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([50.37.200.153]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-203855dd269sm74503625ad.135.2024.08.26.20.50.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Aug 2024 20:50:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=schmorgal.com; s=google; t=1724730651; x=1725335451; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=JnP3Mz0YCYvkvuQOeow8f8X6KYRPaGRZd1rCOK6MrJs=; b=ezn6Jw5yIk/p1LxOfuLXUfwN2RNBV1E5lO5T4x/exItkNiWPnpWTeOiKue205tDyAS t/WSe3abnQJYnUNlf+BDU1lWz+WhODlMp/6eNvjY+ZzzuiyExYhqZoG7McIZdrz+cMoA oyXA+8jtShnR870yNeGLGphSbxHT1a1a2qvLc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724730651; x=1725335451; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=JnP3Mz0YCYvkvuQOeow8f8X6KYRPaGRZd1rCOK6MrJs=; b=S4wFOiqZXhudGhyn07Ja53JG0+R5ZqNSce5+bAaCBkLFSEMBifAu2ZGtWXO3chSNGo m5a+5nsmlQ+7lDHEgG4FoB6njih91pUM97uTn+TPOXqt5ddk4H9vbUBN7K2Kifi4bx4Z xL4L4CQwiL6F6bq7wkjlkxkHUl1qAKtBw2xZlG2xCzDHKhVbe81nHM4DnaMWBxBQ7xRs pakM826h7o3csM6ehfhxf+/QXImiE58VbXWYflwxaO8bZyFt4h4ONJvZn9smc3Mub7I0 82kQ/tfzUkPfN7dRbHGcjymYn9UmCABK96Kka5DKbso8b7f9DV6yD75tqmLt64MmTJhm VeBQ== X-Forwarded-Encrypted: i=1; AJvYcCUtnXuYyzB2o8WTrpaZmePQYsN2FZ40WHoIXpOxKFoU8e6tFE/APxuMgyQk6ZD37KrDND+VRfYat8Nl@nongnu.org X-Gm-Message-State: AOJu0YyceIiirmmae5XyWTa/ztir6vri3TOC0afoYcuX/r6Uqoj5Rp31 25YlmGypbNq718cHcJgSzjiex0bwt/8rcqMn0YCC3edVgSAqhTRfnntv0B5yifk= X-Google-Smtp-Source: AGHT+IGe3PUZEYCSgJsKiA6gmmK50hNyHr7QOk853mSIwidN4JmobSoIwlgaGyUk6yU8I4xAs38q6w== X-Received: by 2002:a17:902:d2c6:b0:202:2cd5:2085 with SMTP id d9443c01a7336-2039e4b4b90mr96999355ad.32.1724730651632; Mon, 26 Aug 2024 20:50:51 -0700 (PDT) From: Doug Brown To: Francisco Iglesias , Pavel Pisa Cc: Jason Wang , Paolo Bonzini , qemu-devel@nongnu.org, Doug Brown Subject: [PATCH v2 5/7] hw/net/can/xlnx-versal-canfd: Fix byte ordering Date: Mon, 26 Aug 2024 20:49:25 -0700 Message-Id: <20240827034927.66659-6-doug@schmorgal.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240827034927.66659-1-doug@schmorgal.com> References: <20240827034927.66659-1-doug@schmorgal.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::52f; envelope-from=doug@schmorgal.com; helo=mail-pg1-x52f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @schmorgal.com) X-ZM-MESSAGEID: 1724730741708116600 Content-Type: text/plain; charset="utf-8" The endianness of the CAN data was backwards in each group of 4 bytes. For example, the following data: 00 11 22 33 44 55 66 77 was showing up like this: 33 22 11 00 77 66 55 44 Fix both the TX and RX code to put the data in the correct order. Signed-off-by: Doug Brown Reviewed-by: Francisco Iglesias Acked-by: Pavel Pisa --- hw/net/can/xlnx-versal-canfd.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/hw/net/can/xlnx-versal-canfd.c b/hw/net/can/xlnx-versal-canfd.c index 47631917ab..5d7adf8740 100644 --- a/hw/net/can/xlnx-versal-canfd.c +++ b/hw/net/can/xlnx-versal-canfd.c @@ -951,7 +951,7 @@ static void regs2frame(XlnxVersalCANFDState *s, qemu_ca= n_frame *frame, } =20 for (j =3D 0; j < frame->can_dlc; j++) { - val =3D 8 * i; + val =3D 8 * (3 - i); =20 frame->data[j] =3D extract32(s->regs[reg_num + 2 + (j / 4)], val, = 8); i++; @@ -1093,19 +1093,19 @@ static void store_rx_sequential(XlnxVersalCANFDStat= e *s, case 0: rx_reg_num =3D i / 4; =20 - data_reg_val =3D FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTES= 3, + data_reg_val =3D FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTES= 0, frame->data[i]); break; case 1: - data_reg_val |=3D FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTE= S2, + data_reg_val |=3D FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTE= S1, frame->data[i]); break; case 2: - data_reg_val |=3D FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTE= S1, + data_reg_val |=3D FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTE= S2, frame->data[i]); break; case 3: - data_reg_val |=3D FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTE= S0, + data_reg_val |=3D FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTE= S3, frame->data[i]); /* * Last Bytes data which means we have all 4 bytes ready to --=20 2.34.1