octeontx2-af: Send Link events one by one

Send link events one after another otherwise new message
is overwriting the message which is being processed by PF.

Fixes: a88e0f9 ("octeontx2: Detect the mbox up or down message via register")
Signed-off-by: Subbaraya Sundeep <[email protected]>
Reviewed-by: Michal Swiatkowski <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Paolo Abeni <[email protected]>

Author: Subbaraya Sundeep

drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c

@@ -143,6 +143,8 @@ static int mcs_notify_pfvf(struct mcs_intr_event *event, struct rvu *rvu)
 
 	otx2_mbox_msg_send_up(&rvu->afpf_wq_info.mbox_up, pf);
 
+	otx2_mbox_wait_for_rsp(&rvu->afpf_wq_info.mbox_up, pf);
+
 	mutex_unlock(&rvu->mbox_lock);
 
 	return 0;

drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c

@@ -272,6 +272,8 @@ static void cgx_notify_pfs(struct cgx_link_event *event, struct rvu *rvu)
 
 		otx2_mbox_msg_send_up(&rvu->afpf_wq_info.mbox_up, pfid);
 
+		otx2_mbox_wait_for_rsp(&rvu->afpf_wq_info.mbox_up, pfid);
+
 		mutex_unlock(&rvu->mbox_lock);
 	} while (pfmap);
 }

drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c

@@ -60,6 +60,8 @@ static int rvu_rep_up_notify(struct rvu *rvu, struct rep_event *event)
 
 	otx2_mbox_msg_send_up(&rvu->afpf_wq_info.mbox_up, pf);
 
+	otx2_mbox_wait_for_rsp(&rvu->afpf_wq_info.mbox_up, pf);
+
 	mutex_unlock(&rvu->mbox_lock);
 	return 0;
 }