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| author | Leon Romanovsky <leonro@mellanox.com> | 2020-05-26 14:54:40 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-05-27 16:07:49 -0300 |
| commit | 50aec2c3135efd985291adc2e4d1278d52b03de9 (patch) | |
| tree | c65b39f6a91ccac55a7540f5840d0e0d57cd5980 /drivers/infiniband/hw/mlx5/qpc.c | |
| parent | 5f62a521ff20e0b47a8d33421334bd245d6714ff (diff) | |
| download | linux-50aec2c3135efd985291adc2e4d1278d52b03de9.tar.gz | |
RDMA/mlx5: Return ECE data after modify QP
After users sets the ECE option, FW will return the agreed/supported bits
through an output structures of modify QP stages for regular QPs or
through create QP for the DCT.
Link: https://lore.kernel.org/r/20200526115440.205922-9-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>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/qpc.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/qpc.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/qpc.c b/drivers/infiniband/hw/mlx5/qpc.c index d61bc1a88925..c19d91d6dce8 100644 --- a/drivers/infiniband/hw/mlx5/qpc.c +++ b/drivers/infiniband/hw/mlx5/qpc.c @@ -341,6 +341,27 @@ static void mbox_free(struct mbox_info *mbox) kfree(mbox->out); } +static int get_ece_from_mbox(void *out, u16 opcode) +{ + int ece = 0; + + switch (opcode) { + case MLX5_CMD_OP_INIT2RTR_QP: + ece = MLX5_GET(init2rtr_qp_out, out, ece); + break; + case MLX5_CMD_OP_RTR2RTS_QP: + ece = MLX5_GET(rtr2rts_qp_out, out, ece); + break; + case MLX5_CMD_OP_RTS2RTS_QP: + ece = MLX5_GET(rts2rts_qp_out, out, ece); + break; + default: + break; + } + + return ece; +} + static int modify_qp_mbox_alloc(struct mlx5_core_dev *dev, u16 opcode, int qpn, u32 opt_param_mask, void *qpc, struct mbox_info *mbox, u16 uid, u32 ece) @@ -438,6 +459,10 @@ int mlx5_core_qp_modify(struct mlx5_ib_dev *dev, u16 opcode, u32 opt_param_mask, err = mlx5_cmd_exec(dev->mdev, mbox.in, mbox.inlen, mbox.out, mbox.outlen); + + if (ece) + *ece = get_ece_from_mbox(mbox.out, opcode); + mbox_free(&mbox); return err; } |