This patch adds NVMe submission/completion queue pair definitions.
These definitions are required to keep track of outstanding NVMe
requests. The admin queue pair is now instantiated with the minumum
number of entries (2).
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I2ced3ce7d210408d66cc17de1e66d86b1a1dbf79
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6671
Community-CI: Broadcom CI
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
The NVMe devices can now be enumerated, attached, and detached. To
simplify the driver, the probing step has been omitted - all available
controllers are attached and need to be detached later.
The driver registers itself as a PCI driver via a call to
SPDK_PCI_DRIVER_REGISTER() and then uses spdk_pci_enumerate() to
enumerate available NVMe devices and attach them.
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: Id03e2f4365f4f7ca98178be70278d0c4b7b34b26
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6664
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This patch introduces initial definitions for a stripped down version of
an out-of-tree NVMe driver. It's purpose is to showcase SPDK's
interfaces for writing user-space drivers for various types of devices.
The choice of NVMe as the example is based on the fact that it can be
emulated by QEMU and the code can be borrowed from SPDK's regular NVMe
driver.
This driver will only provide the most basic functionalities (e.g.
device probing, controller initialization, only admin queue support,
etc.) and won't have support for any device quirks. Therefore, it's
only intented to be used with emulated devices.
In addition, an application utilizing the driver to list all available
NVMe controllers and print their identify data will be added. It'll
be a very basic, stripped down version of `examples/nvme/identify`.
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I67c748aabf75a37ca72dfb74301a610f7c4ae2bc
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6663
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
