Rename all functions with a spdk_ prefix, and provide enough of an API
to avoid apps needing to #include <pciaccess.h>.
The opaque type used in the public API for a PCI device is now
struct spdk_pci_device *.
Change-Id: I1e7a09bbc5328c624bec8cf5c8a69ab0ea8e8254
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This is a step toward abstracting PCI access so that libpciaccess can be
swapped out more easily.
Change-Id: I5491459460cbfbd0be471f70f9d07a7eb3175234
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This patch did the work to use pci related functions
provided by DPDK.
Change-Id: I263b79f1b42868ef0c1efcf1bc392a4b3a328e93
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
With CONFIG_PCIACCESS=y in CONFIG file, we can
use libpciaccess library; With CONFIG_PCIACCESS=n
in CONFIG file, we use pciaccess functions provided
in DPDK.
Change-Id: I786c5589b8e7909ba2e59d222938dd5ba45bf92d
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
The new probing API will find all NVMe devices on the system and ask the
caller whether to attach to each one. The caller will then receive a
callback once each controller has finished initializing and has been
attached to the driver.
This will enable cleanup of the PCI abstraction layer (enabling us to
use DPDK PCI functionality) as well as allowing future work on parallel
NVMe controller startup and PCIe hotplug support.
Change-Id: I3cdde7bfab0bc0bea1993dd549b9b0e8d36db9be
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Also add a space between Copyright and (c).
The copyright year can be determined using git metadata.
Also remove the duplicated "All rights reserved." - every instance of
this line already has a corresponding "All rights reserved" immediately
below it, except for examples/ioat/kperf/kmod/dma_perf.c, where I have
added it manually.
Performed using this command:
git ls-files | xargs sed -i -e 's/Copyright(c) \(.*\) Intel Corporation. All rights reserved./Copyright (c) Intel Corporation./'
Change-Id: I3779f404966800709024eb1eb66a50068af2716c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Rename the nvme_free_request macro to nvme_dealloc_request to match
nvme_alloc_request and add a wrapper function to nvme.c so that the
macro contents are only expanded once.
The DPDK nvme_impl.h uses rte_mempool_put(), which generates a large
amount of code inline. Moving this macro expansion to a wrapper
function avoids inlining it in the multiple places nvme_free_request()
gets called, most of which are error handling cases that are not in the
hot I/O path.
Change-Id: I64ea9c39ba47e26672eee8d5058f1489e07eee5b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
GCC generates a series of 64-bit MOV instructions for the memcpy() into
the submission queue. We can do better with 128-bit SSE2 instructions.
DPDK already has a memcpy implementation that is optimized for small
inline copies, so use it instead of memcpy.
Change-Id: I5f09259b4d5cb089ace4a8ea6d2078c03fee84f3
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
