Author: nwhitehorn
Date: Sun Oct 20 01:40:59 2013
New Revision: 256779
URL: http://svnweb.freebsd.org/changeset/base/256779
Log:
Clean up some debug code that snuck in. Add a block comment on future work.
Modified:
head/sys/powerpc/pseries/phyp_llan.c
Modified: head/sys/powerpc/pseries/phyp_llan.c
==============================================================================
--- head/sys/powerpc/pseries/phyp_llan.c Sun Oct 20 01:31:09 2013
(r256778)
+++ head/sys/powerpc/pseries/phyp_llan.c Sun Oct 20 01:40:59 2013
(r256779)
@@ -381,15 +381,14 @@ llan_send_packet(void *xsc, bus_dma_segm
bufdescs[i] |= segs[i].ds_addr;
}
- error = phyp_hcall(H_SEND_LOGICAL_LAN, sc->unit, bufdescs[0],
+ phyp_hcall(H_SEND_LOGICAL_LAN, sc->unit, bufdescs[0],
bufdescs[1], bufdescs[2], bufdescs[3], bufdescs[4], bufdescs[5], 0);
-#if 0
- if (error)
- sc->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
-
- /* XXX: handle H_BUSY? */
- /* H_SEND_LOGICAL_LAN returning 0 implies completion of the send op */
-#endif
+ /*
+ * The hypercall returning implies completion -- or that the call will
+ * not complete. In principle, we should try a few times if we get back
+ * H_BUSY based on the continuation token in R4. For now, just drop
+ * the packet in such cases.
+ */
}
static void
@@ -425,9 +424,9 @@ llan_start_locked(struct ifnet *ifp)
}
}
- bus_dmamap_load_mbuf(sc->tx_dma_tag, sc->tx_dma_map,
//xfer->dmamap,
+ bus_dmamap_load_mbuf(sc->tx_dma_tag, sc->tx_dma_map,
mb_head, llan_send_packet, sc, 0);
- bus_dmamap_unload(sc->tx_dma_tag, sc->tx_dma_map); // XXX
+ bus_dmamap_unload(sc->tx_dma_tag, sc->tx_dma_map);
m_freem(mb_head);
}
}
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