From patchwork Tue Mar 28 15:35:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zanussi, Tom" X-Patchwork-Id: 13191272 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DB372C76196 for ; Tue, 28 Mar 2023 15:35:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233380AbjC1Pfz (ORCPT ); Tue, 28 Mar 2023 11:35:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45056 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233215AbjC1Pfu (ORCPT ); Tue, 28 Mar 2023 11:35:50 -0400 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BA3A9C3; Tue, 28 Mar 2023 08:35:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1680017747; x=1711553747; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=kO38bfPMogxI1tGFhan6UK8YLGWBnl59qm86GfdzocM=; b=RVMxGRtDoL90VBS8feoVxBgewC9oFoqiHVZV6YzQxzIJFXup5PDavxfV fUEnvimvq5nXNdopIDlnjqva+JNCJspbOtVQus35n9QjgURIGdvTtI2I4 4zDSRwodUNe6JeCuFR7BZffE4/pdWIYV5RvowoTshuhotZN6lCfTprJMz VFsHm0gn+N8Kiz0lFMNkBG4w9hIMj2Ing+NuzNgwqMjzK5c7qVPeepuKk PCE9/y7MBeEORb1EZ1FbzHn4FNhs2M2AhiS65VNG4yBoTkahZ9LrHlXU9 rHKLD9/cAk/7FVt5C7c/npqxDoqOQb5RWGqsUWPpUDiBL0pDjmANlDbj+ Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10663"; a="342192034" X-IronPort-AV: E=Sophos;i="5.98,297,1673942400"; d="scan'208";a="342192034" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Mar 2023 08:35:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10663"; a="683948280" X-IronPort-AV: E=Sophos;i="5.98,297,1673942400"; d="scan'208";a="683948280" Received: from sdwarak1-mobl.amr.corp.intel.com (HELO tzanussi-mobl1.intel.com) ([10.212.127.200]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Mar 2023 08:35:44 -0700 From: Tom Zanussi To: herbert@gondor.apana.org.au, davem@davemloft.net, fenghua.yu@intel.com, vkoul@kernel.org Cc: dave.jiang@intel.com, tony.luck@intel.com, wajdi.k.feghali@intel.com, james.guilford@intel.com, kanchana.p.sridhar@intel.com, giovanni.cabiddu@intel.com, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, dmaengine@vger.kernel.org Subject: [PATCH v2 02/15] dmaengine: idxd: add external module driver support for dsa_bus_type Date: Tue, 28 Mar 2023 10:35:22 -0500 Message-Id: <20230328153535.126223-3-tom.zanussi@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230328153535.126223-1-tom.zanussi@linux.intel.com> References: <20230328153535.126223-1-tom.zanussi@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org From: Dave Jiang Add support to allow an external driver to be registered to the dsa_bus_type and also auto-loaded. Signed-off-by: Dave Jiang Signed-off-by: Tom Zanussi --- drivers/dma/idxd/bus.c | 6 ++++++ drivers/dma/idxd/idxd.h | 3 +++ 2 files changed, 9 insertions(+) diff --git a/drivers/dma/idxd/bus.c b/drivers/dma/idxd/bus.c index 6f84621053c6..0c9e689a2e77 100644 --- a/drivers/dma/idxd/bus.c +++ b/drivers/dma/idxd/bus.c @@ -67,11 +67,17 @@ static void idxd_config_bus_remove(struct device *dev) idxd_drv->remove(idxd_dev); } +static int idxd_bus_uevent(const struct device *dev, struct kobj_uevent_env *env) +{ + return add_uevent_var(env, "MODALIAS=" IDXD_DEVICES_MODALIAS_FMT, 0); +} + struct bus_type dsa_bus_type = { .name = "dsa", .match = idxd_config_bus_match, .probe = idxd_config_bus_probe, .remove = idxd_config_bus_remove, + .uevent = idxd_bus_uevent, }; EXPORT_SYMBOL_GPL(dsa_bus_type); diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h index 505118fc19de..719f9f1662ad 100644 --- a/drivers/dma/idxd/idxd.h +++ b/drivers/dma/idxd/idxd.h @@ -587,6 +587,9 @@ static inline int idxd_wq_driver_name_match(struct idxd_wq *wq, struct device *d return (strncmp(wq->driver_name, dev->driver->name, strlen(dev->driver->name)) == 0); } +#define MODULE_ALIAS_IDXD_DEVICE(type) MODULE_ALIAS("idxd:t" __stringify(type) "*") +#define IDXD_DEVICES_MODALIAS_FMT "idxd:t%d" + int __must_check __idxd_driver_register(struct idxd_device_driver *idxd_drv, struct module *module, const char *mod_name); #define idxd_driver_register(driver) \