[SCSI] lpfc 8.3.41: Ensure driver properly zeros unused fields in SLI4 mailbox commands

Signed-off-by: NJames Smart <james.smart@emulex.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>

drivers/scsi/lpfc/lpfc_mbox.c

@@ -178,7 +178,8 @@ lpfc_dump_wakeup_param(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	mb->mbxOwner = OWN_HOST;
 	mb->un.varDmp.cv = 1;
 	mb->un.varDmp.type = DMP_NV_PARAMS;
-	mb->un.varDmp.entry_index = 0;
+	if (phba->sli_rev < LPFC_SLI_REV4)
+		mb->un.varDmp.entry_index = 0;
 	mb->un.varDmp.region_id = WAKE_UP_PARMS_REGION_ID;
 	mb->un.varDmp.word_cnt = WAKE_UP_PARMS_WORD_SIZE;
 	mb->un.varDmp.co = 0;
@@ -361,7 +362,7 @@ lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 	/* NEW_FEATURE
 	 * SLI-2, Coalescing Response Feature.
 	 */
-	if (phba->cfg_cr_delay) {
+	if (phba->cfg_cr_delay && (phba->sli_rev < LPFC_SLI_REV4)) {
 		mb->un.varCfgLnk.cr = 1;
 		mb->un.varCfgLnk.ci = 1;
 		mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay;
@@ -377,7 +378,7 @@ lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 	mb->un.varCfgLnk.crtov = phba->fc_crtov;
 	mb->un.varCfgLnk.citov = phba->fc_citov;
 
-	if (phba->cfg_ack0)
+	if (phba->cfg_ack0 && (phba->sli_rev < LPFC_SLI_REV4))
 		mb->un.varCfgLnk.ack0_enable = 1;
 
 	mb->mbxCommand = MBX_CONFIG_LINK;