From patchwork Fri Sep 15 08:14:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 13386531 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CAB8EEE6440 for ; Fri, 15 Sep 2023 08:27:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233067AbjIOI11 (ORCPT ); Fri, 15 Sep 2023 04:27:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233291AbjIOI1Q (ORCPT ); Fri, 15 Sep 2023 04:27:16 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B5D84481; Fri, 15 Sep 2023 01:25:06 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 249D8C433C7; Fri, 15 Sep 2023 08:15:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1694765710; bh=gMVMhjeuqty8gAvStFQfifDoBNRlZN2wcv37urQEPJs=; h=From:To:Cc:Subject:Date:From; b=HKnmL5r2y/5h9wVyFq6eUQ11FUlusta09cxgfFKhxm5tdHp6TxbfzgI8LBw/GQ8kV AM8rIfL1817k5HUOCjurqABX0tNB/R8m4tHkiCT67ae81ldpT9xxWQsGP0qI+q44mL kkz/rRwKqX877jU2Gl7wnaFBu02UMPI1wER74JtctQfCZgtLb6jJFuEB1EENc/NrGQ u0BroBpLBXDYp6G0PJv8+l4lTIp2IgKCXPuLBl5uqTIN9xSVH3IY1OkMwoq/eFDojr XayKFjSsHI060GW8/LEXi+6IT8NJnBRrTN4I0epvloZiS89dbP5Iir21Ny0UF0lAw8 sDnIWrGvCFIoQ== From: Damien Le Moal To: linux-ide@vger.kernel.org Cc: linux-scsi@vger.kernel.org, "Martin K . Petersen" , John Garry , Rodrigo Vivi , Paul Ausbeck , Kai-Heng Feng , Joe Breuer , Geert Uytterhoeven , Chia-Lin Kao Subject: [PATCH v3 00/23] Fix libata suspend/resume handling and code cleanup Date: Fri, 15 Sep 2023 17:14:44 +0900 Message-ID: <20230915081507.761711-1-dlemoal@kernel.org> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org The first 9 patches of this series fix several issues with suspend/resume power management operations in scsi and libata. The most significant changes introduced are in patch 4 and 5, where the manage_start_stop flag of scsi devices is split into the manage_system_start_stop and manage_runtime_start_stop flags to allow keeping scsi runtime power operations for spining up/down ATA devices but have libata do its own system suspend/resume device power state management using EH. The remaining patches are code cleanup that do not introduce any significant functional change. This series was tested on qemu and on various PCs and servers. I am CC-ing people who recently reported issues with suspend/resume. Additional testing would be much appreciated. Changes from v2: * Added patch 4 as simply disabling manage_start_stop from libata was breaking individual disk runtime suspend/autosuspend. Patch 5 was reworked accordingly to the changes in patch 4. * Fixed patch 3: applying the link creation was missing and the link creation itself was also incorrect, preventing sd probe to execute correctly. Thanks to Geert for testing and reporting this issue. * Split the "Fix delayed scsi_rescan_device() execution" patch into patch 6 (scsi part) and patch 7 (ata part). * Modified patch 9 to not call sd_shutdown() from sd_remove() for devices that are not running. * Added Chia-Lin Tested tag to unchanged patches Changes from v1: * Added patch 8 and 9 to fix compilation warnings with W=1 * Addressed John comment in patch 19 * Fixed patch 20 commit message (Sergei) * Added Hannes Review tag Damien Le Moal (23): ata: libata-core: Fix ata_port_request_pm() locking ata: libata-core: Fix port and device removal ata: libata-scsi: link ata port and scsi device scsi: sd: Differentiate system and runtime start/stop management ata: libata-scsi: Disable scsi device manage_system_start_stop scsi: Do not attempt to rescan suspended devices ata: libata-scsi: Fix delayed scsi_rescan_device() execution ata: libata-core: Do not register PM operations for SAS ports scsi: sd: Do not issue commands to suspended disks on shutdown ata: libata-core: Fix compilation warning in ata_dev_config_ncq() ata: libata-eh: Fix compilation warning in ata_eh_link_report() scsi: Remove scsi device no_start_on_resume flag ata: libata-scsi: Cleanup ata_scsi_start_stop_xlat() ata: libata-core: Synchronize ata_port_detach() with hotplug ata: libata-core: Detach a port devices on shutdown ata: libata-core: Remove ata_port_suspend_async() ata: libata-core: Remove ata_port_resume_async() ata: libata-core: Do not poweroff runtime suspended ports ata: libata-core: Do not resume runtime suspended ports ata: libata-sata: Improve ata_sas_slave_configure() ata: libata-eh: Improve reset error messages ata: libata-eh: Reduce "disable device" message verbosity ata: libata: Cleanup inline DMA helper functions drivers/ata/ahci.h | 1 + drivers/ata/libata-core.c | 241 +++++++++++++++++++++++++-------- drivers/ata/libata-eh.c | 76 +++++++++-- drivers/ata/libata-sata.c | 5 +- drivers/ata/libata-scsi.c | 146 ++++++++++---------- drivers/ata/libata-transport.c | 9 +- drivers/ata/libata.h | 7 + drivers/ata/pata_macio.c | 1 + drivers/ata/sata_mv.c | 1 + drivers/ata/sata_nv.c | 2 + drivers/ata/sata_sil24.c | 1 + drivers/firewire/sbp2.c | 9 +- drivers/scsi/scsi_scan.c | 18 ++- drivers/scsi/sd.c | 88 ++++++++---- include/linux/libata.h | 27 ++-- include/scsi/scsi_device.h | 4 +- include/scsi/scsi_host.h | 2 +- 17 files changed, 451 insertions(+), 187 deletions(-)