From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2CFA5C2BA4C for ; Wed, 26 Jan 2022 04:40:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232717AbiAZEkk (ORCPT ); Tue, 25 Jan 2022 23:40:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35162 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232432AbiAZEki (ORCPT ); Tue, 25 Jan 2022 23:40:38 -0500 Received: from mail-pf1-x433.google.com (mail-pf1-x433.google.com [IPv6:2607:f8b0:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 44F3AC06161C for ; Tue, 25 Jan 2022 20:40:38 -0800 (PST) Received: by mail-pf1-x433.google.com with SMTP id i30so2920575pfk.8 for ; Tue, 25 Jan 2022 20:40:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=0rW7cSD/7nqlUahrITWvzMdLBf/ZZP4egXgY7UnZbNE=; b=C8tZxNyG5y/U3dk2xNmRZD2fdJY7z0B1/eop0NUDgTAV4Ya37f6nJxsV/YlbLCiX5U woqs3JPxRpYeLqkY7dHZa3WOtUCbn0FZpYvB3b7i2GRRhSnl6lkltjdoQhc6fuDHXOyx VBhZIMrmYvGIWawAZHMzOskhQzf1bKM4w/sQ4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=0rW7cSD/7nqlUahrITWvzMdLBf/ZZP4egXgY7UnZbNE=; b=Y6rXAoDJgIzsyapHMzvcicA7SSjr7jaZDRb+aFQApbtMOTrAKi63XcI/HpK+nGYECY aG1cjcSr9gXQWRBm9iz9aOUUdtXT5qgiZN1OIIynhz1v1fDVAoTz9qngkiHEQ2aD9VrY 9EHNvF+aBKREfT2XWdaEfNXgzdApGU1sbPlOnzv8cPT/XuZBSs1HFOrP4f8P9bZN2oqj 2fsuguImTlGKm3gMJWuBLKEByxG0mv0JdO+7qm9GwRBLEZdr5TqQ2ZQcfgY9+YBJDmfk C79A5bonADStivKuHfJakNVPT8JTOvWEumEFNNtF3i4PoVqQB9HpCGJLvQIi6a+eB+vR fJSQ== X-Gm-Message-State: AOAM531IO3mo/mq1Mwyp+e+a+5t38dAzly9yRmQFt8J2f2uWy21cCu2Z O9OQHP30uEAVa8Fz+aJxgReEqQ== X-Google-Smtp-Source: ABdhPJxSbpmVV3Nu4r2SbDC8NXW5KA53BEMwqtN54wn2yCKUtOJJSSqDvfKVaRNbO/vQbYtTB/htzg== X-Received: by 2002:a63:610b:: with SMTP id v11mr17797493pgb.183.1643172037544; Tue, 25 Jan 2022 20:40:37 -0800 (PST) Received: from localhost.swdvt.lab.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id s12sm559957pfk.65.2022.01.25.20.40.36 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 25 Jan 2022 20:40:37 -0800 (PST) From: Michael Chan To: davem@davemloft.net Cc: netdev@vger.kernel.org, kuba@kernel.org, gospo@broadcom.com, pavan.chebbi@broadcom.com, Richard Cochran Subject: [PATCH net-next 4/5] bnxt_en: Implement .adjtime() for PTP RTC mode Date: Tue, 25 Jan 2022 23:40:12 -0500 Message-Id: <1643172013-31729-5-git-send-email-michael.chan@broadcom.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1643172013-31729-1-git-send-email-michael.chan@broadcom.com> References: <1643172013-31729-1-git-send-email-michael.chan@broadcom.com> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="000000000000a1ebf805d674cd9d" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org --000000000000a1ebf805d674cd9d From: Pavan Chebbi The adjusted time is set in the PHC in RTC mode. We also need to update the snapshots ptp->current_time and ptp->old_time when the time is adjusted. Cc: Richard Cochran Reviewed-by: Somnath Kotur Signed-off-by: Pavan Chebbi Signed-off-by: Michael Chan --- drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c | 36 +++++++++++++++++++ drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h | 1 + 2 files changed, 37 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c index 066e5a9bb29e..a0b321a19361 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c @@ -148,11 +148,47 @@ static int bnxt_ptp_gettimex(struct ptp_clock_info *ptp_info, return 0; } +/* Caller holds ptp_lock */ +void bnxt_ptp_update_current_time(struct bnxt *bp) +{ + struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; + + bnxt_refclk_read(ptp->bp, NULL, &ptp->current_time); + WRITE_ONCE(ptp->old_time, ptp->current_time); +} + +static int bnxt_ptp_adjphc(struct bnxt_ptp_cfg *ptp, s64 delta) +{ + struct hwrm_port_mac_cfg_input *req; + int rc; + + rc = hwrm_req_init(ptp->bp, req, HWRM_PORT_MAC_CFG); + if (rc) + return rc; + + req->enables = cpu_to_le32(PORT_MAC_CFG_REQ_ENABLES_PTP_ADJ_PHASE); + req->ptp_adj_phase = cpu_to_le64(delta); + + rc = hwrm_req_send(ptp->bp, req); + if (rc) { + netdev_err(ptp->bp->dev, "ptp adjphc failed. rc = %x\n", rc); + } else { + spin_lock_bh(&ptp->ptp_lock); + bnxt_ptp_update_current_time(ptp->bp); + spin_unlock_bh(&ptp->ptp_lock); + } + + return rc; +} + static int bnxt_ptp_adjtime(struct ptp_clock_info *ptp_info, s64 delta) { struct bnxt_ptp_cfg *ptp = container_of(ptp_info, struct bnxt_ptp_cfg, ptp_info); + if (ptp->bp->fw_cap & BNXT_FW_CAP_PTP_RTC) + return bnxt_ptp_adjphc(ptp, delta); + spin_lock_bh(&ptp->ptp_lock); timecounter_adjtime(&ptp->tc, delta); spin_unlock_bh(&ptp->ptp_lock); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h index ca850c5f0607..373baf45884b 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h @@ -131,6 +131,7 @@ do { \ #endif int bnxt_ptp_parse(struct sk_buff *skb, u16 *seq_id, u16 *hdr_off); +void bnxt_ptp_update_current_time(struct bnxt *bp); void bnxt_ptp_pps_event(struct bnxt *bp, u32 data1, u32 data2); void bnxt_ptp_reapply_pps(struct bnxt *bp); int bnxt_hwtstamp_set(struct net_device *dev, struct ifreq *ifr); -- 2.18.1 --000000000000a1ebf805d674cd9d Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQbQYJKoZIhvcNAQcCoIIQXjCCEFoCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg3EMIIFDTCCA/WgAwIBAgIQeEqpED+lv77edQixNJMdADANBgkqhkiG9w0BAQsFADBMMSAwHgYD VQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UE AxMKR2xvYmFsU2lnbjAeFw0yMDA5MTYwMDAwMDBaFw0yODA5MTYwMDAwMDBaMFsxCzAJBgNVBAYT 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