scsi: hisi_sas: unsupported DIX between OS and HBA only for SATA device

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA
Signed-off-by: NYang Xingui <yangxingui@huawei.com>
Reviewed-by: NOuyangdelong <ouyangdelong@huawei.com>
Reviewed-by: NKangfenglong <kangfenglong@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/scsi/hisi_sas/hisi_sas.h

@@ -77,6 +77,16 @@
 #define HISI_SAS_SATA_PROTOCOL_FPDMA		0x8
 #define HISI_SAS_SATA_PROTOCOL_ATAPI		0x10
 
+#define HISI_SAS_DIF_PROT_MASK (SHOST_DIF_TYPE1_PROTECTION | \
+				SHOST_DIF_TYPE2_PROTECTION | \
+				SHOST_DIF_TYPE3_PROTECTION)
+
+#define HISI_SAS_DIX_PROT_MASK (SHOST_DIX_TYPE1_PROTECTION | \
+				SHOST_DIX_TYPE2_PROTECTION | \
+				SHOST_DIX_TYPE3_PROTECTION)
+
+#define HISI_SAS_PROT_MASK (HISI_SAS_DIF_PROT_MASK | HISI_SAS_DIX_PROT_MASK)
+
 #define CLEAR_ITCT_TIMEOUT	20
 
 struct hisi_hba;

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

@@ -3357,9 +3357,14 @@ hisi_sas_shost_alloc_pci(struct pci_dev *pdev)
 	hisi_hba->dev = dev;
 	hisi_hba->shost = shost;
 	SHOST_TO_SAS_HA(shost) = &hisi_hba->sha;
-	hisi_hba->enable_dix_dif = enable_dix_dif;
 	hisi_hba->user_ctl_irq = user_ctl_irq;
 
+	if (enable_dix_dif & ~HISI_SAS_PROT_MASK)
+		dev_err(dev, "unsupported protection mask 0x%x, using default (0x0)\n",
+			enable_dix_dif);
+	else
+		hisi_hba->enable_dix_dif = enable_dix_dif;
+
 	timer_setup(&hisi_hba->timer, NULL, 0);
 
 	if (hisi_sas_get_fw_info(hisi_hba) < 0)