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freebsd-skq/sys/dev/mpt/mpt.c
Scott Long b0a2fdee0d Massive overhaul of MPT Fusion driver: 
o Add timeout error recovery (from a thread context to avoid
  the deferral of other critical interrupts).
o Properly recover commands across controller reset events.
o Update the driver to handle events and status codes that
  have been added to the MPI spec since the driver was
  originally written.
o Make the driver more modular to improve maintainability and
  support dynamic "personality" registration (e.g. SCSI Initiator,
  RAID, SAS, FC, etc).
o Shorten and simplify the common I/O path to improve driver
  performance.
o Add RAID volume and RAID member state/settings reporting.
o Add periodic volume resynchronization status reporting.
o Add support for sysctl tunable resync rate, member write cache
  enable, and volume transaction queue depth.

Sponsored by
----------------
Avid Technologies Inc:
	SCSI error recovery, driver re-organization, update of MPI library
	headers, portions of dynamic personality registration, and misc bug
	fixes.

Wheel Open Technologies:
	RAID event notification, RAID member pass-thru support, firmware
	upload/download support, enhanced RAID resync speed, portions
	of dynamic personality registration, and misc bug fixes.

Detailed Changes
================
mpt.c mpt_cam.c mpt_raid.c mpt_pci.c:
o Add support for personality modules.  Each module exports
  load, and unload module scope methods as well as probe, attach,
  event, reset, shutdown, and detach  per-device instance
  methods

mpt.c mpt.h mpt_pci.c:
o The driver now associates a callback function (via an
  index) with every transaction submitted to the controller.
  This allows the main interrupt handler to absolve itself
  of any knowledge of individual transaction/response types
  by simply calling the callback function "registered" for
  the transaction.  We use a callback index instead of a
  callback function pointer in each requests so we can
  properly handle responses (e.g. event notifications)
  that are not associated with a transaction.  Personality
  modules dynamically register their callbacks with the
  driver core to receive the callback index to use for their
  handlers.

o Move the interrupt handler into mpt.c.  The ISR algorithm
  is bus transport and OS independent and thus had no reason
  to be in mpt_pci.c.

o Simplify configuration message reply handling by copying
  reply frame data for the requester and storing completion
  status in the original request structure.

o Add the mpt_complete_request_chain() helper method and use
  it to implement reset handlers that must abort transactions.

o Keep track of all pending requests on the new
  requests_pending_list in the softc.

o Add default handlers to mpt.c to handle generic event
  notifications and controller reset activities.  The event
  handler code is largely the same as in the original driver.
  The reset handler is new and terminates any pending transactions
  with a status code indicating the controller needs to be
  re-initialized.

o Add some endian support to the driver.  A complete audit is
  still required for this driver to have any hope of operating
  in a big-endian environment.

o Use inttypes.h and __inline.  Come closer to being style(9)
  compliant.

o Remove extraneous use of typedefs.

o Convert request state from a strict enumeration to a series
  of flags.  This allows us to, for example, tag transactions
  that have timed-out while retaining the state that the
  transaction is still in-flight on the controller.

o Add mpt_wait_req() which allows a caller to poll or sleep
  for the completion of a request.  Use this to simplify
  and factor code out from many initialization routines.
  We also use this to sleep for task management request
  completions in our CAM timeout handler.

mpt.c:
o Correct a bug in the event handler where request structures were
  freed even if the request reply was marked as a continuation
  reply. Continuation replies indicate that the controller still owns
  the request and freeing these replies prematurely corrupted
  controller state.

o Implement firmware upload and download. On controllers that do
  not have dedicated NVRAM (as in the Sun v20/v40z), the firmware
  image is downloaded to the controller by the system BIOS. This
  image occupies precious controller RAM space until the host driver
  fetches the image, reducing the number of concurrent I/Os the
  controller can processes. The uploaded image is used to
  re-program the controller during hard reset events since the
  controller cannot fetch the firmware on its own. Implementing this
  feature allows much higher queue depths when RAID volumes
  are configured.

o Changed configuration page accessors to allow threads to sleep
  rather than busy wait for completion.

o Removed hard coded data transfer sizes from configuration page
  routines so that RAID configuration page processing is possible.

mpt_reg.h:
o Move controller register definitions into a separate file.

mpt.h:
o Re-arrange includes to allow inlined functions to be
  defined in mpt.h.

o Add reply, event, and reset handler definitions.

o Add softc fields for handling timeout and controller
  reset recovery.

mpt_cam.c:
o Move mpt_freebsd.c to mpt_cam.c.  Move all core functionality,
  such as event handling, into mpt.c leaving only CAM SCSI
  support here.

o Revamp completion handler to provide correct CAM status for
  all currently defined SCSI MPI message result codes.

o Register event and reset handlers with the MPT core.  Modify
  the event handler to notify CAM of bus reset events.  The
  controller reset handler will abort any transactions that
  have timed out.  All other pending CAM transactions are
  correctly aborted by the core driver's reset handler.

o Allocate a single request up front to perform task management
  operations.  This guarantees that we can always perform a
  TMF operation even when the controller is saturated with other
  operations.  The single request also serves as a perfect
  mechanism of guaranteeing that only a single TMF is in flight
  at a time - something that is required according to the MPT
  Fusion documentation.

o Add a helper function for issuing task management requests
  to the controller.  This is used to abort individual requests
  or perform a bus reset.

o Modify the CAM XPT_BUS_RESET ccb handler to wait for and
  properly handle the status of the bus reset task management
  frame used to reset the bus.  The previous code assumed that
  the reset request would always succeed.

o Add timeout recovery support.  When a timeout occurs, the
  timed-out request is added to a queue to be processed by
  our recovery thread and the thread is woken up.  The recovery
  thread processes timed-out command serially, attempting first
  to abort them and then falling back to a bus reset if an
  abort fails.

o Add calls to mpt_reset() to reset the controller if any
  handshake command, bus reset attempt or abort attempt
  fails due to a timeout.

o Export a secondary "bus" to CAM that exposes all volume drive
  members as pass-thru devices, allowing CAM to perform proper
  speed negotiation to hidden devices.

o Add a CAM async event handler tracking the AC_FOUND_DEVICE event.
  Use this to trigger calls to set the per-volume queue depth once
  the volume is fully registered with CAM. This is required to avoid
  hitting firmware limits on volume queue depth.  Exceeding the
  limit causes the firmware to hang.

mpt_cam.h:
o Add several helper functions for interfacing to CAM and
  performing timeout recovery.

mpt_pci.c:
o Disable interrupts on the controller before registering and
  enabling interrupt delivery to the OS.  Otherwise we risk
  receiving interrupts before the driver is ready to receive
  them.

o Make use of compatibility macros that allow the driver to
  be compiled under 4.x and 5.x.

mpt_raid.c:
o Add a per-controller instance RAID thread to perform settings
   changes and query status (minimizes CPU busy wait loops).

o Use a shutdown handler to disable "Member Write Cache Enable"
  (MWCE) setting for RAID arrays set to enable MWCE During Rebuild.

o Change reply handler function signature to allow handlers to defer
  the deletion of reply frames. Use this to allow the event reply
  handler to queue up events that need to be acked if no resources
  are available to immediately ack an event. Queued events are
  processed in mpt_free_request() where resources are freed. This
  avoids a panic on resource shortage.

o Parse and print out RAID controller capabilities during driver probe.

o Define, allocate, and maintain RAID data structures for volumes,
  hidden member physical disks and spare disks.

o Add dynamic sysctls for per-instance setting of the log level, array
  resync rate, array member cache enable, and volume queue depth.

mpt_debug.c:
o Add mpt_lprt and mpt_lprtc for printing diagnostics conditioned on
  a particular log level to aid in tracking down driver issues.

o Add mpt_decode_value() which parses the bits in an integer
  value based on a parsing table (mask, value, name string, tuples).

mpilib/*:
o Update mpi library header files to latest distribution from LSI.

Submitted by: gibbs
Approved by: re
2005-07-10 15:05:39 +00:00

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/*-
* Generic routines for LSI '909 FC adapters.
* FreeBSD Version.
*
* Copyright (c) 2000, 2001 by Greg Ansley
*
* 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 immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*
* Additional Copyright (c) 2002 by Matthew Jacob under same license.
*/
/*
* Copyright (c) 2004, Avid Technology, Inc. and its contributors.
* Copyright (c) 2005, WHEEL Sp. z o.o.
* Copyright (c) 2004, 2005 Justin T. Gibbs
* 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 at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon including
* a substantially similar Disclaimer requirement for further binary
* redistribution.
* 3. Neither the name of the LSI Logic Corporation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
* OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <dev/mpt/mpt.h>
#include <dev/mpt/mpt_cam.h> /* XXX For static handler registration */
#include <dev/mpt/mpt_raid.h> /* XXX For static handler registration */
#include <dev/mpt/mpilib/mpi.h>
#include <dev/mpt/mpilib/mpi_ioc.h>
#include <sys/sysctl.h>
#define MPT_MAX_TRYS 3
#define MPT_MAX_WAIT 300000
static int maxwait_ack = 0;
static int maxwait_int = 0;
static int maxwait_state = 0;
TAILQ_HEAD(, mpt_softc) mpt_tailq = TAILQ_HEAD_INITIALIZER(mpt_tailq);
mpt_reply_handler_t *mpt_reply_handlers[MPT_NUM_REPLY_HANDLERS];
static mpt_reply_handler_t mpt_default_reply_handler;
static mpt_reply_handler_t mpt_config_reply_handler;
static mpt_reply_handler_t mpt_handshake_reply_handler;
static mpt_reply_handler_t mpt_event_reply_handler;
static void mpt_send_event_ack(struct mpt_softc *mpt, request_t *ack_req,
MSG_EVENT_NOTIFY_REPLY *msg, uint32_t context);
static int mpt_soft_reset(struct mpt_softc *mpt);
static void mpt_hard_reset(struct mpt_softc *mpt);
static int mpt_configure_ioc(struct mpt_softc *mpt);
static int mpt_enable_ioc(struct mpt_softc *mpt);
/************************* Personality Module Support *************************/
/*
* We include one extra entry that is guaranteed to be NULL
* to simplify our itterator.
*/
static struct mpt_personality *mpt_personalities[MPT_MAX_PERSONALITIES + 1];
static __inline struct mpt_personality*
mpt_pers_find(struct mpt_softc *, u_int);
static __inline struct mpt_personality*
mpt_pers_find_reverse(struct mpt_softc *, u_int);
static __inline struct mpt_personality *
mpt_pers_find(struct mpt_softc *mpt, u_int start_at)
{
KASSERT(start_at <= MPT_MAX_PERSONALITIES,
("mpt_pers_find: starting position out of range\n"));
while (start_at < MPT_MAX_PERSONALITIES
&& (mpt->mpt_pers_mask & (0x1 << start_at)) == 0) {
start_at++;
}
return (mpt_personalities[start_at]);
}
/*
* Used infrequenstly, so no need to optimize like a forward
* traversal where we use the MAX+1 is guaranteed to be NULL
* trick.
*/
static __inline struct mpt_personality *
mpt_pers_find_reverse(struct mpt_softc *mpt, u_int start_at)
{
while (start_at < MPT_MAX_PERSONALITIES
&& (mpt->mpt_pers_mask & (0x1 << start_at)) == 0) {
start_at--;
}
if (start_at < MPT_MAX_PERSONALITIES)
return (mpt_personalities[start_at]);
return (NULL);
}
#define MPT_PERS_FOREACH(mpt, pers) \
for (pers = mpt_pers_find(mpt, /*start_at*/0); \
pers != NULL; \
pers = mpt_pers_find(mpt, /*start_at*/pers->id+1))
#define MPT_PERS_FOREACH_REVERSE(mpt, pers) \
for (pers = mpt_pers_find_reverse(mpt, MPT_MAX_PERSONALITIES-1);\
pers != NULL; \
pers = mpt_pers_find_reverse(mpt, /*start_at*/pers->id-1))
static mpt_load_handler_t mpt_stdload;
static mpt_probe_handler_t mpt_stdprobe;
static mpt_attach_handler_t mpt_stdattach;
static mpt_event_handler_t mpt_stdevent;
static mpt_reset_handler_t mpt_stdreset;
static mpt_shutdown_handler_t mpt_stdshutdown;
static mpt_detach_handler_t mpt_stddetach;
static mpt_unload_handler_t mpt_stdunload;
static struct mpt_personality mpt_default_personality =
{
.load = mpt_stdload,
.probe = mpt_stdprobe,
.attach = mpt_stdattach,
.event = mpt_stdevent,
.reset = mpt_stdreset,
.shutdown = mpt_stdshutdown,
.detach = mpt_stddetach,
.unload = mpt_stdunload
};
static mpt_load_handler_t mpt_core_load;
static mpt_attach_handler_t mpt_core_attach;
static mpt_reset_handler_t mpt_core_ioc_reset;
static mpt_event_handler_t mpt_core_event;
static mpt_shutdown_handler_t mpt_core_shutdown;
static mpt_shutdown_handler_t mpt_core_detach;
static mpt_unload_handler_t mpt_core_unload;
static struct mpt_personality mpt_core_personality =
{
.name = "mpt_core",
.load = mpt_core_load,
.attach = mpt_core_attach,
.event = mpt_core_event,
.reset = mpt_core_ioc_reset,
.shutdown = mpt_core_shutdown,
.detach = mpt_core_detach,
.unload = mpt_core_unload,
};
/*
* Manual declaration so that DECLARE_MPT_PERSONALITY doesn't need
* ordering information. We want the core to always register FIRST.
* other modules are set to SI_ORDER_SECOND.
*/
static moduledata_t mpt_core_mod = {
"mpt_core", mpt_modevent, &mpt_core_personality
};
DECLARE_MODULE(mpt_core, mpt_core_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
MODULE_VERSION(mpt_core, 1);
#define MPT_PERS_ATACHED(pers, mpt) \
((mpt)->pers_mask & (0x1 << pers->id))
int
mpt_modevent(module_t mod, int type, void *data)
{
struct mpt_personality *pers;
int error;
pers = (struct mpt_personality *)data;
error = 0;
switch (type) {
case MOD_LOAD:
{
mpt_load_handler_t **def_handler;
mpt_load_handler_t **pers_handler;
int i;
for (i = 0; i < MPT_MAX_PERSONALITIES; i++) {
if (mpt_personalities[i] == NULL)
break;
}
if (i >= MPT_MAX_PERSONALITIES) {
error = ENOMEM;
break;
}
pers->id = i;
mpt_personalities[i] = pers;
/* Install standard/noop handlers for any NULL entries. */
def_handler = MPT_PERS_FIRST_HANDLER(&mpt_default_personality);
pers_handler = MPT_PERS_FIRST_HANDLER(pers);
while (pers_handler <= MPT_PERS_LAST_HANDLER(pers)) {
if (*pers_handler == NULL)
*pers_handler = *def_handler;
pers_handler++;
def_handler++;
}
error = (pers->load(pers));
if (error != 0)
mpt_personalities[i] = NULL;
break;
}
case MOD_SHUTDOWN:
break;
case MOD_QUIESCE:
break;
case MOD_UNLOAD:
error = pers->unload(pers);
mpt_personalities[pers->id] = NULL;
break;
default:
error = EINVAL;
break;
}
return (error);
}
int
mpt_stdload(struct mpt_personality *pers)
{
/* Load is always successfull. */
return (0);
}
int
mpt_stdprobe(struct mpt_softc *mpt)
{
/* Probe is always successfull. */
return (0);
}
int
mpt_stdattach(struct mpt_softc *mpt)
{
/* Attach is always successfull. */
return (0);
}
int
mpt_stdevent(struct mpt_softc *mpt, request_t *req, MSG_EVENT_NOTIFY_REPLY *rep)
{
/* Event was not for us. */
return (0);
}
void
mpt_stdreset(struct mpt_softc *mpt, int type)
{
}
void
mpt_stdshutdown(struct mpt_softc *mpt)
{
}
void
mpt_stddetach(struct mpt_softc *mpt)
{
}
int
mpt_stdunload(struct mpt_personality *pers)
{
/* Unload is always successfull. */
return (0);
}
/******************************* Bus DMA Support ******************************/
void
mpt_map_rquest(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct mpt_map_info *map_info;
map_info = (struct mpt_map_info *)arg;
map_info->error = error;
map_info->phys = segs->ds_addr;
}
/**************************** Reply/Event Handling ****************************/
int
mpt_register_handler(struct mpt_softc *mpt, mpt_handler_type type,
mpt_handler_t handler, uint32_t *phandler_id)
{
switch (type) {
case MPT_HANDLER_REPLY:
{
u_int cbi;
u_int free_cbi;
if (phandler_id == NULL)
return (EINVAL);
free_cbi = MPT_HANDLER_ID_NONE;
for (cbi = 0; cbi < MPT_NUM_REPLY_HANDLERS; cbi++) {
/*
* If the same handler is registered multiple
* times, don't error out. Just return the
* index of the original registration.
*/
if (mpt_reply_handlers[cbi] == handler.reply_handler) {
*phandler_id = MPT_CBI_TO_HID(cbi);
return (0);
}
/*
* Fill from the front in the hope that
* all registered handlers consume only a
* single cache line.
*
* We don't break on the first empty slot so
* that the full table is checked to see if
* this handler was previously registered.
*/
if (free_cbi == MPT_HANDLER_ID_NONE
&& (mpt_reply_handlers[cbi]
== mpt_default_reply_handler))
free_cbi = cbi;
}
if (free_cbi == MPT_HANDLER_ID_NONE)
return (ENOMEM);
mpt_reply_handlers[free_cbi] = handler.reply_handler;
*phandler_id = MPT_CBI_TO_HID(free_cbi);
break;
}
default:
mpt_prt(mpt, "mpt_register_handler unknown type %d\n", type);
return (EINVAL);
}
return (0);
}
int
mpt_deregister_handler(struct mpt_softc *mpt, mpt_handler_type type,
mpt_handler_t handler, uint32_t handler_id)
{
switch (type) {
case MPT_HANDLER_REPLY:
{
u_int cbi;
cbi = MPT_CBI(handler_id);
if (cbi >= MPT_NUM_REPLY_HANDLERS
|| mpt_reply_handlers[cbi] != handler.reply_handler)
return (ENOENT);
mpt_reply_handlers[cbi] = mpt_default_reply_handler;
break;
}
default:
mpt_prt(mpt, "mpt_deregister_handler unknown type %d\n", type);
return (EINVAL);
}
return (0);
}
static int
mpt_default_reply_handler(struct mpt_softc *mpt, request_t *req,
MSG_DEFAULT_REPLY *reply_frame)
{
mpt_prt(mpt, "XXXX Default Handler Called. Req %p, Frame %p\n",
req, reply_frame);
if (reply_frame != NULL)
mpt_dump_reply_frame(mpt, reply_frame);
mpt_prt(mpt, "XXXX Reply Frame Ignored\n");
return (/*free_reply*/TRUE);
}
static int
mpt_config_reply_handler(struct mpt_softc *mpt, request_t *req,
MSG_DEFAULT_REPLY *reply_frame)
{
if (req != NULL) {
if (reply_frame != NULL) {
MSG_CONFIG *cfgp;
MSG_CONFIG_REPLY *reply;
cfgp = (MSG_CONFIG *)req->req_vbuf;
reply = (MSG_CONFIG_REPLY *)reply_frame;
req->IOCStatus = le16toh(reply_frame->IOCStatus);
bcopy(&reply->Header, &cfgp->Header,
sizeof(cfgp->Header));
}
req->state &= ~REQ_STATE_QUEUED;
req->state |= REQ_STATE_DONE;
TAILQ_REMOVE(&mpt->request_pending_list, req, links);
if ((req->state & REQ_STATE_NEED_WAKEUP) != 0)
wakeup(req);
}
return (/*free_reply*/TRUE);
}
static int
mpt_handshake_reply_handler(struct mpt_softc *mpt, request_t *req,
MSG_DEFAULT_REPLY *reply_frame)
{
/* Nothing to be done. */
return (/*free_reply*/TRUE);
}
static int
mpt_event_reply_handler(struct mpt_softc *mpt, request_t *req,
MSG_DEFAULT_REPLY *reply_frame)
{
int free_reply;
if (reply_frame == NULL) {
mpt_prt(mpt, "Event Handler: req %p - Unexpected NULL reply\n");
return (/*free_reply*/TRUE);
}
free_reply = TRUE;
switch (reply_frame->Function) {
case MPI_FUNCTION_EVENT_NOTIFICATION:
{
MSG_EVENT_NOTIFY_REPLY *msg;
struct mpt_personality *pers;
u_int handled;
handled = 0;
msg = (MSG_EVENT_NOTIFY_REPLY *)reply_frame;
MPT_PERS_FOREACH(mpt, pers)
handled += pers->event(mpt, req, msg);
if (handled == 0)
mpt_prt(mpt,
"Unhandled Event Notify Frame. Event %#x.\n",
msg->Event);
if (msg->AckRequired) {
request_t *ack_req;
uint32_t context;
context = htole32(req->index|MPT_REPLY_HANDLER_EVENTS);
ack_req = mpt_get_request(mpt, /*sleep_ok*/FALSE);
if (ack_req == NULL) {
struct mpt_evtf_record *evtf;
evtf = (struct mpt_evtf_record *)reply_frame;
evtf->context = context;
LIST_INSERT_HEAD(&mpt->ack_frames, evtf, links);
free_reply = FALSE;
break;
}
mpt_send_event_ack(mpt, ack_req, msg, context);
}
break;
}
case MPI_FUNCTION_PORT_ENABLE:
mpt_lprt(mpt, MPT_PRT_DEBUG, "enable port reply\n");
break;
case MPI_FUNCTION_EVENT_ACK:
break;
default:
mpt_prt(mpt, "Unknown Event Function: %x\n",
reply_frame->Function);
break;
}
if (req != NULL
&& (reply_frame->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY) == 0) {
req->state &= ~REQ_STATE_QUEUED;
req->state |= REQ_STATE_DONE;
TAILQ_REMOVE(&mpt->request_pending_list, req, links);
if ((req->state & REQ_STATE_NEED_WAKEUP) != 0)
wakeup(req);
else
mpt_free_request(mpt, req);
}
return (free_reply);
}
/*
* Process an asynchronous event from the IOC.
*/
static int
mpt_core_event(struct mpt_softc *mpt, request_t *req,
MSG_EVENT_NOTIFY_REPLY *msg)
{
switch(msg->Event & 0xFF) {
case MPI_EVENT_NONE:
break;
case MPI_EVENT_LOG_DATA:
{
int i;
/* Some error occured that LSI wants logged */
mpt_prt(mpt, "EvtLogData: IOCLogInfo: 0x%08x\n",
msg->IOCLogInfo);
mpt_prt(mpt, "\tEvtLogData: Event Data:");
for (i = 0; i < msg->EventDataLength; i++)
mpt_prtc(mpt, " %08x", msg->Data[i]);
mpt_prtc(mpt, "\n");
break;
}
case MPI_EVENT_EVENT_CHANGE:
/*
* This is just an acknowledgement
* of our mpt_send_event_request.
*/
break;
default:
return (/*handled*/0);
break;
}
return (/*handled*/1);
}
static void
mpt_send_event_ack(struct mpt_softc *mpt, request_t *ack_req,
MSG_EVENT_NOTIFY_REPLY *msg, uint32_t context)
{
MSG_EVENT_ACK *ackp;
ackp = (MSG_EVENT_ACK *)ack_req->req_vbuf;
bzero(ackp, sizeof *ackp);
ackp->Function = MPI_FUNCTION_EVENT_ACK;
ackp->Event = msg->Event;
ackp->EventContext = msg->EventContext;
ackp->MsgContext = context;
mpt_check_doorbell(mpt);
mpt_send_cmd(mpt, ack_req);
}
/***************************** Interrupt Handling *****************************/
void
mpt_intr(void *arg)
{
struct mpt_softc *mpt;
uint32_t reply_desc;
mpt = (struct mpt_softc *)arg;
while ((reply_desc = mpt_pop_reply_queue(mpt)) != MPT_REPLY_EMPTY) {
request_t *req;
MSG_DEFAULT_REPLY *reply_frame;
uint32_t reply_baddr;
u_int cb_index;
u_int req_index;
int free_rf;
req = NULL;
reply_frame = NULL;
reply_baddr = 0;
if ((reply_desc & MPI_ADDRESS_REPLY_A_BIT) != 0) {
u_int offset;
/*
* Insure that the reply frame is coherent.
*/
reply_baddr = (reply_desc << 1);
offset = reply_baddr - (mpt->reply_phys & 0xFFFFFFFF);
bus_dmamap_sync_range(mpt->reply_dmat, mpt->reply_dmap,
offset, MPT_REPLY_SIZE,
BUS_DMASYNC_POSTREAD);
reply_frame = MPT_REPLY_OTOV(mpt, offset);
reply_desc = le32toh(reply_frame->MsgContext);
}
cb_index = MPT_CONTEXT_TO_CBI(reply_desc);
req_index = MPT_CONTEXT_TO_REQI(reply_desc);
if (req_index < MPT_MAX_REQUESTS(mpt))
req = &mpt->request_pool[req_index];
free_rf = mpt_reply_handlers[cb_index](mpt, req, reply_frame);
if (reply_frame != NULL && free_rf)
mpt_free_reply(mpt, reply_baddr);
}
}
/******************************* Error Recovery *******************************/
void
mpt_complete_request_chain(struct mpt_softc *mpt, struct req_queue *chain,
u_int iocstatus)
{
MSG_DEFAULT_REPLY ioc_status_frame;
request_t *req;
bzero(&ioc_status_frame, sizeof(ioc_status_frame));
ioc_status_frame.MsgLength = roundup2(sizeof(ioc_status_frame), 4);
ioc_status_frame.IOCStatus = iocstatus;
while((req = TAILQ_FIRST(chain)) != NULL) {
MSG_REQUEST_HEADER *msg_hdr;
u_int cb_index;
msg_hdr = (MSG_REQUEST_HEADER *)req->req_vbuf;
ioc_status_frame.Function = msg_hdr->Function;
ioc_status_frame.MsgContext = msg_hdr->MsgContext;
cb_index = MPT_CONTEXT_TO_CBI(le32toh(msg_hdr->MsgContext));
mpt_reply_handlers[cb_index](mpt, req, &ioc_status_frame);
}
}
/********************************* Diagnostics ********************************/
/*
* Perform a diagnostic dump of a reply frame.
*/
void
mpt_dump_reply_frame(struct mpt_softc *mpt, MSG_DEFAULT_REPLY *reply_frame)
{
mpt_prt(mpt, "Address Reply:\n");
mpt_print_reply(reply_frame);
}
/******************************* Doorbell Access ******************************/
static __inline uint32_t mpt_rd_db(struct mpt_softc *mpt);
static __inline uint32_t mpt_rd_intr(struct mpt_softc *mpt);
static __inline uint32_t
mpt_rd_db(struct mpt_softc *mpt)
{
return mpt_read(mpt, MPT_OFFSET_DOORBELL);
}
static __inline uint32_t
mpt_rd_intr(struct mpt_softc *mpt)
{
return mpt_read(mpt, MPT_OFFSET_INTR_STATUS);
}
/* Busy wait for a door bell to be read by IOC */
static int
mpt_wait_db_ack(struct mpt_softc *mpt)
{
int i;
for (i=0; i < MPT_MAX_WAIT; i++) {
if (!MPT_DB_IS_BUSY(mpt_rd_intr(mpt))) {
maxwait_ack = i > maxwait_ack ? i : maxwait_ack;
return MPT_OK;
}
DELAY(1000);
}
return MPT_FAIL;
}
/* Busy wait for a door bell interrupt */
static int
mpt_wait_db_int(struct mpt_softc *mpt)
{
int i;
for (i=0; i < MPT_MAX_WAIT; i++) {
if (MPT_DB_INTR(mpt_rd_intr(mpt))) {
maxwait_int = i > maxwait_int ? i : maxwait_int;
return MPT_OK;
}
DELAY(100);
}
return MPT_FAIL;
}
/* Wait for IOC to transition to a give state */
void
mpt_check_doorbell(struct mpt_softc *mpt)
{
uint32_t db = mpt_rd_db(mpt);
if (MPT_STATE(db) != MPT_DB_STATE_RUNNING) {
mpt_prt(mpt, "Device not running\n");
mpt_print_db(db);
}
}
/* Wait for IOC to transition to a give state */
static int
mpt_wait_state(struct mpt_softc *mpt, enum DB_STATE_BITS state)
{
int i;
for (i = 0; i < MPT_MAX_WAIT; i++) {
uint32_t db = mpt_rd_db(mpt);
if (MPT_STATE(db) == state) {
maxwait_state = i > maxwait_state ? i : maxwait_state;
return (MPT_OK);
}
DELAY(100);
}
return (MPT_FAIL);
}
/************************* Intialization/Configuration ************************/
static int mpt_download_fw(struct mpt_softc *mpt);
/* Issue the reset COMMAND to the IOC */
static int
mpt_soft_reset(struct mpt_softc *mpt)
{
mpt_lprt(mpt, MPT_PRT_DEBUG, "soft reset\n");
/* Have to use hard reset if we are not in Running state */
if (MPT_STATE(mpt_rd_db(mpt)) != MPT_DB_STATE_RUNNING) {
mpt_prt(mpt, "soft reset failed: device not running\n");
return MPT_FAIL;
}
/* If door bell is in use we don't have a chance of getting
* a word in since the IOC probably crashed in message
* processing. So don't waste our time.
*/
if (MPT_DB_IS_IN_USE(mpt_rd_db(mpt))) {
mpt_prt(mpt, "soft reset failed: doorbell wedged\n");
return MPT_FAIL;
}
/* Send the reset request to the IOC */
mpt_write(mpt, MPT_OFFSET_DOORBELL,
MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET << MPI_DOORBELL_FUNCTION_SHIFT);
if (mpt_wait_db_ack(mpt) != MPT_OK) {
mpt_prt(mpt, "soft reset failed: ack timeout\n");
return MPT_FAIL;
}
/* Wait for the IOC to reload and come out of reset state */
if (mpt_wait_state(mpt, MPT_DB_STATE_READY) != MPT_OK) {
mpt_prt(mpt, "soft reset failed: device did not restart\n");
return MPT_FAIL;
}
return MPT_OK;
}
static int
mpt_enable_diag_mode(struct mpt_softc *mpt)
{
int try;
try = 20;
while (--try) {
if ((mpt_read(mpt, MPT_OFFSET_DIAGNOSTIC) & MPI_DIAG_DRWE) != 0)
break;
/* Enable diagnostic registers */
mpt_write(mpt, MPT_OFFSET_SEQUENCE, 0xFF);
mpt_write(mpt, MPT_OFFSET_SEQUENCE, MPI_WRSEQ_1ST_KEY_VALUE);
mpt_write(mpt, MPT_OFFSET_SEQUENCE, MPI_WRSEQ_2ND_KEY_VALUE);
mpt_write(mpt, MPT_OFFSET_SEQUENCE, MPI_WRSEQ_3RD_KEY_VALUE);
mpt_write(mpt, MPT_OFFSET_SEQUENCE, MPI_WRSEQ_4TH_KEY_VALUE);
mpt_write(mpt, MPT_OFFSET_SEQUENCE, MPI_WRSEQ_5TH_KEY_VALUE);
DELAY(100000);
}
if (try == 0)
return (EIO);
return (0);
}
static void
mpt_disable_diag_mode(struct mpt_softc *mpt)
{
mpt_write(mpt, MPT_OFFSET_SEQUENCE, 0xFFFFFFFF);
}
/* This is a magic diagnostic reset that resets all the ARM
* processors in the chip.
*/
static void
mpt_hard_reset(struct mpt_softc *mpt)
{
int error;
int wait;
uint32_t diagreg;
mpt_lprt(mpt, MPT_PRT_DEBUG, "hard reset\n");
error = mpt_enable_diag_mode(mpt);
if (error) {
mpt_prt(mpt, "WARNING - Could not enter diagnostic mode !\n");
mpt_prt(mpt, "Trying to reset anyway.\n");
}
diagreg = mpt_read(mpt, MPT_OFFSET_DIAGNOSTIC);
/*
* This appears to be a workaround required for some
* firmware or hardware revs.
*/
mpt_write(mpt, MPT_OFFSET_DIAGNOSTIC, diagreg | MPI_DIAG_DISABLE_ARM);
DELAY(1000);
/* Diag. port is now active so we can now hit the reset bit */
mpt_write(mpt, MPT_OFFSET_DIAGNOSTIC, diagreg | MPI_DIAG_RESET_ADAPTER);
/*
* Ensure that the reset has finished. We delay 1ms
* prior to reading the register to make sure the chip
* has sufficiently completed its reset to handle register
* accesses.
*/
wait = 5000;
do {
DELAY(1000);
diagreg = mpt_read(mpt, MPT_OFFSET_DIAGNOSTIC);
} while (--wait && (diagreg & MPI_DIAG_RESET_ADAPTER) == 0);
if (wait == 0) {
mpt_prt(mpt, "WARNING - Failed hard reset! "
"Trying to initialize anyway.\n");
}
/*
* If we have firmware to download, it must be loaded before
* the controller will become operational. Do so now.
*/
if (mpt->fw_image != NULL) {
error = mpt_download_fw(mpt);
if (error) {
mpt_prt(mpt, "WARNING - Firmware Download Failed!\n");
mpt_prt(mpt, "Trying to initialize anyway.\n");
}
}
/*
* Reseting the controller should have disabled write
* access to the diagnostic registers, but disable
* manually to be sure.
*/
mpt_disable_diag_mode(mpt);
}
static void
mpt_core_ioc_reset(struct mpt_softc *mpt, int type)
{
/*
* Complete all pending requests with a status
* appropriate for an IOC reset.
*/
mpt_complete_request_chain(mpt, &mpt->request_pending_list,
MPI_IOCSTATUS_INVALID_STATE);
}
/*
* Reset the IOC when needed. Try software command first then if needed
* poke at the magic diagnostic reset. Note that a hard reset resets
* *both* IOCs on dual function chips (FC929 && LSI1030) as well as
* fouls up the PCI configuration registers.
*/
int
mpt_reset(struct mpt_softc *mpt, int reinit)
{
struct mpt_personality *pers;
int ret;
/* Try a soft reset */
if ((ret = mpt_soft_reset(mpt)) != MPT_OK) {
/* Failed; do a hard reset */
mpt_hard_reset(mpt);
/* Wait for the IOC to reload and come out of reset state */
ret = mpt_wait_state(mpt, MPT_DB_STATE_READY);
if (ret != MPT_OK)
mpt_prt(mpt, "failed to reset device\n");
}
/*
* Invoke reset handlers. We bump the reset count so
* that mpt_wait_req() understands that regardless of
* the specified wait condition, it should stop its wait.
*/
mpt->reset_cnt++;
MPT_PERS_FOREACH(mpt, pers)
pers->reset(mpt, ret);
if (reinit != 0)
mpt_enable_ioc(mpt);
return ret;
}
/* Return a command buffer to the free queue */
void
mpt_free_request(struct mpt_softc *mpt, request_t *req)
{
struct mpt_evtf_record *record;
uint32_t reply_baddr;
if (req == NULL || req != &mpt->request_pool[req->index]) {
panic("mpt_free_request bad req ptr\n");
return;
}
req->ccb = NULL;
req->state = REQ_STATE_FREE;
if (LIST_EMPTY(&mpt->ack_frames)) {
TAILQ_INSERT_HEAD(&mpt->request_free_list, req, links);
if (mpt->getreqwaiter != 0) {
mpt->getreqwaiter = 0;
wakeup(&mpt->request_free_list);
}
return;
}
/*
* Process an ack frame deferred due to resource shortage.
*/
record = LIST_FIRST(&mpt->ack_frames);
LIST_REMOVE(record, links);
mpt_send_event_ack(mpt, req, &record->reply, record->context);
reply_baddr = (uint32_t)((uint8_t *)record - mpt->reply)
+ (mpt->reply_phys & 0xFFFFFFFF);
mpt_free_reply(mpt, reply_baddr);
}
/* Get a command buffer from the free queue */
request_t *
mpt_get_request(struct mpt_softc *mpt, int sleep_ok)
{
request_t *req;
retry:
req = TAILQ_FIRST(&mpt->request_free_list);
if (req != NULL) {
KASSERT(req == &mpt->request_pool[req->index],
("mpt_get_request: corrupted request free list\n"));
TAILQ_REMOVE(&mpt->request_free_list, req, links);
req->state = REQ_STATE_ALLOCATED;
} else if (sleep_ok != 0) {
mpt->getreqwaiter = 1;
mpt_sleep(mpt, &mpt->request_free_list, PUSER, "mptgreq", 0);
goto retry;
}
return req;
}
/* Pass the command to the IOC */
void
mpt_send_cmd(struct mpt_softc *mpt, request_t *req)
{
uint32_t *pReq;
pReq = req->req_vbuf;
mpt_lprt(mpt, MPT_PRT_TRACE, "Send Request %d (0x%x):\n",
req->index, req->req_pbuf);
mpt_lprt(mpt, MPT_PRT_TRACE, "%08x %08x %08x %08x\n",
pReq[0], pReq[1], pReq[2], pReq[3]);
mpt_lprt(mpt, MPT_PRT_TRACE, "%08x %08x %08x %08x\n",
pReq[4], pReq[5], pReq[6], pReq[7]);
mpt_lprt(mpt, MPT_PRT_TRACE, "%08x %08x %08x %08x\n",
pReq[8], pReq[9], pReq[10], pReq[11]);
mpt_lprt(mpt, MPT_PRT_TRACE, "%08x %08x %08x %08x\n",
pReq[12], pReq[13], pReq[14], pReq[15]);
bus_dmamap_sync(mpt->request_dmat, mpt->request_dmap,
BUS_DMASYNC_PREWRITE);
req->state |= REQ_STATE_QUEUED;
TAILQ_INSERT_HEAD(&mpt->request_pending_list, req, links);
mpt_write(mpt, MPT_OFFSET_REQUEST_Q, (uint32_t) req->req_pbuf);
}
/*
* Wait for a request to complete.
*
* Inputs:
* mpt softc of controller executing request
* req request to wait for
* sleep_ok nonzero implies may sleep in this context
* time_ms timeout in ms. 0 implies no timeout.
*
* Return Values:
* 0 Request completed
* non-0 Timeout fired before request completion.
*/
int
mpt_wait_req(struct mpt_softc *mpt, request_t *req,
mpt_req_state_t state, mpt_req_state_t mask,
int sleep_ok, int time_ms)
{
int error;
int timeout;
u_int saved_cnt;
/*
* timeout is in ms. 0 indicates infinite wait.
* Convert to ticks or 500us units depending on
* our sleep mode.
*/
if (sleep_ok != 0)
timeout = (time_ms * hz) / 1000;
else
timeout = time_ms * 2;
saved_cnt = mpt->reset_cnt;
req->state |= REQ_STATE_NEED_WAKEUP;
mask &= ~REQ_STATE_NEED_WAKEUP;
while ((req->state & mask) != state
&& mpt->reset_cnt == saved_cnt) {
if (sleep_ok != 0) {
error = mpt_sleep(mpt, req, PUSER, "mptreq", timeout);
if (error == EWOULDBLOCK) {
timeout = 0;
break;
}
} else {
if (time_ms != 0 && --timeout == 0) {
mpt_prt(mpt, "mpt_wait_req timed out\n");
break;
}
DELAY(500);
mpt_intr(mpt);
}
}
req->state &= ~REQ_STATE_NEED_WAKEUP;
if (mpt->reset_cnt != saved_cnt)
return (EIO);
if (time_ms && timeout == 0)
return (ETIMEDOUT);
return (0);
}
/*
* Send a command to the IOC via the handshake register.
*
* Only done at initialization time and for certain unusual
* commands such as device/bus reset as specified by LSI.
*/
int
mpt_send_handshake_cmd(struct mpt_softc *mpt, size_t len, void *cmd)
{
int i;
uint32_t data, *data32;
/* Check condition of the IOC */
data = mpt_rd_db(mpt);
if ((MPT_STATE(data) != MPT_DB_STATE_READY
&& MPT_STATE(data) != MPT_DB_STATE_RUNNING
&& MPT_STATE(data) != MPT_DB_STATE_FAULT)
|| MPT_DB_IS_IN_USE(data)) {
mpt_prt(mpt, "handshake aborted - invalid doorbell state\n");
mpt_print_db(data);
return (EBUSY);
}
/* We move things in 32 bit chunks */
len = (len + 3) >> 2;
data32 = cmd;
/* Clear any left over pending doorbell interupts */
if (MPT_DB_INTR(mpt_rd_intr(mpt)))
mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
/*
* Tell the handshake reg. we are going to send a command
* and how long it is going to be.
*/
data = (MPI_FUNCTION_HANDSHAKE << MPI_DOORBELL_FUNCTION_SHIFT) |
(len << MPI_DOORBELL_ADD_DWORDS_SHIFT);
mpt_write(mpt, MPT_OFFSET_DOORBELL, data);
/* Wait for the chip to notice */
if (mpt_wait_db_int(mpt) != MPT_OK) {
mpt_prt(mpt, "mpt_send_handshake_cmd timeout1\n");
return (ETIMEDOUT);
}
/* Clear the interrupt */
mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
if (mpt_wait_db_ack(mpt) != MPT_OK) {
mpt_prt(mpt, "mpt_send_handshake_cmd timeout2\n");
return (ETIMEDOUT);
}
/* Send the command */
for (i = 0; i < len; i++) {
mpt_write(mpt, MPT_OFFSET_DOORBELL, *data32++);
if (mpt_wait_db_ack(mpt) != MPT_OK) {
mpt_prt(mpt,
"mpt_send_handshake_cmd timeout! index = %d\n",
i);
return (ETIMEDOUT);
}
}
return MPT_OK;
}
/* Get the response from the handshake register */
int
mpt_recv_handshake_reply(struct mpt_softc *mpt, size_t reply_len, void *reply)
{
int left, reply_left;
u_int16_t *data16;
MSG_DEFAULT_REPLY *hdr;
/* We move things out in 16 bit chunks */
reply_len >>= 1;
data16 = (u_int16_t *)reply;
hdr = (MSG_DEFAULT_REPLY *)reply;
/* Get first word */
if (mpt_wait_db_int(mpt) != MPT_OK) {
mpt_prt(mpt, "mpt_recv_handshake_cmd timeout1\n");
return ETIMEDOUT;
}
*data16++ = mpt_read(mpt, MPT_OFFSET_DOORBELL) & MPT_DB_DATA_MASK;
mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
/* Get Second Word */
if (mpt_wait_db_int(mpt) != MPT_OK) {
mpt_prt(mpt, "mpt_recv_handshake_cmd timeout2\n");
return ETIMEDOUT;
}
*data16++ = mpt_read(mpt, MPT_OFFSET_DOORBELL) & MPT_DB_DATA_MASK;
mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
/* With the second word, we can now look at the length */
if (((reply_len >> 1) != hdr->MsgLength)) {
mpt_prt(mpt, "reply length does not match message length: "
"got 0x%02x, expected 0x%02x\n",
hdr->MsgLength << 2, reply_len << 1);
}
/* Get rest of the reply; but don't overflow the provided buffer */
left = (hdr->MsgLength << 1) - 2;
reply_left = reply_len - 2;
while (left--) {
u_int16_t datum;
if (mpt_wait_db_int(mpt) != MPT_OK) {
mpt_prt(mpt, "mpt_recv_handshake_cmd timeout3\n");
return ETIMEDOUT;
}
datum = mpt_read(mpt, MPT_OFFSET_DOORBELL);
if (reply_left-- > 0)
*data16++ = datum & MPT_DB_DATA_MASK;
mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
}
/* One more wait & clear at the end */
if (mpt_wait_db_int(mpt) != MPT_OK) {
mpt_prt(mpt, "mpt_recv_handshake_cmd timeout4\n");
return ETIMEDOUT;
}
mpt_write(mpt, MPT_OFFSET_INTR_STATUS, 0);
if ((hdr->IOCStatus & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
if (mpt->verbose >= MPT_PRT_TRACE)
mpt_print_reply(hdr);
return (MPT_FAIL | hdr->IOCStatus);
}
return (0);
}
static int
mpt_get_iocfacts(struct mpt_softc *mpt, MSG_IOC_FACTS_REPLY *freplp)
{
MSG_IOC_FACTS f_req;
int error;
bzero(&f_req, sizeof f_req);
f_req.Function = MPI_FUNCTION_IOC_FACTS;
f_req.MsgContext = htole32(MPT_REPLY_HANDLER_HANDSHAKE);
error = mpt_send_handshake_cmd(mpt, sizeof f_req, &f_req);
if (error)
return(error);
error = mpt_recv_handshake_reply(mpt, sizeof (*freplp), freplp);
return (error);
}
static int
mpt_get_portfacts(struct mpt_softc *mpt, MSG_PORT_FACTS_REPLY *freplp)
{
MSG_PORT_FACTS f_req;
int error;
/* XXX: Only getting PORT FACTS for Port 0 */
memset(&f_req, 0, sizeof f_req);
f_req.Function = MPI_FUNCTION_PORT_FACTS;
f_req.MsgContext = htole32(MPT_REPLY_HANDLER_HANDSHAKE);
error = mpt_send_handshake_cmd(mpt, sizeof f_req, &f_req);
if (error)
return(error);
error = mpt_recv_handshake_reply(mpt, sizeof (*freplp), freplp);
return (error);
}
/*
* Send the initialization request. This is where we specify how many
* SCSI busses and how many devices per bus we wish to emulate.
* This is also the command that specifies the max size of the reply
* frames from the IOC that we will be allocating.
*/
static int
mpt_send_ioc_init(struct mpt_softc *mpt, uint32_t who)
{
int error = 0;
MSG_IOC_INIT init;
MSG_IOC_INIT_REPLY reply;
bzero(&init, sizeof init);
init.WhoInit = who;
init.Function = MPI_FUNCTION_IOC_INIT;
if (mpt->is_fc) {
init.MaxDevices = 255;
} else {
init.MaxDevices = 16;
}
init.MaxBuses = 1;
init.ReplyFrameSize = MPT_REPLY_SIZE;
init.MsgContext = htole32(MPT_REPLY_HANDLER_HANDSHAKE);
if ((error = mpt_send_handshake_cmd(mpt, sizeof init, &init)) != 0) {
return(error);
}
error = mpt_recv_handshake_reply(mpt, sizeof reply, &reply);
return (error);
}
/*
* Utiltity routine to read configuration headers and pages
*/
int
mpt_issue_cfg_req(struct mpt_softc *mpt, request_t *req, u_int Action,
u_int PageVersion, u_int PageLength, u_int PageNumber,
u_int PageType, uint32_t PageAddress, bus_addr_t addr,
bus_size_t len, int sleep_ok, int timeout_ms)
{
MSG_CONFIG *cfgp;
SGE_SIMPLE32 *se;
cfgp = req->req_vbuf;
memset(cfgp, 0, sizeof *cfgp);
cfgp->Action = Action;
cfgp->Function = MPI_FUNCTION_CONFIG;
cfgp->Header.PageVersion = PageVersion;
cfgp->Header.PageLength = PageLength;
cfgp->Header.PageNumber = PageNumber;
cfgp->Header.PageType = PageType;
cfgp->PageAddress = PageAddress;
se = (SGE_SIMPLE32 *)&cfgp->PageBufferSGE;
se->Address = addr;
MPI_pSGE_SET_LENGTH(se, len);
MPI_pSGE_SET_FLAGS(se, (MPI_SGE_FLAGS_SIMPLE_ELEMENT |
MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
MPI_SGE_FLAGS_END_OF_LIST |
((Action == MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT
|| Action == MPI_CONFIG_ACTION_PAGE_WRITE_NVRAM)
? MPI_SGE_FLAGS_HOST_TO_IOC : MPI_SGE_FLAGS_IOC_TO_HOST)));
cfgp->MsgContext = htole32(req->index | MPT_REPLY_HANDLER_CONFIG);
mpt_check_doorbell(mpt);
mpt_send_cmd(mpt, req);
return (mpt_wait_req(mpt, req, REQ_STATE_DONE, REQ_STATE_DONE,
sleep_ok, timeout_ms));
}
int
mpt_read_cfg_header(struct mpt_softc *mpt, int PageType, int PageNumber,
uint32_t PageAddress, CONFIG_PAGE_HEADER *rslt,
int sleep_ok, int timeout_ms)
{
request_t *req;
int error;
req = mpt_get_request(mpt, sleep_ok);
if (req == NULL) {
mpt_prt(mpt, "mpt_read_cfg_header: Get request failed!\n");
return (-1);
}
error = mpt_issue_cfg_req(mpt, req, MPI_CONFIG_ACTION_PAGE_HEADER,
/*PageVersion*/0, /*PageLength*/0, PageNumber,
PageType, PageAddress, /*addr*/0, /*len*/0,
sleep_ok, timeout_ms);
if (error != 0) {
mpt_prt(mpt, "read_cfg_header timed out\n");
return (-1);
}
if ((req->IOCStatus & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
mpt_prt(mpt, "mpt_read_cfg_header: Config Info Status %x\n",
req->IOCStatus);
error = -1;
} else {
MSG_CONFIG *cfgp;
cfgp = req->req_vbuf;
bcopy(&cfgp->Header, rslt, sizeof(*rslt));
error = 0;
}
mpt_free_request(mpt, req);
return (error);
}
#define CFG_DATA_OFF 128
int
mpt_read_cfg_page(struct mpt_softc *mpt, int Action, uint32_t PageAddress,
CONFIG_PAGE_HEADER *hdr, size_t len, int sleep_ok,
int timeout_ms)
{
request_t *req;
int error;
req = mpt_get_request(mpt, sleep_ok);
if (req == NULL) {
mpt_prt(mpt, "mpt_read_cfg_page: Get request failed!\n");
return (-1);
}
error = mpt_issue_cfg_req(mpt, req, Action, hdr->PageVersion,
hdr->PageLength, hdr->PageNumber,
hdr->PageType & MPI_CONFIG_PAGETYPE_MASK,
PageAddress, req->req_pbuf + CFG_DATA_OFF,
len, sleep_ok, timeout_ms);
if (error != 0) {
mpt_prt(mpt, "read_cfg_page(%d) timed out\n", Action);
return (-1);
}
if ((req->IOCStatus & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
mpt_prt(mpt, "mpt_read_cfg_page: Config Info Status %x\n",
req->IOCStatus);
mpt_free_request(mpt, req);
return (-1);
}
bus_dmamap_sync(mpt->request_dmat, mpt->request_dmap,
BUS_DMASYNC_POSTREAD);
memcpy(hdr, ((uint8_t *)req->req_vbuf)+CFG_DATA_OFF, len);
mpt_free_request(mpt, req);
return (0);
}
int
mpt_write_cfg_page(struct mpt_softc *mpt, int Action, uint32_t PageAddress,
CONFIG_PAGE_HEADER *hdr, size_t len, int sleep_ok,
int timeout_ms)
{
request_t *req;
u_int hdr_attr;
int error;
hdr_attr = hdr->PageType & MPI_CONFIG_PAGEATTR_MASK;
if (hdr_attr != MPI_CONFIG_PAGEATTR_CHANGEABLE &&
hdr_attr != MPI_CONFIG_PAGEATTR_PERSISTENT) {
mpt_prt(mpt, "page type 0x%x not changeable\n",
hdr->PageType & MPI_CONFIG_PAGETYPE_MASK);
return (-1);
}
hdr->PageType &= MPI_CONFIG_PAGETYPE_MASK,
req = mpt_get_request(mpt, sleep_ok);
if (req == NULL)
return (-1);
memcpy(((caddr_t)req->req_vbuf)+CFG_DATA_OFF, hdr, len);
/* Restore stripped out attributes */
hdr->PageType |= hdr_attr;
error = mpt_issue_cfg_req(mpt, req, Action, hdr->PageVersion,
hdr->PageLength, hdr->PageNumber,
hdr->PageType & MPI_CONFIG_PAGETYPE_MASK,
PageAddress, req->req_pbuf + CFG_DATA_OFF,
len, sleep_ok, timeout_ms);
if (error != 0) {
mpt_prt(mpt, "mpt_write_cfg_page timed out\n");
return (-1);
}
if ((req->IOCStatus & MPI_IOCSTATUS_MASK) != MPI_IOCSTATUS_SUCCESS) {
mpt_prt(mpt, "mpt_write_cfg_page: Config Info Status %x\n",
req->IOCStatus);
mpt_free_request(mpt, req);
return (-1);
}
mpt_free_request(mpt, req);
return (0);
}
/*
* Read IOC configuration information
*/
static int
mpt_read_config_info_ioc(struct mpt_softc *mpt)
{
CONFIG_PAGE_HEADER hdr;
struct mpt_raid_volume *mpt_raid;
int rv;
int i;
size_t len;
rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_IOC,
/*PageNumber*/2, /*PageAddress*/0, &hdr,
/*sleep_ok*/FALSE, /*timeout_ms*/5000);
if (rv)
return (EIO);
mpt_lprt(mpt, MPT_PRT_DEBUG, "IOC Page 2 Header: ver %x, len %x, "
"num %x, type %x\n", hdr.PageVersion,
hdr.PageLength * sizeof(uint32_t),
hdr.PageNumber, hdr.PageType);
len = hdr.PageLength * sizeof(uint32_t);
mpt->ioc_page2 = malloc(len, M_DEVBUF, M_NOWAIT);
if (mpt->ioc_page2 == NULL)
return (ENOMEM);
memset(mpt->ioc_page2, 0, sizeof(*mpt->ioc_page2));
memcpy(&mpt->ioc_page2->Header, &hdr, sizeof(hdr));
rv = mpt_read_cur_cfg_page(mpt, /*PageAddress*/0,
&mpt->ioc_page2->Header, len,
/*sleep_ok*/FALSE, /*timeout_ms*/5000);
if (rv) {
mpt_prt(mpt, "failed to read IOC Page 2\n");
} else if (mpt->ioc_page2->CapabilitiesFlags != 0) {
uint32_t mask;
mpt_prt(mpt, "Capabilities: (");
for (mask = 1; mask != 0; mask <<= 1) {
if ((mpt->ioc_page2->CapabilitiesFlags & mask) == 0)
continue;
switch (mask) {
case MPI_IOCPAGE2_CAP_FLAGS_IS_SUPPORT:
mpt_prtc(mpt, " RAID-0");
break;
case MPI_IOCPAGE2_CAP_FLAGS_IME_SUPPORT:
mpt_prtc(mpt, " RAID-1E");
break;
case MPI_IOCPAGE2_CAP_FLAGS_IM_SUPPORT:
mpt_prtc(mpt, " RAID-1");
break;
case MPI_IOCPAGE2_CAP_FLAGS_SES_SUPPORT:
mpt_prtc(mpt, " SES");
break;
case MPI_IOCPAGE2_CAP_FLAGS_SAFTE_SUPPORT:
mpt_prtc(mpt, " SAFTE");
break;
case MPI_IOCPAGE2_CAP_FLAGS_CROSS_CHANNEL_SUPPORT:
mpt_prtc(mpt, " Multi-Channel-Arrays");
default:
break;
}
}
mpt_prtc(mpt, " )\n");
if ((mpt->ioc_page2->CapabilitiesFlags
& (MPI_IOCPAGE2_CAP_FLAGS_IS_SUPPORT
| MPI_IOCPAGE2_CAP_FLAGS_IME_SUPPORT
| MPI_IOCPAGE2_CAP_FLAGS_IM_SUPPORT)) != 0) {
mpt_prt(mpt, "%d Active Volume%s(%d Max)\n",
mpt->ioc_page2->NumActiveVolumes,
mpt->ioc_page2->NumActiveVolumes != 1
? "s " : " ",
mpt->ioc_page2->MaxVolumes);
mpt_prt(mpt, "%d Hidden Drive Member%s(%d Max)\n",
mpt->ioc_page2->NumActivePhysDisks,
mpt->ioc_page2->NumActivePhysDisks != 1
? "s " : " ",
mpt->ioc_page2->MaxPhysDisks);
}
}
len = mpt->ioc_page2->MaxVolumes * sizeof(struct mpt_raid_volume);
mpt->raid_volumes = malloc(len, M_DEVBUF, M_NOWAIT);
if (mpt->raid_volumes == NULL) {
mpt_prt(mpt, "Could not allocate RAID volume data\n");
} else {
memset(mpt->raid_volumes, 0, len);
}
/*
* Copy critical data out of ioc_page2 so that we can
* safely refresh the page without windows of unreliable
* data.
*/
mpt->raid_max_volumes = mpt->ioc_page2->MaxVolumes;
len = sizeof(*mpt->raid_volumes->config_page)
+ (sizeof(RAID_VOL0_PHYS_DISK)*(mpt->ioc_page2->MaxPhysDisks - 1));
for (i = 0; i < mpt->ioc_page2->MaxVolumes; i++) {
mpt_raid = &mpt->raid_volumes[i];
mpt_raid->config_page = malloc(len, M_DEVBUF, M_NOWAIT);
if (mpt_raid->config_page == NULL) {
mpt_prt(mpt, "Could not allocate RAID page data\n");
break;
}
memset(mpt_raid->config_page, 0, len);
}
mpt->raid_page0_len = len;
len = mpt->ioc_page2->MaxPhysDisks * sizeof(struct mpt_raid_disk);
mpt->raid_disks = malloc(len, M_DEVBUF, M_NOWAIT);
if (mpt->raid_disks == NULL) {
mpt_prt(mpt, "Could not allocate RAID disk data\n");
} else {
memset(mpt->raid_disks, 0, len);
}
mpt->raid_max_disks = mpt->ioc_page2->MaxPhysDisks;
rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_IOC,
/*PageNumber*/3, /*PageAddress*/0, &hdr,
/*sleep_ok*/FALSE, /*timeout_ms*/5000);
if (rv)
return (EIO);
mpt_lprt(mpt, MPT_PRT_DEBUG, "IOC Page 3 Header: %x %x %x %x\n",
hdr.PageVersion, hdr.PageLength, hdr.PageNumber, hdr.PageType);
if (mpt->ioc_page3 != NULL)
free(mpt->ioc_page3, M_DEVBUF);
len = hdr.PageLength * sizeof(uint32_t);
mpt->ioc_page3 = malloc(len, M_DEVBUF, M_NOWAIT);
if (mpt->ioc_page3 == NULL)
return (-1);
memset(mpt->ioc_page3, 0, sizeof(*mpt->ioc_page3));
memcpy(&mpt->ioc_page3->Header, &hdr, sizeof(hdr));
rv = mpt_read_cur_cfg_page(mpt, /*PageAddress*/0,
&mpt->ioc_page3->Header, len,
/*sleep_ok*/FALSE, /*timeout_ms*/5000);
if (rv) {
mpt_prt(mpt, "failed to read IOC Page 3\n");
}
mpt_raid_wakeup(mpt);
return (0);
}
/*
* Read SCSI configuration information
*/
static int
mpt_read_config_info_spi(struct mpt_softc *mpt)
{
int rv, i;
rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 0,
0, &mpt->mpt_port_page0.Header,
/*sleep_ok*/FALSE, /*timeout_ms*/5000);
if (rv)
return (-1);
mpt_lprt(mpt, MPT_PRT_DEBUG,
"SPI Port Page 0 Header: %x %x %x %x\n",
mpt->mpt_port_page0.Header.PageVersion,
mpt->mpt_port_page0.Header.PageLength,
mpt->mpt_port_page0.Header.PageNumber,
mpt->mpt_port_page0.Header.PageType);
rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 1,
0, &mpt->mpt_port_page1.Header,
/*sleep_ok*/FALSE, /*timeout_ms*/5000);
if (rv)
return (-1);
mpt_lprt(mpt, MPT_PRT_DEBUG, "SPI Port Page 1 Header: %x %x %x %x\n",
mpt->mpt_port_page1.Header.PageVersion,
mpt->mpt_port_page1.Header.PageLength,
mpt->mpt_port_page1.Header.PageNumber,
mpt->mpt_port_page1.Header.PageType);
rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_PORT, 2,
/*PageAddress*/0, &mpt->mpt_port_page2.Header,
/*sleep_ok*/FALSE, /*timeout_ms*/5000);
if (rv)
return (-1);
mpt_lprt(mpt, MPT_PRT_DEBUG,
"SPI Port Page 2 Header: %x %x %x %x\n",
mpt->mpt_port_page1.Header.PageVersion,
mpt->mpt_port_page1.Header.PageLength,
mpt->mpt_port_page1.Header.PageNumber,
mpt->mpt_port_page1.Header.PageType);
for (i = 0; i < 16; i++) {
rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_DEVICE,
0, i, &mpt->mpt_dev_page0[i].Header,
/*sleep_ok*/FALSE, /*timeout_ms*/5000);
if (rv)
return (-1);
mpt_lprt(mpt, MPT_PRT_DEBUG,
"SPI Target %d Device Page 0 Header: %x %x %x %x\n",
i, mpt->mpt_dev_page0[i].Header.PageVersion,
mpt->mpt_dev_page0[i].Header.PageLength,
mpt->mpt_dev_page0[i].Header.PageNumber,
mpt->mpt_dev_page0[i].Header.PageType);
rv = mpt_read_cfg_header(mpt, MPI_CONFIG_PAGETYPE_SCSI_DEVICE,
1, i, &mpt->mpt_dev_page1[i].Header,
/*sleep_ok*/FALSE, /*timeout_ms*/5000);
if (rv)
return (-1);
mpt_lprt(mpt, MPT_PRT_DEBUG,
"SPI Target %d Device Page 1 Header: %x %x %x %x\n",
i, mpt->mpt_dev_page1[i].Header.PageVersion,
mpt->mpt_dev_page1[i].Header.PageLength,
mpt->mpt_dev_page1[i].Header.PageNumber,
mpt->mpt_dev_page1[i].Header.PageType);
}
/*
* At this point, we don't *have* to fail. As long as we have
* valid config header information, we can (barely) lurch
* along.
*/
rv = mpt_read_cur_cfg_page(mpt, /*PageAddress*/0,
&mpt->mpt_port_page0.Header,
sizeof(mpt->mpt_port_page0),
/*sleep_ok*/FALSE, /*timeout_ms*/5000);
if (rv) {
mpt_prt(mpt, "failed to read SPI Port Page 0\n");
} else {
mpt_lprt(mpt, MPT_PRT_DEBUG,
"SPI Port Page 0: Capabilities %x PhysicalInterface %x\n",
mpt->mpt_port_page0.Capabilities,
mpt->mpt_port_page0.PhysicalInterface);
}
rv = mpt_read_cur_cfg_page(mpt, /*PageAddress*/0,
&mpt->mpt_port_page1.Header,
sizeof(mpt->mpt_port_page1),
/*sleep_ok*/FALSE, /*timeout_ms*/5000);
if (rv) {
mpt_prt(mpt, "failed to read SPI Port Page 1\n");
} else {
mpt_lprt(mpt, MPT_PRT_DEBUG,
"SPI Port Page 1: Configuration %x OnBusTimerValue %x\n",
mpt->mpt_port_page1.Configuration,
mpt->mpt_port_page1.OnBusTimerValue);
}
rv = mpt_read_cur_cfg_page(mpt, /*PageAddress*/0,
&mpt->mpt_port_page2.Header,
sizeof(mpt->mpt_port_page2),
/*sleep_ok*/FALSE, /*timeout_ms*/5000);
if (rv) {
mpt_prt(mpt, "failed to read SPI Port Page 2\n");
} else {
mpt_lprt(mpt, MPT_PRT_DEBUG,
"SPI Port Page 2: Flags %x Settings %x\n",
mpt->mpt_port_page2.PortFlags,
mpt->mpt_port_page2.PortSettings);
for (i = 0; i < 16; i++) {
mpt_lprt(mpt, MPT_PRT_DEBUG,
"SPI Port Page 2 Tgt %d: timo %x SF %x Flags %x\n",
i, mpt->mpt_port_page2.DeviceSettings[i].Timeout,
mpt->mpt_port_page2.DeviceSettings[i].SyncFactor,
mpt->mpt_port_page2.DeviceSettings[i].DeviceFlags);
}
}
for (i = 0; i < 16; i++) {
rv = mpt_read_cur_cfg_page(mpt, /*PageAddress*/i,
&mpt->mpt_dev_page0[i].Header,
sizeof(*mpt->mpt_dev_page0),
/*sleep_ok*/FALSE,
/*timeout_ms*/5000);
if (rv) {
mpt_prt(mpt,
"cannot read SPI Tgt %d Device Page 0\n", i);
continue;
}
mpt_lprt(mpt, MPT_PRT_DEBUG,
"SPI Tgt %d Page 0: NParms %x Information %x",
i, mpt->mpt_dev_page0[i].NegotiatedParameters,
mpt->mpt_dev_page0[i].Information);
rv = mpt_read_cur_cfg_page(mpt, /*PageAddress*/i,
&mpt->mpt_dev_page1[i].Header,
sizeof(*mpt->mpt_dev_page1),
/*sleep_ok*/FALSE,
/*timeout_ms*/5000);
if (rv) {
mpt_prt(mpt,
"cannot read SPI Tgt %d Device Page 1\n", i);
continue;
}
mpt_lprt(mpt, MPT_PRT_DEBUG,
"SPI Tgt %d Page 1: RParms %x Configuration %x\n",
i, mpt->mpt_dev_page1[i].RequestedParameters,
mpt->mpt_dev_page1[i].Configuration);
}
return (0);
}
/*
* Validate SPI configuration information.
*
* In particular, validate SPI Port Page 1.
*/
static int
mpt_set_initial_config_spi(struct mpt_softc *mpt)
{
int i, pp1val = ((1 << mpt->mpt_ini_id) << 16) | mpt->mpt_ini_id;
int error;
mpt->mpt_disc_enable = 0xff;
mpt->mpt_tag_enable = 0;
if (mpt->mpt_port_page1.Configuration != pp1val) {
CONFIG_PAGE_SCSI_PORT_1 tmp;
mpt_prt(mpt,
"SPI Port Page 1 Config value bad (%x)- should be %x\n",
mpt->mpt_port_page1.Configuration, pp1val);
tmp = mpt->mpt_port_page1;
tmp.Configuration = pp1val;
error = mpt_write_cur_cfg_page(mpt, /*PageAddress*/0,
&tmp.Header, sizeof(tmp),
/*sleep_ok*/FALSE,
/*timeout_ms*/5000);
if (error)
return (-1);
error = mpt_read_cur_cfg_page(mpt, /*PageAddress*/0,
&tmp.Header, sizeof(tmp),
/*sleep_ok*/FALSE,
/*timeout_ms*/5000);
if (error)
return (-1);
if (tmp.Configuration != pp1val) {
mpt_prt(mpt,
"failed to reset SPI Port Page 1 Config value\n");
return (-1);
}
mpt->mpt_port_page1 = tmp;
}
for (i = 0; i < 16; i++) {
CONFIG_PAGE_SCSI_DEVICE_1 tmp;
tmp = mpt->mpt_dev_page1[i];
tmp.RequestedParameters = 0;
tmp.Configuration = 0;
mpt_lprt(mpt, MPT_PRT_DEBUG,
"Set Tgt %d SPI DevicePage 1 values to %x 0 %x\n",
i, tmp.RequestedParameters, tmp.Configuration);
error = mpt_write_cur_cfg_page(mpt, /*PageAddress*/i,
&tmp.Header, sizeof(tmp),
/*sleep_ok*/FALSE,
/*timeout_ms*/5000);
if (error)
return (-1);
error = mpt_read_cur_cfg_page(mpt, /*PageAddress*/i,
&tmp.Header, sizeof(tmp),
/*sleep_ok*/FALSE,
/*timeout_ms*/5000);
if (error)
return (-1);
mpt->mpt_dev_page1[i] = tmp;
mpt_lprt(mpt, MPT_PRT_DEBUG,
"SPI Tgt %d Page 1: RParm %x Configuration %x\n", i,
mpt->mpt_dev_page1[i].RequestedParameters,
mpt->mpt_dev_page1[i].Configuration);
}
return (0);
}
/*
* Enable IOC port
*/
static int
mpt_send_port_enable(struct mpt_softc *mpt, int port)
{
request_t *req;
MSG_PORT_ENABLE *enable_req;
int error;
req = mpt_get_request(mpt, /*sleep_ok*/FALSE);
if (req == NULL)
return (-1);
enable_req = req->req_vbuf;
bzero(enable_req, sizeof *enable_req);
enable_req->Function = MPI_FUNCTION_PORT_ENABLE;
enable_req->MsgContext = htole32(req->index | MPT_REPLY_HANDLER_CONFIG);
enable_req->PortNumber = port;
mpt_check_doorbell(mpt);
mpt_lprt(mpt, MPT_PRT_DEBUG, "enabling port %d\n", port);
mpt_send_cmd(mpt, req);
error = mpt_wait_req(mpt, req, REQ_STATE_DONE, REQ_STATE_DONE,
/*sleep_ok*/FALSE, /*time_ms*/500);
if (error != 0) {
mpt_prt(mpt, "port enable timed out");
return (-1);
}
mpt_free_request(mpt, req);
return (0);
}
/*
* Enable/Disable asynchronous event reporting.
*
* NB: this is the first command we send via shared memory
* instead of the handshake register.
*/
static int
mpt_send_event_request(struct mpt_softc *mpt, int onoff)
{
request_t *req;
MSG_EVENT_NOTIFY *enable_req;
req = mpt_get_request(mpt, /*sleep_ok*/FALSE);
enable_req = req->req_vbuf;
bzero(enable_req, sizeof *enable_req);
enable_req->Function = MPI_FUNCTION_EVENT_NOTIFICATION;
enable_req->MsgContext = htole32(req->index | MPT_REPLY_HANDLER_EVENTS);
enable_req->Switch = onoff;
mpt_check_doorbell(mpt);
mpt_lprt(mpt, MPT_PRT_DEBUG,
"%sabling async events\n", onoff ? "en" : "dis");
mpt_send_cmd(mpt, req);
return (0);
}
/*
* Un-mask the interupts on the chip.
*/
void
mpt_enable_ints(struct mpt_softc *mpt)
{
/* Unmask every thing except door bell int */
mpt_write(mpt, MPT_OFFSET_INTR_MASK, MPT_INTR_DB_MASK);
}
/*
* Mask the interupts on the chip.
*/
void
mpt_disable_ints(struct mpt_softc *mpt)
{
/* Mask all interrupts */
mpt_write(mpt, MPT_OFFSET_INTR_MASK,
MPT_INTR_REPLY_MASK | MPT_INTR_DB_MASK);
}
static void
mpt_sysctl_attach(struct mpt_softc *mpt)
{
struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(mpt->dev);
struct sysctl_oid *tree = device_get_sysctl_tree(mpt->dev);
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"debug", CTLFLAG_RW, &mpt->verbose, 0,
"Debugging/Verbose level");
}
int
mpt_attach(struct mpt_softc *mpt)
{
int i;
for (i = 0; i < MPT_MAX_PERSONALITIES; i++) {
struct mpt_personality *pers;
int error;
pers = mpt_personalities[i];
if (pers == NULL)
continue;
if (pers->probe(mpt) == 0) {
error = pers->attach(mpt);
if (error != 0) {
mpt_detach(mpt);
return (error);
}
mpt->mpt_pers_mask |= (0x1 << pers->id);
pers->use_count++;
}
}
return (0);
}
int
mpt_shutdown(struct mpt_softc *mpt)
{
struct mpt_personality *pers;
MPT_PERS_FOREACH_REVERSE(mpt, pers)
pers->shutdown(mpt);
mpt_reset(mpt, /*reinit*/FALSE);
return (0);
}
int
mpt_detach(struct mpt_softc *mpt)
{
struct mpt_personality *pers;
MPT_PERS_FOREACH_REVERSE(mpt, pers) {
pers->detach(mpt);
mpt->mpt_pers_mask &= ~(0x1 << pers->id);
pers->use_count--;
}
return (0);
}
int
mpt_core_load(struct mpt_personality *pers)
{
int i;
/*
* Setup core handlers and insert the default handler
* into all "empty slots".
*/
for (i = 0; i < MPT_NUM_REPLY_HANDLERS; i++)
mpt_reply_handlers[i] = mpt_default_reply_handler;
mpt_reply_handlers[MPT_CBI(MPT_REPLY_HANDLER_EVENTS)] =
mpt_event_reply_handler;
mpt_reply_handlers[MPT_CBI(MPT_REPLY_HANDLER_CONFIG)] =
mpt_config_reply_handler;
mpt_reply_handlers[MPT_CBI(MPT_REPLY_HANDLER_HANDSHAKE)] =
mpt_handshake_reply_handler;
return (0);
}
/*
* Initialize per-instance driver data and perform
* initial controller configuration.
*/
int
mpt_core_attach(struct mpt_softc *mpt)
{
int val;
int error;
LIST_INIT(&mpt->ack_frames);
/* Put all request buffers on the free list */
TAILQ_INIT(&mpt->request_pending_list);
TAILQ_INIT(&mpt->request_free_list);
for (val = 0; val < MPT_MAX_REQUESTS(mpt); val++)
mpt_free_request(mpt, &mpt->request_pool[val]);
mpt_sysctl_attach(mpt);
mpt_lprt(mpt, MPT_PRT_DEBUG, "doorbell req = %s\n",
mpt_ioc_diag(mpt_read(mpt, MPT_OFFSET_DOORBELL)));
error = mpt_configure_ioc(mpt);
return (error);
}
void
mpt_core_shutdown(struct mpt_softc *mpt)
{
}
void
mpt_core_detach(struct mpt_softc *mpt)
{
}
int
mpt_core_unload(struct mpt_personality *pers)
{
/* Unload is always successfull. */
return (0);
}
#define FW_UPLOAD_REQ_SIZE \
(sizeof(MSG_FW_UPLOAD) - sizeof(SGE_MPI_UNION) \
+ sizeof(FW_UPLOAD_TCSGE) + sizeof(SGE_SIMPLE32))
static int
mpt_upload_fw(struct mpt_softc *mpt)
{
uint8_t fw_req_buf[FW_UPLOAD_REQ_SIZE];
MSG_FW_UPLOAD_REPLY fw_reply;
MSG_FW_UPLOAD *fw_req;
FW_UPLOAD_TCSGE *tsge;
SGE_SIMPLE32 *sge;
uint32_t flags;
int error;
memset(&fw_req_buf, 0, sizeof(fw_req_buf));
fw_req = (MSG_FW_UPLOAD *)fw_req_buf;
fw_req->ImageType = MPI_FW_UPLOAD_ITYPE_FW_IOC_MEM;
fw_req->Function = MPI_FUNCTION_FW_UPLOAD;
fw_req->MsgContext = htole32(MPT_REPLY_HANDLER_HANDSHAKE);
tsge = (FW_UPLOAD_TCSGE *)&fw_req->SGL;
tsge->DetailsLength = 12;
tsge->Flags = MPI_SGE_FLAGS_TRANSACTION_ELEMENT;
tsge->ImageSize = htole32(mpt->fw_image_size);
sge = (SGE_SIMPLE32 *)(tsge + 1);
flags = (MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER
| MPI_SGE_FLAGS_END_OF_LIST | MPI_SGE_FLAGS_SIMPLE_ELEMENT
| MPI_SGE_FLAGS_32_BIT_ADDRESSING | MPI_SGE_FLAGS_IOC_TO_HOST);
flags <<= MPI_SGE_FLAGS_SHIFT;
sge->FlagsLength = htole32(flags | mpt->fw_image_size);
sge->Address = htole32(mpt->fw_phys);
error = mpt_send_handshake_cmd(mpt, sizeof(fw_req_buf), &fw_req_buf);
if (error)
return(error);
error = mpt_recv_handshake_reply(mpt, sizeof(fw_reply), &fw_reply);
return (error);
}
static void
mpt_diag_outsl(struct mpt_softc *mpt, uint32_t addr,
uint32_t *data, bus_size_t len)
{
uint32_t *data_end;
data_end = data + (roundup2(len, sizeof(uint32_t)) / 4);
mpt_pio_write(mpt, MPT_OFFSET_DIAG_ADDR, addr);
while (data != data_end) {
mpt_pio_write(mpt, MPT_OFFSET_DIAG_DATA, *data);
data++;
}
}
static int
mpt_download_fw(struct mpt_softc *mpt)
{
MpiFwHeader_t *fw_hdr;
int error;
uint32_t ext_offset;
uint32_t data;
mpt_prt(mpt, "Downloading Firmware - Image Size %d\n",
mpt->fw_image_size);
error = mpt_enable_diag_mode(mpt);
if (error != 0) {
mpt_prt(mpt, "Could not enter diagnostic mode!\n");
return (EIO);
}
mpt_write(mpt, MPT_OFFSET_DIAGNOSTIC,
MPI_DIAG_RW_ENABLE|MPI_DIAG_DISABLE_ARM);
fw_hdr = (MpiFwHeader_t *)mpt->fw_image;
mpt_diag_outsl(mpt, fw_hdr->LoadStartAddress, (uint32_t*)fw_hdr,
fw_hdr->ImageSize);
ext_offset = fw_hdr->NextImageHeaderOffset;
while (ext_offset != 0) {
MpiExtImageHeader_t *ext;
ext = (MpiExtImageHeader_t *)((uintptr_t)fw_hdr + ext_offset);
ext_offset = ext->NextImageHeaderOffset;
mpt_diag_outsl(mpt, ext->LoadStartAddress, (uint32_t*)ext,
ext->ImageSize);
}
/* Setup the address to jump to on reset. */
mpt_pio_write(mpt, MPT_OFFSET_DIAG_ADDR, fw_hdr->IopResetRegAddr);
mpt_pio_write(mpt, MPT_OFFSET_DIAG_DATA, fw_hdr->IopResetVectorValue);
/*
* The controller sets the "flash bad" status after attempting
* to auto-boot from flash. Clear the status so that the controller
* will continue the boot process with our newly installed firmware.
*/
mpt_pio_write(mpt, MPT_OFFSET_DIAG_ADDR, MPT_DIAG_MEM_CFG_BASE);
data = mpt_pio_read(mpt, MPT_OFFSET_DIAG_DATA) | MPT_DIAG_MEM_CFG_BADFL;
mpt_pio_write(mpt, MPT_OFFSET_DIAG_ADDR, MPT_DIAG_MEM_CFG_BASE);
mpt_pio_write(mpt, MPT_OFFSET_DIAG_DATA, data);
/*
* Re-enable the processor and clear the boot halt flag.
*/
data = mpt_read(mpt, MPT_OFFSET_DIAGNOSTIC);
data &= ~(MPI_DIAG_PREVENT_IOC_BOOT|MPI_DIAG_DISABLE_ARM);
mpt_write(mpt, MPT_OFFSET_DIAGNOSTIC, data);
mpt_disable_diag_mode(mpt);
return (0);
}
/*
* Allocate/Initialize data structures for the controller. Called
* once at instance startup.
*/
static int
mpt_configure_ioc(struct mpt_softc *mpt)
{
MSG_PORT_FACTS_REPLY pfp;
MSG_IOC_FACTS_REPLY facts;
int try;
int needreset;
needreset = 0;
for (try = 0; try < MPT_MAX_TRYS; try++) {
/*
* No need to reset if the IOC is already in the READY state.
*
* Force reset if initialization failed previously.
* Note that a hard_reset of the second channel of a '929
* will stop operation of the first channel. Hopefully, if the
* first channel is ok, the second will not require a hard
* reset.
*/
if (needreset || (mpt_rd_db(mpt) & MPT_DB_STATE_MASK) !=
MPT_DB_STATE_READY) {
if (mpt_reset(mpt, /*reinit*/FALSE) != MPT_OK)
continue;
}
needreset = 0;
if (mpt_get_iocfacts(mpt, &facts) != MPT_OK) {
mpt_prt(mpt, "mpt_get_iocfacts failed\n");
needreset = 1;
continue;
}
mpt->mpt_global_credits = le16toh(facts.GlobalCredits);
mpt->request_frame_size = le16toh(facts.RequestFrameSize);
mpt_prt(mpt, "MPI Version=%d.%d.%d.%d\n",
le16toh(facts.MsgVersion) >> 8,
le16toh(facts.MsgVersion) & 0xFF,
le16toh(facts.HeaderVersion) >> 8,
le16toh(facts.HeaderVersion) & 0xFF);
mpt_lprt(mpt, MPT_PRT_DEBUG,
"MsgLength=%u IOCNumber = %d\n",
facts.MsgLength, facts.IOCNumber);
mpt_lprt(mpt, MPT_PRT_DEBUG,
"IOCFACTS: GlobalCredits=%d BlockSize=%u "
"Request Frame Size %u\n", mpt->mpt_global_credits,
facts.BlockSize * 8, mpt->request_frame_size * 8);
mpt_lprt(mpt, MPT_PRT_DEBUG,
"IOCFACTS: Num Ports %d, FWImageSize %d, "
"Flags=%#x\n", facts.NumberOfPorts,
le32toh(facts.FWImageSize), facts.Flags);
if ((facts.Flags & MPI_IOCFACTS_FLAGS_FW_DOWNLOAD_BOOT) != 0) {
struct mpt_map_info mi;
int error;
/*
* In some configurations, the IOC's firmware is
* stored in a shared piece of system NVRAM that
* is only accessable via the BIOS. In this
* case, the firmware keeps a copy of firmware in
* RAM until the OS driver retrieves it. Once
* retrieved, we are responsible for re-downloading
* the firmware after any hard-reset.
*/
mpt->fw_image_size = le32toh(facts.FWImageSize);
error = mpt_dma_tag_create(mpt, mpt->parent_dmat,
/*alignment*/1, /*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL,
/*filterarg*/NULL, mpt->fw_image_size,
/*nsegments*/1, /*maxsegsz*/mpt->fw_image_size,
/*flags*/0, &mpt->fw_dmat);
if (error != 0) {
mpt_prt(mpt, "cannot create fw dma tag\n");
return (ENOMEM);
}
error = bus_dmamem_alloc(mpt->fw_dmat,
(void **)&mpt->fw_image, BUS_DMA_NOWAIT,
&mpt->fw_dmap);
if (error != 0) {
mpt_prt(mpt, "cannot allocate fw mem.\n");
bus_dma_tag_destroy(mpt->fw_dmat);
return (ENOMEM);
}
mi.mpt = mpt;
mi.error = 0;
bus_dmamap_load(mpt->fw_dmat, mpt->fw_dmap,
mpt->fw_image, mpt->fw_image_size, mpt_map_rquest,
&mi, 0);
mpt->fw_phys = mi.phys;
error = mpt_upload_fw(mpt);
if (error != 0) {
mpt_prt(mpt, "fw upload failed.\n");
bus_dmamap_unload(mpt->fw_dmat, mpt->fw_dmap);
bus_dmamem_free(mpt->fw_dmat, mpt->fw_image,
mpt->fw_dmap);
bus_dma_tag_destroy(mpt->fw_dmat);
mpt->fw_image = NULL;
return (EIO);
}
}
if (mpt_get_portfacts(mpt, &pfp) != MPT_OK) {
mpt_prt(mpt, "mpt_get_portfacts failed\n");
needreset = 1;
continue;
}
mpt_lprt(mpt, MPT_PRT_DEBUG,
"PORTFACTS: Type %x PFlags %x IID %d MaxDev %d\n",
pfp.PortType, pfp.ProtocolFlags, pfp.PortSCSIID,
pfp.MaxDevices);
mpt->mpt_port_type = pfp.PortType;
mpt->mpt_proto_flags = pfp.ProtocolFlags;
if (pfp.PortType != MPI_PORTFACTS_PORTTYPE_SCSI &&
pfp.PortType != MPI_PORTFACTS_PORTTYPE_FC) {
mpt_prt(mpt, "Unsupported Port Type (%x)\n",
pfp.PortType);
return (ENXIO);
}
if (!(pfp.ProtocolFlags & MPI_PORTFACTS_PROTOCOL_INITIATOR)) {
mpt_prt(mpt, "initiator role unsupported\n");
return (ENXIO);
}
if (pfp.PortType == MPI_PORTFACTS_PORTTYPE_FC) {
mpt->is_fc = 1;
} else {
mpt->is_fc = 0;
}
mpt->mpt_ini_id = pfp.PortSCSIID;
if (mpt_enable_ioc(mpt) != 0) {
mpt_prt(mpt, "Unable to initialize IOC\n");
return (ENXIO);
}
/*
* Read and set up initial configuration information
* (IOC and SPI only for now)
*
* XXX Should figure out what "personalities" are
* available and defer all initialization junk to
* them.
*/
mpt_read_config_info_ioc(mpt);
if (mpt->is_fc == 0) {
if (mpt_read_config_info_spi(mpt)) {
return (EIO);
}
if (mpt_set_initial_config_spi(mpt)) {
return (EIO);
}
}
/* Everything worked */
break;
}
if (try >= MPT_MAX_TRYS) {
mpt_prt(mpt, "failed to initialize IOC");
return (EIO);
}
mpt_lprt(mpt, MPT_PRT_DEBUG, "enabling interrupts\n");
mpt_enable_ints(mpt);
return (0);
}
static int
mpt_enable_ioc(struct mpt_softc *mpt)
{
uint32_t pptr;
int val;
if (mpt_send_ioc_init(mpt, MPT_DB_INIT_HOST) != MPT_OK) {
mpt_prt(mpt, "mpt_send_ioc_init failed\n");
return (EIO);
}
mpt_lprt(mpt, MPT_PRT_DEBUG, "mpt_send_ioc_init ok\n");
if (mpt_wait_state(mpt, MPT_DB_STATE_RUNNING) != MPT_OK) {
mpt_prt(mpt, "IOC failed to go to run state\n");
return (ENXIO);
}
mpt_lprt(mpt, MPT_PRT_DEBUG, "IOC now at RUNSTATE");
/*
* Give it reply buffers
*
* Do *not* exceed global credits.
*/
for (val = 0, pptr = mpt->reply_phys;
(pptr + MPT_REPLY_SIZE) < (mpt->reply_phys + PAGE_SIZE);
pptr += MPT_REPLY_SIZE) {
mpt_free_reply(mpt, pptr);
if (++val == mpt->mpt_global_credits - 1)
break;
}
/*
* Enable asynchronous event reporting
*/
mpt_send_event_request(mpt, 1);
/*
* Now enable the port
*/
if (mpt_send_port_enable(mpt, 0) != MPT_OK) {
mpt_prt(mpt, "failed to enable port 0\n");
return (ENXIO);
}
mpt_lprt(mpt, MPT_PRT_DEBUG, "enabled port 0\n");
return (0);
}
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