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authorGuo-Fu Tseng <cooldavid@cooldavid.org>2008-10-09 06:48:58 +0400
committerDavid S. Miller <davem@davemloft.net>2008-10-09 06:51:31 +0400
commita821ebe580c535e3e8e354c6ab10516a0e95e202 (patch)
treeb47d39b17146c16b358f8e01e1dc7709564b4ee8 /drivers/net/jme.c
parent0ce2f03bade2046d6eb6184d52d065688382d7bd (diff)
downloadlinux-a821ebe580c535e3e8e354c6ab10516a0e95e202.tar.xz
jme: Added half-duplex mode and IPv6 RSS fix
1. Set bit 5 of GPREG1 to 1 to enable hardware workaround for half-duplex mode. Which the MAC processor generates CRS/COL by itself instead of receive it from PHY processor. 2. Set bit 6 of GPREG1 to 1 to enable hardware workaround that masks the MAC processor working right while calculating IPv6 RSS in 10/100 mode. 3. Group the workaround codes all together. Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/jme.c')
-rw-r--r--drivers/net/jme.c51
1 files changed, 33 insertions, 18 deletions
diff --git a/drivers/net/jme.c b/drivers/net/jme.c
index f292df557544..635f616fd974 100644
--- a/drivers/net/jme.c
+++ b/drivers/net/jme.c
@@ -190,7 +190,7 @@ jme_reset_mac_processor(struct jme_adapter *jme)
else
gpreg0 = GPREG0_DEFAULT;
jwrite32(jme, JME_GPREG0, gpreg0);
- jwrite32(jme, JME_GPREG1, 0);
+ jwrite32(jme, JME_GPREG1, GPREG1_DEFAULT);
}
static inline void
@@ -365,7 +365,7 @@ static int
jme_check_link(struct net_device *netdev, int testonly)
{
struct jme_adapter *jme = netdev_priv(netdev);
- u32 phylink, ghc, cnt = JME_SPDRSV_TIMEOUT, bmcr;
+ u32 phylink, ghc, cnt = JME_SPDRSV_TIMEOUT, bmcr, gpreg1;
char linkmsg[64];
int rc = 0;
@@ -437,37 +437,22 @@ jme_check_link(struct net_device *netdev, int testonly)
case PHY_LINK_SPEED_10M:
ghc |= GHC_SPEED_10M;
strcat(linkmsg, "10 Mbps, ");
- if (is_buggy250(jme->pdev->device, jme->chiprev))
- jme_set_phyfifoa(jme);
break;
case PHY_LINK_SPEED_100M:
ghc |= GHC_SPEED_100M;
strcat(linkmsg, "100 Mbps, ");
- if (is_buggy250(jme->pdev->device, jme->chiprev))
- jme_set_phyfifob(jme);
break;
case PHY_LINK_SPEED_1000M:
ghc |= GHC_SPEED_1000M;
strcat(linkmsg, "1000 Mbps, ");
- if (is_buggy250(jme->pdev->device, jme->chiprev))
- jme_set_phyfifoa(jme);
break;
default:
break;
}
- ghc |= (phylink & PHY_LINK_DUPLEX) ? GHC_DPX : 0;
-
- strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ?
- "Full-Duplex, " :
- "Half-Duplex, ");
-
- if (phylink & PHY_LINK_MDI_STAT)
- strcat(linkmsg, "MDI-X");
- else
- strcat(linkmsg, "MDI");
if (phylink & PHY_LINK_DUPLEX) {
jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT);
+ ghc |= GHC_DPX;
} else {
jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT |
TXMCS_BACKOFF |
@@ -478,6 +463,36 @@ jme_check_link(struct net_device *netdev, int testonly)
TXTRHD_TXREN |
((8 << TXTRHD_TXRL_SHIFT) & TXTRHD_TXRL));
}
+ strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ?
+ "Full-Duplex, " :
+ "Half-Duplex, ");
+
+ if (phylink & PHY_LINK_MDI_STAT)
+ strcat(linkmsg, "MDI-X");
+ else
+ strcat(linkmsg, "MDI");
+
+ gpreg1 = GPREG1_DEFAULT;
+ if (is_buggy250(jme->pdev->device, jme->chiprev)) {
+ if (!(phylink & PHY_LINK_DUPLEX))
+ gpreg1 |= GPREG1_HALFMODEPATCH;
+ switch (phylink & PHY_LINK_SPEED_MASK) {
+ case PHY_LINK_SPEED_10M:
+ jme_set_phyfifoa(jme);
+ gpreg1 |= GPREG1_RSSPATCH;
+ break;
+ case PHY_LINK_SPEED_100M:
+ jme_set_phyfifob(jme);
+ gpreg1 |= GPREG1_RSSPATCH;
+ break;
+ case PHY_LINK_SPEED_1000M:
+ jme_set_phyfifoa(jme);
+ break;
+ default:
+ break;
+ }
+ }
+ jwrite32(jme, JME_GPREG1, gpreg1);
jme->reg_ghc = ghc;
jwrite32(jme, JME_GHC, ghc);