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Spdk/include/spdk
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Jim Harris bb926e803d nvmf: make poll groups count unassociated qpairs 
We make decisions on how to pick a poll group for a new
qpair by looking at each poll group's current_io_qpairs
count.  But this count isn't always accurate since it
doesn't get updated until after the CONNECT has
been received.

This means that if we accept a bunch of connections
all at once, they may all get assigned the same poll
group, because the target poll groups counter doesn't
get immediately incremented.

So add a new counter, current_unassociated_qpairs,
to account for these qpairs.  We protect this counter
with a lock, since the accept thread will increment
the counter, and the poll group thread will
decrement it when the qpair receives the CONNECT
allowing us to associated with a subsystem/controller..

If the qpair gets destroyed before the CONNECT is
received, we can use the qpair->connect_received
flag to decrement current_unassociated_qpairs.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I8bba8da2abfe225b3b9f981cd71b6f49e2b87391
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15693
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
2022-12-01 10:57:29 +00:00
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accel.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
assert.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
barrier.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
base64.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
bdev_module.h bdev: use spinlock instead of mutex 2022-11-24 10:08:17 +00:00
bdev_zone.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
bdev.h bdev: support to get histogram per channel 2022-11-29 08:28:57 +00:00
bit_array.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
bit_pool.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
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blob.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
blobfs_bdev.h build: compile API functions with missing deps 2022-11-18 08:40:05 +00:00
blobfs.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
conf.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
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crc16.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
crc32.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
dif.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
dma.h Replace most BSD 3-clause license text with SPDX identifier. 2022-06-09 07:35:12 +00:00
endian.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
env_dpdk.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
env.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
event.h lib/rpc: add RPC allow list 2022-11-15 08:31:02 +00:00
fd_group.h util: add function spdk_fd_group_get_epoll_event 2022-11-22 10:01:43 +00:00
fd.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
file.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
ftl.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
gpt_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
hexlify.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
histogram_data.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
idxd_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
idxd.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
init.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
ioat_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
ioat.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
iscsi_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
json.h json: add spdk_json_write_named_double 2022-11-22 10:01:43 +00:00
jsonrpc.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
likely.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
log.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
lvol.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
memory.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
mmio.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nbd.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
notify.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvme_intel.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvme_ocssd_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvme_ocssd.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvme_spec.h nvmf: Add copy command support 2022-11-30 08:50:06 +00:00
nvme_zns.h Replace most BSD 3-clause license text with SPDX identifier. 2022-06-09 07:35:12 +00:00
nvme.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvmf_cmd.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvmf_fc_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvmf_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
nvmf_transport.h nvmf: make poll groups count unassociated qpairs 2022-12-01 10:57:29 +00:00
nvmf.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
opal_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
opal.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
pci_ids.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
pipe.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
queue_extras.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
queue.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
reduce.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
rpc.h lib/rpc: add RPC allow list 2022-11-15 08:31:02 +00:00
scheduler.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
scsi_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
scsi.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
sock.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
stdinc.h env_dpdk: fix check for AMD iommu 2022-11-15 08:31:13 +00:00
string.h lib/util: add strarray utility functions 2022-11-15 08:31:02 +00:00
thread.h thread: add spdk_thread_is_running() 2022-11-23 08:22:04 +00:00
trace_parser.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
trace.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
tree.h util: rename RB_ROOT into _RB_ROOT 2021-06-04 22:46:40 +00:00
util.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
uuid.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
version.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
vfio_user_pci.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
vfio_user_spec.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
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vhost.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
vmd.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
xor.h update Intel copyright notices 2022-11-10 08:28:53 +00:00
zipf.h update Intel copyright notices 2022-11-10 08:28:53 +00:00