Prior a regular round robin could result in strange performance
if an idxd device from another socket was used.
Signed-off-by: peluse <peluse@localhost.localdomain>
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Change-Id: Id863c79067beabe73ef89d92b3fb3c436821b97a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/9367
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Monica Kenguva <monica.kenguva@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Allows for better performance by not hitting the same portal
address with every submission.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Change-Id: I1ec8eae6f3acec9e98161029cd5406ec08603aa6
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8190
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>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Just remove this function pointer and add a new one,i.e.,
dump_sw_error.
Because this function pointer is only used to
read a sw err info. We can hide it in the detailed
idxd implemenation.
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Change-Id: I42fe2220dae85df307b5af64e37acfd7f748915b
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8707
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
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>
Recent work identified race conditions having to do with the
dynamic flow control mechanism for the idxd engine. In order
to both address the issue and simplify the code a new scheme
is now in place. Essentially every DSA device will be allowed
to accomodate 8 channels and each channel will get a fixed 1/8
the number of work queue entries regardless of how many
channels there are. Assignment of channels to devices is round
robin and if/when no more channels can be accommodated the get
channel request will fail.
The performance tests also revealed another issue that was
masked before, it's a one-line so is in this patch for convenience.
In the idxd poller we limit the number of completions allowed
during one run to avoid the poller thread from starving other
threads since as operations complete on this thread they are
immediately replaced up to the limit for the channel.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: I913e809a934b562feb495815a9b9c605d622285c
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8171
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>
Purpose: We will also support the kernel idxd driver, so we do not
need export this feature in the module file.
Change-Id: I965e031497920f527962ba187bccd81de6977b8f
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7336
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Purpose: This patch is used to prepare to add the kernel
idxd support later.
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Change-Id: If89665f95d622c7342ab75050664158ec6fc615a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7330
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
