From 4be90bc60df47f6268b594c4fb6c90f0ff2f519f Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Thu, 30 Jul 2015 17:22:16 -0600 Subject: [PATCH] IB/mad: Remove ib_get_dma_mr calls The pd now has a local_dma_lkey member which completely replaces ib_get_dma_mr, use it instead. Signed-off-by: Jason Gunthorpe Signed-off-by: Doug Ledford --- drivers/infiniband/core/mad.c | 26 +++----------------------- drivers/infiniband/core/mad_priv.h | 1 - include/rdma/ib_mad.h | 1 - 3 files changed, 3 insertions(+), 25 deletions(-) diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 66b4b3eb8f67..4b5c72311deb 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -338,13 +338,6 @@ struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device, goto error1; } - mad_agent_priv->agent.mr = ib_get_dma_mr(port_priv->qp_info[qpn].qp->pd, - IB_ACCESS_LOCAL_WRITE); - if (IS_ERR(mad_agent_priv->agent.mr)) { - ret = ERR_PTR(-ENOMEM); - goto error2; - } - if (mad_reg_req) { reg_req = kmemdup(mad_reg_req, sizeof *reg_req, GFP_KERNEL); if (!reg_req) { @@ -429,8 +422,6 @@ error4: spin_unlock_irqrestore(&port_priv->reg_lock, flags); kfree(reg_req); error3: - ib_dereg_mr(mad_agent_priv->agent.mr); -error2: kfree(mad_agent_priv); error1: return ret; @@ -590,7 +581,6 @@ static void unregister_mad_agent(struct ib_mad_agent_private *mad_agent_priv) wait_for_completion(&mad_agent_priv->comp); kfree(mad_agent_priv->reg_req); - ib_dereg_mr(mad_agent_priv->agent.mr); kfree(mad_agent_priv); } @@ -1038,7 +1028,7 @@ struct ib_mad_send_buf * ib_create_send_mad(struct ib_mad_agent *mad_agent, mad_send_wr->mad_agent_priv = mad_agent_priv; mad_send_wr->sg_list[0].length = hdr_len; - mad_send_wr->sg_list[0].lkey = mad_agent->mr->lkey; + mad_send_wr->sg_list[0].lkey = mad_agent->qp->pd->local_dma_lkey; /* OPA MADs don't have to be the full 2048 bytes */ if (opa && base_version == OPA_MGMT_BASE_VERSION && @@ -1047,7 +1037,7 @@ struct ib_mad_send_buf * ib_create_send_mad(struct ib_mad_agent *mad_agent, else mad_send_wr->sg_list[1].length = mad_size - hdr_len; - mad_send_wr->sg_list[1].lkey = mad_agent->mr->lkey; + mad_send_wr->sg_list[1].lkey = mad_agent->qp->pd->local_dma_lkey; mad_send_wr->send_wr.wr_id = (unsigned long) mad_send_wr; mad_send_wr->send_wr.sg_list = mad_send_wr->sg_list; @@ -2885,7 +2875,7 @@ static int ib_mad_post_receive_mads(struct ib_mad_qp_info *qp_info, struct ib_mad_queue *recv_queue = &qp_info->recv_queue; /* Initialize common scatter list fields */ - sg_list.lkey = (*qp_info->port_priv->mr).lkey; + sg_list.lkey = qp_info->port_priv->pd->local_dma_lkey; /* Initialize common receive WR fields */ recv_wr.next = NULL; @@ -3201,13 +3191,6 @@ static int ib_mad_port_open(struct ib_device *device, goto error4; } - port_priv->mr = ib_get_dma_mr(port_priv->pd, IB_ACCESS_LOCAL_WRITE); - if (IS_ERR(port_priv->mr)) { - dev_err(&device->dev, "Couldn't get ib_mad DMA MR\n"); - ret = PTR_ERR(port_priv->mr); - goto error5; - } - if (has_smi) { ret = create_mad_qp(&port_priv->qp_info[0], IB_QPT_SMI); if (ret) @@ -3248,8 +3231,6 @@ error8: error7: destroy_mad_qp(&port_priv->qp_info[0]); error6: - ib_dereg_mr(port_priv->mr); -error5: ib_dealloc_pd(port_priv->pd); error4: ib_destroy_cq(port_priv->cq); @@ -3284,7 +3265,6 @@ static int ib_mad_port_close(struct ib_device *device, int port_num) destroy_workqueue(port_priv->wq); destroy_mad_qp(&port_priv->qp_info[1]); destroy_mad_qp(&port_priv->qp_info[0]); - ib_dereg_mr(port_priv->mr); ib_dealloc_pd(port_priv->pd); ib_destroy_cq(port_priv->cq); cleanup_recv_queue(&port_priv->qp_info[1]); diff --git a/drivers/infiniband/core/mad_priv.h b/drivers/infiniband/core/mad_priv.h index 5be89f98928f..4a4f7aad0978 100644 --- a/drivers/infiniband/core/mad_priv.h +++ b/drivers/infiniband/core/mad_priv.h @@ -199,7 +199,6 @@ struct ib_mad_port_private { int port_num; struct ib_cq *cq; struct ib_pd *pd; - struct ib_mr *mr; spinlock_t reg_lock; struct ib_mad_mgmt_version_table version[MAX_MGMT_VERSION]; diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h index d5ac0229f5e7..c206205bbf98 100644 --- a/include/rdma/ib_mad.h +++ b/include/rdma/ib_mad.h @@ -526,7 +526,6 @@ enum { struct ib_mad_agent { struct ib_device *device; struct ib_qp *qp; - struct ib_mr *mr; ib_mad_recv_handler recv_handler; ib_mad_send_handler send_handler; ib_mad_snoop_handler snoop_handler;