Thanks for your continued work on it. I will test the patch, as soon as I get
access to the hardware again (probably next week).
best regards
Guenther
-----Original Message-----
From: Stephen Hemminger [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 16, 2006 12:12 PM
To: Guenther Thomsen
Cc: John W. Linville; netdev@vger.kernel.org
Subject: Re: kernel panic (on DHCP discover?) in sky2 driver of
2.6.17-rc1
Could you try the 2.6.17-rc4 version with this patch. It turns out the board
seems to give out of order status responses.
Ignore the vendor sk98lin driver, when I try the stock version it spends it's
life resetting itself because it sets up PCI bus wrong. If I fix that, it spends
it's time getting confused because it can't handle intermixed status reports
properly (checksum et all is per port not per board).
drivers/net/sky2.c | 28 +++++++++++++++++++++-------
1 files changed, 21 insertions(+), 7 deletions(-)
792547bc5e8e4f7d5a1070a168056f429635c254
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index ffd267f..11e7914 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1020,8 +1020,27 @@ static int sky2_up(struct net_device *de
struct sky2_hw *hw = sky2->hw;
unsigned port = sky2->port;
u32 ramsize, rxspace, imask;
- int err = -ENOMEM;
+ int cap, err;
+ struct net_device *otherdev = hw->dev[sky2->port^1];
+ /*
+ * Reduce split transactions (and turn off) rx checksums to
+ * prevent problems with dual ports.
+ */
+ if (otherdev && netif_running(otherdev) &&
+ (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) {
+ struct sky2_port *osky2 = netdev_priv(otherdev);
+ u16 cmd;
+
+ cmd = sky2_pci_read16(hw, cap + PCI_X_CMD);
+ cmd &= ~PCI_X_CMD_MAX_SPLIT;
+ sky2_pci_write16(hw, cap + PCI_X_CMD, cmd);
+
+ sky2->rx_csum = 0;
+ osky2->rx_csum = 0;
+ }
+
+ err = -ENOMEM;
if (netif_msg_ifup(sky2))
printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);
@@ -3067,12 +3086,7 @@ static __devinit struct net_device *sky2
sky2->duplex = -1;
sky2->speed = -1;
sky2->advertising = sky2_supported_modes(hw);
-
- /* Receive checksum disabled for Yukon XL
- * because of observed problems with incorrect
- * values when multiple packets are received in one interrupt
- */
- sky2->rx_csum = (hw->chip_id != CHIP_ID_YUKON_XL);
+ sky2->rx_csum = 1;
spin_lock_init(&sky2->phy_lock);
sky2->tx_pending = TX_DEF_PENDING;
--
1.2.4
-
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