Support for irdma gen3 #1640
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Support for irdma gen3 #1640
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Enable 64-byte CQE support if the feature flag IRDMA_FEATURE_64_BYTE_CQE is set. Adjust the CQ size calculations in create_cq() and resize_cq() and use get_cq_size() in resize CQ instead of calculating again. Make CQ size an even number, which is a GEN 3 HW requirement. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Modify cq_poll_compl() to poll flushed CQEs for GEN 3 Add IBV_WC_RETRY_EXC_ERR and FLUSH_RNR_RETRY_EXC_ERR to the returned ibv_wc_status errors Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Add set_ib_wc_op_rq_gen_3() to set the ibv_wc opcodes for GEN 3 RQ completions Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Set WQE_FORMAT_V2 flag in ucontext allocation request. This prevents driver from binding GEN3 devices to older user-space providers Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Add atomic operations support for GEN 3 devices, namely Compare and Swap and Fetch and Add. Add FEATURE_ATOMIC_OPS check to allow atomic ops only when supported. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Implement verb API and UAPI changes to support SRQ functionality in GEN 3 devices. Add SRQ feature check and register the SRQ device ops only if SRQ is supported. Provide function ae_to_qp_err_code() to translate AE codes into QP errors. The function can be leveraged for flushed CQEs and error CQEs associated with an SRQ. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Remove deprecated timestamp functionality for GEN 2. Enable FEATURE_CQE_TIMESTAMPING for GEN 3 devices. The Host Channel Adapter (HCA) core clock frequency in the timestamp info is retrieved from the CQE. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Enable Type2 MW for GEN3 devices. Type2 MW is disabled for GEN2/1 devices via the capability flag in query_device. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Update kernel headers to patch
("[for-next 12/16] RDMA/irdma: Add SRQ support") at
https://lore.kernel.org/all/20250827152545.2056-13-tatyana.e.nikolova@intel.com/
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
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[PATCH 0/9] Add RDMA support for Intel IPU E2000 (GEN 3)
This patch series introduces the user space RDMA RoCEv2 support
for the Intel Infrastructure Processing Unit (IPU) E2000 line of
products, referred to as GEN 3 in the irdma provider.
The patch series for the kernel GEN 3 irdma driver is at
https://lore.kernel.org/all/20250827152545.2056-1-tatyana.e.nikolova@intel.com/
Key highlights of this series as it pertains to GEN 3 device include:
The patches have been tested on a range of hosts and platforms with a variety
of general RDMA applications which include standalone verbs (rping, perftest, etc.),
storage and HPC applications.
Changelog:
Differences from the prior RFC PR at #1486
for this series include: