[ewg] RAW ETH support for Mellanox v2 [PATCH 1/1]

Eli Cohen eli at dev.mellanox.co.il
Thu Jun 10 01:36:12 PDT 2010


Hi Aleksey,
please run checkpatch.pl and add a changelog.

On Thu, Jun 10, 2010 at 11:05:03AM +0300, Aleksey Senin wrote:
> Differences from V1
> Added new mlx4_mcast_prot enum
> Fix counters support
> 
> RAW_ETH support in Mellanox
> 
> 
> 
> Signed-off-by: Aleksey Senin <alekseys at voltaire.com>
> ---
>  drivers/infiniband/hw/mlx4/main.c |   13 +++++++++----
>  drivers/infiniband/hw/mlx4/qp.c   |   22 ++++++++++++++++++----
>  drivers/net/mlx4/mcg.c            |   22 +++++++++++++---------
>  include/linux/mlx4/device.h       |    7 +++++--
>  include/linux/mlx4/driver.h       |    5 +++++
>  5 files changed, 50 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
> index c146b84..43d0ccc 100644
> --- a/drivers/infiniband/hw/mlx4/main.c
> +++ b/drivers/infiniband/hw/mlx4/main.c
> @@ -684,7 +684,9 @@ static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
>  	struct mlx4_ib_qp *mqp = to_mqp(ibqp);
>  
>  	err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, !!(mqp->flags &
> -				    MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK));
> +				MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
> +				(ibqp->qp_type == IB_QPT_RAW_ETH) ?
> +				MLX4_MCAST_PROT_EN : MLX4_MCAST_PROT_IB);
>  	if (err)
>  		return err;
>  
> @@ -695,7 +697,9 @@ static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
>  	return 0;
>  
>  err_add:
> -	mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw);
> +	mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
> +				(ibqp->qp_type == IB_QPT_RAW_ETH) ?
> +				MLX4_MCAST_PROT_EN : MLX4_MCAST_PROT_IB);
>  	return err;
>  }
>  
> @@ -724,8 +728,9 @@ static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
>  	struct net_device *ndev;
>  	struct gid_entry *ge;
>  
> -	err = mlx4_multicast_detach(mdev->dev,
> -				    &mqp->mqp, gid->raw);
> +	err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
> +				(ibqp->qp_type == IB_QPT_RAW_ETH) ?
> +				MLX4_MCAST_PROT_EN : MLX4_MCAST_PROT_IB);
>  	if (err)
>  		return err;
>  
> diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
> index 422d367..c50e110 100644
> --- a/drivers/infiniband/hw/mlx4/qp.c
> +++ b/drivers/infiniband/hw/mlx4/qp.c
> @@ -811,6 +811,7 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
>  	case IB_QPT_RC:
>  	case IB_QPT_UC:
>  	case IB_QPT_UD:
> +	case IB_QPT_RAW_ETH:
>  	{
>  		qp = kzalloc(sizeof *qp, GFP_KERNEL);
>  		if (!qp)
> @@ -902,6 +903,7 @@ static int to_mlx4_st(enum ib_qp_type type)
>  	case IB_QPT_RAW_ETY:
>  	case IB_QPT_SMI:
>  	case IB_QPT_GSI:	return MLX4_QP_ST_MLX;
> +	case IB_QPT_RAW_ETH:	return MLX4_QP_ST_MLX;
>  	default:		return -1;
>  	}
>  }
> @@ -1064,8 +1066,9 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
>  			break;
>  		}
>  	}
> -
> -	if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI ||
> +	if (ibqp->qp_type == IB_QPT_RAW_ETH)
> +		context->mtu_msgmax = 0xff;
> +	else if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI ||
>  	    ibqp->qp_type == IB_QPT_RAW_ETY)
>  		context->mtu_msgmax = (IB_MTU_4096 << 5) | 11;
>  	else if (ibqp->qp_type == IB_QPT_UD) {
> @@ -1237,7 +1240,8 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
>  	if (cur_state == IB_QPS_INIT &&
>  	    new_state == IB_QPS_RTR  &&
>  	    (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI ||
> -	     ibqp->qp_type == IB_QPT_UD || ibqp->qp_type == IB_QPT_RAW_ETY)) {
> +	     ibqp->qp_type == IB_QPT_UD || ibqp->qp_type == IB_QPT_RAW_ETY ||
> +		ibqp->qp_type == IB_QPT_RAW_ETH)) {
>  		context->pri_path.sched_queue = (qp->port - 1) << 6;
>  		if (is_qp0(dev, qp))
>  			context->pri_path.sched_queue |= MLX4_IB_DEFAULT_QP0_SCHED_QUEUE;
> @@ -1356,7 +1360,7 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
>  		goto out;
>  	}
>  
> -	if ((attr_mask & IB_QP_PORT) &&
> +	if ((attr_mask & IB_QP_PORT) && (ibqp->qp_type != IB_QPT_RAW_ETH) &&
>  	    (attr->port_num == 0 || attr->port_num > dev->num_ports)) {
>  		mlx4_ib_dbg("qpn 0x%x: invalid port number (%d) specified "
>  			    "for transition %d to %d. qp_type %d",
> @@ -1365,6 +1369,16 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
>  		goto out;
>  	}
>  
> +	if ((attr_mask & IB_QP_PORT) && (ibqp->qp_type == IB_QPT_RAW_ETH) &&
> +		(rdma_port_link_layer(&dev->ib_dev, attr->port_num)
> +				!= IB_LINK_LAYER_ETHERNET)) {
> +		mlx4_ib_dbg("qpn 0x%x: invalid port (%d) specified (not RDMAoE)"
> +			    "for transition %d to %d. qp_type %d",
> +			    ibqp->qp_num, attr->port_num, cur_state,
> +			    new_state, ibqp->qp_type);
> +		goto out;
> +	}
> +
>  	if (attr_mask & IB_QP_PKEY_INDEX) {
>  		int p = attr_mask & IB_QP_PORT ? attr->port_num : qp->port;
>  		if (attr->pkey_index >= dev->dev->caps.pkey_table_len[p]) {
> diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c
> index 61c1e40..e52063f 100644
> --- a/drivers/net/mlx4/mcg.c
> +++ b/drivers/net/mlx4/mcg.c
> @@ -36,6 +36,7 @@
>  #include <linux/slab.h>
>  
>  #include <linux/mlx4/cmd.h>
> +#include <linux/mlx4/driver.h>
>  
>  #include "mlx4.h"
>  
> @@ -97,7 +98,8 @@ static int mlx4_MGID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox
>   * entry in hash chain and *mgm holds end of hash chain.
>   */
>  static int find_mgm(struct mlx4_dev *dev,
> -		    u8 *gid, struct mlx4_cmd_mailbox *mgm_mailbox,
> +		    u8 *gid, enum mlx4_mcast_prot prot,
> +		    struct mlx4_cmd_mailbox *mgm_mailbox,
>  		    u16 *hash, int *prev, int *index)
>  {
>  	struct mlx4_cmd_mailbox *mailbox;
> @@ -146,8 +148,9 @@ static int find_mgm(struct mlx4_dev *dev,
>  			return err;
>  		}
>  
> -		if (!memcmp(mgm->gid, gid, 16))
> -			return err;
> +		if (!memcmp(mgm->gid, gid, 16) &&
> +				(prot == be32_to_cpu(mgm->members_count) >> 30))
> +				return err;
>  
>  		*prev = *index;
>  		*index = be32_to_cpu(mgm->next_gid_index) >> 6;
> @@ -158,7 +161,7 @@ static int find_mgm(struct mlx4_dev *dev,
>  }
>  
>  int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
> -			  int block_mcast_loopback)
> +			  int block_mcast_loopback, enum mlx4_mcast_prot prot)
>  {
>  	struct mlx4_priv *priv = mlx4_priv(dev);
>  	struct mlx4_cmd_mailbox *mailbox;
> @@ -177,7 +180,7 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
>  
>  	mutex_lock(&priv->mcg_table.mutex);
>  
> -	err = find_mgm(dev, gid, mailbox, &hash, &prev, &index);
> +	err = find_mgm(dev, gid, prot, mailbox, &hash, &prev, &index);
>  	if (err)
>  		goto out;
>  
> @@ -216,7 +219,7 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
>  	mgm->qp[members_count++] = cpu_to_be32((qp->qpn & MGM_QPN_MASK) |
>  					       (!!mlx4_blck_lb << MGM_BLCK_LB_BIT));
>  
> -	mgm->members_count       = cpu_to_be32(members_count);
> +	mgm->members_count = cpu_to_be32(members_count | ((u32) prot << 30));
>  
>  	err = mlx4_WRITE_MCG(dev, index, mailbox);
>  	if (err)
> @@ -251,7 +254,8 @@ out:
>  }
>  EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
>  
> -int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16])
> +int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
> +						enum mlx4_mcast_prot prot)
>  {
>  	struct mlx4_priv *priv = mlx4_priv(dev);
>  	struct mlx4_cmd_mailbox *mailbox;
> @@ -269,7 +273,7 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16])
>  
>  	mutex_lock(&priv->mcg_table.mutex);
>  
> -	err = find_mgm(dev, gid, mailbox, &hash, &prev, &index);
> +	err = find_mgm(dev, gid, prot, mailbox, &hash, &prev, &index);
>  	if (err)
>  		goto out;
>  
> @@ -300,7 +304,7 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16])
>  	}
>  
>  
> -	mgm->members_count = cpu_to_be32(--members_count);
> +	mgm->members_count = cpu_to_be32(--members_count | ((u32) prot << 30));
>  	mgm->qp[loc]       = mgm->qp[i - 1];
>  	mgm->qp[i - 1]     = 0;
>  
> diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
> index 782a9b5..b57c0ac 100644
> --- a/include/linux/mlx4/device.h
> +++ b/include/linux/mlx4/device.h
> @@ -39,6 +39,8 @@
>  
>  #include <asm/atomic.h>
>  
> +#include <linux/mlx4/driver.h>
> +
>  enum {
>  	MLX4_FLAG_MSI_X		= 1 << 0,
>  	MLX4_FLAG_OLD_PORT_CMDS	= 1 << 1,
> @@ -561,8 +563,9 @@ int mlx4_INIT_PORT(struct mlx4_dev *dev, int port);
>  int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
>  
>  int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
> -			  int block_mcast_loopback);
> -int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
> +			  int block_mcast_loopback, enum mlx4_mcast_prot prot);
> +int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
> +				enum mlx4_mcast_prot prot);
>  
>  int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index);
>  void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int index);
> diff --git a/include/linux/mlx4/driver.h b/include/linux/mlx4/driver.h
> index 94c9617..292e20b 100644
> --- a/include/linux/mlx4/driver.h
> +++ b/include/linux/mlx4/driver.h
> @@ -54,6 +54,11 @@ enum mlx4_prot {
>  	MLX4_PROT_EN,
>  };
>  
> +enum mlx4_mcast_prot {
> +	MLX4_MCAST_PROT_IB = 0,
> +	MLX4_MCAST_PROT_EN = 1,
> +};
> +
>  struct mlx4_interface {
>  	void *			(*add)	 (struct mlx4_dev *dev);
>  	void			(*remove)(struct mlx4_dev *dev, void *context);
> -- 
> 1.6.5.2
> 
> 

> From 6e5725fd2168f6a6fd05c5ddf9f7e6f363552238 Mon Sep 17 00:00:00 2001
> From: Aleksey Senin <alekseys at voltaire.com>
> Date: Thu, 10 Jun 2010 11:00:25 +0300
> Subject: [PATCH] RAW_ETH support in Mellanox
> 
> 
> Signed-off-by: Aleksey Senin <alekseys at voltaire.com>
> ---
>  drivers/infiniband/hw/mlx4/main.c |   13 +++++++++----
>  drivers/infiniband/hw/mlx4/qp.c   |   22 ++++++++++++++++++----
>  drivers/net/mlx4/mcg.c            |   22 +++++++++++++---------
>  include/linux/mlx4/device.h       |    7 +++++--
>  include/linux/mlx4/driver.h       |    5 +++++
>  5 files changed, 50 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
> index c146b84..43d0ccc 100644
> --- a/drivers/infiniband/hw/mlx4/main.c
> +++ b/drivers/infiniband/hw/mlx4/main.c
> @@ -684,7 +684,9 @@ static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
>  	struct mlx4_ib_qp *mqp = to_mqp(ibqp);
>  
>  	err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, !!(mqp->flags &
> -				    MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK));
> +				MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
> +				(ibqp->qp_type == IB_QPT_RAW_ETH) ?
> +				MLX4_MCAST_PROT_EN : MLX4_MCAST_PROT_IB);
>  	if (err)
>  		return err;
>  
> @@ -695,7 +697,9 @@ static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
>  	return 0;
>  
>  err_add:
> -	mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw);
> +	mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
> +				(ibqp->qp_type == IB_QPT_RAW_ETH) ?
> +				MLX4_MCAST_PROT_EN : MLX4_MCAST_PROT_IB);
>  	return err;
>  }
>  
> @@ -724,8 +728,9 @@ static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
>  	struct net_device *ndev;
>  	struct gid_entry *ge;
>  
> -	err = mlx4_multicast_detach(mdev->dev,
> -				    &mqp->mqp, gid->raw);
> +	err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
> +				(ibqp->qp_type == IB_QPT_RAW_ETH) ?
> +				MLX4_MCAST_PROT_EN : MLX4_MCAST_PROT_IB);
>  	if (err)
>  		return err;
>  
> diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
> index 422d367..c50e110 100644
> --- a/drivers/infiniband/hw/mlx4/qp.c
> +++ b/drivers/infiniband/hw/mlx4/qp.c
> @@ -811,6 +811,7 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
>  	case IB_QPT_RC:
>  	case IB_QPT_UC:
>  	case IB_QPT_UD:
> +	case IB_QPT_RAW_ETH:
>  	{
>  		qp = kzalloc(sizeof *qp, GFP_KERNEL);
>  		if (!qp)
> @@ -902,6 +903,7 @@ static int to_mlx4_st(enum ib_qp_type type)
>  	case IB_QPT_RAW_ETY:
>  	case IB_QPT_SMI:
>  	case IB_QPT_GSI:	return MLX4_QP_ST_MLX;
> +	case IB_QPT_RAW_ETH:	return MLX4_QP_ST_MLX;
>  	default:		return -1;
>  	}
>  }
> @@ -1064,8 +1066,9 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
>  			break;
>  		}
>  	}
> -
> -	if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI ||
> +	if (ibqp->qp_type == IB_QPT_RAW_ETH)
> +		context->mtu_msgmax = 0xff;
> +	else if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI ||
>  	    ibqp->qp_type == IB_QPT_RAW_ETY)
>  		context->mtu_msgmax = (IB_MTU_4096 << 5) | 11;
>  	else if (ibqp->qp_type == IB_QPT_UD) {
> @@ -1237,7 +1240,8 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
>  	if (cur_state == IB_QPS_INIT &&
>  	    new_state == IB_QPS_RTR  &&
>  	    (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI ||
> -	     ibqp->qp_type == IB_QPT_UD || ibqp->qp_type == IB_QPT_RAW_ETY)) {
> +	     ibqp->qp_type == IB_QPT_UD || ibqp->qp_type == IB_QPT_RAW_ETY ||
> +		ibqp->qp_type == IB_QPT_RAW_ETH)) {
>  		context->pri_path.sched_queue = (qp->port - 1) << 6;
>  		if (is_qp0(dev, qp))
>  			context->pri_path.sched_queue |= MLX4_IB_DEFAULT_QP0_SCHED_QUEUE;
> @@ -1356,7 +1360,7 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
>  		goto out;
>  	}
>  
> -	if ((attr_mask & IB_QP_PORT) &&
> +	if ((attr_mask & IB_QP_PORT) && (ibqp->qp_type != IB_QPT_RAW_ETH) &&
>  	    (attr->port_num == 0 || attr->port_num > dev->num_ports)) {
>  		mlx4_ib_dbg("qpn 0x%x: invalid port number (%d) specified "
>  			    "for transition %d to %d. qp_type %d",
> @@ -1365,6 +1369,16 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
>  		goto out;
>  	}
>  
> +	if ((attr_mask & IB_QP_PORT) && (ibqp->qp_type == IB_QPT_RAW_ETH) &&
> +		(rdma_port_link_layer(&dev->ib_dev, attr->port_num)
> +				!= IB_LINK_LAYER_ETHERNET)) {
> +		mlx4_ib_dbg("qpn 0x%x: invalid port (%d) specified (not RDMAoE)"
> +			    "for transition %d to %d. qp_type %d",
> +			    ibqp->qp_num, attr->port_num, cur_state,
> +			    new_state, ibqp->qp_type);
> +		goto out;
> +	}
> +
>  	if (attr_mask & IB_QP_PKEY_INDEX) {
>  		int p = attr_mask & IB_QP_PORT ? attr->port_num : qp->port;
>  		if (attr->pkey_index >= dev->dev->caps.pkey_table_len[p]) {
> diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c
> index 61c1e40..e52063f 100644
> --- a/drivers/net/mlx4/mcg.c
> +++ b/drivers/net/mlx4/mcg.c
> @@ -36,6 +36,7 @@
>  #include <linux/slab.h>
>  
>  #include <linux/mlx4/cmd.h>
> +#include <linux/mlx4/driver.h>
>  
>  #include "mlx4.h"
>  
> @@ -97,7 +98,8 @@ static int mlx4_MGID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox
>   * entry in hash chain and *mgm holds end of hash chain.
>   */
>  static int find_mgm(struct mlx4_dev *dev,
> -		    u8 *gid, struct mlx4_cmd_mailbox *mgm_mailbox,
> +		    u8 *gid, enum mlx4_mcast_prot prot,
> +		    struct mlx4_cmd_mailbox *mgm_mailbox,
>  		    u16 *hash, int *prev, int *index)
>  {
>  	struct mlx4_cmd_mailbox *mailbox;
> @@ -146,8 +148,9 @@ static int find_mgm(struct mlx4_dev *dev,
>  			return err;
>  		}
>  
> -		if (!memcmp(mgm->gid, gid, 16))
> -			return err;
> +		if (!memcmp(mgm->gid, gid, 16) &&
> +				(prot == be32_to_cpu(mgm->members_count) >> 30))
> +				return err;
>  
>  		*prev = *index;
>  		*index = be32_to_cpu(mgm->next_gid_index) >> 6;
> @@ -158,7 +161,7 @@ static int find_mgm(struct mlx4_dev *dev,
>  }
>  
>  int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
> -			  int block_mcast_loopback)
> +			  int block_mcast_loopback, enum mlx4_mcast_prot prot)
>  {
>  	struct mlx4_priv *priv = mlx4_priv(dev);
>  	struct mlx4_cmd_mailbox *mailbox;
> @@ -177,7 +180,7 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
>  
>  	mutex_lock(&priv->mcg_table.mutex);
>  
> -	err = find_mgm(dev, gid, mailbox, &hash, &prev, &index);
> +	err = find_mgm(dev, gid, prot, mailbox, &hash, &prev, &index);
>  	if (err)
>  		goto out;
>  
> @@ -216,7 +219,7 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
>  	mgm->qp[members_count++] = cpu_to_be32((qp->qpn & MGM_QPN_MASK) |
>  					       (!!mlx4_blck_lb << MGM_BLCK_LB_BIT));
>  
> -	mgm->members_count       = cpu_to_be32(members_count);
> +	mgm->members_count = cpu_to_be32(members_count | ((u32) prot << 30));
>  
>  	err = mlx4_WRITE_MCG(dev, index, mailbox);
>  	if (err)
> @@ -251,7 +254,8 @@ out:
>  }
>  EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
>  
> -int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16])
> +int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
> +						enum mlx4_mcast_prot prot)
>  {
>  	struct mlx4_priv *priv = mlx4_priv(dev);
>  	struct mlx4_cmd_mailbox *mailbox;
> @@ -269,7 +273,7 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16])
>  
>  	mutex_lock(&priv->mcg_table.mutex);
>  
> -	err = find_mgm(dev, gid, mailbox, &hash, &prev, &index);
> +	err = find_mgm(dev, gid, prot, mailbox, &hash, &prev, &index);
>  	if (err)
>  		goto out;
>  
> @@ -300,7 +304,7 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16])
>  	}
>  
>  
> -	mgm->members_count = cpu_to_be32(--members_count);
> +	mgm->members_count = cpu_to_be32(--members_count | ((u32) prot << 30));
>  	mgm->qp[loc]       = mgm->qp[i - 1];
>  	mgm->qp[i - 1]     = 0;
>  
> diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
> index 782a9b5..b57c0ac 100644
> --- a/include/linux/mlx4/device.h
> +++ b/include/linux/mlx4/device.h
> @@ -39,6 +39,8 @@
>  
>  #include <asm/atomic.h>
>  
> +#include <linux/mlx4/driver.h>
> +
>  enum {
>  	MLX4_FLAG_MSI_X		= 1 << 0,
>  	MLX4_FLAG_OLD_PORT_CMDS	= 1 << 1,
> @@ -561,8 +563,9 @@ int mlx4_INIT_PORT(struct mlx4_dev *dev, int port);
>  int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);
>  
>  int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
> -			  int block_mcast_loopback);
> -int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
> +			  int block_mcast_loopback, enum mlx4_mcast_prot prot);
> +int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
> +				enum mlx4_mcast_prot prot);
>  
>  int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index);
>  void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int index);
> diff --git a/include/linux/mlx4/driver.h b/include/linux/mlx4/driver.h
> index 94c9617..292e20b 100644
> --- a/include/linux/mlx4/driver.h
> +++ b/include/linux/mlx4/driver.h
> @@ -54,6 +54,11 @@ enum mlx4_prot {
>  	MLX4_PROT_EN,
>  };
>  
> +enum mlx4_mcast_prot {
> +	MLX4_MCAST_PROT_IB = 0,
> +	MLX4_MCAST_PROT_EN = 1,
> +};
> +
>  struct mlx4_interface {
>  	void *			(*add)	 (struct mlx4_dev *dev);
>  	void			(*remove)(struct mlx4_dev *dev, void *context);
> -- 
> 1.6.5.2
> 

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