linux-kernel - [PATCH v12 6/8] mlx5: Replace PCI pool old API

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Message-Id: <20170822114701.14907-7-romain.perier@collabora.com>
Date:   Tue, 22 Aug 2017 13:46:59 +0200
From:   Romain Perier <romain.perier@...labora.com>
To:     Dan Williams <dan.j.williams@...el.com>,
        Doug Ledford <dledford@...hat.com>,
        Sean Hefty <sean.hefty@...el.com>,
        Hal Rosenstock <hal.rosenstock@...il.com>,
        jeffrey.t.kirsher@...el.com,
        "David S. Miller" <davem@...emloft.net>, stas.yakovlev@...il.com
Cc:     linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Romain Perier <romain.perier@...labora.com>
Subject: [PATCH v12 6/8] mlx5: Replace PCI pool old API

The PCI pool API is deprecated. This commit replaces the PCI pool old
API by the appropriate function with the DMA pool API.

Signed-off-by: Romain Perier <romain.perier@...labora.com>
Reviewed-by: Peter Senna Tschudin <peter.senna@...labora.com>
Acked-by: Doug Ledford <dledford@...hat.com>
Tested-by: Doug Ledford <dledford@...hat.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 11 ++++++-----
 include/linux/mlx5/driver.h                   |  2 +-
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index 0ef68a7c051e..1fffdebbc9e8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -1109,7 +1109,7 @@ static struct mlx5_cmd_mailbox *alloc_cmd_box(struct mlx5_core_dev *dev,
 	if (!mailbox)
 		return ERR_PTR(-ENOMEM);
 
-	mailbox->buf = pci_pool_zalloc(dev->cmd.pool, flags,
+	mailbox->buf = dma_pool_zalloc(dev->cmd.pool, flags,
 				       &mailbox->dma);
 	if (!mailbox->buf) {
 		mlx5_core_dbg(dev, "failed allocation\n");
@@ -1124,7 +1124,7 @@ static struct mlx5_cmd_mailbox *alloc_cmd_box(struct mlx5_core_dev *dev,
 static void free_cmd_box(struct mlx5_core_dev *dev,
 			 struct mlx5_cmd_mailbox *mailbox)
 {
-	pci_pool_free(dev->cmd.pool, mailbox->buf, mailbox->dma);
+	dma_pool_free(dev->cmd.pool, mailbox->buf, mailbox->dma);
 	kfree(mailbox);
 }
 
@@ -1775,7 +1775,8 @@ int mlx5_cmd_init(struct mlx5_core_dev *dev)
 		return -EINVAL;
 	}
 
-	cmd->pool = pci_pool_create("mlx5_cmd", dev->pdev, size, align, 0);
+	cmd->pool = dma_pool_create("mlx5_cmd", &dev->pdev->dev, size, align,
+				    0);
 	if (!cmd->pool)
 		return -ENOMEM;
 
@@ -1865,7 +1866,7 @@ int mlx5_cmd_init(struct mlx5_core_dev *dev)
 	free_cmd_page(dev, cmd);
 
 err_free_pool:
-	pci_pool_destroy(cmd->pool);
+	dma_pool_destroy(cmd->pool);
 
 	return err;
 }
@@ -1879,6 +1880,6 @@ void mlx5_cmd_cleanup(struct mlx5_core_dev *dev)
 	destroy_workqueue(cmd->wq);
 	destroy_msg_cache(dev);
 	free_cmd_page(dev, cmd);
-	pci_pool_destroy(cmd->pool);
+	dma_pool_destroy(cmd->pool);
 }
 EXPORT_SYMBOL(mlx5_cmd_cleanup);
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index ea89e32a0d5f..aa87f26f4d97 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -299,7 +299,7 @@ struct mlx5_cmd {
 	struct semaphore pages_sem;
 	int	mode;
 	struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
-	struct pci_pool *pool;
+	struct dma_pool *pool;
 	struct mlx5_cmd_debug dbg;
 	struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES];
 	int checksum_disabled;
-- 
2.11.0