Release 4.16 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;
phy->in_shutdown = 0;
phy->error = 0;
sas_deform_port(phy, 1);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Bottomley | 25 | 51.02% | 1 | 20.00% |
| David Howells | 15 | 30.61% | 1 | 20.00% |
| Jason Yan | 6 | 12.24% | 1 | 20.00% |
| Dan J Williams | 3 | 6.12% | 2 | 40.00% |
| Total | 49 | 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;
phy->in_shutdown = 0;
phy->error = 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Bottomley | 20 | 47.62% | 1 | 25.00% |
| David Howells | 15 | 35.71% | 1 | 25.00% |
| Jason Yan | 6 | 14.29% | 1 | 25.00% |
| Dan J Williams | 1 | 2.38% | 1 | 25.00% |
| Total | 42 | 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);
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 | 133 | 88.08% | 2 | 40.00% |
| David Howells | 15 | 9.93% | 1 | 20.00% |
| Dan J Williams | 3 | 1.99% | 2 | 40.00% |
| Total | 151 | 100.00% | 5 | 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);
phy->error = 0;
i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD, NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Bottomley | 58 | 78.38% | 2 | 50.00% |
| David Howells | 15 | 20.27% | 1 | 25.00% |
| Dan J Williams | 1 | 1.35% | 1 | 25.00% |
| Total | 74 | 100.00% | 4 | 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;
/* 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 | 72 | 100.00% | 1 | 100.00% |
| Total | 72 | 100.00% | 1 | 100.00% |
static void sas_phye_shutdown(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);
if (phy->enabled) {
int ret;
phy->error = 0;
phy->enabled = 0;
ret = i->dft->lldd_control_phy(phy, PHY_FUNC_DISABLE, NULL);
if (ret)
sas_printk("lldd disable phy%02d returned %d\n",
phy->id, ret);
} else
sas_printk("phy%02d is not enabled, cannot shutdown\n",
phy->id);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jason Yan | 118 | 100.00% | 1 | 100.00% |
| Total | 118 | 100.00% | 1 | 100.00% |
/* ---------- Phy class registration ---------- */
int sas_register_phys(struct sas_ha_struct *sas_ha)
{
int i;
/* Now register the phys. */
for (i = 0; i < sas_ha->num_phys; i++) {
struct asd_sas_phy *phy = sas_ha->sas_phy[i];
phy->error = 0;
atomic_set(&phy->event_nr, 0);
INIT_LIST_HEAD(&phy->port_phy_el);
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 | 216 | 94.32% | 2 | 50.00% |
| Jason Yan | 10 | 4.37% | 1 | 25.00% |
| David Howells | 3 | 1.31% | 1 | 25.00% |
| Total | 229 | 100.00% | 4 | 100.00% |
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,
[PHYE_SHUTDOWN] = sas_phye_shutdown,
};
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| James Bottomley | 470 | 58.90% | 2 | 25.00% |
| Jason Yan | 185 | 23.18% | 2 | 25.00% |
| Dan J Williams | 80 | 10.03% | 3 | 37.50% |
| David Howells | 63 | 7.89% | 1 | 12.50% |
| Total | 798 | 100.00% | 8 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.