[dpdk-dev] Questions about reading/writing/modifying packet header.

Dear DPDK exports. I am Ick-Sung Choi living in South Korea. Thank you very much for your contributions. I studied a lot from your source codes. However, actually I have a lot of codes/algorithms that I can't understand. The codes seems to be incomplete, but it works in my test case. If I take

[dpdk-dev] Is there any example application to used DPDK packet distributor library?

Dear Reshma. Thank you very much for your answer. I found the related codes. I have done some coding related them and I finished my experiments. Thank you very much. Sincerely Yours, Ick-Sung Choi. -Original Message- From: "Pattan, Reshma" To: "???"

[dpdk-dev] Questions about rte_eth_dev multiple rx queue selection (~/dpdk/lib/librte_ether).

Dear Zhang, Helin. Thank you very much for your advice and answer. I will find it. Thank you very much. Sincerely Yours, Ick-Sung Choi. -Original Message- From: "Zhang, Helin" To: "???"; "dev at dpdk.org"; Cc: Sent: 20

[dpdk-dev] Questions about rte_eth_dev multiple rx queue selection (~/dpdk/lib/librte_ether).

Dear Zhang, Helin. Thank you very much for your advice and answer. I guess RSS queue selection is performed in NIC. Would you tell me more about redirection table? Where can I find reference for it? Thank you very much. Sincerely Yours, Ick-Sung Choi. -Original Message- From: "Zha

[dpdk-dev] Questions about rte_eth_dev multiple rx queue selection (~/dpdk/lib/librte_ether).

Dear Choi, Sy Jong. Thank you very much for your advice and answer. I will read and check it. Sincerely Yours, Ick-Sung Choi. -Original Message- From: "Choi, Sy Jong" To: "???"; "dev at dpdk.org"; Cc: Sent: 2015-11-18 (?

[dpdk-dev] Questions about rte_eth_dev multiple rx queue selection (~/dpdk/lib/librte_ether).

Dear DPDK experts. I really appreciate for your precious answers and advices and thank you for your great contributions. I have questions about rte_eth_dev multiple rx queue usage (~/dpdk/lib/librte_ether). Please let me know, if I am wrong or I have something missed. The applications use rte

[dpdk-dev] Questions about load balancer application in DPDK (~/dpdk.2.0.0/examples/load_balancer).

Dear DPDK experts. I really appreciate for your precious answers and advices and thank you for your great contributions. I have questions about load balancer application in DPDK (~/dpdk.2.0.0/examples/load_balancer). Please let me know, if I am wrong or I have something missed. Question #1) T

[dpdk-dev] How can I run load balancer to configure the example figure 18.5 ?

Dear DPDK experts. Thank you very much for your best great efforts and precious answers. I have a question about execution option for load balancer in ~/dpdk/examples/load_balancer/ How can I run load balancer to configure the figure 18.5 in the http://dpdk.org/doc/guides/sample_app_ug/load_

[dpdk-dev] How can I calculate/estimate pps(packet per seocond) and bps(bit per second) in DPDK pktg

Dear Polehn, Mike A and DPDK experts. Thank you very much for your previous advice and answer. I used the method you proposed. I dont't understand that the data rate includes preamble and inter-packet gap since the preamble and the inter-packet gap are not packet data. There are significant

[dpdk-dev] How can I calculate/estimate pps(packet per seocond) and bps(bit per second) in DPDK pktg

Dear Wiles, Keith , Van Haaren, Harry, Polehn, Mike A, Stephen Hemminger, Kyle Larose, and DPDK experts. I really appreciate for your precious answers and advices. I will find and study the corresponding codes and CRC checking. Last night, I tried to estimate bps and pps by using the fol

[dpdk-dev] How can I calculate/estimate pps(packet per seocond) and bps(bit per second) in DPDK pktg

Dear DPDK experts. Thank you very much for your excellent work and great contributions. I have a question about pps(packet per seocond) and bps(bit per second) estimation in DPDK pktgen. I can't find the source code which calculates pps and bps for received packets in the DPDK pktgen source c

[dpdk-dev] When I run test-pmd, most of received packets(loop-backed packet) have RX-error.

Dear Kyle Larose and Sy Jong Choi. Thank you very much for your precious advices. I found the ierror counting function. It is ixgbe_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) in ~/dpdk/lib/librte_pmd_ixgbe/ixgbe_ethdev.c. The rx-errors are due to IXGBE_MPC errors at r

[dpdk-dev] When I run test-pmd, most of received packets(loop-backed packet) have RX-error.

Dear Choi, Sy Jong. Thank you very much for your precious answers. Sincerely Yours, Ick-Sung Choi. -Original Message- From: "Choi, Sy Jong" To: "???"; "Kyle Larose"; Cc: "dev at dpdk.org"; Sent:

[dpdk-dev] When I run test-pmd, most of received packets(loop-backed packet) have RX-error.

Dear Kyle Larose. Thank you very much for your precious advice and answer. I will try your suggestions. I have a question. Can I use igb_uio driver in DPDK? When I stalled the network device driver in DPDK. I used the following commands and I see that the 10GbE devices have igb_uio device

[dpdk-dev] When I run test-pmd, most of received packets(loop-backed packet) have RX-error.

Dear DPDK experts. Thank you very much for your best great efforts and precious answers. When I run test-pmd, most of received packets are RX-error. The computer has two 10GbE ports Intel NIC and the two ports are loop-backed each other. The result shows that the loop-backed packets have rx-e

[dpdk-dev] Does the DPDK support Ethrenet II foramt frame?

Dear DPDK experts. Thank you very much for your best great efforts and precious answers. I have a question about packet format. Does the DPDK (example applications) support Ethrenet II foramt frame? Thank you very much. Sincerely Yours, Ick-Sung Choi.

[dpdk-dev] I have a problem in setting up DPDK 2.1.0 in Fedora OS release 20 (Heisenbug). I cannot r

Dear DPDK experts. Thank you very much for your best great efforts and precious answers. As you suggested, I reinstalled newer version of Fedora 22. I succeeded to communicate test-pmd in Fedora 22 (linux kernel version 4.2.3-200.fc22.x86_64, DPDK 2.1.0). The steps are as follows. sudo yum

[dpdk-dev] Would you check if there is deadlock in rte_distributor_process() librte_distributor?

Dear DPDK experts. Thank you very much for your excellent work and great contributions. I have a question about distributor library source code. /dpdk/lib/librte_distributor/rte_distributor.c In rte_distributor_process(), rte_distributor_process() { mbufs[] -> d->backlog -> d->bufs } =>

[dpdk-dev] I have a problem in setting up DPDK 2.1.0 in Fedora OS release 20 (Heisenbug). I cannot r

Dear John Manamara and DPDK experts. Thank you very much for your precious advice and answer. I will try to upgrade the OS. I really appreciate to you for your excellent work and great contributions. Sincerely Yours, Ick-Sung Choi. -Original Message- From: "Mcnamara, John"

[dpdk-dev] I have a problem in setting up DPDK 2.1.0 in Fedora OS release 20 (Heisenbug). I cannot r

Dear De Lara Guarch, Pablo. I checked what you mentioned. * Fedora Linux kernel version is as follows. $ uname -r (print kernel name) 3.17.7-200.fc20.x86_64 $ uname -a Linux sdnlab-k01 3.17.7-200.fc20.x86_64 #1 SMP Wed Dec 17 03:35:33 UTC 2014 x86_64 x86_64 x86_64 GNU/Linu

[dpdk-dev] I have a problem in setting up DPDK 2.1.0 in Fedora OS release 20 (Heisenbug). I cannot r

My DPDK setup shell script is as follows. #! /bin/bash ifconfig -a > ifconfig.out.txt sudo ifconfig p785p1 down sudo ifconfig p785p2 down sudo ifconfig p787p1 down sudo ifconfig p787p2 down setup_target() { option

[dpdk-dev] I have a problem in setting up DPDK 2.1.0 in Fedora OS release 20 (Heisenbug). I cannot r

Dear DPDK experts. Thank you very much for your best great efforts and precious answers. I have a problem in setting up DPDK 2.1.0 in Fedora OS release 20 (Heisenbug). My problem is that I cannot receive any traffics in test-pmd. There are 2 nics (2 port NIC), I connected port 0 to port 1(loopb

[dpdk-dev] Question about store_return() in ~/dpdk/lib/librte_distributor/rte_distributor.c

Dear Dr. Bruce Richadson and DPDK experts. Thank you very much for your precious answer and advices. The codes are very well designed, optimized, and programmed by very excellent architect and programmers. The distributor and load balancer are very important functions in network bandwidth exp

[dpdk-dev] Question about store_return() in ~/dpdk/lib/librte_distributor/rte_distributor.c

Dear DPDK experts. Thank you very much for your excellent efforts and contributions. I have a question about store_return() in ~/dpdk/lib/librte_distributor/rte_distributor.c The store_return() function adds a oldbuf packet to d->returns.mbuf[] queue. If the queue is full and the oldbuf packet

[dpdk-dev] Can the dpdk pktgen check the sequence of received packets?

Dear DPDK experts. Thank you very much for your excellent efforts and contributions. I am studying dpdk pktgen. I have a question about sequence checking for received packets in pktgen. Can the dpdk pktgen check the sequence of received TCP packets? Is there any wise way to check the sequence

[dpdk-dev] Question about specifying constant time interval when using rte_get_timer_cycles().

Dear DPDK experts. I have a question about specifying constant time interval when using rte_get_timer_cycles(); Would you let me know how can I specify constant time 30 seconds of DRAIN_TIME? I will really appreciate if let me know. uint64_t now, old, DRAIN_TIME ; DRAIN_TIME = ? // 30 sec

[dpdk-dev] Is there any example application to used DPDK packet distributor library?

Dear Bruce Richardson and DPDK experts. Thank you very much for your the best great efforts and precious answers. I will study and think about it. Thank you very much. Sincerely Yours, Ick-Sung Choi. -Original Message- From: "Bruce Richardson" To: "???"

[dpdk-dev] Is there any example application to used DPDK packet distributor library?

Dear Bruce Richardson and DPDK experts. Thank you very much for your precious answer. I found it. It seems very short and simple. Thank you very much. I have another question. I don't know how the following steps work from new_tag to match variables. /* in dpdk library. ~/dpdk-?.?.?/lib/libr

[dpdk-dev] Is there any example application to used DPDK packet distributor library?

Dear DPDK experts. I am Ick-Sung Choi living in South Korea. I have a question about DPDK? packet distributor library. Is there any example application to used DPDK packet distributor library? I am trying to experiment simple function using DPDK packet distributor library. If I can study an ex

[dpdk-dev] Question about worker assignment in load balancer implementaion in DPDK library example.

Dear DPDK experts. I have a question about load balancer implementaion in DPDK library example. (dpdk-2.0.0/examples/load_balancer) I read from load balancer application user guide that The worker lcore to handle the current packet is determined by reading a predefined 1 byte field from the inp