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@ -99,38 +99,48 @@ static ssize_t read_file_napi_stats(struct file *file, char __user *user_buf, |
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{ |
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struct ag71xx *ag = file->private_data; |
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struct ag71xx_napi_stats *stats = &ag->debug.napi_stats; |
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char buf[2048]; |
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char *buf; |
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unsigned int buflen; |
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unsigned int len = 0; |
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unsigned long rx_avg = 0; |
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unsigned long tx_avg = 0; |
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int ret; |
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int i; |
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buflen = 2048; |
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buf = kmalloc(buflen, GFP_KERNEL); |
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if (!buf) |
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return -ENOMEM; |
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if (stats->rx_count) |
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rx_avg = stats->rx_packets / stats->rx_count; |
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if (stats->tx_count) |
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tx_avg = stats->tx_packets / stats->tx_count; |
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len += snprintf(buf + len, sizeof(buf) - len, "%3s %10s %10s\n", |
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len += snprintf(buf + len, buflen - len, "%3s %10s %10s\n", |
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"len", "rx", "tx"); |
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for (i = 1; i <= AG71XX_NAPI_WEIGHT; i++) |
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len += snprintf(buf + len, sizeof(buf) - len, |
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len += snprintf(buf + len, buflen - len, |
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"%3d: %10lu %10lu\n", |
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i, stats->rx[i], stats->tx[i]); |
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len += snprintf(buf + len, sizeof(buf) - len, "\n"); |
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len += snprintf(buf + len, buflen - len, "\n"); |
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len += snprintf(buf + len, sizeof(buf) - len, "%3s: %10lu %10lu\n", |
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len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n", |
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"sum", stats->rx_count, stats->tx_count); |
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len += snprintf(buf + len, sizeof(buf) - len, "%3s: %10lu %10lu\n", |
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len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n", |
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"avg", rx_avg, tx_avg); |
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len += snprintf(buf + len, sizeof(buf) - len, "%3s: %10lu %10lu\n", |
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len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n", |
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"max", stats->rx_packets_max, stats->tx_packets_max); |
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len += snprintf(buf + len, sizeof(buf) - len, "%3s: %10lu %10lu\n", |
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len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n", |
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"pkt", stats->rx_packets, stats->tx_packets); |
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return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
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ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); |
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kfree(buf); |
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return ret; |
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} |
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static const struct file_operations ag71xx_fops_napi_stats = { |
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