user/sven/linux.git/include/uapi/rdma, branch v6.6.5

RDMA/irdma: Use HW specific minimum WQ size

2023-07-30T12:43:00Z

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

2023-07-30T12:43:00Z

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

2023-07-21T19:15:33Z

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

2023-07-21T19:15:32Z

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

2023-07-21T19:15:32Z

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

2023-06-21T17:13:17Z

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

2023-04-21T22:18:58Z

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

RDMA/bnxt_re: Add resize_cq support

2023-03-29T07:03:43Z

Add resize_cq verb support for user space CQs. Resize operation for kernel CQs are not supported now. Driver should free the current CQ only after user library polls for all the completions and switch to new CQ. So after the resize_cq is returned from the driver, user library polls for existing completions and store it as temporary data. Once library reaps all completions in the current CQ, it invokes the ibv_cmd_poll_cq to inform the driver about the resize_cq completion. Adding a check for user CQs in driver's poll_cq and complete the resize operation for user CQs. Updating uverbs_cmd_mask with poll_cq to support this. Signed-off-by: Selvin Xavier Link: https://lore.kernel.org/r/1678868215-23626-1-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Leon Romanovsky

RDMA/efa: Add data polling capability feature bit

2023-03-22T17:41:58Z

Add feature bit to existing device caps field. EFA supports data polling of 128 bytes blocks. The flag indicates that the NIC guarentees that a 128 byte aligned block is written in order, ie that observing the last 8 bits of the block mean the prior 127 bytes are also written. It is useful for "last data polling" acceleration techniques. Link: https://lore.kernel.org/r/20230219081328.10419-1-mrgolin@amazon.com Reviewed-by: Yehuda Yitschak Reviewed-by: Yossi Leybovich Signed-off-by: Yonatan Nachum Signed-off-by: Michael Margolin Acked-by: Gal Pressman Signed-off-by: Jason Gunthorpe

RDMA/hns: Support cqe inline in user space

2023-01-09T14:45:28Z

Enable the CQEIE field and configure the CQEIS field of QPC. And add compatibility handling. Link: https://lore.kernel.org/r/20221224102201.3114536-4-xuhaoyue1@hisilicon.com Signed-off-by: Luoyouming Signed-off-by: Haoyue Xu Signed-off-by: Jason Gunthorpe