From patchwork Wed Dec 18 00:57:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Dr. David Alan Gilbert" X-Patchwork-Id: 13912860 X-Patchwork-Delegate: kuba@kernel.org Received: from mx.treblig.org (mx.treblig.org [46.235.229.95]) (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 5541713D244; Wed, 18 Dec 2024 00:57:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.229.95 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734483482; cv=none; b=RIpHNjtUCzL37i/NhD932F4J9bXMUkkwfInBH+h38Vy0ZN1qbexTd+MurEAFzNcanaioKpLaOoAUIG+hxHHxeljPu1CjxQCDMHHMuXg90u9LYPnsKoKN3CrunkNuOKRSZS2oZnAWLlZNxBIxy6eLfHVge++APwteKlwFr5Cd1zg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734483482; c=relaxed/simple; bh=LtDr4bTi4I89tipAlSWYo8BDfzHXGRZkj7MtWhbeL+4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=d9mIjKkS0sxgeFaCOaCGHKnlP6K3l7cKJL3aKza3joL6jdJ+ntLydYOTnvOJi2H7aN+oatOu3JpIQyr/lbJmTU9zpCJCObsMJZRIOqWmwx12CSqXm3bRnFecZzN3RtPx/qbBKTNZQDnHJHwPjWpCt5jt5LYBzvtXzXY99l7NySA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=treblig.org; spf=pass smtp.mailfrom=treblig.org; dkim=pass (2048-bit key) header.d=treblig.org header.i=@treblig.org header.b=FkCpFpWM; arc=none smtp.client-ip=46.235.229.95 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=treblig.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=treblig.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=treblig.org header.i=@treblig.org header.b="FkCpFpWM" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=treblig.org ; s=bytemarkmx; h=MIME-Version:Message-ID:Date:Subject:From:Content-Type:From :Subject; bh=nBIeq+Yjp78pRWOuY/VWfVziqqfkWlDpUzxPnKAEnnE=; b=FkCpFpWMtzxAnPSk Yl7tAR5xGqJnG6VTff7l7PE4kPP5vQmf90rgcEE7bN66NEgiqhZE6YghXwtjq8Bu9goj5UJcQTKdp 9IWlMD6U/hfj9hsyUv9jWtIaA40ca/BbO7ihs79/4KIUU2Vkgo9x9VZihwV6C4YGHIL6VOOzWiBdi Naxk4AWDMepzqaFmnJZwDCrb93OcwdeQvgfk0U0S3askXV0Jb66iG1tFY1iEhVaua/F065imqyTB/ uN/M6C7RZTh8nj+oBWc0q9+0el2OmKvUUzuJ7J9RI58MZPUKEmIV7goyknfeeHK3VrZHRS5RspZ2I D6dCd3McYsw8gOL/EA==; Received: from localhost ([127.0.0.1] helo=dalek.home.treblig.org) by mx.treblig.org with esmtp (Exim 4.96) (envelope-from ) id 1tNiNX-005zvH-1U; Wed, 18 Dec 2024 00:57:31 +0000 From: linux@treblig.org To: salil.mehta@huawei.com, shenjian15@huawei.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, "Dr. David Alan Gilbert" Subject: [PATCH net-next 1/3] net: hisilicon: hns: Remove unused hns_dsaf_roce_reset Date: Wed, 18 Dec 2024 00:57:27 +0000 Message-ID: <20241218005729.244987-2-linux@treblig.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241218005729.244987-1-linux@treblig.org> References: <20241218005729.244987-1-linux@treblig.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org From: "Dr. David Alan Gilbert" hns_dsaf_roce_reset() has been unused since 2021's commit 38d220882426 ("RDMA/hns: Remove support for HIP06") Remove it. Signed-off-by: Dr. David Alan Gilbert --- .../ethernet/hisilicon/hns/hns_dsaf_main.c | 109 ------------------ .../ethernet/hisilicon/hns/hns_dsaf_main.h | 2 - 2 files changed, 111 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c index 851490346261..6b6ced37e490 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c @@ -3019,115 +3019,6 @@ static struct platform_driver g_dsaf_driver = { module_platform_driver(g_dsaf_driver); -/** - * hns_dsaf_roce_reset - reset dsaf and roce - * @dsaf_fwnode: Pointer to framework node for the dasf - * @dereset: false - request reset , true - drop reset - * return 0 - success , negative -fail - */ -int hns_dsaf_roce_reset(struct fwnode_handle *dsaf_fwnode, bool dereset) -{ - struct dsaf_device *dsaf_dev; - struct platform_device *pdev; - u32 mp; - u32 sl; - u32 credit; - int i; - static const u32 port_map[DSAF_ROCE_CREDIT_CHN][DSAF_ROCE_CHAN_MODE_NUM] = { - {DSAF_ROCE_PORT_0, DSAF_ROCE_PORT_0, DSAF_ROCE_PORT_0}, - {DSAF_ROCE_PORT_1, DSAF_ROCE_PORT_0, DSAF_ROCE_PORT_0}, - {DSAF_ROCE_PORT_2, DSAF_ROCE_PORT_1, DSAF_ROCE_PORT_0}, - {DSAF_ROCE_PORT_3, DSAF_ROCE_PORT_1, DSAF_ROCE_PORT_0}, - {DSAF_ROCE_PORT_4, DSAF_ROCE_PORT_2, DSAF_ROCE_PORT_1}, - {DSAF_ROCE_PORT_4, DSAF_ROCE_PORT_2, DSAF_ROCE_PORT_1}, - {DSAF_ROCE_PORT_5, DSAF_ROCE_PORT_3, DSAF_ROCE_PORT_1}, - {DSAF_ROCE_PORT_5, DSAF_ROCE_PORT_3, DSAF_ROCE_PORT_1}, - }; - static const u32 sl_map[DSAF_ROCE_CREDIT_CHN][DSAF_ROCE_CHAN_MODE_NUM] = { - {DSAF_ROCE_SL_0, DSAF_ROCE_SL_0, DSAF_ROCE_SL_0}, - {DSAF_ROCE_SL_0, DSAF_ROCE_SL_1, DSAF_ROCE_SL_1}, - {DSAF_ROCE_SL_0, DSAF_ROCE_SL_0, DSAF_ROCE_SL_2}, - {DSAF_ROCE_SL_0, DSAF_ROCE_SL_1, DSAF_ROCE_SL_3}, - {DSAF_ROCE_SL_0, DSAF_ROCE_SL_0, DSAF_ROCE_SL_0}, - {DSAF_ROCE_SL_1, DSAF_ROCE_SL_1, DSAF_ROCE_SL_1}, - {DSAF_ROCE_SL_0, DSAF_ROCE_SL_0, DSAF_ROCE_SL_2}, - {DSAF_ROCE_SL_1, DSAF_ROCE_SL_1, DSAF_ROCE_SL_3}, - }; - - /* find the platform device corresponding to fwnode */ - if (is_of_node(dsaf_fwnode)) { - pdev = of_find_device_by_node(to_of_node(dsaf_fwnode)); - } else if (is_acpi_device_node(dsaf_fwnode)) { - pdev = hns_dsaf_find_platform_device(dsaf_fwnode); - } else { - pr_err("fwnode is neither OF or ACPI type\n"); - return -EINVAL; - } - - /* check if we were a success in fetching pdev */ - if (!pdev) { - pr_err("couldn't find platform device for node\n"); - return -ENODEV; - } - - /* retrieve the dsaf_device from the driver data */ - dsaf_dev = dev_get_drvdata(&pdev->dev); - if (!dsaf_dev) { - dev_err(&pdev->dev, "dsaf_dev is NULL\n"); - put_device(&pdev->dev); - return -ENODEV; - } - - /* now, make sure we are running on compatible SoC */ - if (AE_IS_VER1(dsaf_dev->dsaf_ver)) { - dev_err(dsaf_dev->dev, "%s v1 chip doesn't support RoCE!\n", - dsaf_dev->ae_dev.name); - put_device(&pdev->dev); - return -ENODEV; - } - - /* do reset or de-reset according to the flag */ - if (!dereset) { - /* reset rocee-channels in dsaf and rocee */ - dsaf_dev->misc_op->hns_dsaf_srst_chns(dsaf_dev, DSAF_CHNS_MASK, - false); - dsaf_dev->misc_op->hns_dsaf_roce_srst(dsaf_dev, false); - } else { - /* configure dsaf tx roce correspond to port map and sl map */ - mp = dsaf_read_dev(dsaf_dev, DSAF_ROCE_PORT_MAP_REG); - for (i = 0; i < DSAF_ROCE_CREDIT_CHN; i++) - dsaf_set_field(mp, 7 << i * 3, i * 3, - port_map[i][DSAF_ROCE_6PORT_MODE]); - dsaf_set_field(mp, 3 << i * 3, i * 3, 0); - dsaf_write_dev(dsaf_dev, DSAF_ROCE_PORT_MAP_REG, mp); - - sl = dsaf_read_dev(dsaf_dev, DSAF_ROCE_SL_MAP_REG); - for (i = 0; i < DSAF_ROCE_CREDIT_CHN; i++) - dsaf_set_field(sl, 3 << i * 2, i * 2, - sl_map[i][DSAF_ROCE_6PORT_MODE]); - dsaf_write_dev(dsaf_dev, DSAF_ROCE_SL_MAP_REG, sl); - - /* de-reset rocee-channels in dsaf and rocee */ - dsaf_dev->misc_op->hns_dsaf_srst_chns(dsaf_dev, DSAF_CHNS_MASK, - true); - msleep(SRST_TIME_INTERVAL); - dsaf_dev->misc_op->hns_dsaf_roce_srst(dsaf_dev, true); - - /* enable dsaf channel rocee credit */ - credit = dsaf_read_dev(dsaf_dev, DSAF_SBM_ROCEE_CFG_REG_REG); - dsaf_set_bit(credit, DSAF_SBM_ROCEE_CFG_CRD_EN_B, 0); - dsaf_write_dev(dsaf_dev, DSAF_SBM_ROCEE_CFG_REG_REG, credit); - - dsaf_set_bit(credit, DSAF_SBM_ROCEE_CFG_CRD_EN_B, 1); - dsaf_write_dev(dsaf_dev, DSAF_SBM_ROCEE_CFG_REG_REG, credit); - } - - put_device(&pdev->dev); - - return 0; -} -EXPORT_SYMBOL(hns_dsaf_roce_reset); - MODULE_LICENSE("GPL"); MODULE_AUTHOR("Huawei Tech. Co., Ltd."); MODULE_DESCRIPTION("HNS DSAF driver"); diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h index 0eb03dff1a8b..c90f41c75500 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h @@ -463,6 +463,4 @@ int hns_dsaf_clr_mac_mc_port(struct dsaf_device *dsaf_dev, u8 mac_id, u8 port_num); int hns_dsaf_wait_pkt_clean(struct dsaf_device *dsaf_dev, int port); -int hns_dsaf_roce_reset(struct fwnode_handle *dsaf_fwnode, bool dereset); - #endif /* __HNS_DSAF_MAIN_H__ */