linux-stable.git/drivers/infiniband/ulp/iser, branch v3.18.2 Linux kernel stable tree IB/mlx5, iser, isert: Add Signature API additions 2014-10-09T07:10:53+00:00 Sagi Grimberg sagig@mellanox.com 2014-08-13T16:54:35+00:00 78eda2bb6542057b214af3bc1cae09c63e65d1d1 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 <sagig@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com> 
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 <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
IB/iser: Centralize ib_sig_domain settings 2014-10-09T07:10:53+00:00 Sagi Grimberg sagig@mellanox.com 2014-08-13T16:54:33+00:00 92792c0a197db85e9d3039b59d2211ed0157e824 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 <sagig@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com> 
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 <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
IB/iser: Set IP_CSUM as default guard type 2014-10-09T07:10:53+00:00 Sagi Grimberg sagig@mellanox.com 2014-08-13T16:54:31+00:00 f043032ef1acd294e0360bec96c91b90dec7cc17 In the future this will be a per-command parameter so we can lose it, but in the mean time IP_CSUM is a lot lighter for SW layers to compute, set it as default. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com> 
In the future this will be a per-command parameter so we can lose it,
but in the mean time IP_CSUM is a lot lighter for SW layers to
compute, set it as default.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
IB/iser: Remove redundant assignment 2014-10-09T07:10:53+00:00 Sagi Grimberg sagig@mellanox.com 2014-08-13T16:54:30+00:00 6f5f8a016edf6c469d01c9bc563f6d74d12672d9 We clear the struct before - no need to do 0 assignment. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com> 
We clear the struct before - no need to do 0 assignment.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
IB/iser: Bump version, add maintainer 2014-10-09T07:06:46+00:00 Or Gerlitz ogerlitz@mellanox.com 2014-10-01T11:02:17+00:00 b261aeafe115256c9b4589dd7bd4ca877eb0fa6c Update the driver version and add Sagi Grimberg as maintainer Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com> 
Update the driver version and add Sagi Grimberg as maintainer

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
IB/iser: Fix/add kernel-doc style description in iscsi_iser.c 2014-10-09T07:06:46+00:00 Sagi Grimberg sagig@mellanox.com 2014-10-01T11:02:16+00:00 dc05ac36f729b9f53465ad6e6985129470fa7fcd This patch does not change any functionality. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com> 
This patch does not change any functionality.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
IB/iser: Add/Fix kernel doc style descriptions in iscsi_iser.h 2014-10-09T07:06:46+00:00 Sagi Grimberg sagig@mellanox.com 2014-10-01T11:02:15+00:00 cd88621a9e91ee791dee321cb81a45cb357855ee - iser_hdr - iser_data_buf - iser_mem_reg - iser_regd_buf - iser_tx_desc - iser_rx_desc - iser_device - iser_pi_context - iser_conn - ib_conn - iser_comp - iscsi_iser_task - iser_global While we're at it, change nit alignments in this file This patch does not change any functionality. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com> 
- iser_hdr
- iser_data_buf
- iser_mem_reg
- iser_regd_buf
- iser_tx_desc
- iser_rx_desc
- iser_device
- iser_pi_context
- iser_conn
- ib_conn
- iser_comp
- iscsi_iser_task
- iser_global

While we're at it, change nit alignments in this file

This patch does not change any functionality.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
IB/iser: Nit - add space after __func__ in iser logging 2014-10-09T07:06:46+00:00 Sagi Grimberg sagig@mellanox.com 2014-10-01T11:02:14+00:00 e9d49b82f1ff3f966af70d20b04bb0fae4432c24 Change logging: "iser:XXXX" to "iser: XXXX" Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com> 
Change logging: "iser:XXXX" to "iser: XXXX"

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
IB/iser: Change iscsi_conn_stop log level to info 2014-10-09T07:06:42+00:00 Ariel Nahum arieln@mellanox.com 2014-10-01T11:02:13+00:00 bba0a3c9d7bd7f49ae38e7dfd87f6ee78c91317a Match to the debug level of all functions in connect/disconnect flows. Signed-off-by: Ariel Nahum <arieln@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com> 
Match to the debug level of all functions in connect/disconnect flows.

Signed-off-by: Ariel Nahum <arieln@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
IB/iser: Suppress scsi command send completions 2014-10-09T07:06:07+00:00 Sagi Grimberg sagig@mellanox.com 2014-10-01T11:02:12+00:00 6df5a128f0fde6315a44e80b30412997147f5efd Singal completion of every 32 scsi commands and suppress all the rest. We don't do anything upon getting the completion so no need to "just consume" it. Cleanup of scsi command is done in cleanup_task callback. Still keep dataout and control send completions as we may need to cleanup there. This helps reducing the amount of interrupts/completions in the IO path. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com> 
Singal completion of every 32 scsi commands and suppress all the rest.
We don't do anything upon getting the completion so no need to "just
consume" it.  Cleanup of scsi command is done in cleanup_task callback.

Still keep dataout and control send completions as we may need to
cleanup there. This helps reducing the amount of interrupts/completions
in the IO path.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>