Messages in this thread Patch in this message | | | From | Xiaoliang Yang <> | Subject | [PATCH net-next 2/2] net: stmmac: make stmmac-tx-timeout configurable in Kconfig | Date | Wed, 1 Dec 2021 09:47:05 +0800 |
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stmmac_tx_timeout() function is called when a queue transmission timeout. When Strict Priority is used as scheduling algorithms, the lower priority queue may be blocked by a higher prority queue, which will lead to tx timeout. We don't want to enable the tx watchdog timeout in this case. Therefore, this patch make stmmac-tx-timeout configurable.
This patch set the CONFIG_STMMAC_TX_TIMEOUT by default when STMMAC_ETH is selected. If anyone want to disable the tx watchdog timeout of stmmac, he can unset the CONFIG_STMMAC_TX_TIMEOUT in menuconfig.
Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com> --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 12 ++++++++++++ drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 ++++ 2 files changed, 16 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig index 929cfc22cd0c..856c7d056b61 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -271,4 +271,16 @@ config STMMAC_PCI If you have a controller with this interface, say Y or M here. If unsure, say N. + +config STMMAC_TX_TIMEOUT + bool "STMMAC TX timeout support" + default STMMAC_ETH + depends on STMMAC_ETH + help + Support for TX timeout enable on stmmac. + + This selects the TX watchdog timeout support for stmmac driver. The + feature is enabled by default when STMMAC_ETH is selected. If you + want to disable the TX watchdog timeout feature, say N here. + endif diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 89a6c35e2546..0a712b5d0715 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -5421,6 +5421,7 @@ static int stmmac_napi_poll_rxtx(struct napi_struct *napi, int budget) return min(rxtx_done, budget - 1); } +#ifdef CONFIG_STMMAC_TX_TIMEOUT /** * stmmac_tx_timeout * @dev : Pointer to net device structure @@ -5436,6 +5437,7 @@ static void stmmac_tx_timeout(struct net_device *dev, unsigned int txqueue) stmmac_global_err(priv); } +#endif /** * stmmac_set_rx_mode - entry point for multicast addressing @@ -6632,7 +6634,9 @@ static const struct net_device_ops stmmac_netdev_ops = { .ndo_fix_features = stmmac_fix_features, .ndo_set_features = stmmac_set_features, .ndo_set_rx_mode = stmmac_set_rx_mode, +#ifdef CONFIG_STMMAC_TX_TIMEOUT .ndo_tx_timeout = stmmac_tx_timeout, +#endif .ndo_eth_ioctl = stmmac_ioctl, .ndo_setup_tc = stmmac_setup_tc, .ndo_select_queue = stmmac_select_queue, -- 2.17.1
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