[patch 15/60] forcedeth boot delay fix

From: Greg KH
Date: Thu Dec 13 2007 - 02:02:14 EST


2.6.23-stable review patch. If anyone has any objections, please let us
know.

------------------
From: Ayaz Abdulla <aabdulla@xxxxxxxxxx>

patch 9e555930bd873d238f5f7b9d76d3bf31e6e3ce93 in mainline.

Fix a long boot delay in the forcedeth driver. During initialization, the
timeout for the handshake between mgmt unit and driver can be very long.
The patch reduces the timeout by eliminating a extra loop around the
timeout logic.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=9308

Signed-off-by: Ayaz Abdulla <aabdulla@xxxxxxxxxx>
Cc: Alex Howells <astinus@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jeff Garzik <jeff@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
drivers/net/forcedeth.c | 22 +++++++++-------------
1 file changed, 9 insertions(+), 13 deletions(-)

--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -5280,19 +5280,15 @@ static int __devinit nv_probe(struct pci
if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) {
np->mac_in_use = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST;
dprintk(KERN_INFO "%s: mgmt unit is running. mac in use %x.\n", pci_name(pci_dev), np->mac_in_use);
- for (i = 0; i < 5000; i++) {
- msleep(1);
- if (nv_mgmt_acquire_sema(dev)) {
- /* management unit setup the phy already? */
- if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) ==
- NVREG_XMITCTL_SYNC_PHY_INIT) {
- /* phy is inited by mgmt unit */
- phyinitialized = 1;
- dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", pci_name(pci_dev));
- } else {
- /* we need to init the phy */
- }
- break;
+ if (nv_mgmt_acquire_sema(dev)) {
+ /* management unit setup the phy already? */
+ if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) ==
+ NVREG_XMITCTL_SYNC_PHY_INIT) {
+ /* phy is inited by mgmt unit */
+ phyinitialized = 1;
+ dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", pci_name(pci_dev));
+ } else {
+ /* we need to init the phy */
}
}
}

--
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/