From patchwork Thu Feb 11 01:46:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geetha sowjanya X-Patchwork-Id: 12082189 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 EE585C433E0 for ; Thu, 11 Feb 2021 01:57:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B010C64DBD for ; Thu, 11 Feb 2021 01:57:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229881AbhBKB4r (ORCPT ); Wed, 10 Feb 2021 20:56:47 -0500 Received: from mx0b-0016f401.pphosted.com ([67.231.156.173]:35868 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230179AbhBKBtL (ORCPT ); Wed, 10 Feb 2021 20:49:11 -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 11B1kgKx000423; Wed, 10 Feb 2021 17:48:26 -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=0M0SD2wSsN0orD4MfhmK710/UXhQIgcHGsLyie1jkZI=; b=SzUSjUvbaYtAblM2tWgxLB4AbyphxEdnU7xod8xfCf48IG2uju/NjzdD7hFYWE4ggb6l d4UX3mh5JfZ7VJw7kemoQQ3bKTHuViqF+zvFBvuvHUekmRQRjRdt0iSZ+qgQgUWtsRUl 2QeXjpSNQ4ui4MvBCbtGiW8ZRbvfZ8tQZPuflI/OWoY+OQOU9dLDTIy2Hmk4F6XyKtOJ wYMmP9yeZF/DFIMVmHpTEAX1fHE2dOqomyPs42Uq2wRHOI/6z9Sh8gNmcOcAdPz3VQWp ZXDZ6D8qhi+hze7TNzfOs9J+tB0tFU9FjcxKwXfrR++4weeiVF6FwImRtAafZWJFtUM7 Qg== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0b-0016f401.pphosted.com with ESMTP id 36hugqdhdy-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Wed, 10 Feb 2021 17:48:26 -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 17:48:24 -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 17:48:24 -0800 Received: from hyd1soter3.marvell.com (unknown [10.29.37.12]) by maili.marvell.com (Postfix) with ESMTP id 761B53F703F; Wed, 10 Feb 2021 17:48:20 -0800 (PST) From: Geetha sowjanya To: , , CC: , , , , , , , , , , Geetha sowjanya Subject: [net-next v5 14/14] octeontx2-af: cn10k: MAC internal loopback support Date: Thu, 11 Feb 2021 07:16:31 +0530 Message-ID: <20210211014631.9578-15-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: Hariprasad Kelam MAC on CN10K silicon support loopback for selftest or debug purposes. This patch does necessary configuration to loopback packets upon receiving request from LMAC mapped RVU PF's netdev via mailbox. Also MAC (CGX) on OcteonTx2 silicon variants and MAC (RPM) on OcteonTx3 CN10K are different and loopback needs to be configured differently. Upper layer interface between RVU AF and PF netdev is kept same. Based on silicon variant appropriate fn() pointer is called to config the MAC. Signed-off-by: Hariprasad Kelam Signed-off-by: Geetha sowjanya Signed-off-by: Sunil Goutham --- .../net/ethernet/marvell/octeontx2/af/cgx.c | 9 ++-- .../ethernet/marvell/octeontx2/af/cgx_fw_if.h | 1 + .../marvell/octeontx2/af/lmac_common.h | 4 +- .../net/ethernet/marvell/octeontx2/af/rpm.c | 44 +++++++++++++++++++ .../net/ethernet/marvell/octeontx2/af/rpm.h | 5 +++ .../ethernet/marvell/octeontx2/af/rvu_cgx.c | 6 +-- 6 files changed, 62 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c index 7b03234567ca..fefefa4db726 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c @@ -228,8 +228,9 @@ int cgx_set_pkind(void *cgxd, u8 lmac_id, int pkind) return 0; } -static inline u8 cgx_get_lmac_type(struct cgx *cgx, int lmac_id) +static u8 cgx_get_lmac_type(void *cgxd, int lmac_id) { + struct cgx *cgx = cgxd; u64 cfg; cfg = cgx_read(cgx, lmac_id, CGXX_CMRX_CFG); @@ -246,7 +247,7 @@ int cgx_lmac_internal_loopback(void *cgxd, int lmac_id, bool enable) if (!is_lmac_valid(cgx, lmac_id)) return -ENODEV; - lmac_type = cgx_get_lmac_type(cgx, lmac_id); + lmac_type = cgx->mac_ops->get_lmac_type(cgx, lmac_id); if (lmac_type == LMAC_MODE_SGMII || lmac_type == LMAC_MODE_QSGMII) { cfg = cgx_read(cgx, lmac_id, CGXX_GMP_PCS_MRX_CTL); if (enable) @@ -637,7 +638,7 @@ static inline void link_status_user_format(u64 lstat, linfo->link_up = FIELD_GET(RESP_LINKSTAT_UP, lstat); linfo->full_duplex = FIELD_GET(RESP_LINKSTAT_FDUPLEX, lstat); linfo->speed = cgx_speed_mbps[FIELD_GET(RESP_LINKSTAT_SPEED, lstat)]; - linfo->lmac_type_id = cgx_get_lmac_type(cgx, lmac_id); + linfo->lmac_type_id = FIELD_GET(RESP_LINKSTAT_LMAC_TYPE, lstat); lmac_string = cgx_lmactype_string[linfo->lmac_type_id]; strncpy(linfo->lmac_type, lmac_string, LMACTYPE_STR_LEN - 1); } @@ -1046,6 +1047,8 @@ static struct mac_ops cgx_mac_ops = { .rx_stats_cnt = 9, .tx_stats_cnt = 18, .get_nr_lmacs = cgx_get_nr_lmacs, + .get_lmac_type = cgx_get_lmac_type, + .mac_lmac_intl_lbk = cgx_lmac_internal_loopback, .mac_get_rx_stats = cgx_get_rx_stats, .mac_get_tx_stats = cgx_get_tx_stats, .mac_enadis_rx_pause_fwding = cgx_lmac_enadis_rx_pause_fwding, diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h b/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h index c3702fa58b6b..c07a96ed6c61 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h @@ -154,6 +154,7 @@ enum cgx_cmd_own { * CGX_STAT_SUCCESS */ #define RESP_FWD_BASE GENMASK_ULL(56, 9) +#define RESP_LINKSTAT_LMAC_TYPE GENMASK_ULL(35, 28) /* Response to cmd ID - CGX_CMD_LINK_BRING_UP/DOWN, event ID CGX_EVT_LINK_CHANGE * status can be either CGX_STAT_FAIL or CGX_STAT_SUCCESS diff --git a/drivers/net/ethernet/marvell/octeontx2/af/lmac_common.h b/drivers/net/ethernet/marvell/octeontx2/af/lmac_common.h index fea230393782..45706fd87120 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/lmac_common.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/lmac_common.h @@ -70,7 +70,9 @@ struct mac_ops { * number of setbits in lmac_exist tells number of lmacs */ int (*get_nr_lmacs)(void *cgx); - + u8 (*get_lmac_type)(void *cgx, int lmac_id); + int (*mac_lmac_intl_lbk)(void *cgx, int lmac_id, + bool enable); /* Register Stats related functions */ int (*mac_get_rx_stats)(void *cgx, int lmac_id, int idx, u64 *rx_stat); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rpm.c b/drivers/net/ethernet/marvell/octeontx2/af/rpm.c index 3870cd436683..a91ccdc59403 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rpm.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rpm.c @@ -21,6 +21,8 @@ static struct mac_ops rpm_mac_ops = { .rx_stats_cnt = 43, .tx_stats_cnt = 34, .get_nr_lmacs = rpm_get_nr_lmacs, + .get_lmac_type = rpm_get_lmac_type, + .mac_lmac_intl_lbk = rpm_lmac_internal_loopback, .mac_get_rx_stats = rpm_get_rx_stats, .mac_get_tx_stats = rpm_get_tx_stats, .mac_enadis_rx_pause_fwding = rpm_lmac_enadis_rx_pause_fwding, @@ -226,3 +228,45 @@ int rpm_get_tx_stats(void *rpmd, int lmac_id, int idx, u64 *tx_stat) mutex_unlock(&rpm->lock); return 0; } + +u8 rpm_get_lmac_type(void *rpmd, int lmac_id) +{ + rpm_t *rpm = rpmd; + u64 req = 0, resp; + int err; + + req = FIELD_SET(CMDREG_ID, CGX_CMD_GET_LINK_STS, req); + err = cgx_fwi_cmd_generic(req, &resp, rpm, 0); + if (!err) + return FIELD_GET(RESP_LINKSTAT_LMAC_TYPE, resp); + return err; +} + +int rpm_lmac_internal_loopback(void *rpmd, int lmac_id, bool enable) +{ + rpm_t *rpm = rpmd; + u8 lmac_type; + u64 cfg; + + if (!rpm || lmac_id >= rpm->lmac_count) + return -ENODEV; + lmac_type = rpm->mac_ops->get_lmac_type(rpm, lmac_id); + if (lmac_type == LMAC_MODE_100G_R) { + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_PCS100X_CONTROL1); + + if (enable) + cfg |= RPMX_MTI_PCS_LBK; + else + cfg &= ~RPMX_MTI_PCS_LBK; + rpm_write(rpm, lmac_id, RPMX_MTI_PCS100X_CONTROL1, cfg); + } else { + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_LPCSX_CONTROL1); + if (enable) + cfg |= RPMX_MTI_PCS_LBK; + else + cfg &= ~RPMX_MTI_PCS_LBK; + rpm_write(rpm, lmac_id, RPMX_MTI_LPCSX_CONTROL1, cfg); + } + + return 0; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rpm.h b/drivers/net/ethernet/marvell/octeontx2/af/rpm.h index c939302308b5..d32e74bd5964 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rpm.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rpm.h @@ -18,6 +18,9 @@ #define RPMX_CMRX_SW_INT_W1S 0x188 #define RPMX_CMRX_SW_INT_ENA_W1S 0x198 #define RPMX_CMRX_LINK_CFG 0x1070 +#define RPMX_MTI_PCS100X_CONTROL1 0x20000 +#define RPMX_MTI_LPCSX_CONTROL1 0x30000 +#define RPMX_MTI_PCS_LBK BIT_ULL(14) #define RPMX_MTI_LPCSX_CONTROL(id) (0x30000 | ((id) * 0x100)) #define RPMX_CMRX_LINK_RANGE_MASK GENMASK_ULL(19, 16) @@ -41,6 +44,8 @@ /* Function Declarations */ int rpm_get_nr_lmacs(void *rpmd); +u8 rpm_get_lmac_type(void *rpmd, int lmac_id); +int rpm_lmac_internal_loopback(void *rpmd, int lmac_id, bool enable); void rpm_lmac_enadis_rx_pause_fwding(void *rpmd, int lmac_id, bool enable); int rpm_lmac_get_pause_frm_status(void *cgxd, int lmac_id, u8 *tx_pause, u8 *rx_pause); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c index e0f9414f8358..b3dd89a4c322 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c @@ -706,15 +706,15 @@ u32 rvu_cgx_get_fifolen(struct rvu *rvu) static int rvu_cgx_config_intlbk(struct rvu *rvu, u16 pcifunc, bool en) { - int pf = rvu_get_pf(pcifunc); + struct mac_ops *mac_ops; u8 cgx_id, lmac_id; if (!is_cgx_config_permitted(rvu, pcifunc)) return -EPERM; - rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + mac_ops = get_mac_ops(rvu_cgx_pdata(cgx_id, rvu)); - return cgx_lmac_internal_loopback(rvu_cgx_pdata(cgx_id, rvu), + return mac_ops->mac_lmac_intl_lbk(rvu_cgx_pdata(cgx_id, rvu), lmac_id, en); }