diff mbox series

[3/4] scsi: hisi_sas: Make sg_tablesize consistent value

Message ID 1542725944-244183-4-git-send-email-john.garry@huawei.com (mailing list archive)
State Superseded
Headers show
Series hisi_sas: DIF/DIX support | expand

Commit Message

John Garry Nov. 20, 2018, 2:59 p.m. UTC 
From: Xiang Chen <chenxiang66@hisilicon.com>

Sht->sg_tablesize is set in the driver, and it will be assigned to
shost->sg_tablesize in SCSI mid-layer. So it is not necessary to
assign shost->sg_table one more time in the driver.

In addition to the change, change each scsi_host_template.sg_tablesize
to HISI_SAS_SGE_PAGE_CNT instead of SG_ALL.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
---
 drivers/scsi/hisi_sas/hisi_sas_main.c  | 1 -
 drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 2 +-
 drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 2 +-
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 3 +--
 4 files changed, 3 insertions(+), 5 deletions(-)

Comments

Steffen Maier Nov. 21, 2018, 11:02 a.m. UTC | #1 
On 11/20/2018 03:59 PM, John Garry wrote:
> From: Xiang Chen <chenxiang66@hisilicon.com>
> 
> Sht->sg_tablesize is set in the driver, and it will be assigned to
> shost->sg_tablesize in SCSI mid-layer. So it is not necessary to
> assign shost->sg_table one more time in the driver.
> 
> In addition to the change, change each scsi_host_template.sg_tablesize
> to HISI_SAS_SGE_PAGE_CNT instead of SG_ALL.

Might be completely irrelevant, so just as information: I once had 
problems due to changing (reducing) SHT.sg_tablesize because block queue 
limits of BSG devices of Scsi_Host and fc_host (not sure if you have an 
equivalent bsg device for your transport(s)) inherit from SHT, but don't 
update (automatically) on later updates of shost->sg_tablesize, which in 
turn affect scsi_devices allocated after the shost update.
Cf. 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/s390/scsi?id=5fea4291deacd80188b996d2f555fc6a1940e5d4
("[SCSI] zfcp: block queue limits with data router")
if you need more details.

> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
> Signed-off-by: John Garry <john.garry@huawei.com>
> ---
>   drivers/scsi/hisi_sas/hisi_sas_main.c  | 1 -
>   drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 2 +-
>   drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 2 +-
>   drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 3 +--
>   4 files changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
> index d13a662..cbda48e 100644
> --- a/drivers/scsi/hisi_sas/hisi_sas_main.c
> +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
> @@ -2410,7 +2410,6 @@ int hisi_sas_probe(struct platform_device *pdev,
>   	shost->max_lun = ~0;
>   	shost->max_channel = 1;
>   	shost->max_cmd_len = 16;
> -	shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT);
>   	if (hisi_hba->hw->slot_index_alloc) {
>   		shost->can_queue = hisi_hba->hw->max_command_entries;
>   		shost->cmd_per_lun = hisi_hba->hw->max_command_entries;
> diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
> index d24342b..2d035cc 100644
> --- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
> +++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
> @@ -1815,7 +1815,7 @@ static int hisi_sas_v1_init(struct hisi_hba *hisi_hba)
>   	.change_queue_depth	= sas_change_queue_depth,
>   	.bios_param		= sas_bios_param,
>   	.this_id		= -1,
> -	.sg_tablesize		= SG_ALL,
> +	.sg_tablesize		= HISI_SAS_SGE_PAGE_CNT,
>   	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
>   	.use_clustering		= ENABLE_CLUSTERING,
>   	.eh_device_reset_handler = sas_eh_device_reset_handler,
> diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
> index e78a97e..79e58a7 100644
> --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
> +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
> @@ -3570,7 +3570,7 @@ struct device_attribute *host_attrs_v2_hw[] = {
>   	.change_queue_depth	= sas_change_queue_depth,
>   	.bios_param		= sas_bios_param,
>   	.this_id		= -1,
> -	.sg_tablesize		= SG_ALL,
> +	.sg_tablesize		= HISI_SAS_SGE_PAGE_CNT,
>   	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
>   	.use_clustering		= ENABLE_CLUSTERING,
>   	.eh_device_reset_handler = sas_eh_device_reset_handler,
> diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
> index 7e2b020..8a08078 100644
> --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
> +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
> @@ -2224,7 +2224,7 @@ struct device_attribute *host_attrs_v3_hw[] = {
>   	.change_queue_depth	= sas_change_queue_depth,
>   	.bios_param		= sas_bios_param,
>   	.this_id		= -1,
> -	.sg_tablesize		= SG_ALL,
> +	.sg_tablesize		= HISI_SAS_SGE_PAGE_CNT,
>   	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
>   	.use_clustering		= ENABLE_CLUSTERING,
>   	.eh_device_reset_handler = sas_eh_device_reset_handler,
> @@ -2366,7 +2366,6 @@ struct device_attribute *host_attrs_v3_hw[] = {
>   	shost->max_lun = ~0;
>   	shost->max_channel = 1;
>   	shost->max_cmd_len = 16;
> -	shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT);
>   	shost->can_queue = hisi_hba->hw->max_command_entries -
>   		HISI_SAS_RESERVED_IPTT_CNT;
>   	shost->cmd_per_lun = hisi_hba->hw->max_command_entries -
>
Steffen Maier Nov. 21, 2018, 11:08 a.m. UTC | #2 
On 11/21/2018 12:02 PM, Steffen Maier wrote:
> On 11/20/2018 03:59 PM, John Garry wrote:
>> From: Xiang Chen <chenxiang66@hisilicon.com>
>>
>> Sht->sg_tablesize is set in the driver, and it will be assigned to
>> shost->sg_tablesize in SCSI mid-layer. So it is not necessary to
>> assign shost->sg_table one more time in the driver.
>>
>> In addition to the change, change each scsi_host_template.sg_tablesize
>> to HISI_SAS_SGE_PAGE_CNT instead of SG_ALL.
> 
> Might be completely irrelevant, so just as information: I once had 
> problems due to changing (reducing) SHT.sg_tablesize because block queue 
> limits of BSG devices of Scsi_Host and fc_host (not sure if you have an 
> equivalent bsg device for your transport(s)) inherit from SHT, but don't 
> update (automatically) on later updates of shost->sg_tablesize, which in 
> turn affect scsi_devices allocated after the shost update.
> Cf. 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/s390/scsi?id=5fea4291deacd80188b996d2f555fc6a1940e5d4 

Figured, your new constant seems to have the same value so no problem.

#define SG_CHUNK_SIZE	128
#define SG_ALL	SG_CHUNK_SIZE
#define HISI_SAS_SGE_PAGE_CNT SG_CHUNK_SIZE

> ("[SCSI] zfcp: block queue limits with data router")
> if you need more details.
> 
>> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
>> Signed-off-by: John Garry <john.garry@huawei.com>
>> ---
>>   drivers/scsi/hisi_sas/hisi_sas_main.c  | 1 -
>>   drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 2 +-
>>   drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 2 +-
>>   drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 3 +--
>>   4 files changed, 3 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c 
>> b/drivers/scsi/hisi_sas/hisi_sas_main.c
>> index d13a662..cbda48e 100644
>> --- a/drivers/scsi/hisi_sas/hisi_sas_main.c
>> +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
>> @@ -2410,7 +2410,6 @@ int hisi_sas_probe(struct platform_device *pdev,
>>       shost->max_lun = ~0;
>>       shost->max_channel = 1;
>>       shost->max_cmd_len = 16;
>> -    shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT);
>>       if (hisi_hba->hw->slot_index_alloc) {
>>           shost->can_queue = hisi_hba->hw->max_command_entries;
>>           shost->cmd_per_lun = hisi_hba->hw->max_command_entries;
>> diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c 
>> b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
>> index d24342b..2d035cc 100644
>> --- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
>> +++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
>> @@ -1815,7 +1815,7 @@ static int hisi_sas_v1_init(struct hisi_hba 
>> *hisi_hba)
>>       .change_queue_depth    = sas_change_queue_depth,
>>       .bios_param        = sas_bios_param,
>>       .this_id        = -1,
>> -    .sg_tablesize        = SG_ALL,
>> +    .sg_tablesize        = HISI_SAS_SGE_PAGE_CNT,
>>       .max_sectors        = SCSI_DEFAULT_MAX_SECTORS,
>>       .use_clustering        = ENABLE_CLUSTERING,
>>       .eh_device_reset_handler = sas_eh_device_reset_handler,
>> diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c 
>> b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
>> index e78a97e..79e58a7 100644
>> --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
>> +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
>> @@ -3570,7 +3570,7 @@ struct device_attribute *host_attrs_v2_hw[] = {
>>       .change_queue_depth    = sas_change_queue_depth,
>>       .bios_param        = sas_bios_param,
>>       .this_id        = -1,
>> -    .sg_tablesize        = SG_ALL,
>> +    .sg_tablesize        = HISI_SAS_SGE_PAGE_CNT,
>>       .max_sectors        = SCSI_DEFAULT_MAX_SECTORS,
>>       .use_clustering        = ENABLE_CLUSTERING,
>>       .eh_device_reset_handler = sas_eh_device_reset_handler,
>> diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c 
>> b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
>> index 7e2b020..8a08078 100644
>> --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
>> +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
>> @@ -2224,7 +2224,7 @@ struct device_attribute *host_attrs_v3_hw[] = {
>>       .change_queue_depth    = sas_change_queue_depth,
>>       .bios_param        = sas_bios_param,
>>       .this_id        = -1,
>> -    .sg_tablesize        = SG_ALL,
>> +    .sg_tablesize        = HISI_SAS_SGE_PAGE_CNT,
>>       .max_sectors        = SCSI_DEFAULT_MAX_SECTORS,
>>       .use_clustering        = ENABLE_CLUSTERING,
>>       .eh_device_reset_handler = sas_eh_device_reset_handler,
>> @@ -2366,7 +2366,6 @@ struct device_attribute *host_attrs_v3_hw[] = {
>>       shost->max_lun = ~0;
>>       shost->max_channel = 1;
>>       shost->max_cmd_len = 16;
>> -    shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT);
>>       shost->can_queue = hisi_hba->hw->max_command_entries -
>>           HISI_SAS_RESERVED_IPTT_CNT;
>>       shost->cmd_per_lun = hisi_hba->hw->max_command_entries -
>>
> 
>
John Garry Nov. 21, 2018, 11:45 a.m. UTC | #3 
On 21/11/2018 11:08, Steffen Maier wrote:
> On 11/21/2018 12:02 PM, Steffen Maier wrote:
>> On 11/20/2018 03:59 PM, John Garry wrote:
>>> From: Xiang Chen <chenxiang66@hisilicon.com>
>>>
>>> Sht->sg_tablesize is set in the driver, and it will be assigned to
>>> shost->sg_tablesize in SCSI mid-layer. So it is not necessary to
>>> assign shost->sg_table one more time in the driver.
>>>
>>> In addition to the change, change each scsi_host_template.sg_tablesize
>>> to HISI_SAS_SGE_PAGE_CNT instead of SG_ALL.
>>
>> Might be completely irrelevant, so just as information: I once had
>> problems due to changing (reducing) SHT.sg_tablesize because block
>> queue limits of BSG devices of Scsi_Host and fc_host (not sure if you
>> have an equivalent bsg device for your transport(s)) inherit from SHT,
>> but don't update (automatically) on later updates of
>> shost->sg_tablesize, which in turn affect scsi_devices allocated after
>> the shost update.
>> Cf.
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/s390/scsi?id=5fea4291deacd80188b996d2f555fc6a1940e5d4
>
>
> Figured, your new constant seems to have the same value so no problem.
>

Right, so previously we were doing similar to what you describe - 
setting the value in the SHT and then setting shost->sg_tablesize after 
the host is allocated.

However the values were the same, so in this patch we're just removing 
setting shost->sg_tablesize (again).

Thanks,
John

> #define SG_CHUNK_SIZE    128
> #define SG_ALL    SG_CHUNK_SIZE
> #define HISI_SAS_SGE_PAGE_CNT SG_CHUNK_SIZE
>
>> ("[SCSI] zfcp: block queue limits with data router")
>> if you need more details.
>>
>>> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
>>> Signed-off-by: John Garry <john.garry@huawei.com>
>>> ---
>>>   drivers/scsi/hisi_sas/hisi_sas_main.c  | 1 -
>>>   drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 2 +-
>>>   drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 2 +-
>>>   drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 3 +--
>>>   4 files changed, 3 insertions(+), 5 deletions(-)
>>>
>>> diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c
>>> b/drivers/scsi/hisi_sas/hisi_sas_main.c
>>> index d13a662..cbda48e 100644
>>> --- a/drivers/scsi/hisi_sas/hisi_sas_main.c
>>> +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
>>> @@ -2410,7 +2410,6 @@ int hisi_sas_probe(struct platform_device *pdev,
>>>       shost->max_lun = ~0;
>>>       shost->max_channel = 1;
>>>       shost->max_cmd_len = 16;
>>> -    shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT);
>>>       if (hisi_hba->hw->slot_index_alloc) {
>>>           shost->can_queue = hisi_hba->hw->max_command_entries;
>>>           shost->cmd_per_lun = hisi_hba->hw->max_command_entries;
>>> diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
>>> b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
>>> index d24342b..2d035cc 100644
>>> --- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
>>> +++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
>>> @@ -1815,7 +1815,7 @@ static int hisi_sas_v1_init(struct hisi_hba
>>> *hisi_hba)
>>>       .change_queue_depth    = sas_change_queue_depth,
>>>       .bios_param        = sas_bios_param,
>>>       .this_id        = -1,
>>> -    .sg_tablesize        = SG_ALL,
>>> +    .sg_tablesize        = HISI_SAS_SGE_PAGE_CNT,
>>>       .max_sectors        = SCSI_DEFAULT_MAX_SECTORS,
>>>       .use_clustering        = ENABLE_CLUSTERING,
>>>       .eh_device_reset_handler = sas_eh_device_reset_handler,
>>> diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
>>> b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
>>> index e78a97e..79e58a7 100644
>>> --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
>>> +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
>>> @@ -3570,7 +3570,7 @@ struct device_attribute *host_attrs_v2_hw[] = {
>>>       .change_queue_depth    = sas_change_queue_depth,
>>>       .bios_param        = sas_bios_param,
>>>       .this_id        = -1,
>>> -    .sg_tablesize        = SG_ALL,
>>> +    .sg_tablesize        = HISI_SAS_SGE_PAGE_CNT,
>>>       .max_sectors        = SCSI_DEFAULT_MAX_SECTORS,
>>>       .use_clustering        = ENABLE_CLUSTERING,
>>>       .eh_device_reset_handler = sas_eh_device_reset_handler,
>>> diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
>>> b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
>>> index 7e2b020..8a08078 100644
>>> --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
>>> +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
>>> @@ -2224,7 +2224,7 @@ struct device_attribute *host_attrs_v3_hw[] = {
>>>       .change_queue_depth    = sas_change_queue_depth,
>>>       .bios_param        = sas_bios_param,
>>>       .this_id        = -1,
>>> -    .sg_tablesize        = SG_ALL,
>>> +    .sg_tablesize        = HISI_SAS_SGE_PAGE_CNT,
>>>       .max_sectors        = SCSI_DEFAULT_MAX_SECTORS,
>>>       .use_clustering        = ENABLE_CLUSTERING,
>>>       .eh_device_reset_handler = sas_eh_device_reset_handler,
>>> @@ -2366,7 +2366,6 @@ struct device_attribute *host_attrs_v3_hw[] = {
>>>       shost->max_lun = ~0;
>>>       shost->max_channel = 1;
>>>       shost->max_cmd_len = 16;
>>> -    shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT);
>>>       shost->can_queue = hisi_hba->hw->max_command_entries -
>>>           HISI_SAS_RESERVED_IPTT_CNT;
>>>       shost->cmd_per_lun = hisi_hba->hw->max_command_entries -
>>>
>>
>>
>
>
diff mbox series

Patch

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index d13a662..cbda48e 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -2410,7 +2410,6 @@  int hisi_sas_probe(struct platform_device *pdev,
 	shost->max_lun = ~0;
 	shost->max_channel = 1;
 	shost->max_cmd_len = 16;
-	shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT);
 	if (hisi_hba->hw->slot_index_alloc) {
 		shost->can_queue = hisi_hba->hw->max_command_entries;
 		shost->cmd_per_lun = hisi_hba->hw->max_command_entries;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index d24342b..2d035cc 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -1815,7 +1815,7 @@  static int hisi_sas_v1_init(struct hisi_hba *hisi_hba)
 	.change_queue_depth	= sas_change_queue_depth,
 	.bios_param		= sas_bios_param,
 	.this_id		= -1,
-	.sg_tablesize		= SG_ALL,
+	.sg_tablesize		= HISI_SAS_SGE_PAGE_CNT,
 	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
 	.use_clustering		= ENABLE_CLUSTERING,
 	.eh_device_reset_handler = sas_eh_device_reset_handler,
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index e78a97e..79e58a7 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -3570,7 +3570,7 @@  struct device_attribute *host_attrs_v2_hw[] = {
 	.change_queue_depth	= sas_change_queue_depth,
 	.bios_param		= sas_bios_param,
 	.this_id		= -1,
-	.sg_tablesize		= SG_ALL,
+	.sg_tablesize		= HISI_SAS_SGE_PAGE_CNT,
 	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
 	.use_clustering		= ENABLE_CLUSTERING,
 	.eh_device_reset_handler = sas_eh_device_reset_handler,
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 7e2b020..8a08078 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -2224,7 +2224,7 @@  struct device_attribute *host_attrs_v3_hw[] = {
 	.change_queue_depth	= sas_change_queue_depth,
 	.bios_param		= sas_bios_param,
 	.this_id		= -1,
-	.sg_tablesize		= SG_ALL,
+	.sg_tablesize		= HISI_SAS_SGE_PAGE_CNT,
 	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
 	.use_clustering		= ENABLE_CLUSTERING,
 	.eh_device_reset_handler = sas_eh_device_reset_handler,
@@ -2366,7 +2366,6 @@  struct device_attribute *host_attrs_v3_hw[] = {
 	shost->max_lun = ~0;
 	shost->max_channel = 1;
 	shost->max_cmd_len = 16;
-	shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT);
 	shost->can_queue = hisi_hba->hw->max_command_entries -
 		HISI_SAS_RESERVED_IPTT_CNT;
 	shost->cmd_per_lun = hisi_hba->hw->max_command_entries -