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From dff810b2e546eb74e8b9cebb7185ca5bcb5ecc9d Mon Sep 17 00:00:00 2001
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From: Thomas Richter <tmricht@linux.vnet.ibm.com>
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Date: Wed, 21 Jan 2015 03:35:59 +0000
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Subject: [PATCH] VDP: vdp22_cmds retrieve vsi paramenter data
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This patch adds support for the retrieval of the
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vsi parameter data to a command line client.
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Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
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Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
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---
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include/qbg_vdpnl.h | 1 +
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qbg/vdp22_cmds.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++
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2 files changed, 64 insertions(+)
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diff --git a/include/qbg_vdpnl.h b/include/qbg_vdpnl.h
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index 7b26bc7..510a20c 100644
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--- a/include/qbg_vdpnl.h
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+++ b/include/qbg_vdpnl.h
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@@ -78,4 +78,5 @@ int event_trigger(struct nlmsghdr *, pid_t);
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int vdp_str2vdpnl(char *, struct vdpnl_vsi *, char *);
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int vdp_vdpnl2str(struct vdpnl_vsi *, char *, size_t);
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int vdp22_sendevent(struct vdpnl_vsi *);
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+void vdp22_freemaclist(struct vdpnl_vsi *);
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#endif
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diff --git a/qbg/vdp22_cmds.c b/qbg/vdp22_cmds.c
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index a75c02d..f055441 100644
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--- a/qbg/vdp22_cmds.c
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+++ b/qbg/vdp22_cmds.c
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@@ -471,10 +471,73 @@ static int test_arg_vsi(struct cmd *cmd, UNUSED char *arg, char *argvalue,
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return set_arg_vsi2(cmd, argvalue, true);
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}
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+/*
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+ * Concatenate all VSI information into one string.
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+ * Return length of string in bytes.
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+ */
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+static int catvsis(struct vdpnl_vsi *vsi, char *out, size_t out_len)
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+{
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+ int rc, i;
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+ size_t used = 0;
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+ unsigned char wanted_req = vsi->request;
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+
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+ for (i = 1; vdp22_status(i, vsi, 1) > 0; ++i) {
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+ if (wanted_req != vsi->request) {
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+ vdp22_freemaclist(vsi);
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+ continue;
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+ }
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+ rc = vdp_vdpnl2str(vsi, out + used, out_len - used);
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+ vdp22_freemaclist(vsi);
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+ if (rc) {
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+ strcat(out, ";");
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+ used = strlen(out);
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+ } else
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+ return 0;
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+ }
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+ return used;
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+}
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+
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+/*
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+ * Return all VSIs on a particular interface into one string.
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+ */
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+static int get_arg_vsi(struct cmd *cmd, char *arg, UNUSED char *argvalue,
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+ char *obuf, int obuf_len)
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+{
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+ cmd_status good_cmd = vdp22_cmdok(cmd, cmd_gettlv);
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+ struct vdpnl_vsi vsi;
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+ char vsi_str[MAX_CLIF_MSGBUF];
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+ int rc;
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+
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+ if (good_cmd != cmd_success)
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+ return good_cmd;
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+ if (!port_find_by_ifindex(get_ifidx(cmd->ifname)))
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+ return cmd_device_not_found;
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+ good_cmd = ifok(cmd);
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+ if (good_cmd != cmd_success)
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+ return good_cmd;
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+
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+ memset(obuf, 0, obuf_len);
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+ memset(&vsi, 0, sizeof(vsi));
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+ vsi.request = cmd->tlvid;
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+ strncpy(vsi.ifname, cmd->ifname, sizeof(vsi.ifname) - 1);
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+ good_cmd = cmd_failed;
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+ if (!catvsis(&vsi, vsi_str, sizeof(vsi_str)))
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+ goto out;
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+ rc = snprintf(obuf, obuf_len, "%02x%s%04x%s",
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+ (unsigned int)strlen(arg), arg, (unsigned int)strlen(vsi_str),
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+ vsi_str);
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+ if (rc > 0 || rc < obuf_len)
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+ good_cmd = cmd_success;
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+out:
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+ return good_cmd;
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+}
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+
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+
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static struct arg_handlers arg_handlers[] = {
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{
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.arg = ARG_VDP22_VSI,
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.arg_class = TLV_ARG,
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+ .handle_get = get_arg_vsi,
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.handle_set = set_arg_vsi,
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.handle_test = test_arg_vsi
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},
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--
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2.1.0
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