diff options
Diffstat (limited to 'drivers/infiniband/hw/cxgb4/device.c')
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/device.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c index 7ed32537eb59..83209bb38285 100644 --- a/drivers/infiniband/hw/cxgb4/device.c +++ b/drivers/infiniband/hw/cxgb4/device.c @@ -765,6 +765,29 @@ static int c4iw_rdev_open(struct c4iw_rdev *rdev) c4iw_init_dev_ucontext(rdev, &rdev->uctx); /* + * This implementation assumes udb_density == ucq_density! Eventually + * we might need to support this but for now fail the open. Also the + * cqid and qpid range must match for now. + */ + if (rdev->lldi.udb_density != rdev->lldi.ucq_density) { + pr_err(MOD "%s: unsupported udb/ucq densities %u/%u\n", + pci_name(rdev->lldi.pdev), rdev->lldi.udb_density, + rdev->lldi.ucq_density); + err = -EINVAL; + goto err1; + } + if (rdev->lldi.vr->qp.start != rdev->lldi.vr->cq.start || + rdev->lldi.vr->qp.size != rdev->lldi.vr->cq.size) { + pr_err(MOD "%s: unsupported qp and cq id ranges " + "qp start %u size %u cq start %u size %u\n", + pci_name(rdev->lldi.pdev), rdev->lldi.vr->qp.start, + rdev->lldi.vr->qp.size, rdev->lldi.vr->cq.size, + rdev->lldi.vr->cq.size); + err = -EINVAL; + goto err1; + } + + /* * qpshift is the number of bits to shift the qpid left in order * to get the correct address of the doorbell for that qp. */ |