NFM System Configuration

NFD endpoints：bind endpoint 1 on card 0 to CPU 6
root@ubuntu-PowerEdge-R720:/home/ubuntu# echo -n 6 > /sys/module/nfemsg_nfp/card0endpoint1_counters/cpu_bindbash: echo: write error: Operation not permitted操作失败！
编译测试文件，compile samples/nfm_sample_packet.c
root@ubuntu-PowerEdge-R720:/opt/netronome/samples# gcc -Wall -W -I/opt/netronome/include -O2 \ //-Wall -W 表示显示所有警告信息 //-Ixx增加目录xx，让编译器可以在xx下寻找头文件，-O2 进一步优化。> -L/opt/netronome/lib -W1,-R/opt/netronome/lib \ //-Lxx 表示增加目录xx，让编译器可以在xx下寻找库文件 //-Wl,表示后面的参数将传给link程序ld> -W1,-rpath,/opt/netronome/lib -lnfm_packet -lnfm_error \ //-lxx 表示动态加载libxx.so库> -lpthread -lnfm_error -lnfm_log -lnfm_framework \> -o nfm_sample_packet nfm_sample_packet.c //-o FILE 生成指定的输出文件。用在生成可执行文件时。nfm_sample_packet.c: In function ‘main’:nfm_sample_packet.c:289:20: warning: ‘start_us’ may be used uninitialized in this function [-Wmaybe-uninitialized] unsigned int us = end_us - start_us; ^/usr/bin/ld: cannot find -lnfm_packet/usr/bin/ld: cannot find -lnfm_errorcollect2: error: ld returned 1 exit status出现错误！修改了nfm_sample_packet.c文件后，再编译一次root@ubuntu-PowerEdge-R720:/opt/netronome/samples# gcc -Wall -W -I/opt/netronome/include -O2 -L/opt/netronome/lib -Wl,-R/opt/netronome/lib -Wl,-rpath,/opt/netronome/lib -lnfm_packet -lnfm_error -lpthread -lnfm_error -lnfm_log -lnfm_framework -o nfm_sample_packet nfm_sample_packet.c/usr/bin/ld: cannot find -lnfm_packet/usr/bin/ld: cannot find -lnfm_errorcollect2: error: ld returned 1 exit status发现其他两个错误还是存在。原因：在目录/opt/netronome/lib下确实没找到libnfm_packet和libnfm_error库文件
执行当前目录下makefile文件，显示如下：root@ubuntu-PowerEdge-R720:/opt/netronome/samples# makegcc -o nfm_sample_log nfm_sample_log.c -Wall -W -I/opt/netronome/include -I/opt/netronome/include -O0 -g -ggdb -DDEBUG -lnfp -lns_armctrl //-O0 不进行优化处理。 -g
该选项可以利用操作系统的“原生格式（native format）”生成调试
信息。GDB 可以直接利用这个信息，其它调试器也可以使用这个调试信息
-ggdb
使 GCC 为 GDB 生成专用的更为丰富的调试信息，但是，此时就不能用其
他的调试器来进行调试了 (如 ddx)-L/opt/netronome/lib -L/opt/netronome/lib -lstdc++ -Wl,-R/opt/netronome/lib -Wl,-R/opt/netronome/lib -g -ggdb -lnfm -lpthread/usr/bin/ld: cannot find -lstdc++collect2: error: ld returned 1 exit statusmake: *** [nfm_sample_log] Error 1存在错误。原因：在目录/opt/netronome/lib下确实没找到libstdc++库文件
修改Jumbo frames，[/b]即改变数据帧的尺寸：root@ubuntu-PowerEdge-R720:/opt/netronome/samples# /opt/netronome/bin/nfm-initd.sh stop //关闭NFMStopping Netronome Flow Manager:************** Stop NFM on Wed Jul 8 01:03:14 HKT 2015 ****************--- Disabling trafficDisabling traffic on NFE 0--- Stopping NFM daemons on host--- Stopping the NFM driver--- Stopping the NFD drivers--- Unloading the firmware on NFE 0--- Establishing SSH communication with the ARM on NFE 0--- Stopping daemons on the ARM on NFE 0Stopping nfmmsgd: OKStopping tcammsgd: OK************** Stop complete on Wed Jul 8 01:03:23 HKT 2015 ****************success.root@ubuntu-PowerEdge-R720:/opt/netronome/samples# vi /etc/netronome.conf //使用vi命令编辑netronome.conf 配置文件root@ubuntu-PowerEdge-R720:/opt/netronome/samples# /opt/netronome/bin/nfm-initd.sh start //启动NFMStarting Netronome Flow Manager: nfe_net 13309 0 Attempting SSH to nvn0Starting NFP 0 firmware /lib/firmware/nfm_app_nfp_no_tcam_jumbo.fwsuccess.
验证是否修改成功：root@ubuntu-PowerEdge-R720:/opt/netronome/samples# /opt/netronome/bin/nfmconfignfe.present = 1ports.min = 1ports.max = 2nfe 0 ports.hw_min = 0nfe 0 ports.hw_max = 1ports.switch_tag = 0 (off)nfm.reuse_syn = 1 (RESET)nfm.lb_tuple = TWO_TUPLEnfm.lb_hash = 0 (FLETCHER)nfm.errored_packet = 1 (DELIVER)nfm.default_rule = 1 (PASS)nfm.valhalla_action = 0x0000000000000000nfm.mpls_depth = 6me version word = 0x02070003me revision word = 0x00001e98Microcode supports jumbo frames. //启动成功发现修改成功！