From: Tomasz Kulasek <tomaszx.kulasek@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH v3 8/8] doc: dynamic rss configuration for bonding
Date: Mon, 29 Jun 2015 16:50:44 +0200 [thread overview]
Message-ID: <1435589444-1988-9-git-send-email-tomaszx.kulasek@intel.com> (raw)
In-Reply-To: <1435589444-1988-1-git-send-email-tomaszx.kulasek@intel.com>
Documentation update about implementation details and requirements for
Dynamic RSS Configuration for Bonding.
Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
---
.../prog_guide/link_bonding_poll_mode_drv_lib.rst | 34 ++++++++++++++++++--
1 file changed, 32 insertions(+), 2 deletions(-)
diff --git a/doc/guides/prog_guide/link_bonding_poll_mode_drv_lib.rst b/doc/guides/prog_guide/link_bonding_poll_mode_drv_lib.rst
index 03baf90..46f0296 100644
--- a/doc/guides/prog_guide/link_bonding_poll_mode_drv_lib.rst
+++ b/doc/guides/prog_guide/link_bonding_poll_mode_drv_lib.rst
@@ -1,5 +1,5 @@
.. BSD LICENSE
- Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
All rights reserved.
Redistribution and use in source and binary forms, with or without
@@ -173,7 +173,28 @@ After a slave device is added to a bonded device slave is stopped using
``rte_eth_dev_stop`` and then reconfigured using ``rte_eth_dev_configure``
the RX and TX queues are also reconfigured using ``rte_eth_tx_queue_setup`` /
``rte_eth_rx_queue_setup`` with the parameters use to configure the bonding
-device.
+device. If RSS is enabled for bonding device, this mode is also enabled on new
+slave and configured as well.
+
+Setting up multi-queue mode for bonding device to RSS, makes it fully
+RSS-capable, so all slaves are synchronized with its configuration. This mode is
+intended to provide RSS configuration on slaves transparent for client
+application implementation.
+
+Bonding device stores its own version of RSS settings i.e. RETA, RSS hash
+function and RSS key, used to set up its slaves. That let to define the meaning
+of RSS configuration of bonding device as desired configuration of whole bonding
+(as one unit), without pointing any of slave inside. It is required to ensure
+consistency and made it more errorproof.
+
+RSS hash function set for bonding device, is a maximal set of RSS hash functions
+supported by all bonded slaves. RETA size is a GCD of all its RETA's sizes, so
+it can be easily used as a pattern providing expected behavior, even if slave
+RETAs' sizes are different. If RSS Key is not set for bonded device, it's not
+changed on the slaves and default key for device is used.
+
+All settings are managed through the bonding port API and always are propagated
+in one direction (from bonding to slaves).
Link Status Change Interrupts / Polling
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -207,6 +228,15 @@ these parameters.
A bonding device must have a minimum of one slave before the bonding device
itself can be started.
+To use a bonding device dynamic RSS configuration feature effectively, it is
+also required, that all slaves should be RSS-capable and support, at least one
+common hash function available for each of them. Changing RSS key is only
+possible, when all slave devices support the same key size.
+
+To prevent inconsistency on how slaves process packets, once a device is added
+to a bonding device, RSS configuration should be managed through the bonding
+device API, and not directly on the slave.
+
Like all other PMD, all functions exported by a PMD are lock-free functions
that are assumed not to be invoked in parallel on different logical cores to
work on the same target object.
--
1.7.9.5
next prev parent reply other threads:[~2015-06-29 14:57 UTC|newest]
Thread overview: 125+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-03 10:58 [dpdk-dev] [PATCH 0/8] Dynamic RSS Configuration for Bonding Tomasz Kulasek
2015-06-03 10:59 ` [dpdk-dev] [PATCH 1/8] bond: dynamic rss configuration Tomasz Kulasek
2015-06-03 10:59 ` [dpdk-dev] [PATCH 2/8] ring: " Tomasz Kulasek
2015-06-03 10:59 ` [dpdk-dev] [PATCH 3/8] test: " Tomasz Kulasek
2015-06-03 10:59 ` [dpdk-dev] [PATCH 4/8] bond: queue stats mapping Tomasz Kulasek
2015-06-03 10:59 ` [dpdk-dev] [PATCH 5/8] ring: queue stats mapping set dummy implementation Tomasz Kulasek
2015-06-03 10:59 ` [dpdk-dev] [PATCH 6/8] examples: dynamic rss configuration for bonding Tomasz Kulasek
2015-06-03 10:59 ` [dpdk-dev] [PATCH 7/8] doc: fixed spellings and typos Tomasz Kulasek
2015-06-03 10:59 ` [dpdk-dev] [PATCH 8/8] doc: dynamic rss configuration for bonding Tomasz Kulasek
2015-06-12 5:36 ` [dpdk-dev] [PATCH 0/8] Dynamic RSS Configuration for Bonding Xu, HuilongX
2015-06-25 9:20 ` Kulasek, TomaszX
2015-06-19 14:13 ` [dpdk-dev] [PATCH v2 " Tomasz Kulasek
2015-06-19 14:13 ` [dpdk-dev] [PATCH v2 1/8] bond: rss dynamic configuration Tomasz Kulasek
2015-06-19 14:13 ` [dpdk-dev] [PATCH v2 2/8] ring: dynamic rss configuration Tomasz Kulasek
2015-06-19 14:13 ` [dpdk-dev] [PATCH v2 3/8] test: " Tomasz Kulasek
2015-06-19 14:13 ` [dpdk-dev] [PATCH v2 4/8] bond: queue stats mapping Tomasz Kulasek
2015-06-19 14:13 ` [dpdk-dev] [PATCH v2 5/8] ring: queue stats mapping set dummy implementation Tomasz Kulasek
2015-06-19 14:13 ` [dpdk-dev] [PATCH v2 6/8] examples: dynamic rss configuration for bonding Tomasz Kulasek
2015-06-19 14:13 ` [dpdk-dev] [PATCH v2 7/8] doc: fixed spellings and typos Tomasz Kulasek
2015-06-19 14:13 ` [dpdk-dev] [PATCH v2 8/8] doc: dynamic rss configuration for bonding Tomasz Kulasek
2015-06-26 7:33 ` [dpdk-dev] [PATCH v2 0/8] Dynamic RSS Configuration for Bonding Doherty, Declan
2015-06-28 21:54 ` Thomas Monjalon
2015-06-29 14:50 ` [dpdk-dev] [PATCH v3 " Tomasz Kulasek
2015-06-29 14:50 ` [dpdk-dev] [PATCH v3 1/8] bonding: rss dynamic configuration Tomasz Kulasek
2015-06-29 14:50 ` [dpdk-dev] [PATCH v3 2/8] ring: dynamic rss configuration Tomasz Kulasek
2015-07-13 12:36 ` Thomas Monjalon
2015-07-13 14:43 ` Kulasek, TomaszX
2015-07-13 15:11 ` Thomas Monjalon
2015-07-16 13:02 ` Kulasek, TomaszX
2015-06-29 14:50 ` [dpdk-dev] [PATCH v3 3/8] test: " Tomasz Kulasek
2015-06-29 14:50 ` [dpdk-dev] [PATCH v3 4/8] bonding: queue stats mapping Tomasz Kulasek
2015-07-13 11:18 ` Thomas Monjalon
2015-07-13 12:00 ` Kulasek, TomaszX
2015-06-29 14:50 ` [dpdk-dev] [PATCH v3 5/8] ring: queue stats mapping set dummy implementation Tomasz Kulasek
2015-07-09 1:58 ` Thomas Monjalon
2015-07-09 9:55 ` Kulasek, TomaszX
2015-07-09 10:13 ` Thomas Monjalon
2015-06-29 14:50 ` [dpdk-dev] [PATCH v3 6/8] examples: dynamic rss configuration for bonding Tomasz Kulasek
2015-07-13 11:20 ` Thomas Monjalon
2015-06-29 14:50 ` [dpdk-dev] [PATCH v3 7/8] doc: fixed spellings and typos Tomasz Kulasek
2015-06-29 14:50 ` Tomasz Kulasek [this message]
2015-07-01 10:05 ` [dpdk-dev] [PATCH v3 0/8] Dynamic RSS Configuration for Bonding Declan Doherty
2015-07-13 11:03 ` Thomas Monjalon
2015-07-13 11:18 ` Thomas Monjalon
2015-07-13 12:14 ` Kulasek, TomaszX
2015-07-15 17:26 ` [dpdk-dev] [PATCHv4 0/9] " Tomasz Kulasek
2015-07-15 17:26 ` [dpdk-dev] [PATCHv4 1/9] bonding: rss dynamic configuration Tomasz Kulasek
2015-07-15 17:26 ` [dpdk-dev] [PATCHv4 2/9] null: fix segfault when null_pmd added to bonding Tomasz Kulasek
2015-09-29 2:24 ` Tetsuya Mukawa
2015-09-29 9:39 ` Kulasek, TomaszX
2015-09-29 10:32 ` Tetsuya Mukawa
2015-09-29 11:29 ` Kulasek, TomaszX
2015-09-29 15:10 ` Kulasek, TomaszX
2015-09-30 1:24 ` Tetsuya Mukawa
2015-07-15 17:26 ` [dpdk-dev] [PATCHv4 3/9] null: extend number of virtual queues Tomasz Kulasek
2015-09-29 2:24 ` Tetsuya Mukawa
2015-09-29 9:46 ` Kulasek, TomaszX
2015-09-29 10:34 ` Tetsuya Mukawa
2015-09-29 11:56 ` Kulasek, TomaszX
2015-09-29 15:06 ` Kulasek, TomaszX
2015-09-30 1:24 ` Tetsuya Mukawa
2015-07-15 17:26 ` [dpdk-dev] [PATCHv4 4/9] null: virtual dynamic rss configuration Tomasz Kulasek
2015-09-29 2:24 ` Tetsuya Mukawa
2015-09-29 10:04 ` Kulasek, TomaszX
2015-10-12 9:05 ` Jastrzebski, MichalX K
2015-07-15 17:26 ` [dpdk-dev] [PATCHv4 5/9] null: export eth_dev_null_create Tomasz Kulasek
2015-09-25 10:11 ` Thomas Monjalon
2015-09-25 13:24 ` Kulasek, TomaszX
2015-09-25 13:43 ` Thomas Monjalon
2015-09-29 2:28 ` Tetsuya Mukawa
2015-07-15 17:26 ` [dpdk-dev] [PATCHv4 6/9] test: dynamic rss configuration Tomasz Kulasek
2015-07-15 17:26 ` [dpdk-dev] [PATCHv4 7/9] bonding: queue stats mapping Tomasz Kulasek
2015-09-25 10:14 ` Thomas Monjalon
2015-09-25 13:26 ` Kulasek, TomaszX
2015-07-15 17:26 ` [dpdk-dev] [PATCHv4 8/9] doc: fixed spellings and typos Tomasz Kulasek
2015-07-15 17:26 ` [dpdk-dev] [PATCHv4 9/9] doc: dynamic rss configuration for bonding Tomasz Kulasek
2015-09-25 10:16 ` [dpdk-dev] [PATCHv4 0/9] Dynamic RSS Configuration for Bonding Thomas Monjalon
2015-09-25 13:28 ` Kulasek, TomaszX
2015-09-25 13:44 ` Thomas Monjalon
2015-09-30 14:04 ` [dpdk-dev] [PATCH v5 " Tomasz Kulasek
2015-09-30 14:04 ` [dpdk-dev] [PATCH v5 1/9] bonding: rss dynamic configuration Tomasz Kulasek
2015-09-30 14:04 ` [dpdk-dev] [PATCH v5 2/9] null: fix segfault when null_pmd added to bonding Tomasz Kulasek
2015-09-30 14:04 ` [dpdk-dev] [PATCH v5 3/9] null: extend number of virtual queues Tomasz Kulasek
2015-10-14 1:34 ` Tetsuya Mukawa
2015-09-30 14:05 ` [dpdk-dev] [PATCH v5 4/9] null: virtual dynamic rss configuration Tomasz Kulasek
2015-10-14 1:34 ` Tetsuya Mukawa
2015-10-15 7:46 ` Tetsuya Mukawa
2015-10-15 8:42 ` Kulasek, TomaszX
2015-10-15 9:21 ` Tetsuya Mukawa
2015-09-30 14:05 ` [dpdk-dev] [PATCH v5 5/9] null: export eth_dev_null_create Tomasz Kulasek
2015-10-14 1:35 ` Tetsuya Mukawa
2015-10-14 12:42 ` Jastrzebski, MichalX K
2015-10-15 8:16 ` Tetsuya Mukawa
2015-10-15 10:35 ` Jastrzebski, MichalX K
2015-09-30 14:05 ` [dpdk-dev] [PATCH v5 6/9] test: dynamic rss configuration Tomasz Kulasek
2015-09-30 14:05 ` [dpdk-dev] [PATCH v5 7/9] bonding: per queue stats Tomasz Kulasek
2015-09-30 14:05 ` [dpdk-dev] [PATCH v5 8/9] doc: fixed spellings and typos Tomasz Kulasek
2015-09-30 14:05 ` [dpdk-dev] [PATCH v5 9/9] doc: dynamic rss configuration for bonding Tomasz Kulasek
2015-10-16 10:00 ` [dpdk-dev] [PATCH v6 0/9] Dynamic RSS Configuration for Bonding Tomasz Kulasek
2015-10-16 10:00 ` [dpdk-dev] [PATCH v6 1/9] bonding: rss dynamic configuration Tomasz Kulasek
2015-10-16 10:00 ` [dpdk-dev] [PATCH v6 2/9] null: fix segfault when null_pmd added to bonding Tomasz Kulasek
2015-10-27 16:58 ` Thomas Monjalon
2015-10-28 13:43 ` Kulasek, TomaszX
2015-10-29 7:19 ` Tetsuya Mukawa
2015-10-30 13:50 ` Kulasek, TomaszX
2015-10-16 10:00 ` [dpdk-dev] [PATCH v6 3/9] null: extend number of virtual queues Tomasz Kulasek
2015-10-16 10:00 ` [dpdk-dev] [PATCH v6 4/9] null: export eth_dev_null_create Tomasz Kulasek
2015-10-16 10:00 ` [dpdk-dev] [PATCH v6 5/9] null: virtual dynamic rss configuration Tomasz Kulasek
2015-10-16 10:00 ` [dpdk-dev] [PATCH v6 6/9] test: " Tomasz Kulasek
2015-10-27 17:34 ` Thomas Monjalon
2015-10-16 10:00 ` [dpdk-dev] [PATCH v6 7/9] bonding: per queue stats Tomasz Kulasek
2015-10-16 10:00 ` [dpdk-dev] [PATCH v6 8/9] doc: fixed spellings and typos Tomasz Kulasek
2015-10-16 10:00 ` [dpdk-dev] [PATCH v6 9/9] doc: dynamic rss configuration for bonding Tomasz Kulasek
2015-10-19 13:22 ` [dpdk-dev] [PATCH v6 0/9] Dynamic RSS Configuration for Bonding Declan Doherty
2015-10-30 14:25 ` [dpdk-dev] [PATCH v7 " Tomasz Kulasek
2015-10-30 14:25 ` [dpdk-dev] [PATCH v7 1/9] bonding: rss dynamic configuration Tomasz Kulasek
2015-10-30 14:25 ` [dpdk-dev] [PATCH v7 2/9] null: fix segfault when null_pmd added to bonding Tomasz Kulasek
2015-10-30 14:25 ` [dpdk-dev] [PATCH v7 3/9] null: extend number of virtual queues Tomasz Kulasek
2015-10-30 14:25 ` [dpdk-dev] [PATCH v7 4/9] null: export eth_dev_null_create Tomasz Kulasek
2015-10-30 14:25 ` [dpdk-dev] [PATCH v7 5/9] null: virtual dynamic rss configuration Tomasz Kulasek
2015-10-30 14:25 ` [dpdk-dev] [PATCH v7 6/9] test: " Tomasz Kulasek
2015-10-30 14:25 ` [dpdk-dev] [PATCH v7 7/9] bonding: per queue stats Tomasz Kulasek
2015-10-30 14:25 ` [dpdk-dev] [PATCH v7 8/9] doc: fixed spellings and typos Tomasz Kulasek
2015-10-30 14:25 ` [dpdk-dev] [PATCH v7 9/9] doc: dynamic rss configuration for bonding Tomasz Kulasek
2015-11-01 17:29 ` [dpdk-dev] [PATCH v7 0/9] Dynamic RSS Configuration for Bonding Thomas Monjalon
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