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[213.179.129.39]) by smtp.gmail.com with ESMTPSA id t22-20020a50d716000000b00425b6799dc4sm4389359edi.71.2022.04.25.02.30.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Apr 2022 02:30:38 -0700 (PDT) From: Jiri Pirko To: netdev@vger.kernel.org Cc: sthemmin@microsoft.com, dsahern@gmail.com, snelson@pensando.io Subject: [patch iproute2-next v2] devlink: introduce -h[ex] cmdline option to allow dumping numbers in hex format Date: Mon, 25 Apr 2022 11:30:36 +0200 Message-Id: <20220425093036.1518107-1-jiri@resnulli.us> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Jiri Pirko For health reporter dumps it is quite convenient to have the numbers in hexadecimal format. Introduce a command line option to allow user to achieve that output. Signed-off-by: Jiri Pirko --- v1->v2: - changed the hex output option to "-x" - added "0x" prefix to hex numbers --- devlink/devlink.c | 19 +++++++++++++------ man/man8/devlink.8 | 4 ++++ 2 files changed, 17 insertions(+), 6 deletions(-) diff --git a/devlink/devlink.c b/devlink/devlink.c index da9f97788bcf..7ace968ca081 100644 --- a/devlink/devlink.c +++ b/devlink/devlink.c @@ -367,6 +367,7 @@ struct dl { bool pretty_output; bool verbose; bool stats; + bool hex; struct { bool present; char *bus_name; @@ -8044,6 +8045,8 @@ static int cmd_health_dump_clear(struct dl *dl) static int fmsg_value_show(struct dl *dl, int type, struct nlattr *nl_data) { + const char *num_fmt = dl->hex ? "%#x" : "%u"; + const char *num64_fmt = dl->hex ? "%#"PRIx64 : "%"PRIu64; uint8_t *data; uint32_t len; @@ -8053,16 +8056,16 @@ static int fmsg_value_show(struct dl *dl, int type, struct nlattr *nl_data) print_bool(PRINT_ANY, NULL, "%s", mnl_attr_get_u8(nl_data)); break; case MNL_TYPE_U8: - print_uint(PRINT_ANY, NULL, "%u", mnl_attr_get_u8(nl_data)); + print_uint(PRINT_ANY, NULL, num_fmt, mnl_attr_get_u8(nl_data)); break; case MNL_TYPE_U16: - print_uint(PRINT_ANY, NULL, "%u", mnl_attr_get_u16(nl_data)); + print_uint(PRINT_ANY, NULL, num_fmt, mnl_attr_get_u16(nl_data)); break; case MNL_TYPE_U32: - print_uint(PRINT_ANY, NULL, "%u", mnl_attr_get_u32(nl_data)); + print_uint(PRINT_ANY, NULL, num_fmt, mnl_attr_get_u32(nl_data)); break; case MNL_TYPE_U64: - print_u64(PRINT_ANY, NULL, "%"PRIu64, mnl_attr_get_u64(nl_data)); + print_u64(PRINT_ANY, NULL, num64_fmt, mnl_attr_get_u64(nl_data)); break; case MNL_TYPE_NUL_STRING: print_string(PRINT_ANY, NULL, "%s", mnl_attr_get_str(nl_data)); @@ -8928,7 +8931,7 @@ static void help(void) pr_err("Usage: devlink [ OPTIONS ] OBJECT { COMMAND | help }\n" " devlink [ -f[orce] ] -b[atch] filename -N[etns] netnsname\n" "where OBJECT := { dev | port | sb | monitor | dpipe | resource | region | health | trap }\n" - " OPTIONS := { -V[ersion] | -n[o-nice-names] | -j[son] | -p[retty] | -v[erbose] -s[tatistics] }\n"); + " OPTIONS := { -V[ersion] | -n[o-nice-names] | -j[son] | -p[retty] | -v[erbose] -s[tatistics] -[he]x }\n"); } static int dl_cmd(struct dl *dl, int argc, char **argv) @@ -9042,6 +9045,7 @@ int main(int argc, char **argv) { "statistics", no_argument, NULL, 's' }, { "Netns", required_argument, NULL, 'N' }, { "iec", no_argument, NULL, 'i' }, + { "hex", no_argument, NULL, 'x' }, { NULL, 0, NULL, 0 } }; const char *batch_file = NULL; @@ -9057,7 +9061,7 @@ int main(int argc, char **argv) return EXIT_FAILURE; } - while ((opt = getopt_long(argc, argv, "Vfb:njpvsN:i", + while ((opt = getopt_long(argc, argv, "Vfb:njpvsN:ix", long_options, NULL)) >= 0) { switch (opt) { @@ -9095,6 +9099,9 @@ int main(int argc, char **argv) case 'i': use_iec = true; break; + case 'x': + dl->hex = true; + break; default: pr_err("Unknown option.\n"); help(); diff --git a/man/man8/devlink.8 b/man/man8/devlink.8 index 840cf44cf97b..de53061bc880 100644 --- a/man/man8/devlink.8 +++ b/man/man8/devlink.8 @@ -63,6 +63,10 @@ Switches to the specified network namespace. .BR "\-i", " --iec" Print human readable rates in IEC units (e.g. 1Ki = 1024). +.TP +.BR "\-x", " --hex" +Print dump numbers in hexadecimal format. + .SS .I OBJECT -- 2.35.1