488 lines
13 KiB
C
488 lines
13 KiB
C
/*
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* Copyright (c) 2018 Chelsio, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <rdma/rdma_cm.h>
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#include "iw_cxgb4.h"
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#include <rdma/restrack.h>
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#include <uapi/rdma/rdma_netlink.h>
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static int fill_sq(struct sk_buff *msg, struct t4_wq *wq)
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{
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/* WQ+SQ */
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if (rdma_nl_put_driver_u32(msg, "sqid", wq->sq.qid))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "flushed", wq->flushed))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "memsize", wq->sq.memsize))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "cidx", wq->sq.cidx))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "pidx", wq->sq.pidx))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "wq_pidx", wq->sq.wq_pidx))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "flush_cidx", wq->sq.flush_cidx))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "in_use", wq->sq.in_use))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "size", wq->sq.size))
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goto err;
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if (rdma_nl_put_driver_u32_hex(msg, "flags", wq->sq.flags))
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goto err;
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return 0;
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err:
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return -EMSGSIZE;
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}
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static int fill_rq(struct sk_buff *msg, struct t4_wq *wq)
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{
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/* RQ */
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if (rdma_nl_put_driver_u32(msg, "rqid", wq->rq.qid))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "memsize", wq->rq.memsize))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "cidx", wq->rq.cidx))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "pidx", wq->rq.pidx))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "wq_pidx", wq->rq.wq_pidx))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "msn", wq->rq.msn))
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goto err;
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if (rdma_nl_put_driver_u32_hex(msg, "rqt_hwaddr", wq->rq.rqt_hwaddr))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "rqt_size", wq->rq.rqt_size))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "in_use", wq->rq.in_use))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "size", wq->rq.size))
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goto err;
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return 0;
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err:
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return -EMSGSIZE;
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}
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static int fill_swsqe(struct sk_buff *msg, struct t4_sq *sq, u16 idx,
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struct t4_swsqe *sqe)
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{
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if (rdma_nl_put_driver_u32(msg, "idx", idx))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "opcode", sqe->opcode))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "complete", sqe->complete))
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goto err;
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if (sqe->complete &&
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rdma_nl_put_driver_u32(msg, "cqe_status", CQE_STATUS(&sqe->cqe)))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "signaled", sqe->signaled))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "flushed", sqe->flushed))
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goto err;
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return 0;
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err:
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return -EMSGSIZE;
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}
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/*
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* Dump the first and last pending sqes.
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*/
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static int fill_swsqes(struct sk_buff *msg, struct t4_sq *sq,
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u16 first_idx, struct t4_swsqe *first_sqe,
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u16 last_idx, struct t4_swsqe *last_sqe)
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{
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if (!first_sqe)
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goto out;
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if (fill_swsqe(msg, sq, first_idx, first_sqe))
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goto err;
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if (!last_sqe)
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goto out;
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if (fill_swsqe(msg, sq, last_idx, last_sqe))
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goto err;
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out:
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return 0;
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err:
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return -EMSGSIZE;
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}
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int c4iw_fill_res_qp_entry(struct sk_buff *msg, struct ib_qp *ibqp)
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{
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struct t4_swsqe *fsp = NULL, *lsp = NULL;
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struct c4iw_qp *qhp = to_c4iw_qp(ibqp);
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u16 first_sq_idx = 0, last_sq_idx = 0;
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struct t4_swsqe first_sqe, last_sqe;
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struct nlattr *table_attr;
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struct t4_wq wq;
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/* User qp state is not available, so don't dump user qps */
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if (qhp->ucontext)
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return 0;
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table_attr = nla_nest_start_noflag(msg, RDMA_NLDEV_ATTR_DRIVER);
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if (!table_attr)
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goto err;
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/* Get a consistent snapshot */
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spin_lock_irq(&qhp->lock);
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wq = qhp->wq;
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/* If there are any pending sqes, copy the first and last */
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if (wq.sq.cidx != wq.sq.pidx) {
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first_sq_idx = wq.sq.cidx;
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first_sqe = qhp->wq.sq.sw_sq[first_sq_idx];
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fsp = &first_sqe;
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last_sq_idx = wq.sq.pidx;
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if (last_sq_idx-- == 0)
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last_sq_idx = wq.sq.size - 1;
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if (last_sq_idx != first_sq_idx) {
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last_sqe = qhp->wq.sq.sw_sq[last_sq_idx];
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lsp = &last_sqe;
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}
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}
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spin_unlock_irq(&qhp->lock);
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if (fill_sq(msg, &wq))
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goto err_cancel_table;
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if (fill_swsqes(msg, &wq.sq, first_sq_idx, fsp, last_sq_idx, lsp))
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goto err_cancel_table;
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if (fill_rq(msg, &wq))
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goto err_cancel_table;
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nla_nest_end(msg, table_attr);
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return 0;
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err_cancel_table:
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nla_nest_cancel(msg, table_attr);
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err:
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return -EMSGSIZE;
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}
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union union_ep {
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struct c4iw_listen_ep lep;
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struct c4iw_ep ep;
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};
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int c4iw_fill_res_cm_id_entry(struct sk_buff *msg,
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struct rdma_cm_id *cm_id)
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{
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struct nlattr *table_attr;
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struct c4iw_ep_common *epcp;
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struct c4iw_listen_ep *listen_ep = NULL;
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struct c4iw_ep *ep = NULL;
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struct iw_cm_id *iw_cm_id;
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union union_ep *uep;
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iw_cm_id = rdma_iw_cm_id(cm_id);
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if (!iw_cm_id)
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return 0;
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epcp = (struct c4iw_ep_common *)iw_cm_id->provider_data;
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if (!epcp)
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return 0;
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uep = kzalloc(sizeof(*uep), GFP_KERNEL);
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if (!uep)
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return 0;
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table_attr = nla_nest_start_noflag(msg, RDMA_NLDEV_ATTR_DRIVER);
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if (!table_attr)
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goto err_free_uep;
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/* Get a consistent snapshot */
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mutex_lock(&epcp->mutex);
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if (epcp->state == LISTEN) {
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uep->lep = *(struct c4iw_listen_ep *)epcp;
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mutex_unlock(&epcp->mutex);
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listen_ep = &uep->lep;
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epcp = &listen_ep->com;
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} else {
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uep->ep = *(struct c4iw_ep *)epcp;
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mutex_unlock(&epcp->mutex);
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ep = &uep->ep;
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epcp = &ep->com;
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}
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if (rdma_nl_put_driver_u32(msg, "state", epcp->state))
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goto err_cancel_table;
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if (rdma_nl_put_driver_u64_hex(msg, "flags", epcp->flags))
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goto err_cancel_table;
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if (rdma_nl_put_driver_u64_hex(msg, "history", epcp->history))
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goto err_cancel_table;
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if (listen_ep) {
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if (rdma_nl_put_driver_u32(msg, "stid", listen_ep->stid))
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goto err_cancel_table;
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if (rdma_nl_put_driver_u32(msg, "backlog", listen_ep->backlog))
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goto err_cancel_table;
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} else {
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if (rdma_nl_put_driver_u32(msg, "hwtid", ep->hwtid))
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goto err_cancel_table;
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if (rdma_nl_put_driver_u32(msg, "ord", ep->ord))
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goto err_cancel_table;
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if (rdma_nl_put_driver_u32(msg, "ird", ep->ird))
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goto err_cancel_table;
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if (rdma_nl_put_driver_u32(msg, "emss", ep->emss))
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goto err_cancel_table;
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if (!ep->parent_ep && rdma_nl_put_driver_u32(msg, "atid",
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ep->atid))
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goto err_cancel_table;
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}
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nla_nest_end(msg, table_attr);
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kfree(uep);
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return 0;
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err_cancel_table:
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nla_nest_cancel(msg, table_attr);
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err_free_uep:
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kfree(uep);
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return -EMSGSIZE;
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}
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static int fill_cq(struct sk_buff *msg, struct t4_cq *cq)
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{
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if (rdma_nl_put_driver_u32(msg, "cqid", cq->cqid))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "memsize", cq->memsize))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "size", cq->size))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "cidx", cq->cidx))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "cidx_inc", cq->cidx_inc))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "sw_cidx", cq->sw_cidx))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "sw_pidx", cq->sw_pidx))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "sw_in_use", cq->sw_in_use))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "vector", cq->vector))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "gen", cq->gen))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "error", cq->error))
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goto err;
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if (rdma_nl_put_driver_u64_hex(msg, "bits_type_ts",
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be64_to_cpu(cq->bits_type_ts)))
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goto err;
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if (rdma_nl_put_driver_u64_hex(msg, "flags", cq->flags))
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goto err;
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return 0;
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err:
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return -EMSGSIZE;
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}
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static int fill_cqe(struct sk_buff *msg, struct t4_cqe *cqe, u16 idx,
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const char *qstr)
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{
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if (rdma_nl_put_driver_u32(msg, qstr, idx))
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goto err;
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if (rdma_nl_put_driver_u32_hex(msg, "header",
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be32_to_cpu(cqe->header)))
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goto err;
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if (rdma_nl_put_driver_u32(msg, "len", be32_to_cpu(cqe->len)))
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goto err;
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if (rdma_nl_put_driver_u32_hex(msg, "wrid_hi",
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be32_to_cpu(cqe->u.gen.wrid_hi)))
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goto err;
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if (rdma_nl_put_driver_u32_hex(msg, "wrid_low",
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be32_to_cpu(cqe->u.gen.wrid_low)))
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goto err;
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if (rdma_nl_put_driver_u64_hex(msg, "bits_type_ts",
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be64_to_cpu(cqe->bits_type_ts)))
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goto err;
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return 0;
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err:
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return -EMSGSIZE;
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}
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static int fill_hwcqes(struct sk_buff *msg, struct t4_cq *cq,
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struct t4_cqe *cqes)
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{
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u16 idx;
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idx = (cq->cidx > 0) ? cq->cidx - 1 : cq->size - 1;
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if (fill_cqe(msg, cqes, idx, "hwcq_idx"))
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goto err;
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idx = cq->cidx;
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if (fill_cqe(msg, cqes + 1, idx, "hwcq_idx"))
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goto err;
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return 0;
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err:
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return -EMSGSIZE;
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}
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static int fill_swcqes(struct sk_buff *msg, struct t4_cq *cq,
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struct t4_cqe *cqes)
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{
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u16 idx;
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if (!cq->sw_in_use)
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return 0;
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idx = cq->sw_cidx;
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if (fill_cqe(msg, cqes, idx, "swcq_idx"))
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goto err;
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if (cq->sw_in_use == 1)
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goto out;
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idx = (cq->sw_pidx > 0) ? cq->sw_pidx - 1 : cq->size - 1;
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if (fill_cqe(msg, cqes + 1, idx, "swcq_idx"))
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goto err;
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out:
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return 0;
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err:
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return -EMSGSIZE;
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}
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int c4iw_fill_res_cq_entry(struct sk_buff *msg, struct ib_cq *ibcq)
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{
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struct c4iw_cq *chp = to_c4iw_cq(ibcq);
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struct nlattr *table_attr;
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struct t4_cqe hwcqes[2];
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struct t4_cqe swcqes[2];
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struct t4_cq cq;
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u16 idx;
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/* User cq state is not available, so don't dump user cqs */
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if (ibcq->uobject)
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return 0;
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table_attr = nla_nest_start_noflag(msg, RDMA_NLDEV_ATTR_DRIVER);
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if (!table_attr)
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goto err;
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/* Get a consistent snapshot */
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spin_lock_irq(&chp->lock);
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/* t4_cq struct */
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cq = chp->cq;
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/* get 2 hw cqes: cidx-1, and cidx */
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idx = (cq.cidx > 0) ? cq.cidx - 1 : cq.size - 1;
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hwcqes[0] = chp->cq.queue[idx];
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idx = cq.cidx;
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hwcqes[1] = chp->cq.queue[idx];
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/* get first and last sw cqes */
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if (cq.sw_in_use) {
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swcqes[0] = chp->cq.sw_queue[cq.sw_cidx];
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if (cq.sw_in_use > 1) {
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idx = (cq.sw_pidx > 0) ? cq.sw_pidx - 1 : cq.size - 1;
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swcqes[1] = chp->cq.sw_queue[idx];
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}
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}
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spin_unlock_irq(&chp->lock);
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if (fill_cq(msg, &cq))
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goto err_cancel_table;
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if (fill_swcqes(msg, &cq, swcqes))
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goto err_cancel_table;
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if (fill_hwcqes(msg, &cq, hwcqes))
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goto err_cancel_table;
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nla_nest_end(msg, table_attr);
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return 0;
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err_cancel_table:
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nla_nest_cancel(msg, table_attr);
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err:
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return -EMSGSIZE;
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}
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int c4iw_fill_res_mr_entry(struct sk_buff *msg, struct ib_mr *ibmr)
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{
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struct c4iw_mr *mhp = to_c4iw_mr(ibmr);
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struct c4iw_dev *dev = mhp->rhp;
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u32 stag = mhp->attr.stag;
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struct nlattr *table_attr;
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struct fw_ri_tpte tpte;
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int ret;
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if (!stag)
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return 0;
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table_attr = nla_nest_start_noflag(msg, RDMA_NLDEV_ATTR_DRIVER);
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if (!table_attr)
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goto err;
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ret = cxgb4_read_tpte(dev->rdev.lldi.ports[0], stag, (__be32 *)&tpte);
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if (ret) {
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dev_err(&dev->rdev.lldi.pdev->dev,
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"%s cxgb4_read_tpte err %d\n", __func__, ret);
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return 0;
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}
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if (rdma_nl_put_driver_u32_hex(msg, "idx", stag >> 8))
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goto err_cancel_table;
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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;
|
|
}
|