mlxsw: Reduce memory footprint of mlxsw driver
Status from this message: This series was applied to netdev/net-next.git (main)
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b4 am [email protected]Versions newest first
Patches in v1 All 2 applied
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | mlxsw: pci: Store number of scatter/gather entries for maximum packet sizedrivers/ | +20 | 0 replies | Applied |
| 2/2 | mlxsw: pci: Use fragmented buffersdrivers/ | +129 | 0 replies | Applied |
Reviews trailers per patch
All 2 patches have a Reviewed-by or Acked-by.
| Patch | Ido Schimmel |
|---|---|
| 1/2 | R-b |
| 2/2 | R-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH net-next 0/2] mlxsw: Reduce memory footprint of mlxsw driver
Amit Cohen writes:
A previous patch-set used page pool to allocate buffers, to simplify the change, we first used one continuous buffer, which was allocated with order > 0. This set improves page pool usage to allocate the exact number of pages which are required for packet.
This change requires using fragmented SKB, till now all the buffer was in the linear part. Note that 'skb->truesize' is decreased for small packets.
This set significantly reduces memory consumption of mlxsw driver. The footprint is reduced by 26%.
Patch set overview:
Patch #1 calculates number of scatter/gather entries and stores the value Patch #2 converts the driver to use fragmented buffers
Amit Cohen (2):
mlxsw: pci: Store number of scatter/gather entries for maximum packet
size
mlxsw: pci: Use fragmented buffers
drivers/net/ethernet/mellanox/mlxsw/pci.c | 183 ++++++++++++++++++---- 1 file changed, 149 insertions(+), 34 deletions(-)
Signature · 1 line
2.45.0