From 693e66a0a6ac56322687f614ba6e8bfbc43a1530 Mon Sep 17 00:00:00 2001 From: John Garry Date: Thu, 17 Feb 2022 23:42:40 +0800 Subject: scsi: libsas: Add TMF handler aborted callback The hisi_sas and pm8001 TMF handlers have some special processing for when the TMF is aborted, so add a callback and fill it in for those drivers. Link: https://lore.kernel.org/r/1645112566-115804-13-git-send-email-john.garry@huawei.com Tested-by: Yihang Li Tested-by: Damien Le Moal Reviewed-by: Christoph Hellwig Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_main.c | 20 ++++++++++++++++++++ drivers/scsi/libsas/sas_scsi_host.c | 2 ++ drivers/scsi/pm8001/pm8001_init.c | 1 + drivers/scsi/pm8001/pm8001_sas.c | 8 ++++++++ drivers/scsi/pm8001/pm8001_sas.h | 1 + 5 files changed, 32 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index bd40323f7053..21e929c8bdb0 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -666,6 +666,25 @@ static struct hisi_sas_device *hisi_sas_alloc_dev(struct domain_device *device) return sas_dev; } +static void hisi_sas_tmf_aborted(struct sas_task *task) +{ + struct hisi_sas_slot *slot = task->lldd_task; + struct domain_device *device = task->dev; + struct hisi_sas_device *sas_dev = device->lldd_dev; + struct hisi_hba *hisi_hba = sas_dev->hisi_hba; + + if (slot) { + struct hisi_sas_cq *cq = + &hisi_hba->cq[slot->dlvry_queue]; + /* + * sync irq to avoid free'ing task + * before using task in IO completion + */ + synchronize_irq(cq->irq_no); + slot->task = NULL; + } +} + #define HISI_SAS_DISK_RECOVER_CNT 3 static int hisi_sas_init_device(struct domain_device *device) { @@ -2322,6 +2341,7 @@ static struct sas_domain_function_template hisi_sas_transport_ops = { .lldd_clear_nexus_ha = hisi_sas_clear_nexus_ha, .lldd_port_formed = hisi_sas_port_formed, .lldd_write_gpio = hisi_sas_write_gpio, + .lldd_tmf_aborted = hisi_sas_tmf_aborted, }; void hisi_sas_init_mem(struct hisi_hba *hisi_hba) diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 0f599744738d..c5d9c6a6b870 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -966,6 +966,8 @@ int sas_execute_tmf(struct domain_device *device, void *parameter, if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { pr_err("TMF task timeout for %016llx and not done\n", SAS_ADDR(device->sas_addr)); + if (i->dft->lldd_tmf_aborted) + i->dft->lldd_tmf_aborted(task); break; } pr_warn("TMF task timeout for %016llx and done\n", diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index 8eef8f4de42f..6a3635c39f6a 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -129,6 +129,7 @@ static struct sas_domain_function_template pm8001_transport_ops = { .lldd_query_task = pm8001_query_task, .lldd_port_formed = pm8001_port_formed, .lldd_tmf_exec_complete = pm8001_setds_completion, + .lldd_tmf_aborted = pm8001_tmf_aborted, }; /** diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c index 69da7246ea20..a530fb0aaa05 100644 --- a/drivers/scsi/pm8001/pm8001_sas.c +++ b/drivers/scsi/pm8001/pm8001_sas.c @@ -1390,3 +1390,11 @@ void pm8001_setds_completion(struct domain_device *dev) wait_for_completion(&completion_setstate); } } + +void pm8001_tmf_aborted(struct sas_task *task) +{ + struct pm8001_ccb_info *ccb = task->lldd_task; + + if (ccb) + ccb->task = NULL; +} diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h index c19c9c80206c..aa018d2d19a3 100644 --- a/drivers/scsi/pm8001/pm8001_sas.h +++ b/drivers/scsi/pm8001/pm8001_sas.h @@ -743,6 +743,7 @@ pm8001_ccb_task_free_done(struct pm8001_hba_info *pm8001_ha, task->task_done(task); } void pm8001_setds_completion(struct domain_device *dev); +void pm8001_tmf_aborted(struct sas_task *task); #endif -- cgit v1.2.3