linux.git/drivers/infiniband/hw, branch v3.19.6

IB/mlx4: Saturate RoCE port PMA counters in case of overflow

2015-04-19T08:10:27+00:00

commit 61a3855bb726cbb062ef02a31a832dea455456e0 upstream.

For RoCE ports, we set the u32 PMA values based on u64 HCA counters. In case of
overflow, according to the IB spec, we have to saturate a counter to its
max value, do that.

Fixes: c37791349cc7 ('IB/mlx4: Support PMA counters for IBoE')
Signed-off-by: Majd Dibbiny 
Signed-off-by: Eran Ben Elisha 
Signed-off-by: Hadar Hen Zion 
Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

IB/mlx4: Fix wrong usage of IPv4 protocol for multicast attach/detach

2015-03-18T13:11:06+00:00

commit e9a7faf11af94957e5107b40af46c2e329541510 upstream.

The MLX4_PROT_IB_IPV4 protocol should only be used with RoCEv2 and such.
Removing this wrong usage allows to run multicast applications over RoCE.

Fixes: d487ee77740c ("IB/mlx4: Use IBoE (RoCE) IP based GIDs in the port GID table")
Reported-by: Carol Soto 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier 
Signed-off-by: Greg Kroah-Hartman

IB/mlx4: Fix memory leak in __mlx4_ib_modify_qp

2015-03-18T13:11:06+00:00

commit bede98e781747623ae170667694a71ef19c6ba7f upstream.

In case handle_eth_ud_smac_index fails, we need to free the allocated resources.

Fixes: 2f5bb473681b ("mlx4: Add ref counting to port MAC table for RoCE")
Signed-off-by: Majd Dibbiny 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier 
Signed-off-by: Greg Kroah-Hartman

IB/mlx5: Fix error code in get_port_caps()

2015-03-18T13:11:06+00:00

commit f614fc15ae39ceb531586e3969f2b99fd23182a0 upstream.

The current code returns success when kmalloc() fails.  It should
return an error code, -ENOMEM.

Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Dan Carpenter 
Signed-off-by: Roland Dreier 
Signed-off-by: Greg Kroah-Hartman

IB/qib: Do not write EEPROM

2015-03-18T13:11:06+00:00

commit 18c0b82a3e4501511b08d0e8676fb08ac08734a3 upstream.

This changeset removes all the code that allows the driver to write to
the EEPROM and update the recorded error counters and power on hours.

These two stats are unused and writing them exposes a timing risk
which could leave the EEPROM in a bad state preventing further normal
operation of the HCA.

Reviewed-by: Mike Marciniszyn 
Signed-off-by: Mitko Haralanov 
Signed-off-by: Mike Marciniszyn 
Signed-off-by: Roland Dreier 
Signed-off-by: Greg Kroah-Hartman

Revert "IB/core: Add support for extended query device caps"

2015-02-06T08:54:33+00:00

While commit 7e36ef8205ff ("IB/core: Temporarily disable
ex_query_device uverb") is correct as it makes the extended
QUERY_DEVICE uverb (which came as part of commit 5a77abf9a97a
("IB/core: Add support for extended query device caps") and commit
860f10a799c8 ("IB/core: Add flags for on demand paging support")) not
available to userspace, it doesn't address the initial issue regarding
ib_copy_to_udata() [1][2].

Additionally, further discussions around this new uverb seems to
conclude it would require a different data structure than the one
currently described in  [3].

Both of these issues require a revert of the changes, so this patch
partially reverts commit 8cdd312cfed7 ("IB/mlx5: Implement the ODP
capability query verb") and commit 860f10a799c8 ("IB/core: Add flags
for on demand paging support") and fully reverts commit 5a77abf9a97a
("IB/core: Add support for extended query device caps").

[1] "Re: [PATCH v3 06/17] IB/core: Add support for extended query device caps"
    http://mid.gmane.org/1418733236.2779.26.camel@opteya.com

[2] "Re: [PATCH] IB/core: Temporarily disable ex_query_device uverb"
    http://mid.gmane.org/1423067503.3030.83.camel@opteya.com

[3] "RE: [PATCH v1 1/5] IB/uverbs: ex_query_device: answer must not depend on request's comp_mask"
    http://mid.gmane.org/2807E5FD2F6FDA4886F6618EAC48510E0CC12C30@CRSMSX101.amr.corp.intel.com

Cc: Eli Cohen 
Cc: Haggai Eran 
Cc: Ira Weiny 
Cc: Jason Gunthorpe 
Cc: Sagi Grimberg 
Cc: Shachar Raindel 
Signed-off-by: Yann Droneaud 
Signed-off-by: Roland Dreier

net/mlx4: Don't disable vxlan offloads under DMFS-A0 optimized steering

2015-01-16T00:35:30+00:00

Except for VXLAN steering rules, all offloads should work as they were
under plain DMFS mode. Fix that by enabling all the offloads under
DMFS-A0 mode, except for VXLAN steering rules.

Fixes: d57febe1a478 "net/mlx4: Add A0 hybrid steering"
Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller

Merge branches 'core', 'cxgb4', 'ipoib', 'iser', 'mlx4', 'ocrdma', 'odp' and 'srp' into for-next

2014-12-16T02:19:20+00:00

IB/mlx5: Implement on demand paging by adding support for MMU notifiers

2014-12-16T02:19:04+00:00

* Implement the relevant invalidation functions (zap MTTs as needed)
* Implement interlocking (and rollback in the page fault handlers) for
  cases of a racing notifier and fault.
* With this patch we can now enable the capability bits for supporting RC
  send/receive/RDMA read/RDMA write, and UD send.

Signed-off-by: Sagi Grimberg 
Signed-off-by: Shachar Raindel 
Signed-off-by: Haggai Eran 
Signed-off-by: Roland Dreier

IB/mlx5: Add support for RDMA read/write responder page faults

2014-12-16T02:19:03+00:00

Signed-off-by: Shachar Raindel 
Signed-off-by: Haggai Eran 
Signed-off-by: Roland Dreier