From patchwork Tue Dec 12 05:17:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srujana Challa X-Patchwork-Id: 753194 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="KipkjXy4" Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 32115D2; Mon, 11 Dec 2023 21:18:07 -0800 (PST) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 3BBK7Q4e009898; Mon, 11 Dec 2023 21:17:58 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= pfpt0220; bh=evwA9j2k9E3xJCmuCs0aUK4cHmPNE0JJmXr8SHH0M4M=; b=Kip kjXy4CAGGWSvEtTNtHK1/lLM3RYLN0yemc5nRP4e+nsDOTTv6iLbREblYRx/mNA5 kh52CSgfp4ZCqwruRaRXQmueSqVUWzHoltP2/faFMZDPdzuzOFB4LxhMtNSDBgH6 bXdPESYkZvPwFWcbHmHqmfcCnbccdP4F19Io5iwJCESi6yC2UZizR5pzWwUvCJJK 2Q5JVipHH39q/rzW+QLiCMKPSD7vJqjO41sC6jH+E7BxbySfktVGa85NXqfkdOlL ebsDNHuf4Y9E61nUFfOMtebKmcGyN+a0XvWikAy+pzvhYDBQfLM/6XgWO535wT/u fJVzNHyzCPIO4q3aICQ== Received: from dc5-exch01.marvell.com ([199.233.59.181]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3uwyp4kp5p-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Mon, 11 Dec 2023 21:17:57 -0800 (PST) Received: from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Mon, 11 Dec 2023 21:17:55 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Mon, 11 Dec 2023 21:17:55 -0800 Received: from localhost.localdomain (unknown [10.28.36.175]) by maili.marvell.com (Postfix) with ESMTP id 41F5E3F709C; Mon, 11 Dec 2023 21:17:50 -0800 (PST) From: Srujana Challa To: , , CC: , , , , , , , , , , , , , , , , Subject: [PATCH net-next v2 03/10] crypto: octeontx2: add devlink option to set max_rxc_icb_cnt Date: Tue, 12 Dec 2023 10:47:23 +0530 Message-ID: <20231212051730.386088-4-schalla@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231212051730.386088-1-schalla@marvell.com> References: <20231212051730.386088-1-schalla@marvell.com> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: 75IOVFPXg39z5v4rh4s_qXEoGY-BNcW6 X-Proofpoint-GUID: 75IOVFPXg39z5v4rh4s_qXEoGY-BNcW6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_02,2023-12-07_01,2023-05-22_02 On CN10KA B0/CN10KB HW, maximum icb entries that RX can use, can be configured through HW CSR. This patch adds option to set max icb entries through devlink parameter and also sets max_rxc_icb_cnt to 0xc0 as default to match inline inbound peak performance compared to other chip versions. This patch also documents the devlink parameter under Documentation/crypto/device_drivers. Signed-off-by: Srujana Challa --- Documentation/crypto/device_drivers/index.rst | 9 ++++ .../crypto/device_drivers/octeontx2.rst | 25 +++++++++++ Documentation/crypto/index.rst | 1 + .../marvell/octeontx2/otx2_cpt_common.h | 7 +++ .../marvell/octeontx2/otx2_cpt_devlink.c | 45 +++++++++++++++++++ .../net/ethernet/marvell/octeontx2/af/rvu.h | 20 +++++++++ .../ethernet/marvell/octeontx2/af/rvu_cpt.c | 14 ++++++ .../ethernet/marvell/octeontx2/af/rvu_reg.h | 1 + 8 files changed, 122 insertions(+) create mode 100644 Documentation/crypto/device_drivers/index.rst create mode 100644 Documentation/crypto/device_drivers/octeontx2.rst diff --git a/Documentation/crypto/device_drivers/index.rst b/Documentation/crypto/device_drivers/index.rst new file mode 100644 index 000000000000..c81d311ac61b --- /dev/null +++ b/Documentation/crypto/device_drivers/index.rst @@ -0,0 +1,9 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Hardware Device Driver Specific Documentation +--------------------------------------------- + +.. toctree:: + :maxdepth: 1 + + octeontx2 diff --git a/Documentation/crypto/device_drivers/octeontx2.rst b/Documentation/crypto/device_drivers/octeontx2.rst new file mode 100644 index 000000000000..0481bdcd77e9 --- /dev/null +++ b/Documentation/crypto/device_drivers/octeontx2.rst @@ -0,0 +1,25 @@ +.. SPDX-License-Identifier: GPL-2.0 + +========================= +octeontx2 devlink support +========================= + +This document describes the devlink features implemented by the ``octeontx2 CPT`` +device drivers. + +Parameters +========== + +The ``octeontx2`` driver implements the following driver-specific parameters. + +.. list-table:: Driver-specific parameters implemented + :widths: 5 5 5 85 + + * - Name + - Type + - Mode + - Description + * - ``max_rxc_icb_cnt`` + - u16 + - runtime + - Configures maximum icb entries that HW can use in RX path. diff --git a/Documentation/crypto/index.rst b/Documentation/crypto/index.rst index da5d5ad2bdf3..945ca1505ad9 100644 --- a/Documentation/crypto/index.rst +++ b/Documentation/crypto/index.rst @@ -28,3 +28,4 @@ for cryptographic use cases, as well as programming examples. api api-samples descore-readme + device_drivers/index diff --git a/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h b/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h index 284bbdef06ca..be90b6cc3b71 100644 --- a/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h +++ b/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h @@ -186,6 +186,13 @@ static inline void otx2_cpt_set_hw_caps(struct pci_dev *pdev, } } +static inline bool cpt_feature_rxc_icb_cnt(struct pci_dev *pdev) +{ + if (!is_dev_otx2(pdev) && !is_dev_cn10ka_ax(pdev)) + return true; + + return false; +} int otx2_cpt_send_ready_msg(struct otx2_mbox *mbox, struct pci_dev *pdev); int otx2_cpt_send_mbox_msg(struct otx2_mbox *mbox, struct pci_dev *pdev); diff --git a/drivers/crypto/marvell/octeontx2/otx2_cpt_devlink.c b/drivers/crypto/marvell/octeontx2/otx2_cpt_devlink.c index a2aba0b0d68a..16000dd19011 100644 --- a/drivers/crypto/marvell/octeontx2/otx2_cpt_devlink.c +++ b/drivers/crypto/marvell/octeontx2/otx2_cpt_devlink.c @@ -32,10 +32,49 @@ static int otx2_cpt_dl_uc_info(struct devlink *dl, u32 id, return 0; } +static int otx2_cpt_dl_max_rxc_icb_cnt(struct devlink *dl, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct otx2_cpt_devlink *cpt_dl = devlink_priv(dl); + struct otx2_cptpf_dev *cptpf = cpt_dl->cptpf; + struct pci_dev *pdev = cptpf->pdev; + u64 reg_val = 0; + + otx2_cpt_read_af_reg(&cptpf->afpf_mbox, pdev, CPT_AF_RXC_CFG1, ®_val, + BLKADDR_CPT0); + ctx->val.vu16 = (reg_val >> 32) & 0x1FF; + + return 0; +} + +static int otx2_cpt_dl_max_rxc_icb_cnt_set(struct devlink *dl, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct otx2_cpt_devlink *cpt_dl = devlink_priv(dl); + struct otx2_cptpf_dev *cptpf = cpt_dl->cptpf; + struct pci_dev *pdev = cptpf->pdev; + u64 reg_val = 0; + + if (cptpf->enabled_vfs != 0) + return -EPERM; + + if (cpt_feature_rxc_icb_cnt(pdev)) { + otx2_cpt_read_af_reg(&cptpf->afpf_mbox, pdev, CPT_AF_RXC_CFG1, + ®_val, BLKADDR_CPT0); + reg_val &= ~(0x1FFULL << 32); + reg_val |= (u64)ctx->val.vu16 << 32; + return otx2_cpt_write_af_reg(&cptpf->afpf_mbox, pdev, + CPT_AF_RXC_CFG1, reg_val, + BLKADDR_CPT0); + } + return 0; +} + enum otx2_cpt_dl_param_id { OTX2_CPT_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, OTX2_CPT_DEVLINK_PARAM_ID_EGRP_CREATE, OTX2_CPT_DEVLINK_PARAM_ID_EGRP_DELETE, + OTX2_CPT_DEVLINK_PARAM_ID_MAX_RXC_ICB_CNT, }; static const struct devlink_param otx2_cpt_dl_params[] = { @@ -49,6 +88,12 @@ static const struct devlink_param otx2_cpt_dl_params[] = { BIT(DEVLINK_PARAM_CMODE_RUNTIME), otx2_cpt_dl_uc_info, otx2_cpt_dl_egrp_delete, NULL), + DEVLINK_PARAM_DRIVER(OTX2_CPT_DEVLINK_PARAM_ID_MAX_RXC_ICB_CNT, + "max_rxc_icb_cnt", DEVLINK_PARAM_TYPE_U16, + BIT(DEVLINK_PARAM_CMODE_RUNTIME), + otx2_cpt_dl_max_rxc_icb_cnt, + otx2_cpt_dl_max_rxc_icb_cnt_set, + NULL), }; static int otx2_cpt_dl_info_firmware_version_put(struct devlink_info_req *req, diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h index c4d999ef5ab4..afc9a1c77513 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h @@ -646,6 +646,26 @@ static inline bool is_cnf10ka_a0(struct rvu *rvu) return false; } +static inline bool is_cn10ka_a0(struct rvu *rvu) +{ + struct pci_dev *pdev = rvu->pdev; + + if (pdev->subsystem_device == PCI_SUBSYS_DEVID_CN10K_A && + (pdev->revision & 0x0F) == 0x0) + return true; + return false; +} + +static inline bool is_cn10ka_a1(struct rvu *rvu) +{ + struct pci_dev *pdev = rvu->pdev; + + if (pdev->subsystem_device == PCI_SUBSYS_DEVID_CN10K_A && + (pdev->revision & 0x0F) == 0x1) + return true; + return false; +} + static inline bool is_rvu_npc_hash_extract_en(struct rvu *rvu) { u64 npc_const3; diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c index f047185f38e0..f36a5ee55ac3 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c @@ -673,6 +673,7 @@ static bool is_valid_offset(struct rvu *rvu, struct cpt_rd_wr_reg_msg *req) case CPT_AF_BLK_RST: case CPT_AF_CONSTANTS1: case CPT_AF_CTX_FLUSH_TIMER: + case CPT_AF_RXC_CFG1: return true; } @@ -1213,8 +1214,21 @@ int rvu_cpt_ctx_flush(struct rvu *rvu, u16 pcifunc) int rvu_cpt_init(struct rvu *rvu) { + u64 reg_val; + /* Retrieve CPT PF number */ rvu->cpt_pf_num = get_cpt_pf_num(rvu); + if (is_block_implemented(rvu->hw, BLKADDR_CPT0) && + (!is_rvu_otx2(rvu) && !is_cn10ka_a0(rvu) && !is_cn10ka_a1(rvu))) { + /* Set CPT_AF_RXC_CFG1:max_rxc_icb_cnt to 0xc0 to not effect + * inline inbound peak performance + */ + reg_val = rvu_read64(rvu, BLKADDR_CPT0, CPT_AF_RXC_CFG1); + reg_val &= ~(0x1FFULL << 32); + reg_val |= 0xC0ULL << 32; + rvu_write64(rvu, BLKADDR_CPT0, CPT_AF_RXC_CFG1, reg_val); + } + spin_lock_init(&rvu->cpt_intr_lock); return 0; diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h index b42e631e52d0..b3f1442d5196 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h @@ -532,6 +532,7 @@ #define CPT_AF_CTX_PSH_PC (0x49450ull) #define CPT_AF_CTX_PSH_LATENCY_PC (0x49458ull) #define CPT_AF_CTX_CAM_DATA(a) (0x49800ull | (u64)(a) << 3) +#define CPT_AF_RXC_CFG1 (0x50000ull) #define CPT_AF_RXC_TIME (0x50010ull) #define CPT_AF_RXC_TIME_CFG (0x50018ull) #define CPT_AF_RXC_DFRG (0x50020ull)