From patchwork Mon Nov 27 20:26:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tom Zanussi X-Patchwork-Id: 747644 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="AThFRUDC" Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7C743D4B; Mon, 27 Nov 2023 12:27:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701116832; x=1732652832; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=buoGPdrkkKx4hhUIceeTcYHbzYQ9xgtGVojseC0ReWs=; b=AThFRUDCMuac86msr1Sx+P8hPr9f6Z7ojv/yRh16/g2UWRX7/Mg8b9RJ s0/Lh1KZcFTooMOsTJfBZepeBiZYrrq62Vb6YRHcEjaUXUxm2eK72+QD3 OrS+DDRhv8Q4UGpiuIjjl94GclnohET7AEc+kWoFl6/fixBbZ+XsVTUj2 t+QE7yfRnePWMz21HSzQOmzhZF6ZHGd11QdcQeh9cuhV8ZgJ3bqKFf1Wt pdGswO3c2/piM2BpTECd/y7cGzovQmdow4NfpdsRndXG9gN5KTUHyZ3WR 6yh8fYGA2Bo565dS7rOTf5s6J0ZORzmZE5lOhvnqllX+TlorboH/u5r9i w==; X-IronPort-AV: E=McAfee;i="6600,9927,10907"; a="457115462" X-IronPort-AV: E=Sophos;i="6.04,231,1695711600"; d="scan'208";a="457115462" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Nov 2023 12:27:12 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.04,231,1695711600"; d="scan'208";a="16394517" Received: from rpkulapa-mobl.amr.corp.intel.com (HELO tzanussi-mobl1.hsd1.il.comcast.net) ([10.213.183.92]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Nov 2023 12:27:11 -0800 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, vinodh.gopal@intel.com, giovanni.cabiddu@intel.com, pavel@ucw.cz, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, dmaengine@vger.kernel.org Subject: [PATCH v10 01/14] dmaengine: idxd: add external module driver support for dsa_bus_type Date: Mon, 27 Nov 2023 14:26:51 -0600 Message-Id: <20231127202704.1263376-2-tom.zanussi@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231127202704.1263376-1-tom.zanussi@linux.intel.com> References: <20231127202704.1263376-1-tom.zanussi@linux.intel.com> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 Reviewed-by: Fenghua Yu Acked-by: Vinod Koul --- 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 1e89c80a07fc..e541d19f14d0 100644 --- a/drivers/dma/idxd/idxd.h +++ b/drivers/dma/idxd/idxd.h @@ -655,6 +655,9 @@ 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) \