linux.git/include/linux/mlx4, branch v3.15

net/mlx4_core: Add UPDATE_QP SRIOV wrapper support

2014-05-16T19:12:45+00:00

This patch adds UPDATE_QP SRIOV wrapper support.

The mechanism is a general one, but currently only source MAC
index changes are allowed for VFs.

Signed-off-by: Matan Barak 
Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller

net/mlx4: Implement vxlan ndo calls

2014-03-28T20:29:35+00:00

Add implementation for the add/del vxlan port ndo calls, using the
CONFIG_DEV firmware command.

Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller

mlx4: Add support for CONFIG_DEV command

2014-03-28T20:29:35+00:00

Introduce the CONFIG_DEV firmware command which we will use to
configure the UDP port assumed by the firmware for the VXLAN offloads.

Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller

net/mlx4: Adapt code for N-Port VF

2014-03-20T20:18:30+00:00

Adds support for N-Port VFs, this includes:
1. Adding support in the wrapped FW command
	In wrapped commands, we need to verify and convert
	the slave's port into the real physical port.
	Furthermore, when sending the response back to the slave,
	a reverse conversion should be made.
2. Adjusting sqpn for QP1 para-virtualization
	The slave assumes that sqpn is used for QP1 communication.
	If the slave is assigned to a port != (first port), we need
	to adjust the sqpn that will direct its QP1 packets into the
	correct endpoint.
3. Adjusting gid[5] to modify the port for raw ethernet
	In B0 steering, gid[5] contains the port. It needs
	to be adjusted into the physical port.
4. Adjusting number of ports in the query / ports caps in the FW commands
	When a slave queries the hardware, it needs to view only
	the physical ports it's assigned to.
5. Adjusting the sched_qp according to the port number
	The QP port is encoded in the sched_qp, thus in modify_qp we need
	to encode the correct port in sched_qp.

Signed-off-by: Matan Barak 
Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller

net/mlx4: Add utils for N-Port VFs

2014-03-20T20:18:29+00:00

This patch adds the following utils:
1. Convert slave_id -> VF
2. Get the active ports by slave_id
3. Convert slave's port to real port
4. Get the slave's port from real port
5. Get all slaves that uses the i'th real port
6. Get all slaves that uses the i'th real port exclusively

Signed-off-by: Matan Barak 
Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller

net/mlx4: Add data structures to support N-Ports per VF

2014-03-20T20:18:29+00:00

Adds the required data structures to support VFs with N (1 or 2)
ports instead of always using the number of physical ports.

Signed-off-by: Matan Barak 
Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller

mlx4: Implement IP based gids support for RoCE/SRIOV

2014-03-12T19:57:16+00:00

Since there is no connection between the MAC/VLAN and the GID
when using IP-based addressing, the proxy QP1 (running on the
slave) must pass the source-mac, destination-mac, and vlan_id
information separately from the GID. Additionally, the Host
must pass the remote source-mac and vlan_id back to the slave,

This is achieved as follows:
Outgoing MADs:
    1. Source MAC: obtained from the CQ completion structure
       (struct ib_wc, smac field).
    2. Destination MAC: obtained from the tunnel header
    3. vlan_id: obtained from the tunnel header.
Incoming MADs
    1. The source (i.e., remote) MAC and vlan_id are passed in
       the tunnel header to the proxy QP1.

VST mode support:
     For outgoing MADs,  the vlan_id obtained from the header is
        discarded, and the vlan_id specified by the Hypervisor is used
        instead.
     For incoming MADs, the incoming vlan_id (in the wc) is discarded, and the
        "invalid" vlan (0xffff)  is substituted when forwarding to the slave.

Signed-off-by: Moni Shoua 
Signed-off-by: Jack Morgenstein 
Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller

mlx4: In RoCE allow guests to have multiple GIDS

2014-03-12T19:57:14+00:00

The GIDs are statically distributed, as follows:
PF: gets 16 GIDs
VFs:  Remaining GIDS are divided evenly between VFs activated by the driver.
      If the division is not even, lower-numbered VFs get an extra GID.

For an IB interface, the number of gids per guest remains as before: one gid per guest.

Signed-off-by: Jack Morgenstein 
Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller

mlx4_core: For RoCE, allow slaves to set the GID entry at that slave's index

2014-03-12T19:57:13+00:00

For IB transport, the host determines the slave GIDs. For ETH (RoCE),
however, the slave's GID is determined by the IP address that the slave
itself assigns to the ETH device used by RoCE.

In this case, the slave must be able to write its GIDs to the HCA gid table
(at the GID indices that slave "owns").

This commit adds processing for the SET_PORT_GID_TABLE opcode modifier
for the SET_PORT command wrapper (so that slaves may modify their GIDS
for RoCE).

Signed-off-by: Jack Morgenstein 
Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller

mlx4: Adjust QP1 multiplexing for RoCE/SRIOV

2014-03-12T19:57:12+00:00

This requires the following modifications:
1. Fix build_mlx4_header to properly fill in the ETH fields
2. Adjust mux and demux QP1 flow to support RoCE.

This commit still assumes only one GID per slave for RoCE.
The commit enabling multiple GIDs is a subsequent commit, and
is done separately because of its complexity.

Signed-off-by: Jack Morgenstein 
Signed-off-by: Or Gerlitz 
Signed-off-by: David S. Miller