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authorAndrew Vasquez <andrew.vasquez@qlogic.com>2007-10-19 15:59:15 -0700
committerJames Bottomley <jejb@mulgrave.localdomain>2007-10-23 15:53:55 -0400
commit2c96d8d0c17978bbf5eb82314d488f46d4a51280 (patch)
tree7506cb5fb1f90adae103fd223574411d68f2a4fe /drivers/scsi/qla2xxx/qla_sup.c
parenta3a63d55a4eec418d845a91222ac53443f62717b (diff)
[SCSI] qla2xxx: Handle unaligned sector writes during NVRAM/VPD updates.
Since both NVRAM and VPD regions of the flash reside on unaligned sector boundaries, during update, the driver must perform a read-modify-write operation to the composite NVRAM/VPD region. This affects ISP25xx type boards only. Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_sup.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_sup.c23
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/scsi/qla2xxx/qla_sup.c b/drivers/scsi/qla2xxx/qla_sup.c
index 6670ad585f2..c24f3d9dea7 100644
--- a/drivers/scsi/qla2xxx/qla_sup.c
+++ b/drivers/scsi/qla2xxx/qla_sup.c
@@ -7,6 +7,7 @@
#include "qla_def.h"
#include <linux/delay.h>
+#include <linux/vmalloc.h>
#include <asm/uaccess.h>
static uint16_t qla2x00_nvram_request(scsi_qla_host_t *, uint32_t);
@@ -745,9 +746,11 @@ qla2x00_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
int ret, stat;
uint32_t i;
uint16_t *wptr;
+ unsigned long flags;
ret = QLA_SUCCESS;
+ spin_lock_irqsave(&ha->hardware_lock, flags);
qla2x00_lock_nvram_access(ha);
/* Disable NVRAM write-protection. */
@@ -764,6 +767,7 @@ qla2x00_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
qla2x00_set_nvram_protection(ha, stat);
qla2x00_unlock_nvram_access(ha);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
return ret;
}
@@ -776,9 +780,11 @@ qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
uint32_t i;
uint32_t *dwptr;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+ unsigned long flags;
ret = QLA_SUCCESS;
+ spin_lock_irqsave(&ha->hardware_lock, flags);
/* Enable flash write. */
WRT_REG_DWORD(&reg->ctrl_status,
RD_REG_DWORD(&reg->ctrl_status) | CSRX_FLASH_ENABLE);
@@ -812,6 +818,7 @@ qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
WRT_REG_DWORD(&reg->ctrl_status,
RD_REG_DWORD(&reg->ctrl_status) & ~CSRX_FLASH_ENABLE);
RD_REG_DWORD(&reg->ctrl_status); /* PCI Posting. */
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
return ret;
}
@@ -836,8 +843,20 @@ int
qla25xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr,
uint32_t bytes)
{
- return qla24xx_write_flash_data(ha, (uint32_t *)buf,
- FA_VPD_NVRAM_ADDR | naddr, bytes >> 2);
+#define RMW_BUFFER_SIZE (64 * 1024)
+ uint8_t *dbuf;
+
+ dbuf = vmalloc(RMW_BUFFER_SIZE);
+ if (!dbuf)
+ return QLA_MEMORY_ALLOC_FAILED;
+ ha->isp_ops->read_optrom(ha, dbuf, FA_VPD_NVRAM_ADDR << 2,
+ RMW_BUFFER_SIZE);
+ memcpy(dbuf + (naddr << 2), buf, bytes);
+ ha->isp_ops->write_optrom(ha, dbuf, FA_VPD_NVRAM_ADDR << 2,
+ RMW_BUFFER_SIZE);
+ vfree(dbuf);
+
+ return QLA_SUCCESS;
}
static inline void