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Pull networking fixes from David Miller:
"Lots of fixes, mostly drivers as is usually the case.
1) Don't treat zero DMA address as invalid in vmxnet3, from Alexey
Khoroshilov.
2) Fix element timeouts in netfilter's nft_dynset, from Anders K.
Pedersen.
3) Don't put aead_req crypto struct on the stack in mac80211, from
Ard Biesheuvel.
4) Several uninitialized variable warning fixes from Arnd Bergmann.
5) Fix memory leak in cxgb4, from Colin Ian King.
6) Fix bpf handling of VLAN header push/pop, from Daniel Borkmann.
7) Several VRF semantic fixes from David Ahern.
8) Set skb->protocol properly in ip6_tnl_xmit(), from Eli Cooper.
9) Socket needs to be locked in udp_disconnect(), from Eric Dumazet.
10) Div-by-zero on 32-bit fix in mlx4 driver, from Eugenia Emantayev.
11) Fix stale link state during failover in NCSCI driver, from Gavin
Shan.
12) Fix netdev lower adjacency list traversal, from Ido Schimmel.
13) Propvide proper handle when emitting notifications of filter
deletes, from Jamal Hadi Salim.
14) Memory leaks and big-endian issues in rtl8xxxu, from Jes Sorensen.
15) Fix DESYNC_FACTOR handling in ipv6, from Jiri Bohac.
16) Several routing offload fixes in mlxsw driver, from Jiri Pirko.
17) Fix broadcast sync problem in TIPC, from Jon Paul Maloy.
18) Validate chunk len before using it in SCTP, from Marcelo Ricardo
Leitner.
19) Revert a netns locking change that causes regressions, from Paul
Moore.
20) Add recursion limit to GRO handling, from Sabrina Dubroca.
21) GFP_KERNEL in irq context fix in ibmvnic, from Thomas Falcon.
22) Avoid accessing stale vxlan/geneve socket in data path, from
Pravin Shelar"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (189 commits)
geneve: avoid using stale geneve socket.
vxlan: avoid using stale vxlan socket.
qede: Fix out-of-bound fastpath memory access
net: phy: dp83848: add dp83822 PHY support
enic: fix rq disable
tipc: fix broadcast link synchronization problem
ibmvnic: Fix missing brackets in init_sub_crq_irqs
ibmvnic: Fix releasing of sub-CRQ IRQs in interrupt context
Revert "ibmvnic: Fix releasing of sub-CRQ IRQs in interrupt context"
arch/powerpc: Update parameters for csum_tcpudp_magic & csum_tcpudp_nofold
net/mlx4_en: Save slave ethtool stats command
net/mlx4_en: Fix potential deadlock in port statistics flow
net/mlx4: Fix firmware command timeout during interrupt test
net/mlx4_core: Do not access comm channel if it has not yet been initialized
net/mlx4_en: Fix panic during reboot
net/mlx4_en: Process all completions in RX rings after port goes up
net/mlx4_en: Resolve dividing by zero in 32-bit system
net/mlx4_core: Change the default value of enable_qos
net/mlx4_core: Avoid setting ports to auto when only one port type is supported
net/mlx4_core: Fix the resource-type enum in res tracker to conform to FW spec
...
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ARM 64B cache line systems have L1_CACHE_BYTES set to 128.
cache_line_size() will return the correct size.
Fixes: cf50b5efa2fe('net/mlx5_core/ib: New device capabilities
handling.')
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge the gup_flags cleanups from Lorenzo Stoakes:
"This patch series adjusts functions in the get_user_pages* family such
that desired FOLL_* flags are passed as an argument rather than
implied by flags.
The purpose of this change is to make the use of FOLL_FORCE explicit
so it is easier to grep for and clearer to callers that this flag is
being used. The use of FOLL_FORCE is an issue as it overrides missing
VM_READ/VM_WRITE flags for the VMA whose pages we are reading
from/writing to, which can result in surprising behaviour.
The patch series came out of the discussion around commit 38e088546522
("mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing"),
which addressed a BUG_ON() being triggered when a page was faulted in
with PROT_NONE set but having been overridden by FOLL_FORCE.
do_numa_page() was run on the assumption the page _must_ be one marked
for NUMA node migration as an actual PROT_NONE page would have been
dealt with prior to this code path, however FOLL_FORCE introduced a
situation where this assumption did not hold.
See
https://marc.info/?l=linux-mm&m=147585445805166
for the patch proposal"
Additionally, there's a fix for an ancient bug related to FOLL_FORCE and
FOLL_WRITE by me.
[ This branch was rebased recently to add a few more acked-by's and
reviewed-by's ]
* gup_flag-cleanups:
mm: replace access_process_vm() write parameter with gup_flags
mm: replace access_remote_vm() write parameter with gup_flags
mm: replace __access_remote_vm() write parameter with gup_flags
mm: replace get_user_pages_remote() write/force parameters with gup_flags
mm: replace get_user_pages() write/force parameters with gup_flags
mm: replace get_vaddr_frames() write/force parameters with gup_flags
mm: replace get_user_pages_locked() write/force parameters with gup_flags
mm: replace get_user_pages_unlocked() write/force parameters with gup_flags
mm: remove write/force parameters from __get_user_pages_unlocked()
mm: remove write/force parameters from __get_user_pages_locked()
mm: remove gup_flags FOLL_WRITE games from __get_user_pages()
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This removes the 'write' and 'force' from get_user_pages_remote() and
replaces them with 'gup_flags' to make the use of FOLL_FORCE explicit in
callers as use of this flag can result in surprising behaviour (and
hence bugs) within the mm subsystem.
Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This removes the 'write' and 'force' from get_user_pages() and replaces
them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers
as use of this flag can result in surprising behaviour (and hence bugs)
within the mm subsystem.
Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma qedr RoCE driver from Doug Ledford:
"Early on in the merge window I mentioned I had a backlog of new
drivers waiting to be reviewed and that, in addition to the hns-roce
driver, I wanted to get possible a couple more reviewed. I ended up
only having the time to complete one of the additional drivers.
During Dave Miller's pull request this go around, there were a series
of 9 patches to the QLogic qed net driver that add basic support for a
paired RoCE driver. That support is currently not functional because
it is missing the matching RoCE driver in the RDMA subsystem. I
managed to finish that review. However, because it goes against part
of Dave's net pull, and a part that was accepted a day or two after
the merge window opened, to apply cleanly it has to be applied to
either the tip of Dave's net branch, or as I did in this case, I just
applied it to your master after you had taken Dave's pull request."
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
qedr: Add events support and register IB device
qedr: Add GSI support
qedr: Add LL2 RoCE interface
qedr: Add support for data path
qedr: Add support for memory registeration verbs
qedr: Add support for QP verbs
qedr: Add support for PD,PKEY and CQ verbs
qedr: Add support for user context verbs
qedr: Add support for RoCE HW init
qedr: Add RoCE driver framework
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git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull more rdma updates from Doug Ledford:
"This merge window was the first where Huawei had to try and coordinate
their patches between their net driver and their new roce driver
(similar to mlx4 and mlx5).
They didn't do horribly, but there were some issues (and we knew that
because they simply didn't know what to do in the beginning). As a
result, I had a set of patches that depended on some patches that
normally would have come to you via Dave's tree. Those patches have
been on netdev@ for a while, so I got Dave to give me his approval to
send them to you. As such, the other 29 patches I had behind them are
also now ready to go.
This catches the hns and hns-roce drivers up to current, and for
future patches we are working with them to get them up to speed on how
to do joint driver development so that they don't have these sorts of
cross tree dependency issues again. BTW, Dave gave me permission to
add his Acked-by: to the patches against the net tree, but I've had
this branch through 0day (but not linux-next since it was off by
itself) and I didn't want to rebase the series just to add Dave's ack
for the 8 patches in the net area.
Updates to the hns drivers:
- Small patch set for hns net driver that the roce patches depend on
- Various fixes to the hns-roce driver
- Add connection manager support to the hns-roce driver"
* tag 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (36 commits)
IB/hns: Fix for removal of redundant code
IB/hns: Delete the redundant lines in hns_roce_v1_m_qp()
IB/hns: Fix the bug when platform_get_resource() exec fail
IB/hns: Update the rq head when modify qp state
IB/hns: Cq has not been freed
IB/hns: Validate mtu when modified qp
IB/hns: Some items of qpc need to take user param
IB/hns: The Ack timeout need a lower limit value
IB/hns: Return bad wr while post send failed
IB/hns: Fix bug of memory leakage for registering user mr
IB/hns: Modify the init of iboe lock
IB/hns: Optimize code of aeq and ceq interrupt handle and fix the bug of qpn
IB/hns: Delete the sqp_start from the structure hns_roce_caps
IB/hns: Fix bug of clear hem
IB/hns: Remove unused parameter named qp_type
IB/hns: Simplify function of pd alloc and qp alloc
IB/hns: Fix bug of using uninit refcount and free
IB/hns: Remove parameters of resize cq
IB/hns: Remove unused parameters in some functions
IB/hns: Add node_guid definition to the bindings document
...
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Add error handling support.
Register ib device with ib stack.
Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Add support for GSI over light L2.
Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Add light L2 interface for RoCE.
Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Implement fastpath verbs like ib_send_post, ib_post_recv and ib_poll_cq.
Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Add support for user, dma and memory regions registration.
Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Add support for Queue Pair verbs which adds, deletes,
modifies and queries Queue Pairs.
Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Add support for protection domain and completion queue verbs.
Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Add support for ucontext, query port, add and del gid verbs.
Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Allocate and setup RoCE resources, interrupts and completion queues.
Adds device attributes.
Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Adds a skeletal implementation of the qed* RoCE driver -
basically the ability to communicate with the qede driver and
receive notifications from it regarding various init/exit events.
Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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After the commit 9207f9d45b0a ("net: preserve IP control block
during GSO segmentation"), the GSO CB and the IPoIB CB conflict.
That destroy the IPoIB address information cached there,
causing a severe performance regression, as better described here:
http://marc.info/?l=linux-kernel&m=146787279825501&w=2
This change moves the data cached by the IPoIB driver from the
skb control lock into the IPoIB hard header, as done before
the commit 936d7de3d736 ("IPoIB: Stop lying about hard_header_len
and use skb->cb to stash LL addresses").
In order to avoid GRO issue, on packet reception, the IPoIB driver
stash into the skb a dummy pseudo header, so that the received
packets have actually a hard header matching the declared length.
To avoid changing the connected mode maximum mtu, the allocated
head buffer size is increased by the pseudo header length.
After this commit, IPoIB performances are back to pre-regression
value.
v2 -> v3: rebased
v1 -> v2: avoid changing the max mtu, increasing the head buf size
Fixes: 9207f9d45b0a ("net: preserve IP control block during GSO segmentation")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A good practice is to prefix the names of functions by the name
of the subsystem.
The kthread worker API is a mix of classic kthreads and workqueues. Each
worker has a dedicated kthread. It runs a generic function that process
queued works. It is implemented as part of the kthread subsystem.
This patch renames the existing kthread worker API to use
the corresponding name from the workqueues API prefixed by
kthread_:
__init_kthread_worker() -> __kthread_init_worker()
init_kthread_worker() -> kthread_init_worker()
init_kthread_work() -> kthread_init_work()
insert_kthread_work() -> kthread_insert_work()
queue_kthread_work() -> kthread_queue_work()
flush_kthread_work() -> kthread_flush_work()
flush_kthread_worker() -> kthread_flush_worker()
Note that the names of DEFINE_KTHREAD_WORK*() macros stay
as they are. It is common that the "DEFINE_" prefix has
precedence over the subsystem names.
Note that INIT() macros and init() functions use different
naming scheme. There is no good solution. There are several
reasons for this solution:
+ "init" in the function names stands for the verb "initialize"
aka "initialize worker". While "INIT" in the macro names
stands for the noun "INITIALIZER" aka "worker initializer".
+ INIT() macros are used only in DEFINE() macros
+ init() functions are used close to the other kthread()
functions. It looks much better if all the functions
use the same scheme.
+ There will be also kthread_destroy_worker() that will
be used close to kthread_cancel_work(). It is related
to the init() function. Again it looks better if all
functions use the same naming scheme.
+ there are several precedents for such init() function
names, e.g. amd_iommu_init_device(), free_area_init_node(),
jump_label_init_type(), regmap_init_mmio_clk(),
+ It is not an argument but it was inconsistent even before.
[arnd@arndb.de: fix linux-next merge conflict]
Link: http://lkml.kernel.org/r/20160908135724.1311726-1-arnd@arndb.de
Link: http://lkml.kernel.org/r/1470754545-17632-3-git-send-email-pmladek@suse.com
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs updates from Al Viro:
">rename2() work from Miklos + current_time() from Deepa"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: Replace current_fs_time() with current_time()
fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps
fs: Replace CURRENT_TIME with current_time() for inode timestamps
fs: proc: Delete inode time initializations in proc_alloc_inode()
vfs: Add current_time() api
vfs: add note about i_op->rename changes to porting
fs: rename "rename2" i_op to "rename"
vfs: remove unused i_op->rename
fs: make remaining filesystems use .rename2
libfs: support RENAME_NOREPLACE in simple_rename()
fs: support RENAME_NOREPLACE for local filesystems
ncpfs: fix unused variable warning
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git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull main rdma updates from Doug Ledford:
"This is the main pull request for the rdma stack this release. The
code has been through 0day and I had it tagged for linux-next testing
for a couple days.
Summary:
- updates to mlx5
- updates to mlx4 (two conflicts, both minor and easily resolved)
- updates to iw_cxgb4 (one conflict, not so obvious to resolve,
proper resolution is to keep the code in cxgb4_main.c as it is in
Linus' tree as attach_uld was refactored and moved into
cxgb4_uld.c)
- improvements to uAPI (moved vendor specific API elements to uAPI
area)
- add hns-roce driver and hns and hns-roce ACPI reset support
- conversion of all rdma code away from deprecated
create_singlethread_workqueue
- security improvement: remove unsafe ib_get_dma_mr (breaks lustre in
staging)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (75 commits)
staging/lustre: Disable InfiniBand support
iw_cxgb4: add fast-path for small REG_MR operations
cxgb4: advertise support for FR_NSMR_TPTE_WR
IB/core: correctly handle rdma_rw_init_mrs() failure
IB/srp: Fix infinite loop when FMR sg[0].offset != 0
IB/srp: Remove an unused argument
IB/core: Improve ib_map_mr_sg() documentation
IB/mlx4: Fix possible vl/sl field mismatch in LRH header in QP1 packets
IB/mthca: Move user vendor structures
IB/nes: Move user vendor structures
IB/ocrdma: Move user vendor structures
IB/mlx4: Move user vendor structures
IB/cxgb4: Move user vendor structures
IB/cxgb3: Move user vendor structures
IB/mlx5: Move and decouple user vendor structures
IB/{core,hw}: Add constant for node_desc
ipoib: Make ipoib_warn ratelimited
IB/mlx4/alias_GUID: Remove deprecated create_singlethread_workqueue
IB/ipoib_verbs: Remove deprecated create_singlethread_workqueue
IB/ipoib: Remove deprecated create_singlethread_workqueue
...
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git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull more rdma updates from Doug Ledford:
"Minor updates for rxe driver"
[ Starting to do merge window pulls again - the current -git tree does
appear to have some netfilter use-after-free issues, but I've sent
off the report to the proper channels, and I don't want to delay merge
window activity any more ]
* tag 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
IB/rxe: improved debug prints & code cleanup
rdma_rxe: Ensure rdma_rxe init occurs at correct time
IB/rxe: Properly honor max IRD value for rd/atomic.
IB/{rxe,core,rdmavt}: Fix kernel crash for reg MR
IB/rxe: Fix sending out loopback packet on netdev interface.
IB/rxe: Avoid scheduling tasklet for userspace QP
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When processing a REG_MR work request, if fw supports the
FW_RI_NSMR_TPTE_WR work request, and if the page list for this
registration is <= 2 pages, and the current state of the mr is INVALID,
then use FW_RI_NSMR_TPTE_WR to pass down a fully populated TPTE for FW
to write. This avoids FW having to do an async read of the TPTE blocking
the SQ until the read completes.
To know if the current MR state is INVALID or not, iw_cxgb4 must track the
state of each fastreg MR. The c4iw_mr struct state is updated as REG_MR
and LOCAL_INV WRs are posted and completed, when a reg_mr is destroyed,
and when RECV completions are processed that include a local invalidation.
This optimization increases small IO IOPS for both iSER and NVMF.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Function ib_create_qp() was failing to return an error when
rdma_rw_init_mrs() fails, causing a crash further down in ib_create_qp()
when trying to dereferece the qp pointer which was actually a negative
errno.
The crash:
crash> log|grep BUG
[ 136.458121] BUG: unable to handle kernel NULL pointer dereference at 0000000000000098
crash> bt
PID: 3736 TASK: ffff8808543215c0 CPU: 2 COMMAND: "kworker/u64:2"
#0 [ffff88084d323340] machine_kexec at ffffffff8105fbb0
#1 [ffff88084d3233b0] __crash_kexec at ffffffff81116758
#2 [ffff88084d323480] crash_kexec at ffffffff8111682d
#3 [ffff88084d3234b0] oops_end at ffffffff81032bd6
#4 [ffff88084d3234e0] no_context at ffffffff8106e431
#5 [ffff88084d323530] __bad_area_nosemaphore at ffffffff8106e610
#6 [ffff88084d323590] bad_area_nosemaphore at ffffffff8106e6f4
#7 [ffff88084d3235a0] __do_page_fault at ffffffff8106ebdc
#8 [ffff88084d323620] do_page_fault at ffffffff8106f057
#9 [ffff88084d323660] page_fault at ffffffff816e3148
[exception RIP: ib_create_qp+427]
RIP: ffffffffa02554fb RSP: ffff88084d323718 RFLAGS: 00010246
RAX: 0000000000000004 RBX: fffffffffffffff4 RCX: 000000018020001f
RDX: ffff880830997fc0 RSI: 0000000000000001 RDI: ffff88085f407200
RBP: ffff88084d323778 R8: 0000000000000001 R9: ffffea0020bae210
R10: ffffea0020bae218 R11: 0000000000000001 R12: ffff88084d3237c8
R13: 00000000fffffff4 R14: ffff880859fa5000 R15: ffff88082eb89800
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#10 [ffff88084d323780] rdma_create_qp at ffffffffa0782681 [rdma_cm]
#11 [ffff88084d3237b0] nvmet_rdma_create_queue_ib at ffffffffa07c43f3 [nvmet_rdma]
#12 [ffff88084d323860] nvmet_rdma_alloc_queue at ffffffffa07c5ba9 [nvmet_rdma]
#13 [ffff88084d323900] nvmet_rdma_queue_connect at ffffffffa07c5c96 [nvmet_rdma]
#14 [ffff88084d323980] nvmet_rdma_cm_handler at ffffffffa07c6450 [nvmet_rdma]
#15 [ffff88084d3239b0] iw_conn_req_handler at ffffffffa0787480 [rdma_cm]
#16 [ffff88084d323a60] cm_conn_req_handler at ffffffffa0775f06 [iw_cm]
#17 [ffff88084d323ab0] process_event at ffffffffa0776019 [iw_cm]
#18 [ffff88084d323af0] cm_work_handler at ffffffffa0776170 [iw_cm]
#19 [ffff88084d323cb0] process_one_work at ffffffff810a1483
#20 [ffff88084d323d90] worker_thread at ffffffff810a211d
#21 [ffff88084d323ec0] kthread at ffffffff810a6c5c
#22 [ffff88084d323f50] ret_from_fork at ffffffff816e1ebf
Fixes: 632bc3f65081 ("IB/core, RDMA RW API: Do not exceed QP SGE send limit")
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Cc: stable@vger.kernel.org
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Avoid that mapping an sg-list in which the first element has a
non-zero offset triggers an infinite loop when using FMR. This
patch makes the FMR mapping code similar to that of ib_sg_to_pages().
Note: older Mellanox HCAs do not support non-zero offsets for FMR.
See also commit 8c4037b501ac ("IB/srp: always avoid non-zero offsets
into an FMR").
Reported-by: Alex Estrin <alex.estrin@intel.com>
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Document that ib_map_mr_sg() is able to map physically discontiguous
sg-lists as a single MR. Change IB_MR_TYPE_SG_GAPS_REG into
IB_MR_TYPE_SG_GAPS.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@rimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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In MLX qp packets, the LRH (built by the driver) has both a VL field
and an SL field. When building a QP1 packet, the VL field should
reflect the SLtoVL mapping and not arbitrarily contain zero (as is
done now). This bug causes credit problems in IB switches at
high rates of QP1 packets.
The fix is to cache the SL to VL mapping in the driver, and look up
the VL mapped to the SL provided in the send request when sending
QP1 packets.
For FW versions which support generating a port_management_config_change
event with subtype sl-to-vl-table-change, the driver uses that event
to update its sl-to-vl mapping cache. Otherwise, the driver snoops
incoming SMP mads to update the cache.
There remains the case where the FW is running in secure-host mode
(so no QP0 packets are delivered to the driver), and the FW does not
generate the sl2vl mapping change event. To support this case, the
driver updates (via querying the FW) its sl2vl mapping cache when
running in secure-host mode when it receives either a Port Up event
or a client-reregister event (where the port is still up, but there
may have been an opensm failover).
OpenSM modifies the sl2vl mapping before Port Up and Client-reregister
events occur, so if there is a mapping change the driver's cache will
be properly updated.
Fixes: 225c7b1feef1 ("IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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This patch moves mthca vendor's specific structures to
common UAPI folder which will be visible to all consumers.
These structures are used by user-space library driver
(libmthca) and currently manually copied to that library.
This move will allow cross-compile against these files and
simplify introduction of vendor specific data.
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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This patch moves nes vendor's specific structures to
common UAPI folder which will be visible to all consumers.
These structures are used by user-space library driver
(libmlx4) and currently manually copied to that library.
This move will allow cross-compile against these files and
simplify introduction of vendor specific data.
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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This patch moves ocrdma vendor's specific structures to
common UAPI folder which will be visible to all consumers.
These structures are used by user-space library driver
(libmlx4) and currently manually copied to that library.
This move will allow cross-compile against these files and
simplify introduction of vendor specific data.
In addition, it changes types to be __uXX instead of uXX.
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Acked-By: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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This patch moves mlx4 vendor's specific structures to
common UAPI folder which will be visible to all consumers.
These structures are used by user-space library driver
(libmlx4) and currently manually copied to that library.
This move will allow cross-compile against these files and
simplify introduction of vendor specific data.
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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This patch moves cxgb4 vendor's specific structures to
common UAPI folder which will be visible to all consumers.
These structures are used by user-space library driver
(libcxgb4) and currently manually copied to that library.
This move will allow cross-compile against these files and
simplify introduction of vendor specific data.
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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This patch moves cxgb3 vendor's specific structures to
common UAPI folder which will be visible to all consumers.
These structures are used by user-space library driver
(libcxgb3) and currently manually copied to that library.
This move will allow cross-compile against these files and
simplify introduction of vendor specific data.
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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This patch decouples and moves vendors specific structures to
common UAPI folder which will be visible to all consumers.
These structures are used by user-space library driver
(libmlx5) and currently manually copied to that library.
This move will allow cross-compile against these files and
simplify introduction of vendor specific data.
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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In certain cases it's possible to be flooded by warning messages. To
cope with such situations make the ipoib_warn macro be ratelimited.
To prevent accidental limiting of legitimate, bursty messages make
the limit fairly liberal by allowing up to 100 messages in 10 seconds.
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.
The workqueue "wq" queues work item that maps to alias_guid_work.
It has been identity converted.
WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.
The workqueue "wq" queues mulitple work items viz &priv->restart_task,
&priv->cm.rx_reap_task, &priv->cm.skb_task, &priv->neigh_reap_task,
&priv->ah_reap_task, &priv->mcast_task and &priv->carrier_on_task.
The work items require strict execution ordering.
Hence, an ordered dedicated workqueue has been used.
WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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alloc_ordered_workqueue() replaces deprecated
create_singlethread_workqueue().
The workqueue "ipoib_workqueue" that is used for all flush operations
for the device.
WQ_MEM_RECLAIM has been set since the flush operations may need to
complete in order for other network functions to continue, and
the memory reclaim operation might need the network functioning in
order to make progress.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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alloc_ordered_workqueue() replaces deprecated
create_singlethread_workqueue().
The workqueue "event_wq" queues work item &event->event_work and the
workqueue "disconn_wq" queues work item work (maps to
g_cm_core->disconn_wq).
WQ_MEM_RECLAIM has not been set since the workqueues are not being used
on a memory reclaim path.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.
The workqueue "mcg_wq" queues work items &group->work
and &group->timeout_work.
The workqueue "clean_wq" queues work item mcg_clean_task.
Both have been identity converted.
WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.
The workqueue "wq" queues work item &ctx->work and the workqueue "ud_wq"
queues work item &dm[i]->work.
Both the workqueues have been identity converted.
WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.
The workqueue "wq" queues work items &dm[i]->work, &ew->work.
It has been identity converted.
WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.
The workqueue "mlx5_ib_page_fault_wq" queues work item &qp_pfault->work.
It has been identity converted.
WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.
The workqueue "cache->wq" queues work items &ent->work (maps to
cache_work_func) and &ent->dwork(maps to delayed_cache_work_func).
It has been identity converted.
WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.
The workqueue "event_wq" is involved in event handling and queues
i40iw_cm_event_handler.
The workqueue "disconn_wq" is involved in closing connection and queues
i40iw_disconnect_worker.
Both workqueues have been identity converted.
WQ_MEM_RECLAIM has been set to ensure forward progress under memory
pressure.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.
The workqueue "virtchnl_wq" queues work items i40iw_cqp_generic_worker
and i40iw_cqp_manage_hmc_fcn_worker. It has been identity converted.
WQ_MEM_RECLAIM has been set to ensure forward progress under memory
pressure.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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alloc_ordered_workqueue() with WQ_MEM_RECLAIM set, replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.
The workqueue "catas_wq" in triggering a device remove and causing a
device reset when a catastrophic error occurs. It has been identity
converted.
WQ_MEM_RECLAIM has been set to ensure forward progress under memory
pressure.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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