diff options
author | Aaron Conole <aconole@redhat.com> | 2018-05-03 15:08:01 -0400 |
---|---|---|
committer | Ian Stokes <ian.stokes@intel.com> | 2018-05-25 09:09:50 +0100 |
commit | 3e52fa5644cde2eba56c48355d5664e992992bf2 (patch) | |
tree | c306f3f7108f731278031fa66afbca3f9a622f78 | |
parent | d7e2509e2f68f124bded3a30afbbddbb86be087f (diff) | |
download | openvswitch-3e52fa5644cde2eba56c48355d5664e992992bf2.tar.gz |
dpdk: reflect status and version in the database
The normal way of retrieving the running DPDK status involves parsing
log files and issuing various incantations of ovs-vsctl and ovs-appctl
commands to determine whether the rte_eal_init successfully started.
This commit adds two new records to reflect the dpdk version, and
the dpdk initialization status.
To support this, the other_config:dpdk-init configuration block supports
the 'true' and 'try' keywords now, instead of just 'true'.
Signed-off-by: Aaron Conole <aconole@redhat.com>
Acked-by: Kevin Traynor <ktraynor@redhat.com>
Signed-off-by: Ian Stokes <ian.stokes@intel.com>
-rw-r--r-- | Documentation/faq/configuration.rst | 8 | ||||
-rw-r--r-- | Documentation/intro/install/dpdk.rst | 27 | ||||
-rw-r--r-- | NEWS | 1 | ||||
-rw-r--r-- | lib/dpdk-stub.c | 10 | ||||
-rw-r--r-- | lib/dpdk.c | 21 | ||||
-rw-r--r-- | lib/dpdk.h | 3 | ||||
-rw-r--r-- | vswitchd/bridge.c | 5 | ||||
-rw-r--r-- | vswitchd/vswitch.ovsschema | 11 | ||||
-rw-r--r-- | vswitchd/vswitch.xml | 11 |
9 files changed, 85 insertions, 12 deletions
diff --git a/Documentation/faq/configuration.rst b/Documentation/faq/configuration.rst index 1c93a55cc..0213c58dd 100644 --- a/Documentation/faq/configuration.rst +++ b/Documentation/faq/configuration.rst @@ -102,9 +102,11 @@ Q: How do I configure a DPDK port as an access port? A: Firstly, you must have a DPDK-enabled version of Open vSwitch. - If your version is DPDK-enabled it will support the other-config:dpdk-init - configuration in the database and will display lines with "EAL:..." during - startup when other_config:dpdk-init is set to 'true'. + If your version is DPDK-enabled it may support the dpdk_version and + dpdk_initialized keys in the configuration database. Earlier versions + of Open vSwitch only supported the other-config:dpdk-init key in the + configuration in the database. All versions will display lines with + "EAL:..." during startup when other_config:dpdk-init is set to 'true'. Secondly, when adding a DPDK port, unlike a system port, the type for the interface and valid dpdk-devargs must be specified. For example:: diff --git a/Documentation/intro/install/dpdk.rst b/Documentation/intro/install/dpdk.rst index 34cd0eaf9..247c41da3 100644 --- a/Documentation/intro/install/dpdk.rst +++ b/Documentation/intro/install/dpdk.rst @@ -208,7 +208,8 @@ Open vSwitch should be started as described in :doc:`general` with the exception of ovs-vswitchd, which requires some special configuration to enable DPDK functionality. DPDK configuration arguments can be passed to ovs-vswitchd via the ``other_config`` column of the ``Open_vSwitch`` table. At a minimum, -the ``dpdk-init`` option must be set to ``true``. For example:: +the ``dpdk-init`` option must be set to either ``true`` or ``try``. +For example:: $ export PATH=$PATH:/usr/local/share/openvswitch/scripts $ export DB_SOCK=/usr/local/var/run/openvswitch/db.sock @@ -219,8 +220,12 @@ There are many other configuration options, the most important of which are listed below. Defaults will be provided for all values not explicitly set. ``dpdk-init`` - Specifies whether OVS should initialize and support DPDK ports. This is a - boolean, and defaults to false. + Specifies whether OVS should initialize and support DPDK ports. This field + can either be ``true`` or ``try``. + A value of ``true`` will cause the ovs-vswitchd process to abort on + initialization failure. + A value of ``try`` will imply that the ovs-vswitchd process should + continue running even if the EAL initialization fails. ``dpdk-lcore-mask`` Specifies the CPU cores on which dpdk lcore threads should be spawned and @@ -257,6 +262,22 @@ See the section ``Performance Tuning`` for important DPDK customizations. Validating ---------- +DPDK support can be confirmed by validating the ``dpdk_initialized`` boolean +value from the ovsdb. A value of ``true`` means that the DPDK EAL +initialization succeeded:: + + $ ovs-vsctl get Open_vSwitch . dpdk_initialized + true + +Additionally, the library version linked to ovs-vswitchd can be confirmed +with either the ovs-vswitchd logs, or by running either of the commands:: + + $ ovs-vswitchd --version + ovs-vswitchd (Open vSwitch) 2.9.0 + DPDK 17.11.0 + $ ovs-vsctl get Open_vSwitch . dpdk_version + "DPDK 17.11.0" + At this point you can use ovs-vsctl to set up bridges and other Open vSwitch features. Seeing as we've configured the DPDK datapath, we will use DPDK-type ports. For example, to create a userspace bridge named ``br0`` and add two @@ -30,6 +30,7 @@ Post-v2.9.0 * New 'check-dpdk' Makefile target to run a new system testsuite. See Testing topic for the details. * Add LSC interrupt support for DPDK physical devices. + * Allow init to fail and record DPDK status/version in OVS database. - Userspace datapath: * Commands ovs-appctl dpif-netdev/pmd-*-show can now work on a single PMD * Detailed PMD performance metrics available with new command diff --git a/lib/dpdk-stub.c b/lib/dpdk-stub.c index 041cd0cbb..1df1c5848 100644 --- a/lib/dpdk-stub.c +++ b/lib/dpdk-stub.c @@ -21,6 +21,7 @@ #include "smap.h" #include "ovs-thread.h" #include "openvswitch/vlog.h" +#include "vswitch-idl.h" VLOG_DEFINE_THIS_MODULE(dpdk); @@ -59,3 +60,12 @@ void print_dpdk_version(void) { } + +void +dpdk_status(const struct ovsrec_open_vswitch *cfg) +{ + if (cfg) { + ovsrec_open_vswitch_set_dpdk_initialized(cfg, false); + ovsrec_open_vswitch_set_dpdk_version(cfg, "none"); + } +} diff --git a/lib/dpdk.c b/lib/dpdk.c index 8bb686c43..09afd8cc2 100644 --- a/lib/dpdk.c +++ b/lib/dpdk.c @@ -37,6 +37,7 @@ #include "openvswitch/dynamic-string.h" #include "openvswitch/vlog.h" #include "smap.h" +#include "vswitch-idl.h" VLOG_DEFINE_THIS_MODULE(dpdk); @@ -44,6 +45,8 @@ static FILE *log_stream = NULL; /* Stream for DPDK log redirection */ static char *vhost_sock_dir = NULL; /* Location of vhost-user sockets */ static bool vhost_iommu_enabled = false; /* Status of vHost IOMMU support */ +static bool dpdk_initialized = false; /* Indicates successful initialization + * of DPDK. */ static int process_vhost_flags(char *flag, const char *default_val, int size, @@ -474,7 +477,11 @@ dpdk_init(const struct smap *ovs_other_config) return; } - if (smap_get_bool(ovs_other_config, "dpdk-init", false)) { + const char *dpdk_init_val = smap_get_def(ovs_other_config, "dpdk-init", + "false"); + + bool try_only = !strcmp(dpdk_init_val, "try"); + if (!strcmp(dpdk_init_val, "true") || try_only) { static struct ovsthread_once once_enable = OVSTHREAD_ONCE_INITIALIZER; if (ovsthread_once_start(&once_enable)) { @@ -483,7 +490,7 @@ dpdk_init(const struct smap *ovs_other_config) enabled = dpdk_init__(ovs_other_config); if (enabled) { VLOG_INFO("DPDK Enabled - initialized"); - } else { + } else if (!try_only) { ovs_abort(rte_errno, "Cannot init EAL"); } ovsthread_once_done(&once_enable); @@ -493,6 +500,7 @@ dpdk_init(const struct smap *ovs_other_config) } else { VLOG_INFO_ONCE("DPDK Disabled - Use other_config:dpdk-init to enable"); } + dpdk_initialized = enabled; } const char * @@ -520,3 +528,12 @@ print_dpdk_version(void) { puts(rte_version()); } + +void +dpdk_status(const struct ovsrec_open_vswitch *cfg) +{ + if (cfg) { + ovsrec_open_vswitch_set_dpdk_initialized(cfg, dpdk_initialized); + ovsrec_open_vswitch_set_dpdk_version(cfg, rte_version()); + } +} diff --git a/lib/dpdk.h b/lib/dpdk.h index b04153591..efdaa637c 100644 --- a/lib/dpdk.h +++ b/lib/dpdk.h @@ -33,11 +33,12 @@ #endif /* DPDK_NETDEV */ struct smap; +struct ovsrec_open_vswitch; void dpdk_init(const struct smap *ovs_other_config); void dpdk_set_lcore_id(unsigned cpu); const char *dpdk_get_vhost_sock_dir(void); bool dpdk_vhost_iommu_enabled(void); void print_dpdk_version(void); - +void dpdk_status(const struct ovsrec_open_vswitch *); #endif /* dpdk.h */ diff --git a/vswitchd/bridge.c b/vswitchd/bridge.c index 44aecbb64..071b32477 100644 --- a/vswitchd/bridge.c +++ b/vswitchd/bridge.c @@ -407,6 +407,8 @@ bridge_init(const char *remote) ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version); ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type); ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version); + ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_dpdk_version); + ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_dpdk_initialized); ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id); ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_version); @@ -2837,10 +2839,13 @@ run_status_update(void) * previous one is not done. */ seq = seq_read(connectivity_seq_get()); if (seq != connectivity_seqno || status_txn_try_again) { + const struct ovsrec_open_vswitch *cfg = + ovsrec_open_vswitch_first(idl); struct bridge *br; connectivity_seqno = seq; status_txn = ovsdb_idl_txn_create(idl); + dpdk_status(cfg); HMAP_FOR_EACH (br, node, &all_bridges) { struct port *port; diff --git a/vswitchd/vswitch.ovsschema b/vswitchd/vswitch.ovsschema index 90e50b626..80f17e89b 100644 --- a/vswitchd/vswitch.ovsschema +++ b/vswitchd/vswitch.ovsschema @@ -1,6 +1,6 @@ {"name": "Open_vSwitch", - "version": "7.15.1", - "cksum": "3682332033 23608", + "version": "7.16.0", + "cksum": "2403910601 23776", "tables": { "Open_vSwitch": { "columns": { @@ -47,7 +47,12 @@ "min": 0, "max": "unlimited"}}, "iface_types": { "type": {"key": {"type": "string"}, - "min": 0, "max": "unlimited"}}}, + "min": 0, "max": "unlimited"}}, + "dpdk_initialized": { + "type": "boolean"}, + "dpdk_version": { + "type": {"key": {"type": "string"}, + "min": 0, "max": 1}}}, "isRoot": true, "maxRows": 1}, "Bridge": { diff --git a/vswitchd/vswitch.xml b/vswitchd/vswitch.xml index 3940b8de6..1e27a0220 100644 --- a/vswitchd/vswitch.xml +++ b/vswitchd/vswitch.xml @@ -490,6 +490,11 @@ configuration changes. </column> + <column name="dpdk_initialized"> + True if <ref column="other_config" key="dpdk-init"/> is set to + true and the DPDK library is successfully initialized. + </column> + <group title="Statistics"> <p> The <code>statistics</code> column contains key-value pairs that @@ -673,6 +678,12 @@ </p> </column> + <column name="dpdk_version"> + <p> + The version of the linked DPDK library. + </p> + </column> + </group> <group title="Capabilities"> |