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This patch fixes the code which frees the partially allocated QP
resources if there was an error while creating the QP. In particular,
the QPN wasn't deallocated and the QP wasn't removed from the hash
table.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The wrong offset was being returned to libipathverbs so that when
ibv_resize_cq() calls mmap(), it always fails.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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When an ACK is received, the QP is removed from the timeout list and
then if there are still pending send WQEs, the QP is put back on the
timeout list. It is possible that another post send has put the QP on
the timeout list thus, a check needs to be made before trying to do it
again or the list is corrupted.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Patrick Marchand Latifi <patrick.latifi@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Inside a function declared as
void foo(char bar[512])
the value of sizeof bar is the size of a pointer, not 512. So avoid
constructions like this by passing the size explicitly.
Also reduce the size of the buffer to 128 bytes (512 was overly generous).
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The small eeprom that holds the GUID etc. contains a data-length, but if
the actual eeprom is new or has been erased, that byte will be 0xFF,
which is greater than the maximum physical length of the eeprom, and
more importantly greater than the length of the buffer we vmalloc'd.
Sanity-check the length to avoid the possbility of reading past end of
buffer.
Signed-off-by: Michael Albaugh <Michael.Albaugh@Qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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There is a small window where a send work queue entry could be
overwritten by ib_post_send() because s_last is updated before the
entry is read.
This patch closes the window by acquiring the lock and updating
the last send work queue entry index after reading the wr_id.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Fixed to be the same as everywhere else. copy and then zero the page *
in the array first, and then pass the copy to the VM routines.
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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This patch removes some redundant checks when the SMA changes the link
state since the same checks are made in the lower level function that
sets the state.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The link state event calls were being generated when the SM told the SMA
to change link states. This works for IB_EVENT_PORT_ACTIVE but not if
the link goes down and stays down. The fix is to generate event calls
from the interrupt handler when the HW link state changes.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The General Purpose I/O pins can be configured to cause interrupts. At
the end of the interrupt code dealing with all known causes, a message
is output if any bits remain un-handled. Since this is a "can't happen"
scenario, it should only be triggered by bugs elsewhere. It is harmless,
and potentially beneficial, to limit the damage by masking any such
unexpected interrupts.
This patch adds disabling of interrupts from any pins that should
not have been allowed to interrupt, in addition to emitting a message.
Signed-off-by: Michael Albaugh <Michael.Albaugh@Qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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There is a count of "active hours" maintained in EEPROM, to aid
troubleshooting. The definition of "active" is based on traffic
exceeding a threshold in any given 5-second polling interval. As
originally written, the check was inadvertently bypassed for chips whose
counters were 64-bits wide, and only applied to chips with 32-bit wide
counters.
This patch moves the test for amount of traffic "out" to a more common
location, rather than depending on a side-effect of the software
emulation of 64-bit counts on chips whose hardware is only 32-bits wide.
Signed-off-by: Michael Albaugh <Michael.Albaugh@Qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Remove all the OEM and bringup boards, and complain and fail
initialization if one is found. QHT7040 with GPIO rework (128ywwuuuu)
is OK, older 112ywwuuuu is no longer supported). The check that had been
added was failing both the 112 and 128 series.
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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A couple of chip bugs in the iba6110 and in the iba6120 are not in more
recent chips. This first bug swaps two of the pioavail register
locations. In the second bug, the chip can sometimes forget to dma the
pio avail register to memory. We indicate the presence of these bugs
with runtime flags and we indicate the presence of the flags by bumping
the SWMINOR.
Signed-off-by: Arthur Jones <arthur.jones@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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iba6110 rev3 and earlier had a chip bug where the chip could overrun the
recv header queue. rev4 fixed this chip bug so userspace no longer needs
to workaround it. Now we only set the workaround flag for older chip
versions.
Signed-off-by: Arthur Jones <arthur.jones@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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ipath_poll() suffered from a couple subtle bugs. Under the right
conditions we could leave recv interrupts enabled on an ipath user
context on close, thereby taking potentially unwanted interrupts on the
next open -- this is fixed by unconditionally turning off recv
interrupts on close. Also, we now use counters rather than set/clear
bits which allows us to make sure we catch all interrupts at the cost of
changing the semantics slightly (it's now give me all events since the
last time I called poll() rather than give me all events since I called
_this_ poll routine). We also added some memory barriers which may help
ensure we get all notifications in a timely manner.
Signed-off-by: Arthur Jones <arthur.jones@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The LMC value was being saved by the SMA in two places. This patch
cleans it up so only one copy is kept.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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This patch adds the ability to set the LMC via a sysfs file as if the SM
sent a SubnSet(PortInfo) MAD. It is useful for debugging when no SM is
running.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The code to add an entry to the completion queue stored the QPN which is
needed for the user level verbs view of the completion queue entry but
the kernel struct ib_wc contains a pointer to the QP instead of a QPN.
When the kernel polled for a completion queue entry, the QPN was lookup
up and the QP pointer recovered. This patch stores the CQE differently
based on whether the CQ is a kernel CQ or a user CQ thus avoiding the
QPN to QP lookup overhead.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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This patch implements the IB_EVENT_QP_LAST_WQE_REACHED event which is
needed by ib_ipoib to destroy the QP when used in connected mode.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Follow the IB spec. (C10-96) for post send which states that a flushed
completion event should be generated for work requests posted when a QP
is in the error state.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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This patch removes some redundant initialization code.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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In an earlier change, the amount of data read from the flash was
mistakenly limited to the size known to the current driver. This causes
problems when the length is increased, and written with the new longer
version; the checksum would fail because not enough data was read.
Always read the full 128 byte length to prevent this.
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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This patch fixes a bug in the receive processing for UC RDMA WRITE with
immediate which caused the last packet to be dropped.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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This is a comment change, only, correcting the comment to match the
implemented workaround, rather than the original workaround, and
clarifying why it's needed.
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The ipathfs file system is used to export binary data verses ASCII data
such as through /sys. This patch removes some unneeded files since the
data is available through other /sys files.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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There have been a number of issues where host bandwidth via HT or PCIe
to the InfiniPath chip has been limited in some fashion (BIOS,
configuration, etc.), resulting in user confusion. This check gives a
clear warning that something is wrong and needs to be resolved.
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The code to post UD sends tried to process work requests at the time
ib_post_send() is called without using a WQE queue. This was fine as
long as HW resources were available for sending a packet. This patch
changes UD to be handled more like RC and UC and shares more code.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Different processors have different ordering restrictions for write
combining. By taking advantage of this, we can eliminate some write
barriers when writing to the send buffers.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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On iba6110 rev4, support for three more IB counters were added. The
LocalLinkIntegrityError counter, the ExcessiveBufferOverrunErrors
counter and support for error counting of flow control packets on an
invalid VL. These counters trigger GPIO interrupts and the sw keeps
track of the counts. Since we also use GPIO interrupts to signal packet
reception, we need to turn off the fast interrupts, or we risk losing a
GPIO interrupt.
Signed-off-by: Arthur Jones <arthur.jones@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/ipath: Workaround problem of errormask register being overwritten
IB/ipath: Fix some issues with buffer cancel and sendctrl register update
IB/ipath: Use faster put_tid_2 routine after initialization
IB/ipath: Remove unsafe fastrcvint code from interrupt handler
IB/ehca: Move extern declarations from .c files to .h files
IB/mlx4: Whitespace fix
IB/ehca: Fix include order to better match kernel style
mlx4_core: Remove kfree() in mlx4_mr_alloc() error flow
RDMA/amso1100: Initialize the wait_queue_head_t in the c2_qp structure
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On some system hardware, we are seeing moderately common cases of the
chip errormask register being overwritten due to a chip bug in iba6120
that is triggered by a vendor-specific PCIe broadcast message. This
patch merely checks periodically, and corrects it if needed (the
overwrite can cause us to not get error and hardware error
interrupts). Also, make dd->ipath_errormask the one, true canonical
source for kr_errormask, and remove references to ipath_ignorederrs as
it is currently unused.
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: John Gregor <john.gregor@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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There was confused use of INFINIPATH_S_PIOBUFAVAILUPD (value) and
IPATH_S_PIOBUFAVAILUPD (bit position). Also, some callers of
ipath_cancel_sends() need kr_sendctrl restored, and some want to do it
later.
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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At one time the ipath_minrev field was initialized prior to the
ipath_init_iba6120_funcs call, but that is no longer the case, so the
slower put_tid routine was always being used.
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The fastrcvint code's purpose was to avoid reading the interrupt
status if kernel packets were in the receive queue (to reduce
overhead). Because intstatus was not read, we could miss the error
interrupt bit indicating freeze mode, since it only delivers a single
interrupt, even if still pending after intclear is written.
This patch removes that unsafe optimization.
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Remove fs.h from mm.h. For this,
1) Uninline vma_wants_writenotify(). It's pretty huge anyway.
2) Add back fs.h or less bloated headers (err.h) to files that need it.
As result, on x86_64 allyesconfig, fs.h dependencies cut down from 3929 files
rebuilt down to 3444 (-12.3%).
Cross-compile tested without regressions on my two usual configs and (sigh):
alpha arm-mx1ads mips-bigsur powerpc-ebony
alpha-allnoconfig arm-neponset mips-capcella powerpc-g5
alpha-defconfig arm-netwinder mips-cobalt powerpc-holly
alpha-up arm-netx mips-db1000 powerpc-iseries
arm arm-ns9xxx mips-db1100 powerpc-linkstation
arm-assabet arm-omap_h2_1610 mips-db1200 powerpc-lite5200
arm-at91rm9200dk arm-onearm mips-db1500 powerpc-maple
arm-at91rm9200ek arm-picotux200 mips-db1550 powerpc-mpc7448_hpc2
arm-at91sam9260ek arm-pleb mips-ddb5477 powerpc-mpc8272_ads
arm-at91sam9261ek arm-pnx4008 mips-decstation powerpc-mpc8313_rdb
arm-at91sam9263ek arm-pxa255-idp mips-e55 powerpc-mpc832x_mds
arm-at91sam9rlek arm-realview mips-emma2rh powerpc-mpc832x_rdb
arm-ateb9200 arm-realview-smp mips-excite powerpc-mpc834x_itx
arm-badge4 arm-rpc mips-fulong powerpc-mpc834x_itxgp
arm-carmeva arm-s3c2410 mips-ip22 powerpc-mpc834x_mds
arm-cerfcube arm-shannon mips-ip27 powerpc-mpc836x_mds
arm-clps7500 arm-shark mips-ip32 powerpc-mpc8540_ads
arm-collie arm-simpad mips-jazz powerpc-mpc8544_ds
arm-corgi arm-spitz mips-jmr3927 powerpc-mpc8560_ads
arm-csb337 arm-trizeps4 mips-malta powerpc-mpc8568mds
arm-csb637 arm-versatile mips-mipssim powerpc-mpc85xx_cds
arm-ebsa110 i386 mips-mpc30x powerpc-mpc8641_hpcn
arm-edb7211 i386-allnoconfig mips-msp71xx powerpc-mpc866_ads
arm-em_x270 i386-defconfig mips-ocelot powerpc-mpc885_ads
arm-ep93xx i386-up mips-pb1100 powerpc-pasemi
arm-footbridge ia64 mips-pb1500 powerpc-pmac32
arm-fortunet ia64-allnoconfig mips-pb1550 powerpc-ppc64
arm-h3600 ia64-bigsur mips-pnx8550-jbs powerpc-prpmc2800
arm-h7201 ia64-defconfig mips-pnx8550-stb810 powerpc-ps3
arm-h7202 ia64-gensparse mips-qemu powerpc-pseries
arm-hackkit ia64-sim mips-rbhma4200 powerpc-up
arm-integrator ia64-sn2 mips-rbhma4500 s390
arm-iop13xx ia64-tiger mips-rm200 s390-allnoconfig
arm-iop32x ia64-up mips-sb1250-swarm s390-defconfig
arm-iop33x ia64-zx1 mips-sead s390-up
arm-ixp2000 m68k mips-tb0219 sparc
arm-ixp23xx m68k-amiga mips-tb0226 sparc-allnoconfig
arm-ixp4xx m68k-apollo mips-tb0287 sparc-defconfig
arm-jornada720 m68k-atari mips-workpad sparc-up
arm-kafa m68k-bvme6000 mips-wrppmc sparc64
arm-kb9202 m68k-hp300 mips-yosemite sparc64-allnoconfig
arm-ks8695 m68k-mac parisc sparc64-defconfig
arm-lart m68k-mvme147 parisc-allnoconfig sparc64-up
arm-lpd270 m68k-mvme16x parisc-defconfig um-x86_64
arm-lpd7a400 m68k-q40 parisc-up x86_64
arm-lpd7a404 m68k-sun3 powerpc x86_64-allnoconfig
arm-lubbock m68k-sun3x powerpc-cell x86_64-defconfig
arm-lusl7200 mips powerpc-celleb x86_64-up
arm-mainstone mips-atlas powerpc-chrp32
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The ipath_layer.[ch] code was an attempt to provide a single interface
for the ipath verbs and ipath_ether code to use. As verbs
functionality increased, the layer's functionality became insufficient
and the verbs code broke away to interface directly to the driver.
The failed attempt to get ipath_ether upstream was the final nail in
the coffin and now it sits quietly in a dark kernel.org corner waiting
for someone to notice the smell and send it along to it's final
resting place. Roland Dreier was that someone -- this patch expands
on his work...
Signed-off-by: Arthur Jones <arthur.jones@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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It has no callers and is completely dead code.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Make some functions that are only used in a single .c file static. In
addition to being a cleanup, this shrinks the generated code. On x86_64:
add/remove: 1/3 grow/shrink: 2/1 up/down: 4777/-4956 (-179)
function old new delta
handle_errors - 3994 +3994
__verbs_timer 42 710 +668
ipath_do_ruc_send 2131 2246 +115
ipath_no_bufs_available 136 - -136
ipath_disarm_senderrbufs 639 - -639
ipath_ib_timer 658 - -658
ipath_intr 5878 2355 -3523
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (76 commits)
IB: Update MAINTAINERS with Hal's new email address
IB/mlx4: Implement query SRQ
IB/mlx4: Implement query QP
IB/cm: Send no match if a SIDR REQ does not match a listen
IB/cm: Fix handling of duplicate SIDR REQs
IB/cm: cm_msgs.h should include ib_cm.h
IB/cm: Include HCA ACK delay in local ACK timeout
IB/cm: Use spin_lock_irq() instead of spin_lock_irqsave() when possible
IB/sa: Make sure SA queries use default P_Key
IPoIB: Recycle loopback skbs instead of freeing and reallocating
IB/mthca: Replace memset(<addr>, 0, PAGE_SIZE) with clear_page(<addr>)
IPoIB/cm: Fix warning if IPV6 is not enabled
IB/core: Take sizeof the correct pointer when calling kmalloc()
IB/ehca: Improve latency by unlocking after triggering the hardware
IB/ehca: Notify consumers of LID/PKEY/SM changes after nondisruptive events
IB/ehca: Return QP pointer in poll_cq()
IB/ehca: Change idr spinlocks into rwlocks
IB/ehca: Refactor sync between completions and destroy_cq using atomic_t
IB/ehca: Lock renaming, static initializers
IB/ehca: Report RDMA atomic attributes in query_qp()
...
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Instead of all drivers reading pci config space to get the revision
ID, they can now use the pci_device->revision member.
This exposes some issues where drivers where reading a word or a dword
for the revision number, and adding useless error-handling around the
read. Some drivers even just read it for no purpose of all.
In devices where the revision ID is being copied over and used in what
appears to be the equivalent of hotpath, I have left the copy code
and the cached copy as not to influence the driver's performance.
Compile tested with make all{yes,mod}config on x86_64 and i386.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Acked-by: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Return the PortGUID of the correct port when responding to a NodeInfo
query. Returning the SystemImageGUID causes issues when there are
multiple HCAs in a single system.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The changeset 3859e39d ("IB/ipath: Support larger IB_QP_MAX_DEST_RD_ATOMIC
and IB_QP_MAX_QP_RD_ATOMIC") added support for larger RD_ATOMIC values,
but it failed to take out the stricter checks that were before these and
hence had no effect. This patch takes out the bogus checks....
Signed-off-by: Arthur Jones <arthur.jones@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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All too often, interrupts do not get enabled for our card due to BIOS
misconfiguration and other issues. This patch checks for that
condition on startup and warns the user. This patch is based on work
(check LID availability) by Robert Walsh.
Signed-off-by: Arthur Jones <arthur.jones@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Clean up some code by removing support for some older pre-production
HTX InfiniPath cards.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
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Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The default calculation for the number of send buffers to allocate to
the kernel was too high for the PCIe version of the chip thus leaving
fewer than desired send buffers for user MPI applications.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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We are more careful to be sure that we don't lose information about
changes that occurred while we were in freeze mode, when the chip will
not notify us, and try to avoid false error interrupts while doing
cleanup. Put all of this logic in a new function ipath_clear_freeze().
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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