From 69f4a513911455670d3322fb5252b437c0485707 Mon Sep 17 00:00:00 2001 From: Ed Lin Date: Wed, 9 May 2007 20:50:37 -0800 Subject: [PATCH] [SCSI] stex: extend hard reset wait time During hard bus reset of st_shasta controllers, 1 ms is not enough for 16-port controllers, although it's good for 8-port controllers. Extend the wait time to 100 ms to allow bus resets finish successfully. Signed-off-by: Ed Lin Signed-off-by: James Bottomley --- drivers/scsi/stex.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index 96dcbac9545e..81dd3b740daf 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -1041,7 +1041,12 @@ static void stex_hard_reset(struct st_hba *hba) pci_read_config_byte(bus->self, PCI_BRIDGE_CONTROL, &pci_bctl); pci_bctl |= PCI_BRIDGE_CTL_BUS_RESET; pci_write_config_byte(bus->self, PCI_BRIDGE_CONTROL, pci_bctl); - msleep(1); + + /* + * 1 ms may be enough for 8-port controllers. But 16-port controllers + * require more time to finish bus reset. Use 100 ms here for safety + */ + msleep(100); pci_bctl &= ~PCI_BRIDGE_CTL_BUS_RESET; pci_write_config_byte(bus->self, PCI_BRIDGE_CONTROL, pci_bctl);