From patchwork Mon Sep 2 11:29:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cheng Xu X-Patchwork-Id: 13787105 Received: from out30-119.freemail.mail.aliyun.com (out30-119.freemail.mail.aliyun.com [115.124.30.119]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B41B6185929 for ; Mon, 2 Sep 2024 11:29:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.119 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725276569; cv=none; b=VJ1fLX5NG9yZ85X7Hi+TtIJIBd3yYcgK68y8aw9lC6eaCXYUE1M5Igz6AkVhrGyucB8bSQCOYzuIKsdxn8cYhrFh9+vNGjjRW4ckwyQH1PsCPZlL3Y5qdzsj/OUexPXJSRFWgZoKqlYtm/11p9Y7wwLeHj4cBl9p7dHurH/Y1GM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725276569; c=relaxed/simple; bh=s0DxE8h8OGBNCY7vZS45cPGYxqTQLMuAbgHJ00nEbFs=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=rzCnbgjJkqvLny9bjqVoTPntBM2hE1kGvsJK4a2zbLtvSW0tN4sjntRo1KsMtKd8N5tU5oD+l1YzilslW2CbiXdduUcJdD2wPBNL3jz67sfsAetgP3UnLRMNKODvNqtUBnHvXRSFah0B3n+8svALCHWGCia+R+eLKQJkko81/5Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=EXeUljFw; arc=none smtp.client-ip=115.124.30.119 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="EXeUljFw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1725276564; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=bNHhp7X30BpqVucBsjIGGXi/h3BZwn+TQJiyIlKaPUE=; b=EXeUljFwOoVSJ8+KlVRp//KJv7ckf4NRVQbC0WWt92AAwie9cvf21wcOsdd5bZVLhkV0aAkUW7OjttXYyGwPgS3BS+oNxLJssC36R7jbYmbusnNeQcRk7JZBEbFZFkKweHIK/oaTeE/CI7whaWmO5rK8JggT7p241nWVng7ZObk= Received: from localhost(mailfrom:chengyou@linux.alibaba.com fp:SMTPD_---0WE8Bdlz_1725276563) by smtp.aliyun-inc.com; Mon, 02 Sep 2024 19:29:23 +0800 From: Cheng Xu To: jgg@ziepe.ca, leon@kernel.org Cc: linux-rdma@vger.kernel.org, KaiShen@linux.alibaba.com Subject: [PATCH for-next v3 1/3] RDMA/erdma: Refactor the initialization and destruction of EQ Date: Mon, 2 Sep 2024 19:29:18 +0800 Message-Id: <20240902112920.58749-2-chengyou@linux.alibaba.com> X-Mailer: git-send-email 2.39.3 (Apple Git-146) In-Reply-To: <20240902112920.58749-1-chengyou@linux.alibaba.com> References: <20240902112920.58749-1-chengyou@linux.alibaba.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 We extracted the common parts of the initialization/destruction process to make the code cleaner. Signed-off-by: Cheng Xu --- drivers/infiniband/hw/erdma/erdma.h | 3 +- drivers/infiniband/hw/erdma/erdma_cmdq.c | 26 ++----- drivers/infiniband/hw/erdma/erdma_eq.c | 87 ++++++++++++------------ drivers/infiniband/hw/erdma/erdma_main.c | 4 +- 4 files changed, 51 insertions(+), 69 deletions(-) diff --git a/drivers/infiniband/hw/erdma/erdma.h b/drivers/infiniband/hw/erdma/erdma.h index c8bd698e21b0..3c166359448d 100644 --- a/drivers/infiniband/hw/erdma/erdma.h +++ b/drivers/infiniband/hw/erdma/erdma.h @@ -274,7 +274,8 @@ void notify_eq(struct erdma_eq *eq); void *get_next_valid_eqe(struct erdma_eq *eq); int erdma_aeq_init(struct erdma_dev *dev); -void erdma_aeq_destroy(struct erdma_dev *dev); +int erdma_eq_common_init(struct erdma_dev *dev, struct erdma_eq *eq, u32 depth); +void erdma_eq_destroy(struct erdma_dev *dev, struct erdma_eq *eq); void erdma_aeq_event_handler(struct erdma_dev *dev); void erdma_ceq_completion_handler(struct erdma_eq_cb *ceq_cb); diff --git a/drivers/infiniband/hw/erdma/erdma_cmdq.c b/drivers/infiniband/hw/erdma/erdma_cmdq.c index 43ff40b5a09d..a3d8922d1ad1 100644 --- a/drivers/infiniband/hw/erdma/erdma_cmdq.c +++ b/drivers/infiniband/hw/erdma/erdma_cmdq.c @@ -158,20 +158,13 @@ static int erdma_cmdq_eq_init(struct erdma_dev *dev) { struct erdma_cmdq *cmdq = &dev->cmdq; struct erdma_eq *eq = &cmdq->eq; + int ret; - eq->depth = cmdq->max_outstandings; - eq->qbuf = dma_alloc_coherent(&dev->pdev->dev, eq->depth << EQE_SHIFT, - &eq->qbuf_dma_addr, GFP_KERNEL); - if (!eq->qbuf) - return -ENOMEM; - - spin_lock_init(&eq->lock); - atomic64_set(&eq->event_num, 0); + ret = erdma_eq_common_init(dev, eq, cmdq->max_outstandings); + if (ret) + return ret; eq->db = dev->func_bar + ERDMA_REGS_CEQ_DB_BASE_REG; - eq->dbrec = dma_pool_zalloc(dev->db_pool, GFP_KERNEL, &eq->dbrec_dma); - if (!eq->dbrec) - goto err_out; erdma_reg_write32(dev, ERDMA_REGS_CMDQ_EQ_ADDR_H_REG, upper_32_bits(eq->qbuf_dma_addr)); @@ -181,12 +174,6 @@ static int erdma_cmdq_eq_init(struct erdma_dev *dev) erdma_reg_write64(dev, ERDMA_CMDQ_EQ_DB_HOST_ADDR_REG, eq->dbrec_dma); return 0; - -err_out: - dma_free_coherent(&dev->pdev->dev, eq->depth << EQE_SHIFT, eq->qbuf, - eq->qbuf_dma_addr); - - return -ENOMEM; } int erdma_cmdq_init(struct erdma_dev *dev) @@ -247,10 +234,7 @@ void erdma_cmdq_destroy(struct erdma_dev *dev) clear_bit(ERDMA_CMDQ_STATE_OK_BIT, &cmdq->state); - dma_free_coherent(&dev->pdev->dev, cmdq->eq.depth << EQE_SHIFT, - cmdq->eq.qbuf, cmdq->eq.qbuf_dma_addr); - - dma_pool_free(dev->db_pool, cmdq->eq.dbrec, cmdq->eq.dbrec_dma); + erdma_eq_destroy(dev, &cmdq->eq); dma_free_coherent(&dev->pdev->dev, cmdq->sq.depth << SQEBB_SHIFT, cmdq->sq.qbuf, cmdq->sq.qbuf_dma_addr); diff --git a/drivers/infiniband/hw/erdma/erdma_eq.c b/drivers/infiniband/hw/erdma/erdma_eq.c index 84ccdd8144c9..9a72fec6d5cc 100644 --- a/drivers/infiniband/hw/erdma/erdma_eq.c +++ b/drivers/infiniband/hw/erdma/erdma_eq.c @@ -80,50 +80,60 @@ void erdma_aeq_event_handler(struct erdma_dev *dev) notify_eq(&dev->aeq); } -int erdma_aeq_init(struct erdma_dev *dev) +int erdma_eq_common_init(struct erdma_dev *dev, struct erdma_eq *eq, u32 depth) { - struct erdma_eq *eq = &dev->aeq; + u32 buf_size = depth << EQE_SHIFT; - eq->depth = ERDMA_DEFAULT_EQ_DEPTH; - - eq->qbuf = dma_alloc_coherent(&dev->pdev->dev, eq->depth << EQE_SHIFT, + eq->qbuf = dma_alloc_coherent(&dev->pdev->dev, buf_size, &eq->qbuf_dma_addr, GFP_KERNEL); if (!eq->qbuf) return -ENOMEM; - spin_lock_init(&eq->lock); - atomic64_set(&eq->event_num, 0); - atomic64_set(&eq->notify_num, 0); - - eq->db = dev->func_bar + ERDMA_REGS_AEQ_DB_REG; eq->dbrec = dma_pool_zalloc(dev->db_pool, GFP_KERNEL, &eq->dbrec_dma); if (!eq->dbrec) - goto err_out; + goto err_free_qbuf; - erdma_reg_write32(dev, ERDMA_REGS_AEQ_ADDR_H_REG, - upper_32_bits(eq->qbuf_dma_addr)); - erdma_reg_write32(dev, ERDMA_REGS_AEQ_ADDR_L_REG, - lower_32_bits(eq->qbuf_dma_addr)); - erdma_reg_write32(dev, ERDMA_REGS_AEQ_DEPTH_REG, eq->depth); - erdma_reg_write64(dev, ERDMA_AEQ_DB_HOST_ADDR_REG, eq->dbrec_dma); + spin_lock_init(&eq->lock); + atomic64_set(&eq->event_num, 0); + atomic64_set(&eq->notify_num, 0); + eq->ci = 0; + eq->depth = depth; return 0; -err_out: - dma_free_coherent(&dev->pdev->dev, eq->depth << EQE_SHIFT, eq->qbuf, +err_free_qbuf: + dma_free_coherent(&dev->pdev->dev, buf_size, eq->qbuf, eq->qbuf_dma_addr); return -ENOMEM; } -void erdma_aeq_destroy(struct erdma_dev *dev) +void erdma_eq_destroy(struct erdma_dev *dev, struct erdma_eq *eq) { - struct erdma_eq *eq = &dev->aeq; - + dma_pool_free(dev->db_pool, eq->dbrec, eq->dbrec_dma); dma_free_coherent(&dev->pdev->dev, eq->depth << EQE_SHIFT, eq->qbuf, eq->qbuf_dma_addr); +} - dma_pool_free(dev->db_pool, eq->dbrec, eq->dbrec_dma); +int erdma_aeq_init(struct erdma_dev *dev) +{ + struct erdma_eq *eq = &dev->aeq; + int ret; + + ret = erdma_eq_common_init(dev, &dev->aeq, ERDMA_DEFAULT_EQ_DEPTH); + if (ret) + return ret; + + eq->db = dev->func_bar + ERDMA_REGS_AEQ_DB_REG; + + erdma_reg_write32(dev, ERDMA_REGS_AEQ_ADDR_H_REG, + upper_32_bits(eq->qbuf_dma_addr)); + erdma_reg_write32(dev, ERDMA_REGS_AEQ_ADDR_L_REG, + lower_32_bits(eq->qbuf_dma_addr)); + erdma_reg_write32(dev, ERDMA_REGS_AEQ_DEPTH_REG, eq->depth); + erdma_reg_write64(dev, ERDMA_AEQ_DB_HOST_ADDR_REG, eq->dbrec_dma); + + return 0; } void erdma_ceq_completion_handler(struct erdma_eq_cb *ceq_cb) @@ -234,32 +244,21 @@ static int erdma_ceq_init_one(struct erdma_dev *dev, u16 ceqn) struct erdma_eq *eq = &dev->ceqs[ceqn].eq; int ret; - eq->depth = ERDMA_DEFAULT_EQ_DEPTH; - eq->qbuf = dma_alloc_coherent(&dev->pdev->dev, eq->depth << EQE_SHIFT, - &eq->qbuf_dma_addr, GFP_KERNEL); - if (!eq->qbuf) - return -ENOMEM; - - spin_lock_init(&eq->lock); - atomic64_set(&eq->event_num, 0); - atomic64_set(&eq->notify_num, 0); + ret = erdma_eq_common_init(dev, eq, ERDMA_DEFAULT_EQ_DEPTH); + if (ret) + return ret; eq->db = dev->func_bar + ERDMA_REGS_CEQ_DB_BASE_REG + (ceqn + 1) * ERDMA_DB_SIZE; - - eq->dbrec = dma_pool_zalloc(dev->db_pool, GFP_KERNEL, &eq->dbrec_dma); - if (!eq->dbrec) { - dma_free_coherent(&dev->pdev->dev, eq->depth << EQE_SHIFT, - eq->qbuf, eq->qbuf_dma_addr); - return -ENOMEM; - } - - eq->ci = 0; dev->ceqs[ceqn].dev = dev; + dev->ceqs[ceqn].ready = true; /* CEQ indexed from 1, 0 rsvd for CMDQ-EQ. */ ret = create_eq_cmd(dev, ceqn + 1, eq); - dev->ceqs[ceqn].ready = ret ? false : true; + if (ret) { + erdma_eq_destroy(dev, eq); + dev->ceqs[ceqn].ready = false; + } return ret; } @@ -283,9 +282,7 @@ static void erdma_ceq_uninit_one(struct erdma_dev *dev, u16 ceqn) if (err) return; - dma_free_coherent(&dev->pdev->dev, eq->depth << EQE_SHIFT, eq->qbuf, - eq->qbuf_dma_addr); - dma_pool_free(dev->db_pool, eq->dbrec, eq->dbrec_dma); + erdma_eq_destroy(dev, eq); } int erdma_ceqs_init(struct erdma_dev *dev) diff --git a/drivers/infiniband/hw/erdma/erdma_main.c b/drivers/infiniband/hw/erdma/erdma_main.c index 7080f8a71ec4..9defbd55893a 100644 --- a/drivers/infiniband/hw/erdma/erdma_main.c +++ b/drivers/infiniband/hw/erdma/erdma_main.c @@ -333,7 +333,7 @@ static int erdma_probe_dev(struct pci_dev *pdev) erdma_cmdq_destroy(dev); err_uninit_aeq: - erdma_aeq_destroy(dev); + erdma_eq_destroy(dev, &dev->aeq); err_uninit_comm_irq: erdma_comm_irq_uninit(dev); @@ -366,7 +366,7 @@ static void erdma_remove_dev(struct pci_dev *pdev) erdma_ceqs_uninit(dev); erdma_hw_reset(dev); erdma_cmdq_destroy(dev); - erdma_aeq_destroy(dev); + erdma_eq_destroy(dev, &dev->aeq); erdma_comm_irq_uninit(dev); pci_free_irq_vectors(dev->pdev); erdma_device_uninit(dev);