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  1. Mar 09, 2018
  3. Mar 08, 2018
    • Yishai Hadas's avatar
      IB/mlx4: Move mlx4_uverbs_ex_query_device_resp to include/uapi/ · d50a8a96
      Yishai Hadas authored 
      This struct is involved in the user API for mlx4 and should not be hidden
inside a driver header file.

Fixes: 09d208b2

 ("IB/mlx4: Add report for RSS capabilities by vendor channel")
Reviewed-by: default avatarMark Bloch <markb@mellanox.com>
Signed-off-by: default avatarYishai Hadas <yishaih@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
      d50a8a96
    • Doug Ledford's avatar
      Merge tag 'mlx5-updates-2018-02-28-1' of... · 1abb791f
      Doug Ledford authored 
      Merge tag 'mlx5-updates-2018-02-28-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

 into k.o/wip/dl-for-next

mlx5-updates-2018-02-28-1 (IPSec-1)

This series consists of some fixes and refactors for the mlx5 drivers,
especially around the FPGA and flow steering. Most of them are trivial
fixes and are the foundation of allowing IPSec acceleration from user-space.

We use flow steering abstraction in order to accelerate IPSec packets.
When a user creates a steering rule, [s]he states that we'll carry an
encrypt/decrypt flow action (using a specific configuration) for every
packet which conforms to a certain match. Since currently offloading these
packets is done via FPGA, we'll add another set of flow steering ops.
These ops will execute the required FPGA commands and then call the
standard steering ops.

In order to achieve this, we need that the commands will get all the
required information. Therefore, we pass the fte object and embed the
flow_action struct inside the fte. In addition, we add the shim layer
that will later be used for alternating between the standard and the
FPGA steering commands.

Some fixes, like " net/mlx5e: Wait for FPGA command responses with a timeout"
are very relevant for user-space applications, as these applications could
be killed, but we still want to wait for the FPGA and update the kernel's
database.

Regards,
Aviad and Matan

Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      1abb791f
    • Zhu Yanjun's avatar
      IB/rxe: change the function rxe_init_device_param type · befd8d98
      Zhu Yanjun authored 
      

The function rxe_init_device_param always return 0. So the function
type is changed to void.

CC: Srinivas Eeda <srinivas.eeda@oracle.com>
CC: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: default avatarZhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      befd8d98
    • Zhu Yanjun's avatar
      IB/rxe: remove unnecessary rxe in rxe_send · 31f1bd14
      Zhu Yanjun authored 
      

In the function rxe_send, the variable rxe is not used in it.
So it should be removed.

CC: Srinivas Eeda <srinivas.eeda@oracle.com>
CC: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: default avatarZhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      31f1bd14
    • Zhu Yanjun's avatar
      IB/rxe: remove unnecessary skb_clone · 86af6176
      Zhu Yanjun authored 
      

In send_atomic_ack function, it is not necessary to make a
skb_clone. To gain better performance (high throughput and
low latency), this skb_clone is removed.

The following tests are made.

 server                       client
---------                    ---------
|1.1.1.1|<----rxe-channel--->|1.1.1.2|
---------                    ---------

On server: rping -s -a 1.1.1.1 -v -C 1000 -S 512
On client: rping -c -a 1.1.1.1 -v -C 1000 -S 512

The kernel config CONFIG_DEBUG_KMEMLEAK is enabled on both server
and client.

This test runs for several hours. There is no memory leak and the whole
system can work well.

Based on the above network, the following tests are made.

Server: ibv_rc_pingpong -d rxe0 -g 1
Client: ibv_rc_pingpong -d rxe0 -g 1 1.1.1.1

The test results on Server(10 tests are made).
Before:
Throughput is 137.07 Mbit/sec
Latency is 517.76 usec/iter

After:
Throughput is 148.85 Mbit/sec
Latency is 476.64 usec/iter

The throughput is enhanced and the latency is reduced.

CC: Srinivas Eeda <srinivas.eeda@oracle.com>
CC: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: default avatarZhu Yanjun <yanjun.zhu@oracle.com>

Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      86af6176
    • Bart Van Assche's avatar
      IB/srpt: Add RDMA/CM support · 63cf1a90
      Bart Van Assche authored 
      

Add a parameter for configuring the port on which the ib_srpt driver
listens for incoming RDMA/CM connections, namely
/sys/kernel/config/target/srpt/discovery_auth/rdma_cm_port. The default
value for this parameter is 0 which means "do not listen for incoming
RDMA/CM connections". Add RDMA/CM support to all code that handles
connection state changes. Modify srpt_init_nodeacl() such that ACLs can
be configured for IPv4 and IPv6 addresses.

Note: incoming connection requests are only accepted for ports that
have been enabled. See also the "if (!sport->enabled)" code in the
connection request handler. See also the following configfs attribute:
/sys/kernel/config/target/srpt/$port/$port/enable.

Signed-off-by: default avatarBart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
      63cf1a90
  5. Mar 07, 2018
  7. Mar 01, 2018