Add a table of important fields from the c4iw_cq* structures to the cq
resource tracking table. This is helpful in debugging.
Signed-off-by: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/hw/cxgb4/restrack.c | 163 +++++++++++++++++++++++++++++++++
1 file changed, 163 insertions(+)
diff --git a/drivers/infiniband/hw/cxgb4/restrack.c b/drivers/infiniband/hw/cxgb4/restrack.c
index 4a6fc1d8..de7eb16 100644
--- a/drivers/infiniband/hw/cxgb4/restrack.c
+++ b/drivers/infiniband/hw/cxgb4/restrack.c
@@ -314,7 +314,170 @@ static int fill_res_ep_entry(struct sk_buff *msg,
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;
+}
+
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,
};
--
1.8.3.1
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