DPDK usage discussions
 help / color / mirror / Atom feed
From: Anna A <pacman.n908@gmail.com>
To: users@dpdk.org
Subject: Using rte_flow to distribute single flow type among multiple Rx queues using DPDK in Mellanox ConnectX-5 Ex
Date: Tue, 28 Sep 2021 22:26:43 -0700
Message-ID: <CALgGc3UAerQXBwLOMao3ehtaCS7UptgiKzR0yuXF=3jke-8QwQ@mail.gmail.com> (raw)


I'm trying to use rte_flow_action_type_rss to distribute packets all of the
same flow type among multiple Rx queues on a single port. Mellanox
ConnectX-5 Ex and DPDK version 20.05 is used for this purpose. It doesn't
seem to work and all the packets are sent only to a single queue.
My queries are :
1. What am I missing or doing differently?
2. Should I be doing any other configurations in rte_eth_conf or

My rte_flow configurations:

    struct rte_flow_item pattern[MAX_RTE_FLOW_PATTERN] = {};
    struct rte_flow_action action[MAX_RTE_FLOW_ACTIONS] = {};
    struct rte_flow_attr attr;
    struct rte_flow_item_eth eth;
    struct rte_flow *flow = NULL;
    struct rte_flow_error error;
    int ret;
    int no_queues =2;
    uint16_t queues[2];
    struct rte_flow_action_rss rss;
    memset(&error, 0x22, sizeof(error));
    memset(&attr, 0, sizeof(attr));
    attr.egress = 0;
    attr.ingress = 1;

    memset(&pattern, 0, sizeof(pattern));
    memset(&action, 0, sizeof(action));
    /* setting the eth to pass all packets */
    pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;
    pattern[0].spec = &eth;
    pattern[1].type = RTE_FLOW_ITEM_TYPE_END;

    rss.types = ETH_RSS_IP;
    rss.level = 0;
    rss.key_len =0;
    rss.key = NULL;
    rss.queue_num = no_queues;
    for (int i= 0; i < no_queues; i++){
        queues[i] = i;
    rss.queue = queues;
    action[0].type = RTE_FLOW_ACTION_TYPE_RSS;
    action[0].conf = &rss;

    action[1].type = RTE_FLOW_ACTION_TYPE_END;

    ret = rte_flow_validate(portid, &attr, pattern, action, &error);
     if (ret < 0) {
      printf( "Flow validation failed %s\n", error.message);
    flow = rte_flow_create(portid, &attr, pattern, action, &error);

    if (flow == NULL)
        printf(" Cannot create Flow create");

And Rx queues configuration:
for (int j = 0; j < no_queues; j++) {

         int ret = rte_eth_rx_queue_setup(portid, j, nb_rxd,
     if (ret < 0) {
      printf( "rte_eth_rx_queue_setup:err=%d, port=%u", ret, (unsigned)


             reply	other threads:[~2021-09-29  5:26 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-29  5:26 Anna A [this message]
2021-09-29  9:53 ` Thomas Monjalon
2021-09-29 10:09   ` Wisam Monther
2021-09-30  0:29     ` Anna A
2021-09-30  1:13       ` Raslan Darawsheh
2021-09-30  5:38         ` Anna A

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CALgGc3UAerQXBwLOMao3ehtaCS7UptgiKzR0yuXF=3jke-8QwQ@mail.gmail.com' \
    --to=pacman.n908@gmail.com \
    --cc=users@dpdk.org \


* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK usage discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror http://inbox.dpdk.org/users/0 users/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 users users/ http://inbox.dpdk.org/users \
	public-inbox-index users

Example config snippet for mirrors.
Newsgroup available over NNTP:

AGPL code for this site: git clone https://public-inbox.org/public-inbox.git