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[193.12.47.89]) by smtp.gmail.com with ESMTPSA id v11sm2975003ljp.63.2021.03.15.14.15.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Mar 2021 14:15:06 -0700 (PDT) From: Tobias Waldekranz To: davem@davemloft.net, kuba@kernel.org Cc: andrew@lunn.ch, vivien.didelot@gmail.com, f.fainelli@gmail.com, olteanv@gmail.com, netdev@vger.kernel.org Subject: [PATCH net-next 1/5] net: dsa: mv88e6xxx: Provide generic VTU iterator Date: Mon, 15 Mar 2021 22:13:56 +0100 Message-Id: <20210315211400.2805330-2-tobias@waldekranz.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210315211400.2805330-1-tobias@waldekranz.com> References: <20210315211400.2805330-1-tobias@waldekranz.com> MIME-Version: 1.0 Organization: Westermo Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Move the intricacies of correctly iterating over the VTU to a common implementation. Signed-off-by: Tobias Waldekranz Reviewed-by: Andrew Lunn --- drivers/net/dsa/mv88e6xxx/chip.c | 100 ++++++++++++++++++++----------- 1 file changed, 64 insertions(+), 36 deletions(-) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 903d619e08ed..c70d4b7db4f5 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -1481,6 +1481,37 @@ static int mv88e6xxx_vtu_getnext(struct mv88e6xxx_chip *chip, return chip->info->ops->vtu_getnext(chip, entry); } +static int mv88e6xxx_vtu_walk(struct mv88e6xxx_chip *chip, + int (*cb)(struct mv88e6xxx_chip *chip, + const struct mv88e6xxx_vtu_entry *entry, + void *priv), + void *priv) +{ + struct mv88e6xxx_vtu_entry entry = { + .vid = mv88e6xxx_max_vid(chip), + .valid = false, + }; + int err; + + if (!chip->info->ops->vtu_getnext) + return -EOPNOTSUPP; + + do { + err = chip->info->ops->vtu_getnext(chip, &entry); + if (err) + return err; + + if (!entry.valid) + break; + + err = cb(chip, &entry, priv); + if (err) + return err; + } while (entry.vid < mv88e6xxx_max_vid(chip)); + + return 0; +} + static int mv88e6xxx_vtu_loadpurge(struct mv88e6xxx_chip *chip, struct mv88e6xxx_vtu_entry *entry) { @@ -1490,9 +1521,18 @@ static int mv88e6xxx_vtu_loadpurge(struct mv88e6xxx_chip *chip, return chip->info->ops->vtu_loadpurge(chip, entry); } +static int mv88e6xxx_fid_map_vlan(struct mv88e6xxx_chip *chip, + const struct mv88e6xxx_vtu_entry *entry, + void *_fid_bitmap) +{ + unsigned long *fid_bitmap = _fid_bitmap; + + set_bit(entry->fid, fid_bitmap); + return 0; +} + int mv88e6xxx_fid_map(struct mv88e6xxx_chip *chip, unsigned long *fid_bitmap) { - struct mv88e6xxx_vtu_entry vlan; int i, err; u16 fid; @@ -1508,21 +1548,7 @@ int mv88e6xxx_fid_map(struct mv88e6xxx_chip *chip, unsigned long *fid_bitmap) } /* Set every FID bit used by the VLAN entries */ - vlan.vid = mv88e6xxx_max_vid(chip); - vlan.valid = false; - - do { - err = mv88e6xxx_vtu_getnext(chip, &vlan); - if (err) - return err; - - if (!vlan.valid) - break; - - set_bit(vlan.fid, fid_bitmap); - } while (vlan.vid < mv88e6xxx_max_vid(chip)); - - return 0; + return mv88e6xxx_vtu_walk(chip, mv88e6xxx_fid_map_vlan, fid_bitmap); } static int mv88e6xxx_atu_new(struct mv88e6xxx_chip *chip, u16 *fid) @@ -2168,10 +2194,30 @@ static int mv88e6xxx_port_db_dump_fid(struct mv88e6xxx_chip *chip, return err; } +struct mv88e6xxx_port_db_dump_vlan_ctx { + int port; + dsa_fdb_dump_cb_t *cb; + void *data; +}; + +static int mv88e6xxx_port_db_dump_vlan(struct mv88e6xxx_chip *chip, + const struct mv88e6xxx_vtu_entry *entry, + void *_data) +{ + struct mv88e6xxx_port_db_dump_vlan_ctx *ctx = _data; + + return mv88e6xxx_port_db_dump_fid(chip, entry->fid, entry->vid, + ctx->port, ctx->cb, ctx->data); +} + static int mv88e6xxx_port_db_dump(struct mv88e6xxx_chip *chip, int port, dsa_fdb_dump_cb_t *cb, void *data) { - struct mv88e6xxx_vtu_entry vlan; + struct mv88e6xxx_port_db_dump_vlan_ctx ctx = { + .port = port, + .cb = cb, + .data = data, + }; u16 fid; int err; @@ -2184,25 +2230,7 @@ static int mv88e6xxx_port_db_dump(struct mv88e6xxx_chip *chip, int port, if (err) return err; - /* Dump VLANs' Filtering Information Databases */ - vlan.vid = mv88e6xxx_max_vid(chip); - vlan.valid = false; - - do { - err = mv88e6xxx_vtu_getnext(chip, &vlan); - if (err) - return err; - - if (!vlan.valid) - break; - - err = mv88e6xxx_port_db_dump_fid(chip, vlan.fid, vlan.vid, port, - cb, data); - if (err) - return err; - } while (vlan.vid < mv88e6xxx_max_vid(chip)); - - return err; + return mv88e6xxx_vtu_walk(chip, mv88e6xxx_port_db_dump_vlan, &ctx); } static int mv88e6xxx_port_fdb_dump(struct dsa_switch *ds, int port,