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Shani Michaeli 7083e42ee2 IB/core: Add "type 2" memory windows support ... This patch enhances the IB core support for Memory Windows (MWs). MWs allow an application to have better/flexible control over remote access to memory. Two types of MWs are supported, with the second type having two flavors: Type 1 - associated with PD only Type 2A - associated with QPN only Type 2B - associated with PD and QPN Applications can allocate a MW once, and then repeatedly bind the MW to different ranges in MRs that are associated to the same PD. Type 1 windows are bound through a verb, while type 2 windows are bound by posting a work request. The 32-bit memory key is composed of a 24-bit index and an 8-bit key. The key is changed with each bind, thus allowing more control over the peer's use of the memory key. The changes introduced are the following: * add memory window type enum and a corresponding parameter to ib_alloc_mw. * type 2 memory window bind work request support. * create a struct that contains the common part of the bind verb struct ibv_mw_bind and the bind work request into a single struct. * add the ib_inc_rkey helper function to advance the tag part of an rkey. Consumer interface details: * new device capability flags IB_DEVICE_MEM_WINDOW_TYPE_2A and IB_DEVICE_MEM_WINDOW_TYPE_2B are added to indicate device support for these features. Devices can set either IB_DEVICE_MEM_WINDOW_TYPE_2A or IB_DEVICE_MEM_WINDOW_TYPE_2B if it supports type 2A or type 2B memory windows. It can set neither to indicate it doesn't support type 2 windows at all. * modify existing provides and consumers code to the new param of ib_alloc_mw and the ib_mw_bind_info structure Signed-off-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Shani Michaeli <shanim@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>		12 years ago
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ib_addr.h	rdma/core: Fix sparse warnings	13 years ago
ib_cache.h	IB/core: Add ib_find_exact_cached_pkey()	13 years ago
ib_cm.h	IB/core: Move CM_xxx_ATTR_ID macros from cm_msgs.h to ib_cm.h	13 years ago
ib_fmr_pool.h	…
ib_mad.h	IB/core: Fix IB_SA_COMP_MASK macro	13 years ago
ib_marshall.h	…
ib_pack.h	IB/core: Add VLAN support for IBoE	15 years ago
ib_pma.h	IB/pma: Add include file for IBA performance counters definitions	14 years ago
ib_sa.h	IB/sa: Add GuidInfoRecord query support	13 years ago
ib_smi.h	…
ib_umem.h	…
ib_verbs.h	IB/core: Add "type 2" memory windows support	12 years ago
iw_cm.h	RDMA/iwcm: Propagate ird/ord values upwards	14 years ago
rdma_cm.h	RDMA/cma: Allow user to restrict listens to bound address family	13 years ago
rdma_cm_ib.h	…
rdma_netlink.h	UAPI: (Scripted) Disintegrate include/rdma	12 years ago