diff options
| author | Shiraz Saleem <shiraz.saleem@intel.com> | 2025-08-27 10:25:37 -0500 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2025-09-18 04:48:45 -0400 |
| commit | d6ed4b69b8ea756200432099b9a525f23d2a4c56 (patch) | |
| tree | 8a6ef9417ed2297b17870952fc424f1822942991 /drivers/infiniband/hw/irdma/utils.c | |
| parent | 2ad49ae7330b8a456edf639c92241a343641a763 (diff) | |
RDMA/irdma: Add GEN3 virtual QP1 support
Add a new RDMA virtual channel op during QP1 creation that allow the
Control Plane (CP) to virtualize a regular QP as QP1 on non-default
RDMA capable vPorts. Additionally, the CP will return the Qsets to use
on the ib_device of the vPort.
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Link: https://patch.msgid.link/20250827152545.2056-9-tatyana.e.nikolova@intel.com
Tested-by: Jacob Moroni <jmoroni@google.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'drivers/infiniband/hw/irdma/utils.c')
| -rw-r--r-- | drivers/infiniband/hw/irdma/utils.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/irdma/utils.c b/drivers/infiniband/hw/irdma/utils.c index d4c51b56ed22..1fd09e287e6f 100644 --- a/drivers/infiniband/hw/irdma/utils.c +++ b/drivers/infiniband/hw/irdma/utils.c @@ -1113,6 +1113,26 @@ static void irdma_dealloc_push_page(struct irdma_pci_f *rf, irdma_put_cqp_request(&rf->cqp, cqp_request); } +static void irdma_free_gsi_qp_rsrc(struct irdma_qp *iwqp, u32 qp_num) +{ + struct irdma_device *iwdev = iwqp->iwdev; + struct irdma_pci_f *rf = iwdev->rf; + unsigned long flags; + + if (rf->sc_dev.hw_attrs.uk_attrs.hw_rev < IRDMA_GEN_3) + return; + + irdma_vchnl_req_del_vport(&rf->sc_dev, iwdev->vport_id, qp_num); + + if (qp_num == 1) { + spin_lock_irqsave(&rf->rsrc_lock, flags); + rf->hwqp1_rsvd = false; + spin_unlock_irqrestore(&rf->rsrc_lock, flags); + } else if (qp_num > 2) { + irdma_free_rsrc(rf, rf->allocated_qps, qp_num); + } +} + /** * irdma_free_qp_rsrc - free up memory resources for qp * @iwqp: qp ptr (user or kernel) @@ -1121,7 +1141,7 @@ void irdma_free_qp_rsrc(struct irdma_qp *iwqp) { struct irdma_device *iwdev = iwqp->iwdev; struct irdma_pci_f *rf = iwdev->rf; - u32 qp_num = iwqp->ibqp.qp_num; + u32 qp_num = iwqp->sc_qp.qp_uk.qp_id; irdma_ieq_cleanup_qp(iwdev->vsi.ieq, &iwqp->sc_qp); irdma_dealloc_push_page(rf, &iwqp->sc_qp); @@ -1131,8 +1151,12 @@ void irdma_free_qp_rsrc(struct irdma_qp *iwqp) iwqp->sc_qp.user_pri); } - if (qp_num > 2) - irdma_free_rsrc(rf, rf->allocated_qps, qp_num); + if (iwqp->ibqp.qp_type == IB_QPT_GSI) { + irdma_free_gsi_qp_rsrc(iwqp, qp_num); + } else { + if (qp_num > 2) + irdma_free_rsrc(rf, rf->allocated_qps, qp_num); + } dma_free_coherent(rf->sc_dev.hw->device, iwqp->q2_ctx_mem.size, iwqp->q2_ctx_mem.va, iwqp->q2_ctx_mem.pa); iwqp->q2_ctx_mem.va = NULL; |