diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2023-06-09 14:43:46 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-06-12 11:01:03 +0100 |
| commit | f561ff232a6b502bda020ac47200e88f0bc5f98a (patch) | |
| tree | 508cb27d956fa15b0a669116f943a9287323884f /tools | |
| parent | 2d7be507d65e90099c76631bf0448d0b30f7f203 (diff) | |
tools: ynl: add sample for ethtool
Configuring / reading ring sizes and counts is a fairly common
operation for ethtool netlink. Present a sample doing that with
YNL:
$ ./ethtool
Channels:
enp1s0: combined 1
eni1np1: combined 1
eni2np1: combined 1
Rings:
enp1s0: rx 256 tx 256
eni1np1: rx 0 tx 0
eni2np1: rx 0 tx 0
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/net/ynl/samples/.gitignore | 1 | ||||
| -rw-r--r-- | tools/net/ynl/samples/ethtool.c | 65 |
2 files changed, 66 insertions, 0 deletions
diff --git a/tools/net/ynl/samples/.gitignore b/tools/net/ynl/samples/.gitignore index a24678b67557..2aae60c4829f 100644 --- a/tools/net/ynl/samples/.gitignore +++ b/tools/net/ynl/samples/.gitignore @@ -1,2 +1,3 @@ +ethtool devlink netdev diff --git a/tools/net/ynl/samples/ethtool.c b/tools/net/ynl/samples/ethtool.c new file mode 100644 index 000000000000..a7ebbd1b98db --- /dev/null +++ b/tools/net/ynl/samples/ethtool.c @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <stdio.h> +#include <string.h> + +#include <ynl.h> + +#include <net/if.h> + +#include "ethtool-user.h" + +int main(int argc, char **argv) +{ + struct ethtool_channels_get_req_dump creq = {}; + struct ethtool_rings_get_req_dump rreq = {}; + struct ethtool_channels_get_list *channels; + struct ethtool_rings_get_list *rings; + struct ynl_sock *ys; + + ys = ynl_sock_create(&ynl_ethtool_family, NULL); + if (!ys) + return 1; + + creq._present.header = 1; /* ethtool needs an empty nest, sigh */ + channels = ethtool_channels_get_dump(ys, &creq); + if (!channels) + goto err_close; + + printf("Channels:\n"); + ynl_dump_foreach(channels, dev) { + printf(" %8s: ", dev->header.dev_name); + if (dev->_present.rx_count) + printf("rx %d ", dev->rx_count); + if (dev->_present.tx_count) + printf("tx %d ", dev->tx_count); + if (dev->_present.combined_count) + printf("combined %d ", dev->combined_count); + printf("\n"); + } + ethtool_channels_get_list_free(channels); + + rreq._present.header = 1; /* ethtool needs an empty nest.. */ + rings = ethtool_rings_get_dump(ys, &rreq); + if (!rings) + goto err_close; + + printf("Rings:\n"); + ynl_dump_foreach(rings, dev) { + printf(" %8s: ", dev->header.dev_name); + if (dev->_present.rx) + printf("rx %d ", dev->rx); + if (dev->_present.tx) + printf("tx %d ", dev->tx); + printf("\n"); + } + ethtool_rings_get_list_free(rings); + + ynl_sock_destroy(ys); + + return 0; + +err_close: + fprintf(stderr, "YNL (%d): %s\n", ys->err.code, ys->err.msg); + ynl_sock_destroy(ys); + return 2; +} |