diff mbox

[v3,11/32] scsi: hisi_sas: add phy SAS ADDR initialization

Message ID 1447086757-147706-12-git-send-email-john.garry@huawei.com (mailing list archive)
State Superseded, archived
Headers show

Commit Message

John Garry Nov. 9, 2015, 4:32 p.m. UTC
The SAS address for the HBA comes from the device tree.

Signed-off-by: John Garry <john.garry@huawei.com>
---
 drivers/scsi/hisi_sas/hisi_sas.h      |  1 +
 drivers/scsi/hisi_sas/hisi_sas_main.c | 12 ++++++++++++
 2 files changed, 13 insertions(+)

Comments

Arnd Bergmann Nov. 9, 2015, 4:28 p.m. UTC | #1
On Tuesday 10 November 2015 00:32:16 John Garry wrote:
>  }
>  
> +static void hisi_sas_init_add(struct hisi_hba *hisi_hba)
> +{
> +       int i;
> +
> +       for (i = 0; i < hisi_hba->n_phy; i++)
> +               memcpy(&hisi_hba->phy[i].dev_sas_addr,
> +                      hisi_hba->sas_addr,
> +                      SAS_ADDR_SIZE);
> +}

I don't know the background here, but I thought it would have to
be a different address on each phy. Are you sure this is not the
case?

	Arnd
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John Garry Nov. 9, 2015, 4:51 p.m. UTC | #2
On 09/11/2015 16:28, Arnd Bergmann wrote:
> On Tuesday 10 November 2015 00:32:16 John Garry wrote:
>>   }
>>
>> +static void hisi_sas_init_add(struct hisi_hba *hisi_hba)
>> +{
>> +       int i;
>> +
>> +       for (i = 0; i < hisi_hba->n_phy; i++)
>> +               memcpy(&hisi_hba->phy[i].dev_sas_addr,
>> +                      hisi_hba->sas_addr,
>> +                      SAS_ADDR_SIZE);
>> +}
>
> I don't know the background here, but I thought it would have to
> be a different address on each phy. Are you sure this is not the
> case?
>
> 	Arnd
>
> .
>

Hi,

Each controller should have a unique SAS addr but not each phy.

Regards,
john

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diff mbox

Patch

diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 315fe46..c50384f 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -39,6 +39,7 @@ 
 
 struct hisi_sas_phy {
 	struct asd_sas_phy	sas_phy;
+	u64		dev_sas_addr;
 };
 
 struct hisi_sas_port {
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 79d6530..9e6eebe 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -281,6 +281,16 @@  err_out:
 	return NULL;
 }
 
+static void hisi_sas_init_add(struct hisi_hba *hisi_hba)
+{
+	int i;
+
+	for (i = 0; i < hisi_hba->n_phy; i++)
+		memcpy(&hisi_hba->phy[i].dev_sas_addr,
+		       hisi_hba->sas_addr,
+		       SAS_ADDR_SIZE);
+}
+
 int hisi_sas_probe(struct platform_device *pdev,
 			 const struct hisi_sas_hw *hw)
 {
@@ -334,6 +344,8 @@  int hisi_sas_probe(struct platform_device *pdev,
 		sha->sas_port[i] = &hisi_hba->port[i].sas_port;
 	}
 
+	hisi_sas_init_add(hisi_hba);
+
 	rc = scsi_add_host(shost, &pdev->dev);
 	if (rc)
 		goto err_out_ha;