From 2908d778ab3e244900c310974e1fc1c69066e450 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Tue, 29 Aug 2006 09:22:51 -0500 Subject: [SCSI] aic94xx: new driver This is the end point of the separate aic94xx driver based on the original driver and transport class from Luben Tuikov The log of the separate development is: Alexis Bruemmer: o aic94xx: fix hotplug/unplug for expanderless systems o aic94xx: disable split completion timer/setting by default o aic94xx: wide port off expander support o aic94xx: remove various inline functions o aic94xx: use bitops o aic94xx: remove queue comment o aic94xx: remove sas_common.c o aic94xx: sas remove depot's o aic94xx: use available list_for_each_entry_safe_reverse() o aic94xx: sas header file merge James Bottomley: o aic94xx: fix TF_TMF_NO_CTX processing o aic94xx: convert to request_firmware interface o aic94xx: fix hotplug/unplug o aic94xx: add link error counts to the expander phys o aic94xx: add transport class phy reset capability o aic94xx: remove local_attached flag o Remove README o Fixup Makefile variable for libsas rename o Rename sas->libsas o aic94xx: correct return code for sas_discover_event o aic94xx: use parent backlink port o aic94xx: remove channel abstraction o aic94xx: fix routing algorithms o aic94xx: add backlink port o aic94xx: fix cascaded expander properties o aic94xx: fix sleep under lock o aic94xx: fix panic on module removal in complex topology o aic94xx: make use of the new sas_port o rename sas_port to asd_sas_port o Fix for eh_strategy_handler move o aic94xx: move entirely over to correct transport class formulation o remove last vestages of sas_rphy_alloc() o update for eh_timed_out move o Preliminary expander support for aic94xx o sas: remove event thread o minor warning cleanups o remove last vestiges of id mapping arrays o Further updates o Convert aic94xx over entirely to the transport class end device and o update aic94xx/sas to use the new sas transport class end device o [PATCH] aic94xx: attaching to the sas transport class o Add missing completion removal from prior patch o [PATCH] aic94xx: attaching to the sas transport class o Build fixes from akpm Jeff Garzik: o [scsi aic94xx] Remove ->owner from PCI info table Luben Tuikov: o initial aic94xx driver Mike Anderson: o aic94xx: fix panic on module insertion o aic94xx: stub out SATA_DEV case o aic94xx: compile warning cleanups o aic94xx: sas_alloc_task o aic94xx: ref count update o aic94xx nexus loss time value o [PATCH] aic94xx: driver assertion in non-x86 BIOS env Randy Dunlap: o libsas: externs not needed Robert Tarte: o aic94xx: sequence patch - fixes SATA support Signed-off-by: James Bottomley --- drivers/scsi/libsas/sas_phy.c | 157 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 157 insertions(+) create mode 100644 drivers/scsi/libsas/sas_phy.c (limited to 'drivers/scsi/libsas/sas_phy.c') diff --git a/drivers/scsi/libsas/sas_phy.c b/drivers/scsi/libsas/sas_phy.c new file mode 100644 index 0000000..024ab00 --- /dev/null +++ b/drivers/scsi/libsas/sas_phy.c @@ -0,0 +1,157 @@ +/* + * Serial Attached SCSI (SAS) Phy class + * + * Copyright (C) 2005 Adaptec, Inc. All rights reserved. + * Copyright (C) 2005 Luben Tuikov + * + * 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 +#include +#include +#include "../scsi_sas_internal.h" + +/* ---------- Phy events ---------- */ + +static void sas_phye_loss_of_signal(void *data) +{ + struct asd_sas_phy *phy = data; + + sas_begin_event(PHYE_LOSS_OF_SIGNAL, &phy->ha->event_lock, + &phy->phy_events_pending); + phy->error = 0; + sas_deform_port(phy); +} + +static void sas_phye_oob_done(void *data) +{ + struct asd_sas_phy *phy = data; + + sas_begin_event(PHYE_OOB_DONE, &phy->ha->event_lock, + &phy->phy_events_pending); + phy->error = 0; +} + +static void sas_phye_oob_error(void *data) +{ + struct asd_sas_phy *phy = data; + 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_begin_event(PHYE_OOB_ERROR, &phy->ha->event_lock, + &phy->phy_events_pending); + + sas_deform_port(phy); + + 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); + break; + case 3: + default: + phy->error = 0; + phy->enabled = 0; + i->dft->lldd_control_phy(phy, PHY_FUNC_DISABLE); + break; + } + } +} + +static void sas_phye_spinup_hold(void *data) +{ + struct asd_sas_phy *phy = data; + struct sas_ha_struct *sas_ha = phy->ha; + struct sas_internal *i = + to_sas_internal(sas_ha->core.shost->transportt); + + sas_begin_event(PHYE_SPINUP_HOLD, &phy->ha->event_lock, + &phy->phy_events_pending); + + phy->error = 0; + i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD); +} + +/* ---------- Phy class registration ---------- */ + +int sas_register_phys(struct sas_ha_struct *sas_ha) +{ + int i; + + static void (*sas_phy_event_fns[PHY_NUM_EVENTS])(void *) = { + [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, + }; + + static void (*sas_port_event_fns[PORT_NUM_EVENTS])(void *) = { + [PORTE_BYTES_DMAED] = sas_porte_bytes_dmaed, + [PORTE_BROADCAST_RCVD] = sas_porte_broadcast_rcvd, + [PORTE_LINK_RESET_ERR] = sas_porte_link_reset_err, + [PORTE_TIMER_EVENT] = sas_porte_timer_event, + [PORTE_HARD_RESET] = sas_porte_hard_reset, + }; + + /* Now register the phys. */ + for (i = 0; i < sas_ha->num_phys; i++) { + int k; + struct asd_sas_phy *phy = sas_ha->sas_phy[i]; + + phy->error = 0; + INIT_LIST_HEAD(&phy->port_phy_el); + for (k = 0; k < PORT_NUM_EVENTS; k++) + INIT_WORK(&phy->port_events[k], sas_port_event_fns[k], + phy); + + for (k = 0; k < PHY_NUM_EVENTS; k++) + INIT_WORK(&phy->phy_events[k], sas_phy_event_fns[k], + phy); + 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_1_5_GBPS; + phy->phy->maximum_linkrate_hw = SAS_LINK_RATE_3_0_GBPS; + phy->phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS; + phy->phy->maximum_linkrate = SAS_LINK_RATE_3_0_GBPS; + phy->phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN; + + sas_phy_add(phy->phy); + } + + return 0; +} -- cgit v1.1 From a01e70e570a72b8a8c9a58062e4f5bdcd3986222 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Wed, 6 Sep 2006 19:28:07 -0500 Subject: [SCSI] aci94xx: implement link rate setting This patch implements the ability to set the minimum and maximum linkrates for both libsas (for expanders) and aic94xx (for the host phys). It also tidies up the setting of the hardware min and max to make sure they're updated when the expander emits a change broadcast. Signed-off-by: James Bottomley --- drivers/scsi/libsas/sas_phy.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'drivers/scsi/libsas/sas_phy.c') diff --git a/drivers/scsi/libsas/sas_phy.c b/drivers/scsi/libsas/sas_phy.c index 024ab00..9340cdb 100644 --- a/drivers/scsi/libsas/sas_phy.c +++ b/drivers/scsi/libsas/sas_phy.c @@ -67,13 +67,14 @@ static void sas_phye_oob_error(void *data) switch (phy->error) { case 1: case 2: - i->dft->lldd_control_phy(phy, PHY_FUNC_HARD_RESET); + 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); + i->dft->lldd_control_phy(phy, PHY_FUNC_DISABLE, NULL); break; } } @@ -90,7 +91,7 @@ static void sas_phye_spinup_hold(void *data) &phy->phy_events_pending); phy->error = 0; - i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD); + i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD, NULL); } /* ---------- Phy class registration ---------- */ @@ -144,10 +145,10 @@ int sas_register_phys(struct sas_ha_struct *sas_ha) 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_1_5_GBPS; - phy->phy->maximum_linkrate_hw = SAS_LINK_RATE_3_0_GBPS; - phy->phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS; - phy->phy->maximum_linkrate = SAS_LINK_RATE_3_0_GBPS; + 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); -- cgit v1.1