Hi, Michael. We have some IBM blades with a BCM5708-based dual-port
NIC that the bnx2 driver reports as not supporting wake-on-LAN.
(Ethtool says "Supports Wake-on: d".) However, IBM says that WoL is
supported by these NICs, and in fact when I tried putting the blade
into soft-off and sending a magic packet to it, it did wake up! I
tried both ports, and they both worked.
Some more details: The driver identifies the NIC as follows:
Broadcom NetXtreme II BCM5708 1000Base-SX (B2) PCI-X 64-bit 133MHz found at mem
da000000, IRQ 153, node addr 00145 ed6f8ea
Here's the full ethtool output:
Supported ports: [ FIBRE ]
Supported link modes: 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: FIBRE
PHYAD: 2
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: d
Wake-on: d
Cannot get message level: Function not implemented
Link detected: yes
I added a printk to get the full contents of the chip_id register; it's
0x57081021. So the driver is deciding that the NIC doesn't support WoL
because the SERDES bit is set in the CHIP_BOND_ID. (It's not the later
CHIP_ID test since this NIC is a 5708_B2.)
/* Disable WOL support if we are running on a SERDES chip. */
if (CHIP_BOND_ID(bp) & CHIP_BOND_ID_SERDES_BIT) {
bp->phy_flags |= PHY_SERDES_FLAG;
bp->flags |= NO_WOL_FLAG;
if (CHIP_NUM(bp) == CHIP_NUM_5708) {
bp->phy_addr = 2;
reg = REG_RD_IND(bp, bp->shmem_base +
BNX2_SHARED_HW_CFG_CONFIG);
if (reg & BNX2_SHARED_HW_CFG_PHY_2_5G)
bp->phy_flags |= PHY_2_5G_CAPABLE_FLAG;
}
}
if ((CHIP_ID(bp) == CHIP_ID_5708_A0) ||
(CHIP_ID(bp) == CHIP_ID_5708_B0) ||
(CHIP_ID(bp) == CHIP_ID_5708_B1))
bp->flags |= NO_WOL_FLAG;
It would be easy to "fix" this by commenting out the line that sets the
NO_WOL_FLAG if the SERDES bit is set, but I assume the line is there
for a reason -- I imagine there are *some* NICs that don't support WoL
if the SERDES bit is set (?).
Can you find out what the right fix is? (Or do we need to ask IBM?)
It's important to me because my software is conservative and does not
put a machine to sleep if ethtool says that the machine doesn't have a
NIC that supports WoL.
Thanks,
--
Tim Mann work: [EMAIL PROTECTED] home: [EMAIL PROTECTED]
http://www.vmware.com http://tim-mann.org
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
