[net-next iproute2 PATCH v3 1/2] iplink: hsr: add support for creating PRP device similar to HSR
From: Murali Karicheri <hidden>
Date: 2020-07-17 15:22:11
This patch enhances the iplink command to add a proto parameters to create PRP device/interface similar to HSR. Both protocols are quite similar and requires a pair of Ethernet interfaces. So re-use the existing HSR iplink command to create PRP device/interface as well. Use proto parameter to differentiate the two protocols. Signed-off-by: Murali Karicheri <redacted> --- dependent on the series "[net-next PATCH v3 0/7] Add PRP driver" include/uapi/linux/if_link.h | 12 +++++++++++- ip/iplink_hsr.c | 19 +++++++++++++++++-- 2 files changed, 28 insertions(+), 3 deletions(-)
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index a8901a39a345..fa2e3f642deb 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h@@ -904,7 +904,14 @@ enum { #define IFLA_IPOIB_MAX (__IFLA_IPOIB_MAX - 1) -/* HSR section */ +/* HSR/PRP section, both uses same interface */ + +/* Different redundancy protocols for hsr device */ +enum { + HSR_PROTOCOL_HSR, + HSR_PROTOCOL_PRP, + HSR_PROTOCOL_MAX, +}; enum { IFLA_HSR_UNSPEC,
@@ -914,6 +921,9 @@ enum { IFLA_HSR_SUPERVISION_ADDR, /* Supervision frame multicast addr */ IFLA_HSR_SEQ_NR, IFLA_HSR_VERSION, /* HSR version */ + IFLA_HSR_PROTOCOL, /* Indicate different protocol than + * HSR. For example PRP. + */ __IFLA_HSR_MAX, };
diff --git a/ip/iplink_hsr.c b/ip/iplink_hsr.c
index 7d9167d4e6a3..6ea138a23cbc 100644
--- a/ip/iplink_hsr.c
+++ b/ip/iplink_hsr.c@@ -25,7 +25,7 @@ static void print_usage(FILE *f) { fprintf(f, "Usage:\tip link add name NAME type hsr slave1 SLAVE1-IF slave2 SLAVE2-IF\n" - "\t[ supervision ADDR-BYTE ] [version VERSION]\n" + "\t[ supervision ADDR-BYTE ] [version VERSION] [proto PROTOCOL]\n" "\n" "NAME\n" " name of new hsr device (e.g. hsr0)\n"
@@ -35,7 +35,9 @@ static void print_usage(FILE *f) " 0-255; the last byte of the multicast address used for HSR supervision\n" " frames (default = 0)\n" "VERSION\n" - " 0,1; the protocol version to be used. (default = 0)\n"); + " 0,1; the protocol version to be used. (default = 0)\n" + "PROTOCOL\n" + " 0 - HSR, 1 - PRP. (default = 0 - HSR)\n"); } static void usage(void)
@@ -49,6 +51,7 @@ static int hsr_parse_opt(struct link_util *lu, int argc, char **argv, int ifindex; unsigned char multicast_spec; unsigned char protocol_version; + unsigned char protocol = HSR_PROTOCOL_HSR; while (argc > 0) { if (matches(*argv, "supervision") == 0) {
@@ -64,6 +67,13 @@ static int hsr_parse_opt(struct link_util *lu, int argc, char **argv, invarg("version is invalid", *argv); addattr_l(n, 1024, IFLA_HSR_VERSION, &protocol_version, 1); + } else if (matches(*argv, "proto") == 0) { + NEXT_ARG(); + if (!(get_u8(&protocol, *argv, 0) == HSR_PROTOCOL_HSR || + get_u8(&protocol, *argv, 0) == HSR_PROTOCOL_PRP)) + invarg("protocol is invalid", *argv); + addattr_l(n, 1024, IFLA_HSR_PROTOCOL, + &protocol, 1); } else if (matches(*argv, "slave1") == 0) { NEXT_ARG(); ifindex = ll_name_to_index(*argv);
@@ -140,6 +150,11 @@ static void hsr_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) RTA_PAYLOAD(tb[IFLA_HSR_SUPERVISION_ADDR]), ARPHRD_VOID, b1, sizeof(b1))); + if (tb[IFLA_HSR_PROTOCOL]) + print_int(PRINT_ANY, + "proto", + "proto %d ", + rta_getattr_u8(tb[IFLA_HSR_PROTOCOL])); } static void hsr_print_help(struct link_util *lu, int argc, char **argv,
--
2.17.1