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[44.242.66.180]) by smtp.gmail.com with ESMTPSA id n26sm5966864eds.22.2021.03.10.02.12.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Mar 2021 02:12:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references; bh=O9yrkVVHqbfS1wxTV5lf3YHG4sWif/zskA4hK5tu15U=; b=Oti8FuJjvU+FA5rJvKdbQJQRVztMP7zyDQr0Z2+GDvxMaVU4RE8Gwl9ts+8K19ZJ9x NT1lRaNJ6zgSzUjUzEovD14MLMmBoa67OB4MT3KFcRUvNRsTKlinSC1l5xmNi/kCa3js CXaLpK0GPQp7al37dj88AdMmgd+Xv2H3MiA0J4gz55hmpY3uRW0sxVTWRZivDH/iTVy/ S5L9u9eK74ZHUdZNAvkZfHS0xAshugjjy9whAInHS/mm8T+yvy2ud2TsZhzhk9vMoIKj Y7uKpRUxx7tBgZeCgSHu7AyE86GgadHHv/uYJNow8E1CIeh3sz+WBiiUobCKW+4q4CO7 L55w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=O9yrkVVHqbfS1wxTV5lf3YHG4sWif/zskA4hK5tu15U=; b=tx6rk20rYpvzUQ1WuGLmfbFYXNcisDHsISPCSvecBBa0PeX8jqIaGIp51x33d8pY/F p9AuqoSU3EZicVDZosD4yjcqvWQqjCpSDU1yXsAaeBAQOBC5nUv+pmWXIYy5QaqXAmQF oEKaC7Mc2YJaYq2mhAc2Ji+DTRTN+aXTOA8rYOwgqItzH3rNtBUq9ZV0UQ6BPKPq6qGd kxMRQkP5nuFQP5do6edsKE8YUN3WDwk9NgLBgMnwcvU6bXPBDKCv1uUxCm0V/pXZnLc5 6i9/tbhK+JbAdNa3qnq1D/Hl0l7ayX8TgEEnm4vFAnzzdrqeUlHGnUTmeEgtHcd/tFlk +AVQ== X-Gm-Message-State: AOAM530F8qD9d+us3hYS42fHoTJoVujQv8kyP7dl5q3ftDLV6RDisVG/ 2xEtNMcQqgoCx59Z1S4vyrM= X-Google-Smtp-Source: ABdhPJy+HrUevT9GNbqGYjUnbHPP/X6/rsSretogl+z7y6Sqbg3zql3xakhV66VDuQrbk/oZskxIMQ== X-Received: by 2002:a17:906:68c5:: with SMTP id y5mr2841681ejr.371.1615371146008; Wed, 10 Mar 2021 02:12:26 -0800 (PST) From: Bin Meng To: Jason Wang , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Peter Maydell , qemu-devel@nongnu.org Subject: [PATCH 05/10] hw/net: i82596: Remove the logic of padding short frames in the receive path Date: Wed, 10 Mar 2021 18:11:52 +0800 Message-Id: <20210310101157.15136-6-bmeng.cn@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210310101157.15136-1-bmeng.cn@gmail.com> References: <20210310101157.15136-1-bmeng.cn@gmail.com> 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=2a00:1450:4864:20::632; envelope-from=bmeng.cn@gmail.com; helo=mail-ej1-x632.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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @gmail.com) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Now that we have implemented unified short frames padding in the QEMU networking codes, remove the same logic in the NIC codes. Signed-off-by: Bin Meng --- hw/net/i82596.c | 18 ------------------ 1 file changed, 18 deletions(-) diff --git a/hw/net/i82596.c b/hw/net/i82596.c index 055c3a1470..1eca2e2d81 100644 --- a/hw/net/i82596.c +++ b/hw/net/i82596.c @@ -73,10 +73,6 @@ enum commands { #define I596_EOF 0x8000 #define SIZE_MASK 0x3fff =20 -#define ETHER_TYPE_LEN 2 -#define VLAN_TCI_LEN 2 -#define VLAN_HLEN (ETHER_TYPE_LEN + VLAN_TCI_LEN) - /* various flags in the chip config registers */ #define I596_PREFETCH (s->config[0] & 0x80) #define I596_PROMISC (s->config[8] & 0x01) @@ -489,8 +485,6 @@ bool i82596_can_receive(NetClientState *nc) return true; } =20 -#define MIN_BUF_SIZE 60 - ssize_t i82596_receive(NetClientState *nc, const uint8_t *buf, size_t sz) { I82596State *s =3D qemu_get_nic_opaque(nc); @@ -501,7 +495,6 @@ ssize_t i82596_receive(NetClientState *nc, const uint8_= t *buf, size_t sz) size_t bufsz =3D sz; /* length of data in buf */ uint32_t crc; uint8_t *crc_ptr; - uint8_t buf1[MIN_BUF_SIZE + VLAN_HLEN]; static const uint8_t broadcast_macaddr[6] =3D { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; =20 @@ -584,17 +577,6 @@ ssize_t i82596_receive(NetClientState *nc, const uint8= _t *buf, size_t sz) } } =20 - /* if too small buffer, then expand it */ - if (len < MIN_BUF_SIZE + VLAN_HLEN) { - memcpy(buf1, buf, len); - memset(buf1 + len, 0, MIN_BUF_SIZE + VLAN_HLEN - len); - buf =3D buf1; - if (len < MIN_BUF_SIZE) { - len =3D MIN_BUF_SIZE; - } - bufsz =3D len; - } - /* Calculate the ethernet checksum (4 bytes) */ len +=3D 4; crc =3D cpu_to_be32(crc32(~0, buf, sz)); --=20 2.17.1