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[2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id o14-20020a05600c4fce00b003c6b67426b0sm5125617wmq.12.2022.10.13.09.06.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Oct 2022 09:06:27 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Cc: Paolo Bonzini , Fam Zheng , Hannes Reinecke , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Daniel Henrique Barboza , Greg Kurz , "Michael S. Tsirkin" , Dmitry Fleytman , qemu-block@nongnu.org, qemu-ppc@nongnu.org Subject: [PATCH 1/2] scsi: Use device_cold_reset() and bus_cold_reset() Date: Thu, 13 Oct 2022 17:06:22 +0100 Message-Id: <20221013160623.1296109-2-peter.maydell@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221013160623.1296109-1-peter.maydell@linaro.org> References: <20221013160623.1296109-1-peter.maydell@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::334; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x334.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" In the SCSI subsystem we currently use the legacy functions qdev_reset_all() and qbus_reset_all(). These perform a recursive reset, starting from either a qbus or a qdev. However they do not permit any of the devices in the tree to use three-phase reset, because device reset goes through the device_legacy_reset() function that only calls the single DeviceClass::reset method. Switch to using the device_cold_reset() and bus_cold_reset() functions. These also perform a recursive reset, where first the children are reset and then finally the parent, but they use the new (...in 2020...) Resettable mechanism, which supports both the old style single-reset method and also the new 3-phase reset handling. Since no devices attached to SCSI buses currently try to use 3-phase reset, this should be a no-behaviour-change commit which just reduces the use of a deprecated API. Commit created with: sed -i -e 's/qdev_reset_all/device_cold_reset/g;s/qbus_reset_all/bus_cold_reset/g' hw/scsi/*.c Signed-off-by: Peter Maydell --- hw/scsi/esp.c | 2 +- hw/scsi/lsi53c895a.c | 4 ++-- hw/scsi/megasas.c | 2 +- hw/scsi/mptsas.c | 8 ++++---- hw/scsi/spapr_vscsi.c | 2 +- hw/scsi/virtio-scsi.c | 6 +++--- hw/scsi/vmw_pvscsi.c | 4 ++-- 7 files changed, 14 insertions(+), 14 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 2ff18ce5008..e5b281e836a 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -941,7 +941,7 @@ static void esp_soft_reset(ESPState *s) static void esp_bus_reset(ESPState *s) { - qbus_reset_all(BUS(&s->bus)); + bus_cold_reset(BUS(&s->bus)); } static void parent_esp_reset(ESPState *s, int irq, int level) diff --git a/hw/scsi/lsi53c895a.c b/hw/scsi/lsi53c895a.c index 05a43ec8071..50979640c32 100644 --- a/hw/scsi/lsi53c895a.c +++ b/hw/scsi/lsi53c895a.c @@ -1868,7 +1868,7 @@ static void lsi_reg_writeb(LSIState *s, int offset, uint8_t val) } if (val & LSI_SCNTL1_RST) { if (!(s->sstat0 & LSI_SSTAT0_RST)) { - qbus_reset_all(BUS(&s->bus)); + bus_cold_reset(BUS(&s->bus)); s->sstat0 |= LSI_SSTAT0_RST; lsi_script_scsi_interrupt(s, LSI_SIST0_RST, 0); } @@ -1926,7 +1926,7 @@ static void lsi_reg_writeb(LSIState *s, int offset, uint8_t val) lsi_execute_script(s); } if (val & LSI_ISTAT0_SRST) { - qdev_reset_all(DEVICE(s)); + device_cold_reset(DEVICE(s)); } break; case 0x16: /* MBOX0 */ diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c index 7082456d653..9cbbb16121d 100644 --- a/hw/scsi/megasas.c +++ b/hw/scsi/megasas.c @@ -1484,7 +1484,7 @@ static int megasas_cluster_reset_ld(MegasasState *s, MegasasCmd *cmd) MegasasCmd *tmp_cmd = &s->frames[i]; if (tmp_cmd->req && tmp_cmd->req->dev->id == target_id) { SCSIDevice *d = tmp_cmd->req->dev; - qdev_reset_all(&d->qdev); + device_cold_reset(&d->qdev); } } return MFI_STAT_OK; diff --git a/hw/scsi/mptsas.c b/hw/scsi/mptsas.c index a90c2546f10..c485da792c9 100644 --- a/hw/scsi/mptsas.c +++ b/hw/scsi/mptsas.c @@ -522,7 +522,7 @@ reply_maybe_async: reply.ResponseCode = MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN; goto out; } - qdev_reset_all(&sdev->qdev); + device_cold_reset(&sdev->qdev); break; case MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET: @@ -538,13 +538,13 @@ reply_maybe_async: QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { sdev = SCSI_DEVICE(kid->child); if (sdev->channel == 0 && sdev->id == req->TargetID) { - qdev_reset_all(kid->child); + device_cold_reset(kid->child); } } break; case MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS: - qbus_reset_all(BUS(&s->bus)); + bus_cold_reset(BUS(&s->bus)); break; default: @@ -807,7 +807,7 @@ static void mptsas_soft_reset(MPTSASState *s) s->intr_mask = MPI_HIM_DIM | MPI_HIM_RIM; mptsas_update_interrupt(s); - qbus_reset_all(BUS(&s->bus)); + bus_cold_reset(BUS(&s->bus)); s->intr_status = 0; s->intr_mask = save_mask; diff --git a/hw/scsi/spapr_vscsi.c b/hw/scsi/spapr_vscsi.c index 0a8cbf5a4b5..5bbbef64ef3 100644 --- a/hw/scsi/spapr_vscsi.c +++ b/hw/scsi/spapr_vscsi.c @@ -865,7 +865,7 @@ static int vscsi_process_tsk_mgmt(VSCSIState *s, vscsi_req *req) break; } - qdev_reset_all(&d->qdev); + device_cold_reset(&d->qdev); break; case SRP_TSK_ABORT_TASK_SET: diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c index 41f2a563017..2dd40dcf90b 100644 --- a/hw/scsi/virtio-scsi.c +++ b/hw/scsi/virtio-scsi.c @@ -365,7 +365,7 @@ static int virtio_scsi_do_tmf(VirtIOSCSI *s, VirtIOSCSIReq *req) goto incorrect_lun; } s->resetting++; - qdev_reset_all(&d->qdev); + device_cold_reset(&d->qdev); s->resetting--; break; @@ -417,7 +417,7 @@ static int virtio_scsi_do_tmf(VirtIOSCSI *s, VirtIOSCSIReq *req) QTAILQ_FOREACH_RCU(kid, &s->bus.qbus.children, sibling) { SCSIDevice *d1 = SCSI_DEVICE(kid->child); if (d1->channel == 0 && d1->id == target) { - qdev_reset_all(&d1->qdev); + device_cold_reset(&d1->qdev); } } rcu_read_unlock(); @@ -831,7 +831,7 @@ static void virtio_scsi_reset(VirtIODevice *vdev) assert(!s->dataplane_started); s->resetting++; - qbus_reset_all(BUS(&s->bus)); + bus_cold_reset(BUS(&s->bus)); s->resetting--; vs->sense_size = VIRTIO_SCSI_SENSE_DEFAULT_SIZE; diff --git a/hw/scsi/vmw_pvscsi.c b/hw/scsi/vmw_pvscsi.c index 91e2f858aba..3ea2c8c9f23 100644 --- a/hw/scsi/vmw_pvscsi.c +++ b/hw/scsi/vmw_pvscsi.c @@ -445,7 +445,7 @@ static void pvscsi_reset_adapter(PVSCSIState *s) { s->resetting++; - qbus_reset_all(BUS(&s->bus)); + bus_cold_reset(BUS(&s->bus)); s->resetting--; pvscsi_process_completion_queue(s); assert(QTAILQ_EMPTY(&s->pending_queue)); @@ -894,7 +894,7 @@ pvscsi_on_cmd_reset_bus(PVSCSIState *s) trace_pvscsi_on_cmd_arrived("PVSCSI_CMD_RESET_BUS"); s->resetting++; - qbus_reset_all(BUS(&s->bus)); + bus_cold_reset(BUS(&s->bus)); s->resetting--; return PVSCSI_COMMAND_PROCESSING_SUCCEEDED; } From patchwork Thu Oct 13 16:06:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 614753 Delivered-To: patch@linaro.org Received: by 2002:a17:522:c983:b0:460:3032:e3c4 with SMTP id kr3csp333110pvb; Thu, 13 Oct 2022 09:18:02 -0700 (PDT) X-Google-Smtp-Source: AMsMyM69owDloYLiH0906ajwD9CXRVh8l8IwVcswGgWsQPEty64L5Mkofd8AmYn+q3G5AKVtU/wL X-Received: by 2002:ac8:5946:0:b0:39c:bcf6:da66 with SMTP id 6-20020ac85946000000b0039cbcf6da66mr534108qtz.144.1665677882176; Thu, 13 Oct 2022 09:18:02 -0700 (PDT) ARC-Seal: i=1; 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[2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id o14-20020a05600c4fce00b003c6b67426b0sm5125617wmq.12.2022.10.13.09.06.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Oct 2022 09:06:29 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Cc: Paolo Bonzini , Fam Zheng , Hannes Reinecke , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Daniel Henrique Barboza , Greg Kurz , "Michael S. Tsirkin" , Dmitry Fleytman , qemu-block@nongnu.org, qemu-ppc@nongnu.org Subject: [PATCH 2/2] hw/scsi/vmw_pvscsi.c: Use device_cold_reset() to reset SCSI devices Date: Thu, 13 Oct 2022 17:06:23 +0100 Message-Id: <20221013160623.1296109-3-peter.maydell@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221013160623.1296109-1-peter.maydell@linaro.org> References: <20221013160623.1296109-1-peter.maydell@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::32a; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x32a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" Currently the vwm_pvscsi controller resets individual SCSI devices with the device_legacy_reset() function. The only difference between this and device_cold_reset() is that device_legacy_reset() resets the device but not any child qbuses it might have. In this case, no SCSI device has a child qbus, so the functions have the same behaviour. Switch to device_cold_reset() to move away from using the deprecated function, and bring this SCSI controller in to line with what all the others do. Signed-off-by: Peter Maydell --- hw/scsi/vmw_pvscsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/scsi/vmw_pvscsi.c b/hw/scsi/vmw_pvscsi.c index 3ea2c8c9f23..fa766968550 100644 --- a/hw/scsi/vmw_pvscsi.c +++ b/hw/scsi/vmw_pvscsi.c @@ -880,7 +880,7 @@ pvscsi_on_cmd_reset_device(PVSCSIState *s) if (sdev != NULL) { s->resetting++; - device_legacy_reset(&sdev->qdev); + device_cold_reset(&sdev->qdev); s->resetting--; return PVSCSI_COMMAND_PROCESSING_SUCCEEDED; }