* reserved for the function. The driver may choose to allocate fewer
* resources than the firmware maximum.
*/
-static void bnxt_re_set_resource_limits(struct bnxt_re_dev *rdev)
+static void bnxt_re_limit_pf_res(struct bnxt_re_dev *rdev)
{
- u32 vf_qps = 0, vf_srqs = 0, vf_cqs = 0, vf_mrws = 0, vf_gids = 0;
- u32 i;
- u32 vf_pct;
- u32 num_vfs;
- struct bnxt_qplib_dev_attr *dev_attr = &rdev->dev_attr;
+ struct bnxt_qplib_dev_attr *attr;
+ struct bnxt_qplib_ctx *ctx;
+ int i;
- rdev->qplib_ctx.qpc_count = min_t(u32, BNXT_RE_MAX_QPC_COUNT,
- dev_attr->max_qp);
+ attr = &rdev->dev_attr;
+ ctx = &rdev->qplib_ctx;
- rdev->qplib_ctx.mrw_count = BNXT_RE_MAX_MRW_COUNT_256K;
+ ctx->qpc_count = min_t(u32, BNXT_RE_MAX_QPC_COUNT,
+ attr->max_qp);
+ ctx->mrw_count = BNXT_RE_MAX_MRW_COUNT_256K;
/* Use max_mr from fw since max_mrw does not get set */
- rdev->qplib_ctx.mrw_count = min_t(u32, rdev->qplib_ctx.mrw_count,
- dev_attr->max_mr);
- rdev->qplib_ctx.srqc_count = min_t(u32, BNXT_RE_MAX_SRQC_COUNT,
- dev_attr->max_srq);
- rdev->qplib_ctx.cq_count = min_t(u32, BNXT_RE_MAX_CQ_COUNT,
- dev_attr->max_cq);
-
- for (i = 0; i < MAX_TQM_ALLOC_REQ; i++)
- rdev->qplib_ctx.tqm_count[i] =
- rdev->dev_attr.tqm_alloc_reqs[i];
-
- if (rdev->num_vfs) {
- /*
- * Reserve a set of resources for the PF. Divide the remaining
- * resources among the VFs
- */
- vf_pct = 100 - BNXT_RE_PCT_RSVD_FOR_PF;
- num_vfs = 100 * rdev->num_vfs;
- vf_qps = (rdev->qplib_ctx.qpc_count * vf_pct) / num_vfs;
- vf_srqs = (rdev->qplib_ctx.srqc_count * vf_pct) / num_vfs;
- vf_cqs = (rdev->qplib_ctx.cq_count * vf_pct) / num_vfs;
- /*
- * The driver allows many more MRs than other resources. If the
- * firmware does also, then reserve a fixed amount for the PF
- * and divide the rest among VFs. VFs may use many MRs for NFS
- * mounts, ISER, NVME applications, etc. If the firmware
- * severely restricts the number of MRs, then let PF have
- * half and divide the rest among VFs, as for the other
- * resource types.
- */
- if (rdev->qplib_ctx.mrw_count < BNXT_RE_MAX_MRW_COUNT_64K)
- vf_mrws = rdev->qplib_ctx.mrw_count * vf_pct / num_vfs;
- else
- vf_mrws = (rdev->qplib_ctx.mrw_count -
- BNXT_RE_RESVD_MR_FOR_PF) / rdev->num_vfs;
- vf_gids = BNXT_RE_MAX_GID_PER_VF;
+ ctx->mrw_count = min_t(u32, ctx->mrw_count, attr->max_mr);
+ ctx->srqc_count = min_t(u32, BNXT_RE_MAX_SRQC_COUNT,
+ attr->max_srq);
+ ctx->cq_count = min_t(u32, BNXT_RE_MAX_CQ_COUNT, attr->max_cq);
+ if (!bnxt_qplib_is_chip_gen_p5(&rdev->chip_ctx))
+ for (i = 0; i < MAX_TQM_ALLOC_REQ; i++)
+ rdev->qplib_ctx.tqm_count[i] =
+ rdev->dev_attr.tqm_alloc_reqs[i];
+}
+
+static void bnxt_re_limit_vf_res(struct bnxt_qplib_ctx *qplib_ctx, u32 num_vf)
+{
+ struct bnxt_qplib_vf_res *vf_res;
+ u32 mrws = 0;
+ u32 vf_pct;
+ u32 nvfs;
+
+ vf_res = &qplib_ctx->vf_res;
+ /*
+ * Reserve a set of resources for the PF. Divide the remaining
+ * resources among the VFs
+ */
+ vf_pct = 100 - BNXT_RE_PCT_RSVD_FOR_PF;
+ nvfs = num_vf;
+ num_vf = 100 * num_vf;
+ vf_res->max_qp_per_vf = (qplib_ctx->qpc_count * vf_pct) / num_vf;
+ vf_res->max_srq_per_vf = (qplib_ctx->srqc_count * vf_pct) / num_vf;
+ vf_res->max_cq_per_vf = (qplib_ctx->cq_count * vf_pct) / num_vf;
+ /*
+ * The driver allows many more MRs than other resources. If the
+ * firmware does also, then reserve a fixed amount for the PF and
+ * divide the rest among VFs. VFs may use many MRs for NFS
+ * mounts, ISER, NVME applications, etc. If the firmware severely
+ * restricts the number of MRs, then let PF have half and divide
+ * the rest among VFs, as for the other resource types.
+ */
+ if (qplib_ctx->mrw_count < BNXT_RE_MAX_MRW_COUNT_64K) {
+ mrws = qplib_ctx->mrw_count * vf_pct;
+ nvfs = num_vf;
+ } else {
+ mrws = qplib_ctx->mrw_count - BNXT_RE_RESVD_MR_FOR_PF;
}
- rdev->qplib_ctx.vf_res.max_mrw_per_vf = vf_mrws;
- rdev->qplib_ctx.vf_res.max_gid_per_vf = vf_gids;
- rdev->qplib_ctx.vf_res.max_qp_per_vf = vf_qps;
- rdev->qplib_ctx.vf_res.max_srq_per_vf = vf_srqs;
- rdev->qplib_ctx.vf_res.max_cq_per_vf = vf_cqs;
+ vf_res->max_mrw_per_vf = (mrws / nvfs);
+ vf_res->max_gid_per_vf = BNXT_RE_MAX_GID_PER_VF;
+}
+
+static void bnxt_re_set_resource_limits(struct bnxt_re_dev *rdev)
+{
+ u32 num_vfs;
+
+ memset(&rdev->qplib_ctx.vf_res, 0, sizeof(struct bnxt_qplib_vf_res));
+ bnxt_re_limit_pf_res(rdev);
+
+ num_vfs = bnxt_qplib_is_chip_gen_p5(&rdev->chip_ctx) ?
+ BNXT_RE_GEN_P5_MAX_VF : rdev->num_vfs;
+ if (num_vfs)
+ bnxt_re_limit_vf_res(&rdev->qplib_ctx, num_vfs);
}
/* for handling bnxt_en callbacks later */
return;
rdev->num_vfs = num_vfs;
- bnxt_re_set_resource_limits(rdev);
- bnxt_qplib_set_func_resources(&rdev->qplib_res, &rdev->rcfw,
- &rdev->qplib_ctx);
+ if (!bnxt_qplib_is_chip_gen_p5(&rdev->chip_ctx)) {
+ bnxt_re_set_resource_limits(rdev);
+ bnxt_qplib_set_func_resources(&rdev->qplib_res, &rdev->rcfw,
+ &rdev->qplib_ctx);
+ }
}
static void bnxt_re_shutdown(void *p)
return 0;
}
+#define BNXT_RE_GEN_P5_PF_NQ_DB 0x10000
+#define BNXT_RE_GEN_P5_VF_NQ_DB 0x4000
static u32 bnxt_re_get_nqdb_offset(struct bnxt_re_dev *rdev, u16 indx)
{
return bnxt_qplib_is_chip_gen_p5(&rdev->chip_ctx) ?
- 0x10000 : rdev->msix_entries[indx].db_offset;
+ (rdev->is_virtfn ? BNXT_RE_GEN_P5_VF_NQ_DB :
+ BNXT_RE_GEN_P5_PF_NQ_DB) :
+ rdev->msix_entries[indx].db_offset;
}
static void bnxt_re_cleanup_res(struct bnxt_re_dev *rdev)
rdev->is_virtfn);
if (rc)
goto disable_rcfw;
- if (!rdev->is_virtfn)
- bnxt_re_set_resource_limits(rdev);
+
+ bnxt_re_set_resource_limits(rdev);
rc = bnxt_qplib_alloc_ctx(rdev->en_dev->pdev, &rdev->qplib_ctx, 0,
bnxt_qplib_is_chip_gen_p5(&rdev->chip_ctx));