From eb49ab0c5f3d8e5efb696f100978bf966ecf6be3 Mon Sep 17 00:00:00 2001 From: Alex Vesker Date: Sun, 28 Aug 2016 12:25:53 +0300 Subject: [PATCH] IB/mlx5: Add port counter support for raw packet QP Counters weren't updated due to raw packet QPs' traffic since the counter-id was not associated with the QP. Added support for associating the q-counter-id with the raw packet QP. The attachment is done only when changing RQ raw packet QP state from RST to INIT in modify-RQ command. FW support is required for the above, without this support raw packet QP counters will not count. Signed-off-by: Alex Vesker Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford --- drivers/infiniband/hw/mlx5/qp.c | 40 ++++++++++++++++++++++++++++++++-------- 1 file changed, 32 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 7686ee8..b4dc71b 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -77,8 +77,15 @@ struct mlx5_wqe_eth_pad { u8 rsvd0[16]; }; +enum raw_qp_set_mask_map { + MLX5_RAW_QP_MOD_SET_RQ_Q_CTR_ID = 1UL << 0, +}; + struct mlx5_modify_raw_qp_param { u16 operation; + + u32 set_mask; /* raw_qp_set_mask_map */ + u8 rq_q_ctr_id; }; static void get_cqs(enum ib_qp_type qp_type, @@ -2369,8 +2376,9 @@ static int ib_mask_to_mlx5_opt(int ib_mask) return result; } -static int modify_raw_packet_qp_rq(struct mlx5_core_dev *dev, - struct mlx5_ib_rq *rq, int new_state) +static int modify_raw_packet_qp_rq(struct mlx5_ib_dev *dev, + struct mlx5_ib_rq *rq, int new_state, + const struct mlx5_modify_raw_qp_param *raw_qp_param) { void *in; void *rqc; @@ -2387,7 +2395,17 @@ static int modify_raw_packet_qp_rq(struct mlx5_core_dev *dev, rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx); MLX5_SET(rqc, rqc, state, new_state); - err = mlx5_core_modify_rq(dev, rq->base.mqp.qpn, in, inlen); + if (raw_qp_param->set_mask & MLX5_RAW_QP_MOD_SET_RQ_Q_CTR_ID) { + if (MLX5_CAP_GEN(dev->mdev, modify_rq_counter_set_id)) { + MLX5_SET64(modify_rq_in, in, modify_bitmask, + MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_MODIFY_RQ_COUNTER_SET_ID); + MLX5_SET(rqc, rqc, counter_set_id, raw_qp_param->rq_q_ctr_id); + } else + pr_info_once("%s: RAW PACKET QP counters are not supported on current FW\n", + dev->ib_dev.name); + } + + err = mlx5_core_modify_rq(dev->mdev, rq->base.mqp.qpn, in, inlen); if (err) goto out; @@ -2454,15 +2472,17 @@ static int modify_raw_packet_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp, case MLX5_CMD_OP_INIT2RTR_QP: case MLX5_CMD_OP_RTR2RTS_QP: case MLX5_CMD_OP_RTS2RTS_QP: - /* Nothing to do here... */ - return 0; + if (raw_qp_param->set_mask) + return -EINVAL; + else + return 0; default: WARN_ON(1); return -EINVAL; } if (qp->rq.wqe_cnt) { - err = modify_raw_packet_qp_rq(dev->mdev, rq, rq_state); + err = modify_raw_packet_qp_rq(dev, rq, rq_state, raw_qp_param); if (err) return err; } @@ -2520,6 +2540,7 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp, struct mlx5_ib_cq *send_cq, *recv_cq; struct mlx5_qp_context *context; struct mlx5_ib_pd *pd; + struct mlx5_ib_port *mibport = NULL; enum mlx5_qp_state mlx5_cur, mlx5_new; enum mlx5_qp_optpar optpar; int sqd_event; @@ -2660,8 +2681,7 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp, if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) { u8 port_num = (attr_mask & IB_QP_PORT ? attr->port_num : qp->port) - 1; - struct mlx5_ib_port *mibport = &dev->port[port_num]; - + mibport = &dev->port[port_num]; context->qp_counter_set_usr_page |= cpu_to_be32((u32)(mibport->q_cnt_id) << 24); } @@ -2700,6 +2720,10 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp, struct mlx5_modify_raw_qp_param raw_qp_param = {}; raw_qp_param.operation = op; + if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT) { + raw_qp_param.rq_q_ctr_id = mibport->q_cnt_id; + raw_qp_param.set_mask |= MLX5_RAW_QP_MOD_SET_RQ_Q_CTR_ID; + } err = modify_raw_packet_qp(dev, qp, &raw_qp_param); } else { err = mlx5_core_qp_modify(dev->mdev, op, optpar, context, -- 2.7.4