From mboxrd@z Thu Jan 1 00:00:00 1970 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 BC685C74A5B for ; Tue, 14 Mar 2023 04:46:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229829AbjCNEqo (ORCPT ); Tue, 14 Mar 2023 00:46:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36836 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229813AbjCNEqk (ORCPT ); Tue, 14 Mar 2023 00:46:40 -0400 Received: from mail-pl1-x62b.google.com (mail-pl1-x62b.google.com [IPv6:2607:f8b0:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3DAB937F10 for ; Mon, 13 Mar 2023 21:46:37 -0700 (PDT) Received: by mail-pl1-x62b.google.com with SMTP id h8so15313840plf.10 for ; Mon, 13 Mar 2023 21:46:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1678769197; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=YmBMpLwO4qRSgpNN2zu2wmSlV0dO5yPKMRqsInWvopM=; b=cpsSqBecUtfR1YL08VzHXQKb+5jn+ts3gGNqf9sEp9Rf5VGxRyOXC4Ol/rGAWvxEp7 /zoNai5d3a+ptbhU5WJaTefpNmC+dOd1hF4WinSIoYbHUcU8AuSlflHuZbgkP4IbdM7m hV1Lo0CYP5maFSPBjqpIJmhUuTuz7Lj77/beCz1Ayn5sIuKhIV706ouoDUgmRUL1UXJD APLp0ZYjmD0vj3BxneLS7t1xISFq2dikx3/VSZLJaTyGtNSp2M23YBDIfMpokj4lc3RS Qoi9yvC782Y/rTo0k0RSJzml+kMvcnum3NoJmYZfr3FQ6W/fSFc0lGeF1OjOafkN4GkP lrKQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678769197; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=YmBMpLwO4qRSgpNN2zu2wmSlV0dO5yPKMRqsInWvopM=; b=U8Q9M6WnecBLAoRS4J2chR1fYUgGAKFLvEapuCEBPyijaWaJuMxKtyalyVw/a08Aj2 iU80Yfm0ePsnI5uIGLEzSbZxYFBK40eHFCDkNR3kUG+HDsYtFrJGZQsdTyjPE/0hGqu7 qKR6hpzsPVPOhxn56MyBLszi1qk8x+ncnW5GoNtN/WJM/cEpN8r01WX+Z9uCxNJunTjO 7PIp/3vWMMRyFRSM3rOZXmuteVGujSuzQ4C6MIsrQkBozvNaGZ8NwSzkWEaoieJvum53 gkWxTa6P0eGd74eY7BiagHc0Zhe1nSH/csob+bsFpNF9gdmplLtrSGXjKyIOwrww7d6z nG5A== X-Gm-Message-State: AO0yUKUrnhYTwhZfk/6bUgXcjc4G8NDtnplI54EC9AmrngM0nmi6rif0 h153Z7eplNxBaRg/I02iYc8OphU719EJt4towQ== X-Google-Smtp-Source: AK7set/oOtVKUX5G+g1F0lo2DANPM8LZueP8THFKLIt60oJY3hCXKh7XKtD1XH7xNVwbZ12h7bN4Sg== X-Received: by 2002:a17:902:c404:b0:19f:e9e7:4cb with SMTP id k4-20020a170902c40400b0019fe9e704cbmr8615091plk.45.1678769196675; Mon, 13 Mar 2023 21:46:36 -0700 (PDT) Received: from localhost.localdomain ([117.217.177.49]) by smtp.gmail.com with ESMTPSA id lh13-20020a170903290d00b0019c2b1c4ad4sm690125plb.6.2023.03.13.21.46.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Mar 2023 21:46:36 -0700 (PDT) From: Manivannan Sadhasivam To: lpieralisi@kernel.org, kw@linux.com Cc: kishon@kernel.org, bhelgaas@google.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH v3 1/7] PCI: endpoint: Pass EPF device ID to the probe function Date: Tue, 14 Mar 2023 10:16:17 +0530 Message-Id: <20230314044623.10254-2-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230314044623.10254-1-manivannan.sadhasivam@linaro.org> References: <20230314044623.10254-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Currently, the EPF probe function doesn't get the device ID argument needed to correctly identify the device table ID of the EPF device. When multiple entries are added to the "struct pci_epf_device_id" table, the probe function needs to identify the correct one. And the only way to do so is by storing the correct device ID in "struct pci_epf" during "pci_epf_match_id()" and passing that to probe(). Signed-off-by: Manivannan Sadhasivam --- drivers/pci/endpoint/functions/pci-epf-ntb.c | 3 ++- drivers/pci/endpoint/functions/pci-epf-test.c | 2 +- drivers/pci/endpoint/functions/pci-epf-vntb.c | 2 +- drivers/pci/endpoint/pci-epf-core.c | 8 +++++--- include/linux/pci-epf.h | 4 +++- 5 files changed, 12 insertions(+), 7 deletions(-) diff --git a/drivers/pci/endpoint/functions/pci-epf-ntb.c b/drivers/pci/endpoint/functions/pci-epf-ntb.c index 9a00448c7e61..980b4ecf19a2 100644 --- a/drivers/pci/endpoint/functions/pci-epf-ntb.c +++ b/drivers/pci/endpoint/functions/pci-epf-ntb.c @@ -2075,11 +2075,12 @@ static struct config_group *epf_ntb_add_cfs(struct pci_epf *epf, /** * epf_ntb_probe() - Probe NTB function driver * @epf: NTB endpoint function device + * @id: NTB endpoint function device ID * * Probe NTB function driver when endpoint function bus detects a NTB * endpoint function. */ -static int epf_ntb_probe(struct pci_epf *epf) +static int epf_ntb_probe(struct pci_epf *epf, const struct pci_epf_device_id *id) { struct epf_ntb *ntb; struct device *dev; diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c index 0f9d2ec822ac..d5fcc78a5b73 100644 --- a/drivers/pci/endpoint/functions/pci-epf-test.c +++ b/drivers/pci/endpoint/functions/pci-epf-test.c @@ -980,7 +980,7 @@ static const struct pci_epf_device_id pci_epf_test_ids[] = { {}, }; -static int pci_epf_test_probe(struct pci_epf *epf) +static int pci_epf_test_probe(struct pci_epf *epf, const struct pci_epf_device_id *id) { struct pci_epf_test *epf_test; struct device *dev = &epf->dev; diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c index b7c7a8af99f4..122eb7a12028 100644 --- a/drivers/pci/endpoint/functions/pci-epf-vntb.c +++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c @@ -1401,7 +1401,7 @@ static struct pci_epf_ops epf_ntb_ops = { * * Returns: Zero for success, or an error code in case of failure */ -static int epf_ntb_probe(struct pci_epf *epf) +static int epf_ntb_probe(struct pci_epf *epf, const struct pci_epf_device_id *id) { struct epf_ntb *ntb; struct device *dev; diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c index 2036e38be093..924564288c9a 100644 --- a/drivers/pci/endpoint/pci-epf-core.c +++ b/drivers/pci/endpoint/pci-epf-core.c @@ -494,11 +494,13 @@ static const struct device_type pci_epf_type = { }; static int -pci_epf_match_id(const struct pci_epf_device_id *id, const struct pci_epf *epf) +pci_epf_match_id(const struct pci_epf_device_id *id, struct pci_epf *epf) { while (id->name[0]) { - if (strcmp(epf->name, id->name) == 0) + if (strcmp(epf->name, id->name) == 0) { + epf->id = id; return true; + } id++; } @@ -526,7 +528,7 @@ static int pci_epf_device_probe(struct device *dev) epf->driver = driver; - return driver->probe(epf); + return driver->probe(epf, epf->id); } static void pci_epf_device_remove(struct device *dev) diff --git a/include/linux/pci-epf.h b/include/linux/pci-epf.h index a215dc8ce693..bc613f0df7e3 100644 --- a/include/linux/pci-epf.h +++ b/include/linux/pci-epf.h @@ -89,7 +89,7 @@ struct pci_epc_event_ops { * @id_table: identifies EPF devices for probing */ struct pci_epf_driver { - int (*probe)(struct pci_epf *epf); + int (*probe)(struct pci_epf *epf, const struct pci_epf_device_id *id); void (*remove)(struct pci_epf *epf); struct device_driver driver; @@ -131,6 +131,7 @@ struct pci_epf_bar { * @epc: the EPC device to which this EPF device is bound * @epf_pf: the physical EPF device to which this virtual EPF device is bound * @driver: the EPF driver to which this EPF device is bound + * @id: Pointer to the EPF device ID * @list: to add pci_epf as a list of PCI endpoint functions to pci_epc * @lock: mutex to protect pci_epf_ops * @sec_epc: the secondary EPC device to which this EPF device is bound @@ -158,6 +159,7 @@ struct pci_epf { struct pci_epc *epc; struct pci_epf *epf_pf; struct pci_epf_driver *driver; + const struct pci_epf_device_id *id; struct list_head list; /* mutex to protect against concurrent access of pci_epf_ops */ struct mutex lock; -- 2.25.1