From patchwork Mon Oct 23 09:28:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 13432581 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 BFCB7C001E0 for ; Mon, 23 Oct 2023 09:28:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229749AbjJWJ2s (ORCPT ); Mon, 23 Oct 2023 05:28:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229557AbjJWJ2q (ORCPT ); Mon, 23 Oct 2023 05:28:46 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 703DC97 for ; Mon, 23 Oct 2023 02:28:44 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 11BFF1FE13; Mon, 23 Oct 2023 09:28:43 +0000 (UTC) Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 9B81D2CF4F; Mon, 23 Oct 2023 09:28:42 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id C61B751EC342; Mon, 23 Oct 2023 11:28:42 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke Subject: [PATCHv8 00/10] scsi: EH rework, main part Date: Mon, 23 Oct 2023 11:28:27 +0200 Message-Id: <20231023092837.33786-1-hare@suse.de> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 X-Spamd-Bar: ++ Authentication-Results: smtp-out2.suse.de; dkim=none; dmarc=none; spf=softfail (smtp-out2.suse.de: 149.44.160.134 is neither permitted nor denied by domain of hare@suse.de) smtp.mailfrom=hare@suse.de X-Rspamd-Server: rspamd2 X-Spamd-Result: default: False [2.49 / 50.00]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_MISSING_CHARSET(2.50)[]; NEURAL_HAM_LONG(-3.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.20)[suse.de]; BROKEN_CONTENT_TYPE(1.50)[]; RWL_MAILSPIKE_GOOD(0.00)[149.44.160.134:from]; RCPT_COUNT_FIVE(0.00)[5]; R_SPF_SOFTFAIL(0.60)[~all]; TO_MATCH_ENVRCPT_SOME(0.00)[]; VIOLATED_DIRECT_SPF(3.50)[]; MX_GOOD(-0.01)[]; NEURAL_HAM_SHORT(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.20)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_TWO(0.00)[2]; BAYES_HAM(-3.00)[100.00%] X-Rspamd-Queue-Id: 11BFF1FE13 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Hi all, (taking up an old thread:) here's now the main part of my EH rework. It modifies the reset callbacks for SCSI EH such that each callback (eh_host_reset_handler, eh_bus_reset_handler, eh_target_reset_handler, eh_device_reset_handler) only references the actual entity it needs to work on (ie 'Scsi_Host', (scsi bus), 'scsi_target', 'scsi_device'), and the 'struct scsi_cmnd' is dropped from the argument list. This simplifies the handler themselves as they don't need to exclude some 'magic' command, and we don't need to allocate a mock 'struct scsi_cmnd' when issuing a reset via SCSI ioctl. The entire patchset can be found at: https://git.kernel.org/pub/scm/linux/kernel/git/hare/scsi-devel.git branch eh-rework.v8 As usual, comments and reviews are welcome. Changes to v6: - Include reviews from Bart - Add patch to return -EAGAIN from scsi_ioctl_reset() Changes to v5: - Improve description for patch to modify scsi_eh_bus_device_reset() - Add patch to modify the iteratrion in scsi_eh_bus_reset() Hannes Reinecke (10): scsi: Use Scsi_Host as argument for eh_host_reset_handler scsi: Use Scsi_Host and channel number as argument for eh_bus_reset_handler() scsi: Use scsi_target as argument for eh_target_reset_handler() scsi: Use scsi_device as argument to eh_device_reset_handler() scsi: set host byte after EH completed scsi_error: iterate over list of failed commands in scsi_eh_bus_reset() scsi: Do not allocate scsi command in scsi_ioctl_reset() scsi_error: iterate over list of failed commands in scsi_eh_bus_device_reset() scsi_error: map FAST_IO_FAIL to -EAGAIN in SCSI EH scsi: remove SUBMITTED_BY_SCSI_RESET_IOCTL Documentation/scsi/scsi_eh.rst | 15 +- Documentation/scsi/scsi_mid_low_api.rst | 35 ++- drivers/infiniband/ulp/srp/ib_srp.c | 12 +- drivers/message/fusion/mptfc.c | 25 +- drivers/message/fusion/mptsas.c | 10 +- drivers/message/fusion/mptscsih.c | 114 +++------ drivers/message/fusion/mptscsih.h | 8 +- drivers/message/fusion/mptspi.c | 8 +- drivers/s390/scsi/zfcp_scsi.c | 16 +- drivers/scsi/3w-9xxx.c | 11 +- drivers/scsi/3w-sas.c | 11 +- drivers/scsi/3w-xxxx.c | 13 +- drivers/scsi/53c700.c | 39 +-- drivers/scsi/BusLogic.c | 24 +- drivers/scsi/NCR5380.c | 5 +- drivers/scsi/a100u2w.c | 14 +- drivers/scsi/aacraid/linit.c | 41 ++- drivers/scsi/advansys.c | 28 ++- drivers/scsi/aha152x.c | 10 +- drivers/scsi/aha1542.c | 28 +-- drivers/scsi/aic7xxx/aic79xx_osm.c | 37 ++- drivers/scsi/aic7xxx/aic7xxx_osm.c | 10 +- drivers/scsi/arcmsr/arcmsr_hba.c | 8 +- drivers/scsi/arm/acornscsi.c | 8 +- drivers/scsi/arm/fas216.c | 24 +- drivers/scsi/arm/fas216.h | 17 +- drivers/scsi/atari_scsi.c | 4 +- drivers/scsi/be2iscsi/be_main.c | 12 +- drivers/scsi/bfa/bfad_im.c | 8 +- drivers/scsi/bnx2fc/bnx2fc.h | 4 +- drivers/scsi/bnx2fc/bnx2fc_io.c | 14 +- drivers/scsi/csiostor/csio_scsi.c | 5 +- drivers/scsi/cxlflash/main.c | 10 +- drivers/scsi/dc395x.c | 24 +- drivers/scsi/esas2r/esas2r.h | 8 +- drivers/scsi/esas2r/esas2r_main.c | 57 +++-- drivers/scsi/esp_scsi.c | 9 +- drivers/scsi/fdomain.c | 3 +- drivers/scsi/fnic/fnic.h | 4 +- drivers/scsi/fnic/fnic_scsi.c | 12 +- drivers/scsi/hpsa.c | 14 +- drivers/scsi/hptiop.c | 6 +- drivers/scsi/ibmvscsi/ibmvfc.c | 19 +- drivers/scsi/ibmvscsi/ibmvscsi.c | 25 +- drivers/scsi/imm.c | 6 +- drivers/scsi/initio.c | 14 +- drivers/scsi/ipr.c | 29 ++- drivers/scsi/ips.c | 30 +-- drivers/scsi/libfc/fc_fcp.c | 18 +- drivers/scsi/libiscsi.c | 21 +- drivers/scsi/libsas/sas_scsi_host.c | 21 +- drivers/scsi/lpfc/lpfc_scsi.c | 29 ++- drivers/scsi/mac53c94.c | 8 +- drivers/scsi/megaraid.c | 6 +- drivers/scsi/megaraid.h | 2 +- drivers/scsi/megaraid/megaraid_mbox.c | 18 +- drivers/scsi/megaraid/megaraid_sas.h | 3 +- drivers/scsi/megaraid/megaraid_sas_base.c | 60 ++--- drivers/scsi/megaraid/megaraid_sas_fusion.c | 55 +++-- drivers/scsi/mesh.c | 12 +- drivers/scsi/mpi3mr/mpi3mr_os.c | 134 +++++----- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 82 +++--- drivers/scsi/mvumi.c | 9 +- drivers/scsi/myrb.c | 3 +- drivers/scsi/myrs.c | 3 +- drivers/scsi/ncr53c8xx.c | 4 +- drivers/scsi/nsp32.c | 14 +- drivers/scsi/pcmcia/nsp_cs.c | 10 +- drivers/scsi/pcmcia/nsp_cs.h | 6 +- drivers/scsi/pcmcia/qlogic_stub.c | 4 +- drivers/scsi/pcmcia/sym53c500_cs.c | 8 +- drivers/scsi/pmcraid.c | 36 ++- drivers/scsi/ppa.c | 6 +- drivers/scsi/qedf/qedf_main.c | 13 +- drivers/scsi/qedi/qedi_iscsi.c | 3 +- drivers/scsi/qla1280.c | 74 +++--- drivers/scsi/qla2xxx/qla_os.c | 85 +++---- drivers/scsi/qla4xxx/ql4_os.c | 58 ++--- drivers/scsi/qlogicfas408.c | 10 +- drivers/scsi/qlogicfas408.h | 2 +- drivers/scsi/qlogicpti.c | 3 +- drivers/scsi/scsi_debug.c | 54 ++-- drivers/scsi/scsi_error.c | 260 ++++++++++---------- drivers/scsi/scsi_lib.c | 2 - drivers/scsi/smartpqi/smartpqi.h | 1 - drivers/scsi/smartpqi/smartpqi_init.c | 19 +- drivers/scsi/snic/snic.h | 5 +- drivers/scsi/snic/snic_scsi.c | 41 +-- drivers/scsi/stex.c | 9 +- drivers/scsi/storvsc_drv.c | 4 +- drivers/scsi/sym53c8xx_2/sym_glue.c | 14 +- drivers/scsi/virtio_scsi.c | 12 +- drivers/scsi/vmw_pvscsi.c | 20 +- drivers/scsi/wd33c93.c | 8 +- drivers/scsi/wd33c93.h | 2 +- drivers/scsi/wd719x.c | 17 +- drivers/scsi/xen-scsifront.c | 6 +- drivers/staging/rts5208/rtsx.c | 6 +- drivers/target/loopback/tcm_loop.c | 17 +- drivers/ufs/core/ufshcd.c | 18 +- drivers/usb/image/microtek.c | 4 +- drivers/usb/storage/scsiglue.c | 8 +- drivers/usb/storage/uas.c | 3 +- include/scsi/libfc.h | 4 +- include/scsi/libiscsi.h | 4 +- include/scsi/libsas.h | 4 +- include/scsi/scsi_cmnd.h | 1 - include/scsi/scsi_eh.h | 2 +- include/scsi/scsi_host.h | 8 +- 109 files changed, 1038 insertions(+), 1223 deletions(-)