scsi: qla2xxx: edif: Fix EDIF enable flag

edif_enabled is prematurely turned on if hardware is capable of handling
the feature.  However, firmware also needs to support EDIF before enabling
this bit.

Link: https://lore.kernel.org/r/20210817051315.2477-4-njavali@marvell.comSigned-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_def.h

@@ -4021,6 +4021,7 @@ struct qla_hw_data {
 		uint32_t	scm_supported_f:1;
 				/* Enabled in Driver */
 		uint32_t	scm_enabled:1;
+		uint32_t	edif_hw:1;
 		uint32_t	edif_enabled:1;
 		uint32_t	plogi_template_valid:1;
 		uint32_t	port_isolated:1;
@@ -4433,6 +4434,7 @@ struct qla_hw_data {
 	/* Cisco fabric attached */
 #define FW_ATTR_EXT0_SCM_CISCO		0x00002000
 #define FW_ATTR_EXT0_NVME2	BIT_13
+#define FW_ATTR_EXT0_EDIF	BIT_5
 	uint16_t	fw_attributes_ext[2];
 	uint32_t	fw_memory_size;
 	uint32_t	fw_transfer_size;

drivers/scsi/qla2xxx/qla_mbx.c

@@ -663,6 +663,7 @@ qla2x00_load_ram(scsi_qla_host_t *vha, dma_addr_t req_dma, uint32_t risc_addr,
 }
 
 #define	NVME_ENABLE_FLAG	BIT_3
+#define	EDIF_HW_SUPPORT		BIT_10
 
 /*
  * qla2x00_execute_fw
@@ -795,10 +796,10 @@ qla2x00_execute_fw(scsi_qla_host_t *vha, uint32_t risc_addr)
 		}
 	}
 
-	if (IS_QLA28XX(ha) && (mcp->mb[5] & BIT_10) && ql2xsecenable) {
-		ha->flags.edif_enabled = 1;
+	if (IS_QLA28XX(ha) && (mcp->mb[5] & EDIF_HW_SUPPORT)) {
+		ha->flags.edif_hw = 1;
 		ql_log(ql_log_info, vha, 0xffff,
-		    "%s: edif is enabled\n", __func__);
+		    "%s: edif HW\n", __func__);
 	}
 
 done:
@@ -1136,6 +1137,13 @@ qla2x00_get_fw_version(scsi_qla_host_t *vha)
 			       ha->fw_attributes_ext[0]);
 			vha->flags.nvme2_enabled = 1;
 		}
+
+		if (IS_QLA28XX(ha) && ha->flags.edif_hw && ql2xsecenable &&
+		    (ha->fw_attributes_ext[0] & FW_ATTR_EXT0_EDIF)) {
+			ha->flags.edif_enabled = 1;
+			ql_log(ql_log_info + ql_dbg_edif, vha, 0xffff,
+			       "%s: edif is enabled\n", __func__);
+		}
 	}
 
 	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {