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Received: from HE1PR0401MB2331.eurprd04.prod.outlook.com (2603:10a6:3:24::22) by DB9PR04MB8234.eurprd04.prod.outlook.com (2603:10a6:10:25d::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5791.20; Wed, 2 Nov 2022 14:10:37 +0000 Received: from HE1PR0401MB2331.eurprd04.prod.outlook.com ([fe80::44bb:8387:8f4b:6a28]) by HE1PR0401MB2331.eurprd04.prod.outlook.com ([fe80::44bb:8387:8f4b:6a28%11]) with mapi id 15.20.5769.021; Wed, 2 Nov 2022 14:10:37 +0000 From: Frank Li To: mani@kernel.org Cc: Frank.Li@nxp.com, allenbh@gmail.com, bhelgaas@google.com, dave.jiang@intel.com, helgaas@kernel.org, imx@lists.linux.dev, jdmason@kudzu.us, kw@linux.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, lpieralisi@kernel.org, ntb@lists.linux.dev Subject: [PATCH v16 1/7] PCI: endpoint: pci-epf-vntb: clean up kernel_doc warning Date: Wed, 2 Nov 2022 10:10:08 -0400 Message-Id: <20221102141014.1025893-2-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221102141014.1025893-1-Frank.Li@nxp.com> References: <20221102141014.1025893-1-Frank.Li@nxp.com> X-ClientProxiedBy: SJ0PR05CA0210.namprd05.prod.outlook.com (2603:10b6:a03:330::35) To HE1PR0401MB2331.eurprd04.prod.outlook.com (2603:10a6:3:24::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: HE1PR0401MB2331:EE_|DB9PR04MB8234:EE_ X-MS-Office365-Filtering-Correlation-Id: ee054991-efb9-4a4b-70c0-08dabcdc039b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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/** - * epf_ntb_link_up() - Raise link_up interrupt to Virtual Host + * epf_ntb_link_up() - Raise link_up interrupt to Virtual Host (VHOST) * @ntb: NTB device that facilitates communication between HOST and VHOST * @link_up: true or false indicating Link is UP or Down * * Once NTB function in HOST invoke ntb_link_enable(), - * this NTB function driver will trigger a link event to vhost. + * this NTB function driver will trigger a link event to VHOST. + * + * Returns: Zero for success, or an error code in case of failure */ static int epf_ntb_link_up(struct epf_ntb *ntb, bool link_up) { @@ -175,9 +177,9 @@ static int epf_ntb_link_up(struct epf_ntb *ntb, bool link_up) } /** - * epf_ntb_configure_mw() - Configure the Outbound Address Space for vhost - * to access the memory window of host - * @ntb: NTB device that facilitates communication between host and vhost + * epf_ntb_configure_mw() - Configure the Outbound Address Space for VHOST + * to access the memory window of HOST + * @ntb: NTB device that facilitates communication between HOST and VHOST * @mw: Index of the memory window (either 0, 1, 2 or 3) * * EP Outbound Window @@ -194,7 +196,9 @@ static int epf_ntb_link_up(struct epf_ntb *ntb, bool link_up) * | | | | * | | | | * +--------+ +-----------+ - * VHost PCI EP + * VHOST PCI EP + * + * Returns: Zero for success, or an error code in case of failure */ static int epf_ntb_configure_mw(struct epf_ntb *ntb, u32 mw) { @@ -219,7 +223,7 @@ static int epf_ntb_configure_mw(struct epf_ntb *ntb, u32 mw) /** * epf_ntb_teardown_mw() - Teardown the configured OB ATU - * @ntb: NTB device that facilitates communication between HOST and vHOST + * @ntb: NTB device that facilitates communication between HOST and VHOST * @mw: Index of the memory window (either 0, 1, 2 or 3) * * Teardown the configured OB ATU configured in epf_ntb_configure_mw() using @@ -234,12 +238,12 @@ static void epf_ntb_teardown_mw(struct epf_ntb *ntb, u32 mw) } /** - * epf_ntb_cmd_handler() - Handle commands provided by the NTB Host + * epf_ntb_cmd_handler() - Handle commands provided by the NTB HOST * @work: work_struct for the epf_ntb_epc * * Workqueue function that gets invoked for the two epf_ntb_epc * periodically (once every 5ms) to see if it has received any commands - * from NTB host. The host can send commands to configure doorbell or + * from NTB HOST. The HOST can send commands to configure doorbell or * configure memory window or to update link status. */ static void epf_ntb_cmd_handler(struct work_struct *work) @@ -321,8 +325,8 @@ static void epf_ntb_cmd_handler(struct work_struct *work) /** * epf_ntb_config_sspad_bar_clear() - Clear Config + Self scratchpad BAR - * @ntb_epc: EPC associated with one of the HOST which holds peer's outbound - * address. + * @ntb: EPC associated with one of the HOST which holds peer's outbound + * address. * * Clear BAR0 of EP CONTROLLER 1 which contains the HOST1's config and * self scratchpad region (removes inbound ATU configuration). While BAR0 is @@ -331,8 +335,10 @@ static void epf_ntb_cmd_handler(struct work_struct *work) * used for self scratchpad from epf_ntb_bar[BAR_CONFIG]. * * Please note the self scratchpad region and config region is combined to - * a single region and mapped using the same BAR. Also note HOST2's peer - * scratchpad is HOST1's self scratchpad. + * a single region and mapped using the same BAR. Also note VHOST's peer + * scratchpad is HOST's self scratchpad. + * + * Returns: void */ static void epf_ntb_config_sspad_bar_clear(struct epf_ntb *ntb) { @@ -347,13 +353,15 @@ static void epf_ntb_config_sspad_bar_clear(struct epf_ntb *ntb) /** * epf_ntb_config_sspad_bar_set() - Set Config + Self scratchpad BAR - * @ntb: NTB device that facilitates communication between HOST and vHOST + * @ntb: NTB device that facilitates communication between HOST and VHOST * - * Map BAR0 of EP CONTROLLER 1 which contains the HOST1's config and + * Map BAR0 of EP CONTROLLER which contains the VHOST's config and * self scratchpad region. * * Please note the self scratchpad region and config region is combined to * a single region and mapped using the same BAR. + * + * Returns: Zero for success, or an error code in case of failure */ static int epf_ntb_config_sspad_bar_set(struct epf_ntb *ntb) { @@ -380,7 +388,7 @@ static int epf_ntb_config_sspad_bar_set(struct epf_ntb *ntb) /** * epf_ntb_config_spad_bar_free() - Free the physical memory associated with * config + scratchpad region - * @ntb: NTB device that facilitates communication between HOST and vHOST + * @ntb: NTB device that facilitates communication between HOST and VHOST */ static void epf_ntb_config_spad_bar_free(struct epf_ntb *ntb) { @@ -393,11 +401,13 @@ static void epf_ntb_config_spad_bar_free(struct epf_ntb *ntb) /** * epf_ntb_config_spad_bar_alloc() - Allocate memory for config + scratchpad * region - * @ntb: NTB device that facilitates communication between HOST1 and HOST2 + * @ntb: NTB device that facilitates communication between HOST and VHOST * * Allocate the Local Memory mentioned in the above diagram. The size of * CONFIG REGION is sizeof(struct epf_ntb_ctrl) and size of SCRATCHPAD REGION * is obtained from "spad-count" configfs entry. + * + * Returns: Zero for success, or an error code in case of failure */ static int epf_ntb_config_spad_bar_alloc(struct epf_ntb *ntb) { @@ -465,11 +475,13 @@ static int epf_ntb_config_spad_bar_alloc(struct epf_ntb *ntb) } /** - * epf_ntb_configure_interrupt() - Configure MSI/MSI-X capaiblity - * @ntb: NTB device that facilitates communication between HOST and vHOST + * epf_ntb_configure_interrupt() - Configure MSI/MSI-X capability + * @ntb: NTB device that facilitates communication between HOST and VHOST * * Configure MSI/MSI-X capability for each interface with number of * interrupts equal to "db_count" configfs entry. + * + * Returns: Zero for success, or an error code in case of failure */ static int epf_ntb_configure_interrupt(struct epf_ntb *ntb) { @@ -511,7 +523,9 @@ static int epf_ntb_configure_interrupt(struct epf_ntb *ntb) /** * epf_ntb_db_bar_init() - Configure Doorbell window BARs - * @ntb: NTB device that facilitates communication between HOST and vHOST + * @ntb: NTB device that facilitates communication between HOST and VHOST + * + * Returns: Zero for success, or an error code in case of failure */ static int epf_ntb_db_bar_init(struct epf_ntb *ntb) { @@ -566,7 +580,7 @@ static void epf_ntb_mw_bar_clear(struct epf_ntb *ntb, int num_mws); /** * epf_ntb_db_bar_clear() - Clear doorbell BAR and free memory * allocated in peer's outbound address space - * @ntb: NTB device that facilitates communication between HOST and vHOST + * @ntb: NTB device that facilitates communication between HOST and VHOST */ static void epf_ntb_db_bar_clear(struct epf_ntb *ntb) { @@ -582,8 +596,9 @@ static void epf_ntb_db_bar_clear(struct epf_ntb *ntb) /** * epf_ntb_mw_bar_init() - Configure Memory window BARs - * @ntb: NTB device that facilitates communication between HOST and vHOST + * @ntb: NTB device that facilitates communication between HOST and VHOST * + * Returns: Zero for success, or an error code in case of failure */ static int epf_ntb_mw_bar_init(struct epf_ntb *ntb) { @@ -639,7 +654,7 @@ static int epf_ntb_mw_bar_init(struct epf_ntb *ntb) /** * epf_ntb_mw_bar_clear() - Clear Memory window BARs - * @ntb: NTB device that facilitates communication between HOST and vHOST + * @ntb: NTB device that facilitates communication between HOST and VHOST */ static void epf_ntb_mw_bar_clear(struct epf_ntb *ntb, int num_mws) { @@ -662,7 +677,7 @@ static void epf_ntb_mw_bar_clear(struct epf_ntb *ntb, int num_mws) /** * epf_ntb_epc_destroy() - Cleanup NTB EPC interface - * @ntb: NTB device that facilitates communication between HOST and vHOST + * @ntb: NTB device that facilitates communication between HOST and VHOST * * Wrapper for epf_ntb_epc_destroy_interface() to cleanup all the NTB interfaces */ @@ -675,7 +690,9 @@ static void epf_ntb_epc_destroy(struct epf_ntb *ntb) /** * epf_ntb_init_epc_bar() - Identify BARs to be used for each of the NTB * constructs (scratchpad region, doorbell, memorywindow) - * @ntb: NTB device that facilitates communication between HOST and vHOST + * @ntb: NTB device that facilitates communication between HOST and VHOST + * + * Returns: Zero for success, or an error code in case of failure */ static int epf_ntb_init_epc_bar(struct epf_ntb *ntb) { @@ -716,11 +733,13 @@ static int epf_ntb_init_epc_bar(struct epf_ntb *ntb) /** * epf_ntb_epc_init() - Initialize NTB interface - * @ntb: NTB device that facilitates communication between HOST and vHOST2 + * @ntb: NTB device that facilitates communication between HOST and VHOST * * Wrapper to initialize a particular EPC interface and start the workqueue - * to check for commands from host. This function will write to the + * to check for commands from HOST. This function will write to the * EP controller HW for configuring it. + * + * Returns: Zero for success, or an error code in case of failure */ static int epf_ntb_epc_init(struct epf_ntb *ntb) { @@ -787,7 +806,7 @@ static int epf_ntb_epc_init(struct epf_ntb *ntb) /** * epf_ntb_epc_cleanup() - Cleanup all NTB interfaces - * @ntb: NTB device that facilitates communication between HOST1 and HOST2 + * @ntb: NTB device that facilitates communication between HOST and VHOST * * Wrapper to cleanup all NTB interfaces. */ @@ -951,6 +970,8 @@ static const struct config_item_type ntb_group_type = { * * Add configfs directory specific to NTB. This directory will hold * NTB specific properties like db_count, spad_count, num_mws etc., + * + * Returns: Pointer to config_group */ static struct config_group *epf_ntb_add_cfs(struct pci_epf *epf, struct config_group *group) @@ -1292,6 +1313,8 @@ static struct pci_driver vntb_pci_driver = { * Invoked when a primary interface or secondary interface is bound to EPC * device. This function will succeed only when EPC is bound to both the * interfaces. + * + * Returns: Zero for success, or an error code in case of failure */ static int epf_ntb_bind(struct pci_epf *epf) { @@ -1377,6 +1400,8 @@ static struct pci_epf_ops epf_ntb_ops = { * * Probe NTB function driver when endpoint function bus detects a NTB * endpoint function. + * + * Returns: Zero for success, or an error code in case of failure */ static int epf_ntb_probe(struct pci_epf *epf) { From patchwork Wed Nov 2 14:10:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 1698175 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: legolas.ozlabs.org; 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- u32 argument; - u16 command_status; - u16 link_status; - u32 topology; - u64 addr; - u64 size; - u32 num_mws; - u32 reserved; - u32 spad_offset; - u32 spad_count; - u32 db_entry_size; - u32 db_data[MAX_DB_COUNT]; - u32 db_offset[MAX_DB_COUNT]; + u32 command; + u32 argument; + u16 command_status; + u16 link_status; + u32 topology; + u64 addr; + u64 size; + u32 num_mws; + u32 reserved; + u32 spad_offset; + u32 spad_count; + u32 db_entry_size; + u32 db_data[MAX_DB_COUNT]; + u32 db_offset[MAX_DB_COUNT]; } __packed; struct epf_ntb { From patchwork Wed Nov 2 14:10:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 1698176 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-pci-owner@vger.kernel.org; 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Wed, 2 Nov 2022 14:10:45 +0000 From: Frank Li To: mani@kernel.org Cc: Frank.Li@nxp.com, allenbh@gmail.com, bhelgaas@google.com, dave.jiang@intel.com, helgaas@kernel.org, imx@lists.linux.dev, jdmason@kudzu.us, kw@linux.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, lpieralisi@kernel.org, ntb@lists.linux.dev Subject: [PATCH v16 3/7] PCI: endpoint: pci-epf-vntb: fix call pci_epc_mem_free_addr() at err path Date: Wed, 2 Nov 2022 10:10:10 -0400 Message-Id: <20221102141014.1025893-4-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221102141014.1025893-1-Frank.Li@nxp.com> References: <20221102141014.1025893-1-Frank.Li@nxp.com> X-ClientProxiedBy: SJ0PR05CA0210.namprd05.prod.outlook.com (2603:10b6:a03:330::35) To HE1PR0401MB2331.eurprd04.prod.outlook.com (2603:10a6:3:24::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: HE1PR0401MB2331:EE_|DB9PR04MB8234:EE_ X-MS-Office365-Filtering-Correlation-Id: ddff5be1-4526-4700-48ef-08dabcdc085b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Fixes: e35f56bb0330 ("PCI: endpoint: Support NTB transfer between RC and EP") Signed-off-by: Frank Li --- drivers/pci/endpoint/functions/pci-epf-vntb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c index 1863006cc36c..191924a83454 100644 --- a/drivers/pci/endpoint/functions/pci-epf-vntb.c +++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c @@ -571,7 +571,7 @@ static int epf_ntb_db_bar_init(struct epf_ntb *ntb) return ret; err_alloc_peer_mem: - pci_epc_mem_free_addr(ntb->epf->epc, epf_bar->phys_addr, mw_addr, epf_bar->size); + pci_epf_free_space(ntb->epf, mw_addr, barno, 0); return -1; } From patchwork Wed Nov 2 14:10:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 1698177 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Wed, 2 Nov 2022 14:10:48 +0000 From: Frank Li To: mani@kernel.org Cc: Frank.Li@nxp.com, allenbh@gmail.com, bhelgaas@google.com, dave.jiang@intel.com, helgaas@kernel.org, imx@lists.linux.dev, jdmason@kudzu.us, kw@linux.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, lpieralisi@kernel.org, ntb@lists.linux.dev Subject: [PATCH v16 4/7] PCI: endpoint: pci-epf-vntb: remove unused field epf_db_phy Date: Wed, 2 Nov 2022 10:10:11 -0400 Message-Id: <20221102141014.1025893-5-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221102141014.1025893-1-Frank.Li@nxp.com> References: <20221102141014.1025893-1-Frank.Li@nxp.com> X-ClientProxiedBy: SJ0PR05CA0210.namprd05.prod.outlook.com (2603:10b6:a03:330::35) To HE1PR0401MB2331.eurprd04.prod.outlook.com (2603:10a6:3:24::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: HE1PR0401MB2331:EE_|DB9PR04MB8234:EE_ X-MS-Office365-Filtering-Correlation-Id: 3abff87d-dcbc-4cfd-229b-08dabcdc0aa8 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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- phys_addr_t epf_db_phy; void __iomem *epf_db; phys_addr_t vpci_mw_phy[MAX_MW]; From patchwork Wed Nov 2 14:10:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 1698178 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256 header.s=selector2 header.b=Y+FWnPV5; dkim-atps=neutral Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4N2TML5w6Jz23lK for ; Thu, 3 Nov 2022 01:11:10 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231433AbiKBOLI (ORCPT ); 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Signed-off-by: Frank Li Acked-by: Manivannan Sadhasivam --- drivers/pci/endpoint/functions/pci-epf-vntb.c | 24 +++++++++---------- 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c index ee66101cb5c4..54616281da9e 100644 --- a/drivers/pci/endpoint/functions/pci-epf-vntb.c +++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c @@ -257,12 +257,12 @@ static void epf_ntb_cmd_handler(struct work_struct *work) ntb = container_of(work, struct epf_ntb, cmd_handler.work); for (i = 1; i < ntb->db_count; i++) { - if (readl(ntb->epf_db + i * 4)) { - if (readl(ntb->epf_db + i * 4)) + if (readl(ntb->epf_db + i * sizeof(u32))) { + if (readl(ntb->epf_db + i * sizeof(u32))) ntb->db |= 1 << (i - 1); ntb_db_event(&ntb->ntb, i); - writel(0, ntb->epf_db + i * 4); + writel(0, ntb->epf_db + i * sizeof(u32)); } } @@ -433,7 +433,7 @@ static int epf_ntb_config_spad_bar_alloc(struct epf_ntb *ntb) spad_count = ntb->spad_count; ctrl_size = sizeof(struct epf_ntb_ctrl); - spad_size = 2 * spad_count * 4; + spad_size = 2 * spad_count * sizeof(u32); if (!align) { ctrl_size = roundup_pow_of_two(ctrl_size); @@ -463,7 +463,7 @@ static int epf_ntb_config_spad_bar_alloc(struct epf_ntb *ntb) ctrl->num_mws = ntb->num_mws; ntb->spad_size = spad_size; - ctrl->db_entry_size = 4; + ctrl->db_entry_size = sizeof(u32); for (i = 0; i < ntb->db_count; i++) { ntb->reg->db_data[i] = 1 + i; @@ -535,7 +535,7 @@ static int epf_ntb_db_bar_init(struct epf_ntb *ntb) struct pci_epf_bar *epf_bar; void __iomem *mw_addr; enum pci_barno barno; - size_t size = 4 * ntb->db_count; + size_t size = sizeof(u32) * ntb->db_count; epc_features = pci_epc_get_features(ntb->epf->epc, ntb->epf->func_no, @@ -1121,11 +1121,11 @@ static int vntb_epf_link_enable(struct ntb_dev *ntb, static u32 vntb_epf_spad_read(struct ntb_dev *ndev, int idx) { struct epf_ntb *ntb = ntb_ndev(ndev); - int off = ntb->reg->spad_offset, ct = ntb->reg->spad_count * 4; + int off = ntb->reg->spad_offset, ct = ntb->reg->spad_count * sizeof(u32); u32 val; void __iomem *base = ntb->reg; - val = readl(base + off + ct + idx * 4); + val = readl(base + off + ct + idx * sizeof(u32)); return val; } @@ -1133,10 +1133,10 @@ static int vntb_epf_spad_write(struct ntb_dev *ndev, int idx, u32 val) { struct epf_ntb *ntb = ntb_ndev(ndev); struct epf_ntb_ctrl *ctrl = ntb->reg; - int off = ctrl->spad_offset, ct = ctrl->spad_count * 4; + int off = ctrl->spad_offset, ct = ctrl->spad_count * sizeof(u32); void __iomem *base = ntb->reg; - writel(val, base + off + ct + idx * 4); + writel(val, base + off + ct + idx * sizeof(u32)); return 0; } @@ -1148,7 +1148,7 @@ static u32 vntb_epf_peer_spad_read(struct ntb_dev *ndev, int pidx, int idx) void __iomem *base = ntb->reg; u32 val; - val = readl(base + off + idx * 4); + val = readl(base + off + idx * sizeof(u32)); return val; } @@ -1159,7 +1159,7 @@ static int vntb_epf_peer_spad_write(struct ntb_dev *ndev, int pidx, int idx, u32 int off = ctrl->spad_offset; void __iomem *base = ntb->reg; - writel(val, base + off + idx * 4); + writel(val, base + off + idx * sizeof(u32)); return 0; } From patchwork Wed Nov 2 14:10:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 1698179 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.a=rsa-sha256 header.s=selector2 header.b=bKtPlPBr; dkim-atps=neutral Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4N2TMc6rCPz23lK for ; Thu, 3 Nov 2022 01:11:24 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231475AbiKBOLW (ORCPT ); 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Received: from HE1PR0401MB2331.eurprd04.prod.outlook.com (2603:10a6:3:24::22) by DB9PR04MB8234.eurprd04.prod.outlook.com (2603:10a6:10:25d::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5791.20; Wed, 2 Nov 2022 14:10:56 +0000 Received: from HE1PR0401MB2331.eurprd04.prod.outlook.com ([fe80::44bb:8387:8f4b:6a28]) by HE1PR0401MB2331.eurprd04.prod.outlook.com ([fe80::44bb:8387:8f4b:6a28%11]) with mapi id 15.20.5769.021; Wed, 2 Nov 2022 14:10:56 +0000 From: Frank Li To: mani@kernel.org Cc: Frank.Li@nxp.com, allenbh@gmail.com, bhelgaas@google.com, dave.jiang@intel.com, helgaas@kernel.org, imx@lists.linux.dev, jdmason@kudzu.us, kw@linux.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, lpieralisi@kernel.org, ntb@lists.linux.dev Subject: [PATCH v16 6/7] PCI: endpoint: pci-epf-vntb: fix sparse build warning at epf_db Date: Wed, 2 Nov 2022 10:10:13 -0400 Message-Id: <20221102141014.1025893-7-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221102141014.1025893-1-Frank.Li@nxp.com> References: <20221102141014.1025893-1-Frank.Li@nxp.com> X-ClientProxiedBy: SJ0PR05CA0210.namprd05.prod.outlook.com (2603:10b6:a03:330::35) To HE1PR0401MB2331.eurprd04.prod.outlook.com (2603:10a6:3:24::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: HE1PR0401MB2331:EE_|DB9PR04MB8234:EE_ X-MS-Office365-Filtering-Correlation-Id: 0fd3155d-3f46-4887-c17a-08dabcdc0f4d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Frank Li --- drivers/pci/endpoint/functions/pci-epf-vntb.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c index 54616281da9e..f896846ed970 100644 --- a/drivers/pci/endpoint/functions/pci-epf-vntb.c +++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c @@ -136,7 +136,7 @@ struct epf_ntb { struct epf_ntb_ctrl *reg; - void __iomem *epf_db; + u32 *epf_db; phys_addr_t vpci_mw_phy[MAX_MW]; void __iomem *vpci_mw_addr[MAX_MW]; @@ -257,12 +257,10 @@ static void epf_ntb_cmd_handler(struct work_struct *work) ntb = container_of(work, struct epf_ntb, cmd_handler.work); for (i = 1; i < ntb->db_count; i++) { - if (readl(ntb->epf_db + i * sizeof(u32))) { - if (readl(ntb->epf_db + i * sizeof(u32))) - ntb->db |= 1 << (i - 1); - + if (ntb->epf_db[i]) { + ntb->db |= 1 << (i - 1); ntb_db_event(&ntb->ntb, i); - writel(0, ntb->epf_db + i * sizeof(u32)); + ntb->epf_db[i] = 0; 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Received: from HE1PR0401MB2331.eurprd04.prod.outlook.com (2603:10a6:3:24::22) by DB9PR04MB8234.eurprd04.prod.outlook.com (2603:10a6:10:25d::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5791.20; Wed, 2 Nov 2022 14:11:01 +0000 Received: from HE1PR0401MB2331.eurprd04.prod.outlook.com ([fe80::44bb:8387:8f4b:6a28]) by HE1PR0401MB2331.eurprd04.prod.outlook.com ([fe80::44bb:8387:8f4b:6a28%11]) with mapi id 15.20.5769.021; Wed, 2 Nov 2022 14:11:01 +0000 From: Frank Li To: mani@kernel.org Cc: Frank.Li@nxp.com, allenbh@gmail.com, bhelgaas@google.com, dave.jiang@intel.com, helgaas@kernel.org, imx@lists.linux.dev, jdmason@kudzu.us, kw@linux.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, lpieralisi@kernel.org, ntb@lists.linux.dev Subject: [PATCH v16 7/7] PCI: endpoint: pci-epf-vntb: fix sparse build warning at ntb->reg Date: Wed, 2 Nov 2022 10:10:14 -0400 Message-Id: <20221102141014.1025893-8-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221102141014.1025893-1-Frank.Li@nxp.com> References: <20221102141014.1025893-1-Frank.Li@nxp.com> X-ClientProxiedBy: SJ0PR05CA0210.namprd05.prod.outlook.com (2603:10b6:a03:330::35) To HE1PR0401MB2331.eurprd04.prod.outlook.com (2603:10a6:3:24::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: HE1PR0401MB2331:EE_|DB9PR04MB8234:EE_ X-MS-Office365-Filtering-Correlation-Id: c91f7991-ffbb-4382-e2e8-08dabcdc1205 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Reported-by: kernel test robot Signed-off-by: Frank Li Acked-by: Manivannan Sadhasivam --- drivers/pci/endpoint/functions/pci-epf-vntb.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c index f896846ed970..04698e7995a5 100644 --- a/drivers/pci/endpoint/functions/pci-epf-vntb.c +++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c @@ -1121,7 +1121,7 @@ static u32 vntb_epf_spad_read(struct ntb_dev *ndev, int idx) struct epf_ntb *ntb = ntb_ndev(ndev); int off = ntb->reg->spad_offset, ct = ntb->reg->spad_count * sizeof(u32); u32 val; - void __iomem *base = ntb->reg; + void __iomem *base = (void __iomem *)ntb->reg; val = readl(base + off + ct + idx * sizeof(u32)); return val; @@ -1132,7 +1132,7 @@ static int vntb_epf_spad_write(struct ntb_dev *ndev, int idx, u32 val) struct epf_ntb *ntb = ntb_ndev(ndev); struct epf_ntb_ctrl *ctrl = ntb->reg; int off = ctrl->spad_offset, ct = ctrl->spad_count * sizeof(u32); - void __iomem *base = ntb->reg; + void __iomem *base = (void __iomem *)ntb->reg; writel(val, base + off + ct + idx * sizeof(u32)); return 0; @@ -1143,7 +1143,7 @@ static u32 vntb_epf_peer_spad_read(struct ntb_dev *ndev, int pidx, int idx) struct epf_ntb *ntb = ntb_ndev(ndev); struct epf_ntb_ctrl *ctrl = ntb->reg; int off = ctrl->spad_offset; - void __iomem *base = ntb->reg; + void __iomem *base = (void __iomem *)ntb->reg; u32 val; val = readl(base + off + idx * sizeof(u32)); @@ -1155,7 +1155,7 @@ static int vntb_epf_peer_spad_write(struct ntb_dev *ndev, int pidx, int idx, u32 struct epf_ntb *ntb = ntb_ndev(ndev); struct epf_ntb_ctrl *ctrl = ntb->reg; int off = ctrl->spad_offset; - void __iomem *base = ntb->reg; + void __iomem *base = (void __iomem *)ntb->reg; writel(val, base + off + idx * sizeof(u32)); return 0;