356 lines
11 KiB
C
356 lines
11 KiB
C
/*-
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* CAM ioctl compatibility shims
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*
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* Copyright (c) 2013 Scott Long
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/types.h>
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#include <sys/kernel.h>
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#include <sys/conf.h>
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#include <sys/fcntl.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/sysctl.h>
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#include <sys/kthread.h>
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#include <cam/cam.h>
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#include <cam/cam_ccb.h>
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#include <cam/cam_xpt.h>
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#include <cam/cam_compat.h>
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#include <cam/cam_periph.h>
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#include <cam/scsi/scsi_pass.h>
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#include "opt_cam.h"
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static int cam_compat_handle_0x17(struct cdev *dev, u_long cmd, caddr_t addr,
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int flag, struct thread *td, d_ioctl_t *cbfnp);
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static int cam_compat_handle_0x18(struct cdev *dev, u_long cmd, caddr_t addr,
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int flag, struct thread *td, d_ioctl_t *cbfnp);
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static int cam_compat_translate_dev_match_0x18(union ccb *ccb);
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int
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cam_compat_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
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struct thread *td, d_ioctl_t *cbfnp)
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{
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int error;
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switch (cmd) {
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case CAMIOCOMMAND_0x16:
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{
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struct ccb_hdr_0x17 *hdr17;
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hdr17 = (struct ccb_hdr_0x17 *)addr;
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if (hdr17->flags & CAM_SG_LIST_PHYS_0x16) {
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hdr17->flags &= ~CAM_SG_LIST_PHYS_0x16;
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hdr17->flags |= CAM_DATA_SG_PADDR;
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}
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if (hdr17->flags & CAM_DATA_PHYS_0x16) {
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hdr17->flags &= ~CAM_DATA_PHYS_0x16;
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hdr17->flags |= CAM_DATA_PADDR;
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}
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if (hdr17->flags & CAM_SCATTER_VALID_0x16) {
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hdr17->flags &= CAM_SCATTER_VALID_0x16;
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hdr17->flags |= CAM_DATA_SG;
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}
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cmd = CAMIOCOMMAND;
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error = cam_compat_handle_0x17(dev, cmd, addr, flag, td, cbfnp);
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break;
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}
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case CAMGETPASSTHRU_0x16:
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cmd = CAMGETPASSTHRU;
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error = cam_compat_handle_0x17(dev, cmd, addr, flag, td, cbfnp);
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break;
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case CAMIOCOMMAND_0x17:
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cmd = CAMIOCOMMAND;
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error = cam_compat_handle_0x17(dev, cmd, addr, flag, td, cbfnp);
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break;
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case CAMGETPASSTHRU_0x17:
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cmd = CAMGETPASSTHRU;
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error = cam_compat_handle_0x17(dev, cmd, addr, flag, td, cbfnp);
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break;
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case CAMIOCOMMAND_0x18:
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cmd = CAMIOCOMMAND;
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error = cam_compat_handle_0x18(dev, cmd, addr, flag, td, cbfnp);
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break;
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case CAMGETPASSTHRU_0x18:
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cmd = CAMGETPASSTHRU;
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error = cam_compat_handle_0x18(dev, cmd, addr, flag, td, cbfnp);
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break;
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default:
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error = ENOTTY;
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}
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return (error);
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}
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static int
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cam_compat_handle_0x17(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
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struct thread *td, d_ioctl_t *cbfnp)
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{
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union ccb *ccb;
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struct ccb_hdr *hdr;
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struct ccb_hdr_0x17 *hdr17;
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uint8_t *ccbb, *ccbb17;
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u_int error;
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hdr17 = (struct ccb_hdr_0x17 *)addr;
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ccb = xpt_alloc_ccb();
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hdr = &ccb->ccb_h;
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hdr->pinfo = hdr17->pinfo;
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hdr->xpt_links = hdr17->xpt_links;
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hdr->sim_links = hdr17->sim_links;
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hdr->periph_links = hdr17->periph_links;
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hdr->retry_count = hdr17->retry_count;
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hdr->cbfcnp = hdr17->cbfcnp;
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hdr->func_code = hdr17->func_code;
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hdr->status = hdr17->status;
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hdr->path = hdr17->path;
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hdr->path_id = hdr17->path_id;
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hdr->target_id = hdr17->target_id;
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hdr->target_lun = hdr17->target_lun;
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hdr->flags = hdr17->flags;
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hdr->xflags = 0;
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hdr->periph_priv = hdr17->periph_priv;
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hdr->sim_priv = hdr17->sim_priv;
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hdr->timeout = hdr17->timeout;
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hdr->softtimeout.tv_sec = 0;
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hdr->softtimeout.tv_usec = 0;
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ccbb = (uint8_t *)&hdr[1];
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ccbb17 = (uint8_t *)&hdr17[1];
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bcopy(ccbb17, ccbb, CAM_0X17_DATA_LEN);
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error = (cbfnp)(dev, cmd, (caddr_t)ccb, flag, td);
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hdr17->pinfo = hdr->pinfo;
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hdr17->xpt_links = hdr->xpt_links;
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hdr17->sim_links = hdr->sim_links;
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hdr17->periph_links = hdr->periph_links;
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hdr17->retry_count = hdr->retry_count;
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hdr17->cbfcnp = hdr->cbfcnp;
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hdr17->func_code = hdr->func_code;
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hdr17->status = hdr->status;
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hdr17->path = hdr->path;
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hdr17->path_id = hdr->path_id;
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hdr17->target_id = hdr->target_id;
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hdr17->target_lun = hdr->target_lun;
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hdr17->flags = hdr->flags;
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hdr17->periph_priv = hdr->periph_priv;
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hdr17->sim_priv = hdr->sim_priv;
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hdr17->timeout = hdr->timeout;
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if (ccb->ccb_h.func_code == XPT_PATH_INQ) {
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struct ccb_pathinq *cpi;
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struct ccb_pathinq_0x17 *cpi17;
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/* The PATH_INQ only needs special handling on the way out */
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cpi = &ccb->cpi;
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cpi17 = (struct ccb_pathinq_0x17 *)hdr17;
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cpi17->version_num = cpi->version_num;
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cpi17->hba_inquiry = cpi->hba_inquiry;
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cpi17->target_sprt = (u_int8_t)cpi->target_sprt;
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cpi17->hba_misc = (u_int8_t)cpi->hba_misc;
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cpi17->hba_eng_cnt = cpi->hba_eng_cnt;
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bcopy(&cpi->vuhba_flags[0], &cpi17->vuhba_flags[0], VUHBALEN);
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cpi17->max_target = cpi->max_target;
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cpi17->max_lun = cpi->max_lun;
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cpi17->async_flags = cpi->async_flags;
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cpi17->hpath_id = cpi->hpath_id;
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cpi17->initiator_id = cpi->initiator_id;
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bcopy(&cpi->sim_vid[0], &cpi17->sim_vid[0], SIM_IDLEN);
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bcopy(&cpi->hba_vid[0], &cpi17->hba_vid[0], HBA_IDLEN);
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bcopy(&cpi->dev_name[0], &cpi17->dev_name[0], DEV_IDLEN);
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cpi17->unit_number = cpi->unit_number;
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cpi17->bus_id = cpi->bus_id;
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cpi17->base_transfer_speed = cpi->base_transfer_speed;
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cpi17->protocol = cpi->protocol;
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cpi17->protocol_version = cpi->protocol_version;
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cpi17->transport = cpi->transport;
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cpi17->transport_version = cpi->transport_version;
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bcopy(&cpi->xport_specific, &cpi17->xport_specific,
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PATHINQ_SETTINGS_SIZE);
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cpi17->maxio = cpi->maxio;
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cpi17->hba_vendor = cpi->hba_vendor;
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cpi17->hba_device = cpi->hba_device;
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cpi17->hba_subvendor = cpi->hba_subvendor;
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cpi17->hba_subdevice = cpi->hba_subdevice;
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} else if (ccb->ccb_h.func_code == XPT_DEV_MATCH) {
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/* Copy the rest of the header over */
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bcopy(ccbb, ccbb17, CAM_0X17_DATA_LEN);
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cam_compat_translate_dev_match_0x18(ccb);
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} else {
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bcopy(ccbb, ccbb17, CAM_0X17_DATA_LEN);
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}
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xpt_free_ccb(ccb);
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return (error);
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}
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static int
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cam_compat_handle_0x18(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
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struct thread *td, d_ioctl_t *cbfnp)
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{
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union ccb *ccb;
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struct ccb_hdr *hdr;
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struct ccb_hdr_0x18 *hdr18;
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uint8_t *ccbb, *ccbb18;
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u_int error;
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hdr18 = (struct ccb_hdr_0x18 *)addr;
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ccb = xpt_alloc_ccb();
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hdr = &ccb->ccb_h;
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hdr->pinfo = hdr18->pinfo;
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hdr->xpt_links = hdr18->xpt_links;
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hdr->sim_links = hdr18->sim_links;
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hdr->periph_links = hdr18->periph_links;
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hdr->retry_count = hdr18->retry_count;
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hdr->cbfcnp = hdr18->cbfcnp;
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hdr->func_code = hdr18->func_code;
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hdr->status = hdr18->status;
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hdr->path = hdr18->path;
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hdr->path_id = hdr18->path_id;
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hdr->target_id = hdr18->target_id;
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hdr->target_lun = hdr18->target_lun;
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if (hdr18->xflags & CAM_EXTLUN_VALID_0x18)
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hdr->target_lun = hdr18->ext_lun;
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hdr->flags = hdr18->flags;
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hdr->xflags = hdr18->xflags;
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hdr->periph_priv = hdr18->periph_priv;
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hdr->sim_priv = hdr18->sim_priv;
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hdr->timeout = hdr18->timeout;
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hdr->softtimeout.tv_sec = 0;
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hdr->softtimeout.tv_usec = 0;
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ccbb = (uint8_t *)&hdr[1];
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ccbb18 = (uint8_t *)&hdr18[1];
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bcopy(ccbb18, ccbb, CAM_0X18_DATA_LEN);
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error = (cbfnp)(dev, cmd, (caddr_t)ccb, flag, td);
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hdr18->pinfo = hdr->pinfo;
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hdr18->xpt_links = hdr->xpt_links;
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hdr18->sim_links = hdr->sim_links;
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hdr18->periph_links = hdr->periph_links;
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hdr18->retry_count = hdr->retry_count;
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hdr18->cbfcnp = hdr->cbfcnp;
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hdr18->func_code = hdr->func_code;
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hdr18->status = hdr->status;
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hdr18->path = hdr->path;
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hdr18->path_id = hdr->path_id;
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hdr18->target_id = hdr->target_id;
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hdr18->target_lun = hdr->target_lun;
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hdr18->ext_lun = hdr->target_lun;
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hdr18->flags = hdr->flags;
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hdr18->xflags = hdr->xflags | CAM_EXTLUN_VALID_0x18;
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hdr18->periph_priv = hdr->periph_priv;
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hdr18->sim_priv = hdr->sim_priv;
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hdr18->timeout = hdr->timeout;
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bcopy(ccbb, ccbb18, CAM_0X18_DATA_LEN);
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if (ccb->ccb_h.func_code == XPT_DEV_MATCH)
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cam_compat_translate_dev_match_0x18(ccb);
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xpt_free_ccb(ccb);
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return (error);
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}
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static int
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cam_compat_translate_dev_match_0x18(union ccb *ccb)
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{
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struct dev_match_result *dm;
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struct dev_match_result_0x18 *dm18;
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struct cam_periph_map_info mapinfo;
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int i;
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/* Remap the CCB into kernel address space */
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bzero(&mapinfo, sizeof(mapinfo));
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cam_periph_mapmem(ccb, &mapinfo, MAXPHYS);
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dm = ccb->cdm.matches;
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/* Translate in-place: old fields are smaller */
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dm18 = (struct dev_match_result_0x18 *)(dm);
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for (i = 0; i < ccb->cdm.num_matches; i++) {
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dm18[i].type = dm[i].type;
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switch (dm[i].type) {
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case DEV_MATCH_PERIPH:
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memcpy(&dm18[i].result.periph_result.periph_name,
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&dm[i].result.periph_result.periph_name,
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DEV_IDLEN);
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dm18[i].result.periph_result.unit_number =
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dm[i].result.periph_result.unit_number;
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dm18[i].result.periph_result.path_id =
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dm[i].result.periph_result.path_id;
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dm18[i].result.periph_result.target_id =
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dm[i].result.periph_result.target_id;
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dm18[i].result.periph_result.target_lun =
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dm[i].result.periph_result.target_lun;
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break;
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case DEV_MATCH_DEVICE:
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dm18[i].result.device_result.path_id =
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dm[i].result.device_result.path_id;
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dm18[i].result.device_result.target_id =
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dm[i].result.device_result.target_id;
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dm18[i].result.device_result.target_lun =
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dm[i].result.device_result.target_lun;
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dm18[i].result.device_result.protocol =
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dm[i].result.device_result.protocol;
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memcpy(&dm18[i].result.device_result.inq_data,
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&dm[i].result.device_result.inq_data,
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sizeof(struct scsi_inquiry_data));
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memcpy(&dm18[i].result.device_result.ident_data,
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&dm[i].result.device_result.ident_data,
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sizeof(struct ata_params));
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dm18[i].result.device_result.flags =
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dm[i].result.device_result.flags;
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break;
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case DEV_MATCH_BUS:
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memcpy(&dm18[i].result.bus_result,
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&dm[i].result.bus_result,
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sizeof(struct bus_match_result));
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break;
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}
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}
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cam_periph_unmapmem(ccb, &mapinfo);
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return (0);
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}
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