Since commit aa7a648747d8c704a9a81c9e493d386930724e9d ("net: Stop including NFS overhead in defragment max") the following has been reproducibly observed while trying to transfer data over TFTP:

Load address: 0x80408000 Loading: EHCI timed out on TD - token=0x8008d80 T EHCI timed out on TD - token=0x88008d80 Rx: failed to receive: -5

This patch fixes this by lowering our TFTP block size to be within the standard maximal de-fragmentation aka IP packet size again.

Signed-off-by: Marcel Ziswiler marcel.ziswiler@toradex.com

---

Changes in v2: - lowering our TFTP block size rather than increasing the maximal de-fragmentation aka IP packet size as suggested by Joe - add Apalis T30 and Colibri iMX7 as well as suggested by Joe - base on top of u-boot-usb/master as suggested by Marek

include/configs/apalis_t30.h | 2 +- include/configs/colibri_imx7.h | 4 ++-- include/configs/colibri_t30.h | 3 +-- 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/include/configs/apalis_t30.h b/include/configs/apalis_t30.h index 8c76605..3fc1779 100644 --- a/include/configs/apalis_t30.h +++ b/include/configs/apalis_t30.h @@ -52,7 +52,7 @@

/* General networking support */ #define CONFIG_IP_DEFRAG -#define CONFIG_TFTP_BLOCKSIZE 16384 +#define CONFIG_TFTP_BLOCKSIZE 16352 #define CONFIG_TFTP_TSIZE

/* Miscellaneous commands */ diff --git a/include/configs/colibri_imx7.h b/include/configs/colibri_imx7.h index 2ec392e..999963f 100644 --- a/include/configs/colibri_imx7.h +++ b/include/configs/colibri_imx7.h @@ -44,9 +44,9 @@

#define CONFIG_PHYLIB #define CONFIG_PHY_MICREL -#define CONFIG_TFTP_TSIZE #define CONFIG_IP_DEFRAG -#define CONFIG_TFTP_BLOCKSIZE 16384 +#define CONFIG_TFTP_BLOCKSIZE 16352 +#define CONFIG_TFTP_TSIZE

/* ENET1 */ #define IMX_FEC_BASE ENET_IPS_BASE_ADDR diff --git a/include/configs/colibri_t30.h b/include/configs/colibri_t30.h index 3431cde..e2a2549 100644 --- a/include/configs/colibri_t30.h +++ b/include/configs/colibri_t30.h @@ -48,8 +48,7 @@

/* General networking support */ #define CONFIG_IP_DEFRAG -#define CONFIG_NET_MAXDEFRAG (16384 + 4096 + 24) -#define CONFIG_TFTP_BLOCKSIZE 16384 +#define CONFIG_TFTP_BLOCKSIZE 16352 #define CONFIG_TFTP_TSIZE

/* Miscellaneous commands */