From patchwork Sun Apr 11 12:29:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leon Romanovsky X-Patchwork-Id: 419873 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F3D42C43460 for ; Sun, 11 Apr 2021 12:29:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CE283610C8 for ; Sun, 11 Apr 2021 12:29:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235582AbhDKMaN (ORCPT ); Sun, 11 Apr 2021 08:30:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:51644 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235531AbhDKMaK (ORCPT ); Sun, 11 Apr 2021 08:30:10 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 240E860FF1; Sun, 11 Apr 2021 12:29:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1618144193; bh=GZMmqpPdvU+m4feeQJfbUdupGoTlvZ75j3aqd5osECA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FEyVJ2V94NroaRFhfkZ93Z7s1otjV4vyz+akH72zgb0uEOOIZ/3EjvPfh0UCTy13F 5Jo7KjSGnoTGnbbTpAW8yXpHM7rKzeYVMiBMN7Bt2cNtvN9M6GnVX1BT/n3KeDUuf3 GuQ6h6bdNWuWkLPoFqNFeIDgM0i55KYo4F+B7aLsruQePEa5fOP9cY9lwKA6zLZqfu OPTTsms37xwWr2i/WAGU6ac1iaB/8zkrxll8TEEhi61+PjTAi3PvBjwRmfYrhWc64r 4o6c2eDcykNw6wZ4uJO1dMLUGfqje7OaZRRW7ffnFuiZSiaBdjRJhvHZLM5A5HwKgR PU2MoFrHBPlNw== From: Leon Romanovsky To: Doug Ledford , Jason Gunthorpe Cc: Maor Gottlieb , linux-api@vger.kernel.org, linux-rdma@vger.kernel.org, netdev@vger.kernel.org, Saeed Mahameed , Yishai Hadas Subject: [PATCH rdma-next v1 5/7] RDMA/mlx5: Add support to MODIFY_MEMIC command Date: Sun, 11 Apr 2021 15:29:22 +0300 Message-Id: <20210411122924.60230-6-leon@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210411122924.60230-1-leon@kernel.org> References: <20210411122924.60230-1-leon@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Maor Gottlieb Add two functions to allocate and deallocate MEMIC operations by using the MODIFY_MEMIC command. Signed-off-by: Maor Gottlieb Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/mlx5/dm.c | 36 +++++++++++++++++++++++++++++++++ drivers/infiniband/hw/mlx5/dm.h | 2 ++ 2 files changed, 38 insertions(+) diff --git a/drivers/infiniband/hw/mlx5/dm.c b/drivers/infiniband/hw/mlx5/dm.c index 29eb5c9df3a4..a648554210f8 100644 --- a/drivers/infiniband/hw/mlx5/dm.c +++ b/drivers/infiniband/hw/mlx5/dm.c @@ -111,6 +111,42 @@ void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr, spin_unlock(&dm->lock); } +void mlx5_cmd_dealloc_memic_op(struct mlx5_dm *dm, phys_addr_t addr, + u8 operation) +{ + u32 in[MLX5_ST_SZ_DW(modify_memic_in)] = {}; + struct mlx5_core_dev *dev = dm->dev; + + MLX5_SET(modify_memic_in, in, opcode, MLX5_CMD_OP_MODIFY_MEMIC); + MLX5_SET(modify_memic_in, in, op_mod, MLX5_MODIFY_MEMIC_OP_MOD_DEALLOC); + MLX5_SET(modify_memic_in, in, memic_operation_type, operation); + MLX5_SET64(modify_memic_in, in, memic_start_addr, addr - dev->bar_addr); + + mlx5_cmd_exec_in(dev, modify_memic, in); +} + +static int mlx5_cmd_alloc_memic_op(struct mlx5_dm *dm, phys_addr_t addr, + u8 operation, phys_addr_t *op_addr) +{ + u32 out[MLX5_ST_SZ_DW(modify_memic_out)] = {}; + u32 in[MLX5_ST_SZ_DW(modify_memic_in)] = {}; + struct mlx5_core_dev *dev = dm->dev; + int err; + + MLX5_SET(modify_memic_in, in, opcode, MLX5_CMD_OP_MODIFY_MEMIC); + MLX5_SET(modify_memic_in, in, op_mod, MLX5_MODIFY_MEMIC_OP_MOD_ALLOC); + MLX5_SET(modify_memic_in, in, memic_operation_type, operation); + MLX5_SET64(modify_memic_in, in, memic_start_addr, addr - dev->bar_addr); + + err = mlx5_cmd_exec_inout(dev, modify_memic, in, out); + if (err) + return err; + + *op_addr = dev->bar_addr + + MLX5_GET64(modify_memic_out, out, memic_operation_addr); + return 0; +} + static int add_dm_mmap_entry(struct ib_ucontext *context, struct mlx5_ib_dm_memic *mdm, u64 address) { diff --git a/drivers/infiniband/hw/mlx5/dm.h b/drivers/infiniband/hw/mlx5/dm.h index 39e66b51264d..6857bbdb201c 100644 --- a/drivers/infiniband/hw/mlx5/dm.h +++ b/drivers/infiniband/hw/mlx5/dm.h @@ -49,5 +49,7 @@ struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev, struct uverbs_attr_bundle *attrs); void mlx5_cmd_dealloc_memic(struct mlx5_dm *dm, phys_addr_t addr, u64 length); +void mlx5_cmd_dealloc_memic_op(struct mlx5_dm *dm, phys_addr_t addr, + u8 operation); #endif /* _MLX5_IB_DM_H */