AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

Merge branch 'net-stmmac-Fix-multicast-filter-on-IPQ806x'

Browse Source 
Jonathan McDowell says:

====================
net: stmmac: Fix multicast filter on IPQ806x

This pair of patches are the result of discovering a failure to
correctly receive IPv6 multicast packets on such a device (in particular
DHCPv6 requests and RA solicitations). Putting the device into
promiscuous mode, or allmulti, both resulted in such packets correctly
being received. Examination of the vendor driver (nss-gmac from the
qsdk) shows that it does not enable the multicast filter and instead
falls back to allmulti.

Extend the base dwmac1000 driver to fall back when there's no suitable
hardware filter, and update the ipq806x platform to request this.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2020-08-12 13:12:52 -07:00
commit ae8bd3021c
2 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
View File

@ -351,6 +351,7 @@ static int ipq806x_gmac_probe(struct platform_device *pdev)
plat_dat->has_gmac = true;
plat_dat->bsp_priv = gmac;
plat_dat->fix_mac_speed = ipq806x_gmac_fix_mac_speed;
plat_dat->multicast_filter_bins = 0;
err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
if (err)

3
drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
View File

@ -164,6 +164,9 @@ static void dwmac1000_set_filter(struct mac_device_info *hw,
value = GMAC_FRAME_FILTER_PR | GMAC_FRAME_FILTER_PCF;
} else if (dev->flags & IFF_ALLMULTI) {
value = GMAC_FRAME_FILTER_PM; /* pass all multi */
} else if (!netdev_mc_empty(dev) && (mcbitslog2 == 0)) {
/* Fall back to all multicast if we've no filter */
value = GMAC_FRAME_FILTER_PM;
} else if (!netdev_mc_empty(dev)) {
struct netdev_hw_addr *ha;