[PATCH v2 19/21] net: thunderx: Configure tunnelling protocol parsing

Path	csiph.com!news.mixmin.net!aioe.org!gothmog.csi.it!bofh.it!news.nic.it!robomod
From	sunil.kovvuri@gmail.com
Newsgroups	linux.kernel
Subject	[PATCH v2 19/21] net: thunderx: Configure tunnelling protocol parsing
Date	Fri, 12 Aug 2016 13:30:02 +0200
Message-ID	<s5iP0-Yf-35@gated-at.bofh.it> (permalink)
References	<s5iOZ-Yf-3@gated-at.bofh.it>
Dkim-Signature	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=4EwcyI+iDJ6O7sT0oLXg1vam8E7CvA0biLWZUcMlTwU=; b=k+BAd090vKs2dyQCXWV/HV53Y/MqkdPJbaUi1S382gSLxtKgF/gf7Mq75yvAIkjtZy 3gsMTzqNfkzyYL0nrZHvRUg+prxzpRZLGe4ItFxEUWlCGszJEcCQHNZ5lyqzygyM2Cwb r8EVUW/NOoJJ85m4mWr/bIZYSYTw5w9Khbekzgy4MP7aslmP4ORbEls79dJFS7BNWTpm z3nWXwf6EETsp2LRx5wZGoYJzzxrNc07+957Cjhw5HyB7VWz6R0a8Rvj0a+fuQh/l1+m /gARl37c7Z3CIKWXqhehZPSh6sFal13etAd257nVV40KOo377twAr3h1pC+xNw3f0TAy RGKw==
X-Google-Dkim-Signature	v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=4EwcyI+iDJ6O7sT0oLXg1vam8E7CvA0biLWZUcMlTwU=; b=VxKp/L/rhw/9c4DOx3aCHsuzpgnw2+xrcOiHRJ44L0BbOGV9Y1OrWqJutFh/3kBZjR l7Dq+U1uVZwWafNLqu34vN6Q7mObFAWyAthSfBOxoa2lBg6VRiFxhZ0ME2RQT5abrlex Pcyrhg76GOWGVXRD699eJnCtGubjuX76DOzNlHYWhjue9JAOv+0AJ/yzQnbWeLTLvaHH 78hYvy8pVEFD98IljnhYGB8gQwYb1XSlb2oI4OBVxAMcLZcLUUBO5iNk/8pSkUvF4wi+ zlcQuZ55l1McAspDZ4dzIR7GUQg2LRbI2NwoBaUDk2SJ2kjVtklN61cfQoCsu0tfzNO+ YlKw==
X-Gm-Message-State	AEkoous0s9pB9FNb0dMbv3GIPRjDvSiqe0wCCKK3UNSCnwbVkemmHCc73T+sL+ZxuEbyXg==
X-Received	by 10.98.108.3 with SMTP id h3mr26173417pfc.162.1471000996035; Fri, 12 Aug 2016 04:23:16 -0700 (PDT)
X-Mailer	git-send-email 2.7.4
Sender	robomod@news.nic.it
List-ID	<linux-kernel.vger.kernel.org>
X-Mailing-List	linux-kernel@vger.kernel.org
Approved	robomod@news.nic.it
Lines	76
Organization	linux.* mail to news gateway
X-Original-Cc	linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Zyta Szpak <zr@semihalf.com>, Sunil Goutham <sgoutham@cavium.com>
X-Original-Date	Fri, 12 Aug 2016 16:51:42 +0530
X-Original-Message-ID	<1471000904-21715-20-git-send-email-sunil.kovvuri@gmail.com>
X-Original-References	<1471000904-21715-1-git-send-email-sunil.kovvuri@gmail.com>
X-Original-Sender	linux-kernel-owner@vger.kernel.org
Xref	csiph.com linux.kernel:1461101

Show key headers only | View raw

From: Zyta Szpak <zr@semihalf.com>

This patch enables parsing of inner layers for tunnelled packets.

Signed-off-by: Zyta Szpak <zr@semihalf.com>
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
---
 drivers/net/ethernet/cavium/thunder/nic_main.c | 21 +++++++++++++++++++++
 drivers/net/ethernet/cavium/thunder/nic_reg.h  | 13 +++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c
index 167291b..25618d2 100644
--- a/drivers/net/ethernet/cavium/thunder/nic_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nic_main.c
@@ -835,6 +835,25 @@ static int nic_reset_stat_counters(struct nicpf *nic,
 	return 0;
 }
 
+static void nic_enable_tunnel_parsing(struct nicpf *nic, int vf)
+{
+	u64 prot_def = (IPV6_PROT << 32) | (IPV4_PROT << 16) | ET_PROT;
+	u64 vxlan_prot_def = (IPV6_PROT_DEF << 32) |
+			      (IPV4_PROT_DEF) << 16 | ET_PROT_DEF;
+
+	/* Configure tunnel parsing parameters */
+	nic_reg_write(nic, NIC_PF_RX_GENEVE_DEF,
+		      (1ULL << 63 | UDP_GENEVE_PORT_NUM));
+	nic_reg_write(nic, NIC_PF_RX_GENEVE_PROT_DEF,
+		      ((7ULL << 61) | prot_def));
+	nic_reg_write(nic, NIC_PF_RX_NVGRE_PROT_DEF,
+		      ((7ULL << 61) | prot_def));
+	nic_reg_write(nic, NIC_PF_RX_VXLAN_DEF_0_1,
+		      ((1ULL << 63) | UDP_VXLAN_PORT_NUM));
+	nic_reg_write(nic, NIC_PF_RX_VXLAN_PROT_DEF,
+		      ((0xfULL << 60) | vxlan_prot_def));
+}
+
 static void nic_enable_vf(struct nicpf *nic, int vf, bool enable)
 {
 	int bgx, lmac;
@@ -908,6 +927,8 @@ static void nic_handle_mbx_intr(struct nicpf *nic, int vf)
 		 */
 		if (pass2_silicon(nic->pdev))
 			nic_reg_write(nic, NIC_PF_RX_CFG, 0x01);
+		if (!pass1_silicon(nic->pdev))
+			nic_enable_tunnel_parsing(nic, vf);
 		break;
 	case NIC_MBOX_MSG_RQ_BP_CFG:
 		reg_addr = NIC_PF_QSET_0_127_RQ_0_7_BP_CFG |
diff --git a/drivers/net/ethernet/cavium/thunder/nic_reg.h b/drivers/net/ethernet/cavium/thunder/nic_reg.h
index b4a7953..db9c632 100644
--- a/drivers/net/ethernet/cavium/thunder/nic_reg.h
+++ b/drivers/net/ethernet/cavium/thunder/nic_reg.h
@@ -36,6 +36,19 @@
 #define   NIC_PF_MAILBOX_ENA_W1C		(0x0450)
 #define   NIC_PF_MAILBOX_ENA_W1S		(0x0470)
 #define   NIC_PF_RX_ETYPE_0_7			(0x0500)
+#define   NIC_PF_RX_GENEVE_DEF			(0x0580)
+#define    UDP_GENEVE_PORT_NUM				0x17C1ULL
+#define   NIC_PF_RX_GENEVE_PROT_DEF		(0x0588)
+#define    IPV6_PROT					0x86DDULL
+#define    IPV4_PROT					0x800ULL
+#define    ET_PROT					0x6558ULL
+#define   NIC_PF_RX_NVGRE_PROT_DEF		(0x0598)
+#define   NIC_PF_RX_VXLAN_DEF_0_1		(0x05A0)
+#define    UDP_VXLAN_PORT_NUM				0x12B5
+#define   NIC_PF_RX_VXLAN_PROT_DEF		(0x05B0)
+#define    IPV6_PROT_DEF				0x2ULL
+#define    IPV4_PROT_DEF				0x1ULL
+#define    ET_PROT_DEF					0x3ULL
 #define   NIC_PF_RX_CFG				(0x05D0)
 #define   NIC_PF_PKIND_0_15_CFG			(0x0600)
 #define   NIC_PF_ECC0_FLIP0			(0x1000)
-- 
2.7.4

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH v2 19/21] net: thunderx: Configure tunnelling protocol parsing sunil.kovvuri@gmail.com - 2016-08-12 13:30 +0200

csiph-web