diff options
Diffstat (limited to 'drivers/infiniband/hw/ionic/ionic_controlpath.c')
| -rw-r--r-- | drivers/infiniband/hw/ionic/ionic_controlpath.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ionic/ionic_controlpath.c b/drivers/infiniband/hw/ionic/ionic_controlpath.c index 9d91f7667d4f..a70ef59a8064 100644 --- a/drivers/infiniband/hw/ionic/ionic_controlpath.c +++ b/drivers/infiniband/hw/ionic/ionic_controlpath.c @@ -391,6 +391,16 @@ int ionic_alloc_ucontext(struct ib_ucontext *ibctx, struct ib_udata *udata) goto err_mmap_dbell; } + if (dev->lif_cfg.phc_state) { + ctx->mmap_phc = ionic_mmap_entry_insert(ctx, PAGE_SIZE, 0, + IONIC_MMAP_PHC, + &resp.phc_offset); + if (!ctx->mmap_phc) { + rc = -ENOMEM; + goto err_mmap_phc; + } + } + resp.page_shift = PAGE_SHIFT; resp.dbell_offset = db_phys & ~PAGE_MASK; @@ -421,6 +431,8 @@ int ionic_alloc_ucontext(struct ib_ucontext *ibctx, struct ib_udata *udata) return 0; err_resp: + rdma_user_mmap_entry_remove(ctx->mmap_phc); +err_mmap_phc: rdma_user_mmap_entry_remove(ctx->mmap_dbell); err_mmap_dbell: ionic_put_dbid(dev, ctx->dbid); @@ -433,10 +445,26 @@ void ionic_dealloc_ucontext(struct ib_ucontext *ibctx) struct ionic_ibdev *dev = to_ionic_ibdev(ibctx->device); struct ionic_ctx *ctx = to_ionic_ctx(ibctx); + rdma_user_mmap_entry_remove(ctx->mmap_phc); rdma_user_mmap_entry_remove(ctx->mmap_dbell); ionic_put_dbid(dev, ctx->dbid); } +static int ionic_mmap_phc_state(struct ionic_ibdev *dev, + struct vm_area_struct *vma) +{ + if (!(vma->vm_flags & VM_SHARED)) + return -EINVAL; + + if (vma->vm_flags & (VM_WRITE | VM_EXEC)) + return -EPERM; + + vm_flags_clear(vma, VM_MAYWRITE); + + return vm_insert_page(vma, vma->vm_start, + virt_to_page(dev->lif_cfg.phc_state)); +} + int ionic_mmap(struct ib_ucontext *ibctx, struct vm_area_struct *vma) { struct ionic_ibdev *dev = to_ionic_ibdev(ibctx->device); @@ -455,6 +483,12 @@ int ionic_mmap(struct ib_ucontext *ibctx, struct vm_area_struct *vma) ionic_entry = container_of(rdma_entry, struct ionic_mmap_entry, rdma_entry); + if (ionic_entry->mmap_flags & IONIC_MMAP_PHC) { + rc = ionic_mmap_phc_state(dev, vma); + rdma_user_mmap_entry_put(rdma_entry); + return rc; + } + ibdev_dbg(&dev->ibdev, "writecombine? %d\n", ionic_entry->mmap_flags & IONIC_MMAP_WC); if (ionic_entry->mmap_flags & IONIC_MMAP_WC) @@ -487,6 +521,11 @@ int ionic_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) { struct ionic_ibdev *dev = to_ionic_ibdev(ibpd->device); struct ionic_pd *pd = to_ionic_pd(ibpd); + int rc; + + rc = ib_no_udata_io(udata); + if (rc) + return rc; return ionic_get_pdid(dev, &pd->pdid); } @@ -495,6 +534,11 @@ int ionic_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) { struct ionic_ibdev *dev = to_ionic_ibdev(ibpd->device); struct ionic_pd *pd = to_ionic_pd(ibpd); + int rc; + + rc = ib_no_udata_io(udata); + if (rc) + return rc; ionic_put_pdid(dev, pd->pdid); @@ -741,6 +785,10 @@ int ionic_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *init_attr, u32 flags = init_attr->flags; int rc; + rc = ib_is_udata_in_empty(udata); + if (rc) + return rc; + rc = ionic_get_ahid(dev, &ah->ahid); if (rc) return rc; @@ -877,6 +925,10 @@ struct ib_mr *ionic_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 length, unsigned long pg_sz; int rc; + rc = ib_no_udata_io(udata); + if (rc) + return ERR_PTR(rc); + if (dmah) return ERR_PTR(-EOPNOTSUPP); @@ -1008,6 +1060,10 @@ int ionic_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata) struct ionic_mr *mr = to_ionic_mr(ibmr); int rc; + rc = ib_no_udata_io(udata); + if (rc) + return rc; + if (!mr->ibmr.lkey) goto out; @@ -1120,6 +1176,10 @@ int ionic_alloc_mw(struct ib_mw *ibmw, struct ib_udata *udata) struct ionic_mr *mr = to_ionic_mw(ibmw); int rc; + rc = ib_no_udata_io(udata); + if (rc) + return rc; + rc = ionic_get_mrid(dev, &mr->mrid); if (rc) return rc; @@ -1292,6 +1352,10 @@ int ionic_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata) struct ionic_vcq *vcq = to_ionic_vcq(ibcq); int udma_idx, rc_tmp, rc = 0; + rc = ib_no_udata_io(udata); + if (rc) + return rc; + for (udma_idx = dev->lif_cfg.udma_count; udma_idx; ) { --udma_idx; @@ -2585,6 +2649,10 @@ int ionic_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int mask, struct ionic_qp *qp = to_ionic_qp(ibqp); int rc; + rc = ib_no_udata_io(udata); + if (rc) + return rc; + rc = ionic_check_modify_qp(qp, attr, mask); if (rc) return rc; @@ -2658,6 +2726,10 @@ int ionic_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata) struct ionic_cq *cq; int rc; + rc = ib_no_udata_io(udata); + if (rc) + return rc; + rc = ionic_destroy_qp_cmd(dev, qp->qpid); if (rc) return rc; |