system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-11-05 18:23:50 +00:00
Code Issues Projects Releases Packages Wiki Activity

r8169: align number of tx descriptors with vendor driver

Browse source 
Lowest number of tx descriptors used in the vendor drivers is 256 in
r8169. r8101/r8168/r8125 use 1024 what seems to be the hw limit. Stay
on the safe side and go with 256, same as number of rx descriptors.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/a52a6de4-f792-5038-ae2f-240d3b7860eb@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Heiner Kallweit 2020-11-01 23:23:52 +01:00 committed by Jakub Kicinski
parent 923ba95ea2
commit f06059c244
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/net/ethernet/realtek/r8169_main.c
View file

@ -67,7 +67,7 @@
#define R8169_REGS_SIZE 256
#define R8169_RX_BUF_SIZE (SZ_16K - 1)
#define NUM_TX_DESC 64 /* Number of Tx descriptor registers */
#define NUM_TX_DESC 256 /* Number of Tx descriptor registers */
#define NUM_RX_DESC 256U /* Number of Rx descriptor registers */
#define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))