On 2021-01-12 21:26 (+0100), Eric Dumazet wrote:
> On Tue, Jan 12, 2021 at 8:25 PM Heath Caldwell wrote:
> >
> > On 2021-01-12 18:05 (+0100), Eric Dumazet wrote:
> > > On Tue, Jan 12, 2021 at 5:02 PM Heath Caldwell
> > > wrote:
> > > >
> > &
On 2021-01-12 18:05 (+0100), Eric Dumazet wrote:
> On Tue, Jan 12, 2021 at 5:02 PM Heath Caldwell wrote:
> >
> > On 2021-01-12 09:30 (+0100), Eric Dumazet wrote:
> > > I think the whole patch series is an attempt to badly break TCP stack.
> >
> > Can you exp
On 2021-01-12 09:30 (+0100), Eric Dumazet wrote:
> I think the whole patch series is an attempt to badly break TCP stack.
Can you explain the concern that you have about how these changes might
break the TCP stack?
Patches 1 and 3 fix clear bugs.
Patches 2 and 4 might be arguable, though.
Is y
window space.
This adjustment keeps the scale of the maximum value consistent - that is,
keeps it in window space.
Without this adjustment, the window scale used could be larger than
necessary, reducing granularity for the advertised window.
Signed-off-by: Heath Caldwell
---
net/ipv4/tcp_output.c
;
0 .:
0.0000.0080.0160.0250.0330.0410.0490.057
Note that the sender was able to send the entire object in a single burst
and that it was fully acknowledged after a little over 1 rtt.
Signed-off-by: Heath Caldwell
---
net/ipv4/tcp_output.c | 2 +-
1 file c
domain of R to [0, sysctl_rmem_max/2], removing
the possibility for V to be greater than sysctl_rmem_max.
Also, abstract the actions of converting "buffer" space to and from
"available" space and clarify comments.
Signed-off-by: Hea
When setting SO_RCVBUF for TCP sockets, account for overhead in accord with
sysctl_tcp_adv_win_scale. This makes the receive buffer overhead
accounting for SO_RCVBUF consistent with how it is accounted elsewhere for
TCP sockets.
Signed-off-by: Heath Caldwell
---
include/net/tcp.h | 17
facilitate research and use cases which could benefit
from more direct and consistent control over the receive buffer and TCP
receive window.
Heath Caldwell (4):
net: account for overhead when restricting SO_RCVBUF
net: tcp: consistently account for overhead for SO_RCVBUF for TCP
tcp: consistently
