scsi: lpfc: Add support to display if adapter dumps are available

Currently, if there has been an issue whereby an adapter dump was taken,
there is nothing displayed to hint that it is present. Utilities must be
run and they must query for the status in order to then download the dump.

Add a message to the driver to query dump image presence when initializing
the SLI Port.

Link: https://lore.kernel.org/r/20200630215001.70793-12-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/lpfc/lpfc_hw4.h

@@ -650,6 +650,9 @@ struct lpfc_register {
 #define lpfc_sliport_status_oti_SHIFT	29
 #define lpfc_sliport_status_oti_MASK	0x1
 #define lpfc_sliport_status_oti_WORD	word0
+#define lpfc_sliport_status_dip_SHIFT	25
+#define lpfc_sliport_status_dip_MASK	0x1
+#define lpfc_sliport_status_dip_WORD	word0
 #define lpfc_sliport_status_rn_SHIFT	24
 #define lpfc_sliport_status_rn_MASK	0x1
 #define lpfc_sliport_status_rn_WORD	word0

drivers/scsi/lpfc/lpfc_sli.c

@@ -7300,6 +7300,26 @@ lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
 	return 1;
 }
 
+static void lpfc_sli4_dip(struct lpfc_hba *phba)
+{
+	uint32_t if_type;
+
+	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+	if (if_type == LPFC_SLI_INTF_IF_TYPE_2 ||
+	    if_type == LPFC_SLI_INTF_IF_TYPE_6) {
+		struct lpfc_register reg_data;
+
+		if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
+			       &reg_data.word0))
+			return;
+
+		if (bf_get(lpfc_sliport_status_dip, &reg_data))
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"2904 Firmware Dump Image Present"
+					" on Adapter");
+	}
+}
+
 /**
  * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
  * @phba: Pointer to HBA context object.
@@ -7338,6 +7358,8 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
 		spin_unlock_irq(&phba->hbalock);
 	}
 
+	lpfc_sli4_dip(phba);
+
 	/*
 	 * Allocate a single mailbox container for initializing the
 	 * port.