From 57a6c5e992f5d6ab92764a7eaaba855f6d4b2df8 Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Mon, 6 Apr 2020 15:53:06 +0300 Subject: [PATCH] net/mlx5: Replace hand written QP context struct with automatic getters By changing debugfs to not use any QP related API, convert the debugfs code to use MLX5_GET() directly to access QP context instead of hand written struct. Reviewed-by: Saeed Mahameed Signed-off-by: Leon Romanovsky --- drivers/net/ethernet/mellanox/mlx5/core/debugfs.c | 51 +++++++++-------------- 1 file changed, 20 insertions(+), 31 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c index 04854e5..d40c3d5 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c @@ -202,42 +202,37 @@ void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev) static u64 qp_read_field(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp, int index, int *is_str) { - int outlen = MLX5_ST_SZ_BYTES(query_qp_out); - struct mlx5_qp_context *ctx; + u32 out[MLX5_ST_SZ_BYTES(query_qp_out)] = {}; + u32 in[MLX5_ST_SZ_DW(query_qp_in)] = {}; u64 param = 0; - u32 *out; + int state; + u32 *qpc; int err; - int no_sq; - out = kzalloc(outlen, GFP_KERNEL); - if (!out) - return param; - - err = mlx5_core_qp_query(dev, qp, out, outlen); - if (err) { - mlx5_core_warn(dev, "failed to query qp err=%d\n", err); - goto out; - } + MLX5_SET(query_qp_in, in, opcode, MLX5_CMD_OP_QUERY_QP); + MLX5_SET(query_qp_in, in, qpn, qp->qpn); + err = mlx5_cmd_exec_inout(dev, query_qp, in, out); + if (err) + return 0; *is_str = 0; - /* FIXME: use MLX5_GET rather than mlx5_qp_context manual struct */ - ctx = (struct mlx5_qp_context *)MLX5_ADDR_OF(query_qp_out, out, qpc); - + qpc = MLX5_ADDR_OF(query_qp_out, out, qpc); switch (index) { case QP_PID: param = qp->pid; break; case QP_STATE: - param = (unsigned long)mlx5_qp_state_str(be32_to_cpu(ctx->flags) >> 28); + state = MLX5_GET(qpc, qpc, state); + param = (unsigned long)mlx5_qp_state_str(state); *is_str = 1; break; case QP_XPORT: - param = (unsigned long)mlx5_qp_type_str((be32_to_cpu(ctx->flags) >> 16) & 0xff); + param = (unsigned long)mlx5_qp_type_str(MLX5_GET(qpc, qpc, st)); *is_str = 1; break; case QP_MTU: - switch (ctx->mtu_msgmax >> 5) { + switch (MLX5_GET(qpc, qpc, mtu)) { case IB_MTU_256: param = 256; break; @@ -258,29 +253,23 @@ static u64 qp_read_field(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp, } break; case QP_N_RECV: - param = 1 << ((ctx->rq_size_stride >> 3) & 0xf); + param = 1 << MLX5_GET(qpc, qpc, log_rq_size); break; case QP_RECV_SZ: - param = 1 << ((ctx->rq_size_stride & 7) + 4); + param = 1 << (MLX5_GET(qpc, qpc, log_rq_stride) + 4); break; case QP_N_SEND: - no_sq = be16_to_cpu(ctx->sq_crq_size) >> 15; - if (!no_sq) - param = 1 << (be16_to_cpu(ctx->sq_crq_size) >> 11); - else - param = 0; + if (!MLX5_GET(qpc, qpc, no_sq)) + param = 1 << MLX5_GET(qpc, qpc, log_sq_size); break; case QP_LOG_PG_SZ: - param = (be32_to_cpu(ctx->log_pg_sz_remote_qpn) >> 24) & 0x1f; - param += 12; + param = MLX5_GET(qpc, qpc, log_page_size) + 12; break; case QP_RQPN: - param = be32_to_cpu(ctx->log_pg_sz_remote_qpn) & 0xffffff; + param = MLX5_GET(qpc, qpc, remote_qpn); break; } -out: - kfree(out); return param; } -- 2.7.4