summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/hw/cxgb4/restrack.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/hw/cxgb4/restrack.c')
-rw-r--r--drivers/infiniband/hw/cxgb4/restrack.c501
1 files changed, 501 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb4/restrack.c b/drivers/infiniband/hw/cxgb4/restrack.c
new file mode 100644
index 000000000..9a7520ee4
--- /dev/null
+++ b/drivers/infiniband/hw/cxgb4/restrack.c
@@ -0,0 +1,501 @@
+/*
+ * Copyright (c) 2018 Chelsio, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <rdma/rdma_cm.h>
+
+#include "iw_cxgb4.h"
+#include <rdma/restrack.h>
+#include <uapi/rdma/rdma_netlink.h>
+
+static int fill_sq(struct sk_buff *msg, struct t4_wq *wq)
+{
+ /* WQ+SQ */
+ if (rdma_nl_put_driver_u32(msg, "sqid", wq->sq.qid))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "flushed", wq->flushed))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "memsize", wq->sq.memsize))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "cidx", wq->sq.cidx))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "pidx", wq->sq.pidx))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "wq_pidx", wq->sq.wq_pidx))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "flush_cidx", wq->sq.flush_cidx))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "in_use", wq->sq.in_use))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "size", wq->sq.size))
+ goto err;
+ if (rdma_nl_put_driver_u32_hex(msg, "flags", wq->sq.flags))
+ goto err;
+ return 0;
+err:
+ return -EMSGSIZE;
+}
+
+static int fill_rq(struct sk_buff *msg, struct t4_wq *wq)
+{
+ /* RQ */
+ if (rdma_nl_put_driver_u32(msg, "rqid", wq->rq.qid))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "memsize", wq->rq.memsize))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "cidx", wq->rq.cidx))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "pidx", wq->rq.pidx))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "wq_pidx", wq->rq.wq_pidx))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "msn", wq->rq.msn))
+ goto err;
+ if (rdma_nl_put_driver_u32_hex(msg, "rqt_hwaddr", wq->rq.rqt_hwaddr))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "rqt_size", wq->rq.rqt_size))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "in_use", wq->rq.in_use))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "size", wq->rq.size))
+ goto err;
+ return 0;
+err:
+ return -EMSGSIZE;
+}
+
+static int fill_swsqe(struct sk_buff *msg, struct t4_sq *sq, u16 idx,
+ struct t4_swsqe *sqe)
+{
+ if (rdma_nl_put_driver_u32(msg, "idx", idx))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "opcode", sqe->opcode))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "complete", sqe->complete))
+ goto err;
+ if (sqe->complete &&
+ rdma_nl_put_driver_u32(msg, "cqe_status", CQE_STATUS(&sqe->cqe)))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "signaled", sqe->signaled))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "flushed", sqe->flushed))
+ goto err;
+ return 0;
+err:
+ return -EMSGSIZE;
+}
+
+/*
+ * Dump the first and last pending sqes.
+ */
+static int fill_swsqes(struct sk_buff *msg, struct t4_sq *sq,
+ u16 first_idx, struct t4_swsqe *first_sqe,
+ u16 last_idx, struct t4_swsqe *last_sqe)
+{
+ if (!first_sqe)
+ goto out;
+ if (fill_swsqe(msg, sq, first_idx, first_sqe))
+ goto err;
+ if (!last_sqe)
+ goto out;
+ if (fill_swsqe(msg, sq, last_idx, last_sqe))
+ goto err;
+out:
+ return 0;
+err:
+ return -EMSGSIZE;
+}
+
+static int fill_res_qp_entry(struct sk_buff *msg,
+ struct rdma_restrack_entry *res)
+{
+ struct ib_qp *ibqp = container_of(res, struct ib_qp, res);
+ struct t4_swsqe *fsp = NULL, *lsp = NULL;
+ struct c4iw_qp *qhp = to_c4iw_qp(ibqp);
+ u16 first_sq_idx = 0, last_sq_idx = 0;
+ struct t4_swsqe first_sqe, last_sqe;
+ struct nlattr *table_attr;
+ struct t4_wq wq;
+
+ /* User qp state is not available, so don't dump user qps */
+ if (qhp->ucontext)
+ return 0;
+
+ table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER);
+ if (!table_attr)
+ goto err;
+
+ /* Get a consistent snapshot */
+ spin_lock_irq(&qhp->lock);
+ wq = qhp->wq;
+
+ /* If there are any pending sqes, copy the first and last */
+ if (wq.sq.cidx != wq.sq.pidx) {
+ first_sq_idx = wq.sq.cidx;
+ first_sqe = qhp->wq.sq.sw_sq[first_sq_idx];
+ fsp = &first_sqe;
+ last_sq_idx = wq.sq.pidx;
+ if (last_sq_idx-- == 0)
+ last_sq_idx = wq.sq.size - 1;
+ if (last_sq_idx != first_sq_idx) {
+ last_sqe = qhp->wq.sq.sw_sq[last_sq_idx];
+ lsp = &last_sqe;
+ }
+ }
+ spin_unlock_irq(&qhp->lock);
+
+ if (fill_sq(msg, &wq))
+ goto err_cancel_table;
+
+ if (fill_swsqes(msg, &wq.sq, first_sq_idx, fsp, last_sq_idx, lsp))
+ goto err_cancel_table;
+
+ if (fill_rq(msg, &wq))
+ goto err_cancel_table;
+
+ nla_nest_end(msg, table_attr);
+ return 0;
+
+err_cancel_table:
+ nla_nest_cancel(msg, table_attr);
+err:
+ return -EMSGSIZE;
+}
+
+union union_ep {
+ struct c4iw_listen_ep lep;
+ struct c4iw_ep ep;
+};
+
+static int fill_res_ep_entry(struct sk_buff *msg,
+ struct rdma_restrack_entry *res)
+{
+ struct rdma_cm_id *cm_id = rdma_res_to_id(res);
+ struct nlattr *table_attr;
+ struct c4iw_ep_common *epcp;
+ struct c4iw_listen_ep *listen_ep = NULL;
+ struct c4iw_ep *ep = NULL;
+ struct iw_cm_id *iw_cm_id;
+ union union_ep *uep;
+
+ iw_cm_id = rdma_iw_cm_id(cm_id);
+ if (!iw_cm_id)
+ return 0;
+ epcp = (struct c4iw_ep_common *)iw_cm_id->provider_data;
+ if (!epcp)
+ return 0;
+ uep = kcalloc(1, sizeof(*uep), GFP_KERNEL);
+ if (!uep)
+ return 0;
+
+ table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER);
+ if (!table_attr)
+ goto err_free_uep;
+
+ /* Get a consistent snapshot */
+ mutex_lock(&epcp->mutex);
+ if (epcp->state == LISTEN) {
+ uep->lep = *(struct c4iw_listen_ep *)epcp;
+ mutex_unlock(&epcp->mutex);
+ listen_ep = &uep->lep;
+ epcp = &listen_ep->com;
+ } else {
+ uep->ep = *(struct c4iw_ep *)epcp;
+ mutex_unlock(&epcp->mutex);
+ ep = &uep->ep;
+ epcp = &ep->com;
+ }
+
+ if (rdma_nl_put_driver_u32(msg, "state", epcp->state))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u64_hex(msg, "flags", epcp->flags))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u64_hex(msg, "history", epcp->history))
+ goto err_cancel_table;
+
+ if (epcp->state == LISTEN) {
+ if (rdma_nl_put_driver_u32(msg, "stid", listen_ep->stid))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u32(msg, "backlog", listen_ep->backlog))
+ goto err_cancel_table;
+ } else {
+ if (rdma_nl_put_driver_u32(msg, "hwtid", ep->hwtid))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u32(msg, "ord", ep->ord))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u32(msg, "ird", ep->ird))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u32(msg, "emss", ep->emss))
+ goto err_cancel_table;
+
+ if (!ep->parent_ep && rdma_nl_put_driver_u32(msg, "atid",
+ ep->atid))
+ goto err_cancel_table;
+ }
+ nla_nest_end(msg, table_attr);
+ kfree(uep);
+ return 0;
+
+err_cancel_table:
+ nla_nest_cancel(msg, table_attr);
+err_free_uep:
+ kfree(uep);
+ return -EMSGSIZE;
+}
+
+static int fill_cq(struct sk_buff *msg, struct t4_cq *cq)
+{
+ if (rdma_nl_put_driver_u32(msg, "cqid", cq->cqid))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "memsize", cq->memsize))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "size", cq->size))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "cidx", cq->cidx))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "cidx_inc", cq->cidx_inc))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "sw_cidx", cq->sw_cidx))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "sw_pidx", cq->sw_pidx))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "sw_in_use", cq->sw_in_use))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "vector", cq->vector))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "gen", cq->gen))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "error", cq->error))
+ goto err;
+ if (rdma_nl_put_driver_u64_hex(msg, "bits_type_ts",
+ be64_to_cpu(cq->bits_type_ts)))
+ goto err;
+ if (rdma_nl_put_driver_u64_hex(msg, "flags", cq->flags))
+ goto err;
+
+ return 0;
+
+err:
+ return -EMSGSIZE;
+}
+
+static int fill_cqe(struct sk_buff *msg, struct t4_cqe *cqe, u16 idx,
+ const char *qstr)
+{
+ if (rdma_nl_put_driver_u32(msg, qstr, idx))
+ goto err;
+ if (rdma_nl_put_driver_u32_hex(msg, "header",
+ be32_to_cpu(cqe->header)))
+ goto err;
+ if (rdma_nl_put_driver_u32(msg, "len", be32_to_cpu(cqe->len)))
+ goto err;
+ if (rdma_nl_put_driver_u32_hex(msg, "wrid_hi",
+ be32_to_cpu(cqe->u.gen.wrid_hi)))
+ goto err;
+ if (rdma_nl_put_driver_u32_hex(msg, "wrid_low",
+ be32_to_cpu(cqe->u.gen.wrid_low)))
+ goto err;
+ if (rdma_nl_put_driver_u64_hex(msg, "bits_type_ts",
+ be64_to_cpu(cqe->bits_type_ts)))
+ goto err;
+
+ return 0;
+
+err:
+ return -EMSGSIZE;
+}
+
+static int fill_hwcqes(struct sk_buff *msg, struct t4_cq *cq,
+ struct t4_cqe *cqes)
+{
+ u16 idx;
+
+ idx = (cq->cidx > 0) ? cq->cidx - 1 : cq->size - 1;
+ if (fill_cqe(msg, cqes, idx, "hwcq_idx"))
+ goto err;
+ idx = cq->cidx;
+ if (fill_cqe(msg, cqes + 1, idx, "hwcq_idx"))
+ goto err;
+
+ return 0;
+err:
+ return -EMSGSIZE;
+}
+
+static int fill_swcqes(struct sk_buff *msg, struct t4_cq *cq,
+ struct t4_cqe *cqes)
+{
+ u16 idx;
+
+ if (!cq->sw_in_use)
+ return 0;
+
+ idx = cq->sw_cidx;
+ if (fill_cqe(msg, cqes, idx, "swcq_idx"))
+ goto err;
+ if (cq->sw_in_use == 1)
+ goto out;
+ idx = (cq->sw_pidx > 0) ? cq->sw_pidx - 1 : cq->size - 1;
+ if (fill_cqe(msg, cqes + 1, idx, "swcq_idx"))
+ goto err;
+out:
+ return 0;
+err:
+ return -EMSGSIZE;
+}
+
+static int fill_res_cq_entry(struct sk_buff *msg,
+ struct rdma_restrack_entry *res)
+{
+ struct ib_cq *ibcq = container_of(res, struct ib_cq, res);
+ struct c4iw_cq *chp = to_c4iw_cq(ibcq);
+ struct nlattr *table_attr;
+ struct t4_cqe hwcqes[2];
+ struct t4_cqe swcqes[2];
+ struct t4_cq cq;
+ u16 idx;
+
+ /* User cq state is not available, so don't dump user cqs */
+ if (ibcq->uobject)
+ return 0;
+
+ table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER);
+ if (!table_attr)
+ goto err;
+
+ /* Get a consistent snapshot */
+ spin_lock_irq(&chp->lock);
+
+ /* t4_cq struct */
+ cq = chp->cq;
+
+ /* get 2 hw cqes: cidx-1, and cidx */
+ idx = (cq.cidx > 0) ? cq.cidx - 1 : cq.size - 1;
+ hwcqes[0] = chp->cq.queue[idx];
+
+ idx = cq.cidx;
+ hwcqes[1] = chp->cq.queue[idx];
+
+ /* get first and last sw cqes */
+ if (cq.sw_in_use) {
+ swcqes[0] = chp->cq.sw_queue[cq.sw_cidx];
+ if (cq.sw_in_use > 1) {
+ idx = (cq.sw_pidx > 0) ? cq.sw_pidx - 1 : cq.size - 1;
+ swcqes[1] = chp->cq.sw_queue[idx];
+ }
+ }
+
+ spin_unlock_irq(&chp->lock);
+
+ if (fill_cq(msg, &cq))
+ goto err_cancel_table;
+
+ if (fill_swcqes(msg, &cq, swcqes))
+ goto err_cancel_table;
+
+ if (fill_hwcqes(msg, &cq, hwcqes))
+ goto err_cancel_table;
+
+ nla_nest_end(msg, table_attr);
+ return 0;
+
+err_cancel_table:
+ nla_nest_cancel(msg, table_attr);
+err:
+ return -EMSGSIZE;
+}
+
+static int fill_res_mr_entry(struct sk_buff *msg,
+ struct rdma_restrack_entry *res)
+{
+ struct ib_mr *ibmr = container_of(res, struct ib_mr, res);
+ struct c4iw_mr *mhp = to_c4iw_mr(ibmr);
+ struct c4iw_dev *dev = mhp->rhp;
+ u32 stag = mhp->attr.stag;
+ struct nlattr *table_attr;
+ struct fw_ri_tpte tpte;
+ int ret;
+
+ if (!stag)
+ return 0;
+
+ table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER);
+ if (!table_attr)
+ goto err;
+
+ ret = cxgb4_read_tpte(dev->rdev.lldi.ports[0], stag, (__be32 *)&tpte);
+ if (ret) {
+ dev_err(&dev->rdev.lldi.pdev->dev,
+ "%s cxgb4_read_tpte err %d\n", __func__, ret);
+ return 0;
+ }
+
+ if (rdma_nl_put_driver_u32_hex(msg, "idx", stag >> 8))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u32(msg, "valid",
+ FW_RI_TPTE_VALID_G(ntohl(tpte.valid_to_pdid))))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u32_hex(msg, "key", stag & 0xff))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u32(msg, "state",
+ FW_RI_TPTE_STAGSTATE_G(ntohl(tpte.valid_to_pdid))))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u32(msg, "pdid",
+ FW_RI_TPTE_PDID_G(ntohl(tpte.valid_to_pdid))))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u32_hex(msg, "perm",
+ FW_RI_TPTE_PERM_G(ntohl(tpte.locread_to_qpid))))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u32(msg, "ps",
+ FW_RI_TPTE_PS_G(ntohl(tpte.locread_to_qpid))))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u64(msg, "len",
+ ((u64)ntohl(tpte.len_hi) << 32) | ntohl(tpte.len_lo)))
+ goto err_cancel_table;
+ if (rdma_nl_put_driver_u32_hex(msg, "pbl_addr",
+ FW_RI_TPTE_PBLADDR_G(ntohl(tpte.nosnoop_pbladdr))))
+ goto err_cancel_table;
+
+ nla_nest_end(msg, table_attr);
+ return 0;
+
+err_cancel_table:
+ nla_nest_cancel(msg, table_attr);
+err:
+ return -EMSGSIZE;
+}
+
+c4iw_restrack_func *c4iw_restrack_funcs[RDMA_RESTRACK_MAX] = {
+ [RDMA_RESTRACK_QP] = fill_res_qp_entry,
+ [RDMA_RESTRACK_CM_ID] = fill_res_ep_entry,
+ [RDMA_RESTRACK_CQ] = fill_res_cq_entry,
+ [RDMA_RESTRACK_MR] = fill_res_mr_entry,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 15:13:55 +0000