[SCSI] qla2xxx: Add ISP24xx flash-manipulation routines.

Add ISP24xx flash-manipulation routines.

Add read/write flash manipulation routines for the ISP24xx.
Update sysfs NVRAM objects to use generalized accessor
functions.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/qla2xxx/qla_attr.c

@@ -118,23 +118,15 @@ qla2x00_sysfs_read_nvram(struct kobject *kobj, char *buf, loff_t off,
 {
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
-	uint16_t	*witer;
 	unsigned long	flags;
-	uint16_t	cnt;
 
-	if (!capable(CAP_SYS_ADMIN) || off != 0 || count != sizeof(nvram_t))
+	if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size)
 		return 0;
 
 	/* Read NVRAM. */
 	spin_lock_irqsave(&ha->hardware_lock, flags);
-	qla2x00_lock_nvram_access(ha);
- 	witer = (uint16_t *)buf;
- 	for (cnt = 0; cnt < count / 2; cnt++) {
-		*witer = cpu_to_le16(qla2x00_get_nvram_word(ha,
-		    cnt+ha->nvram_base));
-		witer++;
- 	}
-	qla2x00_unlock_nvram_access(ha);
+	ha->isp_ops.read_nvram(ha, (uint8_t *)buf, ha->nvram_base,
+	    ha->nvram_size);
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
 	return (count);
@@ -146,34 +138,38 @@ qla2x00_sysfs_write_nvram(struct kobject *kobj, char *buf, loff_t off,
 {
 	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 	    struct device, kobj)));
-	uint8_t		*iter;
-	uint16_t	*witer;
 	unsigned long	flags;
 	uint16_t	cnt;
-	uint8_t		chksum;
 
-	if (!capable(CAP_SYS_ADMIN) || off != 0 || count != sizeof(nvram_t))
+	if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size)
 		return 0;
 
 	/* Checksum NVRAM. */
-	iter = (uint8_t *)buf;
-	chksum = 0;
-	for (cnt = 0; cnt < count - 1; cnt++)
-		chksum += *iter++;
-	chksum = ~chksum + 1;
-	*iter = chksum;
+	if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
+		uint32_t *iter;
+		uint32_t chksum;
+
+		iter = (uint32_t *)buf;
+		chksum = 0;
+		for (cnt = 0; cnt < ((count >> 2) - 1); cnt++)
+			chksum += le32_to_cpu(*iter++);
+		chksum = ~chksum + 1;
+		*iter = cpu_to_le32(chksum);
+	} else {
+		uint8_t *iter;
+		uint8_t chksum;
+
+		iter = (uint8_t *)buf;
+		chksum = 0;
+		for (cnt = 0; cnt < count - 1; cnt++)
+			chksum += *iter++;
+		chksum = ~chksum + 1;
+		*iter = chksum;
+	}
 
 	/* Write NVRAM. */
 	spin_lock_irqsave(&ha->hardware_lock, flags);
-	qla2x00_lock_nvram_access(ha);
-	qla2x00_release_nvram_protection(ha);
- 	witer = (uint16_t *)buf;
-	for (cnt = 0; cnt < count / 2; cnt++) {
-		qla2x00_write_nvram_word(ha, cnt+ha->nvram_base,
-		    cpu_to_le16(*witer));
-		witer++;
-	}
-	qla2x00_unlock_nvram_access(ha);
+	ha->isp_ops.write_nvram(ha, (uint8_t *)buf, ha->nvram_base, count);
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
 	return (count);
@@ -185,7 +181,7 @@ static struct bin_attribute sysfs_nvram_attr = {
 		.mode = S_IRUSR | S_IWUSR,
 		.owner = THIS_MODULE,
 	},
-	.size = sizeof(nvram_t),
+	.size = 0,
 	.read = qla2x00_sysfs_read_nvram,
 	.write = qla2x00_sysfs_write_nvram,
 };
@@ -196,6 +192,7 @@ qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha)
 	struct Scsi_Host *host = ha->host;
 
 	sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr);
+	sysfs_nvram_attr.size = ha->nvram_size;
 	sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr);
 }
 

drivers/scsi/qla2xxx/qla_gbl.h

@@ -220,6 +220,17 @@ extern void qla2x00_unlock_nvram_access(scsi_qla_host_t *);
 extern void qla2x00_release_nvram_protection(scsi_qla_host_t *);
 extern uint16_t qla2x00_get_nvram_word(scsi_qla_host_t *, uint32_t);
 extern void qla2x00_write_nvram_word(scsi_qla_host_t *, uint32_t, uint16_t);
+extern uint32_t *qla24xx_read_flash_data(scsi_qla_host_t *, uint32_t *,
+    uint32_t, uint32_t);
+extern uint8_t *qla2x00_read_nvram_data(scsi_qla_host_t *, uint8_t *, uint32_t,
+    uint32_t);
+extern uint8_t *qla24xx_read_nvram_data(scsi_qla_host_t *, uint8_t *, uint32_t,
+    uint32_t);
+extern int qla2x00_write_nvram_data(scsi_qla_host_t *, uint8_t *, uint32_t,
+    uint32_t);
+extern int qla24xx_write_nvram_data(scsi_qla_host_t *, uint8_t *, uint32_t,
+    uint32_t);
+
 /*
  * Global Function Prototypes in qla_dbg.c source file.
  */

drivers/scsi/qla2xxx/qla_os.c

@@ -1187,6 +1187,8 @@ int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
 	ha->isp_ops.calc_req_entries	= qla2x00_calc_iocbs_32;
 	ha->isp_ops.build_iocbs		= qla2x00_build_scsi_iocbs_32;
 	ha->isp_ops.prep_ms_iocb	= qla2x00_prep_ms_iocb;
+	ha->isp_ops.read_nvram		= qla2x00_read_nvram_data;
+	ha->isp_ops.write_nvram		= qla2x00_write_nvram_data;
 	ha->isp_ops.fw_dump		= qla2100_fw_dump;
 	ha->isp_ops.ascii_fw_dump	= qla2100_ascii_fw_dump;
 	if (IS_QLA2100(ha)) {