linux/include/rdma, branch v2.6.20-rc4

IB: Fix ib_dma_alloc_coherent() wrapper

2006-12-15T21:57:26Z

The ib_dma_alloc_coherent() wrapper uses a u64* for the dma_handle parameter, unlike dma_alloc_coherent, which uses dma_addr_t*. This means that we need a temporary variable to handle the case when ib_dma_alloc_coherent() just falls through directly to dma_alloc_coherent() on architectures where sizeof u64 != sizeof dma_addr_t. Signed-off-by: Roland Dreier

[PATCH] ib_verbs: Use explicit if-else statements to avoid errors with do-while macros

2006-12-14T03:47:13Z

At least on PPC, the "op ? op : dma" construct causes a compile failure because the dma_* is a do{}while(0) macro. This turns all of them into proper if/else to avoid this problem. Signed-off-by: Ben Collins Signed-off-by: Linus Torvalds

IB: Add DMA mapping functions to allow device drivers to interpose

2006-12-12T22:27:41Z

The QLogic InfiniPath HCAs use programmed I/O instead of HW DMA. This patch allows a verbs device driver to interpose on DMA mapping function calls in order to avoid relying on bus_to_virt() and phys_to_virt() to undo the mappings created by dma_map_single(), dma_map_sg(), etc. Signed-off-by: Ralph Campbell Signed-off-by: Roland Dreier

RDMA/cma: Export rdma cm interface to userspace

2006-12-12T19:50:22Z

Export the rdma cm interfaces to userspace via a misc device. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier

RDMA/cma: Add support for RDMA_PS_UDP

2006-12-12T19:50:21Z

Allow the use of UD QPs through the rdma_cm, in order to provide address translation services for resolving IB addresses for datagram messages using SIDR. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier

RDMA/cma: Allow early transition to RTS to handle lost CM messages

2006-12-12T19:50:21Z

During connection establishment, the passive side of a connection can receive messages from the active side before the connection event has been delivered to the user. Allow the passive side to send messages in response to received data before the event is delivered. To handle the case where the connection messages are lost, a new rdma_notify() function is added that users may invoke to force a connection into the established state. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier

RDMA/cma: Report connect info with connect events

2006-12-12T19:50:21Z

Connection information was never given to the recipient of a connection request or reply message. Only the event was delivered. Report the connection data with the event to allows user to reject the connection based on the requested parameters, or adjust their resources to match the request. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier

RDMA/cma: Remove unneeded qp_type parameter from rdma_cm

2006-12-12T19:50:21Z

The qp_type parameter into the rdma_cm is unneeded, and can be misleading. The QP type should be determined from the port space. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier

IB/cm: Fix automatic path migration support

2006-11-29T23:33:10Z

The ib_cm_establish() function is replaced with a more generic ib_cm_notify(). This routine is used to notify the CM that failover has occurred, so that future CM messages (LAP, DREQ) reach the remote CM. (Currently, we continue to use the original path) This bumps the userspace CM ABI. New alternate path information is captured when a LAP message is sent or received. This allows QP attributes to be initialized for the user when a new path is loaded after failover occurs. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier

RDMA/addr: Use client registration to fix module unload race

2006-11-02T22:26:04Z

Require registration with ib_addr module to prevent caller from unloading while a callback is in progress. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier