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net: vertexcom: mse102x: Implement flag for valid CMD

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After removal of the invalid command counter only a relevant debug
message is left, which can be cumbersome. So add a new flag to debugfs,
which indicates whether the driver has ever received a valid CMD.
This helps to differentiate between general and temporary receive
issues.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250509120435.43646-5-wahrenst@gmx.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Stefan Wahren
2025-05-09 14:04:33 +02:00
committed by Jakub Kicinski
parent aeb90c40ee
commit 6ce9348468
1 changed files with 10 additions and 4 deletions
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14
drivers/net/ethernet/vertexcom/mse102x.c
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@@ -17,6 +17,7 @@
#include <linux/cache.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/string_choices.h>
#include <linux/spi/spi.h>
#include <linux/of_net.h>
@@ -84,6 +85,8 @@ struct mse102x_net_spi {
struct spi_message spi_msg;
struct spi_transfer spi_xfer;
bool valid_cmd_received;
#ifdef CONFIG_DEBUG_FS
struct dentry *device_root;
#endif
@@ -97,16 +100,18 @@ static int mse102x_info_show(struct seq_file *s, void *what)
{
struct mse102x_net_spi *mses = s->private;
seq_printf(s, "TX ring size : %u\n",
seq_printf(s, "TX ring size : %u\n",
skb_queue_len(&mses->mse102x.txq));
seq_printf(s, "IRQ : %d\n",
seq_printf(s, "IRQ : %d\n",
mses->spidev->irq);
seq_printf(s, "SPI effective speed : %lu\n",
seq_printf(s, "SPI effective speed : %lu\n",
(unsigned long)mses->spi_xfer.effective_speed_hz);
seq_printf(s, "SPI mode : %x\n",
seq_printf(s, "SPI mode : %x\n",
mses->spidev->mode);
seq_printf(s, "Received valid CMD once : %s\n",
str_yes_no(mses->valid_cmd_received));
return 0;
}
@@ -196,6 +201,7 @@ static int mse102x_rx_cmd_spi(struct mse102x_net *mse, u8 *rxb)
ret = -EIO;
} else {
memcpy(rxb, trx + 2, 2);
mses->valid_cmd_received = true;
}
return ret;