Release 4.11 drivers/scsi/libsas/sas_phy.c
/*
* Serial Attached SCSI (SAS) Phy class
*
* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
*
* This file is licensed under GPLv2.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "sas_internal.h"
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_sas.h>
#include "../scsi_sas_internal.h"
/* ---------- Phy events ---------- */
static void sas_phye_loss_of_signal(struct work_struct *work)
{
struct asd_sas_event *ev = to_asd_sas_event(work);
struct asd_sas_phy *phy = ev->phy;
clear_bit(PHYE_LOSS_OF_SIGNAL, &phy->phy_events_pending);
phy->error = 0;
sas_deform_port(phy, 1);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Bottomley | 34 | 64.15% | 1 | 20.00% |
| David Howells | 15 | 28.30% | 1 | 20.00% |
| Dan J Williams | 4 | 7.55% | 3 | 60.00% |
| Total | 53 | 100.00% | 5 | 100.00% |
static void sas_phye_oob_done(struct work_struct *work)
{
struct asd_sas_event *ev = to_asd_sas_event(work);
struct asd_sas_phy *phy = ev->phy;
clear_bit(PHYE_OOB_DONE, &phy->phy_events_pending);
phy->error = 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Bottomley | 29 | 63.04% | 1 | 25.00% |
| David Howells | 15 | 32.61% | 1 | 25.00% |
| Dan J Williams | 2 | 4.35% | 2 | 50.00% |
| Total | 46 | 100.00% | 4 | 100.00% |
static void sas_phye_oob_error(struct work_struct *work)
{
struct asd_sas_event *ev = to_asd_sas_event(work);
struct asd_sas_phy *phy = ev->phy;
struct sas_ha_struct *sas_ha = phy->ha;
struct asd_sas_port *port = phy->port;
struct sas_internal *i =
to_sas_internal(sas_ha->core.shost->transportt);
clear_bit(PHYE_OOB_ERROR, &phy->phy_events_pending);
sas_deform_port(phy, 1);
if (!port && phy->enabled && i->dft->lldd_control_phy) {
phy->error++;
switch (phy->error) {
case 1:
case 2:
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, NULL);
break;
}
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Bottomley | 142 | 88.20% | 2 | 33.33% |
| David Howells | 15 | 9.32% | 1 | 16.67% |
| Dan J Williams | 4 | 2.48% | 3 | 50.00% |
| Total | 161 | 100.00% | 6 | 100.00% |
static void sas_phye_spinup_hold(struct work_struct *work)
{
struct asd_sas_event *ev = to_asd_sas_event(work);
struct asd_sas_phy *phy = ev->phy;
struct sas_ha_struct *sas_ha = phy->ha;
struct sas_internal *i =
to_sas_internal(sas_ha->core.shost->transportt);
clear_bit(PHYE_SPINUP_HOLD, &phy->phy_events_pending);
phy->error = 0;
i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD, NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Bottomley | 67 | 79.76% | 2 | 40.00% |
| David Howells | 15 | 17.86% | 1 | 20.00% |
| Dan J Williams | 2 | 2.38% | 2 | 40.00% |
| Total | 84 | 100.00% | 5 | 100.00% |
static void sas_phye_resume_timeout(struct work_struct *work)
{
struct asd_sas_event *ev = to_asd_sas_event(work);
struct asd_sas_phy *phy = ev->phy;
clear_bit(PHYE_RESUME_TIMEOUT, &phy->phy_events_pending);
/* phew, lldd got the phy back in the nick of time */
if (!phy->suspended) {
dev_info(&phy->phy->dev, "resume timeout cancelled\n");
return;
}
phy->error = 0;
phy->suspended = 0;
sas_deform_port(phy, 1);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Dan J Williams | 82 | 100.00% | 1 | 100.00% |
| Total | 82 | 100.00% | 1 | 100.00% |
/* ---------- Phy class registration ---------- */
int sas_register_phys(struct sas_ha_struct *sas_ha)
{
int i;
static const work_func_t sas_phy_event_fns[PHY_NUM_EVENTS] = {
[PHYE_LOSS_OF_SIGNAL] = sas_phye_loss_of_signal,
[PHYE_OOB_DONE] = sas_phye_oob_done,
[PHYE_OOB_ERROR] = sas_phye_oob_error,
[PHYE_SPINUP_HOLD] = sas_phye_spinup_hold,
[PHYE_RESUME_TIMEOUT] = sas_phye_resume_timeout,
};
static const work_func_t sas_port_event_fns[PORT_NUM_EVENTS] = {
[PORTE_BYTES_DMAED] = sas_porte_bytes_dmaed,
[PORTE_BROADCAST_RCVD] = sas_porte_broadcast_rcvd,
[PORTE_LINK_RESET_ERR] = sas_porte_link_reset_err,
[PORTE_TIMER_EVENT] = sas_porte_timer_event,
[PORTE_HARD_RESET] = sas_porte_hard_reset,
};
/* Now register the phys. */
for (i = 0; i < sas_ha->num_phys; i++) {
int k;
struct asd_sas_phy *phy = sas_ha->sas_phy[i];
phy->error = 0;
INIT_LIST_HEAD(&phy->port_phy_el);
for (k = 0; k < PORT_NUM_EVENTS; k++) {
INIT_SAS_WORK(&phy->port_events[k].work, sas_port_event_fns[k]);
phy->port_events[k].phy = phy;
}
for (k = 0; k < PHY_NUM_EVENTS; k++) {
INIT_SAS_WORK(&phy->phy_events[k].work, sas_phy_event_fns[k]);
phy->phy_events[k].phy = phy;
}
phy->port = NULL;
phy->ha = sas_ha;
spin_lock_init(&phy->frame_rcvd_lock);
spin_lock_init(&phy->sas_prim_lock);
phy->frame_rcvd_size = 0;
phy->phy = sas_phy_alloc(&sas_ha->core.shost->shost_gendev, i);
if (!phy->phy)
return -ENOMEM;
phy->phy->identify.initiator_port_protocols =
phy->iproto;
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_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);
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Bottomley | 308 | 78.97% | 2 | 40.00% |
| David Howells | 73 | 18.72% | 1 | 20.00% |
| Dan J Williams | 9 | 2.31% | 2 | 40.00% |
| Total | 390 | 100.00% | 5 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Bottomley | 598 | 71.70% | 2 | 28.57% |
| David Howells | 133 | 15.95% | 1 | 14.29% |
| Dan J Williams | 103 | 12.35% | 4 | 57.14% |
| Total | 834 | 100.00% | 7 | 100.00% |
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