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freebsd-skq/sys/dev/twa/tw_osl_cam.c

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/*
* Copyright (c) 2004-05 Applied Micro Circuits Corporation.
* Copyright (c) 2004-05 Vinod Kashyap.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
/*
* AMCC'S 3ware driver for 9000 series storage controllers.
*
* Author: Vinod Kashyap
*/
/*
* FreeBSD CAM related functions.
*/
#include "tw_osl_includes.h"
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_sim.h>
#include <cam/cam_xpt_sim.h>
#include <cam/cam_xpt_periph.h>
#include <cam/cam_debug.h>
#include <cam/cam_periph.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_message.h>
static TW_VOID twa_action(struct cam_sim *sim, union ccb *ccb);
static TW_VOID twa_poll(struct cam_sim *sim);
static TW_VOID twa_async(TW_VOID *callback_arg, TW_UINT32 code,
struct cam_path *path, TW_VOID *arg);
static TW_VOID twa_timeout(TW_VOID *arg);
static TW_VOID twa_bus_scan_cb(struct cam_periph *periph, union ccb *ccb);
static TW_INT32 tw_osli_execute_scsi(struct tw_osli_req_context *req,
union ccb *ccb);
/*
* Function name: tw_osli_cam_attach
* Description: Attaches the driver to CAM.
*
* Input: sc -- ptr to OSL internal ctlr context
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_osli_cam_attach(struct twa_softc *sc)
{
struct cam_devq *devq;
struct ccb_setasync csa;
TW_INT32 error;
tw_osli_dbg_dprintf(3, sc, "entered");
/*
* Create the device queue for our SIM.
*/
if ((devq = cam_simq_alloc(TW_OSLI_MAX_NUM_IOS)) == NULL) {
tw_osli_printf(sc, "error = %d",
TW_CL_SEVERITY_ERROR_STRING,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2100,
"Failed to create SIM device queue",
ENOMEM);
return(ENOMEM);
}
/*
* Create a SIM entry. Though we can support TW_OSLI_MAX_NUM_IOS
* simultaneous requests, we claim to be able to handle only
* (TW_OSLI_MAX_NUM_IOS - 1), so that we always have a request
* packet available to service ioctls.
*/
tw_osli_dbg_dprintf(3, sc, "Calling cam_sim_alloc");
sc->sim = cam_sim_alloc(twa_action, twa_poll, "twa", sc,
device_get_unit(sc->bus_dev),
TW_OSLI_MAX_NUM_IOS - 1, 1, devq);
if (sc->sim == NULL) {
cam_simq_free(devq);
tw_osli_printf(sc, "error = %d",
TW_CL_SEVERITY_ERROR_STRING,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2101,
"Failed to create a SIM entry",
ENOMEM);
return(ENOMEM);
}
/*
* Register the bus.
*/
tw_osli_dbg_dprintf(3, sc, "Calling xpt_bus_register");
if (xpt_bus_register(sc->sim, 0) != CAM_SUCCESS) {
cam_sim_free(sc->sim, TRUE);
sc->sim = NULL; /* so cam_detach will not try to free it */
tw_osli_printf(sc, "error = %d",
TW_CL_SEVERITY_ERROR_STRING,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2102,
"Failed to register the bus",
ENXIO);
return(ENXIO);
}
tw_osli_dbg_dprintf(3, sc, "Calling xpt_create_path");
if (xpt_create_path(&sc->path, NULL,
cam_sim_path(sc->sim),
CAM_TARGET_WILDCARD,
CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_bus_deregister(cam_sim_path (sc->sim));
/* Passing TRUE to cam_sim_free will free the devq as well. */
cam_sim_free(sc->sim, TRUE);
tw_osli_printf(sc, "error = %d",
TW_CL_SEVERITY_ERROR_STRING,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2103,
"Failed to create path",
ENXIO);
return(ENXIO);
}
tw_osli_dbg_dprintf(3, sc, "Calling xpt_setup_ccb");
xpt_setup_ccb(&csa.ccb_h, sc->path, 5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = AC_FOUND_DEVICE | AC_LOST_DEVICE;
csa.callback = twa_async;
csa.callback_arg = sc;
xpt_action((union ccb *)&csa);
tw_osli_dbg_dprintf(3, sc, "Calling tw_osli_request_bus_scan");
/*
* Request a bus scan, so that CAM gets to know of
* the logical units that we control.
*/
if ((error = tw_osli_request_bus_scan(sc)))
tw_osli_printf(sc, "error = %d",
TW_CL_SEVERITY_ERROR_STRING,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2104,
"Bus scan request to CAM failed",
error);
tw_osli_dbg_dprintf(3, sc, "exiting");
return(0);
}
/*
* Function name: tw_osli_cam_detach
* Description: Detaches the driver from CAM.
*
* Input: sc -- ptr to OSL internal ctlr context
* Output: None
* Return value: None
*/
TW_VOID
tw_osli_cam_detach(struct twa_softc *sc)
{
tw_osli_dbg_dprintf(3, sc, "entered");
mtx_lock(&Giant);
if (sc->path)
xpt_free_path(sc->path);
if (sc->sim) {
xpt_bus_deregister(cam_sim_path(sc->sim));
/* Passing TRUE to cam_sim_free will free the devq as well. */
cam_sim_free(sc->sim, TRUE);
}
mtx_unlock(&Giant);
}
/*
* Function name: tw_osli_execute_scsi
* Description: Build a fw cmd, based on a CAM style ccb, and
* send it down.
*
* Input: req -- ptr to OSL internal request context
* ccb -- ptr to CAM style ccb
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_osli_execute_scsi(struct tw_osli_req_context *req, union ccb *ccb)
{
struct twa_softc *sc = req->ctlr;
struct tw_cl_req_packet *req_pkt;
struct tw_cl_scsi_req_packet *scsi_req;
struct ccb_hdr *ccb_h = &(ccb->ccb_h);
struct ccb_scsiio *csio = &(ccb->csio);
TW_INT32 error;
tw_osli_dbg_dprintf(10, sc, "SCSI I/O request 0x%x",
csio->cdb_io.cdb_bytes[0]);
if (ccb_h->target_id >= TW_CL_MAX_NUM_UNITS) {
tw_osli_dbg_dprintf(3, sc, "Invalid target. PTL = %x %x %x",
ccb_h->path_id, ccb_h->target_id, ccb_h->target_lun);
ccb_h->status |= CAM_TID_INVALID;
xpt_done(ccb);
return(1);
}
if (ccb_h->target_lun >= TW_CL_MAX_NUM_LUNS) {
tw_osli_dbg_dprintf(3, sc, "Invalid lun. PTL = %x %x %x",
ccb_h->path_id, ccb_h->target_id, ccb_h->target_lun);
ccb_h->status |= CAM_LUN_INVALID;
xpt_done(ccb);
return(1);
}
if(ccb_h->flags & CAM_CDB_PHYS) {
tw_osli_printf(sc, "",
TW_CL_SEVERITY_ERROR_STRING,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2105,
"Physical CDB address!");
ccb_h->status = CAM_REQ_CMP_ERR;
xpt_done(ccb);
return(1);
}
/*
* We are going to work on this request. Mark it as enqueued (though
* we don't actually queue it...)
*/
ccb_h->status |= CAM_SIM_QUEUED;
if((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
if(ccb_h->flags & CAM_DIR_IN)
req->flags |= TW_OSLI_REQ_FLAGS_DATA_IN;
else
req->flags |= TW_OSLI_REQ_FLAGS_DATA_OUT;
}
/* Build the CL understood request packet for SCSI cmds. */
req_pkt = &req->req_pkt;
req_pkt->status = 0;
req_pkt->tw_osl_callback = tw_osl_complete_io;
scsi_req = &(req_pkt->gen_req_pkt.scsi_req);
scsi_req->unit = ccb_h->target_id;
scsi_req->lun = ccb_h->target_lun;
scsi_req->sense_len = 0;
scsi_req->sense_data = (TW_UINT8 *)(&csio->sense_data);
scsi_req->scsi_status = 0;
if(ccb_h->flags & CAM_CDB_POINTER)
scsi_req->cdb = csio->cdb_io.cdb_ptr;
else
scsi_req->cdb = csio->cdb_io.cdb_bytes;
scsi_req->cdb_len = csio->cdb_len;
if (!(ccb_h->flags & CAM_DATA_PHYS)) {
/* Virtual data addresses. Need to convert them... */
tw_osli_dbg_dprintf(3, sc,
"XPT_SCSI_IO: Single virtual address!");
if (!(ccb_h->flags & CAM_SCATTER_VALID)) {
if (csio->dxfer_len > TW_CL_MAX_IO_SIZE) {
tw_osli_printf(sc, "size = %d",
TW_CL_SEVERITY_ERROR_STRING,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2106,
"I/O size too big",
csio->dxfer_len);
ccb_h->status = CAM_REQ_TOO_BIG;
xpt_done(ccb);
return(1);
}
if ((req->length = csio->dxfer_len)) {
req->data = csio->data_ptr;
scsi_req->sgl_entries = 1;
}
} else {
tw_osli_printf(sc, "",
TW_CL_SEVERITY_ERROR_STRING,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2107,
"XPT_SCSI_IO: Got SGList");
ccb_h->status = CAM_REQ_CMP_ERR;
xpt_done(ccb);
return(1);
}
} else {
/* Data addresses are physical. */
tw_osli_printf(sc, "",
TW_CL_SEVERITY_ERROR_STRING,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2108,
"XPT_SCSI_IO: Physical data addresses");
ccb_h->status = CAM_REQ_CMP_ERR;
ccb_h->status |= CAM_RELEASE_SIMQ;
ccb_h->status &= ~CAM_SIM_QUEUED;
xpt_done(ccb);
return(1);
}
ccb_h->timeout_ch = timeout(twa_timeout, req,
(ccb_h->timeout * hz) / 1000);
/*
* twa_map_load_data_callback will fill in the SGL,
* and submit the I/O.
*/
error = tw_osli_map_request(req);
return(error);
}
/*
* Function name: twa_action
* Description: Driver entry point for CAM's use.
*
* Input: sim -- sim corresponding to the ctlr
* ccb -- ptr to CAM request
* Output: None
* Return value: None
*/
TW_VOID
twa_action(struct cam_sim *sim, union ccb *ccb)
{
struct twa_softc *sc = (struct twa_softc *)cam_sim_softc(sim);
struct ccb_hdr *ccb_h = &(ccb->ccb_h);
switch (ccb_h->func_code) {
case XPT_SCSI_IO: /* SCSI I/O */
{
struct tw_osli_req_context *req;
if ((sc->state & TW_OSLI_CTLR_STATE_SIMQ_FROZEN) ||
((req = tw_osli_get_request(sc)) == NULL)) {
tw_osli_dbg_dprintf(2, sc,
"simq frozen/Cannot get request pkt.");
/*
* Freeze the simq to maintain ccb ordering. The next
* ccb that gets completed will unfreeze the simq.
*/
tw_osli_disallow_new_requests(sc);
ccb_h->status |= CAM_REQUEUE_REQ;
xpt_done(ccb);
break;
}
req->req_handle.osl_req_ctxt = req;
req->orig_req = ccb;
if (tw_osli_execute_scsi(req, ccb))
tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q);
break;
}
case XPT_ABORT:
tw_osli_dbg_dprintf(2, sc, "Abort request.");
ccb_h->status = CAM_UA_ABORT;
xpt_done(ccb);
break;
case XPT_RESET_BUS:
tw_cl_create_event(&(sc->ctlr_handle), TW_CL_TRUE,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2108, 0x3, TW_CL_SEVERITY_INFO_STRING,
"Received Reset Bus request from CAM",
" ");
if (tw_cl_reset_ctlr(&sc->ctlr_handle)) {
tw_cl_create_event(&(sc->ctlr_handle), TW_CL_TRUE,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2109, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Failed to reset bus",
" ");
ccb_h->status = CAM_REQ_CMP_ERR;
}
else
ccb_h->status = CAM_REQ_CMP;
xpt_done(ccb);
break;
case XPT_SET_TRAN_SETTINGS:
tw_osli_dbg_dprintf(3, sc, "XPT_SET_TRAN_SETTINGS");
/*
* This command is not supported, since it's very specific
* to SCSI, and we are doing ATA.
*/
ccb_h->status = CAM_FUNC_NOTAVAIL;
xpt_done(ccb);
break;
case XPT_GET_TRAN_SETTINGS:
{
struct ccb_trans_settings *cts = &ccb->cts;
tw_osli_dbg_dprintf(3, sc, "XPT_GET_TRAN_SETTINGS");
cts->valid = (CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID);
cts->flags &= ~(CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB);
ccb_h->status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_CALC_GEOMETRY:
tw_osli_dbg_dprintf(3, sc, "XPT_CALC_GEOMETRY");
cam_calc_geometry(&ccb->ccg, 1/* extended */);
xpt_done(ccb);
break;
case XPT_PATH_INQ: /* Path inquiry -- get twa properties */
{
struct ccb_pathinq *path_inq = &ccb->cpi;
tw_osli_dbg_dprintf(3, sc, "XPT_PATH_INQ request");
path_inq->version_num = 1;
path_inq->hba_inquiry = 0;
path_inq->target_sprt = 0;
path_inq->hba_misc = 0;
path_inq->hba_eng_cnt = 0;
path_inq->max_target = TW_CL_MAX_NUM_UNITS;
path_inq->max_lun = TW_CL_MAX_NUM_LUNS - 1;
path_inq->unit_number = cam_sim_unit(sim);
path_inq->bus_id = cam_sim_bus(sim);
path_inq->initiator_id = 12;
path_inq->base_transfer_speed = 100000;
strncpy(path_inq->sim_vid, "FreeBSD", SIM_IDLEN);
strncpy(path_inq->hba_vid, "3ware", HBA_IDLEN);
strncpy(path_inq->dev_name, cam_sim_name(sim), DEV_IDLEN);
ccb_h->status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
default:
tw_osli_dbg_dprintf(3, sc, "func_code = %x", ccb_h->func_code);
ccb_h->status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
}
/*
* Function name: twa_poll
* Description: Driver entry point called when interrupts are not
* available.
*
* Input: sim -- sim corresponding to the controller
* Output: None
* Return value: None
*/
TW_VOID
twa_poll(struct cam_sim *sim)
{
struct twa_softc *sc = (struct twa_softc *)(cam_sim_softc(sim));
tw_osli_dbg_dprintf(3, sc, "entering; sc = %p", sc);
/*
* It's been observed that twa_poll can get called (from
* dashutdown --> xpt_polled_action) even when interrupts are
* active, in which case, the ISR might clear the interrupt,
* leaving the call to tw_cl_interrupt below, no way of determining
* that the response from firmware is ready, resulting in
* tw_cl_deferred_interrupt never getting called. To cover this case,
* we will make the call to tw_cl_deferred_interrupt not dependent
* on the return value from tw_cl_interrupt.
*/
tw_cl_interrupt(&(sc->ctlr_handle));
tw_cl_deferred_interrupt(&(sc->ctlr_handle));
tw_osli_dbg_dprintf(3, sc, "exiting; sc = %p", sc);
}
/*
* Function name: twa_async
* Description: Driver entry point for CAM to notify driver of special
* events. We don't use this for now.
*
* Input: callback_arg -- ptr to per ctlr structure
* code -- code associated with the event
* path -- cam path
* arg --
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
TW_VOID
twa_async(TW_VOID *callback_arg, TW_UINT32 code,
struct cam_path *path, TW_VOID *arg)
{
#ifdef TW_OSL_DEBUG
struct twa_softc *sc = (struct twa_softc *)callback_arg;
#endif /* TW_OSL_DEBUG */
tw_osli_dbg_dprintf(3, sc, "sc = %p, code = %x, path = %p, arg = %p",
sc, code, path, arg);
}
/*
* Function name: twa_timeout
* Description: Driver entry point for being alerted on a request
* timing out.
*
* Input: arg -- ptr to timed out request
* Output: None
* Return value: None
*/
static TW_VOID
twa_timeout(TW_VOID *arg)
{
struct tw_osli_req_context *req =
(struct tw_osli_req_context *)arg;
tw_cl_create_event(&(req->ctlr->ctlr_handle), TW_CL_TRUE,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x210B, 0x1, TW_CL_SEVERITY_ERROR_STRING,
"Request timed out!",
"request = %p", req);
tw_cl_reset_ctlr(&(req->ctlr->ctlr_handle));
}
/*
* Function name: tw_osli_request_bus_scan
* Description: Requests CAM for a scan of the bus.
*
* Input: sc -- ptr to per ctlr structure
* Output: None
* Return value: 0 -- success
* non-zero-- failure
*/
TW_INT32
tw_osli_request_bus_scan(struct twa_softc *sc)
{
struct cam_path *path;
union ccb *ccb;
tw_osli_dbg_dprintf(3, sc, "entering");
if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK)) == NULL)
return(ENOMEM);
bzero(ccb, sizeof(union ccb));
mtx_lock(&Giant);
if (xpt_create_path(&path, xpt_periph, cam_sim_path(sc->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP)
return(EIO);
xpt_setup_ccb(&ccb->ccb_h, path, 5);
ccb->ccb_h.func_code = XPT_SCAN_BUS;
ccb->ccb_h.cbfcnp = twa_bus_scan_cb;
ccb->crcn.flags = CAM_FLAG_NONE;
xpt_action(ccb);
mtx_unlock(&Giant);
return(0);
}
/*
* Function name: twa_bus_scan_cb
* Description: Callback from CAM on a bus scan request.
*
* Input: periph -- we don't use this
* ccb -- bus scan request ccb that we sent to CAM
* Output: None
* Return value: None
*/
static TW_VOID
twa_bus_scan_cb(struct cam_periph *periph, union ccb *ccb)
{
tw_osli_dbg_printf(3, "entering");
if (ccb->ccb_h.status != CAM_REQ_CMP)
printf("cam_scan_callback: failure status = %x\n",
ccb->ccb_h.status);
else
tw_osli_dbg_printf(3, "success");
xpt_free_path(ccb->ccb_h.path);
free(ccb, M_TEMP);
}
/*
* Function name: tw_osli_allow_new_requests
* Description: Sets the appropriate status bits in a ccb such that,
* when the ccb is completed by a call to xpt_done,
* CAM knows that it's ok to unfreeze the flow of new
* requests to this controller, if the flow is frozen.
*
* Input: sc -- ptr to OSL internal ctlr context
* ccb -- ptr to CAM request
* Output: None
* Return value: None
*/
TW_VOID
tw_osli_allow_new_requests(struct twa_softc *sc, TW_VOID *ccb)
{
((union ccb *)(ccb))->ccb_h.status |= CAM_RELEASE_SIMQ;
sc->state &= ~TW_OSLI_CTLR_STATE_SIMQ_FROZEN;
}
/*
* Function name: tw_osli_disallow_new_requests
* Description: Calls the appropriate CAM function, so as to freeze
* the flow of new requests from CAM to this controller.
*
* Input: sc -- ptr to OSL internal ctlr context
* Output: None
* Return value: None
*/
TW_VOID
tw_osli_disallow_new_requests(struct twa_softc *sc)
{
xpt_freeze_simq(sc->sim, 1);
sc->state |= TW_OSLI_CTLR_STATE_SIMQ_FROZEN;
}
/*
* Function name: tw_osl_scan_bus
* Description: CL calls this function to request for a bus scan.
*
* Input: ctlr_handle -- ptr to controller handle
* Output: None
* Return value: None
*/
TW_VOID
tw_osl_scan_bus(struct tw_cl_ctlr_handle *ctlr_handle)
{
struct twa_softc *sc = ctlr_handle->osl_ctlr_ctxt;
TW_INT32 error;
if ((error = tw_osli_request_bus_scan(sc)))
tw_osli_printf(sc, "error = %d",
TW_CL_SEVERITY_ERROR_STRING,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2109,
"Bus scan request to CAM failed",
error);
}
/*
* Function name: tw_osl_complete_io
* Description: Called to complete CAM scsi requests.
*
* Input: req_handle -- ptr to request handle
* Output: None
* Return value: None
*/
TW_VOID
tw_osl_complete_io(struct tw_cl_req_handle *req_handle)
{
struct tw_osli_req_context *req = req_handle->osl_req_ctxt;
struct tw_cl_req_packet *req_pkt =
(struct tw_cl_req_packet *)(&req->req_pkt);
struct tw_cl_scsi_req_packet *scsi_req;
struct twa_softc *sc = req->ctlr;
union ccb *ccb = (union ccb *)(req->orig_req);
tw_osli_dbg_dprintf(10, sc, "entering");
if (req->state != TW_OSLI_REQ_STATE_BUSY)
tw_osli_printf(sc, "request = %p, status = %d",
TW_CL_SEVERITY_ERROR_STRING,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x210A,
"Unposted command completed!!",
req, req->state);
/*
* Remove request from the busy queue. Just mark it complete.
* There's no need to move it into the complete queue as we are
* going to be done with it right now.
*/
req->state = TW_OSLI_REQ_STATE_COMPLETE;
tw_osli_req_q_remove_item(req, TW_OSLI_BUSY_Q);
tw_osli_unmap_request(req);
untimeout(twa_timeout, req, ccb->ccb_h.timeout_ch);
if (req->error_code) {
/* This request never got submitted to the firmware. */
if (req->error_code == EBUSY) {
/*
* Cmd queue is full, or common layer is out
* of resources. Freeze the simq to maintain
* ccb ordering. The next ccb that gets
* completed will unfreeze the simq.
*/
tw_osli_disallow_new_requests(req->ctlr);
ccb->ccb_h.status |= CAM_REQUEUE_REQ;
}
else if (req->error_code == EFBIG)
ccb->ccb_h.status = CAM_REQ_TOO_BIG;
else
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
} else {
scsi_req = &(req_pkt->gen_req_pkt.scsi_req);
if (req_pkt->status == TW_CL_ERR_REQ_SUCCESS)
ccb->ccb_h.status = CAM_REQ_CMP;
else {
if (req_pkt->status & TW_CL_ERR_REQ_INVALID_TARGET)
ccb->ccb_h.status |= CAM_TID_INVALID;
else if (req_pkt->status & TW_CL_ERR_REQ_INVALID_LUN)
ccb->ccb_h.status |= CAM_LUN_INVALID;
else if (req_pkt->status & TW_CL_ERR_REQ_SCSI_ERROR)
ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
else if (req_pkt->status & TW_CL_ERR_REQ_BUS_RESET)
ccb->ccb_h.status |= CAM_SCSI_BUS_RESET;
/*
* If none of the above errors occurred, simply
* mark completion error.
*/
if (ccb->ccb_h.status == 0)
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
if (req_pkt->status & TW_CL_ERR_REQ_AUTO_SENSE_VALID) {
ccb->csio.sense_len = scsi_req->sense_len;
ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
}
}
ccb->csio.scsi_status = scsi_req->scsi_status;
/* If simq is frozen, unfreeze it. */
if (sc->state & TW_OSLI_CTLR_STATE_SIMQ_FROZEN)
tw_osli_allow_new_requests(sc, (TW_VOID *)ccb);
}
ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
xpt_done(ccb);
if (! req->error_code)
/* twa_action will free the request otherwise */
tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q);
}
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