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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 | /* * 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); } 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; } 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; } } } 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); } 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); } 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) pr_notice("lldd disable phy%02d returned %d\n", phy->id, ret); } else pr_notice("phy%02d is not enabled, cannot shutdown\n", phy->id); } /* ---------- 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; } 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, }; |