Spdk/module
Kozlowski Mateusz 66fe5f75bb ftl: Unmap functionality
Adds ability to send trim commands to FTL - only 4MiB aligned requests (both
for offset and length of request) will be processed. During a trim
operation an L2P page (containing 1024 4B entries, 1 per user LBA; which
is where the 4MiB alignment comes from) will be marked as unmapped.
After this point any L2P access to that page will actually set the
entries themselves as FTL_ADDR_INVALID. This is done to make the trim as
fast as possible, since for large requests it's probable that most of
the L2P pages aren't actually in DRAM.

Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Change-Id: I4a04ee9498a2a6939af31b06f2e45d2b7cccbf19
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13378
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>
2022-09-09 19:44:29 +00:00
..
accel accel: Rename spdk_accel_engine_module_finish to 2022-09-06 07:16:17 +00:00
bdev ftl: Unmap functionality 2022-09-09 19:44:29 +00:00
blob blob: Optimize copy-on-write flow for clusters backed by zeroes device 2022-09-05 12:49:46 +00:00
blobfs Replace most BSD 3-clause license text with SPDX identifier. 2022-06-09 07:35:12 +00:00
env_dpdk Replace most BSD 3-clause license text with SPDX identifier. 2022-06-09 07:35:12 +00:00
event accel: Do not refer to the "framework" as "engine" 2022-09-06 07:16:17 +00:00
scheduler lib/event: do not set default scheduling period during init 2022-06-20 09:56:09 +00:00
sock sock/ssl: don't free SSL_CTX on accept() failure 2022-09-07 07:04:11 +00:00
Makefile Replace most BSD 3-clause license text with SPDX identifier. 2022-06-09 07:35:12 +00:00