In c4iw_drain_sq/rq(), if the particular queue is already empty
then don't block.
Fixes: ce4af14d94aa ('iw_cxgb4: add queue drain functions')
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The IWCM uses ibdev.iwcm->ifname for registration with the iwarp
port map daemon. But iw_cxgb3 did not initialize this field which
causes intermittent registration failures based on the contents of the
uninitialized memory.
Fixes: c1340e8aa6 ("iw_cxgb3: support for iWARP port mapping")
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The IWCM uses ibdev.iwcm->ifname for registration with the iwarp
port map daemon. But iw_cxgb4 did not initialize this field which
causes intermittent registration failures based on the contents of the
uninitialized memory.
Fixes: 170003c894 ("iw_cxgb4: remove port mapper related code")
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
For set/query MTU port firmware commands the MTU field
is 16 bits, here I changed all the "int mtu" parameters
of the functions wrapping those firmware commands to be u16.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
gcc finds that the i40iw_make_cm_node() function in the recently added
i40iw driver uses an uninitilized variable as an index into an array
if CONFIG_IPV6 is disabled and the driver uses IPv6 mode:
drivers/infiniband/hw/i40iw/i40iw_cm.c: In function 'i40iw_make_cm_node':
drivers/infiniband/hw/i40iw/i40iw_cm.c:2206:52: error: 'arpindex' may be used uninitialized in this function [-Werror=maybe-uninitialized]
ether_addr_copy(cm_node->rem_mac, iwdev->arp_table[arpindex].mac_addr);
As far as I can tell, this code path can not be used because the ipv4
variable is always set with CONFIG_IPV6 is disabled, but it's better
to be sure and prevent the undefined behavior, as well as shut up
that warning in a proper way.
This adds an 'else' clause for the case we get the warning about,
causing the function to return an error in a controlled way.
To avoid adding extra mess with combined io()/#ifdef clauses,
I'm also converting the existing #ifdef into a more readable
if(IS_ENABLED()) check.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: f27b4746f3 ("i40iw: add connection management code")
Acked-by: Mustafa Ismail <Mustafa.ismail@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The previous patch that added a couple of callback functions put
the declarations inside of an #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING,
which causes the build to fail if that option is disabled:
drivers/infiniband/hw/mlx5/main.c: In function 'mlx5_ib_add':
drivers/infiniband/hw/mlx5/main.c:2358:31: error: 'mlx5_ib_get_vf_config' undeclared (first use in this function)
This moves the four declarations below the #ifdef section so they
are always available.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: eff901d30e ("IB/mlx5: Implement callbacks for manipulating VFs")
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Pull more SCSI target updates from Nicholas Bellinger:
"This series contains cxgb4 driver prerequisites for supporting iscsi
segmentation offload (ISO), that will be utilized for a number of
future v4.7 developments in iscsi-target for supporting generic hw
offloads"
* 'for-next-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
cxgb4: update Kconfig and Makefile
cxgb4: add iSCSI DDP page pod manager
cxgb4, iw_cxgb4: move delayed ack macro definitions
cxgb4: move VLAN_NONE macro definition
cxgb4: update struct cxgb4_lld_info definition
cxgb4: add definitions for iSCSI target ULD
cxgb4, cxgb4i: move struct cpl_rx_data_ddp definition
cxgb4, iw_cxgb4, cxgb4i: remove duplicate definitions
cxgb4, iw_cxgb4: move definitions to common header file
cxgb4: large receive offload support
cxgb4: allocate resources for CXGB4_ULD_ISCSIT
cxgb4: add new ULD type CXGB4_ULD_ISCSIT
- A few minor core fixups needed for the next patch series
- The IB SRIOV series. This has bounced around for several versions.
Of note is the fact that the first patch in this series effects
the net core. It was directed to netdev and DaveM for each iteration
of the series (three versions total). Dave did not object, but did
not respond either. I've taken this as permission to move forward
with the series.
- The new Intel X722 iWARP driver
- A huge set of updates to the Intel hfi1 driver. Of particular interest
here is that we have left the driver in staging since it still has an
API that people object to. Intel is working on a fix, but getting
these patches in now helps keep me sane as the upstream and Intel's
trees were over 300 patches apart.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=t2Ko
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull more rdma updates from Doug Ledford:
"Round two of 4.6 merge window patches.
This is a monster pull request. I held off on the hfi1 driver updates
(the hfi1 driver is intimately tied to the qib driver and the new
rdmavt software library that was created to help both of them) in my
first pull request. The hfi1/qib/rdmavt update is probably 90% of
this pull request. The hfi1 driver is being left in staging so that
it can be fixed up in regards to the API that Al and yourself didn't
like. Intel has agreed to do the work, but in the meantime, this
clears out 300+ patches in the backlog queue and brings my tree and
their tree closer to sync.
This also includes about 10 patches to the core and a few to mlx5 to
create an infrastructure for configuring SRIOV ports on IB devices.
That series includes one patch to the net core that we sent to netdev@
and Dave Miller with each of the three revisions to the series. We
didn't get any response to the patch, so we took that as implicit
approval.
Finally, this series includes Intel's new iWARP driver for their x722
cards. It's not nearly the beast as the hfi1 driver. It also has a
linux-next merge issue, but that has been resolved and it now passes
just fine.
Summary:
- A few minor core fixups needed for the next patch series
- The IB SRIOV series. This has bounced around for several versions.
Of note is the fact that the first patch in this series effects the
net core. It was directed to netdev and DaveM for each iteration
of the series (three versions total). Dave did not object, but did
not respond either. I've taken this as permission to move forward
with the series.
- The new Intel X722 iWARP driver
- A huge set of updates to the Intel hfi1 driver. Of particular
interest here is that we have left the driver in staging since it
still has an API that people object to. Intel is working on a fix,
but getting these patches in now helps keep me sane as the upstream
and Intel's trees were over 300 patches apart"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (362 commits)
IB/ipoib: Allow mcast packets from other VFs
IB/mlx5: Implement callbacks for manipulating VFs
net/mlx5_core: Implement modify HCA vport command
net/mlx5_core: Add VF param when querying vport counter
IB/ipoib: Add ndo operations for configuring VFs
IB/core: Add interfaces to control VF attributes
IB/core: Support accessing SA in virtualized environment
IB/core: Add subnet prefix to port info
IB/mlx5: Fix decision on using MAD_IFC
net/core: Add support for configuring VF GUIDs
IB/{core, ulp} Support above 32 possible device capability flags
IB/core: Replace setting the zero values in ib_uverbs_ex_query_device
net/mlx5_core: Introduce offload arithmetic hardware capabilities
net/mlx5_core: Refactor device capability function
net/mlx5_core: Fix caching ATOMIC endian mode capability
ib_srpt: fix a WARN_ON() message
i40iw: Replace the obsolete crypto hash interface with shash
IB/hfi1: Add SDMA cache eviction algorithm
IB/hfi1: Switch to using the pin query function
IB/hfi1: Specify mm when releasing pages
...
Implement the IB defined callbacks used to manipulate the policy for the
link state, set GUIDs or get statistics information. This functionality
is added into a new file that will be used to add any SRIOV related
functionality to the mlx5 IB layer.
The following callbacks have been added:
mlx5_ib_get_vf_config
mlx5_ib_set_vf_link_state
mlx5_ib_get_vf_stats
mlx5_ib_set_vf_guid
In addition, publish whether this device is based on a virtual function.
In mlx5 supported devices, virtual functions are implemented as vHCAs.
vHCAs have their own QP number space so it is possible that two vHCAs
will use a QP with the same number at the same time.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Add a vf parameter to mlx5_core_query_vport_counter so we can call it to
query counters of virtual functions. Also update current users of the
API.
PFs may call mlx5_core_query_vport_counter with other_vport set to
indicate that they are querying a virtual function. The virtual
function to be queried is given by the vf parameter. Virtual function
numbering is zero based so the first VF is 0 and so on. When a PF
queries its own function, the other_vport parameter is cleared.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Fix the condition that dictates when MAD_IFC should be used. According
to firmware specifications, MAD_IFC commands must be used only if the
ib_virt capability is off.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch replaces the obsolete crypto hash interface with shash
and resolves a build failure after merge of the rdma tree
which is caused by the removal of crypto hash interface
Removing CRYPTO_ALG_ASYNC from crypto_alloc_shash(),
because it is by definition sync only
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Pull x86 protection key support from Ingo Molnar:
"This tree adds support for a new memory protection hardware feature
that is available in upcoming Intel CPUs: 'protection keys' (pkeys).
There's a background article at LWN.net:
https://lwn.net/Articles/643797/
The gist is that protection keys allow the encoding of
user-controllable permission masks in the pte. So instead of having a
fixed protection mask in the pte (which needs a system call to change
and works on a per page basis), the user can map a (handful of)
protection mask variants and can change the masks runtime relatively
cheaply, without having to change every single page in the affected
virtual memory range.
This allows the dynamic switching of the protection bits of large
amounts of virtual memory, via user-space instructions. It also
allows more precise control of MMU permission bits: for example the
executable bit is separate from the read bit (see more about that
below).
This tree adds the MM infrastructure and low level x86 glue needed for
that, plus it adds a high level API to make use of protection keys -
if a user-space application calls:
mmap(..., PROT_EXEC);
or
mprotect(ptr, sz, PROT_EXEC);
(note PROT_EXEC-only, without PROT_READ/WRITE), the kernel will notice
this special case, and will set a special protection key on this
memory range. It also sets the appropriate bits in the Protection
Keys User Rights (PKRU) register so that the memory becomes unreadable
and unwritable.
So using protection keys the kernel is able to implement 'true'
PROT_EXEC on x86 CPUs: without protection keys PROT_EXEC implies
PROT_READ as well. Unreadable executable mappings have security
advantages: they cannot be read via information leaks to figure out
ASLR details, nor can they be scanned for ROP gadgets - and they
cannot be used by exploits for data purposes either.
We know about no user-space code that relies on pure PROT_EXEC
mappings today, but binary loaders could start making use of this new
feature to map binaries and libraries in a more secure fashion.
There is other pending pkeys work that offers more high level system
call APIs to manage protection keys - but those are not part of this
pull request.
Right now there's a Kconfig that controls this feature
(CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS) that is default enabled
(like most x86 CPU feature enablement code that has no runtime
overhead), but it's not user-configurable at the moment. If there's
any serious problem with this then we can make it configurable and/or
flip the default"
* 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits)
x86/mm/pkeys: Fix mismerge of protection keys CPUID bits
mm/pkeys: Fix siginfo ABI breakage caused by new u64 field
x86/mm/pkeys: Fix access_error() denial of writes to write-only VMA
mm/core, x86/mm/pkeys: Add execute-only protection keys support
x86/mm/pkeys: Create an x86 arch_calc_vm_prot_bits() for VMA flags
x86/mm/pkeys: Allow kernel to modify user pkey rights register
x86/fpu: Allow setting of XSAVE state
x86/mm: Factor out LDT init from context init
mm/core, x86/mm/pkeys: Add arch_validate_pkey()
mm/core, arch, powerpc: Pass a protection key in to calc_vm_flag_bits()
x86/mm/pkeys: Actually enable Memory Protection Keys in the CPU
x86/mm/pkeys: Add Kconfig prompt to existing config option
x86/mm/pkeys: Dump pkey from VMA in /proc/pid/smaps
x86/mm/pkeys: Dump PKRU with other kernel registers
mm/core, x86/mm/pkeys: Differentiate instruction fetches
x86/mm/pkeys: Optimize fault handling in access_error()
mm/core: Do not enforce PKEY permissions on remote mm access
um, pkeys: Add UML arch_*_access_permitted() methods
mm/gup, x86/mm/pkeys: Check VMAs and PTEs for protection keys
x86/mm/gup: Simplify get_user_pages() PTE bit handling
...
Pull networking updates from David Miller:
"Highlights:
1) Support more Realtek wireless chips, from Jes Sorenson.
2) New BPF types for per-cpu hash and arrap maps, from Alexei
Starovoitov.
3) Make several TCP sysctls per-namespace, from Nikolay Borisov.
4) Allow the use of SO_REUSEPORT in order to do per-thread processing
of incoming TCP/UDP connections. The muxing can be done using a
BPF program which hashes the incoming packet. From Craig Gallek.
5) Add a multiplexer for TCP streams, to provide a messaged based
interface. BPF programs can be used to determine the message
boundaries. From Tom Herbert.
6) Add 802.1AE MACSEC support, from Sabrina Dubroca.
7) Avoid factorial complexity when taking down an inetdev interface
with lots of configured addresses. We were doing things like
traversing the entire address less for each address removed, and
flushing the entire netfilter conntrack table for every address as
well.
8) Add and use SKB bulk free infrastructure, from Jesper Brouer.
9) Allow offloading u32 classifiers to hardware, and implement for
ixgbe, from John Fastabend.
10) Allow configuring IRQ coalescing parameters on a per-queue basis,
from Kan Liang.
11) Extend ethtool so that larger link mode masks can be supported.
From David Decotigny.
12) Introduce devlink, which can be used to configure port link types
(ethernet vs Infiniband, etc.), port splitting, and switch device
level attributes as a whole. From Jiri Pirko.
13) Hardware offload support for flower classifiers, from Amir Vadai.
14) Add "Local Checksum Offload". Basically, for a tunneled packet
the checksum of the outer header is 'constant' (because with the
checksum field filled into the inner protocol header, the payload
of the outer frame checksums to 'zero'), and we can take advantage
of that in various ways. From Edward Cree"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1548 commits)
bonding: fix bond_get_stats()
net: bcmgenet: fix dma api length mismatch
net/mlx4_core: Fix backward compatibility on VFs
phy: mdio-thunder: Fix some Kconfig typos
lan78xx: add ndo_get_stats64
lan78xx: handle statistics counter rollover
RDS: TCP: Remove unused constant
RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket
net: smc911x: convert pxa dma to dmaengine
team: remove duplicate set of flag IFF_MULTICAST
bonding: remove duplicate set of flag IFF_MULTICAST
net: fix a comment typo
ethernet: micrel: fix some error codes
ip_tunnels, bpf: define IP_TUNNEL_OPTS_MAX and use it
bpf, dst: add and use dst_tclassid helper
bpf: make skb->tc_classid also readable
net: mvneta: bm: clarify dependencies
cls_bpf: reset class and reuse major in da
ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c
ldmvsw: Add ldmvsw.c driver code
...
- cxgb4 updates
- nes updates
- unification of iwarp portmapper code to core
- add drain_cq API
- various ib_core updates
- minor ipoib updates
- minor mlx4 updates
- more significant mlx5 updates (including a minor merge conflict with
net-next tree...merge is simple to resolve and Stephen's resolution was
confirmed by Mellanox)
- trivial net/9p rdma conversion
- ocrdma RoCEv2 update
- srpt updates
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=kTkT
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma updates from Doug Ledford:
"Initial roundup of 4.6 merge window patches.
This is the first of two pull requests. It is the smaller request,
but touches for more different things (this is everything but what is
in or going into staging). The pull request for the code in
staging/rdma is on hold until after we decide what to do on the
write/writev API issue and may be partially deferred until 4.7 as a
result.
Summary:
- cxgb4 updates
- nes updates
- unification of iwarp portmapper code to core
- add drain_cq API
- various ib_core updates
- minor ipoib updates
- minor mlx4 updates
- more significant mlx5 updates (including a minor merge conflict
with net-next tree...merge is simple to resolve and Stephen's
resolution was confirmed by Mellanox)
- trivial net/9p rdma conversion
- ocrdma RoCEv2 update
- srpt updates"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (85 commits)
iwpm: crash fix for large connections test
iw_cxgb3: support for iWARP port mapping
iw_cxgb4: remove port mapper related code
iw_nes: remove port mapper related code
iwcm: common code for port mapper
net/9p: convert to new CQ API
IB/mlx5: Add support for don't trap rules
net/mlx5_core: Introduce forward to next priority action
net/mlx5_core: Create anchor of last flow table
iser: Accept arbitrary sg lists mapping if the device supports it
mlx5: Add arbitrary sg list support
IB/core: Add arbitrary sg_list support
IB/mlx5: Expose correct max_fast_reg_page_list_len
IB/mlx5: Make coding style more consistent
IB/mlx5: Convert UMR CQ to new CQ API
IB/ocrdma: Skip using unneeded intermediate variable
IB/ocrdma: Skip using unneeded intermediate variable
IB/ocrdma: Delete unnecessary variable initialisations in 11 functions
IB/core: Documentation fix in the MAD header file
IB/core: trivial prink cleanup.
...
Pull trivial tree updates from Jiri Kosina.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
drivers/rtc: broken link fix
drm/i915 Fix typos in i915_gem_fence.c
Docs: fix missing word in REPORTING-BUGS
lib+mm: fix few spelling mistakes
MAINTAINERS: add git URL for APM driver
treewide: Fix typo in printk
Kconfig and Makefile needed to build iwarp module.
Changes since v2:
moved from Kbuild to Makefile
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
i40iw_vf.[ch] and i40iw_virtchnl[ch] are used for virtual
channel support for iWARP VF module.
Changes since v2:
code cleanup
Acked-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
i40iw_user.h and i40iw_uk.c are used by both user library as well as
kernel requests.
Acked-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
i40iw_ctrl.c provides for hardware wqe support and cqp.
Changes since v2:
cleanup coccinelle error reported by Julia Lawall
Changes since v1:
reported by Christoph Hellwig's review
-remove unnecessary casts
Acked-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Removei/change for port mapper code which has been moved to iwcm.
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Now with the new iWARP port mapping service in the iwcm, it is
trivial to add cxgb3 support.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Now that most of the port mapper code been moved to iwcm, we can remove
it from iw_cxgb4.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Now that most of the port mapper code been moved to iwcm, we can
remove it from port mapper service user drivers.
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Tatyana E. Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The non-rdamvt versions of qib and hfi1 allow for a differing
heuristic to override a schedule progress in favor of a direct
call the the progress routine.
This patch adds that for both drivers and rdmavt.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
If SMI AH is not destroyed before de-allocating the PD, it would result in
non-zero PD use count when de-allocating the PD, triggering a WARN_ON() at
drivers/infiniband/core/verbs.c:284 ib_dealloc_pd+0x69/0xb0 [ib_core]()
when unloading the qib driver on systems with dual-port card.
This problem has always been there in qib and was detected only after the
commit 7dd78647a2 ("IB/core: Make ib_dealloc_pd return void") introduced
a WARN_ON in ib_dealloc_pd() that triggers if a PD's use count is non-zero
before de-allocating the PD.
Below is the call trace from the dmesg log.
[ 7264.966129] Call Trace:
[ 7264.969652] [<ffffffff81338470>] dump_stack+0x44/0x64
[ 7264.976181] [<ffffffff81086bb6>] warn_slowpath_common+0x86/0xc0
[ 7264.983656] [<ffffffff81086cfa>] warn_slowpath_null+0x1a/0x20
[ 7264.990961] [<ffffffffa025c2d9>] ib_dealloc_pd+0x69/0xb0 [ib_core]
[ 7264.998717] [<ffffffffa0044de8>] ib_mad_port_close+0xb8/0x120 [ib_mad]
[ 7265.006866] [<ffffffffa0044ebf>] ib_mad_remove_device+0x6f/0xc0 [ib_mad]
[ 7265.015224] [<ffffffffa025fc87>] ib_unregister_device+0xa7/0x140 [ib_core]
[ 7265.023738] [<ffffffffa04b5b79>] rvt_unregister_device+0x29/0x80 [rdmavt]
[ 7265.032181] [<ffffffffa088d2a2>] qib_unregister_ib_device+0x22/0x210 [ib_qib]
[ 7265.040993] [<ffffffffa085f73f>] qib_remove_one+0x1f/0x250 [ib_qib]
[ 7265.048823] [<ffffffff8137a319>] pci_device_remove+0x39/0xc0
[ 7265.055984] [<ffffffff81466a1a>] __device_release_driver+0x9a/0x140
[ 7265.063821] [<ffffffff81466bc8>] driver_detach+0xb8/0xc0
[ 7265.070579] [<ffffffff81465a15>] bus_remove_driver+0x55/0xd0
[ 7265.077717] [<ffffffff8146732c>] driver_unregister+0x2c/0x50
[ 7265.084849] [<ffffffff813789ba>] pci_unregister_driver+0x2a/0x80
[ 7265.092366] [<ffffffffa08921bd>] qib_ib_cleanup+0x37/0x65 [ib_qib]
[ 7265.100068] [<ffffffff811096d0>] SyS_delete_module+0x190/0x220
[ 7265.107379] [<ffffffff816a7bae>] entry_SYSCALL_64_fastpath+0x12/0x71
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Rdmavt adopted an smi_ah from qib which is not needed by hfi1. Move this
back to qib and get it out of the common library.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Qib needs to be notified when mad agents are created and freed, there is
some counter maintenance that needs to be performed. Add those callbacks at
registration time with rdmavt.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch adds an additional lock to reduce contention on the s_lock.
This lock is used in post_send() so that the post_send is not
serialized with the send engine and other send related processing.
To do this the s_next_psn is now maintained on post_send() while
post_send() related fields are moved to a new cache line. There is
an s_avail maintained for the post_send() to mitigate trading cache
lines with the send engine. The lock is released/acquired around
releasing the just built packet to the egress mechanism.
Reviewed-by: Jubin John <jubin.john@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This would avoid conflict with the functions in hfi1 that have similar
names when both qib and hfi1 drivers are configured to be built into
the kernel. This issue came up in the 0-day build report.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Replace the timer API's to initialize a timer & then assign the callback
function by the setup_timer() API.
Signed-off-by: Hari Prasath Gujulan Elango <hgujulan@visteon.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch is a prerequisite for adding a separate lock
for post send.
The timing of updating s_last needs to be before returning
any send completion to avoid a race between a poll cq seeing
a completion and the post send checking for a full queue.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Use the new RNR timer for hfi1.
For qib, this timer doesn't exist, so exploit driver
callbacks to use the new timer as appropriate.
Reviewed-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Delete code from query_port which has been moved into rvt_query_port
Create a call back function to shut down a port which may be called from
rvt_modify_port
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Query gid is in rdmavt, but still relies on the driver to maintain the
guid table. Add the necessary driver call back and remove the existing
verb handler.
Reviewed-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Destroy QP functionality in rdmavt will be used instead.
Remove the remove_qp function being called exclusively by destroy qp code.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Modify queue pair functionality in rdmavt will be used instead.
Remove ancillary functions which are being used by modify QP code.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Add calls to rcu_read_lock()/rcu_read_unlock() as rvt_lookup_qpn callers
must hold the rcu_read_lock before calling and keep the lock until the
returned qp is no longer in use.
Remove lookaside qp and some qp refcount atomics in the sdma send code
that is redundant with the s_dma_busy refcount, which will also stall
the state processing to the reset state.
Change the qpn hash function to hash_32 which is hash function used
in rvt_lookup_qpn. qpn_hash function would be eliminated in later patches.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Remove some of the unnecessary code from qib_register_ib_device.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
srq functionality is now in rdmavt. Remove it from the qib driver.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Rely on rvt_query_qp function defined in rdmavt
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Multicast is now supported by rdmavt. Remove the verbs multicast functions
and use that.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch removes the simple post recv function in favor of using rdmavt.
The packet receive processing still lives in the driver though.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch removes the post_send and post_one_send from the qib driver.
The "posting" of sends will be done by rdmavt which will walk a WQE and
queue work. This patch will still provide the capability to schedule that
work as well as kick the progress. These are provided to the rdmavt layer.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Use the completion queue functionality provided by rdmavt.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Get rid of create and free mad agent from the driver and use rdmavt
version.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
No longer do drivers need to call into the IB core to allocate the verbs
device. Use the functionality provided by rdmavt.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Rely on rdmavt functions for creation of qp and qp table. Function to
allocate a qpn is still being provided by qib as the algorithm to allocate
a qpn in qib is different from that of the algorithm in rdmavt.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Use the definitions of the s_flags and r_flags which are now in rdmavt.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Removed qib_query_device function to use rdmavt rvt_query_device function
The device attributes still need to be filled in by the driver.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
IB user context alloc and dealloc functions have been added to rdmavt.
Delete the QIB user context alloc/dealloc functions and use the ones in
rdmavt.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch removes the private queue pair structure and the table which
holds the queue pair numbers in favor of using what is provided by rdmavt.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Remove qib query pkey function which is no longer needed as this is now
being done in rdmavt. The allocation and maintenance of the list still
resides in the driver.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Since mmap functionality has been moved into rdmavt, its time for qib to
use that.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Additional work is required to create an AH. This patch adds support to
set the VL correctly.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Remove several ibport members from qib and use the rdmavt version. rc_acks,
rc_qacks, and rc_delayed_comp are defined as per CPU variables in rdmavt.
Add support for these rdmavt per CPU variables which were not per cpu
variables in qib ibport structure.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Remove srq from qib now that it has been moved into rdmavt.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Original patch from Kamal Heib <kamalh@mellanox.com>, split
apart from original.
Remove AH from qib and use rdmavt version.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Remove qp and mr support from qib and use rdmavt. These two changes
cannot be reasonably be split apart into separate patches because they
depend on each other in mulitple places. This paves the way to remove
even more functions in subsequent patches.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Implement get_card_name and get_pci_dev helper functions for rdmavt
for qib.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In preparation for moving the queue pair data structure to rdmavt the
members of the driver specific queue pairs which are not common need to be
pushed off to a private driver structure. This structure will be available
in the queue pair once moved to rdmavt as a void pointer. This patch while
not adding a lot of value in and of itself is a prerequisite to move the
queue pair out of the drivers and into rdmavt.
The driver specific, private queue pair data structure should condense as
more of the send side code moves to rdmavt.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Original patch for AH changes from Kamal Heib <kamalh@mellanox.com>, split
apart from original. This patch also removes the qib specific multicast
lid base and permissive lid defines since they are no longer needed.
Use common LID defines in qib driver.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch removes most of the uses of QIB_PERMISSIBVE_LID and
QIB_MULTICAST_LID_BASE in favor of the recently added IB_* versions.
There are still minor uses in AH functions as well as the QIB_* defines
but those will be removed in a follow on patch.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Remove protection domain datastructure from qib and use rdmavts version.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch removes the qib_dma.c file and uses the version which has been
added to rdmavt.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch begins to make use of rdmavt by registering with it and
providing access to the header files. This is just the beginning of
rdmavt support in qib.
Most functionality is still being done in the driver, set flags so that
rdmavt will let qib continue to handle mr, qp, and cq init.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Each bypass flow steering priority will be split into two priorities:
1. Priority for don't trap rules.
2. Priority for normal rules.
When user creates a flow using IB_FLOW_ATTR_FLAGS_DONT_TRAP flag, the
driver creates two flow rules, one used for receiving the traffic and
the other one for forwarding the packet to continue matching in lower
or equal priorities.
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Several cases of overlapping changes, as well as one instance
(vxlan) of a bug fix in 'net' overlapping with code movement
in 'net-next'.
Signed-off-by: David S. Miller <davem@davemloft.net>
- One fix to an error path in the core
- One fix for RoCE in the core
- Two related fixes for the core/mlx5
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=e9oB
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma fixes from Doug Ledford:
"Additional 4.5-rc6 fixes.
I have four patches today. I had previously thought I had submitted
two of them last week, but they were accidentally skipped :-(.
- One fix to an error path in the core
- One fix for RoCE in the core
- Two related fixes for the core/mlx5"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
IB/core: Use GRH when the path hop-limit > 0
IB/{core, mlx5}: Fix input len in vendor part of create_qp/srq
IB/mlx5: Avoid using user-index for SRQs
IB/core: Fix missed clean call in registration path
Allocate proper context for arbitrary scatterlist registration
If ib_alloc_mr is called with IB_MR_MAP_ARB_SG, the driver
allocate a private klm list instead of a private page list.
Set the UMR wqe correctly when posting the fast registration.
Also, expose device cap IB_DEVICE_MAP_ARB_SG according to the
device id (until we have a FW bit that correctly exposes it).
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
While documentation indicates that the number of translation
entries per memory key is unlimited, in practice, we can
only fit a finite amount of translation entries in a single
registration wqe (which is log_max_klm_list_size).
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
These three related functions can't agree whether to put the
umrwr on the stack dirty and then memset it, or to initialize
it on the stack. Make them all agree.
Signed-off-by: Doug Ledford <dledford@redhat.com>
Simplifies the code, and makes it more fair vs other users by using a
softirq for polling.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Haggai Eran <haggaie@mellanox.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The new NET_DEVLINK infrastructure can be a loadable module, but the drivers
using it might be built-in, which causes link errors like:
drivers/net/built-in.o: In function `mlx4_load_one':
:(.text+0x2fbfda): undefined reference to `devlink_port_register'
:(.text+0x2fc084): undefined reference to `devlink_port_unregister'
drivers/net/built-in.o: In function `mlxsw_sx_port_remove':
:(.text+0x33a03a): undefined reference to `devlink_port_type_clear'
:(.text+0x33a04e): undefined reference to `devlink_port_unregister'
There are multiple ways to avoid this:
a) add 'depends on NET_DEVLINK || !NET_DEVLINK' dependencies
for each user
b) use 'select NET_DEVLINK' from each driver that uses it
and hide the symbol in Kconfig.
c) make NET_DEVLINK a 'bool' option so we don't have to
list it as a dependency, and rely on the APIs to be
stubbed out when it is disabled
d) use IS_REACHABLE() rather than IS_ENABLED() to check for
NET_DEVLINK in include/net/devlink.h
This implements a variation of approach a) by adding an
intermediate symbol that drivers can depend on, and changes
the three drivers using it.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 09d4d087cd ("mlx4: Implement devlink interface")
Fixes: c4745500e9 ("mlxsw: Implement devlink interface")
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Return the value from a call of the ocrdma_mbx_modify_qp() function
without using an extra assignment for the local variable "status".
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Return zero at the end without using the local variable "status".
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The variable "status" will be set to an appropriate value a bit later.
Thus let us omit the explicit initialisation at the beginning.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Currently, the inlen field of the vendor's part of the command
doesn't match the command buffer. This happens because the inlen
accommodates ib_uverbs_cmd_hdr which is deducted from the in buffer.
This is problematic since the vendor function could be called either
from the legacy verb (where the input length mismatches the actual
length) or by the extended verb (where the length matches). The vendor
has no idea which function calls it and therefore has no way to know
how the length variable should be treated.
Fixing this by aligning the inlen to the correct length.
All vendor drivers either assumed that inlen >= sizeof(vendor_uhw_cmd)
or just failed wrongly (mlx5) and fixed in this patch.
Fixes: cfb5e088e2 ('IB/mlx5: Add CQE version 1 support to user QPs and SRQs')
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Normal SRQs, unlike XRC SRQs, don't have user-index, therefore
avoid verifying it and using it.
Fixes: cfb5e088e2 ('IB/mlx5: Add CQE version 1 support to user QPs and SRQs')
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Implement newly introduced devlink interface. Add devlink port instances
for every port and set the port types accordingly.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
v2->v3:
-add dev param to devlink_register (api change)
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds user-space support for memory windows allocation and
deallocation. It also exposes the supported types via
query_device_caps verb.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Tested-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Passing udata to the vendor's driver in order to pass data from the
user-space driver to the kernel-space driver. This data will be
used in downstream patches.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Mlx5's mkey mechanism is also used for memory windows.
The current code base uses MR (memory region) naming, which is
inaccurate. Changing MR to mkey in order to represent its different
usages more accurately.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch adds support for re-registration of memory regions in MLX5.
The functionality is basically the same as deregister followed by
register, but attempts to reuse the existing resources as much as
possible.
Original memory keys are kept if possible, saving the need to
communicate new ones to remote peers.
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In order to add re-registration of memory region, some logic was
extracted to separate functions:
- ODP related logic.
- Some of the UMR WQE preparation code.
- DMA mapping.
- Umem creation.
- Creating MKey using FW interface.
- MR fields assignments after successful creation.
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Now that the transmission of GSI MADs is done with the special transmission
QPs, eliminate the send buffers in the GSI receive QP.
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Pick the QP to use according to the wr.ud.pkey_index field in the work
request. If the QP doesn't exist, it means the P_Key is zero and the packet
would have been dropped, so just generate a completion and move on.
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The emulated GSI QP's send completions are generated by multiple hardware
QPs, so their completions could arrive out of order with respect to the
order their work request were submitted.
Reorder the completions by keeping a list of the posted work request and
their completions. A newly received completion from the hardware updates
the list and marks its work request as completed. However, the completions
are only reported to the client according to the list order.
In order to support that, create a new private CQ to handle the hardware
completions.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The GSI QP emulation requires also emulating completions for transmitted
MADs. The CQ on which these completions are generated can also be used by
the hardware, and the MAD layer is free to use any CQ of the device for the
GSI QP.
Add a method for generating software completions to each mlx5 CQ. Software
completions are polled first, and generate calls to the completion handler
callback if necessary.
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Whenever the P_Key table is changed, we create the required GSI
transmission QPs on-demand.
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In order to send GSI MADs on different P_Keys, mlx5 needs different QPs to
be created, each with a different P_Key set when the QP is modified to the
INIT state.
Create QPs for each non-zero P_Key in the P_Key table.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
mlx5 creates special GSI QPs that has limited ability to control the P_Key
of transmitted packets. The sent P_Key is taken from the QP object,
similarly to what happens with regular UD QPs.
Create a software wrapper around GSI QPs that with the following patches
will be able to emulate the functionality of a GSI QP including control of
the P_Key per work request.
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Add debugging prints to the modify QP verb to help understand the cause a
returned error.
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In order to create multiple GSI QPs, we need to set the source QP number to
one on all these QPs. Add the necessary definitions and infrastructure to
do that.
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The driver checks the csum from the HW when completion arrived and marks
it in the wc->wc_flags field for the ulp drivers.
These is for packets from type IB_WC_RECV only.
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In order to support LSO and CSUM in the TX flow the driver does the
following:
* LSO bit for the enum mlx5_ib_qp_flags was added, indicates QP that
supports LSO offloads.
* Enables the special offload when the QP is created, and enable the
special work request id (IB_WR_LSO) when comes.
* Calculates the size of the WQE according to the new WQE format that
support these offloads.
* Handles the new WQE format when arrived, sets the relevant
fields, and copies the needed data.
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Modify mlx5_ib_process_mad to use PPCNT and query_vport commands
instead of MAD_IFC, as MAD_IFC is deprecated on new firmware
versions (and doesn't support RoCE anyway).
Traffic counters exist in both 32-bit and 64-bit forms.
Declaring support of extended coutners results in traffic counters
to be read in their 64-bit form only via the query_vport command.
Error counters exist only in 32-bit form and read via PPCNT command.
This commit also adds counters support in RoCE.
Signed-off-by: Meny Yossefi <menyy@mellanox.com>
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch adds support to create RoCE-v2 compatible AH. It uses ahid
field to tell network-header-type to user space library. The library
has to decode network-header-type from ahid field.
Signed-off-by: Somnath Kotur <somnath.kotur@avagotech.com>
Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch implements following changes to support RoCE-v2
in the RC path:
* Get the GID-type for a given sgid.
* Based on the GID-type get IPv4/IPv6 L3-address
and give those to underlying device.
* Resolve and provide network header type to device.
Signed-off-by: Somnath Kotur <somnath.kotur@avagotech.com>
Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch adds following changes to support RoCE-v2
in the UD path.
* During AH creation GID-type is resolved for a given gid-index.
* Based on GID-type protocol header is built.
* Work completion reports network header type and set
IB_WC_WITH_NETWORK_HDR_TYPE flag in wc->wc_flags to indicate
that the network header type is valid.
Signed-off-by: Somnath Kotur <somnath.kotur@avagotech.com>
Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Add support to read device configuration and initialize port-immutables
to report UDP-Encap flag during port query.
Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Somnath Kotur <somnath.kotur@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Since create_singlethread_workqueue uses kzalloc internally,
it can fail when the system is under memory pressure, so need
to handle it.
Signed-off-by: Insu Yun <wuninsu@gmail.com>
Reviewed-by: Leon Romanovsky <leon@leon.nu>
Signed-off-by: Doug Ledford <dledford@redhat.com>
GRO is simpler to use than the old inet_lro library, and is compatible
with forwarding and bridging configurations.
Compile-tested only.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Add support for receiving multicast/unicast traffic with
the don't trap rule.
Sniffing these packets requires a flow steering rule of type NORMAL
at priority 0 with flag IB_FLOW_ATTR_FLAGS_DONT_TRAP set.
Choosing between multicast or unicast is done via ethernet L2 dest_mac
mask and value:
- If mask is all zeros - unicast and multicast are set.
- If mask non zero - only mask with multicast bit 1 and rest 0 is
supported, the mac value will choose if it is
multicast or unicast rule.
If the mask multicast bit is on and some other bits are on too, it means
a request for specific multicast or unicast, this is not supported,
either receive all multicast or all unicast.
Only when limitations are met registered QP will receive requested type
but other QPs can receive same traffic if registered for it.
Otherwise, if limitations are not met, an error will be returned.
Limitations:
- Rule must be with priority 0.
- A0 mode is not supported.
- Sniffer QP cannot appear in any other flow steering rule.
Signed-off-by: Marina Varshaver <marinav@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Don't trap flag (i.e. IB_FLOW_ATTR_FLAGS_DONT_TRAP) indicates that QP
will receive traffic, but will not steal it.
When a packet matches a flow steering rule that was created with
the don't trap flag, the QPs assigned to this rule will get this
packet, but matching will continue to other equal/lower priority
rules. This will let other QPs assigned to those rules to get the
packet too.
If both don't trap rule and other rules have the same priority
and match the same packet, the behavior is undefined.
The don't trap flag can't be set with default rule types
(i.e. IB_FLOW_ATTR_ALL_DEFAULT, IB_FLOW_ATTR_MC_DEFAULT) as default rules
don't have rules after them and don't trap has no meaning here.
Signed-off-by: Marina Varshaver <marinav@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Wall time obtained from ktime_get_real_ns is susceptible to sudden jumps due to
user setting the time or due to NTP. Boot time is constantly increasing time
better suited for comparing two timestamps.
Signed-off-by: Abhilash Jindal <klock.android@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
i40iw_verbs.[ch] are to handle iwarp interface.
Changes since v2:
Made infiniband interface changes for 4.5
removed i40iw_reg_phys_mr() for 4.5
made changes as made by Christoph Hellwig made for nes
in i40iw_get_dma_mr().
Changes since v1:
Following modification based on Christoph Hellwig's feedback
-remove kmap() calls and moved to i40iw_cm.c.
-cleanup some of casts
Acked-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
i40iw_hw.c, i40iw_utils.c and i40iw_osdep.h are files to handle
interrupts and processing.
Changes since v1:
Cleanup/removed some macros reported by Christoph Hellwig.
Acked-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
i40iw_hmc.[ch] are to manage hmc for the device.
Acked-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
i40iw_cm.c i40iw_cm.h are used for connection management.
changes since v2:
Implemented interface changes as reg_phys_mr() is
not part of inifiniband interface Done as
Christoph Hellwig <hch@infradead.org> did for nes.
Changes since v1:
improved casts
moved kmap() from i40iw_verbs.c to make them short
lived.
Acked-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
i40iw_main.c contains routines for i40e <=> i40iw interface and setup.
i40iw.h is header file for main device data structures.
i40iw_status.h is for return status codes.
Changes from v2:
more cast improvement
fixed timing issue during unload
added paramater change call from i40e
Changes from v1:
improved casting issues
do not print error using pr_err
change from bits to bool in i40iw_cqp_request{}
Acked-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Add completion objects, named sq_drained and rq_drained, to the c4iw_qp
struct. The queue-specific completion object is signaled when the last
CQE is drained from the CQ for that queue.
Add c4iw_drain_sq() to block until qp->rq_drained is completed.
Add c4iw_drain_rq() to block until qp->sq_drained is completed.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The cxgb4 prints an MMIO resource using the "0x%x" and "%p" format
strings on the length and start, respective, but that
triggers a compiler warning when using a 64-bit resource_size_t
on a 32-bit architecture:
drivers/infiniband/hw/cxgb4/device.c: In function 'c4iw_rdev_open':
drivers/infiniband/hw/cxgb4/device.c:807:7: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
(void *)pci_resource_start(rdev->lldi.pdev, 2),
This changes the format string to use %pR instead, which pretty-prints
the resource, avoids the warning and is shorter.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The max depth of a fastreg mr depends on whether the device supports
DSGL or not. So compute it dynamically based on the device support and
the module use_dsgl option.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This series provides support for iWARP applications to specify a TOS
value and have that map to a VLAN Priority for iw_cxgb4 iWARP connections.
In iw_cxgb4, when allocating an L2T entry, pass the skb_priority based
on the tos value in the cm_id. Also pass the correct tos value during
connection setup so the passive side gets the client's desired tos.
When sending the FLOWC work request to FW, if the egress device is
in a vlan, then use the vlan priority bits as the scheduling class.
This allows associating RDMA connections with scheduling classes to
provide traffic shaping per flow.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Don't log errors if a listening endpoint is going away when procesing a
PASS_ACCEPT_REQ message. This can happen. Change the error printk to
a PDBG() debug log entry
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Rename local mm* variables to more meaningful names
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
All the device physical port access functions are implemented in the
port.c file.
We just extract the exposure of these functions from driver.h into a
dedicated header file called port.h.
Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Conflicts:
drivers/net/phy/bcm7xxx.c
drivers/net/phy/marvell.c
drivers/net/vxlan.c
All three conflicts were cases of simple overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
"Looks like a lot, but mostly driver fixes scattered all over as usual.
Of note:
1) Add conditional sched in nf conntrack in cleanup to avoid NMI
watchdogs. From Florian Westphal.
2) Fix deadlock in nfnetlink cttimeout, also from Floarian.
3) Fix handling of slaves in bonding ARP monitor validation, from Jay
Vosburgh.
4) Callers of ip_cmsg_send() are responsible for freeing IP options,
some were not doing so. Fix from Eric Dumazet.
5) Fix per-cpu bugs in mvneta driver, from Gregory CLEMENT.
6) Fix vlan handling in mv88e6xxx DSA driver, from Vivien Didelot.
7) bcm7xxx PHY driver bug fixes from Florian Fainelli.
8) Avoid unaligned accesses to protocol headers wrt. GRE, from
Alexander Duyck.
9) SKB leaks and other problems in arc_emac driver, from Alexander
Kochetkov.
10) tcp_v4_inbound_md5_hash() releases listener socket instead of
request socket on error path, oops. Fix from Eric Dumazet.
11) Missing socket release in pppoe_rcv_core() that seems to have
existed basically forever. From Guillaume Nault.
12) Missing slave_dev unregister in dsa_slave_create() error path,
from Florian Fainelli.
13) crypto_alloc_hash() never returns NULL, fix return value check in
__tcp_alloc_md5sig_pool. From Insu Yun.
14) Properly expire exception route entries in ipv4, from Xin Long.
15) Fix races in tcp/dccp listener socket dismantle, from Eric
Dumazet.
16) Don't set IFF_TX_SKB_SHARING in vxlan, geneve, or GRE, it's not
legal. These drivers modify the SKB on transmit. From Jiri Benc.
17) Fix regression in the initialziation of netdev->tx_queue_len.
From Phil Sutter.
18) Missing unlock in tipc_nl_add_bc_link() error path, from Insu Yun.
19) SCTP port hash sizing does not properly ensure that table is a
power of two in size. From Neil Horman.
20) Fix initializing of software copy of MAC address in fmvj18x_cs
driver, from Ken Kawasaki"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (129 commits)
bnx2x: Fix 84833 phy command handler
bnx2x: Fix led setting for 84858 phy.
bnx2x: Correct 84858 PHY fw version
bnx2x: Fix 84833 RX CRC
bnx2x: Fix link-forcing for KR2
net: ethernet: davicom: fix devicetree irq resource
fmvj18x_cs: fix incorrect indexing of dev->dev_addr[] when copying the MAC address
Driver: Vmxnet3: Update Rx ring 2 max size
net: netcp: rework the code for get/set sw_data in dma desc
soc: ti: knav_dma: rename pad in struct knav_dma_desc to sw_data
net: ti: netcp: restore get/set_pad_info() functionality
MAINTAINERS: Drop myself as xen netback maintainer
sctp: Fix port hash table size computation
can: ems_usb: Fix possible tx overflow
Bluetooth: hci_core: Avoid mixing up req_complete and req_complete_skb
net: bcmgenet: Fix internal PHY link state
af_unix: Don't use continue to re-execute unix_stream_read_generic loop
unix_diag: fix incorrect sign extension in unix_lookup_by_ino
bnxt_en: Failure to update PHY is not fatal condition.
bnxt_en: Remove unnecessary call to update PHY settings.
...
GRO is simpler to use than the old inet_lro library, and is compatible
with forwarding and bridging configurations.
Compile-tested only.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
problem description:
The current code sets UAR page size equal to system page size.
The ConnectX-3 and ConnectX-3 Pro HWs require minimum 128 UAR pages.
The mlx4 kernel drivers are not loaded if there is less than 128 UAR pages.
solution:
Always set UAR page to 4KB. This allows more UAR pages if the OS
has PAGE_SIZE larger than 4KB. For example, PowerPC kernel use 64KB
system page size, with 4MB uar region, there are 4MB/2/64KB = 32
uars (half for uar, half for blueflame). This does not meet minimum 128
UAR pages requirement. With 4KB UAR page, there are 4MB/2/4KB = 512 uars
which meet the minimum requirement.
Note that only codes in mlx4_core that deal with firmware know that uar
page size is 4KB. Codes that deal with usr page in cq and qp context
(mlx4_ib, mlx4_en and part of mlx4_core) still have the same assumption
that uar page size equals to system page size.
Note that with this implementation, on 64KB system page size kernel, there
are 16 uars per system page but only one uars is used. The other 15
uars are ignored because of the above assumption.
Regarding SR-IOV, mlx4_core in hypervisor will set the uar page size
to 4KB and mlx4_core code in virtual OS will obtain the uar page size from
firmware.
Regarding backward compatibility in SR-IOV, if hypervisor has this new code,
the virtual OS must be updated. If hypervisor has old code, and the virtual
OS has this new code, the new code will be backward compatible with the
old code. If the uar size is big enough, this new code in VF continues to
work with 64 KB uar page size (on PowerPc kernel). If the uar size does not
meet 128 uars requirement, this new code not loaded in VF and print the same
error message as the old code in Hypervisor.
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Report that driver supports IB_PMA_CLASS_CAP_EXT_WIDTH in respond for
IB_MGMT_CLASS_PERF_MGMT mad with IB_PMA_CLASS_PORT_INFO attr id.
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When attribute IB_PMA_PORT_COUNTERS_EXT is set, we now return 64 bit
values for the counters.
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Today ocrdma driver defer arming the CQ till poll is called.
This was used to prevent calling poll-cq on an armed CQ.
Recently a set of new CQ API has been introduced into the linux
kernel. The implementation of this API guarantees that a given
CQ is never armed before calling poll on it. Most of the kernel
ULPs have already moved to use this new API or have a code where
poll is called before arming the CQ.
Thus, the above workaround in ocrdma is not needed anymore.
This patch removes the additional logic to deffer arm till poll
is called. This patch adds a simple scheme where ib_req_notify_cq()
will actually arm the cq.
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
We will soon modify the vanilla get_user_pages() so it can no
longer be used on mm/tasks other than 'current/current->mm',
which is by far the most common way it is called. For now,
we allow the old-style calls, but warn when they are used.
(implemented in previous patch)
This patch switches all callers of:
get_user_pages()
get_user_pages_unlocked()
get_user_pages_locked()
to stop passing tsk/mm so they will no longer see the warnings.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: jack@suse.cz
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/20160212210156.113E9407@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This patch fix spelling typos found in printk and Kconfig.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Fix the RC QPs send queue overhead computation to take into account
two additional segments in the WQE which are needed for registration
operations.
The ATOMIC and UMR segments can't coexist together, so chose maximum out
of them.
The commit 9e65dc371b ("IB/mlx5: Fix RC transport send queue overhead
computation") was intended to update RC transport as commit messages
states, but added the code to UC transport.
Fixes: 9e65dc371b ("IB/mlx5: Fix RC transport send queue overhead computation")
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This series provides support for iWARP applications to specify a TOS
value and have that map to a VLAN Priority for iw_cxgb4 iWARP connections.
In iw_cxgb4, when allocating an L2T entry, pass the skb_priority based
on the tos value in the cm_id. Also pass the correct tos value during
connection setup so the passive side gets the client's desired tos.
When sending the FLOWC work request to FW, if the egress device is
in a vlan, then use the vlan priority bits as the scheduling class.
This allows associating RDMA connections with scheduling classes to
provide traffic shaping per flow.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Don't log errors if a listening endpoint is going away when procesing a
PASS_ACCEPT_REQ message. This can happen. Change the error printk to
a PDBG() debug log entry
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rename local mm* variables to more meaningful names
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
During the ocrdma device remove sequence, the debugfs directory
tree of each ocrdma device needs to be removed. Use
debugfs_remove_recursive instead of debugfs_remove.
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Currently returning the pkey value instead of pkey index.
pkey index is always zero since ocrdma supports only default
pkey.
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
max_sge_rd is used by some of the ULPs to calculate the maximum
number of SGEs that can be used for RDMA READ. Populating this
value in the response of query_device verb. Also, avoid checking
the max_srq_sge while populating max_sge.
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In the latest kernel, process_mad hook of the driver can be invoked as
soon as device is registered. In this hook, ocrdma driver is issuing a
command to get the stats counters from the HW. This is triggering system
crash since the statistics command resources are not allocated by the driver.
Changing the sequence of initialization to avoid this crash.
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
MLX5_GET64 was used on end_padding_mode, which is a 2-bit field.
This is wrong as the calculated offset is incorrect. Using MLX5_GET
instead of MLX5_GET64 to fix that.
Fixes: 0fb2ed66a1 ('IB/mlx5: Add create and destroy functionality
for Raw Packet QP')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When a Raw Ethernet QP is created, a NULL pointer PD could be used.
Fixing that by only using the PD after validating it's valid.
smatch also reported this error:
drivers/infiniband/hw/mlx5/qp.c:1629 mlx5_ib_create_qp()
error: we previously assumed 'pd' could be null (see line 1616)
Fixes: 0fb2ed66a1 ('IB/mlx5: Add create and destroy functionality for Raw Packet QP')
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Older libraries that don't have all the new req_v2 fields
should be able to work as well. Today, if the library uses v2, it
will fail to allocate context since the size of reqlen is smaller
than the req_v2 size.
Fix the validation to be with the original req_v2 size and not
the current.
Fixes: f72300c56c ('IB/mlx5: Expose CQE version to user-space')
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The mlx5_ib driver supports the extended create_cq and create_qp user
verbs. In the current mechanism, a vendor supporting an extended uverb
should set the appropriate bit in the uverbs_ex_cmd_mask field.
Adding the actual support by setting the required bits in order to
support features like completion time-stamping and cross-channel.
Fixes: 972ecb8213 ('IB/mlx5: Add create_cq extended command')
Fixes: ddf9529be1 ('IB/core: Allow setting create flags in QP init
attribute')
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
- Remove usage of ib_query_device and instead store attributes in
ib_device struct
- Move iopoll out of block and into lib, rename to irqpoll, and use
in several places in the rdma stack as our new completion queue
polling library mechanism. Update the other block drivers that
already used iopoll to use the new mechanism too.
- Replace the per-entry GID table locks with a single GID table lock
- IPoIB multicast cleanup
- Cleanups to the IB MR facility
- Add support for 64bit extended IB counters
- Fix for netlink oops while parsing RDMA nl messages
- RoCEv2 support for the core IB code
- mlx4 RoCEv2 support
- mlx5 RoCEv2 support
- Cross Channel support for mlx5
- Timestamp support for mlx5
- Atomic support for mlx5
- Raw QP support for mlx5
- MAINTAINERS update for mlx4/mlx5
- Misc ocrdma, qib, nes, usNIC, cxgb3, cxgb4, mlx4, mlx5 updates
- Add support for remote invalidate to the iSER driver (pushed through the
RDMA tree due to dependencies, acknowledged by nab)
- Update to NFSoRDMA (pushed through the RDMA tree due to dependencies,
acknowledged by Bruce)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=5oO7
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma updates from Doug Ledford:
"Initial roundup of 4.5 merge window patches
- Remove usage of ib_query_device and instead store attributes in
ib_device struct
- Move iopoll out of block and into lib, rename to irqpoll, and use
in several places in the rdma stack as our new completion queue
polling library mechanism. Update the other block drivers that
already used iopoll to use the new mechanism too.
- Replace the per-entry GID table locks with a single GID table lock
- IPoIB multicast cleanup
- Cleanups to the IB MR facility
- Add support for 64bit extended IB counters
- Fix for netlink oops while parsing RDMA nl messages
- RoCEv2 support for the core IB code
- mlx4 RoCEv2 support
- mlx5 RoCEv2 support
- Cross Channel support for mlx5
- Timestamp support for mlx5
- Atomic support for mlx5
- Raw QP support for mlx5
- MAINTAINERS update for mlx4/mlx5
- Misc ocrdma, qib, nes, usNIC, cxgb3, cxgb4, mlx4, mlx5 updates
- Add support for remote invalidate to the iSER driver (pushed
through the RDMA tree due to dependencies, acknowledged by nab)
- Update to NFSoRDMA (pushed through the RDMA tree due to
dependencies, acknowledged by Bruce)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (169 commits)
IB/mlx5: Unify CQ create flags check
IB/mlx5: Expose Raw Packet QP to user space consumers
{IB, net}/mlx5: Move the modify QP operation table to mlx5_ib
IB/mlx5: Support setting Ethernet priority for Raw Packet QPs
IB/mlx5: Add Raw Packet QP query functionality
IB/mlx5: Add create and destroy functionality for Raw Packet QP
IB/mlx5: Refactor mlx5_ib_qp to accommodate other QP types
IB/mlx5: Allocate a Transport Domain for each ucontext
net/mlx5_core: Warn on unsupported events of QP/RQ/SQ
net/mlx5_core: Add RQ and SQ event handling
net/mlx5_core: Export transport objects
IB/mlx5: Expose CQE version to user-space
IB/mlx5: Add CQE version 1 support to user QPs and SRQs
IB/mlx5: Fix data validation in mlx5_ib_alloc_ucontext
IB/sa: Fix netlink local service GFP crash
IB/srpt: Remove redundant wc array
IB/qib: Improve ipoib UD performance
IB/mlx4: Advertise RoCE v2 support
IB/mlx4: Create and use another QP1 for RoCEv2
IB/mlx4: Enable send of RoCE QP1 packets with IP/UDP headers
...
parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).
Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The create_cq() can receive creation flags which were used
differently by two commits which added create_cq extended
command and cross-channel. The merged code caused to not
accept any flags at all.
This patch unifies the check into one function and one return
error code.
Fixes: 972ecb8213 ("IB/mlx5: Add create_cq extended command")
Fixes: 051f263098 ("IB/mlx5: Add driver cross-channel support")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Added Raw Packet QP modify functionality which will enable user
space consumers to use it.
Since Raw Packet QP is built of SQ and RQ sub-objects, therefore
Raw Packet QP state changes are implemented by changing the state
of the sub-objects.
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When modifying a QP, the desired operation was determined in
the mlx5_core using a transition table that takes the current
state, the final state, and returns the desired operation.
Since this logic will be used for Raw Packet QP, move the
operation table to the mlx5_ib.
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When the user changes the Address Vector(AV) in the modify QP, he
provides an SL. This SL should be translated to Ethernet Priority
by taking the 3 LSB bits, and modify the QP's TIS according to this
Ethernet priority.
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Since Raw Packet QP is composed of RQ and SQ, the IB QP's
state is derived from the sub-objects. Therefore we need
to query each one of the sub-objects, and decide on the
IB QP's state.
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch adds support for Raw Packet QP for the mlx5 device.
Raw Packet QP, unlike other QP types, has no matching mlx5_core_qp
object but rather it is built of RQ/SQ/TIR/TIS/TD mlx5_core object.
Since the SQ and RQ work-queue (WQ) buffers are not contiguous like
other QPs, we allocate separate buffers in the user-space and pass
the address of each one of them separately to the kernel.
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Extract specific IB QP fields to mlx5_ib_qp_trans structure.
The mlx5_core QP object resides in mlx5_ib_qp_base, which all QP types
inherit from. When we need to find mlx5_ib_qp using mlx5_core QP
(event handling and co), we use a pointer that resides in
mlx5_ib_qp_base.
In addition, we delete all redundant fields that weren't used anywhere
in the code:
-doorbell_qpn
-sq_max_wqes_per_wr
-sq_spare_wqes
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Transport Domain groups several TIS and TIR object. By grouping
these object, it defines wheather local loopback packets that
are sent from the TIS objects in the group are received by the
TIR objects in the same group.
Allocate a Transport Domain(TD) for each user context to be used
in the future by Raw Packet QP for Self-Loopback Control.
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Per user context, work with CQE version that both the user-space
and the kernel support. Report this CQE version via the response of
the alloc_ucontext command.
Signed-off-by: Haggai Abramovsky <hagaya@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Enforce working with CQE version 1 when the user supports CQE
version 1 and asked to work this way.
If the user still works with CQE version 0, then use the default
CQE version to tell the Firmware that the user still works in the
older mode.
After this patch, the kernel still reports CQE version 0.
Signed-off-by: Haggai Abramovsky <hagaya@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Based on profiling, UD performance drops in case of processes
in a single client due to excess context switches when
the progress workqueue is scheduled.
This is solved by modifying the heuristic to select the
direct progress instead of the scheduling progress via
the workqueue when UD-like situations are detected in
the heuristic.
Reviewed-by: Vinit Agnihotri <vinit.abhay.agnihotri@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Advertise RoCE v2 support in port_immutable attributes according to
the hardware's capabilities. This enables the verbs stack to use
RoCE v2 mode.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The mlx4 driver uses a special QP to implement the GSI QP. This kind
of QP allows to build the InfiniBand headers in software.
When mlx4 hardware builds the packet, it calculates the ICRC and puts
it at the end of the payload. However, this ICRC calculation depends
on the QP configuration, which is determined when the QP is modified
(roce_mode during INIT->RTR).
When receiving a packet, the ICRC verification doesn't depend on this
configuration.
Therefore, using two GSI QPs for send (one for each RoCE version) and
one GSI QP for receive are required.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
RoCEv2 packets are sent over IP/UDP protocols.
The mlx4 driver uses a type of RAW QP to send packets for QP1 and
therefore needs to build the network headers below BTH in software.
This patch adds option to build QP1 packets with IP and UDP headers if
RoCEv2 is requested.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
If the hardware supports RoCE v2, we configure the hardware UDP
port according to the RoCE v2 Annex when mlx4_ib device is added.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In order to support modify_qp for RoCE v2, we need to set
the gid_type in the QP context.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
To tell hardware about a gid with type RoCEv2, software needs a new
modifier to the SET_PORT command: MLX4_SET_PORT_ROCE_ADDR. This can
replace the old method, MLX4_SET_PORT_GID_TABLE, for RoCEv1 gids.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
IB core driver adds a property of type to struct ib_gid_attr.
The mlx4 driver should take that in consideration when modifying or
querying the hardware gid table.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Previously, IPV6_DEFAULT_HOPLIMIT was used as the hop limit value for
RoCE. Fixing that by taking ip4_dst_hoplimit and ip6_dst_hoplimit as
hop limit values.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
rdma_addr_find_dmac_by_grh resolves dmac, vlan_id and if_index and
downsteram patch will also add hop_limit as an output parameter,
thus we rename it to rdma_addr_find_l2_eth_by_grh.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Use eth_zero_addr to assign the zero address to the given address
array instead of memset when second argument is address of zero.
Signed-off-by: Lucas Tanure <tanure@linux.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Fix the following sparse warning:
drivers/infiniband/hw/mlx5/main.c:1061:29: warning: symbol 'pfn' shadows
an earlier one
drivers/infiniband/hw/mlx5/main.c:1030:21: originally declared here
Fixes: d69e3bcf79 ('IB/mlx5: Mmap the HCA's core clock register to user-space')
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In commit dbf727de74 ("IB/core: Use GID table in AH creation and dmac
resolution") we copy source mac to mlx4_ah from the attributes of
gid at ib_ah_attr.grh.sgid_index. Now we can use it.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Hop limit value wasn't copied from attributes when ah was created.
This may influence packets for unconnected services to get dropped in
routers when endpoints are not in the same subnet.
Fixes: fa417f7b52 ("IB/mlx4: Add support for IBoE")
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Maximum number of EQE capacity per CQ was mistakenly exposed
as CQE. Fix that.
Fixes: 938fe83c8d ("net/mlx5_core: New device capabilities handling")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The h/w is designed in such a way that, if you do anything IPv6
related, a valid clip entry must be there. So take clip reference
before creating IPv6 listening servers, and then if we fail to
create server, release the clip entry.
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Commit c5dfb000b9 ("iw_cxgb4: Pass qid range to user space driver")
from Dec 11, 2015, leads to the following static checker warning:
drivers/infiniband/hw/cxgb4/device.c:857 c4iw_rdev_open()
warn: variable dereferenced before check 'rdev->status_page'
Also we weren't deallocating ocqp pool in error path when failed to
allocate status page. Fixing it too.
Fixes: c5dfb000b9 ("iw_cxgb4: Pass qid range to user space driver")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
nes_reg_phys_mr() returns ERR_PTRs on error. It doesn't return NULL.
This bug has been there for a while, but we recently changed from
calling a function pointer to calling nes_reg_phys_mr() directly so now
Smatch is able to detect the bug.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The current code is problematic when the QP creation and ipoib is used to
support NFS and NFS desires to do IO for paging purposes. In that case, the
GFP_KERNEL allocation in qib_qp.c causes a deadlock in tight memory
situations.
This fix adds support to create queue pair with GFP_NOIO flag for connected
mode only to cleanly fail the create queue pair in those situations.
Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Vinit Agnihotri <vinit.abhay.agnihotri@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Recently Dough Ledford reported a deadlock happening
between ocrdma-load sequence and NetworkManager service
issuing "open" on be2net interface.
The deadlock happens when any be2net hook (e.g. open/close) is called
in parallel to insmod ocrdma.ko.
A. be2net is sending administrative open/close event to ocrdma holding
device_list_mutex. It does this from ndo_open/ndo_stop hooks of be2net.
So sequence of locks is rtnl_lock---> device_list lock
B. When new ocrdma roce device gets registered, infiniband stack now
takes rtnl_lock in ib_register_device() in GID initialization routines.
So sequence of locks in this path is device_list lock ---> rtnl_lock.
This improper locking sequence causes deadlock.
With this patch we stop using administrative open and close events
injected by be2net driver. These events were used to dispatch PORT_ACTIVE
and PORT_ERROR events to the IB-stack. This patch implements a logic
to receive async-link-events generated from CNA whenever link-state-change
is detected. Now on, these async-events will be used to dispatch
PORT_ACTIVE and PORT_ERROR events to IB-stack.
Depending on async-events from CNA removes the need to hold device-list-mutex
and thus breaks the busy-wait scenario.
Reported-by: Doug Ledford <dledford@redhat.com>
CC: Sathya Perla <sathya.perla@avagotech.com>
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com>
Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com>
Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Dispatch only port event to IB stack when port state changes.
Don't explicitly modify qps to error. Let application listen to
port events on async event queue or let QP fail with retry-exceeded
completion error.
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com>
Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
vlan-id is wrongly getting as 0 when PFC is enabled.
Set vlan-id configured by user in QP parameters.
In case vlan interface is not used, flash a warning to
user to configure vlan and assign vlan-id as 0 in qp params.
Fixes: dbf727de74 ('IB/core: Use GID table in AH creation and dmac resolution')
Cc: Matan Barak <matanb@mellanox.com>
Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
With several ConnectX-4 cards installed on a server, one may receive
irqn > 255 from the kernel API, which we mistakenly trim to 8bit.
This causes EQ creation failure with the following stack trace:
[<ffffffff812a11f4>] dump_stack+0x48/0x64
[<ffffffff810ace21>] __setup_irq+0x3a1/0x4f0
[<ffffffff810ad7e0>] request_threaded_irq+0x120/0x180
[<ffffffffa0923660>] ? mlx5_eq_int+0x450/0x450 [mlx5_core]
[<ffffffffa0922f64>] mlx5_create_map_eq+0x1e4/0x2b0 [mlx5_core]
[<ffffffffa091de01>] alloc_comp_eqs+0xb1/0x180 [mlx5_core]
[<ffffffffa091ea99>] mlx5_dev_init+0x5e9/0x6e0 [mlx5_core]
[<ffffffffa091ec29>] init_one+0x99/0x1c0 [mlx5_core]
[<ffffffff812e2afc>] local_pci_probe+0x4c/0xa0
Fixing it by changing of the irqn type from u8 to unsigned int to
support values > 255
Fixes: 61d0e73e0a ('net/mlx5_core: Use the the real irqn in eq->irqn')
Reported-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Doron Tsur <doront@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull trivial tree updates from Jiri Kosina.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
floppy: make local variable non-static
exynos: fixes an incorrect header guard
dt-bindings: fixes some incorrect header guards
cpufreq-dt: correct dead link in documentation
cpufreq: ARM big LITTLE: correct dead link in documentation
treewide: Fix typos in printk
Documentation: filesystem: Fix typo in fs/eventfd.c
fs/super.c: use && instead of & for warn_on condition
Documentation: fix sysfs-ptp
lib: scatterlist: fix Kconfig description
Adding flow steering support by creating a flow-table per
priority (if rules exist in the priority). mlx5_ib uses
autogrouping and thus only creates the required destinations.
Also includes adding of these flow steering utilities
1. Parsing verbs flow attributes hardware steering specs.
2. Check if flow is multicast - this is required in order to decide
to which flow table will we add the steering rule.
3. Set outer headers in flow match criteria to zeros.
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Recently Dough Ledford reported a deadlock happening
between ocrdma-load sequence and NetworkManager service
issuing "open" on be2net interface.
The deadlock happens when any be2net hook (e.g. open/close) is called
in parallel to insmod ocrdma.ko.
A. be2net is sending administrative open/close event to ocrdma holding
device_list_mutex. It does this from ndo_open/ndo_stop hooks of be2net.
So sequence of locks is rtnl_lock---> device_list lock
B. When new ocrdma roce device gets registered, infiniband stack now
takes rtnl_lock in ib_register_device() in GID initialization routines.
So sequence of locks in this path is device_list lock ---> rtnl_lock.
This improper locking sequence causes deadlock.
With this patch we stop using administrative open and close events
injected by be2net driver. These events were used to dispatch PORT_ACTIVE
and PORT_ERROR events to the IB-stack. This patch implements a logic
to receive async-link-events generated from CNA whenever link-state-change
is detected. Now on, these async-events will be used to dispatch
PORT_ACTIVE and PORT_ERROR events to IB-stack.
Depending on async-events from CNA removes the need to hold device-list-mutex
and thus breaks the busy-wait scenario.
Reported-by: Doug Ledford <dledford@redhat.com>
CC: Sathya Perla <sathya.perla@avagotech.com>
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com>
Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com>
Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Dispatch only port event to IB stack when port state changes.
Don't explicitly modify qps to error. Let application listen to
port events on async event queue or let QP fail with retry-exceeded
completion error.
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com>
Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
