svn commit: r366457 - stable/12/sys/dev/cxgbe

[Navdeep Parhar]

Author: np
Date: Mon Oct  5 18:47:12 2020
New Revision: 366457
URL: https://svnweb.freebsd.org/changeset/base/366457

Log:
  MFC r366244:
  
  cxgbe(4): display an error message when netmap cannot be enabled because
  the interface is down.
  
  Sponsored by:	Chelsio Communications

Modified:
  stable/12/sys/dev/cxgbe/t4_netmap.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/dev/cxgbe/t4_netmap.c
==============================================================================
--- stable/12/sys/dev/cxgbe/t4_netmap.c	Mon Oct  5 18:46:14 2020	(r366456)
+++ stable/12/sys/dev/cxgbe/t4_netmap.c	Mon Oct  5 18:47:12 2020	(r366457)
@@ -536,8 +536,11 @@ cxgbe_netmap_on(struct adapter *sc, struct vi_info *vi
 	MPASS(vi->nnmtxq > 0);
 
 	if ((vi->flags & VI_INIT_DONE) == 0 ||
-	    (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
+	    (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
+		if_printf(ifp, "cannot enable netmap operation because "
+		    "interface is not UP.\n");
 		return (EAGAIN);
+	}
 
 	rxb = &sc->sge.rx_buf_info[0];
 	for (i = 0; i < SW_ZONE_SIZES; i++, rxb++) {