Re: patch tulip-natsemi-dp83840a-phy-fix.patch added to -mm tree

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[email protected] wrote:
+
+					/* flush posted writes */
+					ioread32(ioaddr + CSR15);
+
+					/* Sect 3.10.3 in DP83840A.pdf (p39) */
+					udelay(500);
+
+					/* Section 4.2 in DP83840A.pdf (p43) */
+					/* and IEEE 802.3 "22.2.4.1.1 Reset" */
+					while (timeout-- &&
+						(tulip_mdio_read (dev, phy_num, MII_BMCR) & BMCR_RESET))
+						udelay(100);


Note that while the patch creates the correct behavior, the delays above occur inside spin_lock_irqsave() and/or timer context.

I have been to get HP to fix this patch's delay problem for -years-.

	Jeff


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