Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933624AbbFWVql (ORCPT ); Tue, 23 Jun 2015 17:46:41 -0400 Received: from mail.savoirfairelinux.com ([209.172.62.77]:61296 "EHLO mail.savoirfairelinux.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932715AbbFWVqT (ORCPT ); Tue, 23 Jun 2015 17:46:19 -0400 From: Vivien Didelot To: netdev@vger.kernel.org Cc: Vivien Didelot , "David S. Miller" , Andrew Lunn , Florian Fainelli , Guenter Roeck , linux-kernel@vger.kernel.org, kernel@savoirfairelinux.com Subject: [PATCH 2/3] net: dsa: mv88e6xxx: add support to dump VLANs Date: Tue, 23 Jun 2015 17:46:09 -0400 Message-Id: <1435095970-18576-3-git-send-email-vivien.didelot@savoirfairelinux.com> X-Mailer: git-send-email 2.4.4 In-Reply-To: <1435095970-18576-1-git-send-email-vivien.didelot@savoirfairelinux.com> References: <1435095970-18576-1-git-send-email-vivien.didelot@savoirfairelinux.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3099 Lines: 112 This commit implements the port_vlan_dump function in the dsa_switch_driver structure for Marvell 88E6xxx compatible switches. This allows to access a switch VLAN Table Unit from standard userspace commands such as "bridge vlan show". A populated VTU can give the following output: # bridge vlan port vlan ids swp0 None swp0 swp1 None swp1 swp2 1000 1200 swp2 1000 1200 swp3 550 PVID Egress Untagged swp3 550 PVID Egress Untagged swp4 1200 swp4 1200 br0 None Signed-off-by: Vivien Didelot --- drivers/net/dsa/mv88e6xxx.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ drivers/net/dsa/mv88e6xxx.h | 2 ++ 2 files changed, 46 insertions(+) diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c index 0dce8e8..0d63bf6 100644 --- a/drivers/net/dsa/mv88e6xxx.c +++ b/drivers/net/dsa/mv88e6xxx.c @@ -1441,6 +1441,50 @@ static int _mv88e6xxx_vtu_getnext(struct dsa_switch *ds, u16 vid, return 0; } +int mv88e6xxx_port_vlan_dump(struct dsa_switch *ds, int port, u16 vid, + u16 *bridge_flags) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + struct mv88e6xxx_vtu_entry entry = { 0 }; + int prev_vid = vid ? vid - 1 : 4095; + int ret; + + mutex_lock(&ps->smi_mutex); + ret = _mv88e6xxx_vtu_getnext(ds, prev_vid, &entry); + if (ret < 0) + goto unlock; + + if (entry.vid != vid || !entry.valid) { + ret = -ENOENT; + goto unlock; + } + + switch (entry.tags[port]) { + case GLOBAL_VTU_DATA_MEMBER_TAG_UNTAGGED: + *bridge_flags |= BRIDGE_VLAN_INFO_UNTAGGED; + /* fall through... */ + case GLOBAL_VTU_DATA_MEMBER_TAG_TAGGED: + break; + default: + ret = -EINVAL; + goto unlock; + } + + /* check PVID */ + ret = _mv88e6xxx_reg_read(ds, REG_PORT(port), PORT_DEFAULT_VLAN); + if (ret < 0) + goto unlock; + + if ((ret & PORT_DEFAULT_VLAN_MASK) == vid) + *bridge_flags |= BRIDGE_VLAN_INFO_PVID; + + ret = 0; +unlock: + mutex_unlock(&ps->smi_mutex); + + return ret; +} + static int mv88e6xxx_setup_port(struct dsa_switch *ds, int port) { struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h index 798b6b8..7b75c2b 100644 --- a/drivers/net/dsa/mv88e6xxx.h +++ b/drivers/net/dsa/mv88e6xxx.h @@ -440,6 +440,8 @@ int mv88e6xxx_port_fdb_getnext(struct dsa_switch *ds, int port, int mv88e6xxx_phy_page_read(struct dsa_switch *ds, int port, int page, int reg); int mv88e6xxx_phy_page_write(struct dsa_switch *ds, int port, int page, int reg, int val); +int mv88e6xxx_port_vlan_dump(struct dsa_switch *ds,int port, u16 vid, + u16 *bridge_flags); extern struct dsa_switch_driver mv88e6131_switch_driver; extern struct dsa_switch_driver mv88e6123_61_65_switch_driver; extern struct dsa_switch_driver mv88e6352_switch_driver; -- 2.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/