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drivers: net: cpsw: drop host_port field from struct cpsw_priv
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The host_port field is constantly assigned to 0 and this value has
never changed (since time when cpsw driver was introduced. More over,
if this field will be assigned to non 0 value it will break current
driver functionality.

Hence, there are no reasons to continue maintaining this host_port
field and it can be removed, and the HOST_PORT_NUM and ALE_PORT_HOST
defines can be used instead.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Grygorii Strashko authored and David S. Miller committed Apr 11, 2016
1 parent 61f1cef commit 71a2cbb
Showing 1 changed file with 12 additions and 18 deletions.
30 changes: 12 additions & 18 deletions drivers/net/ethernet/ti/cpsw.c
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Original file line number Diff line number Diff line change
Expand Up @@ -381,7 +381,6 @@ struct cpsw_priv {
u32 coal_intvl;
u32 bus_freq_mhz;
int rx_packet_max;
int host_port;
struct clk *clk;
u8 mac_addr[ETH_ALEN];
struct cpsw_slave *slaves;
Expand Down Expand Up @@ -531,7 +530,7 @@ static const struct cpsw_stats cpsw_gstrings_stats[] = {
int slave_port = cpsw_get_slave_port(priv, \
slave->slave_num); \
cpsw_ale_add_mcast(priv->ale, addr, \
1 << slave_port | 1 << priv->host_port, \
1 << slave_port | ALE_PORT_HOST, \
ALE_VLAN, slave->port_vlan, 0); \
} else { \
cpsw_ale_add_mcast(priv->ale, addr, \
Expand All @@ -542,10 +541,7 @@ static const struct cpsw_stats cpsw_gstrings_stats[] = {

static inline int cpsw_get_slave_port(struct cpsw_priv *priv, u32 slave_num)
{
if (priv->host_port == 0)
return slave_num + 1;
else
return slave_num;
return slave_num + 1;
}

static void cpsw_set_promiscious(struct net_device *ndev, bool enable)
Expand Down Expand Up @@ -1090,7 +1086,7 @@ static inline void cpsw_add_dual_emac_def_ale_entries(
struct cpsw_priv *priv, struct cpsw_slave *slave,
u32 slave_port)
{
u32 port_mask = 1 << slave_port | 1 << priv->host_port;
u32 port_mask = 1 << slave_port | ALE_PORT_HOST;

if (priv->version == CPSW_VERSION_1)
slave_write(slave, slave->port_vlan, CPSW1_PORT_VLAN);
Expand All @@ -1101,7 +1097,7 @@ static inline void cpsw_add_dual_emac_def_ale_entries(
cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
port_mask, ALE_VLAN, slave->port_vlan, 0);
cpsw_ale_add_ucast(priv->ale, priv->mac_addr,
priv->host_port, ALE_VLAN | ALE_SECURE, slave->port_vlan);
HOST_PORT_NUM, ALE_VLAN | ALE_SECURE, slave->port_vlan);
}

static void soft_reset_slave(struct cpsw_slave *slave)
Expand Down Expand Up @@ -1202,7 +1198,7 @@ static void cpsw_init_host_port(struct cpsw_priv *priv)
cpsw_ale_start(priv->ale);

/* switch to vlan unaware mode */
cpsw_ale_control_set(priv->ale, priv->host_port, ALE_VLAN_AWARE,
cpsw_ale_control_set(priv->ale, HOST_PORT_NUM, ALE_VLAN_AWARE,
CPSW_ALE_VLAN_AWARE);
control_reg = readl(&priv->regs->control);
control_reg |= CPSW_VLAN_AWARE;
Expand All @@ -1216,14 +1212,14 @@ static void cpsw_init_host_port(struct cpsw_priv *priv)
&priv->host_port_regs->cpdma_tx_pri_map);
__raw_writel(0, &priv->host_port_regs->cpdma_rx_chan_map);

cpsw_ale_control_set(priv->ale, priv->host_port,
cpsw_ale_control_set(priv->ale, HOST_PORT_NUM,
ALE_PORT_STATE, ALE_PORT_STATE_FORWARD);

if (!priv->data.dual_emac) {
cpsw_ale_add_ucast(priv->ale, priv->mac_addr, priv->host_port,
cpsw_ale_add_ucast(priv->ale, priv->mac_addr, HOST_PORT_NUM,
0, 0);
cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
1 << priv->host_port, 0, 0, ALE_MCAST_FWD_2);
ALE_PORT_HOST, 0, 0, ALE_MCAST_FWD_2);
}
}

Expand Down Expand Up @@ -1616,9 +1612,9 @@ static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p)
flags = ALE_VLAN;
}

cpsw_ale_del_ucast(priv->ale, priv->mac_addr, priv->host_port,
cpsw_ale_del_ucast(priv->ale, priv->mac_addr, HOST_PORT_NUM,
flags, vid);
cpsw_ale_add_ucast(priv->ale, addr->sa_data, priv->host_port,
cpsw_ale_add_ucast(priv->ale, addr->sa_data, HOST_PORT_NUM,
flags, vid);

memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
Expand Down Expand Up @@ -1667,7 +1663,7 @@ static inline int cpsw_add_vlan_ale_entry(struct cpsw_priv *priv,
return ret;

ret = cpsw_ale_add_ucast(priv->ale, priv->mac_addr,
priv->host_port, ALE_VLAN, vid);
HOST_PORT_NUM, ALE_VLAN, vid);
if (ret != 0)
goto clean_vid;

Expand All @@ -1679,7 +1675,7 @@ static inline int cpsw_add_vlan_ale_entry(struct cpsw_priv *priv,

clean_vlan_ucast:
cpsw_ale_del_ucast(priv->ale, priv->mac_addr,
priv->host_port, ALE_VLAN, vid);
HOST_PORT_NUM, ALE_VLAN, vid);
clean_vid:
cpsw_ale_del_vlan(priv->ale, vid, 0);
return ret;
Expand Down Expand Up @@ -2148,7 +2144,6 @@ static int cpsw_probe_dual_emac(struct platform_device *pdev,
priv_sl2->bus_freq_mhz = priv->bus_freq_mhz;

priv_sl2->regs = priv->regs;
priv_sl2->host_port = priv->host_port;
priv_sl2->host_port_regs = priv->host_port_regs;
priv_sl2->wr_regs = priv->wr_regs;
priv_sl2->hw_stats = priv->hw_stats;
Expand Down Expand Up @@ -2317,7 +2312,6 @@ static int cpsw_probe(struct platform_device *pdev)
goto clean_runtime_disable_ret;
}
priv->regs = ss_regs;
priv->host_port = HOST_PORT_NUM;

/* Need to enable clocks with runtime PM api to access module
* registers
Expand Down

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