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Message-Id: <20200413142308.936946-6-leon@kernel.org>
Date: Mon, 13 Apr 2020 17:23:00 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Doug Ledford <dledford@...hat.com>,
Jason Gunthorpe <jgg@...lanox.com>
Cc: Leon Romanovsky <leonro@...lanox.com>, linux-rdma@...r.kernel.org,
netdev@...r.kernel.org, Saeed Mahameed <saeedm@...lanox.com>
Subject: [PATCH mlx5-next 05/13] net/mlx5: Open-code modify QP in the FPGA module
From: Leon Romanovsky <leonro@...lanox.com>
Remove dependency on qp.c from the FPGA by open coding
modify QP interface.
Reviewed-by: Saeed Mahameed <saeedm@...lanox.com>
Signed-off-by: Leon Romanovsky <leonro@...lanox.com>
---
.../ethernet/mellanox/mlx5/core/fpga/conn.c | 84 +++++++------------
1 file changed, 28 insertions(+), 56 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c b/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c
index 1d49894399af..b00d834d2dbf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c
@@ -657,30 +657,29 @@ static void mlx5_fpga_conn_destroy_qp(struct mlx5_fpga_conn *conn)
mlx5_wq_destroy(&conn->qp.wq_ctrl);
}
-static inline int mlx5_fpga_conn_reset_qp(struct mlx5_fpga_conn *conn)
+static int mlx5_fpga_conn_reset_qp(struct mlx5_fpga_conn *conn)
{
struct mlx5_core_dev *mdev = conn->fdev->mdev;
+ u32 in[MLX5_ST_SZ_DW(qp_2rst_in)] = {};
mlx5_fpga_dbg(conn->fdev, "Modifying QP %u to RST\n", conn->qp.mqp.qpn);
- return mlx5_core_qp_modify(mdev, MLX5_CMD_OP_2RST_QP, 0, NULL,
- &conn->qp.mqp);
+ MLX5_SET(qp_2rst_in, in, opcode, MLX5_CMD_OP_2RST_QP);
+ MLX5_SET(qp_2rst_in, in, qpn, conn->qp.mqp.qpn);
+
+ return mlx5_cmd_exec_in(mdev, qp_2rst, in);
}
-static inline int mlx5_fpga_conn_init_qp(struct mlx5_fpga_conn *conn)
+static int mlx5_fpga_conn_init_qp(struct mlx5_fpga_conn *conn)
{
+ u32 in[MLX5_ST_SZ_DW(rst2init_qp_in)] = {};
struct mlx5_fpga_device *fdev = conn->fdev;
struct mlx5_core_dev *mdev = fdev->mdev;
- u32 *qpc = NULL;
- int err;
+ u32 *qpc;
mlx5_fpga_dbg(conn->fdev, "Modifying QP %u to INIT\n", conn->qp.mqp.qpn);
- qpc = kzalloc(MLX5_ST_SZ_BYTES(qpc), GFP_KERNEL);
- if (!qpc) {
- err = -ENOMEM;
- goto out;
- }
+ qpc = MLX5_ADDR_OF(rst2init_qp_in, in, qpc);
MLX5_SET(qpc, qpc, st, MLX5_QP_ST_RC);
MLX5_SET(qpc, qpc, pm_state, MLX5_QP_PM_MIGRATED);
@@ -691,32 +690,22 @@ static inline int mlx5_fpga_conn_init_qp(struct mlx5_fpga_conn *conn)
MLX5_SET(qpc, qpc, cqn_rcv, conn->cq.mcq.cqn);
MLX5_SET64(qpc, qpc, dbr_addr, conn->qp.wq_ctrl.db.dma);
- err = mlx5_core_qp_modify(mdev, MLX5_CMD_OP_RST2INIT_QP, 0, qpc,
- &conn->qp.mqp);
- if (err) {
- mlx5_fpga_warn(fdev, "qp_modify RST2INIT failed: %d\n", err);
- goto out;
- }
+ MLX5_SET(rst2init_qp_in, in, opcode, MLX5_CMD_OP_RST2INIT_QP);
+ MLX5_SET(rst2init_qp_in, in, qpn, conn->qp.mqp.qpn);
-out:
- kfree(qpc);
- return err;
+ return mlx5_cmd_exec_in(mdev, rst2init_qp, in);
}
-static inline int mlx5_fpga_conn_rtr_qp(struct mlx5_fpga_conn *conn)
+static int mlx5_fpga_conn_rtr_qp(struct mlx5_fpga_conn *conn)
{
+ u32 in[MLX5_ST_SZ_DW(init2rtr_qp_in)] = {};
struct mlx5_fpga_device *fdev = conn->fdev;
struct mlx5_core_dev *mdev = fdev->mdev;
- u32 *qpc = NULL;
- int err;
+ u32 *qpc;
mlx5_fpga_dbg(conn->fdev, "QP RTR\n");
- qpc = kzalloc(MLX5_ST_SZ_BYTES(qpc), GFP_KERNEL);
- if (!qpc) {
- err = -ENOMEM;
- goto out;
- }
+ qpc = MLX5_ADDR_OF(init2rtr_qp_in, in, qpc);
MLX5_SET(qpc, qpc, mtu, MLX5_QPC_MTU_1K_BYTES);
MLX5_SET(qpc, qpc, log_msg_max, (u8)MLX5_CAP_GEN(mdev, log_max_msg));
@@ -736,33 +725,22 @@ static inline int mlx5_fpga_conn_rtr_qp(struct mlx5_fpga_conn *conn)
MLX5_ADDR_OF(fpga_qpc, conn->fpga_qpc, fpga_ip),
MLX5_FLD_SZ_BYTES(qpc, primary_address_path.rgid_rip));
- err = mlx5_core_qp_modify(mdev, MLX5_CMD_OP_INIT2RTR_QP, 0, qpc,
- &conn->qp.mqp);
- if (err) {
- mlx5_fpga_warn(fdev, "qp_modify RST2INIT failed: %d\n", err);
- goto out;
- }
+ MLX5_SET(init2rtr_qp_in, in, opcode, MLX5_CMD_OP_INIT2RTR_QP);
+ MLX5_SET(init2rtr_qp_in, in, qpn, conn->qp.mqp.qpn);
-out:
- kfree(qpc);
- return err;
+ return mlx5_cmd_exec_in(mdev, init2rtr_qp, in);
}
-static inline int mlx5_fpga_conn_rts_qp(struct mlx5_fpga_conn *conn)
+static int mlx5_fpga_conn_rts_qp(struct mlx5_fpga_conn *conn)
{
struct mlx5_fpga_device *fdev = conn->fdev;
+ u32 in[MLX5_ST_SZ_DW(rtr2rts_qp_in)] = {};
struct mlx5_core_dev *mdev = fdev->mdev;
- u32 *qpc = NULL;
- u32 opt_mask;
- int err;
+ u32 *qpc;
mlx5_fpga_dbg(conn->fdev, "QP RTS\n");
- qpc = kzalloc(MLX5_ST_SZ_BYTES(qpc), GFP_KERNEL);
- if (!qpc) {
- err = -ENOMEM;
- goto out;
- }
+ qpc = MLX5_ADDR_OF(rtr2rts_qp_in, in, qpc);
MLX5_SET(qpc, qpc, log_ack_req_freq, 8);
MLX5_SET(qpc, qpc, min_rnr_nak, 0x12);
@@ -772,17 +750,11 @@ static inline int mlx5_fpga_conn_rts_qp(struct mlx5_fpga_conn *conn)
MLX5_SET(qpc, qpc, retry_count, 7);
MLX5_SET(qpc, qpc, rnr_retry, 7); /* Infinite retry if RNR NACK */
- opt_mask = MLX5_QP_OPTPAR_RNR_TIMEOUT;
- err = mlx5_core_qp_modify(mdev, MLX5_CMD_OP_RTR2RTS_QP, opt_mask, qpc,
- &conn->qp.mqp);
- if (err) {
- mlx5_fpga_warn(fdev, "qp_modify RST2INIT failed: %d\n", err);
- goto out;
- }
+ MLX5_SET(rtr2rts_qp_in, in, opcode, MLX5_CMD_OP_RTR2RTS_QP);
+ MLX5_SET(rtr2rts_qp_in, in, qpn, conn->qp.mqp.qpn);
+ MLX5_SET(rtr2rts_qp_in, in, opt_param_mask, MLX5_QP_OPTPAR_RNR_TIMEOUT);
-out:
- kfree(qpc);
- return err;
+ return mlx5_cmd_exec_in(mdev, rtr2rts_qp, in);
}
static int mlx5_fpga_conn_connect(struct mlx5_fpga_conn *conn)
--
2.25.2
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