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2025-08-28ata: Fix SATA_MOBILE_LPM_POLICY description in KconfigDamien Le Moal1-9/+26
[ Upstream commit ed62a62a18bc144f73eadf866ae46842e8f6606e ] Improve the description of the possible default SATA link power management policies and add the missing description for policy 5. No functional changes. Fixes: a5ec5a7bfd1f ("ata: ahci: Support state with min power but Partial low power state") Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Niklas Cassel <cassel@kernel.org> [ Adjust context ] Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28ata: libata-scsi: Fix ata_to_sense_error() status handlingDamien Le Moal1-12/+8
commit cf3fc037623c54de48d2ec1a1ee686e2d1de2d45 upstream. Commit 8ae720449fca ("libata: whitespace fixes in ata_to_sense_error()") inadvertantly added the entry 0x40 (ATA_DRDY) to the stat_table array in the function ata_to_sense_error(). This entry ties a failed qc which has a status filed equal to ATA_DRDY to the sense key ILLEGAL REQUEST with the additional sense code UNALIGNED WRITE COMMAND. This entry will be used to generate a failed qc sense key and sense code when the qc is missing sense data and there is no match for the qc error field in the sense_table array of ata_to_sense_error(). As a result, for a failed qc for which we failed to get sense data (e.g. read log 10h failed if qc is an NCQ command, or REQUEST SENSE EXT command failed for the non-ncq case, the user very often end up seeing the completely misleading "unaligned write command" error, even if qc was not a write command. E.g.: sd 0:0:0:0: [sda] tag#12 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sd 0:0:0:0: [sda] tag#12 Sense Key : Illegal Request [current] sd 0:0:0:0: [sda] tag#12 Add. Sense: Unaligned write command sd 0:0:0:0: [sda] tag#12 CDB: Read(10) 28 00 00 00 10 00 00 00 08 00 I/O error, dev sda, sector 4096 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0 Fix this by removing the ATA_DRDY entry from the stat_table array so that we default to always returning ABORTED COMMAND without any additional sense code, since we do not know any better. The entry 0x08 (ATA_DRQ) is also removed since signaling ABORTED COMMAND with a parity error is also misleading (as a parity error would likely be signaled through a bus error). So for this case, also default to returning ABORTED COMMAND without any additional sense code. With this, the previous example error case becomes: sd 0:0:0:0: [sda] tag#17 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sd 0:0:0:0: [sda] tag#17 Sense Key : Aborted Command [current] sd 0:0:0:0: [sda] tag#17 Add. Sense: No additional sense information sd 0:0:0:0: [sda] tag#17 CDB: Read(10) 28 00 00 00 10 00 00 00 08 00 I/O error, dev sda, sector 4096 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0 Together with these fixes, refactor stat_table to make it more readable by putting the entries comments in front of the entries and using the defined status bits macros instead of hardcoded values. Reported-by: Lorenz Brun <lorenz@brun.one> Reported-by: Brandon Schwartz <Brandon.Schwartz@wdc.com> Fixes: 8ae720449fca ("libata: whitespace fixes in ata_to_sense_error()") Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28ata: libata-sata: Disallow changing LPM state if not supportedDamien Le Moal1-0/+5
[ Upstream commit 413e800cadbf67550d76c77c230b2ecd96bce83a ] Modify ata_scsi_lpm_store() to return an error if a user attempts to set a link power management policy for a port that does not support LPM, that is, ports flagged with ATA_FLAG_NO_LPM. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Niklas Cassel <cassel@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Link: https://lore.kernel.org/r/20250701125321.69496-6-dlemoal@kernel.org Signed-off-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17ata: pata_cs5536: fix build on 32-bit UMLJohannes Berg1-1/+1
[ Upstream commit fe5b391fc56f77cf3c22a9dd4f0ce20db0e3533f ] On 32-bit ARCH=um, CONFIG_X86_32 is still defined, so it doesn't indicate building on real X86 machines. There's no MSR on UML though, so add a check for CONFIG_X86. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20250606090110.15784-2-johannes@sipsolutions.net Signed-off-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-27ata: pata_via: Force PIO for ATAPI devices on VT6415/VT6330Tasos Sahanidis1-1/+2
commit d29fc02caad7f94b62d56ee1b01c954f9c961ba7 upstream. The controller has a hardware bug that can hard hang the system when doing ATAPI DMAs without any trace of what happened. Depending on the device attached, it can also prevent the system from booting. In this case, the system hangs when reading the ATIP from optical media with cdrecord -vvv -atip on an _NEC DVD_RW ND-4571A 1-01 and an Optiarc DVD RW AD-7200A 1.06 attached to an ASRock 990FX Extreme 4, running at UDMA/33. The issue can be reproduced by running the same command with a cygwin build of cdrecord on WinXP, although it requires more attempts to cause it. The hang in that case is also resolved by forcing PIO. It doesn't appear that VIA has produced any drivers for that OS, thus no known workaround exists. HDDs attached to the controller do not suffer from any DMA issues. Cc: stable@vger.kernel.org Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/916677 Signed-off-by: Tasos Sahanidis <tasos@tasossah.com> Link: https://lore.kernel.org/r/20250519085508.1398701-1-tasos@tasossah.com Signed-off-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-02ahci: add PCI ID for Marvell 88SE9215 SATA ControllerDaniel Kral1-0/+2
[ Upstream commit 885251dc35767b1c992f6909532ca366c830814a ] Add support for Marvell Technology Group Ltd. 88SE9215 SATA 6 Gb/s controller, which is e.g. used in the DAWICONTROL DC-614e RAID bus controller and was not automatically recognized before. Tested with a DAWICONTROL DC-614e RAID bus controller. Signed-off-by: Daniel Kral <d.kral@proxmox.com> Link: https://lore.kernel.org/r/20250304092030.37108-1-d.kral@proxmox.com Signed-off-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02ata: libata-eh: Do not use ATAPI DMA for a device limited to PIO modeNiklas Cassel1-2/+9
[ Upstream commit 91ec84f8eaddbc93d7c62e363d68aeb7b89879c7 ] atapi_eh_request_sense() currently uses ATAPI DMA if the SATA controller has ATA_FLAG_PIO_DMA (PIO cmds via DMA) set. However, ATA_FLAG_PIO_DMA is a flag that can be set by a low-level driver on a port at initialization time, before any devices are scanned. If a controller detects a connected device that only supports PIO, we set the flag ATA_DFLAG_PIO. Modify atapi_eh_request_sense() to not use ATAPI DMA if the connected device only supports PIO. Reported-by: Philip Pemberton <lists@philpem.me.uk> Closes: https://lore.kernel.org/linux-ide/c6722ee8-5e21-4169-af59-cbbae9edc02f@philpem.me.uk/ Tested-by: Philip Pemberton <lists@philpem.me.uk> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Link: https://lore.kernel.org/r/20250221015422.20687-2-cassel@kernel.org Signed-off-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02ata: sata_sx4: Add error handling in pdc20621_i2c_read()Wentao Liang1-3/+10
[ Upstream commit 8d46a27085039158eb5e253ab8a35a0e33b5e864 ] The function pdc20621_prog_dimm0() calls the function pdc20621_i2c_read() but does not handle the error if the read fails. This could lead to process with invalid data. A proper implementation can be found in /source/drivers/ata/sata_sx4.c, pdc20621_prog_dimm_global(). As mentioned in its commit: bb44e154e25125bef31fa956785e90fccd24610b, the variable spd0 might be used uninitialized when pdc20621_i2c_read() fails. Add error handling to pdc20621_i2c_read(). If a read operation fails, an error message is logged via dev_err(), and return a negative error code. Add error handling to pdc20621_prog_dimm0() in pdc20621_dimm_init(), and return a negative error code if pdc20621_prog_dimm0() fails. Fixes: 4447d3515616 ("libata: convert the remaining SATA drivers to new init model") Signed-off-by: Wentao Liang <vulab@iscas.ac.cn> Reviewed-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02ata: sata_sx4: Drop pointless VPRINTK() calls and convert the remaining onesHannes Reinecke1-71/+34
[ Upstream commit bc21c1056d08525d9c5a5d74db4b8f14e6691991 ] Drop pointless VPRINTK() calls for setting up SG tables and convert the remaining calls to structured logging. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Stable-dep-of: 8d46a2708503 ("ata: sata_sx4: Add error handling in pdc20621_i2c_read()") Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-05-02ata: pata_pxa: Fix potential NULL pointer dereference in pxa_ata_probe()Henry Martin1-0/+6
[ Upstream commit ad320e408a8c95a282ab9c05cdf0c9b95e317985 ] devm_ioremap() returns NULL on error. Currently, pxa_ata_probe() does not check for this case, which can result in a NULL pointer dereference. Add NULL check after devm_ioremap() to prevent this issue. Fixes: 2dc6c6f15da9 ("[ARM] pata_pxa: DMA-capable PATA driver") Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-12-19ata: sata_highbank: fix OF node reference leak in highbank_initialize_phys()Joe Hattori1-0/+1
commit 676fe1f6f74db988191dab5df3bf256908177072 upstream. The OF node reference obtained by of_parse_phandle_with_args() is not released on early return. Add a of_node_put() call before returning. Fixes: 8996b89d6bc9 ("ata: add platform driver for Calxeda AHCI controller") Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-17ata: sata_sil: Rename sil_blacklist to sil_quirksDamien Le Moal1-6/+6
[ Upstream commit 93b0f9e11ce511353c65b7f924cf5f95bd9c3aba ] Rename the array sil_blacklist to sil_quirks as this name is more neutral and is also consistent with how this driver define quirks with the SIL_QUIRK_XXX flags. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Niklas Cassel <cassel@kernel.org> Reviewed-by: Igor Pylypiv <ipylypiv@google.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-12ata: pata_macio: Use WARN instead of BUGMichael Ellerman1-2/+5
[ Upstream commit d4bc0a264fb482b019c84fbc7202dd3cab059087 ] The overflow/underflow conditions in pata_macio_qc_prep() should never happen. But if they do there's no need to kill the system entirely, a WARN and failing the IO request should be sufficient and might allow the system to keep running. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-12ata: libata: Fix memory leak for error path in ata_host_alloc()Zheng Qixing1-1/+3
commit 284b75a3d83c7631586d98f6dede1d90f128f0db upstream. In ata_host_alloc(), if devres_alloc() fails to allocate the device host resource data pointer, the already allocated ata_host structure is not freed before returning from the function. This results in a potential memory leak. Call kfree(host) before jumping to the error handling path to ensure that the ata_host structure is properly freed if devres_alloc() fails. Fixes: 2623c7a5f279 ("libata: add refcounting to ata_host") Cc: stable@vger.kernel.org Signed-off-by: Zheng Qixing <zhengqixing@huawei.com> Reviewed-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04ata: libata-core: Fix null pointer dereference on errorNiklas Cassel1-0/+3
commit 5d92c7c566dc76d96e0e19e481d926bbe6631c1e upstream. If the ata_port_alloc() call in ata_host_alloc() fails, ata_host_release() will get called. However, the code in ata_host_release() tries to free ata_port struct members unconditionally, which can lead to the following: BUG: unable to handle page fault for address: 0000000000003990 PGD 0 P4D 0 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 10 PID: 594 Comm: (udev-worker) Not tainted 6.10.0-rc5 #44 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014 RIP: 0010:ata_host_release.cold+0x2f/0x6e [libata] Code: e4 4d 63 f4 44 89 e2 48 c7 c6 90 ad 32 c0 48 c7 c7 d0 70 33 c0 49 83 c6 0e 41 RSP: 0018:ffffc90000ebb968 EFLAGS: 00010246 RAX: 0000000000000041 RBX: ffff88810fb52e78 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88813b3218c0 RDI: ffff88813b3218c0 RBP: ffff88810fb52e40 R08: 0000000000000000 R09: 6c65725f74736f68 R10: ffffc90000ebb738 R11: 73692033203a746e R12: 0000000000000004 R13: 0000000000000000 R14: 0000000000000011 R15: 0000000000000006 FS: 00007f6cc55b9980(0000) GS:ffff88813b300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000003990 CR3: 00000001122a2000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> ? __die_body.cold+0x19/0x27 ? page_fault_oops+0x15a/0x2f0 ? exc_page_fault+0x7e/0x180 ? asm_exc_page_fault+0x26/0x30 ? ata_host_release.cold+0x2f/0x6e [libata] ? ata_host_release.cold+0x2f/0x6e [libata] release_nodes+0x35/0xb0 devres_release_group+0x113/0x140 ata_host_alloc+0xed/0x120 [libata] ata_host_alloc_pinfo+0x14/0xa0 [libata] ahci_init_one+0x6c9/0xd20 [ahci] Do not access ata_port struct members unconditionally. Fixes: 633273a3ed1c ("libata-pmp: hook PMP support and enable it") Cc: stable@vger.kernel.org Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: John Garry <john.g.garry@oracle.com> Link: https://lore.kernel.org/r/20240629124210.181537-7-cassel@kernel.org Signed-off-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Oleksandr Tymoshenko <ovt@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-05ata: libata-core: Fix double free on errorNiklas Cassel1-4/+4
commit ab9e0c529eb7cafebdd31fe1644524e80a48b05d upstream. If e.g. the ata_port_alloc() call in ata_host_alloc() fails, we will jump to the err_out label, which will call devres_release_group(). devres_release_group() will trigger a call to ata_host_release(). ata_host_release() calls kfree(host), so executing the kfree(host) in ata_host_alloc() will lead to a double free: kernel BUG at mm/slub.c:553! Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 11 PID: 599 Comm: (udev-worker) Not tainted 6.10.0-rc5 #47 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014 RIP: 0010:kfree+0x2cf/0x2f0 Code: 5d 41 5e 41 5f 5d e9 80 d6 ff ff 4d 89 f1 41 b8 01 00 00 00 48 89 d9 48 89 da RSP: 0018:ffffc90000f377f0 EFLAGS: 00010246 RAX: ffff888112b1f2c0 RBX: ffff888112b1f2c0 RCX: ffff888112b1f320 RDX: 000000000000400b RSI: ffffffffc02c9de5 RDI: ffff888112b1f2c0 RBP: ffffc90000f37830 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc90000f37610 R11: 617461203a736b6e R12: ffffea00044ac780 R13: ffff888100046400 R14: ffffffffc02c9de5 R15: 0000000000000006 FS: 00007f2f1cabe980(0000) GS:ffff88813b380000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2f1c3acf75 CR3: 0000000111724000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> ? __die_body.cold+0x19/0x27 ? die+0x2e/0x50 ? do_trap+0xca/0x110 ? do_error_trap+0x6a/0x90 ? kfree+0x2cf/0x2f0 ? exc_invalid_op+0x50/0x70 ? kfree+0x2cf/0x2f0 ? asm_exc_invalid_op+0x1a/0x20 ? ata_host_alloc+0xf5/0x120 [libata] ? ata_host_alloc+0xf5/0x120 [libata] ? kfree+0x2cf/0x2f0 ata_host_alloc+0xf5/0x120 [libata] ata_host_alloc_pinfo+0x14/0xa0 [libata] ahci_init_one+0x6c9/0xd20 [ahci] Ensure that we will not call kfree(host) twice, by performing the kfree() only if the devres_open_group() call failed. Fixes: dafd6c496381 ("libata: ensure host is free'd on error exit paths") Cc: stable@vger.kernel.org Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Link: https://lore.kernel.org/r/20240629124210.181537-9-cassel@kernel.org Signed-off-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-05ata: ahci: Clean up sysfs file on errorNiklas Cassel1-5/+12
commit eeb25a09c5e0805d92e4ebd12c4b0ad0df1b0295 upstream. .probe() (ahci_init_one()) calls sysfs_add_file_to_group(), however, if probe() fails after this call, we currently never call sysfs_remove_file_from_group(). (The sysfs_remove_file_from_group() call in .remove() (ahci_remove_one()) does not help, as .remove() is not called on .probe() error.) Thus, if probe() fails after the sysfs_add_file_to_group() call, the next time we insmod the module we will get: sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:04.0/remapped_nvme' CPU: 11 PID: 954 Comm: modprobe Not tainted 6.10.0-rc5 #43 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x5d/0x80 sysfs_warn_dup.cold+0x17/0x23 sysfs_add_file_mode_ns+0x11a/0x130 sysfs_add_file_to_group+0x7e/0xc0 ahci_init_one+0x31f/0xd40 [ahci] Fixes: 894fba7f434a ("ata: ahci: Add sysfs attribute to show remapped NVMe device count") Cc: stable@vger.kernel.org Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Link: https://lore.kernel.org/r/20240629124210.181537-10-cassel@kernel.org Signed-off-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-16ata: pata_legacy: make legacy_exit() work againSergey Shtylyov1-4/+4
commit d4a89339f17c87c4990070e9116462d16e75894f upstream. Commit defc9cd826e4 ("pata_legacy: resychronize with upstream changes and resubmit") missed to update legacy_exit(), so that it now fails to do any cleanup -- the loop body there can never be entered. Fix that and finally remove now useless nr_legacy_host variable... Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool. Fixes: defc9cd826e4 ("pata_legacy: resychronize with upstream changes and resubmit") Cc: stable@vger.kernel.org Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru> Reviewed-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-05-17ata: sata_gemini: Check clk_enable() resultChen Ni1-1/+4
[ Upstream commit e85006ae7430aef780cc4f0849692e266a102ec0 ] The call to clk_enable() in gemini_sata_start_bridge() can fail. Add a check to detect such failure. Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-04-13ata: sata_mv: Fix PCI device ID table declaration compilation warningArnd Bergmann1-32/+31
[ Upstream commit 3137b83a90646917c90951d66489db466b4ae106 ] Building with W=1 shows a warning for an unused variable when CONFIG_PCI is diabled: drivers/ata/sata_mv.c:790:35: error: unused variable 'mv_pci_tbl' [-Werror,-Wunused-const-variable] static const struct pci_device_id mv_pci_tbl[] = { Move the table into the same block that containsn the pci_driver definition. Fixes: 7bb3c5290ca0 ("sata_mv: Remove PCI dependency") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-04-13ata: sata_sx4: fix pdc20621_get_from_dimm() on 64-bitArnd Bergmann1-4/+2
[ Upstream commit 52f80bb181a9a1530ade30bc18991900bbb9697f ] gcc warns about a memcpy() with overlapping pointers because of an incorrect size calculation: In file included from include/linux/string.h:369, from drivers/ata/sata_sx4.c:66: In function 'memcpy_fromio', inlined from 'pdc20621_get_from_dimm.constprop' at drivers/ata/sata_sx4.c:962:2: include/linux/fortify-string.h:97:33: error: '__builtin_memcpy' accessing 4294934464 bytes at offsets 0 and [16, 16400] overlaps 6442385281 bytes at offset -2147450817 [-Werror=restrict] 97 | #define __underlying_memcpy __builtin_memcpy | ^ include/linux/fortify-string.h:620:9: note: in expansion of macro '__underlying_memcpy' 620 | __underlying_##op(p, q, __fortify_size); \ | ^~~~~~~~~~~~~ include/linux/fortify-string.h:665:26: note: in expansion of macro '__fortify_memcpy_chk' 665 | #define memcpy(p, q, s) __fortify_memcpy_chk(p, q, s, \ | ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/io.h:1184:9: note: in expansion of macro 'memcpy' 1184 | memcpy(buffer, __io_virt(addr), size); | ^~~~~~ The problem here is the overflow of an unsigned 32-bit number to a negative that gets converted into a signed 'long', keeping a large positive number. Replace the complex calculation with a more readable min() variant that avoids the warning. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-04-13ahci: asm1064: asm1166: don't limit reported portsConrad Kostecki1-13/+0
[ Upstream commit 6cd8adc3e18960f6e59d797285ed34ef473cc896 ] Previously, patches have been added to limit the reported count of SATA ports for asm1064 and asm1166 SATA controllers, as those controllers do report more ports than physically having. While it is allowed to report more ports than physically having in CAP.NP, it is not allowed to report more ports than physically having in the PI (Ports Implemented) register, which is what these HBAs do. (This is a AHCI spec violation.) Unfortunately, it seems that the PMP implementation in these ASMedia HBAs is also violating the AHCI and SATA-IO PMP specification. What these HBAs do is that they do not report that they support PMP (CAP.SPM (Supports Port Multiplier) is not set). Instead, they have decided to add extra "virtual" ports in the PI register that is used if a port multiplier is connected to any of the physical ports of the HBA. Enumerating the devices behind the PMP as specified in the AHCI and SATA-IO specifications, by using PMP READ and PMP WRITE commands to the physical ports of the HBA is not possible, you have to use the "virtual" ports. This is of course bad, because this gives us no way to detect the device and vendor ID of the PMP actually connected to the HBA, which means that we can not apply the proper PMP quirks for the PMP that is connected to the HBA. Limiting the port map will thus stop these controllers from working with SATA Port Multipliers. This patch reverts both patches for asm1064 and asm1166, so old behavior is restored and SATA PMP will work again, but it will also reintroduce the (minutes long) extra boot time for the ASMedia controllers that do not have a PMP connected (either on the PCIe card itself, or an external PMP). However, a longer boot time for some, is the lesser evil compared to some other users not being able to detect their drives at all. Fixes: 0077a504e1a4 ("ahci: asm1166: correct count of reported ports") Fixes: 9815e3961754 ("ahci: asm1064: correct count of reported ports") Cc: stable@vger.kernel.org Reported-by: Matt <cryptearth@googlemail.com> Signed-off-by: Conrad Kostecki <conikost@gentoo.org> Reviewed-by: Hans de Goede <hdegoede@redhat.com> [cassel: rewrote commit message] Signed-off-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-04-13ahci: asm1064: correct count of reported portsAndrey Jr. Melnikov1-3/+11
[ Upstream commit 9815e39617541ef52d0dfac4be274ad378c6dc09 ] The ASM1064 SATA host controller always reports wrongly, that it has 24 ports. But in reality, it only has four ports. before: ahci 0000:04:00.0: SSS flag set, parallel bus scan disabled ahci 0000:04:00.0: AHCI 0001.0301 32 slots 24 ports 6 Gbps 0xffff0f impl SATA mode ahci 0000:04:00.0: flags: 64bit ncq sntf stag pm led only pio sxs deso sadm sds apst after: ahci 0000:04:00.0: ASM1064 has only four ports ahci 0000:04:00.0: forcing port_map 0xffff0f -> 0xf ahci 0000:04:00.0: SSS flag set, parallel bus scan disabled ahci 0000:04:00.0: AHCI 0001.0301 32 slots 24 ports 6 Gbps 0xf impl SATA mode ahci 0000:04:00.0: flags: 64bit ncq sntf stag pm led only pio sxs deso sadm sds apst Signed-off-by: "Andrey Jr. Melnikov" <temnota.am@gmail.com> Signed-off-by: Niklas Cassel <cassel@kernel.org> Stable-dep-of: 6cd8adc3e189 ("ahci: asm1064: asm1166: don't limit reported ports") Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-01ahci: add 43-bit DMA address quirk for ASMedia ASM1061 controllersLennert Buytenhek2-6/+24
[ Upstream commit 20730e9b277873deeb6637339edcba64468f3da3 ] With one of the on-board ASM1061 AHCI controllers (1b21:0612) on an ASUSTeK Pro WS WRX80E-SAGE SE WIFI mainboard, a controller hang was observed that was immediately preceded by the following kernel messages: ahci 0000:28:00.0: Using 64-bit DMA addresses ahci 0000:28:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0035 address=0x7fffff00000 flags=0x0000] ahci 0000:28:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0035 address=0x7fffff00300 flags=0x0000] ahci 0000:28:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0035 address=0x7fffff00380 flags=0x0000] ahci 0000:28:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0035 address=0x7fffff00400 flags=0x0000] ahci 0000:28:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0035 address=0x7fffff00680 flags=0x0000] ahci 0000:28:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0035 address=0x7fffff00700 flags=0x0000] The first message is produced by code in drivers/iommu/dma-iommu.c which is accompanied by the following comment that seems to apply: /* * Try to use all the 32-bit PCI addresses first. The original SAC vs. * DAC reasoning loses relevance with PCIe, but enough hardware and * firmware bugs are still lurking out there that it's safest not to * venture into the 64-bit space until necessary. * * If your device goes wrong after seeing the notice then likely either * its driver is not setting DMA masks accurately, the hardware has * some inherent bug in handling >32-bit addresses, or not all the * expected address bits are wired up between the device and the IOMMU. */ Asking the ASM1061 on a discrete PCIe card to DMA from I/O virtual address 0xffffffff00000000 produces the following I/O page faults: vfio-pci 0000:07:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0021 address=0x7ff00000000 flags=0x0010] vfio-pci 0000:07:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0021 address=0x7ff00000500 flags=0x0010] Note that the upper 21 bits of the logged DMA address are zero. (When asking a different PCIe device in the same PCIe slot to DMA to the same I/O virtual address, we do see all the upper 32 bits of the DMA address as 1, so this is not an issue with the chipset or IOMMU configuration on the test system.) Also, hacking libahci to always set the upper 21 bits of all DMA addresses to 1 produces no discernible effect on the behavior of the ASM1061, and mkfs/mount/scrub/etc work as without this hack. This all strongly suggests that the ASM1061 has a 43 bit DMA address limit, and this commit therefore adds a quirk to deal with this limit. This issue probably applies to (some of) the other supported ASMedia parts as well, but we limit it to the PCI IDs known to refer to ASM1061 parts, as that's the only part we know for sure to be affected by this issue at this point. Link: https://lore.kernel.org/linux-ide/ZaZ2PIpEId-rl6jv@wantstofly.org/ Signed-off-by: Lennert Buytenhek <kernel@wantstofly.org> [cassel: drop date from error messages in commit log] Signed-off-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-01ahci: asm1166: correct count of reported portsConrad Kostecki1-0/+5
[ Upstream commit 0077a504e1a4468669fd2e011108db49133db56e ] The ASM1166 SATA host controller always reports wrongly, that it has 32 ports. But in reality, it only has six ports. This seems to be a hardware issue, as all tested ASM1166 SATA host controllers reports such high count of ports. Example output: ahci 0000:09:00.0: AHCI 0001.0301 32 slots 32 ports 6 Gbps 0xffffff3f impl SATA mode. By adjusting the port_map, the count is limited to six ports. New output: ahci 0000:09:00.0: AHCI 0001.0301 32 slots 32 ports 6 Gbps 0x3f impl SATA mode. Closes: https://bugzilla.kernel.org/show_bug.cgi?id=211873 Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218346 Signed-off-by: Conrad Kostecki <conikost@gentoo.org> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Niklas Cassel <cassel@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23scsi: core: Introduce enum scsi_dispositionBart Van Assche1-1/+1
[ Upstream commit b8e162f9e7e2da6e823a4984d6aa0523e278babf ] Improve readability of the code in the SCSI core by introducing an enumeration type for the values used internally that decide how to continue processing a SCSI command. The eh_*_handler return values have not been changed because that would involve modifying all SCSI drivers. The output of the following command has been inspected to verify that no out-of-range values are assigned to a variable of type enum scsi_disposition: KCFLAGS=-Wassign-enum make CC=clang W=1 drivers/scsi/ Link: https://lore.kernel.org/r/20210415220826.29438-6-bvanassche@acm.org Cc: Christoph Hellwig <hch@lst.de> Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Stable-dep-of: 4373534a9850 ("scsi: core: Move scsi_host_busy() out of host lock for waking up EH handler") Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-08ata: pata_isapnp: Add missing error check for devm_ioport_map()Chen Ni1-0/+3
[ Upstream commit a6925165ea82b7765269ddd8dcad57c731aa00de ] Add missing error return check for devm_ioport_map() and return the error if this function call fails. Fixes: 0d5ff566779f ("libata: convert to iomap") Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-25ata: libata-eh: Fix compilation warning in ata_eh_link_report()Damien Le Moal1-1/+1
[ Upstream commit 49728bdc702391902a473b9393f1620eea32acb0 ] The 6 bytes length of the tries_buf string in ata_eh_link_report() is too short and results in a gcc compilation warning with W-!: drivers/ata/libata-eh.c: In function ‘ata_eh_link_report’: drivers/ata/libata-eh.c:2371:59: warning: ‘%d’ directive output may be truncated writing between 1 and 11 bytes into a region of size 4 [-Wformat-truncation=] 2371 | snprintf(tries_buf, sizeof(tries_buf), " t%d", | ^~ drivers/ata/libata-eh.c:2371:56: note: directive argument in the range [-2147483648, 4] 2371 | snprintf(tries_buf, sizeof(tries_buf), " t%d", | ^~~~~~ drivers/ata/libata-eh.c:2371:17: note: ‘snprintf’ output between 4 and 14 bytes into a destination of size 6 2371 | snprintf(tries_buf, sizeof(tries_buf), " t%d", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2372 | ap->eh_tries); | ~~~~~~~~~~~~~ Avoid this warning by increasing the string size to 16B. Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-10ata: libata-core: Do not register PM operations for SAS portsDamien Le Moal3-2/+11
commit 75e2bd5f1ede42a2bc88aa34b431e1ace8e0bea0 upstream. libsas does its own domain based power management of ports. For such ports, libata should not use a device type defining power management operations as executing these operations for suspend/resume in addition to libsas calls to ata_sas_port_suspend() and ata_sas_port_resume() is not necessary (and likely dangerous to do, even though problems are not seen currently). Introduce the new ata_port_sas_type device_type for ports managed by libsas. This new device type is used in ata_tport_add() and is defined without power management operations. Fixes: 2fcbdcb4c802 ("[SCSI] libata: export ata_port suspend/resume infrastructure for sas") Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Tested-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-10ata: libata-core: Fix port and device removalDamien Le Moal1-1/+20
commit 84d76529c650f887f1e18caee72d6f0589e1baf9 upstream. Whenever an ATA adapter driver is removed (e.g. rmmod), ata_port_detach() is called repeatedly for all the adapter ports to remove (unload) the devices attached to the port and delete the port device itself. Removing of devices is done using libata EH with the ATA_PFLAG_UNLOADING port flag set. This causes libata EH to execute ata_eh_unload() which disables all devices attached to the port. ata_port_detach() finishes by calling scsi_remove_host() to remove the scsi host associated with the port. This function will trigger the removal of all scsi devices attached to the host and in the case of disks, calls to sd_shutdown() which will flush the device write cache and stop the device. However, given that the devices were already disabled by ata_eh_unload(), the synchronize write cache command and start stop unit commands fail. E.g. running "rmmod ahci" with first removing sd_mod results in error messages like: ata13.00: disable device sd 0:0:0:0: [sda] Synchronizing SCSI cache sd 0:0:0:0: [sda] Synchronize Cache(10) failed: Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK sd 0:0:0:0: [sda] Stopping disk sd 0:0:0:0: [sda] Start/Stop Unit failed: Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK Fix this by removing all scsi devices of the ata devices connected to the port before scheduling libata EH to disable the ATA devices. Fixes: 720ba12620ee ("[PATCH] libata-hp: update unload-unplug") Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com> Tested-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-10ata: libata-core: Fix ata_port_request_pm() lockingDamien Le Moal1-9/+9
commit 3b8e0af4a7a331d1510e963b8fd77e2fca0a77f1 upstream. The function ata_port_request_pm() checks the port flag ATA_PFLAG_PM_PENDING and calls ata_port_wait_eh() if this flag is set to ensure that power management operations for a port are not scheduled simultaneously. However, this flag check is done without holding the port lock. Fix this by taking the port lock on entry to the function and checking the flag under this lock. The lock is released and re-taken if ata_port_wait_eh() needs to be called. The two WARN_ON() macros checking that the ATA_PFLAG_PM_PENDING flag was cleared are removed as the first call is racy and the second one done without holding the port lock. Fixes: 5ef41082912b ("ata: add ata port system PM callbacks") Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Tested-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com> Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-10ata: libata-scsi: ignore reserved bits for REPORT SUPPORTED OPERATION CODESNiklas Cassel1-1/+1
commit 3ef600923521616ebe192c893468ad0424de2afb upstream. For REPORT SUPPORTED OPERATION CODES command, the service action field is defined as bits 0-4 in the second byte in the CDB. Bits 5-7 in the second byte are reserved. Only look at the service action field in the second byte when determining if the MAINTENANCE IN opcode is a REPORT SUPPORTED OPERATION CODES command. This matches how we only look at the service action field in the second byte when determining if the SERVICE ACTION IN(16) opcode is a READ CAPACITY(16) command (reserved bits 5-7 in the second byte are ignored). Fixes: 7b2030942859 ("libata: Add support for SCT Write Same") Cc: stable@vger.kernel.org Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-10ata: libata-eh: do not clear ATA_PFLAG_EH_PENDING in ata_eh_reset()Niklas Cassel1-10/+3
[ Upstream commit 80cc944eca4f0baa9c381d0706f3160e491437f2 ] ata_scsi_port_error_handler() starts off by clearing ATA_PFLAG_EH_PENDING, before calling ap->ops->error_handler() (without holding the ap->lock). If an error IRQ is received while ap->ops->error_handler() is running, the irq handler will set ATA_PFLAG_EH_PENDING. Once ap->ops->error_handler() returns, ata_scsi_port_error_handler() checks if ATA_PFLAG_EH_PENDING is set, and if it is, another iteration of ATA EH is performed. The problem is that ATA_PFLAG_EH_PENDING is not only cleared by ata_scsi_port_error_handler(), it is also cleared by ata_eh_reset(). ata_eh_reset() is called by ap->ops->error_handler(). This additional clearing done by ata_eh_reset() breaks the whole retry logic in ata_scsi_port_error_handler(). Thus, if an error IRQ is received while ap->ops->error_handler() is running, the port will currently remain frozen and will never get re-enabled. The additional clearing in ata_eh_reset() was introduced in commit 1e641060c4b5 ("libata: clear eh_info on reset completion"). Looking at the original error report: https://marc.info/?l=linux-ide&m=124765325828495&w=2 We can see the following happening: [ 1.074659] ata3: XXX port freeze [ 1.074700] ata3: XXX hardresetting link, stopping engine [ 1.074746] ata3: XXX flipping SControl [ 1.411471] ata3: XXX irq_stat=400040 CONN|PHY [ 1.411475] ata3: XXX port freeze [ 1.420049] ata3: XXX starting engine [ 1.420096] ata3: XXX rc=0, class=1 [ 1.420142] ata3: XXX clearing IRQs for thawing [ 1.420188] ata3: XXX port thawed [ 1.420234] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) We are not supposed to be able to receive an error IRQ while the port is frozen (PxIE is set to 0, i.e. all IRQs for the port are disabled). AHCI 1.3.1 section 10.7.1.1 First Tier (IS Register) states: "Each bit location can be thought of as reporting a '1' if the virtual "interrupt line" for that port is indicating it wishes to generate an interrupt. That is, if a port has one or more interrupt status bit set, and the enables for those status bits are set, then this bit shall be set." Additionally, AHCI state P:ComInit clearly shows that the state machine will only jump to P:ComInitSetIS (which sets IS.IPS(x) to '1'), if PxIE.PCE is set to '1'. In our case, PxIE is set to 0, so IS.IPS(x) won't get set. So IS.IPS(x) only gets set if PxIS and PxIE is set. AHCI 1.3.1 section 10.7.1.1 First Tier (IS Register) also states: "The bits in this register are read/write clear. It is set by the level of the virtual interrupt line being a set, and cleared by a write of '1' from the software." So if IS.IPS(x) is set, you need to explicitly clear it by writing a 1 to IS.IPS(x) for that port. Since PxIE is cleared, the only way to get an interrupt while the port is frozen, is if IS.IPS(x) is set, and the only way IS.IPS(x) can be set when the port is frozen, is if it was set before the port was frozen. However, since commit 737dd811a3db ("ata: libahci: clear pending interrupt status"), we clear both PxIS and IS.IPS(x) after freezing the port, but before the COMRESET, so the problem that commit 1e641060c4b5 ("libata: clear eh_info on reset completion") fixed can no longer happen. Thus, revert commit 1e641060c4b5 ("libata: clear eh_info on reset completion"), so that the retry logic in ata_scsi_port_error_handler() works once again. (The retry logic is still needed, since we can still get an error IRQ _after_ the port has been thawed, but before ata_scsi_port_error_handler() takes the ap->lock in order to check if ATA_PFLAG_EH_PENDING is set.) Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com> Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-10ata: ahci: Add Elkhart Lake AHCI controllerWerner Fischer1-0/+2
[ Upstream commit 2a2df98ec592667927b5c1351afa6493ea125c9f ] Elkhart Lake is the successor of Apollo Lake and Gemini Lake. These CPUs and their PCHs are used in mobile and embedded environments. With this patch I suggest that Elkhart Lake SATA controllers [1] should use the default LPM policy for mobile chipsets. The disadvantage of missing hot-plug support with this setting should not be an issue, as those CPUs are used in embedded environments and not in servers with hot-plug backplanes. We discovered that the Elkhart Lake SATA controllers have been missing in ahci.c after a customer reported the throttling of his SATA SSD after a short period of higher I/O. We determined the high temperature of the SSD controller in idle mode as the root cause for that. Depending on the used SSD, we have seen up to 1.8 Watt lower system idle power usage and up to 30°C lower SSD controller temperatures in our tests, when we set med_power_with_dipm manually. I have provided a table showing seven different SATA SSDs from ATP, Intel/Solidigm and Samsung [2]. Intel lists a total of 3 SATA controller IDs (4B60, 4B62, 4B63) in [1] for those mobile PCHs. This commit just adds 0x4b63 as I do not have test systems with 0x4b60 and 0x4b62 SATA controllers. I have tested this patch with a system which uses 0x4b63 as SATA controller. [1] https://sata-io.org/product/8803 [2] https://www.thomas-krenn.com/en/wiki/SATA_Link_Power_Management#Example_LES_v4 Signed-off-by: Werner Fischer <devlists@wefi.net> Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-10ata: ahci: Rename board_ahci_mobileMario Limonciello1-48/+48
[ Upstream commit 099849af27f74981c7e660dd93ff6a987307c1f2 ] This board definition was originally created for mobile devices to designate default link power managmeent policy to influence runtime power consumption. As this is interesting for more than just mobile designs, rename the board to `board_ahci_low_power` to make it clear it is about default policy. Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Stable-dep-of: 2a2df98ec592 ("ata: ahci: Add Elkhart Lake AHCI controller") Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-10ata: ahci: Add support for AMD A85 FCH (Hudson D4)Paul Menzel1-0/+9
[ Upstream commit a17ab7aba5df4135ef77d7f6d7105e1ea414936f ] Add support for the AMD A85 FCH (Hudson D4) AHCI adapter. Since this adapter does not require the default 200 ms debounce delay in sata_link_resume(), create a new board board_ahci_no_debounce_delay with the link flag ATA_LFLAG_NO_DEBOUNCE_DELAY, and, for now, configure the AMD A85 FCH (Hudson D4) to use it. On the ASUS F2A85-M PRO it reduces the Linux kernel boot time by the expected 200 ms from 787 ms to 585 ms. Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Stable-dep-of: 2a2df98ec592 ("ata: ahci: Add Elkhart Lake AHCI controller") Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-10ata: libata: Rename link flag ATA_LFLAG_NO_DB_DELAYPaul Menzel2-2/+2
[ Upstream commit b9ba367c513dbc165dd6c01266a59db4be2a3564 ] Rename the link flag ATA_LFLAG_NO_DB_DELAY to ATA_LFLAG_NO_DEBOUNCE_DELAY. The new name is longer, but clearer. Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Stable-dep-of: 2a2df98ec592 ("ata: ahci: Add Elkhart Lake AHCI controller") Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-10ata: libahci: clear pending interrupt statusSzuying Chen1