linux.git/drivers/infiniband/ulp/iser/iser_memory.c, branch v3.19.6

IB/iser: Use correct dma direction when unmapping SGs

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

commit c6c95ef4cec680f7a10aa425a9970744b35b6489 upstream.

We always unmap SGs with the same direction instead of unmapping
with the direction the mapping was done, fix that.

Fixes: 9a8b08fad2ef ("IB/iser: Generalize iser_unmap_task_data and [...]")
Signed-off-by: Roi Dayan 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier 
Signed-off-by: Greg Kroah-Hartman

IB/iser: DIX update

2014-12-16T02:11:46+00:00

Following few recent Block integrity updates, we align the iSER data
integrity offload settings with:

- Deprecate pi_guard module param
- Expose support for DIX type 0.
- Use scsi_transfer_length for the transfer length
- Get pi_interval, ref_tag, ref_remap, bg_type and
  check_mask setting from scsi_cmnd

Signed-off-by: Sagi Grimberg 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier

IB/iser: Remove redundant is_mr indicator

2014-12-16T02:11:45+00:00

It is enough to check mem_h pointer assignment, mem_h == NULL will
indicate that buffer is not registered using mr.

Signed-off-by: Sagi Grimberg 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier

IB/iser: Centralize memory region invalidation to a function

2014-12-16T02:11:45+00:00

Eliminates code duplication.

Signed-off-by: Sagi Grimberg 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier

IB/iser: Fix sparse warnings

2014-12-16T02:11:44+00:00

Use uintptr_t to handle wr_id casting, which was found by Kbuild test
robot and smatch.  Also remove an internal definition of variable which
potentially shadows an external one (and make sparse happy).

Signed-off-by: Sagi Grimberg 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier

IB/mlx5, iser, isert: Add Signature API additions

2014-10-09T07:10:53+00:00

Expose more signature setting parameters. We modify the signature API
to allow usage of some new execution parameters relevant to data
integrity feature.

This patch modifies ib_sig_domain structure by:

- Deprecate DIF type in signature API (operation will
  be determined by the parameters alone, no DIF type awareness)
- Add APPTAG check bitmask (for input domain)
- Add REFTAG remap (increment) flag for each domain
- Add APPTAG/REFTAG escape options for each domain

The mlx5 driver is modified to follow the new parameters in HW
signature setup.

At the moment the callers (iser/isert) hard-code new parameters (by
DIF type). In the future, callers will retrieve them from the scsi
command structure.

Signed-off-by: Sagi Grimberg 
Signed-off-by: Roland Dreier

IB/iser: Centralize ib_sig_domain settings

2014-10-09T07:10:53+00:00

Later there will be more parameters to set, so we want to do it in a
centralized place.

This patch does not change any functionality.

Signed-off-by: Sagi Grimberg 
Signed-off-by: Roland Dreier

IB/iser: Remove redundant assignment

2014-10-09T07:10:53+00:00

We clear the struct before - no need to do 0 assignment.

Signed-off-by: Sagi Grimberg 
Signed-off-by: Roland Dreier

IB/iser: Re-introduce ib_conn

2014-10-09T07:06:06+00:00

Structure that describes the RDMA relates connection objects.  Static
member of iser_conn.

This patch does not change any functionality

Signed-off-by: Sagi Grimberg 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier

IB/iser: Rename ib_conn -> iser_conn

2014-10-09T07:06:06+00:00

Two reasons why we choose to do this:

1. No point today calling struct iser_conn by another name ib_conn
2. In the next patches we will restructure iser control plane representation
   - struct iser_conn: connection logical representation
   - struct ib_conn: connection RDMA layout representation

This patch does not change any functionality.

Signed-off-by: Ariel Nahum 
Signed-off-by: Sagi Grimberg 
Signed-off-by: Or Gerlitz 
Signed-off-by: Roland Dreier