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Commit 3bdb31f6 authored by Eli Cohen's avatar Eli Cohen Committed by Roland Dreier
Browse files

IB/mlx5: Implement modify CQ 



Modify CQ is used by ULPs like IPoIB to change moderation parameters.  This
patch adds support in mlx5.

Signed-off-by: default avatarEli Cohen <eli@mellanox.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent ada388f7

drivers/infiniband/hw/mlx5/cq.c

+25 −1
Original line number Diff line number Diff line
@@ -818,7 +818,31 @@ void mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq) 


int mlx5_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period)

{

	struct mlx5_modify_cq_mbox_in *in;

	struct mlx5_ib_dev *dev = to_mdev(cq->device);

	struct mlx5_ib_cq *mcq = to_mcq(cq);

	int err;

	u32 fsel;



	if (!(dev->mdev.caps.flags & MLX5_DEV_CAP_FLAG_CQ_MODER))

		return -ENOSYS;



	in = kzalloc(sizeof(*in), GFP_KERNEL);

	if (!in)

		return -ENOMEM;



	in->cqn = cpu_to_be32(mcq->mcq.cqn);

	fsel = (MLX5_CQ_MODIFY_PERIOD | MLX5_CQ_MODIFY_COUNT);

	in->ctx.cq_period = cpu_to_be16(cq_period);

	in->ctx.cq_max_count = cpu_to_be16(cq_count);

	in->field_select = cpu_to_be32(fsel);

	err = mlx5_core_modify_cq(&dev->mdev, &mcq->mcq, in);

	kfree(in);



	if (err)

		mlx5_ib_warn(dev, "modify cq 0x%x failed\n", mcq->mcq.cqn);



	return err;

}



int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)

drivers/net/ethernet/mellanox/mlx5/core/cq.c

+15 −2
Original line number Diff line number Diff line
@@ -201,10 +201,23 @@ EXPORT_SYMBOL(mlx5_core_query_cq); 




int mlx5_core_modify_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq,

			int type, struct mlx5_cq_modify_params *params)

			struct mlx5_modify_cq_mbox_in *in)

{

	return -ENOSYS;

	struct mlx5_modify_cq_mbox_out out;

	int err;



	memset(&out, 0, sizeof(out));

	in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_MODIFY_CQ);

	err = mlx5_cmd_exec(dev, in, sizeof(*in), &out, sizeof(out));

	if (err)

		return err;



	if (out.hdr.status)

		return mlx5_cmd_status_to_err(&out.hdr);



	return 0;

}

EXPORT_SYMBOL(mlx5_core_modify_cq);



int mlx5_init_cq_table(struct mlx5_core_dev *dev)

{

include/linux/mlx5/cq.h

+4 −4
Original line number Diff line number Diff line
@@ -85,9 +85,9 @@ enum { 
};



enum {

	MLX5_CQ_MODIFY_RESEIZE = 0,

	MLX5_CQ_MODIFY_MODER = 1,

	MLX5_CQ_MODIFY_MAPPING = 2,

	MLX5_CQ_MODIFY_PERIOD	= 1 << 0,

	MLX5_CQ_MODIFY_COUNT	= 1 << 1,

	MLX5_CQ_MODIFY_OVERRUN	= 1 << 2,

};



struct mlx5_cq_modify_params {
@@ -158,7 +158,7 @@ int mlx5_core_destroy_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq); 
int mlx5_core_query_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq,

		       struct mlx5_query_cq_mbox_out *out);

int mlx5_core_modify_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq,

			int type, struct mlx5_cq_modify_params *params);

			struct mlx5_modify_cq_mbox_in *in);

int mlx5_debug_cq_add(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq);

void mlx5_debug_cq_remove(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq);

include/linux/mlx5/device.h

+15 −0
Original line number Diff line number Diff line
@@ -177,6 +177,7 @@ enum { 
	MLX5_DEV_CAP_FLAG_APM		= 1LL << 17,

	MLX5_DEV_CAP_FLAG_ATOMIC	= 1LL << 18,

	MLX5_DEV_CAP_FLAG_ON_DMND_PG	= 1LL << 24,

	MLX5_DEV_CAP_FLAG_CQ_MODER	= 1LL << 29,

	MLX5_DEV_CAP_FLAG_RESIZE_SRQ	= 1LL << 32,

	MLX5_DEV_CAP_FLAG_REMOTE_FENCE	= 1LL << 38,

	MLX5_DEV_CAP_FLAG_TLP_HINTS	= 1LL << 39,
@@ -698,6 +699,19 @@ struct mlx5_query_cq_mbox_out { 
	__be64			pas[0];

};



struct mlx5_modify_cq_mbox_in {

	struct mlx5_inbox_hdr	hdr;

	__be32			cqn;

	__be32			field_select;

	struct mlx5_cq_context	ctx;

	u8			rsvd[192];

	__be64			pas[0];

};



struct mlx5_modify_cq_mbox_out {

	struct mlx5_outbox_hdr	hdr;

};



struct mlx5_enable_hca_mbox_in {

	struct mlx5_inbox_hdr	hdr;

	u8			rsvd[8];
@@ -872,6 +886,7 @@ struct mlx5_modify_mkey_mbox_in { 


struct mlx5_modify_mkey_mbox_out {

	struct mlx5_outbox_hdr	hdr;

	u8			rsvd[8];

};



struct mlx5_dump_mkey_mbox_in {