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RDMA/mlx5: Get ECE options from FW during create QP

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Supported ECE options are returned from FW in the create_qp phase and zero
means that field is not valid. Such default value allows us to reuse
reserved field without worries about comp_mask.

Update create QP API to return ECE options.

Link: https://lore.kernel.org/r/20200526115440.205922-3-leon@kernel.org
Reviewed-by: Mark Zhang <markz@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Leon Romanovsky 2020-05-26 14:54:34 +03:00 committed by Jason Gunthorpe
parent 8094ba0ace
commit 3e09a427ae
4 changed files with 18 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/infiniband/hw/mlx5/qp.c
View File

@ -1842,6 +1842,7 @@ static int create_xrc_tgt_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
struct ib_qp_init_attr *attr = params->attr;
u32 uidx = params->uidx;
struct mlx5_ib_resources *devr = &dev->devr;
u32 out[MLX5_ST_SZ_DW(create_qp_out)] = {};
int inlen = MLX5_ST_SZ_BYTES(create_qp_in);
struct mlx5_core_dev *mdev = dev->mdev;
struct mlx5_ib_qp_base *base;
@ -1894,13 +1895,14 @@ static int create_xrc_tgt_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
}
base = &qp->trans_qp.base;
err = mlx5_core_create_qp(dev, &base->mqp, in, inlen);
err = mlx5_qpc_create_qp(dev, &base->mqp, in, inlen, out);
kvfree(in);
if (err)
return err;
base->container_mibqp = qp;
base->mqp.event = mlx5_ib_qp_event;
params->resp.ece_options = MLX5_GET(create_qp_out, out, ece);
spin_lock_irqsave(&dev->reset_flow_resource_lock, flags);
list_add_tail(&qp->qps_list, &dev->qp_list);
@ -1916,6 +1918,7 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
{
struct ib_qp_init_attr *init_attr = params->attr;
struct mlx5_ib_create_qp *ucmd = params->ucmd;
u32 out[MLX5_ST_SZ_DW(create_qp_out)] = {};
struct ib_udata *udata = params->udata;
u32 uidx = params->uidx;
struct mlx5_ib_resources *devr = &dev->devr;
@ -2065,7 +2068,7 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
err = create_raw_packet_qp(dev, qp, in, inlen, pd, udata,
&params->resp);
} else
err = mlx5_core_create_qp(dev, &base->mqp, in, inlen);
err = mlx5_qpc_create_qp(dev, &base->mqp, in, inlen, out);
kvfree(in);
if (err)
@ -2073,6 +2076,7 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
base->container_mibqp = qp;
base->mqp.event = mlx5_ib_qp_event;
params->resp.ece_options = MLX5_GET(create_qp_out, out, ece);
get_cqs(qp->type, init_attr->send_cq, init_attr->recv_cq,
&send_cq, &recv_cq);
@ -2105,6 +2109,7 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
struct ib_qp_init_attr *attr = params->attr;
u32 uidx = params->uidx;
struct mlx5_ib_resources *devr = &dev->devr;
u32 out[MLX5_ST_SZ_DW(create_qp_out)] = {};
int inlen = MLX5_ST_SZ_BYTES(create_qp_in);
struct mlx5_core_dev *mdev = dev->mdev;
struct mlx5_ib_cq *send_cq;
@ -2195,7 +2200,7 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
if (qp->flags & IB_QP_CREATE_IPOIB_UD_LSO)
MLX5_SET(qpc, qpc, ulp_stateless_offload_mode, 1);
err = mlx5_core_create_qp(dev, &base->mqp, in, inlen);
err = mlx5_qpc_create_qp(dev, &base->mqp, in, inlen, out);
kvfree(in);
if (err)
goto err_create;
@ -2779,12 +2784,13 @@ static int create_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
qp->ibqp.qp_num = qp->trans_qp.base.mqp.qpn;
mlx5_ib_dbg(dev,
"QP type %d, ib qpn 0x%X, mlx qpn 0x%x, rcqn 0x%x, scqn 0x%x\n",
"QP type %d, ib qpn 0x%X, mlx qpn 0x%x, rcqn 0x%x, scqn 0x%x, ece 0x%x\n",
qp->type, qp->ibqp.qp_num, qp->trans_qp.base.mqp.qpn,
params->attr->recv_cq ? to_mcq(params->attr->recv_cq)->mcq.cqn :
-1,
params->attr->send_cq ? to_mcq(params->attr->send_cq)->mcq.cqn :
-1);
-1,
params->resp.ece_options);
return 0;
}

4
drivers/infiniband/hw/mlx5/qp.h
View File

@ -13,8 +13,8 @@ void mlx5_cleanup_qp_table(struct mlx5_ib_dev *dev);
int mlx5_core_create_dct(struct mlx5_ib_dev *dev, struct mlx5_core_dct *qp,
u32 *in, int inlen, u32 *out, int outlen);
int mlx5_core_create_qp(struct mlx5_ib_dev *dev, struct mlx5_core_qp *qp,
u32 *in, int inlen);
int mlx5_qpc_create_qp(struct mlx5_ib_dev *dev, struct mlx5_core_qp *qp,
u32 *in, int inlen, u32 *out);
int mlx5_core_qp_modify(struct mlx5_ib_dev *dev, u16 opcode, u32 opt_param_mask,
void *qpc, struct mlx5_core_qp *qp);
int mlx5_core_destroy_qp(struct mlx5_ib_dev *dev, struct mlx5_core_qp *qp);

8
drivers/infiniband/hw/mlx5/qpc.c
View File

@ -236,16 +236,16 @@ int mlx5_core_create_dct(struct mlx5_ib_dev *dev, struct mlx5_core_dct *dct,
return err;
}
int mlx5_core_create_qp(struct mlx5_ib_dev *dev, struct mlx5_core_qp *qp,
u32 *in, int inlen)
int mlx5_qpc_create_qp(struct mlx5_ib_dev *dev, struct mlx5_core_qp *qp,
u32 *in, int inlen, u32 *out)
{
u32 out[MLX5_ST_SZ_DW(create_qp_out)] = {};
u32 din[MLX5_ST_SZ_DW(destroy_qp_in)] = {};
int err;
MLX5_SET(create_qp_in, in, opcode, MLX5_CMD_OP_CREATE_QP);
err = mlx5_cmd_exec(dev->mdev, in, inlen, out, sizeof(out));
err = mlx5_cmd_exec(dev->mdev, in, inlen, out,
MLX5_ST_SZ_BYTES(create_qp_out));
if (err)
return err;

2
include/uapi/rdma/mlx5-abi.h
View File

@ -371,7 +371,7 @@ enum mlx5_ib_create_qp_resp_mask {
struct mlx5_ib_create_qp_resp {
__u32 bfreg_index;
__u32 reserved;
__u32 ece_options;
__u32 comp_mask;
__u32 tirn;
__u32 tisn;