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