Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937459AbdDZP7g (ORCPT ); Wed, 26 Apr 2017 11:59:36 -0400 Received: from mail.savoirfairelinux.com ([208.88.110.44]:39132 "EHLO mail.savoirfairelinux.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935523AbdDZPzp (ORCPT ); Wed, 26 Apr 2017 11:55:45 -0400 From: Vivien Didelot To: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel@savoirfairelinux.com, "David S. Miller" , Florian Fainelli , Andrew Lunn , Vivien Didelot Subject: [PATCH net-next 08/18] net: dsa: mv88e6xxx: move generic VTU GetNext Date: Wed, 26 Apr 2017 11:53:26 -0400 Message-Id: <20170426155336.5937-9-vivien.didelot@savoirfairelinux.com> X-Mailer: git-send-email 2.12.2 In-Reply-To: <20170426155336.5937-1-vivien.didelot@savoirfairelinux.com> References: <20170426155336.5937-1-vivien.didelot@savoirfairelinux.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4540 Lines: 145 Even though every switch model has a different way to access the VTU Data bits, the base implementation of the VTU GetNext operation remains the same: wait, write the first VID to iterate from, start the operation, and read the next VID. Move this generic implementation into global_vtu.c and abstract the handling of the start VID (similarly to the ATU GetNext implementation), before introducing a new chip operation for specific chips. Signed-off-by: Vivien Didelot --- drivers/net/dsa/mv88e6xxx/chip.c | 31 ++----------------------------- drivers/net/dsa/mv88e6xxx/global1.h | 2 ++ drivers/net/dsa/mv88e6xxx/global1_vtu.c | 23 +++++++++++++++++++++++ 3 files changed, 27 insertions(+), 29 deletions(-) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index dce490e78347..70b420e134ce 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -1340,19 +1340,11 @@ static int mv88e6xxx_stu_data_write(struct mv88e6xxx_chip *chip, static int _mv88e6xxx_vtu_getnext(struct mv88e6xxx_chip *chip, struct mv88e6xxx_vtu_entry *entry) { - struct mv88e6xxx_vtu_entry next = { 0 }; + struct mv88e6xxx_vtu_entry next = *entry; u16 val; int err; - err = mv88e6xxx_g1_vtu_op_wait(chip); - if (err) - return err; - - err = mv88e6xxx_g1_vtu_op(chip, GLOBAL_VTU_OP_VTU_GET_NEXT); - if (err) - return err; - - err = mv88e6xxx_g1_vtu_vid_read(chip, &next); + err = mv88e6xxx_g1_vtu_getnext(chip, &next); if (err) return err; @@ -1416,10 +1408,6 @@ static int mv88e6xxx_port_vlan_dump(struct dsa_switch *ds, int port, if (err) goto unlock; - err = mv88e6xxx_g1_vtu_vid_write(chip, &next); - if (err) - goto unlock; - do { err = _mv88e6xxx_vtu_getnext(chip, &next); if (err) @@ -1582,10 +1570,6 @@ static int mv88e6xxx_atu_new(struct mv88e6xxx_chip *chip, u16 *fid) } /* Set every FID bit used by the VLAN entries */ - err = mv88e6xxx_g1_vtu_vid_write(chip, &vlan); - if (err) - return err; - do { err = _mv88e6xxx_vtu_getnext(chip, &vlan); if (err) @@ -1668,9 +1652,6 @@ static int _mv88e6xxx_vtu_get(struct mv88e6xxx_chip *chip, u16 vid, entry->vid = vid - 1; entry->valid = false; - err = mv88e6xxx_g1_vtu_vid_write(chip, entry); - if (err) - return err; err = _mv88e6xxx_vtu_getnext(chip, entry); if (err) @@ -1703,10 +1684,6 @@ static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port, mutex_lock(&chip->reg_lock); - err = mv88e6xxx_g1_vtu_vid_write(chip, &vlan); - if (err) - goto unlock; - do { err = _mv88e6xxx_vtu_getnext(chip, &vlan); if (err) @@ -2065,10 +2042,6 @@ static int mv88e6xxx_port_db_dump(struct mv88e6xxx_chip *chip, int port, return err; /* Dump VLANs' Filtering Information Databases */ - err = mv88e6xxx_g1_vtu_vid_write(chip, &vlan); - if (err) - return err; - do { err = _mv88e6xxx_vtu_getnext(chip, &vlan); if (err) diff --git a/drivers/net/dsa/mv88e6xxx/global1.h b/drivers/net/dsa/mv88e6xxx/global1.h index 22fe22bd82cd..66216848fc0d 100644 --- a/drivers/net/dsa/mv88e6xxx/global1.h +++ b/drivers/net/dsa/mv88e6xxx/global1.h @@ -64,6 +64,8 @@ int mv88e6xxx_g1_vtu_vid_write(struct mv88e6xxx_chip *chip, struct mv88e6xxx_vtu_entry *entry); int mv88e6xxx_g1_vtu_op_wait(struct mv88e6xxx_chip *chip); int mv88e6xxx_g1_vtu_op(struct mv88e6xxx_chip *chip, u16 op); +int mv88e6xxx_g1_vtu_getnext(struct mv88e6xxx_chip *chip, + struct mv88e6xxx_vtu_entry *entry); int mv88e6xxx_g1_vtu_flush(struct mv88e6xxx_chip *chip); #endif /* _MV88E6XXX_GLOBAL1_H */ diff --git a/drivers/net/dsa/mv88e6xxx/global1_vtu.c b/drivers/net/dsa/mv88e6xxx/global1_vtu.c index 6ac3d0eeae6b..efe43d7d9e10 100644 --- a/drivers/net/dsa/mv88e6xxx/global1_vtu.c +++ b/drivers/net/dsa/mv88e6xxx/global1_vtu.c @@ -113,6 +113,29 @@ int mv88e6xxx_g1_vtu_vid_write(struct mv88e6xxx_chip *chip, /* VLAN Translation Unit Operations */ +int mv88e6xxx_g1_vtu_getnext(struct mv88e6xxx_chip *chip, + struct mv88e6xxx_vtu_entry *entry) +{ + int err; + + err = mv88e6xxx_g1_vtu_op_wait(chip); + if (err) + return err; + + /* Write the VID to iterate from only once */ + if (!entry->valid) { + err = mv88e6xxx_g1_vtu_vid_write(chip, entry); + if (err) + return err; + } + + err = mv88e6xxx_g1_vtu_op(chip, GLOBAL_VTU_OP_VTU_GET_NEXT); + if (err) + return err; + + return mv88e6xxx_g1_vtu_vid_read(chip, entry); +} + int mv88e6xxx_g1_vtu_flush(struct mv88e6xxx_chip *chip) { int err; -- 2.12.2