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niu: Add support for C10NEM

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This patch is for supporting C10NEM. C10NEM is a switch module, which
has back-to-back XAUI link connected to blades.

Signed-off-by: Tanli Chang <tanli.chang@sun.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tanli Chang 2009-05-26 20:45:50 -07:00 committed by David S. Miller
parent 8ca783ab78
commit 9c5cd67080
1 changed files with 47 additions and 10 deletions
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57
drivers/net/niu.c
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@ -1317,7 +1317,7 @@ static int bcm8704_reset(struct niu *np)
err = mdio_read(np, np->phy_addr,
BCM8704_PHYXS_DEV_ADDR, MII_BMCR);
if (err < 0)
if (err < 0 || err == 0xffff)
return err;
err |= BMCR_RESET;
err = mdio_write(np, np->phy_addr, BCM8704_PHYXS_DEV_ADDR,
@ -2042,7 +2042,7 @@ static int link_status_10g_bcm8706(struct niu *np, int *link_up_p)
err = mdio_read(np, np->phy_addr, BCM8704_PMA_PMD_DEV_ADDR,
BCM8704_PMD_RCV_SIGDET);
if (err < 0)
if (err < 0 || err == 0xffff)
goto out;
if (!(err & PMD_RCV_SIGDET_GLOBAL)) {
err = 0;
@ -2083,8 +2083,6 @@ static int link_status_10g_bcm8706(struct niu *np, int *link_up_p)
out:
*link_up_p = link_up;
if (np->flags & NIU_FLAGS_HOTPLUG_PHY)
err = 0;
return err;
}
@ -2220,10 +2218,17 @@ static int link_status_10g_hotplug(struct niu *np, int *link_up_p)
if (phy_present != phy_present_prev) {
/* state change */
if (phy_present) {
/* A NEM was just plugged in */
np->flags |= NIU_FLAGS_HOTPLUG_PHY_PRESENT;
if (np->phy_ops->xcvr_init)
err = np->phy_ops->xcvr_init(np);
if (err) {
err = mdio_read(np, np->phy_addr,
BCM8704_PHYXS_DEV_ADDR, MII_BMCR);
if (err == 0xffff) {
/* No mdio, back-to-back XAUI */
goto out;
}
/* debounce */
np->flags &= ~NIU_FLAGS_HOTPLUG_PHY_PRESENT;
}
@ -2234,13 +2239,21 @@ static int link_status_10g_hotplug(struct niu *np, int *link_up_p)
np->dev->name);
}
}
if (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT)
out:
if (np->flags & NIU_FLAGS_HOTPLUG_PHY_PRESENT) {
err = link_status_10g_bcm8706(np, link_up_p);
if (err == 0xffff) {
/* No mdio, back-to-back XAUI: it is C10NEM */
*link_up_p = 1;
np->link_config.active_speed = SPEED_10000;
np->link_config.active_duplex = DUPLEX_FULL;
}
}
}
spin_unlock_irqrestore(&np->lock, flags);
return err;
return 0;
}
static int niu_link_status(struct niu *np, int *link_up_p)
@ -2312,6 +2325,12 @@ static const struct niu_phy_ops phy_ops_10g_fiber_hotplug = {
.link_status = link_status_10g_hotplug,
};
static const struct niu_phy_ops phy_ops_niu_10g_hotplug = {
.serdes_init = serdes_init_niu_10g_fiber,
.xcvr_init = xcvr_init_10g_bcm8706,
.link_status = link_status_10g_hotplug,
};
static const struct niu_phy_ops phy_ops_10g_copper = {
.serdes_init = serdes_init_10g,
.link_status = link_status_10g, /* XXX */
@ -2358,6 +2377,11 @@ static const struct niu_phy_template phy_template_10g_fiber_hotplug = {
.phy_addr_base = 8,
};
static const struct niu_phy_template phy_template_niu_10g_hotplug = {
.ops = &phy_ops_niu_10g_hotplug,
.phy_addr_base = 8,
};
static const struct niu_phy_template phy_template_10g_copper = {
.ops = &phy_ops_10g_copper,
.phy_addr_base = 10,
@ -2542,8 +2566,16 @@ static int niu_determine_phy_disposition(struct niu *np)
case NIU_FLAGS_10G | NIU_FLAGS_FIBER:
/* 10G Fiber */
default:
tp = &phy_template_niu_10g_fiber;
phy_addr_off += np->port;
if (np->flags & NIU_FLAGS_HOTPLUG_PHY) {
tp = &phy_template_niu_10g_hotplug;
if (np->port == 0)
phy_addr_off = 8;
if (np->port == 1)
phy_addr_off = 12;
} else {
tp = &phy_template_niu_10g_fiber;
phy_addr_off += np->port;
}
break;
}
} else {
@ -2630,11 +2662,11 @@ static int niu_init_link(struct niu *np)
msleep(200);
}
err = niu_serdes_init(np);
if (err)
if (err && !(np->flags & NIU_FLAGS_HOTPLUG_PHY))
return err;
msleep(200);
err = niu_xcvr_init(np);
if (!err)
if (!err || (np->flags & NIU_FLAGS_HOTPLUG_PHY))
niu_link_status(np, &ignore);
return 0;
}
@ -9346,6 +9378,11 @@ static int __devinit niu_get_of_props(struct niu *np)
if (model)
strcpy(np->vpd.model, model);
if (of_find_property(dp, "hot-swappable-phy", &prop_len)) {
np->flags |= (NIU_FLAGS_10G | NIU_FLAGS_FIBER |
NIU_FLAGS_HOTPLUG_PHY);
}
return 0;
#else
return -EINVAL;