From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Chen-Yu Tsai <wens@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>, Frank Li <Frank.Li@nxp.com>,
imx@lists.linux.dev, Jakub Kicinski <kuba@kernel.org>,
Jan Petrous <jan.petrous@oss.nxp.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org,
linux-mediatek@lists.infradead.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org,
Maxime Chevallier <maxime.chevallier@bootlin.com>,
Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>,
netdev@vger.kernel.org, Paolo Abeni <pabeni@redhat.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
s32@nxp.com, Samuel Holland <samuel@sholland.org>,
Sascha Hauer <s.hauer@pengutronix.de>, Yao Zi <me@ziyao.cc>
Subject: [PATCH net-next 0/7] net: stmmac: start to shrink memory usage
Date: Sat, 7 Mar 2026 11:02:17 +0000 [thread overview]
Message-ID: <aawFuXTVAgVOrw4k@shell.armlinux.org.uk> (raw)
Hi,
Start shrinking stmmac's memory usage by avoiding using "int" for
members that are only used for 0/1 (boolean) values, or values that
can't be larger than 255.
In addition, as struct stmmac_dma_cfg is approximately a cache line,
shrinks below a cache line as a result of this patch set, and is
required, there is no point separately allocating this from
struct plat_stmmacenet_data. Embed it into the end of this struct
and set the existing pointer to avoid large wide-spread changes.
Lastly, add documentation for struct stmmac_dma_cfg, and document
the stmmac clocks as best we can given the driver history.
drivers/net/ethernet/stmicro/stmmac/common.h | 4 +-
.../ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c | 7 +-
.../net/ethernet/stmicro/stmmac/dwmac-loongson.c | 6 +-
.../net/ethernet/stmicro/stmmac/dwmac-mediatek.c | 8 +-
.../net/ethernet/stmicro/stmmac/dwmac-motorcomm.c | 4 -
.../ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 4 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-s32.c | 2 +-
.../net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 4 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c | 2 +-
.../net/ethernet/stmicro/stmmac/dwmac1000_core.c | 2 +-
.../net/ethernet/stmicro/stmmac/dwmac100_core.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 4 +-
.../net/ethernet/stmicro/stmmac/dwxgmac2_core.c | 4 +-
drivers/net/ethernet/stmicro/stmmac/hwif.h | 2 +-
drivers/net/ethernet/stmicro/stmmac/stmmac.h | 2 +-
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 227 +++++++++++----------
drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c | 11 +-
.../net/ethernet/stmicro/stmmac/stmmac_platform.c | 43 ++--
include/linux/stmmac.h | 93 +++++++--
23 files changed, 239 insertions(+), 200 deletions(-)
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
next reply other threads:[~2026-03-07 11:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-07 11:02 Russell King (Oracle) [this message]
2026-03-07 11:02 ` [PATCH net-next 1/7] net: stmmac: provide plat_dat->dma_cfg in stmmac_plat_dat_alloc() Russell King (Oracle)
2026-03-07 11:02 ` [PATCH net-next 2/7] net: stmmac: convert plat_stmmacenet_data booleans to type bool Russell King (Oracle)
2026-03-07 11:02 ` [PATCH net-next 3/7] net: stmmac: reorder structs to reduce memory consumption Russell King (Oracle)
2026-03-07 11:02 ` [PATCH net-next 4/7] net: stmmac: use u8 for ?x_queues_to_use and number_?x_queues Russell King (Oracle)
2026-03-07 11:03 ` [PATCH net-next 5/7] net: stmmac: use u8 for host_dma_width and similar struct members Russell King (Oracle)
2026-03-07 11:03 ` [PATCH net-next 6/7] net: stmmac: add documentation for stmmac_dma_cfg members Russell King (Oracle)
2026-03-07 11:03 ` [PATCH net-next 7/7] net: stmmac: add documentation for clocks Russell King (Oracle)
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