net: stmmac: do not clear TBS enable bit on link up/down

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commit 4896bb7c0b upstream.

With the dma conf being reallocated on each call to stmmac_open(), any
information in there is lost, unless we specifically handle it.

The STMMAC_TBS_EN bit is set when adding an etf qdisc, and the etf qdisc
therefore would stop working when link was set down and then back up.

Fixes: ba39b344e9 ("net: ethernet: stmicro: stmmac: generate stmmac dma conf before open")
Cc: stable@vger.kernel.org
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Esben Haabendal 2024-01-26 10:10:41 +01:00 • committed by Greg Kroah-Hartman

parent 923dea2a7e

commit 2524299b61

1 changed files with 3 additions and 0 deletions

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drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

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