From patchwork Sun Jun 28 20:20:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Christophe Dubois X-Patchwork-Id: 11630349 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 217126C1 for ; Sun, 28 Jun 2020 20:22:58 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 02332206F2 for ; Sun, 28 Jun 2020 20:22:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 02332206F2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=tribudubois.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:37084 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jpdpJ-0007oL-9J for patchwork-qemu-devel@patchwork.kernel.org; Sun, 28 Jun 2020 16:22:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43314) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jpdnu-0005mR-Dp for qemu-devel@nongnu.org; Sun, 28 Jun 2020 16:21:30 -0400 Received: from relay9-d.mail.gandi.net ([217.70.183.199]:42895) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jpdns-0004EE-HR for qemu-devel@nongnu.org; Sun, 28 Jun 2020 16:21:30 -0400 X-Originating-IP: 82.252.130.88 Received: from localhost.localdomain (lns-bzn-59-82-252-130-88.adsl.proxad.net [82.252.130.88]) (Authenticated sender: jcd@tribudubois.net) by relay9-d.mail.gandi.net (Postfix) with ESMTPSA id 2709EFF804; Sun, 28 Jun 2020 20:21:25 +0000 (UTC) From: Jean-Christophe Dubois To: qemu-devel@nongnu.org, peter.maydell@linaro.org, peter.chubb@nicta.com.au, f4bug@amsat.org Subject: [PATCH 1/3] Add a phy-num property to the i.MX FEC emulator Date: Sun, 28 Jun 2020 22:20:56 +0200 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=217.70.183.199; envelope-from=jcd@tribudubois.net; helo=relay9-d.mail.gandi.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/28 16:21:22 X-ACL-Warn: Detected OS = Linux 3.11 and newer X-Spam_score_int: -35 X-Spam_score: -3.6 X-Spam_bar: --- X-Spam_report: (-3.6 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jean-Christophe Dubois Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" We need a solution to use an Ethernet PHY that is not the first device on the MDIO bus (device 0 on MDIO bus). As an example with the i.MX6UL the NXP SOC has 2 Ethernet devices but only one MDIO bus on which the 2 related PHY are connected but at unique addresses. Signed-off-by: Jean-Christophe Dubois --- hw/net/imx_fec.c | 24 +++++++++++++++++------- hw/net/trace-events | 4 ++-- include/hw/net/imx_fec.h | 1 + 3 files changed, 20 insertions(+), 9 deletions(-) diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c index eefedc252de..2c148040414 100644 --- a/hw/net/imx_fec.c +++ b/hw/net/imx_fec.c @@ -280,12 +280,16 @@ static void imx_phy_reset(IMXFECState *s) static uint32_t imx_phy_read(IMXFECState *s, int reg) { uint32_t val; + uint32_t phy = reg / 32; - if (reg > 31) { - /* we only advertise one phy */ + if (phy != s->phy_num) { + qemu_log_mask(LOG_GUEST_ERROR, "[%s.phy]%s: Bad phy num %u\n", + TYPE_IMX_FEC, __func__, phy); return 0; } + reg %= 32; + switch (reg) { case 0: /* Basic Control */ val = s->phy_control; @@ -331,20 +335,25 @@ static uint32_t imx_phy_read(IMXFECState *s, int reg) break; } - trace_imx_phy_read(val, reg); + trace_imx_phy_read(val, phy, reg); return val; } static void imx_phy_write(IMXFECState *s, int reg, uint32_t val) { - trace_imx_phy_write(val, reg); + uint32_t phy = reg / 32; - if (reg > 31) { - /* we only advertise one phy */ + if (phy != s->phy_num) { + qemu_log_mask(LOG_GUEST_ERROR, "[%s.phy]%s: Bad phy num %u\n", + TYPE_IMX_FEC, __func__, phy); return; } + reg %= 32; + + trace_imx_phy_write(val, phy, reg); + switch (reg) { case 0: /* Basic Control */ if (val & 0x8000) { @@ -926,7 +935,7 @@ static void imx_eth_write(void *opaque, hwaddr offset, uint64_t value, extract32(value, 18, 10))); } else { - /* This a write operation */ + /* This is a write operation */ imx_phy_write(s, extract32(value, 18, 10), extract32(value, 0, 16)); } /* raise the interrupt as the PHY operation is done */ @@ -1315,6 +1324,7 @@ static void imx_eth_realize(DeviceState *dev, Error **errp) static Property imx_eth_properties[] = { DEFINE_NIC_PROPERTIES(IMXFECState, conf), DEFINE_PROP_UINT32("tx-ring-num", IMXFECState, tx_ring_num, 1), + DEFINE_PROP_UINT32("phy-num", IMXFECState, phy_num, 0), DEFINE_PROP_END_OF_LIST(), }; diff --git a/hw/net/trace-events b/hw/net/trace-events index e6875c4c0f6..5db45456d92 100644 --- a/hw/net/trace-events +++ b/hw/net/trace-events @@ -413,8 +413,8 @@ i82596_set_multicast(uint16_t count) "Added %d multicast entries" i82596_channel_attention(void *s) "%p: Received CHANNEL ATTENTION" # imx_fec.c -imx_phy_read(uint32_t val, int reg) "0x%04"PRIx32" <= reg[%d]" -imx_phy_write(uint32_t val, int reg) "0x%04"PRIx32" => reg[%d]" +imx_phy_read(uint32_t val, int phy, int reg) "0x%04"PRIx32" <= phy[%d].reg[%d]" +imx_phy_write(uint32_t val, int phy, int reg) "0x%04"PRIx32" => phy[%d].reg[%d]" imx_phy_update_link(const char *s) "%s" imx_phy_reset(void) "" imx_fec_read_bd(uint64_t addr, int flags, int len, int data) "tx_bd 0x%"PRIx64" flags 0x%04x len %d data 0x%08x" diff --git a/include/hw/net/imx_fec.h b/include/hw/net/imx_fec.h index 7b3faa40194..9f03034b893 100644 --- a/include/hw/net/imx_fec.h +++ b/include/hw/net/imx_fec.h @@ -268,6 +268,7 @@ typedef struct IMXFECState { uint32_t phy_advertise; uint32_t phy_int; uint32_t phy_int_mask; + uint32_t phy_num; bool is_fec;