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scsi: hisi_sas: modify internal abort dev flow for v3 hw 

There is a change for abort dev for v3 hw: add registers to configure
unaborted iptt for a device, and then inform this to logic.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Xiang Chen 2017-06-14 23:33:32 +08:00 committed by Martin K. Petersen
parent 402cd9f0ae
commit d30ff26323
3 changed files with 45 additions and 0 deletions
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2
drivers/scsi/hisi_sas/hisi_sas.h
View File

@ -188,6 +188,8 @@ struct hisi_sas_hw {
void (*free_device)(struct hisi_hba *hisi_hba,
struct hisi_sas_device *dev);
int (*get_wideport_bitmap)(struct hisi_hba *hisi_hba, int port_id);
void (*dereg_device)(struct hisi_hba *hisi_hba,
struct domain_device *device);
int (*soft_reset)(struct hisi_hba *hisi_hba);
int max_command_entries;
int complete_hdr_size;

15
drivers/scsi/hisi_sas/hisi_sas_main.c
View File

@ -727,6 +727,13 @@ static void hisi_sas_release_tasks(struct hisi_hba *hisi_hba)
}
}
static void hisi_sas_dereg_device(struct hisi_hba *hisi_hba,
struct domain_device *device)
{
if (hisi_hba->hw->dereg_device)
hisi_hba->hw->dereg_device(hisi_hba, device);
}
static void hisi_sas_dev_gone(struct domain_device *device)
{
struct hisi_sas_device *sas_dev = device->lldd_dev;
@ -740,6 +747,8 @@ static void hisi_sas_dev_gone(struct domain_device *device)
hisi_sas_internal_task_abort(hisi_hba, device,
HISI_SAS_INT_ABT_DEV, 0);
hisi_sas_dereg_device(hisi_hba, device);
hisi_hba->hw->free_device(hisi_hba, sas_dev);
device->lldd_dev = NULL;
memset(sas_dev, 0, sizeof(*sas_dev));
@ -1071,6 +1080,7 @@ static int hisi_sas_abort_task(struct sas_task *task)
if (task->dev->dev_type == SAS_SATA_DEV) {
hisi_sas_internal_task_abort(hisi_hba, device,
HISI_SAS_INT_ABT_DEV, 0);
hisi_sas_dereg_device(hisi_hba, device);
rc = hisi_sas_softreset_ata_disk(device);
}
} else if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SMP) {
@ -1137,6 +1147,10 @@ static int hisi_sas_I_T_nexus_reset(struct domain_device *device)
return TMF_RESP_FUNC_FAILED;
sas_dev->dev_status = HISI_SAS_DEV_NORMAL;
hisi_sas_internal_task_abort(hisi_hba, device,
HISI_SAS_INT_ABT_DEV, 0);
hisi_sas_dereg_device(hisi_hba, device);
rc = hisi_sas_debug_I_T_nexus_reset(device);
if (rc == TMF_RESP_FUNC_COMPLETE) {
@ -1164,6 +1178,7 @@ static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun)
HISI_SAS_INT_ABT_DEV, 0);
if (rc == TMF_RESP_FUNC_FAILED)
goto out;
hisi_sas_dereg_device(hisi_hba, device);
phy = sas_get_local_phy(device);

28
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
View File

@ -50,6 +50,10 @@
#define CFG_ABT_SET_QUERY_IPTT 0xd4
#define CFG_SET_ABORTED_IPTT_OFF 0
#define CFG_SET_ABORTED_IPTT_MSK (0xfff << CFG_SET_ABORTED_IPTT_OFF)
#define CFG_SET_ABORTED_EN_OFF 12
#define CFG_ABT_SET_IPTT_DONE 0xd8
#define CFG_ABT_SET_IPTT_DONE_OFF 0
#define HGC_IOMB_PROC1_STATUS 0x104
#define CFG_1US_TIMER_TRSH 0xcc
#define CHNL_INT_STATUS 0x148
#define INT_COAL_EN 0x19c
@ -583,6 +587,29 @@ static void free_device_v3_hw(struct hisi_hba *hisi_hba,
}
}
static void dereg_device_v3_hw(struct hisi_hba *hisi_hba,
struct domain_device *device)
{
struct hisi_sas_slot *slot, *slot2;
struct hisi_sas_device *sas_dev = device->lldd_dev;
u32 cfg_abt_set_query_iptt;
cfg_abt_set_query_iptt = hisi_sas_read32(hisi_hba,
CFG_ABT_SET_QUERY_IPTT);
list_for_each_entry_safe(slot, slot2, &sas_dev->list, entry) {
cfg_abt_set_query_iptt &= ~CFG_SET_ABORTED_IPTT_MSK;
cfg_abt_set_query_iptt |= (1 << CFG_SET_ABORTED_EN_OFF) |
(slot->idx << CFG_SET_ABORTED_IPTT_OFF);
hisi_sas_write32(hisi_hba, CFG_ABT_SET_QUERY_IPTT,
cfg_abt_set_query_iptt);
}
cfg_abt_set_query_iptt &= ~(1 << CFG_SET_ABORTED_EN_OFF);
hisi_sas_write32(hisi_hba, CFG_ABT_SET_QUERY_IPTT,
cfg_abt_set_query_iptt);
hisi_sas_write32(hisi_hba, CFG_ABT_SET_IPTT_DONE,
1 << CFG_ABT_SET_IPTT_DONE_OFF);
}
static int hw_init_v3_hw(struct hisi_hba *hisi_hba)
{
init_reg_v3_hw(hisi_hba);
@ -1613,6 +1640,7 @@ static const struct hisi_sas_hw hisi_sas_v3_hw = {
.phy_disable = disable_phy_v3_hw,
.phy_hard_reset = phy_hard_reset_v3_hw,
.phy_get_max_linkrate = phy_get_max_linkrate_v3_hw,
.dereg_device = dereg_device_v3_hw,
};
static struct Scsi_Host *