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path: root/drivers/infiniband/hw/mlx4/Makefile
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2012-09-30IB/mlx4: Add iov directory in sysfs under the ib deviceJack Morgenstein1-1/+1
This directory is added only for the master -- slaves do not have it. The sysfs iov directory is used to manage and examine the port P_Key and guid paravirtualization. Under iov/ports, the administrator may examine the gid and P_Key tables as they are present in the device (and as are seen in the "network view" presented to the SM). Under the iov/<pci slot number> directories, the admin may map the index numbers in the physical tables (as under iov/ports) to the paravirtualized index numbers that guests see. For example, if the administrator, for port 1 on guest 2 maps physical pkey index 10 to virtual index 1, then that guest, whenever it uses its pkey index 1, will actually be using the real pkey index 10. Based on patch from Erez Shitrit <erezsh@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30mlx4: Add alias_guid mechanismJack Morgenstein1-1/+1
For IB ports, we paravirtualize the GUID at index 0 on slaves. The GUID at index 0 seen by a slave is the actual GUID occupying the GUID table at the slave-id index. The driver, by default, requests at startup time that subnet manager populate its entire guid table with GUIDs. These guids are then mapped (paravirtualized) to the slaves, and appear for each slave as its GUID at index 0. Until each slave has such a guid, its port status is DOWN. The guid table is cached to support special QP paravirtualization, and event propagation to slaves on guid change (we test to see if the guid really changed before propagating an event to the slave). To support this caching, add capability to __mlx4_ib_query_gid() to obtain the network view (i.e., physical view) gid at index X, not just the host (paravirtualized) view. Based on a patch from Erez Shitrit <erezsh@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30IB/mlx4: Add CM paravirtualizationAmir Vadai1-1/+1
In CM para-virtualization: 1. Incoming requests are steered to the correct vHCA according to the embedded GID. 2. Communication IDs on outgoing requests are replaced by a globally unique ID, generated by the PPF, since there is no synchronization of ID generation between guests (and so these IDs are not guaranteed to be globally unique). The guest's comm ID is stored, and is returned to the response MAD when it arrives. Signed-off-by: Amir Vadai <amirv@mellanox.co.il> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30IB/mlx4: Add multicast group (MCG) paravirtualization for SR-IOVOren Duer1-1/+1
MCG paravirtualization support includes: - Creating multicast groups by VFs, and keeping accounting of them - Leaving multicast groups by VFs - Updating SM only with real changes in the overall picture of MCGs status - Creation of MGID=0 groups (let SM choose MGID) Note that the MCG module maintains its own internal MCG object reference counts. The reason for this is that the IB core is used to track only the multicast groups joins generated by the PF it runs over. The PF IB core layer is unaware of slaves, so it cannot be used to keep track of MCG joins they generate. Signed-off-by: Oren Duer <oren@mellanox.co.il> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2007-05-08IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adaptersRoland Dreier1-0/+3
Add an InfiniBand driver for Mellanox ConnectX adapters. Because these adapters can also be used as ethernet NICs and Fibre Channel HBAs, the driver is split into two modules: mlx4_core: Handles low-level things like device initialization and processing firmware commands. Also controls resource allocation so that the InfiniBand, ethernet and FC functions can share a device without stepping on each other. mlx4_ib: Handles InfiniBand-specific things; plugs into the InfiniBand midlayer. Signed-off-by: Roland Dreier <rolandd@cisco.com>