add gmac0 read mac form eeprom,pcie30x1

hc

2023-11-22 d0a428a6556ea5a006e22e28b0b1cd037885fe20

 kernel/tools/perf/bench/sched-messaging.c
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@@ -69,11 +69,10 @@
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 /* Block until we're ready to go */
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 static void ready(int ready_out, int wakefd)
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 {
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-	char dummy;
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 	struct pollfd pollfd = { .fd = wakefd, .events = POLLIN };
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 	/* Tell them we're ready. */
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-	if (write(ready_out, &dummy, 1) != 1)
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+	if (write(ready_out, "R", 1) != 1)
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 		err(EXIT_FAILURE, "CLIENT: ready write");
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 	/* Wait for "GO" signal */
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@@ -88,6 +87,7 @@
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 	unsigned int i, j;
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 	ready(ctx->ready_out, ctx->wakefd);
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+	memset(data, 'S', sizeof(data));
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 	/* Now pump to every receiver. */
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 	for (i = 0; i < nr_loops; i++) {