2 * Serial Attached SCSI (SAS) Phy class
4 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
5 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
7 * This file is licensed under GPLv2.
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of the
12 * License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "sas_internal.h"
26 #include <scsi/scsi_host.h>
27 #include <scsi/scsi_transport.h>
28 #include <scsi/scsi_transport_sas.h>
29 #include "../scsi_sas_internal.h"
31 /* ---------- Phy events ---------- */
33 static void sas_phye_loss_of_signal(struct work_struct *work)
35 struct asd_sas_event *ev =
36 container_of(work, struct asd_sas_event, work);
37 struct asd_sas_phy *phy = ev->phy;
39 clear_bit(PHYE_LOSS_OF_SIGNAL, &phy->phy_events_pending);
41 sas_deform_port(phy, 1);
44 static void sas_phye_oob_done(struct work_struct *work)
46 struct asd_sas_event *ev =
47 container_of(work, struct asd_sas_event, work);
48 struct asd_sas_phy *phy = ev->phy;
50 clear_bit(PHYE_OOB_DONE, &phy->phy_events_pending);
54 static void sas_phye_oob_error(struct work_struct *work)
56 struct asd_sas_event *ev =
57 container_of(work, struct asd_sas_event, work);
58 struct asd_sas_phy *phy = ev->phy;
59 struct sas_ha_struct *sas_ha = phy->ha;
60 struct asd_sas_port *port = phy->port;
61 struct sas_internal *i =
62 to_sas_internal(sas_ha->core.shost->transportt);
64 clear_bit(PHYE_OOB_ERROR, &phy->phy_events_pending);
66 sas_deform_port(phy, 1);
68 if (!port && phy->enabled && i->dft->lldd_control_phy) {
73 i->dft->lldd_control_phy(phy, PHY_FUNC_HARD_RESET,
80 i->dft->lldd_control_phy(phy, PHY_FUNC_DISABLE, NULL);
86 static void sas_phye_spinup_hold(struct work_struct *work)
88 struct asd_sas_event *ev =
89 container_of(work, struct asd_sas_event, work);
90 struct asd_sas_phy *phy = ev->phy;
91 struct sas_ha_struct *sas_ha = phy->ha;
92 struct sas_internal *i =
93 to_sas_internal(sas_ha->core.shost->transportt);
95 clear_bit(PHYE_SPINUP_HOLD, &phy->phy_events_pending);
98 i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD, NULL);
101 /* ---------- Phy class registration ---------- */
103 int sas_register_phys(struct sas_ha_struct *sas_ha)
107 static const work_func_t sas_phy_event_fns[PHY_NUM_EVENTS] = {
108 [PHYE_LOSS_OF_SIGNAL] = sas_phye_loss_of_signal,
109 [PHYE_OOB_DONE] = sas_phye_oob_done,
110 [PHYE_OOB_ERROR] = sas_phye_oob_error,
111 [PHYE_SPINUP_HOLD] = sas_phye_spinup_hold,
114 static const work_func_t sas_port_event_fns[PORT_NUM_EVENTS] = {
115 [PORTE_BYTES_DMAED] = sas_porte_bytes_dmaed,
116 [PORTE_BROADCAST_RCVD] = sas_porte_broadcast_rcvd,
117 [PORTE_LINK_RESET_ERR] = sas_porte_link_reset_err,
118 [PORTE_TIMER_EVENT] = sas_porte_timer_event,
119 [PORTE_HARD_RESET] = sas_porte_hard_reset,
122 /* Now register the phys. */
123 for (i = 0; i < sas_ha->num_phys; i++) {
125 struct asd_sas_phy *phy = sas_ha->sas_phy[i];
128 INIT_LIST_HEAD(&phy->port_phy_el);
129 for (k = 0; k < PORT_NUM_EVENTS; k++) {
130 INIT_WORK(&phy->port_events[k].work,
131 sas_port_event_fns[k]);
132 phy->port_events[k].phy = phy;
135 for (k = 0; k < PHY_NUM_EVENTS; k++) {
136 INIT_WORK(&phy->phy_events[k].work,
137 sas_phy_event_fns[k]);
138 phy->phy_events[k].phy = phy;
143 spin_lock_init(&phy->frame_rcvd_lock);
144 spin_lock_init(&phy->sas_prim_lock);
145 phy->frame_rcvd_size = 0;
147 phy->phy = sas_phy_alloc(&sas_ha->core.shost->shost_gendev,
152 phy->phy->identify.initiator_port_protocols =
154 phy->phy->identify.target_port_protocols = phy->tproto;
155 phy->phy->identify.sas_address = SAS_ADDR(sas_ha->sas_addr);
156 phy->phy->identify.phy_identifier = i;
157 phy->phy->minimum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
158 phy->phy->maximum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
159 phy->phy->minimum_linkrate = SAS_LINK_RATE_UNKNOWN;
160 phy->phy->maximum_linkrate = SAS_LINK_RATE_UNKNOWN;
161 phy->phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN;
163 sas_phy_add(phy->phy);