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net: dc2114x: allow users to decide whether to detect the tx No Carrier errors

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Some IP cores of dc2114x or its variants do not comply so well with
the behaviors described by the official document. A packet could be
sent successfully but reported with No Carrier error. Latest drivers
of this IP core have not detect this error anymore.

Signed-off-by: Hanyuan Zhao <zhaohy22@mails.tsinghua.edu.cn>
This commit is contained in:
Hanyuan Zhao
2024-08-09 16:56:59 +08:00
committed by Tom Rini
parent 8c18c53164
commit 5fa3e10cec
2 changed files with 13 additions and 0 deletions
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11
drivers/net/Kconfig
View File

@@ -770,6 +770,17 @@ config TULIP_SUPPORT_NON_PCI
Say Y to this and you can run this driver on platforms that do not
have PCI controllers.
config TULIP_IGNORE_TX_NO_CARRIER
bool "Ignore tx no carrier error"
depends on TULIP
default n
help
Some IP cores of dc2114x or its variants do not comply so well with
the behaviors described by the official document. A packet could be
sent successfully but reported with No Carrier error. Latest drivers
of this IP core do not detect this error anymore. Say Y to this could
disable handling of this error.
config XILINX_AXIEMAC
select PHYLIB
select MII

2
drivers/net/dc2114x.c
View File

@@ -371,7 +371,9 @@ static int dc21x4x_send_common(struct dc2114x_priv *priv, void *packet, int leng
if (le32_to_cpu(priv->tx_ring[priv->tx_new].status) & TD_ES) {
priv->tx_ring[priv->tx_new].status = 0x0;
#if !CONFIG_IS_ENABLED(TULIP_IGNORE_TX_NO_CARRIER)
goto done;
#endif
}
status = length;