diff options
Diffstat (limited to 'drivers/scsi/ibmvscsi/iseries_vscsi.c')
| -rw-r--r-- | drivers/scsi/ibmvscsi/iseries_vscsi.c | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/drivers/scsi/ibmvscsi/iseries_vscsi.c b/drivers/scsi/ibmvscsi/iseries_vscsi.c deleted file mode 100644 index f4776451a754..000000000000 --- a/drivers/scsi/ibmvscsi/iseries_vscsi.c +++ /dev/null @@ -1,173 +0,0 @@ -/* ------------------------------------------------------------ - * iSeries_vscsi.c - * (C) Copyright IBM Corporation 1994, 2003 - * Authors: Colin DeVilbiss (devilbis@us.ibm.com) - * Santiago Leon (santil@us.ibm.com) - * Dave Boutcher (sleddog@us.ibm.com) - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - * USA - * - * ------------------------------------------------------------ - * iSeries-specific functions of the SCSI host adapter for Virtual I/O devices - * - * This driver allows the Linux SCSI peripheral drivers to directly - * access devices in the hosting partition, either on an iSeries - * hypervisor system or a converged hypervisor system. - */ - -#include <asm/iseries/vio.h> -#include <asm/iseries/hv_lp_event.h> -#include <asm/iseries/hv_types.h> -#include <asm/iseries/hv_lp_config.h> -#include <asm/vio.h> -#include <linux/device.h> -#include "ibmvscsi.h" - -/* global variables */ -static struct ibmvscsi_host_data *single_host_data; - -/* ------------------------------------------------------------ - * Routines for direct interpartition interaction - */ -struct srp_lp_event { - struct HvLpEvent lpevt; /* 0x00-0x17 */ - u32 reserved1; /* 0x18-0x1B; unused */ - u16 version; /* 0x1C-0x1D; unused */ - u16 subtype_rc; /* 0x1E-0x1F; unused */ - struct viosrp_crq crq; /* 0x20-0x3F */ -}; - -/** - * standard interface for handling logical partition events. - */ -static void iseriesvscsi_handle_event(struct HvLpEvent *lpevt) -{ - struct srp_lp_event *evt = (struct srp_lp_event *)lpevt; - - if (!evt) { - printk(KERN_ERR "ibmvscsi: received null event\n"); - return; - } - - if (single_host_data == NULL) { - printk(KERN_ERR - "ibmvscsi: received event, no adapter present\n"); - return; - } - - ibmvscsi_handle_crq(&evt->crq, single_host_data); -} - -/* ------------------------------------------------------------ - * Routines for driver initialization - */ -static int iseriesvscsi_init_crq_queue(struct crq_queue *queue, - struct ibmvscsi_host_data *hostdata, - int max_requests) -{ - int rc; - - single_host_data = hostdata; - rc = viopath_open(viopath_hostLp, viomajorsubtype_scsi, max_requests); - if (rc < 0) { - printk("viopath_open failed with rc %d in open_event_path\n", - rc); - goto viopath_open_failed; - } - - rc = vio_setHandler(viomajorsubtype_scsi, iseriesvscsi_handle_event); - if (rc < 0) { - printk("vio_setHandler failed with rc %d in open_event_path\n", - rc); - goto vio_setHandler_failed; - } - return 0; - - vio_setHandler_failed: - viopath_close(viopath_hostLp, viomajorsubtype_scsi, max_requests); - viopath_open_failed: - return -1; -} - -static void iseriesvscsi_release_crq_queue(struct crq_queue *queue, - struct ibmvscsi_host_data *hostdata, - int max_requests) -{ - vio_clearHandler(viomajorsubtype_scsi); - viopath_close(viopath_hostLp, viomajorsubtype_scsi, max_requests); -} - -/** - * reset_crq_queue: - resets a crq after a failure - * @queue: crq_queue to initialize and register - * @hostdata: ibmvscsi_host_data of host - * - * no-op for iSeries - */ -static int iseriesvscsi_reset_crq_queue(struct crq_queue *queue, - struct ibmvscsi_host_data *hostdata) -{ - return 0; -} - -/** - * reenable_crq_queue: - reenables a crq after a failure - * @queue: crq_queue to initialize and register - * @hostdata: ibmvscsi_host_data of host - * - * no-op for iSeries - */ -static int iseriesvscsi_reenable_crq_queue(struct crq_queue *queue, - struct ibmvscsi_host_data *hostdata) -{ - return 0; -} - -/** - * iseriesvscsi_send_crq: - Send a CRQ - * @hostdata: the adapter - * @word1: the first 64 bits of the data - * @word2: the second 64 bits of the data - */ -static int iseriesvscsi_send_crq(struct ibmvscsi_host_data *hostdata, - u64 word1, u64 word2) -{ - single_host_data = hostdata; - return HvCallEvent_signalLpEventFast(viopath_hostLp, - HvLpEvent_Type_VirtualIo, - viomajorsubtype_scsi, - HvLpEvent_AckInd_NoAck, - HvLpEvent_AckType_ImmediateAck, - viopath_sourceinst(viopath_hostLp), - viopath_targetinst(viopath_hostLp), - 0, - VIOVERSION << 16, word1, word2, 0, - 0); -} - -static int iseriesvscsi_resume(struct ibmvscsi_host_data *hostdata) -{ - return 0; -} - -struct ibmvscsi_ops iseriesvscsi_ops = { - .init_crq_queue = iseriesvscsi_init_crq_queue, - .release_crq_queue = iseriesvscsi_release_crq_queue, - .reset_crq_queue = iseriesvscsi_reset_crq_queue, - .reenable_crq_queue = iseriesvscsi_reenable_crq_queue, - .send_crq = iseriesvscsi_send_crq, - .resume = iseriesvscsi_resume, -}; |