[PATCH v1] TSO and TBS cannot co-exist. TBS requires special descriptor to be allocated at bootup. Initialising Tx queues at probe to support TSO and TBS can help in allocating those resources at bootup.

From: Abhishek Chauhan
Date: Tue Feb 06 2024 - 16:28:33 EST


TX queues with TBS can support etf qdisc hw offload.

Signed-off-by: Abhishek Chauhan <quic_abchauha@xxxxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index 31631e3f89d0..d2f9b8f6c027 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -728,7 +728,7 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
struct stmmac_resources stmmac_res;
struct device *dev = &pdev->dev;
struct qcom_ethqos *ethqos;
- int ret;
+ int ret, i;

ret = stmmac_get_platform_resources(pdev, &stmmac_res);
if (ret)
@@ -822,6 +822,10 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
plat_dat->serdes_powerdown = qcom_ethqos_serdes_powerdown;
}

+ /*Enable TSO on queue0 and enable TBS on rest of the queues*/
+ for (i = 1; i < plat_dat->tx_queues_to_use; i++)
+ plat_dat->tx_queues_cfg[i].tbs_en = 1;
+
return devm_stmmac_pltfr_probe(pdev, plat_dat, &stmmac_res);
}

--
2.25.1