[PATCH net-next v4 0/4] net: stmmac: preserve and restore the installed EST schedule

[Lorenzo Bianconi]

> Continue Lorenzo Bianconi's EST replay series with v4 of the unmerged work:
> https://lore.kernel.org/r/20260902-stmmac-est-reapply-after-open-v3-0-e72a6df5a7ef@oss.qualcomm.com

Hi James,

My plan is to continue working on this series (the code is available in [0]),
I am just waiting other patches to be merged upstream before reposting in order
to avoid any conflict. I guess it is correct to publicly ask before posting
other people patches.
Moreover, this is thecnically a fix so this seires should targed net tree.

Regards,
Lorenzo

[0] https://github.com/LorenzoBianconi/net-next/tree/b4/stmmac-est-reapply-after-open

> 
> The PTP initialization fix from that series is already in the base.
> Carry the remaining embedded-state and explicit-enable preparations,
> and restore the installed schedule after open and resume reset.
> 
> Build TAPRIO replacements separately so rejected updates cannot
> corrupt the installed schedule. Rebase the previous schedule against
> the current PHC when rolling back a failed hardware update, and keep
> DMA stopped until replay succeeds. These changes do not depend on
> the later datapath recovery series.
> 
> Changes in v4:
> - Omit the merged PTP initialization patch and adapt the remaining
>   changes to probe-time PTP locking and current TAPRIO error handling.
> - Separate schedule validation/rollback from open and resume replay.
> - Reuse the base-time helper for replacement, PHC adjustment and
>   rollback; propagate errors while preserving the installed cache.
> - Start DMA only after the installed schedule has been restored.
> - Link to v3: https://lore.kernel.org/r/20260902-stmmac-est-reapply-after-open-v3-0-e72a6df5a7ef@oss.qualcomm.com
> 
> Changes in v3:
> - Guard priv->est.enable update using est_lock mutex.
> - Embed stmmac_est in stmmac_priv struct.
> - Rework locking in tc_taprio_configure().
> - Fix possible divided by zero crash in tc_taprio_configure().
> - Add missing reconfiguration during stmmac_resume().
> - Honor ptp error code in __stmmac_open() and stmmac_resume().
> - Link to v2: https://lore.kernel.org/r/20260829-stmmac-est-reapply-after-open-v2-1-5e5ccb185e92@oss.qualcomm.com
> 
> Changes in v2:
> - Rename stmmac_est_reconfigure() in stmmac_setup_est().
> - Rely on stmmac_setup_est() in tc_taprio_configure().
> - Link to v1: https://lore.kernel.org/r/20260825-stmmac-est-reapply-after-open-v1-1-dfa80735e0a1@oss.qualcomm.com
> 
> Assisted-by: Codex:gpt-6-astra
> Signed-off-by: James Hilliard <james.hilliard1 at gmail.com>
> 
> ---
> James Hilliard (1):
>       net: stmmac: preserve the installed EST schedule on errors
> 
> Lorenzo Bianconi (3):
>       net: stmmac: embed struct stmmac_est in stmmac_priv struct
>       net: stmmac: pass the desired EST enable state to est_configure()
>       net: stmmac: restore EST before starting DMA on open and resume
> 
>  drivers/net/ethernet/stmicro/stmmac/hwif.h        |   2 +-
>  drivers/net/ethernet/stmicro/stmmac/stmmac.h      |   2 +-
>  drivers/net/ethernet/stmicro/stmmac/stmmac_est.c  |  47 ++++++-
>  drivers/net/ethernet/stmicro/stmmac/stmmac_est.h  |  13 ++
>  drivers/net/ethernet/stmicro/stmmac/stmmac_main.c |  38 ++++--
>  drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c  |  59 ++++-----
>  drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c   | 142 +++++++++++-----------
>  7 files changed, 176 insertions(+), 127 deletions(-)
> ---
> base-commit: 1631d79ae57dce2c5f88ad278307028638a8b4d9
> change-id: 20260824-stmmac-est-reapply-after-open-181d70a15eb6
> 
> Best regards,
> --  
> James Hilliard <james.hilliard1 at gmail.com>
> 
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