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

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/*
* Copyright (c) 2004-07 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
* Modifications by: Adam Radford
* Modifications by: Manjunath Ranganathaiah
*/
/*
* FreeBSD CAM related functions.
*/
#include <dev/twa/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_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_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;
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);
}
/*
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
* Create a SIM entry. Though we can support TW_OSLI_MAX_NUM_REQUESTS
* simultaneous requests, we claim to be able to handle only
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
* TW_OSLI_MAX_NUM_IOS (two less), so that we always have a request
* packet available to service ioctls and AENs.
*/
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), sc->sim_lock,
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
TW_OSLI_MAX_NUM_IOS, 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");
mtx_lock(sc->sim_lock);
if (xpt_bus_register(sc->sim, sc->bus_dev, 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);
mtx_unlock(sc->sim_lock);
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);
mtx_unlock(sc->sim_lock);
return(ENXIO);
}
mtx_unlock(sc->sim_lock);
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(sc->sim_lock);
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);
}
/* It's ok have 1 hold count while destroying the mutex */
mtx_destroy(sc->sim_lock);
}
/*
* 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!");
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
ccb_h->status = CAM_REQ_INVALID;
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;
ccb_h->status &= ~CAM_SIM_QUEUED;
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");
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
ccb_h->status = CAM_REQ_INVALID;
ccb_h->status &= ~CAM_SIM_QUEUED;
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");
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
ccb_h->status = CAM_REQ_INVALID;
ccb_h->status &= ~CAM_SIM_QUEUED;
xpt_done(ccb);
return(1);
}
req->deadline = tw_osl_get_local_time() + (ccb_h->timeout / 1000);
/*
* twa_map_load_data_callback will fill in the SGL,
* and submit the I/O.
*/
error = tw_osli_map_request(req);
if ((error) && (req->flags & TW_OSLI_REQ_FLAGS_FAILED)) {
req->deadline = 0;
ccb_h->status = CAM_REQ_CMP_ERR;
ccb_h->status &= ~CAM_SIM_QUEUED;
xpt_done(ccb);
}
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;
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
req = tw_osli_get_request(sc);
if (req == NULL) {
tw_osli_dbg_dprintf(2, sc, "Cannot get request pkt.");
/*
* Freeze the simq to maintain ccb ordering. The next
* ccb that gets completed will unfreeze the simq.
*/
ccb_h->status &= ~CAM_SIM_QUEUED;
ccb_h->status |= CAM_REQUEUE_REQ;
xpt_done(ccb);
break;
}
if ((tw_cl_is_reset_needed(&(req->ctlr->ctlr_handle)))) {
ccb_h->status &= ~CAM_SIM_QUEUED;
ccb_h->status |= CAM_REQUEUE_REQ;
xpt_done(ccb);
tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q);
break;
}
req->req_handle.osl_req_ctxt = req;
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
req->req_handle.is_io = TW_CL_TRUE;
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_FALSE,
TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER,
0x2108, 0x3, TW_CL_SEVERITY_INFO_STRING,
"Received Reset Bus request from CAM",
" ");
tw_cl_set_reset_needed(&(sc->ctlr_handle));
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;
struct ccb_trans_settings_scsi *scsi =
&cts->proto_specific.scsi;
struct ccb_trans_settings_spi *spi =
&cts->xport_specific.spi;
cts->protocol = PROTO_SCSI;
cts->protocol_version = SCSI_REV_2;
cts->transport = XPORT_SPI;
cts->transport_version = 2;
spi->valid = CTS_SPI_VALID_DISC;
spi->flags = CTS_SPI_FLAGS_DISC_ENB;
scsi->valid = CTS_SCSI_VALID_TQ;
scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
tw_osli_dbg_dprintf(3, sc, "XPT_GET_TRAN_SETTINGS");
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 = TW_CL_MAX_NUM_UNITS;
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);
path_inq->transport = XPORT_SPI;
path_inq->transport_version = 2;
path_inq->protocol = PROTO_SCSI;
path_inq->protocol_version = SCSI_REV_2;
path_inq->maxio = TW_CL_MAX_IO_SIZE;
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);
tw_cl_interrupt(&(sc->ctlr_handle));
tw_osli_dbg_dprintf(3, sc, "exiting; sc = %p", sc);
}
/*
* 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)
{
union ccb *ccb;
tw_osli_dbg_dprintf(3, sc, "entering");
/* If we get here before sc->sim is initialized, return an error. */
if (!(sc->sim))
return(ENXIO);
MFp4: Large set of CAM inprovements. - Unify bus reset/probe sequence. Whenever bus attached at boot or later, CAM will automatically reset and scan it. It allows to remove duplicate code from many drivers. - Any bus, attached before CAM completed it's boot-time initialization, will equally join to the process, delaying boot if needed. - New kern.cam.boot_delay loader tunable should help controllers that are still unable to register their buses in time (such as slow USB/ PCCard/ CardBus devices), by adding one more event to wait on boot. - To allow synchronization between different CAM levels, concept of requests priorities was extended. Priorities now split between several "run levels". Device can be freezed at specified level, allowing higher priority requests to pass. For example, no payload requests allowed, until PMP driver enable port. ATA XPT negotiate transfer parameters, periph driver configure caching and so on. - Frozen requests are no more counted by request allocation scheduler. It fixes deadlocks, when frozen low priority payload requests occupying slots, required by higher levels to manage theit execution. - Two last changes were holding proper ATA reinitialization and error recovery implementation. Now it is done: SATA controllers and Port Multipliers now implement automatic hot-plug and should correctly recover from timeouts and bus resets. - Improve SCSI error recovery for devices on buses without automatic sense reporting, such as ATAPI or USB. For example, it allows CAM to wait, while CD drive loads disk, instead of immediately return error status. - Decapitalize diagnostic messages and make them more readable and sensible. - Teach PMP driver to limit maximum speed on fan-out ports. - Make boot wait for PMP scan completes, and make rescan more reliable. - Fix pass driver, to return CCB to user level in case of error. - Increase number of retries in cd driver, as device may return several UAs.
2010-01-28 08:41:30 +00:00
if ((ccb = xpt_alloc_ccb()) == NULL)
return(ENOMEM);
mtx_lock(sc->sim_lock);
MFp4: Large set of CAM inprovements. - Unify bus reset/probe sequence. Whenever bus attached at boot or later, CAM will automatically reset and scan it. It allows to remove duplicate code from many drivers. - Any bus, attached before CAM completed it's boot-time initialization, will equally join to the process, delaying boot if needed. - New kern.cam.boot_delay loader tunable should help controllers that are still unable to register their buses in time (such as slow USB/ PCCard/ CardBus devices), by adding one more event to wait on boot. - To allow synchronization between different CAM levels, concept of requests priorities was extended. Priorities now split between several "run levels". Device can be freezed at specified level, allowing higher priority requests to pass. For example, no payload requests allowed, until PMP driver enable port. ATA XPT negotiate transfer parameters, periph driver configure caching and so on. - Frozen requests are no more counted by request allocation scheduler. It fixes deadlocks, when frozen low priority payload requests occupying slots, required by higher levels to manage theit execution. - Two last changes were holding proper ATA reinitialization and error recovery implementation. Now it is done: SATA controllers and Port Multipliers now implement automatic hot-plug and should correctly recover from timeouts and bus resets. - Improve SCSI error recovery for devices on buses without automatic sense reporting, such as ATAPI or USB. For example, it allows CAM to wait, while CD drive loads disk, instead of immediately return error status. - Decapitalize diagnostic messages and make them more readable and sensible. - Teach PMP driver to limit maximum speed on fan-out ports. - Make boot wait for PMP scan completes, and make rescan more reliable. - Fix pass driver, to return CCB to user level in case of error. - Increase number of retries in cd driver, as device may return several UAs.
2010-01-28 08:41:30 +00:00
if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, cam_sim_path(sc->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_free_ccb(ccb);
mtx_unlock(sc->sim_lock);
return(EIO);
}
MFp4: Large set of CAM inprovements. - Unify bus reset/probe sequence. Whenever bus attached at boot or later, CAM will automatically reset and scan it. It allows to remove duplicate code from many drivers. - Any bus, attached before CAM completed it's boot-time initialization, will equally join to the process, delaying boot if needed. - New kern.cam.boot_delay loader tunable should help controllers that are still unable to register their buses in time (such as slow USB/ PCCard/ CardBus devices), by adding one more event to wait on boot. - To allow synchronization between different CAM levels, concept of requests priorities was extended. Priorities now split between several "run levels". Device can be freezed at specified level, allowing higher priority requests to pass. For example, no payload requests allowed, until PMP driver enable port. ATA XPT negotiate transfer parameters, periph driver configure caching and so on. - Frozen requests are no more counted by request allocation scheduler. It fixes deadlocks, when frozen low priority payload requests occupying slots, required by higher levels to manage theit execution. - Two last changes were holding proper ATA reinitialization and error recovery implementation. Now it is done: SATA controllers and Port Multipliers now implement automatic hot-plug and should correctly recover from timeouts and bus resets. - Improve SCSI error recovery for devices on buses without automatic sense reporting, such as ATAPI or USB. For example, it allows CAM to wait, while CD drive loads disk, instead of immediately return error status. - Decapitalize diagnostic messages and make them more readable and sensible. - Teach PMP driver to limit maximum speed on fan-out ports. - Make boot wait for PMP scan completes, and make rescan more reliable. - Fix pass driver, to return CCB to user level in case of error. - Increase number of retries in cd driver, as device may return several UAs.
2010-01-28 08:41:30 +00:00
xpt_rescan(ccb);
mtx_unlock(sc->sim_lock);
return(0);
}
/*
* 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
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
* req_handle -- ptr to request handle sent by OSL.
* Output: None
* Return value: None
*/
TW_VOID
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
tw_osli_disallow_new_requests(struct twa_softc *sc,
struct tw_cl_req_handle *req_handle)
{
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
/* Only freeze/release the simq for IOs */
if (req_handle->is_io) {
struct tw_osli_req_context *req = req_handle->osl_req_ctxt;
union ccb *ccb = (union ccb *)(req->orig_req);
xpt_freeze_simq(sc->sim, 1);
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
}
}
/*
* Function name: tw_osl_timeout
* Description: Call to timeout().
*
* Input: req_handle -- ptr to request handle sent by OSL.
* Output: None
* Return value: None
*/
TW_VOID
tw_osl_timeout(struct tw_cl_req_handle *req_handle)
{
struct tw_osli_req_context *req = req_handle->osl_req_ctxt;
union ccb *ccb = (union ccb *)(req->orig_req);
struct ccb_hdr *ccb_h = &(ccb->ccb_h);
req->deadline = tw_osl_get_local_time() + (ccb_h->timeout / 1000);
}
/*
* Function name: tw_osl_untimeout
* Description: Inverse of call to timeout().
*
* Input: req_handle -- ptr to request handle sent by OSL.
* Output: None
* Return value: None
*/
TW_VOID
tw_osl_untimeout(struct tw_cl_req_handle *req_handle)
{
struct tw_osli_req_context *req = req_handle->osl_req_ctxt;
req->deadline = 0;
}
/*
* 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);
req->deadline = 0;
if (req->error_code) {
/* This request never got submitted to the firmware. */
if (req->error_code == EBUSY) {
/*
* Cmd queue is full, or the Common Layer is out of
Apply driver update from LSI. Many thanks to LSI for continuing to support FreeBSD. 1) Timeout ioctl command timeouts. Do not reset the controller if ioctl command completed successfully. 2) Remove G66_WORKAROUND code (this bug never shipped). 3) Remove unnecessary interrupt lock (intr_lock). 4) Timeout firmware handshake for PChip reset (don't wait forever). 5) Handle interrupts inline. 6) Unmask command interrupt ONLY when adding a command to the pending queue. 7) Mask command interrupt ONLY after removing the last command from the pending queue. 8) Remove TW_OSLI_DEFERRED_INTR_USED code. 9) Replace controller "state" with separate data fields to avoid races: TW_CLI_CTLR_STATE_ACTIVE ctlr->active TW_CLI_CTLR_STATE_INTR_ENABLED ctlr->interrupts_enabled TW_CLI_CTLR_STATE_INTERNAL_REQ_BUSY ctlr->internal_req_busy TW_CLI_CTLR_STATE_GET_MORE_AENS ctlr->get_more_aens TW_CLI_CTLR_STATE_RESET_IN_PROGRESS ctlr->reset_in_progress TW_CLI_CTLR_STATE_RESET_PHASE1_IN_PROGRESS ctlr->reset_phase1_in_progress 10) Fix "req" leak in twa_action() when simq is frozen and req is NOT null. 11) Replace softc "state" with separate data fields to avoid races: TW_OSLI_CTLR_STATE_OPEN sc->open TW_OSLI_CTLR_STATE_SIMQ_FROZEN sc->simq_frozen 12) Fix reference to TW_OSLI_REQ_FLAGS_IN_PROGRESS in tw_osl_complete_passthru() 13) Use correct CAM status values. Change CAM_REQ_CMP_ERR to CAM_REQ_INVALID. Remove use of CAM_RELEASE_SIMQ for physical data addresses. 14) Do not freeze/ release the simq with non I/O commands. When it is appropriate to temporarily freeze the simq with an I/O command use: xpt_freeze_simq(sim, 1); ccb->ccb_h.status |= CAM_RELEASE_SIMQ; otherwise use: xpt_freeze_simq(sim, 1); xpt_release_simq(sim, 1); Submitted by: Tom Couch <tom.couch lsi.com> PR: kern/147695 MFC after: 3 days
2010-06-09 21:40:38 +00:00
* resources. The simq will already have been frozen.
* When this ccb gets completed will unfreeze the simq.
*/
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_REQUEUE_REQ | 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;
}
ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
mtx_lock(sc->sim_lock);
xpt_done(ccb);
mtx_unlock(sc->sim_lock);
if (! req->error_code)
/* twa_action will free the request otherwise */
tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q);
}