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[SCSI] lpfc 8.1.12 : Round 2 of Miscellaneous fixes

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Round 2 of Miscellaneous fixes:
 - Ensure we don't prematurely re-enable IRQs in lpfc_sli_abort_fcp_cmpl().
 - Prevent freeing of iocb after IOCB_TIMEDOUT error.
 - Added code to cleanup REG_LOGIN mailbox command when a LOGO is received.
 - Fix offline window where more work can sneak in after clearing work_ha
 - Use target reset instead of LU reset in bus_device_reset_handler
 - Fixed system hangs due to leaked host_lock.
 - Fixed NULL pointer dereference during I/O with LIP.
 - Fixed false iocb timeout.
 - Fixed name server query response handling.
 - Change rport dev_loss_tmo value when user change lpfc HBA's dev_loss_tmo.
 - Fixed a memory leak in lpfc_sli_wake_mbox_wait.
 - Fixed check for dropped frames.
 - Removed hba queue depth calculation based on device PCI IDs
 - Change min cr_count value specified in comment to agree with setting

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
2007-04-25 09:52:34 -04:00
committed by James Bottomley
parent de0c5b32b5
commit 7054a606e6
9 changed files with 168 additions and 79 deletions
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90
drivers/scsi/lpfc/lpfc_scsi.c
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@@ -292,13 +292,13 @@ lpfc_scsi_unprep_dma_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb)
}
static void
lpfc_handle_fcp_err(struct lpfc_scsi_buf *lpfc_cmd)
lpfc_handle_fcp_err(struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_iocbq *rsp_iocb)
{
struct scsi_cmnd *cmnd = lpfc_cmd->pCmd;
struct fcp_cmnd *fcpcmd = lpfc_cmd->fcp_cmnd;
struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp;
struct lpfc_hba *phba = lpfc_cmd->scsi_hba;
uint32_t fcpi_parm = lpfc_cmd->cur_iocbq.iocb.un.fcpi.fcpi_parm;
uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm;
uint32_t resp_info = fcprsp->rspStatus2;
uint32_t scsi_status = fcprsp->rspStatus3;
uint32_t *lp;
@@ -359,6 +359,24 @@ lpfc_handle_fcp_err(struct lpfc_scsi_buf *lpfc_cmd)
be32_to_cpu(fcpcmd->fcpDl), cmnd->resid,
fcpi_parm, cmnd->cmnd[0], cmnd->underflow);
/*
* If there is an under run check if under run reported by
* storage array is same as the under run reported by HBA.
* If this is not same, there is a dropped frame.
*/
if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) &&
fcpi_parm &&
(cmnd->resid != fcpi_parm)) {
lpfc_printf_log(phba, KERN_WARNING,
LOG_FCP | LOG_FCP_ERROR,
"%d:0735 FCP Read Check Error and Underrun "
"Data: x%x x%x x%x x%x\n", phba->brd_no,
be32_to_cpu(fcpcmd->fcpDl),
cmnd->resid,
fcpi_parm, cmnd->cmnd[0]);
cmnd->resid = cmnd->request_bufflen;
host_status = DID_ERROR;
}
/*
* The cmnd->underflow is the minimum number of bytes that must
* be transfered for this command. Provided a sense condition
@@ -439,7 +457,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
switch (lpfc_cmd->status) {
case IOSTAT_FCP_RSP_ERROR:
/* Call FCP RSP handler to determine result */
lpfc_handle_fcp_err(lpfc_cmd);
lpfc_handle_fcp_err(lpfc_cmd,pIocbOut);
break;
case IOSTAT_NPORT_BSY:
case IOSTAT_FABRIC_BSY:
@@ -673,6 +691,18 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_hba *phba,
return (1);
}
static void
lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdiocbq,
struct lpfc_iocbq *rspiocbq)
{
struct lpfc_scsi_buf *lpfc_cmd =
(struct lpfc_scsi_buf *) cmdiocbq->context1;
if (lpfc_cmd)
lpfc_release_scsi_buf(phba, lpfc_cmd);
return;
}
static int
lpfc_scsi_tgt_reset(struct lpfc_scsi_buf * lpfc_cmd, struct lpfc_hba * phba,
unsigned tgt_id, unsigned int lun,
@@ -709,8 +739,9 @@ lpfc_scsi_tgt_reset(struct lpfc_scsi_buf * lpfc_cmd, struct lpfc_hba * phba,
&phba->sli.ring[phba->sli.fcp_ring],
iocbq, iocbqrsp, lpfc_cmd->timeout);
if (ret != IOCB_SUCCESS) {
if (ret == IOCB_TIMEDOUT)
iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl;
lpfc_cmd->status = IOSTAT_DRIVER_REJECT;
ret = FAILED;
} else {
ret = SUCCESS;
lpfc_cmd->result = iocbqrsp->iocb.un.ulpWord[4];
@@ -977,7 +1008,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
}
static int
lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
{
struct Scsi_Host *shost = cmnd->device->host;
struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
@@ -987,6 +1018,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
struct lpfc_nodelist *pnode = rdata->pnode;
uint32_t cmd_result = 0, cmd_status = 0;
int ret = FAILED;
int iocb_status = IOCB_SUCCESS;
int cnt, loopcnt;
lpfc_block_error_handler(cmnd);
@@ -998,7 +1030,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
*/
while ( 1 ) {
if (!pnode)
return FAILED;
goto out;
if (pnode->nlp_state != NLP_STE_MAPPED_NODE) {
spin_unlock_irq(phba->host->host_lock);
@@ -1016,7 +1048,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
}
pnode = rdata->pnode;
if (!pnode)
return FAILED;
goto out;
}
if (pnode->nlp_state == NLP_STE_MAPPED_NODE)
break;
@@ -1031,7 +1063,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
lpfc_cmd->rdata = rdata;
ret = lpfc_scsi_prep_task_mgmt_cmd(phba, lpfc_cmd, cmnd->device->lun,
FCP_LUN_RESET);
FCP_TARGET_RESET);
if (!ret)
goto out_free_scsi_buf;
@@ -1043,16 +1075,21 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
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,
"%d:0703 Issue target reset to TGT %d LUN %d rpi x%x "
"nlp_flag 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,
iocb_status = lpfc_sli_issue_iocb_wait(phba,
&phba->sli.ring[phba->sli.fcp_ring],
iocbq, iocbqrsp, lpfc_cmd->timeout);
if (ret == IOCB_SUCCESS)
ret = SUCCESS;
if (iocb_status == IOCB_TIMEDOUT)
iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl;
if (iocb_status == IOCB_SUCCESS)
ret = SUCCESS;
else
ret = iocb_status;
cmd_result = iocbqrsp->iocb.un.ulpWord[4];
cmd_status = iocbqrsp->iocb.ulpStatus;
@@ -1090,18 +1127,19 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
if (cnt) {
lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
"%d:0719 LUN Reset I/O flush failure: cnt x%x\n",
"%d:0719 device reset I/O flush failure: cnt x%x\n",
phba->brd_no, cnt);
ret = FAILED;
}
out_free_scsi_buf:
lpfc_release_scsi_buf(phba, lpfc_cmd);
if (iocb_status != IOCB_TIMEDOUT) {
lpfc_release_scsi_buf(phba, lpfc_cmd);
}
lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
"%d:0713 SCSI layer issued LUN reset (%d, %d) "
"Data: x%x x%x x%x\n",
phba->brd_no, cmnd->device->id,cmnd->device->lun,
"%d:0713 SCSI layer issued device reset (%d, %d) "
"return x%x status x%x result x%x\n",
phba->brd_no, cmnd->device->id, cmnd->device->lun,
ret, cmd_status, cmd_result);
out:
@@ -1110,7 +1148,7 @@ out:
}
static int
lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
lpfc_bus_reset_handler(struct scsi_cmnd *cmnd)
{
struct Scsi_Host *shost = cmnd->device->host;
struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
@@ -1155,13 +1193,17 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
"%d:0700 Bus Reset on target %d failed\n",
phba->brd_no, i);
err_count++;
break;
}
}
if (ret != IOCB_TIMEDOUT)
lpfc_release_scsi_buf(phba, lpfc_cmd);
if (err_count == 0)
ret = SUCCESS;
lpfc_release_scsi_buf(phba, lpfc_cmd);
else
ret = FAILED;
/*
* All outstanding txcmplq I/Os should have been aborted by
@@ -1302,8 +1344,8 @@ struct scsi_host_template lpfc_template = {
.info = lpfc_info,
.queuecommand = lpfc_queuecommand,
.eh_abort_handler = lpfc_abort_handler,
.eh_device_reset_handler= lpfc_reset_lun_handler,
.eh_bus_reset_handler = lpfc_reset_bus_handler,
.eh_device_reset_handler= lpfc_device_reset_handler,
.eh_bus_reset_handler = lpfc_bus_reset_handler,
.slave_alloc = lpfc_slave_alloc,
.slave_configure = lpfc_slave_configure,
.slave_destroy = lpfc_slave_destroy,