Commit Graph

866 Commits

Author SHA1 Message Date
Daniel Verkamp
4b1f79b5e7 doc: merge ioat and nvme into a single Doxyfile
Add a top-level index page and convert the I/OAT and NVMe main pages
into normal pages.

Change-Id: I4e7c8d2fd43303a8aa56de921037dac96fe8a1a5
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-03-25 09:59:39 -07:00
Daniel Verkamp
cf0871a57e ioat: make channel allocation explicit
Add a parameter to each I/OAT library function that requires a channel
instead of implicitly using the thread-local channel registration model.

I/OAT channels are already reported by the spdk_ioat_probe() attach
callback, so no infrastructure for channel allocation is necessary.

Change-Id: I8731126fcaea9fe2bafc41a3f75c969a100ef8f0
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-03-15 09:50:17 -07:00
Daniel Verkamp
3272320c73 nvme: make I/O queue allocation explicit
The previous method for registering I/O queues did not allow the user
to specify queue priority for weighted round robin arbitration, and it
limited the application to one queue per controller per thread.

Change the API to require explicit allocation of each queue for each
controller using the new function spdk_nvme_ctrlr_alloc_io_qpair().

Each function that submits a command on an I/O queue now takes an
explicit qpair parameter rather than implicitly using the thread-local
queue.

This also allows the application to allocate different numbers of
threads per controller; previously, the number of queues was capped at
the smallest value supported by any attached controller.

Weighted round robin arbitration is not supported yet; additional
changes to the controller startup process are required to enable
alternate arbitration methods.

Change-Id: Ia33be1050a6953bc5a3cca9284aefcd95b01116e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-03-14 16:00:54 -07:00
Daniel Verkamp
9322c25808 doc: add spdk/ path to Doxygen indexes
Reference the public headers in the way that apps should include them
(e.g. spdk/nvme.h rather than just nvme.h).

Change-Id: I0489d906e9c55ff00ffa4e8c9532b0941ce69449
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-02-17 12:18:27 -07:00
Daniel Verkamp
bfd92d4719 nvme: update doc index file with spdk_ prefixes
Change-Id: I5745d1f9af63547b05f4dfdd364f18bcf615f2b0
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-02-11 13:45:58 -07:00
Daniel Verkamp
5cab054f4e ioat: add spdk_ prefixes
Change-Id: Ic42f204a9a4e65661931af2220e8f8ac77242a69
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-02-11 12:35:57 -07:00
Daniel Verkamp
8374a727a9 nvme: refactor nvme_attach() into nvme_probe()
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>
2016-02-03 11:15:31 -07:00
Daniel Verkamp
c02b179490 Remove year from copyright headers.
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>
2016-01-28 08:54:18 -07:00
Daniel Verkamp
b8d31e2454 doc: define away __attribute__ for Doxygen
Doxygen doesn't understand GCC attributes, so use the PREDEFINED setting
to define it to nothing.  Otherwise, Doxygen's parser gets confused on
e.g. packed structs.

Change-Id: I25b2a5fd7cfcc5014408c93d1913128e863dc60c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-01-22 08:56:51 -07:00
Daniel Verkamp
d4ab30ba33 ioat: add user-mode Intel I/OAT driver
The ioat driver supports DMA engine copy offload hardware available on
Intel Xeon platforms.

Change-Id: Ida0b17b25816576948ddb1b0443587e0f09574d4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2015-12-09 10:14:15 -07:00
Daniel Verkamp
8836b6f681 doc: tweak Doxygen footer
Remove the $generatedby string, which contains the current date, causing
diffs whenever the docs are regenerated even if there is no new content.

Change-Id: I2a45a086d464bb23cac4b9ffc802666722c45d06
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2015-11-10 09:31:16 -07:00
Daniel Verkamp
e098976c55 doc: remove reference to nonexistent images dir
Change-Id: Idedc1d0ef978739b1dfb8937b824c7326832e3a7
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2015-09-24 11:24:16 -07:00
Daniel Verkamp
3302fd86f0 doc: use doxygen in quiet mode
Make doxygen only output warnings and errors.  The other informational
output is not that useful.

Change-Id: Iecdcc45ce3a64905815326734e4783ddc45b654b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2015-09-24 11:24:16 -07:00
Daniel Verkamp
ad74310a3a doc: update Doxyfile.nvme
Updated using 'doxyfile -u Doxyfile.nvme'.

No configuration value changes.

Change-Id: I7ad043cb3320804a419ef6353436ebe4572f9a37
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2015-09-22 09:24:40 -07:00
Daniel Verkamp
5b88369cd2 doc: add include/spdk to Doxygen path
Fixes broken links on the main page (public header nvme.h is now in
include/spdk rather than lib/nvme).

Change-Id: If85f9d676602d09f45b6a7607df5a4529f19c7ca
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2015-09-21 15:53:14 -07:00
Daniel Verkamp
1010fb3af1 SPDK: Initial check-in
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2015-09-21 08:52:41 -07:00