From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id CAC6743AD8; Tue, 20 Feb 2024 04:29:06 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 9BACE402B8; Tue, 20 Feb 2024 04:29:06 +0100 (CET) Received: from inbox.dpdk.org (inbox.dpdk.org [95.142.172.178]) by mails.dpdk.org (Postfix) with ESMTP id C71514029B for ; Tue, 20 Feb 2024 04:29:04 +0100 (CET) Received: by inbox.dpdk.org (Postfix, from userid 33) id B88D743B08; Tue, 20 Feb 2024 04:29:04 +0100 (CET) From: bugzilla@dpdk.org To: dev@dpdk.org Subject: [DPDK/ethdev Bug 1381] TAP device can not support 17 queues Date: Tue, 20 Feb 2024 03:29:04 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: DPDK X-Bugzilla-Component: ethdev X-Bugzilla-Version: 23.11 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: stephen@networkplumber.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: dev@dpdk.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: multipart/alternative; boundary=17083997440.14e7540f.3325610 Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org --17083997440.14e7540f.3325610 Date: Tue, 20 Feb 2024 04:29:04 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All https://bugs.dpdk.org/show_bug.cgi?id=3D1381 Bug ID: 1381 Summary: TAP device can not support 17 queues Product: DPDK Version: 23.11 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: Normal Component: ethdev Assignee: dev@dpdk.org Reporter: stephen@networkplumber.org Target Milestone: --- If you try: # dpdk-testpmd --log-level=3Dpmd.net.tap:debug -l 1-2 --vdev=3Dnet_tap0 -- = -i --rxq=3D8 --txq=3D8 It will fail because: EAL: Detected CPU lcores: 8 EAL: Detected NUMA nodes: 1 EAL: Detected static linkage of DPDK EAL: Multi-process socket /var/run/dpdk/rte/mp_socket EAL: Selected IOVA mode 'VA' rte_pmd_tap_probe(): Initializing pmd_tap for net_tap0 eth_dev_tap_create(): TAP device on numa 0 tun_alloc(): /dev/net/tun Features 00007173 tun_alloc(): Multi-queue support for 16 queues tun_alloc(): Device name is 'dtap0' tun_alloc(): Using rt-signal 35 eth_dev_tap_create(): allocated dtap0 Interactive-mode selected testpmd: create a new mbuf pool : n=3D155456, size=3D2176, socke= t=3D0 testpmd: preferred mempool ops selected: ring_mp_mc Warning! port-topology=3Dpaired and odd forward ports number, the last port= will pair with itself. Configuring Port 0 (socket 0) tap_dev_configure(): net_tap0: dtap0: TX configured queues number: 8 tap_dev_configure(): net_tap0: dtap0: RX configured queues number: 8 tun_alloc(): /dev/net/tun Features 00007173 tun_alloc(): Multi-queue support for 16 queues tun_alloc(): Device name is 'dtap0' tap_setup_queue(): dtap0: add tx queue for qid 0 fd 26 tap_tx_queue_setup(): TX TUNTAP device name dtap0, qid 0 on fd 26 csum off tun_alloc(): /dev/net/tun Features 00007173 tun_alloc(): Multi-queue support for 16 queues tun_alloc(): Device name is 'dtap0' tap_setup_queue(): dtap0: add tx queue for qid 1 fd 212 tap_tx_queue_setup(): TX TUNTAP device name dtap0, qid 1 on fd 212 csum o= ff tun_alloc(): /dev/net/tun Features 00007173 tun_alloc(): Multi-queue support for 16 queues tun_alloc(): Device name is 'dtap0' tap_setup_queue(): dtap0: add tx queue for qid 2 fd 213 tap_tx_queue_setup(): TX TUNTAP device name dtap0, qid 2 on fd 213 csum o= ff tun_alloc(): /dev/net/tun Features 00007173 tun_alloc(): Multi-queue support for 16 queues tun_alloc(): Device name is 'dtap0' tap_setup_queue(): dtap0: add tx queue for qid 3 fd 214 tap_tx_queue_setup(): TX TUNTAP device name dtap0, qid 3 on fd 214 csum o= ff tun_alloc(): /dev/net/tun Features 00007173 tun_alloc(): Multi-queue support for 16 queues tun_alloc(): Device name is 'dtap0' tap_setup_queue(): dtap0: add tx queue for qid 4 fd 215 tap_tx_queue_setup(): TX TUNTAP device name dtap0, qid 4 on fd 215 csum o= ff tun_alloc(): /dev/net/tun Features 00007173 tun_alloc(): Multi-queue support for 16 queues tun_alloc(): Device name is 'dtap0' tap_setup_queue(): dtap0: add tx queue for qid 5 fd 216 tap_tx_queue_setup(): TX TUNTAP device name dtap0, qid 5 on fd 216 csum o= ff tun_alloc(): /dev/net/tun Features 00007173 tun_alloc(): Multi-queue support for 16 queues tun_alloc(): Device name is 'dtap0' tap_setup_queue(): dtap0: add tx queue for qid 6 fd 217 tap_tx_queue_setup(): TX TUNTAP device name dtap0, qid 6 on fd 217 csum o= ff tun_alloc(): /dev/net/tun Features 00007173 tun_alloc(): Multi-queue support for 16 queues tun_alloc(): Device name is 'dtap0' tap_setup_queue(): dtap0: add tx queue for qid 7 fd 218 tap_tx_queue_setup(): TX TUNTAP device name dtap0, qid 7 on fd 218 csum o= ff tap_setup_queue(): dtap0: dup fd 26 for rx queue qid 0 (219) tap_rx_queue_setup(): RX TUNTAP device name dtap0, qid 0 on fd 219 tap_setup_queue(): dtap0: dup fd 212 for rx queue qid 1 (220) tap_rx_queue_setup(): RX TUNTAP device name dtap0, qid 1 on fd 220 tap_setup_queue(): dtap0: dup fd 213 for rx queue qid 2 (221) tap_rx_queue_setup(): RX TUNTAP device name dtap0, qid 2 on fd 221 tap_setup_queue(): dtap0: dup fd 214 for rx queue qid 3 (222) tap_rx_queue_setup(): RX TUNTAP device name dtap0, qid 3 on fd 222 tap_setup_queue(): dtap0: dup fd 215 for rx queue qid 4 (223) tap_rx_queue_setup(): RX TUNTAP device name dtap0, qid 4 on fd 223 tap_setup_queue(): dtap0: dup fd 216 for rx queue qid 5 (224) tap_rx_queue_setup(): RX TUNTAP device name dtap0, qid 5 on fd 224 tap_setup_queue(): dtap0: dup fd 217 for rx queue qid 6 (225) tap_rx_queue_setup(): RX TUNTAP device name dtap0, qid 6 on fd 225 tap_setup_queue(): dtap0: dup fd 218 for rx queue qid 7 (226) tap_rx_queue_setup(): RX TUNTAP device name dtap0, qid 7 on fd 226 EAL: Cannot send more than 8 FDs tap_mp_req_on_rxtx(): Failed to send start req to secondary 7 This is a regression caused by: commit c36ce7099c2187926cd62cff7ebd479823554929 Author: Kumara Parameshwaran Date: Mon Jan 31 20:02:34 2022 +0530 net/tap: fix to populate FDs in secondary process When a tap device is hotplugged to primary process which in turn adds the device to all secondary process, the secondary process does a tap_mp_attach_queues, but the fds are not populated in the primary during the probe they are populated during the queue_setup, added a fix to sync the queues during rte_eth_dev_start Fixes: 4852aa8f6e21 ("drivers/net: enable hotplug on secondary process") Cc: stable@dpdk.org Signed-off-by: Kumara Parameshwaran Reviewed-by: Ferruh Yigit --=20 You are receiving this mail because: You are the assignee for the bug.= --17083997440.14e7540f.3325610 Date: Tue, 20 Feb 2024 04:29:04 +0100 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All
Bug ID 1381
Summary TAP device can not support 17 queues
Product DPDK
Version 23.11
Hardware All
OS All
Status UNCONFIRMED
Severity normal
Priority Normal
Component ethdev
Assignee dev@dpdk.org
Reporter stephen@networkplumber.org
Target Milestone --- 

If you try:
# dpdk-testpmd --log-level=3Dpmd.net.tap:debug -l 1-2 --vdev=3Dnet_tap0 -- =
-i
--rxq=3D8 --txq=3D8

It will fail because:
EAL: Detected CPU lcores: 8
EAL: Detected NUMA nodes: 1
EAL: Detected static linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'VA'
rte_pmd_tap_probe(): Initializing pmd_tap for net_tap0
eth_dev_tap_create(): TAP device on numa 0
tun_alloc(): /dev/net/tun Features 00007173
tun_alloc():   Multi-queue support for 16 queues
tun_alloc(): Device name is 'dtap0'
tun_alloc(): Using rt-signal 35
eth_dev_tap_create(): allocated dtap0
Interactive-mode selected
testpmd: create a new mbuf pool <mb_pool_0>: n=3D155456, size=3D2176,=
 socket=3D0
testpmd: preferred mempool ops selected: ring_mp_mc

Warning! port-topology=3Dpaired and odd forward ports number, the last port=
 will
pair with itself.

Configuring Port 0 (socket 0)
tap_dev_configure(): net_tap0: dtap0: TX configured queues number: 8
tap_dev_configure(): net_tap0: dtap0: RX configured queues number: 8
tun_alloc(): /dev/net/tun Features 00007173
tun_alloc():   Multi-queue support for 16 queues
tun_alloc(): Device name is 'dtap0'
tap_setup_queue(): dtap0: add tx queue for qid 0 fd 26
tap_tx_queue_setup():   TX TUNTAP device name dtap0, qid 0 on fd 26 csum off
tun_alloc(): /dev/net/tun Features 00007173
tun_alloc():   Multi-queue support for 16 queues
tun_alloc(): Device name is 'dtap0'
tap_setup_queue(): dtap0: add tx queue for qid 1 fd 212
tap_tx_queue_setup():   TX TUNTAP device name dtap0, qid 1 on fd 212 csum o=
ff
tun_alloc(): /dev/net/tun Features 00007173
tun_alloc():   Multi-queue support for 16 queues
tun_alloc(): Device name is 'dtap0'
tap_setup_queue(): dtap0: add tx queue for qid 2 fd 213
tap_tx_queue_setup():   TX TUNTAP device name dtap0, qid 2 on fd 213 csum o=
ff
tun_alloc(): /dev/net/tun Features 00007173
tun_alloc():   Multi-queue support for 16 queues
tun_alloc(): Device name is 'dtap0'
tap_setup_queue(): dtap0: add tx queue for qid 3 fd 214
tap_tx_queue_setup():   TX TUNTAP device name dtap0, qid 3 on fd 214 csum o=
ff
tun_alloc(): /dev/net/tun Features 00007173
tun_alloc():   Multi-queue support for 16 queues
tun_alloc(): Device name is 'dtap0'
tap_setup_queue(): dtap0: add tx queue for qid 4 fd 215
tap_tx_queue_setup():   TX TUNTAP device name dtap0, qid 4 on fd 215 csum o=
ff
tun_alloc(): /dev/net/tun Features 00007173
tun_alloc():   Multi-queue support for 16 queues
tun_alloc(): Device name is 'dtap0'
tap_setup_queue(): dtap0: add tx queue for qid 5 fd 216
tap_tx_queue_setup():   TX TUNTAP device name dtap0, qid 5 on fd 216 csum o=
ff
tun_alloc(): /dev/net/tun Features 00007173
tun_alloc():   Multi-queue support for 16 queues
tun_alloc(): Device name is 'dtap0'
tap_setup_queue(): dtap0: add tx queue for qid 6 fd 217
tap_tx_queue_setup():   TX TUNTAP device name dtap0, qid 6 on fd 217 csum o=
ff
tun_alloc(): /dev/net/tun Features 00007173
tun_alloc():   Multi-queue support for 16 queues
tun_alloc(): Device name is 'dtap0'
tap_setup_queue(): dtap0: add tx queue for qid 7 fd 218
tap_tx_queue_setup():   TX TUNTAP device name dtap0, qid 7 on fd 218 csum o=
ff
tap_setup_queue(): dtap0: dup fd 26 for rx queue qid 0 (219)
tap_rx_queue_setup():   RX TUNTAP device name dtap0, qid 0 on fd 219
tap_setup_queue(): dtap0: dup fd 212 for rx queue qid 1 (220)
tap_rx_queue_setup():   RX TUNTAP device name dtap0, qid 1 on fd 220
tap_setup_queue(): dtap0: dup fd 213 for rx queue qid 2 (221)
tap_rx_queue_setup():   RX TUNTAP device name dtap0, qid 2 on fd 221
tap_setup_queue(): dtap0: dup fd 214 for rx queue qid 3 (222)
tap_rx_queue_setup():   RX TUNTAP device name dtap0, qid 3 on fd 222
tap_setup_queue(): dtap0: dup fd 215 for rx queue qid 4 (223)
tap_rx_queue_setup():   RX TUNTAP device name dtap0, qid 4 on fd 223
tap_setup_queue(): dtap0: dup fd 216 for rx queue qid 5 (224)
tap_rx_queue_setup():   RX TUNTAP device name dtap0, qid 5 on fd 224
tap_setup_queue(): dtap0: dup fd 217 for rx queue qid 6 (225)
tap_rx_queue_setup():   RX TUNTAP device name dtap0, qid 6 on fd 225
tap_setup_queue(): dtap0: dup fd 218 for rx queue qid 7 (226)
tap_rx_queue_setup():   RX TUNTAP device name dtap0, qid 7 on fd 226
EAL: Cannot send more than 8 FDs
tap_mp_req_on_rxtx(): Failed to send start req to secondary 7

This is a regression caused by:
commit c36ce7099c2187926cd62cff7ebd479823554929
Author: Kumara Parameshwaran <kumaraparamesh92@gmail.com>
Date:   Mon Jan 31 20:02:34 2022 +0530

    net/tap: fix to populate FDs in secondary process

    When a tap device is hotplugged to primary process which in turn
    adds the device to all secondary process, the secondary process
    does a tap_mp_attach_queues, but the fds are not populated in
    the primary during the probe they are populated during the queue_setup,
    added a fix to sync the queues during rte_eth_dev_start

    Fixes: 4852aa8f6e21 ("drivers/net: enable hotplug on secondary pro=
cess")
    Cc: stable@dpdk.org

    Signed-off-by: Kumara Parameshwaran <kparameshwar@vmware.com>
    Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

You are receiving this mail because:
  • You are the assignee for the bug.
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