| Date | Thu, 15 Jan 2009 12:00:31 -0800 | From | Greg KH <> | Subject | [patch 85/94] [SCSI] mvsas: increase port type detection delay to suit Seagates 10k6 drive ST3450856SS 0003 |
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2.6.28-stable review patch. If anyone has any objections, please let us know.
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From: Reinhard Nissl <rnissl@gmx.de>
commit ddccf307a3599e452804e228d8ed30fba578923e upstream.
I increased the delay step by step until loading of mvsas reliably detected the drive 200 times in sequence. A much better approach would be to monitor the hardware for some flag which indicates that port detection has finished, but I do not have any hardware documentation.
Signed-off-by: Reinhard Nissl <rnissl@gmx.de> Cc: Ke Wei <kewei@marvell.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/scsi/mvsas.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/scsi/mvsas.c +++ b/drivers/scsi/mvsas.c @@ -2959,7 +2959,7 @@ static int __devinit mvs_hw_init(struct /* enable auto port detection */ mw32(GBL_PORT_TYPE, MODE_AUTO_DET_EN); - msleep(100); + msleep(1100); /* init and reset phys */ for (i = 0; i < mvi->chip->n_phy; i++) { u32 lo = be32_to_cpu(*(u32 *)&mvi->sas_addr[4]);
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