scsi: qla2xxx: Add 28xx flash primary/secondary status/image mechanism

Includes the following:
- correction to 27xx image status struct;
- factoring of 27xx image status validating routines to make common;
- image status generation compare that works across zero wrap;
- bsg interface to report current active images (as loaded by driver).
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Mike Hernandez <mhernandez@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_attr.c

@@ -154,6 +154,8 @@ qla2x00_sysfs_read_nvram(struct file *filp, struct kobject *kobj,
 	struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
 	struct qla_hw_data *ha = vha->hw;
+	uint32_t faddr;
+	struct active_regions active_regions = { };
 
 	if (!capable(CAP_SYS_ADMIN))
 		return 0;
@@ -164,11 +166,21 @@ qla2x00_sysfs_read_nvram(struct file *filp, struct kobject *kobj,
 		return -EAGAIN;
 	}
 
-	if (IS_NOCACHE_VPD_TYPE(ha))
-		ha->isp_ops->read_optrom(vha, ha->nvram, ha->flt_region_nvram << 2,
-		    ha->nvram_size);
+	if (!IS_NOCACHE_VPD_TYPE(ha)) {
+		mutex_unlock(&ha->optrom_mutex);
+		goto skip;
+	}
+
+	faddr = ha->flt_region_nvram;
+	if (IS_QLA28XX(ha)) {
+		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
+			faddr = ha->flt_region_nvram_sec;
+	}
+	ha->isp_ops->read_optrom(vha, ha->nvram, faddr << 2, ha->nvram_size);
+
 	mutex_unlock(&ha->optrom_mutex);
 
+skip:
 	return memory_read_from_buffer(buf, count, &off, ha->nvram,
 					ha->nvram_size);
 }
@@ -504,6 +516,7 @@ qla2x00_sysfs_read_vpd(struct file *filp, struct kobject *kobj,
 	    struct device, kobj)));
 	struct qla_hw_data *ha = vha->hw;
 	uint32_t faddr;
+	struct active_regions active_regions = { };
 
 	if (unlikely(pci_channel_offline(ha->pdev)))
 		return -EAGAIN;
@@ -516,10 +529,17 @@ qla2x00_sysfs_read_vpd(struct file *filp, struct kobject *kobj,
 
 	faddr = ha->flt_region_vpd << 2;
 
-	if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
-	    qla27xx_find_valid_image(vha) == QLA27XX_SECONDARY_IMAGE)
+	if (IS_QLA28XX(ha)) {
+		qla28xx_get_aux_images(vha, &active_regions);
+		if (active_regions.aux.vpd_nvram == QLA27XX_SECONDARY_IMAGE)
 			faddr = ha->flt_region_vpd_sec << 2;
 
+		ql_dbg(ql_dbg_init, vha, 0x7070,
+		    "Loading %s nvram image.\n",
+		    active_regions.aux.vpd_nvram == QLA27XX_PRIMARY_IMAGE ?
+		    "primary" : "secondary");
+	}
+
 	mutex_lock(&ha->optrom_mutex);
 	if (qla2x00_chip_is_down(vha)) {
 		mutex_unlock(&ha->optrom_mutex);
@@ -528,6 +548,8 @@ qla2x00_sysfs_read_vpd(struct file *filp, struct kobject *kobj,
 
 	ha->isp_ops->read_optrom(vha, ha->vpd, faddr, ha->vpd_size);
 	mutex_unlock(&ha->optrom_mutex);
+
+	ha->isp_ops->read_optrom(vha, ha->vpd, faddr, ha->vpd_size);
 skip:
 	return memory_read_from_buffer(buf, count, &off, ha->vpd, ha->vpd_size);
 }

drivers/scsi/qla2xxx/qla_bsg.c

@@ -2388,6 +2388,45 @@ qla2x00_do_dport_diagnostics(struct bsg_job *bsg_job)
 	return 0;
 }
 
+static int
+qla2x00_get_flash_image_status(struct bsg_job *bsg_job)
+{
+	scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
+	struct fc_bsg_reply *bsg_reply = bsg_job->reply;
+	struct qla_hw_data *ha = vha->hw;
+	struct qla_active_regions regions = { };
+	struct active_regions active_regions = { };
+
+	qla28xx_get_aux_images(vha, &active_regions);
+	regions.global_image = active_regions.global;
+
+	if (IS_QLA28XX(ha)) {
+		qla27xx_get_active_image(vha, &active_regions);
+		regions.board_config = active_regions.aux.board_config;
+		regions.vpd_nvram = active_regions.aux.vpd_nvram;
+		regions.npiv_config_0_1 = active_regions.aux.npiv_config_0_1;
+		regions.npiv_config_2_3 = active_regions.aux.npiv_config_2_3;
+	}
+
+	ql_dbg(ql_dbg_user, vha, 0x70e1,
+	    "%s(%lu): FW=%u BCFG=%u VPDNVR=%u NPIV01=%u NPIV02=%u\n",
+	    __func__, vha->host_no, regions.global_image,
+	    regions.board_config, regions.vpd_nvram,
+	    regions.npiv_config_0_1, regions.npiv_config_2_3);
+
+	sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
+	    bsg_job->reply_payload.sg_cnt, &regions, sizeof(regions));
+
+	bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
+	bsg_reply->reply_payload_rcv_len = sizeof(regions);
+	bsg_reply->result = DID_OK << 16;
+	bsg_job->reply_len = sizeof(struct fc_bsg_reply);
+	bsg_job_done(bsg_job, bsg_reply->result,
+	    bsg_reply->reply_payload_rcv_len);
+
+	return 0;
+}
+
 static int
 qla2x00_process_vendor_specific(struct bsg_job *bsg_job)
 {
@@ -2461,6 +2500,9 @@ qla2x00_process_vendor_specific(struct bsg_job *bsg_job)
 	case QL_VND_DPORT_DIAGNOSTICS:
 		return qla2x00_do_dport_diagnostics(bsg_job);
 
+	case QL_VND_SS_GET_FLASH_IMAGE_STATUS:
+		return qla2x00_get_flash_image_status(bsg_job);
+
 	default:
 		return -ENOSYS;
 	}

drivers/scsi/qla2xxx/qla_bsg.h

@@ -31,6 +31,7 @@
 #define QL_VND_GET_PRIV_STATS	0x18
 #define QL_VND_DPORT_DIAGNOSTICS	0x19
 #define QL_VND_GET_PRIV_STATS_EX	0x1A
+#define QL_VND_SS_GET_FLASH_IMAGE_STATUS	0x1E
 
 /* BSG Vendor specific subcode returns */
 #define EXT_STATUS_OK			0
@@ -279,4 +280,14 @@ struct qla_dport_diag {
 #define QLA_DPORT_RESULT	0x0
 #define QLA_DPORT_START		0x2
 
+/* active images in flash */
+struct qla_active_regions {
+	uint8_t global_image;
+	uint8_t board_config;
+	uint8_t vpd_nvram;
+	uint8_t npiv_config_0_1;
+	uint8_t npiv_config_2_3;
+	uint8_t reserved[32];
+} __packed;
+
 #endif

drivers/scsi/qla2xxx/qla_def.h

@@ -1204,6 +1204,9 @@ struct mbx_cmd_32 {
 #define QLA27XX_IMG_STATUS_VER_MINOR    0x00
 #define QLA27XX_IMG_STATUS_SIGN   0xFACEFADE
 #define QLA28XX_IMG_STATUS_SIGN    0xFACEFADF
+#define QLA28XX_IMG_STATUS_SIGN		0xFACEFADF
+#define QLA28XX_AUX_IMG_STATUS_SIGN	0xFACEFAED
+#define QLA27XX_DEFAULT_IMAGE		0
 #define QLA27XX_PRIMARY_IMAGE  1
 #define QLA27XX_SECONDARY_IMAGE    2
 
@@ -4116,6 +4119,7 @@ struct qla_hw_data {
 	uint32_t	fdt_protect_sec_cmd;
 	uint32_t	fdt_wrt_sts_reg_cmd;
 
+	struct {
 		uint32_t	flt_region_flt;
 		uint32_t	flt_region_fdt;
 		uint32_t	flt_region_boot;
@@ -4123,15 +4127,20 @@ struct qla_hw_data {
 		uint32_t	flt_region_fw;
 		uint32_t	flt_region_fw_sec;
 		uint32_t	flt_region_vpd_nvram;
+		uint32_t	flt_region_vpd_nvram_sec;
 		uint32_t	flt_region_vpd;
 		uint32_t	flt_region_vpd_sec;
 		uint32_t	flt_region_nvram;
+		uint32_t	flt_region_nvram_sec;
 		uint32_t	flt_region_npiv_conf;
 		uint32_t	flt_region_gold_fw;
 		uint32_t	flt_region_fcp_prio;
 		uint32_t	flt_region_bootload;
 		uint32_t	flt_region_img_status_pri;
 		uint32_t	flt_region_img_status_sec;
+		uint32_t	flt_region_aux_img_status_pri;
+		uint32_t	flt_region_aux_img_status_sec;
+	};
 	uint8_t         active_image;
 
 	/* Needed for BEACON */
@@ -4252,9 +4261,20 @@ struct qla_hw_data {
 
 	atomic_t zio_threshold;
 	uint16_t last_zio_threshold;
+
 #define DEFAULT_ZIO_THRESHOLD 5
 };
 
+struct active_regions {
+	uint8_t global;
+	struct {
+		uint8_t board_config;
+		uint8_t vpd_nvram;
+		uint8_t npiv_config_0_1;
+		uint8_t npiv_config_2_3;
+	} aux;
+};
+
 #define FW_ABILITY_MAX_SPEED_MASK	0xFUL
 #define FW_ABILITY_MAX_SPEED_16G	0x0
 #define FW_ABILITY_MAX_SPEED_32G	0x1
@@ -4469,13 +4489,20 @@ typedef struct scsi_qla_host {
 struct qla27xx_image_status {
 	uint8_t image_status_mask;
 	uint16_t generation;
-	uint8_t reserved[3];
-	uint8_t ver_minor;
 	uint8_t ver_major;
+	uint8_t ver_minor;
+	uint8_t bitmap;		/* 28xx only */
+	uint8_t reserved[2];
 	uint32_t checksum;
 	uint32_t signature;
 } __packed;
 
+/* 28xx aux image status bimap values */
+#define QLA28XX_AUX_IMG_BOARD_CONFIG		BIT_0
+#define QLA28XX_AUX_IMG_VPD_NVRAM		BIT_1
+#define QLA28XX_AUX_IMG_NPIV_CONFIG_0_1		BIT_2
+#define QLA28XX_AUX_IMG_NPIV_CONFIG_2_3		BIT_3
+
 #define SET_VP_IDX	1
 #define SET_AL_PA	2
 #define RESET_VP_IDX	3

drivers/scsi/qla2xxx/qla_fw.h

@@ -1515,6 +1515,18 @@ struct qla_flt_header {
 #define FLT_REG_VPD_SEC_27XX_2	0xD8
 #define FLT_REG_VPD_SEC_27XX_3	0xDA
 
+/* 28xx */
+#define FLT_REG_AUX_IMG_PRI_28XX	0x125
+#define FLT_REG_AUX_IMG_SEC_28XX	0x126
+#define FLT_REG_VPD_SEC_28XX_0		0x10C
+#define FLT_REG_VPD_SEC_28XX_1		0x10E
+#define FLT_REG_VPD_SEC_28XX_2		0x110
+#define FLT_REG_VPD_SEC_28XX_3		0x112
+#define FLT_REG_NVRAM_SEC_28XX_0	0x10D
+#define FLT_REG_NVRAM_SEC_28XX_1	0x10F
+#define FLT_REG_NVRAM_SEC_28XX_2	0x111
+#define FLT_REG_NVRAM_SEC_28XX_3	0x113
+
 struct qla_flt_region {
 	uint16_t code;
 	uint8_t attribute;

drivers/scsi/qla2xxx/qla_gbl.h

@@ -93,7 +93,6 @@ extern int qla2xxx_mctp_dump(scsi_qla_host_t *);
 extern int
 qla2x00_alloc_outstanding_cmds(struct qla_hw_data *, struct req_que *);
 extern int qla2x00_init_rings(scsi_qla_host_t *);
-extern uint8_t qla27xx_find_valid_image(struct scsi_qla_host *);
 extern struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *,
 	int, int, bool);
 extern int qla2xxx_delete_qpair(struct scsi_qla_host *, struct qla_qpair *);
@@ -108,6 +107,11 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host *, fc_port_t *);
 int qla24xx_detect_sfp(scsi_qla_host_t *vha);
 int qla24xx_post_gpdb_work(struct scsi_qla_host *, fc_port_t *, u8);
 
+extern void qla28xx_get_aux_images(struct scsi_qla_host *,
+    struct active_regions *);
+extern void qla27xx_get_active_image(struct scsi_qla_host *,
+    struct active_regions *);
+
 void qla2x00_async_prlo_done(struct scsi_qla_host *, fc_port_t *,
     uint16_t *);
 extern int qla2x00_post_async_prlo_work(struct scsi_qla_host *, fc_port_t *,

drivers/scsi/qla2xxx/qla_sup.c

@@ -862,20 +862,58 @@ qla2xxx_get_flt_info(scsi_qla_host_t *vha, uint32_t flt_addr)
 			if (IS_QLA27XX(ha) && !IS_QLA28XX(ha))
 				ha->flt_region_boot_sec = start;
 			break;
+		case FLT_REG_AUX_IMG_PRI_28XX:
+			if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
+				ha->flt_region_aux_img_status_pri = start;
+			break;
+		case FLT_REG_AUX_IMG_SEC_28XX:
+			if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
+				ha->flt_region_aux_img_status_sec = start;
+			break;
+		case FLT_REG_NVRAM_SEC_28XX_0:
+			if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
+				if (ha->port_no == 0)
+					ha->flt_region_nvram_sec = start;
+			break;
+		case FLT_REG_NVRAM_SEC_28XX_1:
+			if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
+				if (ha->port_no == 1)
+					ha->flt_region_nvram_sec = start;
+			break;
+		case FLT_REG_NVRAM_SEC_28XX_2:
+			if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
+				if (ha->port_no == 2)
+					ha->flt_region_nvram_sec = start;
+			break;
+		case FLT_REG_NVRAM_SEC_28XX_3:
+			if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
+				if (ha->port_no == 3)
+					ha->flt_region_nvram_sec = start;
+			break;
 		case FLT_REG_VPD_SEC_27XX_0:
-			if (IS_QLA27XX(ha) && !IS_QLA28XX(ha))
+		case FLT_REG_VPD_SEC_28XX_0:
+			if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
+				ha->flt_region_vpd_nvram_sec = start;
+				if (ha->port_no == 0)
 					ha->flt_region_vpd_sec = start;
+			}
 			break;
 		case FLT_REG_VPD_SEC_27XX_1:
-			if (IS_QLA27XX(ha) && !IS_QLA28XX(ha))
+		case FLT_REG_VPD_SEC_28XX_1:
+			if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
+				if (ha->port_no == 1)
 					ha->flt_region_vpd_sec = start;
 			break;
 		case FLT_REG_VPD_SEC_27XX_2:
-			if (IS_QLA27XX(ha) && !IS_QLA28XX(ha))
+		case FLT_REG_VPD_SEC_28XX_2:
+			if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
+				if (ha->port_no == 2)
 					ha->flt_region_vpd_sec = start;
 			break;
 		case FLT_REG_VPD_SEC_27XX_3:
-			if (IS_QLA27XX(ha) && !IS_QLA28XX(ha))
+		case FLT_REG_VPD_SEC_28XX_3:
+			if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
+				if (ha->port_no == 3)
 					ha->flt_region_vpd_sec = start;
 			break;
 		}
@@ -3020,6 +3058,7 @@ qla24xx_get_flash_version(scsi_qla_host_t *vha, void *mbuf)
 	int i;
 	struct qla_hw_data *ha = vha->hw;
 	uint32_t faddr = 0;
+	struct active_regions active_regions = { };
 
 	if (IS_P3P_TYPE(ha))
 		return ret;
@@ -3033,9 +3072,12 @@ qla24xx_get_flash_version(scsi_qla_host_t *vha, void *mbuf)
 	memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
 
 	pcihdr = ha->flt_region_boot << 2;
-	if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
-	    qla27xx_find_valid_image(vha) == QLA27XX_SECONDARY_IMAGE)
+	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
+		qla27xx_get_active_image(vha, &active_regions);
+		if (active_regions.global == QLA27XX_SECONDARY_IMAGE) {
 			pcihdr = ha->flt_region_boot_sec << 2;
+		}
+	}
 
 	do {
 		/* Verify PCI expansion ROM header. */
@@ -3108,9 +3150,10 @@ qla24xx_get_flash_version(scsi_qla_host_t *vha, void *mbuf)
 	/* Read firmware image information. */
 	memset(ha->fw_revision, 0, sizeof(ha->fw_revision));
 	faddr = ha->flt_region_fw;
-	if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
-	    qla27xx_find_valid_image(vha) == QLA27XX_SECONDARY_IMAGE)
+	if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
+		if (active_regions.global == QLA27XX_SECONDARY_IMAGE)
 			faddr = ha->flt_region_fw_sec;
+	}
 
 	qla24xx_read_flash_data(vha, dcode, faddr, 8);
 	if (qla24xx_risc_firmware_invalid(dcode)) {