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[SCSI] lpfc 8.1.6 : Fix Data Corruption in Bus Reset Path 

This patch updates the lpfc driver to revision 8.1.6, which includes
the following changes:

 - Fix data corruption in SCSI BUS reset path, due to reusing
   the same request structure for each target.
 - Change version number to 8.1.6

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Smart 2006-05-01 21:50:40 -04:00 committed by James Bottomley
parent 6e1cad0276
commit 0b18ac42aa
2 changed files with 20 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

68
drivers/scsi/lpfc/lpfc_scsi.c
View File

@ -629,8 +629,7 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_hba *phba,
struct lpfc_iocbq *piocbq;
IOCB_t *piocb;
struct fcp_cmnd *fcp_cmnd;
struct scsi_device *scsi_dev = lpfc_cmd->pCmd->device;
struct lpfc_rport_data *rdata = scsi_dev->hostdata;
struct lpfc_rport_data *rdata = lpfc_cmd->rdata;
struct lpfc_nodelist *ndlp = rdata->pnode;
if ((ndlp == NULL) || (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
@ -665,56 +664,18 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_hba *phba,
piocb->ulpTimeout = lpfc_cmd->timeout;
}
lpfc_cmd->rdata = rdata;
switch (task_mgmt_cmd) {
case FCP_LUN_RESET:
/* Issue LUN Reset to TGT <num> LUN <num> */
lpfc_printf_log(phba,
KERN_INFO,
LOG_FCP,
"%d:0703 Issue LUN Reset to TGT %d LUN %d "
"Data: x%x x%x\n",
phba->brd_no,
scsi_dev->id, scsi_dev->lun,
ndlp->nlp_rpi, ndlp->nlp_flag);
break;
case FCP_ABORT_TASK_SET:
/* Issue Abort Task Set to TGT <num> LUN <num> */
lpfc_printf_log(phba,
KERN_INFO,
LOG_FCP,
"%d:0701 Issue Abort Task Set to TGT %d LUN %d "
"Data: x%x x%x\n",
phba->brd_no,
scsi_dev->id, scsi_dev->lun,
ndlp->nlp_rpi, ndlp->nlp_flag);
break;
case FCP_TARGET_RESET:
/* Issue Target Reset to TGT <num> */
lpfc_printf_log(phba,
KERN_INFO,
LOG_FCP,
"%d:0702 Issue Target Reset to TGT %d "
"Data: x%x x%x\n",
phba->brd_no,
scsi_dev->id, ndlp->nlp_rpi,
ndlp->nlp_flag);
break;
}
return (1);
}
static int
lpfc_scsi_tgt_reset(struct lpfc_scsi_buf * lpfc_cmd, struct lpfc_hba * phba)
lpfc_scsi_tgt_reset(struct lpfc_scsi_buf * lpfc_cmd, struct lpfc_hba * phba,
unsigned tgt_id, struct lpfc_rport_data *rdata)
{
struct lpfc_iocbq *iocbq;
struct lpfc_iocbq *iocbqrsp;
int ret;
lpfc_cmd->rdata = rdata;
ret = lpfc_scsi_prep_task_mgmt_cmd(phba, lpfc_cmd, FCP_TARGET_RESET);
if (!ret)
return FAILED;
@ -726,6 +687,13 @@ lpfc_scsi_tgt_reset(struct lpfc_scsi_buf * lpfc_cmd, struct lpfc_hba * phba)
if (!iocbqrsp)
return FAILED;
/* Issue Target Reset to TGT <num> */
lpfc_printf_log(phba, KERN_INFO, LOG_FCP,
"%d:0702 Issue Target Reset to TGT %d "
"Data: x%x x%x\n",
phba->brd_no, tgt_id, rdata->pnode->nlp_rpi,
rdata->pnode->nlp_flag);
ret = lpfc_sli_issue_iocb_wait(phba,
&phba->sli.ring[phba->sli.fcp_ring],
iocbq, iocbqrsp, lpfc_cmd->timeout);
@ -1021,6 +989,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
lpfc_cmd->pCmd = cmnd;
lpfc_cmd->timeout = 60;
lpfc_cmd->scsi_hba = phba;
lpfc_cmd->rdata = rdata;
ret = lpfc_scsi_prep_task_mgmt_cmd(phba, lpfc_cmd, FCP_LUN_RESET);
if (!ret)
@ -1033,6 +1002,11 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
if (iocbqrsp == NULL)
goto out_free_scsi_buf;
lpfc_printf_log(phba, KERN_INFO, LOG_FCP,
"%d:0703 Issue LUN Reset to TGT %d LUN %d "
"Data: x%x x%x\n", phba->brd_no, cmnd->device->id,
cmnd->device->lun, pnode->nlp_rpi, pnode->nlp_flag);
ret = lpfc_sli_issue_iocb_wait(phba,
&phba->sli.ring[phba->sli.fcp_ring],
iocbq, iocbqrsp, lpfc_cmd->timeout);
@ -1104,7 +1078,6 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
int match;
int ret = FAILED, i, err_count = 0;
int cnt, loopcnt;
unsigned int midlayer_id = 0;
struct lpfc_scsi_buf * lpfc_cmd;
lpfc_block_requests(phba);
@ -1124,7 +1097,6 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
* targets known to the driver. Should any target reset
* fail, this routine returns failure to the midlayer.
*/
midlayer_id = cmnd->device->id;
for (i = 0; i < MAX_FCP_TARGET; i++) {
/* Search the mapped list for this target ID */
match = 0;
@ -1137,9 +1109,8 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
if (!match)
continue;
lpfc_cmd->pCmd->device->id = i;
lpfc_cmd->pCmd->device->hostdata = ndlp->rport->dd_data;
ret = lpfc_scsi_tgt_reset(lpfc_cmd, phba);
ret = lpfc_scsi_tgt_reset(lpfc_cmd, phba,
i, ndlp->rport->dd_data);
if (ret != SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
"%d:0713 Bus Reset on target %d failed\n",
@ -1158,7 +1129,6 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
* the targets. Unfortunately, some targets do not abide by
* this forcing the driver to double check.
*/
cmnd->device->id = midlayer_id;
cnt = lpfc_sli_sum_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
0, 0, LPFC_CTX_HOST);
if (cnt)

2
drivers/scsi/lpfc/lpfc_version.h
View File

@ -18,7 +18,7 @@
* included with this package. *
*******************************************************************/
#define LPFC_DRIVER_VERSION "8.1.5"
#define LPFC_DRIVER_VERSION "8.1.6"
#define LPFC_DRIVER_NAME "lpfc"