From patchwork Wed Mar 20 14:42:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Diogo Ivo X-Patchwork-Id: 13597925 X-Patchwork-Delegate: kuba@kernel.org Received: from mta-64-226.siemens.flowmailer.net (mta-64-226.siemens.flowmailer.net [185.136.64.226]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 11C3951C2A for ; Wed, 20 Mar 2024 14:42:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.136.64.226 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710945780; cv=none; b=JpbOdS+4goSci8rfcwYLo3WaqLF5YjkX76LF8XTCBLmZC6waKJoHLUNRxXggoHOOG9Rsui+GYsD2yiPPLryEtRyOkjS3XldDkKxJ/fBWX2rN4S4A1wuAfSWKfFY7PcbUR6pxl3gWoiOBe4H9af6FPlmDBTI4nrZ4EC2GAsJCE4Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710945780; c=relaxed/simple; bh=FVupAo+cSrbzqgRgohX4zj8QK5LLqbcIs2vDhEC+9es=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oQ+QegdtR0c6R/76g5NKNVRmpUTeXZ+dFmKNZrxwkvK6cTEh54kxrQ8JAwL6nIcZ/GsJ/fmsMtnf5M4p1g4bjwgdMcgFa8CrHYLbyYY7dVTZ8rVlMDGVV573RqqhCj58xcd9xQlqopEmbICp1+6Z5RhncWcearhdS2RDNZ2y3Zs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=siemens.com; spf=pass smtp.mailfrom=rts-flowmailer.siemens.com; dkim=pass (1024-bit key) header.d=siemens.com header.i=diogo.ivo@siemens.com header.b=DZgAYkXG; arc=none smtp.client-ip=185.136.64.226 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=siemens.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rts-flowmailer.siemens.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=siemens.com header.i=diogo.ivo@siemens.com header.b="DZgAYkXG" Received: by mta-64-226.siemens.flowmailer.net with ESMTPSA id 202403201442587776c5713f6b79131a for ; Wed, 20 Mar 2024 15:42:58 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=fm1; d=siemens.com; i=diogo.ivo@siemens.com; h=Date:From:Subject:To:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:Cc:References:In-Reply-To; bh=mT1ZqN3HVk2/tJvY22Xtc/ZtSAN7kqkeHXbh9Kuw+D8=; b=DZgAYkXGICl+YimvupFzRUcGT/hp3HwqL6KdiQsmwBmpFhRqzddiuI0pZO9J4vOZZomS2p rnxpcFyhlrBIPGGkSfysdj/6dFh9Up72PhSXXgKFM6dMwQ6WIui8a26BJjQ4MwIdlOBC7K0r LIz+++RwjDJy2W1DQLIbIGaInU5do=; From: Diogo Ivo To: danishanwar@ti.com, rogerq@kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew@lunn.ch, hkallweit1@gmail.com, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org Cc: Diogo Ivo , jan.kiszka@siemens.com Subject: [PATCH net-next v5 07/10] net: ti: icssg-prueth: Adjust the number of TX channels for SR1.0 Date: Wed, 20 Mar 2024 14:42:29 +0000 Message-ID: <20240320144234.313672-8-diogo.ivo@siemens.com> In-Reply-To: <20240320144234.313672-1-diogo.ivo@siemens.com> References: <20240320144234.313672-1-diogo.ivo@siemens.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-1320519:519-21489:flowmailer X-Patchwork-Delegate: kuba@kernel.org As SR1.0 uses the current higher priority channel to send commands to the firmware, take this into account when setting/getting the number of channels to/from the user. Based on the work of Roger Quadros in TI's 5.10 SDK [1]. [1]: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/?h=ti-linux-5.10.y Co-developed-by: Jan Kiszka Signed-off-by: Jan Kiszka Signed-off-by: Diogo Ivo Reviewed-by: Roger Quadros Reviewed-by: MD Danish Anwar --- Changes in v5: - Restrict number of TX channels to 1 to avoid timeouts - Added Reviewed-by tag from Danish Changes in v4: - Add Reviewed-by from Roger Changes in v3: - Address Roger's comments on SR1.0 handling drivers/net/ethernet/ti/icssg/icssg_ethtool.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/ethernet/ti/icssg/icssg_ethtool.c b/drivers/net/ethernet/ti/icssg/icssg_ethtool.c index 9a7dd7efcf69..ca20325d4d3e 100644 --- a/drivers/net/ethernet/ti/icssg/icssg_ethtool.c +++ b/drivers/net/ethernet/ti/icssg/icssg_ethtool.c @@ -142,6 +142,9 @@ static int emac_set_channels(struct net_device *ndev, emac->tx_ch_num = ch->tx_count; + if (emac->is_sr1) + emac->tx_ch_num++; + return 0; } @@ -152,8 +155,17 @@ static void emac_get_channels(struct net_device *ndev, ch->max_rx = 1; ch->max_tx = PRUETH_MAX_TX_QUEUES; + + /* Disable multiple TX channels due to timeouts + * when using more than one queue */ + if (emac->is_sr1) + ch->max_tx = 1; + ch->rx_count = 1; ch->tx_count = emac->tx_ch_num; + + if (emac->is_sr1) + ch->tx_count--; } static const struct ethtool_rmon_hist_range emac_rmon_ranges[] = {