linux-stable.git/drivers/infiniband/ulp/iser, branch v4.10.2

IB/iser: remove unused variable from iser_conn struct

2017-01-24T16:37:45+00:00

max_sectors calculation was fixed in commit:
9c674815d346 ("IB/iser: Fix max_sectors calculation").
Thus, iser_conn variable scsi_max_sectors is not needed anymore.

Signed-off-by: Max Gurtovoy 
Reviewed-by: Sagi Grimberg 
Tested-by: Raju Rangoju 
Signed-off-by: Doug Ledford

IB/iser: Fix sg_tablesize calculation

2017-01-24T16:37:45+00:00

For devices that can register page list that is bigger than
USHRT_MAX, we actually take the wrong value for sg_tablesize.
E.g: for CX4 max_fast_reg_page_list_len is 65536 (bigger than USHRT_MAX)
so we set sg_tablesize to 0 by mistake. Therefore, each IO that is
bigger than 4k splitted to "< 4k" chunks that cause performance degredation.
Remove wrong sg_tablesize assignment, and use the value that was set during
address resolution handler with the needed casting.

Cc:  # v4.5+
Signed-off-by: Max Gurtovoy 
Reviewed-by: Sagi Grimberg 
Signed-off-by: Doug Ledford

Replace with globally

2016-12-24T19:46:01+00:00

This was entirely automated, using the script by Al:

  PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*'
  sed -i -e "s!$PATT!#include !" \
        $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)

to do the replacement at the end of the merge window.

Requested-by: Al Viro 
Signed-off-by: Linus Torvalds

ib_iser: log the connection reject message

2016-12-14T16:38:28+00:00

Acked-by: Sagi Grimberg 
Signed-off-by: Steve Wise 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Doug Ledford

IB/iser: use IB_PD_UNSAFE_GLOBAL_RKEY

2016-09-23T17:47:44+00:00

Signed-off-by: Christoph Hellwig 
Reviewed-by: Sagi Grimberg 
Reviewed-by: Jason Gunthorpe 
Reviewed-by: Steve Wise 
Signed-off-by: Doug Ledford

IB/core: add support to create a unsafe global rkey to ib_create_pd

2016-09-23T17:47:44+00:00

Instead of exposing ib_get_dma_mr to ULPs and letting them use it more or
less unchecked, this moves the capability of creating a global rkey into
the RDMA core, where it can be easily audited.  It also prints a warning
everytime this feature is used as well.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Sagi Grimberg 
Reviewed-by: Jason Gunthorpe 
Reviewed-by: Steve Wise 
Signed-off-by: Doug Ledford

IB/core: Enhance ib_map_mr_sg()

2016-05-13T17:37:57+00:00

The SRP initiator allows to set max_sectors to a value that exceeds
the largest amount of data that can be mapped at once with an mlx4
HCA using fast registration and a page size of 4 KB. Hence modify
ib_map_mr_sg() such that it can map partial sg-elements. If an
sg-element has been mapped partially, let the caller know
which fraction has been mapped by adjusting *sg_offset.

Signed-off-by: Bart Van Assche 
Tested-by: Laurence Oberman 
Cc: Christoph Hellwig 
Cc: Sagi Grimberg 
Signed-off-by: Doug Ledford

IB/core: Add passing an offset into the SG to ib_map_mr_sg

2016-05-13T17:37:11+00:00

Signed-off-by: Christoph Hellwig 
Tested-by: Steve Wise 
Reviewed-by: Bart Van Assche 
Reviewed-by: Sagi Grimberg 
Reviewed-by: Steve Wise 
Signed-off-by: Doug Ledford

IB/iser: Fix max_sectors calculation

2016-05-05T16:41:24+00:00

iSER currently has a couple places that set max_sectors in either the host
template or SCSI host, and all of them get it wrong.

This patch instead uses a single assignment that (hopefully) gets it right:
the max_sectors value must be derived from the number of segments in the
FR or FMR structure, but actually be one lower than the page size multiplied
by the number of sectors, as it has to handle the case of non-aligned I/O.

Without this I get trivial to reproduce hangs when running xfstests
(on XFS) over iSER to Linux targets.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Max Gurtovoy 
Acked-by: Sagi Grimberg 
Signed-off-by: Doug Ledford

Merge branches 'mlx4', 'mlx5' and 'ocrdma' into k.o/for-4.6

2016-03-16T17:38:28+00:00