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-Date: Sat, 13 Mar 2021 13:18:26 +0000
-From: Jonathan McDowell <noodles@earth.li>
-To: Giuseppe Cavallaro <peppe.cavallaro@st.com>,
- Alexandre Torgue <alexandre.torgue@st.com>,
- Jose Abreu <joabreu@synopsys.com>,
- David Miller <davem@davemloft.net>,
- Jakub Kicinski <kuba@kernel.org>,
- Maxime Coquelin <mcoquelin.stm32@gmail.com>,
- netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com,
- linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
-Subject: [PATCH net-next] net: stmmac: Set FIFO sizes for ipq806x
-Message-ID: <20210313131826.GA17553@earth.li>
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-
-Commit eaf4fac47807 ("net: stmmac: Do not accept invalid MTU values")
-started using the TX FIFO size to verify what counts as a valid MTU
-request for the stmmac driver. This is unset for the ipq806x variant.
-Looking at older patches for this it seems the RX + TXs buffers can be
-up to 8k, so set appropriately.
-
-(I sent this as an RFC patch in June last year, but received no replies.
-I've been running with this on my hardware (a MikroTik RB3011) since
-then with larger MTUs to support both the internal qca8k switch and
-VLANs with no problems. Without the patch it's impossible to set the
-larger MTU required to support this.)
-
-Signed-off-by: Jonathan McDowell <noodles@earth.li>
----
- drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c | 2 ++
- 1 file changed, 2 insertions(+)
-
---- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
-+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
-@@ -405,6 +405,8 @@ static int ipq806x_gmac_probe(struct pla
- plat_dat->bsp_priv = gmac;
- plat_dat->fix_mac_speed = ipq806x_gmac_fix_mac_speed;
- plat_dat->multicast_filter_bins = 0;
-+ plat_dat->tx_fifo_size = 8192;
-+ plat_dat->rx_fifo_size = 8192;
-
- err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
- if (err)
projects / openwrt / staging / hauke.git / blobdiff