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path: root/drivers/net/ethernet/mellanox/mlx4/port.c
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/port.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/port.c170
1 files changed, 131 insertions, 39 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c
index b656dd5772e5..4e36e287d605 100644
--- a/drivers/net/ethernet/mellanox/mlx4/port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/port.c
@@ -50,7 +50,11 @@
#define MLX4_STATS_ERROR_COUNTERS_MASK 0x1ffc30ULL
#define MLX4_STATS_PORT_COUNTERS_MASK 0x1fe00000ULL
-#define MLX4_FLAG_V_IGNORE_FCS_MASK 0x2
+#define MLX4_FLAG2_V_IGNORE_FCS_MASK BIT(1)
+#define MLX4_FLAG2_V_USER_MTU_MASK BIT(5)
+#define MLX4_FLAG_V_MTU_MASK BIT(0)
+#define MLX4_FLAG_V_PPRX_MASK BIT(1)
+#define MLX4_FLAG_V_PPTX_MASK BIT(2)
#define MLX4_IGNORE_FCS_MASK 0x1
#define MLX4_TC_MAX_NUMBER 8
@@ -1239,13 +1243,96 @@ void mlx4_reset_roce_gids(struct mlx4_dev *dev, int slave)
return;
}
+static void
+mlx4_en_set_port_mtu(struct mlx4_dev *dev, int slave, int port,
+ struct mlx4_set_port_general_context *gen_context)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_mfunc_master_ctx *master = &priv->mfunc.master;
+ struct mlx4_slave_state *slave_st = &master->slave_state[slave];
+ u16 mtu, prev_mtu;
+
+ /* Mtu is configured as the max USER_MTU among all
+ * the functions on the port.
+ */
+ mtu = be16_to_cpu(gen_context->mtu);
+ mtu = min_t(int, mtu, dev->caps.eth_mtu_cap[port] +
+ ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN);
+ prev_mtu = slave_st->mtu[port];
+ slave_st->mtu[port] = mtu;
+ if (mtu > master->max_mtu[port])
+ master->max_mtu[port] = mtu;
+ if (mtu < prev_mtu && prev_mtu == master->max_mtu[port]) {
+ int i;
+
+ slave_st->mtu[port] = mtu;
+ master->max_mtu[port] = mtu;
+ for (i = 0; i < dev->num_slaves; i++)
+ master->max_mtu[port] =
+ max_t(u16, master->max_mtu[port],
+ master->slave_state[i].mtu[port]);
+ }
+ gen_context->mtu = cpu_to_be16(master->max_mtu[port]);
+}
+
+static void
+mlx4_en_set_port_user_mtu(struct mlx4_dev *dev, int slave, int port,
+ struct mlx4_set_port_general_context *gen_context)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_mfunc_master_ctx *master = &priv->mfunc.master;
+ struct mlx4_slave_state *slave_st = &master->slave_state[slave];
+ u16 user_mtu, prev_user_mtu;
+
+ /* User Mtu is configured as the max USER_MTU among all
+ * the functions on the port.
+ */
+ user_mtu = be16_to_cpu(gen_context->user_mtu);
+ user_mtu = min_t(int, user_mtu, dev->caps.eth_mtu_cap[port]);
+ prev_user_mtu = slave_st->user_mtu[port];
+ slave_st->user_mtu[port] = user_mtu;
+ if (user_mtu > master->max_user_mtu[port])
+ master->max_user_mtu[port] = user_mtu;
+ if (user_mtu < prev_user_mtu &&
+ prev_user_mtu == master->max_user_mtu[port]) {
+ int i;
+
+ slave_st->user_mtu[port] = user_mtu;
+ master->max_user_mtu[port] = user_mtu;
+ for (i = 0; i < dev->num_slaves; i++)
+ master->max_user_mtu[port] =
+ max_t(u16, master->max_user_mtu[port],
+ master->slave_state[i].user_mtu[port]);
+ }
+ gen_context->user_mtu = cpu_to_be16(master->max_user_mtu[port]);
+}
+
+static void
+mlx4_en_set_port_global_pause(struct mlx4_dev *dev, int slave,
+ struct mlx4_set_port_general_context *gen_context)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_mfunc_master_ctx *master = &priv->mfunc.master;
+
+ /* Slave cannot change Global Pause configuration */
+ if (slave != mlx4_master_func_num(dev) &&
+ (gen_context->pptx != master->pptx ||
+ gen_context->pprx != master->pprx)) {
+ gen_context->pptx = master->pptx;
+ gen_context->pprx = master->pprx;
+ mlx4_warn(dev, "denying Global Pause change for slave:%d\n",
+ slave);
+ } else {
+ master->pptx = gen_context->pptx;
+ master->pprx = gen_context->pprx;
+ }
+}
+
static int mlx4_common_set_port(struct mlx4_dev *dev, int slave, u32 in_mod,
u8 op_mod, struct mlx4_cmd_mailbox *inbox)
{
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_port_info *port_info;
- struct mlx4_mfunc_master_ctx *master = &priv->mfunc.master;
- struct mlx4_slave_state *slave_st = &master->slave_state[slave];
struct mlx4_set_port_rqp_calc_context *qpn_context;
struct mlx4_set_port_general_context *gen_context;
struct mlx4_roce_gid_entry *gid_entry_tbl, *gid_entry_mbox, *gid_entry_mb1;
@@ -1256,7 +1343,6 @@ static int mlx4_common_set_port(struct mlx4_dev *dev, int slave, u32 in_mod,
int base;
u32 in_modifier;
u32 promisc;
- u16 mtu, prev_mtu;
int err;
int i, j;
int offset;
@@ -1269,7 +1355,9 @@ static int mlx4_common_set_port(struct mlx4_dev *dev, int slave, u32 in_mod,
is_eth = op_mod;
port_info = &priv->port[port];
- /* Slaves cannot perform SET_PORT operations except changing MTU */
+ /* Slaves cannot perform SET_PORT operations,
+ * except for changing MTU and USER_MTU.
+ */
if (is_eth) {
if (slave != dev->caps.function &&
in_modifier != MLX4_SET_PORT_GENERAL &&
@@ -1297,40 +1385,20 @@ static int mlx4_common_set_port(struct mlx4_dev *dev, int slave, u32 in_mod,
break;
case MLX4_SET_PORT_GENERAL:
gen_context = inbox->buf;
- /* Mtu is configured as the max MTU among all the
- * the functions on the port. */
- mtu = be16_to_cpu(gen_context->mtu);
- mtu = min_t(int, mtu, dev->caps.eth_mtu_cap[port] +
- ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN);
- prev_mtu = slave_st->mtu[port];
- slave_st->mtu[port] = mtu;
- if (mtu > master->max_mtu[port])
- master->max_mtu[port] = mtu;
- if (mtu < prev_mtu && prev_mtu ==
- master->max_mtu[port]) {
- slave_st->mtu[port] = mtu;
- master->max_mtu[port] = mtu;
- for (i = 0; i < dev->num_slaves; i++) {
- master->max_mtu[port] =
- max(master->max_mtu[port],
- master->slave_state[i].mtu[port]);
- }
- }
- gen_context->mtu = cpu_to_be16(master->max_mtu[port]);
- /* Slave cannot change Global Pause configuration */
- if (slave != mlx4_master_func_num(dev) &&
- ((gen_context->pptx != master->pptx) ||
- (gen_context->pprx != master->pprx))) {
- gen_context->pptx = master->pptx;
- gen_context->pprx = master->pprx;
- mlx4_warn(dev,
- "denying Global Pause change for slave:%d\n",
- slave);
- } else {
- master->pptx = gen_context->pptx;
- master->pprx = gen_context->pprx;
- }
+ if (gen_context->flags & MLX4_FLAG_V_MTU_MASK)
+ mlx4_en_set_port_mtu(dev, slave, port,
+ gen_context);
+
+ if (gen_context->flags2 & MLX4_FLAG2_V_USER_MTU_MASK)
+ mlx4_en_set_port_user_mtu(dev, slave, port,
+ gen_context);
+
+ if (gen_context->flags &
+ (MLX4_FLAG_V_PPRX_MASK | MLX4_FLAG_V_PPTX_MASK))
+ mlx4_en_set_port_global_pause(dev, slave,
+ gen_context);
+
break;
case MLX4_SET_PORT_GID_TABLE:
/* change to MULTIPLE entries: number of guest's gids
@@ -1608,6 +1676,30 @@ int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
}
EXPORT_SYMBOL(mlx4_SET_PORT_qpn_calc);
+int mlx4_SET_PORT_user_mtu(struct mlx4_dev *dev, u8 port, u16 user_mtu)
+{
+ struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_set_port_general_context *context;
+ u32 in_mod;
+ int err;
+
+ mailbox = mlx4_alloc_cmd_mailbox(dev);
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
+ context = mailbox->buf;
+ context->flags2 |= MLX4_FLAG2_V_USER_MTU_MASK;
+ context->user_mtu = cpu_to_be16(user_mtu);
+
+ in_mod = MLX4_SET_PORT_GENERAL << 8 | port;
+ err = mlx4_cmd(dev, mailbox->dma, in_mod, MLX4_SET_PORT_ETH_OPCODE,
+ MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
+ MLX4_CMD_WRAPPED);
+
+ mlx4_free_cmd_mailbox(dev, mailbox);
+ return err;
+}
+EXPORT_SYMBOL(mlx4_SET_PORT_user_mtu);
+
int mlx4_SET_PORT_fcs_check(struct mlx4_dev *dev, u8 port, u8 ignore_fcs_value)
{
struct mlx4_cmd_mailbox *mailbox;
@@ -1619,7 +1711,7 @@ int mlx4_SET_PORT_fcs_check(struct mlx4_dev *dev, u8 port, u8 ignore_fcs_value)
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
context = mailbox->buf;
- context->v_ignore_fcs |= MLX4_FLAG_V_IGNORE_FCS_MASK;
+ context->flags2 |= MLX4_FLAG2_V_IGNORE_FCS_MASK;
if (ignore_fcs_value)
context->ignore_fcs |= MLX4_IGNORE_FCS_MASK;
else
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