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Code Issues Releases Activity

Don't program the antonegotiation advertisement register in tl_setmode().

Browse Source 
I had a reason for doing this, but it violates the principle of least
astonishment. (At some point I may put this back but attach it to one of
the LINK flags so the behavior can be toggled on and off.)

Also replace my tl_calchash() with a much less disgusting and substantially
smaller one supplied by Bill Fenner.
This commit is contained in:
Bill Paul 1998-05-29 16:58:46 +00:00
parent cdd1d1d0fd
commit d8710fd422
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=36464
1 changed files with 19 additions and 33 deletions
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52
sys/pci/if_tl.c
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@ -29,7 +29,7 @@
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: if_tl.c,v 1.5 1998/05/24 00:56:49 wpaul Exp $
* $Id: if_tl.c,v 1.6 1998/05/26 23:42:24 wpaul Exp $
*/
/*
@ -240,7 +240,7 @@
#ifndef lint
static char rcsid[] =
"$Id: if_tl.c,v 1.5 1998/05/24 00:56:49 wpaul Exp $";
"$Id: if_tl.c,v 1.6 1998/05/26 23:42:24 wpaul Exp $";
#endif
/*
@ -331,7 +331,7 @@ static void tl_phy_writereg __P((struct tl_softc *, u_int16_t, u_int16_t));
static void tl_autoneg __P((struct tl_softc *, int, int));
static void tl_setmode __P((struct tl_softc *, int));
static int tl_calchash __P((char *));
static int tl_calchash __P((unsigned char *));
static void tl_setmulti __P((struct tl_softc *));
static void tl_softreset __P((struct tl_csr *, int));
static int tl_list_rx_init __P((struct tl_softc *));
@ -992,45 +992,31 @@ static void tl_setmode(sc, media)
}
tl_phy_writereg(sc, PHY_BMCR, bmcr);
#ifdef notyet
tl_phy_writereg(sc, PHY_ANAR, anar);
#endif
tl_phy_writereg(sc, TL_PHY_CTL, ctl);
return;
}
#define XOR(a, b) ((a && !b) || (!a && b))
#define DA(addr, offset) (addr[offset / 8] & (1 << (offset % 8)))
/*
* Calculate the hash of a MAC address for programming the multicast hash
* table. This hash is simply the address split into 6-bit chunks
* XOR'd, e.g.
* byte: 000000|00 1111|1111 22|222222|333333|33 4444|4444 55|555555
* bit: 765432|10 7654|3210 76|543210|765432|10 7654|3210 76|543210
* Bytes 0-2 and 3-5 are symmetrical, so are folded together. Then
* the folded 24-bit value is split into 6-bit portions and XOR'd.
*/
static int tl_calchash(addr)
char *addr;
unsigned char *addr;
{
int h;
int t;
h = XOR(DA(addr, 0), XOR(DA(addr, 6), XOR(DA(addr, 12),
XOR(DA(addr, 18), XOR(DA(addr, 24), XOR(DA(addr, 30),
XOR(DA(addr, 36), DA(addr, 42))))))));
h |= XOR(DA(addr, 1), XOR(DA(addr, 7), XOR(DA(addr, 13),
XOR(DA(addr, 19), XOR(DA(addr, 25), XOR(DA(addr, 31),
XOR(DA(addr, 37), DA(addr, 43)))))))) << 1;
h |= XOR(DA(addr, 2), XOR(DA(addr, 8), XOR(DA(addr, 14),
XOR(DA(addr, 20), XOR(DA(addr, 26), XOR(DA(addr, 32),
XOR(DA(addr, 38), DA(addr, 44)))))))) << 2;
h |= XOR(DA(addr, 3), XOR(DA(addr, 9), XOR(DA(addr, 15),
XOR(DA(addr, 21), XOR(DA(addr, 27), XOR(DA(addr, 33),
XOR(DA(addr, 39), DA(addr, 45)))))))) << 3;
h |= XOR(DA(addr, 4), XOR(DA(addr, 10), XOR(DA(addr, 16),
XOR(DA(addr, 22), XOR(DA(addr, 28), XOR(DA(addr, 34),
XOR(DA(addr, 40), DA(addr, 46)))))))) << 4;
h |= XOR(DA(addr, 5), XOR(DA(addr, 11), XOR(DA(addr, 17),
XOR(DA(addr, 23), XOR(DA(addr, 29), XOR(DA(addr, 35),
XOR(DA(addr, 41), DA(addr, 47)))))))) << 5;
return(h);
t = (addr[0] ^ addr[3]) << 16 | (addr[1] ^ addr[4]) << 8 |
(addr[2] ^ addr[5]);
return ((t >> 18) ^ (t >> 12) ^ (t >> 6) ^ t) & 0x3f;
}
static void tl_setmulti(sc)