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[SCSI] aci94xx: implement link rate setting

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This patch implements the ability to set the minimum and maximum
linkrates for both libsas (for expanders) and aic94xx (for the host
phys).  It also tidies up the setting of the hardware min and max to
make sure they're updated when the expander emits a change broadcast.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Bottomley 2006-09-06 19:28:07 -05:00 • committed by James Bottomley
parent d24e1eeb3a
commit a01e70e570
8 changed files with 95 additions and 21 deletions
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1
include/scsi/sas.h
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@ -121,6 +121,7 @@ enum phy_func {
PHY_FUNC_CLEAR_AFFIL,
PHY_FUNC_TX_SATA_PS_SIGNAL,
PHY_FUNC_RELEASE_SPINUP_HOLD = 0x10, /* LOCAL PORT ONLY! */
PHY_FUNC_SET_LINK_RATE,
};
/* SAS LLDD would need to report only _very_few_ of those, like BROADCAST.