/* * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * 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. * The full GNU General Public License is included in this distribution * in the file called LICENSE.GPL. * * BSD LICENSE * * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name of Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "isci.h" #include "phy.h" #include "scic_port.h" #include "scic_config_parameters.h" struct scic_sds_phy; extern enum sci_status scic_sds_phy_start(struct scic_sds_phy *sci_phy); extern enum sci_status scic_sds_phy_stop(struct scic_sds_phy *sci_phy); /** * isci_phy_init() - This function is called by the probe function to * initialize the phy objects. This func assumes that the isci_port objects * associated with the SCU have been initialized. * @isci_phy: This parameter specifies the isci_phy object to initialize * @isci_host: This parameter specifies the parent SCU host object for this * isci_phy * @index: This parameter specifies which SCU phy associates with this * isci_phy. Generally, SCU phy 0 relates isci_phy 0, etc. * */ void isci_phy_init( struct isci_phy *phy, struct isci_host *isci_host, int index) { struct scic_sds_controller *scic = isci_host->core_controller; struct scic_sds_phy *scic_phy; union scic_oem_parameters oem; enum sci_status status = SCI_SUCCESS; u64 sas_addr; /*--------------- SCU_Phy Initialization Stuff -----------------------*/ status = scic_controller_get_phy_handle(scic, index, &scic_phy); if (status == SCI_SUCCESS) { sci_object_set_association(scic_phy, (void *)phy); phy->sci_phy_handle = scic_phy; } else dev_err(&isci_host->pdev->dev, "failed scic_controller_get_phy_handle\n"); scic_oem_parameters_get(scic, &oem); sas_addr = oem.sds1.phys[index].sas_address.high; sas_addr <<= 32; sas_addr |= oem.sds1.phys[index].sas_address.low; swab64s(&sas_addr); memcpy(phy->sas_addr, &sas_addr, sizeof(sas_addr)); phy->isci_port = NULL; phy->sas_phy.enabled = 0; phy->sas_phy.id = index; phy->sas_phy.sas_addr = &phy->sas_addr[0]; phy->sas_phy.frame_rcvd = (u8 *)&phy->frame_rcvd; phy->sas_phy.ha = &isci_host->sas_ha; phy->sas_phy.lldd_phy = phy; phy->sas_phy.enabled = 1; phy->sas_phy.class = SAS; phy->sas_phy.iproto = SAS_PROTOCOL_ALL; phy->sas_phy.tproto = 0; phy->sas_phy.type = PHY_TYPE_PHYSICAL; phy->sas_phy.role = PHY_ROLE_INITIATOR; phy->sas_phy.oob_mode = OOB_NOT_CONNECTED; phy->sas_phy.linkrate = SAS_LINK_RATE_UNKNOWN; memset((u8 *)&phy->frame_rcvd, 0, sizeof(phy->frame_rcvd)); } /** * isci_phy_control() - This function is one of the SAS Domain Template * functions. This is a phy management function. * @phy: This parameter specifies the sphy being controlled. * @func: This parameter specifies the phy control function being invoked. * @buf: This parameter is specific to the phy function being invoked. * * status, zero indicates success. */ int isci_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, void *buf) { int ret = 0; struct isci_phy *iphy = sas_phy->lldd_phy; struct isci_port *iport = iphy->isci_port; struct isci_host *ihost = sas_phy->ha->lldd_ha; unsigned long flags; dev_dbg(&ihost->pdev->dev, "%s: phy %p; func %d; buf %p; isci phy %p, port %p\n", __func__, sas_phy, func, buf, iphy, iport); switch (func) { case PHY_FUNC_DISABLE: spin_lock_irqsave(&ihost->scic_lock, flags); scic_sds_phy_stop(iphy->sci_phy_handle); spin_unlock_irqrestore(&ihost->scic_lock, flags); break; case PHY_FUNC_LINK_RESET: spin_lock_irqsave(&ihost->scic_lock, flags); scic_sds_phy_stop(iphy->sci_phy_handle); scic_sds_phy_start(iphy->sci_phy_handle); spin_unlock_irqrestore(&ihost->scic_lock, flags); break; case PHY_FUNC_HARD_RESET: if (!iport) return -ENODEV; /* Perform the port reset. */ ret = isci_port_perform_hard_reset(ihost, iport, iphy); break; default: dev_dbg(&ihost->pdev->dev, "%s: phy %p; func %d NOT IMPLEMENTED!\n", __func__, sas_phy, func); ret = -ENOSYS; break; } return ret; }