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| author | Selvin Xavier <selvin.xavier@broadcom.com> | 2018-01-11 11:52:07 -0500 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2018-01-17 09:56:17 -0500 |
| commit | ccd9d0d3dffcd783a1a626337146b79f4c4ee53d (patch) | |
| tree | c66fe0f589c47c2be9cd927538f4763203a0ab76 /drivers/infiniband/hw/bnxt_re/qplib_sp.c | |
| parent | f20d429511affab6a2a9129f46042f43e6ffe396 (diff) | |
| download | op-kernel-dev-ccd9d0d3dffcd783a1a626337146b79f4c4ee53d.zip op-kernel-dev-ccd9d0d3dffcd783a1a626337146b79f4c4ee53d.tar.gz | |
RDMA/bnxt_re: Enable RoCE on virtual functions
RoCE can be used by virtual functions (VFs) as well. Adding
code changes to allow resource reservation, initialization
and avail the resources to the RDMA applications running on
those VFs.
Currently, fifty percent of the total available resources
are reserved for PF and remaining are equally divided among
active VFs.
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/bnxt_re/qplib_sp.c')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_sp.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c index 9543ce5..f5450b7 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c @@ -65,7 +65,7 @@ static bool bnxt_qplib_is_atomic_cap(struct bnxt_qplib_rcfw *rcfw) } int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw, - struct bnxt_qplib_dev_attr *attr) + struct bnxt_qplib_dev_attr *attr, bool vf) { struct cmdq_query_func req; struct creq_query_func_resp resp; @@ -95,7 +95,8 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw, /* Extract the context from the side buffer */ attr->max_qp = le32_to_cpu(sb->max_qp); /* max_qp value reported by FW for PF doesn't include the QP1 for PF */ - attr->max_qp += 1; + if (!vf) + attr->max_qp += 1; attr->max_qp_rd_atom = sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ? BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom; @@ -150,6 +151,38 @@ bail: return rc; } +int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res, + struct bnxt_qplib_rcfw *rcfw, + struct bnxt_qplib_ctx *ctx) +{ + struct cmdq_set_func_resources req; + struct creq_set_func_resources_resp resp; + u16 cmd_flags = 0; + int rc = 0; + + RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags); + + req.number_of_qp = cpu_to_le32(ctx->qpc_count); + req.number_of_mrw = cpu_to_le32(ctx->mrw_count); + req.number_of_srq = cpu_to_le32(ctx->srqc_count); + req.number_of_cq = cpu_to_le32(ctx->cq_count); + + req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf); + req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf); + req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf); + req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf); + req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf); + + rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, + (void *)&resp, + NULL, 0); + if (rc) { + dev_err(&res->pdev->dev, + "QPLIB: Failed to set function resources"); + } + return rc; +} + /* SGID */ int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res, struct bnxt_qplib_sgid_tbl *sgid_tbl, int index, |
