From patchwork Thu Feb 11 01:46:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geetha sowjanya X-Patchwork-Id: 12082169 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C51CCC433E0 for ; Thu, 11 Feb 2021 01:52:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 88F0E64E3B for ; Thu, 11 Feb 2021 01:52:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229853AbhBKBve (ORCPT ); Wed, 10 Feb 2021 20:51:34 -0500 Received: from mx0b-0016f401.pphosted.com ([67.231.156.173]:7876 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230031AbhBKBsk (ORCPT ); Wed, 10 Feb 2021 20:48:40 -0500 Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 11B1kgKu000423; Wed, 10 Feb 2021 17:47:55 -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-type; s=pfpt0220; bh=SWzsCPtId+OtjzuBpoN/S2EAwPtZ+i6QKdk/jwSp1AA=; b=ZNkS+9P/ZKMlDCT6EOAcxSbVwJfuBIfzRjY3QKulUx875Nx3rDaBhCW2ALduRJjpTE3c QPDVuMwFVOALtswICOdM9VYB4wKypeTPa7aFL1pjqB4o6G/02xUywks7Q7ed06SRPpt5 16gpohSLhiZtWK/eOoqhzlSipdTFjetLFoqbumGa0oQrMeGbJyWmM/Vx0J+CzmJU4E9S Dt8zeiBY5ayrbE2G4lxaXCUrOiIFS1PBS44Z9WVeo5TxEfY7w1OWutQ4d9NzwXHxu63H THp6ImfxrHAnY/kh6HXhmnrTQjgWBddmRyk+rkPm1C/zxlrvEHb/2KfelK1M0FX5SDup ug== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0b-0016f401.pphosted.com with ESMTP id 36hugqdhcn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Wed, 10 Feb 2021 17:47:54 -0800 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 10 Feb 2021 17:47:52 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 10 Feb 2021 17:47:52 -0800 Received: from hyd1soter3.marvell.com (unknown [10.29.37.12]) by maili.marvell.com (Postfix) with ESMTP id 9BF7E3F703F; Wed, 10 Feb 2021 17:47:48 -0800 (PST) From: Geetha sowjanya To: , , CC: , , , , , , , , , , Geetha sowjanya Subject: [net-next v5 09/14] octeontx2-af: cn10k: Add support for programmable channels Date: Thu, 11 Feb 2021 07:16:26 +0530 Message-ID: <20210211014631.9578-10-gakula@marvell.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210211014631.9578-1-gakula@marvell.com> References: <20210211014631.9578-1-gakula@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369,18.0.737 definitions=2021-02-10_11:2021-02-10,2021-02-10 signatures=0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Subbaraya Sundeep NIX uses unique channel numbers to identify the packet sources/sinks like CGX,LBK and SDP. The channel numbers assigned to each block are hardwired in CN9xxx silicon. The fixed channel numbers in CN9xxx are: 0x0 | a << 8 | b - LBK(0..3)_CH(0..63) 0x0 | a << 8 - Reserved 0x700 | a - SDP_CH(0..255) 0x800 | a << 8 | b << 4 | c - CGX(0..7)_LMAC(0..3)_CH(0..15) All the channels in the above fixed enumerator(with maximum number of blocks) are not required since some chips have less number of blocks. For CN10K silicon the channel numbers need to be programmed by software in each block with the base channel number and range of channels. This patch calculates and assigns the channel numbers to efficiently distribute the channel number range(0-4095) among all the blocks. The assignment is made based on the actual number of blocks present and also contiguously leaving no holes. The channel numbers remaining after the math are used as new CPT replay channels present in CN10K. Also since channel numbers are not fixed the transmit channel link number needed by AF consumers is calculated by AF and sent along with nix_lf_alloc mailbox response. Signed-off-by: Subbaraya Sundeep Signed-off-by: Geetha sowjanya Signed-off-by: Sunil Goutham --- MAINTAINERS | 1 + .../ethernet/marvell/octeontx2/af/Makefile | 2 +- .../net/ethernet/marvell/octeontx2/af/cgx.c | 14 + .../net/ethernet/marvell/octeontx2/af/cgx.h | 2 + .../ethernet/marvell/octeontx2/af/common.h | 3 + .../net/ethernet/marvell/octeontx2/af/rpm.h | 6 + .../net/ethernet/marvell/octeontx2/af/rvu.c | 8 +- .../net/ethernet/marvell/octeontx2/af/rvu.h | 44 +++ .../ethernet/marvell/octeontx2/af/rvu_cn10k.c | 261 ++++++++++++++++++ .../ethernet/marvell/octeontx2/af/rvu_nix.c | 16 +- .../ethernet/marvell/octeontx2/af/rvu_npc.c | 4 +- .../ethernet/marvell/octeontx2/af/rvu_reg.h | 16 ++ 12 files changed, 360 insertions(+), 17 deletions(-) create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c diff --git a/MAINTAINERS b/MAINTAINERS index 0c39376f58d7..1a4f56d31074 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10711,6 +10711,7 @@ M: Linu Cherian M: Geetha sowjanya M: Jerin Jacob M: hariprasad +M: Subbaraya Sundeep L: netdev@vger.kernel.org S: Supported F: Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst diff --git a/drivers/net/ethernet/marvell/octeontx2/af/Makefile b/drivers/net/ethernet/marvell/octeontx2/af/Makefile index a6afbdeeaf30..621cc5bf106a 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/Makefile +++ b/drivers/net/ethernet/marvell/octeontx2/af/Makefile @@ -10,4 +10,4 @@ obj-$(CONFIG_OCTEONTX2_AF) += octeontx2_af.o octeontx2_mbox-y := mbox.o rvu_trace.o octeontx2_af-y := cgx.o rvu.o rvu_cgx.o rvu_npa.o rvu_nix.o \ rvu_reg.o rvu_npc.o rvu_debugfs.o ptp.o rvu_npc_fs.o \ - rvu_cpt.o rvu_devlink.o rpm.o + rvu_cpt.o rvu_devlink.o rpm.o rvu_cn10k.o diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c index acbea44e369b..3419dd3279d9 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c @@ -122,6 +122,20 @@ void *cgx_get_pdata(int cgx_id) return NULL; } +void cgx_lmac_write(int cgx_id, int lmac_id, u64 offset, u64 val) +{ + struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + + cgx_write(cgx_dev, lmac_id, offset, val); +} + +u64 cgx_lmac_read(int cgx_id, int lmac_id, u64 offset) +{ + struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + + return cgx_read(cgx_dev, lmac_id, offset); +} + int cgx_get_cgxid(void *cgxd) { struct cgx *cgx = cgxd; diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h index 7c76fd09ca61..7589721a82d7 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h @@ -152,4 +152,6 @@ struct mac_ops *get_mac_ops(void *cgxd); int cgx_get_nr_lmacs(void *cgxd); u8 cgx_get_lmacid(void *cgxd, u8 lmac_index); unsigned long cgx_get_lmac_bmap(void *cgxd); +void cgx_lmac_write(int cgx_id, int lmac_id, u64 offset, u64 val); +u64 cgx_lmac_read(int cgx_id, int lmac_id, u64 offset); #endif /* CGX_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/common.h b/drivers/net/ethernet/marvell/octeontx2/af/common.h index 17f6f42f4453..0100e7044619 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/common.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/common.h @@ -191,6 +191,9 @@ enum nix_scheduler { #define NIX_LINK_LBK(a) (12 + (a)) #define NIX_CHAN_CGX_LMAC_CHX(a, b, c) (0x800 + 0x100 * (a) + 0x10 * (b) + (c)) #define NIX_CHAN_LBK_CHX(a, b) (0 + 0x100 * (a) + (b)) +#define NIX_CHAN_SDP_CH_START (0x700ull) + +#define SDP_CHANNELS 256 /* NIX LSO format indices. * As of now TSO is the only one using, so statically assigning indices. diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rpm.h b/drivers/net/ethernet/marvell/octeontx2/af/rpm.h index 7f45c1c645bf..1779e8b689e8 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rpm.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rpm.h @@ -8,6 +8,8 @@ #ifndef RPM_H #define RPM_H +#include + /* PCI device IDs */ #define PCI_DEVID_CN10K_RPM 0xA060 @@ -15,6 +17,10 @@ #define RPMX_CMRX_SW_INT 0x180 #define RPMX_CMRX_SW_INT_W1S 0x188 #define RPMX_CMRX_SW_INT_ENA_W1S 0x198 +#define RPMX_CMRX_LINK_CFG 0x1070 + +#define RPMX_CMRX_LINK_RANGE_MASK GENMASK_ULL(19, 16) +#define RPMX_CMRX_LINK_BASE_MASK GENMASK_ULL(11, 0) #define RPM_LMAC_FWI 0xa diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c index 1729a2ad093e..54844084dd1b 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c @@ -1006,6 +1006,10 @@ static int rvu_setup_hw_resources(struct rvu *rvu) rvu_scan_block(rvu, block); } + err = rvu_set_channels_base(rvu); + if (err) + goto msix_err; + err = rvu_npc_init(rvu); if (err) goto npc_err; @@ -1025,6 +1029,8 @@ static int rvu_setup_hw_resources(struct rvu *rvu) if (err) goto nix_err; + rvu_program_channels(rvu); + return 0; nix_err: @@ -2721,8 +2727,6 @@ static void rvu_enable_afvf_intr(struct rvu *rvu) rvupf_write64(rvu, RVU_PF_VFME_INT_ENA_W1SX(1), INTR_MASK(vfs - 64)); } -#define PCI_DEVID_OCTEONTX2_LBK 0xA061 - int rvu_get_num_lbk_chans(void) { struct pci_dev *pdev; diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h index e9f6c0af11c8..bedccffa3f7f 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h @@ -19,9 +19,11 @@ #include "common.h" #include "mbox.h" #include "npc.h" +#include "rvu_reg.h" /* PCI device IDs */ #define PCI_DEVID_OCTEONTX2_RVU_AF 0xA065 +#define PCI_DEVID_OCTEONTX2_LBK 0xA061 /* Subsystem Device ID */ #define PCI_SUBSYS_DEVID_96XX 0xB200 @@ -305,6 +307,7 @@ struct hw_cap { bool nix_tx_link_bp; /* Can link backpressure TL queues ? */ bool nix_rx_multicast; /* Rx packet replication support */ bool per_pf_mbox_regs; /* PF mbox specified in per PF registers ? */ + bool programmable_chans; /* Channels programmable ? */ }; struct rvu_hwinfo { @@ -313,9 +316,14 @@ struct rvu_hwinfo { u16 max_vfs_per_pf; /* Max VFs that can be attached to a PF */ u8 cgx; u8 lmac_per_cgx; + u16 cgx_chan_base; /* CGX base channel number */ + u16 lbk_chan_base; /* LBK base channel number */ + u16 sdp_chan_base; /* SDP base channel number */ + u16 cpt_chan_base; /* CPT base channel number */ u8 cgx_links; u8 lbk_links; u8 sdp_links; + u8 cpt_links; /* Number of CPT links */ u8 npc_kpus; /* No of parser units */ u8 npc_pkinds; /* No of port kinds */ u8 npc_intfs; /* No of interfaces */ @@ -495,6 +503,38 @@ static inline bool is_rvu_otx2(struct rvu *rvu) midr == PCI_REVISION_ID_95XXMM); } +static inline u16 rvu_nix_chan_cgx(struct rvu *rvu, u8 cgxid, + u8 lmacid, u8 chan) +{ + u64 nix_const = rvu_read64(rvu, BLKADDR_NIX0, NIX_AF_CONST); + u16 cgx_chans = nix_const & 0xFFULL; + struct rvu_hwinfo *hw = rvu->hw; + + if (!hw->cap.programmable_chans) + return NIX_CHAN_CGX_LMAC_CHX(cgxid, lmacid, chan); + + return rvu->hw->cgx_chan_base + + (cgxid * hw->lmac_per_cgx + lmacid) * cgx_chans + chan; +} + +static inline u16 rvu_nix_chan_lbk(struct rvu *rvu, u8 lbkid, + u8 chan) +{ + u64 nix_const = rvu_read64(rvu, BLKADDR_NIX0, NIX_AF_CONST); + u16 lbk_chans = (nix_const >> 16) & 0xFFULL; + struct rvu_hwinfo *hw = rvu->hw; + + if (!hw->cap.programmable_chans) + return NIX_CHAN_LBK_CHX(lbkid, chan); + + return rvu->hw->lbk_chan_base + lbkid * lbk_chans + chan; +} + +static inline u16 rvu_nix_chan_cpt(struct rvu *rvu, u8 chan) +{ + return rvu->hw->cpt_chan_base + chan; +} + /* Function Prototypes * RVU */ @@ -636,6 +676,10 @@ bool is_mac_feature_supported(struct rvu *rvu, int pf, int feature); /* CPT APIs */ int rvu_cpt_lf_teardown(struct rvu *rvu, u16 pcifunc, int lf, int slot); +/* CN10K RVU */ +int rvu_set_channels_base(struct rvu *rvu); +void rvu_program_channels(struct rvu *rvu); + #ifdef CONFIG_DEBUG_FS void rvu_dbg_init(struct rvu *rvu); void rvu_dbg_exit(struct rvu *rvu); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c new file mode 100644 index 000000000000..7d9e71c6965f --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c @@ -0,0 +1,261 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RPM CN10K driver + * + * Copyright (C) 2020 Marvell. + */ + +#include +#include +#include "rvu.h" +#include "cgx.h" +#include "rvu_reg.h" + +int rvu_set_channels_base(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 cpt_chan_base; + u64 nix_const; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + if (blkaddr < 0) + return blkaddr; + + nix_const = rvu_read64(rvu, blkaddr, NIX_AF_CONST); + + hw->cgx = (nix_const >> 12) & 0xFULL; + hw->lmac_per_cgx = (nix_const >> 8) & 0xFULL; + hw->cgx_links = hw->cgx * hw->lmac_per_cgx; + hw->lbk_links = (nix_const >> 24) & 0xFULL; + hw->cpt_links = (nix_const >> 44) & 0xFULL; + hw->sdp_links = 1; + + hw->cgx_chan_base = NIX_CHAN_CGX_LMAC_CHX(0, 0, 0); + hw->lbk_chan_base = NIX_CHAN_LBK_CHX(0, 0); + hw->sdp_chan_base = NIX_CHAN_SDP_CH_START; + + /* No Programmable channels */ + if (!(nix_const & BIT_ULL(60))) + return 0; + + hw->cap.programmable_chans = true; + + /* If programmable channels are present then configure + * channels such that all channel numbers are contiguous + * leaving no holes. This way the new CPT channels can be + * accomodated. The order of channel numbers assigned is + * LBK, SDP, CGX and CPT. + */ + hw->sdp_chan_base = hw->lbk_chan_base + hw->lbk_links * + ((nix_const >> 16) & 0xFFULL); + hw->cgx_chan_base = hw->sdp_chan_base + hw->sdp_links * SDP_CHANNELS; + + cpt_chan_base = hw->cgx_chan_base + hw->cgx_links * + (nix_const & 0xFFULL); + + /* Out of 4096 channels start CPT from 2048 so + * that MSB for CPT channels is always set + */ + if (cpt_chan_base <= 0x800) { + hw->cpt_chan_base = 0x800; + } else { + dev_err(rvu->dev, + "CPT channels could not fit in the range 2048-4095\n"); + return -EINVAL; + } + + return 0; +} + +#define LBK_CONNECT_NIXX(a) (0x0 + (a)) + +static void __rvu_lbk_set_chans(struct rvu *rvu, void __iomem *base, + u64 offset, int lbkid, u16 chans) +{ + struct rvu_hwinfo *hw = rvu->hw; + u64 cfg; + + cfg = readq(base + offset); + cfg &= ~(LBK_LINK_CFG_RANGE_MASK | + LBK_LINK_CFG_ID_MASK | LBK_LINK_CFG_BASE_MASK); + cfg |= FIELD_PREP(LBK_LINK_CFG_RANGE_MASK, ilog2(chans)); + cfg |= FIELD_PREP(LBK_LINK_CFG_ID_MASK, lbkid); + cfg |= FIELD_PREP(LBK_LINK_CFG_BASE_MASK, hw->lbk_chan_base); + + writeq(cfg, base + offset); +} + +static void rvu_lbk_set_channels(struct rvu *rvu) +{ + struct pci_dev *pdev = NULL; + void __iomem *base; + u64 lbk_const; + u8 src, dst; + u16 chans; + + /* To loopback packets between multiple NIX blocks + * mutliple LBK blocks are needed. With two NIX blocks, + * four LBK blocks are needed and each LBK block + * source and destination are as follows: + * LBK0 - source NIX0 and destination NIX1 + * LBK1 - source NIX0 and destination NIX1 + * LBK2 - source NIX1 and destination NIX0 + * LBK3 - source NIX1 and destination NIX1 + * As per the HRM channel numbers should be programmed as: + * P2X and X2P of LBK0 as same + * P2X and X2P of LBK3 as same + * P2X of LBK1 and X2P of LBK2 as same + * P2X of LBK2 and X2P of LBK1 as same + */ + while (true) { + pdev = pci_get_device(PCI_VENDOR_ID_CAVIUM, + PCI_DEVID_OCTEONTX2_LBK, pdev); + if (!pdev) + return; + + base = pci_ioremap_bar(pdev, 0); + if (!base) + goto err_put; + + lbk_const = readq(base + LBK_CONST); + chans = FIELD_GET(LBK_CONST_CHANS, lbk_const); + dst = FIELD_GET(LBK_CONST_DST, lbk_const); + src = FIELD_GET(LBK_CONST_SRC, lbk_const); + + if (src == dst) { + if (src == LBK_CONNECT_NIXX(0)) { /* LBK0 */ + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_X2P, + 0, chans); + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_P2X, + 0, chans); + } else if (src == LBK_CONNECT_NIXX(1)) { /* LBK3 */ + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_X2P, + 1, chans); + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_P2X, + 1, chans); + } + } else { + if (src == LBK_CONNECT_NIXX(0)) { /* LBK1 */ + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_X2P, + 0, chans); + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_P2X, + 1, chans); + } else if (src == LBK_CONNECT_NIXX(1)) { /* LBK2 */ + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_X2P, + 1, chans); + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_P2X, + 0, chans); + } + } + iounmap(base); + } +err_put: + pci_dev_put(pdev); +} + +static void __rvu_nix_set_channels(struct rvu *rvu, int blkaddr) +{ + u64 nix_const = rvu_read64(rvu, blkaddr, NIX_AF_CONST); + u16 cgx_chans, lbk_chans, sdp_chans, cpt_chans; + struct rvu_hwinfo *hw = rvu->hw; + int link, nix_link = 0; + u16 start; + u64 cfg; + + cgx_chans = nix_const & 0xFFULL; + lbk_chans = (nix_const >> 16) & 0xFFULL; + sdp_chans = SDP_CHANNELS; + cpt_chans = (nix_const >> 32) & 0xFFFULL; + + start = hw->cgx_chan_base; + for (link = 0; link < hw->cgx_links; link++, nix_link++) { + cfg = rvu_read64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link)); + cfg &= ~(NIX_AF_LINKX_BASE_MASK | NIX_AF_LINKX_RANGE_MASK); + cfg |= FIELD_PREP(NIX_AF_LINKX_RANGE_MASK, ilog2(cgx_chans)); + cfg |= FIELD_PREP(NIX_AF_LINKX_BASE_MASK, start); + rvu_write64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link), cfg); + start += cgx_chans; + } + + start = hw->lbk_chan_base; + for (link = 0; link < hw->lbk_links; link++, nix_link++) { + cfg = rvu_read64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link)); + cfg &= ~(NIX_AF_LINKX_BASE_MASK | NIX_AF_LINKX_RANGE_MASK); + cfg |= FIELD_PREP(NIX_AF_LINKX_RANGE_MASK, ilog2(lbk_chans)); + cfg |= FIELD_PREP(NIX_AF_LINKX_BASE_MASK, start); + rvu_write64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link), cfg); + start += lbk_chans; + } + + start = hw->sdp_chan_base; + for (link = 0; link < hw->sdp_links; link++, nix_link++) { + cfg = rvu_read64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link)); + cfg &= ~(NIX_AF_LINKX_BASE_MASK | NIX_AF_LINKX_RANGE_MASK); + cfg |= FIELD_PREP(NIX_AF_LINKX_RANGE_MASK, ilog2(sdp_chans)); + cfg |= FIELD_PREP(NIX_AF_LINKX_BASE_MASK, start); + rvu_write64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link), cfg); + start += sdp_chans; + } + + start = hw->cpt_chan_base; + for (link = 0; link < hw->cpt_links; link++, nix_link++) { + cfg = rvu_read64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link)); + cfg &= ~(NIX_AF_LINKX_BASE_MASK | NIX_AF_LINKX_RANGE_MASK); + cfg |= FIELD_PREP(NIX_AF_LINKX_RANGE_MASK, ilog2(cpt_chans)); + cfg |= FIELD_PREP(NIX_AF_LINKX_BASE_MASK, start); + rvu_write64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link), cfg); + start += cpt_chans; + } +} + +static void rvu_nix_set_channels(struct rvu *rvu) +{ + int blkaddr = 0; + + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + while (blkaddr) { + __rvu_nix_set_channels(rvu, blkaddr); + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + } +} + +static void __rvu_rpm_set_channels(int cgxid, int lmacid, u16 base) +{ + u64 cfg; + + cfg = cgx_lmac_read(cgxid, lmacid, RPMX_CMRX_LINK_CFG); + cfg &= ~(RPMX_CMRX_LINK_BASE_MASK | RPMX_CMRX_LINK_RANGE_MASK); + + /* There is no read-only constant register to read + * the number of channels for LMAC and it is always 16. + */ + cfg |= FIELD_PREP(RPMX_CMRX_LINK_RANGE_MASK, ilog2(16)); + cfg |= FIELD_PREP(RPMX_CMRX_LINK_BASE_MASK, base); + cgx_lmac_write(cgxid, lmacid, RPMX_CMRX_LINK_CFG, cfg); +} + +static void rvu_rpm_set_channels(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 base = hw->cgx_chan_base; + int cgx, lmac; + + for (cgx = 0; cgx < rvu->cgx_cnt_max; cgx++) { + for (lmac = 0; lmac < hw->lmac_per_cgx; lmac++) { + __rvu_rpm_set_channels(cgx, lmac, base); + base += 16; + } + } +} + +void rvu_program_channels(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + + if (!hw->cap.programmable_chans) + return; + + rvu_nix_set_channels(rvu); + rvu_lbk_set_channels(rvu); + rvu_rpm_set_channels(rvu); +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c index 0c9b1c37a8c6..cf9e88c6b89e 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c @@ -233,7 +233,7 @@ static int nix_interface_init(struct rvu *rvu, u16 pcifunc, int type, int nixlf) "PF_Func 0x%x: Invalid pkind\n", pcifunc); return -EINVAL; } - pfvf->rx_chan_base = NIX_CHAN_CGX_LMAC_CHX(cgx_id, lmac_id, 0); + pfvf->rx_chan_base = rvu_nix_chan_cgx(rvu, cgx_id, lmac_id, 0); pfvf->tx_chan_base = pfvf->rx_chan_base; pfvf->rx_chan_cnt = 1; pfvf->tx_chan_cnt = 1; @@ -262,10 +262,10 @@ static int nix_interface_init(struct rvu *rvu, u16 pcifunc, int type, int nixlf) * loopback channels.Therefore if odd number of AF VFs are * enabled then the last VF remains with no pair. */ - pfvf->rx_chan_base = NIX_CHAN_LBK_CHX(lbkid, vf); + pfvf->rx_chan_base = rvu_nix_chan_lbk(rvu, lbkid, vf); pfvf->tx_chan_base = vf & 0x1 ? - NIX_CHAN_LBK_CHX(lbkid, vf - 1) : - NIX_CHAN_LBK_CHX(lbkid, vf + 1); + rvu_nix_chan_lbk(rvu, lbkid, vf - 1) : + rvu_nix_chan_lbk(rvu, lbkid, vf + 1); pfvf->rx_chan_cnt = 1; pfvf->tx_chan_cnt = 1; rvu_npc_install_promisc_entry(rvu, pcifunc, nixlf, @@ -3389,14 +3389,6 @@ static int rvu_nix_block_init(struct rvu *rvu, struct nix_hw *nix_hw) if (err) return err; - /* Set num of links of each type */ - cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST); - hw->cgx = (cfg >> 12) & 0xF; - hw->lmac_per_cgx = (cfg >> 8) & 0xF; - hw->cgx_links = hw->cgx * hw->lmac_per_cgx; - hw->lbk_links = (cfg >> 24) & 0xF; - hw->sdp_links = 1; - /* Initialize admin queue */ err = nix_aq_init(rvu, block); if (err) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c index 5cf9b7a907ae..04bb0803a5c5 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c @@ -102,9 +102,9 @@ int npc_mcam_verify_channel(struct rvu *rvu, u16 pcifunc, u8 intf, u16 channel) return -EINVAL; } else { rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); - base = NIX_CHAN_CGX_LMAC_CHX(cgx_id, lmac_id, 0x0); + base = rvu_nix_chan_cgx(rvu, cgx_id, lmac_id, 0x0); /* CGX mapped functions has maximum of 16 channels */ - end = NIX_CHAN_CGX_LMAC_CHX(cgx_id, lmac_id, 0xF); + end = rvu_nix_chan_cgx(rvu, cgx_id, lmac_id, 0xF); } if (channel < base || channel > end) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h index 78395c740c39..2460d71c4f87 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h @@ -406,12 +406,16 @@ #define NIX_AF_RX_NPC_MIRROR_RCV (0x4720) #define NIX_AF_RX_NPC_MIRROR_DROP (0x4730) #define NIX_AF_RX_ACTIVE_CYCLES_PCX(a) (0x4800 | (a) << 16) +#define NIX_AF_LINKX_CFG(a) (0x4010 | (a) << 17) #define NIX_PRIV_AF_INT_CFG (0x8000000) #define NIX_PRIV_LFX_CFG (0x8000010) #define NIX_PRIV_LFX_INT_CFG (0x8000020) #define NIX_AF_RVU_LF_CFG_DEBUG (0x8000030) +#define NIX_AF_LINKX_BASE_MASK GENMASK_ULL(11, 0) +#define NIX_AF_LINKX_RANGE_MASK GENMASK_ULL(19, 16) + /* SSO */ #define SSO_AF_CONST (0x1000) #define SSO_AF_CONST1 (0x1008) @@ -644,4 +648,16 @@ (0x00F00 | (a) << 5 | (b) << 4) #define NDC_AF_BANKX_HIT_PC(a) (0x01000 | (a) << 3) #define NDC_AF_BANKX_MISS_PC(a) (0x01100 | (a) << 3) + +/* LBK */ +#define LBK_CONST (0x10ull) +#define LBK_LINK_CFG_P2X (0x400ull) +#define LBK_LINK_CFG_X2P (0x408ull) +#define LBK_CONST_CHANS GENMASK_ULL(47, 32) +#define LBK_CONST_DST GENMASK_ULL(31, 28) +#define LBK_CONST_SRC GENMASK_ULL(27, 24) +#define LBK_LINK_CFG_RANGE_MASK GENMASK_ULL(19, 16) +#define LBK_LINK_CFG_ID_MASK GENMASK_ULL(11, 6) +#define LBK_LINK_CFG_BASE_MASK GENMASK_ULL(5, 0) + #endif /* RVU_REG_H */