linux/include/rdma, branch v6.14

RDMA/core: Support link status events dispatching

2024-12-24T10:22:18Z

Currently the dispatching of link status events is implemented by each RDMA driver independently, and most of them have very similar patterns. Add support for this in ib_core so that we can get rid of duplicate codes in each driver. A new last_port_state is added in ib_port_cache to cache the port state of the last link status events dispatching. The original port_state in ib_port_cache is not used here because it will be updated when ib_dispatch_event() is called, which means it may be changed between two link status events, and may lead to a loss of event dispatching. Some drivers currently have some private stuff in their link status events handler in addition to event dispatching, and cannot be perfectly integrated into the ib_core handling process. For these drivers, add a new ops report_port_event() so that they can keep their current processing. Finally, events of LAG devices are not supported yet in this patch as currently there is no way to obtain ibdev from upper netdev in ib_core. This can be a TODO work after the core have more support for LAG. Signed-off-by: Yuyu Li Signed-off-by: Junxian Huang Signed-off-by: Leon Romanovsky

RDMA/core: Add ib_query_netdev_port() to query netdev port by IB device.

2024-12-24T10:21:45Z

Query the port number of a netdev associated with an ibdev. Signed-off-by: Yuyu Li Signed-off-by: Junxian Huang Signed-off-by: Leon Romanovsky

RDMA/core: Remove unused ib_copy_path_rec_from_user

2024-12-24T10:00:42Z

ib_copy_path_rec_from_user() has been unused since 2019's commit a1a8e4a85cf7 ("rdma: Delete the ib_ucm module") Remove it. Signed-off-by: Dr. David Alan Gilbert Link: https://patch.msgid.link/20241221014021.343979-5-linux@treblig.org Reviewed-by: Kalesh AP Signed-off-by: Leon Romanovsky

RDMA/core: Remove unused ibdev_printk

2024-12-24T10:00:42Z

The last use of ibdev_printk() was removed in 2019 by commit b2299e83815c ("RDMA: Delete DEBUG code") Remove it. Note: The __ibdev_printk() is still used in the idev_err etc functions so leave that. Signed-off-by: Dr. David Alan Gilbert Link: https://patch.msgid.link/20241221014021.343979-4-linux@treblig.org Signed-off-by: Leon Romanovsky

RDMA/core: Remove unused ib_find_exact_cached_pkey

2024-12-24T10:00:42Z

The last use of ib_find_exact_cached_pkey() was removed in 2012 by commit 2c75d2ccb6e5 ("IB/mlx4: Fix QP1 P_Key processing in the Primary Physical Function (PPF)") Remove it. Signed-off-by: Dr. David Alan Gilbert Link: https://patch.msgid.link/20241221014021.343979-3-linux@treblig.org Reviewed-by: Kalesh AP Signed-off-by: Leon Romanovsky

RDMA/core: Remove unused ib_ud_header_unpack

2024-12-24T10:00:42Z

ib_ud_header_unpack() is unused, and I can't see any sign of it ever having been used in git. The only reference I can find is from December 2004 BKrev: 41d30034XNbBUl0XnyC6ig9V61Nf-A when it looks like it was added. Remove it. Signed-off-by: Dr. David Alan Gilbert Link: https://patch.msgid.link/20241221014021.343979-2-linux@treblig.org Reviewed-by: Kalesh AP Signed-off-by: Leon Romanovsky

RDMA/mlx5: Extend ODP statistics with operation count

2024-12-10T09:09:09Z

The current ODP counters represent the total number of pages handled, but it is not enough to understand the effectiveness of these operations. Extend the ODP counters to include the number of times page fault and invalidation events were handled. Example for a single page fault handling 512 pages: - page_fault: incremented by 512 (total pages) - page_fault_handled: incremented by 1 (operation count) The same example is applicable for page invalidation too. Previous output: $ rdma stat mr dev rocep8s0f0 mrn 8 page_faults 27 page_invalidations 0 page_prefetch 29 New output: $ rdma stat mr dev rocep8s0f0 mrn 21 page_faults 512 page_faults_handled 1 page_invalidations 0 page_invalidations_handled 0 page_prefetch 51200 Signed-off-by: Chiara Meiohas Reviewed-by: Michael Guralnik Link: https://patch.msgid.link/b18f29ed1392996ade66e9e6c45f018925253f6a.1733234165.git.leonro@nvidia.com Signed-off-by: Leon Romanovsky

RDMA/core: Move ib_uverbs_file struct to uverbs_types.h

2024-11-04T11:57:21Z

In light of the previous commit, make the ib_uverbs_file accessible to drivers by moving its definition to uverbs_types.h, to allow drivers to freely access the struct argument and create a personalized cleanup flow. For the same reason expose uverbs_try_lock_object function to allow driver to safely access the uverbs objects. Signed-off-by: Patrisious Haddad Link: https://patch.msgid.link/29b718e0dca35daa5f496320a39284fc1f5a1722.1730373303.git.leon@kernel.org Signed-off-by: Leon Romanovsky

RDMA/core: Add device ufile cleanup operation

2024-11-04T11:57:21Z

Add a driver operation to allow preemptive cleanup of ufile HW resources before the standard ufile cleanup flow begins. Thus, expediting the final cleanup phase which leads to fast teardown overall. This allows the use of driver specific clean up procedures to make the cleanup process more efficient. Signed-off-by: Patrisious Haddad Link: https://patch.msgid.link/cabe00d75132b5732cb515944e3c500a01fb0b4a.1730373303.git.leon@kernel.org Signed-off-by: Leon Romanovsky

RDMA/core: Implement RoCE GID port rescan and export delete function

2024-11-04T11:57:21Z

rdma_roce_rescan_port() scans all network devices in the system and adds the gids if relevant to the RoCE device port. When not in bonding mode it adds the GIDs of the netdevice in this port. When in bonding mode it adds the GIDs of both the port's netdevice and the bond master netdevice. Export roce_del_all_netdev_gids(), which removes all GIDs associated with a specific netdevice for a given port. Signed-off-by: Chiara Meiohas Link: https://patch.msgid.link/674d498da4637a1503ff1367e28bd09ff942fd5e.1730381292.git.leon@kernel.org Signed-off-by: Leon Romanovsky