From ec818e5d291169784f183680c2b4013174324b68 Mon Sep 17 00:00:00 2001 From: Ansuel Smith Date: Sun, 19 Dec 2021 03:37:53 +0100 Subject: [PATCH] generic: 5.15: backport mirror mode and LAG feature for qca8k Backport LAG and mirror mode feature for qca8k. Signed-off-by: Ansuel Smith --- ...sa-qca8k-add-support-for-mirror-mode.patch | 162 ++++++++++ ...t-next-net-dsa-qca8k-add-LAG-support.patch | 295 ++++++++++++++++++ ...dsa-qca8k-fix-warning-in-LAG-feature.patch | 45 +++ 3 files changed, 502 insertions(+) create mode 100644 target/linux/generic/backport-5.15/762-net-next-net-dsa-qca8k-add-support-for-mirror-mode.patch create mode 100644 target/linux/generic/backport-5.15/763-net-next-net-dsa-qca8k-add-LAG-support.patch create mode 100644 target/linux/generic/backport-5.15/764-net-next-net-dsa-qca8k-fix-warning-in-LAG-feature.patch diff --git a/target/linux/generic/backport-5.15/762-net-next-net-dsa-qca8k-add-support-for-mirror-mode.patch b/target/linux/generic/backport-5.15/762-net-next-net-dsa-qca8k-add-support-for-mirror-mode.patch new file mode 100644 index 00000000000..4ebdfda6513 --- /dev/null +++ b/target/linux/generic/backport-5.15/762-net-next-net-dsa-qca8k-add-support-for-mirror-mode.patch @@ -0,0 +1,162 @@ +From 2c1bdbc7e7560d7de754cad277d968d56bb1899e Mon Sep 17 00:00:00 2001 +From: Ansuel Smith +Date: Tue, 23 Nov 2021 03:59:10 +0100 +Subject: net: dsa: qca8k: add support for mirror mode + +The switch supports mirror mode. Only one port can set as mirror port and +every other port can set to both ingress and egress mode. The mirror +port is disabled and reverted to normal operation once every port is +removed from sending packet to it. + +Signed-off-by: Ansuel Smith +Signed-off-by: David S. Miller +--- + drivers/net/dsa/qca8k.c | 95 +++++++++++++++++++++++++++++++++++++++++++++++++ + drivers/net/dsa/qca8k.h | 4 +++ + 2 files changed, 99 insertions(+) + +diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c +index 67742fbd80409..bd9d756f40011 100644 +--- a/drivers/net/dsa/qca8k.c ++++ b/drivers/net/dsa/qca8k.c +@@ -2022,6 +2022,99 @@ qca8k_port_mdb_del(struct dsa_switch *ds, int port, + return qca8k_fdb_search_and_del(priv, BIT(port), addr, vid); + } + ++static int ++qca8k_port_mirror_add(struct dsa_switch *ds, int port, ++ struct dsa_mall_mirror_tc_entry *mirror, ++ bool ingress) ++{ ++ struct qca8k_priv *priv = ds->priv; ++ int monitor_port, ret; ++ u32 reg, val; ++ ++ /* Check for existent entry */ ++ if ((ingress ? priv->mirror_rx : priv->mirror_tx) & BIT(port)) ++ return -EEXIST; ++ ++ ret = regmap_read(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0, &val); ++ if (ret) ++ return ret; ++ ++ /* QCA83xx can have only one port set to mirror mode. ++ * Check that the correct port is requested and return error otherwise. ++ * When no mirror port is set, the values is set to 0xF ++ */ ++ monitor_port = FIELD_GET(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val); ++ if (monitor_port != 0xF && monitor_port != mirror->to_local_port) ++ return -EEXIST; ++ ++ /* Set the monitor port */ ++ val = FIELD_PREP(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, ++ mirror->to_local_port); ++ ret = regmap_update_bits(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0, ++ QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val); ++ if (ret) ++ return ret; ++ ++ if (ingress) { ++ reg = QCA8K_PORT_LOOKUP_CTRL(port); ++ val = QCA8K_PORT_LOOKUP_ING_MIRROR_EN; ++ } else { ++ reg = QCA8K_REG_PORT_HOL_CTRL1(port); ++ val = QCA8K_PORT_HOL_CTRL1_EG_MIRROR_EN; ++ } ++ ++ ret = regmap_update_bits(priv->regmap, reg, val, val); ++ if (ret) ++ return ret; ++ ++ /* Track mirror port for tx and rx to decide when the ++ * mirror port has to be disabled. ++ */ ++ if (ingress) ++ priv->mirror_rx |= BIT(port); ++ else ++ priv->mirror_tx |= BIT(port); ++ ++ return 0; ++} ++ ++static void ++qca8k_port_mirror_del(struct dsa_switch *ds, int port, ++ struct dsa_mall_mirror_tc_entry *mirror) ++{ ++ struct qca8k_priv *priv = ds->priv; ++ u32 reg, val; ++ int ret; ++ ++ if (mirror->ingress) { ++ reg = QCA8K_PORT_LOOKUP_CTRL(port); ++ val = QCA8K_PORT_LOOKUP_ING_MIRROR_EN; ++ } else { ++ reg = QCA8K_REG_PORT_HOL_CTRL1(port); ++ val = QCA8K_PORT_HOL_CTRL1_EG_MIRROR_EN; ++ } ++ ++ ret = regmap_clear_bits(priv->regmap, reg, val); ++ if (ret) ++ goto err; ++ ++ if (mirror->ingress) ++ priv->mirror_rx &= ~BIT(port); ++ else ++ priv->mirror_tx &= ~BIT(port); ++ ++ /* No port set to send packet to mirror port. Disable mirror port */ ++ if (!priv->mirror_rx && !priv->mirror_tx) { ++ val = FIELD_PREP(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, 0xF); ++ ret = regmap_update_bits(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0, ++ QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val); ++ if (ret) ++ goto err; ++ } ++err: ++ dev_err(priv->dev, "Failed to del mirror port from %d", port); ++} ++ + static int + qca8k_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering, + struct netlink_ext_ack *extack) +@@ -2132,6 +2225,8 @@ static const struct dsa_switch_ops qca8k_switch_ops = { + .port_fdb_dump = qca8k_port_fdb_dump, + .port_mdb_add = qca8k_port_mdb_add, + .port_mdb_del = qca8k_port_mdb_del, ++ .port_mirror_add = qca8k_port_mirror_add, ++ .port_mirror_del = qca8k_port_mirror_del, + .port_vlan_filtering = qca8k_port_vlan_filtering, + .port_vlan_add = qca8k_port_vlan_add, + .port_vlan_del = qca8k_port_vlan_del, +diff --git a/drivers/net/dsa/qca8k.h b/drivers/net/dsa/qca8k.h +index 40ec8012622f7..7c87a968c0104 100644 +--- a/drivers/net/dsa/qca8k.h ++++ b/drivers/net/dsa/qca8k.h +@@ -180,6 +180,7 @@ + #define QCA8K_ATU_AGE_TIME(x) FIELD_PREP(QCA8K_ATU_AGE_TIME_MASK, (x)) + #define QCA8K_REG_GLOBAL_FW_CTRL0 0x620 + #define QCA8K_GLOBAL_FW_CTRL0_CPU_PORT_EN BIT(10) ++#define QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM GENMASK(7, 4) + #define QCA8K_REG_GLOBAL_FW_CTRL1 0x624 + #define QCA8K_GLOBAL_FW_CTRL1_IGMP_DP_MASK GENMASK(30, 24) + #define QCA8K_GLOBAL_FW_CTRL1_BC_DP_MASK GENMASK(22, 16) +@@ -201,6 +202,7 @@ + #define QCA8K_PORT_LOOKUP_STATE_LEARNING QCA8K_PORT_LOOKUP_STATE(0x3) + #define QCA8K_PORT_LOOKUP_STATE_FORWARD QCA8K_PORT_LOOKUP_STATE(0x4) + #define QCA8K_PORT_LOOKUP_LEARN BIT(20) ++#define QCA8K_PORT_LOOKUP_ING_MIRROR_EN BIT(25) + + #define QCA8K_REG_GLOBAL_FC_THRESH 0x800 + #define QCA8K_GLOBAL_FC_GOL_XON_THRES_MASK GENMASK(24, 16) +@@ -305,6 +307,8 @@ struct qca8k_ports_config { + struct qca8k_priv { + u8 switch_id; + u8 switch_revision; ++ u8 mirror_rx; ++ u8 mirror_tx; + bool legacy_phy_port_mapping; + struct qca8k_ports_config ports_config; + struct regmap *regmap; +-- +cgit 1.2.3-1.el7 + diff --git a/target/linux/generic/backport-5.15/763-net-next-net-dsa-qca8k-add-LAG-support.patch b/target/linux/generic/backport-5.15/763-net-next-net-dsa-qca8k-add-LAG-support.patch new file mode 100644 index 00000000000..99672118288 --- /dev/null +++ b/target/linux/generic/backport-5.15/763-net-next-net-dsa-qca8k-add-LAG-support.patch @@ -0,0 +1,295 @@ +From def975307c01191b6f0170048c3724b0ed3348af Mon Sep 17 00:00:00 2001 +From: Ansuel Smith +Date: Tue, 23 Nov 2021 03:59:11 +0100 +Subject: net: dsa: qca8k: add LAG support + +Add LAG support to this switch. In Documentation this is described as +trunk mode. A max of 4 LAGs are supported and each can support up to 4 +port. The current tx mode supported is Hash mode with both L2 and L2+3 +mode. +When no port are present in the trunk, the trunk is disabled in the +switch. +When a port is disconnected, the traffic is redirected to the other +available port. +The hash mode is global and each LAG require to have the same hash mode +set. To change the hash mode when multiple LAG are configured, it's +required to remove each LAG and set the desired hash mode to the last. +An error is printed when it's asked to set a not supported hadh mode. + +Signed-off-by: Ansuel Smith +Signed-off-by: David S. Miller +--- + drivers/net/dsa/qca8k.c | 177 ++++++++++++++++++++++++++++++++++++++++++++++++ + drivers/net/dsa/qca8k.h | 33 +++++++++ + 2 files changed, 210 insertions(+) + +diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c +index bd9d756f40011..6516df08a5d5f 100644 +--- a/drivers/net/dsa/qca8k.c ++++ b/drivers/net/dsa/qca8k.c +@@ -1336,6 +1336,9 @@ qca8k_setup(struct dsa_switch *ds) + ds->ageing_time_min = 7000; + ds->ageing_time_max = 458745000; + ++ /* Set max number of LAGs supported */ ++ ds->num_lag_ids = QCA8K_NUM_LAGS; ++ + return 0; + } + +@@ -2203,6 +2206,178 @@ qca8k_get_tag_protocol(struct dsa_switch *ds, int port, + return DSA_TAG_PROTO_QCA; + } + ++static bool ++qca8k_lag_can_offload(struct dsa_switch *ds, ++ struct net_device *lag, ++ struct netdev_lag_upper_info *info) ++{ ++ struct dsa_port *dp; ++ int id, members = 0; ++ ++ id = dsa_lag_id(ds->dst, lag); ++ if (id < 0 || id >= ds->num_lag_ids) ++ return false; ++ ++ dsa_lag_foreach_port(dp, ds->dst, lag) ++ /* Includes the port joining the LAG */ ++ members++; ++ ++ if (members > QCA8K_NUM_PORTS_FOR_LAG) ++ return false; ++ ++ if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH) ++ return false; ++ ++ if (info->hash_type != NETDEV_LAG_HASH_L2 || ++ info->hash_type != NETDEV_LAG_HASH_L23) ++ return false; ++ ++ return true; ++} ++ ++static int ++qca8k_lag_setup_hash(struct dsa_switch *ds, ++ struct net_device *lag, ++ struct netdev_lag_upper_info *info) ++{ ++ struct qca8k_priv *priv = ds->priv; ++ bool unique_lag = true; ++ int i, id; ++ u32 hash; ++ ++ id = dsa_lag_id(ds->dst, lag); ++ ++ switch (info->hash_type) { ++ case NETDEV_LAG_HASH_L23: ++ hash |= QCA8K_TRUNK_HASH_SIP_EN; ++ hash |= QCA8K_TRUNK_HASH_DIP_EN; ++ fallthrough; ++ case NETDEV_LAG_HASH_L2: ++ hash |= QCA8K_TRUNK_HASH_SA_EN; ++ hash |= QCA8K_TRUNK_HASH_DA_EN; ++ break; ++ default: /* We should NEVER reach this */ ++ return -EOPNOTSUPP; ++ } ++ ++ /* Check if we are the unique configured LAG */ ++ dsa_lags_foreach_id(i, ds->dst) ++ if (i != id && dsa_lag_dev(ds->dst, i)) { ++ unique_lag = false; ++ break; ++ } ++ ++ /* Hash Mode is global. Make sure the same Hash Mode ++ * is set to all the 4 possible lag. ++ * If we are the unique LAG we can set whatever hash ++ * mode we want. ++ * To change hash mode it's needed to remove all LAG ++ * and change the mode with the latest. ++ */ ++ if (unique_lag) { ++ priv->lag_hash_mode = hash; ++ } else if (priv->lag_hash_mode != hash) { ++ netdev_err(lag, "Error: Mismateched Hash Mode across different lag is not supported\n"); ++ return -EOPNOTSUPP; ++ } ++ ++ return regmap_update_bits(priv->regmap, QCA8K_TRUNK_HASH_EN_CTRL, ++ QCA8K_TRUNK_HASH_MASK, hash); ++} ++ ++static int ++qca8k_lag_refresh_portmap(struct dsa_switch *ds, int port, ++ struct net_device *lag, bool delete) ++{ ++ struct qca8k_priv *priv = ds->priv; ++ int ret, id, i; ++ u32 val; ++ ++ id = dsa_lag_id(ds->dst, lag); ++ ++ /* Read current port member */ ++ ret = regmap_read(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL0, &val); ++ if (ret) ++ return ret; ++ ++ /* Shift val to the correct trunk */ ++ val >>= QCA8K_REG_GOL_TRUNK_SHIFT(id); ++ val &= QCA8K_REG_GOL_TRUNK_MEMBER_MASK; ++ if (delete) ++ val &= ~BIT(port); ++ else ++ val |= BIT(port); ++ ++ /* Update port member. With empty portmap disable trunk */ ++ ret = regmap_update_bits(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL0, ++ QCA8K_REG_GOL_TRUNK_MEMBER(id) | ++ QCA8K_REG_GOL_TRUNK_EN(id), ++ !val << QCA8K_REG_GOL_TRUNK_SHIFT(id) | ++ val << QCA8K_REG_GOL_TRUNK_SHIFT(id)); ++ ++ /* Search empty member if adding or port on deleting */ ++ for (i = 0; i < QCA8K_NUM_PORTS_FOR_LAG; i++) { ++ ret = regmap_read(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL(id), &val); ++ if (ret) ++ return ret; ++ ++ val >>= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i); ++ val &= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_MASK; ++ ++ if (delete) { ++ /* If port flagged to be disabled assume this member is ++ * empty ++ */ ++ if (val != QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN_MASK) ++ continue; ++ ++ val &= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT_MASK; ++ if (val != port) ++ continue; ++ } else { ++ /* If port flagged to be enabled assume this member is ++ * already set ++ */ ++ if (val == QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN_MASK) ++ continue; ++ } ++ ++ /* We have found the member to add/remove */ ++ break; ++ } ++ ++ /* Set port in the correct port mask or disable port if in delete mode */ ++ return regmap_update_bits(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL(id), ++ QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN(id, i) | ++ QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT(id, i), ++ !delete << QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i) | ++ port << QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i)); ++} ++ ++static int ++qca8k_port_lag_join(struct dsa_switch *ds, int port, ++ struct net_device *lag, ++ struct netdev_lag_upper_info *info) ++{ ++ int ret; ++ ++ if (!qca8k_lag_can_offload(ds, lag, info)) ++ return -EOPNOTSUPP; ++ ++ ret = qca8k_lag_setup_hash(ds, lag, info); ++ if (ret) ++ return ret; ++ ++ return qca8k_lag_refresh_portmap(ds, port, lag, false); ++} ++ ++static int ++qca8k_port_lag_leave(struct dsa_switch *ds, int port, ++ struct net_device *lag) ++{ ++ return qca8k_lag_refresh_portmap(ds, port, lag, true); ++} ++ + static const struct dsa_switch_ops qca8k_switch_ops = { + .get_tag_protocol = qca8k_get_tag_protocol, + .setup = qca8k_setup, +@@ -2236,6 +2411,8 @@ static const struct dsa_switch_ops qca8k_switch_ops = { + .phylink_mac_link_down = qca8k_phylink_mac_link_down, + .phylink_mac_link_up = qca8k_phylink_mac_link_up, + .get_phy_flags = qca8k_get_phy_flags, ++ .port_lag_join = qca8k_port_lag_join, ++ .port_lag_leave = qca8k_port_lag_leave, + }; + + static int qca8k_read_switch_id(struct qca8k_priv *priv) +diff --git a/drivers/net/dsa/qca8k.h b/drivers/net/dsa/qca8k.h +index 7c87a968c0104..ab4a417b25a9c 100644 +--- a/drivers/net/dsa/qca8k.h ++++ b/drivers/net/dsa/qca8k.h +@@ -15,6 +15,8 @@ + #define QCA8K_NUM_PORTS 7 + #define QCA8K_NUM_CPU_PORTS 2 + #define QCA8K_MAX_MTU 9000 ++#define QCA8K_NUM_LAGS 4 ++#define QCA8K_NUM_PORTS_FOR_LAG 4 + + #define PHY_ID_QCA8327 0x004dd034 + #define QCA8K_ID_QCA8327 0x12 +@@ -122,6 +124,14 @@ + #define QCA8K_REG_EEE_CTRL 0x100 + #define QCA8K_REG_EEE_CTRL_LPI_EN(_i) ((_i + 1) * 2) + ++/* TRUNK_HASH_EN registers */ ++#define QCA8K_TRUNK_HASH_EN_CTRL 0x270 ++#define QCA8K_TRUNK_HASH_SIP_EN BIT(3) ++#define QCA8K_TRUNK_HASH_DIP_EN BIT(2) ++#define QCA8K_TRUNK_HASH_SA_EN BIT(1) ++#define QCA8K_TRUNK_HASH_DA_EN BIT(0) ++#define QCA8K_TRUNK_HASH_MASK GENMASK(3, 0) ++ + /* ACL registers */ + #define QCA8K_REG_PORT_VLAN_CTRL0(_i) (0x420 + (_i * 8)) + #define QCA8K_PORT_VLAN_CVID_MASK GENMASK(27, 16) +@@ -204,6 +214,28 @@ + #define QCA8K_PORT_LOOKUP_LEARN BIT(20) + #define QCA8K_PORT_LOOKUP_ING_MIRROR_EN BIT(25) + ++#define QCA8K_REG_GOL_TRUNK_CTRL0 0x700 ++/* 4 max trunk first ++ * first 6 bit for member bitmap ++ * 7th bit is to enable trunk port ++ */ ++#define QCA8K_REG_GOL_TRUNK_SHIFT(_i) ((_i) * 8) ++#define QCA8K_REG_GOL_TRUNK_EN_MASK BIT(7) ++#define QCA8K_REG_GOL_TRUNK_EN(_i) (QCA8K_REG_GOL_TRUNK_EN_MASK << QCA8K_REG_GOL_TRUNK_SHIFT(_i)) ++#define QCA8K_REG_GOL_TRUNK_MEMBER_MASK GENMASK(6, 0) ++#define QCA8K_REG_GOL_TRUNK_MEMBER(_i) (QCA8K_REG_GOL_TRUNK_MEMBER_MASK << QCA8K_REG_GOL_TRUNK_SHIFT(_i)) ++/* 0x704 for TRUNK 0-1 --- 0x708 for TRUNK 2-3 */ ++#define QCA8K_REG_GOL_TRUNK_CTRL(_i) (0x704 + (((_i) / 2) * 4)) ++#define QCA8K_REG_GOL_TRUNK_ID_MEM_ID_MASK GENMASK(3, 0) ++#define QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN_MASK BIT(3) ++#define QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT_MASK GENMASK(2, 0) ++#define QCA8K_REG_GOL_TRUNK_ID_SHIFT(_i) (((_i) / 2) * 16) ++#define QCA8K_REG_GOL_MEM_ID_SHIFT(_i) ((_i) * 4) ++/* Complex shift: FIRST shift for port THEN shift for trunk */ ++#define QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(_i, _j) (QCA8K_REG_GOL_MEM_ID_SHIFT(_j) + QCA8K_REG_GOL_TRUNK_ID_SHIFT(_i)) ++#define QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN(_i, _j) (QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN_MASK << QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(_i, _j)) ++#define QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT(_i, _j) (QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT_MASK << QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(_i, _j)) ++ + #define QCA8K_REG_GLOBAL_FC_THRESH 0x800 + #define QCA8K_GLOBAL_FC_GOL_XON_THRES_MASK GENMASK(24, 16) + #define QCA8K_GLOBAL_FC_GOL_XON_THRES(x) FIELD_PREP(QCA8K_GLOBAL_FC_GOL_XON_THRES_MASK, x) +@@ -309,6 +341,7 @@ struct qca8k_priv { + u8 switch_revision; + u8 mirror_rx; + u8 mirror_tx; ++ u8 lag_hash_mode; + bool legacy_phy_port_mapping; + struct qca8k_ports_config ports_config; + struct regmap *regmap; +-- +cgit 1.2.3-1.el7 + diff --git a/target/linux/generic/backport-5.15/764-net-next-net-dsa-qca8k-fix-warning-in-LAG-feature.patch b/target/linux/generic/backport-5.15/764-net-next-net-dsa-qca8k-fix-warning-in-LAG-feature.patch new file mode 100644 index 00000000000..2bde4400930 --- /dev/null +++ b/target/linux/generic/backport-5.15/764-net-next-net-dsa-qca8k-fix-warning-in-LAG-feature.patch @@ -0,0 +1,45 @@ +From 0898ca67b86e14207d4feb3f3fea8b87cec5aab1 Mon Sep 17 00:00:00 2001 +From: Ansuel Smith +Date: Tue, 23 Nov 2021 16:44:46 +0100 +Subject: net: dsa: qca8k: fix warning in LAG feature + +Fix warning reported by bot. +Make sure hash is init to 0 and fix wrong logic for hash_type in +qca8k_lag_can_offload. + +Reported-by: kernel test robot +Fixes: def975307c01 ("net: dsa: qca8k: add LAG support") +Signed-off-by: Ansuel Smith +Reviewed-by: Florian Fainelli +Link: https://lore.kernel.org/r/20211123154446.31019-1-ansuelsmth@gmail.com +Signed-off-by: Jakub Kicinski +--- + drivers/net/dsa/qca8k.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c +index 6516df08a5d5f..d04b25eca2503 100644 +--- a/drivers/net/dsa/qca8k.c ++++ b/drivers/net/dsa/qca8k.c +@@ -2228,7 +2228,7 @@ qca8k_lag_can_offload(struct dsa_switch *ds, + if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH) + return false; + +- if (info->hash_type != NETDEV_LAG_HASH_L2 || ++ if (info->hash_type != NETDEV_LAG_HASH_L2 && + info->hash_type != NETDEV_LAG_HASH_L23) + return false; + +@@ -2242,8 +2242,8 @@ qca8k_lag_setup_hash(struct dsa_switch *ds, + { + struct qca8k_priv *priv = ds->priv; + bool unique_lag = true; ++ u32 hash = 0; + int i, id; +- u32 hash; + + id = dsa_lag_id(ds->dst, lag); + +-- +cgit 1.2.3-1.el7 +