kernel/linux.git/include/uapi/rdma, branch v6.6.132

IB/core: Add support for XDR link speed

2025-03-07T15:45:37+00:00

[ Upstream commit 703289ce43f740b0096724300107df82d008552f ] Add new IBTA speed XDR, the new rate that was added to Infiniband spec as part of XDR and supporting signaling rate of 200Gb. In order to report that value to rdma-core, add new u32 field to query_port response. Signed-off-by: Or Har-Toov Reviewed-by: Mark Zhang Link: https://lore.kernel.org/r/9d235fc600a999e8274010f0e18b40fa60540e6c.1695204156.git.leon@kernel.org Reviewed-by: Jacob Keller Signed-off-by: Leon Romanovsky Stable-dep-of: c534ffda781f ("RDMA/mlx5: Fix AH static rate parsing") Signed-off-by: Sasha Levin

RDMA/bnxt_re: Adds MSN table capability for Gen P7 adapters

2024-06-12T09:12:10+00:00

[ Upstream commit 07f830ae4913d0b986c8c0ff88a7d597948b9bd8 ] GenP7 HW expects an MSN table instead of PSN table. Check for the HW retransmission capability and populate the MSN table if HW retansmission is supported. Signed-off-by: Damodharam Ammepalli Signed-off-by: Selvin Xavier Link: https://lore.kernel.org/r/1701946060-13931-7-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Leon Romanovsky Stable-dep-of: 78cfd17142ef ("bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq") Signed-off-by: Sasha Levin

RDMA/bnxt_re: Remove roundup_pow_of_two depth for all hardware queue resources

2024-06-12T09:12:10+00:00

[ Upstream commit 48f996d4adf15a0a0af8b8184d3ec6042a684ea4 ] Rounding up the queue depth to power of two is not a hardware requirement. In order to optimize the per connection memory usage, removing drivers implementation which round up to the queue depths to the power of 2. Implements a mask to maintain backward compatibility with older library. Signed-off-by: Chandramohan Akula Signed-off-by: Selvin Xavier Link: https://lore.kernel.org/r/1698069803-1787-3-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Leon Romanovsky Stable-dep-of: 78cfd17142ef ("bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq") Signed-off-by: Sasha Levin

RDMA/irdma: Use HW specific minimum WQ size

2023-07-30T12:43:00+00:00

HW GEN1 and GEN2 have different min WQ sizes but they are currently set to the same value. Use a gen specific attribute min_hw_wq_size and extend ABI to pass it to user-space. Signed-off-by: Sindhu Devale Signed-off-by: Shiraz Saleem Link: https://lore.kernel.org/r/20230725155525.1081-3-shiraz.saleem@intel.com Signed-off-by: Leon Romanovsky

RDMA/irdma: Allow accurate reporting on QP max send/recv WR

2023-07-30T12:43:00+00:00

Currently the attribute cap.max_send_wr and cap.max_recv_wr sent from user-space during create QP are the provider computed SQ/RQ depth as opposed to raw values passed from application. This inhibits computation of an accurate value for max_send_wr and max_recv_wr for this QP in the kernel which matches the value returned in user create QP. Also these capabilities needs to be reported from the driver in query QP. Add support by extending the ABI to allow the raw cap.max_send_wr and cap.max_recv_wr to be passed from user-space, while keeping compatibility for the older scheme. The internal HW depth and shift needed for the WQs needs to be computed now for both kernel and user-mode QPs. Add new helpers to assist with this: irdma_uk_calc_depth_shift_sq, irdma_uk_calc_depth_shift_rq and irdma_uk_calc_depth_shift_wq. Consolidate all the user mode QP setup into a new function irdma_setup_umode_qp which keeps it with its counterpart irdma_setup_kmode_qp. Signed-off-by: Youvaraj Sagar Signed-off-by: Sindhu Devale Signed-off-by: Shiraz Saleem Link: https://lore.kernel.org/r/20230725155525.1081-2-shiraz.saleem@intel.com Signed-off-by: Leon Romanovsky

RDMA/bnxt_re: Add a new uapi for driver notification

2023-07-21T19:15:33+00:00

Add driver notify uapi for application notifying the driver about the doorbell FIFO congestion. Link: https://lore.kernel.org/r/1689742977-9128-8-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Chandramohan Akula Signed-off-by: Selvin Xavier Signed-off-by: Jason Gunthorpe

RDMA/bnxt_re: Update alloc_page uapi for pacing

2023-07-21T19:15:32+00:00

Update the alloc_page uapi functionality for handling the mapping of doorbell pacing shared page and bar address. Link: https://lore.kernel.org/r/1689742977-9128-6-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Chandramohan Akula Signed-off-by: Selvin Xavier Signed-off-by: Jason Gunthorpe

RDMA/bnxt_re: Enable pacing support for the user apps

2023-07-21T19:15:32+00:00

Report the pacing capability to the user applications. Link: https://lore.kernel.org/r/1689742977-9128-5-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Chandramohan Akula Signed-off-by: Selvin Xavier Signed-off-by: Jason Gunthorpe

RDMA/bnxt_re: Enable low latency push

2023-06-21T17:13:17+00:00

Introduce driver specific uapi functionalites. Added a alloc_page functionality for user library to allocate specific pages. Currently added support for allocating write combine pages for push functinality. This interface shall be extended for other page allocations. Allocate a WC page using the uapi hook for enabling the low latency push in Gen P5 adapters for small packets. This is supported only for the user space QPs. Link: https://lore.kernel.org/r/1686679943-17117-8-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Selvin Xavier Signed-off-by: Jason Gunthorpe

RDMA/efa: Add rdma write capability to device caps

2023-04-21T22:18:58+00:00

Add rdma write capability that is propagated from the device to rdma-core. Enable MR creation with remote write permissions according to this device capability. Link: https://lore.kernel.org/r/20230404154313.35194-1-ynachum@amazon.com Reviewed-by: Firas Jahjah Reviewed-by: Michael Margolin Signed-off-by: Yonatan Nachum Signed-off-by: Jason Gunthorpe