m_val = ctx->tx_low_mem_max_cnt;
> + }
> + }
84a116
> + ctx->tx_low_mem_val--;
-- File: include/linux/usb/cdc_ncm.h
130a163,164
> + u32 tx_low_mem_max_cnt;
> + u32 tx_low_mem_val;
Jim Baxter (1):
net: cdc_ncm: Reduce
ocations before requesting a full size one to not
put additional pressure on a low memory system.
Once the memory is compacted the CDC-NCM data can resume transmitting
at the normal tx_max rate once again.
Signed-off-by: Jim Baxter
---
V1: Sent to linux-usb for review.
V2: Added code to increase
x_max rate once again.
Signed-off-by: Jim Baxter
---
drivers/net/usb/cdc_ncm.c | 39 +++
include/linux/usb/cdc_ncm.h | 1 +
2 files changed, 28 insertions(+), 12 deletions(-)
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index b5cec18.
will attempt to
use a 2048 Byte minimum size NTB if the allocation of the maximum size NTB
fails.
This allows the connection to limp along until the memory has been recovered
which was usually between 1 and 4 NTBS on our heavy traffic system.
Jim Baxter (1):
net: cdc_ncm: Reduce memory use when k
ed as an error.
Solution
To resolve this I have cached the value of
ctx->tx_max - skb_out->len before the memset operation.
V1: Sent to linux-use for review.
V2: Added netdev mailing list as it was missed for V1.
Jim Baxter (1):
net: cdc_ncm: Fix TX zero padding
he size of
the memory to be zeroed before the skb_put
and using this in the memset call.
Signed-off-by: Jim Baxter
Reviewed-by: Bjørn Mork
---
V1: Sent to linux-use for review.
V2: Added netdev mailing list as it was missed for V1.
drivers/net/usb/cdc_ncm.c | 11 +++
1 file changed, 7 in
