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303694eeee
libsas power management routines to suspend and recover the sas domain
based on a model where the lldd is allowed and expected to be
"forgetful".
sas_suspend_ha - disable event processing allowing the lldd to take down
links without concern for causing hotplug events.
Regardless of whether the lldd actually posts link down
messages libsas notifies the lldd that all
domain_devices are gone.
sas_prep_resume_ha - on the way back up before the lldd starts link
training clean out any spurious events that were
generated on the way down, and re-enable event
processing
sas_resume_ha - after the lldd has started and decided that all phys
have posted link-up events this routine is called to let
libsas start it's own timeout of any phys that did not
resume. After the timeout an lldd can cancel the
phy teardown by posting a link-up event.
Storage for ex_change_count (u16) and phy_change_count (u8) are changed
to int so they can be set to -1 to indicate 'invalidated'.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Jacek Danecki <jacek.danecki@intel.com>
Tested-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/*
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* Serial Attached SCSI (SAS) Dump/Debugging routines
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*
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* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
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* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
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*
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* This file is licensed under GPLv2.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "sas_dump.h"
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static const char *sas_hae_str[] = {
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[0] = "HAE_RESET",
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};
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static const char *sas_porte_str[] = {
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[0] = "PORTE_BYTES_DMAED",
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[1] = "PORTE_BROADCAST_RCVD",
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[2] = "PORTE_LINK_RESET_ERR",
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[3] = "PORTE_TIMER_EVENT",
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[4] = "PORTE_HARD_RESET",
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};
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static const char *sas_phye_str[] = {
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[0] = "PHYE_LOSS_OF_SIGNAL",
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[1] = "PHYE_OOB_DONE",
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[2] = "PHYE_OOB_ERROR",
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[3] = "PHYE_SPINUP_HOLD",
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[4] = "PHYE_RESUME_TIMEOUT",
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};
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void sas_dprint_porte(int phyid, enum port_event pe)
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{
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SAS_DPRINTK("phy%d: port event: %s\n", phyid, sas_porte_str[pe]);
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}
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void sas_dprint_phye(int phyid, enum phy_event pe)
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{
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SAS_DPRINTK("phy%d: phy event: %s\n", phyid, sas_phye_str[pe]);
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}
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void sas_dprint_hae(struct sas_ha_struct *sas_ha, enum ha_event he)
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{
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SAS_DPRINTK("ha %s: %s event\n", dev_name(sas_ha->dev),
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sas_hae_str[he]);
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}
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void sas_dump_port(struct asd_sas_port *port)
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{
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SAS_DPRINTK("port%d: class:0x%x\n", port->id, port->class);
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SAS_DPRINTK("port%d: sas_addr:%llx\n", port->id,
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SAS_ADDR(port->sas_addr));
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SAS_DPRINTK("port%d: attached_sas_addr:%llx\n", port->id,
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SAS_ADDR(port->attached_sas_addr));
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SAS_DPRINTK("port%d: iproto:0x%x\n", port->id, port->iproto);
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SAS_DPRINTK("port%d: tproto:0x%x\n", port->id, port->tproto);
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SAS_DPRINTK("port%d: oob_mode:0x%x\n", port->id, port->oob_mode);
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SAS_DPRINTK("port%d: num_phys:%d\n", port->id, port->num_phys);
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}
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