txrx.c - added function and flag for defining socket prio

Author: nilsalon100

src/txrx.c

@@ -132,6 +132,8 @@ static struct argp_option options[] = {
 	{"wakeup",	'w',	0,	0, "enable need_wakeup"},
 	{"vlan-prio",	'q',	"NUM",	0, "packet vlan priority, also socket priority\n"
 					   "	Def: 0 | Min: 0 | Max: 7"},
+	{"socket-prio",	'g',	"NUM",	0, "packet socket  priority\n"
+					   "	Def: 0 | Min: 0 | Max: 15"},
 	/* Reserved: u / w */
 
 	{0,0,0,0, "TX control:" },
@@ -188,6 +190,19 @@ static error_t parser(int key, char *arg, struct argp_state *state)
 #endif
 		opt->vlan_prio = opt->socket_prio * 32;
 		break;
+	case 'g':
+		len = strlen(arg);
+		res = strtol((const char *)arg, &str_end, 10);
+		if (errno || res < 0 || res >= 15 || str_end != &arg[len])
+			exit_with_error("Invalid queue number/socket priority. Check --help");
+		opt->socket_prio = (uint32_t)res;
+		//printf("\n%d\n", opt->socket_prio);
+		//#ifdef WITH_XDP
+		if (opt->socket_mode == MODE_AFXDP)
+		  exit_with_error("AF_XDP does not support setting socket priority.");
+		//#endif
+		//opt->vlan_prio = opt->socket_prio * 32;
+		break;
 	case 'X':
 		opt->socket_mode = MODE_AFXDP;
 		break;