From: Adheer Chandravanshi <adheer.chandravanshi@xxxxxxxxxx>
Use correct flash ddb offset to add and delete flash target
entries for ISP40XX
Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@xxxxxxxxxx>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@xxxxxxxxxx>
---
drivers/scsi/qla4xxx/ql4_mbx.c | 7 ++++--
drivers/scsi/qla4xxx/ql4_os.c | 57 ++++++++++++++++++++++++++++--------------
2 files changed, 43 insertions(+), 21 deletions(-)
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 8985997..a501bea 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -1421,7 +1421,7 @@ int qla4xxx_flashdb_by_index(struct scsi_qla_host *ha,
struct dev_db_entry *fw_ddb_entry,
dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index)
{
- uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
+ uint32_t dev_db_start_offset;
uint32_t dev_db_end_offset;
int status = QLA_ERROR;
@@ -1429,6 +1429,7 @@ int qla4xxx_flashdb_by_index(struct scsi_qla_host *ha,
if (is_qla40XX(ha)) {
dev_db_start_offset = FLASH_OFFSET_DB_INFO;
+ dev_db_end_offset = FLASH_OFFSET_DB_END;
} else {
dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
(ha->hw.flt_region_ddb << 2);
@@ -1437,9 +1438,11 @@ int qla4xxx_flashdb_by_index(struct scsi_qla_host *ha,
*/
if (ha->port_num == 1)
dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
+
+ dev_db_end_offset = dev_db_start_offset +
+ (ha->hw.flt_ddb_size / 2);
}
- dev_db_end_offset = dev_db_start_offset + (ha->hw.flt_ddb_size / 2);
dev_db_start_offset += (ddb_index * sizeof(*fw_ddb_entry));
if (dev_db_start_offset > dev_db_end_offset) {
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 95a951c..5f7a2bc 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -6582,6 +6582,8 @@ static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
struct dev_db_entry *fw_ddb_entry = NULL;
dma_addr_t fw_ddb_entry_dma;
uint16_t *ddb_cookie = NULL;
+ size_t ddb_size;
+ void *pddb = NULL;
int target_id;
int rc = 0;
@@ -6601,18 +6603,12 @@ static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT)
goto sysfs_ddb_del;
- ddb_cookie = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_cookie),
- &fw_ddb_entry_dma, GFP_KERNEL);
- if (!ddb_cookie) {
- rc = -ENOMEM;
- DEBUG2(ql4_printk(KERN_ERR, ha,
- "%s: Unable to allocate dma buffer\n",
- __func__));
- goto exit_ddb_del;
- }
-
if (is_qla40XX(ha)) {
dev_db_start_offset = FLASH_OFFSET_DB_INFO;
+ dev_db_end_offset = FLASH_OFFSET_DB_END;
+ dev_db_start_offset += (fnode_sess->target_id *
+ sizeof(*fw_ddb_entry));
+ ddb_size = sizeof(*fw_ddb_entry);
} else {
dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
(ha->hw.flt_region_ddb << 2);
@@ -6621,12 +6617,17 @@ static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
*/
if (ha->port_num == 1)
dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
- }
- dev_db_end_offset = dev_db_start_offset + (ha->hw.flt_ddb_size / 2);
- dev_db_start_offset += (fnode_sess->target_id * sizeof(*fw_ddb_entry));
- dev_db_start_offset += (void *)&(fw_ddb_entry->cookie) -
- (void *)fw_ddb_entry;
+ dev_db_end_offset = dev_db_start_offset +
+ (ha->hw.flt_ddb_size / 2);
+
+ dev_db_start_offset += (fnode_sess->target_id *
+ sizeof(*fw_ddb_entry));
+ dev_db_start_offset += (void *)&(fw_ddb_entry->cookie) -
+ (void *)fw_ddb_entry;
+
+ ddb_size = sizeof(*ddb_cookie);
+ }
DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n",
__func__, dev_db_start_offset, dev_db_end_offset));
@@ -6638,10 +6639,28 @@ static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess)
goto exit_ddb_del;
}
+ pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size,
+ &fw_ddb_entry_dma, GFP_KERNEL);
+ if (!pddb) {
+ rc = -ENOMEM;
+ DEBUG2(ql4_printk(KERN_ERR, ha,
+ "%s: Unable to allocate dma buffer\n",
+ __func__));
+ goto exit_ddb_del;
+ }
+
+ if (is_qla40XX(ha)) {
+ fw_ddb_entry = pddb;
+ memset(fw_ddb_entry, 0, ddb_size);
+ ddb_cookie = &fw_ddb_entry->cookie;
+ } else {
+ ddb_cookie = pddb;
+ }
+
/* invalidate the cookie */
*ddb_cookie = 0xFFEE;
qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
- sizeof(*ddb_cookie), FLASH_OPT_RMW_COMMIT);
+ ddb_size, FLASH_OPT_RMW_COMMIT);
sysfs_ddb_del:
target_id = fnode_sess->target_id;
@@ -6650,9 +6669,9 @@ sysfs_ddb_del:
"%s: session and conn entries for flashnode %u of host %lu deleted\n",
__func__, target_id, ha->host_no);
exit_ddb_del:
- if (ddb_cookie)
- dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_cookie),
- ddb_cookie, fw_ddb_entry_dma);
+ if (pddb)
+ dma_free_coherent(&ha->pdev->dev, ddb_size, pddb,
+ fw_ddb_entry_dma);
return rc;
}
--
1.8.2.GIT
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