The next_sge callback can be called multiple times for a single I/O if
the I/O is split. Get the physical address for each element once
instead of every time the SGL is walked.
Also bake the SGL element offset into the physical address.
Change-Id: I5d83426a234ffe9d13b89621077dbbb1561181c9
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Also use uint32_t consistently for counting SGL elements.
Change-Id: Ibeffffdc5e0eccd11681703cd333bfb64319e164
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This allows us to test elements with particular (mis-)alignments without
depending on the internal behavior of the DPDK allocator.
Change-Id: I006358b82ae3a677353333954ba88d1bcfe289f6
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
There's no reason to use the system-defined iovec structure; we only use
it for our internal scatter-gather callbacks. Define our own structure
so it can be extended.
Change-Id: Ifc055adfdae8cddd53e7f5d638a24f1e812b1ac6
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This helps identify which iteration of the test failed.
Change-Id: I9186de08ea8217348b8ee61b0ecba4e9d7ab986e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
fgets() will return NULL if it encounters EOF.
Change-Id: I35b1744514f2a90d6e95156c3916a18c1a4ecce2
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
If the controller is failed, attempting to submit additional I/O is
futile - it will be immediately failed using the completion callback,
which can result in infinite recursion if the application code resubmits
I/Os on failure.
Instead, provide a way for request submission to indicate failure, and
use it to exit early if the controller is failed; this can only happen
when a reset failed (timed out).
If a request is submitted directly by the user when the controller has
failed, we can return an error code directly. For the case where I/O
was queued and is being resubmitted after a reset, we still need to call
the completion handler via _nvme_fail_request_ctrlr_failed().
Change-Id: I9e144328d524b25db2acf48e923b584746e8d0b6
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This test is only intended to validate functionality, not actual
performance, so one second is plenty.
Change-Id: I2ff198c035226b50a113f9ff189c1abbd0fd1c17
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Since the individual build steps include the path now, the subdirectory
printouts are less useful (especially with parallel make, where output
from multiple subdirs gets mixed together).
Change-Id: Ied71d39b360b847ca32ccd3547def751ddd9434c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Provide a new structure, spdk_nvme_ctrlr_opts, to let the user modify
the default controller initialization options during probe/attach.
Currently, only the number of queue pairs can be modified in this way;
other options will be added later.
Change-Id: Ie27b9429291d93a9353c0d820f0ad467d3b0e7cb
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
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>
Replace the previous code that allocated each tracker individually with
one large allocation per queue pair.
struct nvme_tracker is now explicitly padded to reach exactly 4096 bytes
to allow normal array indexing to work correctly while maintaining the
alignment requirement that ensures each tracker's PRP list does not
cross a page boundary.
This also allows removal of the act_tr array, since the tr array can be
indexed directly now, and each tracker can store its own active state.
Change-Id: Ia7c51735b96594d12f7f478cefcc4aedc84207ad
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
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>
Since the nvme_tracker struct was extended to allow space for 253 SGL
descriptors at 16 bytes each, we can use the same amount of space in the
other branch of the union to store 506 PRP list entries at 8 bytes each.
This increases the maximum supported I/O size for PRP-only devices from
128 KB to slightly under 2 MB.
Change-Id: I2b9905be41343ff360b4cdaccca87ea6f753e89c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Also add a compile-time assert to make sure this doesn't accidentally
break again in the future.
Change-Id: I4d18cfbf21392291e1bdd76eff055429009d28d6
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
nvme_ctrlr_cmd_create_io_cq() was using the queue ID as the
IV (Interrupt Vector) field in the Create I/O Completion Queue command.
Since the SPDK NVMe driver does not enable interrupts, this is
misleading at best.
Change-Id: I3ea53701fdb9f21d9dc8d8fe20ccf2833b76cfbf
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This is very minimal and needs to be expanded, but
at least point the users at the examples as the next
place to go.
Change-Id: I74025f7addb994f97d01accb89d2e9bc870740bf
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
* List the components in the development kit
* Mention the examples directory
* Add installation commands for dependencies
Change-Id: I31302b3cd2e5df4f24b8da30af66f9f1daa11eaa
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
This patch just implement the feature of format progress indicator.
the NVMe available does't support FPI currently.
Change-Id: Ie937591fb1720d8a062354322aabcc95ff14b2d3
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
This field is write-only in the current code; the NVMe library does
not track timeouts on requests.
Change-Id: I50e53bb3c299bf16912c48be8aad3eec829154af
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
When I/O spans a stripe boundary, the driver splits the request into
multiple requests, so for 1 segment memory larger than the stripe
size, we also need to split the segment memory.
Change-Id: I22ea5734d7066865a57a3c90fe18d5f76f373f1d
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Import the release notes from previous releases and fill out the major
features for the next release.
Change-Id: I5050d6cc83a92fac4f1dbed5f7ef039cca208765
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
For example, if the source code is located in a directory called "spdk",
don't print the "spdk/" prefix on all of the directories.
Change-Id: I9adc650b13e013773450c721c8434c6e5afeecc2
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This makes it somewhat clearer what is happening during parallel
builds (make -j).
Change-Id: Ibbe8862da7600e784cba64cd333086f1473455ac
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Remove the common code that was factored out to spdk.common.mk.
Change-Id: I2a6265fa144b2c03f3484e2aa528fd1e15d13429
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Also switch from %d to %i to allow either decimal or hexidecimal input.
Change-Id: Ia866f9ab804d09e4bf8a2726b8db99208637a5ed
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Add CUnit test case to verify payload_offset value in split_test4
Change-Id: I4a9a33854295ed802709bbe4f11746d284ed8cbd
Signed-off-by: Liang Yan <liangx.yan@intel.com>
Add test case which verify invalid second phys_addr would cause
_nvme_fail_request_bad_vtophys be called.
Change-Id: Id1b62e249b7192e29334bd7cab33815722f5662d
Signed-off-by: Liang Yan <liangx.yan@intel.com>
This way, they are listed in a consistent order across runs.
Change-Id: Ie920f4e0c2763efb6c1d2856b5ed0f57ecbe48c8
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Don't keep prompting the user for input if the controller doesn't
support the NS management command.
Change-Id: I5bf001657ca1cbbdbf33cafff2509ade2d47bd9d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This doesn't need to be stored in the device struct, since it is only
used within ns_attach(), and it is freed at the end of the function.
Change-Id: I0d4a14a6743e8cbf9e8f1a6c19c68cf0dfc2bab2
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This doesn't need to be stored in the device struct, since it is only
used within ns_manage_add(), and it is freed at the end of the function.
Change-Id: If725408026736d4ef9a0695ab28bc30e6648932e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
For those NVMe controllers which can support SGL feature in
firmware, we will use SGL for scattered payloads.
Change-Id: If688e6494ed62e8cba1d55fc6372c6e162cc09c3
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
nvme_spec.h already has a structure with the correct bitfields for the
CSTS register, so use it in struct spdk_nvme_registers.
Change-Id: Id0663aee2611fb5195f9012a3176799e32701bb0
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This will be exposed in the public API. This rename is in a separate
commit to ease review.
Change-Id: I1b7fef36f85265db27935ac4d22ceef3c7282502
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Set up the infrastructure for creating I/O submission queues with
variable queue priority (QPRIO in Create I/O SQ command).
Currently, this is unused, since we always use the default arbitration
method (round robin), but it will allow reinitializing submission queues
with the correct priority once weighted round robin is supported.
Change-Id: I425003879e624cfcc9687bdc495b5c1726b5a8af
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
