Keep track of read lba map segments to avoid
unnecessary traffic in case ANM events.
Lba map is divided on 4KB segments which can
store 512 lba entries.
In case multipe read request on same segment
keep pending request list and process it in
read_lba_map() completion callback.
Change-Id: I2661bdb716ab7c975140e0b37aebcb17aa23901d
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/453371
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Almost all I/O callbacks in ftl utilize data in ftl_io, which is
initialized as callback argument in ftl_io_init_internal. This patch
changes the behavior to always returning the ftl_io struct in addition
to an extra opaque buffer.
Signed-off-by: Mateusz Kozlowski <mateusz.kozlowski@intel.com>
Change-Id: I611ab1b33575f599798a2bb65c231a724c852c7f
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/455831
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Keep lba map related fields in separate struct directly
in the band. Cleanup interfaces depended on ftl_md.
Lba map structure will be extended in next commit.
Change-Id: I1cfc2f2ff0c0e90bb63f39808780845673002e70
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/453370
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Extended ftl_band_read_lba_map() interface to provide
range of lba map to read.
Added ftl_xfer_offset_from_ppa() function for
calculating offset of read portion of lba map
based on ppa address from IO. This offset is
used for coping read lba map portion to internal
ftl buffer.
Change-Id: I1c72a18c79eda8c33cd0b20ea36a5d9521a09d06
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/449435
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Padding requests are issued in multiple batches at the same time
when shutdown occurs. This allows for faster removal.
Change-Id: Iea40d2418bedbd7cf3c6865e5eb8f85871db13cd
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/454578
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
There are no guarantees of the order of completion
of NVMe IO submission queue so wait for write completion
on specific chunk before submitting another write to it.
To control chunk occupancy split IO to child requests
and release chunk in IO completion callback.
Change-Id: I44147a21b528a7f33fb92b9e77d7de8f5b18f8ff
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/449239
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Young Tack Jin <youngtack.jin@circuitblvd.com>
Reviewed-by: Claire Jihyun In <claire.in@circuitblvd.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This patch is starting point for metadata refactor
which is needed for efficient ANM events support.
Change-Id: I81d864605e69008d8e3922fb61adf504187447a1
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/449328
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This patch adds core FTL (flash translation layer) submodules.
On regular SSDs the FTL is part of firmware, whereas Open Channel
enables moving it to the host and allows for having full controll
of data placement on the device.
Main functionalities added:
* logical to physical address map
* read / write buffer cache
* wear-leveling
* bad block management
Change-Id: I5c28aa277b212734bd4b1f71ae386b3d6f8c3715
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Signed-off-by: Jakub Radtke <jakub.radtke@intel.com>
Signed-off-by: Mateusz Kozlowski <mateusz.kozlowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/431322
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>
