Now that even DPDK 16.11 (LTS) reaches its end of life in
November 2018, we can surely drop support for DPDK
versions older than that.
The PCI code will go through a major refactor soon, so this
patch cleans it up first.
Since this is the very first SPDK patch that drops support
for older DPDK versions, it also introduces an #error
directive that'll directly fail the build if the used DPDK
lib is too old.
Change-Id: I9bae30c98826c75cc91cda498e47e46979a08ed1
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/433865 (master)
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/448369
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Despite the scary commit title, this patch just unifies
per-driver mutexes into a single pci mutex.
On each hotplug we modify some DPDK global resources,
which per-driver locks aren't sufficient for. If
multiple threads try to attach devices at the same time,
then we'll likely have a data race. DPDK hotplug APIs
don't provide any kind of thread safety on their own.
Change-Id: I89cca9fea04ecf576ec5854c662bae1d3712b3fb
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/433864 (master)
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/448368
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
We used to support it by default in our DPDK forks,
but starting with DPDK 18.08, a new PCI driver flag
RTE_PCI_DRV_WC_ACTIVATE is required.
We enable now it for NVMe and Virtio, but not for I/OAT,
as our I/OAT driver currently assumes strong memory
ordering, which prefetchable resources do not provide.
Change-Id: I1a13356e28535981153b3d3e52bfe9d66b6172af
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/422239
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This avoids registering PMDs that are not used by a given
application. For example, an app may wish to *not* use
ioat - in this case, ioat PMD would not be registered with
DPDK, and we would not waste time probing these devices
when probing other devices like NVMe.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: If378e40bde9057c7808603aa1918bcfe80fa0e9d
Change the PCI enumeration API to individual functions per device type
so that only the drivers that are actually in use get linked into the
final executable. All of the common code is still shared internally in
the env_dpdk library.
Change-Id: I2ba83afe59202a510f999a0674e23e60b6581221
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
