diff options
| -rw-r--r-- | MAINTAINERS | 5 | ||||
| -rw-r--r-- | config/rte_config.h | 6 | ||||
| -rw-r--r-- | doc/guides/eventdevs/dlb.rst | 36 | ||||
| -rw-r--r-- | doc/guides/eventdevs/index.rst | 1 | ||||
| -rw-r--r-- | doc/guides/rel_notes/release_20_11.rst | 5 | ||||
| -rw-r--r-- | drivers/event/dlb/meson.build | 15 | ||||
| -rw-r--r-- | drivers/event/dlb/version.map | 3 | ||||
| -rw-r--r-- | drivers/event/meson.build | 2 |
8 files changed, 72 insertions, 1 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index c67fa74523..295a471f60 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1176,6 +1176,11 @@ Cavium OCTEON TX timvf M: Pavan Nikhilesh <pbhagavatula@marvell.com> F: drivers/event/octeontx/timvf_* +Intel DLB +M: Timothy McDaniel <timothy.mcdaniel@intel.com> +F: drivers/event/dlb/ +F: doc/guides/eventdevs/dlb.rst + Intel DLB2 M: Timothy McDaniel <timothy.mcdaniel@intel.com> F: drivers/event/dlb2/ diff --git a/config/rte_config.h b/config/rte_config.h index 64aa333a09..25219f04af 100644 --- a/config/rte_config.h +++ b/config/rte_config.h @@ -135,6 +135,12 @@ /* QEDE PMD defines */ #define RTE_LIBRTE_QEDE_FW "" +/* DLB PMD defines */ +#define RTE_LIBRTE_PMD_DLB_POLL_INTERVAL 1000 +#define RTE_LIBRTE_PMD_DLB_UMWAIT_CTL_STATE 0 +#undef RTE_LIBRTE_PMD_DLB_QUELL_STATS +#define RTE_LIBRTE_PMD_DLB_SW_CREDIT_QUANTA 32 + /* DLB2 defines */ #define RTE_LIBRTE_PMD_DLB2_POLL_INTERVAL 1000 #define RTE_LIBRTE_PMD_DLB2_UMWAIT_CTL_STATE 0 diff --git a/doc/guides/eventdevs/dlb.rst b/doc/guides/eventdevs/dlb.rst new file mode 100644 index 0000000000..c71d22ae7d --- /dev/null +++ b/doc/guides/eventdevs/dlb.rst @@ -0,0 +1,36 @@ +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2020 Intel Corporation. + +Driver for the Intel® Dynamic Load Balancer (DLB) +================================================= + +The DPDK dlb poll mode driver supports the Intel® Dynamic Load Balancer. + +Prerequisites +------------- + +Follow the DPDK :ref:`Getting Started Guide for Linux <linux_gsg>` to setup +the basic DPDK environment. + +Configuration +------------- + +The DLB PF PMD is a user-space PMD that uses VFIO to gain direct +device access. To use this operation mode, the PCIe PF device must be bound +to a DPDK-compatible VFIO driver, such as vfio-pci. + +Eventdev API Notes +------------------ + +The DLB provides the functions of a DPDK event device; specifically, it +supports atomic, ordered, and parallel scheduling events from queues to ports. +However, the DLB hardware is not a perfect match to the eventdev API. Some DLB +features are abstracted by the PMD (e.g. directed ports), some are only +accessible as vdev command-line parameters, and certain eventdev features are +not supported (e.g. the event flow ID is not maintained during scheduling). + +In general the dlb PMD is designed for ease-of-use and does not require a +detailed understanding of the hardware, but these details are important when +writing high-performance code. This section describes the places where the +eventdev API and DLB misalign. + diff --git a/doc/guides/eventdevs/index.rst b/doc/guides/eventdevs/index.rst index 738788d9e7..f5b69b39da 100644 --- a/doc/guides/eventdevs/index.rst +++ b/doc/guides/eventdevs/index.rst @@ -11,6 +11,7 @@ application through the eventdev API. :maxdepth: 2 :numbered: + dlb dlb2 dpaa dpaa2 diff --git a/doc/guides/rel_notes/release_20_11.rst b/doc/guides/rel_notes/release_20_11.rst index e1b9cc1112..f1a6925678 100644 --- a/doc/guides/rel_notes/release_20_11.rst +++ b/doc/guides/rel_notes/release_20_11.rst @@ -295,6 +295,11 @@ New Features Added performance tuning arguments to allow tuning the scheduler for better throughtput in high core count use cases. +* **Added a new driver for the Intel Dynamic Load Balancer v1.0 device.** + + Added the new ``dlb`` eventdev driver for the Intel DLB V1.0 device. See the + :doc:`../eventdevs/dlb` eventdev guide for more details on this new driver. + * **Added a new driver for the Intel Dynamic Load Balancer v2.0 device.** Added the new ``dlb2`` eventdev driver for the Intel DLB V2.0 device. See the diff --git a/drivers/event/dlb/meson.build b/drivers/event/dlb/meson.build new file mode 100644 index 0000000000..68cb0aede3 --- /dev/null +++ b/drivers/event/dlb/meson.build @@ -0,0 +1,15 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2019-2020 Intel Corporation + +if not is_linux or not dpdk_conf.has('RTE_ARCH_X86_64') + build = false + reason = 'only supported on ARCH_X86_64 Linux' + subdir_done() +endif + +sources = files( +) + +headers = files() + +deps += ['mbuf', 'mempool', 'ring', 'pci', 'bus_pci'] diff --git a/drivers/event/dlb/version.map b/drivers/event/dlb/version.map new file mode 100644 index 0000000000..4a76d1d52d --- /dev/null +++ b/drivers/event/dlb/version.map @@ -0,0 +1,3 @@ +DPDK_21 { + local: *; +}; diff --git a/drivers/event/meson.build b/drivers/event/meson.build index c433c10c6a..c1a6990a04 100644 --- a/drivers/event/meson.build +++ b/drivers/event/meson.build @@ -5,7 +5,7 @@ if is_windows subdir_done() endif -drivers = ['dlb2', 'dpaa', 'dpaa2', 'octeontx2', 'opdl', 'skeleton', 'sw', +drivers = ['dlb', 'dlb2', 'dpaa', 'dpaa2', 'octeontx2', 'opdl', 'skeleton', 'sw', 'dsw'] if not (toolchain == 'gcc' and cc.version().version_compare('<4.8.6') and dpdk_conf.has('RTE_ARCH_ARM64')) |