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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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15
drivers/scsi/libsas/sas_phy.c
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@ -67,13 +67,14 @@ static void sas_phye_oob_error(void *data)
switch (phy->error) {
case 1:
case 2:
i->dft->lldd_control_phy(phy, PHY_FUNC_HARD_RESET);
i->dft->lldd_control_phy(phy, PHY_FUNC_HARD_RESET,
NULL);
break;
case 3:
default:
phy->error = 0;
phy->enabled = 0;
i->dft->lldd_control_phy(phy, PHY_FUNC_DISABLE);
i->dft->lldd_control_phy(phy, PHY_FUNC_DISABLE, NULL);
break;
}
}
@ -90,7 +91,7 @@ static void sas_phye_spinup_hold(void *data)
&phy->phy_events_pending);
phy->error = 0;
i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD);
i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD, NULL);
}
/* ---------- Phy class registration ---------- */
@ -144,10 +145,10 @@ int sas_register_phys(struct sas_ha_struct *sas_ha)
phy->phy->identify.target_port_protocols = phy->tproto;
phy->phy->identify.sas_address = SAS_ADDR(sas_ha->sas_addr);
phy->phy->identify.phy_identifier = i;
phy->phy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
phy->phy->maximum_linkrate_hw = SAS_LINK_RATE_3_0_GBPS;
phy->phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
phy->phy->maximum_linkrate = SAS_LINK_RATE_3_0_GBPS;
phy->phy->minimum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
phy->phy->maximum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
phy->phy->minimum_linkrate = SAS_LINK_RATE_UNKNOWN;
phy->phy->maximum_linkrate = SAS_LINK_RATE_UNKNOWN;
phy->phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN;
sas_phy_add(phy->phy);