Adds P2L validity map tracking - a bitmap marking all physical LBAs
as containing valid (current) user data or not. A clear bit denotes
the location has no valid data and may be skipped during relocation
or compaction. A set bit means it may have valid data (it's still
necessary to do the necessary comparision against L2P).
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
Change-Id: I6a831a97b3080eb7c880d9c4feab41b523467885
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13350
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>
Adding API for the bringup part of fast shutdown/startup. Adds
shared memory utilization for necessary functions during initialization.
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
Change-Id: Iab2da102fd0ccaa56fbdb9b3c765be5eeefff145
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13349
Community-CI: Mellanox Build Bot
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>
Adds API for fast shutdown - the ability for FTL to skip most
of the metadata persists made during clean shutdown, and relying
on their representation in shared memory instead. This allows for
faster update of SPDK (or just FTL, assuming no metadata changes),
with downtime reduction from 2-5 seconds to 500-1000 ms (for
14TiB+800GiB base and cache drives).
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
Change-Id: I5999d31698a81512db8d5893eabee7b505c80d06
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13348
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>
Helper functions which determine which md regions will be stored
in shm.
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
Change-Id: I94cbfca66dfb56457a350874dbd1de63a2e07661
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14159
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>
