From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 6160745BFE; Mon, 28 Oct 2024 12:02:33 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 4DE4C40E2A; Mon, 28 Oct 2024 12:02:33 +0100 (CET) Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by mails.dpdk.org (Postfix) with ESMTP id 40CB340E41 for ; Mon, 28 Oct 2024 12:01:52 +0100 (CET) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 49SA0lhE010719; Mon, 28 Oct 2024 04:01:50 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pfpt0220; bh=N 98gnfCqZSBU08Wn7YY4UaMXywS6UVFLX7VTk/mE4ag=; b=Wlzsq+0V70y21GU6F gfzoj56cy83YjC3W5iWwHJmecG5G//s0QqWmzqsKY4HNLqq6r0Jmdf7lsGG+r8Wu OUv6tLwAcOrem0K4UcjoPtnxczVk/WeSp9eMUulIdL2AEjHYmVD25WbdbgtZLHar FBD2dwgTuNGuw+4q21BrgDvWlEFbFrIhHDc/kEuy6sIXtJAfW8X3AtYpePNpOw6X 7j+CSoWFIA/8/pgoKQ3qMMEKbgx+CDykqCADKb9YmSnxnWtZ3op/Q+TUqLAOmo/Y 6iQtUz+2XCmraRwmKosLKYNAugA1zaLd4yY7aZR8WrJPBdaRuKrN0DGNys4Zdcnb r5bNA== Received: from dc5-exch05.marvell.com ([199.233.59.128]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 42j7v2055q-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 28 Oct 2024 04:01:49 -0700 (PDT) Received: from DC5-EXCH05.marvell.com (10.69.176.209) by DC5-EXCH05.marvell.com (10.69.176.209) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Mon, 28 Oct 2024 04:01:48 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH05.marvell.com (10.69.176.209) with Microsoft SMTP Server id 15.2.1544.4 via Frontend Transport; Mon, 28 Oct 2024 04:01:48 -0700 Received: from localhost.localdomain (unknown [10.28.36.102]) by maili.marvell.com (Postfix) with ESMTP id F2B935C68E6; Mon, 28 Oct 2024 04:01:45 -0700 (PDT) From: Akhil Goyal To: CC: , , , , , , , , Akhil Goyal Subject: [PATCH v6 8/9] raw/cnxk_rvu_lf: support getting BAR addresses Date: Mon, 28 Oct 2024 16:31:14 +0530 Message-ID: <20241028110115.1070655-9-gakhil@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241028110115.1070655-1-gakhil@marvell.com> References: <20241024131759.3337333-1-gakhil@marvell.com> <20241028110115.1070655-1-gakhil@marvell.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-GUID: ISeche-fAicB9VYPO0AfdOyCIGMYAmQ- X-Proofpoint-ORIG-GUID: ISeche-fAicB9VYPO0AfdOyCIGMYAmQ- X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Added rte_pmd_rvu_lf_bar_get() API to get BAR address for out of tree drivers to configure hardware. Signed-off-by: Akhil Goyal --- doc/guides/rawdevs/cnxk_rvu_lf.rst | 8 +++++++ drivers/raw/cnxk_rvu_lf/cnxk_rvu_lf.c | 24 ++++++++++++++++++++ drivers/raw/cnxk_rvu_lf/cnxk_rvu_lf_driver.h | 18 +++++++++++++++ drivers/raw/cnxk_rvu_lf/version.map | 1 + 4 files changed, 51 insertions(+) diff --git a/doc/guides/rawdevs/cnxk_rvu_lf.rst b/doc/guides/rawdevs/cnxk_rvu_lf.rst index 0854c88ac9..708c9410fd 100644 --- a/doc/guides/rawdevs/cnxk_rvu_lf.rst +++ b/doc/guides/rawdevs/cnxk_rvu_lf.rst @@ -22,6 +22,7 @@ The RVU LF device implements following features in the rawdev API: - Register/unregister mailbox callbacks for the other side to process mailboxes. - Set mailbox message ID range to be used by the driver. - Process mailbox messages. +- Get BAR Addresses for the out of tree drivers to configure registers. Limitations ----------- @@ -79,3 +80,10 @@ It accepts an opaque pointer of a request and its size which can be defined by u and provides an opaque pointer for a response and its length. PF and VF out of tree driver can define its own request and response based on the message id of the mailbox. + +Get BAR addresses +----------------- + +Out of tree drivers can retrieve PCI BAR addresses of the device using the API +``rte_pmd_rvu_lf_bar_get()``. This helps PF/VF drivers to configure the +registers of the hardware device. diff --git a/drivers/raw/cnxk_rvu_lf/cnxk_rvu_lf.c b/drivers/raw/cnxk_rvu_lf/cnxk_rvu_lf.c index 156b9460c1..3a3971ecd3 100644 --- a/drivers/raw/cnxk_rvu_lf/cnxk_rvu_lf.c +++ b/drivers/raw/cnxk_rvu_lf/cnxk_rvu_lf.c @@ -103,6 +103,30 @@ rte_pmd_rvu_lf_irq_unregister(uint8_t dev_id, unsigned int irq, return roc_rvu_lf_irq_unregister(roc_rvu_lf, irq, (roc_rvu_lf_intr_cb_fn)cb, data); } +int +rte_pmd_rvu_lf_bar_get(uint8_t dev_id, uint8_t bar_num, size_t *va, size_t *mask) +{ + struct roc_rvu_lf *roc_rvu_lf; + struct rte_rawdev *rawdev; + + rawdev = rte_rawdev_pmd_get_dev(dev_id); + if (rawdev == NULL) + return -EINVAL; + + roc_rvu_lf = (struct roc_rvu_lf *)rawdev->dev_private; + + if (bar_num > PCI_MAX_RESOURCE || + (roc_rvu_lf->pci_dev->mem_resource[bar_num].addr == NULL)) { + *va = 0; + *mask = 0; + return -ENOTSUP; + } + *va = (size_t)(roc_rvu_lf->pci_dev->mem_resource[bar_num].addr); + *mask = (size_t)(roc_rvu_lf->pci_dev->mem_resource[bar_num].len - 1); + + return 0; +} + uint16_t rte_pmd_rvu_lf_npa_pf_func_get(void) { diff --git a/drivers/raw/cnxk_rvu_lf/cnxk_rvu_lf_driver.h b/drivers/raw/cnxk_rvu_lf/cnxk_rvu_lf_driver.h index 9c4ede2602..e405831ce1 100644 --- a/drivers/raw/cnxk_rvu_lf/cnxk_rvu_lf_driver.h +++ b/drivers/raw/cnxk_rvu_lf/cnxk_rvu_lf_driver.h @@ -193,6 +193,24 @@ __rte_internal int rte_pmd_rvu_lf_msg_process(uint8_t dev_id, uint16_t vf, uint16_t msg_id, void *req, uint16_t req_len, void *rsp, uint16_t rsp_len); +/** + * Get BAR addresses for the RVU LF device. + * + * @param dev_id + * device id of RVU LF device + * @param bar_num + * BAR number for which address is required + * @param[out] va + * Virtual address of the BAR. 0 if not mapped + * @param[out] mask + * BAR address mask, 0 if not mapped + * + * @return + * Returns 0 on success, negative error code otherwise + */ +__rte_internal +int rte_pmd_rvu_lf_bar_get(uint8_t dev_id, uint8_t bar_num, size_t *va, size_t *mask); + #ifdef __cplusplus } #endif diff --git a/drivers/raw/cnxk_rvu_lf/version.map b/drivers/raw/cnxk_rvu_lf/version.map index aa974f629e..012f05d1e4 100644 --- a/drivers/raw/cnxk_rvu_lf/version.map +++ b/drivers/raw/cnxk_rvu_lf/version.map @@ -1,6 +1,7 @@ INTERNAL { global: + rte_pmd_rvu_lf_bar_get; rte_pmd_rvu_lf_irq_register; rte_pmd_rvu_lf_irq_unregister; rte_pmd_rvu_lf_msg_handler_register; -- 2.25.1