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drivers/net/vsc9953: Add commands to enable/disable HW learning

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The command:
ethsw [port <port_no>] learning { [help] | show | auto | disable }

can be used to enable/disable HW learning on a port.
This patch also adds this command to the generic ethsw parser from
cmd_ethsw.

Signed-off-by: Johnson Leung <johnson.leung@freescale.com>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@freescale.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: York Sun <yorksun@freescale.com>
This commit is contained in:
Codrin Ciubotariu
2015-07-24 16:55:30 +03:00
committed by York Sun
parent 86719f0cd5
commit 68c929da6b
4 changed files with 211 additions and 0 deletions
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141
drivers/net/vsc9953.c
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@@ -717,6 +717,72 @@ static void vsc9953_port_statistics_clear(int port_no)
VSC9953_STAT_CLEAR_DR);
}
enum port_learn_mode {
PORT_LEARN_NONE,
PORT_LEARN_AUTO
};
/* Set learning configuration for a VSC9953 port */
static void vsc9953_port_learn_mode_set(int port_no, enum port_learn_mode mode)
{
struct vsc9953_analyzer *l2ana_reg;
/* Administrative down */
if (!vsc9953_l2sw.port[port_no].enabled) {
printf("Port %d is administrative down\n", port_no);
return;
}
l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET +
VSC9953_ANA_OFFSET);
switch (mode) {
case PORT_LEARN_NONE:
clrbits_le32(&l2ana_reg->port[port_no].port_cfg,
VSC9953_PORT_CFG_LEARN_DROP |
VSC9953_PORT_CFG_LEARN_CPU |
VSC9953_PORT_CFG_LEARN_AUTO |
VSC9953_PORT_CFG_LEARN_ENA);
break;
case PORT_LEARN_AUTO:
clrsetbits_le32(&l2ana_reg->port[port_no].port_cfg,
VSC9953_PORT_CFG_LEARN_DROP |
VSC9953_PORT_CFG_LEARN_CPU,
VSC9953_PORT_CFG_LEARN_ENA |
VSC9953_PORT_CFG_LEARN_AUTO);
break;
default:
printf("Unknown learn mode for port %d\n", port_no);
}
}
/* Get learning configuration for a VSC9953 port */
static int vsc9953_port_learn_mode_get(int port_no, enum port_learn_mode *mode)
{
u32 val;
struct vsc9953_analyzer *l2ana_reg;
/* Administrative down */
if (!vsc9953_l2sw.port[port_no].enabled) {
printf("Port %d is administrative down\n", port_no);
return -1;
}
l2ana_reg = (struct vsc9953_analyzer *)(VSC9953_OFFSET +
VSC9953_ANA_OFFSET);
/* For now we only support HW learning (auto) and no learning */
val = in_le32(&l2ana_reg->port[port_no].port_cfg);
if ((val & (VSC9953_PORT_CFG_LEARN_ENA |
VSC9953_PORT_CFG_LEARN_AUTO)) ==
(VSC9953_PORT_CFG_LEARN_ENA | VSC9953_PORT_CFG_LEARN_AUTO))
*mode = PORT_LEARN_AUTO;
else
*mode = PORT_LEARN_NONE;
return 0;
}
static int vsc9953_port_status_key_func(struct ethsw_command_def *parsed_cmd)
{
int i;
@@ -810,6 +876,79 @@ static int vsc9953_port_stats_clear_key_func(struct ethsw_command_def
return CMD_RET_SUCCESS;
}
static int vsc9953_learn_show_key_func(struct ethsw_command_def *parsed_cmd)
{
int i;
enum port_learn_mode mode;
if (parsed_cmd->port != ETHSW_CMD_PORT_ALL) {
if (!VSC9953_PORT_CHECK(parsed_cmd->port)) {
printf("Invalid port number: %d\n", parsed_cmd->port);
return CMD_RET_FAILURE;
}
if (vsc9953_port_learn_mode_get(parsed_cmd->port, &mode))
return CMD_RET_FAILURE;
printf("%7s %11s\n", "Port", "Learn mode");
switch (mode) {
case PORT_LEARN_NONE:
printf("%7d %11s\n", parsed_cmd->port, "disable");
break;
case PORT_LEARN_AUTO:
printf("%7d %11s\n", parsed_cmd->port, "auto");
break;
default:
printf("%7d %11s\n", parsed_cmd->port, "-");
}
} else {
printf("%7s %11s\n", "Port", "Learn mode");
for (i = 0; i < VSC9953_MAX_PORTS; i++) {
if (vsc9953_port_learn_mode_get(i, &mode))
continue;
switch (mode) {
case PORT_LEARN_NONE:
printf("%7d %11s\n", i, "disable");
break;
case PORT_LEARN_AUTO:
printf("%7d %11s\n", i, "auto");
break;
default:
printf("%7d %11s\n", i, "-");
}
}
}
return CMD_RET_SUCCESS;
}
static int vsc9953_learn_set_key_func(struct ethsw_command_def *parsed_cmd)
{
int i;
enum port_learn_mode mode;
/* Last keyword should tell us the learn mode */
if (parsed_cmd->cmd_to_keywords[parsed_cmd->cmd_keywords_nr - 1] ==
ethsw_id_auto)
mode = PORT_LEARN_AUTO;
else if (parsed_cmd->cmd_to_keywords[parsed_cmd->cmd_keywords_nr - 1] ==
ethsw_id_disable)
mode = PORT_LEARN_NONE;
else
return CMD_RET_USAGE;
if (parsed_cmd->port != ETHSW_CMD_PORT_ALL) {
if (!VSC9953_PORT_CHECK(parsed_cmd->port)) {
printf("Invalid port number: %d\n", parsed_cmd->port);
return CMD_RET_FAILURE;
}
vsc9953_port_learn_mode_set(parsed_cmd->port, mode);
} else {
for (i = 0; i < VSC9953_MAX_PORTS; i++)
vsc9953_port_learn_mode_set(i, mode);
}
return CMD_RET_SUCCESS;
}
static struct ethsw_command_func vsc9953_cmd_func = {
.ethsw_name = "L2 Switch VSC9953",
.port_enable = &vsc9953_port_status_key_func,
@@ -817,6 +956,8 @@ static struct ethsw_command_func vsc9953_cmd_func = {
.port_show = &vsc9953_port_config_key_func,
.port_stats = &vsc9953_port_stats_key_func,
.port_stats_clear = &vsc9953_port_stats_clear_key_func,
.port_learn = &vsc9953_learn_set_key_func,
.port_learn_show = &vsc9953_learn_show_key_func,
};
#endif /* CONFIG_CMD_ETHSW */