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Spdk/include/spdk/memory.h

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Replace most BSD 3-clause license text with SPDX identifier. Many open source projects have moved to using SPDX identifiers to specify license information, reducing the amount of boilerplate code in every source file. This patch replaces the bulk of SPDK .c, .cpp and Makefiles with the BSD-3-Clause identifier. Almost all of these files share the exact same license text, and this patch only modifies the files that contain the most common license text. There can be slight variations because the third clause contains company names - most say "Intel Corporation", but there are instances for Nvidia, Samsung, Eideticom and even "the copyright holder". Used a bash script to automate replacement of the license text with SPDX identifier which is checked into scripts/spdx.sh. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: Iaa88ab5e92ea471691dc298cfe41ebfb5d169780 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12904 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: Aleksey Marchuk <alexeymar@nvidia.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Dong Yi <dongx.yi@intel.com> Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com> Reviewed-by: Paul Luse <paul.e.luse@intel.com> Reviewed-by: <qun.wan@intel.com>
2022-06-03 19:15:11 +00:00
/* SPDX-License-Identifier: BSD-3-Clause
update Intel copyright notices per Intel policy to include file commit date using git cmd below. The policy does not apply to non-Intel (C) notices. git log --follow -C90% --format=%ad --date default <file> | tail -1 and then pull just the 4 digit year from the result. Intel copyrights were not added to files where Intel either had no contribution ot the contribution lacked substance (ie license header updates, formatting changes, etc). Contribution date used "--follow -C95%" to get the most accurate date. Note that several files in this patch didn't end the license/(c) block with a blank comment line so these were added as the vast majority of files do have this last blank line. Simply there for consistency. Signed-off-by: paul luse <paul.e.luse@intel.com> Change-Id: Id5b7ce4f658fe87132f14139ead58d6e285c04d4 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15192 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> Community-CI: Mellanox Build Bot
2022-11-01 20:26:26 +00:00
* Copyright (C) 2019 Intel Corporation.
env: move VALUE_2MB defines into a new internal header We use those values in various places in SPDK, so let's define them in a single place now. Change-Id: Iad9a5745d69166a6e6032370d4e5a0e604914e45 Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/c/439369 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2019-01-07 10:38:39 +00:00
* All rights reserved.
*/
memory.h: move to public headers There's no reason not to publish those. Especially if they're needed in other public headers. Change-Id: I7dfc6922fcc0dfc46822ad8a16a375f997b98e84 Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1041 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2020-02-27 13:38:02 +00:00
#ifndef SPDK_MEMORY_H
#define SPDK_MEMORY_H
env: move VALUE_2MB defines into a new internal header We use those values in various places in SPDK, so let's define them in a single place now. Change-Id: Iad9a5745d69166a6e6032370d4e5a0e604914e45 Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/c/439369 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2019-01-07 10:38:39 +00:00
#include "spdk/stdinc.h"
env_dpdk: Automatically map PCI BARs into VFIO By doing the registration immediately upon mapping the BAR instead of when the memory is inserted into the spdk_mem_map, we're able to register BARs that are not 2MB multiples in size and alignment. The SPDK API for registering a BAR already returns the physical/io address in the map call, and it can be used directly without a call to spdk_mem_register(). If the user does elect to later register the BAR using spdk_mem_register(), we attempt to insert the 2MB aligned segments we can into the spdk_mem_map. Users may still need to register memory for a few reasons, such as making spdk_vtophys() work, or for setting up the BAR as a target for RDMA. These cases still require 2MB aligned and sized segments. Change-Id: I395ae8803ec4bf22703f6f76db54200949e82532 Signed-off-by: Ben Walker <benjamin.walker@intel.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14017 Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com> Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Community-CI: Mellanox Build Bot
2022-08-03 20:28:23 +00:00
#ifndef __linux__
#define VFIO_ENABLED 0
#else
#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0)
#define VFIO_ENABLED 1
#else
#define VFIO_ENABLED 0
#endif
#endif
env: move VALUE_2MB defines into a new internal header We use those values in various places in SPDK, so let's define them in a single place now. Change-Id: Iad9a5745d69166a6e6032370d4e5a0e604914e45 Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/c/439369 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2019-01-07 10:38:39 +00:00
#ifdef __cplusplus
extern "C" {
#endif
#define SHIFT_2MB 21 /* (1 << 21) == 2MB */
memory.h: overall cleanup Replace repeating (VALUE_2MB - 1) with MASK_2MB, etc. No functional changes, just cleanup. Change-Id: I6a9ebfb0ebebd3c29f6174c57ea01738b26feddc Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1040 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2020-02-27 13:12:31 +00:00
#define VALUE_2MB (1ULL << SHIFT_2MB)
#define MASK_2MB (VALUE_2MB - 1)
env: move VALUE_2MB defines into a new internal header We use those values in various places in SPDK, so let's define them in a single place now. Change-Id: Iad9a5745d69166a6e6032370d4e5a0e604914e45 Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/c/439369 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2019-01-07 10:38:39 +00:00
#define SHIFT_4KB 12 /* (1 << 12) == 4KB */
memory.h: overall cleanup Replace repeating (VALUE_2MB - 1) with MASK_2MB, etc. No functional changes, just cleanup. Change-Id: I6a9ebfb0ebebd3c29f6174c57ea01738b26feddc Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1040 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2020-02-27 13:12:31 +00:00
#define VALUE_4KB (1ULL << SHIFT_4KB)
#define MASK_4KB (VALUE_4KB - 1)
env: move VALUE_2MB defines into a new internal header We use those values in various places in SPDK, so let's define them in a single place now. Change-Id: Iad9a5745d69166a6e6032370d4e5a0e604914e45 Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/c/439369 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2019-01-07 10:38:39 +00:00
memory.h: overall cleanup Replace repeating (VALUE_2MB - 1) with MASK_2MB, etc. No functional changes, just cleanup. Change-Id: I6a9ebfb0ebebd3c29f6174c57ea01738b26feddc Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1040 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2020-02-27 13:12:31 +00:00
#define _2MB_OFFSET(ptr) (((uintptr_t)(ptr)) & MASK_2MB)
#define _2MB_PAGE(ptr) FLOOR_2MB((uintptr_t)(ptr))
#define FLOOR_2MB(x) (((uintptr_t)(x)) & ~MASK_2MB)
#define CEIL_2MB(x) FLOOR_2MB(((uintptr_t)(x)) + VALUE_2MB - 1)
env: move VALUE_2MB defines into a new internal header We use those values in various places in SPDK, so let's define them in a single place now. Change-Id: Iad9a5745d69166a6e6032370d4e5a0e604914e45 Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/c/439369 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2019-01-07 10:38:39 +00:00
#ifdef __cplusplus
}
#endif
memory.h: move to public headers There's no reason not to publish those. Especially if they're needed in other public headers. Change-Id: I7dfc6922fcc0dfc46822ad8a16a375f997b98e84 Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1041 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2020-02-27 13:38:02 +00:00
#endif /* SPDK_MEMORY_H */
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