Messages in this thread | | | Subject | Re: [PATCH 06/16] scsi: libsas: Add sas_task.tmf | From | "chenxiang (M)" <> | Date | Thu, 27 Jan 2022 20:55:55 +0800 |
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在 2022/1/25 19:32, John Garry 写道: > Add a pointer to a sas_tmf_task to the sas_task struct, as this will be > used when the common LLDD TMF code is factored out. > > Also set it for the LLDDs to store per-sas_task TMF info. > > Signed-off-by: John Garry <john.garry@huawei.com> > --- > drivers/scsi/hisi_sas/hisi_sas_main.c | 25 +++++++++--------------- > drivers/scsi/mvsas/mv_sas.c | 15 ++++++-------- > drivers/scsi/pm8001/pm8001_sas.c | 28 ++++++++++----------------- > include/scsi/libsas.h | 1 + > 4 files changed, 26 insertions(+), 43 deletions(-) > > diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c > index db6f8ea7864d..4f146aa50423 100644 > --- a/drivers/scsi/hisi_sas/hisi_sas_main.c > +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c > @@ -400,8 +400,7 @@ void hisi_sas_task_deliver(struct hisi_hba *hisi_hba, > struct hisi_sas_slot *slot, > struct hisi_sas_dq *dq, > struct hisi_sas_device *sas_dev, > - struct hisi_sas_internal_abort *abort, > - struct sas_tmf_task *tmf) > + struct hisi_sas_internal_abort *abort) > { > struct hisi_sas_cmd_hdr *cmd_hdr_base; > int dlvry_queue_slot, dlvry_queue; > @@ -427,8 +426,6 @@ void hisi_sas_task_deliver(struct hisi_hba *hisi_hba, > cmd_hdr_base = hisi_hba->cmd_hdr[dlvry_queue]; > slot->cmd_hdr = &cmd_hdr_base[dlvry_queue_slot]; > > - slot->tmf = tmf; > - slot->is_internal = tmf;
In kernel 5.17-rc1(with above two lines on), it seems there is a issue for ata disk reset command as tmf = null while it is internal command.
> task->lldd_task = slot; > > memset(slot->cmd_hdr, 0, sizeof(struct hisi_sas_cmd_hdr)); > @@ -471,8 +468,7 @@ void hisi_sas_task_deliver(struct hisi_hba *hisi_hba, > spin_unlock(&dq->lock); > } > > -static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, > - struct sas_tmf_task *tmf) > +static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags) > { > int n_elem = 0, n_elem_dif = 0, n_elem_req = 0; > struct domain_device *device = task->dev; > @@ -583,11 +579,11 @@ static int hisi_sas_task_exec(struct sas_task *task, gfp_t gfp_flags, > slot->task = task; > slot->port = port; > > - slot->tmf = tmf; > - slot->is_internal = tmf; > + slot->tmf = task->tmf; > + slot->is_internal = task->tmf; > > /* protect task_prep and start_delivery sequence */ > - hisi_sas_task_deliver(hisi_hba, slot, dq, sas_dev, NULL, tmf); > + hisi_sas_task_deliver(hisi_hba, slot, dq, sas_dev, NULL); > > return 0; > > @@ -1115,11 +1111,6 @@ static void hisi_sas_dev_gone(struct domain_device *device) > up(&hisi_hba->sem); > } > > -static int hisi_sas_queue_command(struct sas_task *task, gfp_t gfp_flags) > -{ > - return hisi_sas_task_exec(task, gfp_flags, NULL); > -} > - > static int hisi_sas_phy_set_linkrate(struct hisi_hba *hisi_hba, int phy_no, > struct sas_phy_linkrates *r) > { > @@ -1273,7 +1264,9 @@ static int hisi_sas_exec_internal_tmf_task(struct domain_device *device, > task->slow_task->timer.expires = jiffies + TASK_TIMEOUT; > add_timer(&task->slow_task->timer); > > - res = hisi_sas_task_exec(task, GFP_KERNEL, tmf); > + task->tmf = tmf; > + > + res = hisi_sas_queue_command(task, GFP_KERNEL); > if (res) { > del_timer_sync(&task->slow_task->timer); > dev_err(dev, "abort tmf: executing internal task failed: %d\n", > @@ -2054,7 +2047,7 @@ hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, int device_id, > slot->port = port; > slot->is_internal = true; > > - hisi_sas_task_deliver(hisi_hba, slot, dq, sas_dev, abort, NULL); > + hisi_sas_task_deliver(hisi_hba, slot, dq, sas_dev, abort); > > return 0; > > diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c > index 22bffaaf2eb0..5105d55eb00c 100644 > --- a/drivers/scsi/mvsas/mv_sas.c > +++ b/drivers/scsi/mvsas/mv_sas.c > @@ -840,14 +840,14 @@ static int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf > return rc; > } > > -static int mvs_task_exec(struct sas_task *task, gfp_t gfp_flags, > - struct completion *completion, int is_tmf, > - struct sas_tmf_task *tmf) > +int mvs_queue_command(struct sas_task *task, gfp_t gfp_flags) > { > struct mvs_info *mvi = NULL; > u32 rc = 0; > u32 pass = 0; > unsigned long flags = 0; > + struct sas_tmf_task *tmf = task->tmf; > + int is_tmf = !!task->tmf; > > mvi = ((struct mvs_device *)task->dev->lldd_dev)->mvi_info; > > @@ -864,11 +864,6 @@ static int mvs_task_exec(struct sas_task *task, gfp_t gfp_flags, > return rc; > } > > -int mvs_queue_command(struct sas_task *task, gfp_t gfp_flags) > -{ > - return mvs_task_exec(task, gfp_flags, NULL, 0, NULL); > -} > - > static void mvs_slot_free(struct mvs_info *mvi, u32 rx_desc) > { > u32 slot_idx = rx_desc & RXQ_SLOT_MASK; > @@ -1300,7 +1295,9 @@ static int mvs_exec_internal_tmf_task(struct domain_device *dev, > task->slow_task->timer.expires = jiffies + MVS_TASK_TIMEOUT*HZ; > add_timer(&task->slow_task->timer); > > - res = mvs_task_exec(task, GFP_KERNEL, NULL, 1, tmf); > + task->tmf = tmf; > + > + res = mvs_queue_command(task, GFP_KERNEL); > > if (res) { > del_timer(&task->slow_task->timer); > diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c > index 0a3701d97549..323b172243b8 100644 > --- a/drivers/scsi/pm8001/pm8001_sas.c > +++ b/drivers/scsi/pm8001/pm8001_sas.c > @@ -371,15 +371,14 @@ static int sas_find_local_port_id(struct domain_device *dev) > > #define DEV_IS_GONE(pm8001_dev) \ > ((!pm8001_dev || (pm8001_dev->dev_type == SAS_PHY_UNUSED))) > + > /** > - * pm8001_task_exec - queue the task(ssp, smp && ata) to the hardware. > + * pm8001_queue_command - register for upper layer used, all IO commands sent > + * to HBA are from this interface. > * @task: the task to be execute. > - * @gfp_flags: gfp_flags. > - * @is_tmf: if it is task management task. > - * @tmf: the task management IU > + * @gfp_flags: gfp_flags > */ > -static int pm8001_task_exec(struct sas_task *task, > - gfp_t gfp_flags, int is_tmf, struct sas_tmf_task *tmf) > +int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags) > { > struct domain_device *dev = task->dev; > struct pm8001_hba_info *pm8001_ha; > @@ -390,6 +389,8 @@ static int pm8001_task_exec(struct sas_task *task, > u32 tag = 0xdeadbeef, rc = 0, n_elem = 0; > unsigned long flags = 0; > enum sas_protocol task_proto = t->task_proto; > + struct sas_tmf_task *tmf = task->tmf; > + int is_tmf = !!task->tmf; > > if (!dev->port) { > struct task_status_struct *tsm = &t->task_status; > @@ -507,17 +508,6 @@ static int pm8001_task_exec(struct sas_task *task, > return rc; > } > > -/** > - * pm8001_queue_command - register for upper layer used, all IO commands sent > - * to HBA are from this interface. > - * @task: the task to be execute. > - * @gfp_flags: gfp_flags > - */ > -int pm8001_queue_command(struct sas_task *task, gfp_t gfp_flags) > -{ > - return pm8001_task_exec(task, gfp_flags, 0, NULL); > -} > - > /** > * pm8001_ccb_task_free - free the sg for ssp and smp command, free the ccb. > * @pm8001_ha: our hba card information > @@ -752,7 +742,9 @@ static int pm8001_exec_internal_tmf_task(struct domain_device *dev, > task->slow_task->timer.expires = jiffies + PM8001_TASK_TIMEOUT*HZ; > add_timer(&task->slow_task->timer); > > - res = pm8001_task_exec(task, GFP_KERNEL, 1, tmf); > + task->tmf = tmf; > + > + res = pm8001_queue_command(task, GFP_KERNEL); > > if (res) { > del_timer(&task->slow_task->timer); > diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h > index 30b9afec1e1d..802b4e04e3a1 100644 > --- a/include/scsi/libsas.h > +++ b/include/scsi/libsas.h > @@ -611,6 +611,7 @@ struct sas_task { > void *lldd_task; /* for use by LLDDs */ > void *uldd_task; > struct sas_task_slow *slow_task; > + struct sas_tmf_task *tmf; > }; > > struct sas_task_slow {
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