[ofa-general] [PATCH] mlx4_core - delay after reset

[Eli Cohen]

Put a 1000 msec delay after resetting the device before attempting to do
config cycles on it. Not doing this causes system hangs on some
chipsets, e.g. Intel Corporation E7520, when the driver is loaded.

Signed-off-by: Eli Cohen <eli at mellanox.co.il>

---

ofa_1_3_dev_kernel.orig/drivers/net/mlx4/reset.c	2007-08-13 16:25:31.000000000 +0300
+++ ofa_1_3_dev_kernel/drivers/net/mlx4/reset.c	2007-08-13 17:54:24.000000000 +0300
@@ -119,6 +119,7 @@
 	writel(MLX4_RESET_VALUE, reset + MLX4_RESET_OFFSET);
 	iounmap(reset);
 
+	msleep(1000);
 	end = jiffies + MLX4_RESET_TIMEOUT_JIFFIES;
 	do {
 		if (!pci_read_config_word(dev->pdev, PCI_VENDOR_ID, &vendor) &&