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authorJames Smart <James.Smart@Emulex.Com>2007-10-29 11:00:39 -0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2007-11-03 13:09:29 -0400
commit7e2b19fbc7b9c1fd8ee9c79b375fcedb69dd07c9 (patch)
treef486935dccb252d906750869d6f6b3e814530137 /drivers/scsi/lpfc
parentc4e1608ef4b2ab4f6974fa351bb6c92e1de59aa7 (diff)
[SCSI] lpfc : Correct queue tag handling
This patch corrects the lpfc tag handling issue identified by Hannes Reinecke http://marc.info/?l=linux-scsi@m=119270235628850&w=2 The basis for this patch originated from Hajime Kai. Thank You Hajime. Signed-off-by: hajime-kai@soft.fujitsu.com Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/lpfc')
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index c0755565fae9..4e46045dea6d 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -682,6 +682,7 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
682 IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; 682 IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb;
683 struct lpfc_iocbq *piocbq = &(lpfc_cmd->cur_iocbq); 683 struct lpfc_iocbq *piocbq = &(lpfc_cmd->cur_iocbq);
684 int datadir = scsi_cmnd->sc_data_direction; 684 int datadir = scsi_cmnd->sc_data_direction;
685 char tag[2];
685 686
686 lpfc_cmd->fcp_rsp->rspSnsLen = 0; 687 lpfc_cmd->fcp_rsp->rspSnsLen = 0;
687 /* clear task management bits */ 688 /* clear task management bits */
@@ -692,8 +693,8 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
692 693
693 memcpy(&fcp_cmnd->fcpCdb[0], scsi_cmnd->cmnd, 16); 694 memcpy(&fcp_cmnd->fcpCdb[0], scsi_cmnd->cmnd, 16);
694 695
695 if (scsi_cmnd->device->tagged_supported) { 696 if (scsi_populate_tag_msg(scsi_cmnd, tag)) {
696 switch (scsi_cmnd->tag) { 697 switch (tag[0]) {
697 case HEAD_OF_QUEUE_TAG: 698 case HEAD_OF_QUEUE_TAG:
698 fcp_cmnd->fcpCntl1 = HEAD_OF_Q; 699 fcp_cmnd->fcpCntl1 = HEAD_OF_Q;
699 break; 700 break;