mpr(4), mps(4): Stop checking for failures from malloc(M_WAITOK).
Centralize compatability translation macros. Copy the CP, PTRIN, etc macros from freebsd32.h into a sys/abi_compat.h and replace existing definitation with includes where required. This eliminates duplicate code and allows Linux and FreeBSD compatability headers to be included in the same files. Obtained from: CheriBSD Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D24275
was branched.
MFC r341755,r342354,r342355,r342386,r342387,r342388,r342526,r342528,
r342530,r342531,r342533,r342534,r342535,r342536,r342659,r345479,
r345485,r345573,r347237,r349849,r349909:
r341755:
Copy and clear the reply descriptor atomically. This prevents concurrency
in the interrupt handlers (usually due to timeout/error recovery) from
seeing and processing the same descriptor twice.
r342354:
mps(4), mpr(4): Fix lifetime of command buffer for mp?sas_get_sata_identify
r342355:
mps(4), mpr(4): remove SATA ID command cancellation hack
r342386:
First step in refactoring and fixing the error recovery and task management
code in the mpr and mps drivers. Eliminate duplicated code and fix some
comments.
r342387:
Commands for user-initated device resets should come from the high-priority
allocator. Prior to this change, they would leak from the normal
allocator.
r342388:
Further refactoring for task management commands. Also fix a related typo
from the previous commit.
r342526:
Update MPI header files version to 2.00.52 from 2.00.48
r342528:
Copy back the Sense data at proper location expected by the application
r342530:
Added support for NVMe Task Management
r342531:
Add Sea,Aero adapter support
r342533:
Enable atomic type descriptor support only for Sea & Aero cards
r342534:
On Aero/Sea A0 cards retry MPT Fusion registers reads for max three times
r342535:
Update copyright information
r342536:
Update mpr driver version to v23.00.00.00-fbsd
r342659:
Fix whitespace from r342528
r345479:
r329522 created problemss with commands that enter the TIMEDOUT state but
are successfully returned by the card (usually due to an abort being issued
as part of timeout recovery). Remove what amounts to an insufficient
KASSERT, and don't overwrite the state value. State should probably be
re-designed, and that will be done with a future commit.
r345485:
Add event table decoding for SAS Broadcast Primitive events.
r345573:
Add missing break statements. Coverity CID 1400446.
r347237:
Add missing newline to debug printf.
r349849:
Fix bugs in recovery path and improve cm tracking
r349909:
More fully implement the state machine.
Sponsored by: Netflix, Inc
opt_compat.h is mentioned in nearly 180 files. In-progress network driver compabibility improvements may add over 100 more so this is closer to "just about everywhere" than "only some files" per the guidance in sys/conf/options. Keep COMPAT_LINUX32 in opt_compat.h as it is confined to a subset of sys/compat/linux/*.c. A fake _COMPAT_LINUX option ensure opt_compat.h is created on all architectures. Move COMPAT_LINUXKPI to opt_dontuse.h as it is only used to control the set of compiled files. Reviewed by: kib, cem, jhb, jtl Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14941
Version 16 is just a number bump, since we already had those changes. Version 17 introduces new AdapterType value, that allows new user-space tools from Broadcom to differentiate adapter generations 3 and 3.5. Version 18 updates headers and adds SAS_DEVICE_DISCOVERY_ERROR reporting. MFC after: 2 weeks
a bit in the normal operation of the driver. Covert it to represent bytes instead of 32bit words. Fix what I believe to be is a bug in this respect with the Tri-mode cards. Sponsored by: Netflix
In mp{r,s}_diag_register(), which is used to register diagnostic
buffers with the mp{r,s}(4) firmware, we allocate DMAable memory.
There were several issues here:
o No checking of the bus_dmamap_load() return value. If the load
failed or got deferred, mp{r,s}_diag_register() continued on as if
nothing had happened. We now check the return value and bail
out if it fails.
o No waiting for a deferred load callback. bus_dmamap_load()
calls a supplied callback when the mapping is done. This is
generally done immediately, but it can be deferred.
mp{r,s}_diag_register() did not check to see whether the callback
was already done before proceeding on. We now sleep until the
callback is done if it is deferred.
o No call to bus_dmamap_sync(... BUS_DMASYNC_PREREAD) after the
memory is allocated and loaded. This is necessary on some
platforms to synchronize host memory that is going to be updated
by a device.
Both drivers would also panic if the firmware was reinitialized while
a diagnostic buffer operation was in progress. This fixes that problem
as well. (The driver will reinitialize the firmware in various
circumstances, but the problem I ran into was that the firmware would
generate an IOC Fault due to a PCIe error.)
mp{r,s}var.h:
Add a new structure, struct mpr_busdma_context, that is
used for deferred busdma load callbacks.
Add a prototype for mp{r,s}_memaddr_wait_cb().
mp{r,s}.c:
Add a new busdma callback function, mp{r,s}_memaddr_wait_cb().
This provides synchronization for callers that want to
wait on a deferred bus_dmamap_load() callback.
mp{r,s}_user.c:
In bus_dmamap_register(), add a call to bus_dmamap_sync()
with the BUS_DMASYNC_PREREAD flag set after an allocation
is loaded.
Also, check the return value of bus_dmamap_load(). If it
fails, bail out. If it is EINPROGRESS, wait for the
callback to happen. We use an interruptible sleep (msleep
with PCATCH) and let the callback clean things up if we get
interrupted.
In mpr_diag_read_buffer() and mps_diag_read_buffer(), call
bus_dmamap_sync(..., BUS_DMASYNC_POSTREAD) before copying
the data out to make sure the data is in stable storage.
In mp{r,s}_post_fw_diag_buffer() and
mp{r,s}_release_fw_diag_buffer(), check the reply to see
whether it is NULL. It can be NULL (and the command non-NULL)
if the controller gets reinitialized while we're waiting for
the command to complete but the driver structures aren't
reallocated. The driver structures generally won't be
reallocated unless there is a firmware upgrade that changes
one of the IOCFacts.
When freeing diagnostic buffers in mp{r,s}_diag_register()
and mp{r,s}_diag_unregister(), zero/NULL out the buffer after
freeing it. This will prevent a duplicate free in some
situations.
Sponsored by: Spectra Logic
Reviewed by: mav, scottl
MFC after: 1 week
Differential Revision: D13453
commit it to make initiazation less chatty in the normal case, and more useful and informative when real debugging is turned on. Reviewed by: ken (earlier version) Sponsored by: Netflix
When the mps(4) and mpr(4) drivers need to reinitialize the firmware, they sometimes need to reallocate all of the memory allocated by the driver. The reallocation happens whenever the IOC Facts change. That should only happen after a firmware upgrade. If the reinitialization happens as a result of a timed out command sent to the card, the command that timed out and triggered the reinit may have been freed if iocfacts_allocate() reallocated all memory. If the caller attempts to access the command after that, the kernel will panic because the caller will be dereferencing freed memory. The solution is to set a flag in the softc when we reallocate, and avoid dereferencing the command strucure if we've reallocated. The changes are largely the same in both drivers, since mpr(4) is a derivative of mps(4). o In iocfacts_allocate(), if the IOC Facts have changed and we need to reallocate, set the REALLOCATED flag in the softc. o Change wait_command() to take a struct mps_command ** instead of a struct mps_command *. This allows us to NULL out the caller's command pointer if we have to reinit the controller and the data structures get reallocated. (The REALLOCATED flag will be set in the softc if that has happened.) o In every place that calls wait_command(), make sure we handle the case where the command is NULL after the call. o The mpr(4) driver has mpr_request_polled() which can also reinitialize the card. Also check for reallocation there. Reviewed by: scottl, slm MFC after: 1 week Sponsored by: Spectra Logic