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Sfs mctp integration issues #213

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Sfs mctp integration issues #213

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ccaf029
drivers:net:mctp: add 1ms sleep before i3c xmit
mahkurap Dec 19, 2025
b4aaeff
net:mctp: increase the MCTP socket timeout
mahkurap Dec 19, 2025
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9 changes: 8 additions & 1 deletion drivers/net/mctp/mctp-i3c.c
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Original file line number Diff line number Diff line change
Expand Up @@ -412,14 +412,21 @@ static void mctp_i3c_xmit(struct mctp_i3c_bus *mbus, struct sk_buff *skb)
data[data_len] = pec;

xfer.data.out = data;

/* add sleep of 1ms before and after the trasmit to give
* time to the slow target devices to empty the previously
* sent requests. Needed especially when the MCTP message
* consists of multiple fragments.
*/
msleep (1);
rc = i3c_device_do_priv_xfers(mi->i3c, &xfer, 1);
msleep (1);
if (rc == 0) {
stats->tx_bytes += data_len;
stats->tx_packets++;
} else {
stats->tx_errors++;
}

out:
if (mi)
mutex_unlock(&mi->lock);
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2 changes: 1 addition & 1 deletion net/mctp/route.c
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Expand Up @@ -27,7 +27,7 @@
#include <trace/events/mctp.h>

static const unsigned int mctp_message_maxlen = 64 * 1024;
static const unsigned long mctp_key_lifetime = 6 * CONFIG_HZ;
static const unsigned long mctp_key_lifetime = 2 * 6 * CONFIG_HZ;

static void mctp_flow_prepare_output(struct sk_buff *skb, struct mctp_dev *dev);

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