diff options
| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2026-03-09 12:39:44 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-03-11 05:54:07 +0300 |
| commit | 9fe167ab790b10c9eb9ef82f46a03c83f9953b61 (patch) | |
| tree | 312a03832dac1e95db7d53ea58129b3bd9b5b144 /include/linux | |
| parent | 758ed85aadd0668c66cb359c63f384992b10938c (diff) | |
| download | linux-9fe167ab790b10c9eb9ef82f46a03c83f9953b61.tar.xz | |
net: stmmac: add documentation for stmmac_dma_cfg members
Add documentation of each of the struct stmmac_dma_cfg members. dche
remains undocumented as I don't have documentation that covers this.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
Link: https://patch.msgid.link/E1vzX5U-0000000CVsQ-162V@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/stmmac.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index 11886189bf51..1af3a5e197c9 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -93,16 +93,37 @@ struct stmmac_mdio_bus_data { }; struct stmmac_dma_cfg { + /* pbl: programmable burst limit + * txpbl: transmit programmable burst limit + * rxpbl: receive programmable burst limit + * If txpbl or rxpbl are zero, the value of pbl will be substituted. + * Range 0 - 63. + */ int pbl; int txpbl; int rxpbl; + /* pblx8: multiplies pbl, txpbl, rxpbl by a factor of 8 for dwmac >= + * 3.50a, or a factor of 4 for previous versions. + */ bool pblx8; + /* fixed_burst: + * when set, AXI bursts defined by axi_blen_regval are permitted. + * AHB uses SINGLE, INCR4, INCR8 or INCR16 during burst transfers. + * when clear, AXI and AHB use SINGLE or INCR bursts. + */ bool fixed_burst; + /* mixed_burst: + * when set and fixed_burst is clear, AHB uses INCR for bursts > 16 + * and SINGLE or INCRx for bursts <= 16. + */ bool mixed_burst; + /* aal: address aligned bursts for AHB and AXI master interface */ bool aal; + bool dche; bool eame; + /* multi_msi_en: stmmac core internal */ bool multi_msi_en; - bool dche; + /* atds: stmmac core internal */ bool atds; }; |