DPDK patches and discussions
 help / color / mirror / Atom feed
From: Robert Sanford <rsanford2@gmail.com>
To: Declan Doherty <declan.doherty@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v11 1/5] bond: new link bonding library
Date: Mon, 30 Jun 2014 18:29:42 -0400
Message-ID: <CA+cr1cojs0sx5s1ohwVcdT6ojQ_7PEwEAqmtCca0LAz_jkvVdw@mail.gmail.com> (raw)
In-Reply-To: <1404064161-26370-2-git-send-email-declan.doherty@intel.com>

Hi Declan,

On Sun, Jun 29, 2014 at 1:49 PM, Declan Doherty <declan.doherty@intel.com>
wrote:

> Initial release with support for
>  Mode 0 - Round Robin
>  Mode 1 - Active Backup
>  Mode 2 - Balance -> Supports 3 transmit polices (layer 2, layer 2+3,
> layer 3+4)
>  Mode 3 - Broadcast
>
> Signed-off-by: Declan Doherty <declan.doherty@intel.com>
> ---
>  config/common_bsdapp                       |    5 +
>  config/common_linuxapp                     |    5 +
>  doc/doxy-api-index.md                      |    1 +
>  doc/doxy-api.conf                          |    1 +
>  lib/Makefile                               |    1 +
>  lib/librte_pmd_bond/Makefile               |   61 ++
>  lib/librte_pmd_bond/rte_eth_bond.h         |  255 ++++++
>  lib/librte_pmd_bond/rte_eth_bond_api.c     |  662 +++++++++++++++
>  lib/librte_pmd_bond/rte_eth_bond_args.c    |  252 ++++++
>  lib/librte_pmd_bond/rte_eth_bond_pmd.c     | 1212
> ++++++++++++++++++++++++++++
>  lib/librte_pmd_bond/rte_eth_bond_private.h |  215 +++++
>  mk/rte.app.mk                              |    4 +
>  12 files changed, 2674 insertions(+), 0 deletions(-)
>  create mode 100644 lib/librte_pmd_bond/Makefile
>  create mode 100644 lib/librte_pmd_bond/rte_eth_bond.h
>  create mode 100644 lib/librte_pmd_bond/rte_eth_bond_api.c
>  create mode 100644 lib/librte_pmd_bond/rte_eth_bond_args.c
>  create mode 100644 lib/librte_pmd_bond/rte_eth_bond_pmd.c
>  create mode 100644 lib/librte_pmd_bond/rte_eth_bond_private.h
>
>
>
I see a potential problem with bond_ethdev_rx_burst( ).
We could receive more packets than the caller asked for, and overrun the
caller's rte_mbuf * array.
The fix could be something like this:

--- a/lib/librte_pmd_bond/rte_eth_bond_pmd.c
+++ b/lib/librte_pmd_bond/rte_eth_bond_pmd.c
@@ -73,13 +73,15 @@ bond_ethdev_rx_burst(void *queue, struct rte_mbuf
**bufs, uint16_t nb_pkts)
        case BONDING_MODE_ROUND_ROBIN:
        case BONDING_MODE_BROADCAST:
        case BONDING_MODE_BALANCE:
-               for (i = 0; i < internals->active_slave_count; i++) {
+               for (i = 0; i < internals->active_slave_count && nb_pkts;
i++) {
                        /* Offset of pointer to *bufs increases as packets
are received
                         * from other slaves */
                        num_rx_slave =
rte_eth_rx_burst(internals->active_slaves[i],
                                        bd_rx_q->queue_id, bufs +
num_rx_total, nb_pkts);
-                       if (num_rx_slave)
+                       if (num_rx_slave) {
                                num_rx_total += num_rx_slave;
+                               nb_pkts -= num_rx_slave;
+                       }
                }
                break;
        case BONDING_MODE_ACTIVE_BACKUP:

--
Regards,
Robert

  parent reply	other threads:[~2014-06-30 22:29 UTC|newest]

Thread overview: 127+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-28 15:32 [dpdk-dev] [PATCH 0/4] Link Bonding Library declan.doherty
2014-05-28 15:32 ` [dpdk-dev] [PATCH 1/4] " declan.doherty
2014-05-28 16:54   ` Shaw, Jeffrey B
2014-05-29 13:32     ` Doherty, Declan
2014-05-28 15:32 ` [dpdk-dev] [PATCH 2/4] Link bonding unit tests declan.doherty
2014-05-28 15:32 ` [dpdk-dev] [PATCH 3/4] Link bonding integration into testpmd declan.doherty
2014-05-28 15:32 ` [dpdk-dev] [PATCH 4/4] Add Link Bonding Library to Doxygen declan.doherty
2014-05-28 17:49 ` [dpdk-dev] [PATCH 0/4] Link Bonding Library Neil Horman
2014-05-29 10:33   ` Doherty, Declan
2014-05-29 11:33     ` Neil Horman
2014-05-29  3:23 ` Cao, Waterman
2014-05-29 10:35   ` Doherty, Declan
2014-06-04 15:18 ` [dpdk-dev] [PATCH v2 " declan.doherty
2014-06-04 15:18   ` [dpdk-dev] [PATCH v2 1/4] " declan.doherty
2014-06-04 15:18     ` declan.doherty
2014-06-05 15:15     ` Stephen Hemminger
2014-06-06  9:07       ` Doherty, Declan
2014-06-06 15:13         ` Stephen Hemminger
2014-06-09 21:11     ` Eric Kinzie
2014-06-13 14:03       ` Doherty, Declan
2014-06-04 15:18   ` [dpdk-dev] [PATCH v2 2/4] Link bonding unit tests, including: - code to generate packet bursts for testing rx and tx functionality of bonded device - virtual/stubbed out ethdev for use as slave ethdev in testing - checkpack fixes declan.doherty
2014-06-04 15:18     ` declan.doherty
2014-06-04 15:18   ` [dpdk-dev] [PATCH v2 0/4] Link Bonding Library declan.doherty
2014-06-04 15:18   ` [dpdk-dev] [PATCH v2 3/4] Adding link bonding support to testpmd. - Includes the ability to create new bonded devices. - Add /remove bonding slave devices. - Interogate bonded device stats/configuration - Change bonding modes and select balance transmit polices declan.doherty
2014-06-04 15:18   ` [dpdk-dev] [PATCH v2 4/4] Add Link Bonding Library to Doxygen declan.doherty
2014-06-04 16:10   ` [dpdk-dev] [PATCH v2 0/4] Link Bonding Library Doherty, Declan
2014-06-05  8:03   ` De Lara Guarch, Pablo
2014-06-05 11:03   ` Neil Horman
2014-06-06  8:23     ` Doherty, Declan
2014-06-06 14:54       ` Neil Horman
2014-06-13 14:56         ` Doherty, Declan
2014-06-13 15:11           ` Neil Horman
2014-06-06  3:26   ` Cao, Waterman
2014-06-11 16:33   ` Thomas Monjalon
2014-06-13 14:08     ` Doherty, Declan
2014-06-13 15:15       ` Thomas Monjalon
2014-06-13 14:41 ` [dpdk-dev] [PATCH v3 0/5] Link Bonding PMD Library Declan Doherty
2014-06-13 14:41   ` [dpdk-dev] [PATCH v3 1/5] " Declan Doherty
2014-06-13 14:41   ` [dpdk-dev] [PATCH v3 2/5] Link Bonding PMD Library (librte_eal/librte_ether link bonding support changes) Declan Doherty
2014-06-13 16:08     ` Neil Horman
2014-06-13 18:34       ` Doherty, Declan
2014-06-13 19:38         ` Neil Horman
2014-06-16  8:59           ` Doherty, Declan
2014-06-16 11:07             ` Neil Horman
2014-06-16 16:17               ` Richardson, Bruce
2014-06-16 17:47                 ` Neil Horman
2014-06-16 18:07                   ` Richardson, Bruce
2014-06-16 18:09                   ` Thomas Monjalon
2014-06-13 21:59     ` Stephen Hemminger
2014-06-16  7:59       ` Doherty, Declan
2014-06-13 14:42   ` [dpdk-dev] [PATCH v3 3/5] Link Bonding PMD Library (Unit Test Suite) Declan Doherty
2014-06-13 14:42   ` [dpdk-dev] [PATCH v3 4/5] Link Bonding PMD Library (testpmd link bonding API support) Declan Doherty
2014-06-13 14:42   ` [dpdk-dev] [PATCH v3 5/5] Link Bonding PMD Library (Doxygen Additions) Declan Doherty
2014-06-13 15:20   ` [dpdk-dev] [PATCH v3 0/5] Link Bonding PMD Library Neil Horman
2014-06-16 11:18   ` [dpdk-dev] [PATCH v4 0/6] Link Bonding Library Declan Doherty
2014-06-18 16:14     ` [dpdk-dev] [PATCH v5 " Declan Doherty
2014-06-18 16:18       ` Neil Horman
2014-06-24 14:52       ` [dpdk-dev] [PATCH v6 " Declan Doherty
2014-06-24 16:03         ` [dpdk-dev] [PATCH v7 " Declan Doherty
2014-06-25 20:07           ` [dpdk-dev] [PATCH v8 " Declan Doherty
2014-06-26 16:02             ` De Lara Guarch, Pablo
2014-06-26 23:57             ` [dpdk-dev] [PATCH v9 0/5] link bonding Thomas Monjalon
2014-06-26 23:57               ` [dpdk-dev] [PATCH v9 1/5] bond: new link bonding library Thomas Monjalon
2014-06-27  0:45                 ` Thomas Monjalon
2014-06-26 23:57               ` [dpdk-dev] [PATCH v9 2/5] ethdev: add unique name to devices Thomas Monjalon
2014-06-26 23:57               ` [dpdk-dev] [PATCH v9 3/5] eal: support link bonding device initialization Thomas Monjalon
2014-06-26 23:57               ` [dpdk-dev] [PATCH v9 4/5] bond: unit tests Thomas Monjalon
2014-06-26 23:57               ` [dpdk-dev] [PATCH v9 5/5] bond: testpmd support Thomas Monjalon
2014-06-27 10:18               ` [dpdk-dev] [PATCH v10 0/5] link bonding Declan Doherty
2014-06-27 20:58                 ` Thomas Monjalon
2014-06-29 17:49                 ` [dpdk-dev] [PATCH v11 0/5] link bonding library Declan Doherty
2014-06-30  9:21                   ` Thomas Monjalon
2014-06-30  9:28                     ` Doherty, Declan
2014-07-01 22:01                       ` Thomas Monjalon
2014-06-29 17:49                 ` [dpdk-dev] [PATCH v11 1/5] bond: new " Declan Doherty
2014-06-30  9:13                   ` Thomas Monjalon
2014-06-30 22:29                   ` Robert Sanford [this message]
2014-07-01 14:16                     ` Thomas Monjalon
2014-07-01 14:19                     ` Doherty, Declan
2014-07-01 14:26                       ` Thomas Monjalon
2014-06-29 17:49                 ` [dpdk-dev] [PATCH v11 2/5] ethdev: add unique name to devices Declan Doherty
2014-06-29 17:49                 ` [dpdk-dev] [PATCH v11 3/5] eal: support link bonding device initialization Declan Doherty
2014-06-29 17:49                 ` [dpdk-dev] [PATCH v11 4/5] bond: unit tests Declan Doherty
2014-06-30  8:56                   ` Thomas Monjalon
2014-06-29 17:49                 ` [dpdk-dev] [PATCH v11 5/5] bond: testpmd support Declan Doherty
2014-06-27 10:18               ` [dpdk-dev] [PATCH v10 1/5] bond: new link bonding library Declan Doherty
2014-06-27 10:18               ` [dpdk-dev] [PATCH v10 2/5] ethdev: add unique name to devices Declan Doherty
2014-06-27 10:18               ` [dpdk-dev] [PATCH v10 3/5] eal: support link bonding device initialization Declan Doherty
2014-06-27 10:18               ` [dpdk-dev] [PATCH v10 4/5] bond: unit tests Declan Doherty
2014-06-27 10:18               ` [dpdk-dev] [PATCH v10 5/5] bond: testpmd support Declan Doherty
2014-06-25 20:07           ` [dpdk-dev] [PATCH v8 1/6] Link Bonding Library (lib/librte_pmd_bond) Declan Doherty
2014-06-25 20:07           ` [dpdk-dev] [PATCH v8 2/6] Support for unique interface naming of pmds Declan Doherty
2014-06-25 20:07           ` [dpdk-dev] [PATCH v8 3/6] EAL support for link bonding device initialization Declan Doherty
2014-06-25 20:07           ` [dpdk-dev] [PATCH v8 4/6] Link bonding Unit Tests Declan Doherty
2014-06-25 20:07           ` [dpdk-dev] [PATCH v8 5/6] testpmd link bonding additions Declan Doherty
2014-06-25 20:07           ` [dpdk-dev] [PATCH v8 6/6] Link Bonding Library doxygen additions Declan Doherty
2014-06-24 16:03         ` [dpdk-dev] [PATCH v7 1/6] Link Bonding Library (lib/librte_pmd_bond) Declan Doherty
2014-06-24 16:03         ` [dpdk-dev] [PATCH v7 2/6] Support for unique interface naming of pmds Declan Doherty
2014-06-24 16:03         ` [dpdk-dev] [PATCH v7 3/6] EAL support for link bonding device initialization Declan Doherty
2014-06-25 13:54           ` Thomas Monjalon
2014-06-25 14:41             ` Doherty, Declan
2014-06-25 16:00               ` Thomas Monjalon
2014-06-25 16:15                 ` Richardson, Bruce
2014-06-24 16:03         ` [dpdk-dev] [PATCH v7 4/6] Link bonding Unit Tests Declan Doherty
2014-06-24 16:03         ` [dpdk-dev] [PATCH v7 5/6] testpmd link bonding additions Declan Doherty
2014-06-24 16:03         ` [dpdk-dev] [PATCH v7 6/6] Link Bonding Library doxygen additions Declan Doherty
2014-06-25 13:43           ` Thomas Monjalon
2014-06-25 14:19             ` Doherty, Declan
2014-06-25 14:23               ` Thomas Monjalon
2014-06-24 14:52       ` [dpdk-dev] [PATCH v6 1/6] Link Bonding Library (lib/librte_pmd_bond) Declan Doherty
2014-06-24 14:52       ` [dpdk-dev] [PATCH v6 2/6] Support for unique interface naming of pmds Declan Doherty
2014-06-24 14:52       ` [dpdk-dev] [PATCH v6 3/6] EAL support for link bonding device initialization Declan Doherty
2014-06-24 14:52       ` [dpdk-dev] [PATCH v6 4/6] Link bonding Unit Tests Declan Doherty
2014-06-24 14:52       ` [dpdk-dev] [PATCH v6 5/6] testpmd link bonding additions Declan Doherty
2014-06-24 14:52       ` [dpdk-dev] [PATCH v6 6/6] Link Bonding Library doxygen additions Declan Doherty
2014-06-18 16:14     ` [dpdk-dev] [PATCH v5 1/6] Link Bonding Library (lib/librte_pmd_bond) Declan Doherty
2014-06-18 16:14     ` [dpdk-dev] [PATCH v5 2/6] Support for unique interface naming of pmds Declan Doherty
2014-06-18 16:14     ` [dpdk-dev] [PATCH v5 3/6] EAL support for link bonding device initialization Declan Doherty
2014-06-18 16:14     ` [dpdk-dev] [PATCH v5 4/6] Link bonding Unit Tests Declan Doherty
2014-06-18 16:14     ` [dpdk-dev] [PATCH v5 5/6] testpmd link bonding additions Declan Doherty
2014-06-18 16:14     ` [dpdk-dev] [PATCH v5 6/6] Link Bonding Library doxygen additions Declan Doherty
2014-06-16 11:18   ` [dpdk-dev] [PATCH v4 1/6] Link Bonding Library (lib/librte_pmd_bond) initial release with support for Mode 0 - Round Robin Mode 1 - Active Backup Mode 2 - Balance -> Supports 3 transmit polices (layer 2, layer 2+3, la Mode 3 - Broadcast Declan Doherty
2014-06-16 11:18   ` [dpdk-dev] [PATCH v4 2/6] Support for unique interface naming of pmds Declan Doherty
2014-06-16 11:18   ` [dpdk-dev] [PATCH v4 3/6] EAL support for link bonding device initialization Declan Doherty
2014-06-16 11:18   ` [dpdk-dev] [PATCH v4 4/6] Link bonding Unit Tests Declan Doherty
2014-06-16 11:18   ` [dpdk-dev] [PATCH v4 5/6] testpmd link bonding additions Declan Doherty
2014-06-16 11:18   ` [dpdk-dev] [PATCH v4 6/6] Link Bonding Library doxygen additions Declan Doherty

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:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

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

  git send-email \
    --in-reply-to=CA+cr1cojs0sx5s1ohwVcdT6ojQ_7PEwEAqmtCca0LAz_jkvVdw@mail.gmail.com \
    --to=rsanford2@gmail.com \
    --cc=declan.doherty@intel.com \
    --cc=dev@dpdk.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

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

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/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 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


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