From aae0e68909bf2ef1b60d18c54105ab8b9c67c5a2 Mon Sep 17 00:00:00 2001 From: Codrin Ciubotariu Date: Tue, 15 Dec 2015 15:21:06 +0200 Subject: drivers: net: vsc9953: Add LAG support You can now configure LAG on VSC9953's ports using the command: ethsw [port ] aggr {[help] | show | } A port must belong to a single LAG. By default, a port belongs to a LAG equal to the port's number. For each frame, a hash will be calculated based on Source/Destination MAC addresses, Source/Destination IP(v4/v6) addresses, Source/Destination ports. This hash will be used to select a single egress port from LAG. This also assures that frames from the same flow will always have the same egress port. Signed-off-by: Codrin Ciubotariu Acked-by: Joe Hershberger --- common/cmd_ethsw.c | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) (limited to 'common') diff --git a/common/cmd_ethsw.c b/common/cmd_ethsw.c index a5ed5557f5e..491cb8eac38 100644 --- a/common/cmd_ethsw.c +++ b/common/cmd_ethsw.c @@ -114,6 +114,17 @@ static int ethsw_ingr_fltr_help_key_func(struct ethsw_command_def *parsed_cmd) return CMD_RET_SUCCESS; } +#define ETHSW_PORT_AGGR_HELP "ethsw [port ] aggr" \ +" { [help] | show | } " \ +"- get/set LAG group for a port" + +static int ethsw_port_aggr_help_key_func(struct ethsw_command_def *parsed_cmd) +{ + printf(ETHSW_PORT_AGGR_HELP"\n"); + + return CMD_RET_SUCCESS; +} + static struct keywords_to_function { enum ethsw_keyword_id cmd_keyword[ETHSW_MAX_CMD_PARAMS]; int cmd_func_offset; @@ -532,6 +543,39 @@ static struct keywords_to_function { .cmd_func_offset = offsetof(struct ethsw_command_func, port_ingr_filt_set), .keyword_function = NULL, + }, { + .cmd_keyword = { + ethsw_id_aggr, + ethsw_id_key_end, + }, + .cmd_func_offset = -1, + .keyword_function = ðsw_port_aggr_help_key_func, + }, { + .cmd_keyword = { + ethsw_id_aggr, + ethsw_id_help, + ethsw_id_key_end, + }, + .cmd_func_offset = -1, + .keyword_function = ðsw_port_aggr_help_key_func, + }, { + .cmd_keyword = { + ethsw_id_aggr, + ethsw_id_show, + ethsw_id_key_end, + }, + .cmd_func_offset = offsetof(struct ethsw_command_func, + port_aggr_show), + .keyword_function = NULL, + }, { + .cmd_keyword = { + ethsw_id_aggr, + ethsw_id_aggr_no, + ethsw_id_key_end, + }, + .cmd_func_offset = offsetof(struct ethsw_command_func, + port_aggr_set), + .keyword_function = NULL, }, }; @@ -576,6 +620,9 @@ static int keyword_match_pvid(enum ethsw_keyword_id key_id, int argc, static int keyword_match_mac_addr(enum ethsw_keyword_id key_id, int argc, char *const argv[], int *argc_nr, struct ethsw_command_def *parsed_cmd); +static int keyword_match_aggr(enum ethsw_keyword_id key_id, int argc, + char *const argv[], int *argc_nr, + struct ethsw_command_def *parsed_cmd); /* * Define properties for each keyword; @@ -661,6 +708,9 @@ struct keyword_def { }, { .keyword_name = "filtering", .match = &keyword_match_gen, + }, { + .keyword_name = "aggr", + .match = &keyword_match_aggr, }, }; @@ -826,6 +876,28 @@ static int keyword_match_mac_addr(enum ethsw_keyword_id key_id, int argc, return 1; } +/* Function used to match the command's aggregation number */ +static int keyword_match_aggr(enum ethsw_keyword_id key_id, int argc, + char *const argv[], int *argc_nr, + struct ethsw_command_def *parsed_cmd) +{ + unsigned long val; + + if (!keyword_match_gen(key_id, argc, argv, argc_nr, parsed_cmd)) + return 0; + + if (*argc_nr + 1 >= argc) + return 1; + + if (strict_strtoul(argv[*argc_nr + 1], 10, &val) != -EINVAL) { + parsed_cmd->aggr_grp = val; + (*argc_nr)++; + parsed_cmd->cmd_to_keywords[*argc_nr] = ethsw_id_aggr_no; + } + + return 1; +} + /* Finds optional keywords and modifies *argc_va to skip them */ static void cmd_keywords_opt_check(const struct ethsw_command_def *parsed_cmd, int *argc_val) @@ -984,6 +1056,7 @@ static void command_def_init(struct ethsw_command_def *parsed_cmd) parsed_cmd->port = ETHSW_CMD_PORT_ALL; parsed_cmd->vid = ETHSW_CMD_VLAN_ALL; + parsed_cmd->aggr_grp = ETHSW_CMD_AGGR_GRP_NONE; parsed_cmd->cmd_function = NULL; /* We initialize the MAC address with the Broadcast address */ @@ -1024,4 +1097,5 @@ U_BOOT_CMD(ethsw, ETHSW_MAX_CMD_PARAMS, 0, do_ethsw, ETHSW_EGR_VLAN_TAG_HELP"\n" ETHSW_VLAN_FDB_HELP"\n" ETHSW_PORT_INGR_FLTR_HELP"\n" + ETHSW_PORT_AGGR_HELP"\n" ); -- cgit v1.3.1