Merge branch 'mlx5-next'

Eli Cohen says:

====================
mlx5 batch of patches for net-next

This series contains small fixes to the mlx5 core driver and also
preparation steps towards adding Ethernet support for ConnectX4
devices which will be part of mlx5 driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/infiniband/hw/mlx5/ah.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

drivers/infiniband/hw/mlx5/cq.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -572,11 +572,15 @@ int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
 
 int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
 {
+	struct mlx5_core_dev *mdev = to_mdev(ibcq->device)->mdev;
+	void __iomem *uar_page = mdev->priv.uuari.uars[0].map;
+
 	mlx5_cq_arm(&to_mcq(ibcq)->mcq,
 		    (flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED ?
 		    MLX5_CQ_DB_REQ_NOT_SOL : MLX5_CQ_DB_REQ_NOT,
-		    to_mdev(ibcq->device)->mdev->priv.uuari.uars[0].map,
-		    MLX5_GET_DOORBELL_LOCK(&to_mdev(ibcq->device)->mdev->priv.cq_uar_lock));
+		    uar_page,
+		    MLX5_GET_DOORBELL_LOCK(&mdev->priv.cq_uar_lock),
+		    to_mcq(ibcq)->mcq.cons_index);
 
 	return 0;
 }
@@ -697,8 +701,6 @@ static int create_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
 
 	cq->mcq.set_ci_db  = cq->db.db;
 	cq->mcq.arm_db     = cq->db.db + 1;
-	*cq->mcq.set_ci_db = 0;
-	*cq->mcq.arm_db    = 0;
 	cq->mcq.cqe_sz = cqe_size;
 
 	err = alloc_cq_buf(dev, &cq->buf, entries, cqe_size);
@@ -782,7 +784,7 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, int entries,
 	cq->cqe_size = cqe_size;
 	cqb->ctx.cqe_sz_flags = cqe_sz_to_mlx_sz(cqe_size) << 5;
 	cqb->ctx.log_sz_usr_page = cpu_to_be32((ilog2(entries) << 24) | index);
-	err = mlx5_vector2eqn(dev, vector, &eqn, &irqn);
+	err = mlx5_vector2eqn(dev->mdev, vector, &eqn, &irqn);
 	if (err)
 		goto err_cqb;
 

drivers/infiniband/hw/mlx5/doorbell.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

drivers/infiniband/hw/mlx5/mad.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

drivers/infiniband/hw/mlx5/main.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -62,95 +62,6 @@ static char mlx5_version[] =
 	DRIVER_NAME ": Mellanox Connect-IB Infiniband driver v"
 	DRIVER_VERSION " (" DRIVER_RELDATE ")\n";
 
-int mlx5_vector2eqn(struct mlx5_ib_dev *dev, int vector, int *eqn, int *irqn)
-{
-	struct mlx5_eq_table *table = &dev->mdev->priv.eq_table;
-	struct mlx5_eq *eq, *n;
-	int err = -ENOENT;
-
-	spin_lock(&table->lock);
-	list_for_each_entry_safe(eq, n, &dev->eqs_list, list) {
-		if (eq->index == vector) {
-			*eqn = eq->eqn;
-			*irqn = eq->irqn;
-			err = 0;
-			break;
-		}
-	}
-	spin_unlock(&table->lock);
-
-	return err;
-}
-
-static int alloc_comp_eqs(struct mlx5_ib_dev *dev)
-{
-	struct mlx5_eq_table *table = &dev->mdev->priv.eq_table;
-	char name[MLX5_MAX_EQ_NAME];
-	struct mlx5_eq *eq, *n;
-	int ncomp_vec;
-	int nent;
-	int err;
-	int i;
-
-	INIT_LIST_HEAD(&dev->eqs_list);
-	ncomp_vec = table->num_comp_vectors;
-	nent = MLX5_COMP_EQ_SIZE;
-	for (i = 0; i < ncomp_vec; i++) {
-		eq = kzalloc(sizeof(*eq), GFP_KERNEL);
-		if (!eq) {
-			err = -ENOMEM;
-			goto clean;
-		}
-
-		snprintf(name, MLX5_MAX_EQ_NAME, "mlx5_comp%d", i);
-		err = mlx5_create_map_eq(dev->mdev, eq,
-					 i + MLX5_EQ_VEC_COMP_BASE, nent, 0,
-					 name, &dev->mdev->priv.uuari.uars[0]);
-		if (err) {
-			kfree(eq);
-			goto clean;
-		}
-		mlx5_ib_dbg(dev, "allocated completion EQN %d\n", eq->eqn);
-		eq->index = i;
-		spin_lock(&table->lock);
-		list_add_tail(&eq->list, &dev->eqs_list);
-		spin_unlock(&table->lock);
-	}
-
-	dev->num_comp_vectors = ncomp_vec;
-	return 0;
-
-clean:
-	spin_lock(&table->lock);
-	list_for_each_entry_safe(eq, n, &dev->eqs_list, list) {
-		list_del(&eq->list);
-		spin_unlock(&table->lock);
-		if (mlx5_destroy_unmap_eq(dev->mdev, eq))
-			mlx5_ib_warn(dev, "failed to destroy EQ 0x%x\n", eq->eqn);
-		kfree(eq);
-		spin_lock(&table->lock);
-	}
-	spin_unlock(&table->lock);
-	return err;
-}
-
-static void free_comp_eqs(struct mlx5_ib_dev *dev)
-{
-	struct mlx5_eq_table *table = &dev->mdev->priv.eq_table;
-	struct mlx5_eq *eq, *n;
-
-	spin_lock(&table->lock);
-	list_for_each_entry_safe(eq, n, &dev->eqs_list, list) {
-		list_del(&eq->list);
-		spin_unlock(&table->lock);
-		if (mlx5_destroy_unmap_eq(dev->mdev, eq))
-			mlx5_ib_warn(dev, "failed to destroy EQ 0x%x\n", eq->eqn);
-		kfree(eq);
-		spin_lock(&table->lock);
-	}
-	spin_unlock(&table->lock);
-}
-
 static int mlx5_ib_query_device(struct ib_device *ibdev,
 				struct ib_device_attr *props)
 {
@@ -1291,10 +1202,6 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
 
 	get_ext_port_caps(dev);
 
-	err = alloc_comp_eqs(dev);
-	if (err)
-		goto err_dealloc;
-
 	MLX5_INIT_DOORBELL_LOCK(&dev->uar_lock);
 
 	strlcpy(dev->ib_dev.name, "mlx5_%d", IB_DEVICE_NAME_MAX);
@@ -1303,7 +1210,8 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
 	dev->ib_dev.local_dma_lkey	= mdev->caps.gen.reserved_lkey;
 	dev->num_ports		= mdev->caps.gen.num_ports;
 	dev->ib_dev.phys_port_cnt     = dev->num_ports;
-	dev->ib_dev.num_comp_vectors	= dev->num_comp_vectors;
+	dev->ib_dev.num_comp_vectors    =
+		dev->mdev->priv.eq_table.num_comp_vectors;
 	dev->ib_dev.dma_device	= &mdev->pdev->dev;
 
 	dev->ib_dev.uverbs_abi_ver	= MLX5_IB_UVERBS_ABI_VERSION;
@@ -1390,13 +1298,13 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
 
 	err = init_node_data(dev);
 	if (err)
-		goto err_eqs;
+		goto err_dealloc;
 
 	mutex_init(&dev->cap_mask_mutex);
 
 	err = create_dev_resources(&dev->devr);
 	if (err)
-		goto err_eqs;
+		goto err_dealloc;
 
 	err = mlx5_ib_odp_init_one(dev);
 	if (err)
@@ -1433,9 +1341,6 @@ err_odp:
 err_rsrc:
 	destroy_dev_resources(&dev->devr);
 
-err_eqs:
-	free_comp_eqs(dev);
-
 err_dealloc:
 	ib_dealloc_device((struct ib_device *)dev);
 
@@ -1450,7 +1355,6 @@ static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context)
 	destroy_umrc_res(dev);
 	mlx5_ib_odp_remove_one(dev);
 	destroy_dev_resources(&dev->devr);
-	free_comp_eqs(dev);
 	ib_dealloc_device(&dev->ib_dev);
 }
 
@@ -1458,6 +1362,7 @@ static struct mlx5_interface mlx5_ib_interface = {
 	.add            = mlx5_ib_add,
 	.remove         = mlx5_ib_remove,
 	.event          = mlx5_ib_event,
+	.protocol	= MLX5_INTERFACE_PROTOCOL_IB,
 };
 
 static int __init mlx5_ib_init(void)

drivers/infiniband/hw/mlx5/mem.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

drivers/infiniband/hw/mlx5/mlx5_ib.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -421,9 +421,7 @@ struct mlx5_ib_dev {
 	struct ib_device		ib_dev;
 	struct mlx5_core_dev		*mdev;
 	MLX5_DECLARE_DOORBELL_LOCK(uar_lock);
-	struct list_head		eqs_list;
 	int				num_ports;
-	int				num_comp_vectors;
 	/* serialize update of capability mask
 	 */
 	struct mutex			cap_mask_mutex;
@@ -594,7 +592,6 @@ struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev,
 					  struct ib_ucontext *context,
 					  struct ib_udata *udata);
 int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd);
-int mlx5_vector2eqn(struct mlx5_ib_dev *dev, int vector, int *eqn, int *irqn);
 int mlx5_ib_get_buf_offset(u64 addr, int page_shift, u32 *offset);
 int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port);
 int mlx5_ib_query_port(struct ib_device *ibdev, u8 port,

drivers/infiniband/hw/mlx5/mr.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

drivers/infiniband/hw/mlx5/odp.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

drivers/infiniband/hw/mlx5/qp.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -796,9 +796,6 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev,
 		goto err_free;
 	}
 
-	qp->db.db[0] = 0;
-	qp->db.db[1] = 0;
-
 	qp->sq.wrid = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wrid), GFP_KERNEL);
 	qp->sq.wr_data = kmalloc(qp->sq.wqe_cnt * sizeof(*qp->sq.wr_data), GFP_KERNEL);
 	qp->rq.wrid = kmalloc(qp->rq.wqe_cnt * sizeof(*qp->rq.wrid), GFP_KERNEL);
@@ -1162,10 +1159,11 @@ static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp)
 	in = kzalloc(sizeof(*in), GFP_KERNEL);
 	if (!in)
 		return;
+
 	if (qp->state != IB_QPS_RESET) {
 		mlx5_ib_qp_disable_pagefaults(qp);
 		if (mlx5_core_qp_modify(dev->mdev, to_mlx5_state(qp->state),
-					MLX5_QP_STATE_RST, in, sizeof(*in), &qp->mqp))
+					MLX5_QP_STATE_RST, in, 0, &qp->mqp))
 			mlx5_ib_warn(dev, "mlx5_ib: modify QP %06x to RESET failed\n",
 				     qp->mqp.qpn);
 	}

drivers/infiniband/hw/mlx5/srq.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -165,8 +165,6 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq,
 		return err;
 	}
 
-	*srq->db.db = 0;
-
 	if (mlx5_buf_alloc(dev->mdev, buf_size, PAGE_SIZE * 2, &srq->buf)) {
 		mlx5_ib_dbg(dev, "buf alloc failed\n");
 		err = -ENOMEM;

drivers/infiniband/hw/mlx5/user.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -171,6 +171,9 @@ static int mlx5_alloc_db_from_pgdir(struct mlx5_db_pgdir *pgdir,
 	db->db      = pgdir->db_page + offset / sizeof(*pgdir->db_page);
 	db->dma     = pgdir->db_dma  + offset;
 
+	db->db[0] = 0;
+	db->db[1] = 0;
+
 	return 0;
 }
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -125,7 +125,10 @@ static u8 alloc_token(struct mlx5_cmd *cmd)
 	u8 token;
 
 	spin_lock(&cmd->token_lock);
-	token = cmd->token++ % 255 + 1;
+	cmd->token++;
+	if (cmd->token == 0)
+		cmd->token++;
+	token = cmd->token;
 	spin_unlock(&cmd->token_lock);
 
 	return token;
@@ -515,10 +518,11 @@ static void cmd_work_handler(struct work_struct *work)
 	ent->ts1 = ktime_get_ns();
 
 	/* ring doorbell after the descriptor is valid */
+	mlx5_core_dbg(dev, "writing 0x%x to command doorbell\n", 1 << ent->idx);
 	wmb();
 	iowrite32be(1 << ent->idx, &dev->iseg->cmd_dbell);
-	mlx5_core_dbg(dev, "write 0x%x to command doorbell\n", 1 << ent->idx);
 	mmiowb();
+	/* if not in polling don't use ent after this point */
 	if (cmd->mode == CMD_MODE_POLLING) {
 		poll_timeout(ent);
 		/* make sure we read the descriptor after ownership is SW */
@@ -1236,7 +1240,8 @@ static int cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
 		goto out_out;
 	}
 
-	err = mlx5_copy_from_msg(out, outb, out_size);
+	if (!callback)
+		err = mlx5_copy_from_msg(out, outb, out_size);
 
 out_out:
 	if (!callback)
@@ -1319,6 +1324,45 @@ ex_err:
 	return err;
 }
 
+static int alloc_cmd_page(struct mlx5_core_dev *dev, struct mlx5_cmd *cmd)
+{
+	struct device *ddev = &dev->pdev->dev;
+
+	cmd->cmd_alloc_buf = dma_zalloc_coherent(ddev, MLX5_ADAPTER_PAGE_SIZE,
+						 &cmd->alloc_dma, GFP_KERNEL);
+	if (!cmd->cmd_alloc_buf)
+		return -ENOMEM;
+
+	/* make sure it is aligned to 4K */
+	if (!((uintptr_t)cmd->cmd_alloc_buf & (MLX5_ADAPTER_PAGE_SIZE - 1))) {
+		cmd->cmd_buf = cmd->cmd_alloc_buf;
+		cmd->dma = cmd->alloc_dma;
+		cmd->alloc_size = MLX5_ADAPTER_PAGE_SIZE;
+		return 0;
+	}
+
+	dma_free_coherent(ddev, MLX5_ADAPTER_PAGE_SIZE, cmd->cmd_alloc_buf,
+			  cmd->alloc_dma);
+	cmd->cmd_alloc_buf = dma_zalloc_coherent(ddev,
+						 2 * MLX5_ADAPTER_PAGE_SIZE - 1,
+						 &cmd->alloc_dma, GFP_KERNEL);
+	if (!cmd->cmd_alloc_buf)
+		return -ENOMEM;
+
+	cmd->cmd_buf = PTR_ALIGN(cmd->cmd_alloc_buf, MLX5_ADAPTER_PAGE_SIZE);
+	cmd->dma = ALIGN(cmd->alloc_dma, MLX5_ADAPTER_PAGE_SIZE);
+	cmd->alloc_size = 2 * MLX5_ADAPTER_PAGE_SIZE - 1;
+	return 0;
+}
+
+static void free_cmd_page(struct mlx5_core_dev *dev, struct mlx5_cmd *cmd)
+{
+	struct device *ddev = &dev->pdev->dev;
+
+	dma_free_coherent(ddev, cmd->alloc_size, cmd->cmd_alloc_buf,
+			  cmd->alloc_dma);
+}
+
 int mlx5_cmd_init(struct mlx5_core_dev *dev)
 {
 	int size = sizeof(struct mlx5_cmd_prot_block);
@@ -1341,17 +1385,9 @@ int mlx5_cmd_init(struct mlx5_core_dev *dev)
 	if (!cmd->pool)
 		return -ENOMEM;
 
-	cmd->cmd_buf = (void *)__get_free_pages(GFP_ATOMIC, 0);
-	if (!cmd->cmd_buf) {
-		err = -ENOMEM;
+	err = alloc_cmd_page(dev, cmd);
+	if (err)
 		goto err_free_pool;
-	}
-	cmd->dma = dma_map_single(&dev->pdev->dev, cmd->cmd_buf, PAGE_SIZE,
-				  DMA_BIDIRECTIONAL);
-	if (dma_mapping_error(&dev->pdev->dev, cmd->dma)) {
-		err = -ENOMEM;
-		goto err_free;
-	}
 
 	cmd_l = ioread32be(&dev->iseg->cmdq_addr_l_sz) & 0xff;
 	cmd->log_sz = cmd_l >> 4 & 0xf;
@@ -1360,13 +1396,13 @@ int mlx5_cmd_init(struct mlx5_core_dev *dev)
 		dev_err(&dev->pdev->dev, "firmware reports too many outstanding commands %d\n",
 			1 << cmd->log_sz);
 		err = -EINVAL;
-		goto err_map;
+		goto err_free_page;
 	}
 
 	if (cmd->log_sz + cmd->log_stride > MLX5_ADAPTER_PAGE_SHIFT) {
 		dev_err(&dev->pdev->dev, "command queue size overflow\n");
 		err = -EINVAL;
-		goto err_map;
+		goto err_free_page;
 	}
 
 	cmd->checksum_disabled = 1;
@@ -1378,7 +1414,7 @@ int mlx5_cmd_init(struct mlx5_core_dev *dev)
 		dev_err(&dev->pdev->dev, "driver does not support command interface version. driver %d, firmware %d\n",
 			CMD_IF_REV, cmd->cmdif_rev);
 		err = -ENOTSUPP;
-		goto err_map;
+		goto err_free_page;
 	}
 
 	spin_lock_init(&cmd->alloc_lock);
@@ -1394,7 +1430,7 @@ int mlx5_cmd_init(struct mlx5_core_dev *dev)
 	if (cmd_l & 0xfff) {
 		dev_err(&dev->pdev->dev, "invalid command queue address\n");
 		err = -ENOMEM;
-		goto err_map;
+		goto err_free_page;
 	}
 
 	iowrite32be(cmd_h, &dev->iseg->cmdq_addr_h);
@@ -1410,7 +1446,7 @@ int mlx5_cmd_init(struct mlx5_core_dev *dev)
 	err = create_msg_cache(dev);
 	if (err) {
 		dev_err(&dev->pdev->dev, "failed to create command cache\n");
-		goto err_map;
+		goto err_free_page;
 	}
 
 	set_wqname(dev);
@@ -1435,11 +1471,8 @@ err_wq:
 err_cache:
 	destroy_msg_cache(dev);
 
-err_map:
-	dma_unmap_single(&dev->pdev->dev, cmd->dma, PAGE_SIZE,
-			 DMA_BIDIRECTIONAL);
-err_free:
-	free_pages((unsigned long)cmd->cmd_buf, 0);
+err_free_page:
+	free_cmd_page(dev, cmd);
 
 err_free_pool:
 	pci_pool_destroy(cmd->pool);
@@ -1455,9 +1488,7 @@ void mlx5_cmd_cleanup(struct mlx5_core_dev *dev)
 	clean_debug_files(dev);
 	destroy_workqueue(cmd->wq);
 	destroy_msg_cache(dev);
-	dma_unmap_single(&dev->pdev->dev, cmd->dma, PAGE_SIZE,
-			 DMA_BIDIRECTIONAL);
-	free_pages((unsigned long)cmd->cmd_buf, 0);
+	free_cmd_page(dev, cmd);
 	pci_pool_destroy(cmd->pool);
 }
 EXPORT_SYMBOL(mlx5_cmd_cleanup);

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -48,11 +48,11 @@
 #include "mlx5_core.h"
 
 #define DRIVER_NAME "mlx5_core"
-#define DRIVER_VERSION "2.2-1"
-#define DRIVER_RELDATE	"Feb 2014"
+#define DRIVER_VERSION "3.0"
+#define DRIVER_RELDATE  "January 2015"
 
 MODULE_AUTHOR("Eli Cohen <eli@mellanox.com>");
-MODULE_DESCRIPTION("Mellanox ConnectX-IB HCA core library");
+MODULE_DESCRIPTION("Mellanox Connect-IB, ConnectX-4 core driver");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_VERSION(DRIVER_VERSION);
 
@@ -288,8 +288,6 @@ static void copy_rw_fields(void *to, struct mlx5_caps *from)
 	MLX5_SET(cmd_hca_cap, to, log_max_ra_req_qp, from->gen.log_max_ra_req_qp);
 	MLX5_SET(cmd_hca_cap, to, log_max_ra_res_qp, from->gen.log_max_ra_res_qp);
 	MLX5_SET(cmd_hca_cap, to, pkey_table_size, from->gen.pkey_table_size);
-	MLX5_SET(cmd_hca_cap, to, log_max_ra_req_dc, from->gen.log_max_ra_req_dc);
-	MLX5_SET(cmd_hca_cap, to, log_max_ra_res_dc, from->gen.log_max_ra_res_dc);
 	MLX5_SET(cmd_hca_cap, to, pkey_table_size, to_fw_pkey_sz(from->gen.pkey_table_size));
 	MLX5_SET(cmd_hca_cap, to, log_uar_page_sz, PAGE_SHIFT - 12);
 	v64 = from->gen.flags & MLX5_CAP_BITS_RW_MASK;
@@ -509,6 +507,87 @@ static int mlx5_core_disable_hca(struct mlx5_core_dev *dev)
 	return 0;
 }
 
+int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn, int *irqn)
+{
+	struct mlx5_eq_table *table = &dev->priv.eq_table;
+	struct mlx5_eq *eq, *n;
+	int err = -ENOENT;
+
+	spin_lock(&table->lock);
+	list_for_each_entry_safe(eq, n, &table->comp_eqs_list, list) {
+		if (eq->index == vector) {
+			*eqn = eq->eqn;
+			*irqn = eq->irqn;
+			err = 0;
+			break;
+		}
+	}
+	spin_unlock(&table->lock);
+
+	return err;
+}
+EXPORT_SYMBOL(mlx5_vector2eqn);
+
+static void free_comp_eqs(struct mlx5_core_dev *dev)
+{
+	struct mlx5_eq_table *table = &dev->priv.eq_table;
+	struct mlx5_eq *eq, *n;
+
+	spin_lock(&table->lock);
+	list_for_each_entry_safe(eq, n, &table->comp_eqs_list, list) {
+		list_del(&eq->list);
+		spin_unlock(&table->lock);
+		if (mlx5_destroy_unmap_eq(dev, eq))
+			mlx5_core_warn(dev, "failed to destroy EQ 0x%x\n",
+				       eq->eqn);
+		kfree(eq);
+		spin_lock(&table->lock);
+	}
+	spin_unlock(&table->lock);
+}
+
+static int alloc_comp_eqs(struct mlx5_core_dev *dev)
+{
+	struct mlx5_eq_table *table = &dev->priv.eq_table;
+	char name[MLX5_MAX_EQ_NAME];
+	struct mlx5_eq *eq;
+	int ncomp_vec;
+	int nent;
+	int err;
+	int i;
+
+	INIT_LIST_HEAD(&table->comp_eqs_list);
+	ncomp_vec = table->num_comp_vectors;
+	nent = MLX5_COMP_EQ_SIZE;
+	for (i = 0; i < ncomp_vec; i++) {
+		eq = kzalloc(sizeof(*eq), GFP_KERNEL);
+		if (!eq) {
+			err = -ENOMEM;
+			goto clean;
+		}
+
+		snprintf(name, MLX5_MAX_EQ_NAME, "mlx5_comp%d", i);
+		err = mlx5_create_map_eq(dev, eq,
+					 i + MLX5_EQ_VEC_COMP_BASE, nent, 0,
+					 name, &dev->priv.uuari.uars[0]);
+		if (err) {
+			kfree(eq);
+			goto clean;
+		}
+		mlx5_core_dbg(dev, "allocated completion EQN %d\n", eq->eqn);
+		eq->index = i;
+		spin_lock(&table->lock);
+		list_add_tail(&eq->list, &table->comp_eqs_list);
+		spin_unlock(&table->lock);
+	}
+
+	return 0;
+
+clean:
+	free_comp_eqs(dev);
+	return err;
+}
+
 static int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev)
 {
 	struct mlx5_priv *priv = &dev->priv;
@@ -645,6 +724,12 @@ static int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev)
 		goto err_free_uar;
 	}
 
+	err = alloc_comp_eqs(dev);
+	if (err) {
+		dev_err(&pdev->dev, "Failed to alloc completion EQs\n");
+		goto err_stop_eqs;
+	}
+
 	MLX5_INIT_DOORBELL_LOCK(&priv->cq_uar_lock);
 
 	mlx5_init_cq_table(dev);
@@ -654,6 +739,9 @@ static int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev)
 
 	return 0;
 
+err_stop_eqs:
+	mlx5_stop_eqs(dev);
+
 err_free_uar:
 	mlx5_free_uuars(dev, &priv->uuari);
 
@@ -705,6 +793,7 @@ static void mlx5_dev_cleanup(struct mlx5_core_dev *dev)
 	mlx5_cleanup_srq_table(dev);
 	mlx5_cleanup_qp_table(dev);
 	mlx5_cleanup_cq_table(dev);
+	free_comp_eqs(dev);
 	mlx5_stop_eqs(dev);
 	mlx5_free_uuars(dev, &priv->uuari);
 	mlx5_eq_cleanup(dev);
@@ -819,6 +908,28 @@ void mlx5_unregister_interface(struct mlx5_interface *intf)
 }
 EXPORT_SYMBOL(mlx5_unregister_interface);
 
+void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol)
+{
+	struct mlx5_priv *priv = &mdev->priv;
+	struct mlx5_device_context *dev_ctx;
+	unsigned long flags;
+	void *result = NULL;
+
+	spin_lock_irqsave(&priv->ctx_lock, flags);
+
+	list_for_each_entry(dev_ctx, &mdev->priv.ctx_list, list)
+		if ((dev_ctx->intf->protocol == protocol) &&
+		    dev_ctx->intf->get_dev) {
+			result = dev_ctx->intf->get_dev(dev_ctx->context);
+			break;
+		}
+
+	spin_unlock_irqrestore(&priv->ctx_lock, flags);
+
+	return result;
+}
+EXPORT_SYMBOL(mlx5_get_protocol_dev);
+
 static void mlx5_core_event(struct mlx5_core_dev *dev, enum mlx5_dev_event event,
 			    unsigned long param)
 {

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -141,7 +141,7 @@ EXPORT_SYMBOL(mlx5_core_destroy_mkey);
 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
 			 struct mlx5_query_mkey_mbox_out *out, int outlen)
 {
-	struct mlx5_destroy_mkey_mbox_in in;
+	struct mlx5_query_mkey_mbox_in in;
 	int err;
 
 	memset(&in, 0, sizeof(in));

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -243,8 +243,9 @@ static int alloc_system_page(struct mlx5_core_dev *dev, u16 func_id)
 	struct page *page;
 	u64 addr;
 	int err;
+	int nid = dev_to_node(&dev->pdev->dev);
 
-	page = alloc_page(GFP_HIGHUSER);
+	page = alloc_pages_node(nid, GFP_HIGHUSER, 0);
 	if (!page) {
 		mlx5_core_warn(dev, "failed to allocate page\n");
 		return -ENOMEM;

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

include/linux/mlx5/cmd.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

include/linux/mlx5/cq.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -137,14 +137,15 @@ enum {
 
 static inline void mlx5_cq_arm(struct mlx5_core_cq *cq, u32 cmd,
 			       void __iomem *uar_page,
-			       spinlock_t *doorbell_lock)
+			       spinlock_t *doorbell_lock,
+			       u32 cons_index)
 {
 	__be32 doorbell[2];
 	u32 sn;
 	u32 ci;
 
 	sn = cq->arm_sn & 3;
-	ci = cq->cons_index & 0xffffff;
+	ci = cons_index & 0xffffff;
 
 	*cq->arm_db = cpu_to_be32(sn << 28 | cmd | ci);
 

include/linux/mlx5/device.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

include/linux/mlx5/doorbell.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

include/linux/mlx5/driver.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -232,6 +232,9 @@ struct mlx5_cmd_stats {
 };
 
 struct mlx5_cmd {
+	void	       *cmd_alloc_buf;
+	dma_addr_t	alloc_dma;
+	int		alloc_size;
 	void	       *cmd_buf;
 	dma_addr_t	dma;
 	u16		cmdif_rev;
@@ -407,7 +410,7 @@ struct mlx5_core_srq {
 struct mlx5_eq_table {
 	void __iomem	       *update_ci;
 	void __iomem	       *update_arm_ci;
-	struct list_head       *comp_eq_head;
+	struct list_head	comp_eqs_list;
 	struct mlx5_eq		pages_eq;
 	struct mlx5_eq		async_eq;
 	struct mlx5_eq		cmd_eq;
@@ -722,6 +725,7 @@ int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
 int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
 int mlx5_start_eqs(struct mlx5_core_dev *dev);
 int mlx5_stop_eqs(struct mlx5_core_dev *dev);
+int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn, int *irqn);
 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
 
@@ -777,14 +781,22 @@ enum {
 	MAX_MR_CACHE_ENTRIES    = 16,
 };
 
+enum {
+	MLX5_INTERFACE_PROTOCOL_IB  = 0,
+	MLX5_INTERFACE_PROTOCOL_ETH = 1,
+};
+
 struct mlx5_interface {
 	void *			(*add)(struct mlx5_core_dev *dev);
 	void			(*remove)(struct mlx5_core_dev *dev, void *context);
 	void			(*event)(struct mlx5_core_dev *dev, void *context,
 					 enum mlx5_dev_event event, unsigned long param);
+	void *                  (*get_dev)(void *context);
+	int			protocol;
 	struct list_head	list;
 };
 
+void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol);
 int mlx5_register_interface(struct mlx5_interface *intf);
 void mlx5_unregister_interface(struct mlx5_interface *intf);
 

include/linux/mlx5/mlx5_ifc.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

include/linux/mlx5/qp.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU

include/linux/mlx5/srq.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Mellanox Technologies inc.  All rights reserved.
+ * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU