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RDMA/mlx5: Use flags_en mechanism to mark QP created with WQE signature

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MLX5_QP_FLAG_SIGNATURE is exposed to the users but in the kernel
the create_qp flow treated it differently from other MLX5_QP_FLAG_*s.
Fix it by ditching wq_sig boolean variable and use general flag_en
mechanism.

Link: https://lore.kernel.org/r/20200427154636.381474-16-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@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 2020-04-27 18:46:15 +03:00 committed by Jason Gunthorpe
parent 2978975ce7
commit c95e6d5397
3 changed files with 23 additions and 16 deletions
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1
drivers/infiniband/hw/mlx5/mlx5_ib.h
View File

@ -446,7 +446,6 @@ struct mlx5_ib_qp {
u32 flags;
u8 port;
u8 state;
int wq_sig;
int scat_cqe;
int max_inline_data;
struct mlx5_bf bf;

2
drivers/infiniband/hw/mlx5/odp.c
View File

@ -1190,7 +1190,7 @@ static int mlx5_ib_mr_responder_pfault_handler_rq(struct mlx5_ib_dev *dev,
struct mlx5_ib_wq *wq = &qp->rq;
int wqe_size = 1 << wq->wqe_shift;
if (qp->wq_sig) {
if (qp->flags_en & MLX5_QP_FLAG_SIGNATURE) {
mlx5_ib_err(dev, "ODP fault with WQE signatures is not supported\n");
return -EFAULT;
}

36
drivers/infiniband/hw/mlx5/qp.c
View File

@ -41,9 +41,6 @@
#include "cmd.h"
#include "qp.h"
/* not supported currently */
static int wq_signature;
enum {
MLX5_IB_ACK_REQ_FREQ = 8,
};
@ -392,17 +389,26 @@ static int set_rq_size(struct mlx5_ib_dev *dev, struct ib_qp_cap *cap,
cap->max_recv_wr = 0;
cap->max_recv_sge = 0;
} else {
int wq_sig = !!(qp->flags_en & MLX5_QP_FLAG_SIGNATURE);
if (ucmd) {
qp->rq.wqe_cnt = ucmd->rq_wqe_count;
if (ucmd->rq_wqe_shift > BITS_PER_BYTE * sizeof(ucmd->rq_wqe_shift))
return -EINVAL;
qp->rq.wqe_shift = ucmd->rq_wqe_shift;
if ((1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) < qp->wq_sig)
if ((1 << qp->rq.wqe_shift) /
sizeof(struct mlx5_wqe_data_seg) <
wq_sig)
return -EINVAL;
qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig;
qp->rq.max_gs =
(1 << qp->rq.wqe_shift) /
sizeof(struct mlx5_wqe_data_seg) -
wq_sig;
qp->rq.max_post = qp->rq.wqe_cnt;
} else {
wqe_size = qp->wq_sig ? sizeof(struct mlx5_wqe_signature_seg) : 0;
wqe_size =
wq_sig ? sizeof(struct mlx5_wqe_signature_seg) :
0;
wqe_size += cap->max_recv_sge * sizeof(struct mlx5_wqe_data_seg);
wqe_size = roundup_pow_of_two(wqe_size);
wq_size = roundup_pow_of_two(cap->max_recv_wr) * wqe_size;
@ -416,7 +422,10 @@ static int set_rq_size(struct mlx5_ib_dev *dev, struct ib_qp_cap *cap,
return -EINVAL;
}
qp->rq.wqe_shift = ilog2(wqe_size);
qp->rq.max_gs = (1 << qp->rq.wqe_shift) / sizeof(struct mlx5_wqe_data_seg) - qp->wq_sig;
qp->rq.max_gs =
(1 << qp->rq.wqe_shift) /
sizeof(struct mlx5_wqe_data_seg) -
wq_sig;
qp->rq.max_post = qp->rq.wqe_cnt;
}
}
@ -2008,7 +2017,8 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
if (err)
return err;
qp->wq_sig = !!(ucmd->flags & MLX5_QP_FLAG_SIGNATURE);
if (ucmd->flags & MLX5_QP_FLAG_SIGNATURE)
qp->flags_en |= MLX5_QP_FLAG_SIGNATURE;
if (MLX5_CAP_GEN(dev->mdev, sctr_data_cqe))
qp->scat_cqe =
!!(ucmd->flags & MLX5_QP_FLAG_SCATTER_CQE);
@ -2045,8 +2055,6 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
}
qp->flags_en |= MLX5_QP_FLAG_PACKET_BASED_CREDIT_MODE;
}
} else {
qp->wq_sig = !!wq_signature;
}
if (qp->flags & IB_QP_CREATE_SOURCE_QPN)
@ -2115,7 +2123,7 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
MLX5_SET(qpc, qpc, latency_sensitive, 1);
if (qp->wq_sig)
if (qp->flags_en & MLX5_QP_FLAG_SIGNATURE)
MLX5_SET(qpc, qpc, wq_signature, 1);
if (qp->flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK)
@ -4997,7 +5005,7 @@ static void finish_wqe(struct mlx5_ib_qp *qp,
mlx5_opcode | ((u32)opmod << 24));
ctrl->qpn_ds = cpu_to_be32(size | (qp->trans_qp.base.mqp.qpn << 8));
ctrl->fm_ce_se |= fence;
if (unlikely(qp->wq_sig))
if (unlikely(qp->flags_en & MLX5_QP_FLAG_SIGNATURE))
ctrl->signature = wq_sig(ctrl);
qp->sq.wrid[idx] = wr_id;
@ -5449,7 +5457,7 @@ static int _mlx5_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
}
scat = mlx5_frag_buf_get_wqe(&qp->rq.fbc, ind);
if (qp->wq_sig)
if (qp->flags_en & MLX5_QP_FLAG_SIGNATURE)
scat++;
for (i = 0; i < wr->num_sge; i++)
@ -5461,7 +5469,7 @@ static int _mlx5_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
scat[i].addr = 0;
}
if (qp->wq_sig) {
if (qp->flags_en & MLX5_QP_FLAG_SIGNATURE) {
sig = (struct mlx5_rwqe_sig *)scat;
set_sig_seg(sig, (qp->rq.max_gs + 1) << 2);
}