jme: Cache align software TX/RX descriptor data

diff --git a/sys/dev/netif/jme/if_jme.c b/sys/dev/netif/jme/if_jme.c
index 55e7d3f..de5b476 100644 (file)
--- a/sys/dev/netif/jme/if_jme.c
+++ b/sys/dev/netif/jme/if_jme.c
@@ -1202,15 +1202,18 @@ jme_dma_alloc(struct jme_softc *sc)
        bus_dmamem_t dmem;
        int error, i, asize;
 
-       tdata->jme_txdesc =
-       kmalloc(tdata->jme_tx_desc_cnt * sizeof(struct jme_txdesc),
-               M_DEVBUF, M_WAITOK | M_ZERO);
+       asize = __VM_CACHELINE_ALIGN(
+           tdata->jme_tx_desc_cnt * sizeof(struct jme_txdesc));
+       tdata->jme_txdesc = kmalloc_cachealign(asize, M_DEVBUF,
+           M_WAITOK | M_ZERO);
+
        for (i = 0; i < sc->jme_cdata.jme_rx_ring_cnt; ++i) {
                struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[i];
 
-               rdata->jme_rxdesc =
-               kmalloc(rdata->jme_rx_desc_cnt * sizeof(struct jme_rxdesc),
-                       M_DEVBUF, M_WAITOK | M_ZERO);
+               asize = __VM_CACHELINE_ALIGN(
+                   rdata->jme_rx_desc_cnt * sizeof(struct jme_rxdesc));
+               rdata->jme_rxdesc = kmalloc_cachealign(asize, M_DEVBUF,
+                   M_WAITOK | M_ZERO);
        }
 
        /* Create parent ring tag. */