diff options
| author | David S. Miller <davem@davemloft.net> | 2016-12-08 13:07:11 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-12-08 13:07:11 -0500 |
| commit | 797149d0342d2f890d78b760acae5a6a9b6753f4 (patch) | |
| tree | b6e62d85500ffa47e347dfa4f380f3c69eaabbdf /include | |
| parent | 3f0dd6b79c014231e671f754a499aa017c2b955c (diff) | |
| parent | 4022d039a315951e59d95d22e79198d861ce4490 (diff) | |
Merge branch 'stmmac-DMA-burst'
Niklas Cassel says:
====================
net: stmmac: make DMA programmable burst length more configurable
Make DMA programmable burst length more configurable in the stmmac driver.
This is done by adding support for independent pbl for tx/rx through DT.
More fine grained tuning of pbl is possible thanks to a DT property saying
that we should NOT multiply pbl values by x8/x4 in hardware.
All new DT properties are optional, and created in a way that it will not
affect any existing DT configurations.
Changes since V1:
Created cover-letter.
Rebased patch set against next-20161205, since conflicting patches to
stmmac_platform.c has been merged since V1.
Changes since V2:
Moved default value initialization of pbl to stmmac_platform.c
and added a check for pbl != 0 in stmmac_main.c,
to catch a possble pbl == 0 from pci glue.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/stmmac.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index 3537fb33cc90..266dab9ad782 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -88,6 +88,9 @@ struct stmmac_mdio_bus_data { struct stmmac_dma_cfg { int pbl; + int txpbl; + int rxpbl; + bool pblx8; int fixed_burst; int mixed_burst; bool aal; |