Commit Graph

46 Commits

Author SHA1 Message Date
Shuhei Matsumoto
7c7a0c0a68 nvmf: Pass not num_buffers but length to spdk_nvmf_request_get_buffers()
The subsequent patches unifies getting buffers, filling iovecs, and
filling WRs in a single API. This is a preparation.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I077c4ea8957dcb3c7e4f4181f18b04b343e9927d
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/468953
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Seth Howell <seth.howell@intel.com>
2019-09-26 16:12:28 +00:00
Shuhei Matsumoto
22cd4fe2ce nvmf: Check buffer array overflow in spdk_nvmf_request_get_buffers()
This patch makes multi SGL case possible to call spdk_nvmf_request_get_buffers()
per WR.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I977ebb0c6b2a67218c9b6fc20dc26a93a6ec770b
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/468943
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Seth Howell <seth.howell@intel.com>
2019-09-26 16:12:28 +00:00
Shuhei Matsumoto
79945ef0ed nvmf: Hold number of allocated buffers in struct spdk_nvmf_request
This patch makes multi SGL case possible to call spdk_nvmf_request_get_buffers()
per WR.

This patch has an unrelated fix to clear req->iovcnt in
reset_nvmf_rdma_request() in UT. We can do the fix in a separate patch
but include it in this patch because it is very small.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: If6e5af0505fb199c95ef5d0522b579242a7cef29
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/468942
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Seth Howell <seth.howell@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-09-26 16:12:28 +00:00
Shuhei Matsumoto
9796768132 nvmf: Move pending_data_buf_queue to common struct spdk_nvmf_transport_poll_group
This unifies buffer management among transports further and is a
preparation to make buffer allocation asynchronous.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I8c588eeac4081f50fe32605feb7352f72c628d95
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/466847
Reviewed-by: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Anil Veerabhadrappa <anil.veerabhadrappa@broadcom.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-09-09 00:42:22 +00:00
Shuhei Matsumoto
cc4d1f82cc nvmf: Add spdk_nvmf_request_get/free_buffers() usable among transports
This patch adds new APIs spdk_nvmf_request_get_buffers() and
spdk_nvmf_request_free_buffers() to be used among transports.
Subsequent patches will replace transport specific APIs by them.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ib153e2c5806b7276915a0aa91179fe9dbcb2a1f0
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/465874
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Anil Veerabhadrappa <anil.veerabhadrappa@broadcom.com>
Reviewed-by: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2019-08-29 18:17:38 +00:00
Anil Veerabhadrappa
ed56a3d482 NVMe-oF Target: Add FC transport.
- New files and updates to existing SPDK files to add the NVMf-FC transport.
  - Depends on an existing low level driver library. This driver is not part of SPDK repository.
  - Makefile updates to build FC transport (using CONFIG_FC)
  - Update configure script for FC build.
  - New FC unit test for FC-LS commands.
  - Update unittest.sh to run FC unit test (when built).

Signed-off-by: John Barnard <john.barnard@broadcom.com>
Signed-off-by: Anil Veerabhadrappa <anil.veerabhadrappa@broadcom.com>
Change-Id: If31d4d25feab76c2dbe90a7faf71d465c2c3a354
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/450077
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2019-07-26 22:17:17 +00:00
Evgeniy Kochetov
43bb4e6b1f rpc: Add NVMf transport statistics to nvmf_get_stats RPC method
This patch adds transport part to nvmf_get_stats RPC method and basic
infrastructure to report NVMf transport specific statistics.

Signed-off-by: Evgeniy Kochetov <evgeniik@mellanox.com>
Change-Id: Ie83b34f4ed932dd5f6d6e37897cf45228114bd88
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/452299
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-07-26 20:30:00 +00:00
Ziye Yang
960460f0d1 nvmf: add spdk_nvmf_transport_get_optimal_poll_group
Add the optimal poll group get function.

Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Change-Id: Ia9e57c6924a6563d79269cf535814883e83698cd
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/454549
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
2019-07-10 02:30:41 +00:00
Jim Harris
a95fdad68f nvmf: remove unnecessary size checks when creating transport
The individual transports will adjust these sizes when
necessary.  In fact, we have to remove this check, since
RDMA transport may adjust the io_unit_size based on the
max number of SGEs - and can adjust it to a value that
will fail this check if we reload the configuration.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I2708c7f5aaa54a368ec932ec40dd6447f1a4fde0

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/452474
Reviewed-by: Seth Howell <seth.howell5141@gmail.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-05-02 14:44:57 +00:00
Ben Walker
527be2bf4e nvmf: Remove qpair_is_idle
This wasn't used anywhere.

Change-Id: I405af3c808be284d19218f3f04c1e90e33e31de8
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/446977
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ziye Yang <ziye.yang@intel.com>
2019-03-15 19:19:17 +00:00
Seth Howell
bdc81134c2 nvmf: use io unit size in transport buffer pools
When this structure was brought up to the generic layer, the tcp
transport was using max_io_size and the rdma transport was using
io_unit_size. In the interest of conserving memory, we should use
io_unit_size instead of max_io_size.

Change-Id: I2633306fcbfd8c3d557445959c745cb2d9a0999e
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/c/442778
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2019-02-12 23:34:20 +00:00
Seth Howell
8cb172f2a9 nvmf/transport->add per-pg cache
This is implemented at a generic level.

Change-Id: Ibf8167e828f8da27cc26cd04e611c3f3c084319a
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/c/440418
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2019-01-18 16:57:37 +00:00
Seth Howell
e28605f47a nvmf/transport: move buffer_pool to generic struct.
This is shared between all currently valid transports. Just move it up
to the generic structure. This will make implementing more shared
features on top of this a lot easier.

Change-Id: Ia896edcb7555903ba97adf862bc8d44228df2d36
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/c/440416
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-01-17 19:42:01 +00:00
Evgeniy Kochetov
d722a1742d nvmf: Improve error handling in spdk_nvmf_transport_poll_group_create
At least in case of RDMA transport, poll_group_create (spdk_nvmf_rdma_poll_group_create)
 can return error (NULL).

Change-Id: If1576b3515e7f9ede76af08bfa6b1c8399dcda09
Signed-off-by: Sasha Kotchubievsky <sashakot@mellanox.com>
Signed-off-by: Evgeniy Kochetov <evgeniik@mellanox.com>
Reviewed-on: https://review.gerrithub.io/436887
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2018-12-14 16:15:48 +00:00
Ziye Yang
527c825c81 nvmf: Re-add spdk_nvmf_transport_poll_group_remove
For TCP/IP transport, we need to remove the socket
from the polling group since we do not want to keep the
tgroup info in the NVMe/TCP qpair, it should be general.

Change-Id: I4b064d8378f66ea5d91ac554fe628d9ccebd07f4
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/434128
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2018-12-13 02:41:14 +00:00
Ziye Yang
e956be96eb nvme: Add the NVMe over fabrics TCP/IP transport support
It is the first patch to follow the NVMe over fabrics
spec and implmenent the NVMe/TCP transport. It can be
divided into work in the host and target sides:

Host side: Add the TCP/IP transport in nvme lib (lib/nvme).
Target side: Add the TCP/IP transport in nvmf lib (lib/nvmf).

Change-Id: Idc4f93750df676354f6c2ea8ecdb234e3638fd44
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/425191
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-11-19 20:36:05 +00:00
Seth Howell
433a1e7b67 nvmf: add functions for iterating over transports
Part of a larger series aimed at exposing NVMe-oF transports though rpc
and spdkcli. This is in line with the goal of initializing all NVMe-oF
options on a per-transport basis.

Change-Id: I4f07d58d49b925cf51df3980d2e2161c50169cee
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/430622
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-11-02 18:04:06 +00:00
Pawel Wodkowski
c4fee1e970 mk: don't use '-include spdk/config.h'
Each file that need to check SPDK_CONFIG_* options need to include
spdk/config.h explicitly.

Change-Id: If9f2a91ac4c2b1a300dcf88ec3e2a12714ad344a
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/427221
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>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
2018-10-02 23:13:32 +00:00
John Barnard
183d81d0c6 nvmf: Move target opts to transport opts (part 2)
- Add independent functions to create transport with specific opts
  and add to target while maintaining backward compatibility with
  current apps and rpc configuration that still use the add listener
  method to create a transport.
- Add new rpc function to create transport and add to target.
  + Update json reporting to include new rpc function.
  + Update python scripts to support new rpc function.
  + New nvmf test script (cr_trprt.sh) to test new rpc function.

Change-Id: I12d0a42e34c9edff757755f18a78b722d5e1523e
Signed-off-by: John Barnard <john.barnard@broadcom.com>
Reviewed-on: https://review.gerrithub.io/423590
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-09-17 20:42:16 +00:00
Ben Walker
f10a91ed0d nvmf: Add function to get local addr for a qpair
Change-Id: I19b9834c709bf97b1bbc1a9278b8c3b9350546e2
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/425185
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-09-11 15:23:33 +00:00
Ben Walker
311ce0e2ee nvmf: Add a function to get the listen addr for a qpair
The function returns the transport ID describing the
listen address on which the connection originated.

Change-Id: Ib11cddb8ff2ceb04a5f3ce236ba96c68b7226773
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/425023
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: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-09-11 15:23:33 +00:00
Ben Walker
8f64db180e nvmf: Add a function to get the source address for a qpair
Change-Id: I6ae1f380aebbcf090a0ff31ff96fc4592fc29591
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/421173
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: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-09-07 16:03:06 +00:00
John Barnard
8e8084903e nvmf: Move target opts to transport opts (part 1)
- Move most of the target opts from nvmf_tgt to nvmf_transport.
  - Update transport create functions to pass in transport opts.
  - When transport opts are NULL in transport create function, use
    target opts. (for backward compatiblity)
  - Part 1 of 2 patches. Part 2 (to follow after part 1 accepted)
    will allow independent creation of transport with specific opts
    while maintaining backward compatibility with current apps and
    rpc configuration that still use the add listener method to
    create a transport.

Change-Id: I0e27447c4a98e0b6a6c590541404b4e4be879b47
Signed-off-by: John Barnard <john.barnard@broadcom.com>
Reviewed-on: https://review.gerrithub.io/423329
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>
2018-08-27 20:43:53 +00:00
Ben Walker
ed60507d5e nvmf: Queue pairs can no longer be removed from poll groups
In RDMA, qpairs can't be removed from poll groups because
the poll group defines the completion queue. So don't
allow this operation anymore, even if it were theoretically
possible on other transports.

Change-Id: I69a3d1b336decd2d25e43ddea94f8b2095ef662f
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/421174
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
2018-08-13 18:57:45 +00:00
Seth Howell
388e310150 nvmf: add free_req function pointer.
At times, it may be necessary to free requests without completing them.
For example, when freeing a qpair, one needs to free the AER sent from
the host before deleting the qpair. It is important not to send a
completion for the AER because:
1. According to the spec, this will trigger the host to send another AER
2. No Asynchronous Events have occured, so we should not complete the
AER.

Change-Id: I92e163f0fed0ee2bc942569a647cb3c1967edec9
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/419732
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>
2018-07-27 20:50:36 +00:00
Xiaodong Liu
5cd1b16a50 nvmf: redundant spdk_nvmf_transport assignment
Redundant with lib/nvmf/rdma.c spdk_nvmf_rdma_create,
line 1177 and 1178:
rtransport->transport.tgt = tgt;
rtransport->transport.ops = &spdk_nvmf_transport_rdma;

Change-Id: Id680c5537aa3df70d6f8c148aa8dc2726ccf8877
Signed-off-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/415203
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-06-14 17:44:27 +00:00
Ben Walker
8b79ef3372 nvmf: Remove poll group from controller
Now rely entirely on the user to create and poll
the poll groups.

Change-Id: I66baaa2d0f493390a055a32e6c902f5e2f574534
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/385954
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-12-12 15:01:17 -05:00
Ben Walker
7c6ca97834 nvmf: Move all struct definitions to nvmf_internal.h
This is not a public API, so simplify the number
of internal header files where important types
are defined.

Change-Id: I115d0497d37e3cfe399c3a5b2546d20aa4fe24b4
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/376249
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-09-01 12:43:26 -04:00
Ben Walker
c1535ca0af nvmf: Poll groups can now span transports
We are still creating one poll group per controller,
so this isn't particularly useful just yet.

Change-Id: I65c54385bdba587d4b1098629727877970d39277
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/376241
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-09-01 12:43:26 -04:00
Ben Walker
d5ce9cff63 nvmf: Transport polling now done by poll group
Instead of polling each individual qpair, polling is now
done by poll group. This allows transports to use more
efficient polling schemes in the future.

The RDMA transport as of this patch still just loops
over each qpair in the group and polls it individually,
so this patch results in no performance change yet.

Change-Id: I0f63f0dbbc5fd43c1e0d9729b10b37c2cb0d9881
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/376239
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-30 15:07:22 -04:00
Ben Walker
6428de9e34 nvmf: Remove spdk_nvmf_listen_addr
Everywhere this is used, we can just use
spdk_nvme_transport_id instead.

Change-Id: I407c812cd6a1ca3afcb3d1fe87c7e22183b09d7a
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/375461
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-29 14:59:33 -04:00
Ben Walker
baa936a173 nvmf: Replace transport controller with poll_group
For now, this is a name change of controller to poll_group
in the transport layer. Over time, the poll_group will
become a more general concept than a controller, allowing
for qpairs to be spread across cores.

Change-Id: Ia92a2934541ad336f462f73175d53aaaf021f67b
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/371775
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-11 19:44:35 -04:00
Ben Walker
7e3b9f25ba nvmf: Clarify transport API for listen and accept
There are now three simple functions on the transport:

listen(transport, trid)
stop_listen(transport, trid)
accept(transport)

This makes the code quite a bit simpler.

Change-Id: I550343a084b5c095240703952c8c07ae535b5c16
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/371774
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-08-08 15:46:28 -04:00
Ben Walker
a4e28342a8 nvmf: Add wrappers for transport calls
Instead of scattering direct calls to the function
callbacks throughout the code, add some wrappers.
This will make some later refactoring marginally
easier.

Change-Id: If735089967e3ce828dcff68f2430e7810bf2f123
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/371749
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-08-08 15:46:28 -04:00
Ben Walker
31d033f944 nvmf: Transports are no longer global
Create one transport per nvmf target. Today, there is just
one global nvmf target, but this paves the way for multiple.

Change-Id: Iaa1f8c5e7b3c1e87621ef2a636c68c2dd8fd929e
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/371748
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-08-08 14:09:45 -04:00
Ben Walker
29f6172a56 nvmf: Use trtype enum in transport instead of strings
Change-Id: Ie05f58e677107072fea6cc7702bab47a077cb595
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/370743
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-08-07 17:07:58 -04:00
Ben Walker
b961d9cc12 include: Move the remainder of the code base to stdinc.h
Change-Id: I6a142feeaad3117bd3c75e7c5cb7231a1cfa78ae
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2017-05-08 13:20:36 -07:00
Daniel Verkamp
b58a5d73ef util: add SPDK_COUNTOF() array size macro
SPDK_COUNTOF works like sizeof, except it returns the number of elements
in an array instead of the number of bytes.

Change-Id: I38ff4dd3485ed9b630cc5660ff84851d0031911f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-03-07 12:43:42 -07:00
Ben Walker
b43db69a44 nvmf: Remove spdk_nvmf_transport from public API
The details of the structure were removed earlier, but
now remove all references even to a pointer to the
structure. The user can refer to transports by their
string name.

Change-Id: I273356f46329ea5372dcd951eda6f14767477d69
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-11-16 08:11:46 -07:00
Ben Walker
93ab45d68c nvmf: Add an accessor for transport name
This allows the entire transport structure definition
to become private.

Change-Id: I9ca19edbfc3cfb75b9b113a89bb2b90bc499ab16
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-10-14 15:26:45 -07:00
Ben Walker
1e6ffa0394 nvmf: Add a public API header
This changes as little code as possible while still creating
a single public API header. This enables future clean up
of the public API and clarification of the exposed
concepts.

Change-Id: I780e7a5a9afd27acf0276516bd71b896ad301c50
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-10-14 15:26:31 -07:00
Ben Walker
a0a92ff4c2 nvmf: Combine acceptor_init/fini with transport init/fini
These 4 callbacks can be condensed into two callbacks, which
simplifies the API.

Change-Id: I069da00de34b252753cdc8961439e13a75d1cc68
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-10-07 09:14:53 -07:00
Daniel Verkamp
4c6e4d4963 nvmf: move acceptor poller into nvmf_tgt app
The NVMe over Fabrics target library now exposes a simple function call
that polls the acceptor once, and the application handles registration
of the poller.

Also rename the transport function pointers related to the acceptor so
they better reflect their purpose.

Change-Id: I5fa0d516586bf17e73afeb88ff3c2d5b0d46794d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-08-17 10:01:37 -07:00
Daniel Verkamp
0c00baf9bc nvmf: move conf file parsing to nvmf_tgt app
Change-Id: Iaf09d39046bceae023739d49e31804e150bb19d4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-08-17 10:01:37 -07:00
Ben Walker
756df04485 nvmf: Remove g_nvmf_tgt global usage from transport layer
Change-Id: Id788312f597abf6ea937beb7d1d1bd5a168ae0f0
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-07-26 14:24:39 -07:00
Daniel Verkamp
21c450e187 nvmf: add transport function pointer table
Make the core NVMf to transport interface generic and allow for multiple
transport types to be registered.

Change-Id: I0a2767a47d55999c45f788ae1318bb50af60ab4e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-07-15 13:11:03 -07:00