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[SCSI] qla4xxx: Recreate chap data list during get chap operation 

Recreate the chap data list during the get chap operation in
qla4xxx_get_chap_list().

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Adheer Chandravanshi 2013-11-22 05:28:23 -05:00 committed by James Bottomley
parent fb734ee3ef
commit ea507a2530
1 changed files with 61 additions and 58 deletions
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119
drivers/scsi/qla4xxx/ql4_os.c
View File

@ -573,6 +573,65 @@ static umode_t qla4_attr_is_visible(int param_type, int param)
return 0;
}
/**
* qla4xxx_create chap_list - Create CHAP list from FLASH
* @ha: pointer to adapter structure
*
* Read flash and make a list of CHAP entries, during login when a CHAP entry
* is received, it will be checked in this list. If entry exist then the CHAP
* entry index is set in the DDB. If CHAP entry does not exist in this list
* then a new entry is added in FLASH in CHAP table and the index obtained is
* used in the DDB.
**/
static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
{
int rval = 0;
uint8_t *chap_flash_data = NULL;
uint32_t offset;
dma_addr_t chap_dma;
uint32_t chap_size = 0;
if (is_qla40XX(ha))
chap_size = MAX_CHAP_ENTRIES_40XX *
sizeof(struct ql4_chap_table);
else /* Single region contains CHAP info for both
* ports which is divided into half for each port.
*/
chap_size = ha->hw.flt_chap_size / 2;
chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
&chap_dma, GFP_KERNEL);
if (!chap_flash_data) {
ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
return;
}
if (is_qla40XX(ha)) {
offset = FLASH_CHAP_OFFSET;
} else {
offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
if (ha->port_num == 1)
offset += chap_size;
}
rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
if (rval != QLA_SUCCESS)
goto exit_chap_list;
if (ha->chap_list == NULL)
ha->chap_list = vmalloc(chap_size);
if (ha->chap_list == NULL) {
ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
goto exit_chap_list;
}
memset(ha->chap_list, 0, chap_size);
memcpy(ha->chap_list, chap_flash_data, chap_size);
exit_chap_list:
dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma);
}
static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
int16_t chap_index,
struct ql4_chap_table **chap_entry)
@ -686,6 +745,8 @@ static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
goto exit_get_chap_list;
}
qla4xxx_create_chap_list(ha);
chap_rec = (struct iscsi_chap_rec *) buf;
mutex_lock(&ha->chap_sem);
for (i = chap_tbl_idx; i < max_chap_entries; i++) {
@ -6124,64 +6185,6 @@ static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
}
/**
* qla4xxx_create chap_list - Create CHAP list from FLASH
* @ha: pointer to adapter structure
*
* Read flash and make a list of CHAP entries, during login when a CHAP entry
* is received, it will be checked in this list. If entry exist then the CHAP
* entry index is set in the DDB. If CHAP entry does not exist in this list
* then a new entry is added in FLASH in CHAP table and the index obtained is
* used in the DDB.
**/
static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
{
int rval = 0;
uint8_t *chap_flash_data = NULL;
uint32_t offset;
dma_addr_t chap_dma;
uint32_t chap_size = 0;
if (is_qla40XX(ha))
chap_size = MAX_CHAP_ENTRIES_40XX *
sizeof(struct ql4_chap_table);
else /* Single region contains CHAP info for both
* ports which is divided into half for each port.
*/
chap_size = ha->hw.flt_chap_size / 2;
chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size,
&chap_dma, GFP_KERNEL);
if (!chap_flash_data) {
ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n");
return;
}
if (is_qla40XX(ha))
offset = FLASH_CHAP_OFFSET;
else {
offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
if (ha->port_num == 1)
offset += chap_size;
}
rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
if (rval != QLA_SUCCESS)
goto exit_chap_list;
if (ha->chap_list == NULL)
ha->chap_list = vmalloc(chap_size);
if (ha->chap_list == NULL) {
ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n");
goto exit_chap_list;
}
memcpy(ha->chap_list, chap_flash_data, chap_size);
exit_chap_list:
dma_free_coherent(&ha->pdev->dev, chap_size,
chap_flash_data, chap_dma);
}
static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
struct ql4_tuple_ddb *tddb)
{