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2908d778 JB |
1 | /* |
2 | * Serial Attached SCSI (SAS) Phy class | |
3 | * | |
4 | * Copyright (C) 2005 Adaptec, Inc. All rights reserved. | |
5 | * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com> | |
6 | * | |
7 | * This file is licensed under GPLv2. | |
8 | * | |
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. | |
13 | * | |
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. | |
18 | * | |
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 | |
22 | * | |
23 | */ | |
24 | ||
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" | |
30 | ||
31 | /* ---------- Phy events ---------- */ | |
32 | ||
c4028958 | 33 | static void sas_phye_loss_of_signal(struct work_struct *work) |
2908d778 | 34 | { |
22b9153f | 35 | struct asd_sas_event *ev = to_asd_sas_event(work); |
c4028958 | 36 | struct asd_sas_phy *phy = ev->phy; |
2908d778 | 37 | |
b15ebe0b | 38 | clear_bit(PHYE_LOSS_OF_SIGNAL, &phy->phy_events_pending); |
2908d778 | 39 | phy->error = 0; |
90f1e10d | 40 | sas_deform_port(phy, 1); |
2908d778 JB |
41 | } |
42 | ||
c4028958 | 43 | static void sas_phye_oob_done(struct work_struct *work) |
2908d778 | 44 | { |
22b9153f | 45 | struct asd_sas_event *ev = to_asd_sas_event(work); |
c4028958 | 46 | struct asd_sas_phy *phy = ev->phy; |
2908d778 | 47 | |
b15ebe0b | 48 | clear_bit(PHYE_OOB_DONE, &phy->phy_events_pending); |
2908d778 JB |
49 | phy->error = 0; |
50 | } | |
51 | ||
c4028958 | 52 | static void sas_phye_oob_error(struct work_struct *work) |
2908d778 | 53 | { |
22b9153f | 54 | struct asd_sas_event *ev = to_asd_sas_event(work); |
c4028958 | 55 | struct asd_sas_phy *phy = ev->phy; |
2908d778 JB |
56 | struct sas_ha_struct *sas_ha = phy->ha; |
57 | struct asd_sas_port *port = phy->port; | |
58 | struct sas_internal *i = | |
59 | to_sas_internal(sas_ha->core.shost->transportt); | |
60 | ||
b15ebe0b | 61 | clear_bit(PHYE_OOB_ERROR, &phy->phy_events_pending); |
2908d778 | 62 | |
90f1e10d | 63 | sas_deform_port(phy, 1); |
2908d778 JB |
64 | |
65 | if (!port && phy->enabled && i->dft->lldd_control_phy) { | |
66 | phy->error++; | |
67 | switch (phy->error) { | |
68 | case 1: | |
69 | case 2: | |
a01e70e5 JB |
70 | i->dft->lldd_control_phy(phy, PHY_FUNC_HARD_RESET, |
71 | NULL); | |
2908d778 JB |
72 | break; |
73 | case 3: | |
74 | default: | |
75 | phy->error = 0; | |
76 | phy->enabled = 0; | |
a01e70e5 | 77 | i->dft->lldd_control_phy(phy, PHY_FUNC_DISABLE, NULL); |
2908d778 JB |
78 | break; |
79 | } | |
80 | } | |
81 | } | |
82 | ||
c4028958 | 83 | static void sas_phye_spinup_hold(struct work_struct *work) |
2908d778 | 84 | { |
22b9153f | 85 | struct asd_sas_event *ev = to_asd_sas_event(work); |
c4028958 | 86 | struct asd_sas_phy *phy = ev->phy; |
2908d778 JB |
87 | struct sas_ha_struct *sas_ha = phy->ha; |
88 | struct sas_internal *i = | |
89 | to_sas_internal(sas_ha->core.shost->transportt); | |
90 | ||
b15ebe0b | 91 | clear_bit(PHYE_SPINUP_HOLD, &phy->phy_events_pending); |
2908d778 JB |
92 | |
93 | phy->error = 0; | |
a01e70e5 | 94 | i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD, NULL); |
2908d778 JB |
95 | } |
96 | ||
97 | /* ---------- Phy class registration ---------- */ | |
98 | ||
99 | int sas_register_phys(struct sas_ha_struct *sas_ha) | |
100 | { | |
101 | int i; | |
102 | ||
c4028958 | 103 | static const work_func_t sas_phy_event_fns[PHY_NUM_EVENTS] = { |
2908d778 JB |
104 | [PHYE_LOSS_OF_SIGNAL] = sas_phye_loss_of_signal, |
105 | [PHYE_OOB_DONE] = sas_phye_oob_done, | |
106 | [PHYE_OOB_ERROR] = sas_phye_oob_error, | |
107 | [PHYE_SPINUP_HOLD] = sas_phye_spinup_hold, | |
108 | }; | |
109 | ||
c4028958 | 110 | static const work_func_t sas_port_event_fns[PORT_NUM_EVENTS] = { |
2908d778 JB |
111 | [PORTE_BYTES_DMAED] = sas_porte_bytes_dmaed, |
112 | [PORTE_BROADCAST_RCVD] = sas_porte_broadcast_rcvd, | |
113 | [PORTE_LINK_RESET_ERR] = sas_porte_link_reset_err, | |
114 | [PORTE_TIMER_EVENT] = sas_porte_timer_event, | |
115 | [PORTE_HARD_RESET] = sas_porte_hard_reset, | |
116 | }; | |
117 | ||
118 | /* Now register the phys. */ | |
119 | for (i = 0; i < sas_ha->num_phys; i++) { | |
120 | int k; | |
121 | struct asd_sas_phy *phy = sas_ha->sas_phy[i]; | |
122 | ||
123 | phy->error = 0; | |
124 | INIT_LIST_HEAD(&phy->port_phy_el); | |
c4028958 | 125 | for (k = 0; k < PORT_NUM_EVENTS; k++) { |
22b9153f | 126 | INIT_SAS_WORK(&phy->port_events[k].work, sas_port_event_fns[k]); |
c4028958 DH |
127 | phy->port_events[k].phy = phy; |
128 | } | |
129 | ||
130 | for (k = 0; k < PHY_NUM_EVENTS; k++) { | |
22b9153f | 131 | INIT_SAS_WORK(&phy->phy_events[k].work, sas_phy_event_fns[k]); |
c4028958 DH |
132 | phy->phy_events[k].phy = phy; |
133 | } | |
2908d778 | 134 | |
2908d778 JB |
135 | phy->port = NULL; |
136 | phy->ha = sas_ha; | |
137 | spin_lock_init(&phy->frame_rcvd_lock); | |
138 | spin_lock_init(&phy->sas_prim_lock); | |
139 | phy->frame_rcvd_size = 0; | |
140 | ||
22b9153f | 141 | phy->phy = sas_phy_alloc(&sas_ha->core.shost->shost_gendev, i); |
2908d778 JB |
142 | if (!phy->phy) |
143 | return -ENOMEM; | |
144 | ||
145 | phy->phy->identify.initiator_port_protocols = | |
146 | phy->iproto; | |
147 | phy->phy->identify.target_port_protocols = phy->tproto; | |
148 | phy->phy->identify.sas_address = SAS_ADDR(sas_ha->sas_addr); | |
149 | phy->phy->identify.phy_identifier = i; | |
a01e70e5 JB |
150 | phy->phy->minimum_linkrate_hw = SAS_LINK_RATE_UNKNOWN; |
151 | phy->phy->maximum_linkrate_hw = SAS_LINK_RATE_UNKNOWN; | |
152 | phy->phy->minimum_linkrate = SAS_LINK_RATE_UNKNOWN; | |
153 | phy->phy->maximum_linkrate = SAS_LINK_RATE_UNKNOWN; | |
2908d778 JB |
154 | phy->phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN; |
155 | ||
156 | sas_phy_add(phy->phy); | |
157 | } | |
158 | ||
159 | return 0; | |
160 | } |