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freebsd_amp_hwpstate
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Improve the if_eg driver a bit in style. It's still by far the worst driver 

we have :-/
This commit is contained in:
Poul-Henning Kamp 1995-04-12 07:50:44 +00:00
parent 230620627b
commit d32bd61e78
1 changed files with 3 additions and 53 deletions
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56
sys/i386/isa/if_eg.c
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@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id$
* $Id: if_eg.c,v 1.1 1995/04/08 09:39:34 phk Exp $
*/
/* To do:
@ -146,7 +146,6 @@ static void egrecv(struct eg_softc *);
static void egstart(struct ifnet *);
static void egreset(int);
static inline void egread __P((struct eg_softc *, caddr_t, int));
static struct mbuf *egget __P((caddr_t, int, struct ifnet *));
static void egstop __P((struct eg_softc *));
/*
@ -419,7 +418,6 @@ egattach (struct isa_device *id)
/* Now we can attach the interface. */
if_attach(ifp);
ether_ifattach(ifp);
/* device attach does transition from UNCONFIGURED to IDLE state */
sc->kdc.kdc_state = DC_IDLE;
@ -656,9 +654,9 @@ egread(sc, buf, len)
/* Pull packet off interface. */
ifp = &sc->sc_arpcom.ac_if;
m = egget(buf, len, ifp);
m = m_devget(buf,len,0,ifp,0);
if (m == 0) {
dprintf(("eg#: egget returned 0\n"));
dprintf(("eg#: m_devget returned 0\n"));
sc->sc_arpcom.ac_if.if_ierrors++;
return;
}
@ -697,54 +695,6 @@ egread(sc, buf, len)
ether_input(ifp, eh, m);
}
/*
* convert buf into mbufs
*/
static struct mbuf *
egget(buf, totlen, ifp)
caddr_t buf;
int totlen;
struct ifnet *ifp;
{
struct mbuf *top, **mp, *m;
int len;
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (m == 0) {
dprintf(("eg#: MGETHDR returns 0\n"));
return 0;
}
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = totlen;
len = MHLEN;
top = 0;
mp = ⊤
while (totlen > 0) {
if (top) {
MGET(m, M_DONTWAIT, MT_DATA);
if (m == 0) {
m_freem(top);
dprintf(("eg#: MGET returns 0\n"));
return 0;
}
len = MLEN;
}
if (totlen >= MINCLSIZE) {
MCLGET(m, M_DONTWAIT);
if (m->m_flags & M_EXT)
len = MCLBYTES;
}
m->m_len = len = min(totlen, len);
bcopy((caddr_t)buf, mtod(m, caddr_t), len);
buf += len;
totlen -= len;
*mp = m;
mp = &m->m_next;
}
return top;
}
static int
egioctl(ifp, command, data)