From patchwork Wed Jul 12 16:28:11 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Dahl X-Patchwork-Id: 9837141 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D39D160363 for ; Wed, 12 Jul 2017 16:30:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C2F842860A for ; Wed, 12 Jul 2017 16:30:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B763B28640; Wed, 12 Jul 2017 16:30:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 427FF28641 for ; Wed, 12 Jul 2017 16:30:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=A/dfVfTqPxciB5eRFBqi+PUyuG/fbAsQo9kX2iMMuKQ=; b=rHgMKkRkjgAc2wukJ9beTobjlY stz3jI2Y9fIIH6yPP/KlhLNWJ2lP8gqY/+q0QUQZ0mU1Wu5AIYuzfD0QeEiJFACnQlrgXFLNoemNr +6L9xHFaRWdCPi5LaxIA9p18pNLZbWlxdqFcYVFlZYem2gatgzh3XNth3kgM045i9/xz0MayNbGAw zGNnVnghrdx7WkHcEYF+yKZhUh+kaQoQWbmx58EDYNeU56fjZIV6bKpFoN5eBe5MXLjxBacS/9wcz ncU3SeV5mLmsro4hpbSkes4lKrnY0RMXfu9l33pfdVfVbYDR8kk3CRWXh50ZKi/lWPkNsnmIDHCz1 VXYPHUHw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dVKWY-0001F9-Dr; Wed, 12 Jul 2017 16:30:02 +0000 Received: from mail.thorsis.com ([213.211.200.15]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dVKVg-0000Ju-2R for linux-arm-kernel@lists.infradead.org; Wed, 12 Jul 2017 16:29:12 +0000 Received: from localhost (localhost [127.0.0.1]) by mail.thorsis.com (Postfix) with ESMTP id 9014B3A0E21; Wed, 12 Jul 2017 18:29:25 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at mail.thorsis.com Received: from mail.thorsis.com ([127.0.0.1]) by localhost (mail.thorsis.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id W29Yi5fpvCgp; Wed, 12 Jul 2017 18:29:21 +0200 (CEST) Received: from seven.thorsis.com (unknown [192.168.10.7]) by mail.thorsis.com (Postfix) with ESMTP id 1A3A73A0E2D; Wed, 12 Jul 2017 18:29:19 +0200 (CEST) Received: from ada.ifak-system.com (ada.ifak-system.com [192.168.10.62]) by seven.thorsis.com (Postfix) with ESMTPSA id 4F4DEE0028F; Wed, 12 Jul 2017 18:29:04 +0200 (CEST) From: Alexander Dahl To: linux-kernel@vger.kernel.org Subject: [RFC 2/3] net: macb: Add buffer descriptor names Date: Wed, 12 Jul 2017 18:28:11 +0200 Message-Id: <1499876892-14423-3-git-send-email-ada@thorsis.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1499876892-14423-1-git-send-email-ada@thorsis.com> References: <1499876892-14423-1-git-send-email-ada@thorsis.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170712_092908_532473_A061D2FA X-CRM114-Status: UNSURE ( 7.36 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Documentation of the EMAC buffer descriptor bitfields. Taken from the AT91SAM9G20 complete datasheet. Signed-off-by: Alexander Dahl --- drivers/net/ethernet/cadence/macb.h | 50 ++++++++++++++++++------------------- 1 file changed, 25 insertions(+), 25 deletions(-) diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h index 8547d92..567c72d 100644 --- a/drivers/net/ethernet/cadence/macb.h +++ b/drivers/net/ethernet/cadence/macb.h @@ -566,39 +566,39 @@ struct macb_dma_desc_64 { #define MACB_RX_WADDR_OFFSET 2 #define MACB_RX_WADDR_SIZE 30 -#define MACB_RX_FRMLEN_OFFSET 0 +#define MACB_RX_FRMLEN_OFFSET 0 /* Length of frame */ #define MACB_RX_FRMLEN_SIZE 12 -#define MACB_RX_OFFSET_OFFSET 12 +#define MACB_RX_OFFSET_OFFSET 12 /* Receive buffer offset */ #define MACB_RX_OFFSET_SIZE 2 -#define MACB_RX_SOF_OFFSET 14 +#define MACB_RX_SOF_OFFSET 14 /* Start of frame */ #define MACB_RX_SOF_SIZE 1 -#define MACB_RX_EOF_OFFSET 15 +#define MACB_RX_EOF_OFFSET 15 /* End of frame */ #define MACB_RX_EOF_SIZE 1 -#define MACB_RX_CFI_OFFSET 16 +#define MACB_RX_CFI_OFFSET 16 /* Concatenation format indicator */ #define MACB_RX_CFI_SIZE 1 -#define MACB_RX_VLAN_PRI_OFFSET 17 +#define MACB_RX_VLAN_PRI_OFFSET 17 /* VLAN priority */ #define MACB_RX_VLAN_PRI_SIZE 3 -#define MACB_RX_PRI_TAG_OFFSET 20 +#define MACB_RX_PRI_TAG_OFFSET 20 /* Priority tag detected */ #define MACB_RX_PRI_TAG_SIZE 1 -#define MACB_RX_VLAN_TAG_OFFSET 21 +#define MACB_RX_VLAN_TAG_OFFSET 21 /* VLAN tag detected */ #define MACB_RX_VLAN_TAG_SIZE 1 -#define MACB_RX_TYPEID_MATCH_OFFSET 22 +#define MACB_RX_TYPEID_MATCH_OFFSET 22 /* Type ID match */ #define MACB_RX_TYPEID_MATCH_SIZE 1 -#define MACB_RX_SA4_MATCH_OFFSET 23 +#define MACB_RX_SA4_MATCH_OFFSET 23 /* Specific address register 4 match */ #define MACB_RX_SA4_MATCH_SIZE 1 -#define MACB_RX_SA3_MATCH_OFFSET 24 +#define MACB_RX_SA3_MATCH_OFFSET 24 /* Specific address register 3 match */ #define MACB_RX_SA3_MATCH_SIZE 1 -#define MACB_RX_SA2_MATCH_OFFSET 25 +#define MACB_RX_SA2_MATCH_OFFSET 25 /* Specific address register 2 match */ #define MACB_RX_SA2_MATCH_SIZE 1 -#define MACB_RX_SA1_MATCH_OFFSET 26 +#define MACB_RX_SA1_MATCH_OFFSET 26 /* Specific address register 1 match */ #define MACB_RX_SA1_MATCH_SIZE 1 -#define MACB_RX_EXT_MATCH_OFFSET 28 +#define MACB_RX_EXT_MATCH_OFFSET 28 /* External address match */ #define MACB_RX_EXT_MATCH_SIZE 1 -#define MACB_RX_UHASH_MATCH_OFFSET 29 +#define MACB_RX_UHASH_MATCH_OFFSET 29 /* Unicast hash match */ #define MACB_RX_UHASH_MATCH_SIZE 1 -#define MACB_RX_MHASH_MATCH_OFFSET 30 +#define MACB_RX_MHASH_MATCH_OFFSET 30 /* Multicast hash match */ #define MACB_RX_MHASH_MATCH_SIZE 1 -#define MACB_RX_BROADCAST_OFFSET 31 +#define MACB_RX_BROADCAST_OFFSET 31 /* Global all ones broadcast addr detected */ #define MACB_RX_BROADCAST_SIZE 1 #define MACB_RX_FRMLEN_MASK 0xFFF @@ -612,11 +612,11 @@ struct macb_dma_desc_64 { #define GEM_RX_CSUM_OFFSET 22 #define GEM_RX_CSUM_SIZE 2 -#define MACB_TX_FRMLEN_OFFSET 0 +#define MACB_TX_FRMLEN_OFFSET 0 /* Length of buffer */ #define MACB_TX_FRMLEN_SIZE 11 -#define MACB_TX_LAST_OFFSET 15 +#define MACB_TX_LAST_OFFSET 15 /* Last buffer */ #define MACB_TX_LAST_SIZE 1 -#define MACB_TX_NOCRC_OFFSET 16 +#define MACB_TX_NOCRC_OFFSET 16 /* No CRC */ #define MACB_TX_NOCRC_SIZE 1 #define MACB_MSS_MFS_OFFSET 16 #define MACB_MSS_MFS_SIZE 14 @@ -624,15 +624,15 @@ struct macb_dma_desc_64 { #define MACB_TX_LSO_SIZE 2 #define MACB_TX_TCP_SEQ_SRC_OFFSET 19 #define MACB_TX_TCP_SEQ_SRC_SIZE 1 -#define MACB_TX_BUF_EXHAUSTED_OFFSET 27 +#define MACB_TX_BUF_EXHAUSTED_OFFSET 27 /* Buffers exhausted in mid frame */ #define MACB_TX_BUF_EXHAUSTED_SIZE 1 -#define MACB_TX_UNDERRUN_OFFSET 28 +#define MACB_TX_UNDERRUN_OFFSET 28 /* Transmit underrun */ #define MACB_TX_UNDERRUN_SIZE 1 -#define MACB_TX_ERROR_OFFSET 29 +#define MACB_TX_ERROR_OFFSET 29 /* Retry limit exceeded */ #define MACB_TX_ERROR_SIZE 1 -#define MACB_TX_WRAP_OFFSET 30 +#define MACB_TX_WRAP_OFFSET 30 /* Wrap */ #define MACB_TX_WRAP_SIZE 1 -#define MACB_TX_USED_OFFSET 31 +#define MACB_TX_USED_OFFSET 31 /* Used */ #define MACB_TX_USED_SIZE 1 #define GEM_TX_FRMLEN_OFFSET 0