: Setting up hugepage memory... EAL: Ask a virtual area of 0x400000000 bytes EAL: Virtual area found at 0x7fdc40000000 (size = 0x400000000) EAL: Requesting 16 pages of size 1024MB from socket 0 EAL: WARNING: Cannot mmap /dev/hpet! The TSC will be used instead. EAL: Master core 8 is ready (tid=7476d800) EAL: Core 9 is ready (tid=737a9700) EAL: Core 12 is ready (tid=6bfff700) EAL: Core 15 is ready (tid=70fa4700) EAL: Core 10 is ready (tid=72fa8700) EAL: Core 14 is ready (tid=717a5700) EAL: Core 11 is ready (tid=727a7700) EAL: Core 13 is ready (tid=71fa6700) EAL: Core 27 is ready (tid=69ffb700) EAL: Core 28 is ready (tid=697fa700) EAL: Core 25 is ready (tid=6affd700) EAL: Core 31 is ready (tid=5b7fe700) EAL: Core 24 is ready (tid=6b7fe700) EAL: Core 30 is ready (tid=5bfff700) EAL: Core 29 is ready (tid=68ff9700) EAL: Core 26 is ready (tid=6a7fc700) EAL: probe driver: 8086:10d3 rte_em_pmd EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: unbind kernel driver /sys/bus/pci/devices/0000:84:00.0/driver/unbind EAL: bind PCI device 0000:84:00.0 EAL: Device bound EAL: map PCI resource for device 0000:84:00.0 EAL: PCI memory mapped at 0x7fe074709000 EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: unbind kernel driver /sys/bus/pci/devices/0000:84:00.1/driver/unbind EAL: bind PCI device 0000:84:00.1 EAL: Device bound EAL: map PCI resource for device 0000:84:00.1 EAL: PCI memory mapped at 0x7fe0746e9000 Interactive-mode selected Configuring Port 0 PMD: Disable RSC PMD: Saved register RXCSUM:3000Configuring Port 1 PMD: Disable RSC PMD: Saved register RXCSUM:3000Checking link statuses... Port 0 Link Up - speed 10000 Mbps - full-duplex Port 1 Link Up - speed 10000 Mbps - full-duplex Done testpmd> set fwd csum Set csum packet forwarding mode testpmd> start csum packet forwarding - CRC stripping enabled - packets/burst=16 nb forwarding cores=2 - nb forwarding ports=2 RX queues=1 - RX desc=1024 - RX free threshold=16 RX threshold registers: pthresh=8 hthresh=8 wthresh=4 TX queues=1 - TX desc=1024 - TX free threshold=0 TX threshold registers: pthresh=36 hthresh=0 wthresh=0 TX RS bit threshold=0 - TXQ flags=0x0 testpmd> stop Telling cores to stop... Waiting for lcores to finish... ---------------------- Forward statistics for port 0 ---------------------- RX-packets: 543761 RX-dropped: 0 RX-total: 543761 Bad-ipcsum: 543558 Bad-l4csum: 0 TX-packets: 542023 TX-dropped: 0 TX-total: 542023 ---------------------------------------------------------------------------- ---------------------- Forward statistics for port 1 ---------------------- RX-packets: 542226 RX-dropped: 0 RX-total: 542226 Bad-ipcsum: 0 Bad-l4csum: 542005 TX-packets: 543575 TX-dropped: 0 TX-total: 543575 ---------------------------------------------------------------------------- +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++ RX-packets: 1085987 RX-dropped: 0 RX-total: 1085987 TX-packets: 1085598 TX-dropped: 0 TX-total: 1085598 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Done. testpmd> quit Stopping port 0...done Stopping port 1...done bye... == 32 or more testing == [bmbenson]~/1.3.1.1/DPDK% sudo ./x86_64-default-linuxapp-gcc/app/testpmd -c 0xFF00FF00 -n 4 -b 0000:06:00.0 -- --portmask=0x3 --nb-cores=2 --enable-rx-cksum --disable-hw-vlan --disable-rss --crc-strip --rxd=1024 --txd=1024 --rxfreet=32 -i EAL: coremask set to ff00ff00 EAL: Detected lcore 8 as core 0 on socket 0 EAL: Detected lcore 9 as core 1 on socket 0 EAL: Detected lcore 10 as core 2 on socket 0 EAL: Detected lcore 11 as core 3 on socket 0 EAL: Detected lcore 12 as core 4 on socket 0 EAL: Detected lcore 13 as core 5 on socket 0 EAL: Detected lcore 14 as core 6 on socket 0 EAL: Detected lcore 15 as core 7 on socket 0 EAL: Detected lcore 24 as core 0 on socket 0 EAL: Detected lcore 25 as core 1 on socket 0 EAL: Detected lcore 26 as core 2 on socket 0 EAL: Detected lcore 27 as core 3 on socket 0 EAL: Detected lcore 28 as core 4 on socket 0 EAL: Detected lcore 29 as core 5 on socket 0 EAL: Detected lcore 30 as core 6 on socket 0 EAL: Detected lcore 31 as core 7 on socket 0 EAL: Setting up hugepage memory... EAL: Ask a virtual area of 0x400000000 bytes EAL: Virtual area found at 0x7f6d00000000 (size = 0x400000000) EAL: Requesting 16 pages of size 1024MB from socket 0 EAL: WARNING: Cannot mmap /dev/hpet! The TSC will be used instead. EAL: Master core 8 is ready (tid=581d800) EAL: Core 9 is ready (tid=4859700) EAL: Core 10 is ready (tid=4058700) EAL: Core 12 is ready (tid=3056700) EAL: Core 27 is ready (tid=1052700) EAL: Core 29 is ready (tid=fe7fc700) EAL: Core 24 is ready (tid=2855700) EAL: Core 25 is ready (tid=2054700) EAL: Core 11 is ready (tid=3857700) EAL: Core 30 is ready (tid=fdffb700) EAL: Core 15 is ready (tid=feffd700) EAL: Core 13 is ready (tid=fffff700) EAL: Core 28 is ready (tid=851700) EAL: Core 31 is ready (tid=fd7fa700) EAL: Core 14 is ready (tid=ff7fe700) EAL: Core 26 is ready (tid=1853700) EAL: probe driver: 8086:10d3 rte_em_pmd EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: unbind kernel driver /sys/bus/pci/devices/0000:84:00.0/driver/unbind EAL: bind PCI device 0000:84:00.0 EAL: Device bound EAL: map PCI resource for device 0000:84:00.0 EAL: PCI memory mapped at 0x7f71057b9000 EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: unbind kernel driver /sys/bus/pci/devices/0000:84:00.1/driver/unbind EAL: bind PCI device 0000:84:00.1 EAL: Device bound EAL: map PCI resource for device 0000:84:00.1 EAL: PCI memory mapped at 0x7f7105799000 Interactive-mode selected Configuring Port 0 PMD: Disable RSC PMD: Saved register RXCSUM:3000Configuring Port 1 PMD: Disable RSC PMD: Saved register RXCSUM:3000Checking link statuses... Port 0 Link Up - speed 10000 Mbps - full-duplex Port 1 Link Up - speed 10000 Mbps - full-duplex Done testpmd> set fwd csum Set csum packet forwarding mode testpmd> start csum packet forwarding - CRC stripping enabled - packets/burst=16 nb forwarding cores=2 - nb forwarding ports=2 RX queues=1 - RX desc=1024 - RX free threshold=32 RX threshold registers: pthresh=8 hthresh=8 wthresh=4 TX queues=1 - TX desc=1024 - TX free threshold=0 TX threshold registers: pthresh=36 hthresh=0 wthresh=0 TX RS bit threshold=0 - TXQ flags=0x0 testpmd> stop Telling cores to stop... Waiting for lcores to finish... ---------------------- Forward statistics for port 0 ---------------------- RX-packets: 378894 RX-dropped: 0 RX-total: 378894 Bad-ipcsum: 0 Bad-l4csum: 0 TX-packets: 381197 TX-dropped: 0 TX-total: 381197 ---------------------------------------------------------------------------- ---------------------- Forward statistics for port 1 ---------------------- RX-packets: 381197 RX-dropped: 0 RX-total: 381197 Bad-ipcsum: 0 Bad-l4csum: 0 TX-packets: 378894 TX-dropped: 0 TX-total: 378894 ---------------------------------------------------------------------------- +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++ RX-packets: 760091 RX-dropped: 0 RX-total: 760091 TX-packets: 760091 TX-dropped: 0 TX-total: 760091 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ [bmbenson]~/1.3.1.1/DPDK% sudo ./x86_64-default-linuxapp-gcc/app/testpmd -c 0xFF00FF00 -n 4 -b 0000:06:00.0 -- --portmask=0x3 --nb-cores=2 --enable-rx-cksum --disable-hw-vlan --disable-rss --crc-strip --rxd=1024 --txd=1024 --rxfreet=64 -i EAL: coremask set to ff00ff00 EAL: Detected lcore 8 as core 0 on socket 0 EAL: Detected lcore 9 as core 1 on socket 0 EAL: Detected lcore 10 as core 2 on socket 0 EAL: Detected lcore 11 as core 3 on socket 0 EAL: Detected lcore 12 as core 4 on socket 0 EAL: Detected lcore 13 as core 5 on socket 0 EAL: Detected lcore 14 as core 6 on socket 0 EAL: Detected lcore 15 as core 7 on socket 0 EAL: Detected lcore 24 as core 0 on socket 0 EAL: Detected lcore 25 as core 1 on socket 0 EAL: Detected lcore 26 as core 2 on socket 0 EAL: Detected lcore 27 as core 3 on socket 0 EAL: Detected lcore 28 as core 4 on socket 0 EAL: Detected lcore 29 as core 5 on socket 0 EAL: Detected lcore 30 as core 6 on socket 0 EAL: Detected lcore 31 as core 7 on socket 0 EAL: Setting up hugepage memory... EAL: Ask a virtual area of 0x400000000 bytes EAL: Virtual area found at 0x7f4740000000 (size = 0x400000000) EAL: Requesting 16 pages of size 1024MB from socket 0 EAL: WARNING: Cannot mmap /dev/hpet! The TSC will be used instead. EAL: Master core 8 is ready (tid=75cd2800) EAL: Core 9 is ready (tid=74d0e700) EAL: Core 12 is ready (tid=6bfff700) EAL: Core 11 is ready (tid=73d0c700) EAL: Core 27 is ready (tid=6b7fe700) EAL: Core 29 is ready (tid=6a7fc700) EAL: Core 24 is ready (tid=71d08700) EAL: Core 25 is ready (tid=71507700) EAL: Core 13 is ready (tid=7350b700) EAL: Core 28 is ready (tid=6affd700) EAL: Core 30 is ready (tid=69ffb700) EAL: Core 31 is ready (tid=697fa700) EAL: Core 26 is ready (tid=70d06700) EAL: Core 15 is ready (tid=72509700) EAL: Core 14 is ready (tid=72d0a700) EAL: Core 10 is ready (tid=7450d700) EAL: probe driver: 8086:10d3 rte_em_pmd EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: unbind kernel driver /sys/bus/pci/devices/0000:84:00.0/driver/unbind EAL: bind PCI device 0000:84:00.0 EAL: Device bound EAL: map PCI resource for device 0000:84:00.0 EAL: PCI memory mapped at 0x7f4b75c6e000 EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: unbind kernel driver /sys/bus/pci/devices/0000:84:00.1/driver/unbind EAL: bind PCI device 0000:84:00.1 EAL: Device bound EAL: map PCI resource for device 0000:84:00.1 EAL: PCI memory mapped at 0x7f4b75c4e000 Interactive-mode selected Configuring Port 0 PMD: Disable RSC PMD: Saved register RXCSUM:3000 Configuring Port 1 PMD: Disable RSC PMD: Saved register RXCSUM:3000 Checking link statuses... Port 0 Link Up - speed 10000 Mbps - full-duplex Port 1 Link Up - speed 10000 Mbps - full-duplex Done testpmd> set fwd csum Set csum packet forwarding mode testpmd> testpmd> start csum packet forwarding - CRC stripping enabled - packets/burst=16 nb forwarding cores=2 - nb forwarding ports=2 RX queues=1 - RX desc=1024 - RX free threshold=64 RX threshold registers: pthresh=8 hthresh=8 wthresh=4 TX queues=1 - TX desc=1024 - TX free threshold=0 TX threshold registers: pthresh=36 hthresh=0 wthresh=0 TX RS bit threshold=0 - TXQ flags=0x0 testpmd> stop Telling cores to stop... Waiting for lcores to finish... ---------------------- Forward statistics for port 0 ---------------------- RX-packets: 395534 RX-dropped: 0 RX-total: 395534 Bad-ipcsum: 0 Bad-l4csum: 0 TX-packets: 396814 TX-dropped: 0 TX-total: 396814 ---------------------------------------------------------------------------- ---------------------- Forward statistics for port 1 ---------------------- RX-packets: 396814 RX-dropped: 0 RX-total: 396814 Bad-ipcsum: 0 Bad-l4csum: 0 TX-packets: 395534 TX-dropped: 0 TX-total: 395534 ---------------------------------------------------------------------------- +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++ RX-packets: 792348 RX-dropped: 0 RX-total: 792348 TX-packets: 792348 TX-dropped: 0 TX-total: 792348 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ [bmbenson]~/1.3.1.1/DPDK% sudo ./x86_64-default-linuxapp-gcc/app/testpmd -c 0xFF00FF00 -n 4 -b 0000:06:00.0 -- --portmask=0x3 --nb-cores=2 --enable-rx-cksum --disable-hw-vlan --disable-rss --crc-strip --rxd=1024 --txd=1024 --rxfreet=128 -i [sudo] password for bmbenson: EAL: coremask set to ff00ff00 EAL: Detected lcore 8 as core 0 on socket 0 EAL: Detected lcore 9 as core 1 on socket 0 EAL: Detected lcore 10 as core 2 on socket 0 EAL: Detected lcore 11 as core 3 on socket 0 EAL: Detected lcore 12 as core 4 on socket 0 EAL: Detected lcore 13 as core 5 on socket 0 EAL: Detected lcore 14 as core 6 on socket 0 EAL: Detected lcore 15 as core 7 on socket 0 EAL: Detected lcore 24 as core 0 on socket 0 EAL: Detected lcore 25 as core 1 on socket 0 EAL: Detected lcore 26 as core 2 on socket 0 EAL: Detected lcore 27 as core 3 on socket 0 EAL: Detected lcore 28 as core 4 on socket 0 EAL: Detected lcore 29 as core 5 on socket 0 EAL: Detected lcore 30 as core 6 on socket 0 EAL: Detected lcore 31 as core 7 on socket 0 EAL: Setting up hugepage memory... EAL: Ask a virtual area of 0x400000000 bytes EAL: Virtual area found at 0x7f9f40000000 (size = 0x400000000) EAL: Requesting 16 pages of size 1024MB from socket 0 EAL: WARNING: Cannot mmap /dev/hpet! The TSC will be used instead. EAL: Master core 8 is ready (tid=4d24b800) EAL: Core 9 is ready (tid=4c287700) EAL: Core 10 is ready (tid=4ba86700) EAL: Core 14 is ready (tid=3ffff700) EAL: Core 25 is ready (tid=49a82700) EAL: Core 29 is ready (tid=377fe700) EAL: Core 30 is ready (tid=36ffd700) EAL: Core 15 is ready (tid=3f7fe700) EAL: Core 26 is ready (tid=49281700) EAL: Core 27 is ready (tid=48a80700) EAL: Core 13 is ready (tid=4a283700) EAL: Core 31 is ready (tid=3e7fc700) EAL: Core 11 is ready (tid=4b285700) EAL: Core 12 is ready (tid=4aa84700) EAL: Core 28 is ready (tid=37fff700) EAL: Core 24 is ready (tid=3effd700) EAL: probe driver: 8086:10d3 rte_em_pmd EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: unbind kernel driver /sys/bus/pci/devices/0000:84:00.0/driver/unbind EAL: bind PCI device 0000:84:00.0 EAL: Device bound EAL: map PCI resource for device 0000:84:00.0 EAL: PCI memory mapped at 0x7fa34d1e7000 EAL: probe driver: 8086:10fb rte_ixgbe_pmd EAL: unbind kernel driver /sys/bus/pci/devices/0000:84:00.1/driver/unbind EAL: bind PCI device 0000:84:00.1 EAL: Device bound EAL: map PCI resource for device 0000:84:00.1 EAL: PCI memory mapped at 0x7fa34d1c7000 Interactive-mode selected Configuring Port 0 PMD: Disable RSC PMD: Saved register RXCSUM:3000 Configuring Port 1 PMD: Disable RSC PMD: Saved register RXCSUM:3000 Checking link statuses... Port 0 Link Up - speed 10000 Mbps - full-duplex Port 1 Link Up - speed 10000 Mbps - full-duplex Done testpmd> set fwd csum Set csum packet forwarding mode testpmd> start csum packet forwarding - CRC stripping enabled - packets/burst=16 nb forwarding cores=2 - nb forwarding ports=2 RX queues=1 - RX desc=1024 - RX free threshold=128 RX threshold registers: pthresh=8 hthresh=8 wthresh=4 TX queues=1 - TX desc=1024 - TX free threshold=0 TX threshold registers: pthresh=36 hthresh=0 wthresh=0 TX RS bit threshold=0 - TXQ flags=0x0 testpmd> stop Telling cores to stop... Waiting for lcores to finish... ---------------------- Forward statistics for port 0 ---------------------- RX-packets: 372239 RX-dropped: 0 RX-total: 372239 Bad-ipcsum: 0 Bad-l4csum: 0 TX-packets: 375310 TX-dropped: 0 TX-total: 375310 ---------------------------------------------------------------------------- ---------------------- Forward statistics for port 1 ---------------------- RX-packets: 375310 RX-dropped: 0 RX-total: 375310 Bad-ipcsum: 0 Bad-l4csum: 0 TX-packets: 372239 TX-dropped: 0 TX-total: 372239 ---------------------------------------------------------------------------- +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++ RX-packets: 747549 RX-dropped: 0 RX-total: 747549 TX-packets: 747549 TX-dropped: 0 TX-total: 747549 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Done. ________________________________________ From: dev [dev-boun...@dpdk.org] on behalf of Benson, Bryan Sent: Wednesday, November 06, 2013 7:09 PM To: dev at dpdk.org Subject: Re: [dpdk-dev] RX checksum offloading All, The receive checksum issue seems to be caused by using a RX_FREE_THRESH value that is 32 or larger, as validated by the test-pmd application. I used 2 different packet types - bad IP checksum sent to port 0 and bad tcp checksum to port 1. The way I was sending the packets did not vary between the various tests. Below is a brief summary of the testing - additional gory text is attached. 0, 8, 16, 24, 28, 30, 31 are okay. Values above 32 are not, as tested with 32, 64 and 128. I will continue researching this - The version I used to test this is the vanilla version of DPDK 1.3, but with the RSC disable patch applied (helps when there are many ACKs). Thanks, Bryan Benson [bmbenson]~/1.3.1.1/DPDK% sudo ./x86_64-default-linuxapp-gcc/app/testpmd -c 0xFF00FF00 -n 4 -b 0000:06:00.0 -- --portmask=0x3 --nb-cores=2 --enable-rx-cksum --disable-hw-vlan --disable-rss --crc-strip --rxd=1024 --txd=1024 -i ... <text removed> testpmd> set fwd csum Set csum packet forwarding mode testpmd> start csum packet forwarding - CRC stripping enabled - packets/burst=16 nb forwarding cores=2 - nb forwarding ports=2 RX queues=1 - RX desc=1024 - RX free threshold=0 RX threshold registers: pthresh=8 hthresh=8 wthresh=4 TX queues=1 - TX desc=1024 - TX free threshold=0 TX threshold registers: pthresh=36 hthresh=0 wthresh=0 TX RS bit threshold=0 - TXQ flags=0x0 testpmd> stop Telling cores to stop... Waiting for lcores to finish... ---------------------- Forward statistics for port 0 ---------------------- RX-packets: 490511 RX-dropped: 0 RX-total: 490511 Bad-ipcsum: 490496 Bad-l4csum: 0 TX-packets: 488720 TX-dropped: 0 TX-total: 488720 ---------------------------------------------------------------------------- ---------------------- Forward statistics for port 1 ---------------------- RX-packets: 488804 RX-dropped: 0 RX-total: 488804 Bad-ipcsum: 0 Bad-l4csum: 488704 TX-packets: 490511 TX-dropped: 0 TX-total: 490511 ---------------------------------------------------------------------------- +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++ RX-packets: 979315 RX-dropped: 0 RX-total: 979315 TX-packets: 979231 TX-dropped: 0 TX-total: 979231 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Done. [bmbenson]~/1.3.1.1/DPDK% sudo ./x86_64-default-linuxapp-gcc/app/testpmd -c 0xFF00FF00 -n 4 -b 0000:06:00.0 -- --portmask=0x3 --nb-cores=2 --enable-rx-cksum --disable-hw-vlan --disable-rss --crc-strip --rxd=1024 --txd=1024 --rxfreet=32 -i ... <text removed> testpmd> set fwd csum Set csum packet forwarding mode testpmd> start csum packet forwarding - CRC stripping enabled - packets/burst=16 nb forwarding cores=2 - nb forwarding ports=2 RX queues=1 - RX desc=1024 - RX free threshold=32 RX threshold registers: pthresh=8 hthresh=8 wthresh=4 TX queues=1 - TX desc=1024 - TX free threshold=0 TX threshold registers: pthresh=36 hthresh=0 wthresh=0 TX RS bit threshold=0 - TXQ flags=0x0 testpmd> stop Telling cores to stop... Waiting for lcores to finish... ---------------------- Forward statistics for port 0 ---------------------- RX-packets: 378894 RX-dropped: 0 RX-total: 378894 Bad-ipcsum: 0 Bad-l4csum: 0 TX-packets: 381197 TX-dropped: 0 TX-total: 381197 ---------------------------------------------------------------------------- ---------------------- Forward statistics for port 1 ---------------------- RX-packets: 381197 RX-dropped: 0 RX-total: 381197 Bad-ipcsum: 0 Bad-l4csum: 0 TX-packets: 378894 TX-dropped: 0 TX-total: 378894 ---------------------------------------------------------------------------- +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++ RX-packets: 760091 RX-dropped: 0 RX-total: 760091 TX-packets: 760091 TX-dropped: 0 TX-total: 760091 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
