d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use new interface for ether_input().

Browse Source 
Remove some unnecessary assignments to mbuf fields in sis_newbuf(),
the "length" fields are of no use while the mbuf is in the receive ring.

MFC after: 3 days
This commit is contained in:
Luigi Rizzo 2002-08-07 16:08:54 +00:00
parent 4e17db5b58
commit ffe4fbf0fd
1 changed files with 4 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
sys/pci/if_sis.c
View File

@ -1253,16 +1253,13 @@ static int sis_newbuf(sc, c, m)
return(ENOBUFS);
} else
m->m_data = m->m_ext.ext_buf;
m->m_len = m->m_pkthdr.len = MCLBYTES;
m_adj(m, sizeof(u_int64_t));
c->sis_mbuf = m;
c->sis_ctl = SIS_RXLEN;
bus_dmamap_create(sc->sis_tag, 0, &c->sis_map);
bus_dmamap_load(sc->sis_tag, c->sis_map,
mtod(m, void *), m->m_len,
mtod(m, void *), MCLBYTES,
sis_dma_map_desc_ptr, c, 0);
bus_dmamap_sync(sc->sis_tag, c->sis_map, BUS_DMASYNC_PREWRITE);
@ -1276,7 +1273,6 @@ static int sis_newbuf(sc, c, m)
static void sis_rxeof(sc)
struct sis_softc *sc;
{
struct ether_header *eh;
struct mbuf *m;
struct ifnet *ifp;
struct sis_desc *cur_rx;
@ -1331,10 +1327,9 @@ static void sis_rxeof(sc)
* if the allocation fails, then use m_devget and leave the
* existing buffer in the receive ring.
*/
if (sis_newbuf(sc, cur_rx, NULL) == 0) {
m->m_pkthdr.rcvif = ifp;
if (sis_newbuf(sc, cur_rx, NULL) == 0)
m->m_pkthdr.len = m->m_len = total_len;
} else
else
#endif
{
struct mbuf *m0;
@ -1349,11 +1344,7 @@ static void sis_rxeof(sc)
}
ifp->if_ipackets++;
eh = mtod(m, struct ether_header *);
/* Remove header from mbuf and pass it on. */
m_adj(m, sizeof(struct ether_header));
ether_input(ifp, eh, m);
ether_input(ifp, NULL, m);
}
sc->sis_cdata.sis_rx_prod = i;