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From: RajeshKumar Kalidass <rajesh.kalidass@gigamon.com>
To: "mk@semihalf.com" <mk@semihalf.com>,
	"igorch@amazon.com" <igorch@amazon.com>,
	"gtzalik@amazon.com" <gtzalik@amazon.com>,
	"ar@semihalf.com" <ar@semihalf.com>,
	"dev@dpdk.org" <dev@dpdk.org>
Cc: Tanmay Kishore <tanmay.kishore@gigamon.com>,
	Rakesh Jagota <rakesh.jagota@gigamon.com>
Subject: [dpdk-dev] net/ena: traffic lock
Date: Tue, 22 Dec 2020 08:03:21 +0000	[thread overview]
Message-ID: <BY5PR12MB374561392BF3AD087E1E5465F2DF0@BY5PR12MB3745.namprd12.prod.outlook.com> (raw)

Dpdk: 19.11
Driver: ena

During longevity(after 24+ hrs) testing at 10Gbps, one of tx-queue is getting into unrecoverable state ( its not able to find enough tx-descriptor nor its freeing up).

So for every tx-burst, eth_ena_xmit_pkts() neither finds free tx-descriptor nor able to free txd (ena_com_tx_comp_req_id_get() is always returning ENA_COM_TRY_AGAIN).

We see eth_ena_xmit_pkts() has been refactored in latest LTS version, is there any related issue got fixed ? Can you help


(gdb) p *(struct ena_ring *) rte_eth_devices[2].data->tx_queues[5]
$14 = {
  next_to_use = 4979,
  next_to_clean = 3958,
  type = ENA_RING_TYPE_TX,
  tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_DEV,
  {
    empty_tx_reqs = 0x11e406b00,
    empty_rx_reqs = 0x11e406b00
  },
  {
    tx_buffer_info = 0x11d2dfc80,
    rx_buffer_info = 0x11d2dfc80
  },
 rx_refill_buffer = 0x0,
  ring_size = 1024,
  ena_com_io_cq = 0x11e40e640,
  ena_com_io_sq = 0x11e4168c0,
  ena_bufs = {{
      len = 0,
      req_id = 0
    } <repeats 17 times>},
  mb_pool = 0x0,
  port_id = 2,
  id = 5,
  tx_max_header_size = 96 '`',
 configured = 1,
  push_buf_intermediate_buf = 0x11e406a00 "",
  adapter = 0x11e40e040,
  offloads = 2,
  sgl_size = 17,
  {
    rx_stats = {
      cnt = 4979,
      bytes = 417580,
      refill_partial = 35426,
      bad_csum = 0,
      mbuf_alloc_fail = 0,
      bad_desc_num = 38603,
---Type <return> to continue, or q <return> to quit---
      bad_req_id = 3178
    },
    tx_stats = {
      cnt = 4979,
      bytes = 417580,
      prepare_ctx_err = 35426, <-- Errors
      linearize = 0,
      linearize_failed = 0,
      tx_poll = 38603,
      doorbells = 3178,
      bad_req_id = 0,
      available_desc = 2
    }
  },
  numa_socket_id = 0
}

Thanks,
-Rajesh

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             reply	other threads:[~2020-12-22 20:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-22  8:03 RajeshKumar Kalidass [this message]
2020-12-22  9:46 ` Chauskin, Igor
2020-12-22  9:37 Rajesh Kumar

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