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  1. 08 10月, 2016 21 次提交
  3. 24 9月, 2016 1 次提交
  5. 18 8月, 2016 1 次提交
  7. 17 8月, 2016 3 次提交
    • S
      net/mlx5: Unify and improve command interface · c4f287c4
      由 Saeed Mahameed 提交于 
      Now as all commands use mlx5 ifc interface, instead of doing two calls
for executing a command we embed command status checking into
mlx5_cmd_exec to simplify the interface.

Also we do here some cleanup for redundant software structures
(inbox/outbox) and functions and improved command failure output.
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
      c4f287c4
    • S
      {net,IB}/mlx5: Modify QP commands via mlx5 ifc · 1a412fb1
      由 Saeed Mahameed 提交于 
      Prior to this patch we assumed that modify QP commands have the
same layout.

In ConnectX-4 for each QP transition there is a specific command
and their layout can vary.

e.g: 2err/2rst commands don't have QP context in their layout and before
this patch we posted the QP context in those commands.

Fortunately the FW only checks the suffix of the commands and executes
them, while ignoring all invalid data sent after the valid command
layout.

This patch removes mlx5_modify_qp_mbox_in and changes
mlx5_core_qp_modify to receive the required transition and QP context
with opt_param_mask if needed.  This way the caller is not required to
provide the command inbox layout and it will be generated automatically.

mlx5_core_qp_modify will generate the command inbox/outbox layouts
according to the requested transition and will fill the requested
parameters.
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
      1a412fb1
    • S
      {net,IB}/mlx5: QP/XRCD commands via mlx5 ifc · 09a7d9ec
      由 Saeed Mahameed 提交于 
      Remove old representation of manually created QP/XRCD commands layout
amd use mlx5_ifc canonical structures and defines.
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
      09a7d9ec
  9. 14 8月, 2016 2 次提交
  11. 03 8月, 2016 3 次提交
  13. 05 7月, 2016 1 次提交
  15. 24 6月, 2016 1 次提交
  17. 23 6月, 2016 7 次提交
    • M
      IB/mlx5: Add port protocol stats · 0ad17a8f
      由 Mark Bloch 提交于 
      Expose new counters using the get protocol stats callback.
We expose the following counters:

|------------------------------------------------------------------------|
|      Name           | IB | EN |           Description                  |
|------------------------------------------------------------------------|
|rx_write_requests    | +  | -  | Number of received WRITE requests for  |
|                     |    |    | the associated QP.                     |
|------------------------------------------------------------------------|
|rx_read_requests     | +  | -  | Number of received READ requests for   |
|                     |    |    | the associated QP.                     |
|------------------------------------------------------------------------|
|rx_atomic_requests   | +  | -  | Number of received ATOMIC requests for |
|                     |    |    | the associated QP.                     |
|------------------------------------------------------------------------|
|out_of_buffer        | +  | +  | Number of drops occurred due to lack   |
|                     |    |    | of WQE for the associated QPs/RQs.     |
|------------------------------------------------------------------------|
|out_of_sequence      | +  | -  | Number of errors in the packet         |
|                     |    |    | transport sequence number              |
|------------------------------------------------------------------------|
|duplicate_request    | +  | +  | Number of received duplicated packets. |
|                     |    |    | A request that previously executed is  |
|                     |    |    | named duplicated.                      |
|------------------------------------------------------------------------|
|rnr_nak_retry_err    | +  | +  | Number of received RNR NAC packets.    |
|                     |    |    | The QP retry limit did not exceed.     |
|------------------------------------------------------------------------|
|packet_seq_err       | +  | +  | Number of received NAK - sequence error|
|                     |    |    | packets. The QP retry limit did not    |
|                     |    |    | exceed.                                |
|------------------------------------------------------------------------|
|implied_nak_err      | +  | +  | Number of times the requester detected |
|                     |    |    | an ACK with a PSN larger than expected |
|                     |    |    | PSN for RDMA READ or ATOMIC response   |
|                     |    |    | The QP retry limit did not exceed.     |
|------------------------------------------------------------------------|
|local_ack_timeout_err| +  | -  | Number of NO ACK responses from        |
|                     |    |    | responder within timer interval.       |
|                     |    |    | The QP retry limit did not exceed.     |
|------------------------------------------------------------------------|

Counters are available if all of them are supported.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Reviewed-by: NChristoph Lameter <cl@linux.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>
      0ad17a8f
    • M
      IB/mlx5: Add per port counters · 0837e86a
      由 Mark Bloch 提交于 
      In order to support statistics for ports, we attach
each QP to a counter set which is dedicate to this port.
Signed-off-by: NMark Bloch <markb@mellanox.com>
Reviewed-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>
      0837e86a
    • A
      {net, IB}/mlx5: Refactor internal SRQ API · af1ba291
      由 Artemy Kovalyov 提交于 
      Currently, the SRQ API uses the obsolete mlx5_*_srq_mbox_{in,out}
structs which limit the ability to pass the SRQ attributes between
net and IB parts of the driver.

This patch changes the SRQ API so as to use auto-generated structs
and provides a better way to pass attributes which will be in use by
coming features.
Signed-off-by: NArtemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>
      af1ba291
    • B
      IB/mlx5: Report mlx5 TSO capabilities when querying device · 402ca536
      由 Bodong Wang 提交于 
      Enable mlx5 based hardware to report TCP segmentation offload (TSO)
capabilities from kernel to user space. A TSO enabled NIC will accept
big chunks of data with sizes greater than MTU for TCP traffic.  The TSO
engine will break the data into separate packets and will insert headers
automatically.

The capabilities are exposed to user space through query_device by uhw
directly. The following capabilities are reported:

1. The maximum payload size in bytes supported for segmentation by TSO
   engine.
2. Bitmap showing which QP types are supported by TSO operation. The bitmap
   is built by members from 'enmu ib_qp_type'. For example, similar code
   should be performed if UD QP is supported:
	supported_qpts |= 1 << IB_QPT_UD;

To make user-space library aware of whether kernel supports uhw or not, a
new flag: cmds_supp_uhw will be returned back to user-space through
alloc_ucontext.
Signed-off-by: NBodong Wang <bodong@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>
      402ca536
    • M
      IB/mlx5: Enable flow steering for IPv6 traffic · 026bae0c
      由 Maor Gottlieb 提交于 
      Enable flow steering for IPv6 traffic by using an IPv6 spec.
Signed-off-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>
      026bae0c
    • M
      IB/mlx5: Reset flow support for IB kernel ULPs · 89ea94a7
      由 Maor Gottlieb 提交于 
      The driver exposes interfaces that directly relate to HW state.
Upon fatal error, consumers of these interfaces (ULPs) that rely
on completion of all their posted work-request could hang, thereby
introducing dependencies in shutdown order. To prevent this from
happening, we manage the relevant resources (CQs, QPs) that are used
by the device. Upon a fatal error, we now generate simulated
completions for outstanding WQEs that were not completed at the
time the HW was reset.

It includes invoking the completion event handler for all involved
CQs so that the ULPs will poll those CQs. When polled we return
simulated CQEs with IB_WC_WR_FLUSH_ERR return code enabling ULPs
to clean up their  resources and not wait forever for completions
upon receiving remove_one.

The above change requires an extra check in the data path to make
sure that when device is in error state, the simulated CQEs will
be returned and no further WQEs will be posted.
Signed-off-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>
      89ea94a7
    • M
      IB/mlx5: Implements disassociate_ucontext API · 7c2344c3
      由 Maor Gottlieb 提交于 
      Implements the IB core disassociate_ucontext API.
The driver detaches the HW resources for a given user context to
prevent a dependency between application termination and device
disconnect. This is done by managing the VMAs that were mapped
to the HW bars such as doorbell and blueflame. When need to detach,
remap them to an arbitrary kernel page returned by the zap API.
Signed-off-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NLeon Romanovsky <leon@kernel.org>
Signed-off-by: NDoug Ledford <dledford@redhat.com>
      7c2344c3