Re: [PATCH 2/4] tcm_qla2xxx: T10-Dif set harware capability
On 4/1/2014 8:40 PM, Nicholas A. Bellinger wrote: So no way to get it centralized? Yes, still working on how that might look.. I still don't understand the iscsi/iser constraint. Every other fabric aside from iscsi/iser could simply provide a TFO->get_fabric_prot(se_tpg) to query for supported PI. The reason why iscsi/iser is unique is because we can have different network portals (eg: iser protected + traditional iscsi unprotected) on the same se_tpg endpoint. I see. That seems solvable to me... perhaps the easiest thing is to just go ahead and support T10-PI in iscsi-tcp (SW)... Sagi. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 2/4] tcm_qla2xxx: T10-Dif set harware capability
On Tue, 2014-04-01 at 11:04 +0300, Sagi Grimberg wrote:
> On 4/1/2014 4:11 AM, Nicholas A. Bellinger wrote:
>
> +
> +if (scsi_host_get_prot(lport->qla_vha->host)) {
> +tpg->se_tpg.fabric_sup_prot_type = (TARGET_DIF_TYPE0_PROT|
> +TARGET_DIF_TYPE1_PROT|TARGET_DIF_TYPE2_PROT|
> +TARGET_DIF_TYPE3_PROT);
> +
> +tpg->se_tpg.fabric_sup_guard_type = TARGET_GUARD_CRC|
> +TARGET_GUARD_IP;
> +}
>
> ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn,
> &tpg->se_tpg, tpg,
> TRANSPORT_TPG_TYPE_NORMAL);
> @@ -1127,6 +1147,8 @@ static ssize_t tcm_qla2xxx_npiv_tpg_store_enable(
> qlt_stop_phase1(vha->vha_tgt.qla_tgt);
> }
>
> +core_tpg_set_fabric_t10dif(se_tpg, tpg->tpg_attrib.t10dif_force_on);
> +
> >>> Any way we can get this logic to be shared also with iscsi, srp, etc...
> >>> all fabrics should
> >>> be set with t10dif right? so I would imagine it would be better to
> >>> centralize it right?
> >> QT> Not sure how you want this logic to be shared. This patch is specific
> >> to Qlogic driver registering its capabilities.
> >>
> > I think that Sagi was referring to a target_core_fabric_ops callback to
> > query protection information from the fabric..
> >
> > As mentioned in the last response, this would work just fine on
> > a /sys/kernel/config/target/$FABRIC/$WWPN/$TPGT context basis, if it
> > wasn't for iscsi-target / iser-target sharing the same endpoint while
> > still allowing different protection modes.
>
> So no way to get it centralized?
Yes, still working on how that might look..
> I still don't understand the iscsi/iser constraint.
Every other fabric aside from iscsi/iser could simply provide a
TFO->get_fabric_prot(se_tpg) to query for supported PI.
The reason why iscsi/iser is unique is because we can have different
network portals (eg: iser protected + traditional iscsi unprotected) on
the same se_tpg endpoint.
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Re: [PATCH 2/4] tcm_qla2xxx: T10-Dif set harware capability
On 4/1/2014 4:11 AM, Nicholas A. Bellinger wrote:
+
+if (scsi_host_get_prot(lport->qla_vha->host)) {
+tpg->se_tpg.fabric_sup_prot_type = (TARGET_DIF_TYPE0_PROT|
+TARGET_DIF_TYPE1_PROT|TARGET_DIF_TYPE2_PROT|
+TARGET_DIF_TYPE3_PROT);
+
+tpg->se_tpg.fabric_sup_guard_type = TARGET_GUARD_CRC|
+TARGET_GUARD_IP;
+}
ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn,
&tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
@@ -1127,6 +1147,8 @@ static ssize_t tcm_qla2xxx_npiv_tpg_store_enable(
qlt_stop_phase1(vha->vha_tgt.qla_tgt);
}
+core_tpg_set_fabric_t10dif(se_tpg, tpg->tpg_attrib.t10dif_force_on);
+
Any way we can get this logic to be shared also with iscsi, srp, etc...
all fabrics should
be set with t10dif right? so I would imagine it would be better to
centralize it right?
QT> Not sure how you want this logic to be shared. This patch is specific
to Qlogic driver registering its capabilities.
I think that Sagi was referring to a target_core_fabric_ops callback to
query protection information from the fabric..
As mentioned in the last response, this would work just fine on
a /sys/kernel/config/target/$FABRIC/$WWPN/$TPGT context basis, if it
wasn't for iscsi-target / iser-target sharing the same endpoint while
still allowing different protection modes.
So no way to get it centralized? I still don't understand the iscsi/iser
constraint.
Sagi.
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Re: [PATCH 2/4] tcm_qla2xxx: T10-Dif set harware capability
On Mon, 2014-03-31 at 15:38 +, Quinn Tran wrote:
> On 3/28/14 5:12 PM, "sagi grimberg" wrote:
>
> >On 3/29/2014 2:05 AM, Quinn Tran wrote:
> >> Set Protection Type(1,2,3) capabilities, Guarg type (CRC/IPchksm)
> >> capabilities bits to let TCM core knows of HW/fabric capabilities.
> >>
> >> Signed-off-by: Nicholas Bellinger
> >> Signed-off-by: Giridhar Malavali
> >> ---
> >> drivers/scsi/qla2xxx/tcm_qla2xxx.c | 23 +++
> >> drivers/scsi/qla2xxx/tcm_qla2xxx.h | 1 +
> >> 2 files changed, 24 insertions(+)
> >>
> >> diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
> >>b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
> >> index b23a0ff..4d93081 100644
> >> --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
> >> +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
> >> +
> >> +if (scsi_host_get_prot(lport->qla_vha->host)) {
> >> +tpg->se_tpg.fabric_sup_prot_type = (TARGET_DIF_TYPE0_PROT|
> >> +TARGET_DIF_TYPE1_PROT|TARGET_DIF_TYPE2_PROT|
> >> +TARGET_DIF_TYPE3_PROT);
> >> +
> >> +tpg->se_tpg.fabric_sup_guard_type = TARGET_GUARD_CRC|
> >> +TARGET_GUARD_IP;
> >> +}
> >>
> >> ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn,
> >> &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
> >> @@ -1127,6 +1147,8 @@ static ssize_t tcm_qla2xxx_npiv_tpg_store_enable(
> >> qlt_stop_phase1(vha->vha_tgt.qla_tgt);
> >> }
> >>
> >> +core_tpg_set_fabric_t10dif(se_tpg, tpg->tpg_attrib.t10dif_force_on);
> >> +
> >
> >Any way we can get this logic to be shared also with iscsi, srp, etc...
> >all fabrics should
> >be set with t10dif right? so I would imagine it would be better to
> >centralize it right?
>
> QT> Not sure how you want this logic to be shared. This patch is specific
> to Qlogic driver registering its capabilities.
>
I think that Sagi was referring to a target_core_fabric_ops callback to
query protection information from the fabric..
As mentioned in the last response, this would work just fine on
a /sys/kernel/config/target/$FABRIC/$WWPN/$TPGT context basis, if it
wasn't for iscsi-target / iser-target sharing the same endpoint while
still allowing different protection modes.
--nab
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Re: [PATCH 2/4] tcm_qla2xxx: T10-Dif set harware capability
Regards,
Quinn Tran
On 3/28/14 5:12 PM, "sagi grimberg" wrote:
>On 3/29/2014 2:05 AM, Quinn Tran wrote:
>> Set Protection Type(1,2,3) capabilities, Guarg type (CRC/IPchksm)
>> capabilities bits to let TCM core knows of HW/fabric capabilities.
>>
>> Signed-off-by: Nicholas Bellinger
>> Signed-off-by: Giridhar Malavali
>> ---
>> drivers/scsi/qla2xxx/tcm_qla2xxx.c | 23 +++
>> drivers/scsi/qla2xxx/tcm_qla2xxx.h | 1 +
>> 2 files changed, 24 insertions(+)
>>
>> diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
>>b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
>> index b23a0ff..4d93081 100644
>> --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
>> +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
>> @@ -910,12 +910,20 @@ DEF_QLA_TPG_ATTR_BOOL(demo_mode_login_only);
>> DEF_QLA_TPG_ATTRIB(demo_mode_login_only);
>> QLA_TPG_ATTR(demo_mode_login_only, S_IRUGO | S_IWUSR);
>>
>> +/*
>> + * Define tcm_qla2xxx_tpg_attrib_s_t10dif_force_on
>> + */
>> +DEF_QLA_TPG_ATTR_BOOL(t10dif_force_on);
>> +DEF_QLA_TPG_ATTRIB(t10dif_force_on);
>> +QLA_TPG_ATTR(t10dif_force_on, S_IRUGO | S_IWUSR);
>> +
>> static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
>> &tcm_qla2xxx_tpg_attrib_generate_node_acls.attr,
>> &tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr,
>> &tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr,
>> &tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr,
>> &tcm_qla2xxx_tpg_attrib_demo_mode_login_only.attr,
>> +&tcm_qla2xxx_tpg_attrib_t10dif_force_on.attr,
>> NULL,
>> };
>>
>> @@ -1049,6 +1057,18 @@ static struct se_portal_group
>>*tcm_qla2xxx_make_tpg(
>> tpg->tpg_attrib.demo_mode_write_protect = 1;
>> tpg->tpg_attrib.cache_dynamic_acls = 1;
>> tpg->tpg_attrib.demo_mode_login_only = 1;
>> +tpg->tpg_attrib.t10dif_force_on = 0;
>> +tpg->se_tpg.fabric_sup_prot_type = 0;
>> +tpg->se_tpg.fabric_sup_guard_type = 0;
>
>You can lose guard_type - this is more relevant to the initiator side.
QT> OK
>
>> +
>> +if (scsi_host_get_prot(lport->qla_vha->host)) {
>> +tpg->se_tpg.fabric_sup_prot_type = (TARGET_DIF_TYPE0_PROT|
>> +TARGET_DIF_TYPE1_PROT|TARGET_DIF_TYPE2_PROT|
>> +TARGET_DIF_TYPE3_PROT);
>> +
>> +tpg->se_tpg.fabric_sup_guard_type = TARGET_GUARD_CRC|
>> +TARGET_GUARD_IP;
>> +}
>>
>> ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn,
>> &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
>> @@ -1127,6 +1147,8 @@ static ssize_t tcm_qla2xxx_npiv_tpg_store_enable(
>> qlt_stop_phase1(vha->vha_tgt.qla_tgt);
>> }
>>
>> +core_tpg_set_fabric_t10dif(se_tpg, tpg->tpg_attrib.t10dif_force_on);
>> +
>
>Any way we can get this logic to be shared also with iscsi, srp, etc...
>all fabrics should
>be set with t10dif right? so I would imagine it would be better to
>centralize it right?
QT> Not sure how you want this logic to be shared. This patch is specific
to Qlogic driver registering its capabilities.
>
>> return count;
>> }
>>
>> @@ -1169,6 +1191,7 @@ static struct se_portal_group
>>*tcm_qla2xxx_npiv_make_tpg(
>> tpg->tpg_attrib.demo_mode_write_protect = 1;
>> tpg->tpg_attrib.cache_dynamic_acls = 1;
>> tpg->tpg_attrib.demo_mode_login_only = 1;
>> +tpg->tpg_attrib.t10dif_force_on = 0;
>>
>> ret = core_tpg_register(&tcm_qla2xxx_npiv_fabric_configfs->tf_ops,
>>wwn,
>> &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
>> diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.h
>>b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
>> index 33aaac8..62fdce3 100644
>> --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.h
>> +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
>> @@ -28,6 +28,7 @@ struct tcm_qla2xxx_tpg_attrib {
>> int demo_mode_write_protect;
>> int prod_mode_write_protect;
>> int demo_mode_login_only;
>> +int t10dif_force_on;
>> };
>>
>> struct tcm_qla2xxx_tpg {
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Re: [PATCH 2/4] tcm_qla2xxx: T10-Dif set harware capability
On 3/29/2014 2:05 AM, Quinn Tran wrote:
Set Protection Type(1,2,3) capabilities, Guarg type (CRC/IPchksm)
capabilities bits to let TCM core knows of HW/fabric capabilities.
Signed-off-by: Nicholas Bellinger
Signed-off-by: Giridhar Malavali
---
drivers/scsi/qla2xxx/tcm_qla2xxx.c | 23 +++
drivers/scsi/qla2xxx/tcm_qla2xxx.h | 1 +
2 files changed, 24 insertions(+)
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index b23a0ff..4d93081 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -910,12 +910,20 @@ DEF_QLA_TPG_ATTR_BOOL(demo_mode_login_only);
DEF_QLA_TPG_ATTRIB(demo_mode_login_only);
QLA_TPG_ATTR(demo_mode_login_only, S_IRUGO | S_IWUSR);
+/*
+ * Define tcm_qla2xxx_tpg_attrib_s_t10dif_force_on
+ */
+DEF_QLA_TPG_ATTR_BOOL(t10dif_force_on);
+DEF_QLA_TPG_ATTRIB(t10dif_force_on);
+QLA_TPG_ATTR(t10dif_force_on, S_IRUGO | S_IWUSR);
+
static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
&tcm_qla2xxx_tpg_attrib_generate_node_acls.attr,
&tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr,
&tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr,
&tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr,
&tcm_qla2xxx_tpg_attrib_demo_mode_login_only.attr,
+ &tcm_qla2xxx_tpg_attrib_t10dif_force_on.attr,
NULL,
};
@@ -1049,6 +1057,18 @@ static struct se_portal_group *tcm_qla2xxx_make_tpg(
tpg->tpg_attrib.demo_mode_write_protect = 1;
tpg->tpg_attrib.cache_dynamic_acls = 1;
tpg->tpg_attrib.demo_mode_login_only = 1;
+ tpg->tpg_attrib.t10dif_force_on = 0;
+ tpg->se_tpg.fabric_sup_prot_type = 0;
+ tpg->se_tpg.fabric_sup_guard_type = 0;
You can lose guard_type - this is more relevant to the initiator side.
+
+ if (scsi_host_get_prot(lport->qla_vha->host)) {
+ tpg->se_tpg.fabric_sup_prot_type = (TARGET_DIF_TYPE0_PROT|
+ TARGET_DIF_TYPE1_PROT|TARGET_DIF_TYPE2_PROT|
+ TARGET_DIF_TYPE3_PROT);
+
+ tpg->se_tpg.fabric_sup_guard_type = TARGET_GUARD_CRC|
+ TARGET_GUARD_IP;
+ }
ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn,
&tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
@@ -1127,6 +1147,8 @@ static ssize_t tcm_qla2xxx_npiv_tpg_store_enable(
qlt_stop_phase1(vha->vha_tgt.qla_tgt);
}
+ core_tpg_set_fabric_t10dif(se_tpg, tpg->tpg_attrib.t10dif_force_on);
+
Any way we can get this logic to be shared also with iscsi, srp, etc...
all fabrics should
be set with t10dif right? so I would imagine it would be better to
centralize it right?
return count;
}
@@ -1169,6 +1191,7 @@ static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(
tpg->tpg_attrib.demo_mode_write_protect = 1;
tpg->tpg_attrib.cache_dynamic_acls = 1;
tpg->tpg_attrib.demo_mode_login_only = 1;
+ tpg->tpg_attrib.t10dif_force_on = 0;
ret = core_tpg_register(&tcm_qla2xxx_npiv_fabric_configfs->tf_ops, wwn,
&tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.h
b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
index 33aaac8..62fdce3 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.h
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
@@ -28,6 +28,7 @@ struct tcm_qla2xxx_tpg_attrib {
int demo_mode_write_protect;
int prod_mode_write_protect;
int demo_mode_login_only;
+ int t10dif_force_on;
};
struct tcm_qla2xxx_tpg {
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[PATCH 2/4] tcm_qla2xxx: T10-Dif set harware capability
Set Protection Type(1,2,3) capabilities, Guarg type (CRC/IPchksm)
capabilities bits to let TCM core knows of HW/fabric capabilities.
Signed-off-by: Nicholas Bellinger
Signed-off-by: Giridhar Malavali
---
drivers/scsi/qla2xxx/tcm_qla2xxx.c | 23 +++
drivers/scsi/qla2xxx/tcm_qla2xxx.h | 1 +
2 files changed, 24 insertions(+)
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index b23a0ff..4d93081 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -910,12 +910,20 @@ DEF_QLA_TPG_ATTR_BOOL(demo_mode_login_only);
DEF_QLA_TPG_ATTRIB(demo_mode_login_only);
QLA_TPG_ATTR(demo_mode_login_only, S_IRUGO | S_IWUSR);
+/*
+ * Define tcm_qla2xxx_tpg_attrib_s_t10dif_force_on
+ */
+DEF_QLA_TPG_ATTR_BOOL(t10dif_force_on);
+DEF_QLA_TPG_ATTRIB(t10dif_force_on);
+QLA_TPG_ATTR(t10dif_force_on, S_IRUGO | S_IWUSR);
+
static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
&tcm_qla2xxx_tpg_attrib_generate_node_acls.attr,
&tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr,
&tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr,
&tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr,
&tcm_qla2xxx_tpg_attrib_demo_mode_login_only.attr,
+ &tcm_qla2xxx_tpg_attrib_t10dif_force_on.attr,
NULL,
};
@@ -1049,6 +1057,18 @@ static struct se_portal_group *tcm_qla2xxx_make_tpg(
tpg->tpg_attrib.demo_mode_write_protect = 1;
tpg->tpg_attrib.cache_dynamic_acls = 1;
tpg->tpg_attrib.demo_mode_login_only = 1;
+ tpg->tpg_attrib.t10dif_force_on = 0;
+ tpg->se_tpg.fabric_sup_prot_type = 0;
+ tpg->se_tpg.fabric_sup_guard_type = 0;
+
+ if (scsi_host_get_prot(lport->qla_vha->host)) {
+ tpg->se_tpg.fabric_sup_prot_type = (TARGET_DIF_TYPE0_PROT|
+ TARGET_DIF_TYPE1_PROT|TARGET_DIF_TYPE2_PROT|
+ TARGET_DIF_TYPE3_PROT);
+
+ tpg->se_tpg.fabric_sup_guard_type = TARGET_GUARD_CRC|
+ TARGET_GUARD_IP;
+ }
ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn,
&tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
@@ -1127,6 +1147,8 @@ static ssize_t tcm_qla2xxx_npiv_tpg_store_enable(
qlt_stop_phase1(vha->vha_tgt.qla_tgt);
}
+ core_tpg_set_fabric_t10dif(se_tpg, tpg->tpg_attrib.t10dif_force_on);
+
return count;
}
@@ -1169,6 +1191,7 @@ static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(
tpg->tpg_attrib.demo_mode_write_protect = 1;
tpg->tpg_attrib.cache_dynamic_acls = 1;
tpg->tpg_attrib.demo_mode_login_only = 1;
+ tpg->tpg_attrib.t10dif_force_on = 0;
ret = core_tpg_register(&tcm_qla2xxx_npiv_fabric_configfs->tf_ops, wwn,
&tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.h
b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
index 33aaac8..62fdce3 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.h
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
@@ -28,6 +28,7 @@ struct tcm_qla2xxx_tpg_attrib {
int demo_mode_write_protect;
int prod_mode_write_protect;
int demo_mode_login_only;
+ int t10dif_force_on;
};
struct tcm_qla2xxx_tpg {
--
1.8.4.GIT
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