^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Serial Attached SCSI (SAS) Phy class
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include "sas_internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <scsi/scsi_host.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <scsi/scsi_transport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <scsi/scsi_transport_sas.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "../scsi_sas_internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) /* ---------- Phy events ---------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) static void sas_phye_loss_of_signal(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) struct asd_sas_event *ev = to_asd_sas_event(work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct asd_sas_phy *phy = ev->phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) phy->error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) sas_deform_port(phy, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static void sas_phye_oob_done(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct asd_sas_event *ev = to_asd_sas_event(work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct asd_sas_phy *phy = ev->phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) phy->error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static void sas_phye_oob_error(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct asd_sas_event *ev = to_asd_sas_event(work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct asd_sas_phy *phy = ev->phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct sas_ha_struct *sas_ha = phy->ha;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct asd_sas_port *port = phy->port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct sas_internal *i =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) to_sas_internal(sas_ha->core.shost->transportt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) sas_deform_port(phy, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) if (!port && phy->enabled && i->dft->lldd_control_phy) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) phy->error++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) switch (phy->error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) i->dft->lldd_control_phy(phy, PHY_FUNC_HARD_RESET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) case 3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) phy->error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) phy->enabled = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) i->dft->lldd_control_phy(phy, PHY_FUNC_DISABLE, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) static void sas_phye_spinup_hold(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct asd_sas_event *ev = to_asd_sas_event(work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct asd_sas_phy *phy = ev->phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) struct sas_ha_struct *sas_ha = phy->ha;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct sas_internal *i =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) to_sas_internal(sas_ha->core.shost->transportt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) phy->error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) static void sas_phye_resume_timeout(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct asd_sas_event *ev = to_asd_sas_event(work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct asd_sas_phy *phy = ev->phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) /* phew, lldd got the phy back in the nick of time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) if (!phy->suspended) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) dev_info(&phy->phy->dev, "resume timeout cancelled\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) phy->error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) phy->suspended = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) sas_deform_port(phy, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) static void sas_phye_shutdown(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) struct asd_sas_event *ev = to_asd_sas_event(work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct asd_sas_phy *phy = ev->phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct sas_ha_struct *sas_ha = phy->ha;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) struct sas_internal *i =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) to_sas_internal(sas_ha->core.shost->transportt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) if (phy->enabled) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) phy->error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) phy->enabled = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) ret = i->dft->lldd_control_phy(phy, PHY_FUNC_DISABLE, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) pr_notice("lldd disable phy%d returned %d\n", phy->id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) pr_notice("phy%d is not enabled, cannot shutdown\n", phy->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) phy->in_shutdown = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) /* ---------- Phy class registration ---------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) int sas_register_phys(struct sas_ha_struct *sas_ha)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) /* Now register the phys. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) for (i = 0; i < sas_ha->num_phys; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) struct asd_sas_phy *phy = sas_ha->sas_phy[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) phy->error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) atomic_set(&phy->event_nr, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) INIT_LIST_HEAD(&phy->port_phy_el);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) phy->port = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) phy->ha = sas_ha;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) spin_lock_init(&phy->frame_rcvd_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) spin_lock_init(&phy->sas_prim_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) phy->frame_rcvd_size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) phy->phy = sas_phy_alloc(&sas_ha->core.shost->shost_gendev, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if (!phy->phy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) phy->phy->identify.initiator_port_protocols =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) phy->iproto;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) phy->phy->identify.target_port_protocols = phy->tproto;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) phy->phy->identify.sas_address = SAS_ADDR(sas_ha->sas_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) phy->phy->identify.phy_identifier = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) phy->phy->minimum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) phy->phy->maximum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) phy->phy->minimum_linkrate = SAS_LINK_RATE_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) phy->phy->maximum_linkrate = SAS_LINK_RATE_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) phy->phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) sas_phy_add(phy->phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) const work_func_t sas_phy_event_fns[PHY_NUM_EVENTS] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) [PHYE_LOSS_OF_SIGNAL] = sas_phye_loss_of_signal,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) [PHYE_OOB_DONE] = sas_phye_oob_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) [PHYE_OOB_ERROR] = sas_phye_oob_error,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) [PHYE_SPINUP_HOLD] = sas_phye_spinup_hold,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) [PHYE_RESUME_TIMEOUT] = sas_phye_resume_timeout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) [PHYE_SHUTDOWN] = sas_phye_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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